Stable folding floating bridge

Abstract

The utility model discloses a stable type folding floating bridge relates to floating bridge technical field, including the bridge plate, the number of the bridge plate is three, and the one end of bridge plate close to each other is equipped with connecting groove, the inside of connecting groove is all fixedly connected with connecting shaft, the outside of connecting shaft is all through bearing and torque spring and is movably connected with connecting plate, the connecting plate passes through the bearing and torque spring, and the connecting plate passes through the bearing and torque spring. The other side of the connecting plate is movably connected to the outer side of the other connecting bearing close to the connecting plate through a bearing and a torque spring, and the end, away from the connecting plate, of the bridge plate closest to the front is movably connected with a retracting and releasing mechanism. According to the winding and unwinding mechanism, the driving belt is loosened from the surface of the winding and unwinding roller through reverse rotation of the servo motor, the driving belt at the loosened part slides in a guide wheel hub, at the moment, the bridge plate at the foremost end is downwards straightened due to self power, and then the two bridge plates are connected and slide towards the two sides to be straightened under the acting force of the torque spring; the floating bridge can be quickly laid, the mounting steps and difficulty of the floating bridge are reduced, and time is saved.

Description

Technical Field

[0001] This utility model relates to the field of floating bridge technology, specifically a stable folding floating bridge. Background Technology

[0002] Bridges have advantages such as fast erection speed, strong ability to overcome river obstacles, minimal impact from riverbed soil, adaptability to water level changes, and ease of dismantling. However, their bridge deck is close to the water surface, which interrupts navigation and restricts passage after erection. Existing methods for opening bridge gates include: the method of removing the gantry bridge with a belt, the method of removing the telescopic gantry bridge, the method of partial truss disassembly, and the method of removing the lap joint gantry bridge.

[0003] Folding pontoon bridges are generally suitable for short-distance temporary use. However, existing folding pontoon bridges are usually complicated to build, requiring multiple people to operate, which is time-consuming and labor-intensive. In addition, when there is a certain gap between the pontoon bridge and the water surface, buoyancy equipment needs to be installed to ensure the normal use of the pontoon bridge. Utility Model Content

[0004] Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a stable folding floating bridge. The set retraction mechanism facilitates the rapid laying of the floating bridge, reduces the installation steps and difficulties, and saves time. The set buoyancy enhancement mechanism starts the air pump to inflate all the inflatable floats through the diversion pipe and hose, thereby enhancing the buoyancy of the bridge deck and improving the stability of the bridge deck for traffic.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stable folding floating bridge, comprising bridge plates, wherein three bridge plates are provided, and each bridge plate has a connecting groove at one end close to the others. A connecting shaft is fixedly connected inside each connecting groove. A connecting plate is movably connected to the outside of each connecting shaft via bearings and torque springs. The other side of the connecting plate is movably connected to the outside of another nearby connecting bearing via bearings and torque springs. A retraction mechanism is movably connected to the end of the foremost bridge plate furthest from the connecting plate, and a buoyancy enhancement mechanism is fixedly connected to the bottom end of the bridge plate.

[0008] The aforementioned take-up and release mechanism includes a servo motor, take-up and release rollers, a drive shaft, a drive belt, and guide wheels. The take-up and release rollers are respectively fixedly connected to both ends of the drive shaft, and the servo motor is located on the outside of one of the take-up and release rollers. The output end of the servo motor is fixedly connected to the axis of the take-up and release roller, and one end of the drive belt is wound around the outside of the take-up and release roller.

[0009] As described above, five pairs of guide wheels are arranged symmetrically on the left and right sides, and the guide wheels are movably connected to both sides of the bridge plate. The end of the drive belt away from the take-up and take-off rollers is successively close to the hub of the guide wheel, and the drive belt extends and is fixedly connected to the outside of the middle guide wheel after passing through the guide wheels in sequence.

[0010] As mentioned above, the drive belt is fixedly connected to the outer side of the guide wheel, and the connection point where the drive belt folds inward and is tightly attached to the guide wheel is movably connected to the guide rod.

[0011] As described above, the drive shaft is fixedly connected to one end of the bridge plate, and the take-up and release rollers are located on both sides of the bridge plate.

[0012] The aforementioned buoyancy enhancement mechanism includes an inflatable float, a hose, and a diversion tube. The inflatable float is provided in three groups, and each group of inflatable floats is connected to each other through the diversion tube. The two ends of the hose are respectively fixedly connected to the middle position of the inflatable floats that are close to each other, and the inflatable float, the diversion tube, and the hose are interconnected internally.

[0013] As described above, the three sets of inflatable floats are respectively fixedly connected to the bottom of the opposite bridge plate, and the hose is located directly below the connecting plate.

[0014] Beneficial effects:

[0015] Compared with existing technologies, this stable folding floating bridge has the following advantages:

[0016] I. This utility model uses a set take-up and release mechanism to release the drive belt from the surface of the take-up and release roller by rotating the servo motor in the opposite direction. The released part of the drive belt slides in the guide wheel hub. At this time, the frontmost bridge plate is straightened downward due to its own power. The connection between the two bridge plates is also straightened by the torque spring force, which facilitates the rapid laying of the floating bridge, reduces the steps and difficulty of the floating bridge installation, and saves time.

[0017] II. This utility model, through the buoyancy enhancement mechanism, utilizes an external air pump fixedly connected to a diversion pipe. Activating the air pump inflates all the inflatable floats by passing gas through the diversion pipe and hose, thereby enhancing the buoyancy of the bridge deck and improving the stability of the bridge for traffic.

[0018] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2This is a top-view three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the retraction and extension mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of a partial cross-sectional connection structure of the bridge plate of this utility model.

[0023] In the diagram: 1. Bridge plate; 2. Connecting groove; 3. Connecting shaft; 4. Connecting plate; 5. Retracting and extending mechanism; 501. Servo motor; 502. Retracting and extending roller; 503. Drive shaft; 504. Drive belt; 505. Guide wheel; 6. Buoyancy enhancement mechanism; 601. Inflatable float; 602. Hose; 603. Diverter pipe; 7. Guide rod. Detailed Implementation

[0024] 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.

[0025] like Figure 1-4 As shown, this utility model provides a technical solution: a stable folding floating bridge, including a bridge plate 1, which is provided with three bridge plates 1, and each of the bridge plates 1 has a connecting groove 2 at one end close to each other. A connecting shaft 3 is fixedly connected inside the connecting groove 2. A connecting plate 4 is movably connected to the outside of the connecting shaft 3 through a bearing and a torque spring. The other side of the connecting plate 4 is movably connected to the outside of another nearby connecting shaft 3 through a bearing and a torque spring. A retraction mechanism 5 is movably connected to the end of the foremost bridge plate 1 away from the connecting plate 4, and a buoyancy enhancement mechanism 6 is fixedly connected to the bottom end of the bridge plate 1.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the take-up and release mechanism 5 includes a servo motor 501, take-up and release rollers 502, a drive shaft 503, a drive belt 504, and guide wheels 505. The take-up and release rollers 502 are respectively fixedly connected to both ends of the drive shaft 503, and the servo motor 501 is located on the outside of one of the take-up and release rollers 502. The output end of the servo motor 501 is fixedly connected to the axis of the take-up and release roller 502, and one end of the drive belt 504 is wound around the outside of the take-up and release roller 502. Five pairs of guide wheels 505 are symmetrically arranged on the left and right sides, and the guide wheels 505 are movably connected to... On both sides of the bridge plate 1, the end of the drive belt 504 away from the take-up and release rollers 502 is successively attached to the hub of the guide wheel 505, and the drive belt 504 extends and is fixedly connected to the outer side of the middle guide wheel 505 after passing through the guide wheels 505. The drive belt 504 is fixedly connected to the outer side of the guide wheel 505, and the drive belt 504 is movably connected to the connection point where it is folded inward and attached to the guide wheel 505. The drive shaft 503 is fixedly connected to one end of the bridge plate 1, and the take-up and release rollers 502 are located on both sides of the bridge plate 1.

[0027] The servo motor 501 rotates in the opposite direction to loosen the drive belt 504 from the surface of the take-up and release roller 502. The loosened part of the drive belt 504 slides in the hub of the guide wheel 505. At this time, the foremost bridge plate 1 is straightened downward due to its own power. The two bridge plates 1 are connected by the torque spring force and also slide to the sides to straighten. This is conducive to the rapid laying of the floating bridge, reducing the steps and difficulty of the floating bridge installation and saving time.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the buoyancy enhancement mechanism 6 includes an inflatable float 601, a hose 602, and a diversion pipe 603. There are three sets of inflatable floats 601, and each set of inflatable floats 601 is connected to each other through the diversion pipe 603. The two ends of the hose 602 are respectively fixedly connected to the middle position of the inflatable floats 601 that are close to each other. The inflatable floats 601, the diversion pipe 603, and the hose 602 are interconnected. The three sets of inflatable floats 601 are respectively fixedly connected to the bottom of the opposite bridge plate 1, and the hose 602 is located directly below the connecting plate 4.

[0029] By connecting an external air pump to the diversion pipe 603, the air pump is started to inflate all the inflatable floats 601 through the diversion pipe 603 and the hose 602, thereby enhancing the buoyancy of the bridge deck and improving the stability of the bridge deck for traffic.

[0030] Working principle: When in use, the servo motor 501 is started to rotate in reverse, causing the drive belt 504 to be released from the surface of the take-up and release roller 502. The released part of the drive belt 504 slides in the hub of the guide wheel 505. At this time, the foremost bridge plate 1 is straightened downward due to its own power. Then, the connection between the two bridge plates 1 is also straightened by the torque spring force. When the bridge plate 1 moves to the water surface level, the servo motor 501 is stopped and the external air pump is fixedly connected to the diversion pipe 603. The air pump is started so that the air passes through the air pipe and hose 602 to inflate all the inflatable floats 601, which helps to enhance the buoyancy of the bridge deck and improve the stability of the bridge deck. After the equipment is used, the servo motor 501 is controlled to rotate in reverse, so that the drive belt 504 is wound and tightened around the take-up and release roller 502. Then, the other end of the drive belt 504 pulls the bridge plate 1 to fold and retract.

[0031] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A stable folding floating bridge, comprising bridge deck (1), characterized in that: The bridge plate (1) is provided with three pieces, and each of the bridge plates (1) has a connecting groove (2) at one end close to the other. The connecting groove (2) is fixedly connected to a connecting shaft (3). The outer side of the connecting shaft (3) is movably connected to a connecting plate (4) through a bearing and a torque spring. The other side of the connecting plate (4) is movably connected to the outer side of another connecting shaft (3) nearby through a bearing and a torque spring. The end of the bridge plate (1) furthest from the connecting plate (4) is movably connected to a retracting mechanism (5), and the bottom end of the bridge plate (1) is fixedly connected to a buoyancy-enhancing mechanism (6).

2. The stable folding floating bridge according to claim 1, characterized in that: The take-up and release mechanism (5) includes a servo motor (501), take-up and release rollers (502), a drive shaft (503), a drive belt (504), and a guide wheel (505). The take-up and release rollers (502) are respectively fixedly connected to both ends of the drive shaft (503), and the servo motor (501) is located on the outside of one of the take-up and release rollers (502). The output end of the servo motor (501) is fixedly connected to the axis of the take-up and release roller (502), and one end of the drive belt (504) is wrapped around the outside of the take-up and release roller (502).

3. A stable folding floating bridge according to claim 2, characterized in that: The guide wheels (505) are arranged in five pairs symmetrically on the left and right, and the guide wheels (505) are movably connected to both sides of the bridge plate (1). The end of the drive belt (504) away from the take-up and release roller (502) is successively close to the hub of the guide wheel (505), and the drive belt (504) extends and is fixedly connected to the outside of the middle guide wheel (505) after passing through the guide wheels (505) in sequence.

4. A stable folding floating bridge according to claim 3, characterized in that: The drive belt (504) is fixedly connected to the outer side of the guide wheel (505) and the drive belt (504) is movably connected to the connection point where it is folded inward and close to the guide wheel (505).

5. A stable folding floating bridge according to claim 2, characterized in that: The drive shaft (503) is fixedly connected to one end of the bridge plate (1), and the take-up and take-down rollers (502) are located on both sides of the bridge plate (1).

6. A stable folding floating bridge according to claim 1, characterized in that: The buoyancy enhancement mechanism (6) includes an inflatable float (601), a hose (602), and a diversion pipe (603). The inflatable float (601) is provided in three sets, and each set of inflatable floats (601) is connected to each other through the diversion pipe (603). The two ends of the hose (602) are respectively fixedly connected to the middle position of the inflatable floats (601) that are close to each other, and the inflatable float (601), the diversion pipe (603), and the hose (602) are interconnected internally.

7. A stable folding floating bridge according to claim 6, characterized in that: The three sets of inflatable floats (601) are fixedly connected to the bottom of the opposite bridge plate (1), and the hose (602) is located directly below the connecting plate (4).

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