Corrosion-resistant water pump

CN224835564UActive Publication Date: 2026-10-09NINGBO SANXIN PUMPS CO LTD
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Patent Information

Application Number
CN202522552313.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-10-09
Estimated Expiration
2035-12-01

AI Technical Summary

Technical Problem

[0003]现有水泵的管路连接方式主要采用螺纹连接或法兰连接,但这些传统连接方式存在明显的技术局限性,螺纹连接需要使用扳手等工具进行多圈旋转才能完成拧紧或松开,操作过程耗时费力且在狭小空间内施工困难,拆卸时往往需要加热或使用专用工具才能分离,法兰连接虽然承载能力较强但需要逐个拧紧多颗螺栓,安装拆卸工序繁琐且对螺栓的预紧力均匀性要求高,操作不当容易造成密封面受力不均导致泄漏

Benefits of technology

1、本装置通过快接机构和密封设计,能够实现水泵与外接管之间的快速连接与密封,确保水泵在使用过程中不发生泄漏,提高了使用效率,快接机制中的多组卡块和限位杆确保了连接牢固,并通过旋转转动套推动卡块卡合,保证连接稳定,操作简便。

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Abstract

The utility model discloses a kind of corrosion-resistant water pumps, including water pump body, the water pump body is equipped with pumping end, the water pump body top surface is equipped with output end, the pumping end and output end are evenly provided with quick-connecting mechanism, the quick-connecting mechanism includes connecting sleeve and external pipe, the connecting sleeve is fixed in output end and pumping end top end, the external pipe is inserted in connecting sleeve, sliding hole is opened in the outer wall of connecting sleeve, the sliding hole is provided with multiple groups and is slidably provided with clamping block, the outer wall of external pipe is opened with clamping groove, the clamping groove is provided with multiple groups and respectively with multiple clamping blocks Clamping, multiple clamping block outside movably provided with control sleeve, the outer wall of control sleeve is fixedly provided with limit rod, the limit rod is provided with multiple groups and respectively abuts on multiple clamping block outside, the outer wall of connecting sleeve rotatably provided with rotating sleeve, the outer wall of rotating sleeve is fixedly provided with push block, the device is connected between water pump and external pipe by quick-connecting mechanism and sealing design, and can realize quick connection and sealing.
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Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and more specifically, to a corrosion-resistant water pump. Background Technology

[0002] In practical applications such as chemical production, sewage treatment, seawater desalination, and agricultural irrigation, water pumps need to frequently replace connecting pipelines to adapt to different working conditions or for equipment maintenance. Especially in situations involving corrosive media, the sealing performance and ease of disassembly and assembly of pipeline connections directly affect the reliability and operational efficiency of the equipment.

[0003] The existing water pump pipeline connection methods mainly use threaded connections or flange connections. However, these traditional connection methods have obvious technical limitations. Threaded connections require the use of tools such as wrenches to rotate multiple times to tighten or loosen them. The operation process is time-consuming and laborious, and it is difficult to carry out the work in a confined space. Disassembly often requires heating or the use of special tools to separate them. Although flange connections have a strong load-bearing capacity, they require tightening multiple bolts one by one. The installation and disassembly process is cumbersome and requires a high degree of uniformity in the preload of the bolts. Improper operation can easily cause uneven stress on the sealing surface, leading to leakage. Utility Model Content

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a corrosion-resistant water pump to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant water pump, comprising a pump body, a pumping end on the pump body, an output end on the top surface of the pump body, and quick-connect mechanisms for both the pumping end and the output end. Each quick-connect mechanism includes a connecting sleeve and an outer connecting pipe. The connecting sleeve is fixed to the top of the output end and the pumping end, and the outer connecting pipe is inserted into the connecting sleeve. The outer wall of the connecting sleeve has sliding holes, and multiple sets of sliding holes are provided, each with a sliding locking block. The outer wall of the outer connecting pipe has locking grooves, and multiple sets of locking grooves are provided, each engaging with a locking block. A control sleeve is movably provided on the outer side of each locking block. A limiting rod is fixedly provided on the outer wall of the control sleeve, and multiple sets of limiting rods are provided, each abutting against the outer side of a locking block. A rotating sleeve is rotatably provided on the outer wall of the connecting sleeve, and a push block is fixedly provided on the outer wall of the rotating sleeve, and multiple sets of push blocks abut against the outer wall of a locking block.

[0006] The present invention is further provided with a sealing gasket abutting the inner side of the connecting sleeve, which ensures the sealing between the connecting sleeve and the outer pipe, effectively prevents leakage, and improves the sealing performance of the water pump.

[0007] The present invention is further configured such that the outer sides of the multiple sets of push blocks are all arc-shaped, which reduces the friction between the push blocks and the locking blocks, improves the smoothness of the connection process, and extends the service life.

[0008] The present invention is further configured such that each of the multiple sets of limiting rods has a variable diameter groove on its inner side, and the multiple sets of locking blocks slide in the multiple sets of variable diameter grooves respectively, which ensures the smooth movement of the locking blocks, avoids unstable connection caused by jamming, and improves the convenience of disassembly.

[0009] The present invention is further configured such that a positioning block is slidably provided on the outer wall of the rotating sleeve, and multiple sets of positioning blocks are provided, each with a return spring connected to its top end. The bottom ends of the multiple sets of return springs are fixedly connected to the outer wall of the rotating sleeve. A positioning groove is provided on the outer wall of the connecting sleeve, and multiple sets of positioning grooves are provided, each abutting against multiple sets of positioning blocks, thereby ensuring the accurate positioning of the positioning blocks and making the connection between the water pump and the external pipe more secure and stable.

[0010] The present invention is further configured such that a limiting sleeve is provided on the threaded connection of the outer wall of the connecting sleeve, and the limiting sleeve abuts against the top of multiple positioning blocks, thereby ensuring the stability and positioning accuracy of the positioning blocks and ensuring the reliability of the quick-connect mechanism.

[0011] The present invention is further configured such that a sliding rod is fixedly provided on the outer wall of the control sleeve, and multiple sets of sliding rods are provided; a sliding groove is provided on the outer wall of the rotating sleeve, and multiple sets of sliding grooves are provided and are slidably connected to multiple sets of sliding rods respectively, which improves the stability and coordination between the control sleeve and the rotating sleeve, making the operation more stable.

[0012] The present invention is further provided that a tension spring is provided between the bottom surface of the control sleeve and the rotating sleeve. The tension spring is provided in multiple sets and is respectively provided on the outside of multiple sets of slide rods. The design of the tension spring ensures the elasticity and smoothness during operation and avoids jamming or component damage caused by improper operation.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a corrosion-resistant water pump, which has the following beneficial effects: 1. This device, through its quick-connect mechanism and sealing design, enables rapid connection and sealing between the water pump and the external pipe, ensuring no leakage during pump operation and improving efficiency. The multiple sets of locking blocks and limit rods in the quick-connect mechanism ensure a firm connection, and the rotating sleeve pushes the locking blocks to engage, guaranteeing a stable connection and easy operation.

[0014] 2. Meanwhile, the design of the rotating sleeve and the control sleeve allows the outer tube to be easily inserted and removed. The control sleeve is precisely adjusted by a tension spring, avoiding excessive force or damage to the connecting parts during disassembly, thus improving the convenience and safety of disassembly. The sliding structure ensures the smooth movement of all components, thereby effectively reducing wear and extending service life.

[0015] 3. Finally, the sealing gasket ensures a tight seal during each connection, preventing the entry of external contaminants and improving the working stability of the water pump. While ensuring safety and reliability, this device can also be quickly installed and disassembled, greatly improving the convenience of use and meeting the maintenance needs during long-term operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a corrosion-resistant water pump according to the present invention; Figure 2 This is a structural diagram of the external connecting pipe in the disassembled state of this utility model; Figure 3 This is a cross-sectional view of the fixing mechanism in this utility model; Figure 4 This is a cross-sectional view of the rotating sleeve in this utility model; Figure 5 This is a schematic diagram of the control sleeve in this utility model.

[0017] In the diagram: 1. Pump body; 2. Pumping end; 3. Output end; 4. Connecting sleeve; 5. External pipe; 6. Sliding hole; 7. Locking block; 8. Locking groove; 9. Control sleeve; 10. Limiting rod; 11. Rotating sleeve; 12. Push block; 13. Sealing gasket; 14. Variable diameter groove; 15. Positioning block; 16. Return spring; 17. Positioning groove; 18. Limiting sleeve; 19. Sliding rod; 20. Sliding groove; 21. Tension spring. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figures 1-5 A corrosion-resistant water pump includes a pump body 1, a pumping end 2 on the pump body 1, and an output end 3 on the top surface of the pump body 1. Both the pumping end 2 and the output end 3 are provided with quick-connect mechanisms. The quick-connect mechanisms include a connecting sleeve 4 and an outer pipe 5. The connecting sleeve 4 is fixed to the top of the output end 3 and the pumping end 2. The outer pipe 5 is inserted into the connecting sleeve 4. The outer wall of the connecting sleeve 4 has a sliding hole 6. The sliding hole 6 is provided with multiple sets, each with a sliding locking block 7. The outer wall of the outer pipe 5 has a locking groove 8. The locking groove 8 is provided with multiple sets and engages with multiple sets of locking blocks 7. A control sleeve 9 is movably provided on the outer side of the multiple sets of locking blocks 7. A limit rod 10 is fixed on the outer wall of the control sleeve 9. The limit rod 10 is provided with multiple sets and abuts against the outer side of the multiple sets of locking blocks 7. A rotating sleeve 11 is rotatably provided on the outer wall of the connecting sleeve 4. A push block 12 is fixed on the outer wall of the rotating sleeve 11. The push block 12 is provided with multiple sets and abuts against the outer wall of the multiple sets of locking blocks 7.

[0022] A sealing gasket 13 is provided on the inner side of the connecting sleeve 4.

[0023] The outer sides of multiple push blocks 12 are all set to be arc-shaped. Multiple sets of limiting rods 10 have variable diameter grooves 14 on their inner sides, and multiple sets of locking blocks 7 slide in the multiple sets of variable diameter grooves 14 respectively.

[0024] The outer wall of the rotating sleeve 11 is provided with a positioning block 15. There are multiple sets of positioning blocks 15, and each of them is connected to a return spring 16 at its top. The bottom ends of the multiple sets of return springs 16 are fixedly connected to the outer wall of the rotating sleeve 11. The outer wall of the connecting sleeve 4 is provided with a positioning groove 17. There are multiple sets of positioning grooves 17, and each of them abuts against the multiple sets of positioning blocks 15.

[0025] The outer wall of the connecting sleeve 4 is threaded with a limiting sleeve 18, which abuts against the top of multiple positioning blocks 15.

[0026] The outer wall of the control sleeve 9 is fixedly provided with a slide rod 19, and multiple sets of slide rods 19 are provided. The outer wall of the rotating sleeve 11 is provided with a slide groove 20, and multiple sets of slide grooves 20 are provided and are slidably connected to multiple sets of slide rods 19 respectively.

[0027] A tension spring 21 is provided between the bottom surface of the control sleeve 9 and the rotating sleeve 11. Multiple sets of tension springs 21 are provided and are respectively located on the outside of multiple sets of slide rods 19.

[0028] In this embodiment, during use, the outer tube 5 is inserted into the connecting sleeve 4. The rotating sleeve 11 drives the control sleeve 9 to rotate through multiple sets of sliding rods 19. Multiple sets of limiting rods 10 push the locking block 7 to engage in the locking groove 8. Multiple sets of pushing blocks 12 push the locking block 7 to move the control sleeve 9 and the outer tube 5. The control sleeve 9 stretches multiple sets of tension springs 21. The outer tube 5 squeezes the sealing gasket 13 to seal the connecting sleeve 4 and the outer tube 5. The limiting sleeve 18 is rotated clockwise to engage with the connecting sleeve 4 through a thread and abut against the top of multiple sets of positioning blocks 15, so that the bottom of the multiple sets of positioning blocks 15 abuts against the positioning groove 17 and squeezes the multiple sets of return springs 16, thereby completing the quick engagement with the outer tube 5.

[0029] More specifically, when it is necessary to disassemble the external pipe 5, the limiting sleeve 18 is rotated counterclockwise to release the contact with the multiple sets of positioning blocks 15. The multiple sets of reset springs 16 pull the positioning blocks 15 so that their bottom ends are disengaged from the positioning grooves 17, releasing the positioning of the rotating sleeve 11. The rotating sleeve 11 is rotated in the opposite direction to drive the control sleeve 9 to rotate through the slide rod 19, releasing the contact with the locking block 7 by the multiple sets of push blocks 12. The multiple sets of tension springs 21 pull the control sleeve 9 and drive the locking block 7 to move along the sliding hole 6, releasing the contact between the external pipe 5 and the sealing gasket 13. The locking block 7 is pushed out of the locking groove 8 by the multiple sets of variable diameter grooves 14 to release the locking with the external pipe 5, so that the external pipe 5 can be disassembled.

[0030] In summary, during use or operation of the overall equipment: When in use, the outer pipe 5 is inserted into the connecting sleeve 4. Rotating the rotating sleeve 11 drives the control sleeve 9 to rotate through multiple sets of sliding rods 19. Multiple sets of limit rods 10 push the locking block 7 to engage in the locking groove 8. Multiple sets of push blocks 12 push the locking block 7 to move the control sleeve 9 and the outer pipe 5. The control sleeve 9 stretches multiple sets of tension springs 21. The outer pipe 5 compresses the sealing gasket 13 to seal the connecting sleeve 4 and the outer pipe 5. Rotating the limit sleeve 18 clockwise allows it to engage with the connecting sleeve 4 through a threaded connection and abut against the top of multiple sets of positioning blocks 15. This causes the bottom of the multiple sets of positioning blocks 15 to abut against the positioning groove 17 and compress the multiple sets of return springs 16, thereby completing the quick engagement with the outer pipe 5.

[0031] When it is necessary to disassemble the external pipe 5, rotate the limiting sleeve 18 counterclockwise to release the contact with the multiple sets of positioning blocks 15. The multiple sets of reset springs 16 pull the positioning blocks 15 so that their bottom ends are disengaged from the positioning grooves 17, releasing the positioning of the rotating sleeve 11. Rotate the rotating sleeve 11 in the opposite direction to drive the control sleeve 9 to rotate through the slide rod 19, releasing the contact with the locking block 7 by the multiple sets of push blocks 12. The multiple sets of tension springs 21 pull the control sleeve 9 and drive the locking block 7 to move along the sliding hole 6, releasing the contact between the external pipe 5 and the sealing gasket 13. The multiple sets of variable diameter grooves 14 push the locking block 7 out of the slot 8 to release the connection with the external pipe 5, so that the external pipe 5 can be disassembled.

[0032] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. 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 corrosion-resistant water pump, comprising a pump body (1), characterized in that: The pump body (1) is provided with a pumping end (2) and an output end (3) on the top surface of the pump body (1). Both the pumping end (2) and the output end (3) are provided with quick-connect mechanisms. The quick-connect mechanism includes a connecting sleeve (4) and an outer pipe (5). The connecting sleeve (4) is fixed at the top of the output end (3) and the pumping end (2). The outer pipe (5) is inserted into the connecting sleeve (4). The outer wall of the connecting sleeve (4) is provided with a sliding hole (6). The sliding hole (6) is provided with multiple sets of locking blocks (7) that slide on each of them. The outer pipe (5) is provided with a sliding block (7) on the outside. The wall is provided with a slot (8), and the slot (8) is provided in multiple sets and is engaged with multiple sets of card blocks (7). The outer side of the multiple sets of card blocks (7) is provided with a control sleeve (9). The outer wall of the control sleeve (9) is fixedly provided with a limiting rod (10). The limiting rod (10) is provided in multiple sets and is respectively abutted against the outer side of the multiple sets of card blocks (7). The outer wall of the connecting sleeve (4) is rotatably provided with a rotating sleeve (11). The outer wall of the rotating sleeve (11) is fixedly provided with a push block (12). The push block (12) is provided in multiple sets and is respectively abutted against the outer wall of the multiple sets of card blocks (7).

2. The corrosion-resistant water pump according to claim 1, characterized in that: The inner side of the connecting sleeve (4) is provided with a sealing gasket (13).

3. A corrosion-resistant water pump according to claim 2, characterized in that: The outer side of each of the multiple push blocks (12) is set to be arc-shaped.

4. A corrosion-resistant water pump according to claim 3, characterized in that: multiple sets The inner side of each limiting rod (10) is provided with a variable diameter groove (14), and the multiple sets of the locking blocks (7) slide in the multiple sets of variable diameter grooves (14).

5. A corrosion-resistant water pump according to claim 4, characterized in that: The outer wall of the rotating sleeve (11) is provided with a positioning block (15). The positioning block (15) is provided in multiple sets and the top of each set is connected to a reset spring (16). The bottom of each set of reset springs (16) is fixedly connected to the outer wall of the rotating sleeve (11). The outer wall of the connecting sleeve (4) is provided with a positioning groove (17). The positioning groove (17) is provided in multiple sets and abuts against each of the multiple sets of positioning blocks (15).

6. A corrosion-resistant water pump according to claim 5, characterized in that: The outer wall of the connecting sleeve (4) is threaded with a limiting sleeve (18), which abuts against the top of multiple positioning blocks (15).

7. A corrosion-resistant water pump according to claim 6, characterized in that: The outer wall of the control sleeve (9) is fixedly provided with a slide rod (19), and there are multiple sets of slide rods (19). The outer wall of the rotating sleeve (11) is provided with a slide groove (20), and there are multiple sets of slide grooves (20) which are slidably connected to multiple sets of slide rods (19).

8. A corrosion-resistant water pump according to claim 7, characterized in that: A tension spring (21) is provided between the bottom surface of the control sleeve (9) and the rotating sleeve (11). The tension spring (21) is provided in multiple sets and is respectively located on the outside of multiple sets of slide rods (19).