CN103267203A

CN103267203A - Video detection camera automatic centering device in pipe

Info

Publication number: CN103267203A
Application number: CN201310221635XA
Authority: CN
Inventors: 葛乐通; 李先波; 陈建栋; 周小星
Original assignee: Changzhou University
Current assignee: Changzhou University
Priority date: 2013-06-05
Filing date: 2013-06-05
Publication date: 2013-08-28

Abstract

The invention discloses an automatic centering device mainly used for a camera to detect videos in a pipe. The video detection camera automatic centering device in the pipe keeps the camera in the central position of a pipeline all the time. The centering device is mainly composed of a central cylinder, sleeves, springs, supporting rods and the like, wherein the camera is arranged inside the central cylinder, the two sleeves are arranged on the central cylinder, one sleeve is axially fixed, the other sleeve can slide freely on a central cylinder body, a supporting part is composed of three sets of supporting rods, the supporting robs are distributed in a 120-degree circumference mode, each supporting rod is composed of a supporting rod body, a wheel, a pin, a clamp ring and corresponding parts, the two supporting rods respectively arranged on the two sleeves are crossed and are connected through the pins, each supporting rod is provided with a small hole to fix a spring, the springs play a role in guaranteeing that the three sets of supporting rods are contacted with the pipe wall all the time, and through the assembly of different positions of three motion secondary connecting holes in the middles of the supporting rods, three connecting schemes of the supporting rods are obtained, and therefore the centering device is applicable to work in a large pipe diameter range.

Description

Video detects camera automatic centering device in the pipe

Technical field

The present invention relates in the pipework field a kind of be mainly used in managing in the adjustable automatic centring device of the camera that detects of video.

Background technique

At present, the mode that detects for inner-walls of duct generally all is to adopt camera shooting and video to detect both at home and abroad, and the camera overwhelming majority is directly installed on above the pipeline robot, namely mainly rely on action carrier---pipeline robot, present existing pipe video detects camera, all there is not well to solve the problem that it occupy pipeline center, perhaps ignored this problem on the one hand, the consequence of bringing is exactly: photographic effect is undesirable, can not observe simultaneously very clearly and understand pipe interior situation all around.

What the present invention adopted is that a kind of automatic centring device improves the position of camera to reach best video detection effect.For circular pipe, the shooting optimum position should be the pipeline center place, general shooting equipment all is directly to be fixed on the moving device, and moving device is subjected to the restriction of this body structure, can not make camera be centered at the pipeline center place all the time, this has just limited the visual range of camera greatly, and influence is to the accurate judgement of pipe interior actual conditions.So this automatic centring device can make camera be in the optimum position all the time, namely pipeline center so just can have more clearly the situation around the pipeline simultaneously and understand.

Summary of the invention

The purpose of this invention is to provide a kind of adjustable automatic centring device that can make camera be in the pipeline center place from start to finish.The present invention is easy to make, and is quick detachable, can realize regulating voluntarily when caliber changes.

The technical solution used in the present invention is: automatic centring device mainly is made up of several parts such as central tube, sleeve, spring and struts.The central tube front end has three screw thread positioning holes, in order to can fix cam device in the central tube with screw, the central tube rear end has the circumference Baltimore groove, rotates so that block plate can be stuck on the central tube; Two sleeves are installed on the central tube, can be around the central tube circular movement, but one of them is axially fixed on the central tube, and another sleeve can be free to slide at central tube; Supporting part is made up of three groups of struts, and becomes 120 degree circle distribution; Strut is made up of corresponding part such as two bar sheets, wheel, pin and snap rings, two struts intersect and connect by pin, have aperture on the strut, in order to fixing spring, and the spring role spurs back sleeve slip exactly, have a lot of apertures on the strut, by the aperture of these diverse locations, spring can have various mount scheme; Five kinematic pair attachment holes are arranged respectively on each strut, and the assembling of the diverse location by middle three kinematic pair attachment holes can obtain the connectivity scenario of three kinds of struts, adapts to different tube diameters; Baffle plate is used for limiting the scope that the back sleeve slides, and strut just can adapt to the different tube diameters in the certain limit like this, thereby makes camera occupy the pipeline center place all the time.

The present invention is when regulating the connectivity scenario of strut, and this device is applicable works in the pipeline of big caliber scope, and installation and removal quickly and easily, and convenient and reliable operation is easy to change impaired parts, and centering is effective, has improved the video camera effect.

Description of drawings

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.

Fig. 1 is that video detects camera centralizer schematic three dimensional views;

Fig. 2 is centralizer mechanism kinematic schematic representation;

Fig. 3 is strut connection scheme schematic representation.

Among Fig. 1: 1. central tube; 2. screw; 3. camera; 4. front sleeve; 5.1,5.2,5.3 pins; 6. snap ring; 7. wheel; 8. spring; 9. screw; 10. sleeve after; 11. block plate; 12. gimbal coupling; 13. screens bolt; 14. internal overarm support; 15. outer strut.

Among Fig. 2: 1. central tube; 3. camera; 4. front sleeve; 7. wheel; 8. spring; 10. sleeve after; 11. block plate; 12. gimbal coupling.

Among Fig. 3: 3. camera; 8. spring; 14. internal overarm support; 15. outer strut.

Embodiment

As shown in Figure 1, 2, the present invention mainly is made up of several parts such as central tube 1, front sleeve 4, back sleeve 10, spring 8, internal overarm support 14, outer strut 15 and block plates 11.Central tube 1 front end has three screw thread positioning holes, utilizes three screws 2 to regulate fixing camera 3, in order to adjust to best camera position; Central tube 1 length is longer than the length of camera 3, in order to load; Central tube 1 rear end has circumference spill draw-in groove, and block plate 11 is stuck in the spill draw-in groove by screens bolt 13, and can rotate around central tube 1 circumference.Front sleeve 4 and back sleeve 10 are installed on the central tube 1, and front sleeve 4 is installed in central tube 1 front portion and is fixed on the central tube 1 by screw 2, and back sleeve peace 10 is contained on the central tube 1, but axially can slide; Supporting part by three groups of internal overarm supports 14 and outer strut, wheel 7, pin 5.1,5.2,5.3 and relevant snap ring 6 form, outer strut 15 is connected on the front sleeve 4 by snap ring 6 and pin 5.1, internal overarm support 14 is connected on the sleeve 10 of back by snap ring 6 and pin 5.3, and internal overarm support 14 is by snap ring 6 and pin 5.2 and outer strut 15 interconnections; Spring 8 is fixed in outer strut 15 and internal overarm support 14 internal voids by screw 9, and like this by the stretching of spring 8, slide in the front and back that drive back sleeve 10, thereby drive internal overarm support 14 and outer strut 15 strut and shrink, in order to adapt to different calibers; Block plate 11 is stuck on central tube 1 Baltimore groove, is used for the sliding scale of restriction back sleeve 10; Having U-shaped breach on the block plate 11 simultaneously, mainly is that the convenience of considering the datawire of camera 3 is passed through; Gimbal coupling 12 front threads are connected with block plate 11, then this device are linked together with the relevant pushing device of advancing, and use gimbal coupling to be convenient to adapt to bend.

As shown in Figure 2, correlated parts such as internal overarm support 14 of the present invention, outer strut 15 all are into three group of 120 degree circle distribution, and design is not only simple in structure like this, and ease of assembly is dismantled, and is conducive to the stability of entire mechanism.

As shown in Figure 3, on internal overarm support 14 and outer strut 15, leave three respectively and can regulate attachment hole, by the interconnection of three the adjustment hole diverse locations in centre, supporting part can have a, b, three kinds of assembling schemes of c; By screw 9 spring 8 is connected internal overarm support 14 and outer strut 15, the connection of the adjustment hole by diverse location and the spring 8 of different length, can obtain three kinds of different support mount schemes, can conveniently regulate this like this and install to adapt in the caliber scope of bigger variation and work.

Claims

1. one kind is mainly used in managing the camera automatic centring device that interior video detects, and it is characterized in that: this kind automatic centring device mainly is made up of several parts such as central tube 1, front sleeve 4, back sleeve 10, spring 8, internal overarm support 14, outer strut 15 and block plate 11, gimbal couplings 12.

2. according to claim 1 it is characterized in that: central tube 1 front end has three tapped holes, fixes camera 3 by screw 2 for managing the camera automatic centring device that interior video detects, in order to adjust to best shooting central position; Central tube 1 length is longer than the length of camera 3, in order to assemble; Central tube 1 rear end has the circumference Baltimore groove, and block plate 11 is stuck in the Baltimore groove by screens bolt 13, and can rotate around central tube 1 circumference.Front sleeve 4 and back sleeve 10 are installed on the central tube 1, and it is anterior and fixing by screw 2 that front sleeve 4 is installed in central tube 1, and back sleeve peace 10 is contained on the central tube 1, axially can slide.

3. according to claim 1 for managing the camera automatic centring device that interior video detects, it is characterized in that: supporting part by internal overarm support 14, outer strut 15, wheel 7, pin 5.1,5.2,5.3 and relevant snap ring 6 form, outer strut 15 is connected on the front sleeve 4 by snap ring 6 and pin 5.1, internal overarm support 14 is connected on the sleeve 10 of back by snap ring 6 and pin 5.3, and internal overarm support 14 is by snap ring 6 and pin 5.2 and outer strut 15 interconnections; Spring 8 is fixed in outer strut 15 and internal overarm support 14 internal voids by screw 9, and like this by the stretching of spring 8, slide in the front and back that drive back sleeve 10, thereby drive internal overarm support 14 and outer strut 15 strut and shrink, in order to adapt to different calibers.Correlated parts such as internal overarm support 14, outer strut 15 are formed three group of 120 degree circle distribution, internal overarm support 14 and outside on the strut 15, leave three respectively and regulate attachment hole, by middle three connections of regulating the attachment hole diverse location, a, b, three kinds of assembling schemes of c can be arranged, by connecting the spring 8 of different length, adapt in the caliber of bigger variation with this and work again.