Emergency-avoidable telescopic tunnel excavating trolley

Abstract

The application discloses an emergency-avoiding telescopic tunnel excavation trolley, which comprises a square trolley frame, the trolley frame can be telescoped in the width direction and the height direction of a tunnel, the top surface of the trolley frame is provided with a top-sealing steel cushion plate, the top-sealing steel cushion plate closes the top surface of the trolley frame, the side surface of the trolley frame towards the two sides of the tunnel is respectively provided with a stepped steel plate platform, the stepped steel plate platform can stabilize the left and right side surfaces of the trolley frame in a horizontal state or a closed and contracted state, the side surface of the trolley frame towards the tunnel face is provided with a telescopic supporting and retaining structure, the supporting and retaining structure closes the front side of the trolley frame in a contracted state, the bottom of the trolley frame is provided with a walking supporting structure, and the trolley frame is internally provided with a survival guarantee article supply chamber, an oxygen storage and supply chamber and an electronic alarm system bin; the trolley can provide necessary survival refuge space for the construction personnel near the tunnel face in the case that a sudden accident occurs in the tunnel construction, and can improve the survival probability of the trapped personnel.

Description

TECHNICAL FIELD

[0001] The present application relates to a lifesaving device for tunnel excavation accidents, in particular to a telescopic tunnel excavation jumbo capable of emergency escape. BACKGROUND

[0002] Since the tunnel belongs to underground space structure, its construction is difficult, and the construction risk is prominent, especially when the tunnel surrounding rock is poor or passes through the unfavorable geological section, which is prone to sudden accidents. Common tunnel construction accidents include collapse, roof fall, sudden mud gushing and the like, which may cause construction workers to be buried or trapped, thereby posing a great threat to their life safety. In view of the above situation, the current countermeasures are to arrange escape pipes in the tunnel, aiming to let construction workers evacuate from the vicinity of the working face to the tunnel secondary lining through the escape pipes. However, since the escape pipes occupy the limited construction space of the tunnel, they have great interference to the tunnel construction, and the construction site is rarely arranged according to the requirements. In addition, the escape pipes themselves have obvious defects, and the pipes arranged at the excavation step grading and inverted arch have obvious inflection points, and the pipes are prone to be blocked in accidents, and can play a very limited role in accidents such as tunnel closure.

[0003] At the same time, with the change of the tunnel surrounding rock, there is a situation that the tunnel excavation jumbo is temporarily not needed at the working face due to the change of the tunnel excavation method during the tunnel construction, and there is no spare space in the tunnel for storing the excavation jumbo. At this time, since the existing tunnel excavation jumbo is mostly a rigid frame structure, the excavation jumbo often has to be forced to be divided into several small pieces and transported out of the tunnel in batches. After that, when the excavation jumbo is needed again in the subsequent construction, the excavation jumbo has to be reassembled. The above process is time-consuming and laborious, and has obvious disadvantages.

[0004] It can be seen that the existing tunnel construction has obvious problems such as insufficient response ability to sudden accidents in tunnel construction, the safety of construction workers in the tunnel cannot be effectively guaranteed, and the equipment deployment process of the excavation jumbo in the tunnel is extremely cumbersome. In view of the above considerations, it has become a problem to be solved in the engineering field to study a telescopic tunnel excavation jumbo capable of emergency escape for construction workers near the working face. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a telescopic tunnel excavation jumbo capable of emergency escape, which can provide necessary survival shelter space for construction workers near the working face in the case of sudden accidents in tunnel construction, can improve the survival probability of trapped personnel, and the jumbo can freely enter and exit the tunnel during tunnel construction.

[0006] The purpose of the present application is achieved by the following technical scheme:

[0007] The utility model provides an emergency evacuation telescopic tunnel excavation trolley, including square trolley frame, the trolley frame can telescopic in the tunnel width direction and height direction, the trolley frame top surface is equipped with the steel backing plate of closing, the steel backing plate closes trolley frame top surface, the trolley frame side towards the tunnel two sides is equipped with the step steel plate platform respectively, the step steel plate platform can stabilize the left and right side of trolley frame in horizontal state or closed shrink state, the trolley frame side towards the tunnel face is equipped with telescopic retaining structure, the retaining structure closes the front side of trolley frame in shrink state, the trolley frame bottom is equipped with walking support structure, the trolley frame is equipped with survival guarantee article supply room, oxygen storage supply room and electronic alarm system warehouse.

[0008] Further, the trolley frame is composed of two frame units in the tunnel width direction, the frame unit is inverted L type on the tunnel section, the two inverted L type frame units are opposite in opening, the horizontal part of the two inverted L type frame units is connected by an automatic telescopic rod, the steel backing plate is two and is arranged on the horizontal part of the two inverted L type frame units respectively, one of the steel backing plates is a hollow structure and its opening side towards the other steel backing plate, the other steel backing plate is connected with a steel slide plate that can be inserted into the steel backing plate with hollow structure from the opening, the retaining structure is two groups and is fixed on the two inverted L type frame units respectively, the walking support structure is two groups and is arranged on the bottom of the two inverted L type frame units respectively, and the walking support structure includes a walking structure that can rotate within 0-90 DEG.

[0009] Further, the vertical part of the inverted L type frame unit includes three telescopic slide groove vertical rods, the three slide groove vertical rods are vertically arranged uniformly along the tunnel length direction, the middle and lower parts of the three slide groove vertical rods are connected by two horizontally arranged longitudinal steel cross beams, the horizontal part of the inverted L type frame unit is a day-shaped frame in the tunnel length direction, the lower part of one side of the day-shaped frame is fixed on the top of the three slide groove vertical rods, the automatic telescopic rod is three and one end of the automatic telescopic rod is connected on the other side of the day-shaped frame respectively, the automatic telescopic rod is a telescopic jack, the telescopic jack is connected with the oil pipe of the jack hydraulic oil pump system warehouse, the jack hydraulic oil pump system warehouse is arranged in the trolley frame, and the lower side of the day-shaped frame and the upper end of the slide groove vertical rod are inclinedly provided with an inclined brace.

[0010] Further, the chute column rod comprises a lower hollow column, a middle channel steel column, an upper I-shaped steel column and a large-stroke jack, the lower end of the middle channel steel column is fixedly connected with the upper end of the lower hollow column, the lower end of the upper I-shaped steel column is partially located in the middle channel steel column and partially located outside the middle channel steel column, the lower end of the oil cylinder of the large-stroke jack is fixed in the lower hollow column, the rod body of the large-stroke jack is three and arranged in an isosceles triangle in the transverse section, two rod bodies are located in the middle channel steel column and the other rod body is located outside the middle channel steel column, the top ends of the three rod bodies are connected with the bottom end of the upper I-shaped steel column, and the large-stroke jack is connected with the oil pipe of the jack hydraulic oil pump system bin.

[0011] Further, four stepped steel plate platforms are arranged on the vertical part of the inverted L-shaped frame unit towards the tunnel side, the four stepped steel plate platforms are arranged in two rows in an equal division manner, the two ends of one side of the stepped steel plate platforms in the lower row are hingedly connected to the adjacent two middle channel steel columns through hinged shafts, one end of the two lower swing arms is hingedly connected to the middle part of the two ends of the stepped steel plate platforms in the lower row and the other end is slidably arranged on the lower end of the middle channel steel column through a downward pulling sliding block structure, the two ends of one side of the stepped steel plate platforms in the upper row are hingedly connected to the upper ends of the adjacent two middle channel steel columns or are hingedly connected to the adjacent two upper I-shaped steel columns through hinged shafts, one end of the two upper swing arms is hingedly connected to the middle part of the two ends of the stepped steel plate platforms in the upper row and the other end is slidably arranged on the middle part of the middle channel steel column through a downward pulling sliding block structure or is slidably arranged on the upper end of the upper I-shaped steel column through an upward pulling sliding block structure.

[0012] Further, the downward pulling sliding block structure comprises an embedded telescopic jack and an upright sliding block, the lower end of the oil cylinder of the embedded telescopic jack is fixed in the middle channel steel column, the top end of the rod body of the embedded telescopic jack is connected with the bottom end of the upright sliding block, the middle channel steel column is provided with a sliding groove for the sliding of the upright sliding block along the height direction thereof towards the tunnel side, the other end of the lower swing arm or the other end of the upper swing arm is hingedly connected to the upright sliding block, and the embedded telescopic jack is connected with the oil pipe of the jack hydraulic oil pump system bin.

[0013] Further, the upward pulling sliding block structure comprises an electric rope winding machine, a steel strand and an inverted sliding block, the electric rope winding machine is arranged in a steel box, the steel box is arranged on the top surface of the upper I-shaped steel column, the upper I-shaped steel column is provided with a sliding groove along the height direction thereof towards the tunnel side, the inverted sliding block is slidably arranged in the sliding groove, the top part of the inverted sliding block is connected with one end of the steel strand, the other end of the steel strand passes through the bottom surface of the steel box and is wound on the electric rope winding machine, and the other end of the upper swing arm is hingedly connected to the inverted sliding block.

[0014] Further, the support structure comprises a welded steel plate, a jack oil pump box, a plurality of three-stage telescopic jacks, a support steel beam and a grid roller shutter door, one side of the welded steel plate is fixed on the upper part of the inverted L-shaped frame unit, the jack oil pump box is fixed on the other side of the welded steel plate, the upper end of the oil cylinder of the plurality of three-stage telescopic jacks is fixedly connected to the bottom surface of the jack oil pump box, the lower end of the rod body is connected with the support steel beam, the support steel beam is arranged along the width direction of the tunnel, the plurality of three-stage telescopic jacks are uniformly and spacedly arranged between the jack oil pump box and the support steel beam, the upper end of the grid roller shutter door is fixed on the welded steel plate, and the lower end is connected with the support steel beam, and the plurality of three-stage telescopic jacks are connected in communication with the jack oil pump box through oil pipes.

[0015] Further, the trolley frame side away from the tunnel tunnel face is provided with a trolley rear end lifting structure, the trolley rear end lifting structure comprises two lifting platforms, the two lifting platforms are connected through an X-shaped hinged structure, the X-shaped hinged structure is formed by two connecting rods being hingedly connected in the middle, the two ends of the two connecting rods are respectively hingedly connected with the two ends of the two lifting platforms on the opposite sides, and the two ends of the two lifting platforms on the opposite sides are respectively supported by three-stage lifting jacks, the lower end of the three-stage lifting jack is fixed on the walking support structure, the three-stage lifting jack is connected with an oil pipe of a jack hydraulic oil pump system bin, and the jack hydraulic oil pump system bin is arranged in the trolley frame.

[0016] Further, the walking support structure comprises a support steel framework, the support steel framework comprises a plurality of n-shaped frameworks which are evenly spaced along the length direction of the tunnel, the middle part of the upper end of the two adjacent n-shaped frameworks is connected by a steel beam, the sliding chute column rod and the lower end of the three-stage lifting jack are fixed on the middle part of the steel beam, the two free ends of the lower part of the n-shaped framework are respectively provided with a short-stroke lifting jack which extends vertically downward, the free end of the rod body of the short-stroke lifting jack is connected to the middle part of a disc-shaped enlarged rigid pad, the walking structure is arranged on the middle part of the steel beam, the walking structure comprises a roller power chamber, the steel beam is composed of two steel beam monomers, the opposite ends of the two steel beam monomers are respectively connected to the opposite sides of the roller power chamber, the sides away from each other of the two steel beam monomers are connected to the n-shaped frameworks, a gear type rotating flange is horizontally arranged in the roller power chamber, a hollow support rod is coaxially connected to the lower part of the rotating flange, a chain wheel is arranged in the support rod at the upper end and the lower end, respectively, a chain is sleeved on the two chain wheels, the upper chain wheel is sleeved on a driving shaft, the driving shaft is connected to the output shaft of a motor, the lower chain wheel is sleeved on a rotating shaft, the rotating shaft penetrates through the two sides of the support rod at the two ends, respectively, the rotating shaft at the two ends outside the support rod is respectively sleeved with a roller, the gear type rotating flange is a flange which is provided with a slave transmission gear in the circumferential direction, one end of the oil cylinder of the two direction adjusting jacks is respectively fixed on the upper surface of the two adjacent n-shaped frameworks, the free end of the rod body of the two direction adjusting jacks is provided with a master transmission gear along the length direction thereof, the rod bodies of the two direction adjusting jacks extend into the roller power chamber and are respectively located on the opposite sides of the gear type rotating flange, the master transmission gear is engaged with the slave transmission gear, the middle part of the n-shaped framework is provided with a drill rod power chamber, the drill rod power chamber is provided with a drill rod which extends vertically downward, the drill rod power chamber is provided with a driving mechanism which drives the drill rod to rotate, the short-stroke jack and the direction adjusting jack are respectively connected to the oil pipe of the jack hydraulic oil pump system bin.

[0017] Further, the survival guarantee article supply chamber, the oxygen storage supply chamber, the jack hydraulic oil pump system chamber and the electronic alarm system chamber are right-angled trapezoidal on the tunnel section, two right-angled sides are respectively fixed on the vertical part and the horizontal part of the inverted L-shaped frame unit, the survival guarantee article supply chamber, the oxygen storage supply chamber, the jack hydraulic oil pump system chamber and the electronic alarm system chamber are provided with doors on the inclined surface, the survival guarantee article supply chamber and the oxygen storage supply chamber are provided with electric flip type steel doors on the bottom surface, the survival guarantee article supply chamber is placed with survival guarantee articles, one end of a rope is connected with the survival guarantee articles, and the other end is fixed on the inner side of the electric flip type steel door, the oxygen storage supply chamber is provided with at least two groups of oxygen tanks, a plurality of oxygen covers are connected with the two oxygen tanks through pipelines respectively, the pipelines are provided with switches, the oxygen covers are hung on the inner side of the electric flip type steel door, the electronic alarm system chamber is provided with a storage battery and an accident alarm controller, the storage battery supplies power for the trolley, the accident alarm controller is electrically connected with a tunnel entrance alarm, the bottom surface of the electronic alarm system chamber is provided with an illuminating lamp, the trolley is provided with a plurality of risk avoidance control switches, and the risk avoidance control switches are connected with the jack balance valve, the three-stage telescopic jack, the roller shutter door and the accident alarm controller in the hydraulic oil pump system chamber respectively.

[0018] The beneficial effects of the present application are:

[0019] The emergency risk avoidance telescopic tunnel excavation trolley can be deformed, has an auxiliary construction state and an emergency refuge state, can provide a construction platform function required by a construction process such as tunnel face excavation and support during normal tunnel construction, and can provide a relatively reliable emergency refuge place for construction workers near the tunnel face in the event of a tunnel accident, so that the personnel safety guarantee capacity in the event of a construction accident is greatly improved without affecting normal tunnel construction, and in addition, the tunnel excavation trolley in the auxiliary construction state can drive away from the tunnel through the self-provided walking support structure, so as to facilitate flexible allocation of equipment in the tunnel during construction.

[0020] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification and claims, in some degree of certainty, and in some degree of certainty, will be apparent to those skilled in the art based on the study of the following, or can be taught from the practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the following specification and claims. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings, in which:

[0022] Figure 1 It is a structural schematic diagram of the present application.

[0023] Figure 2 For Figure 1 The schematic diagram of the middle trolley frame structure.

[0024] Figure 3 For Figure 1 The schematic diagram of another structure of the middle trolley frame.

[0025] Figure 4 For Figure 2 The schematic diagram of the middle slide chute column rod structure.

[0026] Figure 5 For Figure 2 The schematic diagram of the structure of the pull-down slide block structure.

[0027] Figure 6 For Figure 2 The schematic diagram of the structure of the pull-up slide block structure.

[0028] Figure 7 For Figure 1 The schematic diagram of the arrangement of the survival guarantee article supply room, the oxygen storage supply room, the electronic alarm system warehouse or the jack hydraulic oil pump system warehouse on the trolley frame.

[0029] Figure 8 For Figure 1 The schematic diagram of the structure of the supporting structure.

[0030] Figure 9 For Figure 1 The schematic diagram of the structure of the trolley rear end lifting structure.

[0031] Figure 10 For Figure 1 The schematic diagram of the structure of the walking support structure.

[0032] Figure 11 For Figure 10 The schematic diagram of the structure of the walking structure.

[0033] Figures 12-16 The schematic diagram of the change process of the trolley from the auxiliary construction state to the emergency refuge state.

[0034] Figure 17 The schematic diagram of the connection structure of the capping steel backing plate and the steel slide plate. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present application, and are not intended to limit the protection scope of the present application.

[0036] As Figures 1-17As shown, an emergency escape telescopic tunnel excavation trolley includes a square trolley frame 1 made of steel, which can be telescopic in the tunnel width direction and height direction. The top surface of the trolley frame 1 is provided with a top sealing steel pad 9, on which construction personnel can work, and construction materials and tools can be placed. The top sealing steel pad 9 closes the top surface of the trolley frame 1 in the retracted and expanded states, which can prevent soil and falling rocks on the tunnel top surface from entering the trolley frame, and protect the people inside the trolley frame. The trolley frame 1 side surface towards the tunnel side surface is respectively provided with a stepped steel plate platform 16, which can stabilize the left and right side surfaces of the trolley frame 1 in the horizontal state or closed retracted state. When the stepped steel plate platform is in the horizontal state, construction personnel can stand on it to perform construction on the tunnel side wall. When the stepped steel plate platform is in the closed retracted state of the trolley frame left and right side surfaces, it can prevent soil and falling rocks from entering the trolley frame from the tunnel side surface, and protect the people inside the trolley frame. The trolley frame 1 side towards the tunnel working face is provided with a telescopic support structure 6, which closes the front side of the trolley frame 1 in the retracted state. This can prevent falling rocks and soil on the tunnel working face from entering the trolley frame. The bottom of the trolley frame 1 is provided with a walking support structure 8, which can walk when the trolley frame needs to be moved, and support the trolley frame when it is in the construction or emergency escape state. The trolley frame 1 is provided with a survival guarantee article supply room 2, an oxygen storage supply room 3, and an electronic alarm system warehouse 5. The survival guarantee article supply room stores survival guarantee articles, the oxygen storage supply room stores oxygen, and the electronic alarm system warehouse can alarm outside the tunnel when an emergency occurs in the tunnel. The excavation trolley is provided with a horizontal folding function, which has three main purposes. First, by horizontal folding, the horizontal space of the trolley frame is effectively reduced under the premise of ensuring the safety space of the construction personnel, thereby reducing the stress area of the soil acting on the excavation trolley, which is beneficial to the overall stability of the excavation trolley. Second, horizontal retraction provides necessary deformation space for the excavation trolley, ensuring that the trolley stepped steel plate platform 16 has enough space to fold. Third, the excavation trolley in the emergency escape state has a volume comparable to the soil pulling vehicle, which can pass through the lower part of the waterproof board trolley and the secondary lining formwork trolley, facilitating the scheduling of construction machinery during tunnel construction.

[0037] The trolley can be telescopic and deformed, and has an auxiliary construction state and an emergency escape state. Through switching between the two working states, the trolley can provide a construction platform function required for construction processes such as tunnel working face excavation and support during normal tunnel construction, and can provide a relatively reliable emergency escape place for construction workers near the working face in the event of a tunnel emergency, thereby greatly improving the personnel safety guarantee capability in the event of a construction emergency without affecting normal tunnel construction.

[0038] The trolley frame 1 is composed of two frame units in the tunnel width direction, the frame units are inverted L-shaped in the tunnel section, the openings of the two inverted L-shaped frame units are opposite, the horizontal parts of the two inverted L-shaped frame units are connected by automatic telescopic rods, the two top sealing steel pads 9 are arranged on the horizontal parts of the two inverted L-shaped frame units, one of the two top sealing steel pads 9 is a hollow structure and has an opening facing the other top sealing steel pad, the other top sealing steel pad 9 is connected with a steel sliding plate 95 which can be inserted into the top sealing steel pad with a hollow structure through the opening, the support structures 6 are two groups and are respectively fixed on the two inverted L-shaped frame units, the walking support structures 8 are two groups and are respectively arranged on the bottom of the two inverted L-shaped frame units, the walking support structure 8 comprises a walking structure which can rotate within 0-90°, when the automatic telescopic rod is contracted, the walking structure is rotated by 90° and walks to realize the folding of the two frame units, the folding of the trolley frame in the tunnel width direction is realized, in the auxiliary construction state, the steel sliding plate 95 is between the two top sealing steel pads and serves as a top sealing steel plate of the middle part of the excavation trolley; when the state is changed to the emergency state, with the folding of the left and right trolley frame units, the steel sliding plate slides into the hollow top sealing steel pad, the two top sealing steel pads are folded to realize the sealing of the top of the excavation trolley.

[0039] The jacks of the present application all comprise a cylinder and a rod body, and the connection mode is the prior art.

[0040] The vertical part of the inverted L-shaped frame unit comprises three telescopic sliding groove vertical rods 10, the three sliding groove vertical rods 10 are vertically arranged in the tunnel length direction and are uniformly spaced, the middle and lower parts of the three sliding groove vertical rods 10 are connected by two horizontally arranged longitudinal steel cross beams 11, the horizontal part of the inverted L-shaped frame unit is a day-shaped frame 12 in the tunnel length direction, the lower part of one side of the day-shaped frame 12 is fixed on the top of the three sliding groove vertical rods 10, the automatic telescopic rods are three and one end of each is connected on the other side of the day-shaped frame 12, the automatic telescopic rod is a telescopic jack 13, the telescopic jack 13 is connected with the oil pipe of the jack hydraulic oil pump system warehouse 4, the jack hydraulic oil pump system warehouse 4 is arranged in the trolley frame 1, an inclined brace 14 is arranged between the lower side of the day-shaped frame 12 and the upper end of the sliding groove vertical rod 10, the inclined brace 14 is arranged to increase the stability of the trolley frame 1 so that it can bear greater pressure, the three sliding groove vertical rods, the three telescopic jacks and the three inclined braces are respectively arranged on both ends and the middle of the day-shaped frame in the tunnel width direction, one end of the cylinder of the telescopic jack is fixed on the lower side of one frame unit and one end of the rod body is fixed on the lower side of the other frame unit.

[0041] The chute column rod 10 comprises a lower hollow column 101, a middle channel steel column 102, an upper I-beam column 103 and a large-stroke jack 104. The lower end of the middle channel steel column 102 is fixedly connected with the upper end of the lower hollow column 101. The lower end of the upper I-beam column 103 is partially located in the middle channel steel column 102 and partially located outside the middle channel steel column 102. The lower end of the oil cylinder of the large-stroke jack 104 is fixed in the lower hollow column 101. The rod body of the large-stroke jack 104 is in an isosceles triangle arrangement in the transverse section and comprises three rod bodies. Two rod bodies are located in the middle channel steel column 102 and the other rod body is located outside the middle channel steel column 102. The top ends of the three rod bodies are connected with the bottom end of the upper I-beam column 103. The large-stroke jack 104 is connected with the oil pipe of the jack hydraulic oil pump system bin 4. The extension and retraction of the large-stroke jack realizes the sliding of the upper I-beam column relative to the middle channel steel column and thus realizes the extension and retraction of the chute column rod. The chute column rod has very high strength.

[0042] The vertical part of the inverted L-shaped frame unit is provided with four stepped steel plate platforms 16 on the side of the tunnel side. The four stepped steel plate platforms 16 are equally divided and arranged in two rows. The stepped steel plate platforms 16 in the lower row are hingedly connected with the adjacent two middle channel steel columns 102 through the hinge shafts 15 at the two ends of one side. The two lower swing arms 17 are hingedly connected with the middle portions of the two ends of the stepped steel plate platforms 16 in the lower row at one end and are slidably arranged on the lower ends of the middle channel steel columns 102 through the lower pull type sliding block structures 20 at the other end. The stepped steel plate platforms 16 in the upper row are hingedly connected with the upper ends of the adjacent two middle channel steel columns 102 through the hinge shafts 15 at the two ends of one side or are hingedly connected with the adjacent two upper I-beam columns 103 through the hinge shafts 16. The two upper swing arms 19 are hingedly connected with the middle portions of the two ends of the stepped steel plate platforms 16 in the upper row at one end and are slidably arranged on the middle portions of the middle channel steel columns 102 through the lower pull type sliding block structures 20 at the other end or are slidably arranged on the upper ends of the upper I-beam columns 103 through the upper lifting type sliding block structures 18. As shown in Figure 2 When the stepped steel plate platforms in the lower row are connected with the lower ends of the middle channel steel columns through the lower swing arms and the lower pull type sliding block structures and the stepped steel plate platforms in the upper row are connected with the upper ends of the upper I-beam columns through the upper swing arms and the upper lifting type sliding block structures, the trolley is suitable for the highway tunnel with relatively flat tunnel section. Figure 3 When the stepped steel plate platforms in the lower row are connected with the lower ends of the middle channel steel columns through the lower swing arms and the lower pull type sliding block structures and the stepped steel plate platforms in the upper row are connected with the middle channel steel columns through the upper swing arms and the lower pull type sliding block structures, the trolley is suitable for the railway tunnel with relatively small height-width ratio of tunnel section. The width of the stepped steel plate platforms in the lower row is greater than that of the stepped steel plate platforms in the upper row. The stepped steel plate platforms in the upper row and the top surface of the trolley form three steps of the trolley, which are used for the construction of the tunnel side at different heights.

[0043] The pull-down slider structure 20 comprises an inner telescopic jack 201 and an upright slider 202. The lower end of the oil cylinder of the inner telescopic jack 201 is fixed in the middle channel steel column 102, and the top end of the rod body is connected with the bottom end of the upright slider 202. The middle channel steel column 102 is provided with a sliding groove along the height direction thereof towards the side of the tunnel, and the other end of the lower rocker arm 17 or the other end of the upper rocker arm 19 is hinged to the upright slider 202. The inner telescopic jack 201 is connected with the oil pipe of the jack hydraulic oil pump system bin 4. The inner telescopic jack realizes the close contact of the stepped steel plate platform with the left side or right side of the trolley frame or the stable horizontal state of the stepped steel plate platform.

[0044] The pull-up slider structure 18 comprises an electric rope winding machine 181, a steel strand 182 and an inverted slider 183. The electric rope winding machine 181 is arranged in a steel box, and the steel box is arranged on the top surface of the upper I-shaped steel column 103. The upper I-shaped steel column 103 is provided with a sliding groove along the height direction thereof towards the side of the tunnel, and the inverted slider 183 is slidingly arranged in the sliding groove. The top of the inverted slider 183 is connected with one end of the steel strand 182, and the other end of the steel strand 182 penetrates through the bottom surface of the steel box and is wound on the electric rope winding machine 181. The other end of the upper rocker arm 19 is hinged to the inverted slider 183. The electric rope winding machine realizes the stable horizontal state of the stepped steel plate platform or the close contact of the stepped steel plate platform with the front side or rear side of the trolley frame.

[0045] The support structure 6 comprises a welded steel plate 61, a jack oil pump box 62, a plurality of tertiary telescopic jacks 63, a support steel beam 64 and a grid roller shutter door 65. One side of the welded steel plate 61 is fixed on the upper part of the inverted L-shaped frame unit, and the other side of the welded steel plate 61 is fixed on the jack oil pump box 62. The upper ends of the oil cylinders of the plurality of tertiary telescopic jacks 63 are fixedly connected to the bottom surface of the jack oil pump box 62, and the lower ends of the rod bodies are connected with the support steel beam 64. The support steel beam 64 is arranged along the width direction of the tunnel. The plurality of tertiary telescopic jacks 63 are uniformly and intervaliy arranged between the jack oil pump box 62 and the support steel beam 64. The upper end of the grid roller shutter door 65 is fixed on the welded steel plate 61, and the lower end is connected with the support steel beam 64. The plurality of tertiary telescopic jacks 63 are connected with the jack oil pump box 62 through the oil pipe. The grid roller shutter door 65 can prevent soil from entering the trolley frame 1. When the trolley is in the auxiliary construction state, the tertiary telescopic jacks are contracted, and the grid roller shutter door is rolled up, so that the tunnel face can be observed. When the trolley is in the emergency state, the tertiary telescopic jacks are elongated, and the grid roller shutter door is unfolded. The tertiary telescopic jack is a prior art.

[0046] The trolley frame 1 side away from the tunnel face is provided with a trolley rear end lifting structure 7, the trolley rear end lifting structure 7 includes two lifting platforms 72, the two lifting platforms 72 are connected through an X-shaped hinged structure 71, the X-shaped hinged structure 71 is formed by two connecting rods hingedly connected in the middle, the two ends of the two connecting rods are respectively hingedly connected with the two ends of the two lifting platforms 72 on the opposite sides, the two ends of the two lifting platforms on the opposite sides are respectively supported by three-stage lifting jacks 73, the lower end of the three-stage lifting jacks 73 is fixed on the walking support structure 8, the three-stage lifting jacks 73 are connected with the oil pipe of the jack hydraulic oil pump system warehouse 4, the jack hydraulic oil pump system warehouse 4 is arranged in the trolley frame 1, when the trolley frame is folded in the tunnel width direction, the two lifting platforms are folded under the action of the X-shaped hinged structure 71, when people, materials and construction tools are located on the lifting platform, they can easily get on the trolley steps through the lifting of the three-stage lifting jacks, preferably the two lifting platforms 72 are groove type and the upper two free ends thereof are outwardly folded to form flanges, the top of the three-stage lifting jacks 73 is connected with the bottom surface of the flange, two sealing steel pads 9 are respectively fixed on the two lifting platforms 72, one of the sealing steel pads 9 is a hollow structure and the side thereof facing the other sealing steel pad is open, the other sealing steel pad is connected with a steel sliding plate 95 which can be inserted into the sealing steel pad with a hollow structure from the opening.

[0047] The walking support structure 8 comprises a support steel framework, which comprises a plurality of n-shaped frameworks 81 evenly spaced along the length direction of the tunnel, the upper middle part of the adjacent two n-shaped frameworks 81 is connected by a steel beam 88, the sliding chute stand column 10 and the lower end of the three-stage lifting jack 73 are fixed on the middle part of the steel beam 88, the two free ends of the lower part of the n-shaped framework 81 are respectively provided with a short-stroke lifting jack 82 extending vertically downward, the free end of the rod body of the short-stroke lifting jack 82 is connected to the middle part of a disc-shaped enlarged rigid pad 83, the walking structure is arranged on the middle part of the steel beam, the walking structure comprises a roller power chamber 85, the steel beam 88 is composed of two steel beam monomers, the opposite ends of the two steel beam monomers are respectively connected to the opposite sides of the roller power chamber 85, the sides away from each other of the two steel beam monomers are connected to the n-shaped framework 81, a gear type rotary flange 89 is horizontally arranged in the roller power chamber 85, a hollow support rod 92 is coaxially connected to the lower part of the rotary flange 89, a chain wheel is arranged in the support rod 92, a chain 90 is driven on the two chain wheels, the upper chain wheel is sleeved on a driving shaft, the driving shaft is connected to the output shaft of an electric motor, the lower chain wheel is sleeved on a rotating shaft, the two ends of the rotating shaft are respectively penetrated through the two sides of the support rod 92, the two ends of the rotating shaft outside the support rod 92 are respectively sleeved with a roller 84, the gear type rotary flange 89 is a flange provided with a driven gear on the circumference, one end of the oil cylinder of the two direction adjusting jacks 93 is respectively fixed on the upper surface of the adjacent two n-shaped frameworks 81, the free end of the rod body of the two direction adjusting jacks 93 is provided with a main driving gear along the length direction thereof, the rod body of the two direction adjusting jacks 93 is inserted into the roller power chamber 85 and is respectively located on the opposite sides of the gear type rotary flange 89, the main driving gear is engaged with the driven gear, the middle part of the n-shaped framework 81 is provided with a drill rod power chamber 87, the lower part of the drill rod power chamber 87 is provided with a drill rod 86 extending vertically downward, the drill rod power chamber 87 is provided with a driving mechanism for driving the drill rod 87 to rotate, the short-stroke jack 82 and the direction adjusting jack 93 are respectively connected to the oil pipe of the jack hydraulic oil pump system warehouse 4, the arrangement of the drill rod 86 can provide the excavation trolley with anti-slippage and anti-overturning force, when the trolley is in the auxiliary construction state, the short-stroke lifting jack 82 is elongated, the enlarged steel pad 83 is in contact with the ground, and the trolley can be stabilized; with the advancement of the tunnel face construction, the short-stroke lifting jack 82 is retracted when the trolley needs to travel, so that the roller 84 is in contact with the ground, at this time, the electric motor is actuated, the upper chain wheel drives the lower chain wheel to rotate through the chain 90, so as to realize the rolling of the rollers 84 at the two ends of the rotating shaft, and finally realize the travel of the trolley; when an emergency occurs in the tunnel excavation, the short-stroke lifting jack 82 is elongated and the direction adjusting jack 93 is elongated, since the main driving gear is engaged with the driven gear to realize the rotation of the rotary flange 89 by 90°, then the short-stroke lifting jack 82 is retracted, the roller 84 is in contact with the ground, and the electric motor is started again to realize the rolling of the roller, at the same time, the telescopic jack 13 is retracted to realize the contraction of the trolley frame in the width direction of the tunnel, finally, the short-stroke telescopic jack 82 is elongated, the enlarged steel pad 83 is in contact with the ground, and the drill rod 86 is drilled into the ground through the drill rod power chamber 87.

[0048] The survival supplies room 2, oxygen storage and supply room 3, hydraulic pump system compartment 4, and electronic alarm system compartment 5 are right-angled trapezoids in the tunnel cross-section. The two right-angled sides are fixed to the vertical and horizontal parts of the inverted L-shaped frame unit, respectively. Doors 32 are provided on the inclined surfaces of these rooms, allowing for routine equipment maintenance or emergency supply replacement. Electric motors are installed on the bottom surfaces of the survival supplies room 2 and oxygen storage and supply room 3. A flip-top steel door 33, an electric flip-top steel door, includes a servo motor and a steel door. One end of the steel door is connected to the survival supplies supply room 2 or the oxygen storage supply room 3 via a pivot. The pivot is connected to the output shaft of the servo motor. The servo motor switch is located on the upper I-beam column. The survival supplies supply room 2 contains survival supplies and has good water resistance. Survival supplies include bottled water, compressed biscuits, a first-aid kit, a flashlight, etc. One end of a rope 35 is connected to the survival supplies, and the other end is fixed to the electric... On the inner side of the flip-top steel door 33, trapped personnel can pull steel ropes to obtain necessary supplies from the survival supplies room as needed. The oxygen storage and supply room 3 is equipped with at least two sets of oxygen tanks, and several oxygen masks are connected to the two oxygen tanks through pipes. Switches are installed on the pipes. The oxygen masks are hung on the inner side of the electric flip-top steel door 33. The oxygen storage and supply room has good sealing and shock resistance. After the trapped personnel remove and put on the oxygen masks, they can turn on the switch to breathe. The electronic alarm system compartment 5 is equipped with a battery and an emergency alarm controller. The battery powers the trolley, and the emergency alarm controller is electrically connected to the tunnel entrance alarm. The bottom of the electronic alarm system compartment 5 is equipped with a lighting lamp 36. The electronic system compartment has extremely high sealing and insulation. The trolley is equipped with multiple safety control switches 74. The safety control switches 74 are connected to the jack balance valve, the three-stage telescopic jack 63, the mesh roller shutter door 65, the motor, and the emergency alarm controller in the hydraulic oil pump system compartment 4. Pressing the safety control switch causes the trolley to retract and controls the alarm outside the tunnel to sound through the alarm controller.

[0049] The method of using this excavation trolley is as follows:

[0050] 1. During the normal tunnel construction phase, the equipment serves as a construction platform for tunnel excavation, operating as an auxiliary construction device for the excavation trolley. Specifically, as follows... Figure 1 As shown (support structure 6 is in front, close to the excavation face; trolley rear lifting structure 7 is in the back); in addition, the capping steel pads are two pieces respectively set on the top surface of trolley frame 1 and trolley rear lifting structure (7), providing a plane space for personnel to stand and for items to be stacked.

[0051] 2. With the advancement of the tunnel face, the device advances itself by means of the walking support structure 8, and the specific process includes: during the excavation of the tunnel face, the short-range lifting jack 82 is extended, so that the enlarged steel pad 83 is closely attached to the ground, ensuring the stability of the device; after the completion of the tunnel excavation, the short-range lifting jack 82 is retracted, so that the enlarged steel pad 83 is lifted off the ground, the rollers 84 are in contact with the ground, and then the roller power chamber 85 drives the rollers 84 to rotate to realize the self-advancement of the device;

[0052] 3. During the construction process, the device assists personnel to get on and off the trolley by means of the trolley rear end lifting structure 7, and can also transport I-beams, small pipes, anchor rods and other objects onto the trolley, and the specific process is as follows: the three-stage lifting jack 73 is extended in three stages, when the three-stage lifting jack 73 is completely retracted, the lifting platform 72 is close to the ground, and personnel and objects can easily get on; then, with each extension of the three-stage lifting jack 73, the lifting platform 72 rises one step, and sequentially reaches the height of the lower, middle and upper three steps of the trolley, so as to provide personnel and objects to get on any one working platform;

[0053] 4. When a tunnel accident occurs, personnel working on the excavation trolley can quickly descend to the ground by means of the trolley rear end lifting structure 7, and start the excavation trolley refuge control switch 74 (the electronic alarm system warehouse also makes the alarm at the tunnel entrance through the alarm controller), so as to switch the excavation trolley from the excavation trolley auxiliary construction state to the excavation trolley emergency refuge state, and the process can be subdivided into the following steps:

[0054] 1) The rotating flange 89 of the walking support structure 8 drives the rollers 84 to realize 90-degree turning, and then the short-range lifting jack 82 is retracted, the rollers 84 on both sides are grounded and roll inward, giving the lower part of the excavation trolley an inward folding force; at the same time, the three groups of telescopic jacks 13 on the upper part of the excavation trolley are retracted, giving the upper part of the excavation trolley an inward folding force, and the above two forces cooperate with each other to make the left and right excavation trolleys fold, and the excavation trolley is switched from the auxiliary construction state to the emergency refuge state, as shown in Figure 12 、 13 At this time, the X-shaped hinge structure 73 on the trolley rear end lifting structure 7 rotates under the action of the folding force, and the trolley rear end lifting structure 7 is folded together; in addition, the steel sliding plate 95 is inserted into the hollow structure of the capping steel pad 9, and the capping steel pad 9 arranged on the top surface of the trolley frame 1 and the trolley rear end lifting structure 7 are folded together.

[0055] 2) After the trolley is folded, the short-stroke lifting jack 82 is extended, so that the expanded steel pad 83 is tightly pressed against the ground. Then the drill rod power chamber 87 is powered, and the drill rod 86 is driven into the ground to a certain depth to ensure the overall stability of the excavation trolley. At the same time, the upper lifting slide block structure 18 lifts the upper row of stepped steel plate platforms 16 to be in close contact with the excavation trolley, and the lower pulling slide block structure 20 pulls down the lower stepped steel plate platform 16 to be in close contact with the excavation trolley. The excavation trolley switches to emergency escape state II, as shown in Figure 14 . .

[0056] 3) The large-stroke jack 104 is retracted, so that the middle channel steel column 102 is folded with the upper I-beam column 103, and the excavation trolley is lowered by one step height. The excavation trolley switches to emergency escape state III, as shown in Figure 15 .

[0057] 4) The three-stage telescopic jack 63 of the support structure 6 is extended, driving the support steel beam 64 and the grid roller shutter door 65 to close the front end of the excavation trolley. The excavation trolley switches to emergency escape state IV, as shown in Figure 16 . At the same time, the trolley rear end lifting structure 7 is also lowered to the top of the lifting platform 72 to be flush with the day-shaped frame (12), which semi-closes the upper half of the rear end of the excavation trolley, while leaving a gap in the lower half for the trapped personnel to use. In addition, the illuminating lamp (36) on the bottom surface of the electronic alarm system bin (5) is automatically turned on to provide necessary illumination for the personnel.

[0058] 5) After the deformation is completed, the excavation trolley can block the soil impact from the front and both sides of the tunnel face, effectively preventing the construction personnel in the tunnel from directly bearing the impact of the soil and rock at the tunnel face. Thereafter, the construction personnel in the tunnel can determine whether to escape from the tunnel according to the tunnel accident situation. If it is possible to escape, they should escape from the tunnel first; if it is determined that there is a high risk of escape, they can enter the excavation trolley for safety. If they enter the excavation trolley for safety, they can further activate the safety device for safety, and then wait for external rescue, which specifically includes the following steps:

[0059] 1) The construction personnel enter the excavation trolley in the emergency escape state, and open the electric flip steel door 33 at the lower part of the survival guarantee article supply room 2 and the oxygen storage supply room 3.

[0060] 2) The trapped personnel take off the oxygen mask from the inside of the electric flip steel door 33 at the lower part of the oxygen storage supply room 3, put it on, and turn on the switch to supply oxygen for breathing.

[0061] 3) The trapped personnel obtain water, food, medical first aid, tools and other survival necessities from the survival guarantee article supply room 2 according to their needs. Thereafter, the trapped personnel rely on the protection of the excavation trolley to wait for external rescue.

[0062] In daily state, the construction team should update the emergency rescue materials of the life support goods supply room 2 and the oxygen storage supply room 3 through the door 32 regularly, and carry out daily maintenance and repair on the settings in the jack hydraulic oil pump system warehouse 4 and the electronic alarm system warehouse 5.

[0063] When the tunnel excavation method changes, the tunnel face temporarily does not need the tunnel excavation trolley, and there is no spare space in the tunnel to store the excavation trolley, the excavation trolley is switched to the emergency state three as shown in the above process. Figure 15 After that, the short-range lifting jack 82 is retracted, so that the enlarged steel pad 83 is lifted off the ground, the roller 84 is in contact with the ground, and then the roller power room 85 drives the roller 84 to rotate, and the excavation trolley drives to the outside of the hole at a constant speed. If an obstacle is encountered during this process, the roller 84 can be turned by the gear type rotating flange 89.

[0064] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should be covered in the scope of the claims of the present application.

Claims

1. An emergency-avoidable telescopic tunnel jumbo, characterized in that: The trolley frame (1) includes a square trolley frame (1) which can be telescopic in the tunnel width direction and height direction, the top surface of the trolley frame (1) is provided with a top sealing steel plate (9) which closes the top surface of the trolley frame (1), the side surface of the trolley frame (1) towards the two sides of the tunnel is respectively provided with a stepped steel plate platform (16) which can stabilize the left and right side surfaces of the trolley frame (1) in the horizontal state or the closed and telescopic state, the side of the trolley frame (1) towards the tunnel working face is provided with a telescopic support structure (6) which closes the front side of the trolley frame (1) in the closed and telescopic state, the bottom of the trolley frame (1) is provided with a walking support structure (8), and the trolley frame (1) is internally provided with a survival guarantee article supply room (2), an oxygen storage and supply room (3) and an electronic alarm system warehouse (5). The trolley frame (1) is composed of two frame units in the tunnel width direction, the frame unit is in the shape of inverted L in the tunnel section, the openings of the two inverted L-shaped frame units are opposite, the horizontal parts of the two inverted L-shaped frame units are connected by automatic telescopic rods, the top sealing steel plates (9) are two and are respectively arranged on the horizontal parts of the two inverted L-shaped frame units, one of the top sealing steel plates (9) is in a hollow structure and has an opening towards the other top sealing steel plate, the other top sealing steel plate (9) is connected with a steel sliding plate (95) which can be inserted into the top sealing steel plate with the hollow structure from the opening, the support structures (6) are two groups and are respectively fixed on the two inverted L-shaped frame units, the walking support structures (8) are two groups and are respectively arranged on the bottoms of the two inverted L-shaped frame units, and the walking support structures (8) include walking structures which can rotate within 0-90°. The support structure (6) includes a welded steel plate (61), a jack oil pump box (62), a plurality of three-stage telescopic jacks (63), a support steel beam (64) and a grid roller shutter door (65), one side of the welded steel plate (61) is fixed on the upper part of the inverted L-shaped frame unit, the jack oil pump box (62) is fixed on the other side of the welded steel plate (61), the oil cylinder upper ends of the plurality of three-stage telescopic jacks (63) are fixedly connected to the bottom surface of the jack oil pump box (62), the rod bodies lower ends are connected with the support steel beam (64), the support steel beam (64) is arranged along the tunnel width direction, the plurality of three-stage telescopic jacks (63) are uniformly and interval arranged between the jack oil pump box (62) and the support steel beam (64), the upper end of the grid roller shutter door (65) is fixed on the welded steel plate (61), the lower end is connected with the support steel beam (64), and the plurality of three-stage telescopic jacks (63) are connected with the jack oil pump box (62) through oil pipes. The vertical part of the inverted L-shaped frame unit includes three telescopic sliding groove vertical columns (10).

2. The emergency-avoidable telescopic tunnel jumbo of claim 1, wherein: Three chute vertical column rods (10) are vertically arranged at uniform intervals along the length direction of the tunnel, the middle and lower parts of the three chute vertical column rods (10) are connected by two horizontally arranged longitudinal steel beams (11), the horizontal part of the inverted L-shaped frame unit is a day-shaped frame (12) in the length direction of the tunnel, one side of the lower part of the day-shaped frame (12) is fixed on the top of the three chute vertical column rods (10), the automatic telescopic rods are three and one end of each is connected to the other side of the day-shaped frame (12), the automatic telescopic rods are telescopic jacks (13), the telescopic jacks (13) are connected to the oil pipe of the jack hydraulic oil pump system bin (4), the jack hydraulic oil pump system bin (4) is arranged in the trolley frame (1), and an inclined brace (14) is arranged between the lower side of the day-shaped frame (12) and the upper end of the chute vertical column rod (10).

3. The emergency evacuation retractable tunnel jumbo of claim 2, characterized in that: The chute vertical column rod (10) comprises a lower hollow column (101), a middle channel steel column (102), an upper I-shaped steel column (103) and a large-stroke jack (104), the lower end of the middle channel steel column (102) is fixedly connected to the upper end of the lower hollow column (101), and the lower end of the upper I-shaped steel column (103) is partially located in the middle channel steel column (102) and partially located outside the middle channel steel column (102), the lower end of the oil cylinder of the large-stroke jack (104) is fixed in the lower hollow column (101), the rod body of the large-stroke jack (104) is three and arranged in an isosceles triangle in the transverse section, two rod bodies are located in the middle channel steel column (102) and the other rod body is located outside the middle channel steel column (102), and the top ends of the three rod bodies are connected to the bottom end of the upper I-shaped steel column (103), and the large-stroke jack (104) is connected to the oil pipe of the jack hydraulic oil pump system bin (4).

4. The emergency evacuation retractable tunnel jumbo of claim 3, characterized in that: The vertical part of the inverted L-shaped frame unit is provided with four stepped steel plate platforms (16) facing the side of the tunnel, the four stepped steel plate platforms (16) are arranged in two rows in an equal division manner, the two ends of one side of the stepped steel plate platforms (16) in the lower row are hingedly connected to the adjacent two middle channel steel columns (102) through hinged shafts (15), one end of each of the two lower swing arms (17) is hingedly connected to the middle part of the two ends of the stepped steel plate platforms (16) in the lower row, and the other end of each of the two lower swing arms (17) is slidably arranged on the lower end of the middle channel steel column (102) through a lower pull type sliding block structure (20), the two ends of one side of the stepped steel plate platforms (16) in the upper row are hingedly connected to the upper ends of the adjacent two middle channel steel columns (102) or are hingedly connected to the adjacent two upper I-shaped steel columns (103) through hinged shafts, one end of each of the two upper swing arms (19) is hingedly connected to the middle part of the two ends of the stepped steel plate platforms (16) in the upper row, and the other end of each of the two upper swing arms (19) is slidably arranged on the middle part of the middle channel steel column (102) or is slidably arranged on the upper end of the upper I-shaped steel column (103) through an upper pull type sliding block structure (18).

5. The emergency evacuation retractable tunnel jumbo of claim 4, characterized in that: The lower pull slider structure (20) comprises an inner telescopic jack (201) and an upright slider (202), the lower end of the oil cylinder of the inner telescopic jack (201) is fixed in the middle channel steel column (102), the top end of the rod body is connected with the bottom end of the upright slider (202), the middle channel steel column (102) is provided with a sliding groove for the sliding of the upright slider (202) along the height direction thereof towards the side of the tunnel, the other end of the lower rocker arm (17) or the other end of the upper rocker arm (19) is hinged on the upright slider (202), and the inner telescopic jack (201) is connected with the oil pipe of the jack hydraulic oil pump system bin (4).

6. The emergency evacuation retractable tunnel jumbo of claim 4, wherein: The upper pull slider structure (18) comprises an electric rope winding machine (181), a steel strand (182) and an inverted slider (183), the electric rope winding machine (181) is arranged in a steel box, the steel box is arranged on the top surface of the upper I-shaped steel column (103), the upper I-shaped steel column (103) is provided with a sliding groove along the height direction thereof towards the side of the tunnel, the inverted slider (183) is slidably arranged in the sliding groove, the top of the inverted slider (183) is connected with one end of the steel strand (182), the other end of the steel strand (182) passes through the bottom surface of the steel box and is wound on the electric rope winding machine (181), and the other end of the upper rocker arm (19) is hinged on the inverted slider (183).

7. The emergency evacuation retractable tunnel jumbo of claim 1, wherein: The trolley frame (1) side away from the tunnel face is provided with a trolley rear end lifting structure (7), the trolley rear end lifting structure (7) comprises two lifting platforms (72), the two lifting platforms (72) are connected through an X-shaped hinge structure (71), the X-shaped hinge structure (71) is formed by two connecting rods hingedly connected in the middle, the two ends of the two connecting rods are respectively hingedly connected with the two ends of the two lifting platforms (72) on the opposite sides, and the two ends of the two lifting platforms on the opposite sides are respectively supported by three-stage lifting jacks (73), the lower end of the three-stage lifting jack (73) is fixed on the walking support structure (8), the three-stage lifting jack (73) is connected with the oil pipe of the jack hydraulic oil pump system bin (4), and the jack hydraulic oil pump system bin (4) is arranged in the trolley frame (1).

8. The emergency evacuation retractable tunnel jumbo of claim 2, wherein: The walking support structure (8) comprises a support steel framework, the support steel framework comprises several n-shaped frameworks (81) which are uniformly and spacedly arranged along the length direction of the tunnel, the middle part of the upper end of the two adjacent n-shaped frameworks (81) is connected by a steel beam (88), the slide chute stand column (10) and the lower end of the three-stage lifting jack (73) are fixed on the middle part of the steel beam (88), the two free ends of the lower part of the n-shaped framework (81) are respectively provided with a short-range lifting jack (82) which extends vertically downward, the rod body free end of the short-range lifting jack (82) is connected in the middle part of a disc-shaped expanded rigid pad (83), the walking structure is arranged on the middle part of the steel beam, the walking structure comprises a roller power chamber (85), the steel beam (88) is composed of two steel beam monomers, the opposite ends of the two steel beam monomers are respectively connected with the opposite sides of the roller power chamber (85), the opposite sides of the two steel beam monomers are connected with the n-shaped framework (81), a gear type rotary flange (89) is horizontally arranged in the roller power chamber (85), a hollow support rod (92) is coaxially connected to the lower part of the rotary flange (89), a chain wheel is arranged in the support rod (92) at the upper end and the lower end respectively, a chain (90) is driven on the two chain wheels, the upper chain wheel is sleeved on a driving shaft, the driving shaft is connected with a motor output shaft, the lower chain wheel is sleeved on a rotating shaft, the rotating shaft penetrates through the two sides of the support rod (92) at the two ends respectively, the rotating shafts outside the support rod (92) are respectively sleeved with rollers (84) at the two ends, the gear type rotary flange (89) is a flange which is provided with slave transmission teeth in the circumferential direction, one end of the oil cylinder of the two direction adjusting jacks (93) is respectively fixed on the upper surface of the two adjacent n-shaped frameworks (81), the main transmission teeth are arranged on the rod body free end of the two direction adjusting jacks (93) along the length direction, the rod bodies of the two direction adjusting jacks (93) penetrate into the roller power chamber (85) and are respectively located on the opposite sides of the gear type rotary flange (89), the main transmission teeth are engaged with the slave transmission teeth, the middle part of the n-shaped framework (81) is provided with a drill rod power chamber (87), the lower part of the drill rod power chamber (87) is provided with a drill rod (86) which extends vertically downward, the drill rod power chamber (87) is provided with a driving mechanism which drives the drill rod (87) to rotate, the short-range lifting jack (82) and the direction adjusting jack (93) are respectively connected with the oil pipe of the jack hydraulic oil pump system bin (4).

9. The emergency evacuation retractable tunnel jumbo of claim 2, wherein: The survival guarantee article supply chamber (2), the oxygen storage supply chamber (3), the jack hydraulic oil pump system warehouse (4) and the electronic alarm system warehouse (5) are right trapezoidal on the tunnel section, two right angles are fixed on the vertical part and the horizontal part of the inverted L-shaped frame unit respectively, the survival guarantee article supply chamber (2), the oxygen storage supply chamber (3), the jack hydraulic oil pump system warehouse (4) and the electronic alarm system warehouse (5) are provided with doors (32) on the inclined plane, the bottom surface of the survival guarantee article supply chamber (2) and the oxygen storage supply chamber (3) is provided with an electric flip type steel door (33), the survival guarantee article supply chamber (2) is placed with survival guarantee articles, one end of a rope (35) is connected with the survival guarantee articles, and the other end is fixed on the inner side of the electric flip type steel door (33), the oxygen storage supply chamber (3) is provided with at least two groups of oxygen tanks, a plurality of oxygen covers are connected with the two oxygen tanks through pipelines respectively, the pipelines are provided with switches, the oxygen covers are hung on the inner side of the electric flip type steel door (33), the electronic alarm system warehouse (5) is provided with a storage battery and an accident alarm controller, the storage battery is used for power supply of the trolley, the accident alarm controller is electrically connected with a tunnel mouth alarm, the bottom surface of the electronic alarm system warehouse (5) is provided with a lighting lamp (36), the trolley is provided with a plurality of risk control switches (74), the risk control switches (74) are connected with the jack balance valve, the three-stage telescopic jack (63), the grid roller shutter door (65) and the accident alarm controller in the hydraulic oil pump system warehouse (4) respectively.

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