Prefabricated automatic drainage cable trench

Abstract

This invention relates to the field of cable trench technology and discloses a prefabricated automatic drainage cable trench. The cable trench includes a connector with an arc-shaped structure; two cable trench bodies, each connected to both ends of the connector; and a transfer unit disposed on the connector for supporting and laying cables. The cable trench body includes a cable trench groove, a pull plate built into the inner wall of the cable trench groove, multiple placement racks symmetrically arranged on the pull plate, a drainage groove at the bottom of the cable trench groove, and a drainage part disposed in the drainage groove. A floating box is provided; when the water flow height in the drainage pipe rises, it moves the floating box, thereby enabling the cutting mechanism to operate and cut off the drainage pipe, preventing sewage from entering the cable trench along the drainage pipe and drainage pipe, avoiding cable damage, and ensuring normal cable operation.

Description

Technical Field

[0001] This invention relates to the field of cable trench technology, specifically to prefabricated automatic drainage cable trenches. Background Technology

[0002] Cable trenches are typically covered channels, with the cover surface either flush with or slightly below the ground level. Cable supports are installed inside the trench, holding the cables a certain distance from the trench bottom. A sealing wall is installed where the cable trench enters a building to prevent the spread of smoke and fire. Additionally, drainage facilities, such as sump pits, may be provided inside the trench to address water accumulation issues.

[0003] For example, Chinese patent application CN104852341A discloses a cable trench, including a cable mounting pipe and a cable bracket. The cable bracket is installed inside the cable mounting pipe and is used to support and fix the cable. The cable bracket includes a left half cable bracket and a right half cable bracket. The left half cable bracket includes a left semi-circular arc-shaped body and a left cable support arm, and the right half cable bracket includes a right semi-circular arc-shaped body and a right cable support arm.

[0004] However, the existing equipment still has some problems. In order to avoid water accumulation, the existing cable trenches are equipped with water collection wells. The water collection wells can drain the accumulated water. However, in order to maintain the environment inside the cable trench, some water needs to remain so as to cool the environment inside the cable trench. However, the existing water collection wells cannot achieve the above effect. At the same time, since the water collection wells are connected to the pipes when they are draining water, when there is too much water in the pipes during the flood season, it will cause sewage backflow, which will cause sewage to enter the cable trench and damage the cables.

[0005] Therefore, how to drain the water accumulated in the cable trench is a problem that needs to be solved. Summary of the Invention

[0006] This invention provides a prefabricated automatic drainage cable trench to solve the above-mentioned problems existing in the prior art.

[0007] Prefabricated automatic drainage cable trenches include:

[0008] Connector, arc-shaped structure;

[0009] There are two cable trench bodies, which are respectively connected to both ends of the connector;

[0010] An adapter unit, mounted on the connector, is used for supporting and laying cables;

[0011] The cable trench body includes a cable trench, a pull plate built into the inner wall of the cable trench, a plurality of placement racks symmetrically arranged on the pull plate, a drainage groove opened at the bottom of the cable trench, and a drainage part arranged in the drainage groove; the cable trench body has a U-shaped structure, and placement racks are respectively provided on one or both sides of the inner wall of the cable trench body.

[0012] Furthermore, the drainage section includes a placement cavity formed in the cable trench, a drainage pipe located in the placement cavity, a drain pipe connected to the drainage pipe, and a drainage component located inside the drainage pipe and communicating with the drain pipe;

[0013] Along the depth direction of the cable trench, the drain pipe is closer to the transfer unit than the drain pipe. The drain pipe is provided with a drain outlet. Water in the cable trench flows into the drain pipe along the drain pipe and the drain fitting, and is discharged from the drain outlet.

[0014] Furthermore, the drainage component includes an interface seat connected to the drain pipe and communicating with the diversion pipe, a drain seat screwed to the interface seat, a guide pipe and a connecting pipe connected to the drain seat, a support pipe sleeved on the connecting pipe, a guide seat connected to one end of the support pipe, a sealing seat built into the guide seat, a cutting-off mechanism connected to the sealing seat, and a diversion seat disposed at one end of the guide pipe and located in the guide seat;

[0015] The connecting pipe is sleeved on the guide pipe, and the drainage seat is provided with multiple drainage through holes in the area between the outer wall of the guide pipe and the inner wall of the connecting pipe.

[0016] The drainage seat is provided with multiple communication ports, which are used to inject liquid into the area between the outer wall of the drainage tube and the inner wall of the connecting tube.

[0017] The sealing seat is adapted to the drainage seat, thereby cutting off the flow of liquid.

[0018] Furthermore, the cutting mechanism includes a floating box sleeved on the support tube, a traction rod connected to the floating box, a drive rod movably connected to the traction rod, and a guide rod connected to the drive rod, extending into the guide seat and connected to the sealing seat;

[0019] The drive rod is movably connected to the guide seat, and the floating box is closer to the guide seat than the drainage seat;

[0020] By moving the floating box upwards, the flow of liquid is cut off, preventing the drain pipe from transporting liquid into the cable trench.

[0021] Furthermore, the adapter unit includes a support frame connected to the connector, a plurality of ventilation sections disposed on the support frame, and a plurality of winding motors and a plurality of support sections respectively disposed on the support frame;

[0022] The winding motor is connected to the support section;

[0023] The support frame is provided with multiple ventilation chambers for housing ventilation components.

[0024] Furthermore, the ventilation unit includes a ventilation seat fixedly mounted on the support frame, a mounting seat detachably connected to the ventilation seat, and a fan built into the mounting seat;

[0025] The support frame is also equipped with an arc-shaped bracket;

[0026] The ventilation seat includes a first drainage element, a second drainage element disposed on the first drainage element and having an arc, a third drainage element connected to the first drainage element, and a fourth drainage element connected to the third drainage element;

[0027] The ventilation seat has a U-shaped structure, and there is a gap between the second and fourth drainage components, allowing gas to move within the ventilation seat and exit through the gap, thus dissipating heat from the bent cable at the corner.

[0028] Furthermore, the support includes a plurality of first traction rollers disposed on the support frame, a second traction roller connected to the arc-shaped bracket, at least two sliders slidably connected to the arc-shaped bracket, a third traction roller connected to the sliders, a pulley connected to the sliders and located on the arc-shaped bracket, a traction hook connected to the support frame, and a traction rope for connecting the traction hook, the second traction roller, the third traction roller and the first traction roller.

[0029] One end of the traction rope is connected to the output end of the winding motor, and the other end is set on the support frame;

[0030] The arc-shaped bracket is provided with a groove for placing pulleys;

[0031] The winding motor output end is provided with a winding wheel, the arc-shaped bracket is provided with a positioning hole, and the slider is adapted to the positioning hole by a positioning pin to complete the positioning of the slider.

[0032] Furthermore, the third traction roller is also provided with a guide for limiting the cable;

[0033] The guide includes a limiting seat connected to the third traction roller, a driving mechanism connected to the limiting seat, a guiding mechanism connected to the driving mechanism, and a limiting mechanism connected to the guiding mechanism.

[0034] Furthermore, the driving mechanism includes an adjusting cylinder fixedly installed on the limiting seat, an adjusting block connected to the output end of the adjusting cylinder and slidably connected to the limiting seat, and a pull rod movably connected to the adjusting block and connected to the guide mechanism;

[0035] The guiding mechanism includes a drive block built into the limiting seat and movably connected to the limiting seat, and an installation plate disposed in the limiting seat;

[0036] Both the drive block and the mounting plate are hexagonal structures. The mounting plate has a placement hole. The limiting mechanism passes through the mounting plate, with one end abutting against the inner wall of the drive block and the other end located in the placement hole.

[0037] The limiting seat is also provided with an arc-shaped through hole, and the pull rod is provided with a protrusion, which is connected to the drive block.

[0038] Furthermore, the limiting mechanism includes a drive link that passes through the mounting plate, an abutment block connected to one end of the drive link, a connecting groove for placing the drive link on the mounting plate, and a return spring located in the connecting groove.

[0039] One end of the drive linkage is mushroom-shaped, and the bottom of the mushroom shape abuts against one end of the return spring. The other end of the drive linkage abuts against the inner wall of the drive block. By moving the drive block, the position of the adjacent abutting block is changed.

[0040] Beneficial Effects: This invention discloses a prefabricated automatic drainage cable trench. To facilitate the drainage of accumulated water in the cable trench, the device includes a drainage section. By positioning one end of the U-shaped drain pipe higher than the sealing seat, some liquid remains in the drain pipe during normal operation of the cable trench. This liquid evaporates, altering the temperature within the cable trench and regulating its operation. Simultaneously, the drainage section includes a cutting-off mechanism controlled by a floating box. This prevents excessive water accumulation in the pipes during the flood season, which could lead to water flowing into the cable trench through the drain pipe and drain pipe, causing damage to the cables or corrosion of their outer surface due to prolonged immersion in sewage. The floating box in this device moves as the water flow in the drain pipe rises, engaging the cutting-off mechanism and effectively cutting off the drain pipe. This prevents sewage from flowing into the cable trench through the drain pipe and drain pipe, thus avoiding cable damage and ensuring normal cable operation. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the prefabricated automatic drainage cable trench of the present invention;

[0042] Figure 2This is a schematic diagram of the cable trench structure of the present invention;

[0043] Figure 3 This is a schematic diagram of the drainage section structure of the present invention;

[0044] Figure 4 This is a schematic diagram of the drainage seat structure of the present invention;

[0045] Figure 5 This is a schematic diagram of the floating box structure of the present invention;

[0046] Figure 6 This is a schematic diagram of the adapter unit structure of the present invention;

[0047] Figure 7 This is a schematic diagram of the ventilation section structure of the present invention;

[0048] Figure 8 This is a schematic diagram of the support structure of the present invention;

[0049] Figure 9 This is a perspective view of the support portion of the present invention;

[0050] Figure 10 This is a schematic diagram of the guide component structure of the present invention;

[0051] Figure 11 This is a schematic diagram of the reset spring structure of the present invention;

[0052] Figure 12 This is a schematic diagram of the sealing seat structure of the present invention.

[0053] Reference numerals: 1. Connector; 2. Cable trench; 21. Cable trench groove; 22. Pull plate; 23. Placement frame; 24. Drainage channel; 25. Drainage section; 251. Drainage pipe; 252. Drainage pipe; 253. Interface seat; 254. Guide pipe; 255. Drainage seat; 256. Floating box; 257. Traction rod; 258. Drive rod; 259. Guide rod; 2510. Support pipe; 2511. Connecting pipe; 2512. Drainage seat; 2513. Guide seat; 2514. Sealing seat; 3. Adapter unit; 31. Support frame; 32. Ventilation section; 321. Mounting seat; 322. Fan; 323. Ventilation seat 3231, First guide component; 3232, Second guide component; 3233, Third guide component; 3234, Fourth guide component; 33, Support part; 331, Traction rope; 332, Traction hook; 333, First traction roller; 334, Second traction roller; 335, Third traction roller; 336, Slider; 337, Pulley; 338, Guide component; 3381, Limit seat; 3382, Adjusting cylinder; 3383, Adjusting block; 3384, Pull rod; 3385, Drive block; 3386, Drive connecting rod; 3387, Abutment block; 3388, Mounting plate; 3389, Return spring; 34, Rewinding motor. Detailed Implementation

[0054] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0055] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0056] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0057] This invention discloses a prefabricated automatic drainage cable trench, with reference to Figures 1-12 ,include:

[0058] Connector 1, arc-shaped structure; cable trench 2 body, two in number, respectively connected to both ends of connector 1; adapter unit 3, disposed on connector 1, used for supporting and laying cables; the cable trench 2 body includes cable trench 21, pull plate 22 built into the inner wall of cable trench 21, multiple placement racks 23 symmetrically arranged on pull plate 22, drainage groove 24 opened at the bottom of cable trench 21, and drainage part 25 disposed in drainage groove 24; the drainage part 25 includes a section opened at the bottom of cable trench 21. The cable trench 21 includes a placement cavity, a drain pipe 252 located in the placement cavity, a guide pipe 251 connected to the drain pipe 252, and a drain component located inside the drain pipe 252 and connected to the guide pipe 251. Along the depth direction of the cable trench 21, the guide pipe 251 is closer to the transfer unit 3 than the drain pipe 252. The drain pipe 252 is provided with a drain outlet. Water in the cable trench 21 flows into the drain pipe 252 along the guide pipe 251 and the drain component, and is discharged from the drain outlet.

[0059] This device includes a drainage section 25. By positioning one end of the U-shaped drain pipe 251 higher than the sealing seat 2514, some liquid will remain in the drain pipe 251 during normal operation of the cable trench 2. Under high temperature conditions, this liquid evaporates, thereby changing the temperature in the cable trench 2 and regulating the temperature. At the same time, the drainage section 25 includes a cutting mechanism, which is controlled by a floating box 256. This prevents excessive water accumulation in the pipes during the flood season, which could cause water to flow into the cable trench 2 through the drain pipe 252 and the drain pipe 251, damaging the cables in the cable trench 2 or causing corrosion to the outer surface of the cables due to prolonged immersion in sewage. The floating box 256 in this device moves when the water flow height in the drain pipe 252 rises, enabling the cutting mechanism to be activated and thus cutting off the drain pipe 254, preventing sewage from flowing into the cable trench 2 through the drain pipe 252 and the drain pipe 251.

[0060] The drainage component includes an interface seat 253 connected to the drain pipe 252 and communicating with the drainage pipe 251, a drain seat 2512 screwed to the interface seat 253, a guide pipe 254 and a connecting pipe 2511 connected to the drain seat 2512, a support pipe 2510 sleeved on the connecting pipe 2511, a guide seat 2513 connected to one end of the support pipe 2510, a sealing seat 2514 built into the guide seat 2513, a cutting-off mechanism connected to the sealing seat 2514, and a guide seat 2513 provided on the guide pipe 2511. One end of the flow tube 254 is located in the guide seat 2513 with a flow seat 255; the connecting tube 2511 is sleeved on the flow tube 254; the drain seat 2512 is provided with a plurality of drainage through holes that connect to the area between the outer wall of the flow tube 254 and the inner wall of the connecting tube 2511; the flow seat 255 is provided with a plurality of connecting ports, which are used to inject liquid into the area between the outer wall of the flow tube 254 and the inner wall of the connecting tube 2511; the sealing seat 2514 is adapted to the flow seat 255 to cut off the flow of liquid.

[0061] When there is too much water in the cable trench 2, the water can enter the drainage pipe 251 through the drainage channel 24 in the cable trench 2. Then the water can flow through the drainage pipe 251 and the interface seat 253 into the guide pipe 254. As the water level in the guide pipe 254 rises, the water can move to the top of the guide pipe 254 and then be discharged from the drainage seat 255. Then the water can enter the area between the outer wall of the guide pipe 254 and the inner wall of the connecting pipe 2511 through the connecting port on the drainage seat 255, and flow out from the drainage hole on the drainage seat 2512. This allows the water to be located in the drainage pipe 252, completing the water discharge work and preventing the cable from being soaked in sewage due to excessive water flow in the cable trench 2, which would cause damage to the cable.

[0062] The support pipe 2510 outside the connecting pipe 2511 can fix the relative position of the connecting pipe 2511 and prevent the pipe from shifting and loosening due to water flow impact. On the other hand, it can adapt to environmental changes such as vibration and settlement that may exist in the cable trench 2, ensure the long-term stability of the drainage structure, and reduce drainage failure problems caused by structural misalignment.

[0063] The drainage component, through the cooperation between the double-layer structure of the guide pipe 254 and the connecting pipe 2511, and through the connection between the drainage through hole on the drainage seat 2512 and the flow outlet of the diversion seat 255, enables the water to flow in a directional manner; it avoids the water from being blocked in a single channel, ensuring that the water flows out quickly along a preset path. It is suitable for scenarios where the water volume in the cable trench 2 increases suddenly, and can quickly reduce the water level in the trench and reduce the soaking time of the cable.

[0064] The cutting-off mechanism includes a floating box 256 sleeved on the support pipe 2510, a traction rod 257 connected to the floating box 256, a drive rod 258 movably connected to the traction rod 257, and a guide rod 259 connected to the drive rod 258, extending into the guide seat 2513 and connected to the sealing seat 2514; the drive rod 258 is movably connected to the guide seat 2513, and the floating box 256 is closer to the guide seat 2513 than the drain seat 2512; by moving the floating box 256 upward, the flow of liquid is cut off, preventing the drain pipe 252 from transporting liquid into the cable trench 21; when the amount of water transported in the pipe is too large, the water in the pipe can move along the drain pipe 252 and the drain seat 2512 to the connecting pipe 2511, since the floating box 256 is located between the drain seat 255 and the drain seat. Between 2512, the accumulated water will come into contact with the floating box 256, causing the floating box 256 to move on the support pipe 2510. The moving floating box 256 can drive the traction rod 257 to move, which in turn can drive the drive rod 258 to move. Then, the drive rod 258 can drive the guide rod 259 to move, thereby causing the sealing seat 2514 to move closer to the drain seat 255. This allows the sealing seat 2514 to seal the top of the guide pipe 254, preventing backflow of accumulated water and thus preventing water from entering the cable trench 2 and damaging the cable due to the increase of water in the pipe. At the same time, as the amount of water in the drain pipe 252 increases, the squeezing force of the sealing seat 2514 on the guide pipe 254 will also increase, thereby gradually increasing the sealing effect.

[0065] In a further embodiment, when abnormal water pressure occurs in the drain pipe 252, such as when the drain pipe 252 is fully loaded during heavy rain or when the downstream water level backflows, the sealing seat 2514 can tightly fit the diversion seat 255 to block the water flow from flowing back into the diversion pipe 254, thereby preventing the accumulated water from flowing back into the cable trench 2 and fundamentally protecting the cable from the corrosion of backflowing water.

[0066] The adapter unit 3 includes a support frame 31 connected to the connector 1, multiple ventilation sections 32 disposed on the support frame 31, and multiple winding motors 34 and multiple support sections 33 respectively disposed on the support frame 31; the winding motors 34 are connected to the support sections 33; the support frame 31 is provided with multiple ventilation cavities for placing the ventilation sections 32; by operating the winding motors 34, the support sections 33 can be driven to move, thereby changing the position of the third traction roller 335, thereby adjusting the curvature of the cable. When adding new cables or installing some easily damaged cables, the bending degree can be reduced, avoiding excessive bending of the cable and causing cable damage; this device transforms large bending angles into multiple bending angles to avoid excessive temperature at the bending angle, and the ventilation sections 32 are provided to prevent excessive temperature in the cable area and thus avoid cable damage; the winding motors 34 can be replaced with rotating bolts, and one end of the traction rope 331 is wound around the rotating bolts, and the length of the traction rope 331 is changed by the number of rotations.

[0067] The ventilation unit 32 includes a ventilation seat 323 fixedly mounted on the support frame 31, a mounting base 321 detachably connected to the ventilation seat 323, and a fan 322 built into the mounting base 321; the support frame 31 is also provided with an arc-shaped bracket; the ventilation seat 323 includes a first guide member 3231, a second guide member 3232 disposed on the first guide member 3231 and having an arc, a third guide member 3233 connected to the first guide member 3231, and a fourth guide member 3234 connected to the third guide member 3233; the ventilation seat 323 has a U-shaped structure, and there is a gap between the second guide member 3232 and the fourth guide member 3234, allowing gas to move in the ventilation seat 323 and be discharged from the gap, thus dissipating heat from the bent cable at the corner. When heat dissipation or to prevent condensation of gas in the cable trench 2 is required, the fan 322 starts working. The moving fan 322 generates airflow, which first contacts the first guide member 3231. Then, part of the airflow moves along the first guide member 3231 to the third guide member 3233. At this time, the airflow moves in an arc. Then, the gas is discharged through the gap between the second guide member 3232 and the fourth guide member 3234. Because the gap is small, the airflow velocity is large when the gas is discharged through the gap. At this time, the airflow can carry the surrounding gas and generate a large amount of gas. Therefore, it can cool the cable at the corner, thereby reducing the temperature of the cable after bending and ensuring that the cable can work normally.

[0068] The support portion 33 includes a plurality of first traction rollers 333 disposed on the support frame 31, a second traction roller 334 connected to the arc-shaped bracket, at least two sliders 336 slidably connected to the arc-shaped bracket, a third traction roller 335 connected to the sliders 336, a pulley 337 connected to the sliders 336 and located on the arc-shaped bracket, a traction hook 332 connected to the support frame 31, and a traction rope 331 for connecting the traction hook 332, the second traction roller 334, the third traction roller 335 and the first traction rollers 333; one end of the traction rope 331 is connected to the output end of the winding motor 34, and the other end is disposed on the support frame 31; the arc-shaped bracket is provided with a groove for placing the pulley 337;

[0069] The winding motor 34 has a winding wheel at its output end, and the arc-shaped bracket has a positioning hole. The slider 336 is fitted with the positioning hole by a positioning pin to complete the positioning of the slider 336.

[0070] When the position of the third traction roller 335 needs to be adjusted, the positioning pin is driven to move away from the positioning hole. Then the winding motor 34 starts to work. The moving winding motor 34 can drive its output end to rotate. The moving winding motor 34 can drive the traction rope 331 to move. The moving traction rope 331 can drive the third traction roller 335 to move. By adjusting the position of the slider 336 on the arc bracket, the position of the third traction roller 335 on the arc bracket is changed. Thus, by working the winding motor 34, the area of ​​the slider 336 that is far away from the winding motor 34 on the arc bracket is changed. The curvature of the cable is adjusted according to the requirements to reduce the bending degree of the cable and avoid damage to the cable due to excessive bending. At the same time, the number of sliders 336 can be increased or decreased accordingly to ensure that the cable can complete the bending work.

[0071] By precisely adjusting the bending degree of slider 336, the bending radius of the cable can be controlled within a safe range, meeting the minimum bending radius standard for cables. This reduces mechanical stress damage to the internal structure of the cable and lowers the risk of failure due to excessive bending. For some special cables, such as high-voltage cables and data transmission cables, the electrical performance is sensitive to bending conditions. Excessive bending may lead to impedance changes, increased signal attenuation, or a decrease in breakdown voltage. Adjusting the bending degree ensures that the cable operates within a reasonable deformation range, maintaining stable transmission efficiency and electrical safety. Adjusting the position of the third traction roller 335 adjusts the force distribution of the cable in the traction path, avoiding sudden changes in traction resistance caused by excessively sharp local bends, and reducing cable slippage, deviation, or surface wear. This makes the traction process smoother and ensures processing accuracy.

[0072] The third traction roller 335 is also provided with a guide 338 for limiting the cable; the guide 338 includes a limiting seat 3381 connected to the third traction roller 335, a drive mechanism connected to the limiting seat 3381, a guide mechanism connected to the drive mechanism, and a limiting mechanism connected to the guide mechanism; the drive mechanism can drive the guide mechanism to move, and the moving guide mechanism can adjust the position of the limiting mechanism, thereby completing the limiting and clamping work of the cable; and the reset spring 3389 can make slight adjustments and limit the cable when it bends, avoiding rigid connection between the cable and the limiting mechanism, which would lead to cable damage.

[0073] The driving mechanism includes an adjusting cylinder 3382 fixedly mounted on the limiting seat 3381, an adjusting block 3383 connected to the output end of the adjusting cylinder 3382 and slidably connected to the limiting seat 3381, and a pull rod 3384 movably connected to the adjusting block 3383 and connected to the guide mechanism; the guide mechanism includes a driving block 3385 built into the limiting seat 3381 and movably connected to the limiting seat 3381, and a mounting plate 3388 disposed in the limiting seat 3381; both the driving block 3385 and the mounting plate 3388 are hexagonal structures, the mounting plate 3388 is provided with a placement hole, the limiting mechanism penetrates the mounting plate 3388, one end of which abuts against the inner wall of the driving block 3385, and the other end of the limiting mechanism... The end is located inside the placement hole; the limiting seat 3381 is also provided with an arc-shaped through hole, the pull rod 3384 is provided with a protrusion, the protrusion is connected to the drive block 3385; the limiting mechanism includes a drive connecting rod 3386 that passes through the mounting plate 3388, an abutment block 3387 connected to one end of the drive connecting rod 3386, the mounting plate 3388 is provided with a connecting groove for placing the drive connecting rod 3386, and a return spring 3389 located in the connecting groove; one end of the drive connecting rod 3386 is mushroom-shaped, the bottom of the mushroom shape abuts against one end of the return spring 3389, and one end of the drive connecting rod 3386 abuts against the inner wall of the drive block 3385, and the position of the adjacent abutment block 3387 is changed by the movement of the drive block 3385;

[0074] When the cable needs to be clamped and limited, the adjusting cylinder 3382 starts to work. The moving adjusting cylinder 3382 can drive the adjusting block 3383 to move on the limiting seat 3381. Then the moving limiting seat 3381 can drive the pull rod 3384 to move. Then the moving pull rod 3384 can drive the driving block 3385 to move. Since the driving block 3385 has a hexagonal structure, the driving connecting rod 3386 can move on the inner wall of the driving block 3385. When the driving block 3385 is at the vertex of the hexagonal driving block 3385, the driving connecting rod 3386 can move with the cooperation of the return spring 3389, thereby expanding the area between the abutment blocks 3387 to facilitate the insertion of the cable. Then the adjusting cylinder 3382 works in the opposite direction, thereby reducing the area between the abutment blocks 3387 and making the abutment blocks 3387 abut against the optical cable, thereby completing the limiting work of the optical cable.

[0075] By employing a flexible structure, including a return spring 3389 and an abutment block 3387, the cable's outer sheath can be prevented from wearing, insulation layer crushing, or even internal conductor deformation due to excessive clamping force or hard contact with the cable surface during rigid clamping. Simultaneously, when the clamping force reaches a certain level, the return spring 3389 will deform to buffer the pressure, preventing pressure concentration. This is particularly suitable for surface-sensitive communication optical cables and high-voltage cables. During cable traction or transport, slight positional deviations may occur, such as axial movement or radial sway. The return spring 3389 can absorb these deviations through slight deformation, ensuring that the abutment block 3387 remains in contact with the cable surface, preventing jamming or loosening caused by rigid fixing and ensuring cable stability.

[0076] Working principle explanation: When there is too much water in the cable trench 2, the water can enter the drainage pipe 251 through the drainage channel 24 in the cable trench 2. Then, the water can flow through the drainage pipe 251 and the interface seat 253 into the guide pipe 254. As the water level in the guide pipe 254 rises, the water can move to its top and then be discharged from the drainage seat 255. The water can then enter the area between the outer wall of the guide pipe 254 and the inner wall of the connecting pipe 2511 through the connecting port on the drainage seat 255, and flow out from the drainage hole on the drainage seat 2512. This allows the water to be located in the drainage pipe 252, completing the water discharge work and preventing the cable from being soaked in sewage due to excessive water flow in the cable trench 2, which would cause damage to the cable. When there is too much water in the pipe, the water in the pipe can move through the drainage pipe 252 and the drainage seat 2512 to... In the connecting pipe 2511, since the floating box 256 is located between the drain seat 255 and the drainage seat 2512, the accumulated water will contact the floating box 256 and cause it to move on the support pipe 2510. The moving floating box 256 can drive the traction rod 257 to move, which in turn drives the drive rod 258 to move. The drive rod 258 can then drive the guide rod 259 to move, thereby causing the sealing seat 2514 to move closer to the drain seat 255. This allows the sealing seat 2514 to seal the top of the guide pipe 254, preventing backflow of accumulated water and thus preventing water from entering the cable trench 2 and damaging the cable due to increased water accumulation in the pipe. At the same time, as the amount of water in the drainage pipe 252 increases, the squeezing force of the sealing seat 2514 on the guide pipe 254 also increases, thereby gradually increasing the sealing effect.

[0077] When heat dissipation or to prevent gas condensation in the cable trench 2 is required, the fan 322 starts working. The moving fan 322 generates airflow, which first contacts the first guide member 3231. Then, part of the airflow moves along the first guide member 3231 to the third guide member 3233. At this time, the airflow moves in an arc. Then, the gas is discharged through the gap between the second guide member 3232 and the fourth guide member 3234. Because the gap is small, the airflow velocity is large when the gas is discharged through the gap. At this time, the airflow can carry the surrounding gas and move, thereby generating a large amount of gas, which can cool the cable at the corner.

[0078] When the position of the third traction roller 335 needs to be adjusted, the positioning pin is driven to move away from the positioning hole. Then the winding motor 34 starts to work. The moving winding motor 34 can drive its output end to rotate. The moving winding motor 34 can drive the traction rope 331 to move. The moving traction rope 331 can drive the third traction roller 335 to move. By adjusting the position of the slider 336 on the arc bracket, the position of the third traction roller 335 on the arc bracket is changed. Thus, by working the winding motor 34, the area of ​​the slider 336 on the arc bracket is changed. The curvature of the cable is adjusted according to the requirements to reduce the bending degree of the cable and avoid damage to the cable due to excessive bending. At the same time, the number of sliders 336 can be increased or decreased accordingly to ensure that the cable can complete the bending work.

[0079] When the cable needs to be clamped and positioned, the adjusting cylinder 3382 starts working. The moving adjusting cylinder 3382 can drive the adjusting block 3383 to move on the limiting seat 3381. Then, the moving limiting seat 3381 can drive the pull rod 3384 to move. Then, the moving pull rod 3384 can drive the driving block 3385 to move. Since the driving block 3385 has a hexagonal structure, the driving connecting rod 3386 can move on the inner wall of the driving block 3385. When the driving block 3385 is at the vertex of the hexagonal driving block 3385, the driving connecting rod 3386 can move with the cooperation of the return spring 3389, thereby expanding the area between the abutment blocks 3387 to facilitate the insertion of the cable. Then, the adjusting cylinder 3382 works in the opposite direction, thereby reducing the area between the abutment blocks 3387 and making the abutment blocks 3387 abut against the optical cable, thus completing the clamping work of the optical cable.

[0080] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A prefabricated automatic drainage cable trench, characterized in that, include: Connector (1), arc-shaped structure; The cable trench (2) body consists of two parts, which are respectively connected to both ends of the connector (1); The adapter unit (3) is disposed on the connector (1) and is used to support and lay the cable; The cable trench (2) body includes a cable trench (21), a pull plate (22) built into the inner wall of the cable trench (21), a plurality of placement racks (23) symmetrically arranged on the pull plate (22), a drainage channel (24) opened at the bottom of the cable trench (21), and a drainage part (25) provided in the drainage channel (24). The drainage section (25) includes a placement cavity opened in the cable trench (21), a drainage pipe (252) located in the placement cavity, a drain pipe (251) connected to the drainage pipe (252), and a drainage component located in the drainage pipe (252) and connected to the drain pipe (251); Along the depth direction of the cable trench (21), the drain pipe (251) is closer to the transfer unit (3) than the drain pipe (252). The drain pipe (252) is provided with a drain outlet. The water in the cable trench (21) flows into the drain pipe (252) along the drain pipe (251) and the drain piece, and is discharged from the drain outlet.

2. The prefabricated automatic drainage cable trench according to claim 1, characterized in that: The drainage component includes an interface seat (253) connected to the drain pipe (252) and communicating with the drainage pipe (251), a drain seat (2512) screwed to the interface seat (253), a guide pipe (254) and a connecting pipe (2511) connected to the drain seat (2512), a support pipe (2510) sleeved on the connecting pipe (2511), a guide seat (2513) connected to one end of the support pipe (2510), a sealing seat (2514) built into the guide seat (2513), a cutting-off mechanism connected to the sealing seat (2514), and a drainage seat (255) disposed at one end of the guide pipe (254) and located in the guide seat (2513). The connecting pipe (2511) is sleeved on the guide pipe (254), and the drain seat (2512) is provided with a plurality of drainage through holes in the area between the outer wall of the connecting guide pipe (254) and the inner wall of the connecting pipe (2511); The drainage seat (255) is provided with multiple communication ports, which are used to inject liquid into the area between the outer wall of the drainage tube (254) and the inner wall of the connecting tube (2511); The sealing seat (2514) is adapted to the drain seat (255) to cut off the flow of liquid.

3. The prefabricated automatic drainage cable trench according to claim 2, characterized in that: The cutting mechanism includes a floating box (256) sleeved on the support tube (2510), a traction rod (257) connected to the floating box (256), a drive rod (258) movably connected to the traction rod (257), and a guide rod (259) connected to the drive rod (258) and extending into the guide seat (2513) and connected to the sealing seat (2514). The drive rod (258) is movably connected to the guide seat (2513), and the floating box (256) is closer to the guide seat (2513) than the drain seat (2512). By moving the floating box (256) upward, the flow of liquid is cut off, preventing the drain pipe (252) from transporting liquid into the cable trench (21).

4. The prefabricated automatic drainage cable trench according to claim 3, characterized in that: The adapter unit (3) includes a support frame (31) connected to the connector (1), a plurality of ventilation parts (32) provided on the support frame (31), and a plurality of winding motors (34) and a plurality of support parts (33) respectively provided on the support frame (31). The winding motor (34) is connected to the support part (33); The support frame (31) is provided with a plurality of ventilation cavities for placing the ventilation section (32).

5. The prefabricated automatic drainage cable trench according to claim 4, characterized in that: The ventilation unit (32) includes a ventilation seat (323) fixedly installed on the support frame (31), a mounting seat (321) detachably connected to the ventilation seat (323), and a fan (322) built into the mounting seat (321). The support frame (31) is also provided with an arc-shaped bracket; The ventilation seat (323) includes a first drainage element (3231), a second drainage element (3232) disposed on the first drainage element (3231) and having an arc, a third drainage element (3233) connected to the first drainage element (3231), and a fourth drainage element (3234) connected to the third drainage element (3233). The ventilation seat (323) has a U-shaped structure. There is a gap between the second drain member (3232) and the fourth drain member (3234), which allows the gas to move in the ventilation seat (323) and be discharged from the gap to dissipate heat from the bent cable.

6. The prefabricated automatic drainage cable trench according to claim 5, characterized in that: The support (33) includes a plurality of first traction rollers (333) disposed on the support frame (31), a second traction roller (334) connected to the arc-shaped bracket, at least two sliders (336) slidably connected to the arc-shaped bracket, a third traction roller (335) connected to the sliders (336), a pulley (337) connected to the sliders (336) and located on the arc-shaped bracket, a traction hook (332) connected to the support frame (31), and a traction rope (331) for connecting the traction hook (332), the second traction roller (334), the third traction roller (335) and the first traction rollers (333). One end of the traction rope (331) is connected to the output end of the winding motor (34), and the other end is set on the support frame (31); The arc-shaped bracket is provided with a groove for placing the pulley (337).

7. The prefabricated automatic drainage cable trench according to claim 6, characterized in that: The third traction roller (335) is also provided with a guide (338) for limiting the cable. The guide member (338) includes a limiting seat (3381) connected to the third traction roller (335), a drive mechanism connected to the limiting seat (3381), a guide mechanism connected to the drive mechanism, and a limiting mechanism connected to the guide mechanism.

8. The prefabricated automatic drainage cable trench according to claim 7, characterized in that: The driving mechanism includes an adjusting cylinder (3382) fixedly installed on the limiting seat (3381), an adjusting block (3383) connected to the output end of the adjusting cylinder (3382) and slidably connected to the limiting seat (3381), and a pull rod (3384) movably connected to the adjusting block (3383) and connected to the guide mechanism. The guiding mechanism includes a drive block (3385) built into the limiting seat (3381) and movably connected to the limiting seat (3381), and an installation plate (3388) disposed in the limiting seat (3381). Both the drive block (3385) and the mounting plate (3388) are hexagonal structures. The mounting plate (3388) is provided with a placement hole. The limiting mechanism passes through the mounting plate (3388), with one end abutting against the inner wall of the drive block (3385) and the other end located in the placement hole. The limiting seat (3381) is also provided with an arc-shaped through hole, and the pull rod (3384) is provided with a protrusion, which is connected to the drive block (3385).

9. The prefabricated automatic drainage cable trench according to claim 8, characterized in that: The limiting mechanism includes a drive link (3386) that passes through the mounting plate (3388), an abutment block (3387) connected to one end of the drive link (3386), a connecting groove for placing the drive link (3386) on the mounting plate (3388), and a return spring (3389) located in the connecting groove. One end of the drive link (3386) is mushroom-shaped, and the bottom of the mushroom shape abuts against one end of the return spring (3389). One end of the drive link (3386) abuts against the inner wall of the drive block (3385). By moving the drive block (3385), the position of the adjacent abutting block (3387) is changed.

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