Drip-proof water pump

Abstract

This utility model discloses an anti-drip water pump, including a pump body. From top to bottom, the pump body comprises a cover, a first valve plate, a second valve plate, and a cylinder. The cover, first valve plate, and second valve plate are connected to the cylinder by multiple screws. The first valve plate is connected to an input pipe and an output pipe. A sealing gasket abuts between the first and second valve plates. The first valve plate has an input cavity communicating with the input pipe and an output cavity communicating with the output pipe. The second valve plate has an input port communicating with the input cavity and an output port communicating with the output cavity. A one-way inlet valve is provided at the input port. The output cavity has a protruding inlet and a sealing component is provided at the output cavity to seal the inlet. When the pump body is not used for extended periods, the water inside the pump body is sealed by the one-way inlet valve and the sealing block, preventing the water from drying out and thus avoiding the rubber and plastic parts from sticking together and causing pump failure, thereby improving the service life of the pump body.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, specifically to an anti-drip water pump. Background Technology

[0002] Miniature water pumps are commonly used in household appliances such as water dispensers, tea maker, and baby bottle warmer to deliver water.

[0003] Currently, when a micro water pump stops working, if the inlet pipe is higher than the outlet, water will leak out of the outlet, causing a drip. If the micro water pump is not used for a long time, the water inside the pump will dry up, causing the rubber and plastic parts inside the cylinder to stick together, resulting in pump failure. Therefore, this utility model proposes an anti-drip water pump that can solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a drip-proof water pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drip-proof water pump, comprising a pump body, wherein the pump body comprises, from top to bottom, a cover, a first valve plate, a second valve plate and a cylinder, the cover, the first valve plate and the second valve plate being connected to the cylinder by multiple screws, and the first valve plate being connected to an input pipe and an output pipe;

[0006] A sealing gasket abuts between the first valve plate and the second valve plate. The first valve plate has an input cavity that connects to the input pipe and an output cavity that connects to the output pipe. The second valve plate has an input port that connects to the input cavity and an output port that connects to the output cavity. A one-way water inlet valve is provided at the input port. The output cavity has a protruding inlet.

[0007] A sealing component is provided at the output cavity, and the sealing component is used to seal the inlet.

[0008] Preferably, the sealing gasket has multiple inwardly recessed areas that isolate the multiple screws on the outside.

[0009] Preferably, the upper end of the first valve plate is provided with a first annular groove and a second annular groove, and a sealing ring is provided in both the first annular groove and the second annular groove.

[0010] Preferably, the lower end of the cover has multiple inserts, and the upper end of the first valve plate has a groove for the multiple inserts to be fitted one by one.

[0011] Preferably, both the input tube and the output tube have insertion protrusions on their outer sides, and the insertion protrusions have guide arc surfaces with gradually increasing outer diameters.

[0012] Preferably, the sealing assembly includes a movable block and a spring, the spring elastically abutting against the upper end of the movable block, and the lower end of the movable block having a sealing portion, the outer diameter of which is larger than the inner diameter of the inlet and smaller than the inner diameter of the output cavity.

[0013] Preferably, the inner wall of the output cavity has multiple flow channels.

[0014] Preferably, each of the screws is fitted with a washer.

[0015] Preferably, the output tube is eccentrically distributed with respect to the output cavity.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] When the main body of the water pump stops working, the movable block, under the elastic force of the spring, drives the sealing block to seal the inlet, so that water does not enter the output chamber and avoids leakage.

[0018] When the water pump body is not used for a long time, the water inside the water pump body is sealed by the one-way inlet valve and the sealing block, so the water inside the water pump body is not easy to dry out. This prevents the rubber and plastic parts from sticking together and causing the water pump to fail, thus improving the service life of the water pump body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the cover, first valve plate, second valve plate and cylinder body of this utility model;

[0021] Figure 3 This is a schematic diagram showing the positional relationship between the sealing gasket and the multiple screws of this utility model;

[0022] Figure 4 This is a schematic diagram of the first valve plate structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the second valve plate structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the sealing component structure of this utility model;

[0025] Figure 7 This is a schematic diagram showing the connection between the drive motor and the diaphragm of this utility model;

[0026] In the diagram: 10. Pump body; 11. Cover; 111. Inlet pipe; 112. Outlet pipe; 12. First valve plate; 121. Inlet chamber; 122. Outlet chamber; 123. Inlet; 124. First annular groove; 125. Second annular groove; 126. Flow channel; 127. Sealing ring; 13. Second valve plate; 131. Inlet port; 132. Outlet port; 133. One-way inlet valve; 14. Cylinder body; 141. Leather cup; 15. Sealing gasket; 16. Screw; 17. Sealing assembly; 171. Spring; 172. Moving block; 173. Sealing part. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7

[0029] Provide a drip-proof water pump:

[0030] The water pump body 10 has, from top to bottom, a cover 11, a first valve plate 12, a second valve plate 13, and a cylinder 14. A drive motor is installed at the lower end of the cylinder 14. A diaphragm cup 141 is located inside the cylinder 14. The drive motor drives the pendulum needle to swing and continuously stretch and compress the diaphragm cup 141 to provide power for the entry and exit of water.

[0031] The cover 11, the first valve plate 12, and the second valve plate 13 are connected to the cylinder body 14 by multiple screws 16. The first valve plate 12 is connected to the input pipe 111 and the output pipe 112.

[0032] A sealing gasket 15 is abutted between the first valve plate 12 and the second valve plate 13. The first valve plate 12 has an input cavity 121 that connects to the input pipe 111 and an output cavity 122 that connects to the output pipe 112. The sealing gasket 15 is abutted by the first valve plate 12 and the second valve plate 13, which effectively isolates the input cavity 121 and the output cavity 122 to prevent water leakage.

[0033] The second valve plate 13 has an input port 131 that connects to the input chamber 121 and an output port 132 that connects to the output chamber 122. A one-way inlet valve 133 is provided at the input port 131. The output chamber 122 has a protruding inlet 123. A sealing assembly 17 is provided at the output chamber 122. The sealing assembly 17 is used to seal the inlet 123. The sealing assembly 17 includes a movable block 172 and a spring 171. The spring 171 elastically abuts against the upper end of the movable block 172. The lower end of the movable block 172 has a sealing part 173. The outer diameter of the sealing part 173 is larger than the inner diameter of the inlet 123 and smaller than the inner diameter of the output chamber 122. When the drive motor stops working;

[0034] When the water pump body 10 is working, water enters the piston cup 141 from the inlet 131 through the inlet 121. The compression and deformation of the piston cup 141 pushes the movable block 172 upward, causing the sealing block to open the inlet 123. This allows water to enter the output chamber 122 through the outlet 132 and the inlet 123, and finally be discharged through the output pipe 112. When the water pump body 10 stops working, the piston cup 141 stops stretching and compressing. Under the elastic force of the spring 171, the movable block 172 drives the sealing block to seal the inlet 123, preventing water from entering the output chamber 122, thus avoiding leakage.

[0035] Furthermore, when the water pump body 10 is not used for a long time, the water inside the water pump body 10 is sealed by the one-way inlet valve 133 and the sealing block, so the water inside the water pump body 10 is not easy to dry out, thereby avoiding the rubber parts and plastic parts from sticking together and causing the water pump to fail, thus improving the service life of the water pump body 10.

[0036] The sealing gasket 15 has multiple inwardly recessed areas, which isolate multiple screws 16 on the outside respectively. The upper end of the first valve plate 12 is provided with a first annular groove 124 and a second annular groove 125. Both the first annular groove 124 and the second annular groove 125 are provided with sealing rings 127. The sealing rings 127 are pressed by the cover 11, further isolating the input cavity 121 and the output cavity 122, effectively improving the sealing performance.

[0037] The lower end of the cover 11 has multiple inserts, and the upper end of the first valve plate 12 has a groove for the multiple inserts to be fitted one by one. Each screw 16 is fitted with a washer. During assembly, the screws are guided by the insertion of the inserts into the grooves, making assembly convenient.

[0038] The inner wall of the output chamber 122 has multiple flow channels 126, which allow water to flow quickly to the input pipe 111 through the flow channels 126 after entering the output chamber 122, thereby increasing the water discharge speed.

[0039] The output pipe 112 and the input pipe 111 are located on the cover 11, and the output pipe 112 and the output cavity 122 are eccentrically distributed, thereby increasing the distance between the output pipe 112 and the input pipe 111 and avoiding them being too close to each other and affecting the connection of the water inlet pipe and the water outlet pipe.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drip-proof water pump, characterized in that, The pump body (10) includes a cover (11), a first valve plate (12), a second valve plate (13) and a cylinder (14) from top to bottom. The cover (11), the first valve plate (12) and the second valve plate (13) are connected to the cylinder (14) by multiple screws (16). The first valve plate (12) is connected to an input pipe (111) and an output pipe (112). A sealing gasket (15) abuts between the first valve plate (12) and the second valve plate (13). The first valve plate (12) has an input cavity (121) that connects to the input pipe (111) and an output cavity (122) that connects to the output pipe (112). The second valve plate (13) has an input port (131) that connects to the input cavity (121) and an output port (132) that connects to the output cavity (122). A one-way water inlet valve (133) is provided at the input port (131). The output cavity (122) has a protruding inlet (123). A blocking component (17) is provided at the output cavity (122), and the blocking component (17) is used to block the inlet (123). The upper end of the first valve plate (12) is provided with a first annular groove (124) and a second annular groove (125), and a sealing ring (127) is provided in both the first annular groove (124) and the second annular groove (125). The blocking assembly (17) includes a movable block (172) and a spring (171). The spring (171) elastically abuts against the upper end of the movable block (172). The lower end of the movable block (172) has a blocking part (173). The outer diameter of the blocking part (173) is larger than the inner diameter of the inlet (123) and smaller than the inner diameter of the output cavity (122). The inner wall of the output cavity (122) has multiple flow channels (126).

2. The anti-drip water pump according to claim 1, characterized in that, The sealing gasket (15) has multiple inwardly recessed areas that isolate the multiple screws (16) on the outside.

3. The anti-drip water pump according to claim 1, characterized in that, The lower end of the cover (11) has multiple inserts, and the upper end of the first valve plate (12) has a groove for the multiple inserts to be fitted one by one.

4. The anti-drip water pump according to claim 1, characterized in that, Each of the screws (16) is fitted with a washer.

5. A drip-proof water pump according to claim 1, characterized in that, The output tube (112) and the output cavity (122) are eccentrically distributed.

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