CN107142685B

CN107142685B - Push-spring type detergent box and washing machine

Info

Publication number: CN107142685B
Application number: CN201710468694.5A
Authority: CN
Inventors: 吕佩师; 程宝珍; 黄涛; 迟宗锐
Original assignee: Haier Smart Home Co Ltd; Chongqing Haier Front Loading Washing Machine Co Ltd
Current assignee: Haier Smart Home Co Ltd; Chongqing Haier Front Loading Washing Machine Co Ltd
Priority date: 2017-06-20
Filing date: 2017-06-20
Publication date: 2021-07-02
Anticipated expiration: 2037-06-20
Also published as: CN107142685A

Abstract

The invention relates to a push-spring type detergent box and a washing machine, wherein the structure of the push-spring type detergent box comprises a water box arranged on a shell of the washing machine, and a pull-out and push-in detergent box is arranged in the water box; a sliding rail is arranged between the water box and the detergent box, and a plurality of pulleys in contact with the detergent box are arranged on the sliding rail so as to reduce friction in the process of pulling out and pushing in the detergent box. The friction at the displacement contact position between the detergent box and the water box is changed from sliding friction to rolling friction by installing the detergent box and the water box through the pulley sliding rail structure, so that the friction force in the pushing and pulling process of the detergent box is greatly reduced. In addition, the washing agent box controlled by the push-spring lock and provided with the push-out power by the elastic component is arranged on the washing machine, so that the washing agent box can realize the use purposes of automatic locking and push-spring opening only by small push-spring external force, and the washing agent box has the function of push-spring opening and closing.

Description

Push-spring type detergent box and washing machine

Technical Field

The invention relates to the field of washing machines, in particular to a push-type detergent box applied to a washing machine.

Background

The detergent box of the existing drum washing machine is opened, closed and pulled out manually. In order to facilitate the user to pull and pull the detergent box, a handle groove is usually designed on the detergent box for the user to hold conveniently, however, the handle groove may affect the overall appearance of the drum washing machine, and dust is easily accumulated at the handle position.

In addition, the pulling opening and closing of the detergent box needs to be realized by mechanical structures such as a locking reverse buckle arranged on the detergent box. Therefore, the user is required to manually operate and control the hand feeling and the body feeling of the user, and the use comfort level is not high.

To this end, the present invention is directed to a detergent box assembly for a washing machine to solve the above problems.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a push-type detergent box, which aims to realize the purpose of automatically opening or locking the detergent box after providing a push-type external force to the detergent box; the other purpose is to reduce the friction force in the process of pushing and pulling the detergent box and realize the purpose of fast and convenient opening of the detergent box.

In order to realize the purpose, the invention adopts the following technical scheme:

a push-spring type detergent box comprises a water box arranged on a shell of a washing machine, wherein a pull-out and push-in detergent box is arranged in the water box; a sliding rail is arranged between the water box and the detergent box, and a plurality of pulleys in contact with the detergent box are arranged on the sliding rail so as to reduce friction in the process of pulling out and pushing in the detergent box.

Furthermore, the left side and the right side of the detergent box are respectively provided with a roller guide groove which extends along the parallel direction of the axis of the detergent box and is provided with an opening at the lower end, the inner wall of the water box is provided with a plurality of pulleys with wheel surfaces arranged along the axis direction of the roller guide groove, and the upper part of each pulley extends into the roller guide groove and is contacted with the top wall of the roller guide groove.

Furthermore, the left side wall and the right side wall of the water box are respectively provided with a bending part which is bent inwards and horizontally, and the bending parts are correspondingly arranged below the roller guide grooves; the bending part is provided with a plurality of mounting grooves which are arranged at intervals, pulleys which are vertically arranged are respectively mounted in the mounting grooves, and the central shaft of each pulley is perpendicular to the axis direction of the corresponding roller guide groove.

Further, a central shaft is arranged at the center of the pulley, and the central shaft is horizontally arranged on the water box and can rotate around a shaft.

Furthermore, the central shaft of the pulley is arranged independently, the central shaft horizontally penetrates through the center of the pulley, two ends of the central shaft respectively penetrate into the left side wall and the right side wall of the mounting groove, and the pulley can rotate around the axis of the central shaft relative to the central shaft and/or the pulley and the central shaft together;

or the central shaft and the pulley are an integrated piece, and the left end and the right end of the central shaft exceed the left side and the right side of the roller and can rotatably penetrate into the left side wall and the right side wall of the mounting groove.

Further, the pulley center department is in laminating contact with the lateral wall about the mounting groove mutually, and lateral wall looks alternate separation about pulley periphery and the gyro wheel guide slot, and the roof of pulley periphery and gyro wheel guide slot is in laminating contact mutually.

Furthermore, the center of the pulley is provided with limiting bulges which respectively protrude towards the left side and the right side along the axial direction, and the outer side surfaces of the limiting bulges at the two sides are vertical surfaces which are in limiting contact with the left side wall and the right side wall of the mounting groove respectively;

the periphery of pulley is equipped with the portion of bending that the level was bent respectively to the left and right sides along the axial, and the portion of bending lateral surface of pulley radial direction is the face of cylinder that the axis level set up, and the face of cylinder is laminated with gyro wheel guide way top wall mutually and is contacted.

Furthermore, the bending parts of the left side wall and the right side wall of the water box are horizontally arranged on the same height surface, the outer sides of the bending parts are connected with a first vertical part extending vertically upwards, and the inner sides of the bending parts are connected with a second vertical part extending vertically downwards; the first vertical part is arranged corresponding to the outer side of the roller guide groove, and the second vertical part is arranged corresponding to the side wall of the detergent box.

Furthermore, a push-spring lock assembly is arranged between the water box and the detergent box so as to change the locking state of the lock assembly after providing a push-spring external force for the detergent box and lock or unlock the water box and the detergent box; an elastic component is arranged between the water box and the detergent box and used for providing power for pushing and ejecting the detergent box.

The invention also provides a washing machine, wherein the push-type detergent box is arranged on the washing machine.

Compared with the prior art, the invention has the following beneficial effects:

the washing machine is provided with the detergent box which is controlled by the push-spring lock and provided with push-out power by the elastic component, so that the detergent box can realize the use purposes of automatic locking and push-spring opening only by small push-spring external force, and the detergent box has the function of push-spring opening and closing;

meanwhile, the detergent box is arranged in the water box through a sliding rail structure matched with the pulley, so that the displacement friction of the detergent box is changed into sliding friction, the friction force in the process that the detergent box is pulled out is reduced, and the smoothness of the process that the detergent box is pushed and bounced to open is improved.

And the friction at the displacement contact position between the detergent box and the water box is changed from sliding friction to rolling friction by installing the detergent box and the water box through a pulley sliding rail structure, so that the friction force in the pushing and pulling process of the detergent box is greatly reduced.

The invention has simple structure and obvious effect and is suitable for popularization and application.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIGS. 1 to 3 are schematic views showing the installation structure of the projectile-type detergent box in various angles according to the embodiment of the present invention;

FIG. 4 shows a side view of a projectile-type detergent box in an embodiment of the invention;

FIG. 5 is a schematic structural diagram of section A-A in FIG. 4 according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of the structure of the embodiment of the present invention shown at B in FIG. 5;

FIG. 7 is a schematic structural diagram of a section C-C in FIG. 4 according to an embodiment of the present invention;

FIG. 8 is an enlarged schematic view of the embodiment of the present invention shown in FIG. 7 at D;

FIG. 9 illustrates a rear view of a push-on detergent box in an embodiment of the invention;

FIG. 10 is a schematic structural diagram illustrating section E-E of FIG. 9 according to an embodiment of the present invention;

FIG. 11 is an enlarged schematic view of the structure of FIG. 10 at C;

FIG. 12 is a schematic structural view of section F-F of FIG. 9 according to an embodiment of the present invention;

figures 13 and 14 show a first perspective structural view of the operative states of the push latch assembly in an embodiment of the present invention;

figures 15 to 18 show a second perspective structural view of the operative states of the push latch assembly in an embodiment of the present invention;

FIG. 19 is a schematic sectional view illustrating an opened state of the push type detergent box according to the embodiment of the present invention;

fig. 20 shows an enlarged schematic structure of the embodiment of the present invention at G in fig. 19.

The main element names in the drawings are as follows: 100-detergent box, 200-water box, 300-casing, 400-handle, 500-upper cover, 600-elastic component, 700-push latch component, 1-pulley, 2-first positioning column, 3-second positioning column, 4-bolt, 5-push latch body, 6-roller guide slot, 7-cam, 8-hasp reed, 9-mounting groove, 10-center shaft, 11-bending part, 12-first vertical part, 13-second vertical part, 14-limiting pulley, 15-push rod sleeve, 16-push rod, 17-spring, 18-reset spring, 19-first protrusion, 20-second protrusion, 21-latch hook, 22-latch hole, 23-third protrusion, 24-latch, 25-fourth protrusion, 26-mounting bolt, 27-opening, 28-guide rib.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments are clearly and completely described below, and the following embodiments are used for illustrating the present invention and are not used for limiting the scope of the present invention.

As shown in fig. 1 to 18, an embodiment of the present invention introduces a push-type detergent box mounted on a washing machine, which includes a water box 200 mounted on a washing machine housing 300, and a detergent box 100 installed in the water box 200 to be drawn out and pushed in; a push latch assembly 700 is arranged between the water box 200 and the detergent box 100 to change the locking state of the push latch assembly 700 after the detergent box is provided with a push external force, so that the water box 200 and the detergent box 100 are locked or unlocked; an elastic member 600 is further provided between the water tank 200 and the detergent tank 100 for providing power to eject the detergent tank. A sliding rail structure is arranged between the water box 200 and the detergent box 100, so that the detergent box can be pushed, pulled and opened along the sliding rail structure; the sliding rail structure includes a plurality of pulleys 1 contacting the detergent box 100 to reduce friction in the process of pulling out and pushing in the detergent box.

In the embodiment of the invention, after a user pushes the detergent box 100 into the water box 200 along the slideway structure, a push-spring external force is applied to the detergent box 100 to change the push-spring lock assembly 700 into a locking state, so that the detergent box 100 is locked in the water box 200, and the detergent in the detergent box 100 can be thrown along with the water inlet of the washing machine; when the detergent in the detergent box 100 needs to be replenished, the user applies a bullet pushing external force to the detergent box 100 locked and installed in the water box 200, so that the bullet pushing lock assembly 700 is changed to an unlocked state, meanwhile, the elastic assembly 600 provides power for pushing the detergent box 100 outwards, so that the detergent box 100 is pushed out of the water box 200 along the sliding rail structure under the action of the pushing power and under the assistance of the pulley 1 with small friction force, and the purposes of automatically opening and locking the detergent box under the action of the bullet pushing external force are achieved.

The washing machine is provided with the detergent box which is controlled by the push-spring lock and provided with push-out power by the elastic component, so that the detergent box can realize the use purposes of automatic locking and push-spring opening only by small push-spring external force, and the detergent box has the function of push-spring opening and closing; meanwhile, the detergent box is arranged in the water box through a sliding rail structure matched with the pulley, so that the displacement friction of the detergent box is changed into sliding friction, the friction force in the process that the detergent box is pulled out is reduced, and the smoothness of the process that the detergent box is pushed and bounced to open is improved.

Example one

As shown in fig. 1 to 12, the present embodiment describes a push-type detergent box, including a water box 200 mounted on a washing machine housing 300, and a detergent box 100 installed in the water box 200 and capable of being pulled out and pushed in; a sliding rail structure is arranged between the water box 200 and the detergent box 100, and the sliding rail structure comprises a plurality of pulleys 1 which are in contact with the detergent box 100 so as to reduce friction in the process of pulling out and pushing in the detergent box 100.

The friction at the displacement contact position between the detergent box and the water box is changed from sliding friction to rolling friction by installing the detergent box and the water box through the pulley sliding rail structure, so that the friction force in the pushing and pulling process of the detergent box is greatly reduced.

In this embodiment, the left and right sides of the detergent box 100 are respectively provided with roller guide grooves 6 extending in the direction parallel to the axis of the detergent box 100 and having an open lower end, the inner wall of the water box 200 is provided with a plurality of pulleys 1 having pulley surfaces arranged in the direction of the axis of the roller guide grooves 6, and the upper portions of the pulleys 1 extend into the roller guide grooves 6 and contact with the top walls of the roller guide grooves 6.

The roller guide groove arranged on the detergent box is supported by the plurality of pulleys arranged on the water box, so that a plurality of supporting points are provided for the detergent box, and the stability of the detergent box in the pushing and pulling process is improved; meanwhile, a plurality of pulleys arranged in the same direction are arranged in the slide rail of the detergent box, so that the pulleys and the slide rail are in mutual limit contact, the problem of deviation generated in the pushing and pulling process of the detergent box is prevented, and a deviation rectifying acting force is provided for the detergent box so as to prevent the detergent box from falling off.

In this embodiment, the left and right side walls of the water box 200 are respectively provided with a bending part 11 which is bent inwards and horizontally, and the bending parts 11 are correspondingly arranged below the roller guide grooves 6; the bending part 11 is provided with a plurality of mounting grooves 9 arranged at intervals, the inside of each mounting groove 9 is respectively provided with a vertically arranged pulley 1, and the central shaft 10 of each pulley 1 is perpendicular to the axis direction of the roller guide groove 6, so that each pulley 1 is mounted on the same horizontal plane, each vertically mounted pulley 1 is positioned in the same vertical plane below the roller guide groove 6, and the purpose that each pulley 1 provides vertical supporting force and horizontal sliding friction force for the roller guide groove 6 in the pushing and pulling process is achieved.

In this embodiment, a central shaft 10 is disposed at the center of the pulley 1, the central shaft 10 is horizontally and rotatably mounted on the water box 200 around an axis, and the central shaft 10 is perpendicular to the direction of pushing and pulling movement of the detergent box 100, that is, the direction of the axis of the roller guide groove 6, so that when the pulley 1 rotates around the central shaft 10, the outer circumference of the pulley 1 rotates along the direction of the axis of the roller guide groove 6, thereby achieving the purposes of guiding the detergent box 100 to generate pushing and pulling movement and reducing friction.

In this embodiment, the center pin of pulley 1 can be independent setting, and center pin 10 runs through from pulley 1 center level, and the both ends of center pin 10 penetrate the lateral wall about mounting groove 9 respectively, and pulley 1 can rotate around center pin 10 axis, and/or pulley 1 and center pin 10 are rotatory around center pin 10 axis jointly to realize that the pulley periphery produces relative water box rotation, reduce the purpose that pulley and slide rail contact department rub.

Or, in this embodiment, the central shaft 10 and the pulley 1 may be formed as an integral piece, and the left and right ends of the central shaft 10 extend beyond the left and right sides of the pulley 1 and rotatably penetrate into the left and right side walls of the mounting groove 9, so that the purpose of rotating the pulley 1 relative to the water box 200 around the pulley 1 and reducing friction at the contact position of the pulley 1 and the roller guide groove 6 can be achieved.

In the embodiment, the center of the pulley 1 is in contact with the left side wall and the right side wall of the mounting groove 9 in a fitting manner, so that the pulley 1 is limited by the left side wall and the right side wall of the mounting groove 9 in the horizontal direction, the pulley 1 is prevented from moving in the horizontal direction, and the contact stability between the periphery of the pulley 1 and the roller guide groove 6 is improved; the periphery of the pulley 1 is separated from the left side wall and the right side wall of the roller guide groove 6 at intervals so as to prevent the pulley 1 from contacting with the side walls of the roller guide groove 6, reduce the contact degree of the pulley 1 and the roller guide groove 6 in the horizontal direction, further reduce friction force and improve the smoothness of the rotation of the pulley 1 in the roller guide groove 6; simultaneously, the contact of laminating mutually of 1 periphery of pulley and gyro wheel guide slot 6 roof to for laminating contact between 1 periphery of pulley and the 6 roof of gyro wheel guide slot, guarantee the reliability that 1 pair of gyro wheel guide slot 6 of pulley supported.

As shown in fig. 4 and 5, in this embodiment, the center of the pulley 1 is provided with a limiting protrusion protruding towards the left and right sides along the axial direction, and the outer side surfaces of the limiting protrusions at the two sides are vertical surfaces in limiting contact with the left and right side walls of the mounting groove 9, so that the left and right sides of the pulley 1 are in surface contact with the left and right side walls of the mounting groove 9, which are attached to each other, thereby ensuring the limiting between the two and preventing the pulley from generating an offset in the axial direction.

As shown in fig. 4 and 5, in this embodiment, the periphery of the pulley 1 is provided with a bending portion that is bent horizontally towards the left and right sides along the axial direction, the outer side surface of the bending portion in the radial direction of the pulley 1 is a cylindrical surface that is horizontally arranged along the axis of the pulley 1, and the cylindrical surface is in contact with the top wall of the roller guide slot 6 in a fitting manner, so that the periphery of the pulley 1 is in contact with the top wall of the roller guide slot 6 in a fitting manner, thereby ensuring the transmission stability between the pulley 1 and the roller guide slot 6 in the rotation process of the pulley and the reliability of contact support between the pulley 1 and the roller.

Preferably, in this embodiment, the bent portions 11 of the left and right sidewalls of the water box 200 are horizontally disposed on the same height plane, so as to ensure that the left and right supporting planes of the detergent box 100 are in the same horizontal plane, thereby effectively preventing the detergent box 100 from tilting in the left and right directions.

In this embodiment, the outer side of the bending portion 11 is connected to a first vertical portion 12 extending vertically upward, and the inner side of the bending portion 11 is connected to a second vertical portion 13 extending vertically downward; the first vertical part 12 is arranged corresponding to the outer side of the roller guide groove 6, and the second vertical part 13 is arranged corresponding to the side wall of the detergent box 100, so that the inner wall of the water box 200 is in contact with the outer wall of the detergent box 100 as close as possible, the water box 200 is limited in the horizontal direction of the detergent box 100, and the detergent box 100 is prevented from being deviated in the pushing and pulling process.

Example two

As shown in fig. 1 to 12, the present embodiment describes a push-spring type detergent box, which includes a water box 200 mounted on a washing machine housing, and a detergent box 100 installed in the water box 200 and capable of being pulled out and pushed in; the top of the detergent box 100 is provided with an upper cover 500 which is buckled, and the top wall of the water box 200 is provided with a plurality of vertically-arranged limiting pulleys 14 which are protruded from the lower surface of the top wall, so that the friction in the process of pulling out and pushing in the detergent box 100 is reduced.

The plurality of limiting pulleys are arranged between the upper cover of the detergent box and the top wall of the water box, so that the upper cover of the detergent box is prevented from being in direct contact with the top wall of the water box, the limiting pulleys provide sliding friction force for the upper cover of the detergent box in the pushing and pulling process of the detergent box, the friction at the displacement contact position between the upper cover of the detergent box and the water box is changed from sliding friction to rolling friction, and the friction force in the pushing and pulling process of the detergent box is greatly reduced.

In this embodiment, the top wall of the water box 200 is provided with a plurality of inverted mounting grooves 9, each mounting groove 9 is internally provided with a vertically arranged limiting pulley 14, and a central shaft 10 of the limiting pulley 14 is perpendicular to the pushing and pulling movement direction of the detergent box 100, so that the limiting pulley 14 can rotate around a shaft along the pushing and pulling direction, the limiting pulley 14 is driven to rotate during the pushing and pulling process of the detergent box 100, and the purposes that the upper cover 500 of the detergent box 100 is provided with sliding friction by the rolling limiting pulley 14 and the friction force during the pushing and pulling process is reduced are achieved.

In this embodiment, a central shaft 10 is disposed at the center of the limiting pulley 14, and the central shaft 10 is horizontally and pivotally installed on the water box 200.

In this embodiment, the central shaft 10 of the limiting pulley 14 may be independently disposed, the central shaft 10 horizontally penetrates through the center of the limiting pulley 14, two ends of the central shaft 10 respectively penetrate through the left and right side walls of the mounting groove 9, and the limiting pulley 14 can rotate around the axis of the central shaft relative to the central shaft 10 and/or the limiting pulley 14 and the central shaft 10 rotate around the axis of the central shaft 10 together, so as to achieve the purpose that the periphery of the limiting pulley 14 rotates relative to the water box 200 and the friction at the contact position of the limiting pulley 14 and the upper cover of the detergent box 100 is reduced.

Alternatively, in this embodiment, the central shaft 10 and the limiting pulley 14 may be formed as an integral member, and the left and right ends of the central shaft 10 may extend beyond the left and right sides of the limiting pulley 14 and may rotatably penetrate into the left and right side walls of the mounting groove 9, so as to achieve the purpose of reducing the friction at the contact position between the limiting pulley 14 and the upper cover of the detergent box 100 by the rotation of the outer periphery of the limiting pulley 14 relative to the water box 200.

In this embodiment, the contact of laminating mutually is located with the left and right sides lateral wall of mounting groove 9 in spacing pulley 14 center, spacing pulley 14 bottom is worn out the mounting groove 9 lower part opening of invering, and make spacing pulley 14 periphery bulge water box 200 roof, make spacing pulley 14 and detergent box 100 upper cover looks sliding contact, and under the spacing pulley 14 effect of protrusion setting, effectively avoid the emergence of detergent box 100 upper cover and the direct contact condition of water box 200 roof, make the sliding friction that the friction mode of contact department provided for spacing pulley between detergent box 100 upper cover and the water box 200 roof.

In this embodiment, the center department of spacing pulley 14 is equipped with along the axial to the left and right sides convex spacing protruding respectively, the lateral surface of the spacing protruding of both sides is respectively with the mounting groove 9 about the vertical face of lateral wall spacing contact mutually to make spacing pulley 14 left and right sides respectively with the mounting groove 9 about the lateral wall for the face contact of laminating each other, guarantee spacing between the two, prevent that spacing pulley from producing axial direction's skew.

In this embodiment, the periphery of the limiting pulley 14 is provided with bending portions which are respectively bent horizontally towards the left side and the right side along the axial direction, the outer side surface of the bending portion in the radial direction of the periphery of the limiting pulley 14 is a cylindrical surface which is horizontally arranged along the axis of the limiting pulley 14, and the cylindrical surface is in sliding contact with the upper cover 500 of the detergent box, so that contact which may be generated between the periphery of the limiting pulley 14 and the upper cover 500 of the detergent box is surface contact which is mutually attached, and the transmission stability between the rotating process of the limiting pulley 14 and the upper cover of the detergent box 100 and the reliability of contact support between the limiting pulley 14 and the upper cover of the detergent box 100 are ensured.

Preferably, in this embodiment, the lower ends of the limiting pulleys 14 are respectively spaced from the upper cover 500 of the detergent box by a certain gap, so as to effectively avoid the detergent box upper cover 500 from contacting with other parts, and prevent the upper cover 500 from generating friction during the pushing and pulling process of the detergent box 100; meanwhile, when the detergent box 100 is displaced in the vertical direction and the detergent box upper cover 500 is in contact with other parts (mainly the top wall of the water box 200), the detergent box upper cover 500 can only be in mutual contact with the limiting pulleys 14 due to the action of the limiting pulleys 14 which are arranged on the top wall of the water box 200 in a downward protruding manner, so that only sliding friction is generated at the detergent box upper cover 500, and the friction resistance in the pushing and pulling process of the detergent box 100 is effectively reduced.

In this embodiment, at least two rows of limiting pulleys 14 are disposed on the top wall of the water box 200, each row includes a plurality of limiting pulleys 14 arranged at intervals along the push-pull movement direction of the detergent box 100, and the two rows of limiting pulleys 14 are disposed above the left side and the right side of the detergent box 100 respectively; preferably, the two rows of position-limiting pulleys 14 are symmetrically arranged with respect to the axis of the detergent box 100.

Two rows of limiting pulleys are respectively arranged at the positions close to the left side and the right side of the detergent box, so that the left side and the right side of the upper cover of the detergent box are respectively limited by the limiting pulleys in a sliding manner, the left side and the right side of the upper cover of the detergent box are effectively limited and supported, and the left side and the right side of the detergent box are prevented from generating a vertical direction deflection; simultaneously, two are listed as the department and set up the spacing pulley that a plurality of intervals were arranged respectively about to carry out effective spacing everywhere to the detergent box, carry out the effective sliding friction of omnidirectional to the detergent box, improve the stationarity of detergent box push-and-pull switching process.

EXAMPLE III

As shown in fig. 1 to 3 and 13 to 18, in the present embodiment, a push latch applied to a push-latch type detergent box of the present invention is described, which includes a latch tongue 4 and a push latch body 5, wherein the latch tongue 4 is movably inserted into the push latch body 5, a cam 7 is installed in the push latch body 5, and a groove matched and locked with a latch hook 21 at an end portion of the latch tongue 4 is formed on the cam 7; the inside of the spring pushing lock body 5 is also provided with a lock catch reed 8, one end of the lock catch reed 8 is fixed with the spring pushing lock body 5, and the other end of the lock catch reed 8 is provided with a lock catch 24 matched with a lock catch slide way on the cam 7 so as to lock or unlock the rotation action of the cam 7.

In this embodiment, the outer periphery of the cam 7 is respectively provided with a first protrusion 19 and a second protrusion 20 protruding in the radial direction, and a gap between the first protrusion 19 and the second protrusion 20 forms a groove correspondingly matched with a locking hook 21 at the end of the locking tongue 4.

As shown in fig. 14, in this embodiment, the end of the bolt 4 is in limit contact with the first protrusion 19, the end of the bolt 4 is provided with a lock hook hole 22 into which the second protrusion 20 is inserted, so that when the bolt 4 moves towards the push-spring lock body 5 under the action of the push-spring external force, the bolt pushes the first protrusion 19 to rotate the cam 7, so that the second protrusion 20 is inserted into the lock hook hole 22 at the end of the bolt 4, the lock hook 21 at the end of the bolt 4 is locked in the groove between the first protrusion 19 and the second protrusion 20, the lock catch 24 is locked with the cam 7 to prevent the cam 7 from rotating again, and the push-spring lock assembly 700 is in a locked state;

as shown in fig. 13, in this embodiment, when the latch tongue 4 is moved into the push latch body 5 by the external force of the push latch again, the latch tongue 4 pushes the first protrusion 19 to rotate the cam 7 again, so that the latch catch 24 is unlocked from the cam 7, and the cam 7 is in a free state, the latch tongue is driven to move out of the push latch body by the restoring force (preferably, the restoring force is provided by a torsion spring installed at the cam to drive the cam to move in the direction of pushing the latch tongue out), the cam rotates reversely, so that the second protrusion 20 is separated from the latch hook hole 22 at the end of the latch tongue 4, the latch hook 21 at the end of the latch tongue 4 slides out from the groove between the first protrusion 19 and the second protrusion 20, and the push latch assembly is in an unlocked state.

In this embodiment, the position of the latch bolt 4 and/or the cam 7 is provided with a reset driving structure, and the reset driving structure provides a restoring force for the latch bolt 4 and/or the cam 7 to push the latch bolt 4 to move towards the outer direction of the push latch body 5. Preferably, a torsion spring is arranged at the cam 7, and when the cam 7 is locked with the lock catch 24, the torsion spring is in a stretching state and provides restoring force which rotates reversely for the cam 7 and pushes the bolt 4 to move towards the outside of the push spring lock body 5; when the cam 7 is disengaged from the catch 24, the torsion spring is in a free state.

When the second protrusion 20 is inserted into the latch hook hole 22 at the end of the latch bolt 4 and the latch hook 21 at the end of the latch bolt 4 is buckled in the groove between the first protrusion 19 and the second protrusion 20, the cam 7 is locked by the latch 24, so that the cam 7 cannot rotate, and the restoring force provided by the torsion spring cannot overcome the locking force of the latch 24, so that the push-spring lock body 5 and the latch bolt 4 cannot be locked with each other and separated; when the lock catch 24 unlocks the cam 7 and the cam 7 can rotate freely, restoring force provided by the torsion spring drives the cam 7 to rotate reversely so as to push the bolt 4 to move towards the direction of separating from the spring-pushing lock body 5, and the bolt 4 and the spring-pushing lock body 5 are separated from each other.

In this embodiment, a third protrusion 23 is disposed on the outer circumferential surface of the cam 7, and the third protrusion 23 forms a lock slide for limiting the sliding displacement of the lock 24 at the end of the lock reed 8; the lock catch slide way comprises a sliding locking surface a, a lock catch groove surface b and a sliding unlocking surface c which are sequentially connected end to end;

when the cam 7 is in the initial state of free rotation (as shown in fig. 15), after applying a pushing and ejecting external force to the bolt 4, the cam 7 is driven to rotate, so that the lock catch 24 in the free state moves along the sliding locking surface a and slides into the lock catch groove surface b from the first end (as shown in fig. 16), and the lock catch 24 at the end part of the lock catch spring 8 locks the cam 7; after the external force of the rebound is applied again, the driving cam 7 rotates again, so that the latch 24 slides out of the latch groove surface b from the second end (as shown in fig. 17), and the driving cam 7 rotates reversely by a certain angle under the action of the restoring force, so that the latch 24 moves to the free state (as shown in fig. 18) along the slide unlocking surface c, and the cam 7 returns to the initial state capable of rotating freely.

In this embodiment, the third protrusion 23 extends along the circumferential direction of the cam 7, one end of the third protrusion 23 is a free end that is separated from the lock of the lock spring, the other end of the third protrusion 23 is provided with a locking groove that is recessed inwards for the lock 24 to slide into for locking, and the inner wall of the locking groove forms a lock groove surface b; one side surface of the third protrusion 23 is an inclined surface which gradually inclines outwards from the free end to the locking groove direction, and the inclined surface forms a sliding locking surface a; the other side of the third bulge is a slope surface which is gradually increased from the self-locking groove to the direction of the free end, and the slope surface forms a sliding unlocking surface c.

In this embodiment, the middle of the locking reed 8 is connected to one side of the spring pushing lock body 5 close to the sliding unlocking surface c through the return spring 18 to provide a return elastic force for the locking reed 8, and the return elastic force drives the locking buckle 24 of the locking reed 8 to displace from the sliding locking surface a to the sliding unlocking surface c.

In this embodiment, the locking groove includes an L-shaped channel formed by an axial section and a circumferential section, the axial section extends in the axial parallel direction of the pulley, the open end of the axial section is connected with the sliding locking surface a, and the other end of the axial section is connected with one end of the circumferential section; the circumferential section extends from the axial section to the direction far away from the free end of the third bulge 23, and the opening end of the axial section is connected with the locking groove surface b. Preferably, the open end of axial section is equipped with the guide and keeps off the muscle, and the one end that the guide kept off the muscle links to each other with the upside of axial section open end, the other end is buckled back and is radially extended along the cam and with the axial section open end opposite side between a certain clearance to guarantee that the hasp from the clearance slides in the locking inslot through the axial section open end, and can't reverse roll-off. Further preferably, one side of the circumferential section is directly formed by a sliding unlocking surface c to limit and block the blocking rib, so that the blocking rib slides along the circumferential section of the locking groove and slides out from the opening end of the circumferential section.

Preferably, one side of the radial section of the locking groove is an inclined plane which inclines from the middle part to the two ends respectively towards the locking groove, so that the lock catch can slide in and out of the locking groove conveniently.

Preferably, in this embodiment, the cam is provided with a fourth protrusion 25, the fourth protrusion 25 is disposed between the second protrusion 20 and the third protrusion 23, and the fourth cam 25 and the latch bolt 4 are at least partially interfered and overlapped on a vertical surface, so that the latch bolt 4 pushes the cam 7 to rotate to a certain angle, and then the fourth protrusion 25 and the latch bolt 4 are in mutual interference contact, thereby preventing the rotation angle of the cam 7 from being too large, and avoiding the situation that the latch bolt 4 pushes too much, which causes the cam 7 to rotate too much to cause the falling off.

In this embodiment, one end of the locking spring 8 is fixedly mounted to the spring pushing lock body 5 through the mounting bolt 26, so that the locking spring 8 can elastically rotate and/or move relatively, and the locking catch 24 at the other end of the locking spring 8 is rotated by the cam 7 to move along the locking catch slide.

In this embodiment, the locking spring 8 is inclined from bottom to top, and the lower end of the locking spring is fixedly mounted on the push-latch body 5 through a mounting bolt 26 which is arranged in a penetrating manner and is vertical to the axis; the upper end is provided with a lock catch 24 which is bent downwards and is vertical to the axis.

The end part of the locking spring leaf is arranged on the push spring lock body through a mounting bolt, so that the locking spring leaf can rotate around the axis direction of the bolt, the locking at the other end of the spring leaf can rotate around the axis direction of the bolt and elastically jump and move along the axis direction of the bolt, and the locking at the end part of the elastic spring leaf can move along a limiting slide way formed by the third protrusion.

The specific working process of the push latch is as follows:

the initial state is a push-latch unlocking state, at this time, the lock catch 24 is at the free end of the third cam, and the cam is in a free state;

as shown in fig. 15, an external pushing force is provided to the locking tongue 4, the locking tongue 4 pushes the cam 7 to rotate counterclockwise, the lock catch 24 moves from the free state at the upper end of the third protrusion 23 to the lower end of the third protrusion 23 along the sliding locking surface a formed by the inclined surface until the lock catch 24 moves to the lower end of the sliding locking surface a, and the lock catch 24 moves to the lower end of the third protrusion 23 under the action of the return spring 18;

as shown in fig. 16, the open end of the lock catch 24 slides into the locking groove from the axial section of the locking groove, so that the lock catch 24 is located at a lock catch groove surface b formed by the inner wall of the locking groove, at this time, the lock hook 21 at the end of the bolt 4 is located in the groove between the first protrusion 19 and the second protrusion 20, the second protrusion 20 is inserted into the lock hook hole 22, and the lock-spring lock is in the locking state, so that the locking cooperation between the lock catch 24 and the cam 7 is realized, the restoring force applied to the lock-spring lock body 5 by the elastic component 600 is overcome, the cam 7 is prevented from generating clockwise return rotation, and the lock-spring lock body 5 is prevented from generating movement in the direction of disengaging the bolt 4;

as shown in fig. 17, when a spring-pushing external force is applied to the latch bolt 4 again, the latch bolt 4 pushes the cam 7 to rotate counterclockwise again, and the lock catch 24 moves to the opening end of the circumferential section along the circumferential section of the locking groove;

as shown in fig. 18, the latch 24 slides out from the opening end of the circumferential section of the locking groove, and under the action of the return spring 18, the latch 24 is pulled to the lower end of the sliding unlocking surface c, the cam 7 moves clockwise under the action of the restoring force provided by the torsion spring, and the latch 24 moves towards the upper end of the third protrusion 23 along the sliding unlocking surface c until the latch 24 returns to the initial state.

Example four

As shown in fig. 1 to 18, the present embodiment describes a push-type detergent box 100, including a water box 200 mounted on a washing machine housing 300, wherein the detergent box 100 is installed in the water box 200 and can be pulled out and pushed in; a push latch assembly 700 is further disposed between the water tank 200 and the detergent tank 100 to change a locking state of the push latch assembly 700 after a push external force is provided to the detergent tank 100, so that the water tank 200 and the detergent tank 100 are locked or unlocked.

The washing agent box is controlled by the push-spring lock and provided with pushing power by the elastic component, so that the washing agent box can realize the use purposes of automatic locking and push-spring opening only by small push-spring external force, and the washing agent box has the function of push-spring opening and closing.

In this embodiment, the detergent box 100 is provided with a bolt 4, and the water box 200 is provided with a push-spring lock body 5 corresponding to the bolt 4; after the detergent box 100 is pushed into the water box 200 and the external force of the push spring is applied, the bolt 4 extends into the push spring lock body 5 and is locked; after the external pushing and ejecting force is applied again, the bolt 4 and the pushing and ejecting lock body 5 are unlocked, so that the aim of controlling the locking or unlocking of the detergent box 100 can be fulfilled only by applying the external pushing and ejecting force to the detergent box 100.

In this embodiment, a handle 400 is disposed at the front end of the detergent box 100, a latch 4 horizontally extending toward the water box 200 is mounted on the handle 400, a push-spring lock body 5 is mounted on the water box 200, and a lock hole of the push-spring lock body 5 is disposed corresponding to the latch 4, so that the latch 4 extends into the push-spring lock body 5 from the lock hole after the detergent box 100 is pushed into the water box 200, and the latch 4 and a locking mechanism in the push-spring lock body 5 are locked or unlocked under the action of an external force of the push-spring.

In this embodiment, the push latch installed in the structure of the push-latch type detergent box 100 is the push latch described in the third embodiment, the push latch body 5 described in the third embodiment is installed on the water box 200, and the latch 4 described in the third embodiment is correspondingly installed on the latch handle 400 at the front end of the detergent box 100, so that the latch 4 is correspondingly inserted into the push latch body 5, and the purpose of locking or unlocking the latch 4 and the push latch body 5 is achieved. Preferably, the periphery of the handle protrudes out of the detergent box, the latch is mounted on the protruding part on the lower side of the handle, and the push latch body 5 is correspondingly mounted below the lower side wall of the water box 200, so that after the detergent box 100 is completely and correspondingly pushed into the water box 200, the latch 4 at the front end of the detergent box 100 is correspondingly inserted into the push latch body 5, and the locking between the two is realized.

EXAMPLE five

As shown in fig. 1 to 12, the present embodiment describes a push-spring type detergent box 100, which includes a water box 200 mounted on a washing machine housing 300, wherein the detergent box 100 is installed in the water box 200 and can be pulled out and pushed in; an elastic member 600 is provided between the water tank 200 and the detergent tank 100 for providing power to eject the detergent tank 100.

The elastic component is arranged between the detergent box and the water box to apply a pushing elastic force to the detergent box and drive the detergent box to move towards the outside of the water box, so that after a pushing elastic lock arranged on the pushing elastic detergent box is unlocked, the detergent box is driven to automatically pop up the water box by the pushing elastic force applied by the elastic component, and the purpose that the detergent box is automatically pushed and opened is achieved.

As shown in fig. 10 and 11, in this embodiment, the elastic component 600 includes a push rod sleeve 15, and a push rod 16 inserted into the push rod sleeve 15 and capable of sliding along the axial direction, one end of the push rod 16 is connected to the push rod sleeve 15 through a compressed spring 17, and the other end of the push rod 16 telescopically penetrates through a corresponding end opening of the push rod sleeve 15.

In this embodiment, the push rod sleeve 15 is fixedly connected to the detergent box 100, and the telescopic end of the push rod 16 penetrates through the push rod sleeve 15 and contacts with the inner wall of the water box 200 in a limited manner.

In this embodiment, as shown in fig. 10 and 11, the push rod sleeve 15 is fixedly connected to the water box 200, and the telescopic end of the push rod 16 penetrates through the push rod sleeve 15 and is in limited contact with the outer wall of the detergent box 100.

The push rod sleeve is correspondingly arranged on the detergent box or the water box, and the telescopic end of the push rod is correspondingly contacted with the water box or the detergent box, so that after the compression spring applies elasticity to the push rod, the detergent box is driven to move towards the direction of pushing out the water box, and the purpose that the detergent box is automatically pushed away by the elasticity provided by the elastic component is achieved.

In this embodiment, the push rod 16 and the push rod sleeve 15 are coaxially arranged, and the axes of the push rod sleeve 15 and the push rod 16 are both parallel to the push-pull movement direction of the detergent box 100; preferably, the axes of the push rod sleeve 15 and the push rod 16 coincide.

In this embodiment, one end of the push rod sleeve 15 is hermetically arranged, and the other end is provided with an opening through which the telescopic end of the push rod 16 passes; one end of the push rod 16 penetrating the push rod sleeve 15 is a penetrating end, the penetrating end is provided with a mounting part protruding outwards in the radial direction, the periphery of the mounting part is correspondingly attached to the inner wall of the push rod sleeve 15, and a spring 17 in a compressed state is arranged between the mounting part and the sealing end of the push rod sleeve 15; the radial diameter of the opening of the push rod sleeve 15 is smaller than the outer diameter of the mounting portion to prevent the push rod 16 from falling out.

In this embodiment, a damping assembly is disposed between the push rod sleeve 15 and the push rod 16 to increase a damping force of relative displacement between the push rod 15 and the push rod sleeve 16, so as to correspondingly adjust a speed of the detergent box when the detergent box is opened.

In this embodiment, at least one elastic component 600 is respectively installed on the left and right sides of the rear end of the detergent box 100, so as to ensure the stress uniformity during the pushing and pulling movement of the left and right sides of the detergent box 100, and avoid the occurrence of position deviation during the pushing out process of the detergent box 100.

In this embodiment, the elastic component 600 is installed at the gap between the rear end of the detergent box 100 and the water box 200, the elastic sleeve 15 extends along the push-pull moving direction of the detergent box 100, one end of the push rod sleeve 15 is fixedly connected with the rear end of the detergent box 100, and the telescopic end of the push rod 16 extends out from the other end of the push rod sleeve 15 and is in limit contact with the inner wall of the water box 200; the axial length of the push rod sleeve 15 is less than or equal to the gap distance between the detergent box 100 and the water box 200; when the spring 17 is in a free state, the sum of the extending length of the telescopic end of the push rod 16 and the axial length of the push rod sleeve 15 is greater than the gap distance between the water box 200 and the rear wall of the detergent box 100, so that the purpose that the detergent box 100 is installed in the water box 200 and automatically pushed and bounced by the elastic component to locate the water box 200 is achieved.

EXAMPLE six

As shown in fig. 1 to 12, 19 and 20, the present embodiment describes a push-spring type detergent box 100, which includes a water box 200 mounted on a washing machine housing 300, and a pull-out and push-in detergent box 100 is mounted in the water box 200; the left side and the right side of the detergent box 100 are respectively provided with a roller guide groove 6 which extends along the parallel direction of the axis of the detergent box 100 and has an opening at the lower end, the inner wall of the water box 200 is provided with a plurality of pulleys 1 with wheel surfaces arranged along the axis direction of the roller guide groove 6, and the upper part of each pulley 1 extends into the roller guide groove 6 and is contacted with the top wall of the roller guide groove 6; the end of the roller guide 6 is provided with an opening 27 for the pulley 1 to enter the roller guide 6.

In this embodiment, the one end that the gyro wheel guide slot stretched into water box 200 is equipped with the opening 27 that is convenient for pulley 1 to slide into in gyro wheel guide slot 6, opening 27 is the tubaeform opening 27 of the width that widens gradually from inside to outside to guide pulley 1 gets into in gyro wheel guide slot 6 from tubaeform opening 27, and make inside quick, the convenient gyro wheel guide slot 6 that slides into of pulley 1 through setting up tubaeform opening 27 that expands money gradually outward.

In this embodiment, at least one side of the opening 27 is provided with a guiding rib 28, and the guiding rib 28 is an arc-shaped surface which is inclined from the opening 27 outwards to the direction away from the axis of the roller guiding groove 6. Preferably, the left and right sides of the detergent box 100 are respectively provided with a roller guide groove 6, one side of the opening 27 of the left and right roller guide grooves 6 close to the axis direction of the detergent box 100 is respectively provided with a guide rib 28 which is bent and extended outwards, and the guide ribs 28 are respectively and gradually far away from the axis direction of the detergent box 100 outwards from the opening 27; the end surface of the guiding rib 28 on the other side of the opening 27 of the roller guiding groove 6 is an inclined surface gradually inclined from outside to inside to further guide the pulley to conveniently slide into the roller guiding groove.

In this embodiment, the end surface of the guide rib 28 is an inclined surface that gradually inclines inward from the outside to the inside of the opening, so that the opening end surface of the roller guide groove 6 is an inclined surface that gradually inclines inward from the opening 27, and the pulley 1 is further guided into the opening 27 and into the roller guide groove 6 from the opening 27.

In this embodiment, the front end of the detergent box 100 is provided with the handle 400, the front end of the roller guide groove 6 is sealed by the handle 400, the rear end of the roller guide groove 6 is provided with the opening 27 for the pulley 1 to enter the roller guide groove 6, and when the detergent box 100 is installed and disassembled, the opening 27 arranged at the rear end of the roller guide groove 6 of the detergent box 100 is only required to be aligned with the corresponding side pulley 1, so that the detergent box 100 can be quickly assembled and disassembled.

EXAMPLE seven

As shown in fig. 1 to 12, the present embodiment describes a push-spring type detergent box 100, which includes a water box 200 mounted on a washing machine housing, wherein the detergent box 100 is installed in the water box 200 and can be pulled out and pushed in; at least one positioning column is arranged on the detergent box 100, and positioning holes corresponding to the positioning columns are arranged on the water box 200, so that the positioning columns are inserted into the corresponding positioning holes after the detergent box 100 is pushed into the water box 200.

Through set up the reference column and the locating hole that correspond the grafting between detergent box 100 and water box 200 to make detergent box 100 push into water box 200's corresponding position under the reference column effect, and then guarantee the degree of consistency in detergent box 100 periphery gap, improve the pleasing to the eye degree in the detergent box 100 outside.

In this embodiment, the detergent box 100 is provided with a first positioning column 2 with a circular cross section and a second positioning column 3 with a non-circular cross section; the water box 200 is provided with a first positioning hole which is arranged corresponding to the first positioning column 2 and has a corresponding circular section and a second positioning hole which is arranged corresponding to the second positioning column 3 and has a corresponding non-circular section. Preferably, the second positioning column 3 is a square column structure when the cross section is taken, and the second positioning hole is a hole structure corresponding to the square when the cross section is taken.

Through set up two different reference columns in cross-section between detergent box and water box, make the cross-section for circular shape first reference column provides the guide effect for detergent box inserts to make the cross-section be square second reference column and provide the location on the detergent box push-and-pull direction looks perpendicular for detergent box, avoid the detergent box to produce the skew in vertical direction.

In this embodiment, each positioning column extends along the pushing and pulling direction of the detergent box 100, so as to guide the detergent box 100 to be pushed in.

In the embodiment, the end part of the positioning column is a conical surface with gradually narrowed diameter; preferably, the bottom surface of the positioning hole is a corresponding conical surface which is attached to the end of the positioning column, so that the positioning column can be guided to be inserted into the positioning hole.

In this embodiment, a handle 400 is disposed at an end of the detergent box 100, a positioning column extending toward the water box 200 is disposed at a side of the handle 400 attached to the water box 200, and a corresponding positioning hole inserted into the positioning column is disposed on an outer end surface of the water box 200.

In this embodiment, the outer circumference of the handle 400 protrudes out of the outer circumference of the detergent box 100, and the first positioning column 2 and the second positioning column 3 are respectively disposed on the left and right sides of the outer circumference of the handle 400 protruding out of the detergent box 100.

In this embodiment, the front end of the water box 200 is provided with a mounting part corresponding to the handle 400, and the mounting part is integrally provided with the washing machine housing 300; the mounting part is provided with a first positioning hole and a second positioning hole which are respectively coaxial with the first positioning column 2 and the second positioning column 3 and are correspondingly arranged on the same cross section.

The positioning column is arranged at the rear side of the handle at the front end of the detergent box, so that the positioning column is hidden between the contact surfaces of the detergent box and the water box; and make two reference columns set up respectively in the detergent box left and right sides, make the clearance of detergent box left and right sides adjusted by corresponding respectively, avoid the emergence of detergent box effect direction skew condition, further guarantee the degree of consistency in detergent box periphery clearance.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A push-spring type detergent box comprises a water box arranged on a shell of a washing machine, wherein a pull-out and push-in detergent box is arranged in the water box; the washing machine is characterized in that a sliding rail is arranged between the water box and the detergent box, and a plurality of pulleys contacted with the detergent box are arranged on the sliding rail so as to reduce friction in the process of pulling out and pushing in the detergent box;

the left side and the right side of the detergent box are respectively provided with a roller guide groove which extends along the parallel direction of the axis of the detergent box and is provided with an opening at the lower end, the inner wall of the water box is provided with a plurality of pulleys with wheel surfaces arranged along the axis direction of the roller guide groove, and the upper part of each pulley extends into the roller guide groove and is contacted with the top wall of the roller guide groove;

the left side wall and the right side wall of the water box are respectively provided with a bending part which is bent inwards and horizontally, and the bending parts are correspondingly arranged below the roller guide grooves; a plurality of mounting grooves which are arranged at intervals are arranged on the bending part, vertically arranged pulleys are respectively mounted in the mounting grooves, and the central shaft of each pulley is vertical to the axis direction of the roller guide groove;

a push-spring lock assembly is arranged between the water box and the detergent box so as to change the locking state of the lock assembly after providing a push-spring external force to the detergent box and lock or unlock the water box and the detergent box; an elastic component is arranged between the water box and the detergent box and used for providing power for pushing and ejecting the detergent box;

the push spring lock component comprises a push spring lock body and a lock tongue, wherein a cam is arranged in the push spring lock body, and a groove matched with the lock hook at the end part of the lock tongue for locking is formed in the cam; the push spring lock body is also internally provided with a lock catch reed, one end of the lock catch reed is fixed, and the other end of the lock catch reed is provided with a lock catch matched with the lock catch slide rail on the cam so as to lock or unlock the rotation action of the cam.

2. The cartridge of claim 1, wherein a central shaft is provided at the center of the pulley, and the central shaft is horizontally and pivotally mounted on the water tank.

3. The cartridge of claim 2, wherein the central shaft of the pulley is independently disposed, the central shaft horizontally penetrates through the center of the pulley, two ends of the central shaft respectively penetrate into the left and right side walls of the mounting groove, and the pulley can rotate around the axis of the central shaft relative to the central shaft and/or the pulley and the central shaft together;

4. The cartridge of claim 1, wherein the center of the pulley is in contact with the left and right sidewalls of the mounting groove, the outer circumference of the pulley is spaced apart from the left and right sidewalls of the roller guide groove, and the outer circumference of the pulley is in contact with the top wall of the roller guide groove.

5. The push type detergent box according to claim 4, wherein a limiting protrusion is provided at the center of the pulley and protrudes to the left and right sides along the axial direction, and the outer side surfaces of the limiting protrusions at the two sides are vertical surfaces in limiting contact with the left and right side walls of the mounting groove;

6. The push-type detergent box according to claim 1, wherein the bent portions of the left and right side walls of the water box are horizontally disposed on the same height plane, the outer sides of the bent portions are connected to a first vertical portion extending vertically upward, and the inner sides of the bent portions are connected to a second vertical portion extending vertically downward; the first vertical part is arranged corresponding to the outer side of the roller guide groove, and the second vertical part is arranged corresponding to the side wall of the detergent box.

7. A washing machine characterized by: a push-type detergent box according to any one of claims 1 to 6 mounted thereon.