CN215437943U - Quick-opening manhole - Google Patents
Quick-opening manhole Download PDFInfo
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- CN215437943U CN215437943U CN202120479238.2U CN202120479238U CN215437943U CN 215437943 U CN215437943 U CN 215437943U CN 202120479238 U CN202120479238 U CN 202120479238U CN 215437943 U CN215437943 U CN 215437943U
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- manhole
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- flange
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Abstract
The utility model discloses a quick-opening manhole, comprising: the connecting pipe is communicated with the interior of the equipment and comprises a pipe body and a manhole flange arranged at the opening of the pipe body, wherein one side of the manhole flange is provided with a first connecting part, and the pipe body is provided with a supporting part; the flange cover can be oppositely combined and connected with the manhole flange in a sealing mode, one side of the flange cover is provided with a second connecting part, and the first connecting part is rotatably connected with the second connecting part through a connecting unit; a hydraulic connection comprising: the first fixed end is arranged on the supporting part; the second fixed end is arranged on the second connecting part; and the two ends of the hydraulic rod can be movably connected with the first fixed end and the second fixed end, and the extension or the shortening of the hydraulic rod can be controlled through a hydraulic control device, so that the flange cover is driven to rotate around the connecting unit, and the quick-opening manhole is closed or opened.
Description
Technical Field
The utility model relates to the technical field of valve pipe fittings, in particular to a quick-opening manhole.
Background
The manhole is a safety emergency ventilating device arranged on the top of the storage tank, and is usually matched with a fire preventer and a mechanical breather valve for use, so that the accident caused by the damage of the storage tank due to the sharp overpressure or vacuum in the tank caused by accident can be avoided, the manhole also has the function of safe fire resistance, and is a safety device for protecting the storage tank, and the manhole is particularly suitable for vault normal-pressure tanks which are capped by nitrogen for storing materials. The device has the advantages of constant pressure discharge, constant pressure suction, flexible opening and closing, safe fire resistance, compact structure, good sealing performance, safety, reliability and the like. The quick-opening manhole is a quick-opening manhole structure used in the pressure vessel industry, has the characteristics of convenience in opening, high safety, attractive and practical appearance and the like, is generally installed below or at the top of a storage tank or a kettle, is convenient for personnel to go in and out of and observe a vessel, and can be used in a normal pressure vessel and a pressure vessel. The manholes of the reaction kettle in the prior art are generally connected by flanges, and the joints of the flanges are fixed by a plurality of bolts. Although the manhole is good in sealing effect, the manhole is time-consuming and labor-consuming to disassemble and assemble, and the manhole is low in working efficiency due to the fact that equipment for inspecting the inside of the manhole needs to be opened frequently. In addition, in the prior art, a manhole cover of a manhole is hinged with a short cylinder, and the hinged structure cannot be fixed, so that the manhole cover is turned up and can directly collide with a reaction kettle carelessly slightly during opening or closing operation, and equipment damage is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, the present invention provides a quick-opening manhole, including: the connecting pipe is communicated with the interior of the equipment and comprises a pipe body and a manhole flange arranged at the opening of the pipe body, wherein one side of the manhole flange is provided with a first connecting part, and the pipe body is provided with a supporting part; the manhole flange is provided with a first connecting part and a second connecting part, and the first connecting part is rotatably connected with the second connecting part through a connecting unit; a hydraulic connection comprising: the first fixed end is arranged on the supporting part; the second fixed end is arranged on the second connecting part; and the two ends of the hydraulic rod can be movably connected with the first fixed end and the second fixed end, and the hydraulic rod can be controlled to extend or shorten through a hydraulic control device so as to drive the flange cover to rotate around the connecting unit to realize the closing or opening of the quick-opening manhole.
In some embodiments, a plurality of first through grooves are formed in the periphery of the manhole flange, a rotating portion is arranged below the first through grooves and connected with a threaded rod, fastening bolts are arranged above the threaded rod, a plurality of second through grooves corresponding to the first through grooves are formed in the periphery of the flange cover, and the threaded rod can rotate into the first through grooves and the second through grooves through the rotating portion and is fastened and combined with the manhole flange through the fastening bolts.
In some embodiments, the first fixing end and the second fixing end are U-shaped seats.
In some embodiments, the connection unit is a shaft.
In some embodiments, the rotating portion includes a U-shaped seat, a pin, and a connecting block, the U-shaped seat is movably connected to the connecting block through the pin, and the connecting block is fixedly connected to the threaded rod.
In some embodiments, the fastening bolt is a claw bolt.
In some embodiments, a gasket is provided below the flange cover.
In some embodiments, the opening of the pipe body is provided with a screen for preventing the material inside the device from overflowing.
In some embodiments, the hydraulic control device is electrically controlled.
In some embodiments, the number of first and second through slots is between 6 and 10.
The opening and closing of the flange cover are controlled by the extension or shortening of the stroke end of the hydraulic rod, the extension/shortening length and speed of the stroke end of the hydraulic rod are easy to control, the opening degree and the opening or closing speed of the flange cover connected with the hydraulic rod can be accurately controlled, the opening or closing operation of the flange cover is completed in a time-saving and labor-saving manner, and the problem that equipment is damaged due to the fact that the flange cover directly collides with a reaction kettle without paying attention when the flange cover is opened or closed is solved.
Drawings
FIG. 1 is a front view of a quick-open manhole in one embodiment of the present invention;
FIG. 2 is a top view of a quick open manhole in one embodiment of the present invention;
figure 3 is a cross-sectional view of a quick-opening manhole in an embodiment of the present invention.
Symbolic illustration in the drawings:
1, equipment;
2, a pipe body;
3, a manhole flange;
4, a flange cover;
5 a second connecting part;
6 a connecting unit;
7 a first connection portion;
8 a support part;
9 a first fixed end;
10 hydraulic rods;
11 a second fixed end;
12 a second through slot;
13 a first through slot;
14 a rotating part;
15 connecting blocks;
16 a threaded rod;
17 fastening a bolt;
18 sealing rings;
19 mesh.
Detailed Description
The technical features of the present invention are further described by the following embodiments in conjunction with the accompanying drawings:
the embodiment provides a quick-opening manhole, as shown in fig. 1 to 3, which is arranged on a device 1, and includes a connecting pipe, a flange cover 4 and a hydraulic connection portion, wherein the connecting pipe is communicated with the inside of the device 1, the connecting pipe includes a pipe body 2 and a manhole flange 3 arranged at an opening of the pipe body 2, one side of the manhole flange 3 is provided with a first connection portion 7, and the pipe body 2 is provided with a support portion 8; the flange cover 4 and the manhole flange 3 can be oppositely combined, connected and sealed, one side of the flange cover 4 is provided with a second connecting part 5, and the first connecting part 7 is rotatably connected with the second connecting part 5 through a connecting unit 6; a hydraulic connection comprising: locate first stiff end 9 on the supporting part 8, locate second stiff end 11 on the second connecting portion to and hydraulic stem 10, wherein the both ends of hydraulic stem 10 can be connected with first stiff end 9 and second stiff end 11 with moving about, can control the extension or the shortening of hydraulic stem 10 through hydraulic control device (not shown), and then drive flange cover 4 and rotate around linkage unit 6, realize closing or opening of quick-open manhole.
In this embodiment, the apparatus 1 is a reaction kettle, the second connecting portion 5 is a rectangular connecting plate, the connecting unit 6 is a shaft rod penetrating through the middle of the cross section of the connecting plate, the first connecting portions 7 are two bent connecting pieces with through holes, and two ends of the shaft rod are disposed in the through holes, so that the flange cover 4 can rotate around the shaft rod.
In this embodiment, the first fixed end 9 and the second fixed end 11 of the hydraulic connecting portion are U-shaped seats, each of the U-shaped seats has a pin, the two ends of the hydraulic rod 10 are connected to the pins, and the first fixed end 9 and the second fixed end 11 are movably connected through the rotation of the pins.
In this embodiment, the stroke end of hydraulic stem 10 passes through second stiff end 11 and is connected with flange cover 4, and the other end of hydraulic stem 10 passes through first stiff end 9 and is connected with supporting part 8, and under the state that the quick-open manhole was closed, on manhole flange 3 was located to the lid of flange cover 4, the stroke end of control hydraulic stem 10 shortened, and second stiff end 11 drives flange cover 4 and centers on the hookup unit 6 (axostylus axostyle) the upward rotation on the second connecting portion 5, and then realizes opening of quick-open manhole. When the quick-opening manhole needs to be closed, the stroke end of the control hydraulic rod 10 extends to the second fixed end 11 to drive the flange cover 4 to rotate downwards around the connecting unit 6 (shaft lever) on the second connecting part 5, and then the quick-opening manhole is closed.
The opening and closing of the flange cover 4 are controlled by the extension or shortening of the stroke end of the hydraulic rod, the extension/shortening length and speed of the stroke end of the hydraulic rod are easy to control, the opening degree and the opening or closing speed of the flange cover 4 connected with the hydraulic rod can be accurately controlled, the opening or closing operation of the flange cover 4 is completed in a time-saving and labor-saving manner, and meanwhile, the problem that equipment is damaged due to the fact that the flange cover 4 directly collides with a reaction kettle carelessly slightly when being opened or closed is solved.
In this embodiment, the periphery of manhole flange 3 is equipped with a plurality of first logical grooves 13, the below of first logical groove 13 is equipped with a rotation portion 14, rotation portion 14 is connected with a threaded rod 16, the top of threaded rod 16 is equipped with fastening bolt 17, the periphery of flange lid 4 is equipped with several second logical grooves 12 corresponding with first logical groove 13, threaded rod 16 can rotate to in first logical groove 13 and second logical groove 12 through rotation portion 14, through fastening bolt 17, so that flange lid 4 and manhole flange 3 fastening combination.
In this embodiment, the rotating portion 14 includes a U-shaped seat, a pin, and a connecting block 15, the U-shaped seat is movably connected to the connecting block through the pin, and the connecting block is fixedly connected to the threaded rod 16, so that the threaded rod 16 can rotate around the pin. When fastening is needed, the threaded rod 16 is rotated upwards and placed into the first through groove 13 and the second through groove 12, and then the fastening bolt 17 is rotated to fasten and connect the flange cover 4 and the manhole flange 3; when needing to dismantle, the reverse rotation fastening bolt 17, the threaded rod 16 that will lift off rotates the below in first logical groove through the round pin axle, avoids threaded rod 16 to scatter and disappear, influences dismouting efficiency.
Preferably, the fastening bolt 17 is a claw bolt, and the claw bolt can rotate without a common tool, so that the mounting and dismounting efficiency is greatly improved.
In this embodiment, a sealing ring 18 is provided below the flange cover 4 to seal between the flange cover 4 and the manhole flange 3.
In this embodiment, the perforated part of the pipe body 2 is provided with a screen 19 for preventing the material (such as powder) inside the device from overflowing.
Preferably, the hydraulic control device is electrically controlled, so that labor can be saved.
The number of the first through grooves and the second through grooves is small, the sealing effect cannot be guaranteed, the number of the first through grooves and the second through grooves is too large, and the dismounting efficiency is reduced, so that the number of the first through grooves and the number of the second through grooves are between 6 and 10, the sealing effect can be guaranteed, and the dismounting efficiency is high, and in the embodiment, the number of the first through grooves and the number of the second through grooves are 7.
The structure of the quick-opening manhole is particularly suitable for equipment which needs to be frequently opened for inspection, such as equipment in a powder production process.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. A quick-opening manhole, comprising:
the connecting pipe is communicated with the interior of the equipment and comprises a pipe body and a manhole flange arranged at the opening of the pipe body, wherein one side of the manhole flange is provided with a first connecting part, and the pipe body is provided with a supporting part;
the manhole flange is provided with a first connecting part and a second connecting part, and the first connecting part is rotatably connected with the second connecting part through a connecting unit;
a hydraulic connection comprising:
the first fixed end is arranged on the supporting part;
the second fixed end is arranged on the second connecting part; and
the hydraulic stem, its both ends can move about with first stiff end with the second stiff end is connected, can control through a hydraulic control device the extension of hydraulic stem or shorten, and then drive the blind flange centers on the linkage unit rotates, realizes the closing or opening of quick-opening manhole.
2. The quick-opening manhole as claimed in claim 1, wherein the manhole flange has a plurality of first through grooves formed in an outer periphery thereof, a rotating portion is formed below the first through grooves, the rotating portion is connected to a threaded rod, fastening bolts are disposed above the threaded rod, a plurality of second through grooves corresponding to the first through grooves are formed in an outer periphery of the flange cover, and the threaded rod can be rotated into the first through grooves and the second through grooves by the rotating portion, so that the flange cover and the manhole flange can be fastened and combined by the fastening bolts.
3. The quick opening manhole of claim 1, wherein the first and second securing ends are U-shaped seats.
4. The quick opening manhole of claim 1 wherein the attachment unit is a shank.
5. The quick-opening manhole as claimed in claim 2, wherein the rotating part includes a U-shaped seat, a pin and a connecting block, the U-shaped seat is movably connected to the connecting block through the pin, and the connecting block is fixedly connected to the threaded rod.
6. The quick-opening manhole of claim 2, wherein the fastening bolts are ram-lag bolts.
7. A quick-opening manhole as claimed in claim 1, wherein a sealing ring is provided under the flange cover.
8. The quick-opening manhole as claimed in claim 1, wherein the opening of the pipe body is provided with a screen for preventing the overflow of the material inside the equipment.
9. The quick opening manhole of claim 1 wherein the hydraulic control device is electrically controlled.
10. A quick-opening manhole as claimed in claim 2, wherein the number of the first through slots and the second through slots is between 6 and 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120479238.2U CN215437943U (en) | 2021-03-05 | 2021-03-05 | Quick-opening manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120479238.2U CN215437943U (en) | 2021-03-05 | 2021-03-05 | Quick-opening manhole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215437943U true CN215437943U (en) | 2022-01-07 |
Family
ID=79702645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120479238.2U Active CN215437943U (en) | 2021-03-05 | 2021-03-05 | Quick-opening manhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215437943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627318A (en) * | 2022-11-02 | 2023-01-20 | 九江萍钢钢铁有限公司 | Water-cooled quick-opening manhole |
-
2021
- 2021-03-05 CN CN202120479238.2U patent/CN215437943U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627318A (en) * | 2022-11-02 | 2023-01-20 | 九江萍钢钢铁有限公司 | Water-cooled quick-opening manhole |
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