Ventilation system for tunnel construction

Abstract

The invention discloses a tunnel construction ventilation system which comprises a ventilation assembly, the ventilation assembly comprises a ventilation pipe, a splicing pipe, a moving part, a flow guide pipe and fasteners, the splicing pipe is fixed to the end of the ventilation pipe, the moving part is arranged in a tunnel, the flow guide pipe is arranged at the end of the splicing pipe, and the fasteners are arranged at the bottoms of the two sides of the moving part; and the adjusting assembly is arranged on the flow guide pipe and comprises a drainage piece, a pollution discharge piece, a telescopic piece, a plugging piece and a connecting piece, and the drainage piece is fixed to the end of the flow guide pipe. Fresh air is introduced into the construction tunnel through the ventilation assembly, meanwhile, through cooperation between the ventilation assembly and the adjusting assembly, the ventilation pipeline can be synchronously prolonged in the construction advancing process, and the air quality of the working environment of constructors is greatly guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel construction, in particular to a tunnel construction ventilation system. BACKGROUND

[0002] Tunnel is a buried engineering structure in stratum, which is a form of human utilization of underground space. Tunnel can be divided into traffic tunnel, hydraulic tunnel, municipal tunnel, mine tunnel and military tunnel. The structure of tunnel includes main building and auxiliary equipment. The main building is composed of tunnel body and tunnel portal. The auxiliary equipment includes car avoidance hole, fire fighting facility, emergency communication and drainage and waterproof facility. Long tunnel has special ventilation and lighting equipment. In order to ensure the physical and mental health of construction personnel, ventilation system must be equipped to supply fresh air into tunnel during construction. The ventilation pipeline in prior art is generally straight into tunnel. However, the pipeline cannot be continuously extended during the continuous construction of construction personnel. The pipeline can only be extended after reaching a certain distance, which causes certain influence on subsequent construction environment. In addition, the dust in tunnel is not treated enough, which further influences the working environment of construction personnel. SUMMARY

[0003] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the application in order to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application. Such simplifications or omissions cannot be used to limit the scope of the present application.

[0004] In view of the above and / or existing problems in tunnel construction ventilation system, the present application is proposed.

[0005] Therefore, the problem to be solved by the present application is that the ventilation pipeline in prior art is generally straight into tunnel. However, the pipeline cannot be continuously extended during the continuous construction of construction personnel. The pipeline can only be extended after reaching a certain distance, which causes certain influence on subsequent construction environment.

[0006] To solve the above technical problems, the present application provides the following technical solutions: a tunnel construction ventilation system, comprising a ventilation assembly and an adjusting assembly, wherein the ventilation assembly comprises a ventilation pipe, a splicing pipe, a moving piece, a flow guide pipe and a fastener, the splicing pipe is fixed to the end of the ventilation pipe, the moving piece is arranged in the tunnel, the flow guide pipe is arranged at the end of the splicing pipe, and the fastener is arranged at the bottom of the moving piece on both sides; and the adjusting assembly is arranged on the flow guide pipe and comprises a flow guide piece, a pollution discharge piece, an extension piece, a sealing piece and a connecting piece, the flow guide piece is fixed to the end of the flow guide pipe, the pollution discharge piece is arranged on the moving piece, the extension piece is arranged in the flow guide pipe, the sealing piece is arranged on the extension piece, and the connecting piece is arranged between the fastener and the sealing piece.

[0007] As a preferred scheme of the tunnel construction ventilation system, the moving piece comprises a workbench, a support column and universal wheels, the workbench is located in the tunnel, the support column is fixed to the bottom of the workbench at four corners, and the universal wheels are fixed to the bottom end of the support column.

[0008] As a preferred scheme of the tunnel construction ventilation system, the fastener comprises a fastening plate, a movable plate, a support plate and a threaded rod, the fastening plate is fixed to the inner side of the support column, the movable plate is slid on the inner side of the support column and is located at the bottom of the fastening plate, the support plate is fixed to the bottom of the movable plate on both sides, the threaded rod is rotationally connected to the fastening plate and is threadedly connected with the movable plate, and the flow guide pipe is fixed to the fastening plate.

[0009] As a preferred scheme of the tunnel construction ventilation system, the fastener further comprises a rotating plate, a baffle and a limiting block, the rotating plate is rotationally connected to the bottom end of the support plate, the baffle is fixed to the bottom of one side of the support plate, and the limiting block is fixed to the other side of the support plate and cooperates with the rotating plate.

[0010] As a preferred scheme of the tunnel construction ventilation system, the flow guide piece comprises a flow guide plate and a shunt plate, the flow guide plate is fixed to the end of the inner wall of the flow guide pipe, and the shunt plate is fixed in the ventilation pipe and the splicing pipe.

[0011] As a preferred scheme of the tunnel construction ventilation system, the pollution discharge piece comprises a dust collection box, a dust suction pipe and a pollution discharge pipe, the dust collection box is fixed to the outer side of the support column, one side of the dust collection box is provided with a dust collection hole, the dust suction pipe is in communication with the dust collection box and the flow guide pipe at both ends, and the pollution discharge pipe is fixed to the end of the ventilation pipe.

[0012] As a preferred scheme of the tunnel construction ventilation system, the telescopic part comprises a shaped ring, a fixed tube, a telescopic rod and a shaped rod, the shaped ring is fixed in the flow guide pipe, the fixed tube is fixed in one of the shaped rings, the telescopic rod is fixed in the other shaped ring and slides in the fixed tube, and the shaped rod is fixed on the inner wall of the shaped ring and fixed with the fixed tube and the telescopic rod.

[0013] As a preferred scheme of the tunnel construction ventilation system, the blocking part comprises a blocking tube and a movable ball, a through hole is formed in the fixed tube, the blocking tube is fixed on the top of the fixed tube, and an inclined hole is formed in the blocking tube, and the movable ball slides in the blocking tube.

[0014] As a preferred scheme of the tunnel construction ventilation system, the blocking part further comprises a top plate, a connecting rod and a reset spring, the top plate is located above the blocking tube, the connecting rod is fixed at both ends of the top plate and the movable ball, and the reset spring is fixed at both ends of the top plate and the blocking tube.

[0015] As a preferred scheme of the tunnel construction ventilation system, the connecting part comprises a pressing tube and a connecting rope, a connecting hole is formed in the fastening plate, the pressing tube slides in the connecting hole and is in contact with the top plate at the bottom end, the connecting rope is fixed at both ends of the fastening plate and the threaded rod, a guide hole is formed in the pressing tube, and the connecting rope slides in the guide hole.

[0016] The present application has the advantages that the ventilation assembly introduces fresh air into the construction tunnel, and through cooperation with the adjusting assembly, the ventilation pipe can be extended synchronously during the construction process, thereby greatly ensuring the air quality of the working environment of the construction personnel. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0018] Fig. 1 It is the overall structure diagram of the tunnel construction ventilation system.

[0019] Fig. 2 It is the ventilation assembly diagram of the tunnel construction ventilation system.

[0020] Fig. 3 It is the fastener sectional view of the tunnel construction ventilation system.

[0021] Fig. 4 Figure 1 is a sectional view of a tunnel construction ventilation system;

[0022] Fig. 5 Figure 2 is a sectional view of an extension piece of the tunnel construction ventilation system;

[0023] Fig. 6 Figure 3 is a sectional view of a sealing piece of the tunnel construction ventilation system;

[0024] Fig. 7 Figure 4 is a structural view of a pollution discharge piece of the tunnel construction ventilation system. DETAILED DESCRIPTION

[0025] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0026] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details given herein, that the present application can be practiced with other different ways, and that the present application is not limited to the specific embodiments disclosed below.

[0027] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0028] Embodiment 1

[0029] Reference Figs. 1-4 For the first embodiment of the present application, the embodiment provides a tunnel construction ventilation system, which comprises a ventilation assembly 100 and an adjusting assembly 200. The ventilation assembly 100 continuously delivers fresh air into the tunnel, and the adjusting assembly 200 cooperates with the ventilation assembly 100 to extend the air delivery position while the construction personnel are working, thereby greatly ensuring the working environment of the construction personnel.

[0030] Specifically, the ventilation assembly 100 comprises a ventilation pipe 101, a splicing pipe 102, a moving piece 103, a flow guide pipe 104 and a fastener 105. The splicing pipe 102 is fixed to the end of the ventilation pipe 101, the moving piece 103 is arranged in the tunnel, the flow guide pipe 104 is arranged at the end of the splicing pipe 102, and the fastener 105 is arranged at the bottom of both sides of the moving piece 103.

[0031] The ventilation pipe 101 is provided with a fan at one end outside the tunnel, which is used to deliver fresh air into the tunnel. The spliced pipe 102 is provided with multiple sections, which can be extended according to the distance of the construction to extend the outlet of the fresh air. The moving part 103 is used to drive the flow guide pipe 104 to move, which is convenient for adjusting the outlet of the fresh air according to the construction depth. The flow guide pipe 104 is divided into three parts, the two ends of which are made of hard material to improve the overall strength and stability. The middle part is made of telescopic material, which can be extended and shortened by artificial pulling, so as to facilitate the construction personnel to adjust the outlet of the fresh air in the process of walking. The fastener 105 is used to fix the moving part 103, so that it is more stable during the construction process. At the same time, the flow guide pipe 104 can be locked to avoid the flow guide pipe 104 moving due to accidental touch during the construction, which affects the stability of the connection between the flow guide pipe 104 and the spliced pipe 102, and also affects the air outlet and dust collection. The connecting ring is fixed at one end of the connection between the flow guide pipe 104 and the spliced pipe 102, which is convenient for fixing the two.

[0032] The adjusting assembly 200 is arranged on the flow guide pipe 104 and includes a drainage part 201, a pollution discharge part 202, a telescopic part 203, a blocking part 204 and a connecting part 205. The drainage part 201 is fixed to the end of the flow guide pipe 104. The pollution discharge part 202 is arranged on the moving part 103. The telescopic part 203 is arranged in the flow guide pipe 104. The blocking part 204 is arranged on the telescopic part 203. The connecting part 205 is arranged between the fastener 105 and the blocking part 204.

[0033] The drainage part 201 is used to divide the ventilation pipe 101 and the spliced pipe 102 into two parts, one part delivers fresh air, and the other part guides the dirty air and dust into the outside of the tunnel, so as to improve the freshness of the air in the tunnel and the environmental quality. The pollution discharge part 202 is used to discharge the dirty air and dust in the working environment from the inside of the ventilation pipe 101 and the spliced pipe 102. The telescopic part 203 is used to adjust the length of the flow guide pipe 104. The blocking part 204 is used to fix the length of the flow guide pipe 104, so that it cannot move and stretch during the construction process, thereby avoiding the bending caused by accidental touch or foreign object impact. The connecting part 205 is arranged to connect the fastener 105 and the blocking part 204, that is, after the moving part 103 is fixed by the fastener 105, the flow guide pipe 104 is fixed by the blocking part 204, so that it cannot stretch.

[0034] Embodiment 2

[0035] Reference Figs. 1-3 This is the second embodiment of the application, which is based on the previous embodiment.

[0036] Specifically, the moving part 103 comprises a workbench 103a, support columns 103b and universal wheels 103c, the workbench 103a is located in the tunnel, the support columns 103b are fixed to the bottom of the four corners of the workbench 103a, and the universal wheels 103c are fixed to the bottom end of the support columns 103b.

[0037] The workbench 103a is rectangular, which can be set according to actual conditions, the construction area is below the workbench 103a, and a construction area can also be arranged at the top of the workbench 103a, so as to facilitate the work personnel to work at a high place, the support columns 103b are provided with four, which are used for supporting the whole workbench 103a, and the universal wheels 103c are arranged, so that the movement of the device is more convenient, so that the work personnel can push the workbench 103a to follow the movement in the process of construction.

[0038] The fastener 105 comprises a fastening plate 105a, a movable plate 105b, a support plate 105c and a threaded rod 105d, the fastening plate 105a is fixed to the inner side of the support column 103b, the movable plate 105b slides on the inner side of the support column 103b and is located at the bottom of the fastening plate 105a, the support plate 105c is fixed to the bottom of the movable plate 105b on both sides, the threaded rod 105d is rotationally connected to the fastening plate 105a and is in threaded connection with the movable plate 105b, and the flow guide pipe 104 is fixed to the fastening plate 105a.

[0039] The fastening plate 105a is divided into two parts, one part is rectangular and fixed between the two support columns 103b, and the other part is annular and used for fixing the flow guide pipe 104, so that the end part can move with the support column 103b, the other part is also fixed between the two support columns 103b on the other side, the threaded rod 105d is rotationally connected to the fastening plate 105a through a bearing, the movable plate 105b is rectangular, when the threaded rod 105d rotates, the movable plate 105b can move up and down, because the two sides are in close contact with the support column 103b, the rotation does not occur when moving up and down, and a limiting strip can also be arranged on the two sides for further limiting, the support plate 105c is rectangular and symmetrically distributed on the bottom of the movable plate 105b on both sides, when the bottom of the universal wheel 103c is separated from the ground, the device is supported through the support plate 105c, so that the stability is higher.

[0040] The fastener 105 further comprises a rotating plate 105e, a baffle 105f and a limiting block 105g, the rotating plate 105e is rotationally connected to the bottom end of the support plate 105c, the baffle 105f is fixed to the bottom of one side of the support plate 105c, and the limiting block 105g is fixed to the other side of the support plate 105c and cooperates with the rotating plate 105e.

[0041] The rotating plate 105e is rotatably connected to the bottom end of the supporting plate 105c through a hinge seat, one side of which is inclined and the other side is flat. In the initial state, the rotating plate 105e has a certain angle with the supporting plate 105c, and is inclined outward. Therefore, when the movable plate 105b and the supporting plate 105c move downward, the end of the rotating plate 105e first contacts the ground and pushes the impurities such as gravel below it outward until the inclined surface of the rotating plate 105e contacts the baffle 105f. At this time, the flat surface of the rotating plate 105e contacts the ground to achieve the purpose of stable support. The limiting block 105g is used to limit the rotating plate 105e. When the rotating plate 105e is separated from the ground, the torsional spring arranged inside the rotating plate 105e will drive it to reset. The torsional spring is not shown in the figure. When resetting, the rotating plate 105e is limited in the inclined position by the limiting block 105g until the limiting block 105g contacts the rotating plate 105e. At this time, the limiting block 105g limits the rotating plate 105e in the inclined position to facilitate subsequent support.

[0042] Embodiment 3

[0043] With reference to Figs. 2-7 For the third embodiment of the present application, the embodiment is based on the previous two embodiments.

[0044] Specifically, the drainage member 201 includes a drainage plate 201a and a shunt plate 201b. The drainage plate 201a is fixed to the inner wall end of the flow guide pipe 104, and the shunt plate 201b is fixed to the inside of the ventilation pipe 101 and the spliced pipe 102.

[0045] The drainage plate 201a is in the shape of L and is located inside the hard material at the end of the flow guide pipe 104. Fresh air enters the flow guide pipe 104 from one side of the drainage plate 201a, and the position of the air outlet of the flow guide pipe 104 is inclined, which facilitates the fresh air to be sprayed from the inclined side to the construction area of the construction personnel. The shunt plate 201b divides the inside of the ventilation pipe 101 and the spliced pipe 102 into two areas. One area is used to blow fresh air into the flow guide pipe 104, and the other area is in communication with the closed side of the drainage plate 201a and is used to discharge dirty air and dust and other impurities from the tunnel.

[0046] The pollution discharge member 202 includes a dust collection box 202a, a dust suction pipe 202b, and a pollution discharge pipe 202c. The dust collection box 202a is fixed to the outside of the supporting column 103b, and one side of the dust collection box 202a is provided with a dust collection hole S. The two ends of the dust suction pipe 202b are respectively in communication with the dust collection box 202a and the flow guide pipe 104. The pollution discharge pipe 202c is fixed to the end of the ventilation pipe 101.

[0047] The dust collecting box 202a is in a U shape as a whole, a plurality of dust collecting holes S can guide most of the dirty air and dust squeezed out by fresh air in the construction area into the dust collecting box 202a, a filtering screen or the like for filtering dust and impurities in the air can be arranged inside the dust collecting box 202a, a cover is arranged at the bottom of the dust collecting box 202a and fixed by bolts or the like, the cover can be opened to clean the inside of the dust collecting box 202a, the dust suction pipe 202b is in an L shape, one end of the dust suction pipe 202b is communicated with the dust collecting box 202a, the other end of the dust suction pipe 202b is communicated with the flow guide pipe 104 and located at a position inside the flow guide pipe 104 closed by the guide plate 201a, the dirt discharging pipe 202c is arranged at the tunnel entrance and communicated with the dirt discharging area inside the ventilation pipe 101, and is used to discharge the dirty air and dust and impurities, and a fan is arranged in the dust suction pipe 202b to improve the suction force of the impurities.

[0048] The telescopic part 203 includes a shaping ring 203a, a fixed pipe 203b, a telescopic rod 203c and a shaping rod 203d, the shaping ring 203a is fixed in the flow guide pipe 104, the fixed pipe 203b is fixed in one side shaping ring 203a, the telescopic rod 203c is fixed at the end of the other side shaping ring 203a and slides in the fixed pipe 203b, and the shaping rod 203d is fixed on the inner wall of the shaping ring 203a and fixed with the fixed pipe 203b and the telescopic rod 203c.

[0049] The shaping ring 203a is fixed at both ends of the telescopic part of the middle part of the flow guide pipe 104 to improve the overall strength, the ends of the fixed pipe 203b and the telescopic rod 203c are located in the two shaping rings 203a respectively, and the two are fixed by the plurality of shaping rods 203d, and the other end of the fixed pipe 203b is also fixed with a group of shaping rods 203d to support the middle part of the flow guide pipe 104 to improve the stability and prevent the flow guide pipe 104 from being collapsed under the influence of wind pressure during use, the end of the telescopic rod 203c fixed in the fixed pipe 203b is fixed with a piston to compress the air in the fixed pipe 203b, and the end of the fixed pipe 203b is connected with a sealing block by threads to improve the air tightness of the inside.

[0050] The blocking part 204 includes a blocking pipe 204a and a movable ball 204b, a through hole K is formed on the fixed pipe 203b, the blocking pipe 204a is fixed on the top of the fixed pipe 203b, a slant hole M is formed in the blocking pipe 204a, and the movable ball 204b slides in the blocking pipe 204a.

[0051] The through hole K is located in the blocking tube 204a, and the movable ball 204b can block the inclined hole M and the through hole K when moving downward, so that the telescopic rod 203c and the piston cannot move inside the fixed tube 203b, that is, the flow guide pipe 104 is fixed and cannot be telescoped, avoiding the accidental movement of the flow guide pipe 104 during use. When the movable ball 204b is separated from the inclined hole M, the air inside the fixed tube 203b flows, and the telescopic rod 203c can slide inside it.

[0052] The blocking member 204 further comprises a top plate 204c, a connecting rod 204d, and a reset spring 204e. The top plate 204c is located above the blocking tube 204a, the connecting rod 204d is fixed at both ends of the top plate 204c and the movable ball 204b, and the reset spring 204e is fixed at both ends of the top plate 204c and the blocking tube 204a.

[0053] One end of the connecting rod 204d is fixed to the top of the movable ball 204b, and when the top plate 204c moves up and down, it can drive the connecting rod 204d and the movable ball 204b to move. The reset spring 204e exerts an upward thrust on the top plate 204c, so that it can drive the movable ball 204b to separate from the inclined hole M in the initial state.

[0054] The connecting member 205 comprises a pressing tube 205a and a connecting rope 205b. The fastening plate 105a is provided with a connecting hole V, and the pressing tube 205a slides in the connecting hole V, with its bottom end in contact with the top plate 204c. The connecting rope 205b is fixed at both ends of the fastening plate 105a and the threaded rod 105d, and the pressing tube 205a is provided with a guide hole N. The connecting rope 205b slides in the guide hole N.

[0055] The pressing tube 205a slides in the connecting hole V, with its bottom end extending into the flow guide pipe 104 and in contact with the top plate 204c. When it moves downward, it can drive the connecting rod 204d and the movable ball 204b to move downward, and block the inclined hole M through the movable ball 204b. The connecting rope 205b is an elastic rope. When it is necessary to fix the workbench 103a and the support column 103b, the threaded rod 105d is rotated. At this time, the rotation of the threaded rod 105d winds the connecting rope 205b around the surface of the threaded rod 105d, so that the connecting rope 205b and the guide hole N can drive the pressing tube 205a to move downward. When the threaded rod 105d is rotated in the opposite direction, the connecting rope 205b is reset due to its elastic force, and the reset spring 204e drives the top plate 204c and the pressing tube 205a to move upward.

[0056] In use, the workbench 103a and the support column 103b are moved to a designated construction area in the tunnel, and then the ventilation pipe 101, the splicing pipe 102 and the flow guide pipe 104 are connected, at this time the flow guide pipe 104 is the shortest length, then the threaded rod 105d is manually rotated, the movable plate 105b is driven downward by the threaded rod 105d, the end of the rotating plate 105e is first in contact with the ground, and the impurities such as gravel below it are pushed outward, until the inclined surface thereof is in contact with the baffle 105f, at this time the plane on the rotating plate 105e is in contact with the ground, so that the workbench 103a and the support column 103b can be supported, and they are more stable in the construction area, while the threaded rod 105d is rotating, the connecting rope 205b is wound on the surface of the threaded rod 105d, so that the pressing pipe 205a is driven downward by the connecting rope 205b and the guide hole N, so that the movable ball 204b closes the inclined hole M, so that the length of the flow guide pipe 104 is fixed, and the bending movement or deviation of the flow guide pipe 104 during construction is avoided, and the discharge of fresh air is affected.

[0057] When the construction personnel are walking in the construction, first, the threaded rod 105d is reversely rotated, the movable plate 105b is driven upward by the threaded rod 105d, until the bottom of the universal wheel 103c is in contact with the ground, so that the equipment can be moved by the universal wheel 103c, at the same time, the connecting rope 205b is reset due to the elastic force thereof, the top plate 204c and the pressing pipe 205a are driven upward by the reset spring 204e, and the movable ball 204b is separated from the inclined hole M, at this time the construction personnel can drive the flow guide pipe 104 to be elongated synchronously during walking, so that the outlet of fresh air is always located in the construction area, which greatly guarantees the construction environment of the construction personnel.

[0058] When the flow guide pipe 104 is stretched to the longest length, it is disassembled from the splicing pipe 102, and a lengthened splicing pipe 102 is installed for subsequent use.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A tunneling ventilation system characterized by: include, A ventilation assembly (100) includes a ventilation duct (101), a splicing pipe (102), a movable component (103), a guide pipe (104), and fasteners (105). The splicing pipe (102) is fixed to the end of the ventilation duct (101), the movable component (103) is disposed within the tunnel, the guide pipe (104) is disposed at the end of the splicing pipe (102), and the fasteners (105) are disposed at the bottom of both sides of the movable component (103). An adjustment component (200) is disposed on the guide pipe (104) and includes a diverting component (201), a draining component (202), a telescopic component (203), a sealing component (204), and a connecting component (205). The diverting component (201) is fixed to the end of the guide pipe (104), the draining component (202) is disposed on the moving component (103), the telescopic component (203) is disposed inside the guide pipe (104), the sealing component (204) is disposed on the telescopic component (203), and the connecting component (205) is disposed between the fastener (105) and the sealing component (204).

2. The tunneling ventilation system of claim 1, wherein: The movable component (103) includes a workbench (103a), a support column (103b), and casters (103c). The workbench (103a) is located inside the tunnel. The support column (103b) is fixed to the four corners of the bottom of the workbench (103a), and the casters (103c) are fixed to the bottom of the support column (103b).

3. The tunnel construction ventilation system as described in claim 2, characterized in that: The fastener (105) includes a fastening plate (105a), a movable plate (105b), a support plate (105c), and a threaded rod (105d). The fastening plate (105a) is fixed to the inner side of the support column (103b). The movable plate (105b) slides on the inner side of the support column (103b) and is located at the bottom of the fastening plate (105a). The support plate (105c) is fixed to both sides of the bottom of the movable plate (105b). The threaded rod (105d) is rotatably connected to the fastening plate (105a) and threadedly connected to the movable plate (105b). The guide tube (104) is fixed to the fastening plate (105a).

4. The tunnel construction ventilation system as described in claim 3, characterized in that: The fastener (105) also includes a rotating plate (105e), a baffle (105f), and a limiting block (105g). The rotating plate (105e) is rotatably connected to the bottom end of the support plate (105c). The baffle (105f) is fixed to the bottom of one side of the support plate (105c). The limiting block (105g) is fixed to the other side of the support plate (105c) and cooperates with the rotating plate (105e).

5. The tunnel construction ventilation system as described in claim 3 or 4, characterized in that: The diversion component (201) includes a diversion plate (201a) and a diversion plate (201b). The diversion plate (201a) is fixed to the end of the inner wall of the guide pipe (104), and the diversion plate (201b) is fixed inside the ventilation pipe (101) and the splicing pipe (102).

6. The tunnel construction ventilation system as described in claim 5, characterized in that: The sewage discharge component (202) includes a dust collection box (202a), a suction pipe (202b), and a sewage discharge pipe (202c). The dust collection box (202a) is fixed to the outside of the support column (103b) and has a dust collection hole (S) on one side. The two ends of the suction pipe (202b) are respectively connected to the dust collection box (202a) and the guide pipe (104). The sewage discharge pipe (202c) is fixed to the end of the ventilation pipe (101).

7. The tunnel construction ventilation system as described in claim 6, characterized in that: The telescopic component (203) includes a shaping ring (203a), a fixing tube (203b), a telescopic rod (203c), and a shaping rod (203d). The shaping ring (203a) is fixed inside the guide tube (104). The fixing tube (203b) is fixed inside one side of the shaping ring (203a). The end of the telescopic rod (203c) is fixed inside the other side of the shaping ring (203a) and slides inside the fixing tube (203b). The shaping rod (203d) is fixed to the inner wall of the shaping ring (203a) and is fixed to the fixing tube (203b) and the telescopic rod (203c).

8. The tunnel construction ventilation system as described in claim 7, characterized in that: The sealing component (204) includes a sealing tube (204a) and a movable ball (204b). The fixed tube (203b) has a through hole (K). The sealing tube (204a) is fixed to the top of the fixed tube (203b) and has an oblique hole (M) inside. The movable ball (204b) slides inside the sealing tube (204a).

9. The tunnel construction ventilation system as described in claim 8, characterized in that: The sealing component (204) further includes a top plate (204c), a connecting rod (204d), and a return spring (204e). The top plate (204c) is located above the sealing tube (204a). The two ends of the connecting rod (204d) are fixed to the top plate (204c) and the movable ball (204b) respectively. The two ends of the return spring (204e) are fixed to the top plate (204c) and the sealing tube (204a) respectively.

10. The tunnel construction ventilation system as described in claim 9, characterized in that: The connector (205) includes a pressure tube (205a) and a connecting rope (205b). The fastening plate (105a) has a connecting hole (V). The pressure tube (205a) slides in the connecting hole (V) and its bottom end contacts the top plate (204c). The two ends of the connecting rope (205b) are fixed to the fastening plate (105a) and the threaded rod (105d) respectively. The pressure tube (205a) has a guide hole (N) and the connecting rope (205b) slides in the guide hole (N).

Images