An electricity metering box with a modular structure

Abstract

The present invention relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box with a modular structure, including a box body. There are inlet holes opened on both the upper and lower sides of the right wall of the box body. There are multiple installation grooves provided on both the upper and lower sides of the rear wall of the inner cavity of the box body. A spiral tooth rod is arranged on the front side of the installation groove. Positioning holes are opened on the spiral tooth rod. Clamping wire plates are arranged on the lower sides of the installation grooves. Meter boxes are movably inserted into the installation grooves. The present invention can drive the information screens and wiring blocks in each meter box to deflect forward synchronously at the same time to achieve rapid inspection and maintenance. When a meter box fails or is damaged alone, by pressing the pressure column, the clamping position bent plate can drive the positioning column to disengage from the positioning hole, so as to facilitate rapid repair or replacement. In addition, when the wiring block deflects, the clamping wire plate and the wire groove cooperate with the wire pressing assembly to limit the wiring, and the interference on the cable is small, avoiding the cable from swinging greatly and being damaged.

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] A modular-structured electric energy metering box 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 a faulty module and reducing repair time and costs. This structure also has a high degree of flexibility and scalability, and modules can be conveniently added or reduced 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 connection mechanism is arranged on the flipping display mechanism for wire management and simultaneously pushing the connector to be inserted. A quick-connection pop-up mechanism is arranged on the wire management connection mechanism for quickly popping out the connected wire joint. By rotating, the convex ring of the cam will gradually rotate along the back of the meter box from within 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, reducing the actions of squatting or tilting the head when the staff checks the electric meter, thereby reducing the risk of falling or getting injured caused by unstable postures, and enabling the staff to more clearly see the readings of the electric meter, facilitating the inspection of the electric meter and the wire connection situation by the staff for 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, 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, the meter box cannot be expanded and installed, 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 swing 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:

[0007] A modular structure power metering box includes a box body. Inlet holes are respectively opened on the upper and lower sides of the right wall of the box body. On the upper and lower sides of the rear wall of the inner cavity of the box body, a plurality of mounting grooves are provided. A spiral gear rod is arranged on the front side of the mounting groove. Positioning holes are opened on the spiral gear rod. Clamping plates for cables are arranged on the lower sides of the mounting grooves. A meter box is movably inserted into the mounting 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 opened on the left wall of the wiring block. A wire pressing assembly for fixing the wire ends is arranged on the wiring block.

[0008] In the left and right cavity walls of the meter box, incomplete gear disks for adjusting the deflection of the information screen and the wiring blocks are rotatably connected. A clamping bent plate is slidably clamped in the incomplete gear disk. A positioning post that is movably clamped with the positioning hole is arranged on the clamping bent plate. A pressing post for adjusting the contraction of the clamping bent plate is slidably inserted into the front wall of the meter box.

[0009] Furthermore, clamping disks are respectively fixedly connected to the 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 disk and the rear wall of the inner cavity of the box body. A limiting arc groove corresponding to the dial worm is opened on the front wall of the clamping disk. The spiral gear 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.

[0010] Furthermore, two positioning holes are in a group up and down. Each meter box corresponds to two groups of positioning holes, and the two groups of positioning holes are symmetrically arranged on the front sides of the corresponding mounting grooves.

[0011] Furthermore, a cable slot for limiting the cable is opened on the front side of the clamping plate. The rear end of the cable slot is columnar and is directly below the wire groove. A rubber ring with a front opening is arranged at the rear end of the cable slot. The front side of the rubber ring is obliquely connected to the inner wall of the cable slot, and the opening diameter is smaller than the diameter of the cable.

[0012] Furthermore, an avoidance groove corresponding to the spiral gear rod is opened on the rear side of the meter box.

[0013] 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. A notched straight plate ring is slidably connected to the left and right side wall cavities of the meter box. The elastic semi-circular ring is rotatably connected to the side wall of the notched straight plate ring, and the elastic semi-circular ring is elastically connected to the side walls of the notched straight plate ring and the toothless disc. A hinge rod is movably connected between the notched straight plate ring and the pressing column.

[0014] 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 sleeves are rotationally electrically connected to the wiring block. The wiring block is located in front of the information screen.

[0015] Further, transmission gears that mesh with the toothless disc are rotatably connected to the left and right side wall cavities of the meter box respectively. Tooth belts are respectively meshed and sleeved between the transmission gears, the information screens, and the rotating ends on both sides of the rotating rod.

[0016] 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 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.

[0017] 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.

[0018] The beneficial effects of the present invention are as follows:

[0019] 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 as to be able to drive the information screens and the wiring blocks in each meter box 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 be driven to drive the positioning column out of the positioning hole, so as to facilitate rapid repair or replacement.

[0020] The present invention uses the plug-in connection of the meter box with the installation groove and the clamping mechanism of the positioning post and the positioning hole, and sets a plurality of installation grooves in the metering box to cooperate with the spiral gear rod with positioning holes on the front side, so that the expansion installation of the meter box can be carried out as required, and the practicability is higher.

[0021] When the wiring block deflects, the wire clamping plate and the wire groove cooperate with the wire pressing assembly 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 thereon by the rotating edge of the wiring block, when the wiring block deflects, the interference on the cable is small, avoiding large swings of the cable and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structure diagram of the electric energy metering box of the present invention;

[0023] Figure 2 is a three-dimensional structure diagram of the box body part of the electric energy metering box of the present invention;

[0024] Figure 3 is a three-dimensional structure diagram of the meter box part of the electric energy metering box of the present invention;

[0025] Figure 4 is a three-dimensional section of the meter box part of the electric energy metering box of the present invention Figure 1 ;

[0026] Figure 5 is a three-dimensional section of the meter box part of the electric energy metering box of the present invention Figure 2 ;

[0027] Figure 6 is a three-dimensional structure diagram of the missing tooth disc part of the electric energy metering box of the present invention;

[0028] Figure 7 is an exploded view of the missing tooth disc and the notched straight plate ring part of the electric energy metering box of the present invention;

[0029] Figure 8 is a three-dimensional sectional view of the wire clamping plate part of the electric energy metering box of the present invention;

[0030] Figure 9 is a three-dimensional structure diagram of the wiring block part of the electric energy metering box of the present invention;

[0031] Figure 10 is a three-dimensional section of the wiring block part of the electric energy metering box of the present invention Figure 1 ;

[0032] Figure 11 is a three-dimensional section of the wiring block part of the electric energy metering box of the present invention Figure 2 。

[0033] Reference numerals: 1, box body; 11, inlet hole; 12, mounting groove; 13, spiral gear rod; 14, positioning hole; 15, chuck; 16, shifter 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 adjustment 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 manners

[0034] 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.

[0035] 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 opened 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 arranged on the front side of the mounting groove 12. A positioning hole 14 is opened on the spiral gear rod 13. Wire clamping plates 2 are arranged 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 arranged on the lower side of the front wall of the meter box 3. A wire groove is opened on the left wall of the wiring block 51. A wire pressing assembly for fixing the wire ends is arranged on the wiring block 51;

[0036] Toothless discs 6 for adjusting the deflection of the information screen 4 and the wiring blocks 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 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.

[0037] 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 electrically connected to the wiring blocks 51. The wiring blocks 51 are located in front of the information screen 4.

[0038] A relief groove corresponding to the spiral gear rod 13 is opened 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.

[0039] When installing the electric meter box 3, press the pressure column 67 on the front side, which drives the clamping plate 61 in the toothless disk 6 in the side wall cavities of the electric meter box 3 to move and contract, so as to leave 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 located between the upper and lower clamping plates 61. Cancel the pressing of 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 expanded 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 toothless disk 6 rotates. The toothless disk 6 thus 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 limited on it directly 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 swing of the cable and damage.

[0040] Embodiment 2: On the basis of the above embodiment, chuck plates 15 are fixedly connected to the upper and lower sides of the right inner wall of the box body 1. A flap worm 16 is rotatably connected between the chuck plate 15 and the rear inner wall of the box body 1. A limiting arc groove corresponding to the flap worm 16 is formed in the front wall of the chuck plate 15. The spiral tooth rod 13 is rotatably connected between the left and right inner walls of the box body 1 and meshed with the flap worm 16.

[0041] The upper and lower two positioning holes 14 are in a group. 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 the front sides of the corresponding installation grooves 12, ensuring the stable installation and connection of the electric meter box 3.

[0042] By adjusting the shifting piece worm 16, the worm gear rod 13 is driven to rotate. The worm gear 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 then drives the information screens 4 and the wiring blocks 51 in the corresponding various meter boxes 3 to deflect forward synchronously. Utilizing the property of self-locking of the transmission between the shifting piece worm 16 and the worm gear 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 inspection and maintenance from multiple angles. And the deflection of the shifting piece 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 worm gear 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.

[0043] Embodiment 3, on the basis of the above embodiment, the bottom of the clamping position 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. In the left and right side cavity walls of the meter box 3, there are slidingly connected with notch straight plate rings 66. The elastic semi-circular ring 65 is rotatably connected in the side wall of the notch straight plate ring 66, and the elastic semi-circular ring 65 is elastically connected with the side walls of the notch straight plate ring 66 and the toothless disc 6. There is a hinge rod 68 movably connected between the notch straight plate ring 66 and the pressing column 67.

[0044] When it is necessary to adjust the contraction and movement of the clamping position bent plate 61, press the pressing column 67 to drive the hinge rod 68 to squeeze the notch straight plate ring 66. The notch 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 clamping position bent plates 61 thus 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 worm gear 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;

[0045] Since the elastic semi-circular ring 65 is elastically connected with the side walls of the notch 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 position bent plate 61 after contraction and movement, and the elastic connection between the elastic semi-circular ring 65 and the side wall of the notch 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 position bent plate 61 stably in the up-and-down position. And during the subsequent installation of the meter box 3, the clamping position bent plate 61 can drive the positioning column 62 to align with the positioning hole 14 on the worm gear rod 13 and perform clamping.

[0046] Embodiment 4. On the basis of the above embodiment, drive gears 7 meshing with the toothless disc 6 are rotatably connected to the left and right cavity walls of the meter box 3. Tooth belts 71 are respectively meshingly sleeved between the drive gears 7, the information screen 4, and the rotating ends on both sides of the rotating rod 5.

[0047] When controlling the rotation of the spiral tooth rod 13, the spiral tooth 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 drive gear 7 to rotate. The drive gear 7 drives the tooth belt 71 to deflect the information screen 4 forward, and enables the rotating rod 5 to drive each wiring block 51 thereon to deflect forward, so as to facilitate viewing for maintenance.

[0048] Embodiment 5. On the basis of the above embodiment, a rounded corner block 52 is provided 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 provided on the front side of the upper wall of the wire groove.

[0049] 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. The arrangement 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.

[0050] 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. An elastic adjusting column 56 is slidably clamped on the upper wall of the wiring block 51. Card slots 57 are provided on the outer wall of the elastic adjusting column 56 and the inner wall on the right side of the S-shaped wiring terminal cover 55. Steel balls 58 capable of being clamped with the card slots 57 are provided between the elastic adjusting column 56 and the S-shaped wiring terminal cover 55. A chute adapted to the steel balls 58 and with a depth less than the diameter of the steel balls 58 is provided on the upper wall of the wiring block 51.

[0051] The initial elastic force adjusting column 56 is in a normal telescopic state. The steel ball 58 is clamped in the clamping groove 57 on the inner wall of the S-shaped wiring terminal cover 55, while the clamping groove 57 on the elastic force adjusting column 56 is misaligned with the steel ball 58, and there is no remaining space for the steel ball 58 to move in the sliding groove. Therefore, the S-shaped wiring terminal cover 55 stably seals the wiring terminal column groove 54;

[0052] When it is necessary to connect a cable after the control wiring block 51 deflects forward, press the elastic force adjusting column 56 to move backward, so that the clamping groove 57 on the elastic force adjusting column 56 is docked with the sliding groove, and the S-shaped wiring terminal cover 55 is opened from the wiring terminal column groove 54. The steel ball 58 is automatically extruded and squeezed into the clamping groove 57 on the elastic force adjusting column 56. After releasing the elastic force adjusting column 56, the self-elastic force of the elastic force adjusting 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 wiring terminal cover 55. After the S-shaped wiring terminal cover 55 is opened, it is automatically and stably limited, so as to facilitate the operation of connecting the cable;

[0053] After the cable wiring terminal is placed in the wiring terminal column groove 54, directly press the S-shaped wiring terminal cover 55 to overcome the squeezing force exerted on the inner wall of the S-shaped wiring terminal cover 55 by the elastic force adjusting column 56 driving the steel ball 58, and the wiring terminal can be sealed. After the S-shaped wiring terminal cover 55 is sealed in place, the upper and lower clamping grooves 57 are simultaneously docked with the sliding groove, and the elastic force adjusting column 56 relies on its own elastic force to extrude the steel ball 58 to return to the initial state. The S-shaped wiring terminal cover 55 cannot be opened by itself, and subsequently, when the wiring block 51 resets to a vertical state, due to the gravity effect, the elastic force adjusting column 56 is even more unable to move upward, thus ensuring the reliable sealing and locking of the S-shaped wiring terminal cover 55 to the wiring terminal column and stable power metering.

[0054] 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 columnar and is directly below the wire guiding 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.

[0055] By controlling the cable to be pressed into the inner side of the rubber limiting strip 53 in the wire guiding slot, and after the wire connection end column is fixed and sealed by the wire pressing assembly, the cable part below the wiring 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, by using the inclined part on the front side of the rubber ring 22, it is easier to clamp and avoid excessive deformation or tearing of the rubber ring 22. Moreover, since 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. Furthermore, since the rear end of the cable slot 21 is directly below the wire guiding 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.

[0056] The foregoing 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 readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to 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 provided. In front of the mounting grooves (12), worm gears (13) are provided. Positioning holes (14) are provided on the worm gears (13). On the lower sides of the mounting grooves (12), wire clamping plates (2) are provided. 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. On the left wall of the wiring block (51), a wire groove is provided. On the wiring block (51), a wire pressing assembly for fixing the wire ends is provided; 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. In the missing tooth disc (6), a clamping position bent plate (61) is slidably clamped. The clamping position bent plates (61) are symmetrically arranged up and down in the missing tooth disc (6). On the clamping position bent plate (61), a positioning column (62) that is movably clamped with the positioning hole (14) is provided. The bottom of the clamping position bent plate (61) has a through groove and inclined grooves (63) are provided on both sides of the through groove. A T-shaped pin column (64) that is movably clamped with the inclined groove (63) is slidably inserted into the side wall of the missing tooth disc (6). The outer end of the T-shaped pin column (64) is fixedly connected with an elastic semi-circular ring (65). In the left and right cavity walls of the meter box (3), a notched straight plate ring (66) is slidably connected. The elastic semi-circular ring (65) is rotatably connected in the side wall of the notched straight plate ring (66), and the elastic semi-circular ring (65) is elastically connected to the side walls of the notched straight plate ring (66) and the missing tooth disc (6). A pressing column (67) for adjusting the contraction of the clamping position bent plate (61) is slidably inserted into the front wall of the meter box (3). A hinge rod (68) is movably connected between the notched straight plate ring (66) and the pressing column (67).

2. The modular 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 flap worm (16) is rotatably connected. On the front wall of the chuck plate (15), a limiting arc groove corresponding to the flap worm (16) is provided. 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 flap 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. A modular 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 provided. The rear end of the wire clamping groove (21) is cylindrical and is directly below the wire groove. At the rear end of the wire clamping groove (21), a rubber ring (22) with a front opening is provided. 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 power metering box with a modular structure according to claim 4, characterized in that, A clearance slot corresponding to the spiral gear rod (13) is formed at the rear side of the meter box (3).

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

7. The modular power metering box according to claim 6, wherein Drive gears (7) meshing with the toothless disc (6) are rotatably connected to the left and right cavity walls of the meter box (3). Tooth belts (71) are respectively meshingly sleeved between the two rotating end parts on both sides of the drive gear (7), the information screen (4), and the rotating rod (5).

8. A power metering box with a modular structure according to claim 7, characterized in that, A rounded corner block (52) is arranged at the top of the wiring block (51). Corresponding rubber limit 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 limit strips (53) is smaller than the diameter of the cable. The wire groove is in an inverted U shape, and the rubber limit strip (53) is in an arc shape at the outer edge of the top of the wire groove. A wiring terminal post groove (54) is arranged at the front side of the upper wall of the wire groove.

9. A modular power metering box according to claim 8, characterized in that, The wire pressing assembly includes an S-shaped wiring end cover (55) rotatably connected to the upper wall of the wiring block (51). The S-shaped wiring end cover (55) can seal the wiring terminal post groove (54). An elastic force adjusting column (56) is slidably clamped on the upper wall of the wiring block (51). Claw slots (57) are formed in the outer wall of the elastic force adjusting column (56) and the right inner wall of the S-shaped wiring end cover (55). A steel ball (58) capable of being clamped with the claw slot (57) is arranged between the elastic force adjusting column (56) and the S-shaped wiring end cover (55). A sliding groove adapted to the steel ball (58) and with a depth smaller than the diameter of the steel ball (58) is formed in the upper wall of the wiring block (51).

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