CN107142687B - Water level sensing device of washing machine and washing machine with same - Google Patents

Abstract

The invention discloses a water level sensing device of a washing machine and the washing machine with the same, the water level sensing device of the washing machine comprises: the water level sensor and the air chamber guide tube, the air chamber guide tube includes first pipeline section and second pipeline section, and first pipeline section is suitable for being connected to the back outer bucket of washing machine in order to hold gas and water, and second pipeline section holds gas and is connected to the water level sensor, and the internal diameter of second pipeline section is less than the internal diameter of first pipeline section, first pipeline section and second pipeline section integrated into one piece. According to the water level sensing device of the washing machine, the air chamber guide pipe is provided with the first pipe section and the second pipe section with different inner diameters, and the inner diameter of the second pipe section is smaller than that of the first pipe section, so that under the condition that the water level changes in the rear outer barrel of the washing machine are the same, the pressure changes in the second pipe section are more sensitive, the detection reliability is further improved, and the first pipe section and the second pipe section are integrally formed, so that the structure can be simplified, and the reliability of a connecting position is improved.

Description

Water level sensing device of washing machine and washing machine with same

Technical Field

The invention relates to the technical field of washing machines, in particular to a water level sensing device of a washing machine and the washing machine with the same.

Background

The water level sensing apparatus 700 of the related art washing machine generally adopts a split type structure of a combination of plastic pipes and rubber pipes, as shown in fig. 1, and includes a first rubber pipe 710, a plastic pipe 730 and a second rubber pipe 720, wherein one end of the first rubber pipe 710 is connected with a rear outer tub of a tub body of the washing machine, the other end is connected with a lower end of the plastic pipe 730, an upper end of the plastic pipe 730 is connected with a lower end of the second rubber pipe 720, and an upper end of the second rubber pipe 720 is connected with a water level sensor; thus, the water level information in the rear outer tub of the tub is transferred to the water level sensor through the first rubber tube 710, the plastic tube 730, and the second rubber tube 720, thereby sensing the water level change in the rear outer tub of the tub; the first rubber tube 710, the plastic tube 730 and the second rubber tube 720 are connected by a clamp. The structure is widely applied in a common washing machine, and due to the first rubber tube 710, the second rubber tube 720 and the plastic tube 730 which are connected by the clamp, the installation structure can keep certain stability when the washing machine runs to generate larger vibration, and the connecting pipeline is not broken due to shaking of the washing machine.

In a small-sized washing machine, however, such as a wall-mounted washing machine, since the inner space of the washing machine is small, the mounting structure needs to be connected for a plurality of times through the clamp, so that the mounting difficulty of the water level sensor is high; meanwhile, the joint is easy to leak due to multiple times of pipeline connection, so that interference to the water level sensor is caused, and the detection precision of the water level sensor is low.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the water level sensing device of the washing machine, which has the advantages of simple structure, convenient installation, sensitive detection and high use reliability.

The invention also provides a washing machine with the water level sensing device of the washing machine.

An embodiment according to a first aspect of the present invention proposes a water level sensing apparatus of a washing machine adapted to be mounted to a wall surface; the water level sensing device comprises a water level sensor; the air chamber guide tube comprises a first tube section and a second tube section, wherein the first tube section is suitable for being connected to a rear outer barrel of the washing machine so as to contain gas and water, the second tube section contains gas and is connected to the water level sensor, the inner diameter of the second tube section is smaller than that of the first tube section, and the first tube section and the second tube section are integrally formed.

According to the water level sensing device of the washing machine, which is arranged on the washing machine suitable for being installed on the wall surface, and the characteristic of small vibration of the washing machine is utilized, the strength of the air chamber guide pipe cannot be influenced, so that the first pipe section and the second pipe section are integrally formed, and the structure can be simplified; meanwhile, the use of the pipe section is reduced, so that the connection weak point is reduced, and the leakage phenomenon at the connection position can be well avoided; in addition, the inner diameter of the second pipe section is smaller than that of the first pipe section, so that the advantages of simple structure, detection sensitivity, high use reliability and the like can be improved.

In addition, the water level sensing apparatus of a washing machine according to an embodiment of the present invention may further have the following additional technical features:

according to the water level sensing device of the washing machine, compared with the mode that the air chamber guide pipe is fixed through interference fit in the traditional washing machine, in order to avoid the fact that the interference fit extrudes the air chamber guide pipe to cause liquid level change in the pipe and influence detection results, the side edge of the first pipe section is provided with the fixing lug, the fixing lug is provided with the connecting part, and the connecting part is suitable for being fixed to other parts of the washing machine.

According to the water level sensing apparatus of the washing machine in one embodiment of the present invention, the connection part is a fixing hole.

Optionally, the fixing lug is arranged near the connection part of the first pipe section and the second pipe section.

Optionally, a fixing ring is sleeved on the first pipe section, and the fixing lug is arranged on one side of the fixing ring.

Optionally, the fixing lug is integrally formed with the first pipe section.

According to the water level sensing apparatus of the washing machine of one embodiment of the present invention, the relationship between the inner diameter d1 of the first pipe section and the inner diameter d2 of the second pipe section corresponds to: d1/d2=2-5, thereby further ensuring the sensing sensitivity of the water level sensing device to the water level change in the rear outer tub of the washing machine, and simultaneously reducing the occupied space of the whole structure.

According to the water level sensing apparatus of the washing machine of one embodiment of the present invention, the first pipe sections have the same cross-sectional area along the length direction thereof.

According to the water level sensing apparatus of a washing machine of one embodiment of the present invention, the diameter of the first pipe section is gradually decreased from the rear tub to the water level sensor.

According to the water level sensing apparatus of the washing machine of one embodiment of the present invention, the second pipe sections have the same cross-sectional area along the length direction thereof.

According to the water level sensing apparatus of a washing machine of one embodiment of the present invention, the diameter of the second pipe section is gradually decreased from the rear tub to the water level sensor.

According to the water level sensing apparatus of the washing machine of one embodiment of the present invention, the cross section of the first pipe section and/or the second pipe section is formed in a circular shape, an elliptical shape or a polygonal shape.

The water level sensing apparatus of a washing machine according to an embodiment of the present invention, further comprises: the fastening unit, the fastening unit will first pipeline section with back outer bucket fixed connection, just the fastening unit includes: the fastening body is sleeved at the joint of the first pipe section and the rear outer barrel; the buckling structure is arranged at two ends of the fastening body, and the fastening body is clamped on the first pipe section by the buckling structure.

The water level sensing apparatus of a washing machine according to an embodiment of the present invention, further comprises: the pipe clamps are arranged on the rear outer barrel at intervals along the length direction of the second pipe section so as to limit the air chamber guide pipe. Because the second pipe section has no liquid level, and the diameter of the second pipe section is far smaller than that of the first pipe section, the liquid level cannot be changed due to the fact that the pipe is extruded by the pipe clamp.

An embodiment according to a second aspect of the present invention proposes a wall-mounted washing machine, the wall-mounted washing machine includes the water level sensing apparatus according to an embodiment of the first aspect of the present invention.

According to the wall-mounted washing machine, the water level sensing device according to the first aspect of the invention has the advantages of reliable performance, simple structure, convenience in assembly and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

Fig. 1 is a sectional view of a water level sensing apparatus in the related art;

fig. 2 is a schematic view of a water level sensing apparatus of a washing machine according to an embodiment of the present invention when the rear tub is not assembled;

fig. 3 is a schematic view of a water level sensing apparatus of a washing machine according to an embodiment of the present invention when assembled with a rear tub;

fig. 4 is a side view of a water level sensing apparatus of a washing machine according to an embodiment of the present invention when assembled with a rear tub;

fig. 5 is a schematic view illustrating a structure of an overflow exhaust assembly of a washing machine according to an embodiment of the present invention;

fig. 6 is an enlarged view of a portion a in fig. 5;

fig. 7 is an exploded view of a wall-mounted washing machine according to an embodiment of the present invention;

fig. 8 is a partial assembly view of a wall-mounted washing machine according to an embodiment of the present invention;

fig. 9 is a front view of a wall-mounted washing machine according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view taken along line B-B in FIG. 9;

fig. 11 is an enlarged view of a portion C in fig. 10;

fig. 12 is a schematic view illustrating still another structure of an overflow exhaust assembly of a washing machine according to an embodiment of the present invention;

fig. 13 is an enlarged view of a portion D in fig. 12;

FIG. 14 is a schematic view of the structure of a tracheal adapter according to an embodiment of the present invention;

FIG. 15 is a diagram according to an embodiment of the invention is a cross-sectional view of the tracheal adapter;

Fig. 16 is a schematic structural view of an overflow exhaust assembly of a washing machine according to another embodiment of the present invention;

fig. 17 is an exploded view of a wall-mounted washing machine according to another embodiment of the present invention;

fig. 18 is a partial assembly view of a wall-mounted washing machine according to another embodiment of the present invention;

fig. 19 is an exploded view of a cabinet assembly of a wall-mounted washing machine according to an embodiment of the present invention;

fig. 20 is a perspective view of a cabinet assembly of a wall-mounted washing machine according to an embodiment of the present invention;

FIG. 21 is a perspective view of a holder according to one embodiment of the present invention;

fig. 22 is a front view of a cabinet assembly of a wall-mounted washing machine according to an embodiment of the present invention;

FIG. 23 is a cross-sectional view taken along line E-E of FIG. 22;

FIG. 24 is a cross-sectional view taken along line F-F of FIG. 22;

fig. 25 is an enlarged view of the portion G in fig. 24.

Reference numerals:

800: a water level sensing device;

810: a water level sensor;

820: an air chamber guide tube; 821: a first pipe section; 822: a second pipe section;

830: a pipe clamp;

840: a fastening unit; 841: a fastening body; 842: a buckling structure;

860: a fixing lug; 861: a fixing hole;

870: a mounting part;

100: an overflow exhaust assembly;

10: an overflow pipe; 11: a first overflow pipe; 12: a second overflow pipe;

20: an exhaust assembly;

21: a first exhaust pipe; 22: a second exhaust pipe; 24: an exhaust end;

23: an air tube adapter; 231: a first connection portion; 232: a second connecting portion; 233: a foam-killing part;

30: a three-way pipe;

40: a fastening structure; 41: a fastener; 42: a fastener;

110: a tube clamp;

200: a drainage assembly;

300: a fixing plate; 311: a fixing tongue;

400: a rear outer tub; 410: a through hole;

500: a connection part; 510: a protrusion unit;

600: a housing assembly; 601: a chamber;

620: a front housing; 621: positioning holes;

630: a fixing seat;

631: fixing the chamber; 632: avoiding the notch; 6321: an arc section; 6322: an inclined section;

633: a barrier sidewall;

640: a limit structure; 641: a limit part; 642: a connection section;

700: a water level sensing apparatus in the related art; 710: a first rubber tube; 720: a second rubber tube; 730: plastic

And a material pipe.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate an azimuth or a positional relationship based on that shown in the drawings, it is used merely for convenience in describing the invention and to simplify the description and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

A water level sensing apparatus 800 of a washing machine according to an embodiment of the present invention, which may be a wall-mounted washing machine, is described below with reference to the accompanying drawings. The wall-mounted washing machine may be disposed on a wall in a vertical direction (up-down direction as shown in fig. 3).

As shown in fig. 2 to 4, the water level sensing apparatus 800 of the washing machine according to the embodiment of the present invention includes a water level sensor 810 and an air chamber lead 820.

The air chamber guide pipe 820 comprises a first pipe section 821 and a second pipe section 822, wherein one end of the first pipe section 821 is communicated with a rear outer tub 8400 of the washing machine, the other end of the first pipe section 821 is communicated with one end of the second pipe section 822, and the other end of the second pipe section 822 is connected with the water level sensor 810.

In addition, compared with the washing machine in the related art, the washing machine is suitable for being installed on the wall surface, that is to say, the washing machine can be a wall-mounted washing machine, so that the intensity of the air chamber guide pipe cannot be influenced due to small vibration of the washing machine during operation, the first pipe section 821 and the second pipe section 822 can be arranged into an integrated structure, the structure can be simplified, the use of the pipe sections is reduced, the connection weak points are further reduced, the leakage phenomenon at the connection position can be well avoided, and the connection reliability is improved.

Embodiments according to the present invention will be described below with reference to the accompanying drawings the water level sensing apparatus 800 of the washing machine is operated.

As shown in fig. 3, when the water level in the rear tub 400 of the washing machine is raised, the water level in the first pipe section 821 communicating with the rear tub 400 of the washing machine is raised, thereby pressing the air in the air chamber introduction pipe 820 into the second pipe section 822, and the gas pressure in the second pipe section 822 is increased under the same water level change in the rear tub 400 because the inner diameter of the second pipe section 822 is smaller than that of the first pipe section 821;

when the water level in the rear tub 400 of the washing machine is lowered, the water level in the first pipe segment 821 communicated with the rear tub 400 of the washing machine is lowered, so that the gas in the second pipe segment 822 enters the first pipe segment 821, and the gas pressure in the second pipe segment 822 is reduced greatly under the same water level change in the rear tub 400 because the inner diameter of the second pipe segment 822 is smaller than that of the first pipe segment 821.

According to the water level sensing apparatus 800 of the washing machine in the embodiment of the present invention, the air chamber guide pipe 820 is provided with the first pipe section 821 and the second pipe section 822 having different inner diameters, and the inner diameter of the second pipe section 822 is made smaller than the inner diameter of the first pipe section 821, so that when the water level in the rear outer tub 400 is changed, the water capacity in the first pipe section 821 communicated with the air chamber guide pipe is changed at the same time, the air in the second pipe section 822 is compressed or expanded, and the pressure change in the second pipe section 822 is made more sensitive under the condition that the water level in the rear outer tub 400 of the washing machine is the same, thereby improving the detection reliability of the water level sensing apparatus 800. Therefore, according to the water level sensing apparatus 800 of the washing machine of the embodiment of the present invention, by providing it in the washing machine adapted to be mounted on the wall surface, the first pipe segment 821 and the second pipe segment 822 can be provided as an integral molding using the characteristic that the vibration of the washing machine is small, thus simplifying the structure, improving the reliability of the connection, and also defining that the inner diameter of the second pipe segment 822 is smaller than that of the first pipe segment 821, thus improving the detection sensitivity and the use reliability.

As shown in fig. 2 and 3, according to an example of the present invention, in order to prevent the air chamber lead tube from being pressed by the interference fit to cause the liquid level in the air chamber lead tube to change, thereby affecting the detection result, the side of the first pipe segment 821 is provided with a fixing lug 860, and the fixing lug 860 is provided with a connecting portion, and the air chamber lead tube 820 is connected to the washing machine through the connecting portion of the fixing lug 860, such that, since the fixing lug 860 is provided at the side of the first pipe segment 821, it does not exert any pressing effect on the first pipe segment 821, and thus does not exert any influence on the liquid level in the pipe segment, and thus does not exert any influence on the water level sensor 810.

According to a further example of the present invention, the connection part may be formed as the fixing hole 861, thereby simplifying the structure and facilitating the manufacture.

According to an alternative example of the present invention, to enhance the connection stability and further reduce the influence on the air chamber lead 820, a fixing ring is provided on the first pipe segment 821, and a fixing lug 860 is provided at one side of the fixing ring.

According to an alternative example of the present invention, the fixing lug 860 is integrally formed with the first pipe segment 821, thereby enhancing the connection reliability of the air chamber lead 820 and the washing machine, and also simplifying assembly and improving assembly efficiency.

According to an example of the present invention, as shown in fig. 3, the air chamber lead 820 extends in a vertical direction (i.e., up-down direction), the lower end of the first pipe section 821 is communicated with the rear tub 400, the upper end of the first pipe section 821 is communicated with the lower end of the second pipe section 822, the upper end of the second pipe section 822 is connected with the water level sensor 810, and the ratio of the inner diameter d1 of the first pipe section 821 to the inner diameter d2 of the second pipe section 822 may be between 2 and 5, for example, the inner diameter d1 of the first pipe section 821 and the inner diameter d2 of the second pipe section 822 may be 2 or 3 or 5, so that the detection sensitivity and reliability of the water level sensing apparatus 800 may be further improved by a reasonable ratio of the inner diameters of the first pipe section 821 and the second pipe section 822.

In an alternative embodiment of the present invention, the cross-sectional area of the first pipe segment 821 is equal throughout its length, so that the structure of the first pipe segment 821 can be simplified to facilitate manufacturing and molding. Of course, in another alternative embodiment, the diameter of the first pipe segment 821 may be gradually reduced from the rear tub 400 to the water level sensor 810, i.e., the first pipe segment 821 is gradually reduced along its length, thereby ensuring that the pressure variation of the gas is more remarkable along the length of the pipe segment in the case that the gas in the first pipe segment 821 and the second pipe segment 822 is pressurized, so as to facilitate the improvement of the sensing reliability of the gas sensor.

In an alternative example of the present invention, the cross-sectional areas of the second pipe sections 822 are all equal along the length thereof, so that the structure of the second pipe sections 822 can be simplified, and the manufacturing and shaping can be facilitated. In yet another alternative example, the diameter of the second pipe segment 822 may be gradually reduced from the rear tub 400 to the water level sensor 810, i.e., the second pipe segment 822 is gradually reduced along the length thereof, thereby ensuring that the pressure variation of the gas is more remarkable along the length of the pipe segment in case that the gas in the first pipe segment 821 and the second pipe segment 822 is pressurized, so as to facilitate the improvement of the sensing reliability of the gas sensor.

In some examples of the invention, the first pipe segment 821 and the second pipe segment 822 are integrally formed, thereby simplifying the overall structure of the air chamber lead 820 and simplifying the assembly steps.

Alternatively, the cross section of the first pipe segment 821 and/or the second pipe segment 822 may be circular (as shown in fig. 2), or may be elliptical or polygonal, for example, the first pipe segment 821 and the second pipe segment 822 may be circular (as shown in fig. 2), or the first pipe segment 821 may be circular, the second pipe segment 822 may be elliptical, etc., which may be selected by those skilled in the art according to actual design and processing requirements, and the present invention is not limited thereto.

In a specific example of the present invention, to ensure the stability of the fixing of the second pipe segment 822, the water level detection apparatus of the washing machine further includes a plurality of pipe clamps 830, for example, the number of pipe clamps 830 may be 2 (as shown in fig. 2), 3, or other, and the plurality of pipe clamps 830 may be spaced apart from each other along the length direction (generally up and down direction) of the second pipe segment 822 on the outer sidewall of the rear outer tub 400, thereby realizing the limitation of the second pipe segment 822 such that one end of the second pipe segment 822 connected to the water level sensor 810 is higher than the connection between the first pipe segment 821 and the rear outer tub 400, and preventing the second pipe segment 822 from being separated from the rear outer tub 400, resulting in one end of the second pipe segment 822 connected to the water level sensor 810 being lower than the connection between the first pipe segment 821 and the rear outer tub 400, thereby affecting the detection reliability of the water level sensor 810; in this embodiment, since the second pipe segment 822 has a diameter much smaller than that of the first pipe segment 821, the amount of compressive deformation is negligible; at the same time, there is no liquid level in the second pipe segment 822, so the use of the pipe clamp 830 to secure the second pipe segment 822 has no effect.

Optionally, as shown in fig. 2 and 3, the water level sensing apparatus 800 of the washing machine further includes a fastening unit 840, where the fastening unit 840 is mainly composed of a fastening body 841 and a fastening structure 842, the fastening body 841 is approximately formed as a clip, and is sleeved at the connection between the first pipe section 821 and the rear outer tub 400, the fastening structure 842 is provided at two ends of the annular fastening body 841, and the fastening body 841 can be fastened on the first pipe section 821 by the cooperation of the fastening structure 842, so as to ensure the connection reliability between the first pipe section 821 and the rear outer tub 400 and enhance the tightness.

Hereinafter, a wall-mounted washing machine according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 8 to 11, the wall-mounted washing machine according to the embodiment of the present invention includes a fixing plate 300, a rear tub 400, a connection part 500, an overflow exhaust assembly 100, and a cabinet assembly 600.

The rear tub 400 is mounted on the front side (i.e., the front side as shown in fig. 10) of the fixing plate 300, a through hole 410 is provided at the upper end of the rear tub 400, a through mounting hole is provided on the fixing plate 300, the connection part 500 is penetrated in the mounting hole and the front end of the connection part 500 is in communication with the through hole 410, and the rear end of the connection part 500 is connected with the overflow exhaust assembly 100.

As shown in fig. 19 and 20, the case assembly 600 is coupled to the front side of the fixing plate 300, and defines a receiving chamber with the fixing plate 300, in which the rear tub 400 is received, and the case assembly 600 is sized larger than the fixing plate 300 such that at least a portion of the case assembly 600 may cover the outermost edge of the fixing plate 300, that is, the case assembly 600 may have a height slightly larger in the up-down direction than the fixing plate 300, a width slightly larger in the left-right direction than the fixing plate 300, and may partially or entirely abut against the outer edge of the fixing plate 300 when the case assembly 600 is covered on the circumferential outer side of the fixing plate 300. Therefore, the force application point can be provided for a user on the mounting and dismounting wall body, and the operation is convenient.

Therefore, the wall-mounted washing machine provided by the embodiment of the invention has a compact overall structure, is convenient for users to apply force and operate when being mounted or dismounted on a wall body, can effectively save space and improve user experience.

In some embodiments, in order to prevent deformation caused by uneven stress of the case assembly 600, the outer edge of the fixing plate 300 is formed with a circle of protrusions, and when the case assembly 600 is covered on the outer periphery of the fixing plate 300, the case assembly 600 covers the outer sides of the protrusions, thereby providing support for the circumferential side wall of the case assembly 600 and reducing the deformation.

According to an embodiment of the present invention, as shown in fig. 10 and 11, the connection part 500 is formed substantially in a cylinder, and the front end of the connection part 500 is smoothly transitioned with the through-hole 410, so that water or foam can be better introduced into the overflow pipe 10, the rear end of the connection part 500 is provided with a protrusion unit 510, and the protrusion unit 510 may be formed by extending a cylindrical end portion to the circumferential side, so that the overflow pipe 10 is prevented from falling off from the connection part 500 after being connected.

As shown in fig. 19, in some examples, the case assembly 600 includes a front housing 620, the front housing 620 being coupled to the fixing plate 300 and defining a chamber 601, and the front housing 620 and the fixing plate 300 being provided with at least one set of left-right-direction stopper mechanisms on left and right sides, respectively. As shown in fig. 19 and 20, the front case 620 is generally a cavity structure adapted to the fixing plate 300, which is opened in the front-rear direction, such that the fixing plate 300 and the rear tub 400 may be inserted into the front case 620 from the rear to the front or the front case 620 may be sleeved outside the fixing plate 300 from the front to the rear during the assembly process to define a chamber 601 for washing laundry, wherein a door (not shown) for opening or closing the chamber 601 is provided at the front side of the front case 620.

The left and right sides of the front case 620 and the fixing plate 300 may be simultaneously provided with one or more sets of limit mechanisms for limiting the left-right direction offset of the front case 620 and the fixing plate 300, for example, one or more sets of limit mechanisms may be respectively provided at the left and right sides of the front case 620 and the fixing plate 300 in the front-rear direction; or more than one set of limit mechanisms may be provided at left and right sides of the front case 620 and the fixing plate 300 in the up-down direction, respectively; or more than one set of limiting mechanisms may be respectively disposed at the left and right sides of the front housing 620 and the fixing plate 300 in the front-rear direction and the up-down direction, so as to effectively limit the degree of freedom of the front housing 620 and the fixing plate 300 in the left-right direction, prevent the front housing 620 and the fixing plate 300 from being deformed or damaged due to the position deviation during use, and further effectively improve the service life of the cabinet assembly 600 of the whole wall-mounted washing machine.

In some embodiments of the invention, each set of limiting mechanisms may include: a holder 630 and a spacing structure 640. In particular, the method comprises the steps of, the fixing base 630 is provided on one of the side walls of the front case 620 or the side edges of the fixing plate 300. The limiting structure 640 is disposed on the other side wall of the front housing 620 or the side edge of the fixing plate 300, and the limiting structure 640 is adapted to be matched and fixed with the fixing base 630.

That is, the positions of the fixing base 630 and the limiting structure 640 are not particularly limited, and when the fixing base 630 is disposed on the front housing 620, the corresponding limiting structure 640 engaged therewith may be disposed on the side of the fixing plate 300; when the fixing base 630 is disposed on the side of the fixing plate 300, the corresponding limit structure 640 engaged therewith may be disposed on the side wall of the front housing 620. Of course, the fixing base 630 or the limiting structure 640 may be provided on both the side wall of the front case 620 and the side edge of the fixing plate 300. Thereby, the stability of the assembly between the front case 620 and the fixing plate 300 is further improved.

In some alternative embodiments of the present invention, the spacing structure 640 includes: a stop 641 and a connecting section 642. The limiting portion 641 is connected to the front housing 620 or the side of the fixing plate 300 through a connecting section 642. For example, as shown in fig. 24, the limiting structure 640 is a large head screw, the large head of the large head screw is a limiting portion 641, and the shaft portion of the large head screw is a connecting section 642. The shaft portion of the large head screw is screw-engaged with the fixing plate 300 to connect the large head screw to the side of the fixing plate 300. It will be appreciated, of course, that the above description is illustrative only and not intended to limit the scope of the invention, and that the cap screws may be attached to the mounting plate 300 by snap fit.

In some examples, referring to fig. 24, 25 in combination with fig. 19 and 22, the holder 630 has a stationary chamber 631 therein, the stationary chamber 631 has a blocking sidewall 633, and the stop 641 is adapted to be inserted into the stationary chamber 631 and to be stopped by the blocking sidewall 633. That is, the limiting portion 641 is inserted into the fixing chamber 631 to prevent the left and right positional deviation between the front housing 620 and the fixing plate 300, thereby further improving the stability of the coupling between the front housing 620 and the fixing plate 300 and the service life of the cabinet assembly 600 of the wall-mounted washing machine.

In one embodiment of the present invention, as shown in fig. 19 in combination with fig. 24, the fixing seat 630 is disposed at the rear portion of the sidewall of the front housing 620, and the rear side of the fixing seat 630 is opened, and the limiting structure 640 is disposed at the side of the fixing plate 300, and the limiting portion of the limiting structure 640 is adapted to enter the fixing chamber 631 from the rear side of the fixing seat 630. The limiting structure 640 is a large head screw perpendicular to the side edge of the fixing plate 300 and connected, and a gap for accommodating the blocking sidewall 633 is arranged between the large head of the large head screw and the side edge of the fixing plate 300.

Specifically, as shown in fig. 19 and 24, the large head screw may include an umbrella-shaped large head portion and a screw portion having one end connected to the large head portion, the screw portion is fixedly connected to the fixing plate 300, the large head portion may be embedded into the fixing chamber 631 of the fixing base 630 along an arc surface of the umbrella shape, the large head portion is clamped in the fixing chamber 631 after falling into the fixing chamber 631, and the blocking sidewall 633 is clamped in the gap, thereby realizing stable engagement between the fixing plate 300 and the front housing 620, and avoiding the position shift of the front housing 620 and the fixing plate 300 in the left-right direction.

In other embodiments of the present invention, the blocking sidewall 633 is formed with relief notches adapted to pass through the shank portion of a large head screw. Specifically, as shown in fig. 19 and 24, the fixing base 630 is provided at the rear of the sidewall of the front housing 620 and the rear side is opened, and a relief notch 632 is formed on the sidewall of the fixing base 630 opposite to the sidewall of the front housing 620, wherein the large-head screw enters the fixing chamber 631 from the relief notch 632. In other words, the fixing base 630 is recessed from the back-to-front direction toward the side wall of the fixing plate 300 to form the fixing chamber 631, and the inner side wall of the fixing base 630 (the side of the fixing base 630 near the center of the front housing 620) forms the avoidance notch 632, and the large-head screw is provided on the side wall of the fixing plate 300 and extends in the left-to-right direction of the fixing plate 300. Thus, when the front housing 620 is engaged with the fixing plate 300, the large-headed screw is inserted through the opening end of the escape notch 632 and is inserted into the fixing chamber 631 and is moved from the rear to be caught in the fixing chamber 631.

Further, as shown in fig. 21, the avoidance gap 632 may include: an arcuate segment 6321 and two sloped segments 6322. Specifically, the arcuate segment 6321 is shaped to match the shape of the shank of a large head screw. Two inclined sections 6322 extend obliquely outward from both ends of the arc-shaped section 6321, respectively. In other words, the avoidance gap 632 gradually increases in width from the rear to the front, thereby facilitating the insertion of the large-head screw into the fixing chamber 631, and preventing the large-head screw from being detached from the fixing chamber 631, effectively improving the stability of the assembly between the front housing 620 and the fixing plate 300.

In still other embodiments of the present invention, the fixing plate 300 has a fixing tongue 311 at the top thereof, the fixing tongue 311 has a screw hole thereon, the rear side of the top wall of the front housing 620 has a positioning hole 621, and the positioning hole 621 coincides with the screw hole to be adapted to pass a screw after the front housing 620 is coupled with the fixing plate 300. As shown in fig. 19 to 20 in combination with fig. 22 to 23, after the rear tub 400 and the fixing plate 300 are inserted into the front case 620, the top of the front case 620 is covered on the top wall of the fixing plate 300, the positioning holes 621 and the screw holes are oppositely disposed in the up-down direction, and the screws pass through the positioning holes 621 and the screw holes to define the degrees of freedom of the front case 620 and the fixing plate 300 in the up-down direction, thereby further improving the stability of the assembly between the front case 620 and the fixing plate 300, preventing the front case 620 and the fixing plate 300 from being displaced in the up-down direction, and improving the service life of the case assembly 600 of the wall-mounted washing machine. Advantageously, a hole paste may be provided right above the screw, thereby improving the external appearance quality of the cabinet assembly 600 of the wall-mounted washing machine.

Hereinafter, a wall-mounted washing machine according to an embodiment of the present invention will be described in detail with reference to fig. 19 to 24.

Specifically, the front housing 620 is coupled to the fixing plate 300 and defines a chamber 601, and a plurality of sets of limiting mechanisms for limiting the left-right direction offset of the front housing 620 and the fixing plate 300 are provided at left and right sides of the front housing 620 and the fixing plate 300 in the up-down direction, respectively.

The spacing mechanism may include a holder 630 and a spacing structure 640. The holder 630 is provided at the rear of the sidewall of the front case 620 and the rear side is opened to form a fixing chamber 631, the fixing chamber 631 has a blocking sidewall 633, and the limiting portion 641 is adapted to be inserted into the fixing chamber 631 and blocked and limited by the blocking sidewall 633. A recess 632 is formed at a sidewall of the holder 630 opposite to the sidewall of the front case 620. The stopper 640 is provided on the fixing plate 300 in the left-right direction of the fixing plate 300. The limiting structure 640 may be a large-head screw, and the large-head screw enters the fixing chamber 631 from the avoidance gap 632. The large head screw is screw-engaged with the side of the fixing plate 300, and a gap accommodating the blocking sidewall 633 is provided between the large head of the large head screw and the side of the fixing plate 300.

Further, the avoidance gap 632 includes: an arcuate segment 6321 and two sloped segments 6322. The arcuate segment 6321 is shaped to match the shape of the shank of a large head screw. Two inclined sections 6322 extend obliquely outward from both ends of the arc-shaped section 6321, respectively. The avoidance gap 632 gradually increases from the rear to the front, so that the large-head screw is conveniently embedded into the fixing chamber 631, and at the moment, the blocking side wall is blocked into the gap between the large head of the large-head screw and the fixing plate 300, thereby avoiding the large-head screw from being separated from the fixing chamber 631, and effectively improving the assembling stability between the front shell 620 and the fixing plate 300.

The fixing plate 300 has a fixing tongue 311 at the top, a screw hole is formed in the fixing tongue 311, a positioning hole 621 is formed at the rear side of the top wall of the front case 620, and the positioning hole 621 coincides with the screw hole to be adapted to pass a screw after the front case 620 is coupled with the fixing plate 300. The screws pass through the positioning holes 621 and the screw holes to define the degrees of freedom of the front housing 620 and the fixing plate 300 in the up-down direction, thereby further improving the stability of the assembly between the front housing 620 and the fixing plate 300, preventing the front housing 620 and the fixing plate 300 from being displaced, and improving the service life of the case assembly 600.

The assembly process of the wall-mounted washing machine of the above embodiment is approximately as follows: firstly, installing and arranging a screw rod part of a big head screw on a fixed plate 300; then, the fixing plate 300 and the rear tub 400 are moved in the front housing 620 direction along the front and rear directions such that the fixing plate 300 and the rear tub 400 extend into the front housing 620, and the large-head screw is fastened in the fixing chamber 631 such that the front housing 620 and the fixing plate 300 are stably engaged in the left and right directions; finally, the screws are passed through the positioning holes 621 and the screw holes so that the front housing 620 and the fixing plate 300 are further stably engaged in the up-down direction.

As shown in fig. 5-18, in some embodiments, the overflow exhaust assembly 100 includes an overflow pipe 10 and an exhaust assembly 20.

One end of the overflow pipe 10 is adapted to be connected to the tub rear outer tub 400 of the washing machine, and the other end of the overflow pipe 10 is in communication with the outside, such that the tub rear outer tub 400 of the washing machine forms a flow path with the outside through the overflow pipe 10, and when the water level in the tub rear outer tub 400 of the washing machine is excessively high or the foam is excessively high, the foam and water can be discharged through the flow path formed by the overflow pipe 10.

The exhaust assembly 20 is formed in a bent structure having a bent structure, one side of the exhaust assembly 20 is connected to the overflow pipe 10, and a pipe section bent structure of the side of the exhaust assembly 20 connected to the overflow pipe 10 is not lower than a connection of the exhaust assembly 20 and the overflow pipe 10 in an up-down direction, that is, the connection between the overflow pipe 10 and the air discharge assembly 20 is not higher than the pipe section of the air discharge assembly 20 directly connected with the overflow pipe 10 at the position of the bending structure in the up-down direction, so that the overflow water in the rear outer tub 400 does not enter the air discharge assembly 20 through the overflow pipe 10, thereby ensuring the smooth flow path in the air discharge assembly 20.

When the foam is too much in the rear tub 400 of the washing machine and the flow path of the overflow pipe is too long, the flow resistance of the foam is increased, and when a part of the foam is not discharged, the foam is introduced into one side pipe section of the air discharge assembly 20 directly connected to the overflow pipe 10, and then slowly rises to the bending structure, and is mostly broken by extrusion in the bending structure, and at the same time, a small amount of foam may be introduced into the other side pipe section of the air discharge assembly 20 (i.e., positioned at the other side of the bending structure of the air discharge assembly 20) through the bending structure, at this time, the foam in the overflow pipe 10 is discharged to the outside, and at this time, a negative pressure is formed in the air discharge assembly 20, and the foam instantaneously flows back into the overflow pipe 10 and is discharged to the outside under the siphon effect.

According to the overflow exhaust assembly 100 of the washing machine, the exhaust assembly 20 which is connected with the overflow pipe 10 and has a bent structure is arranged, and one side pipe section of the bent structure, which is connected with the overflow pipe 10, of the exhaust assembly 20 is not lower than the connection position of the overflow pipe 10 and the exhaust assembly 20 in the up-down direction, so that excessive foam discharged from the rear outer tub 400 of the washing machine gradually rises to the bent structure air pipe adapter 23 after entering the exhaust assembly 20 and is broken at the bent structure air pipe adapter 23 in a large amount, the foam eliminating effect is achieved, and then, air pressure balance can be formed inside and outside the rear outer tub 400, and external pollution of the washing machine caused by overflow of foam in the rear outer tub 400 can be avoided.

As shown in fig. 5, according to an embodiment of the present invention, the exhaust assembly 20 is mainly composed of a first exhaust pipe 21 and a second exhaust pipe 22, one end of the first exhaust pipe 21 is connected to the overflow pipe 10 and extends upward substantially in a vertical direction (up-down direction as shown in fig. 5), one end of the second exhaust pipe 22 is connected to the other end of the first exhaust pipe 21, the other end of the second exhaust pipe 22 extends downward to form an exhaust end 24 that is in communication with the outside, and a junction of the first exhaust pipe 21 and the second exhaust pipe 22 is formed in a bent structure in a bent shape.

Specifically, when the foam in the rear tub 400 of the washing machine is not discharged until it is increased in flow resistance, a portion of the foam is introduced into the first exhaust duct 21, then slowly rises into the bent air duct adapter 23, and is mostly broken by being pressed by the inner wall surface in the bent air duct adapter 23, thereby achieving the effect of foam removal, even though a small amount of foam may continue into the second exhaust duct 22, since the foam and water in the overflow duct 10 have been discharged to the outside at this time, negative pressure is formed in the first and second exhaust ducts 21 and 22, and the foam instantaneously flows back into the overflow duct 10 under the siphon effect, and is discharged to the outside.

As shown in fig. 12 to 15, in an example of the present invention, the bending structure may be an air pipe adaptor 23, and the first exhaust pipe 21 and the second exhaust pipe 22 are connected through the air pipe adaptor 23, so that the foam entering the first exhaust pipe 21 is greatly broken by being extruded from the inner wall surface of the air pipe adaptor 23 when flowing to the air pipe adaptor 23, thereby achieving the effect of foam removal and balancing the air pressure of the rear outer tub 400.

As shown in fig. 12 to 15, in a further example of the present invention, the air pipe adaptor 23 is formed in a substantially herringbone structure, the air pipe adaptor 23 is mainly composed of a first connection portion 231, a second connection portion 232 and a foam-removing portion 233, the foam-removing portion 233 is located above the first connection portion 231 and the second connection portion 232, the first connection portion 231 communicates with the upper end of the first exhaust pipe 21, the second exhaust pipe 232 communicates with the upper end of the second exhaust pipe 22, the first exhaust pipe 231, the second exhaust pipe 232 and the foam-removing portion 233 communicate with each other, so that after the foam entering the first exhaust pipe 21 rises to the first connection portion 231, the foam gradually enters the foam-removing portion 233 and is broken by the inner wall in the foam-removing portion 233, thereby achieving the foam-removing effect, even if part of the foam is not broken and enters the second connection portion 233, and then enters the second exhaust pipe 22, but at this time, since the foam and water in the overflow pipe 10 are already discharged to the outside, negative pressure is formed in the first exhaust pipe 21 and the second exhaust pipe 22, so that the foam is instantaneously returned to the outside under the effect that the overflow pipe is discharged to the outside.

As shown in fig. 14 and 15, in a further example, the top of the foam-extinguishing portion 233 is sealed so that a foam-pressing chamber can be formed in the foam-extinguishing portion, thereby enhancing the pressing action of the foam entering therein and improving the foam-extinguishing effect.

As shown in fig. 5 and 12-15, according to an alternative example of the present invention, the inner diameter of the air tube adapter 23 is smaller than the inner diameter of the first exhaust tube 21, so that more foam may be broken when foam enters the air tube adapter 23 from the first exhaust tube 21, and at the same time, the inner diameter of the air tube adapter 23 is smaller than the second exhaust tube 22, so that part of the foam continuously entering the second exhaust tube 22 may be gradually broken in the second exhaust tube 22, and the foam is prevented from flowing out of the body through the second exhaust tube 22. Of course, the specific inner diameters of the first exhaust pipe 21 and the second exhaust pipe 22 may be adjusted according to actual design requirements, as long as both are smaller than the air pipe adapter 23.

According to still another alternative example of the present invention, the exhaust end 24 of the second exhaust pipe 22 is lower than the junction of the overflow pipe 10 and the first exhaust pipe 21 in the up-down direction, so that the flow path can be increased, the foam is ensured to be gradually broken in the flow path, and the foam is prevented from flowing out of the washing machine through the second exhaust pipe 22 to affect the use.

As shown in fig. 16, 17 and 18, in another embodiment of the present invention, the exhaust assembly 20 includes a first exhaust pipe 21 and a second exhaust pipe (not shown), one end of the first exhaust pipe 21 is connected to the overflow pipe 10 and extends upward in a substantially vertical direction (up-down direction as shown in fig. 5), one end of the second exhaust pipe is connected to the other end of the first exhaust pipe 21, the other end of the second exhaust pipe is opened to form an exhaust end, and the second exhaust pipe is constructed in a bent structure, for example, the second exhaust pipe may be formed in an arc shape or a ring shape extending in a circumferential direction, so that a circulation path may be extended, gradual breakage of foam in the circulation path may be ensured, and outflow of foam out of the washing machine may be prevented from affecting use.

In some examples, to facilitate manufacturing and assembly, to improve the tightness between the first exhaust pipe 21 and the second exhaust pipe, the first exhaust pipe 21 and the second exhaust pipe may be integrally formed therebetween.

As shown in fig. 5, 7 and 8, in one embodiment of the present invention, the overflow pipe 10 is mainly composed of a first overflow pipe 11, a second overflow pipe 12 and a three-way pipe 30, the three-way pipe 30 includes a first port, a second port and a third port, the upper end of the first overflow pipe 11 is connected to the rear tub 400 of the washing machine, the lower end of the first overflow pipe 11 is connected to the first port, the upper end of the second overflow pipe 12 is connected to the second port, the lower end of the second overflow pipe 12 is in communication with the outside, and simultaneously, the air discharge assembly 20 is in communication with the overflow pipe 10 through the third port, thus facilitating the assembly connection of the overflow air discharge assembly 100 and simplifying the manufacturing process.

In one example of the present invention, for ease of manufacture and assembly, the inner diameters of the first and second overflow pipes 11, 12 are equal, and the inner diameters of the first and second exhaust pipes 21, 22 are equal, so that interchangeability between the overflow pipes 10 and between the exhaust pipes can be enhanced at the time of assembly.

According to an example of the present invention, in order to prevent excessive foam in the rear tub 400 from being discharged from the overflow pipe 10 and thus from the outlet end of the exhaust pipe through the flow path of the exhaust assembly 20, the inner diameter D1 of the overflow pipe 10 (including the first overflow pipe 11 and the second overflow pipe 12) is set to be larger than the inner diameter D2 of the exhaust pipe (including the first exhaust pipe 21 and the second exhaust pipe 22), whereby the capacity in the flow path of the overflow pipe 10 can be increased, thereby reducing foam entering the exhaust pipe. Of course, those skilled in the art can also extend the length of the exhaust pipe only according to actual design requirements, or set the inner diameter D1 of the overflow pipe 10 to be greater than or equal to the inner diameter D2 of the exhaust pipe, and the above examples can achieve the purpose of avoiding the foam flowing out of the washing machine from the exhaust end 24 of the exhaust assembly 20.

Referring to fig. 6 and 8, the overflow exhaust assembly 100 further includes a fastening structure 40, for example, an upper fastening structure as shown in fig. 7, which fixedly connects the overflow pipe 10 with the rear tub 400 of the washing machine, and a lower fastening structure, which fixedly connects the overflow pipe 10 with the drain assembly 200 of the washing machine, according to an embodiment of the present invention.

As shown in fig. 6, in a further example of the present invention, the fastening structure 40 is mainly composed of a fastening member 41 and a fastening member 42, wherein the fastening member 41 is formed as a clip, and is sleeved at the connection between the overflow pipe 10 and the rear tub 400 of the tub body or the connection between the overflow pipe 10 and the drain assembly 200, and the fastening member 42 is provided at both ends of the annular fastening member 41, so that the fastening member 41 can be fastened to the overflow pipe 10 by the cooperation of the fastening member 42, thereby ensuring the connection reliability between the overflow pipe 10 and the rear tub 400 of the tub body and the drain assembly 200, and enhancing the tightness.

In a specific example of the present invention, in order to ensure the fixing stability of the overflow pipe 10 and the exhaust pipe, the overflow exhaust assembly 100 of the washing machine further includes a plurality of pipe clamps 110, for example, the number of the pipe clamps 110 may be 3, 5, or other, and the plurality of pipe clamps 110 are spaced apart from each other along the length direction (as shown in fig. 8) of the overflow pipe 10 and the exhaust pipe on the back side of the fixing plate 300 of the washing machine, thereby realizing the limiting of the overflow pipe 10 and the exhaust pipe, and avoiding the overflow pipe 10 and the exhaust pipe from being separated from the fixing plate 300, thereby affecting the drainage and the foam discharging of the overflow exhaust assembly 100 and the function of balancing the air pressure.

Other constructions and operations of the water level sensing apparatus 800 of the washing machine and the washing machine according to the embodiment of the present invention are well known to those skilled in the art, and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. A wall-mounted washing machine adapted to be mounted to a wall surface; characterized in that the washing machine comprises: an overflow exhaust assembly, a box assembly and a water level sensing device;

the water level sensing apparatus includes: a fixing plate; the rear outer barrel is arranged on the positive side of the fixed plate; a water level sensor; the air chamber guide pipe comprises a first pipe section and a second pipe section, wherein the first pipe section is suitable for being connected to a rear outer barrel of the washing machine to contain gas and water, the second pipe section contains gas and is connected to the water level sensor, and the inner diameter of the second pipe section is smaller than that of the first pipe section; the first pipe section and the second pipe section are integrally formed; the side edge of the first pipe section is provided with a fixing lug, and the fixing lug is provided with a connecting part which is suitable for being fixed to other parts of the washing machine;

the rear outer barrel is arranged on the front side of the fixed plate, a through hole is formed in the upper end of the rear outer barrel, a through mounting hole is formed in the fixed plate, the connecting part is arranged in the mounting hole in a penetrating mode, the front end of the connecting part is communicated with the through hole, and the rear end of the connecting part is connected with the overflow exhaust assembly; the overflow exhaust assembly comprises an overflow pipe and an exhaust assembly; one end of the overflow pipe is suitable for being connected with the rear outer barrel of the barrel body of the washing machine, and the other end of the overflow pipe is communicated with the outside; the exhaust assembly is of a bent structure and is provided with a bent structure, one side of the exhaust assembly is connected to the overflow pipe, and the pipe section bent structure of one side of the exhaust assembly connected with the overflow pipe is higher than the joint of the exhaust assembly and the overflow pipe in the up-down direction;

The exhaust assembly includes: the first exhaust pipe and the second exhaust pipe are connected with each other at one end, the other end extends upwards, one end of the second exhaust pipe is connected with the other end of the first exhaust pipe, the other end of the second exhaust pipe extends downwards to form an exhaust end communicated with the outside, and the joint of the first exhaust pipe and the second exhaust pipe is in a bending structure;

the first exhaust pipe is connected with the second exhaust pipe through an air pipe adapter, and the bending structure is the air pipe adapter.

2. The wall-mounted washing machine as claimed in claim 1, wherein the connection part is a fixing hole.

3. The wall-mounted washing machine according to claim 1, wherein the fixing lugs are provided near the connection of the first pipe section and the second pipe section.

4. A wall-mounted washing machine as claimed in any one of claims 1 to 3 wherein the first tube section is provided with a retaining ring and the retaining lug is provided on one side of the retaining ring.

5. A wall-mounted washing machine as claimed in any one of claims 1 to 3 wherein the fixing lugs are integrally formed with the first tube section.

6. The wall-mounted washing machine according to claim 1, further comprising:

the fastening unit, the fastening unit will first pipeline section with back outer bucket fixed connection, just the fastening unit includes:

the fastening body is sleeved at the joint of the first pipe section and the rear outer barrel;

the buckling structure is arranged at two ends of the fastening body, and the fastening body is clamped on the first pipe section by the buckling structure.

7. The wall-mounted washing machine according to claim 1, further comprising:

the pipe clamps are arranged on the rear outer barrel at intervals along the length direction of the second pipe section so as to limit the second pipe section.