Multi-point fixed self-buckling type bottom box

Abstract

The utility model discloses a multi-point fixed self-buckling type bottom box which comprises a rectangular box body which is composed of a bottom wall, a left side wall, a right side wall, a front side wall and a rear side wall, the upper end of the rectangular box body is open, and the bottom wall, the left side wall, the right side wall, the front side wall and the rear side wall are all provided with knock-off holes used for threading. At least two first buckling parts which are uniformly distributed are arranged at the edge of an opening in the upper end of the rectangular box body corresponding to the left side wall, and at least one first inserting part which vertically protrudes outwards is arranged on the left side wall below the first buckling parts. A second buckling part corresponding to the first buckling part is arranged at the position, corresponding to the right side wall, of the edge of the opening in the upper end of the rectangular box body, the second buckling part and the first buckling part are symmetrical, and a second inserting part corresponding to the first inserting part is arranged on the right side wall. When a plurality of self-buckling type bottom boxes are connected side by side, the first buckling parts and the second buckling parts of the adjacent self-buckling type bottom boxes are buckled, and meanwhile, the first inserting parts and the second inserting parts are tightly matched and inserted to form multi-point fixing and buckling, so that stable connection is formed.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a self-locking junction box that can achieve multi-point fixing of multiple junction boxes. Background Technology

[0002] Junction boxes are typically installed inside walls to conceal and connect power cords, and form switches or sockets via panels, enabling the safe and stable use of various electrical circuits. Generally, each junction box has knockout holes on its five sides for the power cord to pass through. Side-by-side series connections between junction box units use a snap-fit ​​connection structure. For example, one edge of the junction box may have a C-shaped socket, and the opposite edge may have a plug-in post. When multiple junction boxes are connected side-by-side, the plug-in post is inserted into the C-shaped socket. Alternatively, the knockout holes may have outward-extending female sleeves, and the corresponding knockout holes on the opposite side walls may have outward-extending female sleeves. When multiple junction boxes are connected side-by-side, the female sleeves are tightly fitted into the female sleeves. Existing snap-fit ​​connections suffer from poor stability due to their simple design, and the aforementioned female sleeve connection structure requires significant material consumption, increasing costs. Therefore, a solution is needed for a simple yet stable side-by-side connection of junction boxes that does not require excessive material usage, thus addressing the aforementioned technical problems. Utility Model Content

[0003] In view of this, the present invention proposes a self-locking bottom box with multi-point fixing, which adopts a three-point fixed self-locking bottom box to form a stable three-point connection.

[0004] The technical solution disclosed in this utility model is a multi-point fixed self-locking bottom box, comprising a rectangular box body with an upper opening, consisting of a bottom wall, a left side wall, a right side wall, a front side wall, and a rear side wall. Each of the bottom, left, right, front, and rear side walls has knock-out holes for threading wires. At least two evenly distributed first fastening portions are provided at the upper opening edge of the rectangular box body corresponding to the left side wall. At least one vertically outwardly protruding first insertion portion is provided on the left side wall below the first fastening portions. A second fastening portion corresponding to the first fastening portions is provided at the upper opening edge of the rectangular box body corresponding to the right side wall. The second fastening portions are symmetrically positioned to the first fastening portions. A second insertion portion corresponding to the first insertion portion is provided on the right side wall. When multiple self-locking bottom boxes need to be connected side-by-side, the first fastening portions and second fastening portions of adjacent self-locking bottom boxes are fastened together, and simultaneously, the first insertion portions and second insertion portions are tightly fitted together.

[0005] As a preferred embodiment, the first fastening part includes two parts, evenly spaced at the left edge of the upper opening of the rectangular box. The first fastening part is a first protrusion protruding vertically outward, and the bottom of the first protrusion has an arc-shaped protrusion at the center position along the direction parallel to the left edge. Correspondingly, the second fastening part includes two parts, and the second fastening part is a second protrusion protruding vertically outward. The upper surface of the second protrusion has an arc-shaped groove at the center position along the direction parallel to the right edge of the upper opening.

[0006] Furthermore, the middle part of the arc-shaped protrusion at the bottom of the first fastening part is provided with a raised square strip that intersects the arc-shaped protrusion perpendicularly, and the height of the raised square strip is higher than that of the arc-shaped protrusion; the middle part of the arc-shaped groove on the upper surface of the second fastening part is provided with a square groove that matches the raised square strip, the depth of the square groove is deeper than the depth of the arc-shaped groove, and the opening of the square groove extends to the outside of the second protrusion to form a notch.

[0007] Furthermore, the bottom of the first fastening part is configured as a first slope surface corresponding to the outer side of the arc-shaped protrusion, and the outer side of the arc-shaped groove of the second fastening part is configured as a second slope surface.

[0008] As a preferred embodiment, each of the first and second plug-in portions is provided as one, and the first and second plug-in portions are respectively located at the center of the left side wall and the center of the right side wall.

[0009] Furthermore, the first insertion part is a solid cylindrical insertion part, and the second insertion part is a hollow cylindrical insertion part.

[0010] The junction box designed using this technical solution has the following advantages: First and second fastening parts are provided on the opposite sides of the upper opening of the junction box, with at least two of each type to form at least two fixed connection points. Simultaneously, compatible first and second plug-in parts are provided on the corresponding side walls. The first and second fastening parts utilize arc-shaped protrusions and grooves, respectively, allowing for pre-insertion of the first and second plug-in parts to align their heights when adjacent junction boxes are connected side-by-side. Then, the first and second plug-in parts are further tightened, and the arc-shaped protrusions and grooves of the first and second plug-in parts quickly form a self-locking mechanism. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model from another perspective.

[0013] Figure 3 This is a partially enlarged schematic diagram of the bottom structure of the first fastening part of this utility model.

[0014] Figure 4 This is the main structural view and perspective view of the overall structure of this utility model.

[0015] Figure 5 This is a schematic diagram of the two bottom boxes of this utility model connected side by side.

[0016] Figure label:

[0017] 1. Bottom wall; 2. Left side wall; 3. Right side wall; 4. Front side wall; 5. Rear side wall; 21. First fastening part; 22. First insertion part; 211. Arc-shaped protruding strip part; 212. Protruding square strip part; 213. First slope surface; 31. Second fastening part; 32. Second insertion part; 311. Arc-shaped groove part; 312. Square groove part; 313. Second slope surface. Detailed Implementation

[0018] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this disclosure.

[0019] Please refer to Figures 1 to 5 This document provides a specific embodiment of a multi-point fixed self-locking bottom box. The self-locking bottom box includes a rectangular box body with an open top, consisting of a bottom wall 1, a left side wall 2, a right side wall 3, a front side wall 4, and a rear side wall 5. Each of the bottom wall 1, left side wall 2, right side wall 3, front side wall 4, and rear side wall 5 has knock-out holes for threading wires. Two evenly distributed first fastening portions 21 are provided at the edge of the upper opening of the rectangular box body corresponding to the left side wall 2. A first insertion portion 22 protruding vertically outward is provided on the left side wall 2 below the first fastening portions 21. A second fastening portion 31 corresponding to the first fastening portions 21 is provided at the edge of the upper opening of the rectangular box body corresponding to the right side wall 3. The second fastening portion 31 is symmetrical to the first fastening portion 21. A second insertion portion 32 corresponding to the first insertion portion 22 is provided on the right side wall 3. When multiple self-locking bottom boxes need to be connected side by side, the first latching part 21 and the second latching part 31 of adjacent self-locking bottom boxes are latched together, and at the same time the first insertion part 22 and the second insertion part 32 are tightly fitted together.

[0020] Furthermore, the first fastening part 21 includes two parts, evenly spaced at the left edge of the upper opening of the rectangular box. The first fastening part 21 is a first protrusion protruding vertically outward, and the bottom of the first protrusion has an arc-shaped protrusion 211 at the center of the direction parallel to the left edge. Correspondingly, the second fastening part 31 includes two parts. The second fastening part 31 is a second protrusion protruding vertically outward, and the upper surface of the second protrusion has an arc-shaped groove 311 at the center of the direction parallel to the right edge of the upper opening. The top surface of the first fastening part 21 is flush with the top surface of the upper opening edge of the box, while the second fastening part 31 is set at a position slightly lower than the top surface of the right edge of the upper opening edge of the box. This is so that when the two bottom boxes are connected side by side, the arc-shaped protrusion 211 at the bottom of the first fastening part 21 of one bottom box is adapted to engage with the arc-shaped groove 311 on the top surface of the second fastening part 31 of the other bottom box.

[0021] As a further preferred embodiment, the middle of the arc-shaped protrusion 211 at the bottom of the first fastening part 21 is provided with a raised square strip 212 that intersects the arc-shaped protrusion 211 perpendicularly, and the height of the raised square strip 212 is higher than that of the arc-shaped protrusion 211; the middle of the arc-shaped groove 311 on the upper surface of the second fastening part 31 is provided with a square groove 312 that matches the raised square strip 212, the depth of the square groove 312 is deeper than the depth of the arc-shaped groove 311, and the opening of the square groove 312 extends to the outside of the second protrusion to form a notch. The arc-shaped protruding strip 211 provided in the first fastening part 21 and the arc-shaped groove 311 provided in the second fastening part 31 serve as an X-direction connection and fixing position when the two bottom boxes are fastened together. Correspondingly, the protruding square strip 212 and the square groove 312 are provided in the middle of the corresponding arc-shaped protruding strip 211 and the arc-shaped groove 311, which serve as a Y-direction connection and fixing position when the two bottom boxes are fastened together. The X and Y directions are perpendicular intersection directions on the same horizontal plane. In this way, the two bottom boxes are not easy to separate along the left side wall 2 and the right side wall 3, and are not easy to shake along the front side wall 4 and the rear side wall 5. Combined with the first insertion part 22 and the second insertion part 32, multi-point fixation is achieved.

[0022] Preferably, the bottom of the first fastening part 21 is provided with a first slope 213 corresponding to the outer side of the arc-shaped protrusion part 211, and the outer side of the arc-shaped groove part 311 of the second fastening part 31 is provided with a second slope 313. With the provision of the first slope 213 and the second slope 313, when two adjacent bottom boxes are connected side by side, the first insertion part 22 and the second insertion part 32 are pre-inserted, which helps the first fastening part 21 and the second fastening part 31 to find the pre-fastening height position. While the first slope 213 and the second slope 313 can be easily pushed in, the arc-shaped protrusion part 211 and the arc-shaped groove part 311 are fastened together, and the first insertion part 22 and the second insertion part 32 are also tightened.

[0023] As a preferred embodiment, each of the first insertion part 22 and the second insertion part 32 is provided as a single unit, and the first insertion part 22 and the second insertion part 32 are respectively located at the center of the left side wall 2 and the center of the right side wall 3. The first insertion part 22 is a solid cylindrical insertion part, and the second insertion part 32 is a hollow cylindrical insertion part. Providing only one of the first insertion part 22 and the second insertion part 32 is sufficient; this overall solution achieves a stable connection without consuming excessive materials.

[0024] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A multi-point fixed self-locking bottom box, comprising a rectangular box body with an open top, consisting of a bottom wall, a left side wall, a right side wall, a front side wall, and a rear side wall, wherein the bottom wall, left side wall, right side wall, front side wall, and rear side wall are all provided with knock-out holes for threading wires, characterized in that, At least two evenly distributed first fastening parts are provided at the upper opening edge of the rectangular box corresponding to the left side wall, and at least one vertically outward protruding first insertion part is provided on the left side wall below the first fastening parts. The upper opening edge of the rectangular box corresponding to the right side wall is provided with a second fastening part corresponding to the first fastening part. The second fastening part and the first fastening part are in a symmetrical position. The right side wall is provided with a second insertion part corresponding to the first insertion part. When multiple self-locking bottom boxes are connected side by side, the first latching part and the second latching part of adjacent self-locking bottom boxes are latched together, and at the same time the first insertion part and the second insertion part are tightly fitted together.

2. The self-locking base box with multi-point fixing according to claim 1, characterized in that, The first fastening part includes two parts, which are evenly spaced at the left edge of the upper opening of the rectangular box. The first fastening part is a first protrusion that protrudes vertically outward, and the bottom of the first protrusion has an arc-shaped protrusion at the center of the direction parallel to the left edge. The second fastening part is a second protrusion that protrudes vertically outward, and the upper surface of the second protrusion has an arc-shaped groove at the center of the direction parallel to the right edge of the upper opening.

3. The self-locking base box with multi-point fixing according to claim 2, characterized in that, The first fastening part has a raised square strip at the middle of the arc-shaped protrusion at the bottom of the first fastening part, which is perpendicular to the arc-shaped protrusion and the height of the raised square strip is higher than that of the arc-shaped protrusion. The second fastening part has a square groove at the middle of the arc-shaped groove on the upper surface of the second fastening part, which matches the raised square strip. The depth of the square groove is deeper than that of the arc-shaped groove, and the opening of the square groove extends to the outside of the second protrusion to form a notch.

4. The self-locking base box with multi-point fixing according to claim 3, characterized in that, The bottom of the first fastening part is configured as a first slope surface on the outer side of the arc-shaped protrusion, and the outer side of the arc-shaped groove of the second fastening part is configured as a second slope surface.

5. The self-locking base box with multi-point fixing according to claim 1, characterized in that, Each of the first and second plug-in portions is provided as one, and the first and second plug-in portions are respectively located at the center of the left side wall and the center of the right side wall.

6. The self-locking base box with multi-point fixing according to claim 5, characterized in that, The first insertion part is a solid cylindrical insertion part, and the second insertion part is a hollow cylindrical insertion part.

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