DC (direct current) plug with waterproof function

Abstract

The utility model discloses a DC (direct current) plug with a waterproof function, which comprises a cathode sleeve, an insulating support body is sleeved in the cathode sleeve, one end of the cathode sleeve is fixedly connected with the insulating support body through a plugging limiting mechanism, an anode sleeve is plugged in the insulating support body, one end of the anode sleeve is sleeved with a waterproof silicon rubber case, and the other end of the anode sleeve is fixedly connected with the waterproof silicon rubber case. A waterproof silica gel sleeve is arranged between the cathode sleeve and the anode sleeve, a ring-shaped protrusion is arranged outside the waterproof silica gel sleeve, the ring-shaped protrusion is fixedly connected with the inside of the cathode sleeve in a sleeved mode, and a plug rubber handle is arranged outside one end of the cathode sleeve in a sleeved mode. According to the technical scheme of the utility model, a stable sealing effect can be formed during the plugging process of the plug, water and dust are effectively prevented from entering the plug, the problem that a traditional DC plug is easily influenced by a humid environment during the use process is effectively solved, the service life of the product is prolonged, and the safety of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of DC plugs, in particular to a DC plug with a waterproof function. Background Art

[0002] With the wide application of electronic devices, the quality and performance requirements of various power connection devices have also been continuously improved. Among many connection devices, the DC plug has become an indispensable component in various electronic devices due to its stable power supply ability and wide application range. However, during the use of traditional DC plugs, especially in humid or dusty environments, problems such as poor contact, short circuit, and even damage are likely to occur. Due to the relatively simple structure of traditional plugs and the lack of effective waterproof and dustproof designs, the service life and safety cannot be guaranteed. Therefore, to meet the market demand, it is highly practical to provide a DC plug with a waterproof function. Content of the Utility Model

[0003] The purpose of the utility model is to provide a DC plug with a waterproof function to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A DC plug with a waterproof function includes a negative electrode sleeve, an insulating support body is sleeved inside the negative electrode sleeve, and one end of the negative electrode sleeve is fixedly connected to the insulating support body through a plug-in limiting mechanism;

[0005] A positive electrode sleeve is inserted into the insulating support body, a waterproof silica gel sleeve is sleeved at one end of the positive electrode sleeve, a circular protrusion is arranged outside the waterproof silica gel sleeve, the circular protrusion is fixedly sleeved inside the negative electrode sleeve, a plug rubber handle is sleeved outside one end of the negative electrode sleeve, and an insulating ring is sleeved at the other end of the negative electrode sleeve.

[0006] As a preferred solution of the utility model: The limiting mechanism includes an arc-shaped concave part arranged at one end of the negative electrode sleeve, and an arc-shaped groove corresponding to the surface of the insulating support body is engaged and connected with the arc-shaped concave part.

[0007] As a preferred solution of the utility model: When one end of the negative electrode sleeve is sleeved with the insulating support body, the end of one end of the negative electrode sleeve abuts against the annular protrusion at one end of the insulating support body.

[0008] As a preferred solution of the utility model: An arc-shaped groove is further arranged at one end of the insulating support body, the arc-shaped groove is inserted and fixed with an arc-shaped pole piece arranged at one end of the positive electrode sleeve, a round hole is opened on the surface of one end of the arc-shaped pole piece, a plurality of strip-shaped grooves are opened on the surface of the other end of the positive electrode sleeve, and an outward-folded edge is arranged at the end of the other end of the positive electrode sleeve.

[0009] As a preferred embodiment of the present utility model: The opening in the middle of the waterproof silicone sleeve is one of a linear hole, a cross-shaped hole, a triangular hole, a polygonal hole or a circular hole.

[0010] As a preferred embodiment of the present utility model: One end of the insulating ring is provided with an inner groove, and the inner groove is snap-fitted with the inward-opening at the other end of the negative electrode sleeve, and one end of the insulating ring abuts against one end of the waterproof silicone sleeve.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1) By arranging a waterproof silicone sleeve between the negative electrode sleeve and the positive electrode sleeve and sleeving the waterproof silicone sleeve inside the negative electrode sleeve, the present utility model can form a stable sealing effect during the plugging and unplugging process of the plug, effectively preventing the entry of moisture and dust, and effectively solving the problem that traditional DC plugs are easily affected by humid environments during use, thereby improving the service life and safety of the product.

[0013] 2) The insulating support body of the present utility model is limitedly installed with the negative electrode sleeve through the plugging and limiting mechanism, which not only simplifies the assembly process of the plug, but also further enhances the structural stability of the plug. The arc-shaped inner concave part of the plugging and limiting mechanism is snap-fitted with the arc-shaped groove on the insulating support body, making the connection between the negative electrode sleeve and the insulating support body closer, preventing the plug from loosening or falling off during use, and further ensuring its reliability and durability in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present utility model;

[0015] Figure 2 is a sectional schematic diagram of the present utility model;

[0016] Figure 3 is a disassembled schematic diagram of the present utility model;

[0017] Figure 4 is a structural schematic diagram of the positive electrode sleeve of the present utility model;

[0018] Figure 5 is a structural schematic diagram of the waterproof silicone sleeve of the present utility model.

[0019] In the figure: 100, negative electrode sleeve; 110, limiting mechanism; 111, arc-shaped concave part; 112, arc-shaped groove; 120, inwardly retracted opening; 200, insulating support; 210, annular protrusion; 220, arc-shaped groove; 300, positive electrode sleeve; 310, arc-shaped electrode plate; 311, round hole; 320, outwardly folded edge; 330, strip-shaped groove; 400, waterproof silicone sleeve; 410, circular protrusion; 500, plug rubber handle; 600, insulating ring; 610, inner groove. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1

[0022] Please refer to Figures 1-5 , the present invention provides a technical solution: a DC direct current plug with a waterproof function, including a negative electrode sleeve 100. An insulating support 200 is sleeved inside the negative electrode sleeve 100. One end of the negative electrode sleeve 100 is fixedly connected to the insulating support 200 through a plug-in limiting mechanism 110;

[0023] A positive electrode sleeve 300 is inserted into the insulating support 200. A waterproof silicone sleeve 400 is sleeved at one end of the positive electrode sleeve 300. A circular protrusion 410 is provided on the outside of the waterproof silicone sleeve 400. The circular protrusion 410 is fixedly sleeved inside the negative electrode sleeve 100. A plug rubber handle 500 is sleeved on the outside of one end of the negative electrode sleeve 100. An insulating ring 600 is sleeved on the other end of the negative electrode sleeve 100.

[0024] Specifically, an insulating support 200 is provided inside the negative electrode sleeve 100. The insulating support 200 can ensure the insulation effect between the negative electrode and the positive electrode of the plug, preventing current short - circuit. The insulating support 200 and the negative electrode sleeve 100 are fixedly connected through a plug - in limiting mechanism 110, ensuring the stability of the installation of the insulating support 200 and the negative electrode sleeve 100, and avoiding the occurrence of loosening or displacement problems. The positive electrode sleeve 300 is installed inside the insulating support 200, enabling the positive electrode sleeve 300 to remain stable during the connection process. At the same time, there is an insulating gap between the positive electrode sleeve 300 and the negative electrode sleeve 100. A waterproof silicone sleeve 400 is sleeved at one end of the positive electrode sleeve 300. A circular protrusion 410 is designed on the outer part of the waterproof silicone sleeve 400. The circular protrusion 410 can better socket and fix with the inside of the negative electrode sleeve 100, and at the same time increase the friction force when the waterproof silicone sleeve 400 is socketed with the negative electrode sleeve 100, preventing the waterproof silicone sleeve 400 from falling off or moving inside the negative electrode sleeve 100. Thus, an effective sealing structure can be formed inside whether the plug is in use or not, preventing the entry of moisture and dust, and ensuring that the plug can still work normally in humid and dusty environments. The provided plug rubber handle 500 not only provides an additional protective layer but also enables users to obtain a better hand feeling and anti - slip effect when plugging and unplugging the plug. The provided insulating ring 600 further improves the protection performance of the plug, ensuring safety and durability in different usage environments.

[0025] In this embodiment: The limiting mechanism 110 includes an arc - shaped concave part 111 provided at one end of the negative electrode sleeve 100, and an arc - shaped groove 112 corresponding to the surface of the insulating support 200 is engaged with the arc - shaped concave part 111.

[0026] Specifically, when the negative electrode sleeve 100 and the insulating support 200 are plugged in, the arc - shaped concave part 111 and the arc - shaped groove 112 are engaged, which can quickly realize the assembly of the negative electrode sleeve 100 and the insulating support 200, and also prevent the insulating support 200 from loosening or falling off inside the negative electrode sleeve 100 during the use of the plug, ensuring the service life of the plug.

[0027] In this embodiment, when one end of the negative electrode sleeve 100 is socketed with the insulating support 200, the end of one end of the negative electrode sleeve 100 abuts against the annular protrusion 210 at one end of the insulating support 200.

[0028] Specifically, the abutting method of the negative electrode sleeve 100 and one end of the insulating support 200 not only makes the connection between the two closer but also effectively prevents loosening or falling off problems caused by external force or vibration during use, effectively resisting the impact of the external environment on the connector, and ensuring that the plug can work stably.

[0029] In this embodiment, an arc-shaped groove 220 is further provided at one end of the insulating support 200. The arc-shaped groove 220 is inserted and fixed with an arc-shaped pole piece 310 provided at one end of the positive electrode sleeve 300. A round hole 311 is formed on the surface of one end of the arc-shaped pole piece 310. A plurality of strip-shaped grooves 330 are formed on the surface of the other end of the positive electrode sleeve 300. An outer folded edge 320 is provided at the end of the other end of the positive electrode sleeve 300.

[0030] Specifically, the provided arc-shaped groove 220 can be inserted and fixed with the arc-shaped pole piece 310 at one end of the positive electrode sleeve 300, quickly completing the assembly of the positive electrode sleeve 300 and the insulating support 200. There are three strip-shaped grooves 330, and the other end of the positive electrode sleeve 300 is divided into four elastic sheet structures. Moreover, an outer folded edge 320 is provided at the other end of the positive electrode sleeve 300. When the positive electrode sleeve 300 and the insulating support 200 are installed, the other end of the positive electrode sleeve 300 is placed inside the positive electrode sleeve 300. The provided outer folded edge 320 can increase the elastic performance of the positive electrode sleeve 300, preventing the other end of the positive electrode sleeve 300 from curling or being damaged during the use of the plug. At the same time, the provided strip-shaped grooves 330 are also helpful for heat dissipation. The arc length of the arc-shaped pole piece 310 of the positive electrode sleeve 300 is also greater than half of the circumference of the positive electrode sleeve 300, further enhancing the structural strength of the positive electrode sleeve 300. A round hole 311 is provided at one end of the arc-shaped pole piece 310, and the provided round hole 311 can be better welded to the wire.

[0031] In this embodiment, the central opening of the waterproof silicone sleeve 400 is one of a linear hole, a cross-shaped hole, a triangular hole, a polygonal hole or a circular hole.

[0032] Specifically, the design of holes with different shapes enables the waterproof silicone sleeve 400 to adapt to various types of plugs and sockets, providing good compatibility, ensuring a tight sealing effect when the plug is inserted into the socket, preventing moisture from entering the plug through the holes, and thus realizing the waterproof function.

[0033] In this embodiment, an inner groove 610 is provided at one end of the insulating ring 600. The inner groove 610 is snap-fitted with the inwardly tapered opening 120 at the other end of the negative electrode sleeve 100, and one end of the insulating ring 600 abuts against one end of the waterproof silicone sleeve 400.

[0034] Specifically, the snap-fitting connection method between the inner groove 610 and the inwardly tapered opening 120 not only facilitates the assembly of the insulating ring 600 and the negative electrode sleeve 100, but also ensures the firm connection between the insulating ring 600 and the negative electrode sleeve 100, making it not easy to loosen. The insulating ring 600 abuts against one end of the waterproof silicone sleeve 400, which can further enhance the waterproof performance of the entire plug.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A DC plug with a waterproof function, comprising a negative electrode sleeve (100), characterized in that, An insulating support (200) is sleeved inside the negative electrode sleeve (100), and one end of the negative electrode sleeve (100) is fixedly connected to the insulating support (200) through a plug-in limiting mechanism (110); A positive electrode sleeve (300) is inserted into the insulating support (200). A waterproof silica gel sleeve (400) is sleeved at one end of the positive electrode sleeve (300). A circular protrusion (410) is provided on the outside of the waterproof silica gel sleeve (400), and the circular protrusion (410) is fixedly sleeved inside the negative electrode sleeve (100). A plug rubber handle (500) is sleeved on the outside of one end of the negative electrode sleeve (100), and an insulating ring (600) is sleeved at the other end of the negative electrode sleeve (100).

2. The DC DC plug with a waterproof function according to claim 1, wherein: The limiting mechanism (110) includes an arc-shaped concave portion (111) provided at one end of the negative electrode sleeve (100), and an arc-shaped groove (112) is correspondingly provided on the surface of the insulating support (200) and is snap-connected to the arc-shaped concave portion (111).

3. A DC DC plug with a waterproof function according to claim 1, characterized in that: When one end of the negative electrode sleeve (100) is sleeved with the insulating support (200), the end of one end of the negative electrode sleeve (100) abuts against the annular protrusion (210) at one end of the insulating support (200).

4. A DC DC plug with a waterproof function according to claim 1, characterized in that: An arc-shaped groove (220) is further provided at one end of the insulating support (200), and an arc-shaped pole piece (310) provided at one end of the positive electrode sleeve (300) is inserted and fixed in the arc-shaped groove (220). A round hole (311) is opened on the surface of one end of the arc-shaped pole piece (310), and a plurality of strip-shaped grooves (330) are opened on the surface of the other end of the positive electrode sleeve (300). An outwardly folded edge (320) is provided at the end of the other end of the positive electrode sleeve (300).

5. A DC DC plug with a waterproof function according to claim 1, characterized in that: The middle opening of the waterproof silica gel sleeve (400) is one of a linear hole, a cross-shaped hole, a triangular hole, a polygonal hole or a circular hole.

6. The DC DC plug with a waterproof function according to claim 1, characterized in that: An inner groove (610) is provided at one end of the insulating ring (600), and the inner groove (610) is snap-connected to the inwardly retracted opening (120) at the other end of the negative electrode sleeve (100), and one end of the insulating ring (600) abuts against one end of the waterproof silica gel sleeve (400).

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