Telescopic protective cover for hole of construction working face

Abstract

The utility model discloses a telescopic construction working face hole protective cover which comprises a positioning barrel, four sets of inserting grooves are formed in the outer portion of the positioning barrel in the circumferential direction, each set of inserting grooves comprise three inclined grooves, the three inclined grooves are vertically arranged at intervals, and each inclined groove is downwards and obliquely arranged from inside to outside; the number of the supporting rods is four, each supporting rod is matched with the corresponding inclined groove in an inserted mode, and hook rings are arranged on the two sides of each supporting rod respectively. At least two handrails are arranged between every two adjacent supporting rods, hooks matched with the hook rings are arranged at the two ends of each handrail respectively, and the handrails are telescopic. During use, the size of the cover opening can be adjusted by adjusting the insertion position according to the size of the hole, so that the cover opening is adaptive to the sizes of different holes, and the use flexibility is improved. And during use, the hole is directly covered, so that the construction safety is improved. And use and disassembly are simple, and carrying is convenient.

Description

Technical Field

[0001] This application relates to the field of building construction auxiliary technologies, and particularly to a retractable protective cover for construction work surface openings. Background Art

[0002] With the rapid development of the construction industry, the height of buildings is increasing continuously, and the complexity of building shapes is also increasing continuously. The safety protection of horizontal openings during the construction process is an important part of building safety construction. There are often various holes and openings on the structures at the construction site. High-altitude operations beside the edges of holes and openings are collectively referred to as opening operations. The distinction between holes and openings is based on their size, and there are also slight differences in the horizontal and vertical directions. For example, on horizontal surfaces such as floors, roofs, and platforms, those with a short side dimension less than 25 cm are called holes, and on vertical surfaces such as walls (i.e., perpendicular to the floor and ground), those with a height less than 75 cm are also called holes. On horizontal surfaces such as floors, roofs, and platforms, those with a short side dimension equal to or greater than 25 cm, and on vertical surfaces such as walls, those with a height equal to or greater than 75 cm and a width greater than 45 cm are called openings. In addition, any high-altitude operation with a depth of 2 meters or more is also called an opening operation. Currently, most of the opening protections are to add guardrails at the entrance of the door opening. This is a very imperfect protection measure, which only blocks the four sides of the door opening entrance, while the vertical direction is still open, and it cannot be guaranteed that no one will fall during the construction process, so there is no guarantee in terms of safety. Summary of the Invention

[0003] An embodiment of this specification provides a retractable protective cover for construction work surface openings to solve the problem of imperfect opening protection in the prior art.

[0004] The technical solution provided by the embodiment of this specification is as follows:

[0005] An embodiment of this application provides a retractable protective cover for construction work surface openings, including:

[0006] A positioning barrel, with four groups of slots provided on the outer circumference. Each group of slots includes three inclined slots, and the three inclined slots are vertically spaced. Each inclined slot is inclined downward from the inside to the outside.

[0007] Support rods, with four support rods provided. Each support rod is inserted and matched with the inclined slot, and hook rings are respectively provided on both sides of each support rod.

[0008] Railings, at least two railings are provided between two adjacent support rods. Hooks matching the hook rings are respectively provided at both ends of each railing, and the railings are retractable.

[0009] Further, for the inclined slots in the same horizontal plane, their inclination angles are the same.

[0010] Further, the positioning barrel is an open structure that penetrates up and down.

[0011] Further, the support rod is telescopic.

[0012] Further, an annular groove is provided on the outer circle near the top end of the support rod, an annular baffle is provided on the annular groove, the annular baffle can move on the annular groove, and the diameter of the annular baffle is greater than the diameter of the inclined groove.

[0013] Further, a secondary rod is provided between the two railings, and the secondary rod is telescopic.

[0014] Further, the secondary rod is detachably connected to the railing.

[0015] Further, a reflective strip is provided on the outside of the positioning barrel.

[0016] The above at least one technical solution adopted in the embodiments of the present application can achieve the following beneficial effects: During use, the insertion position can be adjusted according to the size of the hole to adjust the size of the covering opening, so as to adapt to the sizes of different holes and improve the flexibility of use. During use, directly cover the hole to improve the construction safety. And it is simple to disassemble and assemble and convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the present specification.

[0019] Figure 2 It is for the embodiment of the present specification Figure 1 Schematic cross-sectional structure diagram taken along line A-A.

[0020] Figure 3 It is a schematic diagram of the support rod structure provided by the embodiment of the present specification.

[0021] Figure 4 It is a schematic diagram of the railing structure provided by the embodiment of the present specification. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0023] The technical solutions provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] An embodiment of this specification provides a retractable protective cover for the opening of a construction work surface. Please refer to FIG. 1 and Figure 2 as shown, which includes a positioning barrel 1, a support rod 2, and a railing 3.

[0025] Among them, four groups of slots are provided on the outer circumference of the positioning barrel 1. The four groups of slots are equally spaced. Each group of slots includes three inclined slots 11. The three inclined slots are vertically spaced. Each inclined slot is inclined downward from the inside to the outside; the inclined angles of the inclined slots 11 in the same horizontal plane among the four groups are the same. This enables the protective cover opening to be kept flush when inserting the support rod 2. There are four support rods 2. Each support rod 2 is inserted and matched with the inclined slot 11. Hook rings 21 are respectively provided on both sides of each support rod 2. Please refer to Figure 3 as shown; the position where the hook rings 21 are provided is set according to needs and is not limited here. It is required that the setting position can smoothly connect the railing to the support rod 2. At least two railings 3 are provided between two adjacent support rods 2. Please refer to Figure 4 as shown. Hooks 31 matching the hook rings 21 are respectively provided at both ends of each railing 3. The railing 3 is retractable. When the support rod 2 is inserted into different inclined slots 11, the length of the retractable railing 3 can be adjusted to smoothly connect it to the two support rods 2. The retraction method of the railing 3 can adopt a common telescopic rod, which will not be described here. The following retraction methods are the same and will not be described one by one. The inclined slot 11 can adopt a blind hole slot.

[0026] In this embodiment, when in use, according to the size of the opening, select an inclined slot with an appropriate inclination angle so that the opening of the protective cover can seal the opening. After selecting the appropriate inclined slot, insert the support rod into the inclined slot. The support rod needs to be inserted into the inclined slots in the same horizontal plane. Then connect the railing to the support rod through the hook. After installation, it can be covered on the opening, which is convenient and fast.

[0027] Further preferably, the positioning barrel is an open structure that penetrates up and down. This reduces the overall weight.

[0028] Further preferably, the support rod 2 is retractable. The retraction method adopts a common retraction method, including an outer tube, an inner rod slidably connected thereto, a limiting hole provided on the outer tube, and a limiting protrusion provided on the inner rod. This further expands the range of the opening of the protective cover and improves the flexibility of use.

[0029] Further preferably, if the chute adopts a through hole, an annular groove 22 is provided on the outer ring near the top of the support rod 2, and an annular baffle 23 is provided on the annular groove. The annular baffle 23 can move on the annular groove 22, and the diameter of the annular baffle is larger than that of the chute. It plays a limiting role in the support rod inserted into the chute. At the same time, since the annular baffle is movable and has high flexibility, after the support rod is inserted into the chute, the annular baffle can fit with the positioning barrel. It not only plays a limiting role but also does not affect the insertion of the support rod into the chute.

[0030] Further preferably, please continue to refer to Figure 1 As shown, a secondary rod 4 is provided between the two railings, and the secondary rod can be telescopic. The connection method is the same as that of the railing and the support rod, which will not be described here. It increases the surface density of the protective cover and further improves safety. The secondary rod is detachably connected to the railing.

[0031] Further preferably, a reflective strip is provided on the outside of the positioning barrel.

[0032] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, commodity or device comprising the said element.

[0033] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A retractable protective cover for the opening of a construction working surface, characterized in that, Including: A positioning bucket, with four groups of slots arranged circumferentially on the outside. Each group of slots includes three inclined slots, and the three inclined slots are vertically spaced. Each inclined slot is inclined downward from the inside to the outside; Support rods, with four support rods. Each support rod is inserted and matched with the inclined slot, and hook rings are respectively arranged on both sides of each support rod; Railings, at least two railings are arranged between two adjacent support rods. Hooks matching the hook rings are respectively arranged at both ends of each railing, and the railings are telescopic.

2. The retractable working surface hole protective cover according to claim 1, characterized in that The inclined slots on the same horizontal plane have the same inclination angle.

3. A retractable protective cover for the opening of a construction working surface according to claim 1, wherein, The positioning bucket is an open structure that penetrates up and down.

4. The retractable safety guard for the opening of a construction working surface according to claim 1, wherein, The support rods are telescopic.

5. The telescopic construction operation surface hole protective cover according to claim 1, characterized in that An annular groove is arranged on the outer ring near the top of the support rod, and an annular baffle is arranged on the annular groove. The annular baffle can move on the annular groove, and the diameter of the annular baffle is larger than the diameter of the inclined slot.

6. The retractable hole protective cover for construction working surface according to claim 1, characterized in that, A secondary rod is arranged between two railings, and the secondary rod is telescopic.

7. The telescopic construction work surface hole protective cover according to claim 6, characterized in that, The secondary rod is detachably connected to the railing.

8. The retractable hole protective cover for a construction working surface according to claim 6, characterized in that, Reflective strips are arranged on the outside of the positioning bucket.

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