A reusable construction opening protection device

Abstract

The utility model discloses a kind of construction hole protection devices of turnover, belong to building engineering technical field, including protective screen cover, support base frame, bottom strip, baffle, stop block and abutting assembly;In the present application, baffle is adjusted position by through slot sliding, so that stop block is tightly attached to hole side wall, which can cover different size of hole, without relying on embedded part, solve the dependency of prior art to reserved structure.Secondly, using the integrated installation process of placement, sliding, tightening, compared with traditional embedded part step-by-step installation mode, improve construction efficiency, especially suitable for multi-hole continuous operation.Abutting assembly uses the mechanical locking mode of screw driving, by screwing abutting piece directly compresses baffle, forms rigid constraint, avoids protection device displacement, while ensuring disassembly convenience.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a reusable construction opening protection device. Background Technology

[0002] During construction, openings (such as elevator shafts, pipe shafts, and stair edges) are high-risk areas for falls from heights. Traditional protection methods often involve temporary railings made of steel pipes or wooden planks, which suffer from low installation and dismantling efficiency, poor reusability, and insufficient protective strength. Especially for irregularly shaped openings or work surfaces that require frequent opening and closing, existing devices are often difficult to adapt flexibly and lack standardized design, easily leading to safety hazards such as excessive protective gaps or insufficient stability.

[0003] CN217537993U discloses a safety protection device for a horizontal opening in a construction work area, including a steel reinforcement protective mesh cover and a base support. Multiple embedded parts are arranged around the horizontal opening. The base support is a rectangular ring structure that is detachably connected to the multiple embedded parts. The steel reinforcement protective mesh cover is installed on the top of the base support and is formed by two symmetrical triangular sidewalls and two trapezoidal sidewalls.

[0004] The aforementioned existing technology has the following problems: Before actual use, embedded parts need to be installed around the opening first, and then the protective device is connected to the embedded parts. This makes it unsuitable for existing buildings or temporary renovation projects without pre-embedded parts, limiting the versatility and flexibility of the device.

[0005] The installation of embedded parts and the connection of subsequent protective devices need to be carried out in steps, which increases the complexity of the process. Especially when working with multiple openings, the overall construction efficiency is affected. Utility Model Content

[0006] The purpose of this utility model is to provide a reusable construction opening protection device, which solves the problems of insufficient versatility and flexibility of existing devices and complex installation procedures.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A reusable construction opening protection device includes a protective mesh cover and a supporting base frame. The supporting base frame is located at the bottom of the protective mesh cover and has a rectangular structure. The supporting base frame includes four bottom strips respectively connected to the bottom of the protective mesh cover. Each bottom strip has a through groove. A baffle that can extend into the interior space of the protective mesh cover is slidably disposed in the through groove. One end of the baffle located in the interior space has a downwardly extending stop block. Each bottom strip has a clamping component near the through groove. The clamping component includes a clamping block and a clamping member. The clamping block has a threaded hole. The arrangement direction of the threaded hole is perpendicular to the sliding direction of the baffle. The clamping member is threadedly connected to the threaded hole. The baffle slides within the through groove so that the stop block contacts the side wall of the construction opening, and the abutment is threaded into the threaded hole and abuts against the baffle to limit the displacement of the baffle.

[0008] A further technical solution is that the clamping element is a wing bolt.

[0009] A further technical solution is that the number of the clamping components is two, and they are respectively located on both sides of the through groove.

[0010] A further technical solution is that the two clamping blocks and the two clamping members are respectively disposed on both sides of the through groove.

[0011] A further technical solution is that the protective mesh cover is made of welded steel bars.

[0012] A further technical solution is that the protective mesh cover consists of four triangular sidewalls and a rectangular bottom wall.

[0013] A further technical solution is that the protective netting includes a top frame and a bottom frame; the frame area of ​​the bottom frame is smaller than that of the top frame; the top frame is located above the bottom frame; the top frame and the bottom frame are connected by four inclined columns; the tops of the four inclined columns are connected together.

[0014] A further technical solution is that multiple reinforcing ribs are provided on each of the triangular sidewalls; the multiple reinforcing ribs are connected to the protective mesh cover.

[0015] A further technical solution is that the protective netting is equipped with hanging rings.

[0016] Compared with the prior art, the beneficial effects of this utility model are: In this application, the baffle's position is adjusted by sliding along a through groove, allowing the stop block to fit tightly against the sidewall of the opening. This allows for the coverage of openings of different sizes without relying on pre-embedded parts, thus solving the dependence on pre-reserved structures in existing technologies. Secondly, the integrated installation process of placement, sliding, and tightening improves construction efficiency compared to the traditional step-by-step installation method using pre-embedded parts, making it particularly suitable for continuous operation with multiple openings. The clamping component uses a threaded mechanical locking method, directly pressing the baffle by tightening the clamping component to form a rigid constraint, preventing displacement of the protective device while ensuring convenient assembly and disassembly. Attached Figure Description

[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration: Figure 1 This is a three-dimensional drawing of the present invention.

[0018] Figure 2 This is a three-dimensional view of the protective mesh cover of this utility model.

[0019] Figure 3 This is a three-dimensional view showing the connection between the bottom strip and the clamping component of this utility model.

[0020] Figure 4 This is a three-dimensional view of the bottom strip of this utility model.

[0021] Icons: 1-Protective net cover, 2-Supporting base frame, 3-Bottom strip, 4-Through groove, 5-Baffle, 6-Stop block, 7-Clamping block, 8-Threaded hole, 9-Clamping component, 10-Top frame, 11-Bottom frame, 12-Inclined column, 13-Reinforcing rib, 14-Lifting ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Example: like Figures 1-4As shown, this utility model provides a reusable construction opening protection device, including a protective net cover 1 and a supporting base frame 2; the supporting base frame 2 is located at the bottom of the protective net cover 1 and has a rectangular structure; the supporting base frame 2 includes four bottom strips 3 respectively connected to the bottom of the protective net cover 1; each bottom strip 3 has a through groove 4; a baffle 5 that can extend into the internal space of the protective net cover 1 is slidably arranged in the through groove 4; a downwardly extending stop block 6 is provided at one end of the baffle 5 located in the internal space; each bottom strip 3 is provided with a clamping component near the through groove 4; the clamping component includes a clamping block 7 and a clamping member 9; the clamping block 7 has a threaded hole 8; the arrangement direction of the threaded hole 8 is perpendicular to the sliding direction of the baffle 5; the clamping member 9 is threadedly connected to the threaded hole 8; The baffle 5 slides within the through groove 4 so that the stop block 6 contacts the side wall of the construction opening, and the clamping member 9 is threaded into the threaded hole 8 and clamps against the baffle 5 to limit the displacement of the baffle 5.

[0024] The principles and beneficial effects of the above technical solution: The protective device of this application is placed over the construction opening and then the baffle 5 in the sliding groove is slid from four directions. The stop block 6 at the end of the baffle 5 can directly abut against the side wall of the opening as it slides. After the stop block 6 contacts the side wall of the opening, the abutment 9 is rotated to push it along the threaded hole 8 perpendicular to the sliding direction of the baffle 5, applying positive pressure to the baffle 5. This mechanical locking method utilizes the self-locking characteristic of threaded transmission, and can achieve rigid fixation through the device's own structure without the need for external embedded parts. This allows the entire device to flexibly adjust the extension length of the baffle 5 according to the size of the opening, improving its versatility.

[0025] In this application, the baffle 5 is slidably adjusted in position via the through groove 4, allowing the stop block 6 to fit tightly against the side wall of the opening. This allows for the coverage of openings of different sizes without relying on pre-embedded parts, thus solving the dependence on pre-reserved structures in existing technologies. Secondly, the integrated installation process of placement, sliding, and tightening improves construction efficiency compared to the traditional step-by-step installation method using pre-embedded parts, making it particularly suitable for continuous operation with multiple openings. The clamping component uses a threaded mechanical locking method, directly pressing the baffle 5 by screwing on the clamping part 9 to form a rigid constraint, preventing displacement of the protective device while ensuring convenient assembly and disassembly.

[0026] In this embodiment, the clamping member 9 is a wing bolt.

[0027] The principles and beneficial effects of the above technical solution: A wing-shaped bolt is used as the clamping element 9. Its large wing-like structure provides a larger contact surface for stress, allowing operators to quickly tighten it without tools. When the thread of the wing-shaped bolt engages with the clamping block 7, sufficient axial pressure is generated by manual rotation, forcing the baffle 5 to fit tightly against the side wall of the opening, forming a stable mechanical lock. This design simplifies the operation process while ensuring uniform distribution of locking force, avoiding deformation or slippage caused by localized stress concentration.

[0028] In this embodiment, there are two abutting components, which are respectively located on both sides of the through groove 4; specifically, the two abutting blocks 7 and the two abutting members 9 are respectively located on both sides of the through groove 4.

[0029] The principles and beneficial effects of the above technical solution: Symmetrical double-clamping components are arranged on both sides of the through groove 4 to form a bidirectional clamping force field, ensuring balanced force on the baffle 5. When the clamping components 9 on both sides are screwed in simultaneously, the baffle 5 is subjected to symmetrical compression, avoiding deflection or jamming caused by unilateral pressure. This layout increases the contact area between the baffle 5 and the through groove 4, resulting in a more uniform distribution of frictional resistance and thus improving the overall resistance to displacement.

[0030] In this embodiment, the protective net cover 1 is made of welded steel bars, and the steel bars are scrap steel bars used in construction.

[0031] The principles and beneficial effects of the above technical solution: Scrap steel bars from the construction site were used as the mesh cover material, forming a grid structure through cold bending and welding. The scrap steel bars were screened to retain their mechanical properties, and the welded joints were fully welded for reinforcement, ensuring overall rigidity. This design utilizes waste resources while meeting protective strength requirements through structural optimization.

[0032] In this embodiment, the protective net cover 1 consists of four triangular sidewalls and a rectangular bottom wall.

[0033] The principles and beneficial effects of the above technical solution: The pyramidal geometry distributes stress through triangular sidewalls, with the top load transferred diagonally to the base frame. The rectangular base wall perfectly matches the supporting base frame 2, forming a closed stress loop. This space truss structure utilizes the principle of triangular stability to significantly improve bending and torsional resistance.

[0034] In this embodiment, the protective net cover 1 includes a top frame 10 and a bottom frame 11; the frame area of ​​the bottom frame 11 is smaller than the frame area of ​​the top frame 10; the top frame 10 is located above the bottom frame 11; the top frame 10 and the bottom frame 11 are connected by four inclined columns 12; the tops of the four inclined columns 12 are connected together.

[0035] The principles and beneficial effects of the above technical solution: The top frame 10 expands to form a protective cover, while the bottom frame 11 contracts to match the opening size. Four inclined columns 12 are connected in the form of a space truss. The tops of the inclined columns 12 converge to form a rigid node, and the load is axially transferred to the bottom through the inclined columns 12, avoiding moment concentration. This variable cross-section design optimizes the force flow path.

[0036] In this embodiment, multiple reinforcing ribs 13 are provided on each of the triangular sidewalls; the multiple reinforcing ribs 13 are connected to the protective net cover 1.

[0037] The principles and beneficial effects of the above technical solution: Radial reinforcing ribs 13 are welded inside the triangular sidewalls, upgrading the single-layer mesh into a composite load-bearing system. The reinforcing ribs 13 intersect with the main ribs at angles, forming a spatial truss through nodal welding. This structure allows localized impact loads to be rapidly distributed across the entire mesh surface.

[0038] In this embodiment, the protective net cover 1 is provided with a hanging ring 14.

[0039] The principles and beneficial effects of the above technical solution: A lifting ring 14 is welded to the top of the mesh cover to facilitate transfer by tower crane.

[0040] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A reusable construction opening protection device, characterized in that, The device includes a protective mesh cover and a supporting base frame. The supporting base frame is located at the bottom of the protective mesh cover and has a rectangular structure. The supporting base frame includes four bottom strips that are respectively connected to the bottom of the protective mesh cover. Each bottom strip has a through groove. A baffle that can extend into the internal space of the protective mesh cover is slidably disposed in the through groove. One end of the baffle located in the internal space has a downwardly extending stop. Each bottom strip has a clamping component near the through groove. The clamping component includes a clamping block and a clamping member. The clamping block has a threaded hole. The arrangement direction of the threaded hole is perpendicular to the sliding direction of the baffle. The clamping member is threadedly connected to the threaded hole. The baffle slides within the through groove so that the stop block contacts the side wall of the construction opening, and the abutment is threaded into the threaded hole and abuts against the baffle to limit the displacement of the baffle.

2. The reusable construction opening protection device according to claim 1, characterized in that: The clamping element is a wing bolt.

3. The reusable construction opening protection device according to claim 1, characterized in that: The number of clamping components is two, and they are respectively located on both sides of the through groove.

4. A reusable construction opening protection device according to claim 3, characterized in that: The two clamping blocks and the two clamping members are respectively disposed on both sides of the through groove.

5. A reusable construction opening protection device according to claim 1, characterized in that: The protective mesh cover is made of welded steel bars.

6. A reusable construction opening protection device according to claim 1, characterized in that: The protective mesh cover consists of four triangular sidewalls and a rectangular bottom wall.

7. A reusable construction opening protection device according to claim 1, characterized in that: The protective netting includes a top frame and a bottom frame; the area of ​​the bottom frame is smaller than that of the top frame; the top frame is located above the bottom frame; the top frame and the bottom frame are connected by four inclined columns; the tops of the four inclined columns are connected together.

8. A reusable construction opening protection device according to claim 6, characterized in that: Each of the triangular sidewalls is provided with multiple reinforcing ribs; the multiple reinforcing ribs are connected to the protective mesh cover.

9. A reusable construction opening protection device according to claim 1, characterized in that: The protective netting is equipped with hanging rings.

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