CN208715998U - A kind of quick opening manhole's structure - Google Patents
A kind of quick opening manhole's structure Download PDFInfo
- Publication number
- CN208715998U CN208715998U CN201821489052.XU CN201821489052U CN208715998U CN 208715998 U CN208715998 U CN 208715998U CN 201821489052 U CN201821489052 U CN 201821489052U CN 208715998 U CN208715998 U CN 208715998U
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- Prior art keywords
- manhole
- flange
- stud
- positioning ring
- quick opening
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Abstract
The utility model relates to valve pipe fitting technical fields, especially a kind of quick opening manhole's structure, including manhole flange and blind flange, adapter tube is welded on the inner wall of manhole flange, the side of the manhole flange is hinged by pin shaft and blind flange, the side of the manhole flange and blind flange is corresponding to offer the U-type groove of several openings outwardly, stud is vertically installed in the U-type groove, the stud both ends pass through nut check, the stud bottom offers aperture, all studs are cascaded by the aperture that positioning ring sequentially passes through all stud bottoms, the positioning ring is fixed on manhole flange bottom by locating piece, the utility model can solve the problem of home pin shaft in quick opening manhole in the prior art is easily bent deformation and pressure vessel is caused to have a risk of leakage.
Description
Technical field
The utility model relates to valve pipe fitting technical field, specific field is a kind of quick opening manhole's structure.
Background technique
Quick opening manhole is the fast open type manhole structure that pressure vessel industries use, and has easy to open, highly-safe and shape
The features such as both artistic and practical, quick opening manhole is typically mounted at storage tank, below kettle or top, and personnel is facilitated to pass in and out and observation container
It is interior, it can be used in non-pressure vessel and pressure vessel.
Existing quick opening manhole's flange, blind flange are generally used U-bolt hole pattern, and direction is external, and stud is facilitated to turn over
Turn installation, wherein stud all uses eyelet bolt at present, and pin shaft without a head passes through the hole of bolt bore and fixed block, as support,
In manhole installation, play the role of fixing link bolt.Since pin diameter without a head is smaller than eyelet bolt nominal dimension, with
For GB798 standard, the mating pin diameter of M24 eyelet bolt only has φ 18, and in bolt fastening, pin shaft without a head is sheared
Stress is greater than eyelet bolt threaded portion, and stud pretensioning operation is improper to make pin shaft bent in tension without a head deform, and causes flange close
Discontinuity at envelope, there are risk of leakage, there is security risk.
Utility model content
The purpose of this utility model is to provide a kind of quick opening manhole's structures, to solve room in quick opening manhole in the prior art
The problem of head pin shaft is easily bent deformation and pressure vessel is caused to have a risk of leakage.
To achieve the above object, the utility model provides the following technical solutions: a kind of quick opening manhole's structure, including manhole method
Blue and blind flange, adapter tube are welded on the inner wall of manhole flange, and the side of the manhole flange is hinged by pin shaft and blind flange,
The side of the manhole flange and blind flange is corresponding to offer the U-type groove of several openings outwardly, and stud is vertically installed on described U-shaped
In slot, the stud both ends offer aperture by nut check, the stud bottom, and positioning ring sequentially passes through all stud bottoms
All studs are cascaded by the aperture in portion, and the positioning ring is fixed on manhole flange bottom by locating piece.
Preferably, the manhole flange bottom symmetrical is welded with locating piece, and location hole is offered on the locating piece, described
Location hole and the aperture of stud bottom are on the same periphery, and the positioning ring sequentially passes through shape after location hole and aperture
At an annulus.
Preferably, the positioning ring is a split ring, and the both ends of the positioning ring are connected by connector to be closed, described
The both ends of connector offer spliced eye, and the bottom of the connector offers threaded hole, and the both ends of the positioning ring are inserted respectively
Enter spliced eye, bolt is screwed into connector with threaded hole cooperation and compresses positioning ring.
Preferably, the blind flange is equipped with handle.
Preferably, gasket is equipped between the manhole flange and blind flange.
Compared with prior art, the utility model has the beneficial effects that by using the mode of mating two nuts of stud
Manhole flange and blind flange are tightly connected, stud both ends uniform force, stud is unlikely to deform bending, eliminates the safety of leakage
Hidden danger；All studs are installed together by positioning ring, when upper end nut unclamps, stud is not fallen out, and dismounting is all very square
Just.
Detailed description of the invention
Fig. 1 is the structure sectional view of the utility model；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the structural schematic diagram at another visual angle of the utility model；
Fig. 4 is the structural schematic diagram of connector in the utility model.
In figure: 1. blind flanges, 11. handles, 2. manhole flanges, 3. studs, 31. apertures, 4. positioning rings, 5. locating pieces, 51.
Location hole, 6. adapter tubes, 7. connectors, 71. bolts, 72. spliced eyes, 8. gaskets, 9.U type groove.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of quick opening manhole's structure, including manhole flange 2
With blind flange 1, adapter tube 6 is welded on the inner wall of manhole flange 2, and the side of manhole flange 2 is hinged by pin shaft and blind flange 1,
The side of manhole flange 2 and blind flange 1 is corresponding to offer the U-type groove 9 of several openings outwardly, and stud 3 is vertically installed on U-type groove 9
Interior, 3 both ends of stud offer aperture 31 by nut check, 3 bottom of stud, and positioning ring 4 sequentially passes through all 3 bottoms of stud
All studs 3 are cascaded by aperture 31, and positioning ring 4 is fixed on 2 bottom of manhole flange, 3 fastening part of stud by locating piece 5
It is divided to by the way of 3 mating two nuts of full thread stud, keeps 3 bearing up-down force of stud uniform, be unlikely to deform bending；Stud 3 pushes up
After the nut dismounting in portion, stud 3 is downwardly turned over, i.e., openable blind flange 1, at this time since the connection of positioning ring 4 is arranged at 3 bottom of stud,
Stud 3 can't be fallen, and be installed very convenient.
Preferably, 2 bottom symmetrical of manhole flange is welded with locating piece 5, and location hole 51, location hole are offered on locating piece 5
51 are on the same periphery with the aperture 31 of 3 bottom of stud, and positioning ring 4 sequentially passes through shape after location hole 51 and aperture 31
It is evenly distributed among stud 3 at an annulus in general, the quantity of locating piece 5 is 2-4, in the present embodiment, positioning
Block 5 is two, is symmetric, and further, location hole 51 can be elongate holes, to cooperate the stud 3 of different height to make
With.
Preferably, positioning ring 4 is a split ring, and the both ends of positioning ring 4 are closed by the connection of connector 7, connector 7
Both ends offer spliced eye 72, and the bottom of connector 7 offers threaded hole, and spliced eye 72, spiral shell are inserted into the both ends of positioning ring 4 respectively
Bolt 71 is screwed into connector 7 with threaded hole cooperation and compresses positioning ring 4, which can use 2-3mm, notch ruler
Very little generally in 2-3mm, positioning ring 4 can be made of welding wire, and the positioning ring 4 of welding wire production is more soft, indentation, there side
Just it opens.
Further, blind flange 1 is equipped with handle 11, and handle 11 is weldingly fixed on blind flange 1, facilitates blind flange 1
It opens and closes.
Further, gasket 8 is equipped between manhole flange 2 and blind flange 1, blind flange 1 pushes down gasket 8 when covering, into one
Step ensure that the good leakproofness of container.
Installation process: the side of manhole flange 2 is hinged by pin shaft and blind flange 1, and gasket 8 is placed on manhole
The sealing surface position of flange 2, overturns blind flange 1, and blind flange 1 covers gasket 8, then installs stud 3, spiral shell in each U-type groove 9
Aperture 31 on column 3 is placed on 2 side of manhole flange, tightens nut by chi sequence, and pays attention to controlling 31 direction of aperture in circle
It is all tangential.After tightening in place, positioning ring 4 is sequentially passed through into aperture 31 and location hole 51, and 4 two ends insertions of positioning ring are connected
It connects in the spliced eye 72 of block, is finally fit into bolt 71 in the threaded hole of connector 7, compress positioning ring 4, guarantee not loose
It is slack.
Opening procedure: the nut at 1 end of blind flange is unscrewed, until stud 3 can be rotated with 9 opening of U-type groove,
Pull handle 11 opening blind flanges 1, and blind flange 1 can be overturn as axis using pin shaft and be opened, and such quick opening manhole turns on, can carry out
The operation such as 8, gasket replacements.
Further, when needing to close, gasket 8 is placed, covers blind flange 1, after in place, by all studs 3 bottom of from
Portion flips up, and is mounted in U-type groove 9, can be complete by 5 nut of chi sequence tightening piece by the nut tightening at 1 end of blind flange
At installation.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of quick opening manhole's structure, including manhole flange (2) and blind flange (1), adapter tube (6) is welded in manhole flange (2)
On inner wall, the side of the manhole flange (2) is hinged by pin shaft and blind flange (1), it is characterised in that: the manhole flange
(2) corresponding with the side of blind flange (1) to offer the U-type groove (9) of several openings outwardly, stud (3) is vertically installed on described U-shaped
In slot (9), stud (3) both ends are offered aperture (31) by nut check, stud (3) bottom, positioning ring (4) according to
All studs (3) are cascaded by the secondary aperture (31) across all studs (3) bottom, and the positioning ring (4) passes through positioning
Block (5) is fixed on manhole flange (2) bottom.
2. a kind of quick opening manhole's structure according to claim 1, it is characterised in that: manhole flange (2) bottom symmetrical
It is welded with locating piece (5), is offered location hole (51) on the locating piece (5), the location hole (51) and stud (3) bottom
Aperture (31) is on the same periphery, and the positioning ring (4) sequentially passes through location hole (51) and aperture (31) is formed afterwards
One annulus.
3. a kind of quick opening manhole's structure according to claim 2, it is characterised in that: the positioning ring (4) is an opening
Ring, by connector (7) connection closure, the both ends of the connector (7) offer spliced eye at the both ends of the positioning ring (4)
(72), the bottom of the connector (7) offers threaded hole, and spliced eye (72), spiral shell are inserted into the both ends of the positioning ring (4) respectively
Bolt (71) and threaded hole cooperation are screwed into connector (7) and compress positioning ring (4).
4. a kind of quick opening manhole's structure according to claim 1, it is characterised in that: the blind flange (1) is equipped with handle
(11)。
5. a kind of quick opening manhole's structure according to claim 1, it is characterised in that: the manhole flange (2) and blind flange
(1) gasket (8) are equipped between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821489052.XU CN208715998U (en) | 2018-09-12 | 2018-09-12 | A kind of quick opening manhole's structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821489052.XU CN208715998U (en) | 2018-09-12 | 2018-09-12 | A kind of quick opening manhole's structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208715998U true CN208715998U (en) | 2019-04-09 |
Family
ID=65981754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821489052.XU Active CN208715998U (en) | 2018-09-12 | 2018-09-12 | A kind of quick opening manhole's structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208715998U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146503A (en) * | 2020-10-10 | 2020-12-29 | 上海电气电站设备有限公司 | Be suitable for solar photothermal power plant heat exchanger's welded gasket manhole structure |
| CN112249521A (en) * | 2020-11-12 | 2021-01-22 | 衡阳市凯信化工试剂股份有限公司 | A strorage device for chemical reagent production |
-
2018
- 2018-09-12 CN CN201821489052.XU patent/CN208715998U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146503A (en) * | 2020-10-10 | 2020-12-29 | 上海电气电站设备有限公司 | Be suitable for solar photothermal power plant heat exchanger's welded gasket manhole structure |
| CN112249521A (en) * | 2020-11-12 | 2021-01-22 | 衡阳市凯信化工试剂股份有限公司 | A strorage device for chemical reagent production |
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