CN216518552U

CN216518552U - Microdiaphragm type vacuum pump with explosion-proof structure

Info

Publication number: CN216518552U
Application number: CN202123432647.6U
Authority: CN
Inventors: 许正荣
Original assignee: Suzhou Union Tongli Environmental Technology Co ltd
Current assignee: Suzhou Union Tongli Environmental Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-13
Anticipated expiration: 2031-12-30

Abstract

A kind of miniature diaphragm type vacuum pump with explosion-proof structure, the vacuum pump is set up in a body, the upper end of the body has loaches, the bottom end of the body has loaches, the body and loaches, between loaches and loaches are all sealed and connected; the pump body is positioned above the brush motor, the upper end of the pump body is provided with a pump body air suction port and a pump body exhaust port, the upper cover is provided with a cover body air suction port and a cover body exhaust port, the pump body air suction port is communicated with the cover body air suction port, and the pump body exhaust port is in butt joint with the cover body exhaust port; the lower end of the brush motor is connected with a power line, and the lower end of the power line penetrates through the lower cover. The utility model adopts a full plastic shell to seal the vacuum pump in the shell, and only an air suction port, an air exhaust port and a power line are reserved; because the motor and the diaphragm in the miniature diaphragm type vacuum pump are isolated, sparks generated when the brush motor is reversed are completely isolated in the shell, and an explosion-proof effect can be completely achieved; the vacuum pump adopts a brush motor, has low cost and low failure rate, and is also provided with a silencer and low noise.

Description

Microdiaphragm type vacuum pump with explosion-proof structure

Technical Field

The utility model relates to vacuum pumping equipment, in particular to a micro diaphragm type vacuum pump with an explosion-proof structure.

Background

The micro diaphragm type vacuum pump is used as vacuum pumping equipment and is widely used in the fields of chemical industry and household appliances; particularly as a gas sampling tool, is commonly used for collecting flammable and explosive gases. Therefore, the explosion-proof performance of the micro vacuum pump is very important. If the vacuum pump adopts a direct current brushless motor, the requirements of no commutation, no friction and no spark can be met, but the brushless motor has higher cost and complex circuit board structure, so the failure rate is higher, and the maintenance or replacement cost is also high. There is a brush motor that is relatively low in price and relatively low in failure rate, but if the brush motor is directly used, there is a risk that sparks will explode gas.

Therefore, a micro diaphragm type vacuum pump having an explosion-proof structure has been designed to solve the above problems.

It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the utility model.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a micro diaphragm type vacuum pump with an explosion-proof structure.

In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: a kind of miniature diaphragm type vacuum pump with explosion-proof structure, this vacuum pump is made up of pump body and brush motor, the said vacuum pump is set up in a body, the upper end of the said body has loam cakes, the lower end of the said body has lower covers, the said body and said loam cake, lower cover are connected sealingly; the pump body is positioned above the brush motor, a pump body air suction port and a pump body exhaust port are arranged at the upper end of the pump body, a cover body air suction port and a cover body exhaust port are formed in the upper cover, the pump body air suction port is communicated with the cover body air suction port, and the pump body exhaust port is in butt joint with the cover body exhaust port; the lower end of the brush motor is connected with a power line, and the lower end of the power line penetrates through the lower cover.

The preferable technical scheme is as follows: the lid gas vent is provided with the muffler, the lid gas vent with sealing connection between the muffler, the muffler is provided with the venthole.

The preferable technical scheme is as follows: and the pump body exhaust port and the silencer are welded by plastics.

The preferable technical scheme is as follows: and a silica gel gasket is arranged between the pump body exhaust port and the silencer.

The preferable technical scheme is as follows: the lower cover is arranged in a manner of sinking into the inner side of the shell, and a glue filling layer is arranged below the lower cover.

The preferable technical scheme is as follows: the lower cover and the shell are hermetically arranged through plastic welding.

The preferable technical scheme is as follows: the air suction port of the cover body is a raised tubular port.

The preferable technical scheme is as follows: the housing is cylindrical in shape.

The preferable technical scheme is as follows: the shell and the upper cover and the lower cover are welded by plastic.

Due to the application of the technical scheme, compared with the prior art, the utility model has the advantages that:

the vacuum pump designed by the utility model adopts the all-plastic shell to completely seal the vacuum pump in the shell, and only an air suction port, an air exhaust port and a power line are reserved; because the motor and the diaphragm in the micro diaphragm type vacuum pump are isolated, sparks generated when the brush motor is reversed are completely isolated in the full-plastic shell, and the explosion-proof effect can be completely achieved; the vacuum pump adopts a brush motor, has low cost and low failure rate, and is also provided with an exhaust silencer, so the noise is low.

Drawings

FIG. 1 is a first general schematic diagram of the present invention.

FIG. 2 is a second overall view of the present invention.

FIG. 3 is a schematic view of a portion of the structure of the present invention.

Fig. 4 is a schematic view of the upper cover.

Fig. 5 is a schematic view of the pump body.

In the above drawings, a pump body 1, a brush motor 2, a housing 3, an upper cover 4, a lower cover 5, a pump body air suction opening 6, a pump body air exhaust opening 7, a cover body air suction opening 8, a cover body air exhaust opening 9, a power line 10 and a silencer 11.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 5. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the products of the present invention are usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b): as shown in fig. 1 to 5, a micro diaphragm type vacuum pump with an explosion-proof structure comprises a pump body 1 and a brush motor 2, the vacuum pump is arranged in a shell 3, an upper cover 4 is arranged at the upper end of the shell 3, a lower cover 5 is arranged at the lower end of the shell 3, and the shell 3 is hermetically connected with the upper cover 4 and the lower cover 5; the pump body 1 is positioned above the brush motor 2, a pump body air suction port 6 and a pump body exhaust port 7 are arranged at the upper end of the pump body 1, a cover body air suction port 8 and a cover body exhaust port 9 are arranged on the upper cover 4, the pump body air suction port 6 is communicated with the cover body air suction port 8, and the pump body exhaust port 7 is in butt joint with the cover body exhaust port 9; the lower end of the brush motor 2 is connected with a power cord 10, and the lower end of the power cord 10 penetrates through the lower cover 5. Lid gas vent 9 is provided with muffler 11, sealing connection between lid gas vent 9 and the muffler 11, muffler 11 is provided with the venthole. The cover body air suction opening 8 is a raised tubular opening. The housing 3 is cylindrical in shape. Wherein, the shell 3 is made of plastic.

The preferred embodiment is: the pump body exhaust port 7 and the silencer 11 are welded by plastics.

The preferred embodiment is: a silica gel gasket is arranged between the pump body exhaust port 7 and the silencer 11.

The preferred embodiment is: the lower cover 5 is arranged at the inner side of the casing 3 in a sinking way, and the glue filling layer is arranged below the lower cover 5.

The preferred embodiment is: the lower cover 5 and the shell 3 are hermetically arranged through plastic welding.

The preferred embodiment is: the shell 3, the upper cover 4 and the lower cover 5 are welded by plastic.

The assembled micro vacuum pump is placed into a cylindrical shell, and two ends of the shell are completely sealed by an upper cover and a lower cover. The upper cover is provided with an air suction port and a silencer, and the silencer is provided with an air outlet. The silencer is completely sealed and butted with the exhaust port of the cover body and the exhaust port of the pump body; and a power line outlet hole of the motor is reserved on the lower cover and used for enabling a power line of the motor to extend out of the shell. The upper cover and the shell as well as the silencer and the shell can be completely sealed by adopting a plastic welding mode; the silencer and the exhaust port of the pump body can be in sealed butt joint by welding or a silica gel ring. The lower cover and the shell can be sealed by plastic welding; after the power line passes through the wire outlet hole of the lower cover, the sealing can be realized by adopting a glue pouring mode. Or the lower cover is sunk into a part of the shell, the power line penetrates out of the lower cover, glue is filled, and the lower cover and the shell as well as the power line and the lower cover are sealed simultaneously.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a miniature diaphragm formula vacuum pump that has explosion-proof structure, this vacuum pump comprises the pump body and has brush motor, its characterized in that: the vacuum pump is arranged in a shell, an upper cover is arranged at the upper end of the shell, a lower cover is arranged at the lower end of the shell, and the shell is hermetically connected with the upper cover and the lower cover; the pump body is positioned above the brush motor, a pump body air suction port and a pump body exhaust port are arranged at the upper end of the pump body, a cover body air suction port and a cover body exhaust port are formed in the upper cover, the pump body air suction port is communicated with the cover body air suction port, and the pump body exhaust port is in butt joint with the cover body exhaust port; the lower end of the brush motor is connected with a power line, and the lower end of the power line penetrates through the lower cover.

2. A micro diaphragm vacuum pump having an explosion-proof structure according to claim 1, wherein: the lid gas vent is provided with the muffler, the lid gas vent with sealing connection between the muffler, the muffler is provided with the venthole.

3. A micro diaphragm vacuum pump having an explosion-proof structure according to claim 2, wherein: and the pump body exhaust port and the silencer are welded by plastics.

4. A micro diaphragm vacuum pump having an explosion-proof structure according to claim 2, wherein: and a silica gel gasket is arranged between the pump body exhaust port and the silencer.

5. A micro diaphragm vacuum pump having an explosion-proof structure according to claim 1, wherein: the lower cover is arranged in a manner of sinking into the inner side of the shell, and a glue filling layer is arranged below the lower cover.

6. A micro diaphragm vacuum pump having an explosion-proof structure according to claim 1, wherein: the lower cover and the shell are hermetically arranged through plastic welding.

7. A micro diaphragm vacuum pump with explosion-proof structure as claimed in claim 1, wherein: the air suction port of the cover body is a raised tubular port.

8. A micro diaphragm vacuum pump with explosion-proof structure as claimed in claim 1, wherein: the housing is cylindrical in shape.

9. A micro diaphragm vacuum pump having an explosion-proof structure according to claim 1, wherein: the shell and the upper cover and the lower cover are welded by plastic.