CN114737365A

CN114737365A - Protection device and washing machine

Info

Publication number: CN114737365A
Application number: CN202210366240.8A
Authority: CN
Inventors: 范艳芳; 赵波; 路梦娟
Original assignee: TCL Home Appliances Hefei Co Ltd
Current assignee: TCL Home Appliances Hefei Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-12

Abstract

The protection device comprises an air pipe, a flexible part and a shell, wherein the air pipe is a cylinder with two open ends, and one end of the air pipe is communicated with the inside of the washing machine and used for transmitting air; the flexible piece is abutted against and sealed at the other end of the air pipe; the casing is used for holding trachea and flexible member, has still seted up the gas vent on the casing. According to the protection device, when the air pressure in the air pipe does not reach an air pressure threshold value, the air pipe is sealed by the flexible piece; when the air pressure in the air pipe is greater than the air pressure threshold value, the flexible part is pressed to deform, so that the flexible part is separated from the air pipe, the air in the air pipe enters the shell and is discharged along the air outlet, the air pressure in the washing machine is reduced, and the problems of vibration and abnormal sound of the washing machine are avoided. The present application further provides a washing machine.

Description

Protection device and washing machine

Technical Field

The application belongs to the technical field of washing machines, and particularly relates to a protection device and a washing machine.

Background

Traditional washing machine is when the operation, and interior bucket can be high-speed rotatory, because the structure that interior bucket of washing machine and outer bucket are sealed relatively, consequently along with the increase of the interior bucket rotational speed of washing machine, can lead to the atmospheric pressure distribution difference of the interior bucket of washing machine great, makes washing machine great vibrations and abnormal sound appear easily, has influenced the use and the user experience of complete machine.

Disclosure of Invention

The embodiment of the application provides a protection device and a washing machine, and aims to solve the problems that vibration and abnormal sound easily occur to the washing machine.

In a first aspect, an embodiment of the present application provides a protection device, including:

the air pipe is a cylinder body with two open ends, and one end of the air pipe is communicated with the inside of the washing machine and is used for transmitting air;

the flexible piece is abutted against and sealed at the other end of the air pipe;

the shell is used for accommodating the air pipe and the flexible piece, and an air outlet is formed in the shell;

when the air pressure in the air pipe is larger than an air pressure threshold value, the flexible part deforms, so that the flexible part is separated from the air pipe, the air in the air pipe enters the shell and is discharged along the air outlet, and the air pressure in the washing machine is reduced.

Optionally, the flexible member is of a hollow structure, the flexible member includes a supporting portion, a connecting portion and a fixing portion, the supporting portion is supported against the air pipe, the fixing portion is fixed to and hermetically connected with the casing, the connecting portion is used for connecting the supporting portion with the fixing portion, and the diameter of the supporting portion is smaller than that of the fixing portion.

Optionally, the casing includes first casing and closing cap, first casing has first accommodation space, first accommodation space is used for holding the trachea with the flexible piece, first casing includes relative first end and the second end that sets up, the second end is equipped with the opening, the trachea is worn to establish first end, the closing cap with the opening sealing connection of second end, the closing cap with the flexible piece fixed connection of fixed part.

Optionally, the protection device further includes a first shaft body, the first shaft body is disposed through the fixing portion, and one end of the first shaft body is disposed in the flexible member and connected to the abutting portion;

the first shaft body is made of thermosensitive materials, and when the temperature of gas in the flexible part is higher than a temperature threshold value, the first shaft body is shortened so that the flexible part is deformed.

the shell further comprises a second shell, the second shell is provided with a second accommodating space and used for accommodating one end, far away from the flexible part, of the first shaft body, and the second shell is fixedly connected with the sealing cover;

the protection device further comprises a resetting structure, the resetting structure is arranged in the second accommodating space and is fixedly connected with one end, far away from the flexible piece, of the first shaft body, and when the pressure of gas in the air pipe is smaller than the air pressure threshold value, the resetting structure can enable the first shaft body to move towards one end, close to the air pipe, of the first shaft body, so that the flexible piece can close the air pipe again.

Optionally, the reset structure includes:

the first limiting piece is accommodated in the second accommodating space and is arranged at an interval with the first shaft body, and the first limiting piece is fixedly connected with the second shell;

the limiting piece is fixed at one end, far away from the flexible piece, of the first shaft body;

the two ends of the spring are respectively connected with the limiting sheet and the first limiting piece;

when the gas pressure in the gas pipe is greater than the gas pressure threshold value, the flexible part deforms and is separated from the gas pipe, so that the first shaft body moves towards one side far away from the gas pipe and compresses the spring, and when the gas pressure in the gas pipe is less than the gas pressure threshold value, the spring pushes the first shaft body to move towards one end close to the gas pipe so as to close the gas pipe again.

Optionally, the protection device further includes a limiting structure located in the second housing;

the first shaft body is made of thermosensitive materials and comprises an initial state and a heated state;

when the temperature of the gas in the gas pipe is not higher than the temperature threshold value, the first shaft body is in the initial state, the first shaft body is fixedly connected with the abutting part, and the abutting part is sealed in the gas pipe;

when the temperature of the gas in the gas pipe is higher than a temperature threshold value, the first shaft body is heated and shortened, and the limiting structure is used for limiting the first shaft body to be far away from the movement of one end of the flexible part, so that the flexible part deforms towards one side far away from the gas pipe, and the abutting portion is separated from the gas pipe.

Optionally, the limiting structure includes:

the second shaft body is positioned in the second accommodating space, the second shaft body is connected with the first limiting piece in a sliding mode, and one end of the second shaft body is connected to one end, far away from the abutting portion, of the first shaft body;

the second limiting part is positioned on one side, far away from the first shell, of the first limiting part and is fixedly connected with the second shaft body, and the sectional area of the second limiting part is larger than that of the second shaft body;

when the first shaft body is shortened, the second limiting part is limited by the first limiting part, so that the first shaft body drives the flexible part to deform towards one side far away from the air pipe.

In a second aspect, embodiments of the present application further provide a washing machine, including

An inner barrel;

the air duct is used for conveying and communicated with the inner barrel;

the protection device of any preceding claim, wherein one end of the air tube is in communication with the air channel.

Optionally, the washing machine further includes:

the hot air blower is communicated with the air duct and can output hot air so as to improve the temperature of the air in the air duct;

a temperature sensor located within the protective device, the temperature sensor being operable to detect a temperature of the gas within the trachea;

the main control board is connected with the temperature sensor and the air heater, and when the temperature sensor detects that the temperature of the gas in the gas pipe exceeds a preset temperature value, the main control board controls the air heater to stop working.

The embodiment of the application provides protection device and washing machine, including trachea, flexible piece and casing, the trachea is used for transmitting gas, and the trachea is both ends open-ended barrel, tracheal one end and washing machine's inside intercommunication to be used for transmitting gas, be used for holding trachea and flexible piece, still seted up the gas vent on the casing. The flexible piece is abutted against and sealed at the other end of the air pipe, and when the air pressure in the air pipe does not reach an air pressure threshold value, the air pipe is sealed by the flexible piece; when atmospheric pressure in the trachea is greater than the atmospheric pressure threshold value, the flexible part receives the oppression and produces the deformation, so that the flexible part with the trachea separation, and make the gas in the trachea gets into inside the casing, and follow the gas vent is discharged, in order to reduce the inside atmospheric pressure of washing machine avoids washing machine vibrations and abnormal sound problem to appear.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.

Fig. 1 is a first structural schematic diagram of a protection device according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a first structure of a flexible member of a protection device according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a second protection device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a third protection device according to an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of the protective device shown in FIG. 4;

FIG. 6 is a second structural schematic diagram of a flexible member of the protection device according to the embodiment of the present application;

fig. 7 is a schematic diagram of a fourth structure of a protection device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a fifth protection device according to an embodiment of the present application;

fig. 9 is a first structural schematic diagram of a washing machine according to an embodiment of the present application;

fig. 10 is a schematic view of a second structure of a washing machine according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, 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 application.

Therefore, the embodiment of the application provides a protection device and a washing machine, so as to solve the problem that the washing machine is easy to vibrate and make abnormal sound. The following description will be made with reference to the accompanying drawings.

Illustratively, the present embodiment provides a protection device 100, which is suitable for a washing machine. When the washing machine is operated and high pressure is generated inside the washing machine, the protection device 100 can effectively discharge gas inside the washing machine to reduce the pressure inside the washing machine and prevent the washing machine from generating vibration and abnormal noise. Referring to fig. 1, fig. 1 is a schematic view illustrating a first structure of a protection device 100 according to an embodiment of the present disclosure. In this embodiment, the protection device 100 includes an air pipe 20, a flexible member 30 and a housing, the air pipe 20 is a cylinder with two open ends, and one end of the air pipe 20 is communicated with the inside of the washing machine for transmitting air in the washing machine; the flexible member 30 abuts against and is sealed at the other end of the air tube 20, and the flexible member 30 deforms when the air pressure inside the air tube 20 is greater than an air pressure threshold value; the housing is used for accommodating the air tube 20 and the flexible member 30, and an air outlet 115 is further provided on the housing.

Specifically, referring to fig. 2, fig. 2 is a schematic view illustrating a first structure of a flexible member 30 of a protection device 100 according to an embodiment of the present disclosure. The flexible piece 30 is of a hollow structure, the flexible piece 30 comprises an abutting portion 31, a connecting portion 32 and a fixing portion 33, the abutting portion 31, the connecting portion 32 and the fixing portion 33 are all arranged in a hollow mode, the abutting portion 31 abuts against the air pipe 20, one end of the abutting portion 20 can seal the air pipe 20 when abutting against the air pipe 20, and when the air pressure in the air pipe 20 does not reach an air pressure threshold value, the abutting portion 31 seals one end of the air pipe 20; the fixing part 33 is fixed and hermetically connected with the shell; the connecting portion 32 connects the abutting portion 31 and the fixing portion 33. In this embodiment, the diameter of the abutting portion 31 is smaller than that of the fixing portion 33, so that when the flexible member 30 is deformed by air pressure, the abutting portion 31, the connecting portion 32 and the fixing portion 33 are hollow, so that the abutting portion 31 can be deformed toward a side away from the air tube 20, and a part of the abutting portion 31 is recessed into the fixing portion 33. In this embodiment, the flexible member 30 has elasticity, and when the gas in the gas tube 20 is exhausted by a certain amount, the internal gas pressure of the gas tube 20 is reduced to a state lower than the gas pressure threshold value, so that the abutting portion 31 is deformed toward the side close to the gas tube 20, and the portion recessed into the fixing portion 33 is reset again.

In this embodiment, when the air pressure in the air tube 20 does not reach the air pressure threshold, the abutting portion 31 of the flexible member 30 abuts against one end of the air tube 20, and seals the air tube 20, so as to prevent the air in the air tube 20 from leaking.

When the air pressure in the air pipe 20 is greater than the air pressure threshold value, the air pressure presses the flexible part 30, a force far away from the direction of the air pipe 20 is generated on the flexible part 30, the flexible part 30 is pushed by air towards one side far away from the air pipe 20, the abutting part 31 part of the flexible part 30 is sunken into the fixing part 33, the flexible part 30 is separated from the air pipe 20, so that the air can enter the first accommodating space 111 and is discharged along the air outlet 115, the air pressure in the air pipe 20 is reduced, the effect of balancing the air pressure in the washing machine is achieved, and the vibration and abnormal sound are avoided.

In this embodiment, the flexible member 30 may be made of silica gel, rubber, or rubber-plastic foam, and has elasticity, easy deformation, and good high temperature resistance. In addition, a certain distance is arranged between the flexible member 30 and the inner wall of the housing, so that gas can enter the first accommodating space 111 along the gas pipe 20, and meanwhile, when the flexible member 30 is deformed by high pressure of the gas, the fixing portion 33 of the flexible member 30 may be pressed toward the direction close to the inner wall of the housing, so that the flexible member 30 is also conveniently deformed by the distance between the flexible member 30 and the inner wall of the housing.

For example, please refer to fig. 1 and 2. In one embodiment, the housing includes a first housing 11 and a cover 12, the first housing 11 has a first accommodating space 111, the air tube 20 and the flexible member 30 are both located in the first accommodating space 111, the first housing 11 includes a first end and a second end that are oppositely disposed, the second end is provided with an opening, the air tube 20 penetrates through the first end, the cover 12 is hermetically connected to the opening of the second end, and the cover 12 is fixedly connected to the fixing portion 33 of the flexible member 30. When the air pressure in the air pipe 20 is greater than the air pressure threshold value, the flexible part 30 deforms and is separated from the air pipe 20, so that the air pipe 20 is communicated with the first accommodating space 111, and after the air in the air pipe 20 enters the first accommodating space 111, the air is discharged from the air outlet 115, so that the effect of balancing the air pressure in the washing machine is achieved, and the vibration and abnormal sound are avoided.

Most of washing machines are washing and drying integrated machines at present, that is, washing and drying functions are provided, but when clothes are dried, the temperature may be too high due to insufficient temperature control, so that the clothes are deformed at high temperature or fire is caught, and in order to avoid such situations, for example, please refer to fig. 3 to 8, and fig. 3 is a second structural schematic diagram of the protection device 100 provided in the embodiment of the present application; fig. 4 is a schematic diagram of a third structure of the protection device 100 according to the embodiment of the present application; fig. 5 is a cross-sectional view of the protection device 100 shown in fig. 4; fig. 6 is a schematic diagram of a second structure of the flexible member 30 of the protection device 100 according to the embodiment of the present application; fig. 7 is a fourth structural schematic diagram of the protection device 100 according to the embodiment of the present application;

fig. 8 is a schematic diagram of a fifth structure of the protection device 100 according to the embodiment of the present application. In one embodiment, the protection device 100 can exhaust hot air from the washing machine when the temperature inside the washing machine reaches a temperature threshold value, so as to avoid an over-temperature condition. Specifically, the protection device 100 further includes a first shaft 40, the first shaft 40 is partially located in the first accommodating space 111, one end of the first shaft 40 is fixedly connected to the abutting portion 31 of the flexible member 30, and the first shaft 40 further penetrates through the fixing portion 33.

The first shaft 40 is made of a heat-sensitive material and has a thermal shrinkage and cold expansion characteristic, specifically, when the washing machine starts a drying process, the internal temperature of the washing machine rises, and after heat is transmitted to the flexible member 30 through the air pipe 20, the heat is transmitted to the first shaft 40 through the flexible member 30, and when the temperature of the first shaft 40 rises due to heating, and reaches a temperature threshold value that can generate expansion, the first shaft 40 shortens, and because the first shaft 40 is fixedly connected with the abutting portion 31 of the flexible member 30, the first shaft 40 shortens and can drive the flexible member 30 to deform towards the end away from the air pipe 20, so that the abutting portion 31 moves towards the side away from the air pipe 20, and the air pipe 20 and the flexible member 30 are separated, so that high-temperature gas can enter the first accommodating space 111 from the air pipe 20 and then be discharged along the exhaust port 115, and the risk of clothes deformation or fire caused by overhigh temperature is avoided.

Specifically, referring to fig. 5 and fig. 6, the first shaft 40 is connected to the flexible element 30 in a clamping manner, but not in an adhesive manner, if the adhesive connection may cause that the glue between the flexible element 30 and the first shaft 40 is heated to melt or decompose in a high temperature state, which causes the first shaft 40 and the flexible element 30 to be poorly connected or separated, and the effect that the first shaft 40 drives the flexible element 30 to move cannot be achieved. It is understood that the first shaft 40 can be fixed to the flexible member 30 by other structures such as a fixing member, for example, a screw is screwed into the end of the abutting portion 31 near the air tube 20, passes through the flexible member 30, and is partly screwed into the first shaft 40 to fixedly connect the flexible member 30 and the first shaft 40.

After the gas in the gas pipe 20 is discharged from the gas outlet 115, the internal gas pressure is reduced to below the gas pressure threshold, and the flexible part 30 is restored to the state of abutting against the gas pipe 20 by its own elasticity, but because the flexible part 30 may not be completely restored to the state of closing the gas pipe 20 due to long-term deformation, air leakage and other situations may occur, and in order to avoid this situation, for example, in this embodiment, the protection device 100 further includes a reset structure, and the reset structure can assist the flexible part 30 to be restored to the state of closing the gas pipe 20 after the gas pressure in the gas pipe 20 is reduced to the gas pressure threshold. Specifically, in the present embodiment, the protection device 100 includes a first shaft 40, the first shaft 40 is disposed through the fixing portion 33, and one end of the first shaft 40 is disposed in the flexible member 30 and connected to the abutting portion 31; the housing further comprises a second housing 13, the second housing 13 has a second accommodating space 131 for accommodating one end of the first shaft 40 away from the flexible member 30, and the second housing 13 is fixedly connected with the cover 12; the protection device 100 further includes a reset structure, which is located in the second accommodating space 131 and is fixedly connected to an end of the first shaft 40 away from the flexible member 30, and when the pressure of the gas in the gas tube 20 is less than the threshold value of the gas pressure, the reset structure can move the first shaft 40 toward an end close to the gas tube 20, so that the flexible member 30 can close the gas tube 20 again.

Referring to fig. 4 and 5, in the present embodiment, the first shaft 40 penetrates through the sealing cover 12, the restoring structure includes a first limiting member 61, a limiting sheet 51 and a spring 52, the first limiting member 61 is accommodated in the second space and spaced apart from the first shaft 40, and the first limiting member 61 is further fixedly connected to the second housing 13; the limiting sheet 51 is located on one side of the cover 12 away from the first housing 11 and fixed at one end of the first shaft 40 away from the flexible member 30; the spring 52 has two ends respectively connected to the limiting plate 51 and the first limiting member 61.

When the gas pressure in the gas pipe 20 is greater than the gas pressure threshold, the flexible member 30 is pressed by the gas to deform and separate from the gas pipe 20, so that the first shaft 40 moves towards the side away from the gas pipe 20, the limiting piece 51 connected with the first shaft 40 also moves towards the side away from the gas pipe 20, the distance between the limiting piece 51 and the first limiting member 61 is shortened, and the spring 52 is compressed. The pressure in the air tube 20 is reduced as the air is discharged from the air outlet 115 until the pressure of the air in the air tube 20 is less than the air pressure threshold, and the spring 52 begins to rebound due to the elastic potential energy generated by being compressed, and pushes the abutting part 31 of the flexible member 30 to move toward the side close to the air tube 20, so as to close the air tube 20 again.

In this embodiment, the cover 12 includes a first tray 121, a sleeve 122 and a second tray 123, the first tray 121 and the second tray 123 are disposed at intervals, and the sleeve 122 is disposed between the first tray 121 and the second tray 123 and connects the first tray 121 and the second tray 123. The first disc 121 closes the opening at the second end of the first housing 11, the sleeve 122 is slidably connected to the first shaft 40, and the second disc 123 is fixedly connected to the second housing 13 and can be used to abut against the limiting plate 51. It is understood that the cover 12 may only include a disk body, which is sleeved on the first shaft 40 and has two ends connected to the first housing 11 and the second housing 13, respectively.

Further, in response to the high temperature that may occur during the drying of the clothes in the washing and drying machine, in an embodiment, the protection device 100 may discharge the gas automatically under high pressure to reduce the pressure, or discharge the gas automatically at high temperature to avoid the over-high temperature. In an exemplary embodiment, the protection device 100 further includes a limiting structure located in the second housing 13, the limiting structure is configured to limit movement of the first shaft 40 away from the end of the flexible member 30, the first shaft 40 is made of a heat-sensitive material and has a heat-shrinkage and cold-expansion characteristic, and the first shaft 40 includes an initial state and a heated state.

When the temperature of the gas in the gas pipe 20 is not higher than the temperature threshold, the first shaft 40 is in an initial state, the first shaft 40 is fixedly connected with the abutting portion 31, and the abutting portion 31 is sealed in the gas pipe 20.

When the gas temperature in trachea 20 is higher than the temperature threshold, first axis body 40 is heated and shortens to keep away from the removal of flexible piece 30 one end through limit structure restriction first axis body 40, make first axis body 40 only shorten towards the one side of keeping away from flexible piece 30, in order to drive flexible piece 30 towards the one side deformation of keeping away from trachea 20, make to support and lean on portion 31 and trachea 20 separation, thereby make gas can get into first accommodation space 111, discharge from gas vent 115 then.

Specifically, in the present embodiment, the limiting structure includes a second shaft 60 and a second limiting member 62, the second shaft 60 is located in the second accommodating space 131, passes through the first limiting member 61, and is slidably connected to the first limiting member 61, and one end of the second shaft 60 is connected to one end of the first shaft 40 far away from the abutting portion 31, so that the second shaft 60 can move synchronously with the first shaft 40.

The second position-limiting member 62 is located on a side of the first position-limiting member 61 away from the first housing 11 and is fixedly connected to the second shaft 60, a sectional area of the second position-limiting member 62 is larger than a sectional area of the second shaft 60, the second position-limiting member 62 can abut against the first position-limiting member 61, and when the second shaft 60 is subjected to a force moving toward one end close to the flexible member 30, because the first position-limiting member 61 is fixed in the second housing 13, the second position-limiting member 62 abuts against the first position-limiting member 61 and is limited by the first position-limiting member 61 and cannot move toward one end close to the flexible member 30, thereby limiting the second shaft 60 from moving toward one end close to the flexible member 30.

When the first shaft body 40 is in the heated state and shortens, because the second shaft body 60 is connected with the first shaft body 40, and the second shaft body 60 abuts against the first limiting part 61 through the second limiting part 62, therefore, only the end away from the flexible part 30 can be shortened, so that the first shaft body 40 drives the flexible part 30 to deform towards the side away from the air pipe 20, thereby avoiding the situation that the first shaft body 40 shortens towards the end close to the flexible part 30 and cannot drive the flexible part 30 to deform.

In this embodiment, an end of the second shaft 60 away from the first shaft 40 is spaced apart from the second housing 13, so that the second shaft 60 can move towards the end away from the flexible member 30, and when the pressure of the gas in the gas pipe 20 is greater than the pressure threshold, both the first shaft 40 and the second shaft 60 can move towards the end away from the flexible member 30 without being interfered by the second housing 13.

Referring to fig. 9 and 10, fig. 9 is a first structural schematic diagram of a washing machine according to an embodiment of the present application; fig. 10 is a schematic view of a second structure of a washing machine according to an embodiment of the present application. In an exemplary embodiment, the present embodiment further provides a washing machine 200, which includes an inner tub (not shown) for containing laundry, an air duct 1001 for transmitting air and communicating with the inner tub, and the above-mentioned protection device 100, wherein the protection device 100 is disposed on the air duct 1001, and the air pipe 20 communicates with the air duct 1001. When the air pressure in the air duct 1001 is greater than the air pressure threshold, the air can be discharged through the protection device 100 to reduce the air pressure in the air duct 1001 and the inner barrel, and avoid vibration and abnormal sound.

For example, the washing machine 200 provided in this embodiment further includes a hot air blower 1002, the hot air blower 1002 can output hot air and is communicated with the air duct 1001, so as to raise the temperature of the air in the air duct 1001 by the hot air blower 1002, thereby achieving the effect of drying the laundry.

In order to further ensure the safety of the washing machine 200 during drying the laundry, in this embodiment, the washing machine 200 further includes a temperature sensor (not shown) and a main control board (not shown), the temperature sensor is disposed in the protection device 100, and particularly, may be disposed in the air pipe 20, and the temperature sensor may detect the temperature of the air in the air pipe 20. The main control board then is connected with temperature sensor and air heater 1002, and temperature sensor transmits the gas temperature that detects to the main control board, and when the gas temperature numerical value that the main control board received exceeded preset temperature value, the stop work of main control board control air heater 1002 avoided the high temperature to lead to the clothing to warp or catch fire scheduling danger.

It is understood that the temperature sensor may be disposed at the inner tub, the air duct 1001, the door, etc. of the washing machine 200, as long as the temperature of the air in the tub can be accurately detected.

The protection device 100 and the washing machine 200 provided by the embodiment of the application comprise an air pipe 20, a flexible part 30 and a shell, wherein the air pipe 20 is used for transmitting air, the air pipe 20 is a cylinder body with two open ends, one end of the air pipe 20 is communicated with the inside of the washing machine 200 and is used for transmitting air, the air pipe 20 and the flexible part 30 are contained, and the shell is further provided with an air outlet 115. The flexible piece 30 abuts against and is sealed at the other end of the air pipe 20, and when the air pressure in the air pipe 20 does not reach the air pressure threshold value, the air pipe 20 is sealed by the flexible piece 30; when the air pressure in the air pipe 20 is greater than the air pressure threshold value, the flexible part 30 is pressed to deform, so that the flexible part 30 is separated from the air pipe 20, the air in the air pipe 20 enters the inside of the shell and is exhausted along the air outlet 115, the air pressure in the washing machine 200 is reduced, and the problems of vibration and abnormal sound of the washing machine 200 are avoided. The protection device 100 further comprises a first shaft body 40, the first shaft body 40 penetrates through the fixing portion 33 of the flexible member 30, one end of the first shaft body 40 is arranged in the flexible member 30 and connected with the abutting portion 31, the first shaft body 40 is made of a heat-sensitive material and has the characteristics of heat shrinkage and cold expansion, the temperature in the air pipe 20 can be transmitted to the first shaft body 40 through the flexible member 30, when the temperature sensed by the first shaft body 40 is higher than a temperature threshold value, the first shaft body 40 is shortened to enable the flexible member 30 to deform and separate from the air pipe 20, so that high-temperature gas is discharged, and the danger that clothes deform or fire is caused by overhigh temperature is avoided. Protection device 100 still includes limit structure, limit structure is located protection device 100's second casing 13, limit structure is used for restricting the first axis body 40 and keeps away from the removal of flexible piece 30 one end, when guaranteeing that first axis body 40 is heated and shortens, can shorten towards the one end of keeping away from trachea 20, so that flexible piece 30 deformation and with the separation of trachea 20, avoided first axis body 40 to shorten towards the one end that is close to flexible piece 30, the condition that can't drive flexible piece 30 deformation appears. The protection device 100 further comprises a resetting structure, the flexible part 30 deforms due to the pressure of the gas in the gas pipe 20, after the gas in the gas pipe 20 is exhausted through the exhaust port 115, the internal gas pressure of the gas pipe 20 is reduced to be lower than a gas pressure threshold value, the resetting structure can assist the flexible part 30 to recover to a state of abutting against the gas pipe 20, and the problem of air leakage caused by the fact that the flexible part 30 cannot completely recover to a state of closing the gas pipe 20 due to long-time deformation is solved.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

The protection device and the washing machine provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are explained herein by applying specific examples, and the description of the above embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A protection device, suitable for a washing machine, characterized by comprising:

2. The protection device according to claim 1, wherein the flexible member is a hollow structure, the flexible member includes an abutting portion abutting against the air tube, a connecting portion and a fixing portion, the fixing portion is fixedly and hermetically connected with the housing, the connecting portion is used for connecting the abutting portion and the fixing portion, and the abutting portion has a diameter smaller than that of the fixing portion.

3. The protection device of claim 2, wherein the housing comprises a first housing and a cover, the first housing has a first receiving space for receiving the air tube and the flexible member, the first housing comprises a first end and a second end opposite to each other, the second end is provided with an opening, the air tube penetrates through the first end, the cover is connected with the opening of the second end in a sealing manner, and the cover is fixedly connected with the fixing portion of the flexible member.

4. The protection device according to claim 3, further comprising a first shaft body, wherein the first shaft body is disposed through the fixing portion, and one end of the first shaft body is disposed in the flexible member and connected to the abutting portion;

5. The protection device according to claim 3, further comprising a first shaft body, wherein the first shaft body is disposed through the fixing portion, and one end of the first shaft body is disposed in the flexible member and connected to the abutting portion;

6. The protective device of claim 5, wherein the reset structure comprises:

when the gas pressure in the gas pipe is greater than the gas pressure threshold value, the flexible piece deforms and is separated from the gas pipe, so that the first shaft body moves towards one side far away from the gas pipe and compresses the spring, and when the gas pressure in the gas pipe is less than the gas pressure threshold value, the spring pushes the first shaft body to move towards one end close to the gas pipe so as to close the gas pipe again.

7. The protective device of claim 6, further comprising a limiting structure located within the second housing;

when the gas temperature in the trachea is higher than the temperature threshold value, the first shaft body is heated and shortened, and the limiting structure is used for limiting the first shaft body to be away from the movement of one end of the flexible part, so that the flexible part deforms towards one side away from the trachea, and the abutting part is separated from the trachea.

8. The protective device of claim 7, wherein the limit structure comprises:

9. A washing machine, characterized by comprising:

an inner barrel;

the air duct is used for conveying air and communicated with the inner barrel;

the protective device according to claims 1-8, wherein one end of the air tube is in communication with the air channel.

10. The washing machine as claimed in claim 9, further comprising:

the hot air blower is communicated with the air duct and can output hot air so as to raise the temperature of the air in the air duct;