CN216867561U

CN216867561U - Novel plug valve

Info

Publication number: CN216867561U
Application number: CN202122699714.4U
Authority: CN
Inventors: 史成军; 马伟云; 施培军; 沈楠楠
Original assignee: Yancheng Shenhua Machinery Manufacturing Co ltd
Current assignee: Yancheng Shenhua Machinery Manufacturing Co ltd
Priority date: 2021-11-06
Filing date: 2021-11-06
Publication date: 2022-07-01
Anticipated expiration: 2031-11-06

Abstract

The utility model relates to the technical field of plug valves, in particular to a novel plug valve, which comprises: the top of the valve body is provided with a hand wheel, and a cock is inserted into a slot on the top of the valve body; the sealing element comprises a mounting element, a limiting element and a fixing element; and a reinforcement; the beneficial effects are that: the needle bearing provided by the utility model is arranged outside the cock, so that the cock can rotate more smoothly, and the needle bearing reduces the friction force between the cock and the rubber sealing ring; according to the needle bearing provided by the utility model, the first sealing ring and the second sealing ring are arranged at the top and the bottom of the needle bearing, the needle bearing is not sealed, the first sealing ring and the second sealing ring are added, the needle bearing is subjected to double sealing, after lubricating oil is injected into the needle bearing, the friction of the needle bearing can be reduced, the packing sealing is also achieved, the first sealing ring and the second sealing ring are in a full state, and the sealing property is enhanced.

Description

Novel plug valve

Technical Field

The utility model relates to the technical field of plug valves, in particular to a novel plug valve.

Background

The plug valve is a closure member or a plunger-shaped rotary valve, and is opened or closed by rotating 90 degrees to enable a passage port on the plug valve to be communicated with or separated from a passage port on the valve body;

in the prior art, the plug cock of the plug valve is externally sealed by the rubber sealing ring, so that the plug cock is difficult to rotate, and after the plug cock is used for a long time, the rubber sealing ring is easily abraded, and the sealing effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a novel plug valve that solves the problems set forth above in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel plug valve, comprising:

the top of the valve body is provided with a hand wheel, and a cock is inserted into a slot on the top of the valve body;

the sealing element comprises a mounting element, a limiting element and a fixing element; and

the reinforcing piece is arranged in a slot formed in the valve body.

Preferably, the installed part includes that the axle is with circlip, slips and union cap, and the slips has two sets of cover to establish in the outside of valve body after assembling, and the axle is established in the outside of two sets of slips with circlip and is fixed the slips, and the union cap is installed in the outside of slips.

Preferably, the limiting part comprises a gland and a third sealing ring, the gland is sleeved outside the cock, and the third sealing ring is sleeved in a ring groove formed in the outside of the cock.

Preferably, the fixing member comprises a seal bush, a cylindrical pin and a gasket, the seal bush is arranged outside the cock, the cylindrical pin is arranged at the bottom of the seal bush, and the gasket is arranged on the side wall of the seal bush.

Preferably, the reinforcing part comprises a first sealing ring, a second sealing ring and a needle bearing, the needle bearing is sleeved outside the faucet, the first sealing ring and the second sealing ring are sleeved in a ring groove formed outside the faucet, the first sealing ring is located at the top of the needle bearing, and the second sealing ring is located at the bottom of the needle bearing.

Preferably, the needle bearing is provided with a fine bearing inside, so that the needle bearing is not sealed, and a sealing area formed by the first sealing ring at the top and the second sealing ring at the bottom of the needle bearing is filled with lubricating oil except for the installation of the needle bearing, so that a sealed space formed by the first sealing ring and the second sealing ring is in a full state.

Compared with the prior art, the utility model has the beneficial effects that:

1. the needle bearing provided by the utility model is arranged outside the cock, so that the cock can rotate more smoothly, and the needle bearing reduces the friction force between the cock and the rubber sealing ring;

2. according to the needle bearing provided by the utility model, the first sealing ring and the second sealing ring are arranged at the top and the bottom of the needle bearing, the needle bearing is not sealed, the first sealing ring and the second sealing ring are added, the needle bearing is subjected to double sealing, after lubricating oil is injected into the needle bearing, the friction of the needle bearing can be reduced, the packing sealing is also achieved, the first sealing ring and the second sealing ring are in a full state, and the sealing property is enhanced.

Drawings

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

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is an enlarged schematic view of the structure at C in fig. 1.

In the figure: the valve comprises a valve body 1, a hand wheel 2, a cylindrical pin 3, a first sealing ring 4, a second sealing ring 5, a cock 6, a needle bearing 7, a sealing lining 8, a gasket 9, a shaft elastic retainer ring 10, a slip 11, a union cap 12, a third sealing ring 13 and a gland 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a novel plug valve, comprising: the top of the valve body 1 and the top of the valve body 1 are provided with hand wheels 2, and a cock 6 is inserted in a groove at the top of the valve body 1;

the sealing element comprises a mounting element, a limiting element and a fixing element, wherein the mounting element comprises an elastic retainer ring 10 for a shaft, slips 11 and a union cap 12, two groups of slips 11 are sleeved outside the valve body 1 after being assembled, the elastic retainer ring 10 for the shaft is sleeved outside the two groups of slips 11 to fix the slips 11, the union cap 12 is installed outside the slips 11, the two groups of slips 11 are combined and then fixed outside the valve body 1 through the elastic retainer ring 10 for the shaft, and the valve body 1 can be installed on other structures through the union cap 12;

the limiting piece comprises a gland 14 and a third sealing ring 13, the gland 14 is sleeved outside the cock 6, the third sealing ring 13 is sleeved in a ring groove formed outside the cock 6, the gland 14 fixes the cock 6 inside the valve body 1, and the third sealing ring 13 seals the gland 14 and the groove formed inside the valve body 1;

the fixing piece comprises a sealing bush 8, a cylindrical pin 3 and a gasket 9, the sealing bush 8 is sleeved outside the plug cock 6, the cylindrical pin 3 is installed at the bottom of the sealing bush 8, the gasket 9 is installed on the side wall of the sealing bush 8, the sealing bush 8 is fixed inside the valve body 1 through the cylindrical pin 3 and the gasket 9, and the plug cock 6 is located inside the two groups of sealing bushes 8 and rotates;

the reinforcing part is arranged in a groove formed in the valve body 1 and comprises a first sealing ring 4, a second sealing ring 5 and a needle bearing 7, the needle bearing 7 is sleeved outside the cock 6, the first sealing ring 4 and the second sealing ring 5 are sleeved in an annular groove formed in the outside of the cock 6, the first sealing ring 4 is positioned at the top of the needle bearing 7, the second sealing ring 5 is positioned at the bottom of the needle bearing 7, the two groups of the first sealing ring 4, the second sealing ring 5 and the needle bearing 7 are respectively sleeved outside the cock 6, the first sealing ring 4 and the second sealing ring 5 form a closed space, the needle bearing 7 is arranged in the closed space, and a bearing is arranged in the needle bearing 7, so that the cock 6 can rotate more smoothly;

the needle bearing 7 is internally provided with a fine bearing, so the needle bearing 7 is not sealed, a sealing area formed by the first sealing ring 4 at the top of the needle bearing 7 and the second sealing ring 5 at the bottom of the needle bearing 7 is provided, except for the installation of the needle bearing 7, lubricating oil is injected into the needle bearing, so that the first sealing ring 4 and the second sealing ring 5 are in a full state when forming a closed space, the needle bearing 7 is arranged in the closed space, the bearing is arranged in the needle bearing 7, the rotation of the cock 6 is smoother, the needle bearing 7 is made of metal, the service life can be prolonged, the lubricating oil is added into the closed space of the first sealing ring 4 and the second sealing ring 5, so that the closed space is in the full state, the friction of the bearing in the needle bearing 7 can be reduced, and the sealing can be more effectively carried out.

The working principle is as follows: in actual use, two sets of slips 11 are combined and then fixed outside the valve body 1 through the elastic retainer ring 10 for the shaft, the valve body 1 can be installed on other structures through the union cap 12, the cock 6 rotates through the hand wheel 2, the cock 6 plays a role of opening and closing in the valve body 1, the sealing bush 8 is fixed inside the valve body 1 through the cylindrical pin 3 and the gasket 9, the cock 6 is positioned inside the two sets of sealing bushes 8 and rotates, the cock 6 is fixed inside the valve body 1 through the gland 14, the third sealing ring 13 seals the gland 14 and the groove inside the valve body 1, the two sets of first sealing ring 4, the second sealing ring 5 and the needle bearing 7 are respectively sleeved outside the cock 6, the first sealing ring 4 and the second sealing ring 5 form a closed space, the needle bearing 7 is arranged in the closed space, the bearing is arranged inside the needle bearing 7, so that the rotation of the cock 6 is smoother, and the needle bearing 7 is made of metal, can increase of service life, at the inside lubricating oil that adds of the airtight space of first sealing washer 4 and second sealing washer 5 for airtight space is in the filling state, can enough reduce the friction of 7 internal bearings of bearing, can more effectually seal again.

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

Claims

1. A novel plug valve is characterized in that: the novel plug valve comprises:

the top of the valve body (1) and the top of the valve body (1) are provided with hand wheels (2), and a cock (6) is inserted into a groove at the top of the valve body (1);

the reinforcing piece is arranged in a groove formed in the valve body (1).

2. A novel plug valve according to claim 1, characterised in that: the installed part includes that the axle establishes the outside at valve body (1) with circlip (10), slips (11) and union cap (12) after having two sets of equipment, and the outside of two sets of slips (11) is established with slips (11) to circlip (10) cover for the axle, and the outside at slips (11) is installed in union cap (12).

3. A novel plug valve according to claim 1, characterised in that: the limiting piece comprises a gland (14) and a third sealing ring (13), the gland (14) is sleeved on the outer portion of the cock (6), and the third sealing ring (13) is sleeved in a ring groove formed in the outer portion of the cock (6).

4. A novel plug valve according to claim 1, characterised in that: the fixing piece comprises a sealing liner (8), a cylindrical pin (3) and a gasket (9), the sealing liner (8) is sleeved outside the plug cock (6), the cylindrical pin (3) is installed at the bottom of the sealing liner (8), and the gasket (9) is installed on the side wall of the sealing liner (8).

5. A novel plug valve according to claim 1, characterised in that: the reinforcing part comprises a first sealing ring (4), a second sealing ring (5) and a needle bearing (7), the needle bearing (7) is sleeved outside the cock (6), the first sealing ring (4) and the second sealing ring (5) are sleeved in an annular groove formed in the outside of the cock (6), the first sealing ring (4) is located at the top of the needle bearing (7), and the second sealing ring (5) is located at the bottom of the needle bearing (7).

6. A novel plug valve according to claim 5, characterised in that: the needle roller bearing (7) is internally provided with a fine bearing, so that the needle roller bearing (7) is not sealed, and lubricating oil is injected into a sealing area formed by a first sealing ring (4) at the top and a second sealing ring (5) at the bottom of the needle roller bearing (7) except for the needle roller bearing (7), so that a sealed space formed by the first sealing ring (4) and the second sealing ring (5) is in a full state.