Positioning device for mounting bridge steel box girder

Abstract

The utility model discloses a positioning device for mounting a bridge steel box girder, and relates to the technical field of mounting and positioning of steel box girders. Comprising a steel box girder, fixing holes are formed in the two sides of the front face of the steel box girder, and fixing rods are fixedly installed on the two sides of the rear face of the steel box girder; the hanging bracket mechanisms are arranged on the left side and the right side of the steel box girder and used for assisting a crane in transferring the steel box girder; the locking mechanisms and the clamping mechanisms are arranged on the front sides and the rear sides of the steel box girders and used for fixedly connecting the steel box girders. The upper locking block and the lower locking block are pushed through the fixing frame, the connecting spring can be driven to contract, the upper locking block and the lower locking block are fixed in the locking groove through rebounding of the connecting spring in the pushing process of the fixing frame, steel box girders can be fixed, and the utilization rate and stability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box girder installation and positioning, in particular to a positioning device for installing a bridge steel box girder. Background Art

[0002] The cross-sectional shape of the steel box girder is the same as the usual box cross-sectional shape, generally composed of a cover plate, a web plate, a bottom plate and a partition plate. Its closed thin-walled cross-sectional torsional rigidity is large, with good dynamic characteristics and relatively small shrinkage deformation values, and is widely used in large-span structures. However, as the span and weight of the steel box girder increase, the difficulty of its on-site positioning and installation also increases. The conventional installation method is mostly to use a lifting machinery to directly hoist it. In order to improve the accuracy of the hoisting, a positioning device is generally set on the steel box girder, so that the steel box girder can be quickly aligned when spliced.

[0003] For example, a steel box girder assembly and positioning device for a bridge with patent announcement number CN210306438U includes a first steel box girder and a second steel box girder, wherein screw holes are symmetrically opened on the left and right sides and the front and rear ends of the top of the first steel box girder and the second steel box girder, and a first base is placed on the front and rear ends of the right side of the top of the first steel box girder, and the first steel box girder is fixed to the first base by screwing bolts into the inner cavity of the screw holes, and a shell is provided at the top of the first base, and a connecting seat is welded on the right side of the shell, and a motor is connected to the bottom end of the inner cavity of the shell by screws, and one end of the screw is connected to the output end of the motor, and the other end of the screw extends into the inner cavity of the connecting seat and is fixedly connected by a bearing and the inner wall of the connecting seat, and the inner ring of the bearing is interference fit with the outer wall of the screw.

[0004] Although the above equipment can effectively facilitate the assembly and positioning of steel box girders, and is more in line with actual use needs. However, the operation steps of the device for assembling and positioning steel box girders are relatively cumbersome. Before the assembly and after the welding of the steel box girder, it is necessary not only to assemble and disassemble the first base, shell, connecting seat, support seat and second base, but also to disassemble the clamping block, plug rod and support seat, which leads to a waste of time and is not conducive to improving the assembly efficiency between steel box girders. For this reason, we propose a new type of positioning device for the installation of bridge steel box girders. Utility Model Content

[0005] The utility model aims to provide a positioning device for installing a bridge steel box girder to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a positioning device for installing a bridge steel box girder, comprising:

[0007] A steel box girder, wherein fixing holes are arranged on both sides of the front of the steel box girder, and fixing rods are fixedly installed on both sides of the rear of the steel box girder;

[0008] The hanger mechanism is arranged on the left and right sides of the steel box girder to assist the crane in manipulating the steel box girder;

[0009] The locking mechanism and the clamping mechanism are both arranged on the front and rear sides of the steel box beam, and are both used to fix the connection between the steel box beams.

[0010] As a specific solution in the technical solution of this application, the hanger mechanism includes:

[0011] The storage grooves are arranged on the left and right sides of the steel box girder, the inner side of the storage grooves is provided with rotation grooves, the inner side of the rotation grooves is provided with rotation rods, the outer wall of the rotation rods is provided with rotation frames, the other end of the rotation frames is provided with crane holes, and the rotation frames are located in the storage grooves.

[0012] As a specific solution in the technical solution of this application, the locking mechanism includes:

[0013] A fixing frame is installed on both sides of the front of the steel box girder, and the fixing frame is provided with connecting holes, which pass through the upper and lower ends of the fixing frame. Locking grooves are provided on both sides of the rear of the steel box girder, and a connecting spring is installed at the bottom end of the inner side of the locking groove. A concave plate is installed at the other end of the connecting spring, and a lower locking block is installed at the top of the concave plate.

[0014] As a specific solution in the technical solution of the present application, a connecting spring is installed at the top inner side of the locking groove, a fixing cylinder is installed on the outer wall of the connecting spring, a plurality of sliding grooves are arranged on the inner side of the fixing cylinder, a sliding block is installed on the inner side of the sliding groove, the sliding block is located on the outer wall of the concave plate, and a lower locking block is installed on the bottom end of the concave plate.

[0015] As a specific solution in the technical solution of the present application, the lower locking block is tightly fitted with the upper locking block, and the lower locking block and the upper locking block are provided with rounded corners on one side facing outward. When the steel box girder is fixed, the rounded corners provided on the lower locking block and the upper locking block are located on the inner side of the locking groove, and the concave plate at the top of the upper locking block is located on the inner side of the fixed tube.

[0016] As a specific solution in the technical solution of this application, the clamping mechanism includes:

[0017] An installation cabin is set on the front side of the steel box girder, and fixing grooves are set at both ends of the inner side of the installation cabin. The fixing grooves are used to install trapezoidal blocks. A fixing block is installed on the outer wall at one end of the trapezoidal block, and a reciprocating spring is installed on the inside of the fixed block. A push plate is installed at one end of the trapezoidal block, and the push plate is located at both ends of the reciprocating spring.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The positioning device for installing a bridge steel box girder can drive the connection spring to contract by pushing the upper locking block and the lower locking block through the fixing frame. During the pushing process of the fixing frame, the upper locking block and the lower locking block are fixed in the locking groove through the rebound of the connection spring, so that the steel box girders can be fixed, thereby improving the utilization rate and stability of the device.

[0020] At the same time, during the movement of the fixed block in the installation cabin, the trapezoidal block drives the push plate to move, and the push plate drives the reciprocating spring to contract during the movement. When the trapezoidal block moves into the fixed groove, the reciprocating spring rebounds, which can drive the trapezoidal block to limit the steel box girder connection process, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an isometric rear view of the utility model;

[0022] Figure 2 It is an isometric side elevation view of the utility model;

[0023] Figure 3 It is a cross-sectional schematic diagram of the locking mechanism of the utility model;

[0024] Figure 4 This is a schematic diagram of the interior of the clamping mechanism of the utility model;

[0025] Figure 5 It is a cross-sectional schematic diagram of the hanger mechanism of the utility model.

[0026] In the figure: 1. steel box girder; 2. hanger mechanism; 3. fixing hole; 4. locking mechanism; 5. clamping mechanism; 6. fixing rod; 201. crane hole; 202. storage slot; 203. rotating frame; 204. rotating slot; 205. rotating rod; 401. connecting hole; 402. fixing frame; 403. locking slot; 404. connecting spring; 405. concave plate; 406. lower locking block; 407. upper locking block; 408. sliding block; 409. sliding slot; 410. fixing cylinder; 501. installation cabin; 502. fixing slot; 503. fixing block; 504. trapezoidal block; 505. pushing plate; 506. reciprocating spring. DETAILED DESCRIPTION

[0027] 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.

[0028] In the process of bridge construction, steel box girders are needed. The positioning device provided by the utility model is specially used for the positioning operation of bridge steel box girders. In the process of using this device for positioning operation, it is necessary to ensure in advance that the position of the piers or supports has been accurately measured and marked, and confirm whether the geometric dimensions of the supports and box girders are consistent with the design requirements. Before placing the box girder on the supports or piers, it is necessary to ensure that the installation surface is clean and any obstacles that may affect the contact between the box girder and the supports are removed. It is ensured that the necessary tools and equipment are available for installing and positioning the box girder. During the installation process, safety regulations must be strictly observed and necessary safety measures must be taken to ensure good communication and coordination between all parties involved so that the installation proceeds smoothly and achieves the expected results.

[0029] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a positioning device for installing a bridge steel box girder, comprising:

[0030] A steel box girder 1, with fixing holes 3 arranged on both sides of the front of the steel box girder 1, and fixing rods 6 fixedly installed on both sides of the rear of the steel box girder 1;

[0031] The hanger mechanism 2 is arranged on the left and right sides of the steel box girder 1 and is used to assist the crane in manipulating the steel box girder 1;

[0032] The locking mechanism 4 and the clamping mechanism 5 are both arranged at the front and rear sides of the steel box beam 1 , and are both used to fix the connection between the steel box beams 1 .

[0033] The hanger mechanism 2 comprises:

[0034] A storage groove 202 is arranged on the left and right sides of the steel box girder 1, and a rotating groove 204 is arranged inside the storage groove 202. A rotating rod 205 is installed inside the rotating groove 204. A rotating frame 203 is installed on the outer wall of the rotating rod 205. A crane hole 201 is arranged at the other end of the rotating frame 203. The rotating frame 203 is located in the storage groove 202.

[0035] like Figure 5 As shown, it should be noted that: by moving the rotating frame 203, the rotating rod 205 can be used to rotate in the storage groove 202. When the rotating frame 203 is in a horizontal state, it is convenient for the crane to move the steel box girder 1. When the steel box girders 1 are connected to each other, the rotating frame 203 can automatically rotate back to the inside of the storage groove 202, making the device look more beautiful.

[0036] The locking mechanism 4 comprises:

[0037] A fixing frame 402 is installed on both sides of the front surface of the steel box girder 1, and is provided with a connecting hole 401. The connecting hole 401 passes through the upper and lower ends of the fixing frame 402. Locking grooves 403 are provided on both sides of the rear surface of the steel box girder 1. A connecting spring 404 is installed at the bottom end of the inner side of the locking groove 403, and a concave plate 405 is installed at the other end of the connecting spring 404. A lower locking block 406 is installed at the top of the concave plate 405.

[0038] A connecting spring 404 is installed at the top inner side of the locking groove 403, a fixing cylinder 410 is installed on the outer wall of the connecting spring 404, a plurality of sliding grooves 409 are arranged inside the fixing cylinder 410, a sliding block 408 is installed inside the sliding groove 409, the sliding block 408 is located on the outer wall of the concave plate 405, and a lower locking block 406 is installed at the bottom end of the concave plate 405.

[0039] The lower locking block 406 fits tightly with the upper locking block 407, and the lower locking block 406 and the upper locking block 407 have rounded corners on their outwardly facing surfaces. When the steel box girder 1 is fixed, the rounded corners on the lower locking block 406 and the upper locking block 407 are located on the inner side of the locking groove 403, and the concave plate 405 at the top of the upper locking block 407 is located on the inner side of the fixing tube 410.

[0040] like Figure 3 As shown, it should be noted that: when fixing the steel box girder 1, the fixing frame 402 on the first steel box girder 1 pushes the lower locking block 406 and the upper locking block 407 inside the locking groove 403, and the top of the fixing frame 402 is set to an arc shape. The arc surface at the top of the fixing frame 402 pushes the fillets on the lower locking block 406 and the upper locking block 407, so that the lower locking block 406 pushes the concave plate 405 downward to move. During the movement of the concave plate 405, the reciprocating spring 506 is compressed, and the upper locking block 407 pushes the concave plate 405 upward to move inside the fixing cylinder 410, and the concave During the movement of plate 405, the sliding block 408 slides in the sliding groove 409, thereby driving the connecting spring 404 to be compressed. When the upper locking block 407 and the lower locking block 406 are in the locking groove 403, they rebound under the action of the connecting spring 404. After the rebound, the upper locking block 407 and the lower locking block 406 are tightly fitted and fixed in the locking groove 403. The other ends of the upper locking block 407 and the lower locking block 406 are straight surfaces. After entering the locking groove 403, the upper locking block 407 and the lower locking block 406 cannot be pulled out of the locking groove 403 by pushing them again.

[0041] The clamping mechanism 5 comprises:

[0042] An installation cabin 501 is arranged on the front side of the steel box girder 1, and fixing grooves 502 are arranged at both ends of the inner side of the installation cabin 501. The fixing grooves 502 are used for installing the trapezoidal block 504. A fixing block 503 is installed on the outer wall at one end of the trapezoidal block 504, and a reciprocating spring 506 is installed on the inner side of the fixing block 503. A push plate 505 is installed at one end of the trapezoidal block 504, and the push plate 505 is located at both ends of the reciprocating spring 506.

[0043] like Figure 4 As shown, it should be noted that: during the movement and connection of the steel box girder 1, the fixed block 503 enters the inner side of the installation cabin 501. During the movement, the slope of the trapezoidal block 504 enters the installation cabin 501, and the trapezoidal block 504 drives the push plate 505 to move. During the movement of the push plate 505, the reciprocating spring 506 is compressed. When the trapezoidal block 504 enters the inner side of the fixed groove 502, the reciprocating spring 506 rebounds and drives the trapezoidal block 504 to limit the position, so that the steel box girder 1 is fixed.

[0044] In summary, the positioning device for installing the steel box girder of the bridge can fix the steel box girder 1 through the coordination between the hanger mechanism 2, the clamping mechanism 5, and the locking mechanism 4, so as to stabilize the bridge during construction and improve the utilization rate and practicality of the device.

[0045] Although the 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A positioning device for installing a bridge steel box girder, characterized in that: include: A steel box girder (1), wherein fixing holes (3) are arranged on both sides of the front of the steel box girder (1), and fixing rods (6) are fixedly installed on both sides of the rear of the steel box girder (1); A hanger mechanism (2) is arranged on the left and right sides of the steel box girder (1) and is used to assist the crane in manipulating the steel box girder (1); The locking mechanism (4) and the clamping mechanism (5) are both arranged on the front and rear sides of the steel box beam (1), and are both used to perform fixed connection between the steel box beams (1).

2. A positioning device for installing a bridge steel box girder according to claim 1, characterized in that: The hanger mechanism (2) comprises: A storage groove (202) is arranged on the left and right sides of the steel box girder (1), a rotating groove (204) is arranged inside the storage groove (202), a rotating rod (205) is installed inside the rotating groove (204), a rotating frame (203) is installed on the outer wall of the rotating rod (205), a crane hole (201) is arranged at the other end of the rotating frame (203), and the rotating frame (203) is located in the storage groove (202).

3. A positioning device for installing a bridge steel box girder according to claim 1, characterized in that: The locking mechanism (4) comprises: A fixing frame (402) is installed on both sides of the front of the steel box girder (1), and the fixing frame (402) is provided with a connection hole (401), and the connection hole (401) passes through the upper and lower ends of the fixing frame (402). Locking grooves (403) are provided on both sides of the rear of the steel box girder (1), and a connecting spring (404) is installed at the bottom end of the inner side of the locking groove (403), and a concave plate (405) is installed at the other end of the connecting spring (404), and a lower locking block (406) is installed at the top of the concave plate (405).

4. A positioning device for installing a bridge steel box girder according to claim 3, characterized in that: A connecting spring (404) is installed at the top inner side of the locking groove (403), a fixing cylinder (410) is installed at the outer wall of the connecting spring (404), a plurality of sliding grooves (409) are arranged inside the fixing cylinder (410), a sliding block (408) is installed inside the sliding groove (409), the sliding block (408) is located on the outer wall of the concave plate (405), and a lower locking block (406) is installed at the bottom end of the concave plate (405).

5. A positioning device for installing a bridge steel box girder according to claim 3, characterized in that: The lower locking block (406) is tightly fitted with the upper locking block (407), and the lower locking block (406) and the upper locking block (407) are provided with rounded corners on the sides facing outward. When the steel box girder (1) is fixed, the rounded corners provided on the lower locking block (406) and the upper locking block (407) are located on the inner side of the locking groove (403), and the concave plate (405) at the top end of the upper locking block (407) is located on the inner side of the fixing tube (410).

6. A positioning device for installing a bridge steel box girder according to claim 1, characterized in that: The clamping mechanism (5) comprises: An installation cabin (501) is arranged on the front side of the steel box girder (1), and fixing grooves (502) are arranged at both ends of the inner side of the installation cabin (501), and the fixing grooves (502) are used to install the trapezoidal block (504). A fixing block (503) is installed on the outer wall of one end of the trapezoidal block (504), and a reciprocating spring (506) is installed on the inner side of the fixing block (503). A pushing plate (505) is installed at one end of the trapezoidal block (504), and the pushing plate (505) is located at both ends of the reciprocating spring (506).

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