An energy metering box with protective device

Abstract

This utility model provides an energy metering box with a protective device, including a box body, a metering module installed inside the box body, and a protective device on the front side of the box body. The protective device includes a fixed frame, multiple protective door panels slidably installed within the fixed frame, and a rotatable fixed door panel. A driving component is installed between the fixed door panel and the fixed frame, and a support component is installed between the protective door panel and the fixed frame. The protective door panel is rotatably mounted on the support component, and a first gear is fixedly installed on the driving component. A driving linkage is also fixed on the fixed frame. The driving component drives the fixed door panel to rotate, and the first gear on it drives a second gear on the driving linkage, which in turn drives all the transmission linkages through a series of meshing third gears, realizing the synchronous sliding opening or closing of multiple protective door panels. This design allows the entire protective device to operate in a coordinated manner, opening quickly and closing tightly, improving operational convenience and overall protective effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of electricity metering boxes, specifically an electricity metering box with a protective device. Background Technology

[0002] With the widespread use of power metering boxes in outdoor power distribution systems, their enclosures need to meet reliability requirements in terms of dust and rain protection, theft prevention, and impact resistance, while also facilitating later maintenance and component replacement. Currently, common protective devices mostly adopt single-hinged door or simple buffer door structures, using spring components or gas springs to buffer the impact of the combination lock. However, the door panel and frame are often fixed together by bolts or welding. Once an external impact causes damage to the door panel, maintenance personnel need to completely disassemble the box to replace the damaged parts, which is both time-consuming and labor-intensive.

[0003] On the other hand, door panels made of a single material are prone to cracking or penetration when subjected to high-intensity impacts from stones, steel balls, etc., which not only affects their protective performance but may also damage internal controllers and current transformers, increasing maintenance risks. In addition, traditional door panels lack a modular design for rapid maintenance. When replacing shock-absorbing components or seals on-site, the entire door or multiple parts need to be removed, resulting in excessively long power outage maintenance time and increasing the complexity and safety hazards of on-site construction. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an energy metering box with a reliable protective structure and a door panel that can be independently and quickly disassembled and replaced, so as to solve the problems of difficult repair, long time consumption and high maintenance cost after the protective door panel of the existing energy metering box is damaged.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An electrical energy metering box with a protective device includes a box body, a metering module is installed inside the box body, and a protective device is installed on the front side of the box body; The protective device includes a fixed frame, in which multiple protective door panels and a rotatable fixed door panel are slidably arranged. A driving component is provided between the fixed door panel and the fixed frame, and a supporting component is provided between the protective door panel and the fixed frame. The protective door panel is rotatably mounted on the supporting component, and a first gear is fixedly provided on the driving component. A drive link is also fixed on the fixed frame. A second gear that meshes with the first gear is fixed to one end of the drive link. Two transmission links are hinged on the support member. A third gear is provided on the transmission link. The two transmission links on the same support member mesh with each other. The protective door panel is fixedly connected to one transmission link on the support member. The two transmission links on the support member are respectively hinged to one end of the transmission link on the adjacent support member. Each drive component is equipped with a replacement assembly for fixing the protective door panel to the support component and fixing the fixed door panel to the drive component.

[0006] As a further optimization of this utility model: The replacement component includes a locking member rotatably mounted on the support and drive members. The locking member comprises an operating part and a fixing part, with an obtuse angle between the operating part and the fixing part. Both the protective door panel and the fixed door panel are provided with a locking block. Each locking block includes a first protrusion extending along the thickness direction of the protective door panel or the fixed door panel, and a second protrusion extending along its width direction. This design utilizes the lever principle and shape coordination; rotating the operating part reliably engages or disengages the fixing part from the second protrusion of the locking block. The operation is simple and intuitive, and the locking is reliable. The obtuse angle design gives the locking member a self-locking tendency in the locked state, making it less prone to loosening due to vibration.

[0007] As a further optimization of this utility model: The replacement assembly also includes a push spring acting on the fixing part. This push spring can apply a continuous thrust to the fixing part of the locking member, making it press more tightly against the snap-fit ​​block, ensuring that the door panel remains stable under long-term use and vibration, without producing abnormal noise or loosening, and further improving the reliability of the connection.

[0008] As a further optimization of this utility model: The replacement assembly includes two locking components arranged symmetrically. This symmetrical arrangement ensures more even force distribution on the door panel, resulting in a more centered and stable position after installation. It prevents warping or shifting caused by single-point fixing, thus improving the overall structural stability.

[0009] Furthermore, only one of the transmission links is provided on the support member located at the end of the protective device.

[0010] As a further optimization of this utility model: An antistatic bar is fixedly installed on the fixed door panel. Before activating the protective device, the operator can touch the antistatic bar to eliminate static electricity from their body, thereby preventing damage to the equipment due to electrostatic discharge when operating internal metering modules and other electronic components, and improving operational safety.

[0011] Compared with the prior art, the present invention has the following significant advantages: 1. Interlocking Protection and Rapid Opening: The fixed door panel is rotated by a drive component. The first gear on the fixed door panel drives the second gear on the drive linkage, which in turn drives all the transmission linkages through a series of meshing third gears, achieving synchronous sliding opening or closing of multiple protective door panels. This design allows the entire protective device to operate in conjunction with each other, opening quickly and closing tightly, improving operational convenience and overall protective effectiveness.

[0012] 2. Modular Design and Quick Replacement: The core feature is the inclusion of replacement components, allowing each protective and fixed door panel to be secured as an independent module to the support or drive components. When any door panel is damaged by external impact, maintenance personnel do not need to disassemble the entire protective device; they can simply operate the corresponding replacement component to quickly remove the damaged door panel and replace it with a new one. This significantly reduces maintenance downtime and lowers maintenance difficulty and costs.

[0013] 3. Stable and reliable structure: Multiple sliding protective door panels create a multi-layered protective structure, which, compared to a single door panel, more effectively disperses and absorbs impact force, improving impact resistance and anti-vandalism capabilities. The gear and linkage transmission mechanism ensures the synchronicity and stability of the movement of each door panel. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the protective component in one embodiment of the present invention; Figure 3 This is a schematic diagram of the replacement component in one embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Box body; 2. Protective device; 21. Fixed frame; 22. Protective door panel; 23. Fixed door panel; 24. Driving component; 241. First gear; 25. Support component; 251. Transmission link; 252. Third gear; 26. Driving link; 261. Second gear; 3. Replacement components; 31. Locking element; 311. Operating part; 312. Fixing part; 32. Snap-fit ​​block; 321. First protrusion; 322. Second protrusion; 33. Push spring; 4. Antistatic bar. Detailed Implementation

[0017] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0018] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] Example 1 An electrical energy metering box with protective devices, such as Figure 1-3 As shown, it includes a housing 1 and a metering module disposed inside the housing 1. The protective device 2 involved in this utility model is installed at the front opening of the housing 1.

[0020] The protective device 2 mainly consists of a fixed frame 21, which is securely mounted on the front side of the housing 1. The interior of the fixed frame 21 defines a receiving space for mounting multiple horizontally sliding protective door panels 22 and a fixed door panel 23 that can rotate about an axis. In this embodiment, the fixed door panel 23 is located on one side of the protective device 2, for example, the right side, while the multiple protective door panels 22 (e.g., three panels) are arranged side by side and can slide under the guidance of the fixed frame 21.

[0021] The fixed door panel 23 is rotatably connected to the fixed frame 21 via one or more drive members 24, which can be a hinge structure. A first gear 241, serving as a drive wheel, is fixedly mounted on a key drive member 24.

[0022] A drive linkage 26 is fixedly installed on the fixed frame 21. A second gear 261 is fixed on the drive linkage 26, and the second gear 261 meshes precisely with the aforementioned first gear 241. When the fixed door panel 23 rotates together with the drive component 24, the first gear 241 rotates accordingly, thereby driving the second gear 261 and the entire drive linkage 26 to move.

[0023] Each protective door panel 22 is slidably mounted on the upper and lower tracks of the fixed frame 21 via a support member 25. Each support member 25 has two transmission rods 251 hinged to it via pins. Each transmission rod 251 has a third gear 252 fixedly welded or integrally formed on it. The third gears 252 on these two transmission rods 251 on the same support member 25 are meshed with each other. This design constitutes a gear transmission pair.

[0024] The transmission links 251 on adjacent support members 25 are connected by end hinges. Specifically, one transmission link 251 of the first support member 25 is hinged to one transmission link 251 of the second support member 25, and so on. The transmission link 251 of the support member 25 closest to the fixed door panel 23 is hinged to the drive link 26.

[0025] In this way, a complete transmission chain is formed: when a person rotates the fixed door panel 23, the first gear 241 drives the second gear 261, the second gear 261 drives the drive linkage 26, and the drive linkage 26 drives the transmission linkage 251 of the first protective door panel 22 to move through the hinge point. Since the two third gears 252 on the same support member 25 mesh, they will drive the support member 25 to move. At the same time, through the hinge of the adjacent transmission linkage 251, the motion is transmitted to the next protective door panel 22, and finally all the protective door panels 22 can slide to one side to open or close synchronously.

[0026] One of the core features of this invention is the replacement component 3. The replacement component 3 is provided on both the drive member 24 and the support member 25. This replacement component 3 includes two symmetrically arranged locking members 31. Each locking member 31 is rotatable about a pivot point on it, and its shape is divided into an operating part 311 for manual operation and a fixing part 312 for locking and securing, with an obtuse angle (e.g., 135 degrees) between them.

[0027] Correspondingly, a snap-fit ​​block 32 is provided at the corresponding position on the back of each protective door panel 22 and fixed door panel 23. The snap-fit ​​block 32 has a specific three-dimensional structure, including a first protrusion 321 extending perpendicular to the door panel surface and a second protrusion 322 extending parallel to the door panel surface, forming a "T"-shaped slot structure.

[0028] When installing the door panel, align the latching block 32 on the door panel with the support member 25 (or the drive member 24) so ​​that the first protrusion 321 is inserted into the corresponding position. Then, rotate the operating part 311 of the locking member 31, and its fixing part 312 will rotate and engage below the second protrusion 322 of the latching block 32, thereby firmly locking the door panel onto the support member 25 or the drive member 24. To increase the reliability of the locking, a push spring 33 consisting of a compression spring is also installed between the fixing part 312 of the locking member 31 and the support member 25 / drive member 24. This spring continuously applies pressure to the fixing part 312, making it press tightly against the latching block 32 to prevent it from loosening due to vibration.

[0029] When a damaged door panel needs to be replaced, the repairman only needs to rotate the operating part 311 of the two locking parts 31 corresponding to the door panel in the opposite direction to disengage the fixing part 312 from the snap-fit ​​block 32, and the door panel can be easily removed. Then, the new door panel can be installed and locked in the same way. The whole process does not require disassembling any other parts, which is quick and convenient.

[0030] In addition, to improve operational safety, a metal antistatic rod 4 is fixedly installed on the outer surface of the fixed door panel 23. The antistatic rod 4 is existing technology that has been fully disclosed, so it will not be described in detail here. Before opening the door, the operator can touch this rod to release his own static electricity.

[0031] In summary, this utility model achieves synchronous opening and closing of the protective door through a sophisticated gear and linkage mechanism. At the same time, through the innovative replacement component 3 with locking element 31 and snap-fit ​​block 32, it realizes modularization and quick replacement of the door panel, effectively solving the problems of difficult maintenance and time-consuming and labor-intensive maintenance in the prior art. It has high practical value and promising prospects for promotion.

[0032] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An energy metering box with a protective device, comprising a box body, wherein a metering module is disposed within the box body, characterized in that, A protective device is provided on the front side of the enclosure; The protective device includes a fixed frame, in which multiple protective door panels and a rotatable fixed door panel are slidably arranged. A driving component is provided between the fixed door panel and the fixed frame, and a supporting component is provided between the protective door panel and the fixed frame. The protective door panel is rotatably mounted on the supporting component, and a first gear is fixedly provided on the driving component. A drive link is also fixed on the fixed frame. A second gear that meshes with the first gear is fixed to one end of the drive link. Two transmission links are hinged on the support member. A third gear is provided on the transmission link. The two transmission links on the same support member mesh with each other. The protective door panel is fixedly connected to one transmission link on the support member. The two transmission links on the support member are respectively hinged to one end of the transmission link on the adjacent support member. Each drive component is equipped with a replacement assembly for fixing the protective door panel to the support component and fixing the fixed door panel to the drive component.

2. The power metering box with protective device according to claim 1, characterized in that, The replacement component includes a locking member rotatably mounted on the support member and the drive member. The locking member includes an operating part and a fixing part, and the included angle between the operating part and the fixing part is an obtuse angle. Both the protective door panel and the fixed door panel are provided with snap-fit ​​blocks. Each snap-fit ​​block includes a first protrusion extending along the thickness direction of the protective door panel or the fixed door panel, and a second protrusion extending along its width direction.

3. The power metering box with protective device according to claim 2, characterized in that, The replacement component also includes a push spring that acts on the fixed part.

4. The power metering box with protective device according to claim 2, characterized in that, The number of locking components in the replacement assembly is two, and they are arranged symmetrically.

5. An energy metering box with a protective device according to claim 1, characterized in that, An antistatic bar is fixedly installed on the fixed door panel.

6. The power metering box with protective device according to claim 1, characterized in that, Only one of the transmission links is provided on the support member located at the end of the protective device.

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