SMC electric energy metering box
Patent Information
- Application Number
- CN202521751430.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-18
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-08-18
AI Technical Summary
[0003]现有的SMC电能计量箱通常在视窗及断路器操作口处设置挡盖以实现遮挡保护功能,但缺乏有效的挡盖锁定机构,当挡盖打开后,需持续用手扶持以避免其自行关闭,会对后续的作业造成干扰,例如进行电表读数或断路器操作时,需持续占用手部力量维持挡盖状态,导致使用体验不佳且操作效率降低
[0010] Compared with the prior art, the beneficial effects of this utility model are: the first spring, groove and ball are provided to enable the second cover to be locked in multiple positions during the sliding process, and the cross screw, second spring, washer and rotating rod are provided to enable the first cover to be suspended at any angle after rotation, so that there is no need to support the second cover and the first cover by hand, which significantly improves the convenience of use and the operating experience.
Smart Images

Figure CN224721430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power metering box technology, specifically an SMC power metering box. Background Technology
[0002] The SMC electricity metering box is an electricity metering device that uses sheet molding compound as the box material. The box is formed by high-temperature molding and the entire box is assembled from various functional components. It features high manufacturing precision, novel and compact structure, and convenient assembly.
[0003] Existing SMC energy metering boxes typically have covers installed at the viewing window and circuit breaker operating port to achieve the function of shielding protection. However, they lack an effective cover locking mechanism. When the cover is open, it needs to be held by hand to prevent it from closing on its own, which will interfere with subsequent operations. For example, when reading the meter or operating the circuit breaker, it is necessary to continuously use hand strength to maintain the cover state, resulting in a poor user experience and reduced operating efficiency. Utility Model Content
[0004] The purpose of this invention is to provide an SMC power metering box to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an SMC energy metering box, comprising a bottom shell, a cover mounted on the front of the bottom shell, and an electrical guide rail disposed inside the bottom shell. The cover has an operating opening, and an operating box corresponding to the operating opening is installed on the inner side of the cover. The operating box has multiple baffles. A second baffle is slidably installed between the operating box and the cover. The cover has a viewing window, and a first baffle is rotatably installed on the outer side of the viewing window. A flange is symmetrically provided on one side of the second baffle, and multiple equally spaced grooves are provided on one side of the flange. The operating box has a circular hole, and a ball is slidably connected inside the circular hole. A first spring is installed inside the circular hole. A rotating rod is provided at the top of the viewing window, and both ends of the rotating rod have internal threaded holes. Rotating parts are provided on both sides of the first baffle, and through holes for the rotating rod to pass through are provided on the rotating parts. A receiving groove communicating with the through holes is provided on the first baffle. A washer and a second spring are respectively fitted on the outer side of the rotating rod, and a cross screw is threaded into the internal threaded hole.
[0006] In a preferred embodiment of this utility model, one end of the first spring abuts against the sphere, and the other end of the first spring abuts against the inner wall of the circular hole.
[0007] As a preferred embodiment of this utility model, a sliding groove is provided on one side of the operation box, and the guard is slidably disposed in the sliding groove.
[0008] As a preferred embodiment of this utility model, one end of the circular hole extends inward to form a protrusion.
[0009] As a preferred embodiment of this utility model, the bottom of the second cover extends outward to form an inclined portion.
[0010] Compared with the prior art, the beneficial effects of this utility model are: the first spring, groove and ball are provided to enable the second cover to be locked in multiple positions during the sliding process, and the cross screw, second spring, washer and rotating rod are provided to enable the first cover to be suspended at any angle after rotation, so that there is no need to support the second cover and the first cover by hand, which significantly improves the convenience of use and the operating experience. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is a schematic diagram of the structure of the first and second covers of this utility model after they are opened;
[0013] Figure 3 This is a cross-sectional view of the present invention;
[0014] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;
[0015] Figure 5 This is a schematic diagram of the structure of the cover of this utility model;
[0016] Figure 6 This is a schematic diagram of the structure of the second cover of this utility model;
[0017] Figure 7 This is a schematic diagram of the structure of the operation box of this utility model;
[0018] Figure 8 This is a schematic diagram of the structure of the first cover and the viewing window of this utility model;
[0019] Figure 9 This utility model Figure 8 Enlarged view of point B in the middle;
[0020] Figure 10 This utility model Figure 8 Cross-sectional view;
[0021] Figure 11 This utility model Figure 10 Enlarged view of point C in the middle;
[0022] Figure 12 This utility model Figure 8 Exploded view;
[0023] Figure 13 This utility model Figure 12 Enlarged view of point D in the middle.
[0024] In the diagram: 1. Bottom shell; 2. Cover; 3. First cover; 4. Second cover; 5. Inclined part; 6. Operating port; 7. Electrical guide rail; 8. Viewing window; 9. Operating box; 10. Groove; 11. Protrusion; 12. Ball; 13. First spring; 14. Round hole; 15. Edge retainer; 16. Slide groove; 17. Phillips head screw; 18. Receiving groove; 19. Rotating part; 20. Internal threaded hole; 21. Rotating rod; 22. Washer; 23. Second spring; 24. Through hole; 25. Baffle. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1 to 13This utility model provides a technical solution: an SMC energy metering box, including a bottom shell 1, a cover 2 installed on the front of the bottom shell 1, and an electrical guide rail 7 disposed inside the bottom shell 1. The electrical guide rail 7 is used to install circuit breakers. When the circuit breaker is installed on the electrical guide rail 7, the handle of the circuit breaker is located inside the operating port 6, that is, inside the operating box 9. The cover 2 has an operating port 6, which facilitates the user to operate the handle of the circuit breaker. The inner side of the cover 2 is equipped with an operating box 9 corresponding to the operating port 6. The operating box 9 is provided with multiple baffles 25. According to the number of circuit breakers installed on the electrical guide rail 7, the corresponding baffles 25 are broken to avoid interference between the operating box 9 and the circuit breaker. A second baffle 4 is slidably installed between the operating box 9 and the cover 2. The cover 4 is used to shield one side of the operation box 9, thereby protecting the circuit breaker installed on the electrical rail 7. The cover 2 has a viewing window 8 made of transparent material, allowing the user to easily read the meter installed inside the bottom shell 1. A first cover 3 is rotatably mounted on the outside of the viewing window 8, protecting it. A symmetrical edge 15 is provided on one side of the second cover 4, with multiple equally spaced grooves 10 on one side of the edge 15. The operation box 9 has a circular hole 14, inside which a ball 12 is slidably connected. A first spring 13 is installed inside the circular hole 14, applying a pushing force to the ball 12, causing part of the ball 12 to embed into the groove 10, forming a mechanical limiting structure. The second cover 4 is fixed in place. Due to the multiple grooves 10, the second cover 4 can be locked in multiple preset positions within its sliding stroke, allowing it to be fixed without external support after sliding, thus improving ease of use. A rotating rod 21 is located at the top of the viewing window 8, with internal threaded holes 20 at both ends. Rotating parts 19 are located on both sides of the first cover 3. The first cover 3 is rotatably mounted on the outside of the viewing window 8 via the rotating parts 19 and the rotating rod 21. A through hole 24 is provided on the rotating part 19 for the rotating rod 21 to pass through. A receiving groove 18 communicating with the through hole 24 is provided on the first cover 3. A washer 22 and a second spring 23 are respectively fitted onto the outside of the rotating rod 21. One end of the second spring 23 abuts against the washer 22. The other end of the first cover 3 is pressed against the head of the cross screw 17. The second spring 23 is used to apply axial thrust to the washer 22, so that the washer 22 presses against the rotating part 19. The side of the rotating part 19 away from the washer 22 presses against the viewing window 8, thereby generating sufficient frictional resistance during the rotation of the rotating part 19. This frictional resistance can ensure that the first cover 3 can be stably suspended at any angle when rotating. The outer diameter of the washer 22 is larger than the diameter of the through hole 24, so that the washer 22 cannot pass through the through hole 24. The internal thread of the internal threaded hole 20 is connected to the cross screw 17. The outer diameter of the head of the cross screw 17 is smaller than the diameter of the receiving groove 18, so that the head of the cross screw 17 can be completely sunk into the receiving groove 18. Rotating the cross screw 17 can adjust the compression of the second spring 23.The change in the compression degree of the second spring 23 directly affects the magnitude of the axial thrust it applies to the washer 22. Based on the relationship between force transmission and action, this change in thrust can further adjust the frictional resistance experienced by the rotating part 19 during rotation, thereby achieving flexible control over the suspension resistance of the first stop cover 3.
[0027] One end of the first spring 13 abuts against the ball 12, and the other end of the first spring 13 abuts against the inner wall of the circular hole 14.
[0028] The operation box 9 has a sliding groove 16 on one side, and the baffle 15 is slidably disposed in the sliding groove 16. The sliding groove 16 and the baffle 15 are paired to provide a limiting function for the second baffle 4. The operation box 9 and the cover 2 can also provide a limiting function for the second baffle 4 to ensure the stability of the second baffle 4 when sliding.
[0029] One end of the circular hole 14 extends inward to form a protrusion 11, which serves to limit the sphere 12, allowing the sphere 12 to partially protrude out of the circular hole 14 without completely separating from it.
[0030] The bottom of the second cover 4 extends outward to form an inclined part 5. The inclined part 5 makes it convenient for the user to push the second cover 4 upward. When the second cover 4 is pushed to the top, the inclined part 5 will be blocked by the cover 2, so as to prevent the second cover 4 from being completely blocked by the cover 2.
[0031] Specifically, when the circuit breaker needs to be operated, the second cover 4 is opened by pushing the inclined part 5 upward. When the second cover 4 moves, it will squeeze the ball 12 into the circular hole 14. The ball 12 compresses the first spring 13. When the groove 10 is aligned with the ball 12, the first spring 13 returns to its original position and pushes the ball 12 into the groove 10, thereby locking the second cover 4. Since there are multiple grooves 10, the second cover 4 can be locked in multiple positions. Push the second cover 4 to a suitable position to expose the handle of the circuit breaker for operation. When it is necessary to read the meter inside the bottom shell 1, rotate to open the first cover 3. The first cover 3 drives the rotating part 19 to rotate. The second spring 23 applies axial thrust to the pad 22. The pad 22 presses against the rotating part 19, so that the rotating part 19 receives sufficient frictional resistance during rotation, thereby allowing the first cover 3 to be stably suspended at any angle. Rotate the first cover 3 to a suitable angle until the viewing window 8 is exposed. At this time, the meter can be read.
[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An SMC power metering box, comprising a bottom shell (1), a cover (2) mounted on the front of the bottom shell (1), and an electrical guide rail (7) disposed inside the bottom shell (1), wherein the cover (2) has an operation port (6), an operation box (9) corresponding to the operation port (6) is installed on the inner side of the cover (2), the operation box (9) is provided with a plurality of baffles (25), a second baffle (4) is slidably installed between the operation box (9) and the cover (2), the cover (2) is provided with a viewing window (8), and a first baffle (3) is rotatably installed on the outer side of the viewing window (8), characterized in that: The second cover (4) has symmetrically provided edge (15) on one side, and a plurality of equally spaced grooves (10) are provided on one side of the edge (15). The operation box (9) has a round hole (14), and a ball (12) is slidably connected inside the round hole (14). A first spring (13) is installed inside the round hole (14). A rotating rod (21) is provided at the top of the window (8). Both ends of the rotating rod (21) are provided with internal thread holes (20). The first cover (3) has a rotating part (19) on both sides. A through hole (24) for the rotating rod (21) to pass through is provided on the rotating part (19). The first cover (3) has a receiving groove (18) communicating with the through hole (24). A washer (22) and a second spring (23) are respectively sleeved on the outside of the rotating rod (21). A cross screw (17) is threaded inside the internal thread hole (20).
2. The SMC power metering box according to claim 1, characterized in that: One end of the first spring (13) abuts against the ball (12), and the other end of the first spring (13) abuts against the inner wall of the round hole (14).
3. The SMC power metering box according to claim 2, characterized in that: The operation box (9) has a sliding groove (16) on one side, and the guard (15) is slidably disposed in the sliding groove (16).
4. The SMC power metering box according to claim 3, characterized in that: One end of the circular hole (14) extends inward to form a protrusion (11).
5. An SMC energy metering box according to claim 4, characterized in that: The bottom of the second cover (4) extends outward to form an inclined portion (5).