阅读说明：本技术 一种拖钩 (Towing hook ) 是由 陈瑞龙 于 2020-04-24 设计创作，主要内容包括：一种拖钩,涉及汽车零件领域,包括连接杆、轴头和拖球,所述连接杆为直杆,所述轴头和所述拖球分别位于所述连接杆的两端,在所述连接杆的中部有贯穿所述连接杆的插销孔,在汽车需要牵引时连接两车,使得拖钩更加便携。(The utility model provides a tow hook, relates to the auto parts field, including connecting rod, spindle nose and tow ball, the connecting rod is the straight-bar, the spindle nose with the tow ball is located respectively the both ends of connecting rod the middle part of connecting rod has the bolt hole that runs through the connecting rod connects two cars when the car needs to pull for the tow hook is more portable.)

1. The towing hook is characterized by comprising a connecting rod (1), a shaft head (2) and a towing ball (3), wherein the connecting rod (1) is a straight rod, the shaft head (2) and the towing ball (3) are respectively located at two ends of the connecting rod (1), and a bolt hole penetrating through the connecting rod (1) is formed in the middle of the connecting rod (1).

2. A towing hook according to claim 1, characterized in that the connecting rod (1) connects the stub shaft (2) and the towing ball (3) respectively by means of a curved connecting rod (1) extending bent upwards.

3. A tow hook according to claim 2, characterised in that the stub shaft (2) is a vertically disposed circular truncated cone.

4. A tow hook according to claim 3, c h a r a c t e r i z e d in that the diameter of the surface of the stub shaft (2) on the side close to the tow ball (3) is smaller than the diameter of the surface of the stub shaft (2) on the side remote from the tow ball (3).

5. A towing hook according to claim 1 or 4, characterized in that the connecting rod (1) is further provided with an elastic telescopic part, the elastic telescopic part comprises a thin connecting rod (4), a thick sleeve rod (5), a thin elastic connecting plate (6) and a thick elastic connecting plate, the thick sleeve rod (5) is a hollow cylindrical rod, the thin connecting rod (4) is inserted into the thick sleeve rod (5), the thin elastic connecting plate (6) is a disk surface radially extending outwards from the end edge of the thin connecting rod (4), the thick elastic connecting plate is a disk surface extending inwards from the end edge of the thick sleeve rod (5) to be close to the surface of the thin connecting rod (4), and the thin elastic connecting plate (6) and the thick elastic connecting plate are connected through a spring.

6. A tow hook according to claim 5, characterized in that the thick loop bar (5) is provided with a protective frame inside for preventing the thin spring plate (6) from over-extension.

7. A tow hook according to claim 6, wherein the protection frame comprises a fixed bottom plate (7), a protection elastic plate (8), a wrapping side plate and a protection outer plate (9), the fixed bottom plate (7) is a plane plate connected with the inner wall of the thick loop bar (5), the protection elastic plate (8) is a disc panel connected with the surface of the fixed bottom plate (7) through a spring, the wrapping side plate is a cylindrical wall surface extending from the edge of the protection elastic plate (8) to one side of the thick elastic plate, and the protection outer plate (9) is a disc panel extending inwards from the end edge of the wrapping side plate.

8. A tow hook according to claim 7, further comprising an aligning part, wherein the aligning part comprises an aligning nail and a nail embedding groove (10), the nail embedding groove (10) comprises a straight groove and a tightening groove, the straight groove is a cylindrical groove which is inwards recessed from the surface of the side, close to the protection elastic plate (8), of the protection outer plate (9), and the collecting groove is a conical groove which is inwards continued from the inner end edge of the straight groove and gradually converges together.

9. A tow hook according to claim 8, further comprising an interference stabilizer, wherein the interference stabilizer comprises a plate surface stud and a spring plate groove (11), the plate surface stud is a conical protrusion protruding outwards from the surface of the thin spring plate (6) on the side close to the protection spring plate (8) and arranged at intervals, and the spring plate groove (11) is a conical groove recessed inwards from the surface of the protection spring plate (8) on the side far away from the fixed base plate (7).

10. A tow hook according to claim 9, further comprising an auxiliary portion, wherein the auxiliary portion (12) comprises an auxiliary straight plate and a guide inclined plate, the auxiliary straight plate is a flat plate extending from the surface of the protection outer plate (9) and the surface of the protection elastic plate (8) to the opposite direction, and the guide inclined plate is an inclined plate extending from the surface of the wrapping side plate to the opposite direction from the end edge of the auxiliary straight plate at both sides.

Technical Field

The invention relates to the field of automobile parts, in particular to a towing hook.

Background

The towing hook is a common part of an automobile and is used for towing a vehicle which cannot normally run. Most of the current tow hooks are usually welded with a vehicle body into a whole, and a front bumper and a rear bumper are mostly required to be installed on the vehicle, the shape of the front bumper and the rear bumper is influenced to a certain extent by the form of welding the front bumper and the rear bumper into a whole, a large tow hook hole needs to be reserved at the corresponding position of the front bumper and the rear bumper, the appearance of the bumper is influenced, meanwhile, the possibility that the exposed part of the integrated tow hook is corroded is increased, the strength of the tow hook is reduced, and the use safety of the tow hook is influenced.

Disclosure of Invention

The invention provides a towing hook which is used for connecting two vehicles when the vehicles need to be towed, so that the towing hook is more portable.

The technical purpose of the invention is realized by the following technical scheme: the towing hook comprises a connecting rod, a shaft head and a towing ball, wherein the connecting rod is a straight rod, the shaft head and the towing ball are respectively positioned at two ends of the connecting rod, and a bolt hole penetrating through the connecting rod is formed in the middle of the connecting rod.

Preferably, the connecting rods are respectively connected with the axle head and the towing ball through bent connecting rods extending in an upward bending manner.

Preferably, the shaft head is a vertically arranged circular truncated cone.

Preferably, the diameter of the surface of the stub shaft on the side close to the tow ball is smaller than the diameter of the surface of the stub shaft on the side far from the tow ball.

Preferably, the connecting rod is further provided with an elastic telescopic part, the elastic telescopic part comprises a thin connecting rod, a thick sleeve rod, a thin elastic connecting plate and a thick elastic connecting plate, the thick sleeve rod is a hollow cylindrical rod, the thin connecting rod is inserted into the thick sleeve rod, the thin elastic connecting plate is a disc surface extending outwards in a radial mode from the edge of the tail end of the thin connecting rod, the thick elastic connecting plate is a disc surface extending inwards from the end edge of the thick sleeve rod to be close to the surface of the thin connecting rod, and the thin elastic connecting plate is connected with the thick elastic connecting plate through a spring.

Preferably, a protective frame for preventing the thin elastic plate from being excessively stretched and contracted is further arranged in the thick sleeve rod.

Preferably, the protective frame comprises a fixed bottom plate, a protective elastic plate, a wrapping and clamping side plate and a protective outer plate, the fixed bottom plate is a plane plate connected with the inner wall of the thick loop bar, the protective elastic plate is a disc panel connected to the surface of the fixed bottom plate through a spring, the wrapping and clamping side plate is a cylindrical wall surface extending from the edge of the protective elastic plate to one side of the thick elastic plate, and the protective outer plate is a disc panel extending from the end edge of the wrapping and clamping side plate inwards.

Preferably, the nail-inserting protection device further comprises an aligning part, wherein the aligning part comprises an aligning nail and a nail-inserting groove, the nail-inserting groove comprises a straight groove and a tightening groove, the straight groove is a cylindrical groove which is inwards recessed from the surface of one side, close to the protection elastic plate, of the protection outer plate, and the collecting groove is a conical groove which is inwards continuously extended from the edge of the inner end of the straight groove and gradually gathered together to be intersected.

Preferably, still include conflict stabilizer, conflict stabilizer includes face protruding nail and bullet board recess, the face protruding nail is for certainly thin bullet board is close to the surface of protection bullet board one side is outside bellied, interval arrangement's toper protruding, bullet board recess is for certainly the protection bullet board is kept away from the surface of PMKD one side is inside sunken toper type recess.

Preferably, the protection device further comprises an auxiliary part, wherein the auxiliary part comprises an auxiliary straight plate and a guide inclined plate, the auxiliary straight plate is a flat plate which extends oppositely from the surfaces of the protection outer plate and the protection elastic plate, and the guide inclined plate is an inclined panel which faces oppositely from the tail end edges of the auxiliary straight plates on two sides and extends from the surface of the clamping side plate.

In conclusion, the invention has the following beneficial effects: when the automobile needs to be towed, the two automobiles are connected, so that the towing hook is more portable.

Drawings

Fig. 1 is a front view of a tow hook.

Fig. 2 is a top view of the tow hook.

Fig. 3 is an enlarged view of the elastic expansion part.

In the figure: 1. connecting rod, 2, spindle nose, 3, tow ball, 4, thin connecting rod, 5, thick loop bar, 6, thin bullet board, 7, PMKD, 8, protection diving board, 9, protection planking, 10, studded nail groove, 11, diving board recess, 12, assistance portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.