CN113047003A - Washing machine water inlet check structure and washing machine - Google Patents

Abstract

The invention relates to the technical field of washing machines, and discloses a washing machine water inlet non-return structure and a washing machine, wherein the washing machine water inlet non-return structure comprises: one end of the water guide pipe is connected with the washing machine disc seat, and the other end of the water guide pipe is in plug fit with a water inlet hole in an outer barrel cover of the washing machine; and a backstop assembly disposed inside the outer tub of the washing machine, the backstop assembly being configured to selectively block the water inlet hole. According to the water inlet non-return structure of the washing machine, the non-return component selectively blocks the water inlet hole, so that heated water vapor is prevented from leaking to scald a user; because the arrangement of the non-return component does not need to enable the water guide pipe and the water inlet hole to be arranged in a sealing mode, the water guide pipe and the water inlet hole can be matched in a plugging mode, the installation is convenient, and then the washing machine disc seat and the outer barrel cover are of an independent structure, and the maintenance is convenient. The washing machine is convenient to disassemble and assemble and low in maintenance cost; the heated water vapor can be prevented from leaking out.

Description

Washing machine water inlet check structure and washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to a water inlet non-return structure of a washing machine and the washing machine.

Background

With the increasing living standard of people, the washing machine has become one of the necessary household appliances in the home. The rubber hose of the tray seat of the existing top-opening type heating washing machine is arranged on the water inlet hole of the outer barrel cover in a fixing piece and gluing mode so as to meet the water inlet requirement. However, this mounting method has the following problems: 1. the clearance between the outer barrel cover and the bottom side of the disk seat is small, so that the fixing operation of the rubber hose and the water inlet hole is inconvenient; 2. because the disk seat and the outer barrel cover are fixedly connected by the rubber hose, if the connected rubber hose needs to be disassembled when parts such as the inner and outer barrels, the disk seat and the like are maintained, the maintenance is inconvenient; 3. in order to prevent the heated air inside the washing machine from leaking, the sealing is required to be good, and the assembly skill of workers is required to be high.

Therefore, the water inlet check structure of the washing machine is urgently needed to be designed, the installation is convenient, the maintenance is convenient, and the heated water vapor is prevented from leaking.

Disclosure of Invention

The invention aims to provide a washing machine water inlet non-return structure and a washing machine, and solves the technical problems of inconvenience in installation and difficulty in maintenance due to the fact that a tray seat and an outer barrel cover of an existing washing machine are connected.

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

the invention provides a water inlet non-return structure of a washing machine, which comprises:

one end of the water guide pipe is connected with the washing machine disc seat, and the other end of the water guide pipe is in plug fit with a water inlet hole in an outer barrel cover of the washing machine; and

a backstop assembly disposed inside an outer tub of the washing machine, the backstop assembly being configured to be capable of selectively blocking the water inlet hole.

According to the water inlet non-return structure of the washing machine, the non-return component can selectively block the water inlet hole, so that heated water vapor is prevented from leaking to scald a user; because the arrangement of the non-return component does not need to lead the water guide pipe and the water inlet hole to be arranged in a sealing way, the water guide pipe and the water inlet hole can be matched in a plugging and pulling way, and then the washing machine disc seat and the outer barrel cover are of an independent structure, and the maintenance is convenient.

As a preferable scheme of the above washing machine water inflow non-return structure, the non-return assembly comprises:

the first non-return main body is connected with the outer barrel cover and buckled with the water inlet hole, and a water outlet is formed in the first non-return main body;

a switch structure rotatably provided on the first backstop body or the tub cover, the switch structure being configured to selectively open or close the water outlet.

The switch structure is rotatably arranged on the first non-return main body or the outer barrel cover, and the water outlet can be selectively opened or closed through the switch structure, so that water can be conveniently fed or heated water vapor can be prevented from leaking.

As a preferable scheme of the water inlet non-return structure of the washing machine, the non-return assembly further comprises a sealing rib, the sealing rib is arranged on the inner wall of the outer barrel cover, and the first non-return main body, the switch structure and the sealing rib are matched to enclose a sealing space for buckling the water inlet hole.

The first non-return main body, the switch structure and the sealing flange are matched to enclose a sealing space for buckling the water inlet hole, and the sealing effect on the water inlet hole is improved.

As a preferable scheme of the water inlet non-return structure of the washing machine, the non-return component selectively engages with the water inlet, and the non-return component has a first state engaging with the water inlet and a second state disengaging from the water inlet.

The non-return component is provided with a first state of buckling the water inlet hole and a second state of separating from the water inlet hole, and when water needs to be fed into the washing machine, the non-return component is separated from the water inlet hole so as to facilitate water feeding; when water does not need to enter the washing machine, the check assembly is buckled with the water inlet hole to prevent heated water vapor from leaking.

As a preferable scheme of the water inlet non-return structure of the washing machine, the non-return assembly includes a second non-return main body, a middle portion of the second non-return main body is rotatably connected to the outer tub cover, two ends of the second non-return main body are respectively provided with a non-return cover and a counterweight structure, the non-return cover is configured to be capable of being fastened to the water inlet, and the counterweight structure is configured to be capable of resetting the second non-return main body disengaged from the water inlet.

The second non-return main body of the structure can be switched between the first state and the second state in a rotating mode, and is simple in structure and convenient to operate.

As a preferable scheme of the above washing machine water inlet non-return structure, the non-return assembly further includes a mounting base, the mounting base is disposed on the outer tub cover, the mounting base is provided with a mounting hole, two sides of the second non-return main body are provided with rotating shafts, and the rotating shafts are correspondingly mounted in the mounting hole and can rotate in the mounting hole.

The second backstop main body is matched with the outer barrel cover in a rotating mode through the matching of the mounting base and the rotating shaft, and the structure is simple and easy to achieve.

As a preferable aspect of the above water inlet non-return structure of the washing machine, the non-return assembly includes a third non-return body configured to be able to approach or separate from the water inlet hole along an axial direction of the water inlet hole to engage or disengage the water inlet hole. The third non-return main body is close to or far away from the water inlet hole along the axis direction of the water inlet hole so as to be buckled or separated from the water inlet hole, and the selective buckling of the water inlet hole can be realized, so that the realization is facilitated.

As a preferable scheme of the water inlet non-return structure of the washing machine, a step structure is arranged on the inner wall of the outer barrel cover and at the position of the water inlet, a through hole is arranged on the step structure and communicated with the water inlet, and the non-return component is buckled with the step structure.

The non-return component is buckled on the step structure, so that the water inlet hole is conveniently sealed.

As an optimal scheme of the water inlet non-return structure of the washing machine, the diameter of the water inlet is larger than that of the through hole, one end of the water guide pipe, which is in plug fit with the water inlet, is provided with a water retaining structure, and the size of the water retaining structure is matched with the inner diameter of the water inlet. The size of the water retaining structure is matched with the inner diameter of the water inlet hole, so that water can be prevented from splashing.

The invention also provides a washing machine, which comprises the water inlet non-return structure of the washing machine. The washing machine is convenient to disassemble and assemble and low in maintenance cost; the heated water vapor can be prevented from leaking out.

The invention has the beneficial effects that:

according to the water inlet non-return structure of the washing machine, the non-return component can selectively block the water inlet hole, so that heated water vapor is prevented from leaking to scald a user; because the arrangement of the non-return component does not need to lead the water guide pipe and the water inlet hole to be arranged in a sealing way, the water guide pipe and the water inlet hole can be matched in a plugging and pulling way, and then the washing machine disc seat and the outer barrel cover are of an independent structure, and the maintenance is convenient.

The washing machine provided by the invention is convenient to disassemble and assemble and low in maintenance cost; the heated water vapor can be prevented from leaking out.

Drawings

Fig. 1 is a schematic structural view of a water inlet check structure of a washing machine mounted on an outer tub of the washing machine according to an embodiment of the present invention;

fig. 2 is a schematic structural view illustrating a ratchet assembly mounted on an outer barrel cover according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an outer barrel cover according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a backstop assembly mounted on an outer barrel cover after a switch structure is removed according to an embodiment of the invention;

FIG. 5 is an enlarged partial schematic view at A of FIG. 4;

fig. 6 is a schematic structural view illustrating a relative position of a water introduction duct and a backstop assembly according to an embodiment of the present invention;

fig. 7 is a structural view illustrating a relative position of a water introduction duct and a backstop assembly according to a second embodiment of the present invention;

fig. 8 is a schematic structural diagram of a backstop assembly according to a second embodiment of the present invention.

In the figure:

1. a water conduit; 11. a water retaining structure;

2. a backstop assembly; 21. a first non-return body; 22. a switch structure; 23. sealing the flange;

210. a water outlet; 211. a base plate; 212. a flanging structure; 213. a first mounting post; 231. a first flange; 232. a second flange;

24. a second non-return body; 241. a rotating shaft; 25. a non-return cover; 26. a counterweight structure;

100. an outer barrel cover; 101. a water inlet hole; 102. a step structure; 1021. a through hole; 1022. a first step; 1023. a second step; 103. a second mounting post; 200. an outer barrel body.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment is as follows:

the rubber hose of the tray seat of the top-opening type heating washing machine is arranged on the water inlet hole of the outer barrel cover in a fixing piece and gluing mode so as to meet the water inlet requirement. However, this mounting method has the following problems: 1. the clearance between the outer barrel cover and the bottom side of the disk seat is small, so that the fixing operation of the rubber hose and the water inlet hole is inconvenient; 2. because the disk seat and the outer barrel cover are fixedly connected by the rubber hose, if the connected rubber hose needs to be disassembled for maintaining the inner and outer barrels, the disk seat and other parts, the maintenance is inconvenient; 3. in order to prevent the heated air inside the washing machine from leaking, the sealing is required to be good, and the assembly skill of workers is required to be high. In order to solve the above problems, the present invention provides a water inlet non-return structure of a washing machine, as shown in fig. 1 and 2, an outer tub cover 100 of an outer tub is connected to an outer tub 200, the water inlet non-return structure of the washing machine comprises a water guide pipe 1 and a non-return component 2, one end of the water guide pipe 1 is connected to a washing machine tray (not shown), and the other end is in inserted connection with a water inlet 101 of the outer tub cover 100 of the washing machine. A backstop assembly 2 is disposed inside the outer tub of the washing machine, and the backstop assembly 2 is configured to be capable of selectively blocking the water inlet hole 101.

According to the water inlet non-return structure of the washing machine, the non-return component 2 can selectively block the water inlet hole 101, so that heated water vapor is prevented from leaking to scald a user; because the non-return component 2 is arranged without sealing the water guide pipe 1 and the water inlet hole 101, the water guide pipe 1 and the water inlet hole 101 can be inserted and pulled in a matching manner, the assembly and disassembly are convenient, the requirement on an operator is reduced, and the washing machine tray seat and the outer barrel cover 100 are further of an independent structure and are convenient to maintain.

Optionally, the water guide pipe 1 is a corrugated pipe, can be lengthened and shortened, can adjust the length of the water guide pipe 1 during use, and is wide in application range and convenient to use.

As shown in fig. 3-5, a step structure 102 is disposed on the inner wall of the outer tub cover 100 and at the position of the water inlet 101, a through hole 1021 is disposed on the step structure 102, the through hole 1021 is communicated with the water inlet 101, and the non-return component 2 is fastened to the step structure 102, so as to block the water inlet 101.

As shown in fig. 3, the step structure 102 includes a first step 1022 and a second step 1023, the first step 1022 and the second step 1023 communicate with each other inside, and the first step 1022 has an outer diameter larger than that of the second step 1023.

Optionally, the diameter of the water inlet 101 is greater than that of the through hole 1021, one end of the water guide pipe 1, which is in plug fit with the water inlet 101, is provided with a water retaining structure 11, and the size of the water retaining structure 11 is matched with the inner diameter of the water inlet 101, so that water splashing can be prevented. Preferably, the water retaining structure 11 is a cover structure facing the inside of the washing machine, the cover structure is sleeved at one end of the water guide pipe 1, which is in splicing fit with the water inlet hole 101, a certain distance is formed between the cover structure and the end of the water guide pipe 1, and the size of the cover structure is matched with the inner diameter of the water inlet hole 101, so that the water retaining structure 11 can be placed in the water inlet hole 101, and the water guide pipe 1 is spliced in the through hole 1021, thereby achieving the purpose of preventing water splashing.

Optionally, the non-return assembly 2 is fastened on the water inlet 101 to prevent heated water vapor in the washing machine from leaking out through the water inlet 101. As shown in fig. 3 to 6, the reverse stopping assembly 2 includes a first reverse stopping body 21 and a switch structure 22, the first reverse stopping body 21 is connected to the tub cover 100 and is engaged with the water inlet 101, the first reverse stopping body 21 is provided with a water outlet 210, the switch structure 22 is rotatably provided on the first reverse stopping body 21 or the tub cover 100, and the switch structure 22 is configured to selectively open or close the water outlet 210.

The switch structure 22 can be rotatably disposed on the first non-return main body 21 and can also be rotatably disposed on the outer barrel cover 100, in this embodiment, the switch structure 22 is rotatably disposed on the first non-return main body 21, and the switch structure is simple in structure and convenient to install.

Specifically, one side of the first non-return main body 21 is provided with a water outlet 210, the switch structure 22 is connected with an installation shaft, the installation shaft is rotatably arranged at the top of the water outlet 210 of the first non-return main body 21, the switch structure 22 can block the water outlet 210 under the action of gravity, when water is fed into the washing machine, the switch structure 22 is rotated around the installation shaft by the acting force of the water, the first non-return main body 21 is communicated with the inside of the washing machine, and the water enters the inside of the washing machine. After the water is completely fed, the acting force of the water flow on the switch structure 22 disappears, and the switch structure 22 returns to the position where the water outlet 210 is buckled again, so that the heated water vapor is prevented from leaking.

Further, in order to improve the sealing effect on the water inlet 101, the non-return assembly 2 further includes a sealing rib 23, the sealing rib 23 is disposed on the inner wall of the outer barrel cover 100, the first non-return main body 21, the switch structure 22 and the sealing rib 23 are adapted to enclose a sealing space for fastening the water inlet 101, and the switch structure 22 can open or seal the sealing space.

Specifically, the first non-return main body 21 includes a bottom plate 211 and a flanging structure 212, the flanging structure 212 is disposed at the periphery of the bottom plate 211 and perpendicular to the bottom plate 211, and the bottom plate 211 guides water inflow. The flange structure 212 is provided with a gap, which is the water outlet 210, so that water can enter the washing machine conveniently. The bottom plate 211 is approximately a triangular structure, the flanging structures 212 are respectively arranged on two sides of the triangle, the third side is the water outlet 210, and the arrangement of the flanging structures 212 can also block the water inlet to enable the water to be discharged from the water outlet 210. The position of third edge sets up switch structure 22, and switch structure 22's both sides are provided with the installation axle respectively, and two side tops all are provided with the mounting groove, and the installation axle is installed in the mounting groove that corresponds to make the installation axle can be at the mounting groove internal rotation, thereby make switch structure 22 selectivity open or close.

Sealed flange 23 includes continuous first flange 231 and second flange 232, first flange 231 and second flange 232 all with flange structure 212's shape looks adaptation, all be provided with the interface on first flange 231 and the second flange 232, flange structure 212 pegs graft respectively in first flange 231 and second flange 232's socket, the reinforcing is to the sealed effect of inlet opening 101, prevents that the steam of heating from leaking through inlet opening 101.

The first non-return body 21 is not limited to the above-described shape structure, but may be a structure of other shapes as long as it can be engaged with the water inlet hole 101 and facilitate the installation of the switch assembly.

In order to improve the sealing of the switch structure 22 to the water outlet 210, a torsion spring can be sleeved on the mounting shaft, one end of the torsion spring is connected with the mounting shaft, the other end of the torsion spring is connected with the inner wall of the mounting groove, the torsion spring is arranged to provide restoring force for the switch structure 22, and the lower end of the switch structure 22 can be abutted against the first check main body 21. The maximum torque of the torsion spring is smaller than the acting force of water flow, and smooth water inlet can be guaranteed.

Optionally, a magnetic attraction structure may be further disposed on the switch structure 22 and the first non-return main body 21 to improve the sealing effect of the switch structure 22 on the water outlet 210, and the attraction force of the magnetic attraction structure is smaller than the acting force of the water flow. The present embodiment is not limited to the above sealing manner, and other sealing manners may be adopted as long as the sealing between the switch structure 22 and the water outlet 210 of the first non-return main body 21 can be improved.

In order to facilitate the fixed installation of the first non-return main body 21, a first mounting post 213 is disposed on the bottom plate 211 of the first non-return main body 21, as shown in fig. 1, a first mounting hole is disposed in the first mounting post 213, correspondingly, a second mounting post 103 is disposed on the outer tub cover 100, a second mounting hole is disposed on the second mounting post 103, and the fixing member passes through the first mounting hole of the first mounting post 213 to be connected with the second mounting hole of the corresponding second mounting post 103, thereby connecting the first non-return main body 21 with the outer tub cover 100.

Alternatively, two first mounting posts 213 are disposed on the bottom plate 211, and correspondingly, two second mounting posts 103 are disposed on the tub cover 100, so that the first ratchet body 21 is more firmly connected.

Optionally, a filtering assembly (not shown) is disposed at the water outlet 210 of the non-return assembly 2 for filtering the inlet water to prevent impurities from entering the washing machine. The filter component can be a filter screen, a sponge and other structures, is not limited to the structures, and can also adopt other filter modes as long as the filter component can filter the inlet water.

In this embodiment, filtering component is the sponge, and the sponge is flexible, through establishing the sponge cover on first erection column 213, can fix a position the sponge, and the sponge is with low costs, easily fixed. The arrangement of the sponge can also prevent heated water vapor from entering the water inlet hole 101 from the water outlet 210.

Example two:

the present embodiment provides a water inlet non-return structure of a washing machine, which is different from the first embodiment in that the non-return assembly 2 has a different structure, as shown in fig. 7 and 8, the non-return assembly 2 has a first state of being engaged with the water inlet 101 and a second state of being disengaged from the water inlet 101, when the washing machine is supplied with water, the non-return assembly 2 is disengaged from the water inlet 101, so that the water inlet 101 is convenient for the washing machine to supply water into the washing machine; when the washing machine finishes water inlet, the non-return component 2 is buckled with the water inlet hole 101 again. The non-return assembly 2 in this embodiment includes a second non-return body 24, the second non-return body 24 is configured to have a first state of being fastened to the water inlet hole 101, and a second state of the second non-return body 24 being separated from the water inlet hole 101, when water needs to be supplied into the washing machine, the second non-return body 24 is separated from the water inlet hole 101 to facilitate water supply; when water is not required to be supplied into the washing machine, the second non-return main body 24 is engaged with the water inlet hole 101 to prevent the heated water vapor from leaking.

Specifically, the middle portion of the second non-return body 24 is rotatably connected to the tub cover 100, both ends of the second non-return body 24 are respectively provided with a non-return cover 25 and a weight structure 26, the non-return cover 25 is configured to be capable of being fastened to the water inlet hole 101, and the weight structure 26 is configured to be capable of restoring the second non-return body 24 separated from the water inlet hole 101. The second non-return main body 24 with the structure can be switched between the first state and the second state in a rotating mode, and is simple in structure and convenient to operate.

The first state is the initial state of the second non-return main body 24, the counterweight structure 26 is heavier than the non-return cover 25, and when the washing machine does not feed water, the second non-return main body 24 is buckled on the water inlet hole 101; when the washing machine is supplied with water, the water flow gives a downward acting force to the check cover 25 to rotate the second check body 24, and one end of the second check body 24, at which the check cover 25 is disposed, moves downward, so that the check cover 25 is separated from the water inlet hole 101 to facilitate water intake; after the water is completely fed, since the check cover 25 is not subjected to the downward force any more, since the weight of the weight structure 26 is greater than that of the check cover 25, the second check body 24 rotates in the reverse direction, and the second check body 24 returns to the initial state.

Further, the non-return assembly 2 further includes two mounting bases, the two mounting bases are disposed on the outer barrel cover 100, mounting holes are formed in the mounting bases, the mounting holes of the two mounting bases are oppositely disposed, rotating shafts 241 are disposed on two sides of the second non-return main body 24, and the rotating shafts 241 are correspondingly mounted in the mounting holes and can rotate in the mounting holes. The second backstop body 24 is rotatably matched with the outer barrel cover 100 through the matching of the mounting base and the rotating shaft 241, and the structure is simple and easy to realize.

As shown in fig. 8, the non-return cover 25 is a cover structure facing the inner wall of the outer tub cover 100, the non-return cover 25 can be fastened to the step structure 102, and the non-return cover 25 abuts against the outer tub cover 100. In order to enhance the sealing effect of the engagement, the cover structure engages with the second step 1023 of the step structure 102 and abuts against the end surface of the first step 1022, thereby forming a sealing structure and tightly sealing the water inlet 101. The non-return cover 25 is structurally matched with the step structure 102.

Specifically, the cross-sectional shape of the step structure 102 is a ring shape, the inner diameter of the check cover 25 is greater than the outer diameter of the second step 1023, the outer diameter of the check cover 25 is less than the outer diameter of the first step 1022, and the height of the check cover 25 is greater than or equal to the height of the second step 1023, so that the check cover 25 is buckled on the second step 1023 and the end surfaces of the first step 1022 are abutted.

The counterweight structure 26 has a structure with a certain weight, and the material and structure are not limited as long as the second non-return main body 24 can be reset.

Optionally, backstop subassembly 2 can adopt the integrated into one piece of moulding plastics, simple structure, and the preparation is convenient.

Example three:

the present embodiment provides a water inlet non-return structure of a washing machine, which is different from the first and second embodiments in that the non-return assembly 2 is engaged with the water inlet 101, and the non-return assembly 2 of the present embodiment includes a third non-return body configured to be able to approach or separate from the water inlet 101 along the axial direction of the water inlet 101 to engage or disengage with the water inlet 101.

Specifically, the third non-return main body can be movably disposed on the outer tub cover 100 along the height direction of the outer tub, specifically, a fixing seat is disposed on the outer tub cover 100, a sliding groove is disposed on the fixing seat, the sliding groove extends along the height direction of the outer tub, and a sliding connection portion is disposed on the third non-return main body, extends into the sliding groove, and can move along the length direction of the sliding groove. The sliding groove is also used for limiting the moving distance of the third backstop body.

Backstop subassembly 2 still includes the piece that resets, and optionally, the piece that resets adopts the spring, and the spring setting is in the spout, and the one end of spring links to each other with the bottom of spout, and the other end links to each other with sliding connection portion, and the setting of spring provides drive power for the restoration of third backstop main part. When water is fed into the washing machine, the acting force of the water flow is greater than the elastic force of the spring, and the third non-return main body moves downwards along the sliding groove; when water inflow is finished, the acting force of water flow disappears, and the third non-return main body is reset under the driving force of the spring.

Preferably, in order to make the third non-return body move smoothly, a plurality of sliding grooves and a sliding connection part may be used in cooperation so that the third non-return body can stably operate during the movement.

The third non-return main body is not limited to the above structure, and may be moved along the axial direction of the water inlet 101, and other structures may be adopted, for example, the driving mechanism drives the third non-return main body to move, so long as the third non-return main body is close to or away from the water inlet 101 along the axial direction of the water inlet 101 to be engaged with or disengaged from the water inlet 101.

Example four:

the invention also provides a washing machine, which comprises the water inlet non-return structure of the washing machine in the first embodiment, the second embodiment or the third embodiment. The washing machine is convenient to disassemble and assemble and low in maintenance cost; the heated water vapor can be prevented from leaking out.

Optionally, the washing machine is a top-open type washing machine with a heating function, and heated water vapor can be prevented from leaking out through a water inlet non-return structure of the washing machine, so that a user is prevented from being scalded.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A washing machine water inflow non-return structure is characterized by comprising:

one end of the water guide pipe (1) is connected with the washing machine disc seat, and the other end of the water guide pipe is in plug fit with a water inlet hole (101) on an outer barrel cover (100) of the washing machine; and

a backstop assembly (2) disposed inside an outer tub of the washing machine, the backstop assembly (2) being configured to be capable of selectively blocking the water inlet hole (101).

2. The water inlet non-return structure of washing machine according to claim 1, characterized in that the non-return assembly (2) comprises:

the first non-return main body (21) is connected with the outer barrel cover (100) and buckled with the water inlet hole (101), and a water outlet (210) is formed in the first non-return main body (21);

a switch structure (22) rotatably provided on the first ratchet body (21) or the outer tub cover (100), the switch structure (22) being configured to selectively open or close the water outlet (210).

3. The water inlet non-return structure of the washing machine according to claim 2, characterized in that the non-return assembly (2) further comprises a sealing rib (23), the sealing rib (23) is arranged on the inner wall of the outer barrel cover (100), and the first non-return main body (21), the switch structure (22) and the sealing rib (23) are matched to enclose a sealing space for buckling the water inlet hole (101).

4. The water inlet non-return structure of washing machine according to claim 1, characterized in that the non-return assembly (2) selectively engages the water inlet (101), and the non-return assembly (2) has a first state engaging the water inlet (101) and a second state disengaging the water inlet (101).

5. The water inlet non-return structure of the washing machine according to claim 4, wherein the non-return assembly (2) comprises a second non-return body (24), the middle part of the second non-return body (24) is rotatably connected with the outer tub cover (100), two ends of the second non-return body (24) are respectively provided with a non-return cover (25) and a counterweight structure (26), the non-return cover (25) is configured to be capable of being fastened with the water inlet (101), and the counterweight structure (26) is configured to be capable of resetting the second non-return body (24) separated from the water inlet (101).

6. The water inlet non-return structure of the washing machine according to claim 5, characterized in that the non-return assembly (2) further comprises a mounting base, the mounting base is arranged on the outer barrel cover (100), the mounting base is provided with a mounting hole, two sides of the second non-return main body (24) are provided with rotating shafts (241), and the rotating shafts (241) are correspondingly arranged in the mounting hole and can rotate in the mounting hole.

7. The water inlet non-return structure of washing machine according to claim 4, wherein the non-return assembly (2) includes a third non-return body configured to be able to approach or separate from the water inlet hole (101) in an axial direction of the water inlet hole (101) to be engaged with or disengaged from the water inlet hole (101).

8. The water inlet non-return structure of the washing machine according to any one of claims 1 to 7, characterized in that a step structure (102) is provided on the inner wall of the outer tub cover (100) and at the position of the water inlet (101), a through hole (1021) is provided on the step structure (102), the through hole (1021) is communicated with the water inlet (101), and the non-return component (2) is fastened to the step structure (102).

9. The water inlet non-return structure of the washing machine according to claim 8, characterized in that the diameter of the water inlet hole (101) is larger than the diameter of the through hole (1021), one end of the water conduit (1) which is in plug fit with the water inlet hole (101) is provided with a water retaining structure (11), and the size of the water retaining structure (11) is matched with the inner diameter of the water inlet hole (101).

10. A washing machine characterized by comprising the washing machine water inflow non-return structure of any one of claims 1 to 9.

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