CN210859131U

CN210859131U - Exhaust structure of electronic vacuum pump

Info

Publication number: CN210859131U
Application number: CN201921528718.2U
Authority: CN
Inventors: 刘毅
Original assignee: Qinnai New Energy Technology Suzhou Co ltd
Current assignee: Qinnai New Energy Technology Suzhou Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-26
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses an exhaust structure of an electronic vacuum pump, which belongs to the technical field of vacuum pumps and comprises a mounting plate, wherein a mounting hole penetrates through the outer surface of the mounting plate, a connecting disc is fixed at the top of the mounting plate, an exhaust pipe penetrates through the middle inside of the mounting plate, when the vacuum pump runs, air pressure can be discharged outwards through the exhaust pipe, so that the air pressure can flush a semicircular shield, and the spring is connected with the shield through a sheath, so that after the shield is flushed, the spring can be stretched and deformed, the shield is far away from the exhaust pipe, further the air pressure can be discharged through the exhaust pipe, when the vacuum pump is used, the spring can retract to drive the shield to move towards the vacuum pump, the shield is sleeved on the outer surface of the exhaust pipe, and the exhaust pipe can be jointed with a sealing gasket, so that the shield can protect the exhaust pipe to prevent sundries and, and can prevent in time that the inside negative pressure that forms of vacuum pump be connected with the blast pipe.

Description

Exhaust structure of electronic vacuum pump

Technical Field

The utility model relates to a vacuum pump technical field specifically is an exhaust structure of electron vacuum pump.

Background

The vacuum pump is a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physical-chemical method, and for a traditional automobile, in order to meet the emission requirement of an engine, the vacuum degree in an auxiliary booster of a brake system cannot be guaranteed; and for hybrid vehicles and pure electric vehicles, the interior of the hybrid vehicles and the pure electric vehicles is not provided with a vacuum source, and the conditions need to be compensated through an electronic vacuum pump.

Current electron vacuum pump's exhaust structure, general blast pipe can extend to vacuum pump below, and do not protect the blast pipe again, when the vacuum pump is in humid environment for a long time, can lead to the exhaust pipe mouth of pipe to get into moist air or water, and can make the blast pipe stop up easily, use to cause the influence to the vacuum pump, and because exhaust structure is in the inside of vacuum pump usually, stop in the twinkling of an eye at the vacuum pump, stop up the blast pipe and prevent the negative pressure, make exhaust structure only can with the vacuum pump looks adaptation of single kind, application scope is not enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic vacuum pump's exhaust structure to propose among the above-mentioned background art that exhaust structure is not comprehensive and exhaust structure application scope is not enough problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an exhaust structure of electronic vacuum pump, includes the mounting panel, the surface of mounting panel runs through there is the mounting hole, the top of mounting panel is fixed with the connection pad, it has the blast pipe to run through in the middle of the inside of mounting panel, there is the sheath, two bottom both sides of mounting panel have the sheath through spring coupling be fixed with the guard shield between the sheath, the inside of guard shield is fixed with sealed the pad.

Preferably, the inner diameter of the connecting disc is gradually reduced from outside to inside.

Preferably, the number of the mounting holes is four, and the four mounting holes are uniformly distributed.

Preferably, the sealing gasket is circular, and one end of the exhaust pipe is attached to the sealing gasket.

Preferably, the shield is semicircular and the inner wall of the shield is smooth.

Preferably, the shield is sleeved on the outer surface of the exhaust pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the exhaust structure of the electronic vacuum pump is provided with a spring, a sheath, a shield and a sealing gasket, when the vacuum pump operates, air pressure can be discharged outwards through an exhaust pipe, so that the semicircular shield is flushed by the air pressure, and the spring is connected with the shield through the sheath, so that after the shield is flushed, the spring can be stretched and deformed, the shield is far away from the exhaust pipe, and further the air pressure can be discharged through the exhaust pipe, when the vacuum pump is used, the spring can retract to drive the shield to move towards the vacuum pump, so that the shield is sleeved on the outer surface of the exhaust pipe, and the exhaust pipe can be attached to the sealing gasket, so that the shield can protect the pipe orifice of the exhaust pipe, prevent sundries and dust from entering, and can prevent negative pressure from being formed inside the vacuum pump connected with the exhaust pipe in time, the condition that the exhaust structure is not complete is avoided, and meanwhile, the, when installing exhaust structure, the staff can dock the connection pad in the gas vent department of vacuum pump, because the inside diameter outside-in of connection pad reduces gradually, make the connection pad can with the gas vent looks adaptation of the different bore of majority, thereby let exhaust structure can with this looks adaptation of majority vacuum pump, and after connection pad and vacuum pump exhaust hole dock, the staff can use the bolt to pass through the mounting hole and install exhaust structure on the vacuum pump that corresponds, easy and simple to handle and application scope are wide, avoided the not enough condition of exhaust structure application scope.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a front cross-sectional structure of the mounting plate of the present invention;

fig. 3 is a schematic top view of the mounting plate of the present invention;

fig. 4 is a schematic diagram of a partially enlarged structure of the present invention a.

In the figure: 1. mounting a plate; 2. a spring; 3. a sheath; 4. a shield; 5. an exhaust pipe; 6. a connecting disc; 7. mounting holes; 8. and a gasket.

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 present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "fixed," "sleeved," and the like are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the two elements may be connected directly or indirectly through an intermediate medium, and the two elements may be connected internally or in an interaction relationship, and a person skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an electronic vacuum pump's exhaust structure, including mounting panel 1, spring 2, sheath 3, guard shield 4, blast pipe 5, connection pad 6, mounting hole 7 and sealed pad 8, mounting panel 1's surface runs through there is mounting hole 7, mounting panel 1's top is fixed with connection pad 6, run through in the middle of mounting panel 1's inside has blast pipe 5, blast pipe 5 is used for the discharge pressure, mounting panel 1's bottom both sides are connected with sheath 3 through spring 2, be fixed with guard shield 4 between two sheath 3, guard shield 4's inside is fixed with sealed pad 8.

Referring to fig. 1 to 3, the inner diameter of the connecting disc 6 is gradually reduced from outside to inside, so that the applicability of the connecting disc 6 is wider, four mounting holes 7 are provided, and the four mounting holes 7 are uniformly distributed, so that the exhaust structure can be conveniently mounted and fixed.

Referring to fig. 1-4, the sealing gasket 8 is circular, and one end of the exhaust pipe 5 is attached to the sealing gasket 8, so as to improve the sealing performance of the shield 4 to the exhaust pipe 5, and the shield 4 is semicircular, and the inner wall of the shield 4 is smooth, so as to improve the wind collecting capacity of the shield 4, so that the shield 4 is easily opened by air pressure.

Referring to fig. 1-4, the shield 4 is sleeved on the outer surface of the exhaust pipe 5, so that the shield 4 can protect the exhaust pipe 5.

The working principle is as follows: firstly, when the exhaust structure is installed, a worker can butt joint the connecting disc 6 at an exhaust port of a vacuum pump, the inner diameter of the connecting disc 6 is gradually reduced from outside to inside, so that the connecting disc 6 can be matched with exhaust ports with different apertures, so that the exhaust structure can be matched with the vacuum pumps, after the connecting disc 6 is butted with an exhaust port of the vacuum pump, the worker can install the exhaust structure on the corresponding vacuum pump through the installation hole 7 by using bolts, when the vacuum pump operates, air pressure can enter the exhaust pipe 5 through the connecting disc 6, the semicircular shield 4 can be flushed by the air pressure, and because the spring 2 is connected with the shield 4 through the shield 3, after the shield 4 is flushed, the spring 2 can be stretched and deformed, so that the shield 4 is far away from the exhaust pipe 5, so that the air pressure can be exhausted through the exhaust pipe 5, and when the vacuum pump is used, spring 2 can contract back, drives guard shield 4 and removes to the vacuum pump, lets guard shield 4 cover at 5 surfaces of blast pipe, and blast pipe 5 can laminate mutually with sealed pad 8 for guard shield 4 can protect 5 mouths of pipe of blast pipe, prevents that debris and dust from getting into, and can in time prevent the inside negative pressure that forms of vacuum pump be connected with blast pipe 5.

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. An exhaust structure of an electronic vacuum pump, comprising a mounting plate (1), characterized in that: the surface of mounting panel (1) runs through there is mounting hole (7), the top of mounting panel (1) is fixed with connection pad (6), it has blast pipe (5) to run through in the middle of the inside of mounting panel (1), the bottom both sides of mounting panel (1) are connected with sheath (3), two through spring (2) be fixed with guard shield (4) between sheath (3), the inside of guard shield (4) is fixed with sealed pad (8).

2. An exhaust structure of an electronic vacuum pump as set forth in claim 1, wherein: the inner diameter of the connecting disc (6) is gradually reduced from outside to inside.

3. An exhaust structure of an electronic vacuum pump as set forth in claim 1, wherein: the number of the mounting holes (7) is four, and the four mounting holes (7) are uniformly distributed.

4. An exhaust structure of an electronic vacuum pump as set forth in claim 1, wherein: the sealing gasket (8) is in a ring shape, and one end of the exhaust pipe (5) is attached to the sealing gasket (8).

5. An exhaust structure of an electronic vacuum pump as set forth in claim 1, wherein: the protective cover (4) is semicircular, and the inner wall of the protective cover (4) is smooth.

6. An exhaust structure of an electronic vacuum pump as set forth in claim 1, wherein: the shield (4) is sleeved on the outer surface of the exhaust pipe (5).