A separated type of three-dimensional intersection swivel bridge swivel structure

Abstract

The utility model discloses a separated three -dimensional intersection swivel bridge swivel structure belongs to bridge body swivel technical field, including first steel frame, the first steel frame top is equipped with tetrafluoroethylene slide plate, and tetrafluoroethylene slide plate top slidingly connected with a plurality of support foot, still including second steel frame, the second steel frame top is equipped with lower ball hinge, and the lower ball hinge top is pasted with upper ball hinge, the lower ball hinge outer wall is equipped with limiting device, in the utility model, through with upper ball hinge hoisting in lower ball hinge top, make the fixed ring of upper ball hinge outer wall extrude pin rod downwards, make pin rod move downwards and extrude first spring, make first spring produce resilience, subsequently through rotating upper ball hinge, make pin hole align pin rod, make pin rod reset through the resilience of first spring and be inserted into pin hole to the inside, thereby make pin rod through pin hole fixed upper ball hinge, thereby avoid when upper ball hinge top construction, upper ball hinge occurs rotation and influence construction accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of bridge rotation technology, and in particular relates to a split three-dimensional cross-rotation bridge rotation structure. Background Technology

[0002] Bridge rotation is a special technique in bridge construction. It involves prefabricating the bridge structure at a location not on the design axis and then rotating it as a whole to the design position using a rotation device. This technique is mainly used to cross obstacles such as railways and highways. It can significantly reduce the impact of construction on existing traffic and ensure traffic safety. Ball joints are required when rotating bridges.

[0003] Chinese utility model application No. 202221550085.7 discloses a bridge spherical hinge, relating to the field of bridge construction technology. It includes an upper hinge body, a lower hinge body, and multiple friction-reducing blocks located between the upper and lower hinge bodies. The lower hinge body has a friction-reducing block mounting hole on its concave spherical surface. The friction-reducing block is a cylindrical stepped body with a large-diameter section and a small-diameter section. The large-diameter section is pressed into the friction-reducing block mounting hole by a pressing plate, which has a pressing hole. The small-diameter section passes through the pressing hole. The pressing plate is locked and fitted to the concave spherical surface of the lower hinge body by a locking element. After locking the pressing plate, the upper end face of the small-diameter section is precision machined to form a rotating working spherical surface that precisely matches the convex spherical surface of the upper hinge body. However, in actual use, because construction is carried out on top of the upper hinge after installation, and because the upper and lower hinges slide against each other, the upper hinge will slide during construction on top, thus affecting the accuracy of subsequent construction. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the rotational displacement of the upper ball joint affects the accuracy of construction during the construction of the upper ball joint top, and to propose a split three-dimensional cross-rotating bridge rotation structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a split three-dimensional cross-rotating bridge rotating structure, comprising a first steel frame, a PTFE sliding plate installed on the top of the first steel frame, and multiple support feet slidably connected to the top of the PTFE sliding plate; and a second steel frame, a lower ball joint installed on the top of the second steel frame, with an upper ball joint fitted to the top of the lower ball joint; a limiting device provided on the outer wall of the lower ball joint, the limiting device comprising two slots and a fixing ring, with a locking block inserted into the two slots, and a first arc ring and a second arc ring respectively connected to one side of the two locking blocks; multiple pins are drivenly provided on the top of both the first and second arc rings; and multiple pin holes are opened in the fixing ring, through which the pins are inserted into the pin holes to fix and limit the upper ball joint.

[0006] As a further description of the above technical solution:

[0007] The inner wall of the fixed ring is connected to the outer wall of the upper ball joint, the slot is opened on the outer wall of the lower ball joint, and the inner walls of the first arc ring and the second arc ring are respectively attached to the outer wall of the lower ball joint.

[0008] As a further description of the above technical solution:

[0009] Both sides of the first and second arc rings are connected to fixing plates, and the two fixing plates on the same side are fixed by fixing bolts.

[0010] As a further description of the above technical solution:

[0011] The first and second arc rings each have multiple movable grooves at their tops. The inner wall of the movable groove is slidably connected to the outer wall of the pin, and one end of the pin is inserted into a corresponding pin hole. The bottom of the pin has a fixed groove, and a fixed rod is slidably connected in the fixed groove. The bottom of the fixed rod is connected to the bottom of the inner wall of the movable groove, and a first spring is sleeved on the outer wall of the fixed rod. The two ends of the first spring are respectively connected to the bottom of the pin and the bottom of the movable groove.

[0012] As a further description of the above technical solution:

[0013] The outer walls of the first and second arc rings are both fitted with push plates that slide together. A connecting groove is provided on one side of the inner wall of the movable groove, and a connecting block is slidably connected in the connecting groove. One side of the connecting block is connected to one side of the push plate, and the other side of the connecting block is connected to the outer wall of the pin.

[0014] As a further description of the above technical solution:

[0015] The lower ball joint is provided with a sealing device at its top. The sealing device includes a sealing groove, which is opened at the top of the lower ball joint. A sealing ring is slidably connected in the sealing groove. The top of the sealing ring is in contact with the bottom of the upper ball joint, and a plurality of second springs are connected to the bottom of the sealing ring. The bottom of the second springs is connected to the bottom of the sealing groove.

[0016] As a further description of the above technical solution:

[0017] The bottom of the sealing ring is provided with multiple support grooves, and a support rod is slidably connected in the support groove. The bottom of the support rod is connected to the bottom of the sealing groove, and the second spring is sleeved on the outside of the support rod.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting a limiting device, the upper ball joint is suspended on top of the lower ball joint, so that the fixing ring on the outer wall of the upper ball joint presses the pin downward, causing the pin to move downward and press the first spring, so that the first spring generates a rebound force. Then, by rotating the upper ball joint, the pin hole is aligned with the pin, so that the pin is reset by the rebound force of the first spring and inserted into the pin hole, thereby fixing the upper ball joint through the pin hole, thus avoiding the upper ball joint from rotating during construction at the top of the upper ball joint, which would affect the construction accuracy.

[0020] 2. In this utility model, by setting a sealing device, the sealing ring is pressed down by the bottom of the upper ball joint, causing the sealing ring to move downward. As the sealing ring moves downward, it presses the second spring, causing the second spring to generate a rebound force. After the upper and lower ball joints are installed, the sealing ring abuts upward by the rebound force of the second spring, thus blocking the gap between the upper and lower ball joints and preventing dust from entering and damaging the upper and lower ball joints during construction, thus affecting the rotation operation. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a split three-dimensional cross-rotating bridge rotation structure proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of a limiting device for a split-type three-dimensional cross-rotating bridge rotation structure proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the sealing device structure of a split three-dimensional cross-rotating bridge structure proposed in this utility model.

[0024] Legend: 1. PTFE sliding plate; 2. Support foot; 3. First steel frame; 4. Second steel frame; 5. Upper ball joint; 6. Lower ball joint; 7. Limiting device; 701. Fixing ring; 702. Pin hole; 703. First arc ring; 704. Pin rod; 705. Second arc ring; 706. Push plate; 707. Movable groove; 708. Connecting groove; 709. First spring; 710. Fixing rod; 711. Connecting block; 712. Fixing plate; 713. Fixing bolt; 714. Locking block; 715. Locking groove; 8. Sealing device; 801. Sealing ring; 802. Support rod; 803. Second spring; 804. Sealing groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-3 This utility model provides a technical solution: a split three-dimensional cross-rotating bridge rotating structure, including a first steel frame 3, with a PTFE sliding plate 1 installed on the top of the first steel frame 3, and multiple support legs 2 slidably connected to the top of the PTFE sliding plate 1; it also includes a second steel frame 4, with a lower ball joint 6 installed on the top of the second steel frame 4, and an upper ball joint 5 attached to the top of the lower ball joint 6; a limiting device 7 is provided on the outer wall of the lower ball joint 6, the limiting device 7 including two slots 715 and a fixing ring 701, and a locking block 714 inserted into the two slots 715. Furthermore, a first arc ring 703 and a second arc ring 705 are respectively connected to one side of the two locking blocks 714. Multiple pins 704 are driven to the top of both the first arc ring 703 and the second arc ring 705. Multiple pin holes 702 are opened inside the fixing ring 701. The pins 704 are inserted into the pin holes 702 to fix and limit the upper ball joint 5. The inner wall of the fixing ring 701 is connected to the outer wall of the upper ball joint 5. A locking groove 715 is opened on the outer wall of the lower ball joint 6, and the inner walls of the first arc ring 703 and the second arc ring 705 are respectively in contact with the outer wall of the lower ball joint 6. Both sides of the first arc ring 703 and the second arc ring 705 are connected to fixing plates 712, and the two fixing plates 712 on the same side are fixed by fixing bolts 713. The top of the first arc ring 703 and the second arc ring 705 are provided with multiple movable grooves 707. The inner wall of the movable groove 707 is slidably connected to the outer wall of the pin 704, and one end of the pin 704 is inserted into the corresponding pin hole 702. The bottom of the pin 704 is provided with a fixing groove, and a fixing rod 710 is slidably connected in the fixing groove. The bottom of the fixing rod 710 is connected to the movable groove 702. The bottom of the inner wall is connected, and the outer wall of the fixed rod 710 is fitted with a first spring 709. The two ends of the first spring 709 are respectively connected to the bottom of the pin 704 and the bottom of the movable groove 707. The outer walls of the first arc ring 703 and the second arc ring 705 are both slidably connected to the push plate 706. A connecting groove 708 is opened on one side of the inner wall of the movable groove 707, and a connecting block 711 is slidably connected in the connecting groove 708. One side of the connecting block 711 is connected to one side of the push plate 706, and the other side of the connecting block 711 is connected to the outer wall of the pin 704.

[0027] In a specific implementation, by setting a limiting device 7, the upper ball joint 5 is hoisted and placed on top of the lower ball joint 6, then moved downwards. This causes the upper ball joint 5 to move the fixing ring 701 downwards, thereby causing the bottom of the fixing ring 701 to press against the pin 704. This causes the pin 704 to move downwards, thus pressing the first spring 709. The first spring 709 then generates a rebound force. The upper ball joint 5 is then rotated, causing the fixing ring 701 to rotate. This causes the fixing ring 701 to rotate, thereby causing the pin hole 702 to rotate, aligning the pin hole 702 with the pin 704. Finally, the rebound force of the first spring 709 causes the first spring 704 to... 9. The pin 704 is reset and inserted into the pin hole 702, so that the pin 704 fixes the upper ball joint 5 through the pin hole 702, thereby preventing the upper ball joint 5 from rotating during construction at the top and affecting the accuracy of construction. By moving the push plate 706 downward, the push plate 706 drives the connecting block 711 to move. The connecting block 711 drives the pin 704 to move downward, so that the pin 704 slides out of the pin hole 702, thereby making the pin 704 lose its fixing effect on the fixing ring 701. Finally, by removing the fixing bolt 713, the first arc ring 703 and the second arc ring 705 are separated and disassembled, so that the device can be reused and the cost of use can be reduced.

[0028] The lower ball joint 6 is provided with a sealing device 8 at its top. The sealing device 8 includes a sealing groove 804, which is opened at the top of the lower ball joint 6. A sealing ring 801 is slidably connected in the sealing groove 804. The top of the sealing ring 801 is in contact with the bottom of the upper ball joint 5. A plurality of second springs 803 are connected to the bottom of the sealing ring 801. The bottom of the second springs 803 is connected to the bottom of the sealing groove 804. A plurality of support grooves are opened at the bottom of the sealing ring 801. A support rod 802 is slidably connected in the support groove. The bottom of the support rod 802 is connected to the bottom of the sealing groove 804. The second springs 803 are sleeved on the outside of the support rod 802.

[0029] In a specific implementation, by setting a sealing device 8, when the upper ball joint 5 is hoisted, the bottom of the upper ball joint 5 presses against the sealing ring 801, causing the sealing ring 801 to move downward. During the downward movement of the sealing ring 801, the second spring 803 is compressed, causing the second spring 803 to generate a rebound force. By setting a support rod 802 to support the second spring 803, the second spring 803 is prevented from bending during compression, thus affecting the rebound effect of the second spring 803. Subsequently, after the upper ball joint 5 and the lower ball joint 6 are installed, the rebound force of the second spring 803 causes the sealing ring 801 to abut upward against the bottom of the upper ball joint 5, thus blocking the gap between the upper ball joint 5 and the lower ball joint 6. This prevents dust from entering during construction and damaging the upper ball joint 5 and the lower ball joint 6, affecting the rotation operation. By setting a rubber pad on the top of the sealing ring 801, the flexibility of the rubber pad prevents the top of the sealing ring 801 from making hard contact with the bottom of the upper ball joint 5, which could damage the upper ball joint 5 and affect its use.

[0030] Working principle: During use, the upper ball joint 5 is placed on top of the lower ball joint 6, causing the bottom of the upper ball joint 5 to press against the sealing ring 801. This causes the sealing ring 801 to press against the second spring 803, resulting in a rebound force in the second spring 803. As the upper ball joint 5 continues to move and is installed in place, the sealing ring 801, through the rebound force of the second spring 803, tightly adheres to the bottom of the upper ball joint 5. This seals the gap between the upper ball joint 5 and the lower ball joint 6, preventing dust from entering and affecting the lubrication effect between them during construction. The downward movement of the upper ball joint 5 also drives the fixing ring 70. 1. Moving downwards causes the fixing ring 701 to press against the pin 704, which in turn causes the pin 704 to move downwards and press against the first spring 709. This causes the first spring 709 to generate a rebound force. Subsequently, the upper ball joint 5 is rotated, causing the upper ball joint 5 to drive the fixing ring 701 to rotate. This causes the pin hole 702 to align with the pin 704, allowing the pin 704 to reset due to the rebound of the first spring 709. The pin 704 then extends into the pin hole 702, thereby fixing the upper ball joint 5 with the fixing ring 701. This prevents the upper ball joint 5 from rotating during construction at its top, which would affect the stability and accuracy of the construction.

[0031] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A split-type three-dimensional cross-rotating bridge rotating structure, comprising a first steel frame (3), wherein a PTFE sliding plate (1) is mounted on the top of the first steel frame (3), and a plurality of support legs (2) are slidably connected to the top of the PTFE sliding plate (1), characterized in that, Also includes: The second steel frame (4) has a lower ball joint (6) installed on its top, and an upper ball joint (5) is attached to the top of the lower ball joint (6). The lower ball joint (6) is provided with a limiting device (7) on its outer wall. The limiting device (7) includes two slots (715) and a fixing ring (701). The two slots (715) are fitted with a block (714). The two blocks (714) are connected to a first arc ring (703) and a second arc ring (705) on one side respectively. The top of the first arc ring (703) and the second arc ring (705) are provided with multiple pins (704). The fixing ring (701) is provided with multiple pin holes (702). The upper ball joint (5) is fixed and limited by inserting the pins (704) into the pin holes (702).

2. The split-type three-dimensional intersecting rotating bridge rotation structure according to claim 1, characterized in that, The inner wall of the fixing ring (701) is connected to the outer wall of the upper ball joint (5), the slot (715) is opened on the outer wall of the lower ball joint (6), and the inner walls of the first arc ring (703) and the second arc ring (705) are respectively attached to the outer wall of the lower ball joint (6).

3. The split-type three-dimensional intersecting rotating bridge rotation structure according to claim 1, characterized in that, The first arc ring (703) and the second arc ring (705) are both connected to fixing plates (712), and the two fixing plates (712) on the same side are fixed by fixing bolts (713).

4. The split-type three-dimensional cross-rotating bridge rotation structure according to claim 1, characterized in that, The top of the first arc ring (703) and the second arc ring (705) are provided with multiple movable grooves (707). The inner wall of the movable groove (707) is slidably connected to the outer wall of the pin (704), and one end of the pin (704) is inserted into the corresponding pin hole (702). The bottom of the pin (704) is provided with a fixed groove, and a fixed rod (710) is slidably connected in the fixed groove. The bottom of the fixed rod (710) is connected to the bottom of the inner wall of the movable groove (707), and a first spring (709) is sleeved on the outer wall of the fixed rod (710). The two ends of the first spring (709) are respectively connected to the bottom of the pin (704) and the bottom of the movable groove (707).

5. The split-type three-dimensional intersecting rotating bridge rotation structure according to claim 1, characterized in that, The outer walls of the first arc ring (703) and the second arc ring (705) are both fitted and slidably connected to a push plate (706), and a connecting groove (708) is provided on one side of the inner wall of the movable groove (707), and a connecting block (711) is slidably connected in the connecting groove (708). One side of the connecting block (711) is connected to one side of the push plate (706), and the other side of the connecting block (711) is connected to the outer wall of the pin (704).

6. The split-type three-dimensional intersecting rotating bridge rotation structure according to claim 1, characterized in that, The lower ball joint (6) is provided with a sealing device (8) at its top. The sealing device (8) includes a sealing groove (804) at the top of the lower ball joint (6). A sealing ring (801) is slidably connected in the sealing groove (804). The top of the sealing ring (801) is in contact with the bottom of the upper ball joint (5). A plurality of second springs (803) are connected to the bottom of the sealing ring (801). The bottom of the second springs (803) is connected to the bottom of the sealing groove (804).

7. The split-type three-dimensional intersecting rotating bridge rotation structure according to claim 6, characterized in that, The sealing ring (801) has multiple support grooves at its bottom, and a support rod (802) is slidably connected in the support groove. The bottom of the support rod (802) is connected to the bottom of the sealing groove (804), and the second spring (803) is sleeved on the outside of the support rod (802).

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