Fireproof flame-retardant protective device for electrical circuit

Abstract

The utility model belongs to the technical field of electrical equipment safety protection, and particularly relates to an electrical circuit fireproof flame-retardant protection device which comprises an upper shell, a lower shell, a fireproof interlayer, two arc-shaped clamping plates, a supporting buffer assembly, a fire extinguishing assembly, a heat dissipation assembly, a limiting assembly and an electrical cable. The upper shell is installed on the lower shell in a hinged mode, the fireproof interlayer is arranged on the inner wall of the upper shell and the inner wall of the lower shell, and the supporting and buffering assembly is arranged on the inner wall of the top of the upper shell and the inner wall of the bottom of the lower shell. The device is reasonable in design, simple in design and easy to operate, the arrangement of the upper shell and the lower shell facilitates protection and maintenance of the electrical cable, opening and closing are facilitated, the arrangement of the fireproof interlayer improves the fireproof capability of the device, the electrical cable is prevented from being rapidly burnt in a fire, and the service life of the device is prolonged. In addition, the supporting buffer assembly and the arc-shaped clamping plate are matched to ensure that the cable is fixed and collision damage is reduced, and the fire extinguishing assembly is arranged to extinguish fire rapidly when a fire breaks out.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment safety protection, and particularly relates to an electrical circuit fire prevention and flame retardant protection device. Background Art

[0002] In modern society, electrical equipment is widely used in various fields of industrial production, commercial operation and daily life. As an important carrier for electric energy transmission, the safety of electrical circuits is directly related to the stable operation of the entire electrical system and people's life and property safety. However, during the long-term operation of electrical circuits, due to problems such as overload, short circuit, and aging, it is extremely easy to cause fire accidents, resulting in serious economic losses and casualties.

[0003] Existing electrical circuit fire prevention and flame retardant measures have many deficiencies. Some protection devices simply use fireproof coatings or wrap fireproof materials, and cannot actively carry out fire extinguishing operations when a fire occurs, resulting in the rapid spread of the fire once it breaks out and being difficult to effectively control. Some protection equipment lacks the function of real-time monitoring of the temperature of electrical cables, and cannot detect and take measures in time at the budding stage of the fire, delaying the best fire extinguishing opportunity. Moreover, most protection devices do not have a buffer structure. When the device is impacted by external forces, the electrical cables are easily damaged due to extrusion, affecting normal use. In addition, traditional protection devices also have defects in heat dissipation, sealing, and adaptability to cables of different sizes. Poor heat dissipation will cause the cable temperature to be too high, accelerating its aging; loose sealing will allow impurities such as dust and water vapor to enter, reducing the protection performance; the inability to adapt to cables of different sizes limits the application range of the device.

[0004] Therefore, the utility model proposes an electrical circuit fire prevention and flame retardant protection device to solve the above problems.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the deficiencies mentioned in the above background art, and propose an electrical circuit fire prevention and flame retardant protection device.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: An electrical circuit fire prevention and flame retardant protection device includes an upper housing, a lower housing, a fireproof partition, two arc-shaped clamping plates, a support buffer assembly, a fire extinguishing assembly, a heat dissipation assembly, a limiting assembly, and an electrical cable;

[0008] The upper shell is hinged to the lower shell. The fireproof partition layer is arranged on the inner walls of the upper shell and the lower shell. The support and buffer assembly is arranged on the inner wall of the top of the upper shell and the inner wall of the bottom of the lower shell. Both arc-shaped clamping plates are fixedly installed on the support and buffer assembly and are symmetrically arranged. The electrical cable penetrates through the upper shell and the lower shell and is clamped between the two arc-shaped clamping plates. The fire extinguishing assembly is arranged on the lower shell and is adapted to the electrical cable. The heat dissipation assembly is arranged on the upper shell and the lower shell. The limiting assembly is arranged on the upper shell and is connected to the lower shell.

[0009] Preferably, the support and buffer assembly includes four guide plates, two strip plates and a plurality of springs. Strip plates are fixedly installed on the inner wall of the top of the upper shell and the inner wall of the bottom of the lower shell. Two guide plates are fixedly installed on the sides of each arc-shaped clamping plate away from each other. The two guide plates are slidably installed on both sides of the same strip plate. A plurality of springs are fixedly installed on the side of the strip plate close to the arc-shaped clamping plate. The ends of the plurality of springs away from the strip plate are respectively fixedly connected to the corresponding arc-shaped clamping plates.

[0010] Preferably, the fire extinguishing assembly includes a storage tank, a delivery pipe, a hollow plate, a plurality of nozzles and a solenoid valve. The hollow plate is fixedly installed on the inner wall of the bottom of the lower shell. A plurality of nozzles are fixedly installed on the side of the hollow plate facing the electrical cable. The lower shell is fixedly installed with a delivery pipe communicating with the hollow plate. The end of the delivery pipe away from the hollow plate extends outside the lower shell and is connected to a storage tank for storing fire extinguishing agent, and a solenoid valve is fixedly installed on the delivery pipe.

[0011] Preferably, a plurality of temperature sensors are embedded and fixedly installed on the inner arc surface of the arc-shaped clamping plate.

[0012] Preferably, the heat dissipation assembly includes a heat dissipation fan and two heat dissipation openings. Heat dissipation openings are provided on both the upper shell and the lower shell. The heat dissipation fan is fixedly installed on the inner wall of the upper shell, and the heat dissipation fan is adapted to the heat dissipation opening on the upper shell.

[0013] Preferably, a protective net is fixedly installed in the heat dissipation opening.

[0014] Preferably, the limiting assembly includes two fixing blocks, a limiting block, a limiting groove and a handle. Two fixing blocks are fixedly installed on the upper shell. The same limiting block is hinged to the two fixing blocks. A limiting groove is provided on the lower shell. The limiting block is clamped in the limiting groove, and a handle is fixedly installed on the limiting block.

[0015] Preferably, a sealing strip is fixedly installed on the top side of the lower shell, and the sealing strip is in movable sealing contact with the bottom side of the upper shell.

[0016] Preferably, the fireproof partition layer is a ceramic fiber felt and is pasted on the inner walls of the upper shell and the lower shell through high-temperature resistant glue.

[0017] Preferably, two retaining rings are fixedly sleeved on the electrical cable, and the two retaining rings are respectively abutted against the upper shell and the lower shell.

[0018] The beneficial effects of the present utility model are as follows:

[0019] Through the cooperation of the upper shell, the lower shell, the fireproof partition layer, the arc-shaped clamping plate, the support buffer assembly, the fire extinguishing assembly, the heat dissipation assembly and the limit assembly, the electrical cable can be effectively protected. By setting the support buffer assembly, it can provide support and buffer effects for the arc-shaped clamping plate, which can not only prevent the electrical cable from being damaged by extrusion, but also well adapt to electrical cables of different sizes. By setting the fire extinguishing assembly, it can spray fire extinguishing agent to the position of the electrical cable for fire extinguishing operation when needed. By setting the temperature sensor, the temperature of the electrical cable can be monitored in real time, so that the fire can be detected in time and cooperate with the fire extinguishing assembly to achieve rapid fire extinguishing operation. By setting the heat dissipation assembly, the air flow rate in the upper shell and the lower shell can be accelerated, so as to realize the heat dissipation of the electrical cable. By setting the limit assembly, it is convenient to lock and limit the upper shell and the lower shell after connection. By setting the sealing strip, the connection part of the upper shell and the lower shell can be sealed. By setting the fireproof partition layer, the fireproof and flame-retardant performance of the device can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of an electrical circuit fireproof and flame-retardant protection device proposed by the present utility model;

[0022] Figure 2 is Figure 1 the sectional structural schematic diagram;

[0023] Figure 3 It is a partial three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 4 is Figure 3 the exploded view;

[0025] Figure 5 It is a structural schematic diagram of the fire extinguishing assembly part proposed by the present utility model;

[0026] Figure 6Structural schematic diagram of the electrical cable and the retaining ring proposed by the present utility model.

[0027] In the figure: 1. Electrical cable; 11. Upper housing; 12. Lower housing; 13. Sealing strip; 14. Limit block; 15. Protective net; 16. Cooling fan; 2. Fireproof partition; 3. Arc-shaped clamping plate; 31. Guide plate; 32. Strip-shaped plate; 33. Spring; 4. Temperature sensor; 5. Hollow plate; 501. Nozzle; 51. Storage tank; 52. Delivery pipe; 521. Solenoid valve; 6. Retaining ring. Specific embodiments

[0028] The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Referring to Figures 1-6 , an electrical circuit fireproof and flame-retardant protection device, including an upper housing 11, a lower housing 12, a fireproof partition 2, two arc-shaped clamping plates 3 and an electrical cable 1. The upper housing 11 is hingedly installed on the lower housing 12. The fireproof partition 2 is arranged on the inner walls of the upper housing 11 and the lower housing 12. Among them, the fireproof partition 2 is a ceramic fiber felt and is pasted on the inner walls of the upper housing 11 and the lower housing 12 through high-temperature resistant glue. Strip-shaped plates 32 are fixedly installed on the top inner wall of the upper housing 11 and the bottom inner wall of the lower housing 12. The two arc-shaped clamping plates 3 are both arranged in the space surrounded by the upper housing 1 and the lower housing 2 and are symmetrically arranged. Two guide plates 31 are fixedly installed on the sides of the two arc-shaped clamping plates 3 away from each other. The two guide plates 31 are slidably installed on both sides of the same strip-shaped plate 32. A plurality of springs 33 are fixedly installed on the side of the strip-shaped plate 32 close to the arc-shaped clamping plate 3. The ends of the plurality of springs 33 away from the strip-shaped plate 32 are respectively fixedly connected to the corresponding arc-shaped clamping plates 3, which can provide support and buffering effects for the arc-shaped clamping plates 3;

[0030] The electrical cable 1 passes through the upper housing 11 and the lower housing 12 and is snap-fitted between two arc-shaped clamping plates 3. A hollow plate 5 is fixedly installed on the bottom inner wall of the lower housing 12. A plurality of nozzles 501 are fixedly installed on one side of the hollow plate 5 facing the electrical cable 1. The lower housing 12 is fixedly installed with a delivery pipe 52 communicating with the hollow plate 5. One end of the delivery pipe 52 away from the hollow plate 5 extends outside the lower housing 12 and is connected to a storage tank 51 for storing fire extinguishing agent. A solenoid valve 521 is fixedly installed on the delivery pipe 52, which can spray fire extinguishing agent to the position of the electrical cable 1 for fire extinguishing operation when needed. At the same time, in order to be able to monitor the temperature of the electrical cable 1 in real time so as to detect a fire in time, a plurality of temperature sensors 4 are embedded and fixedly installed on the inner arc surface of the arc-shaped clamping plate 3;

[0031] Heat dissipation openings are provided on both the upper housing 11 and the lower housing 12. A heat dissipation fan 16 is fixedly installed on the inner wall of the upper housing 11, and the heat dissipation fan 16 is adapted to the heat dissipation opening on the upper housing 11, which can accelerate the air flow rate inside the upper housing 11 and the lower housing 12, thereby realizing the heat dissipation of the electrical cable 1. In order to prevent sundries from entering the upper housing 11 and the lower housing 12 from the heat dissipation opening, a protective net 15 is fixedly installed in the heat dissipation opening;

[0032] Two fixing blocks are fixedly installed on the upper housing 11. The same limiting block 14 is hinged on the two fixing blocks. A limiting slot is provided on the lower housing 12. The limiting block 14 is snap-fitted in the limiting slot, and a handle is fixedly installed on the limiting block 14, which is convenient for locking and limiting the upper housing 11 and the lower housing 12 after they are connected.

[0033] In this embodiment, in order to be able to seal the connection between the upper housing 11 and the lower housing 12, a sealing strip 13 is fixedly installed on the top side of the lower housing 12, and the sealing strip 13 is movably and sealingly abutted against the bottom side of the upper housing 11.

[0034] In this embodiment, in order to effectively limit the axial movement of the electrical cable 1 and ensure the sealing performance of the connection between the electrical cable 1 and the upper housing 11 and the lower housing 12, two retaining rings 6 are fixedly sleeved on the electrical cable 1, and the two retaining rings 6 are respectively abutted against the upper housing 11 and the lower housing 12.

[0035] Among them, in order to further improve the fire prevention and flame retardant protection effect of the electrical circuit, after the upper housing 1 and the lower housing 2 are initially closed, into their internal space

[0036] For the circuits, electronic components and module mechanisms involved, etc., the existing technologies are adopted, which can be fully realized by those skilled in the art without further elaboration. The content protected by this application does not involve improvements to software, circuits and methods.

[0037] Working principle:

[0038] Fire prevention and flame retardancy: A fireproof partition layer 2 made of ceramic fiber felt is pasted on the inner walls of the upper housing 11 and the lower housing 12. This material has excellent high-temperature resistance and flame retardancy. When a fire occurs, it can form a fireproof barrier inside the device, effectively preventing the spread of flames and protecting the internal electrical cables 1 and other components.

[0039] Cable fixing and buffering: The electrical cable 1 passes through the upper housing 11 and the lower housing 12 and is clamped between two symmetrically arranged arc-shaped clamping plates 3. The arc-shaped clamping plates 3 slide on both sides of the strip-shaped plate 32 through the guide plates 31 and are supported and buffered by springs 33. This design can not only firmly fix the cable to prevent it from shaking or displacing, but also when the device is subjected to external impact, the buffering effect of the springs 33 can prevent the cable from being damaged.

[0040] Temperature monitoring: Multiple temperature sensors 4 are embedded in the inner arc surface of the arc-shaped clamping plate 3. They monitor the temperature of the electrical cable 1 in real time. Once the temperature rises abnormally, the sensors will quickly capture the change and transmit the signal to the corresponding control device for timely countermeasures.

[0041] Fire extinguishing operation: A plurality of nozzles 501 are installed on the side of the hollow plate 5 at the bottom of the lower housing 12 facing the electrical cable 1. It is connected to an external storage tank 51 for storing fire extinguishing agent through a delivery pipe 52. A solenoid valve 521 is provided on the pipeline. When the temperature sensor 4 detects that the temperature exceeds the preset threshold, or when a fire is confirmed through other fire detection devices, the control device will trigger the solenoid valve 521 to open, and the fire extinguishing agent will be sprayed onto the electrical cable 1 through the delivery pipe 52 and the nozzles 501 to effectively extinguish the initial fire and prevent the fire from spreading.

[0042] Heat dissipation and protection: Heat dissipation openings are provided on both the upper housing 11 and the lower housing 12. A heat dissipation fan 16 is installed on the inner wall of the upper housing 11, which can accelerate the air flow inside the upper housing 11 and the lower housing 12, take away the heat generated by the electrical cable 1, achieve heat dissipation and temperature reduction, and avoid faults or fires caused by overheating. A protective net 15 is installed in the heat dissipation opening, which can prevent dust, sundries, etc. from entering the housing and affecting the normal operation of the device.

[0043] Sealed connection: A sealing strip 13 is installed on the top of the lower housing 12 and is in close contact with the bottom of the upper housing 11 to ensure the sealing performance of the connection, prevent external water, dust and other impurities from entering, and at the same time prevent smoke and flames from leaking from the connection during a fire.

[0044] Axial limit and sealing of the cable: A retaining ring 6 is fixedly sleeved on the electrical cable 1. The retaining ring 6 abuts against the upper and lower housings 12 respectively, restricting the axial movement of the cable and ensuring the sealing performance of the connection between the cable and the housing, further enhancing the protection performance of the device.

[0045] The above has introduced in detail an electrical circuit fire prevention and flame retardant protection device provided by the present utility model. Specific embodiments are applied in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. An electrical circuit fire prevention and flame retardant protection device, characterized in that It includes an upper shell (11), a lower shell (12), a fireproof partition layer (2), two arc-shaped clamping plates (3), a support and buffer assembly, a fire extinguishing assembly, a heat dissipation assembly, a limiting assembly, and an electrical cable (1); The upper shell (11) is hinged to the lower shell (12). The fireproof partition layer (2) is arranged on the inner walls of the upper shell (11) and the lower shell (12). The support and buffer assembly is arranged on the top inner wall of the upper shell (11) and the bottom inner wall of the lower shell (12). Both of the two arc-shaped clamping plates (3) are fixedly installed on the support and buffer assembly and are symmetrically arranged. The electrical cable (1) penetrates through the upper shell (11) and the lower shell (12) and is clamped and installed between the two arc-shaped clamping plates (3). The fire extinguishing assembly is arranged on the lower shell (12) and is adapted to the electrical cable (1). The heat dissipation assembly is arranged on the upper shell (11) and the lower shell (12). The limiting assembly is arranged on the upper shell (11) and is connected to the lower shell (12).

2. An electrical circuit fire prevention and flame retardant protection device according to claim 1, characterized in that: The support and buffer assembly includes four guide plates (31), two strip-shaped plates (32), and a plurality of springs (33). Strip-shaped plates (32) are fixedly installed on the top inner wall of the upper shell (11) and the bottom inner wall of the lower shell (12). Two guide plates (31) are fixedly installed on one side of each of the two arc-shaped clamping plates (3) away from each other. The two guide plates (31) are slidably installed on both sides of the same strip-shaped plate (32). A plurality of springs (33) are fixedly installed on the side of the strip-shaped plate (32) close to the arc-shaped clamping plate (3). The ends of the plurality of springs (33) away from the strip-shaped plate (32) are respectively fixedly connected to the corresponding arc-shaped clamping plates (3).

3. An electrical circuit fire prevention and flame retardant protection device according to claim 1, characterized in that: The fire extinguishing assembly includes a storage tank (51), a delivery pipe (52), a hollow plate (5), a plurality of nozzles (501), and a solenoid valve (521). The hollow plate (5) is fixedly installed on the bottom inner wall of the lower shell (12). A plurality of nozzles (501) are fixedly installed on the side of the hollow plate (5) facing the electrical cable (1). The lower shell (12) is fixedly installed with a delivery pipe (52) communicating with the hollow plate (5). The end of the delivery pipe (52) away from the hollow plate (5) extends outside the lower shell (12) and is connected to a storage tank (51) for storing fire extinguishing agent, and a solenoid valve (521) is fixedly installed on the delivery pipe (52).

4. An electrical circuit fire prevention and flame retardant protection device according to claim 1, characterized in that: A plurality of temperature sensors (4) are embedded and fixedly installed on the inner arc surface of the arc-shaped clamping plate (3).

5. An electrical circuit fire prevention and flame retardant protection device according to claim 1, characterized in that: The heat dissipation assembly includes a cooling fan (16) and two heat dissipation openings. Heat dissipation openings are opened on both the upper shell (11) and the lower shell (12). The cooling fan (16) is fixedly installed on the inner wall of the upper shell (11), and the cooling fan (16) is adapted to the heat dissipation opening on the upper shell (11).

6. An electrical circuit fire prevention and flame retardant protection device according to claim 5, characterized in that: A protective net (15) is fixedly installed in the heat dissipation opening.

7. An electrical circuit fire prevention and flame retardant protection device according to claim 1, characterized in that: The limiting component includes two fixed blocks, a limiting block (14), a limiting groove, and a handle. Two fixed blocks are fixedly installed on the upper housing (11), and the same limiting block (14) is hingedly installed on the two fixed blocks. A limiting groove is formed on the lower housing (12), and the limiting block (14) is snap-fitted in the limiting groove, and a handle is fixedly installed on the limiting block (14).

8. An electrical circuit fire prevention and flame retardant protection device according to claim 1, characterized in that: A sealing strip (13) is fixedly installed on the top side of the lower housing (12), and the sealing strip (13) is movably and sealingly abutted against the bottom side of the upper housing (11).

9. An electrical circuit fire prevention and flame retardant protection device according to claim 1, characterized in that: The fireproof partition layer (2) is a ceramic fiber felt and is pasted on the inner walls of the upper housing (11) and the lower housing (12) through high-temperature resistant glue.

10. An electrical circuit fire prevention and flame retardant protection device according to claim 1, characterized in that: Two retaining rings (6) are fixedly sleeved on the electrical cable (1), and the two retaining rings (6) are respectively abutted against the upper housing (11) and the lower housing (12).

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