A telescopic portal guard

Abstract

The present application relates to a kind of telescopic hole protection device, including support frame and panel;The support frame is rectangular frame, by four telescopic rods are interconnected, the size of support frame can be changed by the telescopic rod telescopic;The panel covers installation in the above-mentioned support frame, by four coverings that are sequentially stacked and slidingly connected, the panel can be formed by the sliding of four coverings Expansion rectangular panel structure that size is adapted to the support frame.This application can change the size of support frame by the telescopic rod telescopic and adjust the size of panel by the sliding of four coverings when using, to protect the hole of different size, wide application range, can be used, avoid the waste of material.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a telescopic opening protection device. Background Technology

[0002] In the field of building construction, horizontal openings of various sizes are frequently created during construction, such as pipework openings, elevator shafts, and ventilation shafts. Openings with a shorter side length between 25-500mm are classified as small, while those between 500-1500mm are considered medium-sized. If these openings are not properly protected, they can easily lead to safety accidents such as workers falling and materials falling.

[0003] Currently, the common protective measures for horizontal openings mainly involve directly covering the opening with a steel plate or wooden board of a fixed size. Although this method is easy to use and the materials are readily available, it cannot be adapted to openings of different sizes. Different cover plates need to be customized according to the size of each opening, resulting in serious material waste. Summary of the Invention

[0004] The main objective of this invention is to provide a telescopic opening protection device that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A retractable opening protection device includes a support frame and a panel;

[0007] The support frame is a rectangular frame, which is composed of four telescopic rods connected to each other. 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 that are stacked and slidably connected. The panel can be unfolded 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, wherein the telescopic steel section and the fixed steel section are slidably connected.

[0010] Preferably, the telescopic steel is slidably embedded in the fixed steel, the fixed steel has a first shaft pin hole, and the telescopic steel has a plurality of first adjustment holes along its length.

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

[0012] Preferably, the four cover plates are a first cover plate, a second cover plate, a third cover plate, and a fourth cover plate. The first cover plate is fixed to a fixed steel section at one corner of the support frame. The second cover plate is slidably mounted on the upper surface of the first cover plate. The third cover plate is slidably mounted on the upper surface of the second cover plate. The fourth cover plate is slidably mounted on the upper surface of the third cover plate.

[0013] Preferably, the upper surface of the lower cover plate has two sliding grooves, and the lower surface of the upper cover plate has two sliding strips fixed therein, the sliding strips being slidably embedded in the sliding grooves.

[0014] Preferably, the support frame is fixed with diagonal support rods, the diagonal support rods include fixed diagonal rods and telescopic diagonal rods, the telescopic diagonal rods are slidably embedded in the fixed diagonal rods, the fixed diagonal rods are provided with second shaft pin holes, and the telescopic diagonal rods are provided with a plurality of second adjustment holes along the length direction.

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

[0016] This invention provides a telescopic opening protection device, which has the following beneficial effects:

[0017] When in use, this invention can adjust the size of the support frame by extending and retracting the telescopic rod and adjust the size of the panel by sliding the four cover plates according to the size of the opening, thereby protecting openings of different sizes. It has a wide range of applications, can be reused, and avoids material waste. Attached Figure Description

[0018] Figure 1 This is a top view of the telescopic opening protection device of the present invention;

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

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

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

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

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

[0024] In the diagram: 1. Telescopic rod; 11. Fixed steel section; 12. Telescopic steel section; 13. First shaft 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 tie rod; 32. Telescopic diagonal tie rod; 33. Second shaft pin hole; 34. Second adjustment hole; 4. Bolt. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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 scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Example

[0030] Reference Figure 1-3A retractable opening protection device, comprising a support frame and a panel;

[0031] The support frame is a rectangular frame, which is composed of four telescopic rods 1 connected to each other. 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 consists of four cover plates 2 that are stacked and slidably connected in sequence. The panel can be unfolded by sliding the four cover plates 2 to form a rectangular panel structure that matches the size of the support frame.

[0033] When in use, this invention can adjust the size of the support frame by extending and retracting the telescopic rod 1 and adjust the size of the panel by sliding the four cover plates 2 according to the size of the opening, thereby protecting openings of different sizes. It has a wide range of applications, can be reused, and avoids material waste.

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

[0035] In one specific implementation, the telescopic steel 12 is slidably embedded in the fixed steel 11. The fixed steel 11 has a first shaft pin hole 13, and the telescopic steel 12 has a plurality of first adjustment holes 14 along its length. By sliding and controlling the telescopic length of the telescopic steel 12, the overall length of the telescopic rod 1 can be controlled, thereby adapting to openings of different sizes. After the telescopic length is adjusted, the pin is inserted into the first shaft 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 implementation plan, refer to Figure 2 The telescopic rod 1 on the long side of the support frame includes a fixed steel section 11 and a telescopic steel section 12, as shown in the figure. Figure 3 The telescopic rod 1 on the short side of the support frame includes a fixed steel section 11 and two telescopic steel sections 12, and the two telescopic steel sections 12 are also fixed by the above-mentioned sliding method.

[0037] In a specific implementation plan, refer 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 steel section 11 at a corner of the support frame. The second cover plate 22 is slidably installed front and back on the upper surface of the first cover plate 21. The third cover plate 23 is slidably installed left and right on the upper surface of the second cover plate 22. The fourth cover plate 24 is slidably installed front and back 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 because 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 steel sections 11 at the four corners of the support frame can be adaptively set, and the height of the fixed steel section 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 braces are fixed to the diagonals of the support frame. The diagonal braces 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. A plurality of second adjustment holes 34 are opened along the length direction of 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 brace can be controlled, so as to adapt to support frames of different sizes. The two ends of the diagonal brace are detachably fixed to the support frame. The diagonal brace 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 to 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 ensuring 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 for 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 telescoping portal guard characterized by: The support frame is a rectangular frame formed by four telescopic rods connected with each other, and the size of the support frame can be changed by the telescopic rods. The panel covers the support frame and is composed of four cover plates which are sequentially stacked and slidably connected. The four cover plates are 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 at a corner of the support frame.

2. A telescoping portal guard according to claim 1, wherein: The telescopic rod includes a fixed steel and a telescopic steel.

3. A telescoping portal guard according to claim 2, wherein: The telescopic steel is slidably connected with the fixed steel.

4. A telescoping portal guard according to claim 2, wherein: The telescopic steel is slidably embedded in the fixed steel.

5. A telescoping portal guard according to claim 1, wherein: The fixed steel is provided with a first shaft pin hole.

6. A telescoping portal guard according to claim 1, wherein: The telescopic steel is provided with a plurality of first adjusting holes along the length direction.

7. A telescoping portal guard according to claim 1, wherein: The telescopic rod on the long side of the support frame includes one fixed steel and one telescopic steel. The telescopic rod on the short side of the support frame includes one fixed steel and two telescopic steels. The upper surface of the lower cover plate is provided with two sliding grooves. The lower surface of the upper cover plate is fixed with two sliding strips. The sliding strips are slidably embedded in the sliding grooves. The diagonal of the support frame is fixed with a diagonal support rod. The diagonal support rod includes a fixed diagonal rod and a telescopic diagonal rod. The telescopic diagonal rod is slidably embedded in the fixed diagonal rod. The fixed diagonal rod is provided with a second shaft pin hole. The telescopic diagonal rod is provided with a plurality of second adjusting holes along the length direction. The four corners of the support frame are fixed with bolts.

Images