Temporary protection device for stairs

Abstract

The utility model discloses a temporary stair protection device, and relates to the technical field of building construction. The temporary stair protection device comprises a protection unit, and the protection unit comprises two vertically-arranged vertical rods, a transverse rod arranged between the two vertical rods and embedded parts arranged at the lower ends of the vertical rods; the embedded part comprises an embedded pipe used for being vertically embedded in stair concrete and an annular fixing plate fixed to an opening in the upper end of the embedded pipe. The lower end of the vertical rod is used for penetrating through an inner hole of the annular fixing plate and extending into the embedded pipe. The annular fixing plate is provided with a notch communicated with an inner hole of the annular fixing plate, and the vertical rod is provided with a clamping block which is used for penetrating through the notch and is connected to the lower portion of the annular fixing plate in a clamped mode after the vertical rod rotates. The stair temporary protection device provided by the embodiment of the utility model is simple in structure and high in mounting and dismounting speed, and can ensure the progress and safety of a site for some projects with tight construction periods.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a temporary protective device for stairs. Background Art

[0002] During the construction process at a construction site, temporary protective devices are often constructed on the side of the stairs to improve the safety of construction workers walking on the stairs. At present, there are mainly two types of temporary protective devices for stairs: 1. Using steel pipes for protection; 2. Using tool-type guardrails.

[0003] However, the above temporary protective devices have the following shortcomings: 1. Steel pipes are used for protective construction, which requires the steel pipes to be pre-buried in advance. When the steel pipes are removed later, the concrete structure of the stairs will be damaged; 2. A tool-type guardrail is used, and a pad is set at the lower part of the vertical pole of the guardrail. The pad is connected to the stairs through anchor bolts, but it needs to be standardized according to the length of the stairs, and the turnover rate is not high; 3. Both of these temporary protective devices have the problem of slow installation and removal speed, which affects the safety and progress of the site for some projects with tight construction schedules. Utility Model Content

[0004] The purpose of the present application is to provide a temporary stair protection device to solve the problem of slow installation and removal speed of existing temporary protection devices.

[0005] The technical solution adopted by the present application to solve the technical problem is: a temporary staircase protection device, comprising a protection unit, the protection unit comprising at least two vertically spaced vertical poles, a cross bar arranged between two adjacent vertical poles, and an embedded part arranged at the lower end of each vertical pole;

[0006] The embedded part includes an embedded pipe for vertically embedding in the staircase concrete, and an annular fixing plate fixed to the upper opening of the embedded pipe; the lower end of the vertical rod is used to pass through the inner hole of the annular fixing plate and extend into the embedded pipe;

[0007] The annular fixing plate is provided with a notch communicating with the inner hole thereof, and the vertical rod is provided with a clamping block for passing through the notch and clamping under the annular fixing plate after the vertical rod is rotated.

[0008] Furthermore, at least two cross bars are arranged between two adjacent vertical bars of the protection unit.

[0009] Furthermore, two ends of the cross bar are movably connected to the two vertical bars respectively, so that the cross bar can be flipped in a vertical plane.

[0010] Furthermore, the cross bar is connected to the vertical bar via a rotating fastener.

[0011] Furthermore, the cross bar is a multi-section telescopic structure.

[0012] Furthermore, the cross-section of the cross bar is rectangular.

[0013] Furthermore, at least two notches are evenly distributed on the circumference of the annular fixing plate, and at least two clamping blocks are evenly distributed on the circumference of the vertical pole. The number of the notches is consistent with that of the clamping blocks and corresponds one to one.

[0014] Furthermore, the projections of the notch and the block on the horizontal plane are sectors with the same shape.

[0015] Furthermore, the protection unit includes at least two protection units arranged in parallel in sequence, and the vertical poles of two adjacent protection units are connected by a folding connection piece, so that the two adjacent protection units can be folded and unfolded in a horizontal plane.

[0016] Furthermore, the folding connecting member includes a vertically arranged rotating shaft and two connecting plates rotatably connected to the rotating shaft, and the two connecting plates are respectively connected to the two vertical poles.

[0017] Beneficial effects of this application:

[0018] The temporary stair protection device provided in the embodiment of the present application has a simple structure and is quick to install and remove. For projects with a tight construction schedule, it can ensure the progress and safety of the site. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a temporary stair protection device provided in an embodiment of the present application;

[0021] Figure 2 It is a structural diagram of the connection between the vertical pole and the embedded parts;

[0022] Figure 3 is another structural schematic diagram of the temporary stair protection device provided in an embodiment of the present application;

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0024] Reference numerals:

[0025] 1- Protection unit;

[0026] 10-pole; 101-block;

[0027] 11- horizontal bar;

[0028] 12-embedded part; 121-embedded pipe; 122-annular fixing plate; 123-notch;

[0029] 13- Rotating fastener;

[0030] 2- Folding connector;

[0031] 21- rotating shaft;

[0032] 22-Connecting piece. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0034] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0035] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the product of the application is usually placed when in use, or is the orientation or positional relationship commonly understood by those skilled in the art. The terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, and an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements.

[0036] See also Figure 1 , Figure 2The temporary stair protection device provided in the embodiment of the present application includes a protection unit 1, which includes at least two vertically spaced vertical poles 10, a cross bar 11 arranged between two adjacent vertical poles 10, and an embedded part 12 arranged at the lower end of each vertical pole 10; the embedded part 12 includes an embedded pipe 121 for vertically embedding in the concrete of the stairs, and an annular fixing plate 122 fixed to the upper end opening of the embedded pipe 121; the lower end of the vertical pole 10 is used to pass through the inner hole of the annular fixing plate 122 and extend into the embedded pipe 121; the annular fixing plate 122 is provided with a notch 123 connected to its inner hole, and the vertical pole 10 is provided with a block 101 for passing through the notch 123 and being clamped under the annular fixing plate 122 after the vertical pole 10 is rotated.

[0037] The installation and removal process of the temporary stair protection device provided in the embodiment of the present application is as follows: first, determine the number and embedded position of the embedded parts 12, and during the concrete pouring process of the stairs, embed the embedded pipe 121 in the concrete simultaneously. After the stairs are maintained and qualified, the lower end of the vertical pole 10 is inserted into the embedded pipe 121 after passing the inner hole of the annular fixing plate 122 downward, and then the vertical pole 10 is rotated so that the block 101 is stuck under the annular fixing plate 122 to achieve the connection between the vertical pole 10 and the embedded part 12; then, the cross bar 11 is connected between the two vertical poles 10, and the installation of the temporary stair protection device is completed. After the temporary stair protection device is used, it can be dismantled in reverse. Among them, after the vertical pole 10 is dismantled, the embedded part 12 does not need to be dismantled, and cement mortar can be poured into the inner hole of the embedded pipe 121 to seal it later, and the inner cavity of the embedded pipe 121 can also be used as the fixing hole of the final guardrail.

[0038] The temporary staircase protection device provided by the embodiment of the present application, when installing the opposing rod 10, first align the lower end of the upright rod 10 with the inner hole of the annular fixing plate 122, and align the block 101 with the notch 123, then insert the lower end of the upright rod 10 downward through the inner hole of the annular fixing plate 122 into the embedded pipe 121, and then rotate the upright rod 10 so that the block 101 is misaligned with the notch 123 and is stuck under the annular fixing plate 122, thereby firmly connecting the upright rod 10 with the embedded part 12. When removing the opposing rod 10, first rotate the upright rod 10 so that the block 101 is aligned with the notch 123, and then pull the upright rod 10 upward.

[0039] The temporary stair protection device provided in the embodiment of the present application has a simple structure and is quick to install and dismantle. For some projects with a tight schedule, it can ensure the progress and safety of the site. Compared with the use of steel pipes for protective construction, it will not damage the concrete structure of the stairs during dismantling. Compared with the use of tool-type guardrails, it does not require standardized processing, is easy to install and dismantle, and has a high turnover rate.

[0040] In some embodiments, see Figure 1At least two cross bars 11 are arranged between two adjacent vertical bars 10 of the protection unit 1. Exemplarily, three cross bars 11 are arranged between the two vertical bars 10. By arranging a plurality of cross bars 11, the protection performance of the temporary stair protection device can be improved.

[0041] The crossbar 11 and the vertical poles 10 can be fixedly connected by fasteners such as bolts. For example, the two ends of the crossbar 11 are movably connected to the two vertical poles 10, so that the crossbar 11 can be turned in the vertical plane. Figure 1 The cross bar 11 is connected to the vertical pole 10 through a rotating fastener 13, thereby not only realizing the connection between the cross bar 11 and the vertical pole 10, but also adjusting the angle between the cross bar 11 and the vertical pole 10 according to actual conditions to realize the height adjustment between two adjacent vertical poles 10.

[0042] In some embodiments, see Figure 1 , the cross bar 11 is a multi-section telescopic structure. Therefore, by adjusting the length of the cross bar 11, the length of the entire stair temporary protection device can be adjusted, which is used to temporarily protect stairs of different lengths, thereby improving the scope of application of the stair temporary protection device. The cross-sectional shape of the cross bar 11 can be rectangular or circular. Exemplarily, the cross bar 11 is a three-section telescopic structure. For example, the cross bar 11 is connected by rectangular tubes with diameters of 30mm, 40mm, and 50mm, and a limit block is set at the end of each section of the rectangular tube as a limit structure to prevent the two adjacent sections of the rectangular tube from detaching.

[0043] In some embodiments, see Figure 2 At least two notches 123 are evenly distributed on the annular fixing plate 122, and at least two blocks 101 are evenly distributed on the upright pole 10. The number of notches 123 and the number of blocks 101 are consistent and one-to-one corresponding. Exemplarily, the projections of the notches 123 and the blocks 101 on the horizontal plane are sectors of the same shape.

[0044] In some embodiments, see Figure 3 The guard unit 1 includes at least two vertical poles 10 arranged in parallel in sequence, and the vertical poles 10 of two adjacent guard units 1 are connected by a folding connector 2, so that the two adjacent guard units 1 can be folded and unfolded in a horizontal plane. For example, the vertical poles 10 of two adjacent guard units 1 are connected by two folding connectors 2, and the two folding connectors 2 are arranged at intervals up and down.

[0045] By providing a folding connector 2 between two adjacent protection units 1, not only can the angle between the two adjacent protection units 1 be adjusted according to the actual installation situation during temporary protection, but also the two adjacent protection units 1 can be folded together during storage to reduce the space occupied by them during storage. For example, see Figure 4The folding connector 2 includes a vertically arranged rotating shaft 21, two connecting pieces 22 rotatably connected to the rotating shaft 21, and the two connecting pieces 22 are respectively connected to the two upright poles 10. The connecting piece 22 can be fixedly connected to the upright pole 10 by welding or fasteners such as bolts.

[0046] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Based on the technical essence of the present application and within the spirit and principles of the present application, any simple modification, equivalent replacement and improvement of the above embodiments shall still fall within the protection scope of the technical solution of the present application.

Claims

1. A temporary stair protection device, characterized in that: The protective unit (1) comprises at least two vertically spaced vertical poles (10), a cross bar (11) arranged between two adjacent vertical poles (10), and an embedded part (12) arranged at the lower end of each vertical pole (10); The embedded part (12) comprises an embedded pipe (121) for vertically embedding in the concrete of the staircase, and an annular fixing plate (122) fixed to the upper opening of the embedded pipe (121); the lower end of the vertical rod (10) is used to pass through the inner hole of the annular fixing plate (122) and extend into the embedded pipe (121); The annular fixing plate (122) is provided with a notch (123) communicating with its inner hole, and the vertical rod (10) is provided with a clamping block (101) for passing through the notch (123) and clamping under the annular fixing plate (122) after the vertical rod (10) rotates.

2. The temporary stair protection device according to claim 1 is characterized in that: At least two cross bars (11) are arranged between two adjacent vertical bars (10) of the protection unit (1).

3. The temporary stair protection device according to claim 2, characterized in that: The two ends of the cross bar (11) are movably connected to the two vertical bars (10) respectively, so that the cross bar (11) can be turned over in a vertical plane.

4. The temporary stair protection device according to claim 3 is characterized in that: The crossbar (11) is connected to the vertical bar (10) via a rotating fastener (13).

5. The temporary stair protection device according to claim 1, 2, 3 or 4, characterized in that: The cross bar (11) is a multi-section telescopic structure.

6. The temporary stair protection device according to claim 5, characterized in that: The cross-section of the cross bar (11) is rectangular.

7. The temporary stair protection device according to claim 1, characterized in that: At least two notches (123) are evenly distributed on the circumference of the annular fixing plate (122), and at least two clamping blocks (101) are evenly distributed on the circumference of the upright pole (10), and the number of the notches (123) and the number of the clamping blocks (101) are consistent and correspond one to one.

8. The temporary stair protection device according to claim 7, characterized in that: The projections of the notch (123) and the block (101) on the horizontal plane are sectors with the same shape.

9. The temporary stair protection device according to claim 1, characterized in that: The protection unit (1) comprises at least two protection units (1) arranged in parallel in sequence, and the vertical poles (10) of two adjacent protection units (1) are connected via a folding connection piece (2) so that the two adjacent protection units (1) can be folded and unfolded in a horizontal plane.

10. The temporary stair protection device according to claim 9, characterized in that: The folding connecting member (2) comprises a vertically arranged rotating shaft (21) and two connecting pieces (22) rotatably connected to the rotating shaft (21), and the two connecting pieces (22) are respectively connected to the two vertical poles (10).

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