Horizontal hole protection device

Abstract

The utility model provides a horizontal hole protection device, belongs to the technical field of building construction, and effectively solves the problems that an existing horizontal hole protection cover plate is poor in stability and the like. According to the technical scheme, the device comprises a cover plate, the bottom of the cover plate is fixedly connected with a supporting frame, the supporting frame is fixedly connected with an adjusting frame, the adjusting frame is fixedly connected with an adjustable limiting clamping plate, and the covering area of the cover plate is larger than the area of a horizontal hole. The horizontal hole protection device has the beneficial effects that the horizontal hole protection device which is stable to place and can be suitable for holes with different sizes is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and more specifically to a horizontal hole protection device. Background Art

[0002] In construction, temporary horizontal openings such as floor openings and engineering pile openings often need to be protected by covers to prevent people and objects from falling from the openings and causing casualties or property losses. The short side length of such horizontal openings is usually in the range of 25mm to 1500mm. Most of them are rectangular or circular, and a few are regular polygons or irregular polygons. According to the Technical Specifications for Safety of Height Operations in Construction (JGJ 80-2016), the above-mentioned horizontal openings should be covered with covers with bearing capacity that meets the use requirements. The covers should be placed evenly around and should be prevented from shifting. There are currently three common ways to block the above-mentioned horizontal openings: 1. Cut the building wood formwork into a cover that is larger than the size of the opening and directly cover it on the horizontal opening, or fix the formwork to the floor structure with expansion bolts after covering; 2. Lay a number of square steel pipes, channel steels, etc. as supports in the horizontal opening, and then cover the building wood formwork on the supports; 3. Run the horizontal steel bars of the structural floor at the horizontal opening of the floor through, and then cover the building wood formwork on the opening. In actual construction and use, these sealing methods have the following shortcomings: 1. The first sealing method mentioned above, covering with wooden formwork is suitable for smaller horizontal openings. For slightly larger horizontal openings, directly using wooden formwork as cover plates cannot meet the bearing capacity requirements. The cover plates are fixed with expansion bolts, which damage the floor structure; 2. For the second sealing method mentioned above, square steel pipes, channel steels and other supports and wooden formworks are usually not fixed and are easy to shift; 3. For the third sealing method mentioned above, the horizontal steel bars of the structural floor that pass through the horizontal openings usually need to be cut off at a later stage, resulting in increased material and labor costs.

[0003] Therefore how to solve the above-mentioned technical problems just becomes the problem that the utility model faces. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide an adjustable assembled horizontal opening protection device structure, which can be easily installed and fixed to be suitable for horizontal openings of different sizes, and meet the requirements that the cover plate is not easy to move and the cover plate has the bearing capacity. At the same time, it can be simply assembled and used on site, which can realize the turnover use of the protective cover plate and the convenient replacement of the easily consumable surface layer of the protective cover plate, thereby reducing material and labor costs and achieving better safety protection effects.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows: the utility model provides a horizontal hole protection device, characterized in that it comprises a rectangular and horizontally arranged cover plate, the bottom of the cover plate is fixedly connected to a support frame, the support frame is fixedly connected to an adjustment frame, and the adjustment frame is fixedly connected to an adjustable limit clamping plate;

[0006] The covering area of ​​the cover plate is larger than the horizontal opening area.

[0007] The adjustment frame comprises a pair of first adjustment plates in a trapezoidal shape and vertically arranged parallel to each other, the center bisectors of the two first adjustment plates coincide with the center bisectors of the short sides of the horizontal opening, the top surfaces of the first adjustment plates are in contact with the bottom surface of the cover plate, and the edges of the bottom ends of the first adjustment plates coincide with the edges of the bottom sides of the cover plate;

[0008] A pair of parallel trapezoidal second adjustment plates are fixedly connected at the center of the two first adjustment plates, the second adjustment plates are broken section by section, the two second adjustment plates located at the center are fixedly connected to the outer wall of one side away from the two first adjustment plates, and the other broken parts of the second adjustment plates are fixedly connected to the support frame;

[0009] Both sides of the lower bottom edge of the second adjustment plate extend to the outside of both sides of the cover plate in the long side direction.

[0010] The support frame comprises a plurality of angle plates equidistantly arranged on both sides of the first adjustment plate, the top surfaces of the angle plates are arranged horizontally and coplanar with the top surface of the first adjustment plate, the vertical surfaces of the angle plates are parallel to the first adjustment plate, and the angle plates are evenly provided with a plurality of connection holes for connecting and cooperating with the cover plate;

[0011] The two ends of the angle plate are beveled and the bottom edge thereof extends to the outside of the cover plate;

[0012] The broken portion of the second adjustment plate away from the first adjustment plate is sequentially fixedly connected to the vertical surfaces of the angle plate;

[0013] A plurality of vertical plates parallel to the second adjustment plate are arranged at equal distances on both sides of the second adjustment plate. The vertical plates have the same shape and size as the second adjustment plate and are broken section by section. The broken parts of the vertical plates correspond to the broken parts of the second adjustment plate. The broken parts of the vertical plates are fixedly connected to the facades of the angle plates and the first adjustment plate in sequence.

[0014] The top surface of the vertical plate is in contact with the second adjustment plate, and the top surface of the second adjustment plate is in contact with the bottom of the top surface of the angle plate;

[0015] The angle plates located on both sides of the first adjusting plate are arranged opposite to each other.

[0016] First adjustment holes are symmetrically opened transversely on both sides of the central parts of the two first adjustment plates, and second adjustment holes are opened transversely on each broken section of the two second adjustment plates;

[0017] Two vertically downwardly arranged limit clamps are slidably fitted inside both sides of the two first adjustment plates and inside both sides of the two second adjustment plates, the bottom of the limit clamp is wedge-shaped, and limit holes are symmetrically provided on both sides of the top of the limit clamp, and first fixing bolts are passed through the limit holes and the first adjustment holes or the second adjustment holes, and the first fixing bolts are threadedly connected with first fixing nuts.

[0018] Rotatable pull rings are arranged near the four corners on the top of the cover plate, and second fixing bolts are passed between the two sides of the mounting portion on the lower side of the pull ring and the top surface of the angle plate, and the second fixing bolts are threadedly connected with second fixing nuts.

[0019] The height of the limit clamp extending to the inner side of the horizontal opening is not less than one third of the floor height.

[0020] The cover plate is made of wood, and the support frame, the adjustment frame and the limit clamping plate are all made of steel.

[0021] When the utility model is actually used: according to the current size of the horizontal opening, the position of the limit clamping plate is adjusted respectively, so that the limit clamping plate is clamped on the inner wall of the horizontal opening from four directions respectively, to ensure the overall stability of the device. When it is used in horizontal openings of different sizes, the position of the limit clamping plate can be quickly adjusted to suit.

[0022] The beneficial effects of the utility model are:

[0023] 1. The adjustable structure of the limit card plate enables the device to be adjusted according to the different sizes of the horizontal opening to achieve the purpose of limiting the displacement of the device, thereby increasing the scope of turnover and reducing material and labor costs. At the same time, the wedge-shaped limit card plate is clamped on the floor structure at the edge of the horizontal opening to limit the displacement, avoiding the damage to the floor structure caused by drilling holes in the floor using expansion bolts and the like in the prior art;

[0024] 2. The structure is simple and assembled, which can be used for covering and protecting longer horizontal openings. The removable cover plate and removable pull ring can be easily replaced after damage. The structural setting of the support frame and the adjustment frame ensures that the overall structure meets the bearing capacity requirements. At the same time, the overall steel structure can be treated with rust and corrosion prevention, which comprehensively improves the applicability, practicality and durability of the cover plate structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 2 It is a bottom view of the utility model;

[0027] Figure 3 It is a side view of the utility model;

[0028] Figure 4 This is a schematic diagram of the connection position structure of the support frame and the adjustment frame of the utility model;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the adjustment frame of the utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the limit card plate of the utility model;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the utility model in use state.

[0032] Wherein, the accompanying drawings are marked as follows:

[0033] 1. Cover plate; 2. Support frame; 201. Angle plate; 202. Connection hole; 203. Vertical plate; 3. Adjustment frame; 301. First adjustment plate; 302. Second adjustment plate; 303. First adjustment hole; 304. Second adjustment hole; 4. Limiting card plate; 401. Limiting hole; 402. First fixing bolt; 403. First fixing nut; 5. Horizontal opening; 6. Pull ring; 601. Second fixing bolt; 602. Second fixing nut; 7. Floor slab. DETAILED DESCRIPTION

[0034] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0035] See also Figures 1 to 7 As shown, the utility model is a horizontal hole protection device, comprising a rectangular and horizontally arranged cover plate 1, the bottom of the cover plate 1 is fixedly connected to a support frame 2, the support frame 2 is fixedly connected to an adjustment frame 3, the adjustment frame 3 is fixedly connected to an adjustable limit card plate 4, and the coverage area of ​​the cover plate 1 is larger than the area of ​​the horizontal hole 5. The cover plate 1 is made of wood, and the support frame 2, the adjustment frame 3 and the limit card plate 4 are all made of steel.

[0036] The adjustment frame 3 includes a pair of trapezoidal first adjustment plates 301 that are vertically arranged and parallel to each other. The center bisectors of the two first adjustment plates 301 coincide with the center bisectors of the short side directions of the horizontal opening 5. The top surfaces of the first adjustment plates 301 fit the bottom surfaces of the cover plate 1. The edges of the upper bottom ends of the first adjustment plates 301 coincide with the edges of the two sides of the bottom of the cover plate 1. A pair of parallel trapezoidal second adjustment plates 302 are fixedly connected to the center parts of the two first adjustment plates 301. The second adjustment plates 302 are broken section by section. The two sections of the second adjustment plates 302 located in the center are fixedly connected to the outer wall on one side away from the two first adjustment plates 301. The other broken parts of the second adjustment plates 302 are fixedly connected to the support frame 2. The two sides of the lower bottom edge of the second adjustment plates 302 extend to the outside of the two sides of the long side direction of the cover plate 1.

[0037] The support frame 2 includes a plurality of angle plates 201 equidistantly arranged on both sides of the first adjustment plate 301, the top surfaces of the angle plates 201 are horizontally arranged and coplanar with the top surfaces of the first adjustment plate 301, the vertical surfaces of the angle plates 201 are parallel to the first adjustment plate 301, and a plurality of connection holes 202 connected to and matched with the cover plate 1 are evenly opened on the angle plates 201, the two ends of the angle plates 201 are beveled and their bottom edges extend to the outside of the cover plate 1, the broken parts of the second adjustment plate 302 away from the first adjustment plate 301 are sequentially fixedly connected to the vertical surfaces of the angle plates 201, and the second adjustment A number of vertical plates 203 parallel to each other are arranged equidistantly on both sides of the plate 302. The vertical plates 203 have the same shape and size as the second adjustment plate 302 and are broken section by section. The broken portion of the vertical plate 203 corresponds to the broken portion of the second adjustment plate 302. The broken portions of the vertical plates 203 are fixedly connected to the vertical surfaces of the angle plates 201 and the first adjustment plate 301 in sequence. The top surface of the vertical plate 203 fits with the second adjustment plate 302 and the top surface of the second adjustment plate 302 fits with the bottom of the top surface of the angle plate 201. The angle plates 201 located on both sides of the first adjustment plate 301 are arranged opposite to each other. The first adjustment holes 303 are symmetrically opened horizontally on both sides of the center of the two first adjustment plates 301, and the second adjustment holes 304 are opened horizontally on each fracture node of the two second adjustment plates 302. Two vertically downwardly arranged limiting clamps 4 are slidably matched in both sides of the two first adjustment plates 301 and the two second adjustment plates 302. The bottom of the limiting clamp 4 is wedge-shaped, and the limiting holes 401 are symmetrically opened on both sides of the top of the limiting clamp 4. The first fixing bolts 402 are penetrated between the limiting holes 401 and the first adjustment holes 303 or the second adjustment holes 304, and the first fixing bolts 402 are threadedly connected with the first fixing nuts 403. The height of the limiting clamp 4 extending to the inner side of the horizontal opening 5 is not less than one-third of the floor height.

[0038] Rotatable pull rings 6 are provided at the top of the cover plate 1 near the four corners, and second fixing bolts 601 are inserted between the two sides of the lower mounting portion of the pull ring 6 and the top surface of the corner plate 201. The second fixing bolts 601 are threadedly connected with second fixing nuts 602.

[0039] In actual use: according to the current size of the horizontal opening 5, the position of the limit card plate 4 is adjusted respectively, so that the limit card plate 4 is clamped on the inner wall of the horizontal opening 5 from four directions respectively to ensure the overall stability of the device. When used in horizontal openings 5 ​​of different sizes, the position of the limit card plate 4 can be quickly adjusted to suit.

[0040] The above description is only a preferred embodiment of the present invention and is 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 horizontal hole protection device, characterized in that: It comprises a rectangular and horizontally arranged cover plate (1), the bottom of the cover plate (1) is fixedly connected to a support frame (2), the support frame (2) is fixedly connected to an adjustment frame (3), and the adjustment frame (3) is fixedly connected to an adjustable limit clamping plate (4); The covering area of ​​the cover plate (1) is larger than the area of ​​the horizontal opening (5).

2. The horizontal opening protection device according to claim 1, characterized in that: The adjustment frame (3) comprises a pair of first adjustment plates (301) in a trapezoidal shape and arranged vertically and parallel to each other, the center bisectors of the two first adjustment plates (301) coincide with the center bisectors of the short side direction of the horizontal opening (5), the top surfaces of the first adjustment plates (301) are in contact with the bottom surface of the cover plate (1), and the edges at both ends of the upper bottom of the first adjustment plates (301) coincide with the edges at both sides of the bottom of the cover plate (1); A pair of mutually parallel trapezoidal second adjustment plates (302) are fixedly connected at the center of the two first adjustment plates (301); the second adjustment plates (302) are broken section by section; the two sections of the second adjustment plates (302) located at the center are fixedly connected to the outer wall of one side away from the two first adjustment plates (301); the other broken parts of the second adjustment plates (302) are fixedly connected to the support frame (2); Both sides of the lower bottom edge of the second adjustment plate (302) extend to the outside of both sides of the long side direction of the cover plate (1).

3. The horizontal opening protection device according to claim 2 is characterized in that: The support frame (2) comprises a plurality of angle plates (201) equidistantly arranged on both sides of the first adjustment plate (301); the top surfaces of the angle plates (201) are arranged horizontally and are coplanar with the top surface of the first adjustment plate (301); the vertical surfaces of the angle plates (201) are parallel to the first adjustment plate (301); and the angle plates (201) are evenly provided with a plurality of connection holes (202) for connecting and cooperating with the cover plate (1); The two ends of the angle plate (201) are beveled, and the bottom edge thereof extends to the outside of the cover plate (1); The broken portion of the second adjustment plate (302) away from the first adjustment plate (301) is sequentially fixedly connected to the vertical surfaces of the angle plate (201); A plurality of vertical plates (203) are arranged at equal distances on both sides of the second adjustment plate (302) and are parallel to the vertical plates (203). The vertical plates (203) and the second adjustment plate (302) have the same shape and size and are broken section by section. The broken portion of the vertical plate (203) corresponds to the broken portion of the second adjustment plate (302). The broken portion of the vertical plate (203) is fixedly connected to the vertical surface of the angle plate (201) and the first adjustment plate (301) in sequence. The top surface of the vertical plate (203) is in contact with the second adjustment plate (302), and the top surface of the second adjustment plate (302) is in contact with the bottom of the top surface of the angle plate (201); The angle plates (201) located on both sides of the first adjustment plate (301) are arranged opposite to each other.

4. The horizontal opening protection device according to claim 3 is characterized in that: First adjustment holes (303) are symmetrically opened transversely on both sides of the central part of the two first adjustment plates (301), and second adjustment holes (304) are opened transversely on each broken section of the two second adjustment plates (302); Two limit clamps (4) vertically arranged downward are slidably fitted inside both sides of the two first adjustment plates (301) and inside both sides of the two second adjustment plates (302), the bottom of the limit clamp (4) is wedge-shaped, and limit holes (401) are symmetrically provided on both sides of the top of the limit clamp (4), and a first fixing bolt (402) is inserted between the limit hole (401) and the first adjustment hole (303) or the second adjustment hole (304), and the first fixing bolt (402) is threadedly connected with a first fixing nut (403).

5. The horizontal opening protection device according to claim 4, characterized in that: A rotatable pull ring (6) is provided at the top of the cover plate (1) near the four corners, and a second fixing bolt (601) is inserted between the two sides of the lower mounting portion of the pull ring (6) and the top surface of the corner plate (201), and the second fixing bolt (601) is threadedly connected with a second fixing nut (602).

6. The horizontal opening protection device according to claim 4, characterized in that: The height of the limit clamping plate (4) extending to the inner side of the horizontal opening (5) is not less than one third of the height of the floor slab (7).

7. The horizontal opening protection device according to claim 1, characterized in that: The cover plate (1) is made of wood, and the support frame (2), the adjustment frame (3) and the limit clamping plate (4) are all made of steel.

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