A trolley formwork system for pipe construction and a method of construction thereof

Abstract

The application relates to the technical field of building construction, and specifically discloses a trolley formwork system for pipeline construction, which comprises a trolley frame body, a formwork device and an adjusting device; the formwork device comprises a side formwork mechanism, a top formwork mechanism and a corner formwork mechanism; and the adjusting device comprises a horizontal driving mechanism and a vertical driving mechanism. The application also discloses a pipeline construction method, which comprises the following steps: step 1, pouring a pipeline bottom plate and a pipeline wall foundation; step 2, fixing the trolley frame body; step 3, supporting a pipeline top plate and a pipeline side wall; step 4, binding and installing pipeline top plate and pipeline side wall reinforcing steel bars; step 5, fixing the positions of a side wall outer formwork and a side wall inner formwork by using a tensioning piece; step 6, pouring and curing concrete in layers; step 7, demoulding; step 8, driving and moving the bottom walking device to the next construction section; and repeating the construction steps 2-8 until the pipeline construction is completed. The application improves the formwork supporting speed, shortens the construction period, reduces the labor cost and improves the construction safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a trolley formwork system for pipeline construction and a construction method thereof. BACKGROUND

[0002] Underground passageways, comprehensive pipe galleries and box culverts and the like structures are generally composed of one or more square or rectangular cross sections and are generally made of reinforced concrete.

[0003] The common construction process is as follows: first, a cushion layer is arranged in the excavated trench or narrow foundation pit, then a small part of the bottom plate and side wall is poured, and then the upper part of the side wall and the top plate are bound with steel bars, the inner and outer forms are supported, and the upper half of the side wall and the top plate are poured with concrete. After the concrete reaches the required strength, the formwork is removed, and the soil on both sides is backfilled at the same time.

[0004] In the above construction process, the support frame and formwork erection operation are completed by manual operation, which consumes a large amount of labor cost and time cost, and the erection of the support formwork also has certain construction safety and quality risks. SUMMARY

[0005] The purpose of the present application is to provide a trolley formwork system for pipeline construction and a construction method thereof, which solves the problems of long construction period, high cost and high risk in the existing pipeline formwork.

[0006] In a first aspect, the present application provides a trolley formwork system for pipeline construction, which adopts the following technical solution:

[0007] A trolley formwork system for pipeline construction, comprising a trolley frame body, a formwork device and an adjusting device;

[0008] The formwork device comprises a side form mechanism, a top form mechanism and a corner form mechanism;

[0009] The adjusting device comprises a horizontal driving mechanism and a vertical driving mechanism;

[0010] The side form mechanism is connected to the two sides of the pipeline side wall of the trolley frame body through the horizontal driving mechanism, the top form mechanism is connected to the top of the trolley frame body through the vertical driving mechanism, the horizontal driving mechanism is used to drive the side form mechanism to move horizontally to realize the formwork support of the pipeline side wall, the vertical driving mechanism is used to drive the top form mechanism to move vertically to realize the formwork support of the pipeline top plate, and the corner form mechanism is connected with the vertical driving mechanism and cooperates with the side form mechanism and the top form mechanism to realize the formwork support of the corners of the connection between the pipeline side wall and the top plate.

[0011] By adopting the technical scheme, when the formwork is erected, the vertical driving mechanism is used to drive the top formwork mechanism to ascend to a preset position on the pipeline bottom plate and the pipeline wall foundation which have been constructed, then the corner formwork mechanism starts to act and cooperates with the top formwork mechanism to realize the formwork erection of the pipeline top plate and the corners, and then the horizontal driving mechanism is used to drive the side formwork mechanism to move to a preset position to realize the formwork erection of the pipeline side wall. By adopting the trolley formwork system, the formwork erection speed can be effectively improved, the construction period is greatly shortened, the labor cost is reduced, and the safety in the construction process is improved.

[0012] Optionally, the trolley frame further comprises a bottom walking device and a vertical adjusting mechanism, the vertical adjusting mechanism is installed at the bottom of the trolley frame and is used to adjust the position of the trolley frame in the vertical direction, and the bottom walking device is used to support and drive the trolley frame to move along the pipeline laying direction.

[0013] By adopting the technical scheme, the cooperation of the bottom walking device and the vertical adjusting mechanism can realize the automatic movement of the trolley frame between adjacent construction sections, the automation degree is higher, and the construction efficiency is further improved.

[0014] Optionally, the two sides of the trolley frame close to the pipeline side wall are provided with lateral limiting mechanisms, the lateral limiting mechanism comprises a spring rod and a limiting roller, one end of the spring rod is fixedly installed on the side wall of the trolley frame, the other end is arranged towards the pipeline side wall, and the limiting roller is rotatably installed at the end of the spring rod away from the trolley frame, and the rotating shaft of the limiting roller is located in the vertical direction.

[0015] By adopting the technical scheme, the limiting roller can continuously abut on the pipeline wall foundation under the action of the spring rod, and the limiting roller can guide and limit the trolley frame when the bottom walking device drives the trolley frame to move.

[0016] Optionally, the two sides of the trolley frame close to the pipeline side wall are provided with precise positioning devices, the precise positioning device comprises a horizontal telescopic piece and a limiting end plate, the horizontal telescopic piece is installed on the side wall of the trolley frame, the telescopic end of the horizontal telescopic piece is arranged towards the pipeline side wall, the limiting end plate is installed at the telescopic end of the horizontal telescopic piece, and the horizontal telescopic piece drives the limiting end plate to move horizontally towards or away from the pipeline side wall.

[0017] By adopting the technical scheme, when the trolley frame moves to a preset position, then the telescopic end of the horizontal telescopic piece is extended, and the limiting end plate abuts on the pipeline wall foundation, the distance between the trolley frame and the pipeline wall foundation is adjusted by the horizontal telescopic piece to realize the precise positioning of the trolley frame.

[0018] Optionally, the side mold mechanism comprises a side wall inner mold, a side wall outer mold and a tensioning member, the side wall inner mold is connected with the horizontal driving mechanism, the side wall outer mold is arranged on the side of the side wall inner mold away from the horizontal driving mechanism, a cavity for pouring concrete is formed between the side wall inner mold and the side wall outer mold, and the side wall inner mold and the side wall outer mold are connected through the tensioning member.

[0019] By adopting the technical scheme, when the side wall of the pipeline is supported, the horizontal driving mechanism drives the side wall inner mold to move away from the trolley frame body, and stops moving when the side wall inner mold moves to the preset position; then the side wall outer mold is hoisted to the support which is completed in advance, and then the position of the inner mold and the outer mold is fixed by using the tensioning member, so that the support of the upper part of the side wall of the pipeline is completed, and the automation degree is high and the construction is convenient.

[0020] Optionally, the side of the side wall inner mold away from the side wall outer mold is provided with a sliding rod, the side wall of the trolley frame body is provided with a sliding seat in sliding cooperation with the sliding rod, the sliding seat comprises a first seat body and a second seat body, one end of the sliding rod away from the side wall inner mold passes through the first seat body first and then passes through the second seat body, a roller is rotatably installed at the bottom of the inner side of the first seat body, a roller is also rotatably installed at the top of the inner side of the second seat body, the bottom of the sliding rod abuts against the roller at the bottom of the first seat body, and the top of the sliding rod abuts against the roller at the top of the second seat body.

[0021] By adopting the technical scheme, due to the self-weight of the side mold mechanism, the end of the sliding rod connected with the side wall inner mold tends to move downward, and this tendency causes the end of the sliding rod away from the side wall inner mold to abut against the roller at the top of the second seat body tightly, and the end of the sliding rod close to the side wall inner mold abuts against the roller at the bottom of the first seat body tightly. Under the action of the pulleys on the first seat body and the second seat body, on the one hand, the normal movement of the side wall inner mold in the horizontal direction is ensured, and on the other hand, the tendency of the side wall inner mold to fall downward is resisted, so that the stability of the side wall inner mold in the movement process is improved.

[0022] Optionally, the top mold mechanism comprises a top mold plate, a first truss and a second truss, the top mold plate is arranged on the top of the trolley frame body, the first truss is fixedly installed at the bottom of the top mold plate, the second truss is connected with the vertical driving mechanism, and the second truss is fixedly connected with the first truss.

[0023] By adopting the technical scheme, the vertical driving mechanism can drive the top mold plate to rise or fall, so that the automation degree is higher and the construction is more convenient.

[0024] Optionally, the corner die mechanism comprises a side corner die plate and a corner die adjusting piece, the side corner die plate is installed on the output end of the corner die adjusting piece, and the corner die adjusting piece is used to adjust the distance between the side corner die plate and the trolley frame body.

[0025] The side corner die plate comprises a horizontal side die plate, a vertical side die plate and a chamfered side die plate, the horizontal side die plate and the vertical side die plate are connected on the two sides of the chamfered side die plate respectively, and the horizontal side die plate and the vertical side die plate are perpendicular to each other, the horizontal side die plate is used to be connected with the top die plate and make the top of the two on the same horizontal plane, one end of the corner die adjusting piece is hinged with the end of the second gantry, and the other end is hinged with the chamfered side die plate.

[0026] By adopting the above technical scheme, in specific use, first, the position of the chamfered side die plate is adjusted by the corner die adjusting piece, when the horizontal side die plate and the top die plate are on the same horizontal plane, the two are connected, so that the horizontal side die plate and the top die plate are kept in the horizontal state at the same time, so as to conveniently support the die for the pipe top plate and the side corner.

[0027] Optionally, the side walls of the horizontal side die plate and the top die plate are respectively provided with ear plates matched with each other, the ear plates are used to pass through bolts to connect and fix the horizontal side die plate and the top die plate.

[0028] By adopting the above technical scheme, by setting the ear plates, the horizontal side die plate and the top die plate can be fixed, so that the forming effect at the pipe top plate and the side corner is better.

[0029] In the second aspect, the pipe construction method provided by the present application adopts the following technical scheme:

[0030] A pipe construction method adopts the trolley die plate system for pipe construction, and comprises the following steps:

[0031] Step 1: pouring the pipe bottom plate and the pipe wall foundation;

[0032] Step 2: the trolley frame body is driven by the bottom walking device to move to the preset position, then the trolley die plate is adjusted in the horizontal direction by the precise positioning device, then the trolley frame body is separated from the bottom walking device by the action of the frame vertical adjusting mechanism, and then the trolley frame body is adjusted in the vertical direction by the frame vertical adjusting mechanism;

[0033] Step 3: supporting the die for the pipe top plate and the side wall, first, the top die plate is driven by the vertical driving mechanism to move upward to the preset position, and the die for the pipe top plate is supported; the horizontal side die plate in the side corner die plate is driven by the corner die adjusting piece to move to the same horizontal plane with the top die plate, then the horizontal side die plate and the top die plate are fixed; the side wall inner die is driven by the horizontal driving mechanism to move to the preset position away from the trolley frame body, and then the side wall outer die is hoisted to the temporary support or the embedded part on the pipe wall foundation;

[0034] Step 4: pipe roof and side wall steel reinforcement binding and installation;

[0035] Step 5: adjust the distance between the side wall outer mold and the side wall inner mold, and fix the position of the two by using the tensioning member;

[0036] Step 6: concrete layer pouring and curing;

[0037] Step 7: demolding, first remove the side wall outer mold, then the side wall inner mold is retracted under the drive of the horizontal drive mechanism, completing the demolding of the pipe side wall; then contact the top mold plate with the horizontal edge mold, and then move the corner mold plate towards the direction of the trolley frame body under the drive of the vertical drive mechanism, and start to descend the top mold plate, completing the demolding of the pipe roof;

[0038] Step 8: the bottom walking device moves to the position below the trolley frame body, then the trolley frame body is lowered under the drive of the frame vertical adjustment mechanism, and falls above the bottom walking device, then is driven and moved to the next construction section by the bottom walking device;

[0039] Repeat the construction steps 2-8 to continue the construction of the subsequent construction section until the pipe is completely constructed.

[0040] By adopting the above technical scheme, first, a part of the pipe bottom plate and side wall is poured, then the trolley frame body is driven into the field by the bottom walking device, after the trolley frame body is positioned, the position of the trolley frame body is finely adjusted, and then the pipe roof and the side wall part above the pipe wall foundation are supported and molded, the steel mesh is bound during the process of supporting and molding, then the concrete pouring and curing are started, after the curing of the concrete is completed, the mold is removed, the side wall mold is removed first, then the corner mold is removed, and finally the pipe roof is removed; after the demolding is completed, the trolley frame body is moved to the next construction section by using the walking device, and the construction is repeated until the pipe construction is completed. This kind of construction method is simple and fast, can save a lot of labor cost, improves the construction efficiency, and improves the safety during construction.

[0041] In summary, the present application includes at least one of the following beneficial technical effects:

[0042] 1. When the formwork is supported, firstly, the vertical driving mechanism is used to drive the top formwork mechanism to rise to the preset position on the pipeline bottom plate and the pipeline wall foundation which have been constructed, then the corner formwork mechanism starts to act and cooperates with the top formwork mechanism to realize the formwork support of the pipeline top plate and the corner, then the horizontal driving mechanism is used to drive the side formwork mechanism to move to the preset position to realize the formwork support of the pipeline side wall. By adopting the trolley formwork system, the formwork speed can be effectively improved, the construction period is greatly shortened, the labor cost is reduced, and the safety in the construction process is improved.

[0043] 2. When the pipeline side wall is supported, the horizontal driving mechanism drives the side wall inner formwork to move away from the trolley frame body, and when the side wall inner formwork moves to the preset position, the horizontal driving mechanism stops moving; then the side wall outer formwork is hoisted to the support which has been constructed in advance, then the position of the inner formwork and the outer formwork is fixed by the tensioning piece to complete the formwork support of the upper part of the pipeline side wall, which is high in automation degree and convenient in construction.

[0044] 3. The cooperation of the bottom walking device and the vertical adjusting mechanism can realize the automatic movement of the trolley frame body in the adjacent construction section, which is higher in automation degree and further improves the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is the overall structure schematic diagram of the embodiment of the application;

[0046] Figure 2 is the front view of the embodiment of the application;

[0047] In the drawings, 01 is a pipeline bottom plate, 02 is a pipeline wall foundation, 1 is a trolley frame body, 11 is a stand column, 12 is a cross beam, 13 is a diagonal pull rod, 14 is a table board, 2 is a formwork device, 21 is a side formwork mechanism, 211 is a side wall inner formwork, 212 is a side wall outer formwork, 213 is a tensioning piece, 214 is a side formwork connecting frame, 2141 is a horizontal keel, 2142 is a vertical keel, 22 is a top formwork mechanism, 221 is a top formwork plate, 222 is a first truss, 223 is a second truss, 23 is a corner formwork mechanism, 231 is a corner formwork plate, 2311 is a horizontal side formwork, 2312 is a vertical side formwork, 2313 is a chamfered side formwork, 232 is a corner formwork adjusting piece, 3 is an adjusting device, 31 is a horizontal driving mechanism, 32 is a vertical driving mechanism, 4 is a bottom walking device, 5 is a sliding rod, 6 is a sliding seat, 61 is a first seat body, 62 is a second seat body, 7 is a frame body vertical adjusting mechanism, 8 is a lateral limiting mechanism, 81 is a spring rod, 82 is a limiting roller, 9 is a precise positioning device, 91 is a horizontal telescopic piece, 92 is a limiting end plate, 10 is a transverse guide mechanism, 101 is a connecting rod, and 102 is a guide wheel. DETAILED DESCRIPTION

[0048] The above describes the embodiment of the application with reference to the drawings. Figure 1 - the drawingsFigure 2 This application will be described in further detail below.

[0049] This application discloses a trolley formwork system for pipeline construction, mainly applied in pipeline construction processes such as underground connecting passages, integrated pipe corridors, and box culverts, where the pipeline consists of one or more square or rectangular cross-sections. Specifically, the application environment is where the pipeline base slab 01 and a portion of the bottom sidewall have been poured and demolding has been completed. The system primarily provides formwork support for the portion above the bottom of the pipeline sidewall and the pipeline top slab during pouring. For ease of description and understanding, in this embodiment, a portion of the completed pipeline sidewall bottom is designated as the pipe wall foundation 02, and the pipeline adopts a pipe structure with a rectangular cross-section. It should be understood that this limitation is merely for ease of description and understanding and is not a limitation of this application.

[0050] A trolley formwork system for pipeline construction, referenced Figure 1 and Figure 2 The system includes a trolley frame 1, a template device 2, an adjustment device 3, and a bottom traveling device 4. The trolley frame 1 serves as the foundation of the trolley template system and is used for the assembly and installation of various mechanism modules. The bottom traveling device 4 is located below the trolley frame 1 and is used to support and drive the trolley frame 1 to move along the construction path of the pipeline. The template device 2 is connected to the top and sides of the trolley frame 1 through the adjustment device 3 to realize the formwork support for the top plate and upper part of the pipe wall.

[0051] Specifically, the trolley frame 1 includes multiple uprights 11 and crossbeams 12. The uprights 11 are vertically arranged, and the crossbeams 12 are horizontally fixedly connected between adjacent uprights 11, so that the trolley frame 1 as a whole presents a rectangular, cubic, or similar rectangular or cubic frame structure. The specific dimensional parameters and the assembled structure can be adapted to the design dimensions and shape of the pipeline. In this embodiment, both the uprights 11 and the crossbeams 12 are made of hollow square steel pipes. There are four uprights 11, and the crossbeams 12 are divided into two layers, one layer located at the top part of the uprights 11 and the other layer located at the bottom part of the uprights 11. The two ends of each crossbeam 12 in each layer are welded to the side walls of two adjacent uprights 11 that are close to each other to form a stable frame structure.

[0052] Furthermore, the trolley frame 1 also includes diagonal braces 13 and a platform 14. The diagonal braces 13 connect two adjacent uprights 11 and simultaneously connect to two opposing crossbeams 12 in the two layers. Preferably, the connection between the diagonal braces 13 and the uprights 11 and crossbeams 12 is welding. The platform 14 is placed horizontally and vertically connected to multiple uprights 11, and the connection method can be welding or bolting. The purpose of the diagonal braces 13 is to increase the overall structural stability of the trolley frame 1, while the platform 14 is used to place some construction tools.

[0053] Specifically, the template device 2 comprises a side mold mechanism 21, a top mold mechanism 22 and a corner mold mechanism 23. The side mold mechanism 21 is connected to both sides of the trolley frame body 1 through the adjusting device 3, and is used to support the mold above the pipe wall base 02, so as to facilitate the pouring of the remaining part of the pipe side wall. The top mold mechanism 22 is located above the trolley frame body 1 and is also connected to the trolley frame body 1 through the adjusting device 3, and is used to support the mold of the pipe top plate, so as to facilitate the pouring of the pipe top plate. The corner mold mechanism 23 is located at the corner between the pipe top plate and the pipe side wall, and is used to cooperate with the side mold mechanism 21 and the top mold mechanism 22 to support the corner between the pipe top plate and the pipe side wall. Before pouring, the side mold mechanism 21, the top mold mechanism 22 and the corner mold mechanism 23 need to be adjusted to the appropriate position. The channels formed by the three mold mechanisms are connected, which facilitates simultaneous pouring and maintenance, thereby improving the construction efficiency.

[0054] The side mold mechanism 21 comprises a side wall inner mold 211, a side wall outer mold 212 and a tensioning member 213. The side wall inner mold 211 is connected to the side wall of the trolley frame body 1 through the adjusting device 3. The side wall outer mold 212 is located on the side of the side wall inner mold 211 away from the trolley frame body 1, and the side wall outer mold 212 and the side wall inner mold 211 are connected through the tensioning member 213. After the side wall outer mold 212 and the side wall inner mold 211 are connected, a channel for pouring concrete is formed between the side wall outer mold 212 and the side wall inner mold 211. After the side wall is maintained, the tensioning member 213 is removed or cut off from the side of the side wall outer mold 212, and then the side wall outer mold 212 is removed. At the same time, the side wall inner mold 211 moves towards the trolley frame body 1 through the adjusting device 3, and is separated from the poured side wall, thereby completing the demolding action. In this embodiment, the tensioning member 213 is a screw rod.

[0055] Further, the side mold mechanism 21 further comprises a side mold connecting frame 214 located on the side of the side wall inner mold 211 close to the trolley frame body 1. The side mold connecting frame 214 is used to be connected with the adjusting device 3, so as to drive the side wall inner mold 211 to move horizontally together with the adjusting device 3. Specifically, the side mold connecting frame 214 comprises a horizontal keel 2141 fixed on one side of the side wall inner mold 211 and a vertical keel 2142 arranged on the side of the horizontal keel 2141 away from the side wall inner mold 211. The vertical keel 2142 is used to be connected with the adjusting device 3. Preferably, the horizontal keel 2141 and the vertical keel 2142 can be fixed on the side wall inner mold 211 by welding or bolt connection.

[0056] Specifically, the adjusting device 3 comprises horizontal driving mechanisms 31 arranged on both sides of the trolley frame body 1, and the horizontal driving mechanisms 31 are composed of a plurality of horizontal driving members. In this embodiment, the horizontal driving members are selected as screw jacks, and the screw jacks are driven by servo motors, so that the screw jacks can be automatically moved according to programs or remote control. In other embodiments, the horizontal driving members can also be selected as electric telescopic rods and other driving members capable of realizing single-direction reciprocating motion. The output ends of the horizontal driving members are fastened to the vertical keels 2142 by bolts. That is, with the action of the horizontal driving members, the vertical keels 2142 will move towards the direction of approaching or moving away from the trolley frame body 1 along with the output ends of the horizontal driving members.

[0057] During the formwork erection before the concrete pouring, after the trolley frame body 1 is moved to the predetermined position under the driving of the bottom walking device 4, the horizontal driving mechanisms 31 drive the side wall inner formwork 211 to move away from the trolley frame body 1. When the side wall inner formwork 211 is moved to the preset position, the horizontal driving mechanisms 31 stop moving. Then, the side wall outer formwork 212 is hoisted to the support which is previously constructed, and the position of the side wall outer formwork 212 is finely adjusted to ensure the distance between the side wall outer formwork 212 and the side wall inner formwork 211. Then, the position of the inner formwork and the outer formwork is fixed by the tensioning member 213 to complete the formwork erection of the upper part of the pipeline side wall.

[0058] In order to improve the stability of the side wall inner formwork 211 during the horizontal movement, the side wall inner formwork 211 is provided with a sliding rod 5 on the side away from the side wall outer formwork 212, and the trolley frame body 1 is provided with a sliding seat 6 in sliding cooperation with the sliding rod 5. The sliding seat 6 comprises a first seat body 61 and a second seat body 62, and both the first seat body 61 and the second seat body 62 are in the shape of a cuboid shell. The sliding rod 5 slides in the first seat body 61 and the second seat body 62 during the movement of the side wall inner formwork 211.

[0059] Specifically, the second seat body 62 is located on the side of the first seat body 61 away from the side wall inner formwork 211, that is, one end of the sliding rod 5 away from the side wall inner formwork 211 first passes through the first seat body 61 and then passes through the second seat body 62. Meanwhile, a roller is rotatably installed on the bottom of the inner side of the first seat body 61, and a roller is also rotatably installed on the top of the inner side of the second seat body 62. When the sliding rod 5 passes through the first seat body 61, the bottom of the sliding rod 5 is in contact with the roller on the bottom of the first seat body 61. When the sliding rod 5 passes through the second seat body 62, the top of the sliding rod 5 is in contact with the roller on the top of the second seat body 62. The side of the sliding rod 5 close to the side wall inner formwork 211 is vertically fixedly connected with a connecting rod, and the connecting rod is vertically fixed on the horizontal keel 2141 of the side formwork connecting frame 214.

[0060] Due to the dead weight of the side wall inner mold 211, the end of the sliding rod 5 connected with the side wall inner mold 211 tends to move downward, which causes the end of the sliding rod 5 away from the side wall inner mold 211 to tightly abut against the roller on the top of the second seat body 62, and the end of the sliding rod 5 close to the side wall inner mold 211 to tightly abut against the roller on the bottom of the first seat body 61. Under the action of the pulleys on the first seat body 61 and the second seat body 62, on one hand, the side wall inner mold 211 can move normally in the horizontal direction, and on the other hand, the side wall inner mold 211 can resist the tendency of falling downward, so as to improve the stability during the movement.

[0061] Specifically, the top mold mechanism 22 comprises a top mold plate 221 and a plurality of first trusses 222 and second trusses 223, wherein the top mold plate 221 is horizontally placed and used for formwork of pouring the top plate of the pipeline, the first trusses 222 are fixed on the bottom of the top mold plate 221, and the fixing mode can adopt welding or bolt connection, the first trusses 222 are uniformly distributed on the bottom of the top mold plate 221 in a direction perpendicular to the side wall of the pipeline, and the second trusses 223 are installed on the top of the trolley frame body 1 through the adjusting device 3, and the second trusses 223 are connected with the first trusses 222, and the connection mode can adopt welding or bolt connection, and the second trusses 223 are perpendicular to the first trusses 222.

[0062] Further, the adjusting device 3 further comprises a vertical driving mechanism 32, in the embodiment, the vertical driving mechanism 32 is composed of a plurality of vertical driving members, preferably, the vertical driving member adopts a screw lifter, the screw lifter at the position can be driven by a hand wheel, the output end of the vertical driving member is flange-connected with the first truss 222, the vertical driving member drives the first truss 222 to ascend or descend in the vertical direction, so as to realize the height adjustment of the top mold plate 221 in the vertical direction.

[0063] Specifically, the corner mold mechanism 23 comprises a corner mold plate 231 and a corner mold adjusting member 232, the corner mold adjusting member 232 is installed on the end of the second truss 223 in the top mold mechanism 22, the output end of the corner mold adjusting member 232 is connected with the corner mold plate 231, so as to control the distance between the corner mold plate 231 and the end of the second truss 223. When the corner mold adjusting member 232 is installed, one end thereof is hinged with the end of the second truss 223, and the other end thereof is hinged with the corner mold plate 231. In the embodiment, the corner mold adjusting member 232 also selects a screw lifter, and the screw lifter at the position selects a servo motor for driving, so as to realize automatic movement according to a program or remote control.

[0064] Further, the corner die plate 231 comprises a horizontal edge die 2311, a vertical edge die 2312 and a chamfer die 2313, wherein the horizontal edge die 2311 and the vertical edge die 2312 are respectively located at two sides of the chamfer die 2313, and the horizontal edge die 2311 and the vertical edge die 2312 are perpendicular to each other. In specific use, the horizontal edge die 2311 is connected with the top die plate 221, so that the horizontal edge die 2311 and the top die plate 221 are kept in a horizontal state at the same time, and meanwhile, the vertical edge die 2312 is in the same vertical plane with the inner side wall die 211 in the side die mechanism 21, and the end of the vertical edge die 2312 away from the chamfer die 2313 abuts against the top of the inner side wall die 211. Preferably, the horizontal edge die 2311, the vertical edge die 2312 and the chamfer die 2313 are integrally formed, and the output end of the corner die adjusting member 232 is hinged to the inner side of the chamfer die 2313.

[0065] Further, the side wall of the top die plate 221 in the top die mechanism 22 and the horizontal edge die 2311 in the corner die plate 231 are respectively provided with an ear plate, and the ear plates provided on the two are connected by bolts. After the two ear plates are connected, the horizontal edge die 2311 is fixed with the top die plate 221 and is in the same horizontal plane.

[0066] In specific use, the top die plate 221 is first lifted to a preset position by the vertical driving mechanism 32, then the distance between the corner die plate 231 and the end of the second truss 223 is adjusted by the corner die adjusting member 232, so that the ear plate on the horizontal edge die 2311 is opposite to the ear plate on the top die plate 221, and then the bolts are threaded at the two ear plates to fix the corner die plate 231 with the top die plate 221.

[0067] Further, the bottom walking device 4 is an electric flat car. In order to realize that the electric flat car can automatically contact with the trolley frame body 1 and drive the trolley frame body 1 to move, the bottom of the trolley frame body 1 is further provided with a frame vertical adjusting mechanism 7, which is composed of a plurality of vertical adjusting members. Preferably, the vertical adjusting member is a screw rod lifter, which is installed at the bottom of each stand column 11, and the screw rod lifter at this position is driven by a servo motor, which can realize automatic lifting according to program or remote control. In order to facilitate the vertical adjusting member to drive the trolley frame body 1 to lift, a base can be installed at the driving end of the vertical adjusting member, which can increase the contact area with the ground, so that the trolley frame body 1 is more stable during lifting.

[0068] During the concrete pouring and curing process, the trolley frame 1 is always kept in a stationary state in the pipe under the support of the frame vertical adjusting mechanism 7; when the curing is completed and the formwork is removed, it is necessary to move the trolley frame 1 to the construction position of the next stage, at this time, the bottom walking device 4 is used to drive the trolley frame 1 to move, when the bottom walking device 4 moves to the position below the trolley frame 1, the frame vertical adjusting mechanism 7 starts to act and drives the trolley frame 1 to move downward until the trolley frame 1 abuts against the top of the bottom walking device 4, then the frame vertical adjusting mechanism 7 further contracts and is out of contact with the pipe bottom plate 01, and the bottom walking device 4 drives the trolley frame 1 to move to the next position. After the bottom walking device 4 moves to the preset position, the frame vertical adjusting mechanism 7 starts to extend and abuts against the pipe bottom plate 01, and as the frame vertical adjusting mechanism 7 further extends, the trolley frame 1 gradually comes out of contact with the bottom walking device 4; when the trolley frame 1 rises to the preset position, the frame vertical adjusting mechanism 7 stops acting, and then the bottom walking device 4 slides away from the bottom of the trolley frame 1.

[0069] In order to cooperate with the electric flat trolley to drive the trolley frame 1 to move, the two sides of the trolley frame 1 close to the pipe side wall are provided with lateral limiting mechanisms 8. Specifically, the lateral limiting mechanism 8 comprises a spring rod 81 and a limiting roller 82, the spring rod 81 is telescopic and elastic, one end of the spring rod 81 is fixedly installed on the bottom side wall of the center column 11 of the trolley frame 1, the other end is arranged towards the direction of the pipe side wall, and the limiting roller 82 is rotatably installed at the end of the spring rod 81 away from the trolley frame 1, and the rotating shaft of the limiting roller 82 is in the vertical direction. The limiting roller 82 can continuously abut against the pipe wall foundation 02 under the action of the spring rod 81, and when the bottom walking device 4 drives the trolley frame 1 to move, the limiting roller 82 cooperates with the spring rod 81 to play a guiding and limiting role.

[0070] Further, the two sides of the trolley frame 1 are also provided with precise positioning devices 9, which are used to further position the position of the trolley frame 1 in the pipe. Specifically, the precise positioning device 9 comprises a horizontal telescopic piece 91 and a limiting end plate 92, the horizontal telescopic piece 91 is installed on the side wall of the center column 11 of the trolley frame 1, and the telescopic end of the horizontal telescopic piece 91 is arranged towards the pipe side wall, and the limiting end plate 92 is installed on the telescopic end of the horizontal telescopic piece 91. Under the drive of the horizontal telescopic piece 91, the limiting end plate 92 can abut against the pipe wall foundation 02. Preferably, the horizontal telescopic piece 91 selects a screw rod lifter, and the screw rod lifter at this place is driven by a servo motor.

[0071] When the bottom walking device 4 drives the trolley frame 1 to move to the preset position, then the telescopic end of the horizontal telescopic piece 91 is extended, and the limiting end plate 92 is abutted to the pipe wall foundation 02, the distance between the trolley frame 1 and the pipe wall foundation 02 is adjusted through the horizontal telescopic piece 91, so that the accurate positioning of the trolley frame 1 is realized; after the positioning of the trolley frame 1 is completed, the frame vertical adjusting mechanism 7 lifts up the trolley frame 1, and then the bottom walking device 4 slides away from the bottom of the trolley frame 1, so that the positioning and fixing of the trolley frame 1 are realized.

[0072] In order to facilitate the adjustment of the accurate positioning device 9 to the position of the trolley frame 1, the horizontal guiding mechanism 10 is installed on the trolley frame 1. Specifically, the horizontal guiding mechanism 10 comprises a connecting rod 101 and a guiding wheel 102, the connecting rod 101 is fixed at the bottom of the cross beam 12 of the middle and lower layers of the trolley frame 1 and is vertically installed, and the guiding wheel 102 is rotatably installed at the end of the connecting rod 101 away from the cross beam 12, and the rotating shaft of the guiding wheel 102 is perpendicular to the pipe wall foundation 02, that is, the guiding wheel 102 can move along the direction perpendicular to the laying direction of the pipeline. During the adjustment of the position of the trolley frame 1 by the horizontal telescopic piece 91, the guiding wheel 102 moves above the bottom walking device 4, so as to facilitate the movement of the trolley frame 1.

[0073] The embodiment of the application further discloses a pipeline construction method, mainly comprising the following steps.

[0074] Step 1: foundation construction;

[0075] The cushion layer is arranged in the excavated trench or long and narrow foundation pit, and the pipeline bottom plate 01 and the pipe wall foundation 02 are first poured.

[0076] Step 2: trolley frame 1 fixing, comprising the following steps:

[0077] Step 21: trolley frame 1 horizontal adjustment, after the concrete of the pipeline bottom plate 01 and the concrete of the pipe wall foundation 02 reach a certain strength, the trolley frame 1 reaches the preset position under the driving of the bottom walking device 4 and under the limiting action of the lateral limiting mechanism 8, and then the position of the trolley formwork is accurately leveled through the cooperation of the accurate positioning device 9 and the horizontal guiding mechanism 10;

[0078] Step 22: trolley frame 1 is separated from the bottom walking device 4, after the position of the trolley formwork is accurately leveled, the frame vertical adjusting mechanism 7 starts to lift the trolley frame 1, so that the trolley frame 1 is separated from the bottom walking device 4, and then the bottom walking device 4 slides away from below the trolley frame 1;

[0079] Step 23: The trolley frame 1 is vertically adjusted, the position of the trolley frame 1 is further adjusted by using the frame vertical adjusting mechanism 7, the position of the trolley frame 1 in the vertical direction is accurately adjusted, after the adjustment is completed, the precise positioning device 9 is also tightly positioned on the pipe wall foundation 02, so that the trolley frame 1 can be accurately fixed in the horizontal direction and the vertical direction.

[0080] Step 3: The pipe top plate and side wall formwork are supported, including the following steps:

[0081] Step 31: The pipe top plate formwork is supported, the vertical driving mechanism 32 drives the top formwork 221 to move upwards, after moving to the preset position, the vertical driving mechanism 32 stops working, so that the top formwork 221 remains in a stationary state;

[0082] Step 32: The pipe corner formwork is supported, the corner formwork adjusting part 232 drives the corner formwork 231 to move, so that the horizontal edge formwork 2311 in the corner formwork 231 is in the same horizontal plane as the top formwork 221, then the ear plate penetrating the bolt is arranged on the top formwork 221 and the horizontal edge formwork 2311, so that the corner formwork 231 and the top formwork 221 are fixed and located in the same horizontal plane;

[0083] Step 33: The pipe side wall formwork is supported, including the following steps:

[0084] Step 331: The side wall inner formwork 211 is supported, the horizontal driving mechanism 31 drives the side wall inner formwork 211 to move away from the trolley frame 1, when the side wall inner formwork 211 moves to the preset position, the vertical edge formwork 2312 in the corner formwork 231 abuts against the end of the side wall inner formwork 211 and is located in the same vertical plane;

[0085] Step 332: The side wall outer formwork 212 is supported, after the position of the side wall inner formwork 211 is fixed, the side wall outer formwork 212 is hoisted, the temporary support can be arranged in advance at the position where the side wall outer formwork 212 is installed, or the embedded part can be arranged when the pipe wall foundation 02 is poured, after the side wall outer formwork 212 is hoisted, it is transported to the temporary support or the embedded part; The side wall outer formwork 212 can also use brick formwork or soil formwork to save the side wall outer formwork 212;

[0086] Step 4: The pipe top plate and side wall steel bars are bound and installed;

[0087] Step 5: Then the distance between the side wall outer formwork 212 and the side wall inner formwork 211 is adjusted, and the position of the two is fixed by using the tensioning part 213;

[0088] Step 6: The concrete is poured and maintained in layers;

[0089] Step 7: After the concrete reaches a certain strength, the formwork is removed, including the following steps:

[0090] Step 71: the pipe side wall is demolded, the tensioning member 213 connected between the inner side wall mold 211 and the outer side wall mold 212 is first released, the outer side wall mold 212 is removed, and the part of the tensioning member 213 protruding from the outer side of the pipe side wall is cut off; then the inner side wall mold 211 is retracted under the driving of the horizontal driving mechanism 31 and moves towards the direction close to the trolley frame body 1, and the part of the tensioning member 213 protruding from the inner side of the pipe side wall is cut off, thus completing the demolding of the pipe side wall;

[0091] Step 72: the pipe top plate and corner are demolded, the bolt connected between the top mold plate 221 and the horizontal edge mold 2311 is first released, then the corner mold adjusting member 232 drives the edge corner mold plate 231 to move towards the direction of the trolley frame body 1, so that the edge corner mold plate 231 is separated from the top mold plate 221, after the edge corner mold plate 231 is reset, the top mold plate 221 is lowered by the vertical driving mechanism 32, thus completing the demolding of the pipe top plate;

[0092] Step 8: after the demolding is completed, the bottom walking device 4 approaches and moves to the position below the trolley frame body 1, then the precise positioning device 9 is retracted and separated from the abutment with the pipe wall foundation 02, then the trolley frame body 1 is lowered by the trolley vertical adjusting mechanism 7 until the bottom of the trolley frame body 1 falls above the bottom walking device 4, then the trolley vertical adjusting mechanism 7 is further retracted until the trolley vertical adjusting mechanism 7 is separated from the pipe bottom plate 01, at this time, the trolley frame body 1 is supported by the bottom walking device 4 and is moved to the next construction section by the trolley frame body 1;

[0093] The construction steps 2-8 are repeated to continue the construction of the subsequent construction section until the pipe is completely constructed.

[0094] The implementation principle of the embodiment of the application is:

[0095] During the implementation of the pipe, first, the pipe bottom plate 01 and a part of the lower side wall are poured, then the trolley frame body 1 is driven by the bottom walking device 4 to approach, after the trolley frame body 1 is positioned, the position of the trolley frame body 1 is finely adjusted, the trolley frame body 1 is kept fixed relative to the pipe bottom plate 01 and the pipe wall foundation 02 after the position adjustment, then the pipe top plate and the part of the side wall above the pipe wall foundation 02 are supported and molded, the steel mesh is bound during the process of supporting and molding, then the concrete pouring and curing are started, after the concrete curing is completed, the demolding is performed, the pipe side wall mold is demolded first, then the edge corner mold plate 231 is demolded, and finally the pipe top plate is demolded; after the demolding is completed, the trolley frame body 1 is moved to the next construction section by the walking device, and the construction is repeatedly performed until the pipe construction is completed.

[0096] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A trolley formwork system for pipeline construction, characterized in that, It includes a trolley frame (1), a template device (2), and an adjustment device (3); The template device (2) includes a side mold mechanism (21), a top mold mechanism (22), and a corner mold mechanism (23); The adjustment device (3) includes a horizontal drive mechanism (31) and a vertical drive mechanism (32). The side mold mechanism (21) is connected to the trolley frame (1) on both sides of the pipe sidewall via a horizontal drive mechanism (31). The top mold mechanism (22) is connected to the top of the trolley frame (1) via a vertical drive mechanism (32). The horizontal drive mechanism (31) is used to drive the side mold mechanism (21) to move horizontally to achieve formwork support for the pipe sidewall. The vertical drive mechanism (32) is used to drive the top mold mechanism (22) to move vertically to achieve formwork support for the pipe top plate. The corner mold mechanism (23) is connected to the vertical drive mechanism (32) and cooperates with the side mold mechanism (21) and the top mold mechanism (22) to achieve formwork support for the corners at the connection between the pipe sidewall and the top plate. The side mold mechanism (21) includes an inner side mold (211), an outer side mold (212), and a tensioning member (213). The inner side mold (211) is connected to the horizontal drive mechanism (31). The outer side mold (212) is located on the side of the inner side mold (211) away from the horizontal drive mechanism (31). A cavity for pouring concrete is formed between the inner side mold (211) and the outer side mold (212). The inner side mold (211) and the outer side mold (212) are connected by the tensioning member (213). A sliding rod (5) is provided on the side of the inner mold (211) away from the outer mold (212). A sliding seat (6) is provided on the side wall of the trolley frame (1) to slide and cooperate with the sliding rod (5). The sliding seat (6) includes a first seat (61) and a second seat (62). The end of the sliding rod (5) away from the inner mold (211) passes through the first seat (61) and then through the second seat (62). A roller is rotatably installed on the bottom of the inner side of the first seat (61), and a roller is also rotatably installed on the top of the inner side of the second seat (62). The bottom of the sliding rod (5) abuts against the roller at the bottom of the first seat (61), and the top of the sliding rod (5) abuts against the roller at the top of the second seat (62).

2. The trolley formwork system for pipeline construction according to claim 1, characterized in that, It also includes a bottom walking device (4) and a frame vertical adjustment mechanism (7). The frame vertical adjustment mechanism (7) is installed at the bottom of the trolley frame (1) and is used to adjust the position of the trolley frame (1) in the vertical direction. The bottom walking device (4) is used to support and drive the trolley frame (1) to move along the pipeline laying direction.

3. A trolley formwork system for pipeline construction according to claim 2, characterized in that, The trolley frame (1) is provided with lateral limiting mechanisms (8) on both sides near the pipe sidewall. The lateral limiting mechanism (8) includes a spring rod (81) and a limiting roller (82). One end of the spring rod (81) is fixedly installed on the sidewall of the trolley frame (1), and the other end is set towards the pipe sidewall. The limiting roller (82) is rotatably installed on the end of the spring rod (81) away from the trolley frame (1), and the axis of rotation of the limiting roller (82) is located in the vertical direction.

4. A trolley formwork system for pipeline construction according to any one of claims 1 or 3, characterized in that, The trolley frame (1) is provided with precision positioning devices (9) on both sides near the side wall of the pipe. The precision positioning device (9) includes a horizontal telescopic component (91) and a limiting end plate (92). The horizontal telescopic component (91) is installed on the side wall of the trolley frame (1). The telescopic end of the horizontal telescopic component (91) is set towards the side wall of the pipe. The limiting end plate (92) is installed on the telescopic end of the horizontal telescopic component (91). The horizontal telescopic component (91) drives the limiting end plate (92) to move horizontally towards or away from the side wall of the pipe.

5. A trolley formwork system for pipeline construction according to claim 1, characterized in that, The top formwork mechanism (22) includes a top formwork (221), a first truss (222) and a second truss (223). The top formwork (221) is set on the top of the trolley frame (1). The first truss (222) is fixedly installed on the bottom of the top formwork (221). The second truss (223) is connected to the vertical drive mechanism (32) and is fixedly connected to the first truss (222).

6. A trolley formwork system for pipeline construction according to claim 5, characterized in that, The corner mold mechanism (23) includes a corner template (231) and a corner mold adjusting component (232). The corner template (231) is installed at the output end of the corner mold adjusting component (232). The corner mold adjusting component (232) is used to adjust the distance between the corner template (231) and the trolley frame (1). The corner template (231) includes a horizontal side template (2311), a vertical side template (2312), and a chamfered side template (2313). The horizontal side template (2311) and the vertical side template (2312) are respectively connected to the two sides of the chamfered side template (2313), and the horizontal side template (2311) and the vertical side template (2312) are perpendicular to each other. The horizontal side template (2311) is used to connect with the top template (221) and make the tops of the two located on the same horizontal plane. One end of the corner template adjusting member (232) is hinged to the end of the second truss (223), and the other end is hinged to the chamfered side template (2313).

7. A trolley formwork system for pipeline construction according to claim 6, characterized in that, The side walls of the horizontal side mold (2311) and the top mold (221) are respectively provided with matching ear plates, which are used to pass through bolts to connect and fix the horizontal side mold (2311) and the top mold (221).

8. A pipeline construction method employing a trolley formwork system for pipeline construction as described in any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Pour the pipe base plate (01) and pipe wall foundation (02); Step 2: The trolley frame (1) is moved to the preset position by the bottom walking device (4), and then the trolley template is precisely adjusted horizontally by the precision positioning device (9); then the trolley frame (1) is separated from the bottom walking device (4) under the action of the frame vertical adjustment mechanism (7), and then the trolley frame (1) is precisely adjusted vertically by the frame vertical adjustment mechanism (7); Step 3: Formwork support for the top plate and side walls of the pipeline. First, use the vertical drive mechanism (32) to move the top template (221) to the preset position to complete the formwork support for the top plate of the pipeline. Use the corner template adjustment component (232) to drive the corner template (231) to move so that the horizontal side template (2311) in the corner template (231) is on the same horizontal plane as the top template (221). Then fix the horizontal side template (2311) and the top template (221). The horizontal drive mechanism (31) drives the inner side wall template (211) to move away from the trolley frame (1) to the preset position. Then lift the outer side wall template (212) to the embedded part on the temporary support or the pipe wall foundation (02). Step 4: Binding and installation of reinforcement bars for the pipe top slab and side walls; Step 5: Adjust the distance between the outer mold (212) and the inner mold (211) of the side wall, and use the tensioner (213) to fix their positions; Step 6: Layered concrete pouring and curing; Step 7: Demolding. First, remove the outer mold of the side wall (212). Then, the inner mold of the side wall (211) retracts under the drive of the horizontal drive mechanism (31) to complete the demolding of the pipe side wall. Then, the top template (221) is fixed to the horizontal side template (2311). Then, the corner mold adjusting part (232) drives the corner template (231) to move towards the trolley frame (1). The vertical drive mechanism (32) drives the top template (221) to start to descend, completing the demolding of the pipe top plate. Step 8: The bottom walking device (4) moves to the bottom of the trolley frame (1), and then the trolley frame (1) is lowered by the vertical adjustment mechanism (7) and falls above the bottom walking device (4). Then it is driven by the bottom walking device (4) and moved to the next construction section. Repeat steps 2-8 to continue construction of subsequent sections until the pipeline is completely completed.

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