Push button lock

Abstract

The utility model discloses a press type lock, be applicable to door cabinet, including lock casing, telescopic press switch and with press switch transmission cooperation, the mechanical lock body mechanism of locking external component. Mechanical lock body mechanism contains rotatable rotary lock body in casing, the lock piece of its rear end fixed connection, is equipped with elastic transmission part ( makes press switch always has the tendency of protruding forward) between rotary lock body and press switch, and the both respectively are equipped with drive, force end surface. When press switch moves back, drive end surface bears force end surface, promotes rotary lock body and lock piece reverse rotation, and elastic transmission part contracts, after releasing, elastic transmission part makes press switch move forward, and end surface separates, promotes the both positive rotation simultaneously. The lock can be telescopic ( retracts locking, extends unlocking), can hide press switch, reduces space occupation, reduces damage risk, improves door cabinet aesthetic property.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a push-button lock for door cabinets, which is particularly suitable for furniture hardware scenarios that require convenient opening, reliable locking and intelligent control. Background Technology

[0002] In the furniture hardware industry, push-button locks are widely used for locking drawers, cabinet doors, and other components due to their ease of operation and the fact that they do not require an additional key. Existing push-button locks are mainly divided into two categories: purely mechanical structures and structures combining mechanical and electronic controls. However, in practical use, the following technical shortcomings still exist:

[0003] 1. In current applications of door and cabinet locks, traditional locks typically have fixed switch components that cannot be extended or retracted. This fixed structure presents several inconveniences in practical use. Firstly, the protruding switch components are easily bumped during daily activities, potentially causing damage and posing safety hazards. Secondly, in scenarios with high space requirements, fixed switch components occupy extra space, affecting the overall aesthetics and space utilization of the door and cabinet.

[0004] 2. Mechanical transmission jamming and short service life: Most existing purely mechanical push-button locks use rigid protrusions and grooves for transmission. There is no buffer structure between the push-button switch and the lock body. When pressing, uneven force can easily cause the protrusion to jam or wear. After long-term use, the transmission accuracy decreases, and problems such as "cannot be pressed" or "cannot be locked" may even occur. At the same time, the axial limit of the lock body often relies on a simple stepped structure. During the pressing process, the lock body is prone to axial movement, which further aggravates the wear of the transmission components.

[0005] 3. Poor reliability of electronic locking: While mechanical-electronic push-button locks with no position feedback mechanism include an electronic locking system, the movement of the locking lever lacks effective monitoring. When the motor drives the locking lever, it's impossible to confirm whether it's fully inserted or withdrawn from the limit slot of the push-button switch. This can lead to "false locking" (the locking lever is not fully inserted, but the push-button switch can still move) or "false unlocking" (the locking lever is not withdrawn, and the push-button switch cannot move). This problem is particularly pronounced during voltage fluctuations or changes in motor load.

[0006] 4. Limited function of elastic components and poor reset effect: The elastic components (such as springs) of existing push-button locks are only used for the reset of the push-button switch. The reset of the lock body depends on the reaction force between the lock plate and the external components, which leads to the lock body not resetting in time or completely. Especially when the external components (such as drawers) are closed with less force, the lock plate cannot return to its original position completely, affecting the locking effect next time.

[0007] To address the aforementioned shortcomings, there is an urgent need for a push-button lock that offers smooth transmission, reliable locking, precise positioning, and combines mechanical and electronic control functions, in order to solve the problems of jamming, wear, and low reliability in existing technologies. Summary of the Invention

[0008] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides a push-button lock.

[0009] The technical solution of this utility model to solve its technical problem is: a push-button lock, comprising:

[0010] Lock housing, which can be installed onto the door cabinet body;

[0011] A push-button switch, which is retractably mounted on the lock housing;

[0012] A mechanical lock mechanism is used to lock external components, and the mechanical lock mechanism forms a transmission cooperation with the push switch;

[0013] The mechanical lock body mechanism includes a rotary lock body and a lock plate. The rotary lock body is rotatably disposed inside the lock housing, and the lock plate is fixedly connected to the rear end of the rotary lock body.

[0014] An elastic transmission element is provided between the front end of the rotary lock body and the push switch. The elastic transmission element acts on the push switch so that the push switch always has a forward extension tendency.

[0015] The rear end of the push switch is provided with a drive end face, and the front end of the rotary lock body is provided with a force-receiving end face;

[0016] When the user controls the push switch to move backward in a straight line, the driving end face abuts against the force-bearing end face and drives the rotary lock body to rotate in the opposite direction. In turn, the rotary lock body drives the lock plate to rotate in the opposite direction, and the elastic transmission component contracts under force.

[0017] When the user releases the push switch, the push switch moves forward in a straight line under the action of the elastic transmission component, and the driving end face separates from the force-bearing end face; and the elastic transmission component applies rotational force to the rotary lock body, so that the rotary lock body rotates in the forward direction, and then the rotary lock body drives the lock plate to rotate in the forward direction.

[0018] In some preferred embodiments of this utility model, the push-button lock further includes:

[0019] A control circuit board is disposed in the lock housing;

[0020] An electric control switch is disposed on the lock housing and is electrically connected to the control circuit board.

[0021] An electrically controlled lock body mechanism is used to lock / release a mechanical lock body mechanism. The electrically controlled lock body mechanism is installed inside the lock housing and is electrically connected to the control circuit board.

[0022] In a specific embodiment, the electronically controlled lock body mechanism includes a motor, a locking rod, and a transmission gear assembly that is connected between the motor and the locking rod. The push switch has a limit groove.

[0023] When the locking rod is inserted into the limiting groove, the electronic lock body mechanism and the push switch form a structural interference to restrict the push switch from extending and retracting.

[0024] When the locking rod is retracted outside the limiting groove, the structural interference between the electronic lock body mechanism and the push switch is released, and the push switch can perform telescopic movement.

[0025] In a preferred embodiment, the locking lever also includes an optical positioning sensor, the locking lever has a position feedback section, the optical positioning sensor is electrically connected to the control circuit board, and the optical positioning sensor is used to detect the movement position of the position feedback section.

[0026] In another preferred embodiment, the electronically controlled lock body mechanism further includes a position monitoring sensor, the push switch has a position feedback element, the position monitoring sensor is electrically connected to the control circuit board, and the position monitoring sensor is used to detect the movement position of the position feedback element.

[0027] In a specific embodiment of this utility model, the driving end face has a first protruding point and a first recessed point. One side of the first protruding point is connected to the first recessed point through a first arc-shaped section, and the other side is connected to the first recessed point through a first straight section.

[0028] The force-bearing end face has a second protruding point and a second recessed point. One side of the second protruding point is connected to the second recessed point through a second arc-shaped section, and the other side is connected to the second recessed point through a second straight section.

[0029] When the push switch is extended, the first protruding point and the second protruding point are positioned relative to each other along the extension and retraction direction of the push switch;

[0030] When the push switch retracts, the first protruding point and the second recessed point are aligned along the extension and retraction direction of the push switch.

[0031] In one specific embodiment of this utility model, the mechanical lock body mechanism includes a fixed sleeve, the fixed sleeve being fixedly connected to the lock housing, and the rotating lock body extending into the fixed sleeve.

[0032] The fixed sleeve has an opening at its rear end, and the rotary lock body has a connecting part at its rear end. The connecting part protrudes through the opening to the outside of the fixed sleeve and is connected to the lock plate.

[0033] The edge of the opening extends inward to form a limiting stop, which abuts against the rotary lock body and forms a limiting engagement to restrict the rotary lock body from moving backward.

[0034] Furthermore, a rotation limiting boss is provided on the limiting stop edge, and a rotation limiting block is provided at the rear end of the rotating lock body. The rotation limiting block can abut against the rotation limiting boss and form an anti-rotation engagement.

[0035] More specifically, the front end of the lock housing has a through hole, and the push switch is disposed in the through hole and can extend forward or retract backward along the through hole;

[0036] The inner wall of the through hole is provided with a guide block, and the outer wall of the push switch is provided with a linear guide groove distributed along the extension and retraction direction. The guide block is inserted into the linear guide groove so that the push switch moves in a straight line when it extends and retracts.

[0037] Optionally, the elastic transmission component is a multi-directional elastic spring.

[0038] The working principle of the mechanical lock mechanism in this utility model is as follows:

[0039] Initial state (unlocked): The push switch remains extended under the action of the multi-directional elastic spring, the force-bearing end face of the rotary lock body ("unlocking point") is in contact with the drive end face of the push switch, and the lock plate is in the "exit from lock groove" state (the door cabinet can be opened / closed freely).

[0040] Press-to-lock: When the user applies pressure to the push switch, the push switch moves backward along the linear guide groove; the drive end face pushes the force-bearing end face of the rotary lock body, causing the rotary lock body to rotate in the forward direction; the lock plate rotates synchronously with the lock body, and its protrusion is embedded into the lock groove of the external component (such as a drawer) to achieve locking; at this time, the push switch is in the retracted state, and the multi-directional elastic spring is in the contracted energy storage state.

[0041] The working principle of the electrically controlled lock body mechanism in this utility model is as follows:

[0042] Locked State: When the push switch is in the retracted (locked) state, the control circuit board receives a signal to drive the motor to rotate forward, which drives the locking rod to move towards the limit groove through the reduction gear set; when the locking rod is inserted into the locking limit groove, the locking rod position sensor detects the position change of the position feedback element; the control circuit board controls the motor to stop, completing the locking state; at this time, the push switch cannot move backward and cannot trigger the unlocking action.

[0043] Lock / Unlock State: When the push switch is in the extended (unlocked) state, the control circuit board drives the motor to reverse, and the locking rod moves towards the limit groove; after the locking rod is inserted into the unlock limit groove, the motor stops, and the unlock state is locked; at this time, the push switch cannot move backward and cannot trigger the locking action.

[0044] Electrical unlocking: When the user triggers the electrical switch again, the circuit board drives the motor to rotate in the opposite direction, and the locking rod exits the current limit slot.

[0045] The beneficial effects of this utility model are as follows:

[0046] 1. Retractable design, retract for locking, extend for unlocking: The rotary switch can switch between extended and retracted states relative to the lock housing. When not in use, the rotary switch can be retracted and hidden inside the lock housing, effectively reducing space occupation, lowering the risk of collision damage, and improving the overall aesthetics of the cabinet.

[0047] 2. Smooth transmission, low wear, and long service life: The multi-directional elastic spring achieves elastic transmission between the push switch and the rotary lock body, avoiding jamming caused by rigid contact; the arc-shaped section design of the drive end face and the force-bearing end face allows the force to be gradually transmitted when pressing, reducing impact wear; at the same time, the multi-directional elastic spring has the functions of push switch reset and lock body active reset, without relying on the reaction force of external components, the reset is more thorough, and further reduces the wear of transmission components.

[0048] 3. High reliability of electronic locking with no risk of "false locking": An added optical positioning sensor monitors the position of the locking rod to ensure that the locking rod is fully inserted into or out of the limit groove, avoiding "false locking" or "false unlocking"; the position monitoring sensor monitors the status of the push switch in real time, which can detect abnormalities such as locking rod failure in a timely manner, and improve the safety of use through fault prompts; and the dual sensor design effectively improves the reliability of electronic locking. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the structure of this utility model (retractable push switch).

[0050] Figure 2 This is a schematic diagram of the structure of this utility model (the push-button switch extends).

[0051] Figure 3 This is an exploded view of this utility model.

[0052] Figure 4 This is a cross-sectional view and a partial enlarged view of the present invention (retractable push switch).

[0053] Figure 5 This is a cross-sectional view and a partial enlarged view of the present invention (the push-button switch extends).

[0054] Figure 6 This is a schematic diagram of the internal structure of this utility model (retractable push switch).

[0055] Figure 7 This is a schematic diagram of the internal structure of the present invention (the push-button switch extends).

[0056] Figure 8 This is a comparative diagram showing the push switch and the mechanical lock mechanism in the push switch retracted and push switch extended positions, respectively.

[0057] Figure 9 This is a partial structural diagram of the electric lock body mechanism and the push-button switch.

[0058] Figure 10 This is a schematic diagram of the rotating lock body.

[0059] Figure 11 This is a schematic diagram of a push-button switch.

[0060] Figure 12 This is a structural diagram of a fixed sleeve.

[0061] In the diagram: 1. Lock housing; 11. Through hole; 12. Guide block; 2. Push switch; 21. Drive end face; 211. First protruding point; 212. First recessed point; 213. First arc-shaped section; 214. First straight section; 22. Limiting groove; 23. Position feedback element; 24. Linear guide groove; 3. Mechanical lock body mechanism; 31. Rotary lock body; 311. Connecting part; 312. Rotary limiting block; 32. Lock plate; 33. Force-bearing end face; 331. Second protruding point; 332. Second recessed point 333, Second arc section; 334, Second straight section; 34, Fixed sleeve; 341, Opening; 342, Limiting stop; 343, Rotation limiting boss; 4, Elastic transmission component; 5, Control circuit board; 51, Built-in battery; 6, Electric control switch; 7, Electric control lock body mechanism; 71, Motor; 72, Locking rod; 721, Position feedback section; 73, Transmission gear assembly; 731, Worm gear; 732, Worm wheel; 733, Rack; 8, Optical positioning sensor; 9, Position monitoring sensor. Detailed Implementation

[0062] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are merely specific descriptions of the present invention, and their purpose is to enable those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limitations on the present invention.

[0063] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.

[0064] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0065] Example 1

[0066] Reference Figures 1-12 A push-button lock includes: a lock housing 1, which can be installed on a door cabinet; a push-button switch 2, which is retractably disposed on the lock housing 1; a mechanical lock body mechanism 3, which is used to lock external components, and the mechanical lock body mechanism 3 and the push-button switch 2 form a transmission cooperation; the mechanical lock body mechanism 3 includes a rotating lock body 31 and a lock plate 32, the rotating lock body 31 is rotatably disposed in the lock housing 1, and the lock plate 32 is fixedly connected to the rear end of the rotating lock body 31; an elastic transmission member 4 is disposed between the front end of the rotating lock body 31 and the push-button switch 2, and the elastic transmission member 4 acts on the push-button switch 2 so that the push-button switch 2 always has a forward extension tendency; the rear end of the push-button switch 2 is provided with a driving end face 21, and the front end of the rotating lock body 31 is provided with a force-receiving end face 33.

[0067] Reference Figures 4-8 The above-mentioned push-button lock is used as follows:

[0068] When the user controls the push switch 2 to move backward in a straight line, the driving end face 21 abuts against the force-bearing end face 33 and drives the rotary lock body 31 to rotate in the opposite direction. In turn, the rotary lock body 31 drives the lock plate 32 to rotate in the opposite direction (to achieve the locking function), and the elastic transmission member 4 contracts under force.

[0069] When the user releases the push switch 2, the push switch 2 moves forward in a straight line under the action of the elastic transmission member 4, and the driving end face 21 separates from the force-bearing end face 33; and the elastic transmission member 4 applies a rotational force to the rotary lock body 31, so that the rotary lock body 31 rotates in the forward direction, and then the rotary lock body 31 drives the lock plate 32 to rotate in the forward direction (to achieve the unlocking function).

[0070] It is worth mentioning that the elastic transmission component 4 in this utility model serves two purposes: it enables the automatic reset of the push-button switch 2 and provides power for the forward rotation of the rotary lock body 31 during reset, thus simplifying the transmission structure. By converting linear motion (push-button switch 2) into rotational motion (rotary lock body 31), the angle switching of the lock plate 32 is achieved, satisfying the locking / unlocking functional requirements.

[0071] Optionally, the elastic transmission component 4 is a multi-directional elastic spring. The multi-directional elastic spring can more precisely adapt to the rotational requirements of the rotary lock body 31, while also accommodating the reset function of the push switch 2. Specifically: it generates a forward thrust component on the push switch 2, ensuring that the push switch 2 maintains its forward extension tendency under normal conditions; and it generates an initial positive torque on the rotary lock body 31, allowing it to maintain its initial rotational position when there is no external force.

[0072] Specifically, see the reference. Figure 8 , 10 , Figure 11 The driving end face 21 has a first protruding point 211 and a first recessed point 212. One side of the first protruding point 211 is connected to the first recessed point 212 through a first arc-shaped section 213, and the other side is connected to the first recessed point 212 through a first straight section 214. The force-bearing end face 33 has a second protruding point 331 and a second recessed point 332. One side of the second protruding point 331 is connected to the second recessed point 332 through a second arc-shaped section 333, and the other side is connected to the second recessed point 332 through a second straight section 334. When the push switch 2 extends, the first protruding point 211 and the second protruding point 331 are aligned along the extension / retraction direction of the push switch 2. When the push switch 2 retracts, the first protruding point 211 and the second recessed point 332 are aligned along the extension / retraction direction of the push switch 2.

[0073] The concave-convex fit and segmented design of the drive end face 21 and the force-bearing end face 33 enable the precise conversion between the linear motion of the push switch 2 and the rotational motion of the rotary lock body 31.

[0074] Pressing process (press switch 2 retracts): 1. The first protruding point 211 first contacts the second arc-shaped section 333 (the arc-shaped surface connecting the second protruding point 331 and the second recessed point 332) of the force-bearing end face 33. Due to the gradual slope of the arc-shaped surface, when the first protruding point 211 slides along the arc-shaped surface, it will generate a lateral component force (a force perpendicular to the extension direction) on the force-bearing end face 33. This component force is converted into torque that drives the rotary lock body 31 to rotate in the opposite direction. 2. As the press switch 2 continues to move backward, the first protruding point 211 slides along the second arc-shaped section 333 to the end point (close to the second recessed point 332). At this time, the rotary lock body 31 completes the reverse rotation under the action of continuous torque. 3. When the push switch 2 is fully retracted (end of travel), the first protruding point 211 and the second recessed point 332 of the force-bearing end face 33 are precisely aligned, that is, the first protrusion is embedded in the second recess. At this time, the two end faces form a rigid limit through the convex-concave fit. The first flat section 214 of the driving end face 21 (the flat part connecting the first protrusion and the first recess) fits with the second flat section 334 of the force-bearing end face 33 (the flat part connecting the second protrusion and the second recess), preventing the rotary lock body 31 from rotating excessively in the opposite direction and ensuring that the lock plate 32 is stable in the target position.

[0075] Release process (press switch 2 extends and resets): 1. The first protruding point 211 withdraws from the second recessed point 332 and begins to contact the second straight section 334 of the force-bearing end face 33. The reset force of the elastic transmission element 4 (the positive torque of the multi-directional elastic spring) is transmitted through the contact surface, driving the rotary lock body 31 to rotate in the forward direction (opposite to the direction of pressing). 2. The first protruding point 211 slides along the second straight section 334 or the arc section, and the rotary lock body 31 gradually rotates back to the initial angle under the action of continuous torque, and the lock plate 32 resets synchronously. 3. When the press switch 2 is fully extended, the first protruding point 211 is precisely aligned with the second protruding point 331 again, and both end faces return to the initial mating state, waiting for the next pressing operation.

[0076] More specifically, refer to Figures 11-12The mechanical lock body mechanism 3 includes a fixed sleeve 34, which is fixedly connected to the lock housing 1. The rotating lock body 31 extends into the fixed sleeve 34. The rear end of the fixed sleeve 34 has an opening 341, and the rear end of the rotating lock body 31 has a connecting part 311. The connecting part 311 protrudes from the fixed sleeve 34 through the opening 341 and connects to the lock plate 32. The edge of the opening 341 extends inward to form a limiting stop 342, which abuts against the rotating lock body 31 to form a limiting fit, thereby restricting the rearward movement of the rotating lock body 31. The fixed sleeve 34 is the support of the mechanical lock body mechanism 3. Through multi-dimensional constraints on the rotating lock body 31, it provides a stable motion reference for the entire mechanical transmission system, ensuring stable telescopic movement of the push-button lock.

[0077] Furthermore, the limiting stop 342 is provided with a rotation limiting boss 343, and the rear end of the rotary lock body 31 is provided with a rotation limiting block 312. The rotation limiting block 312 can abut against the rotation limiting boss 343 and form an anti-rotation fit. The fit between the rotation limiting boss 343 and the rotation limiting block 312 is a hard limiting design for the rotation angle of the rotary lock body 31, used to precisely control its maximum stroke in the forward / reverse rotation, and avoid failure of the lock plate 32 or damage to components due to excessive rotation.

[0078] Optionally, refer to Figure 2 , Figure 11 The lock housing 1 has a through hole 11 at its front end. The push switch 2 is disposed in the through hole 11 and can extend forward or retract backward along the through hole 11. A guide block 12 is provided on the inner wall of the through hole 11. A linear guide groove 24 distributed along the extension and retraction direction is provided on the outer wall of the push switch 2. The guide block 12 is inserted into the linear guide groove 24 so that the push switch 2 moves in a straight line when it extends and retracts. The guiding process: The push switch 2 extends forward or retracts backward along the through hole 11. At this time, the guide block 12 on the inner wall of the through hole 11 is always engaged in the straight guide groove 24 of the push switch 2. The cooperation between the guide block 12 and the straight guide groove 24 directly restricts the rotational freedom (i.e., it cannot rotate around its own axis) and radial offset (i.e., it cannot tilt to the left / right / up / down direction) of the push switch 2, forcing the push switch 2 to move only along the extension direction (straight line) of the straight guide groove 24. This constraint ensures that the driving end face 21 at the rear end of the push switch 2 (with the first protruding / recessed point) always maintains a preset alignment relationship (such as axial alignment) with the force-bearing end face 33 at the front end of the rotary lock body 31 (with the second protruding / recessed point), avoiding misalignment problems such as "protruding point to protruding point" becoming "protruding point to straight section" due to the rotation of the push switch 2.

[0079] The advantages of the above-mentioned guiding structure are: by mechanically engaging (the guide block 12 is engaged in the linear guide groove 24), the switch 2 is forced to move linearly. Compared with the sliding guide that relies solely on the inner wall of the hole 11 (which is prone to wobbling due to gaps), the sway during the pressing process can be significantly reduced, and the operating feel can be improved (such as no jamming or looseness when pressing).

[0080] Example 2

[0081] Based on the structure of Embodiment 1, this embodiment also adds an electric locking / unlocking function, the specific solution of which is as follows: Refer to Figures 4-7 , Figure 9 Push-button locks also include:

[0082] The control circuit board 5, which is configured in the lock housing 1, serves as the brain of the electronic control system, integrating control logic (such as signal reception, command output, status judgment, etc.). It is installed in the lock housing 1 and is responsible for connecting and coordinating the operation of the electronic control switch 6 and the electronic control lock body mechanism 7.

[0083] Preferably, a built-in battery 51 is used to provide power to each component, or it can be connected to an external power source to provide power, which is not particularly limited here;

[0084] An electric control switch 6 is disposed on the lock housing 1. The electric control switch 6 is electrically connected to the control circuit board 5. The operating components that trigger the electric function (such as password module, fingerprint module, card swiping module, etc.) are installed on the surface of the lock housing 1 or in an easily accessible position. The electric control switch 6 transmits electric locking or electric unlocking commands to the control circuit board 5 through electrical signals (such as level changes, pulse signals).

[0085] The electrically controlled lock body mechanism 7 is an actuating component for the electric function, used to lock / release the mechanical lock body mechanism 3. The electrically controlled lock body mechanism 7 is installed inside the lock housing 1 and electrically connected to the control circuit board 5. When the electrically controlled lock body mechanism 7 is in the locked state: it mechanically limits the movement of the mechanical lock body mechanism 3, preventing it from operating (e.g., the mechanical pressing function fails); when the electrically controlled lock body mechanism 7 is in the released state: it releases the mechanical limit on the mechanical lock body mechanism 3, allowing it to rotate normally with the operation of the push switch 2 (i.e., the mechanical pressing function is restored).

[0086] When the electronically controlled lock body mechanism 7 is in the locked state, the mechanical pressing operation is forcibly prohibited to prevent accidental unlocking by mechanical operation; after electric unlocking, the mechanical operation is not affected, ensuring that manual operation can still be achieved by pressing the switch 2 in the event of power failure or electronic control failure, thereby improving reliability.

[0087] In a specific embodiment, the electronically controlled lock body mechanism 7 includes a motor 71, a locking rod 72, and a transmission gear assembly 73 that is connected between the motor 71 and the locking rod 72. The push switch 2 has a limit groove 22.

[0088] The specific logic of the coordination between the electric and mechanical functions is as follows: when the locking rod 72 is inserted into the limiting groove 22, the electric lock body mechanism 7 and the push switch 2 form a structural interference, which restricts the push switch 2 from extending and retracting, thus preventing the mechanical lock body mechanism 3 from being controlled by the push switch 2; when the locking rod 72 is withdrawn from the limiting groove 22, the structural interference between the electric lock body mechanism 7 and the push switch 2 is released, and the push switch 2 can extend and retract, thus enabling the mechanical lock body mechanism 3 to be controlled by the push switch 2.

[0089] Preferably, refer to Figure 9 The transmission gear assembly 73 includes a worm 731 sleeved on the output shaft of the motor 71, a worm wheel 732 meshing with the worm 731, and a rack 733 disposed on the locking rod 72 and meshing with the worm wheel 732. Thus, when the motor 71 rotates, it can transmit power to the locking rod 72 through the worm 731, the worm wheel 732, and the rack 733.

[0090] Example 3

[0091] Reference Figures 4-7 , Figure 9 Based on Embodiment 2, this embodiment adds a position monitoring and feedback scheme for the electronically controlled lock body mechanism 7, specifically as follows:

[0092] I. It also includes an optical positioning sensor 8, the locking rod 72 has a position feedback section 721, the optical positioning sensor 8 is electrically connected to the control circuit board 5, and the optical positioning sensor 8 is used to detect the movement position of the position feedback section 721.

[0093] By monitoring the position of the position feedback section 721 on the locking lever 72 using the optical positioning sensor 8, it is possible to monitor and determine whether the movement of the locking lever 72 is in place. If the monitored information is different from the execution command, the control circuit board 5 can determine that the action is abnormal and trigger the protection mechanism (such as controlling the motor 71 to reverse and reset, issuing a fault alarm signal) to prevent the motor 71 from continuously stalling and burning out or other components from being damaged.

[0094] Preferably, the optical positioning sensor 8 is an infrared sensor.

[0095] Second, the electronically controlled lock mechanism 7 further includes a position monitoring sensor 9. The push switch 2 has a position feedback element 23. The position monitoring sensor 9 is electrically connected to the control circuit board 5. The position monitoring sensor 9 is used to detect the movement position of the position feedback element 23. Preferably, the position monitoring sensor 9 is a contact sensor.

[0096] By monitoring the position of the position feedback element 23 through the position monitoring sensor 9, it is possible to monitor and determine whether the movement of the push switch 2 is in place. If the monitored information is different from the execution command, the control circuit board 5 can determine that the action is abnormal. By detecting the actual position of the push switch 2, it is possible to intuitively determine whether the user's mechanical operation has been executed (rather than relying on indirect inference from intermediate transmission links), avoiding the problem of operational failure caused by wear of transmission components without the system's knowledge, and improving system safety.

[0097] It is worth mentioning the synergistic value of the position monitoring sensor 9 (contact sensor) solution and the optical positioning sensor 8 solution. The optical positioning sensor 8 monitors the execution status of the electric locking mechanism (whether the locking rod 72 is in place), while the position monitoring sensor 9 monitors the execution status of the mechanical lock body mechanism 3 (whether the push switch 2 is activated). The combination of the two forms a closed loop of the entire process of electric control and mechanical operation.

[0098] It is worth noting that the other technical solutions of this utility model are all existing technologies, and therefore will not be described in detail.

[0099] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the concept of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A push-button lock, comprising: Lock housing (1), which can be installed on the door cabinet body; A push-button switch (2) is retractably mounted on the lock housing (1); The mechanical lock body mechanism (3) is used to lock the external components, and the mechanical lock body mechanism (3) forms a transmission cooperation with the push switch (2); Its features are: The mechanical lock body mechanism (3) includes a rotating lock body (31) and a lock plate (32). The rotating lock body (31) is rotatably disposed inside the lock housing (1), and the lock plate (32) is fixedly connected to the rear end of the rotating lock body (31). An elastic transmission element (4) is provided between the front end of the rotary lock body (31) and the push switch (2). The elastic transmission element (4) acts on the push switch (2) so that the push switch (2) always has a forward extension tendency. The push switch (2) is provided with a drive end face (21) at its rear end, and the rotary lock body (31) is provided with a force-receiving end face (33) at its front end. When the user controls the push switch (2) to move backward in a straight line, the driving end face (21) abuts against the force-bearing end face (33) and drives the rotary lock body (31) to rotate in the opposite direction. Then the rotary lock body (31) drives the lock plate (32) to rotate in the opposite direction, and the elastic transmission component (4) contracts under force. When the user releases the push switch (2), the push switch (2) moves forward in a straight line under the action of the elastic transmission member (4), and the driving end face (21) separates from the force-bearing end face (33); and the elastic transmission member (4) applies a rotational force to the rotary lock body (31) so that the rotary lock body (31) rotates in the forward direction, and then the rotary lock body (31) drives the lock plate (32) to rotate in the forward direction.

2. The push-button lock according to claim 1, characterized in that: It also includes: A control circuit board (5) is disposed in the lock housing (1); An electric control switch (6) is disposed on the lock housing (1) and is electrically connected to the control circuit board (5); An electronically controlled lock body mechanism (7) is used to lock / release a mechanical lock body mechanism (3). The electronically controlled lock body mechanism (7) is installed inside the lock housing (1) and is electrically connected to the control circuit board (5).

3. The push-button lock according to claim 2, characterized in that: The electric lock body mechanism (7) includes a motor (71), a locking rod (72), and a transmission gear assembly (73) that is connected between the motor (71) and the locking rod (72). The push switch (2) has a limit groove (22). When the locking rod (72) is inserted into the limiting groove (22), the electronic lock body mechanism (7) and the push switch (2) form a structural interference to restrict the push switch (2) from extending and retracting. When the locking rod (72) is withdrawn outside the limiting groove (22), the structural interference between the electric lock body mechanism (7) and the push switch (2) is released, and the push switch (2) can perform telescopic movement.

4. The push-button lock according to claim 3, characterized in that: It also includes an optical positioning sensor (8), the locking rod (72) has a position feedback section (721), the optical positioning sensor (8) is electrically connected to the control circuit board (5), and the optical positioning sensor (8) is used to detect the movement position of the position feedback section (721).

5. The push-button lock according to claim 2, characterized in that: The electronically controlled lock body mechanism (7) also includes a position monitoring sensor (9), and the push switch (2) has a position feedback element (23). The position monitoring sensor (9) is electrically connected to the control circuit board (5), and the position monitoring sensor (9) is used to detect the movement position of the position feedback element (23).

6. The push-button lock according to claim 1, characterized in that: The drive end face (21) has a first protruding point (211) and a first recessed point (212). One side of the first protruding point (211) is connected to the first recessed point (212) through a first arc-shaped section (213), and the other side is connected to the first recessed point (212) through a first straight section (214). The force-bearing end face (33) has a second protruding point (331) and a second recessed point (332). One side of the second protruding point (331) is connected to the second recessed point (332) through a second arc-shaped section (333), and the other side is connected to the second recessed point (332) through a second straight section (334). When the push switch (2) is extended, the first protruding point (211) and the second protruding point (331) are positioned opposite each other along the extension and retraction direction of the push switch (2); When the push switch (2) retracts, the first protruding point (211) and the second recessed point (332) are positioned opposite each other along the extension and retraction direction of the push switch (2).

7. The push-button lock according to claim 1, characterized in that: The mechanical lock body mechanism (3) includes a fixed sleeve (34), which is fixedly connected to the lock housing (1), and the rotating lock body (31) extends into the fixed sleeve (34). The fixed sleeve (34) has an opening (341) at its rear end, and the rotating lock body (31) has a connecting part (311) at its rear end. The connecting part (311) is exposed outside the fixed sleeve (34) through the opening (341) and connected to the lock piece (32). The edge of the opening (341) extends inward to form a limiting stop (342), which abuts against the rotary lock body (31) and forms a limiting fit to restrict the rotary lock body (31) from moving backward.

8. The push-button lock according to claim 7, characterized in that: The limiting stop (342) is provided with a rotation limiting boss (343), and the rear end of the rotating lock body (31) is provided with a rotation limiting block (312). The rotation limiting block (312) can abut against the rotation limiting boss (343) and form an anti-rotation fit.

9. The push-button lock according to claim 1, characterized in that: The front end of the lock housing (1) is provided with a through hole (11), and the push switch (2) is disposed in the through hole (11) and can extend forward or retract backward along the through hole (11); The inner wall of the through hole (11) is provided with a guide block (12), and the outer wall of the push switch (2) is provided with a straight guide groove (24) distributed along the extension direction. The guide block (12) is inserted into the straight guide groove (24) so ​​that the push switch (2) moves in a straight line when it extends or retracts.

10. The push-button lock according to any one of claims 1-9, characterized in that: The elastic transmission component (4) is a multi-directional elastic spring.

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