Distribution box fixed inner support frame
By designing a sliding internal support frame and elastic locking components, the problem of poor versatility of traditional distribution box support structures is solved, enabling flexible installation and simplified maintenance, and improving the applicability and operational efficiency of the distribution box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING FENGSHI RONGKUN ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-16
Smart Images

Figure CN224367411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distribution box technology, and in particular to a fixed internal support frame for distribution boxes. Background Technology
[0002] As core equipment for power distribution and control, distribution boxes are widely used in industrial plants, commercial buildings, and residential homes. However, the internal support structure of traditional distribution boxes suffers from poor versatility, complex installation and maintenance, and inconvenient operation, making it difficult to meet the diverse installation needs of modern electrical systems.
[0003] Traditional distribution boxes typically employ fixed mounting brackets for their internal support structures, directly fixing the support components inside the box via welding or bolts. This type of bracket has a fixed position and cannot be flexibly adjusted according to the size, quantity, and installation method of electrical components. Furthermore, the internal support structure of traditional distribution boxes is poorly designed for ease of maintenance. When repairing or replacing internal electrical components, operators must disconnect numerous cables and laboriously remove the components from the confined space, a cumbersome process that can easily lead to circuit faults. Utility Model Content
[0004] This utility model solves the problems in related technologies and proposes a fixed internal support frame for distribution boxes.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] The distribution box has a fixed internal support frame, including a distribution box shell. Two sets of positioning frames are symmetrically installed on the inner side of the rear end of the distribution box shell. The positioning frames are fixedly connected to the distribution box shell. An inner support frame is installed on the front end of the positioning frame. The inner support frame includes a connecting vertical frame and a cross frame for installing electrical components. The cross frame is evenly arranged from top to bottom in the distribution box shell. The connecting vertical frame is fixedly installed at both ends of the cross frame and is sleeved on the positioning frame. The connecting vertical frame and the positioning frame are slidably connected. The positioning frame is also equipped with an elastic locking member for locking the connecting vertical frame. The elastic locking member is fixedly connected to the positioning frame.
[0007] As a preferred embodiment, the positioning frame includes a frame and a sliding rod frame for sliding installation of the connecting vertical frame. The frame is fixedly installed on the inner side of the distribution box housing, and the sliding rod frame is installed at both ends of the front end face of the frame, and the sliding rod frame is fixedly connected to the frame.
[0008] As a preferred embodiment, the frame has connection holes at both ends, a limit plate is installed at the outer end of the slide bar frame, the limit plate is fixedly connected to the slide bar frame, and a buffer sleeve is also fitted on the slide bar frame.
[0009] As a preferred embodiment, the connecting vertical frame includes a right-angle base plate and an outer mounting plate for mounting the equipment horizontal frame. The right-angle base plate is sleeved and installed on the slide bar frame, and the outer mounting plate is integrally formed and disposed at the front end of the right-angle base plate.
[0010] As a preferred embodiment, the right-angle base plate is provided with a connecting rod sleeve that slides with the slide bar frame. The connecting rod sleeve is integrally formed with the right-angle base plate, and the outer plate is provided with a number of positioning holes evenly distributed from top to bottom.
[0011] As a preferred embodiment, the equipment crossbeam includes a bent middle plate and side ear plates. The side ear plates are integrally formed and disposed at both ends of the bent middle plate, and the side ear plates are fixedly connected to the outer plate by bolts.
[0012] As a preferred embodiment, the elastic locking element includes a concave frame and a triangular locking block, wherein the triangular locking block is integrally formed and disposed at both ends of the concave frame.
[0013] As a preferred embodiment, a connecting shell is fixedly installed in the middle of the right-angle base plate, and a slot corresponding to the triangular block is opened on the side of the connecting shell. A pressing frame for releasing the locking of the triangular block is slidably installed on the connecting shell, and a reset spring is fixedly installed between the pressing frame and the connecting shell.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The internal support frame of this application can slide and adjust its position back and forth on the positioning frame, and the installation position of the equipment crossbeam can be flexibly adjusted as needed, which can adapt to the installation requirements of different electrical components and improve the versatility and applicability of the distribution box. The components are connected by bolts or sliding fit, which makes the installation and disassembly of the internal support frame simpler and faster, reduces the difficulty of installation and maintenance, and improves work efficiency. When it is necessary to disassemble or assemble components, it can be directly pulled to the front end, which is easier to operate. The design of the elastic locking element and the pressing frame makes the locking and unlocking operation of the internal support frame more convenient. Simply press the pressing frame to unlock, and it will automatically reset to lock after being released. The operation is simple and easy to understand. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a perspective view of the positioning frame, inner support frame, and elastic locking element in an embodiment of this utility model.
[0017] Figure 3 yes Figure 2 Side view of the device shown;
[0018] Figure 4 This is a perspective view of the positioning frame and the elastic locking element cooperating in an embodiment of this utility model;
[0019] Figure 5 This is a perspective view of the inner support frame in an embodiment of this utility model.
[0020] In the diagram: 1. Distribution box housing; 2. Positioning frame; 21. Frame; 211. Connecting hole; 22. Sliding rod frame; 221. Limiting plate; 222. Buffer sleeve; 3. Inner support frame; 31. Connecting vertical frame; 311. Right angle base plate; 312. Outer plate; 313. Connecting rod sleeve; 314. Positioning hole; 32. Equipment cross frame; 321. Bending middle plate; 322. Side ear plate; 33. Connecting shell; 331. Slot; 332. Pressing frame; 333. Return spring; 4. Elastic locking element; 41. Concave frame; 42. Triangular locking block. Detailed Implementation
[0021] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0024] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0025] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0027] Reference Figure 1 , Figure 2 and Figure 3As shown, the distribution box has a fixed internal support frame, including a distribution box shell 1. Two sets of positioning frames 2 are symmetrically installed on the inner side of the rear end of the distribution box shell 1. The positioning frames 2 are fixedly connected to the distribution box shell 1. An inner support frame 3 is installed on the front end of the positioning frame 2. The inner support frame 3 includes a connecting vertical frame 31 and a horizontal frame 32 for installing electrical components. The horizontal frame 32 is evenly arranged in the distribution box shell 1 from top to bottom. The connecting vertical frame 31 is fixedly installed at both ends of the horizontal frame 32. The connecting vertical frame 31 is sleeved on the positioning frame 2 and is slidably connected to the positioning frame 2. The positioning frame 2 is also equipped with an elastic locking member 4 for locking the connecting vertical frame 31. The elastic locking member 4 is fixedly connected to the positioning frame 2. By installing a positioning frame 2 on the inner side of the rear end of the distribution box housing 1, and fitting the connecting vertical frame 31 of the inner support frame 3 onto the positioning frame 2 and sliding it back and forth, while simultaneously setting an elastic locking element 4 to lock the connecting vertical frame 31, the inner support frame 3 can slide back and forth on the positioning frame 2 to adjust its position according to actual needs. After adjusting to the appropriate position, it is locked by the elastic locking element 4, which facilitates the installation and maintenance of electrical components. Moreover, this structural design makes the connection between the inner support frame 3 and the distribution box housing 1 more stable and can better support the electrical components. The distribution box housing 1 can be made of high-quality cold-rolled steel plate, and the thickness is selected according to actual needs, generally 1.5-2.5mm.
[0028] Reference Figure 3 and Figure 4 As shown, the positioning frame 2 includes a frame 21 and a sliding rod frame 22 for sliding installation of the connecting vertical frame 31. The frame 21 is fixedly installed on the inner side of the distribution box housing 1, and the sliding rod frame 22 is installed at both ends of the front end face of the frame 21, and the sliding rod frame 22 is fixedly connected to the frame 21. The positioning frame 2 adopts the structure of the frame 21 and the sliding rod frame 22. The frame 21 is used to fix it to the inner side of the distribution box housing 1, and the sliding rod frame 22 provides a sliding track for the connecting vertical frame 31, ensuring that the connecting vertical frame 31 can slide smoothly on the positioning frame 2, improving the smoothness and stability of the position adjustment of the inner support frame 3. The frame 21 can be made of Q235 steel, which has good strength and toughness. The sliding rod frame 22 can be made of stainless steel, with a smooth surface to reduce friction. The frame 21 has connection holes 211 at both ends, and a limit plate 221 is installed on the outer end of the slide rod frame 22. The limit plate 221 is fixedly connected to the slide rod frame 22, and a buffer sleeve 222 is also fitted on the slide rod frame 22. The connection holes 211 at both ends of the frame 21 facilitate the fixed installation of the frame 21 and the distribution box housing 1, improving the stability of the installation. The limit plate 221 at the outer end of the slide rod frame 22 can prevent the connecting vertical frame 31 from slipping off the slide rod frame 22, thus playing a limiting role. The buffer sleeve 222 fitted on the slide rod frame 22 can buffer the sliding of the connecting vertical frame 31, reducing collisions and wear, and extending the service life of the equipment. The buffer sleeve 222 can be made of rubber, which has good cushioning performance.
[0029] Reference Figure 2 , Figure 3 and Figure 5 As shown, the connecting vertical frame 31 includes a right-angle base plate 311 and an outer mounting plate 312 for mounting the equipment horizontal frame 32. The right-angle base plate 311 is sleeved on the slide rod frame 22, and the outer mounting plate 312 is integrally formed at the front end of the right-angle base plate 311. The connecting vertical frame 31 adopts the structure of the right-angle base plate 311 and the outer mounting plate 312. The right-angle base plate 311 is sleeved on the slide rod frame 22 to achieve a sliding connection, and the outer mounting plate 312 is used to install the equipment horizontal frame 32. This structural design makes the installation and disassembly of the connecting vertical frame 31 more convenient, and also facilitates the installation and adjustment of the equipment horizontal frame 32. The right-angle base plate 311 is provided with a connecting rod sleeve 313 that slides with the slide rod frame 22. The connecting rod sleeve 313 is integrally formed with the right-angle base plate 311, and the outer mounting plate 312 has a plurality of positioning holes 314 evenly formed from top to bottom. The connecting rod sleeve 313 on the right-angle base plate 311 slides in conjunction with the sliding rod bracket 22, ensuring the stability and accuracy of the sliding of the connecting vertical frame 31. The evenly spaced positioning holes 314 on the outer mounting plate 312 facilitate the fixing and installation of the equipment cross frame 32 with bolts, and allow for adjustment of the installation position of the equipment cross frame 32 as needed, improving the flexibility of equipment installation. The equipment cross frame 32 includes a bent middle plate 321 and side ear plates 322. The side ear plates 322 are integrally formed at both ends of the bent middle plate 321 and are fixedly connected to the outer mounting plate 312 with bolts. The structure of the equipment cross frame 32, with the bent middle plate 321 and side ear plates 322 fixedly connected to the outer mounting plate 312 with bolts, makes the installation of the equipment cross frame 32 more secure, better able to bear the weight of electrical components, and also facilitates disassembly and replacement.
[0030] Reference Figure 4 and Figure 5 As shown, the elastic locking element 4 includes a concave frame 41 and a triangular locking block 42, with the triangular locking block 42 integrally formed at both ends of the concave frame 41. The elastic locking element 4 uses a structure of concave frame 41 and triangular locking block 42. The triangular locking block 42 can cooperate with the slot 331 on the connecting shell 33 to achieve a locking function. The concave frame 41 provides elasticity, allowing the triangular locking block 42 to extend and retract within a certain range, facilitating locking and unlocking operations and improving the ease of adjusting the position of the inner support frame 3. A connecting shell 33 is fixedly installed in the middle of the right-angle base plate 311. A slot 331 corresponding to the triangular locking block 42 is opened on the side of the connecting shell 33, and a pressing frame 332 for releasing the triangular locking block 42 is slidably installed on the connecting shell 33. A return spring 333 is also fixedly installed between the pressing frame 332 and the connecting shell 33. The slot 331 on the connecting shell 33 cooperates with the triangular block 42 to achieve locking. The pressing frame 332 can release the locking of the triangular block 42. The return spring 333 can make the pressing frame 332 automatically return after the pressing is released. This structural design makes the locking and unlocking operation of the inner support frame 3 more convenient and quick, and improves work efficiency.
[0031] In this embodiment, during actual use, the right-angle base plate 311 of the connecting vertical frame 31 is fitted onto the slide rod frame 22 via the connecting rod sleeve 313, allowing the connecting vertical frame 31 to slide back and forth on the slide rod frame 22. The concave frame 41 of the elastic locking member 4 is fixedly installed on the positioning frame 2. The concave frame 41 can be made of spring steel, which has good elasticity. When the connecting vertical frame 31 slides to the appropriate position, the triangular locking block 42 engages with the locking groove 331 of the connecting shell 33, thereby locking the inner support frame.
[0032] When the position of the inner support frame needs to be adjusted, press the pressing frame 332 to disengage the triangular locking block 42 from the slot 331, allowing the vertical connecting frame 31 to slide and adjust its position. After adjustment, release the pressing frame 332, and the return spring 333 will reset the pressing frame 332, causing the triangular locking block 42 to re-engage in the slot 331, thus locking it in place. This facilitates better operation of electrical components, and allows for easy front and rear pulling, providing some slack for wiring. When stored in the distribution box housing 1, the cables can be folded.
[0033] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.
Claims
1. A fixed inner support frame for a distribution box, including a distribution box shell (1), characterized in that: Two sets of positioning frames (2) are symmetrically installed on the inner side of the rear end of the distribution box shell (1). The positioning frames (2) are fixedly connected to the distribution box shell (1). An inner support frame (3) is installed on the front end face of the positioning frame (2). The inner support frame (3) includes a connecting vertical frame (31) and a horizontal frame (32) for installing electrical components. The horizontal frame (32) is evenly arranged in the distribution box shell (1) from top to bottom. The connecting vertical frame (31) is fixedly installed at both ends of the horizontal frame (32). The connecting vertical frame (31) is sleeved on the positioning frame (2). The connecting vertical frame (31) and the positioning frame (2) are slidably connected. An elastic locking piece (4) for locking the connecting vertical frame (31) is also installed on the positioning frame (2). The elastic locking piece (4) is fixedly connected to the positioning frame (2).
2. The fixed inner support frame of the distribution box according to claim 1, characterized in that: The positioning frame (2) includes a frame (21) and a sliding rod frame (22) for sliding installation of the connecting vertical frame (31). The frame (21) is fixedly installed on the inner side of the distribution box shell (1), and the sliding rod frame (22) is installed at both ends of the front end face of the frame (21), and the sliding rod frame (22) is fixedly connected to the frame (21).
3. The fixed inner support frame of the distribution box according to claim 2, characterized in that: The frame (21) has connection holes (211) at both ends. The outer end of the slide bar frame (22) is fitted with a limiting plate (221). The limiting plate (221) is fixedly connected to the slide bar frame (22), and a buffer sleeve (222) is also fitted on the slide bar frame (22).
4. The fixed inner support frame of the distribution box according to claim 3, characterized in that: The connecting vertical frame (31) includes a right-angle base plate (311) and an outer mounting plate (312) for mounting the equipment cross frame (32). The right-angle base plate (311) is sleeved on the slide bar frame (22), and the outer mounting plate (312) is integrally formed and disposed at the front end of the right-angle base plate (311).
5. The distribution box fixed inner support frame according to claim 4, characterized in that: The right-angle base plate (311) is provided with a connecting rod sleeve (313) that slides with the slide rod frame (22). The connecting rod sleeve (313) is integrally formed with the right-angle base plate (311). The outer plate (312) has a number of positioning holes (314) evenly opened from top to bottom.
6. The distribution box fixed inner support frame according to claim 5, characterized in that: The equipment crossbeam (32) includes a bending middle plate (321) and a side ear plate (322). The side ear plate (322) is integrally formed and disposed at both ends of the bending middle plate (321), and the side ear plate (322) is fixedly connected to the outer plate (312) by bolts.
7. The fixed inner support frame of the distribution box according to claim 6, characterized in that: The elastic locking element (4) includes a concave frame (41) and a triangular locking block (42), the triangular locking block (42) being integrally formed and disposed at both ends of the concave frame (41).
8. The fixed inner support frame of the distribution box according to claim 7, characterized in that: A connecting shell (33) is fixedly installed in the middle of the right-angle base plate (311). The connecting shell (33) has a slot (331) on its side corresponding to the triangular block (42). A pressing frame (332) for releasing the triangular block (42) is slidably installed on the connecting shell (33). A reset spring (333) is also fixedly installed between the pressing frame (332) and the connecting shell (33).