Noise reduction mechanism of water ring vacuum pump

Abstract

The water ring vacuum pump noise reduction mechanism comprises a noise reduction box body and a supporting bottom plate, a second rotating connecting piece is installed on the inner side face of the noise reduction box body in an embedded mode, and elastic supporting sound insulation cotton is installed at the position, located at the inner bottom of the noise reduction box body, of the top end of the supporting bottom plate in an embedded mode. A sound insulation rubber sleeve is connected to the position, located in the noise reduction box body, of the outer side of the second rotating connecting piece, a connecting top plate is connected to the bottom side face of the top of the sound insulation rubber sleeve, multiple sets of supporting column pieces are evenly arranged at the bottom of the connecting top plate, and telescopic column pieces are slidably connected to the inner bottoms of the multiple sets of supporting column pieces; the beneficial effects of the utility model are that through the telescopic multi-directional adjustable elastic extrusion support structure and the integrated heat conduction vibration compression ventilation heat dissipation structure, the overall use stability is enhanced, the vibration noise is reduced, the noise reduction effect is improved, and the heat dissipation effect is improved; and the overall use effect is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction of vacuum pumps, in particular to a noise reduction mechanism for a water ring vacuum pump. Background Technique

[0002] A water ring vacuum pump is equipped with an eccentric rotor with fixed blades, which throws water towards the stator wall. The water forms a liquid ring concentric with the stator. The liquid ring and the rotor blades together form a rotary variable volume vacuum pump with a variable volume. Therefore, during operation, various internal components are very likely to generate high noise, affecting the surrounding environment. In order to reduce noise, a special noise reduction mechanism is required for noise reduction treatment.

[0003] Most of the existing noise reduction of water ring vacuum pumps is to directly put on a sound insulation cover outside or at the position where noise is generated and install various sound insulation cotton inside for direct sound insulation. However, the installed components are prone to vibrate due to the operation of the water ring vacuum pump and collide with the water ring vacuum pump to generate new noise. The overall noise reduction effect is low, and the direct covering makes it difficult for the heat generated by the operation of the water ring vacuum pump to dissipate, which instead affects the use of the water ring vacuum pump and reduces the use effect.

[0004] Therefore, we propose a noise reduction mechanism for a water ring vacuum pump to solve the above problems. Content of the Utility Model

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by the utility model is as follows:

[0007] A noise reduction mechanism for a water ring vacuum pump includes a noise reduction box body and a support bottom plate. A second rotating connector is embedded and installed on the inner side surface of the noise reduction box body. An elastic support sound insulation cotton is embedded and installed at the top end of the support bottom plate at the inner bottom of the noise reduction box body. A sound insulation rubber sleeve is connected inside the noise reduction box body on the outer side of the second rotating connector. A connecting top plate is connected to the top and bottom sides of the sound insulation rubber sleeve. A plurality of groups of support column members are evenly arranged at the bottom of the connecting top plate. The inner bottom of each of the plurality of groups of support column members is slidably connected with a telescopic column member. A compression spring is sleeved on the outer side of the telescopic column member. The bottom of the telescopic column member is connected with a suction cup. A first rotating connector and a second rotating connector that are rotatably installed with each other are installed near the bottom of the connecting top plate at the top of the plurality of groups of support column members. A metal contact block is embedded and installed in the middle of the suction cup. A plurality of groups of compressed air pipes are evenly installed inside the connecting top plate.

[0008] The utility model can be further configured in a preferred example as follows:

[0009] By adopting the above technical solution, an installation base plate is connected to the top end of the outer bottom side of the noise reduction box body, and the top end of the metal abutting block is connected to the bottom end of the telescopic column member.

[0010] In a preferred example, the present utility model can be further configured as:

[0011] By adopting the above technical solution, the top end of the second rotating connecting member is connected to the bottom end of the connecting top plate, and the top end of the support column member is rotatably connected to the inner bottom side of the first rotating connecting member.

[0012] In a preferred example, the present utility model can be further configured as:

[0013] By adopting the above technical solution, T-shaped support members are installed at the bottoms of multiple groups of the compressed air pipes, a plurality of ventilation holes are uniformly formed at the connection between the top ends of the noise reduction box body and the sound insulation cotton sleeve, and communication holes are formed through at the connections between the compressed air pipes, the sound insulation rubber sleeve and the T-shaped support members.

[0014] In a preferred example, the present utility model can be further configured as:

[0015] By adopting the above technical solution, the multiple groups of ventilation holes are interconnected with the compressed air pipes and the sound insulation rubber sleeve through the communication holes.

[0016] In a preferred example, the present utility model can be further configured as:

[0017] By adopting the above technical solution, a plurality of heat conducting sheets are connected and extended inside the sound insulation rubber sleeve at the top end of the connecting top plate.

[0018] In a preferred example, the present utility model can be further configured as:

[0019] By adopting the above technical solution, an air pipe extrusion sealing sleeve is annularly embedded and installed at the upper right of the top end of the noise reduction box body, and an elastic support member is embedded and installed at one end of the air pipe extrusion sealing sleeve inside the top of the noise reduction box body.

[0020] By adopting the above technical solution, the beneficial effects obtained by the present utility model are as follows:

[0021] 1. In the present utility model, by providing the sound insulation rubber sleeve, the support column member, the extrusion spring, the connecting top plate and the suction cup, during use, through the rotational connection of the first rotating connecting member and the second rotating connecting member, the support column member can swing in multiple directions. Through the elastic extrusion support and adsorption effects of the telescopic column member, the extrusion spring and the suction cup, the water ring vacuum pump body inside the noise reduction box body is elastically abutted and extruded. At the same time, each component has a reaction to extrude the connecting top plate and extrude the sound insulation rubber sleeve, further slowing down the impact force of the vibration force, enhancing the overall stability, reducing the vibration acting force, reducing the noise and improving the noise reduction effect.

[0022] 2. In the present utility model, by providing a metal abutting block, a heat conducting sheet, a compressed air pipe, a T-shaped support member, a ventilation hole and a communication hole, during use, when the supporting column member causes the connecting top plate to be stressed and squeeze the sound insulation rubber sleeve due to the vibration force, the T-shaped support member also squeezes the compressed air pipe. Through the action of the metal abutting block and the above-mentioned various metal elastic support components, the heat of the water ring vacuum pump is conducted to the heat conducting sheet. In this way, the compressed air pipe continuously compresses and discharges the heat of the sound insulation rubber sleeve to the outside through the communication hole and the ventilation hole for cooling, which not only does not affect the sound insulation effect, but also improves the heat dissipation effect and the use effect of the noise reduction mechanism. Description of the Drawings

[0023] Figure 1 It is a front view structural schematic diagram of an embodiment of the present utility model;

[0024] Figure 2 It is a front view sectional structural schematic diagram of an embodiment of the present utility model;

[0025] Figure 3 It is a partial structural schematic diagram of the supporting column member of an embodiment of the present utility model;

[0026] Figure 4 It is a structural schematic diagram of part A of an embodiment of the present utility model.

[0027] Reference Signs:

[0028] 1, noise reduction box body; 2, installation bottom plate; 3, support bottom plate; 4, air pipe extrusion sealing sleeve; 5, elastic support sound insulation cotton; 6, sound insulation rubber sleeve; 7, supporting column member; 8, extrusion spring; 9, telescopic column member; 10, suction cup; 11, metal abutting block; 12, first rotating connecting member; 13, second rotating connecting member; 14, connecting top plate; 15, heat conducting sheet; 16, ventilation hole; 17, compressed air pipe; 18, sound insulation cotton sleeve; 19, T-shaped support member; 20, communication hole; 21, elastic support member. Detailed Embodiments

[0029] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0030] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present utility model.

[0031] The following describes a noise reduction mechanism for a water ring vacuum pump provided by some embodiments of the present utility model with reference to the accompanying drawings.

[0032] Embodiment 1:

[0033] Combined with Figures 1-4 As shown, a noise reduction mechanism for a water ring vacuum pump provided by the utility model

[0034] Specifically, it includes a noise reduction box body 1 and a support bottom plate 3. A second rotating connector 13 is embedded and installed on the inner side of the noise reduction box body 1. An elastic support sound insulation cotton 5 is embedded and installed at the top end of the support bottom plate 3 at the inner bottom of the noise reduction box body 1. A sound insulation rubber sleeve 6 is connected inside the noise reduction box body 1 on the outside of the second rotating connector 13. A connecting top plate 14 is connected and installed on the top and bottom sides of the sound insulation rubber sleeve 6. A plurality of groups of support column members 7 are evenly arranged at the bottom of the connecting top plate 14. A telescopic column member 9 is slidably connected to the inner bottom of each of the plurality of groups of support column members 7. A compression spring 8 is sleeved on the outside of the telescopic column member 9. The bottom of the telescopic column member 9 is connected with a suction cup 10. A first rotating connector 12 and a second rotating connector 13 which are rotatably installed with each other are installed near the bottom of the connecting top plate 14 at the top of the plurality of groups of support column members 7. A metal abutting block 11 is embedded and installed in the middle of the suction cup 10. A plurality of groups of compressed air pipes 17 are evenly installed inside the connecting top plate 14. An installation bottom plate 2 is connected to the top end of the support bottom plate 3 on the outer bottom side of the noise reduction box body 1. The top end of the metal abutting block 11 is connected with the bottom end of the telescopic column member 9. The top end of the second rotating connector 13 is connected with the bottom end of the connecting top plate 14. The top end of the support column member 7 is rotatably connected to the inner bottom side of the first rotating connector 12. When the suction cup 10 abuts against the surface of the water ring vacuum pump, through the rotational connection of the first rotating connector 12 and the second rotating connector 13, the support column member 7 can elastically abut and extrude the outer surface of the water ring vacuum pump body from multiple angles through the elastic extrusion and support adsorption of the telescopic column member 9 and the outer compression spring 8. At the same time, the connecting top plate 14 is extruded to squeeze the sound insulation rubber sleeve 6, which also slows down the vibration force, enhances the overall stability, reduces noise and improves the noise reduction effect.

[0035] Embodiment 2:

[0036] Combined with Figures 2-4 As shown, on the basis of Embodiment 1

[0037] Specifically, T-shaped supports 19 are installed at the bottoms of multiple groups of compressed air pipes 17. Multiple ventilation holes 16 are evenly formed at the connection between the top ends of the noise reduction box 1 and the sound insulation cotton sleeve 18. Communication holes 20 are formed through the connections between the compressed air pipes 17, the sound insulation rubber sleeves 6, and the T-shaped supports 19. The multiple ventilation holes 16 are interconnected with the compressed air pipes 17 and the sound insulation rubber sleeves 6 through the communication holes 20. At the top end of the connection top plate 14, multiple heat conduction sheets 15 are connected and extended inside the sound insulation rubber sleeve 6. The use of the above components and the components in the first embodiment enables the connection top plate 14 to squeeze the sound insulation rubber sleeve 6, squeeze the compressed air pipes 17 through the T-shaped supports 19, and at the same time conduct heat to the heat conduction sheets 15 through the metal contact blocks 11 and various metal elastic support components, so that the compressed air pipes 17 are compressed, and the heat is discharged to the outside through the communication holes 20 and the ventilation holes 16 for cooling, improving the heat dissipation effect and the use effect.

[0038] Combined Figures 1-2 As shown, in the above embodiment,

[0039] Specifically, an air pipe extrusion sealing sleeve 4 is annularly embedded and installed at the upper right of the top end of the noise reduction box 1. One end of the air pipe extrusion sealing sleeve 4 is embedded and installed with an elastic support 21 inside the top of the noise reduction box 1. The elastic support 21 makes the air pipe extrusion sealing sleeve 4 have a certain adjustability, facilitating the extrusion installation of the air pipes on water ring vacuum pumps of different sizes and improving the overall use diversity of the noise reduction mechanism.

[0040] Working principle and usage process of the present utility model: First, during use, the noise reduction box body 1 is connected and installed to the support bottom plate 3 through the installation bottom plate 2, and the water ring vacuum pump is covered therein. At the same time, the ventilation pipe extended by the water ring vacuum pump is extrusion-installed and sleeved through the ventilation pipe extrusion sealing sleeve 4 and the elastic support member 21, so that the suction cup 10 abuts against the surface of the water ring vacuum pump. During operation, through the rotational connection of the first rotational connection member 12 and the second rotational connection member 13, the support column member 7 can swing in multiple directions. Through the elastic extrusion and support adsorption action of the telescopic column member 9, the outer extrusion spring 8 and the suction cup 11, the water ring vacuum pump body inside the noise reduction box body 1 is elastically abutted and extruded. At the same time, each component reacts and extrudes the connection top plate 14 to extrude the sound insulation rubber sleeve 6, further slowing down the impact force of the vibration, enhancing the overall stability, reducing the vibration acting force, reducing noise and improving the noise reduction effect. Secondly, during use, the operation of the above components, especially the support column member 7, causes the connection top plate 14 to be stressed and extrude the sound insulation rubber sleeve 6 due to the vibration acting force, and the compression air pipe 17 is extruded through the T-shaped support member 19. Moreover, the metal abutting block 11 in the middle of the suction cup 10 conducts the heat of the water ring vacuum pump to the heat conduction sheet 15 through the conduction of the above metal elastic support components. In this way, the compression air pipe 17 continuously compresses and discharges the heat in the sound insulation rubber sleeve 6 to the outside through the communication hole 20 and the ventilation hole 16 for cooling, which not only does not affect the sound insulation effect but also improves the heat dissipation effect and the usage effect of the noise reduction mechanism.

[0041] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A noise reduction mechanism for a water ring vacuum pump, comprising a noise reduction box body (1) and a support bottom plate (3). A second rotating connecting piece (13) is embedded and installed on the inner side surface of the noise reduction box body (1). An elastic support sound insulation cotton (5) is embedded and installed at the top end of the support bottom plate (3) and located at the inner bottom of the noise reduction box body (1). It is characterized in that, On the outer side of the second rotating connecting member (13) inside the noise reduction box body (1), a sound insulation rubber sleeve (6) is connected. On the top and bottom sides of the sound insulation rubber sleeve (6), a connecting top plate (14) is connected and installed. On the bottom of the connecting top plate (14), a plurality of groups of support column members (7) are evenly arranged. At the inner bottom of each group of the support column members (7), a telescopic column member (9) is slidably connected. An extrusion spring (8) is sleeved on the outer side of the telescopic column member (9). The bottom of the telescopic column member (9) is connected with a suction cup (10). At the top of each group of the support column members (7) near the bottom of the connecting top plate (14), a first rotating connecting member (12) and a second rotating connecting member (13) which are rotatably installed with each other are installed. A metal abutting block (11) is embedded and installed in the middle of the suction cup (10). Inside the connecting top plate (14), a plurality of groups of compressed air pipes (17) are evenly installed.

2. The noise reduction mechanism of a water ring vacuum pump according to claim 1, characterized in that, On the top end of the support bottom plate (3) at the outer bottom side of the noise reduction box body (1), an installation bottom plate (2) is connected. The top end of the metal abutting block (11) is connected with the bottom end of the telescopic column member (9).

3. The noise reduction mechanism of a water ring vacuum pump according to claim 1, characterized in that, The top end of the second rotating connecting member (13) is connected with the bottom end of the connecting top plate (14). The top end of the support column member (7) is rotatably connected to the inner bottom side of the first rotating connecting member (12).

4. A noise reduction mechanism for a water ring vacuum pump according to claim 1, characterized in that, At the bottom of each group of the compressed air pipes (17), a T-shaped support member (19) is installed. At the joint of the top ends of the noise reduction box body (1) and the sound insulation cotton sleeve (18), a plurality of groups of ventilation holes (16) are evenly opened. At the joints of the compressed air pipes (17), the sound insulation rubber sleeve (6) and the T-shaped support member (19), communication holes (20) are all penetrated and opened.

5. The noise reduction mechanism of a water ring vacuum pump according to claim 4, characterized in that, Each group of the ventilation holes (16) is communicated with the compressed air pipes (17) and the sound insulation rubber sleeve (6) through the communication holes (20).

6. The noise reduction mechanism of a water ring vacuum pump according to claim 1, characterized in that At the top end of the connecting top plate (14) inside the sound insulation rubber sleeve (6), a plurality of heat conducting sheets (15) are extended and connected.

7. The noise reduction mechanism of a water ring vacuum pump according to claim 1, characterized in that, On the upper right side of the top end of the noise reduction box body (1), a ventilation pipe extrusion sealing sleeve (4) is annularly embedded and installed. One end of the ventilation pipe extrusion sealing sleeve (4) is embedded and installed with an elastic support member (21) inside the top of the noise reduction box body (1).

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