JPH04102171U - Waterproof cap for connector - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the waterproof effect of a waterproof cap for a connector, especially the airtightness between the neck of the waterproof cap and the cable. [Structure] A thin part is provided between the opening of the waterproof cap and the neck, and when the connector plug is attached, the thin part is folded (turned up) to prevent sliding between the neck and the cable. The device is characterized in that the mounting operation is accomplished without any movement.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a waterproof cap for connectors, and especially the connection between the waterproof cap and a cable. It is suitable for connectors of electrical equipment for small vessels such as fishing boats. It concerns the water cap.

0002

[Conventional technology]

Conventionally, this type of waterproof cap has a structure as shown in the cross-sectional view of FIG. The mounting operation was as shown in FIG. In other words, as is clear from the cross-sectional view, The waterproof cap 1 made of rubber with a uniform wall thickness is waterproof as shown in the initial state of FIG. 5(a). The neck 1A of the water cap is inserted into the cable 2, and the opening 1B is inserted into the connector plug 3. is inserted into. On the other hand, the plug receiver 4 to be connected to the connector plug 3 is electrically It is fixed to the side of the device, and the electrical connections between the two are shown in (b) to (d) in Figure 5. This is done by the mounting operation shown in . First, attach waterproof cap 1 to connector plug 3. Shift to the right in the drawing to expose the connector plug 3 (FIG. 5(b)). Next, as shown in Figure 5(c), the connector plug 3 is electrically attached and fixed to the plug receiver 4. After that, as shown in Figure 5(d), return the waterproof cap 1 to the left to complete the installation operation. do.

0003

[Problem that the idea aims to solve]

In this way, the neck portion 1A of the waterproof cap 1 is connected to the cable 2 each time the waterproof cap 1 is attached. sliding, a gap 7 is created between the two, resulting in insufficient airtightness. Therefore, the desired waterproof effect cannot be fully achieved. Waterproofing can be achieved by making gap 7 sufficiently small. Although this is an improvement from a viewpoint, the sliding operation when moving the waterproof connector 1 becomes difficult. There were some inconveniences.

0004 Also, conventionally, there is a waterproofing method that involves wrapping tape after connecting the connector connection part. However, this is time-consuming as it requires attaching and detaching the tape each time the connector is attached or detached. There were some inconveniences.

[0005]

[Means to solve the problem]

The purpose of this invention is to solve the above-mentioned inconveniences, and for that purpose, a waterproof cap is A thin wall is provided between the opening and the neck of the plastic wrap, and this thin wall is folded (turned over). ), thereby eliminating sliding between the neck and the cable. It can be fixed, thereby ensuring waterproofing of the neck.

[0006]

【Example】

Hereinafter, an embodiment of the present invention shown in FIGS. 1, 2, and 3 will be described in detail.

[0007] FIG. 1 shows an example of how the waterproof cap 10 of this embodiment is used, and more details are shown in FIG. 2, the waterproof cap 10 is provided in the thick opening 10A and a part thereof. a non-slip portion 10B, a thick neck portion 10D that contacts the cord, and a non-slip portion 10B. It is composed of a thick neck part 10D and a thin part 10C provided between the neck part 10D and the neck part 10D. like this The operation of attaching the waterproof cap 10 will be described with reference to FIG. 3. waterproof key As shown in FIG. 3(a), the cap 10 includes a connector plug 16 and connects the cable 12. is covered by the thick neck portion 10D. As mentioned before, this thick neck part 10D It has a thick wall and its inner diameter is slightly smaller than the diameter of the cable 12. Because of this, the airtightness between the two is high, and although the sliding properties between the two are not good, the waterproofing effect is high. is perfect. Plug receiver 1 with connector plug 16 fixed to device side 5 3, first pinch the thick opening 10A with your fingers and insert it as shown in Figure 3(b). If you shift it to the right, the thin part 10C will be in a folded (or turned over) state. The connector plug 16 is now completely exposed. In this state, the connector plug 16 , when connected to the plug receiver 13 as shown in FIG. 3(C), the waterproof cap 10 Pinch the thick opening 10A with your fingers and slide it to the left in the drawing using the anti-slip part 10B. When the waterproof cap 10 is returned to its original position, the tip of the thick opening 10A of the waterproof cap 10 is inserted into the side surface 5 of the device. As shown in FIG. 3(d), it is fitted into the waterproof cylinder 15 that is integrally formed with the material. The outer diameter of the waterproof cylinder 15 is configured to be slightly larger than the inner diameter of the thick opening 10A. Therefore, the airtightness between the two is ensured in the state shown in FIG. 3(d).

[0008]

[Effect of the idea]

As described above, according to the present invention, the thick neck of the waterproof cap and the airtightness of the cable The waterproofing effect is even more reliable compared to conventional waterproof caps. It becomes reliable. Furthermore, the opening of the waterproof cap is also provided on the side of the device. The sealed waterproof cylinder ensures airtightness between the two, further improving the waterproofing effect. It will be uploaded.

[Brief explanation of drawings]

FIG. 1 is a drawing showing an embodiment of the present invention.

FIG. 2 is a sectional view of the waterproof cap in this embodiment.

FIG. 3 is a sectional view for explaining the operation of attaching the waterproof cap in the embodiment.

FIG. 4 is a sectional view of a conventional waterproof cap.

FIG. 5 is a sectional view for explaining the operation of attaching the conventional waterproof cap.

[Explanation of symbols]

1,10 Waterproof cap 1A neck 1B opening 2,12 Cable 3,16 Connector plug 4,13 Plug receiver 5 Equipment side 7 Gap 10A thick opening 10B Anti-slip part 10C Thin part 10D thick neck 11 Equipment body 14 Frame 15 Waterproof cylinder

Claims (3)

[Scope of utility model registration request] 1. A waterproof cap for waterproofing a connection part of a connector, in which a part of the waterproof cap is made thin, and when the connector is attached or detached, the thin part is folded to attach or detach. A waterproof cap for connectors that can ensure waterproofing between the cable and the cable. 2. The waterproof cap according to claim 1, wherein the part of the thin wall structure is an intermediate portion between the opening and the neck of the waterproof cap. 3. The waterproof cap for a connector according to claim 1, wherein a portion of the waterproof cap that comes into contact with the cable is made thick.