CN218407959U

CN218407959U - Box type vacuum generator

Info

Publication number: CN218407959U
Application number: CN202222447345.4U
Authority: CN
Inventors: 林南翔; 林亦琦; 林南怀
Original assignee: Wenzhou Jinye Pneumatic Technology Co ltd
Current assignee: Wenzhou Jinye Pneumatic Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-31
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a box-shaped vacuum generator relates to vacuum generator technical field, and it includes casing and lower casing, the side of going up the casing is equipped with first joint spare and second joint spare, the inside of going up the casing is equipped with the tee air pipe of T shape, air pipe is equipped with the air inlet that is close to first joint spare, is close to the negative pressure mouth and the first exhaust port of second joint spare, the side of going up the casing is equipped with the second gas vent that supplies compressed air exhaust, the side lid of first gas vent is equipped with spherical exhaust hood, exhaust hood's surface is equipped with a plurality of exhaust holes of evenly distributed, first exhaust port leans on outer terminal surface to be the exhaust chamber, the internal surface in exhaust chamber is equipped with the sound absorbing pad. The vacuum generator of the application has better noise reduction performance.

Description

Box type vacuum generator

Technical Field

The application relates to the technical field of vacuum generators, in particular to a box-shaped vacuum generator.

Background

The vacuum generator is a novel, efficient, clean, economic and small vacuum component which utilizes a positive pressure air source to generate negative pressure, so that the negative pressure can be obtained easily and conveniently in a place with compressed air or in a place needing the positive and negative pressure in a pneumatic system.

In the correlation technique, vacuum generator includes the casing, the casing be equipped with the air duct, the air duct includes air inlet, negative pressure chamber and gas vent, gets into from the air inlet, utilizes the spray tube high-speed jet compressed air that sprays, forms the efflux at the spray tube export, produces the entrainment and flows, under the entrainment effect for the air around the negative pressure chamber is constantly taken out, makes the pressure in the negative pressure chamber drop to below the atmospheric pressure, forms certain vacuum degree then compressed gas discharges from the gas vent.

In above-mentioned correlation technique, the atmospheric pressure produces stronger noise when vacuum generator exhaust high-pressure gas, receives noise interference back to the ear nerve when the staff for a long time and causes certain damage, is unfavorable for in-service use.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is to provide a box type vacuum generator, solves the above-mentioned situation of the too big noise of vacuum generator among the relevant art.

The application provides a box-type vacuum generator adopts following technical scheme:

the utility model provides a box-shaped vacuum generator, includes casing and lower casing, the side of going up the casing is equipped with first joint spare and second joint spare, the inside of going up the casing is equipped with T shape three-way air pipe, air pipe is equipped with the air inlet that is close to first joint spare, negative pressure mouth and the first gas vent that is close to second joint spare, the side of going up the casing is equipped with the second gas vent that supplies compressed air exhaust, the side lid of first gas vent is equipped with spherical exhaust hood, the surface of exhaust hood is equipped with a plurality of exhaust holes of evenly distributed, first gas vent leans on outer terminal surface to be the exhaust chamber, the internal surface in exhaust chamber is equipped with the sound absorbing pad.

By adopting the technical scheme, be provided with spherical exhaust hood in the side of first exhaust port, and the surface of exhaust hood is provided with a plurality of exhaust holes of evenly distributed, the last evenly distributed exhaust hole of exhaust hood is with the even reposition of redundant personnel of compressed gas, reduce the impact of compressed air to casing inside down, the side that the gas vent leans on the outside is equipped with the exhaust chamber, be provided with the sound absorption pad that is used for the noise absorption simultaneously at the internal surface in exhaust chamber, the noise that compressed air produced when spouting from first exhaust port, absorb the noise through the sound absorption pad, improve vacuum generator's the performance of making an uproar of falling.

Optionally, the exhaust hood is provided with a first sound absorbing cotton for absorbing noise.

Through adopting above-mentioned technical scheme, be provided with first sound cotton of inhaling in the inside of exhaust hood, inhale the dual sound of inhaling of sound pad and fall and make an uproar through first sound cotton of inhaling, further reduce the noise that compressed air produced when discharging from first exhaust port, further strengthen the holistic ability of falling of inhaling of vacuum generator.

Optionally, the upper casing is equipped with the protecting crust near second exhaust port department, the side that the protecting crust is close to the upper casing is equipped with the second and inhales the sound cotton, the surface of protecting crust is equipped with a plurality of air vents of evenly distributed.

Through adopting above-mentioned technical scheme, compressed gas gets into the exhaust chamber after the discharge of first gas vent, and after the sound is inhaled to the cotton falling of noise absorption pad and first sound absorption, compressed gas discharges to the vacuum generator outside from the second gas vent, then inhales the cotton noise reduction of sound through the second once more, and noise reduction is to staff's influence, noise reduction's decibel improves vacuum generator's the performance of making an uproar that inhales.

Optionally, the side of protective housing is equipped with a plurality of fixture blocks, the upper surface of going up the casing is equipped with and supplies fixture block male card hole.

Through adopting above-mentioned technical scheme, be provided with a plurality of fixture blocks in the side of protecting crust, the upper surface of going up the casing is equipped with and supplies fixture block male card hole. The matching design of the clamping blocks and the clamping holes is beneficial to the mounting or dismounting of the protective shell and the upper shell, the corresponding assembling time is saved, and the assembling efficiency of the protective shell is improved.

Optionally, a plurality of the fixture blocks are uniformly distributed on the side surface of the protective shell close to the upper shell.

Through adopting above-mentioned technical scheme, a plurality of fixture blocks of evenly distributed and the cooperation in card hole prevent that vacuum generator from at the during operation, and the protecting crust separates with last casing, improves the stability of protecting crust and last casing installation.

Optionally, all be equipped with a plurality of lugs on the surface of first joint spare and second joint spare, the inside of going up casing and lower casing is equipped with and supplies the lug to insert and gliding L shape spout.

Through adopting above-mentioned technical scheme, all be provided with a plurality of lugs around axis evenly distributed on the surface of first joint piece and second joint piece, the lug cooperates with the joint of L shape spout, and the installation between the first joint piece of being convenient for and the intake pipe, between second joint piece and the negative pressure pipe improves the installation effectiveness of first joint piece and second joint piece.

Optionally, the side that first joint spare is close to last casing is equipped with first sealed the pad, the side that second joint spare is close to last casing is equipped with the sealed pad of second.

Through adopting above-mentioned technical scheme, the side that first joint spare is close to the shell is provided with first sealed the pad, and the side that second joint spare is close to the shell is provided with the sealed pad of second. After the first clamping piece and the second clamping piece are installed, two side faces of the first sealing gasket are abutted against the first clamping piece and the upper shell, and two side faces of the second sealing gasket are abutted against the second clamping piece and the upper shell; the first gasket and the second gasket enhance the stability of the internal vent line installation during operation of the vacuum generator.

Optionally, the diameters of the first sealing gasket and the second sealing gasket decrease progressively along a direction approaching the upper shell or the lower shell.

Through adopting above-mentioned technical scheme, the diameter of first sealed pad and the sealed pad of second is steadilyd decrease along the direction of being close to last casing or casing down, and the better installation clearance of filling first joint spare, second joint spare and last casing further strengthens vacuum generator during operation, inside vent pipe's stability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the setting of exhaust hood, sound absorption pad and the first cotton of inhaling sound, the first cotton and the dual sound of inhaling of sound pad are inhaled and are fallen and make an uproar, reduce the noise that compressed air produced when discharging from first exhaust port, further strengthen the holistic sound absorption of vacuum generator and fall the ability of making an uproar.

2. Inhale the cotton setting of sound through protecting crust bottom side second, compressed gas discharges to the vacuum generator outside from the second gas vent, then again through the second inhale the sound cotton and fall the noise, the noise reduction is to staff's influence, noise abatement's decibel, improves vacuum generator's the performance of making an uproar of inhaling.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic illustration of an explosive structure according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an explosive structure embodying the protective shell structure of the embodiments of the present application;

FIG. 4 is a schematic cross-sectional structural view of an embodiment of the present application;

fig. 5 is an enlarged schematic view of a portion a in fig. 4.

In the figure, 1, an upper shell; 11. a second exhaust port; 12. clamping holes; 2. a lower housing; 3. a first clip member; 31. a first gasket; 32. a bump; 4. a second clip member; 41. a second gasket; 5. an air duct; 51. an air inlet pipe; 511. an air inlet; 512. a chute; 52. a negative pressure tube; 521. a negative pressure port; 53. an exhaust pipe; 531. a first exhaust port; 532. an exhaust chamber; 533. a sound absorbing pad; 6. an exhaust hood; 61. a first sound absorbing cotton; 62. an exhaust hole; 7. a protective shell; 71. a vent hole; 72. the second sound-absorbing cotton; 73. and (7) clamping blocks.

Detailed Description

The present application will now be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, a box type vacuum generator includes an upper case 1 and a lower case 2, and a first engaging member 3 and a second engaging member 4 are provided at a side of the upper case 1.

Referring to fig. 2, be equipped with T shape tee bend air duct 5 between upper housing 1 and lower housing 2, air duct 5 includes intake pipe 51, negative pressure pipe 52 and blast pipe 53, intake pipe 51 and the coaxial setting of blast pipe 53, the tip of intake pipe 51 is provided with the air inlet 511 that is close to first joint spare 3, negative pressure port 521 that is close to second joint spare 4 is seted up to the tip of negative pressure pipe 52, first joint spare 3 is connected with the spray tube, negative pressure port 521 passes through second joint spare 4 and is connected with vacuum suction nozzle, the terminal surface of blast pipe 53 is equipped with first exhaust port 531, the outside of first exhaust port 531 is exhaust chamber 532, the upper surface of upper housing 1 is provided with the second gas vent 11 that supplies compressed air to exhaust.

Referring to fig. 2, a spherical exhaust hood 6 is disposed on a side surface of the first exhaust port 531, the exhaust hood 6 is in interference fit with an end portion of the exhaust pipe 53, first sound-absorbing cotton 61 is disposed inside the exhaust hood 6, exhaust holes 62 uniformly distributed around a center of a sphere are disposed on an outer surface of the exhaust hood 6, and sound-absorbing pads 533 are uniformly disposed on an inner side surface of the exhaust cavity 532. When the compressed gas is discharged from the first discharge port 531, the discharge holes 62 uniformly provided on the discharge cover 6 uniformly disperse the gas, and then the sound absorption pad 533 absorbs the generated noise.

Referring to fig. 3, a protective shell 7 is arranged at a position, close to the second exhaust port 11, of the upper shell 1, a plurality of vent holes 71 are uniformly distributed in the protective shell 7, and second sound-absorbing cotton 72 is arranged on a side face, close to the upper shell 1, of the protective shell 7, so that noise generated when compressed air is exhausted is further reduced, and the noise-proof performance of the vacuum generator is enhanced.

Referring to fig. 3, a plurality of clamping blocks 73 are arranged on the side surface of the protective shell 7 close to the upper shell 1, and the upper shell 1 is provided with clamping holes 12 for the clamping blocks 73 to be inserted, so that the protective shell 7 and the upper shell 1 can be detached and installed conveniently. A plurality of fixture blocks 73 are evenly distributed on the side surface, close to the upper shell 1, of the protective shell 7, and through the cooperation with the clamp holes 12, the protective shell 7 is prevented from being separated from the upper shell 1 when the vacuum generator works, and the installation stability of the protective shell 7 and the upper shell 1 is improved.

Referring to fig. 2, fig. 4, the surface of first joint spare 3 and second joint spare 4 all is provided with two lugs 32 relatively, the inside of going up casing 1 and casing 2 is provided with supplies lug 32 to insert and gliding L type spout 512, when first joint spare 3 and second joint spare 4 installation, lug 32 removes along the axis direction of L type spout 512 earlier, lug 32 supports the back with the department of buckling of L type spout 512, along spout 512 and around axis direction removal again, be convenient for first joint spare 3 and second joint spare 4's installation, improve the installation effectiveness of first joint piece and second joint piece.

Referring to fig. 2, the side of the first clamping member 3 close to the upper casing 1 is provided with a first sealing gasket 31, the side of the second clamping member 4 close to the upper casing 1 is provided with a second sealing gasket 41, after the first clamping member 3 and the second clamping member 4 are installed, the two side faces of the first sealing gasket 31 are abutted against the first clamping member 3 and the lower casing 2, and the two side faces of the second sealing gasket 41 are abutted against the second clamping member 4 and the upper casing 1. Through the setting of the first sealed pad 31 of filling up and the sealed 41 of second, when improving vacuum generator work operation, the stability that first joint spare 3 and second joint spare 4 and last casing 1 are connected.

Referring to fig. 2 and 5, the diameters of the first sealing gasket 31 and the second sealing gasket 41 decrease progressively along the direction close to the upper shell 1 or the lower shell 2, which is beneficial to better filling the installation gaps between the first clamping piece 3 and the second clamping piece 4 and the upper shell 1 or the lower shell 2, and further improves the stability of the vacuum generator in operation.

The implementation principle of the embodiment of the application is as follows:

the air inlet 511 is connected with the nozzle through the first clamping piece 3, the negative pressure port 521 is connected with the vacuum suction nozzle through the second clamping piece 4, and the compressed air is sprayed towards the direction of the air outlet through the nozzle to form a sprayed air flow, so that the negative pressure port 521 generates negative pressure and generates vacuum. Through the arrangement of the exhaust hood 6, the sound absorption pad 533 and the first sound absorption cotton 61, the first sound absorption cotton 61 and the sound absorption pad 533 absorb and reduce the noise dually, the noise generated when the compressed air is exhausted from the first exhaust port 531 is reduced, and the sound absorption and noise reduction capability of the whole vacuum generator is further enhanced; inhale the setting of sound cotton 72 through protecting crust 7 bottom side second, compressed gas is discharged to the vacuum generator outside from second gas vent 11, then again through the second inhale the sound cotton 72 and fall the noise, the noise reduction is to staff's influence, the decibel of noise reduction, improves vacuum generator's the performance of making an uproar of inhaling.

The embodiments of the present disclosure are all preferred embodiments of the present disclosure, and the protection scope of the present disclosure is not limited thereby, wherein like parts are designated by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A box-type vacuum generator comprises an upper shell (1) and a lower shell (2), wherein a first clamping piece (3) and a second clamping piece (4) are arranged on the side surface of the upper shell (1), a T-shaped three-way vent pipeline (5) is arranged inside the upper shell (1), the vent pipeline (5) is provided with an air inlet (511) close to the first clamping piece (3), a negative pressure port (521) close to the second clamping piece (4) and a first exhaust port (531), and a second exhaust port (11) for exhausting compressed air is arranged on the side surface of the upper shell (1);

the novel exhaust hood is characterized in that a spherical exhaust hood (6) is covered on the side face of the first exhaust port (531), a plurality of exhaust holes (62) which are uniformly distributed are formed in the outer surface of the exhaust hood (6), an exhaust cavity (532) is formed in the end face, close to the outside, of the first exhaust port (531), and a sound absorption pad (533) is arranged on the inner surface of the exhaust cavity (532).

2. A vacuum generator as claimed in claim 1, characterised in that the hood (6) is provided internally with first sound-absorbing cotton (61) for absorbing noise.

3. A box-type vacuum generator according to claim 1, characterized in that a protective shell (7) is provided on the upper housing (1) near the second exhaust port (11), a second sound-absorbing cotton (72) is provided on the side of the protective shell (7) near the upper housing (1), and a plurality of vent holes (71) are uniformly distributed on the outer surface of the protective shell (7).

4. A vacuum generator in form of a cartridge as defined in claim 3, wherein said protective shell (7) has a plurality of locking blocks (73) on its side, and said upper housing (1) has locking holes (12) on its upper surface for inserting said locking blocks (73).

5. A vacuum generator as claimed in claim 4, characterized in that said blocks (73) are uniformly distributed on the side of the shell (7) close to the upper shell (1).

6. The vacuum generator as claimed in claim 1, wherein the first and second engaging members (3, 4) each have a plurality of protrusions (32) on the outer surface thereof, and the upper and lower housings (1, 2) have L-shaped sliding grooves (512) for the protrusions (32) to be inserted and slid therein.

7. A vacuum generator in the form of a box according to claim 1, characterized in that the first snap-in element (3) is provided with a first gasket (31) on the side near the upper housing (1) and the second snap-in element (4) is provided with a second gasket (41) on the side near the upper housing (1).

8. A vacuum generator as claimed in claim 7, characterised in that said first gasket (31) and said second gasket (41) have a diameter decreasing in the direction of approach of the upper shell (1) or of the lower shell (2).