CN215971257U

CN215971257U - Automatic elastic tail hook

Info

Publication number: CN215971257U
Application number: CN202122419784.XU
Authority: CN
Inventors: 戴金福; 戴宗军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-03-08
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses an automatic elastic tail hook, which relates to the technical field of vehicles and solves the technical problem that a tail hook of a carriage tail door is easy to unhook in the using process. According to the utility model, the tail hook body is driven by the first elastic piece to automatically fasten the tail door, and the rotation of the tail hook body is limited by the matching of the limiting block and the limiting wheel, so that unhooking can be effectively prevented.

Description

Automatic elastic tail hook

Technical Field

The utility model relates to the technical field of vehicles, in particular to an automatic elastic tail hook.

Background

The existing common tail hook is hooked on the tail door of a carriage of a dump truck (a self-discharging truck) to serve as a safety door hook, but the hook is frequently unhooked when the dump truck runs on a strongly bumpy road. Some car owners weld nuts on the springs or use adhesive tapes to prevent unhooking, and the mode has poor effect, and unhooking is easy to occur after a period of time.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcome the above-mentioned shortcomings of the prior art, and an object of the present invention is to provide an automatic resilient tail hook which can prevent unhooking.

The technical scheme of the utility model is as follows: the utility model provides an automatic elasticity tail hook, is including installing the tail hook body in the carriage, still includes fixed connection the fixed axle in carriage, the tail hook body rotates to be installed the outer wall of fixed axle, be equipped with the drive between tail hook body and the fixed axle the tail hook body is to the first elastic component of a direction pivoted, the outer wall of fixed axle is equipped with fixed connection and the coaxial spacing wheel of arranging, the periphery of spacing wheel is equipped with a plurality of spacing grooves of evenly arranging, the tail hook body be equipped with swing joint the stopper, will the stopper top is tight second elastic component in the spacing groove, the stopper is equipped with drive it leaves the handle of spacing groove.

As a further improvement, the first elastic element is a coil spring sleeved on the periphery of the fixed shaft, one end of the coil spring is connected with the fixed shaft, and the other end of the coil spring is connected with the tail hook body.

Furthermore, the limiting wheel is a ratchet wheel, the limiting block is a pawl, the pawl is rotatably mounted on the tail hook body through a rotating shaft, the second elastic piece is an elastic piece or a coil spring which enables the pawl to prop against the ratchet wheel, and the handle is connected with the rotating shaft.

Furthermore, the tail hook body is internally provided with an accommodating groove for accommodating the first elastic piece, the limiting wheel, the limiting block and the second elastic piece.

Further, the holding tank is equipped with the apron, the handle is located the outside of apron.

Further, the cover plate is locked on the fixed shaft through an elastic retainer ring.

Further, the fixed shaft is provided with a connecting seat, and the connecting seat is welded on the carriage.

Further, the car tail door hook further comprises a hook column which is connected with the car tail door and is matched with the tail hook body for use.

Advantageous effects

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the tail hook body is driven by the first elastic piece to automatically fasten the tail door, and the rotation of the tail hook body is limited by the matching of the limiting block and the limiting wheel, so that unhooking can be effectively prevented.

Drawings

FIG. 1 is a schematic view of the pawl being captured in a ratchet groove of the present invention;

FIG. 2 is a schematic view of the pawl exiting the ratchet groove of the present invention;

FIG. 3 is a schematic diagram of the novel external structure of the present embodiment;

FIG. 4 is a schematic view of the structure opened in the present embodiment;

FIG. 5 is a schematic view showing the fastening structure in the present embodiment.

Fig. 6 is a schematic structural diagram of the novel middle connection seat of the present embodiment.

Wherein: 1-carriage tail door, 2-tail hook body, 3-fixed shaft, 4-first elastic part, 5-limiting wheel, 6-limiting groove, 7-limiting block, 8-second elastic part, 9-handle, 10-rotating shaft, 11-accommodating groove, 12-cover plate, 13-elastic retainer ring, 14-connecting seat, 15-carriage and 16-hook column.

Detailed Description

The utility model will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1-6, an automatic elastic tail hook comprises a tail hook body 2 installed on a carriage 15 and a fixing shaft 3 fixedly connected with the carriage 15. The outer wall at fixed axle 3 is installed in the rotation of tail hook body 2, be equipped with between tail hook body 2 and the fixed axle 3 drive tail hook body 2 to a direction pivoted first elastic component 4, the outer wall of fixed axle 3 is equipped with fixed connection and coaxial spacing wheel 5 of arranging, the periphery of spacing wheel 5 is equipped with a plurality of spacing grooves 6 of evenly arranging, tail hook body 2 is equipped with swing joint's stopper 7, push up stopper 7 tight second elastic component 8 at spacing groove 6, stopper 7 is equipped with its handle 9 that leaves spacing groove 6 of drive.

The first elastic part 4 is a coil spring sleeved on the periphery of the fixed shaft 3, one end of the coil spring is connected with the fixed shaft 3, the other end of the coil spring is connected with the tail hook body 2, the coil spring drives the tail hook body 2 to rotate, and the tail hook body 2 is enabled to be fastened in a hook groove of the carriage frame all the time, so that unhooking prevention is achieved. The tail hook body 2 is internally provided with an accommodating groove 11 for accommodating the first elastic part 4, the limiting wheel 5, the limiting block 7 and the second elastic part 8. The receiving groove 11 is provided with a cover plate 12, and the handle 9 is positioned outside the cover plate 12. The cover plate 12 is locked on the fixed shaft 3 through an elastic retainer ring 13, and a retainer ring groove corresponding to the elastic retainer ring 13 is arranged on the fixed shaft 3; of course, the cover plate 12 may also be locked to the tail hook body 2 by bolts.

Through the automatic straining tail-gate of first elastic component 4 drive tail hook body 1 to through stopper 7 and the cooperation restriction tail hook body 1 rotation of spacing wheel 5, can effectively prevent to unhook.

The fixed shaft 3 is provided with a connecting seat 14, the connecting seat 14 is welded on the carriage 15, and the tail hook body 1 is sleeved into the fixed shaft 3 and leans against the connecting seat 14.

The car tail door locking device further comprises a hook post 16 which is connected with the car tail door 1 and is matched with the tail hook body 2 for use, the hook post 16 is welded on the car tail door 1, and the tail hook body 2 is buckled in the hook post 16 so that the car tail door 1 can be fastened.

Referring to fig. 1 and 2, the limiting wheel 5 is a ratchet wheel, the limiting block 7 is a pawl, the pawl is rotatably mounted on the tail hook body 2 through a rotating shaft 10, the second elastic piece 8 is a spring sheet or a coil spring which pushes the pawl against the ratchet wheel, wherein when the second elastic piece 8 is the coil spring, the coil spring is sleeved on the periphery of the rotating shaft 10, one end of the coil spring is connected with the rotating shaft 10, the other end of the coil spring is connected with the pawl, the handle 9 is connected with the rotating shaft 10, specifically, the rotating shaft 10 is a hexagonal prism, and the handle 9 is movably sleeved on the hexagonal prism. The pawl can be separated from the groove of the ratchet wheel by rotating the pawl through the handle 9 and overcoming the elasticity of the second elastic part 8, and when the handle 9 is loosened, the pawl is automatically clamped into the groove of the ratchet wheel under the action of the second elastic part 8. As shown in fig. 1, when the pawl is clamped in the groove of the ratchet wheel, the tail hook body 2 is static under the action of the second elastic piece 8 and the pawl; as shown in fig. 2, when the handle 9 rotates the pawl to leave the groove of the ratchet wheel, the coil spring can drive the tail hook body 2 to rotate anticlockwise, and of course, the tail hook body 2 can also be driven to rotate clockwise when the elastic force of the coil spring is overcome by hand.

Fig. 4 shows a schematic structural diagram of the tail hook body 2 when opened in actual application, the tail hook body 2 is installed on the left side of the tail end of the carriage 15, similarly, the tail hook body 2 is also installed on the right side of the tail end of the carriage 15, (fig. 4 is a left side view of the carriage 15, the left and right tail hook bodies 2 act identically, and a right side view of the carriage 15 is not shown), when the pressing handle 9 makes the pawl leave the groove of the ratchet, the tail hook body 2 rotates upwards to leave the hooking post 16, the handle 9 is released, the pawl is automatically clamped into the groove of the ratchet, the tail hook body 2 does not loosen, the carriage tail door 1 can be opened, fig. 5 shows a schematic structural diagram of the tail hook body 2 when fastened in actual application, when the pressing handle 9 makes the pawl leave the groove of the ratchet, the tail hook body 2 automatically buckles in the hooking post 16 of the carriage tail door 1 under the action of the coil spring, the carriage tail door 1 can be fastened, the two sides of the carriage tail door 1 are both provided with hook posts 16, so that the carriage tail door 1 cannot be unhooked.

The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.

Claims

1. An automatic elastic tail hook comprises a tail hook body (2) arranged on a carriage (15), it is characterized by also comprising a fixed shaft (3) fixedly connected with the carriage (15), the tail hook body (2) is rotatably arranged on the outer wall of the fixed shaft (3), a first elastic piece (4) for driving the tail hook body (2) to rotate towards one direction is arranged between the tail hook body (2) and the fixed shaft (3), the outer wall of the fixed shaft (3) is provided with a limit wheel (5) which is fixedly connected and coaxially arranged, a plurality of limit grooves (6) which are uniformly distributed are arranged on the periphery of the limit wheel (5), the tail hook body (2) is provided with a limit block (7) which is movably connected, and a second elastic piece (8) which tightly pushes the limit block (7) in the limit groove (6), the limiting block (7) is provided with a handle (9) for driving the limiting block to leave the limiting groove (6).

2. The automatic elastic tail hook according to claim 1, characterized in that the first elastic member (4) is a coil spring sleeved on the periphery of the fixed shaft (3), one end of the coil spring is connected with the fixed shaft (3), and the other end is connected with the tail hook body (2).

3. The automatic elastic tail hook according to claim 1 or 2, characterized in that the limiting wheel (5) is a ratchet wheel, the limiting block (7) is a pawl, the pawl is rotatably mounted on the tail hook body (2) through a rotating shaft (10), the second elastic member (8) is a spring sheet or a coil spring for pushing the pawl to the ratchet wheel, and the handle (9) is connected with the rotating shaft (10).

4. The automatic elastic tail hook according to claim 1, characterized in that a containing groove (11) for containing the first elastic element (4), the limiting wheel (5), the limiting block (7) and the second elastic element (8) is arranged in the tail hook body (2).

5. An automatic resilient tail hook according to claim 4, characterized in that the receiving groove (11) is provided with a cover plate (12), the handle (9) being located outside the cover plate (12).

6. An automatic resilient tail hook according to claim 5, characterized in that the cover plate (12) is locked to the fixed shaft (3) by means of a circlip (13).

7. An automatic elastic tail hook according to claim 1, characterized in that the fixed shaft (3) is provided with a connecting seat (14), and the connecting seat (14) is welded on the carriage (15).

8. An automatic resilient tail hook according to claim 1, characterized in that it further comprises a hooking stem (16) connected to the trunk tail door (1) and cooperating with the tail hook body (2).