A liftable opening protection platform

By designing a liftable opening protection platform, the safety hazards of traditional platforms being unable to adapt to non-standard floors were solved, achieving adaptive protection for changes in opening size and shape, and improving construction safety and progress.

CN224281913UActive Publication Date: 2026-05-26CHINA CONSTR SECOND ENG BUREAU LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR SECOND ENG BUREAU LTD
Filing Date
2025-06-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional ventilation shaft opening protection platforms cannot effectively protect non-standard floors, posing safety hazards. Furthermore, they cannot adapt to changes in the size or shape of the opening, affecting construction progress.

Method used

A liftable opening protection platform was designed. By splicing a first frame and a second frame, combined with an adjustable connecting layer, telescopic legs and support components, it can adapt to different opening sizes and shapes. The platform and the opening wall are filled with rolled material to enhance safety.

Benefits of technology

It achieves safety protection in non-standard layers, adapts to changes in openings, reduces debris falling, and improves construction progress and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a liftable opening protection platform, specifically relating to the field of building construction technology. It includes a first frame and a second frame joined together, with several connecting layers between them. The first frame extends at least two horizontally at the same horizontal height from each connecting layer, and the second frame extends at least two horizontally at the same horizontal height from each connecting layer. Each insert is inserted into a collinear hollow square tube, and the through holes between the hollow square tube and the insert are compatible. Several top plates are installed on the top connecting layer, and several baffles extend vertically upwards from each top plate. Support components that abut against the opening wall extend from both sides of each baffle. A flexible roll material surrounds the edge of the top platform formed by the top plates, with the inner edge of the roll material fixedly connected to the top platform. This application uses support components to flexibly reinforce the protection platform, ensuring it does not shift during use and is safe and reliable.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a liftable opening protection platform. Background Technology

[0002] Traditional ventilation shaft opening protection platforms are ineffective on non-standard floors due to variations in floor height. When the non-standard floor height decreases, the platform conflicts with the formwork system; when the non-standard floor height is too high, the height difference between the platform and the structural surface poses a safety hazard, easily leading to a fall. Traditional protection platforms lack fixing measures, making them prone to displacement during construction or formwork work, requiring repeated checks and repositioning, thus affecting construction progress. Non-standard floors often have changes in opening size or shape, widening the gap between the platform and the opening, or even making the platform unusable due to smaller openings. This liftable protection platform can be customized to meet specific requirements, expanding its applicability, enhancing opening protection, and ensuring construction progress. Furthermore, traditional non-liftable protection platforms leave gaps between the platform and the structure that are not covered, allowing debris to fall and creating safety hazards.

[0003] Therefore, a new type of liftable opening protection platform is needed. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses a liftable opening protection platform.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A liftable opening protection platform includes a first frame and a second frame joined together. Several connecting layers are provided between the first and second frames. The first frame extends at least two horizontally at the same horizontal height from each connecting layer, and the second frame extends at least two horizontally at the same horizontal height from each connecting layer. Each connecting layer has a hollow square tube inserted into a collinear hollow square tube. Both the hollow square tube and the connecting tube have a row of through holes, which are compatible. A fixing bolt and nut, penetrating both the hollow square tube and the connecting tube, are installed at the connection point. Several top plates are installed on the top connecting layer. Several baffles extend vertically upward from each top plate. Support components that abut against the opening wall extend from both sides of each baffle. A flexible roll material surrounds the edge of the top platform formed by the several top plates. The inner edge of the roll material is fixedly connected to the top platform, and the outer edge of the roll material slopes upward and rests against the opening wall.

[0007] As a preferred embodiment of the present invention, each of the supporting components includes: a support seat abutting against the baffle, a support rod fixedly connected to the support seat, a telescopic rod slidably inserted into the support rod, an abutment joint abutting against the hole wall installed at the end of the telescopic rod, and a locking bolt abutting against the telescopic rod threadedly connected to the support rod.

[0008] As a preferred technical solution of this utility model, the contact portion between the abutment and the tunnel wall is adapted to the shape of the tunnel wall, and the insertion point of the abutment and the telescopic rod is provided with a mounting bolt and nut that pass through both.

[0009] As a preferred embodiment of this utility model, the top platform is provided with several lifting lugs along its edge.

[0010] As a preferred embodiment of this utility model, each vertical rod of the first frame and the second frame is equipped with a telescopic leg at its bottom.

[0011] As a preferred embodiment of this utility model, the top plate has several bolts running through its edge, and the bolts are threadedly connected to the hollow square tube or the insertion tube.

[0012] As a preferred technical solution of this utility model, the top plate is fixedly connected to the hollow square tube and the insertion tube by a snap fastener.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This application is equipped with a first frame and a second frame with adjustable spacing. The top platform of the first frame and the second frame is equipped with an adjustable number of top plates, as well as telescopic legs at the bottom of the first frame and the second frame, which can be adapted to openings of different sizes, thus improving the versatility of the protective platform.

[0015] 2. This application is equipped with a detachable support component to flexibly reinforce the protective platform. The protective platform does not shift during use and is safe and reliable. At the same time, the support component of this application is equipped with a replaceable abutment joint, which is suitable for abutting against the wall of different shapes.

[0016] Third, the top platform of this application is surrounded by a tough roll of material, with the outer edge of the roll sloping upwards and draped over the hole wall to fill the gap between the top platform and the hole wall, reducing the fall of debris from a height and improving construction safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model without the support components and the roll material;

[0019] Figure 3 This is a schematic diagram of the structure of the support component in an embodiment of the present utility model.

[0020] List of identifiers in attached diagrams:

[0021] 1. First frame; 2. Second frame; 3. Hollow square tube; 4. Insert pipe; 5. Fixing bolts and nuts; 6. Top plate; 7. Baffle; 8. Lifting lugs;

[0022] 9. Support assembly; 901. Support base; 902. Support rod; 903. Telescopic rod; 904. Abutment joint; 905. Locking bolt; 906. Mounting bolt and nut;

[0023] 10. Roll material; 11. Telescopic legs. Detailed Implementation

[0024] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0025] Please see Figure 1-3 A liftable opening protection platform includes a first frame 1 and a second frame 2 joined together. Several connecting layers are provided between the first frame 1 and the second frame 2. The first frame 1 has at least two horizontally extending tubes 4 at the same horizontal height in each connecting layer, and the second frame 2 has at least two horizontally extending hollow square tubes 3 at the same horizontal height in each connecting layer. Each tube 4 is inserted into a collinear hollow square tube 3. Both the hollow square tube 3 and the tube 4 have a row of through holes, which are compatible. A fixing bolt and nut 5, penetrating both the hollow square tube 3 and the tube 4, is installed at the connection point. The distance between the first frame 1 and the second frame 2 can be adjusted by adjusting the insertion depth between the hollow square tube 3 and the tube 4 to accommodate openings of different widths. After adjusting the insertion depth between the hollow square tube 3 and the tube 4, the fixing bolt and nut 5 must be used to secure them through the through holes of the hollow square tube 3 and the tube 4.

[0026] A number of top plates 6 are installed on the topmost connecting layer. The size and dimensions of the top plates 6 are determined according to the distance between the first frame 1 and the second frame 2. Several baffles 7 extend vertically upward from the top plates 6, and support components 9 extend from both sides of each baffle 7 to abut against the cavity wall. A flexible roll 10 surrounds the edge of the top platform formed by the several top plates 6. The inner edge of the roll 10 is fixedly connected to the top platform, and the outer edge of the roll 10 slopes upward and rests on the cavity wall. A galvanized pad is pressed onto the edge of the roll 10, and self-tapping screws are screwed into the top plates 6, passing through both the roll 10 and the galvanized pad.

[0027] Each support assembly 9 includes: a support seat 901 that abuts against the baffle 7; a support rod 902 fixedly connected to the support seat 901; and a telescopic rod 903 slidably inserted into the support rod 902. An abutment 904 that abuts against the tunnel wall is installed at the end of the telescopic rod 903; and a locking bolt 905 that abuts against the telescopic rod 903 is threaded onto the support rod 902. The contact portion of the abutment 904 with the tunnel wall is adapted to the shape of the tunnel wall, and a mounting bolt and nut 906 that penetrates both the abutment 904 and the telescopic rod 903 is provided at the insertion point. The abutment 904 can be replaced according to the shape of the tunnel wall.

[0028] Several lifting lugs 8 are provided along the edge of the top platform. The lifting lugs 8 are used as suspension points for hoisting the entire protective platform.

[0029] Each vertical pole of the first frame 1 and the second frame 2 is equipped with a telescopic leg 11 at its bottom. The telescopic leg 11 is equipped with a hand crank to control its raising and lowering.

[0030] Example 1: Several bolts pass through the edge of the top plate 6, and the bolts are threadedly connected to the hollow square tube 3 or the insertion tube 4.

[0031] Example 2: The top plate 6 is fixedly connected to the hollow square tube 3 and the insertion tube 4 by a snap fastener.

[0032] Working principle:

[0033] When in use, the protective platform is hoisted into the hole to be constructed. Then, the distance between the first frame 1 and the second frame 2 is adjusted to adapt to the size of the hole. Then, the fixing bolts and nuts 5 are used to fix the platform through the hollow square tube 3 and the insertion tube 4 through the hole. Next, the top plate 6 is installed on the top connecting layer to form the top platform. The lifting and lowering of the telescopic legs 11 is adjusted to the appropriate height of the top platform. Then, a support component 9 is set on both sides of the baffle 7 to press against the hole wall to form a stable reinforcement. Finally, a tough roll 10 is wrapped around the edge of the top platform. The outer edge of the roll 10 is tilted upward and draped over the hole wall to fill the gap between the top platform and the hole wall and reduce the falling of debris from high places.

[0034] When the support assembly 9 is pressed against the tunnel wall, first select the matching abutment 904, then align the support seat 901 with the baffle 7, then extend the telescopic rod 903 so that the abutment 904 presses against the tunnel wall, and finally tighten the locking bolt 905 to fix the position of the telescopic rod 903, so that the entire support assembly 9 remains pressed against the tunnel wall.

[0035] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. A liftable opening protection platform, comprising a first frame (1) and a second frame (2) joined together, characterized in that, Several connecting layers are provided between the first frame (1) and the second frame (2). The first frame (1) extends at least two horizontally extending tubes (4) at the same horizontal height in each connecting layer. The second frame (2) extends at least two horizontally extending hollow square tubes (3) at the same horizontal height in each connecting layer. Each tube (4) is inserted into a collinear hollow square tube (3). Both the hollow square tube (3) and the tube (4) are provided with a row of through holes. The through holes between the hollow square tube (3) and the tube (4) are compatible. A fixing bolt and nut (5) that simultaneously penetrates the through holes of both is installed at the connection between the tube (4) and the insertion tube (4). Several top plates (6) are installed on the top connecting layer. Several baffles (7) extend vertically upward from the top plates (6). Support components (9) that abut against the hole wall extend from both sides of each baffle (7). A tough roll material (10) surrounds the edge of the top platform formed by several top plates (6). The inner edge of the roll material (10) is fixedly connected to the top platform, and the outer edge of the roll material (10) is tilted upward and rests on the hole wall.

2. The liftable opening protection platform according to claim 1, characterized in that, Each of the support components (9) includes: a support seat (901) abutting against the baffle (7), the support seat (901) being fixedly connected to a support rod (902), the support rod (902) being slidably inserted with a telescopic rod (903), the end of the telescopic rod (903) being fitted with an abutment (904) abutting against the hole wall, and the support rod (902) being threadedly connected with a locking bolt (905) abutting against the telescopic rod (903).

3. The liftable opening protection platform according to claim 2, characterized in that, The contact portion of the abutment (904) with the tunnel wall is adapted to the shape of the tunnel wall, and the insertion point of the abutment (904) and the telescopic rod (903) is provided with an installation bolt and nut (906) that passes through both of them.

4. The liftable opening protection platform according to claim 1, characterized in that, The top platform edge is provided with several lifting lugs (8).

5. The liftable opening protection platform according to claim 1, characterized in that, Each vertical pole of the first frame (1) and the second frame (2) is equipped with a telescopic leg (11) at its bottom.

6. The liftable opening protection platform according to claim 1, characterized in that, The top plate (6) has several bolts running through its edge, and the bolts are threadedly connected to the hollow square tube (3) or the insertion tube (4).

7. A liftable opening protection platform according to claim 1, characterized in that, The top plate (6) is fixedly connected to the hollow square tube (3) and the insertion tube (4) by a snap fastener.