Box culvert construction movable formwork device

Abstract

The utility model discloses a box culvert construction movable formwork device, including support frame, be located walking mechanism of support frame bottom and two side formworks, be equipped with top formwork assembly between the top of two side formworks, two side formworks are respectively located the left and right sides of support frame, and can be transversely mobile adjustment, and two side formworks with support frame all are equipped with the transverse drive part for driving side formwork transverse displacement, and top formwork assembly includes left top formwork, butt joint formwork and right top formboard, and the left side of left top formwork and the right side of right top formwork with the top of two side formworks are fixedly connected respectively, and the right side of left top formwork and the left side of right top formwork with the both sides of butt joint formwork are respectively movably sleeved. This box culvert construction movable formwork device can satisfy the vertical form requirement of different width, adapts well, is convenient for in and out culvert, and the risk of collision and damage is small, and the construction efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of box culvert construction technology, specifically to a mobile formwork device for box culvert construction. Background Technology

[0002] Chinese patent application No. 202310917157.X discloses an integrated formwork vehicle and construction method for a double-hole box culvert, comprising: an integrated formwork vehicle consisting of a formwork assembly, a support assembly, and a support assembly; the formwork assembly is positioned between the box culverts, the support assembly is positioned inside the formwork assembly, and the support assembly is positioned between the support assembly and the formwork assembly; the support assembly includes an upper longitudinal beam, The template assembly includes a lower longitudinal beam and a threaded rod. The upper longitudinal beam is located on the inner wall of the vertical arm of the template assembly and at the top of the template assembly. The lower longitudinal beam is located on the inner wall of the vertical arm of the template assembly and at the bottom of the template assembly. Multiple upper and lower longitudinal beams are arranged at equal intervals. The threaded rod is located on the side of the upper and lower longitudinal beams near the center of the template assembly. The template assembly includes a front top mold and a rear top mold. The template assembly is located above the support assembly. The rear top mold is located behind the front top mold. The template assembly also includes a front mold located on the lower end face of the front top mold and a rear mold located on the lower end face of the rear top mold. The rear mold is located behind the front mold. The integrated formwork vehicle for the double-hole box culvert has the following shortcomings: Since the width of the front top formwork is fixed, on the one hand, the front and rear side forms cannot be relatively translated to adjust the width of the formwork, making it difficult to meet the requirements of different widths of formwork and resulting in poor adaptability; on the other hand, although the front and rear side forms are hinged to the front top formwork and can rotate inward to shrink the space and rotate outward to achieve formwork erection, the width of the front top formwork cannot be changed, making it easy to collide with the tunnel wall during the process of entering the tunnel for formwork erection, which not only poses a high risk of damage but also reduces construction efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a mobile formwork device for box culvert construction that can meet the requirements of different widths of formwork, is adaptable, easy to enter and exit culverts, has a low risk of collision damage, and has high construction efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A mobile formwork device for box culvert construction includes a support frame, a traveling mechanism located at the bottom of the support frame, and two side formworks. A top formwork assembly is provided between the tops of the two side formworks. The two side formworks are respectively located on the left and right sides of the support frame and can be adjusted laterally. A lateral movement driving component for driving the side formworks to move laterally is provided between the two side formworks and the support frame. The top formwork assembly includes a left top formwork, a connecting formwork, and a right top formwork. The left side of the left top formwork and the right side of the right top formwork are fixedly connected to the tops of the two side formworks, respectively. The right side of the left top formwork and the left side of the right top formwork are movably sleeved with the two sides of the connecting formwork, respectively.

[0005] As a further improvement to the above technical solution: The two sides of the docking template are respectively provided with docking grooves, and the right side of the left top template and the left side of the right top template are respectively inserted into the corresponding docking grooves.

[0006] An elastic pull assembly is provided between the two side templates.

[0007] The elastic tension assembly includes two connecting seats and a tension spring connected between the two connecting seats, with the two connecting seats respectively installed on the inner sides of the two side templates.

[0008] Both of the two connecting seats are provided with connecting tubes at their opposite ends, and the tension spring is provided with an outer sleeve. The connecting tubes of the two connecting seats are movably connected to the two ends of the outer sleeve.

[0009] Each of the connecting seats has a blocking surface on the side facing the outer sleeve for blocking the outer sleeve.

[0010] The walking mechanism includes multiple walking wheels located at the bottom of the support frame, and the bottom of the support frame is also provided with multiple lifting outriggers.

[0011] The lifting outrigger is threadedly connected to the support frame.

[0012] Anti-detachment springs are provided between the left and right top templates and the docking template.

[0013] The lateral movement drive component is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0014] Compared with the prior art, the advantages of this utility model are: The construction process of this utility model's movable formwork device for box culvert construction is as follows: First, each lateral movement drive component drives the two side formworks to move laterally inward (in the direction of the lateral movement relative to the spacing between the two side formworks) to a recessed state that facilitates entry and exit. Then, the traveling mechanism moves the entire device to a designated position inside the culvert. Next, each lateral movement drive component drives the two side formworks to move laterally outward, positioning them at their respective formwork positions away from the inside of the culvert. The two side formworks also move outward relative to each other, forming an integral top formwork at the top of the culvert. Finally, end formworks are installed at both ends of the movable formwork device for box culvert construction, and concrete can then be poured. This movable formwork device for box culvert construction, because the two side formworks can be laterally moved and adjusted in interval, can meet the formwork requirements of different widths, is highly adaptable, facilitates entry and exit from the culvert, has a low risk of damage, and offers high construction efficiency. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the movable formwork device for box culvert construction according to this utility model.

[0016] Figure 2This is a schematic diagram of the elastic tension assembly of the movable formwork device for box culvert construction according to this utility model.

[0017] Figure 3 This is another structural schematic diagram of the movable formwork device for box culvert construction according to this utility model.

[0018] The labels in the diagram represent: 1. Support frame; 2. Traveling mechanism; 3. Side template; 4. Top template assembly; 41. Left top template; 42. Connecting template; 43. Right top template; 44. Connecting groove; 5. Lateral movement drive component; 6. Elastic pull-out assembly; 61. Connecting seat; 611. Connecting pipe; 612. Abutting surface; 62. Pull-out spring; 63. Outer sleeve; 7. Lifting outrigger; 8. Anti-detachment spring. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Example 1: Figure 1 and Figure 2This invention illustrates an embodiment of the movable formwork device for box culvert construction. The movable formwork device for box culvert construction in this embodiment includes a support frame 1, a traveling mechanism 2 located at the bottom of the support frame 1, and two side formworks 3. A top formwork assembly 4 is provided between the tops of the two side formworks 3. The two side formworks 3 are respectively located on the left and right sides of the support frame 1 and can be adjusted laterally. A lateral movement driving component 5 for driving the side formworks 3 to move laterally is provided between each side formwork 3 and the support frame 1. The top formwork assembly 4 includes a left top formwork 41, a connecting formwork 42, and a right top formwork 43. The left side of the left top formwork 41 and the right side of the right top formwork 43 are fixedly connected to the tops of the two side formworks 3, respectively. The right side of the left top formwork 41 and the left side of the right top formwork 43 are movably sleeved with the sides of the connecting formwork 42, respectively.

[0024] The construction process of this box culvert construction mobile formwork device is as follows: First, each lateral movement drive component 5 drives the two side formworks 3 to move laterally inward (in the direction of the lateral movement relative to the spacing between the two side formworks 3) to a recessed state that facilitates entry and exit. Then, the traveling mechanism 2 moves the entire device to the designated position inside the culvert. Next, each lateral movement drive component 5 drives the two side formworks 3 to move laterally outward, so that the two side formworks 3 are respectively located at the formwork erection position away from the inside of the culvert. The two side formworks 3 also move outward relative to the connecting formwork 42, forming an integral top formwork at the top of the culvert. Finally, end formworks are set at both ends of the box culvert construction mobile formwork device, and concrete can be poured. This box culvert construction mobile formwork device, because the two side formworks 3 can be laterally moved and the spacing adjusted, can meet the requirements of different widths of formwork erection, is well adaptable, facilitates entry and exit from the culvert, has a low risk of collision damage, and has high construction efficiency.

[0025] Furthermore, in this embodiment, the two sides of the mating template 42 are respectively provided with mating grooves 44, and the right side of the left top template 41 and the left side of the right top template 43 are respectively inserted into the corresponding mating grooves 44. Preferably, the mating grooves 44 are adapted to the opposite sides of the left top template 41 and the right top template 43.

[0026] Furthermore, in this embodiment, both the left top template 41 and the right top template 43 are perpendicular to the side templates 3. Preferably, the left top template 41 and the right top template 43 are welded to the two side templates 3 as a single unit.

[0027] Furthermore, in this embodiment, an elastic tension assembly 6 is provided between the two side templates 3. Demolding process: The external support driving force of the lateral movement drive component 5 is released. At this time, the two side templates 3 move laterally inward under the tension of the elastic tension assembly 6, achieving demolding while reducing volume. Of course, if the tension of the elastic tension assembly 6 is insufficient to achieve demolding, external force can be used for demolding.

[0028] Furthermore, such as Figure 2As shown, in this embodiment, the elastic tension assembly 6 includes two connecting seats 61 and a tension spring 62 connected between the two connecting seats 61. The two connecting seats 61 are respectively installed on the inner side of the two side templates 3.

[0029] Furthermore, in this embodiment, each of the two connecting seats 61 has a connecting tube 611 at its opposite ends, and an outer sleeve 63 is provided over the tension spring 62. The connecting tubes 611 of the two connecting seats 61 are movably connected to both ends of the outer sleeve 63. The outer sleeve 63 is fitted over the tension spring 62 to achieve a protective effect.

[0030] Furthermore, in this embodiment, each connecting seat 61 is provided with a stop surface 612 on the side facing the outer sleeve 63 for blocking the outer sleeve 63. Since the stop surface 612 can block the end face of the outer sleeve 63, the outer sleeve 63 can form a limit between the two side templates 3, limiting the lateral inward movement distance of the two side templates 3, which is beneficial to protecting the lateral movement drive component 5.

[0031] Furthermore, in this embodiment, the walking mechanism 2 includes multiple walking wheels located at the bottom of the support frame 1, and the bottom of the support frame 1 is also provided with multiple lifting outriggers 7. The lifting outriggers 7 can adjust the formwork height of this box culvert construction mobile formwork device, further improving its adaptability.

[0032] Furthermore, in this embodiment, the lifting outrigger 7 is threadedly connected to the support frame 1. Height adjustment can be achieved by rotating the lifting outrigger 7. Of course, in other embodiments, the lifting outrigger 7 can also be a hydraulic cylinder, pneumatic cylinder, or electric cylinder.

[0033] Furthermore, in this embodiment, the lateral movement drive component 5 is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. Multiple lateral movement drive components 5 can be provided according to actual needs.

[0034] Example 2: Figure 3 This paper illustrates another embodiment of the movable formwork device for box culvert construction of this utility model. The structure of this embodiment is basically the same as that of Embodiment 1, except that: in this embodiment, anti-detachment springs 8 are provided between the left top formwork 41 and the right top formwork 43 and the connecting formwork 42. In this way, when the left top formwork 41 and the right top formwork 43 move laterally outward relative to the connecting formwork 42 under the action of the side formwork 3, the anti-detachment springs 8 exert an external pulling force on both sides of the connecting formwork 42, which helps to prevent the connecting formwork 42 from shifting to one side or shifting too much, thus preventing the left top formwork 41 or the right top formwork 43 from separating from the connecting formwork 42.

[0035] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A movable formwork device for box culvert construction, comprising a support frame (1), a traveling mechanism (2) disposed at the bottom of the support frame (1), and two side formworks (3), wherein a top formwork assembly (4) is provided between the tops of the two side formworks (3), the two side formworks (3) are respectively disposed on the left and right sides of the support frame (1) and can be adjusted laterally, and a lateral movement driving component (5) for driving the side formworks (3) to move laterally is provided between the two side formworks (3) and the support frame (1), characterized in that: The top template assembly (4) includes a left top template (41), a docking template (42) and a right top template (43). The left side of the left top template (41) and the right side of the right top template (43) are fixedly connected to the top of the two side templates (3), respectively. The right side of the left top template (41) and the left side of the right top template (43) are movably connected to both sides of the docking template (42).

2. The movable formwork device for box culvert construction according to claim 1, characterized in that: The two sides of the docking template (42) are respectively provided with docking grooves (44), and the right side of the left top template (41) and the left side of the right top template (43) are respectively inserted into the corresponding docking grooves (44).

3. The movable formwork device for box culvert construction according to claim 1, characterized in that: An elastic pull assembly (6) is provided between the two side templates (3).

4. The movable formwork device for box culvert construction according to claim 3, characterized in that: The elastic tension assembly (6) includes two connecting seats (61) and a tension spring (62) connected between the two connecting seats (61), with the two connecting seats (61) respectively installed on the inner side of the two side templates (3).

5. The movable formwork device for box culvert construction according to claim 4, characterized in that: Both of the two connecting seats (61) are provided with connecting tubes (611) at opposite ends, and the tension spring (62) is provided with an outer sleeve (63). The two ends of the connecting tubes (611) and the outer sleeve (63) of the two connecting seats (61) are respectively movably connected.

6. The movable formwork device for box culvert construction according to claim 5, characterized in that: Each of the connecting seats (61) has a blocking surface (612) on the side facing the outer sleeve (63) for blocking the outer sleeve (63).

7. The movable formwork device for box culvert construction according to any one of claims 1 to 6, characterized in that: The walking mechanism (2) includes multiple walking wheels located at the bottom of the support frame (1), and the bottom of the support frame (1) is also provided with multiple lifting outriggers (7).

8. The movable formwork device for box culvert construction according to claim 7, characterized in that: The lifting outrigger (7) is threadedly connected to the support frame (1).

9. The movable formwork device for box culvert construction according to any one of claims 1 to 6, characterized in that: Anti-detachment springs (8) are provided between the left top template (41) and the right top template (43) and the docking template (42).

10. The movable formwork device for box culvert construction according to any one of claims 1 to 6, characterized in that: The lateral drive component (5) is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

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