Adjustable reserved hole anti-falling device and construction method thereof

Abstract

The invention discloses an adjustable reserved hole anti-falling device and a construction method thereof.The adjustable reserved hole anti-falling device comprises a middle cover plate, four lower sliding grooves are formed in the bottom of the middle cover plate, and the four lower sliding grooves are formed in the circumferential direction of the plane center of the middle cover plate at intervals; the four expansion plates are arranged below the middle cover plate in the circumferential direction of the middle cover plate, upper sliding grooves are formed in the tops of the expansion plates, and the positions of the upper sliding grooves of the four expansion plates correspond to the positions of the four lower sliding grooves in a one-to-one mode; the upper portion of the connecting block is arranged in the lower sliding groove in a sliding mode, the lower portion of the connecting block is arranged in the upper sliding groove in a sliding mode, and a locking piece used for locking the middle cover plate and the expansion plate is installed on the connecting block; and the protective nets are connected between every two adjacent expansion plates. The problem that an existing hole protection measure is insufficient in protection capacity is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an adjustable reserved hole anti-falling device and a construction method thereof. Background Art

[0002] During the construction process, various openings of different sizes are often created, which are prone to falling from heights or objects falling and injuring people. Among the measures for opening protection, common safety protection measures are to install protective nets or use wooden covers. In actual application, they are not only easily damaged, but also have insufficient protection capabilities, and cannot effectively reduce the occurrence of construction accidents caused by openings. Summary of the invention

[0003] In order to overcome the defects of the prior art, an adjustable reserved hole opening anti-falling device and a construction method thereof are now provided to solve the problem of insufficient protection capability of the existing hole opening protection measures.

[0004] In order to achieve the above-mentioned purpose, an adjustable reserved hole anti-falling device is provided, comprising:

[0005] A middle cover plate, wherein four sliding grooves are formed at the bottom of the middle cover plate, and the four sliding grooves are arranged at intervals along the circumferential direction of the plane center of the middle cover plate;

[0006] Four expansion plates, the four expansion plates are arranged below the middle cover plate along the circumferential direction of the middle cover plate, an upper slide groove is formed on the top of the expansion plate, and the upper slide grooves of the four expansion plates correspond to the positions of the four lower slide grooves one by one;

[0007] A connecting block, the upper portion of which is slidably disposed in the lower sliding groove, the lower portion of which is slidably disposed in the upper sliding groove, and a locking member for locking the middle cover plate and the expansion plate is installed on the connecting block;

[0008] A protection net is connected between two adjacent expansion boards.

[0009] Furthermore, the middle cover plate and the extension plate are rectangular.

[0010] Furthermore, the lower sliding groove is arranged along the length direction of the diagonal line of the middle cover plate.

[0011] Furthermore, the upper slide groove is arranged along the length direction of the diagonal line of the middle cover plate.

[0012] Furthermore, the connecting block is provided with a first locking hole, the middle cover plate is provided with a plurality of second locking holes, the second locking holes are connected to the lower sliding groove, the expansion plate is provided with a plurality of third locking holes, the third locking holes are connected to the upper sliding groove, the locking piece is detachably inserted into the first locking hole, one end of the locking piece is detachably inserted into a second locking hole, and the other end of the locking piece is detachably inserted into a third locking hole.

[0013] Furthermore, the expansion plate is provided with a plurality of weight-reducing holes.

[0014] Furthermore, a limiting member is detachably inserted into a weight-reducing hole, and an end of the limiting member extends to a side of the expansion plate away from the middle cover plate and abuts against an inner wall of the reserved hole.

[0015] The present invention provides a construction method of an adjustable reserved hole anti-falling device, comprising the following steps:

[0016] Based on the size of the reserved hole, the four extension plates are slid in a direction away from the center of the plane of the middle cover plate, so that the outer contour of the adjustable reserved hole anti-falling device is larger than the size of the reserved hole;

[0017] A locking piece is installed on the connecting block to lock the middle cover plate and the expansion plate;

[0018] The adjustable reserved hole anti-falling device is installed on the reserved hole to cover the reserved hole.

[0019] Furthermore, after the adjustable reserved hole anti-falling device is installed in the reserved hole, a limiting piece is detachably inserted into a weight-reducing hole of four expansion plates, so that the end of the limiting piece extends to the side of the expansion plate away from the middle cover plate and abuts against the inner wall of the reserved hole.

[0020] The beneficial effect of the present invention lies in that the adjustable reserved hole anti-falling device of the present invention is formed by sliding and unfolding four expansion plates on the middle cover plate to form an adjustable reserved hole anti-falling device with adjustable size, so as to provide a safe and reliable hole protection function, effectively reduce the occurrence of high-altitude falling accidents and object striking accidents caused by the lack of reliable protection of the hole during the construction process, and can be suitable for various reserved holes of different sizes and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 It is a schematic structural diagram of an adjustable reserved hole anti-falling device according to an embodiment of the present invention.

[0023] Figure 2 Schematic diagram of the unfolded state of the adjustable reserved hole anti-falling device according to an embodiment of the present invention.

[0024] Figure 3 A perspective view of an adjustable reserved hole anti-falling device according to an embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the usage status of the adjustable reserved hole anti-falling device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Reference Figures 1 to 4 As shown, the present invention provides an adjustable reserved hole anti-falling device, including: a middle cover plate 1, an expansion plate 2, a connecting block and a protective net (not shown in the view).

[0029] The middle cover plate 1 is rectangular in shape. Four sliding grooves are formed at the bottom of the middle cover plate 1. The four sliding grooves are arranged at intervals along the circumferential direction of the plane center of the middle cover plate 1.

[0030] In this embodiment, the lower sliding groove is arranged along the length direction of the diagonal line of the middle cover plate 1 .

[0031] There are four expansion boards 2. The expansion boards 2 are rectangular.

[0032] Four expansion plates are arranged below the middle cover plate 1 along the circumferential direction of the middle cover plate 1. An upper slide groove 20 is formed on the top of the expansion plate 2. The positions of the upper slide grooves 20 of the four expansion plates correspond to the positions of the four lower slide grooves.

[0033] As a preferred embodiment, the upper slide groove 20 is arranged along the length direction of the diagonal line of the middle cover plate 1. In this embodiment, the diagonal line of the middle cover plate and the diagonal lines of the two extension plates on the diagonal line of the middle cover plate are arranged to overlap.

[0034] The upper part of the connecting block is slidably arranged in the lower sliding groove. The lower part of the connecting block is slidably arranged in the upper sliding groove 20. A locking member 31 is installed on the connecting block.

[0035] As a preferred embodiment, anti-slip flanges are formed on opposite sides of the notches of the upper slide groove and the lower slide groove. The connecting rod is dumbbell-shaped.

[0036] The locking member 31 is used to lock the middle cover plate 1 and the expansion plate 2 .

[0037] As a preferred embodiment, the connecting block is provided with a first locking hole. The middle cover plate 1 is provided with a plurality of second locking holes. The second locking holes are connected to the lower slide groove. The expansion plate 2 is provided with a plurality of third locking holes. The third locking hole is connected to the upper slide groove 20. The locking member 31 is detachably inserted into the first locking hole. One end of the locking member 31 is detachably inserted into a second locking hole. The other end of the locking member 31 is detachably inserted into a third locking hole.

[0038] As a preferred embodiment, the expansion board 2 is provided with a plurality of weight-reducing holes 200. The weight of the expansion board is reduced by providing a plurality of weight-reducing holes.

[0039] In this embodiment, a weight reduction hole 200 is detachably provided with a stopper 5. Figure 4 As shown, the end of the limiting member extends to the side of the expansion plate 2 away from the middle cover plate 1. The end of the limiting member abuts against the inner wall of the reserved hole 40.

[0040] A protective net is connected between two adjacent expansion boards 2. After the four expansion boards are unfolded, the gap between the two adjacent expansion boards is shielded by the protective net.

[0041] The present invention provides a construction method of an adjustable reserved hole anti-falling device, comprising the following steps:

[0042] S1. Based on the size of the reserved hole 40 , slide the four expansion plates 2 in a direction away from the plane center of the middle cover plate 1 , so that the outer contour size of the adjustable reserved hole 40 anti-falling device is larger than the size of the reserved hole 40 .

[0043] S2. A locking piece 31 is installed on the connecting block to lock the middle cover plate 1 and the expansion plate 2.

[0044] S3, installing the adjustable reserved hole 40 anti-falling device on the reserved hole 40 to cover the reserved hole 40.

[0045] S4. After the adjustable reserved hole 40 anti-falling device is installed in the reserved hole 40, a limit piece is detachably inserted into a weight reduction hole 200 of the four expansion plates 2, so that the end of the limit piece extends to the side of the expansion plate 2 away from the middle cover plate 1 and abuts against the inner wall of the reserved hole 40.

[0046] The adjustable reserved hole anti-falling device of the present invention is formed by sliding and unfolding four expansion plates on the middle cover plate to form an adjustable reserved hole anti-falling device with adjustable size, so as to provide a safe and reliable hole protection function, effectively reduce the occurrence of high-altitude falling accidents and object striking accidents caused by the lack of reliable protection of the hole during the construction process, and can be suitable for various reserved holes of different sizes and can be reused.

[0047] The adjustable reserved hole anti-falling device of the present invention is easy to install and can be quickly positioned.

[0048] The adjustable reserved hole anti-falling device of the present invention effectively prevents safety hazards of falling during construction around the reserved hole.

[0049] The adjustable reserved hole anti-falling device of the present invention is easy to transfer.

[0050] The adjustable reserved hole anti-falling device of the present invention can use a variety of reserved holes of different sizes.

[0051] The adjustable reserved hole anti-falling device of the present invention can be reused.

[0052] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An adjustable reserved hole anti-falling device, characterized in that: include: middle A cover plate, wherein four sliding grooves are formed at the bottom of the middle cover plate, and the four sliding grooves are arranged at intervals along the circumferential direction of the plane center of the middle cover plate; Four expansion plates, the four expansion plates are arranged below the middle cover plate along the circumferential direction of the middle cover plate, an upper slide groove is formed on the top of the expansion plate, and the upper slide grooves of the four expansion plates correspond to the positions of the four lower slide grooves one by one; A connecting block, the upper portion of which is slidably disposed in the lower sliding groove, the lower portion of which is slidably disposed in the upper sliding groove, and a locking member for locking the middle cover plate and the expansion plate is installed on the connecting block; A protection net is connected between two adjacent expansion boards.

2. The adjustable reserved hole anti-falling device according to claim 1, characterized in that: The middle cover plate and the extension plate are rectangular.

3. The adjustable reserved hole anti-falling device according to claim 2 is characterized in that: The lower sliding groove is arranged along the length direction of the diagonal line of the middle cover plate.

4. The adjustable reserved hole anti-falling device according to claim 2 is characterized in that: The upper slide groove is arranged along the length direction of the diagonal line of the middle cover plate.

5. The adjustable reserved hole anti-falling device according to claim 1, characterized in that: The connecting block is provided with a first locking hole, the middle cover plate is provided with a plurality of second locking holes, the second locking holes are connected to the lower sliding groove, the extension plate is provided with a plurality of third locking holes, the third locking holes are connected to the upper sliding groove, the locking piece is detachably inserted into the first locking hole, one end of the locking piece is detachably inserted into a second locking hole, and the other end of the locking piece is detachably inserted into a third locking hole.

6. The adjustable reserved hole anti-falling device according to claim 1, characterized in that: The expansion plate is provided with a plurality of weight-reducing holes.

7. The adjustable reserved hole anti-falling device according to claim 6, characterized in that: A limiting member is detachably inserted into a weight-reducing hole, and an end of the limiting member extends to a side of the expansion plate away from the middle cover plate and abuts against an inner wall of the reserved hole.

8. A construction method of the adjustable reserved hole anti-falling device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Based on the size of the reserved hole, the four extension plates are slid in a direction away from the center of the plane of the middle cover plate, so that the outer contour of the adjustable reserved hole anti-falling device is larger than the size of the reserved hole; A locking piece is installed on the connecting block to lock the middle cover plate and the expansion plate; The adjustable reserved hole anti-falling device is installed on the reserved hole to cover the reserved hole.

9. The construction method according to claim 8, characterized in that: It also includes, after the adjustable reserved hole anti-falling device is installed in the reserved hole, removably inserting a limit piece in a weight-reducing hole of four expansion plates, so that the end of the limit piece extends to the side of the expansion plate away from the middle cover plate and abuts against the inner wall of the reserved hole.

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