Cable tray structure spanning a valley

Abstract

The present application belongs to the technical field of cable bridge, and discloses a kind of spanning river valley cable bridge structure, including bridge main body, the upper end side wall of bridge main body is fixed with multiple obliquely arranged pull steel cable, the lower end of pull steel cable is fixed with anchoring base, two horizontally arranged main cables are connected on bridge main body, guide wheel for guiding main cable is fixed on bridge main body, further including four groups of temperature follow-up tension adjusting assembly, four groups of limiting locking assembly, four groups of locking force synchronous control assembly and multiple groups of knocking impurity removal assembly.The present application can automatically compensate the length of main cable according to ambient temperature, synchronously realize the linkage unlocking and resetting of locking mechanism, and also can automatically remove the impurities of cable body with the help of wind power, effectively solve the problems of unstable main cable tension, blocked adjustment and overload of impurity accumulation of spanning river bridge in tropical monsoon mountainous area, with high overall automation degree, energy saving and environmental protection, and suitable for remote unattended working conditions.

Description

Technical Field

[0001] This invention belongs to the field of cable tray technology, and in particular relates to a cable tray structure that spans a river valley. Background Technology

[0002] With the rapid development of new energy power generation technologies, the scale of photovoltaic power plant construction in mountainous areas is constantly expanding. In tropical monsoon mountainous areas, photovoltaic power plants are usually distributed on the slopes on both sides of river valleys, requiring medium-voltage cables to cross the valleys to transmit electricity to step-up substations. Cable tray structures are typically used to cross the valleys.

[0003] Suspension cable trays are a commonly used cable tray structure. When applied in tropical monsoon mountainous areas, where the diurnal temperature range can reach 15℃~20℃, and in extreme cases even exceed 25℃, the linear expansion coefficient of the main cables (galvanized steel strands) of the suspension cable tray is approximately 1.2×10⁻⁶. -5 / ℃, when the temperature rises, the main cable elongates, causing the sag to increase, which can easily fall below the flood control clearance requirements. When the temperature drops, the main cable shortens, causing the tension to increase sharply, which can easily exceed the design bearing capacity of the tower and ground anchor, affecting the stability of the main cable. Therefore, it is necessary to adjust the tension of the main cable. The existing technology mainly relies on manual periodic adjustment of the main cable tension, which cannot respond to temperature changes in a timely manner. Moreover, manual operation is inconvenient in river valley areas, affecting the timeliness of the main cable tension adjustment. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a cable tray structure that spans river valleys.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a cable tray structure spanning a river valley, comprising a main body of the tray, wherein multiple inclined tension cables are fixed to the upper side wall of the main body of the tray, and an anchoring base is fixed to the lower end of the tension cables. Two horizontally arranged main cables are connected to the main body of the tray, and guide wheels for guiding the main cables are fixed to the main body of the tray. The structure also includes four sets of temperature-responsive tension adjustment components, four sets of limit locking components, four sets of locking force synchronous control components, and multiple sets of knocking and impurity removal components. The temperature-following tension adjustment component is fixed to the end of the main cable and self-regulates the tension of the main cable based on changes in ambient temperature. The limiting and locking assembly is fixed to the outer side of the end of the main cable to assist in the positioning of the main cable; The locking force synchronous control component is driven and installed in the temperature follow-up tension force adjustment component and is connected to the limit locking component, so as to synchronously unlock the limit locking component when the temperature follow-up tension force adjustment component is activated. The knocking and debris removal component is fixed to the main body of the cable tray and sleeved on the outside of the main cable, and is used to knock and remove debris from the main cable using natural wind power.

[0006] The above-mentioned cable tray structure spanning a river valley includes a temperature-responsive tension adjustment component comprising an embedded shell. Multiple hydraulic cylinders arranged in a ring are uniformly fixed to the top of the inner wall of the embedded shell. The bottom moving ends of the multiple hydraulic cylinders are fixed with the same force-concentrating plate, which is fixed to the outside of the end of the main cable. An accumulator is fixed to the outside of the pre-embedded shell. The inside of the accumulator is divided into an independent nitrogen chamber and an oil chamber by a diaphragm. The nitrogen chamber is used to fill with high-pressure inert nitrogen, and the oil chamber is used to fill with hydraulic oil. The diaphragm can elastically deform according to the pressure changes on both sides, thereby adjusting the internal volume of the two chambers. The oil chamber of the accumulator is connected to multiple hydraulic cylinders through a high-pressure pipeline. A heat conduction mechanism is fixed on the accumulator.

[0007] The above-mentioned cable tray structure spanning a river valley includes a heat conduction mechanism comprising multiple radially distributed heat conduction copper tubes. One end of each heat conduction copper tube is welded and fixed to the outer shell of the energy storage device, while the other end is exposed to the ambient air. Multiple heat dissipation fins are welded to the outer wall of each heat conduction copper tube.

[0008] The aforementioned cable tray structure spanning a river valley includes a locking assembly comprising a locking cylinder fixed to the outer wall of the main body of the cable tray via an extension rod. The locking cylinder is sleeved around the main cable. Multiple push rods are evenly inserted into the side wall of the locking cylinder. One end of the multiple push rods on the same side, located inside the locking cylinder, is fixed to the same push plate. Multiple locking nails are fixed to the side wall of the push plate. One push plate is fixed to the outer end of the multiple push rods on the same side, located outside the locking cylinder. A push spring, sleeved around the push rods, is fixed between the push plate and the locking cylinder. A pneumatic telescopic rod is also fixed between the outer wall of the locking cylinder and the push plate. An annular buffer tube is fixed to the lower outer wall of the locking cylinder. The annular buffer tube and the pneumatic telescopic rod are connected via a vent pipe. Multiple micro-holes for air leakage are also provided on the outer wall of the annular buffer tube.

[0009] The aforementioned cable tray structure spanning a river valley includes a locking force synchronous control component comprising a pressure boosting shell fixed to the top of the inner wall of a pre-embedded shell. The pressure boosting shell has an internally sealed pressure boosting piston. Multiple lifting rods are fixed to the lower end of the pressure boosting piston. The lower ends of the multiple lifting rods penetrate the lower end of the pressure boosting shell and are fixed to the same lifting plate. The lifting plate is fixedly sleeved around the moving ends of multiple hydraulic cylinders. Both the upper and lower ends of the pressure boosting shell are fixedly connected to an air supply pipe and an air replenishment pipe. One-way valves are installed on both the air supply pipe and the air replenishment pipe. The end of the air supply pipe furthest from the pressure boosting shell is connected to an annular buffer pipe.

[0010] The above-mentioned cable tray structure spanning a river valley includes a knocking and impurity removal component comprising a support rod fixed to the main body of the cable tray, a limiting sleeve sleeved outside the main cable fixed to the upper end of the support rod, a knocking shell integrally connected to one side of the limiting sleeve, a drive shaft rotatably sleeved to the lower end of the knocking shell, a cam fixed to one end of the drive shaft located inside the knocking shell, and a windmill fixed to the lower end of the drive shaft.

[0011] In the above-mentioned cable tray structure spanning a river valley, the outer wall of the limiting sleeve has multiple vibration damping rods that are movably inserted. One end of each of the multiple vibration damping rods on the same side is fixed with the same arc-shaped contact plate inside the limiting sleeve. Multiple vibration damping springs are fixed between the arc-shaped contact plate and the limiting sleeve and are sleeved on the outside of the vibration damping rods. The inner wall of the arc-shaped contact plate is covered with a rubber buffer pad.

[0012] In the above-mentioned cable tray structure spanning a river valley, the end of the locking nail is conical, and the contact angle with the main cable is 30° to 45°. Multiple locking nails are arranged in a matrix on the side wall of the extrusion plate.

[0013] Compared with existing technologies, the present invention has the following advantages: 1. This invention, by setting up a temperature-responsive tension adjustment component, utilizes the thermal expansion and contraction characteristics of nitrogen in the accumulator and automatically drives the hydraulic cylinder to move through the hydraulic system, compensating for the length changes of the main cable caused by temperature variations, and controlling the tension of the main cable within the allowable range without manual intervention, thus solving the problem of unstable sag and tension of the main cable caused by large temperature variations in tropical monsoon mountainous areas.

[0014] 2. By setting up a locking force synchronous control component, this invention can simultaneously drive the booster piston to generate compressed air when the hydraulic cylinder adjusts the tension of the main cable, thereby pushing the pneumatic telescopic rod to unlock the limit locking component. This avoids the reduction in adjustment accuracy and structural damage caused by the locking device restricting the movement of the main cable. After adjustment, the pressure is slowly released through the air leakage micro-hole of the annular buffer tube, and the push spring automatically pushes the locking pin to re-lock the main cable, realizing the linkage between adjustment and locking.

[0015] 3. This invention uses a knocking and debris removal component to drive the wind turbine to rotate, which in turn drives the cam to periodically knock down the main cable, removing debris such as branches and leaves accumulated on the main cable. This avoids deformation and stress concentration of the main cable caused by debris load. It requires no external energy, is energy-saving and environmentally friendly, and is especially suitable for unattended photovoltaic projects in remote mountainous areas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the temperature-responsive tension adjustment component of the present invention. Figure 3This is a cross-sectional view of the limiting and locking assembly of the present invention; Figure 4 yes Figure 3 Enlarged view of part A in the image; Figure 5 This is a cross-sectional view of the locking force synchronization control component of the present invention; Figure 6 This is a side cross-sectional view of the knocking impurity removal component of the present invention.

[0017] In the diagram: 1. Cable tray body; 2. Tension cable; 3. Anchor base; 4. Main cable; 5. Guide wheel; 6. Temperature-responsive tension adjustment assembly; 61. Embedded shell; 62. Hydraulic cylinder; 63. Concentrating plate; 64. Accumulator; 641. Diaphragm; 642. Nitrogen chamber; 643. Oil chamber; 65. High-pressure pipeline; 66. Heat conduction mechanism; 661. Heat conduction copper pipe; 662. Heat dissipation fins; 7. Limiting and locking assembly; 71. Extension rod; 72. Locking cylinder; 73. Push rod; 74. Push plate; 75. Locking nail; 7 6. Push-pull plate; 77. Extrusion spring; 78. Pneumatic telescopic rod; 79. Annular buffer tube; 710. Vent pipe; 711. Leakage micro-hole; 8. Locking force synchronous adjustment component; 81. Pressure boosting shell; 82. Pressure boosting piston; 83. Lifting rod; 84. Lifting plate; 85. Air supply pipe; 86. Air replenishment pipe; 9. Impact removal component; 91. Support rod; 92. Limiting sleeve; 93. Impact shell; 94. Drive shaft; 95. Cam; 96. Fan wheel; 97. Vibration damping rod; 98. Arc-shaped contact plate; 99. Vibration damping spring. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] like Figure 1 The cable tray structure shown includes a cable tray body 1, with multiple inclined tension cables 2 fixed to the upper side wall of the cable tray body 1, and an anchoring base 3 fixed to the lower end of the tension cables 2. Two horizontally arranged main cables 4 are connected to the cable tray body 1, and guide wheels 5 for guiding the main cables 4 are fixed to the cable tray body 1. It also includes four sets of temperature-responsive tension adjustment components 6, four sets of limit locking components 7, four sets of locking force synchronous control components 8, and multiple sets of knocking and impurity removal components 9.

[0020] In actual use, in this embodiment, the temperature-following tension adjustment component 6 compensates for the length change of the main cable 4 caused by temperature changes, and controls the tension of the main cable 4 within the allowable range. The cooperation of the limiting locking component 7 and the locking force synchronous control component 8 can further strengthen the limiting and locking of the main cable 4, and automatically retract when the tension needs to be adjusted to avoid the problem of tension not being adjustable. In addition, the knocking and debriding component 9 uses natural wind power to periodically knock the main cable 4 to knock off the branches, leaves and other debris accumulated on the main cable 4, so as to avoid deformation and stress concentration of the main cable 4 caused by debris load.

[0021] like Figures 1-2 As shown, further, the temperature-following tension adjustment component 6 is fixed to the end of the main cable 4, and the tension of the main cable 4 is automatically adjusted based on the change of ambient temperature. The temperature-following tension adjustment component 6 includes a pre-embedded shell 61, and a plurality of hydraulic cylinders 62 arranged in a ring are uniformly fixed on the top of the inner wall of the pre-embedded shell 61. The same force-concentrating plate 63 is fixed to the bottom moving end of the plurality of hydraulic cylinders 62, and the force-concentrating plate 63 is fixed to the outside of the end of the main cable 4. An accumulator 64 is fixed to the outside of the pre-embedded shell 61. The interior of the accumulator 64 is divided into an independent nitrogen chamber 642 and an oil chamber 643 by a diaphragm 641. The nitrogen chamber 642 is used to fill with high-pressure inert nitrogen, and the oil chamber 643 is used to fill with hydraulic oil. The diaphragm 641 can elastically deform according to the pressure change on both sides, and adjust the internal volume of the two chambers accordingly. The oil chamber 643 of the accumulator 64 is connected to multiple hydraulic cylinders 62 through a high-pressure pipeline 65. A heat conduction mechanism 66 is fixed on the accumulator 64. The heat conduction mechanism 66 includes multiple radially distributed heat conduction copper tubes 661. One end of the heat conduction copper tube 661 is welded and fixed to the shell of the accumulator 64, and the other end is exposed to the ambient air. Multiple heat dissipation fins 662 are welded to the outer wall of the heat conduction copper tube 661.

[0022] In actual use, in this embodiment, changes in ambient temperature are rapidly transmitted to the outer shell of the accumulator 64 through the heat-conducting copper pipe 661 and the heat dissipation fins 662, and then to the nitrogen chamber 642 inside the accumulator 64. When the ambient temperature rises, the nitrogen expands due to heat, pushing the diaphragm 641 to move, pressing the hydraulic oil in the oil chamber 643 into the rodless chamber of the hydraulic cylinder 62, pushing the piston rod of the hydraulic cylinder 62 to extend, causing the force-gathering plate 63 to move downward, pulling the end of the main cable 4 downward, compensating for the elongation of the main cable 4 caused by the temperature rise. When the ambient temperature drops, the nitrogen cools and contracts, and the tension of the main cable 4 pushes the piston rod to retract, pressing the hydraulic oil back into the oil chamber 643 of the accumulator 64, causing the force-gathering plate 63 to move upward, compensating for the shortening of the main cable 4 caused by the temperature drop.

[0023] like Figure 1 ,like Figure 3 and Figure 4As shown, further, the limiting and locking assembly 7 is fixed to the outer side of the end of the main cable 4 to assist in the positioning of the main cable 4. The limiting and locking assembly 7 includes a locking cylinder 72 fixed to the outer wall of the bridge frame body 1 by an extension rod 71. The locking cylinder 72 is sleeved on the outside of the main cable 4. Multiple push rods 73 are evenly inserted into the side wall of the locking cylinder 72. The same push plate 74 is fixed to one end of the multiple push rods 73 on the same side inside the locking cylinder 72. Multiple locking nails 75 are fixed to the side wall of the push plate 74. The same push plate 74 is fixed to one end of the multiple push rods 73 on the same side outside the locking cylinder 72. A push spring 77, sleeved on the push rod 73, is fixed between the plate 76, the push-pull plate 76, and the locking cylinder 72. A pneumatic telescopic rod 78 is also fixed between the outer wall of the locking cylinder 72 and the push-pull plate 76. An annular buffer tube 79 is fixed to the lower outer wall of the locking cylinder 72. The annular buffer tube 79 and the pneumatic telescopic rod 78 are connected by a vent pipe 710. The outer wall of the annular buffer tube 79 is also provided with multiple air leakage microholes 711. The end of the locking nail 75 is conical and the contact angle with the main cable 4 is 45°. Multiple locking nails 75 are arranged in a matrix on the side wall of the push plate 74.

[0024] In actual use, under normal conditions, the push spring 77 is compressed, pushing the push-pull plate 76 to move towards the locking cylinder 72. The push rod 73 drives the push plate 74 to press the main cable 4, and the locking pin 75 is inserted into the gap of the main cable 4 to provide auxiliary locking force and prevent the main cable 4 from sliding. When it is necessary to adjust the tension of the main cable 4, compressed air is introduced into the rodless cavity of the pneumatic telescopic rod 78, pushing the push plate 76 to move backward against the elastic force of the push spring 77, causing the push plate 74 and the locking pin 75 to disengage from the main cable 4 and release the lock. After the adjustment is completed, the compressed air slowly leaks through the leakage micro-hole 711, the air pressure in the pneumatic telescopic rod 78 gradually decreases, the push spring 77 pushes the push plate 76 to reset, and the locking pin 75 is reinserted into the main cable 4 to restore the lock.

[0025] like Figure 1 , Figure 2 He Ru Figure 5As shown, further, the locking force synchronous control component 8 is driven and installed inside the temperature-following tension force adjustment component 6, and is connected to the limit locking component 7. It is used to synchronously unlock the limit locking component 7 when the temperature-following tension force adjustment component 6 is activated. The locking force synchronous control component 8 includes a pressure-boosting shell 81 fixed to the top of the inner wall of the pre-embedded shell 61. The pressure-boosting shell 81 is internally sealed with a pressure-boosting piston 82. Multiple lifting rods 83 are fixed to the lower end of the pressure-boosting piston 82. The lower ends of the multiple lifting rods 83 penetrate the lower end of the pressure-boosting shell 81 and are fixed with the same lifting plate 84. The lifting plate 84 is fixedly sleeved on the moving end of multiple hydraulic cylinders 62. Both the upper and lower ends of the pressure-boosting shell 81 are fixedly connected to an air supply pipe 85 and an air replenishment pipe 86. Both the air supply pipe 85 and the air replenishment pipe 86 are equipped with a one-way valve. The end of the air supply pipe 85 away from the pressure-boosting shell 81 is connected to an annular buffer pipe 79.

[0026] In actual use, in this embodiment, when the piston rod of the hydraulic cylinder 62 extends (temperature rises), it drives the lifting plate 84 to move downwards. The lifting rod 83 pushes the booster piston 82 downwards, compressing the air in the lower chamber of the booster housing 81. The one-way valve in the lower chamber closes the air supply pipe 86 and opens the air supply pipe 85, sending compressed air into the annular buffer pipe 79. This, in turn, pushes the pneumatic telescopic rod 78 to extend, unlocking the limit locking assembly 7. Simultaneously, the volume of the upper chamber of the booster housing 81 increases, drawing in air through the air supply pipe 86. When the piston rod of the hydraulic cylinder 62 retracts (temperature decreases), The lifting plate 84 moves upward, and the lifting rod 83 pulls the booster piston 82 upward, compressing the air in the upper chamber of the booster shell 81. The one-way valve in the upper chamber closes the air supply pipe 86 and opens the air supply pipe 85, sending compressed air into the annular buffer pipe 79. This also pushes the pneumatic telescopic rod 78 to extend, unlocking the limit locking assembly 7. At the same time, the volume of the lower chamber of the booster shell 81 increases, and air is drawn in through the air supply pipe 86. Whether the hydraulic cylinder 62 extends or retracts, compressed air will be sent into the annular buffer pipe 79, realizing the synchronous linkage of tension adjustment and locking / unlocking.

[0027] like Figure 1 and Figure 6As shown, further, the knocking and debris removal component 9 is fixed to the cable tray body 1 and sleeved on the main cable 4. It is used to knock and remove debris from the main cable 4 using natural wind power. The knocking and debris removal component 9 includes a support rod 91 fixed to the cable tray body 1. A limiting sleeve 92 sleeved on the main cable 4 is fixed to the upper end of the support rod 91. A knocking shell 93 is integrally connected to one side of the limiting sleeve 92. A drive shaft 94 is rotatably sleeved on the lower end of the knocking shell 93. A cam 95 is fixed at one end inside the striking shell 93, and a fan wheel 96 is fixed at the lower end of the drive shaft 94. Multiple damping rods 97 are movably inserted into the outer wall of the limiting sleeve 92. The same arc-shaped contact plate 98 is fixed at one end of the multiple damping rods 97 on the same side inside the limiting sleeve 92. Multiple damping springs 99 are fixed between the arc-shaped contact plate 98 and the limiting sleeve 92 and are sleeved on the outside of the damping rods 97. A rubber buffer pad is pasted on the inner wall of the arc-shaped contact plate 98.

[0028] In actual use, when wind blows, the wind drives the windmill 96 to rotate, which in turn drives the cam 95 to rotate synchronously through the transmission shaft 94. The protrusion of the cam 95 periodically strikes the main cable 4, generating vibration and knocking off the debris such as branches, leaves, and plastic accumulated on the main cable 4. The arc-shaped contact plate 98, under the action of the damping spring 99, always presses against the other side of the main cable 4 to counteract the striking force of the cam 95 and prevent the main cable 4 from generating excessive lateral vibration. The rubber buffer pad can absorb the striking energy and reduce the wear of the main cable 4.

[0029] The operating principle of the present invention is now described as follows: Figures 1-6 As shown, changes in ambient temperature are transmitted to the accumulator 64 through the heat conduction mechanism 66. Utilizing the thermal expansion and contraction characteristics of nitrogen, the hydraulic cylinder 62 is moved through the hydraulic system to compensate for the length changes of the main cable 4 caused by temperature changes and to keep the tension of the main cable 4 constant. When the hydraulic cylinder 62 is activated, it drives the booster piston 82 to move through the lifting plate 84, generating compressed air which is sent into the annular buffer tube 79, pushing the pneumatic telescopic rod 78 to unlock the limit locking assembly 7, ensuring that the main cable 4 can move freely. After the adjustment is completed, the compressed air slowly leaks through the air leakage microhole 711, and the squeezing spring 77 pushes the locking nail 75 to re-lock the main cable 4. The wind turbine 96 is driven to rotate by natural wind power, which in turn drives the cam 95 to periodically strike the main cable 4, generating vibration to remove debris. No external energy is required, thus achieving unattended automatic debris removal.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable tray structure spanning a river valley, comprising a main body (1), wherein multiple inclined tension cables (2) are fixed to the upper side wall of the main body (1), and an anchoring base (3) is fixed to the lower end of the tension cables (2), two horizontally arranged main cables (4) are connected to the main body (1), and guide wheels (5) for guiding the main cables (4) are fixed to the main body (1), characterized in that, It also includes four sets of temperature-following tension adjustment components (6), four sets of limit locking components (7), four sets of locking force synchronous control components (8) and multiple sets of knocking and impurity removal components (9). The temperature-following tension adjustment component (6) is fixed to the end of the main cable (4) and self-regulates the tension of the main cable (4) based on the change of ambient temperature. The limiting locking assembly (7) is fixed to the outer side of the end of the main cable (4) to assist in the positioning of the main cable (4); The locking force synchronous control component (8) is driven and installed in the temperature follow-up tension force adjustment component (6) and is connected to the limiting locking component (7) for synchronously unlocking the limiting locking component (7) when the temperature follow-up tension force adjustment component (6) is activated. The knocking and cleaning component (9) is fixed on the main body (1) of the bridge frame and sleeved on the outside of the main cable (4) for knocking and cleaning the debris on the main cable (4) by natural wind force.

2. The cable tray structure spanning a river valley according to claim 1, characterized in that, The temperature-following tension adjustment component (6) includes a pre-embedded shell (61). Multiple hydraulic cylinders (62) are uniformly fixed on the top of the inner wall of the pre-embedded shell (61) and arranged in a ring. The bottom moving ends of the multiple hydraulic cylinders (62) are fixed with the same force-gathering plate (63). The force-gathering plate (63) is fixed to the outside of the end of the main cable (4). An accumulator (64) is fixed on the outside of the pre-embedded shell (61). The interior of the accumulator (64) is divided into an independent nitrogen chamber (642) and an oil chamber (643) by a diaphragm (641). The nitrogen chamber (642) is used to fill with high-pressure inert nitrogen, and the oil chamber (643) is used to fill with hydraulic oil. The diaphragm (641) can undergo elastic deformation with the pressure change on both sides to adjust the internal volume of the two chambers accordingly. The oil chamber (643) of the accumulator (64) is connected to multiple hydraulic cylinders (62) through a high-pressure pipeline (65). A heat conduction mechanism (66) is fixed on the accumulator (64).

3. The cable tray structure spanning a river valley according to claim 2, characterized in that, The heat conduction mechanism (66) includes multiple radially distributed heat conduction copper tubes (661). One end of the heat conduction copper tube (661) is welded and fixed to the outer shell of the accumulator (64), and the other end is exposed to the ambient air. Multiple heat dissipation fins (662) are welded to the outer wall of the heat conduction copper tube (661).

4. A cable tray structure spanning a river valley according to claim 2, characterized in that, The limiting locking assembly (7) includes a locking cylinder (72) fixed to the outer wall of the cable tray body (1) by an extension rod (71). The locking cylinder (72) is sleeved on the outside of the main cable (4). Multiple push rods (73) are evenly inserted into the side wall of the locking cylinder (72). The same push plate (74) is fixed to one end of the multiple push rods (73) on the same side inside the locking cylinder (72). Multiple locking nails (75) are fixed to the side wall of the push plate (74). The same push rods (73) on the same side outside the locking cylinder (72) are fixed with a... The same push-pull plate (76) and the locking cylinder (72) are fixed with a push spring (77) sleeved on the push rod (73). A pneumatic telescopic rod (78) is also fixed between the outer wall of the locking cylinder (72) and the push-pull plate (76). An annular buffer tube (79) is fixed on the lower outer wall of the locking cylinder (72). The annular buffer tube (79) and the pneumatic telescopic rod (78) are connected by a vent pipe (710). The outer wall of the annular buffer tube (79) is also provided with multiple air leakage micro holes (711).

5. A cable tray structure spanning a river valley according to claim 4, characterized in that, The locking force synchronous control component (8) includes a pressure boosting shell (81) fixed to the top of the inner wall of the pre-embedded shell (61). The pressure boosting shell (81) is internally sealed with a pressure boosting piston (82). Multiple lifting rods (83) are fixed to the lower end of the pressure boosting piston (82). The lower ends of the multiple lifting rods (83) penetrate the lower end of the pressure boosting shell (81) and are fixed with the same lifting plate (84). The lifting plate (84) is fixedly sleeved on the moving end of multiple hydraulic cylinders (62). Both the upper and lower ends of the pressure boosting shell (81) are fixedly connected to an air supply pipe (85) and an air replenishment pipe (86). Both the air supply pipe (85) and the air replenishment pipe (86) are equipped with a one-way valve. The end of the air supply pipe (85) away from the pressure boosting shell (81) is connected to an annular buffer pipe (79).

6. The cable tray structure spanning a river valley according to claim 1, characterized in that, The knocking and impurity removal assembly (9) includes a support rod (91) fixed on the bridge frame body (1). The upper end of the support rod (91) is fixed with a limiting sleeve (92) sleeved outside the main cable (4). A knocking shell (93) is integrally connected to one side of the limiting sleeve (92). A drive shaft (94) is rotatably sleeved at the lower end of the knocking shell (93). A cam (95) is fixed at one end of the drive shaft (94) located inside the knocking shell (93). A windmill (96) is fixed at the lower end of the drive shaft (94).

7. A cable tray structure spanning a river valley according to claim 6, characterized in that, The outer wall of the limiting sleeve (92) is fitted with multiple damping rods (97). One end of each of the multiple damping rods (97) on the same side is fixed with the same arc-shaped contact plate (98) inside the limiting sleeve (92). Multiple damping springs (99) are fixed between the arc-shaped contact plate (98) and the limiting sleeve (92) and are sleeved on the outside of the damping rods (97). The inner wall of the arc-shaped contact plate (98) is attached with a rubber buffer pad.

8. A cable tray structure spanning a river valley according to claim 4, characterized in that, The end of the locking pin (75) is conical, and the contact angle with the main cable (4) is 30° to 45°. Multiple locking pins (75) are arranged in a matrix on the side wall of the extrusion plate (74).

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