Large-span heavy steel box girder integral hoisting displacement detection device

Abstract

The utility model discloses an integral hoisting displacement detection device for a large-span heavy steel box girder, which comprises two attaching plates which are respectively used for being fixed on the side surface of the steel box girder and the side surface of an end beam, a fixed clamping plate is fixedly and horizontally arranged on the side surface of the bottom end of each attaching plate, and after the steel box girder is hoisted to the end beam, the fixed clamping plate is fixed on the end beam. The two attaching plates are clamped on a steel box girder and an end beam through the fixed clamping plate and the movable clamping plate respectively, then the sliding seat is adjusted to the same height, the signal transmitter and the signal receiver on the sliding seat are turned on, the signal receiver receives corresponding signals transmitted by the signal transmitter and transmits the corresponding signals to a processor arranged in the sliding seat, and the processor is used for processing the corresponding signals. The displacement and the direction of the steel box girder are analyzed and judged through the processor, corresponding signals are sent to a controller of external adjusting equipment through the wireless transmission module arranged in the sliding seat, the process of automatically detecting the displacement and adjusting the steel box girder is achieved, the working efficiency is greatly improved, and compared with manual detection, the detection precision is higher, adjusting is faster, and the labor intensity is lowered. And repeated adjustment is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a displacement detection device for integral hoisting of a long-span heavy steel box girder. Background Technique

[0002] In the construction of long-span bridges, it is necessary to hoist the steel box girder in place and weld it to the end beam. When hoisting the steel box girder, it will not be completely aligned with the end beam, and its position needs to be finely adjusted to align the steel box girder with the end beam. During the alignment process, the integral hoisting displacement of the steel box girder needs to be detected. The existing detection methods usually involve on-site measurement by workers using a level, a measuring ruler, etc. The measurement accuracy is low, multiple adjustments are required, and the work efficiency is low. For this reason, we propose a displacement detection device for integral hoisting of a long-span heavy steel box girder. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects, provide a displacement detection device for integral hoisting of a long-span heavy steel box girder, realize automatic displacement detection and adjustment of the steel box girder, greatly improve the work efficiency, and have higher detection accuracy and faster adjustment compared with manual detection, without multiple adjustments, and can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A displacement detection device for integral hoisting of a long-span heavy steel box girder, including two fitting plates respectively used for being fixed on the side surface of the steel box girder and the side surface of the end beam. The bottom side surface of the fitting plate is fixedly and horizontally provided with a fixed clamping plate. A T-shaped sliding groove is opened on the side surface of the fitting plate. An active clamping plate and a sliding seat are respectively slidably arranged in the sliding groove. The active clamping plate is sleeved outside the fitting plate as a whole and slidably arranged on the fitting plate. The sliding seat wraps around three side surfaces of the fitting plate and is slidably arranged on the fitting plate. A signal transmitter is installed on the side surface of one of the sliding seats, and a signal receiver corresponding to the signal transmitter is installed on the side surface of the other sliding seat.

[0005] As a preferred technical scheme of the utility model, screw holes are opened on the side surface of the sliding seat and the side surface of the active clamping plate, and fixing bolts are threadedly connected in the screw holes.

[0006] As a preferred technical scheme of the utility model, scale lines Ⅰ are uniformly arranged on the side surface of the fitting plate far from the fixed clamping plate.

[0007] As a preferred technical scheme of the utility model, a plurality of installation grooves are uniformly opened on the side surface of the fitting plate close to the fixed clamping plate, and electromagnetic suction cups are installed in the installation grooves.

[0008] As a preferred technical solution of the present utility model, the sliding groove is open at the top of the fitting plate, and the movable clamping plate and the sliding seat can slide out from the top of the sliding groove and disengage from the fitting plate.

[0009] As a preferred technical solution of the present utility model, scale lines II are uniformly arranged on the side surface of the fitting plate on the same side as the electromagnetic chuck.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: After the steel box girder is hoisted to the end beam, the two fitting plates are respectively clamped on the steel box girder and the end beam through the fixed clamping plate and the movable clamping plate, and then the sliding seats are adjusted to the same height. The signal transmitter and the signal receiver on the sliding seat are turned on. The signal receiver receives the corresponding signal transmitted by the signal transmitter and transmits the corresponding signal to the processor arranged in the sliding seat. The processor analyzes and judges the displacement amount and direction of the steel box girder, and sends the corresponding signal to the controller of the external adjustment device through the wireless transmission module built in the sliding seat, realizing the process of automatically detecting the displacement and adjusting the steel box girder, greatly improving the work efficiency, and having higher detection accuracy and faster adjustment compared with manual detection, without multiple adjustments. Description of the Drawings

[0011] Figure 1 is a structural schematic diagram of the present utility model;

[0012] Figure 2 is a side view structural schematic diagram of the present utility model;

[0013] Figure 3 is a structural schematic diagram of the signal receiver of the present utility model;

[0014] Figure 4 is a schematic diagram of the use state of the present utility model.

[0015] In the figure: 1 fitting plate, 2 fixed clamping plate, 3 sliding groove, 4 movable clamping plate, 5 sliding seat, 6 signal transmitter, 7 signal receiver, 8 fixed bolt, 9 scale line I, 10 electromagnetic chuck, 11 scale line II, 12 steel box girder, 13 end beam. Detailed Embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-4, the present utility model provides a technical solution: a displacement detection device for integral hoisting of a long-span heavy steel box girder, including two fitting plates 1 respectively used for being fixed on the side surface of the steel box girder 12 and the side surface of the end beam 13. A fixed clamping plate 2 is horizontally and fixedly arranged on the bottom side surface of the fitting plate 1. The fixed clamping plate 2 and the fitting plate 1 form an L-shaped main body. T-shaped sliding grooves 3 are symmetrically opened on both side surfaces of the fitting plate 1. An active clamping plate 4 and a sliding seat 5 are respectively slidably arranged in the sliding grooves 3. Specifically, the whole active clamping plate 4 is sleeved outside the fitting plate 1 and slidably arranged on the fitting plate 1. The sliding seat 5 wraps around three side surfaces of the fitting plate 1 and is slidably arranged on the fitting plate 1, so that the sliding seat 5 can be installed on either side of the two sides of the fitting plate 1.

[0018] A signal transmitter 6 is installed on the side surface of one of the sliding seats 5, and a signal receiver 7 corresponding to the signal transmitter 6 is installed on the side surface of the other sliding seat 5. After the steel box girder 12 is hoisted to the end beam 13, the two fitting plates 1 are respectively clamped on the steel box girder 12 and the end beam 13 through the fixed clamping plate 2 and the active clamping plate 4. Then, the sliding seats 5 are adjusted to the same height. The signal transmitter 6 and the signal receiver 7 on the sliding seats 5 are turned on. The signal receiver 7 receives the corresponding signal emitted by the signal transmitter 6 and transmits the corresponding signal to the processor arranged in the sliding seat 5. The processor analyzes and judges the displacement amount and direction of the steel box girder 12, and sends the corresponding signal to the controller of the external adjustment device through the wireless transmission module built in the sliding seat 5, realizing the process of automatically detecting the displacement and adjusting the steel box girder, greatly improving the work efficiency, and having higher detection accuracy and faster adjustment compared with manual detection, without the need for multiple adjustments.

[0019] Specifically, a rechargeable built-in battery is installed in the sliding seat 5, preferably a commonly used lithium battery, and a corresponding charging interface is arranged on the sliding seat 5, preferably a Type-C charging port; the processor and the wireless transmission module are both arranged inside the sliding seat 5. Among them, the controller is preferably a single-chip microcomputer such as a single-chip microcomputer of the 80C51 series, and the wireless transmission module is preferably a commonly used Wi-Fi module or a 5G communication module, and a Bluetooth module can also be selected; the signal transmitter 6 is preferably a commonly used infrared signal transmitter, and the signal receiver 7 is preferably a corresponding infrared signal receiver. An installation plate is arranged on the sliding seat 5 where the signal receiver 7 is installed. A plurality of grooves are evenly opened on the installation plate, and an infrared signal receiver is installed in each groove, so that the signal emitted by the infrared signal transmitter can only be received by one infrared signal receiver at the same time, so that the processor can judge the deviation of the positions of the steel box girder 12 and the end beam 13, and further enable the controller of the external adjustment device to accurately control the displacement adjustment of the steel box girder 12. After the adjustment is completed, it is judged again through the processor whether the signal emitted by the signal transmitter 6 is received by the infrared signal receiver located at the central point, so as to judge whether the adjustment is in place and whether fine adjustment is needed again.

[0020] In a preferred technical solution, screw holes are formed in the side surfaces of the sliding seat 5 and the movable clamping plate 4. A fixing bolt 8 is threadedly connected in the screw hole. The positions of the sliding seat 5 and the movable clamping plate 4 can be fixed by the fixing bolt 8, which is convenient to fix and simple to operate.

[0021] In a further preferred technical solution, scale lines Ⅰ9 are uniformly arranged on the side surface of the fitting plate 1 away from the fixed clamping plate 2. When adjusting the position of the sliding seat 5, it is possible to determine that the two sliding seats 5 are at the same height according to the scale lines Ⅰ9, thereby further improving the accuracy of displacement detection.

[0022] The present utility model also provides another preferred technical solution, which is applicable to the position where there is no suitable fixed clamping plate 2 to be clamped near the steel box girder 12 and the end beam 13: A plurality of installation grooves are uniformly formed on the side surface of the fitting plate 1 away from the fixed clamping plate 2. An electromagnetic chuck 10 is installed in the installation groove. The electromagnetic chuck 10 adopts a common small electromagnetic chuck. A rechargeable built-in battery, preferably a common lithium battery, is arranged inside the fitting plate 1 to supply power to the electromagnetic chuck 10, and a corresponding charging interface, preferably a Type-C charging port, is arranged on the fitting plate 1; The fitting plate 1 can be magnetically adsorbed on the side surfaces of the steel box girder 12 and the end beam 13 through the electromagnetic chuck 10, and is fixed on the steel box girder 12 and the end beam 13 in cooperation with the movable clamping plate 4.

[0023] The signal transmitter 6, signal receiver 7, electromagnetic chuck 10, processor, wireless transmission module, built-in battery, etc. used in this application are all common electronic components in the prior art. Their specific structures, working principles, circuit connections, etc. are all well-known technologies and will not be elaborated here.

[0024] Control switches corresponding to the processor, signal transmitter 6, signal receiver 7, and wireless transmission module are arranged on the sliding seat 5, and a control switch corresponding to the electromagnetic chuck 10 is arranged on the fitting plate 1.

[0025] The chute 3 is open at the top of the fitting plate 1. The movable clamping plate 4 and the sliding seat 5 can slide out from the top of the chute 3 to be separated from the fitting plate 1. When it is necessary to adsorb the side of the electromagnetic chuck 10 on the steel box girder 12 and the end beam 13, first separate the movable clamping plate 4 from the fitting plate 1, then take out the sliding seat 5, then turn the sliding seat 5 around and slide it into the chute 3 again, so that the side provided with the signal transmitter 6 and the signal receiver 7 is on the same side as the fixed clamping plate 2, and then slide the movable clamping plate 4 into the chute 3.

[0026] Further preferably, on the side surface of the fitting plate 1 on the same side as the electromagnetic chuck 10, scale lines II 11 are uniformly arranged. Similar to the function of the scale lines I 9, when the fitting plate 1 is fixed by the electromagnetic chuck 10, when adjusting the position of the sliding seat 5, it can be determined that the two sliding seats 5 are at the same height according to the scale lines II 11, thereby further improving the accuracy of displacement detection.

[0027] The un-disclosed parts in the present utility model are all prior arts, and their specific structures, materials and working principles will not be elaborated herein. Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A large-span heavy-duty steel box girder integral hoisting displacement detection device, comprising two bonding plates (1) respectively used to be fixed on the side of the steel box girder (12) and the side of the end beam (13), characterized in that: A fixed card plate (2) is fixedly and horizontally arranged on the side surface of the bottom end of the plywood (1); a T-shaped slide groove (3) is provided on the side surface of the plywood (1); a movable card plate (4) and a sliding seat (5) are slidably arranged in the slide groove (3); the movable card plate (4) is entirely sleeved on the outside of the plywood (1) and is slidably arranged on the plywood (1); the sliding seat (5) is wrapped around three side surfaces of the plywood (1) and is slidably arranged on the plywood (1); a signal transmitter (6) is installed on the side surface of one of the sliding seats (5); and a signal receiver (7) corresponding to the signal transmitter (6) is installed on the side surface of the other sliding seat (5).

2. The large-span heavy-duty steel box girder integral hoisting displacement detection device according to claim 1 is characterized in that: The side surface of the sliding seat (5) and the side surface of the movable clamping plate (4) are both provided with screw holes, and the inner threads of the screw holes are connected with fixing bolts (8).

3. The large-span heavy-duty steel box girder integral hoisting displacement detection device according to claim 1 is characterized in that: Scale lines I (9) are evenly arranged on the surface of the bonding plate (1) on one side away from the fixed clamping plate (2).

4. The large-span heavy-duty steel box girder integral hoisting displacement detection device according to claim 1 is characterized in that: A plurality of installation grooves are evenly formed on a surface of the bonding plate (1) on one side away from the fixed clamping plate (2), and an electromagnetic suction cup (10) is installed in the installation groove.

5. The device for detecting displacement of large-span heavy-duty steel box beams during overall hoisting according to claim 4 is characterized in that: The slide groove (3) is openly arranged at the top end of the bonding plate (1), and the movable clamping plate (4) and the sliding seat (5) can slide out from the top end of the slide groove (3) and be separated from the bonding plate (1).

6. A large-span heavy-duty steel box girder integral hoisting displacement detection device according to claim 4 or 5, characterized in that: The side surface of the bonding plate (1) on the same side as the electromagnetic suction cup (10) is evenly provided with scale lines II (11).

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