Lock body pusher capable of preventing locking

Abstract

The utility model discloses an anti-jamming lock body pusher which comprises a shell, a lock sliding block and a driving motor are arranged in the shell, and a gear disc and a coaxial rotating disc are further rotationally connected in the shell. At least one first protrusion is arranged on the outer side wall of the rotating disc, at least one second protrusion is arranged on the gear disc, an empty swing space is formed between the two side faces of the second protrusion or between the side faces of every two adjacent second protrusions, and every time the gear disc starts to rotate forwards and backwards, the empty swing space is located between the first protrusion and the second protrusion. The gear disc idles for a certain distance at first, and then the second bulges on the gear disc abut against the corresponding first bulges from different directions and push the rotating disc to rotate along with the first bulges; a first transmission assembly is arranged between the gear disc and an output shaft of the driving motor, and a second transmission assembly is arranged between the rotating disc and the locking sliding block. The utility model has the advantages of reducing the impact force and resistance when the motor is started, thereby reducing the risk of jamming, prolonging the service life of the motor, and improving the overall energy efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of electric locks, in particular to a lock body pusher for preventing jamming. Background Art

[0002] As a combination of safety and convenience, electric locks are widely used in daily life. The core of electric locks lies in the cooperation between the locking mechanism and the motor inside to achieve the control of the locking mechanism. Usually, the design of electric locks involves the drive motor, which is the main power source to realize the function of electric locks.

[0003] In such devices, the motor and the lock body need to be connected through a transmission structure, which usually includes a gear pair, a screw pair, etc., which are key components for converting the rotational motion of the motor into the linear motion or other forms of motion required by the lock body.

[0004] In the prior art, the transmission process from the motor to the lock body is often rigidly connected. This means that each start and operation of the motor will be directly transmitted to the lock body, so that the electric lock will generate a large instantaneous torque when it is started. Although this hard start method can provide the advantage of fast response in some cases, it is also accompanied by some risks and disadvantages. For example, if there is a blockage or excessive resistance in the lock body or transmission mechanism, the large torque of the motor during hard start may cause damage to internal gears or screw rods and other components, and may even cause damage to the motor itself due to overload.

[0005] In addition, hard starting will also have a negative impact on the life of the motor. Because the motor has to withstand a sudden large torque every time it starts, this impact load tends to accelerate the wear rate of the motor's internal components, such as bearings and gears, and reduce the overall service life. Moreover, since hard starting requires a large current, it will also increase the use of electrical energy, resulting in a lower energy efficiency ratio, which is not conducive to energy conservation and emission reduction, and the electric lock needs to be charged frequently.

[0006] Therefore, it is necessary to further improve and perfect the prior art to overcome these deficiencies, and the present invention is made based on this situation. Utility Model Content

[0007] The purpose of the utility model is to solve the problem of jamming that may occur in the use of electric locks in the prior art, especially a series of problems such as difficulty in starting the motor, excessive torque, and motor damage caused by hard connection in the transmission structure. To this end, the utility model proposes a lock body pusher to prevent jamming. The structure is designed to reduce the impact force and resistance when the motor is started, thereby reducing the risk of jamming, extending the service life of the motor, and improving the overall energy efficiency.

[0008] The utility model is realized by the following technical solutions:

[0009] In order to solve the above technical problems, the utility model provides a lock body pusher for preventing jamming, comprising a housing, a lock slider and a driving motor for driving the lock slider to move up and down and to rotate forward and reversely, and a gear plate and a rotating plate coaxial with the gear plate are also rotatably connected in the housing;

[0010] At least one first protrusion is provided on the outer side wall of the rotating disk, and at least one second protrusion that can cooperate with the corresponding first protrusion is provided on the gear disk. An idle swing space is formed between the two side surfaces of the second protrusion or between the side surfaces of two adjacent second protrusions, in which the corresponding first protrusion can freely swing. Each time the gear disk starts to rotate forward and reverse, the gear disk first idles for a distance and then the second protrusions thereon abut against the corresponding first protrusions from different directions respectively, and push the rotating disk to rotate accordingly.

[0011] A first transmission assembly for transmission connection between the gear plate and the output shaft of the driving motor is provided between the two, and a second transmission assembly for converting the rotational motion of the rotating plate into the linear motion of the locking slider is provided between the rotating plate and the locking slider.

[0012] In order to further solve the technical problem to be solved by the utility model, the utility model provides a lock body pusher for preventing jamming, wherein the gear plate is provided with a rotating groove, the rotating plate is arranged in the rotating groove and can rotate therein, and the second protrusion is arranged on the inner side wall of the rotating groove.

[0013] In order to further solve the technical problem to be solved by the utility model, in a lock body pusher for preventing jamming provided by the utility model, the first transmission component is a gear transmission mechanism composed of a plurality of gear pairs.

[0014] In order to further solve the technical problem to be solved by the utility model, in a lock body pusher for preventing jamming provided by the utility model, the second transmission component is a gear rack pair.

[0015] In order to further solve the technical problem to be solved by the utility model, the utility model provides a lock body pusher for preventing jamming, wherein the gear rack pair includes a first gear arranged on the rotating disk, and a rack arranged on the lock slider and capable of meshing with the first gear.

[0016] In order to further solve the technical problem to be solved by the utility model, the utility model provides a lock body pusher for preventing jamming, wherein the driving motor is connected to a power module and a control circuit board.

[0017] In order to further solve the technical problem to be solved by the utility model, in a lock body pusher for preventing jamming provided by the utility model, the control circuit board is connected to a grating sensor located between the shell and the lock slider and used to calculate the travel of the drive motor when the drive motor is started for the first time.

[0018] In order to further solve the technical problem to be solved by the utility model, the utility model provides a lock body pusher for preventing jamming, wherein the shell is provided with a slide groove arranged in the up and down direction, and the lock slider is provided with a guide rail that can cooperate with the slide groove.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The gear plate and the rotating plate of the utility model form a buffer structure. When the drive motor is started during unlocking or locking the door, the rotating plate will idle for one circle when the drive motor is just started, until the second protrusion abuts against the first protrusion from the other side, and then it will push the rotating plate to rotate together, thereby driving the lock slider to move up and down. In such a design, each time the drive motor is started, the rotating plate will idle for a period of time relative to the gear plate. During this period of idling, the load on the drive motor is relatively low. Therefore, such a design reduces the impact force and resistance when the motor is started, thereby reducing the risk of jamming, extending the service life of the motor, and improving the overall energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model (part of the housing is not shown);

[0023] Figure 2 This is one of the exploded schematic diagrams of the utility model;

[0024] Figure 3 It is the second exploded schematic diagram of the utility model. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figures 1 to 3 The lock body pusher for preventing jamming is shown, which aims to improve the reliability and durability of the electric lock through a series of innovative designs. The structure is mainly composed of a housing 1, a lock slider 2 and a drive motor 3, and other parts working together to form the core transmission mechanism of the electric lock.

[0027] The housing 1 is the outer shell of the electric lock, which provides protection for the internal mechanical components and ensures that the internal structure is not affected by the external environment. The housing 1 is designed with corresponding installation space and fixed structure to install the lock slider 2 and the drive motor 3 and other components.

[0028] The lock slider 2 is a dynamic component directly associated with the door lock tongue. Its main function is to move up and down according to the rotation of the drive motor 3, thereby controlling the extension and retraction of the door lock tongue. The lock slider 2 is usually connected to a linkage plate, which is further connected to the door lock tongue to form a complete power transmission mechanism.

[0029] The driving motor 3 is the power source of the electric lock, and is responsible for providing power to drive the lock slider 2 to move up and down. The driving motor 3 has a forward and reverse function, and can flexibly change the rotation direction according to the control signal, thereby controlling the locking and unlocking actions of the electric lock.

[0030] In order to solve the common stuck phenomenon and related risks in traditional electric locks, the utility model adopts a special design in the transmission structure to ensure the stability of the drive motor 3 during the startup and operation process. The specific structure is as follows:

[0031] The housing 1 is also rotatably connected with a gear plate 4 and a rotating plate 5 coaxial with the gear plate 4. More specifically, the gear plate 4 is provided with a rotating groove 41, and the rotating plate 5 is arranged in the rotating groove 41 and can rotate therein. The rotating groove 41 in the gear plate 4 forms an embedded rotating space. The rotating plate 5 located in the rotating groove 41 can rotate freely therein and maintain the same axis as the gear plate 4. Of course, the second protrusion 42 described below is arranged on the inner side wall of the rotating groove 41.

[0032] Of course, a first transmission assembly 6 is provided between the gear plate 4 and the output shaft of the driving motor 3 to transmit and connect the two, and the design of the transmission assembly is to transmit and convert the rotational torque of the motor so that it can drive the gear plate 4 to rotate. A second transmission assembly 7 is provided between the rotating plate 5 and the lock slider 2 to convert the rotational motion of the rotating plate 5 into the linear motion of the lock slider 2. The second transmission assembly 7 can be a screw pair, a gear rack pair, a connecting rod and other mechanisms, which enable the rotation of the rotating plate 5 to drive the lock slider 2 to move linearly along a predetermined trajectory.

[0033] More importantly, in the design of the present invention, the interactive relationship between the rotating disk 5 and the gear disk 4 plays a buffering role, which is crucial for protecting the drive motor 3 and reducing the jamming phenomenon.

[0034] Further, at least one first protrusion 51 is provided on the outer wall of the rotating disk 5, and at least one second protrusion 42 that can cooperate with the corresponding first protrusion 51 is provided on the gear disk 4. An empty swing space 43 is formed between the two side surfaces of the second protrusion 42 (when there is only one second protrusion 42) or between the side surfaces of two adjacent second protrusions 42 (when there are multiple second protrusions 42) in which the corresponding first protrusion 51 can swing freely. Each time the gear disk 4 starts to rotate forward and reverse, the gear disk 4 first idles for a distance and then the second protrusion 42 thereon abuts against the corresponding first protrusion 51 from different directions and pushes the rotating disk 5 to rotate accordingly. The interaction of the two protrusions realizes a unique mechanical buffer mechanism.

[0035] In the specific working process, when the driving motor 3 is started, it first causes the gear plate 4 to rotate forward or reverse. During the rotation of the gear plate 4, the second protrusion 42 will contact and push the first protrusion 51 in different rotation directions, thereby driving the rotating plate 5 to rotate. It is worth noting that since the interaction point between the first protrusion 51 and the second protrusion 42 is not fixed, this structure allows the rotating plate 5 to not immediately respond to the rotation of the gear plate 4 in the initial stage, but to first perform a certain degree of idling.

[0036] This idling not only allows the drive motor 3 to start smoothly under a lower load and reduce the current shock during startup, but also provides a short lag time for the rotating disk 5, so that the mechanical components in the rotating disk 5 can gradually receive the power from the drive motor 3. Such a buffering process reduces mechanical shock and wear, thereby improving the stability and durability of the entire system.

[0037] When the second protrusion 42 finally abuts against the first protrusion 51, the rotating disk 5 starts to drive the second transmission assembly 7 to work, thereby pushing the lock slider 2 up and down to complete the locking or unlocking action. During the whole process, the cooperation between the second protrusion 42 and the first protrusion 51 acts as an effective mechanical buffer, greatly improving the performance of the electric lock, increasing the life of the electric lock, and also ensuring energy efficiency optimization in continuous use.

[0038] In addition, the idling mechanism of the rotating disk 5 in the utility model is not limited to the buffer at the initial start-up. During the entire operation cycle, including opening, locking, unlocking and other actions, this mechanism helps to eliminate the potential risk of jamming caused by small size changes due to temperature changes, mechanical expansion or long-term use. By allowing the rotating disk 5 to idle at the beginning of the start-up of the drive motor 3, the system can automatically adjust and absorb these small changes, ensuring that the electric lock can work stably and reliably under various environmental conditions.

[0039] More specifically, the first transmission assembly 6 uses a gear transmission mechanism composed of a plurality of gear pairs. Such a gear transmission mechanism can effectively transmit the rotational force of the drive motor 3 to the gear plate 4. The first transmission assembly 6 includes bevel gear pairs, spur gear pairs, etc. The number and size of the gears are not limited and should be adaptively set to meet different performance requirements.

[0040] More specifically, the second transmission assembly 7 is preferably a gear rack pair. Its function is to convert the rotational motion of the rotating disk 5 into the linear motion of the lock slider 2. The first gear 71 is arranged on the rotating disk 5, and the rack 72 is arranged on the lock slider 2. When the first gear 71 rotates, its teeth mesh with the rack 72, pushing the lock slider 2 to move along a linear trajectory. This conversion mechanism between rotation and linear motion is the basis of the core function of the electric lock, and its operation must be accurate and reliable.

[0041] More specifically, the drive motor 3 is connected to a power module and a control circuit board 8. The drive motor 3 is the core of the power transmission system of the electric lock. It is powered by the power module and managed and controlled by the control circuit board 8. The control circuit board 8 is the key to the intelligence of the system. It may integrate a microprocessor, electronic components and firmware programs to implement complex logical operations and process input signals from sensors. It not only controls the start and stop of the motor 3, but also adjusts the speed and torque to ensure the accuracy and efficiency of the operation of the electric lock.

[0042] The control circuit board 8 is connected to a position sensor for detecting the position of the lock slider 2. The position sensor is an important part of the control system and is directly connected to the control circuit board 8. The function of this sensor is to detect the position of the lock slider 2 in real time to ensure that the lock is locked and unlocked in the correct position. This may be achieved through magnetic induction, optical recognition or other types of sensing technology. The data collected by the position sensor is sent to the control circuit board 8. If the lock slider 2 does not reach the predetermined position, the system will adjust the movement of the drive motor 3 accordingly until the lock slider 2 reaches the position it should be.

[0043] More specifically, the control circuit board 8 is connected to a grating sensor 9 located between the housing 1 and the lock slider 2 and used to calculate the stroke of the drive motor 3 when the drive motor 3 is first started. The function of the grating sensor 9 is to calculate the stroke of the drive motor 3 and other information when it is first started, and transmit a signal to the control circuit board 8 to control the start and stop of the drive motor 3. The information detected and recorded by the grating sensor 9 generally includes how many turns the drive motor 3 has rotated during proportional unlocking, resetting, and locking, and the detected and stored signals are sent to the control circuit board 8.

[0044] More specifically, in order to ensure the smooth and linear movement of the lock slider and prevent it from deflecting during the movement, a slide groove 11 is designed on the housing 1 and is arranged in the up-and-down direction.

[0045] The slide groove 11 is a long strip groove, and its shape, width and depth match the guide rail 21 on the lock slider 2. When the lock slider 2 moves, the guide rail 21 slides into the slide groove 11, just like a train on a train track, ensuring that the lock slider 2 only moves up and down along a predetermined path. This design effectively eliminates potential lateral movement or rotation, ensuring the stability and accuracy of the lock slider.

Claims

1. A lock body pusher for preventing jamming, characterized in that: The invention comprises a housing (1), wherein a locking slider (2) and a driving motor (3) for driving the locking slider (2) to move up and down and to rotate forward and reversely are arranged in the housing (1); a gear plate (4) and a rotating plate (5) coaxial with the gear plate (4) are also rotatably connected in the housing (1); At least one first protrusion (51) is provided on the outer wall of the rotating disk (5), and at least one second protrusion (42) capable of cooperating with the corresponding first protrusion (51) is provided on the gear disk (4), and an idle swing space (43) is formed between the two side surfaces of the second protrusion (42) or between the side surfaces of two adjacent second protrusions (42) in which the corresponding first protrusion (51) can freely swing, and each time the gear disk (4) starts to rotate forward or reverse, the gear disk (4) first idles for a certain distance and then the second protrusion (42) thereon abuts against the corresponding first protrusion (51) from different directions and pushes the rotating disk (5) to rotate accordingly; A first transmission assembly (6) for transmission connection between the gear plate (4) and the output shaft of the driving motor (3) is provided between the two, and a second transmission assembly (7) for converting the rotational motion of the rotating plate (5) into the linear motion of the locking slide block (2) is provided between the rotating plate (5) and the locking slide block (2).

2. The lock body pusher for preventing jamming according to claim 1, characterized in that: The gear plate (4) is provided with a rotating groove (41), the rotating plate (5) is arranged in the rotating groove (41) and can rotate therein, and the second protrusion (42) is arranged on the inner side wall of the rotating groove (41).

3. The lock body pusher for preventing jamming according to claim 1, characterized in that: The first transmission assembly (6) is a gear transmission mechanism composed of a plurality of gear pairs.

4. The anti-stuck lock body pusher according to claim 1, characterized in that: The second transmission assembly (7) is a gear rack pair.

5. The lock body pusher for preventing jamming according to claim 4, characterized in that: The gear rack pair comprises a first gear (71) arranged on the rotating disk (5), and a rack (72) arranged on the locking slider (2) and capable of meshing with the first gear (71).

6. The anti-stuck lock body pusher according to claim 1, characterized in that: The driving motor (3) is connected to a power module and a control circuit board (8).

7. The anti-stuck lock body pusher according to claim 6, characterized in that: The control circuit board (8) is connected to a grating sensor (9) located between the housing (1) and the lock slider (2) and used to calculate the travel of the drive motor (3) when the drive motor (3) is started for the first time.

8. The anti-stuck lock body pusher according to claim 1, characterized in that: The housing (1) is provided with a slide groove (11) arranged in the up-down direction, and the locking slider (2) is provided with a guide rail (21) capable of cooperating with the slide groove (11).

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