Safety socket

Abstract

The invention provides a safety socket. The safety socket comprises a surface shell, a bottom shell and an elastic waterproof pad, the face shell is provided with a jack, and the elastic waterproof pad is fixed on the face shell. The elastic waterproof pad is provided with a first through hole, and the first through hole is used for the insertion of a plug pin. A protective door is arranged below the elastic waterproof pad, a plane is arranged on the side, attached to the elastic waterproof pad, of the protective door, the plane abuts against the elastic waterproof pad, and the protective door seals the first through hole when the plug pin is not inserted into the first through hole. Therefore, water is prevented from entering the socket.

Description

Technical Field

[0001] The invention relates to the technical field of sockets, and in particular to a safety socket. Background Art

[0002] The socket is prone to cause safety accidents when liquid enters it. In order to avoid safety accidents, an elastic waterproof part is arranged at the socket hole in the prior art to seal the socket hole to achieve the purpose of waterproofing.

[0003] However, as the number of plugging and unplugging increases, the waterproof parts are easily damaged, resulting in a decrease in waterproof performance.

[0004] Therefore, there are still problems to be solved in the prior art. Summary of the invention

[0005] The main purpose of the present invention is to provide a safety socket, aiming to avoid the reduction of the waterproof performance of the socket due to the wear of the waterproof part.

[0006] To achieve the above-mentioned purpose, the safety socket proposed in the present invention includes a face shell, a bottom shell and an elastic waterproof pad; the face shell is provided with a socket, and the elastic waterproof pad is fixed to the face shell; the elastic waterproof pad is provided with a first through hole, and the first through hole is used for inserting the plug pin; a protective door is provided below the elastic waterproof pad, and a plane is provided on one side of the protective door that is in contact with the elastic waterproof pad, and the plane abuts the elastic waterproof pad, and the protective door closes the first through hole when the plug pin is not inserted into the first through hole.

[0007] Preferably, the inner side surface of the surface shell is provided with a first convex portion; the elastic waterproof pad is provided with a fixing hole, and the first convex portion is embedded in the fixing hole.

[0008] Preferably, a locking portion for limiting the elastic waterproof pad is provided at the end of the first protrusion to prevent the elastic waterproof pad from falling off.

[0009] Preferably, a first groove is provided on the inner side surface of the surface shell, and the elastic waterproof pad is arranged in the first groove.

[0010] Preferably, the first groove includes an outer sub-groove and an inner sub-groove, and the insertion hole is opened at the bottom of the inner sub-groove; the elastic waterproof pad is provided with a second convex portion, and the second convex portion is embedded in the outer sub-groove; the outer sub-groove is formed by extending outward from the edge of the inner sub-groove; the second convex portion is located at the edge of the elastic waterproof pad.

[0011] Preferably, the outer sub-groove is narrowed at the junction with the inner sub-groove.

[0012] Preferably, a socket unit is arranged below the elastic waterproof pad, and the socket unit comprises a unit shell; the unit shell is provided with a second through hole for inserting the plug pin; an abutment portion is formed on the unit shell, and the abutment portion abuts against the elastic waterproof pad.

[0013] Preferably, a cavity is formed on the unit shell, a second through hole is provided at the bottom of the cavity, and an abutment portion is formed at the end of a side wall of the cavity.

[0014] Preferably, the cavity comprises a first sub-cavity and a second sub-cavity, a partition is arranged between the first sub-cavity and the second sub-cavity, and an end of the partition forms an abutment portion.

[0015] Preferably, the second through hole comprises a ground wire hole, a ground wire surrounding wall is formed at the ground wire hole, and an end of the ground wire surrounding wall forms an abutment portion.

[0016] Preferably, a second groove is provided on the outer side surface of the face shell, the second groove is located around the socket, and the second groove is provided with a waterproof abutment; the waterproof abutment abuts against the end face of the plug to prevent liquid from entering the socket through the plug and the face shell when the plug pin is inserted into the socket.

[0017] Preferably, a third through hole is provided at the bottom of the second groove, and a first connecting column is provided in the third through hole; the waterproof abutment is connected to one end of the first connecting column or is integrally formed with the first connecting column, and the elastic waterproof pad is connected to the other end of the first connecting column or is integrally formed with the first connecting column.

[0018] Preferably, a third groove is provided on the outer side of the face shell, and the jack is located at the bottom of the third groove; the elastic waterproof pad includes a first elastic sub-waterproof pad and a second elastic sub-waterproof pad, the first elastic sub-waterproof pad is arranged in the third groove, and the second elastic sub-waterproof pad is arranged below the face shell; the first elastic sub-waterproof pad and the second elastic sub-waterproof pad are provided with a first through hole, and a protective door is arranged below the second elastic sub-waterproof pad, and the protective door closes the first through hole of the second elastic sub-waterproof pad when the plug pin is not inserted into the first through hole of the second elastic sub-waterproof pad.

[0019] Preferably, a fourth through hole is provided at the bottom of the third groove, and a second connecting column is provided in the fourth through hole; the first elastic sub-waterproof pad is connected to one end of the second connecting column or is integrally formed with the second connecting column, and the second elastic sub-waterproof pad is connected to the other end of the second connecting column or is integrally formed with the second connecting column.

[0020] Preferably, a sealing portion is provided at the first through hole, and the sealing portion is integrally formed with the side wall of the first through hole; the sealing portion is used to close the first through hole when the plug pin is not inserted into the first through hole, and is used to wrap the plug pin when the plug pin is inserted into the first through hole.

[0021] Preferably, the sealing portion includes a first sub-sealing portion and a second sub-sealing portion; when the plug pin is inserted into the first through hole, the first sub-sealing portion and the second sub-sealing portion bend downward, and the ends or upper surfaces of the first sub-sealing portion and the second sub-sealing portion are in close contact with the plug pin.

[0022] The safety socket provided in the embodiment of the present application comprises a housing, a bottom housing and an elastic waterproof pad; the housing is provided with a plug hole, the elastic waterproof pad is fixed to the housing; the elastic waterproof pad is provided with a first through hole, the first through hole is used for inserting the plug pin; a protective door is provided below the elastic waterproof pad, a plane is provided on one side of the protective door that is in contact with the elastic waterproof pad, the plane abuts against the elastic waterproof pad, and the protective door closes the first through hole when the plug pin is not inserted into the first through hole. In this way, water is prevented from entering the interior of the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of an embodiment of a safety socket of the present invention;

[0025] Figure 2 An exploded view of an embodiment of a safety socket of the present invention;

[0026] Figure 3 Another schematic diagram of an embodiment of a safety socket of the present invention;

[0027] Figure 4 for Figure 3 An enlarged view of part A;

[0028] Figure 5 A schematic diagram of an elastic waterproof pad of an embodiment of a safety socket of the present invention;

[0029] Figure 6 A schematic diagram of a cover of a safety socket according to an embodiment of the present invention;

[0030] Figure 7 for Figure 6 An enlarged view of part B;

[0031] Figure 8 An exploded view of another embodiment of the safety socket of the present invention;

[0032] Fig. 9 A schematic diagram of a cover of another embodiment of a safety socket of the present invention;

[0033] Fig.10 for Fig. 9 An enlarged view of part C;

[0034] Fig.11Another schematic diagram of a cover of another embodiment of a safety socket of the present invention;

[0035] Fig.12 for Fig.11 An enlarged view of part D;

[0036] Fig.13 An exploded view of another embodiment of the safety socket of the present invention;

[0037] Fig.14 A schematic diagram of an elastic waterproof pad of another embodiment of the safety socket of the present invention;

[0038] Fig.15 Another schematic diagram of an elastic waterproof pad of another embodiment of the safety socket of the present invention;

[0039] Fig.16 A schematic diagram of a cover of another embodiment of a safety socket of the present invention;

[0040] Fig.17 for Fig.16 Enlarged view of part E;

[0041] Fig.18 Another schematic diagram of a cover of another embodiment of a safety socket of the present invention;

[0042] Fig.19 A schematic diagram of an elastic waterproof pad of another embodiment of the safety socket of the present invention;

[0043] Fig. 20 A cross-sectional view of another embodiment of the safety socket of the present invention;

[0044] Fig.21 for Fig. 20 An enlarged view of part F;

[0045] Fig. 22 An exploded view of another embodiment of the safety socket of the present invention;

[0046] Fig.23 A schematic diagram of an elastic waterproof pad and a cover of another embodiment of the safety socket of the present invention;

[0047] Fig.24 for Fig.23 Section view along AA;

[0048] Fig.25 A schematic diagram of an elastic waterproof pad of another embodiment of the safety socket of the present invention.

[0049] Description of Figure Numbers:

[0050] Label name Label name 100 Noodle shell 400 Protective door 110 Jack 500 Socket unit 120 first convex part 510 Unit housing 130 First groove 511 Second through hole 131 External slot 511a Ground hole 132 inner subtrough 512 Butt part 140 Second groove 513 Cavity 141 The third through hole 513a The first sub-chamber 150 The third groove 513b The second sub-chamber 151 Fourth through hole 514 Partition 200 Bottom shell 515 Ground wire wall 300 Elastic waterproof pad 600 Waterproof abutment 310 First through hole 700 First connecting column 320 Fixing holes 800 Second connecting column 330 second convex portion 900 Sealing part 340 First elastic waterproof pad 910 First sub-seal 350 Second elastic waterproof pad 920 Second sub-sealing part

[0051] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] 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 described embodiments 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 without creative work are within the scope of protection of the present invention.

[0053] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as described in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] The socket is prone to cause safety accidents when liquid enters it. In order to avoid safety accidents, an elastic waterproof member is provided at the socket in the prior art to seal the socket to achieve the purpose of waterproofing. However, as the number of plugging and unplugging increases, the waterproof member is prone to damage, resulting in reduced waterproof performance.

[0056] In order to solve the above problems, this patent provides a safety socket, which aims to avoid the reduction of the socket's waterproof performance due to wear of the waterproof parts.

[0057] For ease of understanding, the specific implementation of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0058] See also Figure 1 , Figure 2 , Figure 8 , Fig.13 and Fig. 22, the safety socket includes a face shell 100, a bottom shell 200 and an elastic waterproof pad 300; the face shell 100 is provided with a socket 110, and the elastic waterproof pad 300 is fixed to the face shell 100; the elastic waterproof pad 300 is provided with a first through hole 310, and the first through hole 310 is used for the plug pin to be inserted; a protective door 400 is provided below the elastic waterproof pad 300, and a plane is provided on one side of the protective door 400 that fits the elastic waterproof pad 300, and the plane abuts the elastic waterproof pad 300, and the protective door 400 closes the first through hole 310 when the plug pin is not inserted into the first through hole 310. When the plug pin is plugged in and out, the protective door 400 is in contact with the plug pin, and the protective door 400 is made of a rigid material and is not easy to wear. To put it another way, even if the place in contact with the plug pin is worn, it will not affect the effect of the protective door 400 closing the first through hole 310. In this way, the reduction of the waterproof performance of the socket due to the wear of the waterproof part is avoided. In addition, since the elastic waterproof pad 300 is flexible, when the protective door 400 closes the first through hole 310 of the elastic waterproof pad 300, water cannot or is not easy to pass through between the elastic waterproof pad 300 and the protective door 400, thereby preventing water from entering the interior of the socket. In this embodiment, the elastic waterproof pad 300 can be fixed to the face shell 100 by being attached to the face shell 100, or it can be fixed after being formed by injection molding as described later. It should be noted that the elastic waterproof pad can be non-sheet-shaped. Fig.25 In the implementation method, the plane of the protective door 400 abuts against the lower end of the elastic waterproof pad 300 (for example Fig.25 The middle plane abuts against the rubber ring below the elastic waterproof pad 300).

[0059] It should be noted that there are many ways to fix the elastic waterproof pad 300. This embodiment provides the following implementations. Figure 5 , Figure 6 , Figure 7 , Fig.11 , Fig.12 , Fig.18 and Fig.19 The inner side of the face shell 100 is provided with a first convex portion 120; the elastic waterproof pad 300 is provided with a fixing hole 320, and the first convex portion 120 is embedded in the fixing hole 320. This implementation method can prevent the elastic waterproof pad 300 from deflecting and achieve a fixing effect.

[0060] On the basis of the above implementation, in order to prevent the elastic waterproof pad 300 from falling off, this embodiment provides the following implementation. A locking portion for limiting the elastic waterproof pad 300 is provided at the end of the first convex portion 120 to prevent the elastic waterproof pad 300 from falling off. In this embodiment, the shape of the locking portion is not limited, and it can be a hook-shaped locking portion (hooking the elastic waterproof pad 300) or a sheet-shaped locking portion (the sheet-shaped locking portion is located below the elastic waterproof pad 300, and the sheet-shaped locking portion cannot pass through the fixing hole 320).

[0061] It should be noted that, in order to prevent the elastic waterproof pad 300 from deflecting, this embodiment provides the following implementation method. Figure 6 and Figure 7 The inner side of the housing 100 is provided with a first groove 130, and the elastic waterproof pad 300 is provided in the first groove 130. The elastic waterproof pad 300 is provided in the first groove 130, so that the elastic waterproof pad 300 is limited in the first groove 130 to prevent it from being offset. During production, the user can form the elastic waterproof pad 300 by injection molding into the first groove 130. At the same time, after the injection molding is completed, the elastic waterproof pad 300 does not need to be manually installed in the first groove 130, which is convenient for users to produce and assemble the safety socket.

[0062] On the basis of the above implementation, in order to firmly fix the elastic waterproof pad 300 in the first groove 130, this embodiment provides the following implementation. Figure 5 , Figure 6 and Figure 7 The first groove 130 includes an outer groove 131 and an inner groove 132, and the insertion hole 110 is opened at the groove bottom of the inner groove 132; the elastic waterproof pad 300 is provided with a second convex portion 330, and the second convex portion 330 is embedded in the outer groove 131; the outer groove 131 is formed by extending outward from the edge of the inner groove 132; the second convex portion 330 is located at the edge of the elastic waterproof pad 300. This implementation method enables the elastic waterproof pad 300 to be firmly fixed to the first groove 130.

[0063] Furthermore, in order to prevent the elastic waterproof pad 300 from being gathered toward the middle as a whole when the plug pin is inserted into the first through hole 310, this embodiment provides the following implementation method. Figure 6 and Figure 7 , the outer sub-groove 131 is narrowed at the junction with the inner sub-groove 132. When the plug pin is inserted into the first through hole 310, the elastic waterproof pad 300 tends to gather toward the middle, but since the second protrusion 330 cannot pass through the junction of the outer sub-groove 131 and the inner sub-groove 132, the elastic waterproof pad 300 cannot gather toward the middle, and the elastic waterproof pad 300 can maintain its original position unchanged.

[0064] It should be noted that, in addition to the above-mentioned fixing method, the present embodiment also provides the following implementation method. Figure 2 , Figure 3 and Figure 4 , a socket unit 500 is arranged below the elastic waterproof pad 300, and the socket unit 500 includes a unit housing 510; the unit housing 510 is provided with a second through hole 511, and the second through hole 511 is used for inserting the plug pin; an abutting portion 512 is formed on the unit housing 510, and the abutting portion 512 abuts against the elastic waterproof pad 300. In this implementation, the elastic waterproof pad 300 is fixed to the face shell 100 by the abutting portion 512 abutting against the elastic waterproof pad 300.

[0065] Based on the above implementations, the abutting portion 512 has multiple implementations. This embodiment provides the following two implementations.

[0066] Method 1:

[0067] See also Figure 3 and Figure 4 A cavity 513 is formed on the unit shell 510 , and a second through hole 511 is defined at the bottom of the cavity 513 ; an abutting portion 512 is formed at the end of the side wall of the cavity 513 .

[0068] Based on the above implementation, this embodiment provides the following implementation. Figure 3 and Figure 4 The cavity 513 includes a first sub-cavity 513a and a second sub-cavity 513b, a partition 514 is arranged between the first sub-cavity 513a and the second sub-cavity 513b, and the end of the partition 514 forms an abutment portion 512. This implementation method strengthens the fixing effect of the elastic waterproof pad 300.

[0069] Method 2:

[0070] See also Figure 3 and Figure 4 The second through hole 511 includes a ground wire hole 511 a , a ground wire surrounding wall 515 is formed at the ground wire hole 511 a , and an end of the ground wire surrounding wall 515 forms an abutting portion 512 .

[0071] It should be noted that, in order to further prevent water from entering the interior of the socket, this embodiment provides the following two implementation methods.

[0072] Method 1:

[0073] See also Figure 8 , Fig. 9 and Fig.10The outer side of the housing 100 is provided with a second groove 140, the second groove 140 is located around the jack 110, and the second groove 140 is provided with a waterproof abutment 600; the waterproof abutment 600 abuts against the end face of the plug to prevent liquid from entering the jack 110 through the plug and the housing 100 when the plug pins are inserted into the socket. It should be noted that the second groove 140 is located around the jack 110, and can be located around a single jack 110, or around a two-hole jack 110 (including a neutral jack and a live jack), or around a three-hole jack 110 (including a neutral jack, a live jack, and a ground jack), or around a two-hole jack 110 and a three-hole jack 110.

[0074] Based on the above implementations, there are many implementations for fixing the elastic waterproof pad 300. This embodiment provides the following implementations. Fig. 9 , Fig.10 , Fig.19 , Fig.23 , Fig.24 and Fig.25 The bottom of the second groove 140 is provided with a third through hole 141, and the third through hole 141 is provided with a first connecting column 700; the waterproof abutment 600 is connected to one end of the first connecting column 700 or is integrally formed with the first connecting column 700, and the elastic waterproof pad 300 is connected to the other end of the first connecting column 700 or is integrally formed with the first connecting column 700. This implementation method enables the elastic waterproof pad 300 to be fixed relative to the waterproof abutment 600. In addition, in the implementation method of providing the first groove 130 on the inner side of the face shell 100, the elastic waterproof pad 300, the waterproof abutment 600 and the first connecting column 700 can be formed by injection molding, which is convenient for users to produce and assemble.

[0075] Method 2:

[0076] See also Fig.13 , Fig.14 , Fig.15 , Fig.16 and Fig.17The outer side of the housing 100 is provided with a third groove 150, the jack 110 is located at the bottom of the third groove 150, the elastic waterproof pad 300 includes a first elastic sub-waterproof pad 340 and a second elastic sub-waterproof pad 350, the first elastic sub-waterproof pad 340 is provided in the third groove 150, and the second elastic sub-waterproof pad 350 is provided below the housing 100; the first elastic sub-waterproof pad 340 and the second elastic sub-waterproof pad 350 are provided with a first through hole 310, the protective door 400 is provided below the second elastic sub-waterproof pad 350, and the protective door 400 closes the first through hole 310 of the second elastic sub-waterproof pad 350 when the plug pin is not inserted into the first through hole 310 of the second elastic sub-waterproof pad 350. This implementation method can prevent water from entering the jack 110 from between the first elastic sub-waterproof pad 340 and the side wall of the third groove 150.

[0077] Based on the above implementation, there are many implementations for fixing the second elastic sub-waterproof pad 350. This embodiment provides the following implementation. Fig.15 , Fig.16 and Fig.17 The third groove 150 has a fourth through hole 151 at its bottom, and a second connecting column 800 is provided in the fourth through hole 151; the first elastic sub-waterproof pad 340 is connected to one end of the second connecting column 800 or is integrally formed with the second connecting column 800, and the second elastic sub-waterproof pad 350 is connected to the other end of the second connecting column 800 or is integrally formed with the second connecting column 800. This implementation method allows the second elastic sub-waterproof pad 350 to be fixed relative to the first elastic sub-waterproof pad 340.

[0078] It should be noted that, in order to further prevent water from entering the first through hole 310, this embodiment provides the following implementation method. Figure 5 , a sealing part 900 is provided at the first through hole 310, and the sealing part 900 is integrally formed with the side wall of the first through hole 310; the sealing part 900 is used to close the first through hole 310 when the plug pin is not inserted into the first through hole 310, and is used to wrap the plug pin when the plug pin is inserted into the first through hole 310. This implementation method enables the first through hole 310 to be filled with the sealing part 900 to form a slit, preventing water from entering the inside of the socket from between the plug pin and the sealing part 900 when the plug pin is inserted into the first through hole 310; and preventing water from entering the first through hole 310 when the plug pin is not inserted into the first through hole 310.

[0079] Based on the above implementations, there are many implementations for the sealing portion 900 to wrap the plug pins. This embodiment provides the following implementations. Figure 5 , Fig.14 , Fig.15 , Fig.19 , Fig. 20 and Fig.21The sealing part 900 includes a first sub-sealing part 910 and a second sub-sealing part 920; when the plug pin is inserted into the first through hole 310, the first sub-sealing part 910 and the second sub-sealing part 920 bend downward, and the ends or upper surfaces of the first sub-sealing part 910 and the second sub-sealing part 920 are in close contact with the plug pin. This implementation method allows the sealing part 900 to wrap the plug pin when the plug pin is inserted, and to close the first through hole 310 when the plug pin is pulled out.

[0080] In summary, the safety socket provided by the embodiment of the present application includes a face shell, a bottom shell and an elastic waterproof pad; the face shell is provided with a plug hole, and the elastic waterproof pad is fixed to the face shell; the elastic waterproof pad is provided with a first through hole, and the first through hole is used for inserting the plug pin; a protective door is provided below the elastic waterproof pad, and a plane is provided on one side of the protective door that is in contact with the elastic waterproof pad, and the plane abuts against the elastic waterproof pad, and the protective door closes the first through hole when the plug pin is not inserted into the first through hole. In this way, water is prevented from entering the interior of the socket.

Claims

1. A safety socket, characterized in that: It includes a surface shell, a bottom shell and an elastic waterproof pad; The face shell is provided with a plug hole, and the elastic waterproof pad is fixed to the face shell; the elastic waterproof pad is provided with a first through hole, and the first through hole is used for inserting the plug pin; A protective door is arranged below the elastic waterproof pad, a plane is arranged on one side of the protective door that is in contact with the elastic waterproof pad, the plane abuts against the elastic waterproof pad, and the protective door closes the first through hole when the plug pin is not inserted into the first through hole.

2. The safety socket according to claim 1, characterized in that: The inner side surface of the surface shell is provided with a first convex portion; the elastic waterproof pad is provided with a fixing hole, and the first convex portion is embedded in the fixing hole.

3. The safety socket according to claim 2, characterized in that: A locking portion for limiting the elastic waterproof pad is provided at the end of the first protrusion to prevent the elastic waterproof pad from falling off.

4. The safety socket according to claim 1, characterized in that: The inner side surface of the surface shell is provided with a first groove, and the elastic waterproof pad is arranged in the first groove.

5. The safety socket according to claim 4, characterized in that: The first groove includes an outer groove and an inner groove, and the insertion hole is provided at the groove bottom of the inner groove; the elastic waterproof pad is provided with a second convex portion, and the second convex portion is embedded in the outer groove; The outer sub-groove is formed by extending outward from the edge of the inner sub-groove; and the second protrusion is located at the edge of the elastic waterproof pad.

6. The safety socket according to claim 5, characterized in that: The outer sub-groove is narrowed at a location adjacent to the inner sub-groove.

7. The safety socket according to claim 1, characterized in that: A socket unit is arranged below the elastic waterproof pad, and the socket unit comprises a unit housing; The unit housing is provided with a second through hole, and the second through hole is used for inserting the plug pin; The unit housing is formed with an abutting portion, and the abutting portion abuts against the elastic waterproof pad.

8. The safety socket according to claim 7, characterized in that: A cavity is formed on the unit shell, and the second through hole is provided at the bottom of the cavity; and the end of the side wall of the cavity forms the abutment portion.

9. The safety socket according to claim 8, characterized in that: The cavity includes a first sub-cavity and a second sub-cavity, a partition is provided between the first sub-cavity and the second sub-cavity, and an end of the partition forms the abutting portion.

10. The safety socket according to claim 7, characterized in that: The second through hole comprises a ground wire hole, a ground wire surrounding wall is formed at the ground wire hole, and the end of the ground wire surrounding wall forms the abutting portion.

11. The safety socket according to claim 1, characterized in that: A second groove is provided on the outer side surface of the face shell, and the second groove is located around the socket. The second groove is provided with a waterproof abutment; the waterproof abutment abuts against the end surface of the plug to prevent liquid from entering the socket through the plug and the face shell when the plug pin is inserted into the socket.

12. The safety socket according to claim 11, characterized in that: A third through hole is provided at the bottom of the second groove, and a first connecting column is provided in the third through hole; The waterproof abutment member is connected to one end of the first connecting column or is formed integrally with the first connecting column, and the elastic waterproof pad is connected to the other end of the first connecting column or is formed integrally with the first connecting column.

13. The safety socket according to claim 1, characterized in that: The outer side surface of the face shell is provided with a third groove, and the jack is located at the bottom of the third groove; the elastic waterproof pad comprises a first elastic sub-waterproof pad and a second elastic sub-waterproof pad, the first elastic sub-waterproof pad is provided in the third groove, and the second elastic sub-waterproof pad is provided below the face shell; The first elastic sub-waterproof pad and the second elastic sub-waterproof pad are provided with the first through hole, and the protective door is provided below the second elastic sub-waterproof pad. When the plug pin is not inserted into the first through hole of the second elastic sub-waterproof pad, the protective door closes the first through hole of the second elastic sub-waterproof pad.

14. The safety socket according to claim 13, characterized in that: A fourth through hole is provided at the bottom of the third groove, and a second connecting column is provided in the fourth through hole; The first elastic sub-waterproof pad is connected to one end of the second connecting column or is formed integrally with the second connecting column, and the second elastic sub-waterproof pad is connected to the other end of the second connecting column or is formed integrally with the second connecting column.

15. The safety socket according to claim 1, characterized in that: A sealing portion is provided at the first through hole, and the sealing portion is integrally formed with a side wall of the first through hole; The sealing portion is used to close the first through hole when the plug pin is not inserted into the first through hole, and is used to wrap the plug pin when the plug pin is inserted into the first through hole.

16. The safety socket according to claim 15, characterized in that: The sealing portion comprises a first sub-sealing portion and a second sub-sealing portion; When the plug pin is inserted into the first through hole, the first sub-sealing portion and the second sub-sealing portion are bent downward, and the ends or upper surfaces of the first sub-sealing portion and the second sub-sealing portion are in close contact with the plug pin.

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