CN214037045U

CN214037045U - Valve accessory capable of improving connection tightness

Info

Publication number: CN214037045U
Application number: CN202022563770.0U
Authority: CN
Inventors: 尹建平; 孙军成
Original assignee: Shijiazhuang Senpu Stainless Steel Products Co ltd
Current assignee: Shijiazhuang Senpu Stainless Steel Products Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-08-24
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a valve fitting capable of improving connection tightness, which comprises a valve body, wherein flange plates are arranged at the left end and the right end of the valve body, through holes are arranged in the valve body, a flashboard is arranged in the middle of the through holes, a valve rod is fixedly connected at the top end of the flashboard, a valve cover is connected at the top end of the valve body by a bolt structure, a plurality of bolts with bolt structures vertically penetrate through the edge of the top end of the valve body and the edge of the valve cover in a circular array, nuts are fixedly connected at the upper end and the lower end of each bolt, a sealing gasket a is arranged between the lower surface of the valve cover and the upper surface of the top end of the valve body, and an annular clamp is also fixedly connected between the edge of the top end of the valve body and the edge of the valve cover by the bolt structures, so that the sealing performance of the connection part of the valve body and the valve cover is greatly improved, the valve is convenient to disassemble and have better refittability compared with the prior valve, the cost is low, the design is reasonable, the practicability is high, and the method is suitable for popularization and use.

Description

Valve accessory capable of improving connection tightness

Technical Field

The utility model relates to a valve production technical field specifically is a can improve valve accessories who connects compactedness.

Background

A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate of a medium (liquid, gas, or powder) in a pipe or equipment by flowing or stopping the medium.

The sealing performance of the valve refers to the capability of each sealing part of the valve for preventing medium leakage, and is the most important technical performance index of the valve. The sealing part of the valve has three parts: the contact part between the opening and closing piece and the two sealing surfaces of the valve seat; the matching part of the packing, the valve rod and the packing box; the valve body is connected with the valve cover. Where the former leak is called an internal leak, known as a leak that is not tight, it will affect the ability of the valve to shut off the media. Internal leakage is not allowed for shut-off valves and the like. The latter two leaks are called external leaks, i.e. leakage of medium from the inside of the valve to the outside of the valve. The leakage can cause material loss and environmental pollution, and can also cause accidents in serious cases. For flammable and explosive, toxic or radioactive media, leakage is not allowed, and the valve must have reliable sealing performance.

Most of valves and valve covers of valves produced in the prior art are connected through bolts, and then the sealing performance of the joint of the valve body and the valve cover is realized through additionally installing a sealing gasket a. To this end, we propose a valve fitting that improves the tightness of the connection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can improve the valve accessory of connecting compactness to solve the problem that proposes among the above-mentioned background art.

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

a valve fitting capable of improving connection tightness comprises a valve body, flange plates are arranged at the left end and the right end of the valve body, a through hole is formed in the valve body, a flashboard is arranged in the middle of the through hole, a valve rod is fixedly connected to the top end of the flashboard, a valve cover is connected to the top end of the valve body through a bolt structure, a plurality of bolts with bolt structures vertically penetrate through the edge of the top end of the valve body and the edge of the valve cover in a circular array, nuts are fixedly connected to the upper end and the lower end of each bolt, a sealing gasket a is arranged between the lower surface of the valve cover and the upper surface of the top end of the valve body, the valve body top edge still jointly fixedly connected with annular clamp by bolted construction with valve gap edge, the powerful bonding of annular clamp inner wall has the rubber pad, and the laminating of rubber pad roof lower surface and valve gap edge upper surface mutually, the laminating of rubber pad diapire upper surface and valve body top lower surface mutually, the laminating of rubber pad lateral wall and valve body top lateral wall and valve gap lateral wall homogeneous phase.

As a further aspect of the present invention: annular clamp roof all is circular array with the diapire and is equipped with a plurality of connecting holes a, and every bolt vertically runs through two vertical connecting holes a of counterpointing.

As a further aspect of the present invention: rubber pad roof all is circular array with the diapire and is equipped with a plurality of connecting holes b, and every bolt vertically runs through two connecting holes b of vertical counterpointing.

As a further aspect of the present invention: the rubber pad is the silica gel material.

As a further aspect of the present invention: and a sealing gasket b is also arranged between the lower surface of the valve cover and the upper surface of the top end of the valve body and is positioned on the periphery of the sealing gasket a, and the inner ring wall of the sealing gasket b is attached to the outer ring wall of the sealing gasket a.

As a further aspect of the present invention: the gasket body of the sealing gasket b is provided with a plurality of connecting holes c in a circular array, and each bolt vertically penetrates through a single connecting hole c.

As a further aspect of the present invention: the sealing gasket b is made of silica gel.

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

1. the utility model can be used in cooperation with the annular hoop and the rubber pad, when the sealing gasket a is aged after the utility model is used for a long time, the material is blocked, and compared with the existing valve, the sealing performance of the joint of the valve body and the valve cover is obviously improved;

2. the annular hoop and the rubber pad arranged in the utility model are both fixedly connected at the top edge of the valve body and the edge of the valve cover by the bolt structure for connecting the valve body and the valve cover, so the annular hoop and the rubber pad arranged in the utility model can be disassembled and assembled together with the valve body and the valve cover, thereby achieving the effect of convenient disassembly and assembly of workers and having better refitability compared with the prior valve;

3. the utility model discloses a sealed pad b's that is equipped with in the junction of valve body and valve gap use can work as the utility model discloses when the sealed pad a of long-time use back is ageing, carry out the secondary leaking stoppage to the material, the use of cooperation annular clamp, rubber pad for the material can be by the cubic leaking stoppage, thereby improves the leakproofness of the junction of valve body and valve gap once more, the utility model discloses simple structure, low cost, reasonable in design has higher practicality, suitable using widely.

Drawings

Fig. 1 is a schematic view showing a valve fitting capable of improving connection tightness.

Fig. 2 is a plan view showing a structure of a valve fitting capable of improving connection tightness.

Fig. 3 is an enlarged view of a portion a in fig. 1.

Fig. 4 is an enlarged view of fig. 1 at B.

In the figure: 1. a valve body; 1-1, flange plate; 2. a through hole; 3. a shutter plate; 4. a valve stem; 5. a valve cover; 6. a gasket a; 7. a bolt; 8. a nut; 9. an annular hoop; 9-1, connecting hole a; 10. a rubber pad; 10-1, connecting hole b; 11. a gasket b; 11-1 and a connecting hole c.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-4, a valve fitting for improving connection tightness comprises a valve body 1, flange plates 1-1 are provided at left and right ends of the valve body 1 for facilitating installation of the utility model in a desired pipeline, a through hole 2 is provided inside the valve body 1 for material circulation, a gate plate 3 is provided in the middle of the through hole 2 for blocking the material, thereby achieving the effect of controlling the material circulation in the pipeline, a valve rod 4 is fixedly connected to the top end of the gate plate 3 for controlling the opening degree of the gate plate 3, thereby controlling the material circulation rate, a valve cover 5 is connected to the top end of the valve body 1 by a bolt structure, a plurality of bolts 7 with bolt structures vertically penetrate through the top end edge of the valve body 1 and the valve cover edge of the valve cover 5 in a circular array, nuts 8 are fixedly connected to the upper and lower ends of each bolt 7, thereby the valve cover 5 is fixedly connected to the valve body 1 by the bolt structures, a sealing gasket a6 is arranged between the lower surface of the valve cover 5 and the upper surface of the top end of the valve body 1, which can prevent the leakage of the material from the joint of the valve cover 5 and the valve body 1, the top edge of the valve body 1 and the valve cover edge of the valve cover 5 are fixedly connected with an annular hoop 9 by a bolt structure, the inner wall of the annular hoop 9 is strongly bonded with a rubber gasket 10, the rubber gasket 10 is made of silica gel, the silica gel has better sealing performance and better elasticity, and can be adapted to the clamping force between the valve cover 5 and the valve body 1 brought by the bolt structure, the lower surface of the top wall of the rubber gasket 10 is bonded with the upper surface of the edge of the valve cover 5, the upper surface of the bottom wall of the rubber gasket 10 is bonded with the lower surface of the top end of the valve body 1, and the side wall of the valve cover 5 are bonded, so that when the sealing gasket a6 is aged after the utility model is used for a long time, the rubber gasket 10 strongly bonded with the inner wall of the annular hoop 9 can block the leakage of the material, compared with the existing valve, the sealing performance of the joint of the valve body 1 and the valve cover 5 of the utility model is obviously improved;

the top wall and the bottom wall of the annular hoop 9 are both in a circular array and are provided with a plurality of connecting holes a9-1, each bolt 7 vertically penetrates through two vertically aligned connecting holes a9-1, the top wall and the bottom wall of the rubber pad 10 are both in a circular array and are provided with a plurality of connecting holes b10-1, each bolt 7 vertically penetrates through two vertically aligned connecting holes b10-1, and the structure ensures that the annular hoop 9 and the rubber pad 10 are fixedly connected to the top end edge of the valve body 1 and the edge of the valve cover 5 by the bolt structure for connecting the valve body 1 and the valve cover 5, so the annular hoop 9 and the rubber pad 10 arranged in the valve can be disassembled and assembled together with the valve body 1 and the valve cover 5, thereby achieving the effect of facilitating the disassembly and assembly of workers and assembly and the refitting performance better than the existing valve;

still be equipped with sealed pad b11 between 5 lower surfaces of valve gap and the 1 top upper surface of valve body, sealed pad b11 is located sealed pad a6 peripherally, sealed pad b11 inner ring wall and the laminating of sealed pad a6 outer ring wall mutually, sealed pad b11 fills up the body and is circular array and is equipped with a plurality of connecting holes c11-1, and every bolt 7 is vertical to run through single connecting hole c11-1, sealed pad b11 is the silica gel material, so work as the utility model discloses when sealed pad a6 is ageing after using for a long time, sealed pad b11 can carry out the secondary leaking stoppage to the material, cooperation annular clamp 9, the use of rubber pad 10 for the material can be by the cubic leaking stoppage, thereby improve the leakproofness of the junction of valve body 1 and valve gap 5 once more, the utility model discloses simple structure, low cost, reasonable in design has higher practicality, suitable using widely.

The utility model discloses a theory of operation is: when the utility model is aged by using the sealing gasket a6 for a long time, the material is firstly blocked by the sealing gasket b11 for the second time and then blocked by the rubber gasket 10 which is strongly adhered on the inner wall of the annular hoop 9 for the third time, compared with the prior valve technology, the sealing performance of the joint of the valve body 1 and the valve cover 5 of the utility model is obviously improved, the annular hoop 9 and the rubber pad 10 of the utility model are both fixedly connected with the top edge of the valve body 1 and the edge of the valve cover 5 by the bolt structure connecting the valve body 1 and the valve cover 5, therefore, the annular hoop 9 and the rubber pad 10 arranged in the utility model can be disassembled and assembled together with the valve body 1 and the valve cover 5, thereby reach the effect of the staff's dismouting of being convenient for and have the repacking nature of preferred for current valve, the utility model discloses simple structure, low cost, reasonable in design has higher practicality, suitable using widely.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" 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 by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A valve fitting capable of improving connection tightness comprises a valve body (1), flange plates (1-1) are arranged at the left end and the right end of the valve body (1), a through hole (2) is formed in the valve body (1), a flashboard (3) is arranged in the middle of the through hole (2), a valve rod (4) is fixedly connected to the top end of the flashboard (3), a valve cover (5) is connected to the top end of the valve body (1) through a bolt structure, a plurality of bolts (7) of the bolt structure vertically penetrate through the top end edge of the valve body (1) and the valve cover edge of the valve cover (5) in a circular array, nuts (8) are fixedly connected to the upper end and the lower end of each bolt (7), a sealing gasket a (6) is arranged between the lower surface of the valve cover (5) and the upper surface of the top end of the valve body (1), and is characterized in that the top end edge of the valve cover (5) and the valve cover edge of the valve body are fixedly connected with an annular clamp (9) through the bolt structure, the rubber gasket (10) is bonded on the inner wall of the annular clamp (9) with strong force, the lower surface of the top wall of the rubber gasket (10) is attached to the upper surface of the edge of the valve cover (5), the upper surface of the bottom wall of the rubber gasket (10) is attached to the lower surface of the top end of the valve body (1), and the side wall of the rubber gasket (10) is attached to the side wall of the top end of the valve body (1) and the side wall of the valve cover (5) in a homogeneous phase mode.

2. A valve fitting capable of improving the tightness of connection according to claim 1, characterized in that the top and bottom walls of the annular clamp (9) are provided with a plurality of connection holes a (9-1) in a circular array, and each bolt (7) vertically penetrates through two vertically aligned connection holes a (9-1).

3. The valve fitting capable of improving the connection tightness according to claim 1, wherein the top wall and the bottom wall of the rubber gasket (10) are provided with a plurality of connecting holes b (10-1) in a circular array, and each bolt (7) vertically penetrates through two vertically aligned connecting holes b (10-1).

4. Valve fitting capable of improving the tightness of the connection according to claim 1, characterized in that the rubber gasket (10) is made of silicone.

5. The valve fitting capable of improving the tightness of connection according to claim 1, wherein a sealing gasket b (11) is further disposed between the lower surface of the valve cap (5) and the upper surface of the top end of the valve body (1), the sealing gasket b (11) is located at the periphery of the sealing gasket a (6), and an inner annular wall of the sealing gasket b (11) is attached to an outer annular wall of the sealing gasket a (6).

6. A valve fitting capable of improving connection tightness according to claim 5, characterized in that the gasket b (11) is provided with a plurality of connection holes c (11-1) in a circular array, and each bolt (7) vertically penetrates through a single connection hole c (11-1).

7. The valve fitting capable of improving the tightness of connection according to claim 5, wherein the sealing gasket b (11) is made of silicone.