Electric energy metering box with modular structure

Abstract

The invention relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box with a modular structure, which comprises a box body, wire inlet holes are formed in the upper side and the lower side of the right wall of the box body, a plurality of mounting grooves are formed in the upper side and the lower side of the rear wall of an inner cavity of the box body, worm tooth rods are arranged on the front sides of the mounting grooves, and positioning holes are formed in the worm tooth rods. Wire clamping plates are arranged on the lower sides of the mounting grooves, and electric meter boxes are movably inserted into the mounting grooves. Information screens and wiring blocks in all the electric meter boxes can be driven to synchronously and forwards deflect at the same time to achieve rapid inspection and maintenance, when the electric meter boxes are independently broken down or damaged, the clamping bent plates can drive the positioning columns to be disengaged from the positioning holes by pressing the pressing columns, rapid maintenance or replacement is facilitated, and the maintenance efficiency is improved. In addition, when the wiring block deflects, a wire clamping plate and a wire guiding groove are matched with a wire pressing assembly to limit the wiring, the interference effect on the cable is small, and the cable is prevented from being damaged due to large-amplitude swinging.

Description

Technical Field

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

[0002] The electric energy metering box with a modular structure is an electrical device for electric energy metering and distribution. It adopts a modular design and consists of multiple modules with different functions, such as a metering module, a protection module, a control module, a communication module, etc. Each module has its specific function and can be independently installed, debugged, and maintained, which is convenient for quickly replacing faulty modules and reducing maintenance time and costs. This structure also has a high degree of flexibility and expandability, and can easily add or reduce modules according to actual electricity consumption needs to adapt to power systems with different scales and functional requirements.

[0003] Patent CN118739045A discloses a modular electric energy metering box, including a metering outer box. A flipping display mechanism is arranged on the metering outer box for pushing the electric meter to tilt. A wire management and connection mechanism is arranged on the flipping display mechanism for wire management and simultaneously pushing the connector to be inserted. A quick-connection and ejection mechanism is arranged on the wire management and connection mechanism for quickly ejecting the connected wire joint. By rotating the cam, the convex ring will gradually rotate along the back of the meter box from the support frame, pushing both meter boxes to rotate counterclockwise outward along the rotating shaft by 65 degrees, which can clearly show the wiring holes and the display screen for the staff. It can reduce the actions of squatting or tilting the head when the staff checks the electric meter, thereby reducing the risk of falling or injury caused by unstable postures. The reading of the electric meter can be seen more clearly, which is convenient for the staff to check the electric meter and the wire connection, and carry out necessary maintenance and repair work.

[0004] During the use of the modular electric energy metering box in the above patent, when the outer box door is opened, the flipping display mechanism automatically operates, driving the whole meter box to move outward and tilt, so as to facilitate the viewing of the display screen and the wiring terminal. However, since it is not necessary to tilt the meter box every time the box is opened for operation, it is easy to cause unnecessary operation troubles; since the meter box is fixedly connected to the rotating shaft, it is inconvenient to disassemble and install a new meter box when a certain meter box fails or is damaged and needs to be replaced; when the actual electricity consumption demand changes, it is impossible to expand and install the meter box, and the practicability is relatively low; since the wiring terminal is at the bottom of the meter box, when connecting the cable, the cable is directly input from the bottom of the meter box and fixed on it. When the meter box tilts, the wiring at the bottom has a large swinging range and is greatly affected by interference, and is extremely prone to bending and damage. Summary of the Invention

[0005] The object of the present invention is to solve the problems that in the process of using a general modular structure power metering box, the display screen cannot be controlled as required, the wiring terminals are inclined, inconvenient to load and unload, have poor expandability, and the cables of the wiring terminals are easily damaged due to large-range swinging. The present invention provides a modular structure power metering box.

[0006] In order to achieve the above object, the present invention specifically adopts the following technical solutions: A modular structure power metering box, including a box body. Both upper and lower sides of the right wall of the box body are provided with wire inlet holes. Both upper and lower sides of the rear wall of the inner cavity of the box body are provided with a plurality of installation grooves. A spiral tooth rod is arranged on the front side of the installation groove. Positioning holes are provided on the spiral tooth rod. Clamping plates for wires are arranged on the lower sides of the installation grooves. A meter box is movably inserted into the installation grooves. An information screen is rotatably connected to the upper side of the front wall of the meter box. A plurality of rotatable wiring blocks are arranged on the lower side of the front wall of the meter box. A wire groove is provided on the left wall of the wiring block. A wire pressing assembly for fixing the wire ends is arranged on the wiring block; Defective tooth discs for adjusting the deflection of the information screen and the wiring block are rotatably connected to the left and right cavity walls of the meter box respectively. A positioning bent plate is slidably clamped in the defective tooth disc. A positioning column that is movably clamped with the positioning hole is arranged on the positioning bent plate. A pressing column for adjusting the contraction of the positioning bent plate is slidably inserted into the front wall of the meter box.

[0007] Further, clamping discs are fixedly connected to both upper and lower sides of the right wall of the inner cavity of the box body. A dial worm is rotatably connected between the clamping disc and the rear wall of the inner cavity of the box body. A limiting arc groove corresponding to the dial worm is provided on the front wall of the clamping disc. The spiral tooth rod is rotatably connected between the left and right walls of the inner cavity of the box body and is meshed with the dial worm.

[0008] Further, two upper and lower positioning holes are in a group. Each meter box corresponds to two groups of positioning holes, and the two groups of positioning holes are symmetrically arranged on both front sides of the corresponding installation groove.

[0009] Further, a wire clamping groove for limiting the cable is provided on the front side of the clamping plate. The rear end of the wire clamping groove is cylindrical and is directly below the wire groove. A rubber ring with a front opening is arranged at the rear end of the wire clamping groove. The front side of the rubber ring is obliquely connected to the inner wall of the wire clamping groove and the opening diameter is smaller than the diameter of the cable.

[0010] Further, an avoidance groove corresponding to the spiral tooth rod is provided on the rear side of the meter box.

[0011] Further, the clamping bent plates are symmetrically arranged up and down in the toothless disc. The bottom of the clamping bent plate has a through groove, and inclined grooves are opened on both sides of the through groove. A T-shaped pin column that is movably clamped with the inclined groove is slidably inserted into the side wall of the toothless disc. An elastic semi-circular ring is fixedly connected to the outer end of the T-shaped pin column. Notch straight plates are slidably connected to the left and right side cavity walls of the meter box. The elastic semi-circular ring is rotatably connected to the side wall of the notch straight plate ring, and the elastic semi-circular ring is elastically connected to the side walls of the notch straight plate ring and the toothless disc. A hinge rod is movably connected between the notch straight plate ring and the pressing column.

[0012] Further, a rotating rod is rotatably connected to the lower side of the front wall of the meter box. The wiring block is linearly fixedly sleeved on the rotating rod. A plurality of conductive sleeves that are movably sleeved on the rotating rod are fixedly connected to the front wall of the meter box. The conductive sleeve is rotationally electrically connected to the wiring block. The wiring block is located in front of the information screen.

[0013] Further, drive gears that mesh with the toothless disc are rotatably connected to the left and right side cavity walls of the meter box respectively. Tooth belts are meshingly sleeved between the drive gears, the information screen, and the two rotating end parts on both sides of the rotating rod respectively.

[0014] Further, a rounded corner block is arranged on the top of the wiring block. Corresponding rubber limiting strips are fixedly connected to the inner walls of the rounded corner block and the inner wall of the wire groove respectively. The distance between the rubber limiting strips is smaller than the diameter of the wire and cable. The wire groove is in an inverted U shape and the rubber limiting strips are in an arc shape at the outer edge of the top of the wire groove. A wiring terminal post groove is arranged on the front side of the upper wall of the wire groove.

[0015] Further, the wire pressing assembly includes an S-shaped wiring end cover that is rotatably connected to the upper wall of the wiring block. The S-shaped wiring end cover can seal the wiring terminal post groove. An elastic adjusting column is slidably clamped on the upper wall of the wiring block. Card slots are opened on the outer wall of the elastic adjusting column and the right inner wall of the S-shaped wiring end cover respectively. Steel balls that can be clamped with the card slots are arranged between the elastic adjusting column and the S-shaped wiring end cover. A sliding groove that is adapted to the steel balls and has a depth smaller than the diameter of the steel balls is opened on the upper wall of the wiring block.

[0016] The beneficial effects of the present invention are as follows: After the meter box of the present invention is installed, the toothless disc drives the positioning column to be clamped with the positioning hole on the spiral tooth rod through the clamping bent plate. The spiral tooth rod is controlled to rotate as needed to drive the toothless disc to rotate, so that the information screens and the wiring blocks in each meter box can be simultaneously driven to deflect forward synchronously to achieve rapid inspection and maintenance. When a single meter box fails or is damaged, by pressing the pressing column, the clamping bent plate can drive the positioning column to be disengaged from the positioning hole, so as to facilitate rapid repair or replacement.

[0017] Through the insertion of the meter box into the installation groove and the clamping mechanism of the positioning post and the positioning hole, multiple installation grooves are provided in the metering box and used in cooperation with the spiral gear rod with positioning holes on the front side, so that the meter box can be expanded and installed as needed, with higher practicability.

[0018] When the wiring block deflects, the clamping plate and the wire groove cooperate with the wire pressing component to limit the wiring. Since the cable passes through and is close to the shaft part of the wiring block and is limited thereon, rather than being directly input and limited by the rotating edge of the wiring block, when the wiring block deflects, the interference on the cable is relatively small, avoiding the cable from swinging greatly and being damaged. Brief Description of the Drawings

[0019] Figure 1 is the three-dimensional structure diagram of the electric energy metering box of the present invention; Figure 2 is the three-dimensional structure diagram of the box body part of the electric energy metering box of the present invention; Figure 3 is the three-dimensional structure diagram of the meter box part of the electric energy metering box of the present invention; Figure 4 is the three-dimensional sectional view of the meter box part of the electric energy metering box of the present invention Figure 1 ; Figure 5 is the three-dimensional sectional view of the meter box part of the electric energy metering box of the present invention Figure 2 ; Figure 6 is the three-dimensional structure diagram of the missing tooth disc part of the electric energy metering box of the present invention; Figure 7 is the exploded view of the missing tooth disc and the notched straight plate ring part of the electric energy metering box of the present invention; Figure 8 is the three-dimensional sectional view of the clamping plate part of the electric energy metering box of the present invention; Figure 9 is the three-dimensional structure diagram of the wiring block part of the electric energy metering box of the present invention; Figure 10 is the three-dimensional section of the wiring block part of the electric energy metering box of the present invention Figure 1 ; Figure 11 is the three-dimensional section of the wiring block part of the electric energy metering box of the present invention Figure 2 .

[0020] Reference numerals: 1, box body; 11, inlet hole; 12, mounting groove; 13, spiral gear rod; 14, positioning hole; 15, chuck; 16, dial worm; 2, wire clamping plate; 21, wire clamping groove; 22, rubber ring; 3, meter box; 31, conductive sleeve; 4, information screen; 5, rotating rod; 51, wiring block; 52, rounded corner block; 53, rubber limit strip; 54, terminal post groove; 55, S-shaped terminal cover; 56, elastic adjusting column; 57, card slot; 58, steel ball; 6, toothless disc; 61, clamping bent plate; 62, positioning column; 63, inclined groove; 64, T-shaped pin column; 65, elastic semi-circular ring; 66, notched straight plate ring; 67, pressing column; 68, hinge rod; 7, transmission gear; 71, toothed belt. Detailed implementation mode

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] Embodiment 1, as Figures 1 - 11 shown, an electric energy metering box with a modular structure includes a box body 1. Inlet holes 11 are provided on both the upper and lower sides of the right wall of the box body 1. A plurality of mounting grooves 12 are provided on both the upper and lower sides of the rear wall of the inner cavity of the box body 1. A spiral gear rod 13 is provided on the front side of the mounting groove 12. A positioning hole 14 is provided on the spiral gear rod 13. Wire clamping plates 2 are provided on the lower sides of the mounting grooves 12. A meter box 3 is movably inserted into the mounting grooves 12. An information screen 4 is rotatably connected to the upper side of the front wall of the meter box 3. A plurality of rotatable wiring blocks 51 are provided on the lower side of the front wall of the meter box 3. A wire groove is provided on the left wall of the wiring block 51. A wire pressing assembly for fixing the wire end is provided on the wiring block 51; Toothless discs 6 for adjusting the deflection of the information screen 4 and the wiring block 51 are rotatably connected to the left and right cavity walls of the meter box 3. A clamping bent plate 61 is slidably clamped in the toothless disc 6. The clamping bent plate 61 is symmetrically arranged up and down in the toothless disc 6. A positioning column 62 that is movably clamped with the positioning hole 14 is provided on the clamping bent plate 61. A pressing column 67 for adjusting the contraction of the clamping bent plate 61 is slidably inserted into the front wall of the meter box 3.

[0023] A rotating rod 5 is rotatably connected to the lower side of the front wall of the meter box 3. The wiring blocks 51 are linearly and fixedly sleeved on the rotating rod 5. A plurality of conductive sleeves 31 that are movably sleeved on the rotating rod 5 are fixedly connected to the front wall of the meter box 3. The conductive sleeves 31 are rotationally and electrically connected to the wiring blocks 51. The wiring blocks 51 are located in front of the information screen 4.

[0024] An avoidance groove corresponding to the spiral gear rod 13 is provided on the rear side of the meter box 3 to facilitate the insertion of the spiral gear rod 13 and connection with the positioning column 62 for the installation of the meter box 3.

[0025] When installing the electric meter box 3, press the pressure column 67 on the front side, which drives the clamping plate 61 in the missing tooth disc 6 in the side wall cavities of the electric meter box 3 to move and contract, thus leaving a space for the spiral tooth rod 13 to be inserted. Correspondingly, insert the electric meter box 3 into the corresponding installation groove 12 and insert it in place. The spiral tooth rod 13 is just between the upper and lower clamping plates 61. Release the pressure on the pressure column 67, and the two clamping plates 61 reset to drive the positioning column 62 to be clamped into the corresponding positioning hole 14. The electric meter box 3 is stably installed, and can be quickly disassembled for maintenance or replacement by pressing the pressure column 67 again. By setting multiple installation grooves 12 and using the spiral tooth rod 13 with positioning holes 14 on the front side, the electric meter box 3 can be extended and installed as needed, with high practicability. After the electric meter box 3 is installed, rotate the corresponding spiral tooth rod 13 to drive the positioning column 62, so that the missing tooth disc 6 rotates. The missing tooth disc 6 then drives the information screens 4 and the wiring blocks 51 in the corresponding electric meter boxes 3 to deflect forward synchronously. At this time, the deflected wiring blocks 51 are convenient for cable connection. Insert the cable through the inlet hole 11 on the right side, pass in front of the wire clamping plate 2, and pass the terminal post through the rear side of the rotating rod 5 from the left side of the corresponding wiring block 51. Control the terminal post to pull the cable upward by an appropriate distance, then press the cable into the wire groove, and cooperate with the wire pressing assembly to fix the cable connection terminal post. The cable is thus connected to the wiring block 51. Subsequently, organize the cable part below the wiring block 51, clip this part of the cable into the wire clamping plate 2, and straighten the remaining part of the cable in the box body 1 outward through the inlet hole 11 in the reverse direction. The cable is organized and limited under the limiting action of the wire clamping plate 2, the wire groove, and the wire pressing assembly, so as to avoid scattering and bending. The connection of the remaining cable is carried out according to the corresponding steps. The organized cable is limited on it because it passes through and is close to the shaft part of the wiring block 51, rather than being directly limited on it by the rotating edge of the wiring block 51. When controlling the deflection of the wiring block 51, the disturbance to the cable is small, avoiding large-amplitude swinging of the cable and damage.

[0026] Embodiment 2, on the basis of the above embodiment, chuck plates 15 are fixedly connected to both the upper and lower sides of the right wall of the inner cavity of the box body 1. A flap worm 16 is rotatably connected between the chuck plate 15 and the rear wall of the inner cavity of the box body 1. A limiting arc groove corresponding to the flap worm 16 is opened on the front wall of the chuck plate 15. The spiral tooth rod 13 is rotatably connected between the left and right walls of the inner cavity of the box body 1 and is meshed with the flap worm 16.

[0027] The upper and lower positioning holes 14 are in a group, and each electric meter box 3 corresponds to two groups of positioning holes 14. And the two groups of positioning holes 14 are symmetrically arranged on both sides in front of the corresponding installation groove 12, ensuring the stable installation and connection of the electric meter box 3.

[0028] By adjusting the paddle worm 16, the spiral tooth rod 13 is driven to rotate. The spiral tooth rod 13 drives the positioning column 62 through the positioning hole 14, so as to drive the toothless disc 6 to rotate. The toothless disc 6 simultaneously drives the information screens 4 and the wiring blocks 51 in the corresponding respective meter boxes 3 to deflect forward synchronously. By utilizing the property of self-locking of the transmission between the paddle worm 16 and the spiral tooth rod 13, the deflection adjustment of the information screen 4 and the wiring block 51 is relatively stable and can be maintained at any deflection angle, which is convenient for multi-angle inspection and maintenance. And the deflection of the paddle worm 16 is limited by the limiting arc groove, which is convenient for controlling the safe deflection range and convenient for controlling the initial position of the spiral tooth rod 13, ensuring that when the meter box 3 is installed, the positioning hole 14 is in the up-and-down position and can correspond to the positioning column 62 in the meter box 3 up and down.

[0029] Embodiment 3: On the basis of the above embodiment, the bottom of the clamping bent plate 61 has a through groove and inclined grooves 63 are opened on both sides of the through groove. A T-shaped pin column 64 that is slidably inserted into the side wall of the toothless disc 6 and is movably clamped with the inclined groove 63 is provided. The outer end of the T-shaped pin column 64 is fixedly connected with an elastic semi-circular ring 65. Gap straight plate rings 66 are slidably connected in the left and right side cavity walls of the meter box 3. The elastic semi-circular ring 65 is rotatably connected in the side wall of the gap straight plate ring 66, and the elastic semi-circular ring 65 is elastically connected to the side walls of both the gap straight plate ring 66 and the toothless disc 6. A hinge rod 68 is movably connected between the gap straight plate ring 66 and the pressing column 67.

[0030] When it is necessary to adjust the contraction and movement of the clamping bent plate 61, the pressing column 67 is pressed to drive the hinge rod 68 to squeeze the gap straight plate ring 66. The gap straight plate ring 66 is pressed to drive the elastic semi-circular ring 65 to move towards the toothless disc 6. The elastic semi-circular ring 65 is compressed, so as to drive the T-shaped pin column 64 to squeeze the inclined groove 63. The upper and lower two clamping bent plates 61 drive the positioning column 62 to contract and move, so as to facilitate the subsequent removal of the positioning column 62 from the positioning hole 14 on the spiral tooth rod 13 for the disassembly of the meter box 3, or the insertion into the positioning hole 14 for the installation of the meter box 3. Since the elastic semi-circular ring 65 is elastically connected to the side walls of both the gap straight plate ring 66 and the toothless disc 6, the elastic connection between the elastic semi-circular ring 65 and the side wall of the toothless disc 6 is used to control the automatic reset of the clamping bent plate 61 after contraction and movement, while the elastic connection between the elastic semi-circular ring 65 and the side wall of the gap straight plate ring 66 is used to ensure that when the meter box 3 is not installed initially, the elastic semi-circular ring 65 drives the toothless disc 6 through the T-shaped pin column 64 to make the clamping bent plate 61 stably in the up-and-down position. And during the subsequent installation of the meter box 3, the clamping bent plate 61 can drive the positioning column 62 to align with the positioning hole 14 on the spiral tooth rod 13 and perform clamping.

[0031] Embodiment 4: On the basis of the above embodiment, transmission gears 7 that mesh with the toothless disc 6 are rotatably connected in the left and right side cavity walls of the meter box 3. Tooth belts 71 are respectively meshed and sleeved between the transmission gears 7, the information screens 4, and the two rotating end portions at both sides of the rotating rod 5.

[0032] When controlling the rotation of the spiral gear rod 13, the spiral gear rod 13 drives the positioning column 62 through the positioning hole 14, so that the clamping bent plate 61 drives the toothless disc 6 to rotate. The toothless disc 6 rotates against the pulling force of the elastic semi-circular ring 65. The toothless disc 6 drives the transmission gear 7 to rotate. The transmission gear 7 drives the toothed belt 71 to deflect the information screen 4 forward, and makes the rotating rod 5 drive each wiring block 51 thereon to deflect forward, so as to facilitate viewing for maintenance.

[0033] Embodiment 5, on the basis of the above embodiment, a rounded corner block 52 is arranged on the top of the wiring block 51. Corresponding rubber limiting strips 53 are fixedly connected to the inner walls of the rounded corner block 52 and the inner wall of the wire groove. The distance between the rubber limiting strips 53 is smaller than the diameter of the cable. The wire groove is in an inverted U shape and the rubber limiting strips 53 are in an arc shape at the outer edge of the top of the wire groove. A wiring terminal post groove 54 is arranged on the front side of the upper wall of the wire groove.

[0034] When connecting the cable after controlling the forward deflection of the wiring block 51, the cable is inserted through the inlet hole 11, passes in front of the wire clamping plate 2, and the wiring terminal post passes through the rear side of the rotating rod 5 from the left side of the corresponding wiring block 51. After pulling the cable upward by an appropriate distance, the cable is pressed into the wire groove, the wiring terminal post is placed into the wiring terminal post groove 54, and the cable near the top of the wire groove is pressed into the inner side of the rubber limiting strip 53, which can control the arrangement and limitation of the cable. Since the distance between the rubber limiting strips 53 is smaller than the diameter of the cable, the cable can be stably limited in the wire groove. And because the cable passes through and is close to the shaft part of the wiring block 51 and is limited thereon, rather than being limited directly by the rotating edge of the wiring block 51, when the wiring block 51 deflects, the interference on the cable is small, avoiding large-amplitude swinging of the cable and damage.

[0035] Embodiment 6, on the basis of the above embodiment, the wire pressing assembly includes an S-shaped wiring terminal cover 55 rotatably connected to the upper wall of the wiring block 51. The S-shaped wiring terminal cover 55 can seal the wiring terminal post groove 54. A resilient adjustment column 56 is slidably clamped on the upper wall of the wiring block 51. Card slots 57 are formed in the outer wall of the resilient adjustment column 56 and the inner wall of the right side of the S-shaped wiring terminal cover 55. A steel ball 58 that can be clamped with the card slot 57 is arranged between the resilient adjustment column 56 and the S-shaped wiring terminal cover 55. A chute adapted to the steel ball 58 and with a depth less than the diameter of the steel ball 58 is formed on the upper wall of the wiring block 51.

[0036] Initially, the resilient adjustment column 56 is in a normal telescopic state. The steel ball 58 is clamped in the card slot 57 on the inner wall of the S-shaped wiring terminal cover 55, while the card slot 57 on the resilient adjustment column 56 is misaligned with the steel ball 58, and there is no allowance for the movement of the steel ball 58 in the chute. Therefore, the S-shaped wiring terminal cover 55 stably seals the wiring terminal post groove 54; When it is necessary to connect a cable after the control connection block 51 deflects forward, press the elastic force adjustment column 56 to move backward, so that the card slot 57 on the elastic force adjustment column 56 is docked with the sliding groove, flip the S-shaped connection terminal cover 55 from the connection terminal column groove 54, and the steel ball 58 is automatically extruded and squeezed into the card slot 57 on the elastic force adjustment column 56. After releasing the elastic force adjustment column 56, the self-elastic force of the elastic force adjustment column 56 squeezes the steel ball 58, and the steel ball 58 thus generates a squeezing force on the inner wall of the S-shaped connection terminal cover 55. After the S-shaped connection terminal cover 55 is opened, it is automatically and stably limited, so as to facilitate the operation of connecting the cable; After the cable connection terminal column is placed in the connection terminal column groove 54, directly press the S-shaped connection terminal cover 55 to overcome the squeezing force applied by the elastic force adjustment column 56 driving the steel ball 58 to the inner wall of the S-shaped connection terminal cover 55, and the connection terminal column can be sealed. After the S-shaped connection terminal cover 55 is sealed in place, the upper and lower card slots 57 are simultaneously docked with the sliding groove, and the elastic force adjustment column 56 relies on its own elastic force to extrude the steel ball 58 to return to the initial state. The S-shaped connection terminal cover 55 cannot be opened by itself, and subsequently when the connection block 51 is reset to a vertical state, due to the gravity effect, the elastic force adjustment column 56 is even more unable to move upward, thus ensuring the reliable sealing and locking of the S-shaped connection terminal cover 55 to the connection terminal column and stable power metering.

[0037] Embodiment 7, on the basis of the above embodiment, a cable slot 21 for limiting the cable is provided on the front side of the wire clamping plate 2. The rear end of the cable slot 21 is cylindrical and is directly below the wire slot. A rubber ring 22 with a front opening is provided at the rear end of the cable slot 21. The front side of the rubber ring 22 is inclinedly connected to the inner wall of the cable slot 21 and the opening diameter is smaller than the diameter of the cable.

[0038] By controlling the cable to be pressed into the inner side of the rubber limiting strip 53 in the wire slot, and after the cable connection terminal column is fixed and sealed by the wire pressing assembly, the cable part below the connection block 51 is clamped into the cable slot 21 in the wire clamping plate 2, and the cable is pressed into the rubber ring 22 at the rear end of the cable slot 21. During this period, the inclined part on the front side of the rubber ring 22 is used, and it is easier to clamp and avoid excessive deformation or tearing of the rubber ring 22. And because the opening diameter of the rubber ring 22 is smaller than the diameter of the cable, it is difficult for the cable to easily come out after being clamped. Moreover, since the rear end of the cable slot 21 is directly below the wire slot, the cable is in a vertical state after being clamped in place, and the sorting effect is good, and the cable is not easily damaged.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric energy metering box with a modular structure, comprising a box body (1), characterized in that, On both the upper and lower sides of the right wall of the box body (1), wire inlet holes (11) are provided. On both the upper and lower sides of the rear wall of the inner cavity of the box body (1), a plurality of mounting grooves (12) are arranged. In front of the mounting grooves (12), worm gears (13) are provided. Positioning holes (14) are formed in the worm gears (13). On the lower sides of the mounting grooves (12), wire clamping plates (2) are arranged. In the mounting grooves (12), meter boxes (3) are movably inserted. On the upper side of the front wall of the meter box (3), an information screen (4) is rotatably connected. On the lower side of the front wall of the meter box (3), a plurality of rotatable wiring blocks (51) are provided. A wire groove is formed in the left wall of the wiring block (51). A wire pressing assembly for fixing the wire ends is arranged on the wiring block (51). In the left and right cavity walls of the meter box (3), missing-tooth discs (6) for adjusting the deflection of the information screen (4) and the wiring block (51) are rotatably connected. A clamping bent plate (61) is slidably clamped in the missing-tooth disc (6). A positioning column (62) that is movably clamped with the positioning hole (14) is arranged on the clamping bent plate (61). A pressing column (67) for adjusting the contraction of the clamping bent plate (61) is slidably inserted into the front wall of the meter box (3).

2. The modular-structured power metering box according to claim 1, characterized in that, On both the upper and lower sides of the right wall of the inner cavity of the box body (1), chuck plates (15) are fixedly connected. Between the chuck plates (15) and the rear wall of the inner cavity of the box body (1), a dial worm (16) is rotatably connected. A limiting arc groove corresponding to the dial worm (16) is formed in the front wall of the chuck plate (15). The worm gear (13) is rotatably connected between the left and right walls of the inner cavity of the box body (1) and is meshed with the dial worm (16).

3. The modular power metering box according to claim 2, characterized in that, The upper and lower positioning holes (14) are in a group. Each meter box (3) corresponds to two groups of positioning holes (14), and the two groups of positioning holes (14) are symmetrically arranged on both sides in front of the corresponding mounting grooves (12).

4. The modular-structured power metering box according to claim 3, characterized in that, On the front side of the wire clamping plate (2), a wire clamping groove (21) for limiting the cable is formed. The rear end of the wire clamping groove (21) is cylindrical and is directly below the wire groove. A rubber ring (22) with a front opening is arranged at the rear end of the wire clamping groove (21). The front side of the rubber ring (22) is inclinedly connected to the inner wall of the wire clamping groove (21), and the opening diameter is smaller than the cable diameter.

5. A modular-structured electric energy metering box according to claim 4, characterized in that, On the rear side of the meter box (3), an avoidance groove corresponding to the worm gear (13) is formed.

6. The modular power metering box according to claim 5, characterized in that, The clamping bent plates (61) are symmetrically arranged up and down in the toothless disc (6). The bottom of the clamping bent plate (61) has a through groove, and inclined grooves (63) are formed on both sides of the through groove. A T-shaped pin (64) that is movably clamped with the inclined groove (63) is slidably inserted into the side wall of the toothless disc (6). An elastic semi-circular ring (65) is fixedly connected to the outer end of the T-shaped pin (64). Notch straight plate rings (66) are slidably connected to the left and right side cavity walls of the meter box (3). The elastic semi-circular ring (65) is rotatably connected to the side wall of the notch straight plate ring (66), and the elastic semi-circular ring (65) is elastically connected to the side walls of the notch straight plate ring (66) and the toothless disc (6). A hinge rod (68) is movably connected between the notch straight plate ring (66) and the pressing column (67).

7. The modular power metering box according to claim 6, characterized in that, A rotating rod (5) is rotatably connected to the lower side of the front wall of the meter box (3). A wiring block (51) is linearly and fixedly sleeved on the rotating rod (5). A plurality of conductive sleeves (31) that are movably sleeved on the rotating rod (5) are fixedly connected to the front wall of the meter box (3). The conductive sleeve (31) is rotationally and electrically connected to the wiring block (51). The wiring block (51) is located on the front side of the information screen (4).

8. A modular power metering box according to claim 7, characterized in that, Drive gears (7) that are meshed with the toothless disc (6) are rotatably connected to the left and right side cavity walls of the meter box (3). Tooth belts (71) are respectively meshed and sleeved between the drive gears (7), the information screen (4), and the two rotating end portions on both sides of the rotating rod (5).

9. The modular power metering box according to claim 8, wherein, A rounded block (52) is arranged on the top of the wiring block (51). Corresponding rubber limiting strips (53) are fixedly connected to the inner walls of the rounded block (52) and the inner wall of the wire groove. The distance between the rubber limiting strips (53) is smaller than the diameter of the cable. The wire groove is in an inverted U shape, and the rubber limiting strips (53) are in an arc shape at the outer edge of the top of the wire groove. A wiring terminal column groove (54) is arranged on the front side of the upper wall of the wire groove.

10. A modular-structured power metering box according to claim 9, characterized in that, The wire pressing assembly includes an S-shaped wiring end cover (55) that is rotatably connected to the upper wall of the wiring block (51). The S-shaped wiring end cover (55) can seal the wiring terminal column groove (54). An elastic adjusting column (56) is slidably clamped on the upper wall of the wiring block (51). Card slots (57) are formed on the outer wall of the elastic adjusting column (56) and the right inner wall of the S-shaped wiring end cover (55). Steel balls (58) that can be clamped with the card slots (57) are arranged between the elastic adjusting column (56) and the S-shaped wiring end cover (55). A chute that is adapted to the steel balls (58) and has a depth smaller than the diameter of the steel balls (58) is formed on the upper wall of the wiring block (51).

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