Variable frequency water pump damping and limiting device
By designing a vibration damping and limiting device for variable frequency water pumps, and utilizing a combination of limiting sliding parts and buffer parts to adjust the size of the fixed plate, the vibration energy of the variable frequency water pump is reduced, thus solving the problems of noise pollution and equipment damage caused by the vibration of the variable frequency water pump, achieving stable operation of the equipment and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FU JIAN ER JIAN JIAN SHE JI TUAN GONG SI
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-14
AI Technical Summary
The vibration energy generated by the variable frequency water pump during use is transmitted to the mounting frame, resulting in noise pollution and equipment damage, and increasing operating costs.
A vibration damping and limiting device for a variable frequency water pump is designed. By combining limiting sliding parts and buffer parts, the size of the fixed plate is adjusted, and longitudinal and transverse buffer parts are used to reduce vibration energy and reduce the vibration impact between the support and the ground.
It effectively reduces noise pollution, extends the service life of equipment, lowers operating costs, and reduces vibration and friction between the equipment and the installation structure.
Smart Images
Figure CN224120442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a shock-absorbing and limiting device, and in particular to a shock-absorbing and limiting device for a variable frequency water pump, belonging to the technical field of variable frequency water pumps. Background Technology
[0002] A variable frequency pump is a type of pump that controls the speed of an AC motor by changing the frequency of the motor's power supply through a frequency converter. This technology allows the pump to adjust its operating speed according to actual needs, thereby regulating the flow and pressure of water and achieving energy saving and precise control.
[0003] Before use, the variable frequency water pump is fixed to the mounting frame with bolts. When the variable frequency water pump is in use, the internal structure will vibrate. The vibration energy and amplitude will be transmitted to the mounting frame, and the mounting frame and the surrounding bottom surface will be affected by the vibration, which will generate a lot of noise and affect the surrounding environment. Moreover, when the variable frequency water pump vibrates, it will damage the connection structure between the variable frequency water pump and the mounting frame, causing damage to the equipment or device and increasing the operating cost.
[0004] Therefore, it is urgent to improve the vibration damping and limiting device of the variable frequency water pump to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this utility model is to provide a vibration damping and limiting device for a variable frequency water pump. Through the limiting sliding member, the size of the fixed plate on the variable frequency water pump can be adjusted to increase the practical effect of the device. Then, under the action of the longitudinal buffer member and the transverse buffer member, the vibration energy generated by the variable frequency water pump can be reduced, the vibration impact on the support member can be reduced, and the vibration between the support member and the ground can be reduced, thus avoiding the generation of large noise.
[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a main body, on which two fixing plates are symmetrically connected, and each fixing plate has a mounting hole at both ends; and a shock-absorbing mechanism adapted to connect with the fixing plates, the shock-absorbing mechanism including a sliding limit member and two shock-absorbing members disposed on the sliding limit member; wherein, the shock-absorbing members include a transverse buffer member and a longitudinal buffer member disposed on the transverse member, and the longitudinal buffer member corresponds to the corresponding mounting hole on the fixing plate.
[0007] Preferably, the sliding limiting member includes a support member, the support member has a limiting groove, a bidirectional threaded rod is rotatably connected to the support member, and threaded blocks are symmetrically threaded at both ends of the bidirectional threaded rod, and the threaded blocks are slidably connected in the limiting groove.
[0008] Preferably, a rotating base is fixedly connected to the support member, and one end of the bidirectional threaded rod passes through the rotating base and is connected to an input spline.
[0009] Preferably, the transverse buffer includes a groove block with a sliding groove, the bottom of the groove block is connected to a threaded block, a slider is slidably connected inside the groove block, and springs are connected to both sides of the slider. The end of the springs away from the slider is connected to the inner wall of the sliding groove.
[0010] Preferably, the slider is further connected to two sides by sliding rods, one end of which penetrates the sidewall of the sliding groove, and the spring is sleeved on the outside of the sliding rod.
[0011] Preferably, the longitudinal buffer includes a U-shaped connecting plate, a second spring connected to the top of the connecting plate, and a movable plate connected to the end of the second spring away from the connecting plate. A fixed base is connected to the movable plate, and a second mounting hole corresponding to the first mounting hole is provided on the fixed base. The first mounting hole and the second mounting hole are connected by bolts. The connecting plate is connected to the slider.
[0012] Preferably, the bottom of the movable plate is connected to a bolt rod corresponding to the second spring, the second spring is sleeved on the outside of the bolt rod, and one end of the bolt rod passes through one side wall of the connecting plate and is threaded with an adjusting nut.
[0013] Preferably, the fixed base is provided with a cushioning pad.
[0014] This utility model has at least the following beneficial effects:
[0015] 1. The limiting sliding component can be adjusted according to the size of the fixed plate on the variable frequency water pump, increasing the practical effect of the device. Then, under the action of the longitudinal and transverse buffer components, the vibration energy generated by the variable frequency water pump can be reduced, reducing the vibration impact on the support component, thereby reducing the vibration between the support component and the ground, avoiding the generation of large noise. In addition, after the body is damped, the vibration friction between the body and the installation structure is reduced, extending the service life of the equipment and structure and reducing the operating cost. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the isometric three-dimensional structure provided by this utility model;
[0018] Figure 2 Provided by this utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0019] Figure 3 A side view provided for this utility model;
[0020] Figure 4 A front view provided for this utility model;
[0021] Figure 5 Provided by this utility model Figure 4 Enlarged schematic diagram of the structure at point B.
[0022] In the diagram: 1. Main body; 2. Fixed plate; 3. Mounting hole one; 4. Shock absorption mechanism; 5. Sliding limit component; 6. Shock absorber; 7. Longitudinal buffer component; 8. Lateral buffer component; 9. Support component; 10. Limiting groove; 11. Bidirectional threaded rod; 12. Threaded block; 13. Rotating base; 14. Input spline; 15. Groove block; 16. Slider; 17. Spring one; 18. Sliding rod; 19. Connecting plate; 20. Spring two; 21. Movable plate; 22. Fixed base; 23. Mounting hole two; 24. Bolt rod; 25. Adjusting nut; 26. Buffer pad. Detailed Implementation
[0023] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0024] like Figures 1-5 As shown, the variable frequency water pump vibration damping and limiting device provided in this embodiment includes a body 1, which refers to the variable frequency water pump body 1. The variable frequency water pump is an existing technology device, and its specific structure and operating principle will not be described in detail here. Two fixing plates 2 are symmetrically connected to the bottom of the body 1. The fixing plates 2 have mounting holes 3 at both ends. The device also includes a vibration damping mechanism 4 suitable for connecting with the fixing plates 2. The vibration damping mechanism 4 includes a sliding limiting member 5 and two vibration damping members 6 provided on the sliding limiting member 5. The limiting sliding member is used to adjust the distance between the two vibration damping members 6. The vibration damping member 6 includes a transverse buffer member 8 and a longitudinal buffer member 7 provided on the transverse member. The longitudinal buffer member 7 corresponds to the corresponding mounting holes 3 on the fixing plates 2.
[0025] Due to different usage requirements, the sizes of the selected variable frequency water pumps are also different, and therefore the sizes of the fixing plates 2 on the variable frequency water pumps are also different. Therefore, when using this device, the distance between the two damping components 6 can be adjusted using the limiting sliding parts to adapt to the size of the fixing plates 2 on the variable frequency water pump. After adjusting the distance between the two damping components 6, the fixing plates 2 are connected to the longitudinal buffer component 7 to realize the installation operation of the variable frequency water pump. When the main body 1 is in use, the vibration energy generated by its operation will first be transmitted to the longitudinal buffer component 7, which will buffer the longitudinal vibration of the main body 1 and reduce the vibration force transmitted to the transverse buffer component 8. Then, the vibration energy will be transmitted to the transverse buffer component 8, which will buffer the vibration energy laterally. In this process, the vibration energy generated by the main body 1 is weakened layer by layer to avoid vibration damage between the main body 1 and the connected structure.
[0026] To achieve the above effects and objectives, therefore, as Figure 4 As shown, the sliding limiting member 5 includes a support member 9, a limiting groove 10 is formed on the support member 9, and a bidirectional threaded rod 11 is rotatably connected to the support member 9. Threaded blocks 12 are symmetrically threaded at both ends of the bidirectional threaded rod 11, and the threaded blocks 12 are slidably connected in the limiting groove 10. When the bidirectional threaded rod 11 is rotated, it will drive the two threaded blocks 12 connected to it to move synchronously relative to each other.
[0027] To facilitate rotation of the bidirectional threaded rod 11, such as Figure 1 as well as Figure 4 As shown, one end of the bidirectional threaded rod 11 is connected to an input spline 14. The input spline 14 can be connected to a corresponding power input device. There is no limitation on the power input device; it can be selected according to the actual situation. When the bidirectional threaded rod 11 rotates, in order to facilitate the stability of the end of the bidirectional threaded rod 11 connected to the input spline 14, a rotating base 13 is fixedly connected to the support member 9. One end of the bidirectional threaded rod 11 passes through the rotating base 13 and is connected to the input spline 14. The rotating base 13 provides support and stability for the rotation of the bidirectional threaded rod 11.
[0028] like Figure 2As shown, the transverse buffer 8 further includes a groove block 15 with a sliding groove. The bottom of the groove block 15 is connected to the threaded block 12. A slider 16 is slidably connected inside the groove block 15. Springs 17 are connected to both sides of the slider 16. The end of the spring 17 away from the slider 16 is connected to the inner wall of the sliding groove. When vibration energy is transmitted to the transverse buffer 8, the slider block will slide in the sliding groove due to the vibration. Under the action of the spring 17, the slider 16 will be elastically limited. The slider 16 squeezes the spring 17, and the spring 17 will deform and store energy. When the spring 17 loses the squeeze of the slider 16, it will release energy, reducing the impact of vibration on the groove block 15, thereby achieving the purpose of shock absorption. The number of transverse buffers 8 is not limited. Multiple transverse buffers 8 can be arranged vertically and horizontally to buffer and absorb shock in multiple horizontal directions. The working principle is as described above and will not be elaborated in detail.
[0029] Next, sliding rods 18 are connected to both sides of the slider 16. One end of the sliding rod 18 passes through the side wall of the sliding groove. Spring 17 is sleeved on the outside of the sliding rod 18. When the sliding rod 18 deforms, it limits the spring 17 so that the spring 17 will not bend radially, thus ensuring the stability during the buffering operation.
[0030] Furthermore, such as Figure 4 as well as Figure 5 As shown, the longitudinal buffer 7 includes a U-shaped connecting plate 19, a second spring 20 connected to the top of the connecting plate 19, and a movable plate 21 connected to the end of the second spring 20 away from the connecting plate 19. A fixed base 22 is connected to the movable plate 21, and the fixed base 22 has a second mounting hole 23 corresponding to the first mounting hole 3. The first mounting hole 3 and the second mounting hole 23 are connected by bolts. The above structure is the installation structure of the variable frequency water pump. The connecting plate 19 is connected to the slider 16. When vibration is transmitted to the longitudinal buffer 7, the movable plate 21 will be vibrated. The vibration is caused by the influence of the movable plate 21. When the movable plate 21 vibrates, its vibration energy is transmitted to the connecting plate 19 by the weakening effect of the second spring 20. When the movable plate 21 vibrates laterally, its lateral vibration force is transmitted to the first spring 17 through the second spring 20, the connecting plate 19, and the slider 16. When the second spring 20 is squeezed by the movable plate 21, it will deform and store energy. When the second spring 20 is no longer squeezed by the movable plate 21, it will release energy, reduce the influence of vibration on the connecting plate 19, and thus reduce the transmission of vibration energy.
[0031] The bottom of the movable plate 21 is connected to a bolt rod 24 corresponding to the second spring 20. The second spring 20 is sleeved on the outside of the bolt rod 24. One end of the bolt rod 24 passes through one side wall of the connecting plate 19 and is threaded with an adjusting nut 25. This stabilizes and limits the state of the second spring 20 when it deforms. Furthermore, by turning the adjusting nut 25, the deformation distance of the second spring 20 is changed, thereby changing the elastic force between the movable plate 21 and the connecting plate 19 to adapt to the needs of actual use.
[0032] Finally, as Figure 5 As shown, in order to avoid frictional damage between the fixed base 22 and the fixed plate 2 during vibration, a buffer pad 26 is provided on the fixed base 22. When the fixed plate 2 is installed on the fixed base 22, the buffer pad 26 is located between the fixed plate 2 and the fixed base 22, and provides vibration buffering and friction protection between the two.
[0033] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A vibration damping and limiting device for a variable frequency water pump, comprising a body (1), wherein two fixing plates (2) are symmetrically connected to the bottom of the body (1), and mounting holes (3) are respectively provided at both ends of the fixing plates (2), characterized in that: Also includes: A shock-absorbing mechanism (4) suitable for connection with the fixed plate (2), the shock-absorbing mechanism (4) includes a sliding limit member (5) and two shock-absorbing members (6) disposed on the sliding limit member (5); The shock absorber (6) includes a transverse buffer (8) and a longitudinal buffer (7) disposed on the transverse buffer. The longitudinal buffer (7) corresponds to the corresponding mounting hole (3) on the fixing plate (2).
2. The variable frequency water pump vibration damping and limiting device according to claim 1, characterized in that: The sliding limiting member (5) includes a support member (9), a limiting groove (10) is provided on the support member (9), a bidirectional threaded rod (11) is rotatably connected to the support member (9), and threaded blocks (12) are symmetrically threaded at both ends of the bidirectional threaded rod (11), and the threaded blocks (12) are slidably connected in the limiting groove (10).
3. The variable frequency water pump vibration damping and limiting device according to claim 2, characterized in that: A rotating base (13) is fixedly connected to the support member (9), and one end of the bidirectional threaded rod (11) passes through the rotating base (13) and is connected to an input spline (14).
4. The variable frequency water pump vibration damping and limiting device according to claim 1, characterized in that: The transverse buffer (8) includes a groove block (15) with a sliding groove. The bottom of the groove block (15) is connected to a threaded block (12). A slider (16) is slidably connected inside the groove block (15). A spring (17) is connected to both sides of the slider (16). The end of the spring (17) away from the slider (16) is connected to the inner wall of the sliding groove.
5. The variable frequency water pump vibration damping and limiting device according to claim 4, characterized in that: The slider (16) is also connected to two sliding rods (18) on both sides. One end of the sliding rod (18) passes through the side wall of the sliding groove, and the spring (17) is sleeved on the outside of the sliding rod (18).
6. The variable frequency water pump vibration damping and limiting device according to claim 4, characterized in that: The longitudinal buffer (7) includes a U-shaped connecting plate (19), a second spring (20) connected to the top of the connecting plate (19), and a movable plate (21) connected to the end of the second spring (20) away from the connecting plate (19). A fixed base (22) is connected to the movable plate (21). The fixed base (22) has a second mounting hole (23) corresponding to the first mounting hole (3), and the first mounting hole (3) and the second mounting hole (23) are connected by bolts. The connecting plate (19) is connected to the slider (16).
7. The variable frequency water pump vibration damping and limiting device according to claim 6, characterized in that: The bottom of the movable plate (21) is connected to a bolt rod (24) corresponding to the second spring (20). The second spring (20) is sleeved on the outside of the bolt rod (24). One end of the bolt rod (24) passes through one side wall of the connecting plate (19) and is threaded with an adjusting nut (25).
8. A variable frequency water pump vibration damping and limiting device according to claim 6, characterized in that: A buffer pad (26) is provided on the fixed base (22).