An artificial drill and blast protection trolley in a TBM-driven tunnel

Abstract

The present invention discloses a manual drilling and blasting protection trolley in a TBM tunnel, which relates to the technical field of tunnel construction equipment and can solve the problem of difficulty in manual drilling and blasting protection during TBM tunneling. An embodiment of the present invention discloses a manual drilling and blasting protection trolley in a TBM tunnel, comprising a trolley body and a top-type air pressure unloading assembly, wherein the top-type air pressure unloading assembly is slidably connected to the trolley body; comprising at least two support and protection plate assemblies respectively located on both sides of the trolley body, at least two groups of force transmission assemblies, wherein the two ends of the force transmission assembly are respectively connected to the support and protection plate assembly and the top-type air pressure unloading assembly; comprising a locking mechanism, wherein the locking mechanism comprises a locking clamping rod assembly connected to the top-type air pressure unloading assembly and a double-headed hydraulic cylinder connected to the trolley body; the double-headed hydraulic cylinder is used to press outward from the inside of the two track bodies; the locking clamping rod assembly is used to drive according to the pressure state of the top-type air pressure unloading assembly, and press inward from the outside of the two tracks.

Description

Technical Field

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

[0002] TBM construction method is currently widely used at home and abroad, among which railway tunnels account for a large proportion. In railway tunnels, there are many auxiliary caverns such as equipment holes, ventilation and maintenance cross passages and car avoidance holes that need to be excavated using the drilling and blasting method. In order to save construction time, they are often operated simultaneously during the excavation of the TBM main tunnel. At this time, the air flow shock wave and flying rocks generated by manual drilling and blasting will damage the TBM's wind belts, belts, cables and other auxiliary facilities. The wind belt is the lifeline of TBM excavation, the belt is the guarantee of TBM excavation and slag discharge, and the high-voltage cable and communication line are the power and communication guarantee of TBM excavation. Each one is indispensable, and it takes a lot of time to restore them if they are damaged. Therefore, protection is generally carried out at the drilling and blasting position during manual drilling and blasting.

[0003] The existing protection method mainly involves directly setting up supports at the drilling and blasting locations to block the explosion shock wave and flying rocks, thereby protecting the TBM's auxiliary equipment. However, directly setting up supports is quite troublesome to ensure its protection strength. Attention must also be paid to the protection of auxiliary facilities such as wind belts, belts, and cables during the installation and disassembly process. Since the auxiliary caverns require multiple drilling and blasting, the actual construction process is even more troublesome.

[0004] Based on the above background, the inventors have designed a manual drilling and blasting protection trolley for use in TBM tunneling to solve at least one of the above problems, and thus proposed the present application. Summary of the Invention

[0005] The purpose of this application is to provide a manual drilling and blasting protection trolley for use in TBM tunneling tunnels to solve the problems of the existing technology.

[0006] In order to solve the above technical problems, the present invention adopts the following solutions:

[0007] The present application provides a drill and blast protection trolley for use in a TBM tunnel, comprising a trolley body disposed on two track bodies, and a top-to-top gas pressure energy unloading assembly disposed on the trolley body, wherein the top-to-top gas pressure energy unloading assembly is slidably connected to the trolley body;

[0008] It also includes at least two support and protection plate assemblies respectively located on both sides of the trolley body, and at least two sets of force transmission assemblies, the two ends of the force transmission assembly are respectively connected to the support and protection plate assembly and the top-to-top air pressure unloading assembly;

[0009] It also includes a locking mechanism for preventing the explosion shock wave from overturning the trolley body, the locking mechanism including a locking clamping rod assembly connected to the top-to-top pneumatic energy unloading assembly and a double-headed hydraulic cylinder connected to the trolley body;

[0010] The double-headed hydraulic cylinder is used to press outward from the inside of the two rail bodies;

[0011] The locking clamp rod assembly is used to drive the top-to-top pneumatic pressure energy unloading assembly according to the pressure state, and press the two tracks from the outside to the inside.

[0012] Optionally, the top-to-top type air pressure energy unloading assembly includes a top-pressing male head and a top-pressing female seat slidably connected to the trolley body;

[0013] A pressing protrusion and a pressing groove are respectively provided 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 sealedly connected thereto;

[0014] A pressurized sealed cavity for accommodating compressible gas is provided between the pressing protrusion and the pressing groove.

[0015] Optionally, the locking clamp rod assembly includes a first clamp rod and a second clamp rod, and locking clamp blocks provided at ends of the first clamp rod and the second clamp rod;

[0016] When the locking clamp rod assembly is in an unlocked state corresponding to the non-pressurized state of the top-to-top type air pressure energy unloading assembly, the locking clamp blocks at the ends of the first clamp rod and the second clamp rod are located outside the track body;

[0017] The locking clamp rod assembly further includes a rotating shaft, and the first clamp rod and the second clamp rod are connected in a cross-shaped rotation via the rotating shaft;

[0018] It also includes a transmission assembly for driving the first clamping rod and the second clamping rod away from one end of the locking clamping block to move closer to each other, and the power input end of the transmission assembly is fixedly connected to the top pressing male head.

[0019] Optionally, the transmission assembly includes a transverse push block and a vertical push rod, and a linkage cable;

[0020] The two ends of the linkage cable are respectively fixed on the first clamping rod and the second clamping rod;

[0021] 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.

[0022] Optionally, the locking mechanism further comprises an electric telescopic rod vertically arranged at the bottom of the trolley body;

[0023] The double-head hydraulic cylinder is transversely fixed to the output end of the electric telescopic rod.

[0024] Optionally, the force transmission assembly includes a force transmission base and a plurality of force transmission support rods;

[0025] The force transmission base is fixedly connected to the top-to-top air pressure energy unloading assembly;

[0026] One end of the force transmission support rod is fixed on the force transmission base, and the other end is fixed on the supporting protective plate assembly.

[0027] Optionally, the longitudinal section of the support and protection plate assembly is in the shape of an arc;

[0028] The side of the force transmission base facing the support protective 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 coincides with the center of the circle corresponding to the arc of the inner side surface of the support protective plate assembly, and a number of force transmission support rods are arranged along the radial direction of the force transmission base perpendicular to the force transmission base and the support protective plate assembly.

[0029] Optionally, the force transmission assembly further includes a transversely arranged hydraulic telescopic cylinder, one end of the hydraulic telescopic cylinder is fixed to the force transmission base, and the other end is fixed to the top-to-top pneumatic pressure energy unloading assembly.

[0030] Optionally, the trolley body includes a trolley lower part and a trolley upper part, and a plurality of trolley supports, and the trolley upper part is arranged on the trolley lower part through the trolley supports;

[0031] The trolley body is arranged on the track body through the trolley lower part;

[0032] The top-to-top pneumatic energy unloading assembly is slidably connected between the lower part and the upper part of the trolley;

[0033] The top of the upper part of the trolley is also provided with an air duct protection groove for placing the air duct, and an air duct protection shed arranged on the top of the air duct protection groove.

[0034] Optionally, the support and protection plate assembly includes a support and protection plate body having an interlayer groove provided on its side, and an extension plate frame provided in the interlayer groove and slidably connected thereto.

[0035] Beneficial effects of the present invention:

[0036] 1. The present application sets up a top-type air pressure energy unloading assembly, a force transmission assembly and a support and protection plate assembly, and the support and protection plate assemblies are distributed on both sides of the trolley body and the top-type air pressure energy unloading assembly through the force transmission assembly, so that one of the two support and protection plate assemblies is set facing the artificial drilled blasting hole, and the other is pressed against the tunnel side wall on the opposite side of the artificial drilled blasting hole. After the explosives in the artificial drilled blasting hole are ignited and exploded, the explosion shock wave and flying rocks 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 top-type air pressure energy unloading assembly to be squeezed, and then the pressure is transmitted to the other support and protection plate assembly through the top-type air pressure energy unloading assembly until the pressure is transmitted to the side of the tunnel. Therefore, the present application can effectively block the explosion shock wave and flying rocks through the mutual cooperation of the above-mentioned components, and solves the problem of damage to TBM auxiliary facilities such as air ducts and cables during artificial drilling and blasting.

[0037] Second, since the instantaneous impact force generated by the explosion is too large, although the top-type air pressure energy unloading assembly can reduce the probability of the trolley body being overturned by the explosion shock wave by slidingly connecting 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 guard plate assembly, the support guard plate assembly transmits the impact force to the top-type air pressure energy unloading assembly through the force transmission assembly, thereby causing the top-type air pressure energy unloading assembly to be squeezed, thereby driving the top-type air pressure energy unloading assembly to press the two rails. The double-headed hydraulic cylinder of the present application can apply a pushing pressure from the inside to the two track bodies in advance before the explosion, so that after the explosives in the artificially drilled blasting hole explode, the locking clamp rod assembly of the locking mechanism and the double-headed hydraulic cylinder will apply pressure to it from both sides of the track body, preventing the locking mechanism from pressing the track body and deforming the track body. At the same time, the trolley body can also be firmly locked on the track body during the diffusion of the explosion shock wave, avoiding the problem of the trolley body being overturned due to the aftermath of the explosion shock wave that is not properly protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic cross-sectional view of an embodiment of the present application.

[0039] Figure 2 for Figure 1 Schematic diagram of the locally enlarged structure at point A in the middle.

[0040] Figure 3 This is a schematic diagram of the cross-sectional structure of the support and protection component after plane unfolding in an embodiment of the present application.

[0041] Figure 4 This is a schematic cross-sectional structural diagram of the support and protection assembly in the embodiment of the present application when the plane is unfolded and the expansion rack is pulled out.

[0042] Description of reference numerals:

[0043] 1- trolley body, 11- trolley lower part, 12- trolley upper part, 121- air duct protection groove, 122- air duct protection shed, 13- trolley pillar, 2- top-type air pressure unloading assembly, 21- top pressure male head, 211- top pressure protrusion, 22- top pressure female seat, 221- top pressure groove, 23- pressure sealing cavity, 3- force transmission assembly, 31- force transmission base, 32- force transmission support rod, 33- hydraulic telescopic cylinder, 4- support protection plate assembly, 41- support protection plate body, 411- interlayer Groove, 412-baffle, 42-extension plate frame, 421-extension arc rod, 422-extension cross bar, 43-flexible protective part, 5-locking mechanism, 51-locking clamping rod assembly, 511-first clamping rod, 512-second clamping rod, 52-double-head hydraulic cylinder, 53-electric telescopic rod, 54-locking clamping block, 55-rotating shaft, 6-transmission assembly, 61-lateral push block, 611-inclined top pressure groove, 62-vertical push rod, 63-linkage cable, 7-track body, 8-drilling and blasting holes. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0046] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "having," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0047] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0048] like Figures 1 to 4As shown, this embodiment provides a drill and blast protection trolley for use in a TBM tunnel, comprising a trolley body 1 disposed on two track bodies 7, and a top-to-bottom gas pressure energy release assembly 2 disposed on the trolley body 1, wherein the top-to-bottom gas pressure energy release assembly 2 is slidably connected to the trolley body 1;

[0049] It also includes at least two support and protection plate assemblies 4 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 assembly 3 are respectively connected to the support and protection plate assembly 4 and the top-to-top air pressure unloading assembly 2;

[0050] It also includes a locking mechanism 5 for preventing the explosion shock wave from overturning the trolley body 1. The locking mechanism 5 includes a locking clamping rod assembly 51 connected to the top-to-top air pressure energy unloading assembly 2 and a double-headed hydraulic cylinder 52 connected to the trolley body 1.

[0051] The double-headed hydraulic cylinder 52 is used to press outward from the inside of the two track bodies 7;

[0052] The locking clamp rod assembly 51 is used to drive the top-to-top pneumatic pressure energy unloading assembly 2 according to the pressure state, and press the two rails from the outside to the inside.

[0053] This embodiment sets up a top-type air pressure unloading assembly 2, a force transmission assembly 3 and a 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 top-type air pressure unloading assembly 2 through the force transmission assembly 3, so that one of the two support and protection plate assemblies 4 is set facing the artificial drill hole 8, and the other is pressed on the tunnel side wall on the opposite side of the artificial drill hole 8, so that after the explosives in the artificial drill hole 8 are ignited and exploded, the explosion shock wave and flying rocks generated by the explosion are resisted 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 top-type air pressure unloading assembly 2 to be squeezed, and then the pressure is transmitted to the other support and protection plate assembly 4 through the top-type air pressure unloading assembly 2 until the pressure is transmitted to the side of the tunnel. Therefore, this application can effectively block the explosion shock wave and flying rocks through the mutual cooperation of the above-mentioned components, and solves the problem of damage to TBM auxiliary facilities such as air ducts and cables during artificial drilling and blasting.

[0054] In addition, since the instantaneous impact force generated by the explosion is too large, although the top-type air pressure energy unloading component 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 component 2 through the force transmission component 3, thereby causing the top-type air pressure energy unloading component 2 to be squeezed, thereby driving the top-type air pressure energy unloading component 2 to press against 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 the track main body 7 and deforming the track main body 7 with the double-headed hydraulic cylinder 52. 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.

[0055] 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;

[0056] 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. The pressing protrusion 211 extends into the pressing groove 221 and is slidably and sealedly connected thereto.

[0057] A pressurized sealed cavity 23 for accommodating compressible gas is defined between the pressing protrusion 211 and the pressing groove 221 .

[0058] The pressing male head 21 and the pressing female seat 22 in this embodiment are slidably connected to the trolley body 1, which can minimize the impact of the explosion shock wave on the trolley body 1 and cause the trolley body 1 to be overturned.

[0059] The pressurized sealed cavity 23 in this embodiment is filled with air. 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.

[0060] 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 provided at the ends of the first clamp rod 511 and the second clamp rod 512;

[0061] When the locking clamp rod assembly 51 is in the unlocked state corresponding to the non-pressurized state of the top-to-top type air pressure energy unloading 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 rail body 7;

[0062] The locking clamp rod assembly 51 further includes a rotating shaft 55 , through which the first clamp rod 511 and the second clamp rod 512 are rotatably connected in a cross shape;

[0063] The transmission assembly 6 is further included to drive the first clamping rod 511 and the second clamping rod 512 to move closer to each other at one end away from the locking clamping block 54 . The power input end of the transmission assembly 6 is fixedly connected to the pressing male head 21 .

[0064] In this embodiment, after the top-type air pressure energy unloading assembly 2 is subjected to the impact force caused by the explosion shock wave, the top-pressing male head 21 will move toward the top-pressing female seat 22. Since the top-pressing female seat 22 is pressed against the side wall of the tunnel through the force transmission assembly 3 and the support protective plate assembly 4, its movement amplitude is relatively small. The top-pressing protrusion 211 of the top-pressing male head 21 will quickly move toward the depth of the top-pressing groove 221, thereby applying a lateral thrust to the transmission assembly 6, so that the first clamping rod 511 and the second clamping rod 512 away from the end of the locking clamp 54 are close to each other through the transmission assembly 6, and then the first clamping rod 511 and the second clamping rod 512 with the end of the locking clamp 54 are close to each other, thereby applying a pressure from the outside to the inside to the two track bodies 7, so that after the explosion shock wave spreads, the entire locking mechanism 5 is stably locked on the track body 7.

[0065] Specifically, in this embodiment, Figure 2 As shown, the transmission assembly 6 includes a horizontal push block 61, a vertical push rod 62, and a linkage cable 63;

[0066] The two ends of the linkage cable 63 are fixed to the first clamping rod 511 and the second clamping rod 512 respectively;

[0067] The horizontal 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 along the vertical direction. The horizontal push block 61 is provided with an inclined 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 pressing groove 611.

[0068] After the horizontal push block 61 is pushed by the pressing male head 21, the inclined surface of the pressing groove 611 will press the vertical push rod 62, causing the vertical push rod 62 to slide vertically downward, and then 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 clamping rod 511 and the second clamping rod 512 closer to each other.

[0069] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the locking mechanism 5 further includes an electric telescopic rod 53 vertically arranged at the bottom of the trolley body 1;

[0070] The double-headed hydraulic cylinder 52 is laterally fixed to the output end of the electric telescopic rod 53. The electric telescopic rod 53 is provided so that the double-headed hydraulic cylinder 52 can move upward through the electric telescopic rod 53 after being retracted, thereby avoiding damage to the double-headed hydraulic cylinder 52 during the movement of the trolley body 1.

[0071] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the force transmission assembly 3 includes a force transmission base 31 and a plurality of force transmission rods 32;

[0072] The force transmission base 31 is fixedly connected to the top-to-top air pressure energy unloading assembly 2;

[0073] One end of the force transmission support rod 32 is fixed on the force transmission base 31, and the other end is fixed on the support protective plate assembly 4. By setting the force transmission base 31 and a plurality of force transmission support rods 32, the impact force caused by the explosion shock wave can be more stably transmitted to the top-to-top air pressure energy unloading assembly 2.

[0074] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the longitudinal section of the support and protection plate assembly 4 is in the shape of an arc;

[0075] The side of the force transmission base 31 facing the support protective plate is in the shape of an arc, and the center of the arc corresponding to the outer side of the force transmission base 31 coincides with the center of the arc corresponding to the inner side of the support protective plate assembly 4, and a plurality of force transmission support rods 32 are arranged along the radial direction of the force transmission base 31 perpendicular to the force transmission base 31 and the support protective plate assembly 4. In this embodiment, the outer side of the force transmission base 31 is designed to be in the shape of an arc, and the center of the arc corresponding to the outer side of the force transmission base 31 coincides with the center of the arc corresponding to the inner side of the support protective plate assembly 4, so that both ends of the force transmission support rod 32 can be set vertically, thereby ensuring the stability of the force transmission support rod 32 during the impact force transmission process.

[0076] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the force transmission component 3 also includes a horizontally arranged hydraulic telescopic cylinder 33, one end of the hydraulic telescopic cylinder 33 is fixed on the force transmission base 31, and the other end is fixed on the top-type pneumatic energy unloading component 2. The hydraulic telescopic cylinder 33 is provided so that the support guard plate assembly 4 can be retracted to a certain position, which is convenient for the transfer of the trolley body 1.

[0077] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the trolley body 1 includes a trolley lower part 11 and a trolley upper part 12, and a plurality of trolley pillars 13, and the trolley upper part 12 is arranged on the trolley lower part 11 through the trolley pillars 13;

[0078] The trolley body 1 is arranged on the track body 7 through the trolley lower part 11;

[0079] The top-to-top air pressure energy unloading assembly 2 is slidably connected between the trolley lower part 11 and the trolley upper part 12; thereby ensuring that the top-to-top air pressure energy unloading assembly 2 is located at the center of the entire tunnel when in use, making the energy transfer more stable during the entire pressure process.

[0080] In this embodiment, a limiting structure (not shown in the figure) is also provided between the lower part 11 of the trolley and the upper part 12 of the trolley to prevent the pressurized sealed cavity 23 of the top-type air pressure energy unloading assembly 2 from completely separating from the top-pressing male head 21 and the top-pressing female seat 22 from each other when there is a certain pressure. In this embodiment, the support and protective plate assembly 4 close to the drill hole also needs to be set as close to the tunnel side wall as possible when it is set, so that after the top-type air pressure energy unloading assembly 2 is compressed by the impact force, part of the energy will be discharged to the tunnel side wall through the support and protective plate assembly 4.

[0081] The top of the trolley upper portion 12 is further provided with an air duct protection groove 121 for placing the air duct, and an air duct protection shed 122 provided on the top of the air duct protection groove 121, so as to further improve the protection capability of the air duct.

[0082] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the support and protection plate assembly 4 includes a support and protection plate body 41 having an interlayer groove 411 disposed on its side, and an extension plate frame 42 disposed within and slidably connected to the interlayer groove 411. This embodiment provides the interlayer groove 411 on the support and protection plate body 41, and disposes the extension plate frame 42 within the interlayer groove 411 and slidably connected thereto, so that the extension plate frame 42 can be pulled out as needed to expand the protection area against explosion shock waves and flying rocks. This effectively solves the problem in the prior art where the support and protection plate width is insufficient, resulting in damage to air ducts and cables caused by the aftermath of the explosion shock wave and flying rocks.

[0083] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, it also includes a flexible protective member 43 for blocking flying stones;

[0084] One end of the flexible protective member 43 is connected to an end of the extension plate frame 42 away from the supporting protective plate, and the other end is connected to the supporting protective plate body 41 .

[0085] In this embodiment, a flexible protective member 43 is provided, and the flexible protective member 43 can cover the expansion plate frame 42 inside, so that the fine flying stones generated by the explosion shock wave can also be blocked, preventing the fine flying stones from flying out through the internal gap of the expansion plate frame 42 and causing damage to facilities such as air ducts and cables, thereby further supporting the protective capability of the protective component in this application.

[0086] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, both sides of the supporting protective plate body 41 are provided with interlayer grooves 411 and extended plate frames 42, as well as a protective net, and the interlayer grooves 411 and extended plate frames 42 on both sides of the supporting protective plate body 41, as well as the flexible protective parts 43 have the same structure and are axially symmetrically arranged, so that the weight distribution on both sides of the supporting protective plate body 41 is balanced, avoiding the problem of unstable force.

[0087] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the flexible protective member 43 is a protective net bag connected to the supporting protective plate body 41 and covering the extended plate frame 42 therein. Technicians can also set it into a protective cloth bag or other structures according to needs, which will not be repeated here.

[0088] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the connections between the flexible protective member 43 and the extension plate frame 42 and the supporting protective plate body 41 are all detachable connections, which facilitates the removal and replacement of the flexible protective member 43.

[0089] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the longitudinal cross-section of the supporting protective plate body 41 is an arc shape, so that its shape is more closely aligned with the shape of the tunnel side wall, thereby improving the protective effect.

[0090] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the longitudinal cross-section of the interlayer groove 411 and the expansion plate frame 42 is also in the shape of a circular arc;

[0091] The expansion plate frame 42 includes at least two arc-shaped expansion arc rods 421 and a plurality of expansion cross rods 422 . The two ends of the expansion cross rods 422 are respectively and perpendicularly fixed to the two expansion arc rods 421 .

[0092] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, a blocking bar 412 is further provided in the interlayer groove 411 of the support protective plate for preventing the expansion plate frame 42 from sliding out completely;

[0093] The expansion cross bar 422 is slidably connected to the blocking bar 412 , thereby improving the stability of the expansion plate frame 42 during the pulling process.

[0094] Specifically, in this embodiment, the length range of the expansion plate frame 42 is: 2m. The technicians can set it to other lengths according to actual needs, such as 1m or 3m, which will not be given as examples here.

[0095] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will be able to make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection 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 air pressure energy unloading assembly (2) arranged on the trolley body (1), wherein the top-to-top air pressure energy unloading assembly (2) is slidably connected to the trolley body (1); It also 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), with the two ends of the force transmission assemblies (3) 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 explosion shock wave from overturning the trolley body (1), the locking mechanism (5) including a locking clamping rod assembly (51) connected to the top-to-top air pressure energy unloading 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 clamping rod assembly (51) is used to drive the top-type air pressure energy release assembly (2) according to the pressure state, and press from the outside of the two rails to the inside; 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) 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); The locking clamping rod assembly (51) comprises a first clamping rod (511), a second clamping rod (512), and a locking clamping block (54) provided at the ends of the first clamping rod (511) and the second clamping rod (512); When the locking clamping 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 clamping blocks (54) at the ends of the first clamping rod (511) and the second clamping rod (512) are located outside the track body (7); The locking clamping rod assembly (51) further includes a rotating shaft (55), and the first clamping rod (511) and the second clamping rod (512) are connected in a cross-shaped rotation 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 closer to each other at one end away from the locking clamping block (54), and the power input end of the transmission assembly (6) is fixedly connected to the top pressing male head (21); 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 laterally fixed to the output end of the electric telescopic rod (53).

2. The artificial drilling and blasting protection trolley for TBM tunneling according to claim 1, characterized in that: The transmission assembly (6) includes 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 horizontal push block (61) is fixed to the bottom of the top-pressing male head (21), and the vertical push rod (62) is slidably connected to the trolley body (1) in the vertical direction. The horizontal push block (61) is provided with an inclined top-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 top-pressing groove (611).

3. The artificial drilling and blasting protection trolley for TBM tunneling according to claim 1, characterized in that: The force transmission assembly (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 unloading 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).

4. The artificial drilling and blasting protection trolley for TBM tunneling according to claim 3, characterized in that: The longitudinal section of the support and protection plate assembly (4) is in the shape of an arc; The side of the force transmission base (31) facing the support protective plate is in an arc shape, the center of the circle corresponding to the arc shape of the outer side surface of the force transmission base (31) coincides with the center of the circle corresponding to the arc shape of the inner side surface of the support protective plate assembly (4), and a plurality of force transmission 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 protective plate assembly (4).

5. The artificial drilling and blasting protection trolley for TBM tunneling according to claim 3, characterized in that: The force transmission assembly (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 pneumatic pressure energy unloading assembly (2).

6. The artificial drilling and blasting protection trolley for TBM tunneling 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), wherein 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 air pressure energy unloading assembly (2) is slidably connected between the lower part (11) and the upper part (12) of the trolley; The top of the trolley upper portion (12) is further provided with an air duct protection groove (121) for placing the air duct, and an air duct protection shed (122) provided on the top of the air duct protection groove (121).

7. The artificial drilling and blasting protection trolley for TBM tunneling 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) provided on a side thereof, and an expansion plate frame (42) provided in the interlayer groove (411) and slidably connected thereto.

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