CN213728458U - Vacuum cover capable of effectively isolating external noise - Google Patents
Vacuum cover capable of effectively isolating external noise Download PDFInfo
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- CN213728458U CN213728458U CN202022801399.7U CN202022801399U CN213728458U CN 213728458 U CN213728458 U CN 213728458U CN 202022801399 U CN202022801399 U CN 202022801399U CN 213728458 U CN213728458 U CN 213728458U
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- vacuum
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- side wall
- external noise
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Abstract
The utility model relates to a vacuum hood technical field specifically is a can effectively completely cut off vacuum hood of external noise, including the cover body, cover body below is equipped with the base plate, and base plate lateral wall both sides are equipped with two connection otic placodes, and connection otic placode top ann has the driving cylinder, and cover body lateral wall is equipped with two fixed plates, and the fixed plate is ann on the piston rod end of driving cylinder, is equipped with the vacuum tube on the cover body lateral wall, is equipped with soundproof cotton on the cover body inner wall, and open cover body bottom has the recess that the cross-section is "T" style of calligraphy structure, inlays in the recess and has the sealing washer. This can effectively completely cut off external noise's vacuum hood, in the use, through the sealed effect of the sealing washer increase cover body and base plate hookup location, the influence of the noise of the isolated cover body outside production of rethread soundproof cotton to cover body inside, through the air of the internal portion of vacuum tube extraction cover simultaneously, cuts off the medium that sound was propagated, further isolated noise, the assurance experiment go on smoothly and the accurate nature of experimental result.
Description
Technical Field
The utility model relates to a vacuum cover technical field specifically is a can effectively completely cut off external noise's vacuum cover.
Background
The vacuum cover is a cover for isolating air, is commonly used for various air pumping experiments in a laboratory under a vacuum environment, has poor sound insulation effect, and in the using process, sound generated outside the vacuum cover can be transmitted to the inside through the cover body, can influence an experimental object inside the cover body, and further influence an experimental result.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can effectively completely cut off external noise's vacuum cover to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a vacuum cover capable of effectively isolating external noise comprises a cover body, a base plate is arranged below the cover body, two symmetrical connecting lug plates are arranged on two sides of the outer side wall of the base plate, a driving cylinder is mounted at the top of each connecting lug plate, a piston rod of the driving cylinder is vertically upward, two fixing plates which are symmetrical and correspond to the driving cylinders one to one are arranged on the outer side wall of the cover body close to the top edge of the outer side wall of the cover body, the fixing plates are mounted at the tail end of the piston rod of the driving cylinder, a supporting plate is connected between the bottom of each fixing plate and the outer side wall of the cover body, a vacuum tube communicated with the inside of the cover body is arranged on the outer side wall of the cover body, a control valve is mounted on the vacuum tube, a vacuum meter is mounted at the top of the cover body, an observation window, the cover body bottom is seted up the recess that the cross-section is "T" style of calligraphy structure, it has the sealing washer to inlay in the recess, the sealing washer bottom extends to cover body bottom below.
Preferably, the connecting lug plate and the base plate are of an integrally formed structure, and the driving cylinder is fixed on the connecting lug plate through screw locking.
Preferably, the fixing plate is tightly welded on the cover body, and the fixing plate is locked and fixed at the tail end of the piston rod of the driving cylinder through a screw.
Preferably, the vacuum tube is tightly welded on the cover body, and the tail end of the outer side wall of the vacuum tube is provided with a connecting flange which is in an integrally formed structure.
Preferably, the soundproof cotton is closely adhered to the cover body.
Preferably, two symmetrical lifting lug seats are tightly welded on the outer side wall of the cover body.
Compared with the prior art, the beneficial effects of the utility model are that:
this can effectively completely cut off external noise's vacuum cover, be equipped with soundproof cotton on cover inner wall, the bottom is inlayed and is had the sealing washer, in the use, increase the sealed effect of the cover body and base plate hookup location through the sealing washer, the outside noise that produces of the isolated cover body of rethread soundproof cotton is to the influence of the internal portion of cover, be equipped with the vacuum tube on the lateral wall of the cover simultaneously, the internal air of the accessible vacuum tube extraction cover, cut off the medium of sound propagation, further isolated noise, the assurance is experimental going on smoothly and the accurate nature of experimental result.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the base plate of the present invention;
fig. 3 is an explosion diagram of the structure of the middle cover body of the present invention.
In the figure:
1. a substrate; 10. connecting the ear plates;
2. a drive cylinder;
3. a cover body; 30. an observation window; 31. sound insulation cotton; 32. a groove; 33. a seal ring;
4. a fixing plate;
5. a support plate;
6. a vacuum tube; 60. a control valve; 61. a connecting flange;
7. a vacuum gauge;
8. a transparent sealing plate;
9. and (4) lifting the lug seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a vacuum cover capable of effectively isolating external noise comprises a cover body 3, a base plate 1 is arranged below the cover body 3, two symmetrical connecting lug plates 10 are arranged on two sides of the outer side wall of the base plate 1, a driving cylinder 2 is mounted at the top of each connecting lug plate 10, a piston rod of the driving cylinder 2 is vertically upward, two fixing plates 4 which are symmetrical and correspond to the driving cylinders 2 one by one are arranged on the outer side wall of the cover body 3 close to the top edge of the outer side wall, the fixing plates 4 are mounted at the tail end of the piston rod of the driving cylinder 2, a vacuum tube 6 communicated with the inner side of the cover body 3 is arranged on the outer side wall of the cover body 3, a control valve 60 is mounted on the vacuum tube 6, soundproof cotton 31 is arranged on the inner wall of the cover body 3, a groove 32 with a T-shaped structure in cross section is formed in the bottom of the cover body 3, a sealing ring 33 is embedded in the groove 32, the bottom of the sealing ring 33 extends to the lower part of the bottom of the cover body 3, the sealing ring 33 is made of rubber, and the sealing effect of the connecting position of the cover body 3 and the base plate 1 is increased through the sealing ring 33, the noise that completely cuts off the outside production of cover body through soundproof cotton 31 again to the inside influence of the cover body 3, through the inside air of the vacuum tube 6 extraction cover body 3 simultaneously, cuts off the medium that the sound was propagated, further completely cuts off the noise, guarantees going on smoothly of experiment and the accurate nature of experimental result.
In the embodiment, the vacuum gauge 7 is installed at the top of the cover body 3, so that when air in the cover body 3 is extracted through the vacuum tube 6, the air pressure in the cover body 3 can be observed through the vacuum gauge 7; set up on the cover body 3 lateral wall along vertical direction and rather than the observation window 30 that link up mutually, it has transparent sealing plate 8 to inlay on the observation window 30 inner wall, and transparent sealing plate 8 adopts transparent ya keli to make, is convenient for in the use, sees through transparent sealing plate 8 and observes the inside condition of the cover body 3.
In addition, a supporting plate 5 is connected between the bottom of the fixing plate 4 and the outer side wall of the cover body 3, one end of the supporting plate 5 is tightly welded on the fixing plate 4, the other end of the supporting plate 5 is tightly welded on the cover body 3, the fixing plate 4 is further supported through the supporting plate 5, the structural strength of the fixing plate 4 is increased, and the fixing plate 4 is prevented from being deformed and damaged in the using process; the outer side wall of the cover body 3 is tightly welded with two symmetrical lifting lug seats 9, so that the cover body 3 can be lifted and carried conveniently through the lifting lug seats 9 during installation.
Furthermore, the driving cylinder 2 is locked and fixed on the connecting lug plate 10 through screws, the fixing plate 4 is locked and fixed on the tail end of the piston rod of the driving cylinder 2 through screws, and the screws are locked and fixed, so that the mounting and the dismounting are convenient, and the later maintenance and the repair are convenient; the soundproof cotton 31 is tightly adhered to the cover body 3, and is adhered and fixed for convenient installation.
Secondly, the tail end of the outer side wall of the vacuum tube 6 is provided with a connecting flange 61 which is of an integrally formed structure, so that the vacuum tube 6 can be conveniently connected to vacuum extraction equipment through the connecting flange 61.
Specifically, the connecting ear plate 10 and the base plate 1 are in an integrally formed structure, the integrally formed structure is convenient to produce, the produced product is high in size precision, raw materials are saved, the integrally formed structure is stable, and the connecting ear plate is not easy to deform or damage in the using process and long in service life; the fixed plate 4 is tightly welded on the cover body 3, the vacuum tube 6 is tightly welded on the cover body 3, the welding and fixing process is simple, the structure is stable, the cover is not easy to fall off and damage in the using process, and the service life is long.
When the vacuum cover capable of effectively isolating external noise is used, a worker firstly checks the integrity of the vacuum cover and whether the connection of each part is firm; then the vacuum tube 6 is connected to a vacuum extraction device through a connecting flange 61; then, the piston rod of the driving cylinder 2 extends out to drive the fixing plate 4 and the cover body 3 to move upwards, the experimental object and the experimental article are placed on the substrate 1 right below the cover body 3, and then the piston rod of the driving cylinder 2 retracts to drive the fixing plate 4 and the cover body 3 to move downwards until the sealing ring 33 is in contact with and extruded on the substrate 1; then the control valve 60 is opened, the vacuum extraction equipment extracts the air in the cover body 3 through the vacuum tube 6, and after the air extraction is finished, the control valve 60 is closed; the influence of noise generated outside the cover body on the inside of the cover body 3 is isolated through the soundproof cotton 31, and meanwhile, the medium for sound transmission is cut off through the vacuum environment, so that the influence of noise is further isolated.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A can effectively insulate against the vacuum hood of external noise, includes the cover body (3), its characterized in that: the improved vacuum cleaner is characterized in that a base plate (1) is arranged below the cover body (3), two symmetrical connecting lug plates (10) are arranged on two sides of the outer side wall of the base plate (1), a driving cylinder (2) is installed at the top of each connecting lug plate (10), a piston rod of each driving cylinder (2) is vertically upward, two symmetrical fixing plates (4) which correspond to the driving cylinders (2) one by one are arranged on the outer side wall of the cover body (3) close to the top edge of the outer side wall of the cover body, the fixing plates (4) are installed at the tail end of the piston rod of the driving cylinder (2), a supporting plate (5) is connected between the bottom of each fixing plate (4) and the outer side wall of the cover body (3), a vacuum tube (6) communicated with the inner part of the cover body is arranged on the outer side wall of the cover body (3), a control valve (60) is installed on the vacuum tube (6), a vacuum meter (7) is installed at the top of the cover body (3), an observation window (30) communicated with the cover body along the vertical direction is arranged on the outer side wall of the cover body (3), the utility model discloses an observation window, including observation window (30), cover body (3), recess (32), sealing washer (33) are inlayed in recess (32), observation window (30) inner wall is gone up and is inlayed transparent sealing plate (8), be equipped with soundproof cotton (31) on the cover body (3) inner wall, the recess (32) that the cross-section is "T" style of calligraphy structure is seted up to the cover body (3) bottom, it has sealing washer (33) to inlay in recess (32), sealing washer (33) bottom extends to the cover body (3) bottom below.
2. The vacuum hood effective for isolating external noise according to claim 1, wherein: the connecting lug plate (10) and the base plate (1) are of an integrally formed structure, and the driving cylinder (2) is fixed on the connecting lug plate (10) through screw locking.
3. The vacuum hood effective for isolating external noise according to claim 1, wherein: the fixed plate (4) is tightly welded on the cover body (3), and the fixed plate (4) is fixed at the tail end of the piston rod of the driving cylinder (2) through screw locking.
4. The vacuum hood effective for isolating external noise according to claim 1, wherein: the vacuum tube (6) is tightly welded on the cover body (3), and the tail end of the outer side wall of the vacuum tube (6) is provided with a connecting flange (61) which is of an integrally formed structure.
5. The vacuum hood effective for isolating external noise according to claim 1, wherein: the soundproof cotton (31) is tightly adhered to the cover body (3).
6. The vacuum hood effective for isolating external noise according to claim 1, wherein: two symmetrical lifting lug seats (9) are tightly welded on the outer side wall of the cover body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022801399.7U CN213728458U (en) | 2020-11-27 | 2020-11-27 | Vacuum cover capable of effectively isolating external noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022801399.7U CN213728458U (en) | 2020-11-27 | 2020-11-27 | Vacuum cover capable of effectively isolating external noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213728458U true CN213728458U (en) | 2021-07-20 |
Family
ID=76831017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022801399.7U Active CN213728458U (en) | 2020-11-27 | 2020-11-27 | Vacuum cover capable of effectively isolating external noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213728458U (en) |
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2020
- 2020-11-27 CN CN202022801399.7U patent/CN213728458U/en active Active
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