CN110561307A - Internal pressure type manhole cover plate positioning device - Google Patents
Internal pressure type manhole cover plate positioning device Download PDFInfo
- Publication number
- CN110561307A CN110561307A CN201910963202.9A CN201910963202A CN110561307A CN 110561307 A CN110561307 A CN 110561307A CN 201910963202 A CN201910963202 A CN 201910963202A CN 110561307 A CN110561307 A CN 110561307A
- Authority
- CN
- China
- Prior art keywords
- manhole cover
- cover plate
- internal pressure
- connecting piece
- positioning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims 1
- 210000003127 knee Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a positioning device for an internal pressure manhole cover plate, which relates to a positioning device for a manhole cover plate and aims to solve the problems that the existing high-pressure container internal pressure manhole cover plate is heavy in weight, difficult and complicated in disassembly and reinstallation processes, manual adjustment is needed each time, and inaccurate positioning causes untight sealing; positioning bolt threaded connection is on the bottom plate, the one end fixed mounting who cranks the arm has the rotation axis, positioning bolt's top is on the rotation axis, the other end that cranks the arm rotates with the one end of apron fixed strip through first round pin axle to be connected, the other end that the apron fixed strip passes through the second round pin axle to be connected with the one end rotation of connecting piece, the other end and the rocking handle of connecting piece are connected, the rocking handle rotates through the flexion of pivot with cranking the arm to be connected, the apron fixed strip is installed on manhole apron, manhole apron lid dress is on manhole seat. The invention is used for the field of installation of the internal pressure manhole cover plate.
Description
Technical Field
The invention relates to a manhole cover plate positioning device, in particular to an internal pressure type manhole cover plate positioning device.
Background
The existing high-pressure vessel and heat exchanger (such as high-pressure heater, high-pressure boiler steam drum and photo-thermal power generation steam generator) usually adopt an internal pressure type manhole cover, and the manhole cover plate is tightly pressed on a manhole seat by utilizing the high pressure in the boiler so as to ensure the sealing effect. Manholes are the access ways to the interior of the equipment for inspection and maintenance. The manhole door has to be disassembled and assembled in order to enter the manhole, and for a high-pressure container using the internal-pressure manhole cover, the disassembly and assembly are difficult to be completed without other auxiliary tools due to the heavy weight of the manhole cover. Simultaneously for the dismantlement process, the repacking process is more difficult and complicated, and inside most assembly and disassembly tools at present can only shift out the manhole cover or hang into equipment, the installation location all needed artifical manual regulation at every turn, and not only consuming time appears because the location is inaccurate moreover and leads to sealed not tight problem.
Disclosure of Invention
The invention provides a positioning device for an internal pressure type manhole cover plate, which aims to solve the problems that the existing internal pressure type manhole cover in a high-pressure container is heavy in weight, difficult and complicated in disassembly and reinstallation processes, needs manual adjustment every time, and is inaccurate in positioning, so that the sealing is not tight.
The technical scheme adopted by the invention for solving the problems is as follows:
the device comprises a cover plate fixing strip, a rotating shaft, a bottom plate, a positioning bolt, a support, a crank arm, a rotating shaft, a rocking handle and a connecting piece; the support mounting is on the manhole seat, it has the bar hole to be close to the processing of support bottom, the bottom plate is installed on the support, positioning bolt threaded connection is on the bottom plate, the one end fixed mounting of cranking arm has the rotation axis, the rotation axis sets up in the bar hole of support, positioning bolt's top is on the rotation axis, the other end of cranking arm rotates through the one end of first round pin axle with the apron fixed strip and is connected, the other end of apron fixed strip rotates through the one end of second round pin axle with the connecting piece to be connected, the other end and the rocking handle of connecting piece are connected, the rocking handle rotates through the flexion of pivot with cranking arm to be connected, the apron fixed strip is installed on the manhole apron, manhole apron lid dress is.
The invention has the beneficial effects that:
The embodiment of the invention provides a dismounting and positioning device for an internal pressure type manhole cover.
The structure of the invention can completely take out and put the manhole cover plate into the equipment when the manhole is opened, can freely adjust the upper and lower installation positions of the manhole cover, is well adjusted and locked by the bolt before installation, and can greatly reduce maintenance cost and time consumption when the manhole cover is disassembled and assembled again after the equipment is used.
The support is used for fixing the crank arm, providing an axis point for the rotation of the crank arm and adjusting the crank arm to be positioned up and down; the crank arm is used for connecting the support, the manhole cover plate and the rocking handle, so that the manhole cover plate can be pushed in and pulled out of the steam drum; the rocking handle is used for realizing the level and erect of manhole cover board to and the angle of adjustment manhole cover for the manhole cover fitting surface, and the apron fixed strip is used for connecting manhole cover board, crank and rocking handle three. The support, the crank arm, the rocking handle and the cover plate fixing strip are coordinated and matched in the using process, and finally the positioning, the putting in and the taking out of the cover plate are realized.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
fig. 2 is a schematic view of the connection of the cover fixing strip 1 to the connecting member 16.
Fig. 3 is a schematic view of the connection of the thrust bearing 15 and the connecting member 16 to the rocking handle 12.
3 fig. 3 4 3 is 3 a 3 view 3 from 3 a 3- 3 a 3 in 3 fig. 3 1 3. 3
Fig. 5 is a view from direction C-C of fig. 1.
Fig. 6 is a view from E-E in fig. 1.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 6, and the internal pressure type manhole cover plate positioning device in the embodiment comprises a cover plate fixing strip 1, a rotating shaft 6, a bottom plate 7, a positioning bolt 8, a support 9, a crank arm 10, a rotating shaft 11, a rocking handle 12 and a connecting piece 16; support 9 installs on the manhole seat, it has bar hole 5 to be close to 9 bottom processing of support, bottom plate 7 installs on support 9, 8 threaded connection of positioning bolt are on bottom plate 7, the one end fixed mounting of bent arm 10 has rotation axis 6, rotation axis 6 sets up in the bar hole 5 of support 9, positioning bolt 8's top is on rotation axis 6, the other end of bent arm 10 rotates through first round pin axle and apron fixed strip 1's one end to be connected, the other end of apron fixed strip 1 rotates through the one end of second round pin axle with connecting piece 16 to be connected, the other end of connecting piece 16 is connected with rocking handle 12, rocking handle 12 rotates through the flexion of pivot 11 with bent arm 10 to be connected, apron fixed strip 1 installs on the manhole apron, manhole apron lid dress is on the manhole seat.
The second embodiment is as follows: referring to fig. 1, the embodiment is described, in which the support 9 includes two first side plates 4, the two first side plates 4 are disposed opposite to each other, and other methods are the same as those in the first embodiment.
The third concrete implementation mode: referring to fig. 1, the present embodiment will be described, in which a crank arm 10 includes two second side plates 14, and the two second side plates 14 are disposed opposite to each other. The other methods are the same as those in the first embodiment.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 and 4, and the internal pressure type manhole cover plate positioning device according to the present embodiment further includes a plurality of connecting plates 3, two first side plates 4 are fixedly connected by the plurality of connecting plates 3 in a welding manner, and two second side plates 14 are fixedly connected by the plurality of connecting plates 3 in a welding manner. The second side plate 14 is two second side plates 14 with curved profiles, and other methods are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 1 and 5, and the present embodiment further includes a spacer 13, and the spacer 13 is installed between two second side plates 14. The distance tube 13 is arranged between the two second side plates 14 by means of bolts. The other methods are the same as those of the third embodiment.
The sixth specific implementation mode: the embodiment is described with reference to fig. 1, and the internal pressure type manhole cover plate positioning device further includes a fixed connection bolt 2, the cover plate fixing strip 1 is a channel steel, a transverse plate of the channel steel is fixedly connected with a manhole cover plate through the fixed connection bolt 2, one end of two vertical plates of the channel steel is rotatably connected with a crank arm 10 through a first pin shaft, and the other end of the two vertical plates of the channel steel is rotatably connected with a connecting piece 16 through a second pin shaft. The other methods are the same as those in the first embodiment.
In the present embodiment, the second pin shaft is used to rotate the connecting member 16 and the cover fixing strip 1 relatively.
The seventh embodiment: the embodiment is described by combining fig. 1 and fig. 3, and the embodiment describes an internal pressure type manhole cover plate positioning device, which further comprises a thrust bearing 15, wherein the connecting piece 16 comprises a connecting transverse plate and two straight plates, the two straight plates are vertically and fixedly connected with the connecting transverse plate, a plate body of the cover plate fixing strip 1 is rotatably connected with the two straight plates of the connecting piece 16 through a second pin shaft, an external thread is processed at one end of the rocking handle 12, an 'n' -shaped bent rod is processed at the other end of the rocking handle 12, the connecting transverse plate of the connecting piece 16 and the thrust bearing 15 are sleeved on the external thread of the rocking handle 12, and the thrust bearing 15 and the connecting piece 16 are installed at the external thread of the rocking handle 12 through nuts. The other methods are the same as in the first or sixth embodiments.
In the embodiment, the friction force between the rocking handle 12 and the connecting piece 16 is reduced through the thrust bearing 15, so that the labor-saving effect is achieved.
Principle of operation
When the steam drum is in work, the rotating shaft 6 at the position of the strip-shaped hole 5 on the support 9 is used as a center to rotate the crank arm 10 towards the interior of the steam drum, and the manhole cover plate is pushed into the steam drum; properly loosening the fixed connecting bolt 2, rotating the manhole cover plate by 90 degrees, shaking the rocking handle 12, flatting the manhole cover plate from the vertical position to the horizontal position, finally rotating the crank arm 10 to the steam drum by taking the rotating shaft 6 at the waist-shaped hole 5 on the support 9 as the center, and pulling out the manhole cover plate. When the manhole cover plate is placed in the manhole seat, the manhole cover plate is flatly placed to the horizontal position and pushed to the manhole seat, the rocking handle 12 is shaken, the manhole cover plate is rotated to the vertical position from the horizontal position, the manhole cover plate is rotated by 90 degrees, the fixed connecting bolt 2 is screwed, and the manhole cover plate is installed on the manhole seat.
Claims (7)
1. The utility model provides an interior pressure type manhole cover plate positioner which characterized in that: the device comprises a cover plate fixing strip (1), a rotating shaft (6), a bottom plate (7), a positioning bolt (8), a support (9), a crank arm (10), a rotating shaft (11), a rocking handle (12) and a connecting piece (16); support (9) is installed on the manhole seat, a strip-shaped hole (5) is processed near the bottom end of support (9), bottom plate (7) is installed on support (9), positioning bolt (8) is in threaded connection with bottom plate (7), one end of crank arm (10) is fixedly provided with a rotating shaft (6), rotating shaft (6) is arranged in strip-shaped hole (5) of support (9), the top end of positioning bolt (8) is pressed against rotating shaft (6), the other end of crank arm (10) is rotatably connected with one end of cover plate fixing strip (1) through a first pin shaft, the other end of cover plate fixing strip (1) is rotatably connected with one end of connecting piece (16) through a second pin shaft, the other end of connecting piece (16) is connected with crank handle (12), crank handle (12) is rotatably connected with the bending part of crank arm (10) through a rotating shaft (11), cover plate fixing strip (1) is installed on manhole cover plate, the manhole cover plate is covered on the manhole seat.
2. The internal pressure type manhole cover positioning device according to claim 1, wherein: the support (9) comprises two first side plates (4), and the two first side plates (4) are arranged oppositely.
3. The internal pressure type manhole cover positioning device according to claim 1, wherein: the crank arm (10) comprises two second side plates (14), and the two second side plates (14) are arranged oppositely.
4. A manhole cover positioning device of the internal pressure type according to claim 1, 2 or 3, wherein: the novel connecting plate is characterized by further comprising a plurality of connecting plates (3), the two first side plates (4) are fixedly connected through the connecting plates (3), and the two second side plates (14) are fixedly connected through the connecting plates (3).
5. The internal pressure type manhole cover positioning device according to claim 3, wherein: it also comprises distance tubes (13), and the distance tubes (13) are arranged between the two second side plates (14).
6. The internal pressure type manhole cover positioning device according to claim 1, wherein: it still includes fixed connection bolt (2), and apron fixed strip (1) is the channel-section steel, and the diaphragm of channel-section steel passes through fixed connection bolt (2) and manhole cover plate fixed connection, and the one end of two risers of channel-section steel is passed through first round pin axle and is rotated with crank arm (10) and be connected, and the other end of two risers of channel-section steel is passed through second round pin axle and is rotated with connecting piece (16) and be connected.
7. The internal pressure type manhole cover positioning device according to claim 1 or 6, wherein: it still includes thrust bearing (15), connecting piece (16) are including connecting diaphragm and two straight boards, two straight boards with be connected the perpendicular fixed connection of diaphragm, the plate body of apron fixed strip (1) is rotated with two straight boards of connecting piece (16) through the second round pin axle and is connected, rocking handle (12) one end processing has the external screw thread, the other end processing of rocking handle (12) has 'n' shape knee, the connection diaphragm of connecting piece (16) and thrust bearing (15) suit are on the external screw thread of rocking handle (12), and thrust bearing (15) and connecting piece (16) are installed in the external screw thread department of rocking handle (12) through the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963202.9A CN110561307A (en) | 2019-10-11 | 2019-10-11 | Internal pressure type manhole cover plate positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963202.9A CN110561307A (en) | 2019-10-11 | 2019-10-11 | Internal pressure type manhole cover plate positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110561307A true CN110561307A (en) | 2019-12-13 |
Family
ID=68784461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910963202.9A Pending CN110561307A (en) | 2019-10-11 | 2019-10-11 | Internal pressure type manhole cover plate positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110561307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267043A (en) * | 2020-03-13 | 2020-06-12 | 江苏核电有限公司 | Tool and method for adjusting center position of inclined manhole cover plate of nuclear power station |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632412U (en) * | 1992-08-15 | 1994-04-28 | 株式会社島津製作所 | Manhole cover push-up device |
| JPH07268889A (en) * | 1994-03-31 | 1995-10-17 | Toshiba Corp | Carrying-in and carrying-out device for manhole |
| JPH10159116A (en) * | 1996-11-27 | 1998-06-16 | Maeta Concrete Ind Ltd | Ladder and manhole with falling preventive tool for manhole |
| JP2007197769A (en) * | 2006-01-26 | 2007-08-09 | Nippon Steel Engineering Co Ltd | Device for attaching/detaching manhole lid for exchanging blast furnace bell-less chute, and attaching/detaching method therefor |
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| CN201760859U (en) * | 2010-08-03 | 2011-03-16 | 宁波狮球通风机电有限公司 | External pliers |
| CN202045486U (en) * | 2011-02-14 | 2011-11-23 | 浙江吉利汽车有限公司 | Damper and brake assembling tool for vehicle |
| CN102962804A (en) * | 2012-11-16 | 2013-03-13 | 东方电气(广州)重型机器有限公司 | Device for assembling and disassembling elliptical self-sealing manhole cover |
| CN202780427U (en) * | 2012-08-28 | 2013-03-13 | 浙江金刚汽车有限公司 | Flywheel detaching device |
| CN103624510A (en) * | 2012-08-22 | 2014-03-12 | 中国石油化工集团公司 | Davit device for cylindrical shell |
| CN205832419U (en) * | 2016-06-30 | 2016-12-28 | 长兴化学（天津）有限公司 | A kind of pressure vessels for the chemical industry upkeep operation device |
| CN206568093U (en) * | 2017-03-14 | 2017-10-20 | 张春庆 | High-pressure self-sealing manhole tool specially for attaching and detaching |
| CN206568077U (en) * | 2017-03-14 | 2017-10-20 | 银川利智信知识产权咨询服务有限公司 | The specific purpose tool dismounted for high-pressure self-sealing manhole |
| CN210524924U (en) * | 2019-10-11 | 2020-05-15 | 中国船舶重工集团公司第七0三研究所 | Internal pressure type manhole cover plate positioning device |
-
2019
- 2019-10-11 CN CN201910963202.9A patent/CN110561307A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632412U (en) * | 1992-08-15 | 1994-04-28 | 株式会社島津製作所 | Manhole cover push-up device |
| JPH07268889A (en) * | 1994-03-31 | 1995-10-17 | Toshiba Corp | Carrying-in and carrying-out device for manhole |
| JPH10159116A (en) * | 1996-11-27 | 1998-06-16 | Maeta Concrete Ind Ltd | Ladder and manhole with falling preventive tool for manhole |
| JP2007197769A (en) * | 2006-01-26 | 2007-08-09 | Nippon Steel Engineering Co Ltd | Device for attaching/detaching manhole lid for exchanging blast furnace bell-less chute, and attaching/detaching method therefor |
| CN200946063Y (en) * | 2006-09-18 | 2007-09-12 | 上海动力设备有限公司 | Self-sealing manhole cover detaching device of high-pressure container |
| CN201376172Y (en) * | 2009-01-22 | 2010-01-06 | 王平 | Device for mounting lifting ring of plastic infusion bottle |
| CN101623859A (en) * | 2009-08-18 | 2010-01-13 | 四川川润股份有限公司 | Assembly and disassembly device for elliptical manhole cover plate of pressure vessel |
| CN201760859U (en) * | 2010-08-03 | 2011-03-16 | 宁波狮球通风机电有限公司 | External pliers |
| CN202045486U (en) * | 2011-02-14 | 2011-11-23 | 浙江吉利汽车有限公司 | Damper and brake assembling tool for vehicle |
| CN103624510A (en) * | 2012-08-22 | 2014-03-12 | 中国石油化工集团公司 | Davit device for cylindrical shell |
| CN202780427U (en) * | 2012-08-28 | 2013-03-13 | 浙江金刚汽车有限公司 | Flywheel detaching device |
| CN102962804A (en) * | 2012-11-16 | 2013-03-13 | 东方电气(广州)重型机器有限公司 | Device for assembling and disassembling elliptical self-sealing manhole cover |
| CN205832419U (en) * | 2016-06-30 | 2016-12-28 | 长兴化学（天津）有限公司 | A kind of pressure vessels for the chemical industry upkeep operation device |
| CN206568093U (en) * | 2017-03-14 | 2017-10-20 | 张春庆 | High-pressure self-sealing manhole tool specially for attaching and detaching |
| CN206568077U (en) * | 2017-03-14 | 2017-10-20 | 银川利智信知识产权咨询服务有限公司 | The specific purpose tool dismounted for high-pressure self-sealing manhole |
| CN210524924U (en) * | 2019-10-11 | 2020-05-15 | 中国船舶重工集团公司第七0三研究所 | Internal pressure type manhole cover plate positioning device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267043A (en) * | 2020-03-13 | 2020-06-12 | 江苏核电有限公司 | Tool and method for adjusting center position of inclined manhole cover plate of nuclear power station |
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