CN109209437B - A maintenance platform truck sprays for tunnel secondary lining - Google Patents

A maintenance platform truck sprays for tunnel secondary lining Download PDF

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Publication number
CN109209437B
CN109209437B CN201811172758.8A CN201811172758A CN109209437B CN 109209437 B CN109209437 B CN 109209437B CN 201811172758 A CN201811172758 A CN 201811172758A CN 109209437 B CN109209437 B CN 109209437B
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China
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water
spraying
pipe
disc
air bag
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CN109209437A (en
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董永
李国云
段磊
任行
郗闯文
郭恒
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China Construction First Group Corp Ltd
China Construction Municipal Engineering Corp Ltd
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China Construction First Group Corp Ltd
China Construction Municipal Engineering Corp Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention belongs to a spraying maintenance trolley for secondary lining of a tunnel, which consists of a trolley body, wheels, a cab, a spraying head, water pump equipment, inflation equipment and a water tank. The vehicle body is used for bearing and moving the water pump equipment, the inflating equipment, the water tank and the air bag telescopic water spraying belt. The air bag telescopic water spraying belt is used for forming a telescopic water spraying support frame and collecting spraying water in the water collecting filter disc. The water collecting and filtering disc is used for collecting and filtering the spray water to be recycled in the water tank. The water pump equipment is used for pressing spray water into the spray pipe. The air inflation equipment is used for pressing air into the left and right air inflation supporting pipes. The invention is provided with the air bag telescopic water spray belt structure, and has the advantages of reasonable design, shrinking spray system, simple structure, short time for occupying space in the tunnel during maintenance period, time saving, labor saving, water saving and good use effect.

Description

A maintenance platform truck sprays for tunnel secondary lining
Technical Field
The invention belongs to a spraying maintenance trolley for secondary lining of a tunnel.
Background
At present, in tunnel engineering construction, secondary lining is an important component of tunnel engineering, and the service life of a tunnel depends on the quality of the secondary lining to a great extent. Because the space of the tunnel is generally smaller, the space without outdoor engineering is wide, and meanwhile, because the tunnel construction process is complex, a plurality of supporting and auxiliary devices are provided, the environment for secondary lining maintenance work cannot be compared with outdoor concrete maintenance, and the maintenance of the secondary lining is always a problem that a plurality of tunnels are difficult to solve in the construction process. For a long time, the secondary lining concrete curing mostly depends on a manual spraying curing method. The manual spraying method has the defects of needing to frequently take and dismantle scaffolds, small maintenance range, labor waste, long time for occupying space in the tunnel during maintenance, influence on the construction of other personnel and equipment in the tunnel, large water consumption and poor maintenance quality.
In order to overcome the defects of the traditional manual spraying maintenance method, Chinese patent CN207538838U discloses a full-automatic tunnel secondary lining maintenance trolley, which comprises a truss system, a spraying system, a walking system, an induction system and a control box. The truss system is a supporting framework of the trolley, comprises a cross beam and supporting legs, and is formed by welding or assembling profile steel, and the spraying pipelines of the spraying system are positioned at the upper end and two sides of the supporting framework. Although this patent has overcome the manual work and has sprayed the maintenance scope of fostering and little, need not often to take the dismantlement scaffold frame and take the trouble hard not enough, but its all structures are fixed knot structure, still occupy limited tunnel space for a long time in the maintenance period, influence the construction of other personnel and equipment in the tunnel, and do not have water-saving device.
Disclosure of Invention
The invention aims to provide a spraying maintenance trolley for secondary lining of a tunnel, which is provided with an air bag telescopic water spray belt structure and has the advantages of reasonable design, shrinking spraying system, simple structure, short time for occupying space in the tunnel during maintenance period, time saving, labor saving, water saving and good use effect.
Therefore, the spraying maintenance trolley for the secondary lining of the tunnel comprises a trolley body, wheels, a cab, a spraying head, water pump equipment, inflation equipment and a water tank, wherein:
a vehicle body: the water tank is used for bearing and moving the water pump equipment, the inflating equipment, the water tank and the air bag telescopic water spraying belt. The rear part of the upper end of the vehicle body is provided with a support frame, and the wheel disc is positioned between the two support frames. The middle part of the wheel disc is provided with a wheel shaft, and the two ends of the wheel shaft are arranged on the supporting frames through bearing auxiliary shafts positioned on the two supporting frames. The wheel shaft end at the rear end of the vehicle body penetrates through the bearing pair on the corresponding support frame to be fixed with the driven chain wheel, the vehicle body at the lower end of the driven chain wheel is provided with a motor, and the motor drives the driven chain wheel through the driving chain wheel and the chain to enable the wheel shaft and the wheel disc to rotate on the support frame. The rear end of the air bag telescopic water spraying belt is fixed on a wheel shaft in the middle of the wheel disc. The car body at the lower end of the wheel disc is provided with a water collecting filter disc. The front part of the upper end of the vehicle body is provided with a water pump device and an inflation device, and the lower end of the vehicle body is provided with a water tank.
An air bag telescopic water spraying belt: used for forming a telescopic water spraying support frame and collecting spraying water in the water collecting filter disc. Two sides of the air bag telescopic water spray belt are a left inflation supporting pipe and a right inflation supporting pipe. The lower parts of the left and right inflatable supporting tubes are in a straight column shape, and the upper parts of the left and right inflatable supporting tubes are in an arc shape. The left and right inflation supporting tubes are communicated at the front and rear ends of the air bag telescopic water spray belt. A connecting band with a certain width is arranged between the left and the right inflatable supporting tubes. The middle part of the outer side of the connecting belt is provided with a spray pipe, and the middle part of the outer side of the spray pipe is provided with a plurality of spray heads communicated with the spray pipe at intervals. The rear end of the air bag telescopic water spraying belt is fixed on a wheel shaft in the middle of the wheel disc. One end of the gas injection pipe and one end of the water injection pipe are respectively arranged at the outer end of the outer side wall of the front end wheel disc, and the other ends of the gas injection pipe and the water injection pipe are respectively communicated with the left and the right inflatable supporting pipes and the spray pipe. The front end of the air bag telescopic water spraying belt is provided with an migrating head part, and the middle part of the migrating head part is provided with a through hole. The corresponding inner side wall of the water collecting bucket is provided with a hook ear, the water collecting bucket is arranged at the lower end of the movable head part through a clamping hook and a steel wire rope, the lower end of the water collecting bucket is provided with a water outlet, one end of the water guide pipe is connected with the water outlet of the water collecting bucket, and the other end of the water guide pipe is positioned in the water collecting filter disc.
Water collection and filtration disc: used for collecting and filtering the spray water to be recycled in the water tank. The upper end edge of the water collecting and filtering disc is a disc-shaped body with an upper convex edge. The lower end surface of the water collecting filter disc is a filter screen and is communicated with the inner upper end of the water tank. The upper end of the filter screen of the water collecting filter disc is provided with a filter sand layer, and the upper end of the filter sand layer is a filter fiber layer.
Water pump equipment: the spraying water pump is used for pressing spraying water into the spraying pipe, a water pumping port of the water pump equipment is communicated with the inner lower part of the water tank, and a water pressing port of the water pump equipment is communicated with the water injection pipe through a water outlet valve, a water pressing conduit and a quick water connection valve head;
an inflation device: used for pressing air into the left and right inflatable supporting tubes. The inflation inlet of the inflation equipment is communicated with the gas injection pipe through a gas outlet valve, a gas compression conduit and a quick connection valve head.
An electric heating pipe is arranged at the lower part in the water tank. The outer side of the connecting belt with the spray pipe and the left and right inflatable supporting pipes form a water collecting groove surface. The left and right inflatable supporting tubes are formed by wrapping nylon cloth outside a rubber inner tube. After the quick water receiving valve head and the quick air receiving valve head are simultaneously separated from the left and right inflatable supporting tubes and the spraying tube, the air bag telescopic water spraying belt can be wound on the wheel disc. The thickness of the filtering sand layer is 5-7 cm, and the grain size of the sand is 0.8-1.5 mm. The filter fiber layer is 3-6 layers of non-woven fabric, and the thickness of the non-woven fabric is 0.3-0.6 mm. The connecting band is made of waterproof nylon cloth. The rear end of the air bag telescopic water spraying belt is supported and fixed by the middle part of the wheel disc. The two ends of the wheel shaft are arranged on the support frames through the bearing auxiliary shafts on the two support frames, and the wheel shaft end at the rear end of the vehicle body penetrates through the bearing auxiliary shafts on the corresponding support frames to be fixed with one end of the crank.
The above structure achieves the object of the present invention.
The invention is provided with the air bag telescopic water spray belt structure, and has the advantages of reasonable design, shrinking spray system, simple structure, short time for occupying space in the tunnel during maintenance period, time saving, labor saving, water saving and good use effect.
Compared with the prior art, the invention has the following advantages and positive effects:
(1) the vehicle-mounted airbag telescopic water spraying belt structure is adopted, when the tunnel secondary lining needs to be sprayed and maintained, the vehicle body can be driven into the tunnel, the inflatable airbag telescopic water spraying belt can be inflated and unfolded to spray and maintain the tunnel secondary lining, the airbag telescopic water spraying belt can be folded on a wheel disc of the vehicle body after the spraying and maintenance, the vehicle body can be driven out of the tunnel, the construction of other personnel and equipment in the tunnel cannot be influenced, and the vehicle-mounted airbag telescopic water spraying belt structure can be driven into the tunnel at any time to carry out the spraying and maintenance or dust reduction operation according to the requirement.
(2) The water collecting and filtering structure is arranged, and the vehicle-mounted air bag telescopic water spraying belt is matched to effectively collect the return water in the spraying and curing process, and the return water flows back to the water tank after being filtered and recycled, so that the water consumption in construction is greatly reduced, and the construction cost is greatly reduced.
(3) The invention reduces the personnel required for maintenance, improves the working efficiency, and has the advantages of low manufacturing cost, strong applicability, stability, reliability and easy maintenance.
Drawings
FIG. 1 is a schematic structural view before spray curing of the present invention.
FIG. 2 is a schematic view of the structure of the present invention in performing shower curing.
Fig. 3 is a schematic structural view of the section a-a of fig. 2.
FIG. 4 is a front structural schematic view of the vehicle airbag telescopic water spray belt of the present invention.
Detailed Description
Example 1: as shown in fig. 1 to 4, a spray maintenance trolley for secondary lining of a tunnel is composed of a trolley body 16, wheels 15, a cab 7, a spray header 81, a water pump device 6, an inflation device 5 and a water tank 14. Wherein:
a vehicle body: the water tank is used for bearing and moving the water pump equipment, the inflating equipment, the water tank and the air bag telescopic water spraying belt. The device for heating the spray water in the small-sized truck and the battery truck comprises a truck body, wheels, a cab, a driving system, a power supply system, an oil tank, an operating system and the like, which can be used by the conventional small-sized truck and the conventional battery truck, wherein a control button for controlling the operation of water pump equipment, inflation equipment and a motor and a controller for controlling the opening and closing of an electric heating pipe 35 in a water tank to heat the spray water in the water tank according to the fact that an infrared temperature detector 28 reads the temperature of the secondary lining maintenance cement surface are additionally arranged in the cab.
The invention is provided with a support frame 4 at the rear part of the upper end of the vehicle body. The wheel disc 3 is positioned between the two support frames. The middle part of the wheel disc is provided with a wheel shaft 2, and the middle part of the wheel disc and the middle part of the wheel shaft are fixed into a whole. The two ends of the wheel shaft are arranged on the support frames through the bearing pairs 24 positioned on the two support frames. The wheel shaft end at the rear end of the vehicle body penetrates through the bearing pair on the corresponding support frame to be fixed with the driven chain wheel 1, the vehicle body at the lower end of the driven chain wheel is provided with a motor 10, and the motor drives the driven chain wheel through a driving chain wheel 9 and a chain 12 to enable the wheel shaft and the wheel disc to rotate on the support frame. The rear end of the air bag telescopic water spraying belt is fixed on a wheel shaft in the middle of the wheel disc. The car body at the lower end of the wheel disc is provided with a water collecting filter disc 11. Water pump equipment and inflation equipment are established to automobile body upper end front portion, and the water tank is established to the automobile body lower extreme, and water filling port 13 is established to the outside upper end of water tank to make things convenient for the moisturizing in the water tank. An electric heating pipe 35 is arranged at the lower part in the water tank.
The upper end of the water pump equipment or the air charging equipment is provided with an infrared temperature detector 28, the infrared temperature detector can read the temperature of the secondary lining maintenance cement surface and transmit data to the controller through a wire, the controller automatically controls the opening and closing of the electric heating pipe in the water tank according to a set numerical value to heat spray water in the water tank, and when the temperature of the water in the water tank is lower than the temperature of the concrete surface by more than 15 ℃, the electric heating pipe can heat the water. The electric heating pipe can be a U-shaped electric heating pipe.
The air bag telescopic water spraying belt 8: used for forming a telescopic water spraying support frame and collecting spraying water in the water collecting filter disc. The two sides of the air bag telescopic water spray belt are a left inflation support pipe 84 and a right inflation support pipe 85. The lower parts of the left and right inflatable supporting tubes are in a straight column shape, and the upper parts of the left and right inflatable supporting tubes are in an arc shape, namely, the upper parts are adapted to the cross section shape of the tunnel. The left and right inflation supporting tubes are communicated at the front and rear ends of the air bag telescopic water spray belt. The left and right inflatable supporting tubes are formed by wrapping nylon cloth outside a rubber inner tube. A connecting belt 83 with a certain width is arranged between the left and the right inflatable supporting tubes. The connecting band is made of waterproof nylon cloth. The width of the telescopic air bag water spraying belt is 1-1.8 m, so that the telescopic air bag water spraying belt can be used as an umbrella to prevent spraying maintenance water or atomized water from splashing to affect the construction of other constructors during spraying maintenance. The outer side of the connecting belt with the spray pipe and the left and right inflatable supporting pipes form a water collecting groove surface. In the spraying maintenance process, if the spraying maintenance water or atomized water splashes on the water collecting groove surface, the water can flow back to the water collecting filter disc along the water collecting groove surface or flow back to the water collecting filter disc through the water collecting hopper and the water guide pipe, and the water is filtered and recycled.
The middle part of the outer side of the connecting belt is provided with a spray pipe 82, and the middle part of the outer side of the spray pipe is provided with a plurality of spray heads 81 communicated with the spray pipe at intervals. The rear end of the air bag telescopic water spraying belt is fixed on a wheel shaft in the middle of the wheel disc. Namely, the rear end of the air bag telescopic water spraying belt is supported and fixed by the middle part of the wheel disc. One ends of the gas injection pipe 34 and the water injection pipe 25 are respectively arranged at the outer end of the outer side wall of the front end wheel disc, and the other ends of the gas injection pipe are respectively communicated with the left inflation support pipe and the right inflation support pipe; the other end of the water injection pipe is communicated with the spray pipe. The front end of the air bag telescopic water spray belt is provided with an migrating part 86, and the middle part of the migrating part is provided with a through hole 87. The corresponding inner side wall of the water collecting bucket 18 is provided with a hook lug 19, and a steel wire rope 20 with hooks at two ends passes through the through hole to be hooked on the two hook lugs of the corresponding part so as to arrange the water collecting bucket at the lower end of the moving head part. The lower end of the water collecting hopper is provided with a water outlet 21, one end of the water guide pipe 17 is connected with the water outlet of the water collecting hopper, and the other end of the water guide pipe is positioned in the water collecting filter disc. The water guide pipe plays a role in water guide and also has the function of limiting the front end of the air bag telescopic water spraying belt.
Water collecting filter disc 11: used for collecting and filtering the spray water to be recycled in the water tank. The upper end edge of the water collecting and filtering disc is a disc-shaped body with an upper convex edge. The lower end surface of the water collecting filter disc is provided with a filter screen 33, and the lower end of the filter screen is communicated with the inner upper end of the water tank. The upper end of the filter screen is provided with a filter sand layer 23, the thickness of the filter sand layer is 5-7 cm, and the particle size of the sand is 0.8-1.5 mm. The upper end of the filtering sand layer is a filtering fiber layer 22, the filtering fiber layer is a non-woven fabric with 3-6 layers, and the thickness of the non-woven fabric is 0.3-0.6 mm. The fineness of the filter screen is smaller than the grain diameter of the sand.
Water pump equipment: the water pumping port 32 of the water pump equipment is communicated with the lower part in the water tank, and the water pressing port of the water pump equipment is communicated with the water injection pipe through a water outlet valve 31, a water pressing conduit 30 and a quick water receiving valve head 29.
An inflation device: used for pressing air into the left and right inflatable supporting tubes. The inflation inlet of the inflation device is communicated with an air injection pipe 34 through an air outlet valve 27, an air injection pipe and a quick connection air valve head 26.
After the quick water receiving valve head and the quick air receiving valve head are simultaneously separated from the left and right inflatable supporting tubes and the spraying tube, the air bag telescopic water spraying belt can be wound on the wheel disc.
When the spraying maintenance is needed, the invention is driven into the secondary lining spraying maintenance section in the tunnel, and the vehicle body can be firstly positioned at one side edge in the tunnel. And starting a motor, wherein the motor drives a driven sprocket through a driving sprocket and a chain to enable a wheel shaft and a wheel disc to rotate on the support frame to extend the air bag telescopic water spraying belt outwards from the wheel disc to be completely unfolded, and the rear end of the air bag telescopic water spraying belt is fixed on the wheel shaft in the middle of the wheel disc. The quick-connection gas valve head is communicated and fixed with the gas injection pipe, and the quick-connection gas valve head is communicated and fixed with the gas injection pipe. The water collecting hopper is fixed at the lower end of the movable head part. And starting the air inflation equipment (air pump) to inflate the left and right air inflation supporting tubes. The left and right inflation supporting tubes expand and extend to generate supporting force to form the air bag type supporting frame. At the moment, the outer side surface of the bag telescopic type water spraying belt is positioned near one side and the upper end surface of the secondary lining in the tunnel. The controller is started, the infrared temperature detector can read the temperature of the secondary lining maintenance cement surface and transmits data to the controller through a wire, the controller automatically controls the opening and closing of the electric heating pipe in the water tank to heat the spray water in the water tank by means of a set numerical value, and when the water temperature in the water tank is lower than the surface temperature of concrete by more than 15 degrees, the electric heating pipe can heat the water. And starting water pump equipment, pumping proper spraying maintenance water in the water tank into the spraying pipe, and spraying the maintenance water to the secondary lining cement surface (the sprayed water can be atomized water) through a plurality of spraying heads for maintenance. In the spraying maintenance process, if the spraying maintenance water or the atomized water splashes on the water collecting groove surface, the water can flow back to the water collecting filter disc along the water collecting groove surface or flow back to the water collecting filter disc through the water collecting hopper and the water guide pipe, and then flows back to the water cell for recycling after being filtered by the filter fiber layer and the filter sand layer in sequence. The car body slowly moves forwards or backwards, one side and the upper end of the secondary lining spraying maintenance section are maintained, and then the car head is turned to finish the other side and the upper end of the secondary lining spraying maintenance section.
After the spraying maintenance of the secondary lining spraying maintenance section is completed, the water pump equipment, the inflation equipment and the controller can be closed, the water valve head and the air valve head are connected with the left and right inflation supporting pipes and the spraying pipe at a high speed, and after the water and the air in the left and right inflation supporting pipes and the spraying pipe are respectively discharged from the air injection pipe and the water injection pipe, the air bag telescopic water spray belt discharges air and the air shrinks and falls down. And (5) detaching the water collecting hopper and the water guide pipe. And the motor is started to roll the air bag telescopic water spray belt on the wheel disc again, and then the air bag telescopic water spray belt is driven out of the tunnel. The construction of other personnel and equipment in the tunnel can not be influenced, and the tunnel can be driven into at any time according to the requirements for spray maintenance or dust fall operation. The power supply of each device of the invention can be provided by a storage battery, a vehicle-mounted generator or an external power supply system in a tunnel.
Example 2: unlike embodiment 1, the motor, the drive sprocket, the chain, and the driven sprocket may not be provided. The two ends of the wheel shaft are arranged on the support frames through the bearing auxiliary shafts on the two support frames, and the wheel shaft end at the rear end of the vehicle body penetrates through the bearing auxiliary shafts on the corresponding support frames to be fixed with one end of the crank. The wheel shaft and the wheel disc can be driven to rotate forward and backward by rotating the crank, and the folding and unfolding functions of the air bag telescopic type water spraying belt are completed. The rest are the same, so the description is not repeated.
In a word, the invention is provided with the air bag telescopic water spray belt structure, and has the advantages of reasonable design, shrinking spray system, simple structure, short space occupying time in the tunnel during the maintenance period, time saving, labor saving, water saving and good use effect.

Claims (10)

1. The utility model provides a spray maintenance platform truck for tunnel secondary lining, comprises automobile body, wheel, driver's cabin, shower head, water pump equipment, inflation equipment and water tank, its characterized in that:
a vehicle body: the water pump equipment and the inflating equipment are arranged at the front part of the upper end of the vehicle body, the water tank and the air bag telescopic water spraying belt are arranged at the lower end of the vehicle body, the wheel disc is positioned between the two support frames, the middle part of the wheel disc is provided with a wheel shaft, the two ends of the wheel shaft are arranged on the support frames through bearing auxiliary shafts positioned on the two support frames, the end of the wheel shaft positioned at the rear end of the vehicle body penetrates through the bearing auxiliary shaft on the corresponding support frame and is fixed with a driven sprocket, the vehicle body at the lower end of the driven sprocket is provided with a motor, the motor drives the driven sprocket through a driving sprocket and a chain to enable the wheel shaft and the wheel disc to rotate on the support frames, the rear end of the air bag telescopic water spraying belt is fixed on the wheel shaft in the middle part of the wheel disc, a water collecting filter disc is arranged on the vehicle body at the lower end of the wheel disc, the water pump equipment and the inflating equipment are arranged at the front part of the upper end of the vehicle body;
an air bag telescopic water spraying belt: the water collecting and filtering device is used for forming a telescopic water spraying support frame and collecting spraying water in a water collecting and filtering disc, two side edges of an air bag telescopic water spraying belt are a left inflating support pipe and a right inflating support pipe, the lower parts of the left inflating support pipe and the right inflating support pipe are straight cylindrical, the upper parts of the left inflating support pipe and the right inflating support pipe are arc-shaped, the left inflating support pipe and the right inflating support pipe are communicated with each other at the front end and the rear end of the air bag telescopic water spraying belt, a connecting belt with a certain width is arranged between the left inflating support pipe and the right inflating support pipe, a spraying pipe is arranged in the middle part of the outer side of the connecting belt, a plurality of spraying heads communicated with the spraying pipes are arranged in the middle part of the spraying pipe at intervals, the rear end of the air bag telescopic water spraying belt is fixed on a wheel shaft in the middle part of the wheel disc, one end of a gas injection pipe and one end of a water injection pipe are respectively arranged at the outer end of the outer side wall of the front wheel disc, the other end of the gas injection pipe and the left inflating support pipe and the spraying pipe are respectively communicated with the spraying pipe, a moving head is provided with a through hole, the corresponding inner side wall of the water collecting bucket is provided with a hook ear, the water collecting bucket is arranged at the lower end of the movable head part through a clamping hook and a steel wire rope, the lower end of the water collecting bucket is provided with a water outlet, one end of the water guide pipe is connected with the water outlet of the water collecting bucket, and the other end of the water guide pipe is positioned in the water collecting filter disc;
water collection and filtration disc: the upper end edge of the water collecting and filtering disc is a disc body with an upper convex edge, the lower end surface of the water collecting and filtering disc is a filter screen and is communicated with the inner upper end of the water tank, the upper end of the filter screen of the water collecting and filtering disc is provided with a filter sand layer, and the upper end of the filter sand layer is a filter fiber layer;
water pump equipment: the spraying water pump is used for pressing spraying water into the spraying pipe, a water pumping port of the water pump equipment is communicated with the inner lower part of the water tank, and a water pressing port of the water pump equipment is communicated with the water injection pipe through a water outlet valve, a water pressing conduit and a quick water connection valve head;
an inflation device: the air inlet of the air charging device is communicated with the air injection pipe through an air outlet valve, an air charging pipe and a quick connection air valve head.
2. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: an electric heating pipe is arranged at the lower part in the water tank.
3. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: the outer side of the connecting belt with the spray pipe forms a water collecting groove surface with the left and right inflatable supporting pipes.
4. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: the left and right inflatable supporting tubes are formed by wrapping nylon cloth outside a rubber inner tube.
5. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: after the quick water receiving valve head and the quick air receiving valve head are simultaneously separated from the left and right inflatable supporting tubes and the spraying tube, the air bag telescopic water spraying belt can be wound on the wheel disc.
6. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: the thickness of the filtering sand layer is 5-7 cm, and the grain size of the sand is 0.8-1.5 mm.
7. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: the filter fiber layer is 3-6 layers of non-woven fabric, and the thickness of the non-woven fabric is 0.3-0.6 mm.
8. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: the connecting band is made of waterproof nylon cloth.
9. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: the rear end of the air bag telescopic water spraying belt is supported and fixed by the middle part of the wheel disc.
10. The spray maintenance trolley for the secondary lining of a tunnel according to claim 1, wherein: the two ends of the wheel shaft are arranged on the support frames through the bearing auxiliary shafts on the two support frames, and the wheel shaft end at the rear end of the vehicle body penetrates through the bearing auxiliary shafts on the corresponding support frames to be fixed with one end of the crank.
CN201811172758.8A 2018-10-09 2018-10-09 A maintenance platform truck sprays for tunnel secondary lining Active CN109209437B (en)

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CN107435546B (en) * 2017-08-23 2023-07-25 中国铁路经济规划研究院有限公司 Tunnel lining intelligent maintenance trolley
CN207177927U (en) * 2017-09-30 2018-04-03 中铁十二局集团有限公司 A kind of tunnel secondary lining concrete curing device
CN107602150A (en) * 2017-09-30 2018-01-19 龚岗 Tunnel concrete maintenance trolley
CN107654240A (en) * 2017-10-24 2018-02-02 中铁隧道集团二处有限公司 A kind of novel atomizing maintenance trolley
CN207538838U (en) * 2017-11-17 2018-06-26 中交二公局第三工程有限公司 A kind of full-automatic tunnel double-lining maintenance trolley

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