Lock cylinder device of plane lock
By introducing a guide column mechanism and guide plane and guide groove structure into the locking core device, the problem of tilt and jam caused by the offset of the force point is solved, and a more stable and reliable lock-opening action is achieved.
Patent Information
- Application Number
- CN202421162449.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The buttons of the existing lock core device are easily inclined due to the offset of the force point when pressed, and cannot rebound smoothly in the assembly hole cavity of the lock core seat, resulting in unstable lock opening operation.
The guide column mechanism and guide plane and guide groove structure are adopted. Through the sliding cooperation of the positioning column and sliding guide block and guide ribs and guide grooves, the cylindrical buttons are ensured to stabilize the positioning and sliding of the cylinder button in the lock core seat, and prevent tilt and jamming.
It realizes reliable positioning and sliding guidance of the cylindrical buttons, ensures the stability and reliability of the unlocking operation, and improves the accuracy and reliability of the lock.
Smart Images
Figure CN222333486U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a lock, more specifically a lock core device. Background Art
[0002] A conventional flat lock has a lock core seat disposed on the handle, a cylindrical button is installed in the assembly hole of the lock core seat, and the button is configured to move up and down on the lock core seat. The lock core seat usually includes an upper seat body formed on the handle, and a bottom cover is provided on the bottom cover of the upper seat body. A mounting hole in the assembly hole cavity that forms a positioning guide for the button is formed on the upper seat body, and a lock core is installed in the middle hole of the button. The lock core and the button are linked in the sliding direction of the button. The button on the conventional lock core device relies on the mounting hole wall of the lock core seat to guide the button when it is pressed and slid. There is a gap between the button and the mounting hole wall of the lock core seat. When the button is pressed, if the force point of pressing the button deviates to one side, it is easy to cause tilting, resulting in the button being stuck in the assembly hole cavity of the lock core seat and unable to rebound smoothly. Summary of the invention
[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a flat lock cylinder device with a cylindrical button that is stable and reliable in movement.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A flat lock cylinder device comprises a lock cylinder seat, a cylindrical button and a lock cylinder arranged on a handle, the cylindrical button slidingly fits in the assembly cavity of the lock cylinder seat, the cylindrical button is equipped with a reset spring, the lock cylinder is assembled in the cylindrical hole cavity of the cylindrical button, the lock cylinder seat comprises an upper seat body formed on the handle and a bottom plate covered on the bottom of the upper seat body, the upper seat body is provided with a positioning hole, the cylindrical button is inserted into the positioning hole, the outer circumferential side of the cylindrical button has a positioning plane, the inner wall of the upper seat body is provided with a guide plane adapted to the positioning plane, and is characterized in that a guide column mechanism is provided between the bottom plate and the cylindrical button, the guide column mechanism comprises a positioning column and a sliding guide block which are respectively arranged on the cylindrical button and the bottom plate and form a sliding guide fit.
[0006] Preferably, the positioning column is fixedly mounted on the bottom plate, and the sliding guide block is protruded on the outer circumference of the cylindrical button, and the sliding guide block is sleeved on the positioning column.
[0007] Preferably, a guide rib is raised on the positioning plane, and a guide groove matched with the guide rib is provided on the guide plane, and the guide rib is slidably fitted in the guide groove.
[0008] Preferably, the upper seat body includes a base on the handle, two side panels are formed on the base, the guide plane is formed on the side panels, positioning recesses are provided at the ends of the two side panels, and pin holes are provided in the transverse direction of the two side panels. Lugs and latch holes are provided on the bottom plate, the lugs are inserted into the positioning recesses and supported on the ends of the side panels, and the latch holes on the bottom plate correspond to the positions of the pin holes on the side panels and are inserted with transverse pins.
[0009] By adopting the above technical scheme, reliable positioning and sliding guidance of the cylindrical button can be achieved, thereby preventing the button from tilting and getting stuck on the inner wall of the positioning hole due to different force points when pressing when unlocking, making the unlocking action more stable and reliable; specifically, a guide column mechanism for slidingly guiding the cylindrical button is formed by using the bottom plate, ensuring that the cylindrical button has a positioning guide structure extending to the position of the bottom plate, and by ensuring the cylindricity of the guide column, the sliding action of the cylindrical button can be guaranteed to be stable and reliable; at the same time, a guide groove is provided on the guide plane of the upper seat body and a guide rib on the cylindrical button to implement positioning and guiding, thereby further improving the reliability of the working of the cylindrical button.
[0010] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a front view of the flat lock cylinder device of the utility model;
[0012] Figure 2 for Figure 1 Sectional view along line AA;
[0013] Figure 3 This is a schematic diagram of the structure of the flat lock cylinder device of the utility model;
[0014] Figure 4 This is an exploded view of the flat lock cylinder device of the utility model. DETAILED DESCRIPTION
[0015] See attached Figures 1 to 4The utility model discloses a flat lock cylinder device, comprising a lock cylinder seat, a cylindrical button 3 and a lock cylinder 4 arranged on the handle 1, the cylindrical button 3 slidingly fits in the assembly cavity of the lock cylinder seat, the cylindrical button 3 is matched with a reset spring, the lock cylinder 4 is assembled in the cylindrical hole cavity of the cylindrical button 3, the lock cylinder 4 and the cylindrical button 3 are linked in the sliding direction of the cylindrical button 3, the lock cylinder seat comprises an upper seat body 21 formed on the handle 1 and a bottom plate 22 covered on the bottom of the upper seat body 21, the upper seat body 21 is provided with a positioning hole, the cylindrical button 3 is inserted in the positioning hole, the outer circumferential side of the cylindrical button 3 has a positioning plane 31, the inner wall of the upper seat body 21 is provided with a guide plane 211 adapted to the positioning plane 31, a guide column mechanism is provided between the bottom plate 22 and the cylindrical button 3, the guide column mechanism comprises a positioning column 41 and a sliding guide block 42 which are respectively arranged on the cylindrical button 3 and the bottom plate 22 and form a sliding guide fit. The positioning column 41 is fixedly mounted on the bottom plate 22, a guide column mounting seat is provided on the bottom plate 22, a knurled section is provided on the guide column 41, and the knurled section of the guide column 41 is fixedly inserted into the hole of the guide column mounting seat, and the sliding guide block 42 is protruded on the outer circumference side of the cylindrical button 3, and the sliding guide block 42 is directly integrally formed on the cylindrical button 3, and the sliding guide block 42 is sleeved on the positioning column 41. Of course, it is easy to think that the positioning column is fixed on the cylindrical button and the sliding guide block is provided on the bottom plate, but under the design of this specific embodiment, the processing and assembly operations of the cylindrical button are more convenient.
[0016] As another embodiment of the present utility model, a guide rib 311 is protruded on the positioning plane 31 , a guide groove 2111 adapted to the guide rib is provided on the guide plane 211 , and the guide rib 311 is slidably fitted in the guide groove 2111 .
[0017] As an embodiment of the utility model, the upper seat body 21 includes a base 212 on the handle 1, two side plate portions 213 arranged oppositely are formed on the base 212, the guide plane 211 is formed on the side plate portion 213, positioning recesses 2131 are provided at the ends of the two side plate portions 213, and pin holes 2132 are provided in the transverse direction of the two side plate portions 213. A lug 221 and a latch through hole are provided on the bottom plate 22, the lug 221 is inserted into the positioning recess 2131 and supported at the end of the side plate portion 213, and the latch through hole on the bottom plate 22 corresponds to the position of the pin hole 2131 on the side plate portion 213 and is inserted with a transverse pin 23. After the base plate is positioned, it is installed and fixed through transverse pins arranged laterally. Compared with the traditional method of screwing in and fixing with screw columns and screw holes on the base plate (using 4 screws for connection, the gap between the screw installation holes and the sides of the screws will affect the installation position of the base plate), the installation position is more precise, further ensuring the stable and reliable guidance of the cylindrical button; and the design of the side plate can provide more bearing entities for the guide plane and the guide groove on the guide plane, extending the design length of the guide plane and the guide groove, thereby making the sliding guide of the button more reliable.
[0018] Under the technical scheme of the utility model, reliable positioning and sliding guidance of the cylindrical button is achieved, thereby preventing the button from tilting and getting stuck on the inner wall of the positioning hole due to different force points when pressing when unlocking, making the unlocking action more stable and reliable, and at the same time ensuring that the installation accuracy of the base plate on the upper seat is higher, ensuring that the lock works stably and reliably.
Claims
1. A planar lock cylinder device, comprising a lock cylinder seat, a cylindrical button and a lock cylinder arranged on a handle, the cylindrical button slidingly fits in the assembly cavity of the lock cylinder seat, the cylindrical button is equipped with a return spring, the lock cylinder is assembled in the cylindrical hole cavity of the cylindrical button, the lock cylinder seat comprises an upper seat body formed on the handle and a bottom plate covering the bottom of the upper seat body, the upper seat body is provided with a positioning hole, the cylindrical button is inserted into the positioning hole, the outer circumference side of the cylindrical button has a positioning plane, the inner wall of the upper seat body is provided with a guide plane adapted to the positioning plane, characterized in that: A guide column mechanism is arranged between the bottom plate and the cylindrical button. The guide column mechanism comprises a positioning column and a sliding guide block which are arranged on the cylindrical button and the bottom plate and cooperate with each other to form a sliding guide.
2. The flat lock cylinder device according to claim 1, characterized in that: The positioning column is fixedly mounted on the bottom plate, and the sliding guide block is protruded on the outer circumference side of the cylindrical button, and the sliding guide block is sleeved on the positioning column.
3. The flat lock cylinder device according to claim 1 or 2, characterized in that: A guide convex rib is protruded on the positioning plane, and a guide groove matched with the guide convex rib is arranged on the guide plane, and the guide convex rib is slidably matched in the guide groove.
4. The flat lock cylinder device according to claim 1 or 2, characterized in that: The upper seat body includes a base on the handle, two side plates arranged oppositely are formed on the base, the guide plane is formed on the side plates, positioning recesses are provided at the ends of the two side plates, and pin holes are provided in the transverse direction of the two side plates, and lugs and plug holes are provided on the bottom plate, the lugs are inserted into the positioning recesses and supported on the ends of the side plates, and the plug holes on the bottom plate correspond to the positions of the pin holes on the side plates and are inserted with transverse pins.
5. The flat lock cylinder device according to claim 3, characterized in that: The upper seat body includes a base on the handle, two side plates arranged oppositely are formed on the base, the guide plane is formed on the side plates, positioning recesses are provided at the ends of the two side plates, and pin holes are provided in the transverse direction of the two side plates, and lugs and plug holes are provided on the bottom plate, the lugs are inserted into the positioning recesses and supported on the ends of the side plates, and the plug holes on the bottom plate correspond to the positions of the pin holes on the side plates and are inserted with transverse pins.