Pedestrian handrail device between large-dip-angle fully-mechanized coal mining supports

Abstract

The invention discloses a large-dip-angle fully-mechanized mining support inter-support pedestrian handrail device which comprises two phi steel pipes with the length of 1.5 m and two phi steel pipes with the length of 8 cm, the steel pipes are welded to a support stand column, small steel bars with the length of 8 cm and the diameter of 18 mm are welded to the two ends of the 1.5 m steel pipes to be recycled and adjust the distance, a groove with the length of 15 cm and the width of 18 mm is cut in a handrail at one end, a capped steel bar is placed in the groove, and the capped steel bar is placed in the groove. During manual installation, the handrail is formed by being inserted into a steel pipe with the length of 8cm.

Description

Technical Field

[0001] The invention relates to a pedestrian handrail device between frames of a large-angle fully-mechanized mining support, and belongs to the field of safe pedestrians between frames of fully-mechanized mining supports in coal mines. Background Art

[0002] At present, there are either no pedestrian handrails or flat iron is used as a clamp on the support column to connect with the steel pipe as a pedestrian handrail, and the flat iron and the steel pipe are fixed with thread. Walking without handrails will cause people to hold the support column or the hydraulic pipe when walking, especially when walking between frames with large inclination angles, which may cause people to fall easily and cause safety hazards. The use of flat iron and steel pipes as handrails will firstly cause material waste, secondly, the columns are of different sizes and inconsistent spacings, which need to be reprocessed and cannot be reused, and thirdly, installation and disassembly are labor-intensive and time-consuming.

[0003] Literature search (1) Patent application number CN202221474476.5 discloses a pedestrian handrail for a high-angle excavation working face, including a base, a handrail body, a support rod, a connector, a groove, a fixing rod, a nut, a reinforcing rod, a connecting rod, a fixing block, a screw, a bolt, a nut, a guide rod, a slider, a hanging ring and a knob. The present application adopts a detachable handrail and a base, which can facilitate the installation of the handrail and achieve synchronization between the excavation process of the high-angle excavation face and the installation process of the handrail; the pedestrian handrail of the present application is easy to install and fix, and at the same time, a rotatable support rod is adopted to ensure that it is always vertical to the ground, and by strengthening and realizing the limit, the installation strength of the handrail can be ensured; the present application can be connected to the pedestrian's safety buckle through a hanging ring installed at the bottom of the handrail body, and the position of the hanging ring can be adjusted, which is suitable for pedestrians to carry out construction work on high-angle working faces at different positions, which is conducive to improving the practicality of the handrail. Summary of the invention

[0004] The purpose of the present invention is to provide a pedestrian handrail device between frames of a large-angle fully-mechanized mining support, which can eliminate potential safety hazards, avoid bumps and scratches on workers, and ensure the safety of walking between fully-mechanized mining (lowering) frames. The manufacturing process is simple, the installation is convenient, and the handrail can be reused, thus avoiding the waste of materials and manpower.

[0005] The implementation method of the present invention is as follows: a pedestrian handrail device between frames of a large-angle comprehensive mining support, including two φ steel pipes of 20mm, each 1.5m long, and two φ steel pipes of 20mm, 8cm long, which are welded to the support columns. Small steel bars of 8cm long and φ18mm are welded at both ends of the 1.5m long steel pipe. For reuse and adjustment of spacing, a groove of 15cm long and 18mm wide is cut at one end of the handrail, and capped steel bars are placed in the groove. During manual installation, they are inserted into the 8cm long steel pipe to form a handrail.

[0006] The present invention saves material waste and the device can be reused. Second, because one end of the handrail is movable, the problem of reprocessing due to different sizes and inconsistent spacing of columns is solved. Third, installation and disassembly are labor-saving and time-saving. The application of the device can be completed by only one worker during installation and disassembly, compared with the traditional handrail fixed with pipe clamps, steel pipes and nuts, which requires two people to cooperate, saving one labor. Since the device is easy to install and disassemble, a working surface can be completed in half a shift, compared with the traditional device that takes 3 days, saving a lot of work hours. It can be reused in comprehensive mining supports, improve work efficiency, eliminate safety hazards, reduce production costs, and ensure safe and efficient excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the handrail structure of the present invention; Figure 2 It is a schematic diagram of the column structure of the present invention; Figure 3 This is an assembly diagram of the present invention. Implementation

[0008] A pedestrian handrail device between frames of a large-angle fully mechanized mining support, such as Figure 1 , 2 As shown in Figure 3, the handrail 3 is composed of two φ steel pipes of 20mm and 1.5m long respectively. The two φ steel pipes of 20mm are 8cm long. The steel pipe 1 is welded to the bracket column 2. Small steel bars 4 and 5 with a length of 8cm and φ18mm are welded at both ends of the 1.5m long steel pipe. For reuse and adjustment of the spacing, a groove with a length of 15cm and a width of 18mm is cut at one end of the handrail 3. A small steel bar 4 with a cap is placed in the groove and inserted into the 8cm long steel pipe 1 to form the handrail 3 during manual installation.

[0009] Specific implementation: 1. A φ20mm steel pipe, 1.5m long. Two φ20mm steel pipes, 8cm long, and a φ18mm small steel bar, 8cm long.

[0010] 2. Ground processing: Cut a 15cm long and 18mm wide groove at one end of the 1.5m steel pipe, place a small steel bar 4 with a cap in the groove, and weld a small steel bar 5 at one end. Weld two 8cm long and φ20mm steel pipes to the hydraulic pipe mounting block 6 of the bracket column 2.

[0011] 3. Finally, the handrail 3 steel bars are inserted into the small steel pipe 1 underground to form the handrail.

Claims

1. A pedestrian handrail device between frames of a large-angle fully mechanized mining support, characterized in that It includes two φ steel pipes 20mm, 1.5m long respectively, and two φ steel pipes 20mm, 8cm long. The steel pipes are welded to the bracket columns. 8cm long and φ18mm small steel bars are welded at both ends of the 1.5m long steel pipe. For reuse and adjustment of spacing, a groove 15cm long and 18mm wide is cut at one end of the handrail, and capped steel bars are placed in the groove. During manual installation, they are inserted into the 8cm long steel pipe to form a handrail.

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