Box girder inner mold drawing device

Abstract

The utility model relates to the technical field of box girder formworks, and discloses a box girder inner formwork drawing device which comprises a side formwork, a top formwork and a front installation piece, a fixed vertical rod is fixedly installed on the side formwork, and a fixed inclined rod is fixedly installed on the top formwork. A rear installation part is movably installed on the front installation part, and a containing cavity capable of containing the fixed vertical rod and the fixed inclined rod is formed in a whole formed by the front installation part and the rear installation part. The side formworks and the top formwork can be quickly spliced, manual slow hole alignment and fastening are not needed, operation is more convenient and faster, and efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of box beam templates, in particular to a box beam inner template drawing device. Background Art

[0002] Box beam is a type of beam in bridge engineering, which is hollow inside and has flanges on both sides of the upper part. Box beams of reinforced concrete structure are divided into prefabricated box beams and cast-in-place box beams. Box beams prefabricated in an independent site can be erected with a bridge erection machine after the lower part of the project is completed, which can speed up the progress of the project and save construction time.

[0003] The existing patent document with publication number CN208197109U discloses a pull-out type small box steel beam for construction, including a moving device, a positioning device is arranged above the moving device, a base is arranged in the middle position behind the positioning device, a concrete seat is arranged above the base, an inner mold is installed above the concrete seat, the inner mold is connected to the positioning device through a pull-out piece, a box beam is tightly installed on the outside of the inner mold, the lower end of the box beam is connected to the base and the concrete seat, side molds are arranged on the left and right sides of the box beam, and the lower side of the side mold is connected to the positioning device; the inner mold includes an inner upper mold, an inner side mold, a telescopic cylinder, and an inner base, inner side molds are installed on the left and right sides of the inner upper mold, the inner upper mold and the inner mold are connected to the inner base through a telescopic cylinder, and one end of the inner base is fixedly connected to one end of the pull-out piece.

[0004] However, the above device has the following problems when used:

[0005] The inner mold is generally divided into side mold and top mold, which need to be spliced ​​during operation. The existing technology requires manual alignment of each plate, and then fastening with bolts and nuts. The splicing activity leads to low efficiency and affects the construction progress.

[0006] Therefore, we propose a box girder inner mold pulling device to solve the above problems. Utility Model Content

[0007] The utility model aims to solve the problems existing in the prior art and proposes a box girder inner mold pulling device, which can quickly splice the side mold and the top mold without manual slow movement of holes and fastening, making the operation more convenient and more efficient.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A box girder inner mold pulling device comprises a side mold, a top mold and a front mounting member, wherein a fixed vertical rod is fixedly mounted on the side mold, and a fixed diagonal rod is fixedly mounted on the top mold;

[0010] A rear mounting piece is movably mounted on the front mounting piece, and a receiving cavity for receiving a fixed vertical rod and a fixed oblique rod is provided in a whole body formed by the front mounting piece and the rear mounting piece.

[0011] Preferably, there are two side formworks, and the two side formworks are symmetrically installed about the vertical center axis of the top formwork.

[0012] Preferably, a first edge fixing strip is fixedly mounted on the rear mounting member, a second edge fixing strip is fixedly mounted on the front mounting member, connecting members are fixedly mounted on the first edge fixing strip at equal intervals, the second edge fixing strip is provided with matching holes matching the connecting members at corresponding positions, and nuts are provided on the connecting members.

[0013] Preferably, a thread groove is provided on a side of the connecting member facing away from the first edge fixing strip, and the nut and the connecting member are connected by threaded cooperation.

[0014] Preferably, the two side formworks are fixedly mounted with extended plates, and the two sides of the side formworks are fixedly mounted with receiving plates, the receiving plates are matched with the extended plates, and the two plates can together form a rectangular parallelepiped structure.

[0015] Preferably, the front mounting piece and the rear mounting piece can be spliced ​​together to form a structure similar in appearance to a three-way pipe.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) The utility model is provided with a side template, a top template, a fixed vertical rod, a fixed diagonal rod, a front mounting part and a rear mounting part. When the front mounting part and the rear mounting part are combined, the fixed vertical rod and the fixed diagonal rod respectively drive the side template and the top template to make fine position adjustments. When the front mounting part 5 and the rear mounting part are completely fitted together, the accommodating cavity is completely formed. The centers of the fixed vertical rod and the two fixed diagonal rods are in the same plane, thus completing the rapid splicing of the side template and the top template without the need for manual slow movement of the holes and tightening. The operation is more convenient and more efficient.

[0018] (2) The utility model is provided with a side formwork, a top formwork, a protruding plate and a receiving plate. During installation, the protruding plate is placed on the receiving plate, and the receiving plate can provide a certain support to the protruding plate, thereby ensuring the stability of the side formwork. In addition, the gap between the protruding plate and the receiving plate is not in a vertical line, which can prevent the poured concrete from falling through the gap and affecting the box girder forming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a box beam inner mold pulling device proposed by the utility model;

[0020] Figure 2This is a schematic diagram of the overall structure of the front mounting part and the rear mounting part of the box beam inner mold pulling device proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the docking principle of the front mounting part and the rear mounting part of the box beam inner mold pulling device proposed by the utility model;

[0022] Figure 4 The utility model provides a schematic diagram of the installation positions of the extension plate and the receiving plate of the box beam inner mold pulling device.

[0023] In the figure: 1. side formwork; 2. top formwork; 3. fixed vertical rod; 4. fixed diagonal rod; 5. front mounting member; 6. rear mounting member; 7. first edge fixing strip; 8. second edge fixing strip; 9. nut; 10. accommodating cavity; 11. connecting member; 12. adapter hole; 13. extending plate; 14. receiving plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figures 1 to 4 A box girder inner mold pulling device comprises a side mold plate 1, a top mold plate 2 and a front mounting member 5, wherein a fixed vertical rod 3 is fixedly mounted on the side mold plate 1, and a fixed diagonal rod 4 is fixedly mounted on the top mold plate 2;

[0026] The side formwork 1 and the top formwork 2 together form the inner formwork of the box girder, which is convenient for casting activities.

[0027] A rear mounting member 6 is movably mounted on the front mounting member 5 , and a receiving cavity 10 for receiving the fixed vertical rod 3 and the fixed diagonal rod 4 is provided in the whole formed by the front mounting member 5 and the rear mounting member 6 .

[0028] When in use, it is only necessary to roughly align the side template 1 and the top template 2, and then make the fixed vertical rod 3 and the fixed diagonal rod 4 fit with the rear mounting part 6, and then operate the front mounting part 5 to combine the front mounting part 5 and the rear mounting part 6, and the fixed vertical rod 3 and the two fixed diagonal rods 4 will slowly and completely be located in the accommodating cavity 10 therebetween.

[0029] When the front mounting part 5 and the rear mounting part 6 are combined, the fixed vertical rod 3 and the fixed diagonal rod 4 respectively drive the side template 1 and the top template 2 to make slight position adjustments. When the front mounting part 5 and the rear mounting part 6 are completely fitted together, the accommodating cavity 10 is completely formed, and the centers of the fixed vertical rod 3 and the two fixed diagonal rods 4 are in the same plane, thus completing the rapid splicing of the side template 1 and the top template 2. There is no need to manually move the holes slowly and tighten them, so the operation is more convenient and efficient.

[0030] When pulling, the rope on the winch can be directly tied to the whole formed by the front mounting member 5 and the rear mounting member 6. Since the whole is located in the center of the whole device, the pulling effect can be guaranteed.

[0031] There are two side formworks 1 , and the two side formworks 1 are installed symmetrically about the vertical center axis of the top formwork 2 .

[0032] A first edge fixing strip 7 is fixedly mounted on the rear mounting member 6, a second edge fixing strip 8 is fixedly mounted on the front mounting member 5, connecting members 11 are fixedly mounted on the first edge fixing strip 7 at even intervals, and the second edge fixing strip 8 is provided with matching holes 12 matched with the connecting members 11 at corresponding positions, and nuts 9 are provided on the connecting members 11.

[0033] A thread groove is formed on the side of the connecting member 11 facing away from the first edge fixing strip 7 , and the nut 9 is connected to the connecting member 11 through threaded cooperation.

[0034] When the rear mounting member 6 is aligned with the front mounting member 5, the first edge fixing strip 7 and the second edge fixing strip 8 are in a fitting relationship. At this time, the connecting member 11 passes through the corresponding adapter hole 12, and then the nut 9 is installed on the passed part to complete the stable connection activity of the rear mounting member 6 and the front mounting member 5.

[0035] The two side formworks 1 are fixedly mounted with extended plates 13 , and the two sides of the side formworks 1 are fixedly mounted with receiving plates 14 . The receiving plates 14 are matched with the extended plates 13 , and the two can together form a rectangular parallelepiped structure.

[0036] During installation, the protruding plate 13 is placed on the receiving plate 14. The receiving plate 14 can provide certain support for the protruding plate 13, thereby ensuring the stability of the side formwork 1. The gap between the protruding plate 13 and the receiving plate 14 is not in a vertical line, which can prevent the poured concrete from falling through the gap and affecting the box girder forming effect.

[0037] The front mounting member 5 and the rear mounting member 6 can be assembled together to form a structure similar to a three-way pipe in appearance.

[0038] The working process of the utility model is as follows: first, the box girder inner mold is installed, so that the side mold 1 and the top mold 2 are preliminarily aligned, and then the fixed vertical rod 3 and the fixed diagonal rod 4 are fitted with the rear installation member 6, and then the front installation member 5 is installed.

[0039] When the rear mounting member 6 is aligned with the front mounting member 5, the first edge fixing strip 7 and the second edge fixing strip 8 are in a fitting relationship. At this time, the connecting member 11 passes through the corresponding adapter hole 12, and then the nut 9 is installed on the passed part to complete the stable connection activity of the rear mounting member 6 and the front mounting member 5.

[0040] When the front mounting part 5 and the rear mounting part 6 are combined, the fixed vertical rod 3 and the fixed diagonal rod 4 respectively drive the side template 1 and the top template 2 to make slight position adjustments. When the front mounting part 5 and the rear mounting part 6 are completely fitted together, the accommodating cavity 10 is completely formed, and the centers of the fixed vertical rod 3 and the two fixed diagonal rods 4 are in the same plane, thus completing the rapid splicing of the side template 1 and the top template 2. There is no need to manually move the holes slowly and tighten them, so the operation is more convenient and efficient.

[0041] When the subsequent forming is completed and the device is pulled out, the rope on the winch can be directly tied to the whole formed by the front mounting member 5 and the rear mounting member 6. Since the whole is located in the center of the whole device, the pulling effect can be guaranteed.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A box girder inner mold pulling device, comprising a side mold (1), a top mold (2) and a front mounting member (5), characterized in that: A fixed vertical rod (3) is fixedly installed on the side template (1), and a fixed diagonal rod (4) is fixedly installed on the top template (2); A rear mounting member (6) is movably mounted on the front mounting member (5), and a receiving cavity (10) capable of receiving a fixed vertical rod (3) and a fixed diagonal rod (4) is provided in the whole formed by the front mounting member (5) and the rear mounting member (6).

2. A box beam inner mold pulling device according to claim 1, characterized in that: The number of the side templates (1) is two, and the two side templates (1) are installed symmetrically about the vertical center axis of the top template (2).

3. A box beam inner mold pulling device according to claim 1, characterized in that: A first edge fixing strip (7) is fixedly mounted on the rear mounting member (6), a second edge fixing strip (8) is fixedly mounted on the front mounting member (5), connecting members (11) are fixedly mounted on the first edge fixing strip (7) at equal intervals, the second edge fixing strip (8) is provided with matching holes (12) matching with the connecting members (11) at corresponding positions, and nuts (9) are provided on the connecting members (11).

4. A box beam inner mold pulling device according to claim 1, characterized in that: A thread groove is provided on the side of the connecting piece (11) facing away from the first edge fixing strip (7), and the nut (9) and the connecting piece (11) are connected through threaded matching.

5. A box beam inner mold pulling device according to claim 1, characterized in that: The two side templates (1) are fixedly mounted with extended plates (13), and the two sides of the side template (1) are fixedly mounted with receiving plates (14). The receiving plates (14) are matched with the extended plates (13), and the two can together form a rectangular parallelepiped structure.

6. A box beam inner mold pulling device according to claim 1, characterized in that: The front mounting piece (5) and the rear mounting piece (6) can be spliced ​​together to form a structure similar in appearance to a three-way pipe.

Images