CN113915371A

CN113915371A - Vacuum ball valve

Info

Publication number: CN113915371A
Application number: CN202111275990.6A
Authority: CN
Inventors: 黄文博; 高家辉; 翁鹏斌
Original assignee: Kunshan Kinglai Hygienic Materials Co Ltd
Current assignee: Kunshan Kinglai Hygienic Materials Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-01-11

Abstract

The invention belongs to the technical field of vacuum production, and discloses a vacuum ball valve which comprises a valve body, a valve rod and a ball body, wherein a mounting hole is formed in the valve body, a first annular groove is formed in the mounting hole along the circumferential direction, a first sealing gasket is arranged in the first annular groove, the valve rod penetrates through the mounting hole, a second annular groove is formed in the valve rod along the circumferential direction, the second annular groove and the first annular groove are arranged in a staggered mode, a first sealing ring is arranged in the second annular groove, the ball body is arranged inside the valve body, and one end of the valve rod is connected with the ball body. This vacuum ball valve can avoid the sealed between valve rod and the valve body to suffer destruction, guarantees vacuum ball valve's leakproofness, avoids causing the wasting of resources, has improved the life of product moreover.

Description

Vacuum ball valve

Technical Field

The invention relates to the technical field of vacuum production, in particular to a vacuum ball valve.

Background

The vacuum ball valve is widely used in the manufacturing industries of petroleum, chemical industry, mines, buildings and instruments, and has good performance of being not easy to leak and accurately controlling flow.

At present, current vacuum ball valve adopts O type circle to move sealedly to the sealing of valve rod, O type circle sets up in the mounting hole and presss from both sides and establish between two gaskets, when operating the valve rod, two gasket extrusions lead to O type circle to receive radial oppression, O type circle still receives the axial oppression that comes from nut and gasket combined action simultaneously, cause O type circle to extrude to take place the friction and damage between part and the gasket during the valve rod motion, lead to the leakproofness to suffer destruction, and then can lead to the vacuum ball valve to leak, vacuum ball valve's life is shorter, and cause the waste of resource.

Therefore, a vacuum ball valve is needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a vacuum ball valve which can prevent the seal between a valve rod and a valve body from being damaged, ensure the sealing performance of the vacuum ball valve, avoid resource waste and prolong the service life of a product.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a vacuum ball valve, includes valve body, valve rod and spheroid, the mounting hole has been seted up on the valve body, first annular has been seted up along circumference in the mounting hole, be provided with first sealed the pad in the first annular, the valve rod is worn to establish in the mounting hole, the second annular has been seted up along circumference on the valve rod, the second annular with first annular dislocation set, be provided with first sealing washer in the second annular, the spheroid sets up the inside of valve body, the one end of valve rod with the spheroid is connected.

Preferably, the number of the first sealing gaskets is at least two, a second sealing ring is further arranged in the first annular groove, and the second sealing ring is clamped between the two adjacent first sealing gaskets.

Preferably, the mounting hole deviates from a third annular groove has been seted up to spheroidal one end, the third annular groove with first annular groove communicates with each other, be provided with the clamping ring in the third annular groove, the clamping ring with first sealed pad butt.

Preferably, a threaded section is arranged on one side, close to the compression ring, of the valve rod, the threaded section is in threaded connection with a nut, and one end of the nut is abutted to the compression ring;

or, be provided with the support on the valve body, the valve rod wears to establish in the support, the one end of support with the clamping ring butt.

Preferably, the mounting hole is close to spheroidal one end has been seted up the fourth annular, the valve rod is close to spheroidal one side is provided with spacing platform, spacing platform sets up in the fourth annular, spacing platform edge the axial of valve rod with fourth annular butt.

Preferably, a second sealing gasket is arranged in the fourth ring groove, and the fourth ring groove is abutted to the limiting table through the second sealing gasket.

Preferably, the valve body further comprises a first side cover, the first side cover is connected with one side end face of the valve body, a first channel is formed in the first side cover, the first channel is communicated with the inside of the valve body, a fifth annular groove is formed in one side end face of the valve body, a third sealing ring is arranged in the fifth annular groove, and the third sealing ring is clamped between the first side cover and one side end face of the valve body.

Preferably, one end, close to the first side cover, of the valve body is provided with a first ball pad, one end of the first ball pad extends into the fifth annular groove, and the other end of the first ball pad is provided with a first spherical surface matched with the ball body.

Preferably, the valve body further comprises a second side cover, the second side cover is connected with the end face of the other side of the valve body, a second channel is formed in the second side cover, the second channel is communicated with the inside of the valve body, a sixth annular groove is formed in the end face of the other side of the valve body, a fourth sealing ring is arranged in the sixth annular groove, and the fourth sealing ring is clamped between the second side cover and the end face of the other side of the valve body.

Preferably, a second ball pad is arranged at one end, close to the second side cover, in the valve body, one end of the second ball pad extends into the sixth annular groove, and a second spherical surface matched with the sphere is arranged at the other end of the second ball pad.

The invention has the beneficial effects that:

according to the vacuum ball valve provided by the invention, the valve body is provided with the mounting hole, the valve rod penetrates through the mounting hole, the valve rod is provided with the second annular groove along the circumferential direction, the first annular groove is formed in the circumferential direction of the mounting hole, and the first annular groove and the second annular groove are arranged in a staggered manner, so that the first sealing gasket in the first annular groove and the first sealing gasket in the second annular groove are not extruded, the first sealing gasket is only radially pressed when the valve rod works, but not axially pressed by the first sealing gasket, and the risk of damaging the first sealing gasket is greatly reduced. This vacuum ball valve can avoid the sealed between valve rod and the valve body to suffer destruction, guarantees vacuum ball valve's leakproofness, avoids causing the wasting of resources, has improved the life of product moreover.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a first schematic structural view of a vacuum ball valve provided by the present invention;

FIG. 2 is a schematic structural diagram II of the vacuum ball valve provided by the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a first schematic view of the valve stem of the present invention;

FIG. 5 is a second schematic structural view of the valve stem of the present invention;

FIG. 6 is a third schematic structural view of a vacuum ball valve provided in the present invention;

fig. 7 is a fourth schematic structural diagram of the vacuum ball valve provided by the invention.

In the figure:

100. a valve body; 101. mounting holes; 1011. a first ring groove; 1012. a first gasket; 1013. a second seal ring; 1014. a third ring groove; 1015. pressing a ring; 1016. a fourth ring groove; 1017. a second gasket; 102. a fifth ring groove; 103. a third seal ring; 104. a first ball pad; 105. a sixth ring groove; 106. a fourth seal ring; 107. a second ball pad; 200. a valve stem; 201. a second ring groove; 202. a first seal ring; 203. a threaded segment; 204. a nut; 205. a support; 206. a limiting table; 207. a limiting block; 300. a sphere; 400. a first side cover; 401. a first channel; 500. a second side cover; 501. a second channel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1 to 5, the present embodiment provides a vacuum ball valve, including a valve body 100, a valve rod 200 and a ball 300, wherein, a mounting hole 101 is opened on the valve body 100, the valve rod 200 is disposed in the mounting hole 101 in a penetrating manner, a first annular groove 1011 is opened in the mounting hole 101 along the circumferential direction, a second annular groove 201 is opened in the valve rod 200 along the circumferential direction, the second annular groove 201 and the first annular groove 1011 are disposed in a staggered manner, a first sealing gasket 1012 is disposed in the first annular groove 1011, a first sealing ring 202 is disposed in the second annular groove 201, the ball 300 is disposed in the valve body 100, and one end of the valve rod 200 is connected with the ball 300.

In the vacuum ball valve provided by this embodiment, the valve body 100 is provided with the mounting hole 101, the valve rod 200 is inserted into the mounting hole 101, and by forming the second annular groove 201 on the valve rod 200 along the circumferential direction, a first ring groove 1011 is arranged on the circumferential direction of the mounting hole 101, the first ring groove 1011 and the second ring groove 201 are arranged in a staggered manner, so that the first sealing gasket 1012 in the first annular groove 1011 and the first sealing ring 202 in the second annular groove 201 are not squeezed, the first sealing ring 202 is only radially compressed when the valve rod 200 works, without being axially compressed by the first seal 1012, the risk of damage to the first seal ring 202 is greatly reduced, and the first packing 1012 can support and seal the valve stem 200, ensure the stability of the valve stem 200, when the first sealing ring 202 is worn to weaken the sealing effect, the first sealing gasket 1012 can ensure the sealing between the valve body 100 and the valve rod 200, and leakage is avoided. The vacuum ball valve can avoid the damage to the seal between the valve rod 200 and the valve body 100, ensure the tightness of the vacuum ball valve, avoid resource waste and prolong the service life of the product.

In this embodiment, a third ring groove 1014 is formed in an end of the mounting hole 101 away from the sphere 300, the third ring groove 1014 is communicated with the first ring groove 1011, a pressing ring 1015 is arranged in the third ring groove 1014, and the pressing ring 1015 abuts against the first sealing gasket 1012. Through setting up third annular 1014, third annular 1014 can carry out spacing support to clamping ring 1015, and simultaneously, clamping ring 1015 and first annular 1011 can press from both sides tight the first sealed pad 1012 in the first annular 1011, avoid first sealed pad 1012 to take place to squint, have guaranteed the life of first sealed pad 1012. As a preferable technical solution, the depth of the third ring groove 1014 is greater than or equal to the first ring groove 1011, so as to ensure the limiting effect of the pressing ring 1015 on the first sealing gasket 1012.

In a specific embodiment, a threaded section 203 is arranged on one side of the valve rod 200 close to the pressing ring 1015, the threaded section 203 is in threaded connection with a nut 204, and one end of the nut 204 abuts against the pressing ring 1015. Through setting up screw thread section 203 and nut 204, when installing, through screwing nut 204 on screw thread section 203, nut 204 and clamping ring 1015 butt and carry on spacingly to clamping ring 1015, avoid clamping ring 1015 to take place the skew, can lock between valve rod 200 and the valve body 100 through nut 204 simultaneously, avoid valve rod 200 to take place relative movement with valve body 100 in the axial, guaranteed valve rod 200's stability.

Optionally, a limiting block 207 is disposed at an end of the threaded section 203 away from the sphere 300 in this embodiment, and a limiting hole of the handle is clamped into the limiting block 207, so that the handle is rotated to drive the valve rod 200 to rotate around the axis. Preferably, the limiting block 207 is provided with a thread, the thread is communicated with the threaded section 203, and the diameter of the thread on the limiting block 207 is smaller than or equal to that of the thread on the threaded section 203. The stop block 207 may be, but is not limited to, rectangular or oval.

In another specific embodiment, a bracket 205 is disposed on the valve body 100, the valve rod 200 is inserted into the bracket 205, and one end of the bracket 205 abuts against the pressing ring 1015. Through the structure, when the valve is installed, the support 205 is abutted to the pressing ring 1015 and limits the pressing ring 1015 by installing the support 205 on the valve body 100, so that the pressing ring 1015 is prevented from offsetting, the support 205 can lock the valve rod 200 and the valve body 100, the valve rod 200 is prevented from moving relative to the valve body 100 in the axial direction, and the stability of the valve rod 200 is ensured.

In this embodiment, a fourth groove 1016 is formed at one end of the mounting hole 101 close to the sphere 300, a limit table 206 is arranged at one side of the valve rod 200 close to the sphere 300, the limit table 206 is arranged in the fourth groove 1016, and the limit table 206 abuts against the fourth groove 1016 along the axis of the valve rod 200. Through setting up fourth ring groove 1016 and spacing 206, can be further spacing at the axial to valve rod 200, avoid valve rod 200 to take place relative movement with valve body 100 in the axial, guaranteed valve rod 200's stability, avoid moreover that spheroid 300 moves along with valve rod 200 and collide with taking place between the valve body 100, reduce the risk that spheroid 300 damaged.

In a preferred embodiment, a second gasket 1017 is disposed within the fourth groove 1016, and the fourth groove 1016 abuts the stop 206 via the second gasket 1017. Through setting up the second sealed 1017 that fills up for elastic butt between fourth ring groove 1016 and the spacing platform 206, avoid between fourth ring groove 1016 and the spacing platform 206 rigid butt and the collision damage, the sealed 1017 that fills up of second moreover can seal between fourth ring groove 1016 and the spacing platform 206, further strengthen the sealed effect between valve rod 200 and the valve body 100, thereby form multistage sealed, improved vacuum ball valve's life.

The vacuum ball valve provided by the embodiment further comprises a first side cover 400, the first side cover 400 is connected with one side end face of the valve body 100, a first channel 401 is formed in the first side cover 400, the first channel 401 is communicated with the inside of the valve body 100, a fifth annular groove 102 is formed in one side end face of the valve body 100, a third sealing ring 103 is arranged in the fifth annular groove 102, and the third sealing ring 103 is clamped between the first side cover 400 and one side end face of the valve body 100. Through setting up the first side cover 400 of seting up first passageway 401, be convenient for vacuum ball valve and pipe connection, first side cover 400 can adjust according to the different diameters of pipeline moreover, has improved the compatibility of high-pressure ball valve, through setting up fifth annular 102, can support spacingly to third sealing washer 103, has guaranteed the stability of third sealing washer 103, third sealing washer 103 presss from both sides and establishes between a side end face of first side cover 400 and valve body 100, has guaranteed the leakproofness between first side cover 400 and valve body 100. Specifically, the first side cover 400 and one side end surface of the valve body 100 may be coupled by bolts.

Optionally, a first ball pad 104 is disposed at an end of the interior of the valve body 100 close to the first side cover 400, one end of the first ball pad 104 extends into the fifth annular groove 102, and the other end of the first ball pad 104 is provided with a spherical surface adapted to the ball 300. By arranging the first ball pad 104 and the spherical surface adapted to the spherical body 300, the spherical body 300 can be supported and the spherical body 300 can be sealed, so that the vacuum ball valve is prevented from leaking; one end of the first ball pad 104 extends into the fifth annular groove 102, so that the first ball pad 104 can be limited, and the stability of the first ball pad 104 is ensured.

The vacuum ball valve provided in this embodiment further includes a second side cover 500, the second side cover 500 is connected to the other end surface of the valve body 100, the second side cover 500 is provided with a second channel 501, the second channel 501 is communicated with the inside of the valve body 100, the other end surface of the valve body 100 is provided with a sixth ring groove 105, a fourth sealing ring 106 is disposed in the sixth ring groove 105, and the fourth sealing ring 106 is clamped between the second side cover 500 and the other end surface of the valve body 100. Through setting up the second side cap 500 of seting up second passageway 501, be convenient for vacuum ball valve and pipe connection, and second side cap 500 can be adjusted according to the different diameters of pipeline, has improved the compatibility of high-pressure ball valve, through setting up sixth annular 105, can support spacingly to fourth sealing washer 106, has guaranteed the stability of fourth sealing washer 106, fourth sealing washer 106 presss from both sides and establishes between second side cap 500 and the other side terminal surface of valve body 100, has guaranteed the leakproofness between second side cap 500 and the valve body 100. Specifically, the second side cover 500 and the other end surface of the valve body 100 may be connected by bolts.

Optionally, a second ball pad 107 is disposed at an end of the interior of the valve body 100 close to the second side cover 500, one end of the second ball pad 107 extends into the sixth ring groove 105, and the other end of the second ball pad 107 is disposed with a spherical surface adapted to the ball 300. By arranging the second ball pad 107 and the spherical surface adapted to the spherical body 300, the spherical body 300 can be supported and the spherical body 300 can be sealed, so that the vacuum ball valve is prevented from leaking; through stretching into sixth annular 105 with the one end of second ball pad 107, can carry on spacingly to second ball pad 107, guarantee the stability of second ball pad 107.

Example two

As shown in fig. 6, the present embodiment provides a vacuum ball valve, which is different from the first embodiment in that a third annular groove 1014 and a pressing ring 1015 are not required, and the present embodiment directly abuts against a first sealing gasket 1012 through a nut 204 or a bracket 205, thereby achieving the purpose of simplifying the structure. Other structures are the same as those of the first embodiment, and are not described herein.

EXAMPLE III

As shown in fig. 7, the present embodiment provides a vacuum ball valve, which is different from the first embodiment in that the number of the first sealing gaskets 1012 is at least two, and a second sealing ring 1013 is further disposed in the first annular groove 1011, and the second sealing ring 1013 is interposed between two adjacent first sealing gaskets 1012. Through the structure, the sealing effect of the first sealing gasket 1012 is enhanced, and the first sealing gasket 1012 can support and limit the second sealing ring 1013, so that the stability of the second sealing ring 1013 is ensured. Other structures are the same as those of the first embodiment, and are not described herein.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a vacuum ball valve, its characterized in that, includes valve body (100), valve rod (200) and spheroid (300), mounting hole (101) have been seted up on valve body (100), first annular (1011) have been seted up along circumference in mounting hole (101), be provided with first sealed pad (1012) in first annular (1011), valve rod (200) are worn to establish in mounting hole (101), second annular (201) have been seted up along circumference on valve rod (200), second annular (201) with first annular (1011) dislocation set, be provided with first sealing washer (202) in second annular (201), spheroid (300) set up the inside of valve body (100), the one end of valve rod (200) with spheroid (300) are connected.

2. The vacuum ball valve according to claim 1, wherein the number of the first sealing gaskets (1012) is at least two, and a second sealing ring (1013) is further disposed in the first annular groove (1011), and the second sealing ring (1013) is sandwiched between two adjacent first sealing gaskets (1012).

3. The vacuum ball valve according to claim 1, wherein a third ring groove (1014) is formed in an end of the mounting hole (101) facing away from the ball body (300), the third ring groove (1014) is communicated with the first ring groove (1011), a pressing ring (1015) is arranged in the third ring groove (1014), and the pressing ring (1015) abuts against the first sealing gasket (1012).

4. The vacuum ball valve according to claim 3, wherein a threaded section (203) is arranged on one side of the valve rod (200) close to the pressing ring (1015), the threaded section (203) is in threaded connection with a nut (204), and one end of the nut (204) abuts against the pressing ring (1015);

or a support (205) is arranged on the valve body (100), the valve rod (200) penetrates through the support (205), and one end of the support (205) is abutted to the pressing ring (1015).

5. The vacuum ball valve according to claim 3, wherein a fourth ring groove (1016) is formed at one end of the mounting hole (101) close to the ball body (300), a limit stop (206) is arranged at one side of the valve rod (200) close to the ball body (300), the limit stop (206) is arranged in the fourth ring groove (1016), and the limit stop (206) abuts against the fourth ring groove (1016) along the axial direction of the valve rod (200).

6. The vacuum ball valve according to claim 5, characterized in that a second sealing gasket (1017) is arranged in the fourth ring groove (1016), and the fourth ring groove (1016) is abutted with the limit table (206) through the second sealing gasket (1017).

7. The vacuum ball valve according to claim 1, further comprising a first side cover (400), wherein the first side cover (400) is connected to a side end surface of the valve body (100), the first side cover (400) defines a first channel (401), the first channel (401) communicates with the interior of the valve body (100), a fifth ring groove (102) is defined in a side end surface of the valve body (100), a third sealing ring (103) is disposed in the fifth ring groove (102), and the third sealing ring (103) is sandwiched between the first side cover (400) and a side end surface of the valve body (100).

8. The vacuum ball valve according to claim 7, wherein a first ball pad (104) is disposed at one end of the interior of the valve body (100) close to the first side cover (400), one end of the first ball pad (104) extends into the fifth ring groove (102), and the other end is disposed with a first spherical surface adapted to the spherical body (300).

9. The vacuum ball valve according to any one of claims 1 to 8, further comprising a second side cover (500), wherein the second side cover (500) is connected to the other end surface of the valve body (100), the second side cover (500) defines a second channel (501), the second channel (501) communicates with the interior of the valve body (100), the other end surface of the valve body (100) defines a sixth ring groove (105), a fourth sealing ring (106) is disposed in the sixth ring groove (105), and the fourth sealing ring (106) is sandwiched between the second side cover (500) and the other end surface of the valve body (100).

10. The vacuum ball valve according to claim 9, wherein a second ball pad (107) is disposed at an end of the interior of the valve body (100) close to the second side cover (500), one end of the second ball pad (107) extends into the sixth ring groove (105), and the other end is disposed with a second spherical surface adapted to the spherical body (300).