Steel structure stair protective barrier

Abstract

The utility model relates to the technical field of stair guardrails, and discloses a steel structure stair guardrail which comprises a square pipe and a connecting pipe, a rotating shaft is rotatably connected to the interior of the square pipe, a sleeve is fixedly connected to the front face of the rotating shaft, first positioning holes are formed in the two ends of the sleeve, and two telescopic rods are slidably connected to the interior of the connecting pipe; a second positioning hole is formed in the end, away from the connecting pipe, of each telescopic rod. According to the steel structure stair protection handrail, the rotating shaft rotationally connected with the square pipe is arranged on the back face of the sleeve, the installation angle of the sleeve can be flexibly adjusted according to actual needs, handrail installation is facilitated, the telescopic rod is driven to move by rotating the threaded pipe, the length of the telescopic rod is conveniently adjusted, manpower is saved, and the practicability is high. The guardrail installation operation efficiency is improved, the overall flexibility and practicability of the guardrail are also improved, and the problems that an existing guardrail is prone to being affected by the installation angle during installation, and the length adjustment is strenuous are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stair guardrails, in particular to a steel structure stair guardrail. BACKGROUND

[0002] The stair guardrail is a kind of protective device commonly used on the stair of a multi-storey building, which mainly serves to ensure safety when going up and down the stair.

[0003] The existing patent (publication number: CN204609341U) discloses a kind of stair temporary guardrails. The stair temporary guardrails include square section vertical rod and circular section connecting rod, suspending fixing piece is sleeved on the connecting rod, the suspending fixing piece is connected with the vertical rod by bolt connection;Bottom plate for fixing guardrail is welded on the side of the vertical rod close to the bottom end;The connecting rod is connected by mutually sleeved, telescopic steel pipe.

[0004] The suspending fixing piece of the above-mentioned guardrail is fixedly connected with the connecting piece and the vertical rod by bolt, which causes the angle of the annular sleeve on the suspending fixing piece cannot be adjusted according to the need, which causes certain hindrance to the installation of the guardrail, and when the length of the connecting rod needs to be adjusted, a plurality of locking screws need to be adjusted in sequence, which is relatively laborious to operate. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the present application provides a kind of steel structure stair guardrail, with the advantages of being convenient to adjust the angle of connecting sleeve according to actual installation angle, facilitating the installation of guardrail, and also convenient to adjust the length of connecting pipe, improving the practicability of guardrail, etc.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a kind of steel structure stair guardrail, including square tube and connecting pipe, the inside of the square tube is rotatably connected with shaft, the front surface of the shaft is fixedly connected with sleeve, the both ends of the sleeve are provided with first positioning hole, the inside of the connecting pipe is slidably connected with two telescopic rods, the both ends of the connecting pipe are rotatably sleeved with threaded pipe, the inner wall of the threaded pipe is threadedly connected with the outer circumferential surface of the telescopic rod.

[0007] Through the above scheme, since the existing guardrails are easily affected by the installation angle during installation and are laborious during length adjustment, the installation angle of the sleeve pipe can be flexibly adjusted according to actual needs by arranging the rotating shaft rotatably connected with the square pipe at the back of the sleeve pipe, the installation of the guardrail is facilitated, the length of the telescopic rod is adjusted by rotating the threaded pipe to drive the telescopic rod to move, manpower is saved, the installation efficiency of the guardrail is improved, and the flexibility and practicality of the whole guardrail are improved.

[0008] Further, the outer circumferential surface of the rotating shaft is fixedly sleeved with two limiting rings, and the two limiting rings are located inside and outside the square pipe, respectively.

[0009] Through the above scheme, the rotating shaft is limited to avoid sliding off, the stability of the rotating shaft movement is improved, and the stability of the sleeve pipe and the whole guardrail is improved.

[0010] Further, the inside of the first positioning hole is slidably inserted with a bolt, the outer circumferential surface of the bolt is slidably inserted with the one end of the telescopic rod through the second positioning hole, and the outer circumferential surface of the bolt is threadedly connected with a nut.

[0011] Through the above scheme, the sleeve pipe and the telescopic rod are connected and fixed by the bolt, the butt joint of the sleeve pipe and the telescopic rod is facilitated, the bolt is limited by the nut to avoid easily falling off from the inside of the first positioning hole and the second positioning hole, and the stability of the connection between the sleeve pipe and the telescopic rod is improved.

[0012] Further, the outer circumferential surface of the telescopic rod is fixedly connected with a limiting plate, the inner wall of the connecting pipe is provided with a first limiting groove, and the outer surface of the limiting plate is slidably connected with the connecting pipe through the first limiting groove.

[0013] Through the above scheme, the telescopic rod is limited to avoid rotating with the threaded pipe, the telescopic rod always moves horizontally, and the first positioning hole and the second positioning hole cannot be corresponded to fail to complete the butt joint fixing operation of the sleeve pipe and the telescopic rod.

[0014] Further, the inner wall of the threaded pipe is fixedly connected with a limiting protrusion, both ends of the connecting pipe are provided with a second limiting groove, and the limiting protrusion is rotatably connected with the connecting pipe through the second limiting groove.

[0015] Through the above scheme, the threaded pipe is limited to avoid easily falling off from the connecting pipe, and the stability of the threaded pipe movement is improved.

[0016] Further, the outer circumferential surface of the connecting pipe is fixedly sleeved with a first soft pad.

[0017] Through the above scheme, the first soft pad layer makes the user feel more comfortable when contacting the connecting pipe, reducing the cold and uncomfortable feeling of metal materials.

[0018] Further, the outer surface of the square tube is sleeved with a second soft pad layer.

[0019] Through the above scheme, the second soft pad layer can provide additional protection when accidentally colliding, reducing the possibility of user injury.

[0020] Further, the bottom of the square tube is fixedly connected with a mounting plate, and the mounting plate is internally provided with a mounting hole.

[0021] Through the above scheme, the square tube and the stairs can be fixedly connected through the mounting hole on the mounting plate, facilitating the installation and disassembly of the square tube.

[0022] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0023] The steel structure stair guardrail, by setting the rotating shaft rotatably connected with the square tube on the back of the sleeve pipe, can flexibly adjust the installation angle of the sleeve pipe according to actual needs, facilitate the installation of the guardrail, and move the telescopic rod by rotating the threaded pipe, facilitate the adjustment of the length of the telescopic rod, save manpower, improve the efficiency of the guardrail installation operation, also improve the flexibility and practicality of the guardrail as a whole, solve the problem that the existing guardrail is easily affected by the installation angle during installation, and is relatively laborious during length adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall three-dimensional structure diagram of the present application;

[0025] Figure 2 is the rotating shaft structure diagram of the present application;

[0026] Figure 3 is the sleeve pipe structure diagram of the present application;

[0027] Figure 4 is the connecting pipe structure diagram of the present application.

[0028] In the drawings:

[0029] 1, square tube; 2, rotating shaft; 3, sleeve pipe; 4, first positioning hole; 5, connecting pipe; 6, telescopic rod; 7, second positioning hole; 8, threaded pipe; 9, limiting ring; 10, bolt; 11, nut; 12, limiting plate; 13, first limiting groove; 14, limiting protrusion; 15, second limiting groove; 16, first soft pad layer; 17, second soft pad layer; 18, mounting plate. DETAILED DESCRIPTION

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , a steel structure stair guardrail in the embodiment comprises a square tube 1 and a connecting tube 5, the square tube 1 is rotatably connected with a rotating shaft 2 inside, the front surface of the rotating shaft 2 is fixedly connected with a sleeve 3, the two ends of the sleeve 3 are both provided with first positioning holes 4, the inside of the connecting tube 5 is slidably connected with two telescopic rods 6, the end of each telescopic rod 6 away from the connecting tube 5 is provided with a second positioning hole 7, the two ends of the connecting tube 5 are both rotatably sleeved with threaded tubes 8, and the inner wall of the threaded tube 8 is threadedly connected with the outer circumferential surface of the telescopic rod 6.

[0032] Please refer to Figure 2 , the outer circumferential surface of the rotating shaft 2 is fixedly sleeved with two limiting rings 9, the two limiting rings 9 are respectively located inside and outside the square tube 1, the rotating shaft 2 is limited, the rotating shaft 2 is prevented from sliding off, the stability of the movement of the rotating shaft 2 is improved, and then the stability of the sleeve 3 and the whole guardrail is improved.

[0033] Please refer to Figure 2 and Figure 3 , the inside of the first positioning hole 4 is slidably inserted with a bolt 10, the outer circumferential surface of the bolt 10 is slidably inserted with one end of the telescopic rod 6 through the second positioning hole 7, the outer circumferential surface of the bolt 10 is threadedly connected with a nut 11, the sleeve 3 and the telescopic rod 6 are connected and fixed through the bolt 10, the butt joint of the sleeve 3 and the telescopic rod 6 is facilitated, the bolt 10 is limited through the nut 11, the bolt 10 is prevented from easily falling off from the inside of the first positioning hole 4 and the second positioning hole 7, and the stability of the connection between the sleeve 3 and the telescopic rod 6 is improved.

[0034] Please refer to Figure 4 , the outer circumferential surface of the telescopic rod 6 is fixedly connected with a limiting plate 12, the inner wall of the connecting tube 5 is provided with a first limiting groove 13, and the outer surface of the limiting plate 12 is slidably connected with the connecting tube 5 through the first limiting groove 13. The telescopic rod 6 is limited, the telescopic rod 6 is prevented from rotating with the threaded tube 8, the telescopic rod 6 is always moved horizontally, the first positioning hole 4 and the second positioning hole 7 cannot be corresponded, and the butt joint fixing operation of the sleeve 3 and the telescopic rod 6 cannot be completed.

[0035] Please refer to Figure 4The inner wall of the threaded pipe 8 is fixedly connected with a limiting protrusion 14, and the two ends of the connecting pipe 5 are provided with second limiting grooves 15, and the limiting protrusion 14 is rotatably connected with the connecting pipe 5 through the second limiting grooves 15, so as to limit the threaded pipe 8 and avoid the threaded pipe 8 from being easily separated from the connecting pipe 5, thereby improving the stability of the movement of the threaded pipe 8.

[0036] Please refer to Figure 1 and Figure 4 The outer circumferential surface of the connecting pipe 5 is fixedly sleeved with a first soft pad layer 16, so that the user can feel more comfortable when contacting the connecting pipe 5, and the cold and uncomfortable feeling caused by the metal material is reduced.

[0037] Please refer to Figure 1 and Figure 2 The outer surface of the square tube 1 is fixedly sleeved with a second soft pad layer 17, which can provide additional protection in case of accidental collision and reduce the possibility of user injury.

[0038] Please refer to Figure 1 The bottom of the square tube 1 is fixedly connected with a mounting plate 18, and the mounting plate 18 is provided with a mounting hole, so that the square tube 1 can be fixedly connected with the stairs through the mounting hole of the mounting plate 18, and the installation and disassembly of the square tube 1 are facilitated.

[0039] The steel structure stair guardrail in the embodiment is rotatably connected with the square tube 1 through the rotating shaft 2 arranged on the back surface of the sleeve pipe 3, so that the installation angle of the sleeve pipe 3 can be flexibly adjusted according to actual needs, the installation of the guardrail is facilitated, the length of the telescopic rod 6 is adjusted by rotating the threaded pipe 8 to drive the telescopic rod 6 to move, the length of the telescopic rod 6 is adjusted, manpower is saved, the installation efficiency of the guardrail is improved, the flexibility and practicality of the whole guardrail are improved, and the problem that the existing guardrail is easily affected by the installation angle during installation and is laborious during length adjustment is solved.

[0040] It should be noted that the outer circumferential surface of the threaded pipe 8 is provided with equidistantly arranged anti-skid grooves, so as to facilitate the rotation operation of the threaded pipe 8, and then facilitate the telescopic adjustment of the telescopic rod 6.

[0041] The working principle of the above embodiment is as follows:

[0042] When the guardrail is installed, first, the square tube 1 is fixed on the stair sidewall at a proper position through the installation plate 18, then the connecting tube 5 is placed between the adjacent two square tubes 1, the threaded tubes 8 at both ends of the connecting tube 5 are respectively rotated, the threaded tubes 8 are rotated to drive the telescopic rods 6 to move, the telescopic length of the telescopic rods 6 is adjusted according to the interval of the adjacent two square tubes 1, so that the overall length of the telescopic rods 6 and the connecting tube 5 is adapted to the interval of the adjacent square tubes 1, then the telescopic rods 6 are respectively inserted into the adjacent sleeve tubes 3, the sleeve tubes 3 are rotationally connected with the square tubes 1 through the rotating shafts 2, so that the angle of the square tubes 1 can be adjusted according to the specific installation angle and is flexibly adapted to the specific installation angle, after the telescopic rods 6 are inserted into the sleeve tubes 3, the second positioning holes 7 on the telescopic rods 6 correspond to the first positioning holes 4 on the sleeve tubes 3, then the bolts 10 are inserted from the inside of the first positioning holes 4 and the second positioning holes 7, and the nuts 11 are used to position the bolts 10, so as to prevent the bolts 10 from easily falling off from the inside of the first positioning holes 4 and the second positioning holes 7, that is, the butt joint fixing of the telescopic rods 6 and the sleeve tubes 3 is completed, the butt joint fixing of the telescopic rods 6 and the sleeve tubes 3 is sequentially completed, the connecting tube 5 and the telescopic rods 6 are installed between the adjacent square tubes 1, and the installation work of the guardrail is completed.

[0043] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0044] While embodiments of the present application have been shown and described with reference to a few embodiments, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application which is defined by the appended claims and their equivalents.

Claims

1. A steel structure stair guardrail comprising a square tube (1) and a connecting tube (5), characterized in that: The inside of square tube (1) is rotatably connected with the rotating shaft (2), the front surface of rotating shaft (2) is fixedly connected with the sleeve pipe (3), both ends of sleeve pipe (3) are provided with first positioning hole (4), the inside of connecting pipe (5) is slidably connected with two telescopic rods (6), the end of each telescopic rod (6) away from connecting pipe (5) is provided with second positioning hole (7), both ends of connecting pipe (5) are rotatably sleeved with threaded pipe (8), the inner wall of threaded pipe (8) is threadedly connected with the outer circumferential surface of telescopic rod (6).

2. A steel structure stair guardrail according to claim 1, characterized in that: The outer circumferential surface of rotating shaft (2) is fixedly sleeved with two limiting rings (9), two limiting rings (9) are respectively located inside and outside square tube (1).

3. A steel structure stair guardrail according to claim 1, characterized in that: The inside of first positioning hole (4) is slidably inserted with bolt (10), the outer circumferential surface of bolt (10) is slidably inserted with one end of telescopic rod (6) through second positioning hole (7), the outer circumferential surface of bolt (10) is threadedly connected with nut (11).

4. A steel structure stair guardrail according to claim 1, characterized in that: The outer circumferential surface of telescopic rod (6) is fixedly connected with limiting plate (12), the inner wall of connecting pipe (5) is provided with first limiting groove (13), the outer surface of limiting plate (12) is slidably connected with connecting pipe (5) through first limiting groove (13).

5. A steel structure stair guardrail according to claim 1, characterized in that: The inner wall of threaded pipe (8) is fixedly connected with limiting protrusion (14), both ends of connecting pipe (5) are provided with second limiting groove (15), limiting protrusion (14) is rotatably connected with connecting pipe (5) through second limiting groove (15).

6. A steel structure stair guardrail according to claim 1, characterized in that: The outer circumferential surface of connecting pipe (5) is fixedly sleeved with first soft pad (16).

7. A steel structure stair guardrail according to claim 1, characterized in that: The outer surface of square tube (1) is fixedly sleeved with second soft pad (17).

8. A steel structure stair guardrail according to claim 1, characterized in that: The bottom of square tube (1) is fixedly connected with mounting plate (18), the inside of mounting plate (18) is provided with mounting hole. The bottom of square tube (1) is fixedly connected with mounting plate (18), the inside of mounting plate (18) is provided with mounting hole.

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