CN221145381U - Ball valve seal adjusting structure - Google Patents
Ball valve seal adjusting structure Download PDFInfo
- Publication number
- CN221145381U CN221145381U CN202322512209.3U CN202322512209U CN221145381U CN 221145381 U CN221145381 U CN 221145381U CN 202322512209 U CN202322512209 U CN 202322512209U CN 221145381 U CN221145381 U CN 221145381U
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- valve
- sealing ring
- valve body
- valve core
- seal
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- 238000007789 sealing Methods 0.000 claims abstract description 90
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 210000001503 joint Anatomy 0.000 claims abstract description 8
- 238000005267 amalgamation Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model relates to a ball valve seal adjusting structure, which comprises a valve body, a valve core and a valve rod, wherein an inner cavity and a flow channel communicated with the inner cavity are arranged in the valve body; the valve core is arranged in the inner cavity of the valve body and realizes the on-off state of the inner cavity and the flow channel through rotation; the valve rod is organized on the valve body, one end of the valve rod is connected with the valve core, and the other end of the valve rod is exposed out of the valve body in a protruding mode and is used for controlling; the sealing ring is embedded in the butt joint area of the flow channel and the valve core, and the valve body is provided with a sealing adjusting mechanism which is used for driving the sealing ring to lean against the valve core, and the sealing adjusting mechanism leads out an operating end to the outer peripheral surface of the valve body so as to carry out sealing adjusting operation. The structure is simple, the assembly, the use and the maintenance are convenient, and the investment cost is low; the gap between the valve core and the sealing ring can be adjusted, so that the tightness of the ball valve is ensured; and the valve body is operated on the peripheral surface, so that the operation and adjustment are convenient, the gap between the valve core and the sealing ring can be adjusted without stopping the gate, and the production is ensured.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a ball valve.
Background
Ball valves are used in pipelines mainly to cut off, distribute and change the flow direction of a medium, and can be tightly closed only by rotating the ball valve by 90 degrees and small rotating moment. In the traditional ball valve, a valve core is spherical, is embedded in an inner cavity of a valve body, and is internally provided with a corresponding sealing ring for contacting with the valve core; after long-term use, gaps are generated due to abrasion between the valve core and the sealing ring, so that the leakage problem is caused, and the tightness and the service life of the valve are affected when the valve is closed; and the existing ball valve can not be adjusted for sealing in use, so that when leakage occurs, the ball valve can only be closed for valve replacement or valve disassembly maintenance, and the production is seriously influenced.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a ball valve sealing adjusting structure which can adjust the gap between a valve core and a sealing ring under the condition of closing a gate without stopping, ensure the sealing performance of the ball valve and reduce the influence on production.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The ball valve seal adjusting structure comprises a valve body, a valve core and a valve rod, wherein an inner cavity and a flow channel communicated with the inner cavity are arranged in the valve body; the valve core is arranged in the inner cavity of the valve body and realizes the on-off state of the inner cavity and the flow channel through rotation; the valve rod is organized on the valve body, one end of the valve rod is connected with the valve core, and the other end of the valve rod is protruded out of the valve body and used for controlling so as to drive the valve core to rotate through the valve rod; the sealing ring is embedded in the butt joint area of the flow channel and the valve core, and the valve body is provided with a sealing adjusting mechanism which is used for driving the sealing ring to lean against the valve core, and the sealing adjusting mechanism leads out an operating end to the outer peripheral surface of the valve body so as to carry out sealing adjusting operation.
The sealing adjusting mechanism further comprises an ejection sliding block and an operating piece, wherein the ejection sliding block is a sleeve, is assembled according to a flow channel on the valve body and can axially slide, the inner end of the ejection sliding block supports a sealing ring, and the periphery of the ejection sliding block is provided with a radial concave inclined surface groove; the control piece is assembled on the valve body and provided with an operation end led out to the outer peripheral surface of the valve body, and the pushing slide block axially slides through the inclined surface groove for the control piece, so that the pushing slide block drives the sealing ring to lean against the valve core and keeps propping against the sealing ring.
The above scheme is that the flow channel on the valve body comprises an inlet channel and an outlet channel; the two sealing rings are used for defining a first sealing ring which is embedded in the abutting area of the inner end of the inlet channel and the valve core, and a second sealing ring which is embedded in the abutting area of the inner end of the outlet channel and the valve core; the two groups of the pushing sliding blocks of the sealing adjusting mechanism are respectively assembled in the inlet channel and the outlet channel correspondingly and can axially slide, and the pushing sliding blocks axially slide through the inclined grooves of the operating piece, so that the pushing sliding blocks drive the first sealing ring or the second sealing ring to lean against the valve core and keep propping against the sealing rings.
The above scheme is that the flow channel on the valve body comprises an inlet channel and an outlet channel, the valve body is formed by splicing a first shell and a second shell in a left-right relation, the inlet channel is formed in the first shell, the inner cavity and the outlet channel are formed in the second shell, two sealing rings are arranged, a first sealing ring is defined as a sealing ring embedded in a butt joint area of the inner end of the inlet channel and the valve core, and a second sealing ring is defined as a sealing ring embedded in a butt joint area of the inner end of the outlet channel and the valve core; the seal adjusting mechanism is only one group and is used for driving the first sealing ring, the ejection sliding block of the seal adjusting mechanism is correspondingly assembled in the inlet channel and can axially slide, and the axial sliding of the ejection sliding block is realized through the inclined surface groove acted by the control piece, so that the ejection sliding block drives the first sealing ring to lean against the valve core and keeps propping against the sealing ring.
The technical scheme is that the operation control piece is in a single screw form and correspondingly assembled in a screw hole preset in the valve body, the inner end of the operation control piece is provided with a conical part, and the conical part and the inclined plane groove form an inclined plane supporting mode to push the pushing sliding block to axially slide by screwing the operation control piece.
The control piece is composed of a thimble and an operation screw, and is correspondingly assembled in a screw hole preset on the valve body, and a corresponding internal thread section is arranged in the screw hole; the thimble is provided with an outer end and an inner end, and a supporting inclined plane is arranged on the inner end and matched with the contact inclined plane groove; the operation screw is connected with the internal thread section in the corresponding screw hole, so that the operation screw can be screwed in and out, the outer end of the ejector pin is supported by screwing in the operation screw, the inner end of the ejector pin stretches into the inclined plane groove, and the supporting inclined plane and the inclined plane groove form an inclined plane supporting mode to push the pushing slide block to axially slide.
The above scheme is further that the first shell is provided with a first flange part, the second shell is provided with a second flange part, the second flange part is provided with a bolt, when the first shell and the second shell are assembled, the first flange part is attached to the second flange part, and the first shell and the second shell are firmly connected through the bolt penetrating through the first flange part and then being locked with the nut.
The valve body is provided with the sealing adjusting mechanism which is used for driving the first sealing ring or the second sealing ring to lean against the valve core, so that the gap between the valve core and the sealing ring can be adjusted, and the tightness of the ball valve is ensured; and the sealing adjusting mechanism is operated on the peripheral surface of the valve body, so that the operation and adjustment are convenient, the gap between the valve core and the sealing ring can be adjusted without stopping the gate, and the production is ensured.
The utility model has the advantages of simple structure, convenient assembly, use and maintenance and low investment cost.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of a portion of the embodiment of FIG. 1;
FIG. 3 is an exploded view of the structure of FIG. 2;
FIG. 4 is a schematic diagram of the structure of two embodiments of the present utility model;
fig. 5 is an exploded view of the embodiment of fig. 4.
Detailed Description
The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.
It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
Referring to fig. 1, 2, 3, 4 and 5, which are schematic views of a preferred embodiment of the present utility model, the present utility model relates to a ball valve seal adjusting structure, which comprises a valve body 1, a valve core 2 and a valve rod 3, wherein an inner cavity 11 and a flow channel communicating with the inner cavity 11 are arranged in the valve body 1, and the flow channel shown in the figure comprises an inlet channel 12 and an outlet channel 13; the valve core 2 is arranged in the inner cavity 11 of the valve body 1 and realizes the on-off state of the inner cavity 11, the inlet channel 12 and the outlet channel 13 through rotation. The valve rod 3 is organized on the valve body 1, one end of the valve rod 3 is connected with the valve core 2, and the other end of the valve rod 3 is exposed out of the valve body 1 for manipulation so as to drive the valve core 2 to rotate through the valve rod 3. A sealing ring is embedded in the butt joint area of the runner and the valve core 2, and two sealing rings are arranged in the figure, namely: a first sealing ring 4 is embedded in the abutting area of the inner end of the inlet channel 12 and the valve core 2, a second sealing ring 5 is embedded in the abutting area of the inner end of the outlet channel 13 and the valve core 2, and a corresponding sealing curved surface is arranged on the outer surface of the valve core 2 to be matched with the first sealing ring 4 and the second sealing ring 5 for contact sealing. The valve body 1 is also provided with a seal adjusting mechanism which is used for driving the first sealing ring 4 or the second sealing ring 5 to lean against the valve core 2, and an operating end of the seal adjusting mechanism is led out to the outer peripheral surface of the valve body so as to carry out seal adjusting operation. Therefore, when the problem of tightness between the valve core 2 and the first sealing ring 4 or the second sealing ring 5 occurs, the first sealing ring 4 or the second sealing ring 5 can be driven to lean against the valve core 2 through the sealing adjusting mechanism, the gap between the valve core and the sealing ring is adjusted, and the tightness of the ball valve is ensured. And the sealing adjusting mechanism is operated on the peripheral surface of the valve body, so that the operation and adjustment are convenient, the gap between the valve core and the sealing ring can be adjusted without stopping the gate, and the production is ensured.
Referring to fig. 1, 2 and 3, in this embodiment, the seal adjusting mechanism has two groups, which are respectively used to drive the first seal ring 4 and the second seal ring 5, each group of seal adjusting mechanism includes an ejector slider 61 and a control member 62, where the ejector slider 61 is a sleeve, and is correspondingly assembled in the inlet channel 12 and the outlet channel 13 and can slide axially, and the inner end of the ejector slider 61 supports the first seal ring 4 or the second seal ring 5, and in this embodiment, the ejector slider 61 is preferably coaxially installed with the inlet channel 12 and the outlet channel 13, and adds a corresponding seal design, and in order to ensure the sliding property of the ejector slider 61, a corresponding guide structure can be designed to guide the installation of the ejector slider 61, such as designing a key slot structure. In order to ensure that the supporting and stress of the pushing slide 61 on the first sealing ring 4 and the second sealing ring 5 are balanced, a plurality of inclined grooves 611 are preferably arranged on the periphery of the pushing slide 61, and the inclined grooves 611 are uniformly arranged at intervals around the pushing slide 61. The operating piece 62 is assembled on the valve body 1 and provided with an operating end led out to the outer peripheral surface of the valve body 1, and the operating piece 62 acts on the inclined surface groove 611 to realize the axial sliding of the pushing sliding block 61 and keep the pushing sliding block 61 propped against the first sealing ring 4 or the second sealing ring 5.
As shown in fig. 1, 2 and 3, the control member 62 is composed of a thimble 621 and an operation screw 622, the control member 62 is correspondingly assembled in a screw hole 14 preset on the valve body 1, and a corresponding internal thread section is provided in the screw hole 14; thimble 621 has an outer end and an inner end, and is provided with a supporting inclined surface 6211 on the inner end, and the supporting inclined surface 6211 is matched with the contact inclined surface groove 611; the operating screw 622 is coupled to the internally threaded section of the screw hole 14 such that the operating screw 622 can be screwed in and out. The outer end of the ejector pin 621 is supported by screwing the operation screw 622 and the inner end of the ejector pin 621 extends into the inclined surface groove 611, so that the supporting inclined surface 6211 and the inclined surface groove 611 form an inclined surface supporting manner to push the pushing slide block 61 to axially slide.
As shown in fig. 4 and 5, the control member 62 may be in a single screw form, and is correspondingly assembled in the preset screw hole 14 on the valve body 1, the inner end of the control member 62 has a conical portion, and the pushing slider 61 is pushed to slide axially by screwing the control member 62 to form an inclined support with the inclined groove 611.
As shown in fig. 4 and 5, the valve body 1 of the present embodiment is constructed by joining a first housing 15 and a second housing 16 in a side-to-side relationship, the first housing 15 is constructed with an inlet passage 12, and the second housing 16 is constructed with an inner chamber 11 and an outlet passage 13. According to the adjustment requirement, the seal adjustment mechanism of the present embodiment has a set of seal adjustment mechanisms for driving the first seal ring 4, and the seal adjustment mechanism includes an ejector slider 61 and a control member 62, where the ejector slider 61 is a sleeve, and is correspondingly assembled in the inlet channel 12 and can slide axially, the inner end of the ejector slider 61 supports the first seal ring 4, and a radial concave inclined groove 611 is provided on the outer periphery of the ejector slider 61; the operating member 62 is assembled on the valve body 1 and provided with an operating end led out to the outer peripheral surface of the first housing 15, and the operating member 62 acts on the inclined groove 611 to realize the axial sliding of the ejector slide block 61 and keep the ejector slide block 61 propped against the first sealing ring 4. In order to facilitate assembly, the first housing 15 is provided with a first flange 151, the second housing 16 is provided with a second flange 161, and the second flange 161 is provided with a bolt 162, when the first housing 15 and the second housing 16 are assembled, the first flange 151 is attached to the second flange 161, and the first housing 15 and the second housing 16 are firmly connected by being locked with the nut 17 after passing through a preset through hole in the first flange 151 through the bolt 162.
The utility model has simple structure, convenient assembly, use and maintenance and low investment cost. The adjustment is needed, and only the operation control 62 is needed to be driven from the outside, so that the pushing slide block 61 is axially slid and the pushing slide block 61 drives the first sealing ring 4 or the second sealing ring 5 to lean against the valve core 2, so that the gap between the valve core and the sealing ring can be adjusted, and the tightness of the ball valve is ensured; and the valve body is operated on the peripheral surface, so that the operation and adjustment are convenient, the gap between the valve core and the sealing ring can be adjusted without stopping the gate, and the production is ensured.
The present utility model has been described in detail with reference to the embodiments, but it is to be understood that the utility model is not limited to the embodiments, and is intended to be interpreted by those skilled in the art as including the following claims.
Claims (4)
1. The ball valve seal adjusting structure comprises a valve body (1), a valve core (2) and a valve rod (3), wherein an inner cavity (11) and a flow channel communicated with the inner cavity (11) are arranged in the valve body (1); the valve core (2) is arranged in the inner cavity (11) of the valve body (1) and realizes the on-off state of the inner cavity (11) and the flow passage through rotation; the valve rod (3) is assembled on the valve body (1), one end of the valve rod (3) is connected with the valve core (2), and the other end of the valve rod (3) is exposed out of the valve body (1) in a protruding mode and used for controlling so as to drive the valve core (2) to rotate through the valve rod (3); the method is characterized in that: a sealing ring is embedded in the butt joint area of the flow channel and the valve core (2), and a sealing adjusting mechanism is arranged on the valve body (1) and used for driving the sealing ring to lean against the valve core (2), and an operating end is led out from the sealing adjusting mechanism to the outer peripheral surface of the valve body (1) so as to carry out sealing adjusting operation;
The sealing adjusting mechanism comprises an ejection sliding block (61) and an operating piece (62), wherein the ejection sliding block (61) is a sleeve, is assembled according to a flow channel on the valve body (1) and can axially slide, the inner end of the ejection sliding block (61) supports a sealing ring, and the periphery of the ejection sliding block (61) is provided with a radial concave inclined surface groove (611); the control piece (62) is assembled on the valve body (1) and provided with an operation end led out to the outer peripheral surface of the valve body (1), and the pushing slide block (61) axially slides through the inclined surface groove (611) acted by the control piece (62), so that the pushing slide block (61) drives the sealing ring to lean against the valve core (2) and keeps propping against the sealing ring;
The control piece (62) consists of a thimble (621) and an operation screw (622), the control piece (62) is correspondingly assembled in a screw hole (14) preset on the valve body (1), and a corresponding internal thread section is arranged in the screw hole (14); the thimble (621) has an outer end and an inner end, and is provided with a supporting inclined plane (6211) on the inner end, and the supporting inclined plane (6211) is matched with the contact inclined plane groove (611); the operation screw (622) is connected with the inner thread section in the corresponding screw hole (14), so that the operation screw (622) can be screwed in and out, the outer end of the thimble (621) is propped by screwing in the operation screw (622), the inner end of the thimble (621) stretches into the inclined surface groove (611), and the propping inclined surface (6211) and the inclined surface groove (611) form an inclined surface propping mode to push the pushing sliding block (61) to axially slide.
2. The ball valve seal adjustment structure according to claim 1, wherein: the flow passage on the valve body (1) comprises an inlet passage (12) and an outlet passage (13); the two sealing rings are used for defining a first sealing ring (4) at the abutting area of the inner end of the inlet channel (12) and the valve core (2), and a second sealing ring (5) at the abutting area of the inner end of the outlet channel (13) and the valve core (2); the two groups of seal adjusting mechanisms are respectively used for driving the first seal ring (4) and the second seal ring (5), the ejection sliding blocks (61) of the two groups of seal adjusting mechanisms are respectively correspondingly assembled in the inlet channel (12) and the outlet channel (13) and can axially slide, the operation control (62) acts on the inclined surface groove (611) to realize the axial sliding of the ejection sliding blocks (61), and the ejection sliding blocks (61) drive the first seal ring (4) or the second seal ring (5) to lean against the valve core (2) and keep propping against the seal rings.
3. The ball valve seal adjustment structure according to claim 1, wherein: the flow passage on the valve body (1) comprises an inlet passage (12) and an outlet passage (13), the valve body (1) is formed by splicing a first shell (15) and a second shell (16) in a left-right relation, the inlet passage (12) is formed in the first shell (15), an inner cavity (11) and the outlet passage (13) are formed in the second shell (16), two sealing rings are arranged, a sealing ring which is embedded in a butt joint area of the inner end of the inlet passage (12) and the valve core (2) is defined as a first sealing ring (4), and a sealing ring which is embedded in a butt joint area of the inner end of the outlet passage (13) and the valve core (2) is a second sealing ring (5); the seal adjusting mechanism is only one group and is used for driving the first sealing ring (4), the ejection sliding block (61) of the seal adjusting mechanism is correspondingly assembled in the inlet channel (12) and can axially slide, the operation control (62) acts on the inclined surface groove (611) to realize the axial sliding of the ejection sliding block (61), and the ejection sliding block (61) drives the first sealing ring (4) to lean against the valve core (2) and keep propping against the sealing ring.
4. A ball valve seal adjustment structure according to claim 3, characterized in that: be equipped with first flange portion (151) on first casing (15), be equipped with second flange portion (161) on second casing (16) to be equipped with bolt (162) on second flange portion (161), when first casing (15) and second casing (16) amalgamation, first flange portion (151) laminating with second flange portion (161), and pass behind first flange portion (151) through bolt (162) and nut (17) lock to establish the state that first casing (15) and second casing (16) are firm to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322512209.3U CN221145381U (en) | 2023-09-15 | 2023-09-15 | Ball valve seal adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322512209.3U CN221145381U (en) | 2023-09-15 | 2023-09-15 | Ball valve seal adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221145381U true CN221145381U (en) | 2024-06-14 |
Family
ID=91389916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322512209.3U Active CN221145381U (en) | 2023-09-15 | 2023-09-15 | Ball valve seal adjusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221145381U (en) |
-
2023
- 2023-09-15 CN CN202322512209.3U patent/CN221145381U/en active Active
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