An electrical junction box that is easy to install

By using a terminal structure with a limit block and spring, and a sealing sleeve design with a sealing block and waterproof shell, the problems of inconvenient installation and insufficient sealing of traditional electrical junction boxes are solved, achieving rapid installation and efficient sealing, and improving the stability and safety of the circuit.

CN224537739UActive Publication Date: 2026-07-21CANGZHOU DIMI INTELLIGENT TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CANGZHOU DIMI INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-08-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional electrical junction boxes are cumbersome to install and inconvenient to disassemble, have insufficient sealing performance, and are difficult to effectively protect wire joints in complex environments, posing safety hazards.

Method used

The terminal mounting structure employs a combination of a limit block and a spring, along with a sealing sleeve design for the sealing block and waterproof shell, enabling rapid installation and enhancing the sealing effect.

Benefits of technology

It improves the ease of installation and sealing of the terminal blocks, ensures waterproof protection of electrical junction boxes in humid or corrosive environments, and enhances the stability and safety of the circuit.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224537739U_ABST
    Figure CN224537739U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of electrical junction box convenient to install, it is related to electrical junction box technical field, including main body and the connecting ring of main body bottom end screw connection, bolt is fixedly connected in the front end surface of main body, and fixed block is fixedly connected in the inside of main body, and wiring terminal is inserted into on fixed block;The utility model is through the cooperation of limiting block and spring, limiting groove, it is convenient to quickly complete the installation and fixation of wiring terminal and fixed block, improves the convenience of wiring terminal installation, and then wiring terminal quick dismounting function can be realized;Again through the cooperation of sealing block and waterproof shell, sealing sleeve, when waterproof shell is screw connected in connecting ring bottom end, sealing block outside and waterproof shell inner side surface abut, sealing sleeve further enhances sealing effect, it is convenient to seal protection to electrical junction box inside, improve the waterproof sealing property of junction box, and then junction box sealing waterproof function can be realized;Finally solve the problem of electrical junction box wiring terminal installation inconvenience and poor sealing performance.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of electrical junction box technology, and in particular to an electrical junction box that is easy to install. Background Technology

[0002] In electrical installation engineering, electrical junction boxes, as key components for connecting wires and cables, are widely used in many fields such as construction, industrial equipment, and smart homes. Their main function is to protect wire joints from the influence of the external environment, while providing a safe and reliable space for wire branching and switching, ensuring the stability and safety of circuit connections. However, traditional electrical junction boxes present numerous inconveniences during actual installation and use. On the one hand, the terminal blocks, as the core components for wire connections within the junction box, are often cumbersome to install and fix, requiring multiple bolts for tightening. This not only makes installation time-consuming but also makes disassembly extremely inconvenient during subsequent maintenance or replacement, severely impacting the efficiency of electrical installation and repair. On the other hand, the sealing performance of electrical junction boxes is crucial, especially in humid, dusty, or corrosive environments. Improper sealing allows moisture, dust, or corrosive substances to easily enter the junction box, leading to oxidized wire connections, short circuits, and other malfunctions, affecting the normal operation of the circuit and even posing safety hazards. However, the sealing structure of traditional junction boxes is relatively simple, typically relying on a single sealing ring, resulting in limited sealing effectiveness and failing to meet the needs of use in complex environments. Therefore, improvements are needed to address these issues. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an easy-to-install electrical junction box.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an easy-to-install electrical junction box, comprising a main body and a connecting ring threaded to the bottom end of the main body, a pin fixedly connected to the front end face of the main body, and a fixing block fixedly connected inside the main body, a terminal block inserted into the fixing block, a limit mechanism installed at one end of the terminal block, and a sealing mechanism installed at the lower end of the connecting ring.

[0005] Preferably, a rear shell is inserted into the rear end of the main body, a sealing ring is installed on the periphery of the front end face of the rear shell, and a slot is opened at the rear end of the main body, into which the sealing ring is inserted.

[0006] Preferably, the terminal block has multiple through holes for placing wires, and each through hole has a positioning bolt threaded to its upper end.

[0007] Preferably, the sealing mechanism includes a sealing block installed at the bottom of the connecting ring and a sealing sleeve installed inside the connecting ring. The bottom end of the sealing sleeve is located inside the sealing block, and the bottom end of the connecting ring is threadedly connected to a waterproof shell. The outer side of the sealing block abuts against the inner side of the waterproof shell. The inner side of the waterproof shell and the bottom end of the connecting ring are respectively equipped with a tapered thread and a thread groove that matches the tapered thread.

[0008] Preferably, one end of the terminal block has a first mounting groove, and the fixing block has a second mounting groove inside, with one end of the terminal block slidably mounted in the second mounting groove.

[0009] Preferably, a spring is installed in the first mounting groove, a limit block is installed at the other end of the spring, and a limit groove for cooperating with the limit block is longitudinally opened in the fixing block, with the upper end of the limit block inserted into the limit groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the limiting block, spring, and limiting groove, facilitates the quick and easy installation and fixing of the terminal block and the fixing block, improving the convenience of terminal block installation and enabling rapid assembly and disassembly of the terminal block. Furthermore, through the cooperation of the sealing block, waterproof shell, and sealing sleeve, when the waterproof shell is threaded onto the bottom of the connecting ring, the outer side of the sealing block abuts against the inner side of the waterproof shell, and the sealing sleeve further enhances the sealing effect, facilitating the sealing and protection of the electrical junction box interior, improving the waterproof sealing performance of the junction box, and thus enabling the junction box to achieve a sealed and waterproof function. Ultimately, this solves the problems of inconvenient terminal block installation and poor sealing performance in electrical junction boxes. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of the device proposed in this utility model; Figure 3 This is a schematic diagram of the terminal block structure proposed in this utility model; Figure 4 This is a schematic diagram of the sealing mechanism proposed in this utility model; Figure 5 This is a schematic diagram of the rear shell structure proposed in this utility model.

[0012] The following are the components listed in the diagram: 1. Main body; 2. Rear shell; 3. Pin; 4. Waterproof shell; 5. Terminal block; 6. Limiting block; 7. Connecting ring; 8. Sealing block; 9. Sealing sleeve; 10. Positioning bolt; 11. Fixing block; 12. Spring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figure 1-5 This utility model discloses an easy-to-install electrical junction box, comprising a main body 1 and a connecting ring 7 threadedly connected to the bottom end of the main body 1. The main body 1 facilitates wiring; the connecting ring 7 facilitates waterproof sealing of the wires; a pin 3 is fixedly connected to the front end of the main body 1, facilitating the installation and fixation of the junction box; a fixing block 11 is fixedly connected inside the main body 1, facilitating the installation of terminal blocks 5; terminal blocks 5 are inserted into the fixing block 11, facilitating the connection of wires and pin 3; a limiting mechanism is installed at one end of the terminal block 5, and a sealing mechanism is installed at the lower end of the connecting ring 7; a rear shell 2 is inserted into the rear end of the main body 1. The rear shell 2 is easy to disassemble, allowing for wiring and maintenance of the internal wiring terminals 5. A sealing ring is installed on the periphery of the front face of the rear shell 2, which facilitates waterproof sealing of the wires. A slot is provided at the rear of the main body 1, into which the sealing ring is inserted. Multiple through holes for placing wires are provided on the wiring terminals 5, and a positioning bolt 10 is threaded to the upper end of each through hole to prevent the wire from becoming loose. The sealing mechanism includes a sealing block 8 installed at the bottom of the connecting ring 7 and a sealing sleeve 9 installed inside the connecting ring 7. The sealing block 8 facilitates the compression of the sealing sleeve 9, and the sealing sleeve 9 facilitates the reinforcement of its sealing performance.

[0015] In this utility model, the bottom end of the sealing sleeve 9 is located inside the sealing block 8, and the bottom end of the connecting ring 7 is threadedly connected to the waterproof shell 4. The waterproof shell 4 facilitates the sealing block 8 to be pressed inward. The outer side of the sealing block 8 abuts against the inner side of the waterproof shell 4. The inner side of the waterproof shell 4 and the bottom end of the connecting ring 7 are respectively equipped with a tapered thread and a thread groove that matches the tapered thread. One end of the terminal 5 is provided with a first mounting groove, and the inside of the fixing block 11 is provided with a second mounting groove. One end of the terminal 5 is slidably installed in the second mounting groove. A spring 12 is installed in the first mounting groove. The spring 12 facilitates the pushing of the limiting block 6 into the limiting groove. The other end of the spring 12 is equipped with the limiting block 6. The limiting block 6 facilitates the locking into the limiting groove to prevent the terminal 5 from shaking. The fixing block 11 is provided with a longitudinally penetrating limiting groove that matches the limiting block 6. The upper end of the limiting block 6 is inserted into the limiting groove.

[0016] Working Principle: When using this utility model, firstly, the wire to be connected is passed through the through hole on the terminal block 5. Then, the positioning bolt 10 at the top of each through hole is tightened. Through the threaded engagement of the positioning bolt 10 with the through hole, one end of the wire is firmly fixed in the terminal block 5, preventing the wire from loosening during subsequent operations. Next, the terminal block 5 with the wire fixed is aligned with the second mounting groove on the fixing block 11 fixed inside the main body 1 and inserted. During the insertion process, the spring 12 in the first mounting groove at one end of the terminal block 5 is compressed, generating elastic thrust, which pushes the limiting block 6 installed at the other end of the spring 12 to move upward. When the terminal block 5 is fully inserted into the second mounting groove, the upper end of the limiting block 6 is precisely inserted into the longitudinally penetrating limiting groove in the fixing block 11, thereby firmly installing the terminal block 5 on the fixing block 11, preventing the terminal block 5 from shaking inside the main body 1. At the same time, the connection between the wire and the plug 3 is achieved through the terminal block 5. After that, the connection is completed. After installation of part 5, align the sealing ring installed on the periphery of the front end of the rear shell 2 with the slot opened at the rear end of the main body 1, and then insert the rear shell 2 into the rear end of the main body 1. Through the cooperation of the sealing ring and the slot, a sealed connection is achieved between the main body 1 and the rear shell 2. At the same time, the setting of the rear shell 2 also facilitates subsequent wiring and maintenance of the internal wiring terminal 5. Finally, connect the waterproof shell 4 to the threaded groove at the bottom end of the connecting ring 7 through the tapered thread on its inner side. During the tightening of the waterproof shell 4, the outer side of the sealing block 8 installed at the bottom end of the connecting ring 7 gradually abuts against the inner side of the waterproof shell 4. As the waterproof shell 4 is tightened, the sealing block 8 is squeezed inward, thereby squeezing the sealing sleeve 9 located on its inner side, so that the sealing sleeve 9 is tightly attached to the wire passing through. At the same time, the sealing sleeve 9 inside the connecting ring 7 further enhances the sealing effect. Through the threaded connection between the connecting ring 7 and the bottom end of the main body 1 and the above-mentioned sealing mechanism, the wire is waterproofed and sealed. This completes the installation and sealing operation of the entire electrical junction box.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An easy-to-install electrical junction box, comprising a main body (1) and a connecting ring (7) threadedly connected to the bottom end of the main body (1), characterized in that: The front end face of the main body (1) is fixed with a pin (3), and a fixing block (11) is fixed inside the main body (1). A terminal block (5) is inserted into the fixing block (11). A limiting mechanism is installed at one end of the terminal block (5), and a sealing mechanism is installed at the lower end of the connecting ring (7).

2. The easily installable electrical junction box according to claim 1, characterized in that: The rear end of the main body (1) is connected to a rear shell (2), a sealing ring is installed on the periphery of the front end face of the rear shell (2), and a slot is opened at the rear end of the main body (1), and the sealing ring is inserted into the slot.

3. The easily installable electrical junction box according to claim 1, characterized in that: The terminal block (5) has multiple through holes for placing wires, and each through hole is threaded with a positioning bolt (10) at its upper end.

4. The easily installable electrical junction box according to claim 1, characterized in that: The sealing mechanism includes a sealing block (8) installed at the bottom of the connecting ring (7) and a sealing sleeve (9) installed inside the connecting ring (7). The bottom of the sealing sleeve (9) is located inside the sealing block (8), and the bottom of the connecting ring (7) is threadedly connected to a waterproof shell (4). The outer side of the sealing block (8) abuts against the inner side of the waterproof shell (4). The inner side of the waterproof shell (4) and the bottom of the connecting ring (7) are respectively equipped with a tapered thread and a thread groove that matches the tapered thread.

5. An easily installable electrical junction box according to claim 1, characterized in that: The terminal block (5) has a first mounting groove at one end, and the fixing block (11) has a second mounting groove inside. The terminal block (5) is slidably installed in the second mounting groove at one end.

6. An easily installable electrical junction box according to claim 5, characterized in that: A spring (12) is installed in the first mounting slot. A limit block (6) is installed at the other end of the spring (12). A limit groove for cooperating with the limit block (6) is longitudinally opened in the fixing block (11). The upper end of the limit block (6) is inserted into the limit groove.