Large-volume concrete internal mold supporting device

Abstract

The utility model discloses a large-volume concrete internal mold supporting device which comprises a lower bottom plate, a supporting structure is arranged on the lower bottom plate, and an auxiliary supporting structure is arranged on the supporting structure. An anti-inclination structure is arranged between the supporting structure and the lower bottom plate; the supporting structure comprises an upper top plate, and bearing columns are arranged between the upper top plate and the lower bottom plate. The bearing column is composed of a height adjusting rod and a mounting column. The auxiliary supporting structure comprises an extension rod with one end installed on the upper portion of the installation column, the other end of the extension rod is rotationally provided with a connecting block, and the middle of the inclined supporting rod is rotationally connected with the connecting block through a bolt. The anti-inclination structure comprises a tension adjusting rod with one end installed on the lower portion of the installation column, a compression adjusting rod, a fixing notch fixedly formed in the lower bottom plate and a hook rod. Bearing columns with adjustable lengths are arranged and used for supporting prefabricated part inner molds with different heights; the bearing column is supported through the tension adjusting rod and the compression adjusting rod, and the supporting stability is guaranteed; the auxiliary supporting structures are arranged to support the corners, and the quality of the prefabricated concrete component is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of building equipment technology, specifically relating to a large-volume concrete inner formwork support device. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] To improve building standardization and reduce carbon emissions from construction, prefabricated construction has been vigorously promoted. Prefabricated building components are manufactured in factories using assembly line operations, resulting in a high degree of mechanization in prefabrication construction. Currently, the application of prefabricated concrete components is gradually expanding from civil engineering to underground transportation projects, such as underground roads and subway stations.

[0004] When underground transportation structures are constructed using prefabricated methods, the segmentation of the structure has a significant impact on the construction and stress distribution of the transportation structure. Currently, for the sake of construction convenience, underground transportation structures often adopt a large number of segmented designs, such as shield tunnels and prefabricated subway stations. However, excessive segmentation inevitably leads to a decrease in the overall integrity and waterproofing performance of the structure.

[0005] In response, some projects have begun to adopt the assembly construction of large-volume precast components with fewer sub-sections. However, these large-volume precast components are heavy, often exceeding 50 tons. This leads to deformation of the formwork during the pouring process, seriously threatening the pouring accuracy of the precast components. Furthermore, in underground transportation structures, precast components often have large spans, with significant deformation at the mid-span. Traditional internal formwork supports have the problems of being unable to adjust dimensions and being non-reusable.

[0006] To address this issue, patent CN211597714U discloses a building formwork support device, including a support pipe, a movable rod, a locking device, and a diagonal bracing structure, capable of adjusting the support height to support the formwork. However, this device cannot move freely, cannot change the support angle of the support structure, and lacks corner supports, thus failing to guarantee the quality after pouring.

[0007] Designing a convenient support device to provide reasonable support for the internal formwork of large-volume precast components is of great significance for improving the casting accuracy of large-volume precast components. Utility Model Content

[0008] To address the aforementioned problems, this utility model provides a large-volume concrete inner formwork support device, equipped with adjustable-length load-bearing columns to accommodate precast component inner formwork of varying heights. It also features slots that engage with semi-circular limiting plates, and multiple limiting plates at different positions on the bottom of the upper plate, allowing for adjustments to the support angle of the load-bearing columns. Tension and compression adjustment rods support the load-bearing columns at their predetermined angles, ensuring stability during operation. Extension rods and diagonal braces prevent significant deformation of edges and corners far from the support structure during load-bearing, thus protecting the quality of the precast concrete components. Multiple sets of wheels with matching guide rails are installed on the sides of the lower base plate for easy movement of the support device.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A large-volume concrete internal formwork support device includes a lower base plate, a support structure on the lower base plate, and an auxiliary support structure on the support structure; an anti-tilting structure is provided between the support structure and the lower base plate.

[0011] The supporting structure includes an upper top plate, and a load-bearing column is provided between the upper top plate and the lower bottom plate; the load-bearing column is composed of a height adjustment rod and a threaded connection between the mounting column and the mounting column.

[0012] The auxiliary support structure includes an extension rod with one end installed on the upper part of the mounting column, a connecting block rotatably installed at the other end of the extension rod, and the middle part of the diagonal brace is rotatably connected to the connecting block by bolts.

[0013] The anti-tilt structure includes a tension adjustment rod and a compression adjustment rod installed at one end of the mounting column, as well as a fixing slot and a hook rod fixedly installed on the bottom plate.

[0014] Preferably, each end of the diagonal brace has a connecting plate with multiple fixing holes.

[0015] Preferably, the height adjustment rod is rotatably connected to the slot at the top, and a tightening bolt is provided at the position where the height adjustment rod is rotatably connected to the slot; the mounting column is fixedly connected to the slot at the bottom; a limiting plate is fixed at each of the four corners of the top surface of the lower base plate, and multiple protruding limiting plates are fixed at each of the four corners of the bottom surface of the upper top plate.

[0016] Preferably, the limiting plate is a semi-circular plate; the limiting plate is inserted into the slot and connected by bolts.

[0017] Preferably, two first mounting grooves are provided on the inner side of the lower part of the mounting post, which follows the length direction of the limiting plate; a second mounting groove is provided on the outer side of the upper part of the mounting post opposite to the surface where the first mounting grooves are located.

[0018] Preferably, the pressure-bearing adjusting rod is bolted to the lower first mounting groove, and the tension-bearing adjusting rod is bolted to the upper first mounting groove; the extension rod is bolted to the load-bearing column through the second mounting groove.

[0019] Preferably, the fixing slot is disposed between the hook rod and the limiting plate, and the fixing slot is circular with its center located on the extension line of the length direction of the limiting plate.

[0020] Preferably, the extension rod, the pressure adjusting rod, and the tension adjusting rod are all composed of threaded rods and nut rods, the difference being that the tension adjusting rod has a hook rotatably provided at the end of the threaded rod, the hook being used to hook the hook rod; the extension rod has a connecting block rotatably provided at the end of the threaded rod; and the pressure adjusting rod has its threaded rod inserted into a fixing slot for fixation.

[0021] Preferably, the lower base plate is further provided with a movable structure; the movable structure includes two concave guide rails and multiple sets of wheels that match the guide rails; the multiple sets of wheels are rotatably connected to the side of the lower base plate, and the distance between two guide rails is equal to the distance between two wheels in the same set.

[0022] Preferably, the movable structure further includes a wheel rotation control lever, which is embedded in the wheel and can be pulled out and retracted.

[0023] Compared with the prior art, the advantages and positive effects of this utility model are:

[0024] This invention employs an adjustable-length load-bearing column to accommodate precast component inner formwork of varying heights. Furthermore, slots are provided to cooperate with semi-circular limiting plates, and multiple limiting plates at different positions are installed at the bottom of the upper top plate, allowing the support angle of the load-bearing column to be adjusted. Tension and compression adjustment rods support the load-bearing column at the determined support angle, ensuring the stability of the support device during operation. Extension rods and diagonal braces are included to prevent significant deformation of edges and corners far from the support structure during load-bearing, thus protecting the quality of the precast concrete components. Multiple sets of wheels are installed on the side of the lower base plate, along with matching guide rails, facilitating the movement of the support device. Attached Figure Description

[0025] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0026] Figure 1 This is a three-dimensional front view of the support device according to an embodiment of the present invention;

[0027] Figure 2 This is a right view of the support device according to an embodiment of the present utility model;

[0028] Figure 3 This is a three-dimensional schematic diagram of the load-bearing column according to an embodiment of the present utility model;

[0029] Figure 4 This is a three-dimensional schematic diagram of the upper top plate according to an embodiment of the present utility model;

[0030] Figure 5 This is a three-dimensional schematic diagram of the anti-tilting structure according to an embodiment of the present invention;

[0031] Figure 6 This is a three-dimensional schematic diagram of the auxiliary support structure according to an embodiment of the present invention;

[0032] Figure 7 This is a right view of the auxiliary support structure in an embodiment of this utility model when it is in use;

[0033] Figure 8 This is a three-dimensional schematic diagram of the movable structure according to an embodiment of the present invention;

[0034] In the picture:

[0035] 1. Bottom plate; 2. Bolt; 3. Mounting column; 4. Height adjustment rod; 5. Slot; 6. Limiting plate; 7. Top plate; 8. First mounting slot; 9. Pressure adjustment rod; 10. Fixing slot; 11. Tension adjustment rod; 12. Hook; 13. Hook rod; 14. Extension rod; 15. Diagonal brace; 16. Connecting plate; 17. Inner template; 18. Fixing hole; 19. Connecting block; 20. Threaded rod; 21. Nut rod; 22. Second mounting slot; 23. Wheel; 24. Wheel rotation control rod; 25. Guide rail; 26. Tightening bolt. Detailed Implementation

[0036] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0037] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a large-volume concrete inner formwork support device, such as... Figure 1 As shown, it includes a lower base plate 1, on which a support structure is provided for supporting the inner formwork 17 of the large-volume precast component; a movable structure is also provided on the lower base plate 1 for adjusting the relative position of the lower base plate 1; an auxiliary support structure is also provided on the support structure for supporting the corners of the inner formwork 17 of the large-volume precast component to prevent deformation; an anti-tilting structure is provided between the support structure and the lower base plate to ensure that the support structure is stable under force when supporting the inner formwork 17 of the large-volume precast component.

[0038] Specifically, such as Figure 1 , Figure 2 As shown, the supporting structure includes an upper top plate 7, which is closely attached to the inner formwork 17 of the large-volume precast component above, and provides support for the inner formwork 17; four load-bearing columns are set between the upper top plate 7 and the lower bottom plate 1. It can be understood that the four load-bearing columns are set at the four corners of the upper top plate 7 and the lower bottom plate 1, and are the main supporting force-bearing structures.

[0039] like Figure 2 , Figure 3 As shown, the load-bearing column consists of a mounting column 3, a height adjusting rod 4, and a slot 5. Specifically, the height adjusting rod 4 is a threaded round rod, and the mounting column 3 is a threaded square column. The height adjusting rod and the mounting column 3 are threaded together. Rotating the height adjusting rod 4 can raise or lower the height of the load-bearing column, thereby changing the support height. The top of the height adjusting rod 4 is rotatably connected to the slot 5, and the bottom of the mounting column 3 is fixedly connected to the slot 5. This is to ensure that even after the four load-bearing columns are connected to the upper top plate and the lower bottom plate, the height of the load-bearing column can still be adjusted by rotating the height adjusting rod. However, to ensure the overall stability of the load-bearing column after height adjustment, a tightening bolt 26 is installed at the rotatable connection between the height adjusting rod 4 and the slot 5. Tightening the tightening bolt 26 will stop the height adjusting rod, preventing relative rotation between the slot and the height adjusting rod, thus fixing the height of the four load-bearing columns connecting the upper top plate and the lower bottom plate.

[0040] It is understandable that the rotatable connection between the height adjustment rod 4 and the slot 5 can be achieved using existing technology. For example, a short cylinder with a diameter slightly larger than the rod itself can be fixedly connected to the top of the height adjustment rod 4. The end of the slot 5 connected to the height adjustment rod 4 has a groove with an inner diameter that matches the short cylinder, and the groove opening diameter equal to the diameter of the height adjustment rod 4. This allows the short cylinder to be accommodated in the groove, enabling the height adjustment rod to rotate relative to the slot without axial displacement. It is also understandable that the rotatable connection between the height adjustment rod 4 and the slot 5 is not limited to this example.

[0041] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a raised limiting plate 6 is fixed at each of the four corners of the top surface of the lower base plate 1, and multiple raised limiting plates 6 are fixed at each of the four corners of the bottom surface of the upper top plate 7. It can be understood that the limiting plates 6 at the four corners of the bottom surface of the upper top plate 7 coincide vertically with the limiting plates 6 at the four corners of the lower base plate; that is, the vertical projection of the multiple limiting plates 6 at a certain corner of the upper top plate 7 is on the same straight line as the vertical projection of the corresponding limiting plate at a certain corner of the lower base plate. It should be noted that the vertical projection of the limiting plate at a certain corner of the lower base plate coincides with the vertical projection of a certain limiting plate 6 at a certain corner of the upper top plate 7. This limiting plate 6 on the upper top plate 7 is located in the middle among the multiple limiting plates 6 on the upper top plate 7, and is used to ensure the verticality of the load-bearing column.

[0042] Insert the limiting plate 6 into the slot 5. The slot 5 and the limiting plate 6 are connected by bolts 2. Note that the limiting plate 6 is a semi-circular plate. This design allows the load-bearing column to change its angle. Specifically, the slot of the mounting column is connected to the limiting plate 6 of the lower base plate by bolts 2. Because the limiting plate 6 is semi-circular, the mounting column can swing left and right along its length, thus changing the support angle of the load-bearing column. Furthermore, since the top of the height adjustment rod 4 is rotatably connected to the slot 5, the overall height of the load-bearing column can still be adjusted by rotating the height adjustment rod 4 when the four load-bearing columns are connected between the upper top plate and the lower base plate.

[0043] like Figure 4 As shown, since the load-bearing column can change its angle, in order to enable the load-bearing column to connect with the upper top plate 7, multiple limiting plates 6 are also set at the four corners of the bottom surface of the upper top plate 7. In this embodiment, four limiting plates 6 at different positions are provided at the four corners of the bottom surface of the upper top plate 7. One of the limiting plates 6 is perpendicularly projected to the limiting plate 6 of the lower bottom plate 1. When the load-bearing column is installed between these two limiting plates, the load-bearing column is perpendicular to the upper top plate and the lower bottom plate. When the angle of the load-bearing column needs to be changed, such as shifting inward or outward, the slot 5 at the top of the height adjustment rod 4 is connected to the limiting plate 6 at the appropriate position on the upper top plate 7.

[0044] like Figure 1 As shown, since the angle of the load-bearing column of the support structure can be changed, an anti-tilting structure is set between the support structure and the bottom plate to ensure that the support structure is stable under stress when supporting the inner formwork 17 of the large-volume precast component.

[0045] Specifically, the anti-tilting structure includes a tension adjusting rod 11 and a compression adjusting rod 9, such as... Figure 5 As shown, on the inner side of the lower part of the mounting post 3, which follows the length direction of the limiting plate 6, there are two first mounting grooves 8, one above the other. It can be understood that the inner side refers to the side of the two mounting posts facing each other, and the outer side refers to the side of the mounting posts that are not facing each other.

[0046] like Figure 5 As shown, both the tension adjusting rod 11 and the compression adjusting rod 9 are connected to the mounting column 3 via the first mounting groove 8. Specifically, the first mounting groove 8 is provided with bolt holes, and one end of both the compression adjusting rod 9 and the tension adjusting rod 11 is also provided with bolt holes. The compression adjusting rod 9 is connected to the lower first mounting groove 8 via bolts 2, and the tension adjusting rod 11 is connected to the upper first mounting groove 8 via bolts 2. Because they are connected by bolts 2, the tension adjusting rod 11 and the compression adjusting rod 9 can rotate freely relative to the mounting column 3.

[0047] like Figure 5 As shown, the anti-tilt structure also includes a fixing slot 10 and a hook rod 13, both of which are fixedly mounted on the lower base plate. Specifically, the fixing slot 10 is located between the hook rod 13 and the limiting plate, and the fixing slot 10 is circular, with its center located on the extension line of the length direction of the limiting plate.

[0048] like Figure 5 As shown, both the pressure adjusting rod 9 and the tension adjusting rod 11 are composed of a threaded rod 20 and a nut rod 21. Their working principle is the same as that of the height adjusting rod and the mounting column. Their overall length can be changed by rotating the threaded rod. The difference is that a hook 12 is provided at the end of the threaded rod of the tension adjusting rod 11.

[0049] Understandably, once the support angle of the load-bearing column is determined, the load-bearing column needs to be fixed at the angle by the tension adjusting rod 11 and the compression adjusting rod 9 to achieve the stability of the support device during support work. Specifically, the length of the tension adjusting rod 11 is adjusted, and the angle of the tension adjusting rod 11 relative to the mounting column 3 is changed, so that the hook 12 at the end of the tension adjusting rod 11 keeps moving closer to the hook rod 13 until the hook 12 at the end of the tension adjusting rod 11 is firmly hooked on the hook rod 13. Similarly, the length of the compression adjusting rod 9 is adjusted, and the angle of the compression adjusting rod 9 relative to the mounting column 3 is changed, so that the threaded end of the compression adjusting rod 9 is inserted into the fixing slot 10.

[0050] During operation, when the load-bearing column shifts inward, the compression adjusting rod 9 provides support, ensuring the stability of the load-bearing column; when the load-bearing column shifts outward, the tension adjusting rod 11 pulls the load-bearing column, ensuring its stability. Through the compression adjusting rod and the tension adjusting rod, the stability of the load-bearing column at any angle can be guaranteed.

[0051] like Figure 1 , Figure 2 , Figure 3 As shown, to prevent large deformations at the corners far from the supporting structure during load-bearing, which could affect the quality of the precast concrete components, an auxiliary support structure is also provided. Specifically, the auxiliary support structure includes extension rods 14 and diagonal braces 15.

[0052] like Figure 6 , Figure 7 As shown, the extension rod 14 is also composed of two parts: a nut rod 21 and a threaded rod 20. Therefore, the overall length of the extension rod 14 can be changed by rotating the threaded rod. The nut rod of the extension rod 14 is connected to the load-bearing column via the second mounting slot 22 using bolts 2. Because the connection is made using bolts 2, the angle of the extension rod 14 relative to the mounting column can also be changed. Figure 1 As shown, the second mounting groove 22 is located on the upper outer side of the mounting post 3. The upper outer side refers to the side opposite to the side where the first mounting groove 8 is located.

[0053] A connecting block 19 is rotatably mounted on the top of the threaded rod of the extension rod 14. A diagonal brace 15 is rotatably connected to the connecting block. Specifically, the middle part of the diagonal brace 15 is rotatably connected to the connecting block 19 using bolts 2. The diagonal brace 15 can change a certain angle relative to the extension rod 14. Each end of the diagonal brace 15 has a connecting plate 16 with multiple fixing holes 18 for connecting the diagonal brace 15 and the inner template 17. In this embodiment, the connecting plate 16 has four fixing holes 18, through which bolts 2 are passed to fix the inner template 17 to the connecting plate 16.

[0054] During support, first determine the approximate extension angle of the extension rod 14 based on the position of the corner of the inner template 17, then adjust the length of the extension rod 14 so that the diagonal brace 15 is placed at the corner of the inner template 17, then determine the support angle of the diagonal brace 15, and adjust the length of the extension rod 14 again so that the connecting plates 16 at both ends of the diagonal brace 15 are tightly attached to the inner template 17, and finally connect and fix it to the inner template 17 through the fixing holes on the connecting plates 16 to achieve the function of corner diagonal support.

[0055] like Figure 8 As shown, a moving structure is also provided for ease of movement and use. Specifically, the moving structure includes two concave guide rails 25 and wheels 23 that are matched with the guide rails; the guide rails 25 are used for the wheels 23 to rotate and move within them. Multiple sets of wheels 23 are rotatably connected to the side of the lower base plate 1, with two wheels in each set, and the wheels in the same set are mounted on opposite sides. It can be understood that the distance between two guide rails 25 is equal to the distance between two wheels in the same set, thereby allowing the wheels to engage and rotate within the guide rails.

[0056] The moving structure also includes a wheel rotation control lever 24, which is embedded in the wheel 23 and can be pulled out and retracted; for example Figure 8As shown, when the support device moves to the support position, the wheel rotation control lever 24 is pulled out. At this time, the wheel rotation control lever contacts the guide rail and locks the wheel, restricting the rotation of the wheel and ensuring the overall stability of the inner mold support device. When the inner mold support device needs to be moved, the wheel rotation control lever is retracted. At this time, the wheel can move on the guide rail, and the inner mold support device can change its position.

[0057] Working principle:

[0058] First, lay out the guide rails, place the wheels of the support device inside the guide rails, move the support device to a suitable support position, and pull out the wheel rotation control lever to restrict the rotation of the wheels and ensure the stability of the inner mold support device.

[0059] Then, according to the size of the precast concrete component, rotate the height adjustment rod 4 to adjust the load-bearing column to a suitable height, leaving room for the installation thickness of the top plate 7;

[0060] While adjusting the height of the load-bearing column, select the support angle of the load-bearing column according to the shape and size of the precast component; after the support angle of the load-bearing column is adjusted to the appropriate position, adjust the length and angle of the tension adjustment rod 11 so that the hook 12 is firmly hung on the hook rod 13; similarly, adjust the length and angle of the compression adjustment rod 9 so that its end is inserted into the fixing slot.

[0061] After the height and angle of the load-bearing column are fixed, the top plate 7 is installed, and then the height adjustment rod is adjusted to slowly raise the height of the load-bearing column so that the top of the top plate 7 is in close contact with the inner template 17.

[0062] Determine the extension angle of the extension rod 14 based on the position of the corner of the inner template 17. Adjust the length of the extension rod 14 so that the diagonal brace 15 is placed at the corner of the inner template 17. Determine the support angle of the diagonal brace 15. Adjust the length of the extension rod 14 again so that the connecting plates 16 at both ends of the diagonal brace 15 are tightly attached to the inner template 17. Connect and fix the diagonal brace 15 to the inner template 17 through the fixing holes on the connecting plates 16. The installation is complete.

[0063] During disassembly, the auxiliary support part should be disassembled first, and the connection between the connecting plate and the inner template 17 should be disconnected first; then the height adjustment rod 4 should be slowly rotated to lower the load-bearing column to a certain height, so that a certain disassembly space is created between the top plate 7 and the inner template 17; then the bolt 2 between the slot 5 at the top of the height adjustment rod 4 and the limiting plate 6 of the top plate 7 should be removed, and then the top plate 7 should be removed.

[0064] Continue adjusting the height adjustment rod 4 to lower the height of the load-bearing column to its lowest point. Then remove the pressure adjustment rod 9 and the tension adjustment rod 11 to release the angle fixation of the load-bearing column. Place the load-bearing column flat on the lower base plate 1, retract the wheel rotation control rod to release the wheel rotation constraint, and drag the lower base plate 1 out through the wheels and guide rails. The disassembly is now complete.

[0065] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A support device for large-volume concrete inner formwork, characterized in that, It includes a bottom plate, a support structure on the bottom plate, and an auxiliary support structure on the support structure; an anti-tilting structure is installed between the support structure and the bottom plate; The supporting structure includes an upper top plate, and a load-bearing column is provided between the upper top plate and the lower bottom plate; the load-bearing column is composed of a height adjustment rod and a threaded connection between the mounting column and the mounting column. The auxiliary support structure includes an extension rod with one end installed on the upper part of the mounting column, a connecting block rotatably installed at the other end of the extension rod, and the middle part of the diagonal brace is rotatably connected to the connecting block by bolts. The anti-tilt structure includes a tension adjustment rod and a compression adjustment rod installed at one end of the mounting column, as well as a fixing slot and a hook rod fixedly installed on the bottom plate.

2. The large-volume concrete inner formwork support device as described in claim 1, characterized in that, Each end of the diagonal brace has a connecting plate with multiple fixing holes.

3. The large-volume concrete inner formwork support device as described in claim 1, characterized in that, The height adjustment rod is rotatably connected to the slot at the top, and a tightening bolt is provided at the position where the height adjustment rod is rotatably connected to the slot; the mounting column is fixedly connected to the slot at the bottom; a limiting plate is fixed at each of the four corners of the top surface of the lower base plate, and multiple protruding limiting plates are fixed at each of the four corners of the bottom surface of the upper top plate.

4. A large-volume concrete inner formwork support device as described in claim 3, characterized in that, The limiting plate is a semi-circular plate; the limiting plate is inserted into the slot and connected by bolts.

5. A large-volume concrete inner formwork support device as described in claim 3, characterized in that, On the inner side of the lower part of the mounting post, which follows the length direction of the limiting plate, two first mounting grooves are provided, one above the other; on the outer side of the upper part of the mounting post, which is opposite to the surface where the first mounting grooves are located, a second mounting groove is provided.

6. A large-volume concrete inner formwork support device as described in claim 5, characterized in that, The pressure-bearing adjusting rod is bolted to the first mounting groove below, and the tension-bearing adjusting rod is bolted to the first mounting groove above; the extension rod is bolted to the load-bearing column through the second mounting groove.

7. A large-volume concrete inner formwork support device as described in claim 3, characterized in that, The fixing slot is set between the hook rod and the limiting plate. The fixing slot is circular, and its center is set on the extension line of the length direction of the limiting plate.

8. A large-volume concrete inner formwork support device as described in claim 1, characterized in that, The extension rod, the pressure adjusting rod, and the tension adjusting rod are all composed of threaded rods and nut rods. The difference is that the tension adjusting rod has a hook at the end of the threaded rod, which is used to hook the hook rod; the extension rod has a connecting block rotatably installed at the end of the threaded rod; and the pressure adjusting rod has a fixed groove inserted into the end of the threaded rod for fixation.

9. A large-volume concrete internal formwork support device as described in claim 1, characterized in that, The lower base plate is also provided with a movable structure; the movable structure includes two concave guide rails and multiple sets of wheels that match the guide rails; the multiple sets of wheels are rotatably connected to the side of the lower base plate, and the distance between two guide rails is equal to the distance between two wheels in the same set.

10. A large-volume concrete inner formwork support device as described in claim 9, characterized in that, The movable structure also includes a wheel rotation control lever, which is embedded in the wheel and can be pulled out and retracted.

Images