High-flow ventilation trench connection node template device

Abstract

The utility model relates to a kind of high flow's ventilation ground channel connecting node formwork device;The high flow's ventilation ground channel connecting node formwork device includes vertical plate group, brick mould and support rod;Vertical plate group includes metal plate A, metal plate B, hinged column A, hinged column B, hinged shaft;Metal plate A one end fixed hinged column A, the other end and wind channel section inner wall are pasted;Metal plate B one end fixed hinged column B, the other end and wind channel section inner wall are pasted;Brick mould is set outside node, two ends and wind channel section outer wall are pasted;Hinged shaft passes through hinged column A, hinged column B;Support rod one end and metal plate A / metal plate B are resisted, the other end and the wind channel section inner wall of opposite side are resisted.The utility model provides a kind of high flow's ventilation ground channel connecting node formwork capable of being applicable to ventilation ground channel connecting node simultaneously, reduces construction site management difficulty, saves construction cost.

Description

Technical Field

[0001] This utility model relates to the technical field of shallow circular silo ventilation trench construction, and in particular to a high-flow-rate ventilation trench connection node template device. Background Technology

[0002] Ventilation trenches are fixed-trough-shaped ventilation ducts constructed below the floor of a grain silo, primarily used for overall ventilation, cooling, dehumidification, conditioning, and fumigation. Shallow circular silos are the most common type of grain silo. To address the ventilation requirements of shallow circular silos, a precision ventilation system for grain silos has been proposed, as described in patent CN222869466U. This system includes multiple ventilation openings and multiple concentric ventilation ducts located at the bottom of the circular silo, comprising four ducts arranged from the outside in: Ventilation Duct 1, Ventilation Duct 2, Ventilation Duct 3, and Ventilation Duct 4. These ducts are regular polygons of varying sizes. The ventilation openings are connected to their respective ducts via a main duct. Construction of the ventilation trench typically involves assembling precast concrete duct sections to form the main body. Connecting joints are then poured between adjacent duct sections to integrate them into a single unit. These ventilation trench connection nodes include cross-shaped connection nodes where the main air duct and the ventilation duct intersect, large corner connection nodes at the corners of the ventilation ducts, and straight connection nodes for straight-line duct sections. Multiple types of casting templates are required for casting. These casting templates are not interchangeable, have poor flexibility, are not conducive to on-site construction management, and result in high construction costs. Utility Model Content

[0003] The purpose of this utility model is to solve the above problems and provide a high-flow ventilation trench connection node template device.

[0004] The technical solution of this utility model is as follows: A high-flow ventilation trench connection node template device includes a vertical plate assembly, a brick mold, and a support rod; the vertical plate assembly includes metal plate A, metal plate B, hinged column A, hinged column B, and a hinge shaft; one end of metal plate A is fixed to hinged column A, and the other end is attached to the inner wall of the air duct section; one end of metal plate B is fixed to hinged column B, and the other end is attached to the inner wall of the air duct section; the brick mold is set on the outside of the node, with both ends attached to the outer wall of the air duct section, providing formwork for the bottom plate and the outer wall of the side wall of the connection node; the hinge shaft passes through hinged column A and hinged column B to realize the hinge between metal plate A and metal plate B; metal plate A can be horizontally deflected to both sides relative to metal plate B to adapt to the tilt angle of adjacent air duct sections at the connection node; one end of the support rod abuts against metal plate A / metal plate B, and the other end abuts against the inner wall of the air duct section on the opposite side, providing formwork for the inner wall of the side wall of the connection node.

[0005] Preferably, the lengths of metal plate A and metal plate B are equivalent; the splicing lengths of hinged column A and hinged column B are equivalent to the length of metal plate A, which can ensure the flatness of the sidewall after the connection node is cast.

[0006] Furthermore, the thickness of hinged column A is comparable to the thickness of metal plate A; the thickness of hinged column B is comparable to the thickness of metal plate B; and the flatness of the connection node after casting is further improved.

[0007] Preferably, rubber pads are installed at both ends of the support rod to increase the support stability of the support rod for the vertical plate assembly.

[0008] Furthermore, the rubber pad is provided with an outer ring that matches the end of the support rod; the end of the support rod is inserted into the outer ring; the outer ring increases the installation stability of the rubber pad.

[0009] Furthermore, the support rod includes a threaded rod and a threaded tube; the outer end of the threaded rod is inserted into the outer ring, and the inner end is threadedly engaged with the inner end of the threaded tube; the outer end of the threaded tube is inserted into the outer ring; the support rod can be extended or shortened to improve the fluidity of the high-flow ventilation trench connection node template device.

[0010] Furthermore, the rubber pad has a protrusion at its center that matches the inner wall of the threaded tube; this protrusion is inserted into the threaded tube to prevent the rubber pad from coming out of the threaded tube.

[0011] Furthermore, the threaded rod has parallel operating planes on its sidewalls; the inner end of the threaded tube has a hexagonal head on its outer wall; through these operating planes and hexagonal heads, the threaded rod and threaded tube can be rotated relative to each other, thus controlling the extension and retraction of the support rod.

[0012] Preferably, the support rods include support rod A and support rod B; support rod A is set above the air duct section to ensure a stable connection between the vertical plate assembly and the air duct section; support rod B is set above the connection node to ensure the stability of the formwork support on the inner wall of the side wall of the connection node.

[0013] Preferably, there are several support rods evenly distributed vertically to ensure the support stability of the support rods.

[0014] Preferably, the high-flow ventilation trench connection node template device also includes a plastic strip; the plastic strip covers hinged column A and hinged column B, and connects with metal plate A and metal plate B, increasing the formwork airtightness of the high-flow ventilation trench connection node template device.

[0015] The beneficial effects of this utility model are as follows: The high-flow-rate ventilation trench connection node template device of this utility model has the following advantages: (1) This utility model provides a high-turnover ventilation trench connection node template that can be applied to ventilation trench connection nodes at the same time, reducing the difficulty of construction site management and saving construction costs; (2) The rubber pad of this utility model can increase the support stability of the support rod for the vertical plate assembly. Attached Figure Description

[0016] Figure 1 This is a top view of the high-flow ventilation trench connection node template device of this utility model when it is installed at a cross-shaped connection node; Figure 2 yes Figure 1 AA section view; Figure 3 yes Figure 2 A magnified view of the I-shaped image; Figure 4 yes Figure 2 BB section view; Figure 5 yes Figure 4 II magnified view; Figure 6 This is a top view of the high-flow ventilation trench connection node template device of this utility model when it is installed at a large corner connection node; Figure 7 yes Figure 6 CC section view; Figure 8 yes Figure 7 III magnified view; In the diagram: 01. Air duct section, 02. Node, 11. Metal plate A, 12. Metal plate B, 13. Hinge column A, 14. Hinge column B, 15. Hinge shaft, 2. Brick mold, 31. Rubber pad, 311. Outer ring, 312. Protrusion, 32. Threaded rod, 321. Operating plane, 33. Threaded pipe, 331. Hexagonal head, 34. Support rod A, 35. Support rod B. Detailed Implementation

[0017] Example 1: See Figure 1-8 See Figure 1-8 A high-flow ventilation trench connection node template device includes a vertical plate assembly, a brick mold 2, and support rods; the vertical plate assembly includes a metal plate A 11, a metal plate B 12, a hinged column A 13, a hinged column B 14, and a hinge shaft 15; one end of the metal plate A 11 is fixed to the hinged column A 13, and the other end is attached to the inner wall of the duct section 01; one end of the metal plate B 12 is fixed to the hinged column B 14, and the other end is attached to the inner wall of the duct section 01; the brick mold 2 is set on the outside of the node 02, and both ends are attached to the outer wall of the duct section 01, for... The bottom plate and outer side wall of the connecting node 02 are supported by formwork; the hinge shaft 15 passes through the hinge column A 13 and hinge column B 14 to realize the hinge between metal plate A 11 and metal plate B 12; metal plate A 11 can be horizontally deflected to both sides relative to metal plate B 12 to adapt to the tilt angle of the adjacent air duct section 01 at the connecting node 02; one end of the support rod abuts against metal plate A 11 / metal plate B 12, and the other end abuts against the inner wall of the air duct section 01 on the opposite side to support the inner wall of the connecting node 02.

[0018] Compared with the prior art, this utility model provides a high-turnover ventilation trench connection node template that can be applied to ventilation trench connection node 02, reducing the difficulty of construction site management and saving construction costs.

[0019] The lengths of metal plate A 11 and metal plate B 12 are equivalent; the splicing lengths of hinged column A 13 and hinged column B 14 are equivalent to the length of metal plate A 11, which can ensure the flatness of the side wall after the connection node 02 is cast.

[0020] The thickness of hinged column A13 is comparable to that of metal plate A11; the thickness of hinged column B14 is comparable to that of metal plate B12; the flatness of the connection node 02 after casting is further improved.

[0021] Rubber pads 31 are installed at both ends of the support rod to increase the support stability of the support rod for the vertical plate assembly.

[0022] The rubber pad 31 is provided with an outer ring 311 that matches the end of the support rod; the end of the support rod is inserted into the outer ring 311; the outer ring 311 increases the installation stability of the rubber pad 31.

[0023] The support rod includes a threaded rod 32 and a threaded tube 33; the outer end of the threaded rod 32 is inserted into the outer ring 311, and the inner end is threadedly engaged with the inner end of the threaded tube 33; the outer end of the threaded tube 33 is inserted into the outer ring 311; the support rod can be extended or shortened to improve the fluidity of the high-flow ventilation trench connection node template device.

[0024] The threaded rod 32 has parallel operating planes 321 on its side wall; the inner end of the threaded tube 33 has a hexagonal head 331 on its outer wall; the operating plane 321 and the hexagonal head 331 facilitate the relative rotation of the threaded rod 32 and the threaded tube 33, thereby controlling the extension and retraction of the support rod.

[0025] The support rods include support rod A 34 and support rod B 35; support rod A 34 is set above the air duct section 01 to ensure a stable connection between the vertical plate assembly and the air duct section 01; support rod B 35 is set above the connection node 02 to ensure the stability of the formwork support on the inner wall of the side wall of the connection node 02.

[0026] There are several vertically evenly distributed support rods to ensure the stability of the support.

[0027] Each air duct section 01 includes a base plate and a side plate; the two base plates and side plates are integrally formed to form a U-shaped structure; the air duct sections 01 are used to assemble the main structure of the ventilation duct and the main air duct; the gap between adjacent air duct sections 01 is the ventilation trench connection node 02. The ventilation trench connection node 02 includes a cross intersection connection node 02 where the main air duct and the ventilation duct intersect, a large corner connection node 02 at the corner of the ventilation duct, and a straight connection node 02 for the air duct sections 01 arranged in a straight line; The usage process of this embodiment includes the following steps: ① External formwork was installed at the connection node 02 of the ventilation trench, and preliminary pouring was carried out. A brick mold 2 is set outside the ventilation trench connection node 02; the brick mold 2 abuts against the outer wall of the adjacent air duct section 01; a steel cage is set in the area below the bottom plate at the connection node 02, and the steel cage is connected to the air duct section 01 using transverse steel bars; pour concrete towards the center of the connection node 02 until the top surface of the concrete is flush with the top surface of the bottom plate. ② Curing and shaping of the initial pouring, until the concrete reaches a certain strength. ③ Installation of the formwork device for the connection node of the ventilation trench Use an appropriate number of vertical plate assemblies and support rods; the same vertical plate assembly is set on the same side of the ventilation duct connection node 02; the side of metal plate A 11 is attached to the inner wall of the side wall of duct section 01, and the bottom surface is abutted against the top surface of the bottom plate of duct section 01; the side of metal plate B 12 is attached to the inner wall of the side wall of the adjacent duct section 01, and the bottom surface is abutted against the top surface of the bottom plate of the adjacent duct section 01; metal plates A 11 and B 12 are deflected according to the direction of the spliced ​​ventilation duct / main duct through hinged columns A 13 and B 14; use support rods to support the vertical... Support the slab assembly; one end of the support rod abuts against the metal plate A 11 / metal plate B 12 on one side of the ventilation trench connection node 02, and the other end of the support rod abuts against the inner wall of the side plate / metal plate A 11 / metal plate B 12 on one side of the ventilation trench connection node 02, completing the formwork for secondary pouring; a pouring cavity is formed between the vertical slab assembly and the brick mold 2; the bottom of the pouring cavity is sealed by the initially poured concrete; a steel cage is also set in the pouring cavity, and the steel cage is connected to the side plate of the air duct section 01 by horizontal steel bars; ④ Pouring again Pour concrete into the cavity; cure the poured concrete to shape it. ⑤ Demolding and Transfer Once the poured concrete has reached a certain strength, remove the support rods and take away the vertical slab assembly.

[0028] See Figure 1 Four vertical plate groups are used; after the metal plate A 11 and metal plate B 12 of each vertical plate group are deflected to 90°, they are stuck at the corner of the cross-shaped connection node 02, and then supported by a support rod. See Figure 6 Two vertical plate assemblies are used; metal plate A 11 and metal plate B 12 are respectively abutted against the inner wall of the side plate of the adjacent air duct section 01; metal plate A 11 and metal plate B 12 of each vertical plate assembly are deflected to the same obtuse angle; and support rods are used for support.

[0029] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the rubber pad 31 has a protrusion 312 in the center that matches the inner wall of the threaded tube 33; the protrusion 312 is inserted into the threaded tube 33 and can prevent the rubber pad 31 from coming out of the threaded tube 33.

[0030] The high-flow ventilation trench connection node template device also includes a plastic strip; the plastic strip covers the hinged column A 13 and hinged column B 14, and connects with the metal plate A 11 and metal plate B 12, increasing the formwork airtightness of the high-flow ventilation trench connection node template device.

[0031] The usage process of this embodiment is basically the same as that of Embodiment 1; the similarities will not be repeated here. The difference is that in step ③, before using the support rod to support the vertical plate group, the hinge connection position of metal plate A 11 and metal plate B 12 is sealed with a plastic strip. This ensures the appearance after casting and prevents concrete from seeping into the hinge connection position and damaging the deflection function of metal plate A 11 and metal plate B 12.

Claims

1. A high-flow-rate ventilation trench connection node template device, characterized in that, It includes a vertical plate assembly, brick formwork, and support rods; the vertical plate assembly includes metal plate A, metal plate B, hinged column A, hinged column B, and hinge shaft; one end of metal plate A is fixed to hinged column A, and the other end is attached to the inner wall of the air duct section; one end of metal plate B is fixed to hinged column B, and the other end is attached to the inner wall of the air duct section; the brick formwork is set on the outside of the node, and both ends are attached to the outer wall of the air duct section; the hinge shaft passes through hinged column A and hinged column B; one end of the support rod abuts against metal plate A / metal plate B, and the other end abuts against the inner wall of the air duct section on the opposite side.

2. The high-flow-rate ventilation trench connection node template device according to claim 1, characterized in that: Metal plate A and metal plate B are of equal length; the splicing length of hinged column A and hinged column B is equal to the length of metal plate A.

3. The high-flow-rate ventilation trench connection node template device according to claim 2, characterized in that: The thickness of hinged column A is equivalent to the thickness of metal plate A; the thickness of hinged column B is equivalent to the thickness of metal plate B.

4. The high-flow-rate ventilation trench connection node template device according to claim 1, characterized in that: Rubber pads are installed at both ends of the support rod.

5. The high-flow-rate ventilation trench connection node template device according to claim 4, characterized in that: The rubber pad has an outer ring that matches the end of the support rod; the end of the support rod is inserted into the outer ring.

6. The high-flow-rate ventilation trench connection node template device according to claim 5, characterized in that: The support rod includes a threaded rod and a threaded tube; the outer end of the threaded rod is inserted into the outer ring, and the inner end is threadedly engaged with the inner end of the threaded tube; the outer end of the threaded tube is inserted into the outer ring.

7. The high-flow-rate ventilation trench connection node template device according to claim 1 or 6, characterized in that: The support rods include support rod A and support rod B; support rod A is installed above the air duct section; support rod B is installed above the connection node.

8. The high-flow-rate ventilation trench connection node template device according to claim 1, characterized in that: There are several support rods evenly distributed vertically.

9. The high-flow-rate ventilation trench connection node template device according to claim 1, characterized in that: It also includes a plastic strip; the plastic strip covers hinged post A and hinged post B, and is connected to metal plate A and metal plate B.

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