Small washing machine door lock switch

Abstract

The utility model provides a door lock switch of a small washing machine. The door lock switch comprises a base; the transmission part is arranged in the base and is connected with the lock hook in an abutting mode; the control unit is clamped in the base, the control unit comprises a coil assembly, a movable piece, a limiting piece and a push rod matched with the transmission piece, the coil assembly is provided with a wire guide column, the transmission piece drives the push rod to slide, and the movable piece is arranged on the limiting piece. Therefore, the movable piece is pushed to be in contact with the wire column of the coil assembly for power on or separated from the wire column of the coil assembly for power off, so that the limiting piece locks or unlocks the transmission piece. According to the small washing machine door lock switch, the control unit is stacked on the base, the size of a door lock is reduced, when a door hook is locked, the transmission piece abuts against the lock hook, locking is conducted through the control unit, the supporting effect on a door cover is improved, and the phenomenon that the door cover shakes due to large pressure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of washing machine door lock technology, and more specifically to a small washing machine door lock switch. Background Technology

[0002] Washing machine door locks are usually located on the edge of the washing machine door. They are mainly used to lock the door while the washing machine is rinsing clothes, thereby preventing the door from opening accidentally during operation and ensuring user safety.

[0003] Traditional washing machine door locks consist of components such as a door hook, a locking assembly, and an electronic control assembly. During washing, the door hook engages with the locking assembly, and the electronic control assembly locks or unlocks the door. To achieve flexible switching between locking and unlocking, the locking assembly requires numerous mechanical parts and a long travel distance, resulting in a larger door lock size. Since small washing machines are smaller, the corresponding door lock needs to be smaller, and the load-bearing capacity of its internal mechanical parts is also reduced. When a small washing machine washes a large amount of laundry, the door is subjected to significant pushing force. Because the door lock has limited load-bearing capacity, the door may wobble, increasing the probability of safety hazards and affecting the normal operation of the small washing machine. Furthermore, if the door lock malfunctions, the washing machine may become unable to remove its contents. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies and to solve the issue that traditional washing machine door locks are not suitable for small washing machines.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solution: a small washing machine door lock switch, comprising:

[0006] A base, on which a rear cover is provided, and on which a locking hook and a torsion spring cooperating with the locking hook are provided;

[0007] A transmission component, which is disposed within the base and abuts against the locking hook;

[0008] The control unit is engaged within the base and includes a coil assembly, a moving piece, a limiting member, and a push rod that cooperates with the transmission member. The coil assembly is provided with a lead post.

[0009] The transmission component drives the push rod to slide, thereby pushing the moving plate to contact the lead post of the coil assembly to energize or disconnect it from the power supply, so that the limiting component locks or unlocks the transmission component.

[0010] In this embodiment of the utility model, the transmission component includes a first spring, a toothed slider, and a gear that cooperates with the toothed slider. The first spring is disposed between the toothed slider and the base.

[0011] The locking hook drives the toothed slider to slide within the base, thereby controlling the gear to push the push rod to make the moving piece move upward or downward, and the moving piece and the guide post are connected or disconnected.

[0012] In this embodiment of the utility model, a track is provided on the gear, the track includes a first track surface, an inclined surface and a second track surface, and the push rod slides back and forth between the first track surface and the second track surface through the inclined surface.

[0013] In this embodiment of the utility model, the control unit includes a housing and a housing cover that is engaged with the housing. The housing is engaged with the base. The coil assembly, moving piece, limiting member and push rod are all disposed inside the housing.

[0014] A large slider is provided inside the casing. One end of the large slider cooperates with the limiting member, while the other end cooperates with the coil assembly.

[0015] In this embodiment of the utility model, a first insert, a second insert, and a third insert are sequentially arranged inside the shell. The second insert is riveted to and electrically connected to the moving piece. A first contact and a second contact are respectively provided at both ends of the moving piece.

[0016] The first contact is electrically connected to the first insert, and the second contact is electrically connected to the third insert.

[0017] In this embodiment of the utility model, a limiting block is provided on the shell, and the large slider slides on the limiting block. A third spring is provided on one side of the limiting block to push the large slider, and a heart-shaped pull rod that cooperates with the large slider is provided on the other side of the limiting block.

[0018] In this embodiment of the utility model, the large slider is provided with a first slide platform, a third slide platform, a fourth slide platform and a second slide platform arranged in descending order of height. The second slide platform is connected to the first slide platform, and the third slide platform is provided with a limiting groove for the heart-shaped pull rod.

[0019] In this embodiment of the utility model, an unlocking unit is provided inside the base. The unlocking unit includes an emergency pull rod and a second spring. One end of the emergency pull rod is provided with a contact head that cooperates with the large slider.

[0020] The emergency pull rod has a mounting groove, a frustum is provided in the mounting groove, the base has an opening, a limiting platform is provided on one side of the opening, and the second spring is provided between the limiting platform and the frustum.

[0021] In this embodiment of the utility model, the back cover has a buckle plate and a conical groove, both of which engage with the base.

[0022] Compared with the prior art, the advantages of this application are: the control unit is stacked on the base, which reduces the volume of the door lock; when the door hook is locked, it abuts against the lock hook through the transmission component and is locked through the control unit, thereby improving the support effect on the door cover and avoiding the phenomenon of the door cover shaking under great pressure. Attached Figure Description

[0023] Figure 1 This is a front axonometric view of the overall door lock assembly and door hook;

[0024] Figure 2 This is a rear isometric view of the door lock assembly and door hook separated;

[0025] Figure 3 This is a schematic diagram showing the separation of the control unit and the door lock;

[0026] Figure 4 This is a schematic diagram of the assembly structure of the internal transmission components that are separated from the base;

[0027] Figure 5 This is a schematic diagram of the connection between the control unit and the transmission component in a partial cross-section of the base;

[0028] Figure 6 This is a top view of the rear cover separated from the base;

[0029] Figure 7 It is a plan view of the overall sectional view of the door lock;

[0030] Figure 8 This is a schematic diagram of the component structure of the transmission parts and the unlocking unit;

[0031] Figure 9 This is a schematic diagram of the internal parts assembly structure of the control unit, where the upper cover of the body is located on the body and separated from it;

[0032] Figure 10 This is a plan view of the control unit;

[0033] Figure 11 yes Figure 10 Enlarged view of section A in the middle;

[0034] Figure 12 This is an isometric view of the rear of the control unit;

[0035] Figure 13 This is a schematic diagram of the exploded structure of the parts in the unlocking unit on the back side of the base;

[0036] Figure 14 This is a schematic diagram of the emergency pull rod separated from the second spring from the front view;

[0037] Figure 15 This is a schematic diagram showing the assembly position of the base and the second spring;

[0038] Figure 16 This is an exploded disassembly diagram of all the components of the door lock.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Base; 11. Rear cover; 111. Buckle plate; 112. Conical groove; 113. Rotating shaft; 114. Locking hook; 115. Torsion spring; 116. Hook groove; 117. Hole 1; 12. Locking stop; 13. Hole 2; 14. Hole 3; 15. Opening; 16. Limiting platform; 17. Buckle; 18. Assembly groove;

[0041] 2. Door hook;

[0042] 3. Control unit; 30. Housing; 31. Coil assembly; 32. Lead post; 33. Push rod; 34. Moving piece; 341. First contact; 342. Second contact; 35. Housing cover; 36. Unlocking hole; 37. Large slider; 371. Third spring; 372. Limiting block; 373. Heart-shaped pull rod; 374. First slide; 375. Second slide; 376. Limiting groove; 377. Third slide; 378. Fourth slide; 38. Limiting component; 391. First insert; 392. Second insert; 393. Third insert;

[0043] 4. Unlocking unit; 41. Emergency pull rod; 42. Second spring; 43. Contact head; 44. Mounting slot; 441. Frustum;

[0044] 5. Transmission component; 51. Gear; 511. Sector-shaped meshing part; 512. Track; 5121. First track surface; 5122. Inclined surface; 5123. Second track surface; 54. Gear slider; 541. Rack part; 542. Groove; 543. Triangular block; 55. First spring. Detailed Implementation

[0045] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0046] like Figure 1-16 As shown, a small washing machine door lock switch includes:

[0047] The base 1 has a rear cover 11, a locking hook 114 and a torsion spring 115 that cooperates with the locking hook 114, and a hook groove 116 is provided on the locking hook 114.

[0048] Transmission component 5 is disposed within the base 1 and abuts against the locking hook 114;

[0049] Control unit 3 is engaged within the base 1, and the control unit 3 includes a coil assembly 31, a moving piece 34, a limiting member 38, and a push rod 33 that cooperates with the transmission member 5. The coil assembly 31 is provided with a lead post 32.

[0050] The transmission component 5 drives the push rod 33 to slide, thereby pushing the moving piece 34 to contact the lead post 32 of the coil assembly 31 to make it energized or disconnected from it, so that the limiting component 38 locks or unlocks the transmission component 5.

[0051] Specifically, the base 1 serves as the main body, supporting all the parts used in the door lock. The base 1 is mounted on the edge of the door cover. The installation process for the internal parts of the door lock is as follows: first, the parts in the transmission component 5 are assembled into the base 1; then, the control unit 3 is snapped onto the housing 30; and finally, the rear cover 11 is placed over the lock hook 114, thus completing the assembly of the washing machine door lock. It is compact in size, and the lock hook 114 has a large supporting force to prevent the door cover from shaking. When the moving piece 34 and the coil assembly 31 are energized, the limiting member 38 slides towards the toothed slider 54 under the drive of the large slider 37, and the end of the limiting member 38 is engaged in the toothed slider 54, thus restricting the movement of the toothed slider 54. Since the toothed slider 54 abuts against the lock hook 114, the lock hook 114 is in a locked state. When the moving piece 34 is de-energized from the coil assembly 31, the limiting member 38 moves away from the toothed slider. At this time, the toothed slider 54 slides on the base 1 under the pull of the first spring 55 to drive the gear 51 to rotate. At this time, the push rod 33 slides to the second track surface 5123 to push the moving piece 34 away from the coil assembly 31. Meanwhile, the locking hook 114 is pushed by the torsion spring 115 so that the locking hook 114 always abuts against the triangular block 543 of the toothed slider 54 (wherein, the triangular block 543 increases the contact area and effect with the side of the locking hook 114). As the toothed slider 54 is pulled back and slid, the hook groove 116 of the locking hook 114 slides toward the locking port 12, that is, the locking hook 114 is in the unlocked state.

[0052] Furthermore, a tapered groove 112, a snap plate 111, and a fixing post are respectively provided on the rear cover 11. The fixing post is inserted into the hole 13 of the base 1, the tapered groove 112 fits against the outer wall of the base 1, and finally the snap plate 111 engages with the base 1 to improve the assembly firmness between the rear cover 11 and the base 1. In addition, multiple sets of buckles 17 are provided on the outer wall of the housing 30 in the control unit 3 to improve the connection effect between the control unit 3 and the base 1. During the locking process of the door cover, the door hook 2 enters the base 1 through the locking port 12 and contacts the locking hook 114. As the door hook 2 gradually enters, it will engage. The hook 114 is rotated on the rear cover 11 within the hook groove 116, and the transmission member 5 slides within the base 1, causing the push rod 33 to slide downwards. The moving piece 34 is in contact with the lead post 32 of the coil assembly 31. At this moment, the coil assembly 31 is energized, causing the large slider 37 to slide towards the contact head 43. The limiting member 38 locks the transmission member 5 under the action of the large slider 37, thereby locking the hook 114 through the transmission member 5. The linkage effect of the transmission member 5 and the control unit 3 facilitates the locking of the hook 114, while the transmission member 5 improves the support effect of the hook 114.

[0053] As a further embodiment of this utility model, the transmission component 5 includes a first spring 55, a toothed slider 54, and a gear 51 that cooperates with the toothed slider 54. The toothed slider 54 has a groove 542, and a triangular block 543 that cooperates with the locking hook 114 is provided in the groove 542. The first spring 55 is located between the toothed slider 54 and the base 1. The locking hook 114 drives the toothed slider 54 to slide in the base 1, so as to control the gear 51 to push the push rod 33 to make the moving piece 34 move up or down. The moving piece 34 and the guide post 32 are connected or disconnected.

[0054] Specifically, when the door cover is locked against the washing machine, the door hook 2 drives the locking hook 114 to rotate. At this time, under the elastic action of the first spring 55, the toothed slider 54 slides towards the gear 51. As the toothed slider 54 moves, the gear 51 rotates a certain angle, causing the push rod 33 to slide downward. The moving piece 34 will be connected to the coil assembly 31 to drive the limiting member 38 to slide downward and fit against the toothed slider 54, keeping the toothed slider 54 stationary, that is, locking the locking hook 114. The rear cover 11 has a hole 3 14 to observe the rotation state of the locking hook 114. A rotating shaft 113 is mounted on the locking hook 114 and is rotatably connected to the rear cover 11. One side of the rotating shaft 113 is located on the locking hook 114 and has a hole 117. One end of the torsion spring 115 is fitted against the rear cover 11, while the other end is engaged in the hole 117 (e.g., Figure 4 , Figure 7 As shown), furthermore, both gear 51 and toothed slider 54 are flat bodies, and both are set at the bottom of the base 1, which improves the space utilization rate inside the base 1 and relatively reduces the overall volume of the door lock.

[0055] As a further embodiment of this utility model, a track 512 is provided on the gear 51. The track 512 includes a first track surface 5121, an inclined surface 5122, and a second track surface 5123. The push rod 33 slides back and forth between the first track surface 5121 and the second track surface 5123 via the inclined surface 5122.

[0056] Specifically, the track 512 has an inclined surface 5122, which forms an obtuse angle with the first track surface 5121, so that the push rod 33 can slide smoothly. When the moving piece 34 is connected to the coil assembly 31, the push rod 33 is at the lowest point of the track 512 (the lowest point is on the first track surface 5121). When the moving piece 34 is disconnected from the coil assembly 31, the push rod 33 is at the highest point of the track 512 (the highest point is on the second track surface 5123).

[0057] As a further embodiment of the present invention, the gear 51 is provided with a sector-shaped meshing portion 511, and the toothed slider 54 is provided with a rack portion 541 that meshes with the sector-shaped meshing portion 511.

[0058] Specifically, the number of teeth of the sector-shaped meshing part 511 and the rack part 541 is set to the rotation angle of the gear 51 or the moving distance of the toothed slider 54. This setting can improve the utilization rate of the internal space of the base 1, reduce the volume of the washing machine door lock, and at the same time, the meshing transmission improves the running stability and firmness of the transmission component 5.

[0059] As a further embodiment provided by this utility model, the control unit 3 includes a housing 30 and a housing cover 35 that is engaged with the housing 30. The housing 30 is engaged with the base 1. The coil assembly 31, the moving piece 34, the limiting member 38, and the push rod 33 are all disposed inside the housing 30. A large slider 37 is disposed inside the housing 30. One end of the large slider 37 cooperates with the limiting member 38, and the other end cooperates with the coil assembly 31.

[0060] Specifically, the control unit 3, also known as the "mechanical unit", controls the locking and unlocking of the transmission component 5 via the electrical control limiting component 38. The body shell 30 engages with the body shell cover 35 to form a receiving space, and all the components in the control unit 3 are housed within this receiving space, reducing the size of the washing machine door lock and improving the utilization rate of the internal space of the body shell 30.

[0061] As a further embodiment provided by this utility model, a first insert 391, a second insert 392 and a third insert 393 are sequentially arranged inside the housing 30. The second insert 392 is riveted and electrically connected to the moving piece 34. The two ends of the moving piece 34 are respectively provided with a first contact 341 and a second contact 342.

[0062] The first contact 341 is electrically connected to the first insert 391, and the second contact 342 is electrically connected to the third insert 393.

[0063] Specifically, one end of the first insert 391, the second insert 392, and the third insert 393 are all located on the outside of the housing 30 and connected to an external wire to control the switch of the coil assembly 31. The second insert 392 and the moving plate 34 are in a normally connected conductive state. When the door hook 2 is inserted into the lock hook 114, under the action of the transmission member 5, the push rod 33 moves downward so that the second contact 342 at one end of the moving plate 34 contacts the lead post 32. At this time, the second insert 392 and the third insert 393 are connected, and the coil assembly 31 drives the large slider 37 to lock in conjunction with the limiting member 38. At the same time, the first contact 341 at the other end of the moving plate 34 is attracted and connected to the first insert 391, which controls the second insert 392 to be connected to the first insert 391. When the door hook 2 disengages from the lock hook 114, the second contact 342 separates from the wire post 32, which means that the second insert 392 and the third insert 393 are disconnected. At the same time, the first contact 341 at the other end of the moving piece 34 also disconnects from the first insert 391.

[0064] As a further embodiment of this utility model, a limiting block 372 is provided on the shell 30, and the large slider 37 is located inside the shell 30 and slides relative to it through the limiting block 372. A third spring 371 is provided on one side of the limiting block 372 to push the large slider 37, and a heart-shaped pull rod 373 that cooperates with the large slider 37 is provided on the other side of the limiting block 372.

[0065] Specifically, the limiting block 372 is fixed to the body 30 to keep it stationary, and plays the role of guiding and limiting the large slider 37. The large slider 37 is reset by the third spring 371, while the heart-shaped pull rod 373 limits the stroke of the large slider 37 to realize the functions of locking, unlocking and emergency unlocking.

[0066] As a further embodiment of this utility model, the large slider 37 is provided with a first slide 374, a third slide 377, a fourth slide 378 and a second slide 375 arranged in descending order of height. The second slide 375 is connected to the first slide 374, and the third slide 377 is provided with a limiting groove 376 for the heart-shaped pull rod 373.

[0067] Specifically, when the door lock is in the locked state, the initial position of the heart-shaped lever 373 is at the second slide 375. The sliding process of the heart-shaped lever 373 is as follows: it slides from the second slide 375 to the first slide 374, the first slide 374 slides to the third slide 377, the third slide 377 slides to the fourth slide 378, and finally the fourth slide 378 slides back to the second slide 375. The above process is the heart-shaped lever 373 sliding counterclockwise one full circle (e.g., Figure 11(As shown in the figure). Among them, the first slide 374 and the second slide 375 are on an inclined plane, while the other two adjacent slides are on steps, so that the heart-shaped tie rod 373 cannot slide in the opposite direction.

[0068] As a further embodiment of this utility model, an unlocking unit 4 is provided in the base 1. The unlocking unit 4 includes an emergency pull rod 41 and a second spring 42. One end of the emergency pull rod 41 is provided with a contact head 43 that cooperates with the large slider 37. An installation groove 44 is provided on the emergency pull rod 41. A frustum 441 is provided in the installation groove 44. An opening 15 is provided on the base 1. A limiting platform 16 is provided on one side of the opening 15. The second spring 42 is provided between the limiting platform 16 and the frustum 441.

[0069] Specifically, an assembly groove 18 is provided on the base 1, and the emergency pull rod 41 is installed in the assembly groove 18. Buckles 17 are provided on both sides of the assembly groove 18 to limit the emergency pull rod 41. The specific installation process of the unlocking unit 4 is as follows: First, the emergency pull rod 41 is inserted into the assembly groove 18, so that the contact head 43 is installed at the unlocking hole 36 and aligned with the large slider 37. Then, one end of the second spring 42 is brought into contact with the limiting platform 16 from the opening 15, and the other end is snapped onto the frustum 441. In this way, the second spring 42 is fixed between the emergency pull rod 41 and the base 1 by the limitation of the limiting platform 16 and the frustum 441. This avoids the risk of the second spring 42 popping out of the installation groove 44 when the second spring 42 is installed first, effectively overcoming the rebound force when the second spring 42 is compressed, and improving the installation efficiency. The second spring 42 plays the role of resetting the emergency pull rod 41.

[0070] This utility model also discloses an emergency unlocking method for the door lock switch of a small washing machine, which specifically includes the following steps:

[0071] S01. First, pull the emergency lever 41 so that the contact head 43 at the end of the emergency lever 41 contacts the large slider 37 along the unlocking hole 36. The unlocking hole 36 serves as a guide so that the contact head 43 can better apply force to the large slider 37.

[0072] S02, the large slider 37 slides towards the coil assembly 31 inside the housing 30, and the heart-shaped pull rod 373 slides inside the first slide table 374 under the drive of the large slider 37. It continues to slide until it is limited at the maximum stroke and then stops, that is, it stops at the limit groove 376. At this time, the third spring 371 and the second spring 42 are both in a compressed state.

[0073] S03. Release the emergency pull rod 41. Under the push of the rebound force of the third spring 371 and the second spring 42, the large slider 37 and the emergency pull rod 41 slide away from the coil assembly 31.

[0074] S04, the heart-shaped pull rod 373 slides within the third slide table 377 under the linkage of the large slider 37 and stops within the limit groove 376. At this time, the locking hook 114 is in the unlocked state.

[0075] Further process: S05, pull the emergency lever 41 again. Since the stroke of the emergency lever 41 is fixed, the large slider 37 can only be pushed to the end of the third slide 377. Locking requires a larger stroke of the large slider 37 compared to unlocking. Therefore, the heart-shaped lever 373 cannot enter the locked position along the third slide 377, so pulling the emergency lever 41 can only unlock and not lock.

[0076] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0077] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A door lock switch for a small washing machine, characterized in that, include: A base (1) is provided with a rear cover (11), and a locking hook (114) and a torsion spring (115) cooperating with the locking hook (114) are provided on the rear cover (11). Transmission component (5), which is disposed in the base (1) and abuts against the locking hook (114); Control unit (3), the control unit (3) is engaged in the base (1), and the control unit (3) includes a coil assembly (31), a moving piece (34), a limiting member (38) and a push rod (33) that cooperates with the transmission member (5). The coil assembly (31) is provided with a lead post (32). The transmission component (5) drives the push rod (33) to slide, so as to push the moving piece (34) to contact the lead post (32) of the coil assembly (31) to make it energized or disconnected, so that the limiting component (38) locks or unlocks the transmission component (5).

2. The door lock switch for a small washing machine according to claim 1, characterized in that, The transmission component (5) includes a first spring (55), a toothed slider (54), and a gear (51) that cooperates with the toothed slider (54). The first spring (55) is disposed between the toothed slider (54) and the base (1). The locking hook (114) drives the toothed slider (54) to slide within the base (1) to control the gear (51) to push the push rod (33) to make the moving piece (34) move up or down, and the moving piece (34) and the guide post (32) are connected or disconnected.

3. A small washing machine door lock switch according to claim 2, characterized in that, A track (512) is provided on the gear (51). The track (512) includes a first track surface (5121), an inclined surface (5122), and a second track surface (5123). The push rod (33) slides back and forth between the first track surface (5121) and the second track surface (5123) through the inclined surface (5122).

4. A small washing machine door lock switch according to claim 2, characterized in that, The gear (51) is provided with a fan-shaped meshing part (511), and the tooth slider (54) is provided with a rack part (541) that meshes with the fan-shaped meshing part (511).

5. A small washing machine door lock switch according to claim 1, characterized in that, The control unit (3) includes a housing (30) and a housing cover (35) that is engaged with the housing (30). The housing (30) is engaged with the base (1). The coil assembly (31), the moving piece (34), the limiting member (38), and the push rod (33) are all disposed inside the housing (30). A large slider (37) is provided inside the shell (30), one end of which cooperates with the limiting member (38), and the other end of which cooperates with the coil assembly (31).

6. A small washing machine door lock switch according to claim 5, characterized in that, The shell (30) is provided with a first insert (391), a second insert (392) and a third insert (393) in sequence. The second insert (392) is riveted and electrically connected to the moving piece (34). The two ends of the moving piece (34) are respectively provided with a first contact (341) and a second contact (342). The first contact (341) is electrically connected to the first insert (391), and the second contact (342) is electrically connected to the third insert (393).

7. A small washing machine door lock switch according to claim 5, characterized in that, A limiting block (372) is provided on the shell (30), and the large slider (37) slides on the limiting block (372). A third spring (371) is provided on one side of the limiting block (372) to push against the large slider (37), and a heart-shaped pull rod (373) that cooperates with the large slider (37) is provided on the other side of the limiting block (372).

8. A small washing machine door lock switch according to claim 7, characterized in that, The large slider (37) is provided with a first slide (374), a third slide (377), a fourth slide (378), and a second slide (375) arranged in descending order of height. The second slide (375) is connected to the first slide (374). The third slide (377) is provided with a limiting groove (376) for the heart-shaped pull rod (373).

9. A small washing machine door lock switch according to claim 5, characterized in that, The base (1) is provided with an unlocking unit (4), which includes an emergency pull rod (41) and a second spring (42). One end of the emergency pull rod (41) is provided with a contact head (43) that cooperates with the large slider (37). The emergency pull rod (41) has an installation groove (44) and a frustum (441) is provided in the installation groove (44). The base (1) has an opening (15) and a limiting platform (16) is provided on one side of the opening (15). The second spring (42) is provided between the limiting platform (16) and the frustum (441).

10. A small washing machine door lock switch according to claim 1, characterized in that, The rear cover (11) has a buckle plate (111) and a conical groove (112) respectively, and the buckle plate (111) and the conical groove (112) are engaged with the base (1).

Images