Leakage-free self-control self-priming pump
By using a separation membrane structure of a separation cylinder and a hydrophilic microporous filter membrane in a sealless self-controlled self-priming pump, the cavitation problem caused by high air content is solved, and the operation efficiency and installation efficiency of the pump are improved by simplifying the separation membrane replacement process.
Patent Information
- Application Number
- CN202421424812.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The existing sealless self-controlled self-priming pump is prone to high air content during the liquid extraction process, resulting in cavitation and reduced operating efficiency. At the same time, the separation membrane is cumbersome and has low efficiency.
A leak-free self-controlled self-priming pump is designed, using a separation cylinder and separation membrane structure, and the air in the liquid is separated by a separation membrane made of a hydrophilic microporous filter membrane, and the installation and replacement process of the separation membrane is simplified by the combination of pressing blocks, blocks, bayonets and handles.
It effectively solves the cavitation problem caused by high air content, improves the operating efficiency of the pump, and improves the installation efficiency and practicality of the device by simplifying the separation membrane replacement steps.
Smart Images

Figure CN222668494U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of self-priming pumps, in particular to a leakage-free self-controlled self-priming pump. Background Art
[0002] The self-priming pump is a self-priming centrifugal pump. It has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. The seal-free automatic self-priming pump usually adopts a pump-type serial multi-faceted centrifugal sealing device. The sealing device has no friction and wear during operation. The service life is more than 10 times longer than similar products. It is the most ideal equipment to replace various original long-axis submersible pumps, submersible pumps, submersible sewage pumps, etc.
[0003] At present, the liquid pumped by the sealless automatic self-priming pump often contains a large amount of air. After the liquid containing a large amount of air enters the pump, it will cause serious cavitation in the sealless automatic self-priming pump, which will not only increase the energy loss when the liquid flows through the pump body, but also affect the normal operation of the sealless automatic self-priming pump, reducing the operating efficiency of the sealless automatic self-priming pump; some self-priming pumps use a separation membrane to separate air and water. After long-term use, the separation membrane needs to be replaced and maintained, but the replacement requires disassembly of the installation cylinder, the replacement steps are cumbersome and inefficient.
[0004] Therefore, it is necessary to provide a leakage-free, self-controlled, self-priming pump to solve the above problems. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes a leakage-free self-controlled self-priming pump.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a leakage-free self-controlled self-priming pump, comprising a base plate and a separation cylinder, the inner wall of the separation cylinder is fixedly provided with a mounting groove, the inner wall of the mounting groove is installed with a mounting piece for extrusion contact, the inner wall of the mounting piece is fixedly provided with a separation membrane, the side of the mounting piece is fixedly provided with a bayonet, the side of the mounting piece is fixedly provided with a handle, the side of the separation cylinder is fixedly provided with a shell, the inner wall of the shell is fixedly provided with a fixing block, the side of the fixing block is fixedly provided with a sliding sleeve, the inner wall of the sliding sleeve is slidably provided with a push rod, the side of the push rod is fixedly provided with a side plate, the inner wall of the shell is fixedly provided with a sliding sleeve, the inner wall of the sliding sleeve is slidably provided with a card block, and the side of the card block is adapted to the inner wall of the bayonet.
[0007] As a further description of the above technical solution:
[0008] A connecting piece is fixedly installed on the side of the sliding sleeve, a sliding sleeve is fixedly installed on the end face of the connecting piece, a spring 1 is fixedly installed on the end face of the clamping block, a groove is fixedly opened on the side of the clamping block, the side face of the groove is slidingly connected to the side face of the clamping block, a spring 2 is fixedly installed on the side face of the side plate, the other end face of the spring 2 is fixedly connected to the inner wall of the outer shell, and a pressing block is fixedly installed on the end face of the push rod.
[0009] As a further description of the above technical solution:
[0010] A fixing sleeve is fixedly mounted on the side of the separation cylinder, a servo motor is fixedly mounted on the inner wall of the fixing sleeve, a mounting ring is fixedly mounted on the side of the servo motor transmission rod, and a scraper is fixedly mounted on the side of the mounting ring.
[0011] As a further description of the above technical solution:
[0012] A mounting frame is fixedly mounted on the bottom end surface of the separation cylinder, and a filter plate is fixedly mounted on the inner wall of the mounting frame.
[0013] As a further description of the above technical solution:
[0014] A driving assembly is fixedly mounted on the top surface of the bottom plate, a pump body is fixedly mounted on the end surface of a transmission rod of the driving assembly via a connecting assembly, and the bottom end surface of the pump body is fixedly connected to the top surface of the bottom plate.
[0015] As a further description of the above technical solution:
[0016] The top surface of the pump body is penetrated by through holes, the inner wall of the through hole is fixedly installed with a water outlet, the side of the pump body is fastened with a transmission pipe through a flange, and the bottom side of the transmission pipe is fixedly connected to the inner wall of the through hole opened at the top of the separation cylinder.
[0017] As a further description of the above technical solution:
[0018] The side surface of the scraper is matched with the bottom end surface of the filter plate.
[0019] The utility model has the following beneficial effects:
[0020] 1. Compared with the prior art, the leak-free automatic self-priming pump can reduce the time required for installation and replacement of the separation membrane by installing the pressing block, the card block, the bayonet and the handle. It can solve the problem that after long-term use of the traditional self-priming pump, the separation membrane needs to be disassembled, the replacement steps are cumbersome and the efficiency is low, thereby improving the installation efficiency and practicality of the device.
[0021] 2. Compared with the prior art, the leak-free automatic self-priming pump installs a separation cylinder and a separation membrane. The liquid enters the separation cylinder through a transmission pipe. When the liquid containing air flows through the separation membrane, the separation membrane made of a hydrophilic microporous filter membrane only allows the liquid to flow through, while the air cannot pass through the separation membrane, thereby separating the air in the liquid. This solves the problem that the liquid drawn into the current self-priming pump often contains a large amount of air, causing serious cavitation in the seal-free automatic self-priming pump; and the filter plate can be cleaned by setting a scraper, further improving the life of the device and the pumping quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the overall structure of a leak-free, self-controlled, self-priming pump proposed by the utility model;
[0023] Figure 2 This is a bottom view of the overall structure of a leak-free, self-controlled, self-priming pump proposed by the utility model;
[0024] Figure 3 This is a schematic diagram of the separation cylinder structure of a leak-free, self-controlled, self-priming pump proposed by the utility model;
[0025] Figure 4 This is a schematic diagram of the separation membrane structure of a leak-free, self-controlled, self-priming pump proposed by the utility model;
[0026] Figure 5 The utility model provides a block structure schematic diagram of a leakage-free self-controlled self-priming pump.
[0027] Legend:
[0028] 1. Bottom plate; 2. Drive assembly; 3. Connecting assembly; 4. Pump body; 5. Water outlet; 6. Transmission pipe; 7. Separation cylinder; 8. Mounting frame; 9. Filter plate; 10. Mounting slot; 11. Mounting piece; 12. Separation membrane; 13. Bayonet; 14. Handle; 15. Housing; 16. Sliding sleeve; 17. Block; 18. Spring 1; 19. Connecting piece; 20. Sliding sleeve; 21. Fixed block; 22. Push rod; 23. Side plate; 24. Spring 2; 25. Pressing block; 26. Fixed sleeve; 27. Servo motor; 28. Mounting ring; 29. Scraper. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] Reference Figure 1-Figure 5 The utility model provides a non-leakage self-controlled self-priming pump, including a bottom plate 1, a separation cylinder 7, a mounting groove 10 is fixedly provided on the inner wall of the separation cylinder 7, a mounting piece 11 is installed on the inner wall of the mounting groove 10 in compression contact, a separation membrane 12 is fixedly installed on the inner wall of the mounting piece 11, a bayonet 13 is fixedly provided on the side of the mounting piece 11, a handle 14 is fixedly installed on the side of the mounting piece 11, a shell 15 is fixedly installed on the side of the separation cylinder 7, a fixing block 21 is fixedly installed on the inner wall of the shell 15, a sliding sleeve 20 is fixedly installed on the side of the fixing block 21, a push rod 22 is slidably installed on the inner wall of the sliding sleeve 20, and a push rod 22 is slidably installed on the inner wall of the push rod 22. A side plate 23 is fixedly installed on the side of the rod 22, a sliding sleeve 16 is fixedly installed on the inner wall of the outer shell 15, a clamping block 17 is slidably installed on the inner wall of the sliding sleeve 16, and the side of the clamping block 17 is adapted to the inner wall of the bayonet 13. By installing the pressing block 25, the clamping block 17, the bayonet 13, and the handle 14 and other components, the time required for installation and replacement of the separation membrane 12 can be reduced, and the problem that the separation membrane 12 of the traditional self-priming pump needs to be disassembled after long-term use, the replacement steps are cumbersome and the efficiency is low, thereby improving the installation efficiency and practicality of the device.
[0031] A connecting piece 19 is fixedly installed on the side of the sliding sleeve 16, a sliding sleeve 20 is fixedly installed on the end face of the connecting piece 19, a spring 18 is fixedly installed on the end face of the clamping block 17, a groove is fixedly opened on the side of the clamping block 17, the side face of the groove is slidingly connected to the side face of the clamping block 17, a spring 24 is fixedly installed on the side of the side plate 23, the other end face of the spring 24 is fixedly connected to the inner wall of the outer shell 15, and a pressing block 25 is fixedly installed on the end face of the push rod 22.
[0032] A fixing sleeve 26 is fixedly installed on the side of the separation cylinder 7, a servo motor 27 is fixedly installed on the inner wall of the fixing sleeve 26, a mounting ring 28 is fixedly installed on the side of the driving rod of the servo motor 27, and a scraper 29 is fixedly installed on the side of the mounting ring 28. By installing the separation cylinder 7 and the separation membrane 12, the liquid enters the separation cylinder 7 through the transmission pipe 6. When the liquid containing air flows through the separation membrane 12, the separation membrane 12 made of a hydrophilic microporous filter membrane only allows the liquid to flow through, while the air cannot pass through the separation membrane 12, thereby separating the air in the liquid, solving the problem that the liquid pumped into the current self-priming pump often contains a large amount of air, causing serious cavitation in the sealless automatic self-priming pump; and the filter plate 9 can be cleaned by the setting of the scraper 29, further improving the life and pumping quality of the device.
[0033] A mounting frame 8 is fixedly mounted on the bottom end surface of the separation cylinder 7 , and a filter plate 9 is fixedly mounted on the inner wall of the mounting frame 8 .
[0034] A driving assembly 2 is fixedly mounted on the top surface of the bottom plate 1 , a pump body 4 is fixedly mounted on the end surface of a transmission rod of the driving assembly 2 via a connecting assembly 3 , and a bottom end surface of the pump body 4 is fixedly connected to the top surface of the bottom plate 1 .
[0035] A through hole is formed on the top surface of the pump body 4, and a water outlet 5 is fixedly installed on the inner wall of the through hole. A transmission pipe 6 is fastened to the side of the pump body 4 through a flange, and the bottom side of the transmission pipe 6 is fixedly connected to the inner wall of the through hole formed on the top of the separation cylinder 7.
[0036] The side surface of the scraper plate 29 is matched with the bottom end surface of the filter plate 9.
[0037] Working principle: When in use, the device is installed next to the pumping platform, and the separation cylinder 7 is immersed in water, the drive assembly 2 is turned on, and the pump body 4 is driven by the connecting piece 19 to perform the pumping operation;
[0038] At this time, water flows through the filter plate 9 to filter out impurities in the water, and enters the separation cylinder 7, and then separates the air through the separation membrane 12, allowing only water to flow through. When there are many impurities attached to the surface of the filter plate 9, the servo motor 27 is turned on to drive the mounting ring 28 and the scraper 29 to rotate and scrape off the impurities;
[0039] When the separation membrane 12 needs to be replaced after being used for a long time, the pressing block 25 is pushed to drive the push rod 22 to move and push the block 17 to move upward. At this time, the block 17 is disengaged from the bayonet 13. The handle 14 is held tightly and pulled outward to remove the separation membrane 12 from the separation cylinder 7. Then the new separation membrane 12 is aligned with the mounting groove 10 and pushed. The side of the mounting piece 11 pushes the block 17 upward. When it moves to the bayonet 13 and contacts the block 17, the spring 18 pushes the block 17 to move downward and pushes the block 17 into the bayonet 13 to fix the mounting piece 11 and the separation membrane 12.
[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A leak-free, self-controlled, self-priming pump, comprising a base plate (1) and a separation cylinder (7), characterized in that: The inner wall of the separation cylinder (7) is fixedly provided with a mounting groove (10), the inner wall of the mounting groove (10) is pressed and contacted with a mounting piece (11), the inner wall of the mounting piece (11) is fixedly provided with a separation membrane (12), the side of the mounting piece (11) is fixedly provided with a bayonet (13), the side of the mounting piece (11) is fixedly provided with a handle (14), the side of the separation cylinder (7) is fixedly provided with a shell (15), the inner wall of the shell (15) is fixedly provided with a fixing block (21), the side of the fixing block (21) is fixedly provided with a sliding sleeve (20), the inner wall of the sliding sleeve (20) is slidably provided with a push rod (22), the side of the push rod (22) is fixedly provided with a side plate (23), the inner wall of the shell (15) is fixedly provided with a sliding sleeve (16), the inner wall of the sliding sleeve (16) is slidably provided with a clamping block (17), the side of the clamping block (17) is adapted to the inner wall of the bayonet (13).
2. A leak-free, self-controlled, self-priming pump according to claim 1, characterized in that: A connecting piece (19) is fixedly mounted on the side of the sliding sleeve (16), a sliding sleeve (20) is fixedly mounted on the end surface of the connecting piece (19), a spring 1 (18) is fixedly mounted on the end surface of the clamping block (17), a groove is fixedly opened on the side of the clamping block (17), the side surface of the groove is slidably connected to the side surface of the clamping block (17), a spring 2 (24) is fixedly mounted on the side of the side plate (23), the other end surface of the spring 2 (24) is fixedly connected to the inner wall of the housing (15), and a pressing block (25) is fixedly mounted on the end surface of the push rod (22).
3. A leak-free, self-controlled, self-priming pump according to claim 1, characterized in that: A fixing sleeve (26) is fixedly mounted on the side of the separation cylinder (7), a servo motor (27) is fixedly mounted on the inner wall of the fixing sleeve (26), a mounting ring (28) is fixedly mounted on the side of a transmission rod of the servo motor (27), and a scraper (29) is fixedly mounted on the side of the mounting ring (28).
4. A leak-free, self-controlled, self-priming pump according to claim 1, characterized in that: A mounting frame (8) is fixedly mounted on the bottom end surface of the separation cylinder (7), and a filter plate (9) is fixedly mounted on the inner wall of the mounting frame (8).
5. A leak-free, self-controlled, self-priming pump according to claim 1, characterized in that: A driving assembly (2) is fixedly mounted on the top surface of the bottom plate (1), a pump body (4) is fixedly mounted on the end surface of a transmission rod of the driving assembly (2) via a connecting assembly (3), and a bottom end surface of the pump body (4) is fixedly connected to the top surface of the bottom plate (1).
6. A leak-free, self-controlled, self-priming pump according to claim 5, characterized in that: The top surface of the pump body (4) is provided with through holes extending therethrough from top to bottom, and a water outlet (5) is fixedly mounted on the inner wall of the through hole. A transmission pipe (6) is fixedly mounted on the side of the pump body (4) via a flange, and the bottom side of the transmission pipe (6) is fixedly connected to the inner wall of the through hole formed at the top of the separation cylinder (7).
7. A leak-free, self-controlled, self-priming pump according to claim 3, characterized in that: The side surface of the scraper (29) is matched with the bottom end surface of the filter plate (9).