Bridge swivel spherical hinge elevation fine adjustment device

Abstract

The utility model discloses a bridge swivel spherical hinge elevation fine adjustment device, belongs to the technical field of bridge swivel spherical hinge elevation fine adjustment devices, and solves the technical problems that although a jack is used for jacking a spherical hinge in the prior art, an adjusting nut is positioned below the spherical hinge for elevation adjustment, constructors are very easy to operate between the spherical hinge and a positioning framework, and the construction efficiency is high. And in the construction process, the phenomenon that the jack loses efficacy or operation is not standard and cannot bear load is likely to occur, so that the spherical hinge falls down, and the personal safety of constructors is threatened. The device comprises a clamping structure clamped on a positioning framework, an upward jacking structure which is arranged on the outer side of the positioning framework and is matched with the clamping structure in a longitudinal sliding manner, and an elevation adjusting structure which is arranged on the upward jacking structure and is used for adjusting the upward jacking structure to ascend and descend; the elevation adjusting structure comprises a threaded rod fixedly arranged on the clamping structure and a threaded sleeve rod matched with the threaded rod and the jacking structure. The device is used for fine adjustment of the elevation of the bridge swivel spherical hinge.

Description

Technical Field

[0001] A bridge spherical hinge elevation fine-tuning device is disclosed, which is used for fine-tuning the elevation of the bridge spherical hinge and belongs to the technical field of bridge spherical hinge elevation fine-tuning devices. Background Technology

[0002] The main process flow of the rotation construction is as follows: pouring the first layer of concrete for the lower foundation → roughening and washing → installing the ball joint and slide positioning frame → installing and fine-tuning the ball joint and slide plate → cleaning and protecting the ball joint → pouring the second layer of concrete for the lower foundation → pouring the concrete for the jacks and traction reaction seats → installing the upper ball joint, support legs, and sand box → construction of the upper turntable → construction of the upper turntable → temporary restraint of the upper and lower turntables, etc.

[0003] Bridge rotation with spherical hinge elevation fine-tuning refers to the use of rotation construction when a new bridge needs to cross existing roads, railways, or other obstacles, which can reduce the impact on traffic. The elevation fine-tuning device ensures that the bridge maintains an accurate height during the rotation process for smooth docking.

[0004] In practical applications, due to manufacturing errors, construction deviations, or the requirements of bridge structural design, it may be necessary to adjust the elevation at multiple locations of the ball joint. This can ensure the balance of the ball joint on the entire plane and avoid uneven stress during the bridge rotation process caused by local elevation differences.

[0005] In existing technology, when there is an elevation deviation in the ball joint, a small jack is used to hold the lower part of the ball joint, and an adjusting nut is used to adjust the height. Although this method can adjust the elevation deviation, it has the following technical problems:

[0006] 1. Although the ball joint is held in place by a jack, the adjusting nut is located below the ball joint for elevation adjustment. Construction workers can easily work between the ball joint and the positioning frame. During construction, the jack may fail or be operated improperly and unable to bear the weight, causing the ball joint to fall and threatening the personal safety of the construction workers.

[0007] 2. After the elevation is adjusted by adjusting the nut, the limiting channel steel cannot be installed on the bottom of the lower ball joint to match the positioning frame, which can easily affect the accuracy of the elevation adjustment. Utility Model Content

[0008] The purpose of this utility model is to provide a bridge spherical hinge elevation fine adjustment device, which solves the problem that although the existing technology has a jack to hold the spherical hinge in place, the adjusting nut is located below the spherical hinge for elevation adjustment. Construction workers can easily work between the spherical hinge and the positioning frame. During construction, the jack may fail or be operated improperly and fail to bear the weight, causing the spherical hinge to fall, which threatens the personal safety of the construction workers.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A bridge rotating ball joint elevation fine adjustment device includes a clamping structure clamped on a positioning frame, an upper top structure disposed in cooperation with the longitudinal sliding of the clamping structure, and an elevation adjustment structure disposed on the clamping structure and the upper top structure outside the positioning frame to adjust the lifting and lowering of the upper top structure.

[0011] The elevation adjustment structure includes a threaded rod fixedly mounted on the clamping structure, and a threaded sleeve rod that cooperates with the threaded rod and the upper top structure.

[0012] Furthermore, the clamping structure includes a base plate, a U-shaped frame with an opening outside the positioning frame on the base plate, a T-shaped sliding groove on the opposite side of the U-shaped frame, an upper clamping plate corresponding to the base plate on one side of the bottom of the U-shaped frame, a threaded hole on the base plate, and an I-shaped threaded component on the threaded hole.

[0013] The threaded rod is fixedly mounted on the base plate.

[0014] Furthermore, the I-shaped threaded component includes a rotating head, a screw mounted on the rotating head that mates with a threaded hole, and a lower clamping plate mounted on the screw that mates with an upper clamping plate to clamp and position the frame.

[0015] Furthermore, the upper top structure includes an inverted T-shaped sliding rod that slides in conjunction with the T-shaped sliding groove, and a support plate that is disposed on the T-shaped sliding rod and cooperates with the bottom of the ball joint to support the ball joint;

[0016] The threaded sleeve is rotatably mounted on the support plate via a bearing.

[0017] Furthermore, a limiting block is provided at the top of the T-shaped slide groove to limit the movement of the inverted T-shaped sliding rod.

[0018] Furthermore, the upper and lower clamping plates are provided with rubber pads that cooperate with the positioning frame.

[0019] Furthermore, the upper clamping plate and the support plate are provided with U-shaped openings corresponding to the elevation adjustment structure, and the opening side of the U-shaped opening is located inside the positioning frame.

[0020] Furthermore, the bottom of the U-shaped frame is provided with a welding port corresponding to the U-shaped opening and used for welding the limiting channel steel.

[0021] Furthermore, the threaded sleeve is provided with an anti-slip rotating handle.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] I. In this utility model, when fine-tuning the elevation of a bridge spherical hinge, after the jack lifts the bridge spherical hinge, it is clamped onto the positioning frame below the hinge by a clamping structure. Then, the height of the upper lifting structure is adjusted by rotating the threaded sleeve rod in the elevation adjustment structure located outside the positioning frame, allowing it to move up or down along the threaded rod to support the hinge. Construction personnel will not work between the hinge and the positioning frame to adjust the height of the upper lifting structure, but will work outside the hinge and below the positioning frame. This effectively avoids the problem of the hinge falling due to jack failure or improper operation during construction, which could threaten the personal safety of construction personnel.

[0024] II. The clamping structure in this utility model places the positioning frame between the upper clamping plate and the I-shaped threaded part, and adjusts the I-shaped threaded part to cooperate with the threaded hole on the bottom plate so that it rises up and cooperates with the upper clamping plate to clamp onto the positioning frame, so as to avoid the problem of displacement caused by the gravity of the ball joint or displacement when adjusting the elevation.

[0025] Third, the I-shaped threaded component in this utility model allows construction personnel to adjust the longitudinal position of the rotating head by means of tools or manual operation, rotating the screw and the lower clamping plate on it in conjunction with the threaded hole. The structure is simple and easy to operate.

[0026] IV. The upper structure in this utility model is longitudinally slidable by a sliding rod and a sliding groove. Under the limiting action of the sliding groove, the rotating threaded sleeve rod is rotated and coordinated with the support plate and the threaded rod. The upper structure is raised or lowered according to the elevation requirements of the ball joint to achieve the required elevation position of the ball joint. The lowered ball joint is supported by the support plate. The operation is convenient and the elevation can be quickly adjusted.

[0027] V. The present invention defines the slide as a T-shaped slide, and a limiting block A is provided at the top of the slide, and a limiting block B is provided on the sliding rod to prevent the upper structure and the clamping structure from separating.

[0028] VI. This utility model provides rubber pads on the upper and lower clamping plates that cooperate with the positioning frame, in order to prevent the positioning frame from being damaged by force during clamping.

[0029] VII. The present invention provides a U-shaped opening on the upper clamping plate and the support plate. The purpose is to facilitate the placement of the limiting channel steel between the positioning frame and the ball joint corresponding to the elevation adjustment structure through the U-shaped opening and to weld or otherwise connect and fix it. This avoids the problem that the limiting channel steel cannot be installed on the bottom of the lower ball joint to match the positioning frame, which may affect the elevation adjustment accuracy.

[0030] 8. The present invention provides a welding port at the bottom of the U-shaped frame corresponding to the U-shaped opening, so that the limiting channel steel located on the outside side of the positioning frame and the ball joint can be welded or otherwise fixed under the support of the structure.

[0031] 9. The purpose of setting an anti-slip rotating handle on the threaded sleeve rod in this utility model is to facilitate manual or tool rotation of the threaded sleeve rod. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the structure after elevation adjustment in this utility model;

[0035] Figure 3 This is a schematic diagram of the unfolded structure of this utility model viewed from one side of the bottom of the U-shaped frame;

[0036] Figure 4 This is a schematic diagram of the unfolded structure of this utility model viewed from the top side of the U-shaped frame;

[0037] In the diagram: 1-Clamping structure, 2-Upper top structure, 3-Elevation adjustment structure, 4-Threaded rod, 5-Threaded sleeve rod, 6-Base plate, 7-U-shaped frame, 8-Slide groove, 9-Threaded hole, 10-I-shaped threaded part, 11-Rotating head, 12-Screw, 13-Lower clamping plate, 14-Sliding rod, 15-Support plate, 16-Limiting block A, 17-Limiting block B, 18-Rubber pad, 19-U-shaped opening, 20-Welding joint, 21-Anti-slip rotating handle, 22-Upper clamping plate, 23-Bearing. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0042] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0045] Example 1

[0046] To address the problem that existing technologies, while using jacks to hold the ball joint in place, involve adjusting the height of the ball joint from below, making it easy for construction workers to work between the ball joint and the positioning frame. This can lead to jack failure or improper operation during construction, causing the ball joint to fall and threatening the safety of construction workers. For example... Figure 1-4As shown, a bridge spherical hinge elevation fine-tuning device is provided, including a clamping structure 1 clamped on a positioning frame (the positioning frame is an existing mounting bracket for installing the spherical hinge, which will not be described in detail here), an upper lifting structure 2 longitudinally slidably disposed on the clamping structure 1, and an elevation adjusting structure 3 disposed on the clamping structure 1 and the upper lifting structure 2 outside the positioning frame to adjust the lifting and lowering of the upper lifting structure 2; the elevation adjusting structure 3 includes a threaded rod 4 fixedly disposed on the clamping structure 1, and a threaded sleeve 5 that rotates and cooperates with the threaded rod 4 and the upper lifting structure 2.

[0047] In practice, after the positioning frame of the ball joint is installed, the positioning frame of the slide is installed, and then the ball joint is installed. In one specific construction project, the lower ball joint has a diameter of 3.5m and is the core of the rotation system for the rotation construction, making it a key structure for the rotation construction. 730 polytetrafluoroethylene (PTFE) sliding plates with a diameter of 6cm are arranged on the lower ball joint surface, each designed with a compressive strength of 100MPa. At the same time, an appropriate number of concrete vibration holes are set on the lower ball joint surface to facilitate the construction of concrete under the ball joint surface. First, verify the center coordinates of the ball joint, ensuring the planar position is within 5mm. After determining the planar position, weld the channel steel to the ball joint frame to limit the ball joint and fix its planar position. Measure the elevation of the top surface of the ball joint, ensuring the elevation error is within 1mm. If an elevation deviation exists, use a small jack to support the lower part of the ball joint, clamping the clamping structure onto the positioning frame of the ball joint. After fixing, rotate the threaded sleeve 5 in conjunction with the upper lifting structure 2 and the threaded rod 4 to ensure the top surface of the upper lifting structure 2 reaches the required elevation. The maximum adjustment value of the threaded sleeve 5 per rotation is 2cm. Once the elevation meets the design requirements, weld the limiting channel steel to the bottom of the lower ball joint to form a whole, and then weld it to the positioning frame of the ball joint. In this embodiment, when fine-tuning the elevation of the bridge spherical hinge, after the jack lifts the spherical hinge, it is clamped onto the positioning frame below the hinge by a clamping structure. Then, the height of the upper lifting structure is adjusted by rotating the threaded sleeve in the elevation adjustment structure located outside the positioning frame, allowing it to move up or down along the threaded rod to support the spherical hinge. Construction workers do not work between the spherical hinge and the positioning frame to adjust the height of the upper lifting structure, but rather work outside the spherical hinge and below the positioning frame. This effectively avoids the problem of the spherical hinge falling due to jack failure or improper operation that could prevent it from bearing weight, thus threatening the personal safety of construction workers.

[0048] Example 2

[0049] Based on embodiment 1, the clamping structure 1 includes a base plate 6, a U-shaped frame 7 with an opening on the outside of the positioning frame, a sliding groove 8 on the opposite side of the U-shaped frame 7, an upper clamping plate 22 corresponding to the base plate 6 on one side of the bottom of the U-shaped frame 7, a threaded hole 9 on the base plate 6, and an I-shaped threaded part 10 on the threaded hole 9; the threaded rod 4 is fixedly mounted on the base plate 6.

[0050] In practice, first adjust the I-shaped threaded component 10 to engage with the threaded hole 9, causing the I-shaped threaded component 10 to descend along the threaded hole 9 until the positioning frame corresponding to the elevation adjustment position is placed between the upper clamping plate 22 and the I-shaped threaded component 10. At this point, place the positioning frame between the upper clamping plate 22 and the I-shaped threaded component 10, and then adjust the I-shaped threaded component 10 to engage with the threaded hole on the base plate to raise itself and clamp it onto the positioning frame with the upper clamping plate 22. This avoids displacement due to the gravity of the ball joint or displacement during elevation adjustment. Of course, in practice, other clamping structures may also be used.

[0051] Example 3

[0052] Based on Embodiment 2, the I-shaped threaded component 10 includes a rotating head 11, a screw 12 disposed on the rotating head 11 and rotatably engaging with the threaded hole 9, and a lower clamping plate 13 disposed on the screw 12 and engaging with the upper clamping plate 22 to clamp and position the positioning frame. When adjusting the rotational engagement between the I-shaped threaded component and the threaded hole, it is convenient for construction personnel to adjust the longitudinal position by using tools or manual operation to rotate the screw and the lower clamping plate on the rotating head and engage with the threaded hole. The structure is simple and easy to operate.

[0053] Example 4

[0054] Based on embodiment 3, the upper top structure 2 includes a sliding rod 14 that slides with the sliding groove 8, and a support plate 15 that is disposed on the sliding rod 14 and cooperates with the bottom of the ball joint to support the ball joint; the threaded sleeve 5 is rotatably disposed on the support plate 15 through the bearing 23.

[0055] In practice, based on the required elevation adjustment and the height of the support plate 15 in the upper structure 2, the rotating threaded sleeve 5, threaded rod 4, and upper structure 2 rotate in coordination under the limiting action of the slide groove. At this time, the upper structure 2 rises or falls, and the sliding rod and slide groove slide longitudinally to achieve the required elevation position of the ball joint, and the lowered ball joint is supported by the support plate. This operation is convenient and allows for rapid elevation adjustment.

[0056] Example 5

[0057] Based on embodiment 4, the slide 8 is a T-shaped slide, and a limiting block A16 is provided at the top of the slide 8; a limiting block B17 that cooperates with the limiting block A16 is provided on the sliding rod 14. The slide 8 is defined as a T-shaped slide, with the limiting block A at the top and the limiting block B on the sliding rod to prevent the upper structure from separating from the clamping structure. Of course, in practice, other structures are not excluded.

[0058] Example 6

[0059] Based on embodiment 5, rubber pads 18 that cooperate with the positioning frame are provided on the upper clamping plate 22 and the lower clamping plate 13. The purpose of providing rubber pads that cooperate with the positioning frame on the upper and lower clamping plates is to prevent the positioning frame from being damaged by force during clamping.

[0060] Example 7

[0061] Based on Embodiment 6, the upper clamping plate 22 and the support plate 15 are provided with U-shaped openings 19 corresponding to the elevation adjustment structure 3, with the opening side of the U-shaped opening 19 located inside the positioning frame. In practice, after the support plate reaches the specified height, the limiting channel steel can be placed in the U-shaped opening 19 first, and then the ball joint can be lowered. Alternatively, the limiting channel steel can be placed in the U-shaped opening 19 after the ball joint is rotated onto the support plate, and positioned in the middle of the U-shaped opening 19. At this time, under the support of this structure, the limiting channel steel can be welded to the ball joint and the positioning frame. Due to the double support of the support plate and the jack, and with the limiting channel steel placed between the ball joint and the positioning frame, the safety factor is greatly improved when welding the limiting channel steel below the ball joint. The U-shaped openings on the upper clamping plate and support plate are designed to facilitate the placement of the limiting channel steel between the positioning frame and the ball joint corresponding to the elevation adjustment structure and to perform welding or other connection and fixation. This avoids the problem that the limiting channel steel cannot be installed on the bottom of the lower ball joint to match the positioning frame, which could easily affect the elevation adjustment accuracy.

[0062] Example 8

[0063] Based on embodiment 7, the bottom of the U-shaped frame 7 is provided with a welding port 20 corresponding to the U-shaped opening 19 and used for welding the limiting channel steel. The welding port is provided at the bottom of the U-shaped frame corresponding to the U-shaped opening so that the limiting channel steel located on the outside side of the positioning frame and the ball joint can be welded or otherwise fixed under the support of this structure.

[0064] Example 9

[0065] Based on embodiment 8, the threaded sleeve 5 is provided with an anti-slip rotating handle 21. The purpose of providing an anti-slip rotating handle (such as a rubber sleeve or a cylindrical sleeve with protrusions) on the threaded sleeve is to facilitate manual or tool rotation of the threaded sleeve.

Claims

1. A bridge spherical hinge elevation fine-tuning device, characterized in that: It includes a clamping structure (1) clamped on the positioning frame, an upper lifting structure (2) that slides longitudinally on the clamping structure (1), and an elevation adjustment structure (3) that adjusts the lifting of the upper lifting structure (2) on the clamping structure (1) and the upper lifting structure (2) on the outside of the positioning frame. The elevation adjustment structure (3) includes a threaded rod (4) fixedly mounted on the clamping structure (1) and a threaded sleeve (5) that rotates in conjunction with the threaded rod (4) and the upper top structure (2).

2. The bridge spherical hinge elevation fine-tuning device according to claim 1, characterized in that: The clamping structure (1) includes a base plate (6), a U-shaped frame (7) with an opening on the outside of the positioning frame, a sliding groove (8) on the opposite side of the U-shaped frame (7), an upper clamping plate (22) corresponding to the base plate (6) on one side of the bottom of the U-shaped frame (7), a threaded hole (9) on the base plate (6), and an I-shaped threaded part (10) on the threaded hole (9). The threaded rod (4) is fixedly mounted on the base plate (6).

3. The bridge spherical hinge elevation fine-tuning device according to claim 2, characterized in that: The I-shaped threaded component (10) includes a rotating head (11), a screw (12) disposed on the rotating head (11) and rotatingly engaging with the threaded hole (9), and a lower clamping plate (13) disposed on the screw (12) and engaging with the upper clamping plate (22) to clamp and position the skeleton.

4. A bridge spherical hinge elevation fine-tuning device according to claim 2 or 3, characterized in that: The upper structure (2) includes a sliding rod (14) that slides in conjunction with the sliding groove (8), and a support plate (15) that is provided on the sliding rod (14) and cooperates with the bottom of the ball joint to support the ball joint; The threaded sleeve (5) is rotatably mounted on the support plate (15) via a bearing (23).

5. The bridge spherical hinge elevation fine-tuning device according to claim 4, characterized in that: The slide (8) is a T-shaped slide, and a limit block A (16) is provided at the top of the slide (8); The sliding rod (14) is provided with a limiting block B (17) that cooperates with the limiting block A (16).

6. The bridge spherical hinge elevation fine-tuning device according to claim 5, characterized in that: The upper clamping plate (22) and the lower clamping plate (13) are provided with rubber pads (18) that cooperate with the positioning frame.

7. The bridge spherical hinge elevation fine-tuning device according to claim 6, characterized in that: The upper clamping plate (22) and the support plate (15) are provided with U-shaped openings (19) corresponding to the elevation adjustment structure (3), and the opening side of the U-shaped openings (19) is located inside the positioning frame.

8. The bridge spherical hinge elevation fine-tuning device according to claim 7, characterized in that: The bottom of the U-shaped frame (7) is provided with a welding port (20) corresponding to the U-shaped opening (19) and used for welding the limiting channel steel.

9. The bridge spherical hinge elevation fine-tuning device according to claim 1, characterized in that: The threaded sleeve (5) is provided with an anti-slip rotating handle (21).

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