Electrical junction box convenient to maintain
By introducing a combination design of adjustment rods, chute tubes and other sealing components such as expansion air bags into the electrical junction box, the problem of long assembly and maintenance time of the electrical junction box is solved, rapid maintenance and efficient sealing are achieved, and construction efficiency and equipment life are improved.
Patent Information
- Application Number
- CN202422341961.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing electrical junction boxes require a lot of time to prepare for assembly and maintenance, which affects construction efficiency.
The combination design of adjustment rod, slide tube, bidirectional screw, mobile plate, connecting plate, clamp block and clamp slot is adopted, and the sealing components of the expansion air bag, connecting tube, piston rod, spring and unidirectional tube are combined to achieve rapid opening and reset and improve sealing.
It realizes electricians to quickly identify problems and repair them, reduce the probability of accidents, improve construction efficiency and sealing performance, prevent dust and pollutants from entering, and extend the service life of the equipment.
Smart Images

Figure CN223218783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical junction boxes, in particular to an electrical junction box which is easy to maintain. Background Art
[0002] An electrical junction box is a device used to protect and organize wires and cables. It is widely used in building electrical systems. The main function of a junction box is to connect and distribute wires to ensure the normal operation and safety of electrical equipment. It is usually made of metal or plastic materials and has certain fireproof, waterproof and dustproof properties. It can also be assembled to facilitate wiring or maintenance of the device.
[0003] After searching, the Chinese patent with announcement number CN220139183U discloses an electrical junction box, including a box body and a box cover, wherein the box body is provided with a terminal, the top of the box body is provided with a protruding frame, the bottom of the box cover is provided with a sealing ring that matches the protruding frame, the four corners of the top of the box body are provided with threaded holes, the four corners of the box cover are inserted with bolts, and the bolts are connected with the threaded holes; both ends of the box body are provided with interface threaded tubes, the interface threaded tubes are matched with nuts, an interface is provided inside one end of the nut, a sealing diaphragm is provided inside the interface, and a cross cut is provided in the middle of the sealing diaphragm; the utility model has a good waterproof effect through the arrangement of the above structure, which prevents water from entering the junction box and causing moisture in the junction box, and avoids short circuit and damage to the junction box.
[0004] Based on the above search and combined with existing technology findings;
[0005] In the above-mentioned search patent, when assembling the box body and the box cover, workers are required to prepare screws to assemble the two, which requires workers to spend extra time preparing corresponding tools during assembly. As a result, workers need to spend a lot of time on preparatory work during assembly or maintenance, thereby affecting the maintenance or assembly efficiency of the device. Therefore, there are certain limitations. Utility Model Content
[0006] In order to solve the above technical problems, the utility model provides an electrical junction box that is easy to maintain, which saves time spent on assembly and maintenance and improves construction efficiency.
[0007] The technical solution for achieving the purpose of the utility model is: an electrical junction box that is easy to maintain, including a box body, a terminal post is fixedly installed inside the box body, a wiring tube is installed through the left and right ends of the box body, a box cover is provided on the top of the box body, and adjustment rods are rotatably installed on the opposite ends of the box cover, a slide tube is opened inside the box body, and the slide tube is adapted to the adjustment rod, an expansion airbag is fixedly installed between the box body and the box cover, and the front end of the expansion airbag is fixedly connected to a connecting pipe, and further includes a connecting assembly and a sealing assembly;
[0008] A connecting assembly comprising a bidirectional screw fixedly mounted on the bottom end of the adjusting rod;
[0009] A sealing assembly includes a fixed pipe fixedly connected to the inner wall of the connecting pipe.
[0010] Preferably, both ends of the bidirectional screw are threadedly connected to movable plates, a pair of outer walls of the movable plates are rotatably connected to connecting plates, and the movable plates are slidably connected to the inner wall of the chute tube.
[0011] Preferably, a clamping block is rotatably mounted on each of two adjacent connecting plates via a movable shaft, and clamping grooves are provided around the inner wall of the chute tube, and the clamping block is adapted to the clamping grooves.
[0012] Preferably, a first spring is provided at the front end of the connecting tube, a piston rod is fixedly mounted on one end of the first spring, a second spring is provided at the top end of the fixed tube, and a one-way tube is fixedly mounted on one end of the second spring.
[0013] Preferably, one end of each wiring tube is threadedly connected to a threaded cap, and a moisture-proof plate is fixedly installed on the inner wall of the box body.
[0014] Compared with the prior art, the present invention has the following significant advantages:
[0015] First, the utility model utilizes a combination of an adjustment rod, a chute tube, a bidirectional screw, a movable plate, a connecting plate, a clamping block, and a clamping slot to create a junction box that is easy to open and reset. This allows electricians to quickly and conveniently access internal connections during repairs or inspections, helping them quickly identify and repair problems. Furthermore, the convenience of regular maintenance ensures the health of junction points and cables, reducing the likelihood of accidents.
[0016] Second: The utility model improves the sealing performance of the connection between the box cover and the box body by using the expansion airbag, connecting tube, piston rod, first spring, fixing tube, second spring and one-way tube in combination. The good sealing performance can prevent dust, sand and other pollutants from entering the junction box, thereby avoiding equipment overheating or poor electrical connection caused by dust accumulation, thereby extending the service life of the junction box and internal electrical components.
[0017] The present invention solves the problem that workers need to spend a lot of time on preparatory work when assembling or maintaining the device, thereby affecting the maintenance or assembly efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by the utility model;
[0020] Figure 2 This is a schematic diagram of the half-section structure of the cover provided by the utility model;
[0021] Figure 3 This is a schematic diagram of the half-section structure of the box cover provided by the utility model;
[0022] Figure 4 This is a schematic diagram of the half-section structure of the connecting pipe provided by the utility model;
[0023] Figure 5 This is a schematic diagram of a half-section structure of a fixed pipe provided by the utility model.
[0024] Description of reference numerals:
[0025] 1. Box body; 2. Terminal; 3. Wiring tube; 4. Threaded cap; 5. Moisture-proof board; 6. Box cover; 7. Adjusting rod; 8. Slide tube; 9. Inflatable airbag; 10. Connecting tube; 11. Bidirectional screw; 12. Moving plate; 13. Connecting plate; 14. Block; 15. Slot; 16. Piston rod; 17. First spring; 18. Fixed tube; 19. Second spring; 20. One-way tube. DETAILED DESCRIPTION
[0026] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] The utility model provides an electrical junction box that is easy to maintain through improvement. The technical solution of the utility model is:
[0028] like Figure 1-5 As shown, an electrical junction box that is easy to maintain includes a box body 1, with a terminal 2 fixedly installed inside the box body 1, a wiring tube 3 penetrating the left and right ends of the box body 1, a box cover 6 provided on the top of the box body 1, and adjustment rods 7 rotatably installed on opposite ends of the box cover 6, a slide tube 8 is opened inside the box body 1, and the slide tube 8 is adapted to the adjustment rod 7, an expansion airbag 9 is fixedly installed between the box body 1 and the box cover 6, and a connecting pipe 10 is fixedly connected to the front end of the expansion airbag 9, which helps electricians quickly identify problems and repair them. The convenience of regular maintenance can ensure the health of wiring points and cables and reduce the probability of accidents. The box box also includes a connection component and a sealing component;
[0029] The connecting assembly includes a bidirectional screw 11 fixedly mounted at the bottom end of the adjusting rod 7, which facilitates assembly operation and improves the flexibility of the device;
[0030] The sealing assembly includes a fixed tube 18 fixedly connected to the inner wall of the connecting tube 10. The sealing assembly effectively prevents equipment overheating or poor electrical connection caused by dust accumulation.
[0031] Furthermore, both ends of the bidirectional screw 11 are threadedly connected to a movable plate 12, and a pair of connecting plates 13 are rotatably connected to the outer walls of the movable plates 12. The movable plates 12 are slidably connected to the inner wall of the chute tube 8, which is convenient for timely maintenance and ensures safety.
[0032] Furthermore, a clamping block 14 is installed on each of the two adjacent connecting plates 13 through a movable shaft, and a clamping groove 15 is provided around the inner wall of the slide tube 8. The clamping block 14 is adapted to the clamping groove 15. Reverse rotation of the adjusting rod 7 can cause the clamping block 14 to fall off from the clamping groove 15, thereby facilitating maintenance and repair of the wires in the box body 1.
[0033] Furthermore, a first spring 17 is provided at the front end of the connecting tube 10, a piston rod 16 is fixedly installed at one end of the first spring 17, a second spring 19 is provided at the top end of the fixed tube 18, and a one-way tube 20 is fixedly installed at one end of the second spring 19, thereby maintaining the expansion effect of the inflatable airbag 9 and maintaining the sealing effect.
[0034] Furthermore, one end of each wiring tube 3 is threadedly connected to a threaded cap 4 , and a moisture-proof plate 5 is fixedly installed on the inner wall of the box body 1 so that the moisture-proof plate 5 can absorb the moisture contained in the box body 1 .
[0035] The specific working method is: open the threaded cap 4 and connect the wires along the wiring tube 3 to the terminal 2, so that the terminal 2 can be installed and connected to the cable, so that the wires of each part can exchange electrical signals, and the moisture-proof plate 5 contains moisture-absorbing material, so that the moisture-proof plate 5 can absorb the moist water vapor contained in the box body 1, and after the box cover 6 is connected to the box body 1, rotate the adjusting rod 7 to drive the bidirectional screw 11 to rotate, and let the bidirectional screw 11 drive the moving plate 12 to make the connecting plate 13 relatively shrink, so that the connecting plate 13 allows the card block 14 to open outward, and let the card block 14 be stuck in the card slot 15, so that the card block 14 passes through the card slot 15 to allow the box body 1 and the box cover 6 to be assembled, and the reverse rotation of the adjusting rod 7 can make the card block 14 fall off from the card slot 15, thereby facilitating the maintenance and repair of the wires in the box body 1, and easy to open and reset. The junction box design enables electricians to quickly and conveniently access internal connections when performing repairs or inspections, helping them to quickly identify and repair problems. The convenience of regular maintenance can ensure the health of wiring points and cables, reducing the probability of accidents. After the box body 1 and the box cover 6 are assembled, pressing the piston rod 16 allows external air to be infused from the connecting tube 10 to the fixed tube 18. When the air pressure in the connecting tube 10 increases, the one-way tube 20 squeezes the second spring 19 to contract, causing air to be infused from the one-way tube 20 into the expansion bag 9. After the gas in the expansion bag 9 expands, it blocks the gap created by the connection between the box body 1 and the box cover 6. After the air filling stops, the second spring 19 restores its elastic force to reset the one-way tube 20 to the fixed tube 18, thereby maintaining the expansion effect of the expansion bag 9 and maintaining the sealing effect.
[0036] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.
Claims
1. An electrical junction box that is easy to maintain, comprising a box body (1), characterized in that: The box body (1) is fixedly provided with a terminal post (2), and both left and right ends of the box body (1) are penetrated by a terminal pipe (3). The top of the box body (1) is provided with a box cover (6), and the two opposite ends of the box cover (6) are rotatably provided with an adjustment rod (7). The box body (1) is provided with a chute tube (8), and the chute tube (8) is adapted to the adjustment rod (7). An expansion air bag (9) is fixedly provided between the box body (1) and the box cover (6), and the front end of the expansion air bag (9) is fixedly connected to a connecting pipe (10), and further comprises: A connecting assembly, comprising a bidirectional screw (11) fixedly mounted on the bottom end of the adjusting rod (7); A sealing assembly comprises a fixed pipe (18) fixedly connected to the inner wall of a connecting pipe (10).
2. The electrical junction box according to claim 1, wherein: Both ends of the bidirectional screw (11) are threadedly connected to a movable plate (12), and a pair of outer walls of the movable plates (12) are rotatably connected to connecting plates (13) around them. The movable plates (12) are slidably connected to the inner wall of the chute tube (8).
3. The electrical junction box according to claim 2, wherein: A clamping block (14) is rotatably mounted on each of two adjacent connecting plates (13) via a movable shaft. Clamping grooves (15) are provided around the inner wall of the chute tube (8), and the clamping block (14) is adapted to the clamping grooves (15).
4. The electrical junction box for easy maintenance according to claim 1, characterized in that: A first spring (17) is provided at the front end of the connecting tube (10), a piston rod (16) is fixedly mounted on one end of the first spring (17), a second spring (19) is provided at the top end of the fixed tube (18), and a one-way tube (20) is fixedly mounted on one end of the second spring (19).
5. The electrical junction box easy to maintain according to claim 1, characterized in that: One end of each wiring tube (3) is threadedly connected to a threaded cap (4), and a moisture-proof plate (5) is fixedly installed on the inner wall of the box body (1).
Citation Information
Patent Citations
Electrical junction box
CN220139183U