Novel pipeline pump
By installing a movable filter and venting device in the pipeline pump, the problems of filter clogging and cavitation are solved, the convenience of cleaning and operational stability are improved, the service life is extended, and energy consumption is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI YANGYU SPECIAL PUMP CO LTD
- Filing Date
- 2025-06-01
- Publication Date
- 2026-04-17
AI Technical Summary
After prolonged use, the filter screen of existing pipeline pumps is easily clogged by impurities, leading to reduced flow, increased energy consumption, and shortened service life. Furthermore, cavitation is prone to occur, affecting operational stability.
A novel pipeline pump was designed, which features a movable filter screen and an exhaust device at the inlet pipe. The filter screen can be moved up and down for easy cleaning, and the exhaust device can discharge gas from the pump, enhancing its sealing and stability.
It improves the ease of cleaning the filter screen, reduces impurity accumulation, reduces energy consumption, extends service life, reduces cavitation, and improves the pump's operating efficiency and stability.
Smart Images

Figure CN224134878U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline pump technology, specifically a new type of pipeline pump. Background Technology
[0002] In high-rise residential buildings, commercial buildings, office buildings and other buildings, pipeline pumps are used to lift and deliver water from municipal water supply or water storage tanks to each floor to meet the daily water needs of residents and users.
[0003] Pipeline pumps mainly rely on the axial thrust generated by the blades on the liquid when the impeller rotates, so that the liquid flows axially. When the impeller rotates, the blades push the liquid, so that the liquid gains energy in the direction of the pump shaft, thereby realizing the transportation of the liquid.
[0004] Currently, through long-term observation and use, it has been found that as the usage time increases, impurities will continuously be trapped on the filter screen. If the filter screen is not easy to clean, the impurities will accumulate and gradually clog the pores of the filter screen. This will increase the resistance of the liquid passing through the filter screen and reduce the flow rate into the pipeline pump. In order to maintain a certain output, the pump needs to overcome greater resistance to do work, thereby increasing energy consumption and reducing the pump's operating efficiency. Long-term operation under this high-load state may also cause the pump's performance to deteriorate and shorten its service life. Therefore, a new type of pipeline pump is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a new type of pipeline pump.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A novel pipeline pump of this utility model includes a fixed steel plate; a pump casing is fixedly connected to the end of the fixed steel plate; a drive motor is provided on the top of the pump casing; the pump casing and the drive motor are connected by a flange; an inlet pipe and an outlet pipe are fixedly connected to both sides of the end of the pump casing respectively; a sliding groove is opened in the middle of the inlet pipe; a positioning sleeve is fixedly connected to the middle of the inlet pipe; a connecting frame block is fixedly connected to the end of the positioning sleeve block; a controller is rotatably connected to the inner side wall of the connecting frame block; a threaded rod is slidably connected to the inner side wall of the connecting frame block; the controller and the threaded rod are slidably connected; a filter screen is fixedly connected to the lower end of the threaded rod.
[0007] Preferably, the pump housing is threaded to an exhaust shell at its end; the exhaust shell has an air outlet on its surface; a blocking post is slidably connected to the side wall of the air outlet; a sealing gasket is fixedly connected to the end of the blocking post; a pulling frame is slidably connected to the inner wall of the exhaust shell; the pulling frame and the blocking post are fixedly connected; an air guide plate is fixedly connected to the inner wall of the exhaust shell; and a sealing ring is fixedly connected to the middle of the exhaust shell.
[0008] Preferably, a fan-shaped block is fixedly connected to both sides of the end of the filter screen; multiple sets of first springs are fixedly connected to the inner sidewall of the fan-shaped block; a rubber block is fixedly connected to the end of the first spring; the fan-shaped block and the rubber block are fixedly connected.
[0009] Preferably, the inlet pipe and outlet pipe have positioning grooves arranged in a circumferential array at their ends; a second spring is fixedly connected to the side wall of the positioning groove; and a rubber washer is fixedly connected to the end of the second spring.
[0010] Preferably, the end of the connecting frame block has slots arranged in a circumferential array; the surface of the threaded rod is fixed with insert rods arranged in a circumferential array; the slots and insert rods are slidably connected.
[0011] Preferably, a damping pad is fixedly connected to the side wall of the slot; a plug rod is slidably connected to the inner side wall of the damping pad.
[0012] Preferably, a sealing rubber ring is fixed to the end of the pump casing.
[0013] The beneficial effects of this utility model are:
[0014] This utility model provides a novel pipeline pump. By setting up a controller and a filter screen, a filter screen is installed at the water inlet pipe. The filter screen can be moved up and down by a set moving device, which facilitates the external cleaning of the filter screen by the staff, improves the flexibility and convenience of cleaning, thereby reducing the accumulation of impurities on the filter screen and extending the service life of the pump.
[0015] This utility model provides a novel pipeline pump. By setting an air outlet and an air guide plate, an exhaust device is set between the pump and the water inlet pipe. When water flows into the pump, the gas inside the pump can be discharged by opening the exhaust device, thereby reducing the cavitation phenomenon caused by the presence of gas in the pump and reducing the instability of the device caused by cavitation. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0017] In the attached diagram:
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a perspective view of the sealing rubber ring in this utility model;
[0020] Figure 3 This is a perspective view of the sliding groove in this utility model;
[0021] Figure 4 This is a perspective view of the controller in this utility model;
[0022] Figure 5 This is a three-dimensional view of the air outlet in this utility model.
[0023] Legend:
[0024] 1. Fixed steel plate; 11. Pump casing; 12. Drive motor; 13. Inlet pipe; 14. Outlet pipe; 15. Sliding groove; 16. Positioning sleeve block; 17. Connecting frame block; 18. Controller; 19. Threaded rod; 101. Filter screen; 2. Exhaust shell; 21. Air outlet; 22. Blocking column; 23. Sealing gasket; 24. Pulling frame; 25. Air guide plate; 26. Sealing ring; 3. Sector block; 31. First spring; 32. Rubber block; 4. Positioning groove; 41. Second spring; 42. Rubber washer; 5. Slot; 51. Insert rod; 6. Damping pad; 7. Sealing rubber ring. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Specific implementation examples are given below.
[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4This utility model provides a novel pipeline pump, including a fixed steel plate 1; a pump casing 11 is fixedly connected to the end of the fixed steel plate 1; a drive motor 12 is provided on the top of the pump casing 11; the pump casing 11 and the drive motor 12 are connected by a flange; an inlet pipe 13 and an outlet pipe 14 are fixedly connected to both sides of the end of the pump casing 11 respectively; a sliding groove 15 is opened in the middle of the inlet pipe 13; a positioning sleeve 16 is fixedly connected to the middle of the inlet pipe 13; a connecting frame block 17 is fixedly connected to the end of the positioning sleeve block 16; a controller 18 is rotatably connected to the inner wall of the connecting frame block 17; a threaded rod 19 is slidably connected to the inner wall of the connecting frame block 17; the controller 18 and the threaded rod 19 are slidably connected; a filter screen 101 is fixedly connected to the lower end of the threaded rod 19; during operation, because the water carries a lot of impurities, the water flowing into the inlet pipe 13 will be filtered by the filter screen 101, and most of the impurities will be adsorbed by the filter screen 101. In the process of maintaining the pipeline pump after a period of operation, the operator rotates the controller 18, which in turn drives the threaded rod 19 to slide upwards. The threaded rod 19 pulls the filter screen 101 upwards, thus removing the filter screen 101 from inside the inlet pipe 13, allowing for external cleaning of the filter screen 101. After cleaning, the filter screen 101 is placed back inside the inlet pipe by reversing the controller 18, and the subsequent cleaning work continues. When the filter screen 101 is placed back inside the inlet pipe, the corresponding sealing device ensures the sealing of the sliding groove 15. This design, by setting a filter screen at the inlet pipe and using a movable device to allow the filter screen to move up and down, facilitates external cleaning of the filter screen by the operator, improves the flexibility and convenience of cleaning, reduces the accumulation of impurities on the filter screen, and extends the service life of the pump.
[0028] Furthermore, such as Figure 1 , Figure 5As shown, the pump casing 11 is threaded to an exhaust shell 2 at its end; an exhaust hole 21 is provided on the surface of the exhaust shell 2; a blocking column 22 is slidably connected to the side wall of the exhaust hole 21; a sealing gasket 23 is fixedly connected to the end of the blocking column 22; a pulling frame 24 is slidably connected to the inner side wall of the exhaust shell 2; the pulling frame 24 and the blocking column 22 are fixedly connected; a guide plate 25 is fixedly connected to the inner side wall of the exhaust shell 2; a sealing ring 26 is fixedly connected to the middle of the exhaust shell 2; during operation, water is introduced into the pipeline pump. As the water flows, when there is a certain liquid level difference in the pipeline pump system, static pressure is generated. Due to its own gravity, the liquid will form a certain pressure at the lower level. The operator pushes the pulling frame 24 to drive the blocking column 22 to slide out of the exhaust hole 21. The vent 21 connects the pump's internal air pressure environment to the outside. At this time, the gas inside the pump can be guided by the air guide plate 25 to the exhaust shell 2 and discharged through the vent 21, reducing cavitation inside the pump. After venting, the operator pulls back the pull frame 24 to slide the blocking column 22 into the vent 21 and seals the vent 21 with the sealing gasket 23. At the same time, a sealing ring 26 is provided at the connection between the exhaust shell 2 and the pump shell 11 to improve the sealing performance of the connection. This design, by setting an exhaust device between the pump and the water inlet pipe, can discharge the gas inside the pump when water flows into the pump by opening the exhaust device, thereby reducing cavitation inside the pump caused by gas and reducing the instability of the device caused by cavitation.
[0029] Furthermore, such as Figure 3 , Figure 4 As shown, fan-shaped blocks 3 are fixedly connected to both sides of the end of the filter screen 101; multiple sets of first springs 31 are fixedly connected to the inner sidewall of the fan-shaped blocks 3; rubber blocks 32 are fixedly connected to the ends of the first springs 31; the fan-shaped blocks 3 and the rubber blocks 32 are fixedly connected; during operation, when the filter screen 101 is removed for cleaning and reset, the fan-shaped blocks 3 move with the filter screen 101. When the filter screen 101 is reset, the fan-shaped blocks 3 can seal the sliding groove 15. At the same time, during this process, the rubber blocks 32 are subjected to the width of the sliding groove 15. The limiting effect of the degree will compress the first spring 31, thereby completing the sealing effect. At the same time, after being compressed, the first spring 31 pushes the rubber block 32 through its own reaction force, thereby compressing the rubber block 32 and expanding it, thus improving the sealing effect at the sliding groove 15. This design connects a sealing device to the filter screen 101. When the filter screen 101 is reset, the rubber is compressed to fill the gap between the filter screen 101 and the sliding groove 15, thereby improving the sealing effect when the filter screen 101 is reset.
[0030] Furthermore, such as Figure 2 , Figure 3As shown, the inlet pipe 13 and outlet pipe 14 are provided with positioning grooves 4 arranged in a circumferential array at their ends; a second spring 41 is fixedly connected to the side wall of the positioning groove 4; a rubber gasket 42 is fixedly connected to the end of the second spring 41; during operation, when the inlet pipe 13 and outlet pipe 14 are connected by flanges, the rubber gasket 42 is squeezed by the compression between the flanges, and at the same time, the rubber gasket 42 is squeezed on both sides by the reaction force of the second spring 41, thereby increasing the void area filled by the rubber gasket 42 when it is squeezed, and enhancing the sealing effect. This design enhances the sealing effect of the farad connection at the pump inlet and outlet, and improves the stability at the inlet and outlet.
[0031] Furthermore, such as Figure 4 As shown, the connecting frame block 17 has slots 5 arranged in a circular array at its end; the threaded rod 19 has insert rods 51 fixedly connected in a circular array on its surface; the slots 5 and insert rods 51 are slidably connected; during operation, when the filter screen 101 is reset, the insert rods 51 descend with the threaded rod 19 and slide into the slots 5, thereby limiting and fixing the threaded rod 19, reducing the instability of the filter screen 101 when water impacts it when the water inlet pipe 13 is flowing through it. This design reduces the force transmitted by the water impact on the filter screen 101 by limiting and fixing the threaded rod 19, thereby improving its stability.
[0032] Furthermore, such as Figure 4 As shown, a damping pad 6 is fixed to the side wall of the slot 5; a plug rod 51 is slidably connected to the inner side wall of the damping pad 6; during operation, when the plug rod 51 slides into the slot 5, the damping pad 6 enhances the friction on the plug rod 51, thereby improving its stability. This design enhances the stability of the plug rod 51 by increasing the friction.
[0033] Furthermore, such as Figure 2 As shown, a sealing rubber ring 7 is fixed to the end of the pump casing 11. During operation, when the pump casing 11 and the drive motor 12 are connected by a flange, the sealing effect between them is enhanced by the sealing rubber ring 7, thereby reducing the impact of water rising to the drive motor 12 when the air pressure is unstable. This design improves the protection of the drive motor by enhancing the sealing effect between the pump and the drive motor.
[0034] Working Principle: During operation, water carrying many impurities flows into the inlet pipe 13 and is filtered by the filter screen 101. The filter screen 101 adsorbs most of the impurities. During maintenance of the pipeline pump after a period of operation, the operator rotates the controller 18, which drives the threaded rod 19 to slide upward. The threaded rod 19 lifts the filter screen 101 upward, thus removing it from inside the inlet pipe 13 for external cleaning. After cleaning, the reverse controller 18 is used to place the filter screen 101 back inside the filter screen 101 for subsequent cleaning. During operation, the sealing of the sliding groove 15 is ensured by its corresponding sealing device. This design, by installing a filter screen at the water inlet pipe and using a movable device, allows the filter screen to move up and down, facilitating external cleaning by staff and improving the flexibility and convenience of cleaning. This reduces the accumulation of impurities on the filter screen and extends the pump's service life. During operation, water is introduced into the pipeline pump. As the water flows, a certain liquid level difference exists in the pump system, generating static pressure. Due to its own gravity, the liquid forms a certain pressure at the lower level. By pushing the pull frame 24, the operator moves the blocking column 22 out of the vent 21. At this time, the air pressure environment inside the pump can be exchanged with the outside through the vent 21. When connected, the gas inside the pump can be guided by the air guide plate 25 to the exhaust shell 2 and discharged through the air outlet 21, reducing cavitation in the pump. After venting, the operator pulls back the pull frame 24 to slide the blocking column 22 into the air outlet 21, and seals the air outlet 21 with the sealing gasket 23. At the same time, a sealing ring 26 is provided at the connection between the exhaust shell 2 and the pump shell 11 to improve the sealing performance of the connection. This design, by setting an exhaust device between the pump and the water inlet pipe, allows the gas inside the pump to be discharged when water flows into the pump, thereby reducing cavitation caused by gas in the pump and reducing the instability of the device caused by cavitation. During operation, when the filter is... When the filter screen 101 is removed, cleaned, and reset, the sector block 3 moves along with it. When the filter screen 101 is reset, the sector block 3 seals the sliding groove 15. Simultaneously, during this process, the rubber block 32, limited by the width of the sliding groove 15, compresses the connected first spring 31, thus achieving a sealing effect. At the same time, the first spring 31, after being compressed, pushes the rubber block 32 through its own reaction force, further compressing and expanding it, thereby enhancing the sealing effect at the sliding groove 15. This design connects a sealing device to the filter screen 101, and when the filter screen 101 is reset, the rubber is compressed to fill the gap between the filter screen 101 and the sliding groove 15.This improves the sealing effect when the filter screen 101 resets. During operation, when the inlet pipe 13 and outlet pipe 14 are connected by flanges, the rubber gasket 42 is compressed by the compression between the flanges. At the same time, the reaction force of the second spring 41 on the rubber gasket 42 compresses the rubber gasket 42 from both sides, thereby increasing the void area filled by the rubber gasket 42 when compressed, enhancing the sealing effect. This design enhances the sealing effect of the farad connection at the pump inlet and outlet, improving the stability at the inlet and outlet. During operation, when the filter screen 101 resets, the insertion rod 51 descends with the threaded rod 19 and slides into the slot 5, thereby limiting and fixing the threaded rod 19, reducing the water impact when water flows through the inlet pipe 13. To address the instability of the filter screen 101, this design uses a limiting and fixing mechanism on the threaded rod 19 to reduce the force transmitted when the filter screen 101 is subjected to water impact, thereby improving its stability. During operation, when the insertion rod 51 slides into the slot 5, the damping pad 6 enhances the friction on the insertion rod 51, further improving its stability. This design also enhances stability by increasing the friction on the insertion rod 51. During operation, when the pump housing 11 and the drive motor 12 are flanged together, the sealing rubber ring 7 enhances the sealing effect, thereby reducing the impact of water rising to the drive motor 12 when the air pressure is unstable. This design improves the sealing effect between the pump and the drive motor, enhancing the protection of the drive motor.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A new type of pipe pump comprising a fixed steel plate (1); characterized in that: A pump casing (11) is fixedly connected to the end of the fixed steel plate (1); a drive motor (12) is provided on the top of the pump casing (11); the pump casing (11) and the drive motor (12) are connected by a flange; an inlet pipe (13) and an outlet pipe (14) are fixedly connected to both sides of the end of the pump casing (11); a sliding groove (15) is provided in the middle of the inlet pipe (13); a positioning sleeve block (16) is fixedly connected to the middle of the inlet pipe (13); a connecting frame block (17) is fixedly connected to the end of the positioning sleeve block (16); a controller (18) is rotatably connected to the inner wall of the connecting frame block (17); a threaded rod (19) is slidably connected to the inner wall of the connecting frame block (17); the controller (18) and the threaded rod (19) are slidably connected; a filter screen (101) is fixedly connected to the lower end of the threaded rod (19).
2. A novel pipe pump as claimed in claim 1, characterized in that: The pump housing (11) is threaded to an exhaust housing (2) at one end; an exhaust hole (21) is provided on the surface of the exhaust housing (2); a blocking column (22) is slidably connected to the side wall of the exhaust hole (21); a sealing gasket (23) is fixedly connected to the end of the blocking column (22); a pulling frame (24) is slidably connected to the inner side wall of the exhaust housing (2); the pulling frame (24) and the blocking column (22) are fixedly connected; an air guide plate (25) is fixedly connected to the inner side wall of the exhaust housing (2); and a sealing ring (26) is fixedly connected to the middle of the exhaust housing (2).
3. A novel pipe pump as claimed in claim 1, wherein: The filter screen (101) has a fan-shaped block (3) fixedly connected to both sides of its end; the inner wall of the fan-shaped block (3) has multiple sets of first springs (31) fixedly connected; the end of the first spring (31) has a rubber block (32) fixedly connected; the fan-shaped block (3) and the rubber block (32) are fixedly connected.
4. A novel pipe pump as claimed in claim 1, wherein: The inlet pipe (13) and outlet pipe (14) are provided with positioning grooves (4) arranged in a circumferential array at their ends; a second spring (41) is fixed to the side wall of the positioning groove (4); a rubber washer (42) is fixed to the end of the second spring (41).
5. A novel pipe pump as claimed in claim 1, wherein: The end of the connecting frame block (17) is provided with slots (5) arranged in a circumferential array; the surface of the threaded rod (19) is fixed with a plug rod (51) arranged in a circumferential array; the slots (5) and the plug rod (51) are slidably connected.
6. A novel pipe pump as claimed in claim 5, characterized in that: A damping pad (6) is fixed to the side wall of the slot (5); a plug rod (51) is slidably connected to the inner side wall of the damping pad (6).
7. A novel pipe pump as claimed in claim 1, wherein: A sealing rubber ring (7) is fixed to the end of the pump casing (11).