WO2019201116A1 - Front-loading washer and spray system thereof - Google Patents

Abstract

A front-loading washer and a spray system thereof aim to solve the problem of the complex mounting structure of a spray device of a front-loading washer having a circulating spray function and the high manufacturing cost thereof. The front-loading washer comprises a machine body (1), an outer drum (2) and an inner drum (3) sequentially arranged from outside to inside. The spray system comprises a circulating pump (8), a water outlet tube (9), and an annular cavity (10) disposed at the front end of the outer drum (2). The annular cavity (10) is provided with a spray port (101) thereon. The circulating pump (8) is disposed on the machine body (1) or the outer drum (2). A water inlet port of the circulating pump (8) is connected to the outer drum (2), and a water outlet port thereof is in communication with the annular cavity (10) by means of the water outlet tube (9). When in operation, the circulating pump (8) pumps the wash water in the outer drum (2) to the annular cavity (10), such that the wash water is sprayed into the inner drum (3) by means of the spray port (101). The front-loading washer and the spray system thereof have simple structures and low manufacturing costs, and can greatly improve the washing efficiency.

Description

Drum washing machine and its sprinkler system Technical field

The invention belongs to the field of household appliances, and particularly provides a drum washing machine and a spraying system thereof.

Background technique

The existing drum washing machine originates from Europe, and mainly includes a box body, an outer tube and an inner tube from the outside to the inside. The working principle of the drum washing machine is similar to that of the hammer hammer hitting the clothes. When working, the inner cylinder rotates under the driving of the driving motor. As the inner cylinder rotates, the laundry is continuously lifted and lowered in the drum, and then lifted and then dropped, and repeated motion is performed. The clothes are washed cleaned by the combination of washing powder and water.

In order to improve the effect of water flushing and rinsing, some drum washing machines are also provided with a circulating spray device. A drum type washing machine disclosed in the patent document of the publication No. CN102482834B, in which a circulation path is provided, one end of the circulation path leads to a bottom end of a water tank (outer tube), and the other end of the circulation path leads to a water tank opening Multiple outlets on the edge. The circulation path can supply wash water from the bottom end of the water tank to the plurality of discharge ports, and then into the drum (inner cylinder) to circulate the laundry.

Although the drum type washing machine disclosed in the patent document of the publication No. CN102482834B has a strong cleaning ability for clothes, the water tank provided with a plurality of discharge ports has a complicated structure and a high production cost.

Accordingly, there is a need in the art for a new drum washing machine to solve the above problems.

Summary of the invention

In scenario one:

In order to solve the above problems in the prior art, in order to solve the problem that the spray device of the existing drum washing machine having the circulating spray function has a complicated installation structure and high production cost, the present invention provides a spray for a drum washing machine. a rinsing system, the drum washing machine includes a casing, an outer cylinder and an inner cylinder which are disposed in order from the outside to the inside, and the spraying system includes a circulation pump, an outlet pipe, and an annular cavity disposed at a front end of the outer cylinder, the ring An injection port is disposed on the cavity; the water inlet of the circulation pump leads into the outer cylinder, and the water outlet of the circulation pump communicates with the annular cavity through the outlet pipe; when working, the circulation pump will be A washing water pump in the outer cylinder is sent to the annular chamber so that the washing water is sprayed into the inner cylinder by the injection port.

In a preferred embodiment of the above spray system, the annular chamber and the outlet pipe are connected by a connection structure; or the annular cavity is directly connected to the outlet pipe; or the annular cavity and the outlet pipe Made in one piece.

In a preferred embodiment of the above spray system, the injection port is a slit structure formed on the annular cavity.

In a preferred embodiment of the above spray system, the injection port has a guiding structure for injecting wash water entering the annular chamber obliquely into the inner cylinder.

In a preferred embodiment of the above spray system, the injection port has an injection assembly for injecting wash water entering the annular chamber into a uniform annular water curtain and then injecting into the inner cylinder.

In a preferred embodiment of the shower system described above, a plurality of injection ports are provided on the annular chamber at equal intervals or at non-equal intervals.

In a preferred embodiment of the above spray system, a sealing window pad is disposed between the box mouth and the outer tube mouth of the drum washing machine, and the annular cavity is located at an inner region of the sealing window pad.

In a preferred embodiment of the above spray system, the water outlet of the circulation pump is also in communication with a drain pipe of the drum washing machine; the outlet pipe is provided with a first cutoff for selectively opening or closing the water outlet pipe a valve; the drain pipe is provided with a second shutoff valve for selectively opening or closing the drain pipe.

In a preferred embodiment of the above spray system, the spray system further includes a three-way valve, and the water outlet of the circulation pump is selectively in communication with the outlet pipe or the drain pipe by the three-way valve.

The present invention also provides a drum washing machine comprising a washing machine body, the drum washing machine further comprising the above-described spray system.

In the technical solution of the present invention, by separately providing an annular cavity at the front end of the outer cylinder and providing an injection port on the annular cavity, the injection port is preferably a narrow slit structure formed on the annular cavity, which changes the structure of the existing drum washing machine. It is small and does not need to be separately provided with the injection device, thereby greatly reducing the manufacturing cost of the washing machine. In addition, as a preferred example, the annular cavity is disposed in the inner region of the sealing window mat to ensure the sealing of the sealing window mat. Moreover, the ejection opening of the annular waterfall water flow is realized by providing the guiding structure or the jetting assembly at the injection port of the present invention, and the spraying effect can quickly pass through the laundry, thereby greatly increasing the rinsing rate.

In scenario two:

In order to solve the above problems in the prior art, in order to solve the problem that the spray device of the existing drum washing machine having the circulating spray function has a complicated installation structure and high production cost, the present invention provides a spray for a drum washing machine. a rinsing system comprising a tank, an outer cylinder and an inner cylinder arranged in order from the outside to the inside; the sprinkling system comprising a circulation pump, an outlet pipe and a ring between the casing and the outer cylinder a cavity member; the annular cavity member is provided with an injection member; the circulation pump is disposed on the casing or the outer cylinder, and a water outlet of the circulation pump communicates with the annular cavity member through the outlet pipe In operation, the circulation pump pumps the washing water in the outer cylinder to the annular chamber member such that the washing water is sprayed into the inner cylinder by the injection member.

In a preferred embodiment of the sprinkler system described above, a sealing window mat is disposed between the casing and the outer cylinder, and the injection member passes through the sealing window mat.

In a preferred embodiment of the above spray system, the annular cavity member and the outlet pipe are connected by a connection structure; or the annular cavity member is directly connected to the outlet pipe; or the annular cavity member and the The water pipe is made in one piece.

In a preferred embodiment of the above spray system, the spray member includes an injection tube and a spray nozzle that are connected to each other or integrally formed, the first end of the spray tube being in communication with the annular chamber member, the spray tube a second end passes through the sealing window mat; the spray nozzle is disposed at a second end of the spray tube for injecting wash water entering the annular chamber member into the inner barrel.

In a preferred embodiment of the above spray system, the spray nozzle has a guide structure for injecting wash water entering the annular chamber member obliquely into the inner cylinder.

In a preferred embodiment of the above spray system, the spray nozzle has a spray assembly for injecting wash water entering the annular chamber member into a uniform annular water curtain and then injecting into the inner cylinder.

In a preferred embodiment of the spray system described above, the annular chamber member is disposed in an outer region of the sealed window mat.

In a preferred embodiment of the above-described shower system, a plurality of injection members are arranged equidistantly or non-equally spaced on the annular chamber members.

In a preferred embodiment of the above spray system, the water outlet of the circulation pump is also in communication with a drain pipe of the drum washing machine; the outlet pipe is provided with a first cutoff for selectively opening or closing the water outlet pipe a valve; the drain pipe is provided with a second shut-off valve for selectively opening or closing the drain pipe; or the spray system further includes a three-way valve, the water outlet of the circulation pump is by the three-way A valve is selectively in communication with the outlet pipe or the drain.

The present invention also provides a drum washing machine comprising a washing machine body, the drum washing machine further comprising the above-described spray system.

In the technical solution of the present invention, by separately providing an annular cavity member in an outer region of the sealing window pad and providing an injection member on the annular cavity member (the injection member passes through the sealing window pad), the washing water is sprayed into the inner cylinder the goal of. Since the injection member is directly disposed in the annular cavity member, the structure of the injection member can be flexibly set to enhance the ejection effect of the wash water, and the processing is simple. Also, since the injection member is directly disposed in the annular cavity member, the structural change to the drum washing machine is small, and the installation is simple, and it is only necessary to pass the injection member through the sealing window pad. Thereby, the manufacturing cost of the washing machine is greatly reduced. Further, as a preferred example, the ejection effect of the annular waterfall water flow is achieved by providing the guiding structure or the jetting assembly at the nozzle, which can quickly pass through the laundry, thereby greatly increasing the rinsing rate.

In option three:

In order to solve the above problems in the prior art, in order to solve the problem that the spray device of the existing drum washing machine having the circulating spray function has a complicated installation structure and high production cost, the present invention provides a spray for a drum washing machine. a washing system, the drum washing machine comprises a box body, an outer tube and an inner tube which are arranged in order from the outside to the inside, and a sealing window pad is arranged between the box body port and the outer tube mouth, the box body comprises a front panel, the box body a port formed on the front panel, the sprinkler system including a circulation pump, an outlet pipe, and an annular cavity member located in an outer region of the sealing window pad, the annular cavity member being fixed to an inner wall of the front panel; An annular member is disposed on the annular cavity member, the injection member passes through the sealing window pad; a water inlet of the circulation pump leads into the outer cylinder, and a water outlet of the circulation pump passes through the outlet pipe The annular chamber member is in communication; in operation, the circulation pump pumps wash water in the outer cylinder to the annular chamber member such that the wash water is sprayed into the inner cylinder by the injection member.

In a preferred embodiment of the above spray system, the inner side of the front panel has an inner flange, and the annular cavity member is fixedly mounted on the inner flange of the front panel by a fastening device.

In a preferred embodiment of the above spray system, the sealing window mat includes a fixing portion that is embedded between the annular chamber member and an inner wall of the front panel.

In a preferred embodiment of the above spray system, the annular cavity member is provided with a snap groove, and the fixing portion is provided with a snap protrusion; when the fixing portion is embedded in the annular cavity member When the inner wall of the front panel is between, the snap protrusion is received in the snap groove, thereby restricting the fixing portion from coming out between the annular cavity member and the inner wall of the front panel; Alternatively, the annular cavity member is provided with a snap protrusion, and the fixing portion is provided with a snap groove; when the fixing portion is embedded between the annular cavity member and the inner wall of the front panel The snap protrusion is received in the snap groove to restrict the fixing portion from coming out between the annular cavity member and the inner wall of the front panel.

In a preferred embodiment of the above spray system, the drum washing machine further includes a door body, the door body is provided with an observation window, and the observation window and the seal are provided when the door body is in a closed state. An interference seal is formed between the window mats.

In a preferred embodiment of the above spray system, the annular cavity member and the outlet pipe are connected by a connection structure; or the annular cavity member is directly connected to the outlet pipe; or the annular cavity member and the The water pipe is made in one piece.

In a preferred embodiment of the above spray system, the spray member includes an injection tube and a spray nozzle that are connected to each other or integrally formed, the first end of the spray tube being in communication with the annular chamber member, the spray tube a second end passes through the sealing window mat; the spray nozzle is disposed at a second end of the spray tube for injecting wash water into the inner cylinder of the annular chamber member.

In a preferred embodiment of the above spray system, the spray nozzle has a guiding structure or a spray assembly for injecting wash water entering the annular chamber member obliquely into the inner cylinder; The assembly is for injecting wash water entering the annular cavity member into a uniform annular water curtain and spraying into the inner cylinder.

In a preferred embodiment of the above-described shower system, a plurality of injection members are arranged equidistantly or non-equally spaced on the annular chamber members.

The present invention also provides a drum washing machine comprising a washing machine body, the drum washing machine further comprising the above-described spray system.

In the technical solution of the present invention, the annular cavity member is separately provided in the outer region of the sealing window mat, and the annular cavity member is fixed to the inner wall of the front panel of the casing, and the injection member is disposed on the annular cavity member (the injection member is worn Through the sealing window mat), the purpose of spraying the washing water into the inner cylinder is achieved. Since the injection member is directly disposed in the annular cavity member, the structure of the injection member can be flexibly set to enhance the ejection effect of the wash water. Moreover, in the process of fixing the annular cavity member, the window pad fixing portion can also be fixed to the inner flange at the same time (it can also be understood that the window pad fixing portion is fixed to the annular cavity member and the inner portion under the pressing force) Between the cuffs). By this design, the sealing window mat and the annular cavity member can be fixed at the same time, which saves the manufacturing process, thereby greatly reducing the manufacturing cost of the washing machine. Further, as a preferred example, the ejection effect of the annular waterfall water flow is achieved by providing the guiding structure or the jetting assembly at the nozzle, which can quickly pass through the laundry, thereby greatly increasing the rinsing rate.

In option four:

In order to solve the above problems in the prior art, in order to solve the problem that the spray device of the existing drum washing machine having the circulating spray function has a complicated installation structure and high production cost, the present invention provides a spray for a drum washing machine. a shower system, the drum washing machine comprises a box body, an outer tube and an inner tube which are arranged in order from the outside to the inside, and a sealing window pad is arranged between the box body port and the outer tube mouth, the sprinkling system comprises a circulation pump, an outlet pipe and An annular cavity member located at an outer region of the sealing window pad, the annular cavity member being fixed to an outer side of the front end of the outer cylinder; the annular cavity member being provided with an injection member, the injection member passing through the sealing window a water inlet of the circulation pump leads to the outer cylinder, and a water outlet of the circulation pump communicates with the annular cavity member through the outlet pipe; in operation, the circulation pump will be in the outer cylinder A wash water pump is sent to the annular chamber member such that the wash water is sprayed into the inner cylinder by the injection member.

In a preferred embodiment of the above spray system, the annular cavity member is fixedly mounted to the outer side wall of the front end of the outer cylinder by a fastening member.

In a preferred embodiment of the above spray system, the sealing window mat includes a fixing portion that is interposed between the annular chamber member and an outer side wall of the front end of the outer tube.

In a preferred embodiment of the above-described sprinkler system, the fixing portion and the annular cavity member are provided with a snap flange, and the outer side wall of the front end of the outer cylinder is provided with a snap groove, and the fixing portion is embedded Between the snap flange and the snap groove.

In a preferred embodiment of the above spray system, the drum washing machine includes a door body, and the door body is provided with an observation window, and the observation window and the sealing window are provided when the door body is in a closed state. An interference seal is formed between the pads.

In a preferred embodiment of the above spray system, the annular cavity member and the outlet pipe are connected by a connection structure; or the annular cavity member is directly connected to the outlet pipe; or the annular cavity member and the The water pipe is made in one piece.

In a preferred embodiment of the above spray system, the spray member includes an injection tube and a spray nozzle that are connected to each other or integrally formed, the first end of the spray tube being in communication with the annular chamber member, the spray tube a second end passes through the sealing window mat; the spray nozzle is disposed at a second end of the spray tube for injecting wash water entering the annular chamber member into the inner barrel.

In a preferred embodiment of the above spray system, the spray nozzle has a guiding structure or a spray assembly for injecting wash water entering the annular chamber member obliquely into the inner cylinder; The assembly is for injecting wash water entering the annular cavity member into a uniform annular water curtain and spraying into the inner cylinder.

In a preferred embodiment of the above-described shower system, a plurality of injection members are arranged equidistantly or non-equally spaced on the annular chamber members.

The present invention also provides a drum washing machine comprising a washing machine body, the drum washing machine further comprising the above-described spray system.

In the technical solution of the present invention, the annular cavity member is separately provided in the outer region of the sealing window pad, and the annular cavity member is fixed to the outer side wall of the front end of the outer cylinder, while the injection member is disposed on the annular cavity member (the injection member is worn Through the sealing window mat), the purpose of spraying the washing water into the inner cylinder is achieved. Since the injection member is directly disposed in the annular cavity member, the structure of the injection member can be flexibly set to enhance the ejection effect of the wash water. Moreover, in the process of fixing the annular cavity member, the window pad fixing portion can also be fixed to the outer side wall of the front end of the outer cylinder at the same time (it can also be understood that the window pad fixing portion is fixed to the annular cavity member by the pressing force). Between the outer side wall of the front end of the outer cylinder). By this design, the sealing window mat and the annular cavity member can be fixed at the same time, which saves the manufacturing process, thereby greatly reducing the manufacturing cost of the washing machine. Further, as a preferred example, the ejection effect of the annular waterfall water flow is achieved by providing the guiding structure or the jetting assembly at the nozzle, which can quickly pass through the laundry, thereby greatly increasing the rinsing rate.

DRAWINGS

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings in which:

Figure 1 is a cross-sectional view of a drum washing machine in accordance with a first aspect of the present invention;

Figure 2 is an enlarged view of a portion A of Figure 1;

Figure 3 is an enlarged view of a portion B of Figure 1;

Figure 4 is a schematic view showing the spray effect of the drum washing machine in the first embodiment of the present invention;

Figure 5 is a cross-sectional view of the drum washing machine of the second aspect of the present invention;

Figure 6 is an enlarged view of a portion A of Figure 5;

Figure 7 is a perspective view of the front view of the drum washing machine of the second aspect of the present invention (for the sake of clarity, the front case of the case is omitted);

Figure 8 is a cross-sectional view taken along line B-B of Figure 7;

Figure 9 is a schematic view showing the spray effect of the drum washing machine in the second embodiment of the present invention;

Figure 10 is a perspective view of the front view of the drum washing machine of the third aspect of the present invention (for the sake of clarity, the front case of the case is omitted);

Figure 11 is a cross-sectional view taken along line A-A of Figure 10;

Figure 12 is an enlarged view of a portion B of Figure 11;

Figure 13 is a side elevational view of the portion C of Figure 12;

Figure 14 is a schematic view showing the spraying effect of the drum washing machine in the third embodiment of the present invention;

Figure 15 is a perspective view of the front view of the drum washing machine of the fourth aspect of the present invention (for the sake of clarity, the front case of the case is omitted);

Figure 16 is a cross-sectional view taken along line A-A of Figure 15;

Figure 17 is an enlarged view of a portion B of Figure 16;

Figure 18 is a plan view of a portion C of Figure 17;

Figure 19 is a schematic view showing the spray effect of the drum washing machine of the fourth aspect of the present invention.

In scenario 1, the list of tags in Figures 1-4:

1. Box body; 2. Outer tube; 21, front end of outer tube; 3. Inner tube; 4. Door body; 5. Sealed window mat; 6. Drain pump; 7. Drain pipe; 8. Circulating pump; Water pipe; 10, annular cavity; 101, injection port.

In scenario two, the list of tags in Figures 5-9:

1, box; 2, outer tube; 3, inner tube; 4, door body; 5, sealed window mat; 6, drain pump; 7, drain pipe; 8, circulation pump; 9, outlet pipe; Member; 101 injection member; 1011, injection tube; 1012, injection nozzle.

In scenario three, the list of tags in Figures 10-14:

1. Box; 11. Inner wall of the front panel of the box; 12, inner flange; 2, outer cylinder; 3, inner cylinder; 4. door body; 41, observation window; 5. sealing window mat; Fixed part; 511, snap-on protrusion; 6, drain pump; 7, drain pipe; 8, circulation pump; 9, outlet pipe; 10, annular cavity member; 101, injection member; 1011, injection pipe; ;M, bolts.

In scenario four, the list of tags in Figures 16-19:

1. Box body; 2, outer tube; 21, front end of outer tube; 3, inner tube; 4, door body; 41, observation window; 5, sealing window pad; 51, window pad fixing part; 6, drainage pump; Drainage pipe; 8, circulation pump; 9, outlet pipe; 10, annular cavity member; 100, snap flange; 101, injection member; 1011, injection pipe; 1012, injection nozzle; M, bolt.

detailed description

It should be understood by those skilled in the art that the embodiments of the present invention are merely used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention. For example, although the present invention has been described with an injection hole having a flat structure, the injection hole of the present invention may be an injection hole of any other configuration. Those skilled in the art can adjust it as needed to adapt to a specific application, and the adjusted technical solution will still fall within the protection scope of the present invention.

It should also be noted that in the description of the present invention, the terms "installation", "connected", and "connected" are to be understood broadly, and may be, for example, a fixed connection or a The connection is disassembled or connected integrally; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In scenario one:

As shown in FIG. 1, the drum washing machine of the present invention mainly comprises a casing 1, an outer cylinder 2, an inner cylinder 3, a door body 4, a sealing window mat 5, a drain pump 6, and a drain pipe 7. The outer cylinder 2 is fixedly disposed in the casing 1, the inner cylinder 3 is rotatably disposed in the outer cylinder 2, and the sealing window mat 5 is disposed between the casing 1 and the outer cylinder 2. The drain pump 6 and the drain pipe 7 are both disposed in the tank 1, and the water inlet of the drain pump 6 is connected to the inner bottom of the outer cylinder 2, the water outlet of the drain pump 6 is connected to one end of the drain pipe 7, and the drain pipe 7 is additionally connected. One end leads to the outside world. The drain pump 6 can discharge the washing water in the outer cylinder 2 through the drain pipe 7.

In addition, those skilled in the art can understand that when each portion of the drain pipe 7 is lower than the inner bottom end of the outer cylinder 2, those skilled in the art can also omit the drain pump 6 and drain the pump 6 as needed. Replace with a shut-off valve. When the drum washing machine needs to drain, the shut-off valve is opened, so that the washing water in the outer cylinder 2 is automatically discharged from the drain pipe 7 by its own gravity.

Referring to FIG. 1 , the front end of the casing 1 (the left side of the casing 1 in FIG. 1 ) is provided with a tank mouth (not shown), and the front end of the outer cylinder 2 (the left side of the outer cylinder 2 in FIG. 1 ) is provided with The outer cylinder mouth (not shown), the front end of the inner cylinder 3 (the left side of the inner cylinder 3 in Fig. 1) is provided with an inner cylinder mouth (not shown). One end of the sealing window mat 5 is sealingly connected to the edge of the outer cylinder opening, and the other end of the sealing window mat 5 is sealingly connected to the edge of the inner cylinder opening. The door body 4 is pivotally disposed on the casing 1, and the door body can be closed when the door body 4 is closed to prevent the washing water in the outer cylinder 2 from overflowing from the tank body.

1 to 3, wherein Fig. 2 is an enlarged view of a portion of Fig. 1A; and Fig. 3 is an enlarged view of a portion of Fig. 1B. The drum washing machine of the present invention further includes a sprinkler system, which mainly includes a circulation pump 8, an outlet pipe 9, an annular chamber 10 disposed at the front end 21 of the outer cylinder, and an annular opening 10 provided with an injection port 101. The circulation pump 8 is preferably arranged in the housing 1 and is fixedly connected to the housing 1. Alternatively, the person skilled in the art can also fixedly connect the circulation pump 8 to the outer cylinder 1 as needed. The water inlet of the circulation pump 8 is passed to the inside of the outer cylinder 2, and preferably, the water inlet of the circulation pump 8 is connected to the bottom end of the outer cylinder 2 through the inlet pipe. Alternatively, the person skilled in the art can also connect the inlet pipe to any position of the outer cylinder 2 under the condition that the inlet pipe is located below the liquid level in the outer cylinder 2 as needed. The water outlet of the circulation pump 8 communicates with the annular water passage 10 through the outlet pipe 9. When the sprinkler system of the present invention is in operation, as shown by the arrow in Fig. 1, the circulation pump 8 feeds the washing water pump in the outer cylinder 2 to the annular chamber 10, and the washing water entering the annular chamber 10 is sprayed into the inside through the injection port 101. In the tube 3. When the inner cylinder 3 is operated at a high speed, the water jet ejected from the ejection port 101 can quickly pass through the laundry and enter the outer cylinder 2 under the action of centrifugal force and gravity.

As an example, the annular cavity 10 and the outlet pipe 9 of the present invention may be connected by a connection structure (such as a connecting hose, a connecting pipe, etc.), or may be directly connected (ie, the water outlet pipe 9 may be directly connected without the connection structure). It is also possible to integrally form the annular chamber 10 with the outlet pipe 9 in communication with the annular chamber 10. Those skilled in the art can flexibly select a suitable connection mode according to actual design requirements, so that the circulation pump 8 can pump the wash water into the annular chamber 10 through the outlet pipe 9.

With continued reference to FIGS. 2 and 3, as an example, the ejection opening 101 may be a slit structure formed in the annular chamber 10, and since the ejection opening 101 is a slit structure formed in the annular chamber 10, the present technology A plurality of injection ports 101 may be disposed on the annular cavity 10 at equal or non-equal intervals according to actual design requirements. Alternatively, an annular narrow slit structure may be provided (ie, a first end communication may be provided along the circumference of the annular cavity 10). Narrow seam structure), so that the annular water curtain spray effect can be achieved.

As an example, the injection port 101 has a guiding structure (e.g., the injection port 101 is provided in a sloped shape) for injecting wash water entering the annular chamber 10 obliquely into the inner cylinder 3. In addition to this, the injection port 101 may further have a jetting assembly for injecting the washing water entering the annular chamber 10 into a uniform annular water curtain and then injecting into the inner cylinder 3. It will be readily understood by those skilled in the art that the spray assembly can be reasonably designed according to the shape of the injection port 101, and is intended to be sprayed into the inner cylinder 3 after the wash water entering the annular chamber 10 is formed into a uniform annular water curtain.

Preferably, as shown in FIG. 1, the annular chamber 10 of the present invention is located in the inner region of the sealing window mat 5. In this way, the washing water entering the annular chamber 10 can be directly sprayed into the inner cylinder 3 by means of the injection port 101, and the sealing window pad 5 does not need to be modified (if no structure such as a through hole is provided in the sealing window pad 5) Thus, the sealing of the sealing window mat 5 is ensured.

Referring to Fig. 4, Fig. 4 is a schematic view showing the spray effect of the drum washing machine of the present invention. The injection ports 101 in the illustration are disposed at equal intervals on the annular chamber 10, and the spraying effect of the fan-shaped water flow or the waterfall-like water flow as shown in FIG. 4 is achieved by providing the guide structure or the injection assembly at the injection port 101, and those skilled in the art also The size and number of the ejection openings 101 can be selected according to actual design needs.

It should be noted that the drain pump 6 and/or the circulation pump 8 of the present invention may be any feasible pump such as a gear pump, a vane pump, a peristaltic pump, a centrifugal pump or the like.

Those skilled in the art will appreciate that in another possible embodiment of the invention, the drain pump 6 and the circulation pump 8 can be replaced by one pump. As an example 1, the drain pump 6 is omitted, the water outlet of the circulation pump 8 is communicated with the outlet pipe 9 and the drain pipe 7, respectively, and the outlet pipe 9 is provided with a first shut-off valve for selectively opening or closing it. The drain pipe 7 is configured with a second shutoff valve for selectively opening or closing it. When the drum washing machine performs the spraying operation, the first shutoff valve is opened and the second shutoff valve is closed; when the drum washing machine performs the draining operation, the first shutoff valve is closed and the second shutoff valve is opened. As an example two, the drain pump 6 is omitted, and a three-way valve is provided for the water outlet of the circulation pump 8, so that the water outlet of the circulation pump 8 can be selectively communicated with the water outlet pipe 9 or the drain pipe 7 by means of the three-way valve. Further, those skilled in the art can also enable the three-way valve to simultaneously block the communication between the circulation pump 8 and the outlet pipe 9 and the communication between the circulation pump 8 and the drain pipe 7 as needed.

As described above, the present invention provides the annular chamber 10 separately at the front end 21 of the outer cylinder, and the injection port 101 is provided on the annular chamber 10. The injection opening 101 is preferably a slit structure formed on the annular chamber 10, which is a conventional drum washing machine. The structural changes are small and there is no need to separately set the spraying device, thereby greatly reducing the manufacturing cost of the washing machine. Further, as a preferred example, the annular chamber 10 is disposed in the inner region of the sealing window mat 5 to ensure the sealing of the sealing window mat 5. Further, at the injection port 101 of the present invention, the ejection effect of the annular waterfall water flow is realized by providing the guide structure or the jetting assembly, which can quickly pass through the laundry, thereby greatly increasing the rinsing rate.

Further, the present invention provides a drum washing machine including a washing machine body, and the above-described spray system for a drum washing machine. For specific embodiments of the drum washing machine, refer to the above description, and details are not described herein again.

In scenario two:

As shown in FIG. 5, the drum washing machine of the present invention mainly includes a casing 1, an outer cylinder 2, an inner cylinder 3, a door body 4, a sealing window mat 5, a drain pump 6, and a drain pipe 7. The outer cylinder 2 is fixedly disposed in the casing 1, the inner cylinder 3 is rotatably disposed in the outer cylinder 2, and the sealing window mat 5 is disposed between the casing 1 and the outer cylinder 2. The drain pump 6 and the drain pipe 7 are both disposed in the tank 1, and the water inlet of the drain pump 6 is connected to the inner bottom of the outer cylinder 2, the water outlet of the drain pump 6 is connected to one end of the drain pipe 7, and the drain pipe 7 is additionally connected. One end leads to the outside world. The drain pump 6 can discharge the washing water in the outer cylinder 2 through the drain pipe 7.

In addition, those skilled in the art can understand that when each portion of the drain pipe 7 is lower than the inner bottom end of the outer cylinder 2, those skilled in the art can also omit the drain pump 6 and drain the pump 6 as needed. Replace with a shut-off valve. When the drum washing machine needs to drain, the shut-off valve is opened, so that the washing water in the outer cylinder 2 is automatically discharged from the drain pipe 7 by its own gravity.

Referring to FIG. 5, the front end of the casing 1 (the left side of the casing 1 in FIG. 5) is provided with a tank mouth (not shown), and the front end of the outer cylinder 2 (the left side of the outer cylinder 2 in FIG. 5) is provided with The outer cylinder mouth (not shown), the front end of the inner cylinder 3 (the left side of the inner cylinder 3 in Fig. 5) is provided with an inner cylinder mouth (not shown). One end of the sealing window mat 5 is sealingly connected to the edge of the outer cylinder opening, and the other end of the sealing window mat 5 is sealingly connected to the edge of the inner cylinder opening. The door body 4 is pivotally disposed on the casing 1, and the door body can be closed when the door body 4 is closed to prevent the washing water in the outer cylinder 2 from overflowing from the tank body.

As shown in Fig. 5 and Fig. 6, Fig. 6 is an enlarged view of a portion of Fig. 5A. The drum washing machine of the present invention further includes a sprinkler system that mainly includes a circulation pump 8, an outlet pipe 9, and an annular cavity member 10 between the casing 1 and the outer cylinder 2. As an example, the annular cavity member 10 is located at the front end of the outer cylinder 2 and the outer region of the sealing window mat 3, and the annular cavity member 10 may be fixed to the front end of the outer cylinder 2, or the person skilled in the art may select other feasible ways to fix the annular cavity member 10 . Therein, the annular chamber member 10 is provided with an injection member 101 through which the injection member 10 passes. The circulation pump 8 is preferably arranged in the housing 1 and is fixedly connected to the housing 1. Alternatively, the person skilled in the art can also fixedly connect the circulation pump 8 to the outer cylinder 1 as needed. The water inlet of the circulation pump 8 is passed to the inside of the outer cylinder 2, and preferably, the water inlet of the circulation pump 8 is connected to the bottom end of the outer cylinder 2 through the inlet pipe. Alternatively, the person skilled in the art can also connect the inlet pipe to any position of the outer cylinder 2 under the condition that the inlet pipe is located below the liquid level in the outer cylinder 2 as needed. The water outlet of the circulation pump 8 communicates with the annular water passage 10 through the outlet pipe 9. When the sprinkler system of the present invention is operated, as shown by the arrow in Fig. 5, the circulation pump 8 supplies the washing water pump in the outer cylinder 2 to the annular chamber member 10, and the washing water entering the annular chamber member 10 is ejected by the injection member 101. Into the inner cylinder 3. When the inner cylinder 3 is operated at a high speed, the water flow ejected from the injection member 101 can quickly pass through the laundry and enter the outer cylinder 2 under the action of centrifugal force and gravity.

As an example, the annular cavity member 10 of the present invention and the water outlet pipe 9 may be connected by a connection structure (such as a connecting hose, a connecting hard pipe, etc.), or may be directly connected (ie, the water outlet pipe may be directly connected without the connection structure). 9 is in communication with the annular chamber member 10), and the annular chamber member 10 can also be integrally formed with the outlet pipe 9. Those skilled in the art can flexibly select a suitable connection manner according to actual design requirements, so that the circulation pump 8 can pump the wash water into the annular cavity member 10 through the outlet pipe 9.

With continued reference to Fig. 6, the structure of the injection member 101 is clearly shown in Fig. 6. The injection member 101 of the present invention includes an injection pipe 1011 and an injection nozzle 1012 which are connected to each other or integrally formed, the first end of the injection pipe 1011 is in communication with the annular cavity member 10, and the second end of the injection pipe 1011 passes through the sealing window pad 5, A spray nozzle 1012 is provided at the second end of the spray pipe 1011 for injecting wash water entering the annular cavity member 10 into the inner cylinder 3. It will be understood by those skilled in the art that one way for the injection pipe 1011 to pass through the sealing window pad 5 is to provide a through hole in the sealing window pad 5, let the injection pipe 1011 pass through the through hole, and make the injection pipe 1011 After passing through the through hole, a sealing connection is formed between the injection pipe 1011 and the through hole to ensure the sealing effect of the sealing window mat.

As an example, the spray nozzle 1012 has a guiding structure for injecting wash water entering the annular cavity member 10 obliquely into the inner cylinder 3. The spray nozzle 1012 may also be provided with a jetting assembly for injecting wash water entering the annular cavity member 10 into a uniform annular water curtain and then injecting into the inner cylinder 3. It will be readily understood by those skilled in the art that the jetting assembly can be reasonably designed according to the shape of the spray nozzle 1012, and is intended to be sprayed into the inner cylinder 3 after the wash water entering the annular cavity member 10 is formed into a uniform annular water curtain.

7 and 8, FIG. 7 is a perspective view of the drum washing machine of the present invention in a front view direction (the front case of the case is omitted for the sake of clarity); and FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7 and 8 clearly show the injection member 101 disposed at equal intervals on the annular chamber member 10. It can be seen that the wash water entering the annular chamber member 10 is sprayed to the uniform annular water curtain by the injection member 101. In the inner cylinder 3. This jetting effect can quickly pass through the garment, greatly increasing the rinsing rate. Obviously, the arrangement of the injection member 101 at equal intervals in the annular cavity member 10 is only a preferred embodiment of the present invention, and those skilled in the art can set a plurality of non-equally spaced on the annular cavity member 10 according to actual design requirements. The ejection member 101 is disposed, and the ejection members 101 are disposed at equal intervals or at non-equal intervals, and the number of the ejection members 101 can be flexibly selected, and the number of the ejection members 101 is not limited herein.

In order to further explain the spraying effect of the drum washing machine of the present invention, reference is made to Fig. 9, which is a schematic view of the shower effect of the drum washing machine of the present invention. The ejection members 101 in the illustration are disposed at equal intervals on the annular cavity member 10, and the ejection effect of the fan-shaped water flow or the waterfall-like water flow as shown in FIG. 9 is achieved by providing the guide structure or the injection assembly at the injection member 101, those skilled in the art. It is also possible to select the size and number of the ejection members 101 according to actual design needs.

It should be noted that the drain pump 6 and/or the circulation pump 8 of the present invention may be any feasible pump such as a gear pump, a vane pump, a peristaltic pump, a centrifugal pump or the like.

Those skilled in the art will appreciate that in another possible embodiment of the invention, the drain pump 6 and the circulation pump 8 can be replaced by one pump. As an example 1, the drain pump 6 is omitted, the water outlet of the circulation pump 8 is communicated with the outlet pipe 9 and the drain pipe 7, respectively, and the outlet pipe 9 is provided with a first shut-off valve for selectively opening or closing it. The drain pipe 7 is configured with a second shutoff valve for selectively opening or closing it. When the drum washing machine performs the spraying operation, the first shutoff valve is opened and the second shutoff valve is closed; when the drum washing machine performs the draining operation, the first shutoff valve is closed and the second shutoff valve is opened. As an example two, the drain pump 6 is omitted, and a three-way valve is provided for the water outlet of the circulation pump 8, so that the water outlet of the circulation pump 8 can be selectively communicated with the water outlet pipe 9 or the drain pipe 7 by means of the three-way valve. Further, those skilled in the art can also enable the three-way valve to simultaneously block the communication between the circulation pump 8 and the outlet pipe 9 and the communication between the circulation pump 8 and the drain pipe 7 as needed.

As described above, the present invention separately provides the annular cavity member 10 in the outer region of the sealing window pad 5, and the ejection member 101 (the ejection member 101 passes through the sealing window pad 5) is disposed on the annular cavity member 10 to realize the inward cylinder 3 Spray the purpose of washing water. Since the injection member 101 is directly disposed in the annular cavity member 10, the structure of the injection member 101 can be flexibly set to enhance the ejection effect of the wash water, and the processing is simple. Also, since the ejection member 101 is directly disposed in the annular cavity member 10, the structural change to the drum washing machine is small, and the mounting is simple, and it is only necessary to pass the ejection member 101 through the sealing window pad 5. Thereby, the manufacturing cost of the washing machine is greatly reduced. Further, as a preferred example, the ejection nozzle 1012 achieves a jetting effect of the annular waterfall water flow by providing a guiding structure or an ejection assembly, which can quickly pass through the laundry, thereby greatly increasing the rinsing rate.

Further, the present invention provides a drum washing machine including a washing machine body, and the above-described spray system for a drum washing machine. For specific embodiments of the drum washing machine, refer to the above description, and details are not described herein again.

In option three:

As shown in Fig. 10, the drum washing machine of the present invention mainly comprises a casing 1, an outer cylinder 2, an inner cylinder 3, a door body 4 (see Fig. 11), a sealing window mat 5, a drain pump 6, and a drain pipe 7. The outer cylinder 2 is fixedly disposed in the casing 1, the inner cylinder 3 is rotatably disposed in the outer cylinder 2, and the sealing window mat 5 is disposed between the casing 1 and the outer cylinder 2. The drain pump 6 and the drain pipe 7 are both disposed in the tank 1, and the water inlet of the drain pump 6 is connected to the inner bottom of the outer cylinder 2, the water outlet of the drain pump 6 is connected to one end of the drain pipe 7, and the drain pipe 7 is additionally connected. One end leads to the outside world. The drain pump 6 can discharge the washing water in the outer cylinder 2 through the drain pipe 7.

In addition, those skilled in the art can understand that when each portion of the drain pipe 7 is lower than the inner bottom end of the outer cylinder 2, those skilled in the art can also omit the drain pump 6 and drain the pump 6 as needed. Replace with a shut-off valve. When the drum washing machine needs to drain, the shut-off valve is opened, so that the washing water in the outer cylinder 2 is automatically discharged from the drain pipe 7 by its own gravity.

Referring to FIG. 10, the front end of the casing 1 (the left side of the casing 1 in FIG. 10) is provided with a tank mouth (not shown), and the front end of the outer cylinder 2 (the left side of the outer cylinder 2 in FIG. 10) is provided with The outer cylinder mouth (not shown), the front end of the inner cylinder 3 (the left side of the inner cylinder 3 in Fig. 10) is provided with an inner cylinder mouth (not shown). One end of the sealing window mat 5 is sealingly connected to the edge of the outer cylinder opening, and the other end of the sealing window mat 5 is sealingly connected to the edge of the inner cylinder opening. The door body 4 is pivotally disposed on the casing 1, and the door body can be closed when the door body 4 is closed to prevent the washing water in the outer cylinder 2 from overflowing from the tank body.

10 is a cross-sectional view taken along the line A-A in FIG. 10; FIG. 12 is an enlarged view of a portion B in FIG. 11; and FIG. 13 is an enlarged view of a portion C in FIG. The drum washing machine of the present invention further includes a sprinkler system that mainly includes a circulation pump 8, an outlet pipe 9, and an annular cavity member 10 located in an outer region of the sealing window mat 5. Specifically, the case 1 includes a front panel, and the case opening is formed on the front plate, and the annular cavity member 10 is fixed to the inner wall 11 of the front panel of the case (the annular cavity member 10 is clearly shown in FIG. The structure of the inner wall 11 of the front panel of the body). Therein, the annular chamber member 10 is provided with an injection member 101 through which the injection member 10 passes. The circulation pump 8 is preferably arranged in the housing 1 and is fixedly connected to the housing 1. Alternatively, the person skilled in the art can also fixedly connect the circulation pump 8 to the outer cylinder 1 as needed. The water inlet of the circulation pump 8 is passed to the inside of the outer cylinder 2, and preferably, the water inlet of the circulation pump 8 is connected to the bottom end of the outer cylinder 2 through the inlet pipe. Alternatively, the person skilled in the art can also connect the inlet pipe to any position of the outer cylinder 2 under the condition that the inlet pipe is located below the liquid level in the outer cylinder 2 as needed. The water outlet of the circulation pump 8 communicates with the annular chamber member 10 through the outlet pipe 9. When the sprinkler system of the present invention is operated, as shown by the arrow in Fig. 10, the circulation pump 8 supplies the washing water pump in the outer cylinder 2 to the annular chamber member 10, and the washing water entering the annular chamber member 10 is ejected by the injection member 101. Into the inner cylinder 3. When the inner cylinder 3 is operated at a high speed, the water flow ejected from the injection member 101 can quickly pass through the laundry and enter the outer cylinder 2 under the action of centrifugal force and gravity.

Referring to FIG. 12 and FIG. 13, as a preferred embodiment, the inner wall 11 of the front panel of the cabinet has an inner flange 12, and the annular cavity member 10 passes through a fixing device (in the embodiment, a bolt M, and the fixing device can also Any feasible structure, such as snaps, bonds, screws, etc., which is not limited herein, is fixedly mounted to the inner flange 12. Further, the sealing window mat 5 includes a window mat fixing portion 51 that fixes the fixing portion 51 to the inner flap 12 by means of a bolt M. Specifically, the window pad fixing portion 51 is placed between the annular cavity member 10 and the inner flange 12, and then the annular cavity member 10 is fixed to the inner flange 12 by bolts. Since the window pad fixing portion 51 is placed between the annular cavity member 10 and the inner flange 12, in the process of fixing the annular cavity member 10, the window pad fixing portion 51 can also be fixed to the inner flange 12 at the same time ( It can also be understood that the window pad fixing portion 51 is fixed between the annular cavity member 10 and the inturned edge 12 by the pressing force. By this design, the sealing window pad 5 and the annular cavity member 10 can be fixed at the same time, which saves the manufacturing process.

Preferably, in order to prevent the window pad fixing portion 51 from sliding between the annular cavity member 10 and the inner flange 12, the snap-on engaging projection 511 may be provided on the window pad fixing portion 51, correspondingly in the annular cavity member. The outer wall of the outer wall or the inner flange 12 is disposed on the engaging groove of the engaging protrusion 511. When the window pad fixing portion 51 is embedded between the annular cavity member 10 and the inner wall 11 of the front panel of the box, the card is engaged. The projection 511 is received in the catching groove to restrict the window pad fixing portion from coming out between the annular cavity member 10 and the inner wall 11 of the front panel of the case. It is easily understood by those skilled in the art that the snap-in protrusions can also be disposed on the annular cavity member 10, and the corresponding snap-fit recesses are disposed on the window pad fixing portion 5, which can achieve the same technical effect, and the present invention is not correct. This is specifically defined, and those skilled in the art can select an appropriate method according to actual design needs.

As an example, the door opening 4, that is, the door body 4 is provided with an observation window 41, and in the case where the observation window 41 (ie, the door body 4) is in a closed state, an interference seal is formed between the observation window 41 and the sealing window pad 5. Part N, thereby further ensuring the sealing effect of the sealing window mat 5.

As an example, the annular cavity member 10 of the present invention and the water outlet pipe 9 may be connected by a connection structure (such as a connecting hose, a connecting hard pipe, etc.), or may be directly connected (ie, the water outlet pipe may be directly connected without the connection structure). 9 is in communication with the annular chamber member 10), and the annular chamber member 10 can also be integrally formed with the outlet pipe 9. Those skilled in the art can flexibly select a suitable connection manner according to actual design requirements, so that the circulation pump 8 can pump the wash water into the annular cavity member 10 through the outlet pipe 9.

Referring to Figures 11 and 12, the structure of the injection member 101 is clearly shown in Figures 11 and 12. The injection member 101 of the present invention includes an injection pipe 1011 and a spray nozzle 1012. The first end of the injection pipe 1011 communicates with the annular cavity member 10, the second end of the injection pipe 1011 passes through the sealing window pad 5, and the injection nozzle 1012 is disposed in the injection pipe. The second end of the 1011 is for injecting wash water entering the annular chamber member 10 into the inner cylinder 3. It will be understood by those skilled in the art that one way for the injection pipe 1011 to pass through the sealing window pad 5 is to provide a through hole in the sealing window pad 5, let the injection pipe 1011 pass through the through hole, and make the injection pipe 1011 After passing through the through hole, a sealing connection is formed between the injection pipe 1011 and the through hole to ensure the sealing effect of the sealing window mat.

As an example, the spray nozzle 1012 has a guiding structure for injecting wash water entering the annular cavity member 10 obliquely into the inner cylinder 3. The spray nozzle 1012 may also be provided with a spray assembly for injecting wash water entering the annular chamber member 10 into a uniform annular water curtain and then injecting into the inner cylinder 3. It will be readily understood by those skilled in the art that the jetting assembly can be reasonably designed according to the shape of the spray nozzle 1012, and is intended to be sprayed into the inner cylinder 3 after the wash water entering the annular cavity member 10 is formed into a uniform annular water curtain.

Referring back to Fig. 10, the ejection member 101 disposed equidistantly on the annular cavity member 10 is clearly shown in Fig. 10, and it can be seen that the washing water entering the annular cavity member 10 is formed by the ejection member 101 to form a uniform annular water curtain. It is sprayed into the inner cylinder 3. This jetting effect can quickly pass through the garment, greatly increasing the rinsing rate. Obviously, the arrangement of the injection member 101 at equal intervals in the annular cavity member 10 is only a preferred embodiment of the present invention, and those skilled in the art can set a plurality of non-equally spaced on the annular cavity member 10 according to actual design requirements. The ejection member 101 is disposed, and the ejection members 101 are disposed at equal intervals or at non-equal intervals, and the number of the ejection members 101 can be flexibly selected, and the number of the ejection members 101 is not limited herein.

In order to further explain the spraying effect of the drum washing machine of the present invention, reference is made to Fig. 14, which is a schematic view of the shower effect of the drum washing machine of the present invention. The ejection members 101 in the illustration are disposed equidistantly on the annular cavity member 10, and the ejection effect of the fan-shaped water flow or the waterfall-like water flow as shown in FIG. 14 is achieved by providing the guiding structure or the ejection assembly at the ejection member 101, those skilled in the art. It is also possible to select the size and number of the ejection members 101 according to actual design needs.

It should be noted that the drain pump 6 and/or the circulation pump 8 of the present invention may be any feasible pump such as a gear pump, a vane pump, a peristaltic pump, a centrifugal pump or the like.

Those skilled in the art will appreciate that in another possible embodiment of the invention, the drain pump 6 and the circulation pump 8 can be replaced by one pump. As an example 1, the drain pump 6 is omitted, the water outlet of the circulation pump 8 is communicated with the outlet pipe 9 and the drain pipe 7, respectively, and the outlet pipe 9 is provided with a first shut-off valve for selectively opening or closing it. The drain pipe 7 is configured with a second shutoff valve for selectively opening or closing it. When the drum washing machine performs the spraying operation, the first shutoff valve is opened and the second shutoff valve is closed; when the drum washing machine performs the draining operation, the first shutoff valve is closed and the second shutoff valve is opened. As an example two, the drain pump 6 is omitted, and a three-way valve is provided for the water outlet of the circulation pump 8, so that the water outlet of the circulation pump 8 can be selectively communicated with the water outlet pipe 9 or the drain pipe 7 by means of the three-way valve. Further, those skilled in the art can also enable the three-way valve to simultaneously block the communication between the circulation pump 8 and the outlet pipe 9 and the communication between the circulation pump 8 and the drain pipe 7 as needed.

As described above, the present invention separately provides the annular cavity member 10 in the outer region of the sealing window mat 5, and fixes the annular cavity member 10 to the inner wall 11 of the front panel of the casing, while the ejection member 101 is disposed on the annular cavity member 10 (this The injection member 101 passes through the sealing window mat 5) to achieve the purpose of spraying the washing water into the inner cylinder 3. Since the injection member 101 is directly disposed at the annular cavity member 10, the structure of the injection member 101 can be flexibly set to enhance the ejection effect of the wash water. Moreover, in the process of fixing the annular cavity member 10, the window pad fixing portion 51 can also be fixed to the inner flange 12 at the same time (it can also be understood that the window pad fixing portion 51 is fixed to the ring under the action of the pressing force. Between the cavity member 10 and the inturned edge 12). By this design, the sealing window pad 5 and the annular cavity member 10 can be fixed at the same time, which saves the manufacturing process, thereby greatly reducing the manufacturing cost of the washing machine. Further, as a preferred example, the ejection nozzle 1012 achieves a jetting effect of the annular waterfall water flow by providing a guiding structure or an ejection assembly, which can quickly pass through the laundry, thereby greatly increasing the rinsing rate.

The present invention also provides a drum washing machine comprising a washing machine body, and the above-described spray system for a drum washing machine. For specific embodiments of the drum washing machine, refer to the above description, and details are not described herein again.

In option four:

As shown in Fig. 15, the drum washing machine of the present invention mainly comprises a casing 1, an outer cylinder 2, an inner cylinder 3, a door body 4, a sealing window mat 5, a drain pump 6, and a drain pipe 7. The outer cylinder 2 is fixedly disposed in the casing 1, the inner cylinder 3 is rotatably disposed in the outer cylinder 2, and the sealing window mat 5 is disposed between the casing 1 and the outer cylinder 2. The drain pump 6 and the drain pipe 7 are both disposed in the tank 1, and the water inlet of the drain pump 6 is connected to the inner bottom of the outer cylinder 2, the water outlet of the drain pump 6 is connected to one end of the drain pipe 7, and the drain pipe 7 is additionally connected. One end leads to the outside world. The drain pump 6 can discharge the washing water in the outer cylinder 2 through the drain pipe 7.

In addition, those skilled in the art can understand that when each portion of the drain pipe 7 is lower than the inner bottom end of the outer cylinder 2, those skilled in the art can also omit the drain pump 6 and drain the pump 6 as needed. Replace with a shut-off valve. When the drum washing machine needs to drain, the shut-off valve is opened, so that the washing water in the outer cylinder 2 is automatically discharged from the drain pipe 7 by its own gravity.

Continuing to refer to Fig. 15, the front end of the casing 1 (the left side of the casing 1 in Fig. 15) is provided with a tank opening (not shown), and the front end of the outer cylinder 2 (the left side of the outer cylinder 2 in Fig. 15) is provided The outer cylinder mouth (not shown), the front end of the inner cylinder 3 (the left side of the inner cylinder 3 in Fig. 15) is provided with an inner cylinder mouth (not shown). One end of the sealing window mat 5 is sealingly connected to the edge of the outer cylinder opening, and the other end of the sealing window mat 5 is sealingly connected to the edge of the inner cylinder opening. The door body 4 is pivotally disposed on the casing 1, and the door body can be closed when the door body 4 is closed to prevent the washing water in the outer cylinder 2 from overflowing from the tank body.

15 is a cross-sectional view taken along the line A-A in FIG. 15, FIG. 17 is an enlarged view of a portion B in FIG. 16, and FIG. 18 is an enlarged view of a portion C in FIG. The drum washing machine of the present invention further includes a sprinkler system mainly including a circulation pump 8, an outlet pipe 9, and an annular cavity member 10 located in an outer region of the sealing window pad 5, and the annular cavity member 10 is fixed to the front end 21 of the outer cylinder. Outer side wall. Therein, the annular chamber member 10 is provided with an injection member 101 through which the injection member 10 passes. The circulation pump 8 is preferably arranged in the housing 1 and is fixedly connected to the housing 1. Alternatively, the person skilled in the art can also fixedly connect the circulation pump 8 to the outer cylinder 1 as needed. The water inlet of the circulation pump 8 is passed to the inside of the outer cylinder 2, and preferably, the water inlet of the circulation pump 8 is connected to the bottom end of the outer cylinder 2 through the inlet pipe. Alternatively, the person skilled in the art can also connect the inlet pipe to any position of the outer cylinder 2 under the condition that the inlet pipe is located below the liquid level in the outer cylinder 2 as needed. The water outlet of the circulation pump 8 communicates with the annular chamber member 10 through the outlet pipe 9. When the sprinkler system of the present invention is in operation, as shown by the arrow in Fig. 15, the circulation pump 8 supplies the washing water pump in the outer cylinder 2 to the annular chamber member 10, and the washing water entering the annular chamber member 10 is ejected by the injection member 101. Into the inner cylinder 3. When the inner cylinder 3 is operated at a high speed, the water flow ejected from the injection member 101 can quickly pass through the laundry and enter the outer cylinder 2 under the action of centrifugal force and gravity.

Referring to FIG. 17 and FIG. 18, the annular cavity member 10 is passed through a fastening device (the bolt M in this embodiment, and the fastening device can also adopt any feasible structure such as snapping, bonding, screw, etc., and the present invention is not fastening. The device is fixedly mounted on the outer side wall of the front end 21 of the outer cylinder. Further, the sealing window pad 5 includes a window pad fixing portion 51 that fixes the window pad fixing portion 51 to the outer side wall of the outer tube front end 21 by means of a bolt M. Specifically, the window pad fixing portion 51 is fitted between the annular cavity member 10 and the outer side wall of the outer cylinder front end 21, and then the annular cavity member 10 is fixed to the outer side wall of the outer cylinder front end 21 by bolts. Since the window pad fixing portion 51 is embedded between the annular cavity member 10 and the outer side wall of the outer cylinder front end 21, in the process of fixing the annular cavity member 10, the window pad fixing portion 51 can also be fixed to the outer cylinder at the same time. The outer side wall of the front end 21 (it can also be understood that the window pad fixing portion 51 is fixed between the annular cavity member 10 and the outer side wall of the outer tube front end 21 by a pressing force). By this design, the sealing window pad 5 and the annular cavity member 10 can be fixed at the same time, which saves the manufacturing process.

Preferably, in order to prevent the window pad fixing portion 51 from sliding between the annular cavity member 10 and the outer side wall of the outer cylinder front end 21, a snap flange 100 may be provided on the annular cavity member 10, correspondingly at the outer side wall of the front end of the outer cylinder A card slot is provided, and the window pad fixing portion 51 is embedded between the latching flange and the latching groove to prevent the window pad fixing portion 51 from slipping. It is easy for those skilled in the art to understand that the window pad fixing portion 51 can adopt other suitable embedding manners, and the present invention does not specifically limit the present invention. Those skilled in the art can select an appropriate manner according to actual design needs.

As an example, the door opening 4, that is, the door body 4 is provided with an observation window 41. When the observation window 41, that is, the door body 4 is in a closed state, an interference seal portion N is formed between the observation window 41 and the sealing window pad 5. Thereby, the sealing effect of the sealing window mat 5 is further ensured.

As an example, the annular cavity member 10 of the present invention and the water outlet pipe 9 may be connected by a connection structure (such as a connecting hose, a connecting hard pipe, etc.), or may be directly connected (ie, the water outlet pipe may be directly connected without the connection structure). 9 is in communication with the annular chamber member 10), and the annular chamber member 10 can also be integrally formed with the outlet pipe 9. Those skilled in the art can flexibly select a suitable connection manner according to actual design requirements, so that the circulation pump 8 can pump the wash water into the annular cavity member 10 through the outlet pipe 9.

Referring to Figures 16 and 17, the structure of the injection member 101 is clearly shown in Figures 16 and 17. The injection member 101 of the present invention includes an injection pipe 1011 and an injection nozzle 1012 which are connected to each other or integrally formed, the first end of the injection pipe 1011 is in communication with the annular cavity member 10, and the second end of the injection pipe 1011 passes through the sealing window pad 5, A spray nozzle 1012 is provided at the second end of the spray pipe 1011 for injecting wash water entering the annular cavity member 10 into the inner cylinder 3. It will be understood by those skilled in the art that one way for the injection pipe 1011 to pass through the sealing window pad 5 is to provide a through hole in the sealing window pad 5, let the injection pipe 1011 pass through the through hole, and make the injection pipe 1011 After passing through the through hole, a sealing connection is formed between the injection pipe 1011 and the through hole to ensure the sealing effect of the sealing window mat.

As an example, the spray nozzle 1012 has a guiding structure for injecting wash water entering the annular cavity member 10 obliquely into the inner cylinder 3. The spray nozzle 1012 may also be provided with a jetting assembly for injecting wash water entering the annular cavity member 10 into a uniform annular water curtain and then injecting into the inner cylinder 3. It will be readily understood by those skilled in the art that the jetting assembly can be reasonably designed according to the shape of the spray nozzle 1012, and is intended to be sprayed into the inner cylinder 3 after the wash water entering the annular cavity member 10 is formed into a uniform annular water curtain.

Referring back to Fig. 15, the ejection member 101 disposed equidistantly on the annular cavity member 10 is clearly shown in Fig. 15, and it can be seen that the wash water entering the annular cavity member 10 is formed by the ejection member 101 to form a uniform annular water curtain. It is sprayed into the inner cylinder 3. This squirt effect can quickly pass through the garment, greatly increasing the rinsing rate. Obviously, the arrangement of the injection member 101 at equal intervals in the annular cavity member 10 is only a preferred embodiment of the present invention, and those skilled in the art can set a plurality of non-equally spaced on the annular cavity member 10 according to actual design requirements. The ejection member 101 is disposed, and the ejection members 101 are disposed at equal intervals or at non-equal intervals, and the number of the ejection members 101 can be flexibly selected, and the number of the ejection members 101 is not limited herein.

In order to further explain the spraying effect of the drum washing machine of the present invention, reference is made to Fig. 19, which is a schematic view showing the spraying effect of the drum washing machine of the present invention. The ejection members 101 in the illustration are disposed at equal intervals on the annular cavity member 10, and the ejection effect of the fan-shaped water flow or the waterfall-like water flow as shown in FIG. 19 is achieved by providing the guide structure or the injection assembly at the injection member 101, those skilled in the art. It is also possible to select the size and number of the ejection members 101 according to actual design needs.

It should be noted that the drain pump 6 and/or the circulation pump 8 of the present invention may be any feasible pump such as a gear pump, a vane pump, a peristaltic pump, a centrifugal pump or the like.

Those skilled in the art will appreciate that in another possible embodiment of the invention, the drain pump 6 and the circulation pump 8 can be replaced by one pump. As an example 1, the drain pump 6 is omitted, the water outlet of the circulation pump 8 is communicated with the outlet pipe 9 and the drain pipe 7, respectively, and the outlet pipe 9 is provided with a first shut-off valve for selectively opening or closing it. The drain pipe 7 is configured with a second shutoff valve for selectively opening or closing it. When the drum washing machine performs the spraying operation, the first shutoff valve is opened and the second shutoff valve is closed; when the drum washing machine performs the draining operation, the first shutoff valve is closed and the second shutoff valve is opened. As an example two, the drain pump 6 is omitted, and a three-way valve is provided for the water outlet of the circulation pump 8, so that the water outlet of the circulation pump 8 can be selectively communicated with the water outlet pipe 9 or the drain pipe 7 by means of the three-way valve. Further, those skilled in the art can also enable the three-way valve to simultaneously block the communication between the circulation pump 8 and the outlet pipe 9 and the communication between the circulation pump 8 and the drain pipe 7 as needed.

As described above, the present invention separately provides the annular cavity member 10 in the outer region of the sealing window pad 5, and fixes the annular cavity member 10 to the outer side wall of the outer cylinder front end 21, while the ejection member 101 is disposed on the annular cavity member 10 (this The injection member 101 passes through the sealing window mat 5) to achieve the purpose of spraying the washing water into the inner cylinder 3. Since the injection member 101 is directly disposed at the annular cavity member 10, the structure of the injection member 101 can be flexibly set to enhance the ejection effect of the wash water. Moreover, in the process of fixing the annular cavity member 10, the window pad fixing portion 51 can be fixed to the outer side wall of the outer tube front end 21 at the same time (it can also be understood that the window pad fixing portion 51 is fixed by the pressing force). Between the annular cavity member 10 and the outer side wall of the outer cylinder front end 21). By this design, the sealing window pad 5 and the annular cavity member 10 can be fixed at the same time, which saves the manufacturing process, thereby greatly reducing the manufacturing cost of the washing machine. Further, as a preferred example, the ejection nozzle 1012 achieves a jetting effect of the annular waterfall water flow by providing a guiding structure or an ejection assembly, which can quickly pass through the laundry, thereby greatly increasing the rinsing rate.

The present invention also provides a drum washing machine comprising a washing machine body, and the above-described spray system for a drum washing machine. For specific embodiments of the drum washing machine, refer to the above description, and details are not described herein again.

Heretofore, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings, but it is obvious to those skilled in the art that the scope of the present invention is obviously not limited to the specific embodiments. Those skilled in the art can make equivalent changes or substitutions to the related technical features without departing from the principles of the present invention, and the technical solutions after the modifications or replacements fall within the scope of the present invention.

Claims (40)

A sprinkler system for a drum washing machine, the drum washing machine comprising a box body, an outer tube and an inner tube arranged in order from the outside to the inside, The spray system includes a circulation pump, an outlet pipe, and an annular cavity disposed at a front end of the outer cylinder, and the annular cavity is provided with an injection port; The water inlet of the circulation pump leads into the outer cylinder, and the water outlet of the circulation pump communicates with the annular cavity through the outlet pipe; In operation, the circulation pump pumps the wash water in the outer cylinder to the annular chamber such that the wash water is sprayed into the inner cylinder by the injection port. A sprinkler system for a drum washing machine according to claim 1, wherein said annular chamber communicates with said outlet pipe through a connection structure; or said annular chamber directly communicates with said outlet pipe; or The annular cavity is integrally formed with the outlet pipe. A shower system for a drum washing machine according to claim 1, wherein said ejection opening is a slit structure formed in said annular cavity. A sprinkler system for a drum washing machine according to claim 1, wherein said injection port has a guiding structure for injecting wash water entering said annular chamber obliquely into said inside In the tube. A sprinkler system for a drum washing machine according to claim 1, wherein said injection port has a jetting assembly for forming a uniform annular water curtain post-injection of wash water entering said annular cavity Into the inner cylinder. The shower system for a drum washing machine according to any one of claims 1 to 5, characterized in that the annular chamber is provided with a plurality of injection ports equally spaced or non-equally spaced. The shower system for a drum washing machine according to any one of claims 1 to 5, characterized in that a sealing window pad is disposed between the box mouth and the outer tube mouth of the drum washing machine, and the annular cavity is located The inner region of the sealing window mat. The sprinkler system for a drum washing machine according to any one of claims 1 to 5, wherein a water outlet of the circulation pump is further connected to a drain pipe of the drum washing machine; The outlet pipe is provided with a first shutoff valve for selectively opening or closing the outlet pipe; the drain pipe is provided with a second shutoff valve for selectively opening or closing the drain pipe. A sprinkler system for a drum washing machine according to any one of claims 1 to 5, wherein said sprinkler system further comprises a three-way valve, said water outlet of said circulation pump being said by said three-way valve Optionally communicating with the outlet pipe or the drain of the drum washing machine. A drum washing machine comprising a washing machine body, characterized in that the drum washing machine further comprises the shower system according to any one of claims 1 to 9. A shower system for a drum washing machine, the drum washing machine comprising a box body, an outer tube and an inner tube arranged in order from the outside to the inside; The spray system includes a circulation pump, an outlet pipe, and an annular cavity member between the casing and the outer cylinder; The annular cavity member is provided with an injection member; The water inlet of the circulation pump leads into the outer cylinder, and the water outlet of the circulation pump communicates with the annular cavity member through the outlet pipe; In operation, the circulation pump pumps the washing water in the outer cylinder to the annular chamber member such that the washing water is sprayed into the inner cylinder by the injection member. A sprinkler system for a drum washing machine according to claim 11, wherein a sealing window pad is disposed between the casing and the outer cylinder, and the spraying member passes through the sealing window mat. A sprinkler system for a drum washing machine according to claim 11, wherein said annular chamber member communicates with said outlet pipe through a connection structure; or said annular chamber member directly communicates with said outlet pipe Or the annular cavity member is integrally formed with the outlet pipe. A shower system for a drum washing machine according to claim 12, wherein said injection member comprises an injection pipe and a spray nozzle which are connected to each other or integrally formed, a first end of the injection pipe is in communication with the annular cavity member, and a second end of the injection pipe passes through the sealing window pad; The spray nozzle is disposed at a second end of the spray pipe for injecting wash water entering the annular cavity member into the inner cylinder. A shower system for a drum washing machine according to claim 14, wherein said spray nozzle has a guide structure for injecting wash water entering said annular chamber member obliquely to said In the inner cylinder. A sprinkler system for a drum washing machine according to claim 14, wherein said spray nozzle has a jetting assembly for forming a uniform annular water curtain after washing water entering said annular cavity member Sprayed into the inner cylinder. A shower system for a drum washing machine according to any one of claims 12, 14 to 16, wherein the annular chamber member is disposed at an outer region of the sealed window mat. The shower system for a drum washing machine according to any one of claims 11 to 16, characterized in that the annular chamber members are provided with a plurality of injection members at equal intervals or at different intervals. The sprinkler system for a drum washing machine according to any one of claims 11 to 16, wherein a water outlet of the circulation pump is further connected to a drain pipe of the drum washing machine; The outlet pipe is provided with a first shut-off valve for selectively opening or closing the water outlet pipe; the drain pipe is provided with a second shut-off valve for selectively opening or closing the drain pipe; Alternatively, the sprinkler system further includes a three-way valve, the water outlet of the circulation pump being selectively in communication with the outlet pipe or the drain pipe by the three-way valve. A drum washing machine comprising a washing machine body, characterized in that the drum washing machine further comprises the shower system according to any one of claims 11 to 19. A spray system for a drum washing machine, the drum washing machine comprising a box body, an outer tube and an inner tube which are arranged in order from the outside to the inside, and a sealing window pad is arranged between the box body port and the outer tube mouth, the box body The front panel is included, and the box mouth is formed on the front panel. The spraying system comprises a circulation pump, an outlet pipe and an annular cavity member located in an outer region of the sealing window pad, the annular cavity member being fixed to an inner wall of the front panel; The annular cavity member is provided with an injection member, and the injection member passes through the sealing window pad; The water inlet of the circulation pump leads into the outer cylinder, and the water outlet of the circulation pump communicates with the annular cavity member through the outlet pipe; In operation, the circulation pump pumps the washing water in the outer cylinder to the annular chamber member such that the washing water is sprayed into the inner cylinder by the injection member. A shower system for a drum washing machine according to claim 21, wherein an inner side of said front panel has an inner flange, and said annular chamber member is fixedly mounted to said inner panel by a fastening member On the side. A shower system for a drum washing machine according to claim 21, wherein said sealing window pad includes a fixing portion that is embedded between said annular cavity member and an inner wall of said front panel . The shower system for a drum washing machine according to claim 23, wherein the annular cavity member is provided with a snap groove, the fixing portion is provided with a snap protrusion; and when the fixing portion is When being engaged between the annular cavity member and the inner wall of the front panel, the snap projection is received in the snap groove, thereby limiting the fixing portion from the annular cavity member Detach between the inner walls of the front panel; or The annular cavity member is provided with a snap protrusion, and the fixing portion is provided with a snap groove; when the fixing portion is embedded between the annular cavity member and the inner wall of the front panel, The snap protrusion is received in the snap groove to restrict the fixing portion from coming out between the annular cavity member and the inner wall of the front panel. The shower system for a drum washing machine according to claim 21, wherein the drum washing machine further comprises a door body, and the door body is provided with an observation window, in a case where the door body is in a closed state An interference seal is formed between the observation window and the sealing window mat. A shower system for a drum washing machine according to claim 21, wherein said annular chamber member communicates with said outlet pipe through a connection structure; or said annular chamber member directly communicates with said outlet pipe Or the annular cavity member is integrally formed with the outlet pipe. A shower system for a drum washing machine according to claim 21, wherein said injection member comprises an injection pipe and a spray nozzle which are connected to each other or integrally formed, a first end of the injection pipe is in communication with the annular cavity member, and a second end of the injection pipe passes through the sealing window pad; The spray nozzle is disposed at a second end of the spray pipe for injecting wash water into the inner cylinder of the annular cavity member. A sprinkler system for a drum washing machine according to claim 27, wherein said spray nozzle has a guiding structure or a jetting assembly, The guiding structure is configured to spray wash water entering the annular cavity member obliquely into the inner cylinder; The jetting assembly is configured to spray wash water entering the annular cavity member into a uniform annular water curtain and then spray into the inner cylinder. A shower system for a drum washing machine according to any one of claims 21 to 28, characterized in that the annular chamber members are provided with a plurality of injection members at equal intervals or at non-equal intervals. A drum washing machine comprising a washing machine body, characterized in that the drum washing machine further comprises the shower system according to any one of claims 21 to 29. A spray system for a drum washing machine, the drum washing machine includes a box body, an outer tube and an inner tube which are sequentially arranged from the outside to the inside, and a sealing window pad is arranged between the box body mouth and the outer tube mouth, The spraying system comprises a circulation pump, an outlet pipe and an annular cavity member located in an outer region of the sealing window pad, the annular cavity member being fixed to an outer side of the front end of the outer cylinder; The annular cavity member is provided with an injection member, and the injection member passes through the sealing window pad; The water inlet of the circulation pump leads into the outer cylinder, and the water outlet of the circulation pump communicates with the annular cavity member through the outlet pipe; In operation, the circulation pump pumps the washing water in the outer cylinder to the annular chamber member such that the washing water is sprayed into the inner cylinder by the injection member. A sprinkler system for a drum washing machine according to claim 31, wherein said annular cavity member is fixedly attached to an outer side wall of a front end of said outer cylinder by a fastening member. A shower system for a drum washing machine according to claim 32, wherein said sealing window pad includes a fixing portion, said fixing portion being embedded in an outer side wall of said annular chamber member and said outer tube front end between. The shower system for a drum washing machine according to claim 33, wherein the annular cavity member is provided with a snap flange, and the outer side wall of the front end of the outer cylinder is provided with a snap groove, The fixing portion is embedded between the engaging flange and the engaging groove. The shower system for a drum washing machine according to claim 31, wherein the drum washing machine comprises a door body, and the door body is provided with an observation window, in a case where the door body is in a closed state, An interference seal is formed between the viewing window and the sealing window mat. A sprinkler system for a drum washing machine according to claim 31, wherein said annular chamber member communicates with said outlet pipe through a connection structure; or said annular chamber member directly communicates with said outlet pipe Or the annular cavity member is integrally formed with the outlet pipe. A shower system for a drum washing machine according to claim 31, wherein said injection member comprises an injection pipe and a spray nozzle which are connected to each other or integrally formed, a first end of the injection pipe is in communication with the annular cavity member, and a second end of the injection pipe passes through the sealing window pad; The spray nozzle is disposed at a second end of the spray pipe for injecting wash water entering the annular cavity member into the inner cylinder. A sprinkler system for a drum washing machine according to claim 37, wherein said spray nozzle has a guiding structure or a jetting assembly, The guiding structure is configured to spray wash water entering the annular cavity member obliquely into the inner cylinder; The jetting assembly is configured to spray wash water entering the annular cavity member into a uniform annular water curtain and then spray into the inner cylinder. A shower system for a drum washing machine according to any one of claims 31 to 38, characterized in that the annular chamber members are provided with a plurality of injection members at equal intervals or at different intervals. A drum washing machine comprising a washing machine body, characterized in that the drum washing machine comprises the shower system according to any one of claims 31 to 39.

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