CN105275276A - Opening device for inner side of hole lid of escape hole - Google Patents
Opening device for inner side of hole lid of escape hole Download PDFInfo
- Publication number
- CN105275276A CN105275276A CN201510810109.6A CN201510810109A CN105275276A CN 105275276 A CN105275276 A CN 105275276A CN 201510810109 A CN201510810109 A CN 201510810109A CN 105275276 A CN105275276 A CN 105275276A
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- port lid
- locking bar
- block piece
- dead bolt
- hole
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- 238000010276 construction Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 241000221931 Hypomyces rosellus Species 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000013439 planning Methods 0.000 description 1
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Abstract
The invention relates to ancillary facilities of municipal comprehensive pipe galleries and aims at providing an opening device capable of automatically opening a hole lid of an escape hole from the interior only by slightly touching the inner surface of the lid. The opening device for the inner side of the hole lid of the escape hole comprises a spring bolt part arranged on the inner side of the hole lid, and a lock bar driven by the spring bolt part to be inserted into a lock hole, the lock hole is located in a hole lid ring, and a return mechanism for driving the lock bar to retreat from the lock hole is arranged on the inner side of the hole lid. The opening device further comprises a fixing mechanism capable of fixing the spring bolt part, and an opening switch of the fixing mechanism is located on the inner side of the hole lid. After fixation of the fixing mechanism to the spring bolt part is released, the return mechanism is strong enough to drive the lock bar to retreat from the lock hole. The hole lid of the escape hole can be quickly opened from the interior for personnel escape; and the problem that after emergencies occur to the interior of a pipe gallery, the hole lid of the escape hole cannot be quickly opened, and casualties are caused is avoided.
Description
Technical field
The present invention relates to city integrated piping lane technology, be specifically related to the opening device of escape port lid in city integrated piping lane.
Background technology
Pipe gallery in Municipal engineering, also known as common trench.It implements unified planning, design, construction and maintenance, is built in Urban Underground for laying the public utility of municipal public use pipeline.Refer at Urban Underground for concentrating the public tunnel laying the municipal pipelines such as electric power, communication, radio and television, feedwater, draining, heating power, combustion gas.Pipe gallery has concurrently arranges drainage pipeline networks, power wiring pipe network, effect such as communication pipe network, heat supply gas transmission pipeline net work etc.Because it is once built, can multiple use be had, and can use for a long time; Be subject to the progressively attention of country and society.
The General Office of the State Council announces on August 10th, 2015 about the instruction advancing Urban Underground pipe gallery to build (Office of the State Council is sent out (2015) No. 61).Target is to the year two thousand twenty, builds up a collection ofly have the underground pipe gallery of international most advanced level and put into effect.Realize: repeatedly excavate ground " road slide fastener " problem will be improved significantly, pipeline safety level and ability of preventing and fighting natural adversities obviously promote, successive elimination major street cobweb formula trolley line, the target that urban ground view is clearly better.
But just because of the pipe network of pipe gallery internal placement, pipeline are more, thus construction, maintenance also more complicated and frequent.Once meet accident or accident, the staff of piping lane inside escapes very inconvenient, probably strengthens causality loss, even threatens human life in piping lane.In addition piping lane inner air flow is poor, leaks, fire, more easily increases the weight of consequence after explosion accident.
Summary of the invention
The object of this invention is to provide the opening device inside a kind of escape hole port lid being applicable to personnel's fast-escape in pipe gallery.
For achieving the above object, the technical solution adopted in the present invention is: the opening device inside a kind of hole port lid of escaping, comprising:
Be arranged on the dead bolt portion inside port lid, and driven by dead bolt portion and insert the locking bar in lockhole, lockhole is positioned on port lid circle or hole wall, arranges the return mechanism for driving locking bar to exit lockhole inside port lid;
Also comprising can by fixed mechanism fixing for dead bolt position, and the opening switch of fixed mechanism is positioned at inside port lid;
Described fixed mechanism remove to dead bolt portion fixing after, return mechanism is enough to drive locking bar to exit lockhole.
Preferably, described fixed mechanism comprises connecting rod relatively-stationary with dead bolt position, and when locking bar inserts lockhole, stop the block piece of link motion, block piece is driven by spring element and keeps the stop to connecting rod; Described opening switch provides power to remove block piece to the stop of connecting rod when opening.
Preferably, described dead bolt portion is for oval and be connected on lock core, and lock core is arranged on port lid, and connecting rod to be fixed on lock core and protruding by the side, long limit in dead bolt portion, and dead bolt portion and connecting rod can rotate around lock pin coaxial; Minor face place of dead bolt portion turns to and during end in contact, locking bar front end is headed into lockhole with in locking bar; Described locking bar, lockhole and return mechanism are symmetrical arranged two groups.
Preferably, described block piece front end is hook-shaped, and connecting rod is blocked in hook-shaped most advanced and sophisticated inner side, in the middle part of block piece by jointed shaft and port lid hinged, block piece rear end coordinates with the opening switch of pressing; Described spring element is arranged on block piece front end, and the spring identical with opening switch force direction, or be arranged on the block piece rear end spring contrary with opening switch force direction.
Preferably, fix an installing plate inside described port lid, described opening switch is installed on a mounting board; Described is fixed on mount pad with the jointed shaft matched in the middle part of block piece, and mount pad is fixed on the surface of installing plate towards port lid; Described spring element one end coordinates with block piece, and the other end is arranged on mount pad, from supplying link motion between mount pad with port lid inner surface.
Preferably, described return mechanism comprises the guide pipe be fixed on inside port lid, and the helical spring in guide pipe, and locking bar is through screw thread spring; And the shaft position of screw thread spring one end and locking bar is fixed, the other end and guide pipe position are fixed.
Preferably, described return mechanism comprises the guide pipe be fixed on inside port lid, and locking lever sleeve is located in guide pipe; Between described two locking bar the inners, screw thread spring is set.
Preferably, described port lid and port lid circle are articulated and connected, and described fixed mechanism is positioned at away from this articulated position place inside port lid, the arranged outside handle of fixed mechanism.
The present invention has following beneficial effect: opening device of the present invention, is specially adapted to city integrated piping lane, is assemblied in inside the port lids such as escape hole.When accidents such as breaking out of fire in pipe gallery, blast, leakages, or when there are other emergencies, piping lane internal staff can open opening switch, rapidly by open holes lid inside hole, then from escape hole fast-escape, avoids accident to cause casualties.Meanwhile, pressure release, the function such as ventilative inherently can be played in these escape holes, reduce leak, fire hazard.And in piping lane, during construction operation, also can open escape port lid at ordinary times, with these escape holes as gravity vent or construction manhole appendix etc.Be convenient to the inner side uncap from port lid; Escape rapidly from escape hole, solve city integrated piping lane inner space greatly, facility is many, and construction, Ren Yuanduo, risk symptoms node is many, the problem be prone to accidents.Improve the safety in utilization of pipe gallery, the promotion and application for pipe gallery create prerequisite and guarantee.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of button and associated components in Fig. 2;
Fig. 4 is the schematic diagram of the released state of structure shown in Fig. 2;
The another kind of embodiment schematic diagram that Fig. 5 is state shown in Fig. 1.
Detailed description of the invention
Shown in composition graphs 1,2, the opening device inside the port lid 1 being arranged on the escape hole place of city integrated piping lane.This device comprises: dead bolt portion 2, and is driven by dead bolt portion 2 and insert the locking bar 5 in lockhole 6, and lockhole 6 is positioned on port lid circle 8 or also can be positioned on the hole wall in escape hole, arranges the return mechanism for driving locking bar 5 to exit lockhole 6 inside port lid 1.Return mechanism generally includes the reciprocating guiding parts of guiding locking bar 5, and the elastomeric element such as spring and rubber band exits lockhole 6 for driving locking bar 5.Also comprise and by fixed mechanism fixing for position, dead bolt portion 2, fixed mechanism can have opening switch 3, opening and closing fixed mechanism for operator; Described fixed mechanism can be electromagnetic structure, also can be frame for movement, can also be the structure utilizing air pressure, hydraulic pressure.Described fixed mechanism remove to dead bolt portion 2 fixing after, return mechanism is enough to drive locking bar 5 to exit lockhole 6.
Because after locking bar 5 inserts lockhole 6, the screen resilience of return mechanism works all the time, and dead bolt portion 2 is the external force antagonism screen resiliences by fixed mechanism, maintenance locking bar 5 position.Therefore, as long as fixed mechanism is to the constraint release in dead bolt portion 2, dead bolt portion 2 will action, and remove the driving to locking bar 5, locking bar 5 unlocks.According to this workflow and technical thought, many concrete structures and mode is had to realize; Such as dead bolt portion 2 and locking bar 5 are all made up of the piston rod of cylinder, and fixed mechanism and return mechanism are made up of the source of the gas pipeline of control cylinder source of the gas work, gauge tap.Or dead bolt portion 2 and locking bar 5 are made up of electric pushrod.But its feature all must meet these parts to be all positioned at inside port lid 1, and opening switch 3 is positioned at the easy-operating position of hole operator.Be convenient to the inner side uncap from port lid 1; Escape rapidly from escape hole, solve city integrated piping lane inner space greatly, facility is many, and construction, Ren Yuanduo, risk symptoms node is many, the problem be prone to accidents.
Concrete preferred structure is such as shown in composition graphs 1-4: described fixed mechanism comprises connecting rod 22 relatively-stationary with position, dead bolt portion 2, and when locking bar 5 inserts lockhole 6, stop the block piece 31 that connecting rod 22 moves, block piece 31 is driven by spring element 32 and keeps the stop to connecting rod 22; Described opening switch 3 provides power to remove the stop of block piece 31 pairs of connecting rods 22 when opening.Coordinated with opening switch 3 and block piece 31, spring element 32 by connecting rod 22, be convenient to parts on the one hand and arrange assembling, connecting rod 22 can be utilized to play leverage simultaneously, operate more laborsaving.
Be more preferably, described dead bolt portion 2 is oval and is connected on lock core 21, and lock core 21 is arranged on port lid 1.Connecting rod 22 to be fixed on lock core 21 and protruding by the side, long limit in dead bolt portion 2, and dead bolt portion 2 and connecting rod 22 can around lock core 21 coaxial rotation.Minor face place of dead bolt portion 2 turns to and during end in contact, locking bar 5 front end is headed into lockhole 6 with in locking bar 5, that is to say that locking bar 5 is headed into lockhole 6 by dead bolt portion 2 length; Described locking bar 5, lockhole 6 and return mechanism are symmetrical arranged two groups.As shown in Fig. 1,2,4, under the effect of return mechanism, connecting rod 22 has and rotates clockwise trend shown in Fig. 1, but is stopped by block piece 31, and therefore locking bar 5 keeps the state inserting lockhole 6.Because during port lid locking lock, dead bolt portion 2 also can not be in absolute equilibrium state, so connecting rod 22 always has the trend of rotation, block piece 31 is blocked in its front of rotating; Or in order to make rotation trend stronger, the position arrangement that block piece 31 coordinates with connecting rod 22 can be had deflection angle position in dead bolt portion 2.When after the stop that block piece 31 is removed connecting rod 22 under opening switch 3 acts on, connecting rod 22 rotates clockwise end in contact in long limit, oval dead bolt portion 2 and locking bar 5, and now two locking bar 5 spacing reduce, simultaneously to the middle resilience of port lid 1, exit lockhole 6, can easily open port lid 1.
Fixed mechanism can be promote the mechanism of dead bolt portion 2 displacement along lock core 21 length direction, or the shelly coincide with dead bolt portion 2 profile, away from or rotate near dead bolt portion 2 and realize the control to dead bolt portion 2.Preferably as Fig. 3, described block piece 31 front end is hook-shaped, and connecting rod 22 is blocked in hook-shaped most advanced and sophisticated inner side, and hinged by jointed shaft 34 and port lid 1 in the middle part of block piece 31, block piece 31 rear end coordinates with the opening switch 3 of pressing; Describedly be arranged on the block piece 31 rear end spring contrary with opening switch 3 force direction, upwards press block piece 31 when namely opening switch 3 is work in Fig. 3, the spring element 32 that spring is formed pulls down for screw thread spring.Have jointed shaft 34 in the middle part of block piece 31, therefore left side downwards, and right side is inevitable upwards to keep reliably stopping connecting rod 22.Or spring element 32 is for being arranged on the block piece 31 front end spring identical with opening switch 3 force direction, the spring namely upwards pressed by unci or draw.
As Fig. 2, shown in, opening switch 3 upwards presses, and upwards, right-hand member moves downward block piece 31 left end.Locking bar 5 has the trend to port lid 1 intermediary movements, connecting rod 22 movement tendency with turn right (Fig. 1 shown in clockwise) corresponding to 2, dead bolt portion.When connecting rod 22 is left in the downward hook-shaped one end of block piece 31 right-hand member, then connecting rod 22 and dead bolt portion 2 rotate clockwise end in contact in shorter one end of size, dead bolt portion 2 and locking bar 5 immediately, and locking bar 5 realizes unlocking.Port lid 1 can be opened.When needing again to pin port lid 1, can from inner side pivot link 22, or from outside with key 10 rotational lock core 21, lock core 21 drivening rod 22 and dead bolt portion 2 are in blocking again.Because block piece 31 end is hook-shaped, no matter so locking time connecting rod 22 clockwise or rotate counterclockwise and can snap in locked position of coupler smoothly.
Can also fix an installing plate 9 (in Fig. 1,4, installing plate 9 is illustrated with double dot dash line) inside described port lid 1, installing plate 9 is such as welded with port lid 1 inner plate surface by riser by simple fixed form.Described pressing opening switch 3 is arranged on installing plate 9.Described is fixed on mount pad 33 with the jointed shaft 34 matched in the middle part of block piece 31, and mount pad 33 is fixed on the surface of installing plate 9 towards port lid 1.Described spring element 32 one end coordinates with block piece 31, and the other end is arranged on mount pad 33, moves between mount pad 33 with port lid 1 inner surface from for connecting rod 22.Mount pad 33 and block piece 31 can be avoided like this to interfere with the rotation of connecting rod 22, and the length dimension required precision of connecting rod 22 reduces, and processing is simple, uses also more convenient.
Described return mechanism can adopt various ways, and preferred embodiment mainly contains shown in Fig. 1-4: draw together the guide pipe 4 be fixed on inside port lid 1, and the helical spring 41 in guide pipe 4, and locking bar 5 is through screw thread spring 41; And the shaft position of screw thread spring 41 one end and locking bar 5 is fixed, the other end and guide pipe 4 position are fixed.Or as Fig. 5, described return mechanism comprises the guide pipe 4 be fixed on inside port lid 1, and locking bar 5 is sheathed in guide pipe 4; Arrange screw thread spring 41 between described two locking bar 5 the inners, this spline structure is simpler.General described port lid 1 is articulated and connected with port lid circle 8, and described fixed mechanism is positioned at away from this articulated position place inside port lid 1, the arranged outside handle 7 of fixed mechanism, is convenient to open.Be placed in port lid circle 8 if port lid 1 is nature, then fixed mechanism position arbitrarily can be arranged.
Claims (8)
1. an opening device of escaping inside the port lid of hole, is characterized in that: comprising:
Be arranged on the dead bolt portion (2) of port lid (1) inner side, and the locking bar (5) being driven by dead bolt portion (2) and insert in lockhole (6), lockhole (6) is positioned on port lid circle (8) or hole wall, and port lid (1) inner side arranges the return mechanism for driving locking bar (5) to exit lockhole (6);
Also comprising can by fixed mechanism fixing for dead bolt portion (2) position, and the opening switch (3) of fixed mechanism is positioned at port lid (1) inner side;
Described fixed mechanism remove to dead bolt portion (2) fixing after, return mechanism is enough to drive locking bar (5) to exit lockhole (6).
2. the opening device inside the port lid of escape hole according to claim 1, it is characterized in that: described fixed mechanism comprises and the relatively-stationary connecting rod in dead bolt portion (2) position (22), and when locking bar (5) inserts lockhole (6), stop the block piece (31) that connecting rod (22) moves, block piece (31) is driven by spring element (32) and keeps the stop to connecting rod (22); Described opening switch (3) provides power to remove block piece (31) to the stop of connecting rod (22) when opening.
3. the opening device inside the port lid of escape hole according to claim 2, it is characterized in that: described dead bolt portion (2) is oval and is connected on lock core (21), lock core (21) is arranged on port lid (1), it is upper and protruding by the side, long limit of dead bolt portion (2) that connecting rod (22) is fixed on lock core (21), and dead bolt portion (2) and connecting rod (22) can around lock core (21) coaxial rotation; Dead bolt portion (2) minor face place turns to, with during locking bar (5) interior end in contact, locking bar (5) front end is headed into lockhole (6); Described locking bar (5), lockhole (6) and return mechanism are symmetrical arranged two groups.
4. the opening device inside the port lid of escape hole according to claim 3, it is characterized in that: described block piece (31) front end is hook-shaped, connecting rod (22) is blocked in hook-shaped most advanced and sophisticated inner side, block piece (31) middle part is hinged by jointed shaft (34) and port lid (1), and block piece (31) rear end coordinates with the opening switch (3) of pressing; Described spring element (32) for being arranged on block piece (31) the front end spring identical with opening switch (3) force direction, or is arranged on block piece (31) the rear end spring contrary with opening switch (3) force direction.
5. the opening device inside the port lid of escape hole according to claim 4, it is characterized in that: an installing plate (9) is fixed in described port lid (1) inner side, and described opening switch (3) is arranged on installing plate (9); The described jointed shaft (34) matched with block piece (31) middle part is fixed on mount pad (33), and mount pad (33) is fixed on the surface of installing plate (9) towards port lid (1); Described spring element (32) one end coordinates with block piece (31), the other end is arranged on mount pad (33), moves between mount pad (33) with port lid (1) inner surface from for connecting rod (22).
6. according to the opening device inside the escape hole port lid in claim 1-5 described in any one, it is characterized in that: described return mechanism comprises the guide pipe (4) being fixed on port lid (1) inner side, and the helical spring (41) in guide pipe (4), locking bar (5) is through screw thread spring (41); And the shaft position of screw thread spring (41) one end and locking bar (5) is fixed, the other end and guide pipe (4) position are fixed.
7. according to the opening device inside the escape hole port lid in claim 1-5 described in any one, it is characterized in that: described return mechanism comprises the guide pipe (4) being fixed on port lid (1) inner side, and locking bar (5) is sheathed in guide pipe (4); Between described two locking bars (5) the inner, screw thread spring (41) is set.
8. the opening device inside the port lid of escape hole according to claim 7, it is characterized in that: described port lid (1) and port lid circle (8) are articulated and connected, described fixed mechanism is positioned at port lid (1) inner side away from this articulated position place, the arranged outside handle (7) of fixed mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810109.6A CN105275276B (en) | 2015-11-23 | 2015-11-23 | A kind of opening device on the inside of hole port lid of escaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810109.6A CN105275276B (en) | 2015-11-23 | 2015-11-23 | A kind of opening device on the inside of hole port lid of escaping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105275276A true CN105275276A (en) | 2016-01-27 |
| CN105275276B CN105275276B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510810109.6A Expired - Fee Related CN105275276B (en) | 2015-11-23 | 2015-11-23 | A kind of opening device on the inside of hole port lid of escaping |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499265A (en) * | 2016-12-16 | 2017-03-15 | 杨省三 | Escape port lid electromagnetic lock dedicated |
| CN106521910A (en) * | 2016-10-18 | 2017-03-22 | 宁波凯波集团有限公司 | Steam and dry iron evaporation cavity impurity collecting structure |
| CN106703551A (en) * | 2016-12-16 | 2017-05-24 | 杨省三 | Quick escape hole cover |
| CN106968274A (en) * | 2017-04-19 | 2017-07-21 | 杨省三 | A kind of antitheft escape intelligent well cover |
| CN107313462A (en) * | 2017-09-02 | 2017-11-03 | 孟祖钢 | A kind of new city road cellar well lid arrangement |
| CN107326938A (en) * | 2017-09-02 | 2017-11-07 | 孟祖钢 | A kind of city road inspection shaft lid arrangement |
| CN107354959A (en) * | 2017-09-01 | 2017-11-17 | 河北省衡水旭东通讯设备有限公司 | A kind of automatic open-close type hydraulic piping lane well lid |
| CN110714487A (en) * | 2019-10-30 | 2020-01-21 | 中国人民解放军63926部队 | Semi-open type anti-explosion well cover for emission site |
| CN111561037A (en) * | 2020-06-05 | 2020-08-21 | 潘洁明 | Inspection shaft that protecting effect is good |
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| CN103741721A (en) * | 2014-01-02 | 2014-04-23 | 上海大学 | Well lid device with mechanical lock |
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| CN205243199U (en) * | 2015-11-23 | 2016-05-18 | 周听昌 | Opening device for hole handhole door of fleing is inboard |
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| US9115479B2 (en) * | 2008-05-22 | 2015-08-25 | Mcgard Llc | Corrosion-resistant self-locking manhole cover |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521910A (en) * | 2016-10-18 | 2017-03-22 | 宁波凯波集团有限公司 | Steam and dry iron evaporation cavity impurity collecting structure |
| CN106521910B (en) * | 2016-10-18 | 2018-09-18 | 宁波凯波集团有限公司 | Steam and dry iron vaporization chamber impurity collection structure |
| CN106499265A (en) * | 2016-12-16 | 2017-03-15 | 杨省三 | Escape port lid electromagnetic lock dedicated |
| CN106703551A (en) * | 2016-12-16 | 2017-05-24 | 杨省三 | Quick escape hole cover |
| CN106968274A (en) * | 2017-04-19 | 2017-07-21 | 杨省三 | A kind of antitheft escape intelligent well cover |
| CN107354959A (en) * | 2017-09-01 | 2017-11-17 | 河北省衡水旭东通讯设备有限公司 | A kind of automatic open-close type hydraulic piping lane well lid |
| CN107313462A (en) * | 2017-09-02 | 2017-11-03 | 孟祖钢 | A kind of new city road cellar well lid arrangement |
| CN107326938A (en) * | 2017-09-02 | 2017-11-07 | 孟祖钢 | A kind of city road inspection shaft lid arrangement |
| CN110714487A (en) * | 2019-10-30 | 2020-01-21 | 中国人民解放军63926部队 | Semi-open type anti-explosion well cover for emission site |
| CN111561037A (en) * | 2020-06-05 | 2020-08-21 | 潘洁明 | Inspection shaft that protecting effect is good |
Also Published As
| Publication number | Publication date |
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| CN105275276B (en) | 2018-02-09 |
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Inventor after: Yang Shengsan Inventor before: Zhou Tingchang |
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Effective date of registration: 20170720 Address after: 3, No. 325000, unit 302, residential quarter, No. 2 Hongmei Road, Ouhai District, Wenzhou, Zhejiang Applicant after: Yang Shengsan Address before: Sunpa No. 1 building, 650000 Yunnan Province, Kunming city Wuhua District KELONG Road, 10 floor Applicant before: Zhou Tingchang |
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