CN210890203U - Valve with seal ring dismounting-free type repairing mechanism - Google Patents
Valve with seal ring dismounting-free type repairing mechanism Download PDFInfo
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- CN210890203U CN210890203U CN201921849495.XU CN201921849495U CN210890203U CN 210890203 U CN210890203 U CN 210890203U CN 201921849495 U CN201921849495 U CN 201921849495U CN 210890203 U CN210890203 U CN 210890203U
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Abstract
The utility model belongs to the technical field of the mechanical valve sealing technique and specifically relates to a valve with dismantlement formula repair body is exempted from to sealing washer. The water inlet end and the water outlet end of the valve with the seal ring disassembly-free repair mechanism are provided with the disassembly-free repair mechanism, the disassembly-free repair mechanism comprises a compensation gasket, a push cylinder, a pre-tightening ring and a pull pin shaft, the compensation gasket is in contact with the seal ring, the push cylinder is arranged in the valve circular pipe, the pre-tightening ring is arranged in a groove of a valve flange, the pull pin shaft comprises a pressing block, a pin shaft and a screw, a pin shaft through hole is formed in the pre-tightening ring, a pin shaft moving hole is formed in the valve flange, the pin shaft penetrates through the pin shaft through hole and the pin shaft moving hole and then is in threaded connection with the screw, and the screw crown end face of the screw. The utility model discloses need not the dismouting valve when using, the repair cost is low, and is efficient, and material resources and overall structure stability of using manpower sparingly are splendid.
Description
Technical Field
The utility model belongs to the technical field of the mechanical valve sealing technique and specifically relates to a valve with dismantlement formula repair body is exempted from to sealing washer.
Background
Valves are accessories for pipes used to open and close the pipe, control flow direction, regulate and control parameters of the transport medium. In the practical application process of the valve, the most common failure mode is leakage, and the leakage of the valve is divided into internal leakage and external leakage. The sealing working condition for dealing with the leakage outside the valve is single, and mainly the internal pressure of the valve is more than or equal to the external pressure; however, two kinds of hard materials are mostly used for mechanical sealing against the internal leakage of the valve, so as to prevent the internal leakage.
The valves commonly used at present mainly comprise the following structures: the valve ball shell, set up the valve ball in the valve ball shell, a valve rod for adjusting valve ball rotation angle, the setting is in the valve ball shell and paste the sealing washer of tight valve ball's left end, the setting is in the valve ball shell and paste the sealing washer of tight valve ball's right-hand member, set up at the valve ball shell left end and with valve ball shell fixed connection's the valve pipe for intaking, set up at the valve ball shell right-hand member and with valve ball shell fixed connection's valve pipe for the play water, fix the valve flange at the valve pipe beginning for intaking and fix the valve flange at play water with the valve pipe end, the inner ring of valve flange is provided with the recess. This kind of valve that can prevent inside and reveal has the pretightning force in the valve ball shell, valve ball and polytetrafluoroethylene sealing washer, and when the valve operation, the sealed face of valve ball and sealing washer slides and rubs, and along with the use of valve, the polytetrafluoroethylene sealing washer that relative hardness is low can be worn and torn by the valve ball to lead to polytetrafluoroethylene sealing washer and valve ball to lose the pretightning force, both can not effectively laminate, and the valve seal is inefficacy, produces interior hourglass.
The conventional maintenance method for the situation is to replace a new polytetrafluoroethylene sealing ring or compensate the worn thickness of the polytetrafluoroethylene sealing ring. The two maintenance modes need to disassemble and assemble the pipeline and disassemble and assemble the valve, so that the maintenance cost is high, the efficiency is low, and manpower and material resources are consumed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a valve with sealing washer is exempted from to dismantle formula repair body need dismouting pipeline and dismouting valve, maintenance cost height, efficiency slow and consume the not enough of manpower and materials in overcoming the maintenance process after to the wearing and tearing of polytetrafluoroethylene sealing washer in the aforementioned prior art.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a valve with formula repair body is exempted from to dismantle by sealing washer, the valve includes valve ball shell, valve ball, valve rod, sealing washer, valve pipe and valve flange, and the inner ring of valve flange is provided with recess, its characterized in that: the water inlet end and the water outlet end of the valve are both provided with a disassembly-free repair mechanism, the disassembly-free repair mechanism comprises a compensation gasket, a push cylinder, a pre-tightening ring and a tensioning device, the compensation gasket, the push cylinder and the pre-tightening ring are sequentially arranged from the outer end of a sealing ring to the valve flange, the compensation gasket is inconsistent with the sealing ring, the push cylinder is arranged in the valve pipe, the pre-tightening ring is arranged in a groove of the valve flange, one end of the push cylinder is in contact with the compensation gasket, the other end of the push cylinder is in contact with the pre-tightening ring, and the pre-tightening ring is fixed on the valve flange through the tensioning device arranged in a circumferential array.
Furthermore, the tensioning device comprises a pressing block, a pin shaft and a screw, the end face area of the pressing block is larger than that of the pin shaft, one end of the pin shaft is fixedly connected with the pressing block, the other end of the pin shaft is provided with a threaded hole, the pre-tightening ring is provided with a pin shaft through hole, the valve flange is provided with a pin shaft moving hole, the pin shaft penetrates through the pin shaft through hole and the pin shaft moving hole and then is in threaded connection with the screw, the screw crown end face of the screw is abutted against the end face of the valve flange, so that the pin shaft and the pressing block are driven to move axially along the pin shaft moving hole by rotating the screw, the pressing block drives the pre-tightening ring to push the pushing cylinder, the pushing cylinder pushes the compensation gasket to compress the worn sealing ring, and the substantial technical.
Furthermore, the pre-tightening ring is provided with a pressing block mounting hole, the diameter of the pressing block mounting hole is larger than that of the pin shaft, the pressing block is mounted in the pressing block mounting hole and is abutted to the end face of the pressing block mounting hole, so that the pressing block can pull the pre-tightening ring to push the pre-tightening ring to the push cylinder in the screw screwing process, and the push cylinder can push the compensation gasket to compress the worn sealing ring.
Furthermore, an annular groove is formed in the outer wall of the pin shaft, and the pin shaft moving holes of the pin shaft and the valve flange are in interference fit through an O-shaped ring sleeved in the annular groove so as to enhance the sealing performance of the pin shaft and the valve flange.
Tensioning device can also be reached by following measure, and it includes bolt and nut, it perforates to be equipped with the bolt on the pretension ring, the last screw hole that is provided with of valve flange, the double-screw bolt of bolt pass bolt perforation back and valve flange's screw hole threaded connection to stretch out screw hole and nut screw thread fixed connection through the bolt end, make the terminal surface and the valve flange terminal surface of nut inconsistent, in order to do benefit to through revolving wrong nut, drive the bolt along screw hole axial displacement, and then make the screw crown of bolt drive pretension ring top to the ejector sleeve, make the ejector sleeve promote the sealing washer after the compensating pad will wear and tear and compress tightly, solved valve seal inefficacy, produce the substantive technical problem of interior hourglass.
Furthermore, the push cylinder is in transition fit with the valve circular tube so as to ensure the position stability of the push cylinder and prevent the push cylinder from being dislocated with the pre-tightening circular ring or/and the compensating gasket to influence the transmission of force among the pre-tightening circular ring, the push cylinder and the compensating gasket.
Furthermore, the depth of the groove of the valve flange is greater than the thickness of the pre-tightening ring, when the pre-tightening ring is pulled by the tensioning device, a space which axially moves in the groove of the valve flange is provided for the pre-tightening ring, and the outer end of the pre-tightening ring is positioned inside the valve flange, so that the connection between the valve flange and other pipelines is not affected by the installation of the pre-tightening ring.
The utility model has the advantages that: compared with the prior art, the utility model discloses a valve with sealing washer exempts from dismantlement formula repair body has following advantage: the valve is not required to be disassembled and assembled after a sealing ring of the valve is abraded, the pin shaft and the pressing block are driven to axially move along the pin shaft moving hole by rotating the screw of the tensioning device, and then the pressing block drives the pre-tightening ring to push the push cylinder, so that the push cylinder pushes the compensation gasket to tightly press the abraded sealing ring, the substantial technical problems of valve sealing failure and internal leakage are solved, and the process is low in cost, high in efficiency, labor and material resources are saved, strong in structural stability and convenient to operate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the partial structure of the present invention;
the valve comprises a valve ball shell 1, a valve ball 2, a valve rod 3, a sealing ring 4, a valve circular tube 5, a valve flange 6, a compensation gasket 7, a push cylinder 8, a pretightening circular ring 9, a tensioning device 10, a pin shaft 11, a screw 12, an O-shaped ring 13, a press block mounting hole 14, a pin shaft 15, a pin shaft 16 and a press block 17.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
Example 1
In the embodiment shown in fig. 1 and 2, the valve with the seal ring disassembly-free repair mechanism, the valve comprises a valve ball shell 1, a valve ball 2, a valve rod 3, a sealing ring 4, a valve circular tube 5 and a valve flange 6, wherein the inner ring of the valve flange 6 is provided with a groove, the water inlet end and the water outlet end of the valve are both provided with a disassembly-free repair mechanism, the disassembly-free repair mechanism comprises a compensation gasket 7, a push cylinder 8, a pre-tightening ring 9 and a tensioning device 10, the compensating gasket 7, the push cylinder 8 and the pre-tightening ring 9 are sequentially arranged from the outer end of the sealing ring 4 to the valve flange 6, the compensating gasket 7 is abutted against the sealing ring 4, the push cylinder 8 is arranged in the valve circular tube 5, the pre-tightening ring 9 is arranged in the groove of the valve flange 6, one end of the push cylinder 8 is contacted with the compensation gasket 7, the other end is contacted with the pre-tightening ring 9, the pre-tightening ring 9 is fixed on the valve flange 6 through tensioning devices 10 arranged in a circumferential array.
In this embodiment, the tightening device 10 includes a pressing block 17, a pin 11 and a screw 12, the area of the end surface of the pressing block 17 is larger than the area of the end surface of the pin 11, one end of the pin 11 is fixedly connected with the pressing block 17, the other end of the pin is provided with a threaded hole, the pre-tightening ring 9 is provided with a pressing block mounting hole 14 and a pin through hole 15, the diameter of the pressing block mounting hole 14 is larger than the diameter of the pin through hole 15, the valve flange 6 is provided with a pin moving hole 16, the pin 11 passes through the pressing block mounting hole 14, the pin through hole 15 and the pin moving hole 16 and then is in threaded connection with the screw 12, the end surface of the screw crown of the screw 12 is in contact with the end surface of the valve flange 6, so as to drive the pin 11 and the pressing block 17 to axially move along the pin moving hole 16 by rotating the screw 12, further drive the pressing block 17 to push the pre, the valve solves the substantial technical problems of valve sealing failure and internal leakage.
In this embodiment, an annular groove is formed in the outer wall of the pin shaft 11, and the pin shaft 11 and the pin shaft moving hole 16 of the valve flange 6 are in interference fit with each other through an O-ring 13 which is sleeved in the annular groove, so that the sealing performance of the pin shaft 11 and the valve flange 6 is enhanced.
In this embodiment, the push cylinder 8 is in transition fit with the valve circular tube 5, which is beneficial to ensuring the position stability of the push cylinder 8 and preventing the push cylinder 8 and the pre-tightening circular ring 9 or/and the compensating gasket 7 from being dislocated to affect the transmission of force among the pre-tightening circular ring 9, the push cylinder 8 and the compensating gasket 7.
In this embodiment, the depth of the groove of the valve flange 6 is greater than the thickness of the pre-tightening ring 9, so that when the pre-tightening ring 9 is pulled by the tensioning device 10, a space for the pre-tightening ring 9 to axially move in the groove of the valve flange 6 is provided, and the outer end of the pre-tightening ring 9 is located inside the valve flange 6, so as to ensure that the connection between the valve flange 6 and other pipelines is not affected by the installation of the pre-tightening ring 9.
The working principle is as follows: the valve is not required to be disassembled and assembled after a sealing ring of the valve is abraded, the pin shaft 11 and the pressing block 17 are driven to axially move along the pin shaft moving hole 16 by rotating the screw 12, and then the pressing block 17 drives the pre-tightening ring 9 to be ejected to the push cylinder 8, so that the push cylinder 8 pushes the compensating gasket 7 to compress the abraded sealing ring 4, the substantial technical problems of valve sealing failure and inner leakage are solved, and the process is low in cost, high in efficiency, labor and material resources are saved, strong in structural stability and convenient to operate.
Example 2
Example 2 is essentially the same as example 1, except that: the tensioning device in example 2 is achieved by the following measures: the tensioning device comprises a bolt and a nut, a bolt perforation is arranged on the pre-tightening ring 9, a threaded hole is formed in the valve flange 6, a stud of the bolt penetrates through the bolt perforation and is in threaded connection with the threaded hole of the valve flange, and extends out of the threaded hole through the tail end of the bolt to be fixedly connected with the nut thread, so that the end face of the nut is abutted against the end face of the valve flange 6, the nut is screwed to drive the bolt to axially move along the threaded hole, the nut cap of the bolt drives the pre-tightening ring 9 to push the push cylinder, the push cylinder 9 pushes the compensating gasket 7 to compress the worn sealing ring 4, and the substantial technical problem that internal leakage is caused by failure of valve sealing is solved.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a valve with formula repair body is exempted from to dismantle by sealing washer, the valve includes valve ball shell, valve ball, valve rod, sealing washer, valve pipe and valve flange, and the inner ring of valve flange is provided with recess, its characterized in that: the water inlet end and the water outlet end of the valve are both provided with a disassembly-free repair mechanism, the disassembly-free repair mechanism comprises a compensation gasket, a push cylinder, a pre-tightening ring and a tensioning device, the compensation gasket, the push cylinder and the pre-tightening ring are sequentially arranged from the outer end of a sealing ring to the valve flange, the compensation gasket is inconsistent with the sealing ring, the push cylinder is arranged in the valve pipe, the pre-tightening ring is arranged in a groove of the valve flange, one end of the push cylinder is in contact with the compensation gasket, the other end of the push cylinder is in contact with the pre-tightening ring, and the pre-tightening ring is fixed on the valve flange through the tensioning device arranged in a circumferential array.
2. The valve with the seal ring disassembly-free repair mechanism of claim 1, wherein: the tensioning device comprises a pressing block, a pin shaft and a screw, the end face area of the pressing block is larger than that of the pin shaft, one end of the pin shaft is fixedly connected with the pressing block, the other end of the pin shaft is provided with a threaded hole, a pin shaft through hole is formed in the pre-tightening ring, a pin shaft moving hole is formed in the valve flange, the pin shaft penetrates through the pin shaft through hole and the pin shaft moving hole and then is in threaded connection with the screw, and the screw crown end face of the screw is abutted to the end face of the.
3. The valve with the seal ring disassembly-free repair mechanism of claim 2, wherein: and a pressing block mounting hole is formed in the pre-tightening ring, the diameter of the pressing block mounting hole is larger than that of the pin shaft through hole, and the pressing block is mounted in the pressing block mounting hole.
4. The valve with the seal ring disassembly-free repair mechanism as claimed in claim 2 or 3, wherein: an annular groove is formed in the outer wall of the pin shaft, and the pin shaft and a pin shaft moving hole of the valve flange are in interference fit through an O-shaped ring sleeved in the annular groove.
5. The valve with the seal ring disassembly-free repair mechanism of claim 1, wherein: the tensioning device comprises a bolt and a nut, a bolt perforation is arranged on the pre-tightening ring, a threaded hole is formed in the valve flange, a stud of the bolt penetrates through the bolt perforation and then is in threaded connection with the threaded hole of the valve flange, and extends out of the threaded hole through the tail end of the bolt to be fixedly connected with the nut thread, so that the end face of the nut is abutted to the end face of the valve flange.
6. The valve with the seal ring disassembly-free repair mechanism of claim 1, wherein: the push cylinder is in transition fit with the valve circular tube.
7. The valve with the seal ring disassembly-free repair mechanism of claim 1, wherein: the depth of the groove of the valve flange is larger than the thickness of the pre-tightening ring, and the outer end of the pre-tightening ring is located inside the valve flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921849495.XU CN210890203U (en) | 2019-10-31 | 2019-10-31 | Valve with seal ring dismounting-free type repairing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921849495.XU CN210890203U (en) | 2019-10-31 | 2019-10-31 | Valve with seal ring dismounting-free type repairing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890203U true CN210890203U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921849495.XU Active CN210890203U (en) | 2019-10-31 | 2019-10-31 | Valve with seal ring dismounting-free type repairing mechanism |
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| CN (1) | CN210890203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164554A (en) * | 2020-09-16 | 2021-01-01 | 华翔翔能科技股份有限公司 | Movable transformer oil filter |
-
2019
- 2019-10-31 CN CN201921849495.XU patent/CN210890203U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164554A (en) * | 2020-09-16 | 2021-01-01 | 华翔翔能科技股份有限公司 | Movable transformer oil filter |
| CN112164554B (en) * | 2020-09-16 | 2021-11-23 | 华翔翔能科技股份有限公司 | Movable transformer oil filter |
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