CN221052358U - Tunnel inverted arch construction van-type hydraulic trestle - Google Patents
Tunnel inverted arch construction van-type hydraulic trestle Download PDFInfo
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- CN221052358U CN221052358U CN202322343065.3U CN202322343065U CN221052358U CN 221052358 U CN221052358 U CN 221052358U CN 202322343065 U CN202322343065 U CN 202322343065U CN 221052358 U CN221052358 U CN 221052358U
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- supporting leg
- escape
- inverted arch
- van
- middle supporting
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- 238000010276 construction Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 230000000670 limiting effect Effects 0.000 claims abstract description 14
- 238000013459 approach Methods 0.000 claims description 31
- 210000001364 upper extremity Anatomy 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a tunnel inverted arch construction van-type hydraulic trestle, wherein a connecting cross beam is arranged between two main beams and surrounds a rectangular frame structure to serve as an escape passage; the connecting beam is H-shaped steel, and the bottom of the connecting beam arranged at the lower end is provided with a left steel track and a right steel track which extend forwards and backwards; the front end of the main beam is arranged on a left front supporting leg transverse frame and a right front supporting leg transverse frame, and a groove for installing a transverse movement limiting device for driving the main beam to move left and right is arranged in the middle of the front supporting leg transverse frame; the middle part of the main beam is provided with a movable middle supporting leg, the movable middle supporting leg is suspended on a steel rail through a middle supporting leg driving device arranged on the top surface of a middle supporting leg transverse frame, and the top of the movable middle supporting leg is provided with a pulley; the traction assembly is arranged on the steel rail. The main beam is used as a logistics driving channel, the passing width is not limited by the main beam, and a good passing space is provided; the connecting cross beam is adopted between the two main beams, and the steel rail is arranged, so that the height of the required supporting leg is reduced; the space between the two main beams is used as an escape passage, and people and vehicles are separated for evacuation and escape.
Description
Technical Field
The utility model relates to the technical field of tunnel or underground engineering, in particular to a box type hydraulic trestle for tunnel inverted arch construction.
Background
The traditional hydraulic trestle driving channel adopts a middle bearing type driving channel, the driving channel is arranged between two main beams, and the main beams are placed on a cross frame in the middle of each supporting leg, so that the supporting legs are higher and the passing width can be influenced by the placement height of the main beams. Meanwhile, when the passage height of the trestle is higher, the front and rear approach bridges meet the requirement of the passage gradient, so that the passage gradient is reduced by adopting a mode of reinforcing the front and rear approach bridges, the overall length of the trestle is prolonged, and the safety step threshold of a tunnel is also increased. The traditional hydraulic trestle driving channel is not provided with a man-car separation escape channel along the trestle girder, so that constructors are difficult to escape when accidents occur.
Disclosure of utility model
Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide the tunnel inverted arch construction van-type hydraulic trestle which can reduce the pass height of the trestle and is provided with the escape passage for people.
In order to solve the technical problems, the utility model adopts the following technical scheme: the tunnel inverted arch construction van-type trestle comprises a main beam, an escape channel, a power wheel, movable middle supporting legs, front supporting legs, a traction assembly, a front approach bridge and a rear approach bridge which are respectively arranged at the front end and the rear end of the main beam, wherein the main beam is arranged in a left-right mode, and a connecting cross beam is arranged between the two main beams and is enclosed into a rectangular frame structure to serve as the escape channel; the connecting beam is H-shaped steel, and the bottom of the connecting beam arranged at the lower end is provided with a left steel track and a right steel track which extend forwards and backwards; the front ends of the main beams are placed on left and right front leg crossbearers, and grooves for installing a transverse movement limiting device for driving the main beams to move left and right are formed in the middle of the front leg crossbearers, so that the transverse movement limiting device is flush with the top surfaces of the front leg crossbearers; the main beam is provided with a movable middle supporting leg, the movable middle supporting leg is suspended on a steel rail through a middle supporting leg driving device arranged on the top surface of a middle supporting leg transverse frame, and the top of the movable middle supporting leg is provided with a pulley which is convenient for moving back and forth at the bottom of the corresponding main beam; the traction assembly is arranged on the steel rail.
Preferably, the escape channel is a circular channel, reinforcing rib plates are arranged on the periphery of the escape channel, and the structural strength of the escape channel is ensured.
Preferably, the front end of the escape channel is provided with an escape channel approach, the escape channel approach is suspended at the bottom of the front approach bridge, the vehicle is not occupied to pass, and the escape personnel can smoothly enter the escape channel.
Preferably, a movable cover plate is arranged in the middle of the rear approach bridge in a neutral position, when an evacuee approaches the rear approach bridge from the escape passage to the trestle through the escape passage, the movable cover plate is opened from inside to escape, and the escape passage does not affect the running of the vehicle when not used.
Preferably, the traction assembly pulls the inverted arch form and the central ditch form to move back and forth through the steel track.
Preferably, the transverse movement limiting device is formed by positively and negatively arranging two groups of hydraulic cylinders, and drives the trestle to transversely move and simultaneously has a limiting function.
The utility model has the beneficial effects that: the main beam is used as a logistics driving channel and is used as a bearing structure, the passing width is not limited by the main beam, and a good passing space is provided; the connecting cross beam is adopted between the two main beams, and the steel rail is arranged to connect the movable middle supporting leg and the traction component, so that the height of the required supporting leg is reduced to reduce the passing height of the trestle; the space between the two main beams is used as an escape passage, and people and vehicles are separated for evacuation and escape.
Drawings
FIG. 1 is an elevational schematic of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a schematic view of the escape route;
FIG. 4 is a schematic cross-sectional view of a power wheel according to the present utility model;
FIG. 5 is a schematic cross-sectional view of an active leg of the present utility model;
FIG. 6 is a schematic cross-sectional view of a front leg of the present utility model;
FIG. 7 is a schematic view of a traversing limiting device;
In the figure: the escape system comprises a main beam 1, a connecting cross beam 2, a steel rail 2a, an escape channel 3, a reinforcing rib plate 4, a power wheel 5, a movable middle supporting leg 6, a middle supporting leg transverse frame 6, a middle supporting leg driving device 7, a front supporting leg 8, a front supporting leg transverse frame 8, a traversing limiting device 9, a front approach bridge 10, a rear approach bridge 11, a traction component 12 and an escape channel approach 13.
Detailed Description
For a better understanding of the improvements of the present utility model with respect to the prior art, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments.
As shown in fig. 1-7, a tunnel inverted arch construction van-type trestle mainly comprises a main beam 1, an escape channel 3, a power wheel 5, a movable middle supporting leg 6, a front supporting leg 8, a traction component 12, and a front approach bridge 10 and a rear approach bridge 11 which are respectively arranged at the front end and the rear end of the main beam 1, wherein the main beam 1 is provided with a left approach channel and a right approach channel which are used as logistics driving lanes.
A connecting cross beam 2 is arranged between the two main beams 1 and is enclosed into a rectangular frame structure to serve as an escape passage 3. The escape channel 3 is a circular channel, and reinforcing rib plates 4 are arranged around the escape channel 3 to increase the structural strength. The front end of the escape channel 3 is provided with an escape channel approach 13, and the escape channel approach 13 is hung at the bottom of the front approach bridge 10 and is used as a walk for entering the escape channel 3. An emergency lighting device is arranged in the escape channel 3, meanwhile, a movable cover plate is arranged in the middle of the rear approach bridge 11 in a neutral position, and when an evacuee passes through the escape channel 3 from the escape channel approach channel 13 to the trestle rear approach bridge 11, the movable cover plate is opened from inside to escape.
The connecting beam 2 is H-shaped steel for reinforcing the lateral stability of the trestle, and the bottom of the connecting beam 2 arranged at the lower end is provided with a left steel track 2a and a right steel track 2a which extend back and forth. The front end of the main beam 1 is placed on the left front leg transverse frame 8a and the right front leg transverse frame 8a, and a groove for installing a transverse movement limiting device 9 for driving the main beam 1 to move left and right is formed in the middle of the front leg transverse frame 8a, so that the transverse movement limiting device 9 is flush with the top surface of the front leg transverse frame 8 a. The transverse movement limiting device 9 is formed by arranging two groups of hydraulic cylinders positively and negatively, and drives the trestle to transversely move and simultaneously has a limiting effect.
The girder 1 is provided with a movable middle supporting leg 6, the movable middle supporting leg 6 is suspended on a steel rail 2a through a middle supporting leg driving device 7 arranged on the top surface of a middle supporting leg transverse frame 6a, and a pulley is arranged at the top of the movable middle supporting leg 6 so as to facilitate the front-back movement at the bottom of the corresponding girder 1. The traction assembly 12 is arranged on the steel rail 2 a. The traction assembly 12 pulls the inverted arch form 12a and the central ditch form 12b back and forth through the steel track 2 a.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a tunnel inverted arch construction van-type hydraulic trestle, includes girder (1), escape channel (3), power wheel (5), landing leg (6), preceding landing leg (8), traction assembly (12) and sets up preceding approach bridge (10) and back approach bridge (11) at girder (1) front and back both ends respectively in the activity, and girder (1) sets up to control two, its characterized in that: a connecting cross beam (2) is arranged between the two main beams (1) and is enclosed into a rectangular frame structure to serve as an escape passage (3); the connecting beam (2) is H-shaped steel, and the bottom of the connecting beam (2) arranged at the lower end is provided with a left steel track (2 a) and a right steel track which extend forwards and backwards; the front ends of the main beams (1) are placed on left and right front leg crossbearers (8 a), and grooves for installing transverse movement limiting devices (9) for driving the main beams (1) to move left and right are formed in the middle of the front leg crossbearers (8 a), so that the transverse movement limiting devices (9) are flush with the top surfaces of the front leg crossbearers (8 a); the main beam (1) is provided with a movable middle supporting leg (6), the movable middle supporting leg (6) is suspended on a steel rail (2 a) through a middle supporting leg driving device (7) arranged on the top surface of a middle supporting leg transverse frame (6 a), and a pulley is arranged at the top of the movable middle supporting leg (6) so as to move back and forth at the bottom of the corresponding main beam (1); the traction assembly (12) is arranged on the steel rail (2 a).
2. The tunnel inverted arch construction van-type hydraulic trestle according to claim 1, characterized in that: the escape channel (3) is a circular channel, and reinforcing rib plates (4) are arranged around the escape channel (3).
3. The tunnel inverted arch construction van-type hydraulic trestle according to claim 1, characterized in that: the front end of the escape channel (3) is provided with an escape channel approach (13), and the escape channel approach (13) is suspended at the bottom of the front approach bridge (10).
4. A tunnel inverted arch construction van-type hydraulic trestle according to claim 3, characterized in that: the middle neutral gear of the rear approach bridge (11) is provided with a movable cover plate, and when an evacuee passes through the escape channel (3) from the escape channel approach (13) to the rear approach bridge (11) of the trestle, the movable cover plate is opened from inside to escape.
5. The tunnel inverted arch construction van-type hydraulic trestle according to claim 1, characterized in that: the traction assembly (12) is used for traction of the inverted arch template (12 a) and the central ditch template (12 b) to move back and forth through the steel track (2 a).
6. The tunnel inverted arch construction van-type hydraulic trestle according to claim 1, characterized in that: the transverse movement limiting device (9) is formed by arranging two groups of hydraulic cylinders in a positive and negative mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322343065.3U CN221052358U (en) | 2023-08-30 | 2023-08-30 | Tunnel inverted arch construction van-type hydraulic trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322343065.3U CN221052358U (en) | 2023-08-30 | 2023-08-30 | Tunnel inverted arch construction van-type hydraulic trestle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221052358U true CN221052358U (en) | 2024-05-31 |
Family
ID=91226094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322343065.3U Active CN221052358U (en) | 2023-08-30 | 2023-08-30 | Tunnel inverted arch construction van-type hydraulic trestle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221052358U (en) |
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2023
- 2023-08-30 CN CN202322343065.3U patent/CN221052358U/en active Active
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