A sewage pump with noise reduction structure
By installing damping brackets and sound-absorbing layers in the sewage pump, the vibration and noise problems during operation of the sewage pump are solved, achieving a balance between noise reduction and heat dissipation, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUZHOU TIANBANG ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-31
AI Technical Summary
Sewage pumps generate noise and vibration when they are working. The vibration is transmitted to the ground, generating noise and reducing their service life.
A damping bracket is installed at the bottom of the pump body, and a sound-absorbing layer and metal plate structure are used to buffer vibration and absorb noise. Vibration and noise are reduced through the damping bracket and sound-absorbing cavity, and heat is dissipated through the metal plate.
It effectively reduces the vibration and noise of the sewage pump, extends its service life, and maintains normal heat dissipation function.
Smart Images
Figure CN224579552U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewage pump technology, and in particular to a sewage pump with a noise reduction structure. Background Technology
[0002] A sewage pump is a type of pump that integrates the pump and motor, both of which are submerged in liquid. Compared with general horizontal or vertical sewage pumps, sewage pumps have a compact structure, occupy less space, and are easy to install and maintain. Large sewage pumps are generally equipped with automatic coupling devices for automatic installation, making installation and maintenance quite convenient, and they can operate continuously for a long time.
[0003] When a sewage pump is in use, the motor inside it generates noise, and the pump also vibrates during operation. This vibration is transmitted to the ground and generates noise, reducing the service life of the sewage pump. Therefore, this application provides a sewage pump with a noise reduction structure to meet this need. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a sewage pump with a noise reduction structure to solve the problems that existing motors generate noise and sewage pumps vibrate during operation, and the vibration is transmitted to the ground, which generates noise and reduces the service life of the sewage pump.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sewage pump with a noise reduction structure, including a pump body and a top cover and an impeller sewage discharge part fixed at both ends of the pump body. The bottom end of the impeller sewage discharge part is fixed with a base, and the bottom end of the base is fixedly installed with a damping bracket. The pump body includes a pump casing and a sound insulation shell disposed on the outer wall of the pump casing. A sound insulation cavity is provided between the pump casing and the sound insulation body, and the sound insulation cavity is filled with a sound-absorbing layer.
[0006] Optionally, a drain pipe is fixedly installed on the side wall of the impeller drain section, and a support plate is welded and fixed between the impeller drain section and the base in a ring array.
[0007] Optionally, the damping bracket includes symmetrically arranged mounting plates and a damping part bonded and fixed between the two mounting plates, wherein the mounting plates are provided with through holes in a ring array.
[0008] Optionally, the outer wall of the base is integrally formed with protrusions in a ring array, and a fastening bolt is installed at the top of the protrusion, and a nut is threaded through the bottom of the fastening bolt through a through hole.
[0009] Optionally, a pull ring is fixed at the center of the top surface of the top cover, and a waterproof power supply line is installed at the top of the top cover.
[0010] Optionally, the pump body, the top cover, and the blade drain section are all integrally formed with a connecting part at their respective ends, and a connecting bolt is installed between two adjacent connecting parts.
[0011] Optionally, the connecting part is integrally formed on the outer wall of the soundproof housing, and the inner wall of the soundproof housing is welded and fixed to the pump housing.
[0012] Optionally, metal plates are welded and fixed to the outer wall of the pump casing at equal intervals, and the metal plates are in an annular structure and tightly connected to the inner wall of the soundproof casing.
[0013] Optionally, the sound-absorbing layer is arranged in a ring structure and inserted into the sound-absorbing cavity, and the sound-absorbing layer and the metal plate are staggered.
[0014] Optionally, the metal plate has multiple sound-absorbing holes, and both ends of the sound-absorbing holes are connected to the sound-absorbing cavity.
[0015] Compared with the prior art, this utility model has at least the following beneficial effects: In the above solution, a damping bracket is fixedly installed on the base at the bottom of the pump body. The damping part between the two mounting plates buffers the vibration of the sewage pump, thereby greatly reducing the noise generated by the vibration of the sewage pump transmitted to the ground and improving the service life of the sewage pump. The pump body is composed of a pump casing and a sound insulation shell. The sound-absorbing layer in the sound-absorbing cavity absorbs the noise generated by the motor. At the same time, the heat generated by the pump casing is conducted along the metal plate to the surface of the sound insulation shell for dissipation. Meanwhile, the sound-absorbing holes on the metal plate also reduce the noise of the motor. The sewage pump noise is reduced without affecting its normal heat dissipation. Attached Figure Description
[0016] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.
[0017] Figure 1 A schematic diagram of a three-dimensional structure of a sewage pump with noise reduction features; Figure 2 This is a schematic diagram of the disassembled structure of a sewage pump; Figure 3 This is a schematic diagram of the cross-sectional structure of the pump body; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.
[0018] Attached Figure
[0019] 1. Pump body; 2. Top cover; 3. Waterproof power supply cable; 4. Pull ring; 5. Sewage pipe; 6. Base; 7. Damping bracket; 8. Impeller sewage discharge section; 9. Support plate; 10. Damping section; 11. Mounting plate; 12. Through hole; 13. Protrusion; 14. Nut; 15. Fastening bolt; 16. Sound insulation shell; 17. Pump casing; 18. Connection section; 19. Sound absorption layer; 20. Metal plate; 21. Sound absorption cavity; 22. Sound absorption hole; 23. Connecting bolt.
[0020] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0021] The present invention provides a sewage pump with a noise reduction structure, which will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0022] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0023] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0024] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0025] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0026] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a sewage pump with a noise reduction structure, including a pump body 1, a top cover 2 and an impeller sewage discharge part 8 fixed at both ends of the pump body 1, a base 6 fixed at the bottom end of the impeller sewage discharge part 8, a damping bracket 7 fixedly installed at the bottom end of the base 6, the pump body 1 including a pump shell 17 and a sound insulation shell 16 disposed on the outer wall of the pump shell 17, a sound insulation cavity is provided between the pump shell 17 and the sound insulation body, and a sound-absorbing layer 19 is filled in the sound insulation cavity.
[0027] A drain pipe 5 is fixedly installed on the side wall of the impeller drain section 8, and a support plate 9 is welded and fixed to the base 6 in a ring array between the impeller drain section 8 and the base 6. Liquid is drawn into the cavity between the multiple support plates 9. The damping bracket 7 includes symmetrically arranged mounting plates 11 and a damping part 10 bonded and fixed between two mounting plates 11. Through holes 12 are opened in a ring array on the mounting plates 11. When using the damping bracket 7, the expansion bolts are first driven into the inner wall of the sludge storage tank, and the screws are passed through the through holes 12 on the bottom mounting plate 11 and threaded into the expansion bolts, so that the damping bracket 7 is fixed in the sludge storage tank. The damping part 10 between the two mounting plates 11 buffers the vibration of the sludge pump, thereby This greatly reduces the noise generated by the vibration of the sewage pump transmitted to the ground and improves the service life of the sewage pump. The outer wall of the base 6 is integrally formed in a ring array with protrusions 13. The top of the protrusions 13 is equipped with fastening bolts 15. The bottom of the fastening bolts 15 passes through the through hole 12 and is threaded with nuts 14. A pull ring 4 is fixed at the center of the top surface of the top cover 2, and a waterproof power supply line 3 is installed at the top of the top cover 2. A rope is wound around the pull ring 4 to facilitate pulling up the sewage pump. The pump body 1, the top cover 2, and the end of the blade sewage discharge part that are close to each other are integrally formed with connecting parts 18. Connecting bolts 23 are installed between two adjacent connecting parts 18. The connecting bolts 23 pass through the connecting parts 18 and are threaded with nuts 14.
[0028] like Figure 3 and Figure 4 As shown, the connecting part 18 is integrally formed on the outer wall of the soundproof housing 16. The inner wall of the soundproof housing is welded and fixed to the pump housing 17. Metal plates 20 are welded and fixed at equal intervals on the outer wall of the pump housing 17. The metal plates 20 are in a ring structure and are tightly connected to the inner wall of the soundproof housing 16. The sound-absorbing layer 19 is in a ring structure and is inserted into the sound-absorbing cavity 21. The sound-absorbing layer 19 and the metal plate 20 are staggered. The material of the sound-absorbing layer 19 includes rubber, aluminum foam, composite materials and polyurethane foam. Multiple sound-absorbing holes 22 are opened on the metal plate 20. Both ends of the sound-absorbing holes 22 are connected to the sound-absorbing cavity 21. The sound-absorbing layer 19 in the sound-absorbing cavity 21 absorbs the noise generated by the motor. At the same time, the heat generated by the pump housing 17 is conducted along the metal plate 20 to the surface of the soundproof housing 16 and dissipated. At the same time, the sound-absorbing holes 22 on the metal plate 20 also reduce the noise of the motor. While reducing the noise of the sewage pump, it does not affect its normal heat dissipation.
[0029] The working principle of the technical solution provided by this utility model is as follows: After the sewage pump is started, sewage is drawn in along the cavity between multiple support plates 9 and discharged from the sewage pipe 5. The damping part 10 between the two mounting plates 11 buffers the vibration of the sewage pump (the damping part is preferably made of rubber), thereby greatly reducing the noise generated by the vibration of the sewage pump transmitted to the ground and improving the service life of the sewage pump. The noise generated by the motor installed in the pump body 1 (the motor installed in the pump body 1 is not shown in the prior art diagram) is absorbed by the sound-absorbing layer 19 in the sound-absorbing cavity 21. At the same time, the heat generated by the pump casing 17 is conducted along the metal plate 20 to the surface of the sound insulation housing 16 and dissipated. Meanwhile, the sound-absorbing holes 22 on the metal plate 20 also reduce the noise of the motor. While reducing the noise of the sewage pump, it does not affect its normal heat dissipation.
[0030] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A sewage pump having a noise reduction structure, characterized by comprising: The pump includes a pump body and a top cover and an impeller drain section fixed at both ends of the pump body. The bottom end of the impeller drain section is fixed with a base, and the bottom end of the base is fixed with a damping bracket. The pump body includes a pump casing and a sound insulation shell disposed on the outer wall of the pump casing. A sound insulation cavity is provided between the pump casing and the sound insulation body, and the sound insulation cavity is filled with a sound-absorbing layer.
2. The sewage pump having a noise reduction structure according to claim 1, characterized by, A drain pipe is fixedly installed on the side wall of the impeller drain section, and a support plate is welded and fixed between the impeller drain section and the base in a ring array.
3. The sewage pump having a noise reduction structure according to claim 1, characterized by, The damping bracket includes symmetrically arranged mounting plates and a damping part bonded and fixed between the two mounting plates. The mounting plates have through holes arranged in a ring array.
4. The sewage pump having a noise reduction structure according to claim 3, characterized by, The outer wall of the base is integrally formed in a ring array with protrusions. A fastening bolt is installed at the top of the protrusion, and a nut is threaded through the bottom of the fastening bolt through a through hole.
5. The sewage pump having a noise reduction structure according to claim 1, characterized by, A pull ring is fixed at the center of the top surface of the top cover, and a waterproof power supply line is installed at the top of the top cover.
6. The sewage pump having a noise reduction structure according to claim 1, characterized by, The pump body, top cover, and blade sewage discharge section are all integrally formed with a connecting part at one end, and a connecting bolt is installed between two adjacent connecting parts.
7. The sewage pump having a noise reduction structure according to claim 6, characterized by, The connecting part is integrally formed on the outer wall of the soundproof shell, and the inner wall of the soundproof shell is welded and fixed to the pump shell.
8. The sewage pump having a noise reduction structure according to claim 7, characterized by, Metal plates are welded and fixed at equal intervals to the outer wall of the pump casing. The metal plates are in a ring structure and are tightly connected to the inner wall of the soundproof casing.
9. The sewage pump with a noise reduction structure according to claim 8, characterized in that, The sound-absorbing layer is in a ring structure and is inserted into the sound-absorbing cavity, and the sound-absorbing layer and the metal plate are arranged alternately.
10. The sewage pump having a noise reduction structure according to claim 9, characterized by, The metal plate has multiple sound-absorbing holes, and both ends of the sound-absorbing holes are connected to the sound-absorbing cavity.