阅读说明：本技术 一种便于救生的自行式台阶栈桥 (Self-propelled step landing stage convenient to lifesaving ) 是由 张维颂 毛成宝 郑怀臣 粟俊杰 段长林 于 2021-08-20 设计创作，主要内容包括：本发明公开了一种便于救生的自行式台阶栈桥,包括行走底座和倾斜布置的桥面,所述桥面安装于所述行走底座上,所述行走底座上设有密闭的救生舱,所述救生舱上设有舱门。本发明具有结构简单,使用方便,可提供救生场所,有利于提高施工效率,降低施工成本等优点。(The invention discloses a self-propelled step trestle convenient for lifesaving, which comprises a walking base and a bridge floor which is obliquely arranged, wherein the bridge floor is installed on the walking base, a closed lifesaving cabin is arranged on the walking base, and a cabin door is arranged on the lifesaving cabin. The invention has the advantages of simple structure, convenient use, capability of providing a lifesaving place, contribution to improving the construction efficiency, reduction of the construction cost and the like.)

1. The utility model provides a self-propelled step landing stage convenient to lifesaving which characterized in that: the escape capsule comprises a walking base (1) and a bridge deck (2) which is obliquely arranged, wherein the bridge deck (2) is installed on the walking base (1), a closed escape capsule (5) is arranged on the walking base (1), and a capsule door (51) is arranged on the escape capsule.

2. A self-propelled step trestle convenient for life saving according to claim 1, characterised in that: bridge floor (2) are including front axle (21) and rear axle (22), front axle (21) with rear axle (22) all with walking base (1) is articulated, be equipped with on walking base (1) and be used for driving front axle (21) luffing motion front axle swing driving piece (3) and be used for driving rear axle (22) luffing motion rear axle swing driving piece (4).

3. A self-propelled step trestle convenient for life saving according to claim 2, characterised in that: walking base (1) include running gear (11) and rotate support (12) of being connected with running gear (11), be equipped with flexible landing leg (13) on support (12), front axle swing driving piece (3) with rear axle swing driving piece (4) are all located on support (12).

4. A self-propelled step trestle convenient for life saving according to claim 3, characterised in that: the support (12) is provided with a transition bridge (14) between the front axle (21) and the rear axle (22), and the front axle (21) and the rear axle (22) are hinged with the transition bridge (14).

5. A self-propelled step trestle convenient for life saving according to claim 3, characterised in that: the travelling mechanism (11) is a crawler mechanism.

6. A self-propelled step trestle convenient for life saving according to claim 3, characterised in that: the travelling mechanism (11) is a tire type mechanism.

7. A self-propelled step trestle convenient for life saving according to claim 3, characterised in that: the walking mechanism (11) is a walking mechanism.

8. A self-propelled stepped trestle convenient for life saving according to any of claims 2 to 7, characterised in that: the front axle swing driving piece (3) and the rear axle swing driving piece (4) are both oil cylinders, one end of each oil cylinder is hinged with the walking base (1), and the other end of each oil cylinder is hinged with the front axle (21); or the other end of the oil cylinder is hinged with the rear axle (22).

Technical Field

The invention relates to tunnel construction equipment, in particular to a self-propelled step trestle convenient for lifesaving.

Background

The step excavation method is used as a tunnel construction process with the excavation speed second to that of a full-section excavation method, is widely applied to the tunnel excavation construction process, and is characterized in that: the tunnel is divided into more than two steps (including two steps, the same below) according to the designed section to form more than two working faces, and the tunnel is excavated step by step.

During the step excavation construction, a gentle slope is usually laid between an upper step and a lower step and between the lower step and the bottom of the tunnel by using muck, so that the construction is convenient for operators and construction machinery to construct on an upper working face. Therefore, as the tunnel is continuously tunneled and the steps are continuously advanced, the slope is continuously laid forwards. When the dregs slope of the lower step is laid, there are some adverse effects: firstly, construction machinery such as an excavator and the like is required to be occupied, and construction of other working faces is influenced; secondly, the residue soil laying area cannot be constructed; thirdly, when the excavation advances, the slope muck still needs to be continuously cleaned, and the subsequent inverted arch construction is influenced. Therefore, when the step excavation method is used for construction, the laid muck slope increases the construction cost and slows down the construction progress.

According to the existing trestle, the main beam is horizontally arranged, construction machinery passes through the main beam, and construction of the area below the main beam is not affected, so that construction efficiency is improved. The two ends of the main beam are respectively supported by the travelling wheels and the telescopic supporting legs and are provided with the travelling bogie in a matched mode, the telescopic supporting legs are also arranged on the travelling bogie, and the walking is realized in a stepping mode through the matching of the telescopic supporting legs and the travelling bogie of the bridge floor. The existing trestle cannot be applied to step excavation construction.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a self-propelled step trestle convenient for lifesaving, which is simple in structure, convenient to use, beneficial to improving the construction efficiency and reducing the construction cost.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a self-propelled step landing stage convenient to lifesaving, includes walking base and the bridge floor of slope arrangement, the bridge floor install in on the walking base, be equipped with inclosed survival capsule on the walking base, be equipped with the hatch door on the survival capsule.

As a further improvement of the above technical solution: the bridge floor includes front axle and rear axle, the front axle with the rear axle all with the walking base is articulated, be equipped with on the walking base and be used for driving front axle luffing motion's front axle swing driving piece and be used for driving rear axle luffing motion's rear axle swing driving piece.

As a further improvement of the above technical solution: the walking base comprises a walking mechanism and a support rotatably connected with the walking mechanism, telescopic supporting legs are arranged on the support, and the front axle swinging driving piece and the rear axle swinging driving piece are arranged on the support.

As a further improvement of the above technical solution: the bracket is provided with a transition bridge between the front axle and the rear axle, and the front axle and the rear axle are both hinged with the transition bridge.

As a further improvement of the above technical solution: the walking mechanism is a crawler mechanism.

As a further improvement of the above technical solution: the running mechanism is a tire type mechanism.

As a further improvement of the above technical solution: the walking mechanism is a walking mechanism.

As a further improvement of the above technical solution: the front axle swing driving piece and the rear axle swing driving piece are both oil cylinders, one end of each oil cylinder is hinged with the walking base, and the other end of each oil cylinder is hinged with the front axle; or the other end of the oil cylinder is hinged with the rear axle.

Compared with the prior art, the invention has the advantages that: the self-propelled step trestle convenient for lifesaving disclosed by the invention has the advantages that when the step excavation method is used for construction, the obliquely arranged bridge floor can replace a slope paved by using muck, so that the muck slope does not need to be paved, the construction from an operator and construction machinery to an upper operation surface through the bridge floor is facilitated, along with the continuous tunneling of a tunnel and the continuous forward movement of steps, the traveling base below the bridge floor can drive the bridge floor to move forward along the tunnel, the problems that the muck paving area cannot be constructed and the muck needs to be cleaned when the excavation moves forward are avoided, the structure is simple, the use is convenient, the construction efficiency is improved, and the construction cost is reduced; the walking base is provided with the rescue capsule with the capsule door, when sudden accidents (such as collapse, water surge and the like) occur in the tunnel, an operator can open the capsule door to enter the rescue capsule and then close the capsule door, so that the operator is in a relatively safe closed space to wait for rescue, and the rescue capsule is prevented from being buried and submerged; meanwhile, the rescue capsule is arranged on the walking base, the space on the walking base is utilized, the space in the tunnel is not additionally occupied, the rescue capsule can move along with the movement of the walking base, and the use convenience is good.

Drawings

Fig. 1 is a schematic front view structure diagram of a self-propelled step trestle for facilitating life saving according to a first embodiment of the invention.

Fig. 2 is a schematic top view of a self-propelled step trestle for life saving according to a first embodiment of the invention.

Fig. 3 is a schematic side view of a self-propelled step trestle for life saving according to a first embodiment of the invention.

Fig. 4 is a schematic structural view of a self-propelled step trestle convenient for life saving in the invention when moving transversely.

Fig. 5 is a schematic front view structure diagram of a self-propelled step trestle embodiment II convenient for life saving of the invention.

Fig. 6 is a partially enlarged view of fig. 1.

The reference numerals in the figures denote: 1. a traveling base; 11. a traveling mechanism; 12. a support; 13. a telescopic leg; 14. a transition bridge; 2. a bridge deck; 21. a front axle; 22. a rear axle; 3. a front axle swing drive; 4. a rear axle swing drive; 5. a rescue capsule; 51. a hatch door.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples of the specification.

Example one

Fig. 1 to 5 show an embodiment of a self-propelled step trestle convenient for lifesaving of the invention, the self-propelled step trestle convenient for lifesaving of the embodiment comprises a walking base 1 and a bridge floor 2 which is obliquely arranged, the bridge floor 2 is installed on the walking base 1, the walking base 1 is provided with a closed lifesaving cabin 5, and the lifesaving cabin 5 is provided with a cabin door 51. The structure of the bridge deck 2 can be the same as that of the existing trestle, and is not described again.

This self-propelled step landing stage convenient to lifesaving, when the construction of step excavation method, the slope that utilizes dregs to lay can be replaced to the bridge floor 2 that the slope was arranged, thereby need not to lay dregs slope, make things convenient for operation personnel and construction machinery to pass through bridge floor 2 to the construction of upper portion operation face, along with the continuous tunnelling in tunnel, the continuous antedisplacement of step, walking base 1 of bridge floor 2 below can drive bridge floor 2 and advance along the tunnel, avoided dregs to lay the regional unable problem of being under construction, and need clear up the dregs when the excavation advances, moreover, the steam generator is simple in structure, high durability and convenient use, and is favorable to improving the efficiency of construction, and the construction cost is reduced. The problems of mutual restriction of site occupation of construction organization and safety facilities in the tunnel, cyclic utilization and orderly access of materials, operating personnel and mechanical equipment in the limited space in the tunnel, occupation of the limited space due to arrangement of large-scale safety facilities, particularly on the tunnel face, more complex construction and no scheme for coordinating the safety facilities and the site space in the tunnel exist at present. The invention is provided with the rescue capsule 5 with a capsule door on the walking base 1 (specifically on the bracket 12), when sudden accidents (such as collapse, water surge and the like) occur in the tunnel, an operator can open the capsule door 51 to enter the rescue capsule 5 and then close the capsule door 51, so that the operator is in a relatively safe closed space to wait for rescue, and is prevented from being buried and submerged, and food, drinking water, communication equipment, a self-rescue tool, oxygen production equipment or oxygen storage equipment can be placed in the rescue capsule 5, thereby ensuring the survival needs of the operator; meanwhile, the rescue capsule is arranged on the walking base 1, the space on the walking base 1 is utilized, the space in the tunnel is not additionally occupied, the rescue capsule can move along with the movement of the walking base 1, and the use convenience is good.

Further, in this embodiment, the bridge deck 2 includes a front axle 21 and a rear axle 22, the front axle 21 and the rear axle 22 are both hinged to the walking base 1, and the walking base 1 is provided with a front axle swinging driving member 3 for driving the front axle 21 to swing up and down and a rear axle swinging driving member 4 for driving the rear axle 22 to swing up and down. Can drive front axle 21, rear axle 22 luffing motion through front axle swing driving piece 3, rear axle swing driving piece 4, and then adjust front axle 21, rear axle 22's inclination, adapt to the not step of co-altitude in the tunnel better, it is more convenient to use. Wherein the heading direction of the tunnel is taken as the front.

Further, in this embodiment, the traveling base 1 includes a traveling mechanism 11 and a support 12 rotatably connected to the traveling mechanism 11 (for example, the support may be rotatably connected through a slewing bearing, etc.), the support 12 is provided with telescopic legs 13 (for example, the support is telescopic through a hydraulic cylinder, etc.), and the front axle swing driving member 3 and the rear axle swing driving member 4 are both disposed on the support 12. When the trestle passes the vehicle, the telescopic supporting legs 13 on the support 12 extend out, the walking mechanism 11 rises and is not contacted with the ground, and the telescopic supporting legs 13 bear the load, so that the stability and the reliability are better; when the trestle needs to move back and forth, the telescopic supporting legs 13 retract to be not in contact with the ground so as to reduce the resistance during walking, and the walking mechanism 11 drives the bridge deck 2 to move back and forth; if the trestle needs to move left and right in the tunnel (or along the width direction of the tunnel), the telescopic supporting legs 13 extend out, the travelling mechanism 11 rises and is not in contact with the ground, then the travelling mechanism 11 rotates 90 degrees relative to the support 12, finally the telescopic supporting legs 13 retract and are not in contact with the ground, the travelling mechanism 11 can drive the bridge deck 2 to move left and right, the use is very convenient and flexible in the limited space of the tunnel, and other machines are not needed.

In a preferred embodiment, the support 12 is provided with the transition bridge 14 between the front bridge 21 and the rear bridge 22, that is, the transition bridge 14 is used to reduce the gap between the front bridge 21 and the rear bridge 22, so that other construction machines can conveniently pass through the bridge deck 2, and the front bridge 21 and the rear bridge 22 are both hinged with the transition bridge 14.

In a preferred embodiment, the running gear 11 is a crawler belt. The crawler mechanism has large contact area with the ground, strong bearing capacity and good friction, and is suitable for various rugged grounds and softer grounds.

As a preferred embodiment, the front axle swing driving member 3 and the rear axle swing driving member 4 are both oil cylinders, one end of each oil cylinder is hinged with the walking base 1, and the other end of each oil cylinder is hinged with the front axle 21 or the rear axle 22. The front axle 21 and the rear axle 22 can be driven to swing up and down by the stretching of the oil cylinder, and the structure is simple and reliable.

Example two

Fig. 6 shows another embodiment of the self-propelled step trestle convenient for life saving of the present invention, and the self-propelled step trestle convenient for life saving of the present embodiment is basically the same as the first embodiment, except that: the traveling mechanism 11 is a tire type mechanism. Compared with a crawler-type mechanism, the tire-type mechanism has lower cost and higher flexibility.

EXAMPLE III

The self-propelled step trestle convenient for lifesaving of this embodiment is basically the same as the first embodiment or the second embodiment, and the difference lies in that: the walking mechanism 11 is a walking mechanism, and can also realize the front-back movement and the left-right movement of the whole trestle.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.