Early-dismantling formwork supporting system

Abstract

The utility model relates to the technical field of constructional engineering, and particularly discloses an early-dismantling formwork supporting system which comprises vertical telescopic rod pieces and back ridge assemblies used for connecting two adjacent sets of vertical telescopic rod pieces and supporting a formwork. The back ridge assembly comprises a transverse back ridge and a longitudinal back ridge which are respectively connected with the corresponding vertical telescopic rod pieces; sliding blocks are respectively arranged on the transverse back ridges and the longitudinal back ridges; the sliding blocks slide in the length direction of the transverse back ridges or the longitudinal back ridges. According to the back arris, supporting and fixing of the back arris and a plate formwork are effectively achieved through the sliding blocks, meanwhile, a gap is formed between the back arris body and the plate formwork, in the construction process, constructors can hang construction tools conveniently, and construction convenience is greatly improved; meanwhile, the gap can also be used for hanging a horizontal connecting piece between the two groups of parallel transverse back ridges when a larger mounting space is formed, so that the connection is enhanced; when the laminated slab is constructed, the formed gap is used for installing the laminated slab, and the sliding block effectively limits the laminated slab.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and more specifically, to an early-demolition formwork support system. Background Art

[0002] The early-demolition formwork support system is a support system including a scaffold and formwork for the casting of concrete, reinforced concrete buildings or structures. The bottom formwork for casting beams or slabs is formed by combining the top plates of support columns and formwork. When the cast beam or slab cures to a certain extent, the formwork is removed through an early-demolition mechanism, and the cast beam or slab is continuously supported by the top plates of the support columns until it can be completely removed. The early-demolished formwork is transferred to other positions or floors, thereby shortening the construction period, achieving the purpose of improving construction labor productivity, and at the same time reducing the number of formworks invested and lowering construction costs.

[0003] In the prior art, multi-level horizontal bars are provided at different heights on fastener-type scaffolds and disk-type scaffolds, making it difficult to pass through the space below the scaffold body, bringing great inconvenience to construction operations and management, and the two types of support systems cannot achieve early demolition of the bottom formwork and side formwork of beams and slabs; the aluminum alloy formwork system can achieve a large space below and the early-demolition function, but it must use aluminum alloy formwork. This formwork has many non-standard parts, poor flexibility, low reuse rate, high amortization cost, and its weight is heavier than that of traditional wooden formwork, making construction handling difficult. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an early-demolition formwork support system;

[0005] The solution adopted by the utility model to solve the technical problem is:

[0006] An early-demolition formwork support system, used in cooperation with a slab formwork, includes multiple groups of vertically arranged and length-adjustable vertical telescopic members, and a backrest assembly for connecting adjacent two groups of vertical telescopic members and supporting the slab formwork;

[0007] The backrest assembly includes a horizontal backrest and a longitudinal backrest respectively connected to the corresponding vertical telescopic members;

[0008] Sliders are respectively arranged on the horizontal backrest and the longitudinal backrest; the sliders slide along the length direction of the horizontal backrest or the longitudinal backrest.

[0009] In some possible implementation manners, in order to facilitate the slider to effectively support the slab formwork according to the installation requirements of the slab formwork;

[0010] The slider has a U-shaped structure with an opening facing downwards; it includes a support plate arranged above the horizontal backrest or the longitudinal backrest, vertical plates respectively connected to both ends of the support plate and arranged in parallel, and a convex platform arranged on the side where the two vertical plates are close to each other and inserted and matched with the horizontal backrest or the longitudinal backrest.

[0011] In some possible embodiments, in order to effectively fix the slider to the horizontal or vertical back ribs;

[0012] On the horizontal or vertical back ribs and along their longitudinal directions, a plurality of jacks for cooperating with the bosses are provided.

[0013] In some possible embodiments, in order to effectively remove the formwork of the slab, and during the removal process, the vertical telescopic member can still effectively support the cast concrete;

[0014] The vertical telescopic member includes a support disc connected to the end of the back rib assembly, an adjustment screw sleeved in the support disc, a support rod sleeved outside the adjustment screw and located below the support disc, and a limiting member for restricting the relative vertical movement between the support disc and the adjustment screw, and between the adjustment screw and the support rod.

[0015] In some possible embodiments, a through hole is provided on the support disc for the end of the adjustment screw away from the support rod to pass through; the limiting member includes two sets of adjustment nuts sleeved outside the adjustment screw and in screw connection with the adjustment screw; wherein, one adjustment nut close to the support disc cooperates with the bottom of the support disc, and the other set of adjustment nuts cooperates with the top of the support rod.

[0016] In some possible embodiments, a plurality of mounting holes are provided on the support disc, and the distances from the centers of the plurality of mounting holes to the center of the support disc are equal and arranged at equal intervals; a round table for cooperating with the mounting holes is provided at the bottom of the horizontal and vertical back ribs.

[0017] In some possible embodiments, a support block is provided at the end of the adjustment screw away from the support rod, and the top surface of the support block is in the same plane as the top surface of the formwork of the slab.

[0018] In some possible embodiments, a connecting rod is provided between the adjacent horizontal and vertical back ribs connected to the same support disc.

[0019] In some possible embodiments, the horizontal and vertical back ribs have the same structure, including two connecting pipes respectively connected to two adjacent vertical telescopic members, and a back rib body provided between the two connecting pipes and connected to the two connecting blocks; the large end of the round table is connected to the bottom of the connecting pipe, and the jacks are provided on both sides of the back rib body along its longitudinal direction.

[0020] In some possible embodiments, the connecting pipe is sleeved outside the back rib body and is telescopically matched with the back rib body along the longitudinal direction of the back rib body; the two connecting pipes and the back rib body are coaxially arranged.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] In the present utility model, on the one hand, the use of the back rib assembly can realize the connection between the formwork panels, and on the other hand, it can effectively connect adjacent vertical telescopic rod members, enabling all vertical telescopic rod members to form an integral structure. There is no need to additionally increase horizontal connecting rod members to connect the vertical telescopic rod members, so that normal passage can be achieved under the formwork without interference from horizontal connecting rod members, greatly improving the construction efficiency.

[0023] The present utility model connects the support disc with the back rib assembly. The support disc is in screw connection with the adjusting screw. The formwork is installed on the back rib assembly. After the strength of the concrete poured on the formwork meets the requirements, the support disc is controlled to move towards the side close to the support rod, thereby driving the back rib assembly and the formwork supported by the back rib assembly to move; further separating the formwork from the concrete; during the entire formwork removal process, the adjusting screw is fixed relative to the support rod and will not move vertically, so that the adjusting screw can effectively support the concrete; thus realizing the early removal of the formwork.

[0024] The present utility model is provided with plastic sliders on the back rib body. The sliders effectively realize the support and fixation with the formwork, and at the same time form a gap between the back rib body and the formwork, facilitating the hanging of construction tools by construction workers during the construction process, greatly increasing the construction convenience; at the same time, this gap can also be used to hang horizontal connecting members between two groups of parallel horizontal back ribs when a relatively large installation space is formed to strengthen the connection between the horizontal back ribs; during the construction of the composite slab, the formed gap will be used to install the composite slab, and the sliders will effectively limit the composite slab.

[0025] The present utility model effectively strengthens the connection between the horizontal back ribs and the vertical back ribs by arranging connecting rods between adjacent horizontal back ribs and vertical back ribs on the same support disc, making it form a stable integral structure with the vertical telescopic rod assembly.

[0026] The structure of the present utility model is simple and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0028] Figure 2 is a top view of the present utility model;

[0029] Figure 3 is a structural schematic diagram of the vertical telescopic rod member in the present utility model;

[0030] Figure 4 is a bottom view of the connection relationship among the support disc, the back rib assembly, and the vertical telescopic rod member in the present utility model;

[0031] Figure 5 This is a connection diagram of the support disc, the back rib assembly, and the vertical telescopic rod member in the present utility model;

[0032] Figure 6 This is a top view of the vertical telescopic rod member in the present utility model;

[0033] Figure 7 This is a structural schematic diagram of the slider in the present utility model;

[0034] Figure 8 This is a structural schematic diagram of the back rib assembly in the present utility model;

[0035] Figure 9 This is a structural schematic diagram of the connecting rod in the present utility model;

[0036] Wherein: 1 - vertical telescopic rod member, 11 - support disc, 111 - mounting hole, 12 - adjusting screw, 13 - support rod, 14 - limiting member, 15 - support block, 2 - back rib assembly, 21 - horizontal back rib, 211 - connecting pipe, 2111 - frustum, 212 - back rib body, 2121 - insertion hole, 22 - longitudinal back rib, 23 - slider, 231 - convex platform; 3 - connecting rod, 31 - U-shaped clamping member. Detailed implementation manners

[0037] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. The "first", "second" and similar terms mentioned in this application do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "one" or "a" do not represent a quantity limit, but mean that there is at least one. In the implementation of this application, "and / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of this application, unless otherwise stated, the meaning of "multiple" is two or more. For example, multiple positioning columns refer to two or more positioning columns. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] The following is a detailed description of the present utility model.

[0039] As Figures 1 - 8 shown:

[0040] An early demolition formwork support system, used in cooperation with the formwork, includes multiple groups of vertically arranged vertical telescopic rod members 1 with adjustable lengths, and a back rib assembly 2 for connecting adjacent two groups of vertical telescopic rod members 1 and supporting the formwork.

[0041] The back rib assembly 2 includes a horizontal back rib 21 and a longitudinal back rib 22 respectively connected to the corresponding vertical telescopic rod members 1.

[0042] Sliders 23 are respectively arranged on the horizontal back rib 21 and the longitudinal back rib 22; the sliders 23 slide along the length direction of the horizontal back rib 21 or the longitudinal back rib 22.

[0043] The back rib assembly 2 connects all the vertical telescopic rod members 1 to form an integral structure, and can effectively realize the support and fixation of the formwork; during use, there is no need to additionally add horizontal connecting rod members 3 to connect the vertical telescopic rod members 1, so that the entire early demolition formwork support system becomes a support system with good stability. Since there is no need to set horizontal connecting members at the middle and lower parts of the vertical telescopic rod members 1, it enables construction workers and construction equipment to pass under the formwork during construction, greatly increasing the construction convenience.

[0044] Specifically, when the floor slab is a cast-in-place slab, the formwork can be a plastic formwork, a wooden formwork, a steel formwork or a composite slab.

[0045] When the plastic formwork, wooden formwork or steel formwork is used as the formwork, the formwork is installed above the slider 23 and fixed by screws or nails.

[0046] When the floor slab is a composite floor slab, the composite slab is installed on the slider 23, and a support formwork will be installed in the cast-in-place slab belt pouring area formed between adjacent two groups of composite slabs. The support formwork is installed on the horizontal back rib 21 or the longitudinal back rib 22 and its top surface is in the same plane as the bottom surface of the composite slab.

[0047] Through the above settings, the utility model has a wide range of applications; during use, according to the usage requirements, the construction workers are informed, and the corresponding installation method can be selected according to the different floor slabs.

[0048] In some possible implementation manners, in order to facilitate the slider 23 to effectively support the formwork according to the installation requirements of the formwork.

[0049] Such as Figure 7 shown, the slider 23 has a U-shaped structure with the opening facing downwards; it includes a support plate arranged above the horizontal back rib 21 or the longitudinal back rib 22, vertical plates respectively connected to both ends of the support plate and arranged in parallel, and a convex platform 231 arranged on the side where the two vertical plates are close to each other and inserted and matched with the horizontal back rib 21 or the longitudinal back rib 22.

[0050] A plurality of jacks 2121 for cooperating with the bosses 231 are arranged on the horizontal back brace 21 or the vertical back brace 22 along their longitudinal directions.

[0051] There are multiple groups of sliders 23, which are of a U-shaped structure and sleeved on the outer sides of the horizontal back brace 21 or the vertical back brace 22; after the sliders 23 slide to the designated positions, the bosses 231 provided on the vertical plates cooperate with the jacks 2121 to realize the fixed connection between the sliders 23 and the horizontal back brace 21 or the vertical back brace 22.

[0052] The sliders 23 are made of plastic materials; the formwork can be fixed to the sliders 23 by iron nails or screws, and then the formwork is connected to the present utility model to form a whole.

[0053] In some possible embodiments, in order to effectively remove the formwork, and during the removal process, the vertical telescopic member 1 can still effectively support the cast concrete.

[0054] As Figures 3 - 5 shown, the vertical telescopic member 1 includes a support disc 11 connected to the end of the back brace assembly 2, an adjustment screw 12 sleeved in the support disc 11, a support rod 13 sleeved outside the adjustment screw 12 and located below the support disc 11, and a limiting member 14 for restricting the relative vertical movement between the support disc 11 and the adjustment screw 12 and between the adjustment screw 12 and the support rod 13.

[0055] The limiting member 14 includes two groups of adjustment nuts sleeved outside the adjustment screw 12 and in screw connection with the adjustment screw 12; among them, the adjustment nut close to the support disc 11 cooperates with the bottom of the support disc 11, and the other group of adjustment nuts cooperates with the top of the support rod 13.

[0056] Furthermore, a support block 15 is arranged at one end of the adjustment screw 12 far from the support rod 13, and the top surface of the support block 15 is on the same plane as the top surface of the formwork.

[0057] The mutually close sides of the horizontal back brace 21 and the vertical back brace 22 installed on the same support disc 11 will form an installation cavity, and one end of the adjustment screw 12 far from the support rod 13 will extend into the installation cavity.

[0058] A through hole for the end of the adjusting nut away from the support rod 13 to pass through is provided on the support disk 11, and the through hole is coaxially arranged with the support disk 11; the support block 15 is located in the installation cavity and is connected to the adjusting screw 12 at the bottom. When supporting the formwork, the top surface of the support block 15 is on the same plane as the top surface of the formwork, closing the installation cavity to prevent the slurry during concrete pouring from entering the installation cavity and flowing vertically to contaminate the adjusting screw 12, resulting in the inability to screw the adjusting nut and the adjusting screw 12; at the same time, the setting of the support block 15 will increase the supporting surface between the top end of the adjusting screw 12 and the poured concrete;

[0059] When supporting the formwork, first adjust the vertical position of the adjusting screw 12, and limit the downward movement of the adjusting screw 12 along the vertical direction through the abutting contact between the adjusting nut away from the support disk 11 and the support rod 13; then effectively fix and support the formwork through the backing member assembly 2. At this time, control the adjusting nut on the side close to the support disk 11 to abut and cooperate with the bottom of the support disk 11 to limit the downward movement of the support disk 11;

[0060] When the strength of the concrete poured on the formwork reaches 50%, by screwing the adjusting nut that abuts and cooperates with the support disk 11, the adjusting nut moves along the axial direction of the adjusting screw 12 towards the side close to the support rod 13, so that the support disk 11 moves downward. The downward movement of the support disk 11 drives the backing member assembly 2 and the formwork on the backing member assembly 2 to move downward, so as to achieve separation from the concrete; early removal is realized; during the entire formwork removal process, the adjusting screw 12 will be limited by the adjusting nut that abuts and cooperates with the support rod 13 and will not move downward, so that the support block 15 will always abut against the concrete; the support for the poured floor slab is realized;

[0061] Only when the concrete strength reaches 100%, by controlling the adjusting nut that abuts and cooperates with the support rod 13 to move towards the side close to the support block 15, the adjusting screw 12 moves downward, driving the support block 15 to move downward, so as to realize the removal of the support rod 13, the adjusting screw 12, and the support block 15.

[0062] In some possible implementation manners, in order to effectively realize the connection and fixation between the backing member assembly 2 and the support disk 11; make the backing member assembly 2 and the vertical telescopic member 1 form a stable whole;

[0063] As Figure 6 shown, a plurality of groups of mounting holes 111 are provided on the support disk 11, and the distances from the centers of the plurality of groups of mounting holes 111 to the center of the support disk 11 are equal and arranged at equal intervals; the bottoms of the transverse backing member 21 and the longitudinal backing member 22 are provided with conical platforms 2111 that are matched with the mounting holes 111 for installation;

[0064] As Figures 3 - 6As shown, there are four groups of mounting holes 111 on the same support disc 11. Two groups are used for the mounting of the ends of two groups of horizontal back ribs 21, and two groups are used for the mounting of two groups of vertical back ribs 22;

[0065] Furthermore, the mounting hole 111 is a tapered hole, and its large end is arranged on the side away from the support rod 13; the cooperation between the tapered hole and the frustum 2111 can achieve the quick positioning and connection of the horizontal back rib 21 or the vertical back rib and the support disc 11;

[0066] In some possible implementation manners, a connecting rod 3 is arranged between the adjacent horizontal back rib 21 and vertical back rib 22 connected to the same support disc 11;

[0067] Specifically, as Figure 1 、 Figure 9 shown, the connecting rod 3 is in an L shape, and U-shaped clamping members 31 with openings downward are arranged at both ends of the connecting rod 3. The U-shaped clamping members 31 are in clamping fit with the back rib assembly; the connecting rod 3 is located in the installation cavity; the connecting rod 3 is mainly used for connecting the adjacent horizontal back rib 21 and vertical back rib 22 on the same support disc 11 at the edge position; and its connection is strengthened.

[0068] In some possible implementation manners, the horizontal back rib 21 and the vertical back rib 22 have the same structure, including two connecting pipes 4211 respectively connected to two adjacent vertical telescopic members 1, and a back rib body 212 arranged between the two connecting pipes 4211 and connected to two connecting blocks; the large end of the frustum 2111 is connected to the bottom of the connecting pipe 4211, and the jacks 2121 are arranged on both sides of the back rib body 212 along its length direction.

[0069] As Figure 7 、 Figure 8 shown, the large end of the frustum 2111 is installed at the bottom of the connecting pipe 4211, and its size is adapted to the tapered hole; both ends of the back rib body 212 are respectively connected to the two connecting pipes 4211. During use, back rib bodies 212 with different lengths can be connected to the connecting pipes 4211 according to the use requirements;

[0070] Specifically, the back rib body 212 is a square pipe; the jacks 2121 are arranged on two side surfaces of the back rib body 212 along its length direction. The slider 23 is connected and fixed by the boss 231 cooperating with the jacks 2121; the slider 23 can slide along the length direction of the back rib body 212 and cooperate with different jacks 2121 for fixation to adjust the gap between two adjacent sliders 23; the number of sliders 23 can be set according to the use requirements.

[0071] In some possible embodiments, the connecting pipe 4211 is sleeved outside the back rib body 212 and is telescopically engaged with the back rib body 212 along the longitudinal direction of the back rib body 212; the two groups of the connecting pipes 4211 and the back rib body 212 are coaxially arranged.

[0072] The back rib body 212 and the connecting pipe 4211 are arranged to be telescopically engaged, so that when the lengths of the horizontal back rib 21 and the vertical back rib 22 are within a certain range, there is no need to replace the back rib body 212 with different lengths. The positions of the connecting pipe 4211 and the back rib body 212 are directly sleeved, and then the two are fixed, thereby making the construction more efficient and convenient, greatly improving the construction efficiency and reducing the construction cost.

[0073] The present utility model is not limited to the foregoing specific embodiments. The present utility model extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. An early demolition formwork support system, used in cooperation with the slab formwork, characterized in that, It includes multiple sets of vertical telescopic rod members arranged vertically and with adjustable lengths, and a back rib assembly for connecting adjacent two sets of vertical telescopic rod members and supporting the formwork. The back rib assembly includes a horizontal back rib and a vertical back rib respectively connected to the corresponding vertical telescopic rod members. Sliders are respectively arranged on the horizontal back rib and the vertical back rib; the sliders slide along the length direction of the horizontal back rib or the vertical back rib.

2. The early demolition formwork support system according to claim 1, characterized in that The slider has a U-shaped structure with the opening facing downwards; it includes a support plate arranged above the horizontal back rib or the vertical back rib, vertical plates respectively connected to both ends of the support plate and arranged in parallel, and a convex platform arranged on the side where the two vertical plates are close to each other and inserted and matched with the horizontal back rib or the vertical back rib.

3. The early-demolition formwork support system according to claim 2, characterized in that, Multiple sets of jacks for cooperating with the convex platform are arranged on the horizontal back rib or the vertical back rib along its length direction.

4. The early demolition formwork support system according to claim 3, characterized in that, The vertical telescopic rod member includes a support disc connected to the end of the back rib assembly, an adjustment screw rod sleeved in the support disc, a support rod sleeved outside the adjustment screw rod and located below the support disc, and a limiting member for restricting the relative vertical movement between the support disc and the adjustment screw rod, and between the adjustment screw rod and the support rod.

5. The early removal formwork support system according to claim 4, characterized in that, A through hole for the end of the adjustment screw rod far from the support rod to pass through is arranged on the support disc; the limiting member includes two sets of adjustment nuts sleeved outside the adjustment screw rod and in screw connection with the adjustment screw rod.

6. The early-demolition formwork support system according to claim 4, characterized in that, Multiple sets of installation holes are arranged on the support disc, and the distances from the axes of the multiple sets of installation holes to the center of the support disc are equal and arranged at equal intervals; the bottoms of the horizontal back rib and the vertical back rib are provided with circular platforms for cooperating with the installation holes.

7. The early-demolition formwork support system according to claim 4, characterized in that A support block is arranged at the end of the adjustment screw rod far from the support rod, and the top surface of the support block is in the same plane as the top surface of the formwork.

8. The early-demolition formwork support system according to claim 4, characterized in that, A connecting rod is arranged between the adjacent horizontal back rib and vertical back rib connected to the same support disc.

9. The early demolition formwork support system according to claim 6, characterized in that, The horizontal back rib and the vertical back rib have the same structure, including two connecting pipes respectively connected to two adjacent vertical telescopic rod members, and a back rib body arranged between the two connecting pipes and connected to two connecting blocks; the large end of the circular platform is connected to the bottom of the connecting pipe, and the jacks are arranged on both sides along the length direction of the back rib body.

10. The early-demolition formwork support system according to claim 9, characterized in that, The connecting pipe is sleeved outside the back rib body and is telescopically matched with the back rib body along the length direction of the back rib body; the two connecting pipes and the back rib body are coaxially arranged.

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