Safety protection device for construction

Abstract

The utility model discloses a safety device for building construction belongs to building construction safety technical field. Including splicing frame and guiding position protection integrated structure can: splicing piece is combined with the locating peg through multiple rows of connecting holes and becomes the adjustable frame of 600-1800mm side length, and the bottom end of support plate is fixed on the ground through the locating hole with antiskid pad, and the guiding position structure contains the L type board with semicircle guide groove, and the angle fine adjustment of plus or minus 15 degrees is realized through the up and down screw rod drive U type board, and the screw rod adapts standard wrench and the position accuracy reaches plus or minus 0.5 degrees, and the protection subassembly includes 15-20mm thick nitrile rubber buffer layer and detachable steel pipe guardrail, can absorb 30% collision energy and satisfy 1.2m height protection requirement, and the device adapts 200mm*300mm to 1000mm*1200mm prefabricated column, and the steel is hot galvanizing treatment, and the overall thrust resistance is greater than or equal to 5000N, and has the functions of accurate positioning and three -dimensional protection, and the construction safety and efficiency are improved.

Description

Technical Field

[0001] A safety protection device for building construction. This utility model belongs to the field of building construction safety technology, specifically relating to a cement precast column installation device with adjustable positioning, angle fine adjustment and collision protection functions, which is suitable for the precise installation and construction safety protection of precast columns in industrial buildings. Background Technology

[0002] In building construction, the installation quality of precast concrete columns directly affects structural safety. Existing positioning devices generally suffer from the following problems: Insufficient compatibility: Traditional frame structures are fixed and can only accommodate precast columns of a single size. When a building needs to install columns of different cross-sectional sizes (such as 200mm×300mm to 1000mm×1200mm), the equipment needs to be changed frequently, resulting in low construction efficiency.

[0003] Poor angle adjustment accuracy: Most existing guide structures are fixed, which cannot achieve dynamic fine adjustment of the installation angle of precast columns, making it difficult to meet the requirement of verticality deviation ≤H / 1000 in the "Code for Acceptance of Construction Quality of Concrete Structures" (GB50204) (H is the column height).

[0004] Lack of safety protection: During hoisting, precast columns are prone to rigid collisions with positioning devices, which may cause damage to the columns or personnel safety risks. In addition, the lack of a three-dimensional protective structure makes it impossible to meet the safety regulations for high-altitude operations.

[0005] To address the aforementioned shortcomings, this utility model provides an integrated device that combines an adjustable frame, angle fine-tuning, and collision protection, thereby improving the safety and efficiency of building construction. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the existing defects and provide a safety protection device for building construction, thereby solving the problems of insufficient specification adaptability, poor angle adjustment accuracy and lack of safety protection in existing positioning devices.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A safety protection device for building construction includes a splicing component and an integrated structure for guiding and adjusting protection. The splicing component includes a horizontal plate, connecting plates symmetrically arranged on both sides of the horizontal plate, and a support plate vertically fixed to the bottom end of the horizontal plate. The connecting plate has at least three rows of connecting holes evenly distributed along the length of the horizontal plate. Adjacent splicing parts are connected by threaded bolts passing through the corresponding connecting holes to form a rectangular frame with adjustable side length. The bottom plate at the bottom end of the support plate is provided with a positioning hole, into which anchor bolts can be inserted to fix the frame to the ground, and a rubber anti-slip pad is provided between the bottom plate and the ground. The integrated guide, adjustment, and protection structure is installed on the top of the horizontal plate of the splicing component and includes a guide component, an adjustment component, and a protection component.

[0008] As a preferred technical solution of this utility model, the guide component includes an L-shaped plate arranged parallel to the horizontal plate; the inner side of the vertical surface of the L-shaped plate is provided with a semi-circular arc-shaped guide groove adapted to the corner of the precast column, and the surface roughness Ra of the semi-circular arc-shaped guide groove is ≤6.3μm. The horizontal plane of the L-shaped plate is connected to the horizontal plate through a U-shaped plate, and the opening of the U-shaped plate faces the center of the frame.

[0009] As a preferred technical solution of this utility model, the adjustment component includes an upper adjustment structure and a lower adjustment structure symmetrically arranged, and screw holes are provided on the horizontal plate at the positions corresponding to the upper and lower adjustment structures. Both the upper and lower adjustment structures include a screw rod, one end of which is threadedly connected to a screw hole, and the other end is rotatably connected to a rotating shaft inside the U-shaped plate via a locking pin. The two ends of the rotating shaft are fixed to the inner wall of the U-shaped plate, and the middle is fitted with a collar that can slide axially. One end of the locking post is fixed to the collar, and the other end is embedded in the groove at the end of the screw to form a rotating pair.

[0010] As a preferred technical solution of this utility model, the fitting accuracy between the screw and the screw hole is 6g / 6H grade, the screw pitch is 2mm, and one rotation can cause the end of the L-shaped plate to produce a horizontal displacement of 1.5-2.5mm. The exposed end of the screw is provided with a regular hexagonal drive head, and the distance between opposite sides of the drive head is 19-24mm, which is compatible with standard wrench operation.

[0011] As a preferred technical solution of this utility model, the protective component includes an elastic buffer layer covering the outer side of the vertical surface of the L-shaped plate. The elastic buffer layer is made of nitrile rubber with a Shore hardness of 60-70A and a thickness of 15-20mm. The surface of the elastic buffer layer is provided with cross-shaped anti-slip texture, and the texture depth is 3-5mm. A protective railing can be detachably installed on the top of the frame. The protective railing is welded from steel pipes, with a height of ≥1.2m, a horizontal bar spacing of ≤400mm, and a vertical bar spacing of ≤500mm.

[0012] As a preferred technical solution of this utility model, the splicing parts, U-shaped plates and screws are all made of Q235B steel, and the surface is hot-dip galvanized with a coating thickness of ≥85μm. The positioning bolt is an 8.8 grade high-strength bolt with a thread specification of M16-M20 and a fitting clearance of ≤0.5mm with the connecting hole.

[0013] As a preferred technical solution of this utility model, the frame can be combined into a square or rectangular structure with a side length of 600-1800mm by increasing or decreasing the number of splicing parts, which is suitable for the installation of prefabricated columns with cross-sectional dimensions of 200mm×300mm to 1000mm×1200mm. The L-shaped plate has an adjustment angle range of -15° to +15°, which can meet the installation accuracy requirement of precast column verticality deviation ≤ H / 1000 (H is the column height).

[0014] Compared with the prior art, the beneficial effects of this utility model are: by flexibly combining connecting holes and splicing parts, the number of device models is reduced, construction costs are reduced by more than 30%, the screw-driven adjustment mechanism achieves precise angle control, the verticality deviation is better than the standard requirements, avoiding construction delays caused by rework, the elastic buffer layer reduces the risk of collision damage, and the guardrail constructs a three-dimensional safety barrier, which meets the safety management requirements of modern building construction. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a partial enlarged view of end A1 of this utility model; Figure 4 This is a partial enlarged view of end A2 of this utility model; 1-Assembly piece; 2-Integrated guide and adjustment structure; 3-Positioning hole; 4-Horizontal plate; 5-Connecting hole; 6-Support plate; 7-Connecting plate; 8-Positioning bolt; 9-L-shaped plate; 10-U-shaped plate; 11-Upper adjustment structure; 12-Lower adjustment structure; 13-Screw hole; 14-Rotating shaft; 15-Collar ring; 16-Clamping post; 17-Screw rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: A safety protection device for building construction includes a splicing component 1 and an integrated guiding, adjusting, and protective structure 2, as detailed below: Assembly Component 1: It consists of a horizontal plate 4, symmetrically arranged connecting plates 7 and support plates 6, forming a "T"-shaped basic unit.

[0018] The connecting plate 7 has at least three rows of evenly distributed connecting holes 5 along the length of the horizontal plate, with a hole spacing of 100-200mm. Adjacent splicing parts are connected by 8.8 grade high-strength positioning bolts 8 with thread specifications M16-M20 passing through the corresponding connecting holes. They can be combined to form a square or rectangular frame with a side length of 600-1800mm, and are suitable for precast columns with cross-sectional dimensions of 200mm×300mm to 1000mm×1200mm.

[0019] The bottom plate of the support plate 6 has positioning holes 3 and is fixed to the ground by anchor bolts. A rubber anti-slip pad 18 with a thickness of 5-8mm is placed between the bottom plate and the ground, with a friction coefficient ≥0.6, to prevent the device from slipping.

[0020] 2. Integrated structure for guidance, positioning, and protection Guiding components: The inner side of the vertical surface of the L-shaped plate 9 is provided with a semi-circular arc-shaped guide groove 91 that matches the corner of the precast column. The groove width is 2-3mm larger than the corner width of the precast column, and the inner surface roughness Ra≤6.3μm, which reduces the frictional resistance during hoisting.

[0021] The L-shaped slab is connected to the horizontal slab 4 via the U-shaped slab 10. The opening of the U-shaped slab faces the center of the frame, forming a three-sided guide for the precast column.

[0022] Positioning component: The upper adjustment structure 11 and the lower adjustment structure 12 are symmetrically distributed above and below the horizontal plate 4, and both include screws 17.

[0023] One end of the screw is threaded into the screw hole 13 of the horizontal plate with a precision of 6g / 6H and a pitch of 2mm. The other end is connected to the rotating shaft 14 inside the U-shaped plate via a retaining post 16. The two ends of the rotating shaft are fixed to the inner wall of the U-shaped plate, and the middle is fitted with a collar 15 that can slide axially. One end of the locking post is fixed to the collar, and the other end is embedded in the groove at the end of the screw to form a rotating pair, allowing the U-shaped plate to swing around the rotating shaft when the screw rotates.

[0024] The exposed end of the screw is equipped with a regular hexagonal drive head 171 with a side-to-side distance of 19-24mm, which is compatible with standard wrench operation. One rotation can produce a horizontal displacement of 1.5-2.5mm at the end of the L-shaped plate, corresponding to an adjustment angle range of -15° to +15°.

[0025] Protective components: The elastic buffer layer 19 covers the outer side of the vertical surface of the L-shaped plate. It is made of nitrile rubber with a Shore hardness of 60-70A, with a thickness of 15-20mm and cross-shaped anti-slip texture 191 with a depth of 3-5mm on the surface. It can absorb ≥30% of the lifting collision energy and increase the friction between the precast column and the device.

[0026] The detachable guardrail 20 is fixed to the top of the frame with bolts. It is made of Φ48mm steel pipe, 1.2m high, with horizontal bar spacing of 400mm and vertical bar spacing of 500mm, which meets the edge protection requirements in the "Technical Specification for Safety of High-Altitude Operations in Building Construction" JGJ80-2016.

[0027] 3. Materials and Processes The splicing parts, U-shaped plates and screws are made of Q235B steel, with a hot-dip galvanized coating thickness of ≥85μm and a salt spray corrosion resistance of ≥1000 hours.

[0028] The gap between the positioning bolt and the connecting hole is ≤0.5mm to ensure the rigidity of the frame connection. The overall structure can withstand a horizontal thrust of ≥5000N.

[0029] Assembly frame construction of the device: Based on the precast column cross-section dimensions, select the appropriate row of connection holes 5 on the connection plate 7, and assemble the 4 splicing parts into a rectangular frame using M16 positioning bolts. For example, if the precast column cross-section is 600mm×800mm, the frame side length is adjusted to 800mm×1000mm.

[0030] Insert the anchor bolts through the positioning hole 3 to fix the frame in the installation position. Use a level to calibrate the horizontal plate to ensure the error is ≤2mm, and tighten the nuts under the rubber anti-slip pads to enhance stability.

[0031] Installation of guide and adjustment structure: The U-shaped plate 10 is connected to the horizontal plate 4 by the screw 17. In the initial state, the screw is screwed into the screw hole to a depth of 1 / 2 of the total length, so that the L-shaped plate 9 is perpendicular to the horizontal plate.

[0032] Apply the elastic buffer layer 19 to the vertical surface of the L-shaped plate, ensuring that the anti-slip texture faces the center of the frame.

[0033] Precast column installation process Guidance Phase: Start the hoisting equipment and slowly lift the precast column to the top of the frame, aligning the corners of the column with the guide groove 91 of the L-shaped plate, and lower it along the guide groove until it contacts the ground.

[0034] When the elastic buffer layer 19 comes into contact with the column, it provides friction through anti-slip texture, slowing down the hoisting speed and initially positioning the column.

[0035] Angle fine-tuning stage: Use a wrench to rotate the screw 17 of the upper adjustment structure 11 and the lower adjustment structure 12: If it is necessary to increase the rightward tilt angle of the precast column, rotate the upper adjusting screw clockwise and the lower adjusting screw counterclockwise to raise the right end of the L-shaped plate and lower the left end; The verticality of the column is monitored in real time using a theodolite until the deviation is ≤H / 1000. For example, if the column height is 10m, the deviation should be ≤10mm.

[0036] Fixing and Protection Phase: After confirming that the position is correct, tighten all positioning bolts 8 and screws 17 to ensure that the frame and the adjustment structure are locked.

[0037] Install guardrails 20 at the top of the frame to form a closed protective area to prevent construction workers from accidentally touching or falling.

[0038] Applicable Scenarios Standard building column installation: Compatible with rectangular and I-shaped precast columns, reducing the installation time of a single column by 40% compared to traditional methods.

[0039] Inclined column or high-precision installation: With ±15° adjustment function, it meets the installation requirements of special components such as corbel columns and seismic bracing columns in industrial buildings.

[0040] Construction in high-risk environments: In scenarios with wind speeds ≤10.7m / s (level 6 wind) or ground flatness deviations ≤5mm, the device has an overturning safety factor ≥1.5, ensuring construction safety.

[0041] 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. A safety protection device for building construction, comprising splicing components (1) and an integrated guiding and adjusting protection structure (2), characterized in that: The splicing component (1) includes a horizontal plate (4), connecting plates (7) symmetrically arranged on both sides of the horizontal plate, and a support plate (6) vertically fixed to the bottom end of the horizontal plate. The connecting plate (7) has at least three rows of connecting holes (5) evenly distributed along the length of the horizontal plate. Adjacent splicing parts (1) are threaded together by the positioning bolts (8) passing through the corresponding connecting holes (5) to form a rectangular frame with adjustable side length. The bottom plate at the bottom end of the support plate (6) is provided with a positioning hole (3). Anchor bolts can be inserted into the positioning hole (3) to fix the frame to the ground, and a rubber anti-slip pad (18) is provided between the bottom plate and the ground. The integrated structure (2) for guiding, adjusting and protecting is installed on the top of the horizontal plate (4) of the splicing component (1), and includes a guiding component, an adjusting component and a protective component.

2. The safety protection device for building construction according to claim 1, characterized in that: The guide assembly includes an L-shaped plate (9) arranged parallel to the horizontal plate (4); The horizontal plane of the L-shaped plate (9) is connected to the horizontal plate (4) through the U-shaped plate (10), and the opening of the U-shaped plate (10) faces the center of the frame.

3. A safety protection device for building construction according to claim 2, characterized in that: The adjustment assembly includes an upper adjustment structure (11) and a lower adjustment structure (12) arranged symmetrically. The horizontal plate (4) has screw holes (13) at positions corresponding to the upper adjustment structure (11) and the lower adjustment structure (12). Both the upper adjustment structure (11) and the lower adjustment structure (12) include a screw (17). One end of the screw (17) is threadedly connected to the screw hole (13), and the other end is rotatably connected to the rotating shaft (14) inside the U-shaped plate (10) through the locking pin (16). The two ends of the rotating shaft (14) are fixed to the inner wall of the U-shaped plate (10), and the middle is fitted with an axially sliding collar (15). One end of the locking post (16) is fixed to the collar (15), and the other end is embedded in the groove at the end of the screw (17) to form a rotating pair.

4. A safety protection device for building construction according to claim 3, characterized in that: The fitting accuracy between the screw (17) and the screw hole (13) is 6g / 6H grade, the screw pitch is 2mm, and rotating one revolution can cause the end of the L-shaped plate (9) to produce a horizontal displacement of 1.5-2.5mm.

5. A safety protection device for building construction according to claim 2, characterized in that: The protective component includes an elastic buffer layer (19) covering the outer side of the vertical surface of the L-shaped plate (9). The elastic buffer layer (19) is made of nitrile rubber with a Shore hardness of 60-70A and a thickness of 15-20mm. The surface of the elastic buffer layer (19) is provided with cross-shaped anti-slip texture (191), and the texture depth is 3-5mm; The top of the frame can be detachably installed with a guardrail (20), which is made of welded steel pipe, with a height ≥1.2m, a horizontal bar spacing ≤400mm, and a vertical bar spacing ≤500mm.

6. A safety protection device for building construction according to claim 1, characterized in that: The splicing component (1), U-shaped plate (10) and screw (17) are all made of Q235B steel and the surface is hot-dip galvanized with a coating thickness of ≥85μm; The positioning bolt (8) is an 8.8 grade high-strength bolt with a thread specification of M16-M20 and a fitting clearance of ≤0.5mm with the connecting hole (5).

7. A safety protection device for building construction according to any one of claims 2-5, characterized in that: The frame can be combined into a square or rectangular structure with a side length of 600-1800mm by increasing or decreasing the number of splicing parts (1), which is suitable for the installation of prefabricated columns with a cross-sectional size of 200mm×300mm to 1000mm×1200mm. The adjustment angle range of the L-shaped plate (9) is -15° to +15°, which can meet the installation accuracy requirements of the precast column verticality deviation ≤ H / 1000, where H is the column height.

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