Trestle anti-falling device and temporary navigation trestle structure with trestle anti-falling device
By installing a trench anti-fall device in a temporary navigation trench and using limit beams and driving devices to prevent the bridge deck from falling, the problem of insufficient safety of the existing temporary navigation trench structure is solved, efficient anti-fall protection is achieved, and the risk of accidents is reduced.
Patent Information
- Application Number
- CN202421376077.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing temporary navigation trest structure lacks an effective anti-fall structure during the lifting process, and there is a risk of falling from the bridge deck at high altitude, resulting in potential accidents and losses.
A trest anti-fall device is designed, including a rotating end bracket, a non-turning end bracket and an anti-fall pad beam. The lowest position of the movable trest segment is limited by the limit beam, and an anti-fall device is installed on the upper side of the limit beam. The driving device is used to rotate the anti-fall pad beam to prevent falling. Combined with the thrust bearing and PVC pipe to optimize the rotation effect, a double-piece I-shaped steel structure is used to improve strength.
Effectively prevent or reduce fall accidents of trest bridge decks, improve the safety of temporary navigation trest bridges, simple structural design and low cost, convenient installation and significant results.
Smart Images
Figure CN223202178U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of temporary navigation trestle structures, in particular to a trestle anti-falling device and a temporary navigation trestle structure with the device. Background Art
[0002] During the construction of bridge projects, river navigation is often impacted. To address this, temporary structures, including temporary trestles, have been designed to ensure traffic and navigation during bridge construction. The primary design principle for temporary trestles is to construct a simple bridge to provide temporary road traffic. A raised, elevating trestles are designed to correspond to the river's waterway. When needed, the deck can be raised to allow navigation, and then lowered to resume road traffic. The challenge is to effectively coordinate the temporary traffic and navigation needs of bridge projects and ensure their construction. Existing temporary trestles are mostly designed to simply control the deck's elevation. Their structural design lacks safety considerations. For example, existing trestles typically lack anti-fall features. In practice, during the raising or lowering of the trestles, unexpected events (such as the loss or breakage of steel strands or an unexpected power outage) can cause the deck to fall, resulting in personal or property damage. Therefore, it is necessary to study and design anti-fall devices and structures for temporary navigation piers to avoid or minimize the occurrence and harm of such accidents. Summary of the Invention
[0003] The present invention aims to solve the above problems and provides a trestle anti-fall device. The technical solution of the present invention is:
[0004] A pier anti-fall device comprises a rotating end bracket, a non-rotating end bracket and an anti-fall pad beam; the rotating end bracket is fixedly mounted on a first lifting steel pipe pile, the non-rotating end bracket is fixedly mounted on a second lifting steel pipe pile, and the installation elevations of the rotating end bracket and the non-rotating end bracket are adapted to each other; the rotating shaft end of the anti-fall pad beam is rotatably mounted on the rotating end bracket, comprising a driving device for driving the anti-fall pad beam to rotate so that the non-rotating shaft end of the anti-fall pad beam and the non-rotating end bracket move toward each other.
[0005] As a further illustration of the present invention, the anti-fall pad beam adopts a double-jointed I-steel structure.
[0006] Furthermore, the rotating end bracket and the non-rotating end bracket respectively include a corbel bracket and a limit bracket.
[0007] Furthermore, a thrust bearing is provided between the anti-fall pad beam and the limiting bracket of the rotating end bracket.
[0008] Furthermore, the rotating shaft of the anti-falling cushion beam is covered with a PVC tube.
[0009] Furthermore, a support plate is provided between the anti-fall pad beam and the limit bracket of the non-rotating end bracket, and the support plate is a steel plate or a wooden plate.
[0010] On the other hand, the utility model also provides a temporary navigation trestle structure, including the trestle anti-fall device as described above, the temporary navigation trestle structure includes a lifting frame, a winch and a movable trestle section; the lifting frame includes a first lifting steel pipe pile, a second lifting steel pipe pile, a limiting beam and a winch pad beam; the winch is fixedly installed on the top of the first lifting steel pipe pile and the second lifting steel pipe pile through the winch pad beam, and is connected to the lifting pad beam of the movable trestle section through a steel rope to lift or lower the movable trestle section; the limiting beam connects the first lifting steel pipe pile and the second lifting steel pipe pile and is used to limit the lowest position of the movable trestle section, and the trestle anti-fall device is installed on the first lifting steel pipe pile and the second lifting steel pipe pile on the upper side of the limiting beam.
[0011] Furthermore, the lifting frame also includes a longitudinal limiting structure for limiting the relative movement of the movable trestle section in the horizontal direction.
[0012] Furthermore, the longitudinal limiting structure includes a longitudinal limiting channel steel, and the longitudinal limiting channel steel is arranged perpendicular to the limiting cross beam.
[0013] Furthermore, the winch pad beam and the lifting pad beam adopt a double-jointed I-beam structure.
[0014] Beneficial effects of the utility model:
[0015] The utility model discloses a trestle anti-falling device, which can be applied to the existing lifting type temporary navigation trestle structure, and limits the lowest position of the movable trestle section by the limiting crossbeam. The trestle anti-falling device is installed on the upper side of the limiting crossbeam, which can form an effective anti-falling protection for the temporary navigation trestle, avoid or reduce the occurrence and harm of such accidents as much as possible, and effectively improve the safety of the temporary navigation trestle. The structural design is simple and reasonable, which is conducive to installation and construction, with low cost and good effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural diagram of the shaft end of the trestle anti-fall device of the utility model;
[0017] Figure 2 This is a structural diagram of the non-rotating shaft end of the trestle anti-fall device of the utility model;
[0018] Figure 3 This is a schematic diagram of the trestle lifting working condition of the trestle anti-fall device of the utility model;
[0019] Figure 4 This is a schematic diagram of the trestle falling working condition of the trestle anti-fall device of the utility model;
[0020] Figure 5 This is the plan layout of the temporary navigation trestle of the utility model;
[0021] Figure 6 The vertical structure layout of the temporary navigation trestle lifting frame of this utility model Figure 1 ;
[0022] Figure 7 The vertical structure layout of the temporary navigation trestle lifting frame of this utility model Figure 2 .
[0023] Figure numerals: rotating end bracket 1, non-rotating end bracket 2, anti-fall pad beam 3, rotating shaft 301, first lifting steel pipe pile 4, second lifting steel pipe pile 5, limiting beam 6, movable trestle section 7, thrust bearing 8, support plate 9, winch 10, winch pad beam 11, steel rope 12, lifting pad beam 13, longitudinal limiting channel steel 14. DETAILED DESCRIPTION
[0024] Example:
[0025] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0027] As attached Figure 1-4As shown, a pier anti-falling device of this embodiment includes a rotating end bracket 1, a non-rotating end bracket 2 and an anti-falling pad beam 3; the rotating end bracket 1 is fixedly mounted on a first lifting steel pipe pile 4, and the non-rotating end bracket 2 is fixedly mounted on a second lifting steel pipe pile 5, and the installation elevation of the rotating end bracket 1 is adapted to that of the non-rotating end bracket 2; the rotating shaft end of the anti-falling pad beam 3 is rotatably mounted on the rotating end bracket 1, and includes a driving device for driving the anti-falling pad beam 3 to rotate so that the non-rotating shaft end of the anti-falling pad beam 3 and the non-rotating end bracket 2 move toward each other. The utility model pier anti-falling device can be applied to the existing lifting temporary navigation pier structure, and the lowest position of the movable pier section 7 is limited by the limiting crossbeam 6. The pier anti-falling device is installed on the upper side of the limiting crossbeam 6, which can form an effective anti-falling protection for the temporary navigation pier, avoid or minimize the occurrence and harm of such accidents, and effectively improve the safety of the temporary navigation pier; the structural design is simple and reasonable, which is conducive to installation and construction, low cost, and good effect.
[0028] As a preferred implementation, in this embodiment, the anti-fall pad beam 3 adopts a double-jointed I-steel structure to improve the structural strength, which is beneficial to the implementation of the structure and ensures that its anti-fall function can be exerted.
[0029] For specific feasibility, see the attached Figure 1 and attached Figure 2 As shown, the rotating end bracket 1 and the non-rotating end bracket 2 of this embodiment respectively include a corbel bracket and a limit bracket. The corbel bracket is installed and fixed on the first lifting steel pipe pile 4 or the second lifting steel pipe pile 5 to provide a support point for the limit bracket and the anti-fall pad beam 3, and the anti-fall pad beam 3 is installed on the limit bracket.
[0030] As a preferred embodiment, as shown in the attached Figure 1 As shown, in this embodiment, a thrust bearing 8 is provided between the anti-fall pad beam 3 and the limiting bracket of the rotating end bracket 1 to optimize the relative rotation effect between the anti-fall pad beam 3 and its corresponding limiting bracket, reduce wear, and improve the actual application effect of the pier anti-fall device.
[0031] As a preferred embodiment, as shown in the attached Figure 1 As shown, in this embodiment, the rotating shaft 301 of the anti-falling pad beam 3 is covered with a PVC tube, which increases the buffering and vibration reduction effect between the rotating shaft 301 of the anti-falling pad beam 3 and the limiting bracket, further improving the actual application effect of the pier anti-falling device.
[0032] In this embodiment, see the attached Figure 2As shown, a support plate 9 is provided between the anti-fall pad beam 3 and the limiting bracket of the non-rotating end bracket 2. The support plate 9 is a steel plate or a wooden board. Specifically, the inlet and outlet sides of the support plate 9 can be set to have a guide angle structure to better realize the introduction and positioning of the anti-fall pad beam 3.
[0033] As mentioned above, the trestle anti-falling device of this embodiment can be applied to the lifting temporary navigation trestle structure. Figure 5-7 The embodiment shown is a temporary navigation trestle, and the lifting bridge deck part of the temporary navigation trestle mainly includes a lifting frame, a winch 10 and a movable trestle section 7; the lifting frame includes a first lifting steel pipe pile 4, a second lifting steel pipe pile 5, a limiting beam 6 and a winch pad beam 11; the winch 10 is fixedly installed on the top of the first lifting steel pipe pile 4 and the second lifting steel pipe pile 5 through the winch pad beam 11, and is connected to the lifting pad beam 13 of the movable trestle section 7 through a steel rope 12 to lift or lower the movable trestle section 7; the limiting beam 6 connects the first lifting steel pipe pile 4 and the second lifting steel pipe pile 5 and is used to limit the lowest position of the movable trestle section 7, and the trestle anti-fall device is installed on the first lifting steel pipe pile 4 and the second lifting steel pipe pile 5 on the upper side of the limiting beam 6.
[0034] Under normal conditions, the movable trestle section 7 is at its lowest position, that is, flush with the other fixed trestle sections of the temporary navigation trestle. At this time, the temporary navigation trestle is used as a traffic bridge for vehicles and pedestrians to cross the river. When a ship needs to pass through the temporary navigation trestle, the corresponding movable trestle section 7 on the waterway can be lifted upward by controlling the winch 10 at the top of the lifting frame to form a navigation hole for the ship to pass through the temporary navigation trestle. After the ship passes through, the winch 10 at the top of the lifting frame can be controlled to lower the movable trestle section 7 to restore road traffic. During the lifting and lowering operation of the movable trestle section 7 and the navigation process of the ship, as described above, the trestle anti-falling device set on the first lifting steel pipe pile 4 and the second lifting steel pipe pile 5 can be controlled to perform an anti-falling action to avoid or minimize the occurrence and harm of falling accidents, so as to achieve anti-falling protection for the temporary navigation trestle.
[0035] As a preferred embodiment, as shown in the attached Figure 6 As shown, in this embodiment, the lifting frame further includes a longitudinal limiting structure for limiting the horizontal relative movement of the movable trestle section 7. Specifically, the longitudinal limiting structure includes a longitudinal limiting channel steel 14, which is arranged perpendicular to the limiting cross beam 6. During the lifting and lowering process of the movable trestle section 7 of this embodiment, the longitudinal limiting channel steel 14 limits the movement of the lifting pad beam 13, effectively avoiding shaking and improving the smoothness of the lifting and lowering movement of the movable trestle section 7.
[0036] In this embodiment, the winch pad beam 11 and the lifting pad beam 13 adopt a double-jointed I-beam structure to improve the structural strength, which is beneficial to the implementation of the structure and ensures that the anti-fall function can be exerted.
[0037] The above description is only for the preferred embodiment of the present invention, which should not be construed as limiting the claims. The present invention is not limited to the above embodiment, and its specific structure is allowed to be varied. In short, all variations made within the scope of protection of the independent claims of the present invention are also within the scope of protection of the present invention.
Claims
1. A trestle anti-fall device, characterized by: It includes a rotating end bracket, a non-rotating end bracket and an anti-fall pad beam; the rotating end bracket is fixedly installed on the first lifting steel pipe pile, the non-rotating end bracket is fixedly installed on the second lifting steel pipe pile, and the installation elevations of the rotating end bracket and the non-rotating end bracket are adapted to each other; the rotating shaft end of the anti-fall pad beam can be rotatably installed on the rotating end bracket, including a driving device that drives the anti-fall pad beam to rotate so that the non-rotating shaft end of the anti-fall pad beam and the non-rotating end bracket move toward each other.
2. The trestle anti-falling device according to claim 1, characterized in that: The anti-fall pad beam adopts a double-jointed I-steel structure.
3. The trestle anti-falling device according to claim 1, characterized in that: The rotating end bracket and the non-rotating end bracket respectively include a corbel bracket and a limiting bracket.
4. The trestle anti-falling device according to claim 3, characterized in that: A thrust bearing is provided between the anti-falling pad beam and the limiting bracket of the rotating end bracket.
5. The trestle anti-falling device according to claim 4, characterized in that: The rotating shaft of the anti-falling cushion beam is covered with a PVC tube.
6. The trestle anti-falling device according to claim 3, characterized in that: A support plate is provided between the anti-fall pad beam and the limiting bracket of the non-rotating end bracket, and the support plate is a steel plate or a wooden plate.
7. A temporary navigation trestle structure, characterized by: The pier anti-falling device comprises the device described in any one of claims 1 to 6, wherein the temporary navigation pier structure includes a lifting frame, a winch and a movable pier section; the lifting frame includes a first lifting steel pipe pile, a second lifting steel pipe pile, a limiting beam and a winch pad beam; the winch is fixedly installed on the top of the first lifting steel pipe pile and the second lifting steel pipe pile through the winch pad beam, and is connected to the lifting pad beam of the movable pier section by a steel rope for lifting or lowering the movable pier section; the limiting beam connects the first lifting steel pipe pile and the second lifting steel pipe pile and is used to limit the lowest position of the movable pier section, and the pier anti-falling device is installed on the first lifting steel pipe pile and the second lifting steel pipe pile on the upper side of the limiting beam.
8. The temporary navigation trestle structure according to claim 7, characterized in that: The lifting frame also includes a longitudinal limiting structure for limiting the relative movement of the movable trestle section in the horizontal direction.
9. The temporary navigation trestle structure according to claim 8, characterized in that: The longitudinal limiting structure includes a longitudinal limiting channel steel, and the longitudinal limiting channel steel is arranged perpendicular to the limiting cross beam.
10. The temporary navigation trestle structure according to claim 7, characterized in that: The winch pad beam and the lifting pad beam adopt a double-jointed I-beam structure.