CN219706580U - Connect stable trailer hook - Google Patents

Abstract

The utility model relates to a stably connected trailer hook which comprises a trailer hook ring and a connecting arm, wherein the trailer hook is hinged to one end of the connecting arm through a pin shaft, the other end of the connecting arm is connected with a mounting seat on an automobile in an inserting mode, a fastener is arranged at the joint of the connecting arm and the mounting seat, the mounting seat is fixedly penetrated through the connecting arm and the fastener through a bolt, a locking assembly is arranged in the fastener, a locking hole penetrating through the locking assembly is formed in the fastener, and the bolt is inserted into the locking hole to rotate so as to drive the locking assembly to unlock and lock. The connecting arm is inserted into the mounting seat on the automobile, the fastening piece is additionally arranged at the joint of the connecting arm and the mounting seat to avoid loosening of the joint position, the mounting seat, the connecting arm and the fastening piece are connected and fixed through the bolt, the locking assembly is arranged in the fastening piece, the bolt can be inserted into the locking assembly through the locking hole on the fixing piece, and when the bolt is rotated, the locking assembly can be driven to lock, multiple connection of the mounting seat, the connecting arm and the fastening piece is realized, and the trailer hook is safer to use.

Description

Connect stable trailer hook

Technical Field

The utility model relates to a trailer hook with stable connection.

Background

The trailer hook is an important part for rescue of an automobile by means of other vehicles and a trailer rope, the traditional trailer hook generally comprises a connecting rod and a connecting ring, the connecting ring is arranged at one end of the connecting rod, a thread structure is arranged at the other end of the connecting rod, during use, the thread structure on the connecting rod is in threaded connection with a mounting seat on an automobile frame, the trailer hook is fixed through rigid connection of the thread structure and the mounting seat, the connecting ring on the other end of the connecting rod is used for being connected with the traction rope, the instant trailer hook started by the vehicle bears larger pulling force, and the problem of sliding wires easily occurs after the trailer hook is used for a long time only by means of threaded connection.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a trailer hook with stable connection, and the problem of sliding wire caused by threaded connection of the trailer hook is avoided.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a connect stable trailer hook, includes towing ring and linking arm, the trailer hook articulates in the one end of linking arm through the round pin axle, the other end of linking arm is pegged graft with the mount pad on the car, linking arm and mount pad junction are equipped with the fastener, run through fixedly through the bolt between mount pad and linking arm, the fastener, the built-in lock of fastener attaches the subassembly, be equipped with the lockhole that runs through the lock and attaches the subassembly on the fastener, the bolt is inserted and is located the downthehole rotation of lockhole in order to drive lock attaches the subassembly and unblank and lock.

Preferably, the fastener is arranged in the connecting arm, the mounting seat and the connecting arm are respectively provided with an inserting hole corresponding to the lock hole, and the inserting pin is arranged in the inserting hole and the lock hole in a penetrating mode.

Preferably, the fastener is at least partially exposed between the connecting arm and the mounting seat, and the exposed part of the fastener is provided with an elastic clamping block which is abutted with the mounting seat.

Preferably, the locking assembly comprises a gear disc, a first rack and a second rack meshed with the gear disc, a first lock tongue connected with the first rack, and a second lock tongue connected with the second rack, wherein the first rack and the second rack are arranged in parallel and are oppositely arranged in a tooth direction, and when the gear disc is driven to rotate, the first lock tongue and the second lock tongue reversely extend.

Preferably, the connecting arm is provided with an opening for the first lock tongue and the second lock tongue to extend out, the mounting seat is provided with a first locking position and a second locking position which are respectively matched with the first lock tongue and the second lock tongue for locking, and the extending directions of the first lock tongue and the second lock tongue are perpendicular to the bolt.

Preferably, the axis of the gear disc is provided with an opening corresponding to the lock hole, and the latch is inserted into the lock hole and the opening.

Preferably, a limiting block is arranged on the plug pin, a limiting groove matched with the limiting block is formed in the gear disc, and when the plug pin is inserted into the opening and rotated, the limiting block on the plug pin is rotationally clamped into the limiting groove to drive the gear to rotate.

Preferably, the free end of the bolt is provided with a thread section, and the thread section is provided with a locking nut for locking.

Preferably, the towing hook ring is U-shaped, two ends of the towing hook ring are provided with perforations, and the towing hook ring is arranged on the pin shaft through the perforations to form a closed loop structure.

Preferably, the free end of the pin shaft is provided with a threaded part, the threaded part is provided with a locking nut, and the towing hook ring is fixed on the pin shaft through the threaded part and the locking nut in a matching way.

In summary, the utility model has the advantages that:

the connecting arm is inserted with the mount pad on the car and set up to add the fastener and avoid combining the position to become flexible in connecting arm and mount pad junction, pass through latch connection and fixed between mount pad, connecting arm and the fastener, and still set up the lock in the fastener and attach the subassembly, lock attach the subassembly and make connecting arm and mount pad close coupling, the while restriction connecting arm takes off with the mount pad, the lock hole can insert lock attach the subassembly on the bolt through the mounting, can drive lock attach the subassembly shutting (reverse rotation bolt then unblanks) when rotating the bolt, thereby realize mount pad, connecting arm and fastener multiple stable connection, further improve the stability of being connected between mount pad, connecting arm and the fastener three, the trailer hook uses safelyr.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic illustration of a towing shackle and attachment arm connection in accordance with the present utility model;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a schematic cross-sectional view of an unlocked state of the locking assembly of the present utility model;

FIG. 5 is a schematic cross-sectional view of a latch assembly according to the present utility model;

FIG. 6 is a schematic view of a mounting base according to the present utility model;

fig. 7 is a schematic structural view of a pin according to the present utility model.

Reference numerals:

1. towing the shackle; 11. perforating; 2. a connecting arm; 21. a jack; 22. an opening; 3. a pin shaft; 31. a threaded portion; 32. a lock nut; 4. a mounting base; 41. a first lock location; 42. a second lock location; 5. a fastener; 51. a lock hole; 52. an elastic clamping block; 6. a locking assembly; 61. a gear plate; 611. opening holes; 612. a limit groove; 62. a first rack; 63. a second rack; 64. a first tongue; 65. a second lock tongue; 7. a plug pin; 71. a limiting block; 72. a lock nut; 73. a threaded section; 8. a threaded hole; 9. a screw; 10. a screw cap; 12. and a spring washer.

Detailed Description

In order to more clearly illustrate the general inventive concept, the present utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.

The utility model provides a connect stable trailer hook, shown as fig. 1-7, includes towing hook ring 1 and linking arm 2, towing hook ring 1 articulates in the one end of linking arm 2 through round pin axle 3, the other end of linking arm 2 is pegged graft with mount pad 4 on the car, linking arm 2 and mount pad 4 junction is equipped with fastener 5, run through fixedly through bolt 7 between mount pad 4 and linking arm 2, the fastener 5, fastener 5 embeds lock attaches subassembly 6, be equipped with the lockhole 51 that runs through lock attaches subassembly 6 on the fastener 5, bolt 7 inserts and locates lockhole 51 internal rotation in order to drive lock attaches 6 and unblanks and lock.

According to the utility model, the connecting arm 2 is spliced with the mounting seat 4 on the automobile, the fastening piece 5 is additionally arranged at the joint of the connecting arm 2 and the mounting seat 4 to avoid loosening of the joint position, the mounting seat 4, the connecting arm 2 and the fastening piece 5 are connected and fixed through the inserted bolt 7, the locking component 6 is further arranged in the fastening piece 5, the connecting arm 2 is tightly combined with the mounting seat 4, the connecting arm 2 and the mounting seat 4 are limited to be released, when the bolt 7 can drive the locking component 6 to unlock and lock through the locking hole 51 on the fixing piece, the stability of the connection among the mounting seat 4, the connecting arm 2 and the fastening piece 5 is further improved, and the trailer hook is safer to use.

In order to avoid loosening the connection part between the connecting arm 2 and the mounting seat 4, the fastening piece 5 may be built in the connecting arm 2, or the fastening piece 5 is at least partially exposed between the connecting arm 2 and the mounting seat 4, and an exposed part of the fastening piece 5 is provided with an elastic clamping block 52 to be abutted against the mounting seat 4. The mounting seat 4 and the connecting arm 2 are respectively provided with an inserting hole 21 corresponding to the lock hole 51, and the plug pin 7 is inserted into the inserting hole and the lock hole 51.

In order to tightly combine the connecting arm 2 with the mounting seat 4 and simultaneously limit the connecting arm 2 to be released from the mounting seat 4, the locking assembly 6 comprises a gear disc 61, a first rack 62 and a second rack 63 meshed with the gear disc 61, a first lock tongue 64 connected with the first rack 62, and a second lock tongue 65 connected with the second rack 63, wherein the first rack 62 and the second rack 63 are arranged in parallel and are oppositely arranged in a tooth direction, and when the gear disc 61 is driven to rotate, the first lock tongue 64 and the second lock tongue 65 reversely extend.

Specifically, the connecting arm 2 is provided with an opening 22 through which the first lock tongue 64 and the second lock tongue 65 extend, the mounting seat 4 is provided with a first locking position 41 and a second locking position 42 which are respectively matched and locked with the first lock tongue 64 and the second lock tongue 65, and the extending direction of the first lock tongue 64 and the second lock tongue 65 is perpendicular to the bolt 7.

In order to facilitate the rotation of the latch 7, the axis of the gear disc 61 is provided with an opening 611 corresponding to the lock hole 51, and the latch 7 is disposed in the lock hole 51 and the opening 611 in a penetrating manner. The free end of the bolt 7 is provided with a thread section 73, the thread section 73 is provided with a locking nut 72, and the bolt 7 is locked by the locking nut 72 after being inserted into the lock hole 51 and the hole 611.

In order to facilitate the bolt 7 to drive the locking assembly 6, a limiting block 71 is arranged on the bolt 7, a limiting groove 612 matched with the limiting block 71 is arranged on the gear disc 61, when the bolt 7 is inserted into the opening 611 and rotates the bolt 7, the limiting block 71 on the bolt 7 is rotationally clamped into the limiting groove 612 to drive the gear disc 61 to rotate, when the bolt 7 is rotated anticlockwise, the gear disc 61 rotates to drive the first rack 62 and the second rack 63 to move outwards, and simultaneously the first lock tongue 64 and the second lock tongue 65 are driven to move outwards until the opening 22 on the connecting arm 2 is matched with the first locking position 41 and the second locking position 42 on the mounting seat 4 to realize locking, and the bolt 7 is reversely rotated to unlock.

In order to avoid damage to the towing hook ring 1 caused by multi-angle towing of the towing rope, the towing hook ring 1 is U-shaped, two ends of the towing hook ring 1 are provided with through holes 11, and the towing hook ring 1 is arranged on the pin shaft 3 through the through holes 11 to form a closed loop structure.

In order to avoid the loose sliding threads of the lock nut 72 caused by long-term use of the towing shackle 1, the free end of the pin shaft 3 is provided with a threaded portion 31, the threaded portion 31 is provided with a lock nut 32, and the towing shackle 1 is fixed on the pin shaft 3 through the threaded portion 31 and the lock nut 32 in a matching way. The screw thread part 31 and the locking nut 32 are provided with threaded holes 8 which penetrate through the screw thread part, a screw 9 is inserted into the threaded holes 8, at least one nut 10 is arranged on the screw 9, and a spring washer 12 is arranged between the locking nut 32 and the nut 10. The locking nut 32 is effectively prevented from slipping and loosening, and the service life of the towing ring 1 is prolonged.

In addition to the above preferred embodiments, the present utility model has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the utility model, which is defined in the appended claims.

Claims (10)

1. A connect stable trailer hook, its characterized in that: including towing ring and linking arm, the towing hook articulates in the one end of linking arm through the round pin axle, the other end of linking arm is pegged graft with the mount pad on the car, linking arm and mount pad junction are equipped with the fastener, run through fixedly through the bolt between mount pad and linking arm, the fastener, the built-in lock of fastener attaches the subassembly, be equipped with the lockhole that runs through the lock and attaches the subassembly on the fastener, the bolt inserts and locates in the lockhole and rotate in order to drive lock attaches the subassembly and unblank and lock.

2. A connection-stable trailer coupler according to claim 1, wherein: the fastener is arranged in the connecting arm, the mounting seat and the connecting arm are respectively provided with a jack corresponding to the lock hole, and the bolt is arranged in the jack and the lock hole in a penetrating mode.

3. A connection-stable trailer coupler as in claim 2, wherein: the fastener is at least partially exposed between the connecting arm and the mounting seat, and the exposed part of the fastener is provided with an elastic clamping block which is abutted with the mounting seat.

4. A connection-stable trailer coupler according to claim 1, wherein: the locking assembly comprises a gear disc, a first rack and a second rack which are meshed with the gear disc, a first lock tongue connected with the first rack, and a second lock tongue connected with the second rack, wherein the first rack and the second rack are arranged in parallel and are oppositely arranged in a tooth direction, and when the gear disc is driven to rotate, the first lock tongue and the second lock tongue reversely extend.

5. The connection-stable trailer hitch of claim 4, wherein: the connecting arm is provided with an opening for the first lock tongue and the second lock tongue to extend out, the mounting seat is provided with a first locking position and a second locking position which are respectively matched and locked with the first lock tongue and the second lock tongue, and the extending directions of the first lock tongue and the second lock tongue are perpendicular to the bolt.

6. The connection-stable trailer hitch of claim 5, wherein: the axle center of the gear disc is provided with an opening corresponding to the lock hole, and the bolt is inserted into the lock hole and the opening.

7. The connection-stable trailer hitch of claim 6, wherein: the bolt is provided with a limiting block, the gear disc is provided with a limiting groove matched with the limiting block, and when the bolt is inserted into the opening and rotated, the limiting block on the bolt is rotationally clamped into the limiting groove to drive the gear to rotate.

8. A connection-stable trailer coupler according to claim 1, wherein: the free end of the pin shaft is provided with a thread section, and the thread section is provided with a locking nut for locking.

9. A connection-stable trailer hitch according to any one of claims 1-8, characterized in that: the towing hook ring is U-shaped, perforations are formed in two ends of the towing hook ring, and the towing hook ring is arranged on the pin shaft through the perforations to form a closed loop structure.

10. The connection-stable trailer coupler of claim 9, wherein: the free end of the pin shaft is provided with a threaded part, the threaded part is provided with a locking nut, and the towing hook ring is fixed on the pin shaft through the threaded part and the locking nut in a matching way.