Cabinet door lock and lock shell thereof
By designing a waterproof sealing structure surrounding the assembly cavity on the bottom wall of the lock shell of the cabinet door lock, including sealing strips and drainage grooves, the problem of unsatisfactory sealing effect of the existing cabinet door lock is solved, and a more efficient water discharge and sealing effect is achieved.
Patent Information
- Application Number
- CN202421609503.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The sealing effect of existing cabinet door locks is not ideal, causing water to invade into the lock and cannot be discharged in time, which in turn affects the waterproof performance of the equipment.
A cabinet door lock with drainage function is designed, and the bottom wall of the lock shell is equipped with a waterproof sealing structure surrounding the assembly cavity, including a sealing strip and a drain groove formed in the bottom wall of the lock shell. The sealing strip forms a breaking opening at the tail end of the locking shell, and the drainage groove corresponds to the breaking opening of the sealing strip. One end of the drainage groove is an opening that penetrates the outer side of the locking shell, and the other end leads to the assembly cavity.
By retaining the break-off design of drainage grooves and sealing strips, the lock can effectively prevent a large amount of water from entering, and at the same time, a small amount of water is discharged through the drainage grooves to avoid the formation of water accumulation, improving the waterproof and sealing performance of the cabinet door lock.
Smart Images
Figure CN222949636U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks. Background Art
[0002] The sealing effect of existing cabinet door locks is unreasonable, resulting in insufficient waterproof sealing performance of the lock. For example, the existing lock adopts a closed ring-shaped sealing ring set on the installation bottom surface of the lock shell to achieve sealing. In actual use, the sealing ring cannot achieve a complete sealing effect, and some water still intrudes into the lock shell. The intruded water is blocked by the sealing ring and retained in the lock shell and cannot be discharged in time. The accumulated water penetrates into the interior of the device (such as an electrical cabinet) through the installation screw holes on the lock shell. Summary of the invention
[0003] Purpose of the utility model: To overcome the defects of the prior art, the utility model provides a cabinet door lock with a drainage function.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A cabinet door lock comprises a lock shell, a handle and a lock device for locking the handle on the lock shell, the upper end of the handle is connected to the lock shell, the lower end of the handle is a free end that can be buckled on the lock shell, the end of the lock shell close to the free end of the handle is the tail end, the lock shell has an assembly cavity, the lock shell is provided with a lock shell mounting screw hole column located in the assembly cavity, the bottom wall of the lock shell is provided with a waterproof sealing structure surrounding the assembly cavity, the waterproof sealing structure includes a sealing strip, characterized in that: the waterproof sealing structure also includes a drainage groove formed in a depression on the bottom wall of the lock shell, the drainage groove is located at the tail end of the lock shell, and the corresponding sealing strip forms a breaking opening at the tail end of the lock shell, the drainage groove corresponds to the breaking opening of the sealing strip, one end of the drainage groove is a through opening that passes through the outer side of the lock shell, and the other end of the drainage groove leads to the assembly cavity.
[0006] Preferably, the lock shell has a recess on the top, the handle is arranged in the recess, an unlocking slider is slidably fitted in the assembly recess of the lock shell, the unlocking slider has a hinge seat extending into the recess, the upper end of the handle is hinged on the hinge seat of the unlocking slider, a connecting arm is hinged in the recess, the other end of the connecting arm is configured to be rotatable and slidably connected to the handle relative to the handle, the handle can be popped open and snapped into the recess under the guidance of the connecting arm and the unlocking slider, the handle includes a handle cover shell with a recessed bottom to form a recess, a rubber pad and a fixing bracket are provided in the recess of the handle cover shell, the rubber pad includes a rubber pad main body placed in the recess, the fixing bracket is fixed in the recess of the handle cover shell, the rubber pad main body is pressed and fixed in the recess by the fixing bracket, the edge of the rubber pad main body is flipped and extended to have a sealing skirt abutting against the edge of the recess of the handle cover shell, the sealing skirt contacts and seals with the wall of the recess when the handle is snapped into the recess.
[0007] Preferably, an annular rib is provided on the contact sealing surface of the sealing skirt.
[0008] Preferably, the port of the lock housing mounting screw hole column is higher than the bottom of the drainage groove.
[0009] Preferably, the lock device includes a lock core assembly, which is arranged in an assembly cavity of the lock shell. The lock core assembly includes a lock core body and a lock core seat shell. The lock core body is assembled in the lock core seat shell to form a lock core module, and the lock core seat shell can be detachably installed on the lock shell.
[0010] Preferably, the lock core base shell includes a fixed base portion and an upper end neck portion, the outer diameter of the upper end neck portion is smaller than the outer diameter of the fixed base, thereby forming a shoulder surface between the upper end neck portion and the fixed base, the keyhole of the lock core body is exposed at the port of the upper end neck portion, the top surface of the lock core base shell is provided with a positioning hole that passes through the assembly cavity, the fixed base is fixedly installed in the installation cavity, the upper end neck portion is inserted into the positioning hole, a lock core waterproof ring is sleeved on the upper end neck portion, and the lock core waterproof ring is clamped between the shoulder surface and the end face of the positioning hole.
[0011] By adopting the above technical scheme, the sealing strip at the bottom of the lock shell is no longer sealed in a whole circle, but a drainage groove is reserved at the bottom tail position of the lock shell. The sealing strip can prevent a large amount of water from directly entering the lock body, and a small amount of water is discharged through the tail drainage groove, so that water will not accumulate in the assembly cavity and penetrate into the cabinet through the screw holes; and a rubber pad is arranged on the handle at the same time. On the one hand, a rubber seal is formed between the handle and the wall of the recess matched therewith, thereby improving the waterproof sealing performance of the lock; on the other hand, the rubber pad provides elastic force to improve the opening and closing feel of the handle (popping up from the recess and snapping into the recess); the lock core body and the lock core seat shell form a detachable module installed on the lock shell, which can be replaced and configured into different lock core forms as needed, which is more convenient to use, and a lock core waterproof ring is used between the lock core seat shell and the lock shell to achieve waterproof sealing performance.
[0012] The utility model also provides a lock case of a cabinet door lock with a reasonably designed bottom waterproof structure and a drainage function, comprising a lock case body, the lock case body having an assembly cavity, the bottom wall of the lock case body being provided with a waterproof sealing structure surrounding the assembly cavity, the waterproof sealing structure comprising a sealing strip, characterized in that: the waterproof sealing structure also includes a drainage groove formed in a depression on the bottom wall of the lock case, the drainage groove being located at the rear end of the lock case, the corresponding sealing strip forming a breaking opening at the rear end of the lock case, the drainage groove corresponding to the breaking opening of the sealing strip, one end of the drainage groove being a through opening penetrating the outer side surface of the lock case, and the other end of the drainage groove leading to the assembly cavity.
[0013] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a diagram of the handle of the cabinet door lock of the utility model in the buckled state;
[0015] Figure 2 The handle of the cabinet door lock of the utility model is in the open state Figure 1 ;
[0016] Figure 3 The handle of the cabinet door lock of the utility model is in the open state Figure 2 ;
[0017] Figure 4 This is an exploded view of the handle of the cabinet door lock of the utility model;
[0018] Figure 5 for Figure 1 Sectional view along AA in the middle;
[0019] Figure 6 This is a partial exploded view of another lock core type cabinet door lock of the utility model. DETAILED DESCRIPTION
[0020] See attached Figures 1 to 5 The utility model discloses a cabinet door lock, comprising a lock shell 1, a handle 2 and a lock device for locking the handle 2 on the lock shell 1, the upper end of the handle 2 is connected to the lock shell 1, the lower end of the handle 2 is a free end that can be buckled on the lock shell 1, the end of the lock shell 1 close to the free end of the handle 2 is a tail end 11, the lock shell 1 has an assembly cavity 12, the lock shell 1 is provided with a lock shell mounting screw hole column 13 located in the assembly cavity 12, the bottom wall of the lock shell 1 is provided with a waterproof sealing structure surrounding the assembly cavity 12, the waterproof sealing structure includes a sealing strip 14 and a drainage groove 15 formed in a depression on the bottom wall of the lock shell 1, the drainage groove 15 is located at the tail end 11 of the lock shell 1, the corresponding sealing strip 14 forms a breaking opening 141 at the tail end position of the lock shell 1, the drainage groove 15 corresponds to the breaking opening 141 of the sealing strip 14, one end of the drainage groove 15 is a through opening that passes through the outer side of the lock shell 1, and the other end of the drainage groove 15 leads to the assembly cavity 12. The end of the lock housing mounting screw hole column 13 is higher than the bottom 151 of the drainage groove 15, as shown in the attached Figure 2 and attached Figure 5 The height is D1 higher than shown in the figure. This is to further prevent water from reaching the port of the mounting screw hole column.
[0021] The lock of the utility model is a lifting lock, with a recess 10 on the top of the lock shell 1, the handle 2 is arranged in the recess 10, an unlocking slider 31 is slidably matched in the assembly cavity 12 of the lock shell 1, the unlocking slider 31 has a hinge seat extending into the recess 10, the upper end of the handle 2 is hinged on the hinge seat of the unlocking slider 31, a connecting arm 32 is hinged in the recess 10, the other end of the connecting arm 32 is configured to be rotatable and slidably connected to the handle 2 relative to the handle 2, specifically, a strip hole can be provided on the handle 2, the connecting arm 32 is installed in the strip hole via a hinge shaft, or a strip hole can be provided on the connecting arm 32, and the hinge shaft on the handle 2 is installed in the strip hole; the handle 2 can be bounced open and buckled in the recess 10 under the guidance of the connecting arm 32 and the unlocking slider 31; for further In order to improve the overall sealing performance of the lock, the handle 2 includes a handle cover 21 with a recessed bottom to form a concave cavity. A rubber pad 22 and a fixing bracket 23 are provided in the concave cavity of the handle cover 21. In this specific embodiment, the fixing bracket 23 includes a pressing plate 231 and a mounting frame 232. The mounting frame 232 is used to connect with the unlocking slider 31 and the connecting arm 32. The rubber pad 22 includes a rubber pad main body 221 disposed in the concave cavity. The fixing bracket 23 is fixed in the concave cavity of the handle cover 21. The rubber pad main body 221 is pressed and fixed in the concave cavity by the pressing plate 231 of the fixing bracket 23. The edge of the rubber pad main body 221 is flipped and extended to have a sealing skirt 222 that is abutted against the edge of the concave cavity of the handle cover 21. The sealing skirt 222 contacts and seals with the wall of the concave portion 10 when the handle 2 is buckled into the concave portion 10. When the handle of the pull lock is closed into the recess, the handle and the lock housing are in contact through the sealing skirt, which can achieve waterproof sealing between the handle and the lock housing, thereby preventing water from entering the installation recess of the lock housing through the handle, and can release the pressure of the rubber part, so as to obtain a better closing feel. An annular convex rib 2221 is provided on the contact sealing surface of the sealing skirt 222 to improve the sealing performance.
[0022] The cabinet door lock is usually equipped with a mechanical lock core, so the lock device usually includes a lock core assembly, which is arranged in the assembly cavity 12 of the lock shell 1. In order to facilitate the replacement of different lock cores, the utility model includes a lock core body 41 and a lock core seat shell 42. The lock core body 41 is assembled in the lock core seat shell 42 to form a lock core module, and the lock core seat shell 42 can be detachably installed on the lock shell 1, so that the lock core module composed of the lock core body 41 and the lock core seat shell 42 can be replaced as needed, as shown in the attached Figure 6 Another lock core module is shown in FIG. The detachable mounting structure of the lock core housing is conventional technology. For example, in this specific embodiment, a mounting wing extends from the lock core housing 42, and a connecting hole is provided on the mounting wing.
[0023] In order to improve the sealing and waterproof performance between the lock core module and the lock shell, the lock core base shell 42 includes a fixed base portion 421 and an upper end neck portion 422. The outer diameter of the upper end neck portion 422 is smaller than the outer diameter of the fixed base 421, so that a shoulder surface 423 is formed between the upper end neck portion 422 and the fixed base 421. The keyhole of the lock core body 41 is exposed at the port of the upper end neck portion 422. The top surface of the lock core base shell 42 is provided with a positioning hole 16 that passes through the assembly cavity 12. The fixed base 421 is fixedly installed in the installation cavity 12, and the upper end neck portion 422 is inserted into the positioning hole 16. A lock core waterproof ring 43 is sleeved on the upper end neck portion 422, and the lock core waterproof ring 43 is clamped between the shoulder surface 423 and the end surface of the positioning hole 16.
Claims
1. A cabinet door lock, comprising a lock housing, a handle and a lock device for locking the handle, the upper end of the handle is connected to the lock housing, the lower end of the handle is a free end that can be buckled on the lock housing, the end of the lock housing close to the free end of the handle is a tail end, the lock housing has an assembly cavity, the lock housing is provided with a lock housing mounting screw hole column located in the assembly cavity, the bottom wall of the lock housing is provided with a waterproof sealing structure surrounding the assembly cavity, the waterproof sealing structure includes a sealing strip, characterized in that: The waterproof sealing structure also includes a drainage groove formed in the bottom wall of the lock shell, and the drainage groove is located at the rear end of the lock shell. The corresponding sealing strip forms a breaking opening at the rear end of the lock shell, and the drainage groove corresponds to the breaking opening of the sealing strip. One end of the drainage groove is a through opening that passes through the outer side of the lock shell, and the other end of the drainage groove leads to the assembly cavity.
2. The cabinet door lock according to claim 1, characterized in that: The lock shell has a recess at the top, and the handle is arranged in the recess. An unlocking slider is slidably fitted in the assembly recess of the lock shell, and the unlocking slider has a hinge seat extending into the recess. The upper end of the handle is hinged on the hinge seat of the unlocking slider, and a connecting arm is hinged in the recess. The other end of the connecting arm is configured to be rotatable and slidably connected to the handle relative to the handle. The handle can be popped open and snapped into the recess under the guidance of the connecting arm and the unlocking slider. The handle includes a handle cover shell with a recessed bottom to form a recess. A rubber pad and a fixing bracket are provided in the recess of the handle cover shell. The rubber pad includes a rubber pad main body placed in the recess, and the fixing bracket is fixed in the recess of the handle cover shell. The rubber pad main body is pressed and fixed in the recess through the fixing bracket. The edge of the rubber pad main body is flipped and extended to have a sealing skirt that abuts against the edge of the recess of the handle cover shell. The sealing skirt contacts and seals with the wall of the recess when the handle is snapped into the recess.
3. The cabinet door lock according to claim 2, characterized in that: An annular convex rib is arranged on the contact sealing surface of the sealing skirt.
4. The cabinet door lock according to claim 1, characterized in that: The end of the lock housing mounting screw hole column is higher than the bottom of the drainage groove.
5. The cabinet door lock according to claim 1, characterized in that: The lock device comprises a lock core assembly, which is arranged in an assembly cavity of a lock shell. The lock core assembly comprises a lock core body and a lock core seat shell. The lock core body is assembled in the lock core seat shell to form a lock core module. The lock core seat shell can be detachably mounted on the lock shell.
6. The cabinet door lock according to claim 5, characterized in that: The lock core seat shell includes a fixed base portion and an upper end neck portion. The outer diameter of the upper end neck portion is smaller than the outer diameter of the fixed base, thereby forming a shoulder surface between the upper end neck portion and the fixed base. The keyhole of the lock core body is exposed at the port of the upper end neck portion. The top surface of the lock core seat shell is provided with a positioning hole that penetrates into the assembly cavity. The fixed base is fixedly installed in the installation cavity, and the upper end neck portion is inserted into the positioning hole. A lock core waterproof ring is provided on the upper end neck portion, and the lock core waterproof ring is clamped between the shoulder surface and the end surface of the positioning hole.
7. A lock case of a cabinet door lock, comprising a lock case body, the lock case body having an assembly cavity, the bottom wall of the lock case body being provided with a waterproof sealing structure surrounding the assembly cavity, the waterproof sealing structure comprising a sealing strip, characterized in that: The waterproof sealing structure also includes a drainage groove formed in the bottom wall of the lock shell, and the drainage groove is located at the rear end of the lock shell. The corresponding sealing strip forms a breaking opening at the rear end of the lock shell, and the drainage groove corresponds to the breaking opening of the sealing strip. One end of the drainage groove is a through opening that passes through the outer side of the lock shell, and the other end of the drainage groove leads to the assembly cavity.
8. The lock housing of the cabinet door lock according to claim 7, characterized in that: The end of the lock housing mounting screw hole column is higher than the bottom of the drainage groove.