Reinforcing device for cast-in-place independent foundation formwork

Abstract

The utility model provides a reinforcing device for a cast-in-place independent foundation template, which comprises a top layer template and other layer templates which are arranged in a foundation pit, the side walls of the top layer template and the other layer templates are detachably connected with connecting pieces, the connecting pieces of the top layer template are hinged with main diagonal bracing units, and the connecting pieces of the other layer templates are hinged with the main diagonal bracing units. Secondary inclined strut units are hinged to the connecting pieces of the other layers of formworks, the secondary inclined strut units are connected with the main inclined strut units in an inserted mode, and the other ends of the main inclined strut units are inserted into the foundation pit. The supporting angle of the main inclined strut unit can be adjusted according to independent foundation structures of different sizes, practicability is high, the reinforcing effect is good, the concrete forming quality is good, and the construction economic benefits are greatly improved; mounting and dismounting are convenient, turnover use can be achieved, and storage and transportation are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of formwork reinforcement, and specifically relates to a reinforcement device for the formwork of cast-in-situ independent foundations. Background Technique

[0002] Currently, most of the independent foundation formwork reinforcements use square timbers or steel pipes for reinforcement, and the inclined struts also use square timbers and steel pipes for reinforcement. Because when pouring the concrete of the independent foundation, the stress structure is simple, and the formwork is mainly subjected to the impact force and horizontal force of the concrete. Only inclined struts need to be added on the outside. However, a large number of materials such as square timbers, formwork, and steel pipes will be used. The reinforcement method also uses screws for one-time reinforcement, which is extremely easy to damage the formwork and square timbers, reducing the turnover rate of materials. Moreover, the strength and stiffness of the material reinforcement are not high, which easily leads to poor stability of the formwork support, as well as problems such as concrete leakage and deviation of the concrete finished product, resulting in waste of time and cost for later rework.

[0003] For example, a holistic reinforcement structure for a formwork used in the pouring of a stepped independent foundation disclosed in a Chinese invention patent with the application publication number CN108301415A. The holistic reinforcement structure includes a plurality of reinforcement units stacked according to the structural layers of the stepped independent foundation and a crossbar for fixedly connecting the reinforcement units into a whole. The reinforcement unit is axially telescopic, with one end detachably and fixedly connected to the formwork and the other end fixed on the foundation or the foundation pit wall. A plurality of crossbars are provided between the upper reinforcement unit and the lower reinforcement unit. The crossbars are placed on the upper surface of the lower formwork, and the upper formwork is fixed on the crossbars, so that the bottom surface of the upper formwork and the upper surface of the lower formwork are on the same horizontal plane.

[0004] In the above-mentioned prior art, the formwork of the independent foundation is reinforced. However, the wedge-shaped cushion block is bolted to the side wall of the foundation pit, and the soil of the side wall of the foundation pit is loose, which is extremely easy to slide, resulting in poor support effect of the support device and poor concrete forming.

[0005] Therefore, how to effectively solve the problems of poor support effect of the support device and poor concrete forming is a technical problem to be solved urgently. Content of the Utility Model

[0006] In view of the deficiencies in the above-mentioned background technique, the present utility model proposes a reinforcement device for the formwork of cast-in-situ independent foundations, which solves the problems of poor support effect of the support device and poor concrete forming.

[0007] The technical solution of this application is as follows:

[0008] A reinforcement device for the formwork of cast-in-place independent foundations, including a top formwork and other-layer formworks arranged in a foundation pit. Connecting pieces are detachably connected to the side walls of the top formwork and the other-layer formworks. The connecting piece of the top formwork is hinged with a main diagonal bracing unit, and the connecting piece of the other-layer formwork is hinged with a secondary diagonal bracing unit. The secondary diagonal bracing unit is inserted into the main diagonal bracing unit, and the other end of the main diagonal bracing unit is inserted into the foundation pit. The main diagonal bracing unit can adjust the support angle according to the independent foundation structures of different sizes, with strong practicability, good reinforcement effect, better concrete forming quality, and greatly improving the construction economic benefits; it is convenient for installation and disassembly, can be recycled, and is convenient for storage and transportation.

[0009] Further, the connecting piece includes a vertical plate provided with a plurality of holes I. A hook hanging on the upper surface of the top formwork or the other-layer formwork is arranged at the top of the vertical plate. A U-shaped plate is adjustably connected to the vertical plate. A bolt I sequentially passes through a hole II on the bottom plate of the U-shaped plate and the hole I and is in threaded cooperation with a nut I. The main diagonal bracing unit is hinged with the U-shaped plate.

[0010] Further, the main diagonal bracing unit includes an internally threaded support rod and an externally threaded support rod in threaded cooperation. A sleeve I is arranged at the top of the externally threaded support rod. Holes III are arranged on the side plates of the U-shaped plate. A screw rod I passes through the hole III and the sleeve I and is in threaded cooperation with a nut II.

[0011] Further, a strip-shaped hole is arranged on the internally threaded support rod. One end of the secondary diagonal bracing unit passes through the strip-shaped hole and is positioned by a fixing piece.

[0012] Further, the secondary diagonal bracing unit includes a screw rod II with a sleeve II arranged at one end. The sleeve II is hinged with the U-shaped plate. A screw rod III passes through the hole III and the sleeve II and is in threaded cooperation with a nut III. The other end of the screw rod II passes through the strip-shaped hole. The fixing piece includes a double nut II in threaded cooperation with the screw rod II, and the inner surface of the double nut II presses on the internally threaded support rod.

[0013] Further, a pointed part for inserting into the foundation pit is arranged at the bottom of the internally threaded support rod.

[0014] Further, a baffle is arranged on the internally threaded support rod at an interval from the pointed part. The baffle is in stop cooperation with the foundation pit, so that the baffle 55 is stuck on the outer surface of the foundation pit 1, enhancing stability.

[0015] Further, a plurality of wooden squares are arranged between the vertical plate and the top formwork or between the vertical plate and the other-layer formwork to enhance the strength of the formwork.

[0016] Furthermore, bolt groups for connecting with the top formwork or other layer formworks are arranged on the vertical plates to prevent displacement between the connecting member 4 and the formworks.

[0017] Furthermore, a support cross bar is arranged between the top formwork and the other layer formworks.

[0018] The specific beneficial effects of the present utility model include:

[0019] 1. The main diagonal bracing unit can adjust the support angle according to the independent foundation structures of different sizes, with strong practicability. The inner threaded support rod has high strength and rigidity, good reinforcement effect, and better concrete forming quality, greatly improving the construction economic benefits;

[0020] 2. The main diagonal bracing unit and the secondary diagonal bracing unit cooperate with each other and complement each other, strengthening the integrity of the support structure and the connection between components;

[0021] 3. The length of the main diagonal bracing unit is adjustable, with a wide application range;

[0022] 4. It is convenient for installation and disassembly, can be recycled, and is convenient for storage and transportation;

[0023] 5. It solves the difficulties and drawbacks in current conventional construction, can not only meet the requirements of independent foundation formwork reinforcement, but also avoid the rework situations such as later chiseling and repairing in conventional construction, improving the construction efficiency and ensuring the construction quality of concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic diagram of the usage state of Embodiment 1 of the present utility model;

[0026] Figure 2 It is a schematic diagram of Embodiment 1 of the present utility model;

[0027] Figure 3 It is a schematic diagram of the connecting member;

[0028] Figure 4 It is Figure 2 the enlarged view of part A in

[0029] Figure 5 It is Figure 4 the enlarged view of part B in

[0030] Figure 6Schematic diagram of Embodiment 2 of the present utility model;

[0031] Figure 7 Schematic diagram of the assembly relationship among the connecting piece, the main diagonal bracing unit, and the secondary diagonal bracing unit in Embodiment 2 of the present utility model;

[0032] Figure 8 Schematic diagram of Embodiment 3 of the present utility model.

[0033] Explanation of the reference numerals in the attached drawings:

[0034] 1, foundation pit; 2, top formwork; 3, formwork of other layers; 4, connecting piece;

[0035] 5, main diagonal bracing unit; 6, secondary diagonal bracing unit;

[0036] 11, wooden square; 12, bolt group;

[0037] 41, vertical plate; 42, hook; 43, U-shaped plate; 44, bolt 1;

[0038] 50, internally threaded support rod; 51, sleeve 1; 52, screw rod 1; 53, nut 2;

[0039] 54, tip; 55, baffle;

[0040] 500, externally threaded support rod; 501, strip hole;

[0041] 61, sleeve 2; 62, screw rod 2;

[0042] 63, screw rod 3; 64, nut 3; 65, double nut 2. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0044] Embodiment 1, a reinforcement device for the formwork of a cast-in-place independent foundation, as Figure 1 , Figure 2 shown, includes a top formwork 2 and formwork 3 of other layers arranged in a foundation pit 1. The side walls of the top formwork 2 and the formwork 3 of other layers are detachably connected with a connecting piece 4. The connecting piece 4 of the top formwork 2 is hinged with a main diagonal bracing unit 5 inserted into the foundation pit 1. The connecting piece 4 of the formwork 3 of other layers is hinged with a secondary diagonal bracing unit 6, and the secondary diagonal bracing unit 6 is inserted into the main diagonal bracing unit 5.

[0045] Specifically, the independent foundation includes single-step foundation, double-step foundation, triple-step foundation, etc. In this embodiment, it is applicable to the double-step foundation. Therefore, the formwork is provided with two layers, namely the top formwork 2 and the other layer formwork 3.

[0046] On the basis of the above-mentioned implementation manner, the connecting member 4 includes a vertical plate 41 provided with a number of holes one, the top of the vertical plate 41 is provided with a hook 42 hanging on the upper surface of the top formwork 2 or the other layer formwork 3, the vertical plate 41 is adjustably connected with a U-shaped plate 43, a bolt one 44 passes through the hole two on the bottom plate of the U-shaped plate 43, the hole one in sequence and is in threaded cooperation with a nut one, and the main diagonal bracing unit 5 is hinged with the U-shaped plate 43.

[0047] Specifically, eight connecting members 4 are provided on both the top formwork 2 and the other layer formwork 3. The top formwork 2 and the other layer formwork 3 are both rectangular, and two connecting members 4 are provided on each side. The U-shaped plate 43 can be connected with different holes one according to the position requirements to reach the best support position, strengthening the reinforcement and stability of the independent foundation.

[0048] On the basis of the above-mentioned implementation manner, as Figure 3 shown, the internally threaded support rod 50 and the externally threaded support rod 500 in threaded cooperation, the top of the externally threaded support rod 500 is provided with a sleeve one 51, the sleeve one 51 is horizontally arranged, holes three are provided on the side plates of the U-shaped plate 43, a screw rod one 52 passes through the holes three, the sleeve one 51 and is in threaded cooperation with a nut two 53, and the sleeve one 51 can adjust the angle around the screw rod one 52 with the screw rod one 52 as the rotation axis.

[0049] On the basis of the above-mentioned implementation manner, a strip-shaped hole 501 is provided on the internally threaded support rod 50, and one end of the secondary diagonal bracing unit 6 passes through the strip-shaped hole 501 and is positioned by a fixing member.

[0050] On the basis of the above-mentioned implementation manner, as Figure 5 shown, the secondary diagonal bracing unit 6 includes a screw rod two 62 with a sleeve two 61 provided at one end, the sleeve two 61 is hinged with the U-shaped plate 43, a screw rod three 63 passes through the holes three, the sleeve two 61 and is in threaded cooperation with a nut three 64, the other end of the screw rod two 62 passes through the strip-shaped hole 501, and the fixing member includes a double nut two 65 in threaded cooperation with the screw rod two 62, and the inner surface of the double nut two 65 presses on the internally threaded support rod 50.

[0051] On the basis of the above-mentioned implementation manner, as Figure 4 shown, the bottom of the internally threaded support rod 50 is provided with a pointed part 54 for inserting into the foundation pit 1.

[0052] On the basis of the above - mentioned embodiment, a baffle 55 is provided on the internal - thread support rod 50 at an interval from the tip 54. The baffle 55 is in a blocking fit with the foundation pit 1, so that the baffle 55 is stuck on the outer surface of the foundation pit 1 to enhance stability.

[0053] On the basis of the above - mentioned embodiment, a number of wooden squares 11 are provided between the vertical plate 41 and the top - layer formwork 2 or between the vertical plate 41 and the other - layer formworks 3.

[0054] Preferably, the hook 42 at the top of the vertical plate 41 is hung on the top - layer formwork 2 or on the other - layer formworks 3. There will be a certain gap between the top and bottom of the vertical plate 41 and the side wall of the formwork. Wooden squares 11 are inserted between the top of the vertical plate 41 and the formwork and between the bottom of the vertical plate 41 and the formwork to enhance the strength of the formwork.

[0055] On the basis of the above - mentioned embodiment, a bolt group 12 for connecting the vertical plate 41 to the top - layer formwork 2 or to the other - layer formworks 3 is provided. The bolt group 12 passes through the wooden square 11 and the formwork in sequence for fixation, preventing displacement between the connecting member 4 and the formwork.

[0056] On the basis of the above - mentioned embodiment, a support cross - bar 7 is provided between the top - layer formwork 2 and the other - layer formworks 3. The support cross - bar 7 is made of a steel pipe. The formwork and the wooden square 11 are both of light weight. The steel pipe is arranged along two sides of the formwork to play a supporting role.

[0057] Embodiment 2, as a preferred embodiment of the reinforcement device for the in - situ cast independent foundation formwork, is different from Embodiment 1 in that, as Figure 6 shown, this embodiment is applicable to a three - order foundation. Therefore, the formwork is provided with three layers, namely one top - layer formwork 2 and two other - layer formworks 3. Connecting members 4 are detachably connected to the side walls of the top - layer formwork 2 and the other - layer formworks 3. The connecting member 4 of the top - layer formwork 2 is hinged with a main diagonal - brace unit 5, and the connecting member 4 of the other - layer formwork 3 is hinged with a secondary diagonal - brace unit 6. The secondary diagonal - brace units 6 are all inserted into the main diagonal - brace unit 5.

[0058] On the basis of the above - mentioned embodiment, the connecting member 4 includes a vertical plate 41 provided with a number of holes 1. A hook 42 is provided at the top of the vertical plate 41 and is hung on the upper surface of the top - layer formwork 2 or the other - layer formworks 3. A U - shaped plate 43 is adjustably connected to the vertical plate 41. A bolt 1 44 passes through a hole 2 on the bottom plate of the U - shaped plate 43 and the hole 1 in sequence and is in threaded cooperation with a nut 1. The main diagonal - brace unit 5 is hinged with the U - shaped plate 43.

[0059] Specifically, eight connectors 4 are provided on both the top layer template 2 and the other layer templates 3. The top layer template 2 and the other layer templates 3 are both rectangular, and two connectors 4 are provided on each side. The U-shaped plate 43 can be connected to different holes one according to position requirements to reach the best support position, strengthening the reinforcement and stability of the independent foundation.

[0060] On the basis of the above-mentioned implementation manner, for the internally threaded support rod 50 and the externally threaded support rod 500 with threaded fit, a sleeve one 51 is provided at the top of the externally threaded support rod 500. The sleeve one 51 is horizontally arranged. Through holes three are provided on the side plates of the U-shaped plate 43. The screw one 52 passes through the through hole three, the sleeve one 51 and is in threaded fit with the nut two 53. The sleeve one 51 can adjust the angle around the screw one 52 with the screw one 52 as the rotation axis.

[0061] On the basis of the above-mentioned implementation manner, a strip-shaped hole 501 is provided on the internally threaded support rod 50. One end of the secondary diagonal bracing unit 6 passes through the strip-shaped hole 501 and is positioned by a fixing member.

[0062] On the basis of the above-mentioned implementation manner, the secondary diagonal bracing unit 6 includes a screw two 62 with a sleeve two 61 provided at one end. The sleeve two 61 is hinged to the U-shaped plate 43. The screw three 63 passes through the through hole three, the sleeve two 61 and is in threaded fit with the nut three 64. The other end of the screw two 62 passes through the strip-shaped hole 501. The fixing member includes a double nut two 65 in threaded fit with the screw two 62, and the inner surface of the double nut two 65 presses on the internally threaded support rod 50.

[0063] On the basis of the above-mentioned implementation manner, a pointed portion 54 for inserting into the foundation pit 1 is provided at the bottom of the internally threaded support rod 50.

[0064] On the basis of the above-mentioned implementation manner, a baffle 55 that is in stop fit with the foundation pit 1 is provided on the internally threaded support rod 50 at an interval from the pointed portion 54, so that the baffle 55 is stuck on the outer surface of the foundation pit 1 to enhance stability.

[0065] On the basis of the above-mentioned implementation manner, a number of wooden squares 11 are provided between the vertical plate 41 and the top layer template 2 or the other layer templates 3.

[0066] Preferably, the hook 42 at the top of the vertical plate 41 is hung on the top layer template 2 or the other layer templates 3. There will be a certain gap between the top and bottom of the vertical plate 41 and the template side wall. Wooden squares 11 are inserted between the top of the vertical plate 41 and the template and between the bottom of the vertical plate 41 and the template to enhance the strength of the template.

[0067] On the basis of the above embodiments, bolt groups 12 for connecting with the top layer formwork 2 or other layer formworks 3 are arranged on the vertical plates 41. The bolt groups 12 pass through the wooden squares 11 and the formworks in sequence for fixation to prevent displacement.

[0068] On the basis of the above embodiments, support crossbars 7 are arranged between the top layer formwork 2 and other layer formworks 3, and between the other layer formworks 3. The support crossbars 7 are made of steel pipes. The formworks and the wooden squares 11 are both of light weight. The steel pipes are arranged along two sides of the formworks to play a supporting role.

[0069] Embodiment 3, as a preferred embodiment of the reinforcement device for the cast-in-place independent foundation formwork, is different from Embodiment 1 and Embodiment 2 in that, as Figure 8 shown, the device can also be applicable to single-step foundations. A connecting member 4 is detachably connected to the side wall of the top layer formwork 2. The connecting member 4 of the top layer formwork 2 is hinged with a main diagonal bracing unit 5, and the other end of the main diagonal bracing unit 5 is inserted into the foundation pit 1.

[0070] Embodiment 4, as a preferred embodiment of the reinforcement device for the cast-in-place independent foundation formwork, is different from Embodiment 1 and Embodiment 2 in that the present utility model can also be applicable to various multi-step independent foundations, and the secondary diagonal bracing units 6 hinged on the other layer formworks 3 are all inserted into the main diagonal bracing unit 5 of the top layer formwork 2.

[0071] The details not elaborated in the present utility model are all well-known conventional technical means in the art.

[0072] The above content shows and describes the basic principles, main features and beneficial effects of the present utility model. The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A reinforcement device for cast-in-place independent foundation formwork, characterized in that: The invention comprises a top template (2) and other templates (3) arranged in a foundation pit (1); the side walls of the top template (2) and other templates (3) are detachably connected with connecting pieces (4); the connecting piece (4) of the top template (2) is hingedly connected to a main diagonal bracing unit (5) inserted into the foundation pit (1); the connecting piece (4) of the other template (3) is hingedly connected to a secondary diagonal bracing unit (6); and the secondary diagonal bracing unit (6) is plugged into the main diagonal bracing unit (5).

2. The reinforcement device for cast-in-place independent foundation formwork according to claim 1, characterized in that: The connecting member (4) comprises a vertical plate (41) provided with a plurality of holes (1), a hook (42) hung on the upper surface of the top layer formwork (2) or the upper surface of the other layer formwork (3) is provided on the top of the vertical plate (41), a U-shaped plate (43) is adjustably connected to the vertical plate (41), a bolt (44) passes through hole (2) on the bottom plate of the U-shaped plate (43), the hole (1) and is threadedly engaged with a nut (1), and the main diagonal bracing unit (5) is hinged to the U-shaped plate (43).

3. The reinforcement device for cast-in-place independent foundation formwork according to claim 2, characterized in that: The main diagonal bracing unit (5) comprises an internally threaded support rod (50) and an externally threaded support rod (500) which are threadedly matched, a sleeve one (51) is arranged at the top of the externally threaded support rod (500), a hole three is arranged on the side plate of the U-shaped plate (43), a screw rod one (52) passes through the hole three and the sleeve one (51) and is threadedly matched with a nut two (53).

4. The reinforcement device for cast-in-place independent foundation formwork according to claim 3 is characterized in that: The internally threaded support rod (50) is provided with a strip-shaped hole (501), and one end of the secondary diagonal support unit (6) passes through the strip-shaped hole (501) and is positioned by a fixing member.

5. The reinforcement device for cast-in-place independent foundation formwork according to claim 4, characterized in that: The secondary diagonal bracing unit (6) comprises a screw rod 2 (62) having a sleeve 2 (61) at one end, the sleeve 2 (61) being hinged to the U-shaped plate (43), the screw rod 3 (63) passing through the hole 3 and the sleeve 2 (61) and threadedly engaging with the nut 3 (64), the other end of the screw rod 2 (62) passing through the strip hole (501), the fixing member comprising a double nut 2 (65) threadedly engaging with the screw rod 2 (62), the inner surface of the double nut 2 (65) being pressed onto the internally threaded support rod (50).

6. The reinforcement device for cast-in-place independent foundation formwork according to claim 4 or 5, characterized in that: The bottom of the internally threaded support rod (50) is provided with a pointed portion (54) for inserting into the foundation pit (1).

7. The reinforcement device for cast-in-place independent foundation formwork according to claim 6, characterized in that: The internally threaded support rod (50) is provided with a baffle (55) spaced from the tip (54), and the baffle (55) is in blocking cooperation with the foundation pit (1).

8. The reinforcement device for cast-in-place independent foundation formwork according to any one of claims 2 to 5 and 7, characterized in that: A plurality of wooden squares (11) are arranged between the vertical board (41) and the top layer formwork (2) or between the vertical board (41) and the other layer formwork (3).

9. The reinforcement device for cast-in-place independent foundation formwork according to any one of claims 2-5 and 7, characterized in that: The vertical plate (41) is provided with a bolt group (12) connected to the top layer formwork (2) or to the other layer formwork (3).

10. The reinforcement device for cast-in-place independent foundation formwork according to any one of claims 4-5 and 7, characterized in that: A supporting cross bar (7) is provided between the top layer template (2) and the other layer templates (3).

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