Edge hole protection device

Abstract

The edge hole protection device comprises bases symmetrically arranged on the two sides of a hole, strip-shaped holes are formed in the bases, a plurality of fastening bolts are arranged in the strip-shaped holes in a sliding mode, the upper end faces of the bases are connected with movable clamping plates through the fastening bolts, and the inner side faces of the other ends of the movable clamping plates are tightly attached to the inner wall of the hole. A cover plate is arranged above the hole, the cover plate is located between the bases on the two sides, the cover plate is pressed on the end, close to the hole, of the movable clamping plate, a rotating clamping plate is arranged on the base and located above the movable clamping plate, one end of the rotating clamping plate is connected with the base through a fastening bolt, and the other end of the rotating clamping plate tightly presses the upper end face of the cover plate. The cover plate protection device has the advantages that the cover plate protection device is simple in structure, convenient and fast to operate, easy to mount and dismount and suitable for protection of edge holes of different sizes, the cover plate can be fixed only through the gravity of the cover plate and hooking of the edges of the holes through the sliding sleeves, and drilling for fixing of a concrete structure is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering safety, in particular to a protective device for an edge opening. Background Art

[0002] At the construction site, how to do a good job of protecting the edge openings has always been the focus of project safety management. Traditional edge opening protection mainly includes soft protection and hard protection. Soft protection is to set up a safety flat net, but the openings often lack tensioning and fixing points, and the damage and loss during the construction process are large, and they often cannot be reused well; hard protection is to form a mesh structure at the opening by reserving steel bars, and if necessary, lay a layer of templates, and then cut the steel bars during the later construction. For some small openings, the cover plate is directly fixed to the main structure using cement nails.

[0003] For traditional rigid protection, it is often necessary to set up separately for the specific size of each opening, which has poor versatility and is relatively cumbersome to construct. For example, the reserved steel bars at the opening are tied and embedded in the early stage and completely cut off in the later stage, which is time-consuming and laborious. In addition, since the reserved steel bars at the opening are exposed, it is easy to cause an uneven surface during concrete construction, and although the steel bars are cut off in the later stage, exposed steel bars still remain on the surface, affecting the appearance quality of the structure or posing quality risks in the later stage. In addition, since concrete has high strength, it is not only difficult to nail the cover plate directly to the opening by cement nails, but also destroys the main structure. Therefore, the present invention aims to invent a protective device that can be fixed through the opening and can be adapted to openings of different sizes by self-adjustment. Utility Model Content

[0004] In order to overcome the problem of traditional rigid protection of openings in the prior art, which requires individual setting for each opening with specific dimensions and is relatively cumbersome to construct, the embodiment of the utility model provides a protection device for edge openings. The technical solution is as follows:

[0005] A protective device for an edge hole, comprising a base symmetrically arranged on both sides of the hole, the base being provided with strip holes, a plurality of fastening bolts being slidably arranged in the strip holes, the upper end surface of the base being connected with a movable clamping plate through the fastening bolts, the inner side surface of the other end of the movable clamping plate being tightly against the inner wall of the hole; a cover plate being arranged above the hole, the cover plate being located between the bases on both sides, and the cover plate being pressed on one end of the movable clamping plate close to the hole, a rotating clamping plate being arranged on the base above the movable clamping plate, one end of the rotating clamping plate being connected to the base through the fastening bolts, and the other end of the rotating clamping plate being pressed tightly against the upper end surface of the cover plate.

[0006] Furthermore, one end of the movable card plate located in the hole is slidably connected with an "L"-shaped sliding sleeve, and the sliding sleeve is clamped with the movable card plate through a spring pin, and the lower end of the sliding sleeve can hook the edge of the hole.

[0007] Furthermore, the movable card plate is provided with saw teeth on one side surface located inside the hole, the sliding sleeve is provided with the spring pin on an outer side surface of the saw teeth, a clamping block is fixed on the inner end of the spring pin, and the clamping block can pass through a side wall of the sliding sleeve to engage with the saw teeth, and the position of the sliding sleeve on the movable card plate can be adjusted through the spring pin to adapt to different hole thicknesses.

[0008] Furthermore, an "I"-shaped groove is provided at the upper end of the fastening bolt to ensure that the bolt can be effectively fastened and to avoid the inconvenience of screwing the bolt head located inside the base.

[0009] Furthermore, the movable clamping plate is in a stepped shape so as to fit the base and the hole.

[0010] Furthermore, stoppers are symmetrically arranged on two inner side walls of the strip-shaped hole close to the upper end surface, and the stoppers are used to block the bolt heads in the strip-shaped hole.

[0011] Furthermore, the width of the cover plate is greater than the width of the hole.

[0012] The beneficial effects of the technical solution provided by the embodiment of the utility model are: the device has a simple structure, convenient operation, and is easy to install and disassemble. It is suitable for the protection of edge openings of different sizes, and only the cover plate's own weight and the edge of the opening hooked by the sliding sleeve can fix the cover plate, without drilling holes in the concrete structure for fixing;

[0013] The device can also adjust the position of the sliding sleeve on the movable clamping plate according to the depth of the hole through the clamping connection of the spring pin and the sawtooth, so as to adapt to holes of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings used in the embodiments. Obviously, the drawings listed below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 The overall structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of a state in which the cover of an embodiment of the utility model is closed;

[0017] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at center A;

[0018] Figure 4 The overall structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 5 It is an exploded schematic diagram of the movable clamping plate, the sliding sleeve and the spring pin in the embodiment of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the base in the embodiment of the utility model.

[0021] In the accompanying drawings, the components represented by each number are listed as follows: 1 base, 2 bar hole, 3 fastening bolt, 4 movable clamping plate, 5 cover plate, 6 sliding sleeve, 7 rotating clamping plate, 8 sawtooth, 9 clamping block, 10 groove, 11 hole, 12 spring pin, 13 stopper. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] See also Figures 1 to 6 The embodiment of the utility model provides a protective device for edge openings, including a base 1 symmetrically arranged on both sides of an opening 11, a strip hole 2 is arranged on the base 1, a plurality of fastening bolts 3 are slidably arranged in the strip hole 2, the upper end surface of the base 1 is connected with a movable card plate 4 through the fastening bolts 3, and the inner side surface of the other end of the movable card plate 4 is close to the inner wall of the opening 11; a cover plate 5 is arranged above the opening 11, the cover plate 5 is located between the bases 1 on both sides, and the cover plate 5 is pressed on one end of the movable card plate 4 close to the opening 11, and a rotating card plate 7 is arranged on the base 1 above the movable card plate 4, one end of the rotating card plate 7 is connected to the base 1 through the fastening bolts 3, and the other end of the rotating card plate 7 presses the upper end surface of the cover plate 5.

[0024] One end of the movable card plate 4 located in the hole 11 is slidably connected with an "L"-shaped sliding sleeve 6, and the sliding sleeve 6 is clamped with the movable card plate 4 through a spring pin 12, and the lower end of the sliding sleeve 6 can hook the edge of the hole 11; a sawtooth 8 is provided on a side surface of the movable card plate 4 located inside the hole 11, and a spring pin 12 is provided on an outer side surface of the sawtooth 8 of the sliding sleeve 6, a clamping block 9 is fixed to the inner end of the spring pin 12, and the clamping block 9 can pass through a side wall of the sliding sleeve 6 and engage with the sawtooth 8; the movable card plate 4 is stepped.

[0025] The upper end of the fastening bolt 3 is provided with an I-shaped groove 10; stoppers 13 are symmetrically arranged on the two inner side walls of the strip hole 2 close to the upper end surface; and the width of the cover plate 5 is greater than the width of the hole.

[0026] Instructions for use: When using this device, first install the moving card plate 4 and the rotating card plate 7 into the strip hole 2 on the base 1 through the fastening bolts 3, and the rotating card plate 7 is located above the moving card plate 4. Then, place the two bases 1 on both sides of the hole respectively, and then move the moving card plate 4 to a suitable position. Adjust the position of the sliding sleeve 6 on the moving card plate 4 through the spring pin 12 to adapt to holes of different thicknesses. Hook the bottom of the sliding sleeve 6 onto the edge of the hole, and then place the cover plate 5 above the hole 11 and press it on the moving card plate 4. Then, rotate one end of the rotating card plate 7 to the top of the cover plate 5, and then tighten it with the fastening bolts 3.

[0027] When disassembling the device, loosen the fastening bolts 3, rotate all the rotating clamps 7, remove the cover plate 5, loosen the sliding sleeve 6 hooked on the edge of the hole by operating the spring pin 12, and then remove the base 1 on both sides and the structure on the base 1.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective device for an edge opening, characterized in that: The invention comprises a base (1) symmetrically arranged on both sides of a hole (11), wherein the base (1) is provided with a strip hole (2), wherein a plurality of fastening bolts (3) are slidably arranged in the strip hole (2), wherein the upper end surface of the base (1) is connected to a movable card plate (4) via the fastening bolts (3), and the inner side surface of the other end of the movable card plate (4) is in close contact with the inner wall of the hole (11); a cover plate (5) is arranged above the hole (11), wherein the cover plate (5) is located between the bases (1) on both sides, and the cover plate (5) is pressed on one end of the movable card plate (4) close to the hole (11); and a rotating card plate (7) is arranged on the base (1) above the movable card plate (4), wherein one end of the rotating card plate (7) is connected to the base (1) via the fastening bolts (3), and the other end of the rotating card plate (7) is pressed against the upper end surface of the cover plate (5).

2. The edge hole protection device according to claim 1, characterized in that: One end of the movable card plate (4) located in the hole (11) is slidably connected to an "L"-shaped sliding sleeve (6); the sliding sleeve (6) is clamped to the movable card plate (4) via a spring pin (12); and the lower end of the sliding sleeve (6) can hook onto the edge of the hole (11).

3. The edge hole protection device according to claim 2, characterized in that: The movable clamping plate (4) is provided with saw teeth (8) on one side surface located inside the hole (11); the sliding sleeve (6) is provided with the spring pin (12) on an outer side surface of the saw teeth (8); a clamping block (9) is fixed to the inner end of the spring pin (12); and the clamping block (9) can pass through a side wall of the sliding sleeve (6) and engage with the saw teeth (8).

4. The edge hole protection device according to claim 3, characterized in that: The upper end of the fastening bolt (3) is provided with an I-shaped groove (10).

5. The edge hole protection device according to claim 4, characterized in that: The movable clamping plate (4) is in a stepped shape.

6. The edge hole protection device according to claim 5, characterized in that: Stoppers (13) are symmetrically arranged on the two inner side walls of the strip-shaped hole (2) close to the upper end surface.

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