Height-adjustable handrail in limited operation space

Abstract

The utility model discloses a height-adjustable handrail in a limited operation space. The height-adjustable handrail comprises a channel steel stand column, a horizontal steel pipe, a double-hole bolt connecting device and an adjusting mechanism. The stand column is a protective structure formed by connecting upper and lower channel steel through a double-hole bolt and penetrating a horizontal steel pipe through a hole in the middle. Every 6 meters form a linkage, and the whole height is lifted by manually adjusting bolt hole positions. The problem that a traditional fixed guardrail needs to be cut frequently due to insufficient height in trestle mechanical operation is solved, labor and material waste is reduced, and construction safety and flexibility are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the trestle construction field, specifically come to relate to is a limited operation space height adjustable balustrade. BACKGROUND

[0002] In the trestle construction and subsequent mechanical operation scene, the traditional fixed guardrail exposes many drawbacks. The trestle is a temporary or semi-permanent structure facility, and various mechanical operations such as crawler crane rotation are often carried out thereon. However, once the height of the fixed guardrail is determined, it is difficult to change, and when the height required by the mechanical operation exceeds the safe height of the guardrail, the height will be insufficient. In the actual operation process, this height mismatch problem causes the construction personnel to have to cut the fixed guardrail frequently to meet the space requirements of the mechanical operation. Frequent cutting not only consumes a lot of manual time and effort, but also causes great waste of materials, greatly increasing the construction cost. More importantly, the operation of frequently cutting the guardrail destroys the original integrity and stability of the guardrail, reduces its protection ability to the construction personnel, and brings serious hidden dangers to construction safety. Therefore, it has important practical significance and engineering application value to develop a new type of balustrade device that can effectively solve the height insufficient problem of the traditional fixed guardrail in the trestle mechanical operation, while reducing the waste of labor and materials, improving the construction safety and flexibility. SUMMARY

[0003] Therefore, in order to solve the above problems, the utility model provides a limited operation space height adjustable balustrade, which solves the problem that the height of the mechanical operation (crawler crane rotation) on the trestle is lower than the safe height of the guardrail. Avoid cutting labor and material waste at any time.

[0004] The utility model is realized by constructing a limited operation space height adjustable balustrade, characterized by: the utility model comprises a channel steel stand and a horizontal steel pipe; the stand is connected by two channel steels through double-hole bolts, and the horizontal steel pipe is arranged in the channel steel to form a protection structure.

[0005] According to the limited operation space height adjustable balustrade, each 6 meters is a link to form a modular design, the overall height is adjusted through manual adjustment of the bolt hole position, transportation and installation are facilitated, and each 6 meter unit is connected through a flange to form a continuous guardrail.

[0006] According to the limited operation space height adjustable balustrade, the channel steel stand is composed of two channel steels, which are connected through double-hole bolts, and the bolt hole spacing is 10 cm, so that the height can be adjusted in stages.

[0007] The utility model discloses a limited operation space height adjustable railing, its characterized in that; the lower end of channel steel stand is provided with detachable base, and then is fixed on the trestle bridge floor through the expansion bolt, and the stability is enhanced.

[0008] The utility model discloses a limited operation space height adjustable railing, its characterized in that; channel steel adopts Q235B steel, and the wall thickness is equal to or more than 5mm;The diameter of horizontal steel pipe is 48mm, and the wall thickness is 3.5mm;The bolt strength grade is equal to or more than 8.8 level.

[0009] The utility model has the advantages that the utility model discloses an adjustable height edge protection railing, including channel steel stand, horizontal steel pipe, double -hole bolt connection device and adjusting mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the implementation structure diagram of the application.

[0011] Among them: channel steel stand 1, horizontal steel pipe 2. DETAILED DESCRIPTION

[0012] The utility model will be described below in conjunction with the attached Figure 1 The utility model is described in detail, and the technical scheme in the utility model embodiment is clearly and completely described.

[0013] The utility model provides a limited operation space height adjustable railing, as shown in the figure, Figure 1 It can be implemented in the following manner; its composition includes channel steel stand 1 and horizontal steel pipe 2;The stand 1 is connected by double -hole bolt by two sections of channel steel, and the horizontal steel pipe 2 is arranged in the middle hole of the channel steel and forms a protective structure.

[0014] During the implementation of the application, every 6 meters is a unit, forming a modular design, and the overall height is adjusted by manually adjusting the bolt hole position, which is convenient for transportation and installation.

[0015] During the implementation of the application, the channel steel stand is connected by double -hole bolt by two sections of channel steel, and the bolt hole spacing is 10cm, realizing the height grading adjustment.

[0016] In the implementation process of the application, the lower end of the channel steel stand 1 is provided with a detachable base, which is fixed to the trestle bridge deck through expansion bolts to enhance stability.

[0017] In the implementation process of the application, the channel steel is made of Q235B steel with a wall thickness of ≥5mm; the horizontal steel pipe has a diameter of 48mm and a wall thickness of 3.5mm; and the bolt strength grade is ≥8.8 grade.

[0018] The utility model discloses an adjustable height edge protection fence, including channel steel stand, horizontal steel pipe, double hole bolt connection device and adjusting mechanism. The stand is connected by two channel steels through double hole bolt, and the horizontal steel pipe is arranged in the middle hole to form a protection structure. Every 6 meters is a unit, and the overall height is adjusted by manually adjusting the bolt hole position. The device solves the problem of frequent cutting of the traditional fixed guardrail due to insufficient height in the trestle mechanical operation, reduces the waste of labor and materials, and improves the construction safety and flexibility.

[0019] Because the fixed guardrail needs to be frequently cut due to insufficient height. Therefore, the technical scheme of the application:

[0020] Channel steel stand: two channel steels are used, which are connected by double hole bolts, and the bolt hole spacing is 10cm, realizing height grading adjustment.

[0021] Horizontal steel pipe: arranged in the middle hole of the stand to form a protection main structure.

[0022] Modular design: every 6 meters is a unit, which is convenient for transportation and installation. Detachable base: fixed to the trestle bridge deck through expansion bolts to enhance stability.

[0023] The application has the advantages of adjustable height, suitable for different mechanical operation safety requirements, modular design, reducing cutting and material waste, stable structure, convenient installation and repeated use.

[0024] Specific implementation: the lower section of the channel steel stand is fixed to the trestle bridge deck through expansion bolts; the horizontal steel pipe is inserted into the middle hole position; the height of the upper section of the channel steel is adjusted according to the requirements, and fixed by double hole bolts; every 6 meters unit is connected by flange to form a continuous protection fence. Adjustment method: loosen the double hole bolts, adjust the upper section of the channel steel to the target height, and then lock it again. Material requirement: the channel steel is made of Q235B steel with a wall thickness of ≥5mm; the horizontal steel pipe has a diameter of 48mm and a wall thickness of 3.5mm; and the bolt strength grade is ≥8.8 grade.

[0025] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A height-adjustable railing for limited work space, characterized by; Its composition includes channel steel column (1) and horizontal steel pipe (2); the column (1) is connected by two-hole bolt by upper and lower two sections of channel steel, and the horizontal steel pipe (2) is arranged in the hole of the channel steel to form a protective structure.

2. The height adjustable railing of claim 1, wherein: Each 6 meters is a link, forming a modular design, and the overall height is adjusted by manually adjusting the bolt hole position, facilitating transportation and installation, and each 6-meter unit is connected by flange to form a continuous protective fence.

3. The height adjustable railing of claim 1, wherein: The channel steel column adopts two sections of channel steel, which are connected by two-hole bolt, and the bolt hole spacing is 10 cm, achieving height grading adjustment.

4. The height adjustable railing of claim 1, wherein: The lower end of the channel steel column (1) is provided with a detachable base, which is fixed to the trestle bridge deck by expansion bolts to enhance stability.

5. The height adjustable railing of claim 1, wherein: The channel steel is made of Q235B steel, and the wall thickness is greater than or equal to 5 mm; the diameter of the horizontal steel pipe is 48 mm, and the wall thickness is 3.5 mm; the bolt strength grade is greater than or equal to 8.8.

Images