CN112695887B - Building fire-fighting escape passage - Google Patents
Building fire-fighting escape passage Download PDFInfo
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- CN112695887B CN112695887B CN202110150729.7A CN202110150729A CN112695887B CN 112695887 B CN112695887 B CN 112695887B CN 202110150729 A CN202110150729 A CN 202110150729A CN 112695887 B CN112695887 B CN 112695887B
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- sliding
- rod
- box body
- rotating
- matching
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Special Wing (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention discloses a building fire-fighting escape passage, which comprises symmetrically arranged box bodies, wherein a matching inner cavity is arranged in each box body, a sealing device which adopts a connecting rod to drive the inner passage of each box body to realize two-layer sealing to prevent fire from entering is arranged in each matching inner cavity, one side of each box body is provided with a sliding box body which is arranged in a stacked mode, a box body inner cavity is arranged in each sliding box body, a passage forming device which enables the sliding box bodies to form a continuous passage after being stacked and unfolded is arranged between each box body and each sliding box body, equipment can form the continuous passages which are arranged on two sides of a building, is convenient for personnel to pass through and can effectively prevent the personnel from being influenced by the fire from invading, and a telescopic design is adopted, so that the occupied area of the equipment is smaller.
Description
Technical Field
The invention relates to the technical field of building fire-fighting escape equipment, in particular to a building fire-fighting escape passage.
Background
In the existing fire escape equipment, particularly, the fire escape equipment arranged between buildings is relatively less, and the corresponding fire escape equipment can be designed and manufactured only in the stage of building design generally, such as a building suspension corridor between adjacent buildings, and people in one building can be effectively and quickly guided into the adjacent buildings by using the building suspension corridor, but in this way, the corresponding manufacturing and design can be performed only in the stage of building design, but in the existing practical situation, most buildings do not have the above-mentioned passage, so that if people are emergently evacuated between two adjacent buildings through the fire escape suspension corridor, the emergency escape is quite difficult, and because the region between the two adjacent buildings can cause problems if the suspension corridor is directly suspended, such as affecting normal traffic or affecting lighting between the buildings, and the like, the existence of the factors makes fire escape of the building difficult.
Disclosure of Invention
The invention aims to provide a building fire-fighting escape passage which can solve the problems in the prior art.
The invention is realized by the following technical scheme: the building fire-fighting escape passage comprises symmetrically arranged box bodies, wherein a matching inner cavity is arranged in each box body, a sealing device which adopts a connecting rod to drive and realizes two-layer sealing of the inner passage of each box body so as to prevent fire from entering is arranged in each matching inner cavity, sliding box bodies which are arranged in a stacked mode are arranged on one side of each box body, a box body inner cavity is arranged in each sliding box body, and a passage forming device which enables the sliding box bodies to form a continuous passage after being stacked and unfolded is arranged between each box body and each sliding box body.
Further technical scheme, closing device including set up in the dead lever of intracavity in the cooperation, the articulated a rotation section of thick bamboo that is provided with in the cooperation intracavity, a rotation section of thick bamboo is rotated by motor drive, be provided with the buffering bullet chamber in the rotation section of thick bamboo, the gliding slide bar that is provided with the symmetry in the buffering bullet chamber, slide bar one side is provided with the cooperation dwang, the cooperation dwang with the articulated setting of slide bar, be provided with inside sliding chamber in the cooperation dwang, the gliding telescopic link that slides that is provided with in inside sliding chamber, the telescopic link downside that slides is provided with the flange of symmetry, the gliding running through of telescopic link that slides the cooperation intracavity is stretched into inside the box, be provided with the messenger in cooperation dwang and the rotation section of thick bamboo the telescopic link that slides and slide bar carry out the buffering subassembly that cushions.
According to the technical scheme, the buffer assembly comprises a side plate arranged on one side of the sliding rod, the side plate is connected with the buffer spring cavity in a sliding fit mode, a matching spring is elastically arranged between the side plate and the end wall of the buffer spring cavity, an internal spring is arranged in the internal sliding cavity, and the internal spring enables the end face of the sliding telescopic rod to be elastically connected with the end wall of the internal sliding cavity.
Further technical scheme, passageway forming device including set up in the side concave cavity in the box slides, be provided with the slide bar in the side concave cavity, it is adjacent the box that slides passes through slide bar and side concave cavity sliding fit connect, the slide bar with the box sliding fit that slides connects, box one side is articulated to be provided with the cylinder, and the outside the box one side that slides is provided with the side boss, the push rod of cylinder with the articulated setting of side boss, both sides the side boss offsets and sets up, be provided with between the side boss and be used for both sides the side boss carries out the locking subassembly of locking.
According to the technical scheme, the locking assembly comprises a ring inner cavity arranged on one side of the locking assembly in the side boss, the ring inner cavity is of an annular structure, a rotating ring is arranged in the end wall of the ring inner cavity in a rotating mode, an inner rotating rod is arranged in the end wall of the ring inner cavity in a rotating mode, a rotating disc is arranged on one side of the inner rotating rod, an inner meshing gear is meshed with the rotating ring, a threaded rod is arranged in the end wall of the other side of the ring inner cavity in a rotating mode, a placing hole is formed in the threaded rod, a spline rod is arranged in the placing hole in a sliding and rotating mode and fixed to the inner meshing gear, a pushing spring is arranged between the spline rod and the end wall of the placing hole in an elastic mode, an inner threaded hole is formed in the side boss of the other side of the locking assembly, and the inner threaded hole is connected with the threaded rod in a matched mode.
In a further technical scheme, the channel forming device comprises an outer side groove arranged in the sliding box body, a rotary driving motor is arranged in the end wall of the outer side groove, a rotary threaded rod is connected and arranged at one side of the rotary driving motor in a power way, the rotating threaded rod is connected with the end wall of the outer side groove in a rotating fit manner, the sliding box body is connected with the outer side groove in a sliding fit manner, the rotating threaded rod is in threaded fit connection with the sliding box body positioned on one side of the rotating threaded rod, one side of the box body is provided with a plurality of stacked telescopic rod matching rods which are connected in a sliding fit manner, the telescopic rod matching rod is hinged with the box body, one side of the sliding box body at the outermost side is provided with an abutting plate, the abutting plate is hinged with the telescopic rod matching rod, an electromagnet is arranged in the abutting plate, and the electromagnet abuts against the electromagnet.
The invention has the beneficial effects that:
the device has a simple structure, can form continuous channels arranged on two sides of a building, is convenient for personnel to pass through, can effectively prevent personnel from being affected by flame invasion, and adopts a telescopic design, so that the occupied area of the device is smaller.
When the equipment works, firstly, when the sliding box body is unfolded and then locked to form a continuous channel, the air cylinder can drive the sliding box body at the outermost side to slide after working, then the sliding box body is close to each other, so that the side bosses are arranged in an abutting mode, at the moment, the sliding box body slides in the side cavities and the sliding rods, a person enters the sliding box body to rotate the rotating disc, so that the rotating disc rotates to drive the internal meshing gear to rotate, the spline rod is connected with the threaded rod in a sliding and rotating matching mode, the threaded rod rotates to be screwed into the internal threaded hole to be connected with the internal threaded hole in a threaded matching mode, the pushing spring and the placing hole play a buffering elastic role, and the internal meshing gear and the rotating ring are arranged to aim at that when a plurality of internal rotating rods and threaded rods are arranged in the internal cavity of the ring, can play one through rotating inside dwang can pass through rotatory ring drive all the inside meshing gear rotates, will both sides the side boss carries out efficient locking, when personnel enter into the box intracavity, the swing is carried out after the rotary drum work, makes slide bar and curb plate drive after the buffering bullet chamber slides slide the slide bar swings, makes cooperation dwang and the slide telescopic link carry out alternative lift movement in the box, the purpose of design like this makes it to have the space of being separated by between the slide telescopic link, can make when personnel enter into equipment the slide telescopic link seal the regional area that communicates with the conflagration just can enter into the vestibule region, prevent that equipment both sides form the circulating air and cause the condition emergence of conflagration flame deflagration, and inside spring and cooperation spring play cushioning effect and personnel can pass through the pulling under emergency the protruding circumstances of conflagration flame deflagration area The plate and the sliding telescopic rod slide in the inner sliding cavity, so that the sliding telescopic rod is opened to emergently pass through.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the internal structure of a building fire escape passage according to the present invention;
FIG. 2 is an enlarged schematic view of the left half of the apparatus of FIG. 1;
FIG. 3 is a schematic view at A in FIG. 2;
FIG. 4 is a schematic view at B of FIG. 1;
FIG. 5 is a schematic view at C of FIG. 1;
FIG. 6 is a schematic view of another embodiment of the apparatus of FIG. 1;
FIG. 7 is a schematic view at D of FIG. 6;
FIG. 8 is a schematic view at E of FIG. 6;
FIG. 9 is a schematic view at F of FIG. 6;
in the figure, the cylinder 11, the box 12, the slide box 13, the box inner cavity 14, the fixing rod 21, the fitting inner cavity 22, the slide rod 23, the fitting rotating rod 24, the internal spring 25, the internal slide cavity 26, the slide telescopic rod 27, the convex plate 28, the rotating cylinder 31, the side plate 32, the buffer elastic cavity 33, the fitting spring 34, the sliding rod 41, the side concave cavity 42, the side boss 51, the fitting telescopic rod 52, the rotating ring 53, the rotating disk 54, the internal rotating rod 55, the internal meshing gear 56, the internal cavity 58, the internal threaded hole 59, the threaded rod 61, the pushing spring 62, the placing hole 63, the spline rod 64, the rotating threaded rod 71, the external slot 72, the rotating drive motor 73, the abutting plate 81, the telescopic rod fitting rod 82, and the electromagnet 83 are shown.
Detailed Description
As shown in fig. 1 to 9, the present invention is explained in detail, and for convenience of description, the following orientations are defined as follows: the building fire-fighting escape passage comprises symmetrically arranged box bodies 12, wherein a matching inner cavity 22 is arranged in the box body 12, a sealing device which adopts a connecting rod to drive the inner passage of the box body 12 to seal two layers to prevent fire seedlings from entering is arranged in the matching inner cavity 22, sliding box bodies 13 which are arranged in a stacked mode are arranged on one side of the box body 12, a box body inner cavity 14 is arranged in the sliding box bodies 13, and a passage forming device which enables the sliding box bodies 13 to form a continuous passage after being stacked and unfolded is arranged between the box body 12 and the sliding box bodies 13.
Advantageously, wherein the closing means comprise a fixation rod 21 arranged inside said cooperating cavity 22, a rotating cylinder 31 is hinged in the matching inner cavity 22, the rotating cylinder 31 is driven by a motor to rotate, a buffering bullet cavity 33 is arranged in the rotating cylinder 31, symmetrical sliding rods 23 are arranged in the buffering bullet cavity 33 in a sliding manner, one side of the sliding rod 23 is provided with a matching rotating rod 24, the matching rotating rod 24 is hinged with the sliding rod 23, an inner sliding cavity 26 is arranged in the matching rotating rod 24, a sliding telescopic rod 27 is arranged in the inner sliding cavity 26 in a sliding way, symmetrical convex plates 28 are arranged on the lower side of the sliding telescopic rod 27, the sliding telescopic rod 27 penetrates through the matching inner cavity 22 in a sliding mode and extends into the box body 12, and a buffer assembly for buffering the sliding telescopic rod 27 and the sliding rod 23 is arranged in the matching rotating rod 24 and the rotating cylinder 31.
Advantageously, the buffer assembly comprises a side plate 32 arranged on one side of the sliding rod 23, the side plate 32 is connected with the buffer spring cavity 33 in a sliding fit manner, a fitting spring 34 is elastically arranged between the side plate 32 and the end wall of the buffer spring cavity 33, an inner spring 25 is arranged in the inner sliding cavity 26, and the inner spring 25 elastically connects the end face of the sliding telescopic rod 27 with the end wall of the inner sliding cavity 26.
Beneficially, the channel forming device includes a side cavity 42 arranged in the sliding box 13, a sliding rod 41 is arranged in the side cavity 42, the adjacent sliding box 13 is connected with the side cavity 42 in a sliding fit manner through the sliding rod 41, the sliding rod 41 is connected with the sliding box 13 in a sliding fit manner, one side of the box 12 is hinged to be provided with the air cylinder 11, one side of the outermost sliding box 13 is provided with a side boss 51, a push rod of the air cylinder 11 is hinged to the side boss 51, the side bosses 51 on the two sides are abutted to each other, and a locking assembly for locking the side bosses 51 on the two sides is arranged between the side bosses 51.
Advantageously, wherein the locking assembly comprises an annular internal cavity 58 provided in said side boss 51 on one of the sides, the ring inner cavity 58 is of an annular structure, the rotating ring 53 is arranged on the end wall of the ring inner cavity 58 in a rotating mode, an inner rotating rod 55 is arranged in the end wall of the ring inner cavity 58 in a rotating mode, a rotating disc 54 is arranged on one side of the inner rotating rod 55, the internal meshing gear 56 is meshed with the rotating ring 53, a threaded rod 61 is rotatably arranged in the other end wall of the ring inner cavity 58, a placing hole 63 is arranged in the threaded rod 61, a spline rod 64 is arranged in the placing hole 63 in a sliding and rotating way, the spline rod 64 is fixed with the internal meshing gear 56, a pushing spring 62 is elastically arranged between the spline rod 64 and the end wall of the placing hole 63, an internal thread hole 59 is arranged in the side boss 51 on the other side, and the internal thread hole 59 is in threaded fit connection with the threaded rod 61.
Advantageously, the passage forming device comprises an outer slot 72 arranged in the sliding box body 13, a rotating driving motor 73 is arranged in the end wall of the outer slot 72, a rotating threaded rod 71 is arranged on one side of the rotating driving motor 73 in a power connection manner, the rotating threaded rod 71 is connected with the end wall of the outer slot 72 in a rotating fit manner, the sliding box body 13 is connected with the outer slot 72 in a sliding fit manner, the rotating threaded rod 71 is connected with the sliding box body 13 on one side of the rotating threaded rod 71 in a threaded fit manner, a plurality of stacked telescopic rod matching rods 82 are arranged on one side of the box body 12, the telescopic rod matching rods 82 are connected in a sliding fit manner, the telescopic rod matching rods 82 are hinged with the box body 12, a butting plate 81 is arranged on one side of the outermost sliding box body 13, and the butting plate 81 is hinged with the telescopic rod matching rods 82, an electromagnet 83 is arranged in the abutting plate 81, and the electromagnet 83 is abutted.
During initial state, above-mentioned device, subassembly and structure are in the out-of-service condition, and this equipment can form the continuous channel that sets up in building both sides and be convenient for personnel to pass through and can effectually prevent that personnel from being invaded by the flame and influencing, and adopts flexible design, makes equipment area less.
When the equipment is operated, firstly, when the sliding box body 13 is unfolded and then locked to form a continuous channel, the air cylinder 11 is operated to drive the outermost sliding box body 13 to slide, then the sliding box bodies are close to each other, so that the side bosses 51 are arranged in a butting manner, at this time, the sliding box body 13 slides in the side cavities 42 and the sliding rods 41, a person enters the sliding box body 13 to rotate the rotating disc 54, the rotating disc 54 rotates to drive the internal meshing gear 56 to rotate, the spline rod 64 is connected with the threaded rod 61 in a sliding and rotating fit manner, the threaded rod 61 rotates to be screwed into the internal threaded hole 59 to be in threaded fit connection with the internal threaded hole 59, the pushing spring 62 and the placing hole 63 play a buffering elastic role, and the internal meshing gear 56 and the rotating ring 53 are arranged for the purpose, when a plurality of internal rotating rods 55 and threaded rods 61 are arranged in the ring inner cavity 58, one internal rotating rod 55 can be rotated to drive all the internal engaging gears 56 to rotate through the rotating ring 53, so as to efficiently lock the side bosses 51 on both sides, when a person enters the box inner cavity 14, the rotating cylinder 31 swings after working, so that the sliding rod 23 and the side plate 32 drive the sliding rod 23 to swing after sliding the buffering elastic cavity 33, and the matching rotating rod 24 and the sliding telescopic rod 27 perform alternate lifting and lowering movement in the box 12, which is designed to make a space between the sliding telescopic rods 27, so that the person can enter a vestibule area when the sliding telescopic rod 27 closes an area communicated with a fire area, the condition that fire flame deflagration is caused to the formation circulated air of equipment both sides takes place for the prevention, and inside spring 25 and cooperation spring 34 play the cushioning effect and personnel can be through the pulling the flange 28 and the telescopic link 27 that slides in the inside sliding chamber 26 slides under emergency, make the telescopic link 27 that slides opens and carries out urgent passing through.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (1)
1. The building fire-fighting escape passage comprises symmetrically arranged box bodies, wherein a matching inner cavity is arranged in each box body, a sealing device which adopts a connecting rod to drive and realizes two-layer sealing of the inner passage of each box body so as to prevent fire from entering the box body is arranged in each matching inner cavity, sliding box bodies which are arranged in a stacked mode are arranged on one side of each box body, a box body inner cavity is arranged in each sliding box body, and a passage forming device which enables the sliding box bodies to form a continuous passage after being stacked and unfolded is arranged between each box body and each sliding box body;
the sealing device comprises a fixed rod arranged in the matching inner cavity, a rotating cylinder is hinged in the matching inner cavity and driven by a motor to rotate, a buffering bomb cavity is arranged in the rotating cylinder, symmetrical sliding rods are arranged in the buffering bomb cavity in a sliding mode, a matching rotating rod is arranged on one side of the sliding rod and hinged with the sliding rod, an internal sliding cavity is arranged in the matching rotating rod, a sliding telescopic rod is arranged in the internal sliding cavity in a sliding mode, symmetrical convex plates are arranged on the lower side of the sliding telescopic rod, the sliding telescopic rod penetrates through the matching inner cavity in a sliding mode and extends into the box body, and a buffering assembly for buffering the sliding telescopic rod and the sliding rod is arranged in the matching rotating cylinder and the matching rotating cylinder;
the buffer assembly comprises a side plate arranged on one side of the sliding rod, the side plate is connected with the buffer elastic cavity in a sliding fit manner, a fit spring is elastically arranged between the side plate and the end wall of the buffer elastic cavity, an internal spring is arranged in the internal sliding cavity, and the internal spring elastically connects the end surface of the sliding telescopic rod with the end wall of the internal sliding cavity;
the channel forming device comprises side concave cavities arranged in the sliding box bodies, sliding rods are arranged in the side concave cavities, the adjacent sliding box bodies are connected with the side concave cavities in a sliding fit mode through the sliding rods, the sliding rods are connected with the sliding box bodies in a sliding fit mode, one side of each box body is hinged with an air cylinder, one side of the sliding box body on the outermost side is provided with a side boss, a push rod of the air cylinder is hinged with the side bosses, the side bosses on the two sides are abutted, and a locking assembly used for locking the side bosses on the two sides is arranged between the side bosses;
the locking assembly comprises a ring inner cavity arranged in the side boss on one side, the ring inner cavity is of an annular structure, a rotating ring is arranged in the end wall of the ring inner cavity in a rotating mode, an internal rotating rod is arranged in the end wall of the ring inner cavity in a rotating mode, a rotating disc is arranged on one side of the internal rotating rod, an internal meshing gear is meshed with the rotating ring, a threaded rod is arranged in the end wall of the other side of the ring inner cavity in a rotating mode, a placing hole is formed in the threaded rod, a spline rod is arranged in the placing hole in a sliding and rotating mode, the spline rod is fixed with the internal meshing gear, a pushing spring is elastically arranged between the spline rod and the end wall of the placing hole, an internal threaded hole is formed in the side boss on the other side, and the internal threaded hole is in threaded fit connection with the threaded rod;
the channel forming device comprises an outer side groove arranged in the sliding box body, a rotating driving motor is arranged in the end wall of the outer side groove, a rotating threaded rod is arranged on one side of the rotating driving motor in a power connection mode, the rotating threaded rod is connected with the end wall of the outer side groove in a rotating fit mode, the sliding box body is connected with the outer side groove in a sliding fit mode, the rotating threaded rod is connected with a sliding box body in a threaded fit mode, a plurality of stacked telescopic rod matching rods are arranged on one side of the box body, the telescopic rod matching rods are connected with the sliding rod matching rods in a sliding fit mode, the telescopic rod matching rods are hinged to the box body, the outermost side of the sliding box body is provided with a butting plate, the butting plate is hinged to the telescopic rod matching rods, electromagnets are arranged in the butting plate, and the electromagnets are abutted against each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110150729.7A CN112695887B (en) | 2021-02-04 | 2021-02-04 | Building fire-fighting escape passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110150729.7A CN112695887B (en) | 2021-02-04 | 2021-02-04 | Building fire-fighting escape passage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112695887A CN112695887A (en) | 2021-04-23 |
| CN112695887B true CN112695887B (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110150729.7A Active CN112695887B (en) | 2021-02-04 | 2021-02-04 | Building fire-fighting escape passage |
Country Status (1)
| Country | Link |
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| CN (1) | CN112695887B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617549A (en) * | 2014-11-03 | 2016-06-01 | 沈阳创达技术交易市场有限公司 | Inter-high-rise escape overbridge made of carbon fiber composite material |
| KR20180070283A (en) * | 2016-12-16 | 2018-06-26 | 김기륜 | Emergency escape apparatus for building roof |
| CN209005084U (en) * | 2018-05-22 | 2019-06-21 | 四川化工职业技术学院 | A kind of skyscraper novel escape device |
| CN109176990A (en) * | 2018-07-03 | 2019-01-11 | 柳州通亿汽车配件制造有限公司 | A kind of production mould of cleaning easy to disassemble |
| CN111980449B (en) * | 2020-09-04 | 2021-09-14 | 中建新越建设工程有限公司 | Prefabricated house installation equipment |
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2021
- 2021-02-04 CN CN202110150729.7A patent/CN112695887B/en active Active
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| CN112695887A (en) | 2021-04-23 |
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Effective date of registration: 20211213 Address after: 210000 room 506-210801, fifth floor, No. 188, Xinglong Street, Jianye District, Nanjing, Jiangsu Province Applicant after: Jiangsu Modern Architectural Design Co.,Ltd. Address before: 311215 no.442, group 12, baishanchen community, Linpu Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: Zhang Huagang |
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