A precast box girder formwork adjustment device

Abstract

This utility model discloses a precast box girder formwork adjustment device, which mainly includes multiple adjustment components, including a displacement trolley, a support frame, and a limiting plate. The position of the displacement trolley along the vertical support platform is determined by the vertical plate. Then, the displacement trolley is supported by the lifting column so that one end of the upper surface of the displacement trolley abuts and fits against the lower surface of the horizontal plate, thereby determining the height of the displacement trolley. This makes the position adjustment of the displacement trolley relatively simple and efficient. Finally, the formwork installed on the support frame is adjusted along the vertical support platform direction by the sliding support frame, thereby adapting to box girders of different widths.

Description

Technical Field

[0001] This utility model relates to the technical field of box girder manufacturing, and in particular to a precast box girder template adjustment device. Background Technology

[0002] Box girders are a type of beam used in bridge engineering. They are hollow inside and have flanges on both sides at the top. Box girders are generally cast-in-place. The dimensions of the box girder are first determined by inner and outer formwork, then the concrete is poured, and finally the formwork is removed after a period of time.

[0003] In existing technologies, when installing the outer formwork, supports are first set up on both sides of the support platform, and then the outer formwork is installed on the supports. The height and distance between the supports and the support platform are adjusted to ensure that the resulting pouring space meets the requirements after the formwork is installed. For example, the variable cross-section box girder integral formwork mentioned in patent application number CN201921815787.1 uses threaded support feet connected to the support frame. The height is adjusted by rotating the threaded support feet to ensure that the support frames on both sides of the support platform are at the same height. Then, the support frames on both sides are fixed using connectors that pass through the support platform, thus ensuring that the position of the support frames meets the usage requirements. However, some problems still exist during use and need to be improved:

[0004] 1. When installing the template and support frame, the height of the support frame and the distance between the two support frames need to be adjusted and confirmed manually multiple times to ensure that the height of the support frame and the position between the two support frames meet the requirements. This process is time-consuming and inefficient.

[0005] 2. There are many specifications for box girders. When manufacturing box girders of different widths, it is necessary to dismantle the original support frame and then readjust the distance between the support frames on both sides of the support platform to adapt to box girders of different widths. This results in a lot of time being spent adjusting the distance between the support frames, which is inefficient.

[0006] Therefore, there is an urgent need for a template adjustment device that can easily and quickly adjust the height of the template and support frame during installation, and also easily adjust the distance between two templates to accommodate box girders of different widths. Utility Model Content

[0007] The purpose of this utility model is to provide a precast box girder formwork adjustment device to solve the above-mentioned technical problems.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A precast box girder formwork adjustment device includes multiple adjustment components of equal quantity arranged opposite each other on both sides of a support platform, with the adjustment components on the same side arranged sequentially. Each adjustment component includes a displacement trolley, a support frame, an L-shaped limiting plate, and a formwork. The limiting plate includes a horizontal plate and a vertical plate. The vertical plate is detachably mounted on one side of the support platform, with its outer surface abutting and fitting against the side of the support platform. The upper surface of the horizontal plate is on the same horizontal plane as the upper surface of the support platform. The support frame is slidably mounted on the upper surface of the displacement trolley, and the formwork is detachably mounted on the support frame, with the lower surface of the formwork parallel to the support frame. On the platform surface and the lower surface of the displacement trolley, there are multiple lifting columns. The dimensions of the displacement trolley, horizontal plate, vertical plate, and template are consistent along the extension direction of the support platform, and the end faces of two adjacent templates are in contact with each other, as are the end faces of two adjacent vertical plates. When the adjustment component is installed on the support platform, the displacement trolley moves to the lower side of the horizontal plate at one end facing the support platform, and the lifting columns support the displacement trolley. The upper surface of the displacement trolley at one end facing the support platform is parallel to and abuts against the lower surface of the horizontal plate. The support frame drives the template to move back to its original position in the direction perpendicular to the side of the support platform, and the lower surface of the template abuts against and is parallel to the horizontal plate.

[0010] In some embodiments, the support platform is provided with multiple connecting rods, and both ends of the connecting rods are provided with external threads. The connecting rods are axially perpendicular to the side of the support platform. The vertical plate is provided with multiple fixing holes adapted to the connecting rods, and the multiple fixing holes are arranged sequentially at intervals along the extension direction of the support platform. The two ends of the connecting rods pass through the vertical plates arranged opposite to each other on both sides of the support platform and are connected to nuts. The side of the nut abuts against the inner surface of the vertical plate.

[0011] In some embodiments, when the adjustment component is installed, the end face of the displacement trolley facing the support platform abuts against one end of the connecting rod.

[0012] In some embodiments, the support frame includes a displacement platform and a mounting frame. The displacement platform is slidably disposed on the upper surface of the displacement trolley, the mounting frame is disposed on the upper surface of the displacement trolley, and the template is detachably disposed on the mounting frame.

[0013] In some embodiments, a driving member is provided on the side of the displacement platform away from the support platform, and one end of the driving member is fixedly connected to the side of the displacement platform.

[0014] In some embodiments, the mounting frame includes two support plates, multiple cross braces, multiple diagonal braces, and a mounting plate. The two support plates are disposed opposite each other on the upper surface of the displacement platform, and the multiple cross braces are disposed between the two support plates, with their ends abutting and fitting against the opposite sides of the two support plates. The mounting plate is adapted to the template, with its upper end disposed on the support plate near the support platform, and its lower surface abutting and fitting against the upper surface of the support plate. The multiple diagonal braces are disposed between the side of the mounting plate facing the support plate and the side of the support plate near the support platform. The template is detachably disposed on the mounting plate, with its side facing the mounting plate abutting and fitting against the side of the mounting plate opposite to the support plate.

[0015] In some embodiments, the lower end of the mounting plate is away from the displacement platform and opposite to the drive member, and is higher than the upper surface of the horizontal plate.

[0016] In some embodiments, a baffle is provided on the upper surface of the upper end of the mounting plate, and the side of the baffle abuts against and fits against the side of the upper end of the template.

[0017] In some embodiments, one of the multiple horizontal plates on the same side is provided with a limiting baffle. One end of the limiting baffle is disposed on the end face of the horizontal plate and is connected to the end face of the horizontal plate by a pivot. The side of the limiting baffle facing the horizontal plate abuts against and fits against the horizontal plate. When the limiting baffle is vertical, the lower end of the limiting baffle is located on the lower side of the horizontal plate. The horizontal plate provided with the limiting baffle is disposed at the beginning of the multiple horizontal plates on the same side.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] In this invention, the position of the displacement trolley along the vertical support platform is determined by the vertical plate. Then, the displacement trolley is supported by the lifting column, so that one end of the upper surface of the displacement trolley abuts and fits against the lower surface of the horizontal plate, thereby determining the height of the displacement trolley. This makes the position adjustment of the displacement trolley relatively simple and efficient. Finally, the template installed on the sliding support frame is adjusted along the vertical support platform direction by the sliding support frame, thereby adapting to box beams of different widths. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of a precast box girder formwork adjustment device after installation, according to an embodiment of this application.

[0022] Figure 2 This is a front view of a precast box girder formwork adjustment device after installation and width adjustment, according to an embodiment of this application.

[0023] Figure 3 for Figure 2 A top-view diagram showing the adjustment components installed on one side of the support platform;

[0024] Figure 4 This is a top view schematic diagram of the adjustment component of a precast box girder formwork adjustment device according to an embodiment of this application;

[0025] Figure 5 This is a top view of a precast box girder formwork adjustment device according to an embodiment of this application, when the adjustment component is not equipped with an installation plate;

[0026] Figure 6 This is a top view of the adjustment component of a precast box girder formwork adjustment device according to an embodiment of this application, when no mounting frame is provided;

[0027] Figure 7 This is a cross-sectional schematic diagram of the connection between the limiting plate and the support platform of a precast box girder formwork adjustment device according to an embodiment of this application;

[0028] Figure 8 This is a side view of the limiting plate of a precast box girder formwork adjustment device according to an embodiment of this application;

[0029] Figure 9 This is a bottom view of a displacement trolley for a precast box girder template adjustment device according to an embodiment of this application.

[0030] Figure 10 This is a top view of a precast box girder formwork adjustment device according to an embodiment of this application, showing the limiting plate being installed on a support platform.

[0031] Figure 11 This is a schematic diagram of a precast box girder template adjustment device according to an embodiment of this application, showing the connection between the limiting plate with the limiting baffle and the support platform.

[0032] Figure label:

[0033] 1-Supporting platform,

[0034] 2-Displacement trolley,

[0035] 3-Support frame, 31-Displacement platform, 32-Mounting bracket, 321-Support plate, 322-Horizontal brace plate, 323-Diagonal brace plate, 324-Mounting plate, 325-Baffle plate.

[0036] 4-Limit plate, 41-Horizontal plate, 411-Scale line, 42-Vertical plate, 421-Fixing hole

[0037] 5- Templates

[0038] 6-Rising bollards

[0039] 7-Connecting rod,

[0040] 8-Drive components,

[0041] 9-Limit baffle,

[0042] 10-Slide rail. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, 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, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0047] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0050] It should be understood that during the installation of templates and support frames, the height of the support frames and the distance between the two support frames need to be adjusted and confirmed manually multiple times to ensure that the height of the support frames and the position between the two support frames meet the requirements. This process is time-consuming and inefficient.

[0051] Meanwhile, due to the variety of box girder specifications, when manufacturing box girders of different widths, it is necessary to dismantle the original support frame and then readjust the distance between the support frames on both sides of the support platform to accommodate box girders of different widths. This results in a significant amount of time being spent adjusting the distance between the support frames, leading to low efficiency.

[0052] To improve the above problems, this embodiment provides a precast box girder template 5 adjustment device, which mainly includes multiple adjustment components. The adjustment components mainly include a displacement trolley 2, a support frame 3, an L-shaped limiting plate 4, and a template 5.

[0053] In this embodiment, as Figure 1 As shown, multiple adjustment components are arranged opposite each other on both sides of the support platform 1, and the number of adjustment components on both sides of the support platform 1 is the same. Multiple adjustment components on the same side are arranged sequentially and continuously, and multiple adjustment components on both sides of the support platform 1 are arranged opposite each other.

[0054] like Figure 1 As shown, the L-shaped limiting plate 4 includes a horizontal plate 41 and a vertical plate 42. The vertical plate 42 and the horizontal plate 41 are perpendicular to each other. The vertical plate 42 is detachably mounted on one side of the support platform 1, and its outer side abuts and fits against the side of the support platform 1. The upper side of the horizontal plate 41 is located on the same horizontal plane as the upper side of the support platform 1. The end faces of two adjacent horizontal plates 41 located on the same side of the support platform 1 abut and fit against each other, and the end faces of two adjacent vertical plates 42 located on the same side of the support platform 1 abut and fit against each other.

[0055] The support platform 1 is provided with multiple fixed connecting rods 7, and both ends of the connecting rods 7 are provided with external threads. The connecting rods 7 are axially perpendicular to the side of the support platform 1. The vertical plate 42 is provided with multiple fixing holes 421 that are adapted to the connecting rods 7. The multiple fixing holes 421 are arranged sequentially at intervals along the extension direction of the support platform 1. The two ends of the connecting rods 7 pass through the vertical plates 42 that are respectively arranged on both sides of the support platform 1 and are connected with nuts. The side of the nut abuts against the inner surface of the vertical plate 42, so that the limiting plate 4 can be disassembled and replaced, thereby facilitating maintenance and adapting to box girders of different widths.

[0056] In this embodiment, the displacement trolley 2 adopts a rectangular structure. When the adjustment device is installed, the end face of the displacement trolley 2 facing the support platform 1 is parallel to the side of the support platform 1 and abuts against one end of the connecting rod 7. This allows the displacement trolley 2 to be limited along the vertical support platform 1 during installation by one end of the connecting rod 7. Consequently, the position setting of the displacement trolley 2 along the side of the vertical support platform 1 is relatively simple and efficient.

[0057] The displacement trolley 2 is equipped with multiple moving wheels on its lower side for displacement.

[0058] In this embodiment, the upper surface of the displacement trolley 2 is provided with multiple slide rails, and the multiple slide rails are arranged sequentially at intervals along the extension direction of the support platform 1. At the same time, the extension direction of the slide rails is perpendicular to the extension direction of the support platform 1.

[0059] The support frame 3 is slidably mounted on the upper surface of the displacement trolley 2. The template 5 is detachably mounted on the support frame 3, and the lower surface of the template 5 is parallel to the upper surface of the support platform 1. Specifically, the support frame 3 includes a displacement platform 31 and a mounting frame 32. The displacement platform 31 is mounted on the upper surface of the displacement trolley 2 and is slidably connected to multiple slide rails. The mounting frame 32 is mounted on the upper surface of the displacement trolley 2, and the template 5 is detachably mounted on the mounting frame 32. A driving component 8 is provided on the side of the displacement platform 31 away from the support platform 1. One end of the driving component 8 is fixedly connected to the side of the displacement platform 31, thereby pushing the displacement platform 31 to move, thereby adjusting the position of the mounting frame 32 in the direction perpendicular to the support platform 1, and thereby adjusting the distance between the two relatively mounted templates 5, so as to adapt to box beams of different widths.

[0060] Among them, the driving component 8 can be an electric push rod, a hydraulic push rod, or other devices.

[0061] In this embodiment, the mounting frame 32 includes two support plates 321, multiple cross braces 322, multiple diagonal braces 323, and a mounting plate 324. The two support plates 321 are disposed opposite each other on the upper surface of the displacement platform 31, and the multiple cross braces 322 are disposed between the two support plates 321, with their ends abutting and fitting against the opposite sides of the two support plates 321. The mounting plate 324 is adapted to the template 5, with its upper end disposed near the support plate 321 on the support platform 1, and its lower surface abutting and fitting against the upper surface of the support plate 321. A diagonal brace 323 is disposed between the side of the mounting plate 324 facing the support plate 321 and the side of the support plate 321 near the support platform 1. The template 5 is detachably disposed on the mounting plate 324, and the side of the mounting plate 324 facing the support plate 321 abuts and fits against the side of the mounting plate 324 away from the support plate 321. The lower end of the mounting plate 324 is away from the displacement platform 31 and away from the drive member 8, and is higher than the upper surface of the horizontal plate 41. A baffle 325 is provided on the upper surface of the upper end of the mounting plate 324, and the side of the baffle 325 abuts and fits against the side of the upper end of the template 5.

[0062] The connection method between template 5 and mounting plate 324 is existing technology and will not be described in detail in this embodiment.

[0063] Among them, multiple scale lines 411 can be set on the upper surface of the horizontal plate 41 to mark different positions of the template 5, and thus corresponding to box beams of different widths.

[0064] In this embodiment, the lower surface of the displacement trolley 2 is provided with multiple lifting columns 6. The multiple lifting columns 6 are arranged sequentially and at intervals along the lower surface of the displacement trolley 2 to support the displacement trolley 2. This makes the position of the displacement trolley 2 stable, while one end of the upper surface abuts and fits against the lower surface of the horizontal plate 41, thus making the height adjustment of the displacement trolley 2 relatively simple.

[0065] Among them, the dimensions of the displacement trolley 2, the horizontal plate 41, the vertical plate 42 and the template 5 are consistent along the extension direction of the support platform 1, and the end faces of two adjacent templates 5 are in contact with each other, and the end faces of two adjacent vertical plates 42 are in contact with each other.

[0066] In this embodiment, one of the multiple horizontal plates 41 on the same side is provided with a limiting baffle 9. One end of the limiting baffle 9 is provided on the end face of the horizontal plate 41 and is connected to the end face of the horizontal plate 41 by a pivot. The side of the limiting baffle 9 facing the horizontal plate 41 abuts against and fits against the horizontal plate 41. When the limiting baffle 9 is vertical, the lower end of the limiting baffle 9 is located on the lower side of the horizontal plate 41. The horizontal plate 41 with the limiting baffle 9 is provided at the first end of the multiple horizontal plates 41 on the same side, which makes it easier to position the displacement trolley 2 along the extension direction of the support platform 1 when it is installed first, thus making the installation of subsequent devices easier and more efficient.

[0067] When the adjustment component is installed on the support platform 1, the displacement trolley 2 moves to the lower side of the horizontal plate 41 at one end facing the support platform 1, and the lifting column 6 supports the displacement trolley 2. The upper surface of the displacement trolley 2 facing the support platform 1 is parallel to and abuts the lower surface of the horizontal plate 41. The support frame 3 drives the template 5 to move back to its original position in the direction perpendicular to the side of the support platform 1. The lower surface of the template 5 abuts and is parallel to the horizontal plate 41.

[0068] In this embodiment, when installing and adjusting the template 5, the displacement trolley 2 at the first end is first installed at the first end with the limiting plate 4, so that the displacement trolley 2 abuts against the limiting plate 4 and the end face of the displacement trolley 2 abuts against the end face of the connecting rod 7, thereby determining the position of the displacement trolley 2. Then, the lifting column 6 is raised, causing the displacement trolley 2 to rise, with its upper surface abutting and fitting against the lower surface of the horizontal plate 41, so that the height of the displacement trolley 2 meets the requirements. Then, according to the width of the box girder, the driving component 8 pushes the displacement platform 31, causing the displacement platform 31 to move, thereby causing the displacement platform 31 to move the template 5 to the required position, thus completing the adjustment of the template 5. Then, based on the already installed adjustment components, subsequent adjustment components are installed according to requirements.

Claims

1. A precast box girder form adjustment device, characterized by: The adjusting assembly comprises a displacement trolley (2), a support frame (3), an L-shaped limiting plate (4) and a template (5). The limiting plate (4) comprises a horizontal plate (41) and a vertical plate (42), the vertical plate (42) is detachably arranged on one side of the support platform (1), and the outer side surface is in abutment and fit with the side surface of the support platform (1), and the upper surface of the horizontal plate (41) is in the same horizontal plane as the upper surface of the support platform (1). The support frame (3) is slidably arranged on the upper surface of the displacement trolley (2), and the template (5) is detachably arranged on the support frame (3), and the lower end surface of the template (5) is parallel to the upper surface of the support platform (1), and the lower surface of the displacement trolley (2) is provided with a plurality of lifting columns (6), the displacement trolley (2), the horizontal plate (41), the vertical plate (42) and the template (5) have the same size along the extension direction of the support platform (1), and the end surfaces of adjacent two templates (5) are in abutment with each other, and the end surfaces of adjacent two vertical plates (42) are in abutment with each other. When the adjusting assembly is installed on the support platform (1), the end of the displacement trolley (2) facing the support platform (1) is displaced to the lower side of the horizontal plate (41), and the lifting column (6) supports the displacement trolley (2), the upper surface of the end of the displacement trolley (2) facing the support platform (1) is parallel to and in abutment with the lower surface of the horizontal plate (41), the support frame (3) drives the template (5) to reciprocally displace along the direction perpendicular to the side surface of the support platform (1), and the lower end surface of the template (5) is in abutment with and parallel to the horizontal plate (41). The support platform (1) is provided with a plurality of connecting rods (7), and the two ends of each connecting rod (7) are provided with external threads, the connecting rod (7) is axially perpendicular to the side surface of the support platform (1), the vertical plate (42) is provided with a plurality of fixing holes (421) matched with the connecting rod (7), and the plurality of fixing holes (421) are sequentially and spacedly arranged along the extension direction of the support platform (1), and the two ends of the connecting rod (7) respectively pass through the vertical plates (42) arranged on the two sides of the support platform (1) and are connected with nuts, and the side surface of the nut is in abutment with the inner side surface of the vertical plate (42).

2. The precast box beam form adjustment device of claim 1, wherein: When the adjusting assembly is installed, the end surface of the displacement trolley (2) facing the support platform (1) is in abutment with one end of the connecting rod (7).

3. The precast box beam form adjustment device of claim 2, wherein: The support frame (3) comprises a displacement platform (31) and a mounting frame (32), the displacement platform (31) is slidably arranged on the upper surface of the displacement trolley (2), and the mounting frame (32) is arranged on the upper surface of the displacement trolley (2), and the template (5) can be detachably arranged on the mounting frame (32).

4. The precast box beam form adjustment device of claim 3, wherein: The side of the displacement platform (31) away from the support platform (1) is provided with a driving member (8), one end of the driving member (8) is fixedly connected with the side surface of the displacement platform (31).

5. The precast box beam form adjustment device of claim 4, wherein: ​ 6. The precast box beam form adjustment device of claim 5, wherein: The mounting frame (32) comprises two support plates (321), a plurality of cross struts (322), a plurality of inclined struts (323) and a mounting plate (324), the two support plates (321) are oppositely arranged on the upper surface of the displacement platform (31), the plurality of cross struts (322) are arranged between the two support plates (321), and the two ends are respectively in abutment and fit with the opposite sides of the two support plates (321), the mounting plate (324) is adapted to the template (5), the upper end of the mounting plate (324) is arranged on the support plate (321) close to the support platform (1), and the lower surface is in abutment and fit with the upper surface of the support plate (321), the plurality of inclined struts (323) are arranged between the side of the mounting plate (324) facing the support plate (321) and the side of the support plate (321) close to the support platform (1), the template (5) is detachably arranged on the mounting plate (324), and the side facing the mounting plate (324) is in abutment and fit with the side of the mounting plate (324) away from the support plate (321).

7. The precast box beam form adjustment device of claim 6, wherein: The lower end of the mounting plate (324) is away from one end of the displacement platform (31) away from the driving member (8), and is higher than the upper surface of the cross plate (41).

8. The precast box beam form adjustment device of claim 7, wherein: The upper surface of the upper end of the mounting plate (324) is provided with a baffle (325), and the side surface of the baffle (325) is in abutment and fit with the side surface of the upper end of the template (5).

9. The precast box beam form adjustment device of claim 8, wherein: One of the plurality of cross plates (41) on the same side is provided with a limiting baffle (9), one end of the limiting baffle (9) is arranged on the end surface of the cross plate (41), and is connected through a rotating shaft between the end surface of the cross plate (41), the side of the limiting baffle (9) facing the cross plate (41) is in abutment and fit with the cross plate (41), when the limiting baffle (9) is vertical, the lower end of the limiting baffle (9) is located on the lower side of the cross plate (41), and the cross plate (41) provided with the limiting baffle (9) is arranged at the leading end of the plurality of cross plates (41) on the same side.

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