A junction box connector with a rotary quick-lock mounting structure
The junction box connector with a rotary quick-lock installation structure solves the problems of low installation efficiency and inconvenient operation of traditional junction boxes, enabling fast and reliable installation and maintenance, and significantly improving convenience, especially in space-constrained locations.
Patent Information
- Application Number
- CN202522186176.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-10-16
AI Technical Summary
Traditional junction box installation methods are inefficient, inconvenient to operate, and difficult to maintain, especially in confined spaces or high-altitude locations where the labor intensity is high.
It adopts a rotary quick-lock installation structure, which uses a separate mounting base and housing design to achieve quick, tool-free locking by utilizing the special geometry of the locking pin and locking groove, combined with a sealing gasket to ensure reliability.
It improves installation efficiency, reduces labor intensity, and ensures the reliability and convenience of locking, especially significantly improving the ease of installation and maintenance in space-constrained locations.
Smart Images

Figure CN224947246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connection and installation technology, and in particular to a junction box connector for industrial equipment, automated production lines and building wiring. More specifically, it relates to a junction box connector with a rotary quick-lock installation structure that enables quick, tool-free installation. Background Technology
[0002] Junction boxes need to be securely fixed to mounting surfaces such as walls, equipment racks, or control panels during installation. Traditional fixing methods typically rely on screw tightening, such as fixing through screw holes inside the box or through external flanges. These traditional installation methods generally have several drawbacks: First, they are inefficient, as installers must hold the entire junction box while simultaneously aligning and tightening multiple screws one by one with tools, a tedious and time-consuming process. Second, they are inconvenient to operate; in difficult locations such as confined spaces or at heights, supporting the box and operating tools is awkward and physically demanding. Finally, maintenance and replacement are difficult; if the junction box needs to be replaced, the entire process of disassembling and reinstalling screws must be repeated. Utility Model Content
[0003] The purpose of this utility model is to overcome the problems of low efficiency, inconvenient operation, and difficult maintenance of traditional junction box installation methods in the background art, and to provide a junction box connector with a rotating quick-lock installation structure that has an ingenious structure and can achieve fast and reliable installation.
[0004] To achieve the above objectives, this utility model provides a junction box connector with a rotary quick-lock mounting structure, comprising: A mounting base, wherein at least one locking pin is vertically disposed on one surface of the mounting base; A box body, wherein at least one locking groove corresponding to each locking pin is provided on the bottom of the box body; Each locking pin can enter a corresponding locking groove, and when the housing rotates relative to the mounting base, each locking pin interacts with the side wall of the corresponding locking groove to change the housing from an unlocked position to a locked position.
[0005] Preferably, the locking groove includes, in sequence along the rotation direction of the housing: A wide entry area for guiding the locking pin into place; A circular arc segment with a constant radius used for rotational transitions; An eccentric section with a gradually changing radius is used to wedge the locking pin. When the locking pin moves within the eccentric section corresponding to the locking groove, the locking pin is wedged by the side wall of the eccentric section, thereby fixing the box in the locked position by friction.
[0006] Preferably, the end of the eccentric section is provided with a limiting point to limit the locking pin when the locking pin reaches the end of the locking groove.
[0007] Preferably, the locking pin is a cylindrical pin.
[0008] Preferably, a sealing gasket is also provided at the bottom of the box, and each locking groove is located within the range of the sealing gasket.
[0009] Preferably, there are three locking pins and three locking slots, and the locking pins and locking slots are arranged in a circular array around the rotation center of the mounting base and the box.
[0010] Preferably, both the housing and the mounting base are made of engineering plastic or metal.
[0011] Preferably, the mounting base is further provided with mounting holes for fixing the mounting base to a mounting surface.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model's junction box connector fundamentally changes the cumbersome installation method of traditional junction boxes by decoupling the installation process into two independent steps: "fixing the base" and "rotating the box." Installers can easily fix the lightweight mounting base in place first, and then securely lock the box with a simple, quick, tool-free rotation, greatly improving installation efficiency and reducing labor intensity, especially in difficult locations with limited space. Its ingenious eccentric wedge structure and limiting locking point design ensure reliable locking and clear installation feedback. The entire solution makes the installation, maintenance, and replacement of junction boxes convenient and efficient. Attached Figure Description
[0013] Figure 1 This is an exploded perspective view of a junction box connector according to an embodiment of the present invention; Figure 2 yes Figure 1 Bottom view of the middle box.
[0014] Explanation of reference numerals in the attached drawings: 10, housing; 11, locking groove; 111, wide inlet area; 112, arc segment; 113, eccentric segment; 12, sealing gasket; 20, mounting base; 21, locking pin; 22, mounting hole. Detailed Implementation
[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the following will be combined with Figure 1 and Figure 2A preferred embodiment of the present invention will be described in detail below.
[0016] Please see Figure 1 This utility model provides a junction box connector with a rotary quick-lock mounting structure, which mainly consists of two core components: a housing 10 and a mounting base 20. This two-piece, separate design is the basis for achieving quick installation and disassembly.
[0017] The mounting base 20 is a generally square flat substrate with mounting holes 22 for fixing it to a mounting surface such as a wall or equipment panel. In this embodiment, one mounting hole 22 is provided at each of the four corners of the mounting base 20. Three locking pins 21 arranged in a circular array are vertically arranged on the upper surface of the mounting base 20 (i.e., the side facing the housing 10). The locking pins 21 are preferably solid cylindrical pins with sufficient mechanical strength. Alternatively, the number of locking pins 21 can be two, four, or more, but three pins provide the most stable three-point fixation with the least material consumption. Both the mounting base 20 and the housing 10 can be made of high-strength engineering plastics (such as reinforced nylon, PC / ABS alloy) or metal materials (such as aluminum alloy).
[0018] Please see Figure 2 The housing 10 is the main structure of the junction box, and its bottom has three locking grooves 11 that correspond one-to-one with the position and number of locking pins 21 on the mounting base 20. These three locking grooves 11 are also arranged in a circular array around the rotation center of the housing 10. The key innovation of this utility model lies in the special geometric shape of the locking grooves 11. Along the clockwise rotation direction, each locking groove 11 sequentially includes three functional sections: 1. Wide entrance area 111: This area has a large opening, like a funnel. Its main function is to facilitate alignment during installation. Even if there is a slight deviation, the locking pin 21 can easily fall into the groove, which greatly improves the error tolerance and convenience of installation. 2. Arc segment 112: This area is an arc-shaped track with a constant radius. When the locking pin 21 slides within this segment, the box 10 only undergoes pure rotational motion with almost no resistance, providing the user with a smooth operating feel; 3. Eccentric section 113: This area is the core of the locking function. It is a spiral track with a gradually changing radius, whose sidewalls gradually tighten towards the center of rotation. When the locking pin 21 enters and moves within this section, it is wedged tighter and tighter, thereby securing the housing 10 firmly to the mounting base 20 through enormous friction.
[0019] To provide clear locking feedback and prevent accidental loosening, a small protrusion or recess is provided at the end of the track of the eccentric section 113, forming a limiting stop 1131. When the locking pin 21 rotates into place and passes this stop, the user will feel a "click" tactile feedback, clearly knowing that it has been locked in place.
[0020] Furthermore, to achieve a waterproof and dustproof seal after installation, a sealing gasket groove is formed around the bottom of the housing 10, surrounding all the locking grooves 11, to accommodate an O-ring or irregularly shaped sealing gasket 12. When the housing 10 is installed onto the base 20, the sealing gasket 12 is pressed between the housing 10 and the base 20. The advantage of this design is that the entire locking mechanism (locking pin 21 and locking groove 11) is within the protection range of the sealing ring 12, ensuring the reliability of the connection.
[0021] The method of using this utility model is very convenient: First, the installer only needs to fix the lightweight mounting base 20 to the mounting surface with screws through the mounting holes 22. Then, pick up the box 10, align the wide entrance area 111 of the three locking grooves 11 on its bottom with the three locking pins 21 on the base 20, and put it down. Finally, rotate the box 10 clockwise by a certain angle, and you will feel the pins 21 slide through the arc section 112 and be gradually wedged in the eccentric section 113 until they reach the limit stop point 1131 to complete the locking. The whole process requires no additional tools and is fast and efficient.
[0022] As a further extension and refinement of this solution, to make the user operation more intuitive, alignment marks, such as arrows or colored dots, can be set on the bottom of the box 10 and the upper surface of the mounting base 20 to indicate the unlock position and the locking position, respectively.
[0023] The above description is merely a preferred embodiment of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A junction box connector with a rotary quick-lock mounting structure, characterized in that, include: A mounting base (20) having at least one locking pin (21) vertically disposed on one surface of the mounting base (20); A box body (10) has at least one locking groove (11) at the bottom of the box body (10) that corresponds to the locking pin (21). Each locking pin (21) can enter the corresponding locking groove (11), and when the housing (10) rotates relative to the mounting base (20), each locking pin (21) interacts with the sidewall of the corresponding locking groove (11) to change the housing (10) from an unlocked position to a locked position.
2. The junction box connector according to claim 1, characterized in that, The locking groove (11) includes, in sequence along the rotation direction of the housing (10): A wide inlet area (111) for guiding the locking pin (21) into the space. A circular arc segment of constant radius used for rotational transition (112); An eccentric section (113) with a gradually changing radius is used to wedge the locking pin (21). When the locking pin (21) moves in the eccentric section (113) of the corresponding locking groove (11), the locking pin (21) is wedgeed by the side wall of the eccentric section (113), thereby fixing the box (10) in the locked position by friction.
3. The junction box connector according to claim 2, characterized in that, The end of the eccentric section (113) is provided with a limiting point (1131) for limiting the locking pin (21) when the locking pin (21) reaches the end of the locking groove (11).
4. The junction box connector according to claim 1, characterized in that, The locking pin (21) is a cylindrical pin.
5. The junction box connector according to claim 1, characterized in that, A sealing gasket (12) is also provided at the bottom of the box body (10), and each locking groove (11) is located within the range of the sealing gasket (12).
6. The junction box connector according to claim 1, characterized in that, The number of locking pins (21) and locking grooves (11) are both three, and the locking pins (21) and locking grooves (11) are arranged in a ring array around the rotation center of the mounting base (20) and the box (10).
7. The junction box connector according to claim 1, characterized in that, Both the box body (10) and the mounting base (20) are made of engineering plastic or metal materials.
8. The junction box connector according to claim 1, characterized in that, The mounting base (20) is also provided with mounting holes (22) for fixing the mounting base (20) to a mounting surface.
