Bridge swivel with multiple revolute pairs

Abstract

The utility model provides a multi revolute pair bridge swivel, including upper plate, locating pin and anchor subassembly, the lower plate is provided below the upper plate, the top of upper plate is provided with first open slot through, the top of lower plate is provided with second open slot, the upper end and lower end of locating pin are located in first open slot and second open slot respectively, anchor subassembly is provided with anchor subassembly, the anchor subassembly is provided with anchor subassembly, the anchor subassembly is provided with anchor subassembly. A middle plate is arranged between the upper plate and the lower plate, and a first sliding pair is arranged on the upper end face of the middle plate. According to the utility model, the middle plate can be divided into a one-layer or multi-layer combined form, and the middle plate is in spherical contact with the upper plate and the lower plate through the first sliding pair and the second sliding pair, so that the situation that a certain rotating pair is blocked and cannot rotate in the bridge rotating process can be avoided, and the situation that the rotating body rotates independently can be realized through the multi-layer rotating pair; and the smooth proceeding of the bridge swivel process can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge fitting production, in particular to a multi-rotating pair bridge swivel body. Background Technique

[0002] Bridge swivel is an advanced bridge construction method, mainly used to cross obstacles such as deep valleys, rivers, railways and highways. This method prefabricates the bridge structure on the ground, and then uses the rotating pair device to rotate the structure to the predetermined position to realize the closure of the bridge;

[0003] In the process of using the existing bridge swivel body, due to the use of a single rotating pair, when the rotating pair gets stuck and cannot rotate during the bridge swivel process, the swivel body cannot rotate, resulting in the inability to carry out the bridge swivel. Therefore, the use effect of this bridge swivel body is poor. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a multi-rotating pair bridge swivel body.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a multi-rotating pair bridge swivel body, including an upper plate, a positioning pin and an anchoring component. A lower plate is arranged below the upper plate. A first slot is opened through the top of the upper plate, and a second slot is opened on the top of the lower plate. The upper and lower ends of the positioning pin are respectively located inside the first slot and the second slot. An intermediate plate is arranged between the upper plate and the lower plate. A first sliding pair is arranged on the upper end surface of the intermediate plate, and the first sliding pair is in contact with the bottom of the upper plate. The lower end surface of the intermediate plate is a spherical surface, and the upper end surface of the lower plate is a concave spherical surface. A second sliding pair is arranged on the upper end surface of the lower plate. A first fixing slot is opened through the top of the second sliding pair. A second fixing slot is opened through the top of the first sliding pair. The first fixing slot is directly below the second fixing slot. A rotating slot is opened through the top of the intermediate plate. The positioning pin passes through the first fixing slot, the rotating slot and the second fixing slot. Multiple anchoring components are symmetrically arranged on the upper plate and the lower plate respectively.

[0006] Preferably, a stainless steel dust cover is sleeved on the outer surface of the upper plate. The stainless steel dust cover is fixedly connected to the outer surfaces of the upper plate and the lower plate, and the intermediate plate is located inside the stainless steel dust cover.

[0007] Preferably, the inner wall of the first slot is in spherical contact with the top end of the positioning pin.

[0008] Preferably, multiple anchoring components are distributed in a circular array.

[0009] Preferably, a gap is left between the positioning pin and the inner walls of the first fixing slot, the second fixing slot and the rotating slot.

[0010] The utility model has the following beneficial effects:

[0011] 1. For this multi-rotating pair bridge swivel, the inside of the swivel bearing is connected by pin shafts through positioning pins. The swivel bearing that connects the upper plate, the middle plate, and the lower plate in series as a whole is positioned by the positioning pins. The positioning pins can also play the functions of positioning and limiting, and the structure is simple and compact.

[0012] 2. For this multi-rotating pair bridge swivel, the middle plate can be in the form of one or more layers of combination. The middle plate makes spherical contact with the upper plate and the lower plate by using the first sliding pair and the second sliding pair, which can avoid the situation that a certain rotating pair is stuck and unable to rotate during the bridge swivel process. The multi-layer rotating pairs can all realize the situation of independent rotation of the swivel, which can ensure the smooth progress of the bridge swivel process.

[0013] 3. For this multi-rotating pair bridge swivel, a gap is left between the positioning pin and the rotating groove on the middle plate to ensure the rotating function, which can avoid the situation of being stuck and unable to rotate during rotation and leveling in the swivel construction. Description of the Drawings

[0014] Figure 1 is the schematic diagram of the overall structure of the utility model;

[0015] Figure 2 is the front elevation sectional view of the utility model.

[0016] Among them, 1. Upper plate; 2. Positioning pin; 3. Middle plate; 4. Lower plate; 5. First sliding pair; 6. Second sliding pair; 7. Anchoring assembly; 8. Stainless steel dust cover; 9. First slot; 10. Rotating groove; 11. Second slot; 12. First fixing groove; 13. Second fixing groove. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model. Embodiment

[0018] As Figure 1-2As shown in the figure, an embodiment of the utility model provides a multi-rotating pair bridge swivel, which includes an upper plate 1, a positioning pin 2, and an anchoring assembly 7. A lower plate 4 is arranged below the upper plate 1. A first slot 9 is formed through the top of the upper plate 1, and a second slot 11 is formed in the top of the lower plate 4. The upper and lower ends of the positioning pin 2 are respectively located inside the first slot 9 and the second slot 11. An intermediate plate 3 is arranged between the upper plate 1 and the lower plate 4. A first sliding pair 5 is arranged on the upper end surface of the intermediate plate 3, and the first sliding pair 5 is in contact with the bottom of the upper plate 1. The lower end surface of the intermediate plate 3 is spherical, and the upper end surface of the lower plate 4 is a concave spherical surface. A second sliding pair 6 is arranged on the upper end surface of the lower plate 4. A first fixing slot 12 is formed through the top of the second sliding pair 6, and a second fixing slot 13 is formed through the top of the first sliding pair 5. The first fixing slot 12 is directly below the second fixing slot 13. A rotating slot 10 is formed through the top of the intermediate plate 3. The positioning pin 2 passes through the first fixing slot 12, the rotating slot 10, and the second fixing slot 13. Multiple anchoring assemblies 7 are symmetrically arranged on the upper plate 1 and the lower plate 4 respectively.

[0019] A stainless steel dust cover 8 is sleeved on the outer surface of the upper plate 1. The stainless steel dust cover 8 is fixedly connected to the outer surfaces of the upper plate 1 and the lower plate 4. The intermediate plate 3 is located inside the stainless steel dust cover 8. The stainless steel dust cover 8 fixed to the outer surfaces of the upper plate 1 and the lower plate 4 can prevent dust from entering the first sliding pair 5 and the second sliding pair 6 through the gap between the upper plate 1 and the lower plate 4, avoiding the influence of dust on the rotation of the first sliding pair 5 and the second sliding pair 6; the inner wall of the first slot 9 is in spherical contact with the top end of the positioning pin 2, making it more convenient for the upper plate 1 to rotate; multiple anchoring assemblies 7 are distributed in a circular array, so that the upper plate 1 and the lower plate 4 can be stably fixed to the bridge through the anchoring assemblies 7 respectively; there are gaps between the positioning pin 2 and the inner walls of the first fixing slot 12, the second fixing slot 13, and the rotating slot 10, ensuring the rotation function of the upper plate 1 and avoiding the situation of jamming and unable to rotate during the rotation and leveling in the swivel construction.

[0020] Working principle: When using the multi-rotating pair bridge swivel, the entire bridge swivel is fixed through the anchoring assembly 7 on the lower plate 4, and the anchoring assembly 7 on the upper plate 1 is fixed to the bridge to be rotated. Rotating the upper plate 1 can rotate the bridge. Since the intermediate plate 3 is in spherical contact with the upper plate 1 through the first sliding pair 5, and the intermediate plate 3 is in spherical contact with the lower plate 4 through the second sliding pair 6, the first sliding pair 5 and the second sliding pair 6 can play a sliding role in the rotation of the upper plate 1, avoiding the situation that a certain rotating pair jams and cannot rotate during the bridge swivel process. Multiple layers of rotating pairs can all realize the separate rotation of the swivel, ensuring the smooth progress of the bridge swivel process. The bridge swivel is internally connected in a pin shaft manner through the positioning pin 2, connecting the upper plate 1, the intermediate plate 3, and the lower plate 4 into an integrated swivel support. The overall structure is positioned by the positioning pin 2, and the positioning pin 2 can also play the functions of positioning and limiting. The structure is simple and compact.

[0021] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-rotation bridge swivel, comprising an upper plate (1), a positioning pin (2) and an anchor assembly (7), characterized in that: A lower plate (4) is arranged below the upper plate (1); a first slot (9) is formed through the top of the upper plate (1); a second slot (11) is formed on the top of the lower plate (4); upper and lower ends of the positioning pin (2) are respectively located inside the first slot (9) and the second slot (11); an intermediate plate (3) is arranged between the upper plate (1) and the lower plate (4); a first sliding pair (5) is arranged on the upper end surface of the intermediate plate (3); the first sliding pair (5) is in contact with the bottom of the upper plate (1); the lower end surface of the intermediate plate (3) is a spherical surface; and the upper end surface of the lower plate (4) is a concave surface. A spherical surface, the upper end surface of the lower plate (4) is provided with a second sliding pair (6), the top of the second sliding pair (6) is penetrated by a first fixing groove (12), the top of the first sliding pair (5) is penetrated by a second fixing groove (13), the first fixing groove (12) is located directly below the second fixing groove (13), the top of the middle plate (3) is penetrated by a rotation groove (10), the positioning pin (2) passes through the first fixing groove (12), the rotation groove (10), and the second fixing groove (13), and a plurality of the anchoring components (7) are symmetrically arranged on the upper plate (1) and the lower plate (4), respectively.

2. A multi-rotation bridge swivel according to claim 1, characterized in that: The outer surface of the upper plate (1) is sleeved with a stainless steel dust cover (8), the stainless steel dust cover (8) is fixedly connected to the outer surfaces of the upper plate (1) and the lower plate (4), and the middle plate (3) is located inside the stainless steel dust cover (8).

3. The multi-rotation pair bridge swivel according to claim 1, characterized in that: The inner wall of the first slot (9) and the top end of the positioning pin (2) are in spherical contact.

4. The multi-rotation bridge swivel according to claim 1, characterized in that: The plurality of anchoring assemblies (7) are distributed in a circular array.

5. The multi-rotation pair bridge swivel according to claim 1, characterized in that: Gaps are left between the positioning pin (2) and the inner walls of the first fixing groove (12), the second fixing groove (13) and the rotating groove (10).

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