CN220809047U

CN220809047U - Trailer lock cover

Info

Publication number: CN220809047U
Application number: CN202321726611.5U
Authority: CN
Inventors: 姚小勇
Original assignee: Huzhou Lianhang Technology Co ltd
Current assignee: Huzhou Lianhang Technology Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2024-04-19
Anticipated expiration: 2033-07-04

Abstract

The utility model discloses a trailer lock cover which comprises a cover lock body, wherein a lock hole is formed in the right side of the front face of the cover lock body, a key is connected with the inside of the lock hole in a clamping mode, a fixing plate is fixedly connected to the front face of the cover lock body, a buffer assembly is arranged in the fixing plate, a rotating shaft is arranged at the top of the cover lock body, and a lock rod is connected to the outer surface of the rotating shaft in a rotating mode. This trailer lock cover is provided with buffer tank, movable block, recess, spout, slider, first spring and attenuator, when using, the trailer ball can be settled in the recess at movable block top, the recess is the arc, has made things convenient for with the surface assorted of trailer ball, and the movable block can move in the buffer tank to slide through the slider in the spout and keep stable reciprocating, can effectually cushion vibrations through first spring and the attenuator of movable block bottom, reached the absorbing effect, improved the life of cover lock to a certain extent.

Description

Trailer lock cover

Technical Field

The utility model relates to the technical field of trailer balls, in particular to a trailer lock cover.

Background

The trailer ball is also called a trailer hook, a ball-type rear trailer hook or a trailer rod, a traction rod and the like, and the trailer ball in the broad sense is a whole trailer system and consists of three parts: the utility model provides a fixed bolster, spheroid and power pencil, car trailer ball cover lock is the locking device who is used for fixing the trailer ball cover, when locking the trailer ball, often can use a trailer lock cover.

The prior art publication No. CN217944819U provides a ball cover lock for an automobile trailer, the lock is provided with an adjusting structure, a metal rod is connected to a fixed spring on the adjusting structure through a supporting plate, a slide tube and two limiting plates are arranged on the supporting plate, when the lock body and the ball cover of the automobile trailer are locked, a ball body is partially placed on the supporting plate, the metal rod hooks a ball body cavity, the ball body is attached to the supporting plate through the pressing of a knob structure, the fixed spring stretches and contracts to drive the slide tube to be positioned in a lifting groove, the height of the metal rod is adjustable, the use of the ball cover of the trailer with different sizes is met, the application range of the lock is increased, and the two limiting plates are positioned in the two limiting grooves to move, so that the metal rod can only move up and down, the inclination or the deviation during the adjustment is avoided, and the stability of the lock and the ball body are fixed is stronger; through setting up knob structure to connect the clamp plate at the lower extreme of the fixing bolt on knob structure, keep away from fixing bolt's one end at the clamp plate and connect the pinion rack, when the fixed trailer ball cover of cover lock body, cover lock body cover is at trailer ball cover surface, tooth groove on the locking lever is connected with the tapered end, turn round tight fixing bolt again and make the pinion rack contact trailer ball cover on the clamp plate, realize the bilayer of trailer ball cover and fix, increase the stability that the trailer ball cover is fixed, locking steadiness is stronger, but in this patent CN217944819U technique in the trailer ball in the use, the trailer ball is direct to be set up in the backup pad, do not set up buffer gear, vibrations when the car moves can transmit for the trailer ball, lead to the trailer ball to rub with cover lock between, reduce the life of cover lock, therefore, we need a trailer lock cover.

Disclosure of utility model

Based on the above, the present utility model aims to provide a trailer lock cover, so as to solve the problem that in the technology of CN217944819U, in the use process of the trailer ball, the trailer ball is directly disposed on the supporting plate, no buffer mechanism is disposed, and vibration generated during the movement of the automobile is transmitted to the trailer ball, so that friction is generated between the trailer ball and the cover lock, and the service life of the cover lock is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a trailer lock cover, includes the cover lock body, the positive right side of cover lock body is provided with the lockhole, and the inside block of lockhole is connected with the key, the positive fixedly connected with fixed plate of cover lock body, and the inside of fixed plate is provided with buffer assembly, buffer assembly includes dashpot, movable block, recess, spout, slider, first spring and attenuator, the pivot is installed at the top of cover lock body, and the surface rotation of pivot is connected with the locking lever, the surface of locking lever is provided with fixed assembly.

Preferably, the buffer slot is formed in the fixing plate, the movable block is connected to the inner wall of the buffer slot in a clamped mode, the top of the movable block is provided with a groove, the fixing plate forms a movable structure with the movable block through the buffer slot, the shape and the size of the buffer slot are matched with those of the movable block, and the bottom of the movable block stretches into the inner wall of the buffer slot to move.

Preferably, the inside of fixed plate has seted up the spout, and the inner wall sliding connection of spout has the slider, the fixed plate passes through spout and slider constitution sliding structure, and the shape size of spout and the shape size phase-match of slider, one side of slider stretches into the inner wall of spout and is connected to the opposite side of slider is connected with the movable block.

Preferably, the bottom fixedly connected with first spring of movable block, and the inner wall of first spring is gone into and is had the attenuator, the fixed plate constitutes elastic structure through first spring and movable block, and first spring setting is between fixed plate and movable block.

Preferably, the fixed subassembly includes helicoidal groove, screw rod, first connecting piece, second spring, second connecting block and friction block, the helicoidal groove has been seted up to the surface of locking lever, and the inner wall threaded connection of helicoidal groove has the screw rod, the locking lever passes through the helicoidal groove and constitutes revolution mechanic with the screw rod, and the internal thread in helicoidal groove matches with the external screw thread of screw rod, and the one end of screw rod stretches into the inner wall of helicoidal groove and connects.

Preferably, the bottom fixedly connected with first connecting block of screw rod, and the second spring is installed to the bottom of first connecting block to the bottom fixedly connected with second connecting block of second spring, first connecting block constitutes elastic construction through second spring and second connecting block, and the second spring sets up between first connecting block and second connecting block.

Preferably, a friction block is fixedly connected to the bottom of the second connecting block, and the lock rod and the friction block form a moving structure through a screw rod.

Compared with the prior art, the utility model has the beneficial effects that: the lock cover of the trailer is provided with a lock cover,

(1) The novel shock absorber is provided with the buffer groove, the movable block, the groove, the sliding block, the first spring and the damper, when the novel shock absorber is used, the trailer ball is arranged in the groove at the top of the movable block, the groove is arc-shaped, the matching with the outer surface of the trailer ball is facilitated, the movable block can move in the buffer groove and can slide in the sliding groove through the sliding block to keep stable up-and-down movement, the first spring and the damper at the bottom of the movable block can effectively buffer shock, the shock absorbing effect is achieved, and the service life of the cover lock is prolonged to a certain extent;

(2) Be provided with helicoidal groove, screw rod, first connecting block, second spring, second connecting block and clutch blocks, the trailer ball is laid the back, rotates the screw rod, and the screw rod drives first connecting block and moves to the inboard for the clutch blocks support the trailer ball, and the clutch blocks can strengthen the frictional force with between the trailer ball, and carry out spacingly with the clutch blocks of a plurality of angles, can effectually strengthen the fixed effect to the trailer ball.

Drawings

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

FIG. 2 is a schematic diagram of the structure of the present utility model in a front cross-section;

FIG. 3 is a schematic view of the movable block and the first spring according to the present utility model;

FIG. 4 is a schematic view of the screw and the second spring according to the present utility model.

In the figure: 1. a cover lock body; 2. a lock hole; 3. a key; 4. a fixing plate; 5. a buffer assembly; 501. a buffer tank; 502. a movable block; 503. a groove; 504. a chute; 505. a slide block; 506. a first spring; 507. a damper; 6. a rotating shaft; 7. a lock lever; 8. a fixing assembly; 801. a screw groove; 802. a screw; 803. a first connection block; 804. a second spring; 805. a second connection block; 806. friction blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, the present utility model provides a technical solution: the trailer lock cover comprises a cover lock body 1, a lock hole 2 is arranged on the right side of the front surface of the cover lock body 1, a key 3 is connected with the inside of the lock hole 2 in a clamping manner, a fixed plate 4 is fixedly connected with the front surface of the cover lock body 1, a buffer component 5 is arranged inside the fixed plate 4, the buffer component 5 comprises a buffer groove 501, a movable block 502, a groove 503, a sliding groove 504, a sliding block 505, a first spring 506 and a damper 507, the buffer groove 501 is arranged inside the fixed plate 4, the movable block 502 is connected with the inner wall of the buffer groove 501 in a clamping manner, the top of the movable block 502 is provided with the groove 503, the fixed plate 4 and the movable block 502 form a movable structure through the buffer groove 501, the shape and the size of the buffer groove 501 are matched with those of the movable block 502, the bottom of the movable block 502 stretches into the inner wall of the buffer groove 501 to move, the movable block 502 can move inside the fixed plate 4 through the buffer groove 501, the trailer ball is arranged in a groove 503 at the top of the movable block 502, the groove 503 is arc-shaped, the matching with the outer surface of the trailer ball is facilitated, a chute 504 is arranged in the fixed plate 4, the inner wall of the chute 504 is slidably connected with a slide block 505, the fixed plate 4 and the slide block 505 form a sliding structure through the chute 504, the shape and the size of the chute 504 are matched with those of the slide block 505, one side of the slide block 505 stretches into the inner wall of the chute 504 to be connected, the other side of the slide block 505 is connected with the movable block 502, the movable block 502 slides in the chute 504 through the slide block 505, a certain limiting effect can be achieved, the movable block 502 can only keep moving up and down, the bottom of the movable block 502 is fixedly connected with a first spring 506, the inner wall of the first spring 506 is sleeved with a damper 507, the fixed plate 4 and the movable block 502 form an elastic structure through the first spring 506, and the first spring 506 is arranged between the fixed plate 4 and the movable block 502, so that the vibration can be buffered effectively through the first spring 506 and the damper 507 at the bottom of the movable block 502, the damping effect is achieved, the influence on the service life of the cover lock caused by long-time friction between the cover lock and the trailer ball is avoided, and the service life of the cover lock is prolonged to a certain extent.

Referring to fig. 1, 2 and 4, a rotating shaft 6 is installed at the top of a cover lock body 1, the outer surface of the rotating shaft 6 is rotationally connected with a lock rod 7, the outer surface of the lock rod 7 is provided with a fixing component 8, the fixing component 8 comprises a threaded groove 801, a screw rod 802, a first connecting block 803, a second spring 804, a second connecting block 805 and a friction block 806, the threaded groove 801 is formed on the outer surface of the lock rod 7, the screw rod 802 is connected with the inner wall of the threaded groove 801 in a threaded manner, the lock rod 7 and the screw rod 802 form a rotating structure through the threaded groove 801, the internal threads of the threaded groove 801 are matched with the external threads of the screw rod 802, one end of the screw rod 802 extends into the inner wall of the threaded groove 801 to be connected, the screw rod 802 can rotate on the lock rod 7 through the threaded groove 801, in the rotating process, the first connecting block 803 is fixedly connected with the bottom of the screw rod 802, the second spring 804 is installed at the bottom of the first connecting block, the bottom of the second spring 804 is fixedly connected with a second connecting block 805, the first connecting block 803 and the second connecting block 805 form an elastic structure through the second spring 804, the second spring 804 is arranged between the first connecting block 803 and the second connecting block 805, the number of the second springs 804 is two, the two second springs 804 are symmetrically arranged by taking the perpendicular bisectors of the first connecting block 803 as symmetry axes, the first connecting block 803 is conveniently driven by the rotating screw 802 to move the second connecting block 805 inwards, the second spring 804 can play a certain buffering role, the bottom of the second connecting block 805 is fixedly connected with a friction block 806, the lock rod 7 and the friction block 806 form a moving structure through the screw 802, the friction block 806 props against a trailer ball, the friction block 806 can strengthen the friction force between the trailer ball, and the friction blocks 806 are used for limiting at a plurality of angles, the fixing effect on the trailer ball can be effectively enhanced.

Working principle: when the trailer lock cover is used, firstly, when the trailer lock cover is used, the trailer ball is arranged in the groove 503 at the top of the movable block 502, the groove 503 is arc-shaped, the matching with the outer surface of the trailer ball is facilitated, the movable block 502 moves in the buffer groove 501, the movable block 505 slides in the slide groove 504 to stably move up and down, the vibration can be effectively buffered through the first spring 506 and the damper 507 at the bottom of the movable block 502, the vibration absorbing effect is achieved, the service life of the cover lock is prolonged to a certain extent, after the trailer ball is placed, the screw 802 is rotated, the first connecting block 803 drives the first connecting block 803 to move inwards, the first connecting block 803 enables the second connecting block 805 to have elasticity through the second spring 804, a certain buffering effect is achieved, then the friction block 806 is enabled to abut against the trailer ball, the friction block 806 can strengthen the friction force between the trailer ball, the fixing effect on the trailer ball can be effectively enhanced through the friction blocks 806 with a plurality of angles, and all the work is completed.

The terms "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for descriptive simplicity and convenience only and not as an indication or implying that the apparatus or element being referred to must have a particular orientation, be constructed and operated for a particular orientation, based on the orientation or positional relationship illustrated in the drawings, and thus should not be construed as limiting the scope of the present utility model.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Trailer lock cover, including cover lock body (1), its characterized in that: the right side of cover lock body (1) is provided with lockhole (2), and the inside block of lockhole (2) is connected with key (3), the positive fixedly connected with fixed plate (4) of cover lock body (1), and the inside of fixed plate (4) is provided with buffer assembly (5), buffer assembly (5) are including dashpot (501), movable block (502), recess (503), spout (504), slider (505), first spring (506) and attenuator (507), pivot (6) are installed at the top of cover lock body (1), and the surface rotation of pivot (6) is connected with locking lever (7), the surface of locking lever (7) is provided with fixed assembly (8).

2. A trailer lock housing as claimed in claim 1 wherein: the inside of fixed plate (4) has been seted up buffer tank (501), and the inner wall block of buffer tank (501) is connected with movable block (502) to recess (503) have been seted up at the top of movable block (502), fixed plate (4) constitutes the activity structure through buffer tank (501) and movable block (502), and the shape size of buffer tank (501) and the shape size assorted of movable block (502), and the bottom of movable block (502) stretches into the inner wall of buffer tank (501) and moves.

3. A trailer lock housing as claimed in claim 1 wherein: the inside of fixed plate (4) has seted up spout (504), and the inner wall sliding connection of spout (504) has slider (505), fixed plate (4) constitute sliding structure through spout (504) and slider (505), and the shape size of spout (504) and the shape size assorted of slider (505), the inner wall that stretches into spout (504) is connected to one side of slider (505) to the opposite side and movable block (502) of slider (505) are connected.

4. A trailer lock housing as claimed in claim 1 wherein: the bottom fixedly connected with first spring (506) of movable block (502), and the inner wall of first spring (506) is gone into and is had attenuator (507), fixed plate (4) constitutes elastic structure through first spring (506) and movable block (502), and first spring (506) set up between fixed plate (4) and movable block (502).

5. A trailer lock housing as claimed in claim 1 wherein: fixed subassembly (8) include helicoidal groove (801), screw rod (802), first connecting block (803), second spring (804), second connecting block (805) and friction block (806), helicoidal groove (801) have been seted up to the surface of locking lever (7), and the inner wall threaded connection of helicoidal groove (801) has screw rod (802), locking lever (7) constitute revolution mechanic through helicoidal groove (801) and screw rod (802), and the internal thread of helicoidal groove (801) and the external screw thread phase-match of screw rod (802), and the one end of screw rod (802) stretches into the inner wall of helicoidal groove (801) and connects.

6. A trailer lock housing as claimed in claim 5 wherein: the bottom fixedly connected with first connecting block (803) of screw rod (802), and second spring (804) are installed to the bottom of first connecting block (803) to the bottom fixedly connected with second connecting block (805) of second spring (804), first connecting block (803) constitute elastic structure through second spring (804) and second connecting block (805), and second spring (804) set up between first connecting block (803) and second connecting block (805).

7. A trailer lock housing as claimed in claim 5 wherein: the bottom of second connecting block (805) is fixedly connected with friction block (806), locking lever (7) constitutes the moving structure through screw rod (802) and friction block (806).