Protective device for building construction

Abstract

The utility model relates to the technical field of building protection, in particular to a protective device for building construction, which comprises a plurality of upright posts and protective screen plates arranged between two adjacent upright posts, ground inserts are installed at the bottoms of the stand columns, and sliding holes are evenly formed in the ground inserts in the circumferential direction at intervals. The interior of the ground plug is hollow; the ground insert is arranged at the bottom of the stand column, when the protection device is used, the ground insert is inserted into a corresponding soil layer, then grout for reinforcement is injected into the expansion piece through the grouting device and the arranged grouting base, and then the grout for soil layer reinforcement is injected into the soil layer around the ground insert through the grouting rod. Meanwhile, the ground insert and the surrounding soil layer are connected into a whole, and the installation stability of the ground insert and the stand column is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building protection, and particularly relates to a protective device for building construction. BACKGROUND

[0002] The protective device in building engineering has important functions and aspects, including the following: personnel safety, the protective device provides a safety barrier and protection measures to effectively prevent accidents such as falling and collision when construction personnel work at high altitudes, thereby ensuring the safety of construction personnel; material falling, safety nets and guardrails can prevent materials from falling from high altitudes during construction, avoiding harm and loss to ground workers and surrounding personnel; reducing construction site accidents, setting up perfect protective measures can significantly reduce construction site accidents caused by improper engineering operation, equipment failure or environmental factors, and improve overall safety; improving work efficiency, construction personnel can focus more on work in a safe and standardized work environment, thereby improving work efficiency and construction quality; protecting equipment and materials, the protective device not only protects personnel safety, but also effectively prevents equipment and materials at the construction site from being affected and damaged by external factors, ensuring construction progress and cost control.

[0003] Among them, the commonly used protective device is a protective fence. In building engineering, the edge of the foundation pit and the edge of the slope are required to be set with protective devices to prevent falling. Most of the existing protective devices use protective mesh sheets placed in the position to be protected. Since the position is at the edge, the soil layer is mostly loose due to construction, which causes the protective device to fall. SUMMARY

[0004] The utility model aims at providing a protective device for building construction to solve the problem of the existing protective fence being easily tilted on loose soil.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a protective device for building construction includes a plurality of columns and a protective mesh plate installed between adjacent two columns; the bottom of the column is provided with a ground plug, and the ground plug is internally hollow; the inside of the ground plug is uniformly and interval provided with sliding holes in the circumferential direction; the inside of the ground plug is hollow;

[0006] An expansion piece is arranged inside, and the surface of the expansion piece is uniformly and interval provided with grouting rods; the grouting rods are communicated with the inside of the expansion piece; the grouting rods are slidingly connected with the sliding holes;

[0007] The upper end of the expansion piece is provided with an inlet, the inside of the column is hollow, and a grouting seat is fixedly installed on the column; the grouting seat is communicated with the inlet through a pipeline.

[0008] By setting the ground plug at the bottom of the column, when using the protection device, by inserting the ground plug into the corresponding soil layer, then through the grouting device, the reinforcing slurry is injected into the expansion piece through the set grouting seat, then the slurry for reinforcing the soil layer is injected into the soil layer around the ground plug through the grouting rod, thereby reinforcing the soil layer, and the ground plug is connected with the surrounding soil layer to form a whole, thereby improving the installation stability of the ground plug and the column. By controlling the speed of grouting, the injected slurry exceeds the slurry discharged from all grouting rods, thereby causing the expansion piece to expand, and the grouting rod arranged on the surface of the expansion piece slides outward along the sliding hole, thereby entering the soil layer, thereby enabling the grouting range to be wider, thereby enabling the column to be connected with more reinforced soil layers, thereby improving the installation stability of the protection device and reducing the collapse caused by soil loosening.

[0009] Preferably, a blocking prevention film is arranged at the outlet end of the grouting rod in the sliding hole, and the thickness of the blocking prevention film is 2-5mm.

[0010] By arranging the blocking prevention film at the outlet of the grouting rod, the blocking of the blocking prevention film by mud during the insertion of the ground plug into the ground is prevented, and the material can be a water-soluble film. During grouting, a certain amount of water is sprayed around the ground plug to dissolve the blocking prevention film, and then grouting work is performed, thereby improving the stability of the grouting work and the quality of the grouting.

[0011] Preferably, a base plate is arranged at the bottom of the column, the base plate is fixedly connected with a clamping seat at the lower part; the upper end of the ground plug is fixedly connected with a clamping block; and the ground plug is clamped with the clamping seat through the clamping block.

[0012] By clamping the column and the ground plug through the clamping seat and the clamping block, after grouting, the clamping block on the ground plug is moved to the position opposite the gap on the clamping seat by rotating the column, and then the column can be lifted upward, at which time the pipeline between the grouting seat and the ground plug is removed, and then the column and the ground plug are clamped, so that when the position of the column needs to be moved later, the column can be removed by rotating the column, and the grouted ground plug is retained in the soil layer, and after a new ground plug is installed, the installation work at the new position can be performed.

[0013] Preferably, hanging rods are symmetrically fixedly connected to the upper end of the protection net plate; a clamping groove is arranged on one side of the column near the protection net plate, and a limiting component for limiting the swing of the protection net plate is arranged below the clamping groove on the column.

[0014] The hanging rod on the protective net plate is placed in the clamping groove on the stand column, and the limiting assembly at the lower end of the stand column limits the movement of the protective net plate in the swinging direction, so that the protective net plate can be quickly installed between the stand columns, the stability of the protective net plate is maintained, and the convenience of installation of the protective device is improved.

[0015] Preferably, the stand column is internally fixedly connected with a piston cylinder, the piston cylinder is internally provided with a piston rod, one end of the piston rod in the piston cylinder is slidably connected with the inner wall of the piston cylinder through a piston plate thereon, and the other end of the piston rod is symmetrically provided with a guide frame, one end of the guide frame is rotatably connected with the piston rod, and the other end of the guide frame is lapped on the end portion of the stand column.

[0016] The piston plate is provided with a reset spring at the lower portion thereof, one end of the reset spring is in abutment with the piston plate, and the other end of the reset spring is fixedly connected with the bottom of the piston cylinder.

[0017] Preferably, the limiting assembly comprises a lifting cylinder, the lifting cylinder is fixedly installed in the stand column, and the lifting cylinder is provided with a lifting rod; one end of the lifting rod in the lifting cylinder is slidably connected with the inner wall of the lifting cylinder through a sliding plate; the cavity at the lower portion of the piston plate in the piston cylinder is communicated with the cavity at the lower portion of the sliding plate in the lifting cylinder through a pipeline; the other end of the lifting rod is fixedly connected with a limiting seat; a sliding groove is formed in the stand column; and one end of the limiting seat passes through the sliding groove and is slidably connected with the sliding groove.

[0018] Preferably, a flow limiting valve is arranged in the connecting pipeline of the piston cylinder and the lifting cylinder; and the flow passage cross-sectional area of the flow limiting valve is not more than 4 square millimeters.

[0019] Preferably, the limiting seat is in V-shaped arrangement, and the limiting seat is internally provided with a flexible convex strip.

[0020] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model relative to the prior art is:

[0021] 1、In the utility model, the bottom of the stand column is provided with a ground plug, when the protective device is used, the ground plug is inserted into the corresponding soil layer, then the grouting device is used to inject the reinforcing grout into the expansion member through the grouting seat, then the grouting rod is used to inject the grout for reinforcing the soil layer into the soil layer around the ground plug, so that the soil layer is reinforced, the ground plug and the surrounding soil layer are connected as a whole, and the installation stability of the ground plug and the stand column is improved.

[0022] By controlling the speed of grouting, the injected slurry exceeds all the slurry rods, and the expansion member is expanded, and as the expansion member expands, the grouting rod arranged on the surface thereof slides outward along the sliding hole and enters the soil layer, thereby enabling the grouting range to be wider, and the column can be connected with more reinforced soil layers, thereby improving the installation stability of the protection device and reducing the collapse caused by soil loosening.

[0023] 2、In the utility model, the column and the ground plug are clamped through the clamping seat and the clamping block, after grouting, the clamping block on the ground plug is moved to the position opposite the gap on the clamping seat by rotating the column, then the column can be lifted upward, at this time, the pipeline between the grouting seat and the ground plug is removed, then the column and the ground plug are clamped, when the position of the column needs to be moved later, the column can be removed by rotating the column, the ground plug after grouting is retained in the soil layer, and after a new ground plug is installed, installation work at a new position can be carried out.

[0024] 3、In the utility model, when the metal mesh plate is placed on the guide frame, under the action of gravity of the metal mesh plate, the piston rod moves downward, the piston plate is pressed downward, the medium in the lower part of the piston plate in the piston cylinder is transferred to the space in the lower part of the slide plate in the lifting cylinder through the pipeline, the slide plate moves upward, the lifting rod moves upward to drive the limiting seat to move upward, the lower end of the protective mesh plate is limited on the limiting seat, the lower end of the protective mesh plate is limited, the stability of the protective mesh is improved, and the installation is convenient and convenient.

[0025] 4、In the utility model, the flow limiting valve is arranged between the lifting cylinder and the piston cylinder, the falling speed of the metal mesh plate can be effectively controlled, after the metal mesh plate is placed on the guide frame, the piston rod does not fall rapidly, and the lower limiting seat does not rise rapidly, because the lower end of the metal mesh plate swings after the metal mesh plate is placed, if the limiting seat rises rapidly, the lower end of the metal mesh plate can be separated from the limiting seat, and the lower end limiting fails, therefore, the falling speed of the metal mesh plate and the rising speed of the limiting seat are slowed down through the arranged flow limiting valve, sufficient time is provided for the installer to stabilize the lower end of the metal mesh plate, the working reliability of the limiting seat is improved, and the installation stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model will be further described in connection with the drawings.

[0027] Figure 1 It is the first structure schematic view of the utility model protection device;

[0028] Figure 2 It is the second structure schematic view of protective device of the utility model;

[0029] Figure 3 It is the internal structure schematic view of protective device of the utility model;

[0030] Figure 4 It is the installation structure schematic view of guide frame of the utility model;

[0031] Figure 5 It is the first internal structure schematic view of ground plug of the utility model;

[0032] Figure 6 It is the installation structure schematic view of lifting cylinder of the utility model;

[0033] Figure 7 It is the second internal structure schematic view of ground plug of the utility model;

[0034] Figure 8 It is the installation structure schematic view of clamping seat of the utility model;

[0035] Figure 9 It is the installation structure schematic view of limiting seat of the utility model;

[0036] In the drawing: stand 1, protective net plate 2, ground plug 3, sliding hole 4, expansion piece 5, grouting rod 6, grouting seat 7, anti-blocking film 8, base plate 9, clamping seat 10, clamping block 11, hanging rod 12, clamping groove 13, piston cylinder 14, piston rod 15, guide frame 16, return spring 17, piston plate 18, lifting cylinder 19, lifting rod 20, limiting seat 21, sliding groove 22, flow limiting valve 23, flexible convex strip 24. DETAILED DESCRIPTION

[0037] The utility model will be further explained in detail in combination with examples.

[0038] Example 1:

[0039] As shown in Figure 1 , Figure 3 and Figure 5 , a protective device for building construction includes a plurality of stand 1 and installs protective net plate 2 between two adjacent stand 1; the bottom of stand 1 is provided with ground plug 3, and sliding hole 4 is uniformly and interval provided in the circumferential direction in ground plug 3; the inside of ground plug 3 is hollowly arranged;

[0040] As shown in Figure 5 and Figure 7 , the inside is provided with expansion piece 5, and grouting rod 6 is uniformly and interval arranged on the surface of expansion piece 5; grouting rod 6 is communicated with the inside of expansion piece 5; grouting rod 6 is slidably connected with sliding hole 4;

[0041] The expansion member 5 is provided with a feed inlet at its upper end. The column 1 is hollow inside and a grouting seat 7 is fixedly installed on the column 1. The grouting seat 7 is connected to the feed inlet through a pipe.

[0042] As shown in Figure 7, an anti-clogging membrane 8 is provided inside the sliding hole 4 at the outlet end of the grouting rod 6, and the thickness of the anti-clogging membrane is 2-5mm.

[0043] like Figure 8 and Figure 3 As shown, a base plate 9 is provided at the bottom of the column 1, and a card holder 10 is fixedly connected to the lower part of the base plate 9; a card block 11 is fixedly connected to the upper end of the ground plug 3; the ground plug 3 is engaged with the card holder 10 through the card block 11.

[0044] During construction, protective devices are required at the edges of foundation pits and slopes to prevent falls. Existing protective devices mostly consist of protective mesh panels placed at the required locations. However, due to the proximity to these edges, the soil is often loosened during construction, potentially causing the protective devices to collapse. Therefore, this solution involves installing a ground insert 3 at the base of column 1. When using the protective device, the ground insert 3 is inserted into the corresponding soil layer. Then, a grouting device, through the grouting seat 7, injects reinforcing grout into the expansion joint 5. Subsequently, the grouting rod 6 injects the reinforcing grout into the soil surrounding the ground insert 3, thus reinforcing the soil layer and connecting the ground insert 3 to the surrounding soil, improving the installation stability of the ground insert 3 and column 1. The reinforcing grout can be cement mortar, epoxy resin grout, or interface adhesive, etc.

[0045] By controlling the grouting speed, the injected grout exceeds the grout discharged by all the grouting rods 6, which causes the expansion member 5 to expand. As the expansion member 5 expands, the grouting rods 6 set on its surface slide outward along the sliding hole 4 and enter the soil layer. This allows for a wider grouting range, enabling the column 1 to connect with more reinforced soil layers, thereby improving the installation stability of the protective device and reducing its collapse caused by soil loosening.

[0046] During operation, to prevent soil from entering the grouting rod 6 during the insertion of the ground insert 3, an anti-blocking membrane 8 is installed at the outlet of the grouting rod 6. This prevents soil from blocking the anti-blocking membrane 8 during the insertion of the ground insert 3 into the ground. The membrane can be made of water-soluble material. During grouting, the anti-blocking membrane 8 can be dissolved by sprinkling a certain amount of water around the ground insert 3 before grouting can proceed. This improves the stability and quality of the grouting process.

[0047] In actual use, the position of the protective net plate 2 mounted on the upper part of the column 1 needs to be moved. In the present scheme, the column 1 is stably connected with the soil layer between the ground plug 3 and the ground. If the column 1 and the ground plug 3 are fixedly connected, it will be difficult to move. Therefore, in the present scheme, the column 1 and the ground plug 3 are connected through the clamping seat 10 and the clamping block 11. After grouting, the clamping block 11 on the ground plug 3 is moved to the position opposite the notch on the clamping seat 10 by rotating the column 1. Then the column 1 can be lifted upwards. At this time, the pipeline between the grouting seat 7 and the ground plug 3 is removed. Then the column 1 and the ground plug 3 are connected. When the position of the column 1 needs to be moved later, the column 1 can be removed by rotating the column 1. The grouted ground plug 3 is retained in the soil layer. After installing a new ground plug 3, the installation work at the new position can be carried out.

[0048] As shown in Figure 4 , the protective net plate 2 is symmetrically fixedly connected with a hanging rod 12 at the upper end; a clamping groove 13 is formed on one side of the column 1 near the protective net plate 2; and a limiting assembly for limiting the swing of the protective net plate 2 is arranged below the clamping groove 13.

[0049] In operation, the hanging rod 12 on the protective net plate 2 is placed in the clamping groove 13 on the column 1, and the limiting assembly at the lower end of the column 1 limits the movement of the protective net plate 2 in the swing direction, so that the protective net plate 2 can be quickly installed between the columns 1, and the stability of the protective net plate 2 is maintained, thereby improving the convenience of installation of the protective device.

[0050] Embodiment 2:

[0051] Based on embodiment 2, the present application provides another technical scheme, as shown in Figure 2 and Figure 5 , the column 1 is fixedly connected with a piston cylinder 14 inside; the piston cylinder 14 is provided with a piston rod 15 inside; one end of the piston rod 15 inside the piston cylinder 14 is slidably connected with the inner wall of the piston cylinder 14 through a piston plate 18 thereon; the other end of the piston rod 15 is symmetrically provided with a guide frame 16; one end of the guide frame 16 is rotatably connected with the piston rod 15, and the other end of the piston rod 15 is lapped on the end part of the column 1.

[0052] The piston plate 18 is provided with a reset spring 17 at the lower part; one end of the reset spring 17 is in contact with the piston plate 18; and the other end is fixedly connected with the bottom of the piston cylinder 14.

[0053] When working, due to the size limitation of the stand 1, the size of the clamping groove 13 is relatively small, and the hanging rod 12 is relatively difficult to be placed into the clamping groove 13 due to the weight of the protective mesh plate 2. Therefore, in the scheme, the guide frame 16 is arranged in the stand 1, and under the action of the reset spring 17, the piston rod 15 moves upward, and then the lower end point of the guide frame 16 moves upward, and then the guide frame 16 is opened to increase the coverage angle of the guide frame 16, so as to facilitate the placement of the hanging rod 12 on the guide frame 16. When the hanging rod 12 is placed on the guide frame 16, under the action of gravity, the hanging rod 12 moves towards the middle of the two guide frames 16, and then the piston rod 15 moves downward, and then the hanging rod 12 enters the clamping groove 13, and the installation of the hanging rod 12 is completed. In this way, the convenience of installing the hanging rod 12 into the clamping groove 13 is improved, the installation efficiency is improved, and the installation difficulty is reduced.

[0054] As shown in Figure 6 and Figure 9 , the limiting assembly includes a lifting cylinder 19 fixedly installed in the stand 1, and the lifting cylinder 19 is provided with a lifting rod 20. One end of the lifting rod 20 located in the lifting cylinder 19 is slidably connected with the inner wall of the lifting cylinder 19 through a sliding plate. The cavity in the piston plate 18 at the lower part of the piston plate 18 is communicated with the cavity at the lower part of the sliding plate in the lifting cylinder 19 through a pipeline. The other end of the lifting rod 20 is fixedly connected with a limiting seat 21. A sliding groove 22 is formed in the stand 1. One end of the limiting seat 21 penetrates through the sliding groove 22 and is slidably connected with the sliding groove 22. The limiting seat 21 is V-shaped, and the limiting seat 21 is provided with a flexible protruding strip 24.

[0055] When the metal mesh plate is placed on the guide frame 16, under the action of the gravity of the metal mesh plate, the piston rod 15 moves downward, and then the piston plate 18 is pressed downward, and then the medium at the lower part of the piston plate 18 in the piston cylinder 14 is transferred to the space at the lower part of the sliding plate in the lifting cylinder 19 through the pipeline, and then the sliding plate moves upward, and then the lifting rod 20 moves upward to drive the limiting seat 21 to move upward, and then the lower end of the protective mesh plate 2 is limited on the limiting seat 21 to limit the lower end of the protective mesh plate 2, and then the stability of the protective mesh plate is realized by relying on the self-weight limiting mode, and the installation convenience and convenience are improved.

[0056] In order to prevent the limiting seat 21 from not being able to better limit the protective mesh plate, or there is a gap between the protective mesh plate and the limiting seat 21, causing the protective mesh plate 2 to make a metal collision sound in the use process due to the existence of the gap, the flexible protruding strip 24 is arranged in the limiting seat 21, and the flexible protruding strip 24 can better limit and prevent noise.

[0057] Embodiment 3:

[0058] On the basis of embodiment 2, the application provides another technical scheme, as shown in Figure 2 The connecting pipeline between the piston cylinder 14 and the lifting cylinder 19 is provided with a flow limiting valve 23; the flow passage cross-sectional area of the flow limiting valve 23 is not more than 4 square millimeters.

[0059] During operation, by arranging the flow limiting valve 23 between the lifting cylinder 19 and the piston cylinder 14, the falling speed of the metal mesh plate can be effectively controlled, and then after the metal mesh plate is placed on the guide frame 16, the piston rod 15 does not fall quickly, and then the lower limit seat 21 does not rise quickly, because after the metal mesh plate is placed, the lower end will have a certain swing, if the limit seat 21 rises quickly, there will be a risk that the lower end of the metal mesh plate is separated from the limit seat 21, causing the lower end to lose the limit, therefore, by arranging the flow limiting valve 23, the falling speed of the metal mesh plate and the rising speed of the limit seat 21 are slowed down, and then sufficient time can be provided for the installer to stabilize the lower end of the metal mesh plate, and then the working reliability of the limit seat 21 is improved, and the stability of installation is improved.

[0060] The application has been described in detail above, but some modifications or improvements can be made on the basis of the application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the application are within the protection scope of the application.

Claims

1. A protective device for construction work, comprising a plurality of uprights (1) and a protective screen (2) mounted between two adjacent uprights (1); characterized in that: The bottom of the column (1) is provided with a ground plug (3), and sliding holes (4) are uniformly and circumferentially arranged on the ground plug (3); the ground plug (3) is internally hollow; The inside of the ground plug (3) is provided with an expansion piece (5), and grouting rods (6) are uniformly and circumferentially arranged on the surface of the expansion piece (5); the grouting rods (6) are in communication with the inside of the expansion piece (5); the grouting rods (6) are in sliding connection with the sliding holes (4); The upper end of the expansion piece (5) is provided with an inlet, the inside of the column (1) is hollow, and a grouting seat (7) is fixedly installed on the column (1); the grouting seat (7) is in communication with the inlet through a pipeline.

2. A protective device for use in construction according to claim 1, characterized in that: The outlet end of the grouting rod (6) in the sliding hole (4) is provided with an anti-blocking film (8), and the thickness of the anti-blocking film (8) is 2-5mm.

3. A protective device for use in construction according to claim 2, characterized in that: The bottom of the column (1) is provided with a base plate (9), and the lower part of the base plate (9) is fixedly connected with a clamping seat (10); the upper end of the ground plug (3) is fixedly connected with a clamping block (11); the ground plug (3) is clamped with the clamping block (11) and the clamping seat (10) through the clamping block (11) thereon.

4. A protective device for use in building construction according to claim 3, characterised in that: The upper end of the protective net plate (2) is fixedly connected with a hanging rod (12) on both sides in a symmetrical manner; a clamping groove (13) is formed on one side of the column (1) near the protective net plate (2), and a limiting assembly for limiting the swing of the protective net plate (2) is arranged below the clamping groove (13) on the column (1).

5. A protective device for use in building construction according to claim 4, characterised in that: The inside of the column (1) is fixedly connected with a piston cylinder (14), the inside of the piston cylinder (14) is provided with a piston rod (15), one end of the piston rod (15) in the inside of the piston cylinder (14) is in sliding connection with the inner wall of the piston cylinder (14) through a piston plate (18) thereon; the other end of the piston rod (15) is symmetrically provided with a guide frame (16), one end of the guide frame (16) is rotatably connected with the piston rod (15), and the other end of the piston rod (15) is lapped on the end part of the column (1); The lower part of the piston plate (18) is provided with a reset spring (17); one end of the reset spring (17) is in abutment with the piston plate (18); and the other end is fixedly connected with the bottom of the piston cylinder (14).

6. A protective device for use in building construction according to claim 5, characterised in that: The limiting assembly comprises a lifting cylinder (19), the lifting cylinder (19) is fixedly installed in the inside of the column (1), and the lifting cylinder (19) is provided with a lifting rod (20); one end of the lifting rod (20) in the inside of the lifting cylinder (19) is in sliding connection with the inner wall of the lifting cylinder (19) through a sliding plate; a cavity below the piston plate (18) in the inside of the piston cylinder (14) is in communication with a cavity below the sliding plate in the inside of the lifting cylinder (19) through a pipeline; the other end of the lifting rod (20) is fixedly connected with a limiting seat (21); a sliding groove (22) is formed on the column (1); one end of the limiting seat (21) penetrates through the sliding groove (22) and is in sliding connection with the sliding groove (22).

7. A protective device for use in building construction according to claim 6, characterised in that: The flow limiting valve (23) is arranged in the connecting pipeline of the piston cylinder (14) and the lifting cylinder (19); the flow passage cross-sectional area of the flow limiting valve (23) is not more than 4 square millimeters.

8. A protective device for use in construction according to claim 7, characterized in that: The limiting seat (21) is arranged in a V shape, and a flexible convex strip (24) is arranged in the limiting seat (21).

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