Quick-release drainage structure and washing device

Abstract

The utility model relates to the field of drainage structures, in particular to a quick-release drainage structure and a washing device, the quick-release drainage structure is applied to a double-layer washing bucket, the double-layer washing bucket comprises an outer cylinder and an inner cylinder, the inner cylinder is embedded in the outer cylinder, the bottom of the outer cylinder is connected with a driving block, and the driving block is in driving connection with an external driving device. A mounting channel is formed in the driving block, a water outlet pipe is arranged at the bottom of the inner cylinder, and the water outlet pipe penetrates through the outer cylinder to be communicated with the mounting channel; the core comprises a core body, the core body is embedded in the mounting channel; a drainage channel is formed in the core body, the drainage channel is communicated with the water outlet pipe, the core body is installed in the installation channel in an embedded mode, the inner cylinder is located on the upper portion to limit the core body, it is ensured that the core body is stably located at the drainage position, and when the inner cylinder is taken down, the core body is in a detachable state; the core body can be quickly taken out for cleaning or replacing the filter screen, so that the connection between the core body and the washing device is effectively simplified, and the installation and production difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drainage structure field, concretely relates to a quick-release drainage structure and washing device. BACKGROUND

[0002] The drainage structure of the washing equipment is a complex and delicate system, which mainly includes a drainage pump (or a drainage valve and a drainage valve tractor), a drainage pipe and a drainage port, etc. These parts work together to ensure that the washing equipment can effectively drain wastewater during washing and dehydration.

[0003] In conventional washing equipment, the drainage system adopts the structure of a drainage valve and a drainage valve tractor. The drainage valve is located at the bottom or side of the washing machine and is directly connected with the drainage pipe. Its main function is to open the valve after receiving the drainage instruction, so that the wastewater in the washing machine can be smoothly drained. The drainage valve tractor is a key component for controlling the opening and closing of the drainage valve. It is usually driven by an electromagnet or an electric motor and connected with the drainage valve through a pull rod or a traction steel wire rope.

[0004] However, the conventional drainage structure needs to be fixedly connected with the washing equipment for its own stability, which leads to the complexity of disassembling and cleaning the drainage structure, and the opening of the drainage valve driven by the tractor has a great influence on the drainage efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a quick-release drainage structure and washing device, which aims to improve the problem that the drainage structure is complex to disassemble and clean, and the opening of the drainage valve driven by the tractor has a great influence on the drainage efficiency.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A quick-release drainage structure is applied to a double-layer washing drum, which includes an outer cylinder and an inner cylinder. The inner cylinder is embedded in the outer cylinder. A driving block is connected to the bottom of the outer cylinder. The driving block is drivingly connected with an external driving device. An installation channel is formed in the driving block. A water outlet pipe is arranged at the bottom of the inner cylinder and communicates with the installation channel through the outer cylinder.

[0008] It includes a core,

[0009] The core is embedded in the installation channel. A drainage channel is formed in the core and communicates with the water outlet pipe.

[0010] Further, a constant-pressure drainage valve is arranged in the drainage channel, and an external control device controls the opening and closing of the constant-pressure drainage valve,

[0011] The constant-pressure drainage valve includes a valve body, a valve core and a reset member,

[0012] The valve body has an upper drain outlet at the top and a guide channel and a lower drain outlet at the bottom, with the upper drain outlet and the guide channel located in the same extending direction;

[0013] The valve core includes a valve head and a valve stem, which are located inside the valve body. The top end of the valve stem is connected to the valve head, and the bottom end of the valve stem passes through the guide channel and extends outward. The reset member is arranged around the circumference of the valve stem, and the top and bottom ends of the reset member abut against the valve head and the valve body, respectively. The reset member pushes the valve head to abut against the upper drain port.

[0014] Furthermore, the top of the valve head is provided with a lower contact surface, which slopes outward from the inner side of the top surface of the valve head to the outer side of the lower part of the valve head. The lower opening of the upper drain outlet is provided with an upper contact surface, which is inclined and has the same inclination angle as the lower contact surface.

[0015] Furthermore, there are multiple drain outlets, which surround the periphery of the guide channel, and the upper end of each drain outlet extends to the upper part of the valve body.

[0016] Furthermore, the upper part of the drainage channel is provided with an inner sealing ring, the water outlet pipe extends into the drainage channel, and the inner sealing ring surrounds the periphery of the water outlet pipe.

[0017] Furthermore, an inner sealing groove is provided at the upper part of the drainage channel, and the inner sealing ring is embedded in the inner sealing groove.

[0018] Furthermore, the inner sealing ring includes an inner body, and a first sealing arm and a second sealing arm are provided at both ends of the bottom of the inner body. The first sealing arm and the second sealing arm are distributed in a figure-eight shape. The bottom end of the first sealing arm abuts against the top of the inner sealing groove, and the bottom end of the second sealing arm abuts against the top of the side wall of the water outlet pipe.

[0019] Furthermore, it also includes an outer sealing ring, which is interference-fitted between the outer side of the core and the inner sidewall of the mounting channel.

[0020] Furthermore, a limiting protrusion ring is provided at the lower part of the drainage channel, and the constant pressure drainage valve is embedded in the drainage channel, with the bottom surface of the constant pressure drainage valve abutting against the top surface of the limiting protrusion ring.

[0021] To achieve the above objectives, the present invention also adopts the following technical solution:

[0022] A washing device that utilizes the aforementioned quick-release drainage structure.

[0023] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0024] 1. The core is installed in the installation channel by embedding. The inner cylinder is located above to limit the core and ensure that the core is stably in the drainage position to filter the wastewater. When the inner cylinder is removed, the core is in a detachable state, which can be quickly removed for cleaning or replacement of the filter screen. This effectively simplifies the connection between the core and the washing device and reduces the difficulty of assembly, cleaning and installation.

[0025] 2. The drainage pump uses negative pressure to pull the valve core downward to compress the reset component, opening the upper drainage port to drain water. After the pump stops working, the reset component drives the valve head upward to block the lower opening of the upper drainage port, sealing the upper opening and stopping drainage. No connection to the valve body is required during the control process, resulting in high drainage efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the top structure of the quick-release drainage structure described in this utility model;

[0027] Figure 2 This is a schematic diagram of the bottom structure of the quick-release drainage structure described in this utility model;

[0028] Figure 3 This is a cross-sectional schematic diagram of the quick-release drainage structure described in this utility model;

[0029] Figure 4 This is a schematic diagram of the pressure-regulating drain valve structure of the quick-release drainage structure described in this utility model;

[0030] Figure 5 This is a schematic diagram of the valve core structure of the quick-release drainage structure described in this utility model;

[0031] Figure 6 This is a cross-sectional structural diagram of the quick-release drainage structure described in this utility model in its application state.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Core; 11. Outer sealing ring; 12. Inner sealing ring; 121. Inner body; 122. First sealing arm; 123. Second sealing arm; 13. Filter screen; 14. Outer sealing groove; 15. Drainage channel; 151. Inner sealing groove; 152. Limiting protrusion ring;

[0034] 2. Constant pressure drain valve; 21. Valve body; 211. Upper drain port; 2111. Upper mating surface; 212. Lower drain port; 213. Guide channel; 214. Cavity; 22. Valve core; 221. Valve head; 2211. Lower mating surface; 222. Valve stem; 23. Reset component;

[0035] 3. Outer cylinder; 4. Inner cylinder; 41. Water outlet pipe; 5. Drive block; 51. Installation channel. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0037] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0039] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Example

[0041] Please refer to Figures 1-6 As shown, this embodiment provides a quick-release drainage structure. Please refer to... Figure 6 As shown, this is applied to a double-walled washing tub, which includes an outer tub 3 and an inner tub 4. The inner tub 4 is embedded inside the outer tub 3. A drive block 5 is connected to the bottom of the outer tub 3, and the drive block 5 is driven by an external drive device. An installation channel 51 is provided on the drive block 5, and a water outlet pipe 41 is provided at the bottom of the inner tub 4. The water outlet pipe 41 passes through the outer tub 3 and connects to the installation channel 51.

[0042] Specifically, the quick-release drainage structure includes a core 1, which is embedded in the installation channel 51. A drainage channel 15 is provided on the core 1, and the drainage channel 15 is connected to the water outlet pipe 41.

[0043] The core 1 is installed in the installation channel 51 by embedding. The inner tube 4 is located above and limits the core 1 to ensure that the core 1 is stably in the drainage position. When the inner tube 4 is removed, the core 1 is in a detachable state and can be directly taken out for cleaning or replacement, which effectively reduces the complexity of the connection structure between the core 1 and the washing device and reduces the difficulty of assembly and cleaning.

[0044] Please refer to Figures 3-6 As shown, a constant pressure drain valve 2 is provided in the drain channel 15. An external control device controls the opening and closing of the constant pressure drain valve 2 to control the washing device to drain and store water. The constant pressure drain valve 2 includes a valve body 21, a valve core 22, and a reset member 23. The top of the valve body 21 has an upper drain port 211, and the bottom of the valve body 21 has a guide channel 213 and a lower drain port 212. The upper drain port 211 and the guide channel 213 are located in the same extension direction. The valve core 22 includes a valve head 221 and a valve stem 222. The valve head 221 and the valve stem 222 are located in the internal cavity 214 of the valve body 21. The top end of the valve stem 222 is connected to the valve head 221, and the bottom end of the valve stem 222 passes through the guide channel 213 and extends outward. The reset member 23 is arranged around the circumference of the valve stem 222. The top and bottom ends of the reset member 23 abut against the valve head 221 and the valve body 21, respectively. The reset member 23 pushes the valve head 221 to abut against the upper drain port 211. In this embodiment, the reset member 23 is a spring, but it can also be other elastic structures.

[0045] In this embodiment, the external control device is a drain pump. The drain pump uses negative pressure to pull the valve core 22 downward, compressing the reset member 23 and opening the upper drain port 211 to drain water. After the pump stops working, the reset member 23 drives the valve head 221 upward to abut against the lower opening of the upper drain port 211, sealing the upper opening and stopping the drainage. No connection to the valve body 21 is required during the control process, resulting in high drainage efficiency. By adapting springs of different specifications, the water pressure that the constant pressure drain valve can withstand can be flexibly adjusted. When drainage is needed, only a small suction force needs to be applied by the external control device to achieve drainage.

[0046] Please refer to Figure 3 As shown, furthermore, the top of the valve head 221 is provided with a lower contact surface 2211, which slopes outward from the inner side of the top surface of the valve head 221 to the outer side of the lower part of the valve head 221. An upper contact surface 2111 is provided at the lower opening of the upper drain port 211. The upper contact surface 2111 is inclined and has the same inclination angle as the lower contact surface 2211. The inclined lower contact surface 2211 and upper contact surface 2111 effectively increase the contact area between the valve head 221 and the upper drain port 211, improve the sealing effect of the upper drain port 211, prevent water leakage during water storage, and improve the cleaning effect of the washing equipment.

[0047] Furthermore, there are multiple drain outlets 212, which are arranged around the periphery of the guide channel 213. In this embodiment, there are four drain outlets 212, which are spaced apart around the periphery of the guide channel 213, improving the drainage efficiency of the valve body 21 while ensuring good structural strength. Similarly, more or fewer drain outlets 212 can be provided. In this embodiment, the upper end of the drain outlet 212 extends to the upper part of the valve body 21, increasing the opening size of the drain outlet 212 and further improving the drainage efficiency of the valve body 21.

[0048] In this embodiment, a limiting protrusion ring 152 is provided at the lower part of the drainage channel 15, and the constant pressure drainage valve 2 is embedded in the drainage channel 15, with the bottom surface of the constant pressure drainage valve 2 abutting against the top surface of the limiting protrusion ring 152. The limiting protrusion ring 152 supports the constant pressure drainage valve 2, ensuring the stability of the constant pressure drainage valve 2 during the air extraction process of the drainage pump. At the same time, the constant pressure drainage valve 2 is also connected to the core 1 by an embedded method, without the need for other connecting structures, further reducing the assembly and cleaning difficulty of the internal structure of the quick-release drainage structure.

[0049] Please refer to Figure 4 As shown, in this embodiment, an inner sealing ring 12 is provided at the upper part of the drainage channel 15, and an external water outlet pipe 41 is inserted into the drainage channel 15. The inner sealing ring 12 surrounds the periphery of the water outlet pipe 41. The inner sealing ring 12 seals the periphery of the water outlet pipe 41, effectively preventing backflow of water and affecting the normal operation of external equipment. Furthermore, an inner sealing groove 151 is provided at the upper part of the drainage channel 15, and the inner sealing ring 12 is embedded in the inner sealing groove 151. The inner sealing groove 151 limits the inner sealing ring 12, ensuring the stability of the inner sealing ring 12 during use. At the same time, the inner sealing ring 12 only needs to be limited by the groove body, and no additional connecting structure is required to connect the inner sealing ring 12. While ensuring the reliability of the installation of the inner sealing ring 12, it saves costs and realizes quick disassembly and assembly between the inner sealing ring 12 and the core 1, further reducing the cleaning difficulty of the quick-disassembly drainage structure.

[0050] Please refer to Figure 3As shown, in this embodiment, the inner sealing ring 12 includes an inner body 121. A first sealing arm 122 and a second sealing arm 123 are provided at both ends of the bottom of the inner body 121. The first sealing arm 122 and the second sealing arm 123 are arranged in a figure-eight shape. The bottom end of the first sealing arm 122 abuts against the top of the inner sealing groove 151, and the bottom end of the second sealing arm 123 abuts against the top of the side wall of the water outlet pipe 41. The first sealing arm 122 is inclined towards the groove structure of the inner sealing groove 151. In the assembled state, the first sealing arm 122 applies a force to the inner body 121 and the second sealing arm 123 towards the water outlet pipe 41, ensuring tight contact between the second sealing arm 123 and the water outlet pipe 41 and improving the internal sealing effect. The bottom end of the second sealing arm 123 is inclined towards the water outlet pipe 41, effectively increasing the contact area between the second sealing arm 123 and the water outlet pipe in the assembled state, further improving the internal sealing effect.

[0051] Please refer to Figures 1-3 As shown, the quick-release drainage structure further includes an outer sealing ring 11, which is interference-fitted between the outer side of the core 1 and the inner wall of the mounting channel 51. The outer sealing ring 11 provides a limiting force for the core 1 within the mounting channel 51, ensuring the stability of the core 1 during drainage. Simultaneously, the outer sealing ring 11 ensures airtightness below the core 1, improving the accuracy of drainage and water storage control. Specifically, an outer sealing groove 14 is formed on the outer side of the core 1, and the outer sealing ring 11 is embedded within it, with its end protruding from the opening of the outer sealing groove 14. The outer sealing groove 14 limits the outer sealing ring 11, eliminating the need for additional connecting structures. This saves costs while ensuring reliable installation of the outer sealing ring 11, and simultaneously enables quick disassembly and assembly between the outer sealing ring 11 and the core 1, further reducing the cleaning difficulty of the quick-release drainage structure. The end of the outer sealing ring 11 protrudes from the groove of the outer sealing groove 14. In the assembled state, the outer sealing ring 11 provides a limiting force to the core 1 to ensure the stability of the core 1, while ensuring the airtightness between the upper and lower parts of the core 1, thereby improving the pumping effect of the external drainage pump on the valve core 22.

[0052] Please refer to Figure 3 As shown, in this embodiment, a filter screen 13 is provided in the drainage channel 15. The filter screen 13 is located above the upper drain outlet 211. The filter screen 13 filters the discharged wastewater to prevent impurities from affecting the operation of the constant pressure drain valve 2 and the external drain pump.

[0053] This embodiment also discloses a washing device that uses the above-described quick-release drainage structure.

[0054] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A quick-release drainage structure, characterized in that, The method is applied to a double-layer washing tub, which includes an outer tub and an inner tub. The inner tub is embedded in the outer tub. A drive block is connected to the bottom of the outer tub. The drive block is connected to an external drive device. An installation channel is provided on the drive block. A water outlet pipe is provided at the bottom of the inner tub. The water outlet pipe passes through the outer tub and is connected to the installation channel. It includes the core; The core is embedded in the installation channel; the core has a drainage channel, which is connected to the water outlet pipe.

2. The quick-release drainage structure according to claim 1, characterized in that: A constant pressure drain valve is installed in the drainage channel; The constant pressure drain valve includes a valve body, a valve core, and a reset component. The valve body has an upper drain outlet at the top and a guide channel and a lower drain outlet at the bottom, with the upper drain outlet and the guide channel located in the same extending direction; The valve core includes a valve head and a valve stem, which are located inside the valve body. The top end of the valve stem is connected to the valve head, and the bottom end of the valve stem passes through the guide channel and extends outward. The reset member is arranged around the circumference of the valve stem, and the top and bottom ends of the reset member abut against the valve head and the valve body, respectively. The reset member pushes the valve head to abut against the upper drain port.

3. The quick-release drainage structure according to claim 2, characterized in that: The valve head has a lower contact surface at its top, which slopes outward from the inner side of the top surface of the valve head to the outer side of the lower part of the valve head. The upper contact surface is provided at the lower opening of the upper drain outlet. The upper contact surface is inclined and has the same inclination angle as the lower contact surface.

4. The quick-release drainage structure according to claim 3, characterized in that: The number of drain outlets is multiple, and the multiple drain outlets are arranged around the periphery of the guide channel, with the upper end of the drain outlets extending to the upper part of the valve body.

5. The quick-release drainage structure according to claim 1, characterized in that: The upper part of the drainage channel is provided with an inner sealing ring, the water outlet pipe extends into the drainage channel, and the inner sealing ring surrounds the periphery of the water outlet pipe.

6. The quick-release drainage structure according to claim 5, characterized in that: The upper part of the drainage channel is provided with an inner sealing groove, and the inner sealing ring is embedded in the inner sealing groove.

7. The quick-release drainage structure according to claim 6, characterized in that: The inner sealing ring includes an inner body, and a first sealing arm and a second sealing arm are provided at both ends of the bottom of the inner body. The first sealing arm and the second sealing arm are distributed in a figure-eight shape. The bottom end of the first sealing arm abuts against the top of the inner sealing groove, and the bottom end of the second sealing arm abuts against the top of the side wall of the water outlet pipe.

8. The quick-release drainage structure according to claim 1, characterized in that: It also includes an outer sealing ring, which is interference-fitted between the outer side of the core and the inner sidewall of the mounting channel.

9. The quick-release drainage structure according to claim 2, characterized in that: The lower part of the drainage channel is provided with a limiting protrusion ring, and the constant pressure drainage valve is embedded in the drainage channel. The bottom surface of the constant pressure drainage valve abuts against the top surface of the limiting protrusion ring.

10. A washing device, characterized in that, The quick-release drainage structure described in any one of claims 1-9 is applied.

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