An overlapping bridge component for a water conservancy canal

Abstract

The present invention belongs to the field of water channel lapping bridges, and particularly relates to a lapping bridge component for water conservancy water channels, which comprises a support frame, a deck board, and a locking mechanism. The locking mechanism is fixedly installed on the water channel bank, and the support frame connecting the two sides of the water channel is installed on the locking mechanism. A deck board that is convenient for disassembly is laid on the support frame; compared with the lapping boards that are distributed at relatively long distances on traditional water channels, the present invention can cross the water channel at any part of the water channel, has a light weight, is convenient to operate, and can effectively prevent others from using the present invention to cross the water channel at will, resulting in the crops of one's own being trampled by others at will; in addition, the deck board in the present invention can be disassembled, collected, stored, and kept at any time, avoiding the deck board being wetted by rainwater when not in use and reducing its service life.

Description

Technical Field

[0001] The present invention belongs to the field of water channel lapping bridges, and particularly relates to a lapping bridge assembly for water conservancy water channels. Background Art

[0002] In water channel irrigation, in order to facilitate people's movement between both sides of the water channel, simple lapping bridges are generally built at intervals on the water channel; however, during specific use, due to inappropriate positions of the lapping bridges already built on the water channel, farmers need to take a long detour to pass through the water channel via the nearest lapping bridge, or build a simple lapping board at their own expense for use during the small time period when they irrigate their fields; at the same time, the self-built lapping board is very likely to be used by others for passage, resulting in the trampling of nearby crops by the passers-by, thus causing losses. Moreover, considering the durability of the lapping bridge during the self-building process, relatively heavy steel is generally used, which makes the lapping bridge made of steel as private property inconvenient to move and disassemble over a long distance and prone to rust under rain erosion.

[0003] Considering the anti-corrosion and rust prevention of the lapping bridge and its easy disassembly and assembly, it is necessary to design an easy-to-disassemble lapping bridge with anti-corrosion, rust prevention and preventing others from using it casually.

[0004] The present invention designs a lapping bridge assembly for water conservancy water channels to solve the above problems. Summary of the Invention

[0005] To solve the above-mentioned defects in the prior art, the present invention discloses a lapping bridge assembly for water conservancy water channels, which is implemented by the following technical solutions.

[0006] In the description of the present invention, it should be noted that the terms "inner", "outer", "upper", "lower", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for differential description and cannot be understood as indicating or implying relative importance.

[0007] A lapping bridge assembly for water conservancy water channels includes a support frame, a paving board, and a locking mechanism. The locking mechanism is fixedly installed on the bank of the water channel, and the support frame connecting both banks of the water channel is installed on the locking mechanism. A paving board that is convenient for disassembly is laid on the support frame.

[0008] The above lock mechanism includes a housing, shaft A, a limit wheel, swing rod A, a limit hook, shaft B, a scroll spring A, baffle A, baffle B, a helical spring A, a U-shaped seat, swing rod B, a friction pad, shaft C, a slider, a slide bar, a helical spring C, a helical spring B, a retractable plate, an outer plate, an inner plate, a helical spring D, a connecting rod, a rack, a gear, shaft D, a door panel, a slide seat, a scroll spring C, a scroll spring B. Among them, shaft A that rotates and mates with circular groove B on the housing is fixedly installed on the bank of the water channel, and there is no relative rotation between shaft A and the water channel; the limit wheel located inside the housing is fixedly installed on shaft A, and the housing is fixedly connected to the support frame; a vertical shaft B rotates and mates inside the housing, and two scroll springs A for resetting it are symmetrically installed at both ends of shaft B; swing rod A is installed on shaft B, and one end of swing rod A has a limit hook that mates with two limit grooves on the rim of the limit wheel with a 90-degree arc distance between them.

[0009] Baffle B slides horizontally inside the housing, and a helical spring A for resetting it is installed on baffle B; a U-shaped seat is installed on the side of baffle B; swing rod B is hinged between the two branches of the U-shaped seat through a vertical shaft C, and swing rod B is located between baffle B and swing rod A; two scroll springs B for resetting swing rod B are installed on shaft C; baffle A is installed between swing rod B and swing rod A; a friction pad that mates with the side of baffle A is installed on the side of swing rod B; a slider slides inside the housing along the direction parallel to the movement of baffle B, and a helical spring B for resetting it is installed on the slider; a slide bar slides and mates in the chute D on the side of the slider along the direction perpendicular to the movement of the slider, and a helical spring C for resetting it is installed on the slide bar; the slide bar is located within the opening range of the housing; baffle B is located between the slider and swing rod B; the slide bar cooperates with swing rod A through several chutes C on the side of baffle B and chute B on the side of baffle A.

[0010] A slide seat slides inside the housing along the direction parallel to the movement of the slider, and a connecting rod is installed on the slide seat. A rack and a retractable plate are respectively installed at both ends of the connecting rod; a helical spring D connecting its inner plate and outer plate is provided inside the retractable plate, and the exposed end of the inner plate of the retractable plate has an inclined surface that mates with the end of swing plate B; a door panel is installed through a vertical shaft D that rotates and mates with the opening of the housing, and the gear installed on shaft D meshes with the rack; two scroll springs C for rotational resetting are symmetrically installed on shaft D.

[0011] As a further improvement of the present technology, both ends of the above-mentioned shaft D are respectively in rotational fit with two circular grooves A in the opening of the housing. Ring grooves A are formed on the inner walls of the two circular grooves A; two scroll springs C are respectively located in the two ring grooves A; one end of each scroll spring C is connected to the inner wall of the corresponding ring groove A, and the other end is connected to the shaft D; both ends of the shaft B are respectively in rotational fit with two circular grooves C symmetrically distributed on the top and bottom surfaces of the housing; ring grooves B are formed on the inner walls of the two circular grooves C; two scroll springs A are respectively located in the two ring grooves B; one end of each scroll spring A is connected to the inner wall of the corresponding ring groove B, and the other end is connected to the shaft B; both ends of the shaft C are respectively in rotational fit with circular grooves D on the two branches of the U-shaped seat; ring grooves C are formed on the inner walls of the two circular grooves D; two scroll springs B are respectively located in the two ring grooves C; one end of each scroll spring B is connected to the inner wall of the corresponding ring groove C, and the other end is connected to the shaft C. The ring groove A provides a accommodating space for the scroll spring C, reducing the space occupied by the scroll spring on the shaft D, thereby effectively reducing the length of the shaft D; the ring groove B provides a accommodating space for the scroll spring A; the ring groove C provides a accommodating space for the scroll spring B, reducing the space occupied by the scroll spring C on the shaft C, making the fit between the shaft C and the U-shaped seat more compact, and enabling the swing rod B between the two branches of the U-shaped seat to have a larger width, thereby increasing the strength of the swing rod B.

[0012] As a further improvement of the present technology, a guide rod is installed at one end of the above-mentioned slider, and the guide rod slides in the chute A on the side surface of the housing; the helical spring B is nested on the guide rod; one end of the helical spring B is connected to the slider, and the other end is connected to the inner wall of the housing. The guide rod provides support for the helical spring B, preventing the helical spring B from bending during compression and causing the reset of the slider to fail.

[0013] As a further improvement of the present technology, two trapezoidal guide blocks A are symmetrically installed on the upper and lower surfaces of the above-mentioned baffle B, and the two trapezoidal guide blocks A respectively slide in two trapezoidal guide grooves A on the inner wall of the housing. The cooperation between the trapezoidal guide block A and the trapezoidal guide groove A plays a positioning and guiding role in the sliding of the baffle B in the housing. Two trapezoidal guide blocks B are symmetrically installed on the upper and lower surfaces of the slider, and the two trapezoidal guide blocks B respectively slide in two trapezoidal guide grooves B on the inner wall of the housing. The cooperation between the trapezoidal guide block B and the trapezoidal guide groove B plays a positioning and guiding role in the sliding of the slider in the housing. A trapezoidal guide block C is installed on the sliding seat, and the trapezoidal guide block C slides in the trapezoidal guide groove C on the inner wall of the housing. The cooperation between the trapezoidal guide block C and the trapezoidal guide groove C plays a positioning and guiding role in the sliding of the sliding seat in the housing. Two guide blocks are symmetrically installed on the inner plate of the telescopic plate, and the two guide blocks respectively slide in two guide grooves on the inner wall of the outer plate of the telescopic plate. The cooperation between the guide block and the guide groove plays a positioning and guiding role in the sliding of the inner plate in the outer plate, and at the same time ensures that the helical spring D in the outer plate is always in a compressed state, so as to facilitate the complete reset of the inner plate relative to the outer plate during telescoping.

[0014] As a further improvement of the present technology, a handle for facilitating the opening thereof is installed on the above-mentioned door panel; a support block is installed on the side surface of the end of the swing rod B, and a friction pad is installed on the side surface of the support block; one end of the sliding rod is installed with a pressing plate; the spiral spring C is nested on the sliding rod; one end of the spiral spring C is connected to the slider, and the other end is connected to the pressing plate.

[0015] Compared with the traditional water channel lapping bridge, as a private item, the present invention can be built or detached from the water channel bank at any time according to needs, avoiding the crops on both sides of the water channel from being trampled at will by people around for taking shortcuts; meanwhile, during the peak period when the present invention is frequently used, when the user uses it, the user unlocks the lock mechanism to swing the present invention and build it above the water surface of the water channel to facilitate the user's activities between both sides of the water channel; when not in use, the user unlocks the lock mechanism and then withdraws the present invention from the water surface of the water channel to prevent the surrounding crops from being trampled when others borrow the path when the user is temporarily not beside the water channel. Only the owner of the lock mechanism in the present invention knows how to unlock it, and others do not know the specific unlocking method, thereby avoiding the phenomenon that the crops on both sides of the water channel are trampled at will by others when the owner of the present invention is not on the site. Compared with the lapping plates with a relatively long distance interval distribution on the traditional water channel, the present invention can cross the water channel at any part of the water channel, has a light weight and is convenient to operate, and can effectively prevent others from using the present invention to cross the water channel at will and causing the crops of one's own to be trampled at will by others; in addition, the paving board in the present invention can be disassembled and stored at any time to avoid the paving board being wetted by rain when not in use and reducing its service life. The present invention has a simple structure and good use effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 are schematic diagrams of two states of the cooperation between the present invention and the water channel.

[0017] Figure 2 is a schematic sectional view of the cooperation between the present invention and the water channel.

[0018] Figure 3 is a schematic diagram of the paving board.

[0019] Figure 4 is a schematic diagram of the cooperation between the lock mechanism and the support frame.

[0020] Figure 5 is a schematic diagram of the lock mechanism.

[0021] Figure 6 is a schematic overall sectional view of the lock mechanism.

[0022] Figure 7 is a schematic diagram of the housing.

[0023] Figure 8It is a schematic cross-sectional view of trapezoidal guide grooves A, B, and C and annular groove B inside the housing.

[0024] Figure 9 It is a schematic cross-sectional view of circular groove A and annular groove A inside the housing.

[0025] Figure 10 It is a schematic cross-sectional view of the cooperation among the housing, shaft B, and scroll spring A.

[0026] Figure 11 It is a schematic cross-sectional view of the cooperation among the housing, shaft D, and scroll spring C.

[0027] Figure 12 It is a schematic cross-sectional view of the cooperation among the U-shaped seat, shaft C, and scroll spring B.

[0028] Figure 13 It is a schematic cross-sectional view of the cooperation between the housing and the sliding seat.

[0029] Figure 14 It is a schematic diagram of the limit wheel.

[0030] Figure 15 It is a schematic diagram of the cooperation among swing rod A, shaft B, and scroll spring A.

[0031] Figure 16 It is a schematic diagram and its cross-sectional view of the cooperation between baffle B and the U-shaped seat.

[0032] Figure 17 It is a schematic cross-sectional view of the cooperation among the slider, slide bar, and helical spring C.

[0033] Figure 18 It is a schematic diagram of the slider.

[0034] Figure 19 It is a schematic diagram of the cooperation among the rack, connecting rod, and telescopic plate.

[0035] Figure 20 It is a schematic cross-sectional view of the telescopic plate.

[0036] Names of the reference numerals in the figure: 1, water channel; 2, support frame; 3, floor board; 4, locking mechanism; 5, housing; 6, opening; 7, circular groove A; 8, annular groove A; 9, circular groove B; 10, sliding groove A; 11, circular groove C; 12, annular groove B; 13, trapezoidal guide groove A; 14, trapezoidal guide groove B; 15, trapezoidal guide groove C; 16, shaft A; 17, limiting wheel; 18, limiting groove; 19, swing rod A; 20, limiting hook; 21, shaft B; 22, volute spring A; 23, baffle A; 24, sliding groove B; 25, baffle B; 26, sliding groove C; 27, trapezoidal guide block A; 28, helical spring A; 29, U-shaped seat; 30, circular groove D; 31, annular groove C; 32, swing rod B; 33, support block; 34, friction pad; 35, shaft C; 36, slider; 37, sliding groove D; 38, trapezoidal guide block B; 39, slide bar; 40, pressing plate; 41, helical spring C; 42, helical spring B; 43, guide rod; 44, telescopic plate; 45, outer plate; 46, guide groove; 47, inner plate; 48, inclined surface; 49, guide block; 50, helical spring D; 51, connecting rod; 52, rack; 53, gear; 54, shaft D; 55, door panel; 56, handle; 57, sliding seat; 58, trapezoidal guide block C; 59, volute spring C; 60, volute spring B. Detailed implementation mode

[0037] The attached drawings are all schematic diagrams of the implementation of the present invention for facilitating the understanding of the structural operation principle. The specific product structure and proportional dimensions can be determined according to the use environment in combination with conventional technologies.

[0038] As Figure 1 、 2 、3 shown, it includes a support frame 2, a floor board 3, and a locking mechanism 4. Among them, the locking mechanism 4 is installed on the bank of the water channel 1, and the support frame 2 connecting the two banks of the water channel 1 is installed on the locking mechanism 4; a floor board 3 that is convenient to disassemble is laid on the support frame 2.

[0039] As Figure 5 、 6 shown, the above-mentioned locking mechanism 4 includes a housing 5, a shaft A 16, a limiting wheel 17, a swing rod A 19, a limiting hook 20, a shaft B 21, a volute spring A 22, a baffle A 23, a baffle B 25, a helical spring A 28, a U-shaped seat 29, a swing rod B 32, a friction pad 34, a shaft C 35, a slider 36, a slide bar 39, a helical spring C 41, a helical spring B 42, a telescopic plate, an outer plate 45, an inner plate 47, a helical spring D 50, a connecting rod 51, a rack 52, a gear 53, a shaft D 54, a door panel 55, a sliding seat 57, a volute spring C 59, and a volute spring B 60. Among them, as Figure 2 shown, the shaft A 16 that is rotationally matched with the circular groove B 9 on the housing 5 is installed on the bank of the water channel 1, and there is no relative rotation between the shaft A 16 and the water channel 1; as Figure 4 、 6, as shown in Fig. 13, the limit wheel 17 located inside the housing 5 is fixedly installed on the shaft A16, and the housing 5 is fixedly connected to the support frame 2; as Figure 6 , 10 shown, a vertical shaft B21 is rotatably fitted inside the housing 5, and two scroll springs A22 for resetting it are symmetrically installed at both ends of the shaft B21; as Figure 6 , 14 shown in Fig. 15, a swing rod A19 is installed on the shaft B21, and one end of the swing rod A19 has a limit hook 20 that cooperates with two limit slots 18 on the rim of the limit wheel 17 with a 90-degree arc distance.

[0040] As Figure 6 shown, a baffle B25 slides horizontally inside the housing 5, and a spiral spring A28 for resetting it is installed on the baffle B25; as Figure 6 , 16 shown, a U-shaped seat 29 is installed on the side surface of the baffle B25; a swing rod B32 is hinged between the two branches of the U-shaped seat 29 through a vertical shaft C35, and the swing rod B32 is located between the baffle B25 and the swing rod A19; as Figure 12 shown, two scroll springs B60 for resetting the swing rod B32 are installed on the shaft C35; as Figure 6 shown, a baffle A23 is installed between the swing rod B32 and the swing rod A19; a friction pad 34 that cooperates with the side surface of the baffle A23 is installed on the side surface of the swing rod B32; as Figure 6 , 17 shown in Fig. 18, a slider 36 slides inside the housing 5 along the direction parallel to the movement direction of the baffle B25, and a spiral spring B42 for resetting it is installed on the slider 36; a slide bar 39 slides in the chute D37 on the side surface of the slider 36 along the direction perpendicular to the movement direction of the slider 36, and a spiral spring C41 for resetting it is installed on the slide bar 39; as Figure 6 , 7 shown in Fig. 8, the slide bar 39 is located within the opening 6 of the housing 5; as Figure 6 shown, the baffle B25 is located between the slider 36 and the swing rod B32; as Figure 6 , 16 shown, the slide bar 39 cooperates with the swing rod A19 through a plurality of chutes C26 on the side surface of the baffle B25 and the chute B24 on the side surface of the baffle A23.

[0041] As Figure 6 , 19 shown, a slide seat 57 slides inside the housing 5 along the direction parallel to the movement direction of the slider 36, a connecting rod 51 is installed on the slide seat 57, and a rack 52 and a telescopic plate 44 are respectively installed at both ends of the connecting rod 51; as Figure 20 shown, a spiral spring D50 connecting the inner plate 47 and the outer plate 45 is provided inside the telescopic plate 44; as Figure 6 , 20As shown, the exposed end of the inner plate 47 of the telescopic plate 44 has an inclined surface 48 that mates with the end of the swing plate B; as Figure 6 、 9 、11 shown, a door panel 55 is installed in the opening 6 of the housing 5 through a vertical shaft D54 that rotates in cooperation with it. A gear 53 installed on the shaft D54 meshes with a rack 52; as Figure 11 shown, two volute springs C59 for rotating and resetting the shaft D54 are symmetrically installed on the shaft D54.

[0042] As Figure 9 、 11 shown, both ends of the above-mentioned shaft D54 are respectively rotationally fitted with two circular grooves A7 in the opening 6 of the housing 5. Ring grooves A8 are opened on the inner walls of the two circular grooves A7; the two volute springs C59 are respectively located in the two ring grooves A8; one end of the volute spring C59 is connected to the inner wall of the corresponding ring groove A8, and the other end is connected to the shaft D54; as Figure 8 、 10 shown, both ends of the shaft B21 are respectively rotationally fitted with two circular grooves C11 symmetrically distributed on the top and bottom surfaces of the housing 5; ring grooves B12 are opened on the inner walls of the two circular grooves C11; the two volute springs A22 are respectively located in the two ring grooves B12; one end of the volute spring A22 is connected to the inner wall of the corresponding ring groove B12, and the other end is connected to the shaft B21; as Figure 12 、 16 shown, both ends of the shaft C35 are respectively rotationally fitted with circular grooves D30 on the two branches of the U-shaped seat 29; ring grooves C31 are opened on the inner walls of the two circular grooves D30; the two volute springs B60 are respectively located in the two ring grooves C31; one end of the volute spring B60 is connected to the inner wall of the corresponding ring groove C31, and the other end is connected to the shaft C35. The ring groove A8 provides a receiving space for the volute spring C59, reducing the space occupied by the volute spring on the shaft D54, thereby effectively reducing the length of the shaft D54; the ring groove B12 provides a receiving space for the volute spring A22; the ring groove C31 provides a receiving space for the volute spring B60, reducing the space occupied by the volute spring C59 on the shaft C35, making the fit between the shaft C35 and the U-shaped seat 29 more compact, and making the swing rod B32 located between the two branches of the U-shaped seat 29 have a larger width, thereby increasing the strength of the swing rod B32.

[0043] As Figure 6 、 7 、17 shown, one end of the above-mentioned slider 36 is installed with a guide rod 43, and the guide rod 43 slides in the chute A10 on the side of the housing 5; a helical spring B42 is nested on the guide rod 43; one end of the helical spring B42 is connected to the slider 36, and the other end is connected to the inner wall of the housing 5. The guide rod 43 provides support for the helical spring B42, preventing the helical spring B42 from bending during compression and causing the reset of the slider 36 to fail.

[0044] AsFigure 8 , 12 As shown in FIGS. 16, two trapezoidal guide blocks A27 are symmetrically installed on the upper and lower surfaces of the baffle B25. The two trapezoidal guide blocks A27 slide respectively in two trapezoidal guide grooves A13 on the inner wall of the housing 5. The cooperation between the trapezoidal guide block A27 and the trapezoidal guide groove A13 plays a role in positioning and guiding the sliding of the baffle B25 in the housing 5. As Figure 8 , 12 As shown in FIGS. 17, two trapezoidal guide blocks B38 are symmetrically installed on the upper and lower surfaces of the slider 36. The two trapezoidal guide blocks B38 slide respectively in two trapezoidal guide grooves B14 on the inner wall of the housing 5. The cooperation between the trapezoidal guide block B38 and the trapezoidal guide groove B14 plays a role in positioning and guiding the sliding of the slider 36 in the housing 5. As Figure 8 , 13 As shown in FIGS. 19, a trapezoidal guide block C58 is installed on the slide base 57. The trapezoidal guide block C58 slides in a trapezoidal guide groove C15 on the inner wall of the housing 5. The cooperation between the trapezoidal guide block C58 and the trapezoidal guide groove C15 plays a role in positioning and guiding the sliding of the slide base 57 in the housing 5. As Figure 20 As shown, two guide blocks 49 are symmetrically installed on the inner plate 47 of the telescopic plate 44. The two guide blocks 49 slide respectively in two guide grooves 46 on the inner wall of the outer plate 45 of the telescopic plate 44. The cooperation between the guide block 49 and the guide groove 46 plays a role in positioning and guiding the sliding of the inner plate 47 in the outer plate 45, and at the same time ensures that the coil spring D50 in the outer plate 45 is always in a compressed state, so as to facilitate the complete reset of the inner plate 47 relative to the outer plate 45 during telescoping.

[0045] As Figure 5 , 6 shown, a handle 56 for facilitating the opening of the above-mentioned door panel 55 is installed on the door panel 55; as Figure 6 shown, a support block 33 is installed on the side surface of the end of the swing rod B32, and a friction pad 34 is installed on the side surface of the support block 33; as Figure 6 , 17 shown, a pressing plate 40 is installed at one end of the sliding rod 39; a coil spring C41 is nested on the sliding rod 39; one end of the coil spring C41 is connected to the slider 36, and the other end is connected to the pressing plate 40.

[0046] In the present invention, the distance between the inner plate 47 of the telescopic plate 44 and the baffle A23 is slightly smaller than the sum of the thicknesses of the support block 33 and the friction pad 34, ensuring that when the support block 33 is driven by the swing rod B32 to cross the inner plate 47, the friction pad 34 is squeezed and deformed so that the support block 33 and the friction pad 34 are completely located between the inner plate 47 and the baffle A23, making the inner plate 47 restrict the reset of the support block 33 following the back swing of the swing rod B32, thereby ensuring an effective friction is formed between the friction pad 34 and the baffle A23, thus restricting the movement of the baffle A23 under misoperation, and further preventing the lock mechanism 4 from being unlocked when the present invention is misoperated.

[0047] Working process of the present invention: In the initial state, two scroll springs A22 are in a compressed energy storage state. The upper limit hook 20 on the swing rod A19 is located in a limit groove 18 on the rim of the limit wheel 17 to prevent the housing 5 from rotating around the axis A16, thereby restricting the synchronous rotational swing of the support frame 2 with the housing 5 around the axis A16; two scroll springs B60 are in a compressed energy storage state. One end of the swing rod B32 that cooperates with the inner plate 47 of the telescopic plate 44 is in close contact with the baffle B25. The trapezoidal guide block A27 on the baffle B25 is located at the extreme end away from the telescopic plate 44 in the trapezoidal guide groove A13, and the helical spring A28 is pre-stretched for energy storage; the chute B24 on the baffle A23 is located between the two chutes C26 on the baffle B25 that are farthest from the telescopic plate 44; the support block 33 is opposite to the inclined surface 48 on the inner plate 47 of the telescopic plate 44; the door panel 55 is in a closed state, and the distance between the inner plate 47 of the telescopic plate 44 and the support block 33 is in the maximum state; two scroll springs C59 are in a compressed energy storage state.

[0048] When the present invention needs to be used, the exposed end of the axis A16 in the locking mechanism 4 of the present invention is fixedly installed on the bank of the water channel 1, so that the length direction of the support frame 2 is parallel to the water flow direction in the water channel 1, and the support frame 2 is placed flat on the bank of the water channel 1. Pull the handle 56 on the door panel 55 to open the door panel 55. During the opening process of the door panel 55, the door panel 55 drives the axis D54 to rotate synchronously, and the two scroll springs C59 are further compressed for energy storage; the axis D54 drives the gear 53A installed thereon to rotate synchronously, and the gear 53A drives the telescopic plate 44 to move synchronously towards the support block 33 through the rack 52A and the connecting rod 51. When the door panel 55 is completely opened around the axis D54, the inclined surface 48 at the end of the inner plate 47 of the telescopic plate 44 contacts the support block 33, and the inner plate 47 of the telescopic plate 44 shrinks outward into the outer plate 45 to a certain extent under the action of the support block 33, and the helical spring D50 is further compressed for energy storage.

[0049] Then, the user toggles the sliding rod 39 in a direction away from the sliding seat 57. The sliding rod 39 drives the slider 36 to move synchronously, and the helical spring B42 is compressed for energy storage. When the sliding rod 39 drives the slider 36 to slide to the extreme position in a direction away from the sliding seat 57 and then toggles slightly back by a small distance, the rod end of the sliding rod 39 is completely opposite to the chute C26 on the baffle B25 that is farthest from the telescopic plate 44. At this time, press the pressing plate 40 in a direction perpendicular to the sliding direction of the slider 36. The pressing plate 40 drives the rod end of the sliding rod 39 to quickly pass through the chute C26 on the baffle B25 that is farthest from the telescopic plate 44, and the helical spring C41 is compressed for energy storage. Then, toggle the sliding rod 39 back by a small distance with the hand. The sliding rod 39 drives the baffle B25 to move synchronously. The baffle B25 drives the support block 33 through the U-shaped seat 29, the shaft C35, and the swing rod B32 to further compress the inner plate 47 of the telescopic plate 44. The helical spring D50 inside the telescopic plate 44 is further compressed for energy storage again, and the helical spring A28 is further stretched for energy storage, so that the rod end of the sliding rod 39 is completely opposite to the chute B24 on the baffle A23. Then, continue to press the pressing plate 40 with the hand. The pressing plate 40 drives the sliding rod 39 to continue to quickly pass through the chute B24 on the baffle A23, and the helical spring C41 is further compressed for energy storage again.

[0050] Continue to press the pressing plate 40. The pressing plate 40 drives the sliding rod 39 passing through the chute B24 to act quickly on the swing rod A19. The helical spring C41 continues to be compressed for energy storage, so that the swing rod A19 swings in a direction away from the limit wheel 17 around the central axis of the shaft B21. The limit hook 20 on the swing rod A19 quickly disengages from the corresponding limit groove 18 on the limit wheel 17 and releases the rotational swing of the housing 5 around the shaft A16. The locking mechanism 4 is completely unlocked at this time.

[0051] Then, start to push the support frame 2 to swing around the shaft A16 in a direction across the water surface of the water channel 1. The support frame 2 drives the housing of the locking mechanism 4 to rotate and swing around the shaft A16 and relative to the shaft A16. The housing 5 drives all the components installed therein to swing synchronously around the shaft A16. The limit hook 20 of the swing rod A19 moves around the shaft A16 towards another limit groove 18 on the limit wheel 17. During the process of the locking mechanism 4 receiving and driving the housing 5 and all the components installed in the housing 5 to swing in a direction across the water surface of the water channel 1 through the support frame 2, the forces acting on the pressing plate 40 and the door panel 55 are removed successively and the support frame 2 is continuously pushed to swing in a direction across the water surface of the water channel 1.

[0052] When the force applied to the pressing plate 40 is removed, under the reset action of the helical spring C41, the slide rod 39 instantaneously disengages from the chute B24 on the baffle A23 and the chute C26 on the baffle B25 and is completely reset relative to the slider 36. At the same time, under the reset action of the helical spring A28, the baffle B25 drives the U-shaped seat 29, the swing rod B32, the support block 33 and the friction pad 34 to be completely reset relative to the housing 5. The support block 33 still abuts against the inclined surface 48 at the end of the inner plate 47 of the telescopic plate 44, and the inner plate 47 is still partially compressed by the support block 33 in the outer plate 45; under the reset action of the helical spring B42, the slider 36 is completely reset relative to the housing 5.

[0053] When the force applied to the door panel 55 is removed, under the reset action of the two scroll springs C59, the shaft D54 drives the door panel 55 to close quickly. At the same time, the shaft D54 drives the gear 53A to rotate synchronously. The gear 53A drives the telescopic plate 44 to be quickly reset through a series of transmissions. The inclined surface 48 at the end of the inner plate 47 of the telescopic plate 44 quickly disengages from the support block 33 and is completely reset relative to the outer plate 45 under the reset action of the helical spring D50.

[0054] During the process of swinging the support frame 2 in the direction across the water surface of the water channel 1, since the slide rod 39 acting on the swing rod A19 has disengaged from the swing rod A19, the limit hook 20 on the swing rod A19 abuts against the rim surface of the limit wheel 17 and moves towards the next limit groove 18 under the reset action of the two scroll springs A22. When the support frame 2 completely straddles the water surface of the water channel 1, the support frame 2 just swings 90 degrees around the shaft A16, and the limit hook 20 on the swing rod A19 just meets another limit groove 18; under the reset action of the two scroll springs A22, the shaft B21 drives the limit hook 20 to instantaneously engage into the corresponding limit groove 18 through the swing rod A19 and resumes the restriction on the rotation of the housing 5 relative to the shaft A16; so that the support frame 2 straddling the water channel 1 will not swing during use, ensuring that the support frame 2 always straddles the water channel 1 during use, and further ensuring the safety of the user during use.

[0055] When a person wants to reach the other side of the water channel 1 through the present invention, first lay the paving board 3 on the support frame 2, and then step on the paving board 3 to reach the other side of the water channel 1. The paving board is composed of multiple wooden boards connected in sequence by soft ropes and can be rolled up when not in use, which is convenient for transportation and storage.

[0056] When the support frame 2 and the deck board 3 spanning the water channel 1 are no longer in use and the support frame 2 needs to be recycled, first recycle the deck board 3 and then repeat the above operation process of the locking mechanism 4 to unlock the locking mechanism 4, so that the limit hook 20 on the swing rod A19 is completely disengaged from the corresponding limit groove 18, and then swing the support frame 2 back around the shaft A16. When the support frame 2 completely swings back from the state of spanning the water surface of the water channel 1 to the initial state, the support frame 2 just swings back 90 degrees around the shaft A16, and the limit hook 20 on the swing rod A19 just meets the limit groove 18 that cooperates with it in the initial state; under the reset action of the two scroll springs A22, the shaft B21 drives the limit hook 20 through the swing rod A19 to instantaneously embed into the corresponding limit groove 18 and restore the restriction on the rotation of the housing 5 relative to the shaft A16; so that the support frame 2 in the initial state will not swing under the blind operation of others, ensuring that the present invention is only used by the owner and avoiding the crops on both sides of the water channel 1 from being trampled due to others using the present invention to pass through.

[0057] If someone else uses the present invention in its initial state when the owner is absent, when the other person opens the door panel 55, the door panel 55 drives the telescopic plate 44 to move to the support block 33 through a series of transmissions, and the inner plate 47 of the telescopic plate 44 shrinks a certain distance into the outer plate 45 under the action of the support block 33, and the spiral spring D50 is further compressed for energy storage; then the other person will blindly press the pressing plate 40 or push the sliding rod 39 to move; under the blind pressing and pushing, the pressing plate 40 drives the sliding rod 39 into any one of the sliding grooves C26 on the baffle B25 and it is impossible to be the sliding groove C26 on the baffle B25 that is farthest from the telescopic plate 44, and the spiral spring C41 is compressed for energy storage, the spiral spring B42 deforms for energy storage, and the spiral spring A28 deforms for energy storage; under the continuous pushing of the sliding rod 39 passing through any sliding groove C26 on the baffle B25, the sliding rod 39 drives the swing rod B32 hinged to the side of the baffle B25 to swing rapidly around the shaft C35 towards the baffle A23; the swing rod A19 drives the support block 33 to act on the inclined surface 48 of the inner plate 47 of the telescopic plate 44, so that the inner plate 47 of the telescopic plate 44 continues to shrink into the outer plate 45, and the spiral spring D50 is further compressed for energy storage; when the support block 33 quickly crosses the end of the inclined surface 48 of the inner plate 47, the friction pad 34 has contacted the baffle A23 and is pressurized and deformed; under the reset action of the spiral spring D50, the inner plate 47 of the telescopic plate 44 instantaneously resets relative to the outer plate 45 and forms a restriction on the support block 33 with the swing back of the swing rod B32, so that the friction pad 34 maintains continuous extrusion and friction cooperation with the baffle A23; at this time, when someone manually pushes the sliding rod 39 to drive the baffle B25 to move again, due to the large friction between the friction pad 34 and the baffle A23, the support block 33 prevents the sliding rod 39 from continuing to drive the slider 36 to move through the swing rod B32, the U-shaped seat 29 and the baffle B25, thereby preventing the operation of the present invention by others who are not the owner from being terminated, and the locking mechanism 4 is not unlocked; the present invention cannot continue this operation, and others who are not the owner will give up using the present invention, thereby avoiding others from casually using the present invention to pass through the water channel 1 when the owner is absent, resulting in trampling on the crops on both sides of the water channel 1.

[0058] When others who are not the owner remove the force acting on the pressing plate 40, the slide rod 39 is reset relative to the slider 36 and disengages from the chute C26 under the reset action of the helical spring C41, and the slider 36 is reset under the reset action of the helical spring B42; due to the interaction between the friction pad 34 and the baffle A23, the baffle B25 will not be reset temporarily under the reset action of the helical spring A28; when others who are not the owner remove the force acting on the door panel 55, under the reset action of the two scroll springs C59, the door panel 55 drives the telescopic plate 44 to be completely reset through a series of transmissions and releases the restriction on the swing of the support block 33 with the swing rod B32; under the reset action of the two scroll springs B60, the swing rod B32 drives the support block 33 and the friction pad 34 to be instantaneously reset relative to the baffle B25; under the reset action of the helical spring A28, the baffle B25 drives the swing rod B32, the support block 33 and the friction pad 34 to be completely reset through a series of transmissions.

[0059] When the service life of the present invention is completely over, it can be disassembled from the side bank of the water channel 1 by detaching the shaft A16 from the side bank of the water channel 1 and removing the present invention from the side bank of the water channel 1.

[0060] The shaft A in the present invention can be fixed at a fixed position of the water channel throughout its entire life cycle, so that the bridge can be placed beside the water channel for a long time, and thus the bridge is completely fixed beside the water channel. Because of the added anti-corrosion structure, it still has a certain corrosion resistance.

[0061] In summary, the beneficial effects of the present invention are as follows: As a private item, the present invention can be erected or disassembled from the water channel 1 at any time according to needs, avoiding the surrounding crops on both sides of the water channel 1 from being trampled casually by people using the present invention as a shortcut; at the same time, during the peak period when the present invention is frequently used, when the user uses it, the user unlocks the lock mechanism 4 to swing the present invention and erect it above the water surface of the water channel 1 to facilitate the user's activities between both sides of the water channel 1; when not in use, the user unlocks the lock mechanism 4 and then withdraws the present invention from the water surface of the water channel 1 to prevent the surrounding crops from being trampled when others take a detour when the user is temporarily not beside the water channel 1. Only the owner of the lock mechanism 4 in the present invention knows how to unlock it, and others do not know the specific unlocking method, thus avoiding the phenomenon that the crops on both sides of the water channel 1 are trampled when others use the present invention casually when the owner of the present invention is not on site. Compared with the traditional overlapping plates distributed at intervals at a relatively long distance on the water channel 1, the present invention can cross the water channel 1 at any part of the water channel 1, is relatively light in weight and convenient to operate, and can effectively prevent others from using the present invention to cross the water channel 1 casually and causing the user's own crops to be trampled casually by others; in addition, the paving board 3 in the present invention can be disassembled at any time for storage and preservation, avoiding the paving board 3 from being wetted by rain when not in use and reducing its service life.

Claims

1. A lapping bridge component for a water conservancy canal, characterized in that: It includes a support frame, a decking board, and a locking mechanism. The locking mechanism is fixedly installed on the bank of the water channel, and the support frame connecting the two banks of the water channel is installed on the locking mechanism; a conveniently detachable decking board is laid on the support frame; The above-mentioned locking mechanism includes a housing, shaft A, a limit wheel, swing rod A, a limit hook, shaft B, a volute spring A, baffle A, baffle B, a helical spring A, a U-shaped seat, swing rod B, a friction pad, shaft C, a slider, a slide bar, a helical spring C, a helical spring B, a retractable plate, an outer plate, an inner plate, a helical spring D, a connecting rod, a rack, a gear, shaft D, a door panel, a sliding seat, a volute spring C, and a volute spring B. Among them, shaft A that rotates and mates with circular groove B on the housing is fixedly installed on the bank of the water channel, and there is no relative rotation between shaft A and the water channel; the limit wheel located inside the housing is fixedly installed on shaft A, and the housing is fixedly connected to the support frame; a vertical shaft B rotates and mates inside the housing, and two volute springs A for resetting it are symmetrically installed at both ends of shaft B; a swing rod A is installed on shaft B, and one end of swing rod A has a limit hook that mates with two limit grooves on the rim of the limit wheel with a 90-degree arc distance; A baffle B slides horizontally inside the housing, and a helical spring A for resetting it is installed on baffle B; a U-shaped seat is installed on the side of baffle B; a swing rod B is hinged between the two branches of the U-shaped seat through a vertical shaft C, and swing rod B is located between baffle B and swing rod A; two volute springs B for resetting swing rod B are installed on shaft C; a baffle A is installed between swing rod B and swing rod A; a friction pad that mates with the side of baffle A is installed on the side of swing rod B; a slider slides inside the housing along the direction parallel to the movement of baffle B, and a helical spring B for resetting it is installed on the slider; a slide bar slides and mates in the chute D on the side of the slider along the direction perpendicular to the movement of the slider, and a helical spring C for resetting it is installed on the slide bar; the slide bar is located within the opening range of the housing; baffle B is located between the slider and swing rod B; the slide bar is mated with swing rod A through several chutes C on the side of baffle B and chute B on the side of baffle A; A sliding seat slides inside the housing along the direction parallel to the movement of the slider, and a connecting rod is installed on the sliding seat. A rack and a telescopic plate are respectively installed at both ends of the connecting rod; a helical spring D connecting its inner plate and outer plate is provided inside the telescopic plate, and the exposed end of the inner plate of the telescopic plate has an inclined surface that mates with the end of the swing plate B; a door panel is installed in the opening of the housing through a vertical shaft D that rotates and mates with it, and the gear installed on shaft D meshes with the rack; two volute springs C for rotating and resetting it are symmetrically installed on shaft D; Both ends of the above-mentioned shaft D are rotatably fitted with two circular grooves A in the opening of the housing. Ring grooves A are provided on the inner walls of the two circular grooves A; two scroll springs C are respectively located in the two ring grooves A; one end of the scroll spring C is connected to the inner wall of the corresponding ring groove A, and the other end is connected to the shaft D; both ends of the shaft B are rotatably fitted with two circular grooves C symmetrically distributed on the top and bottom surfaces of the housing; Ring grooves B are provided on the inner walls of the two circular grooves C; two scroll springs A are respectively located in the two ring grooves B; one end of the scroll spring A is connected to the inner wall of the corresponding ring groove B, and the other end is connected to the shaft B; both ends of the shaft C are rotatably fitted with circular grooves D on the two branches of the U-shaped seat; Ring grooves C are provided on the inner walls of the two circular grooves D; two scroll springs B are respectively located in the two ring grooves C; one end of the scroll spring B is connected to the inner wall of the corresponding ring groove C, and the other end is connected to the shaft C; One end of the above-mentioned slider is provided with a guide rod, and the guide rod slides in the chute A on the side surface of the housing; the helical spring B is nested on the guide rod; one end of the helical spring B is connected to the slider, and the other end is connected to the inner wall of the housing; Two trapezoidal guide blocks A are symmetrically installed on the upper and lower surfaces of the above-mentioned baffle B, and the two trapezoidal guide blocks A respectively slide in the two trapezoidal guide grooves A on the inner wall of the housing; two trapezoidal guide blocks B are symmetrically installed on the upper and lower surfaces of the slider, and the two trapezoidal guide blocks B respectively slide in the two trapezoidal guide grooves B on the inner wall of the housing; a trapezoidal guide block C is installed on the sliding seat, and the trapezoidal guide block C slides in the trapezoidal guide groove C on the inner wall of the housing; two guide blocks are symmetrically installed on the inner plate of the telescopic plate, and the two guide blocks respectively slide in the two guide grooves on the inner wall of the outer plate of the telescopic plate; A handle for facilitating its opening is installed on the above-mentioned door panel; a support block is installed on the side surface of the end of the swing rod B, and a friction pad is installed on the side surface of the support block; a pressing plate is installed at one end of the sliding rod; the helical spring C is nested on the sliding rod; one end of the helical spring C is connected to the slider, and the other end is connected to the pressing plate.

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