CN111503286A - Small-caliber integrated butterfly valve structure and assembling method thereof - Google Patents
Small-caliber integrated butterfly valve structure and assembling method thereof Download PDFInfo
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- CN111503286A CN111503286A CN202010488178.0A CN202010488178A CN111503286A CN 111503286 A CN111503286 A CN 111503286A CN 202010488178 A CN202010488178 A CN 202010488178A CN 111503286 A CN111503286 A CN 111503286A
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- valve
- sealing structure
- valve rod
- butterfly valve
- valve body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to a small-caliber integrated butterfly valve structure and an assembling method thereof, belonging to the field of valves. The technical scheme is as follows: the integral valve body (1) is provided with a flow passage (5) and a valve rod mounting hole (13) which are integrally processed parts; the butterfly valve plate (2) is positioned in the sealing structure (3) and is arranged in the overflowing channel (5) of the integrated valve body (1) together, the integrated valve body (1), the butterfly valve plate (2) and the sealing structure (3) are combined together, and the valve rod (7) positions the butterfly valve plate and the sealing structure in the overflowing channel through the valve rod mounting hole (13). The invention has the beneficial effects that: the integral valve body is integrally processed, most processing procedures can be finished under the working condition of one-time processing equipment clamping, the consistency of products is improved, and the dimensional accuracy is ensured; the valve body is not provided with other installation parts, the assembly is convenient, the assembly workload is reduced, the assembly difficulty is simplified, the assembly efficiency is improved, and the part cost is reduced.
Description
Technical Field
The invention relates to a small-caliber integrated butterfly valve structure and an assembling method thereof, which are used for controlling the flow control of a flowing medium, in particular to the flow control of liquid or gas, and belong to the technical field of valve structures.
Background
At present, the existing valve structure, especially the small-caliber valve, adopts a valve body split type structure, and a butterfly valve is not applied to the field of the small-caliber valve, wherein the small-caliber valve refers to a valve with the inner diameter of a measuring pipe section less than or equal to 40 mm. Common implementations are: 1. the valve body and the valve end cover are in a threaded two-body connection mode, such as a pressure measuring ball valve of Chinese patent No. CN 201420719224; 2. the valve body, the sealing element and the end cover are in a three-body connection form, such as an all-welded steel ball valve of Chinese patent No. CN 201920722816.3.
The valve structure has the defects of high processing difficulty, high processing cost, large number of parts, high assembly precision, large damage risk of the valve in the use process and the like in manufacturing, assembling and using.
Disclosure of Invention
The invention aims to provide a small-caliber integrated butterfly valve structure and an assembling method thereof, which are integrally machined, formed and assembled, have simple structure, convenient assembly, reliable positioning and few components and solve the problems in the background art.
The technical scheme of the invention is as follows:
a small-caliber integrated butterfly valve structure comprises an integrated valve body, a butterfly valve plate, a sealing structure and a valve rod, wherein the integrated valve body is provided with a flow passage and a valve rod mounting hole which are integrally machined parts; the butterfly valve plate is positioned in the sealing structure and is arranged in the overflowing channel of the integral valve body together, the integral valve body, the butterfly valve plate and the sealing structure are combined together, and the valve rod positions the butterfly valve plate and the sealing structure in the overflowing channel through the valve rod mounting hole.
The integral valve body is of an integral structure, and the integral valve body does not have other assembly parts. The valve rod mounting hole is communicated with the overflowing channel, the central line of the valve rod mounting hole is perpendicular to the central line of the overflowing channel, the overflowing channel on the integral valve body is a cylindrical through hole, the inner diameter of the middle part of the overflowing channel is reduced, and the valve rod mounting hole is located at the position where the inner diameter of the middle part of the overflowing channel is reduced.
The butterfly valve plate is assembled in the overflowing channel of the integral valve body together with the sealing mechanism and is assembled with the integral valve body into a whole.
The outer edge of the sealing structure is provided with an annular groove, a sealing ring is arranged in the annular groove, and the sealing ring seals the sealing structure and the inner wall of the integral valve body.
A blocking step is arranged in the overflowing channel of the integral valve body, one side surface of the sealing structure is clamped on the blocking step, and the other side surface of the sealing structure is fixed through a fixing element; the butterfly valve block and the sealing structure are assembled in the overflowing channel of the integral valve body, one side face of the sealing structure is clamped on the blocking step, the retaining ring is clamped in the clamping groove in the inner wall of the overflowing channel, the retaining ring is tightly attached to the other side face of the sealing structure, and the butterfly valve block and the sealing structure are fixed in the overflowing channel through the blocking step and the retaining ring.
And a shared valve rod channel is arranged on the butterfly valve plate and the sealing structure, the central line of the valve rod channel and the central line of a valve rod mounting hole in the integral valve body are positioned on the same straight line, and the valve rod assembles and positions the integral valve body, the butterfly valve plate and the sealing structure through the valve rod mounting hole and the valve rod channel.
The valve rod is provided with a limiting surface for limiting the butterfly valve plate, and a bearing surface which can be matched with the limiting surface on the valve rod is arranged in a valve rod channel of the butterfly valve plate; through the matching of the limiting surface and the bearing surface, the valve rod rotates to drive the butterfly valve plate to rotate along with the butterfly valve plate.
The valve rod positioning groove is positioned on the central line of the valve rod mounting hole and used for positioning the valve rod in the valve rod channel. The valve rod positioning groove is not communicated with the outer wall of the integral valve body, and the outer wall of the integral valve body protrudes out of the inner surface and the outer surface of the integral valve body.
An assembling method of a small-caliber integrated butterfly valve structure comprises the following steps:
manufacturing an integral valve body, wherein the integral valve body is provided with a flow passage and a valve rod mounting hole and is an integrally processed component; the butterfly valve plate is arranged in the sealing structure and is arranged in the overflowing channel of the integral valve body together, the integral valve body, the butterfly valve plate and the sealing structure are combined together to be assembled into a whole, and the butterfly valve plate and the sealing structure are positioned in the overflowing channel through the valve rod mounting hole by the valve rod to complete assembly.
A blocking step is arranged in the overflowing channel of the integral valve body, one side surface of the sealing structure is clamped on the blocking step after the sealing structure is pushed into the overflowing channel, and the other side surface of the sealing structure is fixed through a fixing element; the butterfly valve block and the sealing structure are assembled in the overflowing channel of the integral valve body, one side face of the sealing structure is clamped on the blocking step, the blocking ring is pushed into the overflowing channel and clamped in the clamping groove in the inner wall of the overflowing channel, the blocking ring is tightly attached to the other side face of the sealing structure, and the butterfly valve block and the sealing structure are fixed in the overflowing channel through the blocking step and the blocking ring.
The butterfly valve plate can be manufactured by adopting a metal injection molding process.
The invention has the beneficial effects that:
1. the integral valve body is integrally processed, most processing procedures can be finished under the working condition of one-time processing equipment clamping, the consistency of products is improved, and the dimensional accuracy is ensured;
2. the integral valve body has no other installation parts, so that the assembly is convenient, the assembly workload is reduced, the assembly difficulty is simplified, and the assembly efficiency is improved;
3. the butterfly valve plate is adopted, the butterfly valve plate can be manufactured by adopting a metal injection molding process, the machining efficiency is improved compared with the traditional machining process, the dimensional precision of each batch is ensured, and the cost of parts is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic overall sectional structure of an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic view of a sealing structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a valve stem configuration according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a butterfly valve plate according to an embodiment of the invention;
in the figure: the valve comprises an integral valve body 1, a butterfly valve plate 2, a sealing structure 3, a fixing element 4, an overflowing channel 5, a sealing ring 6, a valve rod 7, a valve rod channel 8, a limiting surface 9, a bearing surface 10, a valve rod positioning groove 11, an outer wall 12, a valve rod mounting hole 13, an annular groove 14 and a blocking step 15.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
A small-caliber integrated butterfly valve structure comprises an integrated valve body 1, a butterfly valve plate 2, a sealing structure 3 and a valve rod 7, wherein the integrated valve body 1 is provided with a flow passage 5 and a valve rod mounting hole 13 which are integrally processed parts; the butterfly valve plate 2 is positioned in the sealing structure 3 and is arranged in the overflowing channel 5 of the integrated valve body 1 together, the integrated valve body 1, the butterfly valve plate 2 and the sealing structure 3 are combined together, and the valve rod 7 positions the butterfly valve plate 2 and the sealing structure 3 in the overflowing channel 5 through the valve rod mounting hole 13.
The integral valve body 1 is of an integral structure, and the integral valve body 1 does not have other assembling parts. The valve rod mounting hole 13 is communicated with the overflowing channel 5, the central line of the valve rod mounting hole 13 is perpendicular to the central line of the overflowing channel 5, the overflowing channel 5 on the integral valve body 1 is a cylindrical through hole, the inner diameter of the middle part of the overflowing channel 5 is reduced, and the valve rod mounting hole 13 is located at the position where the inner diameter of the middle part of the overflowing channel 5 is reduced.
The butterfly valve plate 2 is arranged in the position, the butterfly valve plate 2 can rotate relative to the sealing structure 3, and the butterfly valve plate 2 and the sealing mechanism 3 are assembled in the overflowing channel 5 of the integrated valve body 1 and are assembled with the integrated valve body 1 into a whole.
The outer edge of the sealing structure 3 is provided with an annular groove 14, a sealing ring 6 is arranged in the annular groove 14, and the sealing ring 6 seals the sealing structure 3 and the inner wall of the integral valve body 1.
A blocking step 15 is arranged in the overflowing channel 5 of the integral valve body 1, one side surface of the sealing structure 3 is clamped on the blocking step 15, and the other side surface of the sealing structure 3 is fixed through a fixing element 4; a check ring is selected as a fixing element 4, a clamping groove matched with the check ring is formed in the inner wall of the overflowing channel 5, the check ring has elasticity, after the butterfly valve block 2 and the sealing structure 3 are assembled in the overflowing channel 5 of the integral valve body 1, one side face of the sealing structure 3 is clamped on the blocking step 15, the check ring is clamped in the clamping groove in the inner wall of the overflowing channel 5, the check ring is tightly attached to the other side face of the sealing structure 3, and the butterfly valve block 2 and the sealing structure 3 are fixed in the overflowing channel 5 through the blocking step 15 and the check ring.
The butterfly valve plate 2 and the sealing structure 3 are provided with a shared valve rod channel 8, the central line of the valve rod channel 8 and the central line of a valve rod mounting hole 13 on the integral valve body 1 are positioned on the same straight line, and the valve rod 7 assembles and positions the integral valve body 1, the butterfly valve plate 2 and the sealing structure 3 through the valve rod mounting hole 13 and the valve rod channel 8.
A limiting surface 9 for limiting the butterfly valve plate 2 is arranged on the valve rod 7, and a bearing surface 10 which can be matched with the limiting surface 9 on the valve rod 7 is arranged in a valve rod channel 8 of the butterfly valve plate 2; through the matching of the limiting surface 9 and the bearing surface 10, the valve rod 7 rotates to drive the butterfly valve plate 2 to rotate along with the valve rod.
The valve rod 7 that is equipped with in the passageway 5 that overflows of integral valve body 1 and corresponds with valve rod mounting hole 13, valve rod positioning groove 11 are located valve rod mounting hole 13 central line for in the location valve rod passageway 8. The valve rod positioning groove 11 is not communicated with the outer wall 12 of the integral valve body 1, and the outer wall 12 of the integral valve body 1 protrudes out of the inner surface and the outer surface of the integral valve body 1.
An assembling method of a small-caliber integrated butterfly valve structure comprises the following steps:
manufacturing an integral valve body 1, wherein the integral valve body 1 is provided with a flow passage 5 and a valve rod mounting hole 13 which are integrally processed parts; the butterfly valve plate 2 is arranged in the sealing structure 3 and is placed in the overflowing channel 5 of the integrated valve body 1 together, the integrated valve body 1, the butterfly valve plate 2 and the sealing structure 3 are combined together to be assembled into a whole, and the valve rod 7 positions the butterfly valve plate 2 and the sealing structure 3 in the overflowing channel 5 through the valve rod mounting hole 13 to complete assembly.
A blocking step 15 is arranged in the overflowing channel 5 of the integral valve body 1, after the sealing structure 3 is pushed into the overflowing channel 5, one side surface of the sealing structure 3 is clamped on the blocking step 15, and the other side surface of the sealing structure 3 is fixed through a fixing element 4; the check ring is selected as a fixing element 4, a clamping groove matched with the check ring is formed in the inner wall of the overflowing channel 5, the check ring has elasticity, after the butterfly valve block 2 and the sealing structure 3 are assembled in the overflowing channel 5 of the integral valve body 1, one side face of the sealing structure 3 is clamped on the blocking step 15, the check ring is pushed into the overflowing channel 5 and clamped in the clamping groove in the inner wall of the overflowing channel 5, the check ring is tightly attached to the other side face of the sealing structure 3, and the butterfly valve block 2 and the sealing structure 3 are fixed in the overflowing channel 5 through the blocking step 15 and the check ring.
Claims (10)
1. The utility model provides a small-bore integral type butterfly valve structure which characterized in that: the valve comprises an integral valve body (1), a butterfly valve plate (2), a sealing structure (3) and a valve rod (7), wherein the integral valve body (1) is provided with a flow passage (5) and a valve rod mounting hole (13) which are integrally processed parts; the butterfly valve plate (2) is positioned in the sealing structure (3) and is arranged in the overflowing channel (5) of the integrated valve body (1) together, the integrated valve body (1), the butterfly valve plate (2) and the sealing structure (3) are combined together, and the butterfly valve plate (2) and the sealing structure (3) are positioned in the overflowing channel (5) through the valve rod mounting hole (13) by the valve rod (7).
2. The small-caliber integrated butterfly valve structure according to claim 1, wherein: the integral valve body (1) is of an integral structure, and the integral valve body (1) does not have other assembly parts; the valve rod mounting hole (13) is communicated with the overflowing channel (5), the central line of the valve rod mounting hole (13) is perpendicular to the central line of the overflowing channel (5), the overflowing channel (5) on the integrated valve body (1) is a cylindrical through hole, the inner diameter of the middle part of the valve rod mounting hole is reduced, and the valve rod mounting hole (13) is located at the reduced part of the inner diameter of the middle part of the overflowing channel (5).
3. A small-caliber integrated butterfly valve structure according to claim 1 or 2, characterized in that: the butterfly valve plate (2) is arranged in the position, the butterfly valve plate (2) can rotate relative to the sealing structure (3), and the butterfly valve plate (2) and the sealing mechanism (3) are assembled in the overflowing channel (5) of the integrated valve body (1) and are assembled with the integrated valve body (1) into a whole.
4. A small-caliber integrated butterfly valve structure according to claim 1 or 2, characterized in that: the outer edge of the sealing structure (3) is provided with an annular groove (1) 4, a sealing ring (6) is arranged in the annular groove (14), and the sealing ring (6) seals the sealing structure (3) and the inner wall of the integral valve body (1).
5. A small-caliber integrated butterfly valve structure according to claim 1 or 2, characterized in that: a blocking step (15) is arranged in the overflowing channel (5) of the integral valve body (1), one side surface of the sealing structure (3) is clamped on the blocking step (15), and the other side surface of the sealing structure (3) is fixed through a fixing element (4); the check ring is selected as a fixing element (4), a clamping groove matched with the check ring is formed in the inner wall of the overflowing channel (5), the check ring has elasticity, the butterfly valve block (2) and the sealing structure (3) are assembled in the overflowing channel (5) of the integral valve body (1), one side face of the sealing structure (3) is clamped on the blocking step (15), the check ring is clamped in the clamping groove in the inner wall of the overflowing channel (5), the check ring is tightly attached to the other side face of the sealing structure (3), and the butterfly valve block (2) and the sealing structure (3) are fixed in the flowing channel (5) through the blocking step (15) and the check ring.
6. A small-caliber integrated butterfly valve structure according to claim 1 or 2, characterized in that: be equipped with shared valve rod passageway (8) on butterfly valve block (2) and seal structure (3), the central line of this valve rod passageway (8) is located the collinear with valve rod mounting hole (13) central line on integral valve body (1), and valve rod (7) are through valve rod mounting hole (13) and valve rod passageway (8) with integral valve body (1), butterfly valve block (2) and seal structure (3) equipment location.
7. The small-caliber integrated butterfly valve structure according to claim 6, wherein: a limiting surface (9) for limiting the butterfly valve plate (2) is arranged on the valve rod (7), and a bearing surface (10) which can be matched with the limiting surface (9) on the valve rod (7) is arranged in a valve rod channel (8) of the butterfly valve plate (2); the valve rod (7) rotates to drive the butterfly valve plate (2) to rotate along with the rotation of the valve rod through the matching of the limiting surface (9) and the bearing surface (10).
8. A small-caliber integrated butterfly valve structure according to claim 1 or 2, characterized in that: the valve rod positioning groove (11) corresponding to the valve rod mounting hole (13) is arranged in the overflowing channel (5) of the integral valve body (1), and the valve rod positioning groove (11) is located on the central line of the valve rod mounting hole (13) and used for positioning the valve rod (7) in the valve rod channel (8).
9. A method for assembling a small-caliber integrated butterfly valve structure is characterized by comprising the following steps: manufacturing an integral valve body (1), wherein the integral valve body (1) is provided with a flow passage (5) and a valve rod mounting hole (13) which are integrally processed parts; the butterfly valve plate (2) is arranged in the sealing structure (3) and is arranged in the overflowing channel (5) of the integrated valve body (1) together, the integrated valve body (1), the butterfly valve plate (2) and the sealing structure (3) are combined together to be assembled into a whole, and the butterfly valve plate (2) and the sealing structure (3) are positioned in the overflowing channel (5) through the valve rod mounting holes (1) and (3) by the valve rod (7) to complete assembly.
10. The method of assembling a small-caliber integrated butterfly valve structure according to claim 1 or 2, wherein: a blocking step (15) is arranged in the overflowing channel (5) of the integral valve body (1), one side face of the sealing structure (3) is clamped on the blocking step (15) after the sealing structure (3) is pushed into the overflowing channel (5), and the other side face of the sealing structure (3) is fixed through a fixing element (4); the check ring is selected as a fixing element (4), a clamping groove matched with the check ring is formed in the inner wall of the overflowing channel (5), the check ring has elasticity, the butterfly valve block (2) and the sealing structure (3) are assembled in the overflowing channel (5) of the integral valve body (1), one side face of the sealing structure (3) is clamped on the blocking step (15), the check ring is pushed into the overflowing channel (5) and clamped in the clamping groove in the inner wall of the overflowing channel (5), the check ring is tightly attached to the other side face of the sealing structure (3), and the butterfly valve block (2) and the sealing structure (3) are fixed in the overflowing channel (5) through the blocking step (15) and the check ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488178.0A CN111503286A (en) | 2020-06-02 | 2020-06-02 | Small-caliber integrated butterfly valve structure and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488178.0A CN111503286A (en) | 2020-06-02 | 2020-06-02 | Small-caliber integrated butterfly valve structure and assembling method thereof |
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| Publication Number | Publication Date |
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| CN111503286A true CN111503286A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010488178.0A Pending CN111503286A (en) | 2020-06-02 | 2020-06-02 | Small-caliber integrated butterfly valve structure and assembling method thereof |
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| CN (1) | CN111503286A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865752A (en) * | 2021-09-29 | 2021-12-31 | 汇中仪表股份有限公司 | Large-caliber integrated valve-controlled heat meter structure and assembling method thereof |
-
2020
- 2020-06-02 CN CN202010488178.0A patent/CN111503286A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865752A (en) * | 2021-09-29 | 2021-12-31 | 汇中仪表股份有限公司 | Large-caliber integrated valve-controlled heat meter structure and assembling method thereof |
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