Temporary protection support for prefabricated stair construction

Abstract

The invention relates to the technical field of protection frames, in particular to a temporary protection support for prefabricated stair construction, which comprises an upright post, a base plate fixed at the bottom end of the upright post, an outer sleeve and an inner sleeve fixed on the top surface of the base plate, a stud I fixed at the top end of the upright post, and a blocking frame screwed at the top end of the stud I, a plurality of lantern rings are fixedly arranged on a pipe body of the outer sleeve in a sleeving mode, a plurality of groups of enclosure rods are arranged between the two groups of stand columns, and connecting blocks are hinged to the two ends of each enclosure rod. The installation of the stand columns can be completed by erecting the two groups of stand columns at the top and the bottom of a stairway through electric drill punching and expansion pipe fixing. And then, fingers are dug in finger grooves in the top faces of the blocking frames to upwards screw the blocking frames to enable the blocking frames to be separated from the first studs, then the multiple sets of enclosure rods are pulled out of the inner sleeves and the outer sleeves and installed on the two sets of outer sleeves in an end-to-end connection mode, temporary protection on the edges of the prefabricated stairs can be formed, the whole installation process is simple and rapid, and complex tools and professional skills are not needed.

Description

Technical Field

[0001] The invention relates to the technical field of protective frames, in particular to a temporary protective support for prefabricated staircase construction. Background Art

[0002] During the construction of prefabricated stairs, temporary protective devices need to be installed on the edges of the stairs to ensure the safety of construction workers and prevent them from accidentally falling off the edge of the stairs. However, existing temporary protective devices have many shortcomings:

[0003] Inconvenient installation and removal: Some temporary protective devices are complex to install, requiring numerous tools and accessories. The installation process is tedious and time-consuming, requiring significant labor and effort. Disassembly also presents similar challenges, impacting both efficiency and costs. For example, some guardrails require on-site welding, requiring specialized personnel for both welding and cutting.

[0004] Difficulty in storage: After construction is complete, temporary protective devices need to be dismantled and stored. However, existing devices often lack a reasonable storage design, resulting in dismantled components being disorganized and taking up a lot of space. These components also need to be reassembled for the next use, increasing management costs and making them difficult to use. For example, some protective railings, which are designed to be disassembled, are prone to loss or damage after dismantling.

[0005] Poor adaptability: Different prefabricated staircases may have different sizes and shapes. Most of the existing temporary protective devices have fixed sizes and structures, which are difficult to adapt to the needs of different staircases and cannot be flexibly adjusted and installed, limiting their scope of application. Summary of the Invention

[0006] The purpose of the present invention is to provide a temporary protective support for the construction of prefabricated stairs to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a temporary protective support for the construction of prefabricated stairs, comprising a column, a pad fixed at the bottom end of the column, an outer sleeve and an inner sleeve fixed on the top surface of the pad, a stud one fixed at the top end of the column, a retaining frame screwed to the top end of the stud one, the retaining frame blocks the inner pipe opening of the outer sleeve, a plurality of collars are fixed on the tube body of the outer sleeve, a plurality of groups of guardrails are provided between the two groups of columns, both ends of the guardrails are hinged with connecting blocks, the connecting blocks at the ends of two adjacent guardrails are connected by bolts, the connecting block at one end of the guardrail is installed on the collar, and the guardrail is stored on the inner side of the inner sleeve and the outer sleeve after being removed.

[0008] Preferably, the circular surface diameter of the pad is larger than the outer diameter of the outer sleeve, and a plurality of bolt holes are provided on the surface of the pad. The inner sleeve is sleeved on the outer side of the column, and the outer sleeve is sleeved on the outer side of the inner sleeve. A plurality of partitions are fixed between the inner annular surface of the column and the inner sleeve, and a plurality of partitions are fixed between the inner sleeve and the outer sleeve.

[0009] Preferably, the retaining frame is a semi-spherical structure with a hollow interior, and a threaded sleeve is integrally formed on the inner side of the retaining frame. The threaded sleeve is threaded onto the stud, and the bottom diameter of the retaining frame is equal to the outer diameter of the outer sleeve.

[0010] Preferably, a plurality of finger grooves are provided on the top surface of the retaining frame, and the plurality of finger grooves are distributed in a circumference.

[0011] Preferably, the connecting block is an "L"-shaped plate structure, one end of the connecting block and both ends of the enclosure rod are provided with notches, and hinges are inserted and fixed in two adjacent notches of the connecting block and the enclosure rod.

[0012] Preferably, the two connecting blocks at both ends of the guardrail are staggered, that is, when the two guardrails are spliced ​​end to end, they are assembled through the two staggered connecting blocks, and the surfaces of the connecting blocks are provided with through-holes, and the through-holes on the surfaces of the two assembled connecting blocks are penetrated by bolts.

[0013] Preferably, a splicing groove is provided on the top surface of the collar, and a plurality of splicing grooves are provided. The plurality of splicing grooves are distributed in a circle along the edge of the top surface of the collar, and the connecting blocks are inserted into the splicing grooves.

[0014] Preferably, a second screw is fixed on the surface of the splicing groove, the second screw passes through the through hole on the surface of the connecting block, and one end of the second screw is sleeved with a nut threaded on it.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The proposed temporary protective bracket for prefabricated staircase construction involves placing two sets of columns at the top and bottom of the staircase. The columns are then installed by drilling holes with an electric drill and securing them with expansion tubes. Subsequently, the bracket is twisted upwards by inserting fingers into the finger grooves on its top surface to disengage it from the studs. Multiple sets of guardrails are then removed from the inner and outer sleeves and installed end-to-end on the two sets of outer sleeves, creating a temporary protection for the edge of the prefabricated staircase. The entire installation process is simple and quick, requiring no complex tools or specialized skills.

[0017] When the protective frame is not installed, multiple protective rods can be inserted into the inner and outer sleeves respectively, effectively storing the removed protective rods. At the same time, the retaining frame blocks the top of the outer sleeve, preventing the protective rods from being ejected from the outer sleeve due to bumps, ensuring neat and safe storage and reducing the number of parts.

[0018] There are connecting blocks hinged at both ends of the guardrail, and the connecting blocks at the ends of two adjacent guardrails are connected by bolts, and the two connecting blocks at both ends of the guardrail are staggered, which is convenient for bending and tilting when multiple guardrails are connected, and can adapt to the shapes and sizes of different prefabricated stair edges; multiple rings are fixed on the tube body of the outer sleeve, and multiple splicing grooves are opened on the top surface of the rings. The connecting blocks can be inserted into different splicing grooves, realizing flexible adjustment of the installation position of the guardrail, further improving the adaptability of the protective bracket, and can be widely used in the construction protection of prefabricated stairs of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 A top view of the structure of the present invention;

[0021] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0023] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0024] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0025] Figure 7 This is a schematic diagram of the connection structure between the outer sleeve and the retaining frame of the present invention;

[0026] Figure 8 This is a schematic diagram of the connection structure between the inner sleeve and the outer sleeve of the present invention;

[0027] Figure 9 It is a schematic diagram of the ring structure of the present invention.

[0028] In the figure: column 1, pad 2, bolt hole 3, inner sleeve 4, outer sleeve 5, partition 6, stud 1 7, screw sleeve 8, retaining frame 9, finger groove 10, collar 11, splicing groove 12, connecting block 13, guardrail 14, missing groove 15, hinge 16, through hole 17, screw 2 18, nut 19, bolt 20. DETAILED DESCRIPTION

[0029] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1 to 9 The present invention provides a technical solution: a temporary protective support for prefabricated staircase construction, comprising a column 1, a pad 2 fixed to the bottom end of the column 1, an outer sleeve 5 and an inner sleeve 4 fixed to the top surface of the pad 2, a stud 7 fixed to the top end of the stud 7, a retaining frame 9 screwed to the top end of the stud 7, the retaining frame 9 blocks the inner pipe opening of the outer sleeve 5, the retaining frame 9 is a semi-spherical structure with a hollow interior, a screw sleeve 8 is integrally formed on the inner side of the retaining frame 9, the screw sleeve 8 is screwed on the stud 7, and the bottom surface diameter of the retaining frame 9 is equal to The outer diameter of the outer sleeve 5; the guardrail 14 is stored inside the inner sleeve 4 and the outer sleeve 5 after being removed; the circular surface diameter of the pad 2 is larger than the outer diameter of the outer sleeve 5, and a plurality of bolt holes 3 are provided on the surface of the pad 2. The inner sleeve 4 is sleeved on the outside of the column 1, and the outer sleeve 5 is sleeved on the outside of the inner sleeve 4. A plurality of partitions 6 are fixed between the inner annular surfaces of the column 1 and the inner sleeve 4, and a plurality of partitions 6 are fixed between the inner sleeve 4 and the outer sleeve 5. A plurality of finger grooves 10 are provided on the top surface of the retaining frame 9, and the plurality of finger grooves 10 are distributed in a circle. After the staircase is closed, the staircase 1 is tightened and the staircase 1 is tightened, so that the staircase 1 is tightened and the staircase 1 is tightened.

[0031] A plurality of collars 11 are fixedly mounted on the tube body of the outer sleeve 5, and a plurality of groups of guardrails 14 are provided between the two groups of columns 1. Both ends of the guardrails 14 are hinged with connecting blocks 13. The connecting blocks 13 at the ends of two adjacent guardrails 14 are connected by bolts 20, and the connecting block 13 at one end of the guardrail 14 is installed on the collar 11. The connecting block 13 is an "L"-shaped plate structure, and one end of the connecting block 13 and both ends of the guardrail 14 are provided with a notch 15, and a hinge 16 is inserted and fixed in the two adjacent notches 15 of the connecting block 13 and the guardrail 14; the two connecting blocks 13 at both ends of the guardrail 14 are staggered, that is, when the two guardrails 14 are spliced ​​end to end, they are assembled through two staggered connecting blocks 13, and the surface of the connecting block 13 is provided with a through hole 17, and the through holes 17 on the surfaces of the two assembled connecting blocks 13 are penetrated by bolts 20; the top surface of the ring 11 is provided with a splicing groove 12, and there are multiple splicing grooves 12, and the multiple splicing grooves 12 are distributed in a circle along the edge of the top surface of the ring 11, and the connecting block 13 is inserted in the splicing groove 12. The two adjacent guardrails 14 are connected by bolts 20. The guardrail 14 at the end pushes the connecting block 13 at one end into the splicing groove 12, and after the screw 18 passes through the through hole 17 on the surface of the connecting block 13, the nut 19 is sleeved and screwed on the screw 18 to lock it. In this way, multiple end-to-end connected guardrails 14 are installed between the two outer sleeves 5, and the ends of the guardrails 14 are hinged to the connecting block 13 through the hinge 16, so that multiple guardrails 14 can be bent and tilted when connected.

[0032] Instructions for using the temporary protective bracket for prefabricated staircase construction: When the protective bracket is not installed, insert multiple guardrails 14 into the inner sleeve 4 and outer sleeve 5 respectively to store the removed guardrails 14. The retaining frame 9 is sealed at the top of the outer sleeve 5 to prevent the guardrails 14 from bouncing out from the inner sleeve 5. Place two sets of columns 1 at the top and bottom of the stairs. Use an electric drill to drill holes in the prefabricated stairs through the multiple bolt holes 3 opened on the surface of the pad 2. Pass the expansion tube through the bolt holes 3 and hammer it into the hole on the bottom to fix the two columns 1 on the prefabricated stairs. Put your fingers into the multiple finger grooves 10 distributed in a circle on the top surface of the retaining frame 9 and screw the retaining frame 9 upward. The retaining frame 9 drives the screw sleeve 8 integrally formed on the inside to move upward along the stud 7 at the top of the column 1 until the screw sleeve 8 and stud 7 are separated. Pull out the multiple sets of guardrails 14 from the inner sleeve 4 and outer sleeve 5. Both ends of the guardrail 14 are hinged with a connecting block 13 in the form of an L-shaped plate structure. One end of the connecting block 13 and both ends of the guardrail 14 are provided with a notch 15. Hinges 16 are inserted and fixed in the two adjacent notches 15 of the connecting block 13 and the guardrail 14, and the two connecting blocks 13 at both ends of the guardrail 14 are staggered. The connecting blocks 13 at the ends of two adjacent guardrails 14 are connected by bolts 20. Specifically, the through holes 17 opened on the surface of the two assembled connecting blocks 13 are penetrated by the bolts 20. A plurality of collars 11 are fixedly mounted on the tube body of the outer sleeve 5. The top surface of the collar 11 is provided with a plurality of splicing grooves 12 distributed circumferentially along the edge of its top surface. The connecting block 13 at one end of the guardrail 14 is pushed into the splicing groove 12. After the screw rod 18 passes through the through hole 17 on the surface of the connecting block 13, the nut 19 is screwed onto the screw rod 18 and locked. In this way, multiple guardrails 14 connected end to end are installed between the two outer sleeves 5, and because the ends of the guardrails 14 are hinged to the connecting blocks 13 through hinges 16, it is convenient for multiple guardrails 14 to bend and tilt when connected, forming temporary protection for the edges of the prefabricated stairs.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A temporary protective support for prefabricated staircase construction, comprising a column (1), a pad (2) fixed to the bottom end of the column (1), and characterized in that: An outer sleeve (5) and an inner sleeve (4) are fixed to the top surface of the pad (2); a stud (7) is fixed to the top of the column (1); a retaining frame (9) is screwed to the top of the stud (7); the retaining frame (9) blocks the inner pipe opening of the outer sleeve (5); a plurality of collars (11) are fixed on the pipe body of the outer sleeve (5); a plurality of groups of guard rods (14) are provided between the two groups of columns (1); both ends of the guard rods (14) are hinged with connecting blocks (13); the connecting blocks (13) at the ends of two adjacent guard rods (14) are connected by bolts (20); the connecting block (13) at one end of the guard rod (14) is installed on the collar (11); after the guard rod (14) is removed, it is stored inside the inner sleeve (4) and the outer sleeve (5).

2. The temporary protective support for prefabricated staircase construction according to claim 1 is characterized in that: The diameter of the circular surface of the pad (2) is larger than the outer diameter of the outer sleeve (5); a plurality of bolt holes (3) are provided on the surface of the pad (2); the inner sleeve (4) is sleeved on the outer side of the column (1); the outer sleeve (5) is sleeved on the outer side of the inner sleeve (4); a plurality of partitions (6) are fixed between the inner annular surface of the column (1) and the inner sleeve (4); and a plurality of partitions (6) are fixed between the inner sleeve (4) and the outer sleeve (5).

3. The temporary protective support for prefabricated staircase construction according to claim 1 is characterized in that: The retaining frame (9) is a semi-spherical structure with a hollow interior. A threaded sleeve (8) is integrally formed on the inner side of the retaining frame (9). The threaded sleeve (8) is threadedly mounted on the stud (7). The bottom diameter of the retaining frame (9) is equal to the outer diameter of the outer sleeve (5).

4. The temporary protective support for prefabricated staircase construction according to claim 1 is characterized in that: The top surface of the retaining frame (9) is provided with a plurality of finger grooves (10), and the plurality of finger grooves (10) are distributed in a circumferential manner.

5. The temporary protective support for prefabricated staircase construction according to claim 1 is characterized in that: The connecting block (13) is an L-shaped plate structure. One end of the connecting block (13) and both ends of the enclosure rod (14) are provided with notches (15). Hinges (16) are inserted and fixed in two adjacent notches (15) of the connecting block (13) and the enclosure rod (14).

6. The temporary protective support for prefabricated staircase construction according to claim 1 is characterized in that: The two connecting blocks (13) at both ends of the enclosure rod (14) are staggered, that is, when the two enclosure rods (14) are spliced ​​end to end, they are assembled through the two staggered connecting blocks (13), and the surfaces of the connecting blocks (13) are provided with through-holes (17). The through-holes (17) on the surfaces of the two assembled connecting blocks (13) are penetrated by bolts (20).

7. The temporary protective support for prefabricated staircase construction according to claim 6 is characterized in that: The top surface of the collar (11) is provided with a splicing groove (12), and a plurality of splicing grooves (12) are provided. The plurality of splicing grooves (12) are distributed in a circumferential manner along the edge of the top surface of the collar (11), and the connecting block (13) is inserted into the splicing groove (12).

8. The temporary protective support for prefabricated staircase construction according to claim 7 is characterized in that: A second screw rod (18) is fixed on the surface of the splicing groove (12), and the second screw rod (18) passes through the through hole (17) on the surface of the connecting block (13), and one end of the second screw rod (18) is sleeved with a nut (19) threaded thereon.

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