Waterproof socket

Abstract

The invention discloses a waterproof socket, which comprises a shell provided with jacks, a socket module is arranged in the shell, the socket module comprises a base, the base is provided with a base frame used for installing protective doors, the base frame is provided with a pair of protective doors, elastic reset pieces are arranged between the protective doors and the base frame, and a sealing block is arranged between the protective doors. A rubber coating part is arranged on the inner side of the protective door, and when the protective door is closed, the rubber coating part is attached to the sealing block to form sealing; balancing rods are arranged on the two sides of the protective door respectively, the two ends of each balancing rod extend inwards to form limiting parts respectively, the middle of each balancing rod is hinged to the base frame, a rubber coating sealing layer is arranged at the hinged position, a protruding part is arranged in the middle of the bottom face of the protective door, and a limiting block is arranged on the shell. The outer side of the protective door rotates and tilts around the protruding part and abuts against the limiting block to form limiting. The waterproof socket has the advantages of reasonable structure and capability of effectively improving the waterproof performance and the safety of the socket.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of socket manufacturing, in particular to a waterproof socket. BACKGROUND

[0002] In order to prevent children from inserting plugs or other conductive metal objects into the socket for playing or other reasons, causing short circuit to form fire or directly causing children to be electrocuted, therefore, most of the sockets on the market are provided with protective doors (safety doors). For example, a socket structure disclosed in a patent application with application number CN202323134886.2 and entitled "protective door socket", which comprises a panel, a base and a conductive terminal, further comprises: a bracket installed between the panel and the base; a protective door installed on the bracket; a first surface of the bracket is provided with a guide rib for guiding the protective door to switch between a first position and a second position; the first surface of the bracket is provided with a limiting bone for preventing the protective door from deviating, the limiting bone corresponds to the side surface of the protective door and is attached to the protective door, and the limiting bone is integrally formed with the bracket; the protective door is connected with a reset spring, and the reset spring pushes the protective door to reset from the second position to the first position. The socket structure is provided with a protective door, and the waterproof problem of the socket has been a big problem to be solved. Since the protective door is a movable component, there will be an assembly gap between the protective door and other components. For such a socket with a protective door structure, the waterproof problem is more difficult to solve. In addition, although the existing protective door structure can avoid direct exposure of the socket, it cannot prevent foreign objects from being inserted from one socket, and there is still a safety hazard, so the existing socket structure needs to be further improved. SUMMARY

[0003] The purpose of the present application is to overcome the above-mentioned shortcomings and disclose a waterproof socket with reasonable structure, which can effectively improve the waterproof performance and the safety of the socket.

[0004] The technical scheme of the present application is as follows: A waterproof socket, comprising an outer shell provided with a socket hole, a socket module is arranged in the outer shell, the socket module comprises a base, a base frame for installing a protective door is arranged on the base, a pair of protective doors are arranged on the base frame, an elastic reset member is arranged between the protective door and the base frame, a sealing block is arranged between the protective doors, a rubber-coated part is arranged on the inner side of the protective door, and the rubber-coated part is attached to the sealing block to form a seal when the protective door is closed; balance bars are arranged on both sides of the protective door, the balance bars are respectively extended inward at both ends to form limiting parts, the middle part of the balance bar is hingedly connected with the base frame, and a rubber-coated sealing layer is arranged at the hinge connection; a protruding part is arranged on the middle part of the bottom surface of the protective door, and a limiting block is arranged on the outer shell, when an object is inserted into only one socket hole, the outer side of the protective door is rotated and raised around the protruding part, and is limited by the limiting block.

[0005] Further optimization of the technical solutions of the present application is: As an improvement, the base frame is provided with a signal control switch corresponding to the socket position, the signal control switch is connected to the conductive path, and a sealing jack assembly is arranged between the socket and the signal control switch. The sealing jack assembly separates the internal pin from the peripheral conductive path, which can further improve the waterproof effect.

[0006] As an improvement, the sealing jack assembly is arranged on the center of the jack, the sealing member and the reset spring, the inner end of the jack abuts against the socket, the outer end of the jack abuts against the inner surface of the sealing member, the outer surface of the sealing member abuts against the signal control switch, and the sealing member is fixed on the base; the jack is provided with a convex ring, and the reset spring is arranged between the base and the convex ring. When the plug is inserted into the pin, the socket is extruded to expand outward, and the linkage jack moves outward, thereby opening the signal control switch to form an electric circuit for the conductive path, and realizing power-on.

[0007] As an improvement, the base frame and the base are provided with a sealing gasket assembly, the sealing gasket assembly is composed of several layers of sealing gaskets, the several layers of sealing gaskets at least include two different materials, and the sealing gasket assembly is provided with a through hole opposite to the jack position. The sealing gasket assembly composed of sealing gaskets of different materials utilizes the physical properties of different materials (some materials are wear-resistant but have poor elasticity, and some materials have good elasticity but are not wear-resistant), to improve the overall sealing performance and durability of the sealing gasket assembly.

[0008] As an improvement, in the sealing gasket assembly, a valve capable of automatic closure is arranged on the through hole position of the sealing gasket closest to the jack. The valve is arranged to keep the through hole of the sealing gasket assembly closed when the plug is not inserted, which can further improve the waterproof performance.

[0009] As an improvement, the base frame is provided with a lubricating oil storage tank below the protective door. The lubricating oil in the lubricating oil storage tank lubricates the protective door, ensuring the smoothness of the movement of the protective door.

[0010] As an improvement, the protective door is provided with an assembly column, and the inner end of the elastic reset member is sleeved outside the assembly column.

[0011] As an improvement, the socket module is equipped with a humidity sensor and a heater. The humidity sensor and heater are connected by a signal control connection, and a thermostat is connected in series with the heater to prevent overheating. The humidity sensor inside the socket module controls the heater to turn on or off. The thermostat is connected in series with the heater; when the heater exceeds the set temperature, the thermostat activates to protect the module. The humidity sensor detects the humidity value within the module; when the detected value exceeds the set value, the heater is activated to heat the module. By increasing the temperature, harmful water evaporates faster and is discharged to the outside, improving electrical insulation strength.

[0012] As an improvement, the socket module is also equipped with a moisture indicator box, which contains a discoloring agent when exposed to moisture.

[0013] The advantages of this invention compared to the prior art are: This invention discloses a waterproof socket with a reasonable structure. It utilizes a sealing block between protective doors and an inner rubber-coated portion on the protective door. The seal is formed by the adhesion of the rubber-coated portion to the sealing block, solving the problem of water leakage caused by assembly gaps between the protective door and other components, thus improving the socket's waterproof performance. Furthermore, a balance rod is cleverly incorporated, utilizing the lever principle. When the plug is inserted normally, the balance rod remains balanced, and the limiting part on the balance rod prevents the protective door from excessively tilting, allowing the protective door to function normally. However, when an object is inserted into one of the sockets, the outer side of the protective door rotates and tilts around the protrusion, abutting against the limiting block to form a limit. At this point, the protective door is blocked and cannot move, thus preventing the object from being inserted and effectively improving the socket's safety. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention; Figure 2 This is a three-dimensional structural diagram of Embodiment 1 of the present invention after removing the outer shell cover; Figure 3 This is a cross-sectional view of Embodiment 1 of the present invention; Figure 4 yes Figure 3 Enlarged view of section A in the middle; Figure 5 yes Figure 2 3D structural diagram of the socket module; Figure 6 yes Figure 5 Enlarged view of section B in the middle; Figure 7 yes Figure 2 A schematic diagram of the lubricating oil storage tank on the middle socket module; Figure 8 This is a schematic diagram of the structure of the shell in Embodiment 1 of the present invention; Figure 9 This is a three-dimensional structural diagram of Embodiment 1 of the present invention with the outer shell removed; Figure 10 yes Figure 9 3D structural diagram of the central sealing top rod assembly; Figure 11 This is a three-dimensional structural diagram of the sealing gasket assembly according to Embodiment 1 of the present invention; Figure 12 This is a three-dimensional structural diagram of Embodiment 1 of the present invention after removing the outer shell and base; Figure 13 This is a three-dimensional structural diagram of Embodiment 2 of the present invention; Figure 14 This is a three-dimensional structural diagram of the socket module according to Embodiment 2 of the present invention; Figure 15 This is a schematic diagram of the structure of the lubricating oil storage tank on the socket module according to Embodiment 2 of the present invention; Figure 16 This is a schematic diagram of the shell structure of Embodiment 2 of the present invention.

[0015] The names of the reference numerals in the accompanying drawings of this invention are: 1. Outer shell, 1a. Insertion hole, 1b. Limiting block, 11. Top cover, 12. Base, 2. Base frame, 21. Lubricating oil storage tank, 21a. Protective door, 3. Rubber-coated part, 3a. Protrusion, 3b. Assembly column, 31. Elastic reset component, 4. Sealing block, 5. Balance bar, 6. Rubber-coated sealing layer, 6a. Limiting part, 61. Sealing top rod assembly, 7. Signal control switch, 7a. Top rod, 71. Convex ring, 71a. Sealing component, 72. Reset spring, 73. Sealing gasket assembly, 8. Sealing gasket, 81. Valve, 81a. Humidity sensor, 91. Heater, 92. Temperature controller, 93. Moisture indicator box, 94. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings: The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0017] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0018] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0019] like Figures 1 to 12 As shown in Embodiment 1, this embodiment is a two-hole waterproof socket, including a housing 1 with a socket 1a, a socket module inside the housing 1, and a base 2. The base 2 has a frame 21 for mounting protective doors 3, and a pair of protective doors 3 are mounted on the frame 21. An elastic reset member 4 is provided between the protective doors 3 and the frame 21, and a sealing block 5 is provided between the protective doors 3. The inner side of each protective door 3 has a rubber-coated portion 3a. When the protective door 3 is closed, the rubber-coated portion 3a... The adhesive part 3a is attached to the sealing block 5 to form a seal; the protective door 3 is provided with a balance bar 6 on both sides, and the two ends of the balance bar 6 extend inward to form a limiting part 61. The middle part of the balance bar 6 is hinged to the base frame 21, and an adhesive sealing layer 6a is provided at the hinge. The bottom surface of the protective door 3 is provided with a protrusion 3b in the middle. The outer shell 1 is provided with a limiting block 1b. When an object is inserted into only one insertion hole 1a, the outer side of the protective door 3 rotates and tilts up around the protrusion 3b and abuts against the limiting block 1b to form a limit.

[0020] The outer casing 1 consists of a top cover 11 and a base 12.

[0021] The waterproof socket of this invention, through the setting of the sealing block 5 (generally made of rubber material) and the rubber-coated part 3a on the protective door 3, utilizes the sealing block 5 to form a seal when the protective door 3 is closed, thus solving the problem of water leakage caused by the assembly gap between the protective door and other components, and improving the waterproof performance of the socket. The rubber-coated sealing layer 6a at the hinge of the balance rod 6 ensures the sealing of the hinge. Furthermore, the rubber-coated sealing layer 6a is located between the two protective doors 3; if water accidentally enters the protective door chamber, it can isolate the two protective door chambers, improving the electrical isolation strength between them.

[0022] A signal control switch 7a is provided on the base frame 21 at the corresponding position of the plug sleeve. The signal control switch 7a is connected to the conductive path. A sealing top rod assembly 7 is provided between the plug sleeve and the signal control switch 7a.

[0023] The sealing rod assembly 7 comprises a rod 71, a seal 72, and a return spring 73, all located at the center. The inner end of the rod 71 abuts against the insert, the outer end of the rod 71 abuts against the inner surface of the seal 72, and the outer surface of the seal 72 abuts against the signal control switch 7a. The seal 72 is fixed to the base 2. A protruding ring 71a is provided on the rod 71, and the return spring 73 is located between the base 2 and the protruding ring 71a.

[0024] The waterproof socket of this invention has its prongs located inside the base frame 21, while the control part constituting the conductive path is located outside the base frame 21. The base frame 21 and the sealing rod assembly 7 isolate the prongs and control part. The prongs being located inside the relatively enclosed base frame 21 effectively improves waterproofing. Power-on principle: When the plug is inserted into the prongs, the rod 71 moves outward. The deformation of the sealing element 72 activates the signal control switch 7a, providing a conduction signal. The control terminal connects to the main circuit, thus powering on. When the plug is removed, the rod 71 returns to its original position under the combined elastic force of the return spring 73 and the sealing element 72 (the elastic force generated by the deformation of the material itself).

[0025] A sealing gasket assembly 8 is provided between the base frame 21 and the base 2. The sealing gasket assembly 8 is composed of several layers of sealing gaskets 81, and the several layers of sealing gaskets 81 include at least two different materials. A through hole is provided on the sealing gasket assembly 8 opposite the insertion hole 1a.

[0026] In the sealing gasket assembly 8, a valve 81a that can automatically close is provided on the sealing gasket 81 closest to the insertion hole 1a at the through hole position.

[0027] The sealing gasket assembly 8 is composed of two sealing gaskets 81 made of different materials stacked together. In this embodiment, it includes two sealing gaskets 81 of different materials, which are stacked alternately. By using a combination of materials with different elasticity and shrinkage, the sealing performance of the sealing gasket assembly 8 can be improved. The valve 81a on the uppermost sealing gasket 81 keeps the through holes on the sealing gasket assembly 8 closed when the plug is not inserted, which can further improve the waterproof performance.

[0028] A lubricating oil storage tank 21a is provided on the base frame 21 below the protective door 3. The lubricating oil storage tank 21a stores lubricating oil, which is used to lubricate the protective door 3 and ensure the smooth movement of the protective door 3.

[0029] The protective door 3 is provided with an assembly column 31, and the inner end of the elastic reset member 4 is sleeved on the assembly column 31.

[0030] The socket module is equipped with a humidity sensor 91 and a heater 92, which are connected by a signal control connection. A thermostat 93 is connected in series with the heater 92 to prevent it from overheating. The humidity sensor 91 detects the humidity level inside the socket. When the detected value exceeds a set value, the heater 92 is activated to reduce the humidity. The thermostat 93 monitors the temperature of the heater to prevent it from overheating and affecting its service life.

[0031] The socket module is also equipped with a moisture indicator box 94, which contains a moisture-sensitive agent. In this embodiment, the agent is a mixture of phenolphthalein and sodium carbonate; upon exposure to moisture, the agent turns red to alert the user that the socket is damp.

[0032] Working principle: The waterproof socket of the present invention has a balance bar 6 on both sides of the protective door 3. The two ends of the balance bar 6 extend inward to form a limiting part 61. When the plug is inserted normally, the balance bar 6 remains balanced, and the protective doors 3 on both sides move outward at the same time. The outer end of the protective door 3 enters below the limiting part 61. Since the balance bar 6 is in a balanced state at this time, the limiting part 61 can prevent the outer end of the protective door 3 from tilting up excessively, and the protective door 3 works normally (same as the protective door 3 of the existing socket). When an object is inserted into one of the sockets, the outer side of the protective door 3 rotates and tilts up around the protrusion 3b as the object is inserted. Since no object is inserted on the other side at this time, the protective door 3 on the other side remains stationary. As the protective door 3 on that side tilts up, the balance bar 6 rotates around the hinge, and the position of the limiting part 61 moves upward but cannot prevent the protective door 3 from tilting up excessively. As the protective door 3 tilts up excessively, the protective door 3 abuts against the limiting block 1b to form a limit. At this time, the protective door 3 is blocked and cannot move, thereby achieving the purpose of preventing the insertion of objects and effectively improving the safety of the socket.

[0033] like Figures 13 to 16 As shown in Embodiment 2, this embodiment is a three-hole waterproof socket, the structure of which is similar to that of Embodiment 1. The protective door 3 is respectively set at the corresponding live wire and neutral wire socket 1a positions, and a balance bar 6 is respectively set on both sides of the protective door 3. The working principle is the same as that of Embodiment 1, and will not be described in detail here.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A waterproof socket, comprising a housing (1) having a socket (1a), wherein a socket module is disposed within the housing (1), the socket module comprising a base (2), a base frame (21) for installing protective doors (3) is disposed on the base (2), a pair of protective doors (3) are disposed on the base frame (21), and an elastic reset member (4) is disposed between the protective doors (3) and the base frame (21), characterized in that: A sealing block (5) is provided between the protective doors (3). A rubber-coated part (3a) is provided on the inner side of the protective door (3). When the protective door (3) is closed, the rubber-coated part (3a) and the sealing block (5) are in contact to form a seal. A balance bar (6) is provided on both sides of the protective door (3). The two ends of the balance bar (6) extend inward to form a limiting part (61). The middle part of the balance bar (6) is hinged to the base frame (21), and a rubber-coated sealing layer (6a) is provided at the hinge. A protrusion (3b) is provided in the middle of the bottom surface of the protective door (3). A limiting block (1b) is provided on the outer shell (1). When an object is inserted into only one insertion hole (1a), the outer side of the protective door (3) rotates and tilts around the protrusion (3b) and abuts against the limiting block (1b) to form a limit.

2. The waterproof socket according to claim 1, characterized in that: A signal control switch (7a) is provided on the base frame (21) at the corresponding position of the plug sleeve. The signal control switch (7a) is connected to the conductive path. A sealing top rod assembly (7) is provided between the plug sleeve and the signal control switch (7a).

3. The waterproof socket according to claim 2, characterized in that: The sealing rod assembly (7) consists of a centrally located rod (71), a seal (72), and a return spring (73). The inner end of the rod (71) abuts against the insert, the outer end of the rod (71) abuts against the inner surface of the seal (72), and the outer surface of the seal (72) abuts against the signal control switch (7a). The seal (72) is fixed to the base (2). A convex ring (71a) is provided on the rod (71), and the return spring (73) is located between the base (2) and the convex ring (71a).

4. The waterproof socket according to claim 3, characterized in that: A sealing gasket assembly (8) is provided between the base frame (21) and the base (2). The sealing gasket assembly (8) is composed of several layers of sealing gaskets (81). The several layers of sealing gaskets (81) include at least two different materials. A through hole is provided on the sealing gasket assembly (8) opposite the insertion hole (1a).

5. The waterproof socket according to claim 4, characterized in that: In the sealing gasket assembly (8), a valve (81a) that can automatically close is provided on the sealing gasket (81) closest to the insertion hole (1a) at the through hole position.

6. The waterproof socket according to claim 5, characterized in that: A lubricating oil storage tank (21a) is provided on the base frame (21) below the protective door (3).

7. The waterproof socket according to claim 6, characterized in that: The protective door (3) is provided with an assembly column (31), and the inner end of the elastic reset member (4) is sleeved on the assembly column (31).

8. The waterproof socket according to claim 7, characterized in that: The socket module is equipped with a humidity sensor (91) and a heater (92). The humidity sensor (91) and the heater (92) are connected by signal control. A thermostat (93) is connected in series with the heater (92) to prevent the heater (92) from overheating.

9. The waterproof socket according to claim 8, characterized in that: The socket module is also provided with a moisture indicator box (94), and the moisture indicator box (94) contains a discoloring agent when exposed to moisture.

Images