Mold adjusting device for box culvert construction

Abstract

The utility model discloses a box culvert construction formwork adjusting device which comprises a movable supporting assembly and an adjusting connecting assembly installed on the movable supporting assembly, and the adjusting connecting assembly is correspondingly connected with a formwork assembly. The movable supporting assembly comprises a walking base and a corresponding steel rail, and a fixing frame is installed on the walking base. The adjusting connecting assembly comprises a forward and reverse transmission lead screw. The adjusting connecting assembly comprises a jacking lead screw and a jack. The template assembly comprises a side plate template, a top plate template and a chamfer hinge template; according to the utility model, through the design of the positive and negative transmission lead screws, the jacking lead screw and the jack, the device can realize fine and accurate adjustment of the template assembly; the positive and negative transmission lead screws can move in opposite directions only by rotating one screw cylinder, so that the position of the template can be more accurately controlled; the stability and the bearing capacity of the whole device are enhanced through the rectangular frame structure of the fixing frame and the design of inclined struts between the upper and lower transverse rods and the vertical rods.

Description

Technical Field

[0001] The utility model specifically relates to a formwork adjusting device for culvert construction. Background Technique

[0002] Culvert construction refers to the construction process of precast or cast-in-place concrete box culverts, which are usually used in projects such as drainage, culverts, and underground passages. Before construction, obstacles in the construction area need to be removed to ensure the construction site is flat. Precise lofting is carried out according to the design drawings, and then material preparation is carried out. Subsequently, construction processes such as foundation pit excavation, cushion construction, and culvert foundation construction are carried out. When carrying out the main body construction of the culvert, the precast culvert formwork needs to be transported to the site for hoisting and splicing, the formwork is erected on the foundation, steel bars are tied, and then concrete is poured. After the concrete reaches the design strength, the formwork and supports are removed.

[0003] At present, during the culvert construction process, a formwork trolley is needed to provide a stable support structure for the installation and disassembly of the formwork. The existing culvert and tunnel construction technologies are mostly integral or segmented cast-in-place support method construction technologies and simple formwork trolley construction technologies. In the cast-in-place support method construction process, there are problems such as a large amount of work for installing and removing formwork supports, many side wall tie rod holes, and many formwork joints. The simple formwork trolley method construction has high requirements for standardization. The traditional trolley is relatively simple, with problems such as poor structural stress performance, time-consuming and laborious assembly, and poor mobility, making it difficult to meet the construction standards.

[0004] Therefore, it is necessary to invent a formwork adjusting device for culvert construction to solve the above problems. Content of the Utility Model

[0005] (I) Purpose of the Utility Model

[0006] To solve the technical problems in the background technique, the utility model provides a formwork adjusting device for culvert construction, which improves the qualification rate of the structure protection layer and speeds up the culvert construction efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above purpose, the utility model provides the following technical solution: a formwork adjusting device for culvert construction, including multiple groups of mobile support components and multiple groups of adjusting connection components installed thereon, and the multiple groups of adjusting connection components are correspondingly connected to the formwork components;

[0009] The multiple groups of mobile support components include walking bases and corresponding steel rails. A fixing frame is installed on the walking base, and the adjusting connection components are connected to the side of the fixing frame;

[0010] The adjusting connection components on both sides include multiple positive and reverse transmission lead screws. One end of each of the multiple positive and reverse transmission lead screws is fixed on the fixing frame, and the other ends are commonly fixed on a vertical support rod;

[0011] The adjusting connection assembly described above at the top includes a plurality of jacking lead screws and jacks. One ends of the plurality of jacking lead screws and the jacks are fixed on the fixed frame, and the other ends are commonly fixed on the transverse support rod.

[0012] The formwork assembly includes side formwork, top formwork and chamfer hinge formwork. The chamfer hinge formwork is arranged at both bottom sides and is provided with a small forward and reverse transmission lead screw connected to the vertical support rod.

[0013] Preferably, the traveling base includes a supporting channel steel. The fixed frame is installed on the top of the supporting channel steel. A moving chute is connected to the bottom of the supporting channel steel. The moving chute is correspondingly installed on the rail. The rail is an I-shaped steel rail, with the upper end clamping the moving chute and the lower end connecting to the ground.

[0014] Preferably, the fixed frame is a rectangular frame, including an upper cross bar, a lower cross bar and vertical bars on both sides. The four bars enclose a rectangle, and diagonal braces are provided between every two of them. One ends of the plurality of forward and reverse transmission lead screws are fixed on one side of the vertical bar, and one ends of the plurality of jacking lead screws and the jacks are fixed on the top of the upper cross bar.

[0015] Preferably, the forward and reverse transmission lead screw includes two sections of lead screws. The two sections of lead screws are arranged at both ends of the screw barrel, and the thread directions of the two sections of lead screws are opposite. Correspondingly, the thread directions at both ends inside the screw barrel are also opposite, that is, rotating the screw barrel, and the moving directions of the lead screws at both ends are opposite.

[0016] Preferably, one end of [the relevant part] is provided with a connection hole. A rotating shaft is arranged in the connection hole. The rotating shaft is installed on the fixed base. A connection seat is arranged on the fixed base. A rotating hole is arranged on the connection seat. The rotating shaft is placed in the rotating hole.

[0017] Preferably, the small forward and reverse transmission lead screw has the same structure as the forward and reverse transmission lead screw.

[0018] Preferably, butt joint channel steels are welded to both sides of the side formwork, the top formwork and one end of the chamfer hinge formwork, and hinges are provided between every two formworks. One side of the butt joint channel steel is welded and fixed to one side of the vertical support rod and the transverse support rod.

[0019] Preferably, a plurality of weight reduction grooves are arranged inside the side formwork, the top formwork and the chamfer hinge formwork.

[0020] Compared with the prior art, the beneficial effects of the above technical solution of the present utility model are:

[0021] 1. Through the design of multiple forward and reverse transmission lead screws, jacking lead screws and jacks, the device of the utility model can achieve fine and accurate adjustment of the formwork assembly, so as to be applicable to the construction of culvert structures with different sizes and shapes, and has good versatility and adaptability;

[0022] 2. In the utility model, only by rotating one screw barrel of the forward and reverse transmission lead screw can the movement of the two ends of the lead screw in opposite directions be realized, so that the position of the formwork can be controlled more precisely, ensuring the construction accuracy;

[0023] 3. Through the rectangular frame structure of the fixing frame and the design of the diagonal braces between the upper and lower cross bars and vertical bars, the stability and load-bearing capacity of the whole device are enhanced. This structural design helps to bear a large construction load and improve the construction safety;

[0024] 4. By the combined use of the walking base and the steel rail, the whole formwork adjusting device can move within the construction site, so as to meet the construction needs of different positions, greatly improving the construction efficiency and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0026] Figure 1 Schematic diagram of the overall structure of the present utility model Figure 1 ;

[0027] Figure 2 Schematic diagram of the overall structure of the present utility model Figure 2 ;

[0028] Figure 3 For the Figure 1 structural schematic diagram of part A in the present utility model;

[0029] Figure 4 Schematic diagram of the mobile support assembly and adjustment connection assembly of the present utility model;

[0030] Figure 5 Schematic diagram of the formwork assembly of the present utility model;

[0031] Figure 6 Schematic diagram of the forward and reverse transmission lead screw of the present utility model.

[0032] Explanation of reference numerals:

[0033] 1. Mobile support assembly; 11. Walking base; 111. Support channel steel; 112. Mobile chute; 12. Rail; 13. Fixed frame; 131. Upper cross bar; 132. Lower cross bar; 133. Vertical bar; 134. Diagonal brace; 2. Adjusting connection assembly; 21. Positive and reverse transmission lead screw; 211. Lead screw; 212. Screw barrel; 213. Connection hole; 214. Rotating shaft; 215. Fixed base; 216. Connection seat; 217. Rotating hole; 22. Vertical support rod; 23. Jacking lead screw; 24. Jack; 25. Horizontal support rod; 26. Small positive and reverse transmission lead screw; 3. Formwork assembly; 31. Side formwork; 32. Top formwork; 33. Chamfer hinge formwork 33; 34. Docking channel steel; 35. Hinge; 36. Weight reduction groove. Detailed implementation mode

[0034] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0035] The present invention provides a box culvert construction formwork adjusting device as shown in Figures 1-6 Figure 10, including multiple groups of mobile support assemblies 1 and multiple groups of adjusting connection assemblies 2 installed thereon, and multiple groups of adjusting connection assemblies 2 are correspondingly connected to the formwork assembly 3;

[0036] Specifically, multiple groups of mobile support assemblies 1 include a walking base 11 and corresponding rails 12, a fixed frame 13 is installed on the walking base, and the adjusting connection assembly 2 is connected to the side of the fixed frame 13;

[0037] Specifically, the two-side adjusting connection assemblies 2 include multiple positive and reverse transmission lead screws 21, one ends of the multiple positive and reverse transmission lead screws 21 are fixed on the fixed frame 13, and the other ends are commonly fixed on the vertical support rod 22;

[0038] Specifically, the top adjusting connection assembly 2 includes multiple jacking lead screws 23 and jacks 24, one ends of the multiple jacking lead screws 23 and jacks 24 are fixed on the fixed frame 13, and the other ends are commonly fixed on the horizontal support rod 25;

[0039] Specifically, the formwork assembly 3 includes a side formwork 31, a top formwork 32 and a chamfer hinge formwork 33, the chamfer hinge formwork 33 is arranged at the two-side bottom, and a small positive and reverse transmission lead screw 26 is provided and connected to the vertical support rod 22.

[0040] In this embodiment, the positive and reverse transmission lead screw 21 is installed on the side of the vertical bar 133 of the fixed frame 13, and the other end is connected to the vertical support rod 22. The top adjusting connection assembly 2 installs the jacking lead screw 23 and the jack 24, which are fixed to the upper cross bar 131 of the fixed frame 13 and connected to the horizontal support rod 25.

[0041] Refer to Figure 3, the walking base 11 includes a support channel steel 111. A fixing frame 13 is installed on the top of the support channel steel 111. A moving chute 112 is connected to the bottom of the support channel steel 111. The moving chute 112 is correspondingly installed on the steel rail 12. The steel rail 12 is an I-shaped steel rail, with its upper end clamped to the moving chute 112 and its lower end connected to the ground.

[0042] In this embodiment, the I-shaped steel rails 12 are laid at the construction site to ensure that they are flat and firmly connected to the ground. The walking base 11 (including the support channel steel 111 and the moving chute 112) is installed on the steel rail 12 so that it can move along the steel rail 12. A fixing frame 13 is installed on the top of the support channel steel 111. The fixing frame 13 is a rectangular frame structure and includes diagonal braces 134 to enhance stability.

[0043] Refer to Figure 4 , the fixing frame 13 is a rectangular frame, including an upper cross bar 131, a lower cross bar 132 and vertical bars 133 on both sides. The four bars enclose a rectangle, and diagonal braces 134 are provided between every two of them. One ends of a plurality of positive and negative transmission lead screws 21 are fixed to one side of the vertical bar 133, and one ends of a plurality of jacking lead screws 23 and jacks 24 are fixed to the top of the upper cross bar 131.

[0044] Refer to Figure 6 , the positive and negative transmission lead screw 21 includes two sections of lead screws 211. The two sections of lead screws 211 are arranged at both ends of a screw barrel 212, and the thread directions of the two sections of lead screws 211 are opposite. Correspondingly, the thread directions at both ends inside the screw barrel 212 are also opposite, that is, when the screw barrel 212 is rotated, the moving directions of the two lead screws 211 at both ends are opposite.

[0045] Specifically, a connection hole 213 is provided at one end of the lead screw 211. A rotating shaft 214 is provided inside the connection hole 213. The rotating shaft 214 is installed on a fixed base 215. A connection seat 216 is provided on the fixed base 215. A rotating hole 217 is provided on the connection seat 216. The rotating shaft 214 is placed inside the rotating hole 217.

[0046] Specifically, the small positive and negative transmission lead screw 26 has the same structure as the positive and negative transmission lead screw 21.

[0047] In this embodiment, by rotating the screw barrel 212, the positive and negative transmission lead screw 21 is adjusted to achieve fine adjustment of the formwork, ensuring the accurate alignment and level of the formwork. The jacking lead screw 23 and the jack 24 are used for vertical adjustment and support of the top formwork. The positive and negative transmission lead screw 26 is a lead screw with screw threads in two opposite directions. Through the rotation cooperation with the screw barrel, it realizes transmission in two directions, converts the rotational motion into a linear motion, thereby realizing the contraction and extension of the formwork. In this embodiment, a seamless steel pipe with a diameter of 89 mm and a length of 250 mm is used as the screw barrel, and a lead screw with a diameter of 65 mm and a length of 170 mm is screwed into it to solve the problem of precise adjustment.

[0048] Refer toFigure 5 , docking channel steels 34 are welded to both sides of the side plate formwork 31, the top plate formwork 32 and one end of the chamfer hinge formwork 33, and hinges 35 are provided between the formworks in pairs. One side of the docking channel steel 34 is fixedly welded to one side of the vertical support rod 22 and the horizontal support rod 25.

[0049] Specifically, a plurality of weight reduction grooves 36 are provided in the side plate formwork 31, the top plate formwork 32 and the chamfer hinge formwork 33.

[0050] In this embodiment, the side plate formwork 31, the top plate formwork 32 and the chamfer hinge formwork 33 are connected to the vertical support rod 22 and the horizontal support rod 25 through the welded docking channel steels 34. The positive and reverse transmission lead screws 21 and the small positive and reverse transmission lead screws 26 are used for precise position adjustment to ensure that the formwork gap meets the design requirements. The hinges 35 are used to connect the formworks to facilitate the relative movement and adjustment between the formworks.

[0051] In this embodiment, through the design of the positive and reverse transmission lead screws, the device can very precisely adjust the position of the formwork to adapt to the requirements of culvert structures of different sizes and shapes, improving the construction accuracy. The mobile walking base enables the entire device to move easily within the construction site, adapting to different construction areas and significantly improving the construction efficiency. The design of the rectangular frame structure and the diagonal braces enhances the overall stability of the device, ensuring safety during the construction process. The weight reduction grooves in the formwork reduce the material usage, lower the cost, and at the same time simplify the handling and installation process of the formwork.

[0052] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A box culvert construction mold adjustment device, characterized in that: It includes multiple groups of mobile support components (1) and multiple groups of adjustment and connection components (2) installed thereon. The multiple groups of the adjustment and connection components (2) are correspondingly connected to the formwork component (3). The multiple groups of the mobile support components (1) include walking bases (11) and corresponding steel rails (12). A fixing frame (13) is installed on the walking base, and the adjustment and connection component (2) is connected to the side of the fixing frame (13). The adjustment and connection components (2) on both sides include multiple positive and reverse transmission lead screws (21). One ends of the multiple positive and reverse transmission lead screws (21) are fixed on the fixing frame (13), and the other ends are jointly fixed on a vertical support rod (22). The adjustment and connection components (2) at the top include multiple jacking lead screws (23) and jacks (24). One ends of the multiple jacking lead screws (23) and the jacks (24) are fixed on the fixing frame (13), and the other ends are jointly fixed on a horizontal support rod (25). The formwork component (3) includes side formworks (31), top formworks (32) and chamfer hinge formworks (33). The chamfer hinge formworks (33) are arranged at the bottoms on both sides and are provided with small positive and reverse transmission lead screws (26) connected to the vertical support rod (22).

2. The adjustable formwork device for box culvert construction according to claim 1, wherein: The walking base (11) includes a support channel steel (111). The fixing frame (13) is installed on the top of the support channel steel (111). A moving chute (112) is connected to the bottom of the support channel steel (111). The moving chute (112) is correspondingly installed on the steel rail (12). The steel rail (12) is an I-shaped steel rail, with the upper end clamping the moving chute (112) and the lower end connected to the ground.

3. The adjustable formwork device for box culvert construction according to claim 1, characterized in that: The fixing frame (13) is a rectangular frame, including an upper cross bar (131), a lower cross bar (132) and vertical bars (133) on both sides. The four bars enclose a rectangle, and diagonal braces (134) are provided between every two of them. One ends of the multiple positive and reverse transmission lead screws (21) are fixed on one side of the vertical bar (133), and one ends of the multiple jacking lead screws (23) and the jacks (24) are fixed on the top of the upper cross bar (131).

4. A box culvert construction mold adjustment device according to claim 1, characterized in that: The positive and reverse transmission lead screw (21) includes two sections of lead screws (211). The two sections of lead screws (211) are arranged at both ends of a screw barrel (212), and the thread directions of the two sections of lead screws (211) are opposite. Correspondingly, the thread directions at both ends inside the screw barrel (212) are also opposite, that is, when the screw barrel (212) is rotated, the moving directions of the two ends of the lead screws (211) are opposite.

5. The adjustable formwork device for box culvert construction according to claim 4, wherein: One end of the lead screw (211) is provided with a connection hole (213). A rotating shaft (214) is arranged in the connection hole (213). The rotating shaft (214) is installed on a fixed base (215). A connection seat (216) is arranged on the fixed base (215). A rotating hole (217) is arranged on the connection seat (216), and the rotating shaft (214) is placed in the rotating hole (217).

6. The adjustable formwork device for box culvert construction according to claim 1, wherein: The small positive and reverse transmission lead screw (26) has the same structure as the positive and reverse transmission lead screw (21).

7. A box culvert construction mold adjustment device according to claim 1, characterized in that: The side plate formwork (31), both sides of the top plate formwork (32) and one end of the chamfer hinge formwork (33) are all welded with butt joint channel steels (34), and hinges (35) are arranged between every two formworks. One side of the butt joint channel steel (34) is fixedly welded with one side of the vertical support rod (22) and the horizontal support rod (25).

8. A box culvert construction mold adjustment device according to claim 7, characterized in that: A plurality of weight reduction grooves (36) are arranged in the side plate formwork (31), the top plate formwork (32) and the chamfer hinge formwork (33).

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