CN216950854U

CN216950854U - Silencer for detachable and washable vacuum pump

Info

Publication number: CN216950854U
Application number: CN202123380186.2U
Authority: CN
Inventors: 赵彬彬
Original assignee: Shandong Kaine Vacuum Technology Co ltd
Current assignee: Shandong Kaine Vacuum Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-12
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a detachable and washable silencer for a vacuum pump, which relates to the technical field of silencers and comprises a flange plate, wherein the flange plate is provided with a pipe body, the left side and the right side of the inner wall of the pipe body are embedded with first springs, the first springs are provided with buffer plates, and the buffer plates are provided with sponge pads; sound insulation cotton is arranged on the outer side face of the pipe body; an auxiliary plate and a filter screen are arranged on the upper side of the tube body, a silencing tube is arranged on the upper side of the auxiliary plate, and silencing holes which are uniformly distributed are formed in the silencing tube; the flange plate is arranged at an air outlet of the vacuum pump, air enters the pipe body, the buffering effect of the buffer plate can be increased by arranging the first spring and the spongy cushion, and the silencing pipe is prevented from directly impacting the inner wall due to larger amplitude so as to avoid the damage of the silencing pipe; air enters the silencing pipe, noise is absorbed by the sound-absorbing cotton and then is discharged through the silencing hole, and the effect of reducing the noise is achieved; when in cleaning, the flange plate is detached for cleaning, which is very convenient.

Description

Can unpick and wash silencing device for formula vacuum pump

Technical Field

The utility model relates to the technical field of silencing devices, in particular to a detachable and washable silencing device for a vacuum pump.

Background

The dry screw vacuum pump is an air extractor which utilizes a pair of screws to synchronously rotate reversely at high speed in a pump shell to generate air suction and exhaust functions, is mainly applied to the fields of high-purity vacuum process, has high vacuum degree, can adapt to severe working conditions, has the capability of extracting coagulability and particle-containing gas, is commonly used in the fields of electronics, chemical engineering, biomedicine, metal processing, food processing and the like, and can generate larger noise because the high-pressure gas at one end of an exhaust port can be an exhaust pipe to generate vibration in the exhaust process, so a silencer is generally added at the exhaust port.

The problem that the noise is large exists in the exhaust port department in current dry screw vacuum pump, needs to increase silencing device, and because can have the dust in the air in the part construction place, so the muffler can install the filter screen additional when using dry screw vacuum pump, but current dry screw vacuum pump muffler filter screen all is fixed with the bolt or welds on the muffler, and it is more troublesome when dismantling the change, inconvenient maintenance.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the background art, the utility model provides a detachable and washable silencer for a vacuum pump, which has the characteristics of simple and convenient installation, good silencing effect and low noise.

In order to solve the technical problems, the utility model provides the following technical scheme: a silencer for a detachable and washable vacuum pump comprises a flange plate, wherein a pipe body is arranged on the flange plate, first springs are embedded in the left side and the right side of the inner wall of the pipe body, a buffer plate is arranged on each first spring, and a sponge pad is arranged on each buffer plate; sound insulation cotton is arranged on the outer side face of the pipe body; an auxiliary plate and a filter screen are arranged on the upper side of the tube body, a groove is formed in the left end of the inner side of the auxiliary plate, a through hole is formed in the right end of the inner side of the auxiliary plate, auxiliary blocks are arranged at the front end and the rear end of the inner side of the auxiliary plate, a slide way is arranged on each auxiliary block, and a supporting groove body is arranged on the right side of the auxiliary plate; the left end of the filter screen penetrates through the through hole and the slide way and abuts against the inner wall of the groove, a support rod matched with the support groove body is arranged on the filter screen, auxiliary grooves are formed in the upper end and the lower end of the inner part of the groove, a second spring is arranged in each auxiliary groove, a trapezoidal block is arranged on each second spring, and each trapezoidal block abuts against the filter screen; the upper side of the auxiliary plate is provided with silencing pipes, and the silencing pipes are provided with silencing holes which are uniformly distributed; the silencer is characterized in that a flow guide block is further arranged in the silencer, sound-absorbing cotton is arranged on the inner walls of the flow guide block and the silencer, and a hole body communicated with the silencing hole is formed in the sound-absorbing cotton.

Preferably, the quantity of first spring is six and evenly distributed in the inside left and right sides of body, increases the buffering effect of buffer board.

Preferably, the soundproof cotton is provided with heat dissipation holes, so that the heat dissipation effect of the pipe body is improved.

Preferably, a door body is arranged on the support groove body, the support rod can be further limited through the door body, and the filter screen is prevented from moving outwards.

Preferably, the support rod is cross-shaped, so that the stability of the filter screen is improved.

Preferably, the cross section of the silencing tube is in an inverted trapezoid shape.

Preferably, the flow guide block is positioned at the top end inside the silencing pipe and is conical in shape.

The utility model has the advantages that the flange plate is arranged at the air outlet of the vacuum pump, air enters the pipe body, the buffering effect of the buffer plate can be increased by arranging the first spring and the spongy cushion, and the silencing pipe is prevented from directly impacting the inner wall due to larger amplitude so as to avoid the damage of the silencing pipe; the sound insulation cotton is arranged outside the pipe body, so that the sound insulation effect is improved; the air is filtered by the filter screen, and the filter screen is taken out periodically and cleaned, and is convenient to install and take; air enters the silencing pipe, noise is absorbed by the sound absorption cotton and then is discharged through the silencing hole, and the effect of reducing noise is achieved; when in cleaning, the flange plate is detached for cleaning, which is very convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the structure of the auxiliary plate.

In the figure, 1, a flange plate, 2, a pipe body, 3, a first spring, 4, a buffer plate, 5, a sponge cushion, 6, soundproof cotton, 7, an auxiliary plate, 8, a filter screen, 9, a groove, 10, a through hole, 11, an auxiliary block, 12, a support groove body, 13, a support rod, 14, an auxiliary groove, 15, a second spring, 16, a silencing pipe, 17, a silencing hole, 18, a flow guide block, 19, sound absorption cotton, 20, a hole body, 21, a door body and 22 are trapezoidal blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-2, the present embodiment provides a detachable and washable silencer for vacuum pumps, which includes a flange 1, wherein the flange 1 is installed at an exhaust port when in use, and the flange 1 is detached and cleaned when in cleaning; a pipe body 2 is arranged on the flange plate 1, first springs 3 are embedded in the left side and the right side of the inner wall of the pipe body 2, a buffer plate 4 is arranged on each first spring 3, and a sponge pad 5 is arranged on each buffer plate 4; the first spring 3 and the spongy cushion 5 increase the buffering effect of the buffering plate 4, and the embedded arrangement of the first spring 3 can reduce the use space of the first spring 3; the sound insulation cotton 6 is arranged on the outer side surface of the pipe body 2, so that the sound insulation effect is improved; an auxiliary plate 7 and a filter screen 8 are arranged on the upper side of the tube body 2, a groove 9 is formed in the left end of the inner side of the auxiliary plate 7, a through hole 10 is formed in the right end of the inner side of the auxiliary plate 7, auxiliary blocks 11 are arranged at the front end and the rear end of the inner side of the auxiliary plate 7, a slide way is arranged on each auxiliary block 11, and a supporting groove body 12 is arranged on the right side of the auxiliary plate 7; the left end of the filter screen 8 penetrates through the through hole 10 and the slide way and abuts against the inner wall of the groove 9, a support rod 13 matched with the support groove body 12 for use is arranged on the filter screen 8, auxiliary grooves 14 are formed in the upper end and the lower end of the inner portion of the groove 9, a second spring 15 is arranged in each auxiliary groove 14, a trapezoidal block 22 is arranged on each second spring 15, each trapezoidal block 22 abuts against the filter screen 8, the second spring 15 improves the stability of the filter screen 8, and damage to the filter screen 8 due to overlarge impact force is avoided; the upper side of the auxiliary plate 7 is provided with a silencing pipe 16, and the silencing pipe 16 is provided with silencing holes 17 which are uniformly distributed; the noise reduction pipe is characterized in that a flow guide block 18 is further arranged inside the noise reduction pipe 16, sound absorption cotton 19 is arranged on the inner walls of the flow guide block 18 and the noise reduction pipe 16, a hole body 20 communicated with the noise reduction hole 17 is arranged on the sound absorption cotton 19, and air enters the noise reduction pipe 16 and then is absorbed through the sound absorption cotton 19 and discharged through the noise reduction hole 17.

The number of the first springs 3 is six, and the first springs are uniformly distributed on the left side and the right side inside the pipe body 2, so that the buffering effect of the buffering plate 4 is improved; the soundproof cotton 6 is provided with heat dissipation holes to increase the heat dissipation effect of the pipe body 2; the support tank body 12 is provided with a door body 21, and the support rod 13 can be further limited by the door body 21, so that the filter screen 8 is prevented from moving outwards; the supporting rod 13 is in a cross shape, so that the stability of the filter screen 8 is improved; the cross section of the silencing pipe 16 is in an inverted trapezoid shape; the flow guide block 18 is positioned at the top end inside the silencing pipe 16 and is conical in shape.

When the vacuum pump is used, the flange plate 1 is arranged at the air outlet of the vacuum pump, air enters the pipe body 2, the buffer plate 4 is used for buffering, and the sound insulation cotton 6 is arranged outside the pipe body 2, so that the sound insulation effect is improved; the air enters the silencing pipe 16 after being filtered by the filter screen 8, and is discharged through the silencing hole 17 after the noise is absorbed by the sound absorption cotton 19, so that the effect of reducing the noise is achieved.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; while the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes, modifications, additions and substitutions may be made without departing from the spirit of the utility model and the scope of the utility model as defined in the accompanying claims.

Claims

1. A silencer for a detachable and washable vacuum pump comprises a flange plate (1), wherein a pipe body (2) is arranged on the flange plate (1), and is characterized in that first springs (3) are embedded in the left side and the right side of the inner wall of the pipe body (2), buffer plates (4) are arranged on the first springs (3), and sponge pads (5) are arranged on the buffer plates (4); sound insulation cotton (6) is arranged on the outer side surface of the pipe body (2); an auxiliary plate (7) and a filter screen (8) are arranged on the upper side of the tube body (2), a groove (9) is formed in the left end of the inner side of the auxiliary plate (7), a through hole (10) is formed in the right end of the inner side of the auxiliary plate (7), auxiliary blocks (11) are arranged at the front end and the rear end of the inner side of the auxiliary plate (7), a slide way is arranged on each auxiliary block (11), and a supporting groove body (12) is arranged on the right side of the auxiliary plate (7); the left end of the filter screen (8) penetrates through the through hole (10) and the slide way and abuts against the inner wall of the groove (9), a supporting rod (13) matched with the supporting groove body (12) for use is arranged on the filter screen (8), auxiliary grooves (14) are formed in the upper end and the lower end of the interior of the groove (9), a second spring (15) is arranged in each auxiliary groove (14), a trapezoidal block (22) is arranged on each second spring (15), and the trapezoidal blocks (22) abut against the filter screen (8); the upper side of the auxiliary plate (7) is provided with a silencing pipe (16), and the silencing pipe (16) is provided with silencing holes (17) which are uniformly distributed; a flow guide block (18) is also arranged in the silencing pipe (16); the inner walls of the flow guide block (18) and the silencing pipe (16) are provided with sound absorbing cotton (19), and the sound absorbing cotton (19) is provided with a hole body (20) communicated with the silencing hole (17).

2. The silencer assembly for a detachable and washable vacuum pump according to claim 1, wherein the number of the first springs (3) is six and the first springs are uniformly distributed on the left and right sides inside the pipe body (2).

3. The silencer device for the detachable and washable vacuum pump according to claim 1, wherein the soundproof cotton (6) is provided with heat dissipation holes.

4. The noise reduction device for the removable and washable vacuum pump according to claim 1, characterized in that a door body (21) is arranged on the support tank body (12).

5. Silencing device for a removable and washable vacuum pump according to claim 1, characterized in that said support bar (13) is cross-shaped.

6. The acoustic muffler device for a removable and washable vacuum pump according to claim 1, wherein the cross-section of the muffler pipe (16) is an inverted trapezoid.

7. The acoustic muffler device for a removable and washable vacuum pump according to claim 1, wherein the baffle block (18) is located at the top end inside the muffler pipe (16) and is conical in shape.