A driver box that is easy to assemble and install

Abstract

This utility model discloses a drive box that is easy to assemble and install, relating to the field of electrical equipment accessories technology, including a snap-fit ​​lid and a bottom shell. A positioning structure between the bottom shell and the lid enables controllable rotational opening and closing, and a one-way locking structure forms a stable snap-fit ​​that is easy to insert but difficult to remove. An anti-pull structure is provided between the two, with the lower anti-pull teeth of the bottom shell and the upper anti-pull teeth of the lid interlocking with the pressure strip in a two-way manner to accommodate round or flat cables. The bottom shell has chamfered edges and a rounded bottom corner to facilitate the passage of openings, and integrates dual-position terminals to simplify connections. This utility model improves assembly efficiency and supports automation, enhances anti-pull performance, reduces installation difficulty, and is suitable for installation scenarios requiring passage through narrow openings.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment accessories technology, specifically to a drive box that is easy to assemble and install, and is particularly suitable for scenarios where installation is required through narrow openings such as ceilings. Background Technology

[0002] In the field of electrical equipment installation, the drive box, as a core component carrying circuit modules and connecting cables, directly affects the construction progress and reliability of use due to its assembly efficiency and ease of installation. Existing drive boxes have the following prominent problems in practical applications:

[0003] Traditional drive boxes typically use screws or multiple sets of snap-fit ​​mechanisms to secure the cover and bottom shell. Screws require individual tightening, which is time-consuming and prone to stripping. Screws, due to their fixed angle, require precise alignment; even slight misalignment can cause breakage. Furthermore, they are ill-suited for the high-speed demands of automated assembly lines. While some products employ a rotary snap-fit ​​design, the lack of limiting mechanisms makes them susceptible to damage from excessive rotation, further compressing internal components and increasing assembly difficulty.

[0004] The fixing of the drive box and the cable relies on anti-pull components. In the existing technology, these components are mostly independent parts (such as metal clamps and plastic binding rings), which need to be installed separately after the box is assembled. On the one hand, additional tools are required for clamping during installation, making the process cumbersome. On the other hand, the clamping surface of the clamps or binding rings is mostly flat or a single arc shape. For round cables, it is easy to cause local overtightening, which can lead to damage to the insulation layer. For flat cables, the contact area is insufficient, which can cause loosening. Under long-term vibration or cable pulling, they are prone to falling off, posing a safety hazard.

[0005] For concealed installation scenarios such as ceilings and walls, the driver box needs to pass through a pre-designed, narrow opening (typically only 5-10mm larger in diameter than the maximum size of the box). Existing driver boxes mostly use a cuboid or cube structure with right angles or acute angles. When passing through the opening, the right angles can easily create rigid friction with the hole wall, causing jamming. If the opening has burrs, the acute angles can even scratch the installer's hands or the cable insulation. Especially in batch installations (such as office building and shopping mall lighting systems), the installation time per box increases by more than 30%, significantly slowing down the construction progress.

[0006] Therefore, there is an urgent need for a driver box that integrates convenient assembly, reliable anti-pull protection, and efficient installation functions to solve the pain points of existing technologies. Utility Model Content

[0007] The purpose of this utility model is to address the problems of cumbersome assembly, insufficient anti-pull structure performance, and difficulty in passing through ceiling openings in the existing technology of drive boxes, and to provide a drive box that is easy to assemble and install, achieving the effects of quick snap-fit, stable anti-pull and convenient installation.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] A drive box that is easy to assemble and install includes a cover and a bottom shell that can be snapped together; a positioning structure that can rotate relative to each other is provided between the bottom shell and the cover, the positioning structure restricting the cover from excessive rotation to achieve convenient opening and closing; a one-way locking structure is also provided between the bottom shell and the cover; an anti-pull structure that cooperates with the cable is provided between the bottom shell and the cover; and a guide shape structure that facilitates passing through ceiling openings is provided on the bottom shell.

[0010] Furthermore, the anti-pull structure includes multiple rows of lower anti-pull teeth on the bottom shell and upper anti-pull teeth and pressure strip on the cover. The lower anti-pull teeth, upper anti-pull teeth and pressure strip all have an arc-shaped structure adapted to the shape of the cable. When the cover is fastened to the bottom shell, the arc-shaped structure of the lower anti-pull teeth and pressure strip near the outer side combines to form a complete hole. The lower anti-pull teeth near the inner side and the upper anti-pull teeth of the cover are staggered. After the staggering, an alternating clamping path is formed. The lower anti-pull teeth push upward and the upper anti-pull teeth press downward to form a bidirectional engagement.

[0011] Furthermore, the bottom shell is provided with terminal blocks, and the terminal blocks are equipped with dual terminals that have input / output stage functions.

[0012] Furthermore, the positioning structure includes positioning holes on both sides of the bottom shell and positioning posts on the corresponding positions of the lid. The positioning posts can rotate within the positioning holes, and the mounting positions are provided with a convex surface on the top surface of the lid to hold it in place and limit its excessive rotation.

[0013] Furthermore, the one-way locking structure includes equilateral triangular locking teeth on the fixing posts on both sides of the bottom shell and corresponding inverted triangular locking teeth on the inner side of the lid. The length of the inverted triangular locking teeth gradually increases from bottom to top. The inverted triangular locking teeth and the equilateral triangular locking teeth are engaged with each other on the inclined surface. The lower short locking teeth reduce the locking resistance, and the upper long locking teeth enhance the reverse locking.

[0014] Furthermore, the guide shape structure includes chamfers and bottom arc angles provided on the bottom shell and the lid.

[0015] Furthermore, the cable is round or flat, and the arc-shaped structure of the lower anti-pull teeth, upper anti-pull teeth, and pressure strip is adapted to the round or flat cable.

[0016] Furthermore, in the staggered anti-pull teeth, the lower anti-pull teeth near the inside can push the cable upward, while the upper anti-pull teeth of the cover can press the cable downward.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention utilizes a rotatable positioning structure to achieve controllable opening and closing of the lid and bottom shell. Combined with a one-way locking structure, it forms a stable "easy-in, difficult-out" latch, reducing resistance during manual and automated assembly and solving the problems of cumbersome and easily damaged traditional latching mechanisms. The staggered bidirectional interlocking design of the lower and upper anti-pull teeth and the pressure strip adapts to both round and flat cables, enhancing clamping stability and preventing cable loosening or excessive compression. Furthermore, its integration into the box structure eliminates the need for additional assembly steps, improving reliability. The chamfered corners and rounded bottom corners of the bottom shell reduce friction and jamming when passing through ceiling openings, lowering construction difficulty. Simultaneously, the integration of dual terminals simplifies circuit connections, further improving overall installation efficiency. Attached Figure Description

[0019] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of the overall exploded structure of this utility model;

[0021] Figure 2 is a schematic diagram of the box lid of this utility model in the open state;

[0022] Figure 3 is a detailed schematic diagram of the one-way interlocking structure of this utility model;

[0023] Figure 4 is a schematic diagram of the positioning structure of this utility model;

[0024] Figure 5 is a schematic diagram of the positioning structure of this utility model in the limiting state;

[0025] Figure 6 is a schematic diagram of the bottom shell guide structure of this utility model;

[0026] Figure 7 is a schematic diagram of the assembly of the two-position terminal of this utility model;

[0027] Figure 8 is a schematic diagram of the installation of this utility model on the ceiling.

[0028] Explanation of reference numerals in the attached diagram: 1 - Cover, 11 - Inverted triangular retaining teeth, 12 - Pressure strip, 13 - Upper anti-pull teeth, 14 - Top surface of cover, 15 - Positioning post; 3 - Bottom shell, 31 - Positive triangular retaining teeth, 32 - Lower anti-pull teeth, 33 - Fixing post, 34 - Positioning hole, 35 - Mounting position, 36 - Convex surface, 37 - Bottom arc corner, 38 - Chamfer; 2 - Two-position terminal. Detailed Implementation

[0029] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., 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, 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.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] As shown in Figure 1, this drive box mainly consists of a cover 1 and a bottom shell 3. The two are connected by a positioning structure and a one-way snap-fit ​​structure. An anti-pull structure is integrated inside, and the bottom shell 3 is provided with a guide shape structure.

[0034] 1. Positioning Structure

[0035] As shown in Figures 4 and 5, the mounting positions 35 on both sides of the bottom shell 3 are provided with positioning holes 34, and the corresponding position of the lid 1 is provided with a positioning post 15. After the positioning post 15 is inserted into the positioning hole 34, it can rotate freely to realize the opening and closing action of the lid 1 relative to the bottom shell 3. When the lid 1 is rotated backward to a preset angle, the convex surface 36 on the mounting position 35 abuts against the top surface 14 of the lid to limit excessive rotation and ensure that the opening and closing process is controllable.

[0036] 2. One-way locking structure

[0037] As shown in Figures 2 and 3, the bottom shell 3 has equilateral triangular locking teeth 31 on both sides of the fixing posts 33, and the inner side of the cover 1 has corresponding inverted triangular locking teeth 11. When fastened, the inverted triangular locking teeth 11 slide along the inclined surface of the equilateral triangular locking teeth 31. Because the lower locking teeth are shorter, the fastening resistance is small. After fastening, the upper long locking teeth lock in the opposite direction with the equilateral triangular locking teeth 31, forming a stable connection that is "easy to enter but difficult to exit", which is suitable for automated assembly lines.

[0038] 3. Tension-resistant structure

[0039] As shown in Figure 2, the bottom shell 3 has multiple rows of lower anti-pull teeth 32, and the cover 1 has upper anti-pull teeth 13 and pressure strip 12. All three are arc-shaped structures adapted to the cable. When fastened, the outer lower anti-pull teeth 32 and pressure strip 12 combine to form a complete hole to wrap the cable. The inner lower anti-pull teeth 32 and upper anti-pull teeth 13 are staggered: the lower anti-pull teeth 32 push upward, and the upper anti-pull teeth 13 press downward, forming an alternating clamping path to achieve bidirectional engagement for round or flat cables and enhance anti-pull performance.

[0040] 4. Guide shape structure

[0041] As shown in Figures 6 and 8, the bottom shell 3 has a chamfer 38 on its edge and an arc-shaped corner 37 at its bottom. During installation, the chamfer 38 reduces frictional resistance when passing through the ceiling opening, and the arc-shaped corner 37 prevents corner jamming and improves installation smoothness.

[0042] 5. Terminal integration

[0043] As shown in Figure 7, the bottom shell 3 is equipped with dual terminals 2, which integrate input and output stage functions, simplify circuit connection, and further improve assembly efficiency.

[0044] This invention utilizes a rotatable positioning structure to achieve controllable opening and closing of the lid and bottom shell. Combined with a one-way locking structure, it forms a stable "easy-in, difficult-out" latch, reducing resistance during manual and automated assembly and solving the problems of cumbersome and easily damaged traditional latching mechanisms. The staggered bidirectional interlocking design of the lower and upper anti-pull teeth and the pressure strip adapts to both round and flat cables, enhancing clamping stability and preventing cable loosening or excessive compression. Furthermore, its integration into the box structure eliminates the need for additional assembly steps, improving reliability. The chamfered corners and rounded bottom corners of the bottom shell reduce friction and jamming when passing through ceiling openings, lowering construction difficulty. Simultaneously, the integration of dual terminals simplifies circuit connections, further improving overall installation efficiency.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drive cassette that is easy to assemble and install, characterized by, It includes a snap-fit ​​lid and a bottom shell; a positioning structure that can rotate relative to the lid is provided between the bottom shell and the lid, the positioning structure restricts the lid from excessive rotation to achieve convenient opening and closing; a one-way locking structure is also provided between the bottom shell and the lid; an anti-pull structure that cooperates with the cable is provided between the bottom shell and the lid; the bottom shell is provided with a guide shape structure that facilitates passing through the ceiling opening.

2. The drive cartridge of claim 1, wherein, The anti-pull structure includes multiple rows of lower anti-pull teeth on the bottom shell and upper anti-pull teeth and pressure strip on the cover. The lower anti-pull teeth, upper anti-pull teeth and pressure strip all have an arc-shaped structure adapted to the shape of the cable. When the cover is fastened to the bottom shell, the arc-shaped structure of the lower anti-pull teeth and pressure strip near the outer side combines to form a complete hole. The lower anti-pull teeth near the inner side and the upper anti-pull teeth of the cover are staggered. After the staggering, an alternating clamping path is formed. The lower anti-pull teeth push upward and the upper anti-pull teeth press downward to form a bidirectional engagement.

3. The drive cartridge of claim 1, wherein, The bottom shell is provided with terminal blocks, and the terminal blocks are equipped with dual terminals that have input and output stage functions.

4. The drive cartridge of claim 1, wherein, The positioning structure includes positioning holes on both sides of the bottom shell and positioning posts on the corresponding positions of the lid. The positioning posts can rotate within the positioning holes, and the mounting positions are provided with a convex surface on the top surface of the lid to hold it in place and limit its excessive rotation.

5. The drive cartridge of claim 1, wherein, The one-way locking structure includes equilateral triangular locking teeth on the fixing posts on both sides of the bottom shell and corresponding inverted triangular locking teeth on the inner side of the lid. The length of the inverted triangular locking teeth gradually increases from bottom to top. The inverted triangular locking teeth and the equilateral triangular locking teeth are engaged with each other on the inclined surface. The shorter locking teeth at the bottom reduce the locking resistance, while the longer locking teeth at the top enhance the reverse locking.

6. The drive cartridge of claim 1, wherein, The guide shape structure includes chamfers and bottom arc corners on the bottom shell and lid.

7. The drive cartridge of claim 2, wherein, The cable is round or flat, and the arc-shaped structure of the lower anti-pull teeth, upper anti-pull teeth, and pressure strip is adapted to the round or flat cable.

8. The drive cartridge of claim 2, wherein, In the staggered anti-pull teeth, the lower anti-pull teeth near the inside can push the cable upward, while the upper anti-pull teeth on the cover can press the cable downward.

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