Water filling pipe for washing machine

Abstract

The application discloses a water injection pipe of a washing machine, which comprises a pipe element having a water inlet at one end and being closed at the other end, a plurality of water outlets being formed on the side wall of the pipe element along the axial direction, a pressure stabilizer movably arranged in the pipe element and moving towards the closed end of the pipe element under the action of water pressure, and a reset element having one end connected with the inner wall of the pipe element and the other end connected with the pressure stabilizer, and providing a restoring force for the pressure stabilizer to move towards the water inlet of the pipe element when the water pressure decreases. The water pressure is dynamically adjusted by the size of the space occupied by the pressure stabilizer in the pipe element under the impact of water flow, and the shape of the water flow of the exposed water outlet is concentrated and beautiful when the water flow flows out.

Description

Technical Field

[0001] This invention belongs to the field of washing machines, and more specifically, relates to a water inlet pipe for a washing machine. Background Technology

[0002] The water intake of a top-loading washing machine is affected by water pressure, resulting in inconsistent water flow. When the water pressure is too high, the water intake exceeds the water output, increasing the risk of overflow and posing safety hazards related to water, fire, and electricity. When the water pressure is too low, the water intake is less than the water output, resulting in a scattered and uneven water flow that affects the machine's appearance.

[0003] In existing technology, washing machines generally have a special water channel structure in the outlet of the water inlet pipe or water inlet box to deal with the situation when the water pressure is too low. The pressurization method prevents the water flow from being dispersed due to low water pressure. However, in real life, due to different floors, environments, etc., the water pressure is often unstable. When the water pressure is too high, the water jet will hit the drum wall and cause water to splash. Similarly, the water flow is dispersed.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and the purpose is to provide a washing machine water inlet pipe that can automatically adjust water pressure and ensure that the water flow shape is uniform and full.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A washing machine water inlet hose, characterized in that it comprises:

[0008] The pipe fitting has an inlet at one end and is closed at the other end. Multiple outlets are provided on the side wall of the pipe fitting along the axial direction.

[0009] A pressure stabilizing component is movably disposed inside the pipe fitting and is used to move toward the closed end of the pipe fitting under the action of inlet water pressure.

[0010] The reset component has one end connected to the inner wall of the pipe and the other end connected to the pressure stabilizer. It is used to provide a restoring force to the pressure stabilizer to move towards the inlet of the pipe when the inlet pressure decreases.

[0011] Furthermore, one end of the voltage stabilizer is positioned close to the water outlet of the washing machine's water inlet pipe;

[0012] One end of the reset component is connected to the closed end inside the pipe, and the other end of the reset component is connected to the other end of the voltage stabilizer.

[0013] Furthermore, the voltage stabilizer includes,

[0014] A pressure-blocking part is provided near the water inlet of the pipe fitting to block the incoming water flow;

[0015] The flow guide section, connected to the pressure resisting section, is used to guide the inlet water flow towards the outlet.

[0016] Furthermore, the pressure-retaining part has a columnar structure, and one end of the pressure-retaining part is provided with a concave cavity, which is arranged opposite to the water inlet of the pipe fitting.

[0017] Furthermore, the outer peripheral wall of the pressing part is provided with annular ribs.

[0018] Furthermore, the flow guide includes,

[0019] The flow guiding body extends from the pressure-retaining part toward the closed end of the pipe fitting;

[0020] Multiple guide vanes are provided, each of which extends along the axial direction of the guide body, and the multiple guide vanes are circumferentially spaced around the guide body.

[0021] Furthermore, the plurality of guide vanes include straight guide vanes and arc-shaped guide vanes, which are alternately arranged circumferentially around the guide body.

[0022] Furthermore, the pipe fitting is provided with a drain hole, which is located on the side of the outlet near the closed end of the pipe fitting.

[0023] Furthermore, the plurality of water outlets are arranged in at least three rows, with each water outlet in each row facing the same direction, and the water outlets in adjacent rows facing opposite directions.

[0024] Furthermore, the pipe fitting includes a first pipe body, a second pipe body, and a third pipe body connected in sequence, and the diameters of the first pipe body, the second pipe body, and the third pipe body decrease sequentially.

[0025] The pressure stabilizer is movably disposed in the second pipe body, and one end of the pressure stabilizer extends into the first pipe body and presses against and blocks the outlet of the washing machine's water inlet pipe.

[0026] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0027] 1. This invention, by setting a pressure stabilizing component, multiple water outlets, and a resetting component in the pipe fitting, dynamically adjusts the water pressure by utilizing the space occupied by the pressure stabilizing component in the pipe fitting under the impact of water flow. At the same time, it ensures that the water flow from the exposed water outlet is concentrated and aesthetically pleasing when it flows out.

[0028] 2. By setting multiple water outlets with different directions for adjacent outlets, the present invention provides a wider water coverage area, creating a multi-layered, three-dimensional water flow that appears more abundant.

[0029] 3. This invention sets straight guide plates and arc-shaped guide plates on the flow guide body of the pressure stabilizer, so that multiple straight guide plates and arc-shaped guide plates form a water channel for water flow, which guides the water flow and ensures that the thrust of the water flow is always along the axial direction. At the same time, it can effectively prevent the water flow from rolling and producing abnormal noise in the sealed cavity.

[0030] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0031] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0032] Figure 1 This is an assembly diagram showing the connection between the washing machine water inlet pipe and the washing machine water supply pipe of the present invention;

[0033] Figure 2 This is a schematic diagram of the pipe fitting, voltage stabilizer, and reset component of the present invention;

[0034] Figure 3 This is the present invention. Figure 1 A diagram from another perspective;

[0035] Figure 4 This is a schematic diagram of the pipe fitting of the present invention.

[0036] In the diagram: 1. Pipe fitting; 101. First pipe body; 1011. Flanged edge; 1012. Notch; 1013. Protrusion; 102. Second pipe body; 103. Third pipe body;

[0037] 2. Pressure stabilizing component; 201. Pressing part; 2011. Cavity; 202. Flow guiding part; 2021. Flow guiding body; 2022. Flow guiding plate;

[0038] 3. Reset component;

[0039] 4. Circular raised rib;

[0040] 5. Straight guide vane;

[0041] 6. Arc-shaped deflector;

[0042] 7. Water outlet;

[0043] 8. Drainage hole;

[0044] 9. Pressure relief hole;

[0045] 10. Arc-shaped bayonet;

[0046] 11. Block;

[0047] 12. Second stop.

[0048] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0050] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] like Figures 1 to 4 The washing machine water inlet pipe of the present invention includes,

[0053] One end of the pipe fitting 1 has a water inlet, and the other end is closed. Along the axial direction of the pipe fitting 1, multiple water outlets 7 are provided on its side wall.

[0054] The pressure stabilizing component 2 is disposed inside the pipe fitting 1, and the pressure stabilizing component 2 is movable in the pipe fitting 1. Specifically, it moves towards the closed end of the pipe fitting 1 under the action of the inlet water pressure.

[0055] One end of the reset member 3 is connected to the inner wall of the pipe fitting 1. In this case, the reset member 3 can be connected to the inner circumferential wall of the pipe fitting 1 or to the closed end face. The other end is connected to the pressure stabilizer 2. When the inlet water pressure decreases, it can provide a reset force to the pressure stabilizer 2, causing the pressure stabilizer 2 to move towards the inlet of the pipe fitting 1. The pressure stabilizer 2 is disposed in the pipe fitting 1 via the reset member 3, and the outer wall of the pressure stabilizer 2 does not contact the inner wall of the pipe fitting 1 to avoid friction.

[0056] The present invention utilizes the connection between the reset component 3 and the pressure stabilizer 2. Under the action of water pressure, the pressure stabilizer 2 can move towards the closed end of the pipe 1 under the action of the pipe 1, thereby adaptively adjusting the water pressure of the inlet. Since the pressure stabilizer 2 moves under the action of water pressure, it will avoid exposing a corresponding number of water outlets 7, ensuring that the water flow shape of the exposed water outlets 7 is concentrated and full.

[0057] One end of the voltage stabilizer 2 is positioned near the water outlet of the washing machine's water inlet pipe;

[0058] One end of the reset component 3 is connected to the closed end inside the pipe fitting 1, and the other end is connected to the other end of the voltage stabilizer 2. The voltage stabilizer 2 is installed in the pipe fitting 1 through the reset component 3.

[0059] like Figure 2 The pressure stabilizing component 2 includes a pressure-blocking part 201 and a flow-guiding part 202.

[0060] The pressure-blocking part 201 is located near the water outlet of the washing machine's water inlet pipe, and the end of the pressure-blocking part 201 is used to press and block the water outlet of the washing machine's water inlet pipe; the flow guide part 202 is connected to the pressure-blocking part 201, and the flow guide part 202 guides the water flow into the pipe fitting 1.

[0061] The pressing part 201 and the flow guiding part 202 are fixed by plugging, bonding or threading. Preferably, the plugging method is used. A plug is provided at the end of the pressing part 201 and a slot matching the plug is provided on the flow guiding part 202, which makes the installation quick and convenient.

[0062] Preferably, the flow guiding body 2021 and the pressure resisting part 201 are coaxially arranged to ensure that when water flows through the pipe fitting 1, the water flow rate through each position of the pressure stabilizing part 2 and the interlayer of the pipe fitting 1 is consistent, so as to avoid the turbulence caused by inconsistent flow rates.

[0063] The water outlet of the washing machine's water inlet pipe is blocked by the pressure part 201. When the water supply stops, the restoring force of the reset member 3 can be used to press the end of the pressure part 201 against the water outlet of the washing machine's water inlet pipe, effectively preventing residual water from dripping into the inner drum.

[0064] Specifically, the pressure-retaining part 201 adopts a columnar structure, and one end of the pressure-retaining part 201 is provided with a cavity 2011, which is arranged opposite to the water inlet of the pipe fitting 1.

[0065] By setting the cavity 2011, the resistance to water flow impact is increased, ensuring that the pressure stabilizer 2 moves normally and smoothly in the pipe 1 under the action of water flow impact.

[0066] The outer side of the pressing part 201 is provided with an annular rib 4.

[0067] Preferably, the annular rib 4 can be fixedly sleeved on the outer wall of the pressing part 201.

[0068] The annular rib 4 is flared on the inner wall of the pressing part 201 where it contacts the pressing part 201. The side with the larger opening is set along the water flow direction. On the one hand, this makes it easy for the annular rib 4 to be inserted into the pressing part 201 from the side close to the washing machine water inlet pipe. On the side of the pressing part 201 away from the washing machine water inlet pipe, there are multiple protrusions with wedge-shaped cross sections to prevent the annular rib 4 from detaching when impacted by water flow. On the other hand, the impact of water flow makes the annular rib 4 more firmly fitted onto the outer periphery of the pressing part 201.

[0069] Alternatively, the annular rib can be divided into two parts, similar to a clamp, and the two parts can be locked and fixed with screws.

[0070] The annular rib 4 increases the overall cross-sectional area of ​​the pressure-resistant part 201, further increasing the resistance to water flow and effectively ensuring that the pressure stabilizer 2 can move normally under the impact of water flow.

[0071] like Figure 2 The flow guiding part 202 includes a flow guiding body 2021, which extends from the pressure part 201 toward the closed end of the pipe fitting 1. A columnar structure can extend from the end of the pressure part 201 to form the flow guiding body 2021.

[0072] Multiple guide plates 2022 are also provided on the outside of the flow guide body 2021. Each guide plate 2022 extends along the axial direction of the flow guide body 2021, and the multiple guide plates 2022 are arranged circumferentially around the flow guide body 2021.

[0073] Preferably, a plurality of the flow guide plates 2022 are arranged at equal intervals around the outside of the flow guide body 2021.

[0074] Specifically, the plurality of guide plates 2022 include straight guide plates 5 and arc-shaped guide plates 6, which are alternately arranged around the circumference of the guide body 2021.

[0075] The arc-shaped guide plate 6 has a U-shaped cross-section perpendicular to the water flow direction. The straight guide plate 5 and the arc-shaped guide plate 6 form a waterway for water flow, which guides the water flow so that the thrust of the water flow is always along the axial direction, avoiding turbulence. At the same time, it prevents the water flow from rolling and making noise in the closed cavity.

[0076] In addition, the side wall of the flow guide body 2021 can be provided with multiple slots for fixing the straight flow guide plate 5 and the arc flow guide plate 6, and the straight flow guide plate 5 and the arc flow guide plate 6 are interference fit with the opening of the slots.

[0077] like Figures 2 to 4 A drain hole 8 is provided on the pipe wall near the closed end of the pipe fitting 1, and at least one drain hole 8 is provided on the pipe wall of the pipe fitting 1. The diameter of the drain hole 8 is larger than the diameter of each outlet 7, so that the drain hole 8 can fully play the role of depressurization and water discharge when the inlet water pressure is too high.

[0078] When the water pressure is too high, the water flow impacts and squeezes the pressure stabilizer 2, and the reset part 3 contracts to its maximum extent. At this time, the water flows out through the drain hole 8, which relieves the impact pressure of the water flow and prevents the water flow pressure at the outlet 7 at the edge from being too high and impacting the inner cylinder wall.

[0079] like Figure 2 The reset element 3 is a spring or an elastic component mainly made of elastic material.

[0080] The reset element 3 is preferably made of a spring, which is low in cost and easy to install in the pipe fitting 1.

[0081] Preferably, the end of the flow guide body 2021 away from the pressure part 201 is set on the first mounting plate for installing the positioning spring, so that the outer ring of one end of the spring can be directly fitted onto the first mounting plate; similarly, the second mounting plate is set on the closed end face of the third tube body 103 of the pipe fitting 1, and the first mounting plate and the second mounting plate are the same size and are set opposite to each other.

[0082] like Figures 1 to 4 The plurality of water outlets 7 are arranged in at least three rows on the side wall of the pipe fitting 1, with each water outlet 7 in each row having the same orientation, and the water outlets 7 in adjacent rows having opposite orientations.

[0083] During operation, the water flow impacts the pressure stabilizer 2 and compresses the reset member 3, causing it to move towards the closed end of the pipe fitting 1. Thus, depending on the water pressure, the pressure stabilizer 2 moves and exposes a corresponding number of outlets 7. When the inlet water pressure is low, fewer outlets 7 are exposed, and the pressure stabilizer 2 occupies a larger space in the second pipe body 102 of the pipe fitting 1, thereby pressurizing the water flow. The water flow preferentially forms a full flow from the exposed outlets 7. When the water pressure is high, more outlets 7 are exposed, and the pressure stabilizer 2 occupies less space in the second pipe body 102 of the pipe fitting 1, thereby depressurizing the water flow, and the water flow can be concentrated and fully discharged from more outlets 7.

[0084] The pressure stabilizing component 2 in this invention can dynamically adjust the inlet water pressure. During the adjustment of the water pressure, the shape of the water flowing out from the exposed outlet 7 is concentrated and aesthetically pleasing. At the same time, since the outlet 7 is arranged in three rows with staggered orientations, the coverage of the water flow is larger, the outflowing water forms a three-dimensional shape, and the water flow appears more abundant.

[0085] like Figures 1 to 4 The pipe fitting 1 includes a first pipe body 101, a second pipe body 102, and a third pipe body 103 connected in sequence, and the diameters of the first pipe body 101, the second pipe body 102, and the third pipe body 103 decrease sequentially. By dividing the pipe fitting 1 into three parts, and the inner diameter of each part decreasing sequentially, it can be used to achieve rapid positioning when assembling the pressure stabilizing component 2.

[0086] The pressure stabilizer 2 is movably disposed in the second pipe body 102, and one end of the pressure stabilizer 2 extends into the first pipe body 101 and presses against and blocks the outlet of the washing machine's water inlet pipe.

[0087] Specifically, the shaft diameter of the guide body 2021 is smaller than the shaft diameter of the pressure part 201, and the shaft diameter of the guide body 2021 is smaller than the inner diameter of the third pipe 103. During the water flow impact, the guide body 2021 can smoothly compress the reset piece 3 and enter the third pipe 103. At the same time, the shaft diameter of the pressure part 201 is larger than the inner diameter of the third pipe 103, so that the reset piece 3 will not be further squeezed under excessive water pressure, thus effectively protecting the reset piece 3.

[0088] like Figure 3 Furthermore, the present invention incorporates a pressure stabilizing component 2 and a resetting component 3 within the pipe fitting 1, and connects the pipe fitting 1 to the washing machine's water inlet pipe. The specific connection configuration and method are as follows:

[0089] At least one arc-shaped bayonet 10 is provided on the side wall of the first pipe body 101 of the pipe fitting 1, and the arc-shaped bayonet 10 has a large opening at one end and a small opening at the other end, with a rounded transition in the middle. The arc-shaped bayonet 10 is inclined, with the large opening end close to the side wall of the water inlet of the pipe fitting 1. The outer side of the washing machine water inlet pipe is provided with a number of locking blocks 11 equal to the number of arc-shaped bayonet 10, and the size of the locking blocks 11 matches the small opening end.

[0090] The assembly action involves fitting the first tube 101 onto the outside of the washing machine's water inlet pipe and rotating the tube 1 so that the locking block 11 rotates from the end with the larger opening of the arc-shaped locking mouth 10 to the end with the smaller opening and presses against it, thereby completing the installation action of the tube 1.

[0091] Furthermore, since the arc-shaped bayonet 10 is tilted towards the side of the washing machine's water inlet pipe, the fitting 1 can continuously approach the outlet of the washing machine's water inlet pipe until it is tightly pressed together during rotation, making installation quick and convenient.

[0092] Specifically, the water inlet end of the pipe fitting 1 extends outward to form a flange 1011, and a notch 1012 is provided on the side wall of the flange 1011. A protrusion 1013 is provided at the notch 1012, and the protrusion 1013 and the notch 1012 of the flange 1011 together form a first stop. A second stop 12 is provided on the outside of the washing machine water inlet pipe, and the second stop 12 is L-shaped. When the pipe fitting 1 rotates, when the locking block 11 engages with the smaller opening end of the arc-shaped locking slot 10, the second stop 12 abuts against the first stop, preventing the operator from using excessive force, which could cause the side wall of the smaller opening end of the arc-shaped locking slot 10 to be worn or even squeezed and deformed.

[0093] Alternatively, the flange 1011 can be formed by assembly, making the flange 1011 annular, which can be directly sleeved or threaded to the outer wall of the pipe fitting 1.

[0094] like Figures 2 to 4 The outer wall of the third pipe body 103 is provided with a plurality of pressure relief holes 9, and the plurality of pressure relief holes 9 are distributed along the axial direction of the third pipe body 103. By setting pressure relief holes 9 at the third pipe body 103, it can be further ensured that sufficient pressure relief can be carried out when the water pressure is too high.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A water inlet pipe for a washing machine, characterized in that: The pipe fitting has an inlet at one end and is closed at the other end. Multiple outlets are provided on the side wall of the pipe fitting along the axial direction. A pressure stabilizing component is movably disposed inside the pipe fitting and is used to move toward the closed end of the pipe fitting under the action of inlet water pressure; a reset component is connected at one end to the inner wall of the pipe fitting and at the other end to the pressure stabilizing component, and is used to provide a restoring force to the pressure stabilizing component to move toward the inlet of the pipe fitting when the inlet water pressure decreases; One end of the voltage stabilizer is located near the water outlet of the washing machine's water inlet pipe; one end of the reset component is connected to the closed end inside the pipe, and the other end of the reset component is connected to the other end of the voltage stabilizer. The pressure stabilizing component includes a pressure-blocking part, which is disposed near the water inlet of the pipe and is used to block the incoming water flow. The flow guide, connected to the pressure resisting part, is used to guide the inlet water flow towards the outlet. The flow guiding section includes a flow guiding body extending from the pressure-retaining part toward the closed end of the pipe fitting; a plurality of flow guiding plates, each of the flow guiding plates extending axially along the flow guiding body, and the plurality of flow guiding plates being circumferentially spaced around the flow guiding body; the plurality of flow guiding plates include straight flow guiding plates and arc-shaped flow guiding plates, and the straight flow guiding plates and arc-shaped flow guiding plates are alternately arranged circumferentially around the flow guiding body.

2. A washing machine water inlet pipe according to claim 1, characterized in that: The pressure-retaining part is a columnar structure, and one end of the pressure-retaining part is provided with a concave cavity, which is arranged opposite to the water inlet of the pipe fitting.

3. A washing machine water inlet pipe according to claim 2, characterized in that: The outer peripheral wall of the pressing part is provided with annular ribs.

4. A washing machine water inlet pipe according to claim 1, characterized in that: The pipe fitting is provided with a drain hole, which is located on the side of the outlet near the closed end of the pipe fitting.

5. A washing machine water inlet pipe according to claim 1, characterized in that: The multiple water outlets are arranged in at least three rows, with each water outlet in each row facing the same direction, and the water outlets in adjacent rows facing opposite directions.

6. A washing machine water inlet pipe according to claim 1, characterized in that: The pipe fitting includes a first pipe body, a second pipe body, and a third pipe body connected in sequence, and the diameters of the first pipe body, the second pipe body, and the third pipe body decrease in sequence. The pressure stabilizer is movably disposed in the second pipe body, and one end of the pressure stabilizer extends into the first pipe body and presses against and blocks the outlet of the washing machine's water inlet pipe.

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