CN215110894U

CN215110894U - Valve shaft sealing device

Info

Publication number: CN215110894U
Application number: CN202120725911.6U
Authority: CN
Inventors: 刘庆海; 周行; 殷立波
Original assignee: Guizhou Huaqi Power Co ltd
Current assignee: Sichuan Huayuan Aerodynamic Power Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-10
Anticipated expiration: 2031-04-09

Abstract

The utility model provides a valve shaft sealing device, belong to valve shaft technical field, this valve shaft sealing device, which comprises a valve body, threaded hole is seted up to the upper end of valve body, threaded hole female connection has the turning block, there is the slipmat upper end of turning block, the mounting groove has been seted up to the right-hand member of valve body, the lower inner wall sliding connection of mounting groove has the valve shaft, the first elastic pin of upper end fixedly connected with of valve shaft, the right-hand member fixedly connected with backing ring of valve body, pressure is higher than behind the valve before the valve, through the inclined hole behind the gaseous guide to the valve of revealing before the valve, make the gaseous not to leaking in the valve, make the device use more convenient.

Description

Valve shaft sealing device

Technical Field

The utility model belongs to the technical field of the valve shaft, concretely relates to valve shaft sealing device.

Background

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves for fluid control systems, from the simplest shut-off valves to the most complex valves used in autonomous systems, can be used to control the flow of various types of fluids, such as air, water, steam, corrosive media, slurries, oils, liquid metals, and radioactive media

However, the valve in the prior art has low production and use efficiency and is too slow when water flow for closing the inner wall is assembled and used, the manpower of workers is wasted when the general valve is closed, and the valve is seriously abraded when the valve is opened and closed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve shaft sealing device aims at solving the valve among the prior art and weares and teares comparatively seriously and close the slower problem of valve.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a valve shaft sealing device, includes the valve body, threaded hole has been seted up to the upper end of valve body, screw hole female connection has the turning block, there is the slipmat in the upper end of turning block, the mounting groove has been seted up to the right-hand member of valve body, the lower inner wall sliding connection of mounting groove has the valve shaft, the first elastic pin of upper end fixedly connected with of valve shaft, the right-hand member fixedly connected with backing ring of valve body, the lower extreme fixedly connected with stopper of valve shaft, the upper end sliding connection of backing ring has the second elastic pin, the upper and lower both ends fixedly connected with protective housing of valve body.

As an optimal scheme, two semicircle sleeves of upper end fixedly connected with of valve shaft, two first screw hole has all been seted up at the telescopic upper and lower both ends of semicircle.

As an optimized scheme of the utility model, second inclined hole and first inclined hole have been seted up respectively to the inner wall about the mounting groove.

As an optimal scheme, the right-hand member fixedly connected with closure plate of valve shaft, closure plate fixed connection is in the left inner wall of mounting groove.

As an optimized scheme, the front end fixedly connected with connecting plate of turning block, the second screw hole has been seted up to the front end of connecting plate.

As an optimized proposal of the utility model, the length of the valve shaft is longer than 1.5 times of the valve body.

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

1. in this scheme, when using this device, through tensile valve shaft come control valve front and back pressure differential guarantee shaft seal, there is certain local resistance during valve operation, and pressure is higher than behind the valve before the valve, leads to the valve after the gas of revealing before the valve through the inclined hole, makes the interior gas of valve not to leaking for the device uses more conveniently.

2. In this scheme, through the second screw hole of seting up on the connecting plate, use the screw thread through the screw hole to fix and make the top dwang, the inside rivers of valve are stabilized more, and the lifting surface area of velocity of flow also obtains stably, and then makes more convenient when closing the valve, and is convenient, and the manpower that very big saving staff used, operating time has obtained the saving, and work efficiency and the also straight-line rise of progress.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a first cross-sectional view of the structure of the present invention;

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is a perspective view of the structure of the present invention;

fig. 4 is a second cross-sectional view of the structure of the present invention;

fig. 5 is a second cross-sectional view of the structure of the present invention.

In the figure: 1. a valve body; 2. a protective shell; 3. a valve shaft; 4. a limiting block; 5. a first elastic pin; 6. a backing ring; 7. a second elastic pin; 8. a semicircular sleeve; 9. a blocking plate; 10. a connecting plate; 11. a first inclined hole; 12. and a second inclined hole.

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.

Example 1

Referring to fig. 1-5, the present invention provides the following technical solutions:

the utility model provides a valve shaft sealing device, including valve body 1, threaded hole is seted up to the upper end of valve body 1, screw hole female connection has the turning block, there is the slipmat in the upper end of turning block, the mounting groove has been seted up to the right-hand member of valve body 1, the lower inner wall sliding connection of mounting groove has valve shaft 3, the first elastic pin of upper end fixedly connected with 5 of valve shaft 3, the right-hand member fixedly connected with backing ring 6 of valve body 1, the lower extreme fixedly connected with stopper 4 of valve shaft 3, the upper end sliding connection of backing ring 6 has second elastic pin 7, the upper and lower both ends fixedly connected with protective housing 2 of valve body 1.

The utility model discloses an in the embodiment, through the turning block of 1 upper end of rotary valve body when using valve shaft sealing device, thereby the turning block rotates in the screwed hole and opens and close the valve, thereby rivers or liquid in the control valve, make the valve more convenient when closing, the second screw hole that accessible connecting plate 10 upper ends were seted up when convenient rotation reaches required degree, use the screw thread to fix through the screw hole and make the top dwang, the inside rivers of valve are stabilized more, the lifting surface area of velocity of flow also obtains stably, and then make when closing the valve more convenient, it is convenient, the manpower that very big saving staff used, operating time has obtained the saving, work efficiency and the also straight-line rise of progress.

Specifically, referring to fig. 1, two semicircular sleeves 8 are fixedly connected to the upper end of the valve shaft 3, and first threaded holes are formed in the upper end and the lower end of each of the two semicircular sleeves 8.

In this embodiment: two half round sleeves 8 through 3 upper ends fixed connection of valve shaft fix valve shaft 3 for valve shaft 3 is more stable, and is also more convenient when taking out valve shaft 3 when the work operation, fixes the screw hole of seting up through half round sleeve 8 upper ends.

Specifically, referring to fig. 1, the left and right inner walls of the mounting groove are respectively provided with a second inclined hole 12 and a first inclined hole 11.

In this embodiment: when the valve is closed, the shaft seal is ensured by the front-back pressure difference of the valve through the second inclined hole 12 and the first inclined hole 11, certain local resistance exists when the valve works, the pressure before the valve is higher than the pressure after the valve, and the gas leaked before the valve is guided to the back of the valve through the inclined holes, so that the gas in the valve is not leaked outside.

Specifically, referring to fig. 1, the right end of the valve shaft 3 is fixedly connected with a blocking plate 9, and the blocking plate 9 is fixedly connected to the left inner wall of the mounting groove.

In this embodiment: the valve shaft 3 is fixed on the left inner wall of the mounting groove through the blocking plate 9, and the movement and the position of the valve shaft are more stably limited during the operation of the device.

Specifically referring to fig. 3, a connecting plate 10 is fixedly connected to the front end of the rotating block, and a second threaded hole is formed in the front end of the connecting plate 10.

In this embodiment: the connecting plate 10 is fixedly connected with the front end of the rotating block, and the connecting plate 10 is selectively fixed through a second threaded hole formed in the front end of the connecting plate 10, so that the gas in the valve is changed.

Specifically referring to fig. 2, the length of the valve shaft 3 is longer than 1.5 times of the valve body 1.

In this embodiment: the length of the valve shaft 3 can be selected when the device is used specifically, the diameter of the valve shaft 3 must be longer than that of the valve body 1, so that the working efficiency and the device are better matched, the abrasion degree ratio is lowest, and the service life of the device is prolonged finally.

The utility model discloses a theory of operation and use flow: through rotating the turning block when using, thereby the turning block rotates the pivoted in the screw hole and makes inside velocity of flow adjust, adjust the gaseous direction of the table of taking through the arrow point when own required position, make the degree of opening and shutting of device obtain control, the also very big improvement of precision, when the gas in the valve is placed to needs, control through tensile valve shaft 3 and make the inside atmospheric pressure of device scatter through second inclined hole 12 and first inclined hole 11, thereby the velocity of flow of controlling inside valve, guarantee the shaft seal through pressure differential around the valve, there is certain local resistance during valve operation, pressure before the valve is higher than behind the valve, guide the valve back to the gas of revealing before the valve through the inclined hole, make the valve internal gas not to leak outside, finally make this device can use in a flexible way, the very big reinforcing of the inside gas of control valve.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve shaft sealing device is characterized in that: including valve body (1), threaded hole has been seted up to the upper end of valve body (1), screw hole female connection has the turning block, there is the slipmat in the upper end of turning block, the mounting groove has been seted up to the right-hand member of valve body (1), the lower inner wall sliding connection of mounting groove has valve shaft (3), the first elastic pin of upper end fixedly connected with (5) of valve shaft (3), the right-hand member fixedly connected with backing ring (6) of valve body (1), the lower extreme fixedly connected with stopper (4) of valve shaft (3), the upper end sliding connection of backing ring (6) has second elastic pin (7), the upper and lower both ends fixedly connected with protective housing (2) of valve body (1).

2. The valve shaft seal of claim 1, wherein: the upper end fixedly connected with two semicircle sleeves (8) of valve shaft (3), two first screw hole has all been seted up at the upper and lower both ends of semicircle sleeve (8).

3. The valve shaft seal of claim 2, wherein: and the left and right inner walls of the mounting groove are respectively provided with a second inclined hole (12) and a first inclined hole (11).

4. The valve shaft seal of claim 3 wherein: the right-hand member fixedly connected with closure plate (9) of valve shaft (3), closure plate (9) fixed connection is in the left inner wall of mounting groove.

5. The valve shaft seal of claim 4, wherein: the front end of the rotating block is fixedly connected with a connecting plate (10), and a second threaded hole is formed in the front end of the connecting plate (10).

6. The valve shaft seal of claim 5 wherein: the length of the valve shaft (3) is 1.5 times longer than that of the valve body (1).