A folding formwork support

Abstract

The present invention is applicable to the technical field of building formwork supports, and provides a folding formwork support, which includes a rectangular skeleton welded by round steel pipes and a rectangular outer frame arranged around the rectangular skeleton. A number of installation notches are formed on the rectangular outer frame. Support rods are installed on the rectangular skeleton, and adjusting support rings are sleeved on the support rods. An inner support frame opposite to the installation notches is installed at the bottom inside the rectangular outer frame. An inclined pull rod is hinged to the inner support frame through a sliding seat, and one end of the inclined pull rod away from the sliding seat is clamped with the adjusting support ring. When not in use, the present invention can fold the support rods and receive them inside the rectangular outer frame, and the inclined pull rod can also be removed from the adjusting support ring and placed inside the rectangular outer frame. After the whole device is folded, the outer shape forms a rectangular frame, constituting an independent small unit. It is not only convenient for handling and transportation, reducing the transportation cost, but also can be quickly deployed according to needs during use, improving the convenience of use.

Description

Technical Field

[0001] The present invention relates to the technical field of building formwork supports, and more specifically, it relates to a foldable formwork support. Background Art

[0002] In many fields such as building construction and stage erection, formwork supports are indispensable supporting devices, whose function is to provide a stable and reliable supporting foundation for various structures to ensure the safety and smooth progress of the construction or erection process.

[0003] Currently, the erection of formwork supports on the market mostly uses round steel pipes in cooperation with connecting pieces. Especially in the construction industry, formwork erection requires a large amount of round steel pipes and round steel pipe connecting pieces. Not only is the erection time-consuming, the construction labor intensity is high, but also the structural strength of the formwork support composed solely of round steel pipes and connecting pieces is limited. In order to ensure that the erected formwork support has sufficient supporting strength, it is necessary to arrange denser round steel pipes, further increasing the construction time and labor intensity. Although some existing other forms of formwork supports are relatively convenient to erect, they occupy a relatively large space, cannot be folded, and are not convenient for transportation. Due to unreasonable structural design, the support has a large volume and cannot be effectively folded, not only occupying a large amount of space and increasing the transportation cost, but also being very cumbersome during assembly and disassembly, consuming a large amount of time and manpower. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a foldable formwork support with high structural strength and convenient use.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention is a foldable formwork support, including a rectangular skeleton welded by round steel pipes and a rectangular outer frame arranged around the rectangular skeleton and welded to the rectangular skeleton. A number of installation slots are opened on the rectangular outer frame to expose part of the round steel pipe structure of the rectangular skeleton. Support rods are installed on the rectangular skeleton exposed by the number of installation slots. An adjusting support ring is sleeved on the support rods. An inner support frame opposite to the installation slots is installed at the bottom inside the rectangular outer frame. An inclined pull rod is hinged to the inner support frame through a sliding seat, and the end of the inclined pull rod away from the sliding seat is clamped with the adjusting support ring.

[0007] As a preferred technical solution of the present invention, the support rod includes a support seat sleeved on the round steel pipe structure of the rectangular skeleton. An internally threaded support pipe is fixed at the top of the support seat. An externally threaded support pipe with its top end extending to the top of the internally threaded support pipe is threadedly connected inside the internally threaded support pipe. A connecting sleeve is threadedly connected to the top end of the externally threaded support pipe. A round boss coaxial with the internally threaded support pipe is fixed at the bottom of the support seat. An externally threaded connecting column matched with the connecting sleeve is fixed at the center of the bottom end of the round boss.

[0008] As a preferred technical solution of the present invention, the adjustment support ring includes a ring body which is sleeved on an externally threaded support tube, a plurality of clamping frames cooperating with the inclined tie rod are fixed on the outer circular surface of the ring body, two arc-shaped fastening plates coaxial with the ring body are fixed on the top of the ring body, and the two arc-shaped fastening plates are fixedly connected by bolts located at both ends of the arc-shaped fastening plates.

[0009] As a preferred technical solution of the present invention, the inner support frame includes a connecting rod slidably connected to the slide seat, and V-shaped fixing plates are fixed at both ends of the connecting rod. The V-shaped fixing plates are fixedly connected to the rectangular outer frame by bolts.

[0010] As a preferred technical solution of the present invention, a fastening bolt with one end pressed against the connecting rod passes through the sliding seat, and a hinge seat hinged to the inclined tie rod is fixed on the sliding seat.

[0011] As a preferred technical solution of the present invention, the inclined tie rod includes an outer frame with one end hinged to a hinge seat, an inner rod is slidably arranged at one end of the outer frame, the end of the inner rod located outside the outer frame is clamped with a clamping frame, the end of the inner rod located inside the outer frame is fixed with a threaded column passing through the outer frame, a locking nut is sleeved on the threaded column, and a guide groove cooperating with the threaded column is opened on the outer frame.

[0012] As a preferred technical solution of the present invention, mounting holes are provided at both ends of the support seat, and positioning members are installed in the mounting holes. The positioning members include a spring filled in the mounting hole, and a filling cap located at the open end of the mounting hole and with the end flush with the end of the support seat. A limiting rod passes through the filling cap, and a pressure plate is fixed at one end of the limiting rod located inside the mounting hole, which is tightly pressed against the spring and cooperates with the inner cavity of the mounting hole, and the other end of the limiting rod passes through the rectangular outer frame.

[0013] As a preferred technical solution of the present invention, limit plates are fixed on the rectangular outer frame and at both ends of the installation slot, and limit holes cooperating with the limit rods are formed on the limit plates.

[0014] As a preferred technical solution of the present invention, the rectangular outer frame is formed by welding channel steels, and supporting ribs matching the round steel pipes constituting the rectangular skeleton are welded inside the rectangular outer frame.

[0015] The advantages of the present invention are:

[0016] The present invention can fold the support rod into the rectangular outer frame when not in use, and the diagonal rod can also be removed from the adjustable support ring and placed in the rectangular outer frame. After the entire device is folded, the outer shape forms a rectangular frame, forming an independent small unit. It is not only convenient to carry and transport, reducing transportation costs, but also can be quickly unfolded as needed when in use, improving the convenience of use.

[0017] The folding formwork support of the present invention adopts a structure combining a rectangular framework welded by round steel pipes and a rectangular outer frame formed by welding two channel steels relatively. Support ribs matching with the round steel pipes of the rectangular framework are welded inside the rectangular outer frame, and the channel steels are welded through the support ribs and the round steel pipes. This design greatly enhances the structural strength of the basic framework, can withstand greater pressure and complex external forces, effectively avoids the problems of deformation or damage of the support during use, and improves the safety of use.

[0018] The support rods of the present invention are hinged on the round steel pipes of the rectangular framework and can rotate around the round steel pipes through the installation notches, enabling the angles of the support rods to be conveniently adjusted according to actual use requirements, meeting diverse support scenarios, and improving the support effect. At the same time, the support rods adopt a structure in which an internally threaded support pipe is threadedly connected with an externally threaded support pipe, and the length of the support rods can be adjusted by rotation, further enhancing the flexibility and adaptability of the support.

[0019] In the present invention, multiple adjacent rectangular outer frames can be fixedly connected into an integral structure through multiple groups of connecting pieces, realizing the splicing and combination of multiple formwork supports. Through the cooperation of externally threaded connecting columns and connecting sleeves, two formwork supports can be stacked and connected into an integral structure up and down. The combined use of these two connection methods meets the support requirements of different scales and shapes, and further improves the versatility and practicality of the formwork support. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a folding formwork support of the present invention.

[0021] Figure 2 is a schematic structural diagram of the bottom view of the present invention.

[0022] Figure 3 is a schematic diagram of a state of the combined use of the formwork support of the present invention.

[0023] Figure 4 is another schematic diagram of a state of the combined use of the formwork support of the present invention.

[0024] Figure 5 is Figure 4 a partial enlarged schematic structural diagram of part A in

[0025] Figure 6 a schematic structural diagram of the support rod.

[0026] Figure 7 is the front view of the support rod.

[0027] Figure 8 is Figure 7 a sectional structural diagram taken along line A-A in

[0028] Figure 9It is a schematic structural diagram of a support rod member and a positioning member.

[0029] Figure 10 It is a schematic structural diagram of a rectangular skeleton, a rectangular outer frame, and a mounting notch.

[0030] Figure 11 It is Figure 10 the front view of.

[0031] Figure 12 It is Figure 11 the schematic sectional structure diagram at B-B in.

[0032] Figure 13 It is Figure 11 the schematic structure diagram at C-C in.

[0033] Figure 14 It is a schematic structural diagram of an adjusting support ring.

[0034] Figure 15 It is a schematic structural diagram of an inclined tie rod.

[0035] Figure 16 It is a schematic structural diagram of a connecting member.

[0036] In the accompanying drawings: 1. Rectangular skeleton; 2. Rectangular outer frame; 3. Mounting notch;

[0037] 4. Support rod member; 401. Support seat; 402. Inner threaded support pipe; 403. Outer threaded support pipe; 404. Connecting sleeve; 405. Circular boss; 406. Outer threaded connecting column; 407. Mounting hole;

[0038] 5. Adjusting support ring; 501. Sleeve body; 502. Clamping frame; 503. Arc-shaped fastening plate; 504. Locking bolt;

[0039] 6. Inner support frame; 7. Slide seat; 8. Inclined tie rod;

[0040] 9. Positioning member; 901. Spring; 902. Filling cap; 903. Limiting rod; 904. Pressing disc;

[0041] 10. Limiting plate; 11. Connecting member. Detailed implementation manners

[0042] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0043] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0045] Embodiment 1:

[0046] Please refer to Figures 1 - 16 the structural schematic diagram, and the present invention provides the following technical solutions:

[0047] Specifically, it refers to a folding formwork support, including a rectangular framework 1 welded by round steel pipes and a rectangular outer frame 2 arranged around the rectangular framework 1 and welded to the rectangular framework 1. The rectangular outer frame 2 is formed by welding two channel steels opposite to each other. Support ribs are welded inside the rectangular outer frame 2 and are matched with the round steel pipes forming the rectangular framework 1. Both channel steels forming the rectangular outer frame 2 are connected through support ribs, and the opposite ends of the channel steels are welded to the round steel pipes to ensure the structural strength of the basic framework composed of the rectangular framework 1 and the rectangular outer frame 2.

[0048] A number of installation slots 3 exposing the round steel pipe structure of a part of the rectangular framework 1 are opened on the rectangular outer frame 2. Support rods 4 are installed on the rectangular framework 1 exposed by the number of installation slots 3. The support rods 4 are hinged on the round steel pipes forming the rectangular framework 1 and can rotate around the round steel pipes of the rectangular framework 1 through the installation slots 3, and the angles of the support rods 4 can be adjusted during use. An adjusting support ring 5 is sleeved on the support rods 4. An inner support frame 6 facing the installation slots 3 is installed at the bottom inside the rectangular outer frame 2. The inner support frame 6 supports the rectangular outer frame 2 from the inside, provides a basis for the installation of the sliding seat 7 and enhances the structural strength of the rectangular outer frame 2 from the inside. An inclined pull rod 8 is hinged to the inner support frame 6 through the sliding seat 7. One end of the inclined pull rod 8 away from the sliding seat 7 is clamped with the adjusting support ring 5. The adjusting support ring 5 is connected to the sliding seat 7 through the inclined pull rod 8, and can strengthen the support for the support rods 4 from the side to ensure the stability of the support rods 4 when stressed, thereby improving the stability of the formwork support during use.

[0049] The inner support frame 6 includes a connecting rod slidably connected to the slide 7, and V-shaped fixing plates are fixed at both ends of the connecting rod, and the V-shaped fixing plates are fixedly connected to the rectangular outer frame 2 by bolts. The slide 7 is penetrated with a fastening bolt with one end pressed against the connecting rod, and a hinge seat hinged to the diagonal tie rod 8 is fixed on the slide 7. The diagonal tie rod 8 is hinged on the slide 7, which is convenient for rotating the diagonal tie rod 8. The slide 7 can be adjusted and moved on the connecting rod in the inner support frame 6, which is convenient for adjusting the position of the diagonal tie rod 8.

[0050] The support rod 4 includes a support seat 401 which is sleeved on the round steel pipe structure of the rectangular skeleton 1, an internally threaded support tube 402 is fixed on the top of the support seat 401, the internal thread of the internally threaded support tube 402 is connected to an externally threaded support tube 403 which extends to the top of the internally threaded support tube 402, the top of the externally threaded support tube 403 is connected to a connecting sleeve 404 through threads, a circular boss 405 which is coaxial with the internally threaded support tube 402 is fixed to the bottom of the support seat 401, an externally threaded connecting column 406 which cooperates with the connecting sleeve 404 is fixed at the center of the bottom end of the circular boss 405, when the internally threaded support tube 402 is vertically disposed in the rectangular outer frame 2, the bottom end face of the externally threaded connecting column 406 is flush with the bottom end face of the rectangular outer frame 2.

[0051] like Figure 3 , Figure 9 As shown, the external threaded connecting column 406 can be threadedly connected to the connecting sleeve 404. When the two formwork supports are used in combination, the external threaded connecting column 406 in the top formwork support and the internal threaded support tube 402 in the bottom support are connected to form an integral rod by rotating the connecting sleeve 404, thereby ensuring the stability of the entire formwork support structure. The circular boss 405 is used to increase the contact area with the connecting sleeve 404 from the top, increase the force-bearing area and improve the structural strength.

[0052] The adjusting support ring 5 comprises a collar body 501 sleeved on the external thread support tube 403, a plurality of clamping frames 502 matched with the diagonal tie rod 8 are fixed on the outer circumferential surface of the collar body 501, two arc-shaped fastening plates 503 coaxial with the collar body 501 are fixed on the top of the collar body 501, and the two arc-shaped fastening plates 503 are fixedly connected by locking bolts 504 located at both ends of the arc-shaped fastening plates 503. By tightening the two locking bolts 504, the arc-shaped fastening plates 503 are firmly clamped on the internal thread support tube 402, avoiding displacement when the collar body 501 is subjected to force, and ensuring the support of the diagonal tie rod 8 to the support rod 4.

[0053] Since the support rod member 4 is hinged to the circular steel pipe of the rectangular frame 1, the length of the support rod member 4 after being fully retracted (the bottom of the external thread support pipe 403 rotates until it contacts the inner bottom of the internal thread support pipe 402, and the top of the connecting sleeve 404 rotates until it is flush with the top of the external thread support pipe 403 or lower than the top of the external thread support pipe 403) is less than half of the inner width of the rectangular outer frame 2. Therefore, when not in use, the support rod member 4 can be rotated and folded into the rectangular outer frame 2. The diagonal bracing rod 8 can be removed from the adjusting support ring 5 and placed inside the rectangular outer frame 2. Finally, after the entire device is folded, the outer shape forms a rectangular frame, making the formwork support form an independent small unit, which is not only convenient for handling and transportation, but also can be quickly deployed according to needs during use, improving the convenience during use. Since each component constituting the formwork support is connected to the rectangular outer frame 2, each rectangular outer frame 2 is an independent and complete formwork support unit, and there will be no situation of losing small parts during transportation. It can be quickly assembled and used during use, and can also be recycled after being disassembled.

[0054] Embodiment 2:

[0055] Based on the specific Embodiment 1, the difference in this embodiment is:

[0056] As Figure 1 , Figure 14 , Figure 15 shown, the diagonal bracing rod 8 includes an outer frame hinged to a hinge base at one end. An inner rod is slidably arranged at one end of the outer frame. The end of the inner rod located outside the outer frame is clamped with a clamping frame 502. A threaded column penetrating the outer frame is fixed at the end of the inner rod located inside the outer frame. A locking nut is sleeved on the threaded column, and a guide groove matching the threaded column is opened on the outer frame. The diagonal bracing rod 8 arranged in this way can adjust its structural length according to the change in the position of the adjusting support ring 5 or the change in the position of the sliding seat 7 during use, so as to improve the application range and practicability of the formwork support.

[0057] Embodiment 3:

[0058] Based on the specific Embodiment 2, the difference in this embodiment is:

[0059] As Figure 4 , Figure 5 , Figure 6 , Figure 8 shown, mounting holes 407 are opened at both ends of the support seat 401, and positioning members 9 are installed in the mounting holes 407. The positioning member 9 includes a spring 901 filled in the mounting hole 407, and a filling cap 902 located at the opening end of the mounting hole 407 and having the end flush with the end of the support seat 401. A limiting rod 903 penetrates through the filling cap 902. A pressing disc 904 that abuts against the spring 901 and matches the inner cavity of the mounting hole 407 is fixed at the end of the limiting rod 903 located inside the mounting hole 407, and the other end of the limiting rod 903 penetrates through the rectangular outer frame 2.

[0060] At the positions on the rectangular outer frame 2 and at both ends of the installation notch 3, there are fixed limit plates 10, and limit holes for cooperating with the limit rods 903 are provided on the limit plates 10. Through the cooperation of the limit holes and the limit rods 903, the locking of the support base 401 can be realized, avoiding the swing when the support rod member 4 is under force support, and further improving the stability of the connection in cooperation with the diagonal tension rod 8. The aperture of the limit hole is greater than or equal to the diameter of the limit rod 903. When it is necessary to release the locking between the two, the limit rod 903 can be pushed out by extending a part of the structure in the connecting member 11 into the limit hole.

[0061] Embodiment 4:

[0062] Based on the specific Embodiment 2, the difference in this embodiment is:

[0063] As Figure 4 , Figure 5 , Figure 16 shown, a number of connection holes are provided on the rectangular outer frame 2, and the connecting members 11 for connecting adjacent two rectangular outer frames 2 are inserted through the rectangular outer frame 2 in the connection holes. The connecting member 11 is composed of a fixing plate, two pin shafts, and a clamping plate (implemented in cooperation with Embodiment 3, and the diameter of the pin shaft is equal to the diameter of the limit rod 903). The two pin shafts are fixed at both ends of the same side of the fixing plate. An arc-shaped groove is provided on the pin shaft, and a clamping groove for cooperating with the two pin shafts is provided on the clamping plate. An arc-shaped convex block for cooperating with the arc-shaped groove is arranged in the clamping groove. The length from the side of the fixing plate where the pin shaft is installed to the arc-shaped groove provided on the pin shaft is twice the thickness of the single side wall of the rectangular outer frame 2, ensuring that when adjacent two formwork supports are spliced, the arc-shaped groove on the connecting member 11 connecting the two rectangular outer frames 2 can be exposed from the other side, facilitating the insertion of the clamping plate to complete the connection of the two rectangular outer frames 2.

[0064] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A folding formwork support, comprising a rectangular framework (1) welded by round steel pipes and a rectangular outer frame (2) arranged around the rectangular framework (1) and welded to the rectangular framework (1), characterized in that: A number of installation notches (3) are provided on the rectangular outer frame (2) to expose the round steel pipe structure of part of the rectangular framework (1); Supporting rods (4) are installed on the rectangular framework (1) exposed by the number of installation notches (3); An adjusting support ring (5) is sleeved on the supporting rod (4); An inner support frame (6) facing the installation notch (3) is installed at the inner bottom of the rectangular outer frame (2); An inclined pull rod (8) is hinged to the inner support frame (6) through a sliding seat (7), and one end of the inclined pull rod (8) away from the sliding seat (7) is clamped with the adjusting support ring (5); The supporting rod (4) includes a support seat (401) sleeved on the round steel pipe structure of the rectangular framework (1), an internally threaded support pipe (402) is fixed at the top of the support seat (401), an externally threaded support pipe (403) with the top end extending to the top end of the internally threaded support pipe (402) is threadedly connected inside the internally threaded support pipe (402), and a connecting sleeve (404) is threadedly connected to the top end of the externally threaded support pipe (403); A round boss (405) coaxial with the internally threaded support pipe (402) is fixed at the bottom of the support seat (401), and an externally threaded connection column (406) matched with the connecting sleeve (404) is fixed at the center of the bottom end of the round boss (405).

2. The foldable formwork support according to claim 1, characterized in that, The adjusting support ring (5) includes a sleeve body (501) sleeved on the externally threaded support pipe (403), a number of clamping frames (502) matched with the inclined pull rod (8) are fixed on the outer circular surface of the sleeve body (501), two arc-shaped fastening plates (503) coaxial with the sleeve body (501) are fixed at the top of the sleeve body (501), and the two arc-shaped fastening plates (503) are fixedly connected through locking bolts (504) located at both ends of the arc-shaped fastening plates (503).

3. A foldable formwork support according to claim 1, characterized in that, The inner support frame (6) includes a connecting rod slidably connected to the sliding seat (7), V-shaped fixing plates are fixed at both ends of the connecting rod, and the V-shaped fixing plates are fixedly connected to the rectangular outer frame (2) through bolts.

4. A folding formwork support according to claim 3, wherein, A fastening bolt with one end abutted against the connecting rod penetrates through the sliding seat (7), and a hinge seat hinged to the inclined pull rod (8) is fixed on the sliding seat (7).

5. A foldable formwork support according to claim 4, characterized in that, The inclined pull rod (8) includes an outer frame hinged to the hinge seat at one end, an inner rod is slidably arranged at one end of the outer frame, one end of the inner rod located outside the outer frame is clamped with the clamping frame (502), a threaded column penetrating through the outer frame is fixed at one end of the inner rod located inside the outer frame, a locking nut is sleeved on the threaded column, and a guide groove matched with the threaded column is opened on the outer frame.

6. A foldable formwork support according to claim 1, characterized in that, Installation holes (407) are opened at both ends of the support seat (401), and positioning parts (9) are installed in the installation holes (407); Among them, the positioning member (9) includes a spring (901) filled in the mounting hole (407), and a filling cap (902) located at the opening end of the mounting hole (407) and having the same end as the end of the support seat (401). A limiting rod (903) penetrates through the filling cap (902). A pressing plate (904) that abuts against the spring (901) and cooperates with the inner cavity of the mounting hole (407) is fixed at one end of the limiting rod (903) inside the mounting hole (407). The other end of the limiting rod (903) penetrates through the rectangular outer frame (2).

7. A foldable formwork support according to claim 6, characterized in that, Limiting plates (10) are fixed at positions on the rectangular outer frame (2) at both ends of the mounting notch (3). Limiting holes that cooperate with the limiting rod (903) are formed in the limiting plates (10).

8. A foldable formwork support according to claim 1, wherein, The rectangular outer frame (2) is formed by welding channel steels. Support rib plates that cooperate with the round steel pipes forming the rectangular skeleton (1) are welded inside the rectangular outer frame (2).

9. The foldable formwork support according to claim 1, characterized in that, A plurality of connecting holes are formed in the rectangular outer frame (2). Connecting members (11) for connecting adjacent two rectangular outer frames (2) penetrate and are inserted into the connecting holes of the rectangular outer frame (2).

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