Drawer lock
By setting the moving part on the lock tongue and directly driving it by the lock core, combined with the limit of the unlocking plate and the lock tongue by the mounting plate, the problem of unstable transmission of the drawer lock is solved, and a more stable unlocking effect is achieved.
Patent Information
- Application Number
- CN202422398127.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The transmission structure of existing drawer locks is complex and unstable, and it is prone to jamming, resulting in failure of unlocking.
The moving part is directly set on the lock tongue, and the lock core directly drives the lock tongue to reduce the intermediate transmission parts, and limit the driving structure of the unlocking plate and the lock tongue through the installation plate to ensure transmission stability.
It reduces the situation of stuck during the transmission process, avoids unlocking failure, and improves the stability and reliability of the transmission.
Smart Images
Figure CN223164385U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of locks, in particular to a drawer lock. Background Art
[0002] The most widely used drawer lock is a mechanical lock tongue telescopic lock. The lock core lock hole part is usually cylindrical. When installing, a cylindrical through hole needs to be dug in the drawer panel for the lock core lock hole part. The lock body is left inside the drawer panel, and the cylindrical lock core lock hole part is inserted into the cylindrical through hole from the inside of the drawer panel outward, so that the lock hole is exposed to the external space of the drawer panel for people to open the drawer lock.
[0003] At present, most drawer locks with mechanical locks can only be unlocked by keys. The key unlocks the lock core, and the lock core drives the lock tongue through a transmission structure to retract the lock tongue into the lock body for unlocking.
[0004] However, due to the complexity of the transmission structure and unstable installation, it is extremely easy to have accidents such as unstable transmission and jamming, resulting in the inability to unlock smoothly, bringing great inconvenience to consumers. Content of the Utility Model
[0005] In order to solve the above problems existing in the prior art, the utility model provides a drawer lock.
[0006] The above problems of the utility model are solved by the following technical solutions:
[0007] A drawer lock includes
[0008] A lock body with a lock tongue movably arranged, the lock tongue can move linearly along a first straight line, extend out of the lock body to lock with an external lock groove, or retract into the lock body to unlock;
[0009] A mechanical lock, at least including a lock core rotating around a first axis, the mechanical lock is unlocked by a mechanical key, and the lock core rotates to drive the lock tongue;
[0010] An unlocking plate is connected to the lock core in a limiting manner, a driving part is arranged on the unlocking plate, and a driven part corresponding to the driving part is arranged on the lock tongue;
[0011] The rotation of the lock core drives the unlocking plate to rotate, and the driving part drives the driven part to retract the lock tongue into the lock body.
[0012] The further setting of the above technical solution is: the driving part is a driving convex protruding from the end face of the unlocking plate, and the driving convex is eccentrically arranged relative to the first axis;
[0013] The driven part is a driven groove arranged on the end face of the lock tongue.
[0014] The further setting of the above technical solution is that the driven groove is formed by being surrounded by a surrounding rib convexly provided on the lock tongue, and the upper end of the driven groove is open.
[0015] The further setting of the above technical solution is that a return spring is arranged inside the lock body, and the return spring abuts against the lower end of the lock tongue.
[0016] The further setting of the above technical solution is that an installation plate is further arranged inside the lock body, and a limit sliding groove capable of accommodating the surrounding rib to slide up and down in a straight line is arranged on the installation plate.
[0017] The further setting of the above technical solution is that the installation plate includes a front plate and a back plate, and the limit sliding groove is arranged on the back plate;
[0018] A limit hollow-out matching with the unlocking plate is arranged on the front plate.
[0019] The further setting of the above technical solution is that the limit sliding groove and the limit hollow-out are arranged in an overlapping manner front and back.
[0020] The further setting of the above technical solution is that an installation part is arranged on the panel of the lock body, the mechanical lock is embedded in the installation part, and the keyhole of the mechanical lock is located on the surface of the installation part.
[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0022] 1. The driven part is directly arranged on the lock tongue, and the lock core directly drives the lock tongue, reducing the setting of intermediate transmission components, thereby reducing the situation of jamming during the transmission process and avoiding the possibility of unlocking failure;
[0023] 2. By arranging the installation plate, the position of the unlocking plate is limited, and at the same time, the driving structure between the lock tongue and the unlocking plate is limited, ensuring the stability of the transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is an exploded structural schematic diagram of the present utility model.
[0025] Figure 2 It is an exploded structural schematic diagram of the lock tongue and the unlocking plate.
[0026] Figure 3 It is an exploded structural schematic diagram of the lock tongue and the installation plate.
[0027] Figure 4 It is a structural schematic diagram of the installation plate.
[0028] Labels on the attached drawings: 100, lock body; 101, avoidance groove; 110, mounting plate; 110.1, front plate; 110.2, back plate; 113, limit sliding groove; 114, limit hollow-out;
[0029] 200, lock tongue; 201, notch; 202, driven groove; 210, surrounding rib;
[0030] 400, lock core;
[0031] 600, installation part;
[0032] 800, unlocking plate; 810, driving convex;
[0033] 2, return spring; a, first straight line; b, first axis. Detailed implementation mode
[0034] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following combines the attached drawings and preferred embodiments to detail the specific implementation mode, structure, features and their effects of the present utility model as follows.
[0035] As Figures 1-4 shown, this embodiment discloses a drawer lock.
[0036] A drawer lock includes
[0037] a lock body 100 with a lock tongue 200 movably arranged, the lock tongue 200 can move linearly along the first straight line a, extend out of the lock body 100 to lock with an external lock groove, or retract into the lock body 100 to unlock;
[0038] a mechanical lock, at least including a lock core 400 that rotates around the first axis b, the mechanical lock is unlocked by a key, and the lock core 400 is rotated to drive the lock tongue 200;
[0039] a unlocking plate 800 is connected to the lock core 400 in a limited way, a driving part is arranged on the unlocking plate 800, and a driven part corresponding to the driving part is arranged on the lock tongue 200;
[0040] When the lock core 400 rotates, it drives the unlocking plate 800 to rotate, and the driving part drives the driven part, so that the lock tongue 200 retracts into the lock body 100.
[0041] The above is the basic scheme of this embodiment.
[0042] Specifically referring to Figure 1 shown, when in use, the lock body 100 is fixedly installed on the drawer, and when the lock tongue 200 extends out of the lock body 100, it also extends to the end face of the drawer and locks with the lock groove on the main body such as a table cabinet, so that the drawer cannot be pulled out relative to the main body, thereby making the drawer private.
[0043] When it is necessary to open the drawer, a key can be used to unlock the mechanical lock. The mechanical lock drives the lock tongue 200 to move through the lock core 400, so that the lock tongue 200 retracts into the lock body 100, thereby unlocking from the lock groove;
[0044] The mechanical lock includes a lock core 400. A lock piece is arranged inside the lock core 400. The lock piece retracts into the lock core 400, so that the lock core 400 can rotate. After unlocking, the mechanical lock is rotated. The lock core 400 drives the unlocking plate 800 to rotate together. The driving part on the unlocking plate 800 rotates accordingly, generating a drive on the driven part on the lock tongue 200, thereby driving the lock tongue 200 to move linearly and retract into the lock body 100;
[0045] After the lock core 400 is rotated and reset, the driven part is not affected by an external force, and the lock tongue 200 is reset and extends out of the lock body 100;
[0046] The lock core 400 in the mechanical lock can be locked with the installation groove on the lock body 100, or a lock shell can be provided to lock with the lock core 400.
[0047] In this embodiment, the structure and unlocking method of the mechanical lock are the same as those of the mechanical lock in the prior art, and will not be elaborated here.
[0048] The driven part is directly arranged on the lock tongue 200, and the lock core 400 directly drives the lock tongue 200, reducing the setting of intermediate transmission components, thereby reducing the situation of jamming during the transmission process and avoiding the possibility of unlocking failure.
[0049] In this embodiment, the first straight line a is the movement path of the lock tongue 200, which is set along the length of the lock tongue; the first axis b is the central axis of the lock core, and the first straight line a and the first axis b are perpendicular.
[0050] In this embodiment, a limiting convex part is provided at the tail of the lock core 400, and a limiting groove cooperating with the limiting convex part is provided on the unlocking plate 800. The limiting convex part and the limiting groove cooperate to form a limiting connection, and when the lock core 400 rotates, it drives the unlocking plate 800 to rotate together.
[0051] In other embodiments, other limiting structures can also be provided between the lock core 400 and the unlocking plate 800 for connection.
[0052] Preferably, the driving part is a driving convex 810 protruding from the end face of the unlocking plate 800, and the driving convex 810 is eccentrically arranged relative to the first axis b;
[0053] The driven part is a driven groove 202 provided on the end face of the lock tongue 200.
[0054] The key unlocks the lock cylinder 400. When the lock cylinder 400 is rotated, the unlocking plate 800 rotates around the first axis b at the same time. Since the driving convex 810 is eccentrically arranged relative to the first axis b, the driving convex 810 rotates around the first axis b, thus generating a displacement in the direction of the first straight line a. When the driving convex 810 contacts the groove wall of the driven groove 202 and moves downward, a downward driving force is generated on the groove wall, thereby pushing the driven part downward, and the lock tongue 200 retracts.
[0055] Wherein, the driven part is a driven groove 202 formed by surrounding ribs 210 protruding on the lock tongue 200.
[0056] Specifically refer to Figure 2 As shown, the upper end of the driven groove 202 is open. When the lock cylinder 400 is reset, the driving part moves out from the opening of the driven groove 202 and does not contact the surrounding rib 210, so that the surrounding rib 210 cannot be pushed, and the lock tongue 200 can be reset under the action of other external forces.
[0057] In this embodiment, a return spring 2 is arranged at the lower end of the lock tongue 200. The return spring 2 abuts against the inner end surface of the lock tongue 200 and the lock body 100. When the mechanical lock or the electronic lock is reset, the return spring 2 pushes up the lock tongue 200, so that the lock tongue 200 extends out of the lock body 100.
[0058] In this embodiment, to ensure the stable installation of the unlocking plate 800, an installation plate 110 is further provided in the lock body 100, and a limiting sliding groove 113 capable of accommodating the surrounding rib 210 to slide up and down in a straight line is provided on the installation plate 110.
[0059] Specifically refer to Figure 3 As shown, the groove width of the limiting sliding groove 113 is the same as the width of the surrounding rib 210 in the horizontal direction, and the surrounding rib 210 can slide up and down in the limiting sliding groove 113.
[0060] In this embodiment, the installation plate 110 includes a front plate 110.1 and a back plate 110.2, and the limiting sliding groove 113 is arranged on the back plate;
[0061] A limiting hollow 114 cooperating with the unlocking plate 800 is provided on the front plate 110.1.
[0062] Specifically refer to Figure 4 As shown, in this embodiment, there is a space between the back plate 110.2 and the installation plate 110.1. At the same time, the limiting sliding groove 113 is arranged on the back plate 110.2, and the limiting hollow 114 is arranged on the installation plate 110.1.
[0063] Preferably, the limiting sliding groove 113 and the limiting hollow 114 are arranged overlappingly front and back.
[0064] During installation, the unlocking plate 800 is embedded into the limiting hollow 114, and its rear end face abuts against the back plate 120; the surrounding rib 210 on the locking tongue 200 is embedded into the limiting sliding groove 113, and the driving protrusion extends into the driven groove 202 to complete the connection.
[0065] Based on the above settings, the surrounding rib 210 can only slide within the range of the limiting sliding groove 113, while the unlocking plate 800 can only rotate within the range of the limiting hollow 114, thus ensuring that the driving protrusion can always be located within the driven groove 202.
[0066] In this embodiment, an installation part 600 is provided on the panel of the lock body 100. The mechanical lock is embedded into the installation part 600, and the keyhole of the mechanical lock is located on the surface of the installation part 600.
[0067] Specifically referring to Figure 1 As shown, the installation part 600 is a protruding part, and it protrudes from the surface of the lock body 100. When the intelligent lock is installed on the drawer, the lock body 100 is located inside the outer panel of the drawer, and the installation part 600 is embedded into the outer panel of the drawer, only exposing the end face of the installation part 600.
[0068] In this embodiment, the keyhole of the mechanical lock is arranged on the surface of the installation part 600, that is, the mechanical lock, the installation part 600 and the end face of the outer panel of the drawer form a flat surface, ensuring the aesthetics of the drawer.
[0069] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments with equivalent changes, but as long as it does not depart from the technical content of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. A drawer lock, comprising: a lock body (100) movably provided with a lock tongue (200), the lock tongue (200) being capable of linearly moving along a first straight line (a), extending out of the lock body (100) to lock with an external lock groove, or retracting into the lock body (100) to unlock; a mechanical lock, at least including a lock core (400) rotating around a first axis (b), the mechanical lock being unlocked by a mechanical key, and rotating the lock core (400) to drive the lock tongue (200); characterized in that: a release plate (800) is connected to the lock core (400) in a limited manner, a driving part is provided on the release plate (800), and a driven part corresponding to the driving part is provided on the lock tongue (200); when the lock core (400) rotates, it drives the release plate (800) to rotate, and the driving part drives the driven part, so that the lock tongue (200) retracts into the lock body (100).
2. The drawer lock according to claim 1, characterized in that: The driving part is a driving protrusion (810) protruding from the end face of the release plate (800), and the driving protrusion (810) is eccentrically arranged relative to the first axis (b); The driven part is a driven groove (202) provided on the end face of the lock tongue (200).
3. The drawer lock according to claim 2, wherein: The driven groove (202) is formed by being surrounded by a surrounding rib (210) protruding from the lock tongue (200), and the upper end of the driven groove (202) is open.
4. The drawer lock according to any one of claims 1 to 3, characterized in that: A return spring (2) is arranged in the lock body (100), and the return spring (2) abuts against the lower end of the lock tongue (200).
5. The drawer lock according to claim 3, characterized in that: An installation plate (110) is further provided in the lock body (100), and a limit sliding groove (113) capable of accommodating the surrounding rib (210) to slide linearly up and down is provided on the installation plate (110).
6. The drawer lock according to claim 5, characterized in that: The installation plate (110) includes a front plate (110.1) and a back plate (110.2), and the limit sliding groove (113) is arranged on the back plate (110.2); A limit hollow (114) cooperating with the release plate (800) is provided on the front plate (110.1).
7. The drawer lock according to claim 6, characterized in that: The limit sliding groove (113) and the limit hollow (114) are arranged in an overlapping manner front and back.
8. The drawer lock according to claim 1, wherein: An installation part (600) is provided on the panel of the lock body (100), the mechanical lock is embedded in the installation part (600), and the keyhole of the mechanical lock is located on the surface of the installation part (600).