CN205226357U - Manhole mechanism on high -tension apparatus barrel - Google Patents
Manhole mechanism on high -tension apparatus barrel Download PDFInfo
- Publication number
- CN205226357U CN205226357U CN201520947476.6U CN201520947476U CN205226357U CN 205226357 U CN205226357 U CN 205226357U CN 201520947476 U CN201520947476 U CN 201520947476U CN 205226357 U CN205226357 U CN 205226357U
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- China
- Prior art keywords
- manhole
- boss
- ring
- cover
- bolt
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a people's pore structure on sealed effectual, dismantlement, easy maintenance's the high -tension apparatus barrel, include: be provided with the manhole cover in the manhole boss, be provided with seal ring in the ring channel of the top outward flange of manhole cover, be provided with in the holding tank on the manhole boss inner wall and keep off the fender ring that the ring amalgamation formed by four bursts, the amalgamation seam that the burst kept off between the ring all is parallel to each other, and the mutual symmetry of homogeneous phase is encircled to radial relative every keeping off the burst, the card is equipped with and blocks the subassembly on the inner wall of fender ring, keep off the ring and press the outer end that keeps off at seal ring, the outer end of manhole cover is provided with a plurality of bolt holes, the outer end cover of manhole boss keeps off and pins down the apron, it is connected through bolt and lock nut between lapping with the manhole to pin down the apron, it enables the manhole cover and compresses tightly seal ring in advance the inboard of keep off leaning on keeping off the ring to tighten up every lock nut, under the high pressure effect in the equipment barrel, it is sealed each other between manhole cover and the manhole boss, still install the supplementary subassembly of uncapping on the manhole boss.
Description
Technical field
The utility model relates to high-tension apparatus technical field, is specifically related to the manhole mechanism on high-tension apparatus cylindrical shell.
Background technique
Manhole mechanism on traditional high-tension apparatus cylindrical shell comprises: seal the manhole boss of the annular of fixedly docking with the sidewall of the manhole in equipment barrel, manhole boss is installed with flange ring, flange ring is equipped with blind flange, sealing gasket is provided with between blind flange and flange ring, bolt between locking blind flange and flange ring, sealing gasket is pressed between blind flange and flange ring, thus blind flange sealing is covered tightly on manhole boss.Manhole mechanism on traditional high-tension apparatus cylindrical shell is fairly simple, but there is following defect: one, under the frequent fluctuation effect of high-tension apparatus inner barrel pressure and temperature, bolt between blind flange and flange ring easily produces loosening, thus causes the sealing between blind flange and flange ring unreliable; Two, the bolt between blind flange and flange ring needs to adopt M64 and above and all need to adopt hydraulicefficiency tightening, thus cause the fabricating cost of whole manhole mechanism high, and the dismounting of manhole mechanism, installation and maintenance is all very inconvenient.
Model utility content
The purpose of this utility model is: provide a kind of and seal reliable, dismounting, installation, maintenance and the use manhole mechanism all very easily on a kind of high-tension apparatus cylindrical shell.
For achieving the above object, the technical solution adopted in the utility model is: the manhole mechanism on a kind of high-tension apparatus cylindrical shell, comprise: seal the manhole boss of the annular of fixedly docking with the sidewall of the manhole in equipment barrel, manhole cover is provided with in manhole boss, the outward edge of manhole cover outer end is provided with a ring annular groove, seal washer is provided with in circular groove, seal washer can make to be formed between the inwall of manhole cover and manhole boss to seal, the inwall being positioned at the manhole boss outside seal washer offers the receiving groove that a circle is inwardly recessed, the tight block of baffle ring is in receiving groove, and baffle ring protrudes from receiving groove, seal washer pressure is kept off in circular groove by baffle ring, baffle ring is put together by four pieces of burst baffle rings, the split seam formed between four pieces of burst baffle rings is parallel mutually, often pair of burst baffle ring is diametrically symmetrical mutually, the inwall of the baffle ring be put together by four pieces of burst baffle rings is arranged with the barrier assembly that four pieces of burst baffle rings can be stoped to deviate from receiving groove, the outer end of manhole cover is provided with some bolts hole, the outer end cap gear of manhole boss pins down cover plate, pin down cover plate is provided with and somely one to one through hole is installed with the bolt hole on manhole cover, in each bolt hole, equal screw threads for fastening has a bolt, the top of every root bolt is all stretched out from the installation through hole of correspondence, bolt outside each installation through hole is provided with locking nut, the equal block of each locking nut is pining down on cover plate, tightening up each locking nut can make manhole cover seal washer be compressed in advance the inner side keeping off and lean against baffle ring, under the effect of equipment barrel internal high pressure, seal washer press seal gear is leaned against the inner side of baffle ring thus makes mutually to seal between manhole cover and manhole boss by manhole cover, manhole boss is also provided with the auxiliary assembly of uncapping for coordinating manhole cover to open.
Further, manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, described barrier assembly comprises: the support ring of a block on baffle ring inwall, support ring offers a gap, the support ring at gap two ends is respectively arranged with a pair connecting plate, be connected with an adjusting nut by an adjusting bolt between a pair connecting plate, tightening adjusting nut can make gap spacing reduce, and unscrews adjusting nut and gap spacing can be made to increase.
Further, manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, described auxiliary assembly of uncapping comprises: dwang, dwang comprises construction section and lever piece, construction section dwang and lever piece dwang are mutually vertical to be arranged and circular arc gentle transition, construction section dwang is sleeved in mounting cylinder, and can rotate in mounting cylinder, detachably be fixedly connected with between mounting cylinder with manhole boss, lever piece dwang is positioned at the top of manhole boss, lever piece dwang is connected with handle adjustment barrel, the two ends of handle adjustment barrel are provided with a pair threaded adjusting bore, the Hand of spiral of a pair threaded adjusting bore internal thread is mutually contrary, the two ends of handle adjustment barrel connect a pair U bolt respectively by a pair threaded adjusting bore, one of them U-bolt is connected with lever piece dwang, another U bolt is bolted on be connected with one, the outer side wall at manhole cover top is provided with and the thread up hole of matching of bolting on, when manhole cover is drawn out to the oral area of manhole boss, handle with sleeve adjustment barrel can be locked in the thread up hole of manhole cover by bolting on, then rotating construction section dwang can remove the oral area of manhole cover from manhole boss.
Further, the manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, mounting cylinder is fixedly connected on arc connecting plate by mounting plate, and arc connecting plate is detachably fixedly connected on the outer side wall of manhole boss by bolt.
Further, manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, auxiliary assembly of uncapping also includes circular arc flap, circular arc flap comprises the circular arc mounting plate and circular arc dunnage that are mutually vertically fixedly connected with, radian and the manhole boss of circular arc mounting plate and circular arc dunnage match, circular arc mounting plate is detachably fixedly mounted on by bolt and is positioned on the exterior edge face of the manhole boss oral area immediately below bolting on, thus circular arc dunnage is connected mutually with the inwall of manhole boss, when manhole cover is drawn out to the mouth position place of manhole boss, manhole cover can be supported in circular arc dunnage.
Further, manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, the installation hanger used when every block burst baffle ring is all connected with dismounting, each installation hanger is provided with the tapped through hole for being connected with dismantling device, the sidewall of the manhole boss that every block burst baffle ring is corresponding is provided with a removal hole.
Further, the manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, described seal washer adopts graphite packing.
Further, the manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, the inner end in manhole boss is provided with the back-up ring for stopping manhole cover.
Further, the manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, pins down on cover plate and is provided with peep hole.
Further, the manhole mechanism on aforesaid a kind of high-tension apparatus cylindrical shell, wherein, has Sealing shield ring in the arranged outside of seal washer, and baffle ring pressure gear keeps off and being pressed in circular groove on Sealing shield ring thus by seal washer.
The utility model has the advantages that: manhole cover and the effect pining down the bolt and lock nut between cover plate are only to make to produce pretightening force between manhole cover and baffle ring, therefore the diameter of bolt can reduce greatly, the tightening tool that direct use is common, as spanner tightens, this not only greatly facilitates maintenance and the dismounting of manhole mechanism, also greatly reduces the cost that manhole mechanism makes, installs, safeguards; It is firm that high pressure in equipment barrel to make between the inwall of manhole cover and manhole boss mutually to seal, and the pressure in equipment barrel is larger, sealing effect is better, sealing between manhole cover and manhole boss can not be affected because of the fluctuation of temperature and pressure in equipment barrel, and this just substantially increases the sealing reliability of manhole mechanism; Auxiliary assembly of uncapping can be opened with greatly facilitating manhole cover in addition.
Accompanying drawing explanation
Fig. 1 is the structural representation of the manhole mechanism on a kind of high-tension apparatus cylindrical shell described in the utility model.
Fig. 2 is that in Fig. 1, A-A analyses and observe direction structure schematic diagram.
Fig. 3 is the structural representation of barrier assembly in Fig. 1.
Fig. 4 is the mounting structure schematic diagram of the auxiliary assembly of uncapping shown in the right apparent direction of Fig. 1.
Fig. 5 is the internal structure schematic diagram of handle adjustment barrel in Fig. 4.
Fig. 6 is the cross-sectional structure schematic diagram that in Fig. 4, circular arc flap B-B analyses and observe direction.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, manhole mechanism on a kind of high-tension apparatus cylindrical shell, comprise: seal the manhole boss 1 of the annular of fixedly docking with the sidewall of the manhole in equipment barrel, manhole cover 2 is provided with in manhole boss 1, inner end in manhole boss 1 is provided with the back-up ring 12 for stopping manhole cover 2, the outward edge of manhole cover 2 outer end is provided with a ring annular groove 21, is provided with seal washer 3 in circular groove 21, and seal washer 3 can make to be formed between the inwall of manhole cover and manhole boss 1 to seal.Because graphite packing has excellent rebound elasticity, the characteristic such as high temperature resistant, high pressure resistant, the seal washer 3 therefore in the present embodiment adopts graphite packing, has Sealing shield ring 31 in the arranged outside of graphite packing.The inwall being positioned at the manhole boss 1 outside seal washer 3 offers the receiving groove 11 that a circle is inwardly recessed, the tight block of baffle ring 4 is in receiving groove 11 and baffle ring 4 protrudes from receiving groove 11, and baffle ring 4 keeps off and is pressed on Sealing shield ring 31 thus is pressed in circular groove 21 by graphite packing gear.Baffle ring 4 is put together by four pieces of burst baffle rings 41, and the split seam 411 formed between four pieces of burst baffle rings 41 is parallel mutually, and often pair of burst baffle ring 41 is diametrically symmetrical mutually.Baffle ring 4 adopts the effect of burst split structure to be: be convenient to baffle ring 4 and be mounted in receiving groove 11 or easily split out from receiving groove 11.The block number of burst baffle ring 41 is too much unsuitable, usually be arranged to four pieces comparatively suitable, one piece of baffle ring 4 adopt the structure of four pieces of burst baffle rings 41 split effectively to guarantee the impacting force between baffle ring 4 and sealing gasket 3 is evenly distributed.For the ease of dismounting in the present embodiment, the installation hanger 42 with using when every block burst baffle ring 41 is all connected with dismounting, each installation hanger 42 is provided with the tapped through hole 421 for being connected with dismantling device.In addition, for the ease of the dismounting of four pieces of burst baffle rings 41, the sidewall of the manhole boss 1 of every block burst baffle ring 41 correspondence is provided with dismounting through hole 110, during dismounting burst baffle ring 41, by extracting tool as thin iron staff, stretch to from dismounting through hole 110 and conflict on burst baffle ring 41, then inwardly knock thin iron staff and just burst baffle ring 41 can be pounded out from receiving groove 11, so just can very easily burst baffle ring 41 be taken apart from receiving groove 11.
The inwall of the baffle ring 4 be put together by four pieces of burst baffle rings 41 is arranged with the barrier assembly 13 that four pieces of burst baffle rings 41 can be stoped to deviate from receiving groove 11, as shown in Figure 3, barrier assembly 13 described in the present embodiment comprises: the support ring 5 of a block on baffle ring 4 inwall, support ring 5 offers a gap 51, the support ring 5 at gap 51 two ends is provided with a pair connecting plate 6, be connected with an adjusting nut 8 by an adjusting bolt 7 between a pair connecting plate 6, tightening adjusting nut 8 can make gap 51 spacing reduce, unscrewing adjusting nut 8 can make gap 51 spacing increase.The spacing of gap 51 is larger, support ring 5 larger to the tension force of baffle ring 4; The spacing of gap 51 is less, and the tension force of support ring 5 pairs of baffle rings 4 is less.In actual using process, tension force between support ring 5 and baffle ring 4 inwall can be regulated by regulating the spacing size of gap 51.
The outer end of manhole cover 2 is provided with some bolts hole 22, the outer end cap gear of manhole boss 2 pins down cover plate 9, pin down cover plate 9 is provided with and somely one to one through hole 91 is installed with the bolt hole 22 on manhole cover 2, for the ease of observing the inside of manhole boss 1, pining down in the present embodiment on cover plate 9 and being provided with peep hole 92.In each bolt hole 22, equal screw threads for fastening has a bolt 10, the outer end of every root bolt 10 is all stretched out from the installation through hole 91 of correspondence, bolt 10 outside each installation through hole 91 is provided with locking nut 101, each locking nut 101 all block is pining down on cover plate 9, tightening up each locking nut 101 can make manhole cover 2 seal washer 3 be compressed in advance the inner side keeping off and lean against baffle ring 4, under the effect of equipment barrel internal high pressure, seal washer 3 is sealed compression gear and leans against the inner side of baffle ring 4 thus make mutually to seal between manhole cover 2 and manhole boss 1 by manhole cover 2.Because the effect of bolt 10 and locking nut 101 is only to make to produce pretightening force between manhole cover 2 and baffle ring 4, therefore the diameter of bolt 10 can reduce greatly, the tightening tool that direct use is common, as spanner tightens, this not only greatly facilitates the installation of manhole, maintenance and dismounting, also greatly reduces that manhole mechanism makes, the cost of installation and maintenance; It is firm that high pressure in equipment barrel to make between the inwall of manhole cover 2 and manhole boss 1 mutually to seal, and the pressure in equipment barrel is larger, sealing effect is better, sealing between manhole cover 2 and manhole boss 1 can not be affected because of the fluctuation of temperature and pressure in equipment barrel, and this just substantially increases the reliability of manhole mechanism sealing.
As shown in Fig. 4, Fig. 5, Fig. 6, manhole boss 1 is also provided with the auxiliary assembly of uncapping for coordinating manhole cover 2 to open.Auxiliary assembly of uncapping described in the present embodiment comprises: dwang 17, dwang 17 comprises construction section and lever piece, construction section dwang 171 is arranged with lever piece dwang 172 is mutually vertical, and circular arc gentle transition, construction section dwang 172 is sleeved in mounting cylinder 18, and can rotate in mounting cylinder 18, detachably be fixedly connected with between mounting cylinder 18 with manhole boss 1, detachable fixed connection structure in the present embodiment between mounting cylinder 18 and manhole boss 1 comprises: mounting cylinder 18 is fixedly connected on arc connecting plate 62 by mounting plate 61, arc connecting plate 62 is detachably fixedly connected on the outer side wall of manhole boss 1 by bolt.Lever piece dwang 171 is positioned at the top of manhole boss 1, lever piece dwang 171 is connected with handle adjustment barrel 19, the two ends of handle adjustment barrel 19 are provided with a pair threaded adjusting bore 191,192, the Hand of spiral of a pair threaded adjusting bore internal thread is mutually contrary, the two ends of handle adjustment barrel 19 connect a pair U bolt 50,51 respectively by a pair threaded adjusting bore, one of them U-bolt 50 is connected with lever piece dwang 171, and another U bolt 51 is bolted on 60 to be connected with one; The outer side wall at manhole cover 2 top is provided with and the 60 thread up holes of matching of bolting on, when manhole cover 2 is drawn out to the oral area of manhole boss 1, handle with sleeve adjustment barrel 19 60 can be locked in the thread up hole of manhole cover 2 by bolting on, and then rotating construction section dwang 172 can remove the oral area of manhole cover 2 from manhole boss 1.Dismantle to further facilitate manhole cover 2 in the present embodiment, auxiliary assembly of uncapping also includes circular arc flap 70, circular arc flap 70 comprises the circular arc mounting plate 701 and circular arc dunnage 702 that are mutually vertically fixedly connected with, radian and the manhole boss 1 of circular arc mounting plate 701 and circular arc dunnage 702 match, circular arc mounting plate 701 be detachably fixedly mounted on by bolt be positioned at manhole boss 1 oral area of bolting on immediately below 60 exterior edge face on, thus circular arc dunnage 702 is connected mutually with the inwall of manhole boss 1, when manhole cover 2 is drawn out to the mouth position place of manhole boss 1, manhole cover 2 can be supported in circular arc dunnage 702.The advantage that auxiliary arc connecting plate 62 of uncapping in assembly, circular arc flap 70 adopt bolt to be fixedly mounted on manhole boss 1 is: can be arranged on manhole boss 1 or from manhole boss 1 by auxiliary assembly of uncapping as required and disassemble, very convenient.
Claims (10)
1. the manhole mechanism on a high-tension apparatus cylindrical shell, comprise: seal the manhole boss of the annular of fixedly docking with the sidewall of the manhole in equipment barrel, it is characterized in that: in manhole boss, be provided with manhole cover, the outward edge of manhole cover outer end is provided with a ring annular groove, seal washer is provided with in circular groove, seal washer can make to be formed between the inwall of manhole cover and manhole boss to seal, the inwall being positioned at the manhole boss outside seal washer offers the receiving groove that a circle is inwardly recessed, the tight block of baffle ring is in receiving groove, and baffle ring protrudes from receiving groove, seal washer pressure is kept off in circular groove by baffle ring, baffle ring is put together by four pieces of burst baffle rings, the split seam formed between four pieces of burst baffle rings is parallel mutually, often pair of burst baffle ring is diametrically symmetrical mutually, the inwall of the baffle ring be put together by four pieces of burst baffle rings is arranged with the barrier assembly that four pieces of burst baffle rings can be stoped to deviate from receiving groove, the outer end of manhole cover is provided with some bolts hole, the outer end cap gear of manhole boss pins down cover plate, pin down cover plate is provided with and somely one to one through hole is installed with the bolt hole on manhole cover, in each bolt hole, equal screw threads for fastening has a bolt, the top of every root bolt is all stretched out from the installation through hole of correspondence, bolt outside each installation through hole is provided with locking nut, the equal block of each locking nut is pining down on cover plate, tightening up each locking nut can make manhole cover seal washer be compressed in advance the inner side keeping off and lean against baffle ring, under the effect of equipment barrel internal high pressure, seal washer press seal gear is leaned against the inner side of baffle ring thus makes mutually to seal between manhole cover and manhole boss by manhole cover, manhole boss is also provided with the auxiliary assembly of uncapping for coordinating manhole cover to open.
2. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 1, it is characterized in that: described barrier assembly comprises: the support ring of a block on baffle ring inwall, support ring offers a gap, the support ring at gap two ends is respectively arranged with a pair connecting plate, be connected with an adjusting nut by an adjusting bolt between a pair connecting plate, tightening adjusting nut can make gap spacing reduce, and unscrews adjusting nut and gap spacing can be made to increase.
3. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 1 and 2, it is characterized in that: described auxiliary assembly of uncapping comprises: dwang, dwang comprises construction section and lever piece, construction section dwang and lever piece dwang are mutually vertical to be arranged and circular arc gentle transition, construction section dwang is sleeved in mounting cylinder, and can rotate in mounting cylinder, detachably be fixedly connected with between mounting cylinder with manhole boss, lever piece dwang is positioned at the top of manhole boss, lever piece dwang is connected with handle adjustment barrel, the two ends of handle adjustment barrel are provided with a pair threaded adjusting bore, the Hand of spiral of a pair threaded adjusting bore internal thread is mutually contrary, the two ends of handle adjustment barrel connect a pair U bolt respectively by a pair threaded adjusting bore, one of them U-bolt is connected with lever piece dwang, another U bolt is bolted on be connected with one, the outer side wall at manhole cover top is provided with and the thread up hole of matching of bolting on, when manhole cover is drawn out to the oral area of manhole boss, handle with sleeve adjustment barrel can be locked in the thread up hole of manhole cover by bolting on, then rotating construction section dwang can remove the oral area of manhole cover from manhole boss.
4. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 3, is characterized in that: mounting cylinder is fixedly connected on arc connecting plate by mounting plate, and arc connecting plate is detachably fixedly connected on the outer side wall of manhole boss by bolt.
5. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 3, it is characterized in that: auxiliary assembly of uncapping also includes circular arc flap, circular arc flap comprises the circular arc mounting plate and circular arc dunnage that are mutually vertically fixedly connected with, radian and the manhole boss of circular arc mounting plate and circular arc dunnage match, circular arc mounting plate is detachably fixedly mounted on by bolt and is positioned on the exterior edge face of the manhole boss oral area immediately below bolting on, thus circular arc dunnage is connected mutually with the inwall of manhole boss, when manhole cover is drawn out to the mouth position place of manhole boss, manhole cover can be supported in circular arc dunnage.
6. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 1 and 2, it is characterized in that: the installation hanger used when every block burst baffle ring is all connected with dismounting, each installation hanger is provided with the tapped through hole for being connected with dismantling device, the sidewall of the manhole boss that every block burst baffle ring is corresponding is provided with a removal hole.
7. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: described seal washer adopts graphite packing.
8. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: the inner end in manhole boss is provided with the back-up ring for stopping manhole cover.
9. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: pin down on cover plate and be provided with peep hole.
10. the manhole mechanism on a kind of high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: have Sealing shield ring in the arranged outside of seal washer, and baffle ring pressure gear keeps off and being pressed in circular groove on Sealing shield ring thus by seal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947476.6U CN205226357U (en) | 2015-11-25 | 2015-11-25 | Manhole mechanism on high -tension apparatus barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947476.6U CN205226357U (en) | 2015-11-25 | 2015-11-25 | Manhole mechanism on high -tension apparatus barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226357U true CN205226357U (en) | 2016-05-11 |
Family
ID=55901424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520947476.6U Withdrawn - After Issue CN205226357U (en) | 2015-11-25 | 2015-11-25 | Manhole mechanism on high -tension apparatus barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226357U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299225A (en) * | 2015-11-25 | 2016-02-03 | 苏州天沃科技股份有限公司 | Manhole mechanism on high-pressure equipment barrel |
| CN106969141A (en) * | 2017-05-10 | 2017-07-21 | 南通普瑞特机械有限公司 | A kind of pressure vessel hand hole device |
| CN114607248A (en) * | 2022-03-14 | 2022-06-10 | 常州东方特钢有限公司 | Manhole access door |
-
2015
- 2015-11-25 CN CN201520947476.6U patent/CN205226357U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299225A (en) * | 2015-11-25 | 2016-02-03 | 苏州天沃科技股份有限公司 | Manhole mechanism on high-pressure equipment barrel |
| CN106969141A (en) * | 2017-05-10 | 2017-07-21 | 南通普瑞特机械有限公司 | A kind of pressure vessel hand hole device |
| CN114607248A (en) * | 2022-03-14 | 2022-06-10 | 常州东方特钢有限公司 | Manhole access door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170914 Address after: 215632, Linjiang Road, Changshan village, Nansha Town, Zhangjiagang, Jiangsu, Suzhou 1, China Patentee after: Chang Hua machine (Suzhou) heavy equipment Co., Ltd. Address before: Suzhou City, Jiangsu province Zhangjiagang 215631 gold town after Cheng Cheng Yang Road Suzhou tianwo Polytron Technologies Inc Patentee before: Suzhou Tian Wo Science and Technology Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160511 Effective date of abandoning: 20180710 |