A lining trolley and a method of using the same

Abstract

The present invention relates to the field of tunnel construction facilities, and discloses a lining trolley and a method for using the lining trolley, comprising a workbench and two groups of side frames, wherein the two groups of side frames are tilted and fixed on both sides of the bottom of the workbench, and the bottom sides of the two groups of side frames are fixed with a bottom frame, and the top side of the workbench is fixed with a top mold, and the outer sides of the top mold are hinged with side molds supported on the outer sides of the side frames, and the four corners of the top mold are provided with grouting components, and the side molds and the outer edges of the top mold are rotatably provided with synchronous belts supporting the grouting components. The beneficial effect is that the present invention realizes automatic grouting layer by layer by providing a grouting component that can extend out of the top mold, and supports the grouting component to extend into the grouting mold cavity through a synchronous belt that can move along the top mold and the side mold, thereby improving construction efficiency; there is no need to open an operating window on the template surface, thereby improving the integrity of the template, ensuring the flatness of the concrete surface, and facilitating demoulding, and at the same time, there is no need to manually operate the grouting pipe to grout and vibrate along the operating window, thereby reducing manual labor and improving operation convenience.

Description

Technical Field

[0001] The invention relates to the field of tunnel construction facilities, and in particular to a lining trolley and a use method thereof. Background Art

[0002] The lining trolley is an important equipment used in the construction of underground projects such as tunnels, subways, and mines. Its main functions include:

[0003] 1. Support function: Concrete is poured on the surface of the tunnel surrounding rock after excavation to form a support structure to prevent the surrounding rock from collapsing and protect the construction safety. In other words, the lining trolley can provide a stable working platform so that workers can carry out concrete pouring operations in a safe environment;

[0004] 2. Formwork function: The formwork system of the lining trolley can be designed in shape and size according to construction needs, providing precise molds for concrete pouring, ensuring that the geometric dimensions and quality of the lining structure meet the design standards and improve the lining strength;

[0005] 3. Improve construction efficiency: The use of lining trolleys can realize mechanized construction. Compared with traditional wooden or steel molds, lining trolleys are reusable, which reduces material consumption and production time, and reduces construction costs.

[0006] However, the current lining trolley needs to open multiple working windows at different heights on the mold surface when in use. For example, the Chinese invention patent with application number 202311452315.5 and patent name is an open concrete pouring lining trolley with a mechanical arm. When pouring concrete, it feeds from the bottom row of working windows on the side template. When the concrete is poured to the point where it is about to be flush with the bottom edge of the working window, a stirring rod is inserted to vibrate the concrete. Then, the working window of that layer is closed, and grouting and vibration are repeated from the upper working window, and so on, until grouting is finally performed in the center of the top and capping is performed. This type of lining trolley has a complex structure, low construction efficiency, and the densely distributed working windows result in insufficient strength and flatness of the template, making demolding difficult. In addition, since the mold is arched, it cannot be vibrated when capping, and manual operation with a vibrating rod is required throughout the process, resulting in a large workload and slow construction speed. Summary of the invention

[0007] The purpose of the present invention is to provide a lining trolley and a method for using the same in order to solve the above-mentioned problems. A grouting assembly that can extend out of the top mold is provided, and the grouting assembly is supported by a synchronous belt that can move along the top mold and the side mold to extend into the grouting mold cavity, so as to realize automatic grouting layer by layer and improve construction efficiency. There is no need to open an operating window on the surface of the template, which improves the integrity of the template, ensures the flatness of the concrete surface, and facilitates demoulding. At the same time, there is no need to manually operate the grouting pipe to grout and vibrate along the operating window, which reduces the amount of manual labor and improves the convenience of operation. Please see the following description for details.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The present invention provides a lining trolley and a method for using the lining trolley, comprising a workbench and two groups of side frames, wherein the two groups of side frames are tilted and fixed at both sides of the bottom of the workbench, and the bottom sides of the two groups of side frames are fixed with bottom frames, a top mold is fixed at the top side of the workbench, and side molds supported on the outside of the side frames are hingedly connected on both sides of the top mold, and grouting components are arranged at four corners of the top mold, and synchronous belts supporting the grouting components are arranged for rotation along the outer edges of the side molds and the top molds, and guide grooves accommodating the movement of the synchronous belts are arranged on the outer sides of the side molds and the top molds;

[0010] The four corners of the top mold are vertically penetrated with limiting holes for accommodating the grouting assembly, the grouting assembly includes a synchronous tube passing through the grouting hole downward, a fixing plate connected to the synchronous tube is fixed on the outer side of the synchronous belt, the top of the synchronous tube is connected to a bellows, the top of the bellows is fixed with a pipe edge abutting the inner side of the limiting hole, a guide tube is arranged below the synchronous tube, a pipe joint connected to the guide tube is arranged at the bottom end of the synchronous tube, a rotating frame is arranged on the inner side of the synchronous tube, and a stirring rod extending out of the bellows is arranged on the top side of the rotating frame.

[0011] Preferably, a slurry hole is vertically penetrated on the outer circumference of the rotating frame, the limiting hole is a trumpet-shaped structure with the top opening expanding outward, and a plug cover that can close the top edge of the bellows is fixed to the top side of the stirring rod.

[0012] Preferably, the workbench is a rectangular frame structure, with support plates fixed laterally on the front and rear inner sides of the workbench, and fixed plates extending vertically on the support plates and the four corners of the top side of the workbench, a longitudinally extending drive shaft is rotatably engaged in the middle of the fixed plate, a drive motor supporting the rotation of the drive shaft is arranged on the outer side of the fixed plate, and a drive wheel supporting the rotation of the synchronous belt is coaxially fixed on the outer side of the drive shaft.

[0013] Preferably, a limiting ring for accommodating the synchronization tube is arranged above the workbench, a connecting ear supporting the limiting ring is fixed on the inner side of the workbench, and support plates vertically connected to the bottom side of the top mold are fixed to the front and rear parts of the top side of the limiting ring, and two groups of support plates are symmetrically arranged on the front and rear sides of the limiting hole.

[0014] Preferably, a retaining frame for tightening the synchronous belt is provided on the inner side of the side mold, the top side of the guide groove is communicated with the limiting hole, and the bottom side of the guide groove on the bottom side of the side mold is an arc-shaped fillet, and the retaining frame includes a sliding frame extending radially along the side mold, and the sliding frame is a rectangular frame structure, and an auxiliary frame is slidably arranged inside the sliding frame along its length direction, and a pulley for tightening the synchronous belt is rotatably arranged in the middle of the auxiliary frame, and a sliding rod passing through the sliding frame is fixed to the other side of the auxiliary frame, and a retaining ring is fixed to the outer end of the sliding rod, and a spring is provided on the outer side of the sliding rod between the auxiliary frame and the sliding frame.

[0015] Preferably, the top mold and the side mold are hinged via a rotating seat, the rotating seat comprises a fixed ear and a movable ear hinged to each other, the fixed ear is welded and fixed to the bottom corner of the top mold, and the movable ear is welded and fixed to the inner side of the top edge of the side mold.

[0016] Preferably, the base frame includes a longitudinally extending ground beam and a lifting beam, the lifting beam is arranged above the ground beam, and a lifting hydraulic cylinder supporting the lifting beam is fixed on the top side of the ground beam, the front and rear parts of the bottom side of the ground beam are hinged with wheel frames, and two sets of track wheels are arranged on the bottom of the wheel frame for parallel rotation front and back.

[0017] Preferably, the side frame includes two parallel diagonal braces, both ends of the diagonal braces are fixed with mounting plates, and the diagonal braces are respectively fixedly connected to the workbench and the lifting beam through the mounting plates.

[0018] Preferably, a support ear is fixed on the outer side of the diagonal brace, a closing hydraulic cylinder is hinged on the outer side of the support ear, the outer telescopic end of the closing hydraulic cylinder is hinged to the inner side of the side mold, and a pull rod is longitudinally connected between the fixed ends of the two groups of closing hydraulic cylinders.

[0019] A method for using a lining trolley comprises the following steps:

[0020] a. When lining grouting is performed on the inner wall of the tunnel, the track wheel support device of the bottom frame is moved to the construction position along the tunnel ground rail as a whole, and then the side frame and the workbench are supported by the lifting hydraulic cylinder to move up, and the top mold is lifted to the position of the tunnel top side mold, and the side mold is extended by closing the hydraulic cylinder to push the side mold to expand outward under the support of the rotating seat, and the junction of the side mold and the top mold is abutted and closed, and the end face of the trolley is closed by the end mold, so that the top mold and the side mold are combined to form a grouting mold for the inner wall of the tunnel;

[0021] b. After the mold is positioned, the side mold and the top mold cooperate with the inner wall of the tunnel to form a mold cavity. The driving motor drives the driving wheel to rotate, and the driving wheel drives the synchronous belt to support the grouting assembly as a whole to extend into the mold cavity. At this time, the synchronous belt supports the synchronous pipe and the corrugated pipe to extend downward into the outer side of the side mold, so that the concrete is injected into the mold cavity from bottom to top by using the guide pipe. At the same time, the synchronous belt supports the grouting assembly to move upward, and the stirring rod extending out of the corrugated pipe is used to realize synchronous vibration grouting;

[0022] c. When the concrete fills the mold cavity outside the side mold, the synchronous belt pulls the grouting assembly into the limit hole of the top mold. At this time, the fixed pipe extends between the two sets of support plates, and the edge of the corrugated pipe abuts against the inner wall of the limit hole. The stirring rod is still in the position of extending out of the pipe edge. Then, the concrete continues to be discharged outward along the corrugated pipe, and the concrete is vibrated and compacted by the vertically extending stirring rod;

[0023] d. When the mold cavity on the top side of the top mold is also filled with concrete, the driving motor is driven to rotate and drive the driving wheel to support the synchronous belt to continue to pull the fixed plate downward, so that the fixed plate drives the synchronous pipe to continue to move downward. At this time, the pipe edge is blocked by the limit hole, and the synchronous pipe continues to pull down the bottom end of the corrugated pipe, so that the corrugated pipe is stretched by the synchronous pipe. At the same time, the rotating frame is pulled by the synchronous pipe to drive the stirring rod to move downward until the plug cover at the top of the stirring rod moves down to abut against the inner side of the top pipe edge of the corrugated pipe, and the plug cover is used to close the top port of the corrugated pipe, so as to separate the grouting component from the concrete in the mold cavity and end the grouting process;

[0024] e. When the concrete in the mold cavity is dry, the lifting hydraulic cylinder and the closing hydraulic cylinder will shrink synchronously to move the top mold downward, and at the same time the side molds will close inward, so as to quickly realize the demoulding action, separate the entire trolley from the inner wall of the tunnel, and apply the release agent to the outside of the top mold and side molds to continue moving along the length of the tunnel to the next section construction position.

[0025] The beneficial effects are as follows: 1. The present invention provides a grouting assembly that can extend out of the top mold, and supports the grouting assembly to extend into the grouting mold cavity through a synchronous belt that can move along the top mold and the side mold, so that it can move upward along the outer side of the side mold to the top side of the top mold, thereby realizing automatic grouting layer by layer and improving construction efficiency;

[0026] 2. No need to open an operating window on the template surface, which improves the integrity of the template and improves the inconvenience of grouting between the template and the tunnel wall through the operating window in the existing technology. It can ensure the flatness of the concrete surface and facilitate demoulding. At the same time, there is no need to manually operate the grouting pipe to extend into the operating window for grouting and extend the vibrating rod along the operating window to vibrate the concrete, which reduces the amount of manual labor and improves the operation speed.

[0027] 3. A stirring rod extending out of the bellows port is built into the synchronous pipe, which automatically completes the vibration and compaction operation during grouting, improves the uniformity of concrete filling, and improves the quality of the tunnel inner wall lining;

[0028] 4. In addition, after the grouting assembly moves to the top side of the top mold, it can be retracted into the middle of the top mold, thereby ensuring that the mold cavity above the top mold can be evenly grouted, and the top area can be vibrated by extending the stirring rod from the corrugated pipe, thereby solving the problem that the top working window of the existing lining trolley cannot fill the concrete densely and is difficult to vibrate. At the same time, the plug cover at the top of the stirring rod can be used to seal the top edge of the corrugated pipe, thereby ensuring the flatness of the tunnel lining concrete molding and improving the convenience of operation during the capping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a main structural diagram of the present invention;

[0031] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 3 It is a right view structural diagram of the present invention;

[0033] Figure 4 It is a schematic diagram of the structural decomposition of the present invention;

[0034] Figure 5 It is a schematic diagram of the structural disassembly of the bottom frame and the side frame of the present invention;

[0035] Figure 6 It is a schematic diagram of the structural disassembly of the workbench of the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the workbench of the present invention in another direction;

[0037] Figure 8 It is a partial structural schematic diagram of the present invention;

[0038] Fig. 9 It is a schematic diagram of the structural disassembly of the side mold and the synchronous belt of the present invention;

[0039] Fig.10 The present invention Fig. 9 A magnified view of the structure at A;

[0040] Fig.11 The present invention Fig. 9 A magnified view of the structure at B;

[0041] Fig.12It is a structural schematic diagram of another aspect of the present invention.

[0042] The following are the descriptions of the reference numerals:

[0043] 1. Base frame; 101. Ground beam; 102. Lifting beam; 103. Lifting hydraulic cylinder; 104. Wheel frame; 105. Track wheel; 2. Side frame; 201. Diagonal brace; 201a. Mounting plate; 202. Support ear; 203. Closing hydraulic cylinder; 204. Pull rod; 3. Workbench; 301. Support plate; 302. Fixing plate; 303. Driving motor; 304. Driving shaft; 305. Driving wheel; 306. Connecting ear; 307. Limiting ring; 308. Support plate; 4. Side mold; 5. Top mold; 501. Limiting hole; 6, grouting assembly; 601, synchronous pipe; 602, bellows; 602a, pipe edge; 603, pipe joint; 604, rotating frame; 604a, slurry hole; 605, stirring rod; 606, plug cover; 7, synchronous belt; 701, fixed plate; 8, guide pipe; 9, retaining frame; 901, sliding frame; 902, sliding rod; 903, auxiliary frame; 904, pressure wheel; 905, spring; 906, retaining ring; 10, rotating seat; 10a, fixed ear; 10b, movable ear; 11, guide groove. DETAILED DESCRIPTION

[0044] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0045] See also Figure 1-Figure 12 As shown, the present invention provides a lining trolley and a method for using the lining trolley, comprising a workbench 3 and two sets of side frames 2, the two sets of side frames 2 are tilted and fixed on both sides of the bottom of the workbench 3, and the bottom sides of the two sets of side frames 2 are fixed with a bottom frame 1, the top side of the workbench 3 is fixed with a top mold 5, the outer sides of the top mold 5 are hinged with side molds 4 supported on the outer sides of the side frames 2, the four corners of the top mold 5 are provided with grouting components 6, the outer edges of the side molds 4 and the top mold 5 are rotatably provided with synchronous belts 7 supporting the grouting components 6, the side molds 4 and the top mold 5 form a mold for filling concrete into the tunnel wall, and the outer sides of the side molds 4 and the top mold 5 are provided with guide grooves 11 for accommodating the movement of the synchronous belt 7;

[0046] The top mold 5 has four corners vertically penetrated with limiting holes 501 for accommodating the grouting assembly 6. The grouting assembly 6 includes a synchronous pipe 601 that passes through the grouting hole downward. A fixing plate 701 connected to the synchronous pipe 601 is fixed on the outside of the synchronous belt 7. The top of the synchronous pipe 601 is connected to a bellows 602. The top of the bellows 602 is fixed with a pipe edge 602a that abuts against the inner side of the limiting hole 501 to prevent the bellows 602 from slipping out of the limiting hole 501 as a whole. A guide pipe 8 is arranged below the synchronous pipe 601. A pipe joint 603 connected to the guide pipe 8 is arranged at the bottom end of the synchronous pipe 601. A rotating frame 604 is arranged on the inside of the synchronous pipe 601. A stirring rod 605 extending out of the bellows 602 is arranged on the top side of the rotating frame 604. The stirring rod 605 is a vibrating rod commonly used in this field, which belongs to the prior art and will not be described here.

[0047] As an optional embodiment, a slurry hole 604a is vertically penetrated on the outer circumference of the rotating frame 604 to ensure that the concrete mortar can enter the corrugated pipe 602 through the inner side of the rotating frame 604 to avoid the rotating frame 604 from clogging the concrete delivery pipeline. The limit hole 501 is a trumpet-shaped structure with the top opening expanding outward. A plug cover 606 that can close the top pipe edge 602a of the corrugated pipe 602 is fixed on the top side of the stirring rod 605. The workbench 3 is a rectangular frame structure. The front and rear parts of the inner side of the workbench 3 are both horizontally fixed with support plates 301, and the support plates 301 are connected to the workbench 3. A fixed plate 302 is vertically extended at each of the four corners on the top side of the platform 3. A driving shaft 304 extending longitudinally is rotatably matched in the middle of the fixed plate 302. A driving motor 303 supporting the rotation of the driving shaft 304 is arranged on the outside of the fixed plate 302. A driving wheel 305 supporting the rotation of the synchronous belt 7 is coaxially fixed on the outside of the driving shaft 304 to ensure that the synchronous belt 7 can drive the grouting assembly 6 to move as a whole under the support of the driving wheel 305, so as to change the positions of the synchronous pipe 601 and the bellows 602, and realize the layer-by-layer grouting action at different positions in the outer mold cavity of the top mold 5 and the side mold 4;

[0048] A limiting ring 307 for accommodating the synchronous tube 601 is arranged above the workbench 3. The limiting ring 307 and the synchronous tube 601 are in clearance fit. An inner ring is fixed to the bottom side of the limiting ring 307 to block the synchronous tube 601 from moving further downward, and the guide tube 8 passes downward through the inner ring. A connecting ear 306 supporting the limiting ring 307 is fixed to the inside of the workbench 3. Support plates 308 vertically connected to the bottom side of the top mold 5 are fixed to the front and rear parts of the top side of the limiting ring 307. Two groups of support plates 308 are symmetrically arranged on the front and rear sides of the limiting hole 501 to achieve fixed connection between the workbench 3 and the top mold 5.

[0049] A retainer 9 for tightening the synchronous belt 7 is arranged on the inner side of the side mold 4, the top side of the guide groove 11 is connected to the limiting hole 501, and the bottom edge of the guide groove 11 on the bottom side of the side mold 4 is an arc-shaped fillet to ensure that the synchronous belt 7 can smoothly pass through the bottom edge position of the guide groove 11. The retainer 9 includes a slide frame 901 extending radially along the side mold 4. The slide frame 901 is a rectangular frame structure. An auxiliary frame 903 is slidably arranged inside the slide frame 901 along its length direction. The auxiliary frame 903 The auxiliary frame 903 is provided with a pulley for pressing against the synchronous belt 7, and a slide bar 902 passing through the slide frame 901 is fixed on the other side of the auxiliary frame 903. The slide bar 902 and the slide frame 901 are in clearance fit, and a retaining ring 906 is fixed on the outer end of the slide bar 902. A spring 905 is sleeved on the outer side of the slide bar 902 between the auxiliary frame 903 and the slide frame 901, and the spring 905 is used to push the auxiliary frame 903, so as to use the pulley inside the auxiliary frame 903 to keep the synchronous belt 7 pressed against and supported;

[0050] In addition, the top mold 5 and the side mold 4 are hinged through a rotating seat 10. The rotating seat 10 includes a fixed ear 10a and a movable ear 10b that are hinged to each other. The fixed ear 10a is welded and fixed at the bottom corner of the top mold 5, and the movable ear 10b is welded and fixed to the inner side of the top edge of the side mold 4 to ensure that the side mold 4 can be folded inwardly, so as to separate the side mold 4 from the concrete layer formed on the outside;

[0051] The base frame 1 includes a longitudinally extending ground beam 101 and a lifting beam 102. The lifting beam 102 is arranged above the ground beam 101, and a lifting hydraulic cylinder 103 supporting the lifting beam 102 is fixed on the top side of the ground beam 101, so that the lifting action of the top mold 5 and the side mold 4 can be realized. The front and rear parts of the bottom side of the ground beam 101 are hinged with wheel frames 104. Two sets of track wheels 105 are arranged on the bottom of the wheel frame 104 for parallel rotation. The side frame 2 includes two parallelly distributed diagonal braces 201. Both ends of the diagonal brace 201 are fixed with mounting plates 201a. The diagonal brace 201 is fixedly connected to the workbench 3 and the lifting beam 102 respectively through the mounting plate 201a, and a supporting ear 202 is fixed to the outer side of the diagonal brace 201. A closing hydraulic cylinder 203 is hinged on the outer side of the supporting ear 202. The outer telescopic end of the closing hydraulic cylinder 203 is hinged to the inner side of the side mold 4, and a pull rod 204 is longitudinally connected between the fixed ends of the two groups of closing hydraulic cylinders 203, so that the side mold 4 can be supported by the closing hydraulic cylinder 203, thereby controlling the opening angle of the side mold 4 and realizing the folding and demoulding of the side mold 4 and the opening and closing of the side mold.

[0052] A method for using a lining trolley comprises the following steps:

[0053] a. When lining grouting is performed on the inner wall of the tunnel, the track wheel 105 of the bottom frame 1 supports the whole device to move along the tunnel track to the construction position, and then the lifting hydraulic cylinder supports the side frame 2 and the workbench 3 to move upward, and the top mold 5 is lifted to the tunnel top side mold position, and the closing hydraulic cylinder 203 is extended to push the side mold 4 to expand outward under the support of the rotating seat 10, and the joint between the side mold 4 and the top mold 5 is abutted and closed, and the end face of the trolley is closed by the end mold, so that the top mold 5 and the side mold 4 cooperate to form a grouting mold for the inner wall of the tunnel;

[0054] b. After the mold is positioned, the side mold 4 and the top mold 5 cooperate with the inner wall of the tunnel to form a mold cavity. The driving motor 303 drives the driving wheel 305 to rotate, and the driving wheel 305 drives the synchronous belt 7 to support the grouting assembly 6 to extend into the mold cavity as a whole. At this time, the synchronous belt 7 supports the synchronous pipe 601 and the corrugated pipe 602 to extend downward into the outer side of the side mold 4, so that the concrete is injected into the mold cavity from bottom to top by using the guide pipe 8. At the same time, the synchronous belt 7 supports the grouting assembly 6 to move upward, and the stirring rod 605 extending out of the corrugated pipe 602 is used to realize synchronous vibration grouting;

[0055] c. When the concrete fills the mold cavity at the outer position of the side mold 4, the synchronous belt 7 pulls the grouting assembly 6 into the limiting hole 501 of the top mold 5. At this time, the fixed pipe extends between the two sets of support plates 308, and the pipe edge 602a of the corrugated pipe 602 abuts against the inner wall of the limiting hole 501. The stirring rod 605 is still in the position of extending out of the pipe edge 602a, and then the concrete continues to be discharged outward along the corrugated pipe 602, and the concrete is vibrated and compacted by the vertically extending stirring rod 605;

[0056] d. When the mold cavity on the top side of the top mold 5 is also filled with concrete, the driving motor 303 rotates to drive the driving wheel 305 to support the synchronous belt 7 to continue to pull the fixing plate 701 downward, so that the fixing plate 701 drives the synchronous pipe 601 to continue to move downward. At this time, the pipe edge 602a is blocked by the limiting hole 501, and the synchronous pipe 601 continues to pull down the bottom end of the corrugated pipe 602, so that the corrugated pipe 602 is stretched by the synchronous pipe 601. At the same time, the rotating frame 604 is pulled by the synchronous pipe 601 to drive the stirring rod 605 to move downward until the plug cover 606 at the top end of the stirring rod 605 moves down to abut against the inner side of the pipe edge 602a at the top end of the corrugated pipe 602, and the plug cover 606 is used to close the top end of the corrugated pipe 602, so as to realize the separation action of the grouting component 6 and the concrete in the mold cavity, and end the grouting process;

[0057] e. When the concrete in the mold cavity is dry, the lifting hydraulic cylinder 103 and the closing hydraulic cylinder 203 are contracted synchronously to move the top mold 5 downward, and the side molds 4 are closed inward, so as to quickly realize the demoulding action, separate the entire trolley from the inner wall of the tunnel, and apply the release agent on the outer side of the top mold 5 and the side mold 4, so as to continue to move to the next section construction position along the length direction of the tunnel;

[0058] By providing a grouting assembly 6 that can extend out of the top mold 5, the grouting assembly 6 is supported by a synchronous belt 7 that can move along the top mold 5 and the side mold 4 to extend into the grouting mold cavity, so that it can move upward along the outer side of the side mold 4 to the top side of the top mold 5, thereby realizing automatic grouting layer by layer and improving construction efficiency;

[0059] There is no need to open an operating window on the template surface, which improves the integrity of the template and improves the inconvenience of grouting between the template and the tunnel wall through the operating window in the prior art. It can ensure the flatness of the concrete surface and facilitate demoulding. At the same time, there is no need to manually insert the grouting pipe into the operating window for grouting and insert the vibrating rod along the operating window to vibrate the concrete, which reduces the amount of manual labor and improves the operation speed.

[0060] A stirring rod 605 extending out of the end of the bellows 602 is built into the synchronous pipe 601, which automatically completes the vibration and compaction operation during grouting, thereby improving the uniformity of concrete filling and the quality of the tunnel inner wall lining;

[0061] In addition, after the grouting assembly 6 moves to the top side of the top mold 5, it can be retracted into the middle part of the top mold 5, thereby ensuring that the mold cavity above the top mold 5 can be evenly grouted, and the top area can be vibrated by the stirring rod 605 extending out of the corrugated pipe 602, thereby solving the problem that the top working window of the existing lining trolley cannot fill the concrete densely and is difficult to vibrate. At the same time, the plug cover 606 at the top end of the stirring rod 605 can be used to seal the top pipe edge 602a of the corrugated pipe 602, thereby ensuring the flatness of the tunnel lining concrete molding and improving the operational convenience of the capping process.

[0062] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A lining trolley, comprising a workbench (3) and two sets of side frames (2), wherein the two sets of side frames (2) are tilted and fixed on both sides of the bottom of the workbench (3), and the bottom sides of the two sets of side frames (2) are fixed with a bottom frame (1), and the top side of the workbench (3) is fixed with a top mold (5), characterized in that: Side molds (4) supported on the outside of the side frame (2) are hingedly connected to the outer sides of the top mold (5); grouting components (6) are arranged at the four corners of the top mold (5); synchronous belts (7) supporting the grouting components (6) are rotatably arranged on the outer edges of the side molds (4) and the top mold (5); and guide grooves (11) for accommodating the movement of the synchronous belts (7) are arranged on the outer sides of the side molds (4) and the top mold (5); The top mold (5) has four corners vertically penetrated with limiting holes (501) for accommodating the grouting assembly (6); the grouting assembly (6) includes a synchronous tube (601) extending downward through the grouting hole; a fixing plate (701) connected to the synchronous tube (601) is fixed on the outside of the synchronous belt (7); the top of the synchronous tube (601) is connected to a bellows (602); the top of the bellows (602) is fixed with a pipe edge (602a) abutting against the inside of the limiting hole (501); a guide tube (8) is arranged below the synchronous tube (601); a pipe joint (603) connected to the guide tube (8) is arranged at the bottom end of the synchronous tube (601); a rotating frame (604) is arranged inside the synchronous tube (601); a stirring rod (605) extending out of the bellows (602) is arranged on the top side of the rotating frame (604); The outer circumference of the rotating frame (604) is vertically penetrated by a slurry hole (604a); the limiting hole (501) is a trumpet-shaped structure with the top opening expanding outward; and a plug cover (606) capable of closing the top pipe edge (602a) of the bellows (602) is fixed to the top side of the stirring rod (605).

2. A lining trolley according to claim 1, characterized in that: The workbench (3) is a rectangular frame structure, and a support plate (301) is transversely fixed to the front and rear parts of the inner side of the workbench (3), and a fixing plate (302) is vertically extended from the support plate (301) and the four corners of the top side of the workbench (3), and a longitudinally extending driving shaft (304) is rotatably matched in the middle of the fixing plate (302), and a driving motor (303) supporting the driving shaft (304) to rotate is arranged on the outer side of the fixing plate (302), and a driving wheel (305) supporting the rotation of the synchronous belt (7) is coaxially fixed to the outer side of the driving shaft (304).

3. A lining trolley according to claim 2, characterized in that: A limiting ring (307) for accommodating the synchronous tube (601) is arranged above the workbench (3), a connecting ear (306) for supporting the limiting ring (307) is fixed on the inner side of the workbench (3), and a supporting plate (308) vertically connected to the bottom side of the top mold (5) is fixed to the front and rear parts of the top side of the limiting ring (307), and two groups of the supporting plates (308) are symmetrically arranged on the front and rear sides of the limiting hole (501).

4. A lining trolley according to claim 3, characterized in that: A retaining frame (9) for tightening the synchronous belt (7) is arranged on the inner side of the side mold (4); the top side of the guide groove (11) is connected to the limiting hole (501); and the bottom side of the guide groove (11) on the bottom side of the side mold (4) is an arc-shaped fillet; the retaining frame (9) comprises a sliding frame (901) extending radially along the side mold (4); the sliding frame (901) is a rectangular frame structure; an auxiliary frame (903) is slidably arranged inside the sliding frame (901) along its length direction; a pulley for tightening the synchronous belt (7) is rotatably arranged in the middle of the auxiliary frame (903); a sliding rod (902) passing through the sliding frame (901) is fixed on the other side of the auxiliary frame (903); a retaining ring (906) is fixed on the outer end of the sliding rod (902); and a spring (905) is sleeved on the outer side of the sliding rod (902) between the auxiliary frame (903) and the sliding frame (901).

5. A lining trolley according to claim 4, characterized in that: The top mold (5) and the side mold (4) are hingedly connected via a rotating seat (10); the rotating seat (10) comprises a fixed ear (10a) and a movable ear (10b) that are hingedly connected to each other; the fixed ear (10a) is welded and fixed to the bottom corner of the top mold (5); and the movable ear (10b) is welded and fixed to the inner side of the top edge of the side mold (4).

6. A lining trolley according to claim 5, characterized in that: The base frame (1) comprises a longitudinally extending ground beam (101) and a lifting beam (102); the lifting beam (102) is arranged above the ground beam (101); a lifting hydraulic cylinder (103) supporting the lifting beam (102) is fixed to the top side of the ground beam (101); wheel frames (104) are hingedly connected to the front and rear parts of the bottom side of the ground beam (101); and two sets of track wheels (105) are arranged at the bottom of the wheel frame (104) for parallel rotation in the front and rear directions.

7. A lining trolley according to claim 6, characterized in that: The side frame (2) comprises two parallel distributed diagonal braces (201), both ends of the diagonal braces (201) are fixed with mounting plates (201a), and the diagonal braces (201) are respectively fixedly connected to the workbench (3) and the lifting beam (102) via the mounting plates (201a).

8. A lining trolley according to claim 7, characterized in that: A support ear (202) is fixed on the outside of the diagonal support (201), and a closing hydraulic cylinder (203) is hinged on the outside of the support ear (202). The outer telescopic end of the closing hydraulic cylinder (203) is hinged on the inner side of the side mold (4), and a pull rod (204) is longitudinally connected between the fixed ends of the two groups of closing hydraulic cylinders (203).

9. A method for using a lining trolley, applicable to the lining trolley according to claim 8, characterized in that: The following steps are involved: a. When lining grouting is performed on the inner wall of a tunnel, the track wheel (105) of the bottom frame (1) supports the whole device to move along the tunnel track to the construction position, and then the lifting hydraulic cylinder supports the side frame (2) and the workbench (3) to move upward, and the top mold (5) is lifted to the position of the tunnel top side mold, and the closing hydraulic cylinder (203) is extended to push the side mold (4) to expand outward under the support of the rotating seat (10), so that the joint between the side mold (4) and the top mold (5) is abutted and sealed, and the end face of the trolley is sealed by the end mold, so that the top mold (5) and the side mold (4) are used to form a grouting mold for the inner wall of the tunnel; b. After the mold is positioned, the side mold (4) and the top mold (5) cooperate with the inner wall of the tunnel to form a mold cavity. The driving motor (303) drives the driving wheel (305) to rotate, and the driving wheel (305) drives the synchronous belt (7) to support the grouting assembly (6) to extend into the mold cavity as a whole. At this time, the synchronous belt (7) supports the synchronous pipe (601) and the corrugated pipe (602) to extend downward into the outer side of the side mold (4), so that the guide pipe (8) is used to inject concrete into the mold cavity from bottom to top. At the same time, the synchronous belt (7) supports the grouting assembly (6) to move upward, and the stirring rod (605) extending out of the corrugated pipe (602) is used to realize synchronous vibration grouting; c. When the concrete fills the mold cavity at the outer position of the side mold (4), the synchronous belt (7) pulls the grouting assembly (6) into the limiting hole (501) of the top mold (5). At this time, the fixed pipe extends between the two sets of support plates (308), the pipe edge (602a) of the corrugated pipe (602) abuts against the inner wall of the limiting hole (501), and the stirring rod (605) is still in the position of extending out of the pipe edge (602a). Then, the concrete continues to be discharged outward along the corrugated pipe (602), and the concrete is vibrated and compacted by the vertically extending stirring rod (605); d. When the mold cavity on the top side of the top mold (5) is also filled with concrete, the driving motor (303) is driven to rotate the driving wheel (305) to support the synchronous belt (7) to continue to pull the fixing plate (701) downward, so that the fixing plate (701) drives the synchronous pipe (601) to continue to move downward. At this time, the pipe edge (602a) is blocked by the limiting hole (501), and the synchronous pipe (601) continues to pull down the bottom end of the corrugated pipe (602), so that the synchronous pipe (601) ) pulls the bellows (602) to extend, and at the same time pulls the rotating frame (604) through the synchronous tube (601) and drives the stirring rod (605) to move downward, until the plug cover (606) at the top end of the stirring rod (605) moves downward to abut against the inner side of the top pipe edge (602a) of the bellows (602), and the plug cover (606) is used to close the top end of the bellows (602), thereby realizing the separation of the grouting component (6) and the concrete in the mold cavity, and ending the grouting process; e. When the concrete in the mold cavity is dry, the lifting hydraulic cylinder (103) and the closing hydraulic cylinder (203) are contracted synchronously to move the top mold (5) downwards, and at the same time the side molds (4) are closed inwards, thereby quickly achieving demoulding, separating the entire trolley from the inner wall of the tunnel, and applying a mold release agent to the outer sides of the top mold (5) and the side mold (4), so as to continue to move along the length direction of the tunnel to the next section construction position.

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