Detachable handrail

Abstract

The utility model discloses a detachable handrail which comprises a handrail body, an anchor plate located at the bottom end of the handrail body, a long nut, a short screw and a long screw, the long screw is in threaded connection with the long nut, the long screw and the long nut are anchored in a beam-slab structure, and the anchor plate is connected with the long nut through the short screw. Through cooperation of the long screws, the short screws and the long nuts, the problems that the pre-embedding precision cannot be guaranteed and the follow-up handrail installation difficulty is high can be solved through the punching installation technology after beam and slab structure pouring is completed, the small-diameter long screws are matched with the long nuts, installation work can be conveniently conducted on the beam and slab structure with dense steel bars, and the installation efficiency is improved. The lower end of the long screw is expanded, and the anchoring effect can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting platform railings, in particular to a detachable railing. Background Art

[0002] The top of the cantilevered platform beam generally needs to be protected by a railing. Currently, the main method of installing the railing is to use pre-buried anchors, and then install the railing on the anchors.

[0003] The existing application number is CN202210277274.X, which is a detachable guardrail, including several uprights and chains. The uprights include an upright body, an upper flange, a lower flange, and a ball. The upright body is a steel pipe, and a plurality of connecting rings are evenly spaced above and below the outer wall of the steel pipe. The top of the steel pipe is fixed with a ball, and the bottom of the steel pipe is fixed with an upper flange. The upper flange has four φ15mm bolt holes evenly distributed on the surface. The upper flange is provided with a movable lower flange, and the lower flange is embedded in the base of the upright at a predetermined position through the anchor bar at the bottom; the upper flange and the lower flange are movably connected by bolts; the chain is a φ8mm galvanized chain, one end of the chain is provided with a movable hook, and the other end is welded to the upright. When in use, the hook is inserted into the connecting ring. The detachable guardrail of the present invention has the advantages of a stable upright base, easy installation, firmness and reliability, easy disassembly, and greater stability due to the use of large-diameter hollow steel uprights. The chain connection is both beautiful and firm, and convenient to install and disassemble.

[0004] The design of the above-mentioned detachable handrails is to reserve anchors during the structural construction phase, and then connect the handrails to the anchors. When facing the construction of cantilever platform beams, due to the dense steel bars on the top of the cantilever platform beams, it is impossible to accurately pre-embed the anchors. Even if they are forcibly pre-embedded, the anchors will be disturbed during the concrete pouring process, causing them to deviate, affecting the subsequent installation of the handrails. Utility Model Content

[0005] The utility model provides a detachable handrail with simple structure, low cost and easy operation.

[0006] The technical problem to be solved is: due to the dense steel bars on the top of the cantilever platform beam, it is impossible to accurately pre-embed the anchors. Even if they are forcibly pre-embedded, the anchors will be disturbed during the concrete pouring process, causing them to deviate, affecting the subsequent installation of the railings.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The utility model discloses a detachable railing, comprising a railing, an anchor plate located at the bottom end of the railing, a long nut, a short screw and a long screw, wherein the long screw is threadedly connected to the long nut, and the long screw and the long nut are anchored in a beam-slab structure, and the anchor plate is connected to the long nut through the short screw.

[0009] The utility model provides a detachable handrail. Furthermore, a mounting hole is opened on the beam-plate structure, and the long screw and the long nut are anchored in the mounting hole by chemical agents.

[0010] The utility model provides a detachable handrail. Furthermore, the chemical agent is a chemical bolt agent.

[0011] The utility model provides a detachable railing. Furthermore, the anchor plate is fixed to the beam-plate structure by multiple groups of long nuts, short screws and long screws.

[0012] The utility model provides a detachable handrail. Furthermore, the installation height of the top surface of the long nut is flush with the top surface elevation of the beam-slab structure.

[0013] The utility model provides a detachable railing. Further, the railing comprises a plurality of vertical rods and transverse rods connected between the vertical rods. The transverse rods are arranged in a plurality of rows at intervals along the height direction of the vertical rods.

[0014] The utility model provides a detachable railing. Furthermore, a vertical rod located in the middle of the railing extends downward to the top surface of the beam-slab structure and is installed with an anchor plate.

[0015] The utility model provides a detachable railing. Furthermore, the long nut adopts a stainless steel nut with an inner diameter of Φ12mm and a length of 50mm, the short screw adopts a stainless steel screw with an inner diameter of Φ12mm and a length of 30mm, and the long screw adopts a stainless steel screw with an inner diameter of Φ12mm and a length of 70mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This application uses a combination of long screws, short screws, and long nuts. By drilling and installing the screws after the beam and slab structure is cast, it can avoid the problem of uncertainty in pre-embedded accuracy and the difficulty of subsequent railing installation.

[0018] 2. The small diameter long screws and long nuts are used together to facilitate installation on beam-slab structures with dense steel bars, and the enlarged lower end of the long screws can ensure the anchoring effect.

[0019] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation structure of the utility model;

[0021] Figure 2 This is a detailed diagram of the installation of the railing of this utility model.

[0022] Reference numerals:

[0023] 1. Railing; 1.1. Vertical rod; 1.2. Horizontal rod; 1.3. Anchor plate; 2. Long nut; 3. Short screw; 4. Long screw; 5. Beam-slab structure; 6. Enlarged head. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 2 As shown, the utility model discloses a detachable railing, including a railing 1, a long nut 2, a short screw 3 and a long screw 4, the long screw 4 is threadedly connected to the long nut 2, and the long screw 4 and the long nut 2 are anchored in the beam-slab structure 5, wherein the long screw 4 is installed at the lower part of the long nut 2, and an enlarged head 6 is formed at one end of the long screw 4 away from the long nut 2 to increase the anchoring ability of the long screw 4 and ensure the fixing effect; the top surface installation height of the long nut 2 is flush with the top surface elevation of the beam-slab structure 5.

[0025] Specifically, a mounting hole is opened on the beam-slab structure 5, and the long screw 4 and the long nut 2 are anchored in the mounting hole by a chemical agent, and the chemical agent is a chemical bolt agent.

[0026] The railing 1 includes multiple vertical rods 1.1 and transverse rods 1.2 connected between the vertical rods 1.1. The transverse rods 1.2 are arranged in multiple rows at intervals along the height direction of the vertical rods 1.1. The vertical rod 1.1 located in the middle of the railing 1 extends downward to the top surface of the beam-slab structure 5 and is fixedly installed with an anchor plate 1.3. The anchor plate 1.3 is provided with bolt holes for installing short screws 3. The short screws 3 pass through the anchor plate 1.3 and are threadedly engaged with the long nuts 2 to fix the railing 1 on the beam-slab structure 5.

[0027] The anchor plate 1.3 is fixed to the beam-plate structure 5 by multiple sets of long nuts 2, short screws 3 and long screws 4.

[0028] This application uses long nuts 2, short screws 3, long screws 4, chemicals, and anchor plates 1.3 to detachably install the railing 1 on the beam-slab structure 5. The long nuts 2 and long screws 4 are installed and fixed after the construction of the beam-slab structure 5 is completed, avoiding the problem that the anchors cannot be accurately pre-buried due to the dense steel bars on the top of the cantilever platform beam. Even if they are forcibly pre-buried, the anchors will be disturbed during the concrete pouring process, causing them to deviate, affecting the later installation of the railing 1.

[0029] In a specific embodiment of the present application, the long nut 2 is a stainless steel nut with an inner diameter of Φ12mm and a length of 50mm; the short screw 3 is a stainless steel screw with an inner diameter of Φ12mm and a length of 30mm, and the long screw 4 is a stainless steel screw with an inner diameter of Φ12mm and a length of 70mm.

[0030] The installation method is as follows:

[0031] Step 1: After the concrete pouring of the beam-slab structure 5 is completed and reaches the required strength, use an impact drill to drill holes in the beam-slab structure 5 according to the detailed design drawing of the railing 1. If there is any steel bar position in the beam-slab structure 5, the drilling position can be adjusted appropriately.

[0032] Step 2: Put the chemical into the hole, screw the long screw 4 onto the long nut 2 and put it into the hole.

[0033] Step 3: Drill holes in the anchor plate 1.3 of the railing 1 according to the actual drilling positions on site.

[0034] Step 4: After the chemical agent solidifies, use short screws 3 to fix the anchor plate 1.3 to the beam-slab structure 5.

[0035] The embodiments described above are merely descriptions of preferred implementation methods of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A detachable railing, characterized by: The invention comprises a railing (1), an anchor plate (1.3) located at the bottom end of the railing (1), a long nut (2), a short screw (3) and a long screw (4); the long screw (4) is threadedly connected to the long nut (2); the long screw (4) and the long nut (2) are anchored in a beam-slab structure (5); and the anchor plate (1.3) is connected to the long nut (2) via the short screw (3).

2. A detachable railing according to claim 1, characterized in that: The beam-plate structure (5) is provided with a mounting hole, and the long screw (4) and the long nut (2) are anchored in the mounting hole by chemical agents.

3. The detachable railing according to claim 2, characterized in that: The chemical agent is a chemical bolt agent.

4. The detachable railing according to claim 1, characterized in that: The anchor plate (1.3) is fixed to the beam-plate structure (5) via multiple groups of long nuts (2), short screws (3) and long screws (4).

5. The detachable railing according to claim 1, characterized in that: The installation height of the top surface of the long nut (2) is flush with the top surface elevation of the beam-slab structure (5).

6. The detachable railing according to claim 1, characterized in that: The railing (1) comprises a plurality of vertical rods (1.1) and transverse rods (1.2) connected between the vertical rods (1.1), wherein the transverse rods (1.2) are arranged in a plurality of rows at intervals along the height direction of the vertical rods (1.1).

7. The detachable railing according to claim 6, characterized in that: A vertical rod (1.1) located in the middle of the railing (1) extends downward to the top surface of the beam-slab structure (5) and is installed with an anchor plate (1.3).

8. The detachable railing according to claim 1, characterized in that: The long nut (2) is a stainless steel nut with an inner diameter of Φ12mm and a length of 50mm, the short screw (3) is a stainless steel screw with an inner diameter of Φ12mm and a length of 30mm, and the long screw (4) is a stainless steel screw with an inner diameter of Φ12mm and a length of 70mm.

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