A prefabricated vented ground slot formwork arrangement

Abstract

The utility model relates to a prefabricated ventilation ground groove template device, the prefabricated ventilation ground groove template device includes two side templates, two end templates, bottom template and a plurality of bolts and nuts, the side template end is equipped with the connecting plate alpha that resists with the side edge of end part board, the bolt passes through the connecting plate alpha, end template and nut screw thread connection, the bottom template middle part is equipped with the rectangular convexity that goes up, and two side edges respectively resist with the inner wall of side template, the bottom template end is equipped with the connecting plate beta that extends downward, the bolt passes through the connecting plate beta, end template and nut screw thread connection, the utility model provides a prefabricated ventilation ground groove template device that can be assembled on the spot, prefabricated on the spot, the distance of transfer is made to supplement at any time, reduces the cost, guarantees the construction period.

Description

Technical Field

[0001] This utility model relates to the technical field of ventilation trench construction, and in particular to a prefabricated ventilation trench template device. Background Technology

[0002] Ventilation troughs are fixed ventilation systems installed below the floor of grain silos, primarily used for ventilation and cooling during grain storage to ensure grain quality. Generally, ventilation troughs consist of main and branch air ducts, and are made of materials such as reinforced concrete and metal. Reinforced concrete is the most commonly used material. Precast concrete ventilation troughs are typically manufactured in a factory and then transported to the project site for assembly. Compared to cast-in-place ventilation troughs, precast troughs allow for better quality control. However, precast ventilation troughs are generally U-shaped, making them prone to structural damage during transportation. If too many precast ventilation troughs are damaged, insufficient for on-site construction, requiring reordering from the factory, increasing material costs, and delaying the construction schedule. Current technology lacks a ventilation trough prefabrication formwork device that can reduce transportation distances and the risk of structural damage during transport. Furthermore, it lacks the ability to replenish damaged ventilation troughs as needed, ensuring timely completion of the construction task within the project timeline. Utility Model Content

[0003] The purpose of this utility model is to solve the above problems and provide a prefabricated ventilation trench template device.

[0004] The technical solution of this utility model is as follows: A prefabricated ventilation trench formwork device includes two side templates, two end templates, a bottom template, and several bolts and nuts; the end of the side template is provided with a connecting plate A that abuts against the side edge of the end plate; the bolts pass through the connecting plate A, the end template, and are threadedly connected to the nuts; the bottom template has an upward rectangular protrusion in the middle, and the two side edges abut against the inner wall of the side template respectively; the end of the bottom template is provided with a downward extending connecting plate B; the bolts pass through the connecting plate B, the end template, and are threadedly connected to the nuts; the side templates, end templates, and bottom template constitute a casting cavity with an open top; the casting cavity is generally n-shaped, which is an inverted state of the shape of a prefabricated ventilation trench, and is used for casting the prefabricated ventilation trench; the prefabricated ventilation trench formwork device is a detachable structure that can be assembled on-site at the project site, reducing the transportation distance of the prefabricated ventilation trench formwork device and allowing for timely replenishment, thereby reducing costs and ensuring the construction period.

[0005] Preferably, the bottom template is also provided with a first step; the first step is set close to the bottom edge of the rectangular protrusion, so that the opening of the prefabricated ventilation trench forms a cover plate step, so as to facilitate the laying of the cover plate.

[0006] Furthermore, the bottom formwork is also provided with a second step; the second step is set right next to the bottom edge of the first step, increasing the contact area with the side formwork and ensuring the sealing effect at the bottom side edge of the casting cavity.

[0007] Preferably, the outer wall of the side formwork is provided with an outwardly extending reinforcing mesh to improve the support capacity of the side formwork.

[0008] Furthermore, there are several side templates; bolts pass through the reinforcing mesh end walls of adjacent side templates and are threadedly connected to nuts; this makes the side templates easier to transport.

[0009] Furthermore, the end walls at both ends of the reinforced mesh are symmetrically provided with connection holes that match the bolts, facilitating on-site assembly.

[0010] Preferably, the end formwork is provided with reinforcing bar through holes; the distribution area of ​​the reinforcing bar through holes is located above the bottom formwork; the precast ventilation trench includes concrete, a reinforcing cage and connecting reinforcing bars; the connecting reinforcing bars are horizontally arranged, connected to the reinforcing cage, and pass through the end face of the precast ventilation trench for connecting adjacent precast ventilation trenches; the connecting reinforcing bars pass through the reinforcing bar through holes; the connecting reinforcing bars can be formed together with the precast ventilation trench.

[0011] The beneficial effects of this utility model are as follows: The prefabricated ventilation trench template device of this utility model has the following advantages: (1) This utility model provides a prefabricated ventilation trench template device that can be assembled and prefabricated on site, with a long transportation distance and can be replenished at any time, reducing costs and ensuring the construction period; (2) The first step of this utility model forms a cover plate step at the opening of the precast ventilation trench, so as to facilitate the laying of the cover plate. The second step increases the contact area with the side formwork, ensuring the sealing effect at the bottom side edge of the casting cavity. Attached Figure Description

[0012] Figure 1 This is a front view of a prefabricated ventilation trench template device according to this utility model; Figure 2 yes Figure 1 AA section view; Figure 3 yes Figure 2 BB cross-sectional view; Figure 4 This is a perspective view of the prefabricated ventilation trench template device of this utility model in use; In the diagram: 01. Reinforcing cage, 02. Connecting reinforcing bars, 1. Side formwork, 11. Connecting plate A, 12. Reinforcing mesh, 121. Connecting hole, 2. End formwork, 21. Reinforcing bar through hole, 31. Rectangular protrusion, 32. Connecting plate B, 33. First step, 34. Second step, 4. Bolt, 5. Nut. Detailed Implementation

[0013] Example 1: See Figure 1-4 A prefabricated ventilation trench formwork device includes two side templates 1, two end templates 2, a bottom template, and several bolts 4 and nuts 5. The side templates 1 have connecting plates A11 at their ends that abut against the side edges of the end plates. Bolts 4 pass through connecting plates A11, end templates 2, and are threadedly connected to nuts 5. The bottom template has an upward-facing rectangular protrusion 31 in the middle, with its two side edges abutting against the inner walls of the side templates 1. The bottom template has a downward-extending connecting plate B32 at its end. Bolts 4 pass through connecting plate B32, end templates 2, and are threadedly connected to nuts 5. The side templates 1, end templates 2, and bottom template form a casting cavity with an open top. This casting cavity is generally n-shaped, an inverted form of the prefabricated ventilation trench, used for casting the prefabricated ventilation trench. This prefabricated ventilation trench formwork device is a detachable structure, allowing for on-site assembly and casting, reducing the transport distance of the prefabricated ventilation trench formwork device, enabling timely replenishment, lowering costs, and ensuring the construction period.

[0014] Compared with the existing technology, this utility model provides a prefabricated ventilation trench template device that can be assembled and prefabricated on site, with long transportation distances and timely replenishment, reducing costs and ensuring the construction period.

[0015] The bottom template is also provided with a first step 33; the first step 33 is set close to the bottom edge of the rectangular protrusion 31, so that the opening of the prefabricated ventilation trench forms a cover plate step, so as to facilitate the laying of the cover plate.

[0016] The bottom template is also provided with a second step 34; the second step 34 is set close to the bottom edge of the first step 33, increasing the contact area with the side template 1 and ensuring the sealing effect at the bottom side edge of the casting cavity.

[0017] The outer wall of the side formwork 1 is provided with an outwardly extending reinforcing mesh 12 to improve the support capacity of the side formwork 1.

[0018] The end formwork 2 is provided with reinforcing bar through holes 21; the distribution area of ​​the reinforcing bar through holes 21 is located above the bottom formwork; the precast ventilation trench includes concrete, a reinforcing cage 01 and connecting reinforcing bars 02; the connecting reinforcing bars 02 are horizontally arranged, connected to the reinforcing cage 01, and pass through the end face of the precast ventilation trench for connecting adjacent precast ventilation trenches; the connecting reinforcing bars 02 pass through the reinforcing bar through holes 21; the connecting reinforcing bars 02 can be formed together with the precast ventilation trench.

[0019] The working principle of this embodiment: Side template 1, end template 2, and bottom template constitute a casting cavity with an open top; the casting cavity is generally n-shaped, an inverted state of the prefabricated ventilation trench shape, used for casting the prefabricated ventilation trench; the prefabricated ventilation trench template device is a detachable structure, which can be assembled on-site, reducing the transportation distance of the prefabricated ventilation trench template device and allowing for timely replenishment, thus reducing costs and ensuring the construction period. The first step 33 forms a cover plate step at the opening of the prefabricated ventilation trench, facilitating the laying of the cover plate. The second step 34 increases the contact area with the side template 1, ensuring the sealing effect at the bottom side edge of the casting cavity; the reinforcing mesh 12 improves the support capacity of the side template 1; the connecting steel bar 02 passes through the steel bar through hole 21; the connecting steel bar 02 can be formed together with the prefabricated ventilation trench.

[0020] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that there are several side templates 1; the bolts 4 pass through the end wall of the reinforcing mesh 12 of the adjacent side templates 1 and are threadedly connected to the nuts 5; this makes the side templates 1 easier to transport. There are 2 side templates 1 in this example.

[0021] The end walls of the reinforced mesh 12 are symmetrically provided with connection holes 121 that match the bolts 4, which facilitates on-site assembly.

Claims

1. A prefabricated ventilation trench template device, characterized in that, It includes two side templates, two end templates, a bottom template, and several bolts and nuts; the end of the side template is provided with a connecting plate A that abuts against the side edge of the end plate; the bolts pass through the connecting plate A, the end template, and are threadedly connected to the nuts; the bottom template has an upward rectangular protrusion in the middle, and its two sides abut against the inner wall of the side template respectively; the end of the bottom template is provided with a downward extending connecting plate B; the bolts pass through the connecting plate B, the end template, and are threadedly connected to the nuts.

2. The prefabricated ventilation trench template device according to claim 1, characterized in that: The bottom template also has a first step; the first step is set right next to the bottom edge of the rectangular protrusion.

3. The prefabricated ventilation trench template device according to claim 2, characterized in that: The bottom template also has a second step; the second step is set right next to the bottom edge of the first step.

4. The prefabricated ventilation trench template device according to claim 1, characterized in that: The outer wall of the side formwork is provided with an outwardly extending reinforcing mesh.

5. A prefabricated ventilation trench template device according to claim 4, characterized in that: There are several side templates; bolts pass through the reinforcing mesh end walls of adjacent side templates and are threadedly connected to nuts.

6. A prefabricated ventilation trench template device according to claim 4, characterized in that: The end walls at both ends of the reinforced mesh are symmetrically provided with connection holes that match the bolts.

7. The prefabricated ventilation trench template device according to claim 1, characterized in that: The end formwork has through holes for reinforcing bars; the distribution area of ​​these through holes is located above the bottom formwork.

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