Arc extinguishing and electric shock protection device with fire extinguishing device

Abstract

The present invention relates to the technical field of electric protectors, and discloses an arc extinguishing and electric shock protection electric protector with a fire extinguishing device, comprising a protection box, a shock block is fixedly mounted on the top inner wall of the protection box, an arc-shaped shock plate is fixedly mounted on the top inner wall of the protection box, the top end of the arc-shaped shock plate extends outside the protection box, a shock rod is hingedly mounted on the top inner wall of the protection box, the arc-shaped shock plate penetrates the shock rod and is slidably connected to the shock rod, and also comprises: a power-off mechanism, the power-off mechanism comprises an arc spring fixedly mounted on the top inner wall of the protection box, the end of the arc spring is fixedly connected to the shock rod, a shock groove is provided on the surface of the shock rod, and a T-shaped sliding block is slidably mounted in the shock groove. In the present invention, an arc is generated in the process of the shock rod leaving the shock block, and the arc will be absorbed by a plurality of arc extinguishing grids and divided into a plurality of short arcs, thereby achieving accurate power off and effective arc processing.

Description

Technical Field

[0001] The invention relates to the technical field of electric protector equipment, in particular to an arc extinguishing and electric shock prevention electric protector with a fire extinguishing device. Background Art

[0002] Intelligent arc extinguishing safety power protectors are currently widely used in various power lines. Existing intelligent arc extinguishing safety power protectors are generally composed of circuit breakers and leakage protectors. Their function is to automatically cut off the circuit when leakage, short circuit and overload occur in the circuit. When the circuit breaker automatically trips when encountering an abnormal circuit, an arc will be generated, and the generated arc will be sucked into the arc extinguishing device for arc extinguishing.

[0003] The power protector is mainly used to safely cut off power when an electrical appliance fails and a short circuit occurs. When a short circuit occurs, the contact rod will separate and an arc will be generated. Most circuit breakers need to consider the voltage threshold during use. Only when the threshold is reached can the power be accurately cut off. It is not accurate enough to judge whether there is a short circuit. If the judgment is wrong for a long time, the appliance will be damaged due to high temperature, which will indirectly increase the risk of fire. Summary of the invention

[0004] The purpose of the present invention is to provide an arc extinguishing and electric shock protection electrical protector with a fire extinguishing device to solve the problem that an arc will be generated when the contact rod is separated when the power is cut off due to a short circuit. Most circuit breakers need to consider the voltage threshold during use. Only when the threshold is reached can the power be cut off accurately. It is not accurate enough to judge whether there is a short circuit. If the judgment is wrong for a long time, the electrical appliance will be damaged due to high temperature, which will indirectly increase the risk of fire.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an arc extinguishing and electric shock protection device with a fire extinguishing device, comprising a protection box, a shock block is fixedly installed on the top inner wall of the protection box, an arc-shaped shock plate is fixedly installed on the top inner wall of the protection box, the top end of the arc-shaped shock plate extends outside the protection box, a shock rod is hingedly installed on the top inner wall of the protection box, the arc-shaped shock plate penetrates the shock rod and is slidably connected to the shock rod, and also includes:

[0007] Power-off mechanism, the power-off mechanism includes an arc spring fixedly installed on the inner wall of the top of the protection box, the end of the arc spring is fixedly connected to the electric shock rod, an electric shock groove is opened on the surface of the electric shock rod, a T-shaped sliding block is slidably installed in the electric shock groove, a metal ball is fixedly installed on the surface of the T-shaped sliding block, a U-shaped mounting plate is fixedly installed on the inner wall of the back of the protection box, an H-shaped block is fixedly installed in the U-shaped mounting plate, a wire is wound around the H-shaped block, the end of the wire is fixedly connected to the electric shock block, an adsorption block is fixedly installed at the left end of the wire, a wiring terminal is fixedly installed at the bottom of the protection box, the bottom end of the wire is fixedly connected to the wiring terminal, a rotating rod is fixedly installed on the front of the electric shock rod, a strip-shaped block is rotatably installed at the left end of the rotating rod, a strip-shaped groove is opened on the strip-shaped block, a limit slider is fixedly installed in the protection box, and the limit slider penetrates through the strip-shaped groove and is slidably connected to the strip-shaped groove.

[0008] Further, a limit mechanism is provided on the strip-shaped block, the limit mechanism includes a rectangular sleeve slidably sleeved on the strip-shaped block, a strip-shaped limit rod is fixedly installed on the front of the rectangular sleeve, the front end of the strip-shaped limit rod extends outside the protection box and is slidably connected to the protection box, and a pull plate is fixedly installed at the front end of the strip-shaped limit rod.

[0009] Further, a rectangular limit block is slidably sleeved on the strip-shaped limit rod, the front of the rectangular limit block is fixedly connected to the protection box, a T-shaped installation groove is opened in the rectangular limit block, a vertical groove is opened in the T-shaped installation groove, limit springs are respectively fixedly installed on the top inner wall and the bottom inner wall of the vertical groove, arc-shaped limit blocks are respectively fixedly installed at the ends of the two limit springs close to each other, both arc-shaped limit blocks are slidably connected to the vertical groove, the strip-shaped limit rod penetrates through the T-shaped installation groove and is slidably connected to the T-shaped installation groove, arc-shaped clamping blocks are respectively fixedly installed at the top and the bottom of the strip-shaped limit rod, and the two arc-shaped clamping blocks are respectively in contact with the two arc-shaped limit blocks.

[0010] Further, a transmission mechanism is provided in the protection box, the transmission mechanism includes a fuse fixedly installed on the inner wall of the front of the protection box, a rectangular mounting plate is fixedly installed at the end of the fuse, a T-shaped limit plate is fixedly installed on the inner wall of the back of the protection box, the T-shaped limit plate penetrates through the rectangular mounting plate and is slidably connected to the rectangular mounting plate, and a transmission spring is fixedly installed on the inner wall of the back of the protection box, and the front end of the transmission spring is fixedly connected to the rectangular mounting plate.

[0011] Furthermore, a transmission rod is fixedly installed on the bottom of the rectangular mounting plate, a dry powder box is fixedly installed on the bottom inner wall of the protection box, a boosting spring is fixedly installed on the bottom inner wall of the dry powder box, a boosting plate is fixedly installed on the top of the boosting spring, the boosting plate is slidably connected to the dry powder box, an L-shaped discharge pipe is fixedly installed on the top of the dry powder box, a closing plate is fixedly installed on the right end of the transmission rod, the right end of the closing plate extends into the L-shaped discharge pipe and is slidably connected to the L-shaped discharge pipe.

[0012] Furthermore, a fire extinguishing mechanism is arranged in the L-shaped discharge pipe, and the fire extinguishing mechanism includes a rotating rod rotatably installed in the L-shaped discharge pipe, the rotating rod passes through the L-shaped discharge pipe, a plurality of transmission blades are fixedly installed on the outer wall of the rotating rod, a plurality of transmission plates are fixedly installed on the rotating rod, a spray hood is hingedly installed on the right end of the L-shaped discharge pipe, a rubber connecting tube is fixedly installed in the L-shaped discharge pipe, and the right end of the rubber connecting tube extends into the spray hood and is fixedly connected to the inner wall of the spray hood.

[0013] Furthermore, an arc-shaped telescopic rod is fixedly installed on the left end of the spray hood, and the bottom end of the arc-shaped telescopic rod is fixedly connected to the L-shaped discharge pipe. An arc-shaped return spring is sleeved on the arc-shaped telescopic rod, and the bottom end of the arc-shaped return spring is fixedly connected to the L-shaped discharge pipe. The front end of the arc-shaped return spring is fixedly connected to the spray hood, and two Z-shaped transmission plates are fixedly installed on the left end of the spray hood.

[0014] Furthermore, a heat dissipation mechanism is provided in the protection box, and the heat dissipation mechanism includes a heat dissipation oil tank fixedly installed on the inner wall of the bottom of the protection box, a plurality of heat dissipation plates are fixedly installed on the right side of the heat dissipation oil tank, and the right sides of several heat dissipation plates extend outside the protection box, a plurality of insulating sleeves are fixedly installed on the top of the heat dissipation oil tank, and the tops of several insulating sleeves extend outside the heat dissipation oil tank, and arc extinguishing grids are respectively fixedly installed in several insulating sleeves.

[0015] The present invention has the following beneficial effects:

[0016] (1) The present invention is an arc extinguishing and electric shock protection device with a fire extinguishing device. The arc-shaped electric contact plate is energized, and the arc-shaped electric contact plate completes power transmission through the electric contact rod, the electric contact block, the electric wire and the terminal. When a short circuit occurs, the voltage generated by the electric wire will increase. Since the electric wire is wound around the H-shaped block, the electromagnetism on the H-shaped block will be enhanced. The H-shaped block will absorb the metal ball onto the adsorption block through the adsorption block. The adsorption block will drive the T-shaped sliding block to move. The T-shaped sliding block drives the electric contact rod to leave the electric contact block. At this time, the power is cut off. In the process of the electric contact rod leaving the electric contact block, an arc will be generated. The arc will be absorbed by a plurality of arc extinguishing grids and divided into multiple short arcs, thereby achieving accurate power off and effective arc processing.

[0017] (2) For an arc extinguishing and electric shock prevention power protector with a fire extinguishing device according to the present invention, when the electric shock rod leaves the electric shock block, it will drive the rotating rod to move. The rotating rod drives the strip-shaped block to move. The strip-shaped block will move towards the direction close to the U-shaped mounting plate. The strip-shaped block drives the rectangular sleeve to move synchronously. The rectangular sleeve drives the strip-shaped limiting rod to move. The strip-shaped limiting rod drives two arc-shaped clamping blocks to move. Since the electromagnetic suction force is greater than the limiting spring, at this time, the arc-shaped clamping blocks will push the two arc-shaped limiting blocks upward into the vertical groove. When the arc-shaped clamping blocks pass the arc-shaped limiting blocks, they will stop moving. At this time, the strip-shaped limiting rod will also drive the pull plate to move away from the protection box. At this time, it is convenient to observe whether the device is powered off. If the strip-shaped limiting rod is manually forced to be pushed inward, when the electric shock rod touches the electric shock block, a short circuit will occur again. After the hand releases the strip-shaped limiting rod, the strip-shaped limiting rod will rebound again, improving the reliability and safety of the device;

[0018] (3) For an arc extinguishing and electric shock prevention power protector with a fire extinguishing device according to the present invention, when the arc extinguishing grid plates are worn out after being used multiple times and cannot effectively eliminate the arc, open flames may be generated under the high temperature action of the arc. The open flames will burn the fuse wire, and the fuse wire will break quickly. Since the transmission spring is in a stretched state under normal conditions, at the moment when the fuse wire breaks, the rectangular mounting plate will move away from the fuse wire under the elastic force of the transmission spring. The rectangular mounting plate drives the transmission rod to move. The transmission rod drives the closing plate to move synchronously. At this time, the L-shaped discharge pipe is in an open state. The closing plate will stay in the inner wall of the back surface of the L-shaped discharge pipe. The dry powder box is released from the sealed state. Under the action of the pressure difference inside and outside the dry powder box, the pressurizing spring suddenly releases the compressed state and moves upward. The pressurizing spring drives the pressurizing plate to rise. The pressurizing plate sprays out the carbon dioxide in the dry powder box. The carbon dioxide passes through the L-shaped discharge pipe, the rubber connecting pipe and the spray hood to extinguish the fire at the position of the arc extinguishing grid plates, solving the danger of fire;

[0019] (4) For an arc extinguishing and electric shock prevention power protector with a fire extinguishing device according to the present invention, when the carbon dioxide passes through the L-shaped discharge pipe, it will drive several driving fan blades to rotate. The driving fan blades drive the rotating rod to rotate. The rotating rod drives several driving plates to rotate. During the rotation process, the driving plates will contact and push the Z-shaped driving plate to move downward. The Z-shaped driving plate drives the spray hood to move downward. Since the spray hood is hinged to the L-shaped discharge pipe, the spray hood will generate a force to move right downward. At this time, the angle of the spray hood will shift downward. Correspondingly, the arc-shaped reset spring will undergo a tensile deformation. After the driving plate leaves the Z-shaped driving plate, the spray hood will reset under the elastic force of the arc-shaped reset spring, forming a reciprocating rotation of the angle of the spray hood. During this process, the carbon dioxide sprayed by the spray hood will increase the coverage range, improving the efficiency of extinguishing the open flames.

[0020] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of a side partial cross-sectional structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0025] Figure 4 It is a schematic diagram of the internal structure of the present invention;

[0026] Figure 5 It is a schematic cross-sectional structure diagram of a rectangular limit block of the present invention;

[0027] Figure 6 It is a front cross-sectional structural schematic diagram of the present invention;

[0028] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure of B;

[0029] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of C in the figure.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] In the figure: 1, protection box; 2, electric shock block; 3, arc-shaped electric shock plate; 4, electric shock rod; 5, power-off mechanism; 501, arc-shaped spring; 502, electric shock groove; 503, T-shaped sliding block; 504, metal ball; 505, C-shaped mounting plate; 506, H-shaped block; 507, electric wire; 508, adsorption block; 509, wiring terminal; 510, rotating rod; 511, strip-shaped block; 512, strip-shaped groove; 513, limit sliding block; 6, limit mechanism; 601, rectangular sleeve; 602, strip-shaped limit rod; 603, pull plate; 604, rectangular limit block; 605, T-shaped mounting groove; 606, vertical groove; 607, limit spring; 608, arc-shaped limit block; 609, arc-shaped clamping block; 7, transmission mechanism; 701, fuse; 702, rectangular mounting plate; 703, T-shaped limit plate; 704, transmission spring; 705, transmission rod; 706, dry powder box; 707, boosting spring; 708, boosting plate; 709, L-shaped discharge pipe; 710, closing plate; 8, fire extinguishing mechanism; 801, rotating rod; 802, transmission fan blade; 803, transmission plate; 804, spraying cover; 805, rubber connecting pipe; 806, arc-shaped telescopic rod; 807, arc-shaped reset spring; 808, Z-shaped transmission plate; 9, heat dissipation mechanism; 901, heat dissipation oil tank; 902, heat dissipation plate; 903, insulating sleeve; 904, arc extinguishing grid plate. Specific implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figure 1-Figure 8 As shown, the present invention is an arc extinguishing and electric shock prevention power protector with a fire extinguishing device, including a protection box 1. An electric shock block 2 is fixedly installed on the inner wall of the top of the protection box 1. An arc-shaped electric shock plate 3 is fixedly installed on the inner wall of the top of the protection box 1. The top end of the arc-shaped electric shock plate 3 extends outside the protection box 1. An electric shock rod 4 is hingedly installed on the inner wall of the top of the protection box 1. The arc-shaped electric shock plate 3 penetrates through the electric shock rod 4 and is slidably connected to the electric shock rod 4. Further included are:

[0034] Power-off mechanism 5, the power-off mechanism 5 includes an arc spring 501 fixedly installed on the inner wall of the top of the protection box 1, the end of the arc spring 501 is fixedly connected to the electric shock rod 4, an electric shock groove 502 is formed on the surface of the electric shock rod 4, a T-shaped sliding block 503 is slidably installed in the electric shock groove 502, a metal ball 504 is fixedly installed on the surface of the T-shaped sliding block 503, a U-shaped mounting plate 505 is fixedly installed on the inner wall of the back of the protection box 1, an H-shaped block 506 is fixedly installed in the U-shaped mounting plate 505, a wire 507 is wound around the H-shaped block 506, the end of the wire 507 is fixedly connected to the electric shock block 2, an adsorption block 508 is fixedly installed at the left end of the wire 507, a wiring terminal 509 is fixedly installed at the bottom of the protection box 1, the bottom end of the wire 507 is fixedly connected to the wiring terminal 509, a rotating rod 510 is fixedly installed on the front of the electric shock rod 4, a strip-shaped block 511 is rotatably installed at the left end of the rotating rod 510, a strip-shaped groove 512 is formed on the strip-shaped block 511, a limiting slider 513 is fixedly installed in the protection box 1, and the limiting slider 513 penetrates through the strip-shaped groove 512 and is slidably connected to the strip-shaped groove 512.

[0035] As Figure 1 and Figure 3 shown, a limiting mechanism 6 is provided on the strip-shaped block 511, the limiting mechanism 6 includes a rectangular sleeve 601 slidably sleeved on the strip-shaped block 511, a strip-shaped limiting rod 602 is fixedly installed on the front of the rectangular sleeve 601, the front end of the strip-shaped limiting rod 602 extends outside the protection box 1 and is slidably connected to the protection box 1, and a pull plate 603 is fixedly installed at the front end of the strip-shaped limiting rod 602.

[0036] The rotating rod 510 drives the strip-shaped block 511 to move, the strip-shaped block 511 will move in the direction close to the U-shaped mounting plate 505, the strip-shaped block 511 drives the rectangular sleeve 601 to move synchronously, and the rectangular sleeve 601 drives the strip-shaped limiting rod 602 to move.

[0037] As Figure 2 and Figure 5 shown, a rectangular limiting block 604 is slidably sleeved on the strip-shaped limiting rod 602, the front of the rectangular limiting block 604 is fixedly connected to the protection box 1, a T-shaped installation groove 605 is formed in the rectangular limiting block 604, a vertical groove 606 is formed in the T-shaped installation groove 605, limiting springs 607 are respectively fixedly installed on the top inner wall and the bottom inner wall of the vertical groove 606, arc-shaped limiting blocks 608 are respectively fixedly installed at the ends of the two limiting springs 607 close to each other, both arc-shaped limiting blocks 608 are slidably connected to the vertical groove 606, the strip-shaped limiting rod 602 penetrates through the T-shaped installation groove 605 and is slidably connected to the T-shaped installation groove 605, arc-shaped clamping blocks 609 are respectively fixedly installed at the top and the bottom of the strip-shaped limiting rod 602, and the two arc-shaped clamping blocks 609 are respectively in contact with the two arc-shaped limiting blocks 608.

[0038] The strip limit rod 602 will drive the two arc-shaped blocks 609 to move. Since the electromagnetic suction force is greater than the limit spring 607, the arc-shaped block 609 will push the two arc-shaped limit blocks 608 upward into the vertical groove 606. When the arc-shaped block 609 passes the arc-shaped limit block 608, it will stop moving. At this time, the strip limit rod 602 will also drive the pull plate 603 to move away from the protection box 1. At this time, it is convenient to observe whether the device is powered on. If the strip limit rod 602 is manually forced to be pushed inward, a short circuit will occur again when the electric shock rod 4 contacts the electric shock block 2. After the strip limit rod 602 is released by hand, the strip limit rod 602 will rebound again, thereby improving the reliability and safety of the device.

[0039] like Figure 3 and Figure 8 As shown, a transmission mechanism 7 is arranged in the protection box 1, and the transmission mechanism 7 includes a fuse 701 fixedly mounted on the front inner wall of the protection box 1, a rectangular mounting plate 702 is fixedly mounted on the end of the fuse 701, a T-shaped limit plate 703 is fixedly mounted on the back inner wall of the protection box 1, the T-shaped limit plate 703 penetrates the rectangular mounting plate 702 and is slidably connected to the rectangular mounting plate 702, a transmission spring 704 is fixedly mounted on the back inner wall of the protection box 1, and the front end of the transmission spring 704 is fixedly connected to the rectangular mounting plate 702.

[0040] When the arc extinguishing grid 904 is worn out after repeated use and cannot effectively extinguish the arc, an open flame may be generated under the high temperature of the arc, and the open flame will burn the fuse 701, causing the fuse 701 to break quickly. Since the transmission spring 704 is normally in a stretched state, at the moment the fuse 701 breaks, the rectangular mounting plate 702 will move away from the fuse 701 under the elastic force of the transmission spring 704.

[0041] like Figure 6 and Figure 7 As shown, a transmission rod 705 is fixedly installed on the bottom of the rectangular mounting plate 702, a dry powder box 706 is fixedly installed on the bottom inner wall of the protection box 1, a boosting spring 707 is fixedly installed on the bottom inner wall of the dry powder box 706, a boosting plate 708 is fixedly installed on the top of the boosting spring 707, the boosting plate 708 is slidably connected to the dry powder box 706, an L-shaped discharge pipe 709 is fixedly installed on the top of the dry powder box 706, a closing plate 710 is fixedly installed on the right end of the transmission rod 705, and the right end of the closing plate 710 extends into the L-shaped discharge pipe 709 and is slidably connected to the L-shaped discharge pipe 709.

[0042] The rectangular mounting plate 702 will drive the transmission rod 705 to move, and the transmission rod 705 will drive the closing plate 710 to move synchronously. At this time, the L-shaped discharge pipe 709 is in an open state, and the closing plate 710 will stay on the back inner wall of the L-shaped discharge pipe 709. The sealing state in the dry powder box 706 is released, and the booster spring 707 is suddenly released from the compressed state and moves upward under the action of the pressure difference between the inside and outside of the dry powder box 706. The booster spring 707 will drive the booster plate 708 to rise, and the booster plate 708 will spray the carbon dioxide in the dry powder box 706. The carbon dioxide passes through the L-shaped discharge pipe 709, the rubber connecting pipe 805 and the spray hood 804 to extinguish the arc extinguishing grid 904, thereby eliminating the risk of fire.

[0043] like Figure 7 As shown, a fire extinguishing mechanism 8 is arranged in the L-shaped discharge pipe 709, and the fire extinguishing mechanism 8 includes a rotating rod 801 rotatably installed in the L-shaped discharge pipe 709, the rotating rod 801 penetrates the L-shaped discharge pipe 709, a plurality of transmission blades 802 are fixedly installed on the outer wall of the rotating rod 801, a plurality of transmission plates 803 are fixedly installed on the rotating rod 801, a spray hood 804 is hingedly installed at the right end of the L-shaped discharge pipe 709, a rubber connecting tube 805 is fixedly installed in the L-shaped discharge pipe 709, and the right end of the rubber connecting tube 805 extends into the spray hood 804 and is fixedly connected to the inner wall of the spray hood 804.

[0044] When carbon dioxide passes through the L-shaped discharge pipe 709, it will drive several transmission blades 802 to rotate, the transmission blades 802 will drive the rotating rod 801 to rotate, the rotating rod 801 will drive several transmission plates 803 to rotate, and the transmission plate 803 will contact and push the Z-shaped transmission plate 808 to move downward during the rotation process, and the Z-shaped transmission plate 808 will drive the spray cover 804 to move downward.

[0045] like Figure 7 As shown, an arc-shaped telescopic rod 806 is fixedly installed on the left end of the spray hood 804, and the bottom end of the arc-shaped telescopic rod 806 is fixedly connected to the L-shaped discharge pipe 709. An arc-shaped return spring 807 is sleeved on the arc-shaped telescopic rod 806, and the bottom end of the arc-shaped return spring 807 is fixedly connected to the L-shaped discharge pipe 709. The front end of the arc-shaped return spring 807 is fixedly connected to the spray hood 804, and two Z-shaped transmission plates 808 are fixedly installed on the left end of the spray hood 804.

[0046] Since the spray hood 804 is hinged to the L-shaped discharge pipe 709, the spray hood 804 will generate a force to move downward to the right. At this time, the angle of the spray hood 804 will be offset downward, and the corresponding arc-shaped return spring 807 will be stretched and deformed. After the transmission plate 803 leaves the Z-shaped transmission plate 808, the spray hood 804 will be reset under the elastic force of the arc-shaped return spring 807, forming a reciprocating rotation of the angle of the spray hood 804. During this process, the carbon dioxide sprayed from the spray hood 804 will increase the coverage range and improve the efficiency of extinguishing open flames.

[0047] As shown Figure 6 In the protection box 1, a heat dissipation mechanism 9 is provided. The heat dissipation mechanism 9 includes a heat dissipation oil tank 901 fixedly installed on the inner wall of the bottom of the protection box 1. A plurality of heat dissipation plates 902 are fixedly installed on the right side of the heat dissipation oil tank 901. The right sides of the plurality of heat dissipation plates 902 all extend outside the protection box 1. A plurality of insulating sleeves 903 are fixedly installed on the top of the heat dissipation oil tank 901. The tops of the plurality of insulating sleeves 903 all extend outside the heat dissipation oil tank 901. Arc extinguishing grid plates 904 are respectively fixedly installed in the plurality of insulating sleeves 903.

[0048] When the arc extinguishing grid plates 904 absorb the electric arc, the heat generated by the electric arc will be transferred to the cooling oil in the heat dissipation oil tank 901. After the temperature of the cooling oil rises, the heat will be dissipated through the plurality of heat dissipation plates 902.

[0049] During use, the arc-shaped contact plate 3 is electrified. The arc-shaped contact plate 3 completes power transmission through the contact rod 4, the contact block 2, the wire 507 and the terminal 509. When a short circuit occurs, the voltage generated by the wire 507 will increase. Since the wire 507 is wound around the H-shaped block 506, the electromagnetic force on the H-shaped block 506 will increase at this time. The H-shaped block 506 attracts the metal ball 504 to the attracting block 508 through the attracting block 508. The attracting block 508 will drive the T-shaped sliding block 503 to move. The T-shaped sliding block 503 drives the contact rod 4 to leave the contact block 2. At this time, the power is cut off. During the process of the contact rod 4 leaving the contact block 2, an electric arc will be generated. The electric arc will be absorbed by the plurality of arc extinguishing grid plates 904 and divided into multiple short arcs; when the contact rod 4 leaves the contact block 2, it will drive the rotating rod 510 to move. The rotating rod 510 drives the strip-shaped block 511 to move. The strip-shaped block 511 will move in the direction close to the C-shaped mounting plate 505. The strip-shaped block 511 drives the rectangular sleeve 601 to move synchronously. The rectangular sleeve 601 drives the strip-shaped limiting rod 602 to move. The strip-shaped limiting rod 602 will drive the two arc-shaped clamping blocks 609 to move. Since the electromagnetic suction force is greater than the limiting spring 607, at this time, the arc-shaped clamping blocks 609 will push the two arc-shaped limiting blocks 608 upward into the vertical groove 606. When the arc-shaped clamping blocks 609 pass the arc-shaped limiting blocks 608, they will stop moving. At this time, the strip-shaped limiting rod 602 will also drive the pull plate 603 to move away from the protection box 1. At this time, it is convenient to observe whether the device is powered off. If the strip-shaped limiting rod 602 is manually pushed inward forcefully, when the contact rod 4 touches the contact block 2, a short circuit will occur again. After the hand releases the strip-shaped limiting rod 602, the strip-shaped limiting rod 602 will bounce back again;

[0050] When the arc extinguishing grid 904 is worn out after being used many times and cannot effectively eliminate the arc, an open flame may be generated under the high temperature of the arc, and the open flame will burn the fuse 701, and the fuse 701 will quickly break. Since the transmission spring 704 is normally in a stretched state, at the moment when the fuse 701 breaks, the rectangular mounting plate 702 will move away from the fuse 701 under the elastic force of the transmission spring 704, and the rectangular mounting plate 702 will drive the transmission rod 705 to move, and the transmission rod 705 will drive the closing plate 710 to move synchronously. At this time, the L-shaped discharge pipe 709 is in an open state, and the closing plate 710 will stay on the back inner wall of the L-shaped discharge pipe 709, and the dry powder box 706 is unsealed. Under the action of the pressure difference between the inside and outside of the dry powder box 706, the booster spring 707 is suddenly released from the compressed state and moves upward, and the booster spring 707 will drive the booster plate 708 to rise, and the booster plate 708 will spray the carbon dioxide in the dry powder box 706. The L-shaped discharge pipe 709, the rubber connecting pipe 805 and the spray hood 804 extinguish the fire at the position of the arc extinguishing grid 904; when the carbon dioxide passes through the L-shaped discharge pipe 709, it will drive a number of transmission blades 802 to rotate, the transmission blades 802 drive the rotating rod 801 to rotate, and the rotating rod 801 drives a number of transmission plates 803 to rotate. During the rotation process, the transmission plate 803 will contact and push the Z-shaped transmission plate 808 to move downward, and the Z-shaped transmission plate 808 drives the spray hood 804 to move downward. Since the spray hood 804 is hinged to the L-shaped discharge pipe 709, the spray hood 804 will generate a force to move to the lower right. At this time, the angle of the spray hood 804 will shift downward, and the corresponding arc-shaped return spring 807 will be stretched and deformed. After the transmission plate 803 leaves the Z-shaped transmission plate 808, the spray hood 804 will be reset under the elastic force of the arc-shaped return spring 807, forming a reciprocating rotation of the angle of the spray hood 804. During this process, the carbon dioxide sprayed from the spray hood 804 will increase the coverage range.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An arc extinguishing and electric shock protection device with a fire extinguishing device, comprising a protection box (1), a shock block (2) is fixedly mounted on the top inner wall of the protection box (1), an arc-shaped shock plate (3) is fixedly mounted on the top inner wall of the protection box (1), the top end of the arc-shaped shock plate (3) extends outside the protection box (1), a shock rod (4) is hingedly mounted on the top inner wall of the protection box (1), the arc-shaped shock plate (3) penetrates the shock rod (4) and is slidably connected to the shock rod (4), characterized in that: Further included are: A power-off mechanism (5), the power-off mechanism (5) includes an arc spring (501) fixedly installed on the inner wall of the top of the protection box (1), the end of the arc spring (501) is fixedly connected to the electric shock rod (4), an electric shock groove (502) is formed on the surface of the electric shock rod (4), a T-shaped sliding block (503) is slidably installed in the electric shock groove (502), a metal ball (504) is fixedly installed on the surface of the T-shaped sliding block (503), a U-shaped mounting plate (505) is fixedly installed on the inner wall of the back of the protection box (1), an H-shaped block (506) is fixedly installed in the U-shaped mounting plate (505), a wire (507) is wound around the H-shaped block (506), the end of the wire (507) is fixedly connected to the electric shock block (2), an adsorption block (508) is fixedly installed at the left end of the wire (507), a wiring terminal (509) is fixedly installed at the bottom of the protection box (1), the bottom end of the wire (507) is fixedly connected to the wiring terminal (509), a rotating rod (510) is fixedly installed on the front of the electric shock rod (4), a strip-shaped block (511) is rotatably installed at the left end of the rotating rod (510), a strip-shaped groove (512) is formed in the strip-shaped block (511), a limit slider (513) is fixedly installed in the protection box (1), and the limit slider (513) penetrates through the strip-shaped groove (512) and is slidably connected to the strip-shaped groove (512).

2. The arc extinguishing and electric shock protection device with a fire extinguishing device according to claim 1 is characterized in that: A limit mechanism (6) is arranged on the strip-shaped block (511), the limit mechanism (6) includes a rectangular sleeve (601) slidably sleeved on the strip-shaped block (511), a strip-shaped limit rod (602) is fixedly installed on the front of the rectangular sleeve (601), the front end of the strip-shaped limit rod (602) extends outside the protection box (1) and is slidably connected to the protection box (1), and a pull plate (603) is fixedly installed at the front end of the strip-shaped limit rod (602).

3. The arc extinguishing and electric shock protection device with a fire extinguishing device according to claim 2 is characterized in that: A rectangular limit block (604) is slidably sleeved on the strip-shaped limit rod (602), the front of the rectangular limit block (604) is fixedly connected to the protection box (1), a T-shaped installation groove (605) is formed in the rectangular limit block (604), a vertical groove (606) is formed in the T-shaped installation groove (605), limit springs (607) are respectively fixedly installed on the top inner wall and the bottom inner wall of the vertical groove (606), arc-shaped limit blocks (608) are respectively fixedly installed at the ends of the two limit springs (607) close to each other, both arc-shaped limit blocks (608) are slidably connected to the vertical groove (606), the strip-shaped limit rod (602) penetrates through the T-shaped installation groove (605) and is slidably connected to the T-shaped installation groove (605), arc-shaped clamping blocks (609) are respectively fixedly installed at the top and the bottom of the strip-shaped limit rod (602), and the two arc-shaped clamping blocks (609) are respectively in contact with the two arc-shaped limit blocks (608).

4. The arc extinguishing and electric shock protection device with a fire extinguishing device according to claim 1, characterized in that: A transmission mechanism (7) is arranged in the protection box (1), the transmission mechanism (7) comprising a fuse (701) fixedly mounted on the front inner wall of the protection box (1), a rectangular mounting plate (702) fixedly mounted on the end of the fuse (701), a T-shaped limit plate (703) fixedly mounted on the back inner wall of the protection box (1), the T-shaped limit plate (703) passing through the rectangular mounting plate (702) and being slidably connected to the rectangular mounting plate (702), and a transmission spring (704) fixedly mounted on the back inner wall of the protection box (1), the front end of the transmission spring (704) fixedly connected to the rectangular mounting plate (702).

5. The arc extinguishing and electric shock protection device with a fire extinguishing device according to claim 4, characterized in that: A transmission rod (705) is fixedly mounted on the bottom of the rectangular mounting plate (702); a dry powder box (706) is fixedly mounted on the bottom inner wall of the protection box (1); a booster spring (707) is fixedly mounted on the bottom inner wall of the dry powder box (706); a booster plate (708) is fixedly mounted on the top of the booster spring (707); the booster plate (708) is slidably connected to the dry powder box (706); an L-shaped discharge pipe (709) is fixedly mounted on the top of the dry powder box (706); a closing plate (710) is fixedly mounted on the right end of the transmission rod (705); the right end of the closing plate (710) extends into the L-shaped discharge pipe (709) and is slidably connected to the L-shaped discharge pipe (709).

6. The arc extinguishing and electric shock protection device with a fire extinguishing device according to claim 5, characterized in that: A fire extinguishing mechanism (8) is arranged in the L-shaped discharge pipe (709), and the fire extinguishing mechanism (8) comprises a rotating rod (801) rotatably mounted in the L-shaped discharge pipe (709), the rotating rod (801) passes through the L-shaped discharge pipe (709), a plurality of transmission blades (802) are fixedly mounted on the outer wall of the rotating rod (801), a plurality of transmission plates (803) are fixedly mounted on the rotating rod (801), a spray hood (804) is hingedly mounted on the right end of the L-shaped discharge pipe (709), a rubber connecting pipe (805) is fixedly mounted in the L-shaped discharge pipe (709), and the right end of the rubber connecting pipe (805) extends into the spray hood (804) and is fixedly connected to the inner wall of the spray hood (804).

7. The arc extinguishing and electric shock protection device with a fire extinguishing device according to claim 6, characterized in that: An arc-shaped telescopic rod (806) is fixedly installed on the left end of the spray hood (804), and the bottom end of the arc-shaped telescopic rod (806) is fixedly connected to the L-shaped discharge pipe (709). An arc-shaped return spring (807) is sleeved on the arc-shaped telescopic rod (806), and the bottom end of the arc-shaped return spring (807) is fixedly connected to the L-shaped discharge pipe (709). The front end of the arc-shaped return spring (807) is fixedly connected to the spray hood (804), and two Z-shaped transmission plates (808) are fixedly installed on the left end of the spray hood (804).

8. The arc extinguishing and electric shock protection device with a fire extinguishing device according to claim 1, characterized in that: A heat dissipation mechanism (9) is arranged inside the protection box (1), and the heat dissipation mechanism (9) comprises a heat dissipation oil tank (901) fixedly mounted on the inner wall of the bottom of the protection box (1); a plurality of heat dissipation plates (902) are fixedly mounted on the right side of the heat dissipation oil tank (901); the right sides of the plurality of heat dissipation plates (902) extend outside the protection box (1); a plurality of insulation sleeves (903) are fixedly mounted on the top of the heat dissipation oil tank (901); the tops of the plurality of insulation sleeves (903) extend outside the heat dissipation oil tank (901); and arc extinguishing grids (904) are fixedly mounted inside the plurality of insulation sleeves (903).

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