Adjustable framework for bridge swivel

Abstract

The utility model discloses an adjustable framework for a bridge swivel. The adjustable framework comprises four supporting columns which are distributed in a rectangular mode. A connecting assembly is arranged among the four supporting columns, the top and the bottom of each supporting column are each fixedly connected with a pair of transverse rods, the same connecting sleeve is slidably connected between every two adjacent transverse rods in different pairs, and a fixing plate is fixedly connected between the upper connecting sleeve and the lower connecting sleeve; the connecting assembly further comprises a center shell, the side edge of the center shell is connected with a plurality of connecting rods in a sliding mode, and the connecting rods are fixedly connected with the inner side of the fixing plate. Wherein the interior of the center shell is rotationally connected with a rotating disc, the surface of the rotating disc is fixedly connected with a spiral rail, the spiral rail is slidably connected with four sliding blocks, and one sliding block is fixedly connected with one connecting rod; and the cross rod and the connecting sleeve slide relative to each other at the same time by rotating the rotating disc, so that the size of the whole framework can be quickly adjusted during installation.

Description

Technical Field

[0001] This utility model relates to the field of bridge rotation technology, specifically an adjustable frame for bridge rotation. Background Technology

[0002] Bridge rotation construction refers to a construction method in which a bridge is shaped and rotated to a position other than the design axis, and then rotated into place. This method can transform work above obstacles into work on the shore or near the ground. Depending on the direction of rotation of the bridge structure, it can be divided into vertical rotation construction method, horizontal rotation construction method, and a combination of horizontal and vertical rotation methods. The rotation system of a rotating bridge consists of a lower turntable, an upper turntable, ball joints, slides, and a traction system. The rotation system requires a positioning frame as the cornerstone of the entire rotation system. The installation and positioning of the positioning frame has a significant impact on subsequent rotation construction. Different specifications of bridge rotation require different specifications of rotation systems, which necessitates the customization of different rotation systems according to different construction dimensions and the re-fabrication of positioning frames of different specifications, which is very time-consuming.

[0003] Publication No. CN217810565U discloses a positioning frame for bridge rotation, including a frame body in the shape of a rectangular frame. Several sets of snap-fit ​​grooves are provided around the perimeter of the frame body, with the length of each set of grooves decreasing from the inside to the outside. A telescopic structure is snapped into each snap-fit ​​groove. The telescopic structure includes a first rod, a second rod, and a connecting screw. The first rod and the second rod are arranged opposite each other, and threaded holes are provided on the inner sides of the first rod and the second rod, respectively. The connecting screw is threaded through the threaded holes on the first rod and the second rod. Positioning posts are also provided around the lower perimeter of the frame body. This device has the advantages of saving on-site construction time and being mass-producible. However, this patent still has the following problems in actual use:

[0004] The aforementioned device requires adjustment of the telescopic structure separately, which in turn uses screws for adjustment. This means that in actual operation, four screws need to be rotated separately, and the rotation angles must be kept the same to ensure the symmetry of the overall structure. Ultimately, this makes the operation too cumbersome and inconvenient to use.

[0005] An adjustable frame for bridge rotation is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide an adjustable frame for bridge rotation, so as to solve the problem that the above-mentioned device in the background art requires adjustment of the telescopic structure separately, and the telescopic structure is adjusted by screws. This results in the need to rotate four screws separately in actual operation, and the rotation angle needs to be the same to ensure the symmetry of the overall structure. Ultimately, this makes the operation too troublesome and inconvenient to use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable frame for bridge rotation, comprising four rectangularly distributed support columns;

[0008] A connecting assembly is provided between the four support columns. The connecting assembly includes several crossbars. A pair of crossbars is fixedly connected to the top and bottom of each support column. The two crossbars in the same pair are distributed at a 90-degree angle. The same connecting sleeve is slidably connected between two adjacent crossbars in different pairs. A fixing plate is fixedly connected between the upper and lower connecting sleeves.

[0009] The connecting assembly further includes a central shell, and a plurality of connecting rods are slidably connected to the side of the central shell, and the connecting rods are fixedly connected to the inner side of the fixing plate.

[0010] The central shell is rotatably connected to a rotating disk, and a spiral track is fixedly connected to the surface of the rotating disk. Four sliders are slidably connected to the spiral track, and each slider is fixedly connected to a connecting rod.

[0011] Preferably, the outer side of the central shell has four side grooves, which are evenly distributed, and the connecting rod is slidably connected to the side grooves.

[0012] Preferably, a central shaft is fixedly connected to the center of the rotating disk, and a knob is fixedly connected to the top of the central shaft through the central shell.

[0013] Preferably, a reinforcing rod is fixedly connected between the two crossbars on the same side.

[0014] Preferably, the bottom of the support column is provided with an adjustment component, the adjustment component includes a threaded column, the threaded column is fixed to the bottom end of the support column, and a hollow sleeve is sleeved on the outside of the threaded column.

[0015] Preferably, a sliding rod is slidably connected to one side of the hollow sleeve, a semi-helical sleeve is rotatably connected to one end of the sliding rod, a rotating block is fixedly connected to the other end of the sliding rod, an extension rod is fixedly connected to the outside of the rotating block, a curved insert is fixedly connected to the end of the extension rod away from the rotating block, a plug sleeve is fixedly connected to the outside of the hollow sleeve, and the curved insert is plugged into the plug sleeve.

[0016] Preferably, a clearance groove is provided on one side of the hollow sleeve, and the clearance groove is slidably connected to the semi-helical sleeve.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this adjustable frame for bridge rotation allows all crossbars and connecting sleeves to slide relative to each other simultaneously by rotating a knob with a tool, thereby enabling the size of the entire frame to be quickly adjusted during installation, facilitating its use. The specific details are as follows:

[0018] 1. By turning the knob with the tool, the central shaft drives the rotating disk, which in turn causes the spiral track to drive the slider to slide along the direction of the connecting rod. This causes the four connecting rods to move outward synchronously, ultimately pushing all the crossbars to slide relative to the connecting sleeves. This allows the size of the entire frame to be quickly adjusted during installation, making it easy to use.

[0019] 2. By rotating the rotating block, the extension rod drives the curved insert to be pulled out of the insert sleeve. At this time, the sliding rod can be pulled to move, thereby moving the semi-spiral sleeve and allowing the height of the hollow sleeve to be quickly adjusted. The level of the entire device can be initially positioned. Then, the semi-spiral sleeve is reset and the threaded connection with the threaded column is restored. Then, the semi-spiral sleeve is rotated, and the position of the hollow sleeve is finely adjusted. Finally, the level of the entire frame can be quickly changed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0021] Figure 2 This is a top sectional view of the structure of this utility model;

[0022] Figure 3 This is a top view of the central shell structure.

[0023] Figure 4 for Figure 1 Enlarged structural diagram at point A;

[0024] Figure 5 This is a schematic diagram of the installation structure of the rotating block and the extension rod.

[0025] In the diagram: 1. Support column; 2. Connecting assembly; 201. Crossbar; 202. Connecting sleeve; 203. Reinforcing rod; 204. Fixing plate; 205. Central shell; 206. Side groove; 207. Connecting rod; 208. Rotary disk; 209. Helical track; 210. Slider; 211. Central shaft; 212. Knob; 3. Adjusting assembly; 301. Threaded column; 302. Hollow sleeve; 303. Sliding rod; 304. Semi-helical arc sleeve; 305. Rotary block; 306. Extension rod; 307. Curved insert; 308. Insert sleeve. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 - Figure 5 The present invention provides a technical solution: an adjustable frame for bridge rotation, comprising four rectangularly distributed support columns 1;

[0028] A connecting component 2 is provided between the four support columns 1. The connecting component 2 includes several crossbars 201. A pair of crossbars 201 are fixedly connected to the top and bottom of the support column 1. The two crossbars 201 in the same pair are distributed at a 90-degree angle. The same connecting sleeve 202 is slidably connected between two adjacent crossbars 201 in different pairs. A fixing plate 204 is fixedly connected between the upper and lower connecting sleeves 202.

[0029] The connecting assembly 2 also includes a central shell 205, on which several connecting rods 207 are slidably connected. The connecting rods 207 are fixedly connected to the inner side of the fixing plate 204. The central shell 205 is located at the center of the connecting line of all the support columns 1. There are four connecting rods 207.

[0030] The central shell 205 is rotatably connected to a rotating disk 208. A spiral track 209 is fixedly connected to the surface of the rotating disk 208. Four sliders 210 are slidably connected to the spiral track 209. One slider 210 is fixedly connected to a connecting rod 207. The four sliders 210 are evenly distributed.

[0031] The outer side of the central shell 205 has four side grooves 206, which are evenly distributed. The connecting rod 207 is slidably connected to the side grooves 206.

[0032] A central shaft 211 is fixedly connected to the middle of the rotating disk 208. The top of the central shaft 211 passes through the central shell 205 and is fixedly connected to a knob 212. The knob 212 is convenient for operation with tools such as wrenches.

[0033] A reinforcing rod 203 is fixedly connected between the two horizontal bars 201 on the same side; the reinforcing rod 203 increases the overall stability of the device.

[0034] An adjustment component 3 is provided at the bottom of the support column 1. The adjustment component 3 includes a threaded column 301, which is fixed to the bottom end of the support column 1. A hollow sleeve 302 is fitted around the threaded column 301. The hollow sleeve 302 fits against the outer side of the threaded column 301.

[0035] A sliding rod 303 is slidably connected to one side of the hollow sleeve 302. A semi-spiral sleeve 304 is rotatably connected to one end of the sliding rod 303. A rotating block 305 is fixedly connected to the other end of the sliding rod 303. An extension rod 306 is fixedly connected to the outside of the rotating block 305. A curved insert 307 is fixedly connected to the end of the extension rod 306 away from the rotating block 305. A sleeve 308 is fixedly connected to the outside of the hollow sleeve 302. The curved insert 307 is inserted into the sleeve 308. The semi-spiral sleeve 304 is threadedly connected to the threaded post 301. A friction block is fixedly connected to the end of the curved insert 307.

[0036] A clearance groove is provided on one side of the hollow sleeve 302, and the clearance groove is slidably connected to the semi-screw arc sleeve 304; after the semi-screw arc sleeve 304 moves into the clearance groove, it will prevent it from being threadedly connected to the threaded post 301.

[0037] Working principle: Before using this type of adjustable frame for bridge rotation, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5 As shown, during the installation of the frame, the device is lifted off the ground by a crane using hooks and cables. Then, the knob 212 is turned by a tool to make the central shaft 211 drive the rotating disk 208, which in turn causes the spiral track 209 to drive the slider 210 to slide along the direction of the connecting rod 207. This causes the connecting rod 207 to move outward synchronously, and finally causes relative sliding between the crossbar 201 and the connecting sleeve 202. This allows the size of the entire frame to be quickly adjusted during installation, making it easy to use.

[0038] By rotating the rotating block 305, the extension rod 306 drives the curved insert 307 to be pulled out from the insert sleeve 308. At this time, the sliding rod 303 can be pulled to move, thereby driving the semi-screw arc sleeve 304 to move, and allowing the height of the hollow sleeve 302 to be quickly adjusted. Moreover, when fine adjustment is needed, the semi-screw arc sleeve 304 is reset and threadedly connected to the threaded post 301, and then the semi-screw arc sleeve 304 is rotated, ultimately allowing the level of the entire frame to be quickly changed.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable framework for bridge rotation, comprising four rectangularly distributed support columns (1); characterized in that Further comprising: A connecting assembly (2) is arranged between the four support columns (1), the connecting assembly (2) comprises a plurality of crossbars (201), the top and bottom of the support column (1) are fixedly connected with a pair of crossbars (201), the two crossbars (201) of the same pair are distributed at ninety degrees, and the same connecting sleeve (202) is slidingly connected between the two adjacent crossbars (201) of different pairs, and the upper and lower connecting sleeves (202) are fixedly connected with a fixed plate (204); Wherein, the connecting assembly (2) comprises a center shell (205), a plurality of connecting rods (207) are slidingly connected to the side of the center shell (205), and one end of the connecting rod (207) away from the center shell (205) is fixedly connected with the inner side of the fixed plate (204); Wherein, the inside of the center shell (205) is rotatably connected with a rotating disc (208), the surface of the rotating disc (208) is fixedly connected with a spiral track (209), four sliding blocks (210) are slidingly connected on the spiral track (209), and one sliding block (210) is fixedly connected with one connecting rod (207).

2. The adjustable framework for bridge rotation as claimed in claim 1, wherein: Four side grooves (206) are formed on the outer side of the center shell (205), the four side grooves (206) are evenly distributed, and the connecting rod (207) is slidingly connected with the side groove (206).

3. The adjustable framework for bridge rotation according to claim 1, wherein: The middle part of the rotating disc (208) is fixedly connected with a center shaft (211), the top of the center shaft (211) penetrates through the center shell (205) and is fixedly connected with a knob (212).

4. The adjustable framework for bridge rotation according to claim 1, wherein: The reinforcing rods (203) are fixedly connected between the two same side crossbars (201) of the upper and lower crossbars (201).

5. The adjustable framework for bridge rotation according to claim 1, wherein: The bottom of the support column (1) is provided with an adjusting assembly (3), the adjusting assembly (3) comprises a threaded column (301), the threaded column (301) is fixed to the bottom end of the support column (1), and the outer part of the threaded column (301) is sleeved with a hollow sleeve (302).

6. The adjustable framework for bridge rotation as claimed in claim 5, wherein: One end of the sliding rod (303) is rotatably connected with a half-spiral sleeve (304), the other end of the sliding rod (303) is fixedly connected with a rotating block (305), the outer side of the rotating block (305) is fixedly connected with an extension rod (306), one end of the extension rod (306) away from the rotating block (305) is fixedly connected with a curved insertion strip (307), the outer side of the hollow sleeve (302) is fixedly connected with an insertion sleeve (308), and the curved insertion strip (307) is inserted with the insertion sleeve (308).

7. The adjustable framework for bridge rotation as claimed in claim 5, wherein: A position avoiding groove is formed in the inner side of the hollow sleeve (302), and the half-spiral sleeve (304) is slidingly connected with the position avoiding groove.

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