Waterproof connector convenient to assemble

Abstract

The invention discloses a waterproof connector convenient to assemble. The waterproof connector comprises a male plug arranged on one side and a female plug arranged on the other side. One end of the male plug is inserted into the female plug and is sealed through a silica gel ring; the male plug comprises a first shell, and a first silicon rubber case is arranged in the first shell; the outer side of the first silicon rubber case is clamped and sealed with the first shell; the female plug comprises a second shell, and a second silicon rubber case is arranged in the second shell; the outer side of the second silicon rubber case is clamped and sealed with the second shell; the first silicon rubber case and the second silicon rubber case are both internally provided with inclined containing holes, cables are arranged in the containing holes, the containing holes are in interference fit with the cables, and the cables and the containing holes are sealed. According to the waterproof connector convenient to assemble, the internal structure of the connector is optimized, and rapid assembly, rapid connection and waterproof sealing are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of waterproof connectors, and particularly relates to a waterproof connector that is convenient for assembly. Background Art

[0002] The connector includes a socket (female head) and a plug (male head). The socket and the plug are arranged outside or inside an electronic device. The plug is inserted into the socket to complete the connection of signals or power.

[0003] A waterproof connector is a device used to connect wires and cables and can be applied to water-containing environments. It can effectively prevent moisture and humidity from entering the inside of the connector, thereby ensuring the safe connection of signals or power. Waterproof connectors are widely used in outdoor lighting, power equipment, communication equipment, automotive electronics, and humanoid robots and other fields.

[0004] Most of the existing waterproof connectors focus on the sealing between the plug and the socket. Generally, a single sealing ring is used to seal the gap between the plug and the socket. However, not only the above space needs to be sealed, but also elastic sealing parts need to be designed at both ends of the connector to seal the cable and the connector housing, so as to achieve comprehensive sealing. When in use, it can effectively have the function of waterproofing and extend the service life of the connector. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provide a waterproof connector that is convenient for assembly, optimize the internal structure of the connector, and achieve rapid assembly, rapid connection, and waterproof sealing.

[0006] To achieve the above purpose, the present invention provides a waterproof connector that is convenient for assembly, including a male plug installed on one side and a female plug installed on the other side; one end of the male plug is inserted into the female plug and sealed by a silica gel ring; the male plug includes a first housing, and a first silica gel sleeve is installed inside the first housing; the outer side of the first silica gel sleeve is clamped and sealed with the first housing; the female plug includes a second housing, and a second silica gel sleeve is installed inside the second housing; the outer side of the second silica gel sleeve is clamped and sealed with the second housing; both the first silica gel sleeve and the second silica gel sleeve are provided with tapered receiving holes inside, and a cable is installed inside the receiving hole and is in interference fit with the cable to seal between the cable and the receiving hole.

[0007] Preferably, one end of the first housing is provided with a waterproof groove, and a silica gel ring is sleeved inside the waterproof groove. The silica gel ring is annular and has a double-peak structure.

[0008] Preferably, a plurality of male terminals are installed inside the male plug, cables are connected to the rear ends of the male terminals, a plurality of female terminals are installed inside the female plug, cables are connected to the rear ends of the female terminals, and one end of the male terminal is inserted into the female plug.

[0009] Preferably, a locking structure is further included. The locking structure is used to lock the male plug and the female plug after they are hermetically connected to limit the separation of the male plug and the female plug. The locking structure includes a pressing and fastening part installed on the second housing and a fastening protrusion installed on the first housing. The pressing and fastening part and the second housing are connected through a connecting part. The pressing and fastening part rotates around the connecting part. The pressing and fastening part includes a pressing part installed on one side of the connecting part and a fastening part installed on the other side of the connecting part. The fastening part is inserted into one side of the fastening protrusion to achieve the fixed connection of the male plug and the female plug. A material-reducing hole is provided in the middle of the connecting part, and material-reducing U-shaped grooves are provided on both sides.

[0010] Preferably, an insertion housing is installed at one end of the first housing, and the first housing and the insertion housing are clamped with each other. A first groove is provided inside the first housing. A first clamping protrusion is provided at the lower part of the insertion housing. The first clamping protrusion is clamped into the first groove. A plurality of partitions are provided at one end of the insertion housing away from the first clamping protrusion to isolate the male terminals.

[0011] Preferably, the male terminal includes a first cylindrical part, a second cylindrical part and a third cylindrical part. A first docking plane is provided on the second cylindrical part. A second docking plane corresponding to the first docking plane is provided inside the insertion housing. A first limiting annular surface for limiting the front end of the second cylindrical part is further provided in front of the second docking plane. A plurality of elastic buckling positions are provided inside the first housing to limit the rear end of the second cylindrical part and fix the male terminal inside the insertion housing. A first insertion groove is provided inside the third cylindrical part, a cable is inserted into the first insertion groove, and the third cylindrical part is riveted to the cable.

[0012] Preferably, the female terminal includes an inserted part, a mounting part and a fourth cylindrical part. A second insertion groove is provided inside the fourth cylindrical part, a cable is inserted into the second insertion groove, and the fourth cylindrical part is riveted to the cable. A plurality of inwardly bent receiving elastic pieces are provided on the inserted part. The first cylindrical part is inserted into the receiving elastic pieces, and the receiving elastic pieces are in close contact with the first cylindrical part through elastic force.

[0013] Preferably, a positioning elastic piece is installed inside the second housing. The positioning elastic piece is clamped inside the second housing to fix the female terminal. The second housing is provided with a limiting sliding groove which accommodates one end of the positioning elastic piece. The positioning elastic piece slides along the limiting sliding groove. A first clamping protrusion is arranged on one side of the positioning elastic piece, and a second clamping protrusion is arranged on the other side. A second groove is arranged inside the limiting sliding groove, and the first clamping protrusion is clamped into the second groove. A third docking plane is arranged on the installation part. A fourth docking plane corresponding to the third docking plane is arranged inside the second housing. A second limiting ring surface for limiting the front end of the installation part is further arranged at the front of the fourth docking plane. The second clamping protrusion is used to limit the rear end of the installation part to fix the female terminal inside the second housing.

[0014] Preferably, a plurality of third clamping protrusions are arranged on the outside of the first silica gel sleeve, and a plurality of fourth grooves are arranged inside the first housing. The third clamping protrusions are clamped into the fourth grooves. A positioning protrusion is further arranged on the outside of the first silica gel sleeve, and a positioning groove corresponding to the positioning protrusion is arranged inside the first housing. The positioning protrusion is inserted into the positioning groove.

[0015] Preferably, a plurality of fourth clamping protrusions are arranged on the outside of the second silica gel sleeve, and a plurality of third grooves are arranged inside the second housing. The fourth clamping protrusions are clamped into the third grooves. An avoidance groove for avoiding the limiting sliding groove is further arranged on the second silica gel sleeve.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] In order to achieve waterproof sealing, the present invention seals between the male plug and the female plug through a silica gel ring. At the end of the male plug, the first silica gel sleeve is used to seal between the first silica gel sleeve and the first housing. At the end of the female plug, the second silica gel sleeve is used to seal between the second silica gel sleeve and the second housing. Further, in order to seal the cable, inclined accommodation holes are arranged inside both the first silica gel sleeve and the second silica gel sleeve. The cable is installed inside the accommodation holes and is in interference fit with the cable to seal between the cable and the accommodation holes, thereby achieving all-round waterproofing of the connector. Furthermore, inside, both the male plug and the female plug are connected and fixed in a snap-fit manner. Outside, the male plug and the female plug are connected and locked by a locking structure, thereby achieving rapid assembly and rapid connection. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a waterproof connector provided by the present invention that is easy to assemble;

[0020] Figure 2 It is a schematic structural diagram of a male plug provided by the present invention;

[0021] Figure 3 It is a schematic structural diagram of a female plug provided by the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of a male plug provided by the present invention;

[0023] Figure 5 It is an exploded view of a male plug provided by the present invention;

[0024] Figure 6 It is an exploded view of a female plug provided by the present invention;

[0025] Figure 7 It is a schematic structural diagram of a second housing provided by the present invention;

[0026] Figure 8 It is a schematic structural diagram of a female plug with the second housing removed provided by the present invention;

[0027] Figure 9 It is a schematic structural diagram of an insertion housing provided by the present invention;

[0028] Figure 10 It is a schematic structural diagram of a first housing provided by the present invention.

[0029] In the figure, it includes:

[0030] 1. Male plug; 2. Female plug; 5. Silicone ring; 11. First housing; 14. First silicone sleeve; 21. Second housing; 24. Second silicone sleeve; 4. Accommodating hole; 6. Cable; 111. Waterproof groove; 12. Male terminal; 22. Female terminal; 3. Locking structure; 31. Pressing and buckling part; 33. Buckling protrusion; 32. Connecting part; 311. Pressing part; 312. Buckling part; 321. Material reduction hole; 322. U-shaped groove; 15. Insertion housing; 112. First groove; 151. First clamping protrusion; 152. Partition; 121. First cylindrical part; 122. Second cylindrical part; 123. Third cylindrical part; 124. First docking plane; 154. Second docking plane; 156. First limiting ring surface; 116. Elastic buckling position; 125. First insertion groove; 221. Insertion part; 222. Installation part; 223. Fourth cylindrical part; 224. Second insertion groove; 71. Accommodating elastic piece; 26. Positioning elastic piece; 211. Limiting sliding groove; 261. First clamping protrusion; 262. Second clamping protrusion; 212. Second groove; 228. Third docking plane; 214. Fourth docking plane; 216. Second limiting ring surface; 144. Third clamping protrusion; 114. Fourth groove; 145. Positioning protrusion; 115. Positioning groove; 244. Fourth clamping protrusion; 217. Third groove; 245. Avoidance groove. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only one embodiment of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1 to 10 , the present invention provides a waterproof connector that is easy to assemble.

[0033] As Figure 1 shown, the waterproof connector includes a male plug 1 installed on one side and a female plug 2 installed on the other side; it further includes a locking structure 3, and the locking structure 3 is used to lock the male plug 1 and the female plug 2 after the male plug 1 and the female plug 2 are hermetically connected, so as to restrict the separation of the male plug 1 and the female plug 2.

[0034] In this embodiment, one end of the male plug 1 is inserted into the inside of the female plug 2, and is sealed by a silicone ring 5 installed between the male plug 1 and the female plug 2; as Figure 2 and Figure 5As shown, one end of the first housing 11 is provided with a waterproof groove 111, and a silica gel ring 5 is sleeved inside the waterproof groove 111. The silica gel ring 5 is annular and has a double-wave peak structure. When inserted, the silica gel ring 5 is extruded inside the second housing 21, thereby achieving sealing.

[0035] As Figure 2 and Figure 4 As shown, the male plug 1 includes a first housing 11, and a first silica gel sleeve 14 is installed inside the first housing 11. The outer side of the first silica gel sleeve 14 is snap-connected and sealed with the first housing 11, thereby achieving the sealing between the first silica gel sleeve 14 and the first housing 11. In practical applications, an interference fit can be adopted between the first silica gel sleeve 14 and the first housing 11, and the first silica gel sleeve 14 undergoes a certain deformation, thereby achieving sealing.

[0036] As Figure 6 As shown, the female plug 2 includes a second housing 21, and a second silica gel sleeve 24 is installed inside the second housing 21. The outer side of the second silica gel sleeve 24 is snap-connected and sealed with the second housing 21, thereby achieving the sealing between the second silica gel sleeve 24 and the second housing 21. Similarly, the second silica gel sleeve 24 also has a certain elasticity, and an interference fit can be adopted between the second silica gel sleeve 24 and the second housing 21, and the second silica gel sleeve 24 undergoes a certain deformation, thereby achieving sealing.

[0037] As Figure 4 As shown, the first silica gel sleeve 14 and the second silica gel sleeve 24 are both provided with tapered receiving holes 4 inside, and the diameter becomes smaller towards the inside. A cable 6 is installed inside the receiving hole 4 and is in interference fit with the cable 6. The receiving holes 4 of the first silica gel sleeve 14 and the second silica gel sleeve 24 are tightly connected to the cable 6, achieving the sealing between the cable 6 and the receiving hole 4.

[0038] As Figure 2 and Figure 3 As shown, in this embodiment, two male terminals 12 are installed inside the male plug 1, the rear ends of the male terminals 12 are connected to a cable 6, two female terminals 22 are installed inside the female plug 2, the rear ends of the female terminals 22 are connected to a cable 6, and one end of the male terminal 12 is inserted into the female plug 2.

[0039] As Figure 2 and Figure 3 As shown, the locking structure 3 includes a pressing and buckling part 31 installed on the second housing 21 and a buckling protrusion 33 installed on the first housing 11. The pressing and buckling part 31 and the second housing 21 are connected by a connecting part 32. The connecting part 32 has a certain elasticity, so the pressing and buckling part 31 can rotate a small angle around the connecting part 32, thereby facilitating mutual separation and locking.

[0040] As Figure 3 shown, the pressing and fastening portion 31 includes a pressing portion 311 disposed on one side of the connecting portion 32 and a fastening portion 312 disposed on the other side of the connecting portion 32; the fastening portion 312 is inserted into one side of the fastening protrusion 33 to achieve the fixed connection of the male plug 1 and the female plug 2; the pressing portion 311 has a relatively large area, so that the force can be applied conveniently and the pressure can be reduced; for the convenience of pressing, pressing stripes are further provided on the pressing portion 311; the pressing stripes can contact the fingers to increase the friction with the fingers.

[0041] As Figure 7 shown, a material-reducing hole 321 is provided in the middle of the connecting portion 32, and material-reducing U-shaped grooves 322 are provided on both sides. After the connecting portion 32 adopts the material-reducing design, it has more elasticity. When pulling out, the pressing force is reduced, making it easier to plug and unplug.

[0042] As Figure 4 shown, an insertion housing 15 is provided at one end of the first housing 11, and the first housing 11 and the insertion housing 15 are clamped to each other; at the same time, the other end of the insertion housing 15 is inserted into the second housing 21; specifically, a first groove 112 is provided inside the first housing 11, and a first clamping protrusion 151 is provided at the lower part of the insertion housing 15. The first clamping protrusion 151 is clamped into the first groove 112 to complete the fixed connection; during assembly, the insertion housing 15 with the first clamping protrusion 151 is inserted into the end of the first housing 11 provided with the first groove 112 and clamped to each other to complete the fixation.

[0043] As Figure 2 shown, a plurality of partitions 152 are provided at one end of the insertion housing 15 away from the first clamping protrusion 151, and the partitions 152 isolate the male terminals 12; the male terminals 12 are independent of each other, and partitions 152 are added between the two male terminals 12, so that when the connector is powered on, the creepage distance is increased and the electrical performance is improved.

[0044] As Figure 5 shown, the male terminal 12 includes three parts, namely: a first cylindrical portion 121, a second cylindrical portion 122 and a third cylindrical portion 123. The first cylindrical portion 121, the second cylindrical portion 122 and the third cylindrical portion 123 are all cylindrical. A chamfer is provided at the end of the first cylindrical portion 121 to facilitate subsequent insertion; a first insertion groove 125 is provided inside the third cylindrical portion 123, and a cable 6 is inserted into the first insertion groove 125. Using a riveting device, the third cylindrical portion 123 is riveted and deformed so that the third cylindrical portion 123 is riveted and connected to the cable 6.

[0045] Further, an observation hole may be provided on the third cylindrical portion 123 for observing whether the cable 6 inside the first insertion groove 125 is inserted in place.

[0046] As Figure 5 shown, a first docking plane 124 is provided on the second cylindrical portion 122; as Figure 9 shown, a second docking plane 154 is provided inside the insertion housing 15; the first docking plane 124 and the second docking plane 154 are in contact with each other to achieve effective positioning, and can also play an effective anti-fooling role when the male terminal 12 is inserted.

[0047] In order to fix the male terminal 12, as Figure 9 shown, a first limiting ring surface 156 for limiting the front end of the second cylindrical portion 122 is further provided at the front part of the second docking plane 154; as Figure 10 shown, a number of elastic snap positions 116 are provided inside the first housing 11, and the elastic snap positions 116 are used to limit the rear end of the second cylindrical portion 122, so as to fix the male terminal 12 inside the insertion housing 15, and the fixing effect is as Figure 4 shown.

[0048] Similarly, the female terminal 22 also has a similar structure. As Figure 6 shown, the female terminal 22 includes an inserted portion 221, a mounting portion 222 and a fourth cylindrical portion 223. A second insertion groove 224 is provided inside the fourth cylindrical portion 223, and a cable 6 is inserted inside the second insertion groove 224. Using a riveting press, the fourth cylindrical portion 223 is riveted and deformed so that the fourth cylindrical portion 223 is riveted and connected to the cable 6.

[0049] Further, an observation hole may be provided on the fourth cylindrical portion 223 for observing whether the cable 6 inside the second insertion groove 224 is inserted in place.

[0050] As Figure 6 shown, the inserted portion 221 is provided with four inwardly bent receiving elastic pieces 71. There is a gap between the receiving elastic pieces 71, and the ends of the receiving elastic pieces 71 are also provided with chamfers to facilitate the insertion of the first cylindrical portion 121 into the inside of the receiving elastic pieces 71. When the first cylindrical portion 121 is inserted, the receiving elastic pieces 71 will undergo slight deformation and generate elastic force, so that the receiving elastic pieces 71 are in close contact with the first cylindrical portion 121.

[0051] As Figure 6 shown, a positioning elastic piece 26 is installed inside the second housing 21. As Figure 8 shown, the positioning elastic piece 26 is clamped inside the second housing 21 to fix the female terminal 22; as Figure 7As shown, the second housing 21 is provided with a limiting sliding groove 211, one end of the positioning elastic piece 26 is received in the limiting sliding groove 211, and the positioning elastic piece 26 slides along the limiting sliding groove 211.

[0052] As Figure 6 shown, one side of the positioning elastic piece 26 is provided with a first clamping protrusion 261, and the other side is provided with a second clamping protrusion 262; a second groove 212 is provided inside the limiting sliding groove 211, and the first clamping protrusion 261 is clamped into the second groove 212 to realize the fixation of the positioning elastic piece 26.

[0053] As Figure 6 shown, a third docking plane 228 is provided on the mounting portion 222; as Figure 7 shown, a fourth docking plane 214 is provided inside the second housing 21; the third docking plane 228 corresponds to the fourth docking plane 214 and contacts each other to realize effective positioning, and can also play an effective anti-fooling role when the female terminal 22 is inserted.

[0054] As Figure 7 shown, a second limiting annular surface 216 for limiting the front end of the mounting portion 222 is further provided in front of the fourth docking plane 214; as Figure 8 shown, the second clamping protrusion 262 is used to limit the rear end of the mounting portion 222, and the female terminal 22 is fixed inside the second housing 21 to realize the fixation of the female terminal 22.

[0055] As Figure 5 shown, a plurality of third clamping protrusions 144 are provided on the outside of the first silica gel sleeve 14, and a plurality of fourth grooves 114 are provided inside the first housing 11, and the third clamping protrusions 144 are clamped into the fourth grooves 114; the clamping fixation and clamping seal of the first silica gel sleeve 14 and the first housing 11 are completed.

[0056] Further, a positioning protrusion 145 is further provided on the outside of the first silica gel sleeve 14, and a positioning groove 115 corresponding to the positioning protrusion 145 is provided inside the first housing 11, and the positioning protrusion 145 is inserted into the positioning groove 115.

[0057] As Figure 6 shown, a plurality of fourth clamping protrusions 244 are provided on the outside of the second silica gel sleeve 24, as Figure 7 shown, a plurality of third grooves 217 are provided inside the second housing 21, and the fourth clamping protrusions 244 are clamped into the third grooves 217; the clamping fixation and clamping seal of the second silica gel sleeve 24 and the second housing 21 are completed.

[0058] As Figure 7As shown, limiting sliding grooves 211 are provided on both sides of the second housing 21. In order to avoid the limiting sliding grooves 211, an avoidance groove 245 for avoiding the limiting sliding grooves 211 is further provided on the second silicone sleeve 24, so as to facilitate the assembly of the second silicone sleeve 24 and the second housing 21.

[0059] The assembly process of the waterproof connector:

[0060] First, assemble the male plug 1. Insert the end inserted into the housing 15 into the inside of the first housing 11 to achieve the mutual clamping of the first housing 11 and the inserted housing 15. Specifically, the first clamping protrusion 151 is clamped into the inside of the first groove 112.

[0061] Put the silicone ring 5 on the inside of the waterproof groove 111.

[0062] Insert the first silicone sleeve 14 into the end of the first housing 11 away from the inserted housing 15. The third clamping protrusion 144 is clamped into the inside of the fourth groove 114. The positioning protrusion 145 is inserted into the positioning groove 115. The clamping fixation and clamping seal of the first silicone sleeve 14 and the first housing 11 are completed.

[0063] Insert the cable 6 into the first insertion groove 125, and use a riveting device to rivet and deform the third cylindrical part 123 so that the third cylindrical part 123 and the cable 6 are riveted and connected together.

[0064] Insert the male terminal 12 into the accommodation hole 4. The first docking plane 124 and the second docking plane 154 are in contact with each other to achieve the positioning of the male terminal 12 and the inserted housing 15.

[0065] The first limiting annular surface 156 on the inserted housing 15 is used to limit the front end of the second cylindrical part 122, and the elastic buckling position 116 inside the first housing 11 is used to limit the rear end of the second cylindrical part 122. The male terminal 12 is fixed between the inserted housing 15 and the first housing 11 to complete the assembly of the male plug 1.

[0066] Then, assemble the female plug 2. Insert the positioning elastic piece 26 into the limiting sliding groove 211, and the positioning elastic piece 26 slides along the limiting sliding groove 211. The first clamping protrusion 261 is clamped into the inside of the second groove 212 to achieve the fixation of the positioning elastic piece 26.

[0067] Insert the second silicone sleeve 24 into the inside of the second housing 21. The fourth clamping protrusion 244 is clamped into the inside of the third groove 217. The clamping fixation and clamping seal of the second silicone sleeve 24 and the second housing 21 are completed. The avoidance groove 245 avoids the limiting sliding groove 211.

[0068] Insert the cable 6 into the interior of the second insertion slot 224, and use a riveting device to perform riveting deformation on the fourth cylindrical portion 223 so that the fourth cylindrical portion 223 is riveted and connected to the cable 6;

[0069] Insert the female terminal 22 into the accommodation hole 4. The third docking plane 228 and the fourth docking plane 214 are in contact with each other to achieve the positioning of the female terminal 22 and the second housing 21;

[0070] The second limiting ring surface 216 on the second housing 21 is used to limit the front end of the mounting portion 222, and the second clamping protrusion 262 on the positioning elastic piece 26 is used to limit the rear end of the mounting portion 222, so as to fix the female terminal 22 inside the second housing 21 and achieve the assembly of the female plug 2.

[0071] Finally, insert one end of the male plug 1 into the female plug 2 and seal it through the silicone rubber ring 5 installed between the male plug 1 and the female plug 2; the locking structure 3 is used to lock the male plug 1 and the female plug 2 after the male plug 1 and the female plug 2 are hermetically connected to limit the separation of the male plug 1 and the female plug 2; the fastening portion 312 is inserted into one side of the fastening protrusion 33 to achieve the fixed connection of the male plug 1 and the female plug 2.

[0072] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A waterproof connector that is easy to assemble, characterized in that: It includes a male plug (1) installed on one side and a female plug (2) installed on the other side; one end of the male plug (1) is inserted into the interior of the female plug (2) and sealed by a silica gel ring (5); the male plug (1) includes a first housing (11), and a first silica gel sleeve (14) is installed inside the first housing (11); the outer side of the first silica gel sleeve (14) is snap-fitted and sealed with the first housing (11); the female plug (2) includes a second housing (21), and a second silica gel sleeve (24) is installed inside the second housing (21); the outer side of the second silica gel sleeve (24) is snap-fitted and sealed with the second housing (21); inclined accommodation holes (4) are provided inside both the first silica gel sleeve (14) and the second silica gel sleeve (24), a cable (6) is installed inside the accommodation holes (4) and is in interference fit with the cable (6) to seal between the cable (6) and the accommodation holes (4).

2. The waterproof connector according to claim 1, characterized in that: One end of the first housing (11) is provided with a waterproof groove (111), a silica gel ring (5) is sleeved inside the waterproof groove (111), and the silica gel ring (5) is annular and has a double-wave peak structure.

3. A waterproof connector that is easy to assemble according to claim 1, characterized in that: A number of male terminals (12) are installed inside the male plug (1), the rear ends of the male terminals (12) are connected to a cable (6), a number of female terminals (22) are installed inside the female plug (2), the rear ends of the female terminals (22) are connected to a cable (6), and one end of the male terminals (12) is inserted into the interior of the female plug (2).

4. The waterproof connector according to claim 1, wherein: It further includes a locking structure (3), the locking structure (3) is used to lock the male plug (1) and the female plug (2) after the male plug (1) and the female plug (2) are sealed and joined to limit the separation of the male plug (1) and the female plug (2); the locking structure (3) includes a pressing and fastening part (31) installed on the second housing (21) and a fastening protrusion (33) installed on the first housing (11); the pressing and fastening part (31) and the second housing (21) are connected by a connecting part (32), the pressing and fastening part (31) rotates around the connecting part (32), the pressing and fastening part (31) includes a pressing part (311) installed on one side of the connecting part (32) and a fastening part (312) installed on the other side of the connecting part (32); the fastening part (312) is inserted into one side of the fastening protrusion (33) to realize the fixed connection of the male plug (1) and the female plug (2); a material-reducing hole (321) is provided in the middle of the connecting part (32), and material-reducing U-shaped grooves (322) are provided on both sides.

5. The waterproof connector according to claim 3, characterized in that: One end of the first housing (11) is installed with an insertion housing (15), the first housing (11) and the insertion housing (15) are snap-fitted with each other; a first groove (112) is provided inside the first housing (11), a first snap-fitting protrusion (151) is provided at the lower part of the insertion housing (15), the first snap-fitting protrusion (151) is snapped into the first groove (112), a number of partition bars (152) are provided at one end of the insertion housing (15) away from the first snap-fitting protrusion (151), and the partition bars (152) isolate the male terminals (12).

6. The waterproof connector according to claim 5, characterized in that: The male terminal (12) includes a first cylindrical portion (121), a second cylindrical portion (122), and a third cylindrical portion (123). A first docking plane (124) is provided on the second cylindrical portion (122); a second docking plane (154) corresponding to the first docking plane (124) is provided inside the insertion housing (15); a first limiting annular surface (156) for limiting the front end of the second cylindrical portion (122) is further provided at the front of the second docking plane (154); a number of elastic buckling positions (116) are provided inside the first housing (11), and the elastic buckling positions (116) are used to limit the rear end of the second cylindrical portion (122) to fix the male terminal (12) inside the insertion housing (15). A first insertion groove (125) is provided inside the third cylindrical portion (123), a cable (6) is inserted inside the first insertion groove (125), and the third cylindrical portion (123) is riveted and connected to the cable (6).

7. The waterproof connector according to claim 6, wherein: The female terminal (22) includes an inserted portion (221), a mounting portion (222), and a fourth cylindrical portion (223). A second insertion groove (224) is provided inside the fourth cylindrical portion (223), a cable (6) is inserted inside the second insertion groove (224), and the fourth cylindrical portion (223) is riveted and connected to the cable (6); a number of inwardly bent receiving elastic pieces (71) are provided on the inserted portion (221), the first cylindrical portion (121) is inserted inside the receiving elastic pieces (71), and the receiving elastic pieces (71) are in close contact with the first cylindrical portion (121) by elastic force.

8. The waterproof connector according to claim 7, wherein: A positioning elastic piece (26) is installed inside the second housing (21), and the positioning elastic piece (26) is clamped inside the second housing (21) to fix the female terminal (22); the second housing (21) is provided with a limiting sliding groove (211), one end of the positioning elastic piece (26) is received by the limiting sliding groove (211), the positioning elastic piece (26) slides along the limiting sliding groove (211), a first clamping protrusion (261) is provided on one side of the positioning elastic piece (26), and a second clamping protrusion (262) is provided on the other side; a second groove (212) is provided inside the limiting sliding groove (211), and the first clamping protrusion (261) is clamped inside the second groove (212); a third docking plane (228) is provided on the mounting portion (222); a fourth docking plane (214) corresponding to the third docking plane (228) is provided inside the second housing (21); a second limiting annular surface (216) for limiting the front end of the mounting portion (222) is further provided at the front of the fourth docking plane (214); the second clamping protrusion (262) is used to limit the rear end of the mounting portion (222) to fix the female terminal (22) inside the second housing (21).

9. The waterproof connector according to claim 1, wherein: A number of third clamping protrusions (144) are provided on the outside of the first silica gel sleeve (14), and a number of fourth grooves (114) are provided inside the first housing (11). The third clamping protrusions (144) are snapped into the fourth grooves (114); a positioning protrusion (145) is further provided on the outside of the first silica gel sleeve (14), and a positioning groove (115) corresponding to the positioning protrusion (145) is provided inside the first housing (11). The positioning protrusion (145) is inserted into the positioning groove (115).

10. A waterproof connector that is easy to assemble according to claim 8, characterized in that: A number of fourth clamping protrusions (244) are provided on the outside of the second silica gel sleeve (24), and a number of third grooves (217) are provided inside the second housing (21). The fourth clamping protrusions (244) are snapped into the third grooves (217); an avoidance groove (245) for avoiding the limit sliding groove (211) is further provided on the second silica gel sleeve (24).

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