CN213117709U - Stop valve capable of preventing excessive locking - Google Patents
Stop valve capable of preventing excessive locking Download PDFInfo
- Publication number
- CN213117709U CN213117709U CN202021623242.3U CN202021623242U CN213117709U CN 213117709 U CN213117709 U CN 213117709U CN 202021623242 U CN202021623242 U CN 202021623242U CN 213117709 U CN213117709 U CN 213117709U
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- Prior art keywords
- valve
- threaded
- valve body
- fixedly connected
- annular groove
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- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims 3
- 238000009964 serging Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
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- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The utility model relates to a valve field especially relates to a prevent stop valve of excessive locking. The to-be-solved technical problem of the utility model is to provide a can provide adjustable locking protection and avoid using too big and cause the fragile stop valve of valve. A stop valve for preventing excessive locking comprises a pipeline flange plate, a valve body, a connecting disc, a connecting bolt, a flange hole, a closed valve core, a supporting frame, a rotary disc, a tightness adjusting assembly and a valve rod; the pipeline flange plate is fixedly connected to two side walls of the valve body and communicated with the valve body, and a flange hole is formed in the pipeline flange plate; the connecting disc is connected with a flange on the top surface of the valve body through a connecting bolt; the supporting frame is fixedly connected to the top surface of the connecting disc; the tightness adjusting component is fixedly connected to the top of the support frame. The utility model discloses reached and provided adjustable locking protection and avoided using too big and cause the fragile effect of valve.
Description
Technical Field
The utility model relates to a valve field especially relates to a prevent stop valve of excessive locking.
Background
The stop valve is also called stop valve, belong to the forced seal type valve, so when the valve is closed, must exert pressure to the valve flap, in order to force the sealing surface not to leak, when the medium enters the valve from the valve flap below, the resistance that the operating force needs to overcome, it is the thrust produced by pressure of medium and friction force of the valve stem and packing, the force of closing the valve is greater than the force of opening the valve, so the diameter of the valve stem is bigger, otherwise will happen the trouble that the valve stem bends against, after the valve appears from the self-sealing, the medium flow direction of the stop valve is changed and entered the valve cavity from the valve flap above, at this moment, under the medium pressure, the force of closing the valve is small, and the force of opening the valve is big, the diameter of the valve stem. Ordinary stop valve when closing the valve, can receive water pressure to influence and need use very big power just can close the valve, but if the power of using great, when the inside water pressure of valve body is not enough, the valve rod is with hard excessively to lead to excessive locking, and many times such operation causes valve rod and case impaired easily, influences the life of valve, consequently needs urgent need to develop one kind and can provide adjustable locking protection and avoid the power too big and cause the quick stop valve that the valve is fragile.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome ordinary stop valve when closing the valve, can receive the water pressure influence and need use very big power could close the valve, nevertheless if the power of using great, when the inside water pressure of valve body is not enough, the valve rod power excessively leads to excessive locking, and such operation many times causes valve rod and case impaired easily, influences the life's of valve shortcoming, the to-be-solved technical problem of the utility model is to provide a can provide adjustable locking protection and avoid too big and cause the fragile stop valve of valve with power.
The utility model is achieved by the following concrete technical means:
a stop valve for preventing excessive locking comprises a pipeline flange plate, a valve body, a connecting disc, a connecting bolt, a flange hole, a closed valve core, a supporting frame, a rotary disc, a tightness adjusting assembly and a valve rod; the pipeline flange plate is fixedly connected to two side walls of the valve body and communicated with the valve body, and a flange hole is formed in the pipeline flange plate; the connecting disc is connected with a flange on the top surface of the valve body through a connecting bolt; the supporting frame is fixedly connected to the top surface of the connecting disc; the tightness adjusting component is fixedly connected to the top of the support frame; the valve rod is in threaded connection with the tightness adjusting assembly and extends into the valve body through the tightness adjusting assembly, the supporting frame and the connecting disc; the closed valve core is fixedly connected to the bottom of the valve rod and is positioned in the valve body; the rotary disc is fixedly connected to the top of the valve rod.
Furthermore, the tightness adjusting component comprises a threaded cylinder, a threaded cover and a jack; the threaded cylinder is fixedly connected to the top of the support frame, and the outer wall of the threaded cylinder is provided with external threads; the threaded cover is in threaded connection with the outer wall of the threaded cylinder, and the threaded cover is provided with an insertion hole; the valve rod penetrates through the jack and is in threaded connection with the inner wall of the threaded cylinder, and penetrates through the threaded cylinder and extends into the valve body.
Furthermore, the stop valve for preventing excessive locking also comprises an annular groove and a rubber ring; the outer top surface of the threaded cover is provided with an annular groove, and the annular groove is positioned outside the jack; the rubber ring is placed in the annular groove and clamped with the annular groove.
Furthermore, the inner walls of the threaded cover and the threaded cylinder are provided with internal threads.
Furthermore, the jack is matched with the rubber ring.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model achieves the effect of providing adjustable locking protection to avoid valve damage caused by excessive force, and in order to avoid valve damage caused by excessive locking, the tightness adjusting component is arranged above the supporting frame and is provided with the threaded cylinder, the valve rod penetrates through the threaded cylinder to rotate, and the threaded cylinder is internally provided with internal threads, so that the valve rod needs to move downwards along the threaded cylinder in the downward pushing process, the outer wall of the threaded cylinder is screwed with the threaded cover, the length of the threaded cylinder covered by the threaded cover can be adjusted, the height of the threaded cover protruding out of the threaded cylinder can be adjusted, when the valve rod drives the turntable to move downwards, the turntable can be clamped by the threaded cover, and the valve rod can not be continuously moved downwards, thereby avoiding excessive locking of the valve rod, the protruding height of the threaded cover can be adjusted, the locking strength of the valve rod can be adjusted to protect the service lives of the valve rod and the valve core, and meanwhile, meanwhile, the rubber ring can be hidden in the annular groove, so that the appearance is not influenced.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the tightness adjusting assembly of the present invention.
Fig. 3 is a first front view structural schematic diagram of the tightness adjusting assembly of the present invention.
Fig. 4 is a second main view structural schematic diagram of the tightness adjusting assembly of the present invention.
The labels in the figures are: the valve comprises a pipeline flange plate 1, a valve body 2, a connecting disc 3, a connecting bolt 4, a flange hole 5, a closed valve core 6, a support frame 7, a rotary disc 8, a tightness adjusting assembly 9, a threaded cylinder 91, an external thread 92, a threaded cover 93, an insertion hole 94, a valve rod 10, an annular groove 11 and a rubber ring 12.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
examples
A stop valve for preventing excessive locking is shown in figures 1-4 and comprises a pipeline flange plate 1, a valve body 2, a connecting disc 3, a connecting bolt 4, a flange hole 5, a closed valve core 6, a supporting frame 7, a rotary disc 8, a tightness adjusting assembly 9 and a valve rod 10; the pipeline flange plate 1 is fixedly connected to two side walls of the valve body 2 and communicated with the interior of the valve body 2, and a flange hole 5 is formed in the pipeline flange plate 1; the connecting disc 3 is connected with the top surface flange of the valve body 2 through a connecting bolt 4; the supporting frame 7 is fixedly connected to the top surface of the connecting disc 3; the tightness adjusting component 9 is fixedly connected to the top of the supporting frame 7; the valve rod 10 is in threaded connection with the tightness adjusting assembly 9 and extends into the valve body 2 through the tightness adjusting assembly 9, the support frame 7 and the connecting disc 3; the closed valve core 6 is fixedly connected to the bottom of the valve rod 10 and is positioned in the valve body 2; the rotary disk 8 is fixedly connected to the top of the valve rod 10.
The tightness adjusting component 9 comprises a threaded cylinder 91, a threaded cover 93 and a jack 94; the threaded cylinder 91 is fixedly connected to the top of the support frame 7, and the outer wall of the threaded cylinder 91 is provided with an external thread 92; the threaded cover 93 is in threaded connection with the outer wall of the threaded cylinder 91, and the threaded cover 93 is provided with an insertion hole 94; the valve rod 10 penetrates through the insertion hole 94 to be in threaded connection with the inner wall of the threaded cylinder 91, and penetrates through the threaded cylinder 91 to extend into the valve body 2.
The stop valve for preventing excessive locking also comprises an annular groove 11 and a rubber ring 12; the outer top surface of the threaded cover 93 is provided with an annular groove 11, and the annular groove 11 is positioned outside the jack 94; the rubber ring 12 is placed in the annular groove 11 and clamped with the annular groove 11.
The inner walls of the threaded cover 93 and the threaded cylinder 91 are provided with internal threads.
The socket 94 is fitted with the rubber ring 12.
When the stop valve is required to be installed in a pipeline, the stop valve is connected with a pipe fitting in the pipeline through the pipeline flange discs 1 on two sides of the valve body 2 in a flange mode, so that the stop valve can be connected into the pipeline, after the pipeline is communicated, fluid is conveyed through the pipeline by the stop valve, when the stop valve is required to be used for disconnecting the pipeline, a worker rotates the rotary disc 8, the rotary disc 8 drives the valve rod 10 to rotate and push downwards, the rotary disc 8 drives the closing valve core 6 to clamp a valve cavity in the valve body 2 after pushing, and the effect of stopping and stopping flow is achieved, but when the ordinary stop valve is used for closing the valve, the valve can be closed by using a large force due to the influence of water pressure, if the using force is large, excessive locking is caused by excessive force of the valve rod 10 when the water pressure in the valve body 2 is insufficient, the valve rod 10 and the, therefore, be provided with tightness adjusting part 9, tightness adjusting part 9 is located support frame 7 top, be provided with screw cylinder 91, valve rod 10 runs through screw cylinder 91 and rotates, set up the internal thread in screw cylinder 91, consequently, valve rod 10 downward pass in-process need follow screw cylinder 91 downstream, and screw cylinder 91 outer wall spiro union has screw cap 93, the length that covers screw cylinder 91 through screw cap 93, adjustable screw cap 93 bulges the height of screw cylinder 91, when valve rod 10 drives carousel 8 and passes downwards, can be blocked carousel 8 by screw cap 93, consequently, can't continue to move down and can avoid valve rod 10 excessive locking, through the bulge height of adjusting screw cap 93, the life of valve rod 10 locking strength protection valve rod 10 and case can be adjusted.
The stop valve for preventing excessive locking also comprises an annular groove 11 and a rubber ring 12; the outer top surface of the threaded cover 93 is provided with an annular groove 11, and the annular groove 11 is positioned outside the jack 94; the rubber ring 12 is placed in the annular groove 11 and clamped with the annular groove 11; the rubber ring 12 is arranged to further provide buffer protection for the downward movement of the valve rod 10, and meanwhile, the rubber ring 12 can be hidden in the annular groove 11, so that the appearance is not influenced.
Although the present disclosure has been described in detail with reference to the exemplary embodiments, the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present disclosure.
Claims (5)
1. A stop valve capable of preventing excessive locking is characterized by comprising a pipeline flange plate (1), a valve body (2), a connecting disc (3), a connecting bolt (4), a flange hole (5), a closed valve core (6), a supporting frame (7), a rotary disc (8), a tightness adjusting assembly (9) and a valve rod (10); the pipeline flange plate (1) is fixedly connected to two side walls of the valve body (2) and is communicated with the interior of the valve body (2), and a flange hole (5) is formed in the pipeline flange plate (1); the connecting disc (3) is connected with the top surface flange of the valve body (2) through a connecting bolt (4); the supporting frame (7) is fixedly connected to the top surface of the connecting disc (3); the tightness adjusting component (9) is fixedly connected to the top of the supporting frame (7); the valve rod (10) is in threaded connection with the tightness adjusting assembly (9) and extends into the valve body (2) through the tightness adjusting assembly (9), the support frame (7) and the connecting disc (3); the closed valve core (6) is fixedly connected to the bottom of the valve rod (10) and is positioned in the valve body (2); the rotary disc (8) is fixedly connected to the top of the valve rod (10).
2. An excessive-locking prevention shut-off valve as claimed in claim 1, wherein the tightness adjusting assembly (9) comprises a threaded barrel (91), a threaded cap (93) and a plug hole (94); the threaded cylinder (91) is fixedly connected to the top of the support frame (7), and an external thread (92) is formed in the outer wall of the threaded cylinder (91); the threaded cover (93) is in threaded connection with the outer wall of the threaded cylinder (91), and the threaded cover (93) is provided with an insertion hole (94); the valve rod (10) penetrates through the insertion hole (94) and is in threaded connection with the inner wall of the threaded cylinder (91), and penetrates through the threaded cylinder (91) and extends into the valve body (2).
3. An over-locking prevention stop valve according to claim 1, characterized in that it further comprises an annular groove (11) and a rubber ring (12); the outer top surface of the threaded cover (93) is provided with an annular groove (11), and the annular groove (11) is positioned outside the jack (94); the rubber ring (12) is arranged in the annular groove (11) and is clamped with the annular groove (11).
4. An excessive locking prevention stop valve according to claim 2, characterized in that the inner walls of the threaded cover (93) and the threaded cylinder (91) are provided with internal threads.
5. An anti-over-lock shut-off valve as claimed in claim 2, characterised in that the socket (94) is fitted with a rubber ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021623242.3U CN213117709U (en) | 2020-08-07 | 2020-08-07 | Stop valve capable of preventing excessive locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021623242.3U CN213117709U (en) | 2020-08-07 | 2020-08-07 | Stop valve capable of preventing excessive locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213117709U true CN213117709U (en) | 2021-05-04 |
Family
ID=75685166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021623242.3U Expired - Fee Related CN213117709U (en) | 2020-08-07 | 2020-08-07 | Stop valve capable of preventing excessive locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213117709U (en) |
-
2020
- 2020-08-07 CN CN202021623242.3U patent/CN213117709U/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 |
Granted publication date: 20210504 |