Electric power engineering cable protection device

Abstract

The utility model discloses an electric power engineering cable protection device which comprises a U-shaped groove type protection bridge frame and a protection cover plate arranged outside the top end of the U-shaped groove type protection bridge frame, the cross section of the protection cover plate is in a U shape, and the inner walls of the left end and the right end of the protection cover plate are attached to the outer walls of the left end and the right end of the top of the U-shaped groove type protection bridge frame respectively. The protection cover plate is fixedly connected with the U-shaped groove type protection bridge frame through a plurality of screws, a plurality of self-melting fire extinguishing devices are additionally arranged on the protection cover plate at the top end of the U-shaped groove type protection bridge frame, a large number of cables are protected in the U-shaped groove type protection bridge frame, and when the cables have a fire disaster due to short circuit or external factors, the self-melting fire extinguishing devices are arranged on the protection cover plate. The self-melting fire extinguishing device can play an important role, flames can burn through the smeltable sealing bottom plate at the bottom of the cylindrical metal fire extinguishing box, at the moment, the fire extinguishing dry powder in the cylindrical metal fire extinguishing box can be rapidly scattered to the fire position under the action of gravity, and the fire is rapidly extinguished.

Description

Technical Field

[0001] This utility model belongs to the technical field of power engineering, and specifically relates to a cable protection device for power engineering. Background Technology

[0002] With the continuous development of power engineering, the use of cables is increasing daily. Cables play a vital role in power and signal transmission, but they also face various safety risks. Among these, fire is one of the most serious safety threats to cables.

[0003] In existing power cable protection systems, while some devices can prevent external physical damage to cables to a certain extent, they often suffer from slow fire response times in the event of a fire. When a cable fire occurs, traditional fire extinguishing equipment typically requires manual activation or relies on external sensors for triggering, leading to a delay in response time. During this time, the fire can easily spread rapidly, causing severe losses to the power project. On the one hand, manually activating fire extinguishing equipment requires time to detect and operate, during which time the fire may have already spread rapidly and become difficult to control. On the other hand, fire extinguishing systems relying on external sensors may also experience delays in extinguishing fires due to sensor malfunctions, false alarms, or excessively long response times. Furthermore, existing cable protection devices may have structural design deficiencies that fail to provide a fast and effective installation and triggering mechanism for fire extinguishing equipment, further impacting the fire response time.

[0004] Therefore, in order to solve the problem of slow fire extinguishing response time and rapid fire spread caused by power cables in the event of a fire, it is imperative to develop a new type of power cable protection device. Utility Model Content

[0005] The purpose of this utility model is to provide a cable protection device for power engineering, in order to solve the problem mentioned in the background art that when a cable fire occurs, traditional fire extinguishing equipment usually requires manual activation or relies on external sensors for triggering, which leads to a delay in fire extinguishing response time. Furthermore, existing cable protection devices may also have some deficiencies in structural design, failing to provide a fast and effective installation and triggering mechanism for fire extinguishing equipment, further affecting the fire extinguishing response time.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a power engineering cable protection device, comprising a U-shaped trough protective cable tray and a protective cover plate disposed on the outer side of the top of the U-shaped trough protective cable tray. The protective cover plate has a U-shaped cross-section. The inner walls of the left and right ends of the protective cover plate are respectively attached to the outer walls of the top left and right ends of the U-shaped trough protective cable tray. The protective cover plate is fixedly connected to the U-shaped trough protective cable tray by multiple screws. Both the U-shaped trough protective cable tray and the protective cover plate are made of aluminum alloy. A sheet-like flame-retardant protective pad is pasted and fixed to the inner wall of the bottom end of the protective cover plate. Multiple self-melting fire extinguishing devices are inserted at equal intervals inside the top end of the protective cover plate.

[0007] Preferably, the self-melting fire extinguishing device includes a fusible sealing base plate, insertion holes, a cylindrical metal fire extinguishing box, and a placement retaining ring. The protective cover plate and the interior of the sheet-like flame-retardant protective pad are connected by multiple insertion holes. The cylindrical metal fire extinguishing box is inserted into the insertion holes. The bottom end of the cylindrical metal fire extinguishing box is open. The bottom end of the cylindrical metal fire extinguishing box is sealed and fixed with the fusible sealing base plate. The placement retaining ring is sleeved and fixed on the upper outer side of the center of the cylindrical metal fire extinguishing box. The placement retaining ring is placed on the outer wall of the top of the protective cover plate.

[0008] Preferably, the self-melting fire extinguishing device further includes a sealing cap and a feeding port. The cylindrical metal fire extinguishing box has a feeding port at its top, which is connected to the interior of the cylindrical metal fire extinguishing box. The external opening of the feeding port is threaded with a sealing cap.

[0009] Preferably, an appropriate amount of fire extinguishing dry powder can be injected into the cylindrical metal fire extinguishing box through the feeding port. After the sealing cap is threaded into the feeding port, the inside of the cylindrical metal fire extinguishing box is in a sealed state.

[0010] Preferably, a U-shaped flame-retardant protective pad is adhered and fixed to the inner wall of the U-shaped trough protective cable tray, and a U-shaped connecting frame is sleeved on both the front and rear sides of the center of the U-shaped trough protective cable tray and the protective cover plate. The bottom end of the U-shaped connecting frame is fixedly connected to the U-shaped trough protective cable tray by screws.

[0011] Preferably, a screw hole B is provided at the center of the top of the U-shaped connecting sleeve frame, and a suspension fixing screw is inserted into the screw hole B. Two fixing nuts B are threaded on the lower side of the center of the suspension fixing screw, and the two fixing nuts B are respectively clamped on the upper side of the outer wall of the top of the U-shaped connecting sleeve frame and the lower side of the inner wall of the top.

[0012] Preferably, the top of the suspension fixing screw is provided with a top surface fixing frame, and the center of the top surface fixing frame is provided with a screw through hole A. The top surface fixing frame is sleeved on the outside of the suspension fixing screw through the screw through hole A.

[0013] Preferably, two fixing nuts A are threaded onto the upper external side of the center of the suspension fixing screw. The two fixing nuts A are respectively clamped at the upper and lower ends of the top surface fixing frame. The top surface fixing frame is fixed to the building roof by multiple screws.

[0014] Compared with the prior art, this utility model provides a cable protection device for power engineering, which has the following beneficial effects:

[0015] This invention incorporates multiple self-melting fire extinguishing devices on the protective cover plate at the top of a U-shaped cable tray. The U-shaped cable tray protects a large number of cables, and when a fire breaks out due to a short circuit or external factors, the self-melting fire extinguishing devices play a crucial role. The flames burn through the fusible sealing plate at the bottom of the cylindrical metal fire extinguishing box. At this point, the dry extinguishing powder inside the cylindrical metal fire extinguishing box is rapidly dispersed to the fire location under gravity, quickly extinguishing the fire. This fire extinguishing method allows for a faster response; once a fire occurs, the flames can quickly burn through the fusible sealing plate, allowing the dry extinguishing powder to be immediately deployed for firefighting, significantly shortening the time interval between the fire's occurrence and the start of firefighting, effectively preventing further spread of the fire. Furthermore, the self-melting fire extinguishing devices are highly targeted; the dry extinguishing powder is directly dispersed at the location of the burning cable, accurately extinguishing the fire source, avoiding waste of firefighting resources, and improving firefighting efficiency. Attached Figure Description

[0016] Figure 1 This is a side-view three-dimensional structural diagram of a power engineering cable protection device according to the present invention.

[0017] Figure 2 This is a front view schematic diagram of a cable protection device for power engineering according to the present invention.

[0018] Figure 3 This is a right-view plan view of a cable protection device for power engineering according to the present invention.

[0019] Figure 4 This is a frontal plan view of the self-melting fire extinguishing device of this utility model.

[0020] Figure 5 This is a three-dimensional disassembly diagram of the self-melting fire extinguishing device of this utility model.

[0021] In the diagram: 1. Fixing nut A; 2. Suspension fixing screw; 3. Top surface fixing bracket; 4. Fixing nut B; 5. U-shaped connecting sleeve frame; 6. U-shaped trough protective cable tray; 7. Protective cover plate; 8. Self-melting fire extinguishing device; 9. U-shaped flame-retardant protective pad; 10. Sheet-shaped flame-retardant protective pad; 11. Fusible sealing base plate; 12. Insertion round hole; 13. Cylindrical metal fire extinguishing box; 14. Installation retaining ring; 15. Sealing cover; 16. Feed port. Detailed Implementation

[0022] 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.

[0023] This utility model provides, for example Figure 1-5The power cable protection device shown includes a U-shaped trough-type protective cable tray 6 and a protective cover plate 7 disposed on the outer side of the top of the U-shaped trough-type protective cable tray 6. The protective cover plate 7 has a U-shaped cross-section, and the inner walls of the left and right ends of the protective cover plate 7 are respectively attached to the outer walls of the top left and right ends of the U-shaped trough-type protective cable tray 6. The protective cover plate 7 is fixedly connected to the U-shaped trough-type protective cable tray 6 by multiple screws. Both the U-shaped trough-type protective cable tray 6 and the protective cover plate 7 are made of aluminum alloy. This power cable protection device adopts a trough-type cable tray structure, consisting of a U-shaped trough-type protective cable tray 6 and a U-shaped protective cover plate 7. This design can provide a closed protective space for the cable, preventing external factors from damaging the cable. Both the U-shaped trough-type protective cable tray 6 and the protective cover plate 7 are made of aluminum alloy, which has the advantages of light weight, high strength, and corrosion resistance. On the one hand, the lighter weight facilitates installation and maintenance, reducing the manpower and material costs during installation. On the other hand, the high strength can ensure the stability of the protective cable tray in various environments. The protective cover 7 is not easily deformed or damaged. It is fixedly connected to the U-shaped trough protective cable tray 6 by multiple screws, ensuring the integrity and sealing of the device. This connection method is firm and reliable, which can effectively prevent the protective cover 7 from being opened accidentally and ensure the safety of the cable. A sheet-like flame-retardant protective pad 10 is attached to the inner wall of the bottom of the protective cover 7, and a U-shaped flame-retardant protective pad 9 is attached to the inner wall of the U-shaped trough protective cable tray 6. In the event of a fire or other accident, the flame-retardant protective pad can prevent the spread of fire and provide additional protection for the cable. They can slow down the spread of flames and buy time for fire fighting and rescue. In daily use, the cable may be affected by external forces such as vibration and collision. The flame-retardant protective pad can play a buffering role, reduce the impact of external forces on the cable, and protect the insulation layer and internal conductor of the cable from damage. The U-shaped trough protective cable tray 6 and the protective cover 7 are both fitted with U-shaped connecting frames 5 on the front and rear sides of the center. The bottom of the U-shaped connecting frames 5 is fixedly connected to the U-shaped trough protective cable tray 6 by screws.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, a screw hole B is provided at the center of the top of the U-shaped connecting sleeve 5. A suspension fixing screw 2 is inserted into the screw hole B. The suspension fixing screw 2 is a key component connecting the U-shaped connecting sleeve 5 and the top fixing bracket 3, suspending the protective device on the building roof. It bears the weight of the entire protective device, ensuring that the protective device can be firmly installed in the designated position. Two fixing nuts B4 are threaded on the lower side of the center of the suspension fixing screw 2. The two fixing nuts B4 are respectively clamped on the upper side of the outer wall of the top of the U-shaped connecting sleeve 5 and the lower side of the inner wall of the top. The top fixing bracket 3 is provided at the top of the suspension fixing screw 2. The top surface fixing bracket 3 has a screw through hole A at its center. The top surface fixing bracket 3 is sleeved on the outside of the suspension fixing screw 2 through the screw through hole A. Two fixing nuts A1 are threaded on the upper side of the center of the suspension fixing screw 2. The two fixing nuts A1 are respectively clamped at the upper and lower ends of the top surface fixing bracket 3. The top surface fixing bracket 3 is fixed to the building roof with multiple screws. The top surface fixing bracket 3 evenly distributes the weight of the protective device to the building roof, avoiding excessive local pressure that could damage the building structure. At the same time, it also ensures that the protective device will not loosen or shift due to gravity or other factors during long-term use.

[0025] like Figure 1 , Figure 4 and Figure 5 As shown, multiple self-melting fire extinguishing devices 8 are equidistantly inserted into the top of the protective cover 7. Each self-melting fire extinguishing device 8 includes a fusible sealing base plate 11, insertion holes 12, a cylindrical metal fire extinguishing box 13, and a mounting ring 14. Multiple insertion holes 12 are connected through the interior of the protective cover 7 and the sheet-like flame-retardant protective pad 10. A cylindrical metal fire extinguishing box 13 is inserted into each insertion hole 12. The bottom of the cylindrical metal fire extinguishing box 13 is open, and the bottom of the cylindrical metal fire extinguishing box 13 is sealed with a fusible sealing base plate 11. A mounting ring 14 is fitted and fixed to the upper outer side of the center of the cylindrical metal fire extinguishing box 13. The mounting ring 14 is placed on the protective cover. A retaining ring 14 is installed on the outer wall of the top of the cover plate 7 to fix the position of the fire extinguishing box and prevent it from moving or falling off after installation. The self-melting fire extinguishing device 8 also includes a sealing cover 15 and a feeding port 16. The top of the cylindrical metal fire extinguishing box 13 is provided with a feeding port 16, which is connected to the inside of the cylindrical metal fire extinguishing box 13. The sealing cover 15 is threaded onto the outside of the opening of the feeding port 16. When it is necessary to check the fire extinguishing device or replenish the fire extinguishing dry powder, the sealing cover 15 can be easily unscrewed to perform the corresponding operation. The sealing cover 15 can also prevent the fire extinguishing dry powder from leaking accidentally in non-fire conditions, thus avoiding the impact on the surrounding environment.

[0026] like Figure 1 , Figure 4 and Figure 5As shown, an appropriate amount of dry extinguishing powder can be injected into the cylindrical metal fire extinguishing box 13 through the feeding port 16. After the sealing cap 15 is threaded into the feeding port 16, the inside of the cylindrical metal fire extinguishing box 13 is sealed. The cylindrical metal fire extinguishing box 13 is made of metal, which has a certain strength and stability, and can protect the internal dry extinguishing powder from external factors during daily use. The bottom opening is provided with a fusible sealing base plate 11, which is fixedly sealed. This design ensures that the fire extinguishing device is in a sealed state under normal circumstances, ensuring that the dry extinguishing powder will not leak or become damp. When a fire occurs in the cable due to a short circuit or external factors, the high temperature generated by the flame will act on the fusible sealing plate 11 at the bottom of the cylindrical metal fire extinguishing box 13. The fusible sealing plate 11 will be burned through at a certain temperature because its material properties determine that it will lose its sealing at a specific high temperature. Once the fusible sealing plate 11 is burned through, the fire extinguishing dry powder inside the cylindrical metal fire extinguishing box 13 will be quickly scattered to the fire location under the action of gravity. The fire extinguishing dry powder has good fire extinguishing performance and can extinguish the fire by inhibiting the combustion reaction and isolating oxygen.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable protection device for power engineering, comprising a U-shaped trough-type protective cable tray (6) and a protective cover plate (7) disposed on the outer side of the top of the U-shaped trough-type protective cable tray (6), wherein the protective cover plate (7) has a U-shaped cross-section, the inner walls of the left and right ends of the protective cover plate (7) are respectively attached to the outer walls of the top left and right ends of the U-shaped trough-type protective cable tray (6), the protective cover plate (7) is fixedly connected to the U-shaped trough-type protective cable tray (6) by a plurality of screws, both the U-shaped trough-type protective cable tray (6) and the protective cover plate (7) are made of aluminum alloy, and a sheet-like flame-retardant protective pad (10) is pasted and fixed to the inner wall of the bottom end of the protective cover plate (7), characterized in that: The protection cover plate (7) top end inside equidistant plug-in has a plurality of self-fusion fire extinguishing device (8); The self-fusion fire extinguishing device (8) includes a burnable sealing bottom plate (11), a plug-in round hole (12), a cylindrical metal fire extinguishing box (13) and a placing stop ring (14), the protection cover plate (7) is connected with the inside of the sheet-shaped fireproof protection pad (10) through a plurality of plug-in round holes (12), the plug-in round hole (12) is inserted into the cylindrical metal fire extinguishing box (13), the bottom end of the cylindrical metal fire extinguishing box (13) is provided with an opening, the bottom end of the cylindrical metal fire extinguishing box (13) is sealed and fixed with a burnable sealing bottom plate (11), the upper side of the center of the cylindrical metal fire extinguishing box (13) is externally sleeved with a placing stop ring (14), and the placing stop ring (14) is placed on the top end outer wall of the protection cover plate (7).

2. A power engineering cable protection device according to claim 1, characterized in that: The self-fusion fire extinguishing device (8) further comprises a sealing cover (15) and a charging port (16), the top end of the cylindrical metal fire extinguishing box (13) is provided with a charging port (16), the charging port (16) is communicated with the inside of the cylindrical metal fire extinguishing box (13), and the charging port (16) is externally threaded sleeved with a sealing cover (15).

3. An electrical power engineering cable protection device according to claim 2, characterised in that: The inside of the cylindrical metal fire extinguishing box (13) can be injected with an appropriate amount of dry powder fire extinguishing agent through the charging port (16), and after the sealing cover (15) is threaded into the inside of the charging port (16), the inside of the cylindrical metal fire extinguishing box (13) is in a sealed state.

4. A power engineering cable protection device according to claim 1, characterized in that: The inner wall of the U-shaped groove type protection bridge (6) is pasted and fixed with a U-shaped fireproof protection pad (9), the U-shaped groove type protection bridge (6) is sleeved with a back type connecting sleeve frame (5) on the outside of the front and rear sides of the center, and the bottom end of the back type connecting sleeve frame (5) is fixedly connected with the U-shaped groove type protection bridge (6) through screws.

5. An electrical power engineering cable protection device according to claim 4, characterised in that: The top end center of the back type connecting sleeve frame (5) is provided with a screw hole B, the suspension fixing screw (2) is inserted into the screw hole B, and the center of the suspension fixing screw (2) is externally threaded sleeved with two fixed nuts B (4).

6. An electrical power engineering cable protection device according to claim 5, characterised in that: The top end of the suspension fixing screw (2) is provided with a top surface fixing frame (3), the center of the top surface fixing frame (3) is provided with a screw hole A, and the top surface fixing frame (3) is sleeved on the outside of the suspension fixing screw (2) through the screw hole A.

7. An electrical power engineering cable protection device according to claim 6, characterised in that: The center of the suspension fixing screw (2) is externally threaded sleeved with two fixed nuts A (1), and the two fixed nuts A (1) are clamped on the upper and lower ends of the top surface fixing frame (3), respectively. The top surface fixing frame (3) is fixed on the top surface of the building through a plurality of screws.

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