Electric energy metering box with self-transportation function

Abstract

The application discloses a kind of electric energy metering box with self-transportation function, belong to electric power equipment technical field.This application includes box, for installing and containing electrical components;Receiving table is set to the bottom of the box;Support piece is symmetrically set to the bottom of the receiving table, the one side of the support piece towards ground is symmetrically provided with two inclined grooves with inclined direction towards ground from middle to both ends, and two inclined grooves are respectively provided with transport roller;Two transmission plates are set to the bottom of receiving table and both ends are respectively connected with the transport roller, and two drive plates are provided with drive screw that drives reverse movement thereof.By the application, by being arranged with two kinds of support state support structure under the box of electric energy metering box, when the box needs to be moved and transported, it can be switched to the state of automatic transportation, so as to facilitate handling, and when it needs to be fixed, it is switched to the fixed state, to ensure the good stability of the box.

Description

Technical Field

[0001] This invention relates to an energy metering box with self-transportation function, belonging to the field of power equipment technology. Background Technology

[0002] An electricity metering box is a collection of metering instruments and auxiliary equipment necessary for measuring electrical energy. It integrates components such as an electricity meter, voltage and current transformers and their secondary circuits, and an electricity metering panel.

[0003] Existing large-volume electricity metering boxes are typically moved by having multiple casters on their bottom. However, when the metering box is moved to a designated location for assembly, the bottom is supported by the casters touching the ground. Since the contact area between the casters and the ground is small, the metering box is prone to shifting, resulting in poor stability. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an energy metering box with self-transportation function, which solves the problem of poor support stability of large-volume energy metering boxes after installation when casters are used to assist in movement.

[0005] The technical problem to be solved by the present invention is achieved by the following technical solution: an energy metering box with self-transportation function, including a box body for installing and accommodating electrical components; A receiving platform is provided at the bottom of the housing; Support members are symmetrically arranged at the bottom of the receiving platform. On the side of the support members facing the ground, there are two inclined grooves symmetrically arranged from the middle to both ends, and each of the two inclined grooves is provided with a transport roller. Two transmission plates are located at the bottom of the receiving platform, and their two ends are respectively connected to the transport rollers. Two drive plates, each equipped with a drive screw that drives them to move in opposite directions; The transmission plate is provided with a guide groove and a locking rod that engages with the guide groove. When the drive plate slides along the drive screw, it pushes the transmission plate to slide.

[0006] By adopting the above technical solution, a support structure with two support states is installed under the electricity metering box. When the box needs to be moved for transportation, it can switch to automatic transportation mode for easy handling; when it needs to be fixed, it switches to fixed mode to ensure good stability of the box. In the specific implementation process, a single drive screw simultaneously drives two drive plates to move in opposite directions, pushing the transmission plate to slide. The transmission plate then drives four transport rollers to lift and lower synchronously, effectively avoiding the problems of asynchronous lifting and box tilting that are prone to occur with multiple drive mechanisms. The lifting drive, transmission, and execution mechanisms are integrated into the bottom of the receiving platform, eliminating the need for additional space inside the box and not affecting the normal installation and use of the metering components. The guiding effect of the symmetrical inclined slide groove ensures that the rollers maintain a uniform force and smooth movement trajectory during lifting and lowering, ensuring a smooth transition between the placement and transportation states.

[0007] The present invention is further configured such that the driving screw is composed of two screws with opposite helical directions and coaxial rotation connected to each other.

[0008] By adopting the above technical solution, and by setting two lead screws with opposite helical directions to be coaxial and rotate in the same direction, it is possible to ensure that the reverse movements of the two transmission plates remain synchronized, so that the two transmission plates driven by the drive plate have the same stroke. On the other hand, by forming a single drive lead screw by splicing two lead screws together, the processing difficulty can be effectively reduced, and the cost of the required parts can be reduced.

[0009] The present invention is further configured such that: a connecting block is provided on the transport roller, the connecting block is slidably engaged in the inclined groove and fixedly connected to the transmission plate.

[0010] By adopting the above technical solution, the connecting block can ensure that the transport roller maintains a predetermined sliding trajectory, preventing it from deviating during movement.

[0011] The present invention is further configured such that: a connecting assembly for connecting two lead screws is provided in the middle of the drive lead screw, the connecting assembly including a mating joint and a mating cap respectively fixedly connected to the two lead screws.

[0012] By adopting the above technical solution, two lead screws can be quickly spliced ​​together to form a drive lead screw, reducing assembly difficulty. At the same time, subsequent maintenance can be carried out by directly replacing parts, resulting in lower costs.

[0013] The present invention is further configured such that: both the front and rear ends of the support member are provided with abutting surfaces parallel to the ground, the horizontal height of the abutting surfaces is flush with the bottom of the inclined chute, and after the transport roller slides to the bottom of the inclined chute, it will abut against the ground and support the metering box, causing the abutting surfaces to detach from the ground.

[0014] By adopting the above technical solution, the metering box can quickly switch between two support states. When the rollers are retracted, the contact surface of the support is fully in contact with the ground, providing a large support area and a low center of gravity, effectively preventing the electricity metering box from tipping over during use. When the rollers are extended, the contact surface is completely detached from the ground, with only the four rollers in contact with the ground, greatly reducing movement resistance and facilitating the handling of the electricity metering box.

[0015] The present invention is further configured such that: the transmission plate includes an inclined portion parallel to the inclined surface of the inclined slide and a horizontal portion parallel to the bottom surface of the receiving platform, and the guide groove is formed on the horizontal portion.

[0016] By adopting the above technical solution The inclined section is parallel to the inclined chute, ensuring that the direction of the thrust exerted by the transmission plate on the roller is consistent with the direction of the roller's movement. This avoids generating ineffective force components during transmission and improves transmission efficiency. Simultaneously, the horizontal section prevents direct contact with the ground and thus avoids interference when the transmission plate controls the transport roller to make contact with the ground. Furthermore, the bent structure of both the horizontal and inclined sections results in higher bending and torsional strength, leading to a longer service life.

[0017] The present invention is further configured such that a drive motor is connected to one end of the drive screw.

[0018] By adopting the above technical solution, the rotation of the lead screw is directly controlled by the drive motor, which is more stable and accurate than manual adjustment by transmission.

[0019] The present invention is further configured such that: a snap-fit ​​hole is provided in the middle of the connector, a threaded portion is provided on the outer ring, a snap-fit ​​portion is provided on the mating cap that snaps into the snap-fit ​​hole, and a nut that can be threadedly connected to the threaded portion is rotatably provided on the snap-fit ​​portion.

[0020] By adopting the above technical solution, the radial positioning of the two lead screws is achieved by the cooperation of the locking hole and the locking part, which ensures the coaxiality of the drive lead screw. The axial locking is achieved by the threaded connection of the nut and the threaded part, which makes the connection firm and able to withstand large axial force and torque.

[0021] The present invention is further configured such that an elastic warning element is provided between the inner surface of the nut and the snap-fit ​​portion.

[0022] By adopting the above technical solution, the connection stability between the two lead screws can be monitored in real time. When loosening occurs, the elastic warning component can quickly send a signal. At the same time, the elastic warning component itself can apply a pre-tightening force to the nut, reducing the risk of loosening.

[0023] The present invention is further configured such that: the elastic warning element includes an elastic element and a pressure sensor abutting against the elastic element, and the pressure sensor is electrically connected to a warning module.

[0024] By adopting the above technical solution, operators can more intuitively detect whether the drive screw is loose, and thus carry out timely maintenance.

[0025] The beneficial effects of this invention are: By incorporating support components, a transmission plate, a drive plate, and transport rollers at the bottom of the receiving platform, a dual-mode support structure is formed. This allows the entire container to quickly switch between a supported state and a moving state. When the container needs to be moved for transport, the transport rollers are adjusted to contact the ground, enabling rapid transport of the entire container on a smooth surface without the need for external auxiliary equipment. When fixed support is required, the transport rollers are adjusted to detach from the ground, allowing the entire container to contact the ground through the contact surfaces on the support components. This significantly increases the contact area and effectively improves the stability of the support.

[0026] By integrating the entire support structure into the bottom of the electricity metering box, the entire metering box can be automatically transported directly through the support structure, enabling rapid transfer between different locations. At the same time, by storing multiple metering modules directly inside the metering box, it can be used as a cargo warehouse, maximizing the utilization of the entire support structure.

[0027] By setting the drive screw, the height adjustment of the entire transport roller becomes more stable and accurate. At the same time, in conjunction with the drive motor, it can effectively reduce the difficulty of manual operation and improve the convenience of switching between states.

[0028] By using two lead screws to achieve coaxial rotation in the same direction, while controlling the two transmission plates to move in different directions, the movement of the two transmission plates is more synchronized, and the tilting caused by asynchronous adjustment of roller height when the metering box switches support states can be prevented.

[0029] By using a connecting assembly to connect the ends of two lead screws, the transmission stability between the lead screws can be improved, and the risk of loosening at the connection point can be reduced. Simultaneously, with the addition of an elastic warning component, the connection degree between the two lead screws can be monitored in real time, issuing an early warning when loosening occurs, thus enabling rapid repair. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the receiving platform of the present invention; Figure 3This is a three-dimensional structural diagram of the transmission plate of the present invention; Figure 4 This is an exploded view of the corresponding structure at the bottom of the receiving platform of the present invention; Figure 5 This is a three-dimensional structural diagram of the support member of the present invention; Figure 6 This is a three-dimensional structural diagram of the connector of the present invention; Figure 7 This is a cross-sectional view of the connector of the present invention.

[0031] In the diagram: 1. Housing; 2. Receiving platform; 3. Support component; 301. Inclined slide; 302. Abutment surface; 4. Transport roller; 5. Drive plate; 6. Transmission plate; 601. Guide groove; 602. Inclined part; 603. Horizontal part; 604. One-way locking block; 7. Drive screw; 701. Screw; 8. Locking rod; 9. Connecting assembly; 901. Butt joint; 9011. Locking hole; 9012. Threaded part; 902. Butt cap; 9021. Nut; 9022. Locking part; 903. Elastic warning component; 9031. Elastic component; 9032. Pressure sensor; 10. Drive motor; 11. Connecting block; 12. Guide rod. Detailed Implementation

[0032] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific illustrations.

[0033] like Figure 1 As shown, an energy metering box with self-transportation function includes a box body 1 for installing and accommodating electrical components. A receiving platform 2 is fixedly connected to the bottom surface of the box body 1. Two support members 3 are symmetrically installed on the bottom surface of the receiving platform 2. The two support members 3 are arranged with the central axis of the receiving platform 2 as the axis of symmetry, and the distance between the two is more than half the side length of the bottom surface of the receiving platform 2.

[0034] Specifically, such as Figure 5 As shown, on the lower surface of the support member 3 facing the bottom, there are two inclined grooves 301 that are inclined towards the ground from the middle to both ends. At the same time, the lower surface of the support member 3 is also an inclined surface with the same inclination angle as the inclined grooves 301. The two inclined grooves 301 are symmetrically arranged with the center of the support member 3, and a transport roller 4 is slidably installed in each of the two inclined grooves 301.

[0035] Two transmission plates 6 are arranged between two support members 3. The two transmission plates 6 are symmetrically arranged at the front and rear ends of the support members 3, connecting the two transport rollers 4 arranged on the same side of the two support members 3. At the same time, a drive screw 7 is installed in the middle of the entire receiving platform 2, located on the central axis of the transmission plate 6. One end of the drive screw 7 is rotatably connected to the support member 3, and the other end is connected to the drive motor 10. The threads on the left and right sides of the drive screw 7 have opposite directions, and a drive plate 5 is threadedly connected to the sections with opposite spiral directions at the left and right ends. After the drive motor 10 drives the drive screw 7 to rotate, the two drive plates 5 can slide in opposite directions along the axis of the drive screw 7.

[0036] like Figure 4 As shown, two symmetrical guide grooves 601 are provided on both transmission plates 6, and the opening direction of the guide grooves 601 extends diagonally from the middle to both sides, forming two guide grooves 601 symmetrical about the center line of the transmission plate 6. At the same time, a locking rod 8 is provided on the drive plate 5, and the locking rod 8 is slidably inserted into the guide groove 601.

[0037] In this embodiment, the guide groove 601 has an overall arc shape, extending diagonally from the middle of the transmission plate 6 to one side, with the arc bending in the direction of its outer side, and finally forming a converging section parallel to the front and rear sides of the transmission plate 6 after turning at the end of the extension.

[0038] In addition, at both ends of the support member 3, there are also pre-reserved abutment surfaces 302 that are parallel to the ground. The abutment surfaces 302 are smoothly connected to the inclined bottom surface with inclined grooves 301, and finally form a shape that is high in the middle and low on both sides. When the entire box 1 is fixed, the transport rollers 4 retract to the high point in the middle of the support member 3 and separate from the ground.

[0039] When the entire container 1 needs to be moved and transported, the drive motor 10 drives the drive screw 7 to rotate, thereby causing the two drive plates 5 to slide towards each other. During the sliding process of the drive plates 5, the locking rods 8 set at both ends of them slide in the guide groove 601 at the same time. However, since the sliding direction of the two drive plates 5 is a straight line, the locking rods 8 will push the transmission plate 6 to move synchronously during the sliding process, so as to adapt to its locking point in the guide groove 601.

[0040] Furthermore, the transmission plate 6 includes an inclined portion 602 parallel to the inclined slide 301 and a horizontal portion 603 parallel to the bottom surface of the receiving platform 2, with a guide groove 601 formed on the horizontal portion 603. The inclined portion 602 is parallel to the inclined slide 301, ensuring that the direction of the thrust of the transmission plate 6 on the roller is consistent with the direction of the roller's movement, thereby avoiding ineffective force during transmission. Simultaneously, by providing the horizontal portion 603, when the transmission plate 6 controls the transport roller 4 to move to contact the ground, it itself can avoid direct contact with the ground and thus prevent interference. On the other hand, due to the bent structure of both the horizontal portion 603 and the inclined portion 602, their bending and torsional strengths are higher, resulting in a longer service life.

[0041] like Figure 3 and Figure 4 As shown, the drive plate 5 slides along the drive screw 7, and through the guiding action of the guide groove 601, it pushes the transmission plate 6 to move to both sides, thereby realizing the control of the transport roller 4.

[0042] Specifically, when the drive plate 5 moves inward and the two drive plates 5 gradually approach each other, they drive the two transmission plates 6 to move away from each other, causing the transport rollers 4 connected to both ends of the transmission plate 6 to slide towards both ends of the support member 3. Under the guidance of the inclined slide 301, the transport rollers 4 sliding towards both ends gradually approach the ground and finally come into contact with the ground. As the transport rollers 4 continue to slide, they gradually lift the entire receiving platform 2 upward, causing the contact surfaces 302 at both ends of the support member 3 to gradually move away from the ground, so that the receiving platform 2 is finally supported by the four transport rollers 4.

[0043] When the drive plate 5 moves outward, the two drive plates 5 gradually move away from each other, which drives the two transmission plates 6 to move closer to each other, so that the transport roller 4 connected to the transmission plate 6 moves towards the middle of the support member 3. At this time, the transport roller 4 is separated from the ground, and the entire box 1 is in contact with the ground through the abutment surfaces 302 at both ends of the support member 3, thus achieving relatively stable support.

[0044] Through the cooperation of the above structures, the entire container 1 can quickly switch between automatic transportation and fixed support modes. When transportation is required, the transport rollers 4 are adjusted to both ends of the support member 3 so that they abut against the ground, making it convenient for operators to move the entire container 1. When fixed installation is required, the transport rollers 4 are adjusted to the middle of the support member 3 so that they are separated from the ground. Instead, the abutment surfaces 302 at both ends of the support member 3 abut against the ground, expanding the contact area with the ground. This makes the fixing of the entire container 1 more stable, and there is no need to worry about positional displacement caused by the rolling of the rollers themselves.

[0045] It should be noted that the radius of the arc of the guide groove 601 should be greater than the side width of the transmission plate 6. When the locking rod 8 slides along the guide groove 601, because the guide groove 601 itself has a certain curvature and the arc protrusion direction is towards the outer side of the transmission plate 6, during the process of the locking rod 8 sliding from the middle point of the transmission plate 6 to the diagonal position of the transmission plate 6, the transmission plate 6 contracts inward, and the two transmission plates 6 move closer to each other. The curvature at the starting point is relatively gentle, and the inclination angle reaches its maximum when approaching the diagonal point. In this section, the distance that the drive plate 5 moves after moving a constant distance is the greatest. That is, when the two drive plates 5 move in a direction away from each other, the distance that they move after moving a constant distance gradually increases. Through the aforementioned transmission method, during the process of switching the box 1 from being supported by the transport rollers 4 to being supported by the contact surfaces 302 at both ends of the support member 3, initially, the transport rollers 4 approach each other at a relatively slow speed. At this time, since the contact surfaces 302 at both ends of the support member 3 have not yet contacted the ground, the box 1 will descend synchronously with the movement of the transport rollers 4. Therefore, the relatively slow movement can reduce the fluctuations that occur during the switching process and ensure its stability. As the transport rollers 4 continue to move until they are separated from the ground, the contact surfaces 302 at both ends of the support member 3 contact the ground. At this time, the box 1 no longer moves up and down with the movement of the transport rollers 4 and is fixed as a whole. Driven by the transmission plate 6, the transport rollers 4 continue to move towards the middle of the support member 3. The movement speed at this time is much higher than the movement speed in the initial process.

[0046] In other embodiments, such as Figure 1 and Figure 2 As shown, the guide groove 601 can also be straight, extending diagonally from the middle of one side of the transmission plate 6 to the other side, with the entire extension path being a straight line. By using a straight extension to set the guide groove 601, the overall movement of the transmission plate 6 can always maintain a constant speed. Compared with the arc-shaped guide groove 601, it is easier to process and does not require adjustment of the rotation speed of the drive screw 7, making the operation relatively simple.

[0047] like Figure 4 As shown, based on the above embodiment, the width of the guide groove 601 itself should be greater than the diameter of the locking rod 8. Simultaneously, corresponding one-way locking blocks 604 are respectively provided on the two inner surfaces of the guide groove 601. There are multiple one-way locking blocks 604, equidistantly connected end-to-end along the extension direction of the guide groove 601, with the locking faces of the one-way locking blocks 604 on the two inner surfaces of the guide groove 601 facing opposite directions.

[0048] By setting a one-way locking block 604, the movement and positioning of the transport roller 4 can be effectively improved. When the transport roller 4 moves with the transmission plate 6, and the transmission plate 6 slides under the drive plate 5, it can limit the locking rod 8 through the one-way locking block 604 to prevent it from moving in the opposite direction, thereby ensuring that the transport roller 4 can always move in a single direction in the predetermined movement path.

[0049] Specifically, when the drive plates 5 approach each other, the locking rod 8 pushes the transmission plates 6 away from each other. At this time, the locking rod 8 abuts against the inner wall with a smaller radius in the guide groove 601. On this inner wall, the one-way locking block 604 is arranged to face the middle of the transmission plate 6. If the transmission plate 6 moves in the opposite direction during this process, it will be unable to move due to the limitation of the one-way locking block 604. It can only move in the predetermined direction under the push of the locking rod 8.

[0050] When the drive plates 5 move away from each other, the situation is reversed. When the drive plate 5 initially moves, the latching rod 8 set on its upper part first moves a certain distance with the drive plate 5 and then comes into contact with the inner wall with a larger radius. Then it pushes the transmission plate 6 to move to both sides, thereby driving the transport roller 4 to move towards both ends of the support member 3.

[0051] In the above method, by adjusting the width of the guide groove 601 and arranging corresponding one-way locking blocks 604 on the two inner walls of the guide groove 601, the stability of the transmission plate 6 when moving can be effectively improved. When the box 1 is supported by the transport rollers 4, the one-way locking blocks 604 can also play a certain locking and limiting role on the locking rod 8, further improving its support strength for the box 1.

[0052] like Figure 2 and Figure 3 As shown in the above embodiment, at the bottom of the receiving platform 2, between the two support members 3, each drive plate 5 is also provided with at least one guide rod 12, with both ends of the guide rod 12 connected to the left and right support members 3 respectively. The guide rod 12 can effectively improve the stability of the drive plate 5 during the sliding process.

[0053] like Figure 2 As shown, a connecting block 11 is also provided on the transport roller 4. The connecting block 11 is slidably engaged in the inclined slide groove 301. A through groove is provided on the side of the inclined slide groove 301 facing the inner side of the receiving platform 2. The end of the transmission plate 6 extends into the inclined slide groove 301 through the through groove and is fixedly connected to the connecting block 11, thereby driving the transport roller 4 to move during the sliding process.

[0054] like Figure 6 and Figure 7As shown, the drive screw 7 is composed of two screws 701 with opposite helical directions and coaxial rotation, connected together. The other ends of the two screws 701 are respectively connected to two support members 3 located at the bottom of the receiving platform 2. Connecting components are provided between the connecting ends of the screws 701, specifically including a mating joint 901 and a mating cap 902 fixedly connected to the ends of the two screws 701 respectively. A threaded hole is provided in the middle of both the mating joint 901 and the mating cap 902, and similar threaded holes of the same specification are also provided at the connecting ends of the two screws 701. The mating joint 901 and the mating cap 902 are fixed to the ends of the two screws 701 by bolts. In other embodiments, the mating joint 901 and the mating cap 902 can also be directly fixed to the two screws 701 by welding.

[0055] Furthermore, the connector 901 is also provided with a threaded part 9012 and a hexagonal snap-fit ​​hole 9011 in the middle. At the same time, a nut 9021 is rotatably provided on the connector 902. The inner surface of the nut 9021 is provided with an internal thread. The end of the connector 901 is provided with a hexagonal snap-fit ​​part 9022. During installation, after inserting the snap-fit ​​part 9022 into the snap-fit ​​hole 9011, the nut 9021 is turned to make it threadedly connected with the threaded part 9012, thereby realizing the quick connection of the two lead screws 701.

[0056] It should be noted that the connector 901 and the mating cap 902 are fixed to the end of the lead screw 701 by bolts. They are also equipped with corresponding hexagonal clips to engage with the lead screw 701 itself, and are then locked in place with bolts. That is, after the connector 901 and the mating cap 902 are fixed to the end of the lead screw 701, they do not rotate relative to the lead screw 701.

[0057] The following is an example of a possible implementation: a hexagonal collet is provided at the end of the lead screw 701, with a threaded hole in the middle of the hexagonal collet. A locking hole is provided on the connector 901 to engage with the hexagonal collet, and a corresponding threaded hole is provided on the other side of the hexagonal collet to penetrate into the hexagonal locking hole. After the hexagonal collet at the end of the lead screw 701 is inserted into the connector 901, the connection is achieved by inserting a bolt into the two threaded holes from the other side of the connector 901.

[0058] In the above connection method, the drive screw 7, which is composed of two lead screws 701 spliced ​​together, will not loosen due to the torque of radial rotation during transmission, thereby effectively improving the stability and service life of the drive screw 7.

[0059] like Figure 7As shown, in the mating cap 902, an elastic warning element 903 is also provided between the nut 9021 and the snap-fit ​​part 9022. This includes an elastic element 9031 and a pressure sensor 9032. The pressure sensor 9032 is electrically connected to a corresponding warning module (not shown). After the elastic element 9031 applies pressure to the pressure sensor 9032, the pressure sensor 9032 detects the pressure and transmits it to the warning module. The warning module allows operators to more intuitively detect whether the drive screw 7 is loose, thus enabling timely maintenance and repair. In this embodiment, the elastic element 9031 is specifically a compression spring, and the pressure sensor 9032 is configured as two stacked circular plates with a through hole in the center. Multiple pressure detection sources are circumferentially arranged between the two circular plates. When the elastic element 9031 is compressed, it can push the circular plates to squeeze the pressure detection sources. In other embodiments, the elastic element 9031 may also be a sheet-like structure or other structures with elastic materials; this application does not specifically limit this.

[0060] Specifically, the warning module can be a buzzer or warning light installed inside the housing 1. The pressure sensor 9032 itself is set with a certain pressure threshold. By detecting the pressure value received by the pressure sensor 9032, if it fluctuates greatly or decreases significantly, it indicates that the nut 9021 has become loose relative to the threaded part 9012. At this time, the corresponding warning module is triggered, an alarm is issued, and the operator is prompted to perform maintenance and repair.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy metering box with self-transportation function, characterized in that, include: The enclosure (1) is used to install and house electrical components; A receiving platform (2) is provided at the bottom of the box body (1); Support member (3) is symmetrically arranged at the bottom of the receiving platform (2). On the side of the support member (3) facing the ground, there are two inclined grooves (301) with inclined directions facing the ground symmetrically arranged from the middle to both ends. Transport rollers (4) are provided on the inclined grooves (301). Two transmission plates (6) are set at the bottom of the receiving platform (2) and their two ends are respectively connected to the transport rollers (4); Two drive plates (5), each drive plate (5) is provided with a drive screw (7) that drives it to move in the opposite direction. The transmission plate (6) is provided with a guide groove (601), and the transmission plate (6) is provided with a snap-fit ​​rod (8) that snaps into the guide groove (601). When the drive plate (5) slides along the drive screw (7), it pushes the transmission plate (6) to slide.

2. The power metering box with self-transportation function according to claim 1, characterized in that: The drive screw (7) is composed of two screws (701) with opposite helical directions and coaxial rotation connected to each other.

3. The power metering box with self-transportation function according to claim 1, characterized in that: A connecting block (11) is provided on the transport roller (4). The connecting block (11) is slidably engaged in the inclined groove (301) and fixedly connected to the transmission plate (6).

4. The power metering box with self-transportation function according to claim 2, characterized in that: The drive screw (7) is provided with a connecting assembly (9) for connecting two screws (701) in the middle. The connecting assembly (9) includes a butt joint (901) and a butt cap (902) that are fixedly connected to the ends of the two screws (701) respectively.

5. An energy metering box with self-transportation function according to claim 1, characterized in that: Both ends of the support member (3) are provided with abutting surfaces (302) parallel to the ground. The horizontal height of the abutting surfaces (302) is flush with the bottom of the inclined chute (301). After the transport roller (4) slides to the bottom of the inclined chute (301), it will abut against the ground and support the metering box, causing the abutting surfaces (302) to detach from the ground.

6. The power metering box with self-transportation function according to claim 1, characterized in that: The transmission plate (6) includes an inclined portion (602) parallel to the inclined surface of the inclined slide (301) and a horizontal portion (603) parallel to the bottom surface of the receiving platform (2), and the guide groove (601) is formed on the horizontal portion (603).

7. An energy metering box with self-transportation function according to claim 2, characterized in that: One end of the drive screw (7) is connected to a drive motor (10).

8. An energy metering box with self-transportation function according to claim 4, characterized in that: The connector (901) has a snap-fit ​​hole (9011) in the middle and a threaded part (9012) on the outer ring. The connector cap (902) has a snap-fit ​​part (9022) that snaps into the snap-fit ​​hole (9011). The snap-fit ​​part (9022) has a nut (9021) that can be threadedly connected to the threaded part (9012).

9. An energy metering box with self-transportation function according to claim 8, characterized in that: An elastic warning element (903) is provided between the inner surface of the nut (9021) and the snap-fit ​​part (9022).

10. An energy metering box with self-transportation function according to claim 9, characterized in that: The elastic warning element (903) includes an elastic element (9031) and a pressure sensor (9032) that abuts against the elastic element (9031), and the pressure sensor (9032) is electrically connected to a warning module.

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