Washing machine door lock switch
By using a bidirectional synchronous motor to drive the rotating disc and linkage structure, combined with manual unlocking via a traction belt, the problem of easy failure of traditional washing machine door locks is solved, achieving stable and precise door lock control and a backup unlocking solution.
Patent Information
- Application Number
- CN202422925073.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Traditional washing machine door locks are prone to rust or dirt buildup due to electromagnetic induction technology, which weakens their magnetism, causing them to malfunction and resulting in poor stability and controllability.
The door lock is automatically locked and unlocked by a bidirectional synchronous motor that drives the rotating disc. The first and second linkages enable the door lock to be locked and unlocked automatically. A traction belt is also provided for manual unlocking, ensuring the stability and controllability of the door lock operation.
It improves the stability and accuracy of door lock switches, ensuring accurate locking and unlocking states, reducing the possibility of malfunctions, and providing a manual unlocking backup solution.
Smart Images

Figure CN223548283U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of home appliance technology, specifically to a washing machine door lock switch. Background Technology
[0002] Traditional washing machine door locks mostly use electromagnetic induction technology. When the washing machine door closes, the lock receives a signal, activating the electromagnet to make the lock cylinder fully engage with the socket, locking the door. The lock remains locked during the washing machine's operation until the washing machine finishes, at which point the electromagnet disengages, the lock cylinder separates from the socket, and the door unlocks. However, after prolonged use, electromagnetic induction is prone to rust or dirt buildup, weakening its magnetism. Insufficient magnetism can lead to switch failure, resulting in poor stability throughout the entire door lock opening and closing process. Summary of the Invention
[0003] This application provides a washing machine door lock switch that ensures stable performance, higher precision, and better controllability.
[0004] This application provides a washing machine door lock switch, including a mounting base, a locking assembly, a bidirectional synchronous motor, and a traction belt. The mounting base has a cavity; the locking assembly includes a rotating disk, a first connecting rod, and a second connecting rod. The rotating disk is rotatably disposed within the cavity. One end of the first connecting rod and the second connecting rod are slidably disposed on opposite sides of the rotating disk, and their other ends extend out of the cavity, respectively movably connected to the washing machine door and the inner wall of the washing machine; the bidirectional synchronous motor has its motor shaft connected to the rotating disk; the traction belt has one end disposed on the rotating disk and the other end extending outside the washing machine, and the traction belt can drive the rotating disk to rotate.
[0005] In one embodiment, the mounting base includes an upper mounting base and a lower mounting base, which are interlocked to form the cavity. The rotating disk is rotatably mounted on the lower mounting base, and the motor shaft passes through the upper mounting base and is connected to the rotating disk in a transmission manner.
[0006] In one embodiment, the bottom of the rotating disk is provided with two spiral grooves, and the ends of the first connecting rod and the second connecting rod are each slidably disposed in one spiral groove; when the rotating disk rotates in different directions, the first connecting rod and the second connecting rod perform relative linear reciprocating motion.
[0007] In one embodiment, both the first link and the second link slide within the helical groove via sliding posts at their ends.
[0008] In one embodiment, a rotating groove is provided at the center of the top surface of the lower mounting base for the rotating disk to rotate, and a linear groove is provided on the opposite side of the top surface for the first connecting rod and the second connecting rod to perform linear reciprocating motion, and the linear groove is connected to the rotating groove.
[0009] In one embodiment, the rotating disk has a rotating shaft at its bottom center, and the rotating groove has a blind hole that mates with the rotating shaft.
[0010] In one embodiment, the top surface of the rotating disk has a cylindrical protrusion at its center, and a linkage hole is formed at the center of the protrusion. The motor shaft cooperates with the linkage hole to realize the transmission connection between the motor shaft and the rotating disk.
[0011] In one embodiment, one end of the traction belt is fixed to the outer wall of the protrusion and can be wound around the outer wall of the protrusion, and the other end of the traction belt is provided with a traction rope.
[0012] In one embodiment, the other end of the first connecting rod is connected to one end of the third connecting rod via an adjusting connecting seat, the other end of the third connecting rod is movably connected to the inner wall of the washing machine, and a connecting rod fixing seat is provided in the middle of the third connecting rod.
[0013] In one embodiment, a micro switch for controlling the bidirectional synchronous motor to stop is installed on each side of the upper mounting base, and an arc-shaped block is provided on the top edge of the rotating disk. The micro switch sends a control signal through the arc-shaped block contacting the actuating spring of the micro switch.
[0014] The beneficial effects of the technical solutions provided in this application include:
[0015] In this application, by activating a bidirectional synchronous motor, its motor shaft drives a rotating disk within the mounting cavity to rotate clockwise (or counterclockwise), causing the first and second connecting rods to simultaneously move closer to the center of the rotating disk, thereby locking the door lock. Conversely, by activating the bidirectional synchronous motor, its motor shaft drives the rotating disk within the mounting cavity to rotate counterclockwise (or clockwise), causing the first and second connecting rods to simultaneously move away from the center of the rotating disk, thereby unlocking the door lock. This allows users to easily lock and unlock the door lock with simple operations (such as button operation or program setting), improving ease of use. Simultaneously, the bidirectional synchronous motor can precisely control the rotation direction and angle of the rotating disk, ensuring accurate locking and unlocking of the door lock and guaranteeing stable operation over a long period, reducing the possibility of door lock malfunctions. Furthermore, the addition of a traction strap acts as an additional "key" to the washing machine's door lock. When the door lock fails and cannot be opened, pulling the traction strap on the outside of the washing machine causes the fixed end of the strap to rotate the rotating disc, thus enabling manual unlocking. This door lock structure, which combines automatic and manual operation, also improves the controllability of the washing machine door lock. Therefore, this application ensures stable door lock performance, higher precision, and better controllability. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the washing machine door lock switch in an embodiment of this application;
[0018] Figure 2 for Figure 1 Installation diagram of the center locking assembly and the lower mounting base;
[0019] Figure 3 for Figure 1 A schematic diagram showing the connection between the central rotating disk, the first connecting rod, and the second connecting rod;
[0020] Figure 4 for Figure 1 Schematic diagram of the lower mounting base.
[0021] In the picture:
[0022] 1. Mounting base; 11. Upper mounting base; 12. Lower mounting base; 121. Rotary groove; 1211. Blind hole; 122. Straight groove;
[0023] 2. Locking assembly; 21. Rotary disk; 211. Spiral groove; 212. Rotating shaft; 213. Protrusion; 2131. Linkage hole; 214. Arc block; 22. First connecting rod; 221. Sliding column; 23. Second connecting rod; 24. Adjusting connecting seat; 25. Third connecting rod; 26. Connecting rod fixing seat;
[0024] 3. Bidirectional synchronous motor; 31. Motor shaft;
[0025] 4. Towing belt;
[0026] 5. Towing rope;
[0027] 6. Micro switch; 61. Actuating reed. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.
[0029] First, some of the technical terms used in this application will be explained to help those skilled in the art understand this application.
[0030] A micro switch, as the name suggests, is a switch that uses very little force. It is a switch in which external mechanical force is applied to an actuating spring through a transmission element, causing the fixed contact at its end to quickly connect or disconnect with the moving contact.
[0031] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0032] This application provides a washing machine door lock switch that ensures stable performance, higher precision, and better controllability.
[0033] Reference Figure 1 , Figure 1 This is a schematic diagram of the washing machine door lock switch in an embodiment of this application, as shown below. Figure 1As shown, in one embodiment, the washing machine door lock switch includes a mounting base 1, a locking assembly 2, a bidirectional synchronous motor 3, and a traction belt 4. The mounting base 1 has a cavity. The locking assembly 2 includes a rotating disk 21, a first connecting rod 22, and a second connecting rod 23. The rotating disk 21 is rotatably disposed in the cavity. One end of the first connecting rod 22 and the second connecting rod 23 are slidably disposed on opposite sides of the rotating disk 21, and the other ends of the first connecting rod 22 and the second connecting rod 23 extend out of the cavity and are movably connected to the washing machine door and the inner wall of the washing machine, respectively. The motor shaft 31 of the bidirectional synchronous motor 3 is connected to the rotating disk 21 for transmission. One end of the traction belt 4 is disposed on the rotating disk 21, and the other end extends out of the washing machine, and the traction belt 4 can drive the rotating disk 21 to rotate.
[0034] The mounting base 1 has a cavity and can be composed of two parts that are interlocked. The mounting base 1 also has several mounting holes or grooves for mounting other parts, and the mounting holes or grooves are all connected to the cavity. The rotating disk 21 can be disc-shaped. The first link 22 and the second link 23 can be straight rods or partially bent straight rods. The first link 22 and the second link 23 are slidably connected to the rotating disk 21, rather than being fixedly connected. When the motor shaft 31 of the bidirectional synchronous motor 3 drives the rotating disk 21 to rotate, the first link 22 and the second link 23 will not move in a circle around the center of the rotating disk 21. Instead, as the rotating disk 21 rotates clockwise or counterclockwise, the first link 22 and the second link 23 will move in a relative linear reciprocating motion. For example, when the rotating disk 21 rotates clockwise, the first link 22 and the second link 23 will simultaneously move closer to (or further away from) the center of the rotating disk 21; when the rotating disk 21 rotates counterclockwise, the first link 22 and the second link 23 will simultaneously move away from (or closer to) the center of the rotating disk 21. Furthermore, the protrusion openings on the mounting base 1 for the other ends of the first link 22 and the second link 23 to extend out of the cavity ensure that the first link 22 and the second link 23 can only move in a straight line and cannot swing around. The motor shaft 31 of the bidirectional synchronous motor 3 can be set at the center of the rotating disk 21. When the motor shaft 31 drives the rotating disk 21 to rotate, the traction belt 4 will wrap around the rotating disk 21 one turn at a time. During this process, the winding position of the traction belt 4 will not affect the motor shaft 31's drive of the rotating disk 21.
[0035] In this embodiment, when the door lock is locked, the motor shaft 31 drives the rotating disk 21 to rotate clockwise (or counterclockwise), the first link 22 and the second link 23 move in a straight line and move closer to the center of the rotating disk 21, and the traction belt 4 wraps around the center of the rotating disk 21.
[0036] When the door lock is unlocked, the motor shaft 31 drives the rotating disk 21 to rotate counterclockwise (or clockwise), the first link 22 and the second link 23 move in a straight line and move away from the center of the rotating disk 21, and the traction belt 4 wrapped around the center of the rotating disk 21 is released.
[0037] In this embodiment, by activating the bidirectional synchronous motor 3, its motor shaft 31 drives the rotating disk 21 in the cavity of the mounting base 1 to rotate clockwise (or counterclockwise), causing the first connecting rod 22 and the second connecting rod 23 to simultaneously move closer to the center of the rotating disk 21, thereby locking the door lock. Conversely, by activating the bidirectional synchronous motor 3, its motor shaft 31 drives the rotating disk 21 in the cavity of the mounting base 1 to rotate counterclockwise (or clockwise), causing the first connecting rod 22 and the second connecting rod 23 to simultaneously move away from the center of the rotating disk 21, thereby unlocking the door lock. This allows users to easily lock and unlock the door lock with simple operations (such as button operation or program setting), improving ease of use. Simultaneously, the bidirectional synchronous motor 3 can precisely control the rotation direction and angle of the rotating disk 21, ensuring accurate locking and unlocking of the door lock and guaranteeing stable operation over a long period, reducing the possibility of door lock malfunctions. Furthermore, the inclusion of the traction strap 4 acts as an additional "key" to the washing machine door lock. When the door lock fails and cannot be opened, pulling the traction strap 4 on the outside of the washing machine causes the fixed end of the traction strap 4 to rotate the rotating disc 21, thus enabling manual unlocking. This door lock structure, which combines automatic and manual operation, also improves the controllability of the washing machine door lock. Therefore, this embodiment ensures stable door lock performance, higher precision, and better controllability.
[0038] Furthermore, in one embodiment, reference is made to Figure 1 and Figure 2 , Figure 2 for Figure 1 A schematic diagram of the installation of the central locking assembly 2 and the lower mounting base 12. Figure 1 and Figure 2 As shown, the mounting base 1 includes an upper mounting base 11 and a lower mounting base 12, which interlock to form a cavity. The rotating disk 21 is rotatably mounted on the lower mounting base 12. The motor shaft 31 passes through the upper mounting base 11 and is connected to the rotating disk 21 for transmission. In this embodiment, the mounting base 1 includes an upper mounting base 11 and a lower mounting base 12, which interlock to form a cavity. The rotating disk 21 is placed in the cavity and rotatably mounted on the lower mounting base 12. Here, after the rotating disk 21 is installed, there is still a gap between the top and bottom surfaces of the rotating disk 21 to ensure that the rotating disk 21 can rotate without being subjected to friction during rotation. The motor shaft 31 passes through the upper mounting base 11 and is connected to the rotating disk 21 for transmission, indicating that the entire structure of the bidirectional synchronous motor 3 is embedded in the upper mounting base 11. This ensures that the installation of the bidirectional synchronous motor 3 is relatively stable and that the motor shaft 31 will not wobble when driving the rotating disk 21, making the entire driving process more stable.
[0039] Furthermore, in one embodiment, reference is made to Figure 3 , Figure 3 for Figure 1 A schematic diagram showing the connection between the central rotating disk 21, the first connecting rod 22, and the second connecting rod 23. (See diagram below.) Figure 3 As shown, the bottom of the rotating disk 21 is provided with two spiral grooves 211. The ends of the first connecting rod 22 and the second connecting rod 23 are each slidably disposed in one of the spiral grooves 211. When the rotating disk 21 rotates in different directions, the first connecting rod 22 and the second connecting rod 23 perform relative linear reciprocating motion. In this embodiment, the spiral groove 211 refers to the groove spirally arranged from the center (or near the center) of the rotating disk 21 to the periphery. By setting two spiral grooves 211 at the bottom of the rotating disk 21, and sliding the ends of the first connecting rod 22 and the second connecting rod 23 in one of the spiral grooves 211, the spiral grooves 211 have a certain guiding property. During the rotation of the rotating disk 21, one end of the first connecting rod 22 and the second connecting rod 23 slides along the spiral groove 211 and moves closer to the center of the rotating disk 21. The first connecting rod 22 and the second connecting rod 23 make relative linear movements in space, thereby locking the door. As the rotating disk 21 rotates in the opposite direction, one end of the first connecting rod 22 and the second connecting rod 23 changes direction and slides along the spiral groove 211, while moving away from the center of the rotating disk 21. The first connecting rod 22 and the second connecting rod 23 make relative linear movements in space, thereby unlocking the door.
[0040] Furthermore, in one embodiment, such as Figure 3 As shown, both the first link 22 and the second link 23 slide within the helical groove 211 via sliding posts 221 at their ends. In this embodiment, by having both the first link 22 and the second link 23 slide within the helical groove 211 via sliding posts 221 at their ends, it is ensured that the first link 22 and the second link 23 maintain a stable motion trajectory during movement, which helps to reduce mechanical vibration and noise, and improve the stability and reliability of the overall mechanism.
[0041] Furthermore, in one embodiment, reference is made to Figure 4 , Figure 4 for Figure 1 A schematic diagram of the lower mounting bracket 12. Figure 4 As shown, a rotating groove 121 for rotating the rotating disk 21 is provided at the center of the top surface of the lower mounting base 12, and a linear groove 122 for linear reciprocating motion of the first connecting rod 22 and the second connecting rod 23 is provided on the opposite side of the top surface. The linear groove 122 is connected to the rotating groove 121. In this embodiment, the above structure ensures coordinated movement between the rotating disk 21, the first connecting rod 22 and the second connecting rod 23, while making the overall structure more compact.
[0042] Furthermore, in one embodiment, such as Figure 3 and Figure 4As shown, a rotating shaft 212 is located at the center of the bottom of the rotating disk 21, and a blind hole 1211 that mates with the rotating shaft 212 is provided in the rotating groove 121. In this embodiment, by providing a rotating shaft 212 at the center of the bottom of the rotating disk 21 and a blind hole 1211 that mates with the rotating shaft 212 in the rotating groove 121, the rotating disk 21 can maintain a stable central position during rotation, avoiding deviation or shaking. In addition, a clearance fit or transition fit should be used between the rotating shaft 212 and the blind hole 1211 to reduce friction between them.
[0043] Furthermore, in one embodiment, such as Figure 2 As shown, a cylindrical protrusion 213 is provided at the center of the top surface of the rotating disk 21. A linkage hole 2131 is opened at the center of the protrusion 213. The motor shaft 31 cooperates with the linkage hole 2131 to realize the transmission connection between the motor shaft 31 and the rotating disk 21. In this embodiment, by providing a cylindrical protrusion 213 in the middle of the top surface of the rotating disk 21 and opening a linkage hole 2131 at the center of the protrusion 213, the motor shaft 31 cooperates with the linkage hole 2131 to realize the transmission connection between the motor shaft 31 and the rotating disk 21. By utilizing the cooperation between the cylindrical protrusion 213 and the motor shaft 31, a precise transmission connection can be achieved, ensuring that the rotating disk 21 can rotate smoothly and accurately under the drive of the motor shaft 31, avoiding errors or malfunctions caused by inaccurate transmission.
[0044] Furthermore, in one embodiment, such as Figure 2 As shown, one end of the traction belt 4 is fixed to the outer wall of the protrusion 213 and can be wound around the outer wall of the protrusion 213. The other end of the traction belt 4 is provided with a traction rope 5. In this embodiment, the traction belt 4 can be used when the washing machine door lock malfunctions and cannot be unlocked, so as to achieve the effect of manually unlocking the door lock. By fixing one end of the traction belt 4 to the outer wall of the protrusion 213 and winding around the outer wall of the protrusion 213, when the door lock is locked, the motor shaft 31 drives the rotating disk 21 to rotate. One end of the traction belt 4 will rotate together with the connection point with the rotating disk 21 and be wound around the outer wall of the protrusion 213. When the washing machine door lock malfunctions and cannot be unlocked, simply pull the traction rope 5 at the other end of the traction belt 4 to drive the rotating disk 21 to rotate, thereby achieving the effect of manually unlocking the door lock. It should be noted that the traction rope 5 needs to be set outside the washing machine and has a loop at the end for easy pulling by the user.
[0045] Furthermore, in one embodiment, such as Figure 1As shown, the other end of the first connecting rod 22 is connected to one end of the third connecting rod 25 via an adjusting connecting seat 24. The other end of the third connecting rod 25 is movably connected to the inner wall of the washing machine, and a connecting rod fixing seat 26 is provided in the middle of the third connecting rod 25. In this embodiment, by connecting the other end of the first connecting rod 22 to one end of the third connecting rod 25 via the adjusting connecting seat 24, the connection length between the first connecting rod 22 and the third connecting rod 25 can be adjusted to adapt to different washing machine specifications. By movably connecting the other end of the third connecting rod 25 to the inner wall of the washing machine, and by providing a connecting rod fixing seat 26 in the middle of the third connecting rod 25, the movement trajectory of the first connecting rod 22 and the third connecting rod 25 can be restricted, preventing them from swinging.
[0046] Furthermore, in one embodiment, such as Figure 2 As shown, a microswitch 6 for controlling the bidirectional synchronous motor 3 to stop is installed on each side of the upper mounting base 11. An arc-shaped block 214 is provided on the top edge of the rotating disk 21. The microswitch 6 sends a control signal by contacting the actuating spring 61 of the microswitch 6 through the arc-shaped block 214. In this embodiment, the motor shaft 31 of the bidirectional synchronous motor 3 is mainly used to drive the rotating disk 21 to rotate. The rotating disk 21 drives the first connecting rod 22 and the second connecting rod 23 to perform relative reciprocating linear motion by rotating, thereby locking and unlocking the door lock. In practical applications, the displacement distance of the first connecting rod 22 and the second connecting rod 23 needs to be limited. Therefore, the microswitch 6 can be used to accomplish the above task. By installing a microswitch 6 for controlling the bidirectional synchronous motor 3 to stop on each side of the mounting base 1, and providing an arc-shaped block 214 on the top edge of the rotating disk 21, the microswitch 6 uses the arc-shaped block 214 as a "moving contact". The actuating spring 61 serves as a "fixed contact." When the arc-shaped block 214 rotates with the rotating disk 21 and comes into contact with the actuating spring 61 of one of the microswitches 6, a quick-connecting "switch" is formed. At this time, the microswitch 6 immediately sends a control signal, namely a signal to stop the bidirectional synchronous motor 3. When the arc-shaped block 214 rotates in the opposite direction with the rotating disk 21, the arc-shaped block 214 no longer comes into contact with the actuating spring 61 until it comes into contact with the actuating spring 61 of the microswitch 6 on the other side. This can effectively control the stop of the bidirectional synchronous motor 3 and limit the rotation angle of the rotating disk 21. It not only has good stability but also has controllability.
[0047] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0048] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0049] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A washing machine door lock switch, characterized in that, include: Mounting base (1), which has a cavity; The locking assembly (2) includes a rotating disk (21), a first connecting rod (22), and a second connecting rod (23). The rotating disk (21) is rotatably disposed in the cavity. One end of the first connecting rod (22) and the second connecting rod (23) are slidably disposed on opposite sides of the rotating disk (21), and the other ends of the two extend out of the cavity and are movably connected to the washing machine door and the inner wall of the washing machine, respectively. A bidirectional synchronous motor (3) is connected to the rotating disk (21) via a transmission connection. The traction belt (4) has one end set on the rotating disk (21) and the other end extends out of the washing machine, and the traction belt (4) can drive the rotating disk (21) to rotate.
2. The washing machine door lock switch as described in claim 1, characterized in that, The mounting base (1) includes an upper mounting base (11) and a lower mounting base (12), which are fastened together to form the cavity. The rotating disk (21) is rotatably mounted on the lower mounting base (12). The motor shaft (31) passes through the upper mounting base (11) and is connected to the rotating disk (21) in a transmission manner.
3. The washing machine door lock switch as described in claim 2, characterized in that, The bottom of the rotating disk (21) is provided with two spiral grooves (211), and the ends of the first connecting rod (22) and the second connecting rod (23) are each slidably disposed in one spiral groove (211); When the rotating disk (21) rotates in different directions, the first connecting rod (22) and the second connecting rod (23) perform relative linear reciprocating motion.
4. The washing machine door lock switch as described in claim 3, characterized in that, Both the first link (22) and the second link (23) slide within the spiral groove (211) via sliding pins (221) provided at their ends.
5. The washing machine door lock switch as described in claim 3, characterized in that, The lower mounting base (12) has a rotating groove (121) at the center of its top surface for the rotating disk (21) to rotate, and a straight groove (122) is provided on the opposite side of the top surface for the first connecting rod (22) and the second connecting rod (23) to perform linear reciprocating motion. The straight groove (122) is connected to the rotating groove (121).
6. The washing machine door lock switch as described in claim 5, characterized in that, The rotating disk (21) has a rotating shaft (212) at its bottom center, and the rotating groove (121) has a blind hole (1211) that cooperates with the rotating shaft (212).
7. The washing machine door lock switch as described in claim 1, characterized in that, The top surface of the rotating disk (21) has a cylindrical protrusion (213) at the center, and a linkage hole (2131) is opened in the center of the protrusion (213). The motor shaft (31) cooperates with the linkage hole (2131) to realize the transmission connection with the rotating disk (21).
8. The washing machine door lock switch as described in claim 7, characterized in that, One end of the traction belt (4) is fixed to the outer wall of the protrusion (213) and can be wound around the outer wall of the protrusion (213). The other end of the traction belt (4) is provided with a traction rope (5).
9. The washing machine door lock switch as described in claim 1, characterized in that, The other end of the first connecting rod (22) is connected to one end of the third connecting rod (25) through the adjusting connecting seat (24). The other end of the third connecting rod (25) is movably connected to the inner wall of the washing machine, and a connecting rod fixing seat (26) is provided in the middle of the third connecting rod (25).
10. The washing machine door lock switch as described in claim 2, characterized in that, On each side of the upper mounting base (11), there is a micro switch (6) for controlling the bidirectional synchronous motor (3) to stop running. An arc-shaped block (214) is provided on the top edge of the rotating disk (21). The micro switch (6) sends a control signal by contacting the actuating spring (61) of the micro switch (6) through the arc-shaped block (214).