CN212251202U - Adjusting valve pressure cylinder convenient to replace - Google Patents
Adjusting valve pressure cylinder convenient to replace Download PDFInfo
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- CN212251202U CN212251202U CN202020620701.6U CN202020620701U CN212251202U CN 212251202 U CN212251202 U CN 212251202U CN 202020620701 U CN202020620701 U CN 202020620701U CN 212251202 U CN212251202 U CN 212251202U
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Abstract
The utility model discloses a governing valve pressure section of thick bamboo convenient to change, governing valve pressure section of thick bamboo convenient to change include valve body, valve gap, valve rod, case and pressure section of thick bamboo, the valve gap sets up the valve body top, the disk seat sets up in the valve body, it is in to press a section of thick bamboo setting between valve gap and the disk seat, the valve rod passes the valve gap is connected with the case in the valve body. The threaded connection mode is changed into a mode that the valve seat and the pressing cylinder are connected with the valve body through the valve cover and are abutted tightly, so that the valve cover and the valve body are separated to finish the disassembly, and the bolt connection is easy to disassemble; the sleeve is arranged above the valve core, the pressing cylinder is connected with the sleeve in a sealing and sliding mode, the sleeve is only connected between the sleeves in a sealing and sliding mode, contact between the valve core and the sleeve is effectively avoided, the service life of the valve core can be prolonged, and meanwhile the sleeve moves in the pressing cylinder to guarantee that the valve core falls and is coaxial with the valve seat, and good sealing performance is kept.
Description
Technical Field
The utility model belongs to the technical field of the governing valve technique and specifically relates to a governing valve pressure section of thick bamboo convenient to change.
Background
In the field of industrial automation process control, a final control element for changing process parameters such as medium flow, pressure, temperature, liquid level and the like by receiving a control signal output by an adjusting control unit and by means of power operation generally comprises an actuating mechanism and a valve, and the adjusting valve has the advantages of compact structure, less pressure drop loss, small valve seat leakage, accurate flow characteristic and the like and is used in large quantity.
However, the valve seat of the regulating valve in the prior art is installed in the middle cavity of the valve body in a threaded connection mode, and needs to be installed and disassembled by means of a special tool, so that the installation, the field maintenance and the replacement of products are very inconvenient; in addition, in order to seal the valve body, a sealing layer is arranged between the upper end of the valve core and the pressure cylinder in the prior art, and the long-time contact between the valve core and the pressure cylinder leads to the reduction of the service life of the valve core.
SUMMERY OF THE UTILITY MODEL
The utility model provides a regulating valve pressure cylinder which is convenient to replace aiming at the defects in the prior art;
in order to solve the technical problem, the utility model discloses a following technical scheme can solve: the adjusting valve pressure cylinder convenient to replace comprises a valve body, a valve cover, a valve rod, a valve core and a pressure cylinder, wherein the valve cover is arranged above the valve body, the valve seat is arranged in the valve body, the pressure cylinder is arranged between the valve cover and the valve seat, a sleeve is connected to the valve core, and the valve rod penetrates through the sleeve and is connected with the valve core in the valve body.
In the above aspect, preferably, the valve cover is connected to the valve body by a bolt. Simple connection mode convenient to detach.
In the above scheme, preferably, be equipped with the sealing washer between disk seat and the valve body, the valve gap with be equipped with the sealing washer between the valve body. Prevent to form between valve gap and the valve body and leak and prevent to form between disk seat and the pressure section of thick bamboo and leak in.
In the above aspect, preferably, the valve rod is screwed to the sleeve. The threaded connection has the advantages that the parts are replaced when the parts are broken, and the parts are not required to be integrally replaced like an integral part, so that unnecessary waste is reduced.
In the above aspect, preferably, a corrugated sealing block is disposed between the valve rod and the valve cover. The sealing is to ensure the sealing between the valve rod and the valve cover.
In the above aspect, the pressure cylinder and the sleeve on the upper side of the valve element are preferably connected in a sealing and sliding manner. The defect that the loss of the valve core is increased due to the fact that the valve core moves in the pressing cylinder is overcome, the sleeve is always in sealing connection with the pressing cylinder, the medium is prevented from leaking, meanwhile, the sleeve is in sliding connection with the pressing cylinder, and meanwhile, the valve core can be coaxial with the valve seat when moving, and good sealing performance is kept.
The utility model has the advantages that: the threaded connection mode is changed into a mode that the valve seat and the pressing cylinder are connected with the valve body through the valve cover and are abutted tightly, so that the valve cover and the valve body are separated to finish the disassembly, and the bolt connection is easy to disassemble; the sleeve is arranged above the valve core, the pressing cylinder is connected with the sleeve in a sealing and sliding mode, the sleeve is only connected between the sleeves in a sealing and sliding mode, contact between the valve core and the sleeve is effectively avoided, the service life of the valve core can be prolonged, and meanwhile the sleeve moves in the pressing cylinder to guarantee that the valve core falls and is coaxial with the valve seat, and good sealing performance is kept.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 1 of the present invention.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
example 1: referring to fig. 1, the valve comprises a valve body 3, a valve cover 2, a valve rod 1, a valve core 4 and a pressing cylinder 8, wherein the valve cover 2 is arranged above the valve body 3, a valve seat 7 is arranged in the valve body 3, the pressing cylinder 8 is arranged between the valve cover 2 and the valve seat 7, and the valve rod 1 penetrates through the valve cover 2 and is connected with the valve core 4 in the valve body 3.
The upper side of the valve core 4 is fixedly connected with a sleeve 5, the sleeve 5 is connected with the valve rod 1 through threads, and the valve rod 1 drives the valve core 4 to move up and down to complete the opening and closing of the regulating valve.
And a sealing ring is arranged between the valve seat 7 and the valve body 3, and a sealing ring is arranged between the valve cover 2 and the valve body 3, so that the sealing ring is arranged to ensure that a medium in the regulating valve cannot leak from the bottom of the valve seat 7 or from a gap between the upper valve seat 7 and the valve cover 2.
The contact part of the sleeve 5 and the pressing cylinder 8 is in sealing sliding connection, so that when the valve rod 1 moves up and down, the valve core 4 cannot be directly contacted with the pressing cylinder 8, the abrasion loss is reduced, the service life of the valve core 4 is prolonged, and meanwhile, the movement of the sleeve 5 in the pressing cylinder 8 ensures that the valve core 4 falls down and is coaxial with the valve seat 7, and a plurality of sealing rings are matched to keep good sealing performance. Pressing a section of thick bamboo 8 and disk seat 7 to realize through the valve gap 2 and valve body 3 between fixed, be equipped with sleeve pipe 5 between case 4 and valve rod 1, let sleeve pipe 5 and press sealed and sliding connection between the section of thick bamboo 8 for originally often can not pressing a section of thick bamboo 8 touching with the case 4 of pressing a section of thick bamboo 8 touching, only contact with disk seat 7, thereby delayed the life-span that case 4 used, and simultaneously, pressing a section of thick bamboo 8 and disk seat 7 to tightly being connected and also having changed and pressing a section of thick bamboo 8 or disk seat 7.
Example 2: compared with the embodiment 1, the difference is that the shape of the sealing ring between the regulating valves is different, and the sealing ring is the same.
Referring to fig. 2, the sealing ring 9 between the valve body 3 and the valve cover 2 is mostly a layer of O-shaped sealing ring 9, because the sealing ring 9 is made of a single-layer material, when the valve cover 2 and the valve body 3 are installed, the valve cover 2 and the valve body 3 are fixedly connected through a plurality of bolts, in this embodiment, the number of the bolts is 12, that is, the angle of each bolt is 30 °, when the valve cover 2 and the valve body 3 are installed, the 12 bolts cannot be installed at the same time, when one is installed, the sealing ring 9 with a projection distance close to the position of the bolt can be subjected to a larger pressure, and when the valve cover and the valve body are frequently disassembled and assembled, the sealing ring 9 is lifted upwards, and the outside of the O-shaped.
The uniform O-shaped sealing ring 9 is changed into a plurality of annular steps, three hollow cylinders are arranged and are in a step shape, the corresponding different contact surfaces of each hollow cylinder are provided, one surface of the edge is a surface stressed heavily according to stress conditions, the largest surface of each hollow cylinder is matched with the corresponding hollow cylinder, the hollow cylinders are sequentially reduced, the thickness of the sealing ring 9 at the position with high pressure is thick, the phenomenon that the sealing ring 9 rises to the position with high pressure due to nonuniform stress and the sealing performance is influenced is avoided, meanwhile, a magnet sheet is arranged at a proper position of the sealing ring 9, the valve body 3 is generally made of cast iron, WCB and the like and has certain magnetism, the sealing ring 9 placed in the valve body 3 does not need to stretch into a hand and is aligned slowly, only the sealing ring 9 is placed in a concave table of the valve body 3, and the pressure cylinder 8 is made of chrome vanadium steel and the like and has the same magnetism, the inner side of the upper side sealing ring 9 is provided with a magnetic sheet, and after the upper side sealing ring is connected with the pressing cylinder 8, the valve cover 2 falls down and is fixed.
At the in-process of installation valve body 3 and valve gap 2, because the atress is uneven, if the dismouting governing valve often, the impaired great of sealing washer 9, according to receiving the compressive strength difference, the ladder ring seal 9 of design just sets up the magnetic sheet in suitable position, and it is more convenient to place to assist sealing washer 9.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. A section of thick bamboo is pressed to governing valve convenient to change, its characterized in that: the pressure-sensitive valve comprises a valve body (3), a valve cover (2), a valve rod (1), a valve core (4) and a pressure cylinder (8), wherein the valve cover (2) is arranged above the valve body (3), a valve seat (7) is arranged in the valve body (3), the pressure cylinder (8) is arranged between the valve cover (2) and the valve seat (7), a sleeve (5) is connected to the valve core (4), and the valve rod (1) penetrates through the valve cover (2) and is connected with the sleeve (5) in the valve body (3).
2. The easy-to-replace regulator valve cartridge of claim 1, wherein: the valve cover (2) is connected with the valve body (3) through a bolt.
3. The easy-to-replace regulator valve cartridge of claim 1, wherein: a sealing ring is arranged between the valve seat (7) and the valve body (3), and a sealing ring is arranged between the valve cover (2) and the valve body (3).
4. The easy-to-replace regulator valve cartridge of claim 1, wherein: the valve rod (1) is in threaded connection with the sleeve (5).
5. The easy-to-replace regulator valve cartridge of claim 1, wherein: a corrugated sealing block (6) is arranged between the valve rod (1) and the valve cover (2).
6. The easy-to-replace regulator valve cartridge of claim 1, wherein: the valve rod (1) is connected with the sleeve (5) on the upper side of the valve core (4) in a sealing and sliding way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020620701.6U CN212251202U (en) | 2020-04-23 | 2020-04-23 | Adjusting valve pressure cylinder convenient to replace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020620701.6U CN212251202U (en) | 2020-04-23 | 2020-04-23 | Adjusting valve pressure cylinder convenient to replace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251202U true CN212251202U (en) | 2020-12-29 |
Family
ID=74002719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020620701.6U Active CN212251202U (en) | 2020-04-23 | 2020-04-23 | Adjusting valve pressure cylinder convenient to replace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251202U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883286A (en) * | 2021-12-07 | 2022-01-04 | 艾肯（江苏）工业技术有限公司 | Large-discharge pneumatic regulating valve based on accurate control of air pressure flow |
| CN115325179A (en) * | 2022-07-04 | 2022-11-11 | 浙江安构控制阀科技有限公司 | Liquid-gas separation and discharge method and regulating valve with same |
-
2020
- 2020-04-23 CN CN202020620701.6U patent/CN212251202U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883286A (en) * | 2021-12-07 | 2022-01-04 | 艾肯（江苏）工业技术有限公司 | Large-discharge pneumatic regulating valve based on accurate control of air pressure flow |
| CN115325179A (en) * | 2022-07-04 | 2022-11-11 | 浙江安构控制阀科技有限公司 | Liquid-gas separation and discharge method and regulating valve with same |
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