Bridge swivel structure

Abstract

A bridge swivel structure comprises an upper spherical hinge and a lower spherical hinge and further comprises a rotating part driving the upper spherical hinge to rotate and a stabilizing part monitoring stable rotation of the upper spherical hinge, and the rotating part and the stabilizing part are used in cooperation and arranged on the outer side of the upper spherical hinge. The stabilizing part comprises a fixing ring, friction blocks and a connecting block, the friction blocks are arranged on the circumference of the outer side wall of the upper spherical hinge, arc-shaped attaching grooves are formed in the friction blocks, the fixing ring is arranged on the periphery of the upper spherical hinge and fixedly connected with the lower spherical hinge through a stand column, and a plurality of limiting blocks are arranged on the circumference of the inner side of the fixing ring; a plurality of arc-shaped connecting blocks are arranged on the circumference of the inner side of the bottom end of the fixing ring. A limiting hole is formed in the limiting block, and an adaptive hole matched with the limiting hole is formed in the friction block. Whether the upper spherical hinge deviates in the rotating process or not can be known by observing whether the adaptive hole and the limiting hole are coaxial or not, the upper spherical hinge can be temporarily fixed by inserting the plug pins into the adaptive hole and the limiting hole, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction engineering, and more specifically, to a bridge rotating structure. Background Art

[0002] Bridge rotation construction refers to a construction method in which the bridge structure is formed (cast or spliced) in a non-design axis position and then rotated into place. It can convert operations above obstacles into operations on the shore or near the ground. According to the rotation direction of the bridge structure, it can be divided into vertical rotation construction method, horizontal rotation construction method (referred to as vertical rotation method and horizontal rotation method) and a combination of horizontal rotation and vertical rotation, among which the horizontal rotation method is the most widely used. It is mainly used in situations where support cannot be provided, such as crossing canyons, rivers, railways, highways, etc. The existing bridge rotation structure generally realizes the horizontal rotation of the bridge through the relative rotation of the upper and lower turntables and the following problems:

[0003] When the bridge is located on the rotating structure support, it is not stable enough during the rotation process and cannot maintain a good balance. It will deflect and cannot ensure smooth rotation. Utility Model Content

[0004] The main purpose of the utility model is to provide a bridge swivel structure, which can effectively solve the problems in the background technology, and aims to ensure that the bridge can maintain balance during the rotation process, without deflection, and can rotate stably and smoothly.

[0005] The technical idea of ​​the utility model is:

[0006] The fitting groove and connecting block in the friction block are used to monitor and ensure that the top surface of the upper ball joint is always in a horizontal state during rotation without tilting or offsetting. At the same time, the upper ball joint is rotated by driving the sliding block to slide in the sliding groove using a jack, thereby achieving the effect of driving the bridge to rotate smoothly.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A bridge swivel structure includes an upper ball joint and a lower ball joint, and also includes a rotating part that drives the upper ball joint to rotate and a stabilizing part that allows the upper ball joint to maintain stable rotation. The rotating part and the stabilizing part are used in combination, and both are arranged on the outside of the upper ball joint.

[0009] In order to make the upper ball joint rotate smoothly, a further optimization scheme of the utility model is as follows: the stabilizing part includes a fixed ring, a friction block and a connecting block, a plurality of friction blocks are arranged on the circumference of the outer wall of the upper ball joint, and arc-shaped fitting grooves are opened on the friction blocks. The fixed ring is arranged on the outer circumference of the upper ball joint, and the fixed ring is fixedly connected to the lower ball joint through a column, a plurality of limit blocks are arranged on the inner circumference of the fixed ring, and a plurality of arc-shaped connecting blocks are arranged on the inner circumference of the bottom end of the fixed ring.

[0010] Furthermore, a limiting hole is provided on the limiting block, and an adapting hole matching with the limiting hole is provided on the friction block.

[0011] In order to enable the upper ball joint to rotate effortlessly, a further optimization scheme of the utility model is: the rotating part includes a connecting rod, a sliding groove and a sliding block, a circular sliding groove is provided on the lower ball joint, a connecting rod is provided on the outer side of the lower end of the upper ball joint, the end of the connecting rod is connected to the sliding block, and the sliding block is slidably connected to the sliding groove.

[0012] Particularly, a base is provided at the bottom end of the lower ball joint.

[0013] Furthermore, a fixed shaft is arranged at the center of the upper ball joint, the fixed shaft passes through the upper ball joint and the lower ball joint, and is connected to the base.

[0014] Furthermore, a plurality of jack reaction seats are arranged on the lower ball joint.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model is provided with a jack reaction seat, which is used to give a reaction force to the lower ball joint during the construction process. When rotating, the influence of inertial motion before the rotating system is stably positioned can be reduced.

[0017] (2) When the upper ball joint rotates, either the upper and lower surfaces of the connecting block are in contact with the fitting grooves on the friction block, or the upper surface of the friction block is in contact with the lower surface of the limit block. This prevents the upper ball joint from tilting or shifting during rotation. A limit hole is provided on the limit block, and an adapter hole is provided on the friction block. The adapter hole and the limit hole have the same aperture. When the friction block rotates to the bottom of the limit block, whether the upper ball joint is shifted during rotation can be determined by observing whether the adapter hole and the limit hole are coaxial. Inserting a pin in the adapter hole and the limit hole can also temporarily fix the upper ball joint, which is very convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 This is a structural schematic diagram of a bridge swivel structure of the utility model;

[0020] Figure 2 for Figure 1 The structural diagram of the middle and upper ball joint after rotation;

[0021] Figure 3 for Figure 1 A top view of

[0022] Figure 4 for Figure 2 A top view of

[0023] Figure 5 for Figure 1 Structural diagram of the middle and lower ball joints and base.

[0024] In the figure: 1. upper ball joint; 101. friction block; 102. adapter hole; 103. fitting groove; 2. lower ball joint; 201. slide groove; 3. base; 4. fixed shaft; 5. connecting rod; 501. sliding block; 6. jack reaction seat; 601. threaded hole; 7. fixing ring; 701 limit block; 702. limit hole; 703. connecting block; 704. column. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example 1

[0027] Combination Figures 1 to 5The utility model discloses a bridge swivel structure, including an upper ball joint 1 and a lower ball joint 2, and also including a rotating part that drives the upper ball joint 1 to rotate and a stabilizing part that keeps the upper ball joint 1 rotating smoothly. The rotating part and the stabilizing part are used in combination, and both are arranged on the outer side of the upper ball joint 1. A base 3 for stability is also arranged at the bottom end of the lower ball joint 2. A fixed shaft 4 is arranged at the center of the upper ball joint 1, and the fixed shaft 4 passes through the upper ball joint 1 and the lower ball joint 2 and is connected to the base 3. The upper ball joint 1 is a semicircular structure, and correspondingly, a hemispherical groove corresponding to the bottom surface of the lower ball joint 2 is opened on the lower ball joint 2. Such a design can ensure that the static friction and dynamic friction of the upper ball joint 1 are reduced when rotating, so that the upper ball joint 1 will save more effort when rotating. At the same time, the fixed shaft 4 that passes through the upper ball joint 1 and the lower ball joint 2 and is connected to the base 3 can ensure that the upper ball joint 1 does not deviate or tilt when rotating.

[0028] The stabilizing part includes a fixing ring 7, a friction block 101 and a connecting block 703. A plurality of friction blocks 101 are arranged on the circumference of the outer wall of the upper ball joint 1. The friction blocks 101 are all provided with arc-shaped fitting grooves 103. The fixing ring 7 is arranged on the outer circumference of the upper ball joint 1. A column 704 is fixedly connected to the lower end of the fixing ring 7 at equal angles. The column 704 is threadedly connected to the lower ball joint 2. A plurality of limit blocks 701 are arranged on the inner circumference of the fixing ring 7. The connecting block 703 is an arc-shaped structure and is used in conjunction with the fitting groove 103.

[0029] The top of the column 704 is fixedly connected to the bottom surface of the fixing ring 7, and the lower end is threadedly connected to the lower ball joint 2, which makes it more convenient and quick for the staff to disassemble the fixing ring 7. The structure of the fixing ring 7 is set to a circular ring type. In this embodiment, the number of columns 704 is set to four, the number of limit blocks 701 is set to 6, and the angular spacing between two adjacent limit blocks 701 is 60°, so correspondingly, the number of connecting blocks 703 and friction blocks 101 is also set to six.

[0030] The limit block 701 is an isosceles trapezoidal structure. A limit hole 702 is provided on the limit block 701, and an adapting hole 102 is provided on the friction block 101 to match the limit hole 702. The diameters of the limit hole 702 and the adapting hole 102 are equal. When the upper ball joint 1 rotates, either the upper and lower surfaces of the connecting block 703 are in contact with the fitting groove 103 provided on the friction block 101, or the upper surface of the friction block 101 is in contact with the lower surface of the limiting block 701, so that the upper ball joint 1 can be kept from tilting and deflecting during the rotation process, and the limiting block 701 is provided with a limiting hole 702, and the friction block 101 is provided with an adapting hole 102, and the position of the adapting hole 102 is located inside the fitting groove 103; the adapting hole 102 has the same aperture as the limiting hole 702, and when the friction block 101 rotates to the bottom of the limiting block 701, by observing whether the adapting hole 102 is coaxial with the limiting hole 702, it can be known whether the upper ball joint 1 is deflected during the rotation process, and inserting a pin into the adapting hole 102 and the limiting hole 702 can also temporarily fix the upper ball joint 1. It is convenient for the staff to choose the next operation according to the actual situation.

[0031] The rotating part includes a connecting rod 5, a slide groove 201 and a sliding block 501. A circular slide groove 201 is provided on the lower ball joint 2. A connecting rod 5 is fixedly connected to the outer side of the lower end of the upper ball joint 1. The connecting rod 5 is located below the connecting block 703. The end of the connecting rod 5 is fixedly connected to the sliding block 501. The sliding block 501 is slidably connected to the slide groove 201. The connecting rod 5 and the sliding block 501 are both symmetrically arranged. In this embodiment, the number of the connecting rods 5 is set to two, and the number of the sliding blocks 501 is also set to two. The slide groove 201 is a circular slide groove 201. Four jack reaction seats 6 are also provided on the lower ball joint 2. The jack reaction seats 6 are provided with threaded holes 601 for fixing the jack. The bottom of the jack is against the corresponding jack reaction seat 6. The top of the jack's telescopic rod is against the sliding block 501. The sliding block 501 will slide in the slide groove 201, which can drive the upper ball joint 1 to rotate, and then drive the bridge connected to the top of the fixed shaft 4 to rotate.

[0032] Example 2 Application Case

[0033] This embodiment describes the application of the utility model in the field of bridge construction engineering technology. When in use, the bottom of the jack is connected to the jack reaction seat 6 in the correct position through the threaded hole 601 on the jack reaction seat 6, and the telescopic rod on the top of the jack supports the sliding block 501, extending the length of the telescopic rod, thereby pushing the sliding block 501 to slide in the slide groove 201, driving the upper ball joint 1 to rotate, and the connecting block 703 smoothly disengages from the fitting groove 103, and rotates until the upper top surface of the friction block 101 fits with the lower bottom surface of the limit block 701, and observes whether the limit hole 702 and the adapter hole 102 are coaxial. If they are coaxial, the rotation of the upper ball joint 1 with the edge is stable and does not tilt. At this time, the pin can be inserted into the adapter hole 102 and the limit hole 702 to achieve temporary fixation of the upper ball joint 1, or it can continue to rotate and observe whether the connecting block 703 can smoothly enter the next fitting groove 103 to ensure that the upper ball joint 1 rotates smoothly.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bridge swivel structure, comprising an upper ball joint (1) and a lower ball joint (2), characterized in that: It also includes a rotating part that drives the upper ball joint (1) to rotate and a stabilizing part that enables the upper ball joint (1) to maintain stable rotation. The rotating part and the stabilizing part are used in conjunction with each other and are both arranged on the outside of the upper ball joint (1).

2. A bridge rotating structure according to claim 1, characterized in that: The stabilizing portion comprises a fixed ring (7), a friction block (101) and a connecting block (703); a plurality of friction blocks (101) are arranged on the circumference of the outer wall of the upper ball joint (1); arc-shaped fitting grooves (103) are provided on the friction blocks (101); the fixed ring (7) is arranged on the outer circumference of the upper ball joint (1); the fixed ring (7) is fixedly connected to the lower ball joint (2) via a column (704); a plurality of limit blocks (701) are arranged on the inner circumference of the fixed ring (7); and a plurality of arc-shaped connecting blocks (703) are arranged on the inner circumference of the bottom end of the fixed ring (7).

3. A bridge rotating structure according to claim 2, characterized in that: A limiting hole (702) is provided on the limiting block (701), and an adapting hole (102) matching with the limiting hole (702) is provided on the friction block (101).

4. The bridge rotating structure according to claim 1, characterized in that: The rotating part comprises a connecting rod (5), a sliding groove (201) and a sliding block (501); a circular sliding groove (201) is provided on the lower ball joint (2); a connecting rod (5) is provided on the outer side of the lower end of the upper ball joint (1); the end of the connecting rod (5) is connected to the sliding block (501); and the sliding block (501) is slidably connected to the sliding groove (201).

5. The bridge rotating structure according to claim 1, characterized in that: A base (3) is provided at the bottom end of the lower ball joint (2).

6. A bridge rotating structure according to claim 5, characterized in that: A fixed shaft (4) is arranged at the center of the upper ball joint (1), and the fixed shaft (4) passes through the upper ball joint (1) and the lower ball joint (2) and is connected to the base (3).

7. The bridge rotating structure according to claim 1, characterized in that: A plurality of jack reaction seats (6) are also arranged on the lower ball joint (2).

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