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Towing pin locking device

A locking device and traction pin technology, applied in traction connectors, transportation and packaging, vehicle parts, etc., can solve the problems of low production efficiency and high cost of locking round tubes, and achieve firm locking, low cost, and material utilization. high rate effect

Active Publication Date: 2016-08-17
LIUZHOU LIUGONG FORKELEVATOR +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a traction pin locking device to solve the problems of low production efficiency and high cost of existing locking round tubes

Method used

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  • Towing pin locking device
  • Towing pin locking device
  • Towing pin locking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 2 The traction pin locking device shown includes a locking member fixed on the traction base 1. The traction base 1 has a fixed plate and three ear plates welded on the fixed plate at intervals and provided with connection holes. The part is welded on the upper lug plate, the lug plate of the traction seat 1 is inserted with the traction pin 2 passing through the middle of the locking piece, the traction pin 2 is equipped with the detent 3, and the detent 3 protrudes outward from the outer wall of the traction pin 2 The locking part has an open slot 4 that engages with the bayonet pin 3, the open slot 4 has a guide part and an anti-retraction part, the guide part is arranged along the insertion direction of the traction pin 2, and one end of the guide part extends to the top of the lock part. The edge forms an opening, and the other end is bent and extended in the horizontal direction to form an anti-retreat part, and the end of the anti-retreat part is ...

Embodiment 2

[0024] Such as image 3 The difference between the illustrated embodiment of the present invention and Embodiment 1 is that the locking member has two plates 5, and the two plates 5 are two straight plates oppositely arranged on both sides of the traction pin 2, and each straight plate has a An opening groove 4 is provided, and the opening grooves 4 on the two boards 5 are arranged horizontally and oppositely to each other.

[0025] All the other features are the same as in Example 1.

Embodiment 3

[0027] Such as Figure 4 The difference between the illustrated embodiment of the present invention and Embodiment 1 is that the locking member has two plate bodies 5, and the two plate bodies 5 are two bent plates relatively arranged on both sides of the traction pin 2, each bent plate Each plate is provided with an opening groove 4, and the opening grooves 4 on the two plate bodies 5 are arranged horizontally and oppositely to each other.

[0028] All the other features are the same as in Example 1.

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PUM

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Abstract

The invention discloses a traction pin locking device, which relates to the technical field of traction devices, comprising a locking piece fixed on a traction seat, a traction pin interspersed with the traction pin, and an outwardly protruding bayonet provided on the outer wall of the traction pin , the locking piece has an open slot that engages with the bayonet pin, the open slot has a guiding portion and an anti-retraction portion, the guiding portion is arranged along the insertion direction of the traction pin, one end of the guiding portion extends to the upper edge of the locking piece to form an opening, and the other One end is bent and extended in the horizontal direction to form an anti-retreat part, and the end of the anti-retreat part is bent and extended downward to form a locking part; the locking part is composed of at least one upright plate body, and the plate body has at least one open groove. Compared with the prior art, the locking part of the traction pin locking device of the present invention is made of a plate body, and the opening groove is processed on the plate body. The opening groove can be processed by stamping, cutting or other methods, and the production efficiency is high and the cost is low. Low; high material utilization rate, saving raw materials.

Description

technical field [0001] The invention relates to the technical field of traction devices, in particular to a locking device for a traction pin used for connecting a trailer to a tractor. Background technique [0002] The towing pin is an important component that connects the trailer and the tractor and bears the traction force, and ensures that the trailer and the tractor can be hooked up reliably and smoothly, and can be unhooked conveniently and quickly. The current traction pin locking device such as figure 1 As shown, it includes a locking tube 105 fixed on the traction seat 101, the traction seat 101 is inserted with a traction pin 102 passing through the middle of the locking tube 105, and the traction pin 102 passes through the bayonet pin 103 It is connected with the locking round tube 105; the two sides of the locking round tube 105 are provided with an opening groove 104 that engages with the bayonet pin 103, and the opening groove 104 has a guiding part and a retr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60D1/28
Inventor 李伟隆彩云周小毛韦文琴
Owner LIUZHOU LIUGONG FORKELEVATOR