CN114427304B - An assembled edge protection device for cast-in-place concrete stairs - Google Patents

Abstract

The invention discloses an assembled edge protection device for cast-in-situ concrete stairs, which comprises upright columns respectively arranged on the upper and lower platform slabs, and transfer uprights arranged on the rest platform of the stairs. Guardrail components are respectively arranged between the uprights along the extending direction of the step boards of the stairs. The guardrail components are respectively connected with the uprights and the transfer uprights. Assembling the connecting mechanism, a second assembling and connecting mechanism is arranged at the joints of the upright bar, the upper railing and the lower railing respectively. The invention has the advantages of simple structure, fast disassembly and assembly, stable connection, repeated use, convenient transportation, good practicability, and can meet the protection needs of stairs in different construction sites, and can be reused, and has great utilization value. It is a technical innovation in the field of edge protection of cast-in-situ concrete stairs.

Description

An assembled edge protection device for cast-in-place concrete stairs

technical field

The invention relates to the field of building facilities, in particular to an assembled edge protection device for cast-in-situ concrete stairs.

Background technique

With the rapid development of the country's market economy and the acceleration of urbanization, the construction of residential buildings, shopping malls, office buildings, hotels and other buildings in the city is indispensable. As we all know, as an indispensable structure in building construction, stairs are also the weakest part of the construction site where safety problems are most likely to occur. Nowadays, the safety of construction projects has become a key review item in the construction field. In order to ensure the personal safety of the personnel on the construction site, in the later stage of the main construction process, after the cast-in-place concrete stairs are poured, it is necessary to install the edge guardrail on the stairs. Generally, the edge guardrail structure mainly includes vertical bars and horizontal bars. During the construction of the guardrail, the vertical poles and crossbars are fixed by welding or connected by fasteners. In order to achieve the purpose of detachment and reduce costs, most of the commonly used border guardrails are steel pipes and fasteners.

CN212984409U discloses a detachable edge guardrail, comprising uprights and crossbars, the crossbars block the edge of the stairs, the uprights are connected to the crossbars at intervals and the crossbars are supported on the stairs, and the bottom ends of the uprights are provided with There is a connecting seat, the connecting seat includes a bottom plate and a connecting pipe fixedly connected to the bottom plate at one end, the bottom end of the vertical pole is inserted into the other end of the connecting pipe, the connecting pipe is a straight pipe or an elbow joint, and the connecting pipe is a straight pipe bottom plate The screw is connected to the stair platform at the bottom or top of the stair, and the connecting pipe is connected to the bottom plate screw of the elbow joint to be connected to the side of the stair or the stair platform at the corner of the stair; The connection kit is divided into a first connection kit, a second connection kit and a third connection kit.

CN211143811U discloses a telescopic stair edge protective railing, specifically related to the field of protective railings, including a railing and a mounting seat, the lower surface of the railing is provided with a groove, the inside of the groove is provided with a first sliding cylinder, and the railing The position corresponding to the first sliding cylinder on the outside is provided with a first butterfly bolt. The first butterfly bolt passes through the railing and is threadedly connected with the first sliding cylinder. The first sliding cylinder is far away from the other side of the first butterfly bolt. One side is connected with the railing by a pin. In the present invention, the first sliding tube and the sliding rod are provided, and the second sliding tube inside the first sliding tube will slide downward under the action of its own gravity, thereby extending its length. Under the action, it will slide down and further lengthen its length, making it suitable for the use of most of the stair edge enclosures of different heights. The connecting piece will be threaded with the fixing tube, so that the sliding rod is firmly fixed on the fixing tube. improve its stability.

CN208347336U discloses a detachable stair edge protection railing, including stairs, and the stairs also include first uprights, connecting cross bars, second uprights, third uprights, fourth uprights and horizontal bars, The stairs are connected with the first vertical rod, the connecting cross rod, the second vertical rod, the third vertical rod, the fourth vertical rod and the horizontal rod; the first vertical rod is provided with a bolt hole groove and a fixed chassis, so that The fixed chassis is provided with a first bolt, the first vertical rod is arranged on the left side of the upper end of the stairs, and is detachably connected by the fixed chassis, the first bolt and the stairs; the connecting cross bar is provided with a second bolt, A sleeve is arranged on the horizontal bar.

CN210659342U discloses a detachable stair edge protection railing, the first vertical rod, the second vertical rod, a plurality of transfer parts and cross bars; the first vertical rod and the second vertical rod are respectively arranged on the corresponding On the sides adjacent to two stair platforms; the transfer parts are respectively arranged on the first upright rod and the second upright rod; the cross bar is arranged on the first upright rod and the second upright rod between the upright bars, and the two ends of the cross bars are connected with the transition parts.

The above-mentioned stair border guardrail structure effectively guarantees the personal safety of construction personnel, and is currently the mainstream and commonly used border guard structure, but there are still some defects, such as the use of horizontal bars, vertical bars, fasteners or sleeve structures. Although the edge protection has high safety and can be detachable and reused, the number of horizontal bars, vertical bars, fasteners or sleeves is huge, and one person cannot complete the installation, and the installation process is more troublesome. The construction time is long, and the transportation of the crossbars, vertical poles and fasteners is inconvenient and easy to be lost. Only the crossbars are used for the protection structure. Although the number of vertical poles is reduced and the amount of fasteners or sleeves is reduced, the installation process It is relatively easy, and there is no need to drill holes on the step board to install the pole, but the protective effect is not good, and it is prone to safety hazards. The telescopic structure minimizes the number of crossbars, vertical poles, fasteners and other components, but it is heavy and requires the cooperation of two people for installation. The installation process is still cumbersome, and holes need to be drilled on the step board. To sum up, the current border protection structure still has the problems of many component connection structures, troublesome installation process, the need to drill holes on the step plate and poor protection effect. So how to reduce the production cost of the border guardrail, make the installation and disassembly more convenient, reduce the workload of workers and ensure a high safety protection effect without damaging the step board, has become an urgent need for technical personnel in the field of construction safety protection equipment solved problem.

Contents of the invention

Aiming at the deficiencies of the existing technology, the technical problem to be solved by the present invention is to provide a method to reduce the production cost of the border guardrail, to provide a more convenient installation and disassembly without damaging the step board, to reduce the workload of the workers and to ensure a higher Modular edge protection for cast-in-situ concrete stairs with high safety protection effect.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an assembled edge protection device for cast-in-place concrete stairs, including upright columns respectively arranged on the upper and lower platform slabs, and columns arranged on the rest platform of the stairs The transfer column on the upper column is provided with a guardrail assembly between the column and the transfer column along the extension direction of the stair tread. The guardrail assembly is connected with the column and the transfer column respectively. The guardrail assembly includes respectively The upper railing and the lower railing arranged on both sides of the step plate up and down, and a plurality of upright rails connected with the upper railing and the lower railing respectively arranged in sequence along the length direction of the upper railing and the lower railing. The upper railing and the lower railing include a rod body , both ends of the rod body are provided with spherical connecting parts for connecting with the upright column and the transfer column, and the near two ends of the rod body are respectively provided with sockets for connecting with the upright rod, along the axis direction of the rod body. The rod body is continuously provided with a guide limit groove connected with the two sockets, and a skirting board is arranged at the bottom of the vertical rod along the extending direction of the step board of the stairs, and a continuous skirting board is formed between adjacent skirting boards to protect both sides of the step board. As for the protective plate assembly, the joints of the upper railing, the lower railing and the upright post and the transfer post are respectively provided with a first assembly connection mechanism, and the joints of the upright rail, the upper railing, and the lower railing are respectively provided with a second assembly connection mechanism.

In the aforementioned assembled edge protection device for cast-in-situ concrete stairs, the column includes a first base fixedly connected with the upper and lower platform plates, and a column body arranged on the first base.

In the above-mentioned assembled edge protection device for cast-in-place concrete stairs, the transfer column includes a second base fixedly connected to the rest platform of the stairs, and a left base set on the second base connected to the upper and lower railings respectively. , Right column.

In the above-mentioned assembled edge protection device for cast-in-situ concrete stairs, the first assembled connection mechanism includes a first socket structure connected to the spherical connecting part opened on the column body, and the left and right columns respectively The second socket structure connected with the spherical connection part is opened, and the first and second socket structures both include a slot plugged with the spherical connection part of the upper railing, and a second socket plugged with the spherical connection part of the lower railing. An insertion hole, the column body and the left and right columns are respectively provided with a first guiding and limiting groove connected to the first insertion hole, the width of the first guiding and limiting groove is smaller than the diameter of the spherical connecting part.

In the above-mentioned assembled edge protection device for cast-in-place concrete stairs, the upright rod includes a upright rod body, and two connecting rods are respectively extended outwardly perpendicular to the upright rod body, and the ends of the two connecting rods are respectively provided with The jacks of the upper and lower railings and the second spherical connecting part matched with the guide and limit grooves, and the skirting board is arranged at the bottom of the pole body.

In the above-mentioned assembled edge protection device for cast-in-situ concrete stairs, the second assembled connection mechanism includes pressing mechanisms respectively arranged on the connecting rods for fixing the main body of the vertical rod 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.

In the above-mentioned assembled edge protection device for cast-in-situ concrete stairs, the pressing mechanism includes a pressing block, and a through hole movably connected with the connecting rod is provided on the pressing block, and the inner side of the pressing block The wall is provided with an inner concave part that conforms to the outer wall of the upper railing or the lower railing, and the surface of the inner concave part is covered with a rubber anti-skid layer. The locking screws are respectively arranged on the top and bottom of the pressing block and extended to the inner concave part. .

In the above-mentioned assembled edge protection device for cast-in-place concrete stairs, the skirting board includes a board body, and an adjusting rod connected to the body of the vertical rod is connected to the board body, and the body of the vertical rod is provided with a The pin hole connected with the adjusting rod, the vertical rod body and the adjusting rod are rotatably connected through the pin shaft.

The advantages of the present invention's assembled edge protection device for cast-in-situ concrete stairs are: the present invention subverts the traditional structure of the building's edge protection fence in the past and needs to punch holes on the stair treads to install columns and poles, causing the stair treads to be damaged. Disadvantages of destruction. Compared with the upper and lower railings that adopt the hanging connection method, compared with the traditional cumbersome way of connecting and fixing a large number of bolts and screws, the structure is simpler and the installation is more convenient, and the skirting board can also play the role of auxiliary support for the vertical rod. The problem of deformation of the upper and lower railings is avoided. The column, the transfer column and the column all adopt a plug-in connection structure. The first assembly connection mechanism can make the connection part a movable self-locking structure, which is more convenient for disassembly and assembly, and the structure is more stable. The setting of the pressing mechanism ensures the stability of the installation and connection between the upright bar and the upper and lower railings. The invention has the advantages of simple structure, fast disassembly and assembly, stable connection, repeated use, convenient transportation, good practicability, and can meet the protection needs of stairs in different construction sites, and can be reused, and has great utilization value. It is a technological innovation in the field of cast-in-place concrete staircase edge protection!

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural enlarged view of upper railing and lower railing;

Fig. 3 is a schematic structural view of the vertical rod and the second assembly connection mechanism;

Fig. 4 is the structural representation of column;

Figure 5 is a schematic structural view of the transfer column;

Fig. 6 is a partially enlarged view of part A in Fig. 3;

Fig. 7 is a schematic diagram of a partial connection structure between the second assembly connection mechanism and the upper railing;

Figure 8 is an enlarged view of the structure of the pressing mechanism;

Fig. 9 is a structural schematic diagram of the skirting board.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail;

As shown in Fig. 1, an assembled type edge protection device for cast-in-place concrete stairs includes columns 3 respectively arranged on the upper platform slab 1 and the lower platform slab 2, and a turntable arranged on the stair rest platform 4. Connect the column 5, between the column 3 and the transfer column 5, guardrail components 7 are respectively arranged along the step plate extension direction of the stairs 6, and the guardrail components 7 are connected with the column 3 and the transfer column 5 respectively.

As shown in Figures 2 and 3, the guardrail assembly 7 includes an upper railing 8 and a lower railing 9 which are successively arranged on both sides of the tread plate, and a plurality of rails which are arranged successively along the length direction of the upper railing 8 and the lower railing 9 respectively and The upright bar 10 that upper railing 8 and lower railing 9 are connected. Wherein, the upper railing 8 and the lower railing 9 have the same structure, and both include a rod body 11, and the two ends of the rod body 11 are provided with spherical connecting parts 12 for connecting with the column 3 and the transfer column 5. On the rod body 11, sockets 13 for connecting with the upright rod 10 are provided at the near two ends respectively, and guiding and limiting grooves 14 connected with the two sockets 13 are continuously provided on the rod body 11 along the axis direction of the rod body 11. In this embodiment, in order to ensure the firmness of disassembly and connection between the rod body 11 and the column 3 and the transfer column 5, the connection between the spherical connecting part 12 and the rod body 11 is connected by a connecting rod with a smaller diameter, and the connecting rod can be relatively easily connected. Carry out card connection with the column 3 and the transfer column 5. In order to reduce the manufacturing cost, the rod body 11 can be made of steel pipe. The pole 10 comprises a pole body 15, and two connecting rods 16 are respectively extended outwardly perpendicular to the pole body 15, and the ends of the two connecting rods 16 are provided with jacks 13 and guide holes respectively connected to the upper railing 8 and the lower railing 9. The second spherical connection part 17 matched with the limiting groove 14 . The pole body 15 and the connecting rod 16 can be fixed by welding or bolting, and the material can be made of steel pipe or steel bar. The length of connecting rod 16 can be adjusted according to actual stair protection requirements.

As shown in FIGS. 4 and 5 , the column 3 includes a first base 17 fixedly connected with the upper platform 1 or the lower platform 2 , and a column body 18 arranged on the first base 17 . The transfer column 5 includes a second base 19 fixedly connected to the stair rest platform 4 , and a left column 20 and a right column 21 arranged on the second base 19 and connected to the upper railing 8 and the lower railing 9 respectively. Anchor bolts 22 are installed on the first base 17 and the second base 19 to facilitate fixing to the ground. Column 3 and transfer column 5 can adopt present traditional column structure, and column body 18 can adopt steel pipe structure to make, and the structure of left column 20 of the present application, right column 21 is identical with column body 18, in order to connect the up and down two stairs Railing 8 and lower railing 9.

As shown in FIGS. 1 , 3 , 4 , 5 , 7 and 8 , a first assembly connection mechanism 23 is respectively provided at the joints of the upper railing 8 and the lower railing 9 with the column 3 and the transfer column 5 . The first assembly connection mechanism 23 comprises the first socket structure 24 connected with the spherical connection part 12 that is opened on the column body 18, and the second socket structure 24 that is connected with the spherical connection part 12 and is respectively opened on the left column 20 and the right column 21. jack structure25. Both the first socket structure 24 and the second socket structure 25 include a slot 26 plugged with the ball-shaped connecting part 12 of the upper railing 8, and a first socket 27 plugged with the ball-shaped connecting part 12 of the lower railing 9, The column body 18 , the left column 20 , and the right column 21 are respectively provided with a first guide limiting groove 28 connected to the first insertion hole 27 . In this embodiment, the column body 18, the left column 20 and the right column 21 are made of steel pipes, the slots 26 can communicate with the inner cavity of the steel pipe after being made, the spherical connecting part 12 is installed from the top of the steel pipe, and the spherical connecting part 12 enters the inner cavity Among them, the connecting rod on the rod body 11 can be directly clamped in the slot 26, realizing the limitation of the degree of freedom along the direction of the rod body 11. For the convenience of dismounting, the size of the slot 26 can be slightly larger than the diameter of the connecting rod. The structural setting and installation principle of the first insertion hole 27 and the first guiding and limiting groove 28 are the same as those of the slot 26 .

As shown in FIGS. 3 , 7 , and 8 , second assembling and connecting mechanisms 29 are respectively provided at the connections between the upright bar 10 and the upper railing 8 and the lower railing 9 . The second assembly connection mechanism 29 includes pressing mechanisms 30 respectively provided on the connecting rods 16 for fixing the upright body 15 with the upper railing 8 and the lower railing 9 , and the pressing mechanisms 30 are movably connected with the connecting rods 16 . Compression mechanism 30 comprises a compression block 31, offers a through hole 32 that is movably connected with connecting rod 16 on compression block 31, and the inner side wall 33 of compression block 31 is provided with an outer wall with upper railing 8 or lower railing 9 The inner concave portion 34 is conformally fitted, and the surface of the inner concave portion 34 is covered with a rubber anti-skid layer 35 . Locking screws 36 are arranged on the pressing block 31 , and the locking screws 36 are respectively arranged on the top and the bottom of the pressing block 31 and extend toward the inner recess 34 . Since the upper railing 8, the lower railing 9, the vertical rod 10 and the pressing block 31 are all made of metal, in order to effectively improve the firmness of the connection between the vertical rod 10 and the upper railing 8 and the lower railing 9, the rubber anti-skid layer 35 and the locking screw 36 The setting can make the pressing block 31 firmly fixed with the upper railing 8 and the lower railing 9 without slipping. The installation quantity of uprights 10 can be matched according to the length of concrete stairs 6 pouring. The uprights 10 can be slid and adjusted arbitrarily along the length direction of the upper railing 8 and the lower railing 9, so that the distance between adjacent uprights 10 can be adjusted arbitrarily. The purpose of safety protection can be effectively controlled artificially.

As shown in Figures 1, 3, 6, and 9, in order to improve the protective effect and prevent the construction workers from being injured by falling objects on the stairs, a skirting board 37 is arranged at the bottom of the vertical rod 10 along the extending direction of the step board of the staircase 6, and the skirting board 37 is located on the vertical The bottom of the rod body 15. A continuous protective plate assembly 38 for protecting both sides of the step plate is formed between adjacent skirting plates 37 . Skirting board 37 comprises a plate body 39, is connected with an adjusting rod 40 that is rotatably connected with the vertical rod body 15 on the plate body 39, offers the pin hole that is connected with the adjusting rod 40 on the vertical rod body 15, the vertical rod body 15 is connected with the adjustment rod body 15. The rod 40 is rotatably connected by a pin shaft 41 .

Of course, the above description is not a limitation to the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention shall belong to protection scope of the present invention.

Claims (5)

1. An assembled edge protection device for cast-in-situ concrete stairs, comprising uprights respectively arranged on the upper and lower platform slabs, and a transfer upright arranged on the stair rest platform, between the upright post and the transfer upright Guardrail assemblies are respectively arranged along the extending direction of the step boards of the stairs, and the guardrail assemblies are respectively connected with the columns and the transfer columns. Railings and lower railings, and a plurality of uprights respectively connected to the upper railings and lower railings arranged in sequence along the length direction of the upper and lower railings, the upper railings and lower railings include a rod body, and both ends of the rod body are arranged There are spherical connecting parts used to connect with the upright post and the transfer upright post. There are sockets for connecting with the upright rods at the near two ends of the rod body, and two sockets are continuously opened on the rod body along the axial direction of the rod body. The connected guide limit grooves are provided with skirting boards along the extending direction of the step boards at the bottom of the vertical rods, and a continuous protective board assembly for protecting both sides of the tread boards is formed between adjacent skirting boards. The upper railing, The joints between the lower railing and the upright and the transfer post are respectively provided with a first assembly connection mechanism, and the joints between the upright rail and the upper railing and the lower rail are respectively provided with a second assembly connection mechanism; Two connecting rods are respectively extended outwardly from the rod body, and second spherical connecting parts are arranged at the ends of the two connecting rods to cooperate with the jacks of the upper and lower railings and the guide limit groove respectively. the bottom of the bottom; the second assembly connection mechanism includes a compression mechanism respectively arranged on the connecting rod for fixing the vertical rod body with the upper railing and the lower railing, and the compression mechanism is movably connected with the connecting rod. Locking screws are arranged on the mechanism; the pressing mechanism includes a pressing block, and a through hole for movably connecting with the connecting rod is provided on the pressing block, and the inner side wall of the pressing block is provided with a The outer wall of the balustrade is fitted with an inner recess, and the surface of the inner recess is covered with a rubber anti-skid layer. The locking screws are respectively arranged on the top and bottom of the pressing block and extend toward the inner recess. 2. The assembled edge protection device for cast-in-situ concrete stairs according to claim 1, characterized in that: the column includes a first base fixedly connected with the upper and lower platform plates, and is located on the first base The upper body of the column. 3. The assembled edge protection device for cast-in-situ concrete stairs according to claim 2, characterized in that: the transfer column includes a second base fixedly connected with the rest platform of the stairs, and is arranged on the second base The upper left and right uprights are respectively connected with the upper and lower railings. 4. The assembled edge protection device for cast-in-situ concrete stairs according to claim 3, characterized in that: the first assembled connection mechanism includes a first plug connected to the spherical connection part provided on the column body. The hole structure, and the second socket structure connected with the spherical connecting part respectively opened on the left and right uprights, the first and second socket structures both include slots inserted with the spherical connecting part of the upper railing, and The first socket that is inserted into the spherical connecting part of the lower railing is respectively provided with a first guide limiting groove connected to the first socket on the column body and the left and right columns. The width is less than the diameter of the ball joint. 5. The assembled edge protection device for cast-in-situ concrete stairs according to claim 1, characterized in that: the skirting board includes a board body, and a board body is connected to a board body that is rotatably connected with the pole body. An adjustment rod, the body of the vertical rod is provided with a pin hole connected with the adjustment rod, and the body of the vertical rod and the adjustment rod are rotatably connected through a pin shaft.