Neodymium magnetic drive springless silent lock

Abstract

The application discloses a neodymium magnetic drive spring-free silent lock, which is characterized by comprising a lock shell, a fixing plate arranged at one end of the lock shell, a lock cover arranged at one side of the lock shell, a fixing piece arranged in the lock shell through a screw, a connecting body, a first limiting rod and a second limiting rod, wherein the connecting body is connected with the lock shell, the first limiting rod and the second limiting rod are symmetrically arranged at one end of the connecting body away from the fixing plate, transverse rods are arranged at one end of the first limiting rod and the second limiting rod away from the connecting body, an execution cam and a lock bolt are arranged in the lock shell, limiting protrusions and a first connecting hole are arranged at two sides of the execution cam, a locking position positioning protrusion and an unlocking position positioning protrusion are further arranged at one side of the execution cam and between the limiting protrusions and the first connecting hole, a frame rod is connected with the first connecting hole at one end, and the other end of the frame rod is connected with the lock bolt. The application has the advantages of simple and reasonable structure, locking and unlocking of the lock, no need of spring, simple structure, high stability and low noise.

Description

Technical Field

[0001] This invention relates to the field of silent lock technology, specifically to a neodymium magnet driven springless silent lock. Background Technology

[0002] Currently, locks generally use either compression springs or return springs. Regardless of the form, they all rely on spring structures for auxiliary drive. This structure has poor stability, is difficult to install, and is prone to noise during use. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Summary of the Invention

[0003] The purpose of this invention is to provide a neodymium magnet driven springless silent lock. The actuating cam is provided with a locking position positioning protrusion and an unlocking position positioning protrusion to cooperate with the crossbars of the first limit rod and the second limit rod. The actuating cam is connected to the bolt through a bracket rod to realize the locking and unlocking of the lock. No spring needs to be installed, the structure is simpler and the stability is stronger. Due to the cooperation of the locking position positioning protrusion and the unlocking position positioning protrusion with the crossbars of the first limit rod and the second limit rod, the noise is greatly reduced during the rotation of the actuating cam. Furthermore, due to the limiting effect, the bolt will not directly hit the inner wall of the lock shell, further ensuring that no sound is emitted during the switching process. The structure is simpler and easier to install and disassemble than the traditional structure, thus solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a neodymium magnet driven springless silent lock, comprising a housing and a linkage mechanism;

[0005] The housing includes a lock shell, a lock cover, and a fixing member. A fixing plate is provided at one end of the lock shell, and a lock tongue hole is provided through the middle of the fixing plate. A lock cover is provided on one side of the lock shell. The fixing member is installed inside the lock shell by screws. The fixing member includes a connecting body, a first limiting rod, and a second limiting rod. The connecting body is connected to the lock shell. The first limiting rod and the second limiting rod are symmetrically provided at the end of the connecting body away from the fixing plate. A crossbar is provided at the end of the first limiting rod and the second limiting rod away from the connecting body.

[0006] The linkage mechanism includes an actuating cam, a support rod, and a latch. The actuating cam and the latch are both disposed within the lock housing. The actuating cam has a limiting protrusion and a first connecting hole on both sides. On one side of the actuating cam, between the limiting protrusion and the first connecting hole, there is also a locking position positioning protrusion and an unlocking position positioning protrusion. One end of the support rod is connected to the first connecting hole, and the other end of the support rod is connected to the latch. The latch includes a bolt and a push-pull rod. The push-pull rod is symmetrically disposed on both sides of the bolt. The end of the push-pull rod away from the flat bolt is connected to the support rod. The bolt is movably disposed within the bolt hole.

[0007] Preferably, the present invention provides a neodymium magnet driven springless silent lock, wherein the lock shell and the lock cover are both provided with an actuating cam positioning hole and a fixing hole for a fixing component. The two ends of the actuating cam respectively cooperate with the actuating cam positioning hole in the lock shell and the actuating cam positioning hole in the lock cover. The fixing component cooperates with the fixing hole for a fixing component and is connected by screws to realize the installation of the actuating cam and the fixing component.

[0008] Preferably, the present invention provides a neodymium magnet driven springless silent lock, wherein the interior of the actuating cam is provided with a square hole extending axially to cooperate with a square rod, thereby realizing rotation.

[0009] Preferably, the present invention provides a neodymium magnet driven springless silent lock, wherein a support is provided on the inner side of the push-pull rod near the first connecting hole of the actuating cam, the support is provided with a second connecting hole, and the end of the frame rod away from the actuating cam is connected to the second connecting hole to achieve connection with the frame rod.

[0010] Preferably, the present invention provides a neodymium magnet driven springless silent lock, wherein the frame rod adopts a U-shaped structure to connect with the actuating cam and the push-pull rod respectively.

[0011] Preferably, the present invention provides a neodymium magnet driven springless silent lock, wherein the inner walls of the lock shell and the lock cover are provided with a first limiting block to cooperate with a first limiting rod, and the interior of the lock shell is also provided with a second limiting block and a third limiting block. The second limiting block and the third limiting block respectively cooperate with the extension section of the limiting protrusion to limit the rotation of the actuating cam. The second limiting block is engaged with the crossbar at one end of the second limiting rod to prevent the fixing part from rotating, thereby ensuring the accuracy of the locking and unlocking positions achieved by the actuating cam.

[0012] Preferably, the present invention provides a neodymium magnet driven springless silent lock, wherein the locking position positioning protrusion and the unlocking position positioning protrusion respectively cooperate with the gap between the end crossbars of the first limiting rod and the second limiting rod to realize the positioning of the locking position positioning protrusion and the unlocking position positioning protrusion.

[0013] Preferably, the present invention provides a neodymium magnet driven springless silent lock, wherein the four corners of the lock shell are respectively provided with slots, and the four corners of the lock cover are respectively provided with buckles. The buckles correspond one-to-one with the slots and cooperate with each other, which facilitates the connection and disassembly between the lock cover and the lock shell.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The actuating cam is equipped with a locking position positioning protrusion and an unlocking position positioning protrusion to cooperate with the crossbars of the first limit rod and the second limit rod. The actuating cam is connected to the latch through the frame rod to realize the locking and unlocking of the lock. No spring needs to be installed, the structure is simpler and the stability is stronger.

[0016] (2) Due to the combination of the locking position positioning protrusion and the unlocking position positioning protrusion with the crossbars of the first limit rod and the second limit rod, the noise is greatly reduced during the rotation of the execution cam. Furthermore, due to the limiting effect, the lock tongue will not directly hit the inner wall of the lock shell, further ensuring that no sound is made during the conversion process.

[0017] (3) The structure is simpler and easier to install and disassemble than the traditional structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention (lock cover not shown);

[0019] Figure 2 This is a schematic diagram of the exploded structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the external structure of the present invention.

[0021] In the diagram: 1. Lock housing; 2. Lock cover; 3. Fixing component; 4. Fixing plate; 5. Actuating cam; 6. Frame rod; 7. Lock bolt; 8. Limiting protrusion; 9. First connecting hole; 10. Locking position positioning protrusion; 11. Unlocking position positioning protrusion; 12. Actuating cam positioning hole; 13. Fixing component fixing hole; 14. First limiting block; 15. Second limiting block; 16. Third limiting block; 17. Slot; 18. Buckle; 301. Connecting body; 302. First limiting rod; 303. Second limiting rod; 304. Crossbar; 701. Lock tongue; 702. Push-pull rod; 703. Support; 704. Second connecting hole. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that in the description of this invention, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0024] Please see Figure 1-3This invention provides a technical solution: a neodymium magnet driven springless silent lock, including a housing and a linkage mechanism; the housing includes a lock shell 1, a lock cover 2, and a fixing member 3. A fixing plate 4 is provided at one end of the lock shell 1, and a lock tongue hole is provided through the middle of the fixing plate 4. A lock cover 2 is provided on one side of the lock shell 1. The four corners of the lock shell 1 are respectively provided with slots 17, and the four corners of the lock cover 2 are respectively provided with buckles 18. The buckles 18 correspond one-to-one with the slots 17 and cooperate with each other. The fixing member 3 is set inside the lock shell 1 by screws. The fixing member 3 includes a connecting body 301, a first limiting rod 302, and a second limiting rod 303. The connecting body 301 is connected to the lock shell 1 and is located away from the fixing member 303. A first limiting rod 302 and a second limiting rod 303 are symmetrically arranged at one end of the fixed plate 4. A crossbar 304 is provided at the end of the first limiting rod 302 and the second limiting rod 303 away from the connecting body 301. A first limiting block 14 is provided on the inner wall of the lock shell 1 and the lock cover 2 to cooperate with the first limiting rod 302. A second limiting block 15 and a third limiting block 16 are also provided inside the lock shell 1. The second limiting block 15 and the third limiting block 16 respectively cooperate with the extension section of the limiting protrusion 8. The second limiting block 15 is engaged with the crossbar 304 at one end of the second limiting rod 303. The locking position positioning protrusion 10 and the unlocking position positioning protrusion 11 are respectively engaged with the first limiting rod 302 and the second limiting rod. The gap between the end crossbars 304 and 303 is matched; the linkage mechanism includes an actuating cam 5, a support rod 6, and a latch 7. The actuating cam 5 and the latch 7 are both located inside the lock housing 1. The actuating cam 5 has a square hole that extends through it axially. The lock housing 1 and the lock cover 2 both have actuating cam positioning holes 12 and fixing holes 13. The two ends of the actuating cam 5 are respectively matched with the actuating cam positioning holes 12 in the lock housing 1 and the actuating cam positioning holes 12 in the lock cover 2. The fixing hole 3 is matched with the fixing hole 13 and connected by screws. The actuating cam 5 has a limit protrusion 8 and a first connecting hole 9 on both sides. The actuating cam 5 is located on one side of the limit protrusion 8 and the first connecting hole 9. A locking position positioning protrusion 10 and an unlocking position positioning protrusion 11 are also provided between the connecting holes 9. One end of the support rod 6 is connected to the first connecting hole 9, and the other end of the support rod 6 is connected to the latch 7. The support rod 6 adopts a U-shaped structure. The latch 7 includes a locking tongue 701 and a push-pull rod 702. The push-pull rod 702 is symmetrically arranged on both sides of the locking tongue 701. The end of the push-pull rod 702 away from the flat locking tongue 701 is connected to the support rod 6. The locking tongue 701 is movably arranged in the locking tongue hole. A support 703 is provided on the inner side of the push-pull rod 702 near the end of the first connecting hole 9 opened by the actuating cam 5. The support 703 has a second connecting hole 704. The end of the support rod 6 away from the actuating cam 5 is connected to the second connecting hole 704.

[0025] Installation method and operating principle: Insert the latch 701 at the front end of the latch 7 into the latch hole of the fixing plate 4. Then fix the fixing part 3 to the lock housing 1 with screws, so that the first limiting rod 302 cooperates with the first limiting block 14 of the lock housing 1, and the second limiting rod 303 cooperates with the second limiting block 15 to prevent the fixing part 3 from rotating. Next, install the actuating cam 5 into the lock housing 1, and position the extension of the limiting protrusion 8 between the second limiting block 15 and the third limiting block 16. Then connect the two ends of the bracket 6 to the first connecting hole 9 of the actuating cam 5 and the second connecting hole 704 of the support 703, respectively. Finally, insert each buckle 18 of the lock cover 2 into each slot 17 of the lock housing 1 to complete the installation. In use, insert the square rod into the square hole of the actuating cam 5, and rotate the square rod by the handle (it can be rotated manually or driven by a motor), and the actuating cam 5 will rotate accordingly. When the locking position positioning protrusion 10 is located between the crossbar 304 at the ends of the first limiting rod 302 and the second limiting rod 303, the latch 701 is in the locked position. At this time, the extension of the limiting protrusion 8 is connected to the third limiting block 16. When the unlocking position positioning protrusion 11 is located between the crossbar 304 at the ends of the first limiting rod 302 and the second limiting rod 303, the latch 701 is in the unlocked position. At this time, the extension of the limiting protrusion 8 is connected to the second limiting block 15. The linkage between the actuating cam 5 and the latch 7 is achieved through the bracket 6. The present invention has a reasonable structure. The actuating cam 5 is provided with a locking position positioning protrusion 10 and an unlocking position positioning protrusion 11 to cooperate with the crossbar 304 of the first limiting rod 302 and the second limiting rod 303. The actuating cam 5 is connected to the latch 7 through the bracket 6 to realize the locking and unlocking of the lock. There is no need to install a spring, the structure is simpler, and the stability is stronger. Because the locking position positioning protrusion 10 and the unlocking position positioning protrusion 11 are used in conjunction with the crossbar 304 of the first limit rod 302 and the second limit rod 303, the noise is greatly reduced during the rotation of the execution cam 5. Furthermore, due to the limiting effect, the lock tongue 701 will not directly hit the inner wall of the lock shell 1, further ensuring that no sound is made during the conversion process. The structure is simpler and easier to install and disassemble than the traditional structure.

[0026] Any aspects of this invention not described in detail are well-known to those skilled in the art.

[0027] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A neodymium magnet driven springless silent lock, characterized in that: Includes the housing and linkage mechanism; The housing includes a lock shell (1), a lock cover (2), and a fixing member (3). A fixing plate (4) is provided at one end of the lock shell (1). A lock tongue hole is provided through the middle of the fixing plate (4). A lock cover (2) is provided on one side of the lock shell (1). The fixing member (3) is installed inside the lock shell (1) by screws. The fixing member (3) includes a connecting body (301), a first limiting rod (302), and a second limiting rod (303). The connecting body (301) is connected to the lock shell (1). The first limiting rod (302) and the second limiting rod (303) are symmetrically provided at the end of the connecting body (301) away from the fixing plate (4). A crossbar (304) is provided at the end of the first limiting rod (302) and the second limiting rod (303) away from the connecting body (301). The linkage mechanism includes an execution cam (5), a support rod (6), and a latch (7). The execution cam (5) and the latch (7) are both located inside the lock housing (1). The execution cam (5) has a limit protrusion (8) and a first connecting hole (9) on both sides. The execution cam (5) also has a locking position positioning protrusion (10) and an unlocking position positioning protrusion (11) on one side and between the limit protrusion (8) and the first connecting hole (9). One end of the support rod (6) is connected to the first connecting hole (9), and the other end of the support rod (6) is connected to the latch (7). The latch (7) includes a bolt (701) and a push-pull rod (702). The bolt (701) has push-pull rods (702) symmetrically arranged on both sides. The push-pull rod (702) is connected to the support rod (6) at the end away from the flat bolt (701). The bolt (701) is movably located in the bolt hole. The locking position positioning protrusion (10) and the unlocking position positioning protrusion (11) respectively cooperate with the gap between the end crossbar (304) between the first limiting rod (302) and the second limiting rod (303).

2. The neodymium magnet driven springless silent lock according to claim 1, characterized in that: Both the lock housing (1) and the lock cover (2) are provided with an execution cam positioning hole (12) and a fixing hole (13). The two ends of the execution cam (5) are respectively engaged with the execution cam positioning hole (12) of the lock housing (1) and the execution cam positioning hole (12) of the lock cover (2). The fixing hole (3) is engaged with the fixing hole (13) and connected by screws.

3. A neodymium magnet driven springless silent lock according to claim 1, characterized in that: The actuating cam (5) has a square hole that extends through the interior along the axial direction.

4. A neodymium magnet driven springless silent lock according to claim 1, characterized in that: A support (703) is provided on the inner side of the push-pull rod (702) near the first connecting hole (9) of the actuating cam (5). The support (703) has a second connecting hole (704). The end of the bracket (6) away from the actuating cam (5) is connected to the second connecting hole (704).

5. A neodymium magnet driven springless silent lock according to claim 1, characterized in that: The support pole (6) adopts a U-shaped structure.

6. A neodymium magnet driven springless silent lock according to claim 1, characterized in that: The inner walls of the lock housing (1) and the lock cover (2) are provided with a first limiting block (14) to cooperate with the first limiting rod (302). The lock housing (1) is also provided with a second limiting block (15) and a third limiting block (16). The second limiting block (15) and the third limiting block (16) cooperate with the extension of the limiting protrusion (8) respectively. The second limiting block (15) is engaged with the crossbar (304) at one end of the second limiting rod (303).

7. A neodymium magnet driven springless silent lock according to claim 1, characterized in that: The lock housing (1) has slots (17) at its four corners, and the lock cover (2) has buckles (18) at its four corners. The buckles (18) correspond to the slots (17) and cooperate with each other.

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