Blade capable of adjusting pump
By designing locking components and detachable structures on the adjustable pump blades, the problems of nut corrosion and detachment and impurity impact are solved, achieving stable and convenient blade replacement and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-03-31
AI Technical Summary
Existing adjustable pump blades are prone to detachment due to rust on the nuts in humid environments, leading to damage. They are also susceptible to damage from impacts by impurities during operation, increasing maintenance and replacement costs.
A fixed installation structure with locking function was designed, including a locking component and a detachable blade design. Through the combination of threaded connector and connecting seat, a positioning rod and spring are used to achieve sealing and stabilization, avoid nut corrosion and facilitate blade replacement.
It effectively prevents the nuts from corroding and falling off, reduces blade damage, lowers maintenance costs, and simplifies the blade replacement process through its detachable design, saving resources.
Smart Images

Figure CN224064569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pump blade technology, and in particular to an adjustable pump blade. Background Technology
[0002] The blades generate centrifugal force through high-speed rotation, which helps the pump body quickly expel external air and create a vacuum state when starting up, thereby drawing in liquid. During the operation of the pump, the blades continuously drive the water flow circulation. The self-priming pump blades ensure the pump's self-priming capability and efficient operation by optimizing the pump's structural design and improving water flow efficiency, adapting to different working environments and needs.
[0003] Existing adjustable pump blades are generally fixed to the motor output shaft with nuts. During long-term use, since adjustable pumps typically operate in humid environments and their internal rotating connection components lack corrosion protection, the nuts on the motor output shaft are prone to corrosion. During motor operation, vibration can cause rusted nuts to detach from the motor output shaft, leading to blade damage. In addition, during pump operation, various impurities are often drawn into the pump body. If large or hard objects such as stones are present in these impurities, they can cause impact to the impeller, resulting in blade damage. Impellers are generally expensive, and replacing the entire impeller would increase the pump's operating costs.
[0004] To address the problem that rusted nuts can easily detach from the motor's output shaft and damage the blades, since regulating pumps typically operate in humid environments, a locking mounting structure is designed to overcome this issue within a sealed environment. Utility Model Content
[0005] To overcome the problem that rusted nuts can easily fall off the motor output shaft and damage the blades, since regulating pumps generally operate in humid environments.
[0006] The technical solution of this utility model is as follows: an adjustable pump blade, including an adjustable pump body, a lower housing and a slot, the adjustable pump body is provided with a lower housing, the side of the lower housing is fixedly connected with a slot, the lower housing is provided with a locking component for fastening the connection with the motor output end of the adjustable pump body, and the slot is provided with an installation component for fixing.
[0007] Preferably, the motor output end of the adjustable pump body is fixedly connected to a motor shaft, and one end of the motor shaft is fixedly connected to a threaded connector. The threaded connector is provided with a second sealing ring, which contacts and fits against the lower end of the lower housing.
[0008] Preferably, the upper housing is fixedly connected to the upper end of the lower housing. Both the lower housing and the upper housing have openings. The motor shaft passes through the openings on the lower housing and the upper housing. One end of the threaded connector is threadedly connected to a connecting seat. A handle is fixedly connected to one side of the connecting seat. One end of the handle has a groove. A positioning rod is slidably installed in the groove at one end of the handle. A spring is installed in the groove at one end of the handle. The upper housing, connecting seat, handle, spring and positioning rod together form a locking assembly.
[0009] Preferably, the side of the upper housing is provided with a round hole, and a sealing ring is provided at the round hole of the upper housing. One end of the positioning rod passes through the round hole of the upper housing and is used to fix the handle.
[0010] Preferably, the motor shaft has an arc-shaped notch, and the inner wall of the lower housing has a protrusion that matches the arc-shaped notch of the motor shaft.
[0011] Preferably, the upper end of the upper housing is threadedly connected to a cover, and the upper end of the cover is provided with a hexagonal screw hole. The cover is used to seal the upper opening of the upper housing.
[0012] Preferably, a card block is slidably provided on the card slot, and the blade body is fixedly connected to the card block, with the card block and card slot being compatible.
[0013] Preferably, the upper end of the slot is provided with a screw hole, and a fixing plate is fixedly installed on the upper end of the slot by bolts. The slot and the fixing plate together constitute the installation assembly.
[0014] The beneficial effects of this utility model are as follows: The blade is connected to the connecting seat via a threaded connector, thereby mounting the lower housing onto the output shaft of the adjustable pump body. The locking component can lock the handle on the connecting seat via a positioning rod, so that the connecting seat will not loosen during use. Furthermore, when the lower housing needs to be removed later, it can be done simply by turning the handle without the need for other tools. During pump operation, various impurities are often sucked into the pump body, damaging the blade body. When the blade body needs to be replaced, simply remove the fixing plate and then install the new blade body into the slot. The blade body adopts a detachable design, so when the blade body is damaged, it is not necessary to replace the entire impeller, saving resources and making replacement convenient. Attached Figure Description
[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the adjustable pump blades and the adjustable pump body of this utility model.
[0016] Figure 2 The diagram shown is a three-dimensional structural schematic of the blades and threaded connector of the adjustable pump of this utility model.
[0017] Figure 3 The diagram shown is a three-dimensional structural schematic of the blades and positioning rod of the adjustable pump of this utility model.
[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the blades and locking block of the adjustable pump of this utility model.
[0019] Figure 5 The diagram shown is a three-dimensional structural diagram of the adjustable pump blades and lower housing of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Adjustable pump body; 2. Motor shaft; 3. Lower housing; 4. Slot; 5. Upper housing; 6. Blade body; 7. Locking block; 8. Fixing plate; 9. Connecting seat; 10. Handle; 11. Spring; 12. Positioning rod; 13. Top cover; 14. Sealing ring one; 15. Sealing ring two; 16. Threaded connector. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-5 This utility model provides an embodiment of an adjustable pump impeller, including an adjustable pump body 1, a lower housing 3, and a slot 4. The adjustable pump body 1 contains the lower housing 3, and the slot 4 is fixedly connected to the side of the lower housing 3. The lower housing 3 is provided with a locking component for fastening the connection to the motor output end of the adjustable pump body 1. The slot 4 is provided with a mounting component for fixing. The locking component ensures that the lower housing 3 will not loosen by locking it, without the need for other tools. During the operation of the pump, various impurities are often sucked into the pump body and damaged. When the impeller needs to be repaired, the mounting component can be removed. The detachable design saves resources and makes replacement convenient.
[0023] Please see Figure 1 and Figure 5In this embodiment, a motor shaft 2 is fixedly connected to the motor output end of the adjustable pump body 1. A threaded connector 16 is fixedly connected to one end of the motor shaft 2. A sealing ring 15 is provided on the threaded connector 16. The sealing ring 15 contacts and fits against the lower end of the lower housing 3. An upper housing 5 is fixedly connected to the upper end of the lower housing 3. Both the lower housing 3 and the upper housing 5 have openings. The motor shaft 2 passes through the openings on the lower housing 3 and the upper housing 5. A connecting seat 9 is threaded to one end of the threaded connector 16. A handle 10 is fixedly connected to one side of the connecting seat 9. A groove is provided in one end of the handle 10. A positioning rod 12 is slidably arranged in the groove at one end of the handle 10. A spring 11 is provided in the groove at one end of the handle 10. The upper housing 5, the connecting seat 9, the handle 10, the spring 11, and the positioning rod 12 together form a locking assembly. The side of the upper housing 5 is provided with A sealing ring 14 is provided at the round hole of the upper housing 5. One end of the positioning rod 12 passes through the round hole of the upper housing 5. The positioning rod 12 is used to fix the handle 10. The motor shaft 2 is provided with an arc-shaped notch. The inner wall of the lower housing 3 is provided with a protrusion that matches the arc-shaped notch of the motor shaft 2. The upper end of the upper housing 5 is threadedly connected to the upper cover 13. The upper end of the upper cover 13 is provided with a hexagonal screw hole. The upper cover 13 is used to seal the upper opening of the upper housing 5. The sealing ring 15 is used to block the lower opening of the upper housing 5. The sealing ring 14 is used to block the gap between the side hole of the upper housing 5 and the positioning rod 12. The upper cover 13 is used to block the upper end of the upper housing 5, thus forming a sealed space. When the lower housing 3 needs to be removed later, the positioning rod 12 is pushed back into the groove at one end of the handle 10. Then, the lower housing 3 can be removed simply by turning the handle 10.
[0024] Please see Figure 1 and Figure 5 In this embodiment, a locking block 7 is slidably disposed on the locking slot 4, and a blade body 6 is fixedly connected to the locking block 7. The locking block 7 is adapted to the locking slot 4. A screw hole is provided at the upper end of the locking slot 4, and a fixing plate 8 is fixedly installed at the upper end of the locking slot 4 by bolts. The locking block 7 and the fixing plate 8 together constitute an installation assembly. When the blade body 6 needs to be replaced, the fixing plate 8 is removed, and then the locking block 7 on the new blade body 6 is aligned with the locking slot 4 and inserted. The fixing plate 8 is then re-fixed to complete the replacement.
[0025] During use, first align the protrusion on the lower housing 3 with the matching arc-shaped notch on the motor shaft 2, and insert the lower housing 3 onto the motor shaft 2. Simultaneously, the threaded connector 16 passes through the hole in the upper housing 5 and is located inside the upper housing 5. Then, connect the connector 9 to the threaded connector 16. Tighten the connector 9 by turning the handle 10. After tightening the handle 10, the positioning rod 12 in the groove at one end of the handle 10 is ejected by the spring 11 and passes through the opening on the upper housing 5. The upper housing 5 fixes the positioning rod 12, thus locking the connector 9 onto the threaded connector 16. After completing the above steps, use a hex wrench to fix the upper cover 13 onto the upper housing 5. Seal ring 2 15... The sealing ring 14 is used to block the lower opening of the upper housing 5, and the sealing ring 14 is used to block the gap between the side hole of the upper housing 5 and the positioning rod 12. The upper cover 13 is used to block the upper end of the upper housing 5, thus forming a sealed space to prevent the threaded connector 16 and the connecting seat 9 from being corroded in a humid environment. During the operation of the pump, various impurities are often sucked into the pump body. Larger impurities will damage the blade body 6 during rotation. When the blade body 6 needs to be replaced, simply remove the screw at the upper end of the slot 4 to remove the fixing plate 8. Then, align the locking block 7 on the new blade body 6 with the slot 4 and insert it. Re-fix the fixing plate 8 to complete the replacement.
[0026] Through the above steps, the blade is connected to the connecting seat 9 via the threaded connector 16, thereby mounting the lower housing 3 onto the output shaft of the adjustable pump body 1. The locking component can lock the handle 10 on the connecting seat 9 via the positioning rod 12, so that the connecting seat 9 will not loosen during use. When the lower housing 3 needs to be removed later, it can be removed simply by turning the handle 10 without the need for other tools. During the operation of the pump, various impurities are often sucked into the pump body, which can damage the blade body 6. When the blade body 6 needs to be replaced, the fixing plate 8 can be removed, and then the new blade body 6 can be installed on the slot 4. The blade body 6 adopts a detachable design, so when the blade body 6 is damaged, it is not necessary to replace the entire impeller, which saves resources and makes replacement convenient.
[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A blade of an adjustable pump comprising an adjustable pump body (1); characterized in that: Also include the lower shell (3) and the card slot (4), adjustable pump body (1) is provided with lower shell (3), the side of lower shell (3) is fixedly connected with the card slot (4), lower shell (3) is provided with locking assembly for fastening and adjustable pump body (1) motor output end connection, the card slot (4) is provided with mounting assembly for fixing, the motor output end of adjustable pump body (1) is fixedly connected with motor shaft (2), one end of motor shaft (2) is fixedly connected with threaded connector (16), threaded connector (16) is provided with sealing ring two (15), sealing ring two (15) is in contact with the lower end of lower shell (3).
2. The adjustable pump vane of claim 1, wherein: The upper end of lower shell (3) is fixedly connected with upper shell (5), and the upper shell (5) is provided with an opening, and the motor shaft (2) passes through the openings of lower shell (3) and upper shell (5), one end of threaded connector (16) is threadedly connected with connecting seat (9), one side of connecting seat (9) is fixedly connected with handle (10), one end of handle (10) is provided with a sliding slot, a positioning rod (12) is slidably arranged in the sliding slot of one end of handle (10), a spring (11) is arranged in the sliding slot of one end of handle (10), and the upper shell (5), the connecting seat (9), the handle (10), the spring (11) and the positioning rod (12) jointly constitute the locking assembly.
3. The adjustable pump vane of claim 2, wherein: The side of upper shell (5) is provided with a circular hole, and the circular hole of upper shell (5) is provided with sealing ring one (14), one end of positioning rod (12) passes through the circular hole of upper shell (5), and the positioning rod (12) is used for fixing the handle (10).
4. The adjustable pump vane of claim 3, wherein: The motor shaft (2) is provided with an arc-shaped notch, and the inner wall of the lower shell (3) is provided with a protrusion matched with the arc-shaped notch of the motor shaft (2).
5. The adjustable pump vane of claim 4, wherein: The upper end of upper shell (5) is threadedly connected with upper cover (13), and the upper end of upper cover (13) is provided with a hexagonal screw hole, and the upper cover (13) is used for sealing the upper end opening of upper shell (5).
6. The adjustable pump vane of claim 5, wherein: The card slot (4) is slidably provided with a clamping block (7), the clamping block (7) is fixedly connected with a blade body (6), and the clamping block (7) is matched with the card slot (4).
7. The adjustable pump vane of claim 6, wherein: The upper end of the card slot (4) is provided with a screw hole, and the upper end of the card slot (4) is fixedly installed with a fixed plate (8) through a bolt, and the clamping block (7) and the fixed plate (8) jointly constitute the mounting assembly.