CN214450083U

CN214450083U - Traction pin mechanism

Info

Publication number: CN214450083U
Application number: CN202023004346.9U
Authority: CN
Inventors: 佘江寅; 姜文东; 杨德洲; 孙凯; 张玉伟
Original assignee: Anhui Heli Holdings Co ltd Tractor Branch
Current assignee: Anhui Heli Holdings Co ltd Tractor Branch
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-10-22
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a traction pin mechanism, which comprises a traction pin main body, wherein the upper end of the traction pin main body is sleeved with a base assembly, and the base assembly is sleeved with a handle assembly; the handle assembly comprises a guide sleeve and a connecting rod fixedly connected in the guide sleeve, and the lower end of the connecting rod is fixedly connected with the traction pin main body; the base assembly includes the steel pipe, the steel pipe peg graft in the uide bushing, the connecting rod peg graft in the steel pipe, towing pin main part upper end with be equipped with compression spring between the steel pipe top, the utility model discloses a base has been cup jointed in the towing pin main part to cup jointed the handle on the base, be equipped with compression spring between towing pin main part and base, and then can open the towing pin through carrying the handle, therefore the towing pin still installs on the base when taking off the round pin, and then the phenomenon that the towing pin loses can not appear, and in addition, still compresses tightly the towing pin through compression spring's pretightning force, takes off the round pin when preventing to jolt.

Description

Traction pin mechanism

Technical Field

The utility model relates to a pulling equipment technical field specifically is a towing pin mechanism.

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.

The traction pin needs to be frequently detached and hung in the using process, and when the pin is detached, the traction pin is pulled out of the traction seat and then is either held by hand or placed beside a vehicle, and sometimes the traction pin can not be found when the traction pin is placed at any time; meanwhile, due to the jolt of the road surface, the towing pin often has the phenomenon of accidental pin release.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a towing pin mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a traction pin mechanism comprises a traction pin main body, wherein the upper end of the traction pin main body is sleeved with a base assembly, and a handle assembly is sleeved on the base assembly;

the handle assembly comprises a guide sleeve and a connecting rod fixedly connected in the guide sleeve, and the lower end of the connecting rod is fixedly connected with the traction pin main body;

the base assembly comprises a steel pipe, the steel pipe is inserted into the guide sleeve, the connecting rod is inserted into the steel pipe, and a compression spring is arranged between the upper end of the traction pin main body and the top end of the steel pipe.

As a further aspect of the present invention: the guide sleeve top fixedly connected with first upper cover plate, the one end fixedly connected with of guide sleeve is kept away from to first upper cover plate draws the pin ring.

As a further aspect of the present invention: the guide sleeve side wall is provided with a guide groove which is axially arranged along the guide sleeve, the upper end of the guide groove is provided with a limit groove, and the lower end of the limit groove is communicated with the top end of the guide groove through a transition groove which horizontally extends.

As a further aspect of the present invention: the steel pipe lateral wall fixedly connected with round steel, the round steel with guide way, spacing groove sliding connection.

As a further aspect of the present invention: the lower end of the connecting rod is provided with a connecting screw rod, the top end of the traction pin main body is provided with a connecting threaded hole, and the connecting screw rod is inserted into the connecting threaded hole.

As a further aspect of the present invention: the steel pipe top fixedly connected with second upper cover plate, compression spring upper end joint in second upper cover plate lower extreme.

As a further aspect of the present invention: the compression spring is sleeved on the connecting rod, a limiting protrusion is arranged at one end, close to the connecting rod, of the traction pin main body, and the lower end of the compression spring is located at the upper end of the limiting protrusion.

As a further aspect of the present invention: the bottom end of the steel pipe is fixedly connected with the bottom plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a base has been cup jointed in the towing pin main part to cup jointed the handle on the base, be equipped with compression spring between towing pin main part and base, and then can open the towing pin through carrying the handle, therefore the towing pin still installs on the base when taking off the round pin, and then the phenomenon that the towing pin lost can not appear, in addition, still compresses tightly the towing pin through compression spring's pretightning force, and it is the round pin that takes off to prevent to jolt.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a sectional view of this embodiment A-A;

FIG. 3 is a schematic view of the handle structure of the present embodiment;

fig. 4 is a schematic view of the base structure of the present embodiment.

In the figure: 1-a handle assembly, 2-a compression spring, 3-a base assembly, 4-a traction pin main body, 5-a traction pin ring, 6-a first upper cover plate, 7-a connecting rod, 8-a guide sleeve, 9-a second upper cover plate, 10-round steel, 11-a steel pipe, 12-a bottom plate, 13-a connecting threaded hole, 14-a connecting screw rod, 15-a guide groove and 16-a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in an embodiment of the present invention, a towing pin mechanism includes a towing pin body 4, a base assembly 3 is sleeved on an upper end of the towing pin body 4, and a handle assembly 1 is sleeved on the base assembly 3.

Handle assembly 1 includes uide bushing 8 and connecting rod 7 of fixed connection in

uide bushing

8, 7 lower extremes of connecting rod and 4 fixed connection of towing pin main part, 7 lower extremes of connecting rod are equipped with connecting screw 14, 4 tops of towing pin main part are equipped with connecting screw hole 13, connecting screw 14 pegs graft in connecting screw hole 13, the first upper cover plate 6 of 8 top fixedly connected with of uide bushing, the one end fixedly connected with towing pin ring 5 of uide bushing 8 is kept away from to first

upper cover plate

6, 8 lateral walls of uide bushing are equipped with along the guide way 15 of 8 axial arrangements of uide bushing, 15 upper ends of guide way are equipped with

spacing groove

16, 16 lower extremes of spacing groove pass through aqueduct and 15 top intercommunications of guide way of level extension.

Base assembly 3 includes

steel pipe

11, 11 bottom fixed connection bottom plates 12 of steel pipe, and then be connected the towing pin device of this embodiment with the tractor through bottom plate 12, steel pipe 11 is pegged graft in

uide bushing

8, 11 lateral wall fixedly connected with round steel 10 of steel pipe, round steel 10 and guide way 15, spacing groove 16 sliding connection, along with steel pipe 11 up-and-down motion in uide bushing 8 promptly, round steel 10 is at guide way 15, slide in

spacing groove

16, 11 top fixedly connected with second upper cover plate 9 of steel pipe, connecting rod 7 is pegged graft in steel pipe 11, be equipped with compression spring 2 between 4 upper ends of towing pin main part and the 11 tops of steel pipe, 2 upper end joint of compression spring is in 9 lower extremes of second upper cover plate, compression spring 2 cup joints on connecting rod 7, the one end that towing pin main part 4 is close to connecting rod 7 is equipped with spacing protruding, the 2 lower extreme of compression spring is located spacing protruding upper end.

The utility model discloses when using, as shown in fig. 1, handle assembly 1 removes to the direction that is close to steel pipe 11 this moment, and release towing pin main part 4 from steel pipe 11 through connecting rod 7, through round steel 10 joint in spacing groove 16, make whole towing pin device become stable state, compression spring is in compression state under this state, form the pretightning force, the pretightning force is used in towing pin main part 4, transmit round steel 10 through connecting rod 7 on, make round steel 10 produce the trend of upward movement and push up tightly on spacing groove 16's top, realize the auto-lock, if the road surface jolts, towing pin main part 4 receives ascending power, can drive handle assembly 1 upward movement, thereby round steel 10 can be touch to the lower edge of spacing groove on the uide bushing 8, realize self-locking function. If wanting to take off the round pin operation, the operator need first lift handle assembly 1 upwards, then rotate to guide way 15 department along the notch of uide bushing 8, just can continue to lift upwards and draw handle assembly 1, when mentioning the upper limb that 8 lower edges of uide bushing surpass round steel 10, clockwise (or anticlockwise) rotation, let the lower edge of uide bushing 8 fall on round steel 10, then loose hand (because this moment, compression spring 2's compression volume is very big, the spring force passes through connecting rod 7 and transmits to round steel 10 on, form a steady state) and can. The whole process of the pin hanging operation is just opposite.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A towing pin mechanism comprises a towing pin main body (4), and is characterized in that the upper end of the towing pin main body (4) is sleeved with a base assembly (3), and a handle assembly (1) is sleeved on the base assembly (3);

the handle assembly (1) comprises a guide sleeve (8) and a connecting rod (7) fixedly connected in the guide sleeve (8), and the lower end of the connecting rod (7) is fixedly connected with the traction pin main body (4);

the base assembly (3) comprises a steel pipe (11), the steel pipe (11) is inserted into the guide sleeve (8), the connecting rod (7) is inserted into the steel pipe (11), and a compression spring (2) is arranged between the upper end of the traction pin main body (4) and the top end of the steel pipe (11).

2. A kingpin mechanism according to claim 1, wherein a first upper cover plate (6) is fixedly attached to the top end of the guide sleeve (8), and a kingpin ring (5) is fixedly attached to the end of the first upper cover plate (6) remote from the guide sleeve (8).

3. A kingpin mechanism according to claim 1, wherein the guide sleeve (8) is provided with a guide groove (15) in the side wall thereof, the guide groove (8) being axially arranged, the guide groove (15) being provided at an upper end thereof with a limit groove (16), the limit groove (16) being provided at a lower end thereof in communication with a top end of the guide groove (15) via a horizontally extending transition groove.

4. The towing pin mechanism according to claim 3, wherein a round steel (10) is fixedly connected to the side wall of the steel pipe (11), and the round steel (10) is slidably connected with the guide groove (15) and the limiting groove (16).

5. The towing pin mechanism according to claim 1, wherein the lower end of the connecting rod (7) is provided with a connecting screw rod (14), the top end of the towing pin body (4) is provided with a connecting threaded hole (13), and the connecting screw rod (14) is inserted into the connecting threaded hole (13).

6. The towing pin mechanism according to claim 1, wherein a second upper cover plate (9) is fixedly connected to the top end of the steel tube (11), and the upper end of the compression spring (2) is clamped to the lower end of the second upper cover plate (9).

7. The towing pin mechanism according to claim 1, wherein the compression spring (2) is sleeved on the connecting rod (7), a limiting protrusion is arranged at one end of the towing pin body (4) close to the connecting rod (7), and the lower end of the compression spring (2) is located at the upper end of the limiting protrusion.

8. A kingpin mechanism according to claim 1, wherein the bottom end of the steel tube (11) is fixedly connected to the base plate (12).