Telescopic hole protection device

Abstract

The invention relates to a telescopic hole protection device which comprises a supporting frame and a panel. The supporting frame is a rectangular frame and is formed by connecting four telescopic rods, and the size of the supporting frame can be changed through stretching and retracting of the telescopic rods. The panel is installed above the supporting frame in a covering mode and composed of four cover plates which are sequentially arranged in a stacked mode and slidably connected, and the panel can be unfolded through sliding of the four cover plates to form a rectangular panel structure matched with the supporting frame in size. When the device is used, the size of the supporting frame can be changed through stretching and retracting of the telescopic rods according to the size of a hole, the size of the panel can be adjusted through sliding of the four cover plates, therefore, the holes of different sizes are protected, the application range is wide, turnover use can be achieved, and waste of materials is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a telescopic hole protection device. Background Art

[0002] In the field of construction engineering, horizontal openings of various sizes are often formed during the construction process, such as pipeline reserved holes, elevator shaft holes, ventilation shaft holes, etc. Among them, the short side length between 25-500mm is a small opening, and the short side length between 500-1500mm is a medium opening. If these openings are not properly protected, it is very easy to cause safety accidents such as construction workers falling and materials falling.

[0003] At present, the common protective measure for horizontal openings is to use fixed-size steel plates or wooden boards to directly cover the top of the opening. Although this method has easy-to-obtain materials and simple operation, it cannot be adapted to openings of different sizes. Different covers need to be customized according to the size of each opening, resulting in serious material waste. Summary of the invention

[0004] The main purpose of the present invention is to propose a telescopic hole protection device, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A telescopic hole protection device comprises a support frame and a panel;

[0007] The support frame is a rectangular frame, which is formed by four telescopic rods connected to each other, and the size of the support frame can be changed by extending and retracting the telescopic rods;

[0008] The panel is installed on top of the support frame and consists of four cover plates stacked in sequence and slidably connected. The panel can be expanded by sliding the four cover plates to form a rectangular panel structure that matches the size of the support frame.

[0009] Preferably, the telescopic rod includes a fixed steel section and a telescopic steel section, and the telescopic steel section is slidably connected to the fixed steel section.

[0010] Preferably, the telescopic steel is slidably embedded in the fixed steel, a first axis pin hole is provided on the fixed steel, and a plurality of first adjustment holes are provided on the telescopic steel along the length direction.

[0011] Preferably, the telescopic rod on the long side of the support frame includes a fixed steel and a telescopic steel, and the telescopic rod on the short side of the support frame includes a fixed steel and two telescopic steels.

[0012] Preferably, the four cover plates are respectively a first cover plate, a second cover plate, a third cover plate and a fourth cover plate, the first cover plate is fixed on a fixed steel section at a corner of the support frame, the second cover plate is slidably installed on the upper surface of the first cover plate forward and backward, the third cover plate is slidably installed on the upper surface of the second cover plate left and right, and the fourth cover plate is slidably installed on the upper surface of the third cover plate forward and backward.

[0013] Preferably, two slide grooves are provided on the upper surface of the lower cover plate, and two slide bars are fixed on the lower surface of the upper cover plate, wherein the slide bars are slidably embedded in the slide grooves.

[0014] Preferably, an oblique support rod is fixed diagonally to the support frame, and the oblique support rod includes a fixed oblique tie rod and a telescopic oblique tie rod, the telescopic oblique tie rod is slidably embedded in the fixed oblique tie rod, a second axle pin hole is opened on the fixed oblique tie rod, and a plurality of second adjustment holes are opened on the telescopic oblique tie rod along the length direction.

[0015] Preferably, bolts are fixed at the bottom of the four corners of the support frame.

[0016] The present invention provides a telescopic hole protection device, which has the following beneficial effects:

[0017] When the present invention is in use, the size of the support frame can be changed according to the size of the hole by extending and retracting the telescopic rod and the size of the panel can be adjusted by sliding the four cover plates, so as to protect holes of different sizes. It has a wide range of applications and can be used cyclically to avoid waste of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A top view of the telescopic hole protection device of the present invention;

[0019] Figure 2 It is a front view of the telescopic hole protection device of the present invention;

[0020] Figure 3 It is a side view of the telescopic hole protection device of the present invention;

[0021] Figure 4 is a schematic diagram of the unfolding of the panel of the present invention;

[0022] Figure 5 It is a schematic diagram of the connection between the cover plates of the present invention;

[0023] Figure 6 It is a schematic structural diagram of the oblique support rod of the present invention.

[0024] In the figure: 1. telescopic rod; 11. fixed steel; 12. telescopic steel; 13. first axle pin hole; 14. first adjustment hole; 2. cover plate; 21. first cover plate; 22. second cover plate; 23. third cover plate; 24. fourth cover plate; 201. slide groove; 202. slide bar; 31. fixed diagonal rod; 32. telescopic diagonal rod; 33. second axle pin hole; 34. second adjustment hole; 4. bolt. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example

[0030] Reference Figure 1-3, a telescopic hole protection device, including a support frame and a panel;

[0031] The support frame is a rectangular frame, which is formed by four telescopic rods 1 connected to each other, and the size of the support frame can be changed by extending and retracting the telescopic rods 1;

[0032] The panel is installed on top of the support frame and is composed of four cover plates 2 stacked in sequence and slidably connected. The panel can be expanded by sliding the four cover plates 2 to form a rectangular panel structure that matches the size of the support frame.

[0033] When the present invention is in use, the size of the support frame can be changed according to the size of the hole by extending and retracting the telescopic rod 1 and the size of the panel can be adjusted by sliding the four cover plates 2, so as to protect holes of different sizes. It has a wide range of applications and can be used cyclically to avoid waste of materials.

[0034] In a specific embodiment, the telescopic rod 1 includes a fixed steel 11 and a telescopic steel 12 , and the telescopic steel 12 is slidably connected to the fixed steel 11 .

[0035] In a specific implementation scheme, the telescopic steel 12 is slidably embedded in the fixed steel 11, a first axial pin hole 13 is opened on the fixed steel 11, and a plurality of first adjustment holes 14 are opened on the telescopic steel 12 along the length direction. The overall length of the telescopic rod 1 can be controlled by sliding to control the telescopic length of the telescopic steel 12, so as to adapt to holes of different sizes. After the telescopic length is adjusted, the pin shaft is inserted into the first axial pin hole 13 and the corresponding first adjustment hole 14 to fix the telescopic steel 12 and the fixed steel 11. Different first adjustment holes 14 correspond to different telescopic lengths.

[0036] In a specific embodiment, referring to Figure 2 The telescopic rod 1 on the long side of the support frame includes a fixed steel 11 and a telescopic steel 12, referring to Figure 3 The telescopic rod 1 on the short side of the support frame includes a fixed steel 11 and two telescopic steels 12, and the two telescopic steels 12 are also fixed by the sliding method mentioned above.

[0037] In a specific embodiment, referring to Figure 4, the four cover plates 2 are respectively a first cover plate 21, a second cover plate 22, a third cover plate 23 and a fourth cover plate 24. The first cover plate 21 is fixed on the fixed section steel 11 at a corner of the support frame. The second cover plate 22 is slidably installed on the upper surface of the first cover plate 21 in the front and back directions. The third cover plate 23 is slidably installed on the upper surface of the second cover plate 22 in the left and right directions. The fourth cover plate 24 is slid in the front and back directions on the upper surface of the third cover plate 23. After the four cover plates 2 are slid and unfolded, they form a rectangular "field" character structure. And since the four cover plates 2 are stacked, the unfolding of the cover plates 2 will not affect each other and can be quickly unfolded. In addition, the height of the fixed section steel 11 at the four corners of the support frame can be adaptively set, and the height of the fixed section steel 11 at the corresponding position is adapted to the height of each cover plate 2 for carrying each cover plate 2.

[0038] In a specific embodiment, referring to Figure 5 , a specific sliding connection method between the cover plates 2 is provided. Two sliding grooves 201 are opened on the upper surface of the lower cover plate 2, and two sliding strips 202 are fixed on the lower surface of the upper cover plate 2. The sliding strips 202 are slidably embedded in the sliding grooves 201.

[0039] In a specific embodiment, referring to Figure 6 , diagonal bracing rods are fixed at the diagonals of the support frame. The diagonal bracing rods include a fixed diagonal tie rod 31 and a telescopic diagonal tie rod 32. The telescopic diagonal tie rod 32 is slidably embedded in the fixed diagonal tie rod 31. A second pin hole 33 is opened on the fixed diagonal tie rod 31, and a plurality of second adjustment holes 34 are opened along the length direction on the telescopic diagonal tie rod 32. By sliding and controlling the telescopic length of the telescopic diagonal tie rod 32, the length of the diagonal bracing rod can be controlled, so as to adapt to support frames of different sizes. The two end parts of the diagonal bracing rod are detachably fixed to the support frame. The diagonal bracing rod and the support frame form a stable triangular support structure, significantly improving the bearing capacity and stability of the support frame.

[0040] In a specific embodiment, referring to Figure 2-3 , bolts 4 are fixed at the bottoms of the four corners of the support frame. After the support frame is telescoped, the bolts 4 abut against the inner wall of the hole. In this way, the support frame can be limited by the bolts 4 to prevent the support frame from shifting in the hole and ensure the protection effect.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A telescopic hole protection device, characterized in that: Includes support frame and panels; The support frame is a rectangular frame, which is formed by four telescopic rods connected to each other, and the size of the support frame can be changed by extending and retracting the telescopic rods; The panel is installed on top of the support frame and consists of four cover plates stacked in sequence and slidably connected. The panel can be expanded by sliding the four cover plates to form a rectangular panel structure that matches the size of the support frame.

2. A telescopic hole protection device according to claim 1, characterized in that: The telescopic rod comprises a fixed steel section and a telescopic steel section, and the telescopic steel section is slidably connected to the fixed steel section.

3. A telescopic hole protection device according to claim 2, characterized in that: The telescopic steel is slidably embedded in the fixed steel, a first shaft pin hole is provided on the fixed steel, and a plurality of first adjustment holes are provided on the telescopic steel along the length direction.

4. A telescopic hole protection device according to claim 2, characterized in that: The telescopic rod on the long side of the support frame includes a fixed steel and a telescopic steel, and the telescopic rod on the short side of the support frame includes a fixed steel and two telescopic steels.

5. The telescopic hole protection device according to claim 2, characterized in that: The four cover plates are the first cover plate, the second cover plate, the third cover plate and the fourth cover plate. The first cover plate is fixed on the fixed steel at a corner of the support frame. The second cover plate is slidably installed on the upper surface of the first cover plate forward and backward. The third cover plate is slidably installed on the upper surface of the second cover plate left and right. The fourth cover plate slides forward and backward on the upper surface of the third cover plate.

6. The telescopic hole protection device according to claim 1, characterized in that: The upper surface of the lower cover plate is provided with two slide grooves, and the lower surface of the upper cover plate is fixed with two slide bars, which are slidably embedded in the slide grooves.

7. The telescopic hole protection device according to claim 1, characterized in that: The support frame is diagonally fixed with an oblique support rod, and the oblique support rod includes a fixed oblique rod and a telescopic oblique rod. The telescopic oblique rod is slidably embedded in the fixed oblique rod. The fixed oblique rod is provided with a second axle pin hole, and the telescopic oblique rod is provided with a plurality of second adjustment holes along the length direction.

8. The telescopic hole protection device according to claim 1, characterized in that: Bolts are fixed at the bottom of the four corners of the support frame.

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