CN201240237Y - Anti-theft lock for trailer coupling seat - Google Patents

Abstract

The utility model relates to a trailer hitch seat pickproof lock comprises a lock seat, a set of combination and a tool to lock group, wherein: the lock seat is provided with a platform on the body, a sliding block containing chamber is arranged on the inner side of the body, the platform is provided with a chute channel and a lock block containing chamber, and the bottom of the body is provided with a lock core containing chamber communicated with the lock block containing chamber; the sheathing combination comprises: a sliding block, which is at least provided with a lock hole, a through hole and a joint hole, and a bolt body respectively penetrates through the sliding chute channel of the lock seat and the through hole of the sliding block; a ball seat coupled with the slider; the lock set includes: the lock core is arranged in the lock core chamber of the lock seat, and the rear end of the lock core is provided with a bolt; an elastic element accommodated in the lock block chamber of the lock seat; a lock block, which is accommodated in the lock block chamber of the lock base, and the bottom end of the lock block is pushed by the elastic element. The lock set is locked and unlocked by the lock set, so as to limit the sleeve set, thereby preventing the trailer from being stolen.

Description

Anti-theft lock for trailer hitch

technical field

The utility model relates to an accessory of a trailer coupling seat, in particular to an anti-theft lock which can prevent a trailer from being hung up arbitrarily when it is parked.

Background technique

The general trailer coupling seat structure, as shown in Figure 1 and Figure 2, is mainly provided with a wrench mechanism 12 on the coupling seat 1, so as to link a lower button body 14 located in the coupling seat 1, and utilize The said wrench mechanism 12 is used for the ball cover 13 of the coupling seat 1 to be separated from or fastened with the spherical seat of the automobile end. Also because the ball cover 13 of coupling seat 1 is fastened conveniently and quickly with the spherical seat of the car end, so when the trailer is parked and not connected with the car, the described coupling seat 1 is in an open state, so any spherical seat at the car end can be used. It is fastened with it, so that the trailer is easy to be towed away by others. In order to solve this problem, the industry has proposed a structure of a lock 2, which uses its body 20 to cover the side of the spherical cover 13 of the coupling seat 1. Outside the side 131, since the body 20 is provided with a set of grooves 21, the grooves 21 are wedged into the side 131 of the coupling seat 1 and block the opening 132 of the ball cover 13, so that the lock sleeve 2 body 20 The opening 132 (as shown in FIG. 2 ) of the dome cover 13 of the coupling seat 1 can be blocked to prevent the trailer from being stolen.

Although the existing set lock 2 can prevent the coupling seat 1 from being hung arbitrarily when the trailer is not in use, there are still the following deficiencies in actual use:

1. The existing set lock 2 must be manufactured according to the size of the connecting seat 1, so the manufacturer must provide a variety of different styles of set locks 2, thus causing a burden on production and inventory.

2. The area of the opening 132 of the ball cover 13 of the connecting seat 1 of each brand is different, and the cover lock 2 may not be able to completely close the opening 132; therefore, as long as there is a certain degree of gap, the thief can use the object Hooked into the accommodating space 130 at the top of the opening 132, so other methods can be used to achieve the operation of the trailer, which may cause the possibility of the trailer being stolen.

Contents of the invention

In view of this, the purpose of the utility model is to provide an anti-theft lock for the trailer coupling seat which can prevent the trailer from being hung up arbitrarily when it is parked.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

An anti-theft lock for a trailer coupling seat is characterized in that it is composed of a lock seat, a combination set and a lock set, wherein:

The lock seat is provided with a platform on its body, and a slider chamber is provided inside the body, a chute and a lock chamber are provided on the platform, and a lock is provided at the bottom of the body. A heart chamber, and the lock heart chamber communicates with the lock block chamber;

Said set includes:

A slider, which is at least provided with a lock hole, a through hole and an engaging hole, by means of a bolt body respectively pierces through the chute of the lock seat and the through hole of the slider to limit the slider on the lock seat;

A ball seat is connected with the slider, and the size of the ball seat can be replaced according to the size of the ball cover of the connection seat, so that the corresponding specification of the ball seat can be accommodated in the ball cover of the trailer connection seat;

The lock set includes:

A lock core is located in the lock core chamber of the lock seat, and a lock tongue is provided at the rear end thereof;

An elastic element is accommodated in the lock block chamber of the lock seat;

A lock block is a lock block chamber accommodated in the lock seat, the bottom end of which is pushed up by the elastic element, the lock block is provided with a bolt chamber, and the upper section of the lock block The part can protrude into the locking hole of the slider.

It is composed of a lock base, a combination set and a lock set. The set is put into the ball cover of the trailer coupling seat, and then the lock set is opened and closed to limit the position of the lock set. The combined set can effectively prevent the trailer coupling seat from being towed arbitrarily, so as to prevent the trailer from being stolen.

Compared with the prior art, the utility model adopting the above-mentioned technical solution has the advantage that: the utility model can provide the user with a trailer that can be inserted into the spherical cover of the trailer coupling seat by virtue of the above-mentioned set, when the trailer is parked, Cooperate with the opening and closing of the lock set, and set the set with a limit. Effectively prevent the trailer coupling seat from being towed arbitrarily, so as to prevent the trailer from being stolen; therefore, the utility model has practical and progressive benefits, and can effectively solve the existing defects.

Description of drawings

Fig. 1 is a schematic diagram of an embodiment of an existing coupling seat and a sleeve lock;

Fig. 2 is a partial cross-sectional schematic diagram of locking the existing coupling seat and sleeve lock;

Fig. 3 is a three-dimensional exploded schematic diagram of the utility model;

Fig. 4 is a combined schematic diagram of the utility model;

Fig. 5 is a schematic cross-sectional view of the utility model lock seat;

Fig. 6 is a three-dimensional schematic diagram of an embodiment of the utility model;

Fig. 7 is a schematic cross-sectional view of an embodiment of the utility model;

Fig. 8 is a schematic cross-sectional view of a locking embodiment of the present invention;

Fig. 9 is a schematic cross-sectional view of an unlocking embodiment of the present invention.

Detailed ways

Please refer to Fig. 3, Fig. 4 and Fig. 5, which is the anti-theft lock of the trailer coupling seat of the present invention, which is composed of a lock seat 3, a combination group 4 and a lockset group 5, wherein:

The lock seat 3 is provided with a platform 311 on the body 31, and a slider chamber 312 is arranged inside the body 31, and a plate body 3121 is arranged above the slider chamber 312, which has a gap 313, the platform 311 is provided with a chute 314 and a lock block chamber 315, and the bottom of the body 31 is provided with a lock heart chamber 316, and the lock heart chamber 316 is compatible with the The lock block chamber 315 communicates with each other. One side of the lock seat 3 body 31 is provided with a side plate body 32 on which a limiting plate 321 and a retaining edge 322 are arranged. The limiting plate 321 is connected with the plate 312. A matching space 323 is formed between the body 3121, and the side plate body 32 of the lock base 3 is pushed for the user to lock;

The set 4 includes:

A slider 41, which is at least provided with a lock hole 411, a through hole 412 and an engaging hole 413, a chamfer 414 is provided on one side of the slider 41, and the slider 41 is respectively provided with a bolt body 415 Wear the chute 314 of the lock base 3 and the through hole 412 of the slider 41 to limit the slider 41 on the lock base 3;

A ball seat 42 is connected with the slider 41, and the size of the ball seat 61 can be replaced according to the size of the ball cover 61 of the connection seat 6, so that the corresponding ball seat 42 can be accommodated in the connection In the ball cover 61 of the seat 6, and a joint portion 421 is provided below the ball seat 42 for locking in the joint hole 413 of the slider 41 (as shown in FIG. 6 );

The lock set 5 is used to control the combination or disengagement of the sleeve set 4 and the lock seat 3, which includes:

A lock core 51, one side of which is provided with a lock hole 511 (as shown in Figure 6), for a key 512 (as shown in Figure 9) to be inserted to open and close the lock core 51, so as to link the lock core 51 The deadbolt 513 at the end is actuated;

An elastic element 52 is accommodated in the lock block chamber 315 of the lock seat 3;

A lock block 53 is accommodated in the lock block chamber 315 of the lock seat 3, and its bottom end is pushed up by the elastic element 52. The lock block 53 is provided with a deadbolt chamber 531, and the lock The block 53 is braked by the lock tongue 513 of the lock core 51, and the upper section 532 of the lock block 53 can protrude into the lock hole 411 of the slider 41 to block the displacement of the slider 41, and the The upper part 532 of the lock block 53 is provided with a slope 533 corresponding to the chamfer 414 of the slider 41;

With the composition of the above components, as shown in Fig. 6, Fig. 7 and Fig. 8, when the trailer is not parked, the user can insert the ball seat 42 of the set 4 into the ball cover 61 of the trailer coupling seat 6 Inside, push the side plate body 32 of the lock seat 3 to make the lock seat 3 move toward the direction of the coupling seat 6 (at this time, the nesting group 4 does not move), and make the slider 41 and The side 611 of the ball cover 61 of the coupling base 6 is displaced into the slider chamber 312 and the fitting space 323 of the lock base 3 respectively. At this time, the lock block 53 of the lock set 5 is first pressed down by the slider 41, and then pressed down. The elastic element 52 makes the lock block 53 enter the lock block chamber 315 of the lock base 3. When the slider 41 slides into the slider chamber 312, when the lock hole 411 of the slider 41 and the lock of the lock base 3 After the block chambers 315 are overlapped, the lock block 53 is pushed up by the elastic element 52, so that the upper section 532 of the lock block 53 protrudes in the lock hole 411 of the slider 41 (the lock tongue 513 is limited by the above-mentioned lock block 53 to avoid complete disengagement) to block and limit the displacement of the slider 41, and make the side plate body 32 of the lock seat 3 close to the coupling seat 6, which is a locked state (regardless of the coupling seat Whether the wrench 62 of 6 is loosened or not, the cover group 4 cannot be disengaged from the spherical cover 61 of the coupling seat 6), so that the coupling seat 6 can be prevented from being dragged arbitrarily.

When wanting to unlock (as shown in Figure 9), only need to rely on the key 512 to link the dead bolt 513 of the lock core 51, and press down the lock block 53 and the elastic element 52, so that the upper section 532 of the lock block 53 is not locked. Then protrude in the lock hole 411 of the slider 41. At this time, the user can utilize the side plate body 32 of the lock base 3 to remove the lock base 3 from the coupling base 6, so that the lock block 41 and the spherical cover 61 of the coupling base 6 are respectively Leaving the lock block chamber 312 and the fitting space 323 , it is now in an unlocked state, and the ball seat 42 of the fitting group 4 can be removed from the ball cover 61 of the coupling seat 6 .

To sum up, the utility model can provide users with the ability to insert the set into the dome cover of the trailer coupling seat when the user's trailer is parked, and cooperate with the opening and closing of the lock set to limit the set. Effectively prevent the trailer coupling seat from being towed arbitrarily, so as to prevent the trailer from being stolen; therefore, the utility model has practical and progressive benefits, and can effectively solve existing deficiencies.

The above description is only illustrative of the present utility model, rather than restrictive. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims. But all will fall within the protection scope of the present utility model.

Claims (6)

1. trailer coupling seat anti-theft column lock is characterized in that: by by a lock, a cover sets up jointly and a lockset group is formed, wherein:

Described lock, its body is provided with a platform, and is provided with a slide block room in the body inboard, and described platform is provided with a chute road and a lock dog room, and described body bottom is provided with a core room, and described core room is to be communicated with described lock dog room;

Described cover is set up jointly, is to include:

One slide block, it is provided with a lockhole, an open-work and a conjugate foramen at least, relies on a key to wear the chute road of the described lock of rank and the open-work of slide block respectively, with spacing described slide block on lock;

One ball seat is to connect with described slide block, can replace the size of described ball seat according to coupling seat ball cover size, can be installed with in the ball cover of a trailer coupling seat for cooresponding ball seat specification;

Described lockset group is to include:

One core is provided in a side of the core room of described lock, and its rear end is provided with a dead bolt;

One elastic element is the lock dog room that is installed with at described lock;

One lock dog is the lock dog room that is installed with at described lock, and its bottom is subjected to described elastic element ejection, and described lock dog is provided with a dead bolt room, and described again lock dog epimere portion can convexedly stretch in the lockhole of described slide block.

2. trailer coupling seat anti-theft column lock according to claim 1 is characterized in that: described slide block room top has a breach.

3. trailer coupling seat anti-theft column lock according to claim 1 is characterized in that: described lock body is provided with the side plate body, and the side plate body is provided with a positioning plate, and and a plate body of described slide block room top between form a fit space.

4. trailer coupling seat anti-theft column lock according to claim 1 is characterized in that: described slide block one side is provided with a chamfered section.

5. trailer coupling seat anti-theft column lock according to claim 1 is characterized in that: described lock dog epimere portion is provided with an inclined-plane.

6. trailer coupling seat anti-theft column lock according to claim 1 is characterized in that: described ball seat below is provided with a threaded portion, for the conjugate foramen of locking at described slide block.

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