Air inlet device for washing equipment and washing equipment
By designing an air intake device on the washing machine that includes a seal, a reset device and an intake pipe, the problem of the washing machine being difficult to avoid splashing when draining water is solved, and the effect of unobstructed drainage and splashing prevention is achieved.
Patent Information
- Application Number
- CN202311641972.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-01
- Publication Date
- 2025-06-03
AI Technical Summary
Existing washing machines are difficult to avoid the problem of splashing water while ensuring smooth drainage.
An air intake device for a washing device is designed, the device including a seal, a reset device and an air intake line. The seal is compressed by the reset device to seal the air intake holes during the washing stage. At the time of drainage, the atmospheric pressure overcomes the force of the reset device to release the sealing of the air intake holes.
It can avoid splashing when the washing machine is drained, while ensuring smooth drainage of the washing machine.
Smart Images

Figure CN120083041A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of washing equipment, and specifically provides an air inlet device for a washing equipment and a washing equipment. Background Art
[0002] As a common household appliance, a washing machine is widely used in daily life. During the washing process of the washing machine, due to the continuous agitation of the laundry in the tub, the washing water will experience large fluctuations. To avoid water leakage or splashing, the interior of the washing machine usually needs to be kept sealed to a certain extent. However, after sealing the interior of the washing machine, a negative pressure will be formed inside the washing machine during drainage, resulting in poor drainage. Therefore, how to ensure smooth drainage of the washing machine while avoiding splashing of the washing machine has become an urgent problem to be solved.
[0003] Correspondingly, there is a need in the art for a new washing equipment to solve the existing problems. Summary of the Invention
[0004] The present invention aims to solve the above technical problems, that is, to solve the problem that the existing washing machine cannot ensure smooth drainage of the washing machine while avoiding splashing of the washing machine.
[0005] In a first aspect, the present invention provides an air inlet device for a washing equipment, where the washing equipment includes: an outer tub, an air inlet hole is provided on the outer tub for communicating the air inside the outer tub with the atmosphere; the air inlet device is provided on the outer tub, and the air inlet device includes: a sealing member pivotally provided for directly or indirectly sealing the air inlet hole; a reset device connected to the sealing member for resetting the sealing member; the air inlet device is configured such that: in a first state, the sealing member seals the air inlet hole under the action of the reset device; in a second state, the sealing member releases the sealing of the air inlet hole under the action of the atmospheric pressure.
[0006] In a specific embodiment of the above air inlet device, the outer tub includes an outer tub cover, the air inlet hole is provided on the outer tub cover, the sealing member is pivotally provided on the outer tub cover, the reset device includes a reset spring and a top plate, the top plate is arranged horizontally or obliquely, one end of the reset spring is connected to the sealing member, and the other end is connected to the top plate, and the reset spring is in a compressed state so that the sealing member seals the air inlet hole under the action of the reset spring.
[0007] In the specific embodiment of the above intake device, the outer barrel includes an outer barrel cover, the intake hole is arranged on the outer barrel cover, the intake device further includes an intake pipeline, the intake pipeline is arranged inside the outer barrel, and the intake end of the intake pipeline is communicated with the intake hole; an L-shaped partition is arranged inside the intake pipeline, the first fold of the L-shaped partition is arranged along the radial direction of the outer barrel, and the second fold is arranged along the axial direction of the outer barrel. The L-shaped partition divides the intake pipeline into an intake part and a chamber part at the outlet end of the intake pipeline. The chamber part is surrounded by the L-shaped partition and the side wall of the intake pipeline, and the opening direction of the chamber part faces the outlet end of the intake pipeline; the seal is covered on the opening of the chamber part and the outlet end of the intake part. Among them, the part covering the opening of the chamber part is the first part of the seal, and the part covering the outlet end of the intake part is the second part of the seal. The area of the first part is smaller than the area of the opening of the chamber part so that the first part can enter the chamber part, and the area of the second part is larger than the area of the outlet end of the intake part so that the second part can seal the outlet end of the intake part. A pivot shaft bracket is arranged in the chamber part, and the seal is pivotally arranged on the pivot shaft bracket; the reset device is a reset spring, the first end of the reset spring is connected to the first fold of the L-shaped partition, and the second end is connected to the first part of the seal. The reset spring is in a compressed state so that the seal seals the outlet end of the intake part under the action of the reset spring.
[0008] In the specific embodiment of the above intake device, a first protrusion is arranged on the first fold of the L-shaped partition, the first end of the reset spring is sleeved on the first protrusion, and / or a second protrusion is arranged on the first part of the seal, and the second end of the reset spring is sleeved on the second protrusion.
[0009] In the specific embodiment of the above intake device, the outer barrel includes an outer barrel cover, the intake hole is arranged on the outer barrel cover, the intake device further includes an intake pipeline, and the intake end of the intake pipeline is communicated with the intake hole; a pivot shaft is arranged inside the intake pipeline, the seal is arranged on the pivot shaft, the seal includes a first part fixedly arranged and a second part pivotally arranged on the pivot shaft, a contact protrusion is further arranged on the inner wall of the intake pipeline, the contact protrusion is arranged on one side of the second part and on the side close to the intake end of the intake pipeline, the reset device is a torsion spring, the torsion spring is sleeved on the pivot shaft, and both ends of the torsion spring are in contact with the first part and the second part of the seal respectively so that the second part of the seal can be in contact with the contact protrusion under the action of the reset device.
[0010] In the specific embodiment of the above intake device, a sealing groove is provided on the seal, and a gasket is provided in the sealing groove.
[0011] In the specific embodiment of the above intake device, protective ribs are provided on the outer side of the intake pipeline.
[0012] In the specific embodiment of the above intake device, a filter screen is provided in the intake pipeline.
[0013] In the specific embodiment of the above intake device, an extension edge is provided on the outer side of the seal.
[0014] The present invention also provides a washing device, and the washing device includes the intake device according to any one of the above technical solutions.
[0015] In the case of adopting the above technical solution, in the first state, that is, in the washing stage of the washing machine, the seal directly or indirectly seals the intake hole under the action of the reset device, so as to form a closed space inside the outer tub of the washing machine, thereby avoiding the splashing of washing water from the intake hole during the washing process; in the second state, that is, in the drainage stage of the washing machine, due to the reduction of the washing water volume, a negative pressure state is formed inside the outer tub. At this time, the seal rotates under the action of the external atmospheric pressure to overcome the acting force of the reset device, and then releases the seal of the intake hole. In this way, the problem that the existing washing machine cannot avoid splashing water while ensuring smooth drainage of the washing machine is solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, in which:
[0017] Figure 1 is a schematic diagram of the outer side of the outer tub cover and the intake hole of the washing device of the present invention;
[0018] Figure 2 is a schematic diagram of the inner side of the outer tub cover and the intake device in Embodiment II of the present invention;
[0019] Figure 3 is a schematic diagram of the inner side of the outer tub cover and the intake device with the seal removed in Embodiment II of the present invention;
[0020] Figure 4 is a partial enlarged view of the inside of the intake device in Embodiment II of the present invention, where Figure 4 is Figure 3 at A in
[0021] Figure 5 is a sectional view of the intake device in Embodiment II of the present invention;
[0022] Figure 6 is a schematic diagram of the intake device in Embodiment III of the present invention;
[0023] Figure 7 It is a schematic diagram of the intake device in the first embodiment of the present invention.
[0024] List of reference numerals:
[0025] 1 - Outer barrel cover; 11 - Intake hole;
[0026] 2 - Intake device;
[0027] 21 - Seal; 211 - First part; 2111 - Second protrusion; 212 - Second part; 213 - Pivot shaft; 214 - Sealing groove; 215 - Sealing gasket; 216 - Extension edge;
[0028] 221 - Return spring; 222 - Top plate; 223 - Torsion spring; 224 - L - shaped partition; 2241 - First folded edge; 22411 - First protrusion; 2242 - Second folded edge;
[0029] 23 - Intake pipeline; 231 - Intake part; 232 - Chamber part; 2321 - Pivot shaft bracket; 233 - Abutting protrusion;
[0030] 24 - Protective rib. Detailed implementation manners
[0031] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention. Those skilled in the art can adjust them as needed to adapt to specific application scenarios. For example, although the description in the specification is given by taking a washing machine as an example, it is obvious that the present invention can be applied to various other washing devices as long as there is a problem that it is impossible to avoid splashing water while ensuring smooth drainage in the washing device.
[0032] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0033] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] First, the existing washing machine will be described.
[0035] As a common household appliance, the washing machine is widely used in daily life. During the washing process, due to the continuous agitation of the clothes in the barrel with the washing water, the washing water will show large fluctuations. In order to avoid water leakage or splashing, a certain degree of sealing is usually required inside the washing machine. However, after the inside of the washing machine is sealed, a negative pressure will be formed inside the washing machine during drainage, resulting in poor drainage. Therefore, how to ensure smooth drainage of the washing machine while avoiding splashing of the washing machine has become an urgent problem to be solved.
[0036] Embodiment 1
[0037] As Figure 1 、 Figure 7 shown, to solve the problem that the existing washing machine cannot ensure smooth drainage of the washing machine while avoiding splashing of the washing machine, the washing device of the present invention includes an outer tub and an air intake device. Among them, the outer tub includes an outer tub cover 1, and an air intake hole 11 is provided on the outer tub cover 1 for communicating the air inside the outer tub with the atmosphere; the air intake device includes:
[0038] A seal 21, the pivot shaft 213 of the seal 21 is provided on the inner side wall of the outer tub cover 1 for directly sealing the air intake hole 11;
[0039] A reset device, the reset device includes a reset spring 221 and a top plate 222. The top plate 222 is horizontally or obliquely arranged inside the outer tub and fixedly connected to the inner wall of the outer tub. One end of the reset spring 221 is connected to the seal 21, and the other end is connected to the top plate 222. The reset spring 221 is in a compressed state so that the seal 21 is reset under the action of the reset spring 221 and seals the air intake hole 11.
[0040] In the case of adopting the above-mentioned implementation manner, during the use of the washing equipment of the present invention, in the first state, that is, the washing stage, since the return spring 221 is in a compressed state, the seal 21 is in a reset state under the extrusion of the return spring 221, and then abuts against the air inlet hole 11 of the outer tub cover 1 to seal the air inlet hole 11; in the second state, that is, the drainage stage, at this time, as the washing water volume decreases, a negative pressure state gradually forms inside the outer tub. At this time, the external atmospheric pressure will exert a pressure on the seal 21 in the direction of the inside of the outer tub. As the washing water volume further decreases, the pressure exerted by the atmospheric pressure on the seal 21 further increases until it is greater than the elastic force provided by the return spring 221. At this time, the seal 21 rotates and opens in the direction of the inside of the outer tub under the action of the atmospheric pressure, releasing the seal of the air inlet hole 11. Thus, the problem that the existing washing machine cannot avoid splashing water while ensuring smooth drainage of the washing machine is solved. In addition, when the drainage is completed, since the air pressure inside the outer tub is the same as the external atmospheric pressure at this time, the seal 21 will again seal the air inlet hole 11 under the action of the return spring 221 to prevent dust and other impurities from entering the inside of the outer tub. In addition, regarding the setting of the top plate 222, although it is inclined in the figure, this is not the only setting method. Those skilled in the art can also set the top plate 222 horizontally, as long as the return spring 221 can exert an extrusion effect on the seal 21. These changes do not exceed the technical principle of the present invention, so they will also be included in the protection scope of the present invention.
[0041] Embodiment 2
[0042] In the first embodiment mentioned above, a setting method of pivotally arranging the seal 21 on the outer tub cover 1 is proposed. Although this method is simple and easy to implement, since both the pivot shaft 213 and the seal 21 are arranged on a plane (the inner side wall of the outer tub cover 1), it is easy to occur that the seal 21 does not fit tightly with the outer tub cover 1, resulting in air leakage. Based on this, in this embodiment, this implementation manner is further optimized, such as Figures 1 - 5As shown in the figure, the difference between this embodiment and the first embodiment lies in that: the intake device 2 in this embodiment further includes an intake pipeline 23, which is arranged inside the outer barrel. The intake end of the intake pipeline 23 is communicated with the intake hole 11. An L-shaped partition 224 is arranged in the intake pipeline 23. The first fold 2241 of the L-shaped partition 224 is arranged along the radial direction of the outer barrel, and the second fold 2242 is arranged along the axial direction of the outer barrel. The L-shaped partition 224 divides the intake pipeline 23 into an intake part 231 and a chamber part 232 at the outlet end of the intake pipeline 23. The chamber part 232 is formed by the L-shaped partition 224 and the side wall of the intake pipeline 23. The opening direction of the chamber part 232 faces the outlet end of the intake pipeline 23. A seal 21 covers the opening of the chamber part 232 and the outlet end of the intake part 231. Among them, the part covering the opening of the chamber part 232 is the first part 211 of the seal 21, and the part covering the outlet end of the intake part 231 is the second part 212 of the seal 21. The area of the first part 211 is smaller than the area of the opening of the chamber part 232 so that the first part 211 can enter the chamber part 232, and the area of the second part 212 is larger than the area of the outlet end of the intake part 231 so that the second part 212 can seal the outlet end of the intake part 231. A pivot shaft bracket 2321 is arranged in the chamber part 232, and the seal 21 is pivotally arranged on the pivot shaft bracket 2321. The reset device is a reset spring 221. A first protrusion 22411 is arranged on the first fold 2241 of the L-shaped partition 224. The first end of the reset spring 221 is sleeved on the first protrusion 22411. A second protrusion 2111 is arranged on the first part 211 of the seal 21. The second end of the reset spring 221 is sleeved on the second protrusion 2111. The reset spring 221 is in a compressed state so that the seal 21 seals the outlet end of the intake part 231 under the action of the reset spring 221.
[0043] In the case of adopting the above-mentioned implementation manner, during the washing stage, the first part 211 of the seal 21 has a tendency to rotate counterclockwise under the extrusion of the reset spring 221, so that the second part 212 of the seal 21 also has a tendency to rotate counterclockwise and abuts against the outlet end of the intake part 231 to seal the outlet end of the intake part 231; during the drainage stage, the second part 212 of the seal 21 rotates clockwise under the action of the atmospheric pressure against the elastic force of the reset spring 221, thereby driving the first part 211 to rotate clockwise and compressing the reset spring 221. At this time, the air pressure inside the outer barrel is the same as the atmospheric pressure, and the washing water is discharged smoothly. When the washing water is completely drained, the first part 211 of the seal 21 rotates counterclockwise under the action of the reset spring 221 and drives the second part 212 to re-abut against the outlet end of the intake part 231 for sealing.
[0044] The advantages of the above-described embodiments are as follows: Since the intake pipe 23 extends a certain height in the direction towards the inside of the outer barrel, compared to sealing the intake holes 11 on a plane in the first embodiment, sealing the intake pipe 23 is more conducive to providing sufficient layout space for the seal 21, and thus can better indirectly seal the intake holes 11. Additionally, by providing the first protrusion 22411 and the second protrusion 2111 on the first folded edge 2241 of the L-shaped partition 224 and the first part 211 of the seal 21 respectively to connect with both ends of the return spring 221, the connection is stable and easy to install and disassemble, facilitating subsequent maintenance.
[0045] Embodiment Three
[0046] As Figures 1 - 6 shown, in this embodiment, an intake pipe 23 communicating with the intake holes 11 is also provided. Different from the aforementioned Embodiment Two, in this embodiment, the intake pipe 23 is sealed by pivotally arranging the seal 21 inside the intake pipe 23. Specifically, a pivot shaft 213 is provided inside the intake pipe 23, the seal 21 is arranged on the pivot shaft 213, the seal 21 includes a fixedly arranged first part 211 and a second part 212 pivotally arranged on the pivot shaft 213, and an abutting protrusion 233 is further provided on the inner wall of the intake pipe 23. The abutting protrusion 233 is arranged on the side close to the intake end of the intake pipe 23. The reset device is a torsion spring 223, the torsion spring 223 is sleeved on the pivot shaft 213, and both ends of the torsion spring 223 respectively abut against the first part 211 and the second part 212 of the seal 21, so that the second part 212 of the seal 21 can abut against the abutting protrusion 233 under the action of the reset device.
[0047] In the case of adopting the above-described embodiment, during the washing stage, the second part 212 of the seal 21 abuts against the abutting protrusion 233 under the action of the torsion spring 223, and the first part 211 and the second part 212 of the seal 21 seal the intake pipe 23, preventing washing water from splashing out from the intake holes 11 during the washing process; during the drainage stage, the second part 212 of the seal 21 rotates and opens towards the inside of the outer barrel under the action of the atmospheric pressure, overcoming the elastic force of the torsion spring 223, so that the air pressure inside the outer barrel is consistent with the atmospheric pressure, enabling the washing water to drain smoothly. After the drainage is completed, the second part 212 of the seal 21 abuts against the abutting protrusion 233 again under the action of the torsion spring 223 to seal the intake pipe 23.
[0048] Furthermore, as Figure 5 shown, in a preferred embodiment, a sealing groove 214 is provided on the seal 21, a sealing gasket 215 is arranged in the sealing groove 214, and an outer extension edge 216 is provided on the outside of the seal 21.
[0049] The advantages of the above embodiments are as follows: By providing a sealing groove 214 and a sealing gasket 215 on the seal 21 and an extension edge 216 on the seal 21, the sealing performance of the seal 21 when sealing the air inlet hole 11 or the air inlet pipeline 23 can be improved, further avoiding the situation where washing water splashes out from the air inlet hole 11. In addition, during the process of the seal 21 rotating to open and close, the sealing gasket 215 provided on the seal 21 can also play a role in shock absorption and buffering, avoiding noise generated by the impact of the seal 21 and improving the user experience.
[0050] Further, as Figure 4 shown, in a possible embodiment, a protective rib 24 is further provided on the outer side of the air inlet pipeline 23.
[0051] The advantages of the above embodiments are as follows: In some special cases, for example, when too many clothes are added to the washing machine, the clothes may come into contact with the outer tub lid 1 during the washing process. Therefore, in this embodiment, the protective rib 24 is added on the outer side of the air inlet pipeline 23. Since the length of the protective rib 24 is longer than the length of the air inlet pipeline 23, the protective rib 24 can protect the air inlet pipeline 23 and the sealing cover, etc., and prevent the clothes from rubbing against the seal 21.
[0052] Further, in a possible embodiment, a filter screen (not shown in the figure) is further provided in the air inlet pipeline 23 to prevent impurities outside the washing machine from entering the washing machine through the air inlet hole 11 and affecting the cleanliness of the clothes to be washed.
[0053] In addition, the present invention further provides a washing device, including the air inlet device 2 described in any one of the above technical solutions.
[0054] It should be noted that the above embodiments are only used to illustrate the principle of the present invention and are not intended to limit the protection scope of the present invention. Without departing from the principle of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.
[0055] So far, the technical solutions of the present invention have been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.
Claims
1. An air intake device for a washing apparatus, characterized in that, the washing apparatus comprises: an outer tub, on which an air intake hole is provided for communicating the air inside the outer tub with the atmosphere; the air intake device is provided on the outer tub, and the air intake device comprises: a seal, which is pivotally arranged and is used for directly or indirectly sealing the air intake hole; a reset device, connected to the seal and used for resetting the seal; the air intake device is arranged such that: in a first state, the seal seals the air intake hole under the action of the reset device; in a second state, the seal releases the sealing of the air intake hole under the action of the atmospheric pressure.
2. The air intake device according to claim 1, characterized in that, the outer tub comprises an outer tub cover, the air intake hole is provided on the outer tub cover, the pivotal arrangement of the seal is on the outer tub cover, the reset device comprises a reset spring and a top plate, the top plate is arranged horizontally or obliquely, one end of the reset spring is connected to the seal, and the other end is connected to the top plate, and the reset spring is in a compressed state so that the seal seals the air intake hole under the action of the reset spring.
3. The air intake device according to claim 1, characterized in that, the outer tub comprises an outer tub cover, the air intake hole is provided on the outer tub cover, the air intake device further comprises an air inlet pipeline, the air inlet pipeline is arranged inside the outer tub, and the air inlet end of the air inlet pipeline is communicated with the air intake hole; an L-shaped partition is arranged inside the air inlet pipeline, a first folded edge of the L-shaped partition is arranged along the radial direction of the outer tub, and a second folded edge is arranged along the axial direction of the outer tub. The L-shaped partition divides the air inlet pipeline into an air intake part and a chamber part at the air outlet end of the air inlet pipeline. The chamber part is surrounded by the L-shaped partition and the side wall of the air inlet pipeline, and the opening direction of the chamber part faces the air outlet end of the air inlet pipeline; the seal covers the opening of the chamber part and the air outlet end of the air intake part. Among them, the part covering the opening of the chamber part is the first part of the seal, and the part covering the air outlet end of the air intake part is the second part of the seal. The area of the first part is smaller than the area of the opening of the chamber part so that the first part can enter the chamber part, and the area of the second part is larger than the area of the air outlet end of the air intake part so that the second part can seal the air outlet end of the air intake part. A pivot shaft bracket is arranged inside the chamber part, and the seal is pivotally arranged on the pivot shaft bracket; the reset device is a reset spring, a first end of the reset spring is connected to the first folded edge of the L-shaped partition, and a second end is connected to the first part of the seal. The reset spring is in a compressed state so that the seal seals the air outlet end of the air intake part under the action of the reset spring.
4. The air intake device according to claim 3, characterized in that, a first protrusion is arranged on the first folded edge of the L-shaped partition, and the first end of the reset spring is sleeved on the first protrusion, and / or, A second protrusion is provided on the first part of the seal, and the second end of the return spring is sleeved on the second protrusion.
5. The air intake device according to claim 1, wherein, the outer barrel includes an outer barrel cover, the air intake hole is provided on the outer barrel cover, the air intake device further includes an air inlet pipeline, and the air inlet end of the air inlet pipeline is communicated with the air intake hole; a pivot shaft is provided in the air inlet pipeline, the seal is provided on the pivot shaft, the seal includes a fixedly arranged first part and a second part pivotally arranged on the pivot shaft, a contact protrusion is further provided on the inner wall of the air inlet pipeline, the contact protrusion is arranged on one side of the second part and on the side close to the air inlet end of the air inlet pipeline, the reset device is a torsion spring, the torsion spring is sleeved on the pivot shaft, and two ends of the torsion spring are respectively in contact with the first part and the second part of the seal, so that the second part of the seal can be in contact with the contact protrusion under the action of the reset device.
6. The air intake device according to any one of claims 1-5, wherein, a sealing groove is provided on the seal, and a gasket is provided in the sealing groove.
7. The air intake device according to any one of claims 3-5, wherein, protective ribs are provided on the outer side of the air inlet pipeline.
8. The air intake device according to any one of claims 3-5, wherein, a filter screen is provided in the air inlet pipeline.
9. The air intake device according to any one of claims 3 or 4, wherein, an extension edge is provided on the outer side of the seal.
10. A washing device, wherein, the washing device includes the air intake device according to any one of claims 1-9.