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Pull-cord switch with manual self-locking action mechanism

A technology of self-locking action and pull rope switch, which is applied in the direction of electric switches, electrical components, circuits, etc., which can solve the problems of inconvenient discovery and finding of faults, poor waterproof performance, and complex structure, so as to facilitate the detection and finding of faults and prevent rainwater The effect of entering and improving the protection level

Active Publication Date: 2014-04-23
沈阳中煤工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Analysis of the above structure shows that the pull ring and the manual self-locking mechanism of this mechanism are in the direction perpendicular to each other, not only the structure is complex, but also the operation is complicated. When the transportation site needs to stop in an emergency, it is necessary to operate the manual self-locking mechanism while pulling the pull ring , therefore, it can only be operated at the switch position, and cannot be operated at any position, nor can it be stopped in time at any position
[0003] In addition, in the prior art, the pull cord switch is installed with a cable joint on the side of the housing, which is easily immersed by rainwater in the field during use, and the waterproof performance is poor, and the front cover installed on the housing of the pull cord switch in the prior art is blind. cover, it is not convenient to find and find faults in time on site

Method used

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  • Pull-cord switch with manual self-locking action mechanism
  • Pull-cord switch with manual self-locking action mechanism
  • Pull-cord switch with manual self-locking action mechanism

Examples

Experimental program
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specific Embodiment approach 1

[0048]As shown in the drawings, the present invention includes a housing 15, the bottom surface of the housing 15 is processed with 4 cable interfaces 15-5 for installing cable joints, and the main shaft is processed on the housing walls on the left and right sides of the housing 1. Hole 15-1, the housing wall at the left and right sides of the housing 15 is processed with the main shaft hole 15-1, which is a thickened housing wall, on which a second vertical shaft hole 15-1 is processed. Positioning pin hole 15-2, the lower half of the second positioning pin hole 15-2 is a light hole, the upper half is a threaded hole, and a travel switch support 15-3 for installing a travel switch is also provided in the housing 15 And the circuit board support 15-4 for installing the circuit board, the manual self-locking action mechanism is installed symmetrically on the left and right sides of the housing 15, and the manual self-locking action mechanism includes the main shaft 13 passing t...

specific Embodiment approach 2

[0050] Same as Embodiment 1, the difference is that a manual self-locking action mechanism is installed on the right or left side of the housing 15, and a blind plate seal is installed on the other side, which is suitable for single-side use.

[0051] In the above specific embodiment, the right-angled side of the right-angled trapezoidal groove 13-1 can also be processed into a hypotenuse to form a V-shaped flat-bottomed groove; or the L-shaped positioning groove 13-2 can be processed into a T-shaped positioning groove. , are all within the protection scope of the present invention.

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Abstract

The invention relates to a pull-cord switch with a manual self-locking action mechanism. The pull-cord switch with the manual self-locking action mechanism is used for overcoming the problems of the existing pull-cord switches that operation can be carried out only at a switch position and cannot be carried out at optional positions and closedown cannot be carried out timely at optional positions. The pull-cord switch is characterized in that the manual self-locking action mechanism is mounted on a shell body, a right-angle trapezoidal groove, an L-shaped locating groove, a first locating pin hole, an annular sealing groove, a rectangular flat face and a thin shaft segment which is provided with threads are formed in a main shaft of the manual self-locking action mechanism, a main shaft sealing pad sleeve and a support arm are mounted on the main shaft, the big end of the support arm is fixedly connected with the shell body, a sliding block fixedly connected with the main shaft is mounted in the support arm, a torsion spring is mounted on the main shaft, a locating cylindrical pin which is used for carrying out axial-moving locating and radial-turning locating on the L-shaped locating groove is mounted on the shell body, a transparent viewing window is mounted on a front cover, and a cable connector is mounted on the bottom face of the shell body. The pull-cord switch with the manual self-locking action mechanism has the beneficial effects that the optional-position operation and optional-position timely closedown are realized, and faults can be timely found and searched for conveniently on site.

Description

technical field [0001] The invention belongs to the technical field of pull cord switches, in particular to a pull cord switch with a manual self-locking action mechanism. Background technique [0002] The pull rope switch in the prior art generally returns to the initial position automatically after the switch action of the micro switch. There is no self-locking mechanism, which may cause the device to be restarted with a fault. harm. In order to solve this problem, the utility model patent with the application number 201220434173.0 discloses a pull cord switch with a manual self-locking structure. Manual pin and manual cover, the positioning piece is fixedly connected with the pull rod, the positioning piece is provided with a limiting part on its outer peripheral side, the manual pin is provided with a stopping part, and a self-locking spring is provided between the stopping part and the inner wall on the right side of the manual seat , the self-locking spring is put th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H17/04H01H17/06
Inventor 彭程邓宏儒于丰白忠奇
Owner 沈阳中煤工程技术有限公司