Power socket

Abstract

The utility model discloses a power socket, which comprises a male head and a female head, and is characterized in that the male head comprises a male terminal, a second snap spring, a male rubber core, a male sealing ring I, a male sealing ring II and a male nut; the female head comprises a female front rubber core, a female sealing ring, a first clamping spring, an anti-opening ring, a female terminal, a screw, a female rear rubber core, a wire clamp sealing ring and a nut, the male rubber core is provided with a male rubber core buckle, and the female front rubber core is provided with a female front rubber core clamping hole matched with the male rubber core buckle. When the male rubber core buckle is clamped in the female front rubber core clamping hole, the outer surface of the male rubber core buckle is lower than the surface of the outer ring of the female front rubber core; according to the novel technical scheme of the utility model, the power socket has a buckling function, the male head and the female head are not easy to fall off after being connected, the connection is not easy to detach by hands, and the power socket has better sealing effect and waterproof and dustproof effect, thereby achieving the purposes of safe use, reliable connection and high reliability. The safety effect of the power supply contact area is effectively ensured; and the potential safety hazard of the equipment is further avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of socket devices, in particular to a power socket, and more particularly to a power socket that is waterproof and dustproof, safe to use and has reliable connection. Background Art

[0002] As an energy source, power supply has a wide range of applications. Basically all electronic devices require power supply.

[0003] In actual applications, to ensure the normal operation of equipment, power must be supplied continuously and uninterruptedly, especially for some precision equipment, which stores a large amount of data and exchanges data with servers or related equipment at all times. If the power supply is interrupted or abnormal in the middle of the process, even if there is a poor contact between the power plug and the socket for milliseconds, it will cause the loss of device data transmission, which will cause huge losses to users.

[0004] In addition, there are also safety hazards in power transmission, especially some high-power equipment, such as industrial inverters, whose transmission voltage is 380 volts and the current is as high as over 100 amperes. If there is a contact problem during the connection process, it may instantly catch fire. If it is not discovered in time, a fire may occur, which will also cause huge casualties and property losses. Utility Model Content

[0005] In view of the above technical problems in the related art, the present invention provides a power socket that can overcome the above deficiencies in the prior art.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0007] A power socket;

[0008] The power socket includes a male connector and a female connector. The male connector includes a male terminal, a second retaining spring, a male rubber core, a first male sealing ring, a second male sealing ring and a male nut. The female connector includes a female front rubber core, a female sealing ring, a first retaining spring, an anti-opening ring, a female terminal, a screw, a female rear rubber core, a wire clamp sealing ring and a nut. The male rubber core is provided with a male rubber core buckle, and the female front rubber core is provided with a female front rubber core clamping hole adapted to the male rubber core buckle. When the male rubber core buckle is clamped in the female front rubber core clamping hole, the outer surface of the male rubber core buckle is lower than the outer ring surface of the female front rubber core.

[0009] Furthermore, the male rubber core is provided with a male rubber core sealing ring groove and a male rubber core external thread, the male rubber core sealing ring groove is provided with a male sealing ring 1, the male rubber core is provided with a male rubber core external thread, the inner side of the male nut is provided with a male nut internal thread corresponding to the male rubber core external thread, and a male sealing ring 2 is also provided between the male nut and the male rubber core.

[0010] Furthermore, the male terminal includes a male terminal retaining spring groove and a male terminal wire plug hole, a second retaining spring is sleeved in the male terminal retaining spring groove, a second retaining spring opening and a second retaining spring limiting plane are provided on the second retaining spring, the second retaining spring opening is sleeved in the male terminal retaining spring groove, the second retaining spring limiting plane is engaged with the male rubber core retaining spring limiting surface, thereby limiting the male terminal from being pulled out.

[0011] Furthermore, a hexagonal female rubber core hexagon is provided at the tail of the nut, and the wire clamp sealing ring is installed in the female rubber core flower bar teeth on the female rubber core. During the process of locking the nut, the wire clamp sealing ring and the female rubber core flower bar teeth will shrink, fit and wrap.

[0012] Furthermore, the rear female rubber core is provided with a rear female rubber core inner tooth and a rear female rubber core anti-retraction tooth, and the front female rubber core is provided with a front female rubber core outer tooth and a front female rubber core anti-retraction block. After the rear female rubber core and the front female rubber core are fastened by the rear female rubber core inner tooth and the front female rubber core outer tooth, the front female rubber core anti-retraction block is clamped on the rear female rubber core anti-retraction tooth, and a female sealing ring is provided between the rear female rubber core and the front female rubber core.

[0013] Furthermore, the female front rubber core includes a female front rubber core retaining spring limiting surface and a female front rubber core terminal insertion hole. The female terminal is connected to the wire and inserted into the female front rubber core terminal insertion hole. The first retaining spring releases its elasticity and opens outward, so that the first retaining spring limiting plane is engaged with the female front rubber core retaining spring limiting surface, thereby limiting the female terminal from being pulled out.

[0014] Furthermore, a female front rubber core spacer is provided on the female front rubber core, and the female front rubber core spacer separates the terminals with installed wires from each other, thereby preventing short circuits between the wires.

[0015] Furthermore, the female terminal is provided with a female terminal retaining spring groove, a female terminal inner ring of the socket, a female terminal outer ring of the socket, a female terminal contact spring and a female terminal slot. The first retaining spring opening of the first retaining spring is sleeved in the female terminal retaining spring groove, and the female terminal contact spring is designed with an anti-opening loop on the outer side of the plug. The anti-opening loop inner hole of the anti-opening loop passes through the outer ring of the female terminal to the socket and enters the inner ring of the female terminal to the socket through its own elasticity.

[0016] Furthermore, when the male terminal is inserted into the female terminal, the contact spring of the female terminal will be stretched and bounced up. After being stretched and bounced up, the inner ring of the female terminal socket will press against the anti-opening loop inner hole. Under the action of the anti-opening loop elastic tension, the inner ring of the female terminal socket will be subject to the anti-opening loop elastic tension and increase the insertion force between the female terminal and the male terminal.

[0017] The beneficial effects of the utility model are as follows: through the new technical solution of the utility model product, the power socket has a snap-on function, the male and female heads will not fall off easily after being connected, the connection is not easy to disassemble with bare hands, and it has better sealing effect and waterproof and dustproof effect, thereby achieving the technical effect of safe use, reliable connection, effective guarantee of the safety of the power contact area, and further avoiding the occurrence of equipment safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a first exploded view of a power socket according to an embodiment of the present utility model;

[0020] Figure 2 is a second exploded view of a power socket according to an embodiment of the present utility model;

[0021] Figure 3 This is a cross-sectional view of a rubber core plug-in portion of a power socket according to an embodiment of the present utility model;

[0022] Figure 4 This is a three-dimensional diagram of the front and rear female rubber cores of a power socket according to an embodiment of the present utility model;

[0023] Figure 5 This is a three-dimensional diagram of an assembled power socket according to an embodiment of the present utility model;

[0024] In the picture:

[0025] 1. Nut; 2. Nut inner thread;

[0026] 3. Wire clamp sealing ring; 4. Inner hole of wire clamp sealing ring;

[0027] 5. Mother rubber core; 6. Mother rubber core hexagonal; 7. Mother rubber core flower bar teeth; 8. Mother rubber core outer teeth; 9. Mother rubber core inner teeth; 10. Mother rubber core anti-retraction teeth;

[0028] 11. Screw; 12. External screw thread; 13. Internal screw hole;

[0029] 14. Female terminal; 15. Female terminal wire hole; 16. Female terminal inner thread; 17. Female terminal spring groove; 18. Female terminal to socket inner ring; 19. Female terminal to socket outer ring; 20. Female terminal contact spring; 21. Female terminal slot;

[0030] 22. Anti-opening loop; 23. Anti-opening loop inner hole;

[0031] 24. First retaining spring; 25. First retaining spring limiting plane; 26. First retaining spring opening;

[0032] 27. Female sealing ring; 28. Inner ring of female sealing ring;

[0033] 29. Female front rubber core; 30. Female front rubber core spacer; 31. Female front rubber core outer thread; 32. Female front rubber core clamping hole; 33. Female front rubber core insertion hole; 34. Female front rubber core anti-retraction clamping block; 35. Female front rubber core outer ring surface; 36. Female front rubber core retaining spring limit surface; 37. Female front rubber core terminal insertion hole;

[0034] 38. Male nut; 39. Male nut internal thread;

[0035] 40. Male sealing ring 2; 41. Inner ring of male sealing ring 2;

[0036] 42. Male sealing ring 1; 43. Male sealing ring 1 inner ring;

[0037] 44. Male rubber core; 45. Male rubber core buckle; 46. Male rubber core sealing ring slot; 47. Male rubber core external thread; 48. Male rubber core terminal jack; 49. Male rubber core retaining spring limit surface;

[0038] 50. Second retaining spring; 51. Second retaining spring opening; 52. Second retaining spring limiting plane;

[0039] 53. Male terminal; 54. Male terminal retaining spring slot; 55. Male terminal wire plug hole. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0041] It should be understood that in the description of the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0042] like Figure 1-5 As shown, a power socket according to an embodiment of the present invention includes a male head and a female head, the male head includes a male terminal 53, a second retaining spring 50, a male rubber core 44, a male sealing ring 1 42, a male sealing ring 2 40 and a male nut 38; the female head includes a female front rubber core 29, a female sealing ring 27, a first retaining spring 24, an anti-opening ring 22, a female terminal 14, a screw 11, a female rear rubber core 5, a wire clamp sealing ring 3 and a nut 1, the male rubber core 44 is provided with a male rubber core buckle 45, the female front rubber core 29 is provided with a female front rubber core clamping hole 32 adapted to the male rubber core buckle 45, when the male rubber core buckle 45 is clamped in the female front rubber core clamping hole 32, the outer surface of the male rubber core buckle 45 is lower than the outer ring surface 35 of the female front rubber core.

[0043] According to a power socket described in an embodiment of the present utility model, in a specific embodiment, the male rubber core 44 is provided with a male rubber core sealing ring-1 groove 46 and a male rubber core external thread 47, the male rubber core sealing ring-1 groove 46 is provided with a male sealing ring-1 42, the male rubber core 44 is provided with a male rubber core external thread 47, the inner side of the male nut 38 is provided with a male nut internal thread 39 corresponding to the male rubber core external thread 47, and a male sealing ring-2 40 is further provided between the male nut 38 and the male rubber core 44.

[0044] According to a power socket described in an embodiment of the present utility model, in a specific embodiment, the male terminal 53 includes a male terminal retaining spring groove 54 and a male terminal wire plug hole 55, and a second retaining spring 50 is sleeved in the male terminal retaining spring groove 54, and a second retaining spring opening 51 and a second retaining spring limiting plane 52 are provided on the second retaining spring 50. The second retaining spring opening 51 is sleeved in the male terminal retaining spring groove 54, and the second retaining spring limiting plane 52 is engaged with the male rubber core retaining spring limiting surface 49, thereby limiting the male terminal 53 from being pulled out.

[0045] According to a power socket described in an embodiment of the present invention, in a specific embodiment, a hexagonal female rubber core hexagon 6 is provided at the tail of the nut 1, and the wire clamp sealing ring 3 is installed in the female rubber core flower bar teeth 7 on the female rubber core 5. When the nut 1 is locked, the wire clamp sealing ring 3 and the female rubber core flower bar teeth 7 will shrink, fit and wrap.

[0046] According to a power socket described in an embodiment of the present utility model, in a specific embodiment, the female rear rubber core 5 is further provided with a female rear rubber core inner tooth 9 and a female rear rubber core anti-retraction tooth 10, and the female front rubber core 29 is provided with a female front rubber core outer tooth 31 and a female front rubber core anti-retraction block 34. After the female rear rubber core 5 and the female front rubber core 29 are fastened by the female rear rubber core inner tooth 9 and the female front rubber core outer tooth 31, the female front rubber core anti-retraction block 34 is clamped on the female rear rubber core anti-retraction tooth 10, and a female sealing ring 27 is provided between the female rear rubber core 5 and the female front rubber core 29.

[0047] According to a power socket described in an embodiment of the present utility model, in a specific embodiment, the female front rubber core 29 includes a female front rubber core retaining spring limiting surface 36 and a female front rubber core terminal insertion hole 37. The female terminal 14 is connected to the wire and inserted into the female front rubber core terminal insertion hole 37. The first retaining spring 24 releases its elasticity and opens outward, so that the first retaining spring limiting plane 25 is engaged with the female front rubber core retaining spring limiting surface 36, thereby limiting the female terminal 14 from being pulled out.

[0048] According to a power socket described in an embodiment of the present invention, in a specific embodiment, a female front rubber core 29 is provided with a female front rubber core spacer 30, and the female front rubber core spacer 30 separates the terminals with installed wires and prevents short circuits between the wires.

[0049] According to a power socket described in an embodiment of the present utility model, in a specific embodiment, the female terminal 14 is provided with a female terminal retaining spring groove 17, a female terminal to socket inner ring 18, a female terminal to socket outer ring 19, a female terminal contact spring 20 and a female terminal slot 21, and the first retaining spring opening 26 of the first retaining spring 24 is sleeved in the female terminal retaining spring groove 17, and the female terminal contact spring 20 is designed with an anti-opening ring 22 on the outer side of the plug, and the anti-opening ring inner hole 23 of the anti-opening ring 22 passes through the female terminal to socket outer ring 19 and enters the female terminal to socket inner ring 18 through its own elasticity.

[0050] According to a power socket described in an embodiment of the present invention, in a specific embodiment, when the male terminal 53 is inserted into the female terminal 14, the female terminal contact spring 20 will be stretched and bounced. After being stretched and bounced, the inner ring 18 of the female terminal socket will be pushed against the anti-opening ring inner hole 23. Under the action of the elastic tension of the anti-opening ring 22, the inner ring 18 of the female terminal socket will be subject to the elastic tension of the anti-opening ring 22 and increase the insertion force between the female terminal and the male terminal 53.

[0051] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0052] During specific installation or use, a power socket according to the present invention includes a male head and a female head, wherein the male head includes a male terminal 53, a second retaining spring 50, a male rubber core 44, a male sealing ring 1 42, a male sealing ring 2 40 and a male nut 38; the female head includes a female front rubber core 29, a female sealing ring 27, a first retaining spring 24, an anti-opening ring 22, a female terminal 14, a screw 11, a female rear rubber core 5, a wire clamp sealing ring 3 and a nut 1.

[0053] First, insert the copper wire of the electric wire into the wire plug hole 55 of the male terminal. After plugging it in, use the tool to press the copper wire tightly. Then, insert the opening 51 of the second retaining spring into the retaining spring groove 54 of the male terminal. After locking it, insert the male terminal 53 with the electric wire into the male rubber core terminal insertion hole 48. During the insertion process, the second retaining spring 50 will shrink inward through the male rubber core terminal insertion hole 48 due to its own elasticity. After passing through, the second retaining spring 50 releases its elasticity and opens outward. After opening, the second retaining spring limiting plane 52 will be engaged with the male rubber core retaining spring limiting surface 49 to limit the male terminal 53 from being pulled out.

[0054] After completing the assembly of the male terminal 53, the male sealing ring 42 is installed into the male rubber core sealing ring groove 46. Since the male sealing ring 42 has good elasticity, the male sealing ring inner ring 43 is tightly clamped in the male rubber core sealing ring groove 46 by its own elasticity to complete the assembly of the male sealing ring 42; the main purpose of the male sealing ring 42 is to achieve sealing of the male and female plug-in areas after the male and female plugs are assembled through the male sealing ring 42, which can prevent liquids and dust from entering the contact area and ensure the safety of the contact area.

[0055] After the male sealing ring 1 42 is installed, the entire product is passed through the panel mounting hole (this panel is the mounting hole set on the terminal device). After passing through, the inner ring 41 of the male sealing ring 2 is passed through the male rubber core outer thread 47. After passing through, the male nut 38 is locked into the male rubber core 44. The male nut inner thread 39 set on the male nut 38 and the male rubber core outer thread 47 of the male rubber core 44 are tightened to achieve the installation purpose of the entire male head product.

[0056] In the same way as the male terminal 53, the first retaining spring opening 26 of the first retaining spring 24 is inserted into the retaining spring groove 17 of the female terminal to complete the assembly of the first retaining spring 24. In order to ensure the good contact elasticity of the female terminal 14, a number of female terminal slots 21 are opened around the contact port of the female terminal. After the female terminal slots 21 are opened, the female terminal contact spring 20 is divided into a number of springs. In order to further improve the contact reliability of the female terminal 14, the female terminal contact spring 20 is designed with an anti-opening ring 22 on the outer side of the plug. The anti-opening ring inner hole 23 passes through the outer ring 19 of the female terminal socket through its own elasticity and enters the inner ring 18 of the female terminal socket. This completes the assembly of the anti-opening ring 22.

[0057] After the anti-opening ring 22 is assembled, when the male terminal 53 is inserted into the female terminal 14, the female terminal contact spring 20 will be stretched and bounced. After being stretched and bounced, the inner ring 18 of the female terminal socket will push against the inner hole 23 of the anti-opening ring. Because the anti-opening ring 22 itself has a certain elasticity, under the action of the elastic tension of the anti-opening ring 22, the inner ring 18 of the female terminal socket will be affected by the elastic tension of the anti-opening ring 22 and increase the insertion force between the male terminal 53, further tightly wrapping the male terminal 53, thereby improving the contact reliability.

[0058] After the female terminal 14 is assembled, the copper wire of the wire is inserted into the female head wire plug hole 15. After plugging it, use a tool to put it into the screw inner hole 13, and then lock the screw 11 into the female terminal inner tooth 16. Tighten it through the screw outer tooth 12 and the female terminal inner tooth 16. While tightening, the screw 11 also tightly presses the copper wire of the wire, thereby achieving the purpose of contact. In order to improve the pressure resistance between the female terminals, a female front rubber core spacer 30 is designed on the female front rubber core 29. The female front rubber core spacer 30 will separate the terminals with installed wires from each other to prevent short circuits between the wires.

[0059] After the female terminal 14 and the wire are assembled, the female terminal 14 with the wire is inserted into the female front rubber core terminal insertion hole 37. During the insertion process, the first clip 24 first shrinks inwards through the female front rubber core terminal insertion hole 37 due to its own elasticity. After passing through, the first clip 24 releases its elasticity and opens outwards. After opening, the first clip limit plane 25 will engage with the female front rubber core clip limit surface 36 to limit the terminal from being pulled out.

[0060] After the assembly is completed, the female sealing ring 27 is passed through the female sealing ring inner ring 28 and through the female front rubber core outer tooth 31, and then the female rear rubber core 5 is locked into the female front rubber core 29, and fastened by the female rear rubber core inner tooth 9 and the female front rubber core outer tooth 31. Because the female sealing ring 27 is arranged between the female front rubber core 29 and the female rear rubber core 5, especially after the female rear rubber core 5 and the female front rubber core 9 are fastened by the internal and external screw threads, it can achieve a good sealing effect.

[0061] In order to prevent the front female rubber core 29 and the rear female rubber core 5 from splitting under extreme circumstances, the rear female rubber core 5 is also designed with a rear female rubber core anti-retraction tooth 10, and the front female rubber core 29 is designed with a front female rubber core anti-retraction block 34; when the rear female rubber core 5 and the front female rubber core 29 are fastened by the internal and external teeth, the front female rubber core anti-retraction block 34 will jam the rear female rubber core anti-retraction tooth 10, thereby ensuring that the rear female rubber core 5 will not easily separate from the front female rubber core 29.

[0062] After the nut 1 is locked, the wire clamp sealing ring 3 and the female rear rubber core flower bar teeth 7 will shrink. By continuously shrinking, the flower bar teeth will be completely fitted together. After fitting, the female rear rubber core flower bar teeth 7 and the wire clamp sealing ring 3 will tightly wrap the outer sheath of the wire. Under the action of the wire clamp sealing ring 3 and the female rear rubber core flower bar teeth 7, a good waterproof and dustproof effect will be formed between the wire and the wire clamp sealing ring 3. In order to reduce the operating strength of the locking nut 1, a hexagonal female rear rubber core hexagon 6 is designed at the tail of the nut 1. The hexagonal female rear rubber core hexagon 6 can be engaged with a tool (such as a wrench) to easily lock the nut 1 onto the female rear rubber core 5.

[0063] In order to improve the reliability of the connection between the male and female connectors, a male rubber core buckle 45 is designed on the male connector, and a female front rubber core clamping hole 32 is designed on the female front rubber core 29. After the male and female connectors are plugged into each other, the male rubber core buckle 45 on the male rubber core 44 will be stuck in the female front rubber core clamping hole 32 on the female front rubber core 29. After being stuck, it will ensure that the male and female connectors will not fall off easily after being connected.

[0064] To further enhance the safety of the connection between the male and female connectors, when the male core buckle 45 of the male core 44 is engaged with the female front core buckle hole 32 of the female front core 29, the male core buckle 45 is lower than the outer ring surface 35 of the female front core and cannot be easily opened by hand. A tool is required to open the buckle. This ensures that the male and female connectors will not be easily damaged by others, thereby further enhancing the reliability of the connection.

[0065] To sum up, with the help of the above-mentioned technical solution of the utility model, through the new technical solution of the product of the utility model, the power socket has a snap-on function, the male head and the female head will not fall off easily after being connected, the connection is not easy to disassemble with bare hands, and it has better sealing effect and waterproof and dustproof effect, thereby achieving the effect of safe use, reliable connection, effective guarantee of the safety of the power contact area, and further avoiding the occurrence of equipment safety hazards.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power socket, characterized in that: The invention comprises a male head and a female head, wherein the male head comprises a male terminal (53), a second retaining spring (50), a male rubber core (44), a male sealing ring 1 (42), a male sealing ring 2 (40) and a male nut (38); the female head comprises a female front rubber core (29), a female sealing ring (27), a first retaining spring (24), an anti-opening ring (22), a female terminal (14), a screw (11), a female rear rubber core (5), a wire clamp sealing ring (3) and a nut (1), wherein the male rubber core (44) is provided with a male rubber core buckle (45), and the female front rubber core (29) is provided with a female front rubber core clamping hole (32) adapted to the male rubber core buckle (45), and when the male rubber core buckle (45) is clamped in the female front rubber core clamping hole (32), the outer surface of the male rubber core buckle (45) is lower than the outer ring surface (35) of the female front rubber core.

2. A power socket according to claim 1, characterized in that: The male rubber core (44) is provided with a male rubber core sealing ring groove (46) and a male rubber core external thread (47), the male rubber core sealing ring groove (46) is provided with a male sealing ring (42) inside, the male rubber core (44) is provided with a male rubber core external thread (47), the inner side of the male nut (38) is provided with a male nut internal thread (39) corresponding to the male rubber core external thread (47), and a male sealing ring (40) is further provided between the male nut (38) and the male rubber core (44).

3. A power socket according to claim 2, characterized in that: The male terminal (53) comprises a male terminal retaining spring groove (54) and a male terminal wire plug hole (55); a second retaining spring (50) is sleeved in the male terminal retaining spring groove (54); a second retaining spring opening (51) and a second retaining spring limiting plane (52) are provided on the second retaining spring (50); the second retaining spring opening (51) is sleeved in the male terminal retaining spring groove (54); the second retaining spring limiting plane (52) is engaged with the male rubber core retaining spring limiting surface (49), thereby limiting the male terminal (53) from being pulled out.

4. The power socket according to claim 1, characterized in that: The tail of the nut (1) is provided with a hexagonal female rubber core hexagon (6), and the wire clamp sealing ring (3) is installed in the female rubber core flower bar teeth (7) on the female rubber core (5). When the nut (1) is locked, the wire clamp sealing ring (3) and the female rubber core flower bar teeth (7) will shrink, fit and wrap.

5. A power socket according to claim 4, characterized in that: The rear rubber core (5) is further provided with a rear rubber core inner tooth (9) and a rear rubber core anti-retraction tooth (10), and the front rubber core (29) is provided with a front rubber core outer tooth (31) and a front rubber core anti-retraction block (34). After the rear rubber core (5) and the front rubber core (29) are fastened together by the rear rubber core inner tooth (9) and the front rubber core outer tooth (31), the front rubber core anti-retraction block (34) is clamped on the rear rubber core anti-retraction tooth (10), and a female sealing ring (27) is provided between the rear rubber core (5) and the front rubber core (29).

6. The power socket according to claim 1, characterized in that: The female front rubber core (29) includes a female front rubber core retaining spring limiting surface (36) and a female front rubber core terminal jack (37). The female terminal (14) is connected to the wire and inserted into the female front rubber core terminal jack (37). The first retaining spring (24) releases its elasticity and opens outward, so that the first retaining spring limiting surface (25) and the female front rubber core retaining spring limiting surface (36) are engaged, thereby limiting the female terminal (14) from being pulled out.

7. The power socket according to claim 6, characterized in that: A female front rubber core spacer (30) is provided on the female front rubber core (29), and the female front rubber core spacer (30) separates terminals with installed wires from each other, thereby preventing short circuits between the wires.

8. The power socket according to claim 1, characterized in that: The female terminal (14) is provided with a female terminal spring groove (17), a female terminal socket inner ring (18), a female terminal socket outer ring (19), a female terminal contact spring (20) and a female terminal slot (21); the first spring opening (26) of the first spring (24) is sleeved in the female terminal spring groove (17); the female terminal contact spring (20) is provided with an anti-opening ring (22) on the outer side of the plug; the anti-opening ring inner hole (23) of the anti-opening ring (22) passes through the female terminal socket outer ring (19) and enters the female terminal socket inner ring (18) through its own elasticity.

9. The power socket according to claim 8, characterized in that: When the male terminal (53) is inserted into the female terminal (14), the female terminal contact spring (20) will be stretched and bounced. After being stretched and bounced, the inner ring (18) of the female terminal socket will be pushed against the anti-opening ring inner hole (23). Under the action of the elastic tension of the anti-opening ring (22), the inner ring (18) of the female terminal socket will be subjected to the elastic tension of the anti-opening ring (22) and increase the insertion force between the female terminal and the male terminal (53).

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