Integrated air-exhausting and moisture-removing device for cable trench

Abstract

The invention discloses an integrated air exhaust and moisture removal device for a cable trench, and belongs to the technical field of air exhaust and moisture removal of cable trenches, the integrated air exhaust and moisture removal device comprises a traction sleeve, one end of the traction sleeve is connected with conveying equipment, and the other end of the traction sleeve extends into the cable trench for air exhaust and moisture removal. According to the invention, after the fixing frame and the traction sleeve are fed from the access hole of the cable trench, the traction sleeve is moved from the middle vacant position of the cable trench to the deep position of the cable trench through external conveying equipment, when the dehumidification mechanism rotates, water adhered to the surface of a peripheral cable can be scraped and dehumidified, and when interference occurs in the cable trench, the cable trench can be cleaned by the traction sleeve. The traction interference is reduced through partial radial movement of the dehumidification mechanism around the buffer mechanism, the stability of rotary dehumidification scraping and sweeping in a complex environment in a cable trench is improved, the scraping and sweeping roller can be kept to be attached to the surface of a cable, the interference generated by obstacles in the trench can be reduced, and the sweeping effect is kept.

Description

Technical Field

[0001] This invention belongs to the field of cable trench ventilation and dehumidification technology, and particularly relates to an integrated ventilation and dehumidification device for cable trenches. Background Technology

[0002] Cable trenches, as important channels for cable laying and maintenance in power transmission and distribution systems, are often in relatively enclosed or semi-enclosed environments for extended periods. Due to their location, mostly underground or semi-underground, air circulation within cable trenches is poor, and they are susceptible to external climate changes and groundwater infiltration, leading to increased internal humidity. When humidity exceeds the standard for an extended period, condensation easily forms on the cable sheath and metal joint surfaces, causing corrosion of metal components, decreased insulation performance, and potentially even cable breakdown and short circuits, seriously threatening the safe and stable operation of the power supply system. Therefore, effective ventilation and dehumidification of the inside of cable trenches are necessary measures to ensure the reliability of cable operation.

[0003] In related technologies, ordinary exhaust fans rely solely on air convection to remove some moisture. Due to their unidirectional airflow, they cannot achieve uniform extraction of moisture from long distances, corners, and dead angles within the trench, resulting in moisture retention. Furthermore, relying solely on airflow makes it difficult to handle condensation adhering to the cable surface and water accumulation at the bottom of the trench, thus limiting their dehumidification effect. Cable trenches have complex structures with bends, widening, and narrowing, making it impossible for fixed exhaust fans to flexibly adapt to the trench structure. Mobile equipment, on the other hand, lacks stable and reliable fit and buffering, leaving room for improvement. Summary of the Invention

[0004] The purpose of this invention is to address the problem that fixed exhaust fans cannot flexibly adapt to the trench structure, while mobile equipment lacks stable and reliable fit and buffering, leaving room for improvement. Therefore, this invention proposes an integrated ventilation and dehumidification device for cable trenches.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An integrated ventilation and dehumidification device for cable trenches includes a traction sleeve, one end of which is connected to a conveying device, and the other end of which extends into the cable trench for ventilation and dehumidification. It also includes:

[0007] The traveling mechanism is connected to the outside of the traction sleeve, and the working area is adjusted by moving the traveling mechanism within the cable trench;

[0008] The two fixed frames are connected opposite each other to the outer wall of the end of the traction sleeve, forming a dehumidification operation area between the two fixed frames. The fixed frame near the traveling mechanism is configured to be rotatably connected to the traveling mechanism.

[0009] The dehumidification mechanism comprises multiple dehumidification mechanisms arranged circumferentially around the axis of the traction sleeve. The bottom of the dehumidification mechanism is installed between the dehumidification operation areas of the two side fixed frames via fixed seats. The dehumidification mechanism is configured to move radially within the fixed frames to fully conform to the dehumidification surface of the cable trench.

[0010] A buffer mechanism is connected between the dehumidification mechanisms on both sides and the fixed frame. The buffer mechanism includes a track groove with a buffer stroke and a buffer element inside the track groove. The dehumidification mechanism moves radially along the buffer stroke inside the track groove and contacts the buffer element to absorb energy and buffer.

[0011] As a further description of the above technical solution:

[0012] The dehumidification mechanism includes:

[0013] A scraper seat and a gas-liquid slip ring rotatably connected to its inner cavity, the scraper seat being connected to one side of the fixed seat;

[0014] Scraping rollers, multiple scraping rollers are arranged around the axis of the gas-liquid slip ring inside the scraping seat;

[0015] Multiple liquid inlet seats are arranged around the axis of the gas-liquid slip ring inside the scraper seat. The liquid inlet seats are connected to the liquid outlet of the gas-liquid slip ring. The liquid inlet of the gas-liquid slip ring extends into the scraper seat and through the bottom pipe of the scraper seat to the traction sleeve.

[0016] The nozzles are arranged in an array along the width of the inlet seat cavity, and the pipes of the nozzles are connected to the outlet of the gas-liquid slip ring.

[0017] As a further description of the above technical solution:

[0018] Also includes:

[0019] The guide plate is connected to the bottom of the liquid inlet seat cavity via two bottom rods. The guide plate and the opening of the liquid inlet seat form a guide gap. The cleaning medium sprayed from the nozzle is dispersed at the bottom of the guide plate and then accelerated out through the guide gap for purging.

[0020] As a further description of the above technical solution:

[0021] It also includes: scraper blades, two scraper blades connected to the inner sides of the top opening of the scraper seat, the front end of the scraper blades being tapered.

[0022] As a further description of the above technical solution:

[0023] The traveling mechanism includes:

[0024] The travel disc has a rotating ring rotatably connected to one side, and the other side of the rotating ring is connected to a fixed frame. The fixed frame rotates by rotating the rotating ring. The rotating ring is connected to a drive unit installed on one side of the travel disc. The drive unit drives the rotating ring to rotate.

[0025] Rollers, multiple rollers are arranged around the axis of the traveling disk, and the rollers are rotatably connected to a groove opened on the outer side of the traveling disk. The direction of rotation of the rollers is the same as the direction of travel of the traveling disk.

[0026] As a further description of the above technical solution:

[0027] Also includes:

[0028] A sealing pad, with multiple sealing pads arranged around the outside of the travel plate, seals the gaps around the travel plate;

[0029] The telescopic sleeve is connected to the groove opened on the outer periphery of the travel disk, and one end of the telescopic sleeve extending out of the groove is connected to the sealing pad.

[0030] The first spring, two first springs are connected to both sides of the inner cavity of the telescopic sleeve, and the two ends of the first spring are respectively connected to the inner cavity of the groove and one side of the sealing pad.

[0031] As a further description of the above technical solution:

[0032] The buffer mechanism further includes:

[0033] A sliding block is slidably connected to the track groove, and a guide wheel is rotatably connected to the top of the sliding block. The guide wheel extends to the radial outer edge of the fixed frame, and the contact friction of the fixed frame is reduced by rotating the guide wheel.

[0034] The slide block is slidably connected to the track groove, and the contact surface between the slide block and the sliding block is provided with an arc-shaped groove, which contacts the outer arc surface of the sliding block.

[0035] The telescopic rod is connected to the bottom of the sliding block, and the outside of the telescopic rod is connected to the inner cavity of the track groove through the mounting parts;

[0036] The first slide rod is connected to the bottom of the sliding block, and the two first slide rods are located on both sides of the telescopic rod respectively;

[0037] The second spring has its two ends connected to the opposite surfaces of the slide and the mounting component, respectively.

[0038] A connecting plate, multiple connecting plates are respectively connected to one end of the hinge rod at the corresponding position, and a sleeve is connected between the other ends of the multiple connecting plates, and the sleeve is connected to the conversion side.

[0039] As a further description of the above technical solution:

[0040] It also includes an adaptation mechanism connected between the fixed frame and the outer periphery of the traction sleeve. The adaptation mechanism absorbs the impact of the dehumidification mechanism through its contraction. The adaptation mechanism includes:

[0041] Mounting base, installed on the outer side of the rotating sleeve that rotates outside the traction sleeve;

[0042] The guide sleeves are connected to the mounting base in a sliding manner, and the guide sleeves on both sides are slidably connected to the mounting base. The guide rods are installed in the mounting base.

[0043] Hinged blocks, multiple hinged blocks are respectively connected to one side of the guide sleeve and the fixed seat;

[0044] Connecting rods, two connecting rods are connected between adjacent hinge blocks on both sides;

[0045] The third spring is sleeved on the outside of the slide rod. Both ends of the third spring are connected to one side of the adjacent guide sleeve. The energy is absorbed and buffered by the compression of the third spring by the guide sleeves on both sides.

[0046] As a further description of the above technical solution:

[0047] It also includes: a retraction mechanism, which includes multiple retraction covers connected to the bottom of multiple fixed seats. The bottom of the retraction cover is connected to a retraction box via a connecting pipe. The retraction box is connected to one side of the connecting plate at the corresponding position. The retraction box is connected to an external negative pressure suction device. The retraction mechanism recovers the water scraped by the dehumidification mechanism.

[0048] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0049] 1. In this invention, after the fixed frame and traction sleeve are sent into the inspection port of the cable trench, the traction sleeve is moved from the empty position in the middle of the cable trench to the depth of the cable trench by an external conveying device. When the dehumidification mechanism rotates, it can scrape and dehumidify the moisture adhering to the surface of the surrounding cable. When interference occurs in the cable trench, the dehumidification mechanism moves radially around the buffer mechanism to reduce traction interference and improve the stability of rotational dehumidification and scraping in the complex environment of the cable trench. It can keep the scraping roller in contact with the cable surface and reduce interference caused by obstacles in the trench, thus maintaining the cleaning effect.

[0050] 2. In this invention, when the scraper roller performs scraping, the cleaning medium sprayed from the nozzle is dispersed at the bottom of the guide plate and then accelerated through the guide gap. The accelerated spraying of the cleaning medium washes the scraper roller and the contact surface. The cleaning medium sprayed through the chamfer of the guide plate can clean the dust adhering to the scraper roller during its rotation, improving the integrated ventilation and dehumidification effect in the cable trench. When the scraper roller rotates, it can contact the scraper strips at both sides. The scraper strips can scrape the outer surface of the scraper roller, cleaning the surface dirt after continuous operation. The dirt after scraping can be discharged from the two-sided return mechanism under the guidance of the rinsing liquid, avoiding the residue in the cable trench that affects the dehumidification effect, avoiding water and dust residue, and improving the synergistic treatment effect.

[0051] 3. In this invention, through the designed buffer mechanism, when the driving part of the traveling mechanism drives the rotating ring to rotate, the rotating ring can drive the connecting plate and the buffer mechanism to pull the fixed frame to rotate. When the fixed frame rotates, the centrifugal force of rotation can make the fixed seat slide in the track groove through the sliding blocks on both sides, which can make the radially moving dehumidification mechanism fully unfold outward to fit the adjacent cable trench cleaning surface. The rotating dehumidification mechanism can scrape the condensed water in the cable trench, and in conjunction with the recovery mechanism, improve the ventilation and dehumidification effect. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the overall structure of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0053] Figure 2 This is a schematic diagram of the dehumidification mechanism of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0054] Figure 3 This is a schematic diagram showing the partial disassembled structure of the dehumidification mechanism of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0055] Figure 4 This is a schematic diagram of the unfolded structure of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0056] Figure 5 This is a schematic diagram of the pull-back mechanism of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0057] Figure 6 The present invention proposes Figure 5 Enlarged structural diagram of section A;

[0058] Figure 7 This is a schematic diagram of the assembly structure of the adaptation mechanism of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0059] Figure 8 This is a schematic diagram of the buffer mechanism structure of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0060] Figure 9 This is a schematic diagram of the guide plate assembly structure of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0061] Figure 10 The present invention proposes Figure 9 Enlarged structural diagram of section B;

[0062] Figure 11This is a schematic diagram of the scraper roller assembly structure of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0063] Figure 12 This is a partially disassembled structural diagram of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0064] Figure 13 This is a schematic diagram of the disassembled structure of the traveling mechanism of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0065] Figure 14 This is a schematic diagram of the traveling mechanism assembly structure of an integrated ventilation and dehumidification device for cable trenches proposed in this invention.

[0066] Legend:

[0067] 1. Traction sleeve; 2. Fixing frame; 3. Fixing base; 4. Dehumidification mechanism; 401. Scraper seat; 402. Scraper roller; 403. Liquid inlet seat; 404. Guide plate; 405. Nozzle; 406. Gas-liquid slip ring; 407. Scraper blade; 5. Traveling mechanism; 501. Traveling disc; 502. Telescopic sleeve; 503. Sealing pad; 504. First spring; 505. Roller; 506. Rotating ring; 507. Drive unit; 6. Buffer mechanism; 601. 602. Track groove; 603. Hinge rod; 604. Telescopic rod; 605. First slide rod; 606. Second spring; 607. Guide wheel; 608. Sliding block; 609. Connecting plate; 6000. Slide seat; 7. Retraction mechanism; 701. Retraction box; 702. Connecting pipe; 703. Retraction cover; 8. Adaptation mechanism; 801. Connecting rod; 802. Hinge block; 803. Guide sleeve; 804. Guide rod; 805. Third spring; 806. Mounting base. Detailed Implementation

[0068] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0069] Please see Figures 1-14 This invention provides a technical solution: an integrated ventilation and dehumidification device for cable trenches, comprising a traction sleeve 1, one end of which is connected to a conveying device, and the other end of which extends into the cable trench for ventilation and dehumidification, wherein the device further comprises:

[0070] The traveling mechanism 5 is connected to the outside of the traction sleeve 1, and the working area is adjusted by moving the traveling mechanism 5 in the cable trench;

[0071] Fixed frame 2, two fixed frames 2 are connected opposite to each other on both sides of the outer wall of the end of the traction sleeve 1, and a dehumidification operation area is formed between the two fixed frames 2. The fixed frame 2 near the travel mechanism 5 is configured to be rotatably connected to one side of the travel mechanism 5.

[0072] Dehumidification mechanism 4, multiple dehumidification mechanisms 4 are arranged circumferentially around the axis of traction sleeve 1. The bottom of the dehumidification mechanism 4 is installed between the dehumidification operation areas of the two side fixed frames 2 through the fixed base 3. The dehumidification mechanism 4 is configured to move radially within the fixed frame 2 to fully fit the dehumidification surface of the cable trench.

[0073] The buffer mechanism 6 is connected between the two dehumidification mechanisms 4 and the fixed frame 2. The buffer mechanism 6 includes a track groove 601 with a buffer stroke. The track groove 601 has a buffer element. The dehumidification mechanism 4 moves radially along the buffer stroke in the track groove 601 and contacts the buffer element to absorb energy and buffer.

[0074] Specifically: After the fixed frame 2 and the traction sleeve 1 are sent into the inspection port of the cable trench, the traction sleeve 1 is moved from the empty position in the middle of the cable trench to the depth of the cable trench by the external conveying equipment. The flushing fluid and return fluid pipes on the front side are arranged in the traction sleeve 1 and connected to the suction equipment and pumping equipment on the rear side. When the dehumidification mechanism 4 rotates, it can scrape and dehumidify the moisture adhering to the surface of the surrounding cables. When there is interference in the cable trench, the dehumidification mechanism 4 can reduce the traction interference by moving radially around the buffer mechanism 6, improve the stability of the rotational dehumidification and scraping in the cable trench, and maintain the cleaning effect. The traction sleeve 1 can move longitudinally along the cable trench to enter the depth of the trench to work, realize long-term continuous ventilation and dehumidification, and avoid the limitation of the existing exhaust fan only ventilating at the trench opening.

[0075] Please see Figures 3-4 and Figures 9-12 The dehumidification mechanism 4 includes:

[0076] The scraper seat 401 and the gas-liquid slip ring 406 rotatably connected to its inner cavity, wherein the scraper seat 401 is connected to one side of the fixed seat 3;

[0077] Scraping rollers 402, multiple scraping rollers 402 are arranged around the axis of the gas-liquid slip ring 406 inside the scraping seat 401;

[0078] Liquid inlet seat 403, multiple liquid inlet seats 403 are arranged around the axis of gas-liquid slip ring 406 in the scraper seat 401. The liquid inlet seat 403 is connected to the liquid outlet of gas-liquid slip ring 406. The liquid inlet of gas-liquid slip ring 406 extends into the scraper seat 401 and extends into the traction sleeve 1 through the bottom pipe of scraper seat 401.

[0079] The pipe extending into the traction ring can be connected to the liquid outlet of the terminal pumping equipment at the end.

[0080] Nozzle 405, multiple nozzles 405 are arranged in an array along the width direction of the inner cavity of liquid inlet seat 403, and the pipes of multiple nozzles 405 are connected to the liquid outlet of gas-liquid slip ring 406.

[0081] The guide plate 404 is connected to the bottom of the inner cavity of the liquid inlet seat 403 via two bottom rods. The guide plate 404 and the opening of the liquid inlet seat 403 form a guide gap. The cleaning medium sprayed from the nozzle 405 is dispersed through the bottom of the guide plate 404 and then accelerated to be sprayed out and purged through the guide gap.

[0082] Specifically: When the scraper roller 402 is scraping, the cleaning medium sprayed from the nozzle 405 is dispersed at the bottom of the guide plate 404 and then accelerated through the guide gap. The accelerated spraying of the cleaning medium washes the scraper roller 402 and the contact surface. The cleaning medium sprayed through the angular cut of the guide plate 404 can clean the dust adhering to the scraper roller 402 during the rotation and scraping process, thereby improving the integrated ventilation and dehumidification effect in the cable trench.

[0083] The radially expandable dehumidification mechanism 4 can fully fit the side wall of the cable trench, ensuring that the dehumidification scraping covers the trench wall, improving dehumidification efficiency and fitting stability;

[0084] It also includes: scraper 407, two scraper 407 are connected to the inner sides of the top opening of the scraper seat 401, and the front end of the scraper 407 is tapered;

[0085] By designing scraper 407, which is a flexible strip, it can contact the scraper 407 at both sides when the scraper roller 402 rotates. The scraper 407 can scrape the outer surface of the scraper roller 402 and clean the dirt on the surface of the scraper roller 402 after continuous operation. The dirt after scraping can be discharged from the two-side return mechanism 7 under the guidance of the rinsing liquid, avoiding the residue in the cable trench from affecting the dehumidification effect.

[0086] Please see Figures 13-14 The traveling mechanism 5 includes:

[0087] The travel disc 501 has a rotating ring 506 rotatably connected to one side, and the other side of the rotating ring 506 is connected to the fixed frame 2. The fixed frame 2 rotates by rotating the rotating ring 506. The rotating ring 506 is connected to the drive unit 507 installed on one side of the travel disc 501. The drive unit 507 drives the rotating ring 506 to rotate.

[0088] Rollers 505, multiple rollers 505 are arranged around the axis of the traveling disk 501. The rollers 505 are rotatably connected to the grooves opened on the outer side of the traveling disk 501. The rotation direction of the rollers 505 is the same as the traveling direction of the traveling disk 501.

[0089] It also includes: sealing pads 503, multiple sealing pads 503 are arranged around the outside of the travel disk 501, and the multiple sealing pads 503 seal the gaps around the travel disk 501;

[0090] The telescopic sleeve 502 is connected to the groove opened on the outer periphery of the traveling disk 501, and one end of the telescopic sleeve 502 extending out of the groove is connected to the sealing pad 503.

[0091] The first spring 504, two first springs 504 are connected to both sides of the inner cavity of the telescopic sleeve 502, and the two ends of the first spring 504 are respectively connected to the inner cavity of the groove and one side of the sealing pad 503.

[0092] Specifically: When the traction sleeve 1 moves in the cable trench via the traveling disc 501, the multiple rollers 505 on the periphery of the traveling disc 501 can reduce rotational stability to improve the stability of the front dehumidification mechanism 4 in the cable trench. In addition, during the process, the sealing pad 503 can be radially expanded by the elastic force of the first spring 504. The expansion of the sealing pad 503 can seal the space behind the cable trench, thereby reducing the dispersion of humid air and dust from the blown area to the cleaned area and improving the long-section cleaning effect in the cable trench.

[0093] The buffer mechanism 6 further includes:

[0094] A sliding block 607 is slidably connected in the track groove 601. A guide wheel 606 is rotatably connected to the top of the sliding block 607. The guide wheel 606 extends to the radial outer edge of the fixed frame 2. The contact friction of the fixed frame 2 is reduced by rotating the guide wheel 606.

[0095] The slide block 609 is slidably connected to the track groove 601. The contact surface between the slide block 609 and the sliding block 607 is provided with an arc-shaped groove, and the arc-shaped groove contacts the outer arc surface of the sliding block 607.

[0096] The telescopic rod 603 is connected to the bottom of the sliding block 607, and the telescopic rod 603 is externally connected to the inner cavity of the track groove 601 through a mounting component.

[0097] The first slide rod 604 is connected to the bottom of the sliding block 607, and the two first slide rods 604 are located on both sides of the telescopic rod 603 respectively;

[0098] The second spring 605 has its two ends connected to the slide 609 and the opposite surface of the mounting component, respectively.

[0099] A connecting plate 608 is provided, and multiple connecting plates 608 are respectively connected to one end of the hinge rod 602 at the corresponding position. A sleeve is connected between the other ends of the multiple connecting plates 608, and the sleeve is connected to the conversion side.

[0100] Specifically, through the designed buffer mechanism 6, when the drive part 507 of the traveling mechanism 5 drives the rotating ring 506 to rotate, the rotating ring 506 can drive the connecting plate 608 and the buffer mechanism 6 to pull the fixed frame 2 to rotate. When the fixed frame 2 rotates, the centrifugal force of rotation can make the fixed seat 3 slide in the track groove 601 through the sliding blocks 607 on both sides, so that the radially moving dehumidifying mechanism 4 can fully unfold outward to fit the adjacent cable trench cleaning surface. The rotating dehumidifying mechanism 4 can scrape the condensed water in the cable trench, and in conjunction with the return mechanism 7, improve the ventilation and dehumidification effect.

[0101] Furthermore, when the sliding block 607 slides in the track groove 601, the sliding block 607 can contact the slide seat 609. The slide seat 609 can extend and retract through the rear telescopic rod 603 and move through the first slide rod 604 to compress the external second spring 605. The second spring 605 can absorb the vibration of the slide seat 609 with its own elasticity, which is beneficial to improving the movement stability of the fixed seat 3.

[0102] Please see Figure 7 It also includes an adaptation mechanism 8, connected between the fixed frame 2 and the outer periphery of the traction sleeve 1. The adaptation mechanism 8 absorbs the impact of the dehumidification mechanism 4 through its contraction. The adaptation mechanism 8 includes:

[0103] Mounting base 806 is installed on the outer side of the rotating sleeve of the traction sleeve 1;

[0104] Guide sleeve 803, two guide sleeves 803 are slidably connected to the mounting base 806, and guide rods 804 are slidably mounted on both sides of the guide sleeves 803 on the same axis, and the guide rods 804 are installed in the mounting base 806;

[0105] Hinged blocks 802, multiple hinged blocks 802 are respectively connected to one side of the guide sleeve 803 and the fixed seat 3;

[0106] Connecting rod 801, two connecting rods 801 are connected between adjacent hinge blocks 802 on both sides;

[0107] The third spring 805 is sleeved on the outside of the slide rod, and both ends of the third spring 805 are respectively connected to one side of the adjacent guide sleeve 803;

[0108] Please see Figure 5 It also includes: a return mechanism 7, which includes multiple return covers 703 respectively connected to the bottom of multiple fixed seats 3. The bottom of the return cover 703 is connected to a return box 701 through a connecting pipe 702. The return box 701 is connected to one side of the connecting plate 608 at the corresponding position. The return box 701 is connected to an external negative pressure suction device. The return mechanism 7 recovers the water scraped by the dehumidification mechanism 4.

[0109] Specifically: Through the designed adaptation mechanism 8, when the fixed seat 3 unfolds outward, the fixed seat 3 can rotate around the connecting rod 801 via the bottom hinge block 802. The rotation of the connecting rod 801 can drive the hinge block 802 located at the bottom to drive the guide sleeve 803 to slide outside the guide rod 804. The movement of the guide sleeve 803 can compress the third spring 805. The third spring 805 can absorb the vibration of the fixed seat 3 with its own elasticity, which is beneficial to improve the contact effect between the dehumidification mechanism 4 and the surrounding cable trench through the radially movable fixed seat 3, thereby improving the cleaning and dehumidification effect. At the same time, it can absorb the impact of the fixed seat 3 by using the shaking elasticity, thereby improving the operational stability.

[0110] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0111] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated ventilation and dehumidification device for cable trenches, comprising a traction sleeve (1), one end of which is connected to a conveying device, and the other end of which extends into the cable trench for ventilation and dehumidification, characterized in that, Also includes: The traveling mechanism (5) is connected to the outside of the traction sleeve (1). The working area is adjusted by moving the traveling mechanism (5) in the cable trench. Fixed frame (2), two fixed frames (2) are connected opposite to each other on both sides of the outer wall of the end of the traction sleeve (1), and a dehumidification operation area is formed between the two fixed frames (2). The fixed frame (2) closer to the traveling mechanism (5) is configured to be rotatably connected to one side of the traveling mechanism (5). Dehumidification mechanism (4), multiple dehumidification mechanisms (4) are arranged circumferentially around the axis of the traction sleeve (1). The bottom of the dehumidification mechanism (4) is installed between the dehumidification operation areas of the two side fixed frames (2) through the fixed seat (3). The dehumidification mechanism (4) is configured to move radially within the fixed frame (2) to fully fit the dehumidification surface of the cable trench. A buffer mechanism (6) is connected between the two dehumidification mechanisms (4) and the fixed frame (2). The buffer mechanism (6) includes a track groove (601) with a buffer stroke. A buffer element is provided in the track groove (601). The dehumidification mechanism (4) moves radially along the buffer stroke in the track groove (601) and contacts the buffer element to absorb energy and buffer.

2. The integrated ventilation and dehumidification device for cable trenches according to claim 1, characterized in that, The dehumidification mechanism (4) includes: The scraper seat (401) and the gas-liquid slip ring (406) rotatably connected to its inner cavity, wherein the scraper seat (401) is connected to one side of the fixed seat (3); Scraping rollers (402), multiple scraping rollers (402) are arranged around the axis of the gas-liquid slip ring (406) inside the scraping seat (401); Liquid inlet seat (403), multiple liquid inlet seats (403) are arranged around the axis of the gas-liquid slip ring (406) inside the scraper seat (401). The liquid inlet seat (403) is connected to the liquid outlet of the gas-liquid slip ring (406). The liquid inlet of the gas-liquid slip ring (406) extends into the scraper seat (401) and extends into the traction sleeve (1) through the bottom pipe of the scraper seat (401). The nozzle (405) is arranged in an array along the width direction of the inner cavity of the liquid inlet seat (403), and the pipes of the multiple nozzles (405) are connected to the liquid outlet of the gas-liquid slip ring (406).

3. An integrated ventilation and dehumidification device for cable trenches according to claim 2, characterized in that, Also includes: The guide plate (404) is connected to the bottom of the inner cavity of the liquid inlet seat (403) by the bottom two rods. The guide plate (404) and the opening of the liquid inlet seat (403) form a guide gap. The cleaning medium sprayed from the nozzle (405) is dispersed through the bottom of the guide plate (404) and then accelerated out of the guide gap for purging.

4. An integrated ventilation and dehumidification device for cable trenches according to claim 2, characterized in that, Also includes: Scraper (407): Two scraper (407) are connected to the inner sides of the top opening of the scraper seat (401), and the front end of the scraper (407) is tapered.

5. An integrated ventilation and dehumidification device for cable trenches according to claim 1, characterized in that, The traveling mechanism (5) includes: The travel disk (501) has a rotating ring (506) rotatably connected to one side, and the other side of the rotating ring (506) is connected to the fixed frame (2). The fixed frame (2) rotates by rotating the rotating ring (506). The rotating ring (506) is connected to the drive unit (507) installed on one side of the travel disk (501). The drive unit (507) drives the rotating ring (506) to rotate. Rollers (505) are arranged around the axis of the traveling disk (501). The rollers (505) are rotatably connected to the grooves opened on the outside of the traveling disk (501). The rotation direction of the rollers (505) is the same as the traveling direction of the traveling disk (501).

6. An integrated ventilation and dehumidification device for cable trenches according to claim 5, characterized in that, Also includes: A sealing pad (503) is arranged around the outside of the travel disk (501) to seal the gaps around the travel disk (501); The telescopic sleeve (502) is connected to the groove opened on the outer periphery of the traveling disk (501), and one end of the telescopic sleeve (502) extending out of the groove is connected to the sealing pad (503). The first spring (504) is connected to both sides of the inner cavity of the telescopic sleeve (502). The two ends of the first spring (504) are respectively connected to the inner cavity of the groove and one side of the sealing pad (503).

7. An integrated ventilation and dehumidification device for cable trenches according to claim 1, characterized in that, The buffer mechanism (6) further includes: A sliding block (607) is slidably connected in the track groove (601). A guide wheel (606) is rotatably connected to the top of the sliding block (607). The guide wheel (606) extends to the radial outer edge of the fixed frame (2). The contact friction of the fixed frame (2) is reduced by rotating the guide wheel (606). The slide (609) is slidably connected in the track groove (601). The contact surface between the slide (609) and the sliding block (607) is provided with an arc-shaped groove, and the arc-shaped groove contacts the outer arc surface of the sliding block (607). Telescopic rod (603) is connected to the bottom of sliding block (607), and the outside of telescopic rod (603) is connected to the inner cavity of track groove (601) through mounting parts; The first slide rod (604) is connected to the bottom of the sliding block (607), and the two first slide rods (604) are located on both sides of the telescopic rod (603); The second spring (605) has its two ends connected to the slide (609) and the opposite surface of the mounting component, respectively. A connecting plate (608) is connected to one end of a hinge rod (602) at a corresponding position. A sleeve is connected between the other ends of the multiple connecting plates (608), and the sleeve is connected to the conversion side.

8. An integrated ventilation and dehumidification device for cable trenches according to claim 1, characterized in that, It also includes an adaptation mechanism (8), connected between the fixed frame (2) and the outer periphery of the traction sleeve (1), which absorbs the impact of the dehumidification mechanism (4) through the shrinkage of the adaptation mechanism (8). The adaptation mechanism (8) includes: Mounting base (806) is installed on the outside side of the rotating sleeve that rotates outside the traction sleeve (1); Guide sleeve (803), two guide sleeves (803) are slidably connected to the mounting base (806) in opposite directions, and guide rods (804) are slidably mounted on both sides of the guide sleeves (803) on the same axis, and the guide rods (804) are installed in the mounting base (806); Hinged blocks (802), multiple hinged blocks (802) are respectively connected to the opposite side of the guide sleeve (803) and the fixed seat (3); Connecting rod (801), two connecting rods (801) are connected between adjacent hinge blocks (802) on both sides; The third spring (805) is sleeved on the outside of the slide rod. The two ends of the third spring (805) are respectively connected to one side of the adjacent guide sleeve (803). The energy is absorbed and buffered by the compression of the third spring (805) by the two guide sleeves (803).

9. An integrated ventilation and dehumidification device for cable trenches according to claim 1, characterized in that, Also includes: The return mechanism (7) includes multiple return covers (703) respectively connected to the bottom of multiple fixed seats (3). The bottom of the return cover (703) is connected to a return box (701) through a connecting pipe (702). The return box (701) is connected to one side of the connecting plate (608) at the corresponding position. The return box (701) is connected to an external negative pressure suction device. The return mechanism (7) recovers the water scraped by the dehumidification mechanism (4).

Images