CN210660588U

CN210660588U - Screw rod displacement formula does not have oily vacuum pump

Info

Publication number: CN210660588U
Application number: CN201921451576.4U
Authority: CN
Inventors: 盛昌国
Original assignee: Denair Energy Equipment Co Ltd
Current assignee: Denair Energy Equipment Co Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-06-02
Anticipated expiration: 2029-09-03

Abstract

The utility model relates to the technical field of vacuum pumps, in particular to a screw rod displacement type oilless vacuum pump, which comprises a machine body, an air outlet pipe and an air inlet pipe which are sequentially welded on one side of the machine body, a plurality of lifting rings which are installed on the machine body, and a mounting plate which is welded on the machine body and is far away from the lifting rings, wherein a protective frame is welded on the outer side wall of the machine body; make people can aim at the pipeline with the flange fast and install, reduce the cost of labor and guarantee the installation effectiveness, the organism is extracted the external gas through the intake pipe at the during operation, the filter screen filters impurity in the gas and grit, cotton yarn layer and activated carbon layer can adsorb and filter the moisture in the gas, make impurity and moisture be difficult for getting into in the organism through the intake pipe, avoid causing the influence to the organism, to install pipe and intake pipe separation, make things convenient for people to the filter screen in the intake pipe, cotton yarn layer and activated carbon layer clear up or change, convenient next use.

Description

Screw rod displacement formula does not have oily vacuum pump

Technical Field

The utility model relates to a vacuum pump technical field especially relates to a screw rod displacement formula does not have oily 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, the vacuum pump is a device for improving, generating and maintaining vacuum in a certain closed space by using various methods, when the vacuum pump works, external gas is mostly pumped through a gas inlet pipeline on a machine body, moisture and impurities in the gas are absorbed together while the gas is pumped, so that the impurities and the moisture are accumulated, the machine body is easily influenced, and when people connect the gas inlet pipeline with the external pipeline, workers are required to lift the pipeline and align the pipeline with a flange, so that labor cost is wasted, and the installation efficiency is influenced.

In order to solve the problem, the application provides a screw rod displacement type oil-free vacuum pump.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides a screw rod displacement formula does not have oily vacuum pump, the swivelling joint pipe, until sleeve pipe and baffle laminating, then insert the connecting pipe in the outside pipeline, until outside pipeline and flange laminating, make people can aim at the pipeline with the flange fast and install, reduce the cost of labor and guarantee the installation effectiveness, the filter screen filters impurity and grit in to the gas, cotton yarn layer and activated carbon layer can adsorb and filter the moisture in the gas, it is difficult for getting into the organism through the intake pipe to make impurity and moisture in, avoid causing the influence to the organism, to install pipe and intake pipe separation, make things convenient for people to the filter screen in the intake pipe, cotton yarn layer and activated carbon layer clear up or change, make things convenient for next time to use.

(II) technical scheme

In order to solve the problems, the utility model provides a screw rod variable-pitch oil-free vacuum pump, which comprises a machine body, an outlet pipe and an inlet pipe which are sequentially welded on one side of the machine body, a plurality of rings which are arranged on the machine body, and a mounting plate which is welded on the machine body and is far away from the rings, wherein a protective frame is welded on the outer side wall of the machine body, a cross rod is fixedly arranged on one side of the protective frame far away from the machine body, a filter screen, a cotton yarn layer and an active carbon layer are sequentially arranged on the inner wall of the inlet pipe and are fixedly connected with the filter screen, the cotton yarn layer and the active carbon layer, a mounting pipe is fixedly arranged on one side of the outer side wall of the inlet pipe far away from the machine body, a flange is fixedly arranged on one side of the mounting pipe far away from the inlet pipe, one side of the outer side wall of the connecting pipe, which is far away from the sleeve, is sleeved with a baffle with a hollow structure, and the baffle is welded and fixed with the inner wall of the mounting pipe.

Preferably, the cross rods are distributed annularly along the axis of the protective frame and are welded and fixed with the protective frame.

Preferably, the outer surfaces of the cotton yarn layer and the activated carbon layer are provided with filtering holes, and the filtering holes are arranged in sequence from big to small.

Preferably, the air inlet pipe is divided into a plurality of cavities which are communicated in sequence, and the filter screen, the cotton yarn layer and the activated carbon layer are arranged in the cavities in sequence.

Preferably, the inner wall of the baffle is attached to the flange, and the diameter of the inner wall of the baffle is smaller than that of the outer side wall of the installation pipe.

Preferably, one end of the connecting pipe, which is far away from the sleeve, penetrates through the flange and extends out of the flange.

Preferably, one end of the connecting pipe, which is far away from the sleeve pipe, is of a conical structure.

The above technical scheme of the utility model has following profitable technological effect: rotatory connecting pipe, it is rotatory that the connecting pipe drives the sleeve pipe, and remove until sleeve pipe and baffle laminating along the inner wall of installation pipe, then insert the connecting pipe in the outside pipeline, until outside pipeline and flange laminating, make people can aim at the pipeline with the flange fast and install, reduce the cost of labor and guarantee the installation effectiveness, the organism is extracted outside gas through the intake pipe at the during operation, the filter screen filters impurity and grit in the gas, cotton yarn layer and active carbon layer can adsorb and filter the moisture in the gas, make impurity and moisture be difficult for getting into in the organism through the intake pipe, avoid causing the influence to the organism, to install pipe and intake pipe separation, make things convenient for people to the filter screen in the intake pipe, cotton yarn layer and active carbon layer clear up or change, convenient next use.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic structural diagram of the rear view of the present invention.

Fig. 3 is a schematic structural diagram of the side view of the present invention.

Fig. 4 is a schematic structural view between the middle intake pipe and the flange of the present invention.

Reference numerals:

1. a body; 2. a hoisting ring; 3. mounting a plate; 4. an air outlet pipe; 5. a connecting pipe; 6. a flange; 7. installing a pipe; 8. an air inlet pipe; 9. a protective frame; 10. a sleeve; 11. a baffle plate; 12. filtering with a screen; 13. a cotton yarn layer; 14. an activated carbon layer; 15. a cross bar.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in figures 1-4, the screw variable-pitch oil-free vacuum pump provided by the utility model comprises a machine body 1, an outlet pipe 4 and an inlet pipe 8 which are welded on one side of the machine body 1 in sequence, a plurality of rings 2 which are installed on the machine body 1, and a mounting plate 3 which is welded on the machine body 1 and is far away from the rings 2, a protective frame 9 is welded on the outer side wall of the machine body 1, a cross rod 15 is fixedly arranged on one side of the protective frame 9 far away from the machine body 1, a filter screen 12, a cotton yarn layer 13 and an active carbon layer 14 are sequentially arranged on the inner wall of the inlet pipe 8, and are fixedly connected with the filter screen 12, the cotton yarn layer 13 and the active carbon layer 14, a mounting pipe 7 is fixedly arranged on one side of the outer side wall of the inlet pipe 8 far away from the machine body 1, a flange 6 is fixedly arranged on one side of the mounting pipe 7 far away from the inlet pipe 8, a sleeve 10 is, and the baffle plate 11 is welded and fixed with the inner wall of the installation pipe 7.

In this embodiment, the cross bars 15 are distributed annularly along the axis of the protection frame 9 and are welded and fixed with the protection frame 9.

In this embodiment, the outer surfaces of the cotton yarn layer 13 and the activated carbon layer 14 are provided with filtering holes, and are arranged in sequence from the size to the size.

In this embodiment, the air inlet pipe 8 is divided into a plurality of cavities, which are sequentially communicated, and the filter screen 12, the cotton yarn layer 13 and the activated carbon layer 14 are sequentially arranged in the cavities.

In the utility model, the connecting pipe 5 is rotated to drive the sleeve 10 to rotate and move along the inner wall of the mounting pipe 7 until the sleeve 10 is attached to the baffle 11, then the connecting pipe 5 is inserted into the external pipeline until the external pipeline is attached to the flange 6, so that people can quickly align the pipeline with the flange 6 for mounting, the labor cost is reduced and the mounting efficiency is ensured, the machine body 1 extracts external gas through the air inlet pipe 8 during working, the filter screen 12 filters impurities and sand stones in the gas, the cotton yarn layer 13 and the activated carbon layer 14 can adsorb and filter moisture in the gas, so that the impurities and the moisture are not easy to enter the machine body 1 through the air inlet pipe 8, the influence on the machine body 1 is avoided, the mounting pipe 7 is separated from the air inlet pipe 8, and people can conveniently clean or replace the filter screen 12, the cotton yarn layer 13 and the activated carbon layer 14 in the air inlet pipe 8, the next use is convenient.

As shown in fig. 4, the inner wall of the baffle 11 is attached to the flange 6, and the diameter of the inner wall of the baffle 11 is smaller than that of the outer side wall of the mounting pipe 7.

Rotatory connecting pipe 5, connecting pipe 5 drives sleeve pipe 10 rotatory to remove until installation pipe 7 and baffle 11 laminating back along the inner wall of installation pipe 7, baffle 11 can carry on spacingly to connecting pipe 5 through sleeve pipe 10, avoids connecting pipe 5 to roll over in the installation pipe 7, realizes the fixed to connecting pipe 5, makes things convenient for people to be connected with outside pipeline through connecting pipe 5.

As shown in fig. 4, the end of the connecting pipe 5 remote from the sleeve 10 extends through the flange 6 and extends outside the flange 6.

Because connecting pipe 5 can extend to outside the flange 6, people can insert connecting pipe 5 in the outside pipeline, until outside pipeline and the laminating of flange 6 for people can be installed pipeline and flange 6 alignment fast.

As shown in fig. 4, the end of the connecting tube 5 remote from the sleeve 10 is of a conical configuration.

Because the one end of connecting pipe 5 far away from sleeve pipe 10 is the toper structure, and the bore is less than the other end of connecting pipe 5, makes things convenient for people to insert connecting pipe 5 in the outside pipeline, is connected with the pipeline.

The working principle is as follows: the protective frame 9 can cover the paddle in the machine body 1, the contact with workers is avoided, the potential safety hazard is reduced, the strength of the protective frame 9 can be improved by the cross rod 15, the service life of the protective frame 9 is ensured, the connecting pipe 5 can drive the sleeve 10 to rotate by rotating the connecting pipe 5, the sleeve 10 can move along the inner wall of the mounting pipe 7 until the sleeve 10 is attached to the baffle 11, the baffle 11 can limit the connecting pipe 5 through the sleeve 10, the connecting pipe 5 is prevented from sliding out of the mounting pipe 7, the fixing of the connecting pipe 5 is realized, the connecting pipe 5 can extend out of the flange 6, one end of the connecting pipe 5, far away from the sleeve 10, is of a conical structure, the caliber is smaller than the other end of the connecting pipe 5, the connecting pipe 5 can be conveniently inserted into an external pipeline by people until the external pipeline is attached to the flange 6, so that the people can quickly align the, organism 1 extracts the outside gas through intake pipe 8 at the during operation, filter screen 12 filters impurity in the gas and grit, cotton yarn layer 13 and activated carbon layer 14 can adsorb and filter the moisture in the gas, make impurity and moisture be difficult for getting into in the organism 1 through intake pipe 8, avoid causing the influence to organism 1, to install pipe 7 and intake pipe 8 separation, make things convenient for people to filter screen 12 in the intake pipe 8, cotton yarn layer 13 and activated carbon layer 14 clear up or change, convenient next use.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The screw variable-pitch oil-free vacuum pump is characterized by comprising a machine body (1), an outlet pipe (4) and an inlet pipe (8) which are sequentially welded on one side of the machine body (1), a plurality of lifting rings (2) which are installed on the machine body (1) and a mounting plate (3) which is welded on the machine body (1) and is far away from the lifting rings (2), a protective frame (9) is welded on the outer side wall of the machine body (1), a cross rod (15) is fixedly arranged on one side, far away from the machine body (1), of the protective frame (9), a filter screen (12), a cotton yarn layer (13) and an activated carbon layer (14) are sequentially arranged on the inner wall of the inlet pipe (8), the filter screen (12), the cotton yarn layer (13) and the activated carbon layer (14) are fixedly connected, a mounting pipe (7) is fixedly arranged on one side, far away from the machine body (1), of, keep away from installation pipe (7) one side of intake pipe (8) is fixed and is equipped with flange (6), be equipped with sleeve pipe (10) in installation pipe (7), and with sleeve pipe (10) threaded connection, one side welding of sleeve pipe (10) has connecting pipe (5), connecting pipe (5) lateral wall is kept away from one side cover of sleeve pipe (10) is equipped with hollow structure's baffle (11), just baffle (11) with the inner wall welded fastening of installation pipe (7).

2. The screw variable-pitch oil-free vacuum pump according to claim 1, wherein the cross rods (15) are distributed annularly along the axis of the protective frame (9) and are welded and fixed with the protective frame (9).

3. The screw variable-pitch oil-free vacuum pump as claimed in claim 1, wherein the outer surfaces of the cotton yarn layer (13) and the activated carbon layer (14) are provided with filtering holes, and are sequentially arranged from large to small.

4. The screw variable-pitch oilless vacuum pump according to claim 1, wherein the air inlet pipe (8) is divided into a plurality of chambers, and is sequentially communicated, and the filter screen (12), the cotton yarn layer (13) and the activated carbon layer (14) are sequentially arranged in the chambers.

5. A screw pitch-variable oil-free vacuum pump according to claim 1, wherein the inner wall of the baffle (11) is attached to the flange (6), and the diameter of the inner wall of the baffle (11) is smaller than the diameter of the outer side wall of the mounting pipe (7).

6. A screw pitch-variable oil-free vacuum pump according to claim 1, wherein an end of the connection pipe (5) remote from the sleeve (10) penetrates the flange (6) and extends outside the flange (6).

7. A screw pitch-variable oil-free vacuum pump according to claim 1, wherein the end of the connecting pipe (5) far from the sleeve (10) is of a conical structure.