Frost-heaving-resistant cable channel with efficient thermal insulation layer

Abstract

The utility model relates to the technical field of cable channels, in particular to an anti-frost-heaving cable channel with a high-efficiency thermal insulation layer, which prevents a cable from shaking in the channel, avoids abrasion of a sheath due to external force influence, and reduces the probability of faults such as short circuit. Comprising a channel wall which is buried underground; the clamping mechanism is arranged in the channel wall and is used for fixing the cable; the detection mechanism is arranged in the channel wall and is used for detecting the state of the cable; the clamping mechanism comprises a support frame fixedly mounted in the channel wall; the mounting base plate is fixedly mounted on the supporting frame; the clamping ring is rotationally arranged on the mounting base plate; the screw rods are circumferentially and uniformly arranged on the clamping ring, and the screw rods are in threaded fit with the clamping ring; and the number of the clamping plates is equal to that of the screw rods, and each screw rod is rotationally provided with one clamping plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cable channel, particularly to an anti-frost cable channel with high-efficiency thermal insulation layer. BACKGROUND

[0002] In the power system, cables are important carriers for power transmission, and their laying and maintenance are crucial. Especially in underground environments, cable channels are the main laying path for cables, and their design and structure directly affect the safe operation and maintenance efficiency of cables. Traditional cable channel design often ignores the particularity of underground environments, such as temperature fluctuations, soil frost heaving, and other factors, which may cause cable damage, performance degradation, or even failure.

[0003] Firstly, underground cable channels are easily affected by external temperature. In winter, in an environment with large temperature differences throughout the year, frost heaving has strong destructive power, which may cause channel structure damage and leakage, affecting cable safety. Therefore, it is necessary to develop a cable channel with high-efficiency thermal insulation layer to reduce the impact of temperature fluctuations on cables and channel structures.

[0004] Secondly, the fixing method of cables in the channel is also one of the key factors affecting the safe operation of cables. Traditional fixing methods mostly use simple binding or buckling, which may not provide sufficient support and protection when cables are subjected to external forces such as soil frost heaving pressure, causing cables to loosen or damage. Therefore, a more stable and adjustable clamping mechanism needs to be designed to accommodate cables of different diameters and ensure the stability of cables under extreme conditions. SUMMARY

[0005] To solve the above technical problems, the utility model provides an anti-frost cable channel with high-efficiency thermal insulation layer to prevent cable movement in the channel, avoid wear and tear of the outer skin due to external forces, and reduce the probability of short circuit and other faults.

[0006] The anti-frost cable channel with high-efficiency thermal insulation layer of the utility model comprises:

[0007] Channel wall, buried in the ground;

[0008] Clamping mechanism, arranged inside the channel wall, for fixing the cable;

[0009] Detection mechanism, arranged inside the channel wall, for detecting the cable state;

[0010] The clamping mechanism comprises:

[0011] Support frame, fixedly installed inside the channel wall;

[0012] Mounting base plate, fixedly installed on the support frame;

[0013] The clamping ring is rotationally arranged on the mounting base plate;

[0014] A plurality of screw rods are arranged on the clamping ring in a circumferential uniform manner, and the screw rods are threadedly matched with the clamping ring;

[0015] A plurality of clamping plates are arranged on the screw rods, and the number of the clamping plates is equal to that of the screw rods.

[0016] The anti-frost cable trench with the efficient thermal insulation layer also comprises four fixed guide wheels, which are rotationally arranged on the mounting base plate, and the fixed guide wheels are used for guiding the rotation of the clamping ring on the mounting base plate.

[0017] The anti-frost cable trench with the efficient thermal insulation layer comprises a handle arranged on each screw rod.

[0018] The anti-frost cable trench with the efficient thermal insulation layer also comprises a clamping mechanism.

[0019] A first motor is fixedly installed on the mounting base plate.

[0020] A gear is fixedly connected with the output end of the first motor and is controlled to rotate by the first motor.

[0021] A tooth ring is arranged on the circumferential outer end surface of the clamping ring and is engaged with the gear.

[0022] The anti-frost cable trench with the efficient thermal insulation layer also comprises a detection mechanism.

[0023] A second motor is fixedly installed on the mounting base plate.

[0024] A transmission belt is horizontally arranged on the supporting frame and is driven to transmit by the second motor.

[0025] A sliding block is arranged on the transmission belt in a single-side clamping manner.

[0026] An optical detector is fixedly installed on the sliding block and is horizontally arranged on the supporting frame.

[0027] A guide rod is fixedly installed on the supporting frame and is used for guiding the horizontal sliding of the sliding block.

[0028] The anti-frost cable trench with the efficient thermal insulation layer comprises a waterproof layer arranged in the trench wall.

[0029] The anti-frost cable trench with the efficient thermal insulation layer comprises a thermal insulation layer arranged in the clamping mechanism, and the thermal insulation layer is attached to the waterproof layer.

[0030] The anti-frost cable trench with the efficient thermal insulation layer also comprises a lifting frame, the lifting frame is fixedly installed in the inside of the trench wall, an arc-shaped plate is arranged on the lifting frame, and the lifting frame is used for lifting the cable.

[0031] Compared with the prior art, the anti-frost cable trench with the efficient thermal insulation layer has the beneficial effects that:

[0032] The cable is clamped in the clamping ring firmly, the cable is prevented from shaking in the trench, the outer skin is prevented from being abraded due to external force, and the probability of faults such as short circuit is reduced; the detection mechanism is arranged on the supporting frame, once the parameter is abnormal, an alarm is sent in time, the maintenance personnel are reminded to check and repair, the real-time monitoring of the cable state is realized, the reliability of the power system operation is improved, the power supply interruption time caused by the cable fault is reduced, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] The anti-frost cable trench with the efficient thermal insulation layer will be further described below in combination with the drawings.

[0034] Figure 1 It is a structural schematic view of the anti-frost cable trench with the efficient thermal insulation layer;

[0035] Figure 2 It is an enlarged structural schematic view of the clamping mechanism;

[0036] Figure 3 It is an enlarged structural schematic view of the detection mechanism;

[0037] Figure 4 It is a sectional structural schematic view of the anti-frost cable trench with the efficient thermal insulation layer;

[0038] In the drawings, 1, trench wall; 11, waterproof layer; 12, thermal insulation layer; 13, lifting frame; 2, clamping mechanism; 21, supporting frame; 22, mounting base plate; 23, clamping ring; 24, screw rod; 25, clamping plate; 26, fixed guide wheel; 27, first motor; 28, gear; 29, gear ring; 3, detection mechanism; 31, second motor; 32, transmission belt; 33, sliding block; 34, optical detector; 35, guide rod. DETAILED DESCRIPTION

[0039] The specific implementation of the anti-frost cable trench with the efficient thermal insulation layer will be further described in detail below in combination with the drawings and the embodiments. The following embodiments are used to illustrate the anti-frost cable trench with the efficient thermal insulation layer, but are not used to limit the scope of the anti-frost cable trench with the efficient thermal insulation layer.

[0040] As shown in the drawings, Figures 1 to 4 The anti-frost cable trench with the efficient thermal insulation layer comprises:

[0041] The trench wall 1 is embedded underground;

[0042] The clamping mechanism 2 is arranged in the inside of the trench wall 1 and is used for fixing the cable;

[0043] A detection mechanism 3 is arranged inside the channel wall 1 to detect the cable state.

[0044] The clamping mechanism 2 comprises:

[0045] A support frame 21 is fixedly installed inside the channel wall 1.

[0046] An installation base plate 22 is fixedly installed on the support frame 21.

[0047] A clamping ring 23 is rotationally arranged on the installation base plate 22.

[0048] A plurality of screw rods 24 are circumferentially and uniformly arranged on the clamping ring 23, and the screw rods 24 are threadedly matched with the clamping ring 23.

[0049] A plurality of clamping plates 25 are equal in number to the screw rods 24, and each screw rod 24 is rotationally provided with one clamping plate 25.

[0050] The working process and principle of the device are as follows: when the cable needs to be fixed, the support frame 21 is fixedly installed inside the channel wall 1 to provide a support basis for the entire clamping mechanism; the installation base plate 22 is fixed on the support frame 21 to serve as a connection and positioning of the clamping ring 23; the clamping ring 23 is rotationally arranged on the installation base plate 22 to facilitate adjustment of its angle to adapt to cables at different positions; the plurality of screw rods 24 are circumferentially and uniformly arranged on the clamping ring 23 and threadedly matched with the clamping ring 23; by rotating the screw rod 24, the screw rod 24 will move along the radial direction of the clamping ring 23 due to the transmission effect of the thread; each screw rod 24 is provided with one clamping plate 25, and the clamping plate 25 will approach or move away from the cable with the movement of the screw rod 24; when the clamping plate 25 contacts the cable, the clamping plate 25 will continue to rotate the screw rod 24 to apply pressure to the cable, thereby firmly clamping the cable in the clamping ring 23, preventing the cable from shaking in the channel, avoiding abrasion of the outer skin due to external force, and reducing the probability of short circuit and other faults; the detection mechanism 3 is arranged on the support frame 21, and once the parameter is abnormal, an alarm is sent in time to remind the maintenance personnel to investigate and repair, thereby realizing real-time monitoring of the cable state, improving the reliability of the power system operation, reducing the power supply interruption time caused by cable failure, and improving the maintenance efficiency.

[0051] Four fixed guide wheels 26 are also included, each of which is rotatably arranged on the mounting base plate 22 and used to guide the rotation of the clamping ring 23 on the mounting base plate 22; the fixed guide wheels 26 are usually located around the track of the rotation of the clamping ring 23 to provide stable support and guidance; the fixed guide wheels 26 are connected to the mounting base plate 22 through bearings to ensure that they can rotate smoothly without generating excessive resistance due to friction; the rolling contact of the fixed guide wheels 26 can significantly reduce friction and wear compared to sliding contact, not only improving the smoothness of the rotation of the clamping ring 23, but also prolonging the service life of the clamping mechanism and the entire cable trench; during the rotation of the clamping ring, the fixed guide wheels 26 can also stabilize the clamping ring 23, preventing it from shifting or shaking due to uneven stress, thereby ensuring that the clamping mechanism can accurately and securely clamp the cable.

[0052] Each screw rod 24 is provided with a handle; the operator holds the handle and applies a rotating force to transmit the force to the screw rod using the lever principle; at the same time, since the screw rod is threadedly connected with the clamping ring, the rotating force will be converted into linear motion of the screw rod; this linear motion is transmitted to the cable through the clamping plate to achieve clamping or releasing of the cable; the handle makes it easy for users to hold and operate, reducing the labor intensity of the operator and improving work efficiency; through mechanisms such as manual operation, threaded connection, and lever principle, precise control and adjustment of the clamping mechanism are achieved, ensuring the stability and safety of the cable in the trench, improving work efficiency, and reducing labor intensity.

[0053] The clamping mechanism 2 also includes:

[0054] A first motor 27 is fixedly installed on the mounting base plate 22;

[0055] A gear 28 is fixedly connected with the output end of the first motor 27 and controlled to rotate by the first motor 27;

[0056] A tooth ring 29 is arranged on the circumferential outer end surface of the clamping ring 23 and meshes with the gear 28; when it is necessary to adjust the angle of the clamping ring 23, the first motor 27 is started; the first motor 27 starts to operate, and the output shaft of the first motor 27 drives the gear 28 fixedly connected thereto to rotate; since the gear 28 meshes with the tooth ring 29, the rotation of the gear 28 drives the tooth ring 29 to rotate; since the tooth ring 29 is arranged on the circumferential outer end surface of the clamping ring 23, the rotation of the tooth ring 29 drives the clamping ring 23 to rotate around the rotation center on the mounting base plate 22, so as to realize the adjustment of the angle of the clamping ring 23 to adapt to the fixing requirements of the cable at different positions; the precise angle adjustment of the clamping ring 23 by the motor can ensure that the detection mechanism 3 fully covers each part of the cable sheath and avoids the detection blind area, greatly improves the accuracy and comprehensiveness of detection, and can timely find the potential safety hazards of the cable sheath at different angles to ensure the stable operation of the power system.

[0057] As shown in Figure 3 , the detection mechanism 3 comprises:

[0058] A second motor 31 is fixedly installed on the mounting base plate 22.

[0059] A transmission belt 32 is horizontally arranged on the support frame 21 and is driven to transmit by the second motor 31.

[0060] A sliding block 33 is single-sidedly clamped on the transmission belt 32.

[0061] An optical detector 34 is fixedly installed on the sliding block 33 and is horizontally arranged on the support frame 21.

[0062] A guide rod 35 is fixedly installed on the support frame 21 and is used for guiding the horizontal sliding of the sliding block 33. The working process and principle of the detection mechanism 3 are as follows: when it is necessary to detect the state of the cable, the second motor 31 is started; along with the starting of the motor, the transmission belt 32 starts to horizontally transmit; since the sliding block 33 is single-sidedly clamped on the transmission belt 32, along with the movement of the transmission belt, the sliding block also slides horizontally along the support frame 21; in the process of the movement of the sliding block, the optical detector 34 can monitor the state of the cable in real time; the optical detector detects the temperature, damage condition and other parameters of the cable by emitting and receiving light; the data collected by the optical detector are recorded and analyzed to evaluate the state of the cable; if an abnormal condition is detected, the system rotates to send a power alarm and moves in the corresponding direction to take corresponding measures; so that the optical detector 34 can detect the cable according to the preset horizontal path, avoid omission, timely find the potential problems of the cable, and provide strong guarantee for the safe and stable operation of the power system; once an abnormality is detected, maintenance can be performed in time to reduce the power failure risk caused by cable failure and improve the reliability of power supply.

[0063] As Figure 4 shown, the channel wall 1 is provided with a waterproof layer 11 inside; the main function of the waterproof layer is to block the penetration of external moisture into the channel interior through the channel wall; when the external water source tries to enter through the channel wall, the waterproof layer will play the role of the first line of defense, blocking the moisture outside the channel; due to the presence of the waterproof layer, the channel interior can maintain a relatively dry environment; help to reduce the risk of performance degradation or failure of the cable due to damp; moisture penetration not only causes damage to the cable, but also causes damage to the channel structure; the waterproof layer can prevent moisture from eroding the channel wall, thereby prolonging the service life of the channel.

[0064] As Figure 4 shown, the clamping mechanism 2 is provided with a heat preservation layer 12 inside, and the heat preservation layer 12 is in close contact with the waterproof layer 11; the heat preservation layer 12 is arranged inside the clamping mechanism 2 and in close contact with the waterproof layer 11 inside the channel wall 1; so that the heat preservation layer is located inside the cable channel close to the cable, which can directly play a heat preservation role for the space where the cable is located, and at the same time prevent external moisture from entering by using the waterproof layer to avoid the influence of moisture on the performance of the heat preservation layer, both of which work together to create a good operating environment for the cable; in winter or when the outside temperature is low, the low temperature outside tries to pass into the cable channel interior through the channel wall; at this time, the waterproof layer 11 first blocks the penetration of external moisture, preventing the rapid loss of heat due to the entry of moisture and the possible freezing and swelling phenomenon; then, the heat preservation layer 12 plays a role, which slows down the conduction speed of heat from the cable channel interior to the low temperature environment outside; due to the low thermal conductivity of the heat preservation layer, the heat transfer resistance increases when passing through the heat preservation layer, so that the temperature in the cable channel can be maintained at a relatively stable level, reducing the influence of temperature fluctuations on the performance of the cable; in summer, the heat preservation layer can also prevent the transmission of external high temperature, keeping the temperature in the cable channel from being too high, ensuring the normal operation of the cable; ensures the stability of the temperature inside the cable channel, reduces the damage to the cable and the channel structure caused by temperature fluctuations and moisture intrusion, improves the safety and reliability of the cable operation, and reduces the maintenance cost of the power system.

[0065] The lifting frame 13 is fixedly installed inside the channel wall 1, and an arc-shaped plate is arranged on the lifting frame 13, and the lifting frame 13 is used for lifting the cable; the lifting frame 13 is fixedly installed inside the channel wall 1, and stable support is provided for the cable; the arc-shaped plate arranged on the lifting frame is a component directly in contact with the cable, and the arc-shaped design is matched with the circular cross section of the cable; during the cable laying process, the cable is placed on the arc-shaped plate of the lifting frame 13; the arc-shaped plate can be attached to the outer surface of the cable, and multiple-point support is provided for the cable; as the cable is laid and extended in the channel, the lifting frame 13 is distributed at intervals along the channel wall 1, and continuously plays a lifting role on the cable; during the cable operation, the lifting frame 13 always bears part of the gravity of the cable, prevents the cable from excessively sagging due to its own gravity, avoids friction caused by the cable directly contacting the bottom of the channel, and can also reduce the abrasion of the cable on the outer skin due to shaking.

[0066] The anti-frost cable channel with the high-efficiency thermal insulation layer has the installation mode, the connection mode or the setting mode which are all common mechanical modes, and as long as the beneficial effects can be achieved, the implementation can be performed.

[0067] The preferred embodiments of the utility model are described above, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A frost-protected cable trench with a high-efficiency thermal insulation layer, characterized in that, The utility model relates to a cable detection device, including: Channel wall, the channel wall is buried in the ground; Clamping mechanism, be provided in the channel wall inside for fixed cable; Detection mechanism, be provided in the channel wall inside for detecting cable state; The clamping mechanism includes: Support frame, fixed mounting in the channel wall inside; Mounting baseplate, fixed mounting on the support frame; Clamping ring, rotation setting on the mounting baseplate; Several screw rods, each the screw rod circumferentially uniform arrangement setting on the clamping ring, the screw rod with clamping ring screw cooperation; Several clamping plates, the clamping plate with the screw rod number is equal, each the screw rod on rotation setting has a clamping plate.

2. The anti-frost cable channel with high-efficiency thermal insulation layer according to claim 1, characterized in that, Still include four fixed guide pulley, four The fixed guide pulley rotation setting on the mounting baseplate, the fixed guide pulley is used to guide the clamping ring rotation on the mounting baseplate.

3. The frost-protected cable trench with high-efficiency insulation layer according to claim 1, wherein, Each the screw rod is provided with a handle.

4. The frost-protected cable trench with high-efficiency insulation layer according to claim 1, wherein, The clamping mechanism further includes: First motor, fixed mounting on the mounting baseplate; Gear, with first motor output fixed connection, rotation is controlled through first motor; Gear ring, setting on the clamping ring circumferential outer end surface, with the gear meshing.

5. The frost-protected cable trench with high-efficiency insulation layer according to claim 1, wherein, The detection mechanism includes: Second motor, fixed mounting on the mounting baseplate; Transmission belt, horizontal transmission setting on the support frame, drive transmission through second motor; Slide, the slide unilateral clamping setting on the transmission belt; Optical detector, the optical detector fixed mounting on the slide, the optical detector horizontal sliding setting on the support frame; Guide rod, fixed mounting on the support frame, for guiding the slide horizontal sliding.

6. The frost-protected cable trench with high-efficiency insulation layer according to claim 1, wherein, The channel wall inside is provided with waterproof layer.

7. The frost-protected cable trench with high-efficiency insulation layer according to claim 6, characterized in that, The clamping mechanism inside is provided with heat preservation layer, and the heat preservation layer is mutually attached with the waterproof layer.

8. The frost-protected cable trench with high-efficiency insulation layer according to claim 1, wherein, Still include the lifting frame, the lifting frame fixed mounting in the channel wall inside, the lifting frame on setting has arc plate, and the lifting frame is used to lift cable.

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