Adjustable temporary protection device for staircase

Abstract

The utility model discloses an adjustable temporary protection for a staircase, which belongs to the field of fabricated buildings and is formed by connecting a plurality of temporary protection units. Each temporary protection unit comprises a plurality of transverse keels, two vertical keels and two embedded parts; the embedded part is mounted on a stair platform; the end part of one end of each vertical keel can be mounted on the corresponding embedded part in a rotary fixing manner; each transverse keel is of a length-variable telescopic structure, one end of each transverse keel is hinged to one vertical keel, and the other end of each transverse keel is hinged to the other vertical keel; every two temporary protection units are hinged through a connecting piece B. The transverse keel is of a telescopic structure and can rotate around the connecting shaft of the transverse keel and the vertical keel, the vertical keel is installed in a rotating and fixing mode, and the two temporary protection units are hinged through the connecting piece, so that temporary protection is high in flexibility, labor saving, small in occupied space and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the field of assembled buildings, and in particular relates to an adjustable temporary protection for a staircase. Background Art

[0002] Stairs, as vertical traffic components connecting different floors in a building, are of great importance. At construction sites, stairs are not only a must for workers in their daily work, but also a key channel for them to escape in an emergency. Therefore, it is crucial to ensure the safety and stability of the stairs. In order to protect the safety of construction workers, temporary protective devices are usually used to protect the stairs at construction sites. Existing temporary staircase protection components are usually fixed and assembled by bolt fasteners. This assembly method is not only cumbersome and time-consuming, but also prone to improper installation or insufficient fastening. This not only affects the overall stability of the protective structure, but also reduces its efficiency.

[0003] A temporary staircase protection structure for building construction disclosed in Chinese patent CN209653450U includes a telescopic sleeve bracket, the outer wall of the telescopic sleeve bracket is provided with a bracket outer layer, and the inner layer of the bracket is provided inside the outer layer of the bracket, the side wall of the outer layer of the bracket is connected with a safety net, and the bottom of the telescopic sleeve bracket is provided with a thread, and the threaded side wall is connected with a threaded sleeve, and the side wall of the threaded sleeve is provided with a connecting rod, and the end of the connecting rod is connected with a fixed baffle, and the end of the sleeve telescopic bracket is provided with a fixed base, and the bottom of the fixed base is provided with a floor, and the floor is connected with stairs, and the side wall of the floor is provided with a bracket connecting rod. The staircase protection structure is a temporary staircase protection structure for construction. Although the fixed baffle made of rubber material can increase the friction coefficient between the protection structure and the floor, so that the fixed baffle and the floor are fixed more tightly, the protection structure is provided with two sets of installed protection nets, which makes the protection structure poor in stability, unable to adjust the angle, poor in variability, and cannot be applied to stairs of different sizes and heights. Utility Model Content

[0004] In view of this, the utility model provides an adjustable temporary protection for a stairwell, in which the transverse keel adopts a telescopic structure, the transverse keel can rotate around the connecting axis between the transverse keel and the vertical keel, the vertical keel can be rotated and fixed by the cooperation between the embedded parts and the vertical keel, and the two temporary protection units are hinged by connecting parts, so that the temporary protection has high flexibility, saves labor, occupies a small space, is easy to operate, can improve construction efficiency and shorten construction period.

[0005] The utility model is realized by the following technical solutions:

[0006] An adjustable temporary protection for a staircase, the temporary protection being composed of a plurality of temporary protection units connected together; each temporary protection unit comprising: a plurality of transverse keels, two vertical keels and two embedded parts;

[0007] The embedded parts are installed on the stair platform, and each embedded part is processed with a mounting hole a;

[0008] One end of each of the vertical keels can be installed in the installation hole a of the corresponding embedded part in a rotationally fixed manner; the two vertical keels of the same temporary protection unit are parallel to each other;

[0009] In each temporary protection unit, a plurality of transverse keels are installed between two vertical keels; each transverse keel is a telescopic structure with variable length, one end of the transverse keel is hinged to one vertical keel, and the other end of the transverse keel is hinged to another vertical keel; a plurality of transverse keels in the same temporary protection unit are parallel to each other;

[0010] Every two temporary protection units are hinged via a connecting piece B, and the two temporary protection units hinged via the connecting piece B can rotate relative to each other.

[0011] Further, each of the embedded parts is a cylindrical structure; one end of the cylindrical structure is embedded in the stair platform, and the other end of the cylindrical structure extends out of the stair platform; more than three limit plates are processed on the inner wall surface of the other end of the cylindrical structure, and the more than three limit plates are evenly arranged along the circumference of the inner wall surface; the more than three limit plates and the inner wall surface of the embedded part cooperate to form a mounting hole A, and the mounting hole A includes: a mounting hole B formed between the more than three limit plates and an inner hole of the cylindrical structure;

[0012] Furthermore, one end of the vertical keel is provided with a plurality of teeth along its circumference, and the cross-sectional shape of the one end of the vertical keel provided with the teeth is consistent with the shape of the mounting hole B. When one end of the vertical keel passes through the mounting hole B and is located in the inner hole of the cylindrical structure, the vertical keel is rotated, and more than three limit plates on the embedded parts limit the teeth of the vertical keel, thereby realizing rotational fixation.

[0013] Each of the transverse keels includes: transverse keel a and transverse keel b;

[0014] In each temporary protection unit, one end of the transverse keel a is hinged to a vertical keel, one end of the transverse keel b is sleeved to the other end of the transverse keel a, and the other end of the transverse keel b is hinged to another vertical keel;

[0015] A telescopic structure with variable length is formed between the transverse keel a and the transverse keel b.

[0016] Furthermore, each of the temporary protection units also includes a plurality of connecting members A;

[0017] The plurality of connectors A are divided into two groups of equal number, and the two groups of connectors A are respectively fixedly connected to two vertical keels; each group of connectors A is arranged along the length direction of each vertical keel;

[0018] Each of the connecting pieces A comprises: two iron sheets A and a screw;

[0019] The two iron sheets A on each of the connecting members A are arranged opposite to each other, one end of each of the iron sheets A is fixedly connected to the side of the vertical keel, and the other end of the iron sheet A extends out of the side of the vertical keel. A threaded hole is processed at the other end of the iron sheet A, and the two threaded holes on the two iron sheets A are coaxial;

[0020] The screw rods are screwed into the threaded holes of the two iron sheets A at the same time, and the two ends of the transverse keel are hinged to the two screw rods respectively.

[0021] Furthermore, the connecting member B is a hinge structure, comprising: two iron sheets B and a rotating shaft; one side edge of the two iron sheets B is hinged via the rotating shaft;

[0022] The other sides of the two iron sheets B are respectively fixedly connected to the two temporary protection units.

[0023] Furthermore, the transverse keel and the vertical keel are both square steel.

[0024] Furthermore, the other end of each iron sheet A extends out of the side of the vertical keel by 20 mm.

[0025] Beneficial effects:

[0026] (1) The utility model provides an adjustable temporary protection for staircases. One end of the vertical keel can be installed in the installation hole A of the corresponding embedded part by means of rotational fixing. Compared with the previous method of fixing by expansion screws, the rotational fixing method does not require later cutting, which can simplify the process, improve construction efficiency, and reduce costs. The horizontal keel is a telescopic structure with variable length, so that the temporary protection is suitable for stairs of different lengths. The two ends of the horizontal keel are respectively hinged to the two vertical keels, so that each temporary protection unit can adjust the angle between the vertical keel and the horizontal keel according to the height of different stairs, so that the temporary protection is suitable for stairs of different heights. The two temporary protection units are hinged by a connecting piece B, which can realize the overall assembly of the temporary protection units and folding at the same time, which not only reduces the occupied space but also facilitates transportation and storage; the temporary protection integrates the change in height direction with the folding and shrinking structure by hinged connection, and the telescopic structure of the horizontal keel can meet the needs of site area division at different construction sites and different construction stages by only using vertical keels and horizontal keels of a single specification and model; the use of vertical keels and horizontal keels of a single specification and model can reduce the time required for installation calculation and material cutting and assembly, and can further improve work efficiency.

[0027] (2) The utility model provides an adjustable temporary protection for a stairwell. When one end of the vertical keel passes through the mounting hole B and is located in the inner hole of the cylindrical structure, the vertical keel is rotated, and more than three limit plates on the embedded parts limit the teeth of the vertical keel to achieve rotational fixation, so that each temporary protection unit is easy to install and disassemble, which can simplify the process while ensuring the degree of fixation.

[0028] (3) The utility model provides an adjustable temporary protection for a staircase, wherein both the horizontal keel and the vertical keel are made of square steel. Since the strength distribution of the square steel is uniform and the load-bearing capacity is strong, it is beneficial to stabilize the telescopic structure of the horizontal keel.

[0029] (4) The utility model provides an adjustable temporary protection for a stairwell, wherein the other end of the iron sheet A extends out of the side of the vertical keel by 20 mm, and the length is convenient for installing the horizontal keel on the connecting piece A. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural composition diagram of the utility model;

[0031] Figure 2 It is the three-dimensional figure A of the utility model;

[0032] Figure 3 It is the three-dimensional diagram B of the utility model;

[0033] Figure 4 This is the pull-out node diagram of the transverse keel of the utility model;

[0034] Figure 5 This is a connection diagram of the vertical keel and the horizontal keel of the utility model;

[0035] Figure 6 It is a connection node diagram of two temporary protections of the utility model;

[0036] Figure 7 This is a structural diagram of the embedded node of the utility model;

[0037] Among them, 1-vertical keel, 2-connector A, 3-screw, 4-transverse keel a, 5-transverse keel b, 6-connector B, 7-embedded parts. DETAILED DESCRIPTION

[0038] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0039] This embodiment provides an adjustable temporary protection for the staircase, which is installed on the stair platform; Figure 1 , Figure 2 and Figure 7 As shown, the temporary protection is composed of multiple temporary protection connections; each temporary protection unit includes: a plurality of transverse keels, two vertical keels 1, a plurality of connecting members A2, a plurality of screws 3 and two embedded members 7;

[0040] like Figure 7 As shown, the embedded part 7 is installed on the stair platform; each embedded part 7 is a cylindrical structure; one end of the cylindrical structure is embedded in the stair platform, and the other end of the cylindrical structure extends out of the stair platform; more than three limit plates are processed on the inner wall surface of the other end of the cylindrical structure, and the more than three limit plates are evenly arranged along the circumference of the inner wall surface; more than three limit plates and the inner wall surface of the embedded part 7 cooperate to form a mounting hole A; the mounting hole A includes: a mounting hole B formed between more than three limit plates and an inner hole of the cylindrical structure;

[0041] like Figure 7 As shown, one end of each of the vertical keels 1 is welded with a plurality of teeth along its circumference; the cross-sectional shape of the end of the vertical keel 1 with teeth is consistent with the shape of the mounting hole B; when installing the vertical keel 1, the end of the vertical keel 1 with teeth can be passed through the mounting hole B and located in the inner hole of the cylindrical structure, and then the vertical keel 1 is rotated. At this time, more than three limit plates on the embedded part 7 limit the teeth of the vertical keel 1, thereby achieving the fixation of the vertical keel 1; compared with the traditional method of using expansion bolts to fix the vertical keel 1 to the stair platform, the embedded rotation and fastening method not only simplifies the construction steps, but also avoids the tedious work of cutting off in the later stage; this simplification can reduce the professional requirements of the construction, improve the construction efficiency, and shorten the construction period;

[0042] like Figure 5 As shown, both ends of each transverse keel are rotatably mounted on two vertical keels 1 through a connecting piece A2, and several transverse keels of the same temporary protection unit are parallel to each other;

[0043] A plurality of connectors A2 are divided into two groups of equal number, and the two groups of connectors A2 are respectively fixedly connected to two vertical keels 1; each group of connectors A2 is arranged along the length direction of each vertical keel 1; each of the connectors A2 comprises: two iron sheets A and a screw rod 3; the two iron sheets A on each of the connectors A are arranged opposite to each other, one end of each of the iron sheets A is fixedly connected to the side of the vertical keel 1 by welding, and the other end of the iron sheet A extends out of the side of the vertical keel 1, and a threaded hole is processed at the other end of the iron sheet A, and the two threaded holes on the two iron sheets A are coaxial; after the screw rod 3 is screwed into the threaded holes of the two iron sheets A, the two ends of the screw rod 3 are respectively welded to the two threaded holes;

[0044] Each transverse keel is a telescopic structure with variable length, such as Figure 4 As shown, the transverse keel includes: a transverse keel a4 and a transverse keel b5; one end of the transverse keel a4 is hinged on a screw rod 3 on a vertical keel; one end of the transverse keel b5 is sleeved on the other end of the transverse keel a4, and the other end of the transverse keel b5 is hinged on the screw rod 3 of another vertical keel; the transverse keel a4 and the transverse keel b5 form a telescopic structure with variable length, and the length adjustment of the temporary protection is achieved by pulling the transverse keel a4 out of the transverse keel b5; in this embodiment, each transverse keel on the temporary protection is preferably three; in this embodiment, an iron sheet C is installed on the other end of the transverse keel b5; when the transverse keel is not connected to the vertical keel 1, during the transportation of the transverse keel, one end of the transverse keel a4 is vertically facing upward, and the other end of the transverse keel b5 is vertically facing downward. At this time, the iron sheet C plays a limiting role on the transverse keel a4, and the iron sheet C can prevent the transverse keel a4 from escaping from the other end of the transverse keel b5;

[0045] The two ends of the transverse keel can rotate 180 degrees around the screw rod 3, and the rotation angle of the transverse keel can be adjusted according to the height of the stairs, so that the temporary protection is suitable for stairs of different heights; the controllable rotation angle structure eliminates the need for tedious calculations and cutting when making temporary protection, which not only simplifies the construction project, but also improves the construction efficiency;

[0046] like Figure 3 and Figure 6As shown, the two temporary protections are connected by a plurality of connecting members B6; the connecting members B6 include: two iron sheets B and a rotating shaft; the two iron sheets B on each connecting member B6 are respectively fixedly connected to the two temporary protection units; the two iron sheets B are hinged by the rotating shaft, so that the two temporary protection units can rotate relative to each other, that is, the two temporary protection units can be folded; the foldable structure greatly reduces the occupied space and transportation costs during transportation; in addition, the folding function also greatly facilitates on-site installation and maintenance work, making the construction process simpler and more efficient;

[0047] In this embodiment, all structures of the temporary protection are made of steel materials, which can ensure the durability of the temporary protection; in this embodiment, each transverse keel (transverse keel a4 and transverse keel b5) and vertical keel 1 are square steels, and the use of square steel structures is conducive to the socket connection between the transverse keel b5 and the transverse keel a4;

[0048] In this embodiment, the cutting deviation of the transverse keel a4 and the transverse keel b5 is ±5mm; the third-level welding requirements are met, and the weld width is ≥10mm;

[0049] In this embodiment, the material deviation of the vertical keel 1 and the iron sheet B on the connecting piece B6 is ±5mm; the welding position deviation is ±3mm; the third-level welding requirements are met, and the weld width is ≥10mm;

[0050] In this embodiment, the welding position deviation of the connecting piece B6 is ≤3mm; the third-level welding requirements are met, and the weld width is ≥10mm;

[0051] In this embodiment, the length of the iron sheet A extending from the side of the vertical keel 1 is 20 mm, which is convenient for installing the transverse keel on the connecting piece A2. The thickness of the iron sheet A is 3 mm; the transverse keel b5 is recommended to be 40×40×4.75 mm, the transverse keel a4 is recommended to be 30×30×4 mm, and the vertical keel 1 is recommended to be 40×40×4.75 mm.

[0052] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable temporary protection for stairwells, characterized in that: The temporary protection is composed of a plurality of temporary protection units connected together; each temporary protection unit comprises: a plurality of transverse keels, two vertical keels (1) and two embedded parts (7); The embedded parts (7) are installed on the staircase platform, and each embedded part (7) is processed with a mounting hole a; One end of each of the vertical keels (1) can be installed in the installation hole a of the corresponding embedded part in a rotationally fixed manner; the two vertical keels (1) of the same temporary protection unit are parallel to each other; In each temporary protection unit, a plurality of transverse keels are installed between two vertical keels (1); each transverse keel is a telescopic structure with variable length, one end of the transverse keel is hinged to one vertical keel (1), and the other end of the transverse keel is hinged to another vertical keel (1); the plurality of transverse keels in the same temporary protection unit are parallel to each other; Each two temporary protection units are hingedly connected via a connecting member B (6), and the two temporary protection units hingedly connected via the connecting member B (6) can rotate relative to each other; Each of the temporary protection units also includes a plurality of connecting members A (2); The plurality of connecting members A (2) are divided into two groups of equal number, and the two groups of connecting members A (2) are respectively fixedly connected to the two vertical keels (1); each group of connecting members A (2) is arranged along the length direction of each vertical keel (1); Each of the connecting members A (2) comprises: two iron sheets A and a screw rod (3); The two iron sheets A on each of the connecting members A are arranged opposite to each other, one end of each of the iron sheets A is fixedly connected to the side of the vertical keel (1), and the other end of the iron sheet A extends out of the side of the vertical keel (1), and a threaded hole is processed on the other end of the iron sheet A, and the two threaded holes on the two iron sheets A are coaxial; The screw rod (3) is screwed into the threaded holes of the two iron sheets A at the same time, and the two ends of the transverse keel are respectively hinged to the two screw rods (3); The connecting member B (6) is a hinge structure, comprising: two iron sheets B and a rotating shaft; one side edge of the two iron sheets B is hinged via the rotating shaft; The other sides of the two iron sheets B are respectively fixedly connected to the two temporary protection units.

2. The adjustable temporary protection for stairwells as claimed in claim 1, characterized in that: Each embedded part (7) is a cylindrical structure; one end of the cylindrical structure is embedded in the staircase platform, and the other end of the cylindrical structure extends out of the staircase platform; the inner wall surface of the other end of the cylindrical structure is processed with more than three limit plates, and the more than three limit plates are evenly arranged along the circumference of the inner wall surface; the more than three limit plates and the inner wall surface of the embedded part (7) cooperate to form a mounting hole A, and the mounting hole A includes: a mounting hole B formed between the more than three limit plates and an inner hole of the cylindrical structure; One end of the vertical keel (1) is provided with a plurality of teeth along its circumference, and the cross-sectional shape of the end of the vertical keel (1) provided with the teeth is consistent with the shape of the mounting hole B. When one end of the vertical keel (1) passes through the mounting hole B and is located in the inner hole of the cylindrical structure, the vertical keel (1) is rotated, and more than three limit plates on the embedded part (7) limit the teeth of the vertical keel (1), thereby achieving rotational fixation.

3. The adjustable temporary protection for stairwells as claimed in claim 1, characterized in that: Each of the transverse keels comprises: a transverse keel a (4) and a transverse keel b (5); In each temporary protection unit, one end of the transverse keel a (4) is hinged to a vertical keel (1), one end of the transverse keel b (5) is sleeved to the other end of the transverse keel a (4), and the other end of the transverse keel b (5) is hinged to another vertical keel (1); A telescopic structure with variable length is formed between the transverse keel a (4) and the transverse keel b (5).

4. The adjustable temporary protection for stairwells as claimed in claim 1 or 3, characterized in that: The transverse keel and the vertical keel (1) are both made of square steel.

5. The adjustable temporary protection for stairwells as claimed in claim 1, characterized in that: The other end of each iron sheet A protrudes from the side of the vertical keel (1) by 20 mm.

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