Fully-sealed swivel spherical hinge

Abstract

The utility model provides a full-sealed swivel spherical hinge which comprises a spherical hinge support and a plurality of sealing assemblies, a lower spherical hinge is fixedly arranged on the top of the spherical hinge support, an upper spherical hinge is movably matched with the lower spherical hinge, each sealing assembly is arranged on the outer side of the upper spherical hinge and the outer side of the lower spherical hinge and located at the adjacent position of the upper spherical hinge and the lower spherical hinge, and the sealing assemblies are arranged on the lower spherical hinge. Each sealing assembly comprises an upper connecting plate, a lower connecting plate and a sealing coaming, one side of each upper connecting plate is detachably connected with the corresponding upper spherical hinge, one side of each lower connecting plate is detachably connected with the corresponding lower spherical hinge, and the two ends of each sealing coaming are detachably connected with the corresponding upper connecting plate and the corresponding lower connecting plate through connecting pieces correspondingly. The problem that in the prior art, a gap between an upper spherical hinge and a lower spherical hinge is not protected, and the swivel construction risk is increased after accumulated water and silt enter the gap between the upper spherical hinge and the lower spherical hinge is solved.

Description

Technical Field

[0001] This utility model relates to the field of rotating construction technology, and in particular to a fully sealed rotating ball joint. Background Technology

[0002] With the booming development of transportation construction projects in recent years, more and more new bridge projects are crossing existing highways, railway lines and rivers. Given the high safety and minimal impact on traffic of the rotation method, the vast majority of new overpass bridges are currently constructed using the rotation method.

[0003] Currently, common bridge rotation devices mainly consist of sliding tracks, support legs, and rotating ball joints. The rotating ball joint, as the core component of the rotation system, includes an upper and lower ball joint connected by a pin. It is not only a key component bearing the vertical load of the upper part of the rotating structure but also the structure that enables the horizontal and vertical rotation of the system. The magnitude of its internal friction coefficient is crucial to the successful conduct of the rotation weighing test. If the friction is too high, it will result in excessive traction force, posing a risk of failure to rotate horizontally. In existing rotating structures, there are no protective measures between the upper and lower ball joints, and the lower ball joint only protrudes 10mm above the top surface of the lower abutment, making it easy for mortar and water to enter the ball joint. Furthermore, during the rainy season, inadequate protective measures can lead to water accumulation in the foundation pit. This water, mixed with fine sand particles, enters the ball joint, significantly increasing the internal friction coefficient and increasing the risks of weighing and horizontal rotation construction of the rotating bridge. Therefore, improving the waterproofing and sand-proofing performance of the rotating ball joint is an urgent problem to be solved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fully sealed rotating ball joint, which solves the problem that the gap between the upper and lower ball joints lacks protection measures, and the accumulation of cement and sand between them increases the risk of rotation construction.

[0005] According to an embodiment of this utility model, a fully sealed rotating ball joint includes a ball joint bracket and a sealing assembly. A lower ball joint is fixedly provided on the top of the ball joint bracket, and an upper ball joint is movably fitted on the lower ball joint. There are several sealing assemblies, each of which is located on the outside of the upper and lower ball joints and at the adjacent position of the upper and lower ball joints. Each sealing assembly includes an upper connecting plate, a lower connecting plate, and a sealing enclosure plate. One side of the upper connecting plate is detachably connected to the upper ball joint, and one side of the lower connecting plate is detachably connected to the lower ball joint. Both ends of the sealing enclosure plate are detachably connected to the upper connecting plate and the lower connecting plate respectively through connectors.

[0006] Compared with the prior art, this utility model has the following advantages: By setting a sealing component between the upper and lower ball joints, the sealing component seals the gap between the upper and lower ball joints. The detachable connection between the upper connecting plate, the lower connecting plate, and the sealing enclosure facilitates the installation of the sealing component on the upper and lower ball joints. At the same time, it is also convenient to remove multiple parts of the sealing component later, so as not to affect the subsequent rotation operation. By sealing and protecting the gap between the upper and lower ball joints through the sealing component, it effectively prevents foreign objects from entering the sliding surface of the rotating ball joint, ensuring the safety, smoothness and stability of the rotation system. The overall structure is simple and reasonable, and the disassembly is convenient and quick, without taking up rotation time.

[0007] Furthermore, the connector includes: a spring, a concave sealing plate, insert rods slidably passing through both wings of the sealing plate, one end of the spring being fixedly connected to the sealing plate, the other end of the spring being fixedly connected to the outer wall of the insert rod, and insertion holes for inserting the insert rods being provided on both the upper and lower connecting plates.

[0008] Furthermore, the end of the insertion rod is provided with a bevel.

[0009] Furthermore, it also includes a sliding plate, with a groove on the top of the lower ball joint, the sliding plate being embedded in the groove, and the top of the sliding plate abutting against the bottom of the upper ball joint.

[0010] Furthermore, silicone grease is used to fill the space between the upper connecting plate, the lower connecting plate, and the sealing plate.

[0011] Furthermore, receiving grooves are provided on the outer sides of both the lower and upper ball joints.

[0012] Furthermore, both the upper and lower connecting plates have L-shaped cross-sections.

[0013] Furthermore, both the upper and lower connecting plates are multi-segment structures. Attached Figure Description

[0014] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0015] Figure 2 This is an embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle.

[0016] In the above figures: 1. Ball joint bracket; 2. Lower ball joint; 3. Upper ball joint; 4. Sealing assembly; 41. Upper connecting plate; 42. Lower connecting plate; 43. Sealing enclosure plate; 44. Connector; 441. Spring; 442. Insert rod; 443. Inclined surface; 5. Slide plate; 6. Silicone grease; 7. Receiving groove. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1-2 As shown in the figure, this utility model embodiment proposes a fully sealed rotating ball joint, including a ball joint bracket 1 and a sealing assembly 4. A lower ball joint 2 is fixedly provided on the top of the ball joint bracket 1, and an upper ball joint 3 is movably fitted on the lower ball joint 2. There are several sealing assemblies 4, each of which is located outside the upper ball joint 3 and the lower ball joint 2 and at the adjacent position of the upper ball joint 3 and the lower ball joint 2. Each sealing assembly 4 includes: an upper connecting plate 41, a lower connecting plate 42 and a sealing enclosure plate 43. One side of the upper connecting plate 41 is detachably connected to the upper ball joint 3, and one side of the lower connecting plate 42 is detachably connected to the lower ball joint 2. The two ends of the sealing enclosure plate 43 are detachably connected to the upper connecting plate 41 and the lower connecting plate 42 respectively through connectors 44. In this embodiment, the upper ball joint 3 has a convex spherical structure, and the lower ball joint 2 has a concave spherical structure that matches the convex structure of the upper ball joint 3. After the upper ball joint 3 and the lower ball joint 2 are fitted together, the upper connecting plate 41 is bolted to the end of the outer circumference of the upper ball joint 3 near the lower ball joint 2, and the lower connecting plate 42 is bolted to the end of the outer circumference of the lower ball joint 2 near the lower ball joint 2. The optional connecting member 44 is a bolt. The two ends of the sealing plate 43 are connected to the upper connecting plate 41 and the lower connecting plate 42 respectively through the connecting member 44, so that... The sealing plates 43 of the multiple sealing components 4 seal the gap between the upper ball joint 3 and the lower ball joint 2, thereby preventing the accumulation of cement, sand, dust and other debris generated during subsequent construction from entering the gap between the upper ball joint 3 and the lower ball joint 2 and affecting the friction coefficient of the rotating ball joint. By sealing the gap between the upper ball joint 3 and the lower ball joint 2 through the sealing components 4, external debris is prevented from entering between the two, ensuring the safety, smoothness and stability of the rotating system. At the same time, the detachable connection method also makes it easy to quickly disassemble before rotating and weighing, without occupying the rotation time.

[0019] like Figure 1-2As shown, the connecting member 44 further includes: a spring 441; a concave sealing plate 43; insert rods 442 slidably passing through both wings of the sealing plate 43; one end of the spring 441 fixedly connected to the sealing plate 43; and the other end of the spring 441 fixedly connected to the outer wall of the insert rod 442. Insertion holes for inserting the insert rod 442 are provided on both the upper connecting plate 41 and the lower connecting plate 42. Preferably, the end of the insert rod 442 located outside the sealing plate 43 has a handle for pulling the insert rod 442. Specifically, both ends of the sealing plate 43 are bent to form wings, and the sealing plate 43 is concave. When connecting the sealing plate 43 to the upper connecting plate 41 and the lower connecting plate 42, the insert rod 442 is pulled first to prevent the end of the insert rod 442 from extending into the concave opening of the sealing plate 43. Then, the concave opening of the sealing plate 43 faces the upper connecting plate 41 and the lower connecting plate 42. The upper connecting plate 41 and the lower connecting plate 42 are respectively inserted into the concave opening of the sealing plate 43, and the distance between the upper connecting plate 41 and the lower connecting plate 42 is the same as the width of the concave opening of the sealing plate 43. Then, the insertion rod 442 is released, and the insertion rod 442 is inserted into the insertion hole of the upper connecting plate 41 and the lower connecting plate 42 under the push of the spring 441, thereby fixing the sealing plate 43 to the upper connecting plate 41 and the lower connecting plate 42 and sealing the gap between the upper ball joint 3 and the lower ball joint 2.

[0020] like Figure 1-2 As shown, further, the end of the insertion rod 442 is provided with a bevel 443. In this embodiment, the end of the insertion rod 442 that extends into the concave opening of the sealing plate 43 is provided with a bevel 443, and the bevel 443 faces the upper connecting plate 41 or the lower connecting plate 42. Under the push of the spring 441, the end of the insertion rod 442 with the bevel 443 extends into the concave opening of the sealing plate 43. When installing the sealing plate 43, the sealing plate 43 is aligned with the upper connecting plate 41 and the lower connecting plate 42, and the sealing plate 43 is pushed so that the upper connecting plate 41 and the lower connecting plate 42 abut against the bevel 443 of the insertion rod 442, pushing the insertion rod 442 to move until the insertion rod 442 is aligned with the insertion hole. Under the push of the spring 441, the insertion rod 442 is inserted into the insertion hole, without the need for the worker to pull the insertion rod 442 in advance, saving time and steps.

[0021] like Figure 1-2 As shown, furthermore, it also includes a sliding plate 5. A groove is formed at the top of the lower ball joint 2, and the sliding plate 5 is embedded in the groove. The top of the sliding plate 5 abuts against the bottom of the upper ball joint 3. Specifically, the sliding plate 5 is made of polytetrafluoroethylene (PTFE), which has excellent wear resistance, self-lubrication, and chemical stability. This reduces the frictional resistance of the rotating ball joint during rotation, allowing it to rotate flexibly and smoothly. Simultaneously, the sliding plate 5 can withstand a certain amount of pressure, ensuring the stability and durability of the rotating ball joint.

[0022] like Figure 1-2As shown, furthermore, silicone grease 6 is filled between the upper connecting plate 41, the lower connecting plate 42, and the sealing plate 43. The upper connecting plate 41, the lower connecting plate 42, and the sealing plate 43 form a receiving cavity, which is filled with a filling material, namely silicone grease 6. Silicone grease 6 has waterproof sealing and water erosion resistance, and can provide long-lasting lubrication in humid environments. While preventing external dust from entering the gap between the upper ball joint 3 and the lower ball joint 2, it also improves the smooth rotation of the swivel ball joint during rotation.

[0023] like Figure 1-2 As shown, furthermore, both the lower ball joint 2 and the upper ball joint 3 have receiving grooves 7 on their outer sides. The receiving grooves 7 guide the silicone grease 6, allowing it to enter the gap between the upper ball joint 3 and the lower ball joint 2 and be guided to the slide plate 5 to lubricate it, thereby further improving the flexibility and stability of the rotating ball joint.

[0024] like Figure 1-2 As shown, both the upper connecting plate 41 and the lower connecting plate 42 have L-shaped cross sections. The L-shaped upper connecting plate 41 and the lower connecting plate 42 facilitate bolting to the upper ball joint 3 and the lower ball joint 2, and also facilitate connecting them to the sealing enclosure plate 43.

[0025] Furthermore, both the upper connecting plate 41 and the lower connecting plate 42 are multi-segment structures. Specifically, multiple upper connecting plates 41 form an annular structure surrounding the outer wall of the upper ball joint 3, and multiple lower connecting plates 42 form an annular structure surrounding the outer wall of the lower ball joint 2. Through the multi-segment connection, the upper connecting plates 41 and the lower connecting plates 42 can be more easily disassembled and reused, and can be replaced at a lower cost if deformation occurs in a local position.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fully sealed rotating ball joint, characterized in that: Includes a ball joint bracket (1), a lower ball joint (2) is fixedly provided on the top of the ball joint bracket (1), and an upper ball joint (3) is movably fitted on the lower ball joint (2); A sealing assembly (4) is provided. There are several sealing assemblies (4). Each sealing assembly (4) is located outside the upper ball joint (3) and the lower ball joint (2) and at the junction of the upper ball joint (3) and the lower ball joint (2). Each sealing assembly (4) includes an upper connecting plate (41), a lower connecting plate (42), and a sealing enclosure plate (43). One side of the upper connecting plate (41) is detachably connected to the upper ball joint (3), and one side of the lower connecting plate (42) is detachably connected to the lower ball joint (2). Both ends of the sealing enclosure plate (43) are detachably connected to the upper connecting plate (41) and the lower connecting plate (42) respectively via connectors (44).

2. The fully sealed rotating ball joint as described in claim 1, characterized in that, The connector (44) includes: a spring (441), a concave sealing plate (43), and a rod (442) slidably passing through both wings of the sealing plate (43). One end of the spring (441) is fixedly connected to the sealing plate (43), and the other end of the spring (441) is fixedly connected to the outer wall of the rod (442). The upper connecting plate (41) and the lower connecting plate (42) are both provided with insertion holes for the rod (442) to be inserted.

3. The fully sealed rotating ball joint as described in claim 2, characterized in that: The end of the insertion rod (442) is provided with a bevel (443).

4. The fully sealed rotating ball joint as described in claim 1, characterized in that: It also includes a slide plate (5), the top of the lower ball joint (2) has a groove, the slide plate (5) is embedded in the groove, and the top of the slide plate (5) abuts against the bottom of the upper ball joint (3).

5. A fully sealed rotating ball joint as described in claim 4, characterized in that: Silicone grease (6) is filled between the upper connecting plate (41), the lower connecting plate (42), and the sealing plate (43).

6. A fully sealed rotating ball joint as described in claim 5, characterized in that: Both the lower ball joint (2) and the upper ball joint (3) have receiving grooves (7) on their outer sides.

7. A fully sealed rotating ball joint as described in claim 1, characterized in that: Both the upper connecting plate (41) and the lower connecting plate (42) have L-shaped cross sections.

8. A fully sealed rotating ball joint as described in claim 1, characterized in that: Both the upper connecting plate (41) and the lower connecting plate (42) are multi-segment structures.

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