Door lock device and washing and protecting equipment

Abstract

The invention discloses a door lock device and washing and nursing equipment, the door lock device comprises a rotatable spring bolt, a locking protrusion is arranged on the peripheral wall of the spring bolt in a protruding mode, a locking hole capable of moving in the vertical direction is formed in the upper portion of the spring bolt, and the locking protrusion rotates along with the spring bolt and is inserted into the locking hole to be pre-locked with the locking hole. And after the locking hole moves downwards by a set distance, the locking rod is locked with the locking hole. Through the arrangement, the door body can automatically open a certain gap when the locking protrusion and the locking hole are pre-locked and can be locked when the locking protrusion and the locking hole are locked, on the basis that the door body is locked, electric appliance components such as a motor do not need to be additionally arranged to drive the door body to open the certain gap, and therefore the door body can be conveniently locked. And the use cost and the risk of failure of electrical components can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and specifically relates to a door lock device and a washing and care device. Background Art

[0002] With the progress of science and technology, people's living standards are getting higher and higher, and daily housework is gradually replaced by machines. Washing and care devices for clothing cleaning and care, as common household appliances in daily life, bring great convenience to people's lives. The washing and care device has a feeding port and a door body for opening and closing the feeding port. In order to prevent the door body from automatically opening the feeding port during the operation of the washing and care device, a door lock structure is usually required. The door lock structure generally includes a lock body provided on the main body of the washing and care device and a door hook provided on the door body. The door body and the main body of the washing and care device are firmly connected through the mutual cooperation of the lock body and the door hook, so that the door body will not automatically open the feeding port during the operation of the washing and care device, causing potential safety hazards. The existing door lock structure will automatically unlock after the clothes washing is completed to release the fastening connection between the door body and the washing and care device, but it cannot automatically open the door body by a certain gap. If the door body can be opened by a certain gap, it can promote the release and dissipation of water vapor inside the washing and care device, realize ventilation inside the washing and care device, avoid the appearance of mildew smell inside the washing and care device, and thus reduce user complaints.

[0003] In the prior art, a driving motor is added to the washing and care device to drive the door body to open a certain gap after the clothes washing is completed, so as to achieve the effect of opening the door for ventilation. However, due to the additional addition of motors and other related electrical components, the use cost will increase and the risk of failure of motors and other related electrical components will increase.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a door lock device and a washing and care device. When the locking protrusion is inserted into the locking hole to pre-lock with the locking hole when the lock tongue and the door hook are combined, and is locked with the locking hole after the locking hole moves down a set distance, the door body can be automatically opened by a certain gap when the locking protrusion pre-locks with the locking hole, and is locked when the locking protrusion locks with the locking hole. On the basis of realizing the locking of the door body, there is no need to additionally add electrical components such as motors to drive the door body to open a certain gap, which can reduce the use cost and the risk of failure of electrical components.

[0006] The basic concept of the technical solution adopted by the present invention to solve the above technical problem is:

[0007] The present invention provides a door lock device, which includes a door hook and a rotatable locking tongue. A locking protrusion is convexly provided on the outer peripheral wall of the locking tongue. A locking hole that can move up and down is provided above the locking tongue. The locking protrusion rotates with the locking tongue and inserts into the locking hole to be pre-locked with the locking hole, and is locked with the locking hole after the locking hole moves down a set distance.

[0008] Furthermore, the door lock device further includes a door hook. The locking tongue includes a disc-shaped base body that rotates around its own axis. The locking protrusion is provided on the outer peripheral wall of the base body. Two protrusions are also provided on the outer peripheral wall of the base body. The hook groove formed by the two protrusions is combined with the door hook when the locking protrusion is pre-locked with the locking hole. The locking protrusion is provided outside the hook groove and is spaced from the two protrusions.

[0009] Furthermore, the base body is divided into a first part and a second part that are symmetrically arranged with the center of the base body as the center. The two protrusions are provided on the outer peripheral wall of the first part, and the locking protrusion is provided on the outer peripheral wall of the second part.

[0010] Furthermore, the locking protrusion is strip-shaped and extends linearly from the outer peripheral wall of the second part. The first end in the protruding direction of the locking protrusion is the free end. The side walls of the locking protrusion are flush at the free end of the locking protrusion. The end surface of the second end in the protruding direction of the locking protrusion is an inclined surface, which is connected to and fits the outer peripheral wall of the second part.

[0011] Furthermore, the locking hole includes a locking section, a transition section, and a pre-locking section that are distributed in sequence in the up-down direction. The sizes of the locking section and the pre-locking section remain unchanged from top to bottom. The size of the transition section gradually increases from top to bottom. The locking protrusion rotates with the locking tongue and inserts into the pre-locking section, and is locked with the locking section after the locking hole moves down a set distance.

[0012] Furthermore, the front side and the lower side of the locking hole are open sides, the upper side, the left side, the right side, and the rear side of the locking hole are closed sides. The open side at the lower side of the locking hole serves as the insertion opening of the pre-locking section. The upper side wall, the left side wall, the right side wall, and the rear side wall of the locking section are in contact with the corresponding side walls of the locking protrusion.

[0013] Furthermore, the length of the left side wall of the pre-locking section extending downward is greater than the length of the right side wall of the pre-locking section extending downward.

[0014] Furthermore, the door lock device is provided with a locking block and a locking lever that extends horizontally left and right. The locking tongue is located below the first end of the locking lever. The locking block is located above the second end of the locking lever. The locking hole is provided at the bottom of the first end of the locking lever. The insertion opening of the locking hole faces the locking tongue. The first end of the locking lever moves down when the locking block and the locking lever are attracted.

[0015] Furthermore, a guiding structure for guiding the locking protrusion to insert into the locking hole and be pre-locked with the locking hole is provided at the bottom of the locking lever on the right side of the locking hole;

[0016] The locking lever is strip-shaped, and the guiding structure includes a guiding surface formed by the bottom surface of the locking lever on the right side of the locking hole gradually inclining downward from right to left. The guiding surface inclines downward to connect with the end surface at the bottom of the right side wall of the locking hole, and the guiding surface extends from the front side to the rear side of the right side wall of the locking hole.

[0017] The present invention also provides a washing and care device, on which the door lock device provided by the above technical solution is provided.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0019] 1. When the locking protrusion is inserted into the locking hole to be pre-locked with the locking hole when the lock tongue and the door hook are combined, and is locked with the locking hole after the locking hole moves down a set distance, the door body can be automatically opened by a certain gap when the locking protrusion and the locking hole are pre-locked, and is locked when the locking protrusion and the locking hole are locked. On the basis of realizing the locking of the door body, there is no need to additionally provide electrical components such as motors to drive the door body to open a certain gap, which can reduce the use cost and the risk of electrical component failure.

[0020] 2. By providing a guiding surface on the locking lever, the guiding surface can guide the locking protrusion to be inserted into the locking hole to be pre-locked with the locking hole, so that the locking protrusion can be more accurately inserted into the locking hole when rotating with the lock tongue without position deviation.

[0021] 3. By setting the length of the downward extension of the left side wall of the pre-locking section to be greater than the length of the downward extension of the right side wall of the pre-locking section, the locking protrusion can be blocked, so that the locking protrusion can be located in the locking hole, and it can prevent the locking protrusion from rotating excessively and being unable to be pre-locked with the locking hole in the locking hole.

[0022] The following further describes in detail the specific embodiments of the present invention with reference to the drawings. Description of the Drawings

[0023] The drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the drawings in the following description are only some embodiments, and those of ordinary skill in the art can also obtain other drawings according to these drawings without creative efforts. In the drawings:

[0024] Figure 1 is a schematic structural diagram of the door lock device provided by the embodiment of the present invention in the pre-locked position;

[0025] Figure 2 is Figure 1 an enlarged view at A;

[0026] Figure 3 It is a schematic structural diagram of the door lock device provided by the embodiment of the present invention in the locked position.

[0027] Icons: 1 - door hook; 11 - card hole; 2 - lock tongue; 21 - base body; 211 - first protrusion; 212 - second protrusion; 213 - hook groove; 214 - locking protrusion; 22 - rotating shaft; 3 - locking lever; 31 - locking hole; 311 - left side wall of the locking hole; 312 - right side wall of the locking hole; 313 - locking section; 314 - transition section; 315 - pre - locking section; 4 - locking block; 5 - guiding structure; 51 - guiding surface.

[0028] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] As Figure 1 and Figure 2 shown, the present invention provides a door lock device, including a door hook 1 and a rotatable lock tongue 2. A locking protrusion 214 is convexly provided on the outer peripheral wall of the lock tongue 2. A locking hole 31 that can move in the up - and - down direction is provided above the lock tongue 2. The locking protrusion 214 rotates with the lock tongue 2 and inserts into the locking hole 31 to be pre - locked with the locking hole 31, and is locked with the locking hole 31 after the locking hole 31 moves down a set distance.

[0033] In the embodiments of the present invention, through the above settings, it is possible to open a certain gap when the door body is pre-locked between the locking protrusion 214 and the locking hole 31, and lock when the locking protrusion 214 and the locking hole 31 are locked. On the basis of realizing the locking of the door body, there is no need to additionally install electrical components such as motors to drive the door body to open a certain gap, which can reduce the use cost and the risk of electrical component failure;

[0034] After the locking protrusion 214 and the locking hole 31 are unlocked, the locking protrusion 214 and the locking hole 31 are pre-locked, so that after the door body is opened by a certain gap, the inside of the washing and care device can be ventilated, and the generation of musty smell in the washing and care device can be avoided; the set distance of the locking hole 31 can ensure the locking of the locking protrusion 214 and the locking hole 31.

[0035] This door lock device is applied to washing and care devices, and the washing and care devices can be washing machines, washing and drying integrated machines, dishwashers, etc.; for example, when the washing and care device is a washing machine, the washing machine has the functions of washing and drying. When the washing and care device is a washing and drying integrated machine, the washing and care device can be a combination of a washing machine and a dryer. The door lock device has a pre-locking position where the locking protrusion 214 and the locking hole 31 are pre-locked and a locking position where the locking protrusion 214 and the locking hole 31 are locked;

[0036] When the washing and care device is a washing machine, the washing machine includes a treatment cylinder, and the treatment cylinder can have the functions of washing and drying. By opening a certain gap of the door body, the inside of the treatment cylinder is ventilated; when the washing and care device is a dishwasher, the dishwasher includes an inner tank, and the inner tank can have the functions of washing and drying. By opening a certain gap of the door body, the inside of the inner tank is ventilated. When locking, the locking protrusion 214 rotates with the lock tongue 2 and inserts into the locking hole 31 to be pre-locked with the locking hole 31. The locking protrusion 214 reaches the pre-locking position in the locking hole 31. After that, the locking protrusion 214 moves down a set distance in the locking hole 31 and then locks with the locking hole 31. The locking protrusion 214 reaches the locking position in the locking hole 31, realizing the locking of the door body on the washing and care device;

[0037] When ventilation is required inside the washing and care device after the laundry washing is completed, the locking protrusion 214 and the locking hole 31 are unlocked from the locking position. When unlocking, the locking hole 31 moves up to the reset position, the locking protrusion 214 and the locking hole 31 are unlocked, and the locking protrusion 214 reaches the pre-locking position in the locking hole 31. The locking protrusion 214 and the locking hole 31 are pre-locked, and a certain gap can be opened for the door body to ventilate the inside of the washing and care device. It should be noted that when the locking protrusion 214 is in the pre-locking position in the locking hole 31, the depth of the locking protrusion 214 inserted into the locking hole 31 is relatively small, and this depth enables the user to pull the locking protrusion 214 out of the locking hole 31 with very little force after the door lock is unlocked, so that the locking protrusion 214 is disengaged from the locking hole 31.

[0038] Such asFigure 1 and Figure 2 As shown in Figure 2 , in an embodiment of the present invention, the door lock device further includes a door hook 1. The lock tongue 2 includes a disk-shaped base body 21 that rotates around its own axis. A locking protrusion 214 is provided on the outer peripheral wall of the base body 21. Two protrusions are also provided on the outer peripheral wall of the base body 21. The hook groove 213 formed by the two protrusions is combined with the door hook 1 when the locking protrusion 214 and the locking hole 31 are pre-locked. The locking protrusion 214 is provided outside the hook groove 213 and is spaced from the two protrusions.

[0039] In an embodiment of the present invention, the door lock device further includes a lock case and a rotating shaft 22. The lock tongue 2, the rotating shaft 22, and the locking hole 31 are located inside the lock case. The axis of the base body 21 is coaxially arranged with the axis of the rotating shaft 22. The lock case is provided with a lock hole that allows the door hook 1 to be inserted into the lock case to cooperate with the hook groove 213 on the lock tongue 2. The two protrusions on the lock tongue 2 are respectively a first protrusion 211 and a second protrusion 212. A clamping hole 11 is provided on the door hook 1. The door hook 1 is inserted into the lock case and contacts the first protrusion 211, pushing the lock tongue 2 to rotate. As the lock tongue 2 rotates, the first protrusion 211 is clamped into the door hook 1, realizing the combination of the door hook 1 and the hook groove 213. When the door hook 1 is combined with the hook groove 213, the lock tongue no longer continues to rotate. At the same time, the locking protrusion 214 is inserted into the pre-locking position in the locking hole 31. At this time, the depth of the locking protrusion 214 inserted into the locking hole 31 allows the user to pull the locking protrusion 214 out of the locking hole 31 by overcoming a very small force. When the locking protrusion 214 is separated from the locking hole 31, the door hook 1 is pulled out of the hook groove 213, and the door hook 1 is separated from the hook groove 213, so that the door hook 1 comes out of the lock case. In addition, when the locking protrusion 214 is locked with the locking hole 31, the door hook 1 can be combined with the hook groove 213 more tightly.

[0040] The locking protrusion 214 is provided outside the hook groove 213 and is spaced from the first protrusion 211 and the second protrusion 212, which can enable the door hook 1 to be combined with the hook groove 213 while the locking protrusion 214 can rotate with the lock tongue 2 and be inserted into the locking hole 31, and the locking protrusion 214 is in the pre-locking position.

[0041] Figure 1It shows that the user manually pushes the door hook 1. The door hook 1 is inserted into the lock housing from left to right to engage with the lock tongue 2. The door hook 1 contacts the first protrusion 211 of the lock tongue 2, causing the lock tongue 2 to rotate counterclockwise, so that the locking protrusion 214 is inserted into the locking hole 31. The locking protrusion 214 is in the pre-locked position. After that, as the locking hole 31 moves down a set distance and locks with the locking protrusion 214, the locking protrusion 214 is in the locked position, realizing the locking of the door body; when the locking hole 31 moves upward, the locking hole 31 is unlocked from the locking protrusion 214. The locking protrusion 214 moves from the locked position to the pre-locked position in the locking hole 31, causing a certain gap to be opened in the door body. The user pulls the door hook 1 by hand, and the door hook 1 gradually disengages from the hook groove 213, causing the lock tongue 2 to rotate clockwise, so that the locking protrusion 214 comes out of the locking hole 31, and the door hook 1 comes out of the lock housing from right to left.

[0042] Furthermore, the base body 21 is divided into a first part and a second part that are symmetrically arranged with the center of the base body 21 as the center. Two protrusions are provided on the outer peripheral wall of the first part, and the locking protrusion 214 is provided on the outer peripheral wall of the second part. The positions of the first protrusion 211, the second protrusion 212 and the locking protrusion 214 are reasonably arranged, so that the locking protrusion 214 can be more accurately inserted into the locking hole 31, preventing the situation where the door hook 1 and the hook groove 213 are engaged, but the locking protrusion 214 is not inserted into the pre-locked position of the locking hole 31.

[0043] More specifically, the locking protrusion 214 is strip-shaped and extends linearly from the outer peripheral wall of the second part. The first end in the protruding direction of the locking protrusion 214 is the free end. The side walls of the locking protrusion 214 are flush at the free end of the locking protrusion 214. The end face of the second end in the protruding direction of the locking protrusion 214 is connected to and fits with the outer peripheral wall of the second part.

[0044] Since the lock tongue 2 is disc-shaped, the outer peripheral wall of the second part is arc-shaped, so that the end face of the second end in the protruding direction of the locking protrusion 214 is an inclined surface, which can increase the bonding strength between the end face of the second end in the protruding direction of the locking protrusion 214 and the outer peripheral wall of the second part, and improve the stability of the locking protrusion 214 on the lock tongue 2.

[0045] Furthermore, the locking hole 31 includes a locking section 313, a transition section 314 and a pre-locking section 315 that are distributed in sequence along the up and down directions. The sizes of the locking section 313 and the pre-locking section 315 remain unchanged from top to bottom, and the size of the transition section 314 gradually increases from top to bottom. The locking protrusion 214 is inserted into the pre-locking section 315 as the lock tongue 2 rotates, and locks with the locking section 313 after the locking hole 31 moves down a set distance.

[0046] With the above settings, the radial dimension of the locking section 313 is made smaller than that of the pre-locking section 315, so that the locking protrusion 214 does not abut against the inner side surfaces of the corresponding pre-locking section 315 within the pre-locking section 315, and abuts against the inner side surfaces of the corresponding locking section 315 within the locking section 313.

[0047] As Figure 1 and Figure 2 shown, in an embodiment of the present invention, the door lock device is provided with a locking block 4 and a locking lever 3 extending horizontally left and right. The locking tongue 2 is located below the first end of the locking lever 3, and the locking block 4 is located above the second end of the locking lever 3. A locking hole 31 is provided at the bottom of the first end of the locking lever 3, and the insertion opening of the locking hole 31 faces the locking tongue 2. The first end of the locking lever 3 moves downward when the locking block 4 and the locking lever 3 are attracted to each other.

[0048] In an embodiment of the present invention, the locking block 4 and the locking lever 3 are magnetically connected. When at rest, the locking lever 3 extends horizontally in the left-right direction. After being energized, the second end of the locking lever 3 is attracted to the locking block 4, and the locking block 4 attracts the second end of the locking lever 3 upward, so that the second end of the locking lever 3 moves upward, thereby causing the first end of the locking lever 3 to move downward, and further causing the locking hole 31 at the first end of the locking lever 3 to move downward, so as to realize the locking of the locking hole 31 and the locking protrusion 214, and realize the locking of the door lock device; after being powered off, the second end of the locking lever 3 is disengaged from the attraction with the locking block 4, so that the second end of the locking lever 3 moves downward, thereby causing the first end of the locking lever 3 to move upward, and the locking lever 3 is reset, realizing the unlocking of the locking hole 31 and the locking protrusion 214.

[0049] Further, the locking hole 31 is square, the front side and the lower side of the locking hole 31 are open sides, the upper side, the left side, the right side and the rear side of the locking hole 31 are closed sides, the open side at the lower side of the locking hole 31 serves as the insertion opening of the pre-locking section 315, and the upper side wall, the left side wall, the right side wall and the rear side wall of the locking section 313 abut against the corresponding side walls of the locking protrusion 214 when the locking protrusion 214 is locked with the locking section 313.

[0050] It should be noted that the distance that the locking lever 3 moves downward is very short, and basically does not affect the abutment between the side walls of the locking hole 31 and the corresponding side walls of the locking protrusion 214. The so-called abutment here can be complete abutment or partial abutment.

[0051] As Figure 1 shown, in an embodiment of the present invention, a guiding structure 5 for guiding the locking protrusion 214 to be inserted into the locking hole 31 for pre-locking with the locking hole 31 is provided at the bottom on the right side of the locking lever 3.

[0052] In an embodiment of the present invention, the guiding structure 5 is provided to guide the locking protrusion 214 into the insertion locking hole 31 for pre-locking with the locking hole 31. Specifically, the locking protrusion 214 is guided into the pre-locking section 315 for locking with the pre-locking section 315, so that when the locking protrusion 214 rotates with the lock tongue 2, it can be more accurately inserted into the locking hole 31 without position deviation.

[0053] Specifically, the locking lever 3 is elongated. The guiding structure 5 includes a guiding surface 51 formed by the bottom surface of the locking lever 3 on the right side of the locking hole 31 gradually sloping downward from right to left. The guiding surface 51 slopes downward to connect with the end surface at the bottom of the right side wall 312 of the locking hole, and the guiding surface 51 extends from the front side to the rear side of the right side wall 312 of the locking hole.

[0054] The locking protrusion 214 rotates counterclockwise with the lock tongue 2. The locking protrusion 214 first contacts the right side of the guiding surface 51 at a higher position. As the lock tongue 2 continues to rotate counterclockwise, the locking protrusion 214 moves along the guiding surface 51 to the left side of the guiding surface 51 at a lower position, and moves to the end surface at the bottom of the right side wall of the locking hole 31 and enters the locking hole 31. During this process, the position of the locking lever 3 changes relatively little.

[0055] The guiding surface 51 is set to extend from the front side to the rear side of the right side wall 312 of the locking hole, so that the area where the guiding surface extends in the front-rear direction can cover the area where the right side wall 312 of the locking hole extends in the front-rear direction, so that the guiding surface 51 can guide the locking protrusion 214 into the locking hole 31.

[0056] Further, the length of the downward extension of the left side wall of the pre-locking section 315 is greater than the length of the downward extension of the right side wall of the pre-locking section 315. Through the above setting, when the guiding surface 51 guides the locking protrusion 214 into the locking hole 31 for pre-locking with the locking hole 31, specifically, when the locking protrusion 214 is guided into the pre-locking section 315 for pre-locking with the pre-locking section 315, the left side wall 311 of the locking hole with a longer downward extension length can block the locking protrusion 214, so that the locking protrusion 214 can be in the locking hole 31, and it can prevent the locking protrusion 214 from rotating excessively and being unable to pre-lock with the locking hole 31 in the locking hole 31.

[0057] The above are only the preferred embodiments of the present invention, and there is no limitation to the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above as equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A door lock device, comprising a rotatable locking tongue, characterized in that, On the outer peripheral wall of the locking tongue, locking protrusions are provided in a protruding manner. Above the locking tongue, a locking hole that can move in the up and down direction is provided. The locking protrusions are inserted into the locking hole along with the rotation of the locking tongue for pre-locking with the locking hole, and are locked with the locking hole after the locking hole moves down a set distance.

2. The door lock device according to claim 1, characterized in that, The door lock device further includes a door hook. The locking tongue includes a disk-shaped base body that rotates around its own axis. The locking protrusions are provided on the outer peripheral wall of the base body. Two protrusions are also provided on the outer peripheral wall of the base body. The hook groove formed by the two protrusions is combined with the door hook when the locking protrusions are pre-locked with the locking hole. The locking protrusions are provided outside the hook groove and are spaced from the two protrusions.

3. The door lock device according to claim 2, wherein, The base body is divided into a first part and a second part that are symmetrically arranged with the center of the base body as the center. The two protrusions are provided on the outer peripheral wall of the first part, and the locking protrusions are provided on the outer peripheral wall of the second part.

4. The door lock device according to claim 3, characterized in that, The locking protrusions are strip-shaped and extend linearly starting from the outer peripheral wall of the second part. The first end in the protruding direction of the locking protrusions is the free end. The side walls of the locking protrusions are flush at the free end of the locking protrusions. The end face of the second end in the protruding direction of the locking protrusions is an inclined surface that is connected to and fits the outer peripheral wall of the second part.

5. The door lock device according to any one of claims 1 to 4, characterized in that The locking hole includes a locking section, a transition section, and a pre-locking section that are distributed in sequence in the up and down direction. The sizes of the locking section and the pre-locking section remain unchanged from top to bottom. The size of the transition section gradually increases from top to bottom. The locking protrusions are inserted into the pre-locking section along with the rotation of the locking tongue, and are locked with the locking section after the locking hole moves down a set distance.

6. The door lock device according to claim 5, characterized in that, The front side and the lower side of the locking hole are open sides. The upper side, left side, right side, and rear side of the locking hole are closed sides. The open side at the lower side of the locking hole serves as the insertion opening of the pre-locking section. The upper side wall, left side wall, right side wall, and rear side wall of the locking section are in contact with the corresponding side walls of the locking protrusions when the locking protrusions are locked with the locking section.

7. The door lock device according to claim 6, characterized in that, The length of the left side wall of the pre-locking section extending downward is greater than the length of the right side wall of the pre-locking section extending downward.

8. The door lock device according to any one of claims 1 to 7, characterized in that, The door lock device is provided with a locking block and a locking lever that extends horizontally left and right. The locking tongue is located below the first end of the locking lever. The locking block is located above the second end of the locking lever. The locking hole is provided at the bottom of the first end of the locking lever. The insertion opening of the locking hole faces the locking tongue. The first end of the locking lever moves down when the locking block and the locking lever are attracted and combined.

9. The door lock device according to claim 8, characterized in that, At the bottom of the locking lever on the right side of the locking hole, a guiding structure for guiding the locking protrusions to be inserted into the locking hole for pre-locking with the locking hole is provided; The locking lever is strip-shaped. The guiding structure includes a guiding surface formed by the bottom surface of the locking lever on the right side of the locking hole gradually sloping downward from right to left. The guiding surface slopes downward to be connected to the end face at the bottom of the right side wall of the locking hole. The guiding surface extends from the front side to the rear side of the right side wall of the locking hole.

10. A washing and care device, characterized in that, The door lock device according to any one of claims 1-9 is provided on the washing and care equipment.

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