CN110259983B - Ball valve with movable valve seat - Google Patents
Ball valve with movable valve seat Download PDFInfo
- Publication number
- CN110259983B CN110259983B CN201910588521.6A CN201910588521A CN110259983B CN 110259983 B CN110259983 B CN 110259983B CN 201910588521 A CN201910588521 A CN 201910588521A CN 110259983 B CN110259983 B CN 110259983B
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- Prior art keywords
- sealing ball
- flap
- valve
- conical surface
- sleeve
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
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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
- F16K5/0647—Spindles or actuating means
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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
Abstract
The invention discloses a ball valve with a movable valve seat, which comprises a shell, wherein a through mounting hole is formed in the shell, a left end cover is arranged at the left end of the shell, and a right end cover is arranged at the right end of the shell; the left end cover is internally provided with an inlet hole communicated with the mounting hole, and the right end cover is internally provided with an outlet hole communicated with the mounting hole; the shell is provided with a driving mechanism for driving the left sealing ball flap to move leftwards and the right sealing ball flap to move rightwards; the ball valve with the movable valve seat is simple to use, convenient and safe, and the ball body cannot be abraded.
Description
Technical Field
The invention belongs to the technical field of pipeline valves, and particularly relates to a ball valve with a movable valve seat.
Background
In industrial or domestic infrastructure, media are usually conveyed by means of pipelines, which are regulated as a result of pressure or temperature changes, and regulating means, in particular ball valves, are used in the pipelines for regulating the flow in order to ensure optimum operating conditions and environmental safety. Ball valves are generally valves that use a ball with a circular passage as the opening and closing element, and the ball performs the opening and closing action with the rotation of the valve body. The opening and closing part of the ball valve is a ball body with a through hole and rotates around an axis vertical to the channel, so that the aim of opening and closing the channel is fulfilled. The ball valve has the advantages of small fluid resistance, simple structure, tightness, reliability, convenient operation, rapid opening and closing, wide application range and the like, and is widely applied to various departments of petroleum, chemical industry, power generation, paper making, atomic energy, aviation, rockets and the like, and daily life of people. However, in order to ensure that the internal leakage does not occur, the existing ball valve needs to tightly press the ball body, namely the closing member, on the valve seat during installation, the torque is large during opening and closing, the ball body generates friction with the valve seat during rotation, the abrasion is serious, the leakage is easy to cause, the working reliability of the ball valve is reduced, and the service life of the ball valve is shortened.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a ball valve which is simple, convenient and safe to use and does not wear a ball body.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a ball valve with a movable valve seat comprises a shell, wherein a through mounting hole is formed in the shell, a left end cover is mounted at the left end of the shell, and a right end cover is mounted at the right end of the shell; an inlet hole communicated with the mounting hole is formed in the left end cover, an outlet hole communicated with the mounting hole is formed in the right end cover, a left sealing ball flap is arranged at the inlet hole in the mounting hole, a right sealing ball flap is arranged at the outlet hole in the mounting hole, a ball body is arranged between the left sealing ball flap and the right sealing ball flap, and a communication hole used for communicating the inlet hole with the outlet hole is formed in the ball body; an upper sliding groove and a lower sliding groove are axially arranged on the inner side wall of the mounting hole in the shell along the mounting hole, the upper ends of the left sealing ball flap and the right sealing ball flap are respectively provided with an upper bulge connected in the upper sliding groove in a sliding manner, and the lower ends of the left sealing ball flap and the right sealing ball flap are respectively provided with a lower bulge connected in the lower sliding groove in a sliding manner; a left annular groove communicated with the mounting hole is formed in the inner circumferential side wall of the inlet hole, a left annular protrusion extending into the left annular groove is formed in the left side of the left sealing ball flap, and a plurality of left springs used for forcing the left sealing ball flap to be pressed on a ball body are arranged between the left end of the left annular groove and the left annular protrusion; a right annular groove communicated with the mounting hole is formed in the inner circumferential side wall of the outlet hole, a right annular protrusion extending into the right annular groove is formed in the right side of the right sealing ball flap, and a plurality of right springs used for forcing the right sealing ball flap to be tightly pressed on the ball body are arranged between the right end of the right annular groove and the right annular protrusion; the ball body is provided with a valve rod which penetrates out of the shell upwards along the vertical direction; and the shell is provided with a driving mechanism for driving the left sealing ball flap to move leftwards and the right sealing ball flap to move rightwards.
According to the technical scheme, when the ball valve is used, the left sealing ball flap is driven to move leftwards through the driving mechanism to compress the left spring, and the right sealing ball flap is driven to move rightwards to compress the right spring; then the valve rod drives the ball body to rotate to enable the communicating hole to be communicated with or disconnected from the inlet hole and the outlet hole; after the rotation of the ball body is finished, the driving mechanism is controlled again to enable the left sealing ball clack to be tightly pressed on the ball body under the action of the left spring, and meanwhile, the right sealing ball clack is tightly pressed on the ball body under the action of the right spring, so that the operation of the ball valve is finished; the ball body of the ball valve can not generate friction with the left sealing ball clack and the right sealing ball clack in the rotating process, abrasion can not be generated, the working reliability of the ball valve is improved, and the service life of the ball valve is prolonged.
In a further technical scheme, the driving mechanism comprises a sleeve, a mandril, a first handle and a second handle, the sleeve is sleeved on the valve rod, the upper end of the sleeve extends out of the shell, and the lower end of the sleeve is positioned between the upper ends of the left sealing ball clack and the right sealing ball clack; a through hole is formed in the valve rod in a penetrating mode along the axial direction of the valve rod, the ejector rod is located in the through hole, the upper end of the ejector rod extends out of the through hole, and the lower end of the ejector rod is located between the lower ends of the left sealing ball flap and the right sealing ball flap; the inner side wall of the upper end of the left sealing ball valve is provided with an upper left conical surface, and the inner side wall of the lower end of the left sealing ball valve is provided with a lower left conical surface which is symmetrical to the upper left conical surface; the inner side wall of the upper end of the right sealing ball valve is provided with a right upper conical surface, and the inner side wall of the lower end of the right sealing ball valve is provided with a right lower conical surface which is symmetrical to the right upper conical surface; the lower end of the sleeve is provided with a first boss along the radial direction, and the first boss is matched with the left upper conical surface and the right upper conical surface and used for pushing the left sealing ball flap to move leftwards and the right sealing ball flap to move rightwards when the sleeve moves upwards; the lower end of the ejector rod is provided with a second boss along the radial direction, and the second boss is matched with the left lower conical surface and the right lower conical surface and used for pushing the left sealing ball flap to move leftwards and the right sealing ball flap to move rightwards when the ejector rod moves downwards;
the upper end of the valve rod is provided with a convex block along the radial direction, one end of the first handle is hinged on the convex block, a rod body on the first handle is provided with a first sliding groove, the upper end of the ejector rod is provided with a first sliding pin along the radial direction, and the first sliding pin is positioned in the first sliding groove; one end of the second handle is hinged to the bump, a second sliding groove is formed in the rod body of the second handle, a second sliding pin is arranged at the upper end of the sleeve along the radial direction of the sleeve, and the second sliding pin is located in the second sliding groove.
Through above-mentioned technical scheme, pinch the first handle and second handle with the hand for first handle promotes the ejector pin downstream through the cooperation of first spout and first smooth round pin, makes the second handle drive sleeve upward movement through the cooperation of second spout and the smooth round pin of second simultaneously. When the ejector rod moves downwards, the left sealing ball flap is pushed to move leftwards to compress the left spring, and the right sealing ball flap moves rightwards to compress the right spring through the matching of the second boss and the left lower conical surface and the right lower conical surface; when the sleeve moves upwards, the first boss is matched with the left upper conical surface and the right upper conical surface to push the left sealing ball flap to move leftwards to compress the left spring, and the right sealing ball flap to move rightwards to compress the right spring; thereby causing the left and right sealing lobes to move away from the sphere. When the first handle and the second handle are loosened, the left sealing ball valve is pressed on the ball body under the action of the left spring, the right sealing ball valve is pressed on the ball body under the action of the right spring, and the first handle and the second handle are reset.
In a further technical scheme, a circular cutting groove is formed in the outer side of the sleeve at the upper end of the shell, a limiting sliding groove is formed in the side wall of the sleeve along the axial direction of the sleeve, a limiting pin penetrating through the limiting sliding groove is arranged on the circumferential side face of the valve rod, and the limiting pin is located in the circular cutting groove; a cover plate is arranged at an opening at the upper end of the circular cutting groove; this arrangement enables the ball to be positioned in the axial direction of the mounting hole.
In a further technical scheme, a plurality of first spring holes are uniformly formed in the left end of the left annular groove at intervals along the axial direction of the inlet hole, and the left spring is positioned in the first spring holes; and a plurality of second spring holes are uniformly formed in the left end of the right annular groove at intervals along the axial direction of the outlet hole, and the right spring is positioned in the second spring holes.
(III) advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages:
when the ball valve is used, the left sealing ball flap is driven to move leftwards by the driving mechanism to compress the left spring, and the right sealing ball flap is driven to move rightwards to compress the right spring; then the valve rod drives the ball body to rotate to enable the communicating hole to be communicated with or disconnected from the inlet hole and the outlet hole; after the rotation of the ball body is finished, the driving mechanism is controlled again to enable the left sealing ball clack to be tightly pressed on the ball body under the action of the left spring, and meanwhile, the right sealing ball clack is tightly pressed on the ball body under the action of the right spring, so that the operation of the ball valve is finished; the ball body of the ball valve can not generate friction with the left sealing ball clack and the right sealing ball clack in the rotating process, abrasion can not be generated, the working reliability of the ball valve is improved, and the service life of the ball valve is prolonged.
Drawings
FIG. 1 is a perspective view of a movable ball valve with a movable valve seat according to the present invention;
FIG. 2 is a front sectional view of a movable ball valve of the present invention;
FIG. 3 is a perspective view of the left sealing ball flap of the present invention;
FIG. 4 is a perspective view of the right sealing ball flap of the present invention;
fig. 5 is a perspective view of the sphere of the present invention.
Detailed Description
Referring to fig. 1-5, a ball valve with a movable valve seat includes a housing 3, a mounting hole 301 penetrating left and right is formed in the housing 3, a left end cap 2a is installed at the left end of the housing 3, and a right end cap 2b is installed at the right end of the housing 3; an inlet hole 2a1 communicated with the mounting hole 301 is formed in the left end cover 2a, an outlet hole 2b1 communicated with the mounting hole 301 is formed in the right end cover 2b, a left sealing ball flap 5a is arranged at the position of an inlet hole 2a1 in the mounting hole 301, a right sealing ball flap 5b is arranged at the position of an outlet hole 2b1, a ball body 1 is arranged between the left sealing ball flap 5a and the right sealing ball flap 5b, and a communication hole 101 used for communicating the inlet hole 2a1 with the outlet hole 2b1 is formed in the ball body 1; an upper sliding groove 302 and a lower sliding groove 303 are axially arranged on the inner side wall of the mounting hole 301 in the shell 3 along the mounting hole, the upper ends of the left sealing ball flap 5a and the right sealing ball flap 5b are respectively provided with an upper bulge 501 which is connected in the upper sliding groove 302 in a sliding manner, and the lower ends of the left sealing ball flap and the right sealing ball flap are respectively provided with a lower bulge 502 which is connected in the lower sliding groove 303 in a sliding manner; a left annular groove 2a2 communicated with the mounting hole 301 is formed in the inner circumferential side wall of the inlet hole 2a1, a left annular protrusion 5a1 extending into the left annular groove 2a2 is formed in the left side of the left sealing ball flap 5a, and a plurality of left springs 11a used for forcing the left sealing ball flap 5a to be pressed on the ball body 1 are arranged between the left end of the left annular groove 2a2 and the left annular protrusion 5a 1; a right annular groove 2b2 communicated with the mounting hole 301 is formed in the inner circumferential side wall of the outlet hole 2b1, a right annular protrusion 5b1 extending into the right annular groove 2b2 is formed in the right side of the right sealing ball flap 5b, and a plurality of right springs 11b for forcing the right sealing ball flap 5b to be pressed on the ball body 1 are arranged between the right end of the right annular groove 2b2 and the right annular protrusion 5b 1; the ball body 1 is provided with a valve rod 10 which penetrates out of the shell 3 upwards along the vertical direction; and a driving mechanism for driving the left sealing ball flap 5a to move leftwards and the right sealing ball flap 5b to move rightwards is arranged on the shell 3.
The driving mechanism comprises a sleeve 6, a mandril 4, a first handle 9 and a second handle 8, the sleeve 6 is sleeved on the valve rod 10, the upper end of the sleeve 6 extends out of the shell 3, and the lower end of the sleeve 6 is positioned between the upper ends of the left sealing ball clack 5a and the right sealing ball clack 5 b; a through hole 10a penetrating through the valve rod 10 is formed in the valve rod along the axial direction of the valve rod, the ejector rod 4 is located in the through hole 10a, the upper end of the ejector rod 4 extends out of the through hole 10a, and the lower end of the ejector rod 4 is located between the lower ends of the left sealing ball flap 5a and the right sealing ball flap 5 b; the inner side wall of the upper end of the left sealing ball flap 5a is provided with a left upper conical surface 5a2, and the inner side wall of the lower end is provided with a left lower conical surface 5a3 which is symmetrical to the left upper conical surface 5a 2; the inner side wall of the upper end of the right sealing ball flap 5b is provided with a right upper conical surface 5b2, and the inner side wall of the lower end is provided with a right lower conical surface 5b3 which is symmetrical to the right upper conical surface 5b 2; the lower end of the sleeve 6 is provided with a first boss 6a along the radial direction, and the first boss 6a is matched with the left upper conical surface 5a2 and the right upper conical surface 5b2 to push the left sealing ball flap 5a to move leftwards and the right sealing ball flap 5b to move rightwards when the sleeve 6 moves upwards; the lower end of the ejector rod 4 is provided with a second boss 4a along the radial direction, and the second boss 4a is matched with the left lower conical surface 5a3 and the right lower conical surface 5b3 to push the left sealing ball flap 5a to move leftwards and the right sealing ball flap 5b to move rightwards when the ejector rod 4 moves downwards.
A convex block 10b is arranged at the upper end of the valve rod 10 along the radial direction of the valve rod, one end of the first handle 9 is hinged on the convex block 10b, a first sliding groove 9a is arranged on the rod body of the first handle 9, a first sliding pin 401 is arranged at the upper end of the ejector rod 4 along the radial direction of the ejector rod, and the first sliding pin 401 is positioned in the first sliding groove 9 a; one end of the second handle 8 is hinged to the projection 10b, a second sliding groove 8a is formed in the rod body of the second handle 8, a second sliding pin 601 is arranged at the upper end of the sleeve 6 along the radial direction of the sleeve, and the second sliding pin 601 is located in the second sliding groove 8 a.
A circular cutting groove 3a is formed in the outer side of a sleeve 6 at the upper end of the shell 3, a limiting sliding groove 6b is formed in the side wall of the sleeve 6 along the axial direction of the sleeve, a limiting pin 1a penetrating through the limiting sliding groove 6b is arranged on the circumferential side face of the valve rod 10, and the limiting pin 1a is located in the circular cutting groove 3 a; a cover plate 12 is arranged at the opening of the upper end of the circular cutting groove 3 a. This arrangement enables the ball 1 to be positioned in the axial direction of the mounting hole 301.
In addition, the left end of the left annular groove 2a2 is provided with a plurality of first spring holes 2a3 at even intervals along the axial direction of the inlet hole 2a1, and the left spring 11a is positioned in the first spring hole 2a 3; the left end of the right annular groove 2b2 is provided with a plurality of second spring holes 2b3 at even intervals in the axial direction of the outlet hole 2b1, and the right spring 11b is located in the second spring hole 2b 3.
When the ball valve is used, the first handle 9 and the second handle 8 are firstly pinched by hands, so that the first handle 9 pushes the ejector rod 4 to move downwards through the matching of the first sliding chute 9a and the first sliding pin 401, and meanwhile, the second handle 8 drives the sleeve to move upwards through the matching of the second sliding chute 8a and the second sliding pin 601. When the ejector rod 4 moves downwards, the left sealing ball flap 5a is pushed to move leftwards to compress the left spring 11a and the right sealing ball flap 5b is pushed to move rightwards to compress the right spring 11b through the cooperation of the second boss 4a, the left lower conical surface 5a3 and the right lower conical surface 5b 3; when the sleeve 6 moves upwards, the first boss 6a is matched with the left upper conical surface 5a2 and the right upper conical surface 5b2, so that the left sealing ball flap 5a is pushed to move leftwards to compress the left spring 11a, and the right sealing ball flap 5b is pushed to move rightwards to compress the right spring 11 b; thereby causing the left and right sealing lobes 5a, 5b to move away from the ball 1. The first and second handles 9 and 8 are then rotated about the valve rod 10, and the ball 1 is rotated by the valve rod 10 to connect or disconnect the communication hole 101 to or from the inlet hole 2a1 and the outlet hole 2b 1. After the sphere 1 is rotated, the first handle 9 and the second handle 8 are released, the left sealing ball flap 5a is pressed on the sphere 1 under the action of the left spring 11a, the right sealing ball flap 5b is pressed on the sphere 1 under the action of the right spring 11b, and the first handle 9 and the second handle 8 are reset, so that the operation of the ball valve is completed. The ball body 1 of the ball valve does not generate friction with the left sealing ball clack 5a and the right sealing ball clack 5b in the rotating process, abrasion is avoided, the working reliability of the ball valve is improved, and the service life of the ball valve is prolonged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A ball valve with a movable valve seat comprises a shell, wherein a through mounting hole is formed in the shell, a left end cover is mounted at the left end of the shell, and a right end cover is mounted at the right end of the shell; the left end cover is internally provided with an inlet hole communicated with the mounting hole, and the right end cover is internally provided with an outlet hole communicated with the mounting hole; an upper sliding groove and a lower sliding groove are axially arranged on the inner side wall of the mounting hole in the shell along the mounting hole, the upper ends of the left sealing ball flap and the right sealing ball flap are respectively provided with an upper bulge connected in the upper sliding groove in a sliding manner, and the lower ends of the left sealing ball flap and the right sealing ball flap are respectively provided with a lower bulge connected in the lower sliding groove in a sliding manner; a left annular groove communicated with the mounting hole is formed in the inner circumferential side wall of the inlet hole, a left annular protrusion extending into the left annular groove is formed in the left side of the left sealing ball flap, and a plurality of left springs used for forcing the left sealing ball flap to be pressed on a ball body are arranged between the left end of the left annular groove and the left annular protrusion; a right annular groove communicated with the mounting hole is formed in the inner circumferential side wall of the outlet hole, a right annular protrusion extending into the right annular groove is formed in the right side of the right sealing ball flap, and a plurality of right springs used for forcing the right sealing ball flap to be tightly pressed on the ball body are arranged between the right end of the right annular groove and the right annular protrusion; the ball body is provided with a valve rod which penetrates out of the shell upwards along the vertical direction; the shell is provided with a driving mechanism for driving the left sealing ball flap to move leftwards and the right sealing ball flap to move rightwards;
the driving mechanism comprises a sleeve, a push rod, a first handle and a second handle, the sleeve is sleeved on the valve rod, the upper end of the sleeve extends out of the shell, and the lower end of the sleeve is positioned between the upper ends of the left sealing ball flap and the right sealing ball flap; a through hole is formed in the valve rod in a penetrating mode along the axial direction of the valve rod, the ejector rod is located in the through hole, the upper end of the ejector rod extends out of the through hole, and the lower end of the ejector rod is located between the lower ends of the left sealing ball flap and the right sealing ball flap; the inner side wall of the upper end of the left sealing ball valve is provided with an upper left conical surface, and the inner side wall of the lower end of the left sealing ball valve is provided with a lower left conical surface which is symmetrical to the upper left conical surface; the inner side wall of the upper end of the right sealing ball valve is provided with a right upper conical surface, and the inner side wall of the lower end of the right sealing ball valve is provided with a right lower conical surface which is symmetrical to the right upper conical surface; the lower end of the sleeve is provided with a first boss along the radial direction, and the first boss is matched with the left upper conical surface and the right upper conical surface and used for pushing the left sealing ball flap to move leftwards and the right sealing ball flap to move rightwards when the sleeve moves upwards; the lower end of the ejector rod is provided with a second boss along the radial direction, and the second boss is matched with the left lower conical surface and the right lower conical surface and used for pushing the left sealing ball flap to move leftwards and the right sealing ball flap to move rightwards when the ejector rod moves downwards; the upper end of the valve rod is provided with a convex block along the radial direction, one end of the first handle is hinged on the convex block, a rod body on the first handle is provided with a first sliding groove, the upper end of the ejector rod is provided with a first sliding pin along the radial direction, and the first sliding pin is positioned in the first sliding groove; one end of the second handle is hinged to the bump, a second sliding groove is formed in the rod body of the second handle, a second sliding pin is arranged at the upper end of the sleeve along the radial direction of the sleeve, and the second sliding pin is located in the second sliding groove.
2. The movable ball valve according to claim 1, wherein the upper end of the housing has a circular groove on an outer side of the sleeve, the sidewall of the sleeve has a limiting sliding groove along an axial direction thereof, and the circumferential side of the valve stem has a limiting pin passing through the limiting sliding groove and located in the circular groove; and a cover plate is arranged at the opening at the upper end of the circular cutting groove.
3. The valve seat movable ball valve according to claim 1, wherein the left end of the left annular groove is provided with a plurality of first spring holes at even intervals along the axial direction of the inlet hole, and the left spring is located in the first spring holes; and a plurality of second spring holes are uniformly formed in the left end of the right annular groove at intervals along the axial direction of the outlet hole, and the right spring is positioned in the second spring holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588521.6A CN110259983B (en) | 2019-07-02 | 2019-07-02 | Ball valve with movable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588521.6A CN110259983B (en) | 2019-07-02 | 2019-07-02 | Ball valve with movable valve seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259983A CN110259983A (en) | 2019-09-20 |
| CN110259983B true CN110259983B (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910588521.6A Active CN110259983B (en) | 2019-07-02 | 2019-07-02 | Ball valve with movable valve seat |
Country Status (1)
| Country | Link |
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| CN (1) | CN110259983B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442110A (en) * | 2020-04-30 | 2020-07-24 | 陈少同 | Ball valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2142416A (en) * | 1983-06-30 | 1985-01-16 | Acf Ind Inc | Valve seat for fluid flow control valve |
| CN103470804A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Safety level electric ball valve |
| CN203743490U (en) * | 2014-03-15 | 2014-07-30 | 永嘉县新然阀门有限公司 | Plum-blossom-shaped forged steel ball valve |
| CN204344996U (en) * | 2014-12-30 | 2015-05-20 | 丽水超特阀门有限公司 | T-shaped threeway four valve seat valve |
| CN208281543U (en) * | 2018-04-18 | 2018-12-25 | 广东鸿阀阀门有限公司 | A kind of seal ball-valve |
-
2019
- 2019-07-02 CN CN201910588521.6A patent/CN110259983B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2142416A (en) * | 1983-06-30 | 1985-01-16 | Acf Ind Inc | Valve seat for fluid flow control valve |
| CN103470804A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Safety level electric ball valve |
| CN203743490U (en) * | 2014-03-15 | 2014-07-30 | 永嘉县新然阀门有限公司 | Plum-blossom-shaped forged steel ball valve |
| CN204344996U (en) * | 2014-12-30 | 2015-05-20 | 丽水超特阀门有限公司 | T-shaped threeway four valve seat valve |
| CN208281543U (en) * | 2018-04-18 | 2018-12-25 | 广东鸿阀阀门有限公司 | A kind of seal ball-valve |
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| Publication number | Publication date |
|---|---|
| CN110259983A (en) | 2019-09-20 |
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Effective date of registration: 20200901 Address after: 325024 No. 32 Qiang Road, Yongxing street, Longwan District, Wenzhou, Zhejiang Applicant after: LIANGGONG VALVE GROUP Co.,Ltd. Address before: 315040 Room 408-1, 265, 75 blocks, Huangguxincun, Baihe Street, Yinzhou District, Ningbo City, Zhejiang Province Applicant before: Li Jun |
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