CN213899989U

CN213899989U - Check valve structure for vacuum pump

Info

Publication number: CN213899989U
Application number: CN202023019525.XU
Authority: CN
Inventors: 黄立福; 陆江艺; 黄春雨
Original assignee: Dongguan Fuyunlai Vacuum Technology Co ltd
Current assignee: Dongguan Fuyunlai Vacuum Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-06
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a check valve structure for vacuum pump relates to the check valve field, which comprises a valve body, the outside of valve body is provided with the connector, the rotation post is installed at the top of valve body, the outside of rotating the post is provided with the torsional spring, the externally mounted of torsional spring has the valve gap, the back connection of valve gap has sealed the pad, the trompil has been seted up to the avris of valve gap, the inside of trompil runs through there is the check lever. The utility model discloses a back of locking lever is unscrewed, the valve gap can be opened around the rotatory bullet of rotation post under the spring action of torsional spring for the valve gap open more automatic and high-efficient, need not with the help of external instrument, labour saving and time saving, spherical valve gap pressure-resistant ability is strong simultaneously, is difficult for dying because of deformation and valve body card, has guaranteed the quick convenient of valve gap switching.

Description

Check valve structure for vacuum pump

Technical Field

The utility model relates to a check valve field specifically is a check valve structure for vacuum pump.

Background

The check valve is a valve with a circular valve clack as an opening and closing part and acts by self weight and medium pressure to block the medium from flowing backwards, is commonly used in a vacuum pump, and is designed into a check valve structure for the vacuum pump.

The opening and closing of valve gap of generally not being convenient for of current check valve, the user need open the valve gap with the help of outside instrument, wastes time and energy, and the valve gap is deformed under vacuum pump pressure differential's effect easily simultaneously, dies with the valve body card, has further increaseed the degree of difficulty that the valve gap opened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the existing check valve is not convenient for the opening and closing of the valve cover generally, the check valve structure for the vacuum pump is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a check valve structure for vacuum pump, includes the valve body, the outside of valve body is provided with the connector, the rotation post is installed at the top of valve body, the outside of rotating the post is provided with the torsional spring, the externally mounted of torsional spring has the valve gap, the back connection of valve gap has sealed the pad, the trompil has been seted up to the avris of valve gap, the inside of trompil runs through there is the check lever.

Preferably, the inner wall of the valve body is sprayed with an antirust coating.

Preferably, the two sides of the valve body are both provided with connecting ports, and sealing rings are mounted inside the two connecting ports.

Preferably, the valve cover and the valve body form an elastic rotating structure through a torsion spring, and the valve cover is movably connected with the rotating column.

Preferably, the valve cover is arranged in a spherical shape, and the shape and the size of the valve cover are matched with those of the valve body.

Preferably, the sealing gasket is arranged in an annular shape, and the sealing gasket is fixedly connected with the valve body.

Preferably, threaded connection is adopted between the locking rod and the opening, and the locking rod and the valve cover are arranged in parallel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a back of locking lever is unscrewed, the valve gap can be opened around the rotatory bullet of rotation post under the spring action of torsional spring for the valve gap open more automatic and high-efficient, need not with the help of external instrument, labour saving and time saving, spherical valve gap pressure-resistant ability is strong simultaneously, is difficult for dying because of deformation and valve body card, has guaranteed the quick convenient of valve gap switching.

Drawings

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

FIG. 2 is a schematic view of the structural connection between the sealing gasket and the valve body according to the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a valve body; 2. a connecting port; 3. rotating the column; 4. a torsion spring; 5. a valve cover; 6. a gasket; 7. opening a hole; 8. a locking lever.

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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-3, a check valve structure for a vacuum pump includes a valve body 1, a connection port 2 is disposed on an outer side of the valve body 1, a rotation column 3 is installed on a top of the valve body 1, a torsion spring 4 is disposed on an outer portion of the rotation column 3, a valve cover 5 is installed on an outer portion of the torsion spring 4, a sealing gasket 6 is connected to a back surface of the valve cover 5, an opening 7 is formed in an edge side of the valve cover 5, and a locking rod 8 penetrates through an inner portion of the opening 7.

The utility model discloses a back of 8 locking levers is unscrewed, valve gap 5 can be opened around rotating 3 rotatory bullets of post under the spring action of torsional spring 4 for valve gap 5 open more automatic and high-efficient, need not with the help of external instrument, labour saving and time saving, spherical valve gap 5 pressure-resistant ability is strong simultaneously, is difficult for dying because of deformation and 1 card of valve body, has guaranteed the quick convenient of valve gap 5 switching.

Please refer to fig. 1, the inner wall of the valve body 1 is sprayed with the anti-rust coating, and the anti-rust coating on the inner wall of the valve body improves the corrosion resistance inside the valve body 1, reduces the corrosion speed inside the valve body 1, and prolongs the service life of the valve body 1.

Please refer to fig. 1, the two sides of the valve body 1 are both provided with the connection ports 2, the sealing rings are installed inside the two connection ports 2, the connection ports 2 on the two sides are convenient for users to use and connect the valve body 1, and meanwhile, the sealing rings ensure the sealing performance of the valve body 1 during use and connection.

Please refer to fig. 1, the valve cap 5 and the valve body 1 form an elastic rotation structure through the torsion spring 4, and the valve cap 5 is movably connected with the rotation column 3, and the valve cap 5 can rotate around the rotation column 3 to be opened under the elastic force of the torsion spring 4, so that the valve cap 5 is opened more automatically and efficiently, and is convenient for the user to use.

Please refer to fig. 1, the valve cap 5 is disposed in a spherical shape, the size of the valve cap 5 matches the valve body 1, and the valve cap 5 is disposed in a spherical shape, so as to facilitate opening and closing and improve the deformation resistance of the valve cap 5.

Please refer to fig. 2, the sealing gasket 6 is disposed in a ring shape, the sealing gasket 6 is fixedly connected with the valve body 1, and the sealing gasket 6 is disposed at a joint of the valve cover 5 and the valve body 1, so as to ensure the sealing performance of the valve body 1 when the valve cover 5 is closed.

Please refer to fig. 3, the locking rod 8 is connected to the opening 7 by a screw, and the locking rod 8 is parallel to the valve cap 5, and the valve cap 5 is locked by the screw-fit of the locking rod 8 and the opening 7, so as to ensure the stability of the closing state of the valve cap 5.

The working principle is as follows: when valve gap 5 need be opened, manual unscrewing check lock lever 8, valve gap 5 can be opened around rotating 3 rotatory bounces of post under torsional spring 4's elastic force, make the valve body open, sealed pad 6 sets up the junction at valve gap 5 and valve body 1, the leakproofness of valve body 1 when valve gap 5 is closed has been guaranteed, torsional spring 4's setting, make opening more automation and high efficiency of valve gap 5, and the user need not with the help of external instrument, time saving and labor saving, spherical valve gap 5 compressive capacity is strong simultaneously, it is difficult because of deformation and valve body 1 card die, the quick convenience of valve gap 5 switching has been guaranteed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A check valve structure for a vacuum pump, comprising a valve body (1), characterized in that: the outside of valve body (1) is provided with connector (2), rotation post (3) are installed at the top of valve body (1), the outside of rotating post (3) is provided with torsional spring (4), the externally mounted of torsional spring (4) has valve gap (5), the back connection of valve gap (5) has sealed pad (6), trompil (7) have been seted up to the avris of valve gap (5), check lock lever (8) have been run through to the inside of trompil (7).

2. A check valve structure for a vacuum pump according to claim 1, wherein: the inner wall of the valve body (1) is sprayed with an antirust coating.

3. A check valve structure for a vacuum pump according to claim 1, wherein: the connecting ports (2) are formed in the two sides of the valve body (1), and sealing rings are mounted inside the two connecting ports (2).

4. A check valve structure for a vacuum pump according to claim 1, wherein: the valve cover (5) and the valve body (1) form an elastic rotating structure through the torsion spring (4), and the valve cover (5) is movably connected with the rotating column (3).

5. A check valve structure for a vacuum pump according to claim 1, wherein: the valve cover (5) is arranged in a spherical shape, and the shape and the size of the valve cover (5) are matched with those of the valve body (1).

6. A check valve structure for a vacuum pump according to claim 1, wherein: the sealing gasket (6) is arranged in an annular shape, and the sealing gasket (6) is fixedly connected with the valve body (1).

7. A check valve structure for a vacuum pump according to claim 1, wherein: the locking rod (8) is in threaded connection with the opening (7), and the locking rod (8) and the valve cover (5) are arranged in parallel.