CN215292899U

CN215292899U - Oil-free vacuum pump with auxiliary noise reduction mechanism

Info

Publication number: CN215292899U
Application number: CN202121311510.2U
Authority: CN
Inventors: 黄丽
Original assignee: Hechen Technology Shanghai Co ltd
Current assignee: Hechen Technology Shanghai Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-24
Anticipated expiration: 2031-06-11

Abstract

The utility model belongs to the technical field of oil-free vacuum pumps, in particular to an oil-free vacuum pump with an auxiliary noise reduction mechanism, which comprises a bottom plate, an oil-free vacuum pump body, a noise reduction shell and a noise reduction assembly; the utility model discloses a vacuum pump, including the shell of making an uproar, there is not oily vacuum pump body installation fixed in bottom plate surface, the shell of making an uproar falls in the oily vacuum pump body outside is provided with, it is formed by first shell, second shell and splice component combination to fall the shell of making an uproar, first shell bottom mounting is in the bottom plate surface, second shell bottom and bottom plate surface sliding connection, second shell inner wall is close to first shell one side fixed mounting and has arc sealing strip, second shell opposite side is provided with the sleeve pipe, and the sleeve pipe corresponds oily vacuum pump body output position and sets up, fall the inside subassembly of making an uproar that is provided with of the shell of making an uproar.

Description

Oil-free vacuum pump with auxiliary noise reduction mechanism

Technical Field

The utility model relates to an oil-free vacuum pump technical field specifically is an oil-free vacuum pump with supplementary mechanism of making an uproar that falls.

Background

The oil-free vacuum pump is identical to general displacement pump, and is formed from main components of stator, rotor, rotary vane, cylinder body and motor, etc. the rotor with rotary vane is eccentrically mounted in the fixed cylinder, when the rotor is rotated at high speed, the four radial sliding rotary vanes in the rotor groove can be used for dividing pump cavity into four working chambers, and under the action of centrifugal force the rotary vanes are tightly attached to cylinder wall, and can be used for separating inlet and outlet of stator, and can be cyclically and repeatedly run to implement variable capacity, and can discharge sucked gas from exhaust outlet so as to attain the goal of pumping air.

Among the prior art, can all send great sound when oil-free vacuum pump operates, generally all far exceed the noise and prescribe a limit to the standard, both influenced oil-free vacuum pump's life, serious polluted environment again, the used device of making an uproar of falling of current oil-free vacuum pump is when making an uproar falling the oil-free vacuum pump, still can have the noise to spread in the device of making an uproar, and the noise reduction effect is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an there is not oily vacuum pump with supplementary mechanism of making an uproar of falling to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an oil-free vacuum pump with an auxiliary noise reduction mechanism comprises a bottom plate, an oil-free vacuum pump body, a noise reduction shell and a noise reduction assembly; the utility model discloses a vacuum pump, including the shell of making an uproar, there is not oily vacuum pump body installation fixed in bottom plate surface, the shell of making an uproar falls in the oily vacuum pump body outside is provided with, it is formed by first shell, second shell and splice component combination to fall the shell of making an uproar, first shell bottom mounting is in the bottom plate surface, second shell bottom and bottom plate surface sliding connection, second shell inner wall is close to first shell one side fixed mounting and has arc sealing strip, second shell opposite side is provided with the sleeve pipe, and the sleeve pipe corresponds oily vacuum pump body output position and sets up, fall the inside subassembly of making an uproar that is provided with of the shell of making an uproar.

Preferably, the bottom end of the second housing extends downwards to be provided with a sliding block, the surface of the bottom plate is correspondingly provided with a sliding groove, and the second housing is in sliding connection with the surface of the bottom plate through the matching of the sliding block and the sliding groove.

Preferably, the second shell is provided with a plurality of limiting bulges at equal intervals on one side opposite to the first shell, the surface of the first shell is correspondingly provided with a limiting groove, and the second shell and the first shell are fixed through the matching clamping of the limiting bulges and the limiting groove.

Preferably, the noise reduction assembly comprises a sound absorption layer, an arc-shaped buffer strip and a connecting rod; the sound absorbing layer is arranged on the inner wall of the noise reduction shell, and sound absorbing cotton is filled in the sound absorbing layer.

Preferably, the sound absorbing layer inboard is provided with arc buffering strip, and arc buffering strip shape matches with oil-free vacuum pump body shape, and arc buffering strip is made by foam.

Preferably, the sound absorption layer and the buffer layer are connected with each other through a plurality of connecting rods, and damping springs are sleeved on the surfaces of the connecting rods.

Preferably, bottom plate bottom surface four corners position department is provided with the pad foot, pads foot and bottom plate bottom surface through damper interconnect, the damper includes loop bar, first damping head, second damping head and buffer spring.

Preferably, first shock attenuation head and second shock attenuation head are located the loop bar inside and with loop bar sliding connection, through buffer spring interconnect between first shock attenuation head and the second shock attenuation head, first shock attenuation head top and bottom plate bottom surface fixed connection, second shock attenuation head bottom and pad foot fixed surface are connected.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a cooperation of making an uproar subassembly and damping piece falls, directly falls the noise through the effect on sound absorbing layer to no oily vacuum pump body, through the effect of arc buffering strip, damping spring and damping piece, weakens the vibrations that no oily vacuum pump body produced when the operation to reach the purpose of making an uproar indirectly falling, thereby satisfy the user demand.

Drawings

Fig. 1 is a schematic overall front structure diagram of the present invention;

fig. 2 is a schematic view of the overall top view structure of the present invention.

In the figure: 1. a base plate; 2. an oil-free vacuum pump body; 3. a noise reducing housing; 301. a first housing; 302. a second housing; 303. an arc-shaped sealing strip; 304. a sleeve; 305. a slider; 306. a chute; 307. a limiting bulge; 308. a limiting groove; 4. a sound absorbing layer; 5. an arc-shaped buffer strip; 6. a connecting rod; 7. a damping spring; 8. a foot pad; 9. a shock absorbing member; 10. a loop bar; 11. a first damping head; 12. a second damping head; 13. a buffer spring.

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 should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: an oilless vacuum pump with an auxiliary noise reduction mechanism comprises a bottom plate 1, an oilless vacuum pump body 2, a noise reduction shell 3 and a noise reduction assembly; oil-free vacuum pump body 2 erection fixation in bottom plate 1 surface, the 2 outsides of oil-free vacuum pump body are provided with and fall shell 3 of making an uproar, it forms by first shell 301, second shell 302 and splice combination to fall shell 3 of making an uproar, first shell 301 bottom mounting in bottom plate 1 surface, second shell 302 bottom and 1 surperficial sliding connection of bottom plate, second shell 302 inner wall is close to first shell 301 one side fixed mounting has arc sealing strip 303, second shell 302 opposite side is provided with sleeve pipe 304, and sleeve pipe 304 corresponds the setting of 2 output end positions of oil-free vacuum pump body, fall the inside subassembly of making an uproar that is provided with of 3 insides of the shell of making an uproar.

Further, the bottom end of the second housing 302 extends downwards to form a sliding block 305, the surface of the bottom plate 1 is correspondingly provided with a sliding groove 306, and the second housing 302 is in sliding connection with the surface of the bottom plate 1 through the matching of the sliding block 305 and the sliding groove 306.

Further, a plurality of limiting protrusions 307 are arranged on one side, opposite to the first shell 301, of the second shell 302 at equal intervals, a limiting groove 308 is correspondingly formed in the surface of the first shell 301, and the second shell 302 and the first shell 301 are fixed through the matching clamping of the limiting protrusions 307 and the limiting groove 308.

Further, the noise reduction assembly comprises a sound absorption layer 4, an arc-shaped buffer strip 5 and a connecting rod 6; the sound absorption layer 4 is arranged on the inner wall of the noise reduction shell 3, and sound absorption cotton is filled in the sound absorption layer 4.

Further, 4 inboards of sound absorbing layer are provided with

arc buffering strip

5, and 5 shapes of arc buffering strip match with 2 shapes of oilless vacuum pump body, and arc buffering strip 5 is made by foam.

Further, sound absorbing layer 4 and the buffer layer are connected with each other through a plurality of connecting rods 6, and damping springs 7 are sleeved on the surfaces of the connecting rods 6.

Furthermore, the four corners of the bottom surface of the bottom plate 1 are provided with pad feet 8, the pad feet 8 are connected with the bottom surface of the bottom plate 1 through shock absorbing pieces 9, and each shock absorbing piece 9 comprises a loop bar 10, a first shock absorbing head 11, a second shock absorbing head 12 and a buffer spring 13.

Furthermore, first shock attenuation head 11 and second shock attenuation head 12 are located the loop bar 10 inside and with loop bar 10 sliding connection, through buffer spring 13 interconnect between first shock attenuation head 11 and the second shock attenuation head 12, first shock attenuation head 11 top and 1 bottom surface fixed connection of bottom plate, second shock attenuation head 12 bottom and 8 fixed surface connections of pad foot.

The working principle is as follows: the utility model provides an oilless vacuum pump with an auxiliary noise reduction mechanism, which comprises a bottom plate 1, an oilless vacuum pump body 2, a noise reduction shell 3 and a noise reduction assembly; the oil-free vacuum pump body 2 is fixedly installed on the surface of a bottom plate 1, a noise reduction shell 3 is arranged on the outer side of the oil-free vacuum pump body 2, the noise reduction shell 3 can play a role in protecting the oil-free vacuum pump body 2, a noise reduction assembly is arranged inside the noise reduction shell 3 and comprises a sound absorption layer 4, an arc buffer strip 5 and a connecting rod 6, sound absorption cotton is filled in the sound absorption layer 4, noise generated when the oil-free vacuum pump body 2 operates can be reduced, the connecting rod 6, a damping spring 7 and the arc buffer strip 5 can reduce vibration generated when the oil-free vacuum pump body 2 operates, so that the purpose of reducing noise is indirectly achieved, the noise reduction shell 3 is formed by combining a first shell 301 and a second shell 302, the noise reduction shell 3 can be disassembled when the oil-free vacuum pump body 2 needs to be maintained, so as to achieve the purpose of convenient maintenance, damping pieces 9 and pad feet 8 are arranged at four corners of the bottom surface of the bottom plate 1, the shock absorbing member 9 comprises a loop bar 10, a first shock absorbing head 11, a second shock absorbing head 12 and a buffer spring 13; the shock absorbing member 9 can weaken the shock to the ground generated by the oil-free vacuum pump body 2 during operation, and further achieve the purpose of noise reduction.

It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an oil-free vacuum pump with supplementary mechanism of making an uproar that falls which characterized in that: comprises a bottom plate (1), an oil-free vacuum pump body (2), a noise reduction shell (3) and a noise reduction assembly; oil-free vacuum pump body (2) erection fixation in bottom plate (1) surface, oil-free vacuum pump body (2) outside is provided with and falls shell (3) of making an uproar, it forms by first shell (301), second shell (302) and splice combination to fall shell (3) of making an uproar, first shell (301) bottom-mounting in bottom plate (1) surface, second shell (302) bottom and bottom plate (1) surface sliding connection, second shell (302) inner wall is close to first shell (301) one side fixed mounting has arc sealing strip (303), second shell (302) opposite side is provided with sleeve pipe (304), and sleeve pipe (304) correspond oil-free vacuum pump body (2) output end position and set up, it falls the subassembly of making an uproar to fall shell (3) inside being provided with.

2. An oil-free vacuum pump with an auxiliary noise reduction mechanism as claimed in claim 1, wherein: the bottom end of the second shell (302) extends downwards to form a sliding block (305), the surface of the bottom plate (1) is correspondingly provided with a sliding groove (306), and the second shell (302) is in sliding connection with the surface of the bottom plate (1) through the matching of the sliding block (305) and the sliding groove (306).

3. An oil-free vacuum pump with an auxiliary noise reduction mechanism as claimed in claim 1, wherein: the second shell (302) and the first shell (301) are opposite to each other, a plurality of limiting protrusions (307) are arranged on one side of the second shell (302) at equal intervals, a limiting groove (308) is correspondingly formed in the surface of the first shell (301), and the second shell (302) and the first shell (301) are fixed through matching clamping of the limiting protrusions (307) and the limiting groove (308).

4. An oil-free vacuum pump with an auxiliary noise reduction mechanism as claimed in claim 1, wherein: the noise reduction assembly comprises a sound absorption layer (4), an arc-shaped buffer strip (5) and a connecting rod (6); the sound absorption layer (4) is arranged on the inner wall of the noise reduction shell (3), and sound absorption cotton is filled in the sound absorption layer (4).

5. An oil-free vacuum pump with an auxiliary noise reduction mechanism as claimed in claim 4, wherein: inhale sound layer (4) inboard and be provided with arc buffering strip (5), arc buffering strip (5) shape matches with oil-free vacuum pump body (2) shape, and arc buffering strip (5) are made by foam.

6. An oil-free vacuum pump with an auxiliary noise reduction mechanism as claimed in claim 5, wherein: the sound absorption layer (4) and the buffer layer are connected with each other through a plurality of connecting rods (6), and damping springs (7) are sleeved on the surfaces of the connecting rods (6).

7. An oil-free vacuum pump with an auxiliary noise reduction mechanism as claimed in claim 1, wherein: bottom plate (1) bottom surface four corners position department is provided with pad foot (8), pad foot (8) and bottom plate (1) underrun damping piece (9) interconnect, damping piece (9) are including loop bar (10), first damping head (11), second damping head (12) and buffer spring (13).

8. An oil-free vacuum pump with an auxiliary noise reduction mechanism as claimed in claim 7, wherein: first shock attenuation head (11) and second shock attenuation head (12) are located loop bar (10) inside and with loop bar (10) sliding connection, through buffer spring (13) interconnect between first shock attenuation head (11) and the second shock attenuation head (12), first shock attenuation head (11) top and bottom plate (1) bottom surface fixed connection, second shock attenuation head (12) bottom and pad foot (8) fixed surface are connected.