Temporary stair handrail support

Abstract

The utility model discloses a temporary stair handrail support, and relates to the technical field of building construction temporary stair handrail supports, the technical scheme is that the temporary stair handrail support comprises a stand column square tube, a U-shaped fixing piece, a round tube and a spiral extrusion mechanism, the U-shaped fixing piece is arranged at the upper end of the stand column square tube and used for fixing the round tube, and a bottom clamping piece is arranged at the lower end of the stand column square tube; the spiral extrusion mechanism is composed of a handle, a threaded rod, a U-shaped connecting plate, an upper nut, a lower nut, a lower sleeve and upper clamping piece angle steel. The handrail support has the advantages of being simple in structure, firm in installation, convenient to install and detach, capable of being used repeatedly and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of temporary stair handrail brackets in building construction, in particular to a temporary stair handrail bracket. Background Art

[0002] In the prior art, stair handrails need to be removed during the stair surface laying stage to allow for renovation or maintenance work. The removed handrails need to be promptly restored to ensure safe use of the stairs. However, the current temporary steel pipe stair handrails constructed during civil engineering have the following problems:

[0003] Poor restorability: once dismantled, it is difficult to restore it to its original position quickly and accurately, affecting the use of the stairs;

[0004] Inconvenient installation: The existing temporary handrail installation process is complicated, requires the collaboration of multiple people, and takes a long time;

[0005] Unable to be dismantled as a whole: The existing handrail cannot be dismantled as a whole and needs to be dismantled and reassembled, which increases the workload;

[0006] Dismantled parts are not convenient for temporary storage: there is no suitable storage method for dismantled parts, which may lead to loss or damage;

[0007] Insufficient safety: The existing temporary handrail structure is not stable enough and poses a safety hazard.

[0008] How to solve the above problems is the research topic of this program. Utility Model Content

[0009] In order to achieve the above-mentioned purpose of the utility model and address the above-mentioned technical problems, the utility model provides a temporary stair handrail bracket.

[0010] The technical solution is as follows: it includes a column square tube, a U-shaped fixing piece, a round tube, and a spiral extrusion mechanism; the U-shaped fixing piece is provided at the upper end of the column square tube to fix the round tube; and a bottom clamp is provided at the lower end of the column square tube;

[0011] The spiral extrusion mechanism is composed of a handle, a threaded rod, a U-shaped connecting plate, upper and lower nuts, a lower sleeve, and an upper clamping angle steel;

[0012] The upper angle clamp is clipped onto the outer corner of the stair tread, while the lower clamp grips the slanted underside of the stair tread from below. Through spiral extrusion, the square tube of the column is secured. The combination of the square tube of the column, U-shaped fixture, round tube, and spiral extrusion mechanism creates a simple, secure temporary stair handrail bracket, facilitating quick installation and removal.

[0013] A circular hole is provided in the upper center of the column square tube to facilitate the installation of a U-shaped fixing. The ends of the U-shaped fixing match the circular hole. The lower center portion is connected to the screw extrusion mechanism via a U-shaped connecting plate, and the lower end is welded to the bottom clamp. The circular hole provided in the upper center portion of the column square tube facilitates the installation of the U-shaped fixing, improving installation efficiency.

[0014] The circular tube is arranged perpendicular to the column square tube, thereby enhancing the stability of the bracket.

[0015] The U-shaped connecting plate includes an arc portion and two side plates. The ends of the two side plates are fixedly connected to the side walls of the column square tube. The upper and lower ends of the arc portion are welded and fixed with upper and lower nuts. The handle is welded to the upper end of the threaded rod. The lower end of the threaded rod is threadedly connected to the lower sleeve. The lower sleeve is welded and fixed to the male angle of the upper clamp angle steel. In this way, by turning the handle, the threaded rod can drive the upper clamp angle steel to move up and down. The upper clamp angle steel is clamped to the male corner of the stair step plate, and the bottom clamp clamps the inclined bottom surface of the stair step plate from the bottom. The column square tube is fixed by spiral extrusion, and then the round tube is fixed by the U-shaped fixing piece to realize the production of a temporary handrail. The design of the U-shaped connecting plate makes the connection between the spiral extrusion mechanism and the column square tube more stable, thereby improving the reliability of the bracket.

[0016] A limiting circular plate is provided at the lower end of the threaded rod, and a sliding groove is provided within the lower casing. The limiting circular plate slides in alignment with the sliding groove, allowing the limiting circular plate to move within the lower casing while the threaded rod is clamped by the lower casing. The design of the limiting circular plate and sliding groove allows the threaded rod to move freely within the lower casing while ensuring its stability.

[0017] The diameter of the limiting circular plate is greater than the diameter of the threaded rod, which further enhances the stability of the threaded rod.

[0018] The square tubes of the columns are made of square steel tubes, and the round tubes are made of round steel tubes, which are convenient to obtain and save costs.

[0019] The bottom clamp is fixedly arranged at the bottom of the column square tube, and the bottom clamp comprises two round rods arranged closely together. The design of the bottom clamp enables the bracket to be firmly fixed on the stairs, thereby improving safety.

[0020] This solution utilizes a screw clamp to clamp the stair tread's outer corner and the slanted underside. A handle and threaded rod form a T-shaped twist-and-clamp mechanism, securing the handrail bracket securely to the stair tread. This facilitates the temporary installation of stair handrails without drilling holes.

[0021] The technical solution provided by the embodiment of the utility model has the following beneficial effects: the solution provides a temporary stair handrail bracket with a simple structure, firm installation, easy installation and disassembly, reusability, and low production cost, which facilitates the removal and restoration of the existing stair handrail during the stair floor decoration stage, ensures the safety and convenience of construction, and saves costs. The advantages are mainly reflected in the following aspects:

[0022] Simple structure: concise design, easy to understand and operate;

[0023] Firm installation: The design of the spiral extrusion mechanism and the bottom clamp ensures the stability of the bracket;

[0024] Easy to install and dismantle: The design of U-shaped fixing parts and spiral extrusion mechanism makes the bracket easy to install and dismantle;

[0025] Reusable: Durable materials and design allow for multiple reuse, reducing long-term costs;

[0026] Low production cost: using common steel pipe materials, which are easy to obtain and reduce production costs;

[0027] High safety: Through the stable structural design, the safety of the stair handrail is improved and the potential safety hazards during use are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model matching with stairs.

[0029] Figure 2 The overall structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0030] Figure 3 The overall structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0031] Figure 4 It is a schematic diagram of the local structure of an embodiment of the present utility model.

[0032] Figure 5 This is a schematic structural diagram of a threaded rod according to an embodiment of the present utility model.

[0033] Among them, the figures are marked as: 1. Square tube of column; 2. U-shaped fixing piece; 3. Round tube; 4. Bottom clamp; 11. Handle; 12. Threaded rod; 13. U-shaped connecting plate; 14. Upper and lower nuts; 15. Lower sleeve; 16. Upper clamp angle steel; 100. Stairs; 17. Limiting circular plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. A person skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0038] Example 1

[0039] See also Figures 1 to 5 The utility model provides a temporary stair handrail bracket, including a column square tube 1, a U-shaped fixing piece 2, a round tube 3, and a spiral extrusion mechanism. The upper end of the column square tube 1 is provided with a U-shaped fixing piece 2, the U-shaped fixing piece 2 is used to fix the round tube 3, and the lower end of the column square tube 1 is provided with a bottom clamp 4;

[0040] The screw extrusion mechanism consists of a handle 11, a threaded rod 12, a U-shaped connecting plate 13, upper and lower nuts 14, a lower sleeve 15, and an upper clamping angle steel 16;

[0041] The upper clamping angle steel 16 is clamped to the outer corner of the step of the stair 100 flight board, and the bottom clamping piece 4 is clamped to the inclined bottom surface of the stair 100 flight board from the bottom, and the column square tube 1 is fixed by spiral extrusion. The combination of the column square tube, U-shaped fixing piece, round tube and spiral extrusion mechanism realizes a simple structure and secure installation of the temporary stair handrail bracket, which facilitates the quick installation and removal of the stair handrail.

[0042] A circular hole is provided in the upper center of the column square tube 1 to facilitate the installation of the U-shaped fixing. The ends of the U-shaped fixing 2 match the circular hole. The lower center is connected to the screw extrusion mechanism through a U-shaped connecting plate 13. The lower end is welded to the bottom clamp 4. The circular hole is provided in the upper center of the column square tube to facilitate the installation of the U-shaped fixing and improve installation efficiency.

[0043] The round tube 3 is arranged perpendicular to the column square tube 1, thereby enhancing the stability of the bracket.

[0044] The U-shaped connecting plate 13 includes an arc portion and two side plates. The ends of the two side plates are fixedly connected to the side walls of the column square tube 1. The upper and lower ends of the arc portion are welded and fixed with upper and lower nuts 14. The handle 11 is welded to the upper end of the threaded rod 12. The lower end of the threaded rod 12 is threadedly connected to the lower sleeve 15. The lower sleeve 15 is welded and fixed to the outer corner of the upper clamping angle steel 16. In this way, by turning the handle 11, the threaded rod 12 can drive the upper clamping angle steel 16 to move up and down. The upper clamping angle steel 16 is clamped to the outer corner of the step of the stair 100 step plate. The bottom clamp 4 clamps the inclined bottom surface of the stair 100 step plate from the bottom. Through spiral extrusion, the column square tube 1 is fixed. Then, the round tube 3 is fixed by the U-shaped fixing member 2 to realize the production of a temporary handrail. The design of the U-shaped connecting plate makes the connection between the spiral extrusion mechanism and the column square tube more stable, thereby improving the reliability of the bracket.

[0045] A limiting circular plate 17 is provided at the lower end of the threaded rod 12, and a chute is provided inside the lower casing 15. The limiting circular plate 17 slidably matches the chute, allowing the limiting circular plate 17 to move within the lower casing 15, while the threaded rod 12 is clamped by the lower casing 15. The design of the limiting circular plate and chute allows the threaded rod to move freely within the lower casing while ensuring its stability.

[0046] The diameter of the limiting circular plate 17 is greater than the diameter of the threaded rod 12, which further enhances the stability of the threaded rod.

[0047] The column square tube 1 is made of square steel tube, and the round tube 3 is made of round steel tube, which is convenient to obtain materials and saves costs.

[0048] The bottom clamp 4 is fixedly arranged on the bottom of the column square tube 1. The bottom clamp 4 includes two round rods arranged closely together. The design of the bottom clamp allows the bracket to be firmly fixed on the stairs, thereby improving safety.

[0049] When the utility model is used, by rotating the handle 11, the threaded rod 12 drives the upper clamping angle steel 16 to move up and down, and the upper clamping angle steel 16 is clamped to the positive corner of the step of the stair 100 step plate, and the bottom clamping piece 4 clamps the inclined bottom surface of the stair 100 step plate from the bottom. Through spiral extrusion, the fixation of the column square tube 1 is achieved, and then the round tube 3 is fixed by the U-shaped fixing piece 2 to realize the production of a temporary handrail.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temporary stair handrail bracket, characterized in that: It comprises a column square tube (1), a U-shaped fixing piece (2), a round tube (3), and a spiral extrusion mechanism, wherein the U-shaped fixing piece (2) is provided at the upper end of the column square tube (1), the U-shaped fixing piece (2) is used to fix the round tube (3), and a bottom clamping piece (4) is provided at the lower end of the column square tube (1); The spiral extrusion mechanism is composed of a handle (11), a threaded rod (12), a U-shaped connecting plate (13), upper and lower nuts (14), a lower sleeve (15), and an upper clamping angle steel (16); The upper clamping piece angle steel (16) is clamped to the outer corner of the step of the staircase (100), and the bottom clamping piece (4) clamps the inclined bottom surface of the staircase (100) from the bottom, and the column square tube (1) is fixed by spiral extrusion.

2. The temporary stair handrail support according to claim 1, characterized in that: A circular hole is provided in the middle and upper portion of the column square tube (1), and both ends of the U-shaped fixing piece (2) match the circular hole. The middle and lower portion is connected to the spiral extrusion mechanism via a U-shaped connecting plate (13), and the bottom clamp (4) is welded to the lower end.

3. The temporary stair handrail support according to claim 2, characterized in that: The circular tube (3) is arranged perpendicular to the column square tube (1).

4. The temporary stair handrail support according to claim 2, characterized in that: The U-shaped connecting plate (13) comprises an arc portion and two side plates, the ends of the two side plates are fixedly connected to the side walls of the column square tube (1), the upper and lower ends of the arc portion are welded and fixed to the upper and lower nuts (14), the handle (11) is welded to the upper end of the threaded rod (12), the lower end of the threaded rod (12) is threadedly connected to the lower sleeve (15), and the lower sleeve (15) is welded and fixed to the male angle of the upper clamping angle steel (16).

5. The temporary stair handrail support according to claim 4, characterized in that: A limiting circular plate (17) is provided at the lower end of the threaded rod (12), and a sliding groove is provided inside the lower sleeve (15). The limiting circular plate (17) is slidably matched with the sliding groove, so that the limiting circular plate (17) can move in the lower sleeve (15), and the threaded rod (12) is clamped by the lower sleeve (15).

6. The temporary stair handrail support according to claim 5, characterized in that: The diameter of the limiting circular plate (17) is greater than the diameter of the threaded rod (12).

7. The temporary stair handrail support according to claim 1, characterized in that: The column square tube (1) is made of a square steel tube, and the round tube (3) is made of a round steel tube.

8. The temporary stair handrail support according to claim 1, characterized in that: One end of the bottom clamp (4) is fixedly arranged on the bottom of the column square tube (1), and the bottom clamp (4) comprises two closely arranged round rods.

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