CN211501648U - Stop valve and valve body thereof - Google Patents
Stop valve and valve body thereof Download PDFInfo
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- CN211501648U CN211501648U CN201921874119.6U CN201921874119U CN211501648U CN 211501648 U CN211501648 U CN 211501648U CN 201921874119 U CN201921874119 U CN 201921874119U CN 211501648 U CN211501648 U CN 211501648U
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Abstract
The utility model relates to a stop valve and valve body thereof, stop valve include valve body and case. Wherein, the valve body includes stainless steel's valve pipe, welds first connecting pipe, second connecting pipe, thread bush and disk seat on the valve pipe. The threaded sleeve is provided with internal threads and is positioned at one end of the valve body, and the valve seat is accommodated at one end, far away from the threaded sleeve, of the valve pipe and forms a sealing step in the valve pipe. Each part of the valve body can be processed and welded independently, so the requirement on the die is lower. Additionally, the threads inside the valve body may be provided by a threaded sleeve and the sealing step may be formed by the valve seat. That is, the inner wall of the valve tube does not need to be machined. The valve pipe can be an existing stainless steel pipe and can be directly cut to the required length. On the other hand, as only welding operation is involved in the processing process of the valve body, and no cutting and milling operation is needed, waste materials are hardly generated, and materials are saved. It can be seen that the cost of the above-described shut-off valve can be significantly reduced.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to stop valve and valve body thereof.
Background
The stop valve is a common throttling element and is widely applied to equipment such as air conditioners, hydraulic mechanisms and the like. Conventional shut-off valves typically include a valve body, a valve spool, and a flange structure for attachment. The valve body is internally provided with a valve port, and the valve core is matched with the valve port, so that the stop valve can be opened and closed.
The valve body of the existing stop valve is generally integrally formed by adopting a brass casting process. The process has high requirements on the die, and more waste materials are generated in the processing process. Thus, the cost of the shutoff valve is high.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a shutoff valve and a valve body thereof with low cost, which solve the problem of high cost of the existing shutoff valve.
A valve body, comprising:
the valve tube is a hollow structure with two open ends, and the side wall of the valve tube is provided with a first communicating hole and a second communicating hole which are communicated with the inside of the valve tube;
the first connecting pipe is butted with the first connecting through hole and welded to the valve pipe;
a second connection pipe butted with the second communication hole and welded to the valve pipe;
the threaded sleeve is accommodated at one end of the valve pipe and welded to the valve pipe; and
the disk seat is the cavity tubular structure of both ends open-ended, the disk seat accept in the valve pipe is kept away from the one end of thread bush and is welded in the valve pipe, the disk seat is in the intraductal sealed step that forms of valve.
In one embodiment, the edge of the first connecting hole is turned outwards to form a first sleeve, and the first connecting pipe is arranged in the first sleeve in a penetrating mode.
In one embodiment, the edge of the second communication hole is folded outwards to form a second sleeve, and the second connecting pipe is arranged in the second sleeve in a penetrating mode.
In one embodiment, the inner wall of the valve seat is formed with an annular projection to form the sealing step within the valve seat.
In one embodiment, the edge of the valve seat facing the opening of the threaded sleeve is recessed inward to form a guide slope extending along the circumferential direction of the opening of the valve seat.
In one embodiment, the valve further comprises a connecting flange, wherein the connecting flange is positioned at one end, provided with the valve seat, of the valve pipe and is welded with the valve pipe.
In one embodiment, the valve seat extends out of the valve pipe, and the connecting flange is sleeved on the part of the valve seat extending out of the valve pipe.
In one embodiment, the valve further comprises an extension pipe with two open ends, and one end of the extension pipe is arranged in the valve seat in a penetrating mode and welded with the valve seat.
In one embodiment, the first connection pipe, the second connection pipe, the valve seat, the threaded sleeve, the connection flange, and the extension pipe are stainless steel members.
A shut-off valve comprising:
a valve body as described in any of the above preferred embodiments; and
and the valve core comprises a head part and a valve rod with an external thread, the valve rod penetrates through the thread sleeve and is screwed with the thread sleeve, and the valve rod rotates to drive the head part to be close to or far away from the sealing step.
Above-mentioned stop valve and valve body, each part of valve body can process the rewelding alone, so the requirement to the mould is lower. Additionally, the threads inside the valve body may be provided by a threaded sleeve and the sealing step may be formed by the valve seat. That is, the inner wall of the valve tube does not need to be machined. The valve pipe can be an existing stainless steel pipe and can be directly cut to the required length. On the other hand, as only welding operation is involved in the processing process of the valve body, and no cutting and milling operation is needed, waste materials are hardly generated, and materials are saved. It can be seen that the cost of the above-described shut-off valve can be significantly reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a stop valve according to a preferred embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the valve body of the shut-off valve of FIG. 1;
fig. 3 is a schematic structural view of a valve tube in the valve body shown in fig. 2.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention provides a stop valve 10 and a valve body 100. The shutoff valve 10 includes a valve body 100 and a valve body 200. The valve body 100 accommodates the valve body 200, and functions to open and close the shutoff valve 10.
Referring to fig. 2 and 3, the valve body 100 includes a valve tube 110, a first connection tube 120, a second connection tube 130, a threaded sleeve 140 and a valve seat 150.
The valve tube 110 has a hollow structure with both ends open. Specifically, the valve tube 110 may have a circular tube shape. The side wall of the valve tube 110 is opened with a first communication hole 111 and a second communication hole 112 communicating with the inside of the valve tube 110. The first and second communication holes 111 and 112 are also generally circular holes, and can be formed by punching, cutting, or the like.
The valve tube 110 is made of stainless steel, and therefore, is lower in cost compared to brass. Moreover, the valve tube 110 may be directly manufactured by using a stainless steel tube of an existing specification, and a desired length is cut and perforated. Therefore, the materials are easy to obtain.
The first connection pipe 120 and the second connection pipe 130 are butted against the first connection hole 111 and the second connection hole 112, respectively, and welded to the valve pipe 110. The first connecting pipe 120 and the second connecting pipe 130 are required to match the shapes of the first communicating hole 111 and the second communicating hole 112, and are generally circular tubular structures. In order to ensure the reliability of welding, in the present embodiment, the first connecting tube 120 and the second connecting tube 130 are both made of stainless steel, and therefore, the material of the first connecting tube and the material of the second connecting tube are the same as that of the valve tube 110.
The first connecting line 120 forms a filling channel of the shut-off valve 10, in which a valve core (not shown) can be arranged. The second connection pipe 130 is engaged with a cavity of a part of the valve pipe 110 to form a fluid passage. The fluid flows along the fluid passage, and the opening at the end of the second connection pipe 130 may serve as an inlet or an outlet of the fluid passage.
In this embodiment, the edge of the first connection hole 111 is folded outwards to form a first sleeve 1112, and the first connection pipe 120 is inserted into the first sleeve 1112.
Specifically, the first communication hole 111 and the first sleeve 1112 can be formed on the sidewall of the valve tube 110 by stamping, and no waste material is generated. In one aspect, the first sleeve 1112 may provide a pre-secure function to the first connector 120 to facilitate stability during the welding process. On the other hand, the first sleeve 1112 can also fix the first connecting pipe 120 in the transverse direction, so as to prevent the weld joint between the first connecting pipe 120 and the valve pipe 110 from being cracked due to excessive transverse acting force, and improve the reliability of the stop valve 10.
Further, in the present embodiment, the edge of the second communication hole 112 is folded outward to form a second sleeve 1122, and the second connection pipe 130 is inserted into the second sleeve 1122. The second sleeve 1122 is similar to the first sleeve 1112 in the forming manner and function, and thus is not described herein again.
The threaded sleeve 140 is received in one end of the valve tube 110 and welded to the valve tube 110. The outer wall profile of the threaded sleeve 140 matches the inner wall profile of the valve tube 110, so that the two fit better. In order to ensure the reliability of welding, in the present embodiment, the threaded sleeve 140 is also made of stainless steel, and is made of the same material as the valve tube 110.
The threaded sleeve 140 is internally threaded. Further, the valve cartridge 200 includes a stem 210 and a head 220, and the stem 121 has an external thread. The valve stem 210 may be threaded into the threaded sleeve 140. The valve stem 210 rotates to move the head 220 along the axial direction of the valve tube 110.
The valve seat 150 is a hollow cylindrical structure with two open ends, and the valve seat 150 is accommodated in one end of the valve tube 110 far away from the thread bush 140 and welded to the valve tube 110. The valve seat 150 conforms to the shape of the valve tube 110, is generally cylindrical, and is disposed coaxially with the valve tube 110. In order to ensure the reliability of welding, in the present embodiment, the valve seat 150 is also made of stainless steel, and therefore, is made of the same material as the valve tube 110.
Further, the valve seat 150 forms a sealing step 151 within the valve tube 110. In the present embodiment in particular, the inner wall of the valve seat 150 is formed with an annular protrusion 153 to form a sealing step 151 within the valve seat 150. When the valve stem 210 moves the head 220 in the axial direction of the valve tube 110, the head 220 may approach or be away from the sealing step 151. The head 220 abuts against the sealing step 151, and the shut valve 10 is closed.
Specifically, in the present embodiment, the opening edge of the valve seat 150 toward the end of the threaded sleeve 140 is recessed inward to form a guide slope 155 extending in the circumferential direction of the opening of the valve seat 150.
The guide slope 155 may be obtained by grinding and cutting the edge of the opening of the valve seat 150, and the guide slope 155 serves to guide the head 220 of the valve element 200 to the sealing step 151. Therefore, the head 220 is prevented from being stuck at the joint of the valve tube 110 and the valve seat 150, thereby ensuring the reliability of the shut valve 10.
It can be seen that the threads on the interior of the valve body 100 can be provided by the threaded sleeve 140 and the sealing step 151 can be formed by the valve seat 150. Therefore, the inner wall of the valve tube 110 does not need to be cut and milled to obtain the thread and the step, and waste materials are not generated. According to the model of the stop valve 10, a stainless steel pipe with a corresponding specification is selected. And then, directly intercepting the required length and punching. On the other hand, each part of the valve body 100 is separately processed and then welded and assembled. Compared with an integrally formed casting mode, the requirement on the mold is lower. Therefore, the cost of the shutoff valve 10 can be significantly reduced.
In addition, the valve body 100 processed by adopting the assembly mode has small processing deformation and no stress concentration phenomenon, so the valve body is not easy to crack.
In this embodiment, the valve body 100 further includes a connection flange 160, and the connection flange 160 is located at one end of the valve pipe 110 where the valve seat 150 is provided and is welded to the valve pipe 110.
The attachment flange 160 is used to secure the shut-off valve 10 to other equipment. Since the connection flange 160 is connected to the valve tube 110 by welding. Therefore, the flexibility of the connection flange 160 is enhanced, and the connection flanges 160 of different shapes and structures can be welded according to requirements, so that customization is convenient.
To improve the reliability of the welding, the connecting flange 160 is also a stainless steel member.
Further, in the present embodiment, the valve seat 150 partially extends out of the valve pipe 110, and the connecting flange 160 is sleeved on the portion of the valve seat 150 extending out of the valve pipe 110.
When welding the connection flange 160, the connection flange 160 may be first fitted over the valve seat 150, and the connection flange 160 may be brought into contact with the end surface of the valve tube 110. Thus, the attachment flange 160 may be pre-secured to remain stable during the welding process.
In this embodiment, the valve body 100 further includes an extension pipe 170 with two open ends, and one end of the extension pipe 170 is inserted into the valve seat 150 and welded to the valve seat 150.
Specifically, the extension pipe 170 may increase the protruding length of the valve body 110, thereby facilitating communication between the shut-off valve 10 and other pipes. During assembly, the extension pipe 170 may abut against the annular protrusion 153 to achieve axial spacing, and then be welded to the valve seat 150. To ensure reliability of the welding, the extension pipe 170 is also a stainless steel member.
In the stop valve 10 and the valve body 100 thereof, each part of the valve body 100 can be processed and welded separately, so the requirement on the mold is low. Additionally, the threads on the interior of the valve body 100 may be provided by a threaded sleeve 140 and the sealing step may be formed by a valve seat 150. That is, the inner wall of the valve tube 110 does not need to be machined. The valve tube 110 may be made of an existing stainless steel tube and may be cut to a desired length. On the other hand, since only the welding operation is involved in the machining process of the valve body 100 without performing the milling operation, there is almost no waste generated, thereby saving materials. It can be seen that the cost of the shut-off valve 10 described above can be significantly reduced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A valve body, comprising:
the valve tube is a hollow structure with two open ends, and the side wall of the valve tube is provided with a first communicating hole and a second communicating hole which are communicated with the inside of the valve tube;
the first connecting pipe is butted with the first connecting through hole and welded to the valve pipe;
a second connection pipe butted with the second communication hole and welded to the valve pipe;
the threaded sleeve is accommodated at one end of the valve pipe and welded to the valve pipe; and
the disk seat is the cavity tubular structure of both ends open-ended, the disk seat accept in the valve pipe is kept away from the one end of thread bush and is welded in the valve pipe, the disk seat is in the intraductal sealed step that forms of valve.
2. The valve body as claimed in claim 1, wherein the edge of the first connecting hole is folded outwards to form a first sleeve, and the first connecting pipe is inserted into the first sleeve.
3. The valve body as claimed in claim 2, wherein the edge of the second communication hole is folded outwards to form a second sleeve, and the second connection pipe is inserted into the second sleeve.
4. The valve body as claimed in claim 1, wherein an inner wall of the valve seat is formed with an annular protrusion to form the sealing step in the valve seat.
5. The valve body as claimed in claim 4, wherein an opening edge of the valve seat toward an end of the threaded sleeve is recessed inward to form a guide slope extending in a circumferential direction of an opening of the valve seat.
6. The valve body of claim 1, further comprising a connecting flange located at an end of the valve tube where the valve seat is located and welded to the valve tube.
7. The valve body as claimed in claim 6, wherein the valve seat extends partially through the valve tube, and the connecting flange is disposed around the portion of the valve seat extending through the valve tube.
8. The valve body as claimed in claim 6, further comprising an extension pipe with two open ends, wherein one end of the extension pipe is inserted into the valve seat and welded with the valve seat.
9. The valve body of claim 8, wherein the first connecting tube, the second connecting tube, the valve seat, the threaded sleeve, the connecting flange, and the extension tube are stainless steel components.
10. A shut-off valve, comprising:
a valve body as claimed in any one of claims 1 to 9; and
and the valve core comprises a head part and a valve rod with an external thread, the valve rod penetrates through the thread sleeve and is screwed with the thread sleeve, and the valve rod rotates to drive the head part to be close to or far away from the sealing step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921874119.6U CN211501648U (en) | 2019-11-01 | 2019-11-01 | Stop valve and valve body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921874119.6U CN211501648U (en) | 2019-11-01 | 2019-11-01 | Stop valve and valve body thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501648U true CN211501648U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921874119.6U Active CN211501648U (en) | 2019-11-01 | 2019-11-01 | Stop valve and valve body thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023093424A1 (en) * | 2021-11-23 | 2023-06-01 | 浙江盾安人工环境股份有限公司 | Stop valve, machining method, and assembly method |
| WO2023109957A1 (en) * | 2021-12-18 | 2023-06-22 | 浙江盾安人工环境股份有限公司 | Stop valve |
-
2019
- 2019-11-01 CN CN201921874119.6U patent/CN211501648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023093424A1 (en) * | 2021-11-23 | 2023-06-01 | 浙江盾安人工环境股份有限公司 | Stop valve, machining method, and assembly method |
| WO2023109957A1 (en) * | 2021-12-18 | 2023-06-22 | 浙江盾安人工环境股份有限公司 | Stop valve |
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