CN213018051U - Bottom mechanism for high-pressure valve - Google Patents
Bottom mechanism for high-pressure valve Download PDFInfo
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- CN213018051U CN213018051U CN202021495081.4U CN202021495081U CN213018051U CN 213018051 U CN213018051 U CN 213018051U CN 202021495081 U CN202021495081 U CN 202021495081U CN 213018051 U CN213018051 U CN 213018051U
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Abstract
The utility model provides a bottom mechanism for high-pressure valve belongs to high-pressure valve technical field, including valve component and seal assembly, seal assembly installs in the inside of valve component, and the valve rod link up among the valve body, snap ring fixed mounting is in the afterbody of valve rod, and the axle sleeve suit is on the body of rod surface of valve rod, and the liner is loaded among the valve body, and the bottom is connected in the bottom of valve body, and the gasket ring is around setting up the lid inner edge in the bottom, and the bottom screw sets up in the bottom edge of valve body, and the gland screw sets up in the interior intracavity edge of valve body. Through setting up packing and gland among the device, because valve rod department is provided with seal assembly and carries out pressure seal, packing and gland's the fixed cavity internal seal that makes the valve body and play fixed effect to the valve rod that is connected for pressure in the valve body intracavity can not act on the bottom cap, thereby has safe and reliable's sealed effect, is applicable to the production and the use that are used for high pressure valve's bottom mechanism.
Description
Technical Field
The utility model relates to a high-pressure valve technical field specifically is a valve bottom sealing device.
Background
The valve rod packing sealing performance is one of the main indexes of the performance of the whole valve, whether the valve leaks outwards or not is directly determined by the sealing performance, proper packing materials are selected according to different working conditions, the depth of a packing box is reasonably designed, and a good valve rod sealing effect can be achieved by adopting a reasonable packing sealing structure and a reasonable installation mode;
the bottom structure of the common angular travel valve is of a non-packing structure, the bottom cover is of a sealing structure with a gasket, the mechanism is easy to cause poor sealing effect in a high-pressure occasion, the ejecting force of the pressure in a cavity on the valve rod is too large, the valve rod is sealed by conventional primary packing in a toxic occasion and a place where leakage is not allowed, the packing is slightly leaked in the packing place for a long time in the service time, packing needs to be tightly packed again, the valve is not allowed in the toxic occasion, therefore, the valve device needs to be upgraded and reformed on the basis of the existing high-pressure valve device, the existing problems and the defects are overcome, and the bottom mechanism for the high-pressure valve is provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at solving this mechanism of current high pressure occasion and easily causing sealed effect not good, intracavity pressure to the too big etc. of the ejection power of valve rod, in poisonous occasion and the occasion that is not allowed to leak a bit, with conventional packing seal, have the technical problem of minimum seepage in packing department for a long time a little in the live time, provide a bottom mechanism for high pressure valve.
In order to achieve the above object, the utility model provides a following technical scheme: a bottom mechanism for a high-pressure valve comprises a valve component and a sealing component, wherein the sealing component is arranged in the valve component;
the valve component comprises a valve body, a clamping ring, a gasket, a valve rod, a shaft sleeve, a gasket, a bottom cover screw hole and a gland screw hole, the valve rod penetrates through the valve body, the clamping ring is fixedly arranged at the tail part of the valve rod, the shaft sleeve is sleeved on the surface of a rod body of the valve rod, the gasket is filled in the valve body, the bottom cover is connected to the bottom of the valve body, the gasket is arranged at the inner edge of a cover body of the bottom cover in a surrounding mode, the bottom cover screw hole is formed in;
the sealing assembly comprises a sealing ring, a second sealing ring, a bolt, a packing, a third sealing ring, a packing gland and a sealing bolt, the sealing ring and the second sealing ring are sleeved on the surface of the rod body of the valve rod, the third sealing ring is embedded in the inner cavity of the valve body, the packing is filled at the bottom of the middle shaft sleeve of the valve body cavity, the packing gland is abutted against the packing, the bolt is communicated with the packing gland through threads and connected into a gland screw hole, and the sealing bolt is communicated with the bottom cover through threads and connected into a bottom cover screw hole.
As a further aspect of the present invention: the valve body and the valve rod part casting are free from the defects of slag inclusion, air holes, cold shut and cracks.
As a further aspect of the present invention: the inside of valve body link up and set up the cavity and have valve rod through connection wherein, and the upper end of valve body cavity all is provided with seal assembly with the lower extreme.
As a further aspect of the present invention: the upper end and the lower end of the cavity of the valve body are provided with openings, the openings are provided with a plurality of layers of platform edges, and the gland screw holes are formed in the innermost platform edges.
As a further aspect of the present invention: the inner side of the clamping ring is abutted against the edge of the opening at the outer side of the valve body, and a gasket is arranged at the joint of the bottom cover and the valve body for sealing.
As a further aspect of the present invention: the sealing bolt and the bottom cover screw hole are matched with each other.
As a further aspect of the present invention: the liner is used for clamping and fixing the bottom of the shaft sleeve.
The utility model has the advantages that:
1. the utility model discloses in set up the gland screw, both ends all are provided with the opening part about the cavity of valve body, and the opening part is provided with a plurality of layers of platform edge, and the gland screw sets up in the most inboard platform edge for can fix through gland when carrying out packing of packing among the inside cavity of valve body, strengthen inside sealed effect.
2. This kind of a bottom mechanism for high pressure valve's advantage lies in being provided with the filler, because valve rod department is provided with seal assembly and carries out pressure seal, and the filler is fixed with gland's being connected and is made the cavity internal seal of valve body and play fixed effect to the valve rod for pressure in the valve body intracavity can not act on the bottom cover, thereby has safe and reliable's sealed effect.
3. This kind of a bottom mechanism for high pressure valve is provided with sealing washer, second sealing washer and third sealing washer, and the three mutual combinations between sealing washer and the filler form powerful seal between valve body and valve rod, have improved sealed specific pressure, can increase sealing force, play good sealed effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is the schematic diagram of the internal structure of the valve body of the present invention.
Fig. 3 is a schematic view of the internal structure of the valve body of the present invention.
In FIGS. 1-3: 1-valve body, 2-sealing ring, 3-second sealing ring, 4-bolt, 5-snap ring, 6-gasket, 7-sealing bolt, 8-valve rod, 9-shaft sleeve, 10-gasket, 11-packing, 12-third sealing ring, 13-packing gland, 14-bottom cover, 15-bottom cover screw hole and 16-gland screw hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a bottom mechanism for a high pressure valve includes a valve component and a sealing component, wherein the sealing component is installed inside the valve component;
the valve component comprises a valve body 1, a clamping ring 5, a gasket 6, a valve rod 8, a shaft sleeve 9, a gasket 10, a bottom cover 14, a bottom cover screw hole 15 and a gland screw hole 16, wherein the valve rod 8 penetrates through the valve body 1, the clamping ring 5 is fixedly arranged at the tail part of the valve rod 8, the shaft sleeve 9 is sleeved on the rod body surface of the valve rod 8, the gasket 10 is filled in the valve body 1, the bottom cover 14 is connected to the bottom of the valve body 1, the gasket 6 is arranged at the inner edge of a cover body of the bottom cover 14 in a surrounding mode, the bottom cover screw hole 15 is arranged at the edge;
the sealing assembly comprises a sealing ring 2, a second sealing ring 3, a bolt 4, a packing 11, a third sealing ring 12, a packing gland 13 and a sealing bolt 7, the sealing ring 2 and the second sealing ring 3 are sleeved on the surface of a rod body of the valve rod 8, the third sealing ring 12 is embedded in a cavity in the valve body 1, the packing 11 is filled at the bottom of a shaft sleeve 9 in the cavity in the valve body 1, the packing gland 13 abuts against the packing 11, the bolt 4 penetrates through the packing gland 13 and is in threaded connection with a gland screw hole 16, and the sealing bolt 7 penetrates through a bottom cover 14 and is in threaded connection with a bottom cover screw hole 15.
Wherein, valve body 1 and 8 part castings of valve rod should not have the defect of slag inclusion, gas pocket, cold shut, crackle, and accurate casting just can make high-pressure valve whole carry out safe handling, avoids taking place danger in the use.
Wherein, the inside of valve body 1 link up and set up the cavity and have 8 through connections of valve rod wherein, and the upper end and the lower extreme of the 1 cavity of valve body all are provided with seal assembly for can avoid inside medium to reveal from top or bottom in the valve body 1 use.
Wherein, both ends all are provided with the opening part about the cavity of valve body 1, and the opening part is provided with a plurality of layers of platform edge, and gland screw 16 sets up in the most inboard platform edge for can fix through gland 13 when carrying out packing of packing 11 among the inside cavity of valve body 1, strengthen inside sealed effect.
Wherein, the inboard butt of snap ring 5 is at the outside opening part edge of valve body 1, and the junction of bottom 14 and valve body 1 has gasket 6 to seal, and snap ring 5 back does not butt bottom 14, nevertheless because valve rod 8 department is provided with seal assembly and carries out pressure seal for pressure in valve body 1 intracavity can not be used in bottom 14, thereby has safe and reliable's sealed effect.
Wherein, the sealing bolt 7 and the bottom cover screw hole 15 are matched with each other.
Wherein, pad 10 carries out the joint to the bottom of axle sleeve 9 fixedly, and axle sleeve 9 is fixed to 10 joints of pad for the axle sleeve is difficult to take place the displacement, and then makes valve rod 8 more stable effective in the inside use of valve body 1.
The working principle is as follows: firstly, a filling space is formed between a valve rod 8 and a valve body 1, a shaft sleeve 9 is sleeved outside the valve rod 8, a gasket 10 is placed in the filling space inside the valve body 1, so that the valve rod 8 rotates inside the valve body 1 and the medium in the cavity of the valve body 1 is prevented from leaking downwards along the valve rod 8, a sealing ring 2 and a second sealing ring 3 are sleeved at the bottom of the surface of a rod body of the valve rod 8, a third sealing ring 12 is embedded and installed at the inner wall of the inner space of the valve body 1, so that the sealing rings at three positions can form strong sealing below the valve body 1, the specific sealing pressure is improved, a packing 11 is fixed among the sealing ring 2, the second sealing ring 3 and the third sealing ring 12 under the limiting and blocking action of a packing gland 13, the packing gland 13 is fixedly nailed on the inner wall inside the valve body 1 through a gland screw hole 16 by using a bolt 4, and the sealing ring 2, the second, can increase sealing power, play good sealed effect, and run through in the bottom screw 15 of bottom 14 department and be provided with seal bolt 7 and go on with valve body 1 inner space around being connected fixedly, make bottom 14 can install the bottom of being fixed in valve body 1, snap ring 5 installs in the body of rod bottom of valve rod 8 and the inside packing space bottom of packing into valve rod 8, make and effectively seal valve rod 8 through seal assembly in high-pressure valve's the use, the pressure of 1 intracavity of valve body can not be used in bottom 14, thereby there is safe and reliable's sealed effect.
Claims (7)
1. A bottom mechanism for a high-pressure valve comprises a valve component and a sealing component, wherein the sealing component is arranged in the valve component;
the method is characterized in that: the valve component comprises a valve body (1), a clamping ring (5), a gasket (6), a valve rod (8), a shaft sleeve (9), a gasket (10), a bottom cover (14), a bottom cover screw hole (15) and a gland screw hole (16), the valve rod (8) penetrates through the valve body (1), the clamping ring (5) is fixedly installed at the tail of the valve rod (8), the shaft sleeve (9) is sleeved on the surface of a rod body of the valve rod (8), the gasket (10) is filled in the valve body (1), the bottom cover (14) is connected to the bottom of the valve body (1), the gasket (6) is arranged on the inner edge of a cover body of the bottom cover (14) in a surrounding mode, the bottom cover screw hole (15) is arranged at the edge of the bottom of the valve body (1), and;
the sealing assembly comprises a sealing ring (2), a second sealing ring (3), a bolt (4), a packing (11), a third sealing ring (12), a packing gland (13) and a sealing bolt (7), the sealing ring (2) and the second sealing ring (3) are sleeved on the surface of a rod body of a valve rod (8), the third sealing ring (12) is embedded in an inner cavity of a valve body (1), the packing (11) is filled at the bottom of a shaft sleeve (9) in the cavity of the valve body (1), the packing gland (13) is abutted to the packing (11), the bolt (4) penetrates through the packing gland (13) and is in threaded connection with a gland screw hole (16), and the sealing bolt (7) penetrates through a bottom cover (14) and is in threaded connection with a bottom cover screw hole (15).
2. The bottom mechanism for a high pressure valve as claimed in claim 1, wherein: the valve body (1) and the valve rod (8) part casting are free from the defects of slag inclusion, air holes, cold shut and cracks.
3. The bottom mechanism for a high pressure valve as claimed in claim 1, wherein: the inside of valve body (1) link up and set up the cavity and have valve rod (8) through connection wherein, and the upper end and the lower extreme of valve body (1) cavity all are provided with seal assembly.
4. The bottom mechanism for a high pressure valve as claimed in claim 1, wherein: the upper end and the lower end of the cavity of the valve body (1) are provided with openings, the openings are provided with a plurality of layers of platform edges, and the gland screw holes (16) are formed in the innermost platform edges.
5. The bottom mechanism for a high pressure valve as claimed in claim 1, wherein: the inner side of the clamping ring (5) is abutted against the edge of an opening at the outer side of the valve body (1), and a gasket (6) is arranged at the joint of the bottom cover (14) and the valve body (1) for sealing.
6. The bottom mechanism for a high pressure valve as claimed in claim 1, wherein: the sealing bolt (7) and the bottom cover screw hole (15) are matched with each other.
7. The bottom mechanism for a high pressure valve as claimed in claim 1, wherein: the gasket (10) is used for clamping and fixing the bottom of the shaft sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021495081.4U CN213018051U (en) | 2020-07-23 | 2020-07-23 | Bottom mechanism for high-pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021495081.4U CN213018051U (en) | 2020-07-23 | 2020-07-23 | Bottom mechanism for high-pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213018051U true CN213018051U (en) | 2021-04-20 |
Family
ID=75518221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021495081.4U Active CN213018051U (en) | 2020-07-23 | 2020-07-23 | Bottom mechanism for high-pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213018051U (en) |
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2020
- 2020-07-23 CN CN202021495081.4U patent/CN213018051U/en active Active
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