CN100587312C

CN100587312C - Spacing structure for head

Info

Publication number: CN100587312C
Application number: CN200710150854A
Authority: CN
Inventors: 武付军; 刘春山
Original assignee: Tianjin Yaan Technology Electronic Co Ltd
Current assignee: Tianjin Yaan Technology Co Ltd
Priority date: 2007-12-10
Filing date: 2007-12-10
Publication date: 2010-02-03
Anticipated expiration: 2027-12-10
Also published as: CN101178148A

Abstract

The invention relates to a tripod head position limit structure of an indoor and outdoor tripod head; wherein, a plectrum arranged in a driven wheel consists of a position limit frame and a rolling column fixedly arranged at the end of the position limit frame; the track of the rolling column is on the track of a stroke switch spring leaf; the interior of the driven wheel is also fixedly providedwith a limited position-limit column; the side edge of a vertical plate is provided with a concave trough; the motion track of the limited position-limit column can motion at the external edge of thevertical plate and can be clamped on the concave trough of the vertical plate. The tripod head structure of the invention has the advantages of simple and compact structure, small land occupying of tripod head, high sensitiveness and reliability, prolonging the service life of the stroke switch, saving the funds by not frequently changing the stroke switch, not damaging the interior of the tripodhead even when the stroke switch is out of control or damaged, and effectively reducing the failure rate of the tripod head.

Description

A kind of limit structure of The Cloud Terrace

Technical field

The invention belongs to the monitoring field, relate to indoor and outdoor The Cloud Terrace spacing in the angle of swing in level and vertical when rotation, especially a kind of limit structure of The Cloud Terrace.

Background technique

The present indoor and outdoor The Cloud Terrace on the market, its vertical rotation angular range are generally 90 degree (specific use also have greater than 90 degree), and the control of rotation angle comes predetermined angle by position limit switch.The shortcoming that exists is: 1. owing to The Cloud Terrace rotator inertia reason and circuit board device or motor, reasons such as voltage functuation, regular meeting collides the entity of position limit switch when pushing the plectrum (or reversed column) of position limit switch, cause position limit switch to lose efficacy, or (be that motor is not listened commander disorderly to phenomenon, should just change it but reverses, and continue to rotate), will to damage position limit switch by pressure (be that The Cloud Terrace can not stop at once after plectrum was pressed onto the reed of position limit switch to plectrum as a result, because the inertia that rotates, The Cloud Terrace also can rotate a small angle, like this plectrum repeatedly interference push and will break position limit switch); 2. out of control or motor occurs disorderly when phenomenon at position limit switch, and plectrum can directly hit position limit switch, and is enough as plectrum intensity at this moment, can cause position limit switch to be broken so, even wire harness occurs and twist line, short circuit or break other part and cause The Cloud Terrace to damage.More than two kinds of defectives go to toward being difficult for finding that because of first kind of situation, the position limit switch need just can be bad after repeatedly interference is pushed at product export.So in the client uses, occur damaging through regular meeting.Second kind of situation, the reason more complicated just can be found after having only the The Cloud Terrace internal components to be broken.In order to overcome this two defectives, now on the market useful rubber ring and reversed column as damping device, but this device can only solve the destruction that first kind of situation causes, and the easy ageing failure distortion of rubber self, especially when outdoor application, be subjected to Temperature Influence, the elastic force of the rubber ring after the distortion of losing efficacy is uncontrollable, and the life-span is shorter.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art part, can effectively solve the limit structure that position limit switch was broken and can guarantee a kind of The Cloud Terrace of The Cloud Terrace proper functioning.

Technological scheme of the present invention is:

A kind of limit structure of The Cloud Terrace, be included in the rotatingshaft that inputs to the vertical rotation of vidicon camera installed on the riser of The Cloud Terrace, with motor vertical by its driving wheel engagement and the follower that is solidly installed with rotatingshaft, and the position limit switch of on the riser plane, installing, the plectrum on follower, installed, it is characterized in that:

(1). the plectrum that is installed in the follower the inside reaches the roller that installs in this position-limited rack end by position-limited rack and constitutes, and the track of this roller is on the track of stroke switch spring sheet;

(2). follower the inside also is fixed with a limit limited post, is shaped on a groove at the side of riser, and the running orbit of this limit limited post is in the motion of riser outer rim and can block on the made groove of riser.

And the plectrum that is installed in the follower the inside has two also also to reach the roller formation that installs in this position-limited rack end by position-limited rack.

Advantage of the present invention and good effect are:

1. the designed novel platform-limited structure of the present invention, roller (integral body is plectrum) has been installed on position-limited rack, thoroughly solved the problem that plectrum breaks position limit switch, promptly allow position-limited rack drive roller except that the rotary motion trace of moving axis rotation and the formation oneself that rotates, when forwarding the position limit switch place to and run into the position limit switch reed, roller self also can roll.By calculating rotary motion trace and distance each other, angle etc., roller only can be pressed into the reed of position limit switch, gets out of the way to close to play the effect that opens or closes, and can not run into the position limit switch entity.No matter so switch failure, motor disorderly to or problem such as The Cloud Terrace inertia, roller can not collide the entity of position limit switch.When position limit switch really lost efficacy, at this moment specially for this reason the limit limited post of structural design (promptly extremely spacing) can work.It is limited in (as 0～90 °) in the rotary angular range with The Cloud Terrace, and can not break other part, or problems such as line occur turning round.So promptly protect switch, played platform-limited effect again.

2. involved in the present invention is platform-limited simple and compact for structure, and it is little to take the The Cloud Terrace space, and sensitivity and reliability height, has prolonged the life-span of position limit switch, need not often change position limit switch and the saving fund; Even if under the out of control or damaged condition, The Cloud Terrace inside can be not impaired yet, reduced the rate of fault of The Cloud Terrace effectively at position limit switch.

Description of drawings

Fig. 1 looks sketch for structure master of the present invention;

Fig. 2 is that the A-A of Fig. 1 is to the structure sectional view;

Fig. 3 is the structural representation after the present invention removes follower;

Fig. 4 is the structural representation after the present invention removes riser;

Fig. 5 is the structural representation (after removing follower) of second embodiment of the invention;

Fig. 6 is the structural representation (after removing riser) of second embodiment of the invention.

Embodiment

Below in conjunction with accompanying drawing embodiments of the invention are done further narration; Need to prove that present embodiment is declarative, rather than determinate, can not limit protection scope of the present invention with this.

The present invention be directed to existing The Cloud Terrace,, therefore do not provide the overall structure figure of The Cloud Terrace owing to only the vertical rotating part of The Cloud Terrace is improved.Only just provide below and illustrate and describe with the structure of the vertical rotating part of The Cloud Terrace.

First embodiment:

The rotatingshaft 4 that motor vertical 6 is installed on the riser 10 of The Cloud Terrace and inputs to the vertical rotation of vidicon camera, the follower 12 that this motor vertical is solidly installed by its driving wheel 5 engagements and rotatingshaft is realized the rotation of running shaft.Position limit switch 3 is installed on the riser plane, and position limit switch, driving wheel and follower are all by front shroud 1 encapsulation.

Innovation part of the present invention is:

1. the plectrum that is installed in follower the inside (being corresponding riser plane) reaches the roller 8 that installs in this position-limited rack end by position-limited rack 9 and constitutes, wherein the track 7 of roller is on the track of stroke switch spring sheet, rather than on the track of stroke Switch main body, so roller can impact stroke switch.

Specifically this structural type when follower and rotatingshaft are rotating, and drive the position-limited rack that is contained in follower one side and do rotation motion with the roller moving axis that rotates.Run into and be contained in static relatively on the riser (only do and horizontally rotate) position limit switch reed when forwarding several angle (can be provided with) roller to The Cloud Terrace, after under normal circumstances The Cloud Terrace (as clockwise) rotates and stops, and should be at once to revolution in the other direction, but the inertia that when The Cloud Terrace rotates, produces, impel The Cloud Terrace can not turn round at once, but also just can turn round after can continuing to rotate forward a small angle.At this moment roller rotates because of the movement locus along oneself, and position limit switch and roller have certain included angle and distance, and roller is run into the entity of position limit switch never, and at this moment driven gear begins revolution.When the follower revolution, when roller is met another position limit switch reed, can repeat above-mentioned action as a same reason.The entity of position limit switch can not clashed into like this, has only the switch spring sector-meeting to be subjected to pushing of roller, and switch worked when this pressing force reached certain limit, and the stroke switch disconnects or connection.

2. also be fixed with a limit limited post 2 in the follower the inside, side at riser is shaped on a groove (not having label), and the running orbit 11 of this limit limited post can be to block on the made groove of riser at the lower dead centre of follower also in riser outer rim motion (being generally 0～90 ° because of vertical angle).The effect of limit limited post be out of control when position limit switch, motor does not stop or during irregular rotation, when forwarding the dead point to, limit limited post can be run into riser, forces The Cloud Terrace to stop, not broken with device in the protection The Cloud Terrace.

Second embodiment:

Only be for the ease of adjusting angle, two cover plectrums (seeing Fig. 5,6) also can be installed, promptly on the basis of first embodiment's a plectrum, another set of plectrum (being made of position-limited rack 13, roller 14) also is installed, by adjusting the mutual position of roller, further realize the adjustment of The Cloud Terrace angle of swing like this.

Working principle of the present invention is:

Plectrum is except that the moving axis that rotates rotates, forms the rotary motion trace of oneself, and when forwarding the position limit switch place to and running into the position limit switch reed, self also can roll.By calculating rotary motion trace and distance each other, angle etc., plectrum only can be pressed into the reed of position limit switch, gets out of the way to close to play the effect that opens or closes, and can not run into the position limit switch entity.No matter so switch failure, motor disorderly to or problem such as The Cloud Terrace inertia, plectrum can not collide the entity of position limit switch.When position limit switch really lost efficacy, at this moment specially for this reason the limit limited post of structural design (being that the dead point is spacing) can work.It is limited in (as 0～90 °) in the rotary angular range with The Cloud Terrace, and can not break other part, or problems such as line occur turning round.So promptly protect switch, played platform-limited effect again.

Claims

1. the limit structure of a The Cloud Terrace, be included in the rotatingshaft that inputs to the vertical rotation of vidicon camera installed on the riser of The Cloud Terrace, with motor vertical by its driving wheel engagement and the follower that is solidly installed with rotatingshaft, and the position limit switch of on the riser plane, installing, be installed in the plectrum of follower the inside, it is characterized in that:

2. the limit structure of a kind of The Cloud Terrace according to claim 1 is characterized in that: the plectrum that is installed in the follower the inside has two and also constitute by position-limited rack and the roller that installs in this position-limited rack end.