Splicing telescopic reserved hole plugging safety device
By designing a modular telescopic pre-reserved opening sealing device, which utilizes a combination structure of guide rails, steel plates, and connecting rods, the problems of easy damage and difficulty in fixing traditional sealing methods are solved, thereby improving safety and stability and enabling flexible sealing of openings of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional methods of sealing reserved openings are easily damaged, difficult to fix, have poor protective effects, and are not safe enough to meet the safety requirements of building construction.
The device employs a modular telescopic pre-reserved opening sealing safety device, which includes guide rails, steel plates, and connecting rods. The adjustable sealing structure is achieved through threaded connections and limit pins to adapt to different opening sizes, and is secured using hinges and nuts.
It improves the safety and stability of sealing, has good adaptability, is easy to install and fix, is not easily damaged, is suitable for various opening sizes, and has higher reuse value.
Smart Images

Figure CN224078729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and more specifically, to a connectable telescopic pre-reserved opening sealing safety device. Background Technology
[0002] During construction, pre-existing openings are common safety hazards. To ensure the safety of construction workers and prevent objects from falling from heights, effective sealing and safety protection measures must be implemented. Traditional sealing methods often use materials such as wooden boards and steel plates for temporary covering. While these methods temporarily seal the openings to some extent, they suffer from problems such as easy damage, difficulty in securing them, poor protective effect, insufficient safety, and the ability to be moved at will. Therefore, developing safer, more reliable, and more efficient safety devices for sealing pre-existing openings has become an important issue in the construction industry. Utility Model Content
[0003] In view of the problems existing in the prior art, the purpose of this utility model is to provide a splicable telescopic reserved opening sealing safety device, which improves the sealing effect of reserved openings and ensures higher safety and stability.
[0004] The present invention adopts the following technical solution:
[0005] A modular telescopic safety device for sealing pre-reserved openings includes a guide rail, a steel plate, and a connecting rod. The two ends of the steel plate are mounted on the guide rail, and the top of the connecting rod passes through both sides of the steel plate. The upper end of the connecting rod is provided with an external thread, and a nut and a bolt are installed on the top of the connecting rod. The nut is located at the upper end of the steel plate, and the bolt is located at the lower end of the steel plate. The connecting rod has a telescopic structure, and a hinge is installed at the bottom of the connecting rod.
[0006] Furthermore, the connecting rod includes at least connecting rod one and connecting rod two, both of which are provided with vertically distributed limiting holes, and limiting pins are installed at the limiting holes.
[0007] Furthermore, the diameter of connecting rod one is larger than the diameter of connecting rod two, connecting rod one is located above connecting rod two, and a hinge is installed at the bottom of connecting rod two.
[0008] Furthermore, it also includes a third link, the lower end of which is connected to the upper end of the first link. The diameter of the third link is larger than that of the first link. The third link and the first link are connected by a limiting pin. The top of the third link is provided with an external thread, and the nut and bolt are both threaded onto the third link.
[0009] Furthermore, there are multiple guide rails, with two adjacent guide rails connected front and back. One end of the guide rail is equipped with a plug, and the other end of the guide rail is equipped with a socket corresponding to the plug.
[0010] Furthermore, the guide rail is made of plastic.
[0011] Furthermore, a slot is provided on one side of the guide rail, and one end of the steel plate is inserted into the slot.
[0012] Beneficial effects
[0013] This invention connects the connecting rod to the steel plate, opens the hinge, and rotates one side of the hinge inward. Based on the height of the opening, the length of the connecting rod is adjusted to a suitable position using a limiting pin. After installation, the connecting rod and hinge are rotated by turning the nut, adjusting one side of the hinge to face outward. Finally, the entire device is fixed along the edge of the opening. This invention is safer and more reliable than templates and other materials, has better adaptability, is convenient to use, flexible in installation, is not easily damaged, easy to fix, and can be reused. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of an embodiment of the present utility model;
[0015] Figure 2 This is a partial schematic diagram of an embodiment of the present invention;
[0016] Figure 3 This is a schematic diagram of a guide rail according to an embodiment of the present invention. Detailed Implementation
[0017] 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.
[0018] As shown in the figure, this utility model discloses a connectable telescopic safety device for sealing pre-reserved openings, including a guide rail 1, a steel plate 2, and a connecting rod 3. Both ends of the steel plate 2 are mounted on the guide rail 1. The top of the connecting rod 3 passes through both sides of the steel plate 2. The upper end of the connecting rod 3 has external threads, and a nut 4 and a nut 5 are installed on the top of the connecting rod 3. The nut 4 is located at the upper end of the steel plate 2, and the nut 5 is located at the lower end of the steel plate 2. The connecting rod 3 has a telescopic structure, and a hinge 6 is installed at the bottom of the connecting rod 3. Drilling is required for the portion of the steel plate 2 through which the connecting rod 3 passes, which will not be described in detail here. This utility model rotates the nut 4, causing the connected connecting rod 3 to rotate synchronously. The hinge 6 at the lower end of the connecting rod 3 also rotates synchronously, and then the hinge 6 is fixed to the lower floor slab. The upper steel plate 2 is used to seal the opening.
[0019] This invention is reusable, and the hinge 6 is convenient for fixing and prevents loss.
[0020] Two operating plates can be welded to both sides of nut 4 to facilitate rotating nut 4.
[0021] In one embodiment of this utility model, the connecting rod 3 includes at least a first connecting rod 32 and a second connecting rod 33. Both the first connecting rod 32 and the second connecting rod 33 are provided with vertically distributed limiting holes, and limiting pins 7 are installed at the limiting holes. After the connecting rods 32 and 33 are connected in the correct position, they are fixed by using the limiting pins 7.
[0022] In one embodiment of this utility model, the diameter of connecting rod 32 is larger than the diameter of connecting rod 33, connecting rod 32 is located above connecting rod 33, and hinge 6 is installed at the bottom of connecting rod 33.
[0023] In one embodiment of this utility model, a third connecting rod 31 is further included. The lower end of the third connecting rod 31 is connected to the upper end of the first connecting rod 32. The diameter of the third connecting rod 31 is larger than the diameter of the first connecting rod 32. The third connecting rod 32 and the first connecting rod 33 are connected by a limiting pin 7. The top of the third connecting rod 31 is provided with an external thread. Both the nut 5 and the bolt 4 are threaded onto the third connecting rod 31. The function of the nut 5 is to lock the third connecting rod 31 and the steel plate 2.
[0024] In one embodiment of this utility model, multiple guide rails 1 are provided, with two adjacent guide rails 1 connected front and rear. One end of each guide rail 1 is provided with a plug 101, and the other end of each guide rail 1 is provided with a socket 102 corresponding to the plug. The design of the guide rails 1 can be used according to the size of the opening, and this utility model can be applied to sealing openings of various sizes.
[0025] In one embodiment of this utility model, the guide rail 1 is made of plastic.
[0026] In one embodiment of this utility model, a slot 103 is provided on one side of the guide rail 1, and one end of the steel plate 2 is inserted into the slot 103. The slot 103 is used to install the steel plate 2.
[0027] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A splicable, telescoping, pre-holed closure safety device, characterized by: The utility model relates to a steel plate lifting device, including guide rail, steel plate and connecting rod, both ends of steel plate are installed on guide rail, the top of connecting rod passes through both sides of steel plate, the upper end of connecting rod is equipped with external thread, the top of connecting rod is equipped with nut and cap, cap is located the upper end of steel plate, nut is located the lower end of steel plate, connecting rod is telescopic structure, the bottom of connecting rod is equipped with hinge.
2. A telescopic pre-formed hole closure safety device according to claim 1, wherein: Connecting rod at least includes connecting rod one and connecting rod two, and connecting rod one and connecting rod two are equipped with vertical distribution's limit hole, and limit bolt is installed at limit hole.
3. A spliced, telescoping pre-hole closure safety device according to claim 2, wherein: The diameter of connecting rod one is greater than the diameter of connecting rod two, and connecting rod one is located above connecting rod two, and the bottom of connecting rod two is equipped with hinge.
4. A spliced, telescoping pre-hole closure safety device according to claim 3, wherein: Also including connecting rod three, the lower end of connecting rod three is connected with the upper end of connecting rod one, the diameter of connecting rod three is greater than the diameter of connecting rod one, connecting rod three is connected with connecting rod one through limit bolt, the top of connecting rod three is equipped with external thread, and nut and cap are all screwed on connecting rod three.
5. A telescopic pre-formed hole closure safety device according to claim 1, wherein: The utility model relates to a steel plate lifting device, including guide rail, steel plate and connecting rod, both ends of steel plate are installed on guide rail, the top of connecting rod passes through both sides of steel plate, the upper end of connecting rod is equipped with external thread, the top of connecting rod is equipped with nut and cap, cap is located the upper end of steel plate, nut is located the lower end of steel plate, connecting rod is telescopic structure, the bottom of connecting rod is equipped with hinge.
6. A spliced, telescoping pre-hole closure safety device according to claim 5, wherein: The material of guide rail is plastic.
7. A telescopic pre-formed hole closure safety device according to claim 1, wherein: One side of guide rail is equipped with clamping slot, and one end of steel plate is inserted at clamping slot.