A target auxiliary positioning device for bridge construction

Abstract

The utility model relates to bridge engineering construction technical field especially, and it is a target auxiliary positioning device for bridge construction, the utility model provides a target auxiliary positioning device for bridge construction can assist in positioning and installation to target, avoids the position deviation of target, improves the efficiency and quality of bridge construction target auxiliary positioning device for bridge. A target auxiliary positioning device for bridge construction, including have pushcar, screw rod and motor etc., the upper side of pushcar middle part rotatable connection has screw rod, and the lower side of pushcar is connected with motor. The utility model through the adsorption of target that has been coated with structural glue through sucking disc and air suction pump, start motor again, adjust target to measuring point position accurately, then can press target through first telescopic cylinder, can complete target installation after structural glue solidification, reaches can assist in positioning and installation to target, avoids the position deviation of target, improves the efficiency and quality of bridge effect.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering construction technology, and in particular to a target-assisted positioning device for bridge construction. Background Technology

[0002] In the field of modern bridge construction, the incremental launching construction of steel-concrete box girder bridges is becoming increasingly widely used due to its unique advantages. During the incremental launching construction of steel-concrete box girder bridges, maintaining the bridge alignment in accordance with design requirements is of paramount importance. The precise control of the bridge alignment is directly related to the stability of the bridge after completion. If the alignment deviates, the stress distribution on various parts of the bridge will be uneven, which may lead to local stress concentration. Target-assisted positioning is a widely used correction measure.

[0003] The existing bridge construction target installation process requires construction personnel to determine the measuring points, apply structural adhesive to the designated locations on the steel box girder, and then stick the measuring point target onto the measuring points on the steel box girder. After a period of time to ensure that the structural adhesive has solidified, the target is then manually removed. Because the manual placement and pressing process may cause positional deviations in the target, subsequent positioning and correction errors will occur, affecting the construction quality of the bridge.

[0004] Therefore, a target-assisted positioning device for bridge construction has been developed to assist in the positioning and installation of targets, avoid target positional deviations, and improve the efficiency and quality of bridge construction. Utility Model Content

[0005] To overcome the shortcomings of existing bridge construction target installation processes, which may lead to target position deviations, causing errors in subsequent positioning and correction, and affecting the quality of bridge construction, the technical problem of this utility model is to provide a bridge construction target auxiliary positioning device that can assist in the positioning and installation of targets, avoid target position deviations, and improve the efficiency and quality of bridge construction.

[0006] The technical implementation scheme of this utility model is as follows: A target auxiliary positioning device for bridge construction includes a trolley, a lead screw, a motor, a slider, a connecting frame, a first telescopic cylinder, a suction cup, an air pump, a second telescopic cylinder, a limiting block, and a target. The lead screw is rotatably connected to the upper side of the middle of the trolley, and the motor is connected to the lower side of the trolley. The output shaft of the motor is connected to the lead screw. The slider is threadedly connected to the lead screw, and the slider is slidably connected to the trolley. The connecting frame is connected to the left side of the slider, and the first telescopic cylinder is connected to the connecting frame. The suction cup is connected to the telescopic end of the first telescopic cylinder, and the air pump is connected to the upper side of the connecting frame. The second telescopic cylinder is connected to the front of the connecting frame, and two limiting blocks are connected to the telescopic end of the second telescopic cylinder. The target is engaged with the limiting blocks.

[0007] Furthermore, the limiting block is equipped with a locking slot.

[0008] Furthermore, the cart is equipped with handrails.

[0009] Furthermore, the cart is equipped with four omnidirectional wheels.

[0010] Furthermore, it also includes a sealing ring, which is connected to the suction cup.

[0011] Furthermore, it also includes fans, with fans installed on both the front and rear sides of the connecting frame.

[0012] This invention has the following advantages: By using a suction cup and an air pump to adsorb a target coated with structural adhesive, and then starting a motor to precisely adjust the target to the measuring point position, the first telescopic cylinder can press the target. Once the structural adhesive has cured, the target installation is complete. This invention assists in the positioning and installation of the target, avoids target positional deviations, and improves the efficiency and quality of bridge crossings. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the suction cup and sealing ring components of this utility model.

[0015] Figure 3 This is a schematic diagram of the first planar structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the second structure of this utility model.

[0017] In the above attached diagram: 1: trolley, 2: lead screw, 21: motor, 3: slider, 4: connecting frame, 5: first telescopic cylinder, 6: suction cup, 7: sealing ring, 8: air pump, 9: fan, 10: second telescopic cylinder, 11: limit block, 12: target. Detailed Implementation

[0018] 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.

[0019] A target-assisted positioning device for bridge construction, such as Figures 1-4As shown, the device includes a trolley 1, a lead screw 2, a motor 21, a slider 3, a connecting frame 4, a first telescopic cylinder 5, a suction cup 6, a sealing ring 7, an air pump 8, a fan 9, a second telescopic cylinder 10, a limit block 11, and a target 12. The lead screw 2 is rotatably connected to the upper middle part of the trolley 1. The trolley 1 is equipped with a handle for easy holding and four casters for easy pushing. The motor 21 is connected to the lower part of the trolley 1, and the output shaft of the motor 21 is connected to the lead screw 2. A slider 3 is threadedly connected to the lead screw 2, and the slider 3 slides against the trolley 1. The connection is dynamic. The left side of the slider 3 is connected to the connecting frame 4. The connecting frame 4 is connected to the first telescopic cylinder 5. The telescopic end of the first telescopic cylinder 5 is connected to the suction cup 6. The suction cup 6 is connected to the sealing ring 7. The upper side of the connecting frame 4 is connected to the suction pump 8. The front part of the connecting frame 4 is connected to the second telescopic cylinder 10. The telescopic end of the second telescopic cylinder 10 is connected to the front and rear limit blocks 11. The limit blocks 11 are fitted with the target 12. The limit blocks 11 are provided with a positioning groove to facilitate the placement of the target 12. Fans 9 are provided on both the front and rear sides of the connecting frame 4.

[0020] When using this utility model, firstly, the target 12 to be fixed is clamped onto the limiting block 11, and the first telescopic cylinder 5 on the connecting frame 4 is activated, causing the telescopic end of the first telescopic cylinder 5 to extend, so that the suction cup 6 contacts the target through the sealing ring 7. Then, the suction pump 8 is activated to make the target adhere to the suction cup 6. Through the sealing effect of the sealing ring 7, the suction cup 6 can firmly adhere to the target 12. After that, structural adhesive is applied to the fixing surface of the target 12, and then the trolley 1 is pushed so that the target 12 is close to the measuring point to be fixed. Then, by starting the motor 21, the lead screw 2 is rotated, and under the action of the thread, the slider 3 can slide up and down on the connecting frame 4, so that the position of the connecting frame 4 and the target 12 can be finely adjusted, so that the target 12 is precisely fixed. After the target is moved to the measuring point, the second telescopic cylinder 10 is activated, causing its telescopic end to retract and the limiting block 11 to disengage from the target 12. Then, the first telescopic cylinder 5 continues to extend, pressing the target 12 onto the measuring point. The target 12 is then fixed with structural adhesive. During the curing process of the structural adhesive, the operator only needs to hold the trolley 1 steady with the handrail. The fan 9 can be activated to blow air through the clamping block, preventing the target 12 from shifting due to hand tremors or other unexpected factors during the curing process. After the structural adhesive has cured, the trolley 1 interface is removed. This process assists in positioning and installing the target 12, preventing positional deviations and improving the efficiency and quality of bridge crossing.

[0021] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A target-assisted positioning device for bridge construction, characterized in that: The components include a trolley (1), a lead screw (2), a motor (21), a slider (3), a connecting frame (4), a first telescopic cylinder (5), a suction cup (6), an air pump (8), a second telescopic cylinder (10), a limit block (11), and a target (12). The lead screw (2) is rotatably connected to the upper middle part of the trolley (1), and the motor (21) is connected to the lower part of the trolley (1). The output shaft of the motor (21) is connected to the lead screw (2), and the slider (3) is threaded onto the lead screw (2). (3) It is slidably connected to the trolley (1). A connecting frame (4) is connected to the left side of the slider (3). A first telescopic cylinder (5) is connected to the connecting frame (4). A suction cup (6) is connected to the telescopic end of the first telescopic cylinder (5). An air pump (8) is connected to the upper side of the connecting frame (4). A second telescopic cylinder (10) is connected to the front of the connecting frame (4). Two limit blocks (11) are connected to the telescopic end of the second telescopic cylinder (10). A target (12) is snapped onto the limit block (11).

2. The target-assisted positioning device for bridge construction according to claim 1, characterized in that: The limiting block (11) is provided with a locking groove.

3. The target-assisted positioning device for bridge construction according to claim 1, characterized in that: The cart (1) is equipped with handrails.

4. A target-assisted positioning device for bridge construction according to claim 1, characterized in that: The trolley (1) is equipped with four casters.

5. A target-assisted positioning device for bridge construction according to claim 1, characterized in that: It also includes a sealing ring (7), which is connected to the suction cup (6).

6. A target-assisted positioning device for bridge construction according to claim 1, characterized in that: It also includes a fan (9), with fans (9) on both the front and rear sides of the connecting frame (4).

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