Electric meter box with split type guide rail structure
By designing a split guide rail structure, using a split sliding mechanism of upper and lower sliders, combined with fastening bolts and angle limiting grooves, the problem of difficult meter installation in the meter box is solved, achieving convenient installation and improved stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-10
- Publication Date
- 2026-03-20
AI Technical Summary
In existing meter boxes, the sliding installation structure is usually an integral type, which makes it difficult to install, adjust the position, or disassemble and maintain the meter, especially when the two ends of the guide rail are blocked by the box structure, cables or other electrical components.
The device adopts a split guide rail structure. The upper and lower sliders are installed independently from the front of the guide rail, and the support arm and slider are locked together by fastening bolts, which realizes the direct installation and removal of the meter. The angle limiting groove of the support arm cooperates with the storage and fixing hole of the mounting base plate to ensure stability and space utilization.
It enables convenient installation and maintenance of electricity meters, improves the ease of installation and structural stability, simplifies the operation process, and enhances space utilization and storage organization.
Smart Images

Figure CN224019891U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical equipment installation technology, and specifically refers to an electric meter box with a split-type guide rail structure. Background Technology
[0002] As the installation carrier for electricity metering equipment, the meter box not only needs to provide a stable and safe fixed environment for the meter, but also needs to facilitate the reading, inspection and replacement by operation and maintenance personnel.
[0003] Currently, when installing electricity meters inside meter boxes, a sliding mounting structure is used to facilitate position adjustment or future replacement. However, such sliding mechanisms are usually integral sliders, which must be pushed in from the end of a guide rail fixed inside the box during installation. In actual meter boxes, the ends of the guide rail are often difficult to access due to the box structure, existing cables, or other electrical components, making meter installation, position adjustment, or disassembly and maintenance extremely difficult. Therefore, there is an urgent need for a meter mounting bracket that does not require insertion from the end of the guide rail. Utility Model Content
[0004] The present invention aims to provide an electric meter box with a split guide rail structure. Through the split sliding mechanism design, the electric meter can be directly installed from the front of the fixed guide rail, thereby solving the problems mentioned in the background art.
[0005] The purpose of this utility model is achieved as follows: an electric meter box with a split-type guide rail structure includes:
[0006] The mounting base plate has a top mounting hole for fixing the top of the meter box and a linear guide rail extending along the length direction.
[0007] Two support arms, one end of which is coaxially connected and can rotate relative to each other, and the other end is provided with a bottom mounting hole for fixing the bottom of the meter box;
[0008] The split sliding mechanism is used to slide the two support arms on the linear guide rail. It includes a split upper slider and a lower slider, which can be independently installed from the front opening of the linear guide rail and form a sliding fit with both sides of the linear guide rail.
[0009] Fastening bolts are inserted through the coaxial connection of the two support arms and lock the upper slider, lower slider and the two support arms into one unit, so that the whole unit can slide along the linear guide rail.
[0010] The present invention is further configured such that the upper slider has a bolt through hole for the fastening bolt to pass through, and its bottom has a first slide rail part that cooperates with one side of the linear guide rail; the lower slider has a threaded fixing seat at its bottom, and its top has a second slide rail part that cooperates with the other side of the linear guide rail.
[0011] The present invention is further configured such that the fastening bolt passes through the two support arms in sequence, and after the bolt through hole, it is threadedly connected to the threaded fixing seat.
[0012] The present invention is further provided with an angle limiting groove at the coaxial connection of the two support arms to limit their opening angle.
[0013] The present invention is further configured such that the surface of the mounting base plate is provided with a storage and fixing hole parallel to the linear guide rail, for inserting a positioning component to fix the support arm when in the storage state.
[0014] The present invention is further configured such that the bolt through hole is a smooth hole, the threaded fixing seat is a threaded hole, and the head of the fastening bolt is pressed against the surface of the upper support arm.
[0015] The present invention is further configured such that the positioning element is a positioning pin or a screw.
[0016] By adopting the above technical solution, the beneficial effects that this utility model can achieve are:
[0017] 1. The separate upper and lower sliders, which can be installed independently, allow for direct installation and removal from any position on the front of the guide rail, improving the convenience of installation and maintenance.
[0018] 2. By locking the sliding block and the support arm together with the fastening bolts passing through the support arm, the connection rigidity between the components and the overall integrity during sliding are enhanced, thereby improving the structural stability and reliability.
[0019] 3. By cooperating with the angle limiting groove of the support arm and the storage fixing hole on the mounting base plate, reliable limiting in the working state and compact fixing in the non-use state are achieved, improving space utilization and storage neatness. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the meter box of this utility model;
[0021] Figure 2 This is a first three-dimensional structural diagram of the present invention in its installed state;
[0022] Figure 3 This is a second three-dimensional structural diagram of the present invention in its installed state;
[0023] Figure 4 This is a three-dimensional structural diagram of the present invention in its stored state;
[0024] Figure 5 This is an exploded view of the split sliding mechanism of this utility model.
[0025] The attached figures are labeled as follows: 1. Meter box; 2. Mounting base plate; 3. Top mounting hole; 4. Linear guide rail; 5. Support arm; 6. Bottom mounting hole; 7. Split sliding mechanism; 70. Upper slider; 71. Lower slider; 8. Fastening bolt; 9. Bolt through hole; 10. First slide rail section; 11. Threaded fixing seat; 12. Second slide rail section; 13. Angle limiting groove; 14. Storage fixing hole; 15. Positioning component. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-5 :
[0027] Example 1:
[0028] This embodiment provides an electric meter box with a split-type guide rail structure, including:
[0029] Mounting base plate 2, the surface of which is provided with top mounting hole 3 for fixing the top of meter box 1, and linear guide rail 4 extending along the length direction;
[0030] Two support arms 5 are coaxially connected at one end and can rotate relative to each other, and the other end is provided with a bottom mounting hole 6 for fixing the bottom of the meter box 1.
[0031] The split sliding mechanism 7 is used to slide the two support arms 5 onto the linear guide rail 4. It includes a split upper slider 70 and a lower slider 71, which can be independently inserted from the front opening of the linear guide rail 4 and form a sliding fit with the two sides of the linear guide rail 4.
[0032] Fastening bolt 8 is inserted at the coaxial connection of the two support arms 5 and locks the upper slider 70, lower slider 71 and the two support arms 5 into one unit, so that the whole unit can slide along the linear guide rail 4.
[0033] Mounting base plate 2 is typically a rectangular plate structure. It provides a stable mounting surface and serves as the foundation for the entire sliding mounting mechanism, fixed to the inner wall of meter box 1. Its plate-like construction connects to the box body via screws, and its surface is provided with holes and tracks for subsequent installation.
[0034] The top mounting hole 3 is a through hole or threaded hole opened on the upper part of the mounting base plate 2. It is used for fasteners such as bolts to pass through, thereby fixing the top housing of the meter to the mounting base plate 2 and providing a mounting support for the upper part of the meter.
[0035] The linear guide rail 4 is an elongated track formed on the surface of the mounting base plate 2. The cross-section of the linear guide rail 4 has two opposing guide sides, which are used to mate with the upper slider 70 and the lower slider 71, respectively. The linear guide rail 4 provides a guiding path for adjusting the position of the meter. It is constructed as a profile with a specific sliding surface and can be integrally molded and fixed to the mounting base plate 2. Its position is typically in the middle of the mounting base plate 2 or in an easily accessible area.
[0036] The support arm 5 is a connector that links the bottom of the meter to the sliding mechanism. It supports the bottom of the meter and transfers its weight to the sliding mechanism. It is typically a straight rod-shaped component, with a coaxial connection at one end for the rotating shaft to pass through, and a bottom mounting hole 6 at the other end. The two support arms 5 are rotatably connected at the coaxial connection by fastening bolts 8.
[0037] The bottom mounting hole 6 is located at the end of the support arm 5 away from the center of rotation. It is used to connect the bottom mounting lug or housing of the meter with fasteners, and together with the top mounting point, it completes the fixation of the meter.
[0038] The split sliding mechanism 7 is composed of two independent parts: an upper slider 70 and a lower slider 71. Since the upper slider 70 and the lower slider 71 are independent split structures, their maximum lateral dimensions are no greater than the opening width on the front of the guide rail. Therefore, they can be inserted or removed vertically through this opening, rather than having to slide in from the end of the guide rail. Its split design allows the entire sliding module to be assembled from the front of the fixed linear guide rail 4 without having to pass through the end of the guide rail.
[0039] The upper slider 70 is a part of the split sliding mechanism 7, which forms a sliding fit with one side of the linear guide rail 4, and its shape matches the contour of one side of the guide rail; the lower slider 71 is another part of the split sliding mechanism 7 that is paired with the upper slider 70, and forms a sliding fit with the other side of the linear guide rail 4.
[0040] The fastening bolt 8 passes sequentially through the coaxial connection of the two support arms 5, the upper slider 70, and finally screws into the threaded fixing seat 11 of the lower slider 71. By tightening, it generates an axial clamping force, rigidly connecting the four independent components of the two support arms 5, the upper slider 70, and the lower slider 71 into a whole that can slide synchronously along the guide rail.
[0041] Furthermore, the upper slider 70 is provided with a bolt through hole 9 for the fastening bolt 8 to pass through, and its bottom has a first slide rail portion 10 that mates with one side of the linear guide rail 4. The lower slider 71 is provided with a threaded fixing seat 11 at its bottom, and its top has a second slide rail portion 12 that mates with the other side of the linear guide rail 4. The purpose of the above design is to achieve the assemblability and functional integration of the split sliding mechanism. Specifically, the first slide rail portion 10 at the bottom of the upper slider 70 is constructed as a groove or hook shape that matches the contour of one side of the linear guide rail 4, and the second slide rail portion 12 at the top of the lower slider 71 is constructed as a corresponding structure that matches the contour of the other side of the guide rail, so that the two can be inserted from the front of the guide rail and form a sliding fit. In terms of connection method, the bolt through hole 9 of the upper slider 70 is a smooth hole, which refers to a through hole without threads on the inner wall, used for the fastening bolt 8 to pass through and allowing its axial movement. The threaded fixing seat 11 of the lower slider 71 is a threaded hole, forming a threaded fastening connection with the end of the bolt. When the bolt is tightened, the lower slider 71 is pulled to move closer to the upper slider 70, thereby causing the first slide rail 10 and the second slide rail 12 to hug the guide rail from both sides, transforming the two independent components into a stable sliding whole.
[0042] Furthermore, an angle limiting groove 13 is provided at the coaxial connection of the two support arms 5 to limit their opening angle. The purpose of this design is to ensure the reliability and consistency of the meter installation through mechanical limiting. The angle limiting groove 13 is usually an arc-shaped or fan-shaped groove at the coaxial connection of the support arms 5, with its two ends corresponding to the minimum and maximum opening positions of the support arms 5, respectively.
[0043] Furthermore, the mounting base plate 2 has a storage and fixing hole 14 parallel to the linear guide rail 4 on its surface, for inserting the positioning member 15 to fix the support arm 5 in the stored state. This design aims to achieve stable storage of the support arm 5 in the non-working state, saving internal space in the meter box 1 and preventing component movement. The storage and fixing hole 14 is a circular hole penetrating the mounting base plate 2; the positioning member 15 is typically a cylindrical screw rod or pin. When the support arm 5 rotates to a stored position parallel to the mounting base plate 2, the corresponding hole or groove on the support arm 5 aligns with the storage and fixing hole 14. At this time, the rod of the positioning member 15 is inserted into the hole and extends into the corresponding structure of the support arm 5. A temporary mechanical constraint is formed through clearance fit or simple snap-fit, thereby fixing the support arm 5 in the stored state.
[0044] Through the above technical solution, the upper slider 70 and lower slider 71, which are separately set, are first installed independently from the front opening of the linear guide rail 4 fixed to the mounting base 2, so that they each form a sliding fit with the two sides of the guide rail. Then, two support arms 5 that are coaxially rotatably connected at one end are placed above the slider assembly, and fastening bolts 8 are used to pass through the connection of the two support arms 5, the bolt through hole 9 of the upper slider 70, and screwed into the threaded fixing seat 11 of the lower slider 71. By tightening the bolts, the slider and support arms 5 are locked into a sliding whole that can be adjusted vertically along the guide rail. The mounting hole at the other end of the support arm 5 is used to fix the electricity meter, and its rotation angle is mechanically limited by the angle limiting groove 13 at the coaxial connection. When the electricity meter is not required to be installed, the support arm 5 can be rotated to the storage state that fits against the mounting base 2, and is temporarily fixed by the positioning piece 15 inserted into the storage fixing hole 14 on the base plate that is parallel to the guide rail. This design eliminates the need to operate the meter from the end of the guide rail during installation inside the box, simplifying the assembly and position adjustment process while ensuring installation stability and improving the neatness of the space when not in use.
[0045] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A meter box with a split-type guide rail structure, characterized in that, include: Mounting base plate (2) has a top mounting hole (3) on its surface for fixing the top of the meter box (1) and a linear guide rail (4) extending along the length direction. Two support arms (5) are coaxially connected at one end and can rotate relative to each other, and the other end is provided with a bottom mounting hole (6) for fixing the bottom of the meter box (1). The split sliding mechanism (7) is used to slide the two support arms (5) on the linear guide rail (4). It includes a split upper slider (70) and a lower slider (71), which can be independently installed from the front opening of the linear guide rail (4) and form a sliding fit with the two sides of the linear guide rail (4). Fastening bolts (8) are inserted at the coaxial connection of the two support arms (5) and lock the upper slider (70), lower slider (71) and the two support arms (5) into one unit, so that the whole unit can slide along the linear guide rail (4).
2. The meter box with a split-type guide rail structure according to claim 1, characterized in that, The upper slider (70) is provided with a bolt through hole (9) for the fastening bolt (8) to pass through, and its bottom has a first slide rail part (10) that cooperates with one side of the linear guide rail (4). The lower slider (71) is provided with a threaded fixing seat (11) at its bottom, and its top has a second slide rail part (12) that cooperates with the other side of the linear guide rail (4).
3. The meter box with a split-type guide rail structure according to claim 2, characterized in that, The fastening bolt (8) passes through the two support arms (5) and the bolt through hole (9) in sequence and is then threadedly connected to the threaded fixing seat (11).
4. The meter box with a split-type guide rail structure according to claim 1, characterized in that, An angle limiting groove (13) is provided at the coaxial connection of the two support arms (5) to limit their opening angle.
5. A meter box with a split-type guide rail structure according to claim 1, characterized in that, The mounting base plate (2) has a storage and fixing hole (14) parallel to the linear guide rail (4) on its surface, which is used to allow the positioning member (15) to be inserted in the storage state to fix the support arm (5).
6. A meter box with a split-type guide rail structure according to claim 3, characterized in that, The bolt through hole (9) is a smooth hole, the threaded fixing seat (11) is a threaded hole, and the head of the fastening bolt (8) is pressed against the surface of the upper support arm (5).
7. A meter box with a split-type guide rail structure according to claim 5, characterized in that, The positioning element (15) is a positioning pin or screw.