A Structural Drop Panel Suspended Formwork Support Device and Method

Abstract

The present invention discloses a structural drop panel formwork support device and method, aiming to solve the deficiencies of formwork bulging and deviation of the formwork for the structural drop panel, and poor concrete forming effect. The invention includes a formwork made of metal material, and the formwork is connected with a plurality of support units. Each support unit includes a connecting frame and a support frame. The connecting frame is connected between the formwork and the support frame, and the support frame is detachably connected to the connecting frame. The support frame is tightly connected to the steel bars. The formwork of the structural drop panel formwork support device in this patent application has a stable and reliable structure, is not prone to deviation, has a good concrete forming effect, and a high formwork reuse rate.

Description

Technical Field

[0001] The present invention relates to the field of construction, and more specifically, it relates to a structure lowering slab formwork support device and method. Background Art

[0002] Structure lowering slab means reducing the structural elevation of the floor slab or roof slab (plate surface). The functions of each room in a building are different, and accordingly different floor decoration materials are adopted - stone, floor tiles, wooden floors, terrazzo, fine aggregate concrete, cement, etc. The construction methods of various materials are different, and the thicknesses are also different. Among them, the waterproof construction method of the slope has the largest thickness. For example, in bathrooms, shower rooms, kitchens, etc., this causes height differences in the floor surfaces of rooms with different materials. When the height difference is greater than 30 mm, the method of "lowering the slab" needs to be adopted to reduce the floor slab elevation on the side with a larger construction thickness, so that the floor surfaces with different construction methods are basically level after completion, avoiding too many small steps and small slopes from forming obstacles and bringing inconvenience to users. However, on the construction site, the qualified rate of the concrete forming quality of the structure lowering slab is relatively poor, and common quality problems such as the formwork of the suspended formwork bulging and deviating, and the lack of the height difference edges and corners after formwork removal often occur. Summary of the Invention

[0003] In order to overcome the above deficiencies, the present invention provides a structure lowering slab formwork support device and method, with a stable and reliable formwork structure, not easily deviated, good concrete forming effect, and high formwork reuse rate.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A structure lowering slab formwork support device includes a formwork made of metal material. The formwork is connected to a number of support units. Each support unit includes a connecting frame and a support frame. The connecting frame is connected between the formwork and the support frame, and the support frame is detachably connected to the connecting frame. The support frame is firmly connected to the steel bars.

[0005] The formwork is made of metal material, with good structural strength, long service life, high reuse rate, and simple and light disassembly. Moreover, the metal formwork has a good forming effect on the concrete surface. The support frame of the support unit is firmly connected to the steel bars, with stable and reliable support. Moreover, the formwork is supported by a number of support units, with good stability and not easily deviated. The support frame is detachably connected to the connecting frame. After the concrete is poured, the connecting frame is disassembled for next use, and the support frame remains in the concrete. The formwork of the structure lowering slab formwork support device in this patent application has a stable and reliable structure, is not easily deviated, has a good concrete forming effect, and a high formwork reuse rate.

[0006] Preferably, the support frame is in a "plus" shape structure, and the support frame is welded to the steel bars.

[0007] The support frame in a "plus" shape structure has good stability, and the connection method of welding makes the connection more reliable.

[0008] Preferably, the upper end of the support frame is detachably connected to the mounting seat. A card slot is provided on the mounting seat. The connecting frame is stuck with the card slot and the connecting frame is firmly connected to the mounting seat.

[0009] The detachable connection between the connecting frame and the support frame is realized through the mounting seat. During connection, first connect the mounting seat to the upper end of the support seat, then snap the connecting frame into the card slot and fasten the connecting frame and the mounting seat. After the concrete solidifies, detach the connecting frame from the card slot of the mounting seat, and then detach the mounting seat from the support frame for repeated use.

[0010] Preferably, the connecting frame includes a fixing plate and two connecting bars connected to the fixing plate. The fixing plate is connected to the template. The connecting bars are hinged to the fixing plate. Both connecting bars are stuck with the card slot and both connecting bars are firmly connected to the mounting seat.

[0011] The two connecting bars hinged to the fixing plate can adjust the connection angle, so as to adjust the inclination angle when the template is erected. Two connecting bars are provided between the support frame and the template, so as to form a stable structure between the template and the support frame and ensure the stability of the template.

[0012] Preferably, the lower end of the mounting seat is threadedly connected to the upper end of the support frame. A protective ring is connected to the upper end of the support frame. The protective ring is placed at the connection position of the mounting seat and the support frame.

[0013] The threaded connection method is convenient for disassembly and assembly. The protective ring can prevent the connection position of the mounting seat and the support frame from being covered by concrete during concrete pouring, which affects the disassembly of the mounting seat.

[0014] Preferably, a protective cover is installed at the lower part of the mounting seat. The protective cover covers the upper opening of the protective ring, so as to form a closed protective cavity between the protective cover and the protective ring. The connection position of the mounting seat and the support frame is placed in the protective cavity.

[0015] The connection position of the mounting seat and the support frame is placed in the protective cavity, which prevents concrete from entering the protective cavity and facilitates the disassembly of the mounting seat.

[0016] Preferably, a number of connection holes are arranged at intervals on the connecting bar. A pin is connected between the mounting seat and the connection hole.

[0017] The connection between the mounting seat and the connecting bar is realized through a pin, and the connection is convenient and reliable.

[0018] In another solution, a long strip-shaped slot hole is provided on the connecting bar. A locking rack is correspondingly arranged on the surface of the lower connecting bar and corresponding to the slot hole. A T-shaped locking rod is correspondingly connected to the mounting seat and corresponding to the slot hole. The locking rod passes through the slot hole. A locking nut is connected to the locking rod. The locking nut abuts against the mounting seat. The upper locking rod abuts against the connecting bar. A locking block is arranged between the lower locking rod and the connecting bar. Locking teeth are arranged on the locking block. The locking teeth are stuck on the locking rack.

[0019] The long strip-shaped jacking holes facilitate adjusting the connection position when the locking rod is connected to the connecting strip. The upper connecting strip is clamped between the locking rod and the mounting seat, and the lower connecting strip is clamped between the locking block and the mounting seat. Moreover, the locking teeth on the locking block are engaged with the locking rack on the connecting strip, thereby preventing relative movement between the connecting strip and the mounting seat, achieving reliable support for the formwork, and preventing the formwork from moving. After the support frames are welded to the steel bars, not all the support frames are necessarily on the same straight line. Therefore, the distances between different support frames and the formwork will deviate. At this time, the connection position of the connecting strip and the mounting seat is adjusted by adjusting the position of the locking rod in the slot hole, ensuring reliable connection of the connecting frame between the formwork and the support frames.

[0020] Preferably, columns are provided on the fixing plate, and a plurality of sleeves arranged at intervals are provided on the formwork. The sleeves on the formwork are sleeved on the columns to achieve the connection between the formwork and the fixing plate; a liftable support sleeve is connected to the column, and the lower end of the sleeve is supported on the support sleeve.

[0021] When the fixing plate and the formwork are connected, they are inserted and connected through the columns on the fixing plate and the corresponding sleeves on the formwork. The height of the formwork is adjusted by adjusting the up and down position of the support sleeve. The connecting frame and the formwork are convenient to disassemble, and the disassembled placement volume is small, facilitating transportation.

[0022] A structural drop panel suspended formwork support method, which is constructed using a structural drop panel suspended formwork support device, includes the following steps:

[0023] S1. Determine the number of support units according to the length of the formwork, and pre-connect the support frames to the steel bars;

[0024] S2. Install the formwork to the appropriate position;

[0025] S3. Pre-connect the connecting frame to the support frame. When connecting, first install a protective ring on the upper end of the support frame, and install a protective cover on the lower part of the mounting seat. Then thread the lower end of the mounting seat onto the upper end of the support frame, so that the protective cover covers the upper end of the protective ring;

[0026] S4. Pre-connect the connecting frame to the formwork. When connecting, the columns on the fixing plate are inserted into the corresponding sleeves on the formwork, and the lower end of the sleeve is supported on the support sleeve;

[0027] S5. Weld the support frames to the steel bars together;

[0028] S6. Fine-tune the position of the locking rod in the slot hole on the mounting seat, and then tighten the locking nut, so that the upper connecting strip is clamped between the locking rod and the mounting seat, the lower connecting strip is clamped between the locking block and the mounting seat, and the locking teeth on the locking block are engaged with the locking rack to position the connecting strip;

[0029] At S7, finely adjust the vertical position of the support sleeve to adjust the height of the template, and connect a screw to the sleeve. The end of the screw abuts against the column to achieve locking.

[0030] After the pre-connection of the support frame and the steel bars, the pre-connection of the connecting frame and the support frame, and the pre-connection of the connecting frame and the template, the entire structure of the drop-panel suspended formwork support device is basically formed. Then, weld the support frame to the steel bars. During the welding process, fine adjustment of the position of the support frame will occur, resulting in deviation of the template position. After the support frame and the steel bars are welded and positioned, adjust the position between the template and the support frame again. At this time, the pre-connection between the connecting frame and the support frame is in a relaxed state. During the adjustment process, finely adjust the position of the locking rod in the slot hole of the mounting seat. After adjustment, tighten the locking nut so that the upper connecting bar is clamped between the locking rod and the mounting seat, and the lower connecting bar is clamped between the locking block and the mounting seat. The locking teeth on the locking block are stuck on the locking rack to position the connecting bar and prevent the template from expanding during concrete pouring. Then, adjust the vertical height position of the template, finely adjust the vertical position of the support sleeve to adjust the height of the template, and connect a screw to the sleeve. The end of the screw abuts against the column to achieve locking. Thus, the precise and reliable installation and positioning of the entire structure of the drop-panel suspended formwork support device are completed.

[0031] Since the position will shift during the welding of the support frame and the steel bars, first perform pre-connection, then fine-tune the position after the support frame is welded, and finally perform fastening connection, ensuring the accuracy of the template installation position and the reliability of the connection. The traditional method directly installs all components in place and then welds the support frame, which easily causes deviation of the template position and affects the forming effect of the concrete.

[0032] Compared with the prior art, the beneficial effects of the present invention are: (1) The structure of the template of the drop-panel suspended formwork support device of this patent application is stable and reliable, not easily deviated, with good concrete forming effect and high template reuse rate; (2) Since the position will shift during the welding of the support frame and the steel bars, first perform pre-connection, then fine-tune the position after the support frame is welded, and finally perform fastening connection, ensuring the accuracy of the template installation position and the reliability of the connection. Description of the Drawings

[0033] Figure 1 is a schematic structural diagram of the use state of the present invention;

[0034] Figure 2 is a schematic structural diagram of the present invention;

[0035] Figure 3 is a side view of Embodiment 1 of the present invention;

[0036] Figure 4 is a side view of Embodiment 2 of the present invention;

[0037] Figure 5 Schematic diagram of the connection between the connecting bar and the mounting seat in Embodiment 2 of the present invention;

[0038] In the figure: 1, template; 2, connecting frame; 3, support frame; 4, mounting seat; 5, card slot; 6, fixing plate; 7, connecting bar; 8, protective ring; 9, connecting hole; 10, pin; 11, limiting piece; 12, protective cover; 13, protective cavity; 14, slot hole; 15, locking rack; 16, locking rod; 17, locking nut; 18, locking block; 19, locking tooth; 20, sliding groove; 21, end cover; 22, tension spring; 23, column; 24, sleeve; 25, support sleeve. Specific embodiments

[0039] The technical solution of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:

[0040] Embodiment 1: A structural drop - slab formwork support device (see attached Figure 1 to attached Figure 3 ), including a template 1 made of metal material. The template is an aluminum plate, which can be reused and is easy to disassemble. The template is connected to several support units. The support unit includes a connecting frame 2 and a support frame 3. The connecting frame is connected between the template and the support frame. The support frame is detachably connected to the connecting frame, and the support frame is firmly connected to the steel bars. The support frame is in a "plus" - shaped structure and is welded to the steel bars. The upper end of the support frame is detachably connected to a mounting seat 4. A card slot 5 is provided on the mounting seat. The connecting frame is stuck in the card slot and the connecting frame is firmly connected to the mounting seat. The connecting frame includes a fixing plate 6 and two connecting bars 7 connected to the fixing plate. The fixing plate is firmly connected to the template. The connecting bars are hinged to the fixing plate through connecting pins. A limiting piece is connected to the outer wall of the connecting pin to prevent the connecting pin from detaching from the connecting bar. Both connecting bars are stuck in the card slot and both connecting bars are firmly connected to the mounting seat. The upper part of the support frame is in an inverted T - shaped structure. External threads are provided on the outer wall of the upper part of the support frame. A threaded hole is provided at the lower end of the mounting seat. The lower end of the mounting seat is thread - connected to the upper end of the support frame through the threaded hole. A protective ring 8 is connected to the upper end of the support frame. The protective ring is placed at the connection position between the mounting seat and the support frame. The lower end of the protective ring is sleeved on the transition surface of the upper part of the support frame. A number of connecting holes 9 are arranged at intervals on the connecting bar. A pin 10 is connected between the mounting seat and the connecting hole. After the pin is connected to the mounting seat and the connecting bar, a limiting piece 11 is connected to the outer wall of the pin to prevent the pin from detaching.

[0041] The template is made of metal, with good structural strength, long service life, high reuse rate, and is easy to disassemble and light in weight. Moreover, the metal template has a good forming effect on the concrete surface. The support frame of the support unit is firmly connected to the steel bars, the support is stable and reliable, and the template is supported by several support units, with good stability and not easy to deviate. The support frame and the connecting frame are detachably connected. After the concrete is poured, the connecting frame is disassembled for next use, while the support frame remains in the concrete. The structure of the drop panel suspended formwork support device template in this patent application is stable and reliable, not easy to deviate, has a good concrete forming effect, and a high template reuse rate.

[0042] Embodiment 2: A drop panel suspended formwork support device (see attached Figure 4 , attached Figure 5 ), its structure is similar to that of Embodiment 1. The main difference is that in this embodiment, a protective cover 12 is installed at the lower position of the mounting seat. The protective cover covers the upper opening of the protective ring, forming a closed protective cavity 13 between the protective cover and the protective ring. The connection between the mounting seat and the support frame is placed in the protective cavity. A long strip-shaped slot hole 14 is provided on the connecting strip, and a locking rack 15 is correspondingly arranged on the surface of the lower connecting strip and corresponding to the slot hole. A T-shaped locking rod 16 is correspondingly connected to the mounting seat and corresponding to the slot hole. The locking rod passes through the slot hole, a locking nut 17 is connected to the locking rod, the locking nut abuts against the mounting seat, the upper locking rod abuts against the connecting strip, a locking block 18 is arranged between the lower locking rod and the connecting strip, and locking teeth 19 are arranged on the locking block. The locking teeth are stuck on the locking rack. A sliding slot 20 is correspondingly provided on the mounting seat and corresponding to the locking block. The locking block is slidably installed in the sliding slot. The locking block is sleeved together with the locking rod. The end of the sliding slot is firmly connected with an end cover 21, a tension spring 22 is connected between the end cover and the locking block, and the transition surface on the T-shaped locking rod abuts against the end surface of the locking block. A column 23 is provided on the fixing plate, and a plurality of sleeves 24 arranged at intervals are provided on the template. The sleeves on the template are sleeved with the column to realize the connection between the template and the fixing plate; a liftable support sleeve 25 is connected to the column. The support sleeve is threadedly connected to the column, and the lower end of the sleeve supports on the support sleeve. A screw is connected to the sleeve, and the end of the screw abuts against the column to realize locking. Other structures are the same as those in Embodiment 1.

[0043] The long strip-shaped jack is convenient for adjusting the connection position when the locking rod is connected to the connecting strip. The upper connecting strip is clamped between the locking rod and the mounting seat, the lower connecting strip is clamped between the locking block and the mounting seat, and the locking teeth on the locking block are stuck with the locking rack on the connecting strip, thus preventing relative movement between the connecting strip and the mounting seat, and realizing reliable support for the template and preventing the template from moving. After the support frames are welded to the steel bars, all the support frames are not necessarily on the same straight line. Therefore, the spacing between different support frames and the template will deviate. At this time, by adjusting the position of the locking rod in the slot hole, the connection position of the connecting strip and the mounting seat can be adjusted to ensure reliable connection of the connecting frame between the template and the support frame.

[0044] A structural drop - slab suspended formwork support method, which uses a structural drop - slab suspended formwork support device for construction, includes the following steps:

[0045] S1. Determine the number of support units according to the length of the formwork, and pre - connect the support frame with the steel bars;

[0046] S2. Install the formwork at a suitable position;

[0047] S3. Pre - connect the connecting frame with the support frame. When connecting, first fit a protective ring on the upper end of the support frame, and fit a protective cover on the lower part of the mounting seat. Then thread - connect the lower end of the mounting seat to the upper end of the support frame, so that the protective cover covers the upper end of the protective ring;

[0048] S4. Pre - connect the connecting frame with the formwork. When connecting, insert the upright column on the fixed plate into the corresponding sleeve on the formwork, and the lower end of the sleeve supports on the support sleeve;

[0049] S5. Weld the support frame to the steel bars together;

[0050] S6. Fine - tune the position of the locking rod in the slot hole of the mounting seat, and then tighten the locking nut, so that the upper connecting bar is clamped between the locking rod and the mounting seat, and the lower connecting bar is clamped between the locking block and the mounting seat. The locking teeth on the locking block are stuck on the locking rack to position the connecting bar;

[0051] S7. Fine - tune the up - and - down position of the support sleeve to adjust the height of the formwork, and connect a screw on the sleeve. The end of the screw abuts against the upright column to achieve locking.

[0052] After the pre - connection of the support frame and the steel bars, the pre - connection of the connecting frame and the support frame, and the pre - connection of the connecting frame and the formwork, the entire structural drop - slab suspended formwork support device is basically formed. Then weld the support frame to the steel bars. During the welding process, fine - tuning of the position of the support frame will occur, which will cause deviation of the formwork position at this time. After the support frame and the steel bars are welded and positioned, then adjust the position between the formwork and the support frame. At this time, the pre - connection of the connecting frame and the support frame is in a loose state. During the adjustment process, fine - tune the position of the locking rod in the slot hole of the mounting seat. After adjustment, tighten the locking nut, so that the upper connecting bar is clamped between the locking rod and the mounting seat, and the lower connecting bar is clamped between the locking block and the mounting seat. The locking teeth on the locking block are stuck on the locking rack to position the connecting bar, preventing the formwork from expanding during the concrete pouring process. Then adjust the up - and - down height position of the formwork, fine - tune the up - and - down position of the support sleeve to adjust the height of the formwork, and connect a screw on the sleeve. The end of the screw abuts against the upright column to achieve locking. Thus, the entire structural drop - slab suspended formwork support device completes accurate and reliable installation and positioning.

[0053] During the welding process of the support frame and the steel bars, position offsets may occur. Therefore, pre-connection is first carried out, and then fine-tuning of the position is performed after the support frame is welded, and finally, a fastening connection is made, ensuring the accuracy of the template installation position and the reliability of the connection. The traditional method directly welds the support frame after all components are installed in place at one step, which is likely to cause the deviation of the template position and affect the forming effect of the concrete.

[0054] The above-described embodiments are only preferred solutions of the present invention and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A structural drop plate hanging formwork support device, characterized in that: It includes a template made of metal material. The template is connected to several support units. The support unit includes a connecting frame and a support frame. The connecting frame is connected between the template and the support frame. The support frame is detachably connected to the connecting frame, and the support frame is firmly connected to the steel bars. The upper end of the support frame is detachably connected to a mounting seat. A card slot is provided on the mounting seat. The connecting frame is clamped with the card slot and the connecting frame is firmly connected to the mounting seat. The connecting frame includes a fixing plate and two connecting bars connected to the fixing plate. The fixing plate is connected to the template. The connecting bars are hinged to the fixing plate. Both connecting bars are clamped with the card slot and both connecting bars are firmly connected to the mounting seat. A long strip-shaped slot is provided on the connecting bar. A locking rack corresponding to the slot is provided on the surface of the lower connecting bar. A T-shaped locking rod is connected to the mounting seat corresponding to the slot. The locking rod passes through the slot. A locking nut is connected to the locking rod. The locking nut abuts against the mounting seat. The upper locking rod abuts against the connecting bar. A locking block is provided between the lower locking rod and the connecting bar. Locking teeth are provided on the locking block. The locking teeth are stuck on the locking rack.

2. A structural drop plate hanging formwork support device according to claim 1, characterized in that: The support frame has a "plus" shaped structure and the support frame is welded to the steel bars.

3. A structural drop plate hanging formwork support device according to claim 1, characterized in that: The lower end of the mounting seat is threadedly connected to the upper end of the support frame. A protective ring is connected to the upper end of the support frame. The protective ring is placed at the connection position between the mounting seat and the support frame.

4. A structural drop plate hanging formwork support device according to claim 3, characterized in that: A protective cover is installed at the lower part of the mounting seat. The protective cover covers the upper opening of the protective ring, so that a closed protective cavity is formed between the protective cover and the protective ring. The connection position between the mounting seat and the support frame is placed in the protective cavity.

5. The structural drop plate hanging formwork support device according to claim 1 is characterized in that: A number of connecting holes are provided at intervals on the connecting bar. A pin is connected between the mounting seat and the connecting hole.

6. A structural drop plate hanging formwork support device according to claim 1, characterized in that: A column is provided on the fixing plate. A number of sleeves are arranged at intervals on the template. The sleeves on the template are sleeved with the column to realize the connection between the template and the fixing plate. A liftable support sleeve is connected to the column. The lower end of the sleeve supports on the support sleeve.

7. A structural drop plate hanging formwork support method, characterized in that: Using the structure of the drop panel suspended formwork support device described in claim 6 for construction, it includes the following steps: S1. Determine the number of support units according to the length of the template, and pre-connect the support frame and the steel bars; S2. Install the template; S3. Pre-connect the connecting frame and the support frame. When connecting, first put a protective ring on the upper end of the support frame and put a protective cover on the lower part of the mounting seat, and then threadedly connect the lower end of the mounting seat to the upper end of the support frame, so that the protective cover covers the upper end of the protective ring; S4. Pre-connect the connecting frame and the template. When connecting, the column on the fixing plate is inserted into the corresponding sleeve on the template, and the lower end of the sleeve supports on the support sleeve; S5. Weld the support frame and the steel bars together; S6. Fine-tune the position of the locking rod in the slot on the mounting seat, and then tighten the locking nut, so that the upper connecting bar is clamped between the locking rod and the mounting seat, and the lower connecting bar is clamped between the locking block and the mounting seat. The locking teeth on the locking block are stuck on the locking rack to position the connecting bar; S7. Fine-tune the up and down position of the support sleeve to adjust the height of the template, and connect a screw on the sleeve. The end of the screw abuts against the column to realize locking.

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