CN217681822U

CN217681822U - Support mechanism for tunnel excavation

Info

Publication number: CN217681822U
Application number: CN202221392974.5U
Authority: CN
Inventors: 鸟泽明; 李元栋; 马光旭; 高玉成
Original assignee: Qinghai Xingli Highway And Bridge Engineering Co ltd
Current assignee: Qinghai Xingli Highway And Bridge Engineering Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-10-28
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses a gimbal mechanism for tunnel excavation, including the fixed bolster, its swing joint is in the bottom of the backplate is propped up to the edge, the bottom of fixed bolster is rotated and is connected with the connecting block, and the bottom fixedly connected with universal wheel of connecting block to the bottom parallel rotation of fixed bolster is connected with the two-way threaded rod, and the avris swing joint of two-way threaded rod has adjustment mechanism moreover, and the tip avris movable mounting of two-way threaded rod has the fastening belt. This a gimbal mechanism for tunnel excavation, fastening area through setting up for two-way threaded rod can carry out the syntropy simultaneously and rotate, cooperation through adjustment mechanism after that, make the connecting block of both sides can rotate in the fixed block, and then accomodate all universal wheels, prevent this gimbal mechanism from taking place to remove when strutting the tunnel with this, and after the universal wheel is accomodate, the supporting block can laminate with ground mutually completely, increase this gimbal mechanism's stability with this.

Description

Support mechanism for tunnel excavation

Technical Field

The utility model relates to a tunnel construction technical field specifically is a supporting mechanism for tunnel excavation.

Background

The tunnel generally refers to the engineering building of burying in the stratum, is a form that the human beings utilized underground space, and common tunnel can be divided into traffic tunnel, hydraulic tunnel, municipal tunnel, mine tunnel and military tunnel etc. because soil or rock in the regional part is comparatively loose in the excavation work in tunnel, so the staff generally can use special gimbal mechanism to support the tunnel of digging to this avoids the tunnel to take place to cave in and causes dangerous condition to take place, but its device still has certain defect:

1. the existing support mechanism is poor in stability, the support mechanism is easy to move when workers use the support mechanism to support the tunnel, then loose stones in the tunnel are easy to drop, and safety of the support mechanism is reduced.

2. The existing support mechanism is inconvenient to support tunnels of different sizes, so that the support mechanism cannot be completely attached to the inner wall of the tunnel when used in the tunnels of different sizes, and certain use defects exist.

Aiming at the problems, innovative design is urgently needed on the basis of the original support mechanism structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a supporting mechanism for tunnel excavation to solve the relatively poor and inconvenient problem that supports not unidimensional tunnel of stability that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a gimbal mechanism for tunnel excavation, includes edge backplate:

the fixing support is movably connected to the bottom of the edge supporting plate, the bottom of the fixing support is rotatably connected with a connecting block, the bottom of the connecting block is fixedly connected with a universal wheel, the bottom of the fixing support is rotatably connected with a bidirectional threaded rod in parallel, the side of the bidirectional threaded rod is movably connected with an adjusting mechanism, and a fastening belt is movably mounted on the side of the end of the bidirectional threaded rod;

the stabilizing support is fixedly connected to the top of the fixing support, a first electric push rod is fixedly mounted on the side of the stabilizing support, a rectangular support plate is fixedly connected to the end of the first electric push rod, and the other side of the rectangular support plate is attached to the inner wall of the edge supporting guard plate;

the support frame, its fixed connection be in the top of stabilizing support, and the top fixed mounting of support frame has second electric putter to second electric putter's top fixedly connected with arc backup pad, the top of arc backup pad is laminated with the inner wall of edge backplate moreover mutually.

Preferably, the fixed bolster is including unable adjustment base, supporting shoe and fixed block, and unable adjustment base's bottom fixedly connected with supporting shoe to unable adjustment base's bottom fixed mounting has the fixed block, and the bottom inner wall of fixed block rotates with the avris of connecting block to the avris of fixed block rotates with the tip of two-way threaded rod to be connected, unable adjustment base's top and the bottom fixed connection of stabilizing support moreover.

Preferably, the number of the supporting blocks is six, every three of the six supporting blocks form a group, the two groups of supporting blocks are symmetrically arranged by taking the perpendicular bisector of the fixed base as a symmetry axis, and the supporting blocks and the fixed base form an integrated structure.

Preferably, adjustment mechanism is including regulating block, spacing slider and articulated strip, and the top fixedly connected with spacing slider of regulating block to the avris of regulating block rotates and is connected with articulated strip, and the other end of articulated strip rotates with the avris of connecting block moreover and is connected.

Preferably, limit slide's quantity is four, and per two of four limit slide are a set of to two sets of limit slide use the perpendicular bisector of fixed bolster as the symmetry setting, limit slide's bottom and the top fixed connection of regulating block moreover, and the regulating block passes through limit slide and unable adjustment base and constitutes sliding structure, and limit slide's top and unable adjustment base's bottom are laminated mutually moreover.

Compared with the prior art, the beneficial effects of the utility model are that: the support mechanism for tunnel excavation;

1. the adjusting mechanism is provided with an adjusting structure consisting of a fixed support, two-way threaded rods, an adjusting mechanism and a fastening belt, the two-way threaded rods can simultaneously rotate in the same direction through the arranged fastening belt, then the connecting blocks on two sides can rotate in the fixed blocks through the matching of the adjusting mechanism, all universal wheels are accommodated, the support mechanism is prevented from moving when supporting a tunnel, and the support block can be completely attached to the ground after the universal wheels are accommodated, so that the stability of the support mechanism is improved;

2. be provided with first electric putter and second electric putter's regulation structure, first electric putter through setting up, make the interval of both sides rectangle backup pad be convenient for the staff and adjust, and then make the rectangle backup pad laminate mutually with the inner wall of edge backplate completely, second electric putter through setting up, make the position of arc backup pad be convenient for the staff and adjust, and then make the arc backup pad laminate mutually with the inner wall of edge backplate completely, with this let this gimbal mechanism can be suitable for tunnel support of more kinds of sizes, and because rectangle backup pad and arc backup pad laminate mutually with the inner wall of edge backplate, make this gimbal mechanism's the effect of strutting better.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a front view of the fixing bracket of the present invention;

fig. 5 is a schematic side view of the supporting frame of the present invention.

In the figure: 1. an edge support guard plate; 2. fixing a bracket; 21. a fixed base; 22. a support block; 23. a fixed block; 3. connecting blocks; 4. a universal wheel; 5. a bidirectional threaded rod; 6. an adjustment mechanism; 61. a regulating block; 62. a limiting slide block; 63. a hinge strip; 7. a stabilizing support; 8. a first electric push rod; 9. a rectangular support plate; 10. a support frame; 11. a second electric push rod; 12. an arc-shaped support plate; 13. and (7) fastening the belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-5, the present invention provides a technical solution: a support structure for tunnel excavation, comprising: the device comprises an edge supporting plate 1, a fixing support 2, a fixing base 21, a supporting block 22, a fixing block 23, a connecting block 3, a universal wheel 4, a bidirectional threaded rod 5, an adjusting mechanism 6, an adjusting block 61, a limiting slide block 62, a hinge strip 63, a stabilizing support 7, a first electric push rod 8, a rectangular supporting plate 9, a supporting frame 10, a second electric push rod 11, an arc-shaped supporting plate 12 and a fastening belt 13;

the fixing support 2 is movably connected to the bottom of the edge supporting plate 1, the bottom of the fixing support 2 is rotatably connected with a connecting block 3, the bottom of the connecting block 3 is fixedly connected with a universal wheel 4, the bottom of the fixing support 2 is parallelly and rotatably connected with a bidirectional threaded rod 5, the side of the bidirectional threaded rod 5 is movably connected with an adjusting mechanism 6, and a fastening belt 13 is movably mounted on the side of the end part of the bidirectional threaded rod 5;

the stabilizing support 7 is fixedly connected to the top of the fixing support 2, a first electric push rod 8 is fixedly mounted on the side of the stabilizing support 7, a rectangular support plate 9 is fixedly connected to the end of the first electric push rod 8, and the other side of the rectangular support plate 9 is attached to the inner wall of the edge support guard plate 1;

support frame 10, its fixed connection is at the top of stabilizing support 7, and the top fixed mounting of support frame 10 has second electric putter 11 to the top fixedly connected with arc backup pad 12 of second electric putter 11, the top of arc backup pad 12 is laminated with the inner wall of edge backplate 1 mutually moreover.

Referring to fig. 1, 2, 3 and 4, the fixing bracket 2 includes a fixing base 21, a supporting block 22 and a fixing block 23, the bottom of the fixing base 21 is fixedly connected with the supporting block 22, the bottom of the fixing base 21 is fixedly provided with the fixing block 23, the inner wall of the bottom of the fixing block 23 is rotatably connected with the side of the connecting block 3, the side of the fixing block 23 is rotatably connected with the end of the bidirectional threaded rod 5, the top of the fixing base 21 is fixedly connected with the bottom of the stabilizing bracket 7, and the bidirectional threaded rod 5 can stably rotate under the fixing base 21 through the fixing block 23;

referring to fig. 1, 2 and 4, the number of the supporting blocks 22 is six, and each three of the six supporting blocks 22 is a group, and the two groups of supporting blocks 22 are symmetrically arranged with the perpendicular bisector of the fixing base 21 as the symmetry axis, and the supporting blocks 22 and the fixing base 21 form an integrated structure, so that the supporting blocks 22 do not fall down from the bottom of the fixing base 21 when the bracket mechanism is supported in an anti-skid manner by the supporting blocks 22 and the fixing base 21 which are arranged into the integrated structure;

referring to fig. 1, 2 and 3, the adjusting mechanism 6 includes an adjusting block 61, a limiting slider 62 and a hinge bar 63, the top of the adjusting block 61 is fixedly connected with the limiting slider 62, the side of the adjusting block 61 is rotatably connected with the hinge bar 63, the other end of the hinge bar 63 is rotatably connected with the side of the connecting block 3, and the adjusting block 61 can drive the connecting block 3 to rotate inside the fixing block 23 when moving through the hinge bar 63;

referring to fig. 2 and 3, the number of the limiting sliders 62 is four, and each two of the four limiting sliders 62 are a group, and the two groups of the limiting sliders 62 are symmetrically arranged with the perpendicular bisector of the fixing bracket 2 as a symmetry axis, and the bottom of the limiting slider 62 is fixedly connected with the top of the adjusting block 61, and the adjusting block 61 forms a sliding structure with the fixing base 21 through the limiting slider 62, and the top of the limiting slider 62 is attached to the bottom of the fixing base 21, so that the adjusting block 61 can stably move at the bottom of the fixing base 21 when the bidirectional threaded rod 5 rotates, and the adjusting block 61 does not have a position deviation when moving through the adjusting block 61 and the fixing base 21 which are arranged in the sliding structure.

The working principle is as follows: when the support mechanism for tunnel excavation is used, according to fig. 1, 2, 3 and 4, when a worker needs to support an excavated tunnel, the edge support plate 1 is assembled on the inner wall of the tunnel, then the support mechanism is moved into the tunnel through rolling of the universal wheels 4, when the support mechanism is moved to a position to be supported, the handle is grasped and the bidirectional threaded rod 5 is driven to rotate on the side of the support block 22 in the fixed support 2, then the two bidirectional threaded rods 5 can rotate in the same direction through the matching of the fastening belts 13, when the bidirectional threaded rod 5 starts to rotate, the adjusting block 61 in the adjusting mechanism 6 can move towards the middle part through the sliding of the limit sliding block 62, then the connecting block 3 rotates inside the fixed block 23 through the matching of the hinge strips 63, so that the four universal wheels 4 are all accommodated, when the universal wheels 4 are accommodated, the bottom of the support block 22 is completely attached to the ground, and the support mechanism can be firmly fixed in the tunnel;

according to fig. 1, 2 and 5, after the support mechanism is fixed, a worker opens the first electric push rod 8 on the side of the stabilizing support 7 through the controller, so that the rectangular support plates 9 on the two sides can move towards the inner wall of the edge support plate 1, when the side of the rectangular support plate 9 is attached to the inner wall of the edge support plate 1, the worker closes the first electric push rod 8, then the worker opens the second electric push rod 11 on the top of the support frame 10 through the controller, so that the arc support plate 12 can move towards the inner wall of the top of the edge support plate 1, when the side of the arc support plate 12 is attached to the inner wall of the top of the edge support plate 1, the worker closes the second electric push rod 11, and the rectangular support plate 9 and the arc support plate 12 can firmly support the edge support plate 1, so as to prevent the worker from collapsing the tunnel during construction.

Those not described in detail in this specification are well within the skill of the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gimbal mechanism for tunnel excavation, includes edge backplate (1), its characterized in that:

the edge support plate comprises a fixed support (2) which is movably connected to the bottom of the edge support plate (1), the bottom of the fixed support (2) is rotatably connected with a connecting block (3), the bottom of the connecting block (3) is fixedly connected with a universal wheel (4), the bottom of the fixed support (2) is parallelly and rotatably connected with a bidirectional threaded rod (5), the side of the bidirectional threaded rod (5) is movably connected with an adjusting mechanism (6), and a fastening belt (13) is movably mounted on the side of the end part of the bidirectional threaded rod (5);

the stabilizing support (7) is fixedly connected to the top of the fixing support (2), a first electric push rod (8) is fixedly mounted on the side of the stabilizing support (7), a rectangular support plate (9) is fixedly connected to the end portion of the first electric push rod (8), and the other side of the rectangular support plate (9) is attached to the inner wall of the edge support guard plate (1);

support frame (10), its fixed connection be in the top of stabilizing support (7), and the top fixed mounting of support frame (10) has second electric putter (11) to the top fixedly connected with arc backup pad (12) of second electric putter (11), the top of arc backup pad (12) is laminated with the inner wall of edge backup pad (1) mutually moreover.

2. The support mechanism for tunnel excavation according to claim 1, wherein: fixed bolster (2) are including unable adjustment base (21), supporting shoe (22) and fixed block (23), and the bottom fixedly connected with supporting shoe (22) of unable adjustment base (21), and the bottom fixed mounting of unable adjustment base (21) has fixed block (23), and the bottom inner wall of fixed block (23) rotates with the avris of connecting block (3) to be connected, and the avris of fixed block (23) rotates with the tip of two-way threaded rod (5) to be connected, and the top of unable adjustment base (21) and the bottom fixed connection of stabilizing support (7).

3. The support mechanism for tunnel excavation according to claim 2, wherein: the number of the supporting blocks (22) is six, every three of the six supporting blocks (22) is one group, the two groups of supporting blocks (22) are symmetrically arranged by taking the perpendicular bisector of the fixed base (21) as a symmetry axis, and the supporting blocks (22) and the fixed base (21) form an integrated structure.

4. The support mechanism for tunnel excavation according to claim 1, wherein: adjustment mechanism (6) are including adjusting block (61), stop block (62) and articulated strip (63), and the top fixedly connected with stop block (62) of adjusting block (61) to the avris of adjusting block (61) is rotated and is connected with articulated strip (63), and the avris of the other end of articulated strip (63) and connecting block (3) is rotated and is connected moreover.

5. The support mechanism for tunnel excavation according to claim 4, wherein: the quantity of spacing slider (62) is four, and per two of four spacing slider (62) are a set of, and two sets of spacing slider (62) use the perpendicular bisector of fixed bolster (2) to set up as symmetry axis symmetry, and the bottom of spacing slider (62) and the top fixed connection of regulating block (61), and regulating block (61) constitute sliding structure through spacing slider (62) and unable adjustment base (21), and the top of spacing slider (62) is laminated with the bottom of unable adjustment base (21) moreover.