CN110159783B - Top-mounted ball valve - Google Patents
Top-mounted ball valve Download PDFInfo
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- CN110159783B CN110159783B CN201910374840.7A CN201910374840A CN110159783B CN 110159783 B CN110159783 B CN 110159783B CN 201910374840 A CN201910374840 A CN 201910374840A CN 110159783 B CN110159783 B CN 110159783B
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0626—Easy mounting or dismounting means
- F16K5/0636—Easy mounting or dismounting means the spherical plug being insertable from the top of the housing
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a top-mounted ball valve which comprises a valve body and a ball-valve seat assembly, wherein the ball-valve seat assembly comprises a first valve seat assembly, a second valve seat assembly and a ball body, and further comprises a first adjusting assembly and a second adjusting assembly which are arranged on the valve body, the first valve seat assembly and the second valve seat assembly are respectively connected with the first adjusting assembly and the second adjusting assembly, the first adjusting assembly and/or the second adjusting assembly are/is adjusted to enable the distance between the first valve seat assembly and the second valve seat assembly to be increased and decreased, and the maximum distance between the first valve seat assembly and the second valve seat assembly is larger than the distance required for taking and mounting the ball body. The invention has the beneficial effects that: but the interval between first valve seat subassembly and the second valve seat subassembly grow and diminish, the spheroid is then conveniently got to the grow process, and the process that diminishes then can make first valve seat subassembly and second valve seat subassembly more inseparabler with the spheroid subsides, ensures the leakproofness performance to reduce the maintenance number of times.
Description
Technical Field
The invention relates to the field of ball valves, in particular to an upper-mounted ball valve.
Background
The upper-mounted ball valve is widely applied to petroleum and natural gas pipelines and devices for oil extraction, oil refining, petrifaction, chemical industry, chemical fiber, metallurgy, electric power, nuclear power, food, paper making and the like. The upper-mounted ball valve is simple and rapid to disassemble on a pipeline, and convenient and rapid to maintain, when the upper-mounted ball valve breaks down on the pipeline and needs to be repaired, the upper-mounted ball valve does not need to be completely disassembled from the pipeline, only a middle flange bolt and a nut need to be disassembled, the valve cover and the valve rod are taken out of the valve body together, and then the ball body and the valve seat assembly are taken out, so that the online repair can be realized, the time is saved, and the loss in production is reduced to the lowest point.
The corresponding face of facial make-up ball valve spheroid and valve seat subassembly in long-term use can produce the friction between, and then leads to sealing performance greatly reduced, needs frequent maintenance, in addition, when getting the dress spheroid, all needs special instrument compulsory both ends valve seat subassembly of pushing away usually, just can get the dress spheroid, needs the cooperation assembly more than two people, wastes time and energy.
Disclosure of Invention
The invention aims to solve the technical problem of providing an upper-mounted ball valve so as to overcome the defects in the prior art.
The technical scheme for solving the technical problems is as follows: an upper-mounted ball valve comprises
The valve body is provided with a valve cavity, and an upper opening, a liquid inlet channel and a liquid outlet channel which are respectively communicated with the valve cavity are formed on the valve body;
the ball-valve seat assembly comprises a first valve seat assembly, a second valve seat assembly and a ball body, wherein the first valve seat assembly and the second valve seat assembly are arranged in the valve cavity and are respectively positioned at the liquid inlet channel and the liquid outlet channel, the ball body is arranged between the first valve seat assembly and the second valve seat assembly and is respectively in sealing contact with the first valve seat assembly and the second valve seat assembly, a conducting channel is formed in the ball body, and when the ball body is rotated to the two ends of the conducting channel to be respectively communicated with the liquid inlet channel and the liquid outlet channel, the upper-mounted ball valve is conducted;
the ball valve further comprises a first adjusting component and a second adjusting component which are arranged on the valve body, the first valve seat component and the second valve seat component are connected with the first adjusting component and the second adjusting component respectively, the first adjusting component and/or the second adjusting component are/is adjusted to enable the distance between the first valve seat component and the second valve seat component to be large and small, and when the first adjusting component and the second adjusting component are adjusted, the maximum distance between the first valve seat component and the second valve seat component is larger than the distance required by taking and installing the ball body.
The beneficial effects of the invention are: when the upper assembling type ball valve is used, the first adjusting component and/or the second adjusting component are adjusted to enable the distance between the first valve seat component and the second valve seat component to be enlarged or reduced, the ball body is conveniently taken and assembled in the enlarging process, the first valve seat component and the second valve seat component are more tightly attached to the ball body in the reducing process, the sealing performance is ensured, and the maintenance frequency is reduced.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, a first annular mounting groove communicated with the valve cavity is arranged in the valve body around the liquid inlet channel, a first external thread is arranged on the outer surface of the valve body in a region surrounding the first annular mounting groove, the first adjusting assembly comprises a first adjusting sleeve, a first movable sleeve, a first connecting rod and a first connecting sleeve, a first internal thread is arranged on the inner wall surface of the first adjusting sleeve, the first adjusting sleeve and the first movable sleeve are sleeved on the region of the valve body provided with the first external thread, the first internal thread on the first adjusting sleeve is screwed with the first external thread on the valve body, the first movable sleeve is positioned between the first adjusting sleeve and the ball body, the first movable sleeve is axially and rotatably connected with the first adjusting sleeve, the first connecting sleeve is arranged in the first annular mounting groove, a plurality of through grooves communicated with the first annular mounting groove are arranged on the region of the valve body provided with the first external thread, and a first connecting rod is arranged in each through groove, two ends of the first connecting rod are respectively connected with the first movable sleeve and the first connecting sleeve; the first valve seat assembly is arranged in the first annular mounting groove, the first valve seat assembly is in sealing contact with the groove wall of the first annular mounting groove, and the first connecting sleeve is connected with the first valve seat assembly.
The adoption of the further beneficial effects is as follows: when in use, the first adjusting sleeve is rotated, and the first adjusting sleeve is in threaded connection with the valve body, so that the first adjusting sleeve can move on the valve body after the first adjusting sleeve is rotated, after the first adjusting sleeve moves, the first adjusting sleeve drives the whole body formed by the first movable sleeve, the first connecting rod and the first connecting sleeve to move synchronously, the first valve seat component is connected with the first connecting sleeve, so that after the whole body formed by the first movable sleeve, the first connecting rod and the first connecting sleeve moves, the first valve seat component also moves synchronously along with the whole body, therefore, the distance between the first valve seat assembly and the second valve seat assembly can be adjusted conveniently, the sealing performance between the ball body and the first valve seat assembly and the sealing performance between the ball body and the second valve seat assembly can be adjusted without disassembling in the using process of the upper-mounted ball valve, the dismounting maintenance frequency is reduced, and the maintenance frequency of the first valve seat assembly can be reduced.
Further, first disk seat subassembly includes first disk seat, first seal ring, first outer seal ring and first inner seal ring, first disk seat is inside cavity, both ends open-ended axle sleeve column structure, the one end socket joint of first disk seat is in first annular mounting groove, the other end of first disk seat extends to the valve intracavity, the one end that first disk seat extends to the valve intracavity is equipped with first seal ring, be equipped with first outer seal ring and first inner seal ring between the outer periphery of first disk seat and the first annular mounting groove and between the inner circumference of first disk seat and the first annular mounting groove respectively.
The adoption of the further beneficial effects is as follows: on one hand, the first valve seat component can be ensured to be in sealing contact with the ball, and on the other hand, the problem that the first valve seat component is poor in sealing contact with the valve body due to the addition of the first adjusting component can be solved.
Further, the first valve seat is composed of a first straight line section, a first circular table section and a second straight line section which are sequentially connected, the first straight line section is located in the first annular installation groove, the second straight line section extends into the valve cavity, and a first outer sealing ring and a first inner sealing ring are respectively arranged between the outer circumferential surface of the second straight line section and the first annular installation groove and between the inner circumferential surface of the second straight line section and the first annular installation groove; the first valve seat assembly further comprises a first outer baffle and a first inner baffle, the first outer baffle and the first inner baffle are both arranged at the opening of the first annular mounting groove and respectively block the first outer sealing ring and the first inner sealing ring; when adjusting first valve seat subassembly through first adjusting part and being close to the spheroid, first round platform section and first outer baffle cooperate so that first outer sealing washer takes place elastic deformation jointly to and first round platform section and first interior baffle cooperate so that first inner sealing washer takes place elastic deformation jointly.
The adoption of the further beneficial effects is as follows: when the first regulation assembly is regulated so that the distance between the first valve seat assembly and the second valve seat assembly becomes small, the performance of the sealing contact between the first valve seat and the first annular mounting groove can be enhanced.
Further, first outer baffle and first interior baffle all can dismantle with the valve body and be connected.
The adoption of the further beneficial effects is as follows: the first outer sealing ring and the first inner sealing ring are convenient to take and install.
Furthermore, first valve seat subassembly still includes elastic element, and elastic element sets up between first connecting sleeve and first valve seat, and elastic element's both ends respectively with first connecting sleeve and first valve seat fixed connection.
Further, the elastic element is a cylindrical spring.
The beneficial effects of the two steps are as follows: the sealing performance between the first valve seat assembly and the ball can be further ensured.
Furthermore, the first connecting rod and the first movable sleeve and the first connecting rod and the first connecting sleeve can be detachably connected.
Adopt above-mentioned further beneficial effect to be: make things convenient for the first adjusting part of dismouting.
Furthermore, a convex ring is arranged on the first adjusting sleeve, the convex ring extends to be partially overlapped with the first movable sleeve, an annular groove is formed in the overlapped area of the first movable sleeve and the convex ring, a protrusion extending into the annular groove is formed in the convex ring, and the annular groove, the protrusion and the convex ring are matched together to realize that the first movable sleeve is axially and rotatably connected with the first adjusting sleeve.
The adoption of the further beneficial effects is as follows: simple structure, and can stably realize the axial rotation between first adjusting collar and the first movable sleeve and be connected.
Drawings
FIG. 1 is a schematic structural view of a top-loading ball valve according to the present invention;
FIG. 2 is a partial block diagram of FIG. 1;
FIG. 3 is a partial enlarged view of the first part of FIG. 2;
fig. 4 is a second partial enlarged view of fig. 2.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the valve body 110, the valve cavity 120, the upper opening 130, the liquid inlet channel 140, the liquid outlet channel 150, the first annular mounting groove 160, the passing groove,
2. the ball-valve seat assembly comprises a ball-valve seat assembly, 210, a first valve seat assembly, 211, a first valve seat, 2111, a first straight line segment, 2112, a first circular table segment, 2113, a second straight line segment, 212, a first sealing gasket, 213, a first outer sealing ring, 214, a first inner sealing ring, 215, a first outer baffle, 216, a first inner baffle, 217, an elastic element, 220, a second valve seat assembly, 230, a ball, 231, a conducting channel, 3, a first adjusting assembly, 310, a first adjusting sleeve, 311, a convex ring, 3111, a protrusion, 320, a first movable sleeve, 321, an annular groove, 330, a first connecting rod, 340, a first connecting sleeve, 4 and a second adjusting assembly.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, an upper-mounted ball valve comprises a valve body 1 having a valve cavity 110, wherein the valve body 1 is formed with an upper opening 120, a liquid inlet channel 130 and a liquid outlet channel 140 respectively communicated with the valve cavity 110, in a normal condition, the liquid inlet channel 130 and the liquid outlet channel 140 are both in a horizontal state, the upper opening 120 is in a vertical state, the liquid inlet channel 130 and the liquid outlet channel 140 are coaxial, and the axial line of the upper opening 120 intersects with the axial line of the liquid inlet channel 130 or the axial line of the liquid outlet channel 140; the ball-valve seat assembly 2 includes a first valve seat assembly 210 and a second valve seat assembly 220 disposed in the valve cavity 110 and located at the inlet passage 130 and the outlet passage 140, respectively, and a ball 230 disposed between the first valve seat assembly 210 and the second valve seat assembly 220 and forming a sealing contact with the first valve seat assembly 210 and the second valve seat assembly 220, respectively, a conducting passage 231 is disposed on the ball 230, and when two ends of the ball 230 to the conducting passage 231 are communicated with the inlet passage 130 and the outlet passage 140, respectively, the top-mounted ball valve is conducted.
The top-mounted ball valve further comprises a first adjusting component 3 and a second adjusting component 4 which are arranged on the valve body 1, the first valve seat component 210 and the second valve seat component 220 are respectively connected with the first adjusting component 3 and the second adjusting component 4, the first adjusting component 3 and/or the second adjusting component 4 are/is adjusted to enable the distance between the first valve seat component 210 and the second valve seat component 220 to be increased and decreased, and when the first adjusting component 3 and the second adjusting component 4 are adjusted, the maximum distance between the first valve seat component 210 and the second valve seat component 220 is larger than the distance needed for taking and mounting the ball body 230.
A first annular mounting groove 150 communicated with the valve cavity 110 is arranged in the valve body 1 around the liquid inlet passage 130, a first external thread is arranged on the outer surface of the valve body 1 in the area surrounding the first annular mounting groove 150, the first adjusting component 3 comprises a first adjusting sleeve 310, a first movable sleeve 320, a first connecting rod 330 and a first connecting sleeve 340, a first internal thread is arranged on the inner wall surface of the first adjusting sleeve 310, the first adjusting sleeve 310 and the first movable sleeve 320 are both sleeved on the area of the valve body 1 provided with the first external thread, the first internal thread on the first adjusting sleeve 310 is screwed with the first external thread on the valve body 1, the first movable sleeve 320 is positioned between the first adjusting sleeve 310 and the ball 230, the first movable sleeve 320 is axially and rotatably connected with the first adjusting sleeve 310, that is, when the first adjusting sleeve 310 is rotated, the first adjusting sleeve 310 horizontally moves along the valve body 1, and the first movable sleeve 320 horizontally moves under the driving of the first adjusting sleeve 310, the first connecting sleeve 340 is disposed in the first annular mounting groove 150, and the difference between the inside and the outside of the first connecting sleeve 340 is generally equal to or slightly smaller than the groove width of the first annular mounting groove 150, and if slightly smaller, the difference is 0.1mm-2 mm.
The valve body 1 is provided with a plurality of through grooves 160 communicated with the first annular mounting groove 150 in an area provided with the first external thread, each through groove 160 is internally provided with a first connecting rod 330, two ends of the first connecting rod 330 are respectively connected with the first movable sleeve 320 and the first connecting sleeve 340, generally, the diameter of the first connecting rod 330 is equal to or slightly smaller than the groove width of the through groove 160, the first valve seat assembly 210 is arranged in the first annular mounting groove 150, the first valve seat assembly 210 is in sealing contact with the groove wall of the first annular mounting groove 150, and the first connecting sleeve 340 is connected with the first valve seat assembly 210.
The first valve seat assembly 210 comprises a first valve seat 211, a first sealing washer 212, a first outer sealing washer 213 and a first inner sealing washer 214, the first valve seat 211 is of a hollow shaft sleeve-shaped structure with two open ends, one end of the first valve seat 211 is inserted into the first annular mounting groove 150, the other end of the first valve seat 211 extends into the valve cavity 110, the first sealing washer 212 is arranged at one end of the first valve seat 211 extending into the valve cavity 110, the first outer sealing washer 213 is arranged between the outer circumferential surface of the first valve seat 211 and the first annular mounting groove 150, the first inner sealing washer 214 is arranged between the inner circumferential surface of the first valve seat 211 and the first annular mounting groove 150, and the first outer sealing washer 213 and the first inner sealing washer 214 are used for enabling the first valve seat 211 to be in sealing contact with the wall of the first annular mounting groove 150.
The first valve seat 211 is composed of a first straight line 2111, a first circular truncated cone 2112 and a second straight line 2113 which are connected in sequence, the first straight line 2111 is positioned in the first annular mounting groove 150, the difference between the inside and the outside of the first straight line 2111 is equal to or slightly smaller than the groove width of the first annular mounting groove 150, if the difference between the inside and the outside of the first straight line 2111 is slightly smaller than the groove width of the first annular mounting groove 150, the difference between the inside and the outside of the first circular truncated cone 2113 is 0.1mm-2mm, the second straight line 2113 partially extends into the valve cavity 110, the outside diameter of the first straight line 2111 is larger than that of the second straight line 2113, the inside diameter of the first straight line 2111 is smaller than that of the second straight line 2113, the large diameter end of the first circular truncated cone 2112 is connected with the first straight line 2111, the small diameter end of the first circular truncated cone 2112 is connected with the second straight line 2113, the outside diameter of the large diameter end of the first circular truncated cone 2112 is equal to the inside diameter of the first straight line 2111, the outside diameter of the small diameter of the first circular truncated cone 2112 is equal to that of the second straight line 2113, the inner diameter of the small-diameter end of the first circular truncated cone section 2112 is equal to the inner diameter of the second straight-line section 2113, a first outer sealing ring 213 is arranged between the outer circumferential surface of the second straight-line section 2113 and the first annular mounting groove 150, a first inner sealing ring 214 is arranged between the inner circumferential surface of the second straight-line section 2113 and the first annular mounting groove 150, normally, the difference between the inner diameter and the outer diameter of the first outer sealing ring 213 is equal to the difference between the outer circumferential surface of the second straight-line section 2113 and the first annular mounting groove 150, and the difference between the inner diameter and the outer diameter of the first inner sealing ring 214 is equal to the difference between the inner circumferential surface of the second straight-line section 2113 and the first annular mounting groove 150.
The first valve seat assembly 210 further comprises a first outer baffle 215 and a first inner baffle 216, the first outer baffle 215 and the first inner baffle 216 are both arranged at the opening of the first annular mounting groove 150 and are respectively used for blocking a first outer sealing ring 213 and a first inner sealing ring 214, the first outer baffle 215 is annular, the first outer baffle 215 is sleeved on the second straight-line section 2113, the first inner baffle 216 is annular, the first inner baffle 216 is arranged in an inner cavity of the second straight-line section 2113, the outer diameter of the first inner baffle 216 is smaller than or equal to the inner diameter of the second straight-line section 2113, the inner diameter of the first inner baffle 216 is larger than or equal to the inner diameter of the liquid inlet channel 130, the length of the first outer sealing ring 213 is larger than or equal to the distance from the small diameter end of the first circular truncated cone section 2112 to the first outer baffle 215, the length of the first inner sealing ring 214 is larger than or equal to the distance from the small diameter end of the first circular truncated cone section 2112 to the first inner baffle 216, when the first adjusting assembly 210 is close to the sphere 230 through the first adjusting assembly 3, the first land 2112 and the first outer skirt 215 cooperate together to elastically deform the first outer seal ring 213, and the first land 2112 and the first inner skirt 216 cooperate together to elastically deform the first inner seal ring 214.
The first external baffle 215 is removably connected to the valve body 1, preferably: the first outer baffle 215 is detachably connected with the valve body 1 through bolts or screws, and the first inner baffle 216 is detachably connected with the valve body 1, preferably: the first inner baffle 216 is detachably connected with the valve body 1 through bolts or screws.
The first valve seat assembly 210 further includes an elastic element 217, the elastic element 217 is disposed between the first connecting sleeve 340 and the first valve seat 211, and two ends of the elastic element 217 are fixedly connected to the first connecting sleeve 340 and the first valve seat 211, respectively, and the elastic element 217 is preferably a cylindrical spring, but may also be a disc spring.
The first connecting rod 330 is detachably connected with the first movable sleeve 320, and preferably: the first connecting rod 330 is detachably connected with the first movable sleeve 320 through a bolt or a screw, and the first connecting rod 330 is detachably connected with the first connecting sleeve 340, preferably: the first connecting rod 330 is connected with the first connecting sleeve 340 through a screw thread, that is, the first connecting rod 330 is provided with an external screw thread, the first connecting sleeve 340 is provided with a mounting hole with an internal screw thread, and the part of the first connecting rod 330 with the external screw thread is screwed into the mounting hole with the internal screw thread of the first connecting sleeve 340.
The first adjusting sleeve 310 is provided with a convex ring 311, the convex ring 311 extends to be partially overlapped with the first movable sleeve 320, the first movable sleeve 320 is provided with an annular groove 321 in an area overlapped with the convex ring 311, the convex ring 311 is provided with a protrusion 3111 extending into the annular groove 321, the width of the protrusion 3111 is preferably equal to or slightly smaller than the groove width of the annular groove 321, if the width is slightly smaller than the groove width, the difference between the two is 0.1mm-1mm, and the annular groove 321, the protrusion 3111 and the convex ring 311 are matched together to realize the axial rotation connection of the first movable sleeve 320 and the first adjusting sleeve 310.
In the present invention, the structure of the second adjusting assembly 4 is the same as that of the first adjusting assembly 3, the structure of the second seat assembly 220 is the same as that of the first seat assembly 210, and the mounting and matching manners of the second adjusting assembly 4 and the second seat assembly 220 with the valve body 1 are the same as those of the first adjusting assembly 3 and the first seat assembly 210 with the valve body 1, so the detailed descriptions of the mounting and matching manners of the second adjusting assembly 4, the second seat assembly 220, and the second adjusting assembly 4 and the second seat assembly 220 with the valve body 1 are omitted.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. An upper-mounted ball valve comprises
The valve body (1) is provided with a valve cavity (110), and an upper opening (120), a liquid inlet channel (130) and a liquid outlet channel (140) which are respectively communicated with the valve cavity (110) are formed on the valve body (1);
the ball-valve seat assembly (2) comprises a first valve seat assembly (210) and a second valve seat assembly (220) which are arranged in the valve cavity (110) and are respectively positioned at the liquid inlet channel (130) and the liquid outlet channel (140), and a ball body (230) which is arranged between the first valve seat assembly (210) and the second valve seat assembly (220) and is in sealing contact with the first valve seat assembly (210) and the second valve seat assembly (220), wherein a conducting channel (231) is formed in the ball body (230), and when the ball body (230) is rotated to enable two ends of the conducting channel (231) to be respectively communicated with the liquid inlet channel (130) and the liquid outlet channel (140), the upper-mounted ball valve is conducted;
the method is characterized in that:
the valve body (1) is provided with a first adjusting assembly (3) and a second adjusting assembly (4), the first valve seat assembly (210) and the second valve seat assembly (220) are respectively connected with the first adjusting assembly (3) and the second adjusting assembly (4), the first adjusting assembly (3) and/or the second adjusting assembly (4) are/is adjusted to enable the distance between the first valve seat assembly (210) and the second valve seat assembly (220) to be larger and smaller, and when the first adjusting assembly (3) and the second adjusting assembly (4) are adjusted, the maximum distance between the first valve seat assembly (210) and the second valve seat assembly (220) is larger than the distance required for taking and assembling a ball body (230);
a first annular mounting groove (150) communicated with the valve cavity (110) is arranged in the valve body (1) around the liquid inlet channel (130), a first external thread is arranged on the outer surface of the valve body (1) in a region around the first annular mounting groove (150), the first adjusting component (3) comprises a first adjusting sleeve (310), a first movable sleeve (320), a first connecting rod (330) and a first connecting sleeve (340), a first internal thread is arranged on the inner wall surface of the first adjusting sleeve (310), the first adjusting sleeve (310) and the first movable sleeve (320) are sleeved on the region of the valve body (1) provided with the first external thread, a first internal thread on the first adjusting sleeve (310) is screwed with the first external thread on the valve body (1), and the first movable sleeve (320) is positioned between the first adjusting sleeve (310) and the ball body (230), the first movable sleeve (320) is axially and rotatably connected with the first adjusting sleeve (310), the first connecting sleeve (340) is arranged in the first annular mounting groove (150), a plurality of through grooves (160) communicated with the first annular mounting groove (150) are formed in the area of the valve body (1) provided with the first external threads, a first connecting rod (330) is arranged in each through groove (160), and two ends of each first connecting rod (330) are respectively connected with the first movable sleeve (320) and the first connecting sleeve (340); the first valve seat component (210) is arranged in the first annular mounting groove (150), the first valve seat component (210) is in sealing contact with the groove wall of the first annular mounting groove (150), and the first connecting sleeve (340) is connected with the first valve seat component (210);
the structure of the second valve seat assembly (220) is the same as that of the first valve seat assembly (210), and the structure of the second adjusting assembly (4) is the same as that of the first adjusting assembly (3).
2. A top-loading ball valve according to claim 1, wherein the first valve seat assembly (210) comprises a first valve seat (211), a first sealing gasket (212), a first outer sealing ring (213) and a first inner sealing ring (214), the first valve seat (211) is of a shaft sleeve-shaped structure with a hollow interior and two open ends, one end of the first valve seat (211) is inserted in the first annular mounting groove (150), the other end of the first valve seat (211) extends into the valve cavity (110), one end of the first valve seat (211) extending into the valve cavity (110) is provided with the first sealing washer (212), the first outer sealing ring (213) and the first inner sealing ring (214) are respectively arranged between the outer circumferential surface of the first valve seat (211) and the first annular mounting groove (150) and between the inner circumferential surface of the first valve seat (211) and the first annular mounting groove (150).
3. The top-loading ball valve according to claim 2, wherein the first valve seat (211) is composed of a first straight line section (2111), a first circular platform section (2112) and a second straight line section (2113) which are connected in sequence, the first straight line section (2111) is positioned in the first annular mounting groove (150), the second straight line section (2113) partially extends into the valve cavity (110), and the first outer sealing ring (213) and the first inner sealing ring (214) are respectively arranged between the outer circumferential surface of the second straight line section (2113) and the first annular mounting groove (150) and between the inner circumferential surface of the second straight line section (2113) and the first annular mounting groove (150); the first valve seat assembly (210) further comprises a first outer baffle (215) and a first inner baffle (216), wherein the first outer baffle (215) and the first inner baffle (216) are both arranged at the opening of the first annular mounting groove (150) and respectively block the first outer sealing ring (213) and the first inner sealing ring (214); upon adjustment of the first seat assembly (210) toward a ball (230) by the first adjustment assembly (3), the first frustoconical section (2112) and the first outer flapper (215) cooperate to elastically deform the first outer sealing ring (213), and the first frustoconical section (2112) and the first inner flapper (216) cooperate to elastically deform the first inner sealing ring (214).
4. A top-loading ball valve according to claim 3, wherein the first outer baffle (215) and the first inner baffle (216) are both detachably connected to the valve body (1).
5. A top-loading ball valve according to claim 2, wherein the first valve seat assembly (210) further comprises an elastic element (217), the elastic element (217) is arranged between the first connecting sleeve (340) and the first valve seat (211), and two ends of the elastic element (217) are fixedly connected with the first connecting sleeve (340) and the first valve seat (211), respectively.
6. A top-loading ball valve according to claim 5, wherein the resilient member (217) is a cylindrical spring.
7. A top-loading ball valve according to any one of claims 1 to 6, wherein the first connecting rod (330) and the first movable sleeve (320) and the first connecting rod (330) and the first connecting sleeve (340) are detachably connected.
8. A top-loading ball valve according to claim 1, wherein the first adjusting sleeve (310) is provided with a convex ring (311), the convex ring (311) extends to partially overlap with the first movable sleeve (320), the first movable sleeve (320) is provided with an annular groove (321) in a region overlapping with the convex ring (311), the convex ring (311) is provided with a protrusion (3111) extending into the annular groove (321), and the annular groove (321), the protrusion (3111) and the convex ring (311) cooperate together to realize the axial and rotational connection between the first movable sleeve (320) and the first adjusting sleeve (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374840.7A CN110159783B (en) | 2019-05-07 | 2019-05-07 | Top-mounted ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374840.7A CN110159783B (en) | 2019-05-07 | 2019-05-07 | Top-mounted ball valve |
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| Publication Number | Publication Date |
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| CN110159783A CN110159783A (en) | 2019-08-23 |
| CN110159783B true CN110159783B (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910374840.7A Active CN110159783B (en) | 2019-05-07 | 2019-05-07 | Top-mounted ball valve |
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| Country | Link |
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| CN (1) | CN110159783B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19945960A1 (en) * | 1998-10-20 | 2000-04-27 | Plasson Armaturen Gmbh | Plastic ball valve manufacture for use as e.g. gas stop valve, produces material bond between inner section and outer casing, by melt injection welding, precluding all possibility of through-leakage between these parts |
| US6916011B2 (en) * | 2000-02-03 | 2005-07-12 | Kitz Corporation | Ball valve and production method therefor |
| CN102094992B (en) * | 2011-03-18 | 2012-10-10 | 温州科赛阀门有限公司 | Fixed ball valve for top assembling |
| CN202302263U (en) * | 2011-09-30 | 2012-07-04 | 中联重科股份有限公司 | Cartridge valve cover plate and cartridge valve comprising same |
| CN103423506B (en) * | 2012-05-22 | 2015-09-23 | 徐学新 | A kind of many gyration type hydraulic operated valves |
| CN103711933B (en) * | 2013-12-31 | 2016-06-08 | 上海凯工阀门有限公司 | Upper dress formula double containment three-pointer valve |
| CN205806555U (en) * | 2016-06-25 | 2016-12-14 | 浙江百鼎斯阀业有限公司 | High leakproofness ball valve |
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2019
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| CN110159783A (en) | 2019-08-23 |
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Effective date of registration: 20220811 Address after: No. 138, Valve Industrial Park, Longhua Town, Longhua County, Chengde City, Hebei Province, 068162 Applicant after: Chengde Chenggao valve fittings manufacturing Co.,Ltd. Address before: No. 137, Valve Industrial Park, Longhua County, Chengde City, Hebei Province, 068150 Applicant before: CHENGDE HIGH MIDDLE PRESSURE VALVE AND PIPE FITTINGS GROUP Co.,Ltd. |
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