A quick-release prefabricated steel structure support device and its construction method

Abstract

A quick-release prefabricated steel structure support device and its construction method are disclosed. When individual formwork needs to be dismantled, simply rotate the rotating handle on each support rod corresponding to the quick-release unit of that formwork, causing only the column at that position to descend. When simultaneous dismantling is required, the lifting gear is raised to its highest position using the lifting handle. This highest position places the lifting gear and the clamping plates at the same height, and simultaneously, the teeth on the periphery of the lifting gear and the four clamping plates mesh synchronously. Further rotating the lifting handle along the guide groove causes the lifting gear to rotate synchronously, driving the four clamping plates to rotate. The rotation range covered by the transverse groove of the guide groove ensures that all four clamping plates can rotate synchronously to the unlocking position, thereby achieving simultaneous unlocking of four independent quick-release units.

Description

Technical Field

[0001] This invention relates to a support device for building steel structures, and more particularly to a quick-release prefabricated support device and its construction method. Background Technology

[0002] With the increasing proportion of cast-in-place concrete structures, formwork has become a widely used tool in construction engineering. Existing formwork includes wall formwork and roof slab formwork, among which quick-release prefabricated steel structure roof slab formwork has gained user and market acceptance after its use in construction projects. The existing quick-release support head of the roof slab formwork supports four adjacent roof slab formworks simultaneously through four upper columns, which improves the speed of roof slab formwork dismantling. However, in actual construction, due to the need for opening holes, maintenance, and replacement of damaged formwork, it is sometimes necessary to dismantle a section of formwork after the roof slab is poured. In this situation, when using traditional quick-release support structures, it is inevitable that other surrounding formwork will be affected simultaneously, and the loosening of other formwork will lead to a decrease in the quality of the poured roof slab.

[0003] Therefore, it is necessary to design a quick-release prefabricated steel structure support device and its construction method, which can ensure the simultaneous and rapid support and disassembly of multiple adjacent formwork panels, and also allow the disassembly of one formwork panel under special working conditions without affecting the installation status of the surrounding formwork panels. Summary of the Invention

[0004] The purpose of this invention is to provide a quick-release prefabricated steel structure support device and its construction method to solve the technical problems in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, a quick-release prefabricated steel structure support device is provided, including support rods and templates. The templates serve as top slab templates supported on the support rods. The same support rod simultaneously supports the right-angle joints of four adjacent templates. Each template is supported by four support rods located at its four corners.

[0007] The support rod, from bottom to top, includes a base, a fixed rod, a telescopic rod, a support platform, a quick-release assembly, a top support, and a synchronous quick-release mechanism. The quick-release assembly includes four independent quick-release units, which are respectively set at the corresponding positions of the four corners of the support platform and are symmetrically arranged with respect to the center of the support platform. Each quick-release unit includes only one column, which is used to support the right-angle position of the splicing of a template.

[0008] Preferably, the quick-release unit includes a column plate, a clamping plate, and a guide post; both the column plate and the clamping plate are sleeved on the guide post.

[0009] The bottom of the guide post is fixedly installed on the support platform, and the top of the guide post is fixedly connected to the bottom of the cylindrical platform. The guide post is a circular cylindrical structure, and rectangular protrusions are provided on the two symmetrical sides of the outer side of the column. The protrusions extend along the axial direction of the guide post and have a break at the upper part of the protrusion. The height of the break is the same as the thickness of the card plate.

[0010] Preferably, the column plate is a circular plate structure, with a through hole A in the center of the column plate that matches the cross-section of the guide column. The column plate slides on the guide column through the through hole A, and the column is provided on the upper surface of the column plate.

[0011] Preferably, the card plate is a circular plate structure with a through hole B in the center that matches the cross-section of the guide post. The card plate slides on the guide post through the through hole B. A toothed ring is also provided on the outer periphery of the card plate, and a rotating handle extending radially outward is also provided on the outer periphery of the card plate.

[0012] Preferably, the four quick-release units are respectively located at the four corners of the support platform, and when the support is locked, the positions of the four columns correspond to the positions of the four corners of the support platform; when the support is locked, the positions of the four rotating handles also correspond to the positions of the four corners of the support platform.

[0013] Preferably, the synchronous quick-release mechanism includes a lifting gear, a lifting rod, a lifting handle, and a guide groove; wherein, the synchronous quick-release mechanism is disposed at the top of the telescopic rod, the top of the telescopic rod is a hollow space, a through hole is provided at the top of the telescopic rod and the center of the support platform, the through hole connects the hollow space of the telescopic rod and the external space, the lifting rod is slidably disposed in the hollow space of the telescopic rod, and the upper end of the lifting rod extends out of the through hole, and a lifting gear is fixedly installed at the end of the lifting rod extending out of the through hole; an L-shaped guide groove is provided on the periphery of the telescopic rod, and a lifting handle is provided radially at the bottom of the lifting rod, the lifting handle extending out of the guide groove.

[0014] Preferably, a top support is fixedly installed on the four quick-release units; the top support includes a cylindrical platform and a top support plate; the cylindrical platform is fixedly installed on the four quick-release units, and the top support plate is a square steel plate structure installed on the cylindrical platform.

[0015] Preferably, the central axes of the base, fixing rod, telescopic rod, support platform, cylindrical platform, and top support plate are collinear with the symmetrical centers of the four quick-release units.

[0016] On the other hand, a construction method for a quick-release prefabricated steel structure support device is also provided. When it is necessary to remove the formwork individually, it is only necessary to rotate the rotating handle of the quick-release unit corresponding to the formwork on each support rod so that only the column at that position is lowered.

[0017] Preferably, when simultaneous disassembly is required, the lifting gear is raised to its highest position using the lifting handle. This highest position places the lifting gear and the clamping plate at the same height. Simultaneously, the teeth on the periphery of the lifting gear and the four clamping plates mesh synchronously. The lifting handle is further rotated along the guide groove, causing the lifting gear to rotate synchronously and drive the four clamping plates to rotate. The rotation range covered by the transverse groove of the guide groove ensures that the four clamping plates can rotate synchronously to the unlocking position, thereby achieving synchronous unlocking of the four independent quick-release units.

[0018] The beneficial effects of this invention are:

[0019] 1. Through the four independent quick-release units and synchronous quick-release mechanism in this application, it is ensured that the quick-release prefabricated steel structure support device of this application can not only independently dismantle a template, but also simultaneously and quickly dismantle four templates supported by a support rod, thereby improving the scalability of the existing support structure and meeting the needs of more working conditions.

[0020] 2. The independent quick-release unit uses a rotating locking plate with a gear ring around its perimeter, allowing the unit to be unlocked by rotation. The synchronous quick-release mechanism uses a manually adjustable gear mechanism, which raises the gear and engages with the four locking plates when synchronous unlocking is required, enabling simultaneous unlocking of the template in four directions. The structure is simple and efficient. Attached Figure Description

[0021] Figure 1 This is a side view of the support rod in this application;

[0022] Figure 2 This is a sectional view (AA) of the support rod;

[0023] Figure 3 This is a top view of the support rod;

[0024] Figure 4 This is a structural diagram of the quick-release unit;

[0025] Figure 5 This is a structural diagram of the guide post in the quick-release unit;

[0026] Figure 6 This is a schematic diagram of the card plate in the quick-release unit;

[0027] Figure 7 This is a diagram illustrating the locking mechanism of the quick-release unit.

[0028] Figure 8 The diagram shown is a schematic of a support rod supporting a template.

[0029] Figure 9 This is a structural diagram of the synchronous quick-release mechanism;

[0030] Figure 10This is another structural diagram of the synchronous quick-release mechanism.

[0031] In the diagram: Support rod 1, template 2, base 11, fixing rod 12, telescopic rod 13, support platform 14, quick-release assembly 15, top support 16, quick-release unit 151, cylindrical platform 161, top support plate 162, column plate 1511, clamping plate 1512, guide column 1513, protruding strip 1515, cut 1516, through hole A 1517, column 1514, through hole B 1518, rotating handle 1519, lifting gear 171, lifting rod 172, lifting handle 173, guide groove 174. Detailed Implementation

[0032] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings and preferred embodiments.

[0033] This application's quick-release prefabricated steel structure support device includes several support rods 1 and several templates 2. The templates 2 serve as top slab templates supported on the support rods 1. The same support rod 1 simultaneously supports the right-angle joints of four adjacent templates 2, and each template 2 is supported by four support rods 1 located at its four corners.

[0034] like Figure 1 The image shows a side view of the support rod 1 of this application. From bottom to top, the support rod 1 includes a base 11, a fixed rod 12, a telescopic rod 13, a support platform 14, a quick-release assembly 15, and a top support 16. The base 11, the ground contact portion of the support rod 1, is a rectangular flat plate. The fixed rod 12 is a hollow cylindrical steel column structure, vertically positioned above the base 11. Symmetrical ribs are centrally arranged at the connection point between the fixed rod 12 and the base 11 to strengthen the fixation between them. A telescopic rod 13, also a hollow steel column structure, is telescopically installed within the fixed rod 12. A locking nut for locking and positioning is provided between the telescopic rod 13 and the fixed rod 12. When the support rod 1 is in operation, the support height of the support rod 1 is adjusted by extending the telescopic rod 13 beyond the fixed rod 12. Once the appropriate height is reached, the locking nut is rotated to fix the telescopic rod 13 and the fixed rod 12 in place. A support platform 14 is fixedly installed at the top of the telescopic rod 13. The support platform 14 is also a square steel plate structure. Several ribs are also provided at the bottom of the support platform 14 where it connects to the telescopic rod 13 for reinforcement. A quick-release assembly 15 is provided on the top of the support platform 14.

[0035] Figure 2 for Figure 1 A cross-sectional view of support rod 1 (AA section), as shown below. Figure 2 As shown, the quick-release assembly 15 includes four independent quick-release units 151. The four quick-release units 151 are respectively arranged at the corresponding positions of the four corners of the support platform 14 and are symmetrically arranged with respect to the center of the support platform 14.

[0036] Figure 3 for Figure 1 Top view of support rod 1, as shown Figure 1 , 3 As shown, top supports 16 are fixedly installed on the four quick-release units 151. Each top support 16 includes a cylindrical platform 161 and a top support plate 162. The cylindrical platform 161 is fixedly installed on the four quick-release units 151, and the top support plate 162, a square steel plate structure, is installed on the cylindrical platform 161. The central axes of the base 11, fixing rod 12, telescopic rod 13, support platform 14, cylindrical platform 161, and top support plate 162 are collinear with the symmetrical center of the four quick-release units 151. The four right angles of the square plate of the top support plate 162 are offset at a 45-degree angle from the four right angles of the support platform 14.

[0037] like Figure 4-7 The diagram shown is a structural schematic of the quick-release unit 151. Figure 7 As shown, the quick-release unit 151 includes a column plate 1511, a locking plate 1512, and a guide post 1513. Both the column plate 1511 and the locking plate 1512 are sleeved on the guide post 1513, allowing for sliding and locking on the guide post 1513. Figure 5 The diagram shows the structure of the guide post 1513. The bottom of the guide post 1513 is fixedly mounted on the support platform 14, and the top of the guide post 1513 is fixedly connected to the bottom of the cylindrical platform 161. The guide post 1513 is a circular cylindrical structure with rectangular protrusions 1515 symmetrically arranged on both sides of the outer side of the post. The protrusions 1515 extend axially along the guide post 1513 and have a break 1516 at the upper part. The height of the break 1516 is the same as the thickness of the clamping plate 1512. Figure 4 The diagram shows the structure of the column plate 1511. The column plate 1511 is a circular plate structure. A through hole A1517, matching the cross-section of the guide column 1513, is provided in the center of the column plate 1511. The column plate 1511 can slide on the guide column 1513 through this through hole A1517. Furthermore, a column 1514 is also provided on the upper surface of the column plate 1511. The column 1514 is used to directly support the corners of the template 2. An L-shaped snap-fit ​​structure matching the column 1514 is provided at the corner of the template 2. Both the column 1514 and the L-shaped snap-fit ​​structure are consistent with the template column support structure in the prior art. Figure 6 The diagram shows the structure of the clamping plate 1512. The clamping plate 1512 is also a circular plate structure. The center of the clamping plate 1512 has a through hole B1518 that matches the cross-section of the guide post 1513. The clamping plate 1512 can slide on the guide post 1513 through this through hole B1512. In addition, a toothed ring is provided on the outer periphery of the clamping plate 1512, and a rotating handle 1519 extending radially outward is also provided on the outer periphery of the clamping plate 1512.

[0038] like Figure 7 The diagram shows the locking mechanism of the quick-release unit 151. The column plate 1511 and the clamping plate 1512 are respectively fitted onto the guide post 1513 through through holes A1517 and B1518. The column plate 1511 is positioned above the clamping plate 1512. The clamping plate 1512 is adjusted and slid to the position of the break 1516. Rotating the clamping plate 1512 allows it to be engaged at the port 1516 through through hole B1518, thus positioning the upper column plate 1511 and supporting the top template 2. When the clamping plate 1512 is further rotated so that through hole B1518 is rotated to a non-engaged position, the column plate 1511 and the clamping plate 1512 can fall along the guide post 1513, thereby releasing the top support of the template 2.

[0039] like Figure 3 As shown, four quick-release units 151 are respectively located at the four corners of the support platform 14. When the support is locked, the positions of the four columns 1514 correspond to the positions of the four corners of the support platform 14. At the same time, when the support is locked, the positions of the four rotating handles 1519 also correspond to the positions of the four corners of the support platform 14.

[0040] like Figure 8 The diagram shows a schematic of the support rod 1 supporting the template 2. As can be seen, this application uses four support rods 1 to support a template 2, with each support rod 1's column 1514 supporting one corner of the template 2. When the template 2 needs to be removed individually, only the rotating handle 1519 of the corresponding quick-release unit 151 on each support rod 1 needs to be rotated, causing only the column 1514 at that position to descend, without affecting the support status of the other three columns 1514 on the same support rod 1.

[0041] In order to enable the four quick-release units 151 to simultaneously remove and lower the four templates 2 supported by one support rod 1 during the final template removal, this application also provides the following: Figure 9-10 The synchronized quick-release mechanism 17 is shown. (As shown...) Figure 10As shown, the synchronous quick-release mechanism 17 includes a lifting gear 171, a lifting rod 172, a lifting handle 173, and a guide groove 174. The synchronous quick-release mechanism 17 is located at the top of the telescopic rod 13, which has a hollow top. A through hole is provided at the center of the top of the telescopic rod 13 and the support platform 14, connecting the hollow space of the telescopic rod 13 to the external space. The lifting rod 172 is slidably disposed within the hollow space of the telescopic rod 13, with its upper end extending from the through hole. The lifting gear 171 is fixedly installed at the end of the lifting rod 172 extending from the through hole. Furthermore, an L-shaped guide groove 174 is provided around the periphery of the telescopic rod 13. A lifting handle 173 is radially disposed at the bottom of the lifting rod 172, extending from the guide groove 174. The lifting handle 173 can slide axially and circumferentially within the guide groove 174, thereby driving the lifting gear 171 at the top of the lifting rod 172 to rise, fall, and rotate. When simultaneous disassembly is not required, the lifting gear 171 is in contact with the upper surface of the support platform 14 at its lowest position. When simultaneous disassembly is required, the lifting gear 171 is raised to its highest position by the lifting handle 173. This highest position places the lifting gear 171 and the clamping plate 1512 at the same height. At the same time, the teeth of the lifting gear 171 and the four clamping plates 1512 mesh synchronously with each other. The lifting handle 173 is further rotated along the guide groove 174, so that the rotation of the lifting gear 171 synchronously drives the four clamping plates 1512 to rotate. The rotation range covered by the transverse groove of the guide groove 174 can ensure that the four clamping plates 1512 can be synchronously rotated to the unlocking position, thereby realizing the synchronous unlocking of the four independent quick-release units 151.

[0042] The four independent quick-release units 151 and the synchronous quick-release mechanism 17 in this application ensure that the quick-release prefabricated steel structure support device of this application can not only dismantle a single template independently, but also simultaneously and quickly dismantle four templates supported by a support rod, thereby improving the scalability of the existing support structure and meeting the needs of more working conditions.

[0043] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A quick-release prefabricated steel structure support device, comprising support rods and templates, wherein the templates serve as top plate templates supported on the support rods, and the same support rod simultaneously supports the right-angle joint positions of four adjacent templates, each template being supported by four support rods located at its four corners, characterized in that: The support rod, from bottom to top, includes a base, a fixed rod, a telescopic rod, a support platform, a quick-release assembly, a top support, and a synchronous quick-release mechanism. The quick-release assembly comprises four independent quick-release units, each positioned at a corresponding position at one of the four corners of the support platform and symmetrically arranged relative to the center of the support platform. Each quick-release unit includes only one column, which supports a right-angled splicing position of a template. Each quick-release unit includes a column plate, a clamping plate, and a guide column. The column plate and clamping plate are both fitted onto the guide column. The bottom of the guide column is fixedly installed on the support platform, and the top of the guide column is fixedly connected to the bottom of the cylindrical platform. The guide column is a circular cylindrical structure. Rectangular protrusions are provided on the two symmetrical sides of the outer side. The protrusions extend along the axial direction of the guide post and have a break at the upper part of the protrusion. The height of the break is the same as the thickness of the clamping plate. The column plate is a circular plate structure. A through hole A matching the cross-section of the guide post is provided in the center of the column plate. The column plate slides on the guide post through the through hole A. The column is provided on the upper surface of the column plate. The clamping plate is a circular plate structure. A through hole B matching the cross-section of the guide post is provided in the center of the clamping plate. The clamping plate slides on the guide post through the through hole B. A toothed ring is also provided on the outer periphery of the clamping plate. At the same time, a rotating handle extending radially outward is also provided on the outer periphery of the clamping plate. Four quick-release units are respectively located at the four corners of the support platform. In the locked support state, the positions of the four uprights correspond to the four corners of the support platform. Similarly, in the locked support state, the positions of the four rotating handles also correspond to the four corners of the support platform. The synchronous quick-release mechanism includes a lifting gear, a lifting rod, a lifting handle, and a guide groove. The synchronous quick-release mechanism is located at the top of the telescopic rod, which has a hollow top. A through hole is provided at the top of the telescopic rod and the center of the support platform, connecting the hollow space of the telescopic rod to the external space. The lifting rod is slidably positioned. Within the hollow space of the telescopic rod, the upper end of the lifting rod extends from the through hole, and a lifting gear is fixedly installed at the end of the lifting rod extending from the through hole. An L-shaped guide groove is provided around the periphery of the telescopic rod, and a lifting handle is provided radially at the bottom of the lifting rod, extending from the guide groove. Top supports are fixedly installed on the four quick-release units. The top supports include a cylindrical platform and a top support plate. The cylindrical platform is fixedly installed on the four quick-release units, and the top support plate is a square steel plate structure installed on the cylindrical platform. The four right angles of the square plate of the top support plate are offset at a 45-degree angle from the four right angles of the support platform.

2. The quick-release prefabricated steel structure support device as described in claim 1, characterized in that: Base, fixing rod, The central axes of the telescopic rod, support platform, cylindrical platform, and top support plate are collinear with the symmetrical centers of the four quick-release units.

3. A construction method for a quick-release prefabricated steel structure support device as described in claim 2, characterized in that: when When individual templates need to be removed, simply rotate the handle on each support rod corresponding to the quick-release unit of that template. This causes only the column at that location to descend.

4. The construction method of the quick-release prefabricated steel structure support device as described in claim 3, characterized in that: When simultaneous dismantling is required, raise the lifting gear to its highest position using the lifting handle. This highest position allows the lifting gear to engage with... The pallets are at the same height, and the lifting gear meshes synchronously with the teeth on the periphery of the four pallets. Further rotation of the lifting handle along the guide groove causes the lifting gear to rotate synchronously, driving the four pallets to rotate. The transverse groove of the guide groove covers the rotation range. Ensure that all four plates can rotate synchronously to the unlock position, thereby enabling simultaneous unlocking of the four independent quick-release units.

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