CN212055934U - Ball valve for enhancing sealing performance of valve seat - Google Patents
Ball valve for enhancing sealing performance of valve seat Download PDFInfo
- Publication number
- CN212055934U CN212055934U CN202020412060.5U CN202020412060U CN212055934U CN 212055934 U CN212055934 U CN 212055934U CN 202020412060 U CN202020412060 U CN 202020412060U CN 212055934 U CN212055934 U CN 212055934U
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- Prior art keywords
- valve
- locking
- valve seat
- ball
- rod
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- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 41
- 238000007906 compression Methods 0.000 claims description 41
- 238000009434 installation Methods 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a ball valve for enhancing the sealing performance of a valve seat, which comprises an execution handle, a valve body, a valve seat, a ball body and a valve rod; the valve body is transversely provided with a mounting groove, the valve seat is arranged in the mounting groove, and an elastic part is arranged in the mounting groove; the valve body is provided with locking grooves along the periphery of the mounting groove, and locking members are arranged in the locking grooves; each locking component comprises a locking rod and a return spring, a locking hook is arranged on the inner side of the locking rod, and a plurality of locking clamping grooves matched with the locking hook are formed in the valve seat corresponding to the locking hook; the locking hook is triangular and provided with a first straight edge and a first inclined edge, and the first straight edge is positioned on one side close to the ball body compared with the first inclined edge; each locking clamping groove is triangular and provided with a second straight edge and a second oblique edge, and the second straight edge is located on one side close to the ball body compared with the second oblique edge. The utility model discloses following beneficial effect has: the valve seat can be prevented from being pushed back, so that the sealing performance between the valve seat and the ball body is ensured.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to ball valve of reinforcing disk seat leakproofness.
Background
The ball valve is one of the common valves, and its closing member is a ball body which can be rotated by 90 deg. around the central line of valve body to open and close. The main function of a ball valve in a pipeline is to shut off, regulate the flow of a medium or change the flow direction of the medium.
The existing ball valve usually depends on the tight abutting of the ball body and the valve seat to realize sealing, but because of the existence of production tolerance, and in the long-term use process, the valve seat has the problem of fatigue accumulation and can generate abrasion, so that the ball body and the valve seat generate a gap when being sealed, and the internal leakage of the ball valve is caused.
In order to solve the above problems in the prior art, the valve seat is generally set to be in a floatable state, and a compression spring is arranged on one side of the valve seat away from the ball body, so that when the surface of the valve seat is abraded, the valve seat can be pushed to continuously abut against the ball body based on the elastic acting force of the compression spring, and the purpose of sealing is achieved; however, this also causes a problem that if the impact velocity of the fluid medium is high and the impact force is greater than the elastic force of the compression spring, the valve seat is pushed back, and a gap is again generated between the ball and the valve seat to cause internal leakage of the ball valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ball valve of reinforcing disk seat leakproofness can prevent that the disk seat from taking place to push back to guarantee the leakproofness between disk seat and the spheroid.
The above technical purpose of the present invention can be achieved by the following technical solutions: a ball valve for enhancing the sealing performance of a valve seat comprises an execution handle, a valve body, the valve seat, a ball body and a valve rod, wherein a valve cavity is formed in the valve body in a penetrating mode, the valve rod longitudinally penetrates through the valve cavity, the execution handle is connected to the upper end of the valve rod and can drive the valve rod to rotate circumferentially along the axis of the execution handle, the ball body is arranged at the lower end of the valve rod in a linkage mode, the valve seat is arranged in the valve body and forms sealing fit with the ball body, and a flow channel is formed in the valve body; the valve body is internally and transversely provided with an installation groove, the valve seat is arranged in the installation groove and can transversely slide along the direction of the installation groove, one end of the installation groove, which is far away from the ball body, is provided with an elastic part, and the valve seat has the tendency of sliding towards the ball body based on the elastic acting force provided by the elastic part; the valve body is provided with a plurality of locking grooves along the periphery of the mounting groove, and a locking member for preventing the valve seat from being pushed back is arranged in each locking groove; each locking component comprises a locking rod and a return spring, one end of the locking rod, which is far away from the ball body, is fixedly provided with a hinged shaft hinged with the locking groove, the inner side of the locking rod is provided with a locking hook, and the valve seat is provided with a plurality of locking clamping grooves matched with the locking hook; the reset spring is positioned on the outer side of one end of the locking rod, which faces the sphere, and the locking clamping hook can be embedded into the corresponding locking clamping groove through the reset acting force of the reset spring; the locking clamping hook is triangular and provided with a first straight edge and a first inclined edge, the first straight edge extends towards the valve seat and is vertical to the sliding direction of the valve seat, and the first straight edge is positioned on one side close to the ball body compared with the first inclined edge; each locking clamping groove is triangular and provided with a second straight edge and a second oblique edge, the second straight edge extends towards the locking rod and is perpendicular to the sliding direction of the valve seat, and the second straight edge is located on one side close to the ball body compared with the second oblique edge.
The further setting is that: the valve body is provided with a sealing cover at a position close to the locking groove, the sealing cover is fixed on the valve body through a bolt, the inner side of the sealing cover is provided with an abutting surface, and after the sealing cover is fixed on the valve body, the abutting surface is matched with the locking rod to compress the return spring.
The further setting is that: the elastic part comprises a piston, a first compression spring and a second compression spring, a first compression cavity and a second compression cavity are respectively formed in two side ends of the piston along the sliding direction of the valve seat, and the first compression spring is located in the first compression cavity and compressed by the inner wall of the first compression cavity and the outer wall of the valve seat; the second compression spring is positioned in the second compression cavity and is compressed by the inner wall of the second compression cavity and the inner wall of the mounting groove.
The further setting is that: the periphery of the valve seat is provided with a sealing ring along the circumferential direction.
The beneficial effects of the utility model reside in that:
1. the elastic piece is arranged in the utility model, so that the valve seat has the tendency of moving towards the sphere; after the valve seat is abraded under long-term working conditions, the valve seat can be abutted to the ball body under the pushing of the elastic piece, so that the gap between the valve seat and the ball body is prevented, and the sealing performance is better.
2. In order to prevent the valve seat from being pushed back, the utility model is provided with a locking rod which is matched with a locking clamping groove of the valve seat through a locking clamping hook to prevent the valve seat from being pushed back; the locking hooks are triangular and can be positively embedded into the corresponding locking slots, and the first straight edges of the locking hooks are abutted with the second straight edges of the locking slots, so that the valve seat is prevented from being pushed back; when the valve seat slides towards the ball body, the first bevel edge of the locking clamping hook is in contact with the second bevel edge of the locking clamping groove, and the valve seat slides towards the ball body smoothly by utilizing the bevel guide of the first bevel edge and the second bevel edge.
3. The utility model discloses in through setting up reset spring, guarantee that the locking trip can imbed in to the locking slot that corresponds to guarantee that the first straight flange of locking trip and the second straight flange of locking slot are in the counterbalance state.
4. The utility model discloses in realize the detachable installation through the closing cap, utilize the inboard butt face cooperation locking lever of closing cap to compress reset spring simultaneously, the structure is reliable.
5. The utility model provides an elastic component is including piston, first compression spring and second compression spring, and the buffering that realizes both sides through the first compression spring and the second compression spring of both sides promotes, not only can provide the effort that promotes the disk seat and slide, has avoided disk seat and the produced wearing and tearing of piston direct contact to damage more.
6. The utility model discloses in through setting up the sealing washer, further prevent that fluid medium from permeating to elastic component department.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is an enlarged view of a portion B in fig. 2.
In the figure: 11. an actuating handle; 12. a valve body; 13. a valve stem; 14. a sphere; 15. a valve seat; 16. a flow channel; 21. mounting grooves; 22. a locking groove; 31. a locking lever; 32. a return spring; 33. hinging a shaft; 41. locking the clamping hook; 42. locking the clamping groove; 411. a first straight side; 412. A first beveled edge; 421. a second straight side; 422. a second beveled edge; 51. sealing the cover; 52. an abutting surface; 61. a piston; 611. a first compression chamber; 612. a second compression chamber; 62. a first compression spring; 63. a second compression spring; 7. and (5) sealing rings.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 3, a ball valve for enhancing the sealing performance of a valve seat comprises an actuating handle 11, a valve body 12, a valve seat 15, a ball 14 and a valve rod 13, wherein a valve cavity is formed in the valve body 12 in a penetrating manner, the valve rod 13 is longitudinally arranged in the valve cavity in a penetrating manner, the actuating handle 11 is connected to the upper end of the valve rod 13 and can drive the valve rod 13 to circumferentially rotate along the axis of the actuating handle, the ball 14 is arranged at the lower end of the valve rod 13 in a linkage manner, the valve seat 15 is arranged in the valve body 12 and forms a sealing fit with the ball 14, and a. The above structure is a basic structure of the ball valve, and the handle or the linked driving member is mounted on the actuating handle 11, so that the valve rod 13 can be driven to rotate, and the ball 14 can be driven to synchronously rotate to seal or open the flow passage 16, which belongs to a conventional structure and is not further described herein.
An installation groove 21 is transversely formed in the valve body 12, the valve seat 15 is arranged in the installation groove 21 and can transversely slide along the direction of the installation groove 21, an elastic part is arranged at one end, far away from the ball body 14, in the installation groove 21, and the valve seat 15 has a tendency of sliding towards the ball body 14 based on elastic acting force provided by the elastic part.
The valve body 12 is provided with a plurality of locking grooves 22 along the outer circumference of the mounting groove 21, 2 locking grooves 22 in the present embodiment, and a locking member for preventing the valve seat 15 from being pushed back is provided in each locking groove 22; each locking component comprises a locking rod 31 and a return spring 32, one end of the locking rod 31, which is far away from the ball 14, is fixedly provided with a hinge shaft 33 which is hinged with the locking groove 22, the inner side of the locking rod 31 is provided with a locking hook 41, and the valve seat 15 is provided with a plurality of locking clamping grooves 42 which are matched with the locking hook 41; the return spring 32 is located outside one end of the locking lever 31 facing the ball 14, and allows the locking hook 41 to be inserted into the corresponding locking groove 42 by its own return force.
The locking hook 41 is triangular and has a first straight edge 411 and a first inclined edge 412, the first straight edge 411 extends towards the valve seat 15 and is perpendicular to the sliding direction of the valve seat 15, and the first straight edge 411 is located on one side close to the ball 14 compared with the first inclined edge 412;
each locking slot 42 is triangular and has a second straight edge 421 and a second oblique edge 422, the second straight edge 421 extends toward the locking rod 31 and is perpendicular to the sliding direction of the valve seat 15, and the second straight edge 421 is located on a side close to the ball 14 compared with the second oblique edge 422.
The specific principle is as follows:
when the valve seat 15 slides towards the ball 14, the first inclined edge 412 on the locking hook 41 and the second inclined edge 422 on the first locking groove 42 are in contact and have a guiding function, and then in the movement of the valve seat 15, the locking rod 31 is forced to rotate upwards and compress the return spring 32; until the second locking slot 42 comes, the locking hook 41 will be inserted into the second locking slot 42 under the action of the return spring 32; at this time, the displacement of the valve seat 15 is completed, and the first straight edge 411 of the lock hook 41 and the second straight edge 421 of the lock groove 42 abut against each other to generate resistance, thereby preventing the valve seat 15 from being pushed back.
The valve body 12 is provided with a cap 51 at a position close to the lock groove 22, the cap 51 is fixed to the valve body 12 by a bolt, the cap 51 has an abutment surface 52 on the inner side, and after the cap 51 is fixed to the valve body 12, the abutment surface 52 is engaged with the lock lever 31 to compress the return spring 32. The cover 51 achieves the purpose of convenient installation.
The elastic element comprises a piston 61, a first compression spring 62 and a second compression spring 63, a first compression chamber 611 and a second compression chamber 612 are respectively arranged at two side ends of the piston 61 along the sliding direction of the valve seat 15, the first compression spring 62 is positioned in the first compression chamber 611 and is compressed by the inner wall of the first compression chamber 611 and the outer wall of the valve seat 15; the second compression spring 63 is located in the second compression chamber 612 and is compressed by the inner wall of the second compression chamber 612 and the inner wall of the mounting groove 21.
The outer periphery of the valve seat 15 is provided with a seal ring 7 in the circumferential direction. The seal ring 7 is a commercially available product and can be purchased directly.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (4)
1. A ball valve for enhancing the sealing performance of a valve seat comprises an execution handle (11), a valve body (12), a valve seat (15), a ball body (14) and a valve rod (13), wherein a valve cavity is formed in the valve body (12) in a penetrating mode, the valve rod (13) is longitudinally arranged in the valve cavity in a penetrating mode, the execution handle (11) is connected to the upper end of the valve rod (13) and can drive the valve rod (13) to rotate circumferentially along the axis of the execution handle, the ball body (14) is arranged at the lower end of the valve rod (13) in a linkage mode, the valve seat (15) is arranged in the valve body (12) and forms sealing fit with the ball body (14), and a flow channel (16) is formed in the valve body (12); the method is characterized in that:
the valve body (12) is internally and transversely provided with an installation groove (21), the valve seat (15) is arranged in the installation groove (21) and can transversely slide along the direction of the installation groove (21), one end, far away from the ball body (14), of the installation groove (21) is provided with an elastic part, and the valve seat (15) has the tendency of sliding towards the ball body (14) based on the elastic acting force provided by the elastic part;
the valve body (12) is provided with a plurality of locking grooves (22) along the periphery of the mounting groove (21), and a locking component for preventing the valve seat (15) from being pushed back is arranged in each locking groove (22); each locking component comprises a locking rod (31) and a return spring (32), one end of the locking rod (31), which is far away from the ball body (14), is fixedly provided with a hinge shaft (33) which is hinged with the locking groove (22), the inner side of the locking rod (31) is provided with a locking hook (41), and the valve seat (15) is provided with a plurality of locking clamping grooves (42) which are matched with the locking hook (41) correspondingly to the locking hook; the reset spring (32) is positioned on the outer side of one end, facing the sphere (14), of the locking rod (31), and enables the locking clamping hook (41) to be embedded into the corresponding locking clamping groove (42) through self reset acting force;
the locking hook (41) is triangular and provided with a first straight edge (411) and a first inclined edge (412), the first straight edge (411) extends towards the valve seat (15) and is perpendicular to the sliding direction of the valve seat (15), and the first straight edge (411) is positioned on one side close to the ball body (14) compared with the first inclined edge (412);
each locking clamping groove (42) is triangular and is provided with a second straight edge (421) and a second inclined edge (422), the second straight edge (421) extends towards the locking rod (31) and is perpendicular to the sliding direction of the valve seat (15), and the second straight edge (421) is positioned on one side close to the ball body (14) compared with the second inclined edge (422).
2. A ball valve for enhancing the sealing of a valve seat as defined in claim 1, wherein: the valve body (12) is provided with a sealing cover (51) at a position close to the locking groove (22), the sealing cover (51) is fixed on the valve body (12) through bolts, the inner side of the sealing cover (51) is provided with an abutting surface (52), and after the sealing cover (51) is fixed on the valve body (12), the abutting surface (52) and the locking rod (31) are matched to compress the return spring (32).
3. A ball valve for enhancing the sealing of a valve seat as defined in claim 1, wherein: the elastic piece comprises a piston (61), a first compression spring (62) and a second compression spring (63), a first compression cavity (611) and a second compression cavity (612) are respectively formed in two side ends of the piston (61) along the sliding direction of the valve seat (15), and the first compression spring (62) is located in the first compression cavity (611) and compressed by the inner wall of the first compression cavity (611) and the outer wall of the valve seat (15); the second compression spring (63) is positioned in the second compression cavity (612) and is compressed by the inner wall of the second compression cavity (612) and the inner wall of the mounting groove (21).
4. A ball valve for enhancing the sealing of a valve seat as defined in claim 1, wherein: and a sealing ring (7) is arranged on the periphery of the valve seat (15) along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020412060.5U CN212055934U (en) | 2020-03-26 | 2020-03-26 | Ball valve for enhancing sealing performance of valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020412060.5U CN212055934U (en) | 2020-03-26 | 2020-03-26 | Ball valve for enhancing sealing performance of valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212055934U true CN212055934U (en) | 2020-12-01 |
Family
ID=73540072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020412060.5U Expired - Fee Related CN212055934U (en) | 2020-03-26 | 2020-03-26 | Ball valve for enhancing sealing performance of valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212055934U (en) |
-
2020
- 2020-03-26 CN CN202020412060.5U patent/CN212055934U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201201 |