Bottom valve for diaphragm pump

Abstract

The utility model provides a bottom valve for a diaphragm pump, which relates to the technical field of diaphragm pumps and comprises a valve body, a water outlet pipe is arranged on the outer wall of the valve body, an anti-dripping component is arranged in the water outlet pipe, a piston block is arranged in the valve body, and a floating ball is connected with the piston block through a first connecting rod. The valve body is installed at a water outlet of the diaphragm pump, the floating ball is arranged in a container needing water storage, the diaphragm pump is started, water flow is divided towards the two sides of the water outlet pipe through the through hole and enters the water storage container, and along with rising of the liquid level, the floating ball pushes the piston block to move in the direction close to the partition plate through the first connecting rod till the through hole is blocked, and then the water storage container is closed. When the diaphragm pump is closed, the anti-dripping assembly in the water outlet pipe can prevent water flow remaining in the pipe body from leaking and dripping at the moment, and therefore the diaphragm pump can better adapt to different use scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pumps, in particular to a bottom valve for a diaphragm pump. Background Art

[0002] The diaphragm pump uses a thin film to separate the pumped liquid from the piston and the pump cylinder, thereby protecting the piston and the pump cylinder.

[0003] In the existing patent: CN201821721014.2-A plate valve for a diaphragm pump and a diaphragm pump, including: a valve body, the valve body has a central through hole, the central through hole includes a main body hole section and a reduced diameter hole section located below the main body hole section; a valve flap, the valve flap is pivotally arranged on the valve body and adapted to the main body hole section, and the valve flap is used to open and close the central through hole.

[0004] In the above patent, after the central through hole is opened and closed by the valve flap, the residual liquid may leak and drip. Therefore, the utility model provides a bottom valve for a diaphragm pump to solve one or more of the above problems. Utility Model Content

[0005] The utility model provides a bottom valve for a diaphragm pump to solve the problems raised in the background technology, including a valve body, a water outlet pipe is arranged on the outer wall of the valve body, an anti-drip assembly is arranged in the water outlet pipe, a piston block is arranged in the valve body, and a float is connected to the piston block through a first connecting rod.

[0006] Preferably, the piston block is movably connected to the inner wall of the valve body, and two ends of the first connecting rod are fixedly connected to the piston block and the floating ball respectively.

[0007] Preferably, the water outlet pipes are in two groups symmetrically arranged on the outer wall of the valve body and connected to the valve body.

[0008] Preferably, the partition plate is fixedly connected to the inner wall of the valve body, and a through hole is opened in the center of the partition plate.

[0009] Preferably, the diameter of the through hole is smaller than the diameter of the piston block.

[0010] Preferably, the anti-drip assembly comprises: a tube body, a delivery tube body is fixedly provided in the tube body, the tube body is fixedly connected to the outer wall of the valve body, and the delivery tube body is communicated with the valve body.

[0011] Preferably, the movable sleeve is arranged in the tube body, and the movable sleeve is movably connected to the outer wall of the conveying tube body. The movable sleeve and the inner wall of the tube body are connected by a reset spring, and a guide groove is opened on the inner wall of the movable sleeve.

[0012] Preferably, the limiting ring is fixedly sleeved on the outer wall of the conveying pipe body located in the movable pipe sleeve, and the limiting ring is movably arranged in the guide groove.

[0013] Preferably, the end of the movable sleeve away from the valve body is a trapezoidal head structure, and two groups of first baffles are installed at the connection between the trapezoidal head and the movable sleeve through a torsion spring, a mounting groove is provided in the trapezoidal head of the movable sleeve, a limiting column is fixedly connected to the inner wall of the mounting groove, and the dredging tube body is arranged in the mounting groove, a guide ring sleeve is fixedly sleeved on the outer wall of the dredging tube body, a limiting groove is provided on the outer wall of the guide ring sleeve, the limiting column is movably connected to the limiting groove, one end of the reset spring is fixedly connected to the inner wall of the mounting groove, and the other end of the reset spring is fixedly connected to the guide ring sleeve.

[0014] Preferably, a water outlet is provided at one end of the tube body away from the valve body, and two sets of first baffles are installed at the water outlet of the water outlet through a torsion spring.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] This patent describes a bottom valve for a diaphragm pump, the benefits of which mainly include:

[0017] 1. Improved fluid control effect: Through the design and connection of components such as the valve body, piston block, and float, the flow of fluid is effectively controlled, which improves the operating efficiency of the pump and the stability of fluid delivery.

[0018] 2. Stable and reliable structure: Through the setting of components such as movable sleeve, guide groove, limit ring, etc., the structure of the bottom valve is stable and reliable when working, and it can operate stably for a long time without prone to failure.

[0019] 3. Prevent backflow and blockage: The design of partition plates, through holes, etc. can effectively prevent the backflow and blockage of the fluid, ensure the normal operation of the pump, and increase the life of the pump.

[0020] 4. Easy to maintain and install: The trapezoidal head, installation groove and other structures are designed to make the foot valve more convenient and quick to maintain and install, reducing manpower and time costs.

[0021] 5. Stable fluid output: The design of the water outlet pipe, water outlet nozzle, etc. makes the fluid output more stable, meets the design requirements of the pump, and improves the working efficiency and output quality of the pump.

[0022] Install the valve body to the water outlet of the diaphragm pump, and place the float in the container where water needs to be stored. Start the diaphragm pump, and the water will flow through the through hole to both sides of the water outlet pipe and enter the water storage container. As the liquid level rises, the float pushes the piston block to move toward the partition plate through the first connecting rod until the through hole is blocked. Then the diaphragm pump is turned off. At this time, the anti-drip component in the water outlet pipe can prevent the water remaining in the pipe body from leaking and dripping, so that the diaphragm pump can better adapt to different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0024] In the attached picture:

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the anti-drip component of the utility model.

[0028] In the figure: 1. valve body; 2. water outlet pipe; 3. piston block; 4. first connecting rod; 5. float; 6. partition plate; 7. through hole; 8. pipe body; 9. return spring 1; 10. movable pipe sleeve; 11. guide groove; 12. conveying pipe body; 13. limiting ring; 14. first baffle plate; 15. trapezoidal head; 16. return spring 2; 17. limiting column; 18. limiting groove; 19. guide ring sleeve; 20. dredging pipe body; 21. water outlet nozzle; 22. second baffle plate; 23. slot; 24. installation slot. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] Example 1

[0032] See also Figure 1-2The present invention provides a technical solution, including: a valve body 1, an outer wall of the valve body 1 is provided with a water outlet pipe 2, and an anti-drip component is provided in the water outlet pipe 2, a piston block 3 is arranged in the valve body 1, and a float 5 is connected to the piston block 3 through a first connecting rod 4.

[0033] Preferably, the piston block 3 is movably connected to the inner wall of the valve body 1 , and two ends of the first connecting rod 4 are fixedly connected to the piston block 3 and the floating ball 5 respectively.

[0034] Preferably, the water outlet pipes 2 are two groups symmetrically arranged on the outer wall of the valve body 1 and communicated with the inside of the valve body 1 .

[0035] Preferably, the partition plate 6 is fixedly connected to the inner wall of the valve body 1 , and a through hole 7 is provided at the center of the partition plate 6 .

[0036] Preferably, the diameter of the through hole 7 is smaller than the diameter of the piston block 3 .

[0037] The working principle and beneficial effects of the above technical solution are as follows: the valve body 1 is installed at the water outlet of the diaphragm pump, and the float 5 is placed in the container for the required water storage. The diaphragm pump is started, and the water flow is diverted to the two sides of the water outlet pipe 2 through the through hole 7 and enters the water storage container. As the liquid level rises, the float 5 pushes the piston block 3 to move toward the partition plate 6 through the first connecting rod 4 until the through hole 7 is blocked, and the diaphragm pump is closed. At this time, the anti-drip component in the water outlet pipe can prevent the water remaining in the pipe body from leaking and dripping, thereby enabling the diaphragm pump to better adapt to different usage scenarios.

[0038] Among them, the length of the first connecting rod 4 needs to be increased or decreased according to the usage scenario, so as to adapt to water storage containers of different volumes.

[0039] Example 2

[0040] Based on Example 1, please refer to Figure 2-3 The anti-drip assembly includes: a tube body 8, a delivery tube body 12 is fixedly arranged inside the tube body 8, and the tube body 8 is fixedly connected to the outer wall of the valve body 1, and the delivery tube body 12 is communicated with the inside of the valve body 1.

[0041] Preferably, the movable sleeve 10 is arranged in the tube body 8, and the movable sleeve 10 is movably connected to the outer wall of the conveying tube body 12. The movable sleeve 10 is connected to the inner wall of the tube body 8 through a return spring 9, and a guide groove 11 is opened on the inner wall of the movable sleeve 10.

[0042] Preferably, the limiting ring 13 is fixedly sleeved on the outer wall of the conveying pipe body 12 located in the movable pipe sleeve 10 , and the limiting ring 13 is movably disposed in the guide groove 11 .

[0043] Preferably, the end of the movable sleeve 10 away from the valve body 1 is a trapezoidal head 15 structure, and two groups of first baffles 14 are installed at the connection between the trapezoidal head 15 and the movable sleeve 10 through a torsion spring, a mounting groove 24 is opened in the trapezoidal head 15 of the movable sleeve 10, a limiting column 17 is fixedly connected to the inner wall of the mounting groove 24, and the dredging tube body 20 is arranged in the mounting groove 24, a guide ring sleeve 19 is fixedly sleeved on the outer wall of the dredging tube body 20, a limiting groove 18 is opened on the outer wall of the guide ring sleeve 19, the limiting column 17 is movably connected to the limiting groove 18, one end of the reset spring 16 is fixedly connected to the inner wall of the mounting groove 24, and the other end of the reset spring 16 is fixedly connected to the guide ring sleeve 19.

[0044] Preferably, a water outlet 21 is provided at one end of the tube body 8 away from the valve body 1 , and two sets of first baffles 14 are installed at the water outlet of the water outlet 21 through a torsion spring.

[0045] The working principle and beneficial effects of the above technical solution are as follows: when water is discharged, water flows into the movable sleeve 10 through the delivery pipe body 12. Since the first baffle 14 is closed in the initial stage, after the movable sleeve 10 is filled, the water flow will push the movable sleeve 10 to move along the delivery pipe body 12 toward the direction close to the water outlet 21. The reset spring 9 is stretched, and the movable sleeve 10 will push the dredging pipe body 20 into the water outlet 21, thereby realizing the dredging of the water outlet 21 by the dredging pipe body 20, and until the dredging pipe body 20 pushes the second baffle 22 open, the guide ring sleeve 19 enters the groove 23 and abuts against the groove 23, so that the dredging pipe body 20 will no longer continue to extend into the water outlet 21. At this time, the water flow continues to pressurize and continue to push the movable sleeve 10 to move in the direction close to the water outlet 21. Since the end of the pipe body 8 coincides with the trapezoidal head 15, When the movable sleeve 10 pushes the trapezoidal head 15 to fit with the end of the tube body 8, the trapezoidal head 15 will move along the limiting groove 18 through the limiting column 17 and the reset spring 2 16 will be compressed until the dredging tube body 20 pushes the first baffle 14 open. At this point, the first baffle 14 and the second baffle 22 are fully opened, and the water flow can be discharged smoothly. When the float 5 pushes the piston block 3 to block the through hole 7, the movable sleeve 10 is no longer subjected to the thrust of the water flow. While the reset spring 1 9 drives the movable sleeve 10 to reset, one end of the dredging tube body 20 withdraws from the water outlet 21, and the other end of the dredging tube body 20 retracts into the mounting groove 24. The first baffle 14 and the second baffle 22 are reset under the action of the torsion spring, thereby closing the trapezoidal head 15 and the water outlet 21, thereby preventing the water flow remaining in the tube body 8 from leaking and dripping. It is simple and practical.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A bottom valve for a diaphragm pump, characterized in that: include: A valve body (1) is provided with a water outlet pipe (2) on the outer wall of the valve body (1), and an anti-drip assembly is provided in the water outlet pipe (2); a piston block (3) is provided in the valve body (1), and a floating ball (5) is connected to the piston block (3) via a first connecting rod (4).

2. A bottom valve for a diaphragm pump as claimed in claim 1, characterized in that: The piston block (3) is movably connected to the inner wall of the valve body (1), and the two ends of the first connecting rod (4) are fixedly connected to the piston block (3) and the floating ball (5) respectively.

3. A bottom valve for a diaphragm pump as claimed in claim 1, characterized in that: The water outlet pipes (2) are two groups symmetrically arranged on the outer wall of the valve body (1) and are connected to the inside of the valve body (1).

4. A bottom valve for a diaphragm pump as claimed in claim 1, characterized in that: The partition plate (6) is fixedly connected to the inner wall of the valve body (1), and a through hole (7) is provided at the center of the partition plate (6).

5. A bottom valve for a diaphragm pump as claimed in claim 4, characterized in that: The diameter of the through hole (7) is smaller than the diameter of the piston block (3).

6. A bottom valve for a diaphragm pump as claimed in claim 4, characterized in that: The anti-drip assembly comprises: a tube body (8), a delivery tube body (12) is fixedly arranged inside the tube body (8), the tube body (8) is fixedly connected to the outer wall of the valve body (1), and the delivery tube body (12) is communicated with the inside of the valve body (1).

7. A bottom valve for a diaphragm pump as claimed in claim 6, characterized in that: The movable sleeve (10) is arranged in the tube body (8), and the movable sleeve (10) is movably sleeved on the outer wall of the conveying tube body (12). The movable sleeve (10) and the inner wall of the tube body (8) are connected via a return spring (9), and a guide groove (11) is provided on the inner wall of the movable sleeve (10).

8. A bottom valve for a diaphragm pump as claimed in claim 7, characterized in that: The limiting ring (13) is fixedly sleeved on the outer wall of the conveying pipe body (12) located inside the movable pipe sleeve (10), and the limiting ring (13) is movably arranged in the guide groove (11).

9. A bottom valve for a diaphragm pump as claimed in claim 7, characterized in that: The end of the movable pipe sleeve (10) away from the valve body (1) is a trapezoidal head (15) structure, and two groups of first baffles (14) are installed at the connection point between the trapezoidal head (15) and the movable pipe sleeve (10) through a torsion spring, a mounting groove (24) is provided in the trapezoidal head (15) of the movable pipe sleeve (10), a limiting column (17) is fixedly connected to the inner wall of the mounting groove (24), and the dredging pipe body (20) is arranged in the mounting groove (24), a guide ring sleeve (19) is fixedly sleeved with the outer wall of the dredging pipe body (20), a limiting groove (18) is provided on the outer wall of the guide ring sleeve (19), the limiting column (17) is movably connected to the limiting groove (18), one end of the second reset spring (16) is fixedly connected to the inner wall of the mounting groove (24), and the other end of the second reset spring (16) is fixedly connected to the guide ring sleeve (19).

10. A bottom valve for a diaphragm pump as claimed in claim 9, characterized in that: A water outlet (21) is provided at one end of the pipe body (8) away from the valve body (1), and two groups of first baffles (14) are installed at the water outlet of the water outlet (21) via torsion springs.

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