Valve plate type blow-down valve assembly and pre-filter thereof
Through the mechanical switching of the valve-type drain valve assembly, the problems of expensive pre-filter materials, inability to drain at low water pressure, and large structural space occupation are solved, achieving effective drainage under any water pressure and compact product design.
Patent Information
- Application Number
- CN202422668799.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Existing pre-filters have problems with their drainage structure, such as expensive materials, inability to drain when water pressure is low, and large space requirements.
The valve plate type drain valve assembly is adopted, and the opening and closing of the drain channel is controlled by mechanical switching. It includes a valve plate assembly and a drain knob. Water circuit control is achieved by the misalignment or conduction of the upper and lower drain water passages of the valve plate assembly, which avoids drain failure due to low water pressure and makes the product more compact.
It achieves effective sewage discharge under any water pressure, and the product has a compact structure that is easy to install.
Smart Images
Figure CN223483470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purification equipment, and in particular to a valve plate type drain valve assembly and its pre-filter. Background Technology
[0002] Existing pre-filters mainly use two main discharge methods: ball valves and discharge shafts. The ball valve type changes the flow of water by rotating the valve core; the discharge shaft type controls the flow of water by rotating the discharge knob to raise and lower the discharge shaft.
[0003] However, existing technologies have the following drawbacks: First, the ball valve is made of copper, which is expensive; second, the backwashing structure of ball valves opens by pressure difference, and the drain structure cannot open when the water pressure is low; third, both the ball valve and the drain shaft are designed at the bottom of the filter bottle, resulting in a long structure at the bottom of the filter bottle, requiring more space during installation. Therefore, a drain structure is needed that can solve the above technical problems. Utility Model Content
[0004] The purpose of this utility model is to solve the above-mentioned technical problems and provide a valve plate type sewage valve assembly and its pre-filter. This utility model changes the spring pressure differential switching method of the filtration state and sewage discharge state in the prior art to a mechanical switching method, so that the present utility model will not fail to discharge sewage due to low pressure. The valve plate assembly is installed in the pre-filter, making the product more compact and easy to install.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a valve plate type sewage valve assembly, including a sewage discharge knob with a sewage discharge channel and a valve plate assembly located above the sewage discharge knob. The valve plate assembly has an upper sewage discharge hole and a lower sewage discharge hole. The sewage discharge knob can rotate to drive the valve plate assembly to misalign or connect the lower sewage discharge hole and the upper sewage discharge hole. When the lower sewage discharge hole is connected to the upper sewage discharge hole, the sewage discharge channel is open; when the lower sewage discharge hole is misaligned with the upper sewage discharge hole, the sewage discharge channel is closed, thereby forming a water circuit on / off control.
[0006] Preferably, the valve assembly includes an upper valve disc and a lower valve disc that is engaged with the drain knob. The upper valve disc has an upper drain water passage hole, and the lower valve disc has a lower drain water passage hole. The rotation of the drain knob housing drives the lower valve disc to rotate, causing the lower drain water passage hole to be misaligned or connected with the upper drain water passage hole.
[0007] Preferably, the lower valve disc has a lower groove, and the drain knob has a first protrusion. The first protrusion is inserted into the lower groove to engage the drain knob and the lower valve disc. By engaging the drain knob and the lower valve disc through the insertion of the first protrusion into the lower groove, rotating the drain knob causes the lower valve disc to rotate, which in turn rotates the lower drain hole, thereby creating a misalignment or connection between the lower drain hole and the upper drain hole.
[0008] Preferably, a coupling is also included. The upper valve disc has a first through hole at its center, and the lower valve disc has a second through hole at its center. The first and second through holes are aligned to form a central hole. The coupling passes through the central hole and is inserted into the drain knob. The lower valve disc rotates around the coupling with the central hole as its center. By using the coupling to pass through the central hole and allowing the lower valve disc to rotate around the central hole, the position of the lower valve disc can be effectively prevented from shifting during rotation, thus preventing the upper and lower drain holes from becoming blocked.
[0009] Preferably, the coupling includes a shaft portion passing through a central hole and a limiting portion located below the shaft portion. A first groove is provided on the drain knob, and the limiting portion is located in the first groove to engage the coupling with the drain knob. The limiting portion allows the drain knob to rotate, which in turn rotates the limiting portion, thereby rotating the coupling. This rotation of the coupling causes the frame in the pre-filter to rotate, thus switching the pre-filter between filtration and drain states.
[0010] Preferably, the limiting part includes a limiting ring and a horizontal stop arranged around the circumference of the shaft below the limiting ring. The horizontal stop is located in the first groove and engages the connecting shaft and the drain knob. By setting the horizontal stop and engaging it in the first groove, the structure is simple and stable.
[0011] Preferably, a drain hole is formed between two adjacent crossbars. With the drain hole, when the upper drain hole and the lower drain hole are connected, water flows out from the upper drain hole and the lower drain hole and then enters the drain knob for discharge.
[0012] Preferably, the device also includes a bowl-shaped clamping member that secures the valve plate assembly to the drain knob. The bowl-shaped clamping member is located on the outside of the valve plate assembly and has a first step. The drain knob has a second step, which is engaged within the first step. By using the bowl-shaped clamping member, the valve plate assembly is fixed within it, and the second step is fixed below the valve plate assembly, thereby securing the drain knob and preventing it from shifting vertically.
[0013] Preferably, a clamping cover is provided on the top of the cup-shaped clamping component. The clamping cover has a second protrusion, and the upper valve disc has an upper groove. The second protrusion is inserted into the upper groove to lock the clamping cover and the upper valve disc in place. The clamping cover has a third through hole and a fourth through hole. The connecting shaft passes through the third through hole, and the cup-shaped clamping component has a fifth through hole. A screw passes through the fourth through hole and the fifth through hole to connect the clamping cover and the cup-shaped clamping component. By setting the clamping cover, the upper valve disc is fixed to prevent rotation, and the cup-shaped clamping component is also fixed.
[0014] A pre-filter includes the valve plate type drain valve assembly.
[0015] The beneficial effects of this utility model are: this utility model changes the spring pressure differential switching method for the filtration state and the sewage discharge state in the prior art to a mechanical switching method, so that this utility model will not fail to discharge sewage due to low pressure. The valve plate assembly is installed in the pre-filter, making the product more compact and easier to install. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the valve plate type drain valve assembly in the on-state.
[0017] Figure 2 yes Figure 1 A cross-sectional view along the AA direction.
[0018] Figure 3 This is a schematic diagram of the valve plate type drain valve assembly in the closed state.
[0019] Figure 4 yes Figure 3 A cross-sectional view along the BB direction.
[0020] Figure 5 This is a schematic diagram of the valve plate assembly.
[0021] Figure 6 This is a schematic diagram of the lower valve disc and the drain knob.
[0022] Figure 7 This is a schematic diagram of the lower valve disc.
[0023] Figure 8 This is a schematic diagram of the drain knob.
[0024] Figure 9 This is a schematic diagram of the upper valve disc and the pressure cap.
[0025] Figure 10 This is a schematic diagram of the upper valve disc.
[0026] Figure 11 This is a schematic diagram of the compression cap structure.
[0027] Figure 12This is a schematic diagram of the coupling structure.
[0028] Figure 13 This is a structural schematic diagram of a bowl-shaped clamping component.
[0029] In the diagram: 1. Drain knob, 11. First protrusion, 12. First groove, 13. Second step, 2. Upper valve disc, 21. Upper drain water passage, 22. Upper groove, 23. First through hole, 3. Lower valve disc, 31. Lower drain water passage, 32. Lower groove, 33. Second through hole, 4. Connecting shaft, 41. Shaft, 42. Limiting part, 421. Limiting ring, 422. Horizontal bar, 423. Drain hole, 5. Center hole, 6. Bowl-shaped clamping part, 61. Fifth through hole, 62. First step, 7. Clamping cover, 71. Second protrusion, 72. Third through hole, 73. Fourth through hole. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0031] like Figure 1-13 As shown, this utility model discloses a valve plate type sewage valve assembly, including a sewage discharge knob 1 with a sewage discharge channel and a valve plate assembly located above the sewage discharge knob 1. The valve plate assembly is provided with an upper sewage discharge water passage 21 and a lower sewage discharge water passage 31. The sewage discharge knob 1 can rotate to drive the valve plate assembly to misalign or connect the lower sewage discharge water passage 31 with the upper sewage discharge water passage 21.
[0032] The valve assembly includes an upper valve disc 2 and a lower valve disc 3 that is engaged with the drain knob 1. The upper valve disc 2 is provided with an upper drain water passage hole 21, and the lower valve disc 3 is provided with a lower drain water passage hole 31. The rotation of the drain knob 1 causes the lower valve disc 3 to rotate, thereby misaligning or connecting the lower drain water passage hole 31 with the upper drain water passage hole 21.
[0033] The lower valve disc 3 is provided with a lower groove 32, and the drain knob 1 is provided with a first protrusion 11. The first protrusion 11 is inserted into the lower groove 32 to lock the drain knob 1 and the lower valve disc 3.
[0034] It also includes a connecting shaft 4. The upper valve disc 2 has a first through hole 23 at its center, and the lower valve disc 3 has a second through hole 33 at its center. The first through hole 23 and the second through hole 33 are aligned to form a central hole 5. The connecting shaft 4 passes through the central hole 5 and is inserted into the drain knob 1. The lower valve disc 3 rotates around the connecting shaft 4 with the central hole 5 as its center.
[0035] The coupling 4 includes a shaft portion 41 that passes through the central hole 5 and a limiting portion 42 located below the shaft portion 41. The drain knob 1 is provided with a first groove 12, and the limiting portion 42 is located on the first groove 12 to engage the coupling 4 with the drain knob 1.
[0036] The limiting part 42 includes a limiting ring 421 and a horizontal bar 422 arranged around the shaft part 41 below the limiting ring 421. The horizontal bar 422 is arranged in the first groove 12 to lock the connecting shaft 4 and the drain knob 1.
[0037] A drain hole 423 is formed between two adjacent crossbars 422.
[0038] It also includes a bowl-shaped clamping member 6 that clamps the valve plate assembly and the drain knob 1. The bowl-shaped clamping member 6 is located on the outside of the valve plate assembly. The bowl-shaped clamping member 6 has a first step 62, and the drain knob 1 has a second step 13. The second step 13 is clamped in the first step 62.
[0039] A pressure cover 7 is provided above the bowl-shaped clamping part 6. The pressure cover 7 has a second protrusion 71. The upper valve disc 2 has an upper groove 22. The second protrusion 71 is inserted into the upper groove 22 to lock the pressure cover 7 and the upper valve disc 2. The pressure cover 7 has a third through hole 72 and a fourth through hole 73. The connecting shaft 4 passes through the third through hole 72. The bowl-shaped clamping part 6 has a fifth through hole 61. The screw passes through the fourth through hole 73 and the fifth through hole 61 to connect the pressure cover 7 and the bowl-shaped clamping part 6.
[0040] A pre-filter includes the valve plate type drain valve assembly.
[0041] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0042] It should be noted that when a component is referred to as "fixed on" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.
[0043] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
Claims
1. A valve plate type drain valve assembly, characterized in that: It includes a drain knob (1) with a drain channel and a valve plate assembly located above the drain knob (1). The valve plate assembly has an upper drain water passage (21) and a lower drain water passage (31). The drain knob (1) can rotate to drive the valve plate assembly to misalign or connect the lower drain water passage (31) and the upper drain water passage (21).
2. The valve plate type drain valve assembly according to claim 1, characterized in that: The valve assembly includes an upper valve disc (2) and a lower valve disc (3) that is engaged with the drain knob (1). The upper valve disc (2) is provided with an upper drain water passage hole (21), and the lower valve disc (3) is provided with a lower drain water passage hole (31). The rotation of the drain knob (1) causes the lower valve disc (3) to rotate, thereby misaligning or connecting the lower drain water passage hole (31) with the upper drain water passage hole (21).
3. The valve plate type drain valve assembly according to claim 2, characterized in that: The lower valve disc (3) is provided with a lower groove (32), and the drain knob (1) is provided with a first protrusion (11). The first protrusion (11) is inserted into the lower groove (32) to lock the drain knob (1) and the lower valve disc (3).
4. The valve plate type drain valve assembly according to claim 2 or 3, characterized in that: It also includes a connecting shaft (4), the upper valve disc (2) has a first through hole (23) at its center, the lower valve disc (3) has a second through hole (33) at its center, the first through hole (23) and the second through hole (33) are aligned to form a central hole (5), the connecting shaft (4) passes through the central hole (5) and is inserted into the drain knob (1), and the lower valve disc (3) rotates around the connecting shaft (4) with the central hole (5) as the center.
5. The valve plate type drain valve assembly according to claim 4, characterized in that: The coupling (4) includes a shaft portion (41) passing through a central hole (5) and a limiting portion (42) located below the shaft portion (41). The drain knob (1) is provided with a first groove (12), and the limiting portion (42) is located on the first groove (12) to engage the coupling (4) with the drain knob (1).
6. The valve plate type drain valve assembly according to claim 5, characterized in that: The limiting part (42) includes a limiting ring (421) and a crossbar (422) arranged around the shaft part (41) below the limiting ring (421). The crossbar (422) is arranged in the first groove (12) to lock the connecting shaft (4) and the drain knob (1).
7. The valve plate type drain valve assembly according to claim 6, characterized in that: A drain hole (423) is formed between two adjacent crossbars (422).
8. The valve plate type drain valve assembly according to claim 1, 2, 3, 5, 6, or 7, characterized in that: It also includes a bowl-shaped clamping member (6) that clamps the valve plate assembly and the drain knob (1). The bowl-shaped clamping member (6) is located on the outside of the valve plate assembly. The bowl-shaped clamping member (6) has a first step (62) and the drain knob (1) has a second step (13). The second step (13) is clamped in the first step (62).
9. The valve plate type drain valve assembly according to claim 8, characterized in that: A pressure cover (7) is provided on the top of the cup-shaped clamping part (6). The pressure cover (7) has a second protrusion (71) and an upper groove (22) on the upper valve disc (2). The second protrusion (71) is inserted into the upper groove (22) to lock the pressure cover (7) and the upper valve disc (2). The pressure cover (7) has a third through hole (72) and a fourth through hole (73). The connecting shaft (4) passes through the third through hole (72). The cup-shaped clamping part (6) has a fifth through hole (61). The screw passes through the fourth through hole (73) and the fifth through hole (61) to connect the pressure cover (7) and the cup-shaped clamping part (6).
10. A pre-filter, characterized in that: Includes the valve plate type drain valve assembly as described in claim 1, 2, 3, 5, 6, 7, or 9.