Movable assembly type formwork for box culvert construction

Abstract

The utility model discloses a movable assembly type formwork for box culvert construction, which belongs to the technical field of box culvert formworks, and comprises an inner formwork and an outer formwork, the inner formwork comprises a bottom longitudinal beam, the bottom longitudinal beam is fixedly connected with a plurality of first support rods respectively, the first support rods are sleeved with first connecting pipes in a sliding manner, and the first connecting pipes are sleeved with second connecting pipes respectively; the end, away from the first supporting rod, of the first connecting pipe is slidably sleeved with a second supporting rod, transverse rods are fixedly connected to the second supporting rod, a second connecting pipe is arranged between the two transverse rods, hydraulic oil cylinders are fixedly installed on the first supporting rod, the second supporting rod and the transverse rods respectively, and inner formworks are detachably installed on piston rods of the hydraulic oil cylinders. The outer formwork comprises a support, an outer formwork is installed on the support, and idler wheels are installed at the bottom of the bottom longitudinal beam and the bottom of the support respectively. The utility model solves the problems that in the manufacturing process of the box culvert in the prior art, due to different sizes of the box culvert, the construction of a formwork is easily limited, the formwork is difficult to mount, dismount and circulate, the construction period is seriously restricted, and the construction cost is increased.

Description

Technical Field

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

[0002] Currently, urban drainage projects need to meet the ever-increasing demand for drainage while also facing the limitations imposed by municipal pipelines on burial depth. Traditional drainage pipes are no longer suitable and are gradually being replaced by box culverts.

[0003] The existing box culverts are made in various sizes, which can easily lead to limitations in formwork construction, difficulties in formwork installation, dismantling and transfer, seriously restricting the construction period and increasing construction costs. Utility Model Content

[0004] The purpose of this utility model is to provide a movable prefabricated formwork for box culvert construction, so as to solve the problem that in the existing technology, due to the different sizes of box culverts during the manufacturing process, the formwork construction is easily restricted, the installation, dismantling and transfer of the formwork is difficult, which seriously restricts the construction period and increases the construction cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a movable prefabricated formwork for box culvert construction, comprising an inner formwork and an outer formwork. The inner formwork includes two parallel bottom longitudinal beams, each with a plurality of first support rods fixedly connected to it. The plurality of first support rods are evenly spaced. A first connecting pipe is slidably sleeved on each of the first support rods. A second support rod is slidably sleeved on the end of the first connecting pipe away from the first support rod. A crossbar is fixedly connected to the second support rod. A second connecting pipe is provided between the two crossbars. The two ends of the second connecting pipe are slidably sleeved on the two crossbars. Limiting and fixing mechanisms are provided on the first and second connecting pipes respectively. Hydraulic cylinders are fixedly installed on the first support rods, the second support rods, and the crossbars respectively. An inner template is detachably installed on the piston rod of the hydraulic cylinder. The outer formwork is arranged on both sides of the inner formwork. The outer formwork includes a bracket, on which an outer template is installed. The outer template and the inner template are arranged parallel to each other. Rollers are installed on the bottom of the bottom longitudinal beams and the bracket respectively.

[0006] As a preferred technical solution of this utility model: the limiting and fixing mechanism includes a threaded rod, and a plurality of first threaded holes are evenly and equally spaced on the first support rod, the second support rod and the crossbar, and second threaded holes are respectively opened on the first connecting pipe and the second connecting pipe near their two ends. The threaded rod, the first threaded holes and the second threaded holes are used in conjunction with each other.

[0007] As a preferred technical solution of this utility model: a telescopic reinforcing rod is provided between the bottom longitudinal beam and several second connecting pipes.

[0008] The beneficial effects of this utility model by adopting the above technical solution are as follows: This utility model has a simple structure and ingenious design. By setting the first support rod, the second support rod, the crossbar, and the first connecting pipe and the second connecting pipe, the overall strength, rigidity and stability of the formwork frame are guaranteed. At the same time, the size of the inner formwork frame can be adjusted according to different size requirements, reducing the installation and dismantling process in the traditional construction process. The overall safety is high and the operability is strong. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the main structure of a movable prefabricated formwork for box culvert construction according to the present invention.

[0010] Figure 2 This is a schematic diagram of the structure of the outer mold frame in this utility model;

[0011] Figure 3 This is a schematic diagram of the inner mold frame in this utility model.

[0012] In the diagram: 1. Bottom longitudinal beam; 2. First support rod; 3. First connecting pipe; 4. Second support rod; 5. Crossbar; 6. Second connecting pipe; 7. Hydraulic cylinder; 8. Inner formwork; 9. Bracket; 10. Outer formwork; 11. Roller; 12. Telescopic reinforcing rod. Detailed Implementation

[0013] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as limiting this utility model. In this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "joined," "fixed," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0014] Please see Figure 1-3 This utility model provides an embodiment of a movable prefabricated formwork for box culvert construction, comprising an inner formwork and an outer formwork. The inner formwork includes two parallel bottom longitudinal beams 1, with a plurality of first support rods 2 fixedly connected to each of the two bottom longitudinal beams 1. The plurality of first support rods 2 are evenly spaced and uniformly arranged. A first connecting pipe 3 is slidably sleeved on the first support rod 2. A second support rod 4 is slidably sleeved at the end of the first connecting pipe 3 away from the first support rod 2. A crossbar 5 is fixedly connected to the second support rod 4. A second connecting pipe 6 is provided between the two crossbars 5. The two ends of the second connecting pipe 6 are slidably sleeved on the two crossbars 5, respectively. Limiting and fixing mechanisms are respectively provided on the first connecting pipe 3 and the second connecting pipe 6.

[0015] The limiting and fixing mechanism includes a threaded rod, and a number of first threaded holes are evenly spaced on the first support rod 2, the second support rod 4 and the crossbar 5. Second threaded holes are opened on the first connecting pipe 3 and the second connecting pipe 6 near their respective ends. The threaded rod, the first threaded holes and the second threaded holes are used in conjunction with each other.

[0016] Hydraulic cylinders 7 are fixedly installed on the first support rod 2, the second support rod 4, and the crossbar 5, respectively. An inner template 8 is detachably installed on the piston rod of the hydraulic cylinder 7. Through the connection between the first support rod 2, the second support rod 4, and the first connecting pipe 3, the height of the inner mold frame can be adjusted according to specific requirements. The crossbar 5 and the second connecting pipe 6 allow for adjustment of the width of the inner mold frame. The hydraulic cylinders 7 can fine-tune the final position of the inner template 8, ensuring dimensional accuracy.

[0017] The outer formwork frame is set on both sides of the inner formwork frame. The outer formwork frame includes a support 9, on which an outer template 10 is installed. The outer template 10 and the inner template 8 are arranged parallel to each other. Rollers 11 are installed at the bottom of the bottom longitudinal beam 1 and the support 9, respectively, to facilitate the movement of the inner and outer formwork frames during construction. Telescopic reinforcing rods 12 are connected between the bottom longitudinal beam 1 and several second connecting pipes 6 to further ensure the stability of the inner formwork frame.

[0018] Specific implementation method: By setting the first support rod 2, the second support rod 4, the crossbar 5, and the first connecting pipe 3 and the second connecting pipe 6, the overall strength, rigidity and stability of the formwork frame are guaranteed. At the same time, the size of the inner formwork frame can be adjusted according to different size requirements, reducing the installation and dismantling process in the traditional construction process. The overall safety is high and the operability is strong.

[0019] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A movable prefabricated formwork for box culvert construction, comprising an inner formwork and an outer formwork, characterized in that: The inner mold frame includes two parallel bottom longitudinal beams (1), and several first support rods (2) are fixedly connected to the two bottom longitudinal beams (1). The several first support rods (2) are evenly spaced. A first connecting tube (3) is slidably sleeved on the first support rod (2). A second support rod (4) is slidably sleeved on the end of the first connecting tube (3) away from the first support rod (2). A crossbar (5) is fixedly connected to the second support rod (4). A second connecting tube (6) is provided between the two crossbars (5). The two ends of the second connecting tube (6) are slidably sleeved on the two crossbars (5). On the first connecting pipe (3) and the second connecting pipe (6), a limiting and fixing mechanism is provided respectively. A hydraulic cylinder (7) is fixedly installed on the first support rod (2), the second support rod (4) and the crossbar (5). An inner template (8) is detachably installed on the piston rod of the hydraulic cylinder (7). The outer mold frame is set on both sides of the inner mold frame. The outer mold frame includes a bracket (9). An outer template (10) is installed on the bracket (9). The outer template (10) and the inner template (8) are arranged parallel to each other. Rollers (11) are installed at the bottom of the bottom longitudinal beam (1) and the bracket (9).

2. The movable prefabricated formwork for box culvert construction according to claim 1, characterized in that: The limiting and fixing mechanism includes a threaded rod. The first support rod (2), the second support rod (4) and the cross rod (5) are each provided with a plurality of first threaded holes at equal intervals. The first connecting pipe (3) and the second connecting pipe (6) are provided with second threaded holes at positions near both ends. The threaded rod, the first threaded holes and the second threaded holes are used in conjunction with each other.

3. A movable prefabricated formwork for box culvert construction according to claim 1, characterized in that: Telescopic reinforcing rods (12) are connected between the bottom longitudinal beam (1) and several second connecting pipes (6).

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