CN104828418A - Rapidly-opened manhole cover - Google Patents
Rapidly-opened manhole cover Download PDFInfo
- Publication number
- CN104828418A CN104828418A CN201510246468.3A CN201510246468A CN104828418A CN 104828418 A CN104828418 A CN 104828418A CN 201510246468 A CN201510246468 A CN 201510246468A CN 104828418 A CN104828418 A CN 104828418A
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- China
- Prior art keywords
- paw
- base
- lid
- rod
- manhole cover
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/10—Manholes; Inspection openings; Covers therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
The invention discloses a rapidly-opened manhole cover in the technical field of tank cars. The rapidly-opened manhole cover comprises a cylindral base connected to a tank body, a circular cover body capable of covering an opening of the base is hinged to the edge of the opening of the base, a sealing pad is correspondingly arranged at the position of the combination face of the cover body and the base, and a plurality of pressing claw mechanisms are distributed on the outer side of the edge of the opening of the base in the circumferential direction; each pressing claw mechanism comprises a connecting lug, a first pin shaft, a threaded sleeve, an adjusting screw, a second pin shaft and a pressing claw, wherein the connecting lug is fixedly connected to the lateral face of the base and is connected with the threaded sleeve through the first pin shaft, the adjusting screw is connected to the threaded sleeve in a threaded mode, the second pin shaft penetrates through the root of the adjusting screw and is connected with the connecting end of the pressing claw. When the opening of the base is closed through the cover body, the adjusting screws are inserted into U-sehaped openings in the periphery of the cover body, the free ends of the pressing claws are attached to the surface of the cover body, and the cover body and the base are elastically pressed through the pressing claws. The rapidly-opened manhole cover is reliable in locking, the pressing claws are not prone to being blocked, and the rapidly-opened manhole cover is suitable for the various tank cars used for containing liquid, powder and particles.
Description
Technical field
The present invention relates to a kind of maintenance of tank car, check passage, particularly a kind of manhole device.
Background technology
In prior art, there is a kind of manhole device for groove tank car, its structure mainly comprises the cylinder base be connected on tank body, base edge suitable for reading is hinged with the circular lid that can hide base oral area, lid center is provided with drive screw, is provided with the connecting rod mechanism be connected with drive screw inside lid, and connecting rod mechanism is connected with four paws, paw is corresponding with base oral area inside edge, is also provided with sealing rubber pad between base oral area and lid.This device is arranged on groove tank car, and lid covers the oral area of base rotationally, and then, by rotating drive screw rod, drive screw drives paw stretch out and be pressed on base oral area inside edge through connecting rod mechanism, realizes being tightly connected.When needing to open, contrarotation drive screw, paw can depart from base oral area inside edge, lid can be opened, thus overhaul tank interior, also can check in-built liquid, particle, powder etc., sample, the work such as measurement.Its weak point is: this equipment safety is poor, cement or other granular material are easily adsorbed in drive screw screw thread fit position, cause the sliding tooth of the stuck or screw thread of screw thread, increase clamp load torque, increase labour intensity, cause to operate with boosting-rod, when aloft work, be easy to cause safety misadventure.When lid is closed, paw is positioned at inside cylindrical shell, and when problem occurs for it, hidden danger is not easily found, and during four paw unbalance stress or stressed when too concentrating, not only can cause poor sealing, and paw easy fracture, easily produce potential safety hazard.In addition, lid Heavy Weight of the prior art, operator's labour intensity is large, opens fast speed, time and effort consuming.
Summary of the invention
The object of this invention is to provide one and open manhole cover fast, can open fast, not easily jam, and locking is reliable.
The object of the present invention is achieved like this: one opens manhole cover fast, comprise the cylinder base be connected on tank body, the mouth rim of base is hinged with the circular lid that can hide base oral area, described lid is corresponding with the faying face position of base is provided with packing seal, the mouth rim external circumferential of base is distributed with some pressing claw mechanisms, each pressing claw mechanism comprises engaging lug, bearing pin one, screw collar, adjusting screw(rod), bearing pin two and paw, the axis of bearing pin one and bearing pin two parallels, screw collar and adjusting screw(rod) coaxial line, the axis of bearing pin one and the axis perpendicular of adjusting screw(rod), described engaging lug is fixedly connected on base side, engaging lug is connected with screw collar through described bearing pin one, adjusting screw(rod) is threaded on screw collar, bearing pin two passes described adjusting screw(rod) root and is connected with paw coupling end, the other end of paw is free end, lid periphery and paw one_to_one corresponding are provided with U-shaped opening, and when lid closed base oral area, in the laterally inserted U-shaped opening of described adjusting screw(rod), the free end of paw rotates and abuts in top surface, and the side elastic of paw coupling end compresses lid and base.
Base welded and installed of the present invention is on the tank body of groove tank car, when paw does not compress lid, adjusting screw(rod) can depart from U-shaped opening, between lid and base, only its articulated position is connected, rotatable opening cover, operating personal can enter in tank body and overhaul, and also can check in-built liquid, particle, powder etc., sample, the work such as measurement.When needs hermetically closing lid, first adjusting screw(rod) is laterally snapped in U-shaped opening, paw end is positioned on the upside of lid upper surface, then paw is rotated, the free end of paw is made to abut in top surface, the side elastic of paw coupling end compresses lid and base, realizes being tightly connected of lid and base.When needing opening cover, reverse operating.Compared with prior art, beneficial effect of the present invention is: this device can fast-holding lid and base by paw, make to realize sealing between the two, also can quick open cover body, the adjustable extension elongation of adjusting screw(rod), so that the thrust of quick adjustment paw, when tank body internal pressure is greater than setting value, sealing surface between base and lid lost efficacy, and gas of can outwards releasing voluntarily, to ensure the safety of tank body.The locking of this device is reliable, and paw is jam not easily, and it is applicable on the various groove tank cars of loading liquid, powder, particle.
Reliable for ensureing paw locking further, not easily get loose, described paw coupling end is curved; This arc meets and rotatably compresses in the process of lid at paw, reduces gradually after the distance of the stress point on paw and bearing pin two axis increases gradually again.Due to the distance of the stress point on paw and bearing pin two axis increase gradually after reduce gradually again, have the peak value that is stressed in motion process, after compression, paw needs larger external force just can cross this peak value, and therefore, paw can realize self-locking, make it not easily throw off voluntarily, further ensure safety.
As a further improvement on the present invention, position corresponding with paw coupling end on described lid is connected with cushion block through screw, and cushion block is provided with the notch corresponding with U-shaped opening.Cushion block can by wear-resisting and have elastomeric nylon material and make, and it can be changed separately after damaging.
As a further improvement on the present invention, described U-shaped opening is arranged on the protrusion of cover edge.The program facilitates switch lid, meanwhile, also facilitates locking.
For ensureing safety further, the bearing pin one of at least one pressing claw mechanism is connected with safety fastener rotationally, when paw compresses lid, safety fastener rotates and blocks on the upside of cushion block.When having pressure in tank body, unclamp one by one in the process of paw, likely gas is popped out, and causes accident, adopts safety fastener that lid can be avoided to takeoff suddenly and hurts sb.'s feelings, further ensure safety.
The further improvement of a upper scheme is, described cushion block is provided with a step raised up, and when paw compresses lid, the part that safety fastener blocks on the upside of cushion block is positioned at inside step.The setting of step can prevent safety fastener slippage, makes its safety higher.
For ease of regulating, meanwhile, can ensure that again adjusting screw(rod) not easily loosens, described adjusting screw(rod) end is provided with radial through hole, is provided with stop rod in radial through hole, and described stop rod is made up of elastomeric material and protrudes from thread surface.Stop rod be arranged so that adjusting screw(rod) must adopt afterburning mode could twist dynamic, get loose voluntarily when it can be avoided to use.
For protection screw thread is not impaired, adjusting screw(rod) is exposed on outer thread segment and is set with protecting sleeve for thread.
Antitheft for realizing, correspondingly between the mouth rim of described base and the edge of lid be provided with lock hole.Antitheft by lock hole lockable.
For ease of supervision, the free end of described paw is provided with lead sealing through wires hole.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure diagram after lid of the present invention is closed.
Fig. 2 is front view of the present invention.
Fig. 3 is that the A-A of Fig. 2 is to cutaway view.
Fig. 4 is the partial enlarged drawing of C in Fig. 2.
Fig. 5 is the partial enlarged drawing of D in Fig. 3.
Fig. 6 is the three-dimensional structure diagram after Cover opening of the present invention.
Fig. 7 is E part partial enlarged drawing after removing paw in Fig. 6.
Fig. 8 is that the B-B of Fig. 2 is to partial view.
Fig. 9 is cushion block structure schematic diagram.
Figure 10 is the exploded drawings of adjusting screw(rod), screw collar connecting bridge.
Wherein, 1 safety fastener, 2 lids, 3 paws; 4 adjusting screw(rod)s, 5 cushion blocks, 501 steps, 6 jointed shafts; 7 lock holes, 8 bearing pin two, 9 screw collars, 10 engaging lugs; 11 bearing pin one, 12 lead sealing through wires holes, 13 bases, 14 packing seals; 15U shape opening, 16 waist type grooves, 17 articulated sections; 18 stop rods, 19 through holes, 20 protecting sleeve for thread.
Detailed description of the invention
As Figure 1-10 shows, for opening manhole cover fast, its structure includes the cylinder base 13 be connected on tank body, the mouth rim of base 13 is hinged with the circular lid 2 that can hide base oral area, specifically, outside the oral area of base 13 and on lid 2, correspondence is provided with articulated section 17, jointed shaft 6 is hinged by both through articulated section 17, compress for ensureing to seal between lid 2 energy and base 13, can waist type groove 16 be set on the articulated section of lid 2, jointed shaft 6 is through this waist type groove 16, lid not only can be rotated, simultaneously, also reserve move place, so that lid 2 can realize sealing with base 13 and compress.
Lid 2 is corresponding with the faying face position of base 13 is provided with packing seal 14, sealing pad 14 is arranged on the inner surface of lid 2, also avoids dust stratification, and the section of packing seal 14 is T-shaped, lid 2 inner surface correspondence is provided with the groove of T-shaped, to ensure that packing seal 14 installs rear difficult drop-off.
The mouth rim external circumferential of base 13 is distributed with some pressing claw mechanisms, in the present embodiment, the number of pressing claw mechanism is 6, it is along the circumferential direction uniform, each pressing claw mechanism comprises engaging lug 10, bearing pin 1, screw collar 9, adjusting screw(rod) 4, bearing pin 28 and paw 3, the axis of bearing pin 1 and bearing pin 28 parallels, screw collar 9 and adjusting screw(rod) 4 coaxial line, the axis of bearing pin 1 and the axis perpendicular of adjusting screw(rod) 4, engaging lug 10 is fixedly connected on base 13 side, engaging lug 10 is connected with screw collar 9 through bearing pin 1, adjusting screw(rod) 4 is threaded on screw collar 9, bearing pin 28 passes adjusting screw(rod) 4 root and is connected with paw coupling end, the other end of paw 3 is free end, lid 2 periphery and paw 3 one_to_one corresponding are provided with U-shaped opening 15, when the oral area of lid 2 closed base 13, in the laterally inserted U-shaped opening 15 of adjusting screw(rod) 4, the free end of paw 3 rotates and abuts in lid 2 surface, makes the side elastic of paw coupling end compress lid 2 and base 13.
Paw coupling end is curved; This arc meets and rotatably compresses in the process of lid 2 at paw 3, reduces gradually after the distance of the stress point on paw 3 and bearing pin 28 axis increases gradually again.In motion process, have a stroke and stressed peak value, after compression, paw 3 needs larger external force just can cross this peak value, and therefore, paw 3 can realize self-locking, makes it not easily throw off voluntarily, further ensures safety.
Paw 3 can directly compress lid 2, and also can connect cushion block 5 through screw in position corresponding with paw coupling end on lid 2, cushion block 5 is provided with the notch corresponding with U-shaped opening 15.U-shaped opening 15 is arranged on the protrusion at lid 2 edge.The program facilitates switch lid 2, meanwhile, also facilitates locking.Cushion block 5 can by wear-resisting and have elastomeric nylon material and make, and it can be changed separately after damaging, and improves reliability of service.Due to the setting of cushion block 5, the selection of the material making lid 2 own can be more wide in range, such as, adopt the aluminum alloy materials of lightweight, can alleviate overall weight.
For ensureing safety further, the bearing pin 1 of a pressing claw mechanism is wherein connected with safety fastener 1 rotationally, and when paw 3 compresses lid 2, safety fastener 1 rotates and blocks on the upside of cushion block 5.Cushion block 5 is provided with a step raised up 501, and when paw 3 compresses lid 2, safety fastener 1 part of blocking on the upside of cushion block 5 is positioned at the inner side of step 501.When having pressure in tank body, unclamp one by one in the process of paw 3, likely gas is popped out, and causes accident, adopts safety fastener 1 that lid 2 can be avoided to takeoff suddenly and hurts sb.'s feelings, further ensure safety.The setting of step 501 can prevent safety fastener 1 slippage, makes its safety higher.Safety fastener 1 preferably can away from jointed shaft 6, and the pressing claw mechanism arranging safety fastener 1 should finally unclamp, and therefore, lid 2 can arrange safety instruction language or prompting mark.
For ease of regulating, and ensure that adjusting screw(rod) 4 not easily loosens, be provided with radial through hole 19 in adjusting screw(rod) 4 end, be provided with stop rod 18 in radial through hole 19, stop rod 18 is made up of elastomeric material, and its two ends protrude from thread surface.Stop rod 18 be arranged so that adjusting screw(rod) 4 must adopt afterburning mode could twist dynamic, get loose voluntarily when it can be avoided to use.For protection screw thread is not impaired, adjusting screw(rod) 4 is exposed on outer thread segment and is set with protecting sleeve for thread 20.
In addition, antitheft for realizing, correspondingly between the mouth rim of described base 13 and the edge of lid 2 be provided with lock hole 7.Antitheft by lock hole 7 lockable.For ease of supervision, the free end of described paw 3 is provided with lead sealing through wires hole 12.
Base 13 welded and installed of the present invention is on the tank body of groove tank car, when paw 3 does not compress lid 2, adjusting screw(rod) 4 can depart from U-shaped opening 15, between lid 2 and base 13, only its articulated position is connected, rotatable opening cover 2, operating personal can enter in tank body and overhaul, also can the liquid, particle, powder etc. in-built to tank body check, sample, the work such as measurement.When needs hermetically closing lid, first adjusting screw(rod) 4 is laterally snapped in U-shaped opening 15, paw 3 end is positioned on cushion block upper surface, then paw 3 is rotated, the free end of paw 3 is made to abut in lid 2 surface, the side elastic of paw 3 coupling end compresses lid 2 and base 13, realizes being tightly connected of lid 2 and base 13.When needing opening cover 2, reverse operating.This device can fast-holding lid 2 and base 13 by paw 3, make to realize sealing between the two, also can quick open cover body 2, the adjustable extension elongation of adjusting screw(rod) 4, so that the thrust of quick adjustment paw 3, when tank body internal pressure is greater than setting value, the sealing surface between base 13 and lid 2 lost efficacy, can outwards to release voluntarily gas, to ensure the safety of tank body.The locking of this device is reliable, and paw 3 not easily jam, it is applicable on the various groove tank cars of loading liquid, powder, particle.
The present invention is not limited to above-described embodiment; on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some technical characteristics wherein to replace and distortion, these are replaced and are out of shape all in protection scope of the present invention.Such as paw can arrange 4,5,8 etc.
Claims (10)
1. open manhole cover fast for one kind, comprise the cylinder base be connected on tank body, the mouth rim of base is hinged with the circular lid that can hide base oral area, described lid is corresponding with the faying face position of base is provided with packing seal, it is characterized in that: the mouth rim external circumferential of base is distributed with some pressing claw mechanisms, each pressing claw mechanism comprises engaging lug, bearing pin one, screw collar, adjusting screw(rod), bearing pin two and paw, the axis of bearing pin one and bearing pin two parallels, screw collar and adjusting screw(rod) coaxial line, the axis of bearing pin one and the axis perpendicular of adjusting screw(rod), described engaging lug is fixedly connected on base side, engaging lug is connected with screw collar through described bearing pin one, adjusting screw(rod) is threaded on screw collar, bearing pin two passes described adjusting screw(rod) root and is connected with paw coupling end, the other end of paw is free end, lid periphery and paw one_to_one corresponding are provided with U-shaped opening, and when lid closed base oral area, in the laterally inserted U-shaped opening of described adjusting screw(rod), the free end of paw rotates and abuts in top surface, and the side elastic of paw coupling end compresses lid and base.
2. quick unlatching manhole cover according to claim 1, is characterized in that: described paw coupling end is curved; This arc meets and rotatably compresses in the process of lid at paw, reduces gradually after the distance of the stress point on paw and bearing pin two axis increases gradually again.
3. quick unlatching manhole cover according to claim 1 and 2, it is characterized in that: position corresponding with paw coupling end on described lid is connected with cushion block through screw, cushion block is provided with the notch corresponding with U-shaped opening.
4. quick unlatching manhole cover according to claim 3, is characterized in that: described U-shaped opening is arranged on the protrusion of cover edge.
5. quick unlatching manhole cover according to claim 3, is characterized in that: the bearing pin one of at least one pressing claw mechanism is connected with safety fastener rotationally, and when paw compresses lid, safety fastener rotates and blocks on the upside of cushion block.
6. quick unlatching manhole cover according to claim 5, is characterized in that: described cushion block is provided with a step raised up, and when paw compresses lid, the part that safety fastener blocks on the upside of cushion block is positioned at inside step.
7. quick unlatching manhole cover according to claim 1 and 2, is characterized in that: described adjusting screw(rod) end is provided with radial through hole, is provided with stop rod in radial through hole, and described stop rod is made up of elastomeric material and protrudes from thread surface.
8. quick unlatching manhole cover according to claim 7, is characterized in that: adjusting screw(rod) is exposed on outer thread segment and is set with protecting sleeve for thread.
9. quick unlatching manhole cover according to claim 1 and 2, is characterized in that: correspondingly between the mouth rim of described base and the edge of lid be provided with lock hole.
10. quick unlatching manhole cover according to claim 1 and 2, is characterized in that: the free end of described paw is provided with lead sealing through wires hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246468.3A CN104828418A (en) | 2015-05-15 | 2015-05-15 | Rapidly-opened manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246468.3A CN104828418A (en) | 2015-05-15 | 2015-05-15 | Rapidly-opened manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104828418A true CN104828418A (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510246468.3A Pending CN104828418A (en) | 2015-05-15 | 2015-05-15 | Rapidly-opened manhole cover |
Country Status (1)
| Country | Link |
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| CN (1) | CN104828418A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106586316A (en) * | 2017-02-08 | 2017-04-26 | 泰州市存中机械厂 | Integrated manhole assembly |
| CN107138109A (en) * | 2017-07-17 | 2017-09-08 | 衡阳屹顺化工有限公司 | A kind of manhole cover switching device of reactor |
| CN113335715A (en) * | 2021-06-23 | 2021-09-03 | 永康市康多机械科技有限公司 | Thermos cup subassembly |
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| CN101482177A (en) * | 2008-01-09 | 2009-07-15 | 中国国际海运集装箱(集团)股份有限公司 | Manhole structure and pressure container with the same |
| US20140237902A1 (en) * | 2013-02-28 | 2014-08-28 | Clay And Bailey Manufacturing Company | Tank manway with non-corrosive cover |
| CN203806453U (en) * | 2014-04-02 | 2014-09-03 | 滁州市金路数控机械有限公司 | Stud type manhole cover |
| CN203889404U (en) * | 2014-04-02 | 2014-10-22 | 滁州市金路数控机械有限公司 | Adjustable pressing claw for inner side of manhole cover of oil tank truck |
| CN204164186U (en) * | 2014-10-08 | 2015-02-18 | 浙江明泰标准件有限公司 | A kind of screw rod of chek bolt |
| CN204688837U (en) * | 2015-05-15 | 2015-10-07 | 扬州北方空压机有限公司 | Quick unlatching manhole cover |
-
2015
- 2015-05-15 CN CN201510246468.3A patent/CN104828418A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482177A (en) * | 2008-01-09 | 2009-07-15 | 中国国际海运集装箱(集团)股份有限公司 | Manhole structure and pressure container with the same |
| US20140237902A1 (en) * | 2013-02-28 | 2014-08-28 | Clay And Bailey Manufacturing Company | Tank manway with non-corrosive cover |
| CN203806453U (en) * | 2014-04-02 | 2014-09-03 | 滁州市金路数控机械有限公司 | Stud type manhole cover |
| CN203889404U (en) * | 2014-04-02 | 2014-10-22 | 滁州市金路数控机械有限公司 | Adjustable pressing claw for inner side of manhole cover of oil tank truck |
| CN204164186U (en) * | 2014-10-08 | 2015-02-18 | 浙江明泰标准件有限公司 | A kind of screw rod of chek bolt |
| CN204688837U (en) * | 2015-05-15 | 2015-10-07 | 扬州北方空压机有限公司 | Quick unlatching manhole cover |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106586316A (en) * | 2017-02-08 | 2017-04-26 | 泰州市存中机械厂 | Integrated manhole assembly |
| CN107138109A (en) * | 2017-07-17 | 2017-09-08 | 衡阳屹顺化工有限公司 | A kind of manhole cover switching device of reactor |
| CN113335715A (en) * | 2021-06-23 | 2021-09-03 | 永康市康多机械科技有限公司 | Thermos cup subassembly |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150812 |
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| RJ01 | Rejection of invention patent application after publication |