CN114427304B - Assembled type edge protection device for cast-in-place concrete stairway - Google Patents
Assembled type edge protection device for cast-in-place concrete stairway Download PDFInfo
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- CN114427304B CN114427304B CN202210033300.4A CN202210033300A CN114427304B CN 114427304 B CN114427304 B CN 114427304B CN 202210033300 A CN202210033300 A CN 202210033300A CN 114427304 B CN114427304 B CN 114427304B
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- railing
- upright post
- rod
- stair
- rod body
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The application discloses an assembled limb protection device for a cast-in-place concrete stair, which comprises upright posts respectively arranged on an upper platform plate and a lower platform plate and a switching upright post arranged on a stair rest platform, wherein a guard rail component is respectively arranged between the upright posts and the switching upright post along the extending direction of a tread plate of the stair, the guard rail component is respectively connected with the upright posts and the switching upright post, first assembly connection mechanisms are respectively arranged at the connection positions of an upper railing and a lower railing and the upright posts and the switching upright posts, and second assembly connection mechanisms are respectively arranged at the connection positions of the upright posts and the upper railing and the lower railing. The application has the advantages of simple structure, quick assembly and disassembly, stable connection, repeated use and convenient transportation, has good practicability, can meet the protection requirements of the adjacent edges of the stairways on different building construction sites, can be repeatedly used, has great utilization value, and is a technical innovation in the field of the adjacent edge protection of the cast-in-place concrete stairway.
Description
Technical Field
The application relates to the field of building facilities, in particular to an assembled type edge protection device for cast-in-place concrete stairways.
Background
With the rapid development of national market economy and the acceleration of urban development, building construction of residences, markets, office buildings, hotels and the like in cities is indispensable. As is well known, stairs are indispensable structures in building construction, and are weak parts where safety problems are most likely to occur in building construction sites, and the safety problems of building engineering construction are becoming important inspection projects in the building field nowadays. In order to guarantee the personal safety of construction site personnel, after the cast-in-place concrete stair is poured and molded in the later stage of the main body construction process, the edge guard rail needs to be installed on the stair, and the structure of the general edge guard rail mainly comprises a vertical rod and a cross rod, and the vertical rod and the cross rod are connected by adopting welded fixing or fastening pieces in the process of constructing the guard rail, so that the purpose of disassembly is realized, the cost is reduced, and the common edge guard rail is mostly of a structure adopting steel pipe fastening pieces.
CN212984409U discloses a detachable edge guard rail, which comprises a vertical rod and a cross rod, wherein the cross rod is blocked at the edge of a stair, the vertical rod is connected with the cross rod at intervals and supports the cross rod on the stair, a connecting seat is arranged at the bottom end of the vertical rod, the connecting seat comprises a bottom plate and a connecting pipe with one end fixedly connected to the bottom plate, the bottom end of the vertical rod is inserted into the other end of the connecting pipe, the connecting pipe is a straight pipe or an elbow joint, the connecting pipe is a straight pipe, the bottom plate of the connecting pipe is connected to the stair platform at the bottom or the top of the stair through screws, and the connecting pipe is an elbow joint, and is connected to the side edge of the stair or the stair corner through screws; the connecting point of pole setting and horizontal pole is equipped with the connection external member, connects the external member and divide into first connection external member, second connection external member and third connection external member.
CN211143811U discloses a telescopic stair limb guard rail, concretely relates to guard rail field, including railing and mount pad, the railing lower surface is provided with the recess, the inside first smooth section of thick bamboo that is provided with of recess, the railing outside corresponds the position of first smooth section of thick bamboo and is provided with first butterfly bolt, first butterfly bolt run through the railing and with first smooth section of thick bamboo threaded connection, the opposite side that first butterfly bolt was kept away from to first smooth section of thick bamboo is connected with the railing through the round pin axle. According to the application, the first sliding cylinder and the sliding rod are arranged, the second sliding cylinder in the first sliding cylinder can slide downwards under the action of gravity, so that the length of the second sliding cylinder is extended, the sliding rod in the second sliding cylinder can slide downwards under the action of gravity, the length of the second sliding cylinder is further prolonged, the second sliding cylinder can adapt to the use of most stair edge enclosures with different heights, and the connecting piece is in threaded connection with the fixed cylinder, so that the sliding rod is firmly fixed on the fixed cylinder, and the stability of the second sliding cylinder is improved.
CN208347336U discloses a detachable stair edge guard rail, which comprises a stair, wherein the stair further comprises a first upright post, a connecting cross rod, a second upright post, a third upright post, a fourth upright post and a horizontal rod, and the stair is in fit connection with the first upright post, the connecting cross rod, the second upright post, the third upright post, the fourth upright post and the horizontal rod; the first vertical rod is provided with a bolt hole groove and a fixed chassis, the fixed chassis is provided with a first bolt, and the first vertical rod is arranged at the left side of the upper end of the stair and is detachably connected with the stair through the fixed chassis, the first bolt; the connecting cross rod is provided with a second bolt, and the horizontal rod is provided with a sleeve.
CN210659342U discloses a detachable stair edge guard rail, a first upright, a second upright, a plurality of adapting parts and a cross bar; the first vertical rod and the second vertical rod are respectively arranged on the side sides of two adjacent stair platforms; the switching component is respectively arranged on the first vertical rod and the second vertical rod; the cross rod is arranged between the first vertical rod and the second vertical rod, and two ends of the cross rod are connected with the switching part.
The stair edge protection fence structure effectively ensures personal safety of constructors, is also a main-stream and common edge protection structure at present, but has defects, such as edge protection of a cross rod, a vertical rod, a fastener or a sleeve structure, although the safety is higher, the purpose of detachable repeated use can be realized, the number of the cross rod, the vertical rod, the fastener or the sleeve is huge, one person cannot finish the installation, the installation process is troublesome, the installation construction time is longer, the cross rod and the vertical rod are inconvenient to transport and easy to lose with the fastener, only the structure of protecting by adopting the cross rod is adopted, the use amount of the fastener or the sleeve is reduced, the installation process is relatively easy, the installation of the vertical rod is not required to be perforated on a pedal, the protection effect is not good, and potential safety hazards are easy to appear. The telescopic structure is adopted, so that the number of parts such as cross bars, vertical rods, fasteners and the like is reduced to the greatest extent, but the weight is large, two persons are required to cooperate in installation, the installation process is still troublesome, and holes are required to be punched in the tread. In summary, the existing edge protection structure still has the problems of more component connection structures, troublesome installation process, need to punch holes on the tread and poor protection effect. How to reduce the production cost of the edge guard rail, and on the premise of not damaging the step plate, the installation and the disassembly are more convenient, the workload of workers is reduced, and the higher safety protection effect is ensured, so that the problem to be solved is a urgent need for technicians in the field of building safety protection equipment.
Disclosure of Invention
Aiming at the defects existing in the prior art, the application aims to provide the assembled type edge protection device for the cast-in-place concrete stair, which can reduce the production cost of the edge protection fence, is more convenient to install and detach on the premise of not damaging the tread, reduces the workload of workers and ensures higher safety protection effect.
In order to solve the technical problems, the application adopts the following technical scheme: the utility model provides an assembled face limit protection device for cast in situ concrete stair, includes the stand that sets up respectively on upper and lower landing plate to and set up the switching stand on stair rest platform, along the flier extending direction of stair be provided with the rail guard subassembly respectively between stand and switching stand, the rail guard subassembly is connected with stand and switching stand respectively, the rail guard subassembly is including locating last railing and the lower railing of flier both sides respectively from top to bottom in proper order, and along a plurality of pole setting that last railing and lower railing set gradually respectively with last railing and lower railing are connected, last railing and lower railing include a body of rod, all are provided with the ball connecting part that is used for linking to each other with stand and switching stand in the both ends of body of rod, offer respectively in the nearly both ends department of body of rod be used for with the jack that the pole setting is connected, offered in succession on the body of rod along the axis direction of rod and be connected guide limiting groove, be provided with the skirting along the flier extending direction of stair in the bottom of pole setting up, form a continuous guard plate subassembly that is used for protecting the flier both sides between the adjacent skirting, last railing and lower railing and the pole setting up respectively with the first stand, the upper railing and the second is connected with the stand and the setting up respectively.
The assembled type edge protection device for the cast-in-place concrete stairway comprises a first base fixedly connected with the upper platform plate and the lower platform plate, and a stand column body arranged on the first base.
The assembled type edge protection device for the cast-in-place concrete stairway comprises a second base fixedly connected with the stairway rest platform, and left and right stand columns which are arranged on the second base and respectively connected with the upper and lower railing.
The assembled type edge protection device for the cast-in-place concrete stairway comprises a first jack structure which is arranged on a stand column body and connected with a spherical connecting component, and a second jack structure which is respectively arranged on a left stand column and a right stand column and connected with the spherical connecting component, wherein the first jack structure and the second jack structure respectively comprise a slot which is spliced with the spherical connecting component of an upper railing and a first jack which is spliced with the spherical connecting component of a lower railing, first guide limit grooves which are respectively arranged on the stand column body, the left stand column and the right stand column and connected with the first jack are respectively arranged on the stand column body, and the width of each first guide limit groove is smaller than the diameter of the spherical connecting component.
The assembled type edge protection device for the cast-in-place concrete stairway comprises a vertical rod body, wherein two connecting rods are respectively and outwardly extended from the vertical rod body, second spherical connecting parts matched with insertion holes and guide limit grooves of an upper railing and a lower railing are respectively arranged at the end parts of the two connecting rods, and skirting boards are arranged at the bottom of the vertical rod body.
The assembled type edge protection device for the cast-in-place concrete stairway comprises the pressing mechanisms which are respectively arranged on the connecting rods and used for fixing the upright rod body with the upper railing and the lower railing, wherein the pressing mechanisms are movably connected with the connecting rods, and locking screws are arranged on the pressing mechanisms.
The assembled type edge protection device for the cast-in-place concrete stairway comprises a compression block, wherein a through hole movably connected with a connecting rod is formed in the compression block, an inner concave part matched with the outer wall of an upper railing or a lower railing in a copying manner is formed in the inner side wall of the compression block, a rubber anti-slip layer is covered on the surface of the inner concave part, and locking screws are respectively arranged at the top and the bottom of the compression block and extend towards the inner concave part.
The assembled type edge protection device for the cast-in-place concrete stairway comprises a plate body, wherein an adjusting rod which is rotationally connected with the upright rod body is connected to the plate body, a pin hole which is connected with the adjusting rod is formed in the upright rod body, and the upright rod body is rotationally connected with the adjusting rod through a pin shaft.
The assembled edge protection device for the cast-in-place concrete stairway has the advantages that: the application overcomes the defect that the stair tread is damaged due to the fact that the upright post and the upright post are required to be perforated and installed on the stair tread in the traditional building edge guard rail structure in the past. The vertical rod of the hanging type connection mode is adopted for the upper railing and the lower railing, compared with the complicated mode of fixing by the traditional bolt and screw threaded connection, the structure is simpler, the installation is more convenient, the skirting board can also play the role of supporting the vertical rod in an auxiliary manner, and the problem of deformation of the upper railing and the lower railing is avoided. The stand column, the switching stand column and the vertical rod all adopt plug-in type connection structures, the first assembly connection mechanism can enable the connection portion to be a movable self-locking structure, disassembly and assembly are more convenient, and the structure is more stable. The setting of hold-down mechanism has ensured the stability of pole setting and upper and lower railing installation connection. The application has simple structure, quick disassembly and assembly, stable connection, repeated use and convenient transportation, has good practicability, can meet the protection requirements of the adjacent edges of the stairways on different building construction sites, can be repeatedly used, has great utilization value, and is a technical innovation in the field of the adjacent edge protection of the cast-in-place concrete stairway!
Drawings
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is an enlarged view of the structure of the upper rail and the lower rail;
FIG. 3 is a schematic view of a structure of the pole and the second assembly connection mechanism;
FIG. 4 is a schematic structural view of a column;
FIG. 5 is a schematic view of the structure of the adapter column;
FIG. 6 is an enlarged view of a portion A of FIG. 3;
FIG. 7 is a schematic view of a partial connection of the second assembly connection mechanism to the upper rail;
FIG. 8 is an enlarged view of the structure of the pressing mechanism;
fig. 9 is a schematic view of the structure of the skirting board.
Detailed Description
The application will be described in further detail with reference to the accompanying drawings and specific examples;
as shown in fig. 1, an assembled type edge protection device for a cast-in-place concrete stair comprises an upright post 3 respectively arranged on an upper platform plate 1 and a lower platform plate 2, and a switching upright post 5 arranged on a stair rest platform 4, wherein a guard rail component 7 is respectively arranged between the upright post 3 and the switching upright post 5 along the extending direction of a tread plate of the stair 6, and the guard rail component 7 is respectively connected with the upright post 3 and the switching upright post 5.
As shown in fig. 2 and 3, the guard rail assembly 7 includes an upper rail 8 and a lower rail 9 which are disposed on both sides of the tread respectively in order, and a plurality of vertical rods 10 which are connected with the upper rail 8 and the lower rail 9 respectively and are disposed in order along the length direction of the upper rail 8 and the lower rail 9. Wherein, go up railing 8 and lower railing 9 structure the same, all include a body of rod 11, all be provided with at the both ends of body of rod 11 and be used for with stand 3 and the ball connecting part 12 that the switching stand 5 links to each other. The rod body 11 is provided with insertion holes 13 at the near two end parts for connecting with the vertical rod 10, and the rod body 11 is provided with guide limit grooves 14 connected with the two insertion holes 13 along the axial direction of the rod body 11. In this embodiment, in order to ensure the firmness of the disassembly and connection between the rod body 11 and the column 3 and the adapter column 5, the connection part between the spherical connecting component 12 and the rod body 11 is connected by a connecting rod with a smaller diameter, and the connecting rod can be relatively easily clamped with the column 3 and the adapter column 5. In order to reduce the manufacturing cost, the rod body 11 can be manufactured by adopting a steel pipe. The upright 10 comprises an upright body 15, two connecting rods 16 are respectively and outwardly extended and arranged perpendicular to the upright body 15, and second spherical connecting parts 17 respectively matched with the insertion holes 13 and the guide limit grooves 14 of the upper railing 8 and the lower railing 9 are arranged at the end parts of the two connecting rods 16. The upright rod body 15 and the connecting rod 16 can be fixed in a welding or bolting mode, and the materials can be made of steel pipes or steel bars and other structures. The length of the connecting rod 16 can be adjusted according to the actual stair protection requirements.
As shown in fig. 4 and 5, the upright 3 includes a first base 17 fixedly connected to the upper deck plate 1 or the lower deck plate 2, and an upright body 18 provided on the first base 17. The switching stand 5 includes the second base 19 with stair rest platform 4 fixed connection to and locate on the second base 19 respectively with last railing 8 and lower railing 9 link to each other left stand 20, right stand 21. Anchor bolts 22 for facilitating fixation with the ground are respectively mounted on the first base 17 and the second base 19. The upright post 3 and the switching upright post 5 can adopt the traditional upright post structure at present, the upright post body 18 can be manufactured by adopting a steel pipe structure, and the structures of the left upright post 20 and the right upright post 21 are the same as those of the upright post body 18, so as to connect the upper railing 8 and the lower railing 9 of the upper stair and the lower stair.
As shown in fig. 1, 3, 4, 5, 7 and 8, first assembly connection mechanisms 23 are respectively arranged at the connection positions of the upper railing 8 and the lower railing 9, the upright post 3 and the switching upright post 5. The first assembly connection mechanism 23 includes a first socket structure 24 provided on the column body 18 to be connected to the spherical connection member 12, and a second socket structure 25 provided on the left column 20 and the right column 21 to be connected to the spherical connection member 12, respectively. The first jack structure 24 and the second jack structure 25 respectively comprise a slot 26 which is spliced with the spherical connecting part 12 of the upper railing 8 and a first jack 27 which is spliced with the spherical connecting part 12 of the lower railing 9, the upright post body 18, the left upright post 20 and the right upright post 21 are respectively provided with a first guiding limit groove 28 which is connected with the first jack 27, and the width of the first guiding limit groove 28 is smaller than the diameter of the spherical connecting part 12. In this embodiment, the upright post body 18, the left upright post 20 and the right upright post 21 are made of steel pipes, the slot 26 is made and then communicated with the inner cavity of the steel pipes, the spherical connecting part 12 is installed from the top of the steel pipes, the spherical connecting part 12 enters the inner cavity, and the connecting rod on the rod body 11 can be directly clamped in the slot 26, so that the degree of freedom limiting along the direction of the rod body 11 is realized. For ease of assembly and disassembly, the size of the slot 26 may be slightly larger than the diameter of the connecting rod. The first insertion hole 27 and the first guiding and limiting groove 28 are arranged in the same structure and installation principle as the insertion groove 26.
As shown in fig. 3, 7 and 8, a second assembly connection mechanism 29 is provided at the connection between the upright 10 and the upper rail 8 and the lower rail 9, respectively. The second assembly connection mechanism 29 comprises a pressing mechanism 30 which is respectively arranged on the connecting rod 16 and used for fixing the upright rod body 15 with the upper railing 8 and the lower railing 9, and the pressing mechanism 30 is movably connected with the connecting rod 16. The pressing mechanism 30 comprises a pressing block 31, a through hole 32 movably connected with the connecting rod 16 is formed in the pressing block 31, an inner concave portion 34 matched with the outer wall of the upper railing 8 or the lower railing 9 in a copying mode is formed in the inner side wall 33 of the pressing block 31, and a rubber anti-slip layer 35 is covered on the surface of the inner concave portion 34. The pressing block 31 is provided with locking screws 36, and the locking screws 36 are respectively arranged at the top and the bottom of the pressing block 31 and extend to the concave part 34. Because last railing 8, lower railing 9, pole setting 10 and compact heap 31 are metal material, for effectively improving the firmness that pole setting 10 and last railing 8 and lower railing 9 are connected, rubber skid resistant course 35 and locking screw 36's setting can make compact heap 31 and last railing 8, lower railing 9 firmly fixed, can not take place to slide. The installation quantity of the vertical rods 10 can be matched according to the casting length of the specific stairs 6, the vertical rods 10 can be arbitrarily slidably adjusted along the length direction of the upper railing 8 and the lower railing 9, the purpose that the distance between the adjacent vertical rods 10 can be arbitrarily adjusted is achieved, and the safety protection effect can be effectively controlled manually.
As shown in fig. 1, 3, 6 and 9, in order to improve the protection effect and prevent the falling objects from injuring constructors, a skirting board 37 is arranged at the bottom of the upright 10 along the extending direction of the tread of the stair 6, and the skirting board 37 is arranged at the bottom of the upright body 15. Adjacent skirting boards 37 form a continuous guard assembly 38 for protecting both sides of the tread board. Skirting board 37 includes a plate body 39, is connected with a regulation pole 40 of rotating connection with pole setting body 15 on plate body 39, has offered the pinhole of being connected with regulation pole 40 on pole setting body 15, pole setting body 15 and regulation pole 40 pass through round pin axle 41 and rotate and be connected.
It should be understood that the above description is not intended to limit the application to the particular embodiments disclosed, but to limit the application to the particular embodiments disclosed, and that various changes, modifications, additions and substitutions can be made by those skilled in the art without departing from the spirit and scope of the application.
Claims (5)
1. A guard rail subassembly is provided with respectively along the flier extending direction of stair between stand and switching stand, guard rail subassembly is connected its characterized in that with stand and switching stand respectively including setting up the stand on upper and lower landing plate respectively to and set up the switching stand on the stair rest platform: the guard rail assembly comprises an upper rail and a lower rail which are respectively arranged on two sides of a tread in sequence, and a plurality of vertical rods which are respectively connected with the upper rail and the lower rail and are sequentially arranged along the length direction of the upper rail and the lower rail, wherein the upper rail and the lower rail comprise a rod body, spherical connecting parts which are respectively connected with the vertical rods and the switching vertical rods are arranged at two ends of the rod body, insertion holes which are respectively used for being connected with the vertical rods are respectively arranged at the positions near the two ends of the rod body, guide limit grooves which are respectively connected with the two insertion holes are continuously arranged on the rod body along the axial direction of the rod body, skirting boards are arranged at the bottom of the vertical rods along the extending direction of the tread of the stair, a continuous guard plate assembly which is used for protecting two sides of the tread is formed between the adjacent skirting boards, and the connecting parts of the upper rail, the lower rail, the vertical rods, the switching vertical rods are respectively provided with first assembly connecting mechanisms, and the second assembly connecting mechanisms; the vertical rod comprises a vertical rod body, two connecting rods are respectively and outwardly extended and arranged perpendicular to the vertical rod body, second spherical connecting parts respectively matched with insertion holes of the upper railing and the lower railing and the guiding limit groove are arranged at the end parts of the two connecting rods, and the skirting board is arranged at the bottom of the vertical rod body; the second assembly connecting mechanism comprises a pressing mechanism which is respectively arranged on the connecting rod and used for fixing the upright rod body with the upper railing and the lower railing, the pressing mechanism is movably connected with the connecting rod, and a locking screw is arranged on the pressing mechanism; the pressing mechanism comprises a pressing block, a through hole movably connected with the connecting rod is formed in the pressing block, an inner concave portion matched with the outer wall of the upper railing or the lower railing in a copying mode is formed in the inner side wall of the pressing block, a rubber anti-slip layer is covered on the surface of the inner concave portion, and locking screws are respectively arranged at the top and the bottom of the pressing block and extend towards the inner concave portion.
2. The assembled edge protection device for cast-in-place concrete stairway according to claim 1, wherein: the upright post comprises a first base fixedly connected with the upper platform plate and the lower platform plate, and an upright post body arranged on the first base.
3. The assembled edge protection device for cast-in-place concrete stairway according to claim 2, wherein: the switching stand includes the second base with stair rest platform fixed connection to and locate on the second base respectively with upper and lower railing link to each other left and right stand.
4. The assembled edge protection device for cast-in-place concrete stairway according to claim 3, wherein: the first assembly connecting mechanism comprises a first jack structure which is arranged on the upright post body and is connected with the spherical connecting component, and a second jack structure which is respectively arranged on the left upright post and the right upright post and is connected with the spherical connecting component, wherein the first jack structure and the second jack structure both comprise a slot which is inserted with the spherical connecting component of the upper railing and a first jack which is inserted with the spherical connecting component of the lower railing, first guide limit grooves which are respectively arranged on the upright post body and the left upright post and the right upright post and are connected with the first jacks, and the width of each first guide limit groove is smaller than the diameter of the spherical connecting component.
5. The assembled edge protection device for cast-in-place concrete stairway according to claim 1, wherein: the skirting board comprises a board body, an adjusting rod which is rotationally connected with the upright rod body is connected to the board body, a pin hole which is connected with the adjusting rod is formed in the upright rod body, and the upright rod body is rotationally connected with the adjusting rod through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210033300.4A CN114427304B (en) | 2022-01-12 | 2022-01-12 | Assembled type edge protection device for cast-in-place concrete stairway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210033300.4A CN114427304B (en) | 2022-01-12 | 2022-01-12 | Assembled type edge protection device for cast-in-place concrete stairway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114427304A CN114427304A (en) | 2022-05-03 |
| CN114427304B true CN114427304B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210033300.4A Active CN114427304B (en) | 2022-01-12 | 2022-01-12 | Assembled type edge protection device for cast-in-place concrete stairway |
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| CN (1) | CN114427304B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809685A (en) * | 2022-05-09 | 2022-07-29 | 山西三建集团有限公司 | Method for installing and dismounting edge-facing guard rail of externally-mounted clamping assembly type concrete pouring stair |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2296743A1 (en) * | 1974-12-30 | 1976-07-30 | Froment Ets | Post for guard rail - consists of upright fixed to horizontal stone and right-angled locking-arm |
| KR20120132157A (en) * | 2011-05-27 | 2012-12-05 | 대지금속 주식회사 | Assembly stairs railing having angle control function |
| JP6220471B1 (en) * | 2017-03-30 | 2017-10-25 | 株式会社小坂工務店 | Fall prevention prop |
| WO2021184540A1 (en) * | 2020-03-18 | 2021-09-23 | 常州工程职业技术学院 | Fully prefabricated staircase system and assembly method therefor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205421982U (en) * | 2016-04-05 | 2016-08-03 | 赵忠亮 | Interim rail guard of design stair |
| CN211775959U (en) * | 2019-11-29 | 2020-10-27 | 中建八局第一建设有限公司 | Can have enough to meet need interim protector in vertical entrance to a cave of adjustable size |
| CN212154228U (en) * | 2020-04-26 | 2020-12-15 | 张秋玲 | Building safety device |
| CN212660816U (en) * | 2020-05-26 | 2021-03-09 | 刘澎伟 | Livestock breeding fence convenient to disassemble and assemble |
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2022
- 2022-01-12 CN CN202210033300.4A patent/CN114427304B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2296743A1 (en) * | 1974-12-30 | 1976-07-30 | Froment Ets | Post for guard rail - consists of upright fixed to horizontal stone and right-angled locking-arm |
| KR20120132157A (en) * | 2011-05-27 | 2012-12-05 | 대지금속 주식회사 | Assembly stairs railing having angle control function |
| JP6220471B1 (en) * | 2017-03-30 | 2017-10-25 | 株式会社小坂工務店 | Fall prevention prop |
| WO2021184540A1 (en) * | 2020-03-18 | 2021-09-23 | 常州工程职业技术学院 | Fully prefabricated staircase system and assembly method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114427304A (en) | 2022-05-03 |
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