CN217028932U - Two lining crown arch concrete in tunnel vertically pour into platform truck system in succession - Google Patents
Two lining crown arch concrete in tunnel vertically pour into platform truck system in succession Download PDFInfo
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- CN217028932U CN217028932U CN202220006793.8U CN202220006793U CN217028932U CN 217028932 U CN217028932 U CN 217028932U CN 202220006793 U CN202220006793 U CN 202220006793U CN 217028932 U CN217028932 U CN 217028932U
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Abstract
The utility model provides a tunnel secondary lining arch concrete longitudinal continuous pouring trolley system, which comprises a front frame and a rear frame which are integrally connected through a longitudinal side beam; the pouring device comprises a front frame, a pouring frame, a top feeding pipe and a waterproof layer laying trolley, wherein the front frame is provided with a longitudinal rail, the bottom of the pouring frame runs on the longitudinal rail through a rotating wheel, the top of the pouring frame is provided with a lifting rod, and the front end of the pouring gun is connected with the top of the lifting rod; the feeding end of the top feeding pipe is connected with a concrete pump truck outside the rear frame, and the discharging end of the top feeding pipe is communicated with the pouring gun through a dragging pipe; the front end and the rear end of the front frame are respectively provided with an arc climbing rail, and the waterproof layer laying trolley is arranged on the arc climbing rails; and a top die is arranged on the rear frame, and the top die and the inner wall of the tunnel form a top pouring area. Preceding frame compromise the waterproof layer and lay, reinforcement and the top is pour, and the lateral part is pour to back frame realization, pours efficiently.
Description
Technical Field
The utility model belongs to the technical field of tunnel lining, and particularly relates to a two-lining arch concrete longitudinal continuous pouring trolley system for a tunnel.
Background
When a tunnel is built, a trolley is needed to be used for building a template and then pouring concrete, the concrete is poured according to the traditional method from bottom to top, the material is fed into the layer 1 firstly, then the material is fed into the layer 2, then the material is fed into the layer 3, and finally the top is poured.
When the top of the traditional method is poured, concrete is pumped upwards from the lower part of the trolley template, and because the steel bars are dense, the concrete has poor fluidity and the like, the top concrete is easily insufficient to pour and form a cavity, the top concrete falls off in a large area, and a great safety hazard is caused to the tunnel traffic operation in the later period. With the social progress and the improvement of the quality requirement, the management and control of concrete pouring quality are more emphasized by the nation and the construction unit, and the pouring process is urgently needed to be improved.
SUMMERY OF THE UTILITY MODEL
Based on the above problems, the utility model aims to provide a trolley system for longitudinal and continuous pouring of concrete of two lining top arches in a tunnel and a method for longitudinal and continuous pouring of concrete of top arches.
In order to realize the purpose, the utility model adopts the technical scheme that: a tunnel secondary lining arch concrete longitudinal continuous pouring trolley system comprises a front frame and a rear frame which are integrally connected through a longitudinally arranged side beam;
the pouring device comprises a front frame, a pouring frame, a top feeding pipe and a waterproof layer laying trolley, wherein the front frame is provided with a longitudinal rail, the bottom of the pouring frame runs on the longitudinal rail through a rotating wheel, the top of the pouring frame is provided with a lifting rod, and the front end of the pouring gun is connected with the top of the lifting rod; the feeding end of the top feeding pipe is connected with a concrete pump truck outside the rear frame, and the discharging end of the top feeding pipe is communicated with the pouring gun through a dragging pipe; the front end and the rear end of the front frame are respectively provided with an arc climbing rail, and the waterproof layer laying trolley is arranged on the arc climbing rails;
and a top die is arranged on the rear frame, and the top die and the inner wall of the tunnel form a top pouring area.
The utility model provides a tunnel secondary lining arch concrete longitudinal continuous pouring trolley system, which comprises the following use methods:
step 1, driving the front frame to enable the front frame to be located in a tunnel to be poured, enabling a pouring frame to travel to the front end of the front frame, driving a pouring gun to descend to be close to the top of the front frame by a lifting rod, and then laying a waterproof layer and binding steel bars through the front frame;
step 2: the pouring frame is driven to enable the rear frame to be located in a tunnel to be poured, a top mold on the rear frame is in place and forms a top pouring area with the inner wall of the tunnel in an enclosing mode, the lifting rod drives the pouring gun to rise to a position matched with the top pouring area in height, and the pouring frame moves backwards and sends the pouring gun into the top pouring area;
and 3, step 3: the pouring frame travels forwards and simultaneously pours concrete into the top pouring area through the pouring gun, when pouring is completed, the pouring frame travels to the front end of the front frame, and the rear end of the pouring gun is supported on the lifting riding wheel;
and 4, step 4: the lifting rod drives the pouring gun to descend to be close to the top of the front frame, and waterproof layer laying and steel bar binding are carried out on the tunnel at the top of the front frame while the concrete is solidified to be demoulded;
and 5: and (5) repeating the operations of the steps 2 to 4 until the pouring of the whole section of the tunnel is finished.
Specifically, a longitudinal chain is arranged on one side of the longitudinal rail, a chain wheel and a motor are arranged at the bottom of the filling frame, the chain wheel is in transmission connection with the chain, and the output end of the motor is in transmission connection with a wheel shaft of the chain wheel. The motor drives the chain wheel to rotate after being started, so that the perfusion rack is driven to walk along the longitudinal rail, and the perfusion rack is driven to walk forwards or backwards while the motor rotates forwards and backwards.
Specifically, the lifting type supporting wheel is arranged at the top of the rear end of the front frame, and when the pouring frame moves to the front end of the front frame, the rear end of the pouring gun is supported on the lifting type supporting wheel. After the top pouring is completed, the pouring frame walks forwards and drives the pouring gun to withdraw from a top pouring area, the rear end of the pouring gun is supported on the lifting type supporting wheel, the lifting rod and the lifting type supporting wheel descend to drive the pouring gun to descend to a position close to the top of the front frame, an operator can conveniently stand on the front frame to perform reinforcement binding and waterproof layer laying on the inner wall of the next section of tunnel at the top of the front frame, and the pouring gun, the dragging pipe and the top feeding pipe are cleaned simultaneously.
More specifically, the lifting riding wheel comprises a riding wheel and a telescopic sleeve, wherein the telescopic sleeve is formed by sleeving an inner sleeve and an outer sleeve in a sliding manner, the riding wheel is installed at the top of the inner sleeve through a rotating shaft, the bottom of the outer sleeve is detachably connected with the top of the rear end of the front frame, adaptive pin holes are respectively formed in the inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are positioned by inserting pin columns into the pin holes. After the lifting rod drives the pouring gun to rise to the right position, the height of the inner sleeve is adjusted to enable the riding wheel to be supported at the lower end of the pouring gun, and a positioning pin is inserted for positioning; when the lifting rod drives the pouring gun to descend, the lifting riding wheel can be detached.
Specifically, the front end of the pouring gun is hinged with the top of the lifting rod.
Specifically, set up the ascending sleeve of opening on the filling frame, in the sleeve was located to the lifter cover, set up the hydro-cylinder in the sleeve, the cylinder body and the sleeve bottom of hydro-cylinder articulated, the piston rod is articulated with the lifter, and the hydro-cylinder drives the lifter and goes up and down.
The rear frame is further provided with a side die and a side die distributing pipeline, the side die and the end portion of the top die are hinged to form a side portion pouring area with the inner wall of the tunnel, the feeding end of the side die distributing pipeline is connected with a concrete pump truck outside the rear frame, the discharging end of the side die distributing pipeline extends to the side portion pouring area, and in the step 3, the side die distributing pipeline conducts concrete pouring on the side portion pouring area.
Preferably, the casting gun is sleeved with a protective sleeve, a port of the protective sleeve is positioned outside the casting gun and close to the rear end, a liquid level sensing alarm is arranged at the position, located at the port of the protective sleeve, of the top of the casting gun, when the concrete is poured to flood the liquid level sensing alarm at the top of the casting gun, an alarm device gives out an alarm sound, an electric control device gives out a signal automatically, and the pouring quality is monitored timely.
Specifically, the dragging pipe comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected through a rotatable pipe joint, the first pipe section comprises a first elbow and a bent pipe which are sequentially connected, wherein the end part of the first elbow is connected with the casting gun through the rotatable pipe joint, one end of the bent pipe is an inclined section connected with the first elbow, and the other end of the bent pipe is a horizontal section connected with a connecting block at the side part of the lifting rod through a hoop; the second pipe section consists of a short pipe, a second elbow, a first long pipe and a third elbow which are connected in sequence, and the end part of the short pipe is connected with the horizontal section of the elbow through a rotatable pipe joint; the third pipe section consists of a fourth elbow, a second long pipe and a fifth elbow which are connected in sequence, and the fourth elbow is connected with the third elbow through a rotatable pipe joint; the top feeding pipe is an L-shaped pipe formed by connecting a horizontal pipe and a vertical pipe through an elbow, the vertical pipe is vertically arranged at the middle section of the side part of the front frame, the feeding end of the lower end of the vertical pipe is connected with a concrete pump truck outside the rear frame through a pipeline, and the discharging end of the horizontal pipe is connected with a fifth elbow through a rotatable pipe joint; when the pouring frame drives the pouring gun to longitudinally walk on the top of the frame, all pipe sections of the dragging pipe swing along with the walking pouring gun.
More specifically, a fixed pipe frame and a movable pipe frame are installed on the frame, wherein a horizontal pipe of the top feeding pipe is connected with the fixed pipe frame through a hoop, the movable pipe frame is composed of a first straight rod and a second straight rod which are sequentially hinged, the top of the first straight rod is connected with the horizontal section of the bent pipe through a pipe sleeve, and the bottom of the second straight rod is hinged with the top of the fixed pipe frame; the side part of the first long pipe is connected with the connecting block at the side part of the first straight rod through a hoop, and the side part of the second long pipe is connected with the side part of the second straight rod through the hoop; the height of the hinged part of the first straight rod and the second straight rod is the same as that of the movable connecting part of the third elbow and the fourth elbow, and the height of the hinged part of the second straight rod and the fixed pipe frame is the same as that of the movable connecting part of the fifth elbow and the horizontal pipe of the top feeding pipe; when the dragging pipe swings, the movable pipe support swings along with the dragging pipe, and the second pipe section and the third pipe section are stably supported.
Specifically, a blocking block is arranged at the front end of the rear frame, the blocking block is blocked at the front end of a top pouring area, and a guide hole matched with a pouring gun is formed in the blocking block; the casting gun passes through the guide hole and then is sent into a top casting area; the plugging block supports and guides the pouring gun while realizing the plugging of a pouring area.
The utility model has the beneficial effects that:
the tunnel two-lining top arch concrete longitudinal continuous pouring trolley system is used for longitudinal continuous pouring of concrete, pouring of vault concrete is carried out through the arrangement of a pouring gun, the front frame gives consideration to waterproof layer laying, steel bar binding and top pouring, the rear frame achieves side portion pouring, the concrete in the previous section is solidified to be demoulded, meanwhile, waterproof layer laying and steel bar binding are carried out on the next section of tunnel, the waterproof layer laying, the steel bar binding and the concrete demould are not interfered with each other, and pouring efficiency is high.
Drawings
FIG. 1 is an overall side view;
FIG. 2 is a side diagrammatic view of the front frame;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a front cross-sectional view of the front frame;
FIG. 5 is a view showing the structure of the perfusion rack and the dragging pipe;
FIG. 6 is a schematic view of a casting gun;
the device comprises a front frame 1, a rear frame 2, a top die 21, a side die 22, a blocking block 23, a pouring frame 3, a lifting rod 31, a lifting riding wheel 4, a pouring gun 5, a top feeding pipe 6, a waterproof layer laying trolley 7, a longitudinal rail 8, a dragging pipe 9, a first pipe section 901, a second pipe section 902, a third pipe section 903, a chain 10, a chain wheel 11, a fixed pipe frame 12, a movable pipe frame 13, a first straight rod 131, a second straight rod 132, a climbing rail 14 and a liquid level sensing alarm 15.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples
As shown in fig. 1 to 6, the present embodiment provides a tunnel secondary lining roof arch concrete longitudinal continuous pouring trolley system, which comprises a front frame 1 and a rear frame 2 integrally connected by a longitudinally arranged side beam;
the front frame 1 is provided with a pouring frame 3, a lifting riding wheel 4, a pouring gun 5, a top feeding pipe 6 and a waterproof layer laying trolley;
two parallel longitudinal rails 8 are arranged on the front frame 1, and the bottom of the perfusion rack 3 runs on the longitudinal rails 8 through a rotating wheel; in this embodiment, as shown in fig. 3, a longitudinal chain 10 is disposed on one side of the longitudinal rail 8, a sprocket 11 and a motor are disposed at the bottom of the perfusion rack 3, the sprocket is in transmission connection with the chain 10, and an output end of the motor is in transmission connection with a wheel axle of the sprocket 11;
the top of the pouring frame 3 is provided with a lifting rod 31, the pouring frame 3 is provided with a sleeve with an upward opening, the lifting rod 31 is sleeved in the sleeve, an oil cylinder is arranged in the sleeve, a cylinder body of the oil cylinder is hinged with the bottom of the sleeve, a piston rod is hinged with the bottom of the lifting rod 31, and the front end of the pouring gun 5 is hinged with the top of the lifting rod 31;
the lifting riding wheel 4 is arranged at the top of the rear end of the front frame 1 and comprises a riding wheel and a telescopic sleeve, the telescopic sleeve is formed by an inner sleeve and an outer sleeve which are sleeved in a sliding manner, the riding wheel is arranged at the top of the inner sleeve through a rotating shaft, and the bottom of the outer sleeve is detachably connected with the top of the rear end of the front frame 1;
the feeding end of the top feeding pipe 6 is connected with a concrete pump truck outside the rear frame 2, and the discharging end of the top feeding pipe is communicated with the pouring gun 5 through a dragging pipe 9; as shown in fig. 5, in this embodiment, the dragging pipe 9 includes a first pipe segment 901, a second pipe segment 902, and a third pipe segment 903 sequentially connected by a rotatable pipe joint, where the first pipe segment 901 is composed of a first elbow and a bent pipe connected in sequence, where an end of the first elbow is connected to the casting gun 5 through the rotatable pipe joint, one end of the bent pipe is an inclined segment connected to the first elbow, and the other end of the bent pipe is a horizontal segment connected to a side connection block of the lifting rod 31 through a collar; the second pipe section 902 is composed of a short pipe, a second elbow, a first long pipe and a third elbow which are connected in sequence, and the end part of the short pipe is connected with the horizontal section of the elbow through a rotatable pipe joint; the third pipe section 903 is composed of a fourth elbow, a second long pipe and a fifth elbow which are connected in sequence, and the fourth elbow is connected with the third elbow through a rotatable pipe joint; the top feeding pipe 6 is an L-shaped pipe formed by connecting a horizontal pipe and a vertical pipe through an elbow, the vertical pipe is vertically arranged at the middle section of the side part of the front frame 1, the feeding end of the lower end of the vertical pipe is connected with a concrete ground pump truck outside the rear frame 2 through a pipeline, and the discharging end of the horizontal pipe is connected with a fifth elbow through a rotatable pipe joint; a fixed pipe frame 12 and a movable pipe frame 13 are installed on the frame, a horizontal pipe of the top feeding pipe 6 is connected with the fixed pipe frame 12 through a hoop, the movable pipe frame 13 is composed of a first straight rod 131 and a second straight rod 132 which are sequentially hinged, the top of the first straight rod 131 is connected with the horizontal section of the bent pipe through a pipe sleeve, and the bottom of the second straight rod 132 is hinged with the top of the fixed pipe frame 12; the side part of the first long pipe is connected with the connecting block at the side part of the first straight rod 131 through a clamp, and the side part of the second long pipe is connected with the side part of the second straight rod 132 through a clamp; the height of the hinged part of the first straight rod 131 and the second straight rod 132 is the same as that of the movable connecting part of the third elbow and the fourth elbow, and the height of the hinged part of the second straight rod 132 and the fixed pipe frame 12 is the same as that of the movable connecting part of the fifth elbow and the horizontal pipe of the top feeding pipe 6;
arc-shaped climbing rails 14 are respectively arranged at the front end and the rear end of the front frame 1, and the waterproof layer laying trolley 7 is installed on the arc-shaped climbing rails 14;
as shown in fig. 6, in this embodiment, a protective sleeve is sleeved outside the casting gun 5, a port of the protective sleeve is located outside the casting gun 5 near the rear end, and a liquid level sensing alarm 15 is arranged at the top of the casting gun 5 at the port of the protective sleeve;
the rear frame 2 is provided with a top die 21, a side die 22 and a side die distributing pipeline, the top die 21 is used for enclosing a top pouring area with the top wall in the tunnel, the side die 22 is hinged with the end part of the top die 21 and is used for enclosing a side pouring area with the inner side wall of the tunnel, the feeding end of the side die distributing pipeline is connected with a concrete pump truck outside the rear frame 2, and the discharging end extends to the side pouring area;
the front end of back frame 2 sets up plugging block 23, and the regional front end is pour at the top in plugging block 23 shutoff, sets up the guiding hole with pouring gun 5 adaptation on the plugging block 23.
The utility model provides a tunnel secondary lining arch concrete longitudinal continuous pouring trolley system, which comprises the following use methods:
step 1, driving the front frame 1 to be positioned in a tunnel to be poured, enabling a pouring frame 3 to travel to the front end of the front frame 1, driving a pouring gun 5 to descend to be close to the top of the front frame 1 by a lifting rod 31, and then laying a waterproof layer and binding steel bars through the front frame 1;
step 2: the rear frame 2 is driven to be positioned in a tunnel to be poured, a top pouring area and a side pouring area are respectively surrounded by a top die 21 and a side die 22 on the rear frame 2 and the inner wall of the tunnel after the top die and the side die are lifted to the right, a lifting rod 31 drives a pouring gun 5 to be lifted to a position matched with the height of the top pouring area, and the pouring gun 5 passes through a guide hole of a plugging block 23 and is sent into the top pouring area while a pouring frame 3 travels backwards;
and step 3: the pouring frame 3 moves forwards and simultaneously pours concrete into the top pouring area through the pouring gun 5, the side-mold distributing pipeline pours concrete into the side pouring area, and during the period, when the concrete pouring floods the liquid level sensing alarm at the top of the pouring gun 5, the alarm device gives out alarm sound, the electric control device automatically gives out signals, and the pouring quality is monitored in time; when pouring is finished, the pouring frame 3 travels to the front end of the front frame 1, and the rear end of the pouring gun 5 is supported on the lifting riding wheel 4;
and 4, step 4: the lifting rod 31 drives the pouring gun 5 to descend to be close to the top of the front frame 1, and waterproof layer laying and steel bar binding are carried out on the tunnel at the top of the front frame 1 while the concrete is solidified to be demoulded;
and 5: and (5) repeating the operations of the steps 2 to 4 until the whole section of the tunnel is poured.
The above examples of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes and modifications of the present invention are within the scope of the present invention.
Claims (10)
1. A tunnel secondary lining arch concrete longitudinal continuous pouring trolley system is characterized by comprising a front frame and a rear frame which are integrally connected through a longitudinally arranged side beam;
the pouring device is characterized in that a pouring frame, a pouring gun, a top feeding pipe and a waterproof layer laying trolley are arranged on the front frame, a longitudinal rail is arranged on the front frame, the bottom of the pouring frame runs on the longitudinal rail through a rotating wheel, a lifting rod is arranged at the top of the pouring frame, and the front end of the pouring gun is connected with the top of the lifting rod; the feeding end of the top feeding pipe is connected with a concrete ground pump truck outside the rear frame, and the discharging end of the top feeding pipe is communicated with the pouring gun through a dragging pipe; arc-shaped climbing rails are respectively arranged at the front end and the rear end of the front frame, and the waterproof layer laying trolley is installed on the arc-shaped climbing rails;
and a top die is arranged on the rear frame, and the top die and the inner wall of the tunnel form a top pouring area.
2. The tunnel secondary lining arch concrete longitudinal continuous pouring trolley system according to claim 1, characterized in that a longitudinal chain is arranged on one side of the longitudinal rail, a chain wheel and a motor are arranged at the bottom of the pouring frame, the chain wheel is in transmission connection with the chain, and the output end of the motor is in transmission connection with a wheel shaft of the chain wheel.
3. The system of claim 1, wherein the elevating type supporting wheels are arranged on the top of the rear end of the front frame, and the rear end of the casting gun is supported on the elevating type supporting wheels when the casting frame is driven to the front end of the front frame.
4. The system as claimed in claim 3, wherein the elevating type supporting roller comprises a supporting roller and a telescopic sleeve, the telescopic sleeve is composed of an inner sleeve and an outer sleeve which are slidably sleeved, the supporting roller is mounted on the top of the inner sleeve through a rotating shaft, the bottom of the outer sleeve is detachably connected with the top of the rear end of the front frame, the inner sleeve and the outer sleeve are respectively provided with a pin hole, and the inner sleeve and the outer sleeve are positioned by inserting a pin into the pin hole.
5. The tunnel secondary lining top arch concrete longitudinal continuous pouring trolley system as claimed in claim 1, wherein the rear frame is further provided with side dies and side die material distribution pipelines, the side dies and the end portions of the top dies are hinged to enclose a side pouring area with the inner wall of the tunnel, the feeding ends of the side die material distribution pipelines are connected with a concrete ground pump truck outside the rear frame, and the discharging ends of the side die material distribution pipelines extend to the side pouring area.
6. The system of claim 1, wherein the casting gun is sleeved with a protective sleeve, a port of the protective sleeve is positioned outside the casting gun and near the rear end, and a liquid level sensing alarm is arranged at the top of the casting gun and at the port of the protective sleeve.
7. The tunnel secondary roof arch concrete longitudinal continuous pouring trolley system according to claim 1, wherein the dragging pipe comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected through a rotatable pipe joint, the first pipe section is composed of a first elbow and a bent pipe which are sequentially connected, wherein the end part of the first elbow is connected with a pouring gun through the rotatable pipe joint, one end of the bent pipe is an inclined section connected with the first elbow, and the other end of the bent pipe is a horizontal section connected with a side connecting block of the lifting rod through a hoop; the second pipe section consists of a short pipe, a second elbow, a first long pipe and a third elbow which are connected in sequence, and the end part of the short pipe is connected with the horizontal section of the elbow through a rotatable pipe joint; the third pipe section consists of a fourth elbow, a second long pipe and a fifth elbow which are connected in sequence, and the fourth elbow is connected with the third elbow through a rotatable pipe joint; the top feeding pipe is an L-shaped pipe formed by connecting a horizontal pipe and a vertical pipe through an elbow, the vertical pipe is vertically arranged at the middle section of the side part of the front frame, the lower end feeding end of the vertical pipe is connected with a concrete pump truck outside the rear frame through a pipeline, and the discharging end of the horizontal pipe is connected with a fifth elbow through a rotatable pipe joint.
8. The system of claim 7, wherein a fixed pipe frame and a movable pipe frame are mounted on the frame, wherein the horizontal pipe of the top feeding pipe is connected with the fixed pipe frame through a hoop, the movable pipe frame is composed of a first straight rod and a second straight rod which are sequentially hinged, the top of the first straight rod is connected with the horizontal section of the bent pipe through a pipe sleeve, and the bottom of the second straight rod is hinged with the top of the fixed pipe frame; the side part of the first long pipe is connected with the connecting block at the side part of the first straight rod through a hoop, and the side part of the second long pipe is connected with the side part of the second straight rod through the hoop; the height of the hinged part of the first straight rod and the second straight rod is the same as that of the movable connecting part of the third elbow and the fourth elbow, and the height of the hinged part of the second straight rod and the fixed pipe frame is the same as that of the movable connecting part of the fifth elbow and the horizontal pipe of the top feeding pipe.
9. The system of claim 1, wherein a blocking block is arranged at the front end of the rear frame, the blocking block is blocked at the front end of the top pouring area, and a guide hole matched with a pouring gun is formed in the blocking block.
10. The system for the longitudinal continuous pouring trolley for the concrete of the secondary roof arch lining of the tunnel according to claim 1, wherein a sleeve with an upward opening is arranged on the pouring frame, the lifting rod is sleeved in the sleeve, an oil cylinder is arranged in the sleeve, a cylinder body of the oil cylinder is hinged with the bottom of the sleeve, and a piston rod is hinged with the bottom of the lifting rod; the front end of the pouring gun is hinged with the top of the lifting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220006793.8U CN217028932U (en) | 2022-01-04 | 2022-01-04 | Two lining crown arch concrete in tunnel vertically pour into platform truck system in succession |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220006793.8U CN217028932U (en) | 2022-01-04 | 2022-01-04 | Two lining crown arch concrete in tunnel vertically pour into platform truck system in succession |
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| Publication Number | Publication Date |
|---|---|
| CN217028932U true CN217028932U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220006793.8U Active CN217028932U (en) | 2022-01-04 | 2022-01-04 | Two lining crown arch concrete in tunnel vertically pour into platform truck system in succession |
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| Country | Link |
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| CN (1) | CN217028932U (en) |
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2022
- 2022-01-04 CN CN202220006793.8U patent/CN217028932U/en active Active
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