Split lock with handle loosening prevention

Abstract

The utility model discloses a kind of split lock with prevent handle loosening, it is related to split lock technical field, including door lock assembly, including left handle, the left handle side is provided with right handle, the left handle side is fixed with baffle cover piece, the bottom of the baffle cover piece is fixed with baffle cover plate, the baffle cover plate side is fixed with lock body piece, connecting assembly, setting in the side of baffle cover piece.The utility model passes through the collaborative design of door lock assembly and connecting assembly, effectively solve the defect that split lock structure reliability is poor, use convenience is low, on the one hand, anti-loosening structure is additionally provided in handle and lock body connecting portion, avoid the problem that gap increases, component loosening caused by repeated use, eliminate switch door abnormal sound, on the other hand, replace traditional screw fixed with buckle type quick release structure, handle loosening can be quickly overhauled without special tool, reduce artificial maintenance cost, avoid the lock cannot be used caused by maintenance not in time.

Description

Technical Field

[0001] This utility model relates to the field of split lock technology, and in particular to a split lock that prevents the handle from loosening. Background Technology

[0002] In daily use and security scenarios of split locks, it is often necessary to use split locks with handle-prevention features to control the tightness of handle connection, the stability of switch operation, and the reliability of lock body linkage. This is to prevent the handle from becoming loose or shifting due to long-term wear and vibration, or to prevent the switch from jamming or not locking properly due to failure of the connection structure, which would affect the ease of use, anti-theft security, and service life of the split lock.

[0003] Existing split locks have significant defects in structural reliability and ease of use. The connection structure between the handle and the lock body lacks an effective anti-loosening design. With repeated gripping, turning, and vibration and wear during daily use, the handle connection is prone to problems such as increased gaps and loosening of fasteners. A loose handle not only causes abnormal noises and jamming when opening and closing the door, affecting the user experience, but may also cause the handle to fall off due to connection failure, posing a safety hazard. More importantly, after the handle becomes loose, it requires frequent manual repairs by staff to restore function by retightening screws and replacing worn parts. This not only increases labor maintenance costs, but may also cause the lock to malfunction if repairs are not done in a timely manner, causing inconvenience to users' lives or passage. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above and / or existing split locks that prevent the handle from loosening, this utility model is proposed.

[0006] Therefore, the problem that this utility model aims to solve is that the handle is prone to loosening.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a split lock with a handle to prevent loosening, comprising: a door lock assembly including a left handle, a right handle provided on one side of the left handle, a cover member fixed on one side of the left handle, a cover plate fixed at the bottom of the cover member, a lock body member fixed on one side of the cover plate; and a connecting assembly disposed on one side of the cover member, including a first connecting member embedded in the inner wall of the cover plate, and a second connecting member provided on one side of the first connecting member.

[0008] As a preferred embodiment of the split lock with anti-handle loosening described in this utility model, the cover includes a left handle cover fixed to one side of the lock body, a left lock cylinder cover fixed to the bottom of the left handle cover, and a left lock cylinder cover provided on one side of the left lock cylinder cover.

[0009] As a preferred embodiment of the split lock with anti-handle loosening described in this utility model, the lock body includes a connecting plate disposed on one side of the cover buckle plate, and a silent lock body is fixed on one side of the connecting plate.

[0010] As a preferred embodiment of the split lock with anti-handle loosening described in this utility model, wherein: the inner wall of the silent lock body is fixed with a lock tongue.

[0011] As a preferred embodiment of the split lock with anti-handle loosening described in this utility model, the first connecting member includes a lock cylinder fixed to the inner wall of the connecting plate, and a handle cover base is provided on one side of the lock cylinder.

[0012] As a preferred embodiment of the split lock with anti-handle loosening described in this utility model, wherein: a lock cylinder cover base is provided at the bottom of the handle cover base, and pull screws are fixed on the inner walls of both the handle cover base and the lock cylinder cover base, and pull studs are provided on the outer side of the lock cylinder cover base.

[0013] As a preferred embodiment of the split lock with anti-handle loosening described in this utility model, the second connecting member includes a half-square strip fixed to one side of the connecting plate, and a lock cylinder fixing screw is provided on one side of the half-square strip.

[0014] As a preferred embodiment of the split lock with anti-handle loosening described in this utility model, a self-tapping screw is provided at the bottom of the lock cylinder fixing screw, and the lock cylinder fixing screw is fixed to the inner wall of the connecting plate.

[0015] As a preferred embodiment of the split lock with anti-loosening handle described in this utility model, the self-tapping screw is fixed to the inner wall of the connecting plate.

[0016] As a preferred embodiment of the split lock with anti-handle loosening described in this utility model, a locking plate is provided on one side of the connecting plate, and a locking box is fixed to the inner wall of the locking plate.

[0017] The beneficial effects of this utility model are as follows: Through the coordinated design of the door lock component and the connecting component, the defects of poor reliability and low ease of use of the split lock structure are effectively solved. On the one hand, an anti-loosening structure is added to the connection between the handle and the lock body to avoid the problem of increased gap and loose parts caused by repeated use, and to eliminate the safety hazards of abnormal noise, jamming and handle falling off when opening and closing the door. On the other hand, a snap-on quick-release structure is used to replace the traditional screw fixing. When the handle is loose, it can be quickly repaired without special tools, reducing manual maintenance costs and avoiding the lock becoming unusable due to untimely maintenance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of a split lock designed to prevent the handle from loosening.

[0020] Figure 2 An exploded view of the first connecting member of a split lock that prevents the handle from loosening.

[0021] Figure 3 An exploded view of the lock body components of a split lock designed to prevent the handle from loosening.

[0022] Figure 4 An exploded view from another perspective of the lock body of a split lock designed to prevent the handle from loosening.

[0023] Figure 5 An exploded view of the second connector of a split lock that prevents the handle from loosening.

[0024] In the diagram: 1. Door lock assembly; 11. Left handle; 12. Right handle; 13. Cover piece; 131. Left handle cover; 132. Left lock cylinder cover; 133. Set screw; 14. Cover plate; 15. Lock body; 151. Connecting plate; 152. Lock tongue; 153. Silent lock body; 154. Strike plate; 155. Strike box; 2. Connecting assembly; 21. First connecting piece; 211. Lock cylinder; 212. Pull-out screw; 213. Lock cylinder cover base; 214. Handle cover base; 215. Pull-out stud; 22. Second connecting piece; 221. Half square bar; 222. Lock cylinder fixing screw; 223. Self-tapping screw. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1, referring to Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides a split lock with a handle that prevents the handle from loosening. The split lock with the handle that prevents the handle from loosening includes a door lock assembly 1 and a connecting assembly 2.

[0029] By coordinating the design of door lock component 1 and connecting component 2, the defects of poor reliability and low ease of use of split lock structure are effectively solved. On the one hand, an anti-loosening structure is added to the connection between the handle and the lock body to avoid the problem of increased gap and loose parts caused by repeated use, and eliminate the safety hazards of abnormal noise, jamming and handle falling off when opening and closing the door. On the other hand, a snap-on quick-release structure is used to replace the traditional screw fixation. When the handle is loose, it can be quickly repaired without special tools, reducing manual maintenance costs and avoiding the lock becoming unusable due to untimely maintenance.

[0030] Specifically, the door lock assembly 1 includes a left handle 11, a right handle 12 is provided on one side of the left handle 11, a cover 13 is fixed on one side of the left handle 11, a cover plate 14 is fixed at the bottom of the cover 13, and a lock body 15 is fixed on one side of the cover plate 14.

[0031] Specifically, the connecting component 2 is disposed on one side of the cover 13, including a first connecting component 21 embedded in the inner wall of the cover buckle plate 14, and a second connecting component 22 is disposed on one side of the first connecting component 21.

[0032] Example 2, refer to Figures 2-5 This is the second embodiment of the present invention. Based on the previous embodiment, this embodiment focuses on optimizing the protective effect, connection stability, and noise reduction performance of the lock body. The specific structure is described below: Specifically, the cover 13 includes a left handle cover 131 fixed to one side of the lock body 15, a left lock cylinder cover 132 fixed to the bottom of the left handle cover 131, and a right lock cylinder cover 133 provided on one side of the left lock cylinder cover 132.

[0033] The cover 13 is used to protect the handle and lock cylinder of the lock body. The left handle cover 131 is fixed to one side of the lock body 15 and can cover the handle part of the lock body to prevent dust and water stains from entering the handle and causing jamming. It also plays a certain role in anti-collision protection. The left lock cylinder cover 132 is fixed to the bottom of the left handle cover 131 and provides protection to the left side of the lock cylinder. The right lock cylinder cover 133 is set on one side of the left lock cylinder cover 132 and works with the left lock cylinder cover 132 to form a wrap-around protection for the entire lock cylinder, further improving the dustproof and waterproof performance of the lock cylinder.

[0034] Specifically, the lock body 15 includes a connecting plate 151 disposed on one side of the cover plate 14, and a silent lock body 153 is fixed on one side of the connecting plate 151.

[0035] The lock body 15 is the core actuator of the lock. The connecting plate 151 is located on one side of the cover plate 14 and serves as the connection medium between the silent lock body 153 and the external mounting structure, ensuring the accurate installation position of the silent lock body 153. The silent lock body 153 is fixed to one side of the connecting plate 151 and adopts a silent transmission structure design inside, which can reduce friction and collision noise when the lock tongue extends and retracts, and improve the user experience.

[0036] Specifically, a locking tongue 152 is fixed to the inner wall of the silent lock body 153.

[0037] The latch 152 is fixed to the inner wall of the silent lock body 153 and is a key component for opening and closing the lock. It can extend and retract under the drive of the silent lock body 153, inserting into or disengaging from the latch slot of the door frame to complete the locking and unlocking of the door lock. Its surface is treated with wear-resistant material to improve its service life. At the same time, the fit gap between it and the silent lock body 153 is precisely designed to further reduce noise during operation.

[0038] Specifically, the first connector 21 includes a lock cylinder 211 fixed to the inner wall of the connecting plate 151, and a handle cover base 214 is provided on one side of the lock cylinder 211.

[0039] The first connector 21 is used to connect and fix the cover 13 to the lock body. The lock cylinder 211 is fixed to the inner wall of the connecting plate 151 and is the core component for controlling the extension and retraction of the bolt 152. The internal mechanism is driven by the rotation of the key. The handle cover base 214 is set on one side of the lock cylinder 211 to provide installation support for the left handle cover 131, ensuring that the connection between the cover and the lock body is stable and does not loosen.

[0040] Specifically, a lock cylinder cover base 213 is provided at the bottom of the handle cover base 214, and pull screws 212 are fixed on the inner walls of both the handle cover base 214 and the lock cylinder cover base 213, while pull studs 215 are provided on the outer side of the lock cylinder cover base 213.

[0041] The lock cylinder cover base 213 is located at the bottom of the handle cover base 214, corresponding to the installation positions of the left lock cylinder cover 132 and the right lock cylinder cover 133, providing a fixed foundation for the lock cylinder cover. The pull screws 212 are fixed to the inner walls of the handle cover base 214 and the lock cylinder cover base 213 respectively. By pulling in opposite directions, the base and the connecting plate 151 are firmly fixed, enhancing the tensile strength of the connection. The pull studs 215 are located on the outside of the lock cylinder cover base 213 and are used in conjunction with the pull screws 212 to further improve the installation stability of the lock cylinder cover base 213 and prevent it from falling off due to external forces.

[0042] Specifically, the second connector 22 includes a half-square strip 221 fixed to one side of the connecting plate 151, and a lock core fixing screw 222 is provided on one side of the half-square strip 221.

[0043] The second connector 22 is used to assist in the connection between the lock cylinder and the lock body and to reinforce the connecting plate. The half-square strip 221 is fixed to one side of the connecting plate 151. It adopts a half-splicing structure design, which can adapt to different sizes of installation space. At the same time, it enhances the structural rigidity of the connecting plate 151 and prevents it from deforming under stress. Through the interference fit of the half-square strip 221, the handle structure will be fixed to the half-square strip 211 with hexagonal screws, so that the handle will not come loose. The lock cylinder fixing screw 222 is set on one side of the half-square strip 221 to further fix the lock cylinder 211 to the inner wall of the connecting plate 151 and prevent the lock cylinder 211 from rotating or displacing during use.

[0044] Specifically, a self-tapping screw 223 is provided at the bottom of the lock cylinder fixing screw 222, and the lock cylinder fixing screw 222 is fixed to the inner wall of the connecting plate 151.

[0045] The self-tapping screw 223 is located at the bottom of the lock cylinder fixing screw 222 and cooperates with the lock cylinder fixing screw 222 to fix the connecting plate 151 and related parts of the lock body from different positions, thereby improving the overall connection strength. The lock cylinder fixing screw 222 is directly screwed into the inner wall of the connecting plate 151 and cooperates with the mounting hole of the lock cylinder 211 to form a direct fixation of the lock cylinder 211, ensuring the installation accuracy of the lock cylinder 211.

[0046] Specifically, the self-tapping screw 223 is fixed to the inner wall of the connecting plate 151.

[0047] The self-tapping screw 223 can be screwed into the inner wall of the connecting plate 151 without pre-tapping, making installation convenient. It can fix the connecting plate 151 to the cover plate 14 or other auxiliary components, further strengthening the overall connection structure of the lock body, avoiding loose gaps between components, and also reducing abnormal noises during use.

[0048] Example 3, referring to Figures 2-5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0049] Specifically, a locking plate 154 is provided on one side of the connecting plate 151, and a locking box 155 is fixed to the inner wall of the locking plate 154.

[0050] When in use, first screw the external threaded ends of the two pull studs 215 into the threaded holes of the handle cover base 214 to complete the fixation, and then pass them through the lock body hole from the outside of the door, ready to connect and fix them to the handle cover base 214 inside the door.

[0051] Next, use the left handle 11 and right handle 12 to help position the handle cover base 214 inside and outside the door, ensuring that the handle rotates smoothly after positioning. Then, use the pull screw 212 and pull stud 215 to fix the two handle cover bases 214 to the two sides of the door leaf. After tightening the pull screw 212, remove the corresponding handle from the handle cover base 214. Then, press and snap the left handle cover 131 and other parts onto the handle cover base 214 on the inside and outside of the door leaf. When pressing, the notch at the bottom of the left handle cover 131 should be aligned with the protrusion of the handle cover base 214.

[0052] Next, according to the opening direction, use a hex wrench and set screws to install and fix the left handle 11 and the right handle 12 onto the half square strip 221; then screw the external thread end of the pull stud 215 into the threaded hole of the lock cylinder cover base 213 for fixation. With the help of the lock cylinder 211, position the lock cylinder cover base 213 inside and outside the door. Use the pull screw 212 and the pull stud 215 to pull and fix the two lock cylinder cover bases 213 onto both sides of the door leaf. Finally, pull the lock cylinder 211 out of the base and remove it.

[0053] Then, a left lock cylinder cover 132 is fitted onto the lock cylinder 211, the lock cylinder 211 is inserted and passes through the door leaf, the lock cylinder knob is turned to ensure that the extension and retraction of the lock body square tongue 152 can be smoothly controlled, and the lock cylinder 211 is fixed with the lock cylinder fixing screw 222; it is then snapped onto the lock cylinder cover base 213 inside the door.

[0054] Finally, insert another lock cylinder cover into the lock cylinder 211 and press the latch onto the lock cylinder cover base 213 outside the door to complete the installation of the entire split lock. During this process, the self-tapping screws 223 assist in fixing the connecting plate 151, and the strike plate 154 and the strike box 155 work together with the lock tongue 152 to realize the door lock closing function.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A split lock with features to prevent handle loosening, characterized in that: include, A door lock assembly (1) includes a left handle (11), a right handle (12) is provided on one side of the left handle (11), a cover (13) is fixed on one side of the left handle (11), a cover plate (14) is fixed at the bottom of the cover (13), a lock body (15) is fixed on one side of the cover plate (14), and; The connecting component (2) is disposed on one side of the cover (13) and includes a first connector (21) embedded in the inner wall of the cover buckle (14), and a second connector (22) is disposed on one side of the first connector (21).

2. The split lock with handle-preventing mechanism as described in claim 1, characterized in that: The cover (13) includes a left handle cover (131) fixed to one side of the lock body (15), and a left lock cylinder cover (132) is fixed to the bottom of the left handle cover (131). A set screw (133) is provided on one side of the left lock cylinder cover (132).

3. The split lock with handle-preventing mechanism as described in claim 2, characterized in that: The lock body component (15) includes a connecting plate (151) disposed on one side of the cover buckle plate (14), and a silent lock body (153) is fixed on one side of the connecting plate (151).

4. The split lock with anti-handle loosening function as described in claim 3, characterized in that: The inner wall of the silent lock body (153) is fixed with a locking tongue (152).

5. The split lock with handle-preventing mechanism as described in claim 4, characterized in that: The first connector (21) includes a lock cylinder (211) fixed to the inner wall of the connecting plate (151), and a handle cover base (214) is provided on one side of the lock cylinder (211).

6. The split lock with handle-preventing mechanism as described in claim 5, characterized in that: The bottom of the handle cover base (214) is provided with a lock cylinder cover base (213). The inner walls of both the handle cover base (214) and the lock cylinder cover base (213) are fixed with pull screws (212), and the outer side of the lock cylinder cover base (213) is provided with pull studs (215).

7. The split lock with handle-preventing mechanism as described in claim 6, characterized in that: The second connector (22) includes a half-square strip (221) fixed to one side of the connecting plate (151), and a lock core fixing screw (222) is provided on one side of the half-square strip (221).

8. The split lock with handle-preventing mechanism as described in claim 7, characterized in that: The bottom of the lock cylinder fixing screw (222) is provided with a self-tapping screw (223), and the lock cylinder fixing screw (222) is fixed to the inner wall of the connecting plate (151).

9. The split lock with handle-preventing mechanism as described in claim 8, characterized in that: The self-tapping screw (223) is fixed to the inner wall of the connecting plate (151).

10. The split lock with handle-preventing mechanism as described in claim 9, characterized in that: A latch plate (154) is provided on one side of the connecting plate (151), and a latch box (155) is fixed on the inner wall of the latch plate (154).

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