Intelligent safety protection electric energy metering box

Abstract

The invention belongs to the technical field of power system metering, and particularly relates to an intelligent safety protection electric energy metering box which comprises a back enclosure frame, a bottom panel is fixedly installed at the bottom of the surface of one side of the back enclosure frame through bolts, and a top panel is fixedly installed at the top of the surface of one side of the back enclosure frame through bolts. The rubber face frame can be tightly attached to the surface of each face plate, gaps between the face plates are effectively filled, and smoke and flames are prevented from leaking from the gaps. An exhaust groove formed in one side of the surface of the bottom panel gradually approaches to the exhaust groove along with the heat insulation plate to orderly drive air in the metering box to flow, so that part of hot air reduces entering of external air to the maximum extent; sufficient oxygen is needed due to continuous combustion of flame, and supply of oxygen is effectively blocked through a sealing structure; by means of the design, further spreading of the fire disaster is effectively prevented, and larger damage to peripheral equipment and the environment is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of power system metering, in particular to an intelligent safety protection electric energy metering box. Background Art

[0002] With the continuous advancement of power grid technology, the cost and price of power supply, distribution and consumption equipment and facilities are also increasing, and the requirements for safety and anti-theft are also increasing. As a key component of the power system, the power meter box plays an irreplaceable and important role in the field of power metering and management. It not only accurately measures various parameters of electricity to provide an accurate basis for power trading, but also provides data support for power system operation analysis, load forecasting and power grid planning.

[0003] A Chinese invention patent publication number CN110545642B discloses an electric energy meter with fireproof and heat dissipation functions. The key points of its technical solution are: it includes a meter box main body and a fixing frame installed in the meter box main body and having a U-shaped cross-section. A mounting card cover is connected to the fixing frame. Both side surfaces of the meter box main body are provided with through-hole grooves. The device is provided with a mounting card cover. When installing the device, the wire can be passed through the through-hole groove first, and then the fixed cover is covered, so that the inclined push rod pushes the clamping block and the adjustment block to move together, so that the power connection wire is clamped by the insulating rubber block on the clamping block, which separates the stacked wires. Even if the wires spontaneously combust, other wires will not be ignited. At the same time, the insulating rubber block can also limit the burning wires, thereby preventing the spread of fire. After that, the supporting semi-ring is pulled up to push up the suspended power connection wire. Even if the equipment is used for a long time, the suspended power connection wire and the meter will not be easily loosened, thereby further reducing the spontaneous combustion of the wire.

[0004] However, the above technology often has the following defects: this technology only targets the problem of spontaneous combustion of wires, and through separation and restriction means, it constructs a fire barrier to a certain extent. However, the internal structure of the electricity meter box is complex. In addition to the wires, it also includes many key and flammable electrical components such as relays and capacitors. Since it is difficult to effectively contain the source of fire, the sealing of the space inside the box is relatively weak. The fire will spread rapidly with the help of air convection, spreading from one fire 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, causing more components to catch fire.

[0005] To this end, 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, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the intelligent safety protection electric energy meter box described in the present invention comprises a back frame, a bottom panel is fixedly installed on the bottom of one side surface of the back frame by bolts, a top panel is fixedly installed on the top of one side surface of the back frame by bolts, the bottom panel and the top panel are placed opposite to each other, a protection frame is fixedly installed on the front of the back frame, a support portion is provided on the lower surface of the top panel near the top of the back frame, an arc groove is provided in the middle of the upper surface of the support portion, a straight groove is provided on the upper surface of the support portion near the edge, a hinged connecting plate is fixedly installed on the edge of one side of the lower surface of the top panel by bolts, a driving module is fixedly installed on the lower surface of the hinged connecting plate, and the driving module comprises a coupling rod penetrating and connected to the middle of the hinged connecting plate, The coupling rod passes through one end of the hinged connecting plate and is fixedly installed with a lining connecting rod. A round tooth is provided at the edge of one end of the lining connecting rod, an abutment section is provided in the middle of one side of the lining connecting rod, and an adsorption section is provided in the middle of the other side of the lining connecting rod. A gear is movably connected to the side of the lower surface of the hinged connecting plate close to the lining connecting rod, and the serrations on the outer arc surface of the gear are meshed with the round teeth. A mounting block is fixedly installed with bolts on one side of the lower surface of the hinged connecting plate, and a mounting port is provided on one side of the mounting block. A magnet is connected to the mounting port on one side of the mounting block, and a pivot shaft is provided at the diagonal side of one side of the hinged connecting plate. A torsion spring A is movably sleeved on the outer arc surface of the pivot shaft, and one end of the torsion spring A is connected to the top of the abutment section, and an iron block is fixedly installed on the surface of one side of the adsorption section, and the iron block is adsorbed and connected to the magnet.

[0008] As a further solution of the present invention: the outer arc surface of the coupling rod is movably connected to the surface of the lining connecting rod with a transmission assembly, and the transmission assembly includes an active connecting rod movably connected to the outer arc surface of the coupling rod, and one end of the active connecting rod is provided with an arc end, and one side end surface of the arc end is in contact with the abutment section, and both sides of the upper surface edge of the active connecting rod are provided with protruding ends, and the upper surface of the active connecting rod is slidably connected to the first sub-rod, and the upper surface of the first sub-rod is provided with a slide groove A.

[0009] As a further solution of the present invention: the inner arc surface of the slide groove A is movably engaged with the outer arc surface of the protruding end, a transverse support plate is fixedly installed on the bottom of the upper surface of the hinged connecting plate by bolts, a slide groove B is opened on the upper surface of the transverse support plate, a driven connecting rod is slidably engaged with one side of the inner arc surface of the slide groove B, and the side surface of the driven connecting rod away from the transverse support plate is movably connected to the second sub-rod through a rotating shaft.

[0010] As a further solution of the present invention: the bottom of one side end surface of the second sub-rod is movably connected in the slide groove A through a rotating shaft, and the end of the first sub-rod away from the active connecting rod is movably connected to a hinge part, the upper surface of the hinge part is provided with a connecting part, and the one side surface of the connecting part is provided with a bending part.

[0011] As a further solution of the present invention: an annular winding portion is provided at the bottom of one side surface of the bending portion, an axial movable rod is penetrated and connected to the inner arc surface of the annular winding portion, a rotating part is penetrated and connected to one end of the axial movable rod, a docking portion is provided at the edge of one side surface of the rotating part, and a mounting hole is opened on one side surface of the docking portion.

[0012] As a further solution of the present invention: a torsion spring B is sleeved on the outer arc surface of the axial moving rod, one end of the torsion spring B is connected to the rotating part, the docking portion is fixedly installed with a heat insulation board through a mounting hole on one side, a rubber surface frame is fixedly installed on one side surface of the heat insulation board, and the surface of the rubber surface frame is in contact with the inner wall of the back frame.

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

[0014] As a further solution of the present invention: an annular portion is provided on the top of one side surface of the adjusting connecting rod, the adjusting connecting rod is connected to the axial moving rod through the annular portion on the top, the back side of the adjusting connecting rod is fixedly installed on the top of the heat insulation board and is in the same plane as the docking portion, and a tension spring is fixedly installed between the adjusting connecting rod and the connecting bent 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, and a fixing component is fixedly installed in the middle of the upper surface of the bottom panel. The fixing component includes a supporting recess fixedly installed on the surface of the bottom panel, and a spherical block is movably connected to the inner arc surface of the supporting recess.

[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, and an airbag is fixedly installed on the inner arc surface of the spherical clamping block, and the interior of the airbag is filled with magnetorheological fluid.

[0017] The beneficial effects of the present invention are as follows: 1. The heat insulation board and the rubber face frame can change the direction of the airflow in the box. The rubber face frame can fit tightly on the surface of each panel, effectively filling the gap between the panels to prevent smoke and flames from leaking from the gap. At the same time, the exhaust slot opened on one side of the bottom panel surface gradually approaches the exhaust slot as the heat insulation board gradually approaches the exhaust slot, driving the air flow inside the metering box in an orderly manner, so that part of the hot air and smoke are discharged from the exhaust slot, minimizing the entry of external air. Since the 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. Not only that, this design also effectively prevents the further spread of the fire and avoids causing greater damage to surrounding equipment and the environment; 2. When not in use, the heat insulation board and the transmission assembly can be cleverly folded or stored in a specific space, which greatly saves the internal space of the meter box. This allows the meter box to accommodate more electrical components within a limited volume. Some places with strict space requirements, such as the distribution room of high-rise buildings and small distribution boxes, can store heat insulation boards to meet fire protection requirements without occupying internal space; 3. Through the magnetorheological fluid and the airbag, the magnetorheological fluid is rapidly transformed from the initial low-viscosity fluid state to a semi-solid state with a certain rigidity. This transformation enables the airbag to fit tightly between the rubber face frame and the inner wall of the box, further enhancing the sealing effect. At the same time, it also provides additional cushioning and support for the insulation board, which not only improves the stability of the insulation board in fire scenarios, but also has good adaptability. Under normal working conditions, the magnetorheological fluid maintains low viscosity to ensure that the insulation board can move flexibly. When a fire occurs, the rapid response magnetic field control mechanism can quickly lock the position of the insulation board to play the best fire isolation role. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the metering box of the present invention; Figure 2 It is a schematic diagram of the structure of the transmission assembly in the top panel of the present invention; Figure 3 is a schematic diagram of the top view of the driving module in the present invention; Figure 4 It is a schematic diagram of the overall top view of the drive module and the transmission assembly in the present invention; Figure 5 It is a schematic diagram of the disassembled internal structure of the drive module in the present invention; Figure 6 It is a schematic diagram of the overall structural structure of the connecting bent rod in the present invention; Figure 7 It is a schematic diagram of the structure of the heat insulation board in the present invention; Figure 8 This is a schematic diagram of the structure of the meter box in the present invention as a whole when viewed from the top; Fig. 9 It is a partial structural schematic diagram of the installation and fixing assembly in the present invention; Fig.10 The present invention Figure 8 Schematic diagram of the structure enlarged at point A in the middle.

[0020] In the figure: 1, back frame; 2, bottom panel; 201, exhaust groove; 3, top panel; 31, support part; 311, arc groove; 312, straight groove; 5, protection frame; 6, hinged connecting plate; 7, drive module; 71, coupling rod; 72, lining connecting rod; 721, round teeth; 722, abutment section; 723, adsorption section; 73, gear; 8, mounting block; 801, magnet; 9, pivot shaft; 10, torsion spring A; 11, iron block; 12, transmission assembly; 121, active connecting rod; 1221, protruding end; 122, arc end; 123, first auxiliary rod; 1231, slide groove A ; 124, driven connecting rod; 125, second auxiliary rod; 126, connecting bent rod; 127, long connecting rod; 128, adjusting connecting rod; 1281, annular portion; 13, transverse support plate; 131, slide groove B; 14, hinge member; 141, connecting portion; 142, bending portion; 143, annular winding portion; 15, axial moving rod; 16, rotating member; 161, docking portion; 17, torsion spring B; 18, heat insulation board; 181, rubber face frame; 19, fixing assembly; 191, supporting recess; 192, spherical block; 1921, cylindrical end; 193, airbag; 194, magnetorheological fluid. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 8As shown, the embodiment of the present invention includes a back frame 1, a bottom panel 2 is fixedly installed on the bottom of one side surface of the back frame 1 by bolts, a top panel 3 is fixedly installed on the top of one side surface of the back frame 1 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 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 groove 311 is provided in the middle of the upper surface of the support portion 31, and 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 installed on the edge of one side of the lower surface of the top panel 3 by bolts, a driving module 7 is fixedly installed on the lower surface of the hinged connecting plate 6, and the driving module 7 includes a coupling rod 71 penetrating and connected to the middle of the hinged connecting plate 6, and the coupling rod 71 passes through one end of the hinged connecting plate 6 and is fixedly installed with a lining connecting rod 7 2. 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, 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 side of the lower surface of the hinged connecting plate 6 close to the lining connecting rod 72, and the serrations on the outer arc surface of the gear 73 are meshed with the round tooth 721. A mounting block 8 is fixedly installed on one side of the lower surface of the hinged connecting plate 6 by bolts, and a mounting port is provided on one side of the mounting block 8. A magnet 801 is connected to the mounting port on one side of the mounting block 8. A pivot shaft 9 is provided at the diagonal portion of one side of the hinged connecting plate 6. A torsion spring A10 is movably sleeved on the outer arc surface of the pivot shaft 9, and one end of the torsion spring A10 is connected to the top of the contact section 722. An iron block 11 is fixedly installed on the surface of one side of the adsorption section 723, and the iron block 11 is adsorbed and connected to the magnet 801.

[0023] The back frame 1 is formed in an integrated manner, with the left and right panels seamlessly connected to the back panel, which not only improves the structural strength, but also fixes a top panel 3 on the top of the back frame 1. Side ears on both sides of the top panel 3 extend along the top surface of the back frame 1 and fit tightly to the back frame 1 to form the outer shell of the metering box, further enhancing the sealing and stability of the overall structure.

[0024] At the same time, on the bottom surface of the back frame 1, the bottom panel 2 is fixed in the same way to provide stable support for the entire structure from the upper and lower directions. On 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 material and can not only provide reliable physical protection for the interior of the equipment to resist external collisions and impacts, but also cooperate with the back frame 1, the top panel 3 and the bottom panel 2 to further improve the entire sealing structure.

[0025] The cam 312 is provided with a plurality of grooves 311 and 312 on the surface of the plurality of support members 31. The grooves 311 are provided at the plurality of support members 31 and 312 on the surface of the plurality of support members 31. The grooves 311 are provided at the plurality of support members 31 and 312 on the surface of the plurality of support members 31. The grooves 311 are provided at the plurality of support members 31 and 312 on the surface of the plurality of support members 31.

[0026] In addition, the device further controls the movement trajectory of the hinge 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 14 will move upward along the back of the back panel. In this process, the heat insulation board 18 takes the hinge 14 as the axis, and rotates upward smoothly from the initial state of being attached to the back panel, and finally fits tightly on the top panel 3. It not only effectively blocks heat transfer and improves the thermal insulation performance when the metering box is working normally, but also does not affect the normal operation of each component.

[0027] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the outer arc surface of the coupling rod 71 is movably connected to the surface of the lining connecting rod 72 with a transmission assembly 12, and the transmission assembly 12 includes an active connecting rod 121 movably connected to the outer arc surface of the coupling rod 71, and an arc end 122 is provided at one end of the active connecting rod 121, and one side end surface of the arc end 122 is in contact with the abutment section 722, and both sides of the upper surface edge of the active connecting rod 121 are provided with protruding ends 1221, and the upper surface of the active connecting rod 121 is slidably connected to the first auxiliary rod 123, and the upper surface of the first auxiliary rod 123 is provided with a slide groove A1231, and the inner arc surface of the slide groove A1231 is movably engaged with the outer arc surface of the protruding end 1221, and the bottom of the upper surface of the hinged connecting plate 6 is fixed with a transverse support plate 13 by bolts, and the upper surface of the transverse support plate 13 is provided with a slide groove B131, and the slide groove B131 A driven connecting rod 124 is slidably connected to one side of the inner arc surface, and a side surface of the driven connecting rod 124 away from the horizontal support plate 13 is movably connected to the second sub-rod 125 through a rotating shaft, and the bottom of one side end surface of the second sub-rod 125 is movably connected to the slide groove A1231 through a rotating shaft, and one end of the first sub-rod 123 away from the active connecting rod 121 is movably connected to the 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, and an annular winding portion 143 is provided on the bottom of one side surface of the bending portion 142, and an axial moving rod 15 is penetrated and connected to the inner arc surface of the annular winding portion 143, and one end of the axial moving rod 15 is penetrated and connected to the rotating member 16, and a docking portion 161 is provided at the edge of one side surface of the rotating member 16, and a mounting hole is opened on one side surface of the docking portion 161.

[0028] When the metering box is attacked by high temperature or threatened by fire, the temperature sensor in the box quickly enters the working state and conducts a full range of monitoring of the real-time temperature in the box. 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 transform the iron block 11, which originally has different magnetic poles and attracts each other, into a state of having the same magnetic poles. Under the combined effect of the strong magnetic pole repulsion force and the accumulated tension of the torsion spring A10 compressed by the coupling rod 71, the coupling rod 71 quickly moves in the opposite direction of the back plate.

[0029] At the same time, the system controls the gear 73 to start rotating, and the gear 73 is tightly meshed with the scalloped 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, a chain reaction occurs in the entire transmission assembly 12. The active link 121 is pulled by the coupling rod 71, and the protruding end 1221 set on one side thereof immediately controls the first sub-rod 123 to make it start from the lateral initial position and move in an arc with the active link 121 as the center. The second sub-rod 125 connected to the slide groove A1231 on the surface of the first sub-rod 123 slides backward along the inner wall of the slide groove A1231 under the action of strong traction until it contacts the protruding end 1221 and stops moving. At this time, the second sub-rod 125, the driven link 124 and the first sub-rod 123 form a stable triangular structure, and the driven link 124 always slides along the slide groove B131 on the lateral support plate 13 until it reaches a suitable distance.

[0030] During the above-mentioned mechanical movement, the hinge 14 begins to separate from the back panel, and the insulation board 18, which was originally placed in parallel, gradually changes from being parallel to the back panel to being perpendicular to the back panel during the movement. This change is mainly based on two factors. First, the insulation board 18 and the first sub-rod 123 are connected by an axis, so that the insulation board 18 can be flexibly rotated around the first sub-rod 123. Second, during the movement of the insulation board 18, the adjustment link 128 connected at the top will apply a downward thrust to the insulation board 18 to ensure that the insulation board 18 can smoothly change from being attached to the back panel to being perpendicular to the back panel.

[0031] By moving in a plane, the heat insulation board 18 can be vertically positioned in the middle of the meter box. This measure can form a solid heat insulation barrier inside the meter box in a high temperature environment, effectively blocking the transfer of heat and protecting the core electrical components in the box from high temperature damage.

[0032] like Figure 2 , Figure 7 , Figure 8 and Fig. 9As shown, the outer arc surface of the shaft moving rod 15 is sleeved with a torsion spring B17, one end of the torsion spring B17 is connected to the rotating member 16, the docking portion 161 is fixedly mounted with a heat insulation board 18 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 wall of the back frame 1, and a connecting curved rod 126 is slidably connected in the inner wall of the side of the slide groove B131 away from the driven connecting rod 124, and the upper surface of the connecting curved rod 126 is provided with a curved surface, and the connecting curved rod 126 is fixedly mounted with a rubber surface frame 181 on one side of the mounting hole. The curved surface at the top is slidably connected to the slide groove B131, and the bottom of the connecting bent rod 126 is movably connected to the long connecting rod 127 through a rotating shaft. The end of the long connecting rod 127 away from the connecting bent rod 126 is movably connected to the adjusting connecting rod 128 through a rotating shaft. An annular portion 1281 is provided on the top of one side surface of the adjusting connecting rod 128. The adjusting connecting rod 128 is connected to the axial movable rod 15 through the annular portion 1281 at the top, and the back side of the adjusting connecting rod 128 is fixedly installed on the top of the heat insulation board 18 and is in the same plane as the docking portion 161.

[0033] Once a fire breaks out in the box, high temperature and thick smoke spread rapidly. At this time, the movement trajectory of the insulation board 18 can change the direction of the airflow in the box. The originally turbulent airflow is pushed orderly from one end of the metering box to the other end with the movement of the insulation board 18, and the smoke with sparks. During the movement of the insulation board 18, it will inevitably pass through the top of the bottom panel 2. A rubber face frame 181 is installed on one side of the insulation board 18. The rubber face frame 181 can fit tightly on the surface of each panel, effectively filling the gap between the panels to prevent smoke and flames from leaking from the gap. At the same time, the exhaust groove 201 opened on one side of the surface of the bottom panel 2 gradually approaches the exhaust groove 201 as the insulation board 18 gradually approaches the exhaust groove 201, which drives the air flow inside the metering box in an orderly manner, so that part of the hot air and smoke are discharged from the exhaust groove 201.

[0034] When the heat insulation board 18 stands firmly in the middle of the metering box, the protection pattern inside the entire box changes. The rubber face frame 181 tightly seals one side of the metering box. Combined with the integrated molding design of the back frame 1, a sealed environment is constructed inside the box, which minimizes the entry of external air. Since the 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. Not only that, this design also effectively prevents the further spread of the fire and avoids causing greater damage to surrounding equipment and the environment.

[0035] like Figure 8 , Fig. 9 and Fig.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 recess 191 fixedly installed on the surface of the bottom panel 2, and a spherical clamping block 192 is movably clamped on the inner arc surface of the supporting recess 191. A cylindrical end 1921 is provided at the bottom of the outer arc surface of the spherical clamping block 192, and the outer arc surface of the cylindrical end 1921 is movably clamped to the inner wall of the supporting recess 191, and an airbag 193 is fixedly installed on the inner arc surface of the spherical clamping block 192, and the interior of the airbag 193 is filled with magnetorheological fluid 194.

[0036] In order to further stabilize the insulation board 18 in the middle section and ensure that it always maintains a predetermined position under complex working conditions, the sealing and fixing structure of the insulation board 18 is optimized, and an airbag 193 is wrapped inside the rubber surface frame 181 of the insulation board 18. The airbag 193 is fixed on the inner arc surface of the spherical block 192. A cylindrical end 1921 is arranged at the bottom of the outer arc surface of the spherical block 192. The cylindrical end 1921 is connected to the supporting recess 191 by an active snap-fitting manner. When the temperature inside the metering box rises sharply due to the fire, the cylindrical end 1921 will gradually expand after being heated based on its polystyrene material characteristics. As the temperature continues to rise, the cylindrical end 1921 continues to expand until it is completely snapped onto the inner arc surface of the supporting recess 191. At this time, the stability of the spherical block 192 is improved, providing reliable physical support for the insulation board 18.

[0037] At the same time, when the rubber face frame 181 contacts the airbag 193 during movement, since the airbag 193 is filled with magnetorheological fluid 194, the rheological properties of the magnetorheological fluid 194 will change significantly under the action of the external magnetic field. Through the control system, the magnetic field strength applied around the airbag 193 can be adjusted in real time, so that the magnetorheological fluid 194 can be quickly transformed from the initial low-viscosity fluid state to a semi-solid state with a certain rigidity. This transformation enables the airbag 193 to fit tightly between the rubber face frame 181 and the inner wall of the box, further enhancing the sealing effect, while also providing additional cushioning and support for the insulation board 18.

[0038] It not only improves the stability of the insulation board 18 in fire scenarios, but also has good adaptability. Under normal working conditions, the magnetorheological fluid 194 maintains low viscosity to ensure that the insulation board 18 can move flexibly. When a fire occurs, the rapid response magnetic field control mechanism can allow the insulation board 18 to quickly lock its position and play the best fire isolation role.

[0039] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 understood as limiting the scope of protection of the present invention.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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. The scope of protection of the present invention is defined by the attached 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).

Images