Safety belt hooking device for open cut tunnel vault construction

Abstract

The utility model discloses a safety belt hooking device for open-cut tunnel vault construction. The device comprises two channel steel frames, a steel wire rope and a euphroe, the two channel steel frames are oppositely arranged on the water retaining edges on the two sides of the top of the tunnel deep foundation pit in the mode that the channel steel frames can slide along the water retaining edges. Each channel steel frame comprises a main body frame, a lead screw and a rubber wheel. The main body frame is in a seat shape, two lead screws which are arranged up and down are installed on two supporting legs located at the front end respectively and used for fixing the channel steel frame to the water retaining edge, a plurality of rubber wheels which are arranged on the top face of the water retaining edge are installed on the bottom face of a front cross beam and the bottom face of a rear cross beam in the middle of the main body frame at intervals, and the axial direction of the rubber wheels is perpendicular to the length direction of the water retaining edge. One end of the steel wire rope is fixed to one channel steel frame, and the other end of the steel wire rope is fixed to the other channel steel frame through a euphroe. The device is simple in manufacturing process, stable in structure, high in operability, convenient to use, applicable to various construction occasions and worthy of popularization and application. Personal safety in construction of the arch crown of the open-cut tunnel can be effectively improved, and safety and high efficiency are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the construction facility technical field of open cut tunnel, deep and big foundation pit, and particularly relates to a hooking device for safety belt of open cut tunnel vault construction. BACKGROUND

[0002] With the continuous improvement of the economic level of our country, the construction industry has very high requirements for construction safety, and personal safety is the most important. Therefore, adopting new technology, new method and new tooling, improving labor safety, and reducing on-site safety hazards are the development trend of the future construction industry. In the traditional vault construction, the safety belt of the vault reinforcement binding operation personnel is usually hooked on the reinforcement, which does not comply with the principle of "high hanging and low use" of the safety belt, and when the operation personnel moves, the safety belt needs to be repeatedly disassembled and hooked, so the construction efficiency is low. In addition, when the vault concrete is poured and the waterproof layer is constructed, there is no place to hook the safety belt, and the safety hazard is large. SUMMARY

[0003] In order to solve the above problems, the utility model discloses a hooking device for safety belt of open cut tunnel vault construction.

[0004] In order to achieve the above purpose, the hooking device for safety belt of open cut tunnel vault construction provided by the utility model comprises two channel steel frames, a steel wire rope and a rope tightener. The two channel steel frames are arranged on the water retaining rails on the two sides of the top of the tunnel deep foundation pit in a sliding manner along the water retaining rails. Each channel steel frame comprises a main frame, a lead screw and a rubber wheel. The main frame is in a seat shape. Two lead screws arranged vertically are respectively installed on the two legs at the front end of the main frame, which are used to fix the channel steel frame on the water retaining rail. A plurality of rubber wheels arranged on the top surface of the water retaining rail are installed on the bottom surface of the middle front and rear beams of the main frame in a spaced manner, and the axial direction of the rubber wheels is perpendicular to the length direction of the water retaining rail. One end of the steel wire rope is fixed on one channel steel frame, and the other end is fixed on the other channel steel frame through the rope tightener.

[0005] The channel steel frame is made of 6.3# channel steel by welding.

[0006] The number of rubber wheels is six.

[0007] The hooking device for safety belt of open cut tunnel vault construction provided by the utility model has the following beneficial effects: simple manufacturing process, stable structure, strong operability, convenient to use, applicable to various construction occasions, and worth popularizing. It can effectively improve the personal safety in the construction of open cut tunnel vault, and is safe and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figures 1 to 3 Respectively, the main, side and plan views of the channel steel frame in the hooking device for safety belt of open cut tunnel vault construction provided by the utility model are shown.

[0009] Figure 4 is a schematic diagram of the using state of the open cut tunnel vault construction safety belt hooking device provided by the utility model. DETAILED DESCRIPTION

[0010] The utility model will be described in detail below in combination with the drawings and specific embodiments.

[0011] As Figures 1-4 shown, the open cut tunnel vault construction safety belt hooking device provided by the utility model comprises two channel steel frames 1, a steel wire rope 2 and a rope tightener, wherein the two channel steel frames 1 are oppositely arranged on the water retaining edges 3 on both sides of the top of the deep foundation pit of the tunnel in a sliding mode along the water retaining edges 3, each channel steel frame 1 comprises a main frame 4, a lead screw 5 and a rubber wheel 6; the main frame 4 is in a seat shape, two lead screws 5 arranged in an up-down mode are respectively installed on the two legs at the front end, for fixing the channel steel frame 1 on the water retaining edge 3, a plurality of rubber wheels 6 arranged on the top surface of the water retaining edge 3 are installed on the bottom surface of the front and rear cross beams of the middle part of the main frame 4 in an interval mode, and the axial direction of the rubber wheels 6 is perpendicular to the length direction of the water retaining edge 3; one end of the steel wire rope 2 is fixed on one channel steel frame 1, and the other end is fixed on the other channel steel frame 1 through the rope tightener.

[0012] The channel steel frame 1 is made of 6.3# channel steel by welding.

[0013] The number of the rubber wheels 6 is six.

[0014] The using method of the open cut tunnel vault construction safety belt hooking device provided by the utility model will be described as follows:

[0015] When used, the lower parts of the two channel steel frames 1 are respectively inserted on the two water retaining edges 3 on both sides of the top of the deep foundation pit of the tunnel, and the front ends of the channel steel frames 1 face outward, then the lead screws 5 are tightened to tightly fix the channel steel frames 1 on the water retaining edges 3, then one end of the steel wire rope 2 is fixed on one channel steel frame 1, and the other end is fixed on the other channel steel frame 1 through the rope tightener. When the construction personnel perform the reinforcement binding, concrete pouring and waterproof layer protection layer construction on the vault, the safety belt is hooked on the steel wire rope 2, and the safety belt moves on the steel wire rope 2 along with the movement of the construction personnel. After the construction of one section is completed, the safety belt is taken off from the steel wire rope 2, the steel wire rope 2 is loosened, then the lead screws 5 at the lower parts of the channel steel frames 1 are untightened, and the channel steel frames 1 are pushed to the next construction section by the rubber wheels 6. After the lead screws 5 are tightened and the steel wire rope 2 is fastened, the above method is continuously used.

Claims

1. A safety belt hook device for open-cut tunnel arch construction, characterized in that: The open cut tunnel vault construction safety belt hooking device comprises two channel steel frames (1), a steel wire rope (2) and a rope tightener, wherein the two channel steel frames (1) are oppositely arranged on the water retaining edges (3) on both sides of the top of the deep foundation pit of the tunnel in a sliding manner along the water retaining edges (3), each channel steel frame (1) comprises a main frame (4), a lead screw (5) and a rubber wheel (6), the main frame (4) is in a seat shape, two lead screws (5) arranged in an up-down manner are respectively installed on the two legs at the front end, for fixing the channel steel frame (1) on the water retaining edge (3), a plurality of rubber wheels (6) arranged on the top surface of the water retaining edge (3) are installed on the bottom surface of the middle front and rear beams of the main frame (4) in an interval manner, and the axial direction of the rubber wheel (6) is perpendicular to the length direction of the water retaining edge (3), one end of the steel wire rope (2) is fixed on one channel steel frame (1), and the other end is fixed on the other channel steel frame (1) through the rope tightener.

2. The open cut tunnel vault construction safety belt hooking device according to claim 1, characterized in that: The channel steel frame (1) is welded by 6.3# channel steel.

3. The open cut tunnel vault construction safety belt hooking device according to claim 1, characterized in that: The number of the rubber wheels (6) is six.

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