Adjustable assembly type stair edge protection device

Abstract

The utility model relates to the technical field of stair edge protection, in particular to an adjustable assembly type stair edge protection device which is characterized in that a lifting screw is arranged in a positioning pipe, a threaded groove is formed in the end face of the lifting rod, a positioning frame is arranged at one end of the positioning screw, a supporting rod is arranged in the positioning frame, and a supporting plate is arranged on the surface of the supporting rod in a sleeved mode. A limiting rod is arranged at one end of the supporting plate; a protective fence is arranged on the surface of the supporting plate; the stair guardrail has the beneficial effects that firstly, the positioning pipes are fixed on the surface of a stair, then the positioning screw rods are screwed in the lifting rods, the other group of positioning pipes are also fixed on the stair, and the limiting rods are inserted into the end surfaces of the other group of guardrail, so that the two groups of guardrails can be spliced and fixed together; therefore, a protective effect can be achieved on a worker through splicing of the multiple sets of protective fences, the protective fences are spliced through the limiting rods and are also convenient to disassemble, and the protective fences can be taken down conveniently by separating the positioning screw rods from the lifting rods.

Description

Technical Field

[0001] The utility model relates to the technical field of staircase edge protection, in particular to an adjustable prefabricated staircase edge protection device. Background Technique

[0002] In recent years, with the continuous development of the economy, the construction scale of the construction industry has become larger and larger, which has well solved the housing needs of people during the urbanization process. However, in the process of development, it also faces relatively large problems of resource waste and environmental pollution. Therefore, construction techniques are constantly innovating, and a lot of exploration has been done in energy conservation and emission reduction. The prefabricated building construction technique has been widely used because of its high construction efficiency, good building quality, and less resource waste and environmental pollution problems brought. Among them, prefabricated components are also widely used at present. Among them, the safety risk problems faced during the construction of prefabricated staircases need to be solved urgently.

[0003] The existing staircase edge protection generally adopts protection methods such as steel bar welding and pipe erection. This method is only applicable for use after the installation of prefabricated staircases is completed, and there is still no effective protection measure during the hoisting of prefabricated staircases. Workers still face relatively large safety risks during construction. For this reason, the utility model proposes an adjustable prefabricated staircase edge protection device to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable prefabricated staircase edge protection device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an adjustable prefabricated staircase edge protection device, the adjustable prefabricated staircase edge protection device includes: a positioning pipe, a lifting rod is arranged in the positioning pipe, and a threaded groove is opened on the end face of the lifting rod;

[0006] A positioning screw, a positioning frame is arranged at one end of the positioning screw, a support rod is arranged in the positioning frame, a support plate is sleeved on the surface of the support rod, a limiting rod is arranged at one end of the support plate, a limiting groove is opened at the other end of the support plate, and a guardrail is arranged on the surface of the support plate.

[0007] Preferably, a bearing is arranged on the end face of the positioning pipe, a lifting nut is arranged on the surface of the bearing, and the lifting rod is screwed in the lifting nut.

[0008] Preferably, one end of the positioning screw can be screwed into the threaded groove, the positioning frame is fixedly connected to the end face of the positioning screw, and the positioning frame is integrally in a "C"-shaped plate structure.

[0009] Preferably, holes are formed in the side surface of the positioning frame, damping bearings are arranged in the holes, the support rod is fixedly connected to the inner ring surface of the damping bearing, threads are formed on the surface of one end of the support rod, positioning nuts are screwed on the threads, and an extrusion ring is arranged on the side surface of the positioning frame.

[0010] Preferably, the support plate is integrally in a square plate-like structure, and the guardrail is fixedly connected to the surface of the support plate.

[0011] Preferably, a storage groove is formed in the end surface of the support plate, a limiting spring is arranged in the storage groove, one end of the limiting spring is fixedly connected to the end surface of the storage groove, the other end of the limiting spring is fixedly connected to the end surface of the limiting rod, and the limiting rod can slide in the storage groove.

[0012] Preferably, a moving groove is formed in the side surface of the storage groove, a limiting block is arranged on the side surface of the limiting rod, the limiting block is inserted into the moving groove, and the limiting block can displace in the moving groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For an adjustable prefabricated edge protection device for stairs proposed by the present utility model, during use, first fix the positioning pipe on the surface of the stairs, then screw the positioning screw into the lifting rod, fix another group of positioning pipes on the stairs, and then insert the limiting rod into the end surface of the other group of guardrails, so that the two groups of guardrails can be spliced and fixed together. Thus, the splicing of multiple groups of guardrails can play a protective role for the staff. The splicing of the guardrails through the limiting rod is also convenient for disassembly. It is relatively convenient to remove the guardrail by separating the positioning screw from the lifting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a partial cross-sectional view of the positioning pipe of the structure of the present utility model;

[0017] Figure 3 is Figure 2 an enlarged schematic structural diagram at A in

[0018] Figure 4 is a partial cross-sectional view of the support plate of the structure of the present utility model;

[0019] Figure 5 is Figure 4 an enlarged schematic structural diagram at B in

[0020] Figure 6 is a schematic structural diagram of the lifting rod of the present utility model;

[0021] Figure 7 isFigure 6 Schematic diagram of the enlarged structure at position C in the [device name].

[0022] In the figure: 1, positioning tube; 2, lifting rod; 3, threaded groove; 4, positioning screw; 5, positioning frame; 6, support rod; 7, support plate; 8, limiting rod; 9, limiting groove; 10, guardrail; 11, bearing; 12, lifting nut; 13, damping bearing; 14, extrusion ring; 15, positioning nut; 16, storage groove; 17, limiting spring; 18, moving groove; 19, limiting block. Detailed implementation manners

[0023] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or 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 communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0027] Embodiment 1: Please refer to Figures 1 to 7 , the present utility model provides a technical solution: an adjustable prefabricated staircase edge protection device, the adjustable prefabricated staircase edge protection device includes: a positioning pipe 1, a lifting rod 2 is arranged inside the positioning pipe 1, and a threaded groove 3 is opened on the end face of the lifting rod 2;

[0028] a positioning screw 4, a positioning bracket 5 is arranged at one end of the positioning screw 4, a support rod 6 is arranged inside the positioning bracket 5, a support plate 7 is sleeved on the surface of the support rod 6, a limiting rod 8 is arranged at one end of the support plate 7, a limiting groove 9 is opened at the other end of the support plate 7, and a guardrail 10 is arranged on the surface of the support plate 7;

[0029] During use, first fix the positioning pipe 1 on the surface of the staircase, then screw the positioning screw 4 into the lifting rod 2, fix another group of positioning pipes 1 on the staircase as well, and then insert the limiting rod 8 into the end face of another group of guardrails 10, so that the two groups of guardrails 10 can be spliced and fixed together, thereby protecting the staff by splicing multiple groups of guardrails 10. The splicing of the guardrails 10 through the limiting rod 8 is also convenient for disassembly. The guardrail 10 can be removed conveniently by separating the positioning screw 4 from the lifting rod 2.

[0030] Embodiment 2: On the basis of Embodiment 1, a lifting rod 2 is provided to facilitate the adjustment of the height of the guardrail 10. A bearing 11 is arranged on the end face of the positioning pipe 1, a lifting nut 12 is arranged on the surface of the bearing 11, the lifting rod 2 is screwed into the lifting nut 12, one end of the positioning screw 4 can be screwed into the threaded groove 3, and the positioning bracket 5 is fixedly connected to the end face of the positioning screw 4. The positioning bracket 5 is integrally in the shape of a "C"-shaped plate structure;

[0031] During use, the lifting nut 12 can be rotated in cooperation with the bearing 11, so that the lifting rod 2 screwed into the lifting nut 12 can move up and down inside the positioning pipe 1. When it is displaced to the appropriate height, the positioning screw 4 can be screwed into the threaded groove 3, so as to facilitate the subsequent splicing and installation of the guardrail 10, and thus the height of the guardrail 10 can be adjusted for use.

[0032] Embodiment 3: On the basis of Embodiment 2, a limiting rod 8 is provided for facilitating the splicing of the guardrail 10. The support plate 7 is integrally in a square plate structure. The guardrail 10 is fixedly connected to the surface of the support plate 7. A receiving groove 16 is formed in the end face of the support plate 7. A limiting spring 17 is arranged in the receiving groove 16. One end of the limiting spring 17 is fixedly connected to the end face of the receiving groove 16, and the other end of the limiting spring 17 is fixedly connected to the end face of the limiting rod 8. The limiting rod 8 can slide in the receiving groove 16. A moving groove 18 is formed in the side of the receiving groove 16. A limiting block 19 is arranged on the side of the limiting rod 8. The limiting block 19 is inserted into the moving groove 18, and the limiting block 19 can be displaced in the moving groove 18.

[0033] During use, first, the limiting block 19 can be pulled backward to retract the limiting rod 8 into the receiving groove 16. After fixing another set of positioning pipes 1, the two guardrails 10 can be aligned, and then the limiting block 19 can be released to enable the limiting rod 8 to reset by the elastic force of the limiting spring 17. Thus, one end of the limiting rod 8 can be inserted into the limiting groove 9 to splice the two guardrails 10 together. The limiting block 19 cooperates with the moving groove 18 to also prevent the limiting rod 8 from disengaging from the receiving groove 16.

[0034] To facilitate the adjustment of the angle of the guardrail 10, a support rod 6 is provided. A hole is formed in the side of the positioning frame 5, and a damping bearing 13 is arranged in the hole. The support rod 6 is fixedly connected to the inner ring surface of the damping bearing 13. A thread is provided on the surface of one end of the support rod 6, and a positioning nut 15 is screwed on the thread. An extrusion ring 14 is arranged on the side of the positioning frame 5.

[0035] During use, when the angle of the guardrail 10 needs to be adjusted, first, the positioning nut 15 can be loosened, and then the support rod 6 can be rotated by using the damping bearing 13, so that the angle of the guardrail 10 can be adjusted. Then, the positioning nut 15 can be tightened to make the positioning nut 15 in close contact with the extrusion ring 14 to increase the friction force and cooperate with the damping bearing 13 to fix the angle of the guardrail 10.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable prefabricated stair edge protection device, characterized in that: The adjustable prefabricated edge protection device for stairs includes: a positioning pipe (1), in which a lifting rod (2) is arranged, and a threaded groove (3) is formed on the end face of the lifting rod (2); a positioning screw rod (4), one end of the positioning screw rod (4) is provided with a positioning frame (5), a support rod (6) is arranged in the positioning frame (5), a support plate (7) is sleeved on the surface of the support rod (6), one end of the support plate (7) is provided with a limiting rod (8), a limiting groove (9) is formed at the other end of the support plate (7), and a guardrail (10) is arranged on the surface of the support plate (7).

2. The adjustable prefabricated stair edge protection device according to claim 1, characterized in that: A bearing (11) is arranged on the end face of the positioning pipe (1), a lifting nut (12) is arranged on the surface of the bearing (11), and the lifting rod (2) is screwed in the lifting nut (12).

3. The adjustable prefabricated staircase edge protection device according to claim 1, characterized in that: One end of the positioning screw rod (4) can be screwed in the threaded groove (3), the positioning frame (5) is fixedly connected to the end face of the positioning screw rod (4), and the positioning frame (5) is integrally in an "L"-shaped plate structure.

4. The adjustable prefabricated staircase edge protection device according to claim 3, characterized in that: A hole is formed in the side face of the positioning frame (5), a damping bearing (13) is arranged in the hole, the support rod (6) is fixedly connected to the inner ring surface of the damping bearing (13), a thread is formed on the surface of one end of the support rod (6), a positioning nut (15) is screwed on the thread, and an extrusion ring (14) is arranged on the side face of the positioning frame (5).

5. The adjustable prefabricated staircase edge protection device according to claim 1, characterized in that: The support plate (7) is integrally in a square plate structure, and the guardrail (10) is fixedly connected to the surface of the support plate (7).

6. The adjustable prefabricated staircase edge protection device according to claim 1, characterized in that: A receiving groove (16) is formed in the end face of the support plate (7), a limiting spring (17) is arranged in the receiving groove (16), one end of the limiting spring (17) is fixedly connected to the end face of the receiving groove (16), the other end of the limiting spring (17) is fixedly connected to the end face of the limiting rod (8), and the limiting rod (8) can slide in the receiving groove (16).

7. An adjustable prefabricated stair edge protection device according to claim 6, characterized in that: A moving groove (18) is formed in the side face of the receiving groove (16), a limiting block (19) is arranged on the side face of the limiting rod (8), the limiting block (19) is inserted into the moving groove (18), and the limiting block (19) can be displaced in the moving groove (18).

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