Waterproof connector

Abstract

The utility model discloses a waterproof connector comprising a male head and a female head, the male head comprises a first housing and a first contact head, the outer side of the first housing is provided with a first thread, the first contact head extends to form a contact part, the outer side of the contact part is sleeved with a first sealing ring, the contact part is provided with a plurality of first through holes, and the first through holes are communicated with the first thread. The female head comprises a second shell and a second contact head, the second shell is in sliding contact with the second contact head, the inner wall of the second shell is provided with a second thread, the second contact head is provided with a contact groove, the groove bottom of the contact groove is provided with a second through hole, and a second contact pin is installed in the second through hole; a second sealing ring is arranged at the bottom of the contact groove, the contact part is inserted into the contact groove in a sliding mode, the first contact pin is connected with the second contact pin, and the first thread is connected with the second thread in a matched mode. According to the waterproof connector provided by the utility model, the first shell is connected with the second shell, so that the firmness of connecting the male head with the female head is improved.

Description

Technical Field

[0001] The utility model relates to the field of connector structures, in particular to a waterproof connector. Background Art

[0002] A connector is a structure that connects lines or lines to devices. Its function is to bridge the gap between blocked or isolated circuits in a circuit, so that current can flow and the circuit can achieve its intended function. The form and structure of connectors are ever-changing. There are various forms of connectors depending on the application object, frequency, power, application environment, etc.

[0003] The existing waterproof connectors are divided into male and female heads. The male head is plugged into the female head, and the contact pin of the male head is plugged into the contact pin of the female head to conduct the circuit. The male head uses the friction force of contact with the female head to fix the male head on the female head. By adding a sealing ring between the male head and the female head, the sealing ring blocks the moisture outside the gap to prevent moisture from penetrating the contact pin.

[0004] When the above connector is installed outdoors in windy and rainy weather, the male and female plug-in connection method is prone to loosening due to strong winds, causing the sealing ring to fail, and rainwater can easily penetrate into the connector, causing the connector to short-circuit. Utility Model Content

[0005] The utility model aims to provide a waterproof connector, which improves the firmness of the connection between the male head and the female head by connecting the first shell with the second shell.

[0006] The technical solution adopted by a waterproof connector disclosed in the utility model is:

[0007] The invention comprises a male head and a female head, wherein the male head comprises a first shell and a first contact head, the first shell is sleeved on the outside of the first contact head, a first thread is provided on the outside of the first shell, a contact portion is extended on the first contact head, a first sealing ring is sleeved on the outside of the contact portion, the first sealing ring contacts the inner wall of the first shell, a plurality of first through holes are provided on the contact portion, a first contact pin is installed in the first through hole, and the first contact pin passes through the first contact head, the female head comprises a second shell and a second contact head, the second shell is sleeved on the outside of the second contact head, the second shell is in sliding contact with the second contact head, a second thread is provided on the inner wall of the second shell, a contact groove is provided on the second contact head, a second through hole is provided at the bottom of the contact groove, a second contact pin is installed in the second through hole, the second contact pin passes through the second contact head, a second sealing ring is provided at the bottom of the contact groove, the contact portion is slidably inserted into the contact groove, the first contact pin is connected with the second contact pin, and the first thread is matched with the second thread for connection.

[0008] As a preferred embodiment, a plurality of spaced-apart limit grooves are provided on the outer side of the contact portion, a plurality of spaced-apart limit blocks extend on the inner wall of the contact groove, the second sealing ring is located between the limit block and the bottom of the contact groove, and the limit block is slidably inserted into the limit groove.

[0009] As a preferred embodiment, a third thread is provided on the inner wall of the first shell, a third sealing ring is provided in the first shell, the third sealing ring contacts the first contact head, the first contact needle is located in the third sealing ring, the male head also includes a first fixer, a fourth thread is provided on the outer side of the first fixer, the third thread is matched with the fourth thread, and the first fixer contacts the third sealing ring.

[0010] As a preferred embodiment, a second annular step extends inside the second shell, an annular mounting groove is opened inside the second shell, the annular mounting groove is clamped with a limiting ring, an annular protrusion extends outside the second contact head, and the annular protrusion is clamped between the second annular step and the limiting ring.

[0011] As a preferred embodiment, a connecting groove is provided on the second contact head, a fifth thread is provided on the inner wall of the connecting groove, a fourth sealing ring is provided in the connecting groove, the second contact needle is located in the fourth sealing ring, the female head also includes a second fixer, a sixth thread is provided on the outer side of the second fixer, the fifth thread is matched with the sixth thread, and the second fixer touches the fourth sealing ring.

[0012] The beneficial effects of a waterproof connector disclosed by the utility model are:

[0013] By installing the male head in the first shell and the female head in the second shell, when the male head is plugged into the female head, the second shell is rotated so that the second thread on the second shell is matched and connected with the first thread on the first shell, thereby increasing the firmness of the connection between the male head and the female head;

[0014] When the male connector and the female connector are connected, the first sealing ring is used to isolate external moisture from entering between the inner wall of the contact groove and the outer side of the contact portion through the opening of the contact groove. When the first sealing ring fails, the second sealing ring isolates moisture from approaching the first contact pin and the second contact pin. The double-layer barrier can further enhance the waterproof effect of the connector itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a waterproof connector.

[0016] Figure 2 The utility model is a schematic diagram of the installation of a male head of a waterproof connector.

[0017] Figure 3This is a cross-sectional view of a first contact head of a waterproof connector of the utility model.

[0018] Figure 4 The utility model is a schematic diagram of the female head structure of a waterproof connector.

[0019] Figure 5 It is a cross-sectional view of a second contact head of a waterproof connector of the utility model.

[0020] Figure 6 It is a cross-sectional view of a first shell and a second shell of a waterproof connector of the utility model.

[0021] Figure 7 It is a cross-sectional view of a first contact head and a second contact head of a waterproof connector of the utility model. DETAILED DESCRIPTION

[0022] The present invention is further described and illustrated below in conjunction with specific embodiments and accompanying drawings:

[0023] Please refer to Figure 1 .

[0024] The utility model discloses a waterproof connector, comprising a male connector 1 and a female connector 5;

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 .

[0026] The male connector 1 includes a first housing 2, a first contact head 3 and a first fixer 4; in this embodiment, the first housing 2 is preferably a hollow cylindrical structure, and a first thread 21 is provided on the outer side of the first housing 2, and the first thread 21 is close to one end of the first housing 2; a first annular step 22 extends inside the first housing 2, and the first annular step 22 is located in the middle of the inner wall of the first housing 2, and a first notch 221 is provided on the first annular step 22;

[0027] Furthermore, a contact portion 31 is extended from one end of the first contact head 3, and a first sealing ring 32 is sleeved on the outer side of the contact portion 31, and the first sealing ring 32 is located between the first contact head 3 and the contact portion 31; a plurality of spaced limiting grooves 311 are provided on the outer side of the contact portion 31, and the limiting grooves 311 are arranged around the center of the first contact head 3 and on the outer side of the first contact head 3; a plurality of first through holes 312 are provided on the contact portion 31, and five first through holes 312 are preferably provided in this embodiment, and the first through holes 312 all penetrate the first contact head 3 and the contact portion 31, and a first contact needle 313 is installed in the first through hole 312, and the first contact needle 313 penetrates the first contact head 3, and the first contact needle 313 extends out of the other end of the first contact head 3; a second notch 33 is provided on the outer side of the first contact head 3.

[0028] The first housing 2 is sleeved on the outside of the first contact head 3, the first sealing ring 32 contacts the inner wall of the first housing 2, and the first contact head 3 is clamped on the first annular step 22; the first notch 221 is clamped on the second notch 33, and the first contact head 3 is fixed on the second notch 33 of the first housing 2 through the second notch 33 to prevent the first contact head 3 from sliding and deviating in the first housing 2.

[0029] Furthermore, a third thread is provided on the inner wall of the first shell 2, and the third thread is close to the other end of the first shell 2; a third sealing ring 23 is provided in the first shell 2, and the third sealing ring 23 touches the other end of the first contact head 3, and the first contact pin 313 is located in the third sealing ring 23; a fourth thread is provided on the outer side of the first fixture 4, and the third thread is matched and connected with the fourth thread, and the first fixture 4 touches the third sealing ring 23; the first fixture 4 is fixedly connected to the external wire, and the external wire is electrically connected to the first contact pin 313, and the third sealing ring 23 seals the gap between the first fixture 4 and the first shell 2 to prevent moisture from entering the first fixture 4 and causing a short circuit in the external wire.

[0030] Please refer to Figure 4-Figure 7 .

[0031] The female connector 5 includes a second housing 6, a second contact head 7 and a second fixture 8; in this embodiment, the second housing 6 is preferably a hollow cylindrical structure, and an annular mounting groove 62 is provided in the second housing 6, and the annular mounting groove 62 is close to one end of the second housing 6; a second annular step 63 extends in the second housing 6, and the second annular step 63 is located in the middle of the inner wall of the second housing 6, and there is a certain distance between the annular mounting groove 62 and the second annular step 63; a second thread 61 is provided on the inner wall of the second housing 6, and the second thread 61 is close to the other end of the second housing 6;

[0032] A connecting groove 71 is provided at one end of the second contact head 7, and a contact groove 72 is provided at the other end of the second contact head 7. A plurality of spaced limit blocks 721 are extended from the inner wall of the contact groove 72. The limit blocks 721 are arranged around the center of the second contact head 7 and are arranged on the outer side of the second contact head 7. A second through hole 722 is provided at the bottom of the contact groove 72. The second through hole 722 penetrates the second contact head 7. Both ends of the second through hole 722 are respectively located in the contact groove 72 and the connecting groove 71. A second contact pin 723 is installed in the second through hole 722. The second contact pin 723 penetrates the second contact head 7. Both ends of the second contact pin 723 penetrate into the contact groove 72 and the connecting groove 71 respectively.

[0033] Furthermore, a second sealing ring 724 is provided at the bottom of the contact groove 72, and the second sealing ring 724 is located between the limit block 721 and the bottom of the contact groove 72. The limit block 721 fixes the second sealing ring 724 at the bottom of the contact groove 72 to prevent the second sealing ring 724 from falling off when the male connector 1 is disconnected from the female connector 5.

[0034] Furthermore, an annular protrusion 73 extends from the outer side of the second contact head 7 , and the annular protrusion 73 is close to one end of the second contact head 7 .

[0035] The second shell 6 is sleeved on the outside of the second contact head 7, and the annular protrusion 73 is located between the annular mounting groove 62 and the second annular step 63. The annular mounting groove 62 is clamped with a limiting ring 621. The limiting ring 621 clamps the annular protrusion 73 between the second annular step 63 and the limiting ring 621. The limiting ring 621 prevents the second contact head 7 from detaching from the second shell 6. The second shell 6 and the second contact head 7 are in sliding contact, so that the second shell 6 can rotate on the second contact head 7.

[0036] Furthermore, a fifth thread is provided on the inner wall of the connecting groove 71, a fourth sealing ring 711 is provided at the bottom of the connecting groove 71, the second contact pin 723 is located in the fourth sealing ring 711, a sixth thread is provided on the outer side of the second fixture 8, the fifth thread and the sixth thread are matched and connected, and the second fixture 8 touches the fourth sealing ring 711; the second fixture 8 is fixedly connected to the external wire, the external wire is electrically connected to the second contact pin 723, and the fourth sealing ring 711 seals the gap between the second fixture 8 and the second contact head 7 to prevent moisture from entering the second fixture 8 and causing a short circuit in the external wire.

[0037] Please refer to Figure 1 , Figure 6 and Figure 7 .

[0038] When the connector is installed and connected, the first thread 21 is connected to the second thread 61 by rotating the second housing 6. In the process of connecting with the second thread 61, the first thread 21 will gradually pull the first contact head 3 closer to the second contact head 7, so that the contact portion 31 is slidably inserted into the contact groove 72, and the limit block 721 is slidably inserted into the limit slot 311. The first contact head 3 limits the second contact head 7 from rotating outside the contact portion 31 through the limit slot 311 to avoid damaging the first contact pin 313 and the second contact pin 723; the second contact pin 723 is inserted into the first through hole 312 and electrically connected to the first contact pin 313. The first contact pin 313 and the second contact pin 723 guide the current of the external wire on the first fixture 4 to the second fixture 8 ; Continue to rotate the second shell 6 until the opening of the contact groove 72 touches the first sealing ring 32, and the contact portion 31 touches the second sealing ring 724. The first sealing ring 32 blocks external moisture from entering between the outer side of the contact portion 31 and the inner wall of the contact groove 72. When the sealing effect of the first sealing ring 32 fails, the second sealing ring 724 blocks the moisture between the outer side of the contact portion 31 and the inner wall of the contact groove 72 from entering the inner side of the second sealing ring 724. The double-layer waterproof design can improve the waterproof effect of the connector when used outdoors; the first thread 21 of the first shell 2 is matched with the second thread 61 of the second shell 6 to firmly fix the male head 1 and the female head 5 together, thereby improving the effect of the connector against external pulling when used outdoors.

[0039] The utility model provides a waterproof connector, wherein a male head is installed in a first shell, and a female head is installed in a second shell. When the male head is plugged into the female head, the second shell is rotated so that a second thread on the second shell is matched and connected with a first thread on the first shell, thereby increasing the firmness of the connection between the male head and the female head.

[0040] When the male connector and the female connector are connected, the first sealing ring is used to isolate external moisture from entering between the inner wall of the contact groove and the outer side of the contact portion through the opening of the contact groove. When the first sealing ring fails, the second sealing ring isolates moisture from approaching the first contact pin and the second contact pin. The double-layer barrier can further enhance the waterproof effect of the connector itself.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A waterproof connector, characterized in that: Includes male and female connectors; The male connector includes a first housing and a first contact head, wherein the first housing is sleeved on the outside of the first contact head, a first thread is provided on the outside of the first housing, a contact portion extends from the first contact head, a first sealing ring is sleeved on the outside of the contact portion, the first sealing ring contacts the inner wall of the first housing, a plurality of first through holes are provided on the contact portion, first contact pins are installed in the first through holes, and the first contact pins pass through the first contact head; The female connector includes a second housing and a second contact head, the second housing is sleeved on the outside of the second contact head, the second housing is in sliding contact with the second contact head, a second thread is provided on the inner wall of the second housing, a contact groove is provided on the second contact head, a second through hole is provided at the bottom of the contact groove, a second contact pin is installed in the second through hole, the second contact pin passes through the second contact head, and a second sealing ring is provided at the bottom of the contact groove; The contact portion is slidably inserted into the contact groove, the first contact pin is connected with the second contact pin, and the first thread is matched with the second thread.

2. A waterproof connector according to claim 1, characterized in that: The outer side of the contact portion is provided with a plurality of spaced limiting grooves, the inner wall of the contact groove is provided with a plurality of spaced limiting blocks, the second sealing ring is located between the limiting block and the bottom of the contact groove, and the limiting block is slidably inserted into the limiting groove.

3. A waterproof connector as claimed in claim 2, characterized in that: A third thread is provided on the inner wall of the first shell, a third sealing ring is provided in the first shell, the third sealing ring contacts the first contact head, the first contact needle is located in the third sealing ring, the male head also includes a first fixer, a fourth thread is provided on the outer side of the first fixer, the third thread is matched with the fourth thread, and the first fixer contacts the third sealing ring.

4. A waterproof connector as claimed in claim 3, characterized in that: A second annular step extends in the second shell, an annular installation groove is provided in the second shell, a limiting ring is clamped in the annular installation groove, an annular protrusion extends outside the second contact head, and the annular protrusion is clamped between the second annular step and the limiting ring.

5. A waterproof connector as claimed in claim 4, characterized in that: A connecting groove is provided on the second contact head, a fifth thread is provided on the inner wall of the connecting groove, a fourth sealing ring is provided in the connecting groove, the second contact needle is located in the fourth sealing ring, the female head also includes a second fixer, a sixth thread is provided on the outer side of the second fixer, the fifth thread is matched with the sixth thread, and the second fixer touches the fourth sealing ring.

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