A water stop pump

Abstract

The utility model discloses a kind of water stop pumps, including diaphragm pump, water stop mechanism is connected on the diaphragm pump, water stop mechanism includes connecting seat, connecting seat and diaphragm pump between constitute by inlet water cavity, outlet water cavity, the booster chamber of diaphragm pump is connected inlet water cavity and outlet water cavity, connecting seat is equipped with the water inlet of being connected with inlet water cavity, the water outlet of being connected with outlet water cavity, water inlet and the water path of inlet water cavity communication constitute there is water seal mouth and the water stop component of the water path control of water seal mouth place is connected.The utility model does not need to set water cut-off valve additionally, reduce equipment quantity and pipeline quantity, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport equipment technology, specifically to a water-stopping pump. Background Technology

[0002] Household water purifier systems and water dispenser systems are typically equipped with water shut-off devices and water pumps to control the water flow. As one of many devices capable of both water shut-off and pumping, diaphragm pumps are widely used in these systems. Current diaphragm pumps usually have a booster chamber to draw in and pump water, thus achieving the pumping function. However, they currently only have a pumping function and lack a water shut-off function. Currently, water shut-off is achieved by installing a water shut-off valve on the water line, which increases the number of fluid transport devices and pipelines, thereby increasing costs. Utility Model Content

[0003] The purpose of this utility model is to provide a water-stop pump that eliminates the need for a separate water shut-off valve, thereby reducing the amount of equipment and piping and lowering costs.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0005] A water-stopping pump includes a diaphragm pump, on which a water-stopping mechanism is connected. The water-stopping mechanism includes a connecting seat, and the connecting seat and the diaphragm pump form an inlet chamber and an outlet chamber. The pressurization chamber of the diaphragm pump is connected to the inlet chamber and the outlet chamber. The connecting seat is provided with an inlet that communicates with the inlet chamber and an outlet that communicates with the outlet chamber. A water seal and a water-stopping component for controlling the flow of water at the water seal are formed on the water path connecting the inlet and the inlet chamber.

[0006] In this solution, a water-stopping mechanism is installed at the upper end of the existing diaphragm pump to replace the function of a water shut-off valve. The connecting seat of the water-stopping mechanism is adapted to the upper end of the diaphragm pump, forming an inlet chamber and an outlet chamber between them. The inlet is connected to the inlet chamber, and the outlet is connected to the outlet chamber. A water-sealing port and a water-stopping component controlling the flow of water at the water-sealing port are installed on the water path connecting the inlet and the inlet chamber. When the diaphragm pump is working, the water path at the water-sealing port is opened, and the source water enters from the inlet, passes through the water-stopping component, and enters the inlet chamber. It is then sucked into the pressurization chamber, compressed by the pressurization chamber, and pumped to the outlet chamber, finally being output from the outlet. When the diaphragm pump stops working, the water path at the water-sealing port is disconnected, cutting off the water path between the inlet and the inlet chamber, thus achieving water shut-off. Even when the liquid level is higher than the inlet, the source water will not enter the diaphragm pump. This eliminates the need to install a water shut-off valve on the water path, reducing the amount of equipment and piping required, thereby reducing manufacturing costs.

[0007] Optionally, the connecting seat is provided with a vacuum chamber and a water passage chamber connected to the water inlet. The vacuum chamber is connected to the water inlet chamber, and the water-stopping component is arranged on the water passage connecting the water passage chamber and the vacuum chamber.

[0008] Optionally, the water-stopping assembly includes a pressure-sensing diaphragm, a control rod, an elastomer, a sealing part, and a mounting base. The mounting base is adapted to and connected to the connecting base. A sleeve is provided on the side of the mounting base. The sealing part is slidably disposed in the sleeve. One end of the elastomer acts on the sealing part, and the other end acts on the mounting base. An atmospheric cavity is formed between the pressure-sensing diaphragm and the cover plate, and an atmospheric pore is provided on the cover plate. A water passage groove is provided on the side wall of the control rod. One end of the control rod is connected to a pressure plate, which is connected to the pressure-sensing diaphragm. The other end cooperates with the sealing part to seal the water outlet. Under the combined action of the pressure in the vacuum cavity, the air pressure in the atmospheric cavity, and the elastomer, the control rod constitutes a water-stopping assembly that controls the flow of water at the water outlet.

[0009] Optionally, the sealing part includes a sealing plug and a sliding seat. The sliding seat is adapted to the inner cavity of the sleeve. The sealing plug is disposed on the side of the sliding seat facing the control rod, and the elastic body is disposed on the side of the sliding seat facing the mounting base.

[0010] Optionally, the elastic body is a return spring, with one end of the return spring acting on the sliding seat and the other end acting on the inner wall of the mounting seat.

[0011] Optionally, the cross-section of the sliding seat is I-shaped.

[0012] Optionally, a first sealing ring is provided between the mounting base and the connecting base.

[0013] Optionally, the mounting base has a circumferential groove for mounting the first sealing ring.

[0014] Optionally, a second sealing ring and a sealing gasket are provided between the diaphragm pump and the connecting seat.

[0015] Optionally, the second sealing ring is located at the upper end of the water outlet chamber, and the sealing gasket is located below the water inlet chamber.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this utility model, based on the existing diaphragm pump, a water-stopping mechanism is set at the upper end of the diaphragm pump to replace the function of the water shut-off valve. When the diaphragm pump is working, the water passage at the sealing port is opened, and the source water enters from the inlet, passes through the water-stopping component, enters the inlet chamber, and is then sucked into the pressurization chamber. The source water is then compressed in the pressurization chamber and pumped to the outlet chamber, and finally output from the outlet. After the diaphragm pump stops working, the water passage at the sealing port is disconnected, cutting off the water passage between the inlet and the inlet chamber, thus achieving water shut-off. Even when the liquid level is higher than the inlet, the source water will not enter the diaphragm pump. This eliminates the need to install a water shut-off valve on the water passage, reducing the amount of equipment used and the amount of pipeline installation, thereby reducing manufacturing costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Reference numerals: 1-Sealing gasket, 2-Inlet chamber, 3-Connecting seat, 4-Cover plate, 5-Vacuum chamber, 6-Pressure-sensing diaphragm, 7-Pressure plate, 8-Control rod, 9-Water passage groove, 10-Atmospheric vent, 11-Sealing port, 12-Sealing plug, 13-Sliding seat, 14-Reset spring, 15-Atmospheric chamber, 16-Sleeve, 17-Inlet, 18-Water passage chamber, 19-First sealing ring, 20-Inner cavity, 21-Mounting seat, 22-Outlet, 23-Second sealing ring, 24-Outlet chamber, 25-Pressure boosting chamber, 26-Diaphragm pump. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0023] A water-stopping pump includes a diaphragm pump 26, on which a water-stopping mechanism is connected. The water-stopping mechanism includes a connecting seat 3, and the connecting seat 3 and the diaphragm pump 26 form an inlet chamber 2 and an outlet chamber 24. The pressurization chamber 25 of the diaphragm pump 26 connects the inlet chamber 2 and the outlet chamber 24. The connecting seat 3 is provided with an inlet 17 connected to the inlet chamber 2 and an outlet 22 connected to the outlet chamber 24. A water seal 11 and a water-stopping component for controlling the opening and closing of the water passage at the water seal 11 are formed on the water passage connecting the inlet 17 and the inlet chamber 2.

[0024] In this embodiment, as Figure 1As shown, based on the existing diaphragm pump 26, a water-stopping mechanism is installed at the upper end of the diaphragm pump 26 to replace the function of the water shut-off valve. The connecting seat 3 of the water-stopping mechanism is adapted to connect with the upper end of the diaphragm pump 26, forming an inlet chamber 2 and an outlet chamber 24 between the two. The inlet 17 is connected to the inlet chamber 2, and the outlet 22 is connected to the outlet chamber 24. A sealing port 11 and a water-stopping component for controlling the flow of water at the sealing port 11 are provided on the water path connecting the inlet 17 and the inlet chamber 2. The structure and working principle of the diaphragm pump 26 are existing technologies and will not be described in detail again.

[0025] When the diaphragm pump 26 is working, the water passage at the sealing port 11 is opened, and the source water enters through the inlet 17, passes through the water-stopping component, and enters the inlet chamber 2. It is then sucked into the pressurization chamber 25, where it is compressed and pumped to the outlet chamber 24. Finally, it is output through the outlet 22. When the diaphragm pump 26 stops working, the water passage at the sealing port 11 is disconnected, cutting off the water passage between the inlet 17 and the inlet chamber 2, thus achieving water stoppage. Even when the liquid level is higher than the inlet 17, the source water will not enter the diaphragm pump 26. This eliminates the need to install a water shut-off valve on the water passage, reducing the amount of equipment used and the amount of piping installed, thereby reducing manufacturing costs.

[0026] Furthermore, the connecting seat 3 is provided with a vacuum chamber 5 and a water passage chamber 18 connected to the water inlet 17. The vacuum chamber 5 is connected to the water inlet chamber 2, and the water-stopping component is set on the water passage connecting the water passage chamber 18 and the vacuum chamber 5.

[0027] Furthermore, the water-stopping assembly includes a pressure-sensing diaphragm 6, a control rod 8, an elastomer, a sealing part, and a mounting base 21. The mounting base 21 is adapted to and connected to the connecting base 3. A sleeve 16 is provided on the side of the mounting base 21. The sealing part is slidably disposed in the sleeve 16. One end of the elastomer acts on the sealing part, and the other end acts on the mounting base 21. An atmospheric cavity 15 is formed between the pressure-sensing diaphragm 6 and the cover plate 4, and an atmospheric hole 10 is provided on the cover plate 4. A water passage groove 9 is provided on the side wall of the control rod 8. One end of the control rod 8 is connected to a pressure plate 7, which is connected to the pressure-sensing diaphragm 6. The other end cooperates with the sealing part to seal the water outlet 11. Under the combined action of the pressure in the vacuum cavity 5, the air pressure in the atmospheric cavity 15, and the elastomer, the control rod 8 constitutes a water-stopping assembly that controls the flow of water at the water outlet 11.

[0028] Specifically, when the diaphragm pump 26 is not working, the sum of the pressure in the vacuum chamber 5 and the elastic force of the elastic body on the sealing part is greater than the force of the air pressure in the atmospheric chamber 15 on the sealing part. Under the combined action of the above forces, the sealing part seals the water inlet 11. When the diaphragm pump 26 is working, the water or air in the vacuum chamber 5 is sucked away, forming a certain degree of vacuum. At this time, the sum of the pressure in the vacuum chamber 5 and the elastic force of the elastic body on the sealing part is less than the force of the air pressure in the second atmospheric chamber 15 on the sealing part. The control rod 8 presses against the sealing part and moves to the right under the combined action of the above forces. The side wall of the control rod 8 is provided with a water passage groove 9, which means that the right end of the control rod 8 does not have a water passage groove 9. The side wall on the left side of the right end is provided with a water passage groove 9. When the part of the right end of the control rod 8 without a water passage groove 9 moves completely to the right beyond the water passage chamber 18 and continues to move to the right, the water passage chamber 18 is connected to the vacuum chamber 5 through the water passage groove 9. When the water channel 9 of the control lever 8 has just moved to the right into the water passage chamber 18, the flow channel connecting the water passage chamber 18 to the vacuum chamber 5 through the water channel 9 is relatively small, resulting in a smaller flow rate from the diaphragm pump 26. If the control lever 8 continues to move to the right, the distance the portion of the control lever 8 with the water channel 9 moves to the right into the water passage chamber 18 becomes longer, increasing the flow area connecting the water passage chamber 18 to the vacuum chamber 5 and thus increasing the flow rate from the diaphragm pump 26. Therefore, by adjusting the operating voltage (power) of the diaphragm pump 26, the vacuum level in the vacuum chamber 5 can be adjusted, thereby adjusting the rightward movement distance of the control lever 8, which functions as both regulating the output flow rate of the diaphragm pump 26 and providing a water cut-off function.

[0029] Furthermore, the sealing part includes a sealing plug 12 and a sliding seat 13. The sliding seat 13 is adapted to the inner cavity 20 of the sleeve 16. The sealing plug 12 is disposed on the side of the sliding seat 13 facing the control rod 8, and the elastic body is disposed on the side of the sliding seat 13 facing the mounting base 21.

[0030] Specifically, the sealing plug 12 is a rubber plug, and the sliding seat 13 can move along the axis of the sleeve 16 under the action of the elastic body, thereby driving the sealing plug 12 to achieve sealing and conduction of the water passage at the sealing port 11.

[0031] Furthermore, the elastic body is a return spring 14, with one end of the return spring 14 acting on the sliding seat 13 and the other end acting on the inner wall of the mounting seat 21.

[0032] Furthermore, the cross-section of the sliding seat 13 is I-shaped.

[0033] Specifically, the sliding seat 13 has an I-shaped cross section, and the grooves on both sides of the I-shape are used to install the sealing plug 12 and the return spring 14.

[0034] Furthermore, a first sealing ring 19 is provided between the mounting base 21 and the connecting base 3. Specifically, the first sealing ring 19 seals the installation gap between the mounting base 21 and the connecting base 3 to prevent water leakage.

[0035] Furthermore, the mounting base 21 has a groove circumferentially provided for mounting the first sealing ring 19.

[0036] Furthermore, a second sealing ring 23 and a sealing gasket 1 are provided between the diaphragm pump 26 and the connecting seat 3.

[0037] Furthermore, the second sealing ring 23 is located at the upper end of the water outlet cavity 24, and the sealing gasket 1 is located below the water inlet cavity 2.

[0038] Specifically, the second sealing ring 23 is used to seal the installation gap at the upper end of the water outlet cavity 24 to prevent water leakage, and the sealing gasket 1 is used to seal the installation gap at the lower end of the water inlet cavity 2 to prevent water leakage.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A water-stop pump, comprising a diaphragm pump (26), characterized in that, The diaphragm pump (26) is connected to a water-stopping mechanism, which includes a connecting seat (3). The connecting seat (3) and the diaphragm pump (26) form a water inlet chamber (2) and a water outlet chamber (24). The pressurization chamber (25) of the diaphragm pump (26) connects the water inlet chamber (2) and the water outlet chamber (24). The connecting seat (3) is provided with a water inlet (17) connected to the water inlet chamber (2) and a water outlet (22) connected to the water outlet chamber (24). A water seal (11) and a water-stopping component for controlling the opening and closing of the water path at the water seal (11) are formed on the water path connected to the water inlet (17) and the water inlet chamber (2).

2. A water-stopping pump according to claim 1, characterized in that, The connecting seat (3) is provided with a vacuum chamber (5) and a water passage chamber (18) connected to the water inlet (17). The vacuum chamber (5) is connected to the water inlet chamber (2), and the water stop component is set on the water passage connecting the water passage chamber (18) and the vacuum chamber (5).

3. A water-stopping pump according to claim 2, characterized in that, The water-stopping assembly includes a pressure-sensing diaphragm (6), a control rod (8), an elastomer, a sealing part, and a mounting base (21). The mounting base (21) is adapted to the connecting base (3). A sleeve (16) is provided on the side of the mounting base (21). The sealing part is slidably disposed in the sleeve (16). One end of the elastomer acts on the sealing part, and the other end acts on the mounting base (21). An atmospheric cavity (15) is formed between the pressure-sensing diaphragm (6) and the cover plate (4), and an atmospheric hole (10) is provided on the cover plate (4). A water passage groove (9) is provided on the side wall of the control rod (8). One end of the control rod (8) is connected to a pressure plate (7). The pressure plate (7) is connected to the pressure-sensing diaphragm (6), and the other end cooperates with the sealing part to seal the water outlet (11). Under the combined action of the pressure in the vacuum cavity (5), the air pressure in the atmospheric cavity (15), and the elastomer, the control rod (8) constitutes a water-stopping assembly that controls the flow of water at the water outlet (11).

4. A water-stopping pump according to claim 3, characterized in that, The sealing part includes a sealing plug (12) and a sliding seat (13). The sliding seat (13) is adapted to the inner cavity (20) of the sleeve (16). The sealing plug (12) is located on the side of the sliding seat (13) facing the control rod (8), and the elastic body is located on the side of the sliding seat (13) facing the mounting seat (21).

5. A water-stop pump according to claim 4, characterized in that, The elastic body is a return spring (14), one end of which acts on the sliding seat (13) and the other end acts on the inner wall of the mounting seat (21).

6. A water-stop pump according to claim 5, characterized in that, The cross-section of the sliding seat (13) is I-shaped.

7. A water-stopping pump according to claim 3, characterized in that, A first sealing ring (19) is provided between the mounting base (21) and the connecting base (3).

8. A water-stop pump according to claim 7, characterized in that, The mounting base (21) has a groove circumferentially provided for installing the first sealing ring (19).

9. A water-stopping pump according to claim 1, characterized in that, A second sealing ring (23) and a sealing gasket (1) are provided between the diaphragm pump (26) and the connecting seat (3).

10. A water-stopping pump according to claim 9, characterized in that, The second sealing ring (23) is located at the upper end of the water outlet cavity (24), and the sealing gasket (1) is located below the water inlet cavity (2).

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