Sound insulation and vibration reduction circulating pump

Abstract

The utility model discloses a sound insulation and vibration reduction circulating pump, and relates to the technical field of sound insulation and vibration reduction of circulating pumps. The pump comprises a pump body, and a motor is arranged at one end of the pump body. According to the utility model, the two groups of sound insulation plate sleeves are respectively connected with the upper sliding sleeve and the lower sliding sleeve through the two groups of driving assemblies, so that after water flow enters the water inlet end pipe and the water outlet end pipe through the circulating flow guide pipe to generate vibration, the sound insulation plate sleeves drive the driving assemblies to rotate and displace along with the vibration borne by the sound insulation plate sleeves; the upper sliding sleeve and the lower sliding sleeve are counterbalanced under the action of matching with the telescopic performance of the buffer spring, so that part of vibration thrust outside the sound insulation plate sleeve is counteracted; sound insulation is achieved on the pipe walls of the water inlet end pipe and the water outlet end pipe on the inner wall of the sound insulation plate sleeve, meanwhile, external buffering and damping effects are achieved on the outside, and the vibration influence on the water inlet end pipe and the water outlet end pipe when the water flow pressure is unstable is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound insulation and vibration reduction of circulating pumps, and in particular relates to a sound insulation and vibration reduction circulating pump. Background Art

[0002] A circulating pump is a type of equipment commonly used in industry and construction. A circulating pump is a pump used to transport circulating liquid for reaction, absorption, separation, and absorption liquid regeneration in a device. It has a low head and is only used to overcome the pressure drop of the circulation system. The working principle of a circulating pump is that the pump used to circulate water is called a circulating pump. The noise of a circulating water pump is caused by the irregular, intermittent, continuous or random sound generated by the water pump during operation. If the water pump generates noise, it will directly affect the lives of surrounding residents.

[0003] In the prior art, after searching Chinese patent number CN215419913U, a sound-insulating and vibration-reducing circulating pump is disclosed, which relates to the technical field of noise reduction and vibration reduction of circulating pumps, and includes a base, a motor, a sound-insulating jacket, a first elastic noise-reducing component and an elastic vibration-reducing component. The motor is arranged on the base; the sound-insulating jacket cover is arranged on the motor, and the interior of the sound-insulating jacket has a containing cavity, and a through hole is arranged on a side wall of the sound-insulating jacket close to the motor; the elastic vibration-reducing component is arranged in the containing cavity of the base for elastic vibration to absorb energy and reduce vibration. The utility model provides a sound-insulating and vibration-reducing circulating pump, wherein the first elastic noise-reducing component performs vibration energy absorption and noise reduction on the noise generated by the motor, and the elastic vibration-reducing component absorbs energy on the vibration generated by the motor.

[0004] When the circulation pump is running, if the flow state of the water flow at the pump inlet is not good, local small-scale cavitation will occur, causing the pump outlet pressure to fluctuate. The pressure fluctuation will cause the pressure and water volume in the pipeline system to change, and the water level in the expansion tank will also fluctuate, causing bubbles to burst in the pump and hit the blades to produce noise, causing vibration when the water flows through the inlet and outlet, and the start of the motor during operation will also cause the pump body to vibrate. In the above scheme, the motor is noise-reducing, energy-absorbing and shock-absorbing through elastic noise-reducing parts, resulting in the overall noise of the pump body still being transmitted along the pipeline, and the noise is transmitted through the pipeline, causing nuisance to the public.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a sound-insulating and vibration-reducing circulating pump to overcome the above-mentioned technical problems existing in the existing related technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a sound-insulating and vibration-reducing circulating pump, comprising a pump body, a motor is arranged at one end of the pump body, a water wheel box is fixedly installed at the other end of the pump body, an inlet pipe and an outlet pipe are respectively fixedly installed on the outer surface of the water wheel box, one end of the inlet pipe and the outlet pipe are fixedly connected with a circulating flow guide pipe through a sealing plate, the outer surfaces of the inlet pipe and the outlet pipe are sleeved with a sound insulation board sleeve, a fixing frame is arranged at the bottom of the motor, and a vertical pole is fixedly connected to the top of the fixing frame;

[0009] The outer surfaces of the vertical poles are slidably connected with an upper sliding sleeve and a lower sliding sleeve, respectively, a buffer spring is fixedly connected between the upper sliding sleeve and the lower sliding sleeve, and the outer surfaces of the upper sliding sleeve and the lower sliding sleeve are provided with driving components, and one end of the driving component is fixedly connected to the sound insulation board sleeves which are sleeved on the outer surfaces of the water inlet end pipe and the water outlet end pipe.

[0010] Furthermore, the driving assembly includes a fixed sleeve, the inner wall of the fixed sleeve is rotatably connected to a push-turn plate, the outer surface of the sound insulation plate sleeve is fixedly connected to an upper clamping plate, and the other end of the push-turn plate is rotatably connected to the inner wall of the upper clamping plate.

[0011] Furthermore, a second sound insulation board sleeve is fixedly connected to the upper surface of the sealing plate, and a sound-absorbing cotton sleeve is fixedly connected to the outer surfaces of the water inlet end pipe and the water outlet end pipe;

[0012] A second spring is fixedly connected to the outer surface of the sound-absorbing cotton sleeve, and one end of the second spring extends to the inner wall of the second sound insulation board sleeve and is fixedly connected thereto.

[0013] Furthermore, a transverse fixing plate is fixedly connected to one side surface of the second sound insulation board sleeve, and the top of the vertical rod extends to the bottom of the transverse fixing plate and is fixedly connected thereto.

[0014] Furthermore, a rubber vibration isolation sleeve is fixedly connected to the outer surface of the pump body, and a supporting spring column is fixedly connected to the bottom of the rubber vibration isolation sleeve.

[0015] Furthermore, a support sleeve is fixedly connected to the outer surface of the fixing frame, and an elastic rubber ring is fixedly connected to the inner wall of the support sleeve.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model distributes and fixes the sound insulation board sleeves on the outside of the water flow inflow section of the water inlet end pipe and the water outlet end pipe, thereby playing a noise blocking role on the outside of the pipe wall, and respectively connects the two groups of sound insulation board sleeves with the upper sliding sleeve and the lower sliding sleeve through two groups of driving components, so that when the water flows into the water inlet end pipe and the water outlet end pipe through the circulation guide pipe and generates vibration, the vibration borne by the sound insulation board sleeve pushes the driving component to rotate and displace, thereby driving the upper sliding sleeve and the lower sliding sleeve to generate extrusion force on the buffer spring respectively, and through the cooperation with the expansion and contraction performance of the buffer spring, the upper sliding sleeve and the lower sliding sleeve are counteracted to offset part of the vibration thrust of the outside of the sound insulation board sleeve, while playing the role of sound insulation on the water inlet end pipe and the water outlet end pipe wall of the inner wall of the sound insulation board sleeve, and playing the role of external buffering and shock absorption on the outside, reducing the vibration influence on the water inlet end pipe and the water outlet end pipe when the water flow pressure is unstable.

[0018] 2. The vibration thrust generated by the water flow through the circulation guide pipe of the utility model is offset by the second spring connected between the sound-absorbing cotton sleeve and the second sound insulation board sleeve to play a buffering role, thereby reducing the vibration of the external extension of the circulation guide pipe, and the cooperation of the sound-absorbing cotton sleeve and the second sound insulation board sleeve plays a double sound-absorbing, blocking and noise-reducing role at the connection between the water inlet end pipe and the water outlet end pipe of the circulation guide pipe, thereby reducing the propagation of noise inside the pipe wall, and further playing a buffering and noise-reducing effect.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the water inlet end pipe of the utility model;

[0023] Figure 3 This is a schematic diagram of the explosion structure of the second sound insulation board sleeve of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the rubber vibration isolation sleeve of the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Pump body; 2. Motor; 3. Water wheel box; 4. Water inlet pipe; 5. Water outlet pipe; 6. Sealing plate; 7. Circulation guide pipe; 8. Sound insulation board sleeve; 9. Fixed frame; 10. Vertical pole; 11. Upper sliding sleeve; 12. Lower sliding sleeve; 13. Buffer spring; 14. Drive assembly; 140. Fixed sleeve; 141. Push plate; 142. Upper clamping plate; 15. Second sound insulation board sleeve; 16. Sound-absorbing cotton sleeve; 17. Second spring; 18. Horizontal fixing plate; 19. Rubber vibration isolation sleeve pad; 20. Support spring column; 21. Support sleeve; 22. Elastic rubber sleeve ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] See also Figure 1-Figure 4 As shown, the utility model is a sound insulation and vibration reduction circulating pump, comprising a pump body 1, one end of the pump body 1 is provided with a motor 2, the other end of the pump body 1 is fixedly installed with a water wheel box 3, the outer surface of the water wheel box 3 is respectively fixedly installed with an inlet end pipe 4 and a water outlet end pipe 5, one end of the inlet end pipe 4 and the water outlet end pipe 5 are fixedly connected with a circulation guide pipe 7 through a sealing plate 6, the outer surfaces of the inlet end pipe 4 and the water outlet end pipe 5 are sleeved with a sound insulation board sleeve 8, the bottom of the motor 2 is provided with a fixing frame 9, and the top of the fixing frame 9 is fixedly connected with a vertical pole 10;

[0030] The outer surfaces of the vertical poles 10 are respectively slidably connected with an upper sliding sleeve 11 and a lower sliding sleeve 12, a buffer spring 13 is fixedly connected between the upper sliding sleeve 11 and the lower sliding sleeve 12, and the outer surfaces of the upper sliding sleeve 11 and the lower sliding sleeve 12 are both provided with a driving component 14, one end of the driving component 14 is respectively fixedly connected to the sound insulation board sleeve 8 which is sleeved on the outer surfaces of the water inlet end pipe 4 and the water outlet end pipe 5.

[0031] When in use, the vertical rod 10 is fixed above the fixing frame 9 so that it is located on one side of the water inlet end pipe 4 and the water outlet end pipe 5, and the sound insulation board sleeves 8 are respectively sleeved on the outside of the water inlet end pipe 4 and the water outlet end pipe 5, and the two groups of sound insulation board sleeves 8 are respectively connected with the upper sliding sleeve 11 and the lower sliding sleeve 12 through the driving component 14. When the water flows into the water inlet end pipe 4 through the bottom circulation guide pipe 7 and flows to the inside of the water outlet end pipe 5, the flow pressure of the water flow causes vibration to the pipe wall at the connection between the water inlet end pipe 4 and the water outlet end pipe 5 and the circulation guide pipe 7, and the noise is generated due to the collision of water bubbles inside. The sound insulation board sleeves 8 are enclosed on the outside of the water inlet section and the water outlet section of the water inlet end pipe 4 and the water outlet end pipe 5, and the vibration of the pipe wall will bring The two groups of sound insulation board sleeves 8 outside thereof are driven to vibrate together. When the sound insulation board sleeves 8 vibrate, a lateral thrust is generated to rotate and displace the driving component 14. The rotation of one end of the driving component 14 drives the other end to rotate, and then the rotation of the other end pushes the upper sliding sleeve 11 and the lower sliding sleeve 12 to be squeezed toward the center of the buffer spring 13 on the outside of the vertical rod 10. The expansion and contraction of the buffer spring 13 generates a reverse force to counteract the lateral vibration thrust generated by the sound insulation board sleeve 8 to buffer the lateral vibration thrust. When the water flow state is relatively stable, the buffer spring 13 expands and contracts to both sides to push the upper sliding sleeve 11 and the lower sliding sleeve 12 to slide and displace toward both ends, thereby indirectly providing a buffering force on the ports of the water inlet end pipe 4 and the water outlet end pipe 5.

[0032] In the utility model, the sound insulation board sleeves 8 are distributed and fixed on the outside of the water flow inflow section of the water inlet end pipe 4 and the water outlet end pipe 5, thereby playing a noise blocking role on the outside of the pipe wall, and the two groups of sound insulation board sleeves 8 are connected to the upper sliding sleeve 11 and the lower sliding sleeve 12 respectively through two groups of driving components 14, so that when the water flows into the water inlet end pipe 4 and the water outlet end pipe 5 through the circulation guide pipe 7 and generates vibration, the vibration borne by the sound insulation board sleeve 8 pushes the driving component 14 to rotate and displace, thereby driving the upper sliding sleeve 11 and the lower sliding sleeve 12 to generate squeezing force on the buffer spring 13 respectively, and through the cooperation with the telescopic performance of the buffer spring 13, the upper sliding sleeve 11 and the lower sliding sleeve 12 are counteracted to offset part of the vibration thrust of the outside of the sound insulation board sleeve 8, and the water inlet end pipe 4 and the water outlet end pipe 5 on the inner wall of the sound insulation board sleeve 8 are soundproofed, and the outside of the water inlet end pipe 4 and the water outlet end pipe 5 are played as external buffering and shock absorbing, thereby reducing the vibration influence on the water inlet end pipe 4 and the water outlet end pipe 5 when the water flow pressure is unstable.

[0033] In one embodiment, for the above-mentioned fixed sleeve 140, the driving assembly 14 includes a fixed sleeve 140, the inner wall of the fixed sleeve 140 is rotatably connected with a push-turn plate 141, the outer surface of the sound insulation board sleeve 8 is fixedly connected with an upper clamping plate 142, and the other end of the push-turn plate 141 is rotatably connected to the inner wall of the upper clamping plate 142.

[0034] The two ends of the push-turning plate 141 are rotatably connected to the fixed sleeve 140 and the upper clamping plate 142 respectively. When the sound insulation board sleeve 8 vibrates, it drives the upper clamping plate 142 to vibrate and generate a lateral thrust, thereby pushing one end of the push-turning plate 141 on its inner wall to rotate. The rotation of one end of the push-turning plate 141 drives the other end to rotate and push the upper sliding sleeve 11 and the lower sliding sleeve 12 to slide, thereby generating an extrusion thrust on the buffer spring 13. The buffer spring 13 in the middle section of the vertical rod 10 and the upper sliding sleeve 11 and the lower sliding sleeve 12 at both ends simultaneously counteract the extrusion thrust to buffer and offset the extrusion thrust.

[0035] By connecting the upper sliding sleeve 11 and the lower sliding sleeve 12 with the sound insulation board sleeve 8 respectively through the rotatable push-turn plate 141, when the unstable flow of water passes through the water inlet end pipe 4 and the water outlet end pipe 5 to generate vibration and noise, the cooperation between the sound insulation board sleeve 8 and the push-turn plate 141 drives the upper sliding sleeve 11 and the lower sliding sleeve 12 to move and squeeze the buffer spring 13 for buffering, thereby achieving the effect of simultaneous sound insulation and shock absorption on the water inflow section of the water inlet end pipe 4 and the water outlet end pipe 5.

[0036] In one embodiment, for the second sound insulation board cover 15, the upper surface of the sealing plate 6 is fixedly connected with the second sound insulation board cover 15, and the outer surfaces of the water inlet end pipe 4 and the water outlet end pipe 5 are fixedly connected with the sound absorbing cotton cover 16;

[0037] A second spring 17 is fixedly connected to the outer surface of the sound-absorbing cotton sleeve 16 , and one end of the second spring 17 extends to the inner wall of the second sound insulation board sleeve 15 and is fixedly connected thereto.

[0038] The sealing plate 6 serves as the connection point between the water inlet end pipe 4 and the water outlet end pipe 5 and the circulation guide pipe 7 respectively. The second sound insulation board cover 15 is fixed at the connection point between the sealing plate 6 and the circulation guide pipe 7. When water flows through, vibration and noise are generated on the pipe walls of the water inlet end pipe 4 and the water outlet end pipe 5. The vibration and noise are transmitted along the circulation guide pipe 7. The sound-absorbing cotton cover 16 fits tightly to the outer wall of the circulation guide pipe 7 and is placed on the inner side of the second sound insulation board cover 15. When noise is generated inside the pipe wall, the sound-absorbing cotton cover 16 surrounds the outer wall to absorb and block the noise. At the same time, when the vibration is transmitted from the sound-absorbing cotton cover 16 to the outside of the second sound insulation board cover 15, the vibration thrust in the vibration transmission process is offset by the second spring 17 connected between the sound-absorbing cotton cover 16 and the second sound insulation board cover 15.

[0039] The vibration thrust generated by the water flow passing through the circulation guide pipe 7 is offset by the second spring 17 connected between the sound-absorbing cotton sleeve 16 and the second sound insulation board sleeve 15 to play a buffering role, thereby reducing the vibration of the external extension of the circulation guide pipe 7, and through the cooperation of the sound-absorbing cotton sleeve 16 and the second sound insulation board sleeve 15, the connection between the water inlet end pipe 4 and the water outlet end pipe 5 of the circulation guide pipe 7 has a double sound absorption, blocking and noise reduction effect, thereby reducing the propagation of noise inside the pipe wall, and further playing a buffering and noise reduction effect.

[0040] In one embodiment, for the above-mentioned transverse fixing plate 18, one side of the second sound insulation board sleeve 15 is fixedly connected with the transverse fixing plate 18, and the top of the vertical rod 10 extends to the bottom of the transverse fixing plate 18 and is fixedly connected thereto.

[0041] One end of the transverse fixing plate 18 is fixed to the outside of the second sound insulation board sleeve 15 located above the water outlet pipe 5, and the top end of the vertical rod 10 extends to the bottom of the transverse fixing plate 18 and is fixed thereto, so that the vertical rod 10 is placed between the second sound insulation board sleeve 15 fixed above and the fixing frame 9, so that the longitudinal position of the vertical rod 10 is simultaneously located on one side of the water inlet pipe 4 and the water outlet pipe 5, thereby providing the same longitudinal connection point for the upper sliding sleeve 11 and the lower sliding sleeve 12 at the same time.

[0042] In one embodiment, for the rubber vibration isolation sleeve 19 , the outer surface of the pump body 1 is fixedly connected with the rubber vibration isolation sleeve 19 , and the bottom of the rubber vibration isolation sleeve 19 is fixedly connected with a supporting spring column 20 .

[0043] The rubber vibration isolation sleeve 19 is fixed in a surrounding manner in the middle section of the pump body 1, and the bottom of the support spring column 20 extends to the surface of the fixing frame 9 and is fixedly connected thereto. Since the motor 2 will generate a certain vibration and noise propagation after starting, the support spring column 20 is connected to the middle section of the pump body 1, that is, between the bottom of the rubber vibration isolation sleeve 19 and the fixing frame 9, which can play an elastic support and buffering role and a noise blocking effect on the middle section of the pump body 1.

[0044] In one embodiment, for the above-mentioned support sleeve 21 , the outer surface of the fixing frame 9 is fixedly connected with the support sleeve 21 , and the inner wall of the support sleeve 21 is fixedly connected with an elastic rubber ring 22 .

[0045] The support sleeve 21 is located at the access port between the output end of the motor 2 and the bearing of the pump body 1. The elastic rubber ring 22 is fixed at the bearing access port and placed inside the support sleeve 21. The elastic rubber ring 22 has a certain elasticity. The support sleeve 21 and the elastic rubber ring 22 play a fixed supporting role at the connection between the output end of the motor 2 and the bearing, thereby reducing the transmission effect of vibration from the output end of the motor 2.

[0046] In summary, with the aid of the above technical solution of the utility model, when water flows through, vibration and noise are generated on the pipe walls of the water inlet end pipe 4 and the water outlet end pipe 5. After the vibration is transmitted to the outside of the sound insulation board sleeve 8, the vibration of the sound insulation board sleeve 8 drives the upper clamping plate 142 to vibrate and generate a lateral thrust, thereby pushing one end of the push plate 141 on its inner wall to rotate. The rotation of one end of the push plate 141 drives the rotation of the other end thereof to push the upper sliding sleeve 11 and the lower sliding sleeve 12 to slide and displace, thereby generating an extrusion thrust on the buffer spring 13. The buffer spring 13 is in the middle section of the vertical rod 10 and simultaneously counteracts the upper sliding sleeve 11 and the lower sliding sleeve 12 at both ends to resist the extrusion thrust. The sound insulation board sleeve 8 and the push-turn plate 141 cooperate to drive the upper sliding sleeve 11 and the lower sliding sleeve 12 to move and squeeze the buffer spring 13 for buffering, so that the water inflow section of the water inlet end pipe 4 and the water outlet end pipe 5 can be soundproofed and shock-absorbing at the same time. When the water flow passes through the water inlet end pipe 4 and the water outlet end pipe 5 to generate vibration and noise, the vibration and noise are transmitted along the circulation guide pipe 7. The sound-absorbing cotton sleeve 16 is tightly fitted to the outer wall of the circulation guide pipe 7 and is placed on the inner side of the second sound insulation board sleeve 15. When noise is generated inside the pipe wall, the sound-absorbing cotton sleeve 16 is surrounded by the outer wall to absorb and block the noise. At the same time, the vibration is transmitted by the sound-absorbing cotton sleeve 16 When it reaches the outside of the second sound insulation board sleeve 15, the second spring 17 connected between the sound-absorbing cotton sleeve 16 and the second sound insulation board sleeve 15 offsets it and plays a buffering role, thereby reducing the vibration of the external extension of the circulation guide pipe 7, and plays a double sound-absorbing, blocking and noise-reducing role at the connection between the water inlet end pipe 4 and the water outlet end pipe 5 circulation guide pipe 7, thereby reducing the propagation of noise inside the pipe wall, and further playing a buffering and noise-reducing effect. The top of the vertical rod 10 extends to the bottom of the horizontal fixing plate 18 and is fixed thereto and placed between the second sound insulation board sleeve 15 and the fixing frame 9 fixed above, so that the longitudinal position of the vertical rod 10 is simultaneously located between the water inlet end pipe 4 and the outlet end pipe One side of the water end pipe 5, thereby providing the same longitudinal connection point for the upper sliding sleeve 11 and the lower sliding sleeve 12. Since the motor 2 will generate certain vibrations and noise propagation after starting, by connecting the support spring column 20 to the middle section of the pump body 1, that is, between the bottom of the rubber vibration isolation sleeve 19 and the fixed frame 9, the middle section of the pump body 1 can be elastically supported and buffered, and the noise blocking effect can be achieved. The support sleeve 21 is located at the access port between the output end of the motor 2 and the bearing of the pump body 1. The support sleeve 21 and the elastic rubber ring 22 play a fixed supporting role at the connection between the output end of the motor 2 and the bearing, thereby reducing the transmission effect of vibration from the output end of the motor 2.

[0047] Through the above technical scheme, 1. the sound insulation board sleeves 8 are distributed and fixed on the outside of the water flow inflow section of the water inlet end pipe 4 and the water outlet end pipe 5, thereby playing a noise blocking role on the outside of the pipe wall, and the two groups of sound insulation board sleeves 8 are respectively connected to the upper sliding sleeve 11 and the lower sliding sleeve 12 through two groups of driving components 14, so that when the water flows into the water inlet end pipe 4 and the water outlet end pipe 5 through the circulation guide pipe 7 and generates vibration, the vibration borne by the sound insulation board sleeve 8 pushes the driving component 14 to rotate and displace, thereby driving the upper sliding sleeve 11 and the lower sliding sleeve 12 to generate squeezing force on the buffer spring 13 respectively, and through the cooperation with the expansion and contraction performance of the buffer spring 13, the upper sliding sleeve 11 and the lower sliding sleeve 12 are counteracted, thereby partially offsetting the vibration outside the sound insulation board sleeve 8. 1. The second sound insulation board sleeve 16 has a dynamic thrust, which can soundproof the walls of the water inlet end pipe 4 and the water outlet end pipe 5 on the inner wall of the sound insulation board sleeve 8, and at the same time play an external buffering and shock-absorbing role on the outside, thereby reducing the vibration impact on the water inlet end pipe 4 and the water outlet end pipe 5 when the water flow pressure is unstable; 2. The vibration thrust generated by the water flow through the circulation guide pipe 7 is offset by the second spring 17 connected between the sound-absorbing cotton sleeve 16 and the second sound insulation board sleeve 15 to play a buffering role, thereby reducing the vibration of the external extension of the circulation guide pipe 7, and through the cooperation of the sound-absorbing cotton sleeve 16 and the second sound insulation board sleeve 15, the connection between the water inlet end pipe 4 and the water outlet end pipe 5 of the circulation guide pipe 7 has a double sound absorption, blocking and noise reduction effect, thereby reducing the propagation of noise inside the pipe wall, and further playing a buffering and noise reduction effect.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sound-insulating and vibration-reducing circulating pump, comprising a pump body (1), characterized in that: A motor (2) is provided at one end of the pump body (1), a water wheel box (3) is fixedly installed at the other end of the pump body (1), a water inlet end pipe (4) and a water outlet end pipe (5) are respectively fixedly installed on the outer surface of the water wheel box (3), one end of each of the water inlet end pipe (4) and the water outlet end pipe (5) is fixedly connected to a circulation guide pipe (7) via a sealing plate (6), and the outer surfaces of each of the water inlet end pipe (4) and the water outlet end pipe (5) are sleeved with a sound insulation plate sleeve (8), a fixing frame (9) is provided at the bottom of the motor (2), and a vertical pole (10) is fixedly connected to the top of the fixing frame (9); The outer surfaces of the vertical pole (10) are slidably connected to an upper sliding sleeve (11) and a lower sliding sleeve (12), a buffer spring (13) is fixedly connected between the upper sliding sleeve (11) and the lower sliding sleeve (12), and the outer surfaces of the upper sliding sleeve (11) and the lower sliding sleeve (12) are both provided with a driving component (14), and one end of the driving component (14) is fixedly connected to a sound insulation board sleeve (8) sleeved on the outer surfaces of the water inlet end pipe (4) and the water outlet end pipe (5).

2. A sound-insulating and vibration-reducing circulating pump according to claim 1, characterized in that: The driving assembly (14) comprises a fixed sleeve (140), the inner wall of the fixed sleeve (140) is rotatably connected to a push-turn plate (141), the outer surface of the sound insulation plate sleeve (8) is fixedly connected to an upper clamping plate (142), and the other end of the push-turn plate (141) is rotatably connected to the inner wall of the upper clamping plate (142).

3. A sound-insulating and vibration-reducing circulating pump according to claim 1, characterized in that: The upper surface of the sealing plate (6) is fixedly connected to a second sound insulation plate sleeve (15), and the outer surfaces of the water inlet end pipe (4) and the water outlet end pipe (5) are fixedly connected to sound absorbing cotton sleeves (16); A second spring (17) is fixedly connected to the outer surface of the sound-absorbing cotton sleeve (16), and one end of the second spring (17) extends to the inner wall of the second sound insulation board sleeve (15) and is fixedly connected thereto.

4. A sound-insulating and vibration-reducing circulating pump according to claim 3, characterized in that: A transverse fixing plate (18) is fixedly connected to one side of the second sound insulation plate sleeve (15), and the top of the vertical rod (10) extends to the bottom of the transverse fixing plate (18) and is fixedly connected thereto.

5. The sound-insulating and vibration-reducing circulating pump according to claim 1, characterized in that: The outer surface of the pump body (1) is fixedly connected to a rubber vibration isolation sleeve (19), and the bottom of the rubber vibration isolation sleeve (19) is fixedly connected to a supporting spring column (20).

6. The sound-insulating and vibration-reducing circulating pump according to claim 1, characterized in that: The outer surface of the fixing frame (9) is fixedly connected to a support sleeve (21), and the inner wall of the support sleeve (21) is fixedly connected to an elastic rubber sleeve ring (22).

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