Sliding door lock cylinder
Through the linkage of the pluck and the lock frame and the opening design of the locking hook structure, the complex problem of gear set and spring structure in the existing sliding door locks is solved, and the stable transmission and convenient installation of the locking hook are achieved, which improves the firmness of the locking and Avoid abnormal noise.
Patent Information
- Application Number
- CN202421047358.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The gear set and spring of the existing sliding door double hook locks have complex structures and are cumbersome to install. After long-term use, the elastic recovery force may become poor, which may cause the lock hook and door frame to loosen and cause abnormal noise.
The pulley is connected to the lock frame, and the opening and closing action of the lock hook is realized through the opening design, avoiding the use of springs. The lock hook automatically gathers in the unlocked state, and uses positioning columns and shrapnel to achieve rapid reset, simplifying the structure and improving locking stability.
It realizes stable transmission and convenient installation of the lock hook, improves the firmness of the lock, avoids abnormal noise problems, simplifies structural design, and reduces installation complexity.
Smart Images
Figure CN222276423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to a sliding door lock core. Background Art
[0002] Sliding doors are a common type of door used in homes. They refer to doors that can be pushed or pulled and are widely used in bookcases, wall cabinets, living rooms, showrooms, etc. Double hook locks are often used to lock sliding doors and door frames, so that the sliding doors can be fixed in position with the door frame.
[0003] Chinese patent number CN202222938128.5 discloses a double-hook lock for sliding doors, which belongs to the field of mechanical lock technology, and includes a lock shell, wherein the lock shell is provided with a locking cavity, wherein a first gear is rotatably arranged in the locking cavity, wherein the first gear is meshed with a second gear, wherein the first gear and the second gear are both meshed with a third gear, wherein the two third gears are both fixedly connected with lock hooks, and the two lock hooks are symmetrically arranged, wherein a first spring is arranged between the two lock hooks, and the first spring is fixedly connected to the two lock hooks.
[0004] The problems existing in the above patent are: a gear set is used to link the two lock hooks, and a spring is arranged between the two lock hooks. Turning one of the gears can drive the two lock hooks to open. After releasing the key, the two lock hooks are reset close to each other under the action of the spring. However, the structure of the gear set and the spring is relatively complicated, and the subsequent installation is relatively cumbersome. Moreover, the spring is pulled and reset. Long-term use will cause the elastic restoring force to deteriorate, making the lock hook and the lap column in the door frame loose, which may cause abnormal noise when the sliding door is pulled hard. Utility Model Content
[0005] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a sliding door lock core.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sliding door lock core, including a lock shell, a locking cavity is provided in the lock shell and an opening connected to the locking cavity is provided on the lock shell, a pair of lock hooks are provided at the corresponding openings of the locking cavity, a lock frame is slidably provided in the locking cavity and a dial wheel is rotatably provided, the dial wheel is meshed with the lock frame for transmission, a pair of lock hooks are hinged to the lock frame, and the dial wheel is rotated to make the lock frame drive the pair of lock hooks to extend or retract into the lock shell, and the pair of lock hooks have an open state of extending out of the opening and a gathered state of retracting into the opening.
[0007] As a preferred technical solution of the utility model, a hook portion is provided on the opposite side of the two lock hooks, and the lock hooks extending out of the opening can abut against the limiting surface in the lock shell, so that the two hook portions are separated from each other.
[0008] As a preferred technical solution of the utility model, a hook-shaped portion is arranged on the outer side of one end hinged to the lock frame of the two lock hooks, which can abut against the limiting surface to open the two to each other. The limiting surface is arranged on the inner wall of the lock shell corresponding to the opening side.
[0009] As a preferred technical solution of the utility model, a clearance groove is provided on the lock hook between the hook portion and the hook portion.
[0010] As a preferred technical solution of the utility model, when the two lock hooks are in the unlocked state, the width of the part at one end of the opening is adapted to the shape of the opening, so that the two lock hooks are automatically gathered together when the locked state is switched to the unlocked state due to the width of the opening.
[0011] As a preferred technical solution of the utility model, positioning columns are provided on the two lock hooks, and positioning holes are provided on the lock frame. The positioning columns are rotatably matched with the positioning holes, and a limiting column is provided at the hinge of the lock frame corresponding to the lock hook. An installation gap is left between the limiting column and the two lock hooks, and the installation gap is limited by a spring sheet. When the two lock hooks are in a locked state, the spring sheet is deformed under pressure.
[0012] As a preferred technical solution of the present invention, the two lock hooks are provided with an arc surface at one end facing the spring sheet, and the spring sheet includes two arc-shaped sheets connected to each other and fitting with the arc surfaces of the two lock hooks, and the limit column is located on the back of the connection between the two arc-shaped sheets.
[0013] As a preferred technical solution of the utility model, a rack portion is integrally or fixedly provided at one end of the lock frame relative to the lock hook, and a plurality of toothed portions meshing with the rack portion for transmission are provided on the dial wheel.
[0014] As a preferred technical solution of the utility model, a locating pin is provided on the thumb wheel, and an arc-shaped locating groove adapted to the rotation path of the locating pin is provided in the lock housing. When the locating pin is at both ends of the arc-shaped locating groove, it corresponds to the locked state and the unlocked state of a pair of lock hooks respectively. An elastic member is provided in the lock housing corresponding to the position of the locating pin and the locating pin is always against the elastic member. When the locating pin is at both ends of the arc-shaped locating groove, it is pressed against the inner wall of the locating groove under the action of the spring sheet.
[0015] As a preferred technical solution of the utility model, the lock shell is provided with a through hole in the vertical direction, and the through hole is provided with a first connecting member and a second connecting member that cooperate with each other, the first connecting member and the second connecting member are located on the upper and lower sides of the lock shell, the first connecting member includes a first connecting plate and a connecting column passing through the through hole, the second connecting member includes a second connecting plate, the second connecting plate is threadedly matched with the connecting column through bolts, the first connecting plate and the second connecting plate are provided with a first serrated surface on one side close to each other, and the upper and lower side surfaces of the lock shell are provided with a second serrated surface that meshes with the first serrated surface.
[0016] To sum up, the beneficial effects of the utility model are as follows: through the linkage between the thumbwheel and the lock frame, a pair of lock hooks can be driven to pass through the opening to realize the opening and closing action, the transmission is stable and the installation is convenient, and the specific working method is as follows: when the sliding door lock core is installed, an installation groove is opened on the side wall where the sliding door contacts the door frame, and the lock shell is just inserted into the installation groove, and the thumbwheel is rotated to make the lock frame slide toward the opening direction, and when the hook-shaped parts of the two lock hooks abut against the limiting surface, the two lock hooks are opened and separated from each other away from one end of the lock frame, so that the hook parts of the two lock hooks directly hook the installation groove or indirectly hook the card in the installation groove, thereby improving the firmness of the double hook lock. At this time, a pair of lock hooks are in a locked state matched with the door frame installation groove, and when the thumbwheel is reset, the two lock hooks are limited by the opening size and gradually retracted into the lock shell to make the hook parts gather together, and at this time, a pair of lock hooks are in an unlocked state separated from the door frame installation groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model;
[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model in which a pair of lock hooks are retracted into the lock housing;
[0019] Figure 3 It is a schematic diagram of the internal structure of the utility model in which a pair of lock hooks are retracted into the lock housing;
[0020] Figure 4 It is a schematic diagram of the internal structure of the utility model in which a pair of lock hooks extend out of the lock housing;
[0021] Figure 5 It is a schematic diagram of the internal structure of the utility model in which a pair of lock hooks extend out of the lock housing;
[0022] Figure 6 It is a schematic diagram of the structure of the lock housing and a pair of lock hooks in the utility model;
[0023] Figure 7 It is a structural schematic diagram of the first connecting member and the second connecting member in the utility model.
[0024] Figure numerals: 1, lock housing; 2, locking cavity; 3, opening; 4, lock hook; 5, lock frame; 6, dial; 7, hook portion; 8, limiting surface; 9, hook-shaped portion; 10, clearance groove; 11, positioning column; 12, positioning hole; 13, limiting column; 14, spring piece; 15, arc surface; 16, arc-shaped sheet; 17, rack portion; 18, toothed portion; 19, positioning pin; 20, arc-shaped positioning groove; 21, elastic member; 22, through hole; 23, first connecting member; 24, second connecting member; 25, first connecting plate; 26, connecting column; 27, second connecting plate; 28, first serrated surface; 29, second serrated surface; 30, operating handle. DETAILED DESCRIPTION
[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.
[0026] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.
[0027] like Figures 1 to 7 A sliding door lock cylinder shown in the figure comprises a lock shell 1, a locking cavity 2 is provided in the lock shell 1 and an opening 3 connected to the locking cavity 2 is provided on the lock shell 1, a pair of lock hooks 4 are provided at the locking cavity 2 corresponding to the opening 3, a lock frame 5 is slidably provided in the locking cavity 2 and a dial wheel 6 is rotatably provided, the dial wheel 6 is meshed with the lock frame 5 for transmission, the pair of lock hooks 4 are hinged to the lock frame 5, and the dial wheel 6 is rotated to make the lock frame 5 drive the pair of lock hooks 4 to extend or retract into the lock shell 1, and the pair of lock hooks 4 have an open state of extending out of the opening 3 and a gathered state of retracting into the opening 3.
[0028] A hook portion 7 is disposed on the opposite side of the two lock hooks 4 . The lock hook 4 extends out of the opening 3 and can abut against a limit surface 8 in the lock housing 1 , so that the two hook portions 7 are away from each other.
[0029] A hook-shaped portion 9 is provided on the outer side of one end where the two lock hooks 4 are hinged to the lock frame 5, which can abut against the limiting surface 8 to open the two to each other. The limiting surface 8 is provided on the inner wall of the lock shell 1 on the side corresponding to the opening 3. When the hook-shaped portion 9 abuts against the limiting surface 8, the two lock hooks 4 open away from each other with the hinge point as the fulcrum.
[0030] The lock hook 4 is provided with a clearance groove 10 between the hook portion 9 and the hook portion 7 . The clearance groove 10 provides a swing space so that the lock hook 4 can be opened and closed normally when the hook portion 9 abuts against the limiting surface 8 .
[0031] When the two lock hooks 4 are in the unlocked state, the width of the part at one end of the opening 3 is adapted to the shape of the opening 3, so that the two lock hooks 4 can automatically gather together due to the width of the opening 3 when the locked state is switched to the unlocked state, without the need to use springs and other parts for reset. When the lock hooks 4 are locked back, they can gradually gather together due to the size of the opening 3.
[0032] A positioning column 11 is provided on each of the two lock hooks 4, and a positioning hole 12 is provided on the lock frame 5. The positioning column 11 is rotatably matched with the positioning hole 12. A limiting column 13 is provided at the hinged position of the lock frame 5 corresponding to the lock hook 4. An installation gap is left between the limiting column 13 and the two lock hooks 4, and a spring piece 14 is limited in the installation gap. When the two lock hooks 4 are in a locked state, the spring piece 14 is deformed under pressure, and when the lock hook 4 is retracted into the lock shell 1, it can be quickly reset under the action of the spring piece 14.
[0033] The two lock hooks 4 have an arc surface 15 at one end facing the spring sheet 14 . The spring sheet 14 includes two arc pieces 16 connected to each other and in contact with the arc surfaces 15 of the two lock hooks 4 . The limiting column 13 is located on the back of the connection between the two arc pieces 16 .
[0034] A rack portion 17 is integrally formed with or fixed to one end of the lock frame 5 opposite to the lock hook 4 , and a plurality of toothed portions 18 meshing with the rack portion 17 for transmission are arranged on the dial wheel 6 .
[0035] A locating pin 19 is provided on the thumbwheel 6, and an arc-shaped locating groove 20 adapted to the rotation path of the locating pin 19 is provided in the lock housing 1. When the locating pin 19 is at both ends of the arc-shaped locating groove 20, it corresponds to the locked state and the unlocked state of a pair of lock hooks 4 respectively. An elastic member 21 is provided at the position corresponding to the locating pin 19 in the lock housing 1, and the locating pin 19 always abuts against the elastic member 21. When the locating pin 19 is at both ends of the arc-shaped locating groove 20, it is pressed against the inner wall of the locating groove under the action of the spring piece 14. In this embodiment, the elastic member 21 is in a U-shaped structure, and the elastic member 21 is located below the locating pin 19, so that when the locating pin 19 moves to both ends of the arc-shaped locating groove 20, it can squeeze the elastic member 21 to prevent the thumbwheel 6 from loosening and rotating at will. An operating handle 30 is provided on the thumbwheel 6. Driving the operating handle 30 to rotate can drive the thumbwheel 6 to rotate. The operating handle 30 can be provided with a lock hole or a lock core.
[0036] The lock housing 1 is provided with a through hole 22 in the vertical direction, and a first connecting member 23 and a second connecting member 24 that cooperate with each other are provided at the through hole 22. The first connecting member 23 and the second connecting member 24 are located on the upper and lower sides of the lock housing 1. The first connecting member 23 includes a first connecting plate 25 and a connecting column 26 that passes through the through hole 22. The second connecting member 24 includes a second connecting plate 27. The second connecting plate 27 is threadedly matched with the connecting column 26 through bolts. The first connecting plate 25 and the second connecting plate 27 are close to each other on one side and a first serrated surface 28 is provided. The upper and lower side surfaces of the lock housing 1 are provided with a second serrated surface 29 that meshes with the first serrated surface 28.
[0037] By setting the first connecting member 23 and the second connecting member 24, the lock core can be quickly fixed on the profile light starter, and the first serrated surface 28 and the second serrated surface 29 can cooperate to avoid the first connecting plate 25 and the second connecting plate 27 from shifting. In this embodiment, the first connecting plate 25 and the second connecting plate 27 are in contact with the upper and lower side surfaces of the lock housing 1.
[0038] Working principle: through the linkage between the thumbwheel 6 and the lock frame 5, a pair of lock hooks 4 can be driven to pass through the opening 3 to realize the opening and closing action. The transmission is stable and the installation is convenient. The specific working method is: when the sliding door lock core is installed, an installation groove is opened on the side wall where the sliding door contacts the door frame, and the lock shell 1 is just inserted into the installation groove. The thumbwheel 6 is rotated to make the lock frame 5 slide toward the opening 3. When the hook-shaped parts 9 of the two lock hooks 4 abut against the limiting surface 8, the two lock hooks 4 are opened and separated from each other at one end away from the lock frame 5, so that the hook parts 7 of the two lock hooks 4 directly hook the installation groove or indirectly hook the card in the installation groove, thereby improving the firmness of the double hook lock. At this time, the pair of lock hooks 4 are in a locked state matched with the door frame installation groove. When the thumbwheel 6 is reset, the two lock hooks 4 are limited by the size of the opening 3 and gradually retract into the lock shell 1 so that the hook parts 7 gather together. At this time, the pair of lock hooks 4 are in an unlocked state separated from the door frame installation groove.
[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A sliding door lock core, comprising a lock housing (1), a locking cavity (2) being provided in the lock housing (1), and an opening (3) being provided on the lock housing (1) and communicating with the locking cavity (2), a pair of lock hooks (4) being provided at positions of the locking cavity (2) corresponding to the opening (3), characterized in that: A lock frame (5) is slidably arranged in the lock cavity (2) and a dial wheel (6) is rotatably arranged. The dial wheel (6) is meshed with the lock frame (5) for transmission. A pair of lock hooks (4) are hinged to the lock frame (5). The dial wheel (6) is rotated so that the lock frame (5) drives the pair of lock hooks (4) to extend or retract into the lock housing (1). The pair of lock hooks (4) have an open state of extending out of the opening (3) and a gathered state of retracting into the opening (3).
2. The sliding door lock core according to claim 1, characterized in that: A hook portion (7) is provided on the opposite side of the two lock hooks (4). The lock hook (4) extends out of the opening (3) and can abut against a limit surface (8) in the lock housing (1), so that the two hook portions (7) are separated from each other.
3. The sliding door lock core according to claim 2, characterized in that: A hook-shaped portion (9) is arranged on the outer side of one end of the two lock hooks (4) hinged to the lock frame (5) and capable of abutting against a limiting surface (8) to enable the two to open each other. The limiting surface (8) is arranged on the inner wall of the lock housing (1) on one side corresponding to the opening (3).
4. The sliding door lock core according to claim 3, characterized in that: The lock hook (4) is provided with a clearance groove (10) located between the hook-shaped portion (9) and the hook portion (7).
5. The sliding door lock cylinder according to any one of claims 1 to 4, characterized in that: When the two lock hooks (4) are in the unlocked state, the width of the portion located at one end of the opening (3) matches the shape of the opening (3), so that when the two lock hooks (4) are switched from the locked state to the unlocked state, they are limited by the width of the opening (3) and automatically gathered together.
6. The sliding door lock cylinder according to any one of claims 1 to 4, characterized in that: The two lock hooks (4) are each provided with a positioning column (11), the lock frame (5) is provided with a positioning hole (12), the positioning column (11) and the positioning hole (12) are rotatably matched, the lock frame (5) is provided with a limiting column (13) at a hinged position corresponding to the lock hook (4), an installation gap is left between the limiting column (13) and the two lock hooks (4), and a spring sheet (14) is limited in the installation gap, and when the two lock hooks (4) are in a locked state, the spring sheet (14) is compressed and deformed.
7. The sliding door lock core according to claim 6, characterized in that: The two locking hooks (4) are provided with an arc surface (15) at one end facing the spring sheet (14), and the spring sheet (14) includes two arc-shaped sheets (16) connected to each other and in contact with the arc surfaces (15) of the two locking hooks (4), and the limiting column (13) is located on the back side of the connection between the two arc-shaped sheets (16).
8. The sliding door lock core according to claim 1, characterized in that: A rack portion (17) is integrally formed with or fixed to one end of the lock frame (5) relative to the lock hook (4), and a plurality of toothed portions (18) meshing with the rack portion (17) for transmission are arranged on the dial wheel (6).
9. The sliding door lock core according to claim 1 or 8, characterized in that: The thumbwheel (6) is provided with a positioning pin (19), and the lock housing (1) is provided with an arc-shaped positioning groove (20) adapted to the rotation path of the positioning pin (19). When the positioning pin (19) is at two ends of the arc-shaped positioning groove (20), it corresponds to a locked state and an unlocked state of a pair of lock hooks (4) respectively. An elastic member (21) is provided at a position corresponding to the positioning pin (19) in the lock housing (1), and the positioning pin (19) always abuts against the elastic member (21). When the positioning pin (19) is at two ends of the arc-shaped positioning groove (20), it is pressed against the inner wall of the positioning groove under the action of the spring sheet (14).
10. The sliding door lock core according to claim 1, characterized in that: The lock housing (1) is provided with a through hole (22) in a vertical direction, and a first connecting member (23) and a second connecting member (24) are provided at the through hole (22) and are matched with each other. The first connecting member (23) and the second connecting member (24) are located at the upper and lower sides of the lock housing (1), and the first connecting member (23) includes a first connecting plate (25) and a connecting column (26) passing through the through hole (22), and the second connecting member (24) includes a second connecting plate (27), and the second connecting plate (27) is threadedly matched with the connecting column (26) through bolts, and the first connecting plate (25) and the second connecting plate (27) are provided with a first serrated surface (28) on one side close to each other, and the upper and lower side surfaces of the lock housing (1) are provided with a second serrated surface (29) meshing with the first serrated surface (28).