Draining pump suitable for washing and drying all-in-one machine and washing and drying all-in-one machine

Abstract

The utility model discloses a drainage pump suitable for a washing and drying all-in-one machine and the washing and drying all-in-one machine, and the drainage pump comprises a pump shell assembly which comprises a pump shell provided with a water passing cavity, and a washing water inlet, a condensate water inlet and a drainage port which are arranged on the side wall of the pump shell and are communicated with the pump shell; the filtering assembly comprises a support arranged in the water passing cavity, at least one water inlet hollow area formed in the side wall, in the depth direction of the water passing cavity, of the support, and a filtering part integrally arranged in the support; wherein the filtering part comprises a cone frustum body, a water passing cavity which is formed in the cone frustum body and is suitable for circulating water, and at least one through hole which is formed in the annular side wall of the cone frustum body and is communicated with the water passing cavity. According to the utility model, the discharge efficiency of condensate water and the requirement of filtering foreign matters in washing water are considered at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a drainage pump applicable to a washing and drying integrated machine and the washing and drying integrated machine. Background Art

[0002] The washing and drying integrated machine has the effect of washing and drying clothes at the same time. For the washing and drying integrated machine, during its use, a condenser needs to be used. In this regard, the problem of discharging condensed water needs to be considered. If it is directly discharged into the drum of the washing machine, the clothes will be wetted again, which will affect the drying effect of the dried clothes and reduce the drying efficiency. If it needs to be directly discharged outside the washing machine, an additional drain pipe needs to be added, so an additional drain outlet for the household washing machine needs to be added, which is inconvenient to use.

[0003] In this regard, in order to simplify the condensed water discharge structure, the prior art designs a drainage pump that can connect the condensed water, so that the condensed water directly enters the drainage pump, and then the condensed water is discharged through the drain pipe connected to the drainage pump. In this process, considering the problem of improving the drying efficiency, it is necessary to improve the discharge efficiency of the condensed water. Since the drainage pump is also used to discharge the washing water, a filtering structure for coins, buttons, zipper heads or other sundries contained in the washing water during the washing process is considered. The design of the filtering structure will inevitably reduce the discharge efficiency of the water entering the drainage pump compared with the situation where there is no filtering structure.

[0004] Therefore, for the drainage pump applied to the washing and drying integrated machine, how to balance the discharge efficiency of the condensed water and the filtering of foreign matters in the washing water is a technical problem that needs to be solved currently. Summary of the Utility Model

[0005] The first object of the utility model is to provide a drainage pump applicable to a washing and drying integrated machine to solve the technical problem of meeting the requirements of both the discharge efficiency of the condensed water and the filtering of foreign matters in the washing water.

[0006] The second object of the utility model is to provide a washing and drying integrated machine to solve the technical problem of improving its drying efficiency.

[0007] The drainage pump applicable to the washing and drying integrated machine of the utility model is realized as follows:

[0008] A drainage pump applicable to a washing and drying integrated machine, comprising:

[0009] A pump housing assembly, which includes a pump housing formed with a water passing cavity, and a washing water inlet, a condensed water inlet and a drain outlet that are connected to the pump housing and communicated with the pump housing side wall; and

[0010] A filtering component, comprising a bracket disposed in a water passage cavity, at least one water inlet hollow area formed on a side wall of the bracket along the depth direction of the water passage cavity, and a filtering part integrally disposed in the bracket; wherein

[0011] The filtering part includes a frustum-shaped body, a water passage cavity formed in the frustum-shaped body and adapted to allow water to flow through, and at least one through hole communicated with the water passage cavity and disposed on an annular side wall of the frustum-shaped body.

[0012] In an alternative embodiment of the present utility model, the outer diameter of the frustum-shaped body is gradually enlarged along the water flow direction in the water passage cavity.

[0013] In an alternative embodiment of the present utility model, a water inlet hole communicated with the water passage cavity and a water outlet hole communicated with a drain port are provided on the frustum-shaped body; and

[0014] The water inlet hole is disposed at the axial side end with the smallest outer diameter of the frustum-shaped body, and the water outlet hole is disposed at the axial side end with the largest outer diameter of the frustum-shaped body; the size of the water inlet hole is smaller than the size of the water outlet hole.

[0015] In an alternative embodiment of the present utility model, a foreign object blocking member is disposed in the water inlet hole.

[0016] In an alternative embodiment of the present utility model, a filter column is further disposed in the bracket, and one end of the filter column is adapted to pass through the water inlet hole and then insert into the water passage cavity; and

[0017] A gap adapted to allow water to flow through is formed between an outer side wall of the filter column and a hole wall of the water inlet hole.

[0018] In an alternative embodiment of the present utility model, a plurality of the through holes are uniformly distributed on the annular side wall of the frustum-shaped body so that the annular side wall of the frustum-shaped body forms a grid shape.

[0019] In an alternative embodiment of the present utility model, the area range of each through hole is 45 mm² to 65 mm².

[0020] In an alternative embodiment of the present utility model, the washing water inlet and the condensate water inlet are respectively disposed on two side walls of the pump housing; and

[0021] An included angle θ formed between a central axis of the condensate water inlet and a central axis of the washing water inlet is an obtuse angle.

[0022] In an alternative embodiment of the present utility model, 120° < θ < 170°.

[0023] The washing and drying integrated machine of the present utility model is realized as follows:

[0024] A washing and drying integrated machine, comprising: the drainage pump applicable to the washing and drying integrated machine described above.

[0025] With the above technical solution, the utility model has the following beneficial effects: The drainage pump applicable to the washing and drying integrated machine and the washing and drying integrated machine of the utility model have a washing water inlet, a condensate inlet and a drain outlet provided on the side wall of the pump housing. In this way, the condensate does not need to flow into the drum of the washing and drying integrated machine to wet the clothes to be dried, thus saving drying time and energy, and at the same time meeting the washing requirements and the discharge requirements of the condensate during the drying process. Furthermore, the filter assembly provided can filter foreign matters in the washing water. At the same time, through the through holes provided on the annular side wall of the conical frustum body of the filtering part, the discharge efficiency of the condensate can be improved, thereby improving the drying efficiency. That is, for the drainage pump of the utility model, the discharge efficiency of the condensate and the filtering requirements for foreign matters in the washing water are taken into account at the same time. Description of the Drawings

[0026] Figure 1 is a schematic structural view of the first perspective of the drainage pump applicable to the drying and washing integrated machine according to the embodiment of the present application;

[0027] Figure 2 is an exploded view of the pump body assembly and the filter assembly of the drainage pump applicable to the drying and washing integrated machine according to the embodiment of the present application;

[0028] Figure 3 is a schematic view of the condensate inlet and the washing water inlet of the drainage pump applicable to the drying and washing integrated machine according to the embodiment of the present application;

[0029] Figure 4 is Figure 3 the schematic cross-sectional view taken along the direction A of

[0030] Figure 5 is a schematic structural view of the filter assembly of the drainage pump applicable to the drying and washing integrated machine according to the embodiment of the present application;

[0031] Figure 6 is a schematic structural view of the second perspective of the drainage pump applicable to the drying and washing integrated machine according to the embodiment of the present application;

[0032] Figure 7 is Figure 6 the schematic cross-sectional view taken along the direction A of

[0033] In the figure: pump housing 1, washing water inlet 11, condensate inlet 12, drain outlet 13, water inlet cavity 14, drain cavity 15, bracket 2, water inlet hollow area 21, conical frustum body 3, water passing cavity 31, through hole 32, water inlet hole 33, water outlet hole 34, rib 35, cover 4, filter column 5, condensate pipeline 6, sealing gasket 7. Detailed Embodiments

[0034] In order to make the content of the present utility model easier to be clearly understood, the following further detailed description of the present utility model will be given according to specific embodiments in conjunction with the accompanying drawings.

[0035] Embodiment 1:

[0036] Please refer to Figures 1 to 7 As shown, this embodiment provides a drainage pump applicable to a washing and drying integrated machine, including: a pump housing assembly and a filtering assembly used in cooperation.

[0037] The pump housing assembly includes a pump housing 1 formed with a water passing cavity, and a washing water inlet 11, a condensate inlet 12 and a drain outlet 13 which are arranged on the side wall of the pump housing 1 and communicated with the pump housing 1. An open opening adapted for the filtering assembly to pass through and communicated with the water passing cavity is preset on the pump housing 1.

[0038] The filtering assembly includes a bracket 2 arranged in the water passing cavity, at least one water inlet hollow area 21 formed on the side wall of the bracket 2 along the depth direction of the water passing cavity, and a filtering part integrally arranged in the bracket 2; wherein the inside of the bracket 2 body is hollow, so that on the one hand, it can accommodate the filtering part, and on the other hand, it can facilitate the flow of water.

[0039] The filtering part includes a frustum-shaped body 3, a water passing cavity 31 formed in the frustum-shaped body 3 for water to flow through, and at least one through hole 32 arranged on the annular side wall of the frustum-shaped body 3 and communicated with the water passing cavity 31. It should be noted here that regarding the depth direction of the water passing cavity of the pump housing assembly, it specifically refers to the direction from the washing water inlet 11 to the drain outlet 13 during its use process. When the drain outlet 13 is located below and the washing water inlet 11 is located above, the depth direction can be understood as the longitudinal dimension of the pump housing 1.

[0040] The outer diameter of the frustum-shaped body 3 gradually increases along the water flow direction in the water passing cavity. Considering that both the condensate inlet 12 and the washing water inlet 11 are arranged on the side wall of the pump housing 1, two water inlet hollow areas 21 are arranged on the side wall of the bracket 2, one water inlet hollow area 21 is opposite to the condensate inlet 12, and the other water inlet hollow area 21 is opposite to the washing water inlet 11, so as to improve the efficiency of the condensate and the washing water flowing to the filtering part.

[0041] More specifically, the filtering part forms a partition between the washing water inlet 11, the condensate inlet 12 and the drain outlet 13, such that the water entering through the washing water inlet 11 and the condensate inlet 12 must pass through the filtering part before flowing towards the drain outlet 13. Therefore, under the action of the filtering part, the water passing cavity can actually be divided into a water inlet cavity 14 and a drain cavity 15. The washing water inlet 11 and the condensate inlet 12 are connected to the water inlet cavity 14, while the drain cavity 15 is connected to the drain outlet 13. The filtering part is arranged at one end of the bracket 2 adjacent to the drain cavity 15, and the dimension of the filtering part along the depth direction of the water passing cavity on the side of the bracket 2 facing the drain cavity 15 is smaller than the dimension of the bracket 2 along the depth direction of the water passing cavity. An impeller is provided in the drain cavity 15 here.

[0042] Based on the above situation, furthermore, for the fixing method of the filtering component in the pump housing 1, the present embodiment adopts the following method:

[0043] The bracket 2 is integrally provided with a cover 4, and the cover 4 can be used to form a closed effect on the open opening on the pump housing 1. In this regard, a threaded fit can be optionally adopted between the cover 4 and the open opening to reliably fix the overall filtering component in the pump housing 1. A sealing gasket 7 can be optionally provided between the cover 4 and the open opening of the bracket 2 to ensure the sealing effect of the water passing cavity. For example, internal threads are provided on the inner wall of the open opening, and external threads are provided on the outer wall of the cover 4. In this structure, during the assembly and disassembly of the filtering component and the pump housing 1, only a simple rotating operation is required.

[0044] More specifically, the conical frustum body 3 is provided with a water inlet hole 33 communicating with the water passing cavity and a water outlet hole 34 communicating with the drain outlet 13; and the water inlet hole 33 is provided at the axially side end with the smallest outer diameter on the conical frustum body 3, and the water outlet hole 34 is provided at the axially side end with the largest outer diameter on the conical frustum body 3; the dimension of the water inlet hole 33 is smaller than the dimension of the water outlet hole 34. The water outlet hole 34 here directly penetrates through the side end of the bracket 2 facing the drain cavity 15, such that the bracket 2 does not form an obstruction to the water discharged from the water outlet hole 34.

[0045] In the present embodiment, to meet the usage requirement of setting internal threads in the water passing cavity to form a threaded fit with the cover 4, the water passing cavity preferably adopts a cylindrical cavity. Here, it is preferably that the conical frustum body 3 and the water passing cavity form a coaxial distribution structure, and the axially side end with the largest outer diameter of the conical frustum body 3 is smaller than the inner diameter of the water passing cavity. In this regard, that is to say, the dimension of the water outlet hole 34 is smaller than the inner diameter of the water passing cavity, which can establish a negative pressure in the drain cavity 15 and provide conditions for normal drainage. The axial direction position of the water outlet hole 34 corresponds to the position of the impeller, facilitating the drainage of the impeller and increasing the drainage volume.

[0046] Regarding the through holes 32 in this embodiment, the shape of the through holes 32 is not absolutely limited in this embodiment. For example, it can be a trapezoidal hole, a circular hole or a square hole. It should be noted that the area range of each through hole 32 is 45 mm² to 65 mm². Within this range, it can prevent larger foreign objects such as coins, buttons, and zippers from entering, and at the same time facilitate the rapid discharge of soft foreign objects such as hair and wool yarn, preventing blockage, and can also ensure that the flow rate can meet the usage requirements without affecting the discharge efficiency of condensed water or washing water.

[0047] A plurality of through holes 32 are evenly distributed on the annular side wall of the frustum body 3, so that the annular side wall of the frustum body forms a grid-like structure. In this structure, the annular side wall of the frustum body 3 is equivalent to forming a rib 35 structure between adjacent through holes 32, so that soft foreign objects such as hair and wool yarn can be wound around the rib 35, which is convenient for cleaning the above-mentioned soft foreign objects when the bracket 2 is taken out from the pump housing 1.

[0048] In summary, for the filtering component of this embodiment, according to the flow rate calculation formula Q = Sv (S is the area and v is the water flow velocity), it can be obtained that when the water flow velocity is the same, if you want to increase the flow rate, you need to increase the cross-sectional area. Therefore, in this application, the annular side wall of the frustum body is designed in a grid-like shape, and the cross-sectional area obtained can be the sum of the area of the water inlet hole 33 and the areas of all the through holes 32, which is larger than the area of the single water inlet hole 33, so the flow rate is greatly improved. The increase in the flow rate here not only improves the discharge efficiency of the condensed water, but also improves the discharge efficiency of the washing water.

[0049] On the basis of the above structure, in an optional implementation, a foreign object blocking member is arranged in the water inlet hole 33. The foreign object blocking member can be selected as a plurality of connecting rods radially distributed with the axis of the water inlet hole 33 as the center, so that a water flow-through interval is formed between adjacent connecting rods.

[0050] In addition, it should also be noted that considering further optimizing the filtering effect of foreign objects in the washing water, a filter column 5 is also provided in the bracket 2, one end of which is adapted to pass through the water inlet hole 33 and then insert into the water passing cavity 31; and a gap adapted for water flow is formed between the outer side wall of the filter column 5 and the hole wall of the water inlet hole 33. The filter column 5 here can be selected as a column body with a plurality of convex structures formed on the outer side wall, rather than a column body with a smooth outer surface, mainly to facilitate the winding of soft foreign objects such as hair and wool yarn on the filter column 5.

[0051] To cooperate with the use of the filter column 5 here, the water inlet hole 33 can be a through hole structure, that is, no foreign object blocking member is provided. Of course, a foreign object blocking member can also be provided and then the filter column 5 is provided. At this time, only the plurality of connecting rods need to be arranged radially around the connecting column. The above situations all meet the usage requirements of this embodiment, and this embodiment is not absolutely limited thereto.

[0052] On the basis of the above structure, it should also be noted that, taking an optional implementation case as an example in combination with the attached drawings, the washing water inlet 11 and the condensate inlet 12 are respectively arranged on two side walls of the pump housing 1, which is beneficial to the spatial layout of the washing water and condensate pipes 6 of the washing and drying integrated machine, and can save the pipe length. In this structure, the condensate inlet pipe connected to the condensate inlet 12 has a certain inclination angle, which increases the flow velocity of the condensate and ensures that there is no accumulated water residue in the condensate inlet pipe.

[0053] Based on the above situation, in an optional implementation case, the size of the washing water inlet 11 is larger than that of the drain outlet 13, so as to form a negative pressure in the drain cavity 15, which is beneficial to increasing the drainage lift. The size of the drain outlet 13 is larger than that of the condensate inlet 12 to prevent the water pipe connected to the condensate inlet 12 from partially dividing or relieving the water pressure formed in the water passing cavity, resulting in insufficient drainage lift or no drainage of the condensate. On the other hand, since the amount of condensate is relatively small, the size of the condensate inlet 12 is set smaller so as not to affect normal drainage. And since the amount of washing water is larger, the size of the washing water inlet 11 should be much larger than that of the washing water inlet 11.

[0054] On the basis of the above structure, still considering the problem of improving the drainage efficiency, when observing the bracket 2 along the axis of the washing water inlet 11, a part of the frustum body 3 can be observed. And preferably, for the frustum body 3 within the field of view of the circular washing water inlet 11, taking the circular washing water inlet 11 as an example, the proportion of the frustum body 3 in the washing water inlet 11 is not greater than one-half, so that a certain amount of washing water can enter the water passing cavity 31 through the water inlet of the frustum body 3, improving the utilization rate of the water inlet. For the relatively small condensate inlet 12, in the dimension with the axis of the water passing cavity and the drain outlet 13 at the bottom and the condensate inlet 12 at the top, the condensate inlet 12 is preferably above the water inlet of the frustum body 3. This design is also to improve the utilization rate of the water inlet.

[0055] In addition, it should also be noted that the included angle θ formed between the central axis of the condensate inlet 12 and the central axis of the washing water inlet 11 is an obtuse angle. Here, preferably, 120° < θ < 170°. Preferably 120° or 135° or 150° or 165°. This can prevent the condensate from flowing backward under the influence of gravity in the condensate inlet pipe, affecting the drainage effect of the condensate.

[0056] In summary, for the drain pump applicable to the washing and drying integrated machine of this embodiment, it not only simultaneously meets the washing requirements and the drainage requirements of the condensed water during the drying process, but also can filter foreign matters in the washing water through the provided filtering component. At the same time, by providing through holes 32 on the annular side wall of the frustum body 3 of the filtering part, the drainage efficiency of the condensed water can be improved, thereby improving the drying efficiency. In addition, since the filtering part and the filtering column 5 are directly formed in the bracket 2, the disassembly and assembly between the bracket 2 itself and the pump housing 1 only need to be through a simple threaded connection method. Therefore, for the flexible foreign matters wound on the filtering part or the hard foreign matters whose outer side walls are blocked in the bracket 2, they can be cleaned in time by disassembling the bracket 2 from the pump housing 1, without the user of the washing machine having to reach into the pump housing 1 to clean, and there is no risk problem that the hand may touch the impeller in the drainage cavity 15 of the pump housing 1. Therefore, the safety of use is improved.

[0057] Embodiment 2:

[0058] Based on the drain pump applicable to the washing and drying integrated machine of Embodiment 1, this embodiment provides a washing and drying integrated machine, including: the drain pump applicable to the washing and drying integrated machine of Embodiment 1, which can simultaneously meet the washing and drying requirements for clothes.

[0059] In the above specific embodiments, the purpose, technical solution and beneficial effects of the present invention have been further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0060] In the description of the present invention, it should be understood that the terms indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0061] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0062] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0063] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0064] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

Claims

1. A drainage pump suitable for a washer-dryer, characterized in that: include: A pump housing assembly, comprising a pump housing formed with a water passage cavity, and a washing water inlet, a condensed water inlet and a drain port provided on a side wall of the pump housing and connected to the pump housing; as well as The filter assembly comprises a bracket arranged in a water-passing cavity, at least one water inlet hollow area formed on the side wall of the bracket along the depth direction of the water-passing cavity, and a filter part integrally arranged in the bracket; wherein The filter part comprises a truncated cone body, a water passage cavity formed in the truncated cone body and suitable for flowing water, and at least one through hole arranged on the annular side wall of the truncated cone body and communicating with the water passage cavity.

2. The drainage pump suitable for a washer-dryer according to claim 1, characterized in that: The outer diameter of the truncated cone body is gradually enlarged along the water flow direction in the water-passing cavity.

3. The drainage pump suitable for a washer-dryer according to claim 2, characterized in that: The truncated cone body is provided with a water inlet hole connected to the water passage cavity and a water outlet hole connected to the drain port; and The water inlet is arranged at the axial side end with the smallest outer diameter on the truncated cone body, and the water outlet is arranged at the axial side end with the largest outer diameter on the truncated cone body; the size of the water inlet is smaller than that of the water outlet.

4. The drainage pump suitable for a washer-dryer according to claim 3, characterized in that: A foreign matter blocking member is arranged in the water inlet hole.

5. The drainage pump suitable for a washer-dryer according to claim 3 or 4, characterized in that: The bracket is also provided with a filter column with one end adapted to pass through the water inlet hole and then be inserted into the water passage cavity; and A gap suitable for water circulation is formed between the outer side wall of the filter column and the hole wall of the water inlet hole.

6. The drainage pump suitable for a washer-dryer according to claim 1, characterized in that: A plurality of through holes are evenly distributed on the annular side wall of the truncated cone body so that the annular side wall of the cone body forms a grid shape.

7. The drainage pump suitable for a washer-dryer according to claim 1 or 6, characterized in that: The area of ​​each through hole ranges from 45 mm² to 65 mm².

8. The drainage pump for a washer-dryer according to claim 1, characterized in that: The washing water inlet and the condensed water inlet are respectively arranged on two side walls of the pump housing; and The angle θ formed between the central axis of the condensation water inlet and the central axis of the washing water inlet is an obtuse angle.

9. The drainage pump suitable for a washer-dryer according to claim 8, characterized in that: 120°<θ<170°.

10. A washer-dryer, characterized in that: include: A drainage pump suitable for a washer-dryer as described in any one of claims 1 to 9.

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