Cable trench ventilation device

Abstract

The utility model discloses a cable trench ventilation device, which relates to the technical field of cable protection and comprises a cover plate, a circulation assembly and an angle adjusting assembly. The cover plate is used for covering the cable trench, and the cover plate is provided with a ventilation hole for communicating the cable trench with the outside; the circulation assembly comprises a driving part and a fan blade assembly, the driving part is fixedly arranged at the ventilation hole, and the driving part is in transmission connection with the fan blade assembly and can drive the fan blade assembly to circumferentially rotate around the axis of the driving part; the angle adjusting assembly is in transmission connection with the fan blade assembly and the driving part, the driving part can drive the angle adjusting assembly and the fan blade assembly to synchronously rotate around the axis of the driving part, and the angle adjusting assembly can drive the fan blade assembly to overturn so as to adjust the windward angle of the fan blade assembly. According to the cable trench ventilation device provided by the utility model, the ventilation efficiency of the cable trench is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable protection technology, and in particular to a cable ventilation device. Background Technology

[0002] In power systems, cables, as the core carrier of power transmission, play a crucial role in the stability and security of power supply. For aesthetic and sealing purposes, cable trench covers are often sealed, turning the cable trench into an underground enclosed space. This enclosed environment easily leads to increased humidity, moisture accumulation within the trench, and even condensation, posing a serious threat to the insulation performance of the cables.

[0003] Therefore, in order to improve the service life of cables, holes are usually made in the cable trench cover and fans are installed to drive the air circulation and realize the gas exchange between the cable trench and the outside world, such as the cable ventilation device provided by patent CN201220717398.7. However, the working condition of the fan is usually difficult to adjust, and the flexibility and stability are poor, resulting in poor ventilation efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a cable trench ventilation device to solve the problems existing in the prior art and improve the ventilation efficiency of the cable trench.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a cable ventilation device, including a cover plate, a flow assembly, and an angle adjustment assembly. The cover plate is used to cover a cable trench and has ventilation holes connecting the cable trench to the outside. The flow assembly includes a drive unit and a fan blade assembly. The drive unit is fixedly disposed at the ventilation hole and is pulsatorically connected to the fan blade assembly, and can drive the fan blade assembly to rotate circumferentially around the axis of the drive unit. The angle adjustment assembly is pulsatorically connected to the fan blade assembly and the drive unit. The drive unit can drive the angle adjustment assembly and the fan blade assembly to rotate synchronously around the axis of the drive unit, and the angle adjustment assembly can drive the fan blade assembly to flip itself to adjust the windward angle of the fan blade assembly.

[0007] Preferably, it further includes a control component disposed on the cover plate, which is communicatively connected to the flow component and the angle adjustment component, and is capable of controlling the operation of the flow component and the angle adjustment component.

[0008] Preferably, it further includes a monitoring component for extending into the cable trench and monitoring environmental information within the cable trench; the monitoring component is communicatively connected to the control component, which is able to receive the environmental information and control the operation of the flow component and / or the angle adjustment component.

[0009] Preferably, the monitoring component includes a temperature sensor and a humidity sensor, which are used to monitor the temperature and humidity information within the cable trench, respectively.

[0010] Preferably, it also includes a limiting component, which is fixedly disposed on the drive unit, and can abut against the limiting component to limit the rotation angle during the rotation of the fan blade assembly.

[0011] Preferably, the fan blade assembly includes a plurality of blades distributed circumferentially along the drive unit, the angle adjustment component is connected to each of the blades in a transmission connection and drives each of the blades to rotate; and each of the blades can abut against the limiting component during the rotation process to limit the rotation angle.

[0012] Preferably, the limiting component includes multiple limiting rods, and each blade has a limiting rod on both sides. The angle adjustment component can drive each blade to rotate in the forward or reverse direction so that it can abut against the limiting rods on both sides to limit the rotation angle.

[0013] Preferably, the limiting component includes multiple limiting sensors that are communicatively connected to the control component. Each blade has a limiting sensor on both sides. The angle adjustment component can drive each blade to rotate in the forward or reverse direction so that it can abut against the limiting sensors on both sides, so that the limiting sensors send signals to the control component, and the control component can control the angle adjustment component to stop operating.

[0014] Preferably, the angle adjustment assembly includes multiple adjustment motors, and the drive ends of the multiple adjustment motors are respectively connected to the multiple blades to drive the corresponding blades to rotate.

[0015] Preferably, the drive unit includes a drive motor and a base. The drive motor is coaxially fixed to the ventilation hole through a fixed frame. The drive end of the drive motor is driven to the base. The fan blade assembly, the angle adjustment assembly, and the limiting component are all disposed on the base.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] The cable trench ventilation device provided by this utility model has ventilation holes provided on the cover plate of the cable trench, and a flow component is provided at the ventilation holes to drive gas flow. The drive part of the flow component drives the fan blade assembly to rotate to achieve gas flow inside and outside the cable trench. In addition, the angle adjustment component drives the fan blade assembly to rotate, which can adjust the windward angle of the fan blade assembly as needed, thereby improving the gas flow efficiency. Under different operating conditions, by adjusting the fan blade angle to better match the airflow, the airflow can pass more smoothly, reducing airflow turbulence and energy loss, thereby improving efficiency and achieving higher air volume and pressure output with lower energy consumption. Moreover, when the system demand changes, such as when different air volumes are required, the variable fan blade angle can be adjusted in time to maintain a stable operating state with the drive part, avoiding unstable phenomena such as surge and extending service life. Traditional fixed fan blade angle fans may generate a lot of noise under certain operating conditions due to airflow impact. By changing the fan blade angle, the airflow can be optimized, reducing the impact and vibration between the airflow and the fan blade, thereby effectively reducing the noise during operation and providing a quieter environment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an axonometric view of the cable-connected ventilation device provided in Embodiment 1;

[0020] Figure 2 This is another axial view of the cable-connected ventilation device provided in Embodiment 1;

[0021] Figure 3 This is a schematic diagram of the position of the limiting component provided in Embodiment 1.

[0022] In the diagram: 1-Cover plate; 11-Ventilation hole; 2-Flow component; 21-Drive unit; 211-Drive motor; 212-Base; 22-Fan blade assembly; 221-Blade; 3-Angle adjustment component; 31-Adjustment motor; 4-Control component; 5-Monitoring component; 51-Temperature sensor; 52-Humidity sensor; 6-Limiting component; 61-Limiting rod; 7-Fixing frame. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The purpose of this invention is to provide a cable trench ventilation device to solve the problems existing in the prior art and improve the ventilation efficiency of the cable trench.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] This embodiment provides a cable-connected ventilation device. Please refer to [link / reference]. Figure 1 and Figure 2 The system includes a cover plate 1, a flow assembly 2, and an angle adjustment assembly 3. The cover plate 1 is used to cover the cable trench and has a ventilation hole 11 that connects the cable trench to the outside. The flow assembly 2 includes a drive unit 21 and a fan blade assembly 22. The drive unit 21 is fixedly installed at the ventilation hole 11 and is connected to the fan blade assembly 22. The drive unit 21 can drive the fan blade assembly 22 to rotate circumferentially around the axis of the drive unit 21. The angle adjustment assembly 3 is connected to the fan blade assembly 22 and the drive unit 21. The drive unit 21 can drive the angle adjustment assembly 3 and the fan blade assembly 22 to rotate synchronously around the axis of the drive unit 21. The angle adjustment assembly 3 can also drive the fan blade assembly 22 to rotate itself so as to adjust the windward angle of the fan blade assembly 22.

[0028] Ventilation holes 11 are provided on the cover plate 1 of the cable trench, and a flow assembly 2 is provided at the ventilation holes 11 to drive gas flow. The drive unit 21 of the flow assembly 2 drives the fan blade assembly 22 to rotate, thereby realizing the gas flow inside and outside the cable trench. In addition, the angle adjustment assembly 3 drives the fan blade assembly 22 to rotate, which can adjust the windward angle of the fan blade assembly 33 as needed, thereby improving the gas flow efficiency. Under different operating conditions, by adjusting the fan blade angle to better match the airflow, the airflow can pass more smoothly, reducing airflow turbulence and energy loss, thereby improving efficiency and achieving higher air volume and pressure output with lower energy consumption. Moreover, when the system demand changes, such as when different air volumes are required, the variable fan blade angle can be adjusted in time to maintain a stable operating state with the drive unit, avoiding unstable phenomena such as surge and extending service life. Traditional fixed fan blade angle fans may generate a lot of noise under certain operating conditions due to airflow impact. By changing the fan blade angle, the airflow can be optimized, reducing the impact and vibration between the airflow and the fan blade, thereby effectively reducing the noise during operation and providing a quieter environment.

[0029] In the optional scheme of this embodiment, more preferably, the cable-connected ventilation device provided in this embodiment also includes a control component 4, which is disposed on the cover plate 1 and is communicatively connected to the flow component 2 and the angle adjustment component 3, and is capable of controlling the operation of the flow component 2 and the angle adjustment component 3; specifically, the control component 4 is configured as an operation panel, which is fixedly disposed on the outside of the cover plate 1, and can be communicatively connected to the drive part 21 of the flow component 2 and the angle adjustment component 3 via a cable, wherein a manual button can be provided on the operation panel, and the forward and reverse rotation of the flow component 2 and the angle adjustment component 3 can be controlled by the manual button.

[0030] In a preferred embodiment, the cable ventilation device provided in this embodiment further includes a monitoring component 5, which extends into the cable trench and can monitor the environmental information inside the cable trench. The monitoring component 5 is communicatively connected to the control component 4, which can receive environmental information and control the operation of the flow component 2 and / or the angle adjustment component 3. By monitoring the environmental information inside the cable trench, automatic control can be achieved through the built-in program of the control component 4. Specifically, when a poor environment is detected inside the cable trench, the drive unit 21 can be controlled to increase its rotation speed, and the angle adjustment component 3 can be controlled to adjust the angle of the fan blade assembly 22, so as to reduce noise as much as possible while improving the flow efficiency.

[0031] In the optional embodiment, more preferably, the monitoring component 5 includes a temperature sensor 51 and a humidity sensor 52, which are used to monitor the temperature and humidity information in the cable trench, respectively; the temperature sensor 51 and the humidity sensor 52 can extend into the cable trench and are connected to the control component 4 via cables.

[0032] In the optional solutions of this embodiment, a more preferred option is described in the following description: Figure 3 The cable-connected air-conditioning device provided in this embodiment also includes a limiting component 6, which is fixedly mounted on the drive unit 21. During the rotation of the fan blade assembly 22, it can abut against the limiting component 6 to limit the rotation angle, so that the fan blade assembly 22 can rotate within a specific range. Moreover, by abutting and limiting the fan blade assembly 22, the fan blade assembly 22 can be supported at the extreme position, thereby improving stability.

[0033] In the optional embodiment, more preferably, the fan blade assembly 22 includes a plurality of blades 221 distributed circumferentially along the drive unit 21. The angle adjustment assembly 3 is connected to each blade 221 and drives each blade 221 to rotate. During the rotation process, each blade 221 can abut against the limiting component 6 to limit the rotation angle. This allows each blade 221 to rotate within a specific range. Moreover, by abutting and limiting the blades 221, the blades 221 can be supported at the extreme position, thereby improving stability.

[0034] In the optional scheme of this embodiment, more preferably, the limiting component 6 includes multiple limiting rods 61, and each blade 221 is provided with a limiting rod 61 on both sides. The angle adjustment component 3 can drive each blade 221 to rotate in the forward or reverse direction so that it can abut against the limiting rods 61 on both sides to limit the rotation angle. Specifically, the limiting rods 61 on both sides of each blade 221 are symmetrically arranged along the axis of the blade 221. The specific position can be determined according to actual needs so that when the blade 221 abuts against the limiting rod 61, it can be in the required working state.

[0035] In the optional scheme of this embodiment, more preferably, the angle adjustment component 3 includes multiple adjustment motors 31, and the drive ends of the multiple adjustment motors 31 are respectively connected to the multiple blades 221 through clamping plates to achieve transmission, so as to drive the corresponding blades 221 to rotate; the adjustment motors 31 are set as bidirectional motors, and when the blades 221 abut against the limit rod 61, the adjustment motors 31 can stop rotating when encountering resistance, so as to avoid damaging the motor.

[0036] In the optional embodiment, more preferably, the drive unit 21 includes a drive motor 211 and a base 212. The drive motor 211 is coaxially fixed to the ventilation hole 11 via a fixing frame 7. The drive end of the drive motor 211 is connected to the base 212. The fan blade assembly 22, the angle adjustment assembly 3, and the limiting component 6 are all disposed on the base 212. The fixing frame 7 is hollowed out and fixedly disposed, such as by welding, at the ventilation hole 11, which serves to strengthen and fix the drive motor 211. The coaxial arrangement facilitates the uniform flow of air through the ventilation hole 11. The base 212 is fixedly connected to the drive end of the drive motor 211 so that it can be driven to rotate. Each adjustment motor 31 is circumferentially distributed in the base 212 and fixed by bolts. The drive end of the adjustment motor 31 extends out of the base 212 and is fixedly connected to the corresponding blade 221 for driving. The limiting component 6 can be directly welded and fixed to the base 212.

[0037] Example 2

[0038] This embodiment provides a cable ventilation device, which differs from the cable ventilation device provided in Embodiment 1 in that: the limiting component 6 includes multiple limiting sensors that are communicatively connected to the control component 4, and a limiting sensor is provided on both sides of each blade 221. The angle adjustment component 3 can drive each blade 221 to rotate in the forward or reverse direction so that it can abut against the limiting sensors on both sides, so that the limiting sensors send signals to the control component 4, and the control component 4 can control the angle adjustment component 3 to stop operating; the limiting sensors are contact type limiting sensors, which send signals to the control component 4 when they abut against the blade 221, so that the angle adjustment component 3 stops operating, thereby realizing automatic control.

[0039] The cable ventilation device provided in this embodiment has the same other structures as in Embodiment 1, and will not be described in detail here.

[0040] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An air ducting cable trough, characterized by: The utility model relates to a cable trench ventilation device, comprising: a cover plate (1) for covering a cable trench, wherein a ventilation hole (11) is arranged on the cover plate (1) to communicate the cable trench with the outside; a flow assembly (2) comprising a driving part (21) and a fan blade assembly (22), wherein the driving part (21) is fixedly arranged at the ventilation hole (11), the driving part (21) is in transmission connection with the fan blade assembly (22), and the driving part (21) can drive the fan blade assembly (22) to rotate circumferentially around the axis of the driving part (21); and an angle adjusting assembly (3) in transmission connection with the fan blade assembly (22) and the driving part (21), wherein the driving part (21) can drive the angle adjusting assembly (3) and the fan blade assembly (22) to rotate synchronously around the axis of the driving part (21), and the angle adjusting assembly (3) can drive the fan blade assembly (22) to overturn itself to adjust the windward angle of the fan blade assembly (22).

2. Cable duct air handling device according to claim 1, characterized in that: Further comprising a control component (4) arranged on the cover plate (1) and in communication connection with the flow assembly (2) and the angle adjusting assembly (3), and capable of controlling the actions of the flow assembly (2) and the angle adjusting assembly (3).

3. Cable duct air handling device according to claim 2, characterized in that: Further comprising a monitoring assembly (5) for extending into the cable trench and capable of monitoring environmental information in the cable trench; the monitoring assembly (5) is in communication connection with the control component (4), and the control component (4) can receive the environmental information and control the actions of the flow assembly (2) and / or the angle adjusting assembly (3).

4. A cable air duct according to claim 3, characterized in that: The monitoring assembly (5) comprises a temperature sensor (51) and a humidity sensor (52) for monitoring temperature information and humidity information in the cable trench, respectively.

5. A cable air duct according to claim 2, characterized in that: Further comprising a limiting component (6) fixedly arranged on the driving part (21), which can abut against the limiting component (6) to limit the overturning angle during the overturning of the fan blade assembly (22) itself.

6. A cable air duct according to claim 5, characterized in that: The fan blade assembly (22) comprises a plurality of blades (221) distributed circumferentially along the driving part (21), the angle adjusting assembly (3) is in transmission connection with each blade (221) and drives each blade (221) to overturn itself, and each blade (221) can abut against the limiting component (6) to limit the overturning angle during the overturning.

7. A cable air duct according to claim 6, characterized in that: The limiting component (6) comprises a plurality of limiting rods (61), each blade (221) is provided with a limiting rod (61) on both sides, and the angle adjusting assembly (3) can drive each blade (221) to overturn forward or reversely to abut against the limiting rods (61) on both sides to limit the overturning angle.

8. A cable air duct according to claim 6, characterized in that: The limiting component (6) comprises a plurality of limiting sensors in communication connection with the control component (4), each of the blades (221) is provided with a limiting sensor on both sides, the angle adjusting assembly (3) can drive each of the blades (221) to flip forward or reverse, so as to abut against the limiting sensors on both sides, so that the limiting sensors send signals to the control component (4), and the control component (4) can control the angle adjusting assembly (3) to stop moving.

9. A cable air duct according to claim 6, characterized in that: The angle adjusting assembly (3) comprises a plurality of adjusting motors (31), the driving ends of the plurality of adjusting motors (31) are respectively in transmission connection with the plurality of blades (221), so as to drive the corresponding blades (221) to flip.

10. A cable air duct according to claim 5, characterized in that: The driving part (21) comprises a driving motor (211) and a base (212), the driving motor (211) is coaxially fixedly connected to the ventilation hole (11) through a fixed frame (7), the driving end of the driving motor (211) is in transmission connection with the base (212), and the fan blade assembly (22), the angle adjusting assembly (3) and the limiting component (6) are all arranged on the base (212).

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