Formwork trolley for tunnel construction

Abstract

The utility model discloses a formwork trolley for tunnel construction, and relates to the technical field of tunnel construction equipment. A formwork trolley for tunnel construction comprises a main frame, a formwork mechanism and a supporting mechanism, the formwork mechanism and the supporting mechanism are arranged on the main frame, the formwork mechanism comprises a side formwork set and a top formwork set, the supporting mechanism comprises a plurality of telescopic side supporting assemblies and a plurality of telescopic top supporting assemblies, the side supporting assemblies are used for supporting the side formwork set, and the top supporting assemblies are used for supporting the top formwork set. The top supporting assembly is used for supporting the top formwork set. According to the formwork trolley, the formwork assembly is supported by adopting the telescopic supporting assembly, only the supporting mechanism needs to be driven to contract, so that the formwork mechanism is stored on the two sides of the main body frame in a folding structure, the overall occupied space of the formwork trolley can be effectively reduced, and the formwork trolley can be directly moved into a next section of tunnel without disassembling a formwork; and the construction efficiency of the tunnel secondary lining is improved.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction equipment, in particular to a template trolley for tunnel construction. Background Art

[0002] The formwork trolley is a special formwork equipment used in the secondary lining process of the tunnel, mainly used for the cement formwork construction of the inner wall of the tunnel. The formwork trolley mainly includes simple formwork trolley, fully hydraulic automatic walking formwork trolley and grid formwork trolley. Among them, the fully hydraulic formwork trolley can be divided into side top arch type, full circle needle beam type, bottom form needle beam type, full circle walking type, etc., and lifting slipform, jacking slipform and flip formwork are also commonly used in the construction of hydraulic tunnels and bridges.

[0003] However, due to technical and structural limitations, the existing formwork trolleys occupy a large space, so each time after completing a section of the tunnel construction, part of the formwork needs to be removed in order to pass the standard section of the tunnel. However, when moving to the next section of the tunnel, the disassembled formwork needs to be re-aligned and installed, which seriously affects the construction efficiency of the secondary lining of the tunnel. Utility Model Content

[0004] In order to enable the formwork trolley to move directly to the next section of the tunnel without dismantling the formwork after each completion of the secondary lining construction of a section of the tunnel, thereby improving the construction efficiency of the secondary lining construction of the tunnel, the present application provides a formwork trolley for tunnel construction.

[0005] The present application provides a template trolley for tunnel construction that adopts the following technical solution:

[0006] A template trolley for tunnel construction, comprising a main frame, a template mechanism and a support mechanism arranged on the main frame, wherein the support mechanism is installed on the main frame, and the template mechanism is supported on the peripheral side of the main frame by the support mechanism;

[0007] The template mechanism includes side template groups arranged on both sides and a top template group arranged on the top, and the support mechanism includes several groups of telescopic side support assemblies and top support assemblies, and the several groups of side support assemblies and top support assemblies are evenly distributed along the extension direction of the template trolley. One end of the side support assembly and the top support assembly are connected to the main frame, and the other end is hinged to the side template group and the top template group respectively.

[0008] By adopting the above technical solution, a retractable supporting mechanism is used to support the formwork mechanism. When the formwork trolley needs to be moved, it is only necessary to drive the supporting mechanism to retract, and the formwork mechanism is stored on both sides of the main frame in a reasonable folding structure, thereby effectively reducing the overall space occupied by the formwork trolley. The formwork can be directly moved to the next section of the tunnel without disassembling the formwork, which is beneficial to improving the construction efficiency of the secondary lining of the tunnel.

[0009] Optionally, the side formwork group includes a main side formwork, an upper side formwork and a lower side formwork, the upper side formwork and the lower side formwork are respectively located at the upper and lower ends of the main side formwork, and the upper side formwork and the lower side formwork are hinged to each other with the main side formwork, and the main side formwork, the upper side formwork and the lower side formwork are respectively provided with a main side cross frame, an upper side cross frame and a lower side cross frame on the side facing the main frame;

[0010] The side support assembly includes a main side support member, an upper side support member and a lower side support member that can be telescopic. The fixed ends of the main side support member, the upper side support member and the lower side support member are hinged to the main frame, and the telescopic ends are respectively hinged to the main side cross frame, the upper cross frame and the lower cross frame. The main frame is provided with a plurality of groups of side support brackets corresponding to the main side support members. The side support brackets extend vertically upward and support the main side support members.

[0011] By adopting the above technical solution, when the upper side support and the lower side support are driven to retract, the upper side formwork and the lower side formwork located on the upper and lower sides of the main side formwork can be bent and folded around the hinges, and then cooperate with the main side support to retract. The overall side formwork group can be folded and stored in the direction of the main frame, which is beneficial to reduce the space occupied by the formwork mechanism and enable the formwork trolley to move smoothly in the tunnel.

[0012] Optionally, the side support bracket has a retractable structure, the fixed end of the side support bracket is fixedly arranged on the main frame, the telescopic section of the side support bracket is telescopic in the vertical direction inside the fixed part, and is hinged with a support member, and the support member is fully fitted with the surface of the main side support member.

[0013] By adopting the above technical solution, the side support bracket with a retractable structure can make the structure of the entire template trolley compact after storage, further reducing the overall space occupied by the template trolley. Specifically, after the lower side template is bent and folded, the side support bracket is driven to shrink, and the main side support member drives the entire side template group to deviate downward with the side support bracket due to gravity, so that more space can be vacated on the top for the top template group to be stored, which is conducive to further reducing the volume of the template trolley after storage.

[0014] Optionally, a first pressing strip is provided on the inner side of the upper edge of the main side template, and a second pressing strip is provided on the inner side of the lower edge; a third pressing strip corresponding to the first pressing strip is provided on the outer side of the lower edge of the upper side template, and the third pressing strip can be extended and pushed by the upper side support to fit tightly with the first pressing strip; a fourth pressing strip corresponding to the second pressing strip is provided on the outer side of the upper edge of the lower side template, and the fourth pressing strip can be extended and pushed by the lower side support to fit tightly with the second pressing strip.

[0015] By adopting the above technical solution, when the upper side support and the lower side support push the upper side formwork and the lower side formwork outward, the first tightening bar can be tightened and limited to each other with the third tightening bar, and the second tightening bar can be tightened and limited to each other with the fourth tightening bar, thereby effectively preventing the upper side formwork and the lower side formwork from being pushed excessively, which is beneficial to maintaining the continuity and flatness of the outer side of the side formwork group.

[0016] Optionally, the top template group includes a main top template and top side templates hingedly arranged on both sides of the main top template, the main top template is an arc-shaped structure, and the main top template and the top side template are respectively provided with a main top cross frame and a top side cross frame on one side facing the main frame;

[0017] The top support assembly includes a telescopic main top support member, a top side support member and a lifting platform, the fixed end of the main top support member is fixedly connected to the main frame, the telescopic end of the main top support member extends in the vertical direction and is connected to the lifting platform, the lifting platform evenly extends a plurality of support rods along the arc structure of the main top template, the other end of the support rod is connected to the main top cross frame, the fixed end of the top side support member is hinged to both sides of the lifting platform, and the telescopic end of the top side support member is connected to the top side cross frame.

[0018] By adopting the above technical solution, when the top side support members are driven to shrink, the top side templates on both sides of the main top template can be bent and folded around the hinges, and then cooperate with the main top support members to shrink. The overall top template group can be folded down and stored, which is beneficial to reduce the space occupied by the template mechanism and enable the template trolley to move smoothly in the tunnel.

[0019] Optionally, each group of the top support components is provided with at least two main top support members.

[0020] By adopting the above technical solution, at least two main top support members are arranged in each group of top support components, which can fully support the lifting platform and facilitate the stable lifting of the lifting platform.

[0021] Optionally, a fifth tightening strip is provided on the inner sides of the two side edges of the main top template, and a sixth tightening strip corresponding to the fifth tightening strip is provided on the outer side of the edge of the top side template close to the main top template, and the sixth tightening strip can be extended by the top side support and pushed to fit tightly with the fifth tightening strip.

[0022] By adopting the above technical solution, when the top edge support pushes the top edge template outward, the fifth tightening bar can be tightened and limited against the sixth tightening bar, which can effectively prevent the top edge template from being pushed excessively, and is beneficial to maintaining the continuity and flatness of the outer side of the top template group.

[0023] Optionally, a workbench is detachably connected to the main frame, and a diagonal brace for supporting the workbench is detachably provided below the workbench, and the other end of the diagonal brace is detachably connected to the main frame.

[0024] By adopting the above technical solution, the workbench can be used for construction workers to stand and walk at a higher position, which is conducive to the construction workers to inspect and repair the formwork mechanism or the supporting mechanism. Secondly, the detachable workbench can be disassembled and stored when not in use, which is conducive to freeing up some space for the storage of the formwork mechanism.

[0025] In summary, the technical solution of this application has at least one of the following beneficial effects:

[0026] 1. By adopting a retractable support mechanism to support the formwork mechanism, when the formwork trolley needs to be moved, it is only necessary to drive the support mechanism to retract, and the formwork mechanism can be stored on both sides of the main frame in a reasonable folding structure, thereby effectively reducing the overall space occupied by the formwork trolley. The formwork can be directly moved to the next section of the tunnel without disassembling it, which is conducive to improving the construction efficiency of the tunnel secondary lining. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of a template trolley for tunnel construction in an embodiment of the present application, where the template trolley is in an unfolded state.

[0028] Figure 2 yes Figure 1 Cross-sectional view of AA.

[0029] Figure 3 This is a front view of a template trolley for tunnel construction in an embodiment of the present application, where the template trolley is in a stored state.

[0030] Description of reference numerals:

[0031] 1. Main frame; 11. Workbench; 12. Diagonal brace; 2. Formwork mechanism; 21. Side formwork group; 211. Main side formwork; 2111. Main side cross frame; 2112. First abutment bar; 2113. Second abutment bar; 212. Upper side formwork; 2121. Upper side cross frame; 2122. Third abutment bar; 213. Lower side formwork; 2131. Lower side cross frame; 2132. Fourth abutment bar; 214. Side hinge; 22. Top formwork group; 221. Main top formwork ; 2211, main top cross frame; 2212, fifth tightening strip; 222, top side template; 2221, top side cross frame; 2222, sixth tightening strip; 223, top hinge; 3, supporting mechanism; 31, side support assembly; 311, main side support member; 312, upper side support member; 313, lower side support member; 314, side support bracket; 3141, supporting member; 32, top support assembly; 321, main top support member; 322, top side support member; 323, lifting platform; 324, support rod. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] The present application embodiment discloses a template trolley for tunnel construction. Figure 1 and Figure 2 A template trolley for tunnel construction includes a main frame 1, and a template mechanism 2 and a support mechanism 3 arranged on the main frame 1. The template mechanism 2 is used to cooperate with the grouting process to complete the secondary lining construction of the tunnel, and the support mechanism 3 is used to support the template mechanism 2 with the surrounding side of the main frame 1 and form the shape of the inner wall of the tunnel.

[0034] Reference Figure 1 and Figure 3The template mechanism 2 includes a side template group 21 arranged on both sides of the main frame 1 and a top template group 22 arranged on the top of the main frame 1. The side template groups 21 and the top template group 22 on both sides can be spliced ​​and combined with each other to form a semi-circular arc-like tunnel wall structure. The support mechanism 3 includes a plurality of groups of side support assemblies 31 and top support assemblies 32 that can be telescopically supported, wherein the side support assemblies 31 are used to support the side template group 21, and the top support template group is used to support the top template group 22. The plurality of groups of side support assemblies 31 and top support assemblies 32 are evenly distributed along the extension direction of the template trolley, so that the side support assemblies 31 and the top support assemblies 32 can evenly support the side template group 21 and the top template group 22. Specifically, one end of the side support assembly 31 and the top support assembly 32 is connected to the main frame 1, and the other end is hinged to the side formwork group 21 and the top formwork group 22 respectively, so that the side formwork group 21 and the fixed formwork group can be further stored around the main frame 1 through the extension and contraction of the side support assembly 31 and the top support assembly 32, and the folding of the side formwork group 21 and the top formwork group 22. At this time, the formwork trolley occupies a small space and can be directly moved to the next section of the tunnel without disassembling the formwork, which is beneficial to improving the construction efficiency of the secondary lining of the tunnel.

[0035] Reference Figure 1 and Figure 3 The side template group 21 includes a main side template 211, an upper side template 212 and a lower side template 213. The main side template 211 is provided with a main side cross frame 2111 on the side facing the main frame 1. Similarly, the upper side template 212 and the lower side template 213 are provided with an upper side cross frame 2121 and a lower side cross frame 2131 on the side facing the main frame 1. The upper side template 212 and the lower side template 213 are respectively provided at the upper and lower ends of the main side template 211, and form a three-section structure of the upper side template 212-main side template 211-lower side template 213 from top to bottom. Specifically, the upper and lower ends of the main side template 211 are provided with side hinges 214. The upper side template 212 and the lower side template 213 are mutually connected with the main side template 211 through the side hinges 214, and can be folded and stored toward the side of the main side template 211 close to the main frame 1 through the side hinges 214.

[0036] Reference Figure 1 and Figure 3 The side support assembly 31 includes a main side support member 311, an upper side support member 312 and a lower side support member 313 that can be telescopic. In this embodiment, the main side support member 311, the upper side support member 312 and the lower side support member 313 are all hydraulic rods. Specifically, the fixed ends of the main side support member 311, the upper side support member 312 and the lower side support member 313 are all hinged to the main frame 1, and their telescopic ends are respectively hinged to the main side cross frame 2111, the upper side cross frame 2121 and the lower side cross frame 2131.

[0037] Reference Figure 1 and Figure 3The side support assembly 31 is also provided with a side support bracket 314 for supporting the main side support member 311. The side support bracket 314 can be a retractable or non-retractable rod. In the present embodiment, the side support bracket 314 is a retractable rod. Specifically, a hydraulic rod is also used. The fixed end of the side support bracket 314 is fixedly provided on the main frame 1. The retractable end of the side support bracket 314 extends in the vertical direction and is hinged with a support member 3141. The support member 3141 is in a semicircular arc shape. The support member 3141 fully fits the surface of the main side support frame and is used to support the main side support frame. When the side support bracket 314 contracts, the main side support member 311 will drive the entire side template group 21 to deviate downward along with the side support bracket 314 due to gravity, so that more space can be vacated at the top for the top template group 22 to be stored.

[0038] Reference Figure 1 and Figure 3 Further, a first abutting strip 2112 is provided on the inner side of the upper edge of the main side template 211, a second abutting strip 2113 is provided on the inner side of the lower edge, and a third abutting strip 2122 corresponding to the first abutting strip 2112 is provided on the outer side of the lower edge of the upper side template 212, and the third abutting strip 2122 can be extended and pushed by the upper side support 312 to be in close contact with the first abutting strip 2112. A fourth abutting strip 2132 corresponding to the second abutting strip 2113 is provided on the outer side of the upper edge of the lower side template 213, and the fourth abutting strip 2132 can be extended and pushed by the lower side support 313 to be in close contact with the second abutting strip 2113.

[0039] When the upper support member 312 and the lower support member 313 push the upper template 212 and the lower template 213 outward, the first tightening bar 2112 can be pressed against the third tightening bar 2122 to limit each other, and the second tightening bar 2113 can be pressed against the fourth tightening bar 2132 to limit each other, thereby effectively preventing the upper template 212 and the lower template 213 from being pushed excessively, which is beneficial to maintaining the continuity and flatness of the outer side of the side template group 21.

[0040] Reference Figure 1 and Figure 3The top template group 22 includes a main top template 221 and top side templates 222 arranged on both sides of the main top template 221. The main top template 221 and the top side template 222 are respectively provided with a main top cross frame 2211 and a top side cross frame 2221 on the side facing the main frame 1. Among them, the main top template 221 and the top side template 222 form a three-section structure of top side template 222-main top template 221-top side template 222, and the lower side edge of the top side template 222 and the upper side edge of the upper side template 212 are butted against each other, and the transition is natural and smooth. Specifically, top hinges 223 are provided at both ends of the inner side of the main top template 221. The top plate template is hinged to the main top template 221 through the top hinges 223, and can be folded and stored toward the side of the main top template 221 close to the main frame 1 through the top hinges 223.

[0041] Reference Figure 1 and Figure 3 The top support assembly 32 includes a main top support member 321 and a top side support member 322 that can be extended and retracted. In this embodiment, the main top support member 321 and the top side support member 322 are both hydraulic rods. Specifically, the fixed end of the main top support member 321 is set at the top position of the main frame 1, and the telescopic end of the main top support member 321 extends vertically upward and is provided with a lifting platform 323. The lifting platform 323 is provided with a plurality of non-retractable support rods 324. The end of the support rod 324 away from the lifting platform 323 is fixedly connected to the main top cross frame 2211, so that when the main top support member 321 is extended and retracted, the main top template 221 can be lifted and lowered together with the lifting platform 323. The fixed ends of the top side support member 322 are set on both sides of the lifting platform 323, and the telescopic ends are hinged to the top side cross frame 2221. Therefore, when the main top support member 321 contracts, the lifting platform 323 descends and drives the top side support member 322 to descend. At this time, the top side support member 322 contracts synchronously, and the top side template 222 can be further folded around the top hinge 223 to facilitate the storage of the top template group 22.

[0042] Furthermore, in order to maintain the smooth lifting of the lifting platform 323 and reduce the load of a single main top support member 321, in this embodiment, each top support assembly 32 is provided with two main top support members 321. The two active support members support the two ends of the lifting platform 323 respectively, so that the lifting platform 323 can be lifted and lowered smoothly through the extension and retraction of the main top support members 321.

[0043] Reference Figure 1 and Figure 3, the fifth abutting strip 2212 is arranged on the inner side of the two side edges of the main top template 221, and the sixth abutting strip 2222 is arranged on the outer side of the edge of the top side template 222 close to the main top template 221, the sixth abutting strip 2222 corresponds to the fifth abutting strip 2212, and the sixth abutting strip 2222 can be extended and pushed by the top side support 322 to fit tightly with the fifth abutting strip 2212. When the top side support 322 pushes the top side template 222 outward, the fifth abutting strip 2212 can be pressed against the sixth abutting strip 2222 to limit each other, thereby effectively preventing the top side template 222 from being pushed excessively, which is conducive to maintaining the continuity and flatness of the outer side of the top template group 22.

[0044] Reference Figure 1 , Figure 2 and Figure 3 The main frame 1 is provided with a workbench 11 for construction workers to stand and walk. Specifically, one end of the workbench 11 is detachably connected to the main frame 1. A diagonal brace 12 for supporting the workbench 11 is provided on the side of the workbench 11. The end of the diagonal brace 12 away from the workbench 11 is detachably connected to the main frame 1. Therefore, when the formwork mechanism 2 needs to be stored, the diagonal brace 12 can be removed first, and then the workbench 11 can be removed from the main frame 1, so that extra space can be freed up for the formwork mechanism 2 to be stored.

[0045] The implementation principle of a template trolley for tunnel construction in the embodiment of the present application is:

[0046] When the template trolley needs to be moved, the workbench 11 is first folded and stored. First, the diagonal support member 12 is disassembled from the main frame 1, and then the workbench 11 is disassembled, so that extra storage space can be vacated.

[0047] After the disassembly of the workbench 11 is completed, the upper side support 312, the lower side support 313 and the top edge support 322 begin to shrink, so that the upper side template 212 and the lower side template 213 are folded toward the inner side of the main side template 211, and the top edge template 222 is preliminarily folded toward the inner side of the main top template 221, and then the main side support 311 and the side support bracket 314 shrink, and the side template groups 21 on both sides will move slightly downward and be stored in the direction of the main frame 1. Finally, the main top support 321 is controlled to shrink, and the lifting platform 323 descends, driving the main top template 221 and the top edge template 222 to move downward at the same time, thereby completing the folding and storage of the overall template mechanism 2.

[0048] When the formwork mechanism 2 needs to be unfolded, the main top support 321 needs to be driven to extend first, the lifting platform 323 needs to rise, the main top template 221 and the top side template 222 need to move upward, and when space permits, the main side support 311 and the side support bracket 314 need to be driven to extend, at which time the side template group 21 is slightly lifted upward and stretched to both sides, and then the upper side support 312, the lower side support 313 and the top side support 322 need to be driven to extend, so that the upper side template 212, the lower side template 213 and the top side template 222 are unfolded at the same time. Finally, it is only necessary to install the workbench 11 and support the workbench 11 with the diagonal support 12 to complete the unfolding of the entire formwork mechanism 2.

[0049] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A template trolley for tunnel construction, characterized in that: It comprises a main frame (1), and a template mechanism (2) and a support mechanism (3) arranged on the main frame (1), wherein the support mechanism (3) is installed on the main frame (1), and the template mechanism (2) is supported on the peripheral side of the main frame (1) by the support mechanism (3); The template mechanism (2) comprises side template groups (21) arranged on both sides of the main frame (1), and a top template group (22) arranged on the top of the main frame (1); the support mechanism (3) comprises a plurality of groups of telescopic side support assemblies (31) and top support assemblies (32); the plurality of groups of side support assemblies (31) and top support assemblies (32) are evenly distributed along the extension direction of the template trolley; one end of the side support assemblies (31) and the top support assemblies (32) are connected to the main frame (1), and the other ends are respectively hinged to the side template group (21) and the top template group (22); The side formwork group (21) comprises a main side formwork (211), an upper side formwork (212) and a lower side formwork (213); the upper side formwork (212) and the lower side formwork (213) are respectively located at the upper and lower ends of the main side formwork (211); the upper side formwork (212) and the lower side formwork (213) are both hingedly connected to the main side formwork (211); and a main side cross frame (2111), an upper side cross frame (2121) and a lower side cross frame (2131) are respectively provided on the side of the main side formwork (211), the upper side formwork (212) and the lower side formwork (213) facing the main frame (1); The side support assembly (31) comprises a main side support member (311), an upper side support member (312) and a lower side support member (313) capable of being telescopic. The fixed ends of the main side support member (311), the upper side support member (312) and the lower side support member (313) are hinged to the main frame (1), while the telescopic ends are respectively hinged to the main side cross frame (2111), the upper side cross frame (2121) and the lower side cross frame (2131). The main frame (1) is provided with a plurality of groups of side support brackets (314) corresponding to the main side support members (311). The side support brackets (314) extend vertically upward and support the main side support members (311). The side support bracket (314) has a retractable structure, the fixed end of the side support bracket (314) is fixedly arranged on the main frame (1), the retractable end of the side support bracket (314) is retracted in the vertical direction inside the fixed end of the side support bracket (314), and is hinged with a support member (3141), and the support member (3141) is fully fitted with the surface of the main side support member (311).

2. A template trolley for tunnel construction according to claim 1, characterized in that: A first tightening strip (2112) is arranged on the inner side of the upper edge of the main side template (211), and a second tightening strip (2113) is arranged on the inner side of the lower edge; a third tightening strip (2122) corresponding to the first tightening strip (2112) is arranged on the outer side of the lower edge of the upper side template (212), and the third tightening strip (2122) can be extended and pushed by the upper side support member (312) to be tightly fitted with the first tightening strip (2112); a fourth tightening strip (2132) corresponding to the second tightening strip (2113) is arranged on the outer side of the upper edge of the lower side template (213), and the fourth tightening strip (2132) can be extended and pushed by the lower side support member (313) to be tightly fitted with the second tightening strip (2113).

3. The formwork trolley for tunnel construction according to claim 1, characterized in that: The top template group (22) comprises a main top template (221) and top side templates (222) hingedly arranged on both sides of the main top template (221); the main top template (221) is an arc-shaped structure; the main top template (221) and the top side template (222) are respectively provided with a main top cross frame (2211) and a top side cross frame (2221) on the side facing the main frame (1); The top support assembly (32) comprises a main top support member (321) capable of being telescopic, a top side support member (322) and a lifting platform (323), wherein the fixed end of the main top support member (321) is fixedly connected to the main frame (1), the telescopic end of the main top support member (321) extends in a vertical direction and is connected to the lifting platform (323), the lifting platform (323) evenly extends a plurality of support rods (324) along the arc structure of the main top template (221), the other end of the support rod (324) is connected to the main top cross frame (2211), the fixed end of the top side support member (322) is hinged to two sides of the lifting platform (323), and the telescopic end of the top side support member (322) is connected to the top side cross frame (2221).

4. A template trolley for tunnel construction according to claim 3, characterized in that: Each group of the top support components (32) is provided with at least two main top support members (321).

5. The formwork trolley for tunnel construction according to claim 3, characterized in that: A fifth tightening strip (2212) is arranged on the inner sides of the two side edges of the main top template (221), and a sixth tightening strip (2222) corresponding to the fifth tightening strip (2212) is arranged on the outer sides of the edge of the top side template (222) close to the main top template (221), and the sixth tightening strip (2222) can be extended and pushed by the top side support member (322) to fit tightly with the fifth tightening strip (2212).

6. The formwork trolley for tunnel construction according to claim 1, characterized in that: A workbench (11) is detachably connected to the main frame (1), and a diagonal brace (12) for supporting the workbench (11) is detachably provided below the workbench (11), the other end of the diagonal brace (12) being detachably connected to the main frame (1).

Images