Waterproof, oil-proof and explosion-proof electric connector
The waterproof, oil-proof, and explosion-proof electrical connector, designed with limiting components and threaded sleeves, solves the problem of complex disassembly and assembly, achieving rapid disassembly and stable sealing, and is suitable for high-risk environments such as petroleum, chemical, and marine industries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU TAIYI ENERGY TECH DEV CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-16
AI Technical Summary
Existing waterproof, oil-proof, and explosion-proof electrical connectors require specialized tools or additional manpower to drive the drive gear during disassembly and assembly, making maintenance complex and time-consuming, and potentially leading to loose connections or equipment damage.
The device employs a limit component and threaded sleeve design. The moving limit component controls the engagement component to connect the female and male connectors, enabling quick disassembly. The threaded connection secures the limit component, ensuring sealing and stability.
It improves operational efficiency, reduces time costs, enhances sealing performance and stability, and is suitable for long-term operation in harsh environments, especially for high-risk industries such as petroleum, chemical and marine industries.
Smart Images

Figure CN224367234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, and in particular to a waterproof, oil-proof, and explosion-proof electrical connector. Background Technology
[0002] Waterproof, oil-proof, and explosion-proof electrical connectors play a crucial role in modern industry and electronic equipment, especially in harsh environments such as petrochemical, mining, and shipbuilding. They not only ensure the stability of electrical systems but also withstand extreme conditions such as moisture, oil, high temperatures, and chemical corrosion. With increasing demands for equipment safety and intelligence, these connectors will evolve towards higher protection levels, more advanced intelligent functions, and more environmentally friendly designs, finding widespread application in automation, remote monitoring, and other fields to improve equipment lifespan and safety.
[0003] A search revealed an existing patent (publication number: CN222673420U) disclosing a waterproof electrical connector, relating to the field of electrical connector technology. This utility model includes a connecting plate with a connecting clip on one side. Both the connecting plate and the connecting clip have connecting lines on their inner surfaces. Two connecting mechanisms are located on one side of the connecting plate, and a limiting mechanism is located on one side of both the connecting plate and the connecting clip. Each connecting mechanism includes a connecting frame, with a drive gear inside. Two driven gears are meshed with the outer surface of the drive gear. A threaded rod is fixed to one side of each of the two driven gears. A positioning ring is fixed to one side of the connecting plate. A sealing groove is formed on one side of both the connecting plate and the connecting clip. This utility model, through its connecting mechanisms, enables the waterproof electrical connector to effectively connect circuits, and through its limiting mechanisms, enables the waterproof electrical connector to effectively fix the circuits.
[0004] However, in actual use of the above solution, the device is disassembled and assembled by rotating the drive gear. However, the drive gear requires a special tool to drive it. If it is rotated directly by manpower, the connection may not be tight, making maintenance more complicated and time-consuming. If the operation is improper, it may damage the bolts or connectors, or even affect the overall performance and service life of the equipment.
[0005] Therefore, this utility model provides a waterproof, oil-proof, and explosion-proof electrical connector. Utility Model Content
[0006] The purpose of this invention is to solve the problem that in the prior art, disassembly and assembly require special tools or additional manpower to drive the drive gear, which may make maintenance work more complicated and time-consuming. Therefore, a waterproof, oil-proof and explosion-proof electrical connector is proposed.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A waterproof, oil-proof, and explosion-proof electrical connector, including a male connector, and further comprising:
[0009] The second limiting ring is fixed to the outer wall of the middle section of the male connector;
[0010] Spring, fixed to the outer wall of one side of the male connector;
[0011] The power transmission component is installed through the middle section inside the male connector.
[0012] A limiting component is located at the end of the spring away from the second limiting ring;
[0013] The engaging assembly is located inside the side wall of the male connector;
[0014] The female connector is slidably connected to the inner side of the male connector end;
[0015] An oil-resistant rubber sleeve is fixed inside the opening at the end of the female connector and connected to the connection end of the power transmission component.
[0016] The connecting component is located on the outer side of the female connector near the male connector;
[0017] The reinforcement component is located on the outside of the female connector.
[0018] As a preferred technical solution of this application, the power transmission assembly includes a safety module fixed inside the middle section of the male connector, a power-conducting rod fixedly connected to the inside of the safety module, the power-conducting rod passing through the safety module, and the connecting end of the power-conducting rod being sleeved inside an oil-resistant rubber sleeve.
[0019] As a preferred technical solution of this application, the limiting component includes a sliding sleeve fixed to the outer end of the spring, the inner wall of the sliding sleeve is provided with a range-extending groove, and the middle section of the sliding sleeve away from the range-extending groove is provided with a groove that is slidably connected to the second limiting ring.
[0020] As a preferred technical solution of this application, the engaging assembly includes through holes evenly distributed on the side wall of the male connector, a slider fixed to the inner wall of the male connector corresponding to the through holes, a limiting ball slidably connected to the inner side of the through holes, and the slider engaging with the limiting ball.
[0021] As a preferred technical solution of this application, the connecting component includes multiple sliding grooves on the outer side of the female connector end corresponding to the slider, and a retaining groove on the outer wall of the female connector near the male connector side corresponding to the position of the limiting ball. The sliding grooves are slidably connected to the slider, and the retaining grooves are engaged with the limiting ball.
[0022] As a preferred technical solution of this application, the reinforcement component includes a retaining ring fixed to the middle section of the outer wall of the female connector, a first limiting ring fixed to the outer wall of the female connector on the side away from the male connector, and a threaded sleeve slidably connected to the outer wall of the female connector, wherein the inner end of the threaded sleeve is threadedly connected to the outer wall of the male connector on the side close to it.
[0023] Compared with the prior art, this utility model provides a waterproof, oil-proof, and explosion-proof electrical connector, which has the following advantages:
[0024] 1. The present invention provides a waterproof, oil-proof, and explosion-proof electrical connector. By controlling the engaging component through a movable limiting component, the connection between the connecting component and the engaging component is controlled, thereby enabling quick disassembly of the female and male connectors. This feature greatly improves operational efficiency and reduces time costs in scenarios requiring frequent connection and disconnection of electrical equipment. Furthermore, it eliminates the need for external equipment assistance, significantly expanding its application scenarios.
[0025] 2. The waterproof, oil-proof, and explosion-proof electrical connector of this utility model uses a threaded connection between a threaded sleeve and a male connector. This seals both the female and male connectors while simultaneously fixing the limiting component, preventing it from moving. This effectively seals the female and male connectors, preventing moisture, oil, or contaminants from entering the connector, and also secures the limiting component to prevent displacement during use. This design enhances sealing performance, ensuring the connector maintains its waterproof and oil-proof function in humid or oily environments. Simultaneously, by fixing the limiting component, the stability and reliability of the connector are improved, avoiding malfunctions caused by component movement. The threaded connection also enhances the explosion-proof function, ensuring safe use in explosive gas environments. Overall, this design improves the connector's durability, stability, and operating efficiency, making it particularly suitable for high-risk industries such as petroleum, chemical, and marine industries, ensuring safe and long-term operation in harsh environments. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0027] Figure 2 This is a schematic cross-sectional view of the threaded sleeve in this utility model;
[0028] Figure 3 This is a cross-sectional structural diagram of the sliding sleeve in this utility model;
[0029] Figure 4 This is a schematic cross-sectional view of the male connector in this utility model. Figure 1 ;
[0030] Figure 5 yes Figure 4Enlarged view of a portion of point A in the middle;
[0031] Figure 6 This is a schematic cross-sectional view of the male connector in this utility model. Figure 2 ;
[0032] Figure 7 yes Figure 6 Enlarged view of section B in the middle
[0033] Figure 8 This is a partial three-dimensional structural diagram of the oil-resistant rubber sleeve in this utility model.
[0034] In the picture:
[0035] 1. Female connector; 11. Oil-resistant rubber sleeve; 12. Slide groove; 13. Slot; 14. Threaded sleeve; 15. Retaining ring; 16. First limiting ring; 2. Male connector; 21. Safety module; 22. Power rod; 23. Second limiting ring; 24. Spring; 25. Through hole; 26. Limiting ball; 27. Slider; 3. Sliding sleeve; 31. Range extender groove. Detailed Implementation
[0036] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example
[0037] Reference Figure 1-8 A waterproof, oil-proof, and explosion-proof electrical connector, including a male connector 2, and further comprising:
[0038] The second limiting ring 23 is fixed to the outer wall of the middle section of the male connector 2, and the second limiting ring 23 is supported and fixed by the male connector 2;
[0039] Spring 24 is fixed to the outer wall of one side of male connector 2, and spring 24 is supported and fixed by male connector 2;
[0040] The power transmission component is installed through the middle section of the inner side of the male connector 2, and is fixed by the male connector 2.
[0041] The limiting component is located at the end of the spring 24 away from the second limiting ring 23, and is supported by the male connector 2;
[0042] The engaging component is located inside the side wall of the male connector 2, and the male connector 2 limits the engagement component.
[0043] The female connector 1 is slidably connected to the inner side of the end of the male connector 2, and the male connector 2 limits the female connector 1.
[0044] The oil-resistant rubber sleeve 11 is fixed inside the end opening of the female connector 1 and connected to the power transmission component connection section. The oil-resistant rubber sleeve 11 is supported and fixed by the female connector 1. The power-conducting end inside the female connector 1 is located inside the oil-resistant rubber sleeve 11 to prevent workers from accidentally touching it and causing electric shock accidents.
[0045] A connecting component is located on the outside of the female connector 1 near the male connector 2. The connecting component, the engaging component, and the limiting component cooperate with each other to achieve the connection between the female connector 1 and the male connector 2.
[0046] The reinforcement component is located on the outside of the female connector 1, and the female connector 1 supports and limits the reinforcement component.
[0047] The power transmission assembly includes a fuse module 21 fixed inside the middle section of the male connector 2. The fuse module 21 is supported and fixed by the male connector 2. The fuse module 21 can protect the line after the male connector 2 is energized, preventing short circuits and other situations. A power-conducting rod 22 is fixedly connected to the inside of the fuse module 21. The power-conducting rod 22 is supported and fixed by the fuse module 21. The power-conducting rod 22 passes through the fuse module 21. The connecting end of the power-conducting rod 22 is sleeved inside the oil-resistant rubber sleeve 11. By inserting the power-conducting rod 22 into the oil-resistant rubber sleeve 11 and contacting the energized end inside the oil-resistant rubber sleeve 11, power is supplied to the power-conducting rod 22.
[0048] The limiting component includes a sliding sleeve 3 fixed to the outer end of the spring 24. The sliding sleeve 3 is fixed by the spring 24. An extension groove 31 is provided on the inner wall of the sliding sleeve 3. A groove that is slidably connected to the second limiting ring 23 is provided in the middle section of the side of the sliding sleeve 3 away from the extension groove 31. The movement range of the sliding sleeve 3 is limited by the second limiting ring 23.
[0049] The engaging assembly includes through holes 25 evenly distributed on the side wall of the male connector 2, and a slider 27 fixed to the inner wall of the male connector 2 corresponding to the through holes 25. The slider 27 is supported and fixed by the male connector 2. A limiting ball 26 is slidably connected to the inside of the through hole 25. The slider 27 and the limiting ball 26 are engaged and connected. At the same time, the slider 27 limits the limiting ball 26 to prevent the limiting ball 26 from falling out of the through hole 25.
[0050] The connecting assembly includes multiple sliding grooves 12 on the outer side of the end of the female connector 1 corresponding to the slider 27, and a retaining groove 13 on the outer wall of the female connector 1 near the male connector 2, corresponding to the position of the limiting ball 26. The sliding grooves 12 are slidably connected to the slider 27, and the slider 27 limits the sliding grooves 12, thereby fixing the angle of the female connector 1 and the male connector 2 and preventing rotation during use. The retaining groove 13 is engaged with the limiting ball 26, and the female connector 1 and the male connector 2 are connected and fixed by the mutual engagement of the limiting ball 26 and the retaining groove 13.
[0051] The reinforcing assembly includes a retaining ring 15 fixed to the middle section of the outer wall of the female connector 1 and a first limiting ring 16 fixed to the outer wall of the female connector 1 on the side away from the male connector 2. The retaining ring 15 and the first limiting ring 16 are fixed and slidably connected to the outer wall of the female connector 1. The threaded sleeve 14 is limited by the female connector 1, and the movement stroke of the threaded sleeve 14 is limited by the retaining ring 15 and the first limiting ring 16. The inner end of the threaded sleeve 14 is threadedly connected to the outer wall of the male connector 2 on the side close to it. The threaded connection between the threaded sleeve 14 and the male connector 2 further fixes and seals the female connector 1 and the male connector 2.
[0052] Specifically, this waterproof, oil-proof, and explosion-proof electrical connector is used as follows:
[0053] First, push the sliding sleeve 3 away from the safety module 21 so that the range extender groove 31 is aligned with the limit ball 26, allowing the limit ball 26 to move into the range extender groove 31.
[0054] After aligning the groove 12 on the female connector 1 with the slider 27 on the male connector 2, insert it into the male connector 2. During this process, the energizing rod 22 is inserted into the oil-resistant rubber sleeve 11 to conduct electricity.
[0055] Then, release the sliding sleeve 3, and push the sliding sleeve 3 away from the female connector 1 by the spring 24 with the through hole 25 as the stress point. The sliding sleeve 3 will also squeeze the limiting ball 26, forcing the limiting ball 26 to move inward and engage with the slot 13, thus completing the connection between the female connector 1 and the male connector 2.
[0056] Push the threaded sleeve 14 toward the male connector 2 and rotate the threaded sleeve 14 to make the threaded sleeve 14 and the male connector 2 threadedly connected, thus completing the installation.
[0057] 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. A waterproof, oil-proof, explosion-proof electrical connector comprising a male connector (2), characterized in that, Also include: Second limit ring (23), fixed in the middle of the male connector (2) outer wall; Spring (24), fixed to one side of the male connector (2) outer wall; Power transmission assembly, through the setting in the male connector (2) inside the middle, Limiting assembly, set up in the spring (24) away from the second limiting ring (23) one side end; Clamping assembly, set up in the male connector (2) side wall inside; Female connector (1), sliding connection in the male connector (2) end inside; Oil resistant rubber sleeve (11), fixed to the female connector (1) end opening inside, with the power transmission assembly connection end connected; Connecting assembly, set up in the female connector (1) near the male connector (2) one side outside; Reinforcing assembly, set up in the female connector (1) outside.
2. A waterproof, oil-proof and explosion-proof electric connector according to claim 1, characterized in that, The power transmission assembly includes an insurance module (21) fixed to the inside of the male connector (2), the inside of the insurance module (21) is fixedly connected with an energizing rod (22), the energizing rod (22) penetrates the insurance module (21), and the connecting end of the energizing rod (22) is sleeved in the oil resistant rubber sleeve (11).
3. The waterproof, oil-proof and explosion-proof electrical connector according to claim 2, wherein, The limiting assembly includes a sliding sleeve (3) fixed to the outer side of the spring (24), the inner wall of the sliding sleeve (3) is provided with a range increasing groove (31), and the middle of the side, away from the range increasing groove (31), of the sliding sleeve (3) is provided with a groove in sliding connection with the second limiting ring (23).
4. The waterproof, oil-proof and explosion-proof electrical connector according to claim 3, wherein, The clamping assembly includes through holes (25) evenly distributed on the side wall of the male connector (2), sliding blocks (27) fixed to the inner wall of the male connector (2) corresponding to the through holes (25), the inner side of the through hole (25) is in sliding connection with a limiting ball (26), and the sliding block (27) is in clamping connection with the limiting ball (26).
5. The water, oil and explosion-proof electrical connector of claim 4, wherein, The connecting assembly includes a plurality of sliding grooves (12) provided on the outer side of the end of the female connector (1) corresponding to the sliding block (27), a clamping groove (13) provided on the outer wall of the side of the female connector (1) corresponding to the position of the limiting ball (26) close to the male connector (2), the sliding groove (12) is in sliding connection with the sliding block (27), and the clamping groove (13) is in clamping connection with the limiting ball (26).
6. The water, oil and explosion-proof electrical connector of claim 1, wherein, The reinforcing assembly includes a stop ring (15) fixed to the middle of the outer wall of the female connector (1), a first limiting ring (16) fixed to the outer wall of the side, away from the male connector (2), of the female connector (1), and a threaded sleeve (14) slidingly connected to the outer wall of the female connector (1), and the inner side end of the threaded sleeve (14) is in threaded connection with the outer wall of the side close to the male connector (2).