Water box assembly and washing machine

Abstract

The application discloses a water box assembly and a washing machine, which comprises a water box body and a drawer, the drawer is used for being inserted into the water box body and can slide forward and backward relative to the water box body; a pusher is arranged on the rear inner wall of the water box body; the pusher can elastically stretch and contract along the front and back directions and is located on the sliding path of the drawer; a positioning needle is arranged on the outer bottom wall of the drawer; a pusher buckle is detachably arranged on the inner bottom wall of the water box body; the pusher buckle is provided with a clamping position and a directional channel, the directional channel is communicated with the clamping position, the pusher buckle can rotate relative to the water box body, the positioning needle can reciprocate between the directional channel and the clamping position, the inlet and outlet of the directional channel are located on the moving path of the positioning needle, when the positioning needle is located in the clamping position, the drawer is in a closed state, the pusher is in a compressed state, and the positioning needle can move backward in the clamping position to move to the directional channel under the drive of the pusher, so that the drawer is pulled open and then pressed to be pushed open, and the drawer opening and closing is more labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, and in particular to a water tank assembly and a washing machine. Background Technology

[0002] The water tank assembly includes a water tank body and a drawer. The drawer can be pulled out relative to the water tank body to add cleaning products such as laundry detergent, fabric softener, and disinfectant.

[0003] To achieve drawer locking within the water tank assembly, existing technologies employ locking structures on both the front and rear sides of the water tank body and the front and rear sides of the drawer. The drawer opens and closes through the engagement and disengagement of these two pairs of locking structures. One locking structure has a protruding latch, and the other has a slot. The insertion and removal of the protruding latch and the slot depends on the deformation of the locking structure with the slot. In other words, the user needs to apply a certain force to the drawer to deform the locking structure with the slot and overcome the friction between the two locking structures, resulting in a noticeable obstruction when closing or opening the drawer, making both opening and closing the drawer quite strenuous.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a water box assembly and a washing machine in view of the above-mentioned defects of the prior art. The aim is to solve the problem that the opening and closing of the drawer in the prior art both require the deformation of the locking structure and the overcoming of the friction between the locking structures, which makes the opening and closing of the drawer relatively difficult.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows: A water tank assembly includes a water tank body and a drawer, the drawer being inserted into the water tank body and slidable back and forth relative to the water tank body, and further comprising: A pusher is provided on the rear inner wall of the water box body; the pusher can elastically extend and retract along the front and back and is located on the sliding path of the drawer; A positioning pin is provided on the outer bottom wall of the drawer; The push-button latch is detachably mounted on the inner bottom wall of the water box body; The push-tap latch is provided with a locking position and a directional channel. The directional channel is connected to the locking position, and the push-tap latch can rotate relative to the water box body so that the positioning pin can reciprocate between the directional channel and the locking position. The inlet and outlet of the directional channel are located on the movement path of the positioning pin. When the positioning pin is in the locking position, the drawer is in a closed state, the pusher is in a compressed state, and the positioning pin can move backward in the locking position to move to the directional channel under the drive of the pusher.

[0007] The water tank assembly, wherein the pusher includes: The outer casing; the rear end of the outer casing has an opening; The first elastic element is located inside the housing and is connected to the rear inner wall of the housing; A push rod unit is located on the front side of the housing; one end of the push rod unit is located outside the housing, and the other end is inserted into the housing through the opening and connected to the first elastic element.

[0008] The water box assembly, wherein the push rod unit includes: The adapter shell has one end inserted into the outer shell through the opening and connected to the first elastic element, and the other end has a plug-in interface. The second elastic element is located inside the adapter shell and is connected to the rear inner wall of the adapter shell. The push rod has one end inserted into the adapter housing through the insertion interface and connected to the second elastic element, and the other end extends forward to the outside of the adapter housing and is used to abut against the drawer.

[0009] The water box assembly, wherein the push-spring latch includes: A base plate for rotatably assembling with the water box body; M-shaped retaining ribs are installed on the base plate with their openings facing forward; Two limiting ribs are respectively connected to the two side walls of the opening of the M-shaped baffle to form the directional channel together with the M-shaped baffle. A locking protrusion is provided on the base plate and located within the M-shaped retaining rib; the locking protrusion and the concave angle of the M-shaped retaining rib are arranged opposite each other to form the locking position between the locking protrusion and the concave angle, and to divide the directional channel into a forward opening channel and a rear closing channel arranged on the left and right; both the forward opening channel and the rear closing channel are connected to the locking position.

[0010] In the water box assembly, a V-shaped guide groove is provided on the side of the card protrusion facing the concave angle; the inner angle of the V-shaped guide groove is obliquely arranged relative to the concave angle toward the forward opening channel, and the oblique side of the V-shaped guide groove near the rear closing channel corresponds to the sharp angle of the concave angle.

[0011] In the water box assembly, a V-shaped guide portion is provided on the side of the card protrusion away from the concave angle. The guide angle of the V-shaped guide portion is obliquely arranged toward the forward opening channel so that the outlet width of the forward opening channel is smaller than the inlet width of the rear closing channel.

[0012] The water tank assembly, wherein the base plate includes: The rotating part is arc-shaped, and the center of the rotating part overlaps with the rotation center of the base plate; two limiting ribs are provided on the rotating part; The connecting part is integrally formed with the rotating part; the M-shaped baffle is provided on the connecting part.

[0013] The water tank assembly further includes: The water tank body is provided with a slot, and the snap-on support is detachably disposed in the slot. The top surface of the buckle support is provided with a receiving groove, and the push-spring buckle is rotatably disposed in the receiving groove and detachably assembled with the buckle support.

[0014] The water tank assembly, wherein the push-spring latch further includes: Two hooks are provided at the bottom of the rotating part and arranged radially along the rotating part; the receiving groove is provided with two arc-shaped through holes corresponding to the rotating part, and the arc-shaped through holes correspond one-to-one with the hooks. The hooks pass through the arc-shaped through holes and engage with the buckle support; the hooks can rotate relative to the buckle support. The first guide rib is disposed at the rear end of the M-shaped retaining rib; At least one second guide rib is disposed at the rear end of the connecting portion and a gap is provided between it and the first guide rib in the vertical direction; a third guide rib is disposed in the receiving groove and the third guide rib is located within the gap.

[0015] A washing machine comprising a water tank assembly as described in any of the above claims.

[0016] Beneficial effects: In this application, the position of the positioning pin within the push-spring latch is changed by the assistance of the push-spring mechanism and the rotation of the push-spring latch. When the positioning pin moves into the engagement position, the drawer is closed. When the positioning pin moves from the engagement position into the directional channel and disengages from the push-spring latch with the assistance of the push-spring mechanism, the drawer can be opened. Closing the drawer only requires overcoming the elastic deformation force of the push-spring mechanism, while opening the drawer not only does not require overcoming the elastic deformation force of the push-spring mechanism, but the elastic deformation force of the push-spring mechanism can also assist in opening the drawer, thereby reducing the obstruction of opening and closing the drawer. At the same time, the traditional handle structure is no longer needed on the drawer (or its connecting decorative parts). When using it, the pull-opening method is changed to a press-open method, which makes the drawer opening and closing more effortless and ensures the overall appearance and visual cleanliness of the washing machine. Attached Figure Description

[0017] Figure 1 This is a reference diagram showing the usage state of the water box assembly when the drawer is in the closed state in this utility model; Figure 2 This is a reference diagram showing the usage state of the water box assembly when the drawer is in the open state in this utility model; Figure 3 This is an exploded view of the water box assembly when the drawer is closed in this utility model. Figure 4 This is an exploded view of the water box assembly when the drawer is in the open state in this utility model. Figure 5 This is a schematic diagram showing the positioning state of the positioning pin in the locking position when the drawer is in the closed state in this utility model. Figure 6 This is a first view of the assembly structure of the push-spring buckle and buckle support in this utility model; Figure 7 This is a second view of the assembly structure of the push-spring buckle and buckle support in this utility model; Figure 8 This is a schematic diagram of the disassembled structure of the push-spring buckle and buckle support in this utility model; Figure 9 This is a schematic diagram illustrating the process of the positioning pin sliding along the directional channel during the process of the drawer opening from closing. Figure 10 This is a reference diagram showing the usage state of the pusher when the drawer of this utility model is in the open state; Figure 11 This is a schematic diagram of the internal structure of the pusher when the drawer of this utility model is in the open state. Detailed Implementation

[0018] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0019] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0020] This utility model provides a water box assembly, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the water tank assembly includes: a water tank body 1, a drawer 2, a pusher 3, a positioning pin 4, and a pusher latch 5; the drawer 2 is inserted into the water tank body 1 and can slide back and forth relative to the water tank body 1; the pusher 3 is disposed on the rear inner wall of the water tank body 1; the pusher 3 can elastically extend and retract along the front and back and is located on the sliding path of the drawer 2; the positioning pin 4 is disposed on the outer bottom wall of the drawer 2; the pusher latch 5 is detachably disposed on the inner bottom wall of the water tank body 1; the pusher latch 5 is provided with a locking position 50. The directional channel 51 is connected to the locking position 50, and the push-out latch 5 can rotate relative to the water box body 1 so that the positioning pin 4 can reciprocate between the directional channel 51 and the locking position 50. The inlet and outlet of the directional channel 51 are located on the movement path of the positioning pin 4. When the positioning pin 4 is in the locking position 50, the drawer 2 is in the closed state, the pusher 3 is in the compressed state, and the positioning pin 4 can move backward in the locking position 50 so as to move to the directional channel 51 under the drive of the pusher 3.

[0021] Specifically, drawer 2 is located inside water tank body 1 and can slide back and forth to open and close; pusher 3 is located inside water tank body 1 and connected to the rear inner wall of water tank body 1; the front end of pusher 3 is used to contact drawer 2, and pusher 3 is located on the sliding path of drawer 2; when drawer 2 slides forward, drawer 2 can contact the front end of pusher 3 and pusher 3 forward, causing pusher 3 to undergo elastic deformation. The elastic deformation of pusher 3 provides clearance for drawer 2, allowing drawer 2 to continue to push backward until it is closed.

[0022] A positioning pin 4 is installed on the bottom outer side of drawer 2, and a push-tap latch 5 is installed on the inner top side of water tank body 1. The positioning pin 4 and the push-tap latch 5 cooperate to lock drawer 2 inside water tank body 1, thereby closing drawer 2. The push-tap latch 5 is provided with a directional channel 51 and a locking position 50, and the directional channel 51 and the locking position 50 are connected. Since the back-and-forth sliding of drawer 2 is linear, the positioning pin 4 also slides linearly when driven by drawer 2. Therefore, the push-tap latch 5 can rotate relative to water tank body 1. After the positioning pin 4 slides into the directional channel 51, the push-tap latch 5 is rotated by the pushing force of the positioning pin 4, so that the positioning pin 4 can enter the locking position 50 from the directional channel 51 and can also disengage from the locking position 50 into the directional channel 51.

[0023] like Figure 4 As shown, when drawer 2 is in the open state, the pusher 3 separates from drawer 2, and the positioning pin 4 separates from the pusher latch 5. When drawer 2 is pushed backward, drawer 2 first contacts the front end of pusher 3. The user continues to push drawer 2 backward and overcomes the elasticity of pusher 3, so that positioning pin 4 slides into directional channel 51. Under the action of positioning pin 4, pusher latch 5 rotates relative to water box body 1. Positioning pin 4 slides into engagement position 50 along directional channel 51, thus closing drawer 2. When drawer 2 is closed, pressing drawer 2 backward causes it to compress the pusher 3, resulting in elastic deformation. Simultaneously, the positioning pin 4 moves backward within the engagement position 50 and, driven by the pusher 3, moves to the directional channel 51. At this point, the pressure can be released. The pusher 3 returns to its elastic deformation, generating a spring force that propels drawer 2 forward. The positioning pin 4 retracts forward within the directional channel 51 until it disengages from the pusher latch 5, thus opening drawer 2. (The sliding process of the positioning pin 4 within the directional channel 51 is as follows...) Figure 9 As shown, Figure 9 The middle arrow indicates the sliding direction of positioning pin 4.

[0024] Therefore, in this application, the position of the positioning pin 4 within the pusher 5 is changed by the assistance of the pusher 3 and the rotation of the pusher latch 5, so that the positioning pin 4 moves into the engagement position 50 (e.g., Figure 5When drawer 2 is closed (as shown), the positioning pin 4 moves from the locking position 50 to the directional channel 51 and disengages from the push-out latch 5 with the assistance of the push-out device 3, thus opening drawer 2. Closing drawer 2 only requires overcoming the elastic deformation force of the push-out device 3, while opening drawer 2 not only does not require overcoming the elastic deformation force of the push-out device 3, but the elastic deformation force of the push-out device 3 can also help open drawer 2, thereby reducing the obstruction feeling when opening and closing drawer 2. At the same time, drawer 2 (or its connecting decorative parts) no longer needs to be designed with traditional handles or other structures. When using it, the pull-opening method is changed to pressing and then popping open, which makes opening and closing drawer 2 more effortless and ensures the overall appearance and visual cleanliness of the washing machine.

[0025] It should be noted that, as Figure 4 As shown, when drawer 2 is in the open state, the positioning pin 4 disengages from the push-out latch 5. During the closing process of drawer 2, as drawer 2 moves backward, it will first contact the pusher 3. That is, when drawer 2 contacts the pusher 3, the positioning pin 4 has not yet slid into the push-out latch 5. This ensures that when drawer 2 is opened, the pusher 3 can always push drawer 2 forward during the recovery of its elastic deformation until the positioning pin 4 disengages from the push-out latch 5. This prevents the positioning pin 4 from losing the assistance of the pusher 3 during its movement from the locking position 50 into the directional channel 51 and forward, causing the positioning pin 4 to stop in the directional slide and the drawer 2 to be unable to open completely by relying on the pusher 3.

[0026] One embodiment of this application, such as Figure 10 and Figure 11 As shown, the pusher 3 includes: a housing 31, a first elastic element 32, and a pusher rod unit 33; the front end of the housing 31 has an opening; the first elastic element 32 is located inside the housing 31 and is connected to the rear inner wall of the housing 31; the pusher rod unit 33 is located on the front side of the housing 31; one end of the pusher rod unit 33 is located outside the housing 31, and the other end is inserted into the housing 31 through the opening and connected to the first elastic element 32.

[0027] Specifically, the outer casing 31 is used to connect to the rear inner wall of the water tank body 1 and to house the first elastic member 32 and the push-spring rod unit 33. One end of the push-spring rod unit 33 is inserted into the outer casing 31 and connected to the first elastic member 32, while the other end of the push-spring rod unit 33 extends forward out of the outer casing 31 and is used to contact the drawer 2. When the drawer 2 is in the open state, the first elastic member 32 is in its natural state, and the overlap area between the push-spring rod unit 33 and the outer casing 31 is minimized. When the drawer 2 slides backward to close, the drawer 2 first contacts the front end of the push-spring rod unit 33. As the drawer 2 moves backward, the first elastic member 32 is compressed, and the area of ​​the push-spring rod unit 33 inserted into the outer casing 31 gradually increases. When the drawer 2 is in the closed state, the front end of the push-spring rod unit 33 contacts the drawer 2, and the first elastic member 32 is in a compressed state, thereby accumulating force for the subsequent opening of the drawer 2.

[0028] In one embodiment of this invention, the push-pull rod unit 33 includes: an adapter shell 331, a second elastic element 332, and a push-pull rod 333; one end of the adapter shell 331 is inserted into the outer shell 31 through the opening and connected to the first elastic element 32, and the other end of the adapter shell 331 has an insertion interface; the second elastic element 332 is located inside the adapter shell 331 and is connected to the rear inner wall of the adapter shell 331; one end of the push-pull rod 333 is inserted into the adapter shell 331 through the insertion interface and connected to the second elastic element 332, and the other end of the push-pull rod 333 extends forward to the outside of the adapter shell 331 and is used to abut against the drawer 2.

[0029] Specifically, the push-out lever 333 is used to contact the drawer 2; a first elastic element 32 is provided inside the outer shell 31 and is connected to the adapter shell 331. The extension and retraction of the first elastic element 32 realizes the extension and retraction of the adapter shell 331 within the outer shell 31; a second elastic element 332 is provided inside the adapter shell 331 and is connected to the push-out lever 333. The extension and retraction of the second elastic element 332 realizes the extension and retraction of the push-out lever within the adapter shell 331. When the drawer 2 is in the open state, both the first elastic element 32 and the second elastic element 332 are in their natural state, and the area of ​​the push-out lever 333 extending out of the adapter shell 331 reaches its maximum, as does the area of ​​the adapter shell 331 extending out of the outer shell 31. When the drawer 2 is in the closed state, the front end of the push-out lever 333 contacts the drawer 2, and both the first elastic element 32 and the second elastic element 332 are in a compressed state, thus storing force for the subsequent opening of the drawer 2.

[0030] In this embodiment, the dual force storage of the first elastic element 32 and the second elastic element 332 ensures that the length of the push rod 333 extending relative to the outer shell 31 is sufficient to contact the drawer 2 even when the positioning pin 4 is not inserted into the directional channel 51; at the same time, it provides sufficient power for opening the drawer 2 to ensure that the positioning pin 4 can disengage from the push rod latch 5. This avoids the situation where the positioning pin 4 loses the assistance of the pusher 3 during its movement from the locking position 50 into the directional channel 51 and moves forward, causing the positioning pin 4 to stop in the directional slide and the drawer 2 to be unable to open completely by the pusher 3.

[0031] One embodiment of this application, such as Figure 5 and Figure 6As shown, the push-pull buckle 5 includes: a base plate 501, an M-shaped baffle 502, a locking protrusion 503, and two limiting ribs 504; the base plate 501 is rotatably assembled with the water box body 1; the M-shaped baffle 502 is disposed on the base plate 501 with its opening facing forward; the two limiting ribs 504 are respectively connected to the two side walls of the opening of the M-shaped baffle 502 to form a directional channel 51 with the M-shaped baffle 502; the locking protrusion 503 is disposed on the base plate 501 and located inside the M-shaped baffle 502; the locking protrusion 503 and the concave angle 5021 of the M-shaped baffle 502 are arranged opposite to each other to form a locking position 50 between the locking protrusion 503 and the concave angle 5021, and to divide the directional channel 51 into a forward opening channel 512 and a rear closing channel 511 arranged on the left and right; both the forward opening channel 512 and the rear closing channel 511 are connected to the locking position 50.

[0032] Specifically, the base plate 501 is used to assemble with the water box body 1 and can rotate relative to the water box body 1; the M-shaped baffle 502 and two limiting ribs 504 are distributed front and rear, and the two limiting ribs 504 correspond one-to-one with the two side walls of the opening of the M-shaped baffle 502 and are connected to each other, so that the two limiting ribs 504 and the M-shaped baffle 502 enclose and form a directional channel 51. The locking protrusion 503 is located in the directional channel 51, specifically in the M-shaped baffle 502, so as to separate the directional channel 51 at the position of the M-shaped baffle 502, forming a forward opening channel 512 and a rear closing channel 511 arranged left and right; and the concave corner 5021 of the M-shaped baffle 502 is arranged at intervals with the locking protrusion 503 to form a locking position 50, so that the positioning pin 4 is limited by the locking protrusion 503 when the drawer 2 is closed. The left side is the forward opening channel 512, and the right side is the backward closing channel 511. The locking position 50 is located between the forward opening channel 512 and the backward closing channel 511, and is connected to both the forward opening channel 512 and the backward closing channel 511 respectively. The gap between the two limiting ribs 504 forms the entrance and exit of the directional channel 51, and is connected to both the forward opening channel 512 and the backward closing channel 511.

[0033] It should be noted that the left outward protrusion of the M-shaped baffle 502 forms part of the forward opening channel 512, and the right outward protrusion of the M-shaped baffle 502 forms part of the rear closing channel 511. When drawer 2 is in the open state, push drawer 2 backward. After drawer 2 contacts pusher 3, pusher 3 is compressed under the action of pushing force. As drawer 2 moves backward, positioning pin 4 first enters between two limiting ribs 504 and moves forward along the gap between the two limiting ribs 504. Under the pushing force of positioning pin 4 moving forward, base plate 501 first rotates counterclockwise and then clockwise. Positioning pin 4 enters the rear closing channel 511 until positioning pin 4 slides to the right outer convex angle 5022 of M-shaped stop rib 502 (i.e., the extreme position of rear closing channel 511). Then you can release it. Under the holding force of pusher 3 restoring elastic deformation, drawer 2 drives positioning pin 4 to move forward slightly and enter the locking position 50, thus being limited in the locking position 50, realizing the closing of drawer 2.

[0034] When drawer 2 is opened, press drawer 2 backward and then release it. The positioning pin 4 can then move backward within the locking position 50 and enter the forward opening channel 512. Then, under the force of the pusher 3 restoring its elastic deformation, drawer 2 can be pushed forward by the pusher 3 until drawer 2 is disengaged from pusher 3, positioning pin 4 is disengaged from pusher latch 5, and drawer 2 is opened.

[0035] One embodiment of this application, such as Figure 6 As shown, a V-shaped guide groove 5031 is provided on the side of the protrusion 503 facing the concave angle 5021; the inner angle of the V-shaped guide groove 5031 is obliquely arranged relative to the concave angle 5021 towards the forward opening channel 512, and the inclined side of the V-shaped guide groove 5031 near the rear closing channel 511 corresponds to the sharp angle of the concave angle 5021. A V-shaped guide portion 5032 is provided on the side of the protrusion 503 away from the concave angle 5021, and the guide angle of the V-shaped guide portion 5032 is obliquely arranged towards the forward opening channel 512 so that the outlet width of the forward opening channel 512 is smaller than the inlet width of the rear closing channel 511.

[0036] Specifically, the inner corner of the V-shaped guide groove 5031 is used to accommodate the positioning pin 4 and limit the positioning pin 4 so that when the user does not apply force to the drawer 2 and the drawer 2 only bears the pushing force of the pusher 3, the positioning pin 4 can be limited within the locking position 50, thereby realizing the locking of the drawer 2 in the closed state.

[0037] In this embodiment, the inner angle of the V-shaped guide groove 5031 is obliquely arranged relative to the concave angle 5021 toward the forward opening channel 512, so that the inner angle of the V-shaped guide groove 5031 can correspond to the left oblique side of the concave angle 5021. When the user pushes the drawer 2 backward in the closed state, the positioning pin 4 will be blocked by the left oblique side of the concave angle 5021 when it moves backward in the locking position 50. Under the guidance of the left oblique side of the concave angle 5021, it will move to the left and enter the forward opening channel 512, instead of mistakenly entering the backward closing channel 511 to the right, thus ensuring that the subsequent opening action can be completed.

[0038] In this embodiment, the inclined side of the V-shaped guide groove 5031 near the rear closing channel 511 corresponds to the sharp corner of the concave angle 5021. During the process of closing the drawer 2, when the positioning pin 4 moves along the rear closing channel 511 to the limit position of the rear closing channel 511 and is released, under the pushing force of the pusher 3 and the guiding action between the right inclined side of the concave angle 5021 and the inclined side of the V-shaped guide groove 5031 near the rear closing channel 511, the positioning pin 4 will inevitably enter the locking position 50 and will not avoid the locking position 50 and exit the pusher latch 5 from the rear closing channel 511.

[0039] In this embodiment, a V-shaped guide portion 5032 is provided on the side of the card protrusion 503 away from the concave angle 5021. The guide angle of the V-shaped guide portion 5032 is obliquely arranged towards the forward opening channel 512 so that the exit width of the forward opening channel 512 is smaller than the entrance width of the rear closing channel 511. Therefore, during the process of the drawer 2 being pushed backward, when the positioning pin 4 enters the M-shaped baffle 502 through the gap between the two limiting ribs 504, it will inevitably be able to enter the rear closing channel 511 under the guidance of the right oblique side of the V-shaped guide portion 5032, and will not deviate and mistakenly enter the forward opening channel 512.

[0040] In one embodiment of this invention, the limiting ribs 504 are V-shaped, and the opposite sides of the two limiting ribs 504 are arranged in parallel, thereby forming an inlet and outlet of a directional channel 51 that is wider at the front and narrower at the back between the two limiting ribs 504. This enhances the guiding effect of the directional channel 51 on the positioning pin 4, ensuring that no matter what angle the push-spring buckle 5 rotates relative to the water box body 1, the positioning pin 4 will be able to enter the directional channel 51 when the drawer 2 is closed.

[0041] One embodiment of this application, such as Figure 8 As shown, the base plate 501 includes a rotating part 5011 and a connecting part 5012; the rotating part 5011 is arc-shaped, and the center of the rotating part 5011 overlaps with the rotation center of the base plate 501; two limiting ribs 504 are provided on the rotating part 5011; the connecting part 5012 is integrally formed with the rotating part 5011; an M-shaped baffle 502 is provided on the connecting part 5012. Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the water box assembly also includes a snap-fit ​​support 6; a slot is provided on the water box body 1, and the snap-fit ​​support 6 is detachably disposed in the slot; a receiving groove 61 is provided on the top surface of the snap-fit ​​support 6, and the push-pull snap 5 is rotatably disposed in the receiving groove 61 and detachably assembled with the snap-fit ​​support 6.

[0042] Specifically, the snap-fit ​​support 6 is used for detachable connection with the water tank body 1; the top surface of the snap-fit ​​support 6 is recessed downwards to form a receiving groove 61, and the push-pull snap 5 is disposed in the receiving groove 61 and can rotate relative to the snap-fit ​​support 6. Figure 8 As shown, the receiving groove 61 includes a first groove 611 and a second groove 612. The first groove 611 is located behind the second groove 612 and communicates with it. The first groove 611 is used to accommodate the rotating part 5011 and the limiting rib 504, and the shape of the first groove 611 is adapted to the rotating part 5011. The second groove 612 is used to accommodate the M-shaped baffle 502 and the connecting part 5012. Two transition bevels 613 are symmetrically arranged at the connection between the first groove 611 and the second groove 612. The width of the second groove 612 is greater than the width of the first groove 611, and the distance between the front ends of the two transition bevels 613 is small and the distance between the rear ends is large, thereby limiting the rotation angle of the push-spring buckle 5 to an acute angle range through the two transition bevels 613.

[0043] In one embodiment of this invention, the rotating part 5011 is further provided with two arc-shaped baffles 7. The two arc-shaped baffles 7 are respectively connected to the two limiting baffles 504 one-to-one, and the two ends of the arc-shaped baffles 7 are connected to the two ends of the limiting baffles 504. The center of the circle where the two arc-shaped baffles 7 are located coincides with the rotation center of the push-spring buckle 5. The two arc-shaped baffles 7 are used to cooperate with the inner wall of the first groove 611, thereby enhancing the guiding effect of the first groove 611 on the rotation of the push-spring buckle 5, ensuring that the push-spring buckle 5 can rotate smoothly in the receiving groove 61 under the pushing force of the positioning pin 4, without skewing or misalignment.

[0044] like Figure 7 and Figure 8As shown, the push-spring buckle 5 also includes two hooks 505, a first guide rib 506, and at least one second guide rib 507; the two hooks 505 are disposed at the bottom of the rotating part 5011 and arranged radially along the rotating part 5011; the receiving groove 61 is provided with two arc-shaped through holes 60 corresponding to the rotating part 5011, the arc-shaped through holes 60 and the hooks 505 are respectively connected, the hooks 505 pass through the arc-shaped through holes 60 and engage with the buckle support 6; the hooks 505 can rotate relative to the buckle support 6; the first guide rib 506 is disposed at the rear end of the M-shaped baffle 502; the second guide rib 507 is disposed at the rear end of the connecting part 5012 and a gap is provided between it and the first guide rib 506 in the vertical direction; a third guide rib 62 is disposed in the receiving groove 61 and the third guide rib 62 is located in the gap.

[0045] Specifically, the two hooks 505 are used to engage with the bottom of the buckle support 6 and can rotate relative to the buckle support 6, thereby providing a certain guiding and limiting effect on the rotation of the push-spring buckle 5, so that the push-spring buckle 5 can only rotate around the center of the rotating part 5011, further improving the stability of the rotation of the push-spring buckle 5.

[0046] The first guide rib 506 and the second guide rib 507 are both located at the rear end of the push-spring latch 5, and the first guide rib 506 and the second guide rib 507 are arranged vertically, thus leaving a gap between the first guide rib 506 and the second guide rib 507, and forming a receiving space for the third guide rib 62 through the gap. When the push-spring latch 5 rotates, the first guide rib 506, the second guide rib 507 and the third guide rib 62 can generate a vertical limit, ensuring that the rotation of the push-spring latch 5 is a horizontal rotation, further improving the stability of the rotation of the push-spring latch 5, ensuring that the positioning pin 4 can enter the directional channel 51 during the closing of the drawer 2, and can enter the locking position 50 from the rear closing channel 511. When the drawer 2 is opened, the positioning pin 4 can enter the forward opening channel 512 from the locking position 50 and exit the push-spring latch 5.

[0047] This application also provides a washing machine, which includes the water tank assembly as described in any of the above claims.

[0048] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0049] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

Claims

1. A water tank assembly comprising a water tank body and a drawer, the drawer being inserted into the water tank body and slidable back and forth relative to the water tank body, characterized in that, It also includes: A pusher is provided on the rear inner wall of the water box body; the pusher can elastically extend and retract along the front and back and is located on the sliding path of the drawer; A positioning pin is provided on the outer bottom wall of the drawer; The push-button latch is detachably mounted on the inner bottom wall of the water box body; The push-tap latch is provided with a locking position and a directional channel. The directional channel is connected to the locking position, and the push-tap latch can rotate relative to the water box body so that the positioning pin can reciprocate between the directional channel and the locking position. The inlet and outlet of the directional channel are located on the movement path of the positioning pin. When the positioning pin is in the locking position, the drawer is in a closed state, the pusher is in a compressed state, and the positioning pin can move backward in the locking position to move to the directional channel under the drive of the pusher.

2. The water box assembly according to claim 1, characterized in that, The pusher includes: The outer casing; the rear end of the outer casing has an opening; The first elastic element is located inside the housing and is connected to the rear inner wall of the housing; A push rod unit is located on the front side of the housing; one end of the push rod unit is located outside the housing, and the other end is inserted into the housing through the opening and connected to the first elastic element.

3. The water box assembly according to claim 2, characterized in that, The push rod unit includes: The adapter shell has one end inserted into the outer shell through the opening and connected to the first elastic element, and the other end has a plug-in interface. The second elastic element is located inside the adapter shell and is connected to the rear inner wall of the adapter shell; The push rod has one end inserted into the adapter housing through the insertion interface and connected to the second elastic element, and the other end extends forward to the outside of the adapter housing and is used to abut against the drawer.

4. The water box assembly according to claim 1, characterized in that, The pusher clip includes: A base plate for rotatably assembling with the water box body; M-shaped retaining ribs are provided on the base plate with their openings facing forward; Two limiting ribs are respectively connected to the two side walls of the opening of the M-shaped baffle, so as to form the directional channel by enclosing the M-shaped baffle; A locking protrusion is provided on the base plate and located within the M-shaped retaining rib; the locking protrusion and the concave angle of the M-shaped retaining rib are arranged opposite each other to form the locking position between the locking protrusion and the concave angle, and to divide the directional channel into a forward opening channel and a rear closing channel arranged on the left and right; both the forward opening channel and the rear closing channel are connected to the locking position.

5. The water box assembly according to claim 4, characterized in that, A V-shaped guide groove is provided on the side of the card protrusion facing the concave angle; the inner angle of the V-shaped guide groove is obliquely arranged relative to the concave angle towards the forward opening channel, and the oblique side of the V-shaped guide groove near the rear closing channel corresponds to the sharp angle of the concave angle.

6. The water box assembly according to claim 4, characterized in that, The card protrusion is provided with a V-shaped guide on the side away from the concave angle. The guide angle of the V-shaped guide is obliquely arranged towards the forward opening channel so that the exit width of the forward opening channel is smaller than the entrance width of the rear closing channel.

7. The water box assembly according to claim 4, characterized in that, The base plate includes: The rotating part is arc-shaped, and the center of the rotating part overlaps with the rotation center of the base plate; two limiting ribs are provided on the rotating part; The connecting part is integrally formed with the rotating part; the M-shaped baffle is provided on the connecting part.

8. The water box assembly according to claim 7, characterized in that, It also includes: The water tank body is provided with a slot, and the snap-on support is detachably disposed in the slot. The top surface of the buckle support is provided with a receiving groove, and the push-spring buckle is rotatably disposed in the receiving groove and detachably assembled with the buckle support.

9. The water box assembly according to claim 8, characterized in that, The pusher clip also includes: Two hooks are provided at the bottom of the rotating part and arranged radially along the rotating part; the receiving groove is provided with two arc-shaped through holes corresponding to the rotating part, and the arc-shaped through holes correspond one-to-one with the hooks. The hooks pass through the arc-shaped through holes and engage with the buckle support; the hooks can rotate relative to the buckle support. The first guide rib is located at the rear end of the M-shaped retaining rib; At least one second guide rib is disposed at the rear end of the connecting portion and a gap is provided between it and the first guide rib in the vertical direction; a third guide rib is disposed in the receiving groove and the third guide rib is located within the gap.

10. A washing machine, characterized in that, It includes the water box assembly as described in any one of claims 1-9.

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