A multi-mode tunnel trolley for easy and quick connection of arched straight-walled templates

Abstract

This invention relates to the field of tunnel construction technology, specifically to a multi-mode tunnel trolley for arched straight-wall tunnels that facilitates rapid formwork connection. It includes a trolley frame with multiple top formwork support cylinder assemblies at its upper end. Each top formwork support cylinder assembly has a top formwork quick-connection mechanism at its upper end. Multiple side formwork support cylinder assemblies are located on both sides of the trolley frame. Each side formwork support cylinder assembly is connected to a mounting frame, and each mounting frame has multiple side formwork quick-connection mechanisms. The top and side formwork quick-connection mechanisms have identical structures and both include a drive assembly and multiple connecting assemblies. This invention uses the drive assembly to provide power to move the connecting assemblies. The connecting assemblies connect the multi-mode tunnel trolley to the formwork's connecting ears. Disassembly is also achieved by the drive assembly separating the connecting assemblies from the formwork's connecting ears, thus achieving rapid separation and installation, thereby improving the efficiency of tunnel construction.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, and specifically to a multi-mode tunnel trolley for arched straight-wall tunnels that facilitates rapid connection of formwork. Background Technology

[0002] For arched straight-wall tunnels, the general pouring sequence is to pour the bottom slab first, followed by the side arches. The multi-mode arched straight-wall tunnel-type traveling lining trolley is a continuous pouring lining system. It uses one trolley with multiple sets of formwork, saving time on formwork removal and strength maintenance, thus essentially achieving continuous concrete pouring. Taking one trolley with three sets of formwork as an example, when the third section of concrete is poured, the first section has already reached its demolding strength. The trolley can pass through the third and second sets of formwork, enter the first set of formwork, and remove the formwork by lowering the top formwork and retracting the side formwork. It then passes through the second and third sections of formwork and erects the formwork at the fourth section, without waiting for the third section of concrete to reach its demolding strength. The trolley travels on the poured concrete bottom slab that has reached its design strength. After the trolley leaves, the formwork is self-stabilized by the steel ribs on the formwork and the pre-embedded bolts on the poured short walls.

[0003] However, the existing multi-mode tunneling trolley still has some shortcomings in use. The current multi-mode tunneling trolley needs to be constantly connected and disassembled with multiple sets of templates, but each connection point needs to be operated manually one by one, which greatly affects the efficiency of tunnel construction. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-mode tunnel trolley for arched straight-wall tunnels that facilitates quick connection of templates, so as to solve the problem of low connection efficiency between multi-mode tunnel trolleys and templates in the prior art.

[0005] The technical solution adopted by this invention to solve its technical problem is: a multi-mode tunnel trolley for easy and quick connection of templates, comprising a trolley frame, wherein multiple top mold support cylinder groups are linearly arranged on the upper end of the trolley frame, each top mold support cylinder group is provided with a top mold quick connection mechanism at its upper end, multiple side mold support cylinder groups are provided on both sides of the trolley frame, each side mold support cylinder group is connected to a vertically arranged mounting frame, and each mounting frame is provided with multiple side mold quick connection mechanisms, wherein the top mold quick connection mechanism and the side mold quick connection mechanism have the same structure and both include a drive component and multiple connecting components, the multiple connecting components are evenly distributed on the drive component, and each connecting component includes a first mounting block and a second mounting block arranged opposite to each other. The upper ends of a first mounting block and a second mounting block are respectively provided with a first connector and a second connector. The first connector includes a plug rod, a first frustum, and a first connecting part. The first connecting part is installed on the upper end of the first connector. The bottom end of the first frustum with a larger area is fixedly connected to the first connecting part. The plug rod is fixedly connected to the bottom end of the first frustum with a smaller area. The second connector includes a second connecting part and a second frustum. The second connecting part is located on the upper end of the second mounting block. The bottom end of the second frustum with a larger area is fixedly connected to the second connecting part. The second frustum has a first through hole for the plug rod to pass through. The second connecting part has a second through hole with the same diameter as the plug rod. The through hole, the first through hole, the plug rod, the first frustum, and the second frustum are all arranged coaxially.

[0006] Furthermore, the drive assembly includes a drive frame with a sliding rail. A drive rod parallel to the sliding rail is provided on the side of the sliding rail, and both ends of the drive rod are rotatably connected to the drive frame. The drive rod has multiple thread groups, each thread group including two drive threads with opposite helical directions. Each drive thread has a threaded block that engages with it. The end of the threaded block is slidably engaged with the sliding rail. The first mounting block and the second mounting block are disposed on the corresponding threaded blocks.

[0007] Furthermore, each of the drive rods is provided with a rocker handle at its end.

[0008] Furthermore, the first through hole is funnel-shaped, with the larger diameter end of the first through hole facing the insertion rod.

[0009] Furthermore, the end of the insertion rod facing the first through hole is truncated cone-shaped.

[0010] Furthermore, a trolley plate is provided in the middle of both sides of the trolley frame.

[0011] Furthermore, the lower end of the trolley frame is provided with a number of rollers, and the lower part of the trolley frame is provided with a driving component for driving the rollers to rotate.

[0012] Furthermore, the top of the trolley frame is provided with several top rods.

[0013] The beneficial effects of this invention are:

[0014] 1. When the present invention is in operation, the driving component provides power to move the connecting component. The connecting component connects the multi-mode traveling trolley and the template connecting ear together. When disassembling, the driving component also works to separate the connecting component from the template connecting ear, thereby achieving the effect of rapid separation and installation, so as to improve the efficiency of tunnel construction.

[0015] 2. The present invention uses rollers for movement. Compared with track movement, wheel movement makes the movement of the present invention faster and more convenient. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the quick-connect mechanism for the top mold in this invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a cross-sectional view of the connecting component and the connecting ear in this invention.

[0021] Reference numerals: 1. Trolley frame; 2. Top mold support cylinder assembly; 3. Top mold quick connection mechanism; 4. Side mold support cylinder assembly; 5. Mounting frame; 6. Side mold quick connection mechanism; 7. Drive assembly; 71. Drive frame; 72. Sliding rail; 73. Drive thread; 74. Threaded block; 8. Connecting assembly; 81. First mounting block; 82. Second mounting block; 83. First connector; 831. Insert rod; 832. First frustum; 833. First connecting part; 84. Second connector; 841. Second connecting part; 842. Second frustum; 843. First through hole; 844. Second through hole; 9. Crank handle; 10. Trolley plate; 11. Roller; 12. Top rod. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] The following is combined Figures 1 to 4 As shown, this embodiment of the invention provides a multi-mode tunnel trolley for arched straight-wall tunnels that facilitates rapid template connection. It includes a trolley frame 1, with multiple top-form support cylinder assemblies 2 linearly arranged on the upper end of the frame 1. Each top-form support cylinder assembly 2 has a top-form quick-connect mechanism 3 at its upper end. Multiple side-form support cylinder assemblies 4 are arranged on both sides of the trolley frame 1. Each side-form support cylinder assembly 4 is connected to a vertically arranged mounting frame 5, and each mounting frame 5 has multiple side-form quick-connect mechanisms 6. The top-form quick-connect mechanism 3 and the side-form quick-connect mechanism 6 have identical structures and both include a drive assembly 7 and multiple connecting assemblies 8. During operation, the drive assembly 7 provides power to move the connecting assemblies 8, which connect the multi-mode tunnel trolley to the template's connecting ears. Disassembly is also achieved by the drive assembly 7 separating the connecting assemblies 8 from the template's connecting ears, thus achieving rapid separation and installation, thereby improving tunnel construction efficiency.

[0024] In this invention, because the template is quite long, typically around 12 meters, there are numerous connecting lugs, especially along its length. During construction, such as during concrete drying and hardening, slight displacement may occur in certain areas of the template. For example, if one end of the template remains unchanged while the other end moves, the connecting lugs at one end may align with the connecting component 8, while the other end, due to the large span of the template, may not. Therefore, this invention does not connect all the connecting lugs of a template to the connecting component 8 simultaneously. Instead, multiple connecting components 8 are used, and the connecting lugs on the template are connected gradually. This first connects the connecting lugs at locations where the template has not shifted, allowing for adjustment and constraint on other positions. This ensures that the connecting lugs at other positions are realigned with their corresponding connecting components 8 under the constraint of the already connected lugs and connecting components 8, reducing the difficulty of operation. More specifically, for example... Figure 1 As shown, if there are 12 sets of connecting ears along the length of a single template, dividing these 12 sets of connecting ears into groups of three and connecting them to three sets of connecting components 8 in one go improves efficiency compared to the existing technology where workers connect them one by one. It also avoids the situation where connecting ears and connecting components 8 become severely misaligned due to excessive connections in one step. Of course, the specific grouping can be adjusted according to the actual situation. For example, groups of two, four, or even more connecting ears are all acceptable, as long as excessive misalignment between the connecting ears and connecting components 8 does not occur during actual operation.

[0025] Specifically, in order to enable the drive assembly 7 to drive the connection assembly 8, the structural design of the drive assembly 7 and the connection assembly 8 is as follows: The drive assembly 7 includes a drive frame 71, a sliding rail 72 is provided on the drive frame 71, a drive rod parallel to the sliding rail 72 is provided on the side of the sliding rail 72 and both ends of the drive rod are rotatably connected to the drive frame 71, the drive rod is provided with multiple thread groups, each thread group includes two drive threads 73 with opposite helical directions, each drive thread 73 is provided with a threaded block 74 that is threadedly engaged with it, the end of the threaded block 74 is slidably engaged with the sliding rail 72, and the first mounting block 81 and the second mounting block 82 are provided on the corresponding threaded block 74. Multiple connecting components 8 are evenly distributed on the drive component 7. Each connecting component 8 includes a first mounting block 81 and a second mounting block 82 arranged opposite to each other. The upper ends of the first mounting block 81 and the second mounting block 82 are respectively provided with a first connector 83 and a second connector 84. The first connector 83 includes a plug 831, a first frustum 832 and a first connecting part 833. The first connecting part 833 is installed on the upper end of the first connector 83. The bottom end of the first frustum 832 with a larger area is fixedly connected to the first connecting part 833. The plug 831 is connected to the surface of the first frustum 832. The smaller bottom end is fixedly connected to the second connector 84, which includes a second connecting part 841 and a second frustum part 842. The second connecting part 841 is located at the upper end of the second mounting block 82. The larger bottom end of the second frustum part 842 is fixedly connected to the second connecting part 841. The second frustum part 842 has a first through hole 843 for the insertion rod 831 to pass through. The second connecting part 841 has a second through hole 844 with the same diameter as the insertion rod 831. The through hole, the first through hole 843, the insertion rod 831, the first frustum part 832 and the second frustum part 842 are all arranged coaxially. Rotating the drive rod causes all the threaded parts to rotate together. The rotation of the two drive threads 73 in the same group will engage with the threaded blocks 74, causing the threaded blocks 74 to move synchronously towards each other or away from each other. During connection, the two threaded blocks 74 will drive the first mounting block 81 and the second mounting block 82 to move towards each other. During the movement, the insertion rod 831 will first be inserted into the through hole of the connecting ear, and then the insertion rod 831 will enter the first through hole 843 and the second through hole 844. At the same time, the first frustum 832 and the second frustum 842 will abut against the two sides of the connecting ear, completing the fixation of the connecting assembly 8 to the connecting ear. During disassembly, simply rotate the drive rod in the opposite direction to move the two threaded blocks 74 away from each other.

[0026] The dimensions of the insertion rod 831, the first frustum portion 832, and the second frustum portion 842 have two design methods, as detailed below:

[0027] One approach is to have the diameter of the insertion rod 831 smaller than the diameter of the connecting hole in the connecting ear. Simultaneously, the diameters of the two base surfaces of the first frustum 832 and the second frustum 842 are, respectively, larger than and smaller than the diameter of the connecting hole in the connecting ear. The advantage of this design is that, because the diameter of the insertion rod 831 is smaller than the diameter of the connecting hole in the connecting ear, it is easier to insert the insertion rod 831 into the connecting hole during connection, making alignment and docking easier. Therefore, more connecting components 8 can be set up simultaneously for synchronous connection or disassembly. However, after connection, the stability is insufficient as it only involves the waist of the first frustum 832 and the second frustum 842 fitting into the connecting ear. Slight wobbling may occur, causing a loose connection, but the wobbling is limited to within 1mm and will not significantly affect construction.

[0028] Another approach is to have the diameter of the insertion rod 831 equal to the diameter of the connecting hole in the connecting ear, and the diameter of the smaller bottom surface of the first frustum 832 and the second frustum 842 larger than the diameter of the connecting hole in the connecting ear. The advantage of this design is that, since the diameter of the insertion rod 831 is equal to the diameter of the connecting hole in the connecting ear, when the insertion rod 831 is inserted into the connecting ear, the entire insertion rod 831 can cooperate with the connecting ear to bear pressure, resulting in higher stability and less damage to the equipment. The disadvantage is that misalignment between the insertion rod 831 and the connecting hole may prevent proper docking. Therefore, it is not possible to set up more connecting components 8 as a group for connection or disassembly, which will affect the improvement of construction efficiency.

[0029] To facilitate the rotation of the drive rods, each drive rod is equipped with a crank handle 9 at its end. During operation, the operator can rotate the drive rod by turning the crank handle 9, making the operation simple and less strenuous.

[0030] In addition to the above embodiments, the present invention can also provide a drive motor at the end of the drive rod, so that the automatic operation of the connection component 8 can be realized by controlling the drive connection, which is more convenient than manual operation.

[0031] The first through hole 843 is set in the shape of a trumpet, with the larger diameter end of the first through hole 843 facing the insertion rod 831, so that the insertion rod 831 can be inserted into the first through hole 843.

[0032] During concrete construction, the position of the formwork may change slightly. When the trolley moves to the formwork again to disassemble it, the slight change in the formwork may cause a deviation between the position of the connecting hole of the connecting ear and the insertion rod 831, making it difficult to insert the insertion rod 831 into the connecting hole of the connecting ear. To avoid the above situation, the end of the insertion rod 831 facing the first through hole 843 is set to be frustum-shaped, and the end with the smaller diameter is inserted into the connecting hole first. Even if there is a slight deviation, it will not affect the operation of the connecting component 8.

[0033] Because the trolley frequently requires manual maintenance, and deviations may occur during the operation of the connecting components 8, trolley plates 10 are provided in the middle of both sides of the trolley frame 1. Workers can climb on the trolley plates 10 to adjust or clean the upper structure of the trolley. Before manual climbing, the side mold support cylinder group 4 is fully extended, so that the mounting frame 5 is completely away from the trolley frame 1, making the space on both sides of the trolley frame 1 convenient for workers to move and operate.

[0034] Specifically, the lower end of the trolley frame 1 is provided with several rollers 11, and the lower part of the trolley frame 1 is provided with a driving component for driving the rollers 11 to rotate. Using rollers 11 for movement makes the movement of the trolley more convenient. The trolley in this invention is mainly used for the construction of arched straight-wall tunnels, therefore no formwork is needed at the bottom, and thus there is no need to use a track-based movement method to move the trolley. Compared with track movement, wheeled movement makes the movement of this invention faster and more convenient. The driving component, composed of a motor and transmission gears, is used to drive the rollers 11 to rotate. This is existing technology, and the specific structure of the driving component will not be described in detail in this invention.

[0035] Specifically, the top of the trolley frame 1 is provided with several top rods 12, which can support the top mold and facilitate the installation and disassembly of the top mold.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-module passing trolley for circular-arched straight-wall type tunnels facilitating quick connection of the formwork, comprising a trolley frame (1), characterized in that, The upper end of the trolley frame (1) is linearly provided with a plurality of top die support cylinder groups (2), the upper end of each top die support cylinder group (2) is provided with a top die quick connection mechanism (3), both sides of the trolley frame (1) are provided with a plurality of side die support cylinder groups (4), each side die support cylinder group (4) is connected with a vertically arranged mounting rack (5), each mounting rack (5) is provided with a plurality of side die quick connection mechanisms (6), the top die quick connection mechanism (3) and the side die quick connection mechanism (6) are the same in structure and each include a driving assembly (7) and a plurality of connecting assemblies (8), the plurality of connecting assemblies (8) are uniformly distributed on the driving assembly (7), each connecting assembly (8) includes oppositely arranged first and second mounting blocks (81) and (82), the upper end of the first mounting block (81) is provided with a first connecting head (83), and the upper end of the second mounting block (82) is provided with a second connecting head (84), the first connecting head (83) includes a plug rod (831), a first circular table part (832) and a first connecting part (833), the first connecting part (833) is arranged at the upper end of the first connecting head (83), the first circular table part (832) is fixedly connected with the first connecting part (833) at the bottom end with a larger area, the plug rod (831) is fixedly connected with the bottom end with a smaller area of the first circular table part (832), the second connecting head (84) includes a second connecting part (841) and a second circular table part (842), the second connecting part (841) is arranged at the upper end of the second mounting block (82), the second circular table part (842) is fixedly connected with the second connecting part (841) at the bottom end with a larger area, the second circular table part (842) is provided with a first through hole (843) for the plug rod (831) to pass through, and the second connecting part (841) is provided with a second through hole (844) with the same diameter as the plug rod (831), and the through hole, the first through hole (843), the plug rod (831), the first circular table part (832) and the second circular table part (842) are coaxially arranged; The driving assembly (7) includes a driving frame (71), the driving frame (71) is provided with a sliding rail (72), the sliding rail (72) is provided with a driving rod parallel to the sliding rail (72) on the side, and the two ends of the driving rod are rotationally connected with the driving frame (71), the driving rod is provided with a plurality of threaded groups, each threaded group includes two driving threads (73) with opposite screw directions, each driving thread (73) is provided with a threaded block (74) threadedly matched with the driving thread (73), the end of the threaded block (74) is in sliding fit with the sliding rail (72), and the first mounting block (81) and the second mounting block (82) are arranged on the corresponding threaded block (74); The end of each driving rod is provided with a crank (9). The driving assembly (7) is used for driving the connecting assembly (8) to move, and the connecting assembly (8) is used for connecting the multi-mode passing trolley and the connecting lug of the formwork together.

2. A multi-form tunneling trolley of circular-arched straight wall type facilitating quick connection of forms according to claim 1, characterized in that, The first through hole (843) is trumpet-shaped, and the end of the first through hole (843) with a larger diameter is arranged towards the insertion rod (831).

3. A multi-form traversing trolley for circular-arched straight-wall type tunnels with quick connection of forms according to claim 1, characterized in that, The end of the insertion rod (831) towards the first through hole (843) is in a circular truncated cone shape.

4. A multi-form tunneling trolley of circular-arched straight wall type facilitating quick connection of forms according to claim 1, characterized in that, The trolley frame (1) is provided with trolley plates (10) at the middle portions of two sides.

5. A multi-form tunneling trolley of circular-arched straight wall type facilitating quick connection of forms as claimed in claim 1 wherein, The lower end of the trolley frame (1) is provided with a plurality of rollers (11), and the lower portion of the trolley frame (1) is provided with a driving piece used for driving the rollers (11) to rotate.

6. A multi-form tunnel jumbo trolley of circular-arched straight wall type facilitating quick connection of forms, as claimed in claim 1 wherein, The top of the trolley frame (1) is provided with a plurality of top rods (12).

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