A roof formwork for a grain storage building

Abstract

This utility model discloses a roof formwork for grain storage buildings, including a reference rod, a lifting ring, a support plate, and multiple connectors. The reference rod is vertically arranged, and the top of the reference rod is coaxially connected to the base plate. The base plate is hinged to multiple formwork keels, allowing the formwork keels to swing along a vertical plane. The formwork keels extend radially along the base plate and bend towards the bottom of the reference rod to form an arc-shaped strip. The lifting ring is hinged to multiple support rods, each corresponding to a formwork keel and hinged to the middle of the corresponding formwork keel. The support plate is coaxially slidably fitted onto the reference rod. When the middle of the support plate abuts against the bottom of the lifting ring, the edge of the support plate abuts against the free end of the formwork keel. The connectors correspond one-to-one with the formwork keels, and the free ends of the formwork keels are detachably and fixedly connected to the edge of the support plate through corresponding connectors. This invention can solve the problem of low construction efficiency for hemispherical and near-hemispherical roofs while ensuring shape, structural performance, and support performance.

Description

Technical Field

[0001] This utility model relates to the field of roof formwork technology, specifically to a roof formwork for grain storage buildings. Background Technology

[0002] Roof formwork is an important step in building construction. It usually refers to the erection of a formwork support system during the construction of the roof structure to support the formwork for concrete pouring, ensuring that it can stably bear the load and prevent deformation during construction.

[0003] As a functional building form with a roof, grain storage buildings have high requirements for rain protection, prevention of roof water accumulation, and roof drainage to prevent water from seeping into the building and affecting the stored grain. Therefore, the roofs of grain storage buildings are generally designed as hemispherical, semi-hemispherical, or pointed. Among them, hemispherical and semi-hemispherical roofs, which have advantages in both space and drainage, have become the preferred choice.

[0004] However, hemispherical and near-hemispherical roofs present significant challenges when constructing formwork. Problems are commonly encountered in ensuring the shape, structural performance, and support performance of these types of formwork, resulting in low construction efficiency.

[0005] Therefore, this application is hereby submitted. Utility Model Content

[0006] The purpose of this invention is to provide a roof formwork for grain storage buildings, which solves the problem of low construction efficiency for hemispherical and near-hemispherical roofs while ensuring shape, structural performance and support performance.

[0007] This invention is achieved through the following technical solution:

[0008] A roof formwork for grain storage buildings includes: a reference rod, which is vertically arranged, with a base plate coaxially connected to its top end. The base plate is hinged with multiple formwork keels to allow the formwork keels to swing along a vertical plane. The formwork keels extend radially along the base plate and are bent toward the bottom end of the reference rod to form an arc-shaped strip. A lifting ring is hinged with multiple support rods, each corresponding to one of the formwork keels and hinged to the middle of the corresponding formwork keel. A support plate is slidably fitted coaxially onto the reference rod. When the middle of the support plate abuts against the bottom end of the lifting ring, the edge of the support plate abuts against the free end of the formwork keel. Multiple connectors are connected to one of the formwork keels, and the free end of the formwork keel is detachably and fixedly connected to the edge of the support plate through the corresponding connector.

[0009] In another preferred embodiment, an anti-bending rod is connected between the two ends of the formwork support keel; the end of the support rod away from the lifting ring is hinged to the middle of the corresponding anti-bending rod.

[0010] In another preferred embodiment, the anti-bending rod is a threaded telescopic rod; the formwork support keel is a rigid elastic component, or the formwork support keel is a rigid component, and the formwork support keel includes multiple sets, each set of the formwork support keel having a different curvature and length.

[0011] In another preferred embodiment, a retaining ring protrudes upward from the top surface of the support plate, and the retaining ring is disposed near the edge of the support plate; the connector is provided with a connecting end and a clamping end; the connecting end is hinged to the free end of the corresponding formwork keel; the clamping end is provided with an inner clamping wall and an outer clamping wall arranged in parallel and spaced apart, and the distance between the inner clamping wall and the outer clamping wall matches the thickness of the retaining ring; the clamping end is used to detachably clamp the retaining ring so that the inner clamping wall and the outer clamping wall are respectively attached to the inner wall and the outer wall of the retaining ring, and the inner clamping wall and the outer clamping wall are respectively fixedly connected to the inner wall and the outer wall of the retaining ring by bolts.

[0012] In another preferred embodiment, the support plate includes an inner plate and an outer ring, the inner plate and the outer ring being coaxial and coplanarly fitted together, and fixedly connected by multiple structural beams, the structural beams being arranged radially along the outer ring.

[0013] In another preferred embodiment, the lower part of the reference rod is detachably coaxially fitted with a telescopic support cylinder, and the top end of the telescopic support cylinder is coaxially connected to a flange, which is detachably and fixedly connected to the bottom end of the inner plate by a plurality of bolts.

[0014] In another preferred embodiment, the telescopic support cylinder is a hydraulic telescopic cylinder.

[0015] In another preferred embodiment, the system further includes multiple support columns, all of which are arranged in a ring at uniform intervals, and the top of each support column is detachably and fixedly connected to the bottom surface of the outer ring.

[0016] In another preferred embodiment, the support column is a hydraulic telescopic column.

[0017] In another preferred embodiment, a plurality of cover templates are further included, which are used to lay on the top surface of two adjacent formwork keels to cover the top surface of all the formwork keels to form a spherical mold layer.

[0018] Because this utility model adopts the above-mentioned technical solution, it has the following positive effects compared with the prior art:

[0019] This utility model discloses a roof formwork for grain storage buildings. By setting up a reference rod, base plate, formwork joists, lifting rings, and struts, a rapid-lifting structure is formed. By pushing the lifting rings up along the reference rods, the formwork joists are gradually lifted by the struts, allowing all the formwork joists to unfold synchronously. This results in the top surface of all the formwork joists forming a hemispherical or near-hemispherical surface (the length and curvature of the formwork joists are designed according to requirements). Furthermore, by setting up a support plate, the lifting rings and the free ends of the formwork joists are supported at the center and edges, respectively. By setting connectors, the free end of the formwork keel is fixedly connected to the edge of the support plate, thereby converting the gravity of the formwork keel into the radial pressure of the support plate. This allows the support plate to effectively support the formwork keel, while also providing longitudinal structural support to the lifting ring. Structural supports are formed from the center and the edges to maintain structural stability. Through the cooperation of the above features, this roof formwork for grain storage buildings can effectively solve the problem of low construction efficiency for hemispherical and near-hemispherical roofs while ensuring shape, structural performance, and support performance. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 A front view schematic diagram of a roof formwork for a grain storage building provided by this utility model;

[0022] Figure 2 A front view schematic diagram of the roof formwork support for a grain storage building provided by this utility model;

[0023] Figure 3 A top view schematic diagram of a support plate for roof formwork of a grain storage building provided by this utility model;

[0024] Figure 4 A schematic diagram illustrating the laying of a formwork covering for roof support of a grain storage building, as provided by this utility model.

[0025] Figure 5 for Figure 1 A magnified view of a portion of point A.

[0026] The attached diagram shows the markings and corresponding component names:

[0027] 10-Base rod; 11-Base plate; 12-Formwork support keel; 13-Anti-bending rod; 20-Lifting ring; 21-Support rod; 30-Support plate; 31-Snap ring; 32-Inner plate; 33-Outer ring; 34-Structural beam; 40-Connector; 41-Connecting end; 42-Clamping end; 50-Telescopic support cylinder; 51-Flange; 60-Support column; 70-Covering formwork. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0031] Example

[0032] Please refer to Figures 1 to 5 As shown, this embodiment provides a roof formwork for grain storage buildings, including: a reference rod 10, which is vertically arranged, with a base plate 11 coaxially connected to its top end. The base plate 11 is hinged with multiple formwork support ribs 12, allowing the ribs 12 to swing along a vertical plane. The ribs 12 extend radially along the base plate 11 and are bent towards the bottom end of the reference rod 10 to form an arc-shaped strip. The second component includes a lifting ring 20, which is hinged with multiple support rods 21. The support rods 21 are connected to... The formwork support keel 12 is one-to-one and is hinged to the middle of the corresponding formwork support keel 12; the third includes a support plate 30, which is coaxially slidably fitted onto the reference rod 10. When the middle of the support plate 30 abuts against the bottom end of the lifting ring 20, the edge of the support plate 30 abuts against the free end of the formwork support keel 12; the fourth includes a plurality of connectors 40, which are one-to-one with the formwork support keel 12. The free end of the formwork support keel 12 is detachably and fixedly connected to the edge of the support plate 30 through the corresponding connector 40.

[0033] The roof formwork for grain storage buildings disclosed in this embodiment forms a rapid-lifting structure by setting up a reference rod 10, a base plate 11, formwork keel 12, a lifting ring 20, and a support rod 21. By pushing the lifting ring 20 upward along the reference rod 10, the formwork keel 12 can be gradually lifted by the support rod 21, so that all the formwork keels 12 are simultaneously unfolded, thereby forming a hemispherical or near-hemispherical top surface of all the formwork keels 12 (the length and curvature of the formwork keel 12 are designed according to requirements). Based on this, by setting up a support plate 30, the free movement of the lifting ring 20 and the formwork keel 12 is controlled by the center and the edge respectively. The formwork is supported at the ends. By setting the connector 40, the free end of the formwork keel 12 is fixedly connected to the edge of the support plate 30, thereby converting the gravity of the formwork keel 12 into the radial pressure of the support plate 30. Thus, the support plate 30 effectively supports the formwork keel 12 and provides longitudinal structural support for the lifting ring 20, forming structural supports from the middle and the edges to maintain structural stability. Through the cooperation of the above features, the roof formwork for grain storage buildings can effectively solve the problem of low construction efficiency of hemispherical and near-hemispherical roofs while ensuring shape, structural performance and support performance.

[0034] To further improve the structural performance of the formwork support keel 12, an anti-bending rod 13 is connected between the two ends of the formwork support keel 12; the end of the support rod 21 away from the lifting ring 20 is hinged to the middle of the corresponding anti-bending rod 13.

[0035] With the above setup, the two ends of the formwork support keel 12 are pulled by the two ends of the anti-bending rod 13 to avoid unnecessary bending, thereby improving its bending resistance.

[0036] To accommodate the construction needs of roofs with different shapes, the anti-bending rod 13 is a threaded telescopic rod; the formwork support keel 12 is a rigid elastic component, or the formwork support keel 12 is a rigid component, and the formwork support keel 12 includes multiple sets, each set of the formwork support keel 12 having a different curvature and length.

[0037] Through the above settings, the formwork support keel 12 can be made into a rigid elastic component, and the bending degree of the formwork support keel 12 can be adjusted by the extension and retraction of the anti-bending rod 13, thereby adjusting the shape of the hemispherical surface formed; or the formwork support keel 12 can be made replaceable, and can be replaced with formwork support keel 12 sets of different lengths and bending degrees as needed to meet the construction requirements of roofs of different shapes.

[0038] To further explain the connection structure of the support plate 30 and the free end of the formwork keel 12, and the specific structure of the connector 40, the top surface of the support plate 30 is provided with a retaining ring 31 protruding upwards, and the retaining ring 31 is located near the edge of the support plate 30; the connector 40 is provided with a connecting end 41 and a clamping end 42; the connecting end 41 is hinged to the corresponding free end of the formwork keel 12; the clamping end 42 is provided with an inner clamping wall and an outer clamping wall arranged in parallel and spaced apart, and the distance between the inner clamping wall and the outer clamping wall matches the thickness of the retaining ring 31; the clamping end 42 is used to detachably clamp the retaining ring 31 so that the inner clamping wall and the outer clamping wall are respectively attached to the inner wall and the outer wall of the retaining ring 31, and the inner clamping wall and the outer clamping wall are respectively fixedly connected to the inner wall and the outer wall of the retaining ring 31 by bolts.

[0039] By implementing the above settings, the stress distribution at the connection point is made more rational while ensuring connection performance, thereby improving structural performance.

[0040] To further explain the specific structure of the support plate 30, the support plate 30 includes an inner plate 32 and an outer ring 33. The inner plate 32 and the outer ring 33 are coaxial and coplanarly fitted together and are fixedly connected by multiple structural beams 34, which are arranged radially along the outer ring 33.

[0041] Through the above settings, the weight of the support plate 30 is significantly reduced while ensuring structural and connection performance, making it easier to assemble.

[0042] To further support the lifting ring 20, a telescopic support cylinder 50 is detachably and coaxially fitted on the lower part of the reference rod 10. A flange 51 is coaxially connected to the top of the telescopic support cylinder 50. The flange 51 is detachably and fixedly connected to the bottom end of the inner plate 32 by multiple bolts.

[0043] Preferably, in order to improve the support effect and telescopic performance, the telescopic support cylinder 50 is a hydraulic telescopic cylinder.

[0044] To further support the support plate 30 and improve its structural stability while dispersing the stress on it, the roof formwork for the grain storage building also includes multiple support columns 60. All the support columns 60 are arranged in a ring at uniform intervals, and the top of the support column 60 is detachably and fixedly connected to the bottom surface of the outer ring 33.

[0045] Preferably, in order to improve the supporting effect and telescopic performance of the support column 60, the support column 60 is a hydraulic telescopic column.

[0046] To further optimize the top formwork for subsequent pouring, the roof formwork for the grain storage building also includes multiple cover formwork 70s. The cover formwork 70s are laid on the top surface of two adjacent formwork keels 12 to cover the top surface of all the formwork keels 12 to form a spherical formwork layer.

[0047] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roof formwork for a grain storage building, characterised in that, include: A reference rod (10) is vertically arranged. A base plate (11) is coaxially connected to the top of the reference rod (10). The base plate (11) is hinged with multiple support keels (12) so that the support keels (12) can swing along the vertical plane. The support keels (12) extend radially along the base plate (11). The support keels (12) bend toward the bottom end of the reference rod (10) to form an arc-shaped strip. The lifting ring (20) has multiple support rods (21) hinged on its shaft. The support rods (21) correspond one-to-one with the formwork keel (12) and are hinged to the middle of the corresponding formwork keel (12). Support plate (30), the support plate (30) is coaxially slidably fitted on the reference rod (10), when the middle part of the support plate (30) abuts against the bottom end of the lifting ring (20), the edge of the support plate (30) abuts against the free end of the formwork keel (12); Multiple connectors (40) are provided, each corresponding to a formwork support keel (12). The free end of the formwork support keel (12) is detachably and fixedly connected to the edge of the support plate (30) through the corresponding connector (40).

2. The roof formwork for a grain storage building according to claim 1, characterised in that, The two ends of the formwork support keel (12) are connected by anti-bending rods (13). The end of the support rod (21) away from the lifting ring (20) is hinged to the middle of the corresponding anti-bending rod (13).

3. The roof formwork for a grain storage building according to claim 2, characterised in that, The bending rod (13) is a threaded telescopic rod; The formwork support keel (12) is a rigid elastic component, or... The formwork support keel (12) is a rigid component. The formwork support keel (12) includes multiple groups, and the curvature and length of each group of formwork support keels (12) are different.

4. The roof formwork for a grain storage building according to claim 1, wherein The top surface of the support plate (30) is provided with a retaining ring (31) protruding upwards, and the retaining ring (31) is disposed near the edge of the support plate (30); The connector (40) is provided with a connecting end (41) and a clamping end (42). The connecting end (41) is hinged to the free end of the corresponding support keel (12); The clamping end (42) is provided with an inner clamping wall and an outer clamping wall that are arranged in parallel and spaced apart. The distance between the inner clamping wall and the outer clamping wall matches the thickness of the retaining ring (31). The clamping end (42) is used to detachably clamp the retaining ring (31) so that the inner clamping wall and the outer clamping wall are respectively attached to the inner wall and the outer wall of the retaining ring (31). The inner clamping wall and the outer clamping wall are respectively fixedly connected to the inner wall and the outer wall of the retaining ring (31) by bolts.

5. The roof formwork for a grain storage building according to claim 1, wherein The support plate (30) includes an inner plate (32) and an outer ring (33). The inner plate (32) and the outer ring (33) are coaxial and coplanarly fitted and are fixedly connected by multiple structural beams (34). The structural beams (34) are arranged radially along the outer ring (33).

6. The roof formwork for a grain storage building according to claim 5, wherein, The lower part of the reference rod (10) is detachably coaxially fitted with a telescopic support cylinder (50), and the top of the telescopic support cylinder (50) is coaxially connected with a flange (51). The flange (51) is detachably fixed to the bottom of the inner plate (32) by multiple bolts.

7. The roof formwork for a grain storage building according to claim 6, characterised in that, The telescopic supporting cylinder (50) is a hydraulic telescopic cylinder.

8. The roof formwork for a grain storage building according to claim 6, wherein, A plurality of supporting columns (60) are also included, all of which are arranged in a ring shape and uniformly spaced, and the top ends of the supporting columns (60) are detachably fixedly connected to the bottom surface of the outer ring (33).

9. The roof formwork for a grain storage building according to claim 8, characterised in that, The supporting columns (60) are hydraulic telescopic columns.

10. The roof formwork for a grain storage building according to claim 1, wherein, A plurality of formwork covering plates (70) are also included, which are used to be laid on the top surfaces of two adjacent formwork joists (12) to cover the top surfaces of all the formwork joists (12) to form a spherical surface mold layer.

Images