A three-way adjusting device for in-situ positioning of an inner-inclined steel box arch rib and a construction method

Abstract

The application relates to the field of bridge construction, and discloses an inner-inclined steel box arch rib in-place three-way adjusting and in-place device and a construction method, which comprises a hollow seat, a three-way adjusting and in-place assembly and a storage protection assembly, wherein the three-way adjusting and in-place assembly and the storage protection assembly are arranged on the hollow seat; the three-way adjusting and in-place assembly comprises an electric telescopic rod, a push plate, a vertical plate, a U-shaped frame, a rotating shaft, a branch frame and a prism; the electric telescopic rod is fixedly installed on the inner wall of the bottom of the hollow seat; the telescopic end of the electric telescopic rod is fixedly connected with the push plate; and the top of the push plate is fixedly connected with the vertical plate. The three-way position of the prism can be conveniently adjusted and positioned, the position of the prism does not need to be adjusted as a whole by manpower, the adjustment is relatively convenient, and the prism can be conveniently stored and protected after use.

Description

Technical Field

[0001] This application relates to the field of bridge construction, and in particular to a three-way adjustable positioning device and construction method for inward-tilting steel box arch ribs. Background Technology

[0002] In bridge structural engineering, many major, difficult, and dangerous steel bridges require extremely high precision in closure, with stringent error tolerances during construction. The inward-sloping steel box girder arch is a novel bridge structural form, characterized by its inward-sloping ribs forming a butterfly-shaped arch with a beautiful shape and artistic appeal. However, this technology also presents some challenges in its application. For example, due to the significant weight of the steel box girder arch itself, a floating crane is needed to lift it into position, measure, adjust, and weld it until the circumferential weld is complete before the crane can release its hook to install the next segment. Currently, for ease of measurement, small prisms are primarily used for steel box girder arch installation. However, ordinary scaffolding and prism combinations often cannot be fixed on inward-sloping steel box girder arches. Therefore, current measurement work during the installation process often relies on manual prism support, which can lead to instability and increase measurement errors, affecting the closure of the steel box girder arch. The inward-sloping steel box girder arch places high demands on many aspects, including the installation environment, process control, ease of measurement, and measurement accuracy.

[0003] Currently, there are some related technological explorations in the industry, such as requirements for installation and construction environment and process control. CN202010492631.5 discloses a construction method for the segmented assembly and overall lifting of large-span steel box arch ribs. This method involves erecting a side arch section support system, a middle arch section support system, and a portal frame overall lifting support system. A passageway is reserved between the support supports of the middle arch section support system. The portal frame overall lifting support system is located at both ends of the designed position of the middle arch section arch rib. The side arch section arch ribs are installed at the designed bridge position. The middle arch section arch ribs are assembled into a whole below the designed bridge position and on the middle arch section support system. The middle arch section arch ribs are then hoisted and installed. This method reduces the difficulty of welding quality control and ensures the positioning accuracy of the arch rib segments while ensuring normal passage of the waterway. Regarding ease of measurement and measurement accuracy, CN208269909U discloses a measuring bracket for an inward-inclined steel box arch rib. The bracket has a base at its bottom with an internal cavity containing a magnet. The bracket is connected to a centering rod via a connector, and the top of the centering rod supports a prism. The bracket and centering rod form a stable triangular support structure, allowing for stable fixation on the inward-inclined steel box arch rib. This provides precise positional values ​​for the installation of the inward-inclined steel box arch rib, reducing measurement errors.

[0004] Our company has also explored the field of inward-inclined steel box arch ribs, attempting to design a convenient and easy-to-operate three-way adjustable positioning device and construction method for inward-inclined steel box arch ribs to meet the needs of modern engineering construction. Summary of the Invention

[0005] To facilitate convenient and easy manual operation, this application provides a three-way adjustable positioning device and construction method for inward-tilting steel box arch ribs.

[0006] The technical solution provided in this application for a three-way adjustable positioning device and construction method for an inwardly inclined steel box arch rib is as follows:

[0007] A three-way adjustable positioning device for inward tilting steel box arch ribs includes a hollow base, a three-way adjustable positioning component, and a storage and protection component, wherein the three-way adjustable positioning component and the storage and protection component are both disposed on the hollow base.

[0008] The three-way adjustable positioning assembly includes an electric telescopic rod, a push plate, a vertical plate, a U-shaped frame, a rotating shaft, a sub-support, and a prism. The electric telescopic rod is fixedly installed on the bottom inner wall of the hollow seat. The telescopic end of the electric telescopic rod is fixedly connected to the push plate. The top of the push plate is fixedly connected to the vertical plate. The U-shaped frame is fixedly installed on the vertical plate. The rotating shaft is rotatably installed on the U-shaped frame. The sub-support is fixedly installed on the rotating shaft. The prism is fixedly installed on the sub-support.

[0009] The storage and protection assembly includes a rectangular sealing plate and an auxiliary plate. Rectangular holes are provided on both sides of the hollow base. The rectangular sealing plate is slidably installed in the rectangular holes. The top of the auxiliary plate is fixedly connected to the rectangular sealing plate. The two rectangular sealing plates are in contact on their closest sides.

[0010] By adopting the above technical solution, the three-dimensional position of the prism can be easily adjusted and positioned without the need for manual overall adjustment, making adjustment more convenient. Furthermore, the prism can be easily stored and protected after use. The three-dimensional adjustment and positioning component enables precise positioning and rapid installation of the steel box arch ribs, improving ease of use; the storage and protection component protects sensitive components such as the prism from damage during transportation and construction; the entire device has a compact structure, is easy to operate, and reduces construction difficulty and risk.

[0011] Optionally, the three-way adjustment and positioning assembly further includes a base one, a base two, a moving block, a limiting block, a power motor, a power shaft, and an electromagnet. The top of the base one is fixedly connected to the hollow seat. A moving hole is provided on one side of the base one. The moving block is slidably installed in the moving hole. The limiting block is fixedly installed at the bottom of the moving block. The power motor is fixedly installed on one side of the base one. The output end of the power motor is fixedly connected to the power shaft. A power thread is provided on the outer side of the power shaft. A power screw hole is provided on one side of the limiting block. The power thread is threadedly connected to the power screw hole. Placement slots are provided at the bottom of both the base one and the base two. The electromagnet is fixedly installed in the placement slot.

[0012] By adopting the above technical solution, the vertical position of the prism can be easily adjusted and positioned, enabling vertical adjustment of the steel box arch rib. The prism can also be rotated and adjusted to position, further improving the positioning accuracy. The use of electromagnets can provide stable attraction force, ensuring the stability of the steel box arch rib during installation. The entire device has a compact structure, is easy to operate, and reduces the difficulty and risk of use.

[0013] Optionally, the storage and protection assembly further includes a magnet one, a magnet two, an adjusting shaft, a square plate, a gear, and a toothed plate. One side of the auxiliary plate has a mounting groove one, in which the magnet one is fixedly installed. Mounting groove two is provided on both inner walls of the hollow base, in which the magnet two is fixedly installed. The adjusting shaft is rotatably mounted on the inner wall of the hollow base, and an adjusting thread is provided on its outer side. One side of the auxiliary plate has an adjusting screw hole, and the adjusting thread is threadedly connected to the adjusting screw hole. The square plate is fixedly installed on the top of the push plate. The gear is fixedly installed on the outer side of the adjusting shaft. The toothed plate is fixedly installed on the front side of the square plate, and the gear meshes with the toothed plate.

[0014] By adopting the above technical solution, the automatic unfolding and retraction of the storage and protection components can be achieved, facilitating the storage and protection of the prism after use. This improves the automation level of the device, and the use of magnets one and two provides stable adsorption force, ensuring the stability of the storage and protection components during unfolding and retraction.

[0015] Optionally, the storage and protection component is equipped with a warning component, which includes a transparent light frame, colored LED beads, a bracket, and a control switch. The transparent light frame is fixedly installed on the hollow base, the colored LED beads are fixedly installed inside the transparent light frame, the bracket is fixedly installed on the inner wall of the hollow base, and the control switch is fixedly installed on the bracket. The control switch is electrically connected to the colored LED beads through a wire.

[0016] By adopting the above technical solution and setting up warning components to improve visibility, the device can be more conspicuous at night or in low-light environments, thus improving the warning effect on staff. During the activation of the prism, staff can be warned.

[0017] Optionally, the warning assembly further includes a touch connector, an outer frame, a T-shaped component, and a spring. The touch connector is electrically connected to the control switch, one side of the outer frame is fixedly connected to the control switch, the T-shaped component is slidably mounted on the outer frame, and the spring is fixedly mounted between the control switch and the outer frame.

[0018] By adopting the above technical solution, the control switch is turned on when the T-shaped part comes into contact with the contact connector.

[0019] Optionally, a second steel ball is fixedly connected to one side of the T-shaped component, a rotating plate is fixedly connected to one end of the adjusting shaft, a first steel ball is fixedly connected to one side of the rotating plate, and the first steel ball abuts against the second steel ball.

[0020] By adopting the above technical solution, the rotation of the adjusting shaft causes steel ball one to repeatedly squeeze steel ball two, thereby causing the colored LED beads to repeatedly light up and turn off, thus serving as a warning to the staff.

[0021] Optionally, a damping pad is fixedly connected inside the U-shaped frame, and the rotating shaft abuts against the inner side of the damping pad.

[0022] By adopting the above technical solution, the damping pad can apply a certain frictional force to the rotating shaft, ensuring the stability of the rotating shaft.

[0023] Optionally, one side of the second base is in contact with the first base, and the top of the second base is in contact with the hollow seat.

[0024] By adopting the above technical solution, the position of base two is defined.

[0025] Optionally, the push plate is slidably installed inside the hollow seat.

[0026] By adopting the above technical solution, the push plate can be moved stably in the vertical direction.

[0027] Optionally, a limiting groove is formed on the inner wall at the bottom of the movable hole, and the limiting block is slidably installed in the limiting groove.

[0028] By adopting the above technical solution, the limiting block can move stably in the lateral direction.

[0029] This application also proposes a construction method for a three-way adjustable positioning device for an inwardly inclined steel box arch rib, including the following steps:

[0030] S1: Place base one and base two inside the inward-tilting steel box, and the electromagnets on base one and base two are attracted to the inward-tilting steel box.

[0031] S2: Start the electric telescopic rod, the prism moves upward, the square plate drives the toothed plate to move, the toothed plate drives the gear to rotate, the gear drives the adjusting shaft to rotate, the auxiliary plate moves horizontally, and the auxiliary plate drives the rectangular sealing plate to move until magnet one and magnet two are attracted to each other.

[0032] S3: After the prism is removed from the hollow base, disconnect the power supply to the electromagnet on the second base, start the power motor, the power motor drives the power shaft to rotate, the limit block drives the moving block to move, turn on the power supply to the electromagnet on the second base, turn off the power supply to the electromagnet on the first base, start the power motor, and the first base and the hollow base move to the right synchronously.

[0033] S4: When the adjusting shaft rotates, it will drive the rotating plate to rotate. Steel ball one will squeeze steel ball two, steel ball two will drive the T-shaped part to move, the T-shaped part will squeeze the spring body, the T-shaped part will squeeze the contact joint, the control switch will be turned on, and the colored LED beads will be turned on.

[0034] This application includes at least one of the following beneficial technical effects:

[0035] 1. This application, through its three-way adjustment and positioning component, allows for the vertical adjustment and positioning of the prism simply by activating the electric telescopic rod. Furthermore, the rotating shaft allows for the rotational adjustment and positioning of the prism.

[0036] 2. This application uses a three-way adjustment and positioning component, where electromagnets on base one and base two are switched and, with the cooperation of a power motor, base one and base two can move laterally inside the inclined steel box. This allows for the adjustment and positioning of the prism's lateral position, facilitating the three-way adjustment and positioning of the prism without the need for manual overall adjustment, making the adjustment more convenient.

[0037] 3. The storage and protection components in this application allow the electric telescopic rod to be activated after the prism is used, so that the prism can be moved into the hollow base. During the downward movement of the prism, the auxiliary plate can drive the rectangular sealing plate to move through the cooperation of gears, toothed plates and adjusting shafts, so that the rectangular sealing plate can block the top opening of the hollow base, thus facilitating the storage and protection of the prism.

[0038] 4. Through the warning component set in this application, the colored LED beads can be repeatedly lit and turned off during the activation and storage of the prism, thus alerting the staff. Attached Figure Description

[0039] Figure 1This is a schematic diagram of a three-way adjustable positioning device for an inwardly tilting steel box arch rib.

[0040] Figure 2 This is a cross-sectional structural schematic diagram of an inwardly tilting steel box arch rib positioning three-way adjustable positioning device.

[0041] Figure 3 yes Figure 2 A schematic diagram of the structure of part A in the diagram.

[0042] Figure 4 yes Figure 3 A structural diagram of part B in the diagram.

[0043] Figure 5 yes Figure 2 A structural diagram of part C in the diagram.

[0044] Figure 6 yes Figure 2 A structural diagram of part D in the diagram.

[0045] Figure 7 This is a schematic diagram of the construction method for a three-way adjustable positioning device for an inwardly tilting steel box arch rib.

[0046] Explanation of reference numerals in the attached drawings: 1. Hollow base; 2. Electric telescopic rod; 3. Push plate; 4. Vertical plate; 5. U-shaped frame; 6. Rotating shaft; 7. Sub-bracket; 8. Prism; 9. Damping pad; 10. Rectangular hole; 11. Rectangular sealing plate; 12. Auxiliary plate; 13. Magnet one; 14. Magnet two; 15. Adjusting shaft; 16. Square plate; 17. Gear; 18. Tooth plate; 19. Base one; 20. Base two; 21. Moving block; 22. Moving hole; 23. Limiting groove; 24. Limiting block; 25. Power motor; 26. Power shaft; 27. Electromagnet; 28. Transparent lamp frame; 29. ​​Colored LED beads; 30. Bracket; 31. Control switch; 32. Contact connector; 33. Outer frame; 34. T-shaped part; 35. Spring body; 36. Rotating plate; 37. Steel ball one; 38. Steel ball two. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0048] This application discloses a three-way adjustable positioning device and construction method for inward-tilting steel box arch ribs.

[0049] Reference Figure 1-6 The three-way adjustment and positioning device for the inward tilting steel box arch rib was disclosed.

[0050] In the embodiments of this application, the inward tilting steel box arch rib positioning three-way adjustment positioning device includes a hollow base 1, a three-way adjustment positioning component and a storage and protection component, both of which are mounted on the hollow base 1.

[0051] In the embodiments of this application, the three-way adjustment and positioning assembly includes an electric telescopic rod 2, a push plate 3, a vertical plate 4, a U-shaped frame 5, a rotating shaft 6, a sub-support 7, and a prism 8. The electric telescopic rod 2 is fixedly installed on the bottom inner wall of the hollow base 1. The telescopic end of the electric telescopic rod 2 is fixedly connected to the push plate 3, and the top of the push plate 3 is fixedly connected to the vertical plate 4. The U-shaped frame 5 is fixedly installed on the vertical plate 4, the rotating shaft 6 is rotatably installed on the U-shaped frame 5, the sub-support 7 is fixedly installed on the rotating shaft 6, and the prism 8 is fixedly installed on the sub-support 7. It should be noted that this arrangement facilitates the rotational adjustment and positioning of the prism 8. The use of the electric telescopic rod makes the height of the push plate adjustable, adapting to steel box arch ribs of different heights and improving the versatility of the device. The design of the U-shaped frame and the rotating shaft allows the sub-support to rotate in the horizontal plane, realizing the horizontal adjustment of the steel box arch ribs and further improving the positioning accuracy. The design of the rectangular sealing plate and the auxiliary plate can protect sensitive components such as the prism and also facilitate the storage of the device, saving space. The entire device adopts a hollow base design, which reduces weight and facilitates handling and installation. The three-way adjustment and positioning assembly also includes a base 19, a base 20, a moving block 21, a limiting block 24, a power motor 25, a power shaft 26, and an electromagnet 27. The top of the base 19 is fixedly connected to the hollow base 1. A moving hole 22 is opened on one side of the base 19. The moving block 21 is slidably installed in the moving hole 22. The limiting block 24 is fixedly installed at the bottom of the moving block 21. It should be noted that the base 19 and the base 20 can move together to adjust and position the prism 8 laterally. The power motor 25 is fixedly installed on one side of the base 19. The output end of the power motor 25 is fixedly connected to the power shaft 26. The power shaft 26 has a power thread on its outer side, and the limit block 24 has a power screw hole on one side. The power thread is threaded into the power screw hole. The bottom of both the base 19 and the base 20 has a placement groove, and the electromagnet 27 is fixedly installed in the placement groove. It should be noted that the electromagnet 27 is attracted to the inside of the inward-tilting steel box, which ensures the overall stability. The design of the power motor and the power shaft allows the limit block to move vertically, realizing the vertical adjustment of the steel box arch rib and further improving the positioning accuracy. The design of the moving hole and the moving block makes the movement of the limit block smoother and avoids errors caused by vibration. The use of the electromagnet not only provides a stable attraction force, but also allows for precise control of the attraction force by controlling the magnitude of the current, improving the flexibility of the device. The entire device adopts a hollow base design, which reduces weight and facilitates transportation and installation.

[0052] Furthermore, a damping pad 9 is fixedly connected inside the U-shaped frame 5. The rotating shaft 6 abuts against the inner side of the damping pad 9, and the damping pad 9 can apply a large frictional force to the rotating shaft 6, thus ensuring the stability of the rotating shaft 6 when it rotates to a certain position. One side of the second base 20 contacts the first base 19, and the top of the second base 20 contacts the hollow seat 1, which can limit the position of the second base 20. The push plate 3 is slidably installed inside the hollow seat 1, and a limit groove 23 is opened on the inner wall of the bottom of the moving hole 22. The limit block 24 is slidably installed in the limit groove 23. It should be noted that this allows the push plate 3 and the limit block 24 to move stably in the vertical and horizontal directions, respectively.

[0053] In the embodiments of this application, the storage and protection assembly includes a rectangular sealing plate 11 and an auxiliary plate 12. Rectangular holes 10 are provided on both sides of the hollow base 1. The rectangular sealing plate 11 is slidably installed within the rectangular holes 10. The top of the auxiliary plate 12 is fixedly connected to the rectangular sealing plate 11, and the two rectangular sealing plates 11 are in contact on their closest sides. By adding the rectangular sealing plate and auxiliary plate, sensitive components such as prisms can be protected from damage during transportation and construction. The design of the rectangular sealing plate and auxiliary plate not only protects sensitive components such as prisms but also allows for convenient storage of the device, saving space. The entire device has a compact structure, is easy to operate, and reduces construction difficulty and risk. The storage and protection assembly also includes magnet 13, magnet 2 14, adjusting shaft 15, square plate 16, gear 17 and toothed plate 18. A mounting groove 1 is provided on one side of the auxiliary plate 12, and magnet 13 is fixedly installed in the mounting groove 1. Mounting groove 2 is provided on both inner walls of the hollow base 1, and magnet 2 14 is fixedly installed in the mounting groove 2. It should be noted that the setting of magnet 13 and magnet 2 14 facilitates the limiting of the auxiliary plate 12 and the rectangular sealing plate 11. When the toothed plate 18 moves down, it can ensure that the toothed plate 18 meshes with the gear 17. An adjusting shaft 15 is rotatably mounted on the inner wall of the hollow seat 1. An adjusting thread is provided on the outer side of the adjusting shaft 15, and an adjusting screw hole is provided on one side of the auxiliary plate 12. The adjusting thread and the adjusting screw hole are threadedly connected. A square plate 16 is fixedly mounted on the top of the push plate 3. A gear 17 is fixedly mounted on the outer side of the adjusting shaft 15, and a toothed plate 18 is fixedly mounted on the front side of the square plate 16. The gear 17 meshes with the toothed plate 18. It should be noted that during the process of moving the prism 8 in or out, with the gear 17 and toothed plate 18 meshing, the rectangular sealing plate 11 can move, opening or closing the top opening of the hollow seat 1. By realizing the automatic unfolding and retraction of the storage and protection components, the automation level of the device is improved. The use of magnet one and magnet two provides a stable adsorption force, ensuring the stability of the storage and protection components during unfolding and retraction. It can automatically move as needed to open or close the top opening of the hollow seat, improving the flexibility of the device. Furthermore, the height of the auxiliary plate can be adjusted as needed, further improving the versatility of the device.

[0054] Furthermore, the storage and protection assembly includes a warning component, which comprises a transparent light frame 28, colored LED beads 29, a bracket 30, and a control switch 31. The transparent light frame 28 is fixedly installed on the hollow base 1, the colored LED beads 29 are fixedly installed inside the transparent light frame 28, the bracket 30 is fixedly installed on the inner wall of the hollow base 1, and the control switch 31 is fixedly installed on the bracket 30. The control switch 31 is electrically connected to the colored LED beads 29 via a wire. The warning component also includes a contact connector 32, an outer frame 33, a T-shaped piece 34, and a spring 35. The contact connector 32 is electrically connected to the control switch 31. One side of the outer frame 33 is fixedly connected to the control switch 31. The T-shaped piece 34 is slidably installed on the outer frame 33. The spring body 35 is fixedly installed between the control switch 31 and the outer frame 33. A steel ball 38 is fixedly connected to one side of the T-shaped piece 34. A rotating plate 36 is fixedly connected to one end of the adjusting shaft 15. A steel ball 37 is fixedly connected to one side of the rotating plate 36. The steel ball 37 and the steel ball 38 abut against each other. It should be noted that by rotating the adjusting shaft 15, the steel ball 37 repeatedly squeezes the steel ball 38, which causes the colored LED bead 29 to repeatedly light up and turn off, thus warning the staff. By adding warning components, visibility can be improved. Incorporating transparent light frames, colored LEDs, and T-shaped components makes the device more conspicuous at night or in low-light environments, enhancing the warning effect on workers and improving safety. Adding touch connectors, springs, and steel balls one and two makes the device more sensitive, enabling timely activation of the warning lights when personnel approach, thus enhancing construction safety. Adjusting the rotation of the shaft controls the distance between steel balls one and two, thereby changing the on / off frequency of the warning lights to meet different warning needs. Adding an external frame and a rotating plate facilitates maintenance and bulb replacement, improving the maintainability of the device.

[0055] Reference Figure 7 This application also proposes a construction method for a three-way adjustable positioning device for an inwardly inclined steel box arch rib, comprising the following steps:

[0056] S1: Place base 19 and base 20 inside the inward-tilting steel box, and the electromagnets 27 on base 19 and base 20 are attracted inside the inward-tilting steel box.

[0057] S2: Start the electric telescopic rod 2, the prism 8 moves upward, the square plate 16 drives the toothed plate 18 to move, the toothed plate 18 drives the gear 17 to rotate, the gear 17 drives the adjusting shaft 15 to rotate, the auxiliary plate 12 moves horizontally, the auxiliary plate 12 drives the rectangular sealing plate 11 to move until magnet one 13 and magnet two 14 are attracted to each other.

[0058] S3: After the prism 8 is removed from the hollow base 1, the power supply to the electromagnet 27 on the second base 20 is turned off, the power motor 25 is started, the power motor 25 drives the power shaft 26 to rotate, the limit block 24 drives the moving block 21 to move, the power supply to the electromagnet 27 on the second base 20 is turned on, the power supply to the electromagnet 27 on the first base 19 is turned off, the power motor 25 is started, and the first base 19 and the hollow base 1 move to the right synchronously.

[0059] S4: When the adjusting shaft 15 rotates, it will drive the rotating plate 36 to rotate. The first steel ball 37 will squeeze the second steel ball 38. The second steel ball 38 will drive the T-shaped part 34 to move. The T-shaped part 34 will squeeze the spring body 35. The T-shaped part 34 will squeeze the contact connector 32. The control switch 31 will be turned on, turning on the colored LED beads 29.

[0060] Working principle:

[0061] First, the inward-sloping steel box girder arch ribs are erected, including the side arch section support system, the middle arch section support system, and the portal frame integral lifting support system. A passageway is reserved between the support supports of the middle arch section support system. The portal frame integral lifting support system is located at both ends of the middle arch section arch rib at the designed position. The side arch section arch ribs are installed at the designed bridge position. The middle arch section arch ribs are assembled into a whole below the designed bridge position and above the middle arch section support system. The middle arch section arch ribs are then hoisted and installed.

[0062] When it is necessary to adjust the inward-tilting steel box arch ribs in three directions, first place base 19 and base 20 inside the inward-tilting steel box. The electromagnets 27 on base 19 and base 20 are attracted to the inward-tilting steel box, which can ensure the overall stability.

[0063] Activating the electric telescopic rod 2 causes the push plate 3 to move upwards, which in turn moves the vertical plate 4 and the square plate 16 upwards. This allows the prism 8 to move upwards. The square plate 16 then moves the toothed plate 18, which in turn rotates the gear 17. The gear 17 then rotates the adjusting shaft 15. By adjusting the thread and the adjusting screw hole, the auxiliary plate 12 can move laterally. The auxiliary plate 12 then moves the rectangular sealing plates 11, causing the two rectangular sealing plates 11 to move away from each other. The direction is moved until magnet 13 and magnet 14 are attracted to each other. At this time, gear 17 and tooth plate 18 are just separated. Then prism 8 continues to move upward. At this time, the vertical position of prism 8 can be adjusted and positioned. After use, prism 8 can be easily moved into the hollow base 1 for storage and protection. The magnets 13 and 14 are set to limit the auxiliary plate 12 and rectangular sealing plate 11. When tooth plate 18 moves downward, it can ensure that tooth plate 18 and gear 17 mesh.

[0064] After the prism 8 is removed from the hollow base 1, the setting of the rotating shaft 6 facilitates the rotation and adjustment of the prism 8. When it is necessary to adjust the lateral position of the prism 8, the power supply switch of the electromagnet 27 on the second base 20 can be turned off to cut off the power. Then, the power motor 25 is started. The power motor 25 drives the power shaft 26 to rotate. Through the cooperation of the power thread and the power screw hole, the limit block 24 can drive the moving block 21 to move. The moving block 21 drives the second base 20 to move to the right. Then, the power supply of the electromagnet 27 on the second base 20 is turned on to fix the second base 20 in the inward tilting steel box. The power supply of the electromagnet 27 on the first base 19 is turned off. At this time, the power motor 25 is started. In this way, the first base 19 and the hollow base 1 can move to the right synchronously. This cycle is repeated to adjust the lateral position of the prism 8.

[0065] The three-dimensional position of prism 8 can be easily adjusted and positioned without the need for manual adjustment of its overall position, making adjustment convenient. In addition, after use, prism 8 can be easily stored and protected.

[0066] When the adjusting shaft 15 rotates, it drives the rotating plate 36 to rotate, which in turn drives the first steel ball 37 to rotate. The first steel ball 37 presses against the second steel ball 38, which in turn drives the T-shaped piece 34 to move. The T-shaped piece 34 presses against the spring body 35 and also presses against the contact connector 32, thereby turning on the control switch 31 and turning on the colored LED beads 29. This serves as a warning to outsiders before and during the use and storage of the prism 8.

[0067] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A three-way adjustable positioning device for inward-tilting steel box arch ribs, characterized in that: It includes a hollow base (1), a three-way adjustable positioning component and a storage and protection component, wherein the three-way adjustable positioning component and the storage and protection component are both disposed on the hollow base (1); The three-way adjustable positioning assembly includes an electric telescopic rod (2), a push plate (3), a vertical plate (4), a U-shaped frame (5), a rotating shaft (6), a sub-support (7), and a prism (8). The electric telescopic rod (2) is fixedly installed on the bottom inner wall of the hollow seat (1). The telescopic end of the electric telescopic rod (2) is fixedly connected to the push plate (3). The top of the push plate (3) is fixedly connected to the vertical plate (4). The U-shaped frame (5) is fixedly installed on the vertical plate (4). The rotating shaft (6) is rotatably installed on the U-shaped frame (5). The sub-support (7) is fixedly installed on the rotating shaft (6). The prism (8) is fixedly installed on the sub-support (7). The three-way adjustment positioning assembly also includes a base one (19), a base two (20), a moving block (21), and a limiting block (24). The top of the base one (19) is fixedly connected to the hollow seat (1). A moving hole (22) is provided on one side of the base one (19). The moving block (21) is slidably installed in the moving hole (22). The limiting block (24) is fixedly installed at the bottom of the moving block (21). A limiting groove (23) is provided on the inner wall of the bottom of the moving hole (22). The limiting block (24) is slidably installed in the limiting groove (23). The storage and protection assembly includes a rectangular sealing plate (11) and an auxiliary plate (12). Rectangular holes (10) are provided on both sides of the hollow base (1). The rectangular sealing plate (11) is slidably installed in the rectangular hole (10). The top of the auxiliary plate (12) is fixedly connected to the rectangular sealing plate (11). The two rectangular sealing plates (11) are in contact with each other on their closest sides. The storage and protection assembly also includes magnet one (13) and magnet two (14). One side of the auxiliary plate (12) is provided with a mounting groove one, and magnet one (13) is fixedly installed in the mounting groove one. Both sides of the hollow base (1) are provided with mounting groove two, and magnet two (14) is fixedly installed in the mounting groove two. The storage and protection assembly also includes an adjustment shaft (15), a square plate (16), a gear (17), and a toothed plate (18). The adjustment shaft (15) is rotatably mounted on the inner wall of the hollow seat (1). An adjustment thread is provided on the outer side of the adjustment shaft (15). An adjustment screw hole is provided on one side of the auxiliary plate (12). The adjustment thread is threadedly connected to the adjustment screw hole. The square plate (16) is fixedly mounted on the top of the push plate (3). The gear (17) is fixedly mounted on the outer side of the adjustment shaft (15). The toothed plate (18) is fixedly mounted on the front side of the square plate (16). The gear (17) meshes with the toothed plate (18).

2. The inward-tilting steel box arch rib positioning three-way adjustment positioning device according to claim 1, characterized in that: The three-way adjustment and positioning assembly also includes a power motor (25), a power shaft (26), and an electromagnet (27) for power supply. The power motor (25) is fixedly installed on one side of the base (19). The output end of the power motor (25) is fixedly connected to the power shaft (26). The power shaft (26) has a power thread on its outer side. The limit block (24) has a power screw hole on one side. The power thread is threadedly connected to the power screw hole. The bottom of the base (19) and the base (20) both have placement slots. The electromagnet (27) is fixedly installed in the placement slot.

3. The inward-tilting steel box arch rib positioning three-way adjustment and positioning device according to claim 1, characterized in that: The storage and protection assembly is equipped with a warning assembly, which includes a transparent light frame (28), colored LED beads (29), a bracket (30), and a control switch (31). The transparent light frame (28) is fixedly installed on the hollow base (1), the colored LED beads (29) are fixedly installed inside the transparent light frame (28), the bracket (30) is fixedly installed on the inner wall of the hollow base (1), and the control switch (31) is fixedly installed on the bracket (30). The control switch (31) is electrically connected to the colored LED beads (29) through a wire.

4. The inward-tilting steel box arch rib positioning three-way adjustment and positioning device according to claim 3, characterized in that, The warning assembly also includes a touch connector (32), an outer frame (33), a T-shaped piece (34), and a spring (35). The touch connector (32) is electrically connected to the control switch (31). One side of the outer frame (33) is fixedly connected to the control switch (31). The T-shaped piece (34) is slidably mounted on the outer frame (33). The spring (35) is fixedly mounted between the control switch (31) and the outer frame (33).

5. The inward-tilting steel box arch rib positioning three-way adjustment and positioning device according to claim 4, characterized in that, A steel ball (38) is fixedly connected to one side of the T-shaped part (34), and a rotating plate (36) is fixedly connected to one end of the adjusting shaft (15). A steel ball (37) is fixedly connected to one side of the rotating plate (36), and the steel ball (37) abuts against the steel ball (38).

6. The inward-tilting steel box arch rib positioning three-way adjustment and positioning device according to claim 1, characterized in that, The U-shaped frame (5) is fixedly connected to a damping pad (9), the rotating shaft (6) abuts against the inner side of the damping pad (9), one side of the second base (20) is in contact with the first base (19), the top of the second base (20) is in contact with the hollow seat (1), and the push plate (3) is slidably installed inside the hollow seat (1).

7. A construction method using the inward-tilting steel box arch rib positioning three-way adjustment and positioning device according to any one of claims 1-6, characterized in that, Includes the following steps: S1: Place base one (19) and base two (20) inside the inward-tilting steel box, and the electromagnets (27) on base one (19) and base two (20) are attracted to the inward-tilting steel box; S2: Start the electric telescopic rod (2), the prism (8) moves upward, the square plate (16) drives the toothed plate (18) to move, the toothed plate (18) drives the gear (17) to rotate, the gear (17) drives the adjusting shaft (15) to rotate, the auxiliary plate (12) moves horizontally, the auxiliary plate (12) drives the rectangular sealing plate (11) to move until magnet one (13) and magnet two (14) are attracted to each other; S3: After the prism (8) is removed from the hollow seat (1), the power supply of the electromagnet (27) on the second base (20) is disconnected, the power motor (25) is started, the power motor (25) drives the power shaft (26) to rotate, the limit block (24) drives the moving block (21) to move, the power supply of the electromagnet (27) on the second base (20) is turned on, the power supply of the electromagnet (27) on the first base (19) is turned off, the power motor (25) is started, and the first base (19) and the hollow seat (1) move to the right in sync; S4: When the adjusting shaft (15) rotates, it will drive the rotating plate (36) to rotate. Steel ball one (37) squeezes steel ball two (38). Steel ball two (38) drives T-shaped part (34) to move. T-shaped part (34) squeezes spring body (35). T-shaped part (34) squeezes contact joint (32). Control switch (31) is turned on, and colored LED beads (29) are turned on.

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