Floating bridge fixing device

Abstract

The invention discloses a floating bridge fixing device which comprises a floating bridge plate and a floating body arranged at the bottom of the floating bridge plate, the edge of the floating bridge plate is provided with a protection assembly, the protection assembly comprises fixing seats fixedly arranged at the two ends of the edges of the front side and the rear side of the floating bridge plate, and the two fixing seats on the same side are jointly and rotationally connected with a rotating shaft; a guardrail is fixedly arranged at the upper end of the rotating shaft; the floating bridge plate assembly further comprises a primary splicing assembly, the splicing assembly is used for fixing adjacent floating bridge plates, and the splicing assembly comprises a containing cavity formed in the inner side of one end of each floating bridge plate. According to the floating bridge fixing device, splicing and fixing between the adjacent floating bridge plates are facilitated through the arranged primary splicing assembly, the primary splicing assembly and the protection assembly are arranged through the linkage assembly, splicing and fixing between the primary splicing assembly and the adjacent floating bridge plates can be achieved while the protection assembly is turned over, operation is convenient, the structure is compact, and efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of floating bridges, and in particular to a floating bridge fixing device. Background Art

[0002] The spliced ​​floating bridge is an important structure widely used in water transportation, temporary passages, emergency rescue and other fields. It is usually composed of multiple floating bridge units, each of which has a certain buoyancy and can be connected to each other in some way to form an integral floating bridge structure. This type of floating bridge has the characteristics of strong flexibility, easy construction and disassembly, and strong adaptability, so it can be used in various complex water environments.

[0003] Although the spliced ​​floating bridge has many advantages, its splicing and fixing structure has some problems in practical applications, which are specifically manifested in the following two aspects: the existing splicing and fixing structure of the floating bridge is often designed to be more complicated, requiring installers to spend a lot of time and energy on splicing. For example, some structures may require the use of a large number of fasteners such as bolts and nuts, or require the use of professional tools and equipment to complete the splicing. This not only increases the difficulty of construction, but also prolongs the construction time, thereby affecting the efficiency of building the floating bridge.

[0004] In addition to the cumbersome fixation, the firmness of the existing floating bridge splicing and fixing structure also has certain problems. Due to the unstable connection between the floating bridge units, or the improper selection and installation of fasteners, the floating bridge is prone to loosening, deformation, or even breakage during use. This not only affects the service life of the floating bridge, but may also pose a threat to the safety of personnel. Therefore, it is necessary to propose a floating bridge fixing device to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a floating bridge fixing device, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a floating bridge fixing device, comprising a floating bridge board and a floating body arranged at the bottom of the floating bridge board, the edge of the floating bridge board is provided with a protection component, the protection component comprises a fixing seat fixedly arranged at both ends of the front and rear edges of the floating bridge board, two fixing seats on the same side are connected with a rotating shaft for common rotation, and a guardrail is fixedly arranged on the upper end of the rotating shaft; It also includes a primary splicing component, the splicing component is used to fix adjacent floating bridge boards, the splicing component includes a accommodating cavity arranged on the inner side of one end of the floating bridge board, the inner side of the accommodating cavity is movably connected with a traction plate along the length direction of the floating bridge board, the first inner plates are symmetrically arranged at both ends of one side of the traction plate, the first inner plate is movably sleeved with a hollow first splicing plate on the outer side away from one end of the traction plate, the end of the floating bridge board close to the accommodating cavity is provided with a second through groove corresponding to the first splicing plate and used for the first splicing plate to enter and exit, and the end of the floating bridge board away from the accommodating cavity is provided with a through groove adapted to the first splicing plate and used for the first splicing plate to enter and exit. A first splicing groove for plugging in a first splicing plate on an adjacent floating bridge board, a primary slot is provided on one side of the end of the first splicing groove, a fourth through slot is provided on a side wall of an end of the first splicing plate away from the first inner plate, a primary plug-in block for plugging and cooperating with the primary slot is movably connected to the inner side of the fourth through slot along the width direction of the first splicing plate, a second guide groove is provided on the top of the primary plug-in block, a second guide shaft movably connected to the second guide groove is provided on one end of the first inner plate away from the traction plate, and is configured so that when the first inner plate and the first splicing plate move closer to each other, the primary plug-in block moves toward the outer side of the first splicing plate; The splicing assembly and the protection assembly are linked through a linkage assembly, and are configured so that when the guardrail is flipped to vertical, the first splicing plate can be inserted into the first splicing groove on the adjacent floating bridge plate, and one end of the primary plug-in block can be inserted into the inner side of the primary slot inside the first splicing groove.

[0007] Preferably, a first limiting block is provided on a side wall of the first splicing plate close to one end of the first inner plate.

[0008] Preferably, a second groove is provided on the first inner plate, a second stop block slidingly matched with the second groove is fixedly provided on the inner wall of the first splicing plate, and a second spring is provided between a side of the second stop block close to the traction plate and an end of the second groove close to the traction plate.

[0009] Preferably, the linkage assembly includes an extension plate arranged at the end of the traction plate, a first through groove corresponding to the extension plate is provided on the side wall of one end of the floating bridge plate close to the accommodating cavity, the end of the extension plate away from the traction plate extends outward through the first through groove, and a first guide shaft is vertically provided on the end extending to the outside of the floating bridge plate, and a first spiral guide groove is provided on the outer wall of one end of the rotating shaft close to the accommodating cavity, the upper end of the first guide shaft is used to cooperate with the first guide groove for active guidance, and is configured so that when the guardrail is flipped from horizontal to vertical, the traction plate drives the first splicing plate to extend, and the primary plug block extends.

[0010] Preferably, it also includes a secondary splicing assembly, the secondary splicing assembly includes a second splicing plate arranged in the middle of one side of the traction plate close to the first inner plate, a second splicing groove adapted to the second splicing plate and used for plugging the second splicing plate on the adjacent pontoon plate is arranged in the middle of one end of the pontoon plate away from the accommodating cavity, and the second splicing groove is connected to the primary slot, a third through slot for the second splicing plate to enter and exit is arranged at one end of the pontoon plate close to the accommodating cavity, a secondary slot is arranged on the side wall of the second splicing plate away from the end of the traction plate, and a movably arranged inner side of the primary slot There is a secondary plug-in block, and a force block is arranged at one end of the secondary plug-in block close to the first splicing groove. A first groove is arranged on the secondary plug-in block. A first stop block slidingly matched with the first groove is fixedly arranged on the inner wall of the primary slot. A first spring is arranged between a side of the first stop block close to the first splicing groove and an end of the first groove close to the first splicing groove. An end of the secondary plug-in block away from the force block is used for plugging and matching with the secondary slot, and is configured so that when the primary plug-in block is fully plugged into the primary slot, one end of the secondary plug-in block is just plugged into the secondary slot.

[0011] Preferably, a second inner plate corresponding to the second splicing plate is provided on one side of the traction plate close to the second splicing plate, the second splicing plate is a hollow structure, and the second splicing plate is movably sleeved on the outside of the second inner plate, a second limit block is provided on the side wall of the second splicing plate close to one end of the traction plate, a third groove is provided on the second inner plate, a third stop block slidingly matched with the third groove is fixedly provided on the inner wall of the second splicing plate, and a third spring is provided between the side of the third stop block close to the traction plate and one end of the third groove close to the traction plate.

[0012] Preferably, a tertiary splicing assembly is arranged on the secondary splicing assembly, and the tertiary splicing assembly includes a tertiary plug block arranged at the end of the second inner plate away from the traction plate, and the side wall of the end of the secondary plug block away from the force-bearing block is provided with a tertiary slot adapted to the tertiary plug block, and the tertiary plug block is used to be plugged into and matched with the tertiary slot.

[0013] Preferably, a pair of tertiary plug blocks are provided on the second inner plate, and the two tertiary plug blocks are respectively used for plugging and cooperating with the tertiary slots on the two secondary plug blocks.

[0014] Preferably, a locking assembly for fixing the rotating shaft is provided at the end of the floating bridge board, and the locking assembly includes a round shell embedded in the fixing seat, a locking pin is movably connected to the inner side of the round shell, a pull pin extending to the outer side of the round shell is provided at the end of the locking pin away from the rotating shaft, a fourth spring is provided between the end of the locking pin away from the rotating shaft and the inner wall of the round shell, a locking port adapted to the locking pin is provided on the end side wall of the rotating shaft, and the locking port is configured to match the locking pin when the guardrail is in a vertical state.

[0015] Preferably, the pull pin is "T"-shaped, and the fourth spring is located on the outside of one end of the pull pin close to the locking pin.

[0016] Compared with the prior art, the present invention provides a floating bridge fixing device, which has the following beneficial effects: 1. The pontoon fixing device facilitates the splicing and fixing of adjacent pontoon boards by setting up a one-time splicing component, and is set up with the protection component through a linkage component. The one-time splicing component and the adjacent pontoon boards can be spliced ​​and fixed while flipping the protection component. The operation is convenient, the structure is compact, and the efficiency is improved.

[0017] 2. The floating bridge fixing device can further fix the connection between adjacent floating bridge boards after the primary splicing components are spliced ​​and fixed by setting the secondary splicing components and the tertiary splicing components, thereby increasing the firmness and preventing separation. Moreover, when the primary splicing components are spliced ​​and fixed, the secondary splicing components and the tertiary splicing components are automatically completed, and the linkage setting is convenient to use.

[0018] 3. The setting of the locking assembly of the floating bridge fixing device facilitates the locking of the protection assembly, thereby avoiding the overturning of the protection assembly and increasing the firmness of the splicing between adjacent floating bridge boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 It is a schematic diagram of the structure of the guardrail of the present invention in a vertical state; Figure 4 It is a schematic diagram of the structure of two floating bridge boards of the present invention in a spliced ​​state; Figure 5 is a schematic diagram of the cross-sectional structure of the floating bridge board of the present invention; Figure 6 The present invention Figure 5 Schematic diagram of the structure after the first splicing assembly, the second splicing assembly and the third splicing assembly on the foundation are removed; Figure 7 It is a structural schematic diagram of the present invention in which the secondary plug-in block and the first stop block are separated; Figure 8 It is a structural schematic diagram of the first splicing plate, the second splicing plate, the first inner plate, the second inner plate, the second stop block, and the third stop block of the present invention in a disassembled state; Fig. 9 The present invention Figure 8 A structural diagram from another perspective based on the above; Fig.10 It is a structural schematic diagram of the primary splicing assembly, the secondary splicing assembly, and the tertiary splicing assembly of the present invention in a splicing state; Fig.11 It is a schematic diagram of the structure of the locking assembly and the rotating shaft of the present invention when they are disassembled.

[0020] In the figure: 1, floating bridge board; 2, floating body; 3, guardrail; 4, fixed seat; 5, rotating shaft; 6, first guide groove; 7, first guide shaft; 8, first splicing plate; 9, second splicing plate; 10, round shell; 11, first splicing groove; 12, second splicing groove; 13, first through groove; 14, primary slot; 15, force block; 16, secondary plug-in block; 17, accommodating cavity; 18, traction plate; 19, extension plate; 20, first inner plate; 21, second inner plate; 22, second through groove; 23, third through groove; 24, first A groove; 25, a first stop block; 26, a first spring; 27, a three-way slot; 28, a first limit block; 29, a second limit block; 30, a primary plug-in block; 31, a second guide groove; 32, a second guide shaft; 33, a second groove; 34, a second stop block; 35, a second spring; 36, a three-way plug-in block; 37, a two-way slot; 38, a third groove; 39, a third stop block; 40, a third spring; 41, a fourth through groove; 42, a locking port; 43, a pull pin; 44, a fourth spring; 45, a locking pin. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figure 1-11 As shown, a floating bridge fixing device comprises a floating bridge board 1 and a floating body 2 arranged at the bottom of the floating bridge board 1, a protective assembly is arranged at the edge of the floating bridge board 1, and the protective assembly comprises a fixing seat 4 fixedly arranged at both ends of the front and rear edges of the floating bridge board 1, and a rotating shaft 5 is rotatably connected to the two fixing seats 4 on the same side, and a guardrail 3 is fixedly arranged on the upper end of the rotating shaft 5; It also includes a primary splicing component, which is used to fix adjacent floating bridge boards 1. The splicing component includes an accommodating cavity 17 arranged on the inner side of one end of the floating bridge board 1, and a traction plate 18 is movably connected to the inner side of the accommodating cavity 17 along the length direction of the floating bridge board 1. First inner plates 20 are symmetrically arranged at both ends of one side of the traction plate 18, and a hollow first splicing plate 8 is movably sleeved on the outer side of the first inner plate 20 away from one end of the traction plate 18. A second through groove 22 corresponding to the first splicing plate 8 and used for the first splicing plate 8 to enter and exit is arranged at one end of the floating bridge board 1 close to the accommodating cavity 17, and a first splicing groove 11 adapted to the first splicing plate 8 and used for plugging the first splicing plate 8 on the adjacent floating bridge board 1 is arranged at one end of the floating bridge board 1 away from the accommodating cavity 17, and a primary slot 14 is arranged on one side of the end of the first splicing groove 11, and a first splicing groove 14 is arranged on the side wall of the end of the first splicing plate 8 away from the first inner plate 20. Four through grooves 41, the inner side of the fourth through groove 41 is movably connected with a primary plug-in block 30 for plugging and cooperating with the primary slot 14 along the width direction of the first splicing plate 8, a second guide groove 31 is arranged on the top of the primary plug-in block 30, an end of the first inner plate 20 away from the traction plate 18 is provided with a second guide shaft 32 movably connected and guided with the second guide groove 31, and is configured so that when the first inner plate 20 and the first splicing plate 8 move toward each other, the primary plug-in block 30 moves toward the outer side of the first splicing plate 8, a first limit block 28 is arranged on the side wall of the first splicing plate 8 close to one end of the first inner plate 20, a second groove 33 is arranged on the first inner plate 20, a second stop block 34 slidably cooperating with the second groove 33 is fixedly arranged on the inner wall of the first splicing plate 8, and a second spring 35 is arranged between the side of the second stop block 34 close to the traction plate 18 and the end of the second groove 33 close to the traction plate 18; The splicing assembly and the protection assembly are linked through a linkage assembly, and are configured such that when the guardrail 3 is flipped to a vertical position, the first splicing plate 8 can be inserted into the first splicing groove 11 on the adjacent floating bridge plate 1, and one end of the primary plug-in block 30 can be inserted into the inner side of the primary slot 14 on the inner side of the first splicing groove 11. Specifically, the linkage assembly includes an extension plate 19 arranged at the end of the traction plate 18, and a first through groove 13 corresponding to the extension plate 19 is arranged on the side wall of one end of the floating bridge plate 1 close to the accommodating cavity 17. The end of the extension plate 19 away from the traction plate 18 extends outward through the first through groove 13, and a first guide shaft 7 is vertically arranged on the end extending to the outside of the floating bridge plate 1, and a spiral first guide groove 6 is arranged on the outer wall of one end of the rotating shaft 5 close to the accommodating cavity 17. The upper end of the first guide shaft 7 is used for active guiding cooperation with the first guide groove 6, and is configured such that when the guardrail 3 is flipped from a horizontal position to a vertical position, the traction plate 18 drives the first splicing plate 8 to extend, and the primary plug-in block 30 extends.

[0023] The secondary splicing assembly also includes a second splicing plate 9 arranged in the middle of one side of the traction plate 18 close to the first inner plate 20, a second splicing groove 12 adapted to the second splicing plate 9 and used for plugging in the second splicing plate 9 on the adjacent floating bridge plate 1 is arranged in the middle of one end of the floating bridge plate 1 away from the accommodating cavity 17, and the second splicing groove 12 is connected to the primary slot 14, a third through slot 23 for the second splicing plate 9 to enter and exit is arranged at one end of the floating bridge plate 1 close to the accommodating cavity 17, a secondary slot 37 is arranged on the side wall of the second splicing plate 9 away from the end of the traction plate 18, a secondary plug-in block 16 is movably arranged on the inner side of the primary slot 14, a force block 15 is arranged at one end of the secondary plug-in block 16 close to the first splicing groove 11, a first groove 24 is arranged on the secondary plug-in block 16, a first stop block 25 slidably matched with the first groove 24 is fixedly arranged on the inner wall of the primary slot 14, and a side of the first stop block 25 close to the first splicing groove 11 is connected to the first stop block 25. A first spring 26 is arranged between one end of the first groove 24 close to the first splicing groove 11, and one end of the secondary plug-in block 16 away from the force-bearing block 15 is used for plugging and cooperating with the secondary slot 37, and is configured so that when the primary plug-in block 30 is fully plugged into the primary slot 14, one end of the secondary plug-in block 16 is just inserted into the secondary slot 37, and a second inner plate 21 corresponding to the second splicing plate 9 is arranged on one side of the traction plate 18 close to the second splicing plate 9, the second splicing plate 9 is a hollow structure, and the second splicing plate 9 is movably sleeved on the outside of the second inner plate 21, and a second limit block 29 is arranged on the side wall of the second splicing plate 9 close to one end of the traction plate 18, and a third groove 38 is arranged on the second inner plate 21, and a third stop block 39 slidingly cooperating with the third groove 38 is fixedly arranged on the inner wall of the second splicing plate 9, and a third spring 40 is arranged between the side of the third stop block 39 close to the traction plate 18 and one end of the third groove 38 close to the traction plate 18.

[0024] A tertiary splicing assembly is arranged on the secondary splicing assembly, and the tertiary splicing assembly includes a tertiary plug block 36 arranged at the end of the second inner plate 21 away from the traction plate 18, and a tertiary slot 27 adapted to the tertiary plug block 36 is arranged on the side wall of the end of the secondary plug block 16 away from the force block 15, and the tertiary plug block 36 is used to be plugged and matched with the tertiary slot 27, and a pair of tertiary plug blocks 36 are arranged on the second inner plate 21, and the two tertiary plug blocks 36 are respectively used to be plugged and matched with the tertiary slots 27 on the two secondary plug blocks 16.

[0025] A locking assembly for fixing the rotating shaft 5 is provided at the end of the floating bridge board 1, and the locking assembly includes a round shell 10 embedded in the fixing seat 4, and a locking pin 45 is movably connected to the inner side of the round shell 10, and a pull pin 43 extending to the outer side of the round shell 10 is provided at the end of the locking pin 45 away from the rotating shaft 5, and a fourth spring 44 is provided between the end of the locking pin 45 away from the rotating shaft 5 and the inner wall of the round shell 10, the pull pin 43 is "T" shaped, and the fourth spring 44 is located on the outer side of the pull pin 43 near the end of the locking pin 45, and the end side wall of the rotating shaft 5 is provided with a locking port 42 adapted to the locking pin 45, and is configured so that the locking port 42 is consistent with the locking pin 45 when the guardrail 3 is in a vertical state.

[0026] When two floating bridge boards 1 are spliced ​​in use, the first splicing plate 8 and the second splicing plate 9 at the end of the first floating bridge board 1 are aligned with the first splicing groove 11 and the second splicing groove 12 at the end of the other floating bridge board 1, and then the guardrail 3 on the first floating bridge board 1 is flipped over. When flipping the guardrail 3, the rotating shaft 5 rotates, and under the action of the first guide groove 6, the extension plate 19 and the traction plate 18 of the first guide shaft 7 are displaced as a whole, and the traction plate 18 drives the first inner plate 20, the first splicing plate 8, the second inner plate 21, and the second splicing plate 9 to move outward as a whole, and then the first splicing plate 8 enters the first splicing groove 11, and the second splicing plate 9 enters the second splicing groove 12. After fully entering, the first limit block 28 limits the first splicing plate 8, and the second limit block 29 limits the second splicing plate 9, and then the traction plate 18 continues to displace, the first splicing plate 8 and the second splicing plate 9 remain stationary, and the first inner plate 20 and the second inner plate 21 continue to follow the traction plate 18 is displaced, and then the second spring 35 and the third spring 40 are compressed, and the second guide shaft 32 cooperates with the second guide groove 31 to drive the primary plug block 30 to move toward the primary slot 14, thereby realizing primary fixation, and when the primary plug block 30 moves into the primary slot 14, it will push the force-bearing block 15, and the force-bearing block 15 drives the secondary plug block 16 to move, and the first spring 26 is compressed, and then the end of the secondary plug block 16 away from the force-bearing block 15 is inserted into the secondary slot 37, thereby completing the secondary fixation, and then with the displacement of the traction plate 18, the tertiary plug block 36 at the end of the second inner plate 21 will enter the tertiary slot 27, thereby realizing the tertiary fixation, and finally the guardrail 3 is in a vertical state, and in the vertical state, the locking pin 45 just coincides with the locking port 42, and then the fourth spring 44 is reset, the locking pin 45 is plugged into the locking port 42, and the rotating shaft 5 is fixed, thereby realizing the splicing between the two floating bridge boards 1, and the same applies when multiple floating bridge boards 1 are spliced; During disassembly, the knife pull pin 43 is pulled outward to drive one end of the locking pin 45 to disengage from the locking port 42, and then the guardrail 3 is flipped to the level of the top of the floating bridge board 1, and the first splicing plate 8 and the second splicing plate 9 can be separated from the first splicing groove 11 and the second splicing groove 12.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A floating bridge fixing device, comprising a floating bridge board (1) and a floating body (2) arranged at the bottom of the floating bridge board (1), characterized in that: The edge of the floating bridge board (1) is provided with a protection component, the protection component comprising a fixing seat (4) fixedly arranged at both ends of the front and rear edges of the floating bridge board (1), two fixing seats (4) on the same side are connected to a rotating shaft (5) for common rotation, and a guardrail (3) is fixedly arranged on the upper end of the rotating shaft (5); The invention also comprises a primary splicing assembly, the splicing assembly being used for fixing adjacent floating bridge plates (1), the splicing assembly comprising a receiving cavity (17) arranged on the inner side of one end of the floating bridge plate (1), the inner side of the receiving cavity (17) being movably connected with a traction plate (18) along the length direction of the floating bridge plate (1), the first inner plates (20) being symmetrically arranged at both ends of one side of the traction plate (18), the outer side of the first inner plate (20) away from the end of the traction plate (18) being movably sleeved with a hollow first splicing plate (8), the end of the floating bridge plate (1) close to the receiving cavity (17) being provided with a second through groove (22) corresponding to the first splicing plate (8) and used for the first splicing plate (8) to enter and exit, the end of the floating bridge plate (1) away from the receiving cavity (17) being provided with a second splicing plate (22) adapted to the first splicing plate (8) and used for the adjacent floating bridge plate (1) to enter and exit, a first splicing groove (11) for plugging in a first splicing plate (8), a primary slot (14) being arranged on one side of the end of the first splicing groove (11), a fourth through slot (41) being arranged on the side wall of one end of the first splicing plate (8) away from the first inner plate (20), a primary plug block (30) being movably connected along the width direction of the first splicing plate (8) on the inner side of the fourth through slot (41) for plugging and cooperating with the primary slot (14), a second guide groove (31) being arranged on the top of the primary plug block (30), a second guide shaft (32) being movably connected to the second guide groove (31) being arranged on one end of the first inner plate (20) away from the traction plate (18), and being configured so that when the first inner plate (20) and the first splicing plate (8) are displaced toward each other, the primary plug block (30) is displaced toward the outer side of the first splicing plate (8); The splicing assembly and the protection assembly are linked via a linkage assembly, and are configured such that when the guardrail (3) is flipped to a vertical position, the first splicing plate (8) can be inserted into a first splicing groove (11) on an adjacent floating bridge plate (1), and one end of a primary plug block (30) can be inserted into the inside of a primary slot (14) inside the first splicing groove (11).

2. A floating bridge fixing device according to claim 1, characterized in that: A first limiting block (28) is provided on a side wall of the first splicing plate (8) close to one end of the first inner plate (20).

3. A floating bridge fixing device according to claim 1, characterized in that: A second groove (33) is provided on the first inner plate (20), a second stop block (34) slidably engaged with the second groove (33) is fixedly provided on the inner wall of the first splicing plate (8), and a second spring (35) is provided between a side of the second stop block (34) close to the traction plate (18) and an end of the second groove (33) close to the traction plate (18).

4. A floating bridge fixing device according to claim 1, characterized in that: The linkage assembly comprises an extension plate (19) arranged at the end of the traction plate (18); a first through slot (13) corresponding to the extension plate (19) is arranged on a side wall of one end of the floating bridge plate (1) close to the accommodating cavity (17); an end of the extension plate (19) away from the traction plate (18) extends outward through the first through slot (13), and a first guide shaft (7) is vertically arranged on the end extending to the outside of the floating bridge plate (1); a first spiral guide slot (6) is arranged on the outer wall of one end of the rotating shaft (5) close to the accommodating cavity (17); the upper end of the first guide slot (7) is used to cooperate with the first guide slot (6) for active guidance, and is configured so that when the guardrail (3) is flipped from horizontal to vertical, the traction plate (18) drives the first splicing plate (8) to extend, and the primary plug block (30) to extend.

5. A floating bridge fixing device according to claim 1, characterized in that: The second splicing assembly further comprises a second splicing plate (9) arranged at the middle of one side of the traction plate (18) close to the first inner plate (20); a second splicing groove (12) adapted to the second splicing plate (9) and used for plugging the second splicing plate (9) on the adjacent pontoon plate (1) is arranged at the middle of one end of the pontoon plate (1) away from the accommodating cavity (17); the second splicing groove (12) is connected to the primary slot (14); a third through slot (23) for the second splicing plate (9) to enter and exit is arranged at one end of the pontoon plate (1) close to the accommodating cavity (17); a secondary slot (37) is arranged on the side wall of the second splicing plate (9) away from the traction plate (18); a secondary plug-in block (16) is movably arranged inside the primary slot (14); A force-bearing block (15) is provided at one end of the secondary plug-in block (16) close to the first splicing groove (11), a first groove (24) is provided on the secondary plug-in block (16), a first stop block (25) slidably matched with the first groove (24) is fixedly provided on the inner wall of the primary slot (14), a first spring (26) is provided between a side of the first stop block (25) close to the first splicing groove (11) and an end of the first groove (24) close to the first splicing groove (11), an end of the secondary plug-in block (16) away from the force-bearing block (15) is used for plugging and matching with the secondary slot (37), and is configured so that when the primary plug-in block (30) is fully plugged into the primary slot (14), one end of the secondary plug-in block (16) is just plugged into the secondary slot (37).

6. A floating bridge fixing device according to claim 5, characterized in that: A second inner plate (21) corresponding to the second splicing plate (9) is arranged on one side of the traction plate (18) close to the second splicing plate (9); the second splicing plate (9) is a hollow structure, and the second splicing plate (9) is movably sleeved on the outside of the second inner plate (21); a second limit block (29) is arranged on the side wall of the second splicing plate (9) close to one end of the traction plate (18); a third groove (38) is arranged on the second inner plate (21); a third stop block (39) slidably matched with the third groove (38) is fixedly arranged on the inner wall of the second splicing plate (9); and a third spring (40) is arranged between one side of the third stop block (39) close to the traction plate (18) and one end of the third groove (38) close to the traction plate (18).

7. A floating bridge fixing device according to claim 6, characterized in that: A tertiary splicing assembly is arranged on the secondary splicing assembly, and the tertiary splicing assembly comprises a tertiary plug block (36) arranged at an end of the second inner plate (21) away from the traction plate (18), and a tertiary slot (27) adapted to the tertiary plug block (36) is arranged on a side wall of an end of the secondary plug block (16) away from the force bearing block (15), and the tertiary plug block (36) is used for plugging and matching with the tertiary slot (27).

8. A floating bridge fixing device according to claim 7, characterized in that: A pair of tertiary plug blocks (36) are provided on the second inner plate (21), and the two tertiary plug blocks (36) are respectively used to be plugged into and matched with the tertiary slots (27) on the two secondary plug blocks (16).

9. A floating bridge fixing device according to claim 1, characterized in that: The end of the floating bridge board (1) is provided with a locking assembly for fixing the rotating shaft (5), and the locking assembly comprises a round shell (10) embedded in the fixing seat (4), the inner side of the round shell (10) is movably connected with a locking pin (45), the end of the locking pin (45) away from the rotating shaft (5) is provided with a pull pin (43) extending to the outside of the round shell (10), a fourth spring (44) is provided between the end of the locking pin (45) away from the rotating shaft (5) and the inner wall of the round shell (10), and the end side wall of the rotating shaft (5) is provided with a locking opening (42) adapted to the locking pin (45), and is configured so that when the guardrail (3) is in a vertical state, the locking opening (42) matches the locking pin (45).

10. A floating bridge fixing device according to claim 9, characterized in that: The pull pin (43) is T-shaped, and the fourth spring (44) is located on the outside of one end of the pull pin (43) close to the locking pin (45).

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