Over-rotation prevention device for swivel bridge

Abstract

The utility model relates to the technical field of anti-over-rotation devices, and discloses a swivel bridge anti-over-rotation device which comprises a main body assembly. The main body assembly comprises a mounting seat, a first rod body and a second rod body; the second rod body is arranged on the first rod body; the upper turntable is arranged above the rod body II; a limiting assembly is arranged on the second rod body. The limiting assembly comprises an electric push rod which is fixedly connected into the first rod body and fixedly connected with the second rod body. When the rotating bridge is used, after the rotating bridge body is rotated and folded, the electric push rod is started, the telescopic rod and the clamping block are sequentially embedded into the first groove body and the second groove body, locking of the angle of the upper rotating disc is achieved, locking is canceled on the contrary, and the rotating bridge has the advantages that over-rotation of the rotating bridge is prevented, the automation degree is high, and locking of the upper rotating disc is conveniently canceled; the problems that an existing anti-over-rotation device of the swivel bridge is low in automation degree, and a locking mechanism is inconvenient to take out from a clamping groove are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of over-rotation prevention devices, in particular to an over-rotation prevention device for a swivel bridge. Background Art

[0002] A rotating bridge is a bridge constructed using the rotation method. 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 and a combination of horizontal and vertical rotation methods. Among them, the horizontal rotation method is the most widely used. In order to prevent the rotating bridge from over-rotating, a rotating bridge anti-over-rotation device is generally used.

[0003] At present, the over-rotation prevention device of the rotating bridge on the market usually sets a jack on the top surface of the lower pedestal of the rotating system. One end of multiple steel strands passes through the jack and is wound around the upper turntable. The jack is started to pull the other end of the steel strand to pull and rotate the upper turntable relative to the lower turntable, and the rotation speed of the upper turntable is adjusted by the jack's inching control to improve the closing accuracy of the rotating bridge. However, during the construction process, there is no device to prevent the upper turntable from over-rotating due to the inertia force of rotation during the rotation process, and the operator needs to concentrate highly during the rotation process and needs to have sufficient experience, which makes the operation difficult. There is still a risk of over-rotation of the rotating bridge. In the related technology, a locking mechanism is set. The locking mechanism has a tendency to move toward the upper turntable, and a slot with a bottom opening is opened on the upper turntable. When the upper turntable rotates to the point where the slot corresponds to the locking mechanism, the locking mechanism can pass upward through the bottom opening and be limitedly inserted into the slot to limit the rotation of the upper turntable, thereby preventing the over-rotation caused by the inertia force of the upper turntable. Although the purpose of preventing the rotating bridge from over-rotating is achieved, its degree of automation is low, and it is not convenient to remove the locking mechanism from the slot in actual use. It has certain limitations and is inconvenient to use. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a swivel bridge anti-over-rotation device, which has the advantages of preventing the swivel bridge from over-rotating, having a high degree of automation and convenient cancellation of locking the upper turntable, solving the problems of the existing swivel bridge anti-over-rotation device having a low degree of automation and inconvenience in removing the locking mechanism from the slot.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a swivel bridge anti-over-rotation device, including a main body component; the main body component includes: a mounting seat, on which a rod body 1 is arranged; a rod body 2, which is arranged on the rod body 1; an upper turntable, which is arranged above the rod body 2; a limit assembly is arranged on the rod body 2; the limit assembly includes: an electric push rod, which is fixedly connected to the rod body 1 and fixedly connected to the rod body 2; a clamping block, which is arranged on the rod body 2; a telescopic rod, which is arranged on the rod body 2; a spring, which is arranged in the telescopic rod; a clamping slot, which is opened on the upper turntable; a slot body 1, which is opened on the clamping slot; and a slot body 2, which is opened on the clamping slot.

[0008] In some embodiments, the block, the telescopic rod, the first slot, and the second slot center are all equal to the center of the upper turntable.

[0009] In some embodiments, the telescopic rod includes: a rod body three, which is arranged on the rod body two; a slider, which is slidably connected to the rod body three; a rod body four, which is fixedly connected to the slider, and one end of the rod body four is inserted into the slot.

[0010] In some embodiments, the cross-sections of the telescopic rod and the block are both circular.

[0011] In some embodiments, a disassembly assembly is provided on the rod body 2; the disassembly assembly includes: a cylinder, which is provided on the rod body 2; and a thread, which is opened on the rod body 3, and the rod body 3 is threadedly connected to the cylinder through the thread.

[0012] In some embodiments, the disassembly assembly further includes: a groove body three, which is opened on the rod body two, and the cylinder body is installed in the groove body three.

[0013] In some embodiments, the disassembly components are provided in multiple groups.

[0014] In some embodiments, the depth of the second groove body is greater than the depth of the first groove body.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a swivel bridge anti-over-rotation device, which has the following beneficial effects:

[0017] The utility model discloses to prevent the over-rotation of the rotating bridge, and the advantages of high automation and convenient cancellation of locking of the upper turntable are solved. The problems of low automation and inconvenience in removing the locking mechanism from the card slot are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection method of part of the structure of the limit assembly in the utility model;

[0020] Figure 3 It is a schematic diagram of the structure before and after locking in the utility model.

[0021] In the figure:

[0022] 1. Main assembly; 11. Mounting seat; 12. Rod body 1; 13. Rod body 2; 14. Upper turntable;

[0023] 2. Limiting assembly; 21. Electric push rod; 22. Block; 23. Telescopic rod; 231. Rod body three; 232. Sliding block; 233. Rod body four; 24. Spring; 25. Slot; 26. Slot body one; 27. Slot body two;

[0024] 3. Disassembly assembly; 31. Cylinder; 32. Thread; 33. Tank III. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] A jack is arranged on the top surface of the lower pedestal of the rotating system. One end of multiple steel strands passes through the jack and is wound around the upper turntable. The jack is started to pull the other end of the steel strand to pull and rotate the upper turntable relative to the lower turntable. The rotation speed of the upper turntable is adjusted by the inching control of the jack to improve the closing accuracy of the rotating bridge.

[0030] In the related art, a locking mechanism is provided, which has a tendency to move toward the upper turntable, and a slot with a bottom opening is provided on the upper turntable. When the upper turntable rotates to the point where the slot corresponds to the locking mechanism, the locking mechanism can pass upward through the bottom opening and be limitedly inserted into the slot to limit the rotation of the upper turntable, thereby preventing the upper turntable from overrotating due to the inertia force of rotation. Although the purpose of preventing the rotating bridge from overrotating is achieved, its degree of automation is low, and in actual use, the torsional force will directly act on the elastic driving member, reducing its service life, and it is inconvenient to remove the locking mechanism from the slot. It has certain limitations and is inconvenient to use.

[0031] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a rotating bridge anti-over-rotation device. When it is needed, it is only necessary to turn on the electric push rod 21, so that the telescopic rod 23 is embedded in the card slot 25 and automatically extends. Then, after contacting the card slot 25, the force generated by the rotation of the upper turntable is offset. Finally, the telescopic rod 23 and the card block 22 are respectively inserted into the slot body 1 26 and the slot body 2 27 to complete the locking. It is more convenient and quick, and the convenience of the device is improved.

[0032] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0033] Combination Figure 1-Figure 3The embodiment of the present application provides a rotating bridge anti-over-rotation device, including a main body component 1; the main body component 1 includes: a mounting seat 11, on which a rod body 12 is arranged; a rod body 2 13, which is arranged on the rod body 12; an upper turntable 14, which is arranged above the rod body 2 13; a limit assembly 2 is arranged on the rod body 2 13; the limit assembly 2 includes: an electric push rod 21, which is fixedly connected to the rod body 1 12 and fixedly connected to the rod body 2 13; a clamping block 22, which is arranged on the rod body 2 13; a telescopic rod 23, which is arranged on the rod body 2 13; a spring 24, which is arranged in the telescopic rod 23; a clamping slot 25, which is opened on the upper turntable 14; a slot body 1 26, which is opened on the clamping slot 25; a slot body 2 27, which is opened on the clamping slot 25.

[0034] When in use, a pre-embedded plate is selected and fixed on the mounting base 11 by bolt connection. When the mounting base 11 is stably placed, the rotating bridge body is rotated and closed. First, the constraints of the rotating bridge body before rotation are released. At this time, the posture of the rotating bridge body after the constraints are released is uncertain, and there may be deviations in the angle and position in the direction, which makes the angle of rotation of the rotating bridge body have errors. Therefore, when the rotating bridge body is rotated to a distance where its axis is close to overlapping with the axis of the fixed bridge, it is necessary to accurately measure the distance to obtain a first distance value; then the first distance value is reduced by a certain proportion to obtain a second distance value, and the second distance value is the displacement of the slot 25 after the rotation of the rotating bridge body is completed; then continue to measure the distance between the slot 25 and the telescopic rod 23 at this time, and this distance is recorded as the third distance value; when the third distance value When the third distance value is exactly equal to the second distance value, there is no need to move the mounting base 11. When there is a deviation between the third distance value and the second distance value, the position of the mounting base 11 is adjusted. When locking, the upper turntable 14 rotates, the electric push rod 21 is turned on, and the rod body 2 13 slides out from the rod body 1 12 until one end of the telescopic rod 23 is inserted into the card slot 25. The elastic force of the spring 24 extends the telescopic rod 23 and inserts it into the card slot 25 until the telescopic rod 23 contacts the inclined surface in the card slot 25, pushes the telescopic rod 23 to retract, and squeezes the spring 24 until the telescopic rod 23 is aligned with the slot body 1 26. The elastic force of the spring 24 is used to embed the telescopic rod 23 into the slot body 1 26, and then the electric push rod 21 is continued to be driven to embed the block 22 into the slot body 27 at the same time, so as to achieve the locking of the angle of the upper turntable 14, otherwise the locking is cancelled.

[0035] In some embodiments, the center of the block 22 , the telescopic rod 23 , the slot body 1 26 and the slot body 2 27 are all equal to the center of the upper turntable 14 , so that the telescopic rod 23 and the block 22 can be embedded in the slot 25 and the slot body 2 27 at the same time.

[0036] In some embodiments, the telescopic rod 23 includes: a rod body three 231, which is arranged on the rod body two 13; a slider 232, which is slidably connected to the rod body three 231; a rod body four 233, which is fixedly connected to the slider 232, and one end of the rod body four 233 is inserted into the slot 25. When the telescopic rod 23 is working, the rod body four 233 pushes the slider 232 to slide in the rod body three 231 and squeezes the spring 24.

[0037] In some embodiments, the cross-sections of the telescopic rod 23 and the block 22 are both circular, which facilitates the telescopic rod 23 and the block 22 to be inserted into the slot 25 and the second slot body 27 .

[0038] In some embodiments, a disassembly assembly 3 is provided on the rod body 13; the disassembly assembly 3 includes: a cylinder 31, which is provided on the rod body 13; a thread 32, which is opened on the rod body 231, and the rod body 231 is threadedly connected with the cylinder 31 through the thread 32.

[0039] When the telescopic rod 23 is to be disassembled, the rod body 3 231 is directly rotated to rotate the rod body 331 on the cylinder body 31 until the rod body 3 231 is separated from the cylinder body 31, and then the disassembly is realized, otherwise the installation is realized.

[0040] In some embodiments, the disassembly assembly 3 further includes: a groove body three 33 , which is opened on the rod body two 13 , and the cylinder body 31 is installed in the groove body three 33 to prevent the cylinder body 31 from affecting the normal use of the telescopic rod 23 .

[0041] In some embodiments, the disassembly components 3 are provided in multiple groups, and the multiple groups of disassembly components 3 respectively realize the installation and disassembly of the telescopic rod 23 and the block 22.

[0042] In some embodiments, the depth of the second groove body 27 is greater than the depth of the first groove body 26 , so as to prevent the telescopic rod 23 from being inserted into the second groove body 27 .

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0044] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotating bridge anti-over-rotation device, comprising a main body component (1); the main body component (1) comprises: A mounting seat (11) on which a rod body 1 (12) is disposed; Rod body 2 (13), disposed on the rod body 1 (12); An upper rotating disk (14) is arranged above the second rod body (13); The invention is characterized in that: a limit assembly (2) is arranged on the second rod body (13); the limit assembly (2) comprises: An electric push rod (21) is fixedly connected to the rod body 1 (12) and is fixedly connected to the rod body 2 (13); A clamping block (22) is arranged on the second rod body (13); A telescopic rod (23) is arranged on the second rod body (13); A spring (24) is arranged in the telescopic rod (23); A card slot (25) is provided on the upper turntable (14); A slot body (26) is provided on the card slot (25); The second slot body (27) is arranged on the clamping slot (25).

2. The over-rotation prevention device for a rotating bridge according to claim 1, characterized in that: The distances from the centers of the clamping block (22), the telescopic rod (23), the first trough body (26) and the second trough body (27) to the center of the upper turntable (14) are all equal.

3. The over-rotation prevention device for a rotating bridge according to claim 1, characterized in that: The telescopic rod (23) comprises: Rod body three (231), arranged on the rod body two (13); A slider (232) is slidably connected to the rod body (231); The rod body four (233) is fixedly connected to the slider (232), and one end of the rod body four (233) is inserted into the slot (25).

4. The over-rotation prevention device for a rotating bridge according to claim 3 is characterized in that: The telescopic rod (23) and the clamping block (22) both have circular cross sections.

5. The over-rotation prevention device for a rotating bridge according to claim 4, characterized in that: The rod body 2 (13) is provided with a disassembly assembly (3); the disassembly assembly (3) comprises: A cylinder (31) is arranged on the second rod (13); A thread (32) is formed on the rod body three (231), and the rod body three (231) is threadably connected to the cylinder body (31) via the thread (32).

6. The over-rotation prevention device for a rotating bridge according to claim 5, characterized in that: The disassembly assembly (3) further comprises: The groove body three (33) is opened on the rod body two (13), and the cylinder body (31) is installed in the groove body three (33).

7. The over-rotation prevention device for a rotating bridge according to claim 6, characterized in that: The disassembly components (3) are provided in multiple groups.

8. The over-rotation prevention device for a rotating bridge according to claim 1, characterized in that: The depth of the second groove body (27) is greater than the depth of the first groove body (26).

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