CN216942554U

CN216942554U - Dual draw gear who prevents towing pin and drop

Info

Publication number: CN216942554U
Application number: CN202220287411.3U
Authority: CN
Inventors: 樊官伦; 伍泽军; 石鹏
Original assignee: Sichuan Fujun Automobile Manufacturing Co ltd
Current assignee: Sichuan Fujun Automobile Manufacturing Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-07-12
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a traction device for preventing a traction pin from falling off doubly, and belongs to the technical field of traction devices. The utility model provides a dual draw gear who prevents towing pin and drop, includes first mount and second mount, still includes: the two first rotating seats are symmetrically arranged and are fixedly connected to the first fixing frame; the second rotating seat is arranged between the two first rotating seats, the second rotating seat is fixedly connected to the second fixing frame, and the side walls of the two first rotating seats and the side wall of the second rotating seat are provided with jacks; the traction pin penetrates through the jack and is sleeved in the jack, wherein one end of the traction pin is fixedly connected with a limiting plate, the outer wall of the other end of the traction pin is in threaded connection with a limiting ring, and the limiting ring is provided with an anti-falling assembly matched with the traction pin; the utility model can effectively prevent the traction pin from loosening and falling off through the double anti-loosening assembly.

Description

Dual draw gear who prevents towing pin and drop

Technical Field

The utility model relates to the technical field of traction devices, in particular to a traction device capable of preventing a traction pin from falling off doubly.

Background

The towing pin mechanism is a connecting device for connecting the towing vehicle and the towed vehicle or the towed cargo, and the towing vehicle transmits the towing force to the towed vehicle or the towed cargo through the towing pin.

Among the prior art, the towing pin on the draw gear is generally spacing through terminal elasticity bolt, uses a period back when draw gear, and frequent vibrations lead to elasticity bolt and towing pin to appear becoming flexible or even droing easily, has very high potential safety hazard to in case appear becoming flexible, the vibrations of towing pin can be more violent, thereby can cause serious wearing and tearing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that a traction pin on a traction device is easy to loosen and fall off in the prior art, and provides a traction device capable of preventing the traction pin from falling off doubly.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a dual draw gear who prevents towing pin and drop, includes first mount and second mount, still includes: the two first rotating seats are symmetrically arranged and are fixedly connected to the first fixing frame; the second rotating seat is arranged between the two first rotating seats, the second rotating seat is fixedly connected to the second fixing frame, and the side walls of the two first rotating seats and the side wall of the second rotating seat are provided with jacks; the traction pin penetrates through the sleeve and is arranged in the jack, wherein one end of the traction pin is fixedly connected with a limiting plate, the outer wall of the other end of the traction pin is in threaded connection with a limiting ring, and an anti-falling assembly matched with the traction pin is arranged on the limiting ring.

In order to prevent that the towing pin is not hard up and drops because of vibrations, preferably, anticreep subassembly is including setting up the slide opening at the spacing ring inner wall, sliding connection has the locating lever in the slide opening, the outer wall of towing pin be equipped with locating lever complex locating hole, through elastic component elastic connection between the inner wall of locating lever and slide opening, fixedly connected with extends to the pull rod of spacing ring outer wall on the locating lever.

In order to promote the effect of towing pin anticreep, furtherly, the mount pad that two symmetries of fixedly connected with set up on the first mount all is connected with the gag lever post, two through the pivot rotation on two mount pads the lateral wall of gag lever post all supports on the outer wall elastic connection of limiting plate and spacing ring respectively through the torsional spring with the outer wall elastic connection of first mount, two.

In order to make the pulling of the pull rod more labor-saving and convenient, further, the tail end of the pull rod is fixedly provided with a pull ring.

In order to make the spacing ring atress more even for two sets of anticreep subassemblies, furtherly, be equipped with the anticreep subassembly of two sets of symmetry settings on the spacing ring.

In order to ensure the elastic abutting force of the positioning rod, further, the elastic piece is a spring.

In order to fix the first fixing frame and the second fixing frame to the device conveniently, preferably, the first fixing frame and the second fixing frame are both provided with threaded holes.

In order to save more labor when the limiting ring is rotated, furthermore, the end surface of the limiting plate is circular, and the outer wall of the circumference of the limiting plate is provided with anti-skid lines.

In order to enable the positioning rod to be more conveniently inserted into the positioning hole, furthermore, a chamfer is arranged at one end of the positioning rod, which is positioned in the positioning hole.

In order to enable the positioning rod to be inserted into the positioning hole more accurately, a reference line parallel to the positioning hole is further arranged at the shaft end of the traction pin.

Compared with the prior art, the utility model provides a traction device for preventing a traction pin from falling off doubly, which has the following beneficial effects:

1. according to the traction device for preventing the traction pin from falling off doubly, the positioning rod is elastically propped in the positioning hole through the elastic piece, so that the limiting ring is prevented from loosening due to autorotation when being vibrated, and the anti-loosening and anti-falling effects of the traction pin can be improved;

2. this dual draw gear who prevents towing pin and drop can keep off the both sides at limiting plate and spacing ring all the time under the effect of torsional spring through two gag lever posts to make the towing pin can't carry out the slip of left right direction, further promotion to the locking and the anticreep effect of towing pin.

Drawings

FIG. 1 is a schematic axial view of a dual towing apparatus for preventing a towing pin from falling off according to the present invention;

FIG. 2 is a schematic top sectional view of a dual traction pin falling prevention traction device according to the present invention;

FIG. 3 is a schematic structural view at A in FIG. 2 of a dual towing attachment for preventing a tow pin from falling off according to the present invention;

fig. 4 is a schematic structural diagram of a traction device for preventing a traction pin from falling off doubly according to the present invention at B in fig. 1.

In the figure: 1. a first fixing frame; 2. a second fixing frame; 3. a first rotating base; 4. a second rotating base; 5. a jack; 6. a tow pin; 7. a limiting plate; 8. a limiting ring; 9. a slide hole; 10. positioning a rod; 11. positioning holes; 12. a pull rod; 13. a pull ring; 14. a mounting base; 15. a limiting rod; 16. a torsion spring; 17. a rotating shaft; 18. a threaded hole; 19. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-4, a dual traction device for preventing a traction pin from falling off includes a first fixing frame 1 and a second fixing frame 2, and further includes: the two first rotating seats 3 which are symmetrically arranged are fixedly connected to the first fixing frame 1; the second rotating seat 4 is arranged between the two first rotating seats 3, wherein the second rotating seat 4 is fixedly connected to the second fixing frame 2, and the side walls of the two first rotating seats 3 and the second rotating seat 4 are provided with inserting holes 5; towing pin 6, it establishes in jack 5 to run through the cover, wherein, the one end fixedly connected with limiting plate 7 of towing pin 6, the other end outer wall threaded connection of towing pin 6 has spacing ring 8, first mount 1 is fixed respectively on initiative traction equipment with on the traction equipment passively with second mount 2, first seat 3 that rotate rotates is connected with second rotation seat 4 through towing pin 6, limiting plate 7 and spacing ring 8 can effectively restrict the home range of towing pin 6, prevent that not hard up obscission from appearing in towing pin 6.

Be equipped with on the spacing ring 8 with 6 complex anticreep subassemblies of towing pin, the anticreep subassembly is including setting up the slide opening 9 at the 8 inner walls of spacing ring, sliding connection has locating lever 10 in the slide opening 9, the outer wall of towing pin 6 is equipped with locating lever 10 complex locating hole 11, through 19 elastic connection of elastic component between the inner wall of locating lever 10 and slide opening 9, fixedly connected with extends to the pull rod 12 of the 8 outer walls of spacing ring on the locating lever 10, elastic component 19 is the spring, locating lever 10 can be tightly in locating hole 11 in elastic component 19's effect elasticity top down, thereby prevent that rotation and not hard up appear when receiving vibrations in spacing ring 8, can promote the locking and the anticreep effect of towing pin 6.

The mount pad 14 that two symmetries of fixedly connected with set up on first mount 1, all rotate through pivot 17 on two mount pads 14 and be connected with gag lever post 15, the lateral wall of two gag lever posts 15 all passes through torsional spring 16 and the outer wall elastic connection of first mount 1, two gag lever posts 15 support respectively on limiting plate 7 and spacing ring 8's outer wall, two gag lever posts 15 can keep off the both sides at limiting plate 7 and spacing ring 8 all the time under torsional spring 16's effect, thereby make the unable slip of left right direction of carrying on of towing pin 6, further promotion to the locking and the anticreep effect of towing pin 6.

The tail end of the pull rod 12 is fixedly provided with a pull ring 13, and the pull ring 13 enables the pull rod 12 to be pulled more conveniently and more laborsavingly.

Be equipped with the anticreep subassembly that two sets of symmetries set up on the spacing ring 8, two sets of anticreep subassemblies can make 8 atress of spacing ring more even.

Threaded holes 18 are formed in the first fixing frame 1 and the second fixing frame 2, so that the first fixing frame 1 and the second fixing frame 2 can be conveniently fixed to equipment.

The end face of the limiting plate 7 is circular, the outer wall of the circumference of the limiting plate 7 is provided with anti-skidding lines, and when the limiting ring 8 rotates, the anti-skidding lines on the limiting plate 7 can save more labor in operation.

The end of the positioning rod 10 located in the positioning hole 11 is provided with a chamfer, so that the positioning rod 10 can be more conveniently inserted into the positioning hole 11.

The shaft end of the traction pin 6 is provided with a reference line parallel to the positioning hole 11, so that the positioning rod 10 is inserted into the positioning hole 11 more accurately.

The working principle is as follows: in the utility model, a first fixing frame 1 and a second fixing frame 2 are respectively fixed on an active traction device and a passive traction device, a first rotating seat 3 is connected with a second rotating seat 4 through a traction pin 6, a limiting plate 7 and a limiting ring 8 can effectively limit the moving range of the traction pin 6 and prevent the traction pin 6 from loosening and falling off, a positioning rod 10 can be elastically propped in a positioning hole 11 under the action of an elastic piece 19, so that the limiting ring 8 is prevented from rotating and loosening when vibrated, the anti-loosening and anti-falling effects of the traction pin 6 can be improved, two limiting rods 15 can be always blocked at two sides of the limiting plate 7 and the limiting ring 8 under the action of a torsion spring 16, the traction pin 6 can not slide in the left-right direction, the anti-loosening and anti-falling effects on the traction pin 6 are further improved, when the traction pin 6 needs to be disassembled and replaced, the limiting rods 15 are rotated by 90 degrees through a rotating shaft 17, then pulling two pull rods 12 to enable the two positioning rods 10 to slide out of the two positioning holes 11, then unscrewing the limiting ring 8 from one end of the traction pin 6, and then pulling out the traction pin 6 from the jack 5 to finish the disassembly of the traction pin 6.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a dual draw gear who prevents towing pin and drop, includes first mount (1) and second mount (2), its characterized in that still includes:

the two first rotating seats (3) are symmetrically arranged and are fixedly connected to the first fixing frame (1);

a second rotating seat (4) arranged between the two first rotating seats (3),

the second rotating seats (4) are fixedly connected to the second fixing frame (2), and insertion holes (5) are formed in the side walls of the two first rotating seats (3) and the second rotating seats (4);

a traction pin (6) which is sleeved in the jack (5) in a penetrating way,

the anti-falling device is characterized in that one end of the traction pin (6) is fixedly connected with a limiting plate (7), the outer wall of the other end of the traction pin (6) is in threaded connection with a limiting ring (8), and an anti-falling component matched with the traction pin (6) is arranged on the limiting ring (8).

2. The traction device for preventing the traction pin from falling off doubly according to claim 1, wherein the anti-falling-off component comprises a sliding hole (9) formed in the inner wall of the limit ring (8), a positioning rod (10) is connected in the sliding hole (9) in a sliding manner, a positioning hole (11) matched with the positioning rod (10) is formed in the outer wall of the traction pin (6), the positioning rod (10) is elastically connected with the inner wall of the sliding hole (9) through an elastic piece (19), and a pull rod (12) extending to the outer wall of the limit ring (8) is fixedly connected to the positioning rod (10).

3. The traction device for preventing the traction pin from falling off doubly according to claim 2, wherein the first fixing frame (1) is fixedly connected with two symmetrically arranged mounting seats (14), the two mounting seats (14) are rotatably connected with limiting rods (15) through rotating shafts (17), the side walls of the two limiting rods (15) are elastically connected with the outer wall of the first fixing frame (1) through torsion springs (16), and the two limiting rods (15) respectively abut against the outer walls of the limiting plate (7) and the limiting ring (8).

4. A double towing attachment against pin dropout according to claim 2 wherein the end of the drawbar (12) is fixedly mounted with a ring tab (13).

5. The traction device for preventing the traction pin from falling off doubly according to claim 2, wherein the limiting ring (8) is provided with two sets of symmetrically arranged anti-falling components.

6. A double anti-pin-dropout traction device according to claim 2, wherein said resilient member (19) is a spring.

7. The traction device for preventing the traction pin from falling off doubly according to claim 1, wherein the first fixing frame (1) and the second fixing frame (2) are both provided with threaded holes (18).

8. The traction device for preventing the traction pin from falling off doubly according to claim 2, wherein the end face of the limit plate (7) is circular, and the outer circumferential wall of the limit plate (7) is provided with anti-slip lines.

9. The traction device for preventing the traction pin from falling off doubly according to claim 2, wherein one end of the positioning rod (10) positioned in the positioning hole (11) is provided with a chamfer.

10. A double drag pin drop prevention drag device as claimed in claim 2, wherein the axial ends of the drag pin (6) are provided with reference lines parallel to the locating holes (11).