Integral hoisting device for flexible steel shed tunnel

Abstract

The utility model relates to the technical field of road dangerous rockfall protection, and discloses an integral hoisting device of a flexible steel shed tunnel, which comprises a hoisting beam, the hoisting beam is I-shaped steel, the upper end of the hoisting beam is fixedly connected with a hoisting ring, the hoisting beam is provided with a bearing frame, the two ends of the bearing frame are rotatably connected with pulleys, and the pulleys are fixedly connected with the hoisting ring. The pulleys are located on the two sides of a web of the hoisting beam and make contact with a lower flange of the hoisting beam, a positioning assembly for limiting displacement of the bearing frame is installed on the bearing frame, and a clamping assembly for clamping I-shaped steel on a steel shed frame is installed at the lower end of the bearing frame. The problem that time and labor are wasted in the steel wire rope binding process is solved, meanwhile, deformation of the steel shed frame can be prevented, and the overall stability of the hoisted steel shed frame is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of protection against falling rocks and dangerous rocks on roads, in particular to an integral hoisting device for a flexible steel shed hole. Background Art

[0002] In recent years, with the vigorous development of my country's infrastructure and transportation construction, the number and mileage of railway tunnels have increased significantly. Especially in the mountainous areas in western my country, railway tunnels are becoming an important part of high-speed transportation in the west.

[0003] There are many tunnels in mountainous areas, and there are dangerous rockfalls at the entrances and exits of the tunnels. Setting up tunnel sheds is an effective measure to deal with geological disasters such as dangerous rockfalls on slopes. The tunnel shed protection system is mainly divided into traditional reinforced concrete tunnel shed systems and flexible steel tunnel shed systems. Among them, the flexible steel tunnel shed system is composed of three main parts: wire rope net or ring net (an additional layer of wire grid is added when small pieces of falling rocks need to be intercepted), connection system (shackles, energy absorbers and support ropes, etc.), and support system (steel arches, etc.). They are connected and combined to form a whole, forming an isolation protection for the protected area.

[0004] At present, the traditional installation method of steel shed tunnels is to install them by hoisting them through a crane. During the hoisting process, they are hoisted on the supporting system of the steel shed tunnel, that is, on the steel arch frame. This method requires tying them with steel wire ropes and then connecting them with the hook of the crane. The wire rope tying process is time-consuming and labor-intensive, and the lifting point position is easily deformed, which destroys the stability of the overall structure. Utility Model Content

[0005] In order to solve the above-mentioned problems of the prior art, the utility model provides an integral lifting device for a flexible steel shed hole, which solves the problem of time-consuming and labor-intensive wire rope binding process, and at the same time can prevent the steel shed from deformation, thereby ensuring the overall stability of the steel shed after lifting.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integral lifting device for a flexible steel shed hole, comprising a lifting beam, wherein the lifting beam is an I-beam, a lifting ring is fixedly connected to the upper end of the lifting beam, a bearing frame is arranged on the lifting beam, pulleys are rotatably connected to both ends of the bearing frame, the pulleys are located on both sides of the web of the lifting beam, the pulleys are in contact with the lower flange of the lifting beam, a positioning assembly for limiting the displacement of the bearing frame is installed on the bearing frame, and a clamping assembly for clamping the I-beam on the steel shed is installed at the lower end of the bearing frame.

[0007] With the above structural design, the load-bearing frame slidably connected to the lifting beam can change its position at will, which is convenient for construction workers to select suitable lifting points. The clamping assembly is set instead of wire binding, which makes the lifting process simpler and saves time and manpower. At the same time, the clamping assembly protects the integrity of the structure at the lifting point and solves the problem of easy deformation of local points at the lifting point due to stress.

[0008] Preferably, the clamping assembly includes a fixing frame fixedly connected to the lower bottom surface of the supporting frame, a bidirectional screw rod rotatably connected to the fixing frame, a clamping block is symmetrically threaded on the bidirectional screw rod, and one end of the bidirectional screw rod extends out of the fixing frame and is fixedly connected to a rotating handle.

[0009] With the above structural design, the rotation of the bidirectional screw rod is controlled by turning the rotating handle, thereby controlling the symmetrically arranged clamping blocks to move closer or farther away, thereby achieving the clamping and release of the I-beam on the steel scaffolding.

[0010] Preferably, the positioning assembly includes a threaded rod vertically passing through the supporting frame and threadedly connected to the supporting frame, one end of the threaded rod is fixedly connected to a knob, the other end of the threaded rod is fixedly connected to a fixing plate, and the fixing plate abuts against the lifting beam.

[0011] With the above structural design, the distance that the threaded rod extends into the support frame is controlled by turning the knob, thereby controlling the abutment or separation between the fixing plate and the hanging beam, thereby realizing the movement and fixation of the support frame on the hanging beam.

[0012] Preferably, a rubber pad is fixedly connected to a side of the fixing plate close to the lifting beam.

[0013] With the above structural design, the rubber pad is provided to increase the friction between the fixing plate and the lifting beam when in contact, while protecting the lifting beam structure from being squeezed and damaged.

[0014] Preferably, a plurality of bearing frames are slidably connected to the lifting beam, and the distances between adjacent bearing frames are equal.

[0015] The above structural design is adopted to set up multiple lifting points to evenly disperse the lifting force, reduce the deformation of the steel scaffolding and ensure the stability of the overall structure.

[0016] Preferably, two lifting beams are provided and symmetrically connected to the steel scaffolding.

[0017] With the above structural design, two lifting beams are symmetrically arranged, which increases the number of lifting points and makes the lifting process more stable.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The load-bearing frame is slidably connected to the lifting beam and can be changed in position at will, making it easy for construction workers to choose appropriate lifting points. Clamping components are set instead of wire binding to make the lifting process simpler, saving time and manpower. At the same time, multiple clamping components are set to evenly disperse the lifting force, reduce the deformation of the steel scaffolding, and ensure the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the use of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the utility model;

[0022] Figure 3 It is a partial cutaway schematic diagram of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 The utility model provides a technical solution: an integral hoisting device for a flexible steel shed hole, comprising a hoisting beam 3, wherein the hoisting beam 3 is an I-shaped steel, and sealing plates are arranged at both ends of the hoisting beam 3. Three lifting rings 8 are fixedly connected to the upper end of the hoisting beam 3, wherein two lifting rings 8 are located at both ends of the hoisting beam 3, and one lifting ring 8 is located in the middle of the hoisting beam 3. A bearing frame 4 is arranged on the hoisting beam 3, and the cross-sectional shape of the bearing frame 4 is U-shaped. Pulleys 5 are rotatably connected to both ends of the bearing frame 4, and the pulleys 5 are located on both sides of the web of the hoisting beam 3. The pulleys 5 are in contact with the lower flange of the hoisting beam 3, and the pulleys 5 can be arranged to enable the bearing frame 4 to move along the length direction of the hoisting beam 3. A positioning assembly 6 for limiting the displacement of the bearing frame 4 is installed on the bearing frame 4, and a clamping assembly 7 for clamping the I-shaped steel 2 on the steel shed 1 is installed at the lower end of the bearing frame 4. The I-shaped steel 2 is a component of the support system of the steel shed 1. The bearing frame 4 slidably connected to the lifting beam 3 can change its position at will, which is convenient for construction workers to select a suitable lifting point. The clamping assembly 7 is set instead of wire binding, which makes the lifting process simpler and saves time and manpower. At the same time, the clamping assembly 7 is set to protect the integrity of the structure at the lifting point and solves the problem of easy deformation of the local point at the lifting point due to stress.

[0025] The clamping assembly 7 includes a fixing frame 71 welded to the bottom surface of the carrier frame 4, a bidirectional screw rod 72 rotatably connected to the fixing frame 71, and a clamping block 74 symmetrically threadedly connected to the bidirectional screw rod 72. The clamping block 74 is L-shaped, and the lower end of the clamping block 74 can extend into the I-beam 2 to clamp the I-beam 2. One end of the bidirectional screw rod 72 extends out of the fixing frame 71 and is fixedly connected to a rotating handle 73. The bidirectional screw rod 72 is controlled to rotate by rotating the rotating handle 73, thereby controlling the symmetrically arranged clamping blocks 74 to approach or move away, thereby achieving the clamping and release of the I-beam 2 on the steel scaffold 1.

[0026] The positioning assembly 6 includes a threaded rod 62 that vertically passes through the carrier 4 and is threadedly connected to the carrier 4. A knob 61 is fixedly connected to one end of the threaded rod 62, and a fixing plate 63 is fixedly connected to the other end of the threaded rod 62. The fixing plate 63 abuts against the hanging beam 3. The distance that the threaded rod 62 extends into the carrier 4 is controlled by turning the knob 61, thereby controlling the abutment or separation of the fixing plate 71 with the hanging beam 3, so as to realize the movement and fixation of the carrier 4 on the hanging beam 3.

[0027] The fixing plate 63 is fixedly connected with a rubber pad 64 on one side close to the hanging beam 3. The rubber pad 64 increases the friction between the fixing plate 63 and the hanging beam 3 when in contact, and protects the hanging beam 3 structure from being squeezed and damaged.

[0028] Four bearing frames 4 are slidably connected to the hoisting beam 3, and the distances between adjacent bearing frames 4 are equal. Multiple hoisting points are set to evenly disperse the hoisting force, reduce the deformation of the steel scaffold 1, and ensure the stability of the overall structure.

[0029] The hoisting beams 3 are provided with two and are symmetrically connected to the steel scaffold 1. The two hoisting beams 3 are symmetrically provided, which increases the number of hoisting points and makes the hoisting process more stable.

[0030] Working principle: The operator first determines the position of the lifting point according to the length of the steel scaffolding 1 to be hoisted, moves the load-bearing frame 4 to the specified position, and then turns the knob 61 on the positioning component 6 to fix the load-bearing frame 4 on the lifting beam 3. The two lifting beams 3 are placed on the upper ends of the I-beams 2 on both sides of the steel scaffolding 1 by a crane, and the operator stands on the upper part of the steel scaffolding 1 to connect the clamping component 7 on the lifting beam 3 with the I-beam 2. After the connection is completed, the operator can start lifting after leaving the steel scaffolding 1. This device solves the problem of time-consuming and labor-intensive process of steel wire rope binding, and at the same time can prevent the steel scaffolding 1 from deformation, ensuring the overall stability of the steel scaffolding 1 after hoisting.

[0031] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. Although the present utility model is described in detail with reference to the above embodiments, it is still possible for the technical solutions recorded in the above embodiments to be modified, or some of the technical features therein to be replaced by equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An integral hoisting device for a flexible steel shed hole, characterized in that: The invention comprises a lifting beam (3), wherein the lifting beam (3) is an I-shaped steel, the upper end of the lifting beam (3) is fixedly connected to a lifting ring (8), a bearing frame (4) is arranged on the lifting beam (3), both ends of the bearing frame (4) are rotatably connected to pulleys (5), the pulleys (5) are located on both sides of the web of the lifting beam (3), the pulleys (5) are in contact with the lower flange of the lifting beam (3), a positioning component (6) for limiting the displacement of the bearing frame (4) is installed on the bearing frame (4), and a clamping component (7) for clamping the I-shaped steel (2) on the steel scaffold (1) is installed at the lower end of the bearing frame (4).

2. The integral hoisting device of a flexible steel shed hole according to claim 1 is characterized in that: The clamping assembly (7) comprises a fixing frame (71) fixedly connected to the bottom surface of the carrier frame (4), a bidirectional screw rod (72) rotatably connected to the fixing frame (71), a clamping block (74) being symmetrically threadedly connected to the bidirectional screw rod (72), and one end of the bidirectional screw rod (72) extending out of the fixing frame (71) and fixedly connected to a rotating handle (73).

3. The integral hoisting device of a flexible steel shed hole according to claim 1 is characterized in that: The positioning assembly (6) comprises a threaded rod (62) vertically passing through the supporting frame (4) and threadedly connected to the supporting frame (4); one end of the threaded rod (62) is fixedly connected to a knob (61); the other end of the threaded rod (62) is fixedly connected to a fixing plate (63); and the fixing plate (63) is in contact with the lifting beam (3).

4. The integral hoisting device of a flexible steel shed hole according to claim 3 is characterized in that: A rubber pad (64) is fixedly connected to a surface of the fixing plate (63) close to the lifting beam (3).

5. The integral hoisting device of a flexible steel shed hole according to claim 1 is characterized in that: A plurality of bearing frames (4) are slidably connected to the hoisting beam (3), and the distances between adjacent bearing frames (4) are equal.

6. The integral hoisting device of a flexible steel shed hole according to claim 1 is characterized in that: The hoisting beams (3) are provided with two and are symmetrically connected to the steel scaffolding (1).

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