CN210948673U

CN210948673U - Tunnel engineering excavation construction rack

Info

Publication number: CN210948673U
Application number: CN201922147106.5U
Authority: CN
Inventors: 何学军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-07-07
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a tunnel engineering excavation construction rack belongs to construction rack technical field. A tunnel engineering excavation construction rack comprises a support and a working platform, wherein the working platform is connected to the top of the support, a protection plate is slidably connected to the top of the working platform, a telescopic rod is connected to the outer wall of the protection plate, an elastic element is sleeved on the outer wall of the telescopic rod, one end, away from the protection plate, of the telescopic rod is connected with a stress plate, the top of the stress plate is further connected with an elastic mesh enclosure, the bottom of the stress plate is connected with a side plate, the outer wall of the side plate is connected with a sliding block, the top of the protection plate is connected with a fixed; the utility model discloses a rock of rack top drops when construction or rockburst is avoided in the setting of guard plate, hinders the construction operation personnel on the tunnel excavation rack, has improved the security of during operation greatly.

Description

Tunnel engineering excavation construction rack

Technical Field

The utility model relates to a construction rack technical field especially relates to a tunnel engineering excavation construction rack.

Background

The tunnel engineering is a series of construction work carried out in the process of building underground, underwater and mountain buildings, laying railways and building roads, and mainly comprises tunnel planning, surveying, designing, through control measurement and construction work, the tunnels can be divided into three categories of mountain tunnels, underwater tunnels and urban tunnels according to the positions of the tunnels, and the most constructed tunnels are mountain tunnels.

In the in-process at tunnel excavation, along with constantly promoting in tunnel, in order to guarantee convenient operation, need set up the construction rack in the tunnel, in order to make things convenient for the propulsion of excavation operation, present common way is that the manual work erects excavation operation rack temporarily at the excavation part in tunnel, in order to realize that the workman stands on the rack, blast the hole in the tunnel, place manual operation operations such as explosive, and the rack also can block the stone that drops to a certain extent, play the function that improves operational safety, but when construction or country rock produced the rockburst, the rock of support top drops and hinders the construction operation personnel on the tunnel excavation rack very easily, greatly reduced the security of during operation, cause unnecessary economic loss, the potential safety hazard is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that exists among the prior art, and the tunnel engineering excavation construction rack that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tunnel engineering excavation construction rack, includes support and work platform, work platform connects the top at the support, work platform's top sliding connection has the guard plate, guard plate outer wall connection has the telescopic link, the telescopic link outer wall has cup jointed elastic element, the one end that the guard plate was kept away from to the telescopic link is connected with the atress board, the top of atress board still is connected with the elasticity screen panel, the bottom of atress board is connected with the curb plate, curb plate outer wall connection has the slider, the top of guard plate is connected with the fixed block, the fixed block outer wall chiseling has the spout with slider matched with.

Preferably, the elastic mesh enclosure is a metal mesh with high strength, and is arc-shaped.

Preferably, the bottom of the stress plate is connected with a cushion pad, and the cushion pad is movably abutted to the fixing block.

Preferably, the outer wall of both sides of the protection plate is provided with a sliding block, and the outer wall of the working platform is provided with a groove matched with the sliding block in a chiseling mode.

Preferably, the inner wall of the protection plate is connected with a fixed shaft, the outer wall of the fixed shaft is connected with a first connecting rod, the outer wall of the first connecting rod is connected with a positioning rod in a sliding mode, and a positioning groove matched with the positioning rod is formed in the inner wall of the groove in a chiseled mode.

Preferably, the outer wall of the first connecting rod is connected with a tension spring, one end, far away from the first connecting rod, of the tension spring is connected to the outer wall of the working platform, one end, far away from the positioning rod, of the first connecting rod is connected with a buckling block, and the outer wall of the protection plate is provided with a buckling groove matched with the buckling block in a chiseled mode.

Compared with the prior art, the utility model provides a tunnel engineering excavation construction rack possesses following beneficial effect:

1. the tunnel engineering excavation construction rack comprises a groove, a protection plate, a first connecting rod, a positioning rod, a tension spring, a second connecting rod, a fixing block, a positioning groove, a spring net cover, a stress plate, a first connecting rod, a second connecting rod, a fixing block, a positioning rod, a positioning spring and a locking spring, wherein the protection plate is pushed to move in the groove, a worker can adjust the protection plate according to the position of the worker, after the position of the protection plate is adjusted, the first connecting rod is stirred to enable the fastening block to be fastened into the fastening groove, the positioning rod is embedded into the positioning groove, the protection plate is positioned to avoid shaking, in the process, the first connecting rod rotates by taking the fixing shaft as a rotation central point, the first connecting rod rotates upwards to enable the positioning rod to slide on the outer wall of the first connecting rod through a fixing point on the outer side of the positioning rod, the, the atress board receives the downward movement after the pressure, and the telescopic link contracts with elastic element, and the slider of curb plate outer wall slides among the spout in the fixed block, further reduces the impact force of rock, and the setting of blotter is in order to prevent that accidental too big impact makes atress board and fixed block bump, guarantees its life.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses an elasticity screen panel has cushioned the rock and has dropped the rock of guard plate to the setting of atress board, avoids the rock of rack top when construction or rock burst, hinders the construction operation personnel on the tunnel excavation rack, has improved the security of during operation greatly.

Drawings

Fig. 1 is a schematic structural view of a tunnel engineering excavation construction rack provided by the utility model;

fig. 2 is a schematic structural view of the connection between the stress plate and the protection plate of the tunnel engineering excavation construction rack provided by the utility model;

fig. 3 is a schematic structural view of a portion a in fig. 1 of a tunnel engineering excavation construction rack provided by the utility model;

fig. 4 is a schematic structural view of a side surface of a working platform of a tunnel engineering excavation construction rack provided by the utility model;

fig. 5 is the utility model provides a structural schematic of a first connecting rod of tunnel engineering excavation construction rack and locating lever.

In the figure: 1. a support; 2. a working platform; 3. a protection plate; 4. a telescopic rod; 5. an elastic element; 6. a stress plate; 7. an elastic mesh enclosure; 8. a side plate; 801. a slider; 9. a fixed block; 901. a chute; 10. a cushion pad; 11. a slider; 12. a groove; 13. a fixed shaft; 14. a first link; 15. positioning a rod; 16. positioning a groove; 17. a tension spring; 18. buckling blocks; 19. and (4) buckling the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a tunnel engineering excavation construction rack, including support 1 and work platform 2, work platform 2 is connected at the top of support 1, work platform 2's top sliding connection has

protection plate

3, 3 outer wall connections of protection plate have telescopic link 4, 4 outer walls of telescopic link cup joint elastic element 5, the one end that protection plate 3 was kept away from to telescopic link 4 is connected with atress board 6, the top of atress board 6 still is connected with elastic screen panel 7, the bottom of atress board 6 is connected with

curb plate

8, 8 outer wall connections of curb plate have slider 801, the top of protection plate 3 is connected with fixed block 9, the outer wall of fixed block 9 chisels there is spout 901 with slider 801 matched with.

Referring to fig. 1, the elastic mesh 7 is a metal mesh with high strength, and the elastic mesh 7 is arc-shaped.

Referring to fig. 2, a cushion pad 10 is connected to the bottom of the stress plate 6, and the cushion pad 10 is movably abutted against the fixing block 9.

Referring to fig. 1-4, the outer walls of the two sides of the protection plate 3 are provided with sliding blocks 11, and the outer wall of the working platform 2 is provided with grooves 12 matched with the sliding blocks 11.

Referring to fig. 3 and 5, a fixed shaft 13 is connected to the inner wall of the protection plate 3, a first connecting rod 14 is connected to the outer wall of the fixed shaft 13, a positioning rod 15 is slidably connected to the outer wall of the first connecting rod 14, and a positioning groove 16 matched with the positioning rod 15 is formed in the inner wall of the groove 12 in a chiseled mode.

Referring to fig. 1 and 3, the outer wall of the first connecting rod 14 is connected with a tension spring 17, one end of the tension spring 17, which is far away from the first connecting rod 14, is connected to the outer wall of the working platform 2, one end of the first connecting rod 14, which is far away from the positioning rod 15, is connected with a buckling block 18, and a buckling groove 19 matched with the buckling block 18 is formed in the outer wall of the protection plate 3 in a chiseled manner.

In the utility model, when the protection plate 3 is used, the protection plate 3 is pushed to move in the groove 12, a worker can adjust the protection plate 3 according to the position of the worker, after the position of the protection plate 3 is adjusted, the worker can stir the first connecting rod 14 to enable the buckling block 18 to be buckled into the buckling groove 19, so that the positioning rod 15 is embedded into the positioning groove 16 to position the protection plate 3 and avoid shaking, in the process, the first connecting rod 14 rotates by taking the fixed shaft 13 as a rotation central point, the first connecting rod 14 rotates upwards to enable the positioning rod 15 to slide on the outer wall of the first connecting rod 14 through a fixed point at the outer side of the positioning rod, so that the positioning rod 15 passes through the sliding block 11 to enter the positioning groove 16 at the inner wall of the groove 12, the tension spring 17 prevents the first connecting rod 14 from rotating randomly to cause the positioning rod 15 to enter the positioning groove 16, the moving effect of the protection, the elastic mesh enclosure 7 reduces the impact force of rocks for the first time, then the elastic mesh enclosure 7 transmits the pressure to the stress plate 6, the stress plate 6 moves downwards after being subjected to the pressure, the telescopic rod 4 and the elastic element 5 contract, the sliding block 801 on the outer wall of the side plate 8 slides in the sliding groove 901 in the fixed block 9, the impact force of the rocks is further reduced, and the cushion pad 10 is arranged to prevent the stress plate 6 from colliding with the fixed block 9 due to accidental overlarge impact, so that the service life of the cushion pad is ensured; the utility model discloses a setting of elasticity screen panel 7 and atress board 6 has cushioned the rock and to the impact of guard plate 3, avoids the rock of rack top to drop when construction or rockburst, hinders the construction operation personnel on the tunnel excavation rack, has improved the security of during operation greatly.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A tunnel engineering excavation construction rack comprises a support (1) and a working platform (2), wherein the working platform (2) is connected to the top of the support (1), it is characterized in that the top of the working platform (2) is connected with a protective plate (3) in a sliding way, the outer wall of the protection plate (3) is connected with a telescopic rod (4), the outer wall of the telescopic rod (4) is sleeved with an elastic element (5), one end of the telescopic rod (4) far away from the protection plate (3) is connected with a stress plate (6), the top of the stress plate (6) is also connected with an elastic mesh enclosure (7), the bottom of the stress plate (6) is connected with a side plate (8), the outer wall of the side plate (8) is connected with a sliding block (801), the top of the protection plate (3) is connected with a fixing block (9), the outer wall of the fixed block (9) is provided with a sliding groove (901) matched with the sliding block (801).

2. The tunneling excavation construction rack of claim 1, wherein the elastic mesh enclosure (7) is made of a metal mesh with high strength, and the elastic mesh enclosure (7) is provided in an arc shape.

3. The tunneling construction rack according to claim 1, wherein a cushion pad (10) is connected to the bottom of the stress plate (6), and the cushion pad (10) is movably abutted to the fixing block (9).

4. The tunneling construction rack according to claim 1, wherein sliding blocks (11) are arranged on the outer walls of two sides of the protection plate (3), and grooves (12) matched with the sliding blocks (11) are chiseled on the outer wall of the working platform (2).

5. The tunneling construction rack according to claim 4, wherein a fixed shaft (13) is connected to the inner wall of the protection plate (3), a first connecting rod (14) is connected to the outer wall of the fixed shaft (13), a positioning rod (15) is slidably connected to the outer wall of the first connecting rod (14), and a positioning groove (16) matched with the positioning rod (15) is formed in the inner wall of the groove (12).

6. The tunneling construction rack according to claim 5, characterized in that an outer wall of the first connecting rod (14) is connected with a tension spring (17), one end, far away from the first connecting rod (14), of the tension spring (17) is connected to an outer wall of the working platform (2), one end, far away from the positioning rod (15), of the first connecting rod (14) is connected with a buckling block (18), and the outer wall of the protection plate (3) is provided with a buckling groove (19) matched with the buckling block (18).