A high-sealing detachable rotor pump
The rotor pump, with its multi-seal structure and detachable design, solves the problems of insufficient sealing and stability, achieving high sealing performance and convenient replacement of vulnerable parts, thereby improving the operational reliability and maintenance efficiency of the equipment.
Patent Information
- Application Number
- CN202521758307.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-19
AI Technical Summary
Existing rotary pumps have shortcomings in sealing performance and structural stability, leading to problems such as liquid leakage, environmental pollution, equipment vibration, and maintenance difficulties, especially when conveying corrosive or volatile liquids.
It adopts a multi-seal structure and a detachable design, including flange fixing rubber rings at both ends of the sleeve, welding and bolting connection between the base and the support plate, which enhances the overall stability. The protective box protects the rotor, achieving double sealing and convenient replacement of vulnerable parts.
It improves sealing performance, reduces liquid leakage and environmental pollution, lowers maintenance costs and safety hazards, extends equipment lifespan, and enhances operational reliability and maintenance efficiency.
Smart Images

Figure CN224679676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotor pump technology, and in particular to a highly sealing detachable rotor pump. Background Technology
[0002] Existing rotary pumps have significant deficiencies in sealing performance. In traditional structures, the connection between the pump body and the end cover often uses a single sealing method, and the fit between the seal and the flange or sleeve is insufficient. This makes them prone to liquid leakage due to vibration or pressure changes, which not only reduces the conveying efficiency but also causes environmental pollution due to media leakage. The leakage problem is particularly prominent when conveying corrosive or volatile liquids, which increases equipment maintenance costs and safety hazards, and cannot meet the requirements of high sealing conditions.
[0003] Meanwhile, traditional rotor pumps have poor overall structural stability, and the connection strength between the base and supporting components is insufficient. They are prone to large vibrations during operation, which can lead to loose connections between components and affect the service life of the equipment. In addition, most rotor pumps adopt an integrated design, making it difficult to disassemble the components. When vulnerable parts such as internal rotors and seals need to be replaced, the entire pump must be disassembled, which takes a long time to repair. Furthermore, the protective structure is simple, and the rotor is easily affected by external impurities during operation, which further increases the probability of equipment failure. Summary of the Invention
[0004] The present invention aims to solve the technical problems existing in the prior art and provide a highly sealing detachable rotor pump.
[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a high-sealing detachable rotor pump, including a base, a support plate, a fixing plate and a fixing block are fixedly connected to the upper end of the base, a sleeve is fixedly connected to the upper end of the support plate, a pump body is fixedly connected to the outside of the sleeve, and an inlet is fixedly connected to the pump body through a connecting block.
[0006] Flanges are fixedly connected to both ends of the sleeve, and rubber rings are fixedly connected to the flanges;
[0007] A motor is fixedly connected to the upper end of the fixed plate, and a rotating shaft is fixedly connected to the output end of the motor. The rotating shaft is rotatably connected to the flange. A protective box is fixedly connected to the upper end of the fixed block, and the rotating shaft passes through the protective box and is fixedly connected to a rotor.
[0008] Preferably, the base is connected to the support plate, fixing plate, and fixing block by welding.
[0009] Preferably, the support plate is connected to the sleeve, the sleeve to the pump body, the pump body to the connecting block, and the connecting block to the liquid inlet by bolt fixing.
[0010] Preferably, the sleeve is connected to the flange by bolts at both ends, and the rubber ring is connected to the flange by adhesive bonding.
[0011] Preferably, the fixing plate is connected to the motor by bolts, and the motor output end is connected to the rotating shaft by a key.
[0012] Preferably, the fixed block is connected to the protective box by welding, and the rotating shaft is connected to the rotor by key connection.
[0013] The beneficial effects of this utility model are:
[0014] 1. This high-sealing detachable rotor pump solves the problem of insufficient sealing in traditional pumps through a multi-seal structure. The flanges at both ends of the sleeve are fixed with rubber rings, which form a double seal by adhering to the inner wall of the sleeve. Compared with the traditional single seal method, the fit is greatly improved. When the liquid is transported, the rubber rings further seal the gaps under pressure to prevent leakage. This not only avoids environmental pollution caused by media leakage, but also reduces efficiency loss caused by leakage, and reduces safety hazards and maintenance costs when transporting corrosive or volatile liquids.
[0015] 2. This high-sealing detachable rotor pump features a fixed connection between the base, support plate, and fixing block, which enhances overall stability. The support plate is fixed with bolt holes, and together with the fixing plate, it provides stable support for the motor, reducing operating vibration. This solves the problem of component loosening caused by insufficient connection strength in traditional structures. The reduced vibration amplitude reduces wear on various connection parts, extends the service life of the equipment, and ensures that the structural stability is not affected during long-term operation.
[0016] 3. This high-sealing detachable rotor pump features a protective box and a fixed block that form a closed space, protecting the rotor from external impurities. At the same time, the detachable design of the flange and sleeve allows for the replacement of vulnerable parts such as the internal rotor and rubber rings without the need for complete disassembly, solving the problem of difficult disassembly in traditional integrated designs. The rotor operates stably within the protective box, and the sealing structure not only improves operational reliability but also shortens maintenance time and reduces the probability of failure. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a high-sealing detachable rotor pump according to the present invention;
[0018] Figure 2 This is a schematic diagram of a high-sealing detachable rotor pump according to the present invention;
[0019] Figure 3 This is a cross-sectional schematic diagram of a high-sealing detachable rotor pump according to the present invention;
[0020] Figure 4This is a schematic diagram of a highly sealed detachable rotor pump according to the present invention.
[0021] Reference numerals in the attached drawings: 1. Base; 2. Support plate; 3. Bolt hole; 4. Flange; 5. Sleeve; 6. Pump body; 7. Connecting block; 8. Liquid inlet; 9. Protective box; 10. Rotating shaft; 11. Motor; 12. Fixing block; 13. Fixing plate; 14. Rubber ring; 15. Rotor. Detailed Implementation
[0022] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.
[0023] Example: A high-sealing, detachable rotor pump, such as Figures 1-4 As shown:
[0024] A high-sealing detachable rotor pump includes a base 1, a support plate 2 fixedly connected to the upper end of the base 1, bolt holes 3 provided on the support plate 2, and a sleeve 5 fixedly connected to the upper end of the support plate 2.
[0025] This part is the basic support structure of the pump. The base 1 forms a stable support for the sleeve 5 through the support plate 2. The bolt hole 3 can be used to fix the whole device to the mounting surface with bolts, which enhances the stability during operation, avoids the displacement of components due to vibration, provides a solid installation foundation for subsequent functional components, and ensures the rigidity of the overall structure of the pump body during operation.
[0026] A pump body 6 is fixedly connected to the outer center of the sleeve 5. A connecting block 7 is fixedly connected to the upper end of the pump body 6. An inlet 8 is fixedly connected to the upper end of the connecting block 7.
[0027] The pump body 6 serves as the core channel for liquid transportation and forms a collaborative structure with the sleeve 5. Liquid enters through the inlet 8 and is guided into the pump body 6 through the connecting block 7. The connecting block 7 acts as a transitional connection to ensure that the liquid flows smoothly into the pump body 6. The structural design of the outer center of the sleeve 5 provides an installation carrier for the pump body 6 and can also provide a certain degree of protection and limitation for the liquid flowing inside the pump body 6.
[0028] Both ends of the sleeve 5 are fixedly connected to flanges 4. The rubber ring 14 is inside the sleeve 5. Both sides of the sleeve 5 are fixedly connected to rubber rings 14, which are fixedly connected to the flanges 4.
[0029] The flange 4 seals and fixes both ends of the sleeve 5 to form a closed cavity. The rubber ring 14 is clamped between the sleeve 5 and the flange 4. Under the fastening force of the flange 4, it deforms and fills the gap, preventing liquid from leaking from both ends of the sleeve 5. This greatly improves the sealing performance of the pump body and ensures that the liquid flows inside the sleeve 5 along a preset path, avoiding leakage that could affect the efficiency of the pump.
[0030] A fixing plate 13 is fixedly connected to the upper end of the base 1, a motor 11 is fixedly connected to the upper end of the fixing plate 13, a rotating shaft 10 is fixedly connected to the output end of the motor 11, and the other side of the rotating shaft 10 is rotatably connected to the flange 4.
[0031] The fixed plate 13 provides a stable mounting platform for the motor 11. After the motor 11 starts, it outputs torque and transmits it to the rotating shaft 10 through the output end. The rotating shaft 10 achieves stable rotation under the support of the flange 4. The flange 4 plays a radial positioning role for the rotating shaft 10, reducing the shaking during rotation, ensuring the stability of power transmission, and providing continuous power for subsequent rotor operation.
[0032] A fixing block 12 is fixedly connected to the upper end of the base 1. The fixing block 12 is provided with bolt holes 3. A protective box 9 is fixedly connected to the upper end of the fixing block 12. The rotating shaft 10 passes through the protective box 9. The rotor 15 is inside the protective box 9. The rotor 15 is fixedly connected to the rotating shaft 10.
[0033] The fixing block 12 fixes the protective box 9 through the bolt hole 3, forming a closed space to protect the rotor 15. The rotating shaft 10 drives the rotor 15 to rotate inside the protective box 9. When the rotor 15 rotates, it cooperates with the inner wall of the protective box 9, causing the internal space volume to change periodically. The pressure difference generated by the volume change draws in the liquid and pushes it out, realizing the continuous delivery of the liquid. At the same time, the protective box 9 prevents the liquid from overflowing.
[0034] Working principle: This part is the basic support structure of the pump. The base 1 provides stable support to the sleeve 5 through the support plate 2. The bolt holes 3 allow the entire device to be fixed to the mounting surface with bolts, enhancing the stability during operation, preventing component displacement due to vibration, providing a solid mounting foundation for subsequent functional components, and ensuring the rigidity of the overall pump structure during operation.
[0035] The pump body 6, as the core channel for liquid transportation, forms a cooperative structure with the sleeve 5. Liquid enters through the inlet 8 and is guided into the pump body 6 via the connecting block 7. The connecting block 7 serves as a transition connection, ensuring smooth liquid flow into the pump body 6. The structural design on the outer center of the sleeve 5 provides an installation carrier for the pump body 6 and also provides a certain degree of protection and limitation for the liquid flowing inside the pump body 6.
[0036] Flange 4 seals and fixes both ends of sleeve 5, forming a closed cavity. Rubber ring 14 is clamped between sleeve 5 and flange 4. Under the tightening force of flange 4, it deforms, filling the gap and preventing liquid from leaking from both ends of sleeve 5. This significantly improves the sealing performance of the pump body, ensuring that the liquid flows inside sleeve 5 along a preset path and preventing leakage from affecting pump efficiency.
[0037] The mounting plate 13 provides a stable mounting platform for the motor 11. After the motor 11 starts, it outputs torque, which is transmitted to the rotating shaft 10 through the output end. The rotating shaft 10 achieves stable rotation under the support of the flange 4. The flange 4 plays a radial positioning role for the rotating shaft 10, reducing sway during rotation, ensuring the stability of power transmission, and providing continuous power for subsequent rotor operation.
[0038] The fixing block 12 fixes the protective box 9 through the bolt hole 3, forming a closed space to protect the rotor 15. The rotating shaft 10 drives the rotor 15 to rotate inside the protective box 9. When the rotor 15 rotates, it cooperates with the inner wall of the protective box 9, causing the internal space volume to change periodically. The pressure difference generated by the volume change draws in the liquid and pushes it out, realizing the continuous delivery of the liquid. At the same time, the protective box 9 prevents the liquid from overflowing.
[0039] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.
Claims
1. A high-sealing, detachable rotor pump, comprising a base (1), characterized in that: The base (1) is fixedly connected to a support plate (2), a fixing plate (13) and a fixing block (12) at its upper end. A sleeve (5) is fixedly connected to the upper end of the support plate (2). A pump body (6) is fixedly connected to the outside of the sleeve (5). An inlet (8) is fixedly connected to the pump body (6) through a connecting block (7). The sleeve (5) is fixedly connected to flanges (4) at both ends, and rubber rings (14) are fixedly connected to flanges (4); A motor (11) is fixedly connected to the upper end of the fixed plate (13), and a rotating shaft (10) is fixedly connected to the output end of the motor (11). The rotating shaft (10) is rotatably connected to the flange (4). A protective box (9) is fixedly connected to the upper end of the fixed block (12), and the rotating shaft (10) passes through the protective box (9) and is fixedly connected to the rotor (15).
2. The high-sealing detachable rotor pump according to claim 1, characterized in that: The base (1) is connected to the support plate (2), the fixing plate (13), and the fixing block (12) by welding.
3. A high-sealing, detachable rotor pump according to claim 2, characterized in that: The support plate (2) is connected to the sleeve (5), the sleeve (5) is connected to the pump body (6), the pump body (6) is connected to the connecting block (7), and the connecting block (7) is connected to the inlet (8) by bolts.
4. A high-sealing, detachable rotor pump according to claim 3, characterized in that: The sleeve (5) is connected to the flange (4) by bolts at both ends, and the rubber ring (14) is connected to the flange (4) by adhesive bonding.
5. A high-sealing, detachable rotor pump according to claim 4, characterized in that: The connection between the fixing plate (13) and the motor (11) is a bolt connection, and the connection between the output end of the motor (11) and the rotating shaft (10) is a key connection.
6. A high-sealing, detachable rotor pump according to claim 5, characterized in that: The connection between the fixed block (12) and the protective box (9) is by welding, and the connection between the rotating shaft (10) and the rotor (15) is by key connection.