Ventilation system for tunnel pavement paving operation

Abstract

The utility model provides a ventilation system for tunnel pavement paving operation, and relates to the technical field of tunnel construction, the ventilation system comprises a slide rail, a telescopic air pipe, a fan and a paver synchronous moving mechanism, the slide rail comprises a fixed guide rail, a moving platform deck is arranged in the fixed guide rail in a sliding mode, and the fixed guide rail is used for being fixed on an external base body; at least the outlet end of the telescopic air pipe is fixed on the movable carrying table; the fan is arranged in the outlet end of the telescopic air pipe; and the paver synchronous moving mechanism is connected with the moving platform deck, so that the moving platform deck moves along with the position of the paver. According to the ventilation system, the problem that the ventilation of the working area of the paver is insufficient due to the fact that the air pipe of the ventilation system in the prior art cannot move along with the paver is solved, real-time ventilation can be carried out on the working area behind the paver, and asphalt smoke or dust released in the working process of the paver can be timely discharged out of a tunnel.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field especially relates to a ventilation system for tunnel pavement paving operation. BACKGROUND

[0002] In the process of tunnel construction, with the increase of tunneling depth, the construction of the tunnel hole arrangement is gradually complex, dust, toxic and harmful gases and other pollutants are difficult to remove, leading to the deterioration of the environment in the hole, therefore, the ventilation problem in the construction process becomes a prominent problem affecting the safety and quality of tunnel construction, at present, the ventilation system is usually used to carry out the ventilation in the process of tunnel construction.

[0003] In the process of paving operation in the tunnel, with the continuous forward movement of the paver during operation, a large amount of asphalt smoke or dust will be released behind the paver, which needs to be discharged to the outside of the tunnel in time to avoid the spread of asphalt smoke or dust to the breathing zone of the construction personnel, endangering the health of the construction personnel.

[0004] However, the air pipe of the traditional ventilation system is fixed and cannot move with the paver, resulting in that the air pipe cannot cover the working surface of the paver in real time, so that the working area of the paver is not ventilated enough, and the released asphalt smoke or dust cannot be discharged to the outside of the tunnel in time.

[0005] Based on this, the utility model designs a ventilation system for tunnel pavement paving operation to solve the problems in the background art. CONTENT OF THE UTILITY MODEL

[0006] In view of the deficiencies in the prior art, the utility model provides a ventilation system for tunnel pavement paving operation, which solves the problem that the air pipe of the ventilation system in the prior art cannot move with the paver, resulting in that the working area of the paver is not ventilated enough.

[0007] According to the embodiment of the utility model, a ventilation system for tunnel pavement paving operation comprises a sliding rail, an extendable air pipe, a fan and a paver synchronous movement mechanism, wherein:

[0008] The sliding rail comprises a fixed guide rail, and a moving platform is slidably arranged in the fixed guide rail; the fixed guide rail is used for fixing on an external base;

[0009] The extendable air pipe is fixed at least at the outlet end on the moving platform;

[0010] The fan is arranged in the outlet end of the extendable air pipe;

[0011] The paver synchronous movement mechanism is connected with the moving platform, so that the moving platform moves with the position of the paver.

[0012] The technical principle of the utility model is:

[0013] When the tunnel paving work is carried out by the paver, the mobile carrier is driven to move by the paver synchronous moving mechanism, so that the mobile carrier can move synchronously with the paver, thereby driving the outlet end of the telescopic air pipe to move with the paver, realizing automatic adjustment of the outlet end position of the telescopic air pipe, when the outlet end position of the telescopic air pipe is automatically adjusted, the position of the fan at the outlet end position in the telescopic air pipe will also change, so that the fan at the outlet end position in the telescopic air pipe can move synchronously with the paver, to realize real-time ventilation for the working area behind the paver.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] By adopting the structure that the slide rail is combined with the telescopic air pipe, the outlet end position in the telescopic air pipe can be synchronously moved according to the movement of the paver, realizing real-time coverage of the working surface of the paver by the telescopic air pipe, which solves the problem that the air pipe of the ventilation system cannot move with the paver in the prior art, leading to insufficient ventilation of the working area of the paver, can realize real-time ventilation for the working area behind the paver, and expels the asphalt smoke or dust released in the paver working process to the outside of the tunnel in time, avoiding the situation that the asphalt smoke or dust spreads to the breathing zone of the construction personnel, endangering the health of the construction personnel.

[0016] Preferably, the paver synchronous moving mechanism comprises a traction arm, one end of the traction arm is connected with the mobile carrier, and the other end is used for fixing on the paver.

[0017] Preferably, the slide rail is a transmission type slide rail.

[0018] Preferably, the paver synchronous moving mechanism comprises a power driving mechanism, a control system and a paver position sensing module; the paver position sensing module is installed on the telescopic air pipe or the mobile carrier, is used for acquiring paver position information, and is transmitted to the control system, the control system transmits a control signal to the power driving mechanism, to trigger the action of controlling the power driving mechanism, and the power driving mechanism drives the mobile carrier to move through a carrier transmission structure.

[0019] Preferably, the paver position sensing module comprises a laser position sensor.

[0020] Preferably, the power driving mechanism comprises a motor.

[0021] Preferably, an electrically controlled switch is further included, the fan is connected with a fan power supply through a switch end of the electrically controlled switch, and a control end of the electrically controlled switch is connected with an output end of the control system.

[0022] Preferably, the carrier transmission structure includes one of a screw rod, a rack, and a belt.

[0023] Preferably, the telescopic air pipe is a PVC telescopic air pipe, an aluminum foil air pipe, or a rigid air pipe with multiple sections.

[0024] Preferably, a filter plate is arranged at each of an inlet end and an outlet end of the telescopic air pipe, for filtering dust inside and outside the tunnel to avoid the dust from entering the telescopic air pipe. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a structural schematic view of a ventilation system for tunnel pavement paving operation according to an embodiment of the present application.

[0026] Figure 2 FIG. 2 is a structural schematic view of a ventilation system for tunnel pavement paving operation according to another embodiment of the present application.

[0027] Figure 3 FIG. 3 is a sectional view along the telescopic air pipe according to the embodiment of the present application.

[0028] Figure 4 FIG. 4 is a sectional view along B according to the embodiment of the present application. Figure 3

[0029] Figure 5 FIG. 5 is a control principle diagram of the ventilation system for tunnel pavement paving operation according to the embodiment of the present application.

[0030] Figure 6 FIG. 6 is a sectional view along the filter plate according to the embodiment of the present application.

[0031] In the above drawings: 1, slide rail; 2, telescopic air pipe; 3, fan; 4, paving machine synchronous moving mechanism; 5, carrier transmission structure; 6, electrically controlled switch; 7, filter plate; 11, fixed guide rail; 12, movable carrier; 21, rigid air pipe; 22, limiting ring; 41, traction arm; 42, power driving mechanism; 43, control system; 44, paving machine position sensing module. DETAILED DESCRIPTION

[0032] The technical solutions of the present application are further described below in combination with the drawings and embodiments.

[0033] Embodiment One

[0034] As shown in FIG. 1, the ventilation system for tunnel pavement paving operation according to the embodiment of the present application includes a telescopic air pipe 2, a fan 3, a carrier transmission structure 5, an electrically controlled switch 6, and a filter plate 7. Figure 1 ​The utility model discloses a ventilation system for tunnel pavement paving operation, including: slide rail 1, telescopic air pipe 2, fan 3 and paving machine synchronous movement mechanism 4, wherein:

[0035] The slide rail 1 includes fixed guide rail 11, the mobile platform 12 is arranged in the slide rail in the fixed guide rail 11, and the fixed guide rail 11 is used for fixing on the external matrix, and specifically, the fixed guide rail 11 is fixedly arranged at the top in the tunnel, and the mobile platform 12 is located in the fixed guide rail 11 and slides left and right in the fixed guide rail 11.

[0036] The telescopic air pipe 2 is fixed at least on the outlet end on the mobile platform 12, and specifically, the inlet end of the telescopic air pipe 2 is fixedly installed at the tunnel entrance, and the outlet end is fixed on the mobile platform 12, when the mobile platform 12 slides left and right in the fixed guide rail 11, the outlet end of the telescopic air pipe 2 will move left and right along with the mobile platform 12.

[0037] The fan 3 is arranged in the outlet end of the telescopic air pipe 2, and specifically, the fan 3 is also arranged at the inlet end of the telescopic air pipe 2, for the air outside the tunnel is introduced into the operation area in the tunnel, by installing two fans 3 on the two ends of the telescopic air pipe 2 respectively, so that fresh air can be transported to the operation area, and harmful gas and dust can be discharged reversely, and the ventilation direction of the fan 3 is flexibly switched.

[0038] The paving machine synchronous movement mechanism 4 is connected with the mobile platform 12, so that the mobile platform 12 moves along with the position of the paving machine, the paving machine synchronous movement mechanism 4 includes a traction arm 41, one end of the traction arm 41 is connected with the mobile platform 12, and the other end is used for fixing on the paving machine, and specifically, the mobile platform 12 is connected with the paving machine through the traction arm 41, so that the mobile platform 12 can be driven to move left and right in the fixed guide rail 11 when the paving machine moves, and then the outlet end of the telescopic air pipe 2 can be driven to move left and right in the tunnel, wherein the traction arm 41 can also be replaced by a connecting rod device or other mechanical structure with similar effect (connecting the mobile platform 12 and the paving machine).

[0039] The detailed working process of the embodiment is as follows:

[0040] The mobile carrier 12 is connected with the paver through the traction arm 41, when the paver moves, the mobile carrier 12 can be driven to move left and right in the fixed guide rail 11 through the traction arm 41, so that the outlet end of the telescopic air pipe 2 can be driven to move left and right in the tunnel, realizing the automatic adjustment of the outlet end position of the telescopic air pipe 2, when the outlet end position of the telescopic air pipe 2 is automatically adjusted, the position of the fan 3 in the outlet end of the telescopic air pipe 2 will also change, realizing the synchronous movement of the fan 3 in the outlet end of the telescopic air pipe 2 and the paver, so that the working area behind the paver can be ventilated in real time, and the asphalt smoke or dust released in the paver working process can be discharged to the outside of the tunnel in time, avoiding the spread of asphalt smoke or dust to the breathing zone of construction personnel, and the harm to the health of construction personnel, in the whole ventilation process, the mobile carrier 12 is directly connected with the paver through mechanical structure (such as traction arm 41 or connecting rod device, etc.), so that data conversion is not needed, the ventilation system can be started immediately, at the same time, the structure is simple, the environmental interference (such as high temperature, dust environment, etc.) is small, and the stability is strong.

[0041] Example two

[0042] As Figures 2 to 5As shown, according to another embodiment of the utility model, the slide rail 1 is a transmission type slide rail 1, the paver synchronous movement mechanism 4 includes a power drive mechanism 42, a control system 43 and a paver position sensing module 44; the paver position sensing module 44 is installed on the telescopic air pipe 2 or the mobile carrier 12 (the drawing only shows the case that the paver position sensing module 44 is installed on the telescopic air pipe 2), is used to obtain paver position information, and is transmitted to the control system 43, the control system 43 transmits control signal to the power drive mechanism 42, to trigger the action of controlling the power drive mechanism 42, the power drive mechanism 42 moves the mobile carrier 12 by carrier transmission structure 5, the paver position sensing module 44 includes laser position sensor, the power drive mechanism 42 includes motor, still includes electric control switch 6, the fan 3 is connected with fan power through the switch action end of electric control switch 6, the control end of electric control switch 6 is connected with the output end of control system 43, the carrier transmission structure 5 includes one of screw rod, rack, belt (the drawing only shows the case that screw rod is connected with motor), specifically, the paver position information is obtained by the paver position sensing module 44, and is transmitted to the control system 43, so that the control system 43 will generate corresponding control signal according to the received paver position information, and the generated control signal is transmitted to the power drive mechanism 42, to trigger the action of controlling the power drive mechanism 42, after the action of power drive mechanism 42, the power drive mechanism 42 will drive the carrier transmission structure 5 to move, drives the mobile carrier 12 to move left and right in the fixed guide rail 11, to the outlet end of telescopic air pipe 2 can be driven to move left and right in the tunnel, the electric control switch 6 is a relay, the opening or closing of fan 3 power is controlled by the electric control switch 6, to control the working state of fan 3, in turn, the ventilation effect of fan 3 can be controlled, since the relay belongs to prior art, here will not be repeated.

[0043] When the carrier transmission structure 5 is a lead screw, the lead screw is connected with the output end of the power driving mechanism 42, the moving carrier 12 is arranged outside the lead screw, the moving carrier 12 has an internal thread, the lead screw has an external thread, the internal thread of the moving carrier 12 is matched with the external thread of the lead screw, the rotating motion of the power driving mechanism 42 (such as a motor) is converted into the linear motion of the moving carrier 12 in the fixed guide rail 11 through the lead screw; when the carrier transmission structure 5 is a rack, the rack is arranged on the moving carrier 12 and located in the fixed guide rail 11, the output end of the power driving mechanism 42 is connected with a gear, the gear is meshed with the rack, the rotating motion of the power driving mechanism 42 (such as a motor) is converted into the linear motion of the rack in the fixed guide rail 11 through the meshing of the gear and the rack, and finally converted into the linear motion of the moving carrier 12 in the fixed guide rail 11; when the carrier transmission structure 5 is a belt, the belt is arranged outside the output shaft of the power driving mechanism 42, the moving carrier 12 is arranged below the belt, when the power driving mechanism 42 is started, the rotating motion of the output shaft of the power driving mechanism 42 (such as a motor) will drive the belt to move, and finally drive the moving carrier below the belt to perform linear motion in the fixed guide rail 11, in addition, the carrier transmission structure 5 can also be other structures (which have similar effects of converting the rotating motion of the power driving mechanism 42 into the linear motion of the moving carrier 12 in the fixed guide rail 11) other than the lead screw, the rack and the belt.

[0044] The detailed working process of the embodiment is as follows:

[0045] When the tunnel paving operation is performed by the paver, the paver position information is acquired by the paver position sensing module 44 and transmitted to the control system 43, so that the control system 43 generates corresponding control signals according to the received paver position information, and transmits the generated control signals to the power driving mechanism 42 to trigger the action of the power driving mechanism 42. After the action of the power driving mechanism 42, the power driving mechanism 42 drives the movement of the carrier transmission structure 5, drives the movement of the mobile carrier 12 in the fixed guide rail 11, drives the movement of the outlet end of the telescopic air pipe 2 in the tunnel, and realizes the automatic adjustment of the position of the outlet end of the telescopic air pipe 2. When the position of the outlet end of the telescopic air pipe 2 is automatically adjusted, the position of the fan 3 at the outlet end position in the telescopic air pipe 2 will also change, realizing the synchronous movement of the fan 3 at the outlet end position in the telescopic air pipe 2 and the paver, so as to realize the real-time ventilation for the working area behind the paver, and timely discharge the asphalt smoke or dust released in the paver operation process to the outside of the tunnel, avoiding the spread of asphalt smoke or dust to the breathing zone of construction personnel, and the harm to the health of construction personnel. In the whole ventilation process, the real-time data is collected by the paver position sensing module 44, and the dynamic adjustment of the ventilation system is realized by combining the control algorithm and the software platform, so as to realize the remote monitoring and intervention by the intelligent platform to cope with the sudden working conditions. At the same time, the ventilation system is triggered accurately based on the real-time paver position data, reducing the waste of resources.

[0046] Embodiment three

[0047] As Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, according to another embodiment of the utility model, the telescopic air pipe 2 is PVC telescopic air pipe 2, aluminum foil ventilation hose or multi-section nested rigid air pipe 21 (the drawing only shows the nested condition of multiple rigid air pipes 21), specifically, when the telescopic air pipe 2 is multi-section nested rigid air pipe 21, the telescopic air pipe 2 should include at least two rigid air pipes 21, and one of the rigid air pipes 21 is slidingly arranged in another rigid air pipe 21, using PVC telescopic air pipe 2, aluminum foil ventilation hose or rigid air pipe 21 can be used as telescopic air pipe to realize the movement of the ventilation position in the tunnel, but when using multiple rigid air pipes 21 nested as telescopic air pipe, since the rigid air pipe 21 can rely on the strength of the pipe body to bear external load (such as wind pressure, mechanical vibration, etc.), it can effectively resist deformation when the fan 3 is running, so as to avoid the decline of ventilation efficiency caused by the collapse or distortion of the air pipe, at the same time, the deformation of the rigid air pipe 21 is very small when it is stressed, which can ensure the continuity of the ventilation path and avoid airflow turbulence or sudden increase of local resistance caused by pipe deformation, thereby increasing the service life of the telescopic air pipe 2, therefore, when the telescopic air pipe 2 is used, it is preferred to use rigid air pipe 21, and a limiting ring 22 is arranged outside the inlet end and outlet end of the rigid air pipe 21 slidingly arranged in another rigid air pipe 21 to limit the limit position of the rigid air pipe 21 sliding in another rigid air pipe 21.

[0048] Embodiment four

[0049] As Figure 6 As shown, according to another embodiment of the utility model, the inlet end and outlet end of the telescopic air pipe 2 are both provided with filter plates 7 for filtering dust inside and outside the tunnel to avoid dust inside and outside the tunnel entering the telescopic air pipe 2, specifically, the filter plate 7 has a plurality of filter holes, and the gas or dust in the air can pass through the filter holes of the filter plate 7, while the dust (the particle size of dust is larger than that of dust) inside and outside the tunnel cannot pass through the filter holes of the filter plate 7, so that the dust inside and outside the tunnel is left outside the filter plate 7 to avoid the dust inside and outside the tunnel entering the telescopic air pipe 2 or adhering to the telescopic air pipe 2 or the fan 3, which can affect the ventilation effect, the filter plate 7 is detachably arranged at the inlet end or outlet end of the telescopic air pipe 2, when the dust filtered out of the filter plate 7 is accumulated on the filter plate 7 and blocks the filter holes of the filter plate 7, the filter plate 7 can be detached, a new filter plate 7 is replaced, or the blocked filter holes of the filter plate 7 are dredged.

[0050] The detailed working process of the embodiment is as follows:

[0051] After the fan 3 is started, the suction force generated when the fan 3 is started can pass the air outside the tunnel into the working area inside the tunnel, or discharge the harmful gas and dust in the working area inside the tunnel to the outside of the tunnel, at this time, the dust inside or outside the tunnel will be sucked to the filter plate 7 at the inlet end or outlet end of the telescopic air pipe 2 along with the air, harmful gas or dust, because the gas or dust in the air can pass through the filter holes of the filter plate 7, while the dust inside or outside the tunnel cannot pass through the filter holes of the filter plate 7, so that the dust inside or outside the tunnel will be left outside the filter plate 7, so as to avoid the dust inside or outside the tunnel from entering the telescopic air pipe 2 and adhering to the telescopic air pipe 2 or the fan 3, which will affect the ventilation effect.

[0052] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A ventilation system for tunnel pavement paving operations, characterized in that, The utility model relates to a synchronous moving mechanism of a tunneling machine, which comprises a sliding rail, a telescopic air pipe, a fan and a synchronous moving mechanism of a paving machine, wherein: The sliding rail comprises a fixed guide rail, a moving platform is arranged in the fixed guide rail, and the fixed guide rail is used for fixing on an external base; The telescopic air pipe is fixed at least at the outlet end of the moving platform; The fan is arranged in the outlet end of the telescopic air pipe; The synchronous moving mechanism of the paving machine is connected with the moving platform, so that the moving platform moves along with the position of the paving machine. The synchronous moving mechanism of the paving machine comprises a traction arm, one end of the traction arm is connected with the moving platform, and the other end is used for fixing on the paving machine.

2. A ventilation system for tunnel pavement paving operations as claimed in claim 1, characterized in that: The sliding rail is a transmission sliding rail.

3. A ventilation system for tunnel pavement paving operations as claimed in claim 1, characterized in that: The synchronous moving mechanism of the paving machine comprises a power driving mechanism, a control system and a paving machine position sensing module; the paving machine position sensing module is installed on the telescopic air pipe or the moving platform, is used for acquiring the position information of the paving machine and is transmitted to the control system, the control system transmits a control signal to the power driving mechanism, so as to trigger the action of the power driving mechanism, and the power driving mechanism drives the moving platform to move through a platform transmission structure.

4. A ventilation system for tunnel pavement paving operations according to claim 3, characterized in that: The paving machine position sensing module comprises a laser position sensor.

5. A ventilation system for tunnel pavement paving operations according to claim 4, characterized in that: The power driving mechanism comprises a motor.

6. A ventilation system for tunnel pavement paving operations as claimed in claim 4, characterized in that: An electric control switch is further arranged, the fan is connected with a fan power supply through the switch action end of the electric control switch, and the control end of the electric control switch is connected with the output end of the control system.

7. A ventilation system for tunnel pavement paving operations as claimed in claim 4, characterized in that: The platform transmission structure comprises one of a screw rod, a rack and a belt.

8. A ventilation system for tunnel pavement paving operations as claimed in claim 4, characterized in that: The telescopic air pipe is a PVC telescopic air pipe, an aluminum foil ventilation hose or a rigid air pipe with multiple sections.

9. A ventilation system for tunnel pavement paving operations according to any one of claims 1-8, characterized in that: The inlet end and the outlet end of the telescopic air pipe are both provided with filter plates, which are used for filtering the dust inside and outside the tunnel, so as to avoid the dust inside and outside the tunnel from entering the telescopic air pipe.

10. A ventilation system for tunnel pavement paving operations according to claim 9, characterized in that: ​

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