Detachable and reusable rectangular blind ditch top plate bottom die device

Abstract

The utility model relates to the technical field of concrete pouring formwork construction, and provides a detachable and reusable rectangular blind ditch top plate bottom formwork device which comprises a frame beam, a plurality of groups of diagonal bracings, adjusting rods and a bottom plate, the bottom of the frame beam is provided with a plurality of groups of diagonal bracings, the diagonal bracings are of a parallelogram frame structure, and the bottom plate is arranged at the bottoms of the diagonal bracings. The adjusting rod is rotationally connected with the cross bridging to drive the cross bridging to stretch or compress. According to the device, the mounting and dismounting construction efficiency of the rectangular buried culvert bottom die can be improved, and the construction progress is accelerated; the template can be recycled, so that the investment of template materials is reduced, the construction cost is saved, and good economic benefits are realized; the supporting stability of the scissors is high, the erecting precision of the buried culvert bottom die can be improved, and the construction quality of the buried culvert is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pouring formwork construction, in particular to a detachable and reusable rectangular ditch top plate bottom formwork device. Background Art

[0002] Cast-in-place concrete rectangular culverts are widely used in highway, municipal and other engineering construction. During the culvert construction process, after the construction of the walls on both sides of the culvert is completed, it is necessary to support the culvert concrete top slab bottom formwork. The bottom formwork reinforcement construction is cumbersome. If vertical formwork support is used, after pouring the concrete, due to the small size of the culvert, personnel cannot enter the culvert, and the bottom formwork and supporting components cannot be removed. Not only is the construction efficiency low, but it also causes a large amount of investment and waste of turnover materials, increases construction costs, and has poor economy.

[0003] During the construction of cast-in-place concrete culvert top slab, the bottom formwork reinforcement construction is cumbersome, and after the construction of the cast-in-place culvert top slab is completed, the bottom formwork and vertical support components cannot be removed, resulting in a waste of materials and increased construction costs. During the entire process, the following problems exist: During the construction of cast-in-place concrete culvert top slab, the bottom formwork reinforcement is often achieved by drilling holes on the walls on both sides of the culvert to increase lateral support, and setting up a vertical stable support structure to ensure that the bottom formwork is firm. The construction process is cumbersome and the construction efficiency is slow; after the culvert top slab is cast, the bottom formwork and vertical support components cannot be removed, which not only causes a waste of materials and increases construction costs, but also affects the normal use of the subsequent culvert, and is prone to clogging.

[0004] Therefore, in view of the above problems, a detachable and reusable rectangular culvert top plate bottom mold device is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model develops a detachable and reusable rectangular culvert top plate bottom formwork device, which can improve the installation and dismantling construction efficiency of the rectangular culvert bottom formwork and speed up the construction progress; it can be reused, reduce the input of formwork materials, save construction costs, and achieve good economic benefits; the scissors support has strong stability, which can improve the support accuracy of the culvert bottom formwork and ensure the construction quality of the culvert.

[0006] The technical solution of the utility model to solve the technical problem is: the utility model provides a detachable and reusable rectangular ditch top plate bottom mold device, including a frame beam, a scissors strut, an adjusting rod and a bottom plate, a plurality of groups of scissors struts are arranged at the bottom of the frame beam, the scissors struts are in a parallelogram frame structure, a bottom plate is arranged at the bottom of the scissors struts, and the adjusting rod is rotatably connected to the scissors struts, driving the scissors struts to extend or compress.

[0007] As an optimization, the scissors brace includes lifting member one and lifting member two, lifting member one includes connecting rod one and connecting rod two, lifting member two includes connecting rod three and connecting rod four, connecting rod one and connecting rod three are rotatably arranged at the bottom of the frame crossbeam, connecting rod two and connecting rod four are rotatably arranged on the bottom plate, the ends of connecting rod one and connecting rod two are rotatably connected by bearings, the ends of connecting rod three and connecting rod four are rotatably connected, and a nut is arranged between connecting rod three and connecting rod four, a thread is arranged on the adjusting rod, and the adjusting rod passes through the nut and bearing on the scissors brace in sequence.

[0008] As an optimization, a support rod is arranged at the bottom of the frame crossbeam, and the connecting rod one and the connecting rod three are rotatably arranged on the support rod.

[0009] As an optimization, the adjusting rod includes a rotating shaft and a rotating handle. The rotating handle is arranged at one end of the rotating shaft. A thread matching the nut is arranged on the rotating shaft, and the rotating shaft passes through the nut and bearing arrangement of each set of scissors struts in sequence.

[0010] As an optimization, universal wheels are provided at the bottom of the base plate.

[0011] As an optimization, wooden formwork is set on the frame beams.

[0012] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0013] This device can improve the installation and removal construction efficiency of the rectangular culvert bottom formwork by setting up scissor struts, thereby accelerating the construction progress; it can be reused, reducing the input of formwork materials, saving construction costs, and achieving good economic benefits: the scissor struts are highly stable, can improve the support accuracy of the culvert bottom formwork, and ensure the construction quality of the culvert. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] Figure 1 The structural diagram used in this utility model;

[0016] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0017] Figure 3 This is a structural diagram of the bearing, nut and rotating shaft of the utility model;

[0018] Figure 4 It is the front view of the scissors support of the utility model.

[0019] In the figure, 1. rotating shaft; 11. strut; 2. scissor strut; 21. lifting part 1; 211. connecting rod 1; 212. connecting rod 2; 22. lifting part 2; 221. connecting rod 3; 222. connecting rod 4; 3. universal wheel; 4. bearing; 5. nut; 6. rotating handle; 7. frame beam; 8. wooden formwork; 9. culvert; 10. bottom plate. DETAILED DESCRIPTION

[0020] In order to clearly illustrate the technical features of this solution, the utility model is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] like Figures 1 to 4 As shown, a detachable and reusable rectangular ditch top plate bottom mold device includes a frame crossbeam 7, a scissor brace 2, an adjustment rod and a bottom plate 10. A plurality of groups of scissor braces 2 are arranged at the bottom of the frame crossbeam 7. The scissor braces 2 are in a parallelogram frame structure. The bottom plate 10 is arranged at the bottom of the scissor brace 2. The adjustment rod is rotated to connect the scissor brace 2, driving the scissor brace 2 to extend or compress. The adjustment rod is made of precision-rolled threaded steel, and the size can be adjusted according to the construction requirements. The scissor braces 2 are connected in series, and the height of the scissor brace 2 is adjusted by rotating the adjustment rod, thereby adjusting the height and accuracy of the installation.

[0022] In this embodiment, the scissors brace 2 includes a lifting member 21 and a lifting member 22, the lifting member 21 includes a connecting rod 211 and a connecting rod 212, the lifting member 22 includes a connecting rod 3 221 and a connecting rod 4 222, the connecting rod 1 211 and the connecting rod 3 221 are rotatably arranged at the bottom of the frame crossbeam 7, the connecting rod 2 212 and the connecting rod 4 222 are rotatably arranged on the bottom plate 10, the ends of the connecting rod 1 211 and the connecting rod 2 212 are rotatably connected through the bearing 4, the ends of the connecting rod 3 221 and the connecting rod 4 222 are rotatably connected, and a nut 5 is arranged between the connecting rod 3 221 and the connecting rod 4 222, and a thread is arranged on the adjusting rod, and the adjusting rod passes through the nut 5 and the bearing 4 on the scissors brace 2 in sequence. The scissors brace 2 is made of a material with good hardness and stiffness, and the support is stable and not easy to deform, thereby ensuring the construction quality.

[0023] A support rod 11 is arranged at the bottom of the frame cross beam 7 , and the connecting rod 1 211 and the connecting rod 3 221 are rotatably arranged on the support rod 11 .

[0024] In this embodiment, the adjusting rod includes a rotating shaft 1 and a rotating handle 6. The rotating handle 6 is arranged at one end of the rotating shaft 1. A thread matching the nut 5 is arranged on the rotating shaft 1, and the rotating shaft 1 passes through the nut 5 and the bearing 4 of each group of scissors struts 2 in sequence.

[0025] In this embodiment, universal wheels 3 are arranged at the bottom of the base plate 10. The universal wheels 3 can realize horizontal pushing of the entire device.

[0026] In this embodiment, a wooden template 8 is arranged on the frame crossbeam 7 .

[0027] First, the rotating shaft 1 uses a section of 5m long and 12mm diameter fine-rolled threaded steel (the specifications can be adjusted according to construction requirements), and a scissors brace 2 structure is set every 2m. When connected in series, the scissors brace 2 can move horizontally. A frame beam 7 is set above the scissors brace 2. The frame beam 7 is made of rectangular tubes and the specifications can be adjusted according to construction requirements. A wooden template 8 is set above the frame beam 7. The wooden template 8 is anchored and connected to the frame beam 7; the universal wheel 3 can realize horizontal dragging of the entire device. A 20cm long DN20 round tube rotating handle 6 is set at the outermost end of the rotating shaft 1. The specifications of the rotating handle 6 can be adjusted according to construction requirements. The rotating shaft 1 is rotated by turning the rotating handle 6, so that the nut 5 on the scissors brace 2 moves along the end rotating shaft 1, and then the bottom mold can be adjusted to move up and down.

[0028] During construction, the bottom formwork is adjusted to the designed elevation through the detachable and reusable bottom formwork device. After the concrete pouring of the culvert 9 is completed, the bottom formwork height is lowered by 3cm-5cm by rotating the rotating handle 6, and then the universal wheel 3 is dragged to smoothly remove the detachable and reusable bottom formwork device from the culvert 9, and then the top plate of the next section of the culvert 9 is constructed. At the same time, the length of the device can also be adjusted according to actual conditions to meet the construction progress requirements.

[0029] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A detachable and reusable rectangular ditch top plate bottom mold device, characterized by: The invention comprises a frame crossbeam (7), a scissors strut (2), an adjusting rod and a bottom plate (10); a plurality of groups of scissors struts (2) are arranged at the bottom of the frame crossbeam (7); the scissors struts (2) are in a parallelogram frame structure; a bottom plate (10) is arranged at the bottom of the scissors struts (2); and the adjusting rod is rotatably connected to the scissors struts (2), thereby driving the scissors struts (2) to extend or compress.

2. The detachable and reusable rectangular ditch top plate bottom mold device according to claim 1 is characterized in that: The scissors brace (2) comprises a lifting member 1 (21) and a lifting member 2 (22), wherein the lifting member 1 (21) comprises a connecting rod 1 (211) and a connecting rod 2 (212), and the lifting member 2 (22) comprises a connecting rod 3 (221) and a connecting rod 4 (222), wherein the connecting rod 1 (211) and the connecting rod 3 (221) are rotatably arranged at the bottom of the frame crossbeam (7), and the connecting rod 2 (212) and the connecting rod 4 (222) are rotatably arranged on the bottom plate (10), and the ends of the connecting rod 1 (211) and the connecting rod 2 (212) are rotatably connected via a bearing (4), and the ends of the connecting rod 3 (221) and the connecting rod 4 (222) are rotatably connected, and a nut (5) is arranged between the connecting rod 3 (221) and the connecting rod 4 (222), and a thread is arranged on the adjusting rod, and the adjusting rod passes through the nut (5) and the bearing (4) on the scissors brace (2) in sequence.

3. The detachable and reusable rectangular ditch top plate bottom mold device according to claim 2 is characterized in that: A support rod (11) is arranged at the bottom of the frame crossbeam (7), and a first connecting rod (211) and a third connecting rod (221) are rotatably arranged on the support rod (11).

4. The detachable and reusable rectangular ditch top plate bottom mold device according to claim 2 is characterized in that: The adjusting rod comprises a rotating shaft (1) and a rotating handle (6), wherein the rotating handle (6) is arranged at one end of the rotating shaft (1), a thread matching with a nut (5) is arranged on the rotating shaft (1), and the rotating shaft (1) passes through the nut (5) and the bearing (4) of each set of scissor struts (2) in sequence.

5. The detachable and reusable rectangular ditch top plate bottom mold device according to claim 1 is characterized in that: Universal wheels (3) are arranged at the bottom of the base plate (10).

6. The detachable and reusable rectangular ditch top plate bottom mold device according to claim 1 is characterized in that: A wooden template (8) is arranged on the frame crossbeam (7).

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