An auxiliary power-off fireproof socket device

Abstract

A fireproof power strip device with auxiliary power cut-off includes: a fireproof box device 1, a power strip 2 and a power switch 9 at its upper end, and a spring-loaded device 3. The spring-loaded device 3 includes a spring ejection device and a pull rope 12. The spring ejection device is installed above the switch 9, and a spring 10 is fixedly installed on it. One end of the spring 10 is suspended and located above the switch 9. One end of the pull rope 12 is connected to the suspended end of the spring 10, and the other end of the pull rope 12 is connected to the upper cover 7. The pull rope 12 pulls the suspended end of the spring 10 upward to an elastically deformed, energy-storing state. When the power strip 2 experiences a short circuit and generates high temperature or open flame, the pull rope 12 is burned through. The suspended end of the spring 10 releases energy and recovers from the elastically deformed state to a free state, ejecting downward to press the switch 9, thereby cutting off the power to the power strip 2 and reducing the occurrence of fire.

Description

Technical Field

[0001] This invention relates to the field of power strip technology, specifically to an auxiliary power-off fireproof power strip device. Background Technology

[0002] Most current power strips do not have the function of assisting in power cut-off and fire prevention when a short circuit or excessive current occurs during use, causing high temperature or fire. This poses a safety hazard that could lead to a fire. Summary of the Invention

[0003] In order to overcome the shortcomings of the above technologies, the present invention provides a power strip device with auxiliary power-off and fire prevention function when a short circuit or excessive current causes high temperature or fire during use, thereby reducing the probability of fire caused by the use of power strips.

[0004] The technical solution adopted by this invention to overcome its technical problems is:

[0005] An auxiliary power-off fireproof power strip device includes:

[0006] Fireproof box device 1 includes a bottom cover 5, a box body 6, and a top cover 7. The box body 6 is configured as a sleeve-shaped barrel with slots on its side for wires to pass through. The opening of the bottom cover 5 matches the lower opening of the box body 6, and its fixed cover is installed on the lower opening of the box body 6. The top cover 7 includes a top plate 8 and a surrounding side wall located at the lower periphery of the top plate 8. The surrounding side wall forms a lower barrel-shaped opening, which matches the upper opening of the box body 6. The top cover 7 is fixedly installed on the upper end of the box body 6. A U-shaped groove I18 is provided on the front edge of the bottom cover 5 for wires to pass through.

[0007] The power strip 2 has several sets of power socket holes suitable for inserting power plugs on its upper surface, and its left end is a power cord inlet. A switch 9 is also provided on the upper surface of the power cord inlet. The switch 9 is configured to disconnect or connect the power supply of the power strip 2 by pressing the switch 9. The power strip 2 is fixedly installed inside the box 6 of the fireproof box device 1, and its lower end is installed on the upper surface of the bottom of the bottom cover 5.

[0008] The spring-launching device 3 includes a spring ejection device and a pull rope 12. The spring ejection device is fixedly installed above the switch 9, and a spring 10 is fixedly installed on it. One end of the spring 10 is suspended and located above the switch 9. One end of the pull rope 12 is connected to the suspended end of the spring 10, and the other end of the pull rope 12 is fixedly connected to the upper cover 7. The pull rope 12 is configured to pull the suspended end of the spring 10 upward to an elastically deformed energy-storing state. When the power strip 2 experiences a short circuit and generates high temperature or open flame, burning the pull rope 12, the suspended end of the spring 10 releases energy and recovers from the elastically deformed state to a free state, ejecting downward to press the switch 9, thereby cutting off the power supply to the power strip 2 by pressing the switch 9.

[0009] Preferably, the spring ejection device further includes a top head 11, a circular tube 15, a plate 116, and a through hole 113. The plate 116 is horizontally disposed at the left end of the opening of the upper cover 7, above the switch 9 and below the top plate 8, with one end fixedly installed on the inner side of the opening of the upper cover 7. The circular tube 15 is vertically disposed, with its upper end fixedly installed on the lower end face of the plate 116 and its lower end disposed above the switch 9. The spring 10 is a compression spring, inserted into the circular tube 15 from bottom to top, with its upper end contacting and being installed on the lower end face of the plate 116. The through hole 113 is disposed on the plate 116 and located above the circular tube 15, with its diameter being smaller than the outer diameter of the spring 10. The top head 11 is configured with a lower diameter larger than the upper diameter. The upper end of the tapered shaft is larger than the diameter of the central hole of the spring 10, while the lower end has a diameter that matches the diameter of the central hole of the spring 10 and is inserted into the lower end of the central hole of the spring 10. One end of the pull rope 12 is connected to the upper end of the top head 11, and the other end of the pull rope 12 passes through the central hole of the spring 10 and the through hole I13, and is fixedly connected to the upper cover 7. It is configured to pull the spring 10 to an elastically compressed energy storage state. When the power strip 2 is short-circuited and generates high temperature or open flame, the pull rope 12 is baked and burned off. The lower end of the spring 10 releases energy and recovers from the elastically compressed state to the free state. The released energy bounces downward and presses the switch 9 through the top head 11, thereby cutting off the power supply to the power strip 2.

[0010] Preferably, it further includes a plurality of through holes II14 and a plate II17. The plate II17 is horizontally disposed at the right end of the opening of the upper cover 7, and one end of the plate II17 is fixedly installed on the inner side of the opening of the upper cover 7. The plurality of through holes II14 are respectively vertically disposed on the right side edge of the plate I16 and the left side edge of the plate II17. The plurality of through holes II14 are arranged sequentially from front to back along the right side edge of the plate I16 and the left side edge of the plate II17. One end of the pull rope 12 is configured to be fixedly connected to the upper end of the top head 11. The other end passes sequentially through the central hole of the spring 10, the through hole I13, and then sequentially through the first through hole II14 at the front end of the right edge of the plate I16, the first through hole II14 at the front end of the left edge of the plate II17, and then sequentially through the second through hole II14 at the front end of the right edge of the plate I16, the second through hole II14 at the front end of the left edge of the plate II17, until it passes sequentially through the last through hole II14, and is fixedly connected to the through hole II14, and is set to pull the spring 10 to an elastically compressed energy storage state.

[0011] Furthermore, it also includes a fire extinguishing box 4, which is configured as a box with a closed inner cavity filled with fire extinguishing agent. It is located inside the opening of the upper cover 7, and its upper end is fixedly connected to the lower end face of the top plate 8. When the power strip 2 is short-circuited and generates high temperature or open flame, the fire extinguishing agent in the box expands in volume due to the increase in temperature until the box is burst and sprayed outward for further fire prevention and fire extinguishing.

[0012] Furthermore, it also includes several U-shaped grooves II19, with their openings facing downwards and respectively disposed around the lower edge of the box body 6, suitable for the passage of wires.

[0013] Furthermore, it also includes several U-shaped grooves III20, with their openings facing upwards and respectively disposed around the upper edge of the box body 6, suitable for the passage of wires.

[0014] Preferably, the switch 9 of the power strip 2 is configured to disconnect the power when its front end is pressed and connect the power when its rear end is pressed. The suspended end of the spring 10 is located directly above the front end of the switch 9. When the suspended end of the spring 10 is in the energy-releasing state, it is configured to press down the front end of the switch 9 to disconnect the power.

[0015] Furthermore, it also includes four protrusions I21 and four square grooves I22. The shape of the protrusions I21 matches the groove shape of the square grooves I22. Two of the protrusions I21 are respectively located on the front outer side and the rear outer side of the lower left end of the box body 6, and the other two protrusions I21 are respectively located on the front outer side and the rear outer side of the lower right end of the box body 6. The two square grooves I22 are respectively located on the front side and the rear side of the upper left end of the bottom cover 5, and their positions are opposite to the two protrusions I21 on the lower left end of the box body 6. The positions of the protrusions I21 are matched, and the other two square grooves I22 are respectively disposed on the front and rear sides of the upper right end of the bottom cover 5 and their positions are matched with the positions of the two protrusions I21 at the lower right end of the box body 6. The four protrusions I21 and the four square grooves I22 are configured such that when the bottom cover 5 is installed on the lower end of the box body 6, the four protrusions I21 are suitable for being inserted into the four square grooves I22, so as to make the connection between the bottom cover 5 and the lower end of the box body 6 more secure.

[0016] Furthermore, it also includes four bosses II23 and four square grooves II24. The shapes of the bosses II23 and the grooves II24 are matched. Two of the bosses II23 are respectively located on the front outer side and the rear outer side of the upper left end of the box body 6, and the other two bosses II23 are respectively located on the front outer side and the rear outer side of the upper right end of the box body 6. The two square grooves II24 are respectively located on the front side and the rear side of the lower left end of the top cover 7, and their positions are aligned with the two square grooves II24 on the upper left end of the box body 6. The positions of the aforementioned protrusions II23 are matched, and the other two square grooves II24 are respectively disposed on the front and rear sides of the lower right end of the upper cover 7 and their positions are matched with the positions of the two protrusions II23 at the upper right end of the box body 6. The above four protrusions II23 and four square grooves II24 are configured such that when the upper cover 7 is installed on the upper end of the box body 6, the four protrusions II23 are suitable for being inserted into the four square grooves II24, so as to make the connection between the upper cover 7 and the upper end of the box body 6 more secure.

[0017] The beneficial effects of this invention are as follows: A spring-loaded device 3 is provided above the switch 9 of the power strip 2. This device includes a spring ejection device and a pull rope 12. The pull rope 12 pulls the suspended end of the spring 10 upward to an elastically deformed, energy-storing state. When the power strip 2 or electrical devices plugged into it experience a short circuit, generating high temperatures or open flames, the pull rope 12 is burned through. The suspended end of the spring 10 releases energy and recovers from the elastically deformed state to a free state, ejecting downward to press the switch 9. By pressing the switch 9, the power supply to the power strip 2 is cut off. Cutting off the power supply can prevent the power strip 2 from continuing to heat up due to the short circuit, thus reducing the probability of further fire. Furthermore, this invention also includes a fire extinguishing box 4, which is filled with fire extinguishing agent. When the power strip 2 experiences a short circuit, generating high temperatures or open flames, the fire extinguishing agent inside the box expands due to the increased temperature until the box bursts and is sprayed outward, achieving further fire prevention and extinguishing effects. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is an exploded three-dimensional structural diagram of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of the spring-loaded device and the upper cover of the present invention;

[0023] Figure 6 This is another perspective structural diagram of the spring-loaded device and the upper cover of the present invention;

[0024] Figure 7 This is a cross-sectional structural schematic diagram of another spring replacement embodiment of the present invention;

[0025] In the diagram: 1. Fireproof box device; 2. Power strip; 3. Spring-loaded device; 4. Fire extinguishing box; 5. Bottom cover; 6. Box body; 7. Top cover; 8. Top plate; 9. Switch; 10. Spring; 11. Top head; 12. Pull rope; 13. Through hole I; 14. Through hole II; 15. Round tube; 16. Plate I; 17. Plate II; 18. U-shaped groove I; 19. U-shaped groove II; 20. U-shaped groove III; 21. Boss I; 22. Square groove I; 23. Boss II; 24. Square groove II; 25. Leaf spring. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 and attached Figure 7 The present invention will be further described below.

[0027] An auxiliary power-off fireproof power strip device includes:

[0028] Fireproof box device 1 includes a bottom cover 5, a box body 6, and a top cover 7. The box body 6 is configured as a sleeve-shaped barrel with slots on its side for wires to pass through. The opening of the bottom cover 5 matches the lower opening of the box body 6, and its fixed cover is installed on the lower opening of the box body 6. The top cover 7 includes a top plate 8 and a surrounding side wall located at the lower periphery of the top plate 8. The surrounding side wall forms a lower barrel-shaped opening, which matches the upper opening of the box body 6. The top cover 7 is fixedly installed on the upper end of the box body 6. A U-shaped groove I18 is provided on the front edge of the bottom cover 5 for wires to pass through.

[0029] The power strip 2 has several sets of power socket holes suitable for inserting power plugs on its upper surface, and its left end is a power cord inlet. A switch 9 is also provided on the upper surface of the power cord inlet. The switch 9 is configured to disconnect or connect the power supply of the power strip 2 by pressing the switch 9. The power strip 2 is fixedly installed inside the box 6 of the fireproof box device 1, and its lower end is installed on the upper surface of the bottom of the bottom cover 5.

[0030] The spring-launching device 3 includes a spring ejection mechanism and a pull rope 12. The spring ejection mechanism is fixedly installed above the switch 9, and a spring 10 is fixedly installed on it. One end of the spring 10 is suspended and located above the switch 9. One end of the pull rope 12 is connected to the suspended end of the spring 10, and the other end of the pull rope 12 is fixedly connected to the upper cover 7. The pull rope 12 is configured to pull the suspended end of the spring 10 upward to an elastically deformed, energy-storing state. When the power strip 2 experiences a short circuit, generating high temperature or an open flame, and the pull rope 12 is burned through, the suspended end of the spring 10 releases energy, recovers from the elastically deformed state to a free state, and ejects downward to press the switch 9, thereby cutting off the power supply to the power strip 2. (See appendix) Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 .

[0031] Preferably, in one embodiment of the present invention, the spring ejection device further includes a top head 11, a circular tube 15, a plate 116, and a through hole 113. The plate 116 is horizontally disposed at the left end of the opening of the upper cover 7 and located above the switch 9 and below the top plate 8, with one end fixedly installed on the inner side of the opening of the upper cover 7. The circular tube 15 is vertically disposed, with its upper end fixedly installed on the lower end face of the plate 116 and its lower end disposed above the switch 9. The spring 10 is a compression spring, inserted from bottom to top into the circular tube 15, with its upper end contacting and installed on the lower end face of the plate 116. The through hole 113 is disposed on the plate 116 and located above the circular tube 15, with its diameter being smaller than the outer diameter of the spring 10. The top head 11... 1 is configured as a stepped shaft with a thicker bottom and a thinner top. The outer diameter of its lower end is larger than the diameter of the central hole of the spring 10, and the outer diameter of its upper end is matched with the diameter of the central hole of the spring 10 and inserted into the lower end of the central hole of the spring 10. One end of the pull rope 12 is connected to the upper end of the top head 11, and the other end of the pull rope 12 passes through the central hole of the spring 10 and the through hole I13, and is fixedly connected to the upper cover 7. It is configured to pull the spring 10 to an elastically compressed energy storage state. When the power strip 2 is short-circuited and generates high temperature or open flame, and the pull rope 12 is baked and burned off, the lower end of the spring 10 releases energy and recovers from the elastically compressed state to the free state. The released energy bounces downward and presses the switch 9 through the top head 11, thereby cutting off the power supply to the power strip 2. In this embodiment, the spring 10 is configured as a compression spring, with the lower end of the spring 10 pulled upwards by the pull rope 12. The structure is simple and easy to implement. Furthermore, when the pull rope 12 is burned through by heating, the lower end of the spring 10 is released and ejected downwards. The ejection direction is easy to control, allowing for precise pressure application to the switch 9. (See attached document) Figure 2 Appendix Figure 3 and appendices Figure 5 .

[0032] Preferably, in one embodiment of the present invention, it further includes a plurality of through holes II14 and a plate II17. The plate II17 is horizontally disposed at the right end of the opening of the upper cover 7, and one end of the plate II17 is fixedly installed on the inner side of the opening of the upper cover 7. The plurality of through holes II14 are respectively vertically disposed on the right edge of the plate I16 and the left edge of the plate II17. The plurality of through holes II14 are arranged sequentially from front to back along the right edge of the plate I16 and the left edge of the plate II17. One end of the pull rope 12 is configured to be connected to the upper end of the top head 11. The cable is fixedly connected, with its other end passing sequentially through the central hole of the spring 10, the through hole I13, then sequentially through the first through hole II14 at the front end of the right edge of the plate I16, the first through hole II14 at the front end of the left edge of the plate II17, then sequentially through the second through hole II14 at the front end of the right edge of the plate I16, the second through hole II14 at the front end of the left edge of the plate II17, until it passes through the last through hole II14, at which point it is fixedly connected, and configured to pull the spring 10 to an elastically compressed energy storage state. This embodiment increases the coverage area of ​​the pull cord 12 above the power strip 2, increasing the probability that the pull cord 12 will be burned off when the power strip 2 experiences a short circuit and generates high temperature or open flame. See attached document. Figure 4 Appendix Figure 5 and appendix Figure 6 .

[0033] Furthermore, in one embodiment of the present invention, a fire extinguishing box 4 is also included. This box is configured as a sealed inner cavity filled with fire extinguishing agent. It is disposed within the opening of the upper cover 7, and its upper end is fixedly connected to the lower end face of the top plate 8. When the power strip 2 experiences a short circuit, generating high temperature or open flame, the fire extinguishing agent inside the box expands due to the increased temperature, eventually bursting the box and spraying outwards for further fire prevention and extinguishing. This embodiment, including the fire extinguishing box 4, adds another layer of fire prevention and extinguishing protection. See attached document. Figure 2 and appendix Figure 4 .

[0034] Furthermore, in one embodiment of the present invention, a plurality of U-shaped grooves II19 are also included, with their openings facing downwards and respectively disposed along the lower periphery of the housing 6, suitable for the passage of wires. This structure facilitates the passage of lower plug wires from below. See attached document. Figure 1 and appendix Figure 4 .

[0035] Furthermore, in one embodiment of the present invention, a plurality of U-shaped grooves III20 are also included, with their openings facing upwards and respectively disposed along the upper periphery of the housing 6, suitable for the passage of wires. This structure facilitates the passage of lower-profile plug wires from above. See attached document. Figure 1 and appendix Figure 4 .

[0036] Preferably, in one embodiment of the present invention, the switch 9 of the power strip 2 is configured to disconnect the power supply when its front end is pressed and connect the power supply when its rear end is pressed. The suspended end of the spring 10 is located directly above the front end of the switch 9. When the suspended end of the spring 10 is in an energy-releasing state, it is configured to press down the front end of the switch 9 to disconnect the power supply. The functional configuration of the switch 9 given in this embodiment facilitates cutting off the power supply by pressing the front end of the switch 9. See attached document. Figure 4 .

[0037] Furthermore, in one embodiment of the present invention, four bosses I21 and four square grooves I22 are also included. The shape of the bosses I21 matches the groove shape of the square grooves I22. Two of the bosses I21 are respectively disposed on the front outer side and the rear outer side of the lower left end of the box body 6, and the other two bosses I21 are respectively disposed on the front outer side and the rear outer side of the lower right end of the box body 6. Two of the square grooves I22 are respectively disposed on the front side and the rear side of the upper left end of the bottom cover 5 and are positioned relative to the box body. The two protrusions I21 at the lower left end of the box 6 are positioned to match each other. The other two square grooves I22 are respectively located on the front and rear sides of the upper right end of the bottom cover 5, and their positions match the positions of the two protrusions I21 at the lower right end of the box 6. These four protrusions I21 and four square grooves I22 are configured such that when the bottom cover 5 is installed on the lower end of the box 6, the four protrusions I21 are suitable for engaging with the four square grooves I22, thereby making the connection between the bottom cover 5 and the lower end of the box 6 more secure. This embodiment has a simple structure and is easy to implement. See appendix. Figure 1 and appendix Figure 4 .

[0038] Furthermore, in one embodiment of the present invention, four bosses II23 and four square grooves II24 are also included. The shapes of the bosses II23 and the groove shapes of the square grooves II24 are matched. Two of the bosses II23 are respectively disposed on the front outer side and the rear outer side of the upper left end of the box body 6, and the other two bosses II23 are respectively disposed on the front outer side and the rear outer side of the upper right end of the box body 6. Two square grooves II24 are respectively disposed on the front side and the rear side of the lower left end of the upper cover 7 and are positioned relative to the aforementioned box body. The two protrusions II23 at the upper left end of the box 6 are positioned to match each other. The other two square grooves II24 are respectively located on the front and rear sides of the lower right end of the upper cover 7, and their positions match the positions of the two protrusions II23 at the upper right end of the box 6. These four protrusions II23 and four square grooves II24 are configured such that when the upper cover 7 is installed on the upper end of the box 6, the four protrusions II23 are suitable for engaging with the four square grooves II24, thus making the connection between the upper cover 7 and the upper end of the box 6 more secure. This embodiment has a simple structure and is easy to implement. See appendix. Figure 1 and appendix Figure 4 .

[0039] Furthermore, it should be specifically noted that the above are only some preferred embodiments according to the solution provided by the present invention. Of course, many other alternative structures with equivalent functions can be generated according to the solution provided by the present invention. For example, another alternative spring structure according to the solution provided by the present invention is as follows: the spring 10 is replaced with a leaf spring 25, one end of the leaf spring 25 is fixedly installed on the side wall of the box 6, the other end of the leaf spring 25 is suspended and positioned above the switch 9, one end of the pull rope 12 is connected to the suspended end of the leaf spring 25, and the other end of the pull rope 12 is fixedly connected to the upper cover 7. The pull rope 12 is configured to pull the suspended end of the leaf spring 25 to an upward elastic bending deformation energy storage state. When the power strip 2 is short-circuited and generates high temperature or open flame, the pull rope 12 is baked and burned off. The suspended end of the leaf spring 25 releases energy and recovers from the elastic deformation state to the free state, and springs downward to press the switch 9, which can also realize the power cut-off of the power strip 2. See Appendix. Figure 7 Similarly, there are many embodiments that can be given according to the solution provided by the present invention, which will not be described in detail here, but this does not limit the scope of protection of the present invention.

Claims

1. An auxiliary power-off fireproof power strip device, characterized in that, include: Fireproof box device (1), which includes a bottom cover (5), a box body (6), and a top cover (7). The box body (6) is configured as a sleeve barrel shape, and its side is provided with slots for wires to pass through. The opening of the bottom cover (5) matches the lower opening of the box body (6), and its fixed cover is installed on the lower opening of the box body (6). The top cover (7) includes a top plate (8) and a surrounding side wall located at the lower periphery of the top plate (8). The surrounding side wall forms an upper barrel-shaped opening. The opening matches the upper opening of the box body (6). The fixed cover (7) is installed on the upper end of the box body (6). A U-shaped groove I (18) is provided on the front edge of the bottom cover (5) for wires to pass through. The power strip (2) has several sets of power socket holes suitable for power plug insertion on its upper surface. Its left end is set as the power cord inlet end. A switch (9) is also set on the upper surface of the power cord inlet end. The switch (9) is configured to disconnect or connect the power supply of the power strip (2) by pressing the switch (9). The power strip (2) is fixedly installed inside the box (6) of the fireproof box device (1). Its lower end is installed on the upper surface of the bottom cover (5). The spring-launching device (3) includes a spring ejection device and a pull rope (12). The spring ejection device is fixedly installed above the switch (9), and a spring (10) is fixedly installed on it. One end of the spring (10) is suspended and located above the switch (9). One end of the pull rope (12) is connected to the suspended end of the spring (10), and the other end of the pull rope (12) is fixedly connected to the upper cover (7). The pull rope (12) is configured to pull the suspended end of the spring (10) upward to an energy-storing state of elastic deformation. When the power strip (2) is short-circuited and generates high temperature or open flame, the pull rope (12) is baked and burned off. The suspended end of the spring (10) releases energy and recovers from the elastic deformation state to the free state, ejecting downward to press the switch (9). The power supply to the power strip (2) is cut off by pressing the switch (9).

2. The auxiliary power-off fireproof power strip device according to claim 1, characterized in that: The spring ejection device further includes a top head (11), a round tube (15), a plate I (16), and a through hole I (13). The plate I (16) is horizontally arranged at the left end of the opening of the upper cover (7) and is located above the switch (9) and below the top plate (8). One end of the plate I (16) is fixedly installed on the inner side of the opening of the upper cover (7). The round tube (15) is vertically arranged, with its upper end fixedly installed on the lower end face of the plate I (16) and its lower end located above the switch (9). The spring (10) is a compression spring. The spring (10) is inserted into the round tube (15) from bottom to top, and its upper end is in contact with the lower end face of the plate I (16). The through hole I (13) is located on the plate I (16) and above the round tube (15). Its diameter is set to be smaller than the outer diameter of the spring (10). The top head (11) is set to... The lower end of the stepped shaft is thicker than the upper end. Its outer diameter at the lower end is larger than the diameter of the central hole of the spring (10), and its outer diameter at the upper end is matched with the diameter of the central hole of the spring (10) and inserted into the lower end of the central hole of the spring (10). One end of the pull rope (12) is connected to the upper end of the top head (11), and the other end of the pull rope (12) passes through the central hole of the spring (10) and the through hole I (13) and is fixedly connected to the upper cover (7). It is configured to pull the spring (10) to an elastically compressed energy storage state. When the power strip (2) is short-circuited and generates high temperature or open flame, the pull rope (12) is baked and burned off. The lower end of the spring (10) releases energy and recovers from the elastically compressed state to the free state. The released energy bounces downward and presses the switch (9) through the top head (11). The power supply to the power strip (2) is cut off by pressing the switch (9).

3. The auxiliary power-off fireproof power strip device according to claim 2, characterized in that: It also includes several through holes II (14) and a plate II (17). The plate II (17) is horizontally arranged inside the right end of the opening of the upper cover (7), and one end of it is fixedly installed on the inner side of the opening of the upper cover (7). Several through holes II (14) are respectively vertically arranged on the right edge of the plate I (16) and the left edge of the plate II (17). Several through holes II (14) are arranged sequentially from front to back along the right edge of the plate I (16) and the left edge of the plate II (17). One end of the pull rope (12) is fixedly connected to the upper end of the top head (11), and the other end of the pull rope (12) is fixedly connected to the top end of the top head (11). The end passes through the middle hole of the spring (10) and the through hole I (13) in sequence, then through the first through hole II (14) at the front end of the right edge of the plate I (16), the first through hole II (14) at the front end of the left edge of the plate II (17), then through the second through hole II (14) at the front end of the right edge of the plate I (16), the second through hole II (14) at the front end of the left edge of the plate II (17), until it passes through the last through hole II (14) in sequence, and is fixedly connected to the through hole II (14), and is set to pull the spring (10) to the energy storage state of elastic compression.

4. The auxiliary power-off fireproof power strip device according to claim 1 or claim 2, characterized in that: It also includes a fire extinguishing box (4), which is configured as a box with a closed inner cavity. The inner cavity of the box is filled with fire extinguishing agent. It is located in the opening of the cover (7). Its upper end is fixedly connected to the lower end face of the top plate (8). When the power strip (2) is short-circuited and generates high temperature or open flame, the fire extinguishing agent in the box expands in volume due to the increase in temperature until the box is burst and sprayed outward for further fire prevention and fire extinguishing.

5. The auxiliary power-off fireproof power strip device according to claim 1, characterized in that: It also includes several U-shaped grooves II (19), the groove openings of which are respectively set at the lower edge of the box body (6) around the perimeter, suitable for the passage of wires.

6. The auxiliary power-off fireproof power strip device according to claim 1, characterized in that: It also includes several U-shaped grooves III (20), the groove openings of which are respectively set on the upper edge of the box body (6) and are suitable for the passage of wires.

7. The auxiliary power-off fireproof power strip device according to claim 1, characterized in that: The switch (9) of the power strip (2) is configured to disconnect the power supply when its front end is pressed and connect the power supply when its rear end is pressed. The suspended end of the spring (10) is located directly above the front end of the switch (9). When the suspended end of the spring (10) is in the energy release state, it is configured to press down the front end of the switch (9) to disconnect the power supply.

8. The auxiliary power-off fireproof power strip device according to claim 1, characterized in that: It also includes four protrusions I (21) and four square grooves I (22). The shape of the protrusions I (21) matches the shape of the square grooves I (22). Two of the protrusions I (21) are respectively located on the front outer side and the rear outer side of the lower left end of the box body (6). The other two protrusions I (21) are respectively located on the front outer side and the rear outer side of the lower right end of the box body (6). The two square grooves I (22) are respectively located on the front side and the rear side of the upper left end of the bottom cover (5) and their positions are the same as the two protrusions I (21) on the lower left end of the box body (6). The positions of the platform I (21) are matched, and the other two square grooves I (22) are respectively set on the front and rear sides of the upper right end of the bottom cover (5) and their positions are matched with the positions of the two protrusions I (21) at the lower right end of the box body (6). The four protrusions I (21) and the four square grooves I (22) are configured such that when the bottom cover (5) is installed on the lower end of the box body (6), the four protrusions I (21) are suitable for being inserted into the four square grooves I (22) to make the connection between the bottom cover (5) and the lower end of the box body (6) more secure.

9. The auxiliary power-off fireproof power strip device according to claim 1, characterized in that, It also includes four bosses II (23) and four square grooves II (24). The shape of the bosses II (23) matches the shape of the square grooves II (24). Two of the bosses II (23) are respectively located on the front outer side and the rear outer side of the upper left end of the box body (6), and the other two bosses II (23) are respectively located on the front outer side and the rear outer side of the upper right end of the box body (6). The two square grooves II (24) are respectively located on the front side and the rear side of the lower left end of the top cover (7) and their positions are the same as the two bosses II (23) on the upper left end of the box body (6). The positions of the platform II (23) are matched, and the other two square grooves II (24) are respectively set on the front and rear sides of the lower right end of the upper cover (7) and their positions are matched with the positions of the two protrusions II (23) at the upper right end of the box body (6). The four protrusions II (23) and the four square grooves II (24) are configured such that when the upper cover (7) is installed on the upper end of the box body (6), the four protrusions II (23) are suitable for being inserted into the four square grooves II (2) 4 to make the connection between the upper cover (7) and the upper end of the box body (6) more secure.

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