CN217108387U

CN217108387U - Valve casting with high sealing performance

Info

Publication number: CN217108387U
Application number: CN202220691525.4U
Authority: CN
Inventors: 刘建
Original assignee: Zhejiang Lida Valve Co ltd
Current assignee: Zhejiang Lida Valve Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-08-02
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a high-tightness valve casting, which belongs to the field of valve castings and comprises a valve body, wherein the upper end of the valve body is provided with a valve connecting end, the left end of the valve body is provided with a first pipeline connecting end, a sealing sleeve is sleeved on the surfaces of the valve connecting end and a connecting pipe of the pipeline connecting end, the sealing sleeve is sleeved at the inner ring part, the end surface part and the outer ring part of the connecting pipe and has the function of ensuring the connecting pipe to have good tightness, meanwhile, a supporting plate is arranged inside the sealing sleeve and has the function of supporting the sealing sleeve to prevent the sealing sleeve from deforming after long-time use and causing the phenomenon of air leakage, meanwhile, the sealing sleeve is fixed by using a sleeving way, the sealing sleeve is convenient to disassemble and replace, and when the valve body is used and is connected with a main valve and a pipeline, a connecting piece is used for connecting and fixing the valve body, the position of the sealing sleeve is also fixed, so that two purposes are achieved, and the use is facilitated.

Description

Valve casting with high sealing performance

Technical Field

The utility model relates to a valve casting field, more specifically say, relate to a valve casting of high leakproofness.

Background

The valve casting is a control part in a pipeline fluid conveying system, and the valve is used for changing the section of a passage and the flowing direction of a medium and has the functions of diversion, stopping, regulation, throttling, non-return, diversion or overflow pressure relief and the like.

The patent application with application number 202021215266.5 relates to a valve casting of high leakproofness, and it has the sealing washer at valve connector and pipeline interface head surface innermost side concave ring surface bottom rigid coupling to guarantee the leakproofness of valve body, but be provided with the inner of connector with the sealing washer, do not set up the surface at the connector, long-time the use, the sealing washer is ageing, do not laminate the connector, phenomena such as gas leakage still can take place, be unfavorable for the use.

SUMMERY OF THE UTILITY MODEL

Problem to exist among the prior art, the utility model aims to provide a valve casting of high leakproofness, it has cup jointed the seal cover at the connecting pipe surface of valve link end and pipe connection end, the seal cover is in the inner circle department of connecting pipe, terminal surface department and outer lane department, the effect that the connecting pipe junction has good leakproofness has been guaranteed, the inside of seal cover is provided with the backup pad simultaneously, support the seal cover has, prevent that the seal cover from using for a long time and taking place to warp, the phenomenon that leads to gas leakage, this seal cover uses the mode of cup jointing to fix simultaneously, it changes to conveniently dismantle it, and use the valve body, when being connected valve body and main valve and pipeline, the connecting piece is when connecting fixedly to the valve body, also fix the position of seal cover, kill two birds with one stone, do benefit to the use.

In order to solve the above problems, the utility model adopts the following technical proposal.

A high-tightness valve casting comprises a valve body, wherein a valve connecting end is arranged at the upper end of the valve body, a first pipeline connecting end is arranged at the left end of the valve body, a second pipeline connecting end is arranged at the right end of the valve body, connecting pipes are fixedly connected to the ends of the valve connecting end, the first pipeline connecting end and the second pipeline connecting end, each connecting pipe is provided with a mounting hole, a sealing sleeve is sleeved on the surface of each connecting pipe, a supporting plate is arranged inside each sealing sleeve, each sealing sleeve is provided with a circular hole, anti-skidding bulges are arranged inside each sealing sleeve and are in contact with the corresponding connecting pipe, each sealing sleeve is sleeved on the surfaces of the corresponding valve connecting end and the corresponding connecting pipe of the corresponding pipeline connecting end, each sealing sleeve is sleeved on the inner ring, the end face and the outer ring of the corresponding connecting pipe, and the function of ensuring that the connecting pipe has good tightness is achieved at the connecting positions is achieved, simultaneously the inside of seal cover is provided with the backup pad, has the support seal cover, prevents that the seal cover from using for a long time and taking place to warp, leads to the phenomenon of gas leakage, and this seal cover uses the mode of cup jointing to fix simultaneously, conveniently dismantles it and changes, and is using the valve body, when being connected valve body and main valve and pipeline, the connecting piece is when connecting fixedly to the valve body, also fixes the position of seal cover, kills two birds with one stone, does benefit to the use.

Further, the mounting hole sets up to circular through-hole, and a connecting pipe is provided with four mounting holes, through the setting of mounting hole, has and passes installed parts such as fastening bolt to use installed parts such as bolts to carry out erection joint's effect to valve body and main valve and pipeline.

Furthermore, the sealing sleeve is sleeved on the inner surface, the outer surface and the end face of the connecting pipe, and the sealing sleeve is sleeved on the inner surface, the outer surface and the end face of the connecting pipe, so that the sealing area is increased, and the sealing effect is enhanced.

Furthermore, the backup pad is located the terminal surface department of seal cover, and the backup pad has the effect of strengthening seal cover terminal surface department intensity, elasticity and anti deformability for when connecting the valve body, can not take place to press the sunken phenomenon that produces the gap with the seal cover, also have simultaneously and guarantee that the seal cover can not take place sunken deformation for long-time the use, lead to the effect of leakproofness reduction phenomenon.

Further, the shape size of circular port is the same with the mounting hole, and the position corresponds with the position of mounting hole, through the setting of circular port, has and passes connecting pieces such as bolt for the setting of seal cover can not appear hindering the effect of valve body installation service behavior.

Compared with the prior art, the utility model has the advantages of:

(1) this scheme has cup jointed the seal cover on the connecting pipe surface of valve link end and pipe connection end, the seal cover is in the inner circle department of connecting pipe, the terminal surface is located and outer lane department, the effect that the connecting pipe junction has good leakproofness has been guaranteed, the inside of seal cover is provided with the backup pad simultaneously, the support seal cover has, prevent that the seal cover from using for a long time and taking place the deformation, the phenomenon that leads to gas leakage, this seal cover uses the mode of cup jointing to fix simultaneously, it changes to make things convenient for it to dismantle, and use the valve body, when being connected valve body and main valve and pipeline, the connecting piece is when connecting fixedly to the valve body, also fix the position of seal cover, kill two birds with one stone, do benefit to the use.

(2) The mounting hole sets up to circular through-hole, and a connecting pipe is provided with four mounting holes, through the setting of mounting hole, has and passes installed parts such as fastening bolt to use installed parts such as bolts to carry out erection joint's effect to valve body and main valve and pipeline.

(3) The sealing sleeve is sleeved on the inner surface, the outer surface and the end face of the connecting pipe, and the sealing sleeve is sleeved on the inner surface, the outer surface and the end face of the connecting pipe, so that the sealing area is increased, and the sealing effect is enhanced.

(4) The backup pad is located the terminal surface department of seal cover, and the backup pad has the effect of strengthening seal cover terminal surface department intensity, elasticity and anti deformability for when connecting the valve body, can not take place to press the sunken phenomenon that produces the gap with the seal cover, also have simultaneously and guarantee that the seal cover can not take place sunken deformation for long-time the use, lead to the effect of leakproofness reduction phenomenon.

(5) The shape size of circular port is the same with the mounting hole, and the position of position and mounting hole corresponds, through the setting of circular port, has and passes connecting pieces such as bolt for the setting of seal cover can not appear hindering the effect of valve body installation use phenomenon.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the installation of the sealing sleeve of the present invention;

FIG. 3 is an enlarged view of the seal cartridge of the present invention;

fig. 4 is an enlarged view of fig. 3 at a.

The reference numbers in the figures illustrate:

1 valve body, 2 valve link ends, 3 first pipeline link ends, 4 second pipeline link ends, 5 connecting pipes, 6 mounting holes, 7 seal covers, 8 backup pads, 9 circular ports, 10 non-slip raised.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, a valve casting with high sealing performance includes a valve body 1, referring to fig. 1-4, a valve connecting end 2 is disposed at an upper end of the valve body 1, the valve connecting end 2 has a function of connecting the valve body 1 with a main valve, a first pipeline connecting end 3 is disposed at a left end of the valve body 1, the first pipeline connecting end 3 and a second pipeline connecting end 4 both have a function of connecting the valve body 1 with a pipeline, a second pipeline connecting end 4 is disposed at a right end of the valve body 1, a connecting pipe 5 is fixedly connected to ends of the valve connecting end 2, the first pipeline connecting end 3 and the second pipeline connecting end 4, the connecting pipe 5 is provided with a mounting hole 6, a sealing sleeve 7 is sleeved on a surface of the connecting pipe 5, the sealing sleeve 7 is made of high temperature and corrosion resistant rubber, the rubber has good elasticity and sealing performance, so that by the arrangement of the sealing sleeve 7, have the sealed effect of the gap seal of sealing valve body 1 and main valve and pipe connection department, the inside of seal cover 7 is provided with backup pad 8, seal cover 7 is provided with circular port 9, the inside of seal cover 7 is provided with non-slip raised 10, non-slip raised 10 and connecting pipe 5 contact, non-slip raised 10 has the frictional force between increase seal cover 7 and the connecting pipe 5 to guarantee that seal cover 7 can stabilize and cup joint the effect at the outer surface of connecting pipe 5.

Referring to fig. 2 and 3, the mounting holes 6 are circular through holes, and one connecting pipe 5 is provided with four mounting holes 6, and mounting members such as fastening bolts are passed through the mounting holes 6, so that the valve body 1, a main valve and a pipeline are mounted and connected by using the mounting members such as bolts, and the sealing sleeve 7 is sleeved on the inner surface, the outer surface and the end surface of the connecting pipe 5, so that the sealing area is increased, and the sealing effect is enhanced.

Please refer to fig. 2 and 3, the support plate 8 is located at the end face of the sealing sleeve 7, the support plate 8 has the function of strengthening the strength of the end face of the sealing sleeve 7, the elasticity and the deformation resistance, so that when the valve body 1 is connected, the phenomenon that the sealing sleeve 7 is extruded to be sunken to generate gaps does not occur, and meanwhile, the sealing sleeve 7 is guaranteed not to be sunken and deformed after being used for a long time, the sealing performance is reduced, the shape and the size of the circular hole 9 are the same as those of the mounting hole 6, and the position corresponds to that of the mounting hole 6, the arrangement through the circular hole 9 has the function of passing through connecting pieces such as bolts, so that the arrangement of the sealing sleeve 7 does not have the function of hindering the installation and use of the valve body 1.

The high-tightness valve casting is characterized in that a sealing sleeve 7 is sleeved on the outer surface of a connecting pipe 5 of a valve connecting end 2, a first pipeline connecting end 3 and a second pipeline connecting end 4, the sealing sleeve 7 is sleeved on the inner surface, the outer surface and the end surface of the connecting pipe 5, the sealing effect is guaranteed due to the arrangement of a large sealing area, meanwhile, a supporting plate 8 is arranged on the end surface of the sealing sleeve 7, the supporting plate 8 has the function of supporting the sealing sleeve 7 and strengthening the strength, elasticity and deformation resistance of the end surface of the sealing sleeve 8, so that the high-tightness valve casting can be used for a long time without generating deformation and depression and reducing the tightness, when the valve body 1 is connected with a main valve and a pipeline, the sealing sleeve 7 cannot be extruded and deformed to influence the tightness, and the fixing sleeve 7 is directly sleeved on the surface of the connecting pipe 5, so that the high-tightness valve casting is convenient to disassemble and replace, simultaneously when using valve body 1, also need not worry seal cover 7 and can take place phenomenons such as removal, rotation, because fasteners such as bolt still have the effect of carrying out restriction fixed to seal cover 7 position when connecting valve body 1 and main valve, pipeline, kill two birds with one stone, do benefit to the use.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. A valve casting of high leakproofness, includes valve body (1), its characterized in that: the valve is characterized in that the upper end of the valve body (1) is provided with a valve connecting end (2), the left end of the valve body (1) is provided with a first pipeline connecting end (3), the right end of the valve body (1) is provided with a second pipeline connecting end (4), the tail ends of the valve connecting end (2), the first pipeline connecting end (3) and the second pipeline connecting end (4) are fixedly connected with a connecting pipe (5), the connecting pipe (5) is provided with a mounting hole (6), a sealing sleeve (7) is sleeved on the surface of the connecting pipe (5), a supporting plate (8) is arranged inside the sealing sleeve (7), the sealing sleeve (7) is provided with a circular hole (9), anti-skid protrusions (10) are arranged inside the sealing sleeve (7), and the anti-skid protrusions (10) are in contact with the connecting pipe (5).

2. A high-leak-tightness valve casting according to claim 1, wherein: the mounting holes (6) are circular through holes, and one connecting pipe (5) is provided with four mounting holes (6).

3. A high-leak-tightness valve casting according to claim 1, wherein: the sealing sleeve (7) is sleeved on the inner surface, the outer surface and the end surface of the connecting pipe (5).

4. A high-leak-tightness valve casting according to claim 1, wherein: the support plate (8) is positioned at the end face of the sealing sleeve (7).

5. A high-leak-tightness valve casting according to claim 1, wherein: the shape and size of the circular hole (9) are the same as those of the mounting hole (6), and the position of the circular hole corresponds to that of the mounting hole (6).