Adjustable construction opening protection device

Abstract

This utility model discloses an adjustable construction opening protection device, comprising: a fixed channel steel component, which is correspondingly disposed above the frame of a rectangular opening, the fixed channel steel component including two first sides and two second sides; a first adjusting component, which is C-shaped, including two first I-shaped parts and two first I-shaped parts, the two first I-shaped parts of the first adjusting component being slidably connected to the two first sides respectively; a second adjusting component, which is C-shaped, including two second I-shaped parts and two second I-shaped parts, two second adjusting components being symmetrically arranged, the two second I-shaped parts of the two second adjusting components being slidably connected to the two second sides respectively; and a large-mesh mesh disposed inside the fixed channel steel component. This utility model, by setting the sliding connection between the first adjusting component, the second adjusting component, and the fixed channel steel component, achieves position adjustment of the first adjusting component and the second adjusting component, thereby adapting to the protection needs of pipelines of different sizes passing through openings, without the need for on-site cutting of rigid cover plates.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an adjustable construction opening protection device. Background Technology

[0002] In building construction, opening protection typically employs two standard methods: rigid protective covers (such as bamboo plywood) are used to seal openings with a short side of 500–1500 mm, while large-mesh netting is used to secure openings larger than 1500 mm around the perimeter. However, existing technologies have serious shortcomings when ductwork, cable trays, or water pipes pass through the opening. Rigid covers need to be cut on-site according to the pipe cross-section, which can easily create gaps and result in inadequate protection. Furthermore, they require repeated processing to fit different pipes. Large-mesh netting cannot be effectively tensioned and fixed due to pipe obstruction, creating a risk of loose netting and falling debris. The core pain point in the industry is that traditional protection methods cannot simultaneously meet the requirements of pipe adaptability and protective tightness, especially for openings with offset pipe locations or irregular cross-sections, resulting in low construction efficiency, poor turnover, and ongoing safety risks. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable construction opening protection device to solve the above-mentioned problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable construction opening protection device, comprising an original reinforced concrete floor slab with a pre-reserved rectangular opening; a fixed channel steel member, which is a rectangular frame, correspondingly positioned above the frame of the rectangular opening, the inner side of the fixed channel steel member being flush with the frame of the rectangular opening in the vertical direction, the fixed channel steel member including two first sides and two second sides, the length of the first side being greater than the length of the second side; and a first adjusting member, which is C-shaped and includes two first I-shaped sections. The first adjusting member has two first I-shaped parts, each slidably connected to two first sides; the second adjusting member is C-shaped, comprising two second I-shaped parts and a second I-shaped part, with two second adjusting members symmetrically arranged, each second I-shaped part slidably connected to two second sides, and the two second adjusting members are positioned above the two first adjusting members, with the two second I-shaped parts fixedly connected to the two first I-shaped parts; and a large-mesh net is positioned inside the fixed channel steel member, with multiple rope ends spaced apart on each of the four sides of the large-mesh net.

[0005] In a preferred embodiment, the first adjusting member is a flat steel plate, the second adjusting member is an L-shaped steel, the first adjusting member is provided with a plurality of first pin holes spaced apart, and the horizontal part of the second adjusting member is provided with a plurality of second pin holes spaced apart.

[0006] In a preferred embodiment, the two first sides and the two second sides of the fixed channel steel member each include an upper horizontal portion, a vertical portion, and a lower horizontal portion. The lower horizontal portions of the two first sides and the two second sides are fixedly connected to the original reinforced concrete structural floor through expansion bolts.

[0007] In a preferred embodiment, a plurality of third pin holes are spacedly provided on the upper horizontal portions of the two first sides and the two second sides of the fixed channel steel member. The big-eye mesh is fixedly connected to the fixed channel steel member by passing a rope end through the third pin holes.

[0008] In a preferred embodiment, the two first one-word parts respectively abut against the vertical portions of the two first sides, and the two first one-word parts respectively overlap with the lower horizontal portions of the two first sides; the vertical portions of the two second one-word parts respectively abut against the vertical portions of the two second sides, and the horizontal portions of the two second one-word parts respectively overlap with the lower horizontal portions of the two first sides.

[0009] In a preferred embodiment, two first adjusting members are provided, and the two first adjusting members are spaced symmetrically; two second adjusting members are provided, and the two second adjusting members are spaced symmetrically. The two first adjusting members and the two second adjusting members are arranged in a cross shape. An air duct with the same area as the mouth of the cross shape is provided inside the mouth in the middle of the cross shape. The four sides of the big-eye mesh are arranged on the fixed channel steel member. The inner side of the big-eye mesh is fixedly connected to the two first adjusting members and the two second adjusting members through rope ends. The air duct is not provided with a big-eye mesh.

[0010] In a preferred embodiment, an air duct is provided inside the fixed channel steel member. The air duct is provided at a corner of the fixed channel steel member. The air duct is rectangular. The first side of the air duct abuts against the first side in parallel. The second side of the air duct abuts against the second side in parallel. A second adjusting member is provided outside the third side of the air duct. A first adjusting member is provided outside the fourth side of the air duct.

[0011] Compared with the prior art, the present utility model has the following characteristics and beneficial effects:

[0012] 1. By slidingly connecting the two first one-word parts of the first adjusting member with the two first sides of the fixed channel steel member, and slidingly connecting the two second one-word parts of the second adjusting member with the two second sides of the fixed channel steel member, the present utility model realizes the position adjustment of the first adjusting member and the second adjusting member, so as to meet the protection requirements when pipelines of different sizes pass through the holes, and there is no need to cut the hard cover plate on site.

[0013] 2. This utility model uses a large-mesh net to fix the net to the inside of the fixed channel steel part by passing the rope end through multiple third pin holes on the horizontal part of the fixed channel steel part. At the same time, the inside of the large-mesh net is fixedly connected to the first and second adjustment parts after adjustment by the rope end, ensuring that the large-mesh net can still be effectively tensioned under the condition of pipeline passing through, eliminating the hidden danger of falling through the loose net.

[0014] 3. This utility model uses a second adjusting member positioned above the first adjusting member, with two second I-shaped parts fixedly connected to two first I-shaped parts, so that the first adjusting member and the second adjusting member form an integral frame structure; when the duct is located at one corner of the opening, the first adjusting member is made to be tightly attached to the outer side of the fourth edge of the duct and the second adjusting member is made to be tightly attached to the outer side of the third edge of the duct by sliding adjustment, so as to achieve tight protection of the duct opening. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the fixing channel steel component of this utility model;

[0017] Figure 2 This is a detailed drawing of the fixing channel steel component of this utility model;

[0018] Figure 3 This is a schematic diagram of the second adjusting component of this utility model.

[0019] Figure 4 This is a schematic diagram of the first adjusting component of this utility model;

[0020] Figure 5 This is a schematic diagram showing the connection between the fixed channel steel component, the first adjusting component, and the second adjusting component of this utility model.

[0021] Figure 6 This is a schematic diagram of the large-mesh mesh of this utility model;

[0022] Figure 7 This is a schematic diagram of the air duct of this utility model located in the middle;

[0023] Figure 8 This is a schematic diagram of the air duct of this utility model located in a corner.

[0024] Figure labels: 1 - original reinforced concrete floor slab, 2 - fixed channel steel component, 3 - first side, 4 - second side, 5 - first I-section, 6 - first I-section, 7 - second I-section, 8 - second I-section, 9 - large mesh, 10 - first pin hole, 11 - second pin hole, 12 - upper horizontal section, 13 - lower horizontal section, 14 - expansion bolt, 15 - third pin hole, 16 - air duct. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1:

[0027] See the examples. Figures 1 to 8 As shown, the present invention provides an adjustable construction opening protection device, which includes an original reinforced concrete floor slab 1, on which a rectangular opening is reserved.

[0028] The fixing channel steel component 2 is a rectangular frame, which is correspondingly set above the frame of the rectangular opening. The inner side of the fixing channel steel component 2 is flush with the frame of the rectangular opening in the vertical direction. The fixing channel steel component 2 includes two first sides 3 and two second sides 4. The length of the first side 3 is greater than the length of the second side 4. Each of the two first sides 3 and the two second sides 4 of the fixing channel steel component 2 includes an upper horizontal part 12, a vertical part and a lower horizontal part 13. The lower horizontal parts 13 of the two first sides 3 and the two second sides 4 are fixedly connected to the original reinforced concrete structural floor slab 1 by expansion bolts 14. Multiple third pin holes 15 are provided at intervals on the upper horizontal parts 12 of the two first sides 3 and the two second sides 4 of the fixing channel steel component 2.

[0029] The first adjusting member is a flat steel plate. The first adjusting member has a plurality of first pin holes 10 spaced apart. The first adjusting member is C-shaped and includes two first straight sections 5 and a first I-shaped section 6. The two first straight sections 5 of the first adjusting member are slidably connected to the two first sides 3 respectively. The two first straight sections 5 abut against the vertical parts of the two first sides 3 respectively. The two first straight sections 5 overlap with the lower horizontal parts 13 of the two first sides 3 respectively.

[0030] The second adjusting member is an L-shaped steel. The horizontal part of the second adjusting member is provided with a plurality of second pin holes 11 spaced apart. The second adjusting member is C-shaped, including two second straight parts 7 and two I-shaped parts 8. The two second adjusting members are symmetrically arranged. The two second straight parts 7 of the two second adjusting members are slidably connected to the two second sides 4 respectively. The two second adjusting members are arranged above the two first adjusting members. The two second I-shaped parts 8 are fixedly connected to the two first I-shaped parts 6. The vertical parts of the two second straight parts 7 abut against the vertical parts of the two second sides 4 respectively. The horizontal parts of the two second straight parts 7 overlap with the lower horizontal parts 13 of the two first sides 3 respectively.

[0031] Large mesh net 9 is set inside the fixed channel steel part 2. Multiple rope ends are arranged at intervals on the four sides of the large mesh net (9). The large mesh net 9 is fixedly connected to the fixed channel steel part 2 by passing the rope ends through the third pin hole 15.

[0032] Example 2:

[0033] Two first adjusting members are provided, symmetrically spaced apart. Two second adjusting members are provided, symmetrically spaced apart. The two first adjusting members and the two second adjusting members are arranged in a grid shape. A duct 16 with the same area as the opening is provided in the middle of the grid shape. The four sides of the large mesh 9 are set on the fixed channel steel member 2. The inner side of the large mesh 9 is fixedly connected to the two first adjusting members and the two second adjusting members by rope ends. The large mesh 9 is not provided at the position of the duct 16.

[0034] Example 3:

[0035] A duct 16 is provided inside the fixed channel steel component 2. The duct 16 is located at one corner of the fixed channel steel component 2. The duct 16 is rectangular. The first side of the duct 16 is parallel to and abuts against the first side 3. The second side of the duct 16 is parallel to and abuts against the second side 4. A second adjusting member is provided on the outside of the third side of the duct 16. A first adjusting member is provided on the outside of the fourth side of the duct 16.

[0036] Example 4:

[0037] Construction steps of this utility model:

[0038] Step 1: Install the fixing channel steel component 2. Install the fixing channel steel component 2 above the rectangular opening frame of the original reinforced concrete floor slab 1. The fixing channel steel component 2 is a rectangular frame, ensuring that its inner side is vertically flush with the opening. The two long sides are the first side 3, and the two short sides are the second side 4. Secure the lower horizontal part 13 of the fixing channel steel component 2 to the floor slab using expansion bolts 14.

[0039] Step 2: Assemble the first adjusting parts, and overlap the first I-shaped part 5 of the two first adjusting parts on the lower horizontal part 13 of the two first sides 3 respectively, and make it laterally abut against the vertical part of the first side 3.

[0040] Step 3: Assemble the second adjusting component. Place two second adjusting components. The second adjusting component has an L-shaped cross section. The two second I-shaped parts 7 of the second adjusting component overlap the lower horizontal parts 13 of the two second sides 4. The vertical part of the second adjusting component abuts against the vertical part of the second side 4. Place the second adjusting component above the first adjusting component and fix the connection point between the second I-shaped part 8 and the first I-shaped part 6 with bolts.

[0041] Step 4: Adjust the frame position. When the duct 16 is centered, slide the four adjusting pieces to form a grid-shaped frame so that its central opening matches the cross section of the duct 16. When the duct 16 is at a corner, slide the first adjusting piece to make it parallel to the outside of the fourth side of the duct 16, and slide the second adjusting piece to make it parallel to the outside of the third side of the duct 16.

[0042] Step 5: Lock the adjustment position, fix the first pin hole 10 of the first adjustment component with the corresponding hole of the first side 3 with the pin, and at the same time fix the second pin hole 11 of the second adjustment component with the corresponding hole of the second side 4 with the bolt.

[0043] Step 6: Secure the large mesh net 9 to the inside of the fixed channel steel part 2 by passing the rope end through the multiple third pin holes 15 on the horizontal part 12 of the fixed channel steel part 2. At the same time, fix the inside of the large mesh net 9 to the adjusted first adjustment part and second adjustment part through the rope end.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable construction opening protection device, characterized in that: include: The original reinforced concrete floor slab (1) has a rectangular opening pre-reserved on it. Fixed channel steel component (2), the fixed channel steel component (2) is a rectangular frame, which is correspondingly set above the rectangular opening frame. The inner side of the fixed channel steel component (2) is flush with the rectangular opening frame in the vertical direction. The fixed channel steel component (2) includes two first sides (3) and two second sides (4). The length of the first side (3) is greater than the length of the second side (4). The first adjusting member is C-shaped and includes two first I-shaped parts (5) and a first I-shaped part (6). The two first I-shaped parts (5) of the first adjusting member are slidably connected to the two first sides (3) respectively. The second adjusting member is C-shaped and includes two second I-shaped parts (7) and two I-shaped parts (8). The two second adjusting members are symmetrically arranged. The two second I-shaped parts (7) of the two second adjusting members are slidably connected to the two second sides (4) respectively. The two second adjusting members are arranged above the two first adjusting members. The two second I-shaped parts (8) are fixedly connected to the two first I-shaped parts (6). Large mesh net (9) is set inside the fixed channel steel part (2), and multiple rope ends are arranged at intervals on the four sides of the large mesh net (9).

2. The adjustable construction opening protection device according to claim 1, characterized in that: The first adjusting member is a flat steel plate, and the second adjusting member is an L-shaped steel. The first adjusting member is provided with a plurality of first pin holes (10) spaced apart, and the second adjusting member is provided with a plurality of second pin holes (11) spaced apart on the horizontal part.

3. The adjustable construction opening protection device according to claim 2, characterized in that: The two first sides (3) and two second sides (4) of the fixed channel steel member (2) each include an upper horizontal part (12), a vertical part and a lower horizontal part (13). The lower horizontal parts (13) of the two first sides (3) and two second sides (4) are fixedly connected to the original reinforced concrete structural floor slab (1) by expansion bolts (14).

4. The adjustable construction opening protection device according to claim 3, characterized in that: Multiple third pin holes (15) are provided at intervals on the upper horizontal part (12) of the two first sides (3) and two second sides (4) of the fixed channel steel member (2). The large mesh net (9) is fixedly connected to the fixed channel steel member (2) by passing the rope end through the third pin hole (15).

5. The adjustable construction opening protection device according to claim 4, characterized in that: The two first-character parts (5) respectively abut against the vertical parts of the two first sides (3), and the two first-character parts (5) respectively overlap with the lower horizontal parts (13) of the two first sides (3); the vertical parts of the two second-character parts (7) respectively abut against the vertical parts of the two second sides (4), and the horizontal parts of the two second-character parts (7) respectively overlap with the lower horizontal parts (13) of the two first sides (3).

6. The adjustable construction opening protection device according to claim 5, characterized in that: Two first adjusting members are provided, and the two first adjusting members are symmetrically spaced apart. Two second adjusting members are provided, and the two second adjusting members are symmetrically spaced apart. The two first adjusting members and the two second adjusting members are arranged in a grid shape. A duct (16) with the same area as the opening is provided in the middle of the grid shape. The four sides of the large mesh (9) are set on the fixed channel steel member (2). The inner side of the large mesh (9) is fixedly connected to the two first adjusting members and the two second adjusting members by rope ends. The large mesh (9) is not provided at the position of the duct (16).

7. The adjustable construction opening protection device according to claim 5, characterized in that: A duct (16) is provided inside the fixed channel steel member (2). The duct (16) is located at one corner of the fixed channel steel member (2). The duct (16) is rectangular. The first side of the duct (16) is parallel to the first side (3). The second side of the duct (16) is parallel to the second side (4). A second adjusting member is provided on the outside of the third side of the duct (16). A first adjusting member is provided on the outside of the fourth side of the duct (16).

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