Water inlet pipe for a drum washing machine

By introducing a guardrail frame and locking mechanism into the water inlet hose of a drum washing machine, the problem of poor water flow caused by folding and twisting of the water inlet hose is solved, achieving precise length adjustment and unobstructed flow of the water inlet hose.

CN224548779UActive Publication Date: 2026-07-24JIANGMEN QISHI ELECTRIC APPLIANCES CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGMEN QISHI ELECTRIC APPLIANCES CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The water inlet pipe of existing drum washing machines has a simple structure and single function. It is exposed to the outside and is prone to folding and twisting, resulting in poor water intake.

Method used

A water inlet pipe structure was designed, comprising an inlet housing, a guardrail frame, first and second water pipes, a connecting pipe, and a locking element. The guardrail frame forms a coiled chamber, and the locking element is used to adjust the length of the water pipe to ensure it fits the faucet distance and avoids folding and twisting.

Benefits of technology

It achieves precise length release of the water inlet pipe, preventing the pipe from scattering on the ground, ensuring smooth water intake, and improving ease of use and structural practicality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224548779U_ABST
    Figure CN224548779U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of drum washing machine accessories, and the utility model discloses a water inlet pipe of drum washing machine, including water inlet casing, guardrail frame is provided with two groups, installs in the peripheral surface of water inlet casing, and two groups guardrail frame and water inlet casing form coiled chamber, first water pipe, coiled in coiled chamber, first connecting joint is connected in one end of first water pipe, and the other end of first water pipe is linked with water inlet casing and is fixed, and the one side center of water inlet casing is rotatably installed through sealing bearing, and the water inlet pipe of drum washing machine can accurately release first water pipe to the length of being suitable, and makes its distance water faucet distance adaptation, avoids that water pipe is too long and scatters on the ground, or causes the folding, distortion of winding, and further influence the problem of water inlet unobstructed, and the design reduces the inconvenience of use, improves the use effect of water inlet pipe structure.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of drum washing machine accessories, specifically a water inlet pipe for a drum washing machine. Background Technology

[0002] With the improvement of people's living standards, household washing machines have become an indispensable necessity in life. As an important category of washing machine market, drum washing machines are loved by consumers for their high efficiency, energy saving and environmental protection. However, the design of the water inlet pipe has always been a technical problem that needs to be improved in the use of drum washing machines.

[0003] The existing water inlet pipe has a simple structure and single function, consisting only of a water pipe and connectors at both ends. One set of connectors is connected to the washing machine's water inlet, and the other set is installed on the faucet. The entire water inlet pipe is exposed outside the washing machine. The long water inlet pipe is scattered on the ground and is prone to folding and twisting, resulting in poor water intake. Therefore, we have proposed a water inlet pipe for drum washing machines to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a water inlet pipe for a drum washing machine, which solves the problems of the entire water inlet pipe being exposed outside the washing machine, the long water inlet pipe being scattered on the ground, and being prone to folding and twisting, resulting in poor water intake.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water inlet pipe for a drum washing machine, comprising a water inlet housing;

[0006] The guardrail frame is provided in two sets and installed on the outer surface of the water inlet shell. The two sets of guardrail frames and the water inlet shell form a coiled cavity.

[0007] The first water pipe is coiled inside the coiled chamber;

[0008] The first connecting joint is connected to one end of the first water pipe, and the other end of the first water pipe is connected and fixed to the water inlet shell;

[0009] The connecting pipe is rotatably mounted at the center of one side of the water inlet housing via a sealed bearing;

[0010] The second water pipe is fixed at the end of the connecting pipe away from the water inlet housing, and the other end of the second water pipe is connected to a second connecting joint.

[0011] A fixed bracket is attached to the surface of the connecting pipe;

[0012] The locking element is located on the side of the water inlet housing away from the connecting pipe and is connected to the housing of the washing machine.

[0013] Preferably, the surface of the water inlet shell is fixedly connected to a pipe body, and the pipe body has an L-shaped structure design, with the end of the first water pipe away from the first connecting joint fixed to the pipe body.

[0014] Preferably, the first water pipe and the second water pipe are both fixed to one end of the first connecting joint and the second connecting joint respectively by clamps, and the guardrail frame is welded and fixed to the water inlet shell.

[0015] Preferably, the connecting pipe is made of stainless steel, and one end of the connecting pipe extends into the water inlet housing.

[0016] Preferably, the fixing bracket is fitted onto the surface of the connecting pipe through a through hole and welded to the connecting pipe for fixation.

[0017] Preferably, the locking element includes a rotating pin fixed to the outer surface of the water inlet housing and a locking sleeve that slides on the surface of the rotating pin. One end of the locking sleeve is fixed with an annular disc. A spring is wound around the surface of the rotating pin. The two ends of the spring are fixedly connected to the annular disc and the water inlet housing, respectively. A symmetrically arranged limiting rod is welded to the surface of the water inlet housing near the annular disc. The annular disc slides on the surface of the limiting rod through a sliding hole. A rectangular hole is provided on the rotating pin, and a horizontal plate is provided inside the rectangular hole. The horizontal plate is fixed to the locking sleeve. A pressing pin is fixedly installed on the other side of the horizontal plate. A moving hole adapted to the pressing pin is provided inside the rotating pin, and the pressing pin can slide within the moving hole of the rotating pin.

[0018] Preferably, the rotating pin and pressing pin are located outside the drum washing machine housing, and the drum washing machine housing has a limiting locking hole adapted to the locking pin sleeve, and the locking pin sleeve can be located inside the limiting locking hole.

[0019] Beneficial effects

[0020] This utility model provides a water inlet pipe for a drum washing machine. Compared with the prior art, it has the following advantages:

[0021] Beneficial effects:

[0022] The water inlet hose of this drum washing machine can be precisely released to the appropriate length and its distance from the faucet is adapted to avoid the water hose being too long and falling on the ground, or being tangled and twisted, thus affecting the smooth flow of water. This design reduces the inconvenience during use and improves the performance of the water inlet hose structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a rear view of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the locking component of this utility model.

[0026] In the diagram: 101, water inlet housing; 102, guardrail frame; 103, first water pipe; 104, first connecting joint; 105, connecting pipe; 106, fixed bracket; 107, second water pipe; 108, second water pipe; 2, locking element; 201, rotating pin; 202, locking pin sleeve; 203, annular disc; 204, spring; 205, limiting rod; 206, horizontal plate; 207, pressing pin. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-3 As shown:

[0029] A water inlet pipe for a drum washing machine includes a water inlet housing 101;

[0030] Two sets of guardrail frames 102 are provided and installed on the outer surface of the water inlet housing 101. The two sets of guardrail frames 102 and the water inlet housing 101 form a coiled chamber.

[0031] The first water pipe 103 is coiled in the coiled chamber;

[0032] The first connecting joint 104 is connected to one end of the first water pipe 103. The surface of the water inlet housing 101 is fixedly connected to the pipe body, and the pipe body has an L-shaped structure design. The end of the first water pipe 103 away from the first connecting joint 104 is fixed to the pipe body.

[0033] The connecting pipe 105 is rotatably installed at the center of one side of the water inlet housing 101 via a sealed bearing. The connecting pipe 105 is made of stainless steel, and one end of the connecting pipe 105 extends into the water inlet housing 101.

[0034] The second water pipe 107 is fixed to the end of the connecting pipe 105 away from the water inlet housing 101, and the other end of the second water pipe 107 is connected to the second connecting joint 108.

[0035] The first water pipe 103 and the second water pipe 107 are respectively fixed to one end of the first connecting joint 104 and the second connecting joint 108 by clamps, and the guardrail frame 102 is welded and fixed to the water inlet shell 101.

[0036] The fixed bracket 106 is sleeved on the surface of the connecting pipe 105 through the through hole and welded to the connecting pipe 105. The fixed bracket 106 has mounting holes at both ends.

[0037] Locking component 2 is located on the side of the water inlet housing 101 away from the connecting pipe 105 and is connected to the housing of the washing machine. Locking component 2 includes a rotating pin 201 fixed to the outer surface of the water inlet housing 101 and a locking sleeve 202 that slides on the surface of the rotating pin 201. One end of the locking sleeve 202 is fixed with an annular disc 203. A spring 204 is wound around the surface of the rotating pin 201. Both ends of the spring 204 are fixedly connected to the annular disc 203 and the water inlet housing 101, respectively. The surface of the water inlet housing 101 is close to the annular disc 203. A symmetrically arranged limiting rod 205 is welded at the position of the annular disc 203. The annular disc 203 slides on the surface of the limiting rod 205 through the sliding hole. A rectangular hole is opened on the rotating pin 201, and a horizontal plate 206 is set in the rectangular hole. The horizontal plate 206 is fixed on the locking pin sleeve 202. A pressing pin 207 is fixedly installed on the other side of the horizontal plate 206. A moving hole adapted to the pressing pin 207 is opened inside the rotating pin 201. The pressing pin 207 can slide in the moving hole opened in the rotating pin 201.

[0038] The rotating pin 201 and pressing pin 207 are located outside the drum washing machine housing, and the drum washing machine housing is provided with a limiting locking hole that matches the locking pin sleeve 202. The locking pin sleeve 202 can be located inside the limiting locking hole.

[0039] In this implementation plan: During use, the fixing bracket 106 is welded to the connecting pipe 105, and the fixing bracket 106 has mounting holes at both ends. The fixing bracket 106 can be firmly installed inside the washing machine by passing screws through the mounting holes.

[0040] Meanwhile, the second connecting connector 108 is snapped into the internal water inlet of the drum washing machine, realizing the connection between the second water pipe 107 and the water inlet.

[0041] The outer shell of the drum washing machine has a water pipe perforation. The diameter of the water pipe perforation is smaller than the outer diameter of the first connecting joint 104, but larger than the outer diameter of the first water pipe 103. In this way, the first connecting joint 104 can be located outside the drum washing machine and outside the perforation. Since the diameter of the water pipe perforation is smaller than the diameter of the first connecting joint 104, it can prevent the first connecting joint 104 from being pulled into the washing machine shell, which would make it inconvenient to pull the first connecting joint 104 later.

[0042] Meanwhile, the rotating pin 201 and the pressing pin 207 are located outside the drum washing machine housing, and the drum washing machine housing is provided with a limiting locking hole that matches the locking pin sleeve 202. The locking pin sleeve 202 can be located inside the limiting locking hole.

[0043] When this device is in use, pressing the pressing pin 207 applies pressure to the horizontal plate 206; the horizontal plate 206, under pressure, applies pressure to the locking pin sleeve 202, which compresses the spring 204 via the annular disc 203; the annular disc 203 can slide on the limiting rod 205, which limits the movement of the annular disc 203, ensuring its stability; as the locking pin sleeve 202 moves, it can also be removed from the limiting locking hole in the drum washing machine housing, thereby releasing the control over the rotating pin 201 and the water inlet housing 10. 1. Locking of components; then, the rotating pin 201 can be rotated to drive the water inlet housing 101 and the first water pipe 103 to rotate synchronously; the water inlet housing 101 rotates on the connecting pipe 105 through the sealed bearing, and the rotation of the water inlet housing 101 releases the first water pipe 103 and pulls the first connecting joint 104, driving the first water pipe 103 to be pulled out of the coiled cavity formed by the guardrail frame 102 and the water inlet housing 101 until one end of the first connecting joint 104 is connected to the faucet (not shown in the figure), then the rotation of the rotating pin 201 can be stopped;

[0044] Subsequently, when the pressure on the pressing pin 207 is released, the compressed spring 204 will rebound, driving the annular disc 203 to insert the locking pin sleeve 202 into the limiting lock hole; during this process, the locking pin sleeve 202 can be properly aligned with the limiting lock hole by finely adjusting the rotating pin 201, thereby achieving the position locking of the water inlet housing 101.

[0045] This structural design allows for precise release of the first water pipe 103 to the appropriate length and ensures it is positioned at a suitable distance from the faucet. This prevents the water pipe from becoming too long and scattering on the ground, or from folding or twisting due to entanglement, which could affect the smooth flow of water. This design reduces inconvenience during use and improves the performance of the water inlet pipe structure.

[0046] Next, turn on the tap, and water flows into the first water pipe 103 through the tap, then into the water inlet housing 101. In the water inlet housing 101, the water flows into the second water pipe 107 through the connecting pipe 105, and then into the washing chamber of the washing machine through the second connecting joint 108 and the water inlet of the washing machine, thus completing the water intake operation.

[0047] An L-shaped tube is fixed to the surface of the water inlet housing 101. The bend of the tube is adapted to the overall water pipe winding trajectory, avoiding the problem of folding when the first water pipe 103 is connected to the tube, which would affect the smooth flow of water. This design further improves the practicality of the structure.

[0048] It should be noted that a suitable storage and sealing isolation cavity is designed in the shell inside the drum washing machine, so that the water inlet shell 101, the guardrail frame 102 and the first water pipe 103 are all located in the storage and sealing isolation cavity. The specific dimensions of this structure can be flexibly designed for the inside of the drum washing machine and can be flexibly installed.

[0049] Meanwhile, the contents of the first connecting joint 104 and the second connecting joint 108 not described in detail in this specification are all prior art known to those skilled in the art and can be used as prior art references, and will not be described in detail.

[0050] The working principle and usage process of this utility model are as follows: During use, the fixed bracket 106 has mounting holes at both ends, allowing screws to pass through these holes and securely install the fixed bracket 106 inside the washing machine. Simultaneously, the second connecting connector 108 engages with the internal water inlet of the drum washing machine, connecting the second water pipe 107 to the water inlet. When this device is in use, pressing the pressing pin 207 applies pressure to the horizontal plate 206. The horizontal plate 206, under pressure, applies pressure to the locking pin sleeve 202, which compresses the spring 204 via the annular disc 203. As the locking pin sleeve 202 moves, it can be disengaged from the limiting locking hole in the drum washing machine casing, thereby releasing the locking of components such as the rotating pin 201 and the water inlet casing 101. Then, the rotating pin can be rotated. 201, driving the water inlet housing 101 and the first water pipe 103 to rotate synchronously; the water inlet housing 101 rotates on the connecting pipe 105 through the sealed bearing, releasing the first water pipe 103 through the rotation of the water inlet housing 101, and pulling the first connecting joint 104, driving the first water pipe 103 to be pulled out of the coiled cavity formed by the guardrail frame 102 and the water inlet housing 101, until one end of the first connecting joint 104 is connected to the faucet (not shown in the figure), then the rotation of the rotating pin 201 can be stopped; then, the pressing of the pressing pin 207 is released, the compressed spring 204 will rebound, driving the annular disc 203 to drive the locking pin sleeve 202 to be inserted into the limiting lock hole; next, the faucet is turned on, and water flows into the first water pipe 103 through the faucet, and then enters the water inlet housing 101. Water flows into the second water pipe 107 through the connecting pipe 105 in the water inlet housing 101, and then enters the washing chamber of the washing machine through the second connecting joint 108 and the water inlet of the washing machine, thus completing the water inlet operation.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water inlet pipe for a drum washing machine, characterized in that: Including the inlet shell (101); Two sets of guardrail frames (102) are provided and installed on the outer surface of the water inlet shell (101). The two sets of guardrail frames (102) and the water inlet shell (101) form a coiled chamber. The first water pipe (103) is coiled in the coiled chamber; The first connecting joint (104) is connected to one end of the first water pipe (103), and the other end of the first water pipe (103) is connected and fixed to the water inlet housing (101); The connecting pipe (105) is rotatably mounted at the center of one side of the water inlet housing (101) via a sealed bearing; The second water pipe (107) is fixed at one end of the connecting pipe (105) away from the water inlet housing (101), and the other end of the second water pipe (107) is connected to a second connecting joint (108); A fixed bracket (106) is attached to the surface of the connecting tube (105); The locking element (2) is located on the side of the water inlet housing (101) away from the connecting pipe (105) and is connected to the housing of the washing machine.

2. The water inlet pipe of the drum washing machine according to claim 1, characterized in that: The surface of the water inlet housing (101) is fixedly connected to a pipe body, and the pipe body has an L-shaped structure design. The end of the first water pipe (103) away from the first connecting joint (104) is fixed to the pipe body.

3. The water inlet pipe of the drum washing machine according to claim 1, characterized in that: The first water pipe (103) and the second water pipe (107) are fixed to one end of the first connecting joint (104) and the second connecting joint (108) respectively by clamps, and the guardrail frame (102) is welded and fixed to the water inlet shell (101).

4. The water inlet pipe of the drum washing machine according to claim 1, characterized in that: The connecting pipe (105) is made of stainless steel, and one end of the connecting pipe (105) extends into the water inlet housing (101).

5. The water inlet pipe of the drum washing machine according to claim 1, characterized in that: The fixed bracket (106) is sleeved on the surface of the connecting pipe (105) through the through hole and welded to the connecting pipe (105).

6. The water inlet pipe of the drum washing machine according to claim 1, characterized in that: The locking component (2) includes a rotating pin (201) fixed to the outer surface of the water inlet housing (101) and a locking sleeve (202) that slides on the surface of the rotating pin (201). One end of the locking sleeve (202) is fixed with an annular disk (203). A spring (204) is wound around the surface of the rotating pin (201). The two ends of the spring (204) are fixedly connected to the annular disk (203) and the water inlet housing (101) respectively. Symmetrically arranged limiting elements are welded to the surface of the water inlet housing (101) near the annular disk (203). The rod (205) and the annular disk (203) slide on the surface of the limiting rod (205) through the sliding hole. The rotating pin (201) has a rectangular hole and a horizontal plate (206) is provided in the rectangular hole. The horizontal plate (206) is fixed on the locking pin sleeve (202). A pressing pin (207) is fixedly installed on the other side of the horizontal plate (206). The rotating pin (201) has a moving hole that matches the pressing pin (207). The pressing pin (207) can slide in the moving hole of the rotating pin (201).

7. The water inlet pipe of the drum washing machine according to claim 6, characterized in that: The rotating pin (201) and pressing pin (207) are located outside the drum washing machine housing, and the drum washing machine housing is provided with a limiting locking hole that is compatible with the locking pin sleeve (202). The locking pin sleeve (202) can be located inside the limiting locking hole.