Drain valve structure of washing machine and washing machine
By designing an L-shaped drain pipe and a telescopic mechanism for the drain valve structure, the problem of easy damage to the drain outlet control valve of industrial washing machines was solved, realizing automatic on/off control and sealing protection, thus improving the reliability and convenience of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YASEN WASH EQUIP CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-28
AI Technical Summary
The outlet control valve of existing industrial washing machines is easily damaged by corrosive liquids, resulting in damage to the sealing ring and inconvenience in operation.
A drain valve structure including an L-shaped drain pipe and a telescopic mechanism was designed. Corrosive liquids are prevented from entering the cylinder by a sealing disc and an X-shaped sealing ring. The on/off control of the drain outlet is achieved by combining an automatic control module.
It realizes automatic on/off control of the washing machine outlet, prevents corrosive liquids from damaging the cylinder seal ring, and improves the reliability and ease of operation of the equipment.
Smart Images

Figure CN224173069U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of washing machine technology, and in particular to a drain valve structure for a washing machine and a washing machine. Background Technology
[0002] Currently, industrial washing machines are equipped with control valves at the outlet to control the opening and closing of the outlet. There are two types of control valves: manual and automatic. Manual operation is inconvenient to control and use. Automatic operation uses telescopic devices such as cylinders. Since the liquid discharged from the outlet contains corrosive liquid, during operation, the corrosive liquid will enter the cylinder as the cylinder retracts, damaging the cylinder seals and causing cylinder damage. Summary of the Invention
[0003] According to an embodiment of the present invention, a drain valve structure for a washing machine is provided, comprising:
[0004] The washing machine tub has a drain outlet.
[0005] The valve body has a first connecting flange at one end, which is connected to the washing machine drum. The valve body is connected to the outlet, and the other end of the valve body has a second connecting flange.
[0006] Drain pipe, one end of which is connected to the valve body;
[0007] The control module is connected to the second connecting flange at the other end of the valve body and is used to control the opening and closing of the discharge port.
[0008] Furthermore, the drain pipe is L-shaped.
[0009] Furthermore, the drain pipe and valve body are integrally formed.
[0010] Furthermore, the control module includes:
[0011] The sealing plate is connected to the second connecting flange at the other end of the valve body.
[0012] The telescopic mechanism is connected to the sealing plate, and the output end of the telescopic mechanism passes through the sealing plate.
[0013] The sealing disc is connected to the output end of the telescopic mechanism and is used to seal the discharge port.
[0014] Furthermore, a sealing gasket is provided at the contact point between the sealing disc and the outlet.
[0015] Furthermore, the telescopic mechanism includes:
[0016] Sealing seat, the sealing seat is connected to the sealing plate;
[0017] A support tube, one end of which is connected to a sealing seat, and a through hole is provided on the support tube;
[0018] Connecting plate, which is connected to the other end of the support tube;
[0019] The expansion joint is connected to the connecting plate. The output end of the expansion joint passes through the connecting plate, the support pipe and the sealing seat in sequence, and then connects to the sealing plate.
[0020] Furthermore, the telescoping mechanism is a cylinder.
[0021] Furthermore, two X-shaped sealing rings are provided between the output end of the expansion joint and the sealing seat.
[0022] Furthermore, the telescopic mechanism also includes: reinforcing ribs, which are connected to the sealing plate, support tube, and connecting plate.
[0023] According to another embodiment of the present invention, a washing machine is provided, which includes the drain valve structure of the washing machine of the previous embodiment.
[0024] The drain valve structure of a washing machine according to an embodiment of the present utility model has the following beneficial effects:
[0025] 1. It can automatically control the on / off state of the washing machine's outlet, making it easy to operate and practical;
[0026] 2. By connecting the output end of the expansion joint to the connecting plate, support pipe and sealing seat in sequence, and then connecting it to the sealing plate, corrosive liquid discharged from the outlet can be prevented from entering the cylinder when the cylinder retracts, thus protecting the cylinder's sealing ring and preventing cylinder damage.
[0027] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the drain valve structure of a washing machine in the closed state according to an embodiment of the present invention.
[0029] Figure 2 This is a schematic diagram of the drain valve structure of a washing machine in the open state according to an embodiment of the present invention.
[0030] Figure 3 This is a front sectional view of the sealing seat of a drain valve structure of a washing machine according to an embodiment of the present invention.
[0031] Figure 4 This is a front sectional view of the valve body of a drain valve structure for a washing machine according to an embodiment of the present invention. Detailed Implementation
[0032] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.
[0033] First, combine Figures 1-4 This invention describes a drain valve structure for a washing machine according to an embodiment of the present invention, used for on / off control of the drain outlet 101 of the washing machine, and has a wide range of applications.
[0034] like Figures 1-4 As shown in the figure, a drain valve structure for a washing machine according to an embodiment of the present invention includes a washing machine drum 100, a valve body 200, a drain pipe 300, and a control module.
[0035] Specifically, such as Figures 1-2 As shown, the washing machine drum 100 is provided with a drain outlet 101 for discharging waste liquid after the washing machine has finished washing.
[0036] Specifically, such as Figures 1-2 As shown in Figure 4, one end of the valve body 200 is provided with a first connecting flange 201, which is connected to the washing machine tub 100. The valve body 200 is connected to the outlet 101. The other end of the valve body 200 is provided with a second connecting flange 202.
[0037] Specifically, such as Figures 1-2 As shown in Figure 4, one end of the drain pipe 300 is connected to the valve body 200 to drain the waste liquid located inside the valve body 200. The drain pipe 300 is L-shaped and is integrally formed with the valve body 200 to improve reliability.
[0038] Specifically, such as Figures 1-2 As shown in Figure 4, the control module is connected to the second connecting flange 202 at the other end of the valve body 200 and is used to control the opening and closing of the discharge port 101. The control module includes: a sealing plate 401, a telescopic mechanism, and a sealing disc 403. The sealing plate 401 is connected to the second connecting flange 202 at the other end of the valve body 200; the telescopic mechanism is connected to the sealing plate 401, and the output end of the telescopic mechanism passes through the sealing plate 401; the sealing disc 403 is connected to the output end of the telescopic mechanism and is used to seal the discharge port 101. By controlling the operation of the telescopic mechanism, the sealing disc 403 is moved away from or closer to the discharge port 101, thereby realizing the opening and closing of the discharge port 101.
[0039] Furthermore, such as Figures 1-2 As shown in Figure 4, a sealing gasket 404 is also provided at the contact point between the sealing disc 403 and the outlet 101 to ensure sealing performance.
[0040] Furthermore, such as Figures 1-4As shown, the telescopic mechanism includes: a sealing seat 4021, a support tube 4022, a connecting plate 4023, and a telescopic device 4024. The sealing seat 4021 is connected to the sealing plate 401; one end of the support tube 4022 is connected to the sealing seat 4021, and the support tube 4022 has a through hole; the connecting plate 4023 is connected to the other end of the support tube 4022; the telescopic device 4024 is connected to the connecting plate 4023, the telescopic device 4024 is a cylinder, and the output end of the telescopic device 4024 passes through the connecting plate 4023, the support tube 4022, and the sealing seat 4021 in sequence, and is connected to the sealing plate 403. This prevents corrosive liquid discharged from the outlet 101 from entering the cylinder when the cylinder retracts, protecting the cylinder's sealing ring and preventing cylinder damage.
[0041] Furthermore, such as Figures 1-4 As shown, two X-shaped sealing rings 4025 are provided between the output end of the expansion joint 4024 and the sealing seat 4021 to improve the sealing performance.
[0042] Furthermore, such as Figures 1-2 As shown in Figure 3, the telescopic mechanism also includes a reinforcing rib 4026, which is connected to the sealing plate 401, the support tube 4022, and the connecting plate 4023 to improve stability.
[0043] In use: By controlling the expansion joint 4024, the expansion joint 4024 can be extended or retracted, thereby moving the sealing disc 403 away from or closer to the discharge port 101, thus realizing the opening and closing of the discharge port 101.
[0044] As described above, the drain valve structure of a washing machine according to an embodiment of the present invention has the following beneficial effects:
[0045] 1. It can realize automatic on / off control of the washing machine's outlet 101, which is easy to operate and practical.
[0046] 2. By connecting the output end of the telescopic device 4024 through the connecting plate 4023, the support pipe 4022, and the sealing seat 4021 in sequence, and then connecting it to the sealing disc 403, the corrosive liquid discharged from the outlet 101 can be prevented from entering the cylinder when the cylinder retracts, thus protecting the cylinder's sealing ring and preventing cylinder damage.
[0047] The above combined with the appendix Figures 1-4 A drain valve structure for a washing machine according to an embodiment of the present invention is described. Furthermore, the present invention can also be applied to washing machines.
[0048] According to another embodiment of the present invention, a washing machine is provided, which includes the drain valve structure of the washing machine of the previous embodiment, to meet the usage requirements and automatically realize the on / off control of the drain outlet 101.
[0049] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0050] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A drain valve structure for a washing machine, characterized in that, Include: A washing machine tub, wherein the washing machine tub is provided with a drain outlet; The valve body has a first connecting flange at one end, which is connected to the washing machine tub, and the valve body is connected to the outlet. The other end of the valve body has a second connecting flange. A drain pipe, one end of which is connected to the valve body; A control module is connected to a second connecting flange at the other end of the valve body and is used to control the opening and closing of the discharge port.
2. The drain valve structure of the washing machine as described in claim 1, characterized in that, The drain pipe is L-shaped.
3. The drain valve structure of the washing machine as described in claim 2, characterized in that, The drain pipe and the valve body are integrally formed.
4. The drain valve structure of the washing machine as described in claim 1, characterized in that, The control module includes: A sealing plate, which is connected to a second connecting flange at the other end of the valve body; A telescopic mechanism is connected to the sealing plate, and the output end of the telescopic mechanism passes through the sealing plate; A sealing disc, which is connected to the output end of the telescopic mechanism, is used to seal the outlet.
5. The drain valve structure of the washing machine as described in claim 4, characterized in that, A sealing gasket is also provided at the contact point between the sealing disc and the outlet.
6. The drain valve structure of the washing machine as described in claim 4, characterized in that, The telescopic mechanism includes: Sealing seat, the sealing seat being connected to the sealing plate; A support tube, one end of which is connected to the sealing seat, and a through hole is provided on the support tube; A connecting plate, which is connected to the other end of the support tube; The expansion joint is connected to the connecting plate, and the output end of the expansion joint passes through the connecting plate, the support tube and the sealing seat in sequence, and is then connected to the sealing disc.
7. The drain valve structure of the washing machine as described in claim 6, characterized in that, The telescopic device is a cylinder.
8. The drain valve structure of the washing machine as described in claim 6, characterized in that, Two X-shaped sealing rings are provided between the output end of the expansion joint and the sealing seat.
9. The drain valve structure of the washing machine as described in claim 6, characterized in that, The telescopic mechanism further includes a reinforcing rib, which is connected to the sealing plate, the support tube, and the connecting plate.
10. A washing machine, characterized in that, The drain valve structure of the washing machine as described in any one of claims 1 to 9 is included.