Trailer coupler lock

Abstract

The utility model relates to a trailer coupler lock, which comprises an upper shell, a lower shell and a locking part, the lower shell is downwards concavely provided with an insertion groove, and the insertion part is inserted into the insertion groove; the lower shell is further provided with a base, the inserting groove is formed in the base, the base is further provided with a component, and the component is located on one side of the inserting groove. A containing cavity is defined by the upper shell and the lower shell, and the component is located in the containing cavity. The accommodating cavity is also provided with an opening; a lock catch part is arranged on one side of the base, a lock cylinder is arranged on the lock catch part, and the lock cylinder is inserted into the inserting groove to lock the inserting part in the inserting groove; and the coupler is provided with a coupler, and the coupler is inserted into the accommodating cavity from the opening and is matched and clamped with the component. Through the arrangement, couplers of various sizes can be locked, shearing, sawing, hammering and prying can be prevented, manufacturing and locking are easy, couplers of various sizes can be locked, shearing, sawing, hammering and prying can be prevented, and manufacturing and locking are easy.

Description

Technical Field

[0001] The utility model application relates to the technical field related to locks, and in particular to a trailer coupler lock. Background Art

[0002] In the related art, in the automotive industry, trailers and RVs are connected to the towing ball at the rear of the car in front through a coupler, so that they can be towed and driven. Trailers and RVs are generally parked outdoors and are easily stolen. Therefore, coupler locks have become a necessity. At present, the cheap coupler locks on the market mainly include U-shaped locks, cast zinc pawl locks, etc., and the expensive coupler locks include cast iron steel ball locks, steel pipes with ice ball locks, etc. After the coupler lock is installed, the coupler cannot be installed on the towing ball at the rear of the car. However, the above-mentioned coupler locks each have certain defects. For example, the U-shaped lock is easy to be cut off by pliers or electric saws, while the cast zinc pawl lock is easy to be hammered or pried off; in addition, the cast iron steel ball lock has high material cost and manufacturing cost, and has great installation limitations. The coupler has three sizes: 1-7 / 8 inches, 2 inches, and 2-5 / 16 inches, and one lock is only suitable for one. Moreover, coupling locks with thick lips cannot be installed; and ice hockey locks for steel pipes are complicated to manufacture and install, have large installation limitations, and one lock is only suitable for one size. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the utility model application provides a trailer coupler lock with an integrated structure, upper and lower unlocking, low manufacturing cost, and simple opening and closing of the lock.

[0004] The utility model application provides a trailer coupler lock, comprising: an upper shell, the upper shell extending downwardly with a plug-in portion; a lower shell, the lower shell being recessed downwardly with a slot, the plug-in portion being inserted into the slot; the lower shell is also provided with a base, the slot is provided on the base, the base is also provided with a component, the component is located on one side of the slot; the upper shell and the lower shell are surrounded by a receiving cavity, the component is located in the receiving cavity; the receiving cavity is also provided with an opening; a locking portion is provided on one side of the base, the locking portion is provided with a lock core, the lock core is inserted into the slot to lock the plug-in portion in the slot; a coupler, the coupler is provided with a connector, the connector is inserted into the receiving cavity from the opening, and is clamped in cooperation with the component.

[0005] In the trailer coupler lock described above, a base is provided on the upper shell, the base has the plug-in portion extending downward, and a handle is provided on the upper side of the base.

[0006] In the above trailer coupler lock, a lock hole is provided on the plug-in portion, and the lock core is inserted into the lock hole to lock the plug-in portion.

[0007] In the trailer coupler lock described above, a guide hole is provided on the slot, a guide column is connected to the slot, and the guide column is inserted into the guide hole.

[0008] In the above trailer coupler lock, a slide groove is provided on the plug-in portion, and the guide column is inserted into the slide groove through the guide hole.

[0009] In the trailer coupler lock described above, one end of the lock core is inserted into the slot through the lock catch portion, and the other end is connected to a dust cover.

[0010] In the above trailer coupler lock, the material of the upper shell and the lower shell is cast iron.

[0011] In the above trailer coupler lock, the coupler is provided with a recessed portion and a guiding portion, the component is arranged in the recessed portion, and the guiding portion enters the accommodating cavity and is located on the base.

[0012] In the trailer coupler lock described above, the lock catch portion is provided with a through hole, the through hole is communicated with the slot, and the lock core is inserted into the slot through the through hole.

[0013] The technical solution provided by the utility model application may include the following beneficial effects: the trailer coupler lock includes an upper shell, a lower shell and a lock core, the plug-in portion of the upper shell is inserted into the slot of the lower shell, the lock core passes through the through hole to insert the plug-in portion into the slot, and the upper shell is locked in the lower shell. The connector of the coupler is inserted into the accommodating cavity from the opening and locked with the components in the accommodating cavity, so that the coupler is locked in the accommodating cavity. With such a configuration, couplers of various sizes can be locked, and can prevent shearing, sawing, hammering and prying, and the manufacturing and locking are simple. Couplers of various sizes can be locked, and can prevent shearing, sawing, hammering and prying, and the manufacturing and locking are simple.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and cannot limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail the exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0016] Figure 1 It is a structural schematic diagram of a trailer coupler lock shown in an embodiment of the utility model application;

[0017] Figure 2 It is one of the partial structural exploded schematic diagrams of the trailer coupler lock shown in the embodiment of the utility model application;

[0018] Figure 3 This is the second schematic diagram of the partial structural decomposition of the trailer coupler lock shown in the embodiment of the utility model application;

[0019] Figure 4 It is a cross-sectional structural diagram of a trailer coupler lock in an unlocked state before the coupler is inserted according to an embodiment of the utility model application;

[0020] Figure 5 It is a cross-sectional structural diagram of a trailer coupler lock in a locked state after the coupler is inserted according to an embodiment of the utility model application.

[0021] Figure ID:

[0022] Upper shell 1; base 11; handle 12; plug-in portion 13; lock hole 14; slide slot 15;

[0023] Lower shell 2; base 21; member 22; slot 23; guide hole 24; locking portion 25; through hole 26;

[0024] Accommodating chamber 3; opening 31;

[0025] Guide column 4;

[0026] Lock core 5; Dust cover 51;

[0027] Coupler 6; connector 61; recessed portion 62; guide portion 63. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present utility model application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present utility model application are shown in the accompanying drawings, it should be understood that the present utility model application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present utility model application more thorough and complete, and to fully convey the scope of the present utility model application to those skilled in the art.

[0029] The terms used in this utility model application are only for the purpose of describing specific embodiments and are not intended to limit this utility model application. The singular forms of "a", "said" and "the" used in this utility model application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0030] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present utility model application, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] The technical solution of the embodiment of the utility model application is described in detail below with reference to the accompanying drawings.

[0032] See also Figures 1 to 5 A trailer coupler lock comprises: an upper shell 1, a lower shell 2, guide columns 4 on both sides of the lower shell 2 and a lock core 5 on the lower shell 2. The upper shell 1 is inserted into the lower shell 2, and the guide columns 4 and the lock core 5 fix the upper shell 1 in the lower shell 2. The trailer coupler lock is an integrated structure consisting of two shells, the upper shell 1 and the lower shell 2, the guide columns 4 on both sides, the lock core 5, and the dust cover 51. The lock can be opened from top to bottom, the manufacturing cost is low, and the lock opening and closing is simple.

[0033] See also Figures 1 to 5 , an upper shell 1, the upper shell 1 has an inserting portion 13 extending downward. The inserting portion 13 is provided with a lock hole 14, and the lock core 5 is inserted into the lock hole 14 to lock the inserting portion 13. Preferably, a base 11 is provided on the upper shell 1, the inserting portion 13 extends downward from the base 11, and a handle 12 is provided on the upper side of the base 11 to facilitate lifting the upper shell 1 and facilitate the up and down sliding of the trailer coupler lock.

[0034] See also Figures 1 to 5 , the lower shell 2 is concavely provided with a slot 23, the plug-in portion 13 is inserted into the slot 23, and can slide up and down in the slot 23. Optionally, the lower shell 2 is further provided with a base 21, the slot 23 is provided on the base 21, and the base 21 is further provided with a component 22, and the component 22 is located at one side of the slot 23. The slot 23 is provided with a guide hole 24, the slot 23 is connected with a guide column 4, and the guide column 4 is inserted into the guide hole 24. Further, the plug-in portion 13 is provided with a slide groove 15, and the guide column 4 is inserted into the slide groove 15 through the guide hole 24 on the slot 23, so that the guide column 4 can slide on the slide groove 15.

[0035] See also Figures 1 to 5The upper shell 1 and the lower shell 2 are surrounded by a receiving chamber 3, the component 22 is located in the receiving chamber 3, the insertion slot 23 is located on one side of the receiving chamber 3, and an opening 31 is provided on the other side of the receiving chamber 3. The coupler 6 enters the receiving chamber 3 from the opening 31, and the upper shell 1 and the lower shell 2 are locked, thereby achieving locking of the coupler 6.

[0036] See also Figures 1 to 5 A locking part 25 is provided on one side of the base 21, and a lock core 5 is provided on the locking part 25. The lock core 5 is inserted into the slot 23 to lock the plug-in part 13 in the slot 23, thereby locking the upper shell 1 in the lower shell 2, and the coupler 6 is locked in the accommodating cavity 3. One end of the lock core 5 is inserted into the slot 23 through the locking part 25, and the other end is connected to a dust cover 51 to prevent foreign matter from entering the lock core 5 and affecting the use effect. A through hole 26 is provided on the locking part 25, and the through hole 26 is communicated with the slot 23. The lock core 5 is inserted into the slot 23 through the through hole 26. When the plug-in part 13 of the upper shell 1 is inserted into the slot 23 of the lower shell 2, and the lock hole 14 on the plug-in part 13 is aligned and coaxial with the through hole 26, the lock core 5 is pressed, and the lock core 5 passes through the through hole 26 from the lock buckle part 25 and is inserted into the lock hole 14, so that the plug-in part 13 is locked, and the coupler 6 is locked in a locked state, locking the coupler 6, and realizing the locking of the upper shell 1 and the lower shell 2.

[0037] See also Figures 4 to 5 , the coupler 6 is provided with a coupler 61, the coupler 61 is inserted into the accommodating cavity 3 from the opening 31, and is clamped with the component 22. The coupler 61 is provided with a recessed portion 62 and a guide portion 63, the component 22 is arranged in the recessed portion 62, and the guide portion 63 enters the accommodating cavity 3 and is located on the base 21. When the upper shell 1 is locked in the lower shell 2, the component 22 is locked in the recessed portion 62, and the guide portion 63 is clamped on the base 21, so that the coupler 6 is locked in the accommodating cavity 3, and the coupler 6 is locked.

[0038] It is worth noting that the material of the upper shell 1 and the lower shell 2 is cast iron, and the upper shell 1 can slide up and down in the slot 23 of the lower shell 2, so that the trailer coupler lock is very convenient to lock and unlock. At the same time, the lock made of this material has a more stable and durable structure, good anti-theft performance, and higher security. In other embodiments, the upper shell 1 and the lower shell 2 can also be made of other hard materials according to different situations.

[0039] In summary, the trailer coupler lock comprises an upper shell 1, a lower shell 2 and a lock core 5. The plug-in portion 13 of the upper shell 1 is inserted into the slot 23 of the lower shell 2. The lock core 5 passes through the through hole 26 to insert the plug-in portion 13 into the slot 23, and the upper shell 1 is locked in the lower shell 2. The connector 61 of the coupler 6 is inserted into the accommodating chamber 3 from the opening 31 and locked with the component 22 in the accommodating chamber 3, so that the coupler 6 is locked in the accommodating chamber 3. With such a configuration, couplers 6 of various sizes can be locked, and can prevent shearing, sawing, hammering and prying, and the manufacturing and locking are simple. Couplers 6 of various sizes can be locked, and can prevent shearing, sawing, hammering and prying, and the manufacturing and locking are simple.

[0040] The embodiments of the present utility model application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A trailer coupler lock, characterized in that: include: An upper shell, wherein the upper shell has an inserting portion extending downward; A lower shell, wherein the lower shell is concave downwardly and is provided with a slot, and the plug-in portion is inserted into the slot; the lower shell is also provided with a base, and the slot is provided on the base, and a component is also provided on the base, and the component is located on one side of the slot; the upper shell and the lower shell are surrounded by a receiving cavity, and the component is located in the receiving cavity; the receiving cavity is also provided with an opening; A locking portion is provided on one side of the base, and a lock core is provided on the locking portion. The lock core is inserted into the slot to lock the plug-in portion in the slot; A coupler is provided with a connector, which is inserted into the accommodating cavity from the opening and clamped with the component.

2. The trailer coupler lock according to claim 1, characterized in that: A base is arranged on the upper shell, the inserting portion is extended downward from the base, and a handle is arranged on the upper side of the base.

3. The trailer coupler lock according to claim 1, characterized in that: The plug-in portion is provided with a lock hole, and the lock core is inserted into the lock hole to lock the plug-in portion.

4. The trailer coupler lock according to claim 1, characterized in that: The slot is provided with a guide hole, the slot is connected with a guide post, and the guide post is inserted into the guide hole.

5. The trailer coupler lock according to claim 4, characterized in that: The inserting portion is provided with a slide groove, and the guide column is inserted into the slide groove through the guide hole.

6. The trailer coupler lock according to claim 1, characterized in that: One end of the lock core is inserted into the slot through the lock catch portion, and the other end is connected with a dust cover.

7. The trailer coupler lock according to claim 1, characterized in that: The upper shell and the lower shell are made of cast iron.

8. The trailer coupler lock according to claim 1, characterized in that: The connector is provided with a recessed portion and a guiding portion, the component is arranged in the recessed portion, and the guiding portion enters into the accommodating cavity and is located on the base.

9. The trailer coupler lock according to claim 1, characterized in that: The lock buckle part is provided with a through hole, the through hole is communicated with the slot, and the lock core is inserted into the slot through the through hole.

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