A screw pump flow splitting device

By installing an arc-shaped ring and connecting plate structure between the flanges of the screw pump, the problem of difficult separation of screws and nuts due to corrosion is solved, enabling convenient disassembly of the diversion pipe and discharge chamber, and improving the ease of equipment maintenance.

CN224550339UActive Publication Date: 2026-07-24SHANGHAI YIHE ENERGY SAVING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI YIHE ENERGY SAVING TECH CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The screws and nuts are difficult to separate due to corrosion, making it difficult to separate the distributor pipe from the discharge chamber, which affects the normal use of the screw pump.

Method used

An arc-shaped ring is installed on the side of the first flange away from the second flange. The bolt is cut off by the gap between the arc-shaped ring and the flange. The arc-shaped ring is moved as a whole by the connecting plate, releasing the axial stress of the bolt and realizing easy disassembly of the bolt and nut.

Benefits of technology

Without damaging other components, the diversion pipe and discharge chamber can be easily separated, avoiding the use of additional fasteners and solving the jamming problem caused by rust.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224550339U_ABST
    Figure CN224550339U_ABST
Patent Text Reader

Abstract

The utility model provides a screw rod pump shunt device, including suction chamber, the one end of suction chamber is installed with discharge chamber, the outer surface middle position of shunt pipe is installed with second flange, second flane is connected with first flange through the fastener of multiple sets of screw and nut, four even arrangement's double -end screws are equipped between first reinforcing pad and second reinforcing pad, the both ends of double -end screw respectively penetrate first reinforcing pad, second reinforcing pad and have threadedly connected round head nut, the arc ring is arranged in the side of first flange away from second flange, two arc rings form ring structure, there is gap between arc ring and first flange, the one end of screw penetrates second flange, first flange and arc ring in proper order and has threadedly connected nut, the arc ring is connected with second reinforcing pad through connecting piece, the utility model has the beneficial effect that: it is convenient to separate shunt pipe and discharge chamber without damaging other components.
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Description

Technical Field

[0001] This utility model is a flow divider for a screw pump, belonging to the field of screw pumps. Background Technology

[0002] Screw pump diversion is a key technology that achieves flow distribution, pressure regulation, and multi-condition adaptation by changing the fluid delivery path or optimizing the pump body structure. A diversion pipe with multiple branches is installed on the discharge chamber of the screw pump. Each branch connects to an independent delivery line, allowing for easy delivery of the corresponding medium to different application scenarios. The diversion pipe is connected to the discharge chamber via flanges and fasteners. Specifically, screws in the fasteners pass through two opposing flanges and are tightened with nuts to complete the assembly. However, during long-term use, the screws and nuts may corrode due to environmental factors, making them difficult to separate. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a screw pump diversion device to solve the problems mentioned in the background art. This utility model facilitates the separation of the diversion pipe and the discharge chamber without damaging other components.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a screw pump diversion device, comprising:

[0005] An intake chamber, one end of which is equipped with an exhaust chamber, and a first flange is installed at the end of the exhaust chamber away from the intake chamber;

[0006] A diversion pipe is located on the side of the discharge chamber away from the suction chamber. A second flange is installed at the middle of the outer surface of the diversion pipe. The second flange is connected to the first flange by fasteners formed by multiple sets of screws and nuts. Multiple branch pipes are evenly installed on the side of the outer surface of the diversion pipe away from the second flange.

[0007] The first reinforcing plate is fitted onto the inhalation chamber and fixedly connected to it.

[0008] The second reinforcing plate is fitted onto the end of the discharge chamber furthest from the intake chamber and is connected and fixed to the intake chamber.

[0009] A double-ended screw, wherein four evenly arranged double-ended screws are provided between the first reinforcing plate and the second reinforcing plate, and the two ends of the double-ended screws pass through the first reinforcing plate and the second reinforcing plate respectively and are threaded with round-headed nuts;

[0010] An arc-shaped ring is disposed on the side of the first flange away from the second flange. Two arc-shaped rings are disposed, forming a ring structure. There is a gap between the arc-shaped ring and the first flange. One end of the screw passes through the second flange, the first flange and the arc-shaped ring in sequence and is threaded with a nut. The arc-shaped ring is connected to the second reinforcing plate through a connector.

[0011] Furthermore, the connector includes ear plates, and the second reinforcing plate has two ear plates on one side near the arc-shaped ring. One end of the double-ended screw passes through the ear plates and is threaded with a round-headed nut. The ear plates are connected to the arc-shaped ring through two connecting plates.

[0012] Furthermore, the arc-shaped ring and the connecting plate are integrally formed, and the connecting plate and the ear plate are integrally formed.

[0013] Furthermore, a motor for driving the screw in the discharge chamber to rotate is installed at the end of the adsorption chamber away from the discharge chamber, and a liquid inlet is installed at the upper part of the outer surface of the adsorption chamber, with a connecting ring installed at the upper end of the liquid inlet.

[0014] Furthermore, a sealing gasket is provided between the first flange and the second flange, and one end of the screw passes through the sealing gasket.

[0015] Furthermore, both the first and second reinforcing plates are rectangular structures, and small holes are provided at the four corners of the first and second reinforcing plates, with the two ends of the double-ended screw passing through the corresponding small holes.

[0016] Furthermore, a docking ring is installed at the end of the branch pipe away from the diversion pipe, and a plurality of through holes for inserting bolts are equidistantly opened on one side of the docking ring.

[0017] Furthermore, a pipe joint is installed at the middle position of the outer surface of the diversion pipe, and the second flange is sleeved on the pipe joint and connected and fixed to the pipe joint.

[0018] The beneficial effects of this utility model are:

[0019] 1. Two arc-shaped rings forming a circular structure are installed on the side of the first flange away from the second flange. At this time, there is a gap between the arc-shaped rings and the first flange. When the screws and nuts cannot be separated normally due to corrosion, the space between the arc-shaped rings and the first flange is used to cut off the screws, thereby facilitating the complete disassembly of the first flange and the second flange, and facilitating the separation of the diversion pipe and the discharge chamber without damaging other components.

[0020] 2. Two arc-shaped rings are added between the first flange and the screw. The screw passes through the second flange and the first flange and is threaded to the arc-shaped ring. When the screw and nut are stuck due to rust, the round-head nuts at both ends of the double-ended screw can be loosened first. The arc-shaped ring is moved as a whole by the connecting plate. The axial stress of the screw is released by the gap between the arc-shaped ring and the first flange, so that the rusted screw and nut can be easily disassembled without additional pulling force. At the same time, no additional fasteners are needed to restrict the position of the arc-shaped ring. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a screw pump diversion device according to the present invention;

[0023] Figure 2 This is another perspective view of a screw pump diversion device according to the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a partial exploded view of a screw pump diversion device according to the present invention;

[0026] In the picture:

[0027] 1. Adsorption chamber; 11. First reinforcing plate; 12. Discharge chamber; 13. Double-ended screw; 14. Round head nut; 15. First flange; 16. Second reinforcing plate; 17. Connecting ring; 18. Liquid inlet;

[0028] 2. Electric motor;

[0029] 3. Diversion pipe; 31. Branch pipe; 32. Second flange;

[0030] 4. Screw; 41. Nut;

[0031] 5. Curved plate; 51. Ear plate; 52. Connecting plate;

[0032] 6. Sealing gasket. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0034] Please see Figures 1-4This utility model provides a technical solution: a screw pump diversion device, including a suction chamber 1, a discharge chamber 12 installed at one end of the suction chamber 1, a motor 2 for driving the screw in the discharge chamber 12 to rotate installed at the end of the suction chamber 1 away from the discharge chamber 12, a liquid inlet 18 installed at the upper part of the outer surface of the suction chamber 1, a connecting ring 17 installed at the upper end of the liquid inlet 18, a first reinforcing plate 11 sleeved on the suction chamber 1 and connected and fixed to the suction chamber 1, a second reinforcing plate 16 sleeved on the end of the discharge chamber 12 away from the suction chamber 1 and connected and fixed to the suction chamber 1, the first reinforcing plate 11 and the second reinforcing plate 16... Four evenly arranged double-ended screws 13 are provided between the two reinforcing plates 16. The two ends of the double-ended screws 13 pass through the first reinforcing plate 11 and the second reinforcing plate 16 respectively and are threaded with round-headed nuts 14. The first reinforcing plate 11 and the second reinforcing plate 16 are both rectangular structures. Small holes are opened at the four corners of the first reinforcing plate 11 and the four corners of the second reinforcing plate 16. The two ends of the double-ended screws 13 pass through the corresponding small holes. The structure formed by the first reinforcing plate 11, the second reinforcing plate 16 and the double-ended screws 13 strengthens the structure and improves its stability.

[0035] See Figure 1 , Figure 2 and Figure 4 A first flange 15 is installed at the end of the discharge chamber 12 away from the suction chamber 1. The diversion pipe 3 is located on the side of the discharge chamber 12 away from the suction chamber 1. A second flange 32 is installed at the middle of the outer surface of the diversion pipe 3. A pipe joint is installed at the middle of the outer surface of the diversion pipe 3. The second flange 32 is fitted onto the pipe joint and connected and fixed to the pipe joint. The second flange 32 is connected to the first flange 15 by fasteners formed by multiple sets of screws 4 and nuts 41. Multiple branch pipes 31 are evenly installed on the side of the outer surface of the diversion pipe 3 away from the second flange 32. A docking ring is installed at the end of the branch pipe 31 away from the diversion pipe 3. Multiple through holes for inserting bolts are opened at equal intervals on one side of the docking ring. A sealing gasket 6 is provided between the first flange 15 and the second flange 32. One end of the screw 4 passes through the sealing gasket 6. The branch pipes 31 evenly distributed on the outside of the diversion pipe 3 can be independently connected to the infusion pipeline to meet the needs of simultaneous infusion in multiple scenarios.

[0036] See Figures 1-4Two arc-shaped rings 5 ​​are provided on the side of the first flange 15 away from the second flange 32. The two arc-shaped rings 5 ​​form a ring structure. There is a gap between the arc-shaped rings 5 ​​and the first flange 15. One end of the screw 4 passes through the second flange 32, the first flange 15 and the arc-shaped rings 5 ​​in sequence and is threaded with a nut 41. Two arc-shaped rings 5 ​​forming a ring structure are provided on the side of the first flange 15 away from the second flange 32. At this time, there is a gap between the arc-shaped rings 5 ​​and the first flange 15. When the screw 4 and the nut 41 cannot be separated normally due to corrosion, the screw 4 is cut off by the space between the arc-shaped rings 5 ​​and the first flange 15, so as to facilitate the complete disassembly of the first flange 15 and the second flange 32. It is convenient to separate the diversion pipe 3 and the discharge chamber 12 without damaging other components.

[0037] See Figures 1-4 The second reinforcing plate 16 has two ear plates 51 on the side near the arc ring 5. One end of the double-ended screw 13 passes through the ear plate 51 and is threaded to a round-head nut 14. The ear plate 51 is connected to the arc ring 5 through two connecting plates 52. The arc ring 5 and the connecting plate 52 are integrally formed. The connecting plate 52 and the ear plate 51 are integrally formed. Two arc rings 5 ​​are added between the first flange 15 and the screw 4. The screw 4 passes through the second flange 32 and the first flange 15 and is threaded to the arc ring 5. When the screw 4 and the nut 41 are stuck due to rust, the round-head nuts 14 at both ends of the double-ended screw 13 can be loosened first. The arc ring 5 is moved as a whole through the connecting plate 52. The axial stress of the screw 4 is released by the gap between the arc ring 5 and the first flange 15, so that the rusted screw 4 and nut 41 can be easily disassembled without additional pulling force. At the same time, no additional fasteners are needed to limit the position of the arc ring 5.

[0038] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screw pump flow divider, characterized in that... include: An inhalation chamber (1) is provided with an exhaust chamber (12) at one end, and a first flange (15) is provided at the end of the exhaust chamber (12) away from the inhalation chamber (1). A diversion pipe (3) is located on the side of the discharge chamber (12) away from the suction chamber (1). A second flange (32) is installed at the middle of the outer surface of the diversion pipe (3). The second flange (32) is connected to the first flange (15) by fasteners formed by multiple sets of screws (4) and nuts (41). Multiple branch pipes (31) are evenly installed on the side of the outer surface of the diversion pipe (3) away from the second flange (32). The first reinforcing plate (11) is fitted onto the inhalation chamber (1) and connected and fixed to the inhalation chamber (1); The second reinforcing plate (16) is fitted onto the end of the discharge chamber (12) away from the inhalation chamber (1) and is connected and fixed to the inhalation chamber (1); Double-headed screws (13): Four evenly arranged double-headed screws (13) are provided between the first reinforcing plate (11) and the second reinforcing plate (16). The two ends of the double-headed screws (13) pass through the first reinforcing plate (11) and the second reinforcing plate (16) respectively and are threaded with round-headed nuts (14). An arc-shaped ring (5) is provided on the side of the first flange (15) away from the second flange (32). There are two arc-shaped rings (5), which form a ring structure. There is a gap between the arc-shaped ring (5) and the first flange (15). One end of the screw (4) passes through the second flange (32), the first flange (15) and the arc-shaped ring (5) in sequence and is threaded with a nut (41). The arc-shaped ring (5) is connected to the second reinforcing plate (16) through a connector.

2. The screw pump diversion device according to claim 1, characterized in that: The second reinforcing plate (16) has two ear plates (51) on one side near the arc ring (5). One end of the double-headed screw (13) passes through the ear plate (51) and is threaded with a round-headed nut (14). The ear plate (51) is connected to the arc ring (5) through two connecting plates (52).

3. The screw pump diversion device according to claim 2, characterized in that: The arc ring (5) and the connecting plate (52) are integrally formed, and the connecting plate (52) and the ear plate (51) are integrally formed.

4. The screw pump diversion device according to claim 1, characterized in that: The suction chamber (1) is equipped with a motor (2) for driving the screw in the discharge chamber (12) to rotate at the end away from the discharge chamber (12). An inlet (18) is installed at the upper part of the outer surface of the suction chamber (1), and a connecting ring (17) is installed at the upper end of the inlet (18).

5. A screw pump diversion device according to claim 1, characterized in that: A sealing gasket (6) is provided between the first flange (15) and the second flange (32), and one end of the screw (4) passes through the sealing gasket (6).

6. A screw pump diversion device according to claim 1, characterized in that: Both the first reinforcing plate (11) and the second reinforcing plate (16) are rectangular structures. Small holes are provided at the four corners of the first reinforcing plate (11) and the four corners of the second reinforcing plate (16). The two ends of the double-headed screw (13) pass through the corresponding small holes.

7. A screw pump diversion device according to claim 1, characterized in that: The branch pipe (31) is equipped with a docking ring at the end away from the diversion pipe (3), and the docking ring has multiple holes for inserting bolts at equal intervals on one side.

8. A screw pump diversion device according to claim 1, characterized in that: A pipe joint is installed at the middle of the outer surface of the diversion pipe (3), and the second flange (32) is sleeved on the pipe joint and connected and fixed to the pipe joint.