CN103754279A

CN103754279A - Anti-locking saddle locking mechanism

Info

Publication number: CN103754279A
Application number: CN201410048802.XA
Authority: CN
Inventors: 韩魁; 孙长春; 张付增; 郭艳玲; 高蕊; 杨永祥; 葛方舟; 梁晓明; 李海林; 陈立付; 赵文涛
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: Sinotruk Jinan Power Co Ltd; China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2014-02-12
Filing date: 2014-02-12
Publication date: 2014-04-30
Anticipated expiration: 2034-02-12
Also published as: CN103754279B

Abstract

The invention discloses an anti-locking saddle locking mechanism which comprises a lock hook, a pin block, a tension spring and a lock hook spring. The lock hook spring enabling the lock hook to rotate around a hinge pin is arranged on the lock hook. The pin block is located between the lock hook and a rear beam board. The two ends of the tension spring pulling the pin block to slide on the rear beam board are connected with the rear beam board and the pin block respectively. The wedge-shaped face of the lock hook is of a step shape. The wedge-shaped face of the pin block is of a step shape matched with the wedge-shaped face of the lock hook. The anti-locking saddle locking mechanism has the advantages that the mutually-matched surfaces of the lock hook and the pin block are respectively of a step structure, so that it is guaranteed that a certain gap is kept between the matching faces of the lock hook and the pin block, the phenomena that a traction pin is locked and is difficult to take out and hang due to the fact that the lock hook and the pin block are tightly attached to each other are avoided, an existing manual saddle lock hook and pin block gap adjusting device is omitted, the reliability and the economical efficiency of a saddle are improved, and the gap between the lock hook and the pin block can be automatically adjusted in real time and in time.

Description

Anti-lock saddle catch gear

Technical field

The present invention relates to a kind of saddle, especially a kind of anti-lock saddle catch gear.

Background technology

Saddle catch gear is the parts of fixing trailer towing pin on saddle, is followed successively by backward horseshoe mouth, latch hook, pin block, after cross member plate from saddle front portion, and wherein horseshoe mouth, after cross member plate are welded on saddle base plate, and position is fixed, and latch hook, pin block are movable part.After trailer enters to hang, towing pin is between horseshoe mouth and latch hook, and wedge shape pin block fills up the space between latch hook and after cross member plate, when after towing pin wearing and tearing, wedge shape pin block moves inwards along after cross member plate under spring tension, forces on latch hook and moves, and towing pin is tightly clipped between latch hook and horseshoe mouth.In existing saddle catch gear, latch hook and pin block fitting surface are the plane cooperatively interacting, and both fit tightly, cause the towing pin moment to be tightly clipped between latch hook and horseshoe mouth, very easily cause the wearing and tearing of towing pin, also there will be the phenomenons such as difficulty of seting out, for this reason simultaneously, in existing saddle, there is the device that regulates latch hook, pin block gap, need artificial timing to regulate, formality is loaded down with trivial details, can not implement to regulate at any time, once and regulate improperly, easily cause the phenomenons such as looseness, locking.

Summary of the invention

The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of anti-lock saddle catch gear is provided, it makes to keep certain gap between latch hook and pin block fitting surface, prevents between the two due to laminating tension, occurs towing pin locking, the phenomenons such as difficulty of seting out.

For achieving the above object, the present invention adopts following technical proposals:

A kind of anti-lock saddle catch gear, comprise latch hook, pin block, extension spring and latch hook spring, described latch hook is provided with the latch hook spring that latch hook is rotated around bearing pin, described pin block is between latch hook and after cross member plate, pull the extension spring two ends that pin block slides on after cross member plate to connect respectively after cross member plate and pin block, the lozenges of described latch hook is stepped, and the lozenges of described pin block is match with the lozenges of latch hook stepped.

Described latch hook comprises multiple steps, and the planar I of each step is vertical with planar I I, and planar I is parallel with after cross member plate.

Length that the length of the each step of described latch hook is planar I, be highly the length of planar I I.

The length of described latch hook planar I I is 0.3-0.7mm.

Described pin block comprises multiple steps, and the planar I of each step is vertical with planar I I, and planar I I is parallel with after cross member plate.

The each length of bench of described pin block is the length of plane 11, is highly the length of plane.

The planar I of described pin block and the planar I I of latch hook are isometric, the planar I I of pin block and latch hook planar I isometric.

The invention has the beneficial effects as follows: the surface that latch hook, pin block cooperatively interact all adopts ladder-type structure, between assurance latch hook and pin block fitting surface, keep certain gap, prevent between the two due to laminating tension, there is the phenomenons such as towing pin locking, dislodging difficulty, existing artificial saddle latch hook, pin block slack adjuster have been cancelled, improved reliability and the economy of saddle, and can real-time, the timely gap that automatically regulates latch hook, pin block.

Accompanying drawing explanation

Fig. 1 is the structural representation of the specific embodiment of the invention;

Fig. 2 is the structural representation of latch hook in the specific embodiment of the invention;

Fig. 3 is the structural representation of pin block in the specific embodiment of the invention.

Wherein: 1. horseshoe mouth, 2. towing pin, 3. latch hook, 4. pin block, 5. extension spring, 6. after cross member plate, 7. bearing pin, 8. latch hook spring, 9. pin block planar I, 10. latch hook planar I, 11. pin block planar I I, 12. slideways, 13. latch hook planar I I.

The specific embodiment

Below in conjunction with drawings and Examples, the present invention is further described.

A kind of anti-lock saddle catch gear, as Figure 1-3, comprise latch hook 3, pin block 4, extension spring 5 and latch hook spring 8, described latch hook 3 is provided with the latch hook spring 8 that latch hook 3 is rotated around bearing pin 7, described pin block 4 is between latch hook 3 and after cross member plate 6, pull extension spring 5 two ends that pin block 4 slides on after cross member plate 6 to connect respectively after cross member plate 6 and pin block 4, the lozenges of described latch hook 3 is stepped, and the lozenges of described pin block 4 is match with the lozenges of latch hook 3 stepped.

Described latch hook 3 comprises multiple steps, and the planar I 10 of each step is vertical with planar I I13, and planar I 10 is parallel with after cross member plate 6.

The length of described latch hook 3 each steps is the length of planar I 10, is highly the length of planar I I13.

The length of described latch hook planar I I13 is 0.3-0.7mm.

Described pin block 4 comprises multiple steps, and the planar I 9 of each step is vertical with planar I I11, and planar I I11 is parallel with after cross member plate 6.

The each length of bench of described pin block is the length of plane 11, is highly the length of plane 9.

Described pin block 4 planar I and latch hook 3 planar I I are isometric, and pin block 4 planar I I and latch hook 3 planar I are isometric.

Adopt the technical scheme in the present invention, after trailer enters to hang, by latch hook 3 fixing with saddle base plate on towing pin 2 upward movements, stop motion after contacting with horseshoe mouth 1, latch hook 3 under the pulling force of latch hook spring 8 along slideway 12 upward movements, stop motion after contacting with towing pin 2, pin block 4 moves to the right along after cross member plate 6 under the pulling force of extension spring 5, stop motion when latch hook 3 coordinates just with pin block 4 trapezium structures, now the planar I I13 of latch hook contacts with pin block planar I 9, between latch hook planar I 10 and pin block planar I I11, there is gap, the scope in gap is the height of zero to step, when after towing pin 2 wearing and tearing, latch hook 3 under the pulling force of latch hook spring 8 along slideway 12 upward movements, when existing gap to exceed the height of 1 step between latch hook planar I 10 and pin block planar I I11, pin block 4 under the pulling force of extension spring 5 along move the to the right length of a step of after cross member plate 6.

The surface that latch hook 3, pin block 4 cooperatively interact all adopts ladder-type structure, between assurance latch hook 3 and pin block 4 fitting surfaces, keep certain gap, prevent between the two due to laminating tension, there is the phenomenons such as towing pin locking, dislodging difficulty, this device has been cancelled existing artificial saddle latch hook, pin block slack adjuster, improved reliability and the economy of saddle, and can real-time, the timely gap that automatically regulates latch hook 3, pin block 4.

Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.

Claims

1. an anti-lock saddle catch gear, comprise latch hook, pin block, extension spring and latch hook spring, it is characterized in that, described latch hook is provided with the latch hook spring that latch hook is rotated around bearing pin, described pin block is between latch hook and after cross member plate, pull the extension spring two ends that pin block slides on after cross member plate to connect respectively after cross member plate and pin block, the lozenges of described latch hook is stepped, and the lozenges of described pin block is match with the lozenges of latch hook stepped.

2. anti-lock saddle catch gear as claimed in claim 1, is characterized in that, described latch hook comprises multiple steps, and the planar I of each step is vertical with planar I I, and planar I is parallel with after cross member plate.

3. anti-lock saddle catch gear as claimed in claim 2, is characterized in that, length that the length of the each step of described latch hook is planar I, is highly the length of planar I I.

4. anti-lock saddle catch gear as claimed in claim 2, is characterized in that, the length of described latch hook planar I I is 0.3-0.7mm.

5. anti-lock saddle catch gear as claimed in claim 1, is characterized in that, described pin block comprises multiple steps, and the planar I of each step is vertical with planar I I, and planar I I is parallel with after cross member plate.

6. anti-lock saddle catch gear as claimed in claim 5, is characterized in that, the each length of bench of described pin block is the length of plane 11, is highly the length of plane.

7. anti-lock saddle catch gear as claimed in claim 5, is characterized in that, the planar I of described pin block and the planar I I of latch hook are isometric, the planar I I of pin block and latch hook planar I isometric.