Steel box arch rib welding operation auxiliary positioning support

Abstract

This utility model discloses an auxiliary positioning bracket for welding steel box arch ribs, comprising two sets of crossbeams connected by a fixing rod. An arch rib is positioned between the two sets of crossbeams. Each crossbeam includes a first crossbeam and a second crossbeam. The second crossbeam is slidably inserted into the first crossbeam. One end of an adjusting screw is threaded onto the second crossbeam, and the other end of the adjusting screw is rotatably connected to the first crossbeam. An adjusting knob is located at the outer end of the adjusting screw on the first crossbeam. This application optimizes existing fixed-length upper and lower crossbeams into adjustable-length first and second crossbeams. By rotating the adjusting screw, the second crossbeam slides out relative to the first crossbeam, increasing the total length of the first and second crossbeams, thus adapting to the use of arch ribs of different specifications.

Description

Technical Field

[0001] This utility model relates to the technical field of welding operation support for steel box arch bridges, specifically an auxiliary positioning support for welding steel box arch ribs. Background Technology

[0002] With the development of construction technology, steel structures are widely used in bridge construction, especially steel arch bridges. However, due to the large size of bridge structures, a segmented prefabrication and on-site splicing construction method is usually adopted. On-site splicing mainly uses welding and bolting connections. When using welding connections, it is necessary to maximize welding accuracy to ensure that the structural alignment meets design requirements after splicing. However, for the welding of arch ribs in large-sized steel arch bridges, the large structural size and high-altitude operations are difficult, and the arch ribs are difficult to fix due to their curved shape. If the welding accuracy does not meet the design requirements, it will directly change the stress state of the arch ribs, thus affecting the safety of the entire bridge structure.

[0003] like Figure 5 As shown in Chinese Patent Publication No. CN216858742U, an auxiliary positioning bracket for welding arch ribs of steel box girder bridges is disclosed. It includes an upper crossbeam and a lower crossbeam respectively clamped to the upper and lower surfaces of the arch rib. Lateral crossbeams are fixed to the bottom surface of the upper crossbeam and the top surface of the lower crossbeam. Support rods are connected to the upper and lower crossbeams and to each lateral crossbeam. Push rods are installed through each support rod, with one end of each push rod facing the weld seam of the arch rib and connected to a limiting plate. This patent provides stable and reliable support for the welding of the arch rib, effectively ensuring welding quality and the splicing accuracy of the arch rib.

[0004] However, the dimensions of the upper and lower crossbeams in the aforementioned patents are fixed and cannot be applied to arch ribs of different specifications. Utility Model Content

[0005] This utility model provides an auxiliary positioning bracket for welding steel box arch ribs, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An auxiliary positioning bracket for welding steel box arch ribs includes two sets of crossbeams connected by a fixing rod. An arch rib is set between the two sets of crossbeams. Each crossbeam includes a first crossbeam and a second crossbeam. The second crossbeam is slidably inserted into the first crossbeam. One end of an adjusting screw is threadedly connected to the second crossbeam. The other end of the adjusting screw is rotatably connected to the first crossbeam. An adjusting knob is provided at the end of the adjusting screw located on the outside of the first crossbeam.

[0008] Preferably, both the first and second crossbeams are provided with mounting components, and several sets of mounting components are provided. The mounting components are used to install the clamping plates that support the arch rib welds.

[0009] Preferably, the second crossbeam is fixedly connected to a first limiting slider, the first limiting slider is trapezoidal in shape, and the first limiting slider is slidably connected to the first crossbeam;

[0010] The second crossbeam is provided with a second limiting slider, which is slidably connected to the first crossbeam.

[0011] Preferably, one side of the second crossbeam is located outside the first crossbeam, and this side of the second crossbeam is flush with the side of the first crossbeam, dividing the side of the first crossbeam into two halves.

[0012] Preferably, the first crossbeam, which is divided into two halves, is symmetrically provided with mounting components on its sides, and the spacing between the symmetrically provided mounting components is equal to the spacing between adjacent mounting components provided on the second crossbeam.

[0013] Preferably, a fixing block is provided on the fixing rod, the fixing block is fitted with the arch rib, and the fixing block is used to fix the arch rib.

[0014] Preferably, the installation component includes a housing, which is fixedly connected to the first crossbeam and the second crossbeam. The housing is provided with two sets of insertion holes, and each insertion hole is provided with a locking groove rod in the vertical direction. The locking groove rod is located between the two sets of insertion holes, and each end of the locking groove rod is provided with a first limiting protrusion.

[0015] Preferably, one end of a spring is connected to one set of first limiting protrusions, and an unlocking button is fixedly connected to the other set of first limiting protrusions;

[0016] The box body is provided with an unlocking hole;

[0017] The unlock button is located on the outside of the box and is slidably connected to the unlock hole.

[0018] Preferably, a locking groove rod is inserted into the socket, and a second limiting protrusion is provided at both ends of the locking groove rod. A card plate mounting bracket is fixedly connected to one set of the second limiting protrusions.

[0019] Preferably, the mounting bracket is used to install the mounting plate that supports the weld seam of the arch rib.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] This application optimizes the existing fixed-length upper and lower crossbeams into adjustable-length first and second crossbeams. By rotating the adjusting screw, the second crossbeam slides out relative to the first crossbeam, increasing the total length of the first and second crossbeams, thus enabling them to adapt to the use of arch ribs of different specifications. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the main structure of this utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of the insertion structure between the first and second crossbeams of this utility model;

[0024] Figure 3 This is a top view of the insertion structure between the first and second crossbeams of this utility model;

[0025] Figure 4 This is a schematic diagram of the installation component structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the existing positioning bracket structure.

[0027] In the diagram: 1. First crossbeam; 2. Second crossbeam; 3. First limiting slider; 4. Second limiting slider; 5. Mounting assembly; 6. Box body; 7. Insertion hole; 8. Locking groove rod; 9. First limiting protrusion; 10. Unlocking hole; 11. Spring; 12. Unlocking button; 13. Locking groove rod; 14. Second limiting protrusion; 15. Card plate mounting bracket; 16. Fixing rod; 17. Fixing block; 18. Arch rib; 19. Adjusting screw; 20. Adjusting knob. Detailed Implementation

[0028] In this utility model, the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the utility model. They are merely used to distinguish protective components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Example 1

[0030] Please see Figure 1-3A steel box arch rib welding auxiliary positioning bracket includes two sets of crossbeams. The two sets of crossbeams are connected by a fixing rod 16. An arch rib 18 is set between the two sets of crossbeams. The crossbeams include a first crossbeam 1 and a second crossbeam 2. The second crossbeam 2 is slidably inserted into the first crossbeam 1. One end of the second crossbeam 2 is threadedly connected to an adjusting screw 19. The other end of the adjusting screw 19 is rotatably connected to the first crossbeam 1. An adjusting knob 20 is provided at the end of the adjusting screw 19 located outside the first crossbeam 1.

[0031] Both the first crossbeam 1 and the second crossbeam 2 are provided with mounting components 5. Several sets of mounting components 5 are provided. The mounting components 5 are used to install the clamping plates that support the weld of the arch rib 18.

[0032] The clamping plate can refer to the limiting clamping plate disclosed in the auxiliary positioning bracket for welding arch ribs of steel box arch bridges, Chinese Patent Announcement No. CN216858742U.

[0033] The second crossbeam 2 is fixedly connected to the first limiting slider 3, which is trapezoidal in shape and slidably connected to the first crossbeam 1.

[0034] The second crossbeam 2 is provided with a second limiting slider 4, which is slidably connected to the first crossbeam 1.

[0035] One side of the second crossbeam 2 is located outside the first crossbeam 1, and this side of the second crossbeam 2 is flush with the side of the first crossbeam 1, dividing the side of the first crossbeam 1 into two halves.

[0036] A fixing block 17 is provided on the fixing rod 16. The fixing block 17 fits against the arch rib 18 and is used to fix the arch rib 18.

[0037] The working principle and beneficial effects of the above scheme are as follows:

[0038] This application optimizes the existing fixed-length upper and lower crossbeams into adjustable-length first crossbeam 1 and second crossbeam 2. By rotating the adjusting screw 19, the second crossbeam 2 slides out relative to the first crossbeam 1, increasing the total length of the first crossbeam 1 and the second crossbeam 2, so that it can be adapted to the use of arch ribs of different specifications.

[0039] During positioning, the fixing rod 16 is placed on both sides of the arch rib 18 and fixed to the first crossbeam 1 and the second crossbeam 2. The adjusting knob 20 is rotated to make the adjusting screw 19 rotate, which drives the second crossbeam 2 to move relative to the first crossbeam 1, changing the total length of the first crossbeam 1 and the second crossbeam 2, so that the fixing block 17 fits tightly with the arch rib 18, and the bracket is fixed relative to the arch rib 18.

[0040] The first limiting slider 3 and the second limiting slider 4 are set so that the second crossbeam 2 can only move in the length direction relative to the first crossbeam 1;

[0041] The setup of several sets of installation components 5 can ensure the support of the weld seam by adding clamping plates when the arch ribs 18 have different specifications.

[0042] Example 2

[0043] Please see Figures 3-4 Based on Embodiment 1, both the first crossbeam 1 and the second crossbeam 2 are provided with mounting components 5. Several sets of mounting components 5 are provided, and the mounting components 5 are used to install the clamping plates that support the weld of the arch rib 18.

[0044] The first crossbeam 1, which is divided into two halves, has mounting components 5 symmetrically arranged on its sides, and the spacing between the symmetrically arranged mounting components 5 is equal to the spacing between adjacent mounting components 5 arranged on the second crossbeam 2.

[0045] The installation component 5 includes a housing 6, which is fixedly connected to the first crossbeam 1 and the second crossbeam 2. The housing 6 is provided with two sets of insertion holes 7. Each insertion hole 7 is provided with a locking groove rod 8 in the vertical direction. The locking groove rod 8 is located between the two sets of insertion holes 7. Both ends of the locking groove rod 8 are provided with a first limiting protrusion 9.

[0046] One end of a spring 11 is connected to one set of first limiting protrusions 9, and an unlocking button 12 is fixedly connected to the other set of first limiting protrusions 9.

[0047] The box body 6 is provided with an unlocking hole 10;

[0048] The unlock button 12 is located on the outside of the box 6, and the unlock button 12 is slidably connected to the unlock hole 10.

[0049] A locking groove rod 13 is inserted into the insertion hole 7. Both ends of the locking groove rod 13 are provided with second limiting protrusions 14. A card plate mounting bracket 15 is fixedly connected to one set of second limiting protrusions 14.

[0050] The mounting bracket 15 is used to install the mounting plate that supports the weld of the arch rib 18.

[0051] The working principle and beneficial effects of the above scheme are as follows:

[0052] When installing the card plate, the card plate mounting bracket 15, which is fixed to the card plate, needs to be fixedly connected to the box body 6. When the locking groove rod 13, which is fixed to the card plate mounting bracket 15, is inserted into the insertion hole 7, the second limiting protrusion 14 presses against the first limiting protrusion 9, so that the locking groove rod 8 moves against the elastic force of the spring 11. When the locking groove rod 13 is fully inserted into the insertion hole 7, the first limiting protrusion 9 returns to its original position under the action of the spring 11. The first limiting protrusion 9 engages with the groove of the locking groove rod 13, thus completing the limiting of the locking groove rod 13 and completing the installation of the card plate.

[0053] When disassembling the card plate, simply press the unlock button 12 to release the first limit protrusion 9 from the locking groove rod 13, and the card plate mounting bracket 15 can be pulled out.

[0054] Among them, the card plate installed on the first crossbeam 1 needs to have the card plate mounting bracket 15 installed in the box 6 symmetrically arranged on the first crossbeam 1, and the card plate installed on the second crossbeam 2 needs to have the card plate mounting bracket 15 installed in the adjacent box 6 on the second crossbeam 2.

[0055] The symmetrically arranged mounting components 5 are spaced at the same intervals as the adjacent mounting components 5 on the second crossbeam 2, which ensures the versatility of the card plate mounting bracket 15.

[0056] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An auxiliary positioning bracket for welding arch ribs of steel boxes, comprising two sets of crossbeams connected by fixing rods, wherein arch ribs are set between the two sets of crossbeams, characterized in that... The crossbeam includes a first crossbeam and a second crossbeam. The second crossbeam is slidably inserted into the first crossbeam. One end of the second crossbeam is threadedly connected to an adjusting screw. The other end of the adjusting screw is rotatably connected to the first crossbeam. An adjusting knob is provided at the end of the adjusting screw located on the outside of the first crossbeam.

2. The auxiliary positioning bracket for welding steel box arch ribs according to claim 1, characterized in that, Both the first and second crossbeams are equipped with mounting components, and there are several sets of mounting components. The mounting components are used to install the clamping plates that support the weld seams of the arch ribs.

3. The auxiliary positioning bracket for welding steel box arch ribs according to claim 1, characterized in that, The second crossbeam is fixedly connected to the first limiting slider, which is trapezoidal in shape and slidably connected to the first crossbeam. A second limiting slider is provided on the second crossbeam, and the second limiting slider is slidably connected to the first crossbeam.

4. The auxiliary positioning bracket for welding steel box arch ribs according to claim 1, characterized in that, One side of the second crossbeam is located outside the first crossbeam, and this side of the second crossbeam is flush with the side of the first crossbeam, dividing the side of the first crossbeam into two halves.

5. The auxiliary positioning bracket for welding steel box arch ribs according to claim 2, characterized in that, The first crossbeam, which is divided into two halves, has mounting components symmetrically arranged on its sides, and the spacing between the symmetrically arranged mounting components is equal to the spacing between adjacent mounting components arranged on the second crossbeam.

6. The auxiliary positioning bracket for welding steel box arch ribs according to claim 1, characterized in that, A fixing block is provided on the fixing rod. The fixing block fits into the arch rib and is used to fix the arch rib.

7. The auxiliary positioning bracket for welding steel box arch ribs according to claim 2, characterized in that, The mounting assembly includes a housing, which is fixedly connected to the first crossbeam and the second crossbeam. The housing has two sets of insertion holes, and a locking groove rod is provided vertically in the insertion holes. The locking groove rod is located between the two sets of insertion holes, and a first limiting protrusion is provided at both ends of the locking groove rod.

8. The auxiliary positioning bracket for welding steel box arch ribs according to claim 7, characterized in that, One set of first limiting protrusions is connected to one end of a spring, and the other set of first limiting protrusions is fixedly connected to an unlocking button; The box has an unlocking hole; The unlock button is located on the outside of the box and slides into the unlock hole.

9. The auxiliary positioning bracket for welding steel box arch ribs according to claim 8, characterized in that, A locking groove rod is inserted into the socket. Both ends of the locking groove rod are provided with second limiting protrusions. A card plate mounting bracket is fixedly connected to one of the second limiting protrusions.

10. The auxiliary positioning bracket for welding steel box arch ribs according to claim 9, characterized in that, The tray mounting bracket is used to install trays that support the weld seams of the arch ribs.

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