CN212616459U

CN212616459U - Ball valve capable of being detached and maintained conveniently on line

Info

Publication number: CN212616459U
Application number: CN202021230527.0U
Authority: CN
Inventors: 马尚才
Original assignee: Zhejiang Liang Jing Valve Co ltd
Current assignee: Zhejiang Liang Jing Valve Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-26
Anticipated expiration: 2030-06-29

Abstract

The utility model provides a can conveniently dismantle ball valve of maintenance on line, including valve body, disk seat and valve gap, form the adjustment chamber between disk seat and the valve body, the space in adjustment chamber changes along with the disk seat at the inside horizontal displacement of valve body, the mobilizable setting of disk seat is in the valve body, disk seat one side and valve body contact, disk seat opposite side and valve ball contact, set up the adjusting collar on the disk seat, the adjusting collar is connected with the disk seat, set up the mounting between adjusting collar and the valve body, the adjusting collar passes through the mounting and is connected with the valve body, adjusting collar one side sets up the elastic component, elastic component both ends correspondence connects adjusting collar and valve body, set up the guide between disk seat and the valve body, disk seat and valve body are connected to the guide, the utility model discloses simple structure, sealing performance is good, and make things convenient for the dismouting.

Description

Ball valve capable of being detached and maintained conveniently on line

Technical Field

The utility model belongs to the technical field of the facial make-up ball valve and specifically relates to indicate a ball valve that can conveniently dismantle the maintenance on line.

Background

The existing valve seat can not rotate once being damaged by threads or being blocked by foreign matters, so that a valve ball can not be taken out, the ball valve can be directly scrapped and cannot be maintained, and the cost is increased.

Disclosure of Invention

In view of this, the utility model provides a can conveniently dismantle ball valve of maintenance on line.

In order to achieve the above object, the utility model provides a following technical scheme:

a ball valve capable of being detached and maintained conveniently on line comprises a valve body, a valve seat and a valve cover, wherein the valve cover is arranged above the valve body, a valve rod penetrates through the valve cover, a valve cavity is arranged in the valve body, an inlet and an outlet are formed in two sides of the valve cavity, a valve ball is arranged in the valve cavity and connected with the valve rod, a valve seat is arranged in the valve body, an adjusting cavity is formed between the valve seat and the valve body, the space of the adjusting cavity changes along with the horizontal displacement of the valve seat in the valve body, the valve seat is movably arranged in the valve body, one side of the valve seat is in contact with the valve body, the other side of the valve seat is in contact with the valve ball, an adjusting ring is arranged on the valve seat and connected with the valve seat, a fixing part is arranged between the adjusting ring and the valve body, the adjusting ring is connected with the valve body through the fixing part, and a guide piece is arranged between the valve seat and the valve body and is connected with the valve seat and the valve body.

The preferred, the disk seat is the echelonment setting, just the disk seat forms first step face, second step face and third step face, first step face sets up with the second step face is perpendicular, just second step face and the perpendicular setting of third step face, adjusting collar and elastic component set up on first step face, the second step face sinks to form the recess, set up O type circle in the recess, the guiding piece sets up on the third step face.

Preferably, the adjusting ring is provided with an internal thread, one surface of the valve seat, which is in contact with the adjusting ring, is provided with an external thread, the internal thread of the adjusting ring and the external thread of the first step surface form a thread pair, and the valve seat moves in the valve body in the horizontal direction through the thread pair.

Preferably, the adjusting ring is provided with a screw hole and a wrench hole, the screw hole is arranged on the top end face of the adjusting ring, the wrench hole is arranged on one side of the adjusting ring close to the valve ball, the valve body is provided with a fixing hole corresponding to the screw hole on the adjusting ring, the fixing hole and the screw hole are fixedly connected through a fixing piece, and the fixing piece is a screw.

Preferably, the third step face of the valve seat and the connecting face of the second step face form a positioning groove, the valve body is provided with a guide groove corresponding to the positioning groove, two ends of the guide piece extend into the positioning groove and the guide groove, the guide piece is correspondingly connected with the positioning groove and the guide groove, and the guide piece is a pin shaft.

Preferably, the elastic member is a disc spring, one end of the disc spring is connected with the adjusting ring, and the other end of the disc spring is connected with the valve body.

Preferably, one side of the valve seat, which is close to the valve body, is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the contact surface of the sealing ring and the valve ball is an inclined surface.

Preferably, the valve ball is further provided with lifting screw holes, the lifting screw holes are arranged at the top end of the valve ball at equal intervals, and the number of the lifting screw holes is at least two.

Preferably, a bump is formed below the valve cover, a groove is formed on the valve body corresponding to the bump, and the bump extends into the groove and is connected with the groove.

The beneficial effects of the utility model reside in that: the disc spring is adopted, so that larger elastic force can be generated when the deformation amount is smaller, and reliable sealing force is realized; the disc spring has small horizontal deformation, so that the valve seat moves backwards slightly to be separated from the ball body, and the maintenance is convenient and efficient; the horizontal displacement of the valve seat is realized through the thread pair by adopting the adjusting ring, so that the valve seat is convenient to mount and dismount; the radial rotation of the valve seat is limited by a pin shaft, and only horizontal movement is performed; the horizontal movement of the adjusting ring is limited by a screw, and only the adjusting ring rotates in the radial direction.

Drawings

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

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the maintenance and disassembly state of the present invention;

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

fig. 4 is an enlarged view of fig. 2 at B.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings.

The utility model provides a following technical scheme:

as shown in the attached figures 1-4, the utility model discloses a ball valve capable of being detached and maintained conveniently on line, which comprises a valve body 1, a valve seat 5 and a valve cover 2, wherein the valve cover 2 is arranged above the valve body 1, a valve rod 3 is arranged in the valve cover 2 in a penetrating way, a valve cavity is arranged in the valve body 1, an inlet 22 and an outlet 23 are arranged at two sides of the valve cavity, a valve ball 6 is arranged in the valve cavity, the valve ball 6 is connected with the valve rod 3, a valve seat 5 is arranged in the valve body 1, an adjusting cavity 4 is formed between the valve seat 5 and the valve body 1, the space of the adjusting cavity 4 changes along with the horizontal displacement of the valve seat 5 in the valve body 1, the valve seat 5 is movably arranged in the valve body 1, one side of the valve seat 5 is contacted with the valve body 1, the other side of the valve seat 5 is contacted with the valve ball 6, an adjusting ring 18 is arranged on the valve seat 5, the adjusting ring 18 is connected with the valve body 1 through a fixing part 21, an elastic part 15 is arranged on one side of the adjusting ring 18, two ends of the elastic part 15 are correspondingly connected with the adjusting ring 18 and the valve body 1, a guide part 8 is arranged between the valve seat 5 and the valve body 1, and the guide part 8 is connected with the valve seat 5 and the valve body 1.

Specifically, valve seat 5 is the echelonment setting, just valve seat 5 forms first step face 24, second step face 25 and third step face 26, first step face 24 sets up with second step face 25 is perpendicular, just second step face 25 sets up with third step face 26 is perpendicular, adjusting ring 18 and elastic component 15 set up on first step face 24, second step face 25 sinks to form recess 9, set up O type circle 12 in the recess 9, guide 8 sets up on third step face 26, through setting up the valve seat to the echelonment, makes the inseparable cooperation between valve seat and the valve body, through set up O type circle 12 on the second step face, has improved the leakproofness between valve seat 5 and the valve body 1, and the echelonment setting can disperse the power of original planar valve seat 2 and the contact of valve body 1 through the angle of each step face away, reduces pressure and concentrates on same action point, thereby improving the durability of the valve seat 5 and preventing deformation during long-term disassembly and assembly.

Specifically, the adjusting ring 18 sets up the internal thread, the one side of the first step face 24 of disk seat 5 and the contact of adjusting ring 18 sets up the external screw thread, the internal thread of adjusting ring 18 and the external screw thread of first step face 24 form the screw thread pair, disk seat 5 passes through the vice horizontal direction removal in valve body 1 of screw thread, adopts the adjusting ring to pass through the vice horizontal displacement who realizes the disk seat of screw thread, makes things convenient for the installation and the dismantlement of disk seat.

Specifically, a screw hole 17 and a wrench hole 19 are arranged on the adjusting ring 18, the screw hole 17 is arranged on the top end face of the adjusting ring 18, the wrench hole 19 is arranged on one side, close to the valve ball 6, of the adjusting ring 18, the valve body 1 is provided with a fixing hole 16 corresponding to the screw hole 17 in the adjusting ring 18, the fixing hole 16 and the screw hole 17 are fixedly connected through a fixing piece 21, the fixing piece 21 is a screw, and the setting of the screw limits the adjusting ring to move horizontally, so that the valve seat 5 returns into the valve body 1 and is far away from the valve ball 6 until the valve ball 6 is completely separated and a safety gap is kept.

Specifically, the third step face 26 of valve seat 5 forms constant head tank 10 with the connection face of second step face 25, valve body 1 corresponds constant head tank 10 position and sets up guide way 11, constant head tank 10 and guide way 11 are stretched into at the 8 both ends of guide, just guide 8 corresponds and connects constant head tank 10 and guide way 11, guide 8 is the round pin axle, the degree of depth of guide way 11 is the same with the degree of depth of constant head tank 10, and the length of guide 8 is the degree of depth sum of the degree of depth of guide way 11 and constant head tank 10, and such structure setting enables valve seat 5 and valve body 1 in close contact with, and guide 8 can be connected inseparabler with the rated bit groove 10 of guide way 11, prevents to appear droing, through setting up guide way 11, constant head tank 10 and guide 8, has injectd valve seat 5 and has made radial rotation, only does the horizontal migration.

Specifically, the elastic member 15 is a disc spring, one end of the disc spring is connected with the adjusting ring 18, the other end of the disc spring is connected with the valve body 1, and the disc spring is adopted, so that large elastic force can be generated in the case of small deformation, and reliable sealing force can be realized; and because the disc spring has small horizontal deformation, the valve seat 5 makes small backward displacement to be separated from the ball body, and the maintenance is convenient and efficient.

As shown in fig. 2, in the maintenance state, the valve seat 5 rotates the adjusting ring 18 by using a wrench corresponding to the wrench hole 19, due to the arrangement of the fixing member 21, the adjusting ring 18 is limited to move horizontally, so that the valve seat 5 moves close to the valve ball 6, the valve seat 5 retracts into the valve body 1 and is far away from the valve ball 6, the disc spring 15 starts to compress, the space of the adjusting cavity 4 becomes smaller, the positioning groove 10 where the guide member 8 is located gradually gets close to the guide groove 11, and two ends of the guide member 8 are attached to the inner walls of the positioning groove 10 and the guide groove 11.

Specifically, valve seat 5 sets up the seal groove (not shown) near valve ball 6 one side, set up sealing washer 20 in the seal groove, sealing washer 20 and valve ball 6 contact surface are the inclined plane, through set up sealing washer 20 between valve ball 6 and valve seat 5, have increased the leakproofness between valve seat 5 and the valve ball 6, prevent revealing between valve ball 6 and the valve seat 5, sealing washer 20 has certain angle with one side of valve ball contact, inclined plane sub-unit connection is the plane, and sealing washer 20's material is elastic rubber, prevents that valve ball 6 and valve seat 5 from causing wearing and tearing under the extruded condition of contact, and the angle of sealing washer 20 and plane setting can effectually slow down valve ball 6 and the impact force of attack extrusion production.

Specifically, still set up on the valve ball 6 and lift by crane screw 17, lift by crane screw 17 equidistant setting at valve ball 6 top, it sets up two at least to lift by crane screw 17, set up the bolt of lifting by crane in the screw 17, it is connected with outside equipment of lifting by crane to lift by crane the bolt in the screw and take out the valve ball.

Specifically, a bump 14 is formed below the valve cap 2, a connecting groove 13 is formed on the valve body 1 corresponding to the bump 14, the bump 14 extends into the connecting groove 13 and is connected with the connecting groove 13, a sealing gasket (not shown) can be arranged between the bump and the connecting groove, the sealing gasket is made of rubber, and the sealing performance is improved through the sealing gasket, and meanwhile, the problems of leakage and the like caused by abrasion between the bump 14 and the connecting groove 13 in the long-term disassembly and assembly process are solved.

The utility model discloses a dismouting method: during installation, the end face of the adjusting ring 18 is screwed to a position which is flush with the end face of the valve seat 5, then the valve seat 5, the adjusting ring 18, the disc spring 15 and the O-shaped ring 12 are installed in the valve body 1 to rotate slightly, so that the guide piece 8 of the valve seat 5 is inserted into the guide groove 11 of the valve body 1 to limit the radial rotation of the valve seat 5 and only do horizontal movement, the valve ball 6 is installed in the valve body 1, the adjusting ring 18 is screwed to enable the valve seat 5 to move close to the valve ball 6 until the disc spring 15 is compressed to enable the elastic force generated by the disc spring 15 to reach the set pre-tightening force. When in on-line maintenance, the valve cover 2 is firstly detached, the adjusting ring 18 is rotated by a wrench corresponding to the wrench hole 19, the horizontal movement of the adjusting ring 18 is limited due to the arrangement of the fixing piece 21, so that the valve seat 5 returns into the valve body 1 and is far away from the valve ball 6 until the valve ball 6 is completely separated and a safety clearance is kept, then the valve ball 6 is taken out by a lifting bolt, the fixing piece 21 is screwed out, and the valve seat 5 is taken out for replacement or maintenance.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a can conveniently dismantle ball valve of maintenance on line, includes valve body, disk seat and valve gap, the valve gap sets up in the valve body top, run through in the valve gap and set up the valve rod, set up the valve pocket in the valve body, the valve pocket both sides set up import and export, set up the valve ball in the valve pocket, the valve ball is connected with the valve rod, set up disk seat, its characterized in that in the valve body: form the adjustment chamber between disk seat and the valve body, the space size in adjustment chamber changes along with the disk seat at the inside horizontal displacement of valve body, the mobilizable setting of disk seat is in the valve body, disk seat one side and valve body contact, the disk seat opposite side and the contact of valve ball, set up the adjusting collar on the disk seat, the adjusting collar is connected with the disk seat, set up the mounting between adjusting collar and the valve body, the adjusting collar passes through the mounting and is connected with the valve body, adjusting collar one side sets up the elastic component, adjusting collar and valve body are connected in the correspondence of elastic component both ends, set up the guide between disk seat and the valve body, disk seat and valve body are connected to the guide.

2. The ball valve capable of being disassembled and maintained conveniently on line according to claim 1, wherein: the valve body is provided with a fixing hole corresponding to the screw hole on the adjusting ring, the fixing hole and the screw hole are fixedly connected through a fixing piece, and the fixing piece is a screw.

3. The ball valve capable of being disassembled and maintained conveniently on line according to claim 1, wherein: the valve seat is the echelonment setting, just the valve seat forms first step face, second step face and third step face, first step face sets up with the second step face is perpendicular, just second step face and the perpendicular setting of third step face, adjusting collar and elastic component set up on first step face, the second step face sinks to form the recess, set up O type circle in the recess, the guide setting is on the third step face.

4. The ball valve capable of being disassembled and maintained conveniently on line according to claim 3, wherein: the adjusting ring is provided with an internal thread, the first step surface of the valve seat is provided with an external thread at one side contacted with the adjusting ring, the internal thread of the adjusting ring and the external thread of the first step surface form a thread pair, and the valve seat moves in the horizontal direction in the valve body through the thread pair.

5. The ball valve capable of being disassembled and maintained conveniently on line according to claim 3, wherein: the valve seat is characterized in that a positioning groove is formed in the connecting surface of the third step surface of the valve seat and the second step surface, a guide groove is arranged at the position of the valve body corresponding to the positioning groove, the two ends of the guide piece extend into the positioning groove and the guide groove, the guide piece is correspondingly connected with the positioning groove and the guide groove, and the guide piece is a pin shaft.

6. The ball valve capable of being disassembled and maintained conveniently on line according to claim 1, wherein: the elastic piece is a disc spring, one end of the disc spring is connected with the adjusting ring, and the other end of the disc spring is connected with the valve body.

7. The ball valve capable of being disassembled and maintained conveniently on line according to claim 1, wherein: one side of the valve seat, which is close to the valve body, is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the contact surface of the sealing ring and the valve ball is an inclined plane.

8. The ball valve capable of being disassembled and maintained conveniently on line according to claim 1, wherein: the valve ball is further provided with lifting screw holes, the lifting screw holes are arranged at the top end of the valve ball at equal intervals, and the lifting screw holes are at least two.

9. The ball valve capable of being disassembled and maintained conveniently on line according to claim 1, wherein: a convex block is formed downwards below the valve cover, a groove is formed on the valve body corresponding to the convex block, and the convex block extends into the groove and is connected with the groove.