U-shaped lock convenient to assemble
By integrating the housing and limiting structure design, the components of the U-lock are simplified, solving the problems of cumbersome assembly and misalignment, and achieving efficient and precise assembly and use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-14
AI Technical Summary
The existing U-locks have complicated assembly processes, resulting in low production efficiency. Furthermore, the dispersed internal parts can easily cause the transmission components to shift, affecting the user experience.
It adopts an integrated shell design, combined with limiting strips and elastic locking posts, and is made by one-piece injection molding, which simplifies the component structure and enables rapid positioning, assembly and fixation.
It improves the assembly efficiency and accuracy of U-locks, reduces component misalignment, and enhances the user experience.
Smart Images

Figure CN224120076U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-theft lock applications, specifically to a U-shaped lock that is easy to assemble. Background Technology
[0002] U-locks are a common type of lock, widely used due to their simple operation. However, in actual production, conventional U-locks have many internal components, requiring multiple assembly processes. The dispersed nature of these components makes the assembly process cumbersome, affecting production efficiency. Furthermore, the dispersed internal components can easily lead to misalignment and inaccurate positioning of the internal lock body's transmission parts during later use, causing the lock to malfunction and affecting the user experience. Utility Model Content
[0003] The purpose of this invention is to provide a U-lock that is easy to assemble, in order to solve the problems mentioned in the background art.
[0004] The technical solution of this utility model is as follows: a U-shaped lock that is easy to assemble, characterized in that: it includes a lock beam and an integrated housing, a lock body is provided inside the integrated housing, a bottom cover is provided on one side of the upper part of the lock body, second lock beam through holes are provided on both sides inside the integrated housing, a second lock body limiting strip is provided in the middle of the integrated housing, the second lock body limiting strip is used to limit and constrain the bottom of the lock body in the horizontal direction, a first lock body limiting strip is provided on both sides inside the integrated housing, the first lock body limiting strip is used to prevent the lock body from moving relative to the lock body in the vertical direction, and the bottom cover is snapped into the upper part of the integrated housing, and the inside of the bottom cover is abutted and fixed to the horizontal surface of the lock body.
[0005] Preferably, a first locking rod and a second locking rod are horizontally arranged inside the lock body. The first locking rod and the second locking rod are rotatably connected by a lock cylinder shaft, so that the first locking rod and the second locking rod can move horizontally inside the lock body. A spring is also provided on the second locking rod. When the key is rotated on one side of the lock cylinder shaft, the spring is reset. A first lock beam through hole is also provided on both sides inside the bottom cover. A lock cylinder mounting hole is also provided in the middle of the bottom cover.
[0006] Preferably, a through-hole limiting platform is also provided on the through hole of the first lock beam. The through-hole limiting platform is used to approach and fix the lock body to prevent the lock body from moving during the horizontal movement of the first lock rod and the second lock rod.
[0007] Preferably, a support and fixing block is provided on the bottom cover between the first lock beam through hole and the lock cylinder mounting hole. The vertical height of the support and fixing block is the same as the vertical height of the lock cylinder mounting hole, and both the support and fixing block and the lock cylinder mounting hole are fixed to the bottom of the lock body.
[0008] Preferably, an elastic locking post is provided inside the integrated housing near the midpoint. The elastic locking post is generally stepped and is symmetrically distributed vertically inside the integrated housing. The elastic locking post is used to limit the installation of the lock body.
[0009] Preferably, the integrated housing is provided with a housing connecting protrusion around the top, and the bottom cover is provided with a bottom cover connecting groove on the lower outer side. The integrated housing and the bottom cover are fixedly engaged by the housing connecting protrusion and the bottom cover connecting groove.
[0010] Preferably, a locking rod through hole is provided on one side of the second locking beam through hole.
[0011] Preferably, the integrated housing is integrally injection molded.
[0012] Preferably, the curved part in the middle of the lock beam is provided with a silicone sleeve for easy removal and placement. The lock beam is also provided with a lock beam groove, the opening of which faces the inside of the lock body.
[0013] Preferably, the outer surface of the integrated housing is provided with multiple transverse anti-slip grooves to prevent slippage during the handling of the integrated housing.
[0014] Compared with the prior art, this utility model provides a U-lock that is easy to assemble, and has the following advantages:
[0015] 1. The integrated housing allows for rapid positioning and assembly of the lock body. First and second lock body limiting strips fix the lock body horizontally and vertically, while support blocks on the bottom cover provide support from the bottom. 2. Elastic locking pins on the integrated housing enable rapid positioning and fixation of the lock body. The highly integrated housing significantly reduces the number of internal components of the U-lock, decreasing installation and positioning time and improving assembly accuracy. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is an overall distribution diagram of an embodiment of the present utility model.
[0018] Figure 2 This is an exploded view of the embodiment of the present invention with the locking beam concealed.
[0019] Figure 3 Three-dimensional display diagram of the integrated housing from different angles
[0020] Figure 4 This is a front view of an embodiment of the present invention with the integrated housing concealed.
[0021] Figure 5 This is an overall view of the device after it has been moved and integrated into the housing.
[0022] Figure 6 Side view of the integrated housing (3D diagram)
[0023] Figure 7 for Figure 6 A-axis magnified view
[0024] Figure 8 Exploded side view of the bottom cover and integrated housing
[0025] Figure Labels
[0026] 1-Lock beam; 101-Sheath; 102-Lock beam groove; 2-Lock body; 201-Lock cylinder pivot; 202-First lock rod; 203-Second lock rod; 204-Spring; 3-Bottom cover; 301-First lock beam through hole; 3011-Through hole limiting platform; 302-Lock cylinder mounting hole; 303-Support fixing block; 304-Bottom cover connecting groove; 4-Integrated housing; 401-Second lock beam through hole; 4011-Lock rod through hole; 402-First lock body limiting strip; 403-Elastic locking pin; 404-Second lock body limiting strip; 405-Key; 406-Housing connecting protrusion; Detailed Implementation
[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0028] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0032] like Figures 1 to 8 As shown, a U-shaped lock that is easy to assemble is characterized by: including a lock beam 1 and an integrated housing 4, wherein a lock body 2 is disposed inside the integrated housing 4, a bottom cover 3 is disposed on one side of the upper part of the lock body 2, and second lock beam through holes 401 are disposed on both sides inside the integrated housing 4, a second lock body limiting strip 404 is disposed in the middle of the integrated housing 4, the second lock body limiting strip 404 is used to limit and constrain the bottom of the lock body 2 in the horizontal direction, and a first lock body limiting strip 402 is disposed on both sides inside the integrated housing 4, the first lock body limiting strip 402 is used to prevent the lock body 2 from moving relative to each other in the vertical direction, and the bottom cover 3 is snapped into the upper part of the integrated housing 4, and the interior of the bottom cover 3 is abutted and fixed to the horizontal surface of the lock body 2.
[0033] The lock body 2 has a first locking rod 202 and a second locking rod 203 arranged horizontally inside. The first locking rod 202 and the second locking rod 203 are rotatably connected by a lock cylinder shaft 201, so that the first locking rod 202 and the second locking rod 203 can move horizontally inside the lock body 2. The second locking rod 203 is also provided with a spring 204. When the key 405 is located on one side of the lock cylinder shaft 201, it is reset by the spring 204. The bottom cover 3 also has a first lock beam through hole 301 on both sides inside, and a lock cylinder mounting hole 302 is provided in the middle of the bottom cover 3.
[0034] The first lock beam through hole 301 is also provided with a through hole limiting platform 3011. The through hole limiting platform 3011 is used to approach and fix the lock body 2 to prevent the lock body 2 from moving during the horizontal movement of the first lock rod 202 and the second lock rod 203.
[0035] The bottom cover 3 is provided with a support and fixing block 303 between the first lock beam through hole 301 and the lock cylinder mounting hole 302. The vertical height of the support and fixing block 303 is the same as the vertical height of the lock cylinder mounting hole 302. Both the support and fixing block 303 and the lock cylinder mounting hole 302 are fixed to the bottom of the lock body 2 on one side.
[0036] An elastic locking post 403 is provided inside the integrated housing 4 near the midpoint. The elastic locking post 403 is generally stepped and is symmetrically distributed vertically inside the integrated housing 4. The elastic locking post 403 is used to limit the installation of the lock body 2.
[0037] The integrated housing 4 is provided with housing connecting protrusions 403 around the top, and the bottom cover 3 is provided with bottom cover connecting groove 304 on the lower outer side. The integrated housing 4 and the bottom cover 3 are fixedly connected by the housing connecting protrusions 403 and the bottom cover connecting groove 304.
[0038] A locking rod through hole 4011 is provided on one side of the second locking beam through hole 401. The integrated housing 4 is integrally injection molded. A silicone sleeve 101 is provided at the curved part in the middle of the locking beam 1 for easy handling. The locking beam 1 is also provided with a locking beam groove 102, the opening of which faces the inside of the lock body 2. The outer surface of the integrated housing 4 is provided with multiple transverse anti-slip grooves to prevent slippage during handling.
[0039] Operating principle description: During the assembly of the U-lock, the lock body 2 module can be assembled first. The first locking rod 202, the second locking rod 203, and the lock cylinder shaft 201 are assembled inside the lock body. Since the integrated housing 4 is integrally injection molded, its overall weight is relatively light. The assembled lock body 2 is placed inside the integrated housing 4 and fixed and limited by the first lock body limiting strip 402, the elastic locking pin 403, and the second lock body limiting strip 404. The other bottom surface of the lock body is abutted and fixed by the support fixing block 303 on one side of the bottom cover 3. The bottom cover connects to the housing connecting protrusion 406 via the connecting groove 304.
[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A U-lock that is easy to assemble, characterized in that: The device includes a lock beam and an integrated housing. A lock body is installed inside the integrated housing. A bottom cover is installed on one side of the upper part of the lock body. Second lock beam through holes are installed on both sides inside the integrated housing. A second lock body limiting strip is installed in the middle of the integrated housing. The second lock body limiting strip is used to limit and constrain the bottom of the lock body in the horizontal direction. First lock body limiting strips are installed on both sides inside the integrated housing. The first lock body limiting strips are used to prevent the lock body from moving relative to the lock body in the vertical direction. The bottom cover 3 is snapped onto the upper part of the integrated housing, and the inside of the bottom cover is abutted and fixed to the horizontal surface of the lock body.
2. The U-lock as described in claim 1, characterized in that: The lock body has a first locking rod and a second locking rod arranged horizontally inside. The first locking rod and the second locking rod are rotatably connected by a lock cylinder shaft, so that the first locking rod and the second locking rod can move horizontally inside the lock body. The second locking rod is also provided with a spring. When the key is turned on one side of the lock cylinder shaft, the spring is reset. The bottom cover also has first lock beam through holes on both sides inside, and a lock cylinder mounting hole is provided in the middle of the bottom cover.
3. The U-lock as described in claim 2, characterized in that: A through-hole limiting platform is also provided on the first lock beam through hole. The through-hole limiting platform is used to approach and fix the lock body to prevent the lock body from moving during the horizontal movement of the first lock rod and the second lock rod.
4. A U-lock for easy assembly as described in claim 2, characterized in that: The bottom cover is provided with a support and fixing block between the first lock beam through hole and the lock cylinder mounting hole. The vertical height of the support and fixing block is the same as the vertical height of the lock cylinder mounting hole. Both the support and fixing block and the lock cylinder mounting hole are fixed to the bottom of the lock body.
5. A U-lock for easy assembly as described in claim 1, characterized in that: An elastic locking pin is provided near the midpoint inside the integrated housing. The elastic locking pin is stepped in shape and is symmetrically distributed vertically inside the integrated housing. The elastic locking pin is used to limit the installation of the lock body.
6. A U-lock for easy assembly as described in claim 1, characterized in that: The integrated housing is provided with a housing connecting protrusion around the top, and the bottom cover is provided with a bottom cover connecting groove on the lower outer side. The integrated housing and the bottom cover are fixed together by the housing connecting protrusion and the bottom cover connecting groove.
7. A U-lock for easy assembly as described in claim 1, characterized in that: A locking rod through hole is provided on one side of the second locking beam through hole.
8. A U-lock for easy assembly as described in claim 1, characterized in that: The integrated housing is manufactured using a single injection molding process.
9. A U-lock for easy assembly as described in claim 1, characterized in that: The curved part in the middle of the lock beam is provided with a silicone sleeve for easy removal and placement. The lock beam is also provided with a lock beam groove, the opening of which faces the inside of the lock body.
10. A U-lock for easy assembly as described in claim 1, characterized in that: The outer surface of the integrated housing is provided with multiple transverse anti-slip grooves to prevent slippage during the process of picking up and putting down the integrated housing.