A low-voltage cabinet rotating movable metering box

Abstract

The present invention discloses a rotating movable meter box for a low-voltage cabinet, relating to the technical field of electric energy metering devices for low-voltage cabinets. The meter box mechanism comprises a meter box assembly for mounting an electric meter, the meter box mechanism being mounted within the low-voltage cabinet housing. The meter box assembly comprises a meter box component, the meter box component comprising a meter box body located within the low-voltage cabinet housing, first mounting grooves being respectively provided in the two side walls of the meter box body, first mounting holes being respectively provided in the two side walls of the meter box body, the first mounting grooves and corresponding first mounting holes being connected to form an mounting cavity, a cooling unit and an ash filter unit being mounted in the mounting cavity, an air gathering unit being provided on the outer side wall of the ash filter unit, an air gathering cavity being formed between the air gathering unit and the ash filter unit, and a guide plate being fixedly connected to the top of the meter box body. The present invention not only solves the overall layout and management issues of the low-voltage cabinet and meter box, but also solves the heat dissipation and dust prevention issues of the meter box.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage cabinet electric energy metering devices, and in particular to a rotary movable metering box for a low-voltage cabinet. Background Art

[0002] Traditional meter boxes and low-voltage cabinets are usually installed independently in different locations, resulting in a dispersed overall layout of the low-voltage cabinets and meter boxes. This not only takes up more space but is also not conducive to the centralized management and monitoring of the power system. In some distribution rooms with limited space, this layout will lead to inefficient space utilization and bring difficulties to the arrangement and management of equipment. When installing, maintaining or repairing the meter, the staff need to operate back and forth between the two separate devices, and the operating space is often very cramped. For example, when the meter needs to be replaced, due to space limitations, the tools cannot be used, which increases the difficulty of operation, prolongs the power outage time, affects the stability of the power supply, brings inconvenience to users, and increases the cost of power operation and maintenance.

[0003] The patent with announcement number CN202854190U discloses a low-voltage cabinet rotating movable meter box. Its meter box lacks a heat dissipation design. The meter will continue to generate heat during operation. If this heat cannot be dissipated in time, it will accumulate in the box, causing the temperature inside the box to rise. Excessive temperature will affect the performance of the electronic components inside the meter, thereby reducing the metering accuracy of the meter. Long-term exposure to high temperature will also shorten the service life of the meter, increase equipment replacement costs, and affect the accuracy and reliability of electricity metering.

[0004] In addition, the meter box of this patent lacks dust-proof measures and is difficult to effectively prevent dust from entering. Once dust enters the meter box, it will adhere to the surface and internal components of the meter, which may cause circuit short circuits, poor contact and other problems, affecting the normal operation of the meter, increasing the frequency of faults, and reducing the stability and safety of the power system operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a low-voltage cabinet rotary movable meter box, which not only solves the overall layout and management problems of the low-voltage cabinet and the meter box, but also solves the heat dissipation and dustproof problems of the meter box.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions: a low-voltage cabinet rotating movable meter box, including a meter box mechanism for installing an electric meter, the meter box mechanism is installed in the low-voltage cabinet case, wherein the meter box mechanism includes a meter box assembly installed in the low-voltage cabinet case, the meter box assembly includes a meter box component, the meter box component includes a meter box body located inside the low-voltage cabinet case, first mounting grooves are respectively provided in both side walls of the meter box body, first mounting holes are respectively opened on both side walls of the meter box body, the first mounting grooves and the corresponding first mounting holes are connected to form an installation cavity, a cooling unit and an ash filter unit that fit together are installed in the installation cavity, an air gathering unit is provided on the outer side wall of the ash filter unit, an air gathering cavity is formed between the air gathering unit and the ash filter unit, and a guide plate is fixedly connected to the top of the meter box body.

[0007] Preferably, the guide plate is located above the top wall of the metering box body, and a plurality of waist-shaped heat dissipation holes are opened on the top wall of the metering box body.

[0008] Preferably, the cooling unit includes a cooling plate inserted into the installation cavity, and a plurality of cooling holes are opened on the cooling plate. The diameter of the port of the cooling hole close to the side of the ash filter unit decreases successively toward the other port. A guide groove is opened on the side of the ash filter unit between adjacent cooling holes, and the inner wall of the cooling plate and the inner wall of the metering box are in the same horizontal plane.

[0009] Preferably, the ash filter unit includes an ash filter plate inserted into the installation cavity and attached to the outer wall of the cooling plate. The outer wall of the ash filter plate is provided with an installation slot, which is used for the subsequent installation of the wind gathering unit.

[0010] Preferably, the wind gathering unit is composed of a wind gathering plate inserted into the installation slot of the ash filter plate, and a plurality of wind gathering holes are opened on the outer wall of the wind gathering plate. An wind gathering pipe is fixedly connected to the wind gathering holes, and the diameter of the outer end port of the wind gathering pipe decreases successively toward the other port.

[0011] The lockhole that is formed on the two ends of the support frame is formed on the upper surface of the support frame, and the lockhole that is formed on the two ends of the support frame is formed.

[0012] The cam is fixedly mounted on the drive means and is adapted to engage said pivotal element of the wheel assembly and to engage said guide rail for movement of the wheel assembly so as to allow the wheel assembly to move relative to said guide rail.

[0013] Preferably, the guide plate is arranged in an inclined shape, the height of the free end of the guide plate from the top of the metering box decreases gradually toward the other end, and the free end is in a flange shape.

[0014] Preferably, a mounting frame assembly is also installed in the metering box assembly, and the mounting frame assembly includes a pair of symmetrically arranged heat conducting plates, a mounting plate is fixedly connected between the two heat conducting plates, and both ends of the heat conducting plates and the mounting plates are commonly fixedly connected with guide plates, the guide plates are fitted with the inner wall of the cooling plate, a pair of fixed plates are fixedly connected to the guide plates, and the fixed plates are fixedly connected to the metering box body by bolts, and a plurality of heat sinks are fixedly connected in the mounting plate.

[0015] Preferably, a cooling chamber is formed between the heat conduction plate and the inner wall of the metering box, the mounting plate and the guide plate are both convexly arranged, a pair of positioning grooves are provided on the mounting plate, the guide plate is curved and both ends are in contact with the inner wall of the metering box.

[0016] Compared with the prior art, the beneficial effect of the present invention is that: the present invention integrates the meter box mechanism into the low-voltage cabinet body, and realizes the rotation function through the cooperation of the rotating parts and the meter box parts, which not only optimizes the spatial layout, reduces space occupancy, and improves space utilization efficiency, but also facilitates the centralized management and monitoring of the power system. The staff can more conveniently manage and maintain the equipment in a unified manner. The staff can approach more easily during the operation, the operation is no longer restricted by space, the tools can be used freely, the operation time is greatly shortened, the work and management efficiency is improved, the power outage duration is reduced, and the power operation and maintenance costs are reduced.

[0017] The present invention provides a meter box component and a mounting frame assembly, which not only facilitates the installation of the electric meter, but also facilitates the rise and guidance of hot air to enhance heat dissipation. It also improves the heat dissipation efficiency of the inside of the meter box and the electric meter by accelerating air circulation and flow rate, guiding the uniform distribution of air, and conducting heat, thereby ensuring stable operation of the electric meter, improving metering accuracy, and extending service life. It also enhances the dustproof effect, blocks dust from entering, makes it difficult for dust to adhere to the inside of the meter box and the electric meter, keeps the operating environment of the electric meter clean, reduces the occurrence of faults, and ensures stable operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0019] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0020] Figure 3 It is an enlarged three-dimensional structural diagram of the meter box assembly and the mounting frame assembly;

[0021] Figure 4 for Figure 3 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0022] Figure 5 for Figure 3 Schematic diagram of some three-dimensional structures;

[0023] Figure 6 for Figure 5 Schematic diagram of the partial cross-section three-dimensional structure;

[0024] Figure 7 for Figure 6 The enlarged three-dimensional structure diagram at B in the middle;

[0025] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the rotating movable part;

[0026] Figure 9 Schematic diagram of the three-dimensional structure of the wind gathering unit;

[0027] Figure 10 Schematic diagram of the three-dimensional structure of the ash filter unit;

[0028] Figure 11 for Figure 10 Schematic diagram of the second perspective stereoscopic structure;

[0029] Figure 12 Schematic diagram of the three-dimensional structure of the cooling unit;

[0030] Figure 13 for Figure 12 A schematic diagram of a cutaway three-dimensional structure from a second viewing angle;

[0031] Figure 14 This is a schematic diagram of the three-dimensional structure of the mounting frame assembly from a first-person perspective;

[0032] Figure 15 for Figure 14 Schematic diagram of the second perspective stereoscopic structure;

[0033] Figure 16 This is an enlarged three-dimensional structural diagram of the metering box, the first mounting hole and the first mounting slot;

[0034] Figure 17 This is an enlarged schematic diagram of the three-dimensional structure of the rotating component.

[0035] The numbers in the figure represent:

[0036] 1. Low-voltage cabinet body; 2. Metering box mechanism; 3. Metering box assembly; 4. Rotating parts; 41. Box body; 42. Disengagement slot; 43. Positioning slot; 44. Limiting slot; 45. L-shaped plate; 46. First convex block; 47. Rotating movable part; 471. Slider; 472. Connecting rod; 473. Cylinder; 474. Fixed disc; 475. Spring; 476. Positioning ball; 477. Fixed block; 478. Universal ball; 479. Limiting rod; 48. Connecting plate; 5. Metering box components; 51. Metering Box body; 52. First mounting hole; 53. First mounting slot; 54. Cooling unit; 541. Cooling plate; 542. Cooling hole; 543. Guide slot; 55. Ash filter unit; 551. Ash filter plate; 552. Ash filter hole; 56. Wind gathering unit; 561. Wind gathering plate; 562. Wind gathering hole; 563. Wind gathering duct; 57. Wind gathering cavity; 58. Heat dissipation waist-shaped hole; 59. Guide plate; 6. Mounting frame assembly; 61. Heat conduction plate; 62. Mounting plate; 63. Guide plate; 64. Fixing plate; 65. Heat sink. DETAILED DESCRIPTION

[0037] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0038] Example 1: This example provides a technical solution: a low-voltage cabinet rotary movable meter box, such as Figure 1-17 As shown, it includes a meter box mechanism 2 for installing an electric meter (note: used in a natural environment). The meter box mechanism 2 is installed in a low-voltage cabinet body 1 (the low-voltage cabinet body 1 is the existing technology, and some parts of the low-voltage cabinet body 1 are not shown in the figure, such as the cooling fan). The meter box mechanism 2 includes a meter box assembly 3 installed in the low-voltage cabinet body 1, and the meter box assembly 3 includes a meter box component 5.

[0039] like Figures 3 to 6 、 Figures 9 to 13 as well as Figure 16 As shown, the metering box component 5 includes a metering box 51 located inside the low-voltage cabinet box 1, and first mounting grooves 53 are respectively provided in the two side walls of the metering box 51, and first mounting holes 52 are respectively opened on the two side walls of the metering box 51. The first mounting grooves 53 and the corresponding first mounting holes 52 are connected to form an installation cavity, and a cooling unit 54 and an ash filter unit 55 that fit each other are installed in the installation cavity. An air gathering unit 56 is provided on the outer side wall of the ash filter unit 55, and an air gathering cavity 57 is formed between the air gathering unit 56 and the ash filter unit 55. A guide plate 59 is fixedly connected to the top of the metering box 51, and the guide plate 59 is located above the top wall of the metering box 51, and a plurality of heat dissipation waist-shaped holes 58 are opened on the top wall of the metering box 51.

[0040] The metering box 51 serves as the core bearing component, and its installation cavity provides installation space for the cooling unit 54 and the ash filter unit 55. The cooling unit 54 and the ash filter unit 55 fit together. The cooling unit 54 is responsible for reducing the temperature internally, and the ash filter unit 55 blocks dust on the outside. The two work together to create a suitable operating environment for the electricity meter. The wind gathering unit 56 cooperates with the ash filter unit 55. The wind gathering unit 56 gathers external air into the wind gathering cavity 57 through the wind gathering effect, accelerating the air flow. On the one hand, it helps the ash filter unit 55 to better filter dust. On the other hand, it enhances the heat dissipation effect of the cooling unit 54 and increases the heat dissipation area. The guide plate 59 is fixedly connected to the top of the metering box 51. The heat generated by the electricity meter is conducted to the guide plate 59 through the heat dissipation waist-shaped hole 58, so that the heat can be guided and can be dissipated to the outside more quickly, further improving the heat dissipation performance.

[0041] The cooling unit 54 is mainly composed of a cooling plate 541 inserted into the installation cavity. A plurality of cooling holes 542 are opened on the cooling plate 541. The port diameters of these cooling holes 542 close to the ash filter unit 55 decrease successively toward the other port. A guide groove 543 is opened between adjacent cooling holes 542 on the side of the ash filter unit 55, and the inner wall of the cooling plate 541 and the inner wall of the metering box 51 are in the same horizontal plane.

[0042] The cooling plate 541 is inserted into the installation cavity and cooperates closely with the dust filter unit 55 to ensure the stability of the installation. The special aperture design of the cooling hole 542 accelerates the air flow rate when passing through the cooling hole 542, forming a high-speed airflow, which can more effectively take away heat. The guide groove 543 guides the air to flow on the surface of the cooling plate 541, so that the air can contact the cooling plate 541 more evenly, thereby improving the heat dissipation efficiency. The inner wall of the cooling plate 541 and the inner wall of the metering box 51 are at the same horizontal plane, ensuring the flatness of the internal space of the metering box 51, avoiding dead corners of airflow, and being beneficial to the overall circulation of air in the box, thereby enhancing the heat dissipation effect.

[0043] The ash filter unit 55 includes an ash filter plate 551 inserted into the installation cavity and attached to the outer wall of the cooling plate 541 . The outer wall of the ash filter plate 551 is provided with an installation slot for the subsequent installation of the air gathering unit 56 .

[0044] The ash filter plate 551 is inserted into the installation cavity and fits the cooling plate 541. This tight fit enables the ash filter unit 55 to effectively prevent dust from entering the cooling unit 54 and the metering box 51, protecting the electric meter from dust. The installation slot on the outer wall of the ash filter plate 551 provides a precise installation position for the wind gathering unit 56, ensuring that the wind gathering unit 56 and the ash filter unit 55 fit closely together. The airflow generated by the wind gathering unit 56 can pass through the ash filter plate 551 smoothly, achieving better dust prevention and auxiliary heat dissipation functions.

[0045] The wind gathering unit 56 consists of a wind gathering plate 561 inserted into the installation slot of the dust filter plate 551. The outer wall of the wind gathering plate 561 is provided with a plurality of wind gathering holes 562. The wind gathering holes 562 are fixedly connected with a wind gathering pipe 563. The diameter of the outer end port of the wind gathering pipe 563 decreases successively toward the other port.

[0046] The wind collecting plate 561 is inserted into the installation slot of the dust filter plate 551, realizing a close connection between the two. The combined design of the wind collecting hole 562 and the wind collecting pipe 563 enables the outside air to pass through the wind collecting pipe 563. As the pipe diameter gradually becomes smaller, the air flow rate is accelerated, forming a high-speed wind collecting airflow into the wind collecting cavity 57. These high-speed airflows can enhance the air flow on the surface of the dust filter unit 55, help the dust filter plate 551 to better absorb and block dust, and at the same time accelerate the air circulation around the cooling unit 54 to improve the heat dissipation effect.

[0047] Embodiment 2: Based on embodiment 1, this embodiment further has the following structure: the guide plate 59 is arranged in an inclined shape, the height of the free end of the guide plate 59 from the top of the metering box 51 decreases gradually toward the other end, and the free end is in a flange shape.

[0048] The inclined guide plate 59 is fixedly connected to the top of the metering box 51. It utilizes the principle of rising hot air, which is more conducive to the heat flowing upward along the inclined surface under the action of natural convection, thereby accelerating heat dissipation. The flange design at the end not only increases the structural strength of the guide plate 59 and prevents it from deforming during long-term use, but also blocks the disorderly loss of heat at the edge, allowing the heat to be dissipated more concentratedly through the heat dissipation waist-shaped holes 58, thereby improving the heat dissipation efficiency.

[0049] Embodiment 3: This embodiment further has the following structure based on embodiment 1 or 2: Figures 3 to 8 、 Figure 17 As shown, the metering box assembly 3 also includes a pair of rotating parts 4, and the metering box part 5 is installed between the pair of rotating parts 4. The two inner walls of the low-voltage cabinet body 1 are respectively fixedly connected with box bodies 41, and the two box bodies 41 are symmetrically arranged. The two box bodies 41 are fixedly connected to the low-voltage cabinet body 1 through a connecting plate 48. The box body 41 is provided with a disengagement groove 42 at one end near the cabinet door of the low-voltage cabinet body 1 in the longitudinal direction, and the box body 41 is provided with a retaining wall adjacent to the corresponding disengagement groove 42 in the transverse direction at one end near the cabinet door of the low-voltage cabinet body 1 in the longitudinal direction. The top and bottom walls inside the box body 41 are provided with a plurality of positioning grooves 43 distributed in a longitudinal array, among which the inner top wall and bottom wall of the box body 41 on the left side near the cabinet door end are also provided with a symmetrical pair of limiting grooves 44, and the inner top wall and bottom of the inner opening of the box body 41 are fixedly connected with an L-shaped plate 45. A pair of L A convex sliding cavity is formed between the shaped plates 45, and the convex sliding cavity and the inner cavity of the box body 41 constitute a sliding groove. The first convex block 46 and the corresponding rotating component 4 are slidingly connected in the sliding groove. The rotating component 4 includes a rotating movable component 47, and the rotating movable component 47 is connected to the metering box body 51. The first convex block 46 is fixedly connected to the metering box body 51.

[0050] The pair of box bodies 41 are fixedly connected to the inner wall of the low-voltage cabinet body 1 through the connecting plate 48, providing a stable support structure for the rotating component 4. The disengagement groove 42 is provided to facilitate the left rotating movable component 47 to move to the corresponding disengagement groove 42. The left rotating movable component 47 can partially disengage from its disengagement groove 42, and when the right rotating movable component 47 moves to the corresponding disengagement groove 42, it can disengage from the corresponding disengagement groove 42 due to the lack of the limiting groove 44, and further disengage from the box body 41. The positioning groove 43 cooperates with the positioning ball 476 in the rotating movable component 47 to play a positioning role during the movement, ensuring that the metering box component 5 can accurately stay in a specific position after each movement. Specifically, the aperture of the limiting groove 44 is larger than the aperture of the positioning groove 43. The role of the limiting groove 44 is to cooperate with the relevant structure in the rotating movable component 47 to limit the excessive movement of the rotating movable component 47, and at the same time limit its rotation angle range to prevent it from excessive movement and rotation causing falling off. The convex sliding cavity formed by the shaped plate 45 and the sliding groove formed by the inner cavity of the box body 41 provide a sliding track for the first convex block 46 and the rotating movable part 47, so that they can slide smoothly in the groove, thereby realizing the smooth rotation of the metering box body 51. The connection between the first convex block 46 and the rotating movable part 47 and the metering box body 51 ensures that the metering box body 51 can rotate synchronously with the rotating part 4 during the rotation process.

[0051] The rotating movable part 47 includes a slider 471, which is slidably connected to the cavity of the box body 41. The outer end of the slider 471 is fixedly connected to a connecting rod 472 and a cylinder 473 in sequence. The middle part of the cylinder 473 is fixedly connected to a fixed disc 474. The two ends of the fixed disc 474 are fixedly connected to a spring 475 and a positioning ball 476 in sequence. The positioning ball 476 is suitable for fitting into the positioning groove 43. A universal ball groove is provided at the inner end of the slider 471, and a universal ball 478 is provided in the universal ball groove. The universal ball 478 is fixedly connected to a fixed block 477 located on the inner side of the slider 471. The fixed block 477 is fixedly connected to the metering box 51 and is matched with the corresponding convex sliding cavity to slide in the convex sliding cavity. The top and bottom of the fixed block 477 are fixedly connected to a limit rod 479. The limit rod 479 consists of a bent rod fixed on the fixed block 477 and a limit ball at the other end of the bent rod. The limit ball is located in the limit circular groove provided at the inner end of the slider 471.

[0052] In this embodiment, the limiting groove 44 is suitable for cooperating with the corresponding positioning ball 476 to limit the longitudinal movement of the positioning ball 476; the retaining wall is suitable for abutting and cooperating with the corresponding cylinder 473; the rotating movable part 47 on the left is suitable for partially disengaging from the corresponding disengagement groove 42 or entering the corresponding box body 41, and the rotating movable part 47 on the right is suitable for disengaging from the corresponding disengagement groove 42 or entering the corresponding box body 41.

[0053] The slider 471 slides in the cavity of the box body 41, providing basic sliding support for the overall movement of the rotating movable part 47. The connecting rod 472 and the cylinder 473 transmit the movement of the slider 471 to the positioning ball 476, the spring 475 and the fixed disc 474 to ensure the stability of the structure. The spring 475 and the positioning ball 476 cooperate with the positioning groove 43. The spring 475 provides a certain elastic force so that the positioning ball 476 can fit tightly into the positioning groove 43, playing a role of precise positioning and buffering. The cooperation between the universal ball 478 and the fixed block 477 in the rotating movable part 47 on the left side enables the metering box 51 to flexibly adjust the angle according to actual conditions during the rotation process, avoiding stress concentration caused by rigid connection. The limiting rod 479 cooperates with the limiting circular groove at the inner end of the slider 471 to limit the sliding range of the fixed block 477, thereby preventing the slider 471 from excessive sliding and ensuring the movement safety and stability of the rotating movable part 47.

[0054] Specifically, in the cooperation between the metering box component 5 and the rotating component 4, the metering box body 51 is pulled out from the deep of the low-voltage cabinet body 1 at a uniform speed to the vicinity of the cabinet door. At this time, the fixed block 477 of the rotating movable component 47 slides in the convex sliding cavity, and the fixed block 477 drives the slider 471 to move along the sliding groove of the box body 41 toward the cabinet door under the cooperation of the limiting rod 479 and the limiting circular groove. As the slider 471 moves, the connecting rod 472 drives the cylinder 473 to move. After the metering box body 51 is pulled to the front position, the positioning ball 476 in the cylinder 473 compresses the spring 475 under the action of tension, and gradually disengages from the positioning groove 43 on the inner wall of the box body 41, releasing the angle fixing state. Since the universal ball 478 allows a small angle adjustment between the fixed block 477 and the slider 471, the metering box body 51 It can be swung slightly. During the pulling process, the first convex block 46 will first slide in the sliding groove, and then disengage from the disengagement groove 42. With continuous pulling, the cylinder 473 will contact the end retaining wall of the box body 41. In addition to contacting the end retaining wall of the box body 41, the positioning ball 476 arranged therein will also move into the limiting groove 44. The spring 475 will rebound synchronously, causing the positioning ball 476 to penetrate into the limiting groove 44. With a "click" sound, it is confirmed that the limiting groove 44 and the positioning ball 476 on the left side are mutually restricted. At the same time, the slider 471 The right side of the movable part 47 is moved to the left, and the fixed block 477 is also disengaged from the corresponding disengagement groove 42. After that, the rotating movable part 47 on the right is confirmed, and the metering box 51 connected to it is pulled toward the operator. Since the cylinder 473 in the rotating movable part 47 on the right contacts the retaining wall at the end of the corresponding box body 41, continuous pulling will cause the universal ball 478 on the right to rotate in the universal ball groove, and the limiting ball rotates in the limiting circular groove, which will cause the slider 471 on the right to swing in the opposite direction, forming an angle with the fixed block 477. In this process, the slider 471, connecting rod 472 and cylinder 473 on the right will be displaced and disengaged from the disengagement groove 42, and the positioning ball 476 on the left will rotate in the limiting groove 44, and continue to pull the metering box 51. When rotating, the connecting rod 472 provided in the rotating movable part 47 on the left will conflict with the corresponding retaining wall of the box body 41, thereby limiting the slider 471 provided therein, and the universal ball 478 on the left rotates in the universal ball groove, and the limiting ball rotates in the limiting circular groove, and an angle is formed between the slider 471 and the fixed block 477, further allowing the metering box body 51 to move out from the inside of the low-voltage cabinet body 1 and form an angle, thereby realizing the rotation function of the metering box component, facilitating the maintenance of the components inside it. After the maintenance is completed, the metering box body 51 is pushed to rotate toward the inside of the low-voltage cabinet body 1, thereby causing the universal ball 478 in the rotating movable part 47 on the left to rotate in the universal ball groove, and the limiting ball rotates in the limiting circular groove.When the rotating movable part 47 on the right side enters the box body 41 through the disengagement groove 42, it pushes the sliders 471 on both sides of the metering box body 51 and the connection between the fixed block 477, which will cause the universal ball 478 to rotate in the universal ball groove, and the limiting ball rotates in the limiting circular groove, smoothing the angle between the smooth block 471 and the fixed block 477 and then stopping the push, which will cause the cylinder 473 to return to its original position, and then push it backward longitudinally, which will cause the positioning ball 476 on the left side to move out of the limiting groove 44, and further cause the fixed block 477 to enter the convex sliding cavity, so that the metering box body 51 can penetrate deep into the low-voltage cabinet body 1 and be pushed to the appropriate position. With a "click" sound, the positioning ball 476 enters the positioning groove 43, and also causes the first convex block 46 to enter the sliding groove, so that the metering box body 51 cannot move on its own inside the low-voltage cabinet body 1.

[0055] Example 4: This example further has the following structure based on Example 3: Figure 3 、 Figure 5 、 Figure 14 and Figure 15 As shown, a mounting frame assembly 6 is also installed in the metering box assembly 3, and the mounting frame assembly 6 includes a pair of symmetrically arranged heat conducting plates 61, and a mounting plate 62 is fixedly connected between the two heat conducting plates 61, and both ends of the heat conducting plates 61 and the mounting plates 62 are commonly fixedly connected with a guide plate 63, and the guide plate 63 is fitted with the inner wall of the cooling plate 541, and a pair of fixed plates 64 are fixedly connected to the guide plate 63, and the fixed plate 64 is fixedly connected to the metering box body 51 by bolts, and a plurality of heat sinks 65 are fixedly connected in the mounting plate 62.

[0056] In this embodiment, the low-voltage cabinet body 1 provides installation space and a protective shell for the entire meter box mechanism 2. The meter box assembly 3 serves as the intermediate connecting part. On the one hand, it realizes a rotatable connection with the low-voltage cabinet body 1 through the rotating part 4. On the other hand, it carries the mounting frame assembly 6, so that the electric meter has a stable installation foundation. The rotating part 4 and the meter box component 5 cooperate with each other. When the electric meter needs to be installed, maintained or repaired, the rotating part 4 can drive the meter box component 5 to rotate around a specific axis, and turn out the meter box component 5 originally located deep inside the low-voltage cabinet, making it convenient for the operator to approach, greatly improving the convenience of operation. The mounting frame assembly 6 is tightly installed in the meter box assembly 3, providing a stable installation position for the electric meter, ensuring that the electric meter will not shake or displace during operation, and ensuring the accuracy of measurement.

[0057] A pair of heat conducting plates 61 and mounting plates 62 form a stable frame structure, providing an installation base for the heat sink 65. At the same time, the heat conducting plates 61 can conduct the heat generated by the electric meter. The heat sink 65 increases the heat dissipation area and improves the heat dissipation efficiency. The guide plate 63 fits the inner wall of the cooling plate 541, guiding the air to flow between the mounting frame assembly 6 and the cooling unit 54, so that the air can better contact the heat sink 65 and the cooling plate 541, thereby enhancing the heat dissipation effect. The fixing plate 64 is fixedly connected to the metering box 51 by bolts, ensuring that the mounting frame assembly 6 is firmly connected to the metering box 51 to prevent loosening during use.

[0058] A cooling chamber is formed between the heat conducting plate 61 and the inner wall of the metering box 51 . The mounting plate 62 and the guide plate 63 are both convexly arranged. A pair of positioning grooves are provided on the mounting plate 62 . The guide plate 63 is curved and its two ends are in contact with the inner wall of the metering box 51 .

[0059] The cooling chamber formed by the heat conducting plate 61 and the inner wall of the metering box 51 increases the space for air circulation and further improves the heat dissipation capacity. The convex mounting plate 62 and the guide plate 63 design change the air flow path, so that the air can more fully contact the heat sink 65 and the cooling plate 541 during the flow process, thereby improving the heat dissipation efficiency. The positioning groove on the mounting plate 62 is used to fix the electric meter to ensure that the electric meter is firmly installed to prevent it from shaking during operation. The two ends of the curved guide plate 63 fit with the inner wall of the metering box 51, optimizing the boundary conditions of the air flow, so that the air can circulate more smoothly in the metering box, and enhance the overall heat dissipation and diversion effects.

[0060] The above are only preferred embodiments of the present invention and are merely illustrative, not restrictive, of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the embodiments within the spirit and scope of the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A low-voltage cabinet rotary movable metering box, characterized in that: The utility model comprises a meter box mechanism for installing an electric meter, wherein the meter box mechanism is installed in a low-voltage cabinet box; wherein the meter box mechanism comprises a meter box assembly installed in the low-voltage cabinet box, the meter box assembly comprises a meter box component, the meter box component comprises a meter box body located inside the low-voltage cabinet box, first mounting grooves are respectively provided in both side walls of the meter box body, first mounting holes are respectively opened on both side walls of the meter box body, the first mounting grooves and the corresponding first mounting holes are connected to form a mounting cavity, a cooling unit and an ash filter unit that fit together are installed in the mounting cavity, an air gathering unit is provided on the outer side wall of the ash filter unit, an air gathering cavity is formed between the air gathering unit and the ash filter unit, and a guide plate is fixedly connected to the top of the meter box body; The guide plate is located above the top wall of the metering box, and a plurality of heat dissipation waist-shaped holes are opened on the top wall of the metering box; The cooling unit includes a cooling plate inserted into the installation cavity, the cooling plate is provided with a plurality of cooling holes, the diameters of the cooling holes are gradually reduced from the port close to the ash filter unit to the other port, a guide groove is provided on the side of the ash filter unit between adjacent cooling holes, and the inner side wall of the cooling plate is in the same horizontal plane as the inner side wall of the metering box; The ash filter unit includes an ash filter plate inserted into the installation cavity and attached to the outer wall of the cooling plate. The outer wall of the ash filter plate is provided with an installation slot for the subsequent installation of the wind gathering unit. The wind gathering unit is composed of a wind gathering plate inserted into the installation slot of the dust filter plate, and a plurality of wind gathering holes are opened on the outer wall of the wind gathering plate. The wind gathering holes are fixedly connected to the wind gathering pipes, and the diameter of the outer end of the wind gathering pipe decreases successively toward the other end; The meter box assembly also includes a pair of rotating parts, the meter box component is installed between the pair of rotating parts, the two inner side walls of the low-voltage cabinet body are respectively fixedly connected to the box body, the rotating part includes a rotating movable part, the rotating movable part is connected to the meter box body, and the box body is provided with a disengagement slot at one end near the low-voltage cabinet door in the longitudinal direction; The rotating movable part includes a slider, which is slidably connected to the box body cavity, and the outer end of the rotating movable part is fixedly connected to the connecting rod and the cylinder in sequence, and the middle position of the cylinder is fixedly connected to a fixed disc, and the two ends of the fixed disc are fixedly connected to a spring and a positioning ball in sequence. A universal ball groove is provided at the inner end of the slider, and a universal ball is provided in the universal ball groove. The universal ball is fixedly connected to a fixed block located on the inner side of the slider, and the top and bottom of the fixed block are fixedly connected to a limiting rod, which consists of a bent rod fixed on the fixed block and a limiting ball at the other end of the bent rod. The limiting ball is located in the limiting circular groove provided at the inner end of the slider; the rotating movable part on the left is suitable for partially disengaging from or entering the corresponding disengagement groove from the corresponding box body, and the rotating movable part on the right is suitable for disengaging from or entering the corresponding box body from the corresponding disengagement groove.

2. The low-voltage cabinet rotary movable metering box according to claim 1, characterized in that: The two box bodies are symmetrically arranged, and the two box bodies are fixedly connected to the low-voltage cabinet body through a connecting plate, and the box body is provided with a retaining wall arranged adjacent to the corresponding disengagement groove in the horizontal direction near one end of the low-voltage cabinet door in the longitudinal direction, and the top and bottom walls inside the box body are provided with multiple positioning grooves distributed in a longitudinal array, among which the internal top wall and bottom wall of the box body on the left side near one end of the cabinet door are also provided with a symmetrical pair of limiting grooves, and the internal top wall and bottom of the inner opening of the box body are fixedly connected with an L-shaped plate, and a convex sliding cavity is formed between the pair of L-shaped plates, and the convex sliding cavity and the inner cavity of the box body constitute a slide groove, and a first convex block and a corresponding rotating part are slidably connected in the slide groove, and the first convex block is fixedly connected to the metering box body.

3. The low-voltage cabinet rotary movable metering box according to claim 2, characterized in that: The positioning ball is suitable for fitting in the positioning groove, the fixed block is fixedly connected to the metering box and is matched with the corresponding convex sliding cavity to slide in the convex sliding cavity, the limiting groove is suitable for fitting with the corresponding positioning ball to limit the longitudinal movement of the positioning ball; the retaining wall is suitable for abutting and fitting with the corresponding cylinder.

4. The low-voltage cabinet rotary movable metering box according to claim 1, characterized in that: A mounting frame assembly is also installed in the metering box assembly, and the mounting frame assembly includes a pair of symmetrically arranged heat conducting plates, a mounting plate is fixedly connected between the two heat conducting plates, and guide plates are fixedly connected to both ends of the heat conducting plates and the mounting plates. The guide plates are fitted with the inner walls of the cooling plates, and a pair of fixed plates are fixedly connected to the guide plates. The fixed plates are fixedly connected to the metering box body by bolts, and multiple heat sinks are fixedly connected in the mounting plate.

5. The low-voltage cabinet rotary movable metering box according to claim 4, characterized in that: A cooling chamber is formed between the heat conduction plate and the inner wall of the metering box. The mounting plate and the guide plate are both convexly arranged. A pair of positioning grooves are provided on the mounting plate. The guide plate is curved and its two ends are in contact with the inner wall of the metering box.

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