CN210152701U

CN210152701U - Tunnel supporting structure

Info

Publication number: CN210152701U
Application number: CN201920885895.XU
Authority: CN
Inventors: 朱静波; 武永斌; 范峻豪; 郑逢久; 黄文华
Original assignee: Zhejiang Hydropower Construction And Installation Co Ltd
Current assignee: Zhejiang Hydropower Construction And Installation Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-03-17
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a tunnel supporting structure, which comprises a supporting plate component and a supporting frame component; the supporting plate assembly comprises a center top plate and a plurality of groups of side top plates which are hinged with each other, a connecting rod is hinged to the lower end of each side top plate, a moving block is hinged to the lower end of each connecting rod, and a sliding groove frame is nested in the moving block. The utility model discloses a through being equipped with mutual articulated center roof and multiunit side roof, connecting rod and including the first hand drive mechanism of worm gear, through driving the movable block and going up and down to drive the connecting rod and remove, and then adjust the radian of backup pad subassembly, the tunnel roof of different radians of better laminating improves backup pad subassembly atress homogeneity, improves the support effect; through the lifting disk and the hand actuating mechanism that are equipped with the fixed awl of fixedly connected with, realize reciprocating of fixed awl, conveniently fix whole device, cooperate the universal wheel simultaneously, conveniently remove and fix.

Description

Tunnel supporting structure

Technical Field

The utility model relates to a supporting construction field specifically is a tunnel supporting construction.

Background

The supporting structure as a structural system should meet the requirements of stability and deformation, namely the requirements of two limit states, namely a bearing capacity limit state and a normal use limit state, which are generally specified in the specification. The limited bearing capacity state refers to the state of support structure damage, toppling, sliding or peripheral environment damage for the foundation pit support, and the instability occurs in a relatively large range. The general design requirement is that the supporting structure is not allowed to assume such extreme conditions. The limit state of normal use refers to deformation of the supporting structure or deformation of the surrounding soil body caused by excavation, which affects normal use but does not cause structural instability. Therefore, the design of the foundation pit support has enough safety factor relative to the extreme bearing capacity state, so that the support cannot be unstable, and the displacement is controlled under the condition of ensuring no instability, so that the safe use of surrounding buildings cannot be influenced.

In tunnel construction, need support the protection to the tunnel after the excavation, the supporting mechanism that traditional adoption scaffold was built builds, it is longer to build the process, adjusts inconveniently to the radian of strutting the roof in addition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tunnel supporting construction to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a tunnel supporting structure comprises a supporting plate assembly and a supporting frame assembly; the supporting plate assembly comprises a central top plate and a plurality of groups of side top plates which are hinged with each other, and the side top plates are hinged with the central top plate through hinge shafts; the lower end of the supporting plate component is connected with a supporting frame component, and the supporting frame component comprises a central supporting rod, a cross beam rod, a vertical rod and a connecting rod; the lower end of the side top plate is hinged with a connecting rod, the lower end of the connecting rod is hinged with a movable block, the movable block is nested with a sliding groove frame, a first lead screw is arranged in a sliding groove of the sliding groove frame, the first lead screw penetrates through the movable block and is in threaded connection with the movable block, and the first lead screw is connected with a first manual driving mechanism.

As a further aspect of the present invention: the central top plate and the side top plates are both arc-shaped plates.

As a further aspect of the present invention: the central top plate is fixedly connected with the cross beam rod through a central support rod, and the end part of the cross beam rod is fixedly connected with a vertical rod; the beam rod and the vertical rod are telescopic rods and are provided with limit bolts.

As a further aspect of the present invention: the chute frame is fixedly connected with the vertical rod.

As a further aspect of the present invention: the first manual driving mechanism comprises a first worm wheel sleeved on the first screw rod, the first worm wheel is meshed with a first worm, and the first worm extends to the outer side of the sliding groove frame and is fixedly connected with a first adjusting wheel.

As a further aspect of the present invention: the lower end of the vertical rod is fixedly connected with a universal wheel, the outer side of the vertical rod is sleeved with a lifting disc, and the lifting disc is connected with the vertical rod in a sliding manner; the lower end face of the lifting disc is fixedly connected with circumferentially distributed fixing cones; and a second screw rod penetrates through the lifting disc, and the second screw rod is connected with a second manual driving mechanism.

As a further aspect of the present invention: the second hand-operated driving mechanism comprises a second worm wheel fixedly connected with the upper end of the second screw rod, a second worm is meshed with the second worm wheel, the second worm is rotatably connected with the vertical rod through a bearing seat, and a second adjusting wheel is fixedly connected with the second worm.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a through being equipped with mutual articulated center roof and multiunit side roof, connecting rod and including the first hand drive mechanism of worm gear, through driving the movable block and going up and down to drive the connecting rod and remove, and then adjust the radian of backup pad subassembly, the tunnel roof of different radians of better laminating improves backup pad subassembly atress homogeneity, improves the support effect, and it is convenient to adjust; through the lifting disk and the hand actuating mechanism that are equipped with the fixed awl of fixedly connected with, realize reciprocating of fixed awl, conveniently fix whole device, cooperate the universal wheel simultaneously, conveniently remove and fix.

Drawings

Fig. 1 is a front view of a tunnel supporting structure;

FIG. 2 is a schematic side view of a chute frame in a tunnel support structure;

fig. 3 is a schematic front structural view of a chute frame in a tunnel supporting structure;

FIG. 4 is an enlarged view taken at A in FIG. 1;

fig. 5 is a perspective view of a lifting plate in a tunnel supporting structure.

In the figure: 1-a central top plate; 2-side roof; 3-a hinge shaft; 4-a central support bar; 5-a beam rod; 6-vertical rod; 7-a connecting rod; 8-moving block; 9-a chute frame; 10-a first screw rod; 11-a first worm gear; 12-a first worm; 13-a first regulating wheel; 14-a lifting disc; 15-fixing the cone; 16-a second screw rod; 17-a second worm gear; 18-a second worm; 19-a second regulating wheel; 20-universal wheel.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, in an embodiment of the present invention, a tunnel supporting structure includes a supporting plate assembly and a supporting frame assembly; the supporting plate component comprises a central top plate 1 and a plurality of groups of side top plates 2 which are mutually hinged, the side top plates 2 are hinged with the central top plate 1 through hinged shafts 3, the central top plate 1 and the side top plates 2 are arc plates and are mutually hinged, the radian of the supporting plate component can be adjusted conveniently, the top wall of a tunnel is laminated, the stress of the supporting plate component is more uniform, and the supporting effect is improved.

The lower end of the supporting plate component is connected with a supporting frame component, and the supporting frame component comprises a central supporting rod 4, a cross beam rod 5, a vertical rod 6 and a connecting rod 7; the central top plate 1 is fixedly connected with a cross beam rod 5 through a central support rod 4, the cross beam rod 5 is a telescopic rod and is provided with a limiting bolt, and particularly, the limiting bolt penetrates through an inner cylinder and an outer cylinder of the cross beam rod 5 to realize the length fixing of the cross beam rod 5, so that the length of the cross beam rod 5 can be changed to adapt to the support of tunnels with different width specifications; the end part of the beam rod 5 is fixedly connected with a vertical rod 6, the vertical rod 6 is a sleeve type telescopic rod which is vertically arranged, and a limit bolt is arranged on the vertical rod 6, so that the height of the support frame assembly is conveniently adjusted, and the support frame assembly is suitable for supporting tunnels with different height specifications; the lower end of the side top plate 2 is hinged with a connecting rod 7, the lower end of the connecting rod 7 is hinged with a movable block 8, the movable block 8 is nested with a chute frame 9 provided with a vertical chute, the chute frame 9 is fixedly connected with a vertical rod 6, a first lead screw 10 is arranged in the vertical chute of the chute frame 9, the first lead screw 10 penetrates through the movable block 8 and is in threaded connection with the movable block 8, the first lead screw 10 is connected with a first manual driving mechanism, the first manual driving mechanism comprises a first worm wheel 11 sleeved on the first lead screw 10, the first worm wheel 11 is meshed with a first worm 12, the first worm 12 extends to the outer side of the chute frame 9 and is fixedly connected with a first adjusting wheel 13, the first adjusting wheel 13 is rotated to drive the first lead screw 10 to rotate and further drive the movable block 8 to move up and down, the movable block 8 drives the side top plate 2 to rotate through the connecting rod 7, and further rapidly adjusts the radian of a support plate assembly consisting, convenient adjustment and good adaptability.

Example 2

Referring to fig. 4 and 5, the present embodiment is different from embodiment 1 in that: the lower end of the vertical rod 6 is fixedly connected with a universal wheel 20, so that the supporting device is convenient to move, a lifting disc 14 is sleeved on the outer side of the vertical rod 6, and the lifting disc 14 is connected with the vertical rod 6 in a sliding manner; the lower end surface of the lifting disc 14 is fixedly connected with fixing cones 15 which are distributed circumferentially; the lifting disc 14 penetrates through a second screw rod 16, the second screw rod 16 is connected with a second manual driving mechanism, the second manual driving mechanism comprises a second worm wheel 17 fixedly connected with the upper end of the second screw rod 16, a second worm 18 is meshed with the second worm wheel 17, the second worm 18 is rotatably connected with the vertical rod 6 through a bearing seat, a second worm 18 is fixedly connected with a second adjusting wheel 19, the second adjusting wheel 19 is rotated, the lifting disc 14 is driven to move up and down, so that the fixing cone 15 can move up and down, soil on the ground is inserted, the device is fixed, and meanwhile when the device is moved, the fixing cone 15 moves upwards to be separated from the soil and is convenient to move.

The following are specifically mentioned: in the application, a cross beam rod, a vertical rod and a universal wheel which are sleeve type telescopic rods are the prior art; the device is characterized in that a central top plate, a side top plate, a connecting rod, a moving block, a lead screw, a first manual driving mechanism comprising a worm gear and a worm, and a lifting disc fixedly connected with a fixed cone are hinged with each other; the central top plate, the side top plates, the connecting rods and the first manual driving mechanism comprising the worm gear and the worm, which are mutually hinged, are arranged, the connecting rods are driven to move by driving the moving blocks to ascend and descend, so that the radian of the supporting plate component is adjusted, tunnel top walls with different radians are better attached, the stress uniformity of the supporting plate component is improved, the supporting effect is improved, and the adjustment is convenient; through the lifting disk and the hand actuating mechanism that are equipped with the fixed awl of fixedly connected with, realize reciprocating of fixed awl, conveniently fix whole device, cooperate the universal wheel simultaneously, conveniently remove and fix.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A tunnel supporting structure comprises a supporting plate assembly and a supporting frame assembly; the supporting plate component is characterized by comprising a central top plate (1) and a plurality of groups of side top plates (2) which are hinged with each other, wherein the side top plates (2) are hinged with the central top plate (1) through hinge shafts (3); the lower end of the supporting plate component is connected with a supporting frame component, and the supporting frame component comprises a central supporting rod (4), a cross beam rod (5), a vertical rod (6) and a connecting rod (7); the lower end of the side top plate (2) is hinged with a connecting rod (7), the lower end of the connecting rod (7) is hinged with a movable block (8), the movable block (8) is nested with a sliding groove frame (9), a first lead screw (10) is arranged in a sliding groove of the sliding groove frame (9), the first lead screw (10) penetrates through the movable block (8) and is in threaded connection with the movable block (8), and the first lead screw (10) is connected with a first manual driving mechanism.

2. The tunnel supporting construction according to claim 1, characterized in that the central roof plate (1) and the side roof plates (2) are arc-shaped plates.

3. The tunnel supporting structure according to claim 1, wherein the central top plate (1) is fixedly connected with the beam rods (5) through the central supporting rod (4), and the end parts of the beam rods (5) are fixedly connected with the vertical rods (6); the beam rod (5) and the vertical rod (6) are telescopic rods and are provided with limit bolts.

4. A tunnel support structure according to claim 1, characterised in that the runner carriage (9) is fixedly connected to the vertical bar (6).

5. The tunnel supporting structure according to claim 1, characterized in that the first hand-operated driving mechanism comprises a first worm wheel (11) sleeved on the first screw rod (10), the first worm wheel (11) is engaged with a first worm (12), and the first worm (12) extends to the outer side of the chute frame (9) and is fixedly connected with a first adjusting wheel (13).

6. The tunnel supporting structure according to claim 1, wherein universal wheels (20) are fixedly connected to the lower ends of the vertical rods (6), lifting disks (14) are sleeved on the outer sides of the vertical rods (6), and the lifting disks (14) are slidably connected with the vertical rods (6); the lower end surface of the lifting disc (14) is fixedly connected with fixing cones (15) which are distributed circumferentially; a second screw rod (16) penetrates through the lifting disc (14), and the second screw rod (16) is connected with a second manual-rocking driving mechanism.

7. The tunnel supporting structure of claim 6, wherein the second hand-operated driving mechanism comprises a second worm wheel (17) fixedly connected with the upper end of the second screw rod (16), the second worm wheel (17) is meshed with a second worm (18), the second worm (18) is rotatably connected with the vertical rod (6) through a bearing seat, and a second adjusting wheel (19) is fixedly connected with the second worm (18).