A door lock device and a washing machine

Abstract

This invention discloses a door lock device and a washing machine. The door lock device includes a lock hook mechanism, which includes a lock seat with a lock hook shaft inside; a lock hook component and a limiting component, which rotate synchronously around the lock hook shaft to open or lock the door. A limiting engagement portion is provided on the side wall of the lock seat corresponding to the limiting component to restrict the reverse rotation of the lock hook component. The lock hook component and the limiting component are connected by a reversing transmission component. The reversing transmission component can convert the reverse displacement of the lock hook component along the circumferential direction of the lock hook shaft into an axial displacement that pushes the limiting component towards the limiting engagement portion, so that the limiting component is engaged and limited on the limiting engagement portion, restricting the reverse rotation of the lock hook component. By installing the above-mentioned door lock device between the inner drum and the inner drum door, this invention can effectively prevent the lock hook component from reversing and opening the inner drum door under centrifugal force during the washing or spin-drying process of the washing machine, thus avoiding serious safety accidents.

Description

Technical Field

[0001] This invention belongs to the technical field of clothing processing equipment, specifically, it relates to a door lock device and a washing machine. Background Technology

[0002] Washing machines, as one of the most widely used household appliances in people's daily lives, have helped people get rid of the hassle of laundry and brought them great convenience. Especially the front-loading washing machine with a perforated inner drum, where the drum opening is fitted with an openable / closable inner drum door, thus forming an internal chamber that can independently hold the wash water. In this way, during the washing and rinsing process, the wash water is contained within the inner drum, leaving no water between the inner and outer drums. This not only solves the problem of dirt accumulation between the inner and outer drums but also saves water consumption, making it very popular with consumers.

[0003] As can be seen from the structural characteristics of drum washing machines with non-perforated inner drums, maintaining the airtightness of the inner drum door during washing and rinsing is crucial for creating an independent internal chamber for holding the wash water. Therefore, a door lock device is installed between the inner drum and the inner drum door. However, during the high-speed spin-drying process of the inner drum, the door lock can easily be opened by centrifugal force, leading to serious safety accidents.

[0004] For example, invention patent application number 201910767613.0 provides a washing machine, including: an inner drum with an independent washing chamber for holding washing water; an inner drum door, which is closable and installed at the opening of the inner drum; and an inner drum door lock, the inner drum door lock including a lock seat assembly and a lock tongue assembly, the lock seat assembly being fixed to the wall of the inner drum opening, the lock tongue assembly being fixed to the inner drum door, the lock tongue assembly and the lock seat assembly lockingly engaging to lock the inner drum door, the lock seat assembly including a seat body, a lock hook, a lock seat liner and a lock seat connector, the lock hook being disposed on the seat body.

[0005] The inner cylinder door lock disclosed in the above application has a rotatable locking hook that is installed in the lock seat and has a certain weight. When the inner cylinder is rotating at high speed, the locking hook will reverse in a radial direction away from the center of the inner cylinder due to the centrifugal force, opening the inner cylinder door and causing a serious safety accident.

[0006] In view of this, the present invention is hereby proposed. Summary of the Invention

[0007] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a door lock device installed between the inner drum and the inner drum door of a washing machine. The door lock device provided by this invention, through its limiting component and reversing transmission component, can effectively prevent the locking hook from reversing and opening the inner drum door under centrifugal force during the washing or spin-drying process, thus avoiding serious safety accidents.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0009] A door lock device includes a lock hook mechanism, the lock hook mechanism comprising:

[0010] Lock seat, wherein a lock hook shaft is provided inside the lock seat;

[0011] The locking hook and limiting component rotate synchronously around the locking hook shaft to open or lock the door lock;

[0012] The side wall of the lock seat is provided with a limiting engagement part corresponding to the limiting member to restrict the reverse rotation of the lock hook member. The lock hook member and the limiting member are driven by a reversing transmission component.

[0013] The reversing transmission component can convert the reverse displacement of the locking hook along the circumferential direction of the locking hook axis into an axial displacement that pushes the limiting member to move closer to the limiting mating part, so that the limiting member is engaged and limited on the limiting mating part, thereby restricting the reverse rotation of the locking hook.

[0014] Furthermore, the reversing transmission component includes:

[0015] The first transmission component is disposed on the locking hook and has a driving surface;

[0016] The second transmission component is disposed on the limiting member corresponding to the first transmission component, and has a transmission surface that abuts against the driving surface;

[0017] The driving surface and / or the transmission surface are provided with a protruding stop top that has a height variation in the axial direction of the lock hook shaft. When the lock hook is reversed, the protruding stop top cooperates with the stop top of the driving surface or the transmission surface, pushing the limiting member to move outward along the axial direction of the lock hook shaft.

[0018] Furthermore, the locking hook component includes a locking hook base, and the reversing transmission component includes a first transmission sleeve fixed on the locking hook base;

[0019] The limiting component includes a limiting base, and the reversing transmission component further includes a second transmission sleeve correspondingly fixed on the limiting base.

[0020] The first transmission sleeve has at least a portion of its end face inclined to form a driving slope, and the second transmission sleeve has a transmission slope that abuts against the driving slope on its mating end face.

[0021] The driving inclined surface and the transmission inclined surface cooperate to form an inclined wedge mechanism, which converts the circumferential reverse displacement of the locking hook into an axial displacement that pushes the limiting member to move closer to the limiting mating part.

[0022] Furthermore, the locking hook base and the limiting base are respectively provided with locking hook shaft holes, and the first transmission sleeve and the second transmission sleeve are arranged along the outer periphery of the locking hook shaft hole and respectively sleeved on the locking hook shaft;

[0023] Preferably, the first transmission sleeve is integrally formed with the lock hook base, and the second transmission sleeve is integrally formed with the limiting base.

[0024] Furthermore, the lock base includes a base plate and a first support plate and a second support plate disposed opposite to each other on both sides of the base plate;

[0025] The limiting member is disposed near the first support plate, and the limiting mating part is correspondingly disposed on the first support plate. The limiting mating part has a limiting stop wall that restricts the upward rotation of the limiting member.

[0026] Preferably, the limiting fitting part is a limiting boss or a limiting slot provided on the first support plate corresponding to the limiting member.

[0027] Furthermore, a position holding mechanism is provided between the first support plate and the limiting member. The position holding mechanism applies a pushing force close to the locking hook member to the limiting member, so that the limiting member and the locking hook member are in a state of tight contact and engagement.

[0028] Preferably, the position holding mechanism is a first spring that is compressed between the first support plate and the limiting member, and the first spring is sleeved on the locking hook shaft;

[0029] More preferably, the first support plate is provided with a mounting groove for limiting the installation of the first spring.

[0030] Furthermore, a locking hook torsion spring is provided between the locking hook and the second support plate, and an elastic support is provided between the limiting member and the bottom plate;

[0031] Preferably, the locking hook torsion spring is disposed on the locking hook shaft, and the elastic support is a second spring connected between the limiting member and the base plate.

[0032] Furthermore, the locking hook base includes a first base and a second base connected at a set included angle. The first base has a locking hook portion at its end, which is made of a high-density metal material. The second base has a locking hook pressure plate at its end.

[0033] The limiting base has a limiting pressure plate on the end near the lock hook pressure plate side, and also includes an automatic unlocking mechanism. The automatic unlocking mechanism includes a power component and a transmission component. Under the action of the power component, the transmission component synchronously presses down the lock hook pressure plate and the limiting pressure plate to reverse the lock hook part and open the door lock.

[0034] Furthermore, it also includes a latch mechanism that cooperates with the latch mechanism to open or lock the door lock device, the latch mechanism including two opposite latches and a latch shaft disposed between the two latches;

[0035] It also includes a handle, which has a handle shaft and a latch torsion spring. The latch and the handle are rotatably mounted on the handle shaft. The handle and the latch cooperate to drive the latch shaft to rotate and cooperate with the lock hook mechanism to lock or unlock the door.

[0036] Furthermore, another object of the present invention is to provide a washing machine, the washing machine including an inner drum and an inner drum door that is openable and closable at the opening of the inner drum, and the aforementioned door lock device is provided between the inner drum and the inner drum door;

[0037] Preferably, the locking hook mechanism is disposed on the inner cylinder, and the locking tongue mechanism is disposed on the inner cylinder door.

[0038] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0039] 1. The door lock device provided by the present invention adds a limiting member. The limiting member and the lock hook can only be opened or locked when they rotate synchronously around the lock hook axis. The door lock can only be opened when the limiting member and the lock hook are pressed down synchronously, which improves security and reliability.

[0040] Furthermore, this invention also includes a reversing transmission component between the locking hook and the limiting component. This reversing transmission component converts the reverse displacement of the locking hook along its circumferential axis into an axial displacement that pushes the limiting component toward the limiting mating part, so that the limiting component engages and is limited on the limiting mating part, restricting the reverse rotation of the locking hook. This effectively prevents the locking hook from reversing and opening the door lock device under abnormal external forces, thus avoiding related safety accidents.

[0041] 2. By installing the aforementioned door lock device between the inner drum and the inner drum door of the washing machine, the present invention can effectively prevent the locking hook from reversing and opening the inner drum door under centrifugal force during the washing or spin-drying process, which could lead to serious safety accidents. At the same time, it also ensures the sealing effect of the inner drum throughout the entire washing process.

[0042] 3. The door lock device provided by this invention includes an automatic unlocking mechanism, which comprises a power component and a transmission component. Under the action of the power component, the transmission component synchronously presses down the lock hook plate and the limiting plate to reverse the lock hook and open the door lock. By driving the transmission component to simultaneously press down the lock hook plate and the limiting plate, the door lock can be automatically opened, which is convenient, efficient, and highly automated.

[0043] Furthermore, the door lock device provided by this invention allows for manual operation of the handle to disengage the bolt mechanism from the hook mechanism, thereby opening the door lock. This effectively prevents the inner cylinder door from being unable to open in case of unexpected situations such as failure of the automatic unlocking mechanism. Users can open the door lock using either the automatic unlocking mechanism or by manual operation, resulting in a better user experience.

[0044] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0045] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0046] Figure 1 This is a partial view of the inner cylinder, inner cylinder door, and door lock device in an embodiment of the present invention;

[0047] Figure 2 This is a partial view of the inner cylinder, inner cylinder door, and door lock device after the handle has been removed in an embodiment of the present invention;

[0048] Figure 3 This is an embodiment of the present invention. Figure 2 Sectional view along the AA direction;

[0049] Figure 4 This is an embodiment of the present invention. Figure 3 Sectional view along the BB direction;

[0050] Figure 5 This is a partial perspective view of the inner cylinder, inner cylinder door, and door lock device after the handle has been removed in an embodiment of the present invention;

[0051] Figure 6 This is a schematic diagram of the lock hook component without the lock seat in an embodiment of the present invention;

[0052] Figure 7 This is a structural schematic diagram of the locking hook mechanism at one angle in an embodiment of the present invention;

[0053] Figure 8 This is a schematic diagram of the locking hook mechanism from another angle in an embodiment of the present invention;

[0054] In the picture:

[0055] 1. Inner cylinder;

[0056] 2. Inner cylinder door;

[0057] 3. Locking hook mechanism;

[0058] 31. Locking hook component; 311. First base; 3111. Locking hook portion; 312. Second base; 3121. Locking hook pressure plate; 313. First transmission sleeve; 3131. Drive inclined surface;

[0059] 32. Limiting component; 3201. Clearance groove; 321. Second transmission sleeve; 3211. Transmission inclined surface; 322. First spring; 323. Limiting pressure plate; 324. Second spring;

[0060] 33. Lock base; 331. First support plate; 3311. Limiting mating part; 33111. Limiting stop wall; 332. Second support plate; 333. Base plate; 334. Support base platform; 3341. Receiving groove;

[0061] 34. Locking hook shaft; 35. Retaining ring; 36. Insert pin; 37. Reversing transmission component; 38. Locking hook torsion spring;

[0062] 4. Locking tongue mechanism; 41. Locking tongue; 42. Locking tongue shaft; 43. Handle; 44. Handle shaft; 45. Locking tongue torsion spring; 47. Handle groove;

[0063] 5. Automatic unlocking mechanism; 51. Motor; 52. Pressure rod;

[0064] 6. Outer cylinder;

[0065] 7. Inner cylinder door seals;

[0066] 8. Position detection bracket; 81. Bracket pivot; 82. Terminal to be detected; Z1. First position; Z2. Second position.

[0067] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0069] The present invention will be further described in detail below with reference to the embodiments.

[0070] Example 1

[0071] like Figures 1 to 8As shown, this embodiment is mainly intended to solve the problem that the locking hook mechanism 3 of the existing door lock device reverses and opens the door lock device when subjected to abnormal external force, which may cause related safety accidents.

[0072] Combined with appendix Figures 3 to 7 This embodiment provides a door lock device, including a lock hook mechanism 3, wherein the lock hook mechanism 3 includes:

[0073] Lock seat 33, wherein a lock hook shaft 34 is provided inside the lock seat 33;

[0074] The locking hook 31 and the limiting member 32 are two independent components that limit the movement in the circumferential direction, so that they rotate synchronously around the locking hook shaft 34 to open or lock the door lock.

[0075] The side wall of the lock seat 33 is provided with a limiting engagement part 3311 for limiting the reverse rotation of the lock hook 31, corresponding to the limiting member 32. The lock hook 31 and the limiting member 32 are engaged by a reversing transmission component 37.

[0076] Combination Figures 6 to 8 As shown, the reversing transmission component 37 can convert the reverse displacement of the locking hook 31 along the circumferential direction of the locking hook shaft 34 into an axial displacement that pushes the limiting member 32 to move closer to the limiting mating part 3311, so that the limiting member 32 is engaged and limited on the limiting mating part 3311, thereby restricting the reverse rotation of the locking hook 31.

[0077] The door lock device provided in this embodiment is equipped with a limiting member 32. The limiting member 32 and the lock hook member 31 can only be opened or locked by rotating synchronously around the lock hook shaft 34. The door lock can only be opened when the limiting member 32 and the lock hook member 31 are pressed down synchronously, which improves the safety and reliability.

[0078] Furthermore, this embodiment also includes a reversing transmission component 37 between the locking hook 31 and the limiting component 32. When the locking hook 31 has a tendency to reverse, the reversing transmission component 37 can convert the circumferential reversing displacement of the locking hook 31 along the locking hook shaft 34 into an axial displacement that pushes the limiting component 32 to move closer to the limiting mating part 3311. The locking hook 31 presses the limiting component 32 to move closer to the limiting mating part 3311, so that the limiting component 32 is engaged and limited on the limiting mating part 3311, preventing the locking hook 31 from continuing to reverse and effectively avoiding the phenomenon of the locking hook 31 opening under abnormal external force.

[0079] Since the limiting member 32 and the locking hook member 31 are limited in the circumferential direction and rotate synchronously in the circumferential direction, the locking hook member 31 cannot continue to rotate when the limiting member 32 is limited and fixed, thus achieving the purpose of restricting the reverse rotation of the locking hook member 31.

[0080] Furthermore, in one embodiment, the commutation drive component 37 includes:

[0081] The first transmission component is disposed on the locking hook 31 and has a driving surface;

[0082] The second transmission component is disposed on the limiting member 32 corresponding to the first transmission component, and has a transmission surface that abuts against the driving surface;

[0083] The driving surface and / or the transmission surface are provided with a protruding stop top that has a height variation in the axial direction of the locking hook shaft 34. When the locking hook 31 reverses, the protruding stop top cooperates with the stop top of the driving surface or the transmission surface, pushing the limiting member 32 to move outward along the axial direction of the locking hook shaft 34 and locking it in the limiting cooperation part 3311.

[0084] By forming a cam-like mechanism through the protruding stop top, the locking hook 31 and the limiting member 32 can be limited in the circumferential direction. On the other hand, when the locking hook 31 reverses, the protruding stop top has a certain height change in the axial direction of the locking hook shaft 34, which can drive the limiting member 32 to move outward in the axial direction and enter and engage in the limiting mating part 3311.

[0085] In the above scheme, the protruding stop top can be provided on both the driving surface and the transmission surface, or the protruding stop top can be provided on at least one mating surface.

[0086] Or in another implementation, such as Figures 5 to 8 As shown, the locking hook component 31 includes a locking hook base, and the reversing transmission component 37 includes a first transmission sleeve 313 fixed on the locking hook base. The limiting component 32 includes a limiting base, and the reversing transmission component 37 also includes a second transmission sleeve 321 correspondingly fixed on the limiting base; the end faces of the first transmission sleeve 313 and the second transmission sleeve 321 abut against each other.

[0087] Furthermore, such as Figures 6 to 8As shown, at least a portion of the end face of the first transmission sleeve 313 is inclined to form a driving inclined surface 3131, and the mating end face of the second transmission sleeve 321 forms a transmission inclined surface 3211 that abuts against the driving inclined surface 3131. The driving inclined surface 3131 and the transmission inclined surface 3211 cooperate to form a wedge mechanism, which converts the circumferential reverse displacement of the locking hook 31 into an axial displacement that pushes the limiting member 32 to move closer to the limiting mating part 3311. The driving inclined surface 3131 and the transmission inclined surface 3211 can be straight inclined surfaces or inclined surfaces with a certain curvature.

[0088] Through the transmission engagement of the driving inclined surface 3131 on the first transmission sleeve 313 and the transmission inclined surface 3211 on the second transmission sleeve 321, not only can the displacement of the reverse rotation of the locking hook 31 be converted into the axial displacement of the driving limiting member 32 moving towards the limiting engagement part 3311, but also the limiting member 32 and the locking hook 31 can be limited in the circumferential direction, so that the limiting member 32 and the locking hook 31 have a certain restraining force in the circumferential direction, and realize that the two rotate synchronously around the locking hook shaft 34.

[0089] Specifically, in one embodiment, the first transmission sleeve 313 includes a first semi-fitting sleeve, and the second transmission sleeve 321 includes a second semi-fitting sleeve that matches and engages with the first semi-fitting sleeve. The first and second semi-fitting sleeves are spliced ​​together in the circumferential direction to form a complete cylindrical structure. The first semi-fitting sleeve includes a first circumferential end wall and a first axial end wall connected to both sides of the first circumferential end wall. The second semi-fitting sleeve includes a second circumferential end wall and a second axial end wall connected to both sides of the second circumferential end wall. The first and second axial end walls abut and fit together.

[0090] Furthermore, the first axial end wall surface is a driving inclined surface 3131 that is gradually inclined from the side of the locking hook 31 towards the limiting member 32, and the inclination direction of the first axial end wall surface is opposite to the direction of reversal of the locking hook 31. Correspondingly, the second axial end wall surface is a mating inclined surface that is gradually inclined from the side of the limiting member 32 towards the locking hook 31, and the inclination direction of the second axial end wall surface is in the same direction as the direction of reversal of the locking hook 31. The mating inclined surface abuts against the driving inclined surface 3131. Through the above arrangement, it can be effectively ensured that the locking hook 31 can drive the limiting member 32 to move outward when reversing, so that the limiting member 32 can be locked and limited on the limiting mating part 3311.

[0091] Furthermore, the first transmission sleeve 313 and the second transmission sleeve 321 can be directly configured as semi-cylindrical structures to form a first semi-fitting sleeve and a second semi-fitting sleeve. Alternatively, the first transmission sleeve 313 and the second transmission sleeve 321 may also include cylindrical bases respectively connected to the locking hook base and the limiting base, wherein the first semi-fitting sleeve and the second semi-fitting sleeve are respectively protruding from the cylindrical base.

[0092] In the door lock device provided in this embodiment, the reversing transmission component 37 can be a cam mechanism or a wedge mechanism disposed between the lock hook 31 and the limiting member 32. Using a cam mechanism or a wedge mechanism to convert the circumferential reverse displacement of the lock hook 31 into an axial displacement that pushes the limiting member 32 toward the limiting mating part 3311 results in a simple structure that is easy to implement.

[0093] Furthermore, the locking hook base and the limiting base are respectively provided with locking hook shaft holes, and the first transmission sleeve 313 and the second transmission sleeve 321 are arranged along the outer periphery of the locking hook shaft holes and respectively sleeved on the locking hook shaft 34. Of course, the first transmission sleeve 313 and the second transmission sleeve 321 can also be arranged in any other position.

[0094] Preferably, such as Figures 6 to 8 As shown, the first transmission sleeve 313 is integrally formed with the lock hook base, and the second transmission sleeve 321 is integrally formed with the limiting base. The first transmission sleeve 313 and the lock hook base, and the second transmission sleeve 321 and the limiting base can be integrally formed by injection molding, without the need for other connecting structures or other connecting methods to connect and fix them, thereby improving manufacturing and assembly efficiency and simplifying the structure.

[0095] Furthermore, such as Figure 1 , Figure 5 , Figure 7 , Figure 8 As shown, the lock base 33 includes a base plate 333 and a first support plate 331 and a second support plate 332 disposed opposite to each other on both sides of the base plate 333; the limiting member 32 is disposed near the first support plate 331, and the locking hook member 31 is disposed near the second support plate 332. There is a gap between the limiting member 32 and the first support plate 331, and a gap between the locking hook member 31 and the second support plate 332, to avoid interfering with the normal rotation of the limiting member 32 and the locking hook member 31.

[0096] Furthermore, such as Figure 5 , Figure 7 , Figure 8As shown, the limiting engagement part 3311 is disposed on the first support plate 331 corresponding to the limiting member 32. The limiting engagement part 3311 has a limiting abutment wall 33111 that restricts the upward rotation of the limiting member 32. When the locking hook member 31 tends to reverse under the action of centrifugal force, the limiting member 32 can move towards the first support plate 331 by the cooperation of the driving inclined surface 3131 of the first transmission sleeve 313 and the transmission inclined surface 3211 of the second transmission sleeve 321. The limiting member 32 is squeezed and pushed into the limiting engagement part 3311, and the limiting abutment wall 33111 is engaged and limited above the limiting member 32, restricting the upward rotation of the limiting member 32. Since the first transmission sleeve 313 and the second transmission sleeve 321 have a certain restraining force in the circumferential direction, the locking hook member 31 cannot continue to reverse.

[0097] Because the hook portion 3111 at the end of the locking hook 31 has a high density and weight, it will rotate outward under the action of centrifugal force. Through the reverse rotation of the locking hook 31 and the inclined surface cooperation of the driving inclined surface 3131 and the transmission inclined surface 3211, the limiting member 32 moves linearly towards the first support plate 331. The limiting member 32 enters the limiting cooperation portion 3311, or a part of the limiting member 32 enters the limiting cooperation portion 3311. The limiting member 32 cannot move, which further reacts to the locking hook 31, making the locking hook 31 unable to continue to rotate.

[0098] Preferably, the limiting fitting part 3311 is a limiting boss or a limiting slot provided on the first support plate 331 corresponding to the limiting member 32.

[0099] In one implementation, such as Figure 5 , Figure 7 , Figure 8 The limiting engagement part 3311 shown is a limiting boss provided on the first support plate 331. The limiting boss protrudes from the side wall of the first support plate 331 near the limiting member 32. The lower wall of the limiting boss is slightly higher than the height of the top wall of the limiting member 32 in the locked state, and the lower wall of the limiting boss forms the limiting abutment wall 33111. When the limiting member 32 is pushed under the limiting boss, the limiting abutment wall 33111 blocks the limiting member 32 from reversing upwards, preventing the limiting member 32 from moving. This further reacts to the locking hook member 31, achieving the purpose of preventing the locking hook member 31 from reversing.

[0100] In another embodiment, the limiting engagement part 3311 is a limiting groove provided on the first support plate 331, which is a groove provided on the side wall of the first support plate 331 near the limiting member 32. The upper top wall of the limiting groove is slightly higher than the height of the top wall of the limiting member 32 in the locked state, and the lower bottom wall is lower than the height of the bottom wall of the limiting member 32 in the locked state. The upper top wall of the limiting groove forms the limiting abutment wall 33111. When the limiting member 32 is pushed into the limiting groove, the limiting abutment wall 33111 is located above the limiting member 32, restricting the limiting member 32 from reversing upwards. The limiting member 32 cannot move, further reacting to the locking hook member 31, thereby restricting the locking hook member 31 from reversing.

[0101] Furthermore, such as Figures 6 to 8 As shown, a position holding mechanism is provided between the first support plate 331 and the limiting member 32. The position holding mechanism applies a pushing force to the limiting member 32, bringing it closer to the locking hook member 31, so that the limiting member 32 and the locking hook member 31 are in a tight abutting engagement state. The position holding mechanism ensures that the mating surfaces of the first transmission sleeve 313 and the second transmission sleeve 321 are in a tight abutting engagement state, guaranteeing that they can mutually restrain each other in the circumferential direction. This allows for synchronous rotation of both and provides a certain force to limit the reverse rotation of the locking hook member 31.

[0102] Preferably, the position holding mechanism is a first spring 322 compressed between the first support plate 331 and the limiting member 32, and the first spring 322 is sleeved on the locking hook shaft 34. The position holding mechanism adopts a spring structure, which is low in cost and easy to implement.

[0103] More preferably, the first support plate 331 is provided with a mounting groove for limiting the installation of the first spring 322. One end of the first spring 322 is limited and installed in the mounting groove, and the other end abuts against the limiting member 32.

[0104] Under the action of the first spring 322, the driving inclined surface 3131 of the first transmission sleeve 313 and the transmission inclined surface 3211 of the second transmission sleeve 321 are closely matched to limit the limiting member 32 and the locking hook member 31 in the circumferential direction. They have a certain restraining force in the circumferential direction, so that the two need to rotate synchronously around the locking hook shaft 34 to open or lock the door lock.

[0105] Furthermore, a locking hook torsion spring 38 is provided between the locking hook 31 and the second support plate 332, which ensures that the locking hook 31 is kept in the locked position.

[0106] Furthermore, so Figures 5 to 7As shown, an elastic support is provided between the limiting member 32 and the base plate 333. The elastic support serves to support the limiting member 32 in the vertical direction, so that the limiting member 32 can be height matched with the locking hook member 31 in the vertical direction, and the second transmission sleeve 321 can abut against the first transmission sleeve 313.

[0107] Preferably, the locking hook torsion spring 38 is disposed on the locking hook shaft 34, one end of the locking hook torsion spring 38 is connected to the locking hook member 31, and the other end is connected to the second support plate 332, and the elastic support member is the second spring 324 connected between the limiting member 32 and the bottom plate 333.

[0108] More preferably, the second spring 324 is a helical compression spring connected between the limiting member 32 and the base plate 333. The helical compression spring can also better realize the return of the limiting member 32.

[0109] Furthermore, such as Figures 3 to 6 As shown, the locking hook base includes a first base 311 and a second base 312 connected at a set included angle. The end of the first base 311 is provided with a locking hook portion 3111. The locking hook portion 3111 is made of a metal material with a high density. Under the action of centrifugal force, the locking hook 31 will reverse outward due to the high density of the locking hook portion 3111 at the end. The reversing transmission component 37 causes the limiting member 32 to move outward and enter the limiting mating part 3311. The limiting mating part 3311 has a limiting abutment wall 33111 that restricts the upward rotation of the limiting member 32, thereby restricting the reversal of the locking hook 31.

[0110] Furthermore, a locking hook pressure plate 3121 is provided at the end of the second base 312, and a limiting pressure plate 323 is provided on the end of the limiting base near the locking hook pressure plate 3121. The locking hook pressure plate 3121 and the limiting pressure plate 323 are horizontally arranged straight pressure plates.

[0111] like Figure 1 , Figure 2 As shown, it also includes an automatic unlocking mechanism 5, which includes a power component and a transmission component. Under the action of the power component, the transmission component synchronously presses down the lock hook pressure plate 3121 and the limiting pressure plate 323 to reverse the lock hook part 3111 and open the door lock.

[0112] The power component is a drive motor 51 fixedly mounted on the outer cylinder 6 or the casing, and the transmission component is a pressure rod 52. Under the action of the drive motor 51, the pressure rod 52 is driven to simultaneously press down the lock hook pressure plate 3121 and the limiting pressure plate 323, so that the lock hook 31 can reverse outward and open the door lock device. An elastic element or a torsion spring is set in front of the inner cylinder door 2 and the inner cylinder 1 to automatically open the inner cylinder door 2 with elastic force.

[0113] The door lock device provided in this embodiment includes an automatic unlocking mechanism 5. The automatic unlocking mechanism 5 includes a power component and a transmission component. Under the action of the power component, the transmission component synchronously presses down the lock hook plate 3121 and the limit plate 323 to reverse the lock hook part 3111 and open the door lock. By driving the transmission component to simultaneously press down the lock hook plate 3121 and the limit plate 323, the door lock can be automatically opened, which is convenient, efficient, and highly automated.

[0114] Furthermore, such as Figures 1 to 5 As shown, the device also includes a latch mechanism 4 that cooperates with the latch mechanism 3 to open or lock the door lock. The latch mechanism 4 includes two opposing latches 41 and a latch shaft 42 disposed between the two latches 41. It also includes a handle 43, and the inner cylinder door 2 has a handle groove 47 for mounting the handle 43. The handle 43 has a handle shaft 44, and the latches 41 and the handle 43 are rotatably mounted on the handle shaft 44. The handle shaft 44 is provided with a latch torsion spring 45, one end of which is connected to the handle 43, and the other end is connected to the latches 41. The handle 43 cooperates with the latches 41 to drive the latch shaft 42 to rotate and cooperate with the latch mechanism 3 to lock or unlock the door lock.

[0115] After the inner cylinder door 2 is closed, the handle 43 can be lifted to allow the latch shaft 42 to enter the locking hook mechanism 3, and then the handle can be released. Under the action of the latch torsion spring 45, the latch shaft 42 hooks the locking hook 31, thus locking the door. When it is necessary to open the inner cylinder door 2, the handle 43 can be lifted to allow the latch shaft 42 to rotate downward and disengage from the locking hook 3111, thus unlocking manually.

[0116] The door lock device provided in this embodiment can also be manually operated by using the handle 43 to disengage the bolt shaft 42 from the lock hook mechanism 3, thereby opening the door lock. This effectively prevents the inner cylinder door 2 from being unable to open in case of unexpected situations such as failure of the automatic unlocking mechanism 5. Users can open the door lock using both the automatic unlocking mechanism 5 and manual operation, resulting in a better user experience.

[0117] Furthermore, another objective of the present invention is to provide a washing machine, the washing machine including an inner drum 1 and an inner drum door 2 which is openable and closable at the opening of the inner drum 1, and the aforementioned door lock device is provided between the inner drum 1 and the inner drum door 2.

[0118] Preferably, the locking hook mechanism 3 is disposed on the inner cylinder 1, and the locking tongue mechanism 4 is disposed on the inner cylinder door 2. Of course, the locking hook mechanism 3 can also be disposed on the inner cylinder door 2, and the corresponding locking tongue mechanism 4 can be disposed on the inner cylinder 1.

[0119] Since the handle 43 is much more convenient to operate when it is set on the inner cylinder door 2 than when it is set on the inner cylinder 1, in this embodiment, it is preferred to install the locking hook mechanism 3 on the inner cylinder 1 and the locking tongue mechanism 4 on the inner cylinder door 2.

[0120] This embodiment, by installing the aforementioned door lock device between the inner drum 1 and the inner drum door 2 of the washing machine, can effectively prevent serious safety accidents caused by the locking hook 31 reversing and opening the inner drum door 2 under centrifugal force due to the high-speed rotation of the inner drum 1 during the washing or spin-drying process. At the same time, it also ensures the sealing effect of the inner drum 1 throughout the entire washing process.

[0121] Preferably, such as Figure 3 As shown, an inner cylinder door seal 7 is also provided between the inner cylinder 1 and the inner cylinder door 2 to further ensure the sealing effect of the inner cylinder 1.

[0122] Example 2

[0123] like Figures 1 to 8 As shown, this embodiment provides a door lock device based on Embodiment 1, mainly to solve the problem that existing door lock devices are prone to failure to lock properly, which can lead to related safety accidents.

[0124] like Figures 3 to 5 as well as Figure 8 As shown, this embodiment provides a door lock device, including a lock hook mechanism 3, the lock hook mechanism 3 comprising:

[0125] Lock base 33;

[0126] The lock hook 31 is rotatably disposed within the lock base 33 to open or lock the door lock;

[0127] The position detection bracket 8 is rotatably mounted on the lock seat 33 at its middle part, with one end engaged with the lock hook 31 for limiting and the other end provided with the detection terminal 82.

[0128] Furthermore, such as Figures 3 to 5 As shown, the device also includes a latch mechanism 4 that cooperates with the latch mechanism 3 to open or lock the door lock. The latch mechanism 4 includes two oppositely arranged latches 41 and a latch shaft 42 disposed between the two latches 41. It also includes a handle 43 with a handle shaft 44. The latches 41 and the handle 43 are rotatably mounted on the handle shaft 44. A latch torsion spring 45 is provided on the handle shaft 44. One end of the latch torsion spring 45 is connected to the handle 43, and the other end is connected to the latches 41. The handle 43 cooperates with the latches 41 to drive the latch shaft 42 to rotate and cooperate with the latch mechanism 3 to lock or unlock the door lock.

[0129] The door lock device provided in this embodiment also allows for manual operation of the handle 43 to disengage the bolt shaft 42 from the lock hook mechanism 3, thereby opening the door lock. This effectively prevents the inner cylinder door 2 from being unable to open in case of unexpected situations such as failure of the automatic unlocking mechanism 5. Users can open the door lock using both the automatic unlocking mechanism 5 and manual operation, resulting in a better user experience.

[0130] In the above solution, the position detection bracket 8 can be used to determine whether the locking hook 31 is locked in place. When the locking hook 31 is in the open position, the door lock device is in the open state; when the locking hook 31 is in the locked position, the door lock device is in the locked state. The position detection bracket 8 is rotatably mounted on the lock seat 33, with one end engaging with the locking hook 31 and the other end having a detection terminal 82. When the position of the locking hook 31 changes, the position of the corresponding detection terminal 82 also changes accordingly. By detecting the position of the detection terminal 82, it is possible to determine whether the locking hook 31 is locked in place, avoiding situations where the door lock device is not fully locked and improving the safety of the washing machine operation.

[0131] Furthermore, such as Figures 3 to 5 As shown, the end of the lock hook 31 is provided with a lock hook portion 3111, which moves between a locked position and an open position to open or lock the door lock.

[0132] Specifically, after the inner cylinder door 2 is closed, the handle 43 can be lifted to allow the latch shaft 42 to enter the locking hook mechanism 3, and then the handle can be released. Under the action of the latch torsion spring 45, the latch shaft 42 hooks the locking hook 31, thus locking the door lock device. The locking hook 31 will remain in the locked position under the hooking force of the latch shaft 42. When it is necessary to open the inner cylinder door 2, the handle 43 can also be lifted to allow the latch shaft 42 to rotate downward and disengage from the locking hook 3111, thus manually unlocking. After unlocking, the locking hook 31 will rotate upward and remain in the open position under the action of the locking hook torsion spring 38.

[0133] Furthermore, such as Figure 5 and Figure 8 As shown, one end of the position detection bracket 8 is fixedly connected to the locking hook portion 3111 or limitedly connected to the locking hook portion 3111, and the other end is provided with the detection terminal 82. When the locking hook portion 3111 is in the locked position, the detection terminal 82 is located at the first position Z1, and when the locking hook portion 3111 is in the open position, the detection terminal 82 is located at the second position Z2.

[0134] In one embodiment, the position detection bracket 8 can be connected and fixed to the locking hook 31, for example, by means of screws or other connecting parts. Preferably, the position detection bracket 8 and the locking hook 3111 are movably connected, such as by a hinge, thus avoiding the lateral force effect on the position detection bracket 8 caused by a direct fixed connection. Alternatively, the position detection bracket 8 and the locking hook 3111 can be connected and fixed by a flexible connection, such as by means of a pull rope or other flexible connecting parts.

[0135] In another embodiment, the position detection bracket 8 and the locking hook 31 are limitedly connected by a limiting fit, meaning there is no substantial connection between the position detection bracket 8 and the locking hook 31. The end of the position detection bracket 8 can abut against the bottom of the locking hook portion 3111. Alternatively, a limiting receiving groove is provided on the locking hook 31, and the end of the position detection bracket 8 is limited within the limiting receiving groove.

[0136] For example, a spherical limiting receiving groove with a limiting opening on one side can be provided on the side of the locking hook portion 3111, and a spherical limiting part is provided at the end of the position detection bracket 8, which is limited within the spherical limiting receiving groove.

[0137] Furthermore, the position detection bracket 8 is a rotating support rod rotatably mounted on the lock seat 33 via a bracket pivot 81. The rotating support rod has a power end that cooperates with the lock hook 31 and a resistance end with a detection terminal 82. The distance from the resistance end of the rotating support rod to the bracket pivot 81 is greater than the distance from the power end of the rotating support rod to the bracket pivot 81. Through this design, when the lock hook 31 undergoes a slight displacement change, the position detection bracket 8 will cause a larger displacement change in the resistance end with the detection terminal 82, facilitating the detection of the position of the detection terminal 82 and enabling a more accurate determination of whether the door lock device is locked in place.

[0138] The door lock device provided in this embodiment adopts the above design. When the position of the lock hook 3111 of the lock hook 31 changes slightly, the displacement of the detected terminal end of the position detection bracket 8 will be amplified several times. This makes it easier for the position sensor to identify the position of the lock hook 31, and thus more accurately and efficiently determine whether the door lock device is locked in place. This improves the accuracy of detection and ensures the safety of the washing machine operation.

[0139] Furthermore, such as Figure 3 , Figure 5 , Figure 7 , Figure 8As shown, the lock seat 33 includes a first support plate 331 and a second support plate 332 disposed opposite to each other; a lock hook shaft 34 is disposed between the first support plate 331 and the second support plate 332, the lock hook 31 is rotatably disposed on the lock hook shaft 34, and the position detection bracket 8 is rotatably disposed on the first support plate 331 or the second support plate 332.

[0140] Preferably, the locking hook 31 is disposed on the locking hook shaft 34 near the second support plate 332, and the limiting member 32 is disposed on the locking hook shaft 34 near the first support plate 331. The limiting member 32 includes a limiting base, which is a strip-shaped structure with a certain thickness, and the limiting base is initially arranged laterally. The locking hook 31 includes a first base 311 and a second base 312 connected at a set angle. The second base 312 extends outward in a horizontal direction, and the first base 311 extends upward at an inclined direction. The angle between the first base 311 and the second base 312 is greater than 90°.

[0141] Preferably, such as Figure 5 , Figure 7 , Figure 8 As shown, in this embodiment, the position detection bracket 8 is set on the first support plate 331. Since the second support plate 332 is close to the lock hook 31, if the position detection bracket 8 is set on the second support plate 332, the length of the position detection bracket 8 will be limited. If the length of the position detection bracket 8 is too short, it will be unable to accurately detect the position change of the detected terminal 82, and thus it will be unable to accurately determine whether the door lock is locked.

[0142] Since the first support plate 331 is farther from the lock hook 31 than the second support plate 332, the position detection bracket 8 can be made relatively longer. A longer position detection bracket 8 allows for more accurate detection of position changes in the detected terminal 82, thus more accurately determining whether the door lock is locked. In this embodiment, the limiting base and the second base 312 are at the same height, and a clearance space is formed above the limiting base to avoid interference with the movement of the position detection bracket 8.

[0143] Furthermore, such as Figure 3 , Figure 5 , Figure 7 , Figure 8As shown, the locking hook portion 3111 is disposed at the upper end of the first base 311, and the end of the second base 312 is provided with a locking hook pressure plate 3121. The position detection bracket 8 is rotatably disposed above the first support plate 331. When the locking hook portion 3111 moves between the locked position and the open position, the position of the second end of the position detection bracket 8, which is provided with a magnet, will also change accordingly. By detecting the position of the detected terminal 82 on the second end of the position detection bracket 8, it can be inferred whether the door lock device is locked in place.

[0144] Preferably, such as Figure 8 As shown, the first support plate 331 is provided with a clearance groove 3201 for accommodating the installation of the position detection bracket 8. The position detection bracket 8 is rotatably mounted in the clearance groove 3201 via a bracket pivot 81. The clearance groove 3201 serves two purposes: firstly, it accommodates and installs the position detection bracket 8, preventing it from protruding outside the first support plate 331 and interfering with the installation of other components; secondly, it provides sufficient clearance space for the movement of the position detection bracket 8.

[0145] Specifically, such as Figures 6 to 8 As shown, the first support plate 331 includes a first support base at the bottom, and the second support plate 332 includes a second support base at the bottom. The locking hook shaft 34 is fixedly disposed between the first support base of the first support plate 331 and the second support base of the second support plate 332. The locking hook shaft 34 passes through the first support base and the second support base, and is limited and fixed on both sides by retaining rings 35 and pins 36, respectively.

[0146] The first support plate 331 further includes a support column connected to the first support base. The support column is disposed on the outside of the first support base, and an L-shaped step is formed between the support column and the first support base. A boss is provided on the support column, and the boss, the support column, and the first support base together form the clearance groove 3201. The bracket shaft 81 is fixedly disposed on the support column located within the clearance groove 3201, and the position detection bracket 8 is rotatably disposed on the bracket shaft 81.

[0147] In the above scheme, the avoidance groove 3201 can avoid the installation of the position detection bracket 8, providing sufficient avoidance space for the movement of the position detection bracket 8. On the other hand, the boss can also limit the extreme position of the upward movement of the position detection bracket 8.

[0148] Furthermore, such as Figure 5As shown, the lock base 33 further includes a support base 334 connected to both sides of the first support plate 331 and the second support plate 332; the support base 334 has a receiving groove 3341 near the first support plate 331, one end of the position detection bracket 8 is connected to the lock hook 31, and the other end extends into the receiving groove 3341. The support base 334 is fixed to the inner cylinder door 2.

[0149] This embodiment also provides a washing machine, including an inner drum 1 and an inner drum door 2 that is openable and closable at the opening of the inner drum 1. The aforementioned door lock device is provided between the inner drum 1 and the inner drum door 2. It also includes a position sensor, which detects the position of the detected terminal 82 to determine whether the locking hook mechanism 3 is locked in place.

[0150] Furthermore, the locking hook mechanism 3 is disposed on the inner cylinder 1, and the locking tongue mechanism 4 is disposed on the inner cylinder door 2; as... Figure 1 As shown, the washing machine also includes an outer drum 6 coaxially disposed outside the inner drum 1, and the position sensor is disposed on the outer drum 6 corresponding to the detected terminal 82; or, the washing machine also includes a casing, and the position sensor is disposed on the casing corresponding to the detected terminal 82.

[0151] Preferably, the position sensor is a Hall sensor or a reed switch, and the detected terminal 82 is a magnet disposed at the resistance end of the position detection bracket 8. The magnet can be a magnetic element such as a magnet.

[0152] This embodiment also provides a control method for the washing machine described above, wherein before or during the execution of the clothes processing program, the position sensor is activated to detect the position information of the detected terminal 82 and feed it back to the control unit.

[0153] The control unit infers whether the door lock is locked based on the position information of the detected terminal 82 fed back by the position sensor. If it is, the control unit keeps the door lock locked; otherwise, it pauses the clothes handling program and alerts the user. When the control unit detects that the door lock is not properly locked, it alerts the user while pausing the clothes handling program to prevent more serious safety accidents and improve the safety and reliability of the washing machine operation.

[0154] like Figures 3 to 5 , Figure 8As shown, when the locking tongue shaft 42 enters the locking hook 31, it can pry the end of the position detection bracket 8 with the detection terminal 82 from the second position Z2 to the first position Z1. The Hall sensor or reed switch on the outer cylinder 6 detects the detection terminal 82 and determines whether the inner cylinder door 2 is locked in place. If it is determined that the inner cylinder door 2 is not locked or is not locked in place, the user is promptly reminded to avoid related safety accidents caused by the inner cylinder door 2 not being locked.

[0155] The door lock device provided in this embodiment, through the addition of a position detection bracket 8, can amplify the displacement of the lock hook 31 when the door lock device is locked and unlocked, making it easier for the position sensor to detect, ensuring the accuracy of the detection, and greatly improving the safety of the washing machine, user health, and user experience. Moreover, the position detection bracket 8 has a simple structure, low manufacturing cost, and is easy to use and promote.

[0156] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A door lock device, comprising a lock hook mechanism, characterized in that, The locking mechanism includes: Lock base, with internal lock hook shaft; The locking hook and limiting component rotate synchronously around the locking hook shaft to open or lock the door lock; The side wall of the lock seat is provided with a limiting engagement part corresponding to the limiting member to restrict the reverse rotation of the lock hook member. The lock hook member and the limiting member are driven by a reversing transmission component. The reversing transmission component can convert the reverse displacement of the locking hook along the circumferential direction of the locking hook axis into an axial displacement that pushes the limiting member to move closer to the limiting mating part, so that the limiting member is engaged and limited on the limiting mating part, thereby restricting the reverse rotation of the locking hook.

2. The door lock device according to claim 1, characterized in that, The reversing transmission component includes: The first transmission component is disposed on the locking hook and has a driving surface; The second transmission component is disposed on the limiting member corresponding to the first transmission component, and has a transmission surface that abuts against the driving surface; The driving surface and / or the transmission surface are provided with a protruding stop top that has a height variation in the axial direction of the lock hook shaft. When the lock hook is reversed, the protruding stop top cooperates with the stop top of the driving surface or the transmission surface, pushing the limiting member to move outward along the axial direction of the lock hook shaft.

3. The door lock device according to claim 1, characterized in that, The locking hook component includes a locking hook base, and the reversing transmission component includes a first transmission sleeve fixed on the locking hook base; The limiting component includes a limiting base, and the reversing transmission component further includes a second transmission sleeve correspondingly fixed on the limiting base. The first transmission sleeve has at least a portion of its end face inclined to form a driving slope, and the second transmission sleeve has a transmission slope that abuts against the driving slope on its mating end face. The driving inclined surface and the transmission inclined surface cooperate to form an inclined wedge mechanism, which converts the circumferential reverse displacement of the locking hook into an axial displacement that pushes the limiting member to move closer to the limiting mating part.

4. The door lock device according to claim 3, characterized in that, The locking hook base and the limiting base are respectively provided with locking hook shaft holes. The first transmission sleeve and the second transmission sleeve are arranged along the outer periphery of the locking hook shaft hole and respectively sleeved on the locking hook shaft.

5. The door lock device according to claim 4, characterized in that, The first transmission sleeve is integrally formed with the locking hook base, and the second transmission sleeve is integrally formed with the limiting base.

6. The door lock device according to any one of claims 1-5, characterized in that, The lock base includes a base plate and a first support plate and a second support plate disposed opposite to each other on both sides of the base plate; The limiting member is disposed near the first support plate, and the limiting mating part is disposed on the first support plate. The limiting mating part has a limiting stop wall that restricts the upward rotation of the limiting member.

7. The door lock device according to any one of claims 6, characterized in that, The limiting engagement part is a limiting boss or a limiting slot provided on the first support plate corresponding to the limiting component.

8. The door lock device according to claim 6, characterized in that, A position holding mechanism is provided between the first support plate and the limiting member. The position holding mechanism applies a pushing force close to the locking hook to the limiting member, so that the limiting member and the locking hook are in a state of tight contact and engagement.

9. The door lock device according to claim 8, characterized in that, The position holding mechanism is a first spring that is compressed between the first support plate and the limiting member, and the first spring is sleeved on the locking hook shaft.

10. The door lock device according to claim 9, characterized in that, The first support plate is provided with a mounting groove for limiting the installation of the first spring.

11. The door lock device according to claim 6, characterized in that, A locking hook torsion spring is provided between the locking hook and the second support plate, and an elastic support is provided between the limiting member and the base plate.

12. The door lock device according to claim 11, characterized in that, The locking hook torsion spring is mounted on the locking hook shaft, and the elastic support is a second spring connected between the limiting member and the base plate.

13. The door lock device according to claim 3 or 4, characterized in that, The locking hook base includes a first base and a second base connected at a set included angle. The first base has a locking hook portion at its end, which is made of metal material. The second base has a locking hook pressure plate at its end. The limiting base has a limiting pressure plate on the end near the lock hook pressure plate side, and also includes an automatic unlocking mechanism. The automatic unlocking mechanism includes a power component and a transmission component. Under the action of the power component, the transmission component synchronously presses down the lock hook pressure plate and the limiting pressure plate to reverse the lock hook part and open the door lock.

14. The door lock device according to any one of claims 1-5, characterized in that, It also includes a latch mechanism that works with a latch mechanism to open or lock the door lock device. The latch mechanism includes two oppositely arranged latches and a latch shaft disposed between the two latches. It also includes a handle, which has a handle shaft and a latch torsion spring. The latch and the handle are rotatably mounted on the handle shaft. The handle and the latch cooperate to drive the latch shaft to rotate and cooperate with the lock hook mechanism to lock or unlock the door.

15. A washing machine, comprising an inner drum and an inner drum door that is openable and closable at the opening of the inner drum, characterized in that, A door lock device as described in any one of claims 1-14 is provided between the inner cylinder and the inner cylinder door.

16. The washing machine according to claim 15, wherein the locking hook mechanism is disposed on the inner drum, and the locking tongue mechanism is correspondingly disposed on the inner drum door.

Images