Anti-rockfall device for vertical shaft construction

Abstract

The utility model relates to the technical field of vertical shaft construction, in particular to a rockfall prevention device for vertical shaft construction, which comprises a hanging bracket and a base arranged at the lower end of the hanging bracket, winding rollers are symmetrically and rotatably connected to two ends of the hanging bracket, two guide rollers are rotatably connected between the two winding rollers, a hanging rope is wound on the winding rollers, and the hanging rope is fixedly connected with the base. The free end of the lifting rope penetrates through the guide roller and is fixed to the two ends of a fixing ring, and the fixing ring is connected with a bearing cylinder through a protective net. The utility model solves the problem that after falling broken stones fall on a protective net, the falling broken stones need to be cleaned by personnel above, so that the falling broken stones are inconvenient to clean by the personnel.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical shaft construction technical field, concretely is a kind of anti-rockfall device for vertical shaft construction. BACKGROUND

[0002] During subway construction, the soil layer needs to be excavated, and a vertical shaft is punched out for construction. After the vertical shaft is excavated, construction personnel enter the lower chamber for construction. Due to side wall falling, wellhead dropping and other reasons, there is a risk of high-altitude falling objects at the bottom of the vertical shaft, which greatly affects the safety of the lower chamber construction personnel and equipment.

[0003] The traditional protective device is generally a protective net installed on the side wall of the vertical shaft. However, the traditional protective net is generally fixedly arranged. After the falling rocks fall on the protective net, the personnel above need to come down to clean up, which is not convenient for the workers to clean up the falling rocks. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an anti-rockfall device for vertical shaft construction, which solves the problem of falling rocks falling on the protective net, which requires personnel above to come down to clean up, which is not convenient for workers to clean up the falling rocks.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an anti-rockfall device for vertical shaft construction, comprising a hanger and a base mounted at the lower end of the hanger, two ends of the hanger are symmetrically connected with a winding roller, two guide rollers are rotatably connected between the two winding rollers, a lifting rope is wound on the winding roller, the free end of the lifting rope passes through the guide roller and is fixed to both ends of a fixed ring, and the fixed ring is connected with a bearing cylinder through a protective net.

[0006] With the above structure design, by setting the winding roller and the guide roller, the hanger can hoist the protective net and the bearing cylinder into the vertical shaft, the protective net can block the falling rocks and guide the rocks to fall into the bearing cylinder. When the bearing cylinder is full of rocks, the winding roller winds the lifting rope, and then pulls out the falling rocks from the vertical shaft, which is convenient for workers to clean up the rocks and improves the cleaning efficiency.

[0007] Preferably, a sliding groove is formed in the side wall of the hanger, and a rotating shaft is symmetrically and slidably connected in the sliding groove.

[0008] With the above scheme design, the two rotating shafts can slide in the sliding groove, and then the distance between the two guide rollers can be adjusted, and then different diameter fixed rings are connected to adapt to vertical shafts of different sizes. The rotating shafts are threadedly connected with positioning blocks at both ends, and the rotating shafts are fixed in position by the positioning blocks abutting against the side wall of the hanger.

[0009] Preferably, the lower end of the bearing cylinder is symmetrically connected with opening-closing plates, the two opening-closing plates can completely cover the bottom of the bearing cylinder, and electric push rods are symmetrically connected with the side wall of the bearing cylinder, and the output end of the electric push rod is connected with the opening-closing plate.

[0010] With the above scheme, when the bearing cylinder is placed into the shaft, the two opening-closing plates are closed to seal the lower end of the bearing cylinder to contain the gravel, and when the bearing cylinder is lifted out of the shaft, the opening-closing plates are pulled by the electric push rod, so that the gravel can fall out of the bottom of the bearing cylinder, facilitating the cleaning of the gravel in the bearing cylinder.

[0011] Preferably, a receiving groove is formed in the lower end of the base, a hydraulic cylinder is installed in the receiving groove, and the output end of the hydraulic cylinder faces downward and is provided with a moving wheel.

[0012] With the above structure, the moving wheel can be set to facilitate the movement of the device, and when the lifting frame is moved above the shaft, the moving wheel is collected into the base by the hydraulic cylinder, so that the lifting frame can be stably placed.

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

[0014] 1. By setting the winding roller and the guide roller, the lifting frame can lift the protective net and the bearing cylinder into the shaft, the protective net can block the falling gravel and guide the gravel to fall into the bearing cylinder. When the bearing cylinder is full of gravel, the winding roller winds the lifting rope, thereby pulling out the falling gravel from the shaft, facilitating the cleaning of the gravel by the staff and improving the cleaning efficiency.

[0015] 2. The two rotating shafts can slide in the sliding groove, thereby adjusting the distance between the two guide rollers, thereby connecting the fixed rings of different diameters to adapt to shafts of different sizes, and the rotating shafts are threadedly connected with the positioning blocks at both ends, and the rotating shafts are fixed by abutting against the side wall of the lifting frame through the positioning blocks. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the utility model;

[0017] Fig. 2 It is a partial structural schematic view of the utility model;

[0018] Fig. 3 It is a structural schematic view of the base of the utility model. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0020] Please refer to Figs. 1 to 3 The utility model provides a technical scheme: a kind of rockfall prevention device for shaft construction, including hanger 1 and the base 13 of installation in the lower end of the hanger 1, the hanger 1 is arch structure, the upper end of the hanger 1 is symmetrically connected with winding roller 2, two winding roller 2 are rotatably connected with two guide rollers 3, winding roller 2 is wound with rope 6, the free end of the rope 6 passes through the guide roller 3 and is fixed with the both ends of fixed ring 8, the fixed ring 8 is connected with bearing cylinder 10 by protective net 9.The one end of winding roller 2 passes through the hanger 1 and is equipped with driving motor 5, and driving motor 5 is arranged on the side wall of the hanger 1.

[0021] The side wall of the hanger 1 is provided with sliding groove 4, the sliding groove 4 is symmetrically connected with rotating shaft 7, the rotating shaft 7 is rotatably connected with the guide roller 3, and the both ends of the rotating shaft 7 are screw-connected with positioning block 16.

[0022] The lower end of the bearing cylinder 10 is rotatably connected with the opening and closing plate 11, and the two opening and closing plates 11 can completely cover the bearing cylinder 10, the side wall of the bearing cylinder 10 is rotatably connected with electric push rod 12, and the output end of the electric push rod 12 is rotatably connected with the opening and closing plate 11.

[0023] The lower end of the base 13 is provided with receiving groove, the receiving groove is installed with hydraulic cylinder 14, the output end of the hydraulic cylinder 14 is downward and is installed with moving wheel 15, and two moving wheels 15 are installed in one base 13.

[0024] Working principle: when in use, the worker pushes the hanger 1 to move above the shaft, and through the hydraulic cylinder 14, the moving wheel 15 is retracted into the base 13, so that the hanger 1 can be stably placed. According to the size of the shaft, the distance between the two guide rollers 3 is adjusted, and the position of the guide roller 3 is fixed through the positioning block 16, the fixed ring 8 and the protective net 9 are selected and connected with the bearing cylinder 10, and the lifting rope 6 is fixed at both ends of the fixed ring 8 through the lifting ring. Through the setting of the winding roller 2 and the guide roller 3, the hanger 1 can hoist the protective net 9 and the bearing cylinder 10 into the shaft, and the protective net 9 can block the falling debris and guide the debris to fall into the bearing cylinder 10. When the bearing cylinder 10 is filled with debris, the driving motor 5 is started, the winding roller 2 winds the lifting rope 6, and then the falling debris is pulled out of the shaft. When the bearing cylinder 10 is placed into the shaft, the two opening and closing plates 11 are closed, and the lower end of the bearing cylinder 10 is sealed to load the debris. When the bearing cylinder 10 is hoisted out of the shaft, the opening and closing plate 11 is pulled by the electric push rod 12, so that the debris can fall from the bottom of the bearing cylinder 10, and the debris in the bearing cylinder 10 is convenient to clean.

[0025] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A rockfall protection device for use in shaft construction, comprising a hanger (1) and a base (13) mounted at the lower end of the hanger (1), characterized in that: Both ends of the hanger (1) are symmetrically connected with winding rollers (2), two guide rollers (3) are rotatably connected between the two winding rollers (2), the winding roller (2) is wound with a hanging rope (6), the free end of the hanging rope (6) passes through the guide roller (3) and is fixed with both ends of the fixed ring (8), the fixed ring (8) is connected with the bearing cylinder (10) through the protective net (9).

2. A rockfall protection device for use in a shaft construction according to claim 1, characterized in that The side wall of the hanger (1) is provided with a sliding groove (4), the sliding groove (4) is symmetrically connected with a rotating shaft (7), the rotating shaft (7) is rotatably connected with the guide roller (3), and the both ends of the rotating shaft (7) are threadedly connected with a positioning block (16).

3. A rockfall protection device for use in a shaft construction according to claim 1 or 2, characterized in that The lower end of the bearing cylinder (10) is symmetrically rotatably connected with an opening and closing plate (11), the two opening and closing plates (11) can completely cover the bottom of the bearing cylinder (10), the side wall of the bearing cylinder (10) is symmetrically rotatably connected with an electric push rod (12), and the output end of the electric push rod (12) is rotatably connected with the opening and closing plate (11).

4. A rockfall protection device for use in a shaft construction according to claim 1, characterized in that The lower end of the base (13) is provided with a receiving groove, the receiving groove is provided with a hydraulic cylinder (14), and the output end of the hydraulic cylinder (14) is downwardly provided with a moving wheel (15).

Images