Fabricated bridge concrete prefabricated steel formwork

Abstract

The utility model belongs to the field of prefabricated steel formworks, and particularly relates to an assembly type bridge concrete prefabricated steel formwork which comprises two symmetrically-distributed steel formworks, a reinforcing frame is welded to the outer side of each steel formwork, the two steel formworks are in common contact with a connecting strip, auxiliary supporting mechanisms are arranged on the outer sides of the reinforcing frames, and the reinforcing frames are connected with the connecting strip. A plurality of evenly-distributed connecting pipes are fixedly connected to the outer side of the connecting strip, a connecting column is fixedly connected to the side, close to the connecting strip, of the reinforcing frame, and an L-shaped frame is fixedly connected to the outer side of the steel formwork. The connecting strips, the limiting frames, the connecting pipes and other structures are additionally arranged on the outer side of the steel formwork, when the steel formwork needs to be assembled, the connecting columns can be inserted into the connecting pipes in advance, then the limiting frames are driven by the elastic force of the springs to slide into the L-shaped frames, and therefore the steel formwork can be limited in the vertical direction; therefore, the steel formwork is more convenient to assemble.

Description

Technical Field

[0001] This utility model relates to the field of precast steel formwork technology, specifically to a precast steel formwork for assembled bridge concrete. Background Technology

[0002] When constructing bridges, concrete is poured into precast steel formwork. Once the concrete has set, precast bridge components are obtained. These components are then assembled on-site to form the bridge. To facilitate the transportation of precast steel formwork, it is typically assembled, allowing it to be disassembled into multiple parts for transport. However, existing steel formwork requires various mechanical supports and bolts for assembly, with the bolts located at the longitudinal joints of the formwork, making assembly inconvenient. Therefore, improvements to the existing technology are necessary. Utility Model Content

[0003] The purpose of this utility model is to provide a prefabricated steel formwork for bridge concrete, which solves the problems of steel formwork requiring auxiliary machinery for support and being inconvenient to assemble.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a precast steel formwork for assembled bridge concrete, comprising two symmetrically distributed steel formworks, each steel formwork having a reinforcing frame welded to its outer side, a connecting strip in common contact between the two steel formworks, an auxiliary support mechanism provided on the outer side of the reinforcing frame, multiple evenly distributed connecting pipes fixedly connected to the outer side of the connecting strip, a connecting column fixedly connected to the side of the reinforcing frame near the connecting strip, an L-shaped frame fixedly connected to the outer side of the steel formwork, a fixing plate fixedly connected to the middle of the outer side of the connecting strip, a connecting nail slidably connected inside the fixing plate, a limit frame fixedly connected to the upper end of the connecting nail, and a spring provided on the outer side of the connecting nail.

[0005] Preferably, the connecting column is slidably connected to the connecting pipe, and the connecting pipe is slidably connected to the steel formwork. The connecting column can limit the position of the steel formwork through the connecting pipe.

[0006] Preferably, the limiting frame is slidably connected to the L-shaped frame and to the steel template, and the limiting frame can limit the steel template through the L-shaped frame.

[0007] Preferably, the limiting frame is slidably connected to the connecting strip, and the connecting pin is slidably connected to the connecting strip, and the connecting pin can drive the limiting frame to move.

[0008] Preferably, one end of the spring is fixedly connected to the fixing plate, and the other end of the spring is fixedly connected to the connecting pin. The spring can automatically reset the connecting pin through its elastic force.

[0009] Preferably, the auxiliary support mechanism includes a hinge frame, and two pairs of symmetrically distributed hinge frames are fixedly connected to the outer side of the reinforcing frame. Each pair of hinge frames is hinged to a support frame inside. The support frame is connected to a screw rod inside by a thread. The lower end of the screw rod is mounted with a support plate through a bearing. The screw rod can adjust the support height of the support plate by threaded engagement with the support frame.

[0010] Preferably, a rocker arm is fixedly connected to the upper end of the screw, and a rubber plate is fixedly connected to the lower end of the support plate. The rocker arm can drive the screw to rotate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds connecting strips, limiting frames, and connecting pipes to the outside of the steel formwork. When the steel formwork needs to be assembled, the connecting column can be inserted into the inside of the connecting pipe in advance. Then, the limiting frame can be slid into the inside of the L-shaped frame by the elastic force of the spring, so as to complete the vertical limiting of the steel formwork, thereby making the steel formwork easier to assemble.

[0013] 2. This utility model adds support frames, screws and support plates to the outside of the steel formwork. During the assembly of the steel formwork, the support frames and support plates can support the steel formwork, so that no other mechanical equipment is needed for support. In addition, the support frames can be folded and stored during transportation to reduce the space occupied. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 A 3D view of the steel formwork;

[0016] Figure 3 For the present utility model Figure 1 A 3D view of the connecting strip;

[0017] Figure 4 For the present utility model Figure 1 A 3D magnified view of the screw;

[0018] Figure 5 For the present utility model Figure 1 Enlarged view of the A-section structure;

[0019] Figure 6 For the present utility model Figure 5 A 3D magnified view of the limit frame.

[0020] In the diagram: 1. Steel formwork; 2. Reinforcing frame; 3. Connecting strip; 4. Auxiliary support mechanism; 6. Connecting pipe; 7. Connecting column; 8. L-shaped frame; 9. Fixing plate; 10. Connecting nail; 11. Limiting frame; 12. Spring; 41. Hinge frame; 42. Support frame; 43. Screw; 44. Support plate; 45. Rubber plate; 46. Rocker arm. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 A precast steel formwork for assembled bridge concrete includes two symmetrically distributed steel formworks 1. Each steel formwork 1 has a reinforcing frame 2 welded to its outer side. The two steel formworks 1 are in common contact with a connecting strip 3. An auxiliary support mechanism 4 is provided on the outer side of the reinforcing frame 2. Multiple evenly distributed connecting pipes 6 are fixedly connected to the outer side of the connecting strip 3. A connecting column 7 is fixedly connected to the side of the reinforcing frame 2 near the connecting strip 3. An L-shaped frame 8 is fixedly connected to the outer side of the steel formwork 1. A fixing plate 9 is fixedly connected to the middle of the outer side of the connecting strip 3. A connecting nail 10 is slidably connected inside the fixing plate 9. A limit frame 11 is fixedly connected to the upper end of the connecting nail 10. A spring 12 is provided on the outer side of the connecting nail 10.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 The connecting column 7 is slidably connected to the connecting pipe 6, and the connecting pipe 6 is slidably connected to the steel template 1. The connecting column 7 can limit the steel template 1 through the connecting pipe 6. The limiting frame 11 is slidably connected to the L-shaped frame 8, and the limiting frame 11 is slidably connected to the steel template 1. The limiting frame 11 can limit the steel template 1 through the L-shaped frame 8. The limiting frame 11 is slidably connected to the connecting strip 3. The connecting nail 10 is slidably connected to the connecting strip 3. The connecting nail 10 can drive the limiting frame 11 to move. One end of the spring 12 is fixedly connected to the fixing plate 9, and the other end of the spring 12 is fixedly connected to the connecting nail 10. The spring 12 can drive the connecting nail 10 to automatically reset through its elastic force.

[0024] Please see Figure 1 , Figure 2 , Figure 4The auxiliary support mechanism 4 includes a hinge frame 41. Two pairs of symmetrically distributed hinge frames 41 are fixedly connected to the outside of the reinforcing frame 2. Each pair of hinge frames 41 is hinged to a support frame 42. The support frame 42 is connected to a screw 43 by a thread. The lower end of the screw 43 is mounted with a support plate 44 through a bearing. The screw 43 can adjust the support height of the support plate 44 by threaded engagement with the support frame 42. The upper end of the screw 43 is fixedly connected to a rocker arm 46. The lower end of the support plate 44 is fixedly connected to a rubber plate 45. The rocker arm 46 can drive the screw 43 to rotate.

[0025] The specific implementation process of this utility model is as follows: When in use, the connecting strip 3 is placed between the two steel templates 1, and then the two steel templates 1 are closed. During the mold closing process, the limiting frame 11 is pulled upward. The limiting frame 11 can be moved by the connecting nail 10 and the spring 12 is compressed. When the connecting post 7 on the outside of the two steel templates 1 is inserted into the inside of the connecting pipe 6, the limiting frame 11 is released, the spring 12 is reset, and the spring 12 can drive the limiting frame 11 to slide into the inside of the L-shaped frame 8 through the elastic force to complete the mold closing.

[0026] After the mold is closed, the support frame 42 is flipped over. After the support frame 42 is flipped and perpendicular to the end face of the steel template 1, the rocker arm 46 is rotated. The rocker arm 46 drives the screw 43 to rotate. During the rotation, the screw 43 can drive the support plate 44 to move downward through the threaded engagement with the support frame 42. When the rubber plate 45 under the support plate 44 contacts the ground, it can support the steel template 1, making the steel template 1 more stable after the mold is closed.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated steel formwork for concrete of an assembled bridge, comprising two symmetrically distributed steel formworks (1), characterized in that: The outer side of each steel formwork (1) is welded with a reinforcing frame (2), two steel formworks (1) are jointly contacted with a connecting strip (3), the outer side of the reinforcing frame (2) is provided with an auxiliary supporting mechanism (4), the outer side of the connecting strip (3) is fixedly connected with a plurality of uniformly distributed connecting pipes (6), the side of the reinforcing frame (2) close to the connecting strip (3) is fixedly connected with a connecting column (7), the outer side of the steel formwork (1) is fixedly connected with an L-shaped frame (8), the outer side of the connecting strip (3) is fixedly connected with a fixed plate (9), the inside of the fixed plate (9) is slidably connected with a connecting nail (10), the upper end of the connecting nail (10) is fixedly connected with a limiting frame (11), and the outer side of the connecting nail (10) is provided with a spring (12).

2. The prefabricated steel formwork for concrete of a fabricated bridge according to claim 1, characterized in that: The connecting column (7) is slidably connected with the connecting pipe (6), and the connecting pipe (6) is slidably connected with the steel formwork (1).

3. The prefabricated steel formwork for concrete of a fabricated bridge according to claim 1, characterized in that: The limiting frame (11) is slidably connected with the L-shaped frame (8), and the limiting frame (11) is slidably connected with the steel formwork (1).

4. The prefabricated steel formwork for concrete of a fabricated bridge according to claim 1, characterized in that: The limiting frame (11) is slidably connected with the connecting strip (3), and the connecting nail (10) is slidably connected with the connecting strip (3).

5. The prefabricated steel formwork for concrete of a fabricated bridge according to claim 1, characterized in that: One end of the spring (12) is fixedly connected with the fixed plate (9), and the other end of the spring (12) is fixedly connected with the connecting nail (10).

6. The prefabricated steel formwork for concrete of a fabricated bridge according to claim 1, characterized in that: The auxiliary supporting mechanism (4) comprises a hinged frame (41), the outer side of the reinforcing frame (2) is fixedly connected with two pairs of symmetrically distributed hinged frames (41), the inside of each pair of hinged frames (41) is jointly hinged with a supporting frame (42), the inside of the supporting frame (42) is threadedly connected with a screw rod (43), and the lower end of the screw rod (43) is mounted with a supporting plate (44) through a bearing.

7. The prefabricated steel formwork for concrete of a fabricated bridge according to claim 6, characterized in that: The upper end of the screw rod (43) is fixedly connected with a rocker arm (46), and the lower end of the supporting plate (44) is fixedly connected with a rubber plate (45).

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