An intelligent safety protection electric energy metering box

Abstract

The present invention belongs to the technical field of power system metering, and specifically relates to an intelligent safety protection electric energy metering box. It includes a back enclosure frame. At the bottom of one side surface of the back enclosure frame, a bottom panel is fixedly installed by bolts, and at the top of one side surface of the back enclosure frame, a top panel is fixedly installed by bolts. Through the heat insulation plate and the rubber surface frame, the air flow direction inside the box can be changed. The rubber surface frame can closely fit on the surfaces of each panel, effectively filling the gaps between the panels and preventing smoke and flames from leaking through the gaps. As the heat insulation plate gradually approaches the exhaust groove on one side of the bottom panel surface, it orderly drives the air flow inside the metering box, causing some hot air to minimize the entry of external air. Since continuous combustion of the flame requires sufficient oxygen, this sealing structure effectively blocks the supply of oxygen, causing the flame to gradually extinguish due to lack of oxygen. This design also effectively prevents the further spread of the fire and avoids greater damage to surrounding equipment and the environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of power system metering, and more specifically, it is an intelligent safety protection electric energy metering box. Background Art

[0002] With the continuous progress of power grid technology, the costs and construction costs of power supply, distribution, and power consumption equipment and facilities have also been continuously increasing, and the requirements for security against theft have also been rising accordingly. As a key component of the power system, the electric energy metering box plays an irreplaceable and important role in the field of power metering and management. It not only needs to accurately measure various parameters of electricity to provide accurate basis for power transactions, but also needs to provide data support for the operation analysis, load forecasting, and power grid planning of the power system.

[0003] A patent with the Chinese invention patent publication number CN110545642B discloses an electric energy meter with fire prevention and heat dissipation functions. The key points of its technical solution are: including a metering box main body and a fixing frame installed in the metering box main body and having a U-shaped cross-section structure. An installation card cover is connected to the fixing frame. Through holes are opened on both side surfaces of the metering box main body. When installing the equipment, the wire can first pass through the through hole, and then the fixed cover is covered. The inclined surface push rod pushes the clamping block and the adjusting block to move together, so that the power connection wire is clamped by the insulating rubber block on the clamping block. It separates the stacked wires. Even if the wire catches fire spontaneously, it will not ignite other wires. At the same time, the insulating rubber block can also limit the burning wire, thereby preventing the spread of fire. Then, the supporting semi-ring is pulled up so that the suspended power connection wire is pushed up. Even if the equipment is used for a long time, the connection between the suspended power connection wire and the electric meter will not easily become loose, thereby further reducing the risk of spontaneous combustion of the wire.

[0004] However, the above technology often has the following defects: This technology only addresses the problem of spontaneous combustion of wires and constructs a fire prevention barrier to a certain extent through separation and restriction means. However, the internal structure of the electric energy meter box is complex. In addition to wires, it also includes many key and flammable electrical components such as relays and capacitors. Due to the difficulty in effectively containing the ignition source and the relatively weak airtightness of the space inside the box, the fire will spread rapidly through air convection, spreading from one ignition point to multiple areas. At the same time, the high temperature generated by the combustion will further damage the insulation performance of other components, triggering a chain reaction and causing more components to catch fire.

[0005] Therefore, the present invention provides an intelligent safety protection electric energy metering box. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: An intelligent safety protection electric energy metering box described in the present invention includes a back enclosure frame. At the bottom of one side surface of the back enclosure frame, a bottom panel is fixedly installed by bolts. At the top of one side surface of the back enclosure frame, a top panel is fixedly installed by bolts. The bottom panel and the top panel are placed opposite to each other. A protection frame is fixedly installed on the front surface of the back enclosure frame. A support part is provided near the top of the back enclosure frame on the lower surface of the top panel. An arc-shaped groove is formed in the middle of the upper surface of the support part. Straight grooves are formed near the edge of the upper surface of the support part. At one edge of the lower surface of one side of the top panel, a hinge connecting plate is fixedly installed by bolts. A driving module is fixedly installed on the lower surface of the hinge connecting plate. The driving module includes a coupling rod penetrating and connected in the middle of the hinge connecting plate. One end of the coupling rod penetrating the hinge connecting plate is fixedly installed with a lining connecting rod. Circular teeth are provided at one edge of one end of the lining connecting rod. An abutting section is provided in the middle of one side of the lining connecting rod. An adsorption section is provided in the middle of the other side of the lining connecting rod. A gear is movably connected to the lower surface of the hinge connecting plate near one side of the lining connecting rod. The serrated part on the outer arc surface of the gear is meshed and connected with the circular teeth. An installation block is fixedly installed by bolts on one side of the lower surface of the hinge connecting plate. An installation opening is provided on one side surface of the installation block. A magnet is connected through the installation opening on one side of the installation block. A pivot shaft is provided at one diagonal of the hinge connecting plate. A torsion spring A is movably sleeved on the outer arc surface of the pivot shaft. One end of the torsion spring A is connected to the top end of the abutting section. An iron block is fixedly installed on one side surface of the adsorption section. The iron block is adsorbed and connected with the magnet.

[0008] As a further scheme of the present invention: A transmission component is movably connected to the outer arc surface of the coupling rod near the lining connecting rod. The transmission component includes a driving connecting rod movably connected to the outer arc surface of the coupling rod. One end of the driving connecting rod is provided with an arc end. One end face of the arc end is attached to the abutting section. On both sides of the edge of the upper surface of the driving connecting rod, protruding ends are provided. A first auxiliary rod is slidably connected to the upper surface of the driving connecting rod. A chute A is formed in the upper surface of the first auxiliary rod.

[0009] As a further scheme of the present invention: The inner arc surface of the chute A is movably clamped with the outer arc surface of the protruding end. A transverse support plate is fixedly installed by bolts at the bottom of the upper surface of the hinge connecting plate. A chute B is formed in the upper surface of the transverse support plate. A driven connecting rod is slidably clamped on one side of the inner arc surface of the chute B. The other side surface of the driven connecting rod away from the transverse support plate is movably connected with a second auxiliary rod through a rotating shaft.

[0010] As a further scheme of the present invention: One end face of the second auxiliary rod is movably connected to the chute A through a rotating shaft. One end of the first auxiliary rod away from the driving connecting rod is movably connected with a hinge member. A connecting part is provided on the upper surface of the hinge member. A bent part is provided on one side surface of the connecting part.

[0011] As a further solution of the present invention: at the bottom of one side surface of the bending part, there is an annular winding part, the inner arc surface of the annular winding part is connected through a shaft moving rod, one end of the shaft moving rod is connected through a rotating part, at the edge of one side surface of the rotating part, there is a docking part, and an installation hole is opened on one side surface of the docking part.

[0012] As a further solution of the present invention: a torsion spring B is sleeved on the outer arc surface of the shaft moving rod, one end of the torsion spring B is connected to the rotating part, the docking part is fixedly installed with a heat insulation plate through the installation hole on one side, a rubber surface frame is fixedly installed on one side surface of the heat insulation plate, and the surfaces of the rubber surface frame are all attached to the inner side wall of the back surrounding frame.

[0013] As a further solution of the present invention: a connecting curved rod is slidably clamped in the inner side wall of the chute B away from the driven connecting rod, a curved surface is provided on the upper surface of the connecting curved rod, the connecting curved rod is slidably connected to the chute B through the curved surface at the top, the bottom of the connecting curved rod is movably connected to a long connecting rod through a rotating shaft, and one end of the long connecting rod away from the connecting curved rod is movably connected to an adjusting connecting rod through a rotating shaft.

[0014] As a further solution of the present invention: an annular part is provided at the top of one side surface of the adjusting connecting rod, the adjusting connecting rod is connected to the shaft moving rod through the annular part at the top, the back surface of the adjusting connecting rod is fixedly installed on the top of the heat insulation plate and is in the same plane as the docking part, and a tension spring is fixedly installed between the adjusting connecting rod and the connecting curved rod.

[0015] As a further solution of the present invention: an exhaust groove is provided on one side of the upper surface of the bottom panel, a fixing component is fixedly installed in the middle of the upper surface of the bottom panel, the fixing component includes a supporting concave platform fixedly installed on the surface of the bottom panel, and a spherical clamping block is movably clamped on the inner arc surface of the supporting concave platform.

[0016] As a further solution of the present invention: a cylindrical end is provided at the bottom of the outer arc surface of the spherical clamping block, the outer arc surface of the cylindrical end is movably clamped to the inner wall of the supporting concave platform, an airbag is fixedly installed on the inner arc surface of the spherical clamping block, and a magnetorheological fluid is filled inside the airbag.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. Through the heat insulation board and the rubber surface frame, the air flow direction inside the box can be changed. The rubber surface frame can closely fit on the surfaces of each panel, effectively filling the gaps between the panels, preventing smoke and flames from leaking through the gaps. At the same time, as the heat insulation board gradually approaches the exhaust groove opened on one side of the bottom panel surface, it orderly drives the air flow inside the metering box, allowing some hot air and smoke to be discharged from the exhaust groove, minimizing the entry of external air to the greatest extent. Since the continuous combustion of the flame requires sufficient oxygen, this sealing structure effectively blocks the supply of oxygen, causing the flame to gradually go out due to lack of oxygen. Moreover, this design also effectively prevents the further spread of the fire and avoids greater damage to surrounding equipment and the environment;

[0019] 2. Through the heat insulation board and the transmission component, in the non-use state, it can be cleverly folded or retracted into a specific space, greatly saving the internal space of the metering box. This enables the metering box to accommodate more electrical components within a limited volume. In some places with strict space requirements, such as the power distribution rooms of high-rise buildings and small distribution boxes, etc., the retractable heat insulation board can meet the fire prevention requirements without occupying internal space;

[0020] 3. Through the magnetorheological fluid and the airbag, the magnetorheological fluid rapidly changes from the initial low-viscosity fluid state to a semi-solid state with a certain stiffness. This change enables the airbag to closely fit between the rubber surface frame and the inner wall of the box, further enhancing the sealing effect. At the same time, it also provides additional buffering and support force for the heat insulation board, not only improving the stability of the heat insulation board in a fire scenario but also having good adaptability. In the normal working state, the magnetorheological fluid maintains low viscosity to ensure that the heat insulation board can move flexibly, while in the event of a fire, the rapidly responsive magnetic field regulation mechanism can quickly lock the position of the heat insulation board and play the best fire prevention and isolation role. Brief Description of the Drawings

[0021] The following further describes the present invention with reference to the drawings.

[0022] Figure 1 is the overall structural schematic diagram of the metering box of the present invention;

[0023] Figure 2 is the structural schematic diagram of the transmission component inside the top panel of the present invention;

[0024] Figure 3 is the top view structural schematic diagram of the drive module of the present invention;

[0025] Figure 4 is the overall top view structural schematic diagram of the drive module and the transmission component of the present invention;

[0026] Figure 5 is the disassembled internal structural schematic diagram of the drive module of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the overall structure of the connecting curved rod in the present invention;

[0028] Figure 7 It is a schematic structural diagram of the heat insulation board in the present invention;

[0029] Figure 8 It is a schematic structural diagram of the overall front view of the metering box in the present invention;

[0030] Figure 9 It is a partial structural schematic diagram of the installation and fixing component in the present invention;

[0031] Figure 10 It is the present invention Figure 8 An enlarged structural schematic diagram at position A.

[0032] In the figure: 1. Back surrounding frame; 2. Bottom panel; 201. Exhaust groove; 3. Top panel; 31. Support part; 311. Arc groove; 312. Straight groove; 5. Protection frame; 6. Hinge connecting plate; 7. Driving module; 71. Coupling rod; 72. Lining connecting rod; 721. Circular tooth; 722. Abutting section; 723. Adsorbing section; 73. Gear; 8. Installation block; 801. Magnet; 9. Pivot shaft; 10. Torsion spring A; 11. Iron block; 12. Transmission component; 121. Active connecting rod; 1221. Protruding end; 122. Arc end; 123. First secondary rod; 1231. Slide groove A; 124. Driven connecting rod; 125. Second secondary rod; 126. Connecting curved rod; 127. Long connecting rod; 128. Adjusting connecting rod; 1281. Ring part; 13. Horizontal support plate; 131. Slide groove B; 14. Hinge part; 141. Connecting part; 142. Bending part; 143. Ring winding part; 15. Axial moving rod; 16. Rotating part; 161. Docking part; 17. Torsion spring B; 18. Heat insulation board; 181. Rubber surface frame; 19. Fixing component; 191. Supporting concave platform; 192. Spherical clamping block; 1921. Cylindrical end; 193. Airbag; 194. Magnetorheological fluid. Specific embodiments

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0034] Such as Figures 1 to 8As shown in the figure, the embodiment of the present invention includes a back enclosure frame 1. At the bottom of one side surface of the back enclosure frame 1, a bottom panel 2 is fixedly installed by bolts. At the top of one side surface of the back enclosure frame 1, a top panel 3 is fixedly installed by bolts. The bottom panel 2 and the top panel 3 are placed opposite to each other. A protective frame 5 is fixedly installed on the front surface of the back enclosure frame 1. A support portion 31 is provided on the lower surface of the top panel 3 near the top of the back enclosure frame 1. An arc-shaped groove 311 is formed in the middle of the upper surface of the support portion 31, and a straight groove 312 is formed near the edge of the upper surface of the support portion 31. A hinge connecting plate 6 is fixedly installed by bolts at one side edge of the lower surface of the top panel 3. A driving module 7 is fixedly installed on the lower surface of the hinge connecting plate 6. The driving module 7 includes a coupling rod 71 penetrating and connecting in the middle of the hinge connecting plate 6. One end of the coupling rod 71 penetrating the hinge connecting plate 6 is fixedly installed with a lining connecting rod 72. A circular tooth 721 is provided at the edge of one end of the lining connecting rod 72. An abutting section 722 is provided in the middle of one side of the lining connecting rod 72, and an adsorption section 723 is provided in the middle of the other side of the lining connecting rod 72. A gear 73 is movably connected to the lower surface of the hinge connecting plate 6 near one side of the lining connecting rod 72. The serrated part on the outer arc surface of the gear 73 is meshed and connected with the circular tooth 721. An installation block 8 is fixedly installed by bolts on one side of the lower surface of the hinge connecting plate 6. An installation opening is provided on one side surface of the installation block 8. A magnet 801 is connected through the installation opening on one side of the installation block 8. A pivot shaft 9 is provided at one diagonal of the hinge connecting plate 6. A torsion spring A 10 is movably sleeved on the outer arc surface of the pivot shaft 9. One end of the torsion spring A 10 is connected to the top end of the abutting section 722. An iron block 11 is fixedly installed on one side surface of the adsorption section 723. The iron block 11 is adsorbed and connected with the magnet 801.

[0035] The back enclosure frame 1 is integrally formed, seamlessly connecting the left and right panels with the back panel, which not only improves the structural strength. The top panel 3 is fixed on the top of the back enclosure frame 1. The side ears on both sides of the top panel 3 extend along the top surface of the back enclosure frame 1 and closely fit the back enclosure frame 1 to form the outer shell of the metering box, further enhancing the sealing and stability of the overall structure.

[0036] At the same time, on the bottom surface of the back enclosure frame 1, the bottom panel 2 is fixed in the same way, providing stable support for the entire structure from top and bottom. In the front side of the bottom panel 2 and the top panel 3, a protective frame 5 is installed. The protective frame 5 is made of high-strength materials, which can not only provide reliable physical protection for the interior of the equipment against external collisions and impacts, but also cooperate with the back enclosure frame 1, the top panel 3 and the bottom panel 2 to further improve the entire sealing structure.

[0037] A cavity structure is provided between the top panel 3 and the support portion 31. The surface of this cavity is designed with an arc-shaped groove 311 and a straight-shaped groove 312. The arc-shaped groove 311 extends longitudinally along the surface of the support portion 31, reserving a reasonable trajectory for subsequent movement. The straight-shaped groove 312 is provided at the lateral edge of the support portion 31 and cooperates with the arc-shaped groove 311. Inside each slot hole, the rotating member 16 and the connecting curved rod 126 are assembled by means of sliding clamping. When the metering box is in a normal working state, in the mounting block 8 on the lower surface of the hinge connecting plate 6, the built-in magnet 801 will magnetically adsorb the iron block 11 in the adsorption section 723 on one side surface of the coupling rod 71. Under the action of this magnetic force, the driving connecting rod 121 and the driven connecting rod 124 connected to the surface of the entire coupling rod 71 will maintain a state parallel to the transverse direction of the back panel on the back of the back enclosure frame 1. At the same time, the hinge member 14 connected to the driven connecting rod 124 will also naturally fit on the surface of the back panel, ensuring the compactness of the device during stable operation.

[0038] In addition, the device further controls the movement trajectory of the hinge member 14 through the mutual sliding of the long connecting rod 127 and the connecting curved rod 126. As the long connecting rod 127 slides smoothly, the hinge member 14 will move upward along the back of the back panel. During this process, the heat insulation plate 18 rotates smoothly upward with the hinge member 14 as the axis, starting from the initial state of fitting on the back panel and finally tightly fitting on the top panel 3. This not only effectively blocks heat transfer and improves the heat insulation performance when the metering box is working normally, but also does not affect the normal operation of each component.

[0039] Such as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, a transmission component 12 is movably connected to the outer arc surface of the coupling rod 71 near the surface of the lining connecting rod 72. The transmission component 12 includes a driving connecting rod 121 movably connected to the outer arc surface of the coupling rod 71. One end of the driving connecting rod 121 is provided with an arc end 122. One side end surface of the arc end 122 is in contact with the abutting section 722. On both sides of the upper surface edge of the driving connecting rod 121, there are protruding ends 1221. A first secondary rod 123 is slidably connected to the upper surface of the driving connecting rod 121. A chute A1231 is formed on the upper surface of the first secondary rod 123. The inner arc surface of the chute A1231 is movably clamped with the outer arc surface of the protruding end 1221. A transverse support plate 13 is fixedly installed at the bottom of the upper surface of the hinge connecting plate 6 by bolts. A chute B131 is formed on the upper surface of the transverse support plate 13. One side of the inner arc surface of the chute B131 is slidably clamped with a driven connecting rod 124. The surface of the driven connecting rod 124 away from the transverse support plate 13 is movably connected to a second secondary rod 125 by a rotating shaft. The bottom of one side end surface of the second secondary rod 125 is movably connected to the chute A1231 by a rotating shaft. One end of the first secondary rod 123 away from the driving connecting rod 121 is movably connected to a hinge member 14. A connecting portion 141 is provided on the upper surface of the hinge member 14. A bent portion 142 is provided on one side surface of the connecting portion 141. A circular winding portion 143 is provided at the bottom of one side surface of the bent portion 142. A shaft moving rod 15 is connected through the inner arc surface of the circular winding portion 143. One end of the shaft moving rod 15 is connected through a rotating member 16. A docking portion 161 is provided at the edge of one side surface of the rotating member 16. An installation hole is formed on one side surface of the docking portion 161.

[0040] When the metering box is invaded by high temperature or threatened by a fire, the temperature sensor in the box quickly enters the working state and monitors the real-time temperature in the box in all directions. Once it detects that the internal temperature exceeds the preset safety threshold, the intelligent control system immediately activates the response mechanism. The system will adjust the magnet 801 to change the iron block 11, which originally had opposite magnetic poles and attracted each other, into the same magnetic pole state. Under the combined action of the strong magnetic pole repulsive force and the tension accumulated by the torsion spring A10 compressed by the coupling rod 71, the coupling rod 71 quickly generates a displacement in the opposite direction of the back plate.

[0041] Meanwhile, the system controls the gear 73 to start rotating. The gear 73 meshes tightly with the circular teeth 721 on the surface of the coupling rod 71. Through the efficient transmission of the gear 73, the moving range of the coupling rod 71 is further expanded. When the coupling rod 71 moves, the entire transmission assembly 12 has a chain reaction. The active connecting rod 121 is pulled by the coupling rod 71, and the protruding end 1221 provided on one side of it immediately acts to control the first secondary rod 123, causing it to start from the initial horizontal position and move in an arc with the active connecting rod 121 as the center. The second secondary rod 125 connected in the chute A1231 on the surface of the first secondary rod 123 slides backward along the inner wall of the chute A1231 under the action of a strong traction force until it contacts the protruding end 1221 and then stops moving. At this time, the second secondary rod 125, the driven connecting rod 124, and the first secondary rod 123 form a stable triangular structure, and the driven connecting rod 124 always slides along the chute B131 on the horizontal support plate 13 until it reaches an appropriate distance.

[0042] During the above mechanical movement process, the hinge member 14 starts to disengage from the back plate. During the movement, the heat insulation plate 18 that was originally placed parallel gradually changes from a state parallel to the back plate to a state perpendicular to the back plate. This change is mainly based on two factors. Firstly, the heat insulation plate 18 is connected to the first secondary rod 123 by a shaft connection method, enabling the heat insulation plate 18 to rotate flexibly around the first secondary rod 123. Secondly, during the movement of the heat insulation plate 18, the adjusting connecting rod 128 connected to the top applies a downward thrust to the heat insulation plate 18 to ensure that the heat insulation plate 18 can smoothly change from a state attached to the back plate to a state perpendicular to the back plate.

[0043] Through planar movement, the heat insulation plate 18 can be perpendicular to the middle of the overall metering box. This measure can form a strong heat insulation barrier inside the metering box in a high-temperature environment, effectively blocking the transfer of heat and protecting the core electrical components inside the box from high-temperature damage.

[0044] Such as Figure 2 、 Figure 7 、 Figure 8 and Figure 9As shown, a torsion spring B17 is sleeved on the outer arc surface of the shaft moving rod 15. One end of the torsion spring B17 is connected to the rotating part 16. A heat insulation plate 18 is fixedly installed on the docking part 161 through the mounting hole on one side. A rubber surface frame 181 is fixedly installed on one side surface of the heat insulation plate 18. The surfaces of the rubber surface frame 181 are all in contact with the inner side wall of the back enclosure frame 1. A connecting curved rod 126 is slidably clamped in the inner side wall of the chute B131 away from the driven connecting rod 124. The upper surface of the connecting curved rod 126 is provided with a curved surface. The connecting curved rod 126 is slidably connected to the chute B131 through the curved surface at the top. The bottom of the connecting curved rod 126 is movably connected to a long connecting rod 127 through a rotating shaft. One end of the long connecting rod 127 away from the connecting curved rod 126 is movably connected to an adjusting connecting rod 128 through a rotating shaft. An annular part 1281 is provided at the top of one side surface of the adjusting connecting rod 128. The adjusting connecting rod 128 is connected to the shaft moving rod 15 through the annular part 1281 at the top. The back surface of the adjusting connecting rod 128 is fixedly installed on the top of the heat insulation plate 18 and is in the same plane as the docking part 161.

[0045] Once a fire breaks out suddenly inside the box, high temperature and thick smoke spread rapidly. At this time, the movement track of the heat insulation plate 18 can change the air flow direction inside the box. The originally disordered air flow, under the movement of the heat insulation plate 18, the smoke with sparks is pushed orderly from one end of the metering box to the other end. During the movement of the heat insulation plate 18, it will inevitably pass through the top of the bottom panel 2. A rubber surface frame 181 is installed on one side of the heat insulation plate 18. The rubber surface frame 181 can closely fit on the surfaces of each panel, effectively filling the gaps between the panels and preventing smoke and flames from leaking through the gaps. At the same time, as the heat insulation plate 18 gradually approaches the exhaust groove 201, the exhaust groove 201 opened on one side of the surface of the bottom panel 2 orderly drives the air flow inside the metering box, so that part of the hot air and smoke are discharged from the exhaust groove 201.

[0046] When the heat insulation plate 18 stands steadily in the middle of the metering box, the protection pattern inside the whole box changes. The rubber surface frame 181 tightly seals one side of the metering box. Combined with the integrated molding design of the back enclosure frame 1, a sealed environment is constructed inside the box, minimizing the entry of external air to the greatest extent. Since the continuous combustion of the flame requires sufficient oxygen, this sealed structure effectively blocks the supply of oxygen, causing the flame to gradually go out due to lack of oxygen. Moreover, this design effectively prevents the further spread of the fire and avoids greater damage to the surrounding equipment and environment.

[0047] Such as Figure 8 、 Figure 9 and Figure 10As shown, an exhaust groove 201 is provided on one side of the upper surface of the bottom panel 2, and a fixing component 19 is fixedly installed in the middle of the upper surface of the bottom panel 2. The fixing component 19 includes a supporting concave platform 191 fixedly installed on the surface of the bottom panel 2. A spherical clamping block 192 is movably clamped on the inner arc surface of the supporting concave platform 191. A cylindrical end 1921 is provided at the bottom of the outer arc surface of the spherical clamping block 192. The outer arc surface of the cylindrical end 1921 is movably clamped to the inner wall of the supporting concave platform 191. An airbag 193 is fixedly installed on the inner arc surface of the spherical clamping block 192, and a magnetorheological fluid 194 is filled inside the airbag 193.

[0048] To further stabilize the heat insulation board 18 in the middle section and ensure that it always maintains its established position under complex working conditions, the sealing and fixing structure of the heat insulation board 18 is optimized. An airbag 193 is wrapped inside the rubber surface frame 181 of the heat insulation board 18. The airbag 193 is fixed on the inner arc surface of the spherical clamping block 192. At the bottom of the outer arc surface of the spherical clamping block 192, a cylindrical end 1921 is configured. The cylindrical end 1921 is connected to the supporting concave platform 191 in a movable clamping manner. When the temperature inside the metering box rises sharply due to a fire, the cylindrical end 1921 will gradually expand after being heated based on its polystyrene material properties. As the temperature continues to rise, the cylindrical end 1921 keeps expanding until it is completely clamped to the inner arc surface of the supporting concave platform 191. At this time, the stability of the spherical clamping block 192 is improved, providing a reliable physical support for the heat insulation board 18.

[0049] Meanwhile, when the rubber surface frame 181 comes into contact with the airbag 193 during movement, since the magnetorheological fluid 194 is filled inside the airbag 193, under the action of an external magnetic field, the rheological properties of the magnetorheological fluid 194 will change significantly. Through a control system, the magnetic field intensity applied around the airbag 193 can be adjusted in real time, causing the magnetorheological fluid 194 to rapidly change from its initial low-viscosity fluid state to a semi-solid state with a certain stiffness. This transformation enables the airbag 193 to closely fit between the rubber surface frame 181 and the inner wall of the box, further enhancing the sealing effect and at the same time providing additional buffering and supporting forces for the heat insulation board 18.

[0050] This not only improves the stability of the heat insulation board 18 in a fire scenario but also has good adaptability. Under normal working conditions, the magnetorheological fluid 194 maintains a low viscosity to ensure that the heat insulation board 18 can move flexibly. When a fire occurs, the rapidly responsive magnetic field regulation mechanism can quickly lock the position of the heat insulation board 18 to play the best fire isolation role.

[0051] The above front, back, left, right, up, and down are all based on the Figure 1 description drawings of the specification. Taking the observer's perspective as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0052] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0053] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent safety protection electric energy metering box, characterized in that: The back frame (1) comprises a back frame (1), a bottom panel (2) is fixedly mounted on the bottom of one side surface of the back frame (1) by means of bolts, a top panel (3) is fixedly mounted on the top of one side surface of the back frame (1) by means of bolts, the bottom panel (2) and the top panel (3) are arranged opposite to each other, a protective frame (5) is fixedly mounted on the front of the back frame (1), a support portion (31) is provided on the lower surface of the top panel (3) near the top of the back frame (1), an arc-shaped groove (311) is provided in the middle of the upper surface of the support portion (31), a straight groove (312) is provided on the upper surface of the support portion (31) near the edge, a hinged connecting plate (6) is fixedly mounted on the edge of one side of the lower surface of the top panel (3) by means of bolts, and a driving module (7) is fixedly mounted on the lower surface of the hinged connecting plate (6); The driving module (7) comprises a coupling rod (71) penetrating and connected to the middle of the hinged connecting plate (6); a lining connecting rod (72) is fixedly mounted on one end of the coupling rod (71) penetrating the hinged connecting plate (6); a round tooth (721) is provided at the edge of one end of the lining connecting rod (72); a contact section (722) is provided in the middle of one side of the lining connecting rod (72); an adsorption section (723) is provided in the middle of the other side of the lining connecting rod (72); a gear (73) is movably connected to the side of the lower surface of the hinged connecting plate (6) close to the lining connecting rod (72); the outer arc surface serrations of the gear (73) are meshed and connected with the round tooth (721); A mounting block (8) is fixedly mounted on one side of the lower surface of the hinged connecting plate (6) by means of bolts, a mounting opening is provided on one side of the surface of the mounting block (8), a magnet (801) is connected to the mounting opening on one side of the mounting block (8), a pivot shaft (9) is provided at a diagonal position on one side of the hinged connecting plate (6), a torsion spring A (10) is movably sleeved on the outer arc surface of the pivot shaft (9), one end of the torsion spring A (10) is connected to the top of the abutting section (722), an iron block (11) is fixedly mounted on one side of the surface of the adsorption section (723), and the iron block (11) is adsorbed and connected to the magnet (801).

2. The intelligent safety protection electric energy metering box according to claim 1 is characterized in that: The outer arc surface of the coupling rod (71) is movably connected to a transmission assembly (12) near the surface of the lining connecting rod (72); The transmission assembly (12) comprises an active connecting rod (121) movably connected to the outer arc surface of the coupling rod (71); an arc end (122) is provided at one end of the active connecting rod (121); one end surface of the arc end (122) is in contact with the abutment section (722); both sides of the upper surface edge of the active connecting rod (121) are provided with protruding ends (1221); the upper surface of the active connecting rod (121) is slidably connected to a first auxiliary rod (123); and a sliding groove A (1231) is provided on the upper surface of the first auxiliary rod (123).

3. The intelligent safety protection electric energy metering box according to claim 2 is characterized in that: The inner arc surface of the slide groove A (1231) is movably engaged with the outer arc surface of the protruding end (1221); a transverse support plate (13) is fixedly mounted on the bottom of the upper surface of the hinged connecting plate (6) by bolts; a slide groove B (131) is provided on the upper surface of the transverse support plate (13); a driven connecting rod (124) is slidably engaged with one side of the inner arc surface of the slide groove B (131); and a side surface of the driven connecting rod (124) away from the transverse support plate (13) is movably connected to a second auxiliary rod (125) via a rotating shaft.

4. The intelligent safety protection electric energy metering box according to claim 3 is characterized in that: The bottom of one end surface of the second auxiliary rod (125) is movably connected to the slide groove A (1231) via a rotating shaft, and one end of the first auxiliary rod (123) away from the active connecting rod (121) is movably connected to a hinge member (14), and a connecting portion (141) is provided on the upper surface of the hinge member (14), and a bending portion (142) is provided on one side surface of the connecting portion (141).

5. The intelligent safety protection electric energy metering box according to claim 4 is characterized in that: An annular winding portion (143) is provided at the bottom of one side surface of the bending portion (142); an axial movable rod (15) is connected through the inner arc surface of the annular winding portion (143); one end of the axial movable rod (15) is connected through a rotating member (16); a docking portion (161) is provided at the edge of one side surface of the rotating member (16); and a mounting hole is provided on one side surface of the docking portion (161).

6. The intelligent safety protection electric energy metering box according to claim 5 is characterized in that: A torsion spring B (17) is sleeved on the outer arc surface of the axial movable rod (15), one end of the torsion spring B (17) is connected to the rotating member (16), a heat insulation board (18) is fixedly mounted on the docking portion (161) through a mounting hole on one side, a rubber surface frame (181) is fixedly mounted on one side surface of the heat insulation board (18), and the surface of the rubber surface frame (181) is in contact with the inner side wall of the back frame (1).

7. The intelligent safety protection electric energy metering box according to claim 6 is characterized in that: A connecting bent rod (126) is slidably engaged in the inner side wall of the slide groove B (131) away from the driven connecting rod (124); the upper surface of the connecting bent rod (126) is provided with a curved surface; the connecting bent rod (126) is slidably connected to the slide groove B (131) via the curved surface at the top; the bottom of the connecting bent rod (126) is movably connected to a long connecting rod (127) via a rotating shaft; and one end of the long connecting rod (127) away from the connecting bent rod (126) is movably connected to an adjusting connecting rod (128) via a rotating shaft.

8. The intelligent safety protection electric energy metering box according to claim 7 is characterized in that: A ring-shaped portion (1281) is provided at the top of one side surface of the adjusting link (128); the adjusting link (128) is connected to the axial movable rod (15) via the ring-shaped portion (1281) at the top; the back side of the adjusting link (128) is fixedly mounted on the top of the heat insulation board (18) and is in the same plane as the docking portion (161); and a tension spring is fixedly mounted between the adjusting link (128) and the connecting bent rod (126).

9. The intelligent safety protection electric energy metering box according to claim 1 is characterized in that: An exhaust groove (201) is provided on one side of the upper surface of the bottom panel (2), and a fixing assembly (19) is fixedly mounted in the middle of the upper surface of the bottom panel (2). The fixing assembly (19) comprises a supporting concave platform (191) fixedly mounted on the surface of the bottom panel (2), and a spherical clamping block (192) is movably engaged with the inner arc surface of the supporting concave platform (191).

10. The intelligent safety protection electric energy metering box according to claim 9 is characterized in that: The bottom of the outer arc surface of the spherical clamping block (192) is provided with a cylindrical end (1921), the outer arc surface of the cylindrical end (1921) is movably clamped to the inner wall of the supporting concave platform (191), and the inner arc surface of the spherical clamping block (192) is fixedly mounted with an air bag (193), and the interior of the air bag (193) is filled with magnetorheological fluid (194).

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