CN107700768B - Reinforced structure of interior decoration stair of municipal garden building - Google Patents
Reinforced structure of interior decoration stair of municipal garden building Download PDFInfo
- Publication number
- CN107700768B CN107700768B CN201710807889.8A CN201710807889A CN107700768B CN 107700768 B CN107700768 B CN 107700768B CN 201710807889 A CN201710807889 A CN 201710807889A CN 107700768 B CN107700768 B CN 107700768B
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- Prior art keywords
- supporting
- framework
- plate
- connecting sleeve
- pedal
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/032—Spiral stairways supported by a central column
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/108—Treads of wood or with an upper layer of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/0209—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses a reinforced structure of an interior decorative stair of a municipal garden building, and belongs to the field of garden buildings. The pedal device comprises a vertical column fixedly arranged vertically and a plurality of pedal units spirally wound around the vertical column, wherein each pedal unit comprises a pedal body and a support frame for supporting the pedal body, the support frame comprises a connecting sleeve, two transversely-suspended supporting frameworks and a connecting framework, the connecting sleeve is sleeved on the vertical column, one end of each supporting framework is a fixed end, the other end of each supporting framework is a suspended end, the fixed ends of the two supporting frameworks are fixedly connected with one side of the outer wall of the connecting sleeve, the suspended ends of the two supporting frameworks are separated by a certain distance and are respectively fixedly connected with the two ends of the connecting framework, and an installation part for installing the pedal body is formed at the tops of the two supporting frameworks and the connecting framework.
Description
Technical Field
the invention relates to garden buildings, in particular to a reinforced structure of an interior decorative stair of a municipal garden building.
Background
With the increasing living standard of people, the houses with compound structures or attics are more and more popular. In such houses, residents need to use stairs when climbing attics or climbing the next floor, and the spiral stairs fixed on the upright posts are widely applied due to the characteristics of attractive appearance, convenience for going upstairs and downstairs and space saving.
Present common spiral stair include vertical fixed stand and spiral around locating the stand around and with a plurality of pedals of stand vertical fixation, the footboard is wooden flat board usually, the outside of dull and stereotyped when the people steps on the footboard rocks easily, give people the relatively poor or unsafe sense of stability when using stair, consequently many spiral stairs can set up a guardrail in the outside portion of footboard, but the setting of guardrail only makes things convenient for people's handrail when stair use, the condition that the footboard rocked is not actually solved, and the guardrail is generally installed on the footboard, consequently, the footboard area has still been reduced on the contrary, the usage space of stair has been reduced.
Disclosure of Invention
The invention aims to overcome the defects that the conventional common spiral staircase is easy to shake and poor in stability, and provides a reinforced structure of an internal decorative staircase of a municipal garden building, which can improve the stability of a spiral staircase tread and the structural strength of the staircase.
The technical purpose of the invention is realized by the following technical scheme:
The utility model provides a reinforced structure of interior decoration stair of municipal garden building, includes that vertical fixed stand and a plurality of spiral that set up are around locating a plurality of footboard units around the stand, characterized by, every the footboard unit include the footboard body and be used for supporting the support frame of footboard body, the support frame include connecting sleeve, two support frames and the connection frame of horizontal overhang, the connecting sleeve suit in the stand on, support frame's one end sets up to the stiff end, the other end is the overhang end, two support frames's stiff end all with connecting sleeve's outer wall one side fixed connection, two support frames's overhang end interval certain distance and respectively with connect the both ends fixed connection of frame, two support frames are formed with an installation department that is used for installing the footboard body with the top of being connected the skeleton.
adopt above-mentioned technical scheme, through with the wooden dull and stereotyped direct mode of fixing with the column mouting replacement of original support the mode of installation footboard body through the support frame among this technical scheme, only need to support the footboard body fixed mounting in the installation department promptly, improved the structural strength of footboard greatly, and the support frame constitutes through two support chassis and connection skeleton, support chassis and connecting sleeve fixed connection have effectively improved the condition that rotatory stair footboard rocked easily when using.
Preferably, the distance between the overhanging ends of the two supporting frameworks is greater than the distance between the two fixed ends, and the connecting framework is in the shape of an arc plate, so that a fan is formed between the two supporting frameworks and the connecting framework.
Adopt above-mentioned technical scheme, through forming fan-shaped structure with two support frameworks and connection skeleton, people are generally keeping away from the overhanging end department of stand in the position of stepping on the footboard moreover, have increased the usable floor area of footboard, improve people's security, make whole rotatory stair appearance pleasing to the eye because of forming fan-shaped structure simultaneously, decorative good.
Preferably, the support frame be steel section bar, including even side shield and the bearing board as an organic whole, two the bearing board level of support frame sets up relatively, two side shield slope settings, make two support frames and connect and form a undercut between the skeleton the installation department, the footboard body correspond inlay and adorn in the installation department.
Adopt above-mentioned technical scheme, through the support chassis that steel section made, and support chassis by side shield and layer board integrated into one piece, preparation simple to operate, simple structure makes footboard body and support chassis simple to operate, and stability is good through inlaying the footboard body in the installation department simultaneously.
Preferably, one side of the side baffle, which is far away from the bearing plate, is vertically provided with a damping side plate, the upper end side of the damping side plate is connected with the side baffle into a whole, the lower end side of the damping side plate is suspended downwards, and the end part of the damping side plate, which is close to the connecting sleeve, is welded to the outer wall of the connecting sleeve.
Adopt above-mentioned technical scheme, through setting up the shock attenuation curb plate, form an acute angle between shock attenuation curb plate and the side shield to when people's foot was stepped on the footboard, to keeping away from the part of connecting sleeve on the supporting framework and have certain decurrent pressure, because have an acute angle between shock attenuation curb plate and the side shield, played the shockproof effect of supporting framework and footboard, improved supporting framework and connecting sleeve's firm in connection simultaneously.
Preferably, the lower extreme side of shock attenuation curb plate an organic whole be connected with the vertical major arc board down of an opening, make major arc board bottom form an arc recess, the top of major arc board forms an arc arch, the major arc board is close to connecting sleeve's one end and connecting sleeve's outer wall welded fastening is connected.
Adopt above-mentioned technical scheme, when people's foot is stepped on the footboard, can keep away from connecting sleeve's part to the footboard and can produce decurrent pressure and ascending restoring force to make the footboard rock, through a shock attenuation curb plate an organic whole connection major arc board, especially the bottom is the arc recess, and the top is the bellied major arc board structure of arc, can effectively decompose and put down the power that produces from top to bottom when the footboard rocks, has improved the shockproof effect.
Preferably, one side of the supporting plate, which is far away from the side baffle, is provided with an upward flanging, and the bottom of the pedal body is provided with a groove corresponding to the flanging.
by adopting the technical scheme, the flanging is arranged on the bearing plate and is correspondingly embedded with the groove at the bottom of the pedal body, so that the pedal body is positioned when being arranged on the installation part, and the stability of the pedal is enhanced.
Preferably, the bottom of the bearing plate is vertically provided with a connecting reinforcing rib which is spaced from the damping side plate.
By adopting the technical scheme, the connecting reinforcing ribs are arranged at the bottom of the bearing plate, the length of the whole supporting framework in the vertical direction is increased, and the firmness of connection between the fixed end of the supporting framework and the connecting sleeve when a user steps on the pedal is further improved.
Preferably, a first protruding strip and a second protruding strip which are parallel up and down are arranged on one side face, far away from the damping side plate, of the connecting reinforcing rib.
Adopt above-mentioned technical scheme, through set up first sand grip and second sand grip on the lateral wall of connecting the strengthening rib, make and connect the strengthening rib and all improved structural strength in the vertical direction of atress and on the transverse direction.
Preferably, the upright post is a polygonal cylinder, the cross section of the connecting sleeve is a polygonal annular body corresponding to the polygonal cylinder of the upright post, and the connecting sleeves of the pedal units are fixedly sleeved on the upright post in sequence.
Adopt above-mentioned technical scheme, through setting up the stand into the polygon cylinder and replace current cylinder, played limiting displacement to the footboard in the circumferencial direction when using, correspond through the axial length direction sum with all connecting sleeve and the axial length direction of stand simultaneously, saved the fixed connection structure between connecting sleeve and the stand, only need during the installation with connecting sleeve suit in proper order to the stand on, and adjust the direction of footboard well and form helical structure, simple to operate promptly.
Furthermore, each side surface of the upright post is respectively provided with a limiting groove, the inner wall of the connecting sleeve is uniformly provided with a plurality of limiting bulges along the circumferential direction, and the limiting bulges are correspondingly embedded in the limiting grooves one by one.
By adopting the technical scheme, the connecting sleeve is further ensured to be firmly connected with the stand column by respectively arranging the plurality of corresponding nested limiting bulges and limiting grooves between the outer part of the stand column and the inner wall of the connecting sleeve.
In conclusion, the invention has the following beneficial effects: through setting the footboard to be supported by supporting framework, increased the overall structure intensity of footboard, improved spiral stair's installation firmness, improved the security of people when using spiral stair upstairs.
drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the pedal unit of the present invention;
FIG. 3 is an enlarged schematic view of a portion a of FIG. 2;
FIG. 4 is an enlarged schematic view of FIG. 2 at b;
FIG. 5 is an exploded view of the present invention between the column and the connecting sleeve;
FIG. 6 is a schematic view showing another aspect of the present invention, which mainly shows a structural view of the fixing bracket according to the present invention;
Fig. 7 is an installation diagram of the present invention, which is mainly used for showing the installation connection relationship between the openings of the present floor and the upper floor.
In the figure: 1. a column; 11. a limiting groove; 2. a pedal unit; 21. a connecting sleeve; 211. a limiting bulge; 22. a support framework; 221. a fixed end; 222. a cantilevered end; 223. a side dam; 224. a support plate; 225. flanging; 226. connecting reinforcing ribs; 2261. a first rib; 2262. a second convex strip; 2263. a V-shaped groove; 2264. a reinforcing groove; 227. a shock-absorbing side plate; 228. a major arc plate; 229. a triangular convex edge; 23. connecting the framework; 24. a pedal body; 241. a flat plate body; 2411. a linear groove; 242. connecting the flanging; 3. fixing the mounting seat; 4. fixing a bracket; 41. a second retaining ring; 42. a connecting rod; 43. a first retaining ring; 5. a ground surface; 6. the ground of the upper floor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
as shown in figures 1 and 6, the reinforced structure of the decorative stairs in the municipal garden buildings disclosed by the invention comprises a vertical column 1 which is vertically and fixedly arranged and a plurality of pedal units 2 which are spirally wound around the vertical column 1, wherein the bottom of the vertical column 1 is fixedly connected with a fixed mounting seat 3 and is fixedly mounted with the ground 5 through the fixed mounting seat 3, and the top of the vertical column 1 is fixedly mounted through a fixed support 4.
As shown in fig. 2, each pedal unit 2 includes a pedal body 24 and a support frame for supporting the pedal body 24, and the support frame includes a connecting sleeve 21, two support frames 22 suspended laterally, and a connecting frame 23.
As shown in fig. 5, the column 1 is an octagonal cylinder, the cross section of the connecting sleeve 21 is an octagonal ring body corresponding to the octagonal cylinder of the column 1, each side surface of the column 1 is provided with a T-shaped limiting groove 11 axially penetrating along the column 1, the inner wall of the connecting sleeve 21 is uniformly provided with eight T-shaped limiting protrusions 211 corresponding to the limiting grooves 11 along the circumferential direction, and when each connecting sleeve 21 is sequentially sleeved on the column 1, the limiting protrusions 211 are correspondingly embedded in the limiting grooves 11 to perform a circumferential limiting function.
as shown in fig. 2, the supporting frames 22 are steel sections, one end of each supporting frame is a fixed end 221, the other end of each supporting frame is an overhanging end 222, the fixed ends 221 of the two supporting frames 22 are respectively fixedly connected with two side surfaces of the outer wall of the connecting sleeve 21 through electric welding, the other side surface is further spaced between the two side surfaces of the outer wall of the connecting sleeve 21 connected with the fixed ends 221 of the two supporting frames 22, the two supporting frames 22 are transversely and outwardly overhanging at an angle, so that the distance between the overhanging ends 222 of the two supporting frames 22 is greater than the distance between the fixed ends 221 of the two supporting frames 22, the connecting frame 23 is an arc plate, and two ends of the connecting frame 23 are respectively fixedly connected with the overhanging ends 222 of the two supporting frames 22 through electric welding, so that a fan shape is formed between the two supporting frames 22 and the connecting frame 23.
As shown in fig. 3, each supporting frame 22 includes a side baffle 223 and a supporting plate 224 connected as a whole, the supporting plate 224 is horizontally disposed, the side baffle 223 is obliquely disposed, a lower side edge of the side baffle 223 is integrally connected with a side edge of the supporting plate 224, a higher side edge of the side baffle 223 is integrally connected with a damping side plate 227 which is vertically suspended downwards, a lower end of the damping side plate 227 is integrally connected with a major arc plate 228 with an opening facing downwards, an arc groove is formed at the bottom of the major arc plate 228, an arc protrusion is formed at the top of the major arc plate 228, and one end of the major arc plate 228 close to the connecting sleeve 21 is fixedly connected with the outer wall of the connecting sleeve 21 by welding.
The side edge of one side of the support plate 224 far away from the side baffle 223 is integrally connected with an upward convex flange 225, the lower end of the flange 225 extends downwards in a reverse direction to form a triangular convex edge 229, the bottom of the support plate 224 is integrally connected with a vertical downward connecting reinforcing rib 226, one side of the connecting reinforcing rib 226 far away from the shock absorption side plate 227 is provided with a first protruding strip 2261 and a second protruding strip 2262 which are parallel up and down, the cross section of the first protruding strip 2261 is rectangular, a linear reinforcing groove 2264 is formed between the first protruding strip 2261 and the triangular convex edge 229, the reinforcing groove has the structural strength of the support framework 22, the cross section of the second protruding strip 2262 is in a V shape with an opening facing the shock absorption side plate 227, so that a V-shaped groove 2263 is formed on the side surface of the connecting reinforcing rib 226 close to the shock absorption side plate 227, the direction of the notch of the V-shaped groove 2263 is opposite to the direction, thereby improving the structural strength and service life of the support frame 22.
As shown in fig. 2, when the fixing ends 221 of the two supporting frames 22 are fixedly connected to the outer wall of the connecting sleeve 21 by electric welding, the two supporting plates 224 are horizontally disposed opposite to each other, and a mounting portion that is recessed downward is formed between the side baffle 223, the supporting plates 224, the connecting frame 23 and the outer wall of the connecting sleeve 21 between the two fixing ends 221 of the two supporting frames 22.
As shown in fig. 3 and 4, the pedal unit 2 includes a wooden plate 241 corresponding to the shape of the mounting portion, two sides of the bottom of the plate 241 are respectively provided with a linear groove 2411 corresponding to the flanges 225 on the two supporting frames 22, and when the plate 241 is fitted on the mounting portion, the linear groove 2411 is correspondingly engaged with the flanges 225; two side edges of the flat plate body 241 are respectively and axially provided with downward connecting flanges 242, the connecting flanges 242 at two sides are respectively and correspondingly attached to the outer side surfaces of the shock absorption side edges of the two supporting frameworks 22, and the connecting flanges 242 are fixedly connected with the shock absorption side edges through a plurality of screws arranged at intervals.
Referring to fig. 6, the fixing bracket 4 includes a first fixing ring 43 and a second fixing ring 41 and four connecting rods 42 connected between the first fixing ring 43 and the second fixing ring 41, the first fixing ring 43 is fixedly sleeved on the top end of the column 1 and fixedly connected by welding, the second fixing ring 41 is correspondingly installed at the hole of the upper floor surface 6 and fixedly installed by uniformly distributed screws, the four connecting rods 42 are arranged between the first fixing ring 43 and the second fixing ring 41 at intervals along the circumferential direction, and two ends of the connecting rods 42 are respectively connected to the first fixing ring 43 and the second fixing ring 41 by welding.
As shown in fig. 7, when the present invention is used, the connecting sleeves 21 of the pedal units 2 are sequentially sleeved on the upright post 1 according to a rotation angle of 45 degrees, so that the pedal units 2 sequentially correspond to the side surfaces of the upright post 1, and the pedal units 2 form a spiral shape around the upright post 1, the fixed mounting base 3 at the bottom end of the upright post 1 is fixedly connected with the ground 5 through a plurality of screws, so that the upright post 1 is vertically and fixedly mounted, and the top end of the upright post 1 is fixedly mounted with the hole on the ground 6 of the upper floor through the fixed support 4, so that the whole rotary staircase has high stability.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a reinforced structure of interior decoration stair of municipal garden building, includes that vertical fixed stand and a plurality of spirals that set up are around locating a plurality of footboard units around the stand, its characterized in that: each pedal unit comprises a pedal body and a support frame for supporting the pedal body, the support frame comprises a connecting sleeve, two transversely overhanging supporting frameworks and a connecting framework, the connecting sleeve is sleeved on the upright column, the supporting frameworks are steel sections, one end of each supporting framework is a fixed end, the other end of each supporting framework is an overhanging end, the fixed ends of the two supporting frameworks are fixedly connected with the two side surfaces of the outer wall of the connecting sleeve through electric welding, and an installation part for installing the pedal body is formed at the top of each supporting framework and the top of each connecting framework; the two side surfaces of the outer wall of the connecting sleeve, which are connected with the fixed ends of the two supporting frameworks, are further spaced from each other by the other side surface, the two supporting frameworks are transversely and outwardly suspended at an angle, so that the distance between the suspended ends of the two supporting frameworks is greater than the distance between the fixed ends of the two supporting frameworks, the connecting framework is in an arc plate shape, and the two ends of the connecting framework are respectively fixedly connected with the suspended ends of the two supporting frameworks through electric welding, so that a fan shape is formed between the two supporting frameworks and the connecting framework; each supporting framework comprises a side baffle and a bearing plate which are connected into a whole, the bearing plate is horizontally arranged, the side baffle is obliquely arranged, the lower side edge of the side baffle is integrally connected with one side edge of the bearing plate, the higher side edge of the side baffle is integrally connected with a damping side plate which vertically and downwardly overhangs, the lower end of the damping side plate is integrally connected with a major arc plate with a vertically downward opening, an arc groove is formed at the bottom of the major arc plate, an arc bulge is formed at the top of the major arc plate, and one end of the major arc plate, close to the connecting sleeve, is fixedly connected with the outer wall of the connecting sleeve in a welding mode; the side edge of one side of the bearing plate, which is far away from the side baffle, is integrally connected with an upward raised flanging, the lower end of the flanging reversely extends downwards to form a triangular convex edge, the bottom of the bearing plate is integrally connected with a vertical downward connecting reinforcing rib, one side of the connecting reinforcing rib, which is far away from the damping side plate, is provided with a first protruding strip and a second protruding strip which are parallel up and down, the section of the first protruding strip is rectangular, a linear reinforcing groove is formed between the first protruding strip and the triangular convex edge, the reinforcing groove has the function of further increasing the structural strength of the supporting framework, the section of the second protruding strip is V-shaped with an opening facing the damping side plate, so that a V-shaped groove is formed on the side, which is close to the damping side plate, of the connecting; the top of stand is through a fixed bolster fixed mounting, the fixed bolster includes first solid fixed ring and the solid fixed ring of second and connects four connecting rods between first solid fixed ring and the solid fixed ring of second, the fixed suit of first fixed ring is on the top of stand and through welded fastening connection, the solid fixed ring of second correspondence is installed in the hole department on upper floor ground and through evenly distributed's screw fixed mounting, four connecting rods set up between first solid fixed ring and the solid fixed ring of second along circumferencial direction interval distance, the both ends of connecting rod are respectively through welded fastening in first solid fixed ring and the solid fixed ring of second.
2. The reinforced structure of interior decoration stair of municipal garden building according to claim 1, characterized in that: the distance between the overhanging ends (222) of the two supporting frameworks (22) is larger than the distance between the two fixing ends (221), the connecting framework (23) is in the shape of an arc plate, and a fan shape is formed between the two supporting frameworks (22) and the connecting framework (23).
3. The reinforced structure of interior decoration stair of municipal garden building according to claim 2, characterized in that: an upward flanging (225) is arranged on one side, away from the side baffle (223), of the supporting plate (224), and a groove corresponding to the flanging (225) is arranged at the bottom of the pedal body (24).
4. The reinforced structure of interior decoration stair of municipal garden building according to claim 3, characterized in that: the pedal unit is characterized in that the upright column (1) is a polygonal cylinder, the cross section of the connecting sleeve (21) is a polygonal annular body corresponding to the polygonal cylinder of the upright column (1), and the connecting sleeves (21) of the pedal units (2) are fixedly sleeved on the upright column (1) in sequence.
5. The reinforced structure of interior decoration stair of municipal garden building according to claim 4, characterized in that: each side surface of the upright post (1) is respectively provided with a limiting groove (11), the inner wall of the connecting sleeve (21) is uniformly provided with a plurality of limiting bulges (211) along the circumferential direction, and the limiting bulges (211) are correspondingly embedded in the limiting grooves (11) one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807889.8A CN107700768B (en) | 2017-09-08 | 2017-09-08 | Reinforced structure of interior decoration stair of municipal garden building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807889.8A CN107700768B (en) | 2017-09-08 | 2017-09-08 | Reinforced structure of interior decoration stair of municipal garden building |
Publications (2)
| Publication Number | Publication Date |
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| CN107700768A CN107700768A (en) | 2018-02-16 |
| CN107700768B true CN107700768B (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710807889.8A Active CN107700768B (en) | 2017-09-08 | 2017-09-08 | Reinforced structure of interior decoration stair of municipal garden building |
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| Country | Link |
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| CN (1) | CN107700768B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663996A (en) * | 2020-12-08 | 2021-04-16 | 彭宇昂 | A safe rotary ladder for municipal works construction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378862A (en) * | 1980-10-21 | 1983-04-05 | Modular Industries Ltd. | Portable spiral staircase |
| WO2000001902A1 (en) * | 1998-06-30 | 2000-01-13 | Stairframe Systems Inc. | Modular stairway system, method for erecting stairway and kit therefor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2521295Y (en) * | 2001-08-10 | 2002-11-20 | 李达 | Star shape prefabricated rotary stairway |
| CN2581588Y (en) * | 2002-07-12 | 2003-10-22 | 张健 | Combined rotary stairs |
| CN2828193Y (en) * | 2005-06-14 | 2006-10-18 | 荣特尔公司 | Stairway assembly |
| CN2889622Y (en) * | 2005-12-30 | 2007-04-18 | 郑金顺 | Improved plum-shape wrench |
| CN103628639B (en) * | 2012-08-30 | 2016-01-20 | 宁波市镇海捷登应用技术研究所 | A kind of spiral steel frame staircase and preparation method thereof |
| CN104499665B (en) * | 2014-12-24 | 2017-02-22 | 北京凯盛建材工程有限公司 | Through type spiral stair and arranging method thereof |
-
2017
- 2017-09-08 CN CN201710807889.8A patent/CN107700768B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378862A (en) * | 1980-10-21 | 1983-04-05 | Modular Industries Ltd. | Portable spiral staircase |
| WO2000001902A1 (en) * | 1998-06-30 | 2000-01-13 | Stairframe Systems Inc. | Modular stairway system, method for erecting stairway and kit therefor |
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| CN107700768A (en) | 2018-02-16 |
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Address after: No. 88, Hengjie West Road, Zhuangyuan Town, Longwan District, Wenzhou City, Zhejiang Province 325011 Patentee after: Zhejiang Heyuan Construction Co.,Ltd. Address before: No. 88, Hengjie West Road, Zhuangyuan Town, Longwan District, Wenzhou City, Zhejiang Province 325011 Patentee before: WENZHOU ZHENGLONG MUNICIPAL CONSTRUCTION CO.,LTD. |
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