Quick opposite-pulling-free screw type flood control wall formwork supporting structure

Abstract

The utility model relates to the technical field of hydraulic engineering concrete flood control wall construction, and discloses a fast opposite-pulling-free screw type flood control wall formwork supporting structure which comprises a wall rear steel formwork and a wall front steel formwork which are oppositely arranged, and the top of the wall rear steel formwork is fixedly connected with the top of the wall front steel formwork. The upper end of an upper telescopic supporting rod piece is hinged to the upper portion of the wall rear steel formwork, the lower end of the upper telescopic supporting rod piece is hinged to a concrete flood control wall bottom plate, the lower portion of the wall rear steel formwork is hinged to the upper end of a lower telescopic supporting rod piece, and the lower end of the lower telescopic supporting rod piece is hinged to the concrete flood control wall bottom plate. The lower portion of the wall front steel formwork is connected with a concrete flood control wall bottom plate through a bearing fixing piece. According to the rapid opposite-pulling-free screw type flood control wall formwork supporting structure, the perpendicularity of the formworks and the abutted seams between the steel formworks are adjusted through the upper telescopic supporting rod piece and the lower telescopic supporting rod piece, operation precision is high, and installation is convenient and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to water conservancy project concrete flood prevention wall construction technical field, concretely is a kind of quick exempt from the type flood prevention wall formwork support structure of opposite pull screw rod. BACKGROUND

[0002] Steel formwork is an important link in the construction process of concrete flood prevention wall, and is a key step to ensure the linear type, appearance quality of concrete flood prevention wall and improve the structural performance of flood prevention wall. Although the conventional steel formwork uses opposite pull screw rod and steel pipe fastener for support and fixation, which can effectively play the role of steel formwork support and fixation, but under the background of high requirements for the appearance quality of flood prevention wall in the overall river flood prevention wall, such as the development of current city, the improvement of river landscape and the image of both sides of river, the appearance quality of flood prevention wall fair-faced concrete is directly affected by the overall appearance image of river.

[0003] Compared with the support mode of traditional steel formwork using opposite pull screw rod and steel pipe fastener, it is inevitable to cause the screw hole repair marks of flood prevention wall fair-faced concrete appearance, and the misalignment phenomenon between steel formworks caused by low support precision of steel pipe fastener occurs frequently. Moreover, the conventional support method usually uses water stop screw, which cannot be recycled, wastes opposite pull screw rod steel material, and needs to be repaired in the later period, which wastes labor. The flood prevention wall support system technology needs to be optimized and improved. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of quick exempt from the type flood prevention wall formwork support structure, solve the problem raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of quick exempt from the type flood prevention wall formwork support structure, including oppositely arranged wall rear steel formwork and wall front steel formwork, the top of wall rear steel formwork and wall front steel formwork is fixedly connected, the upper end of upper part telescopic support rod piece is hinged to the upper side of wall rear steel formwork, the lower end of upper part telescopic support rod piece is hinged to concrete flood prevention wall bottom plate, the upper end of lower part telescopic support rod piece is hinged to the lower side of wall rear steel formwork, the lower end of lower part telescopic support rod piece is hinged to concrete flood prevention wall bottom plate, the lower part of wall front steel formwork is connected with concrete flood prevention wall bottom plate by supporting fixing piece.

[0007] As a preferred technical scheme of the utility model, support square wood is arranged between wall front steel formwork and wall rear steel formwork, full wire screw rod is connected at the upper end of wall front steel formwork and wall rear steel formwork, steel backing plate is sleeved at both ends of full wire screw rod, and first nut is threadedly connected at the end of full wire screw rod.

[0008] As a preferred technical scheme of the utility model, the supporting fixing piece is connected with the screw rod embedded part matched with the concrete flood prevention wall bottom plate, and the screw rod embedded part is threadedly connected with the second nut.

[0009] As a preferred technical scheme of the utility model, the side surface of the wall rear steel formwork is provided with the connecting hanging point matched with the upper and lower telescopic supporting rod pieces, and the concrete flood prevention wall bottom plate is provided with the U-shaped embedded part matched with the upper and lower telescopic supporting rod pieces.

[0010] As a preferred technical scheme of the utility model, the included angle between the concrete flood prevention wall bottom plate and the upper telescopic supporting rod piece is between 35° and 60°, and the included angle between the concrete flood prevention wall bottom plate and the lower telescopic supporting rod piece is less than or equal to 20°.

[0011] The utility model has the following advantages:

[0012] The utility model is suitable for a quick anti-pull screw type flood prevention wall formwork supporting structure, adopts the upper and lower telescopic supporting rod pieces to adjust the perpendicularity of the formwork and the joint gap between the steel formworks, high operation precision, and convenient and fast installation, reduces the working strength and labor injury of workers in construction, simultaneously improves the efficiency of the steel formwork supporting operation and the appearance quality of the formed concrete flood prevention wall, can avoid the anti-pull screw of the flood prevention wall steel formwork, saves the steel material, saves the artificial repair of the screw hole on the surface of the flood prevention wall caused by the use of the anti-pull screw, and saves the construction period. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying creative labor.

[0014] Fig. 1 It is a cross-sectional view of the quick anti-pull screw type flood prevention wall formwork supporting structure.

[0015] Fig. 2 It is a view of the wall rear of the quick anti-pull screw type flood prevention wall formwork supporting structure.

[0016] Fig. 3 It is a view of the wall front of the quick anti-pull screw type flood prevention wall formwork supporting structure.

[0017] In the figure: 1, the front of the wall steel formwork; 2, the rear of the wall steel formwork; 3, U-shaped embedded parts; 4, upper telescopic support rod parts; 5, lower telescopic support rod parts; 6, connecting hanging points; 7, full-thread screw rods; 8, steel backing plates; 9, first nuts; 10, supporting square timbers; 11, hanging points; 12, supporting fixed parts; 13, screw rod embedded parts; 14, second nuts; 15, concrete flood control wall bottom plates; 16, design top elevation lines of the flood control wall. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] In one embodiment, referring to Figs. 1-3 A quick anti-pulling screw rod type flood control wall formwork support structure comprises oppositely arranged rear wall steel formwork 2 and front wall steel formwork 1, the top of the rear wall steel formwork 2 and the front wall steel formwork 1 are fixedly connected, the upper end of the upper telescopic support rod part 4 is hingedly connected to the top of the rear wall steel formwork 2, the lower end of the upper telescopic support rod part 4 is hingedly connected to the concrete flood control wall bottom plate 15, the upper end of the lower telescopic support rod part 5 is hingedly connected to the bottom of the rear wall steel formwork 2, the lower end of the lower telescopic support rod part 5 is hingedly connected to the concrete flood control wall bottom plate 15, the side of the rear wall steel formwork 2 is provided with the connecting hanging point 6 hingedly connected to the upper telescopic support rod part 4 and the lower telescopic support rod part 5, and the concrete flood control wall bottom plate 15 is provided with the U-shaped embedded part 3 hingedly connected to the upper telescopic support rod part 4 and the lower telescopic support rod part 5. The rear wall steel formwork 2 is adjusted and fixed by the upper telescopic support rod part 4 and the lower telescopic support rod part 5. The included angle between the concrete flood control wall bottom plate 15 and the upper telescopic support rod part 4 should be between 35° and 60°, and the included angle between the concrete flood control wall bottom plate 15 and the lower telescopic support rod part 5 should not exceed 20°. The adjustable range of the upper telescopic support rod part 4 and the lower telescopic support rod part 5 is greater than 0.5 m, which can effectively reduce the precision requirement of the U-shaped embedded part 3, greatly improve the fault tolerance rate of the U-shaped embedded part 3 when embedded, and improve the adjustable range of the rear wall steel formwork 2. The U-shaped embedded part 3 needs to be effectively welded with the bottom plate reinforcement in the concrete flood control wall bottom plate 15, and the exposed height meets the connection requirement.

[0020] In one embodiment, the lower part of the steel formwork 1 in front of the wall is connected to the concrete flood control wall base slab 15 via a support fixing member 12. A threaded rod embedded part 13, which mates with the concrete flood control wall base slab 15, is threaded through the support fixing member 12, and a second nut 14 is threaded onto the threaded rod embedded part 13. The lower opening of the steel formwork 1 in front of the wall bears the force through the threaded rod embedded part 13 on the flood control wall base slab, and is supported and fixed by the support fixing member 12 and the second nut 14.

[0021] In one embodiment, a supporting timber 10 is provided between the upper ends of the front steel formwork 1 and the rear steel formwork 2. A threaded rod 7 is connected through the upper ends of both the front and rear steel formwork 1 and 2. Steel pads 8 are fitted onto both ends of the threaded rod 7, and a first nut 9 is threaded onto the end of the threaded rod 7. The threaded rod 7, steel pads 8, and first nut 9 connect the upper ends of the front and rear steel formwork 1 and 2, respectively, and the supporting timber 10 provides internal support, thus fixing the steel formwork while ensuring that the flood control wall dimensions meet design requirements.

[0022] The specific construction steps include:

[0023] Step 1: Installation of Embedded Parts

[0024] After the reinforcement of the flood control wall base slab is tied, the U-shaped embedded parts 3 and the threaded rod embedded parts 13 are laid out according to the arrangement and welded firmly to the reinforcement of the concrete flood control wall base slab 15 before the concrete flood control wall base slab 15 is poured.

[0025] Step 2: Positioning of steel formwork 2 behind the wall.

[0026] After the concrete flood control wall base slab 15 is poured, the wall position is marked out according to the design drawings and the ink line is marked. The steel formwork is hoisted through the lifting point 11 on the steel formwork 2 behind the wall, the bottom of the steel formwork 2 behind the wall is aligned with the ink line, and the U-shaped embedded part 3, the upper telescopic support rod 4 and the connecting hanging point 6 are initially assembled and connected, and the hook closing device at both ends of the upper telescopic support rod 4 is tightened.

[0027] Step 3: Adjusting the verticality of the steel formwork behind the wall.

[0028] By rotating the middle steel pipe of the upper retractable support rod 4, it is extended and retracted, thereby adjusting the elevation of the upper opening of the steel formwork 2 around its lower opening. Then, using instruments such as a theodolite, the verticality of the steel formwork 2 is adjusted until it is perpendicular to the concrete flood control wall base slab 15. Next, the U-shaped embedded part 3 at the lower opening of the steel formwork 2, the lower retractable support rod 5, and the connecting hook 6 are connected. After connection, the hook closing devices at both ends of the lower retractable support rod 5 are tightened. At this point, the verticality adjustment and fixation of the steel formwork 2 are complete.

[0029] Step 4: Position and fix the steel formwork 1 in front of the wall.

[0030] After the steel formwork 2 behind the wall is adjusted and fixed, the support fixing part 12 is first passed through the threaded rod embedded part 13. Then, the steel formwork 1 in front of the wall is hoisted and transported to the corresponding position through its upper lifting point 11 using hoisting machinery. The lower opening of the steel formwork 1 in front of the wall is lowered onto the support fixing part 12. Then, the threaded rod 7 is passed through the upper opening of the steel formwork 1 in front of the wall and the steel formwork 2 behind the wall. Then, steel pads 8 are inserted at both ends of the threaded rod 7. Then, the first nut 9 is screwed on both ends of the threaded rod 7. When the internal size is close to the thickness of the flood control wall, the second nut 14 is tightened at the end of the threaded rod embedded part 13. At this time, the lower opening of the steel formwork 1 in front of the wall is fixed. After tightening the second nut 14, the supporting square timber 10 is placed at the position shown in the figure below the threaded rod 7. Finally, the first nut 9 is screwed on both ends of the threaded rod 7. At this time, the steel formwork 1 in front of the wall is fixed. The verticality of the steel formwork 1 in front of the wall and the fixing of the upper opening are fixed by relying on the verticality of the steel formwork 2 behind the wall and the supporting structure. The installation of the steel formwork for the flood control wall is now complete.

[0031] This utility model applies to a rapid, tie-rod-free flood control wall formwork support structure. It utilizes upper and lower retractable support rods 4 and 5 to adjust the verticality of the formwork and the joints between steel formwork sections. This design offers high operational precision and convenient, quick installation, reducing worker workload and labor injuries during construction. It also improves the efficiency of steel formwork support operations and the appearance quality of the finished concrete flood control wall. Furthermore, it eliminates the need for tie rods on the flood control wall steel formwork, saving steel and labor costs associated with repairing tie rod holes on the flood control wall surface, thus shortening the construction period.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid, tie-rod-free flood control wall formwork support structure, characterized in that, The system includes steel formwork behind and in front of the wall, which are arranged opposite to each other. The tops of the steel formwork behind and in front of the wall are fixedly connected. The upper end of an upper retractable support rod is hinged to the upper part of the steel formwork behind the wall, and the lower end of the upper retractable support rod is hinged to the concrete flood control wall base plate. The upper end of a lower retractable support rod is hinged to the lower part of the steel formwork behind the wall, and the lower end of the lower retractable support rod is hinged to the concrete flood control wall base plate. The lower part of the steel formwork in front of the wall is connected to the concrete flood control wall base plate through a support fixing member.

2. The rapid, tie-bar-free flood control wall formwork support structure according to claim 1, characterized in that, Supporting square timbers are installed between the front and rear steel formwork of the wall. The upper ends of the front and rear steel formwork are connected by threaded rods. Steel pads are fitted at both ends of the threaded rods, and a first nut is threaded to the end of the threaded rod.

3. The rapid, tie-bar-free flood control wall formwork support structure according to claim 1, characterized in that, The support fixing component is connected through a threaded rod embedded part that cooperates with the concrete flood control wall base plate, and the threaded rod embedded part is threaded with a second nut.

4. The rapid, tie-bar-free flood control wall formwork support structure according to claim 1, characterized in that, The side of the steel formwork behind the wall is provided with connection points that cooperate with the upper and lower retractable support rods, and the bottom plate of the concrete flood control wall is provided with U-shaped embedded parts that cooperate with the upper and lower retractable support rods.

5. A rapid, tie-bar-free flood control wall formwork support structure according to claim 4, characterized in that, The angle between the concrete flood control wall base plate and the upper telescopic support member is between 35° and 60°, and the angle between the concrete flood control wall base plate and the lower telescopic support member is less than or equal to 20°.

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