Combined floating bridge capable of adaptively adjusting height

Abstract

The invention discloses a combined floating bridge capable of adaptively adjusting the height, which comprises a plurality of buoys arranged on the water surface, and the front and back adjacent buoys are detachably connected; the buoyancy adjusting assembly is arranged between the left and right adjacent buoys and used for adjusting the height of the buoys relative to the water surface according to the change of the water level; the connecting assemblies are arranged between the left and right adjacent buoys and are used for connecting and fixing the adjacent buoys; the floating plates are horizontally arranged above the floating barrels, and the floating plates are detachably connected with the connecting columns. The invention discloses a combined floating bridge capable of adaptively adjusting the height, the height can be adaptively adjusted according to the rising and falling of the water level, and meanwhile, the floating bridge adopts a modular splicing structure, can be quickly assembled and disassembled, and is also convenient to carry. When the floating bridge ascends and descends, the buoyancy adjusting assembly is adopted, the height can be rapidly adjusted according to the change of the water level, and the up-down fluctuation amplitude and frequency of the floating bridge can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of pontoon bridges, and particularly relates to a combined pontoon bridge with adjustable height adaptively. Background Art

[0002] A pontoon bridge is a special bridge structure that floats on the water surface. A pontoon bridge is generally composed of pontoons or floating boxes, and uses the buoyancy provided by the pontoons or floating boxes as the supporting force to form a passage for people and vehicles to pass through.

[0003] During the use of a pontoon bridge, it is generally composed of multiple modules assembled and spliced together. The conventional connection method between pontoon bridges generally uses ropes or hooks. This connection method will cause shaking between multiple modules, and during the process of water level change, the pontoon bridges will fluctuate up and down with the water surface, affecting the passage of the pontoon bridge.

[0004] For example, in the prior art, for the technical solution with the application number "2019101115363" and the patent name "Water Pontoon Bridge and Erection Method", this technical solution adopts a hollow structure composed of ceramsite boards, and a water storage and lifting device is arranged in the middle of the ceramsite boards. By adjusting the water storage volume in the water storage and lifting device, the overall height of the floating board unit is adjusted, so as to realize the height lifting of the pontoon bridge. However, although this solution can adjust the height of the pontoon bridge by the water storage volume of the water storage and lifting device, first of all, the height adjustment range of the water storage and lifting device is limited by the space of the ceramsite board, and the adjustment range is not large enough. At the same time, when the water level changes frequently, the floating board unit will repeatedly change its height with the water level, resulting in a large fluctuation state of the overall pontoon bridge, thus affecting the smoothness of passage; and the connection method between the pontoon bridge units in this solution is to use hook splicing, and this connection method will cause adjacent pontoon bridge units to collide with each other during the up and down fluctuation process, thus exacerbating the instability of the pontoon bridge. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to solve the above problems in the prior art, and provide a combined pontoon bridge with adjustable height adaptively, which can slowly adjust the lifting height of the pontoon bridge through a multi-level water level adjustment method according to the gravity exerted on the pontoon bridge during passage and the height change of the water level, ensure a certain stability of the pontoon bridge during passage, and adopt a rigid connection method between pontoon bridge units to avoid relative collision between adjacent pontoon bridge units, ensure that the pontoon bridge units can maintain relative consistency of movement, ensure the reliability of the pontoon bridge, and ensure the safety during passage.

[0006] The present invention adopts the following technical solutions to achieve:

[0007] A combined pontoon bridge with adjustable height adaptively, comprising,

[0008] A plurality of pontoons are arranged on the water surface, and the adjacent pontoons before and after are detachably connected;

[0009] A buoyancy adjustment assembly is arranged between the left and right adjacent pontoons and is used to adjust the height of the pontoon relative to the water surface according to the change of the water level. The buoyancy adjustment assembly includes a frame, a multi-level water level adjustment member, a conversion member and a balance member. The multi-level water level adjustment member is arranged at the lower end inside the frame, the conversion member is arranged at the upper end inside the frame, the conversion member can be opened or closed with the water level adjustment member under the action of water pressure, the balance member is arranged below the water level adjustment member, the balance member is slidably connected with the side wall of the frame up and down, and the balance member can move up and down relative to the multi-level water level adjustment member in the vertical plane;

[0010] A connection assembly is arranged between the left and right adjacent pontoons and is used to connect and fix the adjacent pontoons. The connection assembly includes a base, a connection column and a connecting piece. The base is arranged on one side of the pontoon away from the buoyancy adjustment assembly, and the bases of the adjacent pontoons are detachably connected. The connection column is arranged on the base, and the connecting piece is detachably connected with the connection column;

[0011] A plurality of floating plates are horizontally arranged above the pontoons, and the floating plates are detachably connected with the connection columns.

[0012] To optimize the above technical solution, the specific measures taken also include:

[0013] Furthermore, the frame is a hollow frame structure with an open lower end. The side wall of the frame away from the pontoon is provided with a plurality of first-level circulation ports, second-level circulation ports, third-level circulation ports and fourth-level circulation ports with gradually increasing sizes from bottom to top. The first-level circulation ports, second-level circulation ports, third-level circulation ports and fourth-level circulation ports are all located on the side wall of the frame corresponding to the multi-level water level adjustment member. A pressure relief hole is arranged between the second-level circulation port and the third-level circulation port. The side wall of the frame close to the pontoon is detachably connected with the pontoon.

[0014] Furthermore, the multi-level water level adjusting member includes a first-level cavity, a second-level cavity, and a third-level cavity that are distributed from bottom to top. The first-level cavity, the second-level cavity, and the third-level cavity are separated from each other. There are gaps between the first-level cavity, the second-level cavity, and the third-level cavity and the inner sidewall of the frame. The internal spaces of the first-level cavity, the second-level cavity, and the third-level cavity increase in sequence. A plurality of through holes are provided on the sidewalls of the first-level cavity, the second-level cavity, and the third-level cavity. The internal bottom plates of the first-level cavity, the second-level cavity, and the third-level cavity are higher in the middle and lower around. The first-level circulation port, the second-level circulation port, and the third-level circulation port are respectively located on the sidewalls of the first-level cavity, the second-level cavity, and the third-level cavity that are far from the through holes. The heights of the first-level circulation port, the second-level circulation port, and the third-level circulation port are lower than the heights of the through holes on the sidewalls of the corresponding cavities. The height of the pressure relief hole is higher than the height of the through hole on the sidewall of the second-level cavity. The conversion member is arranged above the first-level cavity. The top plate of the first-level cavity is connected to the inner sidewall of the frame. The fourth-level circulation port is arranged on the frame above the first-level cavity. A plurality of through grooves are opened on both sides of the top plate of the first-level cavity. The bottom of the conversion member is movably arranged in the through grooves. The conversion member can open or close the through grooves under the action of water pressure.

[0015] Furthermore, the conversion member includes a first compression member, a connecting rod, a second compression member, and an airbag. A part of the first compression member is vertically arranged in the through groove. The first compression member can make a reciprocating motion in the vertical plane. The second compression member is horizontally arranged on the upper surface inside the frame. The second compression member can make a reciprocating motion in the horizontal plane. The connecting rod is hinged to the first compression member and the second compression member. The airbag is arranged on the upper surface outside the frame. The airbag is communicated with the second compression member.

[0016] Furthermore, the first compression member includes a moving block, a telescopic rod, and a compression spring. The moving block is slidably arranged in the through groove. The telescopic rod is vertically arranged at the upper end of the moving block. The end of the telescopic rod far from the moving block is connected to the inner wall of the frame. The compression spring is sleeved on the telescopic rod. The connecting rod is hinged to the moving block.

[0017] Further, the second compression member includes a sliding block, a push rod, and a compression chamber. A sliding chamber is provided at the top of the inner side wall of the frame. Vent holes are formed in the side wall of the sliding chamber. The sliding block is horizontally slidably arranged in the sliding chamber. The connecting rod is hinged to the sliding block. One end of the push rod is connected to the sliding block, and the other end of the push rod is connected to the piston. The piston is slidably arranged in the compression chamber. A guide rod parallel to the push rod is arranged outside the push rod. One end of the guide rod is connected to the sliding block, and the other end of the guide rod abuts against the side wall of the compression chamber. A guide spring is arranged on the guide rod. An air inlet and an air outlet are provided on the compression chamber. The air outlet is connected to the airbag through a pipeline. A one-way air outlet valve is arranged on the pipeline. A one-way air inlet valve is provided at the air inlet. The air inlet is communicated with the vent hole.

[0018] Further, an L-shaped support block is arranged between the floating plate and the connecting column. The horizontal end of the L-shaped support block is sleeved on the connecting column, and the vertical end of the L-shaped support block is connected to the floating plate. A positioning block is arranged at the top end of the connecting column.

[0019] Further, the connecting member includes a connecting block and a locking block. The connecting block is sleeved on the adjacent connecting columns of the adjacent bases. The locking block is rotatably arranged at the upper end of the connecting block. A clamping groove is arranged on one side of the locking block close to the connecting column. The side of the positioning block is clamped in the clamping groove.

[0020] Further, a locking member is arranged on the connecting block. The locking member includes a locking block and a locking spring. A locking groove is arranged on the connecting block. The locking spring is vertically arranged in the locking groove. The lower end of the locking block is connected to the locking spring. The upper end of the locking block protrudes above the upper surface of the U-shaped block under the action of the locking spring. The locking block has a triangular structure. The locking block can be compressed into the locking groove by the locking block.

[0021] Further, the balancing member includes a balancing plate, an adjusting plate, and a sliding block. The balancing plate is arranged below the first-stage cavity. A gap is arranged between the balancing plate and the first-stage cavity. The adjusting plates are arranged on both sides of the balancing plate. A balancing cavity is arranged on the side wall of the frame. The sliding block is slidably arranged up and down in the balancing cavity. The adjusting plate is connected to the sliding block.

[0022] Advantages of the present invention:

[0023] Compared with the prior art, the present invention discloses a combined floating bridge capable of self-adaptive height adjustment, which can perform self-adaptive height adjustment according to the rise and fall of the water level. At the same time, the floating bridge adopts a modular splicing structure, which can be quickly assembled and disassembled and is also convenient to carry.

[0024] When the pontoon bridge is adjusted in height, a multi-level water level adjusting member, a conversion member and a balancing member are combined with each other, which can quickly adjust the height according to the change of water level and reduce the up and down fluctuation range of the pontoon bridge.

[0025] The connection method between the pontoon bridges adopts a rigid connection with connecting members, which can ensure the consistency of movement between multiple modules and avoid mutual collision between the modules. At the same time, the pontoon bridges adopt a splicing method that combines horizontal and vertical directions during connection, effectively improving the connection stability. At the same time, the connection methods are all detachable connections, which are convenient for installation and disassembly and improve the assembly efficiency of the pontoon bridge. Brief Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of a combined pontoon bridge with adjustable height according to the present invention.

[0027] Figure 2 It is the present invention Figure 1 Partial structure schematic diagram.

[0028] Figure 3 It is the present invention Figure 2 Schematic diagram of the connection structure of the pontoons in the present invention.

[0029] Figure 4 It is the present invention Figure 2 Schematic diagram of the connection structure between the pontoon and the buoyancy adjustment component in the present invention.

[0030] Figure 5 It is the present invention Figure 4 Cross-sectional view of the buoyancy adjustment component in the present invention.

[0031] Figure 6 It is the present invention Figure 5 Partial structure schematic diagram of the conversion member 23 in the present invention.

[0032] Figure 7 It is the present invention Figure 5 Top view of partial structure in the present invention.

[0033] Figure 8 It is the present invention Figure 2 Schematic diagram of the connection structure between the connection component and the left and right adjacent bases in the present invention.

[0034] Figure 9 It is the present invention Figure 2 Schematic diagram of the connection structure between the connection component and the front and rear adjacent bases in the present invention.

[0035] Figure 10 It is the present invention Figure 9 Schematic diagram of the connection member in the present invention.

[0036] The reference numerals are: buoy 10, clamping block 11, clamping groove 12, buoyancy adjustment assembly 20, frame 21, balance chamber 211, primary circulation port 212, secondary circulation port 213, tertiary circulation port 214, quaternary circulation port 215, pressure relief hole 216, multi-level water level adjustment member 22, primary cavity 221, secondary cavity 222, tertiary cavity 223, through hole 224, conversion member 23, first compression member 231, moving block 2311, telescopic rod 2312, compression spring 2313, connecting rod 232, second compression member 233, sliding block 2331, push rod 2332, compression chamber 2333, air inlet 2333a, air outlet 2333b, ventilation hole 2333c, piston 2334, airbag 234, guide rod 235, guide spring 236, one-way air outlet valve 237, one-way air inlet valve 238, balance member 24, balance plate 241, adjustment plate 242, slider 243, connection assembly 30, base 31, connecting column 32, connecting member 33, connecting block 331, locking block 332, locking groove 332a, L-shaped support block 34, positioning block 35, locking member 36, locking block 361, locking groove 361a, locking spring 362, floating plate 40. Detailed implementation manners

[0037] In order to clarify the technical solution and working principle of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, on the premise of no conflict, any combination can be formed between the following described embodiments or technical features to form a new embodiment.

[0038] The present invention provides a Figures 1-10 combined floating bridge capable of adaptively adjusting height as shown in the figure, including a plurality of buoys 10 arranged on the water surface to provide the main buoyancy, and the adjacent buoys 10 in the front and back are detachably connected; a buoyancy adjustment assembly 20 arranged between the adjacent buoys 10 on the left and right to adjust the height of the buoy 10 relative to the water surface according to the change of the water level; a connection assembly 30 arranged between the adjacent buoys 10 on the left and right to connect and fix the adjacent buoys 10; and a plurality of floating plates 40 horizontally arranged above the buoys 10, and the floating plates 40 are used to provide a passageway.

[0039] As Figures 2-4 shown, the buoy 10 adopts a cylindrical structure, the inside of the buoy 10 is filled with gas, the adjacent buoys 10 in the front and back are connected by a snap connection method, on the adjacent buoys 10 connected to each other in the front and back, one is provided with a clamping block 11 and the other is provided with a clamping groove 12, and the clamping block 11 is inserted into the clamping groove 12 from top to bottom to complete the connection and fixation of the adjacent buoys 10 in the front and back. A buoyancy adjustment assembly 20 is arranged between the adjacent buoys 10 on the left and right, and the buoyancy adjustment assembly 20 is also detachably connected to the buoy 10.

[0040] The buoyancy adjustment assembly 20 includes a frame 21, a multi-level water level adjustment member 22, a conversion member 23, and a balance member 24. The multi-level water level adjustment member 22 is disposed at the lower end inside the frame 21, the conversion member 23 is disposed at the upper end inside the frame 21, the conversion member 23 can be opened or closed with the water level adjustment member under the action of water pressure, the balance member 24 is disposed below the water level adjustment member, the balance member 24 is slidably connected to the side wall of the frame 21 up and down, and the balance member 24 can move up and down relative to the multi-level water level adjustment member 22 in a vertical plane.

[0041] The frame 21 is a hollow frame structure with an open lower end. The side wall of the frame 21 away from the floating drum 10 is provided with a plurality of first-stage flow ports 212, second-stage flow ports 213, third-stage flow ports 214, and fourth-stage flow ports 215 that increase in size from bottom to top. The functions of these multiple flow ports include two aspects. When water enters, it speeds up the entry speed of water flow and the exclusion speed of air; when water exits, it speeds up the discharge speed of water flow. Among them, the first-stage flow ports 212, second-stage flow ports 213, third-stage flow ports 214, and fourth-stage flow ports 215 are all located on the side wall of the frame 21 corresponding to the multi-level water level adjustment member 22. A pressure relief hole 216 is provided between the second-stage flow port 213 and the third-stage flow port 214. According to the structural layout of the multi-level water level adjustment member 22, the pressure relief hole 216 can further improve the water entry and drainage rates of the multi-level water level adjustment member 22. The side wall of the frame 21 close to the floating drum 10 is detachably connected to the floating drum 10. A horizontally arranged card slot 12 is provided on the side wall of the floating drum 10, and a horizontally arranged clamping block 11 is provided on the side wall of the frame 21 close to the floating drum 10. The clamping block 11 is inserted into the card slot 12 from front to back or from back to front in a horizontal plane. Thus, the connection and fixation of the frame 21 and the floating drum 10 are completed.

[0042] Such as Figure 5As shown in the figure, the multi-level water level adjusting member 22 includes a first-level cavity 221, a second-level cavity 222, and a third-level cavity 223 that are distributed from bottom to top. The setting of multiple cavities indicates that more water can be accommodated, thereby increasing the height range of water level adjustment. The first-level cavity 221, the second-level cavity 222, and the third-level cavity 223 are separated from each other. There are gaps between the first-level cavity 221, the second-level cavity 222, the third-level cavity 223 and the inner side wall of the frame 21. The internal spaces of the first-level cavity 221, the second-level cavity 222, and the third-level cavity 223 increase in sequence. A number of through holes 224 are provided on the side walls of the first-level cavity 221, the second-level cavity 222, and the third-level cavity 223. The gaps and the through holes 224 are provided for the flow of water and air. The internal bottom plates of the first-level cavity 221, the second-level cavity 222, and the third-level cavity 223 are higher in the middle and lower around, which is convenient for water to flow out of the cavity faster. The first-level circulation port 212, the second-level circulation port 213, and the third-level circulation port 214 are respectively located on the side walls of the first-level cavity 221, the second-level cavity 222, and the third-level cavity 223 that are far from the through holes 224. The heights of the first-level circulation port 212, the second-level circulation port 213, and the third-level circulation port 214 are lower than the heights of the through holes 224 on the side walls of the corresponding cavities. The height of the pressure relief hole 216 is higher than the height of the through hole 224 on the side wall of the second-level cavity 222. The conversion member 23 is arranged above the first-level cavity 221. The top plate of the third-level cavity 223 is connected to the inner side wall of the frame 21. The fourth-level circulation port 215 is arranged on the frame 21 above the third-level cavity 223. A number of through grooves are provided on both sides of the top plate of the third-level cavity 223. The bottom of the conversion member 23 is movably arranged in the through grooves. The conversion member 23 can open or close the through grooves under the action of water pressure.

[0043] The specific working process of the multi-level water level adjusting member 22 is as follows:

[0044] When the water level rises, first, water flows into the first-level cavity 221 from the corresponding first-level circulation port 212 on the first-level cavity 221. At this time, air enters the gap between the first-level cavity 221 and the frame 21 from the corresponding through hole 224 on the side wall of the first-level cavity 221. Then, as the water level rises, the air in the first-level cavity 221 is exhausted and the cavity is filled with water at the same time. A part of the air discharged from the first-level cavity 221 enters the second-level cavity 222 and the third-level cavity 223, and then is discharged from the second circulation port or the third circulation port. Another part will impact the conversion member 23 to move upward. This part of the air will enter the top end of the frame 21 and be discharged from the fourth-level circulation port 215. The volume of the first-level cavity 221 is the smallest, and at the same time, the size of the first-level circulation port 212 is also the smallest. If the rising and falling height of the water level never exceeds the height of the first-level cavity 221, it indicates that the water level change is small. At this time, the flow rate of water flowing into and out of the first-level cavity 221 can meet the requirements.

[0045] If the water level changes significantly, the flow velocity of the water will also be relatively large at this time, and the water flow will continue to spread upward. First, it enters from the corresponding secondary circulation port 213 on the secondary cavity 222. Air enters the gap between the secondary cavity 222 and the frame 21 through the corresponding through hole 224 on the side wall of the secondary cavity 222. Then, as the water level rises, the air in the secondary cavity 222 is exhausted, and at the same time, it is filled with water. A part of the air discharged from the secondary cavity 222 enters the tertiary cavity 223 and then is discharged from the third circulation port. Another part will impact the conversion part 23 to move upward. This part of the air will enter the top of the frame 21 and be discharged from the fourth circulation port 215. The volume of the secondary cavity 222 is larger than that of the primary cavity 221, and the secondary circulation port 213 is also larger than the primary circulation port 212. At this time, increasing the volume of the secondary cavity 222 and the size of the circulation port can quickly realize the water flow in the secondary cavity 222 and quickly achieve the state of re - balance. At the same time, in order to discharge the air faster, the pressure - relief hole 216 provided on the frame 21 corresponding to the secondary cavity 222 can quickly balance the pressure in the secondary cavity 222.

[0046] If the water level continues to rise, the water flow will continue to spread upward at this time. First, it enters from the corresponding tertiary circulation port 214 on the tertiary cavity 223. Air enters the gap between the tertiary cavity 223 and the frame 21 through the corresponding through hole 224 on the side wall of the tertiary cavity 223. Then, as the water level rises, the air in the tertiary cavity 223 is exhausted, and at the same time, it is filled with water. The air discharged from the tertiary cavity 223 will impact the conversion part 23 to move upward. This part of the air will enter the top of the frame 21 and be discharged from the fourth circulation port 215. When the water level spreads to the tertiary cavity 223, it indicates that the water level is relatively dangerous at this time. Since there is no pressure - relief hole 216 at this time, the air discharged from the tertiary cavity 223 will quickly impact the conversion part 23, and at the same time, the overflowing water will also impact the conversion part 23.

[0047] During the rising process of the water level, as more water is filled in the multi - level water level adjusting part 22, the pontoon bridge will sink as a whole at this time, and at the same time, the floating drum 10 will generate a greater buoyancy. When the buoyancy and the gravity of the pontoon bridge are balanced again, the pontoon bridge can achieve a stable state. Finally, the conversion part 23 is used to convert the driving force of the air and the driving force of the water flow into buoyancy, quickly increasing the overall buoyancy of the pontoon bridge, causing the pontoon bridge to float and ensuring the safety of the pontoon bridge.

[0048] Such as Figures 5-7As shown in the figure, the conversion part 23 includes a first compression part 231, a connecting rod 232, a second compression part 233 and an airbag 234. A part of the first compression part 231 is vertically arranged in the through groove. Under the impact of air and water flow, the first compression part 231 can reciprocate in the vertical plane. The second compression part 233 is horizontally arranged on the inner upper surface of the frame 21, and the second compression part 233 can reciprocate in the horizontal plane. The connecting rod 232 is hinged to the first compression part 231 and the second compression part 233. The airbag 234 is arranged on the outer upper surface of the frame 21, and the airbag 234 is communicated with the second compression part 233.

[0049] Using the first compression part 231, the impact force of air and water flow is converted into the up and down movement force of the first compression part 231. The first compression part 231 includes a moving block 2311, a telescopic rod 2312 and a compression spring 2313. The moving block 2311 is slidably arranged in the through groove. The telescopic rod 2312 is vertically arranged at the upper end of the moving block 2311. One end of the telescopic rod 2312 away from the moving block 2311 is connected to the inner wall of the frame 21. The compression spring 2313 is sleeved on the telescopic rod 2312. The connecting rod 232 is hinged to the moving block 2311.

[0050] Using the connection function of the connecting rod 232, the up and down driving force of the first compression part 231 is converted into the horizontal movement force of the second compression part 233. The second compression part 233 includes a sliding block 2331, a push rod 2332 and a compression chamber 2333. A sliding chamber is arranged at the top of the inner side wall of the frame 21. A ventilation hole 2333c is opened on the side wall of the sliding chamber. The sliding block 2331 is horizontally slidably arranged in the sliding chamber. The connecting rod 232 is hinged to the sliding block 2331. One end of the push rod 2332 is connected to the sliding block 2331, and the other end of the push rod 2332 is connected to the piston 2334. The piston 2334 is slidably arranged in the compression chamber 2333. A guide rod 235 parallel to the push rod 2332 is arranged outside the push rod 2332. One end of the guide rod 235 is connected to the sliding block 2331, and the other end of the guide rod 235 abuts against the side wall of the compression chamber 2333. A guide spring 236 is arranged on the guide rod 235. An air inlet 2333a and an air outlet 2333b are arranged on the compression chamber 2333. The air outlet 2333b is connected to the airbag 234 through a pipeline. A one-way air outlet valve 237 is arranged on the pipeline. A one-way air inlet valve 238 is arranged at the air inlet 2333a. The air inlet 2333a is communicated with the ventilation hole 2333c.

[0051] The linkage working process of the first compression part 231 and the second compression part 233 is as follows:

[0052] The air overflowing from the multi-level water level adjusting member 22 and the spreading water flow will impact the moving block 2311, and then the moving block 2311 will move upward. When the moving block 2311 moves upward out of the through groove, at this time, the upper end of the frame 21 is communicated with the three-stage cavity 223, and the air and water flow overflowing into the upper end of the frame 21 will flow out from the four-stage circulation port 215 at the upper end of the frame 21. When the impact force applied to the moving block 2311 is less than the elastic force of the compression spring 2313, at this time, the moving block 2311 will move downward to block the through groove. When the water pressure is greater than the elastic force of the compression spring 2313 again, the moving block 2311 will be impacted and move upward again.

[0053] During the up and down movement of the moving block 2311, the connecting rod 232 will convert the up and down movement of the moving block 2311 into the horizontal movement of the sliding block 2331, that is, when the moving block 2311 moves upward, the sliding block 2331 moves horizontally to the side away from the moving block 2311, and when the moving block 2311 moves downward, the sliding block 2331 moves horizontally to the side close to the moving block 2311. When the sliding block 2331 moves horizontally to the side away from the moving block 2311, at this time, the sliding block 2331 will drive the push rod 2332, and the push rod 2332 will drive the piston 2334 to squeeze the air in the compression chamber 2333 into the airbag 234, and then under the elastic force of the guiding spring 236, it will drive the piston 2334 to move in the reverse direction. At this time, the external air will be inhaled into the compression chamber 2333. Through the reciprocating movement of the sliding block 2331, the inflation process of the airbag 234 is realized.

[0054] As Figures 8-10 shown, the connecting component 30 can better splice each module of the floating bridge and fix the floating drum 10. The connecting component 30 includes a base 31, a connecting column 32 and a connecting piece 33. The base 31 is arranged on the side of the floating drum 10 away from the buoyancy adjusting component 20. The bases 31 of adjacent floating drums 10 are detachably connected. The connecting column 32 is arranged on the base 31, and the connecting piece 33 is detachably connected to the connecting column 32; the floating board 40 is detachably connected to the connecting column 32.

[0055] An L-shaped support block 34 is arranged between the floating board 40 and the connecting column 32. The horizontal end of the L-shaped support block 34 is sleeved on the connecting column 32, and the vertical end of the L-shaped support block 34 is connected to the floating board 40. The L-shaped support block 34 can play a supporting role and maintain the horizontal stability of the floating board 40. A positioning block 35 is arranged at the top of the connecting column 32.

[0056] The connecting member 33 includes a connecting block 331 and a locking block 332. The connecting block 331 is sleeved on the adjacent connecting columns 32 of the adjacent bases 31. Through the connecting block 331, two adjacent pontoons 10 can be connected and fixed. The locking block 332 is rotatably arranged at the upper end of the connecting block 331. A locking groove 332a is arranged on one side of the locking block 332 close to the connecting column 32. The side of the positioning block 35 is clamped in the locking groove 332a. The locking block 332 is connected to the connecting block 331 through a torsion spring.

[0057] A locking member 36 is arranged on the connecting block 331. The locking member 36 includes a locking block 361 and a locking spring 362. A locking groove 331a is arranged on the connecting block 331. The locking spring 362 is vertically arranged in the locking groove 331a. The lower end of the locking block 361 is connected to the locking spring 362. Under the action of the locking spring 362, the upper end of the locking block 361 protrudes from the upper surface of the connecting block 331. The locking block 361 has a triangular structure. The locking block 332 can compress the locking block 361 into the locking groove 331a.

[0058] The locking process of the locking block 332 is as follows:

[0059] First, the connecting block 331 is sleeved on the connecting column 32 to connect and fix two adjacent pontoons 10. Then, the locking block 332 is rotated and moved in the direction close to the positioning block 35. During the movement, the locking block 361 will be squeezed into the locking groove 361a. When the locking block 332 rotates past the locking groove 361a, the locking block 361 will rebound upward under the action of the locking spring 362, so that the side wall of the locking block 361 abuts against the side wall of the locking block 332. Finally, the locking groove 332a on the locking block 332 is clamped on the positioning block 35, and the locking and positioning are finally realized.

[0060] When it is necessary to release the locked state, by pressing the locking block 332, the locking groove 332a is separated from the positioning block 35, and then the locking block 332 can be rotated.

[0061] The balancing member 24 can enhance the balance of the overall buoyancy of the floating bridge. The balancing member 24 includes a balance plate 241, an adjusting plate 242, and a slider 243. The balance plate 241 is arranged below the first-level cavity 221. There is a gap between the balance plate 241 and the first-level cavity 221. The adjusting plates 242 are arranged on both sides of the balance plate 241. A balance cavity 211 is formed on the side wall of the frame 21. The slider 243 slides up and down in the balance cavity 211. The adjusting plate 242 is connected to the slider 243.

[0062] The working principle of the balancing member 24 is as follows:

[0063] After the pontoon bridge achieves overall balance by relying on the multi-level water level adjusting member 22, the first compression member 231, and the second compression member 233, during the passage, if the passing weight suddenly increases and the multi-level water level adjusting member 22, the first compression member 231, and the second compression member 233 are not in time to adjust, the overall pontoon bridge will sink. During the sinking process of the pontoon bridge, due to the large contact area of the balance plate 241 with the water surface, under the action of water pressure, the descending amplitude is less than that of the multi-level water level adjusting member 22. At this time, the slider 243 will move upward relative to the multi-level water level adjusting member 22, compressing the air in the balance chamber 211 and slowing down the descending speed of the multi-level water level adjusting member 22. Conversely, when the passing weight suddenly decreases, the ascending speed of the multi-level water level adjusting member 22 can also be slowed down by the above principle. Finally, the effect of reducing the fluctuation amplitude and speed of the pontoon bridge is achieved.

[0064] For the structure of this pontoon bridge, during installation and disassembly, first, the adjacent front and rear pontoons 10 are connected and fixed by means of vertical up-and-down clamping, then the pontoon 10 and the multi-level water level adjusting member 22 are connected and fixed by means of horizontal lateral clamping, and finally, the connection assembly 30 is used to combine and assemble multiple bases 31. The assembly method is convenient and simple, and rigid connections are adopted between each module to ensure the consistency of the up-and-down movement of the pontoon bridge.

[0065] During operation, the pontoon 10 provides basic buoyancy. When the water level changes, the multi-level water level adjusting member 22 is used to adaptively adjust the change in water level height, reducing the fluctuation amplitude and frequency of the pontoon bridge during the height change process. When the water level is approaching the warning line, the first compression member 231 and the second compression member 233 are used to convert the impact force of water flow and air into the buoyancy of the airbag 234, thereby providing the buoyancy of the entire pontoon bridge and enabling the pontoon bridge to float.

[0066] Finally, the balance member 24 is used to buffer the situation of large gravity changes during passage.

[0067] The above is only the preferred implementation mode of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should be regarded as within the protection scope of the present invention.

Claims

1. A combined floating bridge capable of self-adapting height adjustment, characterized in that: include, A plurality of buoys are arranged on the water surface, and the front and rear adjacent buoys are detachably connected; A buoyancy adjustment component is arranged between adjacent buoys on the left and right sides, and is used to adjust the height of the buoy relative to the water surface according to the change of the water level. The buoyancy adjustment component includes a frame, a multi-stage water level adjustment component, a conversion component and a balancing component. The multi-stage water level adjustment component is arranged at the lower end of the frame, and the conversion component is arranged at the upper end of the frame. The conversion component can be opened or closed with the water level adjustment component under the action of water pressure. The balancing component is arranged below the water level adjustment component, and the balancing component is connected to the side wall of the frame in an up-and-down sliding manner. The balancing component can move up and down in a vertical plane relative to the multi-stage water level adjustment component. A connecting assembly is provided between adjacent buoys on the left and right sides, and is used to connect and fix adjacent buoys. The connecting assembly includes a base, a connecting column and a connecting piece. The base is provided on a side of the buoy away from the buoyancy adjustment assembly, and the bases of adjacent buoys are detachably connected. The connecting column is provided on the base, and the connecting piece is detachably connected to the connecting column. A plurality of floating plates are horizontally arranged above the buoy and are detachably connected to the connecting column.

2. The height-adjustable combined floating bridge according to claim 1, characterized in that: The frame is a hollow frame structure with an open lower end. The side wall of the frame away from the buoy is provided with multiple first-level flow openings, second-level flow openings, third-level flow openings and fourth-level flow openings which increase in size from bottom to top. The first-level flow openings, second-level flow openings, third-level flow openings and fourth-level flow openings are all located on the side walls of the frame corresponding to the multi-stage water level regulating components. A pressure relief hole is provided between the second-level flow openings and the third-level flow openings. The side wall of the frame close to the buoy is detachably connected to the buoy.

3. The height-adjustable combined floating bridge according to claim 2, characterized in that: The multi-stage water level regulating member comprises a primary cavity, a secondary cavity and a tertiary cavity distributed from bottom to top, the primary cavity, the secondary cavity and the tertiary cavity are separated from each other, a gap is left between the primary cavity, the secondary cavity and the tertiary cavity and the inner side wall of the frame, the internal space of the primary cavity, the secondary cavity and the tertiary cavity increases successively, a plurality of through holes are arranged on the side walls of the primary cavity, the secondary cavity and the tertiary cavity, the internal bottom plates of the primary cavity, the secondary cavity and the tertiary cavity are high in the middle and low around, the primary flow port, the secondary flow port and the tertiary flow port are respectively located in the primary cavity, the secondary cavity and the tertiary cavity, and the tertiary cavity is provided with a plurality of through holes ... On the side walls of the cavity and the tertiary cavity away from the through hole, the heights of the primary flow port, the secondary flow port and the tertiary flow port are all lower than the height of the through hole on the corresponding cavity side wall, the height of the pressure relief hole is higher than the height of the through hole on the secondary cavity side wall, the conversion member is arranged above the primary cavity, the top plate of the primary cavity is connected to the inner side wall of the frame, the fourth-level flow port is arranged on the frame above the primary cavity, a number of through grooves are opened on both sides of the top plate of the primary cavity, the bottom of the conversion member is movably arranged in the through groove, and the conversion member can open or close the through groove under the action of water pressure.

4. The height-adjustable combined floating bridge according to claim 3, characterized in that: The conversion component includes a first compression component, a connecting rod, a second compression component and an airbag. Part of the first compression component is vertically arranged in the through groove, and the first compression component can reciprocate in the vertical plane. The second compression component is horizontally arranged on the inner upper surface of the frame, and the second compression component can reciprocate in the horizontal plane. The connecting rod is hinged to the first compression component and the second compression component. The airbag is arranged on the outer upper surface of the frame, and the airbag is connected to the second compression component.

5. The height-adjustable combined floating bridge according to claim 4, characterized in that: The first compression member includes a moving block, a telescopic rod and a compression spring. The moving block is slidably arranged in a through groove. The telescopic rod is vertically arranged at the upper end of the moving block. One end of the telescopic rod away from the moving block is connected to the inner wall of the frame. The compression spring is sleeved on the telescopic rod, and the connecting rod is hinged to the moving block.

6. The height-adjustable combined floating bridge according to claim 5, characterized in that: The second compression member includes a sliding block, a push rod and a compression chamber. A sliding chamber is provided at the top of the inner side wall of the frame. An air vent is provided on the side wall of the sliding chamber. The sliding block is horizontally slidably arranged in the sliding chamber. The connecting rod is hinged to the sliding block. One end of the push rod is connected to the sliding block, and the other end of the push rod is connected to the piston. The piston is slidably arranged in the compression chamber. A guide rod parallel to the push rod is provided on the outside of the push rod. One end of the guide rod is connected to the sliding block, and the other end of the guide rod rests on the side wall of the compression chamber. A guide spring is provided on the guide rod. An air inlet and an air outlet are provided on the compression chamber. The air outlet is connected to the airbag by a pipeline. A one-way air outlet valve is provided on the pipeline. A one-way air inlet valve is provided at the air inlet, and the air inlet is connected to the air vent.

7. The height-adjustable combined floating bridge according to claim 6, characterized in that: An L-shaped support block is arranged between the floating plate and the connecting column, the horizontal end of the L-shaped support block is sleeved on the connecting column, the vertical end of the L-shaped support block is connected to the floating plate, and a positioning block is arranged on the top of the connecting column.

8. The height-adjustable combined floating bridge according to claim 7, characterized in that: The connecting piece includes a connecting block and a locking block. The connecting block sleeve is arranged on the adjacent connecting column of the adjacent base. The locking block is rotatably arranged on the upper end of the connecting block. A slot is arranged on one side of the locking block close to the connecting column. The side of the positioning block is clamped in the slot.

9. The height-adjustable combined floating bridge according to claim 8, characterized in that: A locking piece is provided on the connecting block, and the locking piece includes a locking block and a locking spring. A locking groove is provided on the connecting block, and the locking spring is vertically arranged in the locking groove. The lower end of the locking block is connected to the locking spring. Under the action of the locking spring, the upper end of the locking block protrudes from the upper surface of the U-shaped block. The locking block has a triangular structure, and the locking block can compress the locking block into the locking groove.

10. The height-adjustable combined floating bridge according to claim 3, characterized in that: The balancing member includes a balancing plate, an adjusting plate, and a sliding block. The balancing plate is arranged below the primary cavity. A gap is arranged between the balancing plate and the primary cavity. The adjusting plate is arranged on both sides of the balancing plate. A balancing cavity is opened on the side wall of the frame. The sliding block is arranged in the balancing cavity to slide up and down, and the adjusting plate is connected to the sliding block.

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