CN218718966U - Hard seal regulation type cut-off ball valve - Google Patents
Hard seal regulation type cut-off ball valve Download PDFInfo
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- CN218718966U CN218718966U CN202223104629.XU CN202223104629U CN218718966U CN 218718966 U CN218718966 U CN 218718966U CN 202223104629 U CN202223104629 U CN 202223104629U CN 218718966 U CN218718966 U CN 218718966U
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Abstract
The utility model discloses a hard seal adjusting type cutting ball valve, wherein an inlet channel and an outlet channel are arranged on a valve body; the valve is characterized by further comprising a ball core which is arranged on the valve rod and is integrally formed with the valve rod, and a detachable valve seat which is arranged on the inlet channel and the outlet channel and is matched with the ball core. The utility model adopts the integral valve body and the upper ball core, the ball core is arranged from the upper end of the valve body, when the ball core needs to be checked and maintained, the maintenance and the inspection work can be carried out on the ball core only by detaching the valve cover from the valve body, and the online check and the maintenance can be carried out without detaching the whole valve from the pipeline; through the adoption with the ball core of valve rod integral type, eliminate the assembly clearance between split type ball core and the valve rod, reduce the concentricity deviation of the sealed face of ball core and valve body guiding axle hole to improve the leakproofness between ball core and the disk seat.
Description
Technical Field
The utility model relates to a cut off the ball valve, specifically indicate a ball valve is cut off to sealed regulation type firmly.
Background
The hard seal adjusting type ball valve in the market at present generally has the problems of poor sealing performance and low adjusting precision, and particularly has the problem of leakage caused by the generation of a gap between a valve seat and a ball core sealing surface due to the abrasion of the sealing surface after long-term use, so that the tightness and the service life of the valve when the valve is closed are influenced;
and the split type structure is adopted with the valve rod to a large extent among the prior art, although split type structure only need change the ball core after the ball core wearing and tearing can, but there is certain fit clearance between split type ball core and the valve rod, the clearance then can lead to the sealed sphere of ball core and the direction shaft hole of valve body to produce certain concentricity deviation and lead to the leakproofness not good. To this end, a hard seal adjustment type shut-off ball valve is proposed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problems and providing a hard seal regulation type cut-off ball valve.
In order to achieve the purpose, the utility model provides a hard seal regulation type cut-off ball valve, which comprises a valve body, a valve cover arranged on the valve body, a bracket arranged on the valve cover, an actuating mechanism arranged on the bracket and a valve rod movably arranged in the valve body and the valve cover and connected with the actuating mechanism; the valve body is provided with an inlet channel and an outlet channel; the valve is characterized by further comprising a ball core which is arranged on the valve rod and is integrally formed with the valve rod, and a detachable valve seat which is arranged on the inlet channel and the outlet channel and is matched with the ball core.
Further preferably, still be equipped with the locating hole with the valve rod adaptation on the valve body, the valve rod tip is in the locating hole and installs the axle sleeve between valve rod tip and the locating hole, also installs the axle sleeve between valve rod and the valve gap, still installs the axle sleeve retainer plate of installing the axle sleeve spacing between valve rod and valve gap on the valve gap.
Further preferably, a packing is further installed between the valve rod and the valve cover, a packing gland is further installed on the valve cover, and the packing is tightly installed between the valve rod and the valve cover through the packing gland.
Further preferably, a compression nut and an adjusting nut are installed on the inlet channel and the outlet channel through threads, a disc spring, a compression ring and a sealing ring are further installed among the compression nut, the valve seat and the valve body, the valve seat is installed in the valve body through the compression nut in a compression mode, and one end of the valve seat is attached to the ball core.
Further preferably, a V-shaped runner window is arranged on the ball core.
The utility model adopts the integral valve body and the upper ball core, the ball core is arranged from the upper end of the valve body, when the ball core needs to be checked and maintained, the maintenance and the inspection work can be carried out on the ball core only by detaching the valve cover from the valve body, and the online check and the maintenance can be carried out without detaching the whole valve from the pipeline;
by adopting the ball core integrated with the valve rod, the assembly gap between the split ball core and the valve rod is eliminated, and the concentricity deviation between the sealing surface of the ball core and the guide shaft hole of the valve body is reduced, so that the sealing property between the ball core and the valve seat is improved;
the valve seats matched with the ball cores are arranged on the two sides of the inlet channel and the outlet channel of the valve body, so that bidirectional sealing is performed, the sealing performance between the ball cores and the valve seats is improved, and leakage is prevented;
through setting up the locating hole on the valve body, make the valve rod tip of ball core one side stretch into in the locating hole with the axle sleeve cooperation, the axle sleeve cooperation on the valve rod of opposite side and the disk seat to play two-way spacing to the valve rod of ball core both sides, improve the stability when ball core rotates, through the setting of axle sleeve, reduce the frictional force when valve rod rotates, improve life simultaneously.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a local structure of the joint of the valve seat and the valve body;
FIG. 3 is a schematic view of the structure of the central core of the present invention;
fig. 4 is a schematic structural diagram of the valve rod and the ball core of the present invention.
Illustration of the drawings: 1. a valve body; 11. an inlet channel; 12. an outlet channel; 13. positioning holes; 14. a shaft sleeve; 15. a shaft sleeve fixing ring; 16. a compression nut; 17. adjusting the nut; 2. a valve cover; 3. a support; 4. an actuator; 5. a valve stem; 6. a ball core; 61. a V-shaped runner window; 7. a valve seat; 71. a disc spring; 72. pressing a ring; 73. a seal ring; 8. a filler; 81. and (4) a packing gland.
Detailed Description
The hard seal adjusting type cut-off ball valve of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-4, a hard seal adjustment type cut-off ball valve includes a valve body 1, a valve cover 2 mounted on the valve body 1, a bracket 3 mounted on the valve cover 2, an actuator 4 mounted on the bracket 3, and a valve rod 5 movably mounted in the valve body 1 and the valve cover 2 and connected to the actuator 4; an inlet channel 11 and an outlet channel 12 are arranged on the valve body 1; the valve is characterized by also comprising a ball core 6 which is arranged on the valve rod 5 and is integrally formed with the valve rod 5, and a detachable valve seat 7 which is arranged on the inlet channel 11 and the outlet channel 12 and is matched with the ball core 6; by adopting the integral valve body 1 and the arrangement of the upper-mounted ball core 6, the ball core 6 is mounted from the upper end of the valve body 1, when the ball core 6 needs to be inspected and maintained, the maintenance and the inspection work can be carried out on the ball core 6 only by dismounting the valve cover 2 from the valve body 1, and the online inspection and the maintenance can be carried out without dismounting the whole valve from a pipeline;
by adopting the ball core 6 integrated with the valve rod, the assembly gap between the split ball core 6 and the valve rod 5 is eliminated, and the concentricity deviation between the sealing surface of the ball core 6 and the guide shaft hole of the valve body 1 is reduced, so that the sealing property between the ball core 6 and the valve seat 7 is improved;
the valve seats 7 matched with the ball cores 6 are arranged on the two sides of the inlet channel 11 and the outlet channel 12 of the valve body 1, so that bidirectional sealing is performed, the sealing performance between the ball cores 6 and the valve seats 7 is improved, and leakage is prevented.
The valve body 1 is also provided with a positioning hole 13 matched with the valve rod 5, the end part of the valve rod 5 is positioned in the positioning hole 13, a shaft sleeve 14 is arranged between the end part of the valve rod 5 and the positioning hole 13, the shaft sleeve 14 is also arranged between the valve rod 5 and the valve cover 2, and the valve cover 2 is also provided with a shaft sleeve fixing ring 15 which is used for limiting and installing the shaft sleeve 14 between the valve rod 5 and the valve cover 2 by welding; through setting up locating hole 13 on valve body 1, make 5 tip of valve rod of 6 one sides of ball core stretch into in locating hole 13 with the axle sleeve cooperation, the axle sleeve 14 cooperation on the valve rod 5 of opposite side and the disk seat 7 to play two-way spacing to the valve rod 5 of 6 both sides of ball core, stability when improving the rotation of ball core 6, through axle sleeve 14's setting, frictional force when reducing valve rod 5 and rotating improves life simultaneously.
Further, a packing 8 is further installed between the valve rod 5 and the valve cover 2, a packing gland 81 is further installed on the valve cover 2, and the packing 8 is tightly installed between the valve rod 5 and the valve cover 2 through the packing gland 81.
Further, a compression nut 16 and an adjusting nut 17 are installed on the inlet channel 11 and the outlet channel 12 through threads, a disc spring 71, a pressing ring 72 and a sealing ring 73 are further installed among the compression nut 16, the valve seat 7 and the valve body 1, the valve seat 7 is installed in the valve body 1 through the compression nut 16 in a compression mode, and one end of the valve seat 7 is attached to the ball core 6; by rotating the compression nut 16, the compression nut 16 moves forwards through the matching of the threads between the compression nut and the valve body 1, and forms a forward thrust on the disc spring 71, the pressing ring 72 and the sealing ring 73 in the forward movement process, so that a forward thrust is formed on the valve seat 7, the valve seat 7 is tightly attached to the sealing surface of the ball core 6, meanwhile, the valve seat 7 has a certain elastic displacement through the arrangement of the disc spring 71, and after the sealing surface on the valve seat 7 or the ball core 6 is worn, the position of the valve seat 7 can be slightly adjusted in a self-adaptive manner through the elasticity of the disc spring 71, so that the sealing performance between the valve seat 7 and the ball core 6 is improved; through the setting of adjusting nut 17, install adjusting nut 17 in valve body 1 through the spiral, form spacingly to gland nut 16's position, avoid taking place to become flexible in the use and lead to producing the clearance and leading to leaking between disk seat 7 and the ball core 6.
More preferably, the ball core 6 is provided with a V-shaped flow channel window 61 with an equal specific flow characteristic; the medium flow rate is controlled and shut off by controlling the rotation angle of the core 6 by providing the V-shaped flow path window 61 having the equal specific flow rate characteristic.
The utility model discloses a use: firstly, the valve is installed on a pipeline, when the valve needs to be opened or the medium flow needs to be adjusted, an operator drives the valve rod 5 to rotate through the control execution mechanism 4, the valve rod 5 drives the ball core 6 to rotate, the ball core 6 drives the V-shaped flow channel window 61 to be communicated with a flow channel in the valve seat 7 in the rotating process, so that the flow channel is opened, and the medium flow is controlled by controlling the size of the flow channel at the position where the V-shaped flow channel window 61 is communicated with the flow channel of the valve seat 7.
The scope of the present invention is not limited to the above embodiments and their variations. The present invention is not limited to the above embodiments, and other modifications and substitutions may be made by those skilled in the art.
Claims (5)
1. A hard seal adjustment type cut-off ball valve comprises a valve body (1), a valve cover (2) arranged on the valve body (1), a support (3) arranged on the valve cover (2), an actuating mechanism (4) arranged on the support (3) and a valve rod (5) which is movably arranged in the valve body (1) and the valve cover (2) and connected with the actuating mechanism (4); an inlet channel (11) and an outlet channel (12) are arranged on the valve body (1); the valve is characterized by further comprising a ball core (6) which is arranged on the valve rod (5) and is integrally formed with the valve rod (5), and a valve seat (7) which is arranged on the inlet channel (11) and the outlet channel (12) and is matched with the ball core (6) and can be detached.
2. A hard seal modulating globe shutoff valve as defined in claim 1 wherein: still be equipped with locating hole (13) with valve rod (5) adaptation on valve body (1), valve rod (5) tip is in locating hole (13) and installs axle sleeve (14) between valve rod (5) tip and locating hole (13), also installs axle sleeve (14) between valve rod (5) and valve gap (2), still installs axle sleeve retainer plate (15) of installing axle sleeve (14) spacing between valve rod (5) and valve gap (2) on valve gap (2).
3. A hard seal modulating globe shutoff valve as defined in claim 2 wherein: still install packing (8) between valve rod (5) and valve gap (2), still install gland (81) on valve gap (2), packing (8) are compressed tightly through gland (81) and are installed between valve rod (5) and valve gap (2).
4. A hard seal modulating globe shutoff valve as recited in claim 1, wherein: install gland nut (16) and adjusting nut (17) through the screw on entrance way (11) and exit channel (12), still install dish spring (71), clamping ring (72) and sealing ring (73) between gland nut (16), disk seat (7) and valve body (1), disk seat (7) compress tightly through gland nut (16) and install in valve body (1), and disk seat (7) one end is laminated with ball core (6).
5. A hard seal modulating globe shutoff valve as defined in claim 1 wherein: and a V-shaped runner window (61) is arranged on the ball core (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223104629.XU CN218718966U (en) | 2022-11-23 | 2022-11-23 | Hard seal regulation type cut-off ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223104629.XU CN218718966U (en) | 2022-11-23 | 2022-11-23 | Hard seal regulation type cut-off ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218718966U true CN218718966U (en) | 2023-03-24 |
Family
ID=85623050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223104629.XU Active CN218718966U (en) | 2022-11-23 | 2022-11-23 | Hard seal regulation type cut-off ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218718966U (en) |
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2022
- 2022-11-23 CN CN202223104629.XU patent/CN218718966U/en active Active
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