Waterproof DC male joint

Abstract

The utility model discloses a waterproof DC male joint, which relates to the field of DC male joints and comprises a plastic shell, a terminal is arranged at the front end of the plastic shell, a wire is arranged at the rear end of the plastic shell, an insulating terminal shell located at the outer end of the terminal is arranged at the front end of the plastic shell, a blocking assembly is arranged at the bottom of the plastic shell and comprises an extension rod, and the extension rod is connected with the wire. And a cover plate is fixedly arranged at the front end of the extension rod. According to the utility model, through the arrangement of the blocking assembly, in an idle state, the extension rod is driven through the elastic force of the torsion spring so as to drive the cover sheet and the sealing gasket which are located at the front side of the insulation terminal shell, so that the sealing gasket on the cover sheet is blocked at the front end of the insulation terminal shell, and water is prevented from entering the insulation terminal shell in the idle process. Even if the DC male head is idle and not used, the DC male head can be waterproof, and the waterproof effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of DC male connectors, in particular to a waterproof DC male connector. Background Technique

[0002] A DC connector usually refers to a DC power connector, which is a power interface used to connect electronic devices. It has a special design to provide power for electronic devices.

[0003] This kind of interface is widely used in various electronic devices, such as laptop computers, mobile phone chargers and various adapters. Among them, the male connector refers to a protruding DC connector with a needle-shaped appearance.

[0004] When using a DC male connector to supply power to an electronic device, it is necessary to avoid water contamination at the connection between the male connector and the electronic device, which may cause electric leakage or electric shock accidents. Therefore, many DC male connectors in the prior art have a waterproof function, such as a waterproof connector male connector with the publication number of CN209298452U.

[0005] The waterproofing in the prior art generally sets structures such as sealing rings on the male connector to seal the interface between the male connector and the electronic device during the power supply process. However, it is impossible to prevent water from entering the DC male connector during the idle process. Therefore, the waterproof effect needs to be improved. Content of the Utility Model

[0006] In view of the deficiencies of the prior art, the utility model provides a waterproof DC male connector. By setting a blocking component, in the idle state, the sealing pad on the cover plate blocks the front end of the insulating terminal housing, avoiding moisture from entering the inside of the insulating terminal housing during the idle process. In this way, even when the DC male connector is idle and not in use, it can be waterproof, improving the waterproof effect and effectively solving the problems in the background technique.

[0007] To achieve the above object, the technical solution adopted by the utility model is: a waterproof DC male connector, including a plastic housing, a terminal is provided at the front end of the plastic housing, a wire is provided at the rear end of the plastic housing, an insulating terminal housing is provided at the front end of the plastic housing outside the terminal, and a blocking component is provided at the bottom of the plastic housing;

[0008] The blocking component includes an extension rod, a cover plate is fixedly provided at the front end of the extension rod, and a sealing pad in contact with the front end of the insulating terminal housing is fixedly provided on the side of the cover plate facing the insulating terminal housing;

[0009] Fixed shafts are fixedly provided on both sides of the rear end of the extension rod, and a fixing plate is provided outside the fixed shafts through a rotating shaft, and the fixing plate is fixedly provided at the bottom end of the plastic housing.

[0010] Further, one end of the fixed shaft away from the extension rod penetrates through the fixed plate and is fixedly provided with an end plate. A torsion spring is arranged between the end plate and the corresponding side of the fixed plate. The torsion spring is arranged at the outer end of the fixed shaft, and both ends of the torsion spring are fixedly connected to the fixed plate and the end plate respectively.

[0011] Further, a waterproof ring for sealing is fixedly provided at the outer end of the insulating terminal housing. The waterproof ring is located at the connection between the plastic housing and the insulating terminal housing. A finger ring is fixedly provided at the top of the plastic housing. Inserting a finger into the inner part of the finger ring can facilitate the control of the DC male head.

[0012] Further, the terminal includes a conductive terminal housing fixedly provided at the front end of the plastic housing. The front end of the conductive terminal housing is embedded in the inner wall of the insulating terminal housing. A terminal inner ring is fixedly provided on the inner wall of the conductive terminal housing;

[0013] A terminal copper bar is arranged inside the conductive terminal housing. The terminal copper bar is fixedly provided at the front end of the plastic housing. The two wire cores of the wire are respectively connected to the terminal copper bar and the conductive terminal housing.

[0014] Further, a ventilation assembly is provided at the top of the plastic housing. The ventilation assembly includes a fixed ring fixedly provided at the top of the plastic housing. An elastic rubber bladder is fixedly provided at the top of the fixed ring. The air flow is controlled by squeezing the rubber bladder.

[0015] Further, an intake pipe with a one-way valve is fixedly provided on the inner wall of the fixed ring. Air is inhaled into the fixed ring through the intake pipe. An exhaust pipe with a one-way valve is arranged inside the fixed ring. One end of the exhaust pipe extends into the insulating terminal housing, and the exhaust pipe can introduce air into the insulating terminal housing.

[0016] Compared with the prior art, the present utility model provides a waterproof DC male head, which has the following beneficial effects:

[0017] 1. By setting the blocking assembly, in the idle state, the extension rod is driven by the elastic force of the torsion spring, and then the cover plate and the sealing gasket located in front of the insulating terminal housing are driven, so that the sealing gasket on the cover plate seals the front end of the insulating terminal housing, avoiding moisture from entering the inside of the insulating terminal housing during the idle process. In this way, even when the DC male head is not in use, it can be waterproof, improving the waterproof effect.

[0018] 2. By repeatedly pressing the rubber bladder, air can be squeezed, and the air is blown into the insulating terminal housing through the exhaust pipe. If the terminal is damp, the flowing air can be used to dry the wires, terminal copper bar, and conductive terminal housing inside the insulating terminal housing, avoiding affecting the use of the DC male head due to the dampness of the terminal. Description of the Drawings

[0019] Figure 1 This is the front view structure diagram of the present utility model;

[0020] Figure 2 This is the rear view structure diagram of the present utility model;

[0021] Figure 3 This is the side view cross-sectional view of the present utility model;

[0022] Figure 4 This is the Figure 3 enlarged view of part A of the present utility model;

[0023] Figure 5 This is the structure diagram of the blocking component of the present utility model;

[0024] Figure 6 This is the cross-sectional view of the fixing plate of the present utility model.

[0025] In the figure: 1, plastic housing; 2, insulating terminal housing; 3, waterproof ring; 4, finger ring; 5, ventilation component; 501, fixing ring; 502, rubber bladder; 503, intake pipe; 504, exhaust pipe; 6, blocking component; 601, cover plate; 602, sealing gasket; 603, extension rod; 604, fixing plate; 605, end plate; 606, torsion spring; 607, fixed shaft; 7, electric wire; 8, terminal copper bar; 9, conductive terminal housing; 10, terminal inner ring. Specific embodiments

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the following will further elaborate on the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0027] As Figures 1-6 shown, the present utility model provides a waterproof DC male connector, including a plastic housing 1, a terminal is provided at the front end of the plastic housing 1, an electric wire 7 is provided at the rear end of the plastic housing 1, an insulating terminal housing 2 located at the outer end of the terminal is provided at the front end of the plastic housing 1, and a blocking component 6 is provided at the bottom of the plastic housing 1;

[0028] The blocking component 6 includes an extension rod 603, a cover plate 601 is fixedly provided at the front end of the extension rod 603, and a sealing gasket 602 in contact with the front end of the insulating terminal housing 2 is fixedly provided on the side of the cover plate 601 facing the insulating terminal housing 2;

[0029] Both sides of the rear end of the extension rod 603 are fixedly provided with fixed shafts 607. The outer ends of the fixed shafts 607 are provided with fixing plates 604 through rotating shafts, and the fixing plates 604 are fixedly arranged at the bottom end of the plastic housing 1.

[0030] One end of the fixed shaft 607 away from the extension rod 603 penetrates through the fixing plate 604 and is fixedly provided with an end plate 605. A torsion spring 606 is arranged between the end plate 605 and the corresponding fixing plate 604 on one side. The torsion spring 606 is arranged at the outer end of the fixed shaft 607, and both ends of the torsion spring 606 are fixedly connected to the fixing plate 604 and the end plate 605 respectively.

[0031] In the idle state, the torsion spring 606 is in a slightly tightened state. The elastic force of the torsion spring 606 drives the end plate 605 and the fixed shaft 607, and then drives the extension rod 603 through the fixed shaft 607, so that the cover plate 601 is maintained at the front end of the insulating terminal housing 2. The sealing gasket 602 on the cover plate 601 seals the front end of the insulating terminal housing 2, preventing moisture from entering the inside of the insulating terminal housing 2 during the idle process. In this way, even when the DC male head is idle and not in use, it can be waterproof, improving the waterproof effect.

[0032] In the use state, when the extension rod 603 is rotated downward, it can drive the fixed shaft 607 to rotate and further tighten the torsion spring 606. After the extension rod 603 rotates, the cover plate 601 and the sealing gasket 602 at its front end will move accordingly and move away from the front end of the insulating terminal housing 2. Then the entire insulating terminal housing 2 can be inserted into the jack of the electronic device for use.

[0033] To improve the waterproof effect, as Figure 1 、 3 shown, a waterproof ring 3 for sealing is fixedly arranged at the outer end of the insulating terminal housing 2. The waterproof ring 3 is located at the connection between the plastic housing 1 and the insulating terminal housing 2. A finger ring 4 is fixedly arranged at the top end of the plastic housing 1. Inserting the finger into the inside of the finger ring 4 can facilitate the control of the DC male head.

[0034] The terminal includes a conductive terminal housing 9 fixedly arranged at the front end of the plastic housing 1. The front end of the conductive terminal housing 9 is embedded in the inner wall of the insulating terminal housing 2, and a terminal inner ring 10 is fixedly arranged on the inner wall of the conductive terminal housing 9.

[0035] A terminal copper bar 8 is arranged inside the conductive terminal housing 9. The terminal copper bar 8 is fixedly arranged at the front end of the plastic housing 1. The two wire cores of the wire 7 are respectively connected to the terminal copper bar 8 and the conductive terminal housing 9.

[0036] The insulating terminal housing 2 is arranged at the front end of the plastic housing 1, and a waterproof ring 3 for sealing is arranged at the connection between the two, which can effectively prevent water from entering at the joint of the two, thus improving the waterproof effect. Inside the insulating terminal housing 2, a terminal copper bar 8, a conductive terminal housing 9 and a terminal inner ring 10 are arranged. Among them, the terminal copper bar 8 and the conductive terminal housing 9 are made of copper, and the terminal inner ring 10 is made of phosphor bronze. The two wire cores of the wire 7 are respectively connected to the terminal copper bar 8 and the conductive terminal housing 9, thus playing a role in conducting current so that the DC male head can supply power to electronic devices during use.

[0037] Even if the inside of the insulating terminal housing 2 gets damp, it can be quickly dried. As Figures 1-4 shown, an air vent assembly 5 is provided at the top of the plastic housing 1. The air vent assembly 5 includes a fixing ring 501 fixedly arranged at the top of the plastic housing 1. An elastic rubber bladder 502 is fixedly arranged at the top of the fixing ring 501, and the air flow is controlled by squeezing the rubber bladder 502.

[0038] A suction pipe 503 with a one-way valve is fixedly arranged on the inner wall of the fixing ring 501. Air is sucked into the fixing ring 501 through the suction pipe 503. An exhaust pipe 504 with a one-way valve is arranged inside the fixing ring 501. One end of the exhaust pipe 504 extends into the insulating terminal housing 2, and the exhaust pipe 504 can conduct air into the insulating terminal housing 2.

[0039] By pressing the elastic rubber bladder 502, the air inside the rubber bladder 502 can be squeezed, and the air inside it is blown into the insulating terminal housing 2 through the exhaust pipe 504. After releasing the rubber bladder 502, the rubber bladder 502 rebounds under the action of elasticity and sucks the external air into the fixing ring 501 and the rubber bladder 502 through the suction pipe 503. Repeatedly pressing like this can continuously blow air into the insulating terminal housing 2. If the terminal gets damp, the flowing air can be used to dry the wire 7, the terminal copper bar 8 and the conductive terminal housing 9 inside the insulating terminal housing 2, avoiding affecting the use of the DC male head due to the damp terminal.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A waterproof DC male plug, comprising a plastic housing (1), a terminal being provided at the front end of the plastic housing (1), a wire (7) being provided at the rear end of the plastic housing (1), and an insulating terminal housing (2) being provided at the outer end of the terminal at the front end of the plastic housing (1), characterized in that: A blocking component (6) is provided at the bottom of the plastic shell (1); The blocking assembly (6) comprises an extension rod (603), a cover sheet (601) being fixedly provided at the front end of the extension rod (603), and a sealing gasket (602) being fixedly provided on a side of the cover sheet (601) facing the insulating terminal housing (2) and in contact with the front end of the insulating terminal housing (2); Fixed shafts (607) are fixedly arranged on both sides of the rear end of the extension rod (603), and a fixed plate (604) is arranged on the outer end of the fixed shaft (607) via a rotating shaft, and the fixed plate (604) is fixedly arranged on the bottom end of the plastic shell (1).

2. The waterproof DC male connector according to claim 1, characterized in that: One end of the fixed shaft (607) away from the extension rod (603) passes through the fixed plate (604) and is fixedly provided with an end plate (605), and a torsion spring (606) is provided between the end plate (605) and the fixed plate (604) on the corresponding side.

3. The waterproof DC male connector according to claim 1, characterized in that: A waterproof ring (3) having a sealing function is fixedly provided at the outer end of the insulating terminal housing (2); the waterproof ring (3) is located at the connection between the plastic housing (1) and the insulating terminal housing (2); and a finger ring (4) is fixedly provided at the top of the plastic housing (1).

4. The waterproof DC male connector according to claim 1, characterized in that: The terminal comprises a conductive terminal housing (9) fixedly arranged at the front end of the plastic housing (1); the front end of the conductive terminal housing (9) is embedded in the inner wall of the insulating terminal housing (2); and a terminal inner ring (10) is fixedly arranged on the inner wall of the conductive terminal housing (9); A terminal copper rod (8) is provided inside the conductive terminal housing (9), and the terminal copper rod (8) is fixed to the front end of the plastic housing (1). The two wire cores of the electric wire (7) are respectively connected to the terminal copper rod (8) and the conductive terminal housing (9).

5. The waterproof DC male connector according to claim 1, characterized in that: A ventilation assembly (5) is provided at the top of the plastic shell (1), and the ventilation assembly (5) comprises a fixing ring (501) fixed at the top of the plastic shell (1), and an elastic rubber bag (502) is fixed at the top of the fixing ring (501).

6. The waterproof DC male connector according to claim 5, characterized in that: An air inlet pipe (503) with a one-way valve is fixedly provided on the inner wall of the fixing ring (501), an exhaust pipe (504) with a one-way valve is provided inside the fixing ring (501), and one end of the exhaust pipe (504) extends to the inside of the insulating terminal housing (2).

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