CN216789294U - Double-floating soft-sealing rotary ball valve - Google Patents
Double-floating soft-sealing rotary ball valve Download PDFInfo
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- CN216789294U CN216789294U CN202220326446.3U CN202220326446U CN216789294U CN 216789294 U CN216789294 U CN 216789294U CN 202220326446 U CN202220326446 U CN 202220326446U CN 216789294 U CN216789294 U CN 216789294U
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Abstract
The utility model relates to a double-floating soft sealing rotary ball valve which comprises a valve body, a valve rod, a valve core and a valve seat, wherein a flow channel is arranged in the valve body, the valve rod is rotatably installed on the valve body, the valve core is fixedly installed on the valve rod, a first installation slide rail is arranged on the periphery of the valve core, a movable slide block is slidably installed in the first installation slide rail, an arc surface is arranged on the periphery of the movable slide block, a second installation slide rail is arranged in the flow channel, the valve seat is slidably installed in the second installation slide rail, a sealing ring for attaching and sealing with the arc surface is arranged on the valve seat, the sealing ring is made of PTFE (polytetrafluoroethylene), RPTFE or PEEK (polyether ether ketone), a first notch is arranged on the inner periphery of the movable slide block, a first rubber sealing ring which is abutted against the valve core is arranged in the first notch, a second notch is arranged on the periphery of the valve seat, and a second rubber sealing ring which is abutted against the valve body is arranged in the second notch. By adopting the scheme, the double-floating soft sealing rotary ball valve is provided, wherein the movable sliding block and the valve seat are subjected to sliding adjustment under the hydraulic action to compensate and realize high-efficiency sealing in a closed state.
Description
Technical Field
The utility model relates to a double-floating soft sealing rotary ball valve.
Background
The rotary ball valve is developed by combining the superior sealing performance of the ball valve and the advantageous structure of the butterfly valve, has the superior bidirectional pressure bearing performance of the fixed ball valve, can be used in a liquid pipeline containing fine particles and the like, and has the use advantages of high use temperature, long service life and the like. The valve is essentially the combination of the structure and the function of a butterfly valve and an eccentric half ball valve, and is superior to the half ball valve and a fixed ball valve in installation. The sealing principle combines the front end sealing of the fixed ball valve and the forced sealing of the eccentric butterfly valve, thereby realizing the high-low bidirectional cut-off in the pipeline. When the water pump stops running and the water outlet pressure of the pipeline is higher than the water inlet pressure, the rotary ball valve can effectively prevent the backwater from flowing backwards. This is also a function that butterfly valves and half-ball valves do not have.
The existing rotary ball valve has the following problems: the high-efficient sealed valve core that mainly passes through the side of flow of coming of ball-spinning valve exerts pressure for the valve core offsets and compensation extrusion disk seat towards the side direction of flow of effluenting, realizes that high strength is sealed, however, because the valve core needs to carry out fixed connection with the valve rod, and the quality of valve core itself is great, consequently, the offset is less, makes sealed degree limited.
Therefore, how to improve the sealing performance of the rotary valve becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a double-floating soft sealing rotary ball valve which can realize high-efficiency sealing by performing sliding adjustment on a movable sliding block and a valve seat under the hydraulic action in a closed state.
In order to achieve the purpose, the utility model provides the following technical scheme: including valve body, valve rod, case and disk seat, be provided with the runner in the valve body, the valve rod rotates to be installed in the valve body, case fixed mounting is in valve rod, its characterized in that: the utility model discloses a valve core, including case, valve core, valve seat, valve core periphery, valve seat, valve body, valve seat, valve core, valve seat and valve body, the valve core periphery is provided with the first installation slide rail that extends along the direction of runner, the gliding of first installation slide rail in the first installation slide rail is installed movable slider, the valve seat is provided with and is used for the sealing washer sealed with the arc surface laminating, the material of sealing washer is PTFE or RPTFE or PEEK, the interior week of movable slider is provided with first scarce groove, be provided with the first rubber seal ring that offsets with the case in the first scarce groove, the valve seat periphery is provided with the second scarce groove, be provided with the second rubber seal ring that offsets with the valve body in the second scarce groove.
The utility model is further configured to: the inner periphery of the movable sliding block is provided with a third notch groove, a third rubber sealing ring which is abutted against the valve core is arranged in the third notch groove, a pressure bearing opening is formed in one side, facing the valve seat, of the third notch groove, and a pressure bearing surface is formed in the side, facing the pressure bearing opening, of the valve core, of the third rubber sealing ring.
The utility model is further configured to: the valve body is characterized in that a first dismounting ring is arranged on one side, located on the track direction of the first installation slide rail, of the valve core, a first bolt is arranged between the first dismounting ring and the valve core, a first fixing ring is arranged on one side, located on the track direction of the first installation slide rail, of the valve core in an integrated forming mode and deviates from the side of the first dismounting ring, a second dismounting ring is arranged on one side, located on the track direction of the second installation slide rail, of the valve body in an integrated forming mode, a second bolt is arranged between the second dismounting ring and the valve body, and a second fixing ring is arranged on one side, located on the track direction of the second installation slide rail, of the valve body in an integrated forming mode and deviates from the side of the second dismounting ring.
The utility model is further configured to: first dismouting ring is located the track that the activity slider followed first installation slide rail and deviates from the valve stem side, second dismouting ring is located the disk seat and deviates from the valve stem side along the track of second installation slide rail, the axial of first bolt is along the track direction of first installation slide rail, the axial of second bolt is along the track direction of second installation slide rail, the head of first bolt is located first bolt and deviates from the valve stem side along the track of first installation slide rail, the head of second bolt is located the track that the second bolt follows second installation slide rail and deviates from the valve stem side.
The utility model is further configured to: the number of the second grooves is a plurality of, and the number of the second rubber sealing rings is matched with the number of the second grooves.
The utility model is further configured to: the valve seat is coaxially provided with a locking ring, the sealing ring is arranged between the locking ring and the valve seat, a locking bolt is arranged between the locking ring and the valve seat, and the axial direction of the locking bolt is parallel to the axial direction of the valve seat.
The utility model is further configured to: the locking ring protrudes towards the sealing ring side in the axial direction and is provided with a tightening ring, the tightening ring is gradually arranged in a necking mode along the direction of being away from the locking ring in the axial direction, and the sealing ring is provided with a tightening slot for the tightening ring to be inserted.
The utility model is further configured to: the disk seat axial is provided with a plurality of arc anticreep inserted sheets towards the sealing washer side along circumference interval range, the sealing washer corresponds each arc anticreep inserted sheet and is provided with the arc anticreep jack that supplies the arc anticreep inserted sheet that corresponds to insert the establishment, and each arc anticreep jack runs through the sealing washer along the axial of sealing washer, it is provided with the arc anticreep slot that the establishment was inserted to supply the arc anticreep inserted sheet that corresponds to correspond each arc anticreep inserted sheet on the locking ring.
The utility model is further configured to: each arc-shaped anti-falling slot is arranged on the tensioning ring.
The utility model is further configured to: the arc surface is a cubic curved surface.
By adopting the technical scheme, 1, when the valve core rotates and is matched with the valve seat to seal the flow channel, the incoming flow hydraulic pressure generated at the incoming flow side of the flow channel drives the movable sliding block to extrude towards the valve seat, and the forward hydraulic compensation is provided to enhance the sealing strength between the movable sliding block and the valve seat; 2. the matching of the arc surface and the sealing ring ensures effective sealing closure of the movable sliding block and the valve seat under the action of high-strength soft sealing, and the first rubber sealing ring and the second rubber sealing ring realize sealing closure of the movable sliding block and the valve core and sealing closure of the valve seat and the valve body, so that comprehensive and efficient sealing is finally realized; 3. the sealing ring is made of PTFE (polytetrafluoroethylene), RPTFE (polytetrafluoroethylene) or PEEK (polyether-ether-ketone), so that the sealing ring has the characteristics of better corrosion resistance, wear resistance and the like, and the service life is prolonged.
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 the drawings without creative efforts.
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is an enlarged view of B in FIG. 2;
FIG. 4 is an enlarged view of C in FIG. 2;
fig. 5 is an enlarged view of D in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-5, the utility model discloses a double-floating soft-sealing rotary ball valve, which comprises a valve body 1, a valve rod 2, a valve core 3 and a valve seat 4, wherein a flow passage 11 extending left and right is arranged in the valve body 1, the valve rod 2 is axially and vertically arranged in the valve body 1 in a penetrating manner and rotatably arranged on the valve body 1, the valve core 3 is fixedly arranged on the valve rod 2 in a key connection manner, in addition, a first installation slide rail 31 extending left and right is arranged on the periphery of the valve core 3, an annular movable slide block 5 is slidably arranged in the first installation slide rail 31, an arc surface 51 used for being matched and sealed with the valve seat 4 is arranged on the periphery of the movable slide block 5, in addition, a second installation slide rail 12 extending left and right is arranged in the flow passage 11, the valve seat 4 is slidably arranged in the second installation slide rail 12 correspondingly, the valve seat 4 is provided with a sealing ring 6 used for being attached and sealed with the arc surface 51, and the material of sealing washer 6 is PTFE or RPTFE or PEEK, in addition, the inner periphery of activity slider 5 is provided with first scarce groove, first scarce inslot is provided with first rubber seal ring 71 with valve core 3 counterbalance, and the disk seat 4 periphery is provided with the second scarce groove, the second lacks the inslot and is provided with the second rubber seal ring 72 with valve body 1 counterbalance.
Therefore, 1, when the valve core 3 rotates to cooperate with the valve seat 4 to seal the flow channel 11, the incoming flow hydraulic pressure generated at the incoming flow side of the flow channel 11 drives and extrudes the movable slider 5 towards the valve seat 4, and positive hydraulic compensation is provided to enhance the sealing strength between the movable slider 5 and the valve seat 4, and in addition, the outgoing flow hydraulic pressure generated at the outgoing flow side of the flow channel 11 drives and extrudes the valve seat 4 towards the movable slider 5, and reverse hydraulic compensation is provided to enhance the sealing strength between the movable slider 5 and the valve seat 4, so that the rotary ball valve can perform high-strength sealing under the action of double compensation, and the leakage phenomenon is prevented; 2. the arc surface 51 is matched with the sealing ring 6 to ensure effective sealing closure of the movable sliding block 5 and the valve seat 4 under the action of high-strength soft sealing, and the first rubber sealing ring 71 and the second rubber sealing ring 72 realize sealing closure of the movable sliding block 5 and the valve core 3 and sealing closure of the valve seat 4 and the valve body 1, so that comprehensive and efficient sealing is finally realized; 3. the seal ring 6 is made of PTFE, RPTFE or PEEK, so that the seal ring 6 has the characteristics of better corrosion resistance, wear resistance and the like, and the service life is prolonged.
In addition, in this embodiment, a third groove is formed in the inner periphery of the movable slider 5, and a third rubber sealing ring 73 abutting against the valve element 3 is disposed in the third groove, wherein the third groove is located on one side of the movable slider 5 facing the valve seat 4 and is provided with a pressure-bearing opening, and the valve element 3 is located on the side of the third rubber sealing ring 73 facing the pressure-bearing opening and is provided with a pressure-bearing surface 32, so that the third rubber sealing ring 73 is not only directly contacted with the valve element 3 to provide a second secondary seal, but also under the action of forward hydraulic compensation, the movable slider 5 slides towards the valve seat 4 to drive the third rubber sealing ring 73 to be pressed towards the pressure-bearing surface 32, thereby realizing a third tertiary seal and realizing a sealing action with higher strength.
Preferably, the first slot and the third slot in this embodiment are located in the first mounting rail 31, and the second slot is located in the second mounting rail 12, so that the first rubber sealing ring 71, the second rubber sealing ring 72, and the third rubber sealing ring 73 can provide sealing more stably in the process of adjusting the movable slider 5 and the valve seat 4 left and right.
Preferably, the number of the second grooves in this embodiment is several (2 in this embodiment), and the number of the second rubber sealing rings 72 is adapted to the number of the second grooves, so that the sealing strength is improved by multiple sealing.
In addition, in the present embodiment, a first dismounting ring 33 is disposed on one side of the valve core 3 in the track direction of the first mounting rail 31, wherein a first bolt 34 is disposed between the first dismounting ring 33 and the valve core 3, so that the first dismounting ring 33 and the valve core 3 can be detachably connected through the first bolt 34, and further, a first fixing ring 35 is integrally formed on the side of the valve core 3 in the track direction of the first mounting rail 31 away from the first dismounting ring 33, so that the effective and stable mounting of the movable slider 5 is ensured under the limit of two sides of the first dismounting ring 33 and the first fixing ring 35, and the dismounting and mounting maintenance of the movable slider 5 can be performed, similarly, a second dismounting ring 13 is disposed on one side of the valve body 1 in the track direction of the second mounting rail 12, a second bolt 14 is disposed between the second dismounting ring 13 and the valve body 1, so that the second dismounting ring 13 and the valve body 1 can be detachably connected through the second bolt 14, in addition, the valve body 1 is provided with a second fixing ring 15 formed integrally in the direction of the track of the second mounting slide rail 12 away from the second dismounting ring 13.
Preferably, in this embodiment, the first dismounting ring 33 is located on the right side of the movable slider 5, the second dismounting ring 13 is located on the right side of the valve seat 4, the axial direction of the first bolt 34 and the axial direction of the second bolt 14 are along the left-right direction, the head of the first bolt 34 is located on the right side of the first bolt 34, and the head of the second bolt 14 is located on the right side of the second bolt 14, so that the second bolt 14, the second dismounting ring 13, the valve seat 4, the first bolt 34, the first dismounting ring 33, and the movable slider 5 are dismounted in sequence without dismounting the valve body 3 from the valve rod 2, and the maintenance and replacement are convenient.
Preferably, the pressure-bearing surface 32 in this embodiment is disposed on the first removable ring 33.
In addition, in the present embodiment, the locking ring 8 is coaxially disposed on the left side of the valve seat 4, wherein the sealing ring 6 is clamped between the locking ring 8 and the valve seat 4, and the locking bolt 81 is disposed between the locking ring 8 and the valve seat 4, and the axial direction of the locking bolt 81 is along the left-right direction, so that the sealing ring 6 is clamped and mounted on the valve seat 4 by the locking ring 8 with high strength for use, and the sealing ring 6 can be easily removed and replaced.
In addition, in this embodiment, the right end of the locking ring 8 is provided with the tightening ring 82 in a protruding manner, and the tightening ring 82 is gradually arranged in a necking manner towards the right side, and correspondingly, the sealing ring 6 is provided with the tightening slot 61 into which the tightening ring 82 is inserted, so that the tightening ring 82 is inserted into the tightening slot 61 to further expand the sealing ring 6 in the locking process of the locking bolt 81 of the locking ring 8, the sealing ring 6 is contracted inwards along the radial direction, and the sealing fit strength with the movable sliding block 5 is higher.
Furthermore, in this embodiment 4 axial of disk seat is provided with a plurality of arc anticreep inserted sheet 16 towards 6 sides of sealing washer along circumference interval arrangement, and is corresponding, sealing washer 6 corresponds each arc anticreep inserted sheet 16 and is provided with the arc anticreep inserted sheet 16 that supplies to correspond and inserts the arc anticreep jack 62 of establishing, and each arc anticreep jack 62 runs through sealing washer 6 along the axial of sealing washer 6, and is corresponding in addition, it is provided with the arc anticreep inserted sheet 16 that supplies to correspond and inserts the arc anticreep slot 83 of establishing to correspond each arc anticreep inserted sheet 16 on locking ring 8 for after the installation finishes, wear to establish arc anticreep jack 62 and arc anticreep slot 83 in proper order through arc anticreep inserted sheet 16 and carry out absolute radial anticreep to sealing washer 6, guarantee that the effective installation of sealing washer 6 uses.
Preferably, each of the arc-shaped anti-falling slots 83 in this embodiment is disposed in the tightening ring 82, so that the overall volume of the sealing ring 6 and the tightening ring 8 is smaller, and the length of the arc-shaped anti-falling insert 16 is shorter to simplify the structure.
Preferably, the arc surface 51 in this embodiment is a cubic curved surface, so that when the incoming flow side hydraulically drives the movable slider 5 to face right, the multiple curved surfaces can realize more perfect and effective matching between the movable slider 5 and the sealing ring 6, thereby achieving a better sealing effect and ensuring zero leakage.
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 utility model. 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 (9)
1. The utility model provides a two floating soft seal spin-ball valves, includes valve body, valve rod, case and disk seat, be provided with the runner in the valve body, the valve rod rotates to be installed in the valve body, case fixed mounting is in valve rod, its characterized in that: the utility model discloses a valve core, including case, valve core, valve seat, valve core periphery, valve seat, valve body, valve seat, valve core, valve seat and valve body, the valve core periphery is provided with the first installation slide rail that extends along the direction of runner, the gliding of first installation slide rail in the first installation slide rail is installed movable slider, the valve seat is provided with and is used for the sealing washer sealed with the arc surface laminating, the material of sealing washer is PTFE or RPTFE or PEEK, the interior week of movable slider is provided with first scarce groove, be provided with the first rubber seal ring that offsets with the case in the first scarce groove, the valve seat periphery is provided with the second scarce groove, be provided with the second rubber seal ring that offsets with the valve body in the second scarce groove.
2. A double floating soft seal rotary valve according to claim 1, wherein: the inner periphery of the movable sliding block is provided with a third notch groove, a third rubber sealing ring which is abutted against the valve core is arranged in the third notch groove, a pressure bearing opening is formed in one side, facing the valve seat, of the third notch groove, and a pressure bearing surface is formed in the side, facing the pressure bearing opening, of the valve core, of the third rubber sealing ring.
3. A double floating soft seal rotary valve according to claim 2, wherein: the valve body is characterized in that a first dismounting ring is arranged on one side, located on the track direction of the first installation slide rail, of the valve core, a first bolt is arranged between the first dismounting ring and the valve core, a first fixing ring is arranged on one side, located on the track direction of the first installation slide rail, of the valve core in an integrated forming mode and deviates from the side of the first dismounting ring, a second dismounting ring is arranged on one side, located on the track direction of the second installation slide rail, of the valve body in an integrated forming mode, a second bolt is arranged between the second dismounting ring and the valve body, and a second fixing ring is arranged on one side, located on the track direction of the second installation slide rail, of the valve body in an integrated forming mode and deviates from the side of the second dismounting ring.
4. A dual floating soft seal rotary valve according to claim 3 wherein: first dismouting ring is located the track that the activity slider followed first installation slide rail and deviates from the valve stem side, second dismouting ring is located the disk seat and deviates from the valve stem side along the track of second installation slide rail, the axial of first bolt is along the track direction of first installation slide rail, the axial of second bolt is along the track direction of second installation slide rail, the head of first bolt is located first bolt and deviates from the valve stem side along the track of first installation slide rail, the head of second bolt is located the track that the second bolt follows second installation slide rail and deviates from the valve stem side.
5. A double floating soft seal rotary valve according to claim 1, wherein: the number of the second grooves is a plurality of, and the number of the second rubber sealing rings is matched with the number of the second grooves.
6. A double floating soft seal rotary valve according to claim 1, wherein: the valve seat is coaxially provided with a locking ring, the sealing ring is arranged between the locking ring and the valve seat, a locking bolt is arranged between the locking ring and the valve seat, and the axial direction of the locking bolt is parallel to the axial direction of the valve seat.
7. A dual float soft seal rotary valve as claimed in claim 6 wherein: the locking ring protrudes towards the sealing ring side in the axial direction and is provided with a tightening ring, the tightening ring is gradually arranged in a necking mode along the direction of being away from the locking ring in the axial direction, and the sealing ring is provided with a tightening slot for the tightening ring to be inserted.
8. A dual floating soft seal rotary valve according to claim 7 wherein: disk seat axial is provided with a plurality of arc anticreep inserted sheets towards the sealing washer side along circumference interval range, the sealing washer corresponds each arc anticreep inserted sheet and is provided with the arc anticreep inserted sheet that supplies to correspond and inserts the arc anticreep jack of establishing, and each arc anticreep jack runs through the sealing washer along the axial of sealing washer, it inserts the arc anticreep slot of establishing to correspond each arc anticreep inserted sheet on the locking ring to be provided with the arc anticreep inserted sheet that supplies to correspond.
9. A dual floating soft seal rotary valve according to claim 8 wherein: each arc-shaped anti-falling slot is arranged on the tensioning ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220326446.3U CN216789294U (en) | 2022-02-17 | 2022-02-17 | Double-floating soft-sealing rotary ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220326446.3U CN216789294U (en) | 2022-02-17 | 2022-02-17 | Double-floating soft-sealing rotary ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216789294U true CN216789294U (en) | 2022-06-21 |
Family
ID=82018635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220326446.3U Active CN216789294U (en) | 2022-02-17 | 2022-02-17 | Double-floating soft-sealing rotary ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216789294U (en) |
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2022
- 2022-02-17 CN CN202220326446.3U patent/CN216789294U/en active Active
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