Novel cable trench automatic dehumidification moisture-proof cover plate and opening and closing method thereof

Abstract

The invention provides a novel cable trench automatic dehumidification damp-proof cover plate and an opening and closing method thereof, and belongs to the technical field of cable trench damp-proof, an auxiliary structure is arranged between a crank arm and a folding rod, the auxiliary structure comprises a sliding hinge shaft fixedly installed at one end of the crank arm, and the end, close to the crank arm, of the folding rod is fixedly connected with a movable frame; a sliding hinge groove is formed in one side of the movable frame, and the sliding hinge shaft is configured to slide or rotate in the sliding hinge groove so that the movable frame and the crank arm can rotate or the movable frame can move relative to the crank arm. The device has the advantages that the middle of the cover plate is stressed to open the cover plate through the crank arm and the auxiliary structure when the cover plate is opened, more labor is saved when the cover plate is opened, thrust of the crank arm enables the folding rod to move in the direction attached to the cover plate through the sliding hinge shaft and the sliding hinge groove, and the situation that the cover plate cannot be opened due to reverse folding of the crank arm and the folding rod is avoided. The cover plate can be remotely opened through electric driving of the driving assembly, remote operation is carried out when the cover plate is opened for dehumidification, operators do not need to enter the transformer substation, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The invention belongs to the technical field of cable trench moisture-proofing, and in particular relates to a novel automatic dehumidification moisture-proof cover plate for a cable trench and an opening and closing method thereof. Background Art

[0002] like Figure 1 As shown, the cable trench is an important auxiliary facility of the substation and an important passage for various power cables, signal cables, and protective cables in the substation. In order to ensure the insulation of the cables in the cable trench, the cable trench is designed to be covered with a movable cover for ventilation and inspection. Due to the gaps between the covers, water will flow into the cable trench along the gaps during rainy and snowy weather and is not easy to dissipate, causing the interior of the cable trench to be in a high humidity state for a long time, accelerating the corrosion and aging of the internal components of the cable trench and reducing the insulation of the cables. Therefore, the cable trench needs to open the cover regularly for ventilation and dehumidification. The existing method is manual opening and closing operations. The substation has high voltage, and frequent manual entry and exit operations are dangerous. Summary of the invention

[0003] The technical problem to be solved by the present invention is to dehumidify the inside of a cable trench. In view of the shortcomings of the prior art, a new type of automatic dehumidification and moisture-proof cover for a cable trench is provided, which is easy to operate and effective. To solve the above technical problems, the technical solution adopted by the present invention is as follows: comprising an opening and closing component, the opening and closing component comprising a frame, the top of the frame is hinged with a cover plate, the bottom of the frame is provided with a driving component, the output end of the driving component is transmission-connected with a measuring component, one side of the measuring component is provided with a slider, a crank arm is hinged on the slider, one end of the crank arm is rotatably provided with a folding rod, one end of the folding rod is hinged with the bottom of the cover plate; An auxiliary structure is arranged between the curved arm and the folding rod, and the auxiliary structure includes a sliding hinge shaft fixedly installed on one end of the curved arm. The end of the folding rod close to the curved arm is fixedly connected to a movable frame, and a sliding hinge groove is arranged on one side of the movable frame. The sliding hinge shaft is configured to slide or rotate inside the sliding hinge groove so that the movable frame rotates with the curved arm or the movable frame moves relative to the curved arm.

[0004] Furthermore, the driving assembly includes a motor installed at the bottom of the frame, a lead screw is fixedly installed at the output end of the motor, and a surface of the lead screw is threadedly connected to the measuring assembly.

[0005] Further, the measuring assembly includes a connecting shell, a measuring groove is provided on one side of the connecting shell, a tension sensor is fixedly installed inside the measuring groove, a force rotating frame is fixedly installed on one side of the tension sensor, a driving block is abutted on one side of the force rotating frame, and the driving block is fixedly installed with the slider; The force rotating frame and the driving block are both provided with inclined surfaces, and the inclined surfaces are used to convert the driving force of the driving assembly into a pressure or a tension toward the tension sensor.

[0006] Furthermore, the driving component is connected to an energy supply component, the energy supply component includes a solar panel, the output end of the solar panel is connected to a battery pack, the battery pack is connected to a controller, the controller includes a wireless receiving device, the controller is connected to a motor controller, and the motor controller is used to control the start-up of the driving component.

[0007] Furthermore, a rain sensor is installed on the cover plate, and the rain sensor is connected to the controller.

[0008] A moisture-proof cover opening and closing method is applied to a new type of automatic dehumidification moisture-proof cover for a cable trench, and is characterized by comprising: opening the cover: Start the driving assembly, which drives the slider to move forward; The slider drives the crank arm to move, drives the sliding hinge shaft to slide along the inclined side wall of the sliding hinge groove, and pushes the movable frame to move upward; The movable frame pushes the cover plate to rotate and open. After the cover plate rotates 90 degrees, it continues to flip, driving one end of the folding rod to move. The height of the connection between the folding rod and the crank arm is reduced, and the cover plate opens 180 degrees. Move the slider in the opposite direction to lower the height of the connection between the folding rod and the crank arm, so that the middle part of the folding rod contacts the cover plate.

[0009] Furthermore, the invention also includes a cover closing method: Start the driving component, and the driving component drives the slider to move; The slider moves in the opposite direction, pulling the crank arm to move, and the crank arm drives the sliding hinge shaft to slide along the inclined side wall of the sliding hinge groove, so that the movable frame moves downward; The movable frame uses the contact part between the folding rod and the cover plate as the lever fulcrum to press the folding rod downward, and the folding rod drives the cover plate to rotate upward under the lever force, thereby increasing the initial angle of the folding rod pulling the cover plate and pulling the cover plate to rotate and close.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. Start the driving assembly, which drives the slider to move forward. The movement of the slider drives the movement of the crank arm while the inclination changes, driving the sliding hinge shaft to move with the movement of the crank arm. The sliding hinge shaft pushes the movable frame upward along the side wall of the sliding hinge groove, thereby causing the movable frame to push the middle area of ​​the cover plate to rotate and open. After the cover plate rotates more than 90 degrees, it continues to flip according to inertia, driving one end of the folding rod to move, and the height of the connection between the folding rod and the crank arm is reduced, so that the cover plate is opened 180 degrees. The slider is moved in the opposite direction to reduce the height of the connection between the folding rod and the crank arm, and the middle part of the folding rod contacts the cover plate. The driving assembly is used as the driving power, and the middle part of the cover plate is subjected to force to open the cover plate through the crank arm and the auxiliary structure when the cover plate is opened, making it more labor-saving to open the cover plate. When the thrust of the crank arm is transmitted to the folding rod through the sliding hinge shaft and the sliding hinge groove, the folding rod moves in the direction of fitting the cover plate, avoiding the cover plate being unable to be opened due to the reverse bending of the crank arm and the folding rod. The electric drive of the driving assembly can remotely open the cover plate, and the cover plate can be remotely operated when it is opened for dehumidification. The operator does not need to enter the substation, eliminating safety hazards.

[0011] 2. The cover integrates solar panels and batteries. The solar panels automatically charge the batteries, and the controller stops automatically after they are fully charged. Solar energy + battery charging and discharging do not require the layout of power lines; the cover is compatible with existing cover panels, allowing for seamless replacement.

[0012] The cable trench automatic dehumidification and moisture-proof cover plate maintains the existing functions and adds a remote control function. The operator can close or open the cover plate through the mobile phone app and remotely control the opening and closing of the cover plate. In the office, it can realize remote opening or closing of single, part, or all covers; A rain sensor is installed on the cover. The cover can be closed automatically in rainy and snowy weather to prevent water from entering the cover when it is opened. An automatic trigger closing function of rain and snow is added. The cover will automatically close in sudden rain and snow weather to prevent a large amount of rainwater from entering the cable trench. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0014] Figure 1 : A schematic diagram of the structure of the existing cable trench in the present invention; Figure 2 : A schematic diagram of the three-dimensional structure of the cover plate after closing in Example 1 of the present invention; Figure 3 : A schematic diagram of the structure of the bottom of the cover plate in Example 1 of the present invention; Figure 4 : A schematic diagram of a cross-sectional view of the frame and the movable frame in Example 1 of the present invention; Figure 5 : A schematic diagram of a cross-sectional view of a measuring assembly in Embodiment 1 of the present invention; Figure 6: A schematic diagram of the three-dimensional structure after the cover plate is opened in Example 1 of the present invention; Figure 7 : The present invention Figure 6 A schematic diagram of the structure in cross-section; Figure 8 : Schematic diagram of the structure of the energy supply component in Example 1 of the present invention.

[0015] Among them, 10, opening and closing assembly; 11, frame; 12, cover plate; 13, slider; 14, crank arm; 15, folding rod; 16, rain sensor; 20, driving assembly; 21, motor; 22, lead screw; 30, auxiliary structure; 31, sliding hinge shaft; 32, movable frame; 33, sliding hinge groove; 40, measuring assembly; 41, connecting shell; 42, measuring groove; 43, tension sensor; 44, force rotating frame; 45, driving block. DETAILED DESCRIPTION

[0016] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments and the accompanying drawings, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0017] Example 1: See Figure 1-8 The embodiment of the present invention is a novel automatic dehumidification and moisture-proof cover for cable trenches, which includes an opening and closing component 10, the opening and closing component 10 includes a frame 11, the frame 11 is composed of a frame with the same shape as the cover and a support rod parallel to the cable direction, the top of the frame 11 is hinged with a cover 12, the long side of the frame 11 is provided with a hinge, the movable part of the hinge is fixedly installed with the cover 12, the bottom of the frame 11 is provided with a driving component 20, the driving component 20 is started, the output end of the driving component 20 is transmission-connected with a measuring component 40, and a slider 13 is provided on one side of the measuring component 40, the driving component The component 20 drives the slider 13 to move. The slider 13 is hinged with a crank arm 14. The crank arm 14 is composed of two sets of side plates and a connecting component connecting the two sets of side plates. A rotating shaft is arranged at one end of the crank arm. The slider 13 is provided with a hole for the rotating shaft to pass through. The movement of the slider 13 drives the crank arm 14 to move while the inclination changes. A folding rod 15 is rotatably arranged at one end of the crank arm 14. A hinge frame is arranged at the middle of the cover plate 12 near the hinge. The distal end of the folding rod 15 is fixedly connected with a hinge rod. The hinge rod is rotatably connected to the hinge frame. One end of the folding rod 15 is hinged to the bottom of the cover plate 12 through the hinge rod and the hinge frame. The folding rod 15 is provided with an auxiliary structure 30 between the curved arm 14 and the folding rod 15. The auxiliary structure 30 includes a sliding hinge shaft 31 fixedly installed at one end of the curved arm 14. The end of the folding rod 15 close to the curved arm 13 is fixedly connected to a movable frame 32. A sliding hinge groove 33 is provided on one side of the movable frame 32. The sliding hinge shaft 31 is configured to slide or rotate inside the sliding hinge groove 33 to rotate the movable frame 32 and the curved arm 13 or to move the movable frame 32 relative to the curved arm 14. The sliding hinge shaft 31 moves with the movement of the curved arm 14, and the sliding hinge shaft 31 pushes the movable frame 32 to move along the side wall of the sliding hinge groove 33. When the cover plate 12 is opened, one end of the folding rod 15 is pushed upward to assist in lifting the cover plate 12. When the cover plate 12 is closed, one end of the folding rod 15 is pulled downward so that the folding rod 15 drives the side connected to the cover plate 12 with the middle as the lever point to tilt up, thereby assisting in pulling the cover plate 12, and then the cover plate 12 is opened more smoothly, saving effort for the driving component 20.

[0018] See also Figure 4 , Figure 5 and Figure 7 The driving component 20 includes a motor 21 installed at the bottom of the frame 11, and a lead screw 22 is fixedly installed at the output end of the motor 21. The surface of the lead screw 22 is threadedly connected to the measuring component 40. The motor 21 is started, and the motor 21 drives the lead screw 22 to rotate. The rotation of the lead screw 22 drives the measuring component 40 to move. The movement of the measuring component 40 drives the slider 13 to move, thereby completing the process of the driving component 20 driving the slider 13 to move.

[0019] See also Figure 5 The measuring assembly 40 includes a connecting shell 41, which is threadedly connected to the lead screw 22. A measuring groove 42 is provided on one side of the connecting shell 41. A tension sensor 43 is fixedly installed inside the measuring groove 42. The tension sensor 43 is an integrated tension and pressure sensor. A force rotating frame 44 is fixedly installed on one side of the tension sensor 43. A driving block 45 is abutted on one side of the force rotating frame 44. The driving block 45 is fixedly installed on the slider 13. Both the force rotating frame 44 and the driving block 45 are provided with inclined surfaces, which are used to convert the driving force of the driving assembly 20 into pressure or tension toward the tension sensor 43. The lead screw 22 After rotation, the connecting shell 41 is driven to move, and the movement of the connecting shell 41 drives the tension sensor 43 and the force rotating frame 44 to move together. The driving block 45 abuts against the inclined surface of the force rotating frame 44. After the force is decomposed, a part of the horizontal thrust is converted into pressure in the direction toward the tension sensor 43. The force application range of the decomposed thrust on the tension sensor 43 when pushing and pulling the cover 12 is recorded in advance. When someone stands on the cover or heavy objects are placed on the cover, the thrust will apply a force on the tension sensor 43 that exceeds the recorded force range, and then the force is stopped to avoid excessive force damage to the device components due to the heavy objects on the cover.

[0020] See also Figure 8The driving component 20 is connected to an energy supply component, which includes a solar panel. The output end of the solar panel is connected to a battery pack, which is connected to a controller. The controller includes a wireless receiving device, which is connected to a motor controller. The motor controller is used to control the start-up of the driving component 20.

[0021] See also Figure 6 A rain sensor 16 is installed on the cover plate 12, and the rain sensor 16 is connected to the controller.

[0022] Beneficial effects: 1. Start the driving assembly 20, which drives the slider 13 to move forward. The movement of the slider 13 drives the crank arm 14 to move while the inclination changes, driving the sliding hinge shaft 31 to move with the movement of the crank arm 14. The sliding hinge shaft 31 pushes the movable frame 32 to move upward along the side wall of the sliding hinge groove 33, so that the movable frame 32 pushes the middle area of ​​the cover plate 12 to rotate and open. After the cover plate 12 rotates more than 90 degrees, it continues to flip according to inertia, driving one end of the folding rod 15 to move, and the height of the connection between the folding rod 15 and the crank arm 14 is reduced, so that the cover plate 12 is opened 180 degrees. The slider 13 is moved in the opposite direction to reduce the height of the connection between the folding rod 15 and the crank arm 14. The middle part of the rod 15 contacts the cover plate 12, and the driving component 20 is used as the driving power. When the cover plate 12 is opened, the middle part of the cover plate 12 is subjected to force through the curved arm 14 and the auxiliary structure 30 to open the cover plate 12, making it easier to open the cover plate. When the thrust of the curved arm 14 is transmitted to the folding rod 15 through the sliding hinge shaft 31 and the sliding hinge groove 33, the folding rod 15 moves in the direction of fitting the cover plate 12 to avoid the curved arm 14 and the folding rod 15 from bending back and causing the cover plate 12 to be unable to be opened. The driving component 20 is electrically driven to remotely open the cover plate 12, and the cover plate 12 can be remotely operated when it is opened for dehumidification. The operator does not have to enter the substation, eliminating safety hazards.

[0023] 2. The cover integrates solar panels and batteries. The solar panels automatically charge the batteries, and the controller stops automatically after they are fully charged. Solar energy + battery charging and discharging do not require the layout of power lines; the cover is compatible with existing cover panels, allowing for seamless replacement.

[0024] 3. The cable trench automatic dehumidification and moisture-proof cover plate maintains the existing functions, and adds a remote control function. The operator can close or open the cover plate through the mobile phone app, and remotely control the opening and closing of the cover plate. In the office, it can realize remote opening or closing of single, part, or all covers; 4. A rain sensor is installed on the cover. The cover can be closed automatically in rainy and snowy weather to prevent water from entering the cover when it is opened. The rain and snow automatically trigger the closing function. The cover will automatically close in sudden rain and snow weather to prevent a large amount of rainwater from entering the cable trench.

[0025] 5. The screw 22 rotates to drive the connecting shell 41 to move. The movement of the connecting shell 41 drives the tension sensor 43 and the force rotating frame 44 to move together. The driving block 45 abuts against the inclined surface of the force rotating frame 44. After the force is decomposed, a part of the horizontal thrust is converted into pressure in the direction of the tension sensor 43. The force range of the decomposed thrust on the tension sensor 43 when pushing and pulling the cover 12 is recorded in advance. When someone stands on the cover or heavy objects are placed on the cover, the thrust will apply a force on the tension sensor 43 that exceeds the recorded force range, and then the force is stopped to avoid excessive force damage to the device components due to the heavy objects on the cover.

[0026] Embodiment 2: A method for opening and closing a moisture-proof cover, applied to the new type of automatic dehumidification moisture-proof cover for cable trenches in Embodiment 1, comprising: opening the cover: The driving assembly 20 is started, and the driving assembly 20 drives the slider 13 to move forward, and the forward movement is to move toward the hinge between the cover plate and the frame; The slider 13 drives the crank arm 14 to move, drives the sliding hinge shaft 31 to slide along the inclined side wall of the sliding hinge groove 33, and pushes the movable frame 32 to move upward, so as to prevent the angle between the folding rod 15 and the crank arm 14 from being too small when the crank arm 14 applies force to the folding rod 15, thereby applying thrust toward the hinge of the folding rod 15 and the cover plate 12, and the hinge of the folding rod 15 and the cover plate 12 is damaged due to excessive force; The movable frame 32 pushes the cover plate 12 to rotate and open. When the cover plate 12 rotates 90 degrees, the cover plate rotates 90 degrees from 0 degrees by the force of the crank arm 14. At this time, the folding rod 15 is in contact with the cover plate. When the cover plate 12 rotates more than 90 degrees, it continues to flip under the inertia of the cover plate 12, driving one end of the folding rod 15 to move, and the height of the connection between the folding rod 15 and the crank arm 14 is reduced, and the cover plate 12 is opened 180 degrees. The slider 13 is moved in the reverse direction, and moves away from the folding rod 15, so that the height of the connection between the folding rod 15 and the curved arm 14 is reduced, and the middle part of the folding rod 15 contacts the cover plate 12, and the device has better flatness after the cover plate 12 is opened.

[0027] See also Figure 7 , and also includes a cover closing method: starting the driving component 20, and the driving component 20 drives the slider 13 to move; The slider 13 moves in the reverse direction, and moves away from the folding rod 15, pulling the crank arm 14 to move, and the crank arm 14 drives the sliding hinge shaft 31 to slide along the inclined side wall of the sliding hinge groove 33, and changes the direction of part of the lateral pulling force received by the movable frame 32 through the inclined surface of the sliding hinge groove 33, so that the movable frame 32 moves downward; The movable frame 32 presses down the folding rod 15 with the contact part between the folding rod 15 and the cover plate 12 as the lever fulcrum. The folding rod 15 drives the cover plate 12 to rotate upward under the lever force, thereby increasing the initial angle at which the folding rod 15 pulls the cover plate 12, and converts a part of the lateral pulling force of the folding rod 15 on the cover plate 12 into a pulling force pulling the cover plate 12 upward, thereby pulling the cover plate 12 to rotate and close.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A new type of automatic dehumidification and moisture-proof cover for cable trench, characterized in that: The opening and closing assembly (10) comprises a frame (11), the top of the frame (11) is hingedly connected to a cover plate (12), the bottom of the frame (11) is provided with a driving assembly (20), the output end of the driving assembly (20) is drivingly connected to a measuring assembly (40), one side of the measuring assembly (40) is provided with a slider (13), a crank arm (14) is hingedly connected to the slider (13), one end of the crank arm (14) is rotatably provided with a folding rod (15), one end of the folding rod (15) is hingedly connected to the bottom of the cover plate (12); An auxiliary structure (30) is provided between the crank arm (14) and the folding rod (15), the auxiliary structure (30) comprising a sliding hinge shaft (31) fixedly mounted on one end of the crank arm (14), the folding rod (15) having one end close to the crank arm (13) fixedly connected to a movable frame (32), a sliding hinge groove (33) being provided on one side of the movable frame (32), the sliding hinge shaft (31) being configured to slide or rotate inside the sliding hinge groove (33) so as to rotate the movable frame (32) and the crank arm (13) or to move the movable frame (32) relative to the crank arm (14).

2. The new type of automatic dehumidification and moisture-proof cover for cable trench as claimed in claim 1 is characterized in that: The driving assembly (20) comprises a motor (21) mounted on the bottom of the frame (11), a lead screw (22) being fixedly mounted on the output end of the motor (21), and a surface of the lead screw (22) being threadedly connected to the measuring assembly (40).

3. The new type of automatic dehumidification and moisture-proof cover for cable trench as claimed in claim 1 is characterized in that: The measuring assembly (40) comprises a connecting shell (41), a measuring groove (42) is provided on one side of the connecting shell (41), a tension sensor (43) is fixedly installed inside the measuring groove (42), a force rotating frame (44) is fixedly installed on one side of the tension sensor (43), a driving block (45) is abutted on one side of the force rotating frame (44), and the driving block (45) is fixedly installed on the slider (13); The force rotating frame (44) and the driving block (45) are both provided with inclined surfaces, and the inclined surfaces are used to convert the driving force of the driving component (20) into pressure or tension toward the tension sensor (43).

4. The new type of automatic dehumidification and moisture-proof cover for cable trench as claimed in claim 1 is characterized in that: The drive component (20) is connected to an energy supply component, the energy supply component comprises a solar panel, the output end of the solar panel is connected to a battery pack, the battery pack is connected to a controller, the controller comprises a wireless receiving device, the controller is connected to a motor controller, and the motor controller is used to control the start-up of the drive component (20).

5. The new type of automatic dehumidification and moisture-proof cover for cable trench as claimed in claim 4 is characterized in that: A rain sensor (16) is mounted on the cover plate (12), and the rain sensor (16) is connected to a controller.

6. A method for opening and closing a moisture-proof cover, applied to the new type of automatic dehumidification moisture-proof cover for cable trenches as claimed in claim 1, characterized in that: Including cover opening: The driving assembly (20) is started, and the driving assembly (20) drives the slider (13) to move in a positive direction; The slider (13) drives the crank arm (14) to move, driving the sliding hinge shaft (31) to slide along the inclined side wall of the sliding hinge groove (33), and pushing the movable frame (32) to move upward; The movable frame (32) pushes the cover plate (12) to rotate and open. After the cover plate (12) rotates 90 degrees, it continues to flip, driving one end of the folding rod (15) to move. The height of the connection between the folding rod (15) and the crank arm (14) is reduced, and the cover plate (12) is opened 180 degrees. The slider (13) is moved in the reverse direction, so that the height of the connection between the folding rod (15) and the crank arm (14) is lowered, and the middle part of the folding rod (15) contacts the cover plate (12).

7. The moisture-proof cover opening and closing method according to claim 6, characterized in that: Also includes the cover closing method: Starting the driving component (20), so that the driving component (20) drives the slider (13) to move; The slider (13) moves in the reverse direction, pulling the crank arm (14) to move, and the crank arm (14) drives the sliding hinge shaft (31) to slide along the inclined side wall of the sliding hinge groove (33), so that the movable frame (32) moves downward; The movable frame (32) uses the contact portion between the folding rod (15) and the cover plate (12) as a lever fulcrum to press the folding rod (15) downward, and the folding rod (15) drives the cover plate (12) to rotate upward under the lever force, thereby increasing the initial angle at which the folding rod (15) pulls the cover plate (12), and pulls the cover plate (12) to rotate and close.

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