CN217076649U

CN217076649U - Box culvert lifting appliance device in large-diameter tunnel

Info

Publication number: CN217076649U
Application number: CN202220551283.9U
Authority: CN
Inventors: 王丹; 韩吉平; 姚利军; 张忠超; 李兴旺
Original assignee: Sinohydro Bureau 8 Co Ltd; PowerChina Railway Construction Investment Group Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd; PowerChina Railway Construction Investment Group Co Ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-07-29
Anticipated expiration: 2032-03-14

Abstract

Box culvert hoist device in major diameter tunnel to effectively improve the security and the efficiency of box culvert handling operation in, and convenient operation. The left hook leg and the right hook leg are respectively arranged on two transverse end parts of the cross beam, the upper part of the left hook leg and the right hook leg are connected with the cross beam in a sliding way, and the lower end of the left hook leg and the right hook leg are fixedly connected with a bottom supporting member; a lifting lug and a hook component are arranged in the upper direction of the center of the cross beam, the lower end of the hook is connected with a connecting rod component which acts on the left hook leg and the right hook leg to enable the left hook leg and the right hook leg to slide oppositely, and a synchronizing mechanism is arranged; and anti-collision mechanisms acting on the top surface of the middle box culvert are transversely arranged on the cross beam at intervals.

Description

Box culvert lifting appliance device in large-diameter tunnel

Technical Field

The utility model relates to a tunnel, in particular to box culvert hoist device in major diameter tunnel.

Background

With the rapid development of the traffic industry in China, more and more large-diameter tunnels are applied to expressways, high-speed rails, subways and municipal roads. The section of major diameter tunnel is generally circular, and car, high-speed railway and subway can not directly be gone at the tunnel bottom, need box culvert in the tunnel bottom installation, and limit box culvert is constructed again on both sides, makes the tunnel the inside have a broad plane to supply car, high-speed railway and subway to go. The middle box culvert is an indispensable part in a large-diameter tunnel, and the safe hoisting of a large number of the middle box culverts is a key point and a difficult point of engineering, namely the middle box culvert is unloaded from a transport vehicle or the middle box culvert is hoisted underground from the ground. Because the volume of the middle box culvert is large, the weight is heavy, the hoisting of the middle box culvert is a large risk source, and serious safety accidents can occur if the middle box culvert is careless. The traditional hoisting operation of the middle box culvert adopts the hoisting of the hanging belts, the hoisting of the hanging belts is complex in operation, the edges and corners of the middle box culvert are protruded, and the hanging belts are easily cut to cause safety accidents.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a box culvert hoist device in major diameter tunnel is provided to effectively improve the security and the efficiency of box culvert handling operation in, and convenient operation.

The utility model provides a technical scheme that its technical problem adopted as follows:

the utility model discloses a box culvert hoist device in major diameter tunnel, characterized by: the left hook leg and the right hook leg are respectively arranged on two transverse end parts of the cross beam, the upper part of the left hook leg and the right hook leg are connected with the cross beam in a sliding way, and the lower end of the left hook leg and the right hook leg are fixedly connected with a bottom supporting member; a lifting lug and a hook component are arranged in the upper direction of the center of the cross beam, the lower end of the hook is connected with a connecting rod component which acts on the left hook leg and the right hook leg to enable the left hook leg and the right hook leg to slide oppositely, and a synchronizing mechanism is arranged; and anti-collision mechanisms acting on the top surface of the middle box culvert are transversely arranged on the cross beam at intervals.

The beneficial effects of the utility model are that, compare with box culvert in the traditional suspender handling, can effectively carry the security and the efficiency of handling operation, convenient operation moreover.

Drawings

The specification includes the following two figures:

figure 1 is a front view of the box culvert spreader device in the large-diameter tunnel of the utility model;

figure 2 is the utility model discloses the left side view of box culvert hoist device in the major diameter tunnel.

The figures show the components and corresponding references: the anti-collision device comprises a lifting lug 10, a hook 11, a locking hook 12, an operating handle 13, a locking pin 14, a cross beam 20, a left side connecting rod 21, a right side connecting rod 22, a left side hook leg 31, a right side hook leg 32, a bottom supporting member 33, a roller 34, an anti-collision mechanism 40, a first synchronizing rod 51 and a second synchronizing rod 52.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Referring to fig. 1 and 2, the utility model discloses a box culvert hoist device in large diameter tunnel includes crossbeam 20, left side hook leg 31 and right side hook leg 32, and left side hook leg 31 and right side hook leg 32 are installed respectively on two horizontal tip of crossbeam 20, and its upper portion forms the connection that can slide with crossbeam 20, and lower extreme then fixedly connected with holds in the palm end component 33. The upper direction of the center of the beam 20 is provided with a lifting lug 10 and a hook 11 assembly, the lower end of the hook 11 is connected with a connecting rod assembly which acts on a left hook leg 31 and a right hook leg 32 to enable the left hook leg and the right hook leg to slide oppositely, and the connecting rod assembly is provided with a synchronizing mechanism. Anti-collision mechanisms 40 acting on the top surface of the middle box culvert are arranged on the cross beams 20 at intervals in the transverse direction.

Referring to fig. 1, the beam 20 is a main member for bearing in the middle box culvert hoisting process. The connecting rod assembly is connected with the left hook leg 31 and the right hook leg 32, the left hook leg 31 and the right hook leg 32 can translate inwards or outwards under the control of the connecting rod assembly, and a synchronizing mechanism enabling the left hook leg 31 and the right hook leg 32 to synchronously slide is arranged. The left side hook leg 31 and the right side hook leg 32 are used for providing enough clamping force for the middle box culvert, and the bottom supporting component 33 fixedly arranged at the lower end of the middle box culvert is used for preventing the middle box culvert from sliding off in the hoisting process. The collision prevention mechanism 40 prevents the spreader from colliding into the box culvert.

Referring to fig. 1 and 2, the link assembly includes a left link 21 and a right link 22 symmetrically disposed, one end of the left link 21 and one end of the right link 22 are respectively hinged to the upper portion of a left hook leg 31 and the upper portion of a right hook leg 32, and the other end is hinged to the lower end of the hook 11.

Referring to fig. 1 and 2, the synchronizing mechanism includes a first synchronizing rod 51 and a second synchronizing rod 52, the second synchronizing rod 52 is hinged to the cross beam 20 at the middle portion, the lower end of the second synchronizing rod is hinged to the lower end of the first synchronizing rod 51, and the upper end of the first synchronizing rod 51 is hinged to the middle portion of the left connecting rod 21. The upper end of the second synchronizing rod 52 is fixedly provided with a lock pin 14, a lock hook 12 corresponding to the lock pin 14 is hinged with the lower end of the hook 11, the lower end of the lock hook 12 is hooked on the lock pin 14, and the lock hook 12 is fixedly connected with an operating handle 13 which enables the lock hook to rotate and be separated from the lock pin 14.

Referring to fig. 1, rollers 34 are mounted on the upper portions of the left and

right hook legs

31 and 32 at longitudinally and transversely spaced intervals, and the longitudinally spaced rollers 34 act on the upper and lower surfaces of the cross member 20. The anti-collision mechanism 40 is composed of a screw sleeve and a screw rod which are matched with each other, and the screw sleeve is fixedly connected with the crossbeam 20.

Referring to fig. 1, when the middle box culvert needs to be hoisted, the operating handle 13 is operated to enable the hook 11 to hang the lock pin 14, and the lifting appliance is placed in the middle of the middle box culvert. Then the operating handle 13 is operated to make the hook 11 separate from the hanging pin 14, the hoisting is slowly carried out, and the left hook leg 31 and the right hook leg 32 slide inwards to clamp the middle box culvert. When the box culvert is hoisted to a specified position, the operation handle 13 is operated to enable the hook 11 to hang the lock pin 14, the hoisting tool is hoisted slowly, the hoisting tool is separated from the box culvert, and then one-time hoisting operation is completed. Compare box culvert in traditional suspender handling, this hoist not only convenient operation, and safe and reliable, efficiency is higher.

The foregoing is illustrative of the principles of the present invention and is not intended to limit the invention to the specific constructions and applications shown and described, and all modifications and equivalents thereof that may be resorted to are intended to fall within the scope of the invention.

Claims

1. Box culvert hoist device in major diameter tunnel, characterized by: the hook comprises a cross beam (20), a left hook leg (31) and a right hook leg (32), wherein the left hook leg (31) and the right hook leg (32) are respectively arranged on two transverse end parts of the cross beam (20), the upper part of the left hook leg and the right hook leg are connected with the cross beam (20) in a sliding manner, and the lower end of the left hook leg and the right hook leg is fixedly connected with a bottom supporting member (33); a lifting lug (10) and a hook (11) component are arranged in the upper direction of the center of the cross beam (20), the lower end of the hook (11) is connected with a connecting rod component which acts on the left hook leg (31) and the right hook leg (32) to enable the left hook leg and the right hook leg to slide oppositely, and a synchronizing mechanism is arranged; anti-collision mechanisms (40) acting on the top surface of the middle box culvert are arranged on the cross beam (20) at intervals in the transverse direction.

2. The box culvert spreader device in large-diameter tunnels of claim 1, wherein: the connecting rod assembly comprises a left connecting rod (21) and a right connecting rod (22) which are symmetrically arranged, one end of each of the left connecting rod (21) and the right connecting rod (22) is hinged with the upper parts of the left hook leg (31) and the right hook leg (32), and the other end of each of the left connecting rod and the right connecting rod is hinged with the lower end of the hook (11).

3. The box culvert spreader device in large-diameter tunnels of claim 2, wherein: the synchronous mechanism comprises a first synchronous rod (51) and a second synchronous rod (52), the middle part of the second synchronous rod (52) is hinged with the cross beam (20), the lower end of the second synchronous rod is hinged with the lower end of the first synchronous rod (51), and the upper end of the first synchronous rod (51) is hinged with the middle part of the left connecting rod (21); the upper end of the second synchronizing rod (52) is fixedly provided with a lock pin (14), a lock hook (12) corresponding to the lock pin (14) is hinged with the lower end of the hook (11), the lower end of the lock hook (12) is hooked on the lock pin (14), and an operating handle (13) which enables the lock hook (12) to rotate and be separated from the lock pin (14) is fixedly connected onto the lock hook (12).

4. The box culvert spreader device in large-diameter tunnels of claim 1, wherein: the upper parts of the left side hook leg (31) and the right side hook leg (32) are longitudinally and transversely provided with rollers (34) at intervals, and the rollers (34) at intervals longitudinally act on the upper surface and the lower surface of the cross beam (20).

5. The box culvert spreader device in large-diameter tunnels of claim 1, wherein: the anti-collision mechanism (40) is composed of a spiral sleeve and a screw rod which are matched, and the spiral sleeve is fixedly connected with the cross beam (20).