Prefabricated box girder hydraulic formwork

Abstract

The utility model relates to the technical field of prefabricated box girder pouring, in particular to a prefabricated box girder hydraulic formwork which comprises a bottom formwork and side formworks. The bottom die comprises a bottom die plate; the side mold comprises a side mold plate, a supporting assembly supporting the side mold plate, a first hydraulic cylinder vertically arranged below the supporting assembly and a second hydraulic cylinder horizontally arranged on the side, away from the side mold plate, of the first hydraulic cylinder, and the lower end of the side mold plate is in contact connection with the top face of the bottom mold plate. A first mounting seat is arranged below the first hydraulic cylinder, the first hydraulic cylinder is fixed to the first mounting seat, an output shaft of the second hydraulic cylinder is connected with the first mounting seat, and a vibration motor is arranged on the side, away from the prefabricated box girder, of the side formwork. Through movement of the output ends of the first hydraulic cylinder and the second hydraulic cylinder, the side formwork can be separated from the prefabricated box girder, demolding is rapid and convenient, and the vibration motor can vibrate to assist demolding during demolding.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated box beam casting, and more specifically, particularly relates to a prefabricated box beam hydraulic template. Background Art

[0002] Box girder is a type of beam in bridge engineering. The inner cavity of the box girder is characterized by a particularly large inner cavity in the middle and flanges on both sides of the upper part, similar to a box. When the span of the bridge is large, the box girder is the best structural form. Its closed thin-walled section has great torsional rigidity, which is particularly beneficial for curved bridges and bridges constructed with cantilever. At present, in the process of bridge construction, box girders usually have two construction processes: cast-in-place and prefabricated. Compared with cast-in-place box girders, prefabricated box girders have the advantages of low cost, fast construction speed, small impact of concrete shrinkage on bridge structure, and standardized production. The production of prefabricated box girders requires the use of hydraulic formwork that is compatible with them.

[0003] The prior art, such as the prefabricated box girder hydraulic formwork disclosed in publication numbers CN219445475U and CN116330442A, has difficulty in demoulding the side formwork after casting the prefabricated box girder, which requires a lot of manpower and time, and presents great difficulties during construction. Therefore, it is necessary to provide a prefabricated box girder hydraulic formwork that is easy to demould and move for rapid construction. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and to provide a prefabricated box beam hydraulic formwork which is convenient for demoulding, moving and fast construction.

[0005] A prefabricated box girder hydraulic formwork, comprising a bottom formwork and a side formwork; the bottom formwork comprises a bottom formwork; the side formwork comprises a side formwork, a support assembly supporting the side formwork, a first hydraulic cylinder vertically arranged below the support assembly, and a second hydraulic cylinder horizontally arranged on a side of the first hydraulic cylinder away from the side formwork, the lower end of the side formwork is in contact and connected with the top surface of the bottom formwork, a first mounting seat is arranged below the first hydraulic cylinder, the first hydraulic cylinder is fixed on the first mounting seat, the output shaft of the second hydraulic cylinder is connected to the first mounting seat, and a vibration motor is arranged on a side of the side formwork away from the prefabricated box girder.

[0006] Furthermore, a first base is arranged below the first mounting seat, a mounting plate is vertically arranged on one end of the top surface of the first base away from the side template, the second hydraulic cylinder is fixedly connected to the mounting plate, and a moving wheel is arranged on the bottom surface of the first mounting seat.

[0007] Furthermore, a slide rail is arranged on the ground below the first base, and a track wheel matched with the slide rail is arranged on the bottom surface of the first base.

[0008] Furthermore, the side formwork includes a first formwork and a second formwork fixed to the upper end of the first formwork, the first formwork is arranged at an angle and the bottom surface is in contact with the top surface of the bottom formwork, the top surface of the second formwork is arranged at an angle, and the support assembly includes a support base plate, one end of the support base plate is fixedly connected to the first formwork, and the other end is vertically fixed with a support vertical plate, and the support vertical plate is fixedly connected to an end of the second formwork away from the first formwork.

[0009] Furthermore, the support assembly also includes a stiffening plate, which is horizontally arranged above the support base plate, and two ends of the stiffening plate are respectively connected to the first template and the support vertical plate.

[0010] Furthermore, a baffle is vertically arranged on the top surface of the second template.

[0011] Furthermore, guard plates are arranged on both sides of the bottom template, slots are arranged on both sides of the bottom template, the guard plates are arranged obliquely and a plug plate is arranged at the bottom, and the distance between the two guard plates increases with the increase of height.

[0012] Furthermore, the plug board is in an L-shaped structure, the horizontal section of the plug board is inserted into the slot, and the vertical section of the plug board is in contact with the side surface of the bottom template.

[0013] Furthermore, connecting bolts are vertically arranged on the bottom template, and the connecting bolts connect the plug plate and the bottom template.

[0014] Furthermore, a foundation pit is provided on the ground below the bottom template, a third hydraulic cylinder is provided on the bottom surface of the bottom template, a second base is fixed to the lower end of the third hydraulic cylinder, and the second base is provided in the foundation pit.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The prefabricated box beam hydraulic formwork in the utility model is provided with a first hydraulic cylinder and a second hydraulic cylinder. When the prefabricated box beam is demoulded after being poured and solidified, the side formwork can be separated from the prefabricated box beam through the movement of the output ends of the first hydraulic cylinder and the second hydraulic cylinder, and demoulding is fast and convenient. By providing a vibration motor on the side formwork, the vibration motor can not only achieve uniform auxiliary filling through vibration when pouring the prefabricated box beam, but also can vibrate to assist demoulding when demoulding.

[0017] In the prefabricated box beam hydraulic formwork of the utility model, the side formwork is arranged above the bottom formwork, and the lower end of the side formwork is in contact and connected with the top surface of the bottom formwork, so that the bottom formwork can be used in combination with the side formworks of different specifications to cast prefabricated box beams of different specifications, which is convenient for the turnover of the bottom formwork. By arranging guard plates on both sides of the bottom formwork, slurry leakage is effectively prevented. The guard plates are detachably connected to the bottom formwork and can be disassembled after casting is completed, so that the first hydraulic cylinder and the second hydraulic cylinder can drive the side formwork to move for demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a front view of the prefabricated box beam hydraulic formwork in the embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the overall structure of the prefabricated box beam hydraulic formwork in the embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the overall structure of the prefabricated box beam hydraulic formwork in the embodiment of the utility model from another perspective.

[0022] In the figure: 1, bottom template; 2, first hydraulic cylinder; 3, second hydraulic cylinder; 4, first mounting seat; 5, vibration motor; 6, first base; 7, mounting plate; 8, moving wheel; 9, slide rail; 10, track wheel; 11, first template; 12, second template; 13, supporting bottom plate; 14, supporting vertical plate; 15, stiffening plate; 16, baffle; 17, guard plate; 18, plug plate; 19, connecting bolts; 20, third hydraulic cylinder; 21, second base. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, the hydraulic formwork of the prefabricated box beam in this embodiment includes a bottom formwork and a side formwork. The bottom formwork includes a bottom formwork 1, and the side formwork includes a side formwork, a support assembly, a first hydraulic cylinder 2, and a second hydraulic cylinder 3. The support assembly is used to support the side formwork, and the first hydraulic cylinder 2 and the second hydraulic cylinder 3 drive the side formwork and the support assembly to move in the vertical direction and the horizontal direction respectively. A vibration motor 5 is provided on the side of the side formwork away from the prefabricated box beam.

[0025] In this embodiment, the side formwork includes a first formwork 11 and a second formwork 12 fixed to the upper end of the first formwork 11. The first formwork 11 is tilted and the bottom surface is in contact with the top surface of the bottom formwork 1. The first formwork 11 is adapted to the tilted side surface of the prefabricated box beam. The top surface of the second formwork 12 is tilted and the second formwork 12 is adapted to the lower surface of the top plate of the prefabricated box beam. The support assembly includes a support base plate 13, one end of the support base plate 13 is fixedly connected to the first formwork 11, and the other end of the top surface is vertically fixed with a support vertical plate 14, and the support vertical plate 14 is fixedly connected to the end of the second formwork 12 away from the first formwork 11. The vibration motor 5 can be installed on the side of the first formwork 11 and / or the second formwork 12 away from the prefabricated box beam, and the number of vibration motors 5 can be set according to actual needs.

[0026] In this embodiment, the first hydraulic cylinder 2 is vertically arranged below the support bottom plate 13, the output shaft of the first hydraulic cylinder 2 is connected to the support bottom plate 13, a first mounting seat 4 is arranged below the first hydraulic cylinder 2, and the first hydraulic cylinder 2 is fixed on the first mounting seat 4. The second hydraulic cylinder 3 is horizontally arranged on the side of the first mounting seat 4 away from the first template 11, a first base 6 is arranged below the first mounting seat 4, a mounting plate 7 is vertically arranged on the end of the top surface of the first base 6 away from the side template, the two ends of the second hydraulic cylinder 3 are respectively connected to the first mounting seat 4 and the mounting plate 7, and a moving wheel 8 is arranged on the bottom surface of the first mounting seat 4. Specifically, a plurality of first hydraulic cylinders 2 are arranged below the support bottom plate 13, and the plurality of first hydraulic cylinders 2 are arranged at equal intervals. The specific number of the first hydraulic cylinders 2 is set according to actual needs.

[0027] In this embodiment, a slide rail 9 is provided on the ground below the first base 6, and a track wheel 10 adapted to the slide rail 9 is provided on the bottom surface of the first base 6. Preferably, two slide rails 9 are provided in parallel, and two rows of track wheels 10 symmetrically provided are provided on the ground of the first base 6, and the specific number of track wheels 10 is set according to actual needs. By providing the slide rail 9 and the track wheel 10, it is convenient for the side formwork to move along the length direction of the prefabricated box beam, so as to move to the next section after demoulding.

[0028] In this embodiment, the support assembly further includes a stiffening plate 15, which is horizontally arranged above the support bottom plate 13, and the two ends of the stiffening plate 15 are respectively connected to the first formwork 11 and the support vertical plate 14. The stability of the supporting side formwork of the support assembly can be effectively improved by providing the stiffening plate 15. A baffle 16 is vertically arranged on the top surface of the second side formwork, and the baffle 16 is adapted to the end of the top plate of the prefabricated box beam, so as to facilitate the casting of the top plate of the prefabricated box beam.

[0029] In this embodiment, the width of the bottom template 1 is wider than the width of the bottom surface of the prefabricated box beam, and guard plates 17 are provided on both sides of the bottom template 1. The guard plates 17 are inclined, and the distance between the two guard plates 17 increases with the height. By providing the guard plates 17, if slurry leakage occurs between the first template 11 and the bottom template 1, the guard plates 17 can effectively prevent the slurry from dripping to the bottom of the bottom template 1. Preferably, the guard plates 17 are detachably connected to the bottom template 1. Specifically, slots are provided on both sides of the bottom template 1, and a plug plate 18 is fixedly provided at the bottom of the guard plate 17. The plug plate 18 is in an L-shaped structure. The horizontal section of the plug plate 18 is inserted into the slot, and the vertical section of the plug plate 18 abuts against the side of the bottom template 1. A connecting bolt 19 is vertically arranged on the bottom formwork 1, and the connecting bolt 19 connects the plug plate 18 to the bottom formwork 1. After the prefabricated box girder is grouted and solidified for a period of time, when demoulding, the plug plate 18 and the guard plate 17 are disassembled by removing the connecting bolt 19, so that the first hydraulic cylinder 2 and the second hydraulic cylinder 3 can drive the side formwork to move for demoulding.

[0030] In this embodiment, a foundation pit is provided on the ground below the bottom template 1, a third hydraulic cylinder 20 is provided on the bottom surface of the bottom template 1, a second base 21 is fixed to the lower end of the third hydraulic cylinder 20, and the second base 21 is provided in the foundation pit.

[0031] The working principle of the prefabricated box beam hydraulic formwork in this embodiment is:

[0032] By setting the first hydraulic cylinder 2 and the second hydraulic cylinder 3, when the precast box beam is demoulded after being poured and solidified, the first hydraulic cylinder 2 moves the second hydraulic cylinder 3 to realize the side formwork being separated from the precast box beam, and demoulding is quick and convenient. By setting the vibration motor 5 on the side formwork, the vibration motor 5 can not only realize the auxiliary filling uniformity through vibration when pouring the precast box beam, but also can vibrate to assist demoulding when demoulding. The side formwork is arranged above the bottom formwork 1, and the lower end of the side formwork is in contact and connected with the top surface of the bottom formwork 1, so that the bottom formwork 1 can be used in combination with side formworks of different specifications to pour precast box beams of different specifications, which is convenient for the turnover of the bottom formwork 1.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A prefabricated box beam hydraulic formwork, characterized in that: Including bottom mold and side mold; The bottom mold comprises a bottom mold plate (1); The side formwork comprises a side formwork, a support assembly supporting the side formwork, a first hydraulic cylinder (2) vertically arranged below the support assembly, and a second hydraulic cylinder (3) horizontally arranged on a side of the first hydraulic cylinder (2) away from the side formwork, the lower end of the side formwork is in contact with and connected to the top surface of the bottom formwork (1), a first mounting seat (4) is arranged below the first hydraulic cylinder (2), the first hydraulic cylinder (2) is fixed on the first mounting seat (4), an output shaft of the second hydraulic cylinder (3) is connected to the first mounting seat (4), and a vibration motor (5) is arranged on a side of the side formwork away from the prefabricated box beam.

2. The prefabricated box beam hydraulic formwork according to claim 1 is characterized in that: A first base (6) is arranged below the first mounting seat (4); a mounting plate (7) is vertically arranged on one end of the top surface of the first base (6) away from the side formwork; the second hydraulic cylinder (3) is fixedly connected to the mounting plate (7); and a moving wheel (8) is arranged on the bottom surface of the first mounting seat (4).

3. The prefabricated box beam hydraulic formwork according to claim 2 is characterized in that: A slide rail (9) is arranged on the ground below the first base (6), and a track wheel (10) adapted to the slide rail (9) is arranged on the bottom surface of the first base (6).

4. The prefabricated box beam hydraulic formwork according to claim 3 is characterized in that: The side formwork comprises a first formwork (11) and a second formwork (12) fixed to the upper end of the first formwork (11); the first formwork (11) is arranged obliquely and the bottom surface is in contact with the top surface of the bottom formwork (1); the top surface of the second formwork (12) is arranged obliquely; the support assembly comprises a support bottom plate (13); one end of the support bottom plate (13) is fixedly connected to the first formwork (11); and the other end is vertically fixed with a support vertical plate (14); the support vertical plate (14) is fixedly connected to one end of the second formwork (12) away from the first formwork (11).

5. The prefabricated box beam hydraulic formwork according to claim 4, characterized in that: The support assembly also includes a stiffening plate (15), which is horizontally arranged above the support base plate (13), and the two ends of the stiffening plate (15) are respectively connected to the first template (11) and the support vertical plate (14).

6. The prefabricated box beam hydraulic formwork according to claim 5, characterized in that: A baffle (16) is vertically arranged on the top surface of the second template (12).

7. The prefabricated box beam hydraulic formwork according to claim 1, characterized in that: Guard plates (17) are arranged on both sides of the bottom template (1), slots are arranged on both sides of the bottom template (1), the guard plates (17) are arranged obliquely and a plug plate (18) is arranged at the bottom, and the distance between the two guard plates (17) increases as the height increases.

8. The prefabricated box beam hydraulic formwork according to claim 7, characterized in that: The inserting plate (18) is in an L-shaped structure, the horizontal section of the inserting plate (18) is inserted into the slot, and the vertical section of the inserting plate (18) is in contact with the side surface of the bottom template (1).

9. The prefabricated box beam hydraulic formwork according to claim 7 or 8, characterized in that: The bottom template (1) is vertically provided with connecting bolts (19), and the connecting bolts (19) connect the plug plate (18) and the bottom template (1).

10. The prefabricated box beam hydraulic formwork according to claim 9, characterized in that: A foundation pit is arranged on the ground below the bottom template (1), a third hydraulic cylinder (20) is arranged on the bottom surface of the bottom template (1), a second base (21) is fixed to the lower end of the third hydraulic cylinder (20), and the second base (21) is arranged in the foundation pit.

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