An electric energy metering box with security structure

Abstract

The present invention relates to the technical field of electric energy meter boxes, and proposes an electric energy meter box with a security structure, including a box body with an internal space, an air switch, an electricity meter, and a leakage protector are all arranged in the internal space, and the box body has an opening; a box cover is rotatably arranged on the box body, and the box cover opens or closes the opening after rotation; a protective shell is rotatably arranged in the box body, and the protective shell is buckled on the air switch and the leakage protector after rotation, and the protective shell is used to prevent people from touching the air switch and the leakage protector; a transmission member is slidably arranged in the internal space, and the transmission member slides close to or away from the rotating shaft of the box cover and the rotating shaft of the protective shell, and after the transmission member slides close to the rotating shaft of the box cover and the protective shell, the two ends of the transmission member are respectively connected to the rotating shaft of the box cover and the rotating shaft of the protective shell. Through the above technical scheme, the problem that the protective structure of the electric energy meter box in the prior art needs to be manually started is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy metering boxes, and in particular to an electric energy metering box with a security structure. Background Art

[0002] The electric energy meter box is a special device used to measure electric energy. It is usually installed at the power user to accurately measure and record the power consumption. Traditional electric energy meter boxes have some safety hazards during use, such as easy to be illegally opened and damaged by external forces, which will not only affect the accuracy of electric energy measurement, but also may cause serious consequences such as damage to power equipment and power outages.

[0003] In the prior art, the electric energy meter box with a security structure needs to rely on cameras to detect illegal box openers, and the security measures are initiated by the monitoring room personnel. In actual use, the monitoring room personnel usually cannot guarantee to be in the monitoring room at all times. Once the illegal box opener opens the electric energy meter box when no one is in the monitoring room, it is very likely to carry out acts such as vandalism and theft of electricity. Summary of the invention

[0004] The present invention provides an electric energy metering box with a security structure, which solves the problem in the related art that the protection structure of the electric energy metering box needs to be manually started.

[0005] The technical solution of the present invention is as follows:

[0006] An electric energy metering box with a security structure, comprising:

[0007] The box has an internal space, the air switch, the electricity meter, and the leakage protector are all arranged in the internal space, and the box has an opening;

[0008] A box cover is rotatably disposed on the box body, and the box cover opens or closes the opening after being rotated;

[0009] A protective shell is rotatably disposed in the box body, and after the protective shell is rotated, it is buckled on the air switch and the leakage protector, and the protective shell is used to prevent people from touching the air switch and the leakage protector;

[0010] A transmission member is slidably arranged in the internal space. After sliding, the transmission member approaches or moves away from the rotating shaft of the box cover and the rotating shaft of the protective shell. After the transmission member slides close to the rotating shaft of the box cover and the protective shell, the two ends of the transmission member are respectively connected to the rotating shaft of the box cover and the rotating shaft of the protective shell.

[0011] Optionally, the rotation axis of the protective shell is parallel to the rotation axis of the box cover, and further comprises:

[0012] A first gear, arranged on the rotating shaft of the box cover;

[0013] A transmission shaft is rotatably disposed in the internal space, the rotation axis of the transmission shaft is parallel to the rotation axis of the protective shell, and the transmission shaft is in transmission connection with the rotation axis of the protective shell;

[0014] A second gear, disposed on the transmission shaft;

[0015] The transmission member comprises:

[0016] A sliding frame, slidably disposed in the internal space, and the sliding frame slides close to or away from the rotation axis of the box cover and the protective shell;

[0017] The rack is slidably arranged on the sliding frame. After the sliding frame slides close to the rotating shaft of the box cover and the protective shell, the rack is transmission-connected with the first gear and the second gear.

[0018] Optionally, the transmission shaft is a worm, and further comprises:

[0019] The worm wheel is arranged on the rotating shaft of the protective shell, and the worm wheel is meshed with the worm for transmission.

[0020] Optionally, it also includes:

[0021] A door lock is arranged on the box cover, and is used to lock the box cover on the box body. The door lock comprises a lock body and a lock core, and the lock core is rotatably arranged on the lock body. The lock core comprises a lock hole, and the lock hole passes through the lock core;

[0022] A clamping plate is arranged on the lock core, and after the lock core rotates, the clamping plate is clamped with the box body;

[0023] The key comprises a first section and a second section, wherein the main bodies of the first section and the second section are both cylindrical, and after the key is inserted into the lock hole, the first section is located in the lock core, and the second section passes through the lock hole, and the second section has a through hole;

[0024] A rotating rod, rotatably disposed in the through hole, wherein the rotating axis of the rotating rod is perpendicular to the axis of the second section, and after the rotating rod rotates, both ends of the rotating rod enter or leave the through hole;

[0025] A sliding rod, one end of which is arranged on the sliding frame. After the rotating rod rotates away from the through hole, the rotating rod is used to push the other end of the sliding rod, and the sliding rod is used to drive the sliding frame to slide close to the rotating axis of the box cover and the protective shell.

[0026] Optionally, the sliding rod has a limiting hole, and further comprises:

[0027] A first elastic member, two ends of which are respectively arranged on the sliding frame and the box body, and the first elastic member is used to provide a force for the sliding frame to slide away from the rotating shaft of the box cover and the protective shell;

[0028] A lifting limit plate is set on the box body for lifting, and the lifting limit plate is located on the side of the sliding rod away from the rotating rod. After the lifting limit plate is lifted, it enters or leaves the limit hole. The lifting limit plate is used to provide a force to prevent the sliding frame from sliding away from the rotating axis of the box cover and the protective shell.

[0029] Optionally, it also includes:

[0030] The second elastic member has two ends respectively arranged on the lifting limit plate and the box body, and the second elastic member is used to provide a force for the lifting limit plate to enter the limit hole.

[0031] Optionally, the lifting limit plate is located below the sliding rod, and the lifting limit plate has a limiting portion and an abutting portion. After the limiting portion rises, it enters the limiting hole. The limiting portion is located below the sliding rod, and the abutting portion is located on one side of the limiting portion. After the clamping plate rotates and clamps with the box body, the clamping plate pushes the limiting portion down through the abutting portion.

[0032] Optionally, the air switch and the leakage protector are arranged at the same height, and the protective shell includes:

[0033] A rotating frame, rotatably arranged on the box body, and the rotating frame moves closer to or farther away from the air switch and the leakage protector after rotation;

[0034] An upper baffle plate is arranged on the rotating frame;

[0035] The lower baffle is arranged on the rotating frame, and the upper baffle and the lower baffle form a protection space. After the rotating frame rotates close to the air switch and the leakage protector, the air switch and the leakage protector are located in the protection space.

[0036] Optionally, it also includes:

[0037] The buffer gaskets are provided in two pieces and are respectively arranged at one end of the upper baffle plate and the lower baffle plate away from the rotating frame. The buffer gaskets are used to prevent the upper baffle plate and the lower baffle plate from colliding with the air switch and the leakage protector.

[0038] Optionally, it also includes:

[0039] A side baffle is arranged in the internal space. After the rotating frame rotates close to the air switch and the leakage protector, the side baffle is located between the upper baffle and the lower baffle. The side baffle is used to shield the side of the protection space.

[0040] The working principle and beneficial effects of the present invention are:

[0041] In the present invention, the box body is made of high-strength metal material and has a sturdy and durable internal space. The size of this internal space is carefully designed to accommodate equipment such as air switches, electricity meters, leakage protectors, etc., and a certain amount of space is reserved for heat dissipation and maintenance of the equipment. The surface of the box body is treated with anti-corrosion and can effectively resist erosion from the external environment. The opening of the box body is located on the front, and the edge of the opening is sealed with a rubber sealing strip to prevent dust and moisture from entering the interior of the box body. The size of the opening matches the size of the box cover to ensure that the box cover can tightly close the opening.

[0042] The box cover is made of transparent high-strength plastic material or metal sheet, which can not only facilitate operators to observe the operation of the equipment inside the box, but also facilitate opening. A lock is installed on the edge of the box cover, and only authorized personnel can open the box cover with a special key. A cushion is also installed on the inside of the box cover to prevent the equipment inside the box from being impacted when the box cover is closed.

[0043] The protective shell is made of metal plate with insulating material on the surface. It has good electrical insulation performance while having a protective function. The shape of the protective shell matches the appearance of the air switch and the leakage protector, and can be completely buckled on these devices. The protective shell is set in the box body by rotating the shaft, and the position of the shaft should be selected to ensure that the protective shell can be smoothly rotated to open and close.

[0044] The setting of the protective shell effectively prevents people from accidentally touching the air switch and leakage protector, thus avoiding electric shock accidents. At the same time, when the box cover is opened abnormally, the protective shell can automatically remain closed, increasing the difficulty of illegal operation and improving the safety of the electric energy meter box.

[0045] The sliding transmission parts can make the box cover and the protective shell open synchronously under normal circumstances, which will not affect the normal operation and maintenance of the internal equipment by the operator. When the box cover is opened abnormally, the protective shell will not be opened. According to the different opening conditions of the box cover and the protective shell, the background intelligent control system can automatically analyze the abnormal situation and issue an abnormal situation alarm. The protective shell can further prevent illegal operators from completing the power-off operation quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0047] Figure 1 It is a schematic diagram of the structure of the present invention;

[0048] Figure 2 This is a schematic diagram of the structure of the present invention after removing the top cover of the box body;

[0049] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0050] Figure 4 This is a top view of the present invention after removing the top cover of the box;

[0051] Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0052] Figure 6 For the present invention Figure 4 The enlarged structural diagram at C in the middle;

[0053] Figure 7 This is a schematic diagram of the rear view structure of the present invention without the top cover and side panels of the box body;

[0054] Figure 8 For the present invention Figure 7 The enlarged structural diagram at D in the middle;

[0055] Fig. 9 This is a schematic diagram of the invented key structure.

[0056] In the figure: 100, box body, 110, internal space, 111, air switch, 112, electricity meter, 113, leakage protector, 200, box cover, 300, protective shell, 400, transmission member, 510, first gear, 520, transmission shaft, 530, second gear, 410, sliding frame, 420, rack, 540, worm gear, 600, door lock, 610, lock body, 620, lock core, 630, lock hole, 640, card plate , 650, key, 651, first section, 652, second section, 6521, through hole, 660, rotating rod, 430, sliding rod, 431, limiting hole, 440, first elastic member, 450, lifting and lowering limiting plate, 460, second elastic member, 451, limiting part, 452, abutting part, 310, rotating frame, 320, upper baffle, 330, lower baffle, 340, protective space, 700, buffer gasket, 800, side baffle. DETAILED DESCRIPTION

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0058] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0059] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0061] Reference Figure 1~Figure 5 The present invention proposes an electric energy metering box with a security structure, including a box body 100 with an internal space 110, an air switch 111, an electricity meter 112, and a leakage protector 113 are all arranged in the internal space 110, and the box body 100 has an opening; a box cover 200 is rotatably arranged on the box body 100, and the box cover 200 opens or closes the opening after rotation; a protective shell 300 is rotatably arranged in the box body 100, and the protective shell 300 is buckled on the air switch 111 and the leakage protector 113 after rotation, and the protective shell 300 is used to prevent people from touching the air switch 111 and the leakage protector 113; a transmission member 400 is slidably arranged in the internal space 110, and the transmission member 400 slides to approach or move away from the rotating shaft of the box cover 200 and the rotating shaft of the protective shell 300. After the transmission member 400 slides close to the rotating shaft of the box cover 200 and the rotating shaft of the protective shell 300, the two ends of the transmission member 400 are respectively connected to the rotating shaft of the box cover 200 and the rotating shaft of the protective shell 300.

[0062] In this embodiment, the box body 100 is made of high-strength metal material and has a sturdy and durable internal space 110. The size of this internal space 110 is carefully designed to accommodate equipment such as an air switch 111, an electricity meter 112, and a leakage protector 113. At the same time, a certain amount of space is reserved for heat dissipation and maintenance of the equipment. The surface of the box body 100 is treated with anti-corrosion and can effectively resist erosion from the external environment. The opening of the box body 100 is located on the front, and the edge of the opening is sealed with a rubber sealing strip to prevent dust and moisture from entering the interior of the box body 100. The size of the opening matches the size of the box cover 200 to ensure that the box cover 200 can tightly close the opening.

[0063] The box cover 200 is made of a transparent high-strength plastic material or a metal sheet, which can facilitate the operator to observe the operation of the equipment inside the box body 100 and is easy to open. A lock is installed on the edge of the box cover 200, and only authorized personnel can open the box cover 200 using a special key 650. A cushion is also installed on the inner side of the box cover 200 to prevent the box cover 200 from causing impact to the equipment inside the box body 100 when it is closed.

[0064] The protective shell 300 is made of a metal plate and has an insulating material on the surface. It has good electrical insulation performance while having a protective function. The shape of the protective shell 300 matches the appearance of the air switch 111 and the leakage protector 113, and can be completely buckled on these devices. The protective shell 300 is rotatably arranged in the box body 100 through a rotating shaft, and the position of the rotating shaft should be selected to ensure that the protective shell 300 can be smoothly rotated to open and close.

[0065] The setting of the protective shell 300 effectively prevents people from accidentally touching the air switch 111 and the leakage protector 113, thereby avoiding electric shock accidents. At the same time, when the box cover 200 is opened abnormally, the protective shell 300 can automatically remain closed, which increases the difficulty of illegal operation and improves the safety of the electric energy meter box.

[0066] The sliding transmission member 400 can make the box cover 200 and the protective shell 300 open synchronously under normal circumstances, which will not affect the normal operation and maintenance of the internal equipment by the operator. When the box cover 200 is opened abnormally, the protective shell 300 will not be opened. According to the different opening conditions of the box cover 200 and the protective shell 300, the background intelligent control system can automatically analyze the abnormal situation and issue an abnormal situation alarm. The protective shell 300 can further prevent illegal operators from quickly completing the power-off operation.

[0067] Reference Figure 3 , Figure 5Furthermore, the rotation axis of the protective shell 300 is parallel to the rotation axis of the box cover 200, and also includes a first gear 510 arranged on the rotation axis of the box cover 200; the transmission shaft 520 is rotatably arranged in the internal space 110, and the rotation axis of the transmission shaft 520 is parallel to the rotation axis of the protective shell 300, and the transmission shaft 520 is transmission-connected with the rotation axis of the protective shell 300; the second gear 530 is arranged on the transmission shaft 520; the transmission member 400 includes a sliding frame 410 slidably arranged in the internal space 110, and the sliding frame 410 slides close to or away from the rotation axis of the box cover 200 and the protective shell 300; the rack 420 is slidably arranged on the sliding frame 410, and after the sliding frame 410 slides close to the rotation axis of the box cover 200 and the protective shell 300, the rack 420 is transmission-connected with the first gear 510 and the second gear 530.

[0068] In this embodiment, a first gear 510 is provided at the rotating shaft of the box cover 200, and a second gear 530 is provided on the transmission shaft 520. The transmission state between the first gear 510 and the second gear 530 can be effectively controlled by the transmission member 400, so that the transmission state is in a transmission state or a non-transmission state. When the transmission shaft 520 rotates, the rotating shaft of the protective shell 300 can be driven to rotate accordingly.

[0069] The transmission member 400 is composed of a sliding frame 410 and a rack 420. The sliding frame 410 can slide close to the rotating shaft of the box cover 200 and the transmission shaft 520. Moreover, when the sliding frame 410 slides close to the rotating shaft of the box cover 200 and the transmission shaft 520, the rack 420 on the sliding frame 410 will mesh with the first gear 510 and the second gear 530 at the same time, so that the first gear 510 and the second gear 530 are connected to each other through the rack 420.

[0070] When the box cover 200 is in a closed state, the sliding frame 410 is located away from the rotating shaft and the transmission shaft 520 of the box cover 200, and the rack 420 is not meshed with the first gear 510 and the second gear 530. When it is necessary to open the box cover 200, first slide the sliding frame 410 close to the rotating shaft and the transmission shaft 520 of the box cover 200, so that the rack 420 is meshed with the first gear 510 and the second gear 530 at the same time, and then open the box cover 200, so that the protective shell 300 can be opened synchronously. If the box cover 200 is opened directly, the protective shell 300 will not rotate accordingly, and the alarm system will be triggered.

[0071] The transmission shaft 520 , the sliding frame 410 and the rack 420 are all located in the internal space 110 , which can prevent illegal operators from directly opening the protective shell 300 from the outside.

[0072] Reference Figure 3~Figure 5Furthermore, the transmission shaft 520 is a worm, and also includes a worm wheel 540 disposed on the rotating shaft of the protective shell 300, and the worm wheel 540 is meshed with the worm for transmission.

[0073] In this embodiment, the transmission shaft 520 and the rotating shaft of the protective shell 300 adopt a worm gear 540 to drive the protective shell 300, so that the protective shell 300 has a certain self-locking effect, preventing illegal operators from directly opening the protective shell 300 after opening the box cover 200.

[0074] Reference Figure 6~Figure 9 , further, it also includes a door lock 600 arranged on the box cover 200, the door lock 600 is used to lock the box cover 200 on the box body 100, the door lock 600 has a lock body 610 and a lock core 620, the lock core 620 is rotatably arranged on the lock body 610, the lock core 620 has a lock hole 630, and the lock hole 630 runs through the lock core 620; a card plate 640 is arranged on the lock core 620, after the lock core 620 rotates, the card plate 640 is engaged with the box body 100; the key 650 has a first section 651 and a second section 652, the main bodies of the first section 651 and the second section 652 are both cylindrical, after the key 650 is inserted into the lock hole 630, the first section 65 1 is located in the lock core 620, the second section 652 passes through the lock hole 630, and the second section 652 has a through hole 6521; the rotating rod 660 is rotatably arranged in the through hole 6521, and the rotating axis of the rotating rod 660 is perpendicular to the axis of the second section 652. After the rotating rod 660 rotates, the two ends of the rotating rod 660 enter or leave the through hole 6521; one end of the sliding rod 430 is arranged on the sliding frame 410. After the rotating rod 660 rotates and leaves the through hole 6521, the rotating rod 660 is used to push the other end of the sliding rod 430, and the sliding rod 430 is used to drive the sliding frame 410 to slide close to the rotating axis of the box cover 200 and the protective shell 300.

[0075] In this embodiment, the door lock 600 can lock the box cover 200 on the box body 100. The door lock 600 has a lock body 610 and a lock core 620. The lock core 620 is rotatably arranged on the lock body 610, and the lock hole 630 passes through the lock core 620. When the box cover 200 is in a closed state, after the key 650 is inserted into the lock core 620, the first section 651 is in the lock hole 630, and the second section 652 passes through the lock hole 630. The main bodies of the first section 651 and the second section 652 are both cylindrical. The first section 651 also has a protrusion for contacting the lock core 620 and locking the lock body 610 and a protrusion for driving the lock core 620 to rotate. After the first section 651 is in the lock hole 630, the lock core 620 is in an unlocked state. The operator can drive the lock core 620 to rotate by turning the key 650, and the locking plate 640 is rotated to a position where it is not engaged with the box body 100 through the lock core 620, so that the box cover 200 can be opened.

[0076] The second section 652 of the key 650 has a through hole 6521, and the rotating rod 660 is rotatably set in the through hole 6521. After the second section 652 passes through the lock hole 630, the key 650 is turned. Under the action of gravity, the rotating rod 660 will rotate to a state perpendicular to the ground. When the key 650 is turned again, the rotating rod 660 will rotate in a state perpendicular to the second section 652, and push the sliding rod 430 to slide, so that the sliding rod 430 drives the sliding frame 410 to slide close to the rotating axis and the transmission shaft 520 of the box cover 200. At this time, the operator can open the box cover 200 again to make the box cover 200 and the protective shell 300 open synchronously.

[0077] The rotation axis of the rotating rod 660 is perpendicular to the axis of the second section 652, so that the rotation force of the rotating rod 660 is different from the rotation direction of the key 650, which can prevent the rotating rod 660 from rotating due to the reaction force given to the rotating rod 660 by the sliding frame 410 when the rotating rod 660 pushes the sliding frame 410.

[0078] The first section 651 and the second section 652 of the key 650 are used to realize two-level unlocking. The two-level unlocking method not only realizes that the transmission member 400 is located in a position for transmission while opening the box cover 200, but also increases the difficulty of opening the entire metering box and increases safety.

[0079] Reference Figure 6~Figure 9 Further, the sliding rod 430 has a limiting hole 431, and also includes a first elastic member 440 whose two ends are respectively arranged on the sliding frame 410 and the box body 100, and the first elastic member 440 is used to provide a force for the sliding frame 410 to slide away from the rotating axis of the box cover 200 and the protective shell 300; the lifting and limiting plate 450 is lifted and arranged on the box body 100, and the lifting and limiting plate 450 is located on the side of the sliding rod 430 away from the rotating rod 660. After the lifting and limiting plate 450 is lifted, it enters or leaves the limiting hole 431, and the lifting and limiting plate 450 is used to provide a force to prevent the sliding frame 410 from sliding away from the rotating axis of the box cover 200 and the protective shell 300.

[0080] In this embodiment, the rotating rod 660 drives the sliding frame 410 to slide to a position close to the rotating axis and the transmission shaft 520 of the box cover 200 through the sliding rod 430. During the opening of the box cover 200, it is necessary to ensure that the rack 420 always remains in a position meshing with the first gear 510 and the second gear 530. After the rotating rod 660 pushes the sliding rod 430 to slide, the lifting limit plate 450 can enter the limit hole 431 by lifting to prevent the sliding frame 410 from sliding away from the rotating axis and the transmission shaft 520 of the box cover 200 during the rotation of the box cover 200, thereby affecting the opening of the protective shell 300.

[0081] When the box cover 200 needs to be closed again, the box cover 200 is rotated to the position of closing the opening, and the lifting limit plate 450 is lifted and lowered away from the limit hole 431, so that the sliding frame 410 can slide away from the rotating axis and the transmission shaft 520 of the box cover 200 under the action of the first elastic member 440, and the sliding frame 410 drives the sliding rod 430 to slide close to the lock cylinder 620, so that when the key 650 is inserted next time, the rotating rod 660 can push the sliding rod 430 again by rotating.

[0082] The sliding rod 430 can be slidably disposed in the internal space 110 via a slideway at the top of the internal space 110 . The slideway provides the required braking force for the sliding rod 430 , thereby reducing the force required for the rotating rod 660 to push the rotating rod 660 .

[0083] Reference Figure 6~Figure 9 Further, the second elastic member 460 is also included, and both ends are respectively arranged on the lifting limit plate 450 and the box body 100, and the second elastic member 460 is used to provide a force for the lifting limit plate 450 to enter the limit hole 431.

[0084] In this embodiment, when the rotating rod 660 does not push the sliding rod 430, the second elastic member 460 below the lifting limit plate 450 is in a compressed state. After the rotating rod 660 pushes the sliding rod 430 to slide, when the limit hole 431 is above the lifting limit plate 450, the lifting limit plate 450 can automatically enter the limit hole 431 under the elastic action of the second elastic member 460, and the automatic locking of the sliding rod 430 is achieved through the second elastic member 460.

[0085] Reference Figure 6~Figure 9 Further, the lifting limit plate 450 is located below the sliding rod 430. After the lifting limit plate 450 rises, it enters the limit hole 431. The lifting limit plate 450 has a limit portion 451 and a contact portion 452. The limit portion 451 is located below the sliding rod 430, and the contact portion 452 is located on one side of the limit portion 451. After the clamping plate 640 rotates and clamps with the box body 100, the clamping plate 640 pushes the limit portion 451 to descend.

[0086] In this embodiment, the lifting limit plate 450 is located below the sliding rod 430. When the sliding rod 430 is not pushed by the rotating rod 660, the lifting limit plate 450 is always in contact with the bottom of the sliding rod 430. When the limit hole 431 moves to above the lifting limit plate 450, the lifting limit plate 450 can automatically enter the limit hole 431 under the action of the second elastic member 460.

[0087] The lifting limit plate 450 is divided into a limit portion 451 and a contact portion 452. The limit portion 451 can enter the limit hole 431 under the action of the second elastic member 460, and the contact portion 452 is located on the rotation path of the clamping plate 640. When the clamping plate 640 rotates to a position clamped with the box body 100, the clamping plate 640 will abut against the contact portion 452 and push the contact portion 452 to move in a direction away from the limit hole 431, thereby driving the limit portion 451 to leave the limit hole 431, so that the sliding rod 430 and the sliding frame 410 can be moved away from the rotating axis and the transmission shaft 520 of the box body 100 again under the action of the first elastic member 440.

[0088] The lifting and limiting plate 450 can automatically enter or leave the limiting hole 431 through the limiting portion 451 and the abutting portion 452 of the lifting and limiting plate 450, thereby further improving the automation level of the device.

[0089] It should be further supplemented that: the rotating rod 660 can be designed as a structure with one end rotatably arranged in the through hole 6521, and the rotating axis is located at the end close to the first end. When the key 650 is pulled out, the rotating rod 660 can automatically rotate into the through hole 6521 under the action of the lock hole 630.

[0090] When the position of the rotating rod 660 close to the center is the rotating axis, the rotating rod 660 can be manually reset after opening the box cover 200, and then the key 650 can be pulled out. When locking the box cover 200, only the key 650 with only the first section 651 is needed to lock it.

[0091] Reference Figure 6~Figure 9 Furthermore, the air switch 111 and the leakage protector 113 are arranged at the same height, and the protective shell 300 includes a rotating frame 310 rotatably arranged on the box body 100, and the rotating frame 310 rotates to approach or move away from the air switch 111 and the leakage protector 113; the upper baffle 320 is arranged on the rotating frame 310; the lower baffle 330 is arranged on the rotating frame 310, and the upper baffle 320 and the lower baffle 330 form a protective space 340. After the rotating frame 310 rotates close to the air switch 111 and the leakage protector 113, the air switch 111 and the leakage protector 113 are located in the protective space 340.

[0092] In this embodiment, the air switch 111 and the leakage protector 113 are arranged at the same height, so that the protective shell 300 can simultaneously cover the air switch 111 and the leakage protector 113. At the same time, the electricity meter 112 can also be arranged at the same height, and an observation port is opened on the box cover 200 to meet the daily operation of observing and recording the electricity meter 112.

[0093] The protective shell 300 is divided into a rotating frame 310, an upper baffle 320 and a lower baffle 330. The protective shell 300 shields the air switch 111 and the leakage protector 113 through the rotating frame 310, the upper baffle 320 and the lower baffle 330. The absence of the side baffle 800 can prevent the side baffle 800 from affecting the rotation of the protective shell 300, reduce the gap between the air switch 111, the leakage protector 113 and the two ends of the protective shell 300, and thus reduce the overall volume of the protective shell 300.

[0094] Reference Figure 6~Figure 9 Further, it also includes two buffer gaskets 700, which are respectively arranged at one end of the upper baffle 320 and the lower baffle 330 away from the rotating frame 310, and the buffer gasket 700 is used to prevent the upper baffle 320 and the lower baffle 330 from colliding with the air switch 111 and the leakage protector 113.

[0095] In this embodiment, when the box cover 200 is closed, the protective shell 300 is also closed synchronously. In order to better protect the air switch 111 or the leakage protector 113, when the protective shell 300 is in a closed state, the end of the upper baffle 320 and the lower baffle 330 away from the rotating frame 310 should be in contact with the inner wall of the box body 100 or the outer shell of the air switch 111 and the leakage protector 113. The buffer gasket 700 is made of soft material and can play a good buffering role to prevent damage to components caused by collision between the two.

[0096] Reference Figure 6~Figure 9 Furthermore, it also includes a side baffle 800 arranged in the internal space 110. After the rotating frame 310 rotates close to the air switch 111 and the leakage protector 113, the side baffle 800 is located between the upper baffle 320 and the lower baffle 330. The side baffle 800 is used to shield the side of the protection space 340.

[0097] In this embodiment, the side baffle 800 is fixedly arranged, which is not only conducive to reducing the overall volume of the protective shell 300, but also conducive to preventing illegal operators from closing the air switch 111 from the side with tools.

[0098] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An electric energy metering box with a security structure, characterized in that: include: The box (100) has an internal space (110), and the air switch (111), the electricity meter (112), and the leakage protector (113) are all arranged in the internal space (110); the box (100) has an opening; A box cover (200) is rotatably disposed on the box body (100), and the box cover (200) opens or closes the opening after being rotated; a protective shell (300) rotatably disposed in the box body (100); the protective shell (300) is buckled onto the air switch (111) and the leakage protector (113) after rotation; the protective shell (300) is used to prevent people from touching the air switch (111) and the leakage protector (113); A transmission member (400) is slidably arranged in the internal space (110); after sliding, the transmission member (400) approaches or moves away from the rotation axis of the box cover (200) and the rotation axis of the protective shell (300); after the transmission member (400) slides close to the rotation axis of the box cover (200) and the protective shell (300), two ends of the transmission member (400) are respectively connected to the rotation axis of the box cover (200) and the rotation axis of the protective shell (300); the slidably arranged transmission member (400) enables the box cover (200) and the protective shell (300) to be opened synchronously under normal circumstances, and when the box cover (200) is opened abnormally, the protective shell (300) will not be opened.

2. The electric energy meter box with a security structure according to claim 1, characterized in that: The rotation axis of the protective shell (300) is parallel to the rotation axis of the box cover (200), and further comprises: A first gear (510) is arranged on the rotating shaft of the box cover (200); a transmission shaft (520) rotatably disposed in the internal space (110), the rotation axis of the transmission shaft (520) being parallel to the rotation axis of the protective shell (300), and the transmission shaft (520) being transmission-connected to the rotation axis of the protective shell (300); A second gear (530) is arranged on the transmission shaft (520); The transmission member (400) comprises: A sliding frame (410) is slidably disposed in the internal space (110), and the sliding frame (410) moves closer to or farther from the rotation axis of the box cover (200) and the protective shell (300) after sliding; The rack (420) is slidably disposed on the sliding frame (410); after the sliding frame (410) slides close to the rotating shaft of the box cover (200) and the protective shell (300), the rack (420) is transmission-connected with the first gear (510) and the second gear (530).

3. The electric energy meter box with a security structure according to claim 2, characterized in that: The transmission shaft (520) is a worm gear, and further comprises: A worm wheel (540) is arranged on the rotating shaft of the protective shell (300), and the worm wheel (540) is meshed with the worm for transmission.

4. The electric energy meter box with a security structure according to claim 2, characterized in that: Also includes: a door lock (600) disposed on the box cover (200), the door lock (600) being used to lock the box cover (200) on the box body (100), the door lock (600) comprising a lock body (610) and a lock core (620), the lock core (620) being rotatably disposed on the lock body (610), the lock core (620) comprising a lock hole, the lock hole penetrating the lock core (620); A clamping plate (640) is arranged on the lock core (620), and after the lock core (620) rotates, the clamping plate (640) is clamped with the box body (100); A key (650) comprising a first section (651) and a second section (652); the first section (651) and the second section (652) are both cylindrical in shape; after the key (650) is inserted into the lock hole, the first section (651) is located in the lock core (620), and the second section (652) passes through the lock hole; the second section (652) has a through hole (6521); A rotating rod (660) is rotatably disposed in the through hole (6521), wherein the rotation axis of the rotating rod (660) is perpendicular to the axis of the second section (652), and after the rotating rod (660) rotates, both ends of the rotating rod (660) enter or leave the through hole (6521); One end of the sliding rod (430) is arranged on the sliding frame (410). After the rotating rod (660) rotates away from the through hole (6521), the rotating rod (660) is used to push the other end of the sliding rod (430). The sliding rod (430) is used to drive the sliding frame (410) to slide close to the rotating axis of the box cover (200) and the protective shell (300).

5. The electric energy meter box with a security structure according to claim 4, characterized in that: The sliding rod (430) has a limiting hole (431) and further comprises: a first elastic member (440), two ends of which are respectively arranged on the sliding frame (410) and the box body (100), the first elastic member (440) being used to provide a force for the sliding frame (410) to slide away from the rotation axis of the box cover (200) and the protective shell (300); A lifting limit plate (450) is lifted and arranged on the box body (100); the lifting limit plate (450) is located on a side of the sliding rod (430) away from the rotating rod (660); the lifting limit plate (450) enters or leaves the limit hole (431) after lifting; the lifting limit plate (450) is used to provide a force to prevent the sliding frame (410) from sliding away from the rotating axis of the box cover (200) and the protective shell (300).

6. The electric energy meter box with a security structure according to claim 5, characterized in that: Also includes: The second elastic member (460) has two ends respectively arranged on the lifting limit plate (450) and the box body (100), and the second elastic member (460) is used to provide a force for the lifting limit plate (450) to enter the limit hole (431).

7. The electric energy meter box with a security structure according to claim 6, characterized in that: The lifting limit plate (450) is located below the sliding rod (430). The lifting limit plate (450) comprises a limit portion (451) and an abutment portion (452). After the limit portion (451) rises, it enters the limit hole (431). The limit portion (451) is located below the sliding rod (430). The abutment portion (452) is located at one side of the limit portion (451). After the clamping plate (640) rotates and clamps with the box body (100), the clamping plate (640) pushes the limit portion (451) to descend through the abutment portion (452).

8. The electric energy meter box with a security structure according to claim 1, characterized in that: The air switch (111) and the leakage protector (113) are arranged at the same height, and the protective shell (300) comprises: A rotating frame (310) is rotatably disposed on the box body (100), and the rotating frame (310) moves closer to or farther from the air switch (111) and the leakage protector (113) after rotation; An upper baffle (320) is arranged on the rotating frame (310); A lower baffle (330) is arranged on the rotating frame (310); the upper baffle (320) and the lower baffle (330) form a protection space (340); after the rotating frame (310) rotates to approach the air switch (111) and the leakage protector (113), the air switch (111) and the leakage protector (113) are located in the protection space (340).

9. The electric energy meter box with a security structure according to claim 8, characterized in that: Also includes: The buffer gaskets (700) are provided in two pieces and are respectively arranged at one end of the upper baffle plate (320) and the lower baffle plate (330) away from the rotating frame (310); the buffer gaskets (700) are used to prevent the upper baffle plate (320) and the lower baffle plate (330) from colliding with the air switch (111) and the leakage protector (113).

10. The electric energy meter box with a security structure according to claim 9, characterized in that: Also includes: A side baffle (800) is arranged in the internal space (110); after the rotating frame (310) rotates close to the air switch (111) and the leakage protector (113), the side baffle (800) is located between the upper baffle (320) and the lower baffle (330); the side baffle (800) is used to shield the side of the protection space (340).

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