Manual drilling and blasting protection trolley in TBM tunneling tunnel

Abstract

The invention discloses a manual drilling and blasting protection trolley in a TBM tunneling tunnel, relates to the technical field of tunnel construction equipment, and can solve the problem that manual drilling and blasting protection is difficult during TBM tunneling. The manual drilling and blasting protection trolley in the TBM tunneling tunnel comprises a trolley body and a top-to-top type air pressure energy discharging assembly, and the top-to-top type air pressure energy discharging assembly is connected with the trolley body in a sliding mode; comprising at least two supporting protection plate assemblies located on the two sides of a trolley body respectively and at least two sets of force transmission assemblies, and the two ends of the force transmission assemblies are connected to the supporting protection plate assemblies and the opposite jacking type air pressure energy discharging assemblies respectively. Comprising a locking mechanism, and the locking mechanism comprises a locking clamping rod assembly connected to an opposite jacking type air pressure energy discharging assembly and a double-end hydraulic cylinder connected to a trolley body. The double-end hydraulic cylinder is used for jacking outwards from the inner sides of the two track main bodies; the locking clamping rod assembly is used for being driven according to the pressed state of the opposite jacking type air pressure energy discharging assembly, and jacking is conducted inwards from the outer sides of the two rails.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction equipment, and particularly relates to an artificial drilling and blasting protection trolley in a TBM-driven tunnel. Background Art

[0002] The TBM method is currently widely used at home and abroad, and railway tunnels account for a relatively large proportion. In railway tunnels, there are many auxiliary chambers such as equipment holes, ventilation and maintenance cross-passages, and refuge holes that need to be excavated by drilling and blasting. To save the construction period, operations are often carried out synchronously during the excavation of the main TBM tunnel. At this time, the air shock wave and flying stones generated by artificial drilling and blasting will damage auxiliary facilities such as the air duct, belt, and cable of the TBM. The air duct is the lifeline for TBM excavation, the belt is the guarantee for TBM mucking, and the high-voltage cable and communication line are even more the power and communication guarantees for TBM excavation. Each one is indispensable, and it takes a lot of time to restore them if they are damaged. Therefore, generally, protection is carried out at the drilling and blasting position during artificial drilling and blasting.

[0003] The existing protection method mainly directly erects a support at the drilling and blasting position to block the explosion shock wave and flying stones, so as to protect the auxiliary settings of the TBM. However, directly erecting a support is quite troublesome to erect in order to ensure its protection strength, and attention also needs to be paid to protecting auxiliary facilities such as the air duct, belt, and cable during the erection and disassembly process. Since the auxiliary chamber needs to be drilled and blasted multiple times, the actual construction process is even more troublesome.

[0004] Based on the above background, the inventor designed an artificial drilling and blasting protection trolley in a TBM-driven tunnel to solve at least one of the above problems, and thus, this application is proposed. Summary of the Invention

[0005] The purpose of this application is to provide an artificial drilling and blasting protection trolley in a TBM-driven tunnel to solve the problems of the prior art.

[0006] To solve the above technical problems, the present invention adopts the following solutions: This application provides an artificial drilling and blasting protection trolley in a TBM-driven tunnel, including a trolley body arranged on two track bodies, and an opposed pneumatic energy-dissipating component arranged on the trolley body. The opposed pneumatic energy-dissipating component is slidably connected to the trolley body; It further includes at least two support protection plate components respectively located on both sides of the trolley body, and at least two groups of force transmission components. The two ends of the force transmission component are respectively connected to the support protection plate component and the opposed pneumatic energy-dissipating component; It further includes a locking mechanism for preventing the explosion shock wave from overturning the trolley body. The locking mechanism includes a locking clamp rod component connected to the opposed pneumatic energy-dissipating component and a double-headed hydraulic cylinder connected to the trolley body; The double-head hydraulic cylinder is used to press outward from the inside of the two track bodies; The locking clamp rod assembly is used to drive the top-to-top gas pressure energy release assembly according to the pressure state, and press from the outside of the two tracks to the inside.

[0007] Optionally, the top-to-top type air pressure energy release assembly comprises a top-pressing male head and a top-pressing female seat slidably connected to the trolley body; A pressing protrusion and a pressing groove are respectively arranged on the opposite sides of the pressing male head and the pressing female seat, and the pressing protrusion extends into the pressing groove and is slidably and sealingly connected thereto; A pressurized sealed cavity for accommodating compressible gas is provided between the pressing protrusion and the pressing groove.

[0008] Optionally, the locking clamp rod assembly comprises a first clamp rod and a second clamp rod, and locking clamp blocks disposed at ends of the first clamp rod and the second clamp rod; When the locking clamp rod assembly is in an unlocked state corresponding to the non-pressurized state of the top-to-top gas pressure energy release assembly, the locking clamp blocks at the ends of the first clamp rod and the second clamp rod are located outside the track body; The locking clamp rod assembly also includes a rotating shaft, and the first clamp rod and the second clamp rod are connected to each other in a cross-shaped rotation through the rotating shaft; It also includes a transmission assembly for driving the first clamping rod and the second clamping rod to move closer to each other at one end away from the locking clamping block, and the power input end of the transmission assembly is fixedly connected to the top pressing male head.

[0009] Optionally, the transmission assembly includes a transverse push block and a vertical push rod, and a linkage cable; The two ends of the linkage cable are respectively fixed on the first clamping rod and the second clamping rod; The horizontal push block is fixed to the bottom of the pressing male head, and the vertical push rod is slidably connected to the trolley body vertically. The horizontal push block is provided with an inclined pressing groove located just above the middle of the linkage cable. One end of the vertical push rod is fixed to the middle of the linkage cable, and the other end presses on the inclined surface of the inclined pressing groove.

[0010] Optionally, the locking mechanism further comprises an electric telescopic rod vertically arranged at the bottom of the trolley body; The double-head hydraulic cylinder is transversely fixed on the output end of the electric telescopic rod.

[0011] Optionally, the force transmission assembly includes a force transmission base and a plurality of force transmission support rods; The force transmission base is fixedly connected to the top-to-top gas pressure energy release assembly; One end of the force transmission support rod is fixed on the force transmission base, and the other end is fixed on the supporting protection plate assembly.

[0012] Optionally, the longitudinal section of the support and protection plate assembly is in the shape of an arc; The side of the force transmission base facing the support and protection plate is arc-shaped. The center of the arc corresponding to the outer side surface of the force transmission base coincides with the center of the arc corresponding to the inner side surface of the support and protection plate assembly. A number of force transmission struts are arranged perpendicular to the force transmission base and the support and protection plate assembly along the radial direction of the force transmission base.

[0013] Optionally, the force transmission assembly further includes a horizontally arranged hydraulic telescopic cylinder. One end of the hydraulic telescopic cylinder is fixed on the force transmission base, and the other end is fixed on the opposed pneumatic energy dissipation assembly.

[0014] Optionally, the trolley body includes a lower part of the trolley, an upper part of the trolley, and a number of trolley columns. The upper part of the trolley is arranged on the lower part of the trolley through the trolley columns; The trolley body is arranged on the track body through the lower part of the trolley; The opposed pneumatic energy dissipation assembly is slidably connected between the lower part of the trolley and the upper part of the trolley; On the top of the upper part of the trolley, there is also provided a wind pipe protection groove for placing, and a wind pipe protection shed arranged on the top of the wind pipe protection groove.

[0015] Optionally, the support and protection plate assembly includes a support and protection plate main body with a sandwich groove arranged on the side, and an extension plate frame arranged in and slidably connected with the sandwich groove.

[0016] Advantages of the present invention: 1. In this application, by providing an opposed pneumatic energy dissipation assembly, a force transmission assembly, and a support and protection plate assembly, and the support and protection plate assembly is distributed on both sides of the trolley body and the opposed pneumatic energy dissipation assembly through the force transmission assembly, so that one of the two support and protection plate assemblies is arranged facing the manual drill blast hole, and the other is pressed against the tunnel side wall on the opposite side of the manual drill blast hole. After the explosive in the manual drill blast hole is ignited and explodes, the explosion shock wave and flying stones generated by the explosion are resisted by the support and protection plate assembly, and the impact pressure generated by the explosion shock wave on the support and protection assembly will cause the opposed pneumatic energy dissipation assembly to be extruded, and then the pressure is transmitted to the other support and protection plate assembly through the opposed pneumatic energy dissipation assembly until the pressure is transmitted to the side of the tunnel. Therefore, through the mutual cooperation of the above components in this application, the explosion shock wave and flying stones can be effectively blocked, and the problem of damage to TBM auxiliary facilities such as wind pipes and cables during the manual drill blasting process is solved.

[0017] Second, due to the excessive instantaneous impact force generated by the explosion, although the top-to-bottom pneumatic energy-dissipating component can reduce the probability of the trolley body being overturned by the explosion shock wave through its sliding connection with the trolley body, it is still not safe and stable enough. Therefore, the present application also provides a locking mechanism including a locking clamp rod assembly and a double-headed hydraulic cylinder. After the explosion shock wave generates an impact force on the support and protection plate assembly, the support and protection plate assembly transmits the impact force to the top-to-bottom pneumatic energy-dissipating component through the force transmission component, thereby causing the top-to-bottom pneumatic energy-dissipating component to be squeezed, and then driving the top-to-bottom pneumatic energy-dissipating component to apply an inward top pressure from the outside to the two track bodies. The double-headed hydraulic cylinder of the present application can pre-apply an outward top pressure from the inside to the two track bodies before the explosion. Thus, after the explosive in the manual drill blast hole explodes, the locking clamp rod assembly and the double-headed hydraulic cylinder of the locking mechanism will apply pressure to the track body from both sides, preventing the double-headed hydraulic cylinder of the locking mechanism from deforming the track body by top pressure, and at the same time, it can firmly lock the trolley body on the track body during the diffusion of the explosion shock wave, avoiding the problem of the trolley body being overturned by the remaining explosion shock wave that is not properly protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional structure diagram of an embodiment of the present application.

[0019] Figure 2 is Figure 1 a partially enlarged structural schematic diagram of part A in

[0020] Figure 3 It is a schematic cross-sectional structure diagram of the support and protection component in the embodiment of the present application after being unfolded flat.

[0021] Figure 4 It is a schematic cross-sectional structure diagram of the support and protection component in the embodiment of the present application after being unfolded flat and in the state of pulling out the extension frame.

[0022] Description of the reference numerals: 1 - Trolley main body, 11 - Lower part of the trolley, 12 - Upper part of the trolley, 121 - Air duct protection groove, 122 - Air duct protection shed, 13 - Trolley support pillar, 2 - Opposite - type pneumatic energy - discharging component, 21 - Male pressing head, 211 - Pressing protrusion, 22 - Female pressing seat, 221 - Pressing groove, 23 - Compressed sealed cavity, 3 - Force - transmitting component, 31 - Force - transmitting base, 32 - Force - transmitting support rod, 33 - Hydraulic telescopic cylinder, 4 - Support and protection plate component, 41 - Main body of the support and protection plate, 411 - Interlayer groove, 412 - Stop bar, 42 - Extension plate frame, 421 - Extension arc rod, 422 - Extension cross bar, 43 - Flexible protection piece, 5 - Locking mechanism, 51 - Locking clamp rod component, 511 - First clamp rod, 512 - Second clamp rod, 52 - Double - headed hydraulic cylinder, 53 - Electric telescopic rod, 54 - Locking clamp block, 55 - Rotating shaft, 6 - Transmission component, 61 - Horizontal push block, 611 - Inclined - surface pressing groove, 62 - Vertical push rod, 63 - Linkage cable, 7 - Track main body, 8 - Drilling and blasting hole. Detailed implementation mode

[0023] The following combines the embodiments and the attached drawings to further elaborate on the present invention in detail, but the implementation modes of the present invention are not limited thereto.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the attached drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0025] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "provided with", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] The following details the present invention by referring to the attached drawings and combining with embodiments.

[0027] As Figures 1 to 4As shown in the figure, this embodiment provides an artificial drill and blast protection trolley in a TBM-driven tunnel, which includes a trolley body 1 arranged on two track bodies 7, and an opposed pneumatic energy-dissipating component 2 arranged on the trolley body 1. The opposed pneumatic energy-dissipating component 2 is slidably connected to the trolley body 1; It further includes at least two support and protection plate assemblies 4 respectively located on both sides of the trolley body 1, and at least two sets of force transmission assemblies 3. Both ends of the force transmission assembly 3 are respectively connected to the support and protection plate assembly 4 and the opposed pneumatic energy-dissipating component 2; It further includes a locking mechanism 5 for preventing the explosion shock wave from overturning the trolley body 1. The locking mechanism 5 includes a locking clamp rod assembly 51 connected to the opposed pneumatic energy-dissipating component 2 and a double-headed hydraulic cylinder 52 connected to the trolley body 1; The double-headed hydraulic cylinder 52 is used to press outwards from the inner sides of the two track bodies 7; The locking clamp rod assembly 51 is used to be driven according to the pressure-receiving state of the opposed pneumatic energy-dissipating component 2 and press inwards from the outer sides of the two tracks.

[0028] In this embodiment, by setting the opposed pneumatic energy-dissipating component 2, the force transmission assembly 3 and the support and protection plate assembly 4, and the support and protection plate assembly 4 is distributed on both sides of the trolley body 1 and the opposed pneumatic energy-dissipating component 2 through the force transmission assembly 3, so that one of the two support and protection plate assemblies 4 is arranged facing the artificial drill and blast hole 8, and the other is pressed against the tunnel side wall on the opposite side of the artificial drill and blast hole 8. After the explosive in the artificial drill and blast hole 8 is ignited and explodes, the explosion shock wave and flying stones generated by the explosion are blocked by the support and protection plate assembly 4, and the impact pressure generated by the explosion shock wave on the support and protection assembly will cause the opposed pneumatic energy-dissipating component 2 to be squeezed, and then the pressure is transmitted to the other support and protection plate assembly 4 through the opposed pneumatic energy-dissipating component 2 until the pressure is transmitted to the tunnel side. Therefore, through the mutual cooperation of the above components in this application, the explosion shock wave and flying stones can be effectively blocked, and the problem of damage to TBM auxiliary facilities such as air ducts and cables during the artificial drill and blast process is solved.

[0029] In addition, since the instantaneous impact force generated by the explosion is too large, although the top-type air pressure energy unloading assembly 2 can reduce the probability of the trolley body 1 being overturned by the explosion shock wave by slidingly connecting with the trolley body 1, it is still not safe and stable enough. Therefore, this embodiment also provides a locking mechanism 5 including a locking clamp rod assembly 51 and a double-headed hydraulic cylinder 52. After the explosion shock wave generates an impact force on the support guard plate assembly 4, the support guard plate assembly 4 transmits the impact force to the top-type air pressure energy unloading assembly 2 through the force transmission assembly 3, thereby causing the top-type air pressure energy unloading assembly 2 to be squeezed, thereby driving the top-type air pressure energy unloading assembly 2 to the two tracks. The main body 7 applies a pushing pressure from the outside to the inside, and the double-headed hydraulic cylinder 52 of the present application can pre-apply a pushing pressure from the inside to the outside to the two track main bodies 7 before the explosion, so that after the explosives in the artificially drilled blasting hole 8 explode, the locking clamp rod assembly 51 and the double-headed hydraulic cylinder 52 of the locking mechanism 5 will apply pressure to it from both sides of the track main body 7, preventing the locking mechanism 5 from pressing and deforming the track main body 7 with the double-headed hydraulic cylinder 52, and at the same time, the trolley main body 1 can also be firmly locked on the track main body 7 during the diffusion of the explosion shock wave, avoiding the problem of the trolley main body 1 being overturned due to the explosion shock wave that is not properly protected.

[0030] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the top-to-top type air pressure energy release assembly 2 includes a top-pressing male head 21 and a top-pressing female seat 22 which are slidably connected to the trolley body 1; A pressing protrusion 211 and a pressing groove 221 are respectively provided on the opposite sides of the pressing male head 21 and the pressing female seat 22. The pressing protrusion 211 extends into the pressing groove 221 and is slidably and sealingly connected thereto. A pressurized sealed cavity 23 for accommodating compressible gas is defined between the pressing protrusion 211 and the pressing groove 221 .

[0031] The pressing male head 21 and the pressing female seat 22 in this embodiment are slidably connected to the trolley body 1, which can avoid the explosion shock wave from affecting the trolley body 1 and causing the trolley body 1 to be overturned.

[0032] The pressurized sealed cavity 23 in this embodiment is filled with air. The technicians can also fill the pressurized sealed cavity 23 with nitrogen or other compressible fluid media as needed to facilitate the energy dissipation of the explosion shock wave.

[0033] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the locking clamp rod assembly 51 includes a first clamp rod 511 and a second clamp rod 512, and a locking clamp block 54 disposed at the ends of the first clamp rod 511 and the second clamp rod 512; In the unlocking state corresponding to the non-pressurized state of the opposing pneumatic energy-discharging assembly 2 by the locking clamp rod assembly 51, the locking clamp blocks 54 at the ends of the first clamp rod 511 and the second clamp rod 512 are located outside the track body 7; The locking clamp rod assembly 51 further includes a rotating shaft 55, and the first clamp rod 511 and the second clamp rod 512 are rotatably connected in a cross shape through the rotating shaft 55; It further includes a transmission assembly 6 for driving the ends of the first clamp rod 511 and the second clamp rod 512 away from the locking clamp block 54 to approach each other, and the power input end of the transmission assembly 6 is fixedly connected to the pressing male head 21.

[0034] In this embodiment, after the opposing pneumatic energy-discharging assembly 2 is subjected to the impact force caused by the explosion shock wave, the pressing male head 21 will move towards the pressing female seat 22. Since the pressing female seat 22 is pressed against the side wall of the tunnel through the force transmission assembly 3 and the support and protection plate assembly 4, its movement amplitude is relatively small. The pressing protrusion 211 of the pressing male head 21 will quickly move deep into the pressing groove 221, thereby applying a lateral thrust to the transmission assembly 6, so that the ends of the first clamp rod 511 and the second clamp rod 512 away from the locking clamp block 54 approach each other through the transmission assembly 6. Furthermore, the ends of the first clamp rod 511 and the second clamp rod 512 having the locking clamp blocks 54 can be made to approach each other, and then a pressure from the outside to the inside is applied to the two track bodies 7, so that the entire locking mechanism 5 is stably locked on the track body 7 after the explosion shock wave diffuses.

[0035] Specifically, in this embodiment, as Figure 2 shown, the transmission assembly 6 includes a lateral push block 61, a vertical push rod 62, and a linkage cable 63; Both ends of the linkage cable 63 are respectively fixed to the first clamp rod 511 and the second clamp rod 512; The lateral push block 61 is fixed to the bottom of the pressing male head 21. The vertical push rod 62 is slidably connected to the trolley body 1 in the vertical direction. The lateral push block 61 is provided with an inclined surface pressing groove 611 directly above the middle of the linkage cable 63. One end of the vertical push rod 62 is fixed to the middle of the linkage cable 63, and the other end presses against the inclined surface of the inclined surface pressing groove 611.

[0036] After the lateral push block 61 is pushed by the pressing male head 21, the inclined surface of its inclined surface pressing groove 611 will press the vertical push rod 62, causing the vertical push rod 62 to slide downward in the vertical direction. Furthermore, the vertical push rod 62 presses the middle position of the linkage cable 63, and then the linkage cable 63 pulls the two ends of the first clamp rod 511 and the second clamp rod 512 to approach each other.

[0037] Specifically, in this embodiment, as Figure 1 and Figure 2As shown, the locking mechanism 5 further includes an electric telescopic rod 53 vertically arranged at the bottom of the trolley body 1; The double-headed hydraulic cylinder 52 is horizontally fixed to the output end of the electric telescopic rod 53. The electric telescopic rod 53 is provided so that after the double-headed hydraulic cylinder 52 retracts, it can move upward through the electric telescopic rod 53, thereby avoiding damage to the double-headed hydraulic cylinder 52 during the movement of the trolley body 1.

[0038] Specifically, in this embodiment, as Figure 1 and Figure 2 shown, the force transmission assembly 3 includes a force transmission base 31 and a number of force transmission support rods 32; The force transmission base 31 is fixedly connected to the opposed pneumatic energy dissipation assembly 2; One end of the force transmission support rod 32 is fixed to the force transmission base 31, and the other end is fixed to the support and protection plate assembly 4. By providing the force transmission base 31 and a number of force transmission support rods 32, the impact force caused by the explosion shock wave can be more stably transmitted to the opposed pneumatic energy dissipation assembly 2.

[0039] Specifically, in this embodiment, as Figure 1 and Figure 2 shown, the longitudinal section of the support and protection plate assembly 4 is arc-shaped; The side of the force transmission base 31 facing the support and protection plate is arc-shaped. The center of the arc on the outer side of the force transmission base 31 coincides with the center of the arc on the inner side of the support and protection plate assembly 4. A number of force transmission support rods 32 are arranged perpendicular to the force transmission base 31 and the support and protection plate assembly 4 along the radial direction of the force transmission base 31. In this embodiment, through the arc-shaped design of the outer side of the force transmission base 31 and the coincidence of the center of the arc on the outer side of the force transmission base 31 with the center of the arc on the inner side of the support and protection plate assembly 4, both ends of the force transmission support rod 32 can be vertically arranged, thereby ensuring the stability of the force transmission support rod 32 during the impact force transmission process.

[0040] Specifically, in this embodiment, as Figure 1 and Figure 2 shown, the force transmission assembly 3 further includes a horizontally arranged hydraulic telescopic cylinder 33. One end of the hydraulic telescopic cylinder 33 is fixed to the force transmission base 31, and the other end is fixed to the opposed pneumatic energy dissipation assembly 2. The hydraulic telescopic cylinder 33 is provided so that the support and protection plate assembly 4 can retract a certain position, facilitating the transfer of the trolley body 1.

[0041] Specifically, in this embodiment, as Figure 1 and Figure 2 shown, the trolley body 1 includes a lower trolley part 11, an upper trolley part 12, and a number of trolley support columns 13. The upper trolley part 12 is arranged on the lower trolley part 11 through the trolley support columns 13; The trolley main body 1 is arranged on the track main body 7 through the lower part 11 of the trolley; The opposed pneumatic energy-discharging component 2 is slidably connected between the lower part 11 and the upper part 12 of the trolley; thus, it is ensured as much as possible that the opposed pneumatic energy-discharging component 2 is located at the center of the whole tunnel during use, making the energy transfer more stable during the whole compression process.

[0042] In this embodiment, a limiting structure (not shown in the figure) is further arranged between the lower part 11 and the upper part 12 of the trolley to prevent the compression sealing cavity 23 of the opposed pneumatic energy-discharging component 2 from completely separating the male head 21 and the female seat 22 from each other under a certain pressure. In this embodiment, when the support and protection plate component 4 close to the drill and blast hole is arranged, it also needs to be arranged as close to the tunnel side wall as possible, so that after the opposed pneumatic energy-discharging component 2 is compressed by the impact force, part of the energy is discharged to the tunnel side wall through the support and protection plate component 4.

[0043] A duct protection groove 121 is arranged at the top of the upper part 12 of the trolley, and a duct protection shed 122 is arranged at the top of the duct protection groove 121 to further improve the protection ability of the duct.

[0044] Specifically, in this embodiment, as Figure 3 and Figure 4 shown, the support and protection plate component 4 includes a support and protection plate main body 41 with a sandwich groove 411 arranged on the side, and an extension plate frame 42 arranged in the sandwich groove 411 and slidably connected thereto. In this embodiment, by arranging the sandwich groove 411 on the support and protection plate main body 41 and arranging the extension plate frame 42 slidably connected thereto in the sandwich groove 411, the extension plate frame 42 can be pulled out as needed to expand the protection area against explosion shock waves and flying stones, effectively solving the problem in the prior art that the width of the support and protection plate is insufficient, resulting in damage to ducts and cables caused by the afterwaves of explosion shock waves and flying stones.

[0045] Specifically, in this embodiment, as Figure 3 and Figure 4 shown, it further includes a flexible protection member 43 for blocking flying stones; One end of the flexible protection member 43 is connected to the end of the extension plate frame 42 away from the support and protection plate, and the other end is connected to the support and protection plate main body 41.

[0046] In this embodiment, by arranging the flexible protection member 43 and the flexible protection member 43 can wrap the extension plate frame 42 therein, so that the fine flying stones generated by the explosion shock wave can also be blocked, avoiding the damage to facilities such as ducts and cables caused by the fine flying stones flying out through the internal gaps of the extension plate frame 42, thereby further improving the protection ability of the support and protection component in this application.

[0047] Specifically, in this embodiment, as Figure 3 and Figure 4 shown, sandwich grooves 411, extension plate frames 42, and protective nets are provided on both sides of the support and protection plate main body 41. Moreover, the sandwich grooves 411, extension plate frames 42, and the structure of the flexible protection member 43 on both sides of the support and protection plate main body 41 are the same and are arranged axially symmetrically, so that the weight distribution on both sides of the support and protection plate main body 41 is balanced, avoiding the problem of unstable force.

[0048] Specifically, in this embodiment, as Figure 3 and Figure 4 shown, the flexible protection member 43 is a protective net pocket connected to the support and protection plate main body 41 and covering the extension plate frame 42 inside. Technicians can also set it as a protective cloth bag or other structures according to needs, which will not be elaborated here.

[0049] Specifically, in this embodiment, as Figure 3 and Figure 4 shown, the connections between the flexible protection member 43 and the extension plate frame 42 and the support and protection plate main body 41 are all detachable connections, which facilitates the disassembly and replacement of the flexible protection member 43.

[0050] Specifically, in this embodiment, as Figure 3 and Figure 4 shown, the longitudinal section shape of the support and protection plate main body 41 is arc-shaped, making its shape more fitting with the shape of the tunnel side wall and improving the protection effect.

[0051] Specifically, in this embodiment, as Figure 3 and Figure 4 shown, the longitudinal section shapes of the sandwich grooves 411 and the extension plate frames 42 are also arc-shaped; The extension plate frame 42 includes at least two arc-shaped extension arc bars 421 and several extension cross bars 422. The two ends of the extension cross bar 422 are respectively vertically fixed on the two extension arc bars 421.

[0052] Specifically, in this embodiment, as Figure 3 and Figure 4 shown, a stop bar 412 for preventing the extension plate frame 42 from completely sliding out is further provided in the sandwich groove 411 of the support and protection plate; The extension cross bar 422 is slidably connected to the stop bar 412, and at the same time, the stability of the extension plate frame 42 during the pulling process is improved.

[0053] Specifically, in this embodiment, the length range of the extension plate frame 42 is: 2m. Technicians can set it to other lengths according to actual needs, such as 1m or 3m, which will not be exemplified here.

[0054] It is understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A drill and blast protection trolley for use in a TBM tunnel, characterized in that: It comprises a trolley body (1) arranged on two track bodies (7), and a top-to-top gas pressure energy release assembly (2) arranged on the trolley body (1), wherein the top-to-top gas pressure energy release assembly (2) is slidably connected to the trolley body (1); It also comprises at least two support and protection plate assemblies (4) respectively located on both sides of the trolley body (1), and at least two sets of force transmission assemblies (3), the two ends of the force transmission assemblies (3) being respectively connected to the support and protection plate assemblies (4) and the top-to-top air pressure energy unloading assemblies (2); It also includes a locking mechanism (5) for preventing the trolley body (1) from being overturned by the explosion shock wave, the locking mechanism (5) comprising a locking clamping rod assembly (51) connected to the top-to-top gas pressure energy release assembly (2) and a double-headed hydraulic cylinder (52) connected to the trolley body (1); The double-headed hydraulic cylinder (52) is used to press outward from the inside of the two track bodies (7); The locking clamp rod assembly (51) is used to drive the top-to-top type air pressure energy release assembly (2) according to the pressure state thereof, and to press inward from the outside of the two rails.

2. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 1, characterized in that: The top-to-top type air pressure energy release assembly (2) comprises a top-pressing male head (21) and a top-pressing female seat (22) which are slidably connected to the trolley body (1); A pressing protrusion (211) and a pressing groove (221) are respectively provided on opposite sides of the pressing male head (21) and the pressing female seat (22), and the pressing protrusion (211) extends into the pressing groove (221) and is slidably and sealingly connected thereto; A pressurized sealed cavity (23) for accommodating compressible gas is provided between the pressing protrusion (211) and the pressing groove (221).

3. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 2, characterized in that: The locking clamp rod assembly (51) comprises a first clamp rod (511) and a second clamp rod (512), and a locking clamp block (54) arranged at the ends of the first clamp rod (511) and the second clamp rod (512); When the locking clamp rod assembly (51) is in an unlocked state corresponding to the non-pressurized state of the top-to-top type air pressure energy release assembly (2), the locking clamp blocks (54) at the ends of the first clamp rod (511) and the second clamp rod (512) are located outside the track body (7); The locking clamp rod assembly (51) further comprises a rotating shaft (55), and the first clamp rod (511) and the second clamp rod (512) are rotatably connected in a cross shape via the rotating shaft (55); It also includes a transmission assembly (6) for driving the first clamping rod (511) and the second clamping rod (512) to move their ends away from the locking clamp block (54) toward each other, wherein the power input end of the transmission assembly (6) is fixedly connected to the top pressing male head (21).

4. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 3, characterized in that: The transmission assembly (6) comprises a transverse push block (61), a vertical push rod (62), and a linkage cable (63); Two ends of the linkage cable (63) are respectively fixed to the first clamping rod (511) and the second clamping rod (512); The transverse push block (61) is fixed to the bottom of the pressing male head (21), and the vertical push rod (62) is slidably connected to the trolley body (1) in the vertical direction. The transverse push block (61) is provided with an inclined surface pressing groove (611) located just above the middle of the linkage cable (63). One end of the vertical push rod (62) is fixed to the middle of the linkage cable (63), and the other end presses on the inclined surface of the inclined surface pressing groove (611).

5. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 1, characterized in that: The locking mechanism (5) further comprises an electric telescopic rod (53) vertically arranged at the bottom of the trolley body (1); The double-head hydraulic cylinder (52) is transversely fixed to the output end of the electric telescopic rod (53).

6. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 1, characterized in that: The force transmission component (3) comprises a force transmission base (31) and a plurality of force transmission support rods (32); The force transmission base (31) is fixedly connected to the top-to-top type air pressure energy release assembly (2); One end of the force transmission support rod (32) is fixed to the force transmission base (31), and the other end is fixed to the support protection plate assembly (4).

7. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 6, characterized in that: The longitudinal section of the supporting protection plate assembly (4) is in the shape of an arc; The side of the force transmission base (31) facing the support protection plate is in the shape of an arc, the center of the circle corresponding to the arc of the outer side surface of the force transmission base (31) coincides with the center of the circle corresponding to the arc of the inner side surface of the support protection plate assembly (4), and a plurality of force transmission support rods (32) are arranged along the radial direction of the force transmission base (31) and perpendicular to the force transmission base (31) and the support protection plate assembly (4).

8. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 6, characterized in that: The force transmission component (3) further comprises a hydraulic telescopic cylinder (33) arranged transversely, one end of the hydraulic telescopic cylinder (33) being fixed to the force transmission base (31) and the other end being fixed to the top-to-top type air pressure energy unloading component (2).

9. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 1, characterized in that: The trolley body (1) comprises a trolley lower part (11), a trolley upper part (12), and a plurality of trolley pillars (13); the trolley upper part (12) is arranged on the trolley lower part (11) via the trolley pillars (13); The trolley body (1) is arranged on the track body (7) through the trolley lower part (11); The top-to-top type air pressure energy release assembly (2) is slidably connected between the lower part (11) of the trolley and the upper part (12) of the trolley; The top of the trolley upper part (12) is also provided with a duct protection groove (121) for accommodating an air duct, and an air duct protection shed (122) provided on the top of the air duct protection groove (121).

10. The artificial drilling and blasting protection trolley in a TBM tunnel according to claim 1, characterized in that: The support protection plate assembly (4) comprises a support protection plate body (41) having an interlayer groove (411) arranged on a side thereof, and an expansion plate frame (42) arranged in the interlayer groove (411) and slidably connected thereto.

Images