A tunnel lining trolley with ventilation pipes that can pass smoothly

Abstract

The present invention provides a tunnel lining trolley through which a ventilation pipe can pass smoothly, comprising a main portal, a guide pipe for the ventilation pipe to pass through, and a smooth assembly, wherein the guide pipe is installed on the main portal, and the smooth assembly comprises a plurality of pulleys, the plurality of pulleys are arranged in the circumferential direction of the guide pipe, and one pulley can be rotatably arranged around a rotating shaft, the rotating shaft is arranged on the pipe wall of the guide pipe, and the axis of the rotating shaft is arranged tangentially to the pipe wall, and the outer peripheral wall of each pulley is arranged to protrude from the inner hole circumferential surface of the pipe wall. The tunnel lining trolley of the present invention can avoid scratching and wear of the ventilation pipe when passing through the tunnel lining trolley, and makes the ventilation pipe free of bending and wrinkles, prolongs the service life of the ventilation pipe, has good ventilation effect, and can greatly reduce the resistance between the guide pipe and the ventilation pipe, thereby realizing that the ventilation pipe can pass through the tunnel lining trolley smoothly and stably, has good flexibility, and is simple and convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction equipment, and in particular to a tunnel lining trolley through which a ventilation pipe can pass smoothly. Background Art

[0002] During the tunnel construction process, in order to supply fresh air to the inside of the tunnel, remove harmful gases, steam, dust, gun smoke and other harmful substances, and make the temperature, relative humidity and flow rate of the air inside the tunnel meet the specified standards and other construction requirements, the tunnel uses a combination of ventilators and ventilation ducts to ventilate the inside of the tunnel. Especially in the construction of long and long tunnels and extra-long tunnels, tunnel construction ventilation has played a crucial and decisive role in the overall construction organization. At the same time, in the construction of bad geology with special toxic and harmful gases such as high gas and hydrogen sulfide, the role of tunnel construction ventilation is an extremely important factor in safety risk control. Tunnel construction ventilation is not just about the selection and use of equipment. Its more restrictive factor is the level of ventilation management. Ventilation management mainly refers to the management of ventilation ducts, including the straightness of the ducts, duct damage, and the material of the ducts (leakage rate per 100 meters, ventilation resistance) and other aspects. In the process of secondary lining construction of tunnels, tunnel lining trolleys are special equipment that must be used in the secondary lining of tunnel construction, which is used for the concrete lining construction of the inner wall of the tunnel.

[0003] See also Figures 1 to 4 The existing ventilation pipe 13 is buried at the initial support or secondary lining at the construction site of the tunnel 11 by means of a hanging point 16. The buried hanging point 16 is hooked on the hook 14 of the ventilation pipe 13 through a steel wire 15, so that the ventilation pipe 13 is laid along the side wall or the vault of the tunnel 11. The place where the ventilation pipe 13 passes through the tunnel lining trolley has a particularly great impact on the ventilation effect. Since the tunnel lining trolley is a special equipment that can move forward for construction at any time, each movement of the tunnel lining trolley involves the adjustment of the hanging scheme of the overlapping section of the ventilation pipe 13 and the tunnel lining trolley and the side wall or arch of the tunnel 11. Each adjustment requires stopping the air (during normal ventilation, the wind pressure in the ventilation pipe 13 is relatively high, and the ventilation pipe 13 is in a high-pressure bulging state as a whole, so the ventilation pipe 13 needs to be made soft after stopping the air before hanging adjustment can be performed) to operate, thereby affecting the ventilation effect of the tunnel 11 construction. Especially in the poor geological construction with high gas, hydrogen sulfide and other special toxic and harmful gases, the stopping of the ventilation pipe 13 will inevitably lead to a rapid increase in safety risks, which is very likely to cause serious production safety accidents.

[0004] In addition, when the ventilation pipe 13 passes through the tunnel lining trolley, there are folded sections 131 at both ends of the ventilation pipe 13, which causes the ventilation cross section to change, causing the local wind resistance of the ventilation pipe 13 to increase significantly, resulting in a large amount of air loss, affecting the ventilation effect of the construction of the tunnel 11. Moreover, with the increase in the construction frequency, the damage rate of the folded section 131 of the ventilation pipe 13 after passing through the tunnel lining trolley is extremely high, which in turn leads to an increase in the air leakage rate, affecting the ventilation effect of the construction of the tunnel 11.

[0005] In addition, the diameter of the through hole of the existing tunnel lining trolley for the ventilation pipe 13 to pass through is consistent with the diameter of the ventilation pipe 13, and the internal wind pressure of the ventilation pipe 13 is relatively high during ventilation, and the ventilation pipe 13 as a whole is in a high-pressure bulging state. Even if the air is stopped every time the tunnel lining trolley moves, the pipe wall of the ventilation pipe 13 has elastic recovery fatigue, which makes it difficult for the pipe wall of the ventilation pipe 13 to recover to its original diameter, so that there is resistance friction between the ventilation pipe 13 and the through hole of the tunnel lining trolley, and under the action of its own gravity, there is also resistance friction between the bottom of the ventilation pipe 13 and the through hole of the tunnel lining trolley, which causes the movement of the tunnel lining trolley relative to the ventilation pipe 13 to be not smooth enough or even blocked. Summary of the invention

[0006] The main purpose of the present invention is to provide a tunnel lining trolley through which a ventilation pipe can pass smoothly, thereby avoiding scratches and wear on the ventilation pipe when passing through the tunnel lining trolley, making the ventilation pipe free of bending and wrinkles, extending the service life of the ventilation pipe, and achieving good ventilation effect. The ventilation pipe can also pass through the tunnel lining trolley smoothly and steadily, with good flexibility and simple and convenient operation.

[0007] In order to achieve the main purpose of the present invention, the present invention provides a tunnel lining trolley through which a ventilation pipe can pass smoothly, including a main portal, a guide pipe for the ventilation pipe to pass through and a smooth component, the guide pipe is installed on the main portal, the smooth component includes a plurality of pulleys, the plurality of pulleys are arranged in the circumferential direction of the guide pipe, and one pulley can be rotatably arranged around a rotating shaft, the rotating shaft is arranged on the pipe wall of the guide pipe, and the axis of the rotating shaft is tangent to the pipe wall, and the outer peripheral wall of each pulley protrudes from the inner hole circumferential surface of the pipe wall.

[0008] It can be seen from the above scheme that the outer peripheral wall of each pulley protrudes from the inner hole circumference of the pipe wall of the guide pipe, so that the outer peripheral wall of each pulley abuts against the outer peripheral wall of the ventilation pipe passing through the guide pipe. When the tunnel lining trolley moves, the guide pipe of the tunnel lining trolley moves relative to the flexible ventilation pipe arranged in the tunnel. Since a plurality of pulleys are arranged on the circumference of the guide pipe, a pulley rotates around a rotating axis as the guide pipe moves, and the outer peripheral wall of each pulley abuts against the outer peripheral wall of the ventilation pipe passing through the guide pipe, thereby avoiding scratches and wear of the ventilation pipe when passing through the tunnel lining trolley, and making the ventilation pipe free of bending and wrinkles, extending the service life of the ventilation pipe, and having a good ventilation effect, and being able to greatly reduce the resistance between the guide pipe and the ventilation pipe, thereby realizing the ventilation pipe to pass through the tunnel lining trolley smoothly and steadily, with good flexibility and simple and convenient operation.

[0009] A preferred solution is that the plurality of pulleys are evenly arranged in the circumferential direction of the guide tube.

[0010] A further solution is that the number of the smooth components is more than two, and the multiple groups of smooth components are arranged side by side in the extension direction of the guide tube.

[0011] A further solution is that the multiple pulleys of two adjacent groups of smooth components are arranged alternately in the circumferential direction of the guide tube.

[0012] A further solution is that the multiple pulleys of two adjacent groups of smooth components are arranged one by one in the extension direction of the guide tube.

[0013] A further solution is that the guide tube includes a straight section, a first curved section and a second curved section, the straight section is installed on the main portal, the first end of the first curved section is smoothly connected to the first end of the straight section away from the second curved section, and the first end of the second curved section is smoothly connected to the second end of the straight section away from the first curved section.

[0014] A further solution is that the guide tube also includes a first closing section, one end of which is connected to the second end of the first curved section away from the straight extension section, and the inner hole diameter of the first end of the first closing section close to the first curved section is smaller than the inner hole diameter of the second end of the first closing section away from the first curved section.

[0015] A further solution is that a tunnel lining trolley through which a ventilation pipe can smoothly pass also includes a first orienting component, the first orienting component includes a plurality of first orienting wheels, the plurality of first orienting wheels are arranged in the circumferential direction of the first closing section, and a first orienting wheel can be rotatably arranged around a first rotating axis, the first rotating axis is arranged on the first annular wall of the first closing section, and the axis of the first rotating axis is arranged tangent to the first annular wall, and the outer peripheral wall of each first orienting wheel protrudes from the inner hole circumference of the first annular wall.

[0016] It can be seen from the above scheme that the first closing section is arranged in a trumpet shape, which can easily introduce the external flexible ventilation pipe into the guide pipe. Since a plurality of first directional wheels are arranged in the circumferential direction of the first closing section, along with the movement of the guide pipe, a first directional wheel rotates around a first rotation axis, and the outer peripheral wall of each first directional wheel abuts against the outer peripheral wall of the ventilation pipe entering the first closing section, thereby avoiding scratches and wear of the ventilation pipe when it is introduced into the guide pipe, and making the ventilation pipe free of bends and wrinkles, thereby extending the service life of the ventilation pipe, achieving good ventilation effect, and being able to greatly reduce the resistance between the guide pipe and the ventilation pipe, thereby achieving smooth and stable introduction of the ventilation pipe into the guide pipe, with good flexibility, simple and convenient operation.

[0017] A further solution is that the guide tube also includes a second closing section, one end of which is connected to the second end of the second curved section away from the straight extension section, and the inner hole diameter of the first end of the second closing section close to the second curved section is smaller than the inner hole diameter of the second end of the second closing section away from the second curved section.

[0018] A further solution is that a tunnel lining trolley through which a ventilation pipe can smoothly pass also includes a second orienting component, the second orienting component includes a plurality of second orienting wheels, the plurality of second orienting wheels are arranged in the circumferential direction of the second closing section, and a second orienting wheel can be rotatably arranged around a second rotating axis, the second rotating axis is arranged on the second annular wall of the second closing section, and the axis of the second rotating axis is arranged tangent to the second annular wall, and the outer peripheral wall of each second orienting wheel protrudes from the inner hole circumferential surface of the second annular wall.

[0019] It can be seen from the above scheme that the second closing section is arranged in a trumpet shape, which can easily send out the flexible ventilation tube in the guide tube. Since a plurality of second directional wheels are arranged circumferentially on the second closing section, along with the movement of the guide tube, a second directional wheel rotates around a second rotation axis, and the outer peripheral wall of each second directional wheel abuts against the outer peripheral wall of the ventilation tube that is about to send out the second closing section, thereby avoiding scratches and wear on the ventilation tube when sending out the guide tube, and making the ventilation tube free of bends and wrinkles, thereby extending the service life of the ventilation tube, achieving good ventilation effect, and being able to greatly reduce the resistance between the guide tube and the ventilation tube, thereby achieving smooth and stable delivery of the ventilation tube out of the guide tube, with good flexibility, and simple and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the existing tunnel lining trolley and ventilation pipe cooperating with tunnel construction.

[0021] Figure 2 yes Figure 1 Enlarged cross-sectional view at A-A.

[0022] Figure 3 yes Figure 1 Enlarged cross-sectional view at B-B.

[0023] Figure 4 yes Figure 3 Enlarged view at C.

[0024] Figure 5 It is a top view of the first embodiment of the tunnel lining trolley of the present invention in cooperation with the ventilation pipe in tunnel construction.

[0025] Figure 6 yes Figure 5 Enlarged cross-sectional view at D-D.

[0026] Figure 7 yes Figure 5 Enlarged cross-sectional view at E-E.

[0027] Figure 8 1 is a top view of the guide tube in the first embodiment of the tunnel lining trolley of the present invention.

[0028] Fig. 9 1 is a top view of the guide tube in the second embodiment of the tunnel lining trolley of the present invention.

[0029] Fig.10 yes Fig. 9 Enlarged cross-sectional view at F-F.

[0030] Fig.11 yes Fig.10 Enlarged view at H.

[0031] Fig.12 yes Fig. 9 Enlarged view at G.

[0032] Fig.13 It is a schematic structural diagram of the first directional assembly / the second directional assembly in the second embodiment of the tunnel lining trolley of the present invention.

[0033] Fig.14 It is a schematic diagram of a first arrangement of multiple pulleys in two adjacent groups of smooth sliding components in the second embodiment of the tunnel lining trolley of the present invention.

[0034] Fig.15 It is a schematic diagram of a second arrangement of multiple pulleys in two adjacent groups of smooth sliding components in the second embodiment of the tunnel lining trolley of the present invention.

[0035] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0036] The first embodiment of the tunnel lining trolley:

[0037] See also Figures 5 to 8The tunnel lining trolley of this embodiment includes a side mold 22, a main portal 23, and a guide pipe 21 for the ventilation pipe 13 to pass through. The guide pipe 21 is installed on the main portal 23. The main portal 23 is located inside the side mold 22. The main portal 23 is connected to the side mold 22 through a hydraulic screw 24. Specifically, the guide pipe 21 includes a straight section 211, a first curved section 212, and a second curved section 215. The straight section 211 is installed on the main portal 23. The first end of the first curved section 212 is smoothly connected to the first end of the straight section 211 away from the second curved section 215. The first end of the second curved section 215 is smoothly connected to the second end of the straight section 211 away from the first curved section 212.

[0038] During the construction of the tunnel 11, the hanging points 16 are buried in advance at the initial support or secondary lining and other parts. The buried hanging points 16 are hooked on the hooks 14 of the ventilation pipe 13 through the steel wire 15, so that the ventilation pipe 13 is laid along the extension direction of the tunnel 11. The ventilator (not shown) can supply air to the ventilation pipe 13, so as to perform construction ventilation inside the tunnel 11. When the tunnel 11 is undergoing secondary lining construction, the tunnel lining trolley is located inside the tunnel 11, and the main portal 23 of the tunnel lining trolley supports the side mold 22 in the tunnel 11 through the hydraulic screw 24 to perform concrete lining construction on the inner wall of the tunnel 11. At the same time, the ventilation pipe 13 passes through the first curved section 212, the straight section 211 and the second curved section 215 of the guide pipe 21 in the tunnel lining trolley in sequence. The first curved section 212, the straight section 211 and the second curved section 215 of the guide pipe 21 have a shaping and guiding effect on the flexible ventilation pipe 13, especially the first curved section 212 and the second curved section 215 of the guide pipe 21 shape and guide the folded sections that may exist at both ends of the flexible ventilation pipe 13 at the tunnel lining trolley, so as to avoid bending and wrinkling of the ventilation pipe 13 when passing through the tunnel lining trolley, so that the ventilation cross-section of the ventilation pipe 13 remains unchanged, thereby maintaining a good ventilation effect, reducing the breakage rate of the ventilation pipe 13, and extending the service life of the ventilation pipe 13. When the tunnel lining trolley moves, there is no need to stop the ventilation of the ventilation pipe 13, so that the tunnel 11 can be ventilated continuously without affecting the ventilation effect of the tunnel 11, thereby ensuring construction safety.

[0039] In order to further improve the shaping and guiding performance of the first curved section 212 and the second curved section 215 of the guide tube 21 on the possible folded sections of the flexible ventilation tube 13 at both ends of the tunnel lining trolley, the first curved section 212 and the second curved section 215 of this embodiment are symmetrically arranged about the straight section 211.

[0040] The guide tube 21 of this embodiment further includes a first extension section 213, which extends in the extension direction of the straight extension section 211, and the first end of the first extension section 213 is smoothly connected with the second end of the first curved section 212 away from the straight extension section 211. In addition, the guide tube 21 of this embodiment further includes a first closing section 214, one end of which is connected with the second end of the first extension section 213 away from the first curved section 212, and the inner diameter of the first end of the first closing section 214 adjacent to the first extension section 213 is smaller than the inner diameter of the second end of the first closing section 214 away from the first extension section 213, so that the first closing section 214 is arranged in a trumpet shape.

[0041] In addition, the guide tube 21 of this embodiment further includes a second extension section 216, which extends in the extension direction of the straight extension section 211, and the first end of the second extension section 216 is smoothly connected with the second end of the second curved section 215 away from the straight extension section 211. Moreover, the guide tube 21 of this embodiment further includes a second closing section 217, one end of which is connected with the second end of the second extension section 216 away from the second curved section 215, and the inner diameter of the second closing section 217 adjacent to the second extension section 216 is smaller than the inner diameter of the second closing section 217 away from the second extension section 216, so that the second closing section 217 is arranged in a trumpet shape.

[0042] Specifically, the straight section 211 of the guide tube 21 of this embodiment is located at the top of the main portal frame 23 in the vertical direction, and the straight section 211 is located in the middle of the main portal frame 23 in the extending direction perpendicular to the straight section 211. The straight section 211 of the guide tube 21 can be firmly connected to the main portal frame 23 by welding and fixing with auxiliary support rods, etc. In order to improve the structural strength and shaping and guiding performance of the guide tube 21, the guide tube 21 of this embodiment is made of steel, and any cross section of the guide tube 21 is circular.

[0043] The guide tube 21 of the tunnel lining trolley of the present embodiment is connected with a first closing section 214, a first extension section 213, a first curved section 212, a straight extension section 211, a second curved section 215, a second extension section 216 and a second closing section 217 in sequence. The first extension section 213, the straight extension section 211 and the second extension section 216 have the same extension direction, and the first curved section 212 and the second curved section 215 are symmetrically arranged about the straight extension section 211, so that the guide tube 21 of the tunnel lining trolley can perform multi-stage shaping and guiding on the flexible ventilation pipe 13 passing through the inside thereof, which can effectively avoid bending and wrinkling of the ventilation pipe 13 when passing through the tunnel lining trolley, so that the ventilation pipe The ventilation cross-section of 13 remains unchanged, thereby maintaining a good ventilation effect, reducing the breakage rate of the ventilation pipe 13 due to bending and wrinkling, and extending the service life of the ventilation pipe 13. The first closing section 214 and the second closing section 217 of the guide pipe 21 are both trumpet-shaped. When the tunnel lining trolley moves, the first closing section 214 can easily introduce the external flexible ventilation pipe 13 into the guide pipe 21, and the second closing section 217 can easily send out the flexible ventilation pipe 13 in the guide pipe 21, so there is no need to stop the ventilation of the ventilation pipe 13, and the tunnel 11 can be continuously ventilated without affecting the ventilation effect of the tunnel 11 construction, thereby ensuring construction safety.

[0044] The second embodiment of the tunnel lining trolley:

[0045] As an explanation of the second embodiment of the tunnel lining trolley of the present invention, only the differences from the first embodiment of the tunnel lining trolley are explained below.

[0046] See also Figures 9 to 13The tunnel lining trolley of this embodiment further includes a smoothing assembly 3, which includes a plurality of pulleys 31, which are arranged in the circumferential direction of the guide tube 21', and each pulley 31 can be rotatably arranged around a rotating shaft 32. The rotating shaft 32 is arranged on the tube wall of the guide tube 21', and the axis of the rotating shaft 32 is arranged tangentially to the tube wall of the guide tube 21'. The outer peripheral wall of each pulley 31 protrudes from the inner hole circumferential surface of the tube wall of the guide tube 21', so that the outer peripheral wall of each pulley 31 abuts against the outer peripheral wall of the ventilation tube 13 passing through the guide tube 21'. When the tunnel lining trolley moves, the guide tube 21′ of the tunnel lining trolley moves relative to the flexible ventilation tube 13 arranged in the tunnel 11. Since a plurality of pulleys 31 are arranged in the circumferential direction of the guide tube 21′, along with the movement of the guide tube 21′, a pulley 31 rotates around a rotating shaft 32, and the outer peripheral wall of each pulley 31 abuts against the outer peripheral wall of the ventilation tube 13 passing through the guide tube 21′, thereby avoiding scratches and wear of the ventilation tube 13 when passing through the tunnel lining trolley, and making the ventilation tube 13 free of bending and wrinkles, extending the service life of the ventilation tube 13, and achieving good ventilation effect, and being able to greatly reduce the resistance between the guide tube 21′ and the ventilation tube 13, thereby enabling the ventilation tube 13 to pass through the tunnel lining trolley smoothly and steadily, with good flexibility and simple and convenient operation.

[0047] Among them, the multiple pulleys 31 of the smooth component 3 of this embodiment are evenly arranged in the circumferential direction of the guide tube 21'. In order to further reduce the resistance between the guide tube 21' and the ventilation tube 13, the number of the smooth components 3 of this embodiment is more than two groups, and the multiple groups of smooth components 3 are arranged side by side in the extension direction of the guide tube 21'. Since the guide tube 21' of this embodiment is sequentially connected with the first extension section 213, the first curved section 212, the straight extension section 211, the second curved section 215 and the second extension section 216, the first extension section 213, the first curved section 212, the straight extension section 211, the second curved section 215 and the second extension section 216 can be respectively provided with one or more groups of smooth components 3. In this embodiment, the distance between two adjacent groups of smooth components 3 is less than 2 meters.

[0048] See also Fig.14 The first arrangement mode of the multiple pulleys 31 in two adjacent groups of smooth components 3 is that the multiple pulleys 31 in two adjacent groups of smooth components 3 are staggered in the circumferential direction of the guide tube 21 ′.

[0049] See also Fig.15 The second arrangement mode of the plurality of pulleys 31 in two adjacent groups of smooth components 3 is that the plurality of pulleys 31 in two adjacent groups of smooth components 3 are arranged one by one in the extension direction of the guide tube 21 ′.

[0050] In addition, the tunnel lining trolley of the present embodiment also includes a first orientation component 4, which includes a plurality of first orientation wheels 41, which are arranged in the circumferential direction of the first closing section 214, and a first orientation wheel 41 can be rotatably arranged around a first rotating shaft 42, the first rotating shaft 42 is arranged on the first annular wall of the first closing section 214, and the axis of the first rotating shaft 42 is tangent to the first annular wall of the first closing section 214, and the outer peripheral wall of each first orientation wheel 41 protrudes from the inner hole circumferential surface of the first annular wall of the first closing section 214. The first closing section 214 is shaped like a trumpet, which can easily introduce the external flexible ventilation pipe 13 into the guide pipe 21′. Since a plurality of first directional wheels 41 are arranged in the circumferential direction of the first closing section 214, along with the movement of the guide pipe 21′, a first directional wheel 41 rotates around a first rotating shaft 42, and the outer peripheral wall of each first directional wheel 41 abuts against the outer peripheral wall of the ventilation pipe 13 entering the first closing section 214, thereby avoiding scratches and wear of the ventilation pipe 13 when it is introduced into the guide pipe 21′, and making the ventilation pipe 13 free of bending and wrinkles, thereby extending the service life of the ventilation pipe 13, achieving good ventilation effect, and being able to greatly reduce the resistance between the guide pipe 21′ and the ventilation pipe 13, thereby achieving smooth and stable introduction of the ventilation pipe 13 into the guide pipe 21′, with good flexibility and simple and convenient operation.

[0051] In addition, the tunnel lining trolley of the present embodiment also includes a second orientation component 5, which includes a plurality of second orientation wheels 51, which are arranged in the circumferential direction of the second closing section 217, and a second orientation wheel 51 can be rotatably arranged around a second rotating shaft 52, and the second rotating shaft 52 is arranged on the second annular wall of the second closing section 217, and the axis of the second rotating shaft 52 is arranged tangent to the second annular wall of the second closing section 217, and the outer peripheral wall of each second orientation wheel 51 protrudes from the inner hole circumferential surface of the second annular wall of the second closing section 217. The second closing section 217 is arranged in a trumpet shape, which can easily send out the flexible ventilation tube 13 in the guide tube 21′. Since a plurality of second directional wheels 51 are arranged in the circumferential direction of the second closing section 217, along with the movement of the guide tube 21′, a second directional wheel 51 rotates around a second rotating shaft 52, and the outer peripheral wall of each second directional wheel 51 abuts against the outer peripheral wall of the ventilation tube 13 that is about to be sent out of the second closing section 217, thereby avoiding scratches and wear of the ventilation tube 13 when sending out the guide tube 21′, and making the ventilation tube 13 free of bending and wrinkles, thereby extending the service life of the ventilation tube 13, achieving good ventilation effect, and being able to greatly reduce the resistance between the guide tube 21′ and the ventilation tube 13, thereby achieving smooth and stable delivery of the ventilation tube 13 out of the guide tube 21′, with good flexibility and simple and convenient operation.

[0052] The tunnel lining trolley in this embodiment realizes that the ventilation pipe 13 passes through the guide tube 21' of the tunnel lining trolley smoothly and steadily through the smooth component 3, and at the same time realizes that the ventilation pipe 13 is smoothly and steadily introduced into the guide tube 21' of the tunnel lining trolley through the first directional component 4, and the ventilation pipe 13 is smoothly and steadily sent out of the guide tube 21' through the second directional component 5, thereby avoiding scratches and wear of the ventilation pipe 13 when passing through the tunnel lining trolley, and making the ventilation pipe 13 free of bending and wrinkles, extending the service life of the ventilation pipe 13, and achieving good ventilation effect. It can also realize that the ventilation pipe 13 can pass through the tunnel lining trolley smoothly and steadily, with good flexibility and simple and convenient operation.

[0053] The above embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles of the patent application scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A tunnel lining trolley through which a ventilation pipe can slide smoothly, comprising a main portal, characterized in that: It also includes a guide pipe and a smooth assembly for the ventilation pipe to pass through, and the guide pipe is installed on the main door frame; The smooth sliding assembly includes a plurality of pulleys, the plurality of pulleys are arranged in the circumferential direction of the guide tube, and one of the pulleys can be rotatably arranged around a rotation axis; The rotating shaft is arranged on the tube wall of the guide tube, and the axis of the rotating shaft is arranged tangentially to the tube wall, and the outer peripheral wall of each pulley protrudes from the inner hole peripheral surface of the tube wall; The guide tube comprises a straight section, a first curved section and a second curved section, the straight section is mounted on the main portal, the first end of the first curved section is smoothly connected to the first end of the straight section away from the second curved section, and the first end of the second curved section is smoothly connected to the second end of the straight section away from the first curved section; The guide tube further comprises a first closing section, one end of which is connected to the second end of the first curved section away from the straight extension section, and the inner hole diameter of the first end of the first closing section close to the first curved section is smaller than the inner hole diameter of the second end of the first closing section away from the first curved section; The tunnel lining trolley through which the ventilation pipe can smoothly pass also includes a first orientation assembly, the first orientation assembly includes a plurality of first orientation wheels, the plurality of first orientation wheels are arranged in the circumferential direction of the first closing section, and one of the first orientation wheels can be rotatably arranged around a first rotation axis; The first rotating shaft is arranged on the first annular wall of the first closing section, and the axis of the first rotating shaft is arranged tangent to the first annular wall. The outer peripheral wall of each first directional wheel protrudes from the inner hole peripheral surface of the first annular wall.

2. A tunnel lining trolley with a ventilation pipe that can smoothly pass through according to claim 1, characterized in that: The plurality of pulleys are evenly arranged in the circumferential direction of the guide tube.

3. The tunnel lining trolley through which the ventilation pipe can smoothly pass according to claim 1 is characterized in that: The number of the smooth components is more than two groups, and the multiple groups of the smooth components are arranged side by side in the extension direction of the guide tube.

4. The tunnel lining trolley through which the ventilation pipe can smoothly pass according to claim 3 is characterized in that: The plurality of pulleys of two adjacent groups of the smoothing components are arranged alternately in the circumferential direction of the guide tube.

5. The tunnel lining trolley through which the ventilation pipe can smoothly pass according to claim 3 is characterized in that: The plurality of pulleys of two adjacent groups of the smooth components are arranged in a one-to-one correspondence in the extending direction of the guide tube.

6. The tunnel lining trolley through which the ventilation pipe can smoothly pass according to claim 1 is characterized in that: The guide tube also includes a second closing section, one end of which is connected to the second end of the second curved section away from the straight extension section, and the inner hole diameter of the first end of the second closing section close to the second curved section is smaller than the inner hole diameter of the second end of the second closing section away from the second curved section.

7. The tunnel lining trolley through which the ventilation pipe can smoothly pass according to claim 6 is characterized in that: The tunnel lining trolley through which the ventilation pipe can smoothly pass also includes a second orientation assembly, wherein the second orientation assembly includes a plurality of second orientation wheels, the plurality of second orientation wheels are arranged in the circumferential direction of the second closing section, and one of the second orientation wheels can be rotatably arranged around a second rotation axis; The second rotating shaft is arranged on the second annular wall of the second closing section, and the axis of the second rotating shaft is arranged tangent to the second annular wall. The outer peripheral wall of each second directional wheel protrudes from the inner hole peripheral surface of the second annular wall.

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