A mobile scaffold suitable for construction of variable-section tunnel canopy

Abstract

The invention relates to the technical field of tunnel canopy construction frames, and specifically to a mobile canopy suitable for the construction of variable-section tunnel canopies. The adjustment component comprises a vertically arranged jack installed at the lower end of a column, a first screw rod and an adjustment telescopic rod installed on the side wall of the column. The first screw rod is pressed between the side mold and the side wall of the column, and the upper bracket is pressed at the lower end of the top mold. The adjustment telescopic rod connects the inclined mold and the crossbeam. The beneficial effects are as follows: by splitting the traditional mold, the screw rod and the jack are used to cooperate to achieve fixed support for the split mold, and the bearing-type rotating installation of the screw rod is used to achieve the connection between the template and the support adjustment component, thereby avoiding the disassembly of the mold and greatly improving the assembly efficiency. At the same time, the cooperation of the gradient template is used to form an adaptation to the width adjustment gap, and a stable support and fixation of the mold is formed laterally, so that the installation of the canopy is adapted to the adjustment of the variable cross-section and the purpose of quick assembly is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel canopy construction frames, in particular to a mobile canopy frame suitable for the construction of variable-section tunnel canopies. Background Art

[0002] The canopy of the open section of the railway tunnel is a reinforced concrete structure, which is integrated with the tunnel structure, corrosion-resistant and beautiful. The canopy is designed with variable width and height.

[0003] The existing construction of variable-section frame canopies mostly adopts the full-frame bracket construction method. The full-frame bracket has many structural connection positions, and the purpose of fixing the mold is achieved through rigid connection to form a stable support.

[0004] However, in the actual construction process, due to the long construction length of the canopy, it is necessary to adjust the position of the mobile scaffolding according to the construction progress during the actual construction, so as to form continuous construction. However, the existing full-height bracket needs to be disassembled as a whole due to the lack of width adapter components at the connection position during the variable cross-section process and the lack of connection components at the bending position. The workload of assembly and disassembly is large, the construction period is long, and the construction cost is greatly increased. Summary of the invention

[0005] The purpose of the present invention is to provide a mobile scaffold suitable for the construction of a variable-section tunnel canopy, so as to solve the problem of convenient position adjustment and installation of the variable-section mobile scaffold.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mobile scaffold suitable for the construction of a variable-section tunnel canopy, the mobile scaffold comprising:

[0008] A shelf assembly is installed in the tunnel, and includes three groups of linearly distributed parallel columns, a beam and a diagonal brace laterally straddling the upper ends of the columns, a roller is provided at the lower end of the column, and the beam and the column are connected by symmetrically distributed diagonal braces between adjacent columns, and a pair of upper brackets symmetrically provided at the upper end of the beam;

[0009] A supporting formwork, the supporting formwork comprising a side formwork that fits with the tunnel side wall, a top formwork that fits with the tunnel top wall, and an inclined formwork that connects the side formwork and the top formwork;

[0010] An adjustment assembly, the adjustment assembly comprising a vertically arranged jack installed at the lower end of the column, a first screw rod installed at the side wall of the column and an adjustment telescopic rod, the first screw rod being pressed between the side mold and the side wall of the column, the upper bracket being pressed at the lower end of the top mold, and the adjustment telescopic rod connecting the tilting mold and the crossbeam;

[0011] A gradient template is provided between a pair of symmetrically distributed upper brackets, a fixed screw sleeve is provided at the lower end of the gradient template, a second screw rod is rotatably installed on the fixed screw sleeve and is against a pair of upper brackets symmetrically on the left and right, a plurality of groups of linearly plugged supporting wooden strips are provided at the upper end of the gradient template, a spring is pressed between the lower end of the supporting wooden strips and the gradient template, and the plurality of groups of linearly distributed supporting wooden strips are pressed between a pair of top molds symmetrically on the left and right.

[0012] Preferably, a base is provided at the lower end of the column, the jack is vertically installed between the column and the base, and the roller is rotatably installed at the lower end of the base.

[0013] Preferably, a slide groove is provided on the side wall of the base, and a sliding mounting plate is provided at the lower end of the diagonal support. The sliding mounting plate is inserted into the slide groove, and the sliding mounting plate is fixed to the base by fastening screws.

[0014] Preferably, a mounting seat is provided at the lower end of the crossbeam, the upper end of the diagonal brace is fixed on the mounting seat, and adjacent diagonal braces are fixedly connected by a connecting rod.

[0015] Preferably, the diagonal brace is provided with a pair of adjustment grooves distributed front and back, and a construction platform is transversely arranged between the diagonal brace and the column. The construction platform includes a first construction plate and a second construction plate which are plugged into each other, and one end of the second construction plate is slidably plugged into the adjustment groove.

[0016] Preferably, the side wall of the column is provided with a pair of slots distributed up and down, a terminal is provided at one end of the first construction board, and the other end of the first construction board is fixedly screwed and installed in the slot, and an inserting inner cavity is provided at the end of the second construction board, and a baffle is provided at the end of the inserting inner cavity, and the terminal is slidably inserted in the inserting inner cavity, and the width of the terminal is greater than the width of the first construction board.

[0017] Preferably, the upper bracket is provided with a plurality of groups of upper through beams distributed linearly, a hinge seat is provided at the outer end of the upper bracket, one end of the adjustable telescopic rod is rotatably mounted on the hinge seat, and the other end of the adjustable telescopic rod is fixed on the tilting mold.

[0018] Preferably, the lower end of the fixed screw sleeve is fixed on the cross beam, the fixed screw sleeve is fixedly connected to the gradient template through a telescopic column, the second screw rod is threadedly rotatably mounted on both ends of the fixed screw sleeve, and the other end of the second screw rod is rotatably mounted on the upper through beam.

[0019] Preferably, the gradient template is provided with a plurality of groups of through holes symmetrically distributed on the left and right, and a plug post is provided at the lower end of the supporting wooden strip. The plug post slides through the through hole, and the lower end of the plug post extends to the bottom of the gradient template, and a limiting end plate is provided at the lower end of the plug post.

[0020] Preferably, the spring is sleeved on the outer wall of the upper end of the plug column, and the spring is pressed between the supporting wooden strip and the upper end surface of the gradient template.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention splits the traditional mold, uses the cooperation of the screw rod and the jack to achieve fixed support for the split mold, and uses the bearing-type rotation installation of the screw rod to achieve the connection between the template and the support adjustment component, thereby avoiding the disassembly of the mold and greatly improving the efficiency of assembly. At the same time, the cooperation of the gradient template is used to adapt the width adjustment gap to form a stable support and fixation for the side of the mold, so that the installation of the scaffolding adapts to the adjustment of the variable cross-section and achieves the purpose of quick assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 for Figure 1 A magnified view of the structure at B in the middle;

[0025] Figure 3 for Figure 1 A magnified view of the structure at center;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the column of the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the gradient template of the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the gradient template assembly of the present invention.

[0029] In the figure: 1. tunnel; 2. column; 3. crossbeam; 4. roller; 5. jack; 6. base; 7. connecting rod; 8. sliding mounting plate; 9. fastening screw; 10. diagonal support; 11. adjustment slot; 12. side mold; 13. tilting mold; 14. top mold; 15. adjustable telescopic rod; 16. upper bracket; 17. gradient template; 18. mounting seat; 19. upper through beam; 20. first screw rod; 21. first construction board; 22. slot; 23. supporting wooden strip; 24. spring; 25. plug column; 26. limit end plate; 27. fixing screw sleeve; 28. telescopic column; 29. ​​second screw rod; 30. hinge seat; 31. through hole; 32. second construction board; 33. end block; 34. baffle; 35. slide groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] A mobile scaffold suitable for the construction of a variable-section tunnel canopy, the mobile scaffold comprising a scaffold assembly, a supporting template, a gradual template 17 and an adjusting assembly.

[0033] The scaffolding assembly is installed in the tunnel 1, and the scaffolding assembly includes three groups of linearly distributed parallel columns 2, crossbeams 3 and diagonal braces 10 transversely spanning the upper ends of the columns 2, rollers 4 are provided at the lower ends of the columns 2, and the crossbeams 3 and columns 2 are connected by symmetrically distributed diagonal braces 10 between adjacent columns 2. The rollers 4 are provided to realize convenient location transportation of the mobile scaffolding.

[0034] A pair of upper brackets 16 symmetrically arranged at the upper end of the crossbeam 3, the supporting formwork comprises a side formwork 12 fitted with the side wall of the tunnel 1, a top formwork 14 fitted with the top wall of the tunnel 1 and an inclined formwork 13 connecting the side formwork 12 and the top formwork 14, and the supporting formwork can be split to avoid disassembly of the supporting formwork.

[0035] The adjusting assembly includes a vertically arranged jack 5 installed at the lower end of the column 2, a first screw rod 20 installed on the side wall of the column 2, and an adjusting telescopic rod 15. The first screw rod 20 is pressed between the side mold 12 and the side wall of the column 2, and the upper bracket 16 is pressed at the lower end of the top mold 14. The adjusting telescopic rod 15 connects the inclined mold 13 and the crossbeam 3. The side mold 12 is pressed onto the inner wall of the tunnel 1 by the threaded rotation of the first screw rod 20. The inclined mold 13 is pressed onto the side wall of the tunnel 1 by adjusting the telescopic rod 15. The column 2 is driven to rise and fall by the jack 5, so that the upper bracket 16 drives the top mold 14 to be pressed onto the top wall of the tunnel 1, so as to achieve the purpose of fixing the supporting mold. When advancing the support and reverse disassembly, due to the bearing-type rotating installation of the screw rod, the supporting template and the adjusting assembly are connected as a whole, thereby avoiding the disassembly of the supporting mold. After the position is adjusted, the support can be achieved again by resetting and rotating the screw rod, which greatly improves the efficiency of assembly.

[0036] A gradient template 17 is arranged between a pair of symmetrically distributed upper brackets 16, a fixed screw sleeve 27 is arranged at the lower end of the gradient template 17, a second screw rod 29 is threadedly rotatably installed on the fixed screw sleeve 27 and rests on the pair of upper brackets 16 that are symmetrical on the left and right, a plurality of groups of linearly plugged supporting wooden strips 23 are arranged at the upper end of the gradient template 17, a spring 24 is pressed between the lower end of the supporting wooden strips 23 and the gradient template 17, and the plurality of linearly distributed supporting wooden strips 23 are pressed between a pair of top molds 14 that are symmetrical on the left and right.

[0037] By setting up the cooperation of the gradient template 17 and the supporting wooden strips 23, during the lifting process, the linearly distributed supporting wooden strips 23 are used to fill the gaps between adjacent top molds 14, thereby providing stable support on the side walls of the top mold 14, forming a width adjustment. At the same time, the width gap is adapted by the supporting wooden strips 23 to form a stable support and fixation for the side of the mold, so that the installation of the scaffolding adapts to the adjustment of the variable cross-section and achieves the purpose of quick assembly.

[0038] Embodiment 2:

[0039] On the basis of Example 1, in order to adapt to the adjustment of the width of the diagonal brace, the present application also has

[0040] A base 6 is provided at the lower end of the column 2, the jack 5 is vertically installed between the column 2 and the base 6, the roller 4 is rotatably installed at the lower end of the base 6, the side wall of the base 6 is provided with a slide groove 35, and the lower end of the diagonal brace 10 is provided with a sliding mounting plate 8, the sliding mounting plate 8 is inserted in the slide groove 35, and the sliding mounting plate 8 is fixed to the base 6 by fastening screws 9.

[0041] By setting the cooperation between the sliding mounting plate 8 and the slide groove 35, when the width of the mobile scaffold is adjusted, the lower end of the diagonal support 10 slides in the slide groove 35 to adapt to the width adjustment, and then a stable mobile scaffold structure is formed when adapting to variable-section transportation.

[0042] Embodiment 3:

[0043] On the basis of Example 2, in order to realize the convenient installation of the construction platform during the variable cross-section adjustment process, the present application also has a mounting seat 18 arranged at the lower end of the crossbeam 3, the upper end of the diagonal brace 10 is fixed on the mounting seat 18, the adjacent diagonal braces 10 are fixedly connected by a connecting rod 7, a pair of adjustment grooves 11 distributed front and back are arranged on the diagonal brace 10, a construction platform is transversely arranged between the diagonal brace 10 and the column 2, and the construction platform includes a first construction plate 21 and a second construction plate 32 which are plugged into each other, and one end of the second construction plate 32 is slidably plugged into the adjustment groove 11.

[0044] The side wall of the column 2 is provided with a pair of slots 22 distributed up and down, one end of the first construction board 21 is provided with a terminal 33, the other end of the first construction board 21 is fixedly screwed and installed in the slot 22, the end of the second construction board 32 is provided with an inserting cavity, the end of the inserting cavity is provided with a baffle 34, the terminal 33 is slidably inserted in the inserting cavity, and the width of the terminal 33 is greater than the width of the first construction board 21.

[0045] By setting a telescopically connected first construction board 21 and a second construction board 32, the width can be adjusted accordingly. By setting the end 33 and the baffle 34 to cooperate with each other, the first construction board 21 and the second construction board 32 can be prevented from falling off each other. Then, by installing construction platforms at different heights, construction requirements at different heights can be adapted.

[0046] Embodiment 4:

[0047] On the basis of Example 1, in order to facilitate the convenient adjustment of the position of the tilting mold 13, the present application also has a plurality of groups of upper through beams 19 distributed linearly arranged on the upper bracket 16, and a hinge seat 30 is arranged at the outer end of the upper bracket 16. One end of the adjusting telescopic rod 15 is rotatably installed on the hinge seat 30, and the other end of the adjusting telescopic rod 15 is fixed on the tilting mold 13.

[0048] By providing a rotatably mounted adjustable telescopic rod 15, the angle of the tilting mold 13 can be easily adjusted during the telescopic process to adapt to the fitting connection with different bending angles.

[0049] Embodiment 5:

[0050] On the basis of Example 1, in order to facilitate the position adjustment of the upper bracket 16, the present application also has a lower end of the fixed screw sleeve 27 fixed on the cross beam 3, the fixed screw sleeve 27 is fixedly connected to the gradient template 17 through a telescopic column 28, and the second screw rod 29 is threadedly rotatably installed on both ends of the fixed screw sleeve 27, and the other end of the second screw rod 29 is rotatably installed on the upper through beam 19.

[0051] By setting the second screw rod 29 to rotate on the fixed screw sleeve 27, the width between adjacent upper brackets 16 can be adjusted, so as to adapt to the support of the top wall of the tunnel 1 with different transverse widths.

[0052] Embodiment 6:

[0053] On the basis of Example 1, in order to achieve position limitation of the supporting wooden strip 23, the present application also has a plurality of groups of through holes 31 symmetrically distributed on the gradient template 17, and a plug post 25 is provided at the lower end of the supporting wooden strip 23. The plug post 25 slides through the through hole 31, and the lower end of the plug post 25 extends to the bottom of the gradient template 17, and a limiting end plate 26 is provided at the lower end of the plug post 25. The spring 24 is sleeved on the upper end outer wall of the plug post 25, and the spring 24 is pressed between the supporting wooden strip 23 and the upper end surface of the gradient template 17.

[0054] By setting the through hole 31, the plug column 25 and the limiting end plate 26, the limiting lifting movement of the supporting wooden strips 23 is formed, and the gradual template 17 is driven by the telescopic column 18 to be squeezed upward and pressed against the top wall of the tunnel 1. The gaps between adjacent top molds 14 are filled by multiple groups of linearly distributed supporting wooden strips 23, so that the outer layer of supporting wooden strips 23 fits the side wall of the top mold 14 to form a stable lateral support and limit the position of the top mold 14. By setting the linearly distributed supporting wooden strips 23, different gap widths can be adapted.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile scaffold suitable for the construction of a variable-section tunnel canopy, characterized in that: The mobile scaffolding comprises: A scaffolding assembly, the scaffolding assembly being installed in a tunnel (1), the scaffolding assembly comprising three groups of mutually parallel columns (2) distributed linearly, a crossbeam (3) laterally straddling the upper ends of the columns (2), and a diagonal brace (10), a roller (4) being arranged at the lower end of the column (2), the crossbeam (3) and the column (2) being connected by symmetrically distributed diagonal braces (10) between adjacent columns (2), and a pair of upper brackets (16) being symmetrically arranged at the upper end of the crossbeam (3); A supporting formwork, the supporting formwork comprising a side formwork (12) fitted with a side wall of the tunnel (1), a top formwork (14) fitted with a top wall of the tunnel (1), and an inclined formwork (13) connecting the side formwork (12) and the top formwork (14); An adjustment component, the adjustment component comprising a vertically arranged jack (5) mounted at the lower end of the column (2), a first screw rod (20) mounted on the side wall of the column (2), and an adjustment telescopic rod (15), the first screw rod (20) being pressed between the side mold (12) and the side wall of the column (2), the upper bracket (16) being pressed at the lower end of the top mold (14), and the adjustment telescopic rod (15) connecting the tilting mold (13) and the crossbeam (3); A gradient template (17), wherein the gradient template (17) is arranged between a pair of symmetrically distributed upper brackets (16), a fixing screw sleeve (27) is arranged at the lower end of the gradient template (17), a second screw rod (29) is rotatably installed on the fixing screw sleeve (27) and is supported on the pair of upper brackets (16) symmetrically on the left and right, a plurality of groups of linearly plugged support strips (23) are arranged at the upper end of the gradient template (17), a spring (24) is pressed between the lower end of the support strips (23) and the gradient template (17), and the plurality of linearly distributed support strips (23) are pressed between a pair of top molds (14) symmetrically on the left and right; The diagonal brace (10) is provided with a pair of adjustment grooves (11) distributed front and rear, and a construction platform is transversely arranged between the diagonal brace (10) and the column (2), the construction platform comprising a first construction plate (21) and a second construction plate (32) plugged into each other, and one end of the second construction plate (32) is slidably plugged into the adjustment groove (11); The upper bracket (16) is provided with a plurality of groups of upper through beams (19) distributed linearly, and a hinge seat (30) is provided at the outer end of the upper bracket (16); one end of the adjustable telescopic rod (15) is rotatably mounted on the hinge seat (30), and the other end of the adjustable telescopic rod (15) is fixed on the tilting mold (13); The gradient template (17) is provided with a plurality of groups of through holes (31) symmetrically distributed on the left and right sides, and a plug post (25) is provided at the lower end of the supporting wooden strip (23), and the plug post (25) slides through the through hole (31), and the lower end of the plug post (25) extends to the bottom of the gradient template (17), and a limiting end plate (26) is provided at the lower end of the plug post (25).

2. A mobile scaffold suitable for the construction of a variable-section tunnel canopy according to claim 1, characterized in that: A base (6) is provided at the lower end of the column (2), the jack (5) is vertically mounted between the column (2) and the base (6), and the roller (4) is rotatably mounted at the lower end of the base (6).

3. The mobile scaffolding suitable for the construction of a variable-section tunnel canopy according to claim 2, characterized in that: The side wall of the base (6) is provided with a slide groove (35), and the lower end of the diagonal support (10) is provided with a sliding mounting plate (8), the sliding mounting plate (8) is inserted into the slide groove (35), and the sliding mounting plate (8) is fixed to the base (6) by means of fastening screws (9).

4. The mobile scaffolding suitable for the construction of a variable-section tunnel canopy according to claim 3, characterized in that: A mounting seat (18) is provided at the lower end of the crossbeam (3), the upper end of the diagonal brace (10) is fixed on the mounting seat (18), and adjacent diagonal braces (10) are fixedly connected via a connecting rod (7).

5. The mobile scaffolding suitable for the construction of a variable-section tunnel canopy according to claim 1, characterized in that: The side wall of the column (2) is provided with a pair of slots (22) distributed up and down, one end of the first construction board (21) is provided with an end cap (33), the other end of the first construction board (21) is fixedly screwed and installed in the slot (22), the end of the second construction board (32) is provided with an inserting cavity, the end of the inserting cavity is provided with a baffle (34), the end cap (33) is slidably inserted in the inserting cavity, and the width of the end cap (33) is greater than the width of the first construction board (21).

6. The mobile scaffolding suitable for the construction of a variable-section tunnel canopy according to claim 1, characterized in that: The lower end of the fixed screw sleeve (27) is fixed on the cross beam (3), the fixed screw sleeve (27) is fixedly connected to the gradient template (17) via a telescopic column (28), the second screw rod (29) is threadedly rotatably mounted on both ends of the fixed screw sleeve (27), and the other end of the second screw rod (29) is rotatably mounted on the upper through beam (19) via a bearing.

7. The mobile scaffolding suitable for the construction of a variable-section tunnel canopy according to claim 1, characterized in that: The spring (24) is sleeved on the upper outer wall of the plug post (25), and the spring (24) is pressed between the supporting wooden strip (23) and the upper end surface of the gradient template (17).

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