Small-size hole shaping cover plate capable of being recycled and reused
By designing a reusable, small-sized prefabricated cover plate for openings, and employing a structure consisting of a floor slab, a fixed plate, a sliding groove, a telescopic rod, and a pin, the problems of easy displacement and inconvenient adjustment of the cover plate are solved, achieving flexible installation and improved durability, while reducing material waste and costs.
Patent Information
- Application Number
- CN202423051223.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing standardized cover plates for small openings are prone to displacement during use, the templates are easily damaged, and the width and height cannot be adjusted according to the thickness of the floor slab, resulting in limitations and insufficient economic efficiency.
A structure including a floor slab, a fixed plate, a sliding groove, a telescopic rod, a pin, and an openable cover plate is designed. The combination of the sliding groove and the telescopic rod enables flexible installation of the cover plate and adaptability to different openings and plate thicknesses. The pin is used for fixing, which enhances the flexibility and durability of the device.
It improves the ease of installation and durability of the cover plate, is suitable for different openings and plate thicknesses, reduces material waste, lowers costs, and expands the scope of application.
Smart Images

Figure CN223510648U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction equipment technology, and in particular to a small, reusable, standardized cover plate for openings. Background Technology
[0002] Pre-fabricated opening covers are commonly used on construction sites to ensure safety during construction. These covers are used to cover various pre-existing openings to prevent people or objects from accidentally falling into them, thereby reducing the risk of safety accidents.
[0003] A search revealed Chinese patent CN217106267U, which discloses a standardized horizontal protective cover for construction openings. The cover includes a horizontally arranged main back rib, with secondary back ribs vertically arranged on the main back rib. A frame is provided on the outer sides of the main and secondary back ribs, and support legs are provided on the four outer corners of the frame. A steel mesh is arranged between the frame and the main and secondary back ribs. This invention improves the safety, practicality, and aesthetics of edge protection for elevator shafts on construction work floors, while also increasing the turnover rate of the standardized operating platform, thus reducing costs.
[0004] Based on the above search results combined with existing technologies, the findings were as follows:
[0005] The aforementioned patent uses nails and templates to fix safety covers for small openings, which are prone to displacement during use, the templates are easily damaged, and the device cannot adjust its width and height according to the thickness of the floor slab, thus having certain limitations. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model proposes a small, reusable, prefabricated opening cover, which saves raw materials, improves the practicality of the device, and facilitates installation and operation.
[0007] The technical solution to achieve the purpose of this utility model is: a small, reusable, prefabricated cover plate for openings, comprising a pair of floor slabs, a fixing plate on the top of the pair of floor slabs, a sliding groove inside the fixing plate, a pin on the bottom of each pair of floor slabs, and a tongue and groove joint on one side of one of the floor slabs.
[0008] Preferably, a telescopic rod is slidably installed inside the groove, and the other end of the telescopic rod is inserted into the pin.
[0009] Preferably, a hinge is fixedly installed on one side of another floor slab, and an openable cover plate is fixedly installed on the other end of the hinge, the openable cover plate being adapted to the tongue and groove joint.
[0010] Compared with existing technologies, the significant advantages of this invention are:
[0011] Firstly, this utility model is easy to install, reduces the labor intensity of workers, is flexible in use, and is suitable for small openings of different sizes and plate thicknesses. The flexibility of the device is enhanced, and its application range is expanded.
[0012] Secondly, this utility model makes the cover plate less prone to damage, saves raw materials, and improves the economy and safety of the device.
[0013] This invention solves the problems of existing safety protection covers for small openings that are fixed with nails and templates, which are prone to displacement during use, easy damage to the templates, and the inability of the device to adjust the width and height according to the thickness of the floor slab. Attached Figure Description
[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0015] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;
[0016] Figure 2 This is a schematic diagram of the planar structure provided by this utility model;
[0017] Figure 3 This is a cross-sectional structural diagram provided by this utility model.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Floor slab; 2. Fixed plate; 3. Hinge; 4. Openable cover plate; 5. Telescopic rod; 6. Pin; 7. Tongue and groove; 8. Slide groove. Detailed Implementation
[0020] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0021] This utility model provides an improved, reusable, small-sized, standardized cover for openings. The technical solution of this utility model is as follows:
[0022] like Figures 1-3 As shown, a reusable small opening standard cover includes a pair of floor slabs 1. A fixing plate 2 is provided on the top of the pair of floor slabs 1. A sliding groove 8 is provided inside the fixing plate 2. A pin 6 is provided at the bottom of the pair of floor slabs 1. A tongue and groove 7 is provided on one side of one of the floor slabs 1. The sliding groove 8 facilitates the movement of the telescopic rod 5 in the later stage, adapts to the thickness of the floor slab 1, and improves the practicality of the device.
[0023] Furthermore, a telescopic rod 5 is slidably installed inside the slide groove 8, and the other end of the telescopic rod 5 is inserted into the pin 6, which improves the flexibility of the device and is fixed by being inserted into the pin 6.
[0024] Furthermore, a hinge 3 is fixedly installed on one side of another floor slab 1, and an openable cover plate 4 is fixedly installed on the other end of the hinge 3. The openable cover plate 4 is compatible with the tongue and groove joint 7 and is suitable for standardized and reusable safety protection cover plates of different plate thicknesses.
[0025] The specific working method is as follows: the cover plate is set as an openable cover plate 4, and a sliding groove 8 is set inside the fixed plate 2. The telescopic rod 5 can move inside the sliding groove 8, so it can be used for small openings of various sizes. The telescopic rod 5 can be used for openings of different plate thicknesses. During installation, the cover plate is opened, and then the bottom of the telescopic rod 5 is fixed with a pin 6.
[0026] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.
Claims
1. A reusable, compact, prefabricated cover for small openings, comprising a pair of floor slabs (1), characterized in that: A fixing plate (2) is provided on the top of a pair of floor slabs (1), and a sliding groove (8) is provided inside the fixing plate (2). A pin (6) is provided at the bottom of each pair of floor slabs (1), and a tongue and groove (7) is provided on one side of one of the floor slabs (1).
2. The reusable and compact prefabricated cover for small openings according to claim 1, characterized in that: A telescopic rod (5) is slidably installed inside the groove (8), and the other end of the telescopic rod (5) is inserted into the pin (6).
3. The reusable and compact prefabricated cover for small openings according to claim 1, characterized in that: A hinge (3) is fixedly installed on one side of another floor slab (1), and an openable cover plate (4) is fixedly installed on the other end of the hinge (3), which is adapted to the tongue and groove joint (7).
Citation Information
Patent Citations
Horizontal protective cover plate for shaped construction hole
CN217106267U