CN221139554U - Simplified high-pressure manhole structure - Google Patents
Simplified high-pressure manhole structure Download PDFInfo
- Publication number
- CN221139554U CN221139554U CN202322611289.8U CN202322611289U CN221139554U CN 221139554 U CN221139554 U CN 221139554U CN 202322611289 U CN202322611289 U CN 202322611289U CN 221139554 U CN221139554 U CN 221139554U
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- Prior art keywords
- top cover
- high pressure
- manhole structure
- simplified high
- manhole
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- 238000000465 moulding Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 239000002023 wood Substances 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to the field of manhole structures of pressure vessels, and discloses a simplified high-pressure manhole structure, which comprises four-way rings arranged in a manhole, and also comprises a top cover, wherein the four-way rings are pressed at the upper end of the top cover, the upper section of the outer side wall of the top cover is arranged in an outward inclined way, the middle part of the top cover is a spherical cover body which is concave and takes an inverted arch shape, and the upper end of the top cover is provided with a connecting point. The utility model can solve the problems of the prior wood sealing type structure, such as high number of parts, difficult assembly and complex operation.
Description
Technical Field
The utility model relates to the field of manhole structures of pressure vessels, in particular to a simplified high-pressure manhole structure.
Background
In petrochemical industry and metallurgy, there are many high-pressure containers, often adopting wood sealing type high-pressure manholes, which are self-tightening manholes, the higher the pressure in the container is, the more reliable the sealing is, and the sealing is often used on vertical containers. However, the number of high pressure manhole parts of the conventional wood seal structure is large, and as shown in fig. 1, the manhole parts are seen from the bottom to the top: the manhole structure is provided with a top cover 2, an upper pressing pad 5, a four-way ring 3, an upper holding ring 7, a connecting bolt 6 and the like, and the manhole structure has a plurality of installation procedures: firstly, the top cover 2 is assembled, the upper pressing pad 5 is assembled, the upper tetrad ring 3 is divided into four halves, the radial-pulling bolts, the upper holding ring 7 and the connecting bolts 6 are assembled, the top cover 2 is pulled up, the assembly is difficult, and the operation is complex. In order to preassemble the top cover 2, a machining step 4 is required in the manhole 1 to support the top cover 2, so that the machining difficulty is increased. And current top cap 2 adopts sphere and last pressure pad 5 contact and seal to this exerts horizontal force to last pressure pad 5 through the sphere, realizes the self-tightening function, but sphere structure has increased the processing degree of difficulty of top cap 2, and processing cost is high.
Disclosure of utility model
The utility model aims to provide a simplified high-pressure manhole structure so as to solve the problems of high number of parts, difficult assembly and complex operation of the high-pressure manhole structure of the existing wood sealing structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a simplify high pressure manhole structure, includes the four ring that closes of installing in the manhole, still includes the top cap, four ring pressure equipment is in the top cap upper end, and top cap lateral wall upper segment outwards inclines to set up, and the top cap middle part is concave spherical lid that is the invert, and the top cap upper end is equipped with the tie point.
Preferably, as a modification, the bottom end of the top cover is provided with a ring groove surrounding the spherical cover body.
Preferably, as a modification, the bottom of the ring groove is an arc surface.
Preferably, as a modification, the upper section of the outer side wall of the top cover is inclined outwardly by an angle of 5 °.
Preferably, as an improvement, the connection point is a threaded hole formed in the upper end of the top cover.
Preferably, as an improvement, the top surface of the top cover is a downward inclined surface inclined towards the middle part, a step plane is arranged between the inclined surface and the root of the spherical cover body, and the threaded hole is formed in the step plane.
Preferably, as a modification, the top cover is an integrally formed piece.
The principle and the advantages of the scheme are as follows: in practical application, the four-way ring adopts the structure of the prior art, and limits the top cover from the upper part. The top cover adopts the integrated structure, has integrated the effect of original last pressure pad and top cover, and the inclined plane at top end of this scheme top cover, the slope design of lateral wall upper segment play the effect of last pressure pad, and the back is born from the inside pressure of container to the arch-shaped spherical lid in middle part, and the top cover in annular outside trend upset in middle part, and the pressure upwards is followed all around outward again from the centre, transversely acts on the manhole wall at lateral wall slope position, vertically acts on four and closes the ring, ensures that the top cover seals the manhole.
Compared with the prior art, the scheme reduces the number of parts, combines the pressing pad and the top cover into one part, ensures the original sealing principle and function, and can reduce the pressing cover and the connecting bolt above during installation, and the top cover can be directly pressed and assembled, and the four rings can be assembled. The top cover is pulled up only when the top cover is detached using bolts and a simple retaining ring. The assembly is more convenient, the operation process is simpler and more convenient, and the overall economy is improved. The original upper pressing pad is a thin-wall part, the rigidity of the part is poor, the part is a main sealing piece, the rigidity and the sealing performance are not good, the original manufacturing difficulty of the part is very high, an integrated structure is adopted in the scheme, the part has the functions of the original upper pressing pad and the top cover, and the problem of the integral rigidity is solved.
Drawings
Fig. 1 is a longitudinal section of the prior art.
Fig. 2 is a longitudinal cross-sectional view of an embodiment of the present utility model.
Fig. 3 is a longitudinal sectional view of the top cover in the embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
Reference numerals in the drawings of the specification include: manhole 1, top cover 2, four-way ring 3, step 4, upper pressure pad 5, connecting bolt 6, upper holding ring 7, spherical cover 21, inclined plane 22, annular groove 23, screw hole 24, lateral wall 25.
The embodiment is basically as shown in fig. 2 and 3: a simplified high-pressure manhole structure comprises a tetrad ring 3 which is installed in a manhole 1 by bolts, wherein the bottom surface of the tetrad ring 3 is an inclined surface 22. The novel multifunctional integrated top cover further comprises a top cover 2 which is integrally formed, the top surface of the top cover 2 is an inclined surface 22 which is inclined downwards towards the middle part, the four-closed ring 3 is pressed at the upper end of the top cover 2, and the bottom surface of the four-closed ring 3 abuts against the inclined surface 22 at the top end of the top cover 2. The upper section of the outer side wall 25 of the top cover 2 is arranged in an outward inclined manner, and the inclination angle is 5 degrees. The middle part of the top cover 2 is a concave spherical cover body 21 in an inverted arch shape, a step 4 plane is arranged between the inclined plane 22 at the top end of the top cover 2 and the root of the spherical cover body 21, and at least two threaded holes 24 are symmetrically arranged on the step 4 plane and used as connecting points. The bottom end of the top cover 2 is provided with a ring groove 23 surrounding the spherical cover body 21, and the bottom of the ring groove 23 is an arc surface.
The specific implementation process is as follows: when the top cover 2 is installed, the top cover 2 is firstly put into the manhole 1 from top to bottom, the inclined outer side wall 25 of the top cover 2 gradually abuts against the inner wall of the manhole 1, then the four-closed ring 3 is installed, the four-closed ring 3 is fixed through bolts, and the top cover 2 is pressed downwards by the four-closed ring 3. In the use, the pressure in the container acts on the spherical cover body 21 upwards, the middle of the spherical cover body 21 is stressed upwards, the spherical cover body 21 has the trend of outwards leveling and dispersing to the outside under the action of a spherical structure, the top cover 2 outside the ring groove 23 has the trend of inwards overturning, the top cover 2 is stressed on the part of the circumferential uniform action to the inclination of the outer side wall 25, transversely acts on the wall of the manhole 1 and vertically acts on the tetrad ring 3, so that the connection between the top cover 2 and the wall of the manhole 1 is firmer, and the self-tightening is realized. When the pull ring is detached, the pull ring is erected at the top of the manhole 1, the top cover 2 is hung through the threaded hole 24 on the bolt connection top cover 2, then the four-way ring 3 is detached, and then the top cover 2 is detached upwards. In this technical scheme, the function of original upper pressure pad 5 and top cap 2 has been integrated through modified top cap 2 to can omit the use to traction ring and bolt in the installation, omit the pre-placement to top cap 2 in the installation, consequently need not process step 4 structure in manhole 1, make overall structure spare part quantity compare prior art less, overall structure is more simplified, the installation operation is more convenient, and the effective reduction of overall cost has been reserved again simultaneously to manhole 1's reliable and stable closure.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The utility model provides a simplify high pressure manhole structure, includes four closes the ring of installing in the manhole, its characterized in that: the novel plastic bottle cap further comprises a top cap, the four-closed ring is pressed at the upper end of the top cap, the upper section of the outer side wall of the top cap is arranged in an outward inclined mode, the middle of the top cap is a concave spherical cap body in an inverted arch shape, and the upper end of the top cap is provided with a connecting point.
2. A simplified high pressure manhole structure according to claim 1, wherein: the bottom of the top cover is provided with a ring groove encircling the spherical cover body.
3. A simplified high pressure manhole structure according to claim 2, wherein: the bottom of the ring groove is an arc surface.
4. A simplified high pressure manhole structure according to claim 1, wherein: the upper section of the outer side wall of the top cover is inclined outwards by an angle of 5 degrees.
5. A simplified high pressure manhole structure according to claim 1, wherein: the connecting point is a threaded hole formed in the upper end of the top cover.
6. A simplified high pressure manhole structure according to claim 5, wherein: the top surface of the top cover is a slope which inclines downwards towards the middle part, a step plane is arranged between the slope and the root of the spherical cover body, and the threaded hole is formed in the step plane.
7. A simplified high pressure manhole structure according to claim 1, wherein: the top cover is an integral molding piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322611289.8U CN221139554U (en) | 2023-09-25 | 2023-09-25 | Simplified high-pressure manhole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322611289.8U CN221139554U (en) | 2023-09-25 | 2023-09-25 | Simplified high-pressure manhole structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221139554U true CN221139554U (en) | 2024-06-14 |
Family
ID=91424039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322611289.8U Active CN221139554U (en) | 2023-09-25 | 2023-09-25 | Simplified high-pressure manhole structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221139554U (en) |
-
2023
- 2023-09-25 CN CN202322611289.8U patent/CN221139554U/en active Active
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