Wiring error prevention electric energy metering junction box

Abstract

The invention belongs to the technical field of electric power metering, and particularly relates to an anti-miswiring electric energy metering junction box. Comprising a box body and a cover body, the cover body is located above the box body, and a plurality of terminal holes are further formed in the two sides of the box body and used for being connected with wires; a locking and inserting mechanism is arranged on the box body and is used for mounting / dismounting the cover body on / from the box body; the two sides of the box body are further provided with a supporting frame, the supporting frame is provided with a plurality of guide circular rings, the guide circular rings are provided with guide sealing assemblies, and the guide sealing assemblies are used for sealing the terminal holes. Through the guiding and closing assembly, external dust or water vapor is prevented from entering the junction box through the unclosed terminal holes, so that the junction box can automatically close or open the terminal holes according to whether the front of each terminal hole is connected with a wire or not, the metering accuracy of the junction box is improved, and the metering efficiency of the junction box is improved. And the limitation of the junction box in use is further reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power metering, and in particular relates to an anti-miswiring electric energy metering junction box. Background Art

[0002] The metering junction box is a special junction box in the standard junction box of the electric energy metering device. It provides a unified wiring place for metering equipment such as electric energy meters and transformers, making the installation process more convenient and efficient. It can effectively isolate the electric energy metering equipment from the external circuit and provide convenient equipment for the calibration of electric energy metering.

[0003] During the use of existing electric energy metering junction boxes, when the connecting wires are no longer connected to the terminal holes, or when the junction box is not in use, the terminal holes are in an open state, and the junction box cannot automatically seal the wiring ports, so that external dust or water vapor can easily enter the inside of the junction box through the unsealed ports. At the same time, unauthorized and illegal wiring operations may occur, making it difficult to ensure the safety of the electric energy metering junction box during use. At the same time, the accuracy of measurement will also be affected, making the electric energy metering junction box have strong limitations when in use, thereby further reducing the use effect of the junction box. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an anti-miswiring electric energy metering junction box, which effectively solves the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-miswiring electric energy metering junction box, comprising a box body and a cover body, the cover body is located above the box body, and a plurality of wiring terminal holes are also provided on both sides of the box body, and the wiring terminal holes are used to connect the wires; a locking and plugging mechanism is provided on the box body, and the locking and plugging mechanism is used to install / remove the cover body on the box body; support frames are also installed on both sides of the box body, and a plurality of guide rings are provided on the support frames, and a guide closing component is provided on the guide rings, and the guide closing component is used to close the wiring terminal holes; two L-shaped pipes are also symmetrically installed on both sides of the box body, and the upper and lower sides of the two L-shaped pipes on one side of the box body are respectively connected to a U-shaped pipe, and a plurality of positioning circular tubes are respectively installed on the opposite surfaces of the two U-shaped pipes, and a displacement fitting unit is provided on the positioning circular tube, and the displacement fitting unit is used to limit the wires installed on the box body.

[0006] Preferably, the guide closure assembly includes a plurality of guide square columns, and the plurality of guide square columns are all slidably arranged on the guide circular ring; a guide U-seat is installed at one end of the guide square column close to the center of the guide circular ring, and a guide circular wheel is rotatably arranged in the guide U-seat, and the guide circular wheel is located on the moving path of the wire; a guide spring is sleeved on the guide square column, one end of the guide spring is fixedly connected to the guide U-seat, and the other end is fixedly connected to the inner wall of the guide circular ring.

[0007] Preferably, one end of the guide square column away from the guide U seat is installed with one end of a U-shaped round rod, and the openings of several U-shaped round rods are all facing the wire; a splicing round block is installed on the other end of the U-shaped round rod, and the combination of several splicing round blocks can synthesize a complete circle; the side of the U-shaped round rod away from the guide ring is a telescopic rod; the U-shaped round rod is also installed with a guide square block, and a guide sliding column is installed on the guide square block, and a guide base plate is slidably arranged on the guide sliding column, and the guide base plate is arranged on the guide ring.

[0008] Preferably, the locking and fixing mechanism includes two locking blocks symmetrically arranged on the bottom of the cover body; locking slots corresponding to the number of locking blocks are arranged on the top of the box body, and the locking slots are located on the moving path of the locking blocks; retaining inclined grooves are arranged on the opposite back surfaces of the two locking blocks, and the inclined surfaces on the retaining inclined grooves face the cover body; storage square grooves are arranged on the opposite back surfaces of the two locking slots, and one side of the storage square groove is connected to the locking slot; ventilation square holes are also arranged on the left and right sides of the locking slot, and the ventilation square holes are connected to the L-shaped pipe.

[0009] Preferably, a locking bevel block is provided in the storage square groove, and the inclined surface on the locking bevel block is located on the moving path of the bottom of the locking plug block; part of the inclined surface on the locking bevel block is located in the locking slot; the locking bevel block fits in the retaining bevel slot; two locking square columns are symmetrically provided on the opposite back surfaces of the two locking bevel blocks, and one end of the locking square column away from the locking bevel block passes through the storage square groove and is connected to a locking limit plate; a locking spring is sleeved on the locking square column, one end of the locking spring is fixedly connected to the locking bevel block, and the other end is fixedly connected to the side wall of the storage square groove.

[0010] Preferably, the displacement fitting unit includes a positioning cylinder slidably arranged on the positioning circular tube, a positioning U-column is installed at the end of the positioning cylinder away from the U-shaped pipe, and the two positioning U-columns are oriented in the same direction; a cavity is arranged at the two end points of the positioning U-column, a column is slidably arranged in the cavity, one end of the column is connected to an extrusion spring, and the other end is connected to a displacement block, the extrusion spring is located in the cavity, and the end of the extrusion spring away from the column is fixedly connected to the inner bottom surface of the cavity: the two displacement blocks are commonly connected to a semicircular block, and the contact between the semicircular block and the wire is made of elastic material.

[0011] Preferably, a limiting square plate is provided on the positioning cylinder, and a limiting cylinder is installed on the side of the limiting square plate close to the U-shaped pipe, and a limiting base plate is slidably provided on the limiting cylinder, and the limiting base plate is connected to the side wall of the U-shaped pipe: a limiting spring is sleeved on the limiting cylinder, one end of the limiting spring is connected to the limiting base plate, and the other end is connected to the limiting square plate; the same number of touch blocks as the splicing circular blocks are arbitrarily provided on the two positioning U-columns, and the side walls of the splicing circular blocks are located on the moving path of the touch blocks.

[0012] Preferably, an elastic brake is also provided on the box body; the elastic brake includes an auxiliary base arranged on both sides of the box body, an auxiliary cylinder is slidably provided on the auxiliary base, one end of the auxiliary cylinder is connected to an auxiliary limit plate, and the other end is connected to an auxiliary square plate; an auxiliary spring is sleeved on the auxiliary cylinder, one end of the auxiliary spring is fixedly connected to the auxiliary base, and the other end is fixedly connected to the auxiliary square plate.

[0013] Preferably, a plurality of braking circular grooves are provided on the locking square column; the two auxiliary square plates are commonly connected with a braking cross block, and a braking round rod corresponding to its number is provided on the side of the braking cross block close to the locking square column, and the braking circular grooves are located on the moving path of the braking round rod; a pull ring is also installed on the side of the braking cross block away from the locking square column.

[0014] Preferably, a pressure block is slidably arranged in the locking slot, and the side of the pressure block close to the cover body is located on the moving path of the bottom of the locking block; the pressure block is located below the locking bevel block; the ventilation square hole is located below the pressure block; and a plurality of brake springs are also arranged in the locking slot, one end of the brake spring is fixedly connected to the bottom of the pressure block, and the other end is fixedly connected to the inner bottom surface of the locking slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) Under the action of the guide closing component, the splicing round blocks are driven to move, so that several splicing round blocks move relatively, and the opened opening allows the wire to pass smoothly. If there is no wire connected at the terminal hole, the several splicing round blocks will not move, which protects the inside of the terminal hole and prevents external dust or water vapor from entering the inside of the terminal box through the unclosed terminal hole. The terminal box can automatically close or open the terminal hole according to whether there is a wire connected in front of each terminal hole. When the terminal hole is opened, it is connected to the wire, making it difficult for dust or water vapor to enter, so that the safety of the terminal box during use is guaranteed, and at the same time, the measurement accuracy of the terminal box is not affected, thereby improving the measurement accuracy and further reducing the limitations of the terminal box during use; (2) When the wire end has passed through several guide wheels, the guide wheels are moved along the side wall of the wire, and the movement limit of the wire is set to avoid shaking during movement, and to avoid deviation in movement that makes it difficult for the wire to enter the terminal hole. The wire can be installed without carefully aligning the wire with the terminal hole, which improves the installation effect of the junction box and the installation efficiency and effect of the wire. At the same time, when the guide wheel is rotating, the guide spring is always at the current buffer strength, so that the guide wheel always maintains this strength to fit the wire. The side wall improves the connection effect between the guide round wheel and the wire; at the same time, when the guide round wheel moves on the wire for a period of time, it will contact the protective layer wrapped on the wire. At this time, the guide square column will continue to move for a distance, thereby continuing to drive the splicing round block to move, so that the spacing between the splicing round blocks continues to increase, so that the wire protective layer can smoothly pass through the splicing round blocks and contact with the side thereof. At the same time, the splicing round blocks are made of flexible materials and will deform when contacting the wire protective layer. The wire protective layer will not be damaged due to contact with the splicing round blocks, which further improves the use effect of the junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture: Figure 1 This is an exploded view of the box body of the present invention; Figure 2 This is a schematic diagram of the structure of the spliced ​​circular blocks of the present invention; Figure 3 This is an exploded view of the locking plug block of the present invention; Figure 4 This is a schematic diagram of the semicircular block structure of the present invention; Figure 5 It is a schematic diagram of the overall structure of the present invention; Figure 6 A cross-sectional view of the locking slot of the present invention; Figure 7 This is a schematic diagram of the pressure block structure of the present invention; Figure 8 This is a schematic diagram of the structure of the guide circular wheel of the present invention; In the figure: 1, box body; 2, cover body; 3, support frame; 4, guide ring; 5, L-shaped pipe; 6, U-shaped pipe; 7, positioning round pipe; 8, guide square column; 9, guide U seat; 10, guide round wheel; 11, guide spring; 12, U-shaped round rod; 13, splicing round block; 14, guide square block; 15, guide slide column; 16, guide base plate; 17, locking block; 18, locking slot; 19, retaining inclined slot; 20, storage square slot; 21, ventilation square hole; 22, locking inclined block; 23, locking square Column; 24, locking spring; 25, positioning cylinder; 26, positioning U-column; 27, column; 28, extrusion spring; 29, displacement block; 30, semicircular block; 31, limiting square plate; 32, limiting cylinder; 33, limiting base plate; 34, limiting spring; 35, touch block; 36, auxiliary base; 37, auxiliary cylinder; 38, auxiliary square plate; 39, auxiliary spring; 40, brake groove; 41, brake cross block; 42, brake rod; 43, pull ring; 44, pressure block; 45, brake spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Example, by Figures 1 to 8The present invention comprises a box body 1 and a cover body 2, the cover body 2 is located above the box body 1, and a number of terminal holes are also provided on both sides of the box body 1, and the terminal holes are used to connect wires; a locking and plugging mechanism is provided on the box body 1, and the locking and plugging mechanism is used to install / remove the cover body 2 on the box body 1; support frames 3 are also installed on both sides of the box body 1, and a number of guide rings 4 are provided on the support frame 3, and a guide closing component is provided on the guide ring 4, and the guide closing component is used to close the terminal holes; two L-shaped pipes 5 are also symmetrically installed on both sides of the box body 1, and the upper and lower sides of the two L-shaped pipes 5 on one side of the box body 1 are respectively connected to a U-shaped pipe 6, and a number of positioning circular tubes 7 are respectively installed on the opposite surfaces of the two U-shaped pipes 6, and a displacement fitting unit is provided on the positioning circular tube 7, and the displacement fitting unit is used to limit the wires installed on the box body 1; the guide closing component comprises a number of guide square columns 8, and the several guide square columns 8 are all slidably arranged On the guide ring 4; a guide U seat 9 is installed at one end of the guide square column 8 close to the center of the guide ring 4, and a guide round wheel 10 is rotatably arranged in the guide U seat 9, and the guide round wheel 10 is located on the moving path of the wire; a guide spring 11 is sleeved on the guide square column 8, one end of the guide spring 11 is fixedly connected to the guide U seat 9, and the other end is fixedly connected to the inner side wall of the guide ring 4; one end of the guide square column 8 away from the guide U seat 9 is installed with one end of a U-shaped round rod 12, and the openings of several U-shaped round rods 12 are all facing the wire; a splicing round block 13 is installed on the other end of the U-shaped round rod 12, and the combination of several splicing round blocks 13 can synthesize a complete circle; the side of the U-shaped round rod 12 away from the guide ring 4 is a telescopic rod; a guide block 14 is also installed on the U-shaped round rod 12, and a guide slide column 15 is installed on the guide block 14, and a guide base plate 16 is slidably arranged on the guide slide column 15, and the guide base plate 16 is arranged on the guide ring 4; When the wire is installed on the box body 1, the wire is placed in front of the terminal hole and moved so that the wire is located in the guide ring 4 and moves. During the movement, the wire end will contact a plurality of guide round wheels 10. Under the action of pressure, the guide U seat 9 on the guide round wheel 10 moves on the upper limit of the guide ring 4 through the guide square column 8, so that the guide spring 11 is in a buffering state; thereby, the splicing round block 13 is driven to move under the action of the U-shaped round rod 12, so that the plurality of splicing round blocks 13 move relatively, and the opened opening allows the wire to pass smoothly. If there is no wire connection at the terminal hole, the plurality of splicing round blocks 13 are connected. The round block 13 will not move, thus protecting the interior of the terminal hole and preventing dust or water vapor from entering the interior of the terminal box through the unsealed terminal hole, so that the terminal hole can be automatically closed or opened according to whether a wire is connected to each terminal hole. When the terminal hole is opened, it is connected to the wire, making it difficult for dust or water vapor to enter, thereby ensuring the safety of the terminal box when in use, and preventing the measurement accuracy of the terminal box from being affected, thereby improving the measurement accuracy and further reducing the limitations of the terminal box when in use; it is worth mentioning that after the above pressure disappears, It indicates that the wire ends have passed through a plurality of guide round wheels 10. At this time, the plurality of guide round wheels 10 are moved along the side wall of the wire. The movement limit setting of the wire can avoid shaking and the like during movement. At the same time, it can avoid deviation in movement that makes it difficult for the wire to enter the terminal hole. The wire can be installed without carefully aligning the wire with the terminal hole, thereby improving the installation effect of the junction box and the installation efficiency and effect of the wire. At the same time, when the guide round wheel 10 is rotating, the guide spring 11 is always at the current buffer strength, so that the guide round wheel 10 always maintains the strength to fit the side wall of the wire. The connection effect between the guide round wheel 10 and the wire is improved; at the same time, when the guide round wheel 10 moves on the wire for a period of time, it will contact the protective layer wrapped on the wire. At this time, the guide square column 8 will continue to move for a distance, thereby continuing to drive the splicing round block 13 to move, so that the spacing between the splicing round blocks 13 continues to increase, so that the wire protective layer can smoothly pass through the splicing round blocks 13 and contact with the side thereof. At the same time, the splicing round block 13 is made of flexible material and will deform when in contact with the wire protective layer. The wire protective layer will not be damaged due to contact with the splicing round block 13, which further improves the use effect of the junction box.

[0020] The locking and fixing mechanism of this embodiment includes two locking blocks 17 symmetrically arranged on the bottom of the cover body 2; a locking slot 18 corresponding to the number of the locking blocks 17 is arranged on the top of the box body 1, and the locking slot 18 is located on the moving path of the locking block 17; a retaining inclined groove 19 is arranged on the opposite back sides of the two locking blocks 17, and the inclined surface of the retaining inclined groove 19 faces the cover body 2; a storage square groove 20 is arranged on the opposite back sides of the two locking slots 18, and one side of the storage square groove 20 is connected to the locking slot 18; a ventilation square hole 21 is also arranged on the left and right sides of the locking slot 18, and the ventilation square hole 21 is connected to the L-shaped pipe 5; a locking oblique block 22 is arranged in the storage square groove 20, and the inclined surface on the locking oblique block 22 is located on the moving path of the bottom of the locking block 17; part of the inclined surface on the locking oblique block 22 is located in the locking slot 18; the locking oblique block 22 and The retaining inclined groove 19 fits together; two locking square columns 23 are symmetrically arranged on the opposite back surfaces of the two locking inclined blocks 22, and one end of the locking square column 23 away from the locking inclined block 22 passes through the storage square groove 20 and is connected to a locking limit plate; a locking spring 24 is sleeved on the locking square column 23, one end of the locking spring 24 is fixedly connected to the locking inclined block 22, and the other end is fixedly connected to the side wall of the storage square groove 20; a pressure block 44 is slidably arranged in the locking slot 18, and the side of the pressure block 44 close to the cover body 2 is located on the moving path of the bottom of the locking plug 17; the pressure block 44 is located below the locking inclined block 22; the ventilation square hole 21 is located below the pressure block 44; a plurality of brake springs 45 are also arranged in the locking slot 18, one end of the brake spring 45 is fixedly connected to the bottom of the pressure block 44, and the other end is fixedly connected to the inner bottom surface of the locking slot 18; When the wires are installed on the terminal holes on the box body 1, it means that the use of the box body 1, that is, the junction box, has been roughly completed. At this time, it is necessary to close the opening of the box body 1, that is, to install the cover body 2 on the box body 1, and align the two locking blocks 17 on the bottom of the cover body 2 with the locking slots 18 on the top of the box body 1 and move them so that the locking blocks 17 move within the locking slots 18, and guide the movement of the cover body 2 to avoid the cover body 2 from being misaligned when being installed on the box body 1, thereby improving the installation effect of the cover body 2; at the same time, the bottom of the locking block 17 will contact the locking bevel in the locking slot 18 The inclined surface on the locking block 22 is moved in a limited position in the box body 1 through the locking column 23 under the action of pressure, so that the locking spring 24 is in a buffering state, and then the locking bevel block 22 is limited and moved in the storage square groove 20 until it is completely located therein, so that the locking plug 17 continues to move so that its bottom contacts the pressure block 44, so that it moves in the locking slot 18, so that the plurality of brake springs 45 are in a buffering state, until the locking plug 17 moves into place, so that the retaining bevel groove 19 on the locking plug 17 moves to the front of the locking bevel block 22, so that the locking bevel block 22 is no longer limited, and the locking spring 24 is pressed against the locking bevel block 22. The reset drives the locking bevel block 22 to reset and move, so that it enters the retaining bevel groove 19, thereby limiting the locking plug block 17, so that the cover body 2 is installed on the box body 1, and the installation operation of the cover body 2 is completed; when it is necessary to disassemble, it is only necessary to pull the locking square column 23 outwards, so that the locking bevel block 22 moves within the storage square groove 20, thereby releasing the limiting setting of the locking plug block 17, and the cover body 2 is ejected from the box body 1 through the reset of the brake spring 45, completing the disassembly operation of the cover body 2, and the installation and disassembly operations of the cover body 2 are convenient and quick, and can be completed without the help of any tools, thereby improving the use effect of the junction box, and avoiding When an emergency occurs during use and the wire needs to be replaced or the wiring box needs to be maintained, it is difficult to disassemble the cover body 2 due to the lack of suitable tools. Since the bottom plane of the locking bevel block 22 is in contact with the bottom plane of the retaining bevel groove 19, the cover body 2 is no longer pressed down, so that the brake spring 45 wants to reset, and the reset force brought about acts on the locking plug block 17, thereby strengthening the contact strength of the bottom of the locking bevel block 22 and the bottom of the retaining bevel groove 19, thereby strengthening the connection strength between the two, avoiding movement due to non-human factors, improving the installation effect of the cover body 2, and further reducing the limitations of the junction box during use.

[0021] The displacement fitting unit of the present embodiment includes a positioning cylinder 25 slidably arranged on the positioning circular tube 7, and a positioning U-column 26 is installed at one end of the positioning cylinder 25 away from the U-shaped pipe 6, and the two positioning U-columns 26 are oriented in the same direction; cavities are arranged at the two end points of the positioning U-column 26, and a column 27 is slidably arranged in the cavity, one end of the column 27 is connected to an extrusion spring 28, and the other end is connected to a displacement block 29, the extrusion spring 28 is located in the cavity, and the end of the extrusion spring 28 away from the column 27 is fixedly connected to the inner bottom surface of the cavity: the two displacement blocks 29 are commonly connected to a semicircular block 30, and the semicircular block 30 is connected to the conductor The contact part is made of elastic material; a limiting square plate 31 is arranged on the positioning cylinder 25, and a limiting cylinder 32 is installed on the side of the limiting square plate 31 close to the U-shaped pipe 6, and a limiting base plate 33 is slidably arranged on the limiting cylinder 32, and the limiting base plate 33 is connected to the side wall of the U-shaped pipe 6: a limiting spring 34 is sleeved on the limiting cylinder 32, one end of the limiting spring 34 is connected to the limiting base plate 33, and the other end is connected to the limiting square plate 31; the two positioning U-pillars 26 are arbitrarily provided with the same number of touch blocks 35 as the splicing circular blocks 13, and the side wall of the splicing circular block 13 is located on the moving path of the touch blocks 35; When the cover 2 is installed on the box body 1 through the locking and fixing mechanism, it means that the wiring operation of the wiring box has been completed. At this time, the gas in the locking slot 18 is squeezed into the vent hole 21 through the movement of the pressure block 44, so that it enters the U-shaped pipe 6 through the L-shaped pipe 5, and then enters into a plurality of positioning circular pipes 7, and acts on the positioning cylinder 25. Under the action of pressure, the positioning cylinder 25 moves within the positioning circular pipe 7, thereby driving the positioning U column 26 to move, so that the two positioning U columns 26 at the two U-shaped pipes 6 move toward each other, and under the action of the column 27 and the extrusion spring 28, the displacement block 29 is driven to move, thereby driving the semicircular block 30 to move, so that the two semicircular blocks 30 When the two semicircular blocks 30 move toward each other, if the junction box, that is, the box body 1, completes the connection of the wire, if there is a connection, it means that the terminal hole at that location is relatively closed, and if there is no connection, it means that the terminal hole at that location is in an open state; if the terminal hole is in an open state, the two semicircular blocks 30 are connected by moving toward each other, so that the front of the terminal hole is closed, so that other wires are prevented from being connected to the inside of the junction box when not in use, and unauthorized and illegal wiring operations are prevented from occurring in the box body 1, thereby ensuring the safety of the junction box when in use and improving the measurement accuracy of the junction box. If the terminal hole is in a relatively closed state, that is, when a wire is connected, the semicircular block 30 acts on the wire, so that the semicircular block The area made of elastic material on 30 is in a buffer state under the action of pressure, that is, it is deformed, and the shape and size of the deformation are the side wall and diameter of the wire until the two semicircular blocks 30 are connected, so that the wire installed on the box body 1 is limited, so as to avoid displacement or dislocation due to non-human factors during use, thereby improving the use effect of the junction box, avoiding the shaking of the wire during use, resulting in unstable connection between the wire and the terminal hole, and affecting the measurement accuracy of the junction box, thereby improving the measurement accuracy of the junction box and reducing the limitations of the junction box during use; it is worth mentioning that when the positioning cylinder 25 is moving, the limiting square plate 31 on the positioning cylinder 25 passes through the limiting cylinder 32 The limiting base plate 33 is limited and moved, so that the limiting spring 34 is in a buffering state, and the movement of the semicircular block 30 is limited to avoid shaking during movement, thereby improving the stability of the semicircular block 30 during movement, so that the two semicircular blocks 30 are accurately docked, and there will be no misalignment in contact with the wire. At the same time, when the cover 2 is removed from the box body 1, the limiting spring 34 is reset and drives the positioning cylinder 25 to reset and move, so that the gas in the positioning tube 7 is reset to the locking slot 18 through the U-shaped pipe 6, which is used to assist the reset movement of the pressure block 44, so that the cover 2 is ejected from the box body 1 smoothly, thereby improving the disassembly effect of the cover 2 and further improving the use effect of the junction box;It is worth mentioning that when the semicircular block 30 is in use, it will also drive the trigger block 35 to move. If the splicing circular block 13 in front of the terminal hole is not opened, the contact strength of several splicing circular blocks 13 is strengthened by the movement of the trigger block 35, and the connection effect of several splicing circular blocks 13 is strengthened. If it is opened, the contact strength between the splicing circular block 13 and the wire is strengthened to prevent the wire from being dislocated or shaking during use. The wire limit setting further improves the use effect of the guide closure component. ;

[0022] The box body 1 of this embodiment is also provided with an elastic brake; the elastic brake comprises an auxiliary base 36 arranged on both sides of the box body 1, an auxiliary cylinder 37 is slidably arranged on the auxiliary base 36, one end of the auxiliary cylinder 37 is connected to an auxiliary limit plate, and the other end is connected to an auxiliary square plate 38; an auxiliary spring 39 is sleeved on the auxiliary cylinder 37, one end of the auxiliary spring 39 is fixedly connected to the auxiliary base 36, and the other end is fixedly connected to the auxiliary square plate 38; a plurality of braking circular grooves 40 are provided on the locking square column 23; the two auxiliary square plates 38 are commonly connected with a braking cross block 41, and a braking round rod 42 corresponding to the number of the braking cross block 41 is provided on the side close to the locking square column 23, and the braking round groove 40 is located on the moving path of the braking round rod 42; a pull ring 43 is also installed on the side of the braking cross block 41 away from the locking square column 23; When the cover 2 is installed on the box body 1 using the locking and inserting mechanism, the pull ring 43 is first pulled downward to allow the brake block 41 on it to move to the upper limit position on the auxiliary cylinder 37 through the auxiliary square plate 38, so that the auxiliary spring 39 is in a buffering state, so that the brake rod 42 on the brake block 41 moves downward and is no longer connected to the brake groove 40, thereby releasing the limit setting of the locking square column 23, so that the locking inclined block 22 on the locking and inserting mechanism can move normally, so that the cover 2 can be normally installed on the box body 1; when the cover 2 is installed on the box body 1, the pull ring 43 is loosened, so that the auxiliary spring 39 is reset to drive the brake rod 42 to reset and move, so that it passes through the brake groove 40, thereby locking the cover 2 The limit setting of the inclined block 22 prevents the cover body 2 from being dislocated and detached from the box body 1 due to non-human factors during use, thereby improving the use effect of the junction box and also improving the use effect of the locking and plugging mechanism, so that the cover body 2 is fixed on the box body 1, and prevents personnel other than the operator from operating the junction box or accidentally touching the junction box to cause unauthorized and illegal wiring operations, thereby improving the safety of the junction box during use. At the same time, when it is necessary to remove the cover body 2, the brake round rod 42 can release the limit on the locking square column 23 by pulling the pull ring 43 downward, so that the cover body 2 can be detached from the box body 1 through the locking and plugging mechanism, thereby improving the measurement accuracy of the junction box and further reducing the limitations of the junction box during use.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A miswiring-proof electric energy metering junction box, comprising a box body (1) and a cover body (2), wherein the cover body (2) is located above the box body (1), and the box body (1) is provided with a plurality of terminal holes on both sides thereof, wherein the terminal holes are used for connecting wires; the characteristics are as follows: The box body (1) is provided with a locking and inserting mechanism, which is used to install / remove the cover body (2) on the box body (1); support frames (3) are also installed on both sides of the box body (1), and a plurality of guide rings (4) are provided on the support frames (3), and a guide sealing component is provided on the guide rings (4), and the guide sealing component is used to seal the terminal hole; two L-shaped pipes (5) are also symmetrically installed on both sides of the box body (1), and the upper and lower sides of the two L-shaped pipes (5) on one side of the box body (1) are respectively connected to a U-shaped pipe (6), and a plurality of positioning pipes (7) are respectively installed on the opposite surfaces of the two U-shaped pipes (6), and a displacement fitting unit is provided on the positioning pipe (7), and the displacement fitting unit is used to limit the position of the wire installed on the box body (1).

2. The anti-miswiring electric energy metering junction box according to claim 1, characterized in that: The guide closure assembly comprises a plurality of guide square columns (8), and the plurality of guide square columns (8) are all slidably arranged on the guide circular ring (4); a guide U seat (9) is installed at one end of the guide square column (8) close to the center of the guide circular ring (4), and a guide circular wheel (10) is rotatably arranged in the guide U seat (9), and the guide circular wheel (10) is located on the moving path of the wire; a guide spring (11) is sleeved on the guide square column (8), and one end of the guide spring (11) is fixedly connected to the guide U seat (9), and the other end is fixedly connected to the inner side wall of the guide circular ring (4).

3. The anti-miswiring electric energy metering junction box according to claim 2, characterized in that: One end of a U-shaped round rod (12) is mounted on the end of the guide square column (8) away from the guide U seat (9), and the openings of the plurality of U-shaped round rods (12) are all facing the conductor; a splicing round block (13) is mounted on the other end of the U-shaped round rod (12), and a combination of the plurality of splicing round blocks (13) can form a complete circle; a telescopic rod is provided on the side of the U-shaped round rod (12) away from the guide ring (4); a guide square block (14) is also mounted on the U-shaped round rod (12), a guide sliding column (15) is mounted on the guide square block (14), a guide base plate (16) is slidably mounted on the guide sliding column (15), and the guide base plate (16) is mounted on the guide ring (4).

4. The anti-miswiring electric energy metering junction box according to claim 1, characterized in that: The locking and fixing mechanism comprises two locking blocks (17) symmetrically arranged on the bottom of the cover body (2); locking slots (18) corresponding in number to the locking blocks (17) are arranged on the top of the box body (1), and the locking slots (18) are located on the moving path of the locking blocks (17); the opposite sides of the two locking blocks (17) are provided with retaining inclined grooves (19), and the inclined surfaces of the retaining inclined grooves (19) face the cover body (2); the opposite sides of the two locking slots (18) are provided with storage square grooves (20), and one side of the storage square grooves (20) is connected to the locking slots (18); the left and right sides of the locking slots (18) are also provided with ventilation square holes (21), and the ventilation square holes (21) are connected to the L-shaped pipe (5).

5. The anti-miswiring electric energy metering junction box according to claim 4, characterized in that: A locking oblique block (22) is arranged in the storage square groove (20), and the inclined surface on the locking oblique block (22) is located on the moving path of the bottom of the locking plug block (17); part of the inclined surface on the locking oblique block (22) is located in the locking slot (18); the locking oblique block (22) fits with the retaining oblique slot (19); two locking square columns (23) are symmetrically arranged on the opposite back surfaces of the two locking oblique blocks (22), and one end of the locking square column (23) away from the locking oblique block (22) passes through the storage square groove (20) and is connected to a locking limit plate; a locking spring (24) is sleeved on the locking square column (23), one end of the locking spring (24) is fixedly connected to the locking oblique block (22), and the other end is fixedly connected to the side wall of the storage square groove (20).

6. The anti-miswiring electric energy metering junction box according to claim 1, characterized in that: The displacement fitting unit comprises a positioning cylinder (25) slidably arranged on the positioning circular tube (7); a positioning U-column (26) is installed at one end of the positioning cylinder (25) away from the U-shaped pipe (6); the two positioning U-columns (26) are oriented in the same direction; cavities are arranged at the two end points of the positioning U-column (26); a column (27) is slidably arranged in the cavity; one end of the column (27) is connected to an extrusion spring (28), and the other end is connected to a displacement block (29); the extrusion spring (28) is located in the cavity; the end of the extrusion spring (28) away from the column (27) is fixedly connected to the inner bottom surface of the cavity; the two displacement blocks (29) are commonly connected to a semicircular block (30); the contact portion between the semicircular block (30) and the conductor is made of elastic material.

7. The anti-miswiring electric energy metering junction box according to claim 6, characterized in that: A limiting square plate (31) is arranged on the positioning cylinder (25), a limiting cylinder (32) is installed on one side of the limiting square plate (31) close to the U-shaped pipe (6), a limiting base plate (33) is slidably arranged on the limiting cylinder (32), and the limiting base plate (33) is connected to the side wall of the U-shaped pipe (6); a limiting spring (34) is sleeved on the limiting cylinder (32), one end of the limiting spring (34) is connected to the limiting base plate (33), and the other end is connected to the limiting square plate (31); and the same number of touch blocks (35) as the splicing circular blocks (13) are arbitrarily arranged on the two positioning U-columns (26), and the side walls of the splicing circular blocks (13) are located on the moving path of the touch blocks (35).

8. The anti-miswiring electric energy metering junction box according to claim 5, characterized in that: The box body (1) is also provided with an elastic brake; the elastic brake comprises an auxiliary base (36) provided on both sides of the box body (1); an auxiliary cylinder (37) is slidably provided on the auxiliary base (36); one end of the auxiliary cylinder (37) is connected to an auxiliary limit plate, and the other end is connected to an auxiliary square plate (38); an auxiliary spring (39) is sleeved on the auxiliary cylinder (37); one end of the auxiliary spring (39) is fixedly connected to the auxiliary base (36), and the other end is fixedly connected to the auxiliary square plate (38).

9. The anti-miswiring electric energy metering junction box according to claim 8, characterized in that: The locking square column (23) is provided with a plurality of braking circular grooves (40); the two auxiliary square plates (38) are connected to a braking cross block (41) in common; a braking round rod (42) corresponding to the number thereof is provided on a side of the braking cross block (41) close to the locking square column (23); the braking circular grooves (40) are located on a moving path of the braking round rod (42); and a pull ring (43) is also installed on a side of the braking cross block (41) away from the locking square column (23).

10. The anti-miswiring electric energy metering junction box according to claim 4, characterized in that: A pressure block (44) is slidably arranged in the locking slot (18), and a side of the pressure block (44) close to the cover body (2) is located on the moving path of the bottom of the locking plug block (17); the pressure block (44) is located below the locking inclined block (22); the ventilation square hole (21) is located below the pressure block (44); and a plurality of brake springs (45) are also arranged in the locking slot (18), one end of the brake spring (45) is fixedly connected to the bottom of the pressure block (44), and the other end is fixedly connected to the inner bottom surface of the locking slot (18).

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