A power distribution cabinet with line protection function

Abstract

The present invention relates to the field of power distribution cabinets, specifically a power distribution cabinet with a line protection function, comprising a cabinet body, a door panel is hinged at the front end of the cabinet body, partitions are fixedly connected on both sides of the inner wall of the cabinet body, sealing strips matched with the partitions are fixedly connected to the side walls of the door panel, three support plates are fixedly connected between two of the partitions, the three support plates are equidistantly arranged, and the space between the two partitions is divided into three installation compartments by the three support plates, and adjustment grooves are provided on both sides of the inner wall of the installation compartment. This power distribution cabinet with a line protection function is used by the coordination of components such as a disconnection mechanism, a fire extinguishing mechanism and a sealing mechanism; when a short circuit occurs in the line inside the installation compartment and a fire occurs, the high-temperature fuse breaks, and at this time, the wiring head at the lower part of the electrical switch body automatically disconnects the electrical connection state with the inside of the support plate, avoiding short circuits in other electrical switch bodies and burning electrical appliances, and reducing losses by automatically cutting off the power.

Description

Technical Field

[0001] The invention relates to the field of power distribution cabinets, in particular to a power distribution cabinet with a line protection function. Background Art

[0002] During the use of existing distribution cabinets, if an open fire occurs inside due to aging of wires or other reasons, an alarm device will be installed inside the conventional distribution cabinet. However, when the staff learns that there is a fire inside the distribution cabinet, it takes a certain amount of time to react, which will cause serious damage to the wires and equipment inside the distribution cabinet. Therefore, when a fire occurs, the distribution cabinet needs to protect the lines to prevent the fire from spreading.

[0003] The existing patent (Announcement No.: CN115579750A) discloses a power distribution cabinet based on line protection, including a cabinet body, wherein an emergency protection component is arranged inside the cabinet body, and the emergency protection component includes a mounting frame and a plastic filling bag. In the process of implementing the solution, the inventor found that the following problems in the prior art have not been well solved: 1. When a fire occurs in the circuit inside the power distribution cabinet, it is difficult for the power distribution cabinet to cut off the power supply to the circuit at the fire location in time to avoid short circuit and burning of electrical appliances; 2. The power distribution cabinet only uses fire extinguishing powder for fire extinguishing. It is difficult to quickly suppress the fire when the fire extinguishing powder falls from the top of the cabinet body, and the fire extinguishing efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to provide a power distribution cabinet with a line protection function to solve the problems raised in the above-mentioned background technology: 1. When a fire occurs inside some existing power distribution cabinets, it is difficult to cut off the power supply to the fire location; 2. When a fire occurs inside some existing power distribution cabinets, it is difficult to quickly suppress the fire only by fire extinguishing powder. In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: A power distribution cabinet with a line protection function, comprising a cabinet body, a door panel is hinged at the front end of the cabinet body, partitions are fixedly connected on both sides of the inner wall of the cabinet body, sealing strips matching with the partitions are fixedly connected to the side walls of the door panels, three support plates are fixedly connected between two of the partitions, the three support plates are equidistantly arranged, and the space between the two partitions is divided into three installation compartments by the three support plates;

[0005] Adjustment grooves are provided on both sides of the inner wall of the installation bin, and adjustment blocks are slidably connected inside the adjustment grooves. A pressing spring is movably connected between the bottom of the adjustment block and the inner bottom surface of the adjustment groove, and tooth plates are fixedly connected to the opposite sides of the two adjustment blocks.

[0006] A wire breaking mechanism is movably connected between the two adjusting blocks and the adjacent supporting plates, and a fire extinguishing mechanism cooperating with the wire breaking mechanism is movably connected between the tops of the two adjusting blocks and the inner walls of the adjacent installation bins;

[0007] A sealing mechanism is movably connected between the side wall of the tooth plate and the inner wall of the partition.

[0008] Preferably, the disconnection mechanism comprises a movable box, wherein two movable boxes are provided, and the two movable boxes are symmetrically fixedly connected to the two sides of the top of the support plate, a cross-shaped push rod is slidably connected inside the movable box, a compression spring is movably connected between the side wall of the cross-shaped push rod and the inner wall of the movable box, one end of the cross-shaped push rod passes through the movable box and is fixedly connected to a high-temperature fuse, and the opposite ends of the two high-temperature fuses are movably connected;

[0009] The top of the movable box is fixedly connected with a cushion block, the side wall of the cushion block is rotatably connected with a push bar matched with a cross-shaped top rod, a torsion spring is fixedly connected between the middle part of the push bar and the side wall of the cushion block, the lower part of the push bar extends to the inside of the movable box, and the upper part of the push bar is provided with a waist-shaped groove;

[0010] The upper part of the side wall of the cushion block is slidably connected with an insert block matched with the push strip, the side wall of the adjustment block is provided with a slot matched with the insert block, one end of the insert block is movably inserted into the interior of the adjacent slot, and the end of the insert block away from the slot is fixedly connected with an adjustment pin, and the adjustment pin is slidably connected to the interior of the adjacent waist-shaped groove;

[0011] The inner wall of the installation bin is fixedly connected with an electrical switch body, the bottom of the electrical switch body is fixedly connected with a terminal head, a groove is provided at the lower part of the terminal head, a mounting groove matched with the terminal head is provided at the top of the support plate, a short spring is fixedly connected to the inner bottom surface of the mounting groove, an arc-shaped push block is fixedly connected to the top of the short spring, and the bottom of the terminal head overlaps the top of the adjacent arc-shaped push block;

[0012] A transverse groove is provided inside the support plate, a conductive plate is slidably connected inside the transverse groove, a return spring is fixedly connected between the side wall of the conductive plate and the inner wall of the transverse groove, a spring rod matched with the mounting groove is fixedly connected to the side wall of the conductive plate, one end of the spring rod extends to the adjacent mounting groove and is fixedly connected to an arc-shaped conductive block, and the arc-shaped conductive block is inserted into the adjacent groove;

[0013] A recovery groove matching the transverse groove is provided inside the support plate, a cone block is slidably connected inside the recovery groove, a pressure block is fixedly connected to the side wall of the conductive plate, one end of the pressure block extends into the recovery groove and overlaps with the lower part of the cone block, a recovery spring is fixedly connected between the top of the cone block and the top surface of the recovery groove, a pull ring belt is fixedly connected to the middle position of the top of the cone block, and the upper part of the pull ring belt is movably sleeved on the surface of the adjacent high-temperature fuse.

[0014] Preferably, the surface of the high-temperature fuse is overlapped with the surface of the terminal head, and two high-temperature fuses at the same level are connected via a threaded connector.

[0015] Preferably, a through slot is provided on the top of the movable box at one side away from the cross-shaped push rod, the lower part of the push strip passes through the through slot and extends to the inside of the movable box, a rectangular slot is provided at the front end of the movable box, and a rectangular pull block matching the rectangular slot is fixedly connected to the middle part of the cross-shaped push rod;

[0016] A rotating shaft is fixedly connected to the middle of the push bar, and the push bar is rotatably connected to the side wall of the cushion block via the rotating shaft.

[0017] Preferably, the fire extinguishing mechanism includes a pull rope, which is fixedly connected to the top of the adjustment block, and the upper part of the inner wall of the installation chamber is symmetrically provided with slide grooves, and the insides of the two slide grooves are slidably connected with compressed air bags, and the two compressed air bags correspond to the two adjustment blocks respectively, and one end of the pull rope is fixedly connected to one end of the upper part of the adjacent compressed air bag;

[0018] An air inlet check valve is fixedly connected to the upper part of the side wall of the compressed air bag, an air outlet check valve is fixedly connected to the lower part of the side wall of the compressed air bag, an air extraction spring is fixedly connected between the two sides of the inner wall of the compressed air bag, and a transmission rope is fixedly connected to the bottom of the compressed air bag;

[0019] A powder tank is fixedly connected to the middle of the inner wall of the installation bin, a piston is slidably connected to the upper part of the inner wall of the powder tank, an extrusion spring is fixedly connected between the top of the piston and the inner top surface of the powder tank, one end of the two transmission ropes extends into the powder tank and is fixedly connected to the top of the piston, and a powder spraying head that cooperates with the wire breaking mechanism is symmetrically fixedly connected to the bottom of the powder tank.

[0020] Preferably, a wire ring is symmetrically fixedly connected to the upper part of the inner wall of the installation chamber, and the two pull ropes are slidably connected to the inside of the two wire rings respectively;

[0021] The tops of the two compression air bags at opposite ends are fixedly connected with pull blocks, and the two pull ropes are fixedly connected with the two pull blocks respectively.

[0022] Preferably, guide blocks are fixedly connected to both sides of the compression airbag, a guide groove is provided on the inner wall of the installation bin, a guide rod is fixedly connected between the two sides of the inner wall of the guide groove, and the guide block is slidably connected to the surface of the guide rod.

[0023] Preferably, the sealing mechanism comprises a transmission groove, wherein two transmission grooves are provided, and the two transmission grooves are respectively opened inside the two partitions, and a transmission rod is rotatably connected inside the transmission groove, and six circular gears are fixedly connected to the surface of the transmission rod at equal intervals, and every two circular gears are provided as a group, and the three groups of circular gears correspond to the three installation bins one by one;

[0024] The inner wall of the transmission groove is provided with three circular grooves at equal intervals, and the three circular grooves correspond to the three installation bins one by one. The inner wall of the circular groove is rotatably connected with a main bevel gear matched with a toothed plate, and the surface of the transmission rod is fixedly sleeved with three slave bevel gears at equal intervals, and the three slave bevel gears are respectively meshed with the side walls of the three main bevel gears;

[0025] The side wall of the partition is provided with six exhaust grooves, and every two exhaust grooves are set as a group, and the three groups of exhaust grooves correspond to the three installation bins one by one. The interior of the partition is provided with a sealing groove matched with the exhaust groove, and the interior of the sealing groove is slidably connected with a sealing plate;

[0026] A movable groove is provided at the upper and lower ends of the sealing groove, one end of the movable groove extends into the interior of the transmission groove, the two movable grooves correspond one to one with the two circular gears on the same side, a movable rack is slidably connected inside the movable groove, the surface of the movable rack is fixedly connected to the side walls of the two adjacent sealing plates, and one end of the movable rack extends into the transmission groove and meshes with the side wall of the adjacent circular gear.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] In the present invention, by using the adjusting block, the wire breaking mechanism, the support plate and other components in coordination, when a short circuit occurs in the circuit inside the installation compartment and a fire occurs, the high-temperature fuse breaks, and at this time, the terminal head at the lower part of the electrical switch body automatically disconnects the electrical connection with the inside of the support plate, thereby avoiding a short circuit at other electrical switch bodies and burning of electrical appliances, and effectively reducing losses by automatically cutting off power.

[0029] In the present invention, through the coordinated use of components such as the adjusting block, the tooth plate and the sealing mechanism, when the wire breaking mechanism is triggered, the adjusting block rises with the tooth plate, so that the tooth plate engages with the main bevel gear on the sealing mechanism. At this time, the sealing plate moves to seal the exhaust groove position on the side wall of the installation bin, thereby isolating different installation bins, preventing the fire from spreading, and improving safety performance.

[0030] In the present invention, through the coordinated use of components such as the adjusting block, the sealing mechanism and the fire extinguishing mechanism, when the sealing mechanism seals the installation bin, the compressed air bag on the fire extinguishing mechanism begins to expand and extract the air inside the installation bin in a sealed state, thereby reducing the oxygen content inside the installation bin and simultaneously generating a negative pressure inside the installation bin, so that the fire extinguishing powder inside the powder tank can be quickly sprayed out from the powder spraying head position for fire extinguishing. The fire extinguishing effect is effectively improved through the dual combination of reducing the oxygen content in the space and improving the powder spraying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front cross-sectional view of the cabinet of the present invention;

[0032] Figure 2 It is a front cross-sectional view of the position of the support plate and the partition plate of the present invention;

[0033] Figure 3 For the present invention Figure 2 A magnified view of the structure at center A;

[0034] Figure 4 For the present invention Figure 2 A magnified view of the structure at B in the middle;

[0035] Figure 5 For the present invention Figure 2 A magnified view of the structure at C in the middle;

[0036] Figure 6 For the present invention Figure 2 A magnified view of the structure at D in the middle;

[0037] Figure 7 It is a top cross-sectional view of the local position of the support plate and the transverse groove of the present invention;

[0038] Figure 8 It is a top cross-sectional view of the cabinet and the local position of the compressed air bag of the present invention;

[0039] Fig. 9 It is a front cross-sectional view of the powder tank and the local position of the piston of the present invention;

[0040] Fig.10 It is a side cross-sectional view of a local position of a partition plate and a sealing plate of the present invention;

[0041] Fig.11 It is a top view of the cabinet and door panel of the present invention;

[0042] Fig.12 It is a three-dimensional diagram of the transmission rod and the local position of the bevel gear of the present invention;

[0043] Fig.13 It is a three-dimensional diagram of the pressing block of the present invention.

[0044] In the figure: 1, cabinet; 2, door panel; 3, partition; 4, sealing strip; 5, support plate; 6, installation compartment; 7, adjustment slot; 8, adjustment block; 9, pressing spring; 10, tooth plate; 11, disconnection mechanism; 1101, movable box; 1102, cross-shaped push rod; 1103, compression spring; 1104, high-temperature fuse; 1105, cushion block; 1106, push strip; 1107, torsion spring; 1108, waist groove; 1109, plug block; 1110, slot; 1111, adjustment pin; 1112, electrical switch body; 1113, terminal; 1114, groove; 1115, installation slot; 1116, short spring; 1117, arc-shaped push block; 1119, horizontal groove; 1120, conductive plate; 1121, reset spring; 1122, spring rod; 1123, arc shaped conductive block; 1124, recovery groove; 1125, cone block; 1126, pressure block; 1127, recovery spring; 1128, pull ring belt; 12, fire extinguishing mechanism; 1201, pull rope; 1202, slide; 1203, compressed air bag; 1204, air inlet check valve; 1205, air outlet check valve; 1206, air extraction spring; 1207, transmission rope; 1208, powder tank; 12 09, piston; 1210, extrusion spring; 1211, powder spray head; 13, sealing mechanism; 1301, transmission groove; 1302, transmission rod; 1303, circular gear; 1304, circular groove; 1305, main bevel gear; 1306, slave bevel gear; 1307, exhaust groove; 1308, sealing groove; 1309, sealing plate; 1310, movable groove; 1311, movable rack. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figures 1 to 13 The present invention provides a technical solution: a power distribution cabinet with line protection function, including a cabinet 1, a door panel 2 is hinged at the front end of the cabinet 1, partitions 3 are fixedly connected to both sides of the inner wall of the cabinet 1, and sealing strips 4 matching with the partitions 3 are fixedly connected to the side walls of the door panel 2. Three support plates 5 are fixedly connected between the two partitions 3, and the three support plates 5 are equidistantly arranged. The space between the two partitions 3 is divided into three installation compartments 6 by the three support plates 5. It should be noted that: a sealing gasket is also provided on the frame at the front end of the cabinet 1. When the door panel 2 is closed, the space between the two partitions 3 and the inner wall of the cabinet 1 is sealed under the action of the sealing strip 4.

[0047] Adjustment slots 7 are provided on both sides of the inner wall of the installation bin 6, and adjustment blocks 8 are slidably connected inside the adjustment slots 7. A pressing spring 9 is movably connected between the bottom of the adjustment block 8 and the slot wall of the adjustment slot 7, and tooth plates 10 are fixedly connected to the opposite sides of the two adjustment blocks 8. It should be noted that an adjustment rod is fixedly connected inside the adjustment slot 7, the adjustment block 8 is slidably connected to the adjustment rod, and the pressing spring 9 is movably sleeved on the lower part of the adjustment rod.

[0048] A disconnection mechanism 11 is movably connected between the two adjustment blocks 8 and the adjacent support plates 5 , and a fire extinguishing mechanism 12 that cooperates with the disconnection mechanism 11 is movably connected between the tops of the two adjustment blocks 8 and the inner walls of the adjacent installation bins 6 .

[0049] A sealing mechanism 13 is movably connected between the side wall of the tooth plate 10 and the inner wall of the partition plate 3 .

[0050] In this embodiment, Figures 1 to 13 As shown, the wire breaking mechanism 11 includes a movable box 1101, and the movable box 1101 is set to two. The two movable boxes 1101 are symmetrically fixedly connected to the two sides of the top of the support plate 5. The interior of the movable box 1101 is slidably connected with a cross-shaped top rod 1102, and a compression spring 1103 is movably connected between the side wall of the cross-shaped top rod 1102 and the inner wall of the movable box 1101. One end of the cross-shaped top rod 1102 passes through the movable box 1101 and is fixedly connected with a high-temperature fuse 1104, and the opposite ends of the two high-temperature fuses 1104 are movably connected.

[0051] The top of the movable box 1101 is fixedly connected with a cushion block 1105, and the side wall of the cushion block 1105 is rotatably connected with a push bar 1106 that matches the cross-shaped push rod 1102. A torsion spring 1107 is fixedly connected between the middle of the push bar 1106 and the side wall of the cushion block 1105. The lower part of the push bar 1106 extends to the inside of the movable box 1101, and the upper part of the push bar 1106 is provided with a waist-shaped groove 1108. It should be noted that when the cross-shaped push rod 1102 releases the pressure on the lower part of the push bar 1106, the torsion spring 1107 can bring the push bar 1106 back to its original position.

[0052] The upper part of the side wall of the cushion block 1105 is slidably connected with an insert block 1109 matched with the push bar 1106, and the side wall of the adjustment block 8 is provided with a slot 1110 matched with the insert block 1109. One end of the insert block 1109 is movably inserted into the adjacent slot 1110, and the end of the insert block 1109 away from the slot 1110 is fixedly connected with an adjustment pin 1111, and the adjustment pin 1111 is slidably connected to the adjacent waist-shaped groove 1108. It should be noted that: a ball is fixedly connected to the inner bottom surface of the slot 1110, and the surface of the ball overlaps the surface of the insert block 1109. The setting of the ball can reduce the friction resistance of the movement of the insert block 1109; the top of the insert block 1109 and the bottom of the adjustment block 8 are both set as inclined surfaces, which can press and push the insert block 1109 to move when the adjustment block 8 moves downward, and then the insert block 1109 is reset and inserted into the slot 1110 to limit the adjustment block 8.

[0053] The inner wall of the installation chamber 6 is fixedly connected with the electrical switch body 1112, the bottom of the electrical switch body 1112 is fixedly connected with the terminal head 1113, the lower part of the terminal head 1113 is provided with a groove 1114, the top of the support plate 5 is provided with a mounting groove 1115 matched with the terminal head 1113, the inner bottom surface of the mounting groove 1115 is fixedly connected with a short spring 1116, the top of the short spring 1116 is fixedly connected with an arc-shaped push block 1117, and the bottom of the terminal head 1113 overlaps the top of the adjacent arc-shaped push block 1117. It should be noted that: the number of the mounting grooves 1115 is consistent with the number of the terminal heads 1113 of the electrical switch body 1112, so that each terminal head 1113 can be inserted into the corresponding mounting groove 1115 for electrical connection, the electrical switch body 1112 is a prior art, and will not be described in detail here; the terminal head 1113 is composed of an electrical connector and a wire, so that the electrical switch body 1112 can be electrically connected.

[0054] A transverse groove 1119 is provided inside the support plate 5, and a conductive plate 1120 is slidably connected inside the transverse groove 1119. A return spring 1121 is fixedly connected between the side wall of the conductive plate 1120 and the inner wall of the transverse groove 1119. A spring rod 1122 matching the mounting groove 1115 is fixedly connected to the side wall of the conductive plate 1120. One end of the spring rod 1122 extends into the adjacent mounting groove 1115 and is fixedly connected to an arc-shaped conductive block 1123. The arc-shaped conductive block 1123 is inserted into the adjacent groove 1114. It should be noted that: the top of the arc-shaped conductive block 1123 is set as an inclined surface. When the terminal head 1113 is inserted into the installation groove 1115, it is convenient for the arc-shaped conductive block 1123 to contract with the spring rod 1122 after being compressed, and then the spring rod 1122 is reset to allow the arc-shaped conductive block 1123 to be inserted into the groove 1114 at the lower part of the terminal head 1113, so that the terminal head 1113 can be stably energized; the transverse groove 1119 is set to penetrate the inner wall of the installation groove 1115 on the same side, and transverse grooves 1119 are opened on both sides of the support plate 5. The terminal head 1113 on the left side of the support plate 5 cooperates with the adjacent installation groove 1115 and is controlled by the conductive plate 1120 inside the left transverse groove 1119, and the terminal head 1113 on the right side of the support plate 5 cooperates with the adjacent installation groove 1115 and is controlled by the conductive plate 1120 inside the right transverse groove 1119.

[0055] A recovery groove 1124 matching the transverse groove 1119 is provided inside the support plate 5, and a cone block 1125 is slidably connected inside the recovery groove 1124. A pressure block 1126 is fixedly connected to the side wall of the conductive plate 1120, and one end of the pressure block 1126 extends into the recovery groove 1124 and overlaps with the lower part of the cone block 1125. A recovery spring 1127 is fixedly connected between the top of the cone block 1125 and the top surface of the recovery groove 1124, and a pull ring belt 1128 is fixedly connected to the middle position of the top of the cone block 1125, and the upper part of the pull ring belt 1128 is movably sleeved on the surface of the adjacent high-temperature fuse 1104. It should be noted that: when the high-temperature thermal fuse breaks, the recovery spring 1127 presses the cone block 1125 to move down and reset. At this time, the cone block 1125 presses on the top surface of the pressure block 1126, and the pressure block 1126 pushes the conductive plate 1120 to move inside the transverse groove 1119, so that the conductive plate 1120 moves with the arc-shaped conductive block 1123 through the spring rod 1122 to release the connection with the lower groove 1114 of the terminal head 1113, and the terminal head 1113 is automatically powered off; and the top of the pressure block 1126 is set as an inclined surface. When the cone block 1125 presses on the inclined surface position of the top of the pressure block 1126 during the downward movement, it is convenient for the pressure block 1126 to be pressed and move with the conductive plate 1120.

[0056] In this embodiment, Figures 1 to 13As shown, the surface of the high temperature fuse 1104 overlaps the surface of the terminal head 1113, and the two high temperature fuses 1104 at the same height are connected by a threaded connector. It should be noted that when the line on the terminal head 1113 short-circuits and catches fire, the high temperature fuse 1104 can break quickly in a high temperature environment. The high temperature fuse 1104 and the threaded connector are both prior art and will not be described in detail here. The threaded connector is used to conveniently connect the two high temperature fuses 1104 together, and the high temperature fuse 1104 is in a straightened state at this time.

[0057] In this embodiment, Figures 1 to 13 As shown, a through slot is provided on the top of the movable box 1101 away from the cross-shaped push rod 1102, and the lower part of the push strip 1106 passes through the through slot and extends to the inside of the movable box 1101. A rectangular slot is provided at the front end of the movable box 1101, and a rectangular pull block matching the rectangular slot is fixedly connected to the middle part of the cross-shaped push rod 1102. The rectangular pull block can slide through the rectangular slot and extend outward to facilitate manual control of the position of the cross-shaped push rod 1102. It should be noted that the position of the cross-shaped push rod 1102 can be adjusted by pulling the rectangular pull block outside the rectangular slot, so as to facilitate the installation of the high-temperature fuse 1104 on the cross-shaped push rod 1102; when the cross-shaped push rod 1102 is pressed and moved by the compression spring 1103, the cross-shaped push rod 1102 can press the push strip 1106 to swing.

[0058] A rotating shaft is fixedly connected to the middle of the push bar 1106 , and the push bar 1106 is rotatably connected to the side wall of the cushion block 1105 via the rotating shaft.

[0059] In this embodiment, Figures 1 to 13 As shown, the fire extinguishing mechanism 12 includes a pull rope 1201, which is fixedly connected to the top of the adjustment block 8. The upper part of the inner wall of the installation chamber 6 is symmetrically provided with a slide groove 1202. The insides of the two slide grooves 1202 are both slidably connected with compressed air bags 1203. The two compressed air bags 1203 correspond to the two adjustment blocks 8 one by one. One end of the pull rope 1201 is fixedly connected to one end of the adjacent compressed air bag 1203. It should be noted that the compressed air bag 1203 is made of high temperature resistant material, and the two pull ropes 1201 are respectively arranged at the end positions of the opposite sides of the two compressed air bags 1203. When the adjustment block 8 moves down inside the adjustment slot 7, the adjustment block 8 shrinks with the compressed air bag 1203 through the pull rope 1201.

[0060] An inlet check valve 1204 is fixedly connected to the upper part of the side wall of the compressed air bag 1203, an outlet check valve 1205 is fixedly connected to the lower part of the side wall of the compressed air bag 1203, an air extraction spring 1206 is fixedly connected between the two sides of the inner wall of the compressed air bag 1203, and a transmission rope 1207 is fixedly connected to the bottom of the compressed air bag 1203. It should be noted that when the compressed air bag 1203 is compressed, the outlet check valve 1205 is opened and the inlet check valve 1204 is closed, and when the compressed air bag 1203 is deployed, the outlet check valve 1205 is closed and the inlet check valve 1204 is opened.

[0061] A powder tank 1208 is fixedly connected to the middle of the inner wall of the mounting bin 6, a piston 1209 is slidably connected to the upper part of the inner wall of the powder tank 1208, an extrusion spring 1210 is fixedly connected between the top of the piston 1209 and the inner top surface of the powder tank 1208, one end of the two transmission ropes 1207 extend into the powder tank 1208 and are fixedly connected to the top of the piston 1209, and a powder spray head 1211 that cooperates with the wire breaking mechanism 11 is symmetrically fixedly connected to the bottom of the powder tank 1208. It should be noted that: when the fire extinguishing powder inside the powder spray head 1211 is sprayed out, the fire extinguishing powder can be sprayed on the terminal head 1113 of the disconnecting mechanism 11. Since it is close to the ignition point, the accuracy of fire extinguishing can be improved; a loading valve is installed on the upper part of the front end of the powder tank 1208, which is convenient for replenishing the powder tank 1208; when the installation bin 6 is in a sealed state, after the compressed air bag 1203 extracts the air inside the installation bin 6, the inside of the installation bin 6 is in a negative pressure state, which is convenient for the fire extinguishing powder to be quickly sprayed out from the powder spray head 1211.

[0062] The powder tank 1208 is filled with dry powder fire extinguishing agent, and since the dry powder fire extinguishing agent has a certain fluidity, it can be sprayed out after being compressed by the piston 1209. In order to prevent the dry powder fire extinguishing agent from flowing freely along the powder spraying head 1211, an electric valve is connected to the input port of the powder spraying head 1211, and the electric valve automatically opens after power failure.

[0063] In this embodiment, Figures 1 to 13 As shown, the upper part of the inner wall of the installation chamber 6 is symmetrically fixedly connected with wire loops, and two pull ropes 1201 are slidably connected to the inside of the two wire loops respectively.

[0064] The tops of the two compression air bags 1203 at opposite ends are fixedly connected with pull blocks, and the two pull ropes 1201 are fixedly connected to the two pull blocks respectively.

[0065] In this embodiment, Figures 1 to 13 As shown, guide blocks are fixedly connected to both sides of the compressed airbag 1203, a guide groove is provided on the inner wall of the installation chamber 6, a guide rod is fixedly connected between the two sides of the inner wall of the guide groove, and the guide block is slidably connected to the guide rod. It should be noted that the setting of the guide rod improves the stability of the compressed airbag 1203 during movement.

[0066] In this embodiment, Figures 1 to 13 As shown, the sealing mechanism 13 includes a transmission groove 1301, and there are two transmission grooves 1301. The two transmission grooves 1301 are respectively opened inside the two partitions 3. The inside of the transmission groove 1301 is rotatably connected with a transmission rod 1302. The surface of the transmission rod 1302 is equidistantly and fixedly connected with six circular gears 1303. Every two circular gears 1303 are set as a group, and three groups of circular gears 1303 correspond one by one to the three installation bins 6.

[0067] The inner wall of the transmission groove 1301 is provided with three circular grooves 1304 at equal intervals, and the three circular grooves 1304 correspond to the three installation bins 6 one by one. The inner wall of the circular groove 1304 is rotatably connected with a main bevel gear 1305 matched with the tooth plate 10, and the surface of the transmission rod 1302 is fixedly sleeved with three slave bevel gears 1306 at equal intervals, and the three slave bevel gears 1306 are respectively meshed with the three main bevel gears 1305. It should be noted that the side wall of the main bevel gear 1305 passes through the circular groove 1304 and extends to the inside of the adjacent adjustment groove 7. When the adjustment block 8 moves upward with the tooth plate 10, the side wall of the tooth plate 10 meshes with the side wall of the adjacent main bevel gear 1305, so that the main bevel gear 1305 meshes with the corresponding slave bevel gear 1306 for transmission. Furthermore, each main bevel gear 1305 is coaxially fixed with a driving cylindrical gear, and the driving cylindrical gear meshes with the tooth plate 10.

[0068] Six exhaust grooves 1307 are provided on the side wall of the partition 3, and every two exhaust grooves 1307 are set as a group. The three groups of exhaust grooves 1307 correspond one by one to the three installation bins 6. A sealing groove 1308 matching the exhaust groove 1307 is provided inside the partition 3, and a sealing plate 1309 is slidably connected inside the sealing groove 1308.

[0069] The upper and lower ends of the sealing groove 1308 are provided with a moving groove 1310, one end of which extends to the inside of the transmission groove 1301, and the two moving grooves 1310 correspond to the two circular gears 1303 on the same side. The inside of the moving groove 1310 is slidably connected with a moving rack 1311, and the surface of the moving rack 1311 is fixedly connected to the side walls of the two adjacent sealing plates 1309. One end of the moving rack 1311 extends to the transmission groove 1301 and meshes with the side walls of the adjacent circular gears 1303. It should be noted that: when the transmission rod 1302 rotates, the circular gear 1303 meshes with the moving rack 1311, so that the moving rack 1311 moves with the sealing plate 1309 in the sealing groove 1308, and at this time, the sealing plate 1309 enters the exhaust groove 1307 position to seal the exhaust groove 1307.

[0070] The use method and advantages of the present invention: The distribution cabinet with line protection function has the following working process:

[0071] like Figures 1 to 13 As shown, during the use of the power distribution cabinet, when a short circuit occurs at the terminal head 1113 at the lower part of the electrical switch body 1112 and a fire occurs, the high temperature fuse 1104 breaks in the high temperature environment, so that the high temperature fuse 1104 releases the pulling state on the pull ring 1128, and the recovery spring 1127 presses the cone block 1125 to move toward the inner bottom surface of the recovery groove 1124. During the downward movement of the cone block 1125, the cone block 1125 presses the pressing block 1126, so that the conductive plate 1120 translates inside the transverse groove 1119, so that the conductive plate 1120 passes through the spring. The spring rod 1122 moves the arc-shaped conductive block 1123 toward the inside of the horizontal groove 1119, and the arc-shaped conductive block 1123 is released from the insertion into the groove 1114 at the bottom of the terminal head 1113. Then the short spring 1116 moves the arc-shaped push block 1117 upward, and the arc-shaped push block 1117 pushes the terminal head 1113 out of the inside of the installation groove 1115. At this time, the terminal heads 1113 at the bottom of all the electrical switch bodies 1112 inside the installation compartment 6 are automatically released from the electrical connection state, effectively preventing short circuits at other terminal heads 1113 positions.

[0072] At the same time, when the high-temperature fuse 1104 breaks, the compression spring 1103 elastically recovers and moves with the cross-shaped push rod 1102 in the direction of the push bar 1106, so that the lower part of the push bar 1106 is compressed and deflected on the surface of the cushion block 1105. During the sliding process of the waist groove 1108 on the upper part of the push bar 1106 and the adjustment pin 1111 on the surface of the plug block 1109, the plug block 1109 is translated on the surface of the cushion block 1105 and is released from the plug-in connection with the side wall slot 1110 of the adjustment block 8. Then, under the elastic recovery of the pressing spring 9, the adjustment block 8 The toothed plate 10 moves upward along the adjustment groove 7. During the upward movement, the toothed plate 10 will mesh with the adjacent side wall of the main bevel gear 1305, causing the main bevel gear 1305 to rotate and rotate with the slave bevel gear 1306 and the transmission rod 1302. The transmission rod 1302 then rotates with the circular gear 1303 and meshes with the corresponding side wall of the movable rack 1311, causing the movable rack 1311 to move with the sealing plate 1309 toward the exhaust groove 1307. At this time, the exhaust groove 1307 on the side wall of the partition 3 is blocked by the sealing plate 1309, so that the interior of the installation bin 6 is in a sealed state.

[0073] Finally, as the adjustment block 8 moves upward, the air extraction spring 1206 inside the compressed airbag 1203 elastically recovers and unfolds the compressed airbag 1203. At this time, the air outlet check valve 1205 is closed and the air inlet check valve 1204 is opened to extract the air inside the installation bin 6 in a sealed state, thereby reducing the amount of oxygen inside the installation bin 6. At the same time, during the unfolding of the compressed airbag 1203, the transmission rope 1207 moves with the end of the compressed airbag 1203 and releases the pull on the piston 1209 inside the powder tank 1208, so that the extrusion spring 1210 elastically recovers and presses the piston 1209 downward, pushing out the fire extinguishing powder inside the powder tank 1208. Since the interior of the installation bin 6 is in a negative pressure state at this time, the fire extinguishing powder is quickly sprayed out from the powder spray head 1211 and covers the terminal head 1113 to extinguish the fire point. By reducing the oxygen content inside the installation bin 6 and the spraying of the fire extinguishing powder, the fire extinguishing effect is effectively improved.

[0074] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A power distribution cabinet with line protection function, comprising a cabinet body (1), Features: The front end of the cabinet (1) is hingedly connected to a door panel (2), both sides of the inner wall of the cabinet (1) are fixedly connected to partition panels (3), the side walls of the door panel (2) are fixedly connected to sealing strips (4) that match the partition panels (3), three support panels (5) are fixedly connected between two of the partition panels (3), the three support panels (5) are equidistantly arranged, and the space between the two partition panels (3) is divided into three installation compartments (6) by the three support panels (5); Adjustment grooves (7) are provided on both sides of the inner wall of the installation bin (6); an adjustment block (8) is slidably connected inside the adjustment groove (7); a pressing spring (9) is movably connected between the bottom of the adjustment block (8) and the inner bottom surface of the adjustment groove (7); and toothed plates (10) are fixedly connected to the opposite sides of the two adjustment blocks (8); A disconnection mechanism (11) is movably connected between the two adjustment blocks (8) and the adjacent support plates (5), and a fire extinguishing mechanism (12) that cooperates with the disconnection mechanism (11) is movably connected between the tops of the two adjustment blocks (8) and the inner walls of the adjacent installation bins (6); A sealing mechanism (13) is movably connected between the side wall of the tooth plate (10) and the inner wall of the partition plate (3); The disconnection mechanism (11) comprises a movable box (1101), wherein the movable box (1101) is provided in two pieces, and the two movable boxes (1101) are symmetrically fixedly connected to the two sides of the top of the support plate (5); a cross-shaped top rod (1102) is slidably connected inside the movable box (1101); a compression spring (1103) is movably connected between the side wall of the cross-shaped top rod (1102) and the inner wall of the movable box (1101); one end of the cross-shaped top rod (1102) passes through the movable box (1101) and is fixedly connected to a high-temperature fuse (1104); and opposite ends of the two high-temperature fuses (1104) are movably connected; The top of the movable box (1101) is fixedly connected to a cushion block (1105), the side wall of the cushion block (1105) is rotatably connected to a push bar (1106) that matches the cross-shaped push rod (1102), a torsion spring (1107) is fixedly connected between the middle part of the push bar (1106) and the side wall of the cushion block (1105), the lower part of the push bar (1106) extends to the inside of the movable box (1101), and the upper part of the push bar (1106) is provided with a waist-shaped groove (1108); The upper part of the side wall of the cushion block (1105) is slidably connected with an insert block (1109) that matches the push bar (1106); the side wall of the adjustment block (8) is provided with a slot (1110) that matches the insert block (1109); one end of the insert block (1109) is movably inserted into the interior of an adjacent slot (1110); one end of the insert block (1109) away from the slot (1110) is fixedly connected with an adjustment pin (1111); the adjustment pin (1111) is slidably connected to the interior of an adjacent waist-shaped groove (1108); The inner wall of the installation bin (6) is fixedly connected to an electrical switch body (1112), the bottom of the electrical switch body (1112) is fixedly connected to a terminal head (1113), a groove (1114) is provided at the bottom of the terminal head (1113), a mounting groove (1115) matching the terminal head (1113) is provided at the top of the support plate (5), a short spring (1116) is fixedly connected to the inner bottom surface of the mounting groove (1115), an arc-shaped push block (1117) is fixedly connected to the top of the short spring (1116), and the bottom of the terminal head (1113) overlaps the top of the adjacent arc-shaped push block (1117); A transverse groove (1119) is provided inside the support plate (5), a conductive plate (1120) is slidably connected inside the transverse groove (1119), a return spring (1121) is fixedly connected between the side wall of the conductive plate (1120) and the inner wall of the transverse groove (1119), a spring rod (1122) matching the mounting groove (1115) is fixedly connected to the side wall of the conductive plate (1120), one end of the spring rod (1122 extends into the adjacent mounting groove (1115) and is fixedly connected to an arc-shaped conductive block (1123), and the arc-shaped conductive block (1123) is inserted into the adjacent groove (1114); A recovery groove (1124) matching with the transverse groove (1119) is provided inside the support plate (5); a cone block (1125) is slidably connected inside the recovery groove (1124); a pressure block (1126) is fixedly connected to the side wall of the conductive plate (1120); one end of the pressure block (1126) extends into the recovery groove (1124) and overlaps with the lower part of the cone block (1125); a recovery spring (1127) is fixedly connected between the top of the cone block (1125) and the top surface of the recovery groove (1124); a pull ring belt (1128) is fixedly connected to the middle position of the top of the cone block (1125); the upper part of the pull ring belt (1128) is movably sleeved on the surface of the adjacent high-temperature fuse (1104).

2. A power distribution cabinet with line protection function according to claim 1, Features: The surface of the high-temperature fuse (1104) overlaps the surface of the terminal head (1113), and two high-temperature fuses (1104) at the same level are connected via a threaded connector.

3. A power distribution cabinet with line protection function according to claim 1, Features: A through slot is provided on a side of the top of the movable box (1101) away from the cross-shaped push rod (1102); the lower portion of the push strip (1106) passes through the through slot and extends into the interior of the movable box (1101); a rectangular slot is provided at the front end of the movable box (1101); a rectangular pull block matching the rectangular slot is fixedly connected to the middle portion of the cross-shaped push rod (1102); A rotating shaft is fixedly connected to the middle of the push bar (1106), and the push bar (1106) is rotatably connected to the side wall of the cushion block (1105) via the rotating shaft.

4. A power distribution cabinet with line protection function according to claim 1, Features: The fire extinguishing mechanism (12) comprises a pull rope (1201), the pull rope (1201) is fixedly connected to the top of the adjustment block (8), the upper part of the inner wall of the installation chamber (6) is symmetrically provided with slide grooves (1202), the insides of the two slide grooves (1202) are both slidably connected with compressed air bags (1203), the two compressed air bags (1203) correspond to the two adjustment blocks (8) respectively, and one end of the pull rope (1201) is fixedly connected to one end of the upper part of the adjacent compressed air bag (1203); An air intake check valve (1204) is fixedly connected to the upper portion of the side wall of the compressed air bag (1203), an air outlet check valve (1205) is fixedly connected to the lower portion of the side wall of the compressed air bag (1203), an air extraction spring (1206) is fixedly connected between two sides of the inner wall of the compressed air bag (1203), and a transmission rope (1207) is fixedly connected to the bottom of the compressed air bag (1203); A powder tank (1208) is fixedly connected to the middle of the inner wall of the installation bin (6); a piston (1209) is slidably connected to the upper part of the inner wall of the powder tank (1208); an extrusion spring (1210) is fixedly connected between the top of the piston (1209) and the inner top surface of the powder tank (1208); one end of the two transmission ropes (1207) extends into the powder tank (1208) and is fixedly connected to the top of the piston (1209); and a powder spray head (1211) that cooperates with the wire breaking mechanism (11) is symmetrically fixedly connected to the bottom of the powder tank (1208).

5. A power distribution cabinet with line protection function according to claim 4, Features: A wire ring is symmetrically fixedly connected to the upper part of the inner wall of the installation chamber (6), and the two pull ropes (1201) are respectively slidably connected to the inside of the two wire rings; The tops of the two compression air bags (1203) at opposite ends are fixedly connected to pull blocks, and the two pull ropes (1201) are fixedly connected to the two pull blocks respectively.

6. A power distribution cabinet with line protection function according to claim 4, Features: Guide blocks are fixedly connected to both sides of the compression airbag (1203), a guide groove is provided on the inner wall of the installation bin (6), a guide rod is fixedly connected between the two sides of the inner wall of the guide groove, and the guide block is slidably connected to the surface of the guide rod.

7. A power distribution cabinet with line protection function according to claim 1, Features: The sealing mechanism (13) comprises a transmission groove (1301), wherein the number of the transmission grooves (1301) is two, and the two transmission grooves (1301) are respectively opened inside the two partitions (3); a transmission rod (1302) is rotatably connected inside the transmission groove (1301), and six circular gears (1303) are fixedly connected to the surface of the transmission rod (1302) at equal intervals, and every two circular gears (1303) form a group, and the three groups of circular gears (1303) correspond one to one to the three installation bins (6); The inner wall of the transmission groove (1301) is provided with three circular grooves (1304) at equal intervals, the three circular grooves (1304) correspond one to one with the three mounting bins (6), the inner wall of the circular groove (1304) is rotatably connected with a main bevel gear (1305) matched with the toothed plate (10), and the surface of the transmission rod (1302) is fixedly sleeved with three slave bevel gears (1306) at equal intervals, and the three slave bevel gears (1306) are respectively meshed with the side walls of the three main bevel gears (1305); The side wall of the partition (3) is provided with six exhaust grooves (1307), two exhaust grooves (1307) are arranged as a group, and three groups of exhaust grooves (1307) correspond to three installation bins (6) one by one. The interior of the partition (3) is provided with a sealing groove (1308) matching with the exhaust groove (1307), and the interior of the sealing groove (1308) is slidably connected with a sealing plate (1309); A movable groove (1310) is provided at the upper and lower ends of the sealing groove (1308), one end of the movable groove (1310) extends into the interior of the transmission groove (1301), the two movable grooves (1310) correspond one to one with the two circular gears (1303) on the same side, a movable rack (1311) is slidably connected inside the movable groove (1310), the surface of the movable rack (1311) is fixedly connected to the side walls of the two adjacent sealing plates (1309), and one end of the movable rack (1311) extends into the transmission groove (1301) and meshes with the side wall of the adjacent circular gear (1303).

Images