CN219144537U - Waterproof connector joint - Google Patents
Waterproof connector joint Download PDFInfo
- Publication number
- CN219144537U CN219144537U CN202222570744.XU CN202222570744U CN219144537U CN 219144537 U CN219144537 U CN 219144537U CN 202222570744 U CN202222570744 U CN 202222570744U CN 219144537 U CN219144537 U CN 219144537U
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- waterproof
- clamping groove
- rubber core
- pin needle
- falling
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Abstract
The utility model discloses a waterproof connector joint, which relates to the technical field of waterproof connectors and comprises a PIN needle, a joint rubber core, a waterproof ring, a protective shell and waterproof glue, wherein the joint rubber core is formed on the outer circumferential surface of the PIN needle, so that the joint rubber core can be mutually nested with a second part of anti-falling clamping groove of the PIN needle; after the waterproof glue is cooled and solidified, the waterproof glue and the first part of the anti-falling clamping groove which can be mutually nested, so that the PIN needle and the waterproof glue are not easy to separate, and the part of the waterproof glue embedded into the first part of the anti-falling clamping groove can form a multi-layer waterproof layer which is mutually staggered with the anti-falling step of the PIN needle, so that the waterproof effect is better.
Description
Technical Field
The utility model relates to the technical field of waterproof connectors, in particular to a waterproof connector joint.
Background
The waterproof connector can be applied to the environment with water, and can ensure that the mechanical performance and the electrical performance of the connector can be normally used under the condition of bearing certain water pressure. The existing waterproof connector is mainly prepared by inserting a PIN needle on a rubber core, and then arranging glue for waterproof at one end point of the PIN needle, wherein the structure is as much as that of the conventional waterproof connector
The improved waterproof connector provided by the Chinese utility model with the patent number of 201720577460.X is characterized in that a female seat rubber core and a male PIN rubber core are subjected to first injection molding respectively, a female seat PIN needle is arranged on the female seat rubber core in a penetrating manner, a male PIN PIN needle is arranged on the male PIN rubber core in a penetrating manner, second injection molding is performed after assembly is completed, sealant is arranged between the female seat rubber core and the female seat PIN needle, sealant is arranged between the male PIN rubber core and the male PIN needle, and the sealant is subjected to low-pressure injection molding;
or the waterproof connector joint male head is provided by the Chinese utility model with the patent number of 201920085136.5, and waterproof glue is arranged in the groove at the top of the connector male head after the connector male pin is arranged in the plastic sleeve of the connector male head, so that the waterproof connector joint male head has the waterproof and dampproof functions.
The existing design can play a certain waterproof effect, but the connector male pin and the connector male plastic sleeve are fixed in a mode of directly inserting the connector male pin on the connector male plastic sleeve (rubber core), so that the connection stability between the connector male pin and the connector male plastic sleeve is low, and when the connector male pin and the connector male plastic sleeve are impacted, the connector male pin and the connector male plastic sleeve are easy to fall off or generate a larger gap; the waterproof glue is directly dotted in the corresponding groove, after the waterproof glue is solidified, the waterproof glue is impacted and is also easy to separate from the male plastic sleeve of the connector or generate a larger gap, and for the connector applied to the water environment, the waterproof performance of the connector is reduced, and the mechanical performance and the electrical performance of the connector are directly influenced. It is therefore necessary to invent a new waterproof connector joint structure.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a waterproof connector fitting comprising a PIN needle; the outer circumferential surface of the PIN needle is provided with a plurality of anti-falling steps along the axial direction, and anti-falling clamping grooves are formed between the adjacent anti-falling steps, wherein each anti-falling clamping groove comprises a first part of anti-falling clamping groove close to the front end of the PIN needle and a second part of anti-falling clamping groove close to the rear end of the PIN needle; the outer circumferential surface of the PIN needle is provided with a joint rubber core in a nested mode, the edge of the outer circumferential surface of the joint rubber core extends forwards to form a first surrounding frame corresponding to the first part of the anti-drop clamping groove, the edge of the outer circumferential surface of the joint rubber core extends backwards to form a second surrounding frame corresponding to the rear end of the PIN needle, the outer circumferential surface of the joint rubber core is provided with an annular clamping groove, and a waterproof ring is correspondingly fixed on the annular clamping groove; the waterproof connector joint further comprises a protective shell; the rear end of the protective shell is provided with a rubber core inserting opening, the front end of the protective shell is provided with a waterproof adhesive preparation opening, and an annular third anti-falling clamping groove is formed on the inner wall of the front end of the protective shell; the front end of the joint rubber core is inserted into the protective shell from the rubber core inserting opening, the first surrounding frame is used for blocking part of the opening of the third anti-drop clamping groove, and the blocked part of the opening is a part, far away from the waterproof rubber preparation opening, of the third anti-drop clamping groove; the waterproof connector joint further comprises waterproof glue, the waterproof glue enters the protective shell from the waterproof glue preparation opening, and the waterproof glue containing cavity formed by the third anti-falling clamping groove, the inner cavity of the first surrounding frame and the inner cavity, close to the waterproof glue preparation opening, in the protective shell is filled.
As a further scheme of the utility model: the waterproof ring is an elastic waterproof ring.
As a further scheme of the utility model: the front end inner wall of the third anti-drop clamping groove extends towards the axis direction close to the protective shell to form a resisting part for resisting the separation of the waterproof glue, wherein the middle part of the resisting part is provided with an integrated through hole corresponding to the PIN needle and the waterproof glue preparation hole.
As a further scheme of the utility model: the surface shaping of protective housing has retaining ring and external screw thread.
As a further scheme of the utility model: the rear end edge of the second surrounding frame is provided with an in-place convex strip corresponding to the edge of the rubber core inserting opening.
Compared with the prior art, the utility model has the following beneficial effects:
firstly, the outer circumference of the PIN needle is provided with the joint rubber core, so that the joint rubber core can be mutually nested with the second part anti-drop clamping groove of the PIN needle, on one hand, the PIN needle is not easy to separate from the joint rubber core, on the other hand, the anti-drop step of the PIN needle can form a mutually staggered multi-layer waterproof layer with the part of the joint rubber core, which is embedded into the second part anti-drop clamping groove, and the waterproof effect is better.
After the waterproof glue is cooled and solidified, the waterproof glue and the first part of the anti-falling clamping groove which can be mutually nested with the PIN needle are not easy to separate, the part of the waterproof glue embedded with the first part of the anti-falling clamping groove can form a multi-layer waterproof layer which is mutually staggered with the anti-falling step of the PIN needle, and the waterproof effect is better.
And the waterproof glue enters the third anti-falling clamping groove from the opening part of the third anti-falling clamping groove which is not blocked by the first surrounding frame, after the waterproof glue fills the third anti-falling clamping groove and is cooled and solidified, the front end inner walls of the first surrounding frame and the third anti-falling clamping groove can jointly resist the anti-degumming in the third anti-falling clamping groove, and the anti-degumming width in the third anti-falling clamping groove is larger than the width of the opening of the third anti-falling clamping groove which is not blocked by the first surrounding frame, so that the anti-falling in the third anti-falling clamping groove is in a state clamped by the front end inner walls of the first surrounding frame and the third anti-falling clamping groove together, and the waterproof glue entering the third anti-falling clamping groove forms a multi-layer waterproof layer which is staggered with the front end inner walls of the first surrounding frame and the third anti-falling clamping groove, thereby the waterproof connector joint is difficult to generate separation or generate a larger gap when the waterproof glue, the protective shell, the joint glue core and the PIN needle are impacted.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic structural view of the present utility model without preparing the waterproof glue;
FIG. 3 is a schematic diagram of the connection structure of the PIN needle and the joint rubber core in the utility model;
fig. 4 is a schematic diagram of another connection structure of the PIN needle and the joint rubber core in the present utility model.
Reference numerals and names in the drawings are as follows:
the PIN needle-1, the anti-drop step-2, the first part anti-drop clamping groove-3, the second part anti-drop clamping groove-4, the joint rubber core-5, the first surrounding frame-6, the second surrounding frame-7, the annular clamping groove-8, the waterproof ring-9, the protective shell-10, the rubber core inserting opening-11, the waterproof rubber preparation opening-12, the third anti-drop clamping groove-13, the waterproof rubber-14, the resisting part-15, the integral passing opening-16, the retainer ring-17, the external thread-18, the in-place raised strip-19 and the waterproof rubber containing cavity-100.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, a waterproof connector joint includes a PIN 1, a protective case 10, and a waterproof adhesive 14.
The outer circumference of the PIN needle 1 is provided with a plurality of anti-falling steps 2 along the axial direction, and an anti-falling clamping groove is formed between the adjacent anti-falling steps 2, wherein the anti-falling clamping groove comprises a first part anti-falling clamping groove 3 close to the front end of the PIN needle 1 and a second part anti-falling clamping groove 4 close to the rear end of the PIN needle 1. The outer circumferential surface of the PIN needle 1 is provided with a joint rubber core 5, wherein the joint rubber core 5 and the second part anti-drop clamping groove 4 are arranged in a nested way. The outer circumference of the PIN needle 1 is provided with the joint rubber core 5, so that the joint rubber core 5 can be mutually nested with the second part anti-falling clamping groove 4 of the PIN needle 1, on one hand, the PIN needle 1 is not easy to separate from the joint rubber core 5, on the other hand, the anti-falling step 2 of the PIN needle 1 can form a multi-layer waterproof layer which is mutually staggered with the part of the joint rubber core 5 embedded with the second part anti-falling clamping groove 4, and the waterproof effect is better.
The edge of the outer circumferential surface of the joint rubber core 5 extends forwards to form a first surrounding frame 6 corresponding to the first part of anti-falling clamping groove 3, the edge of the outer circumferential surface of the joint rubber core 5 extends backwards to form a second surrounding frame 7 corresponding to the rear end of the PIN needle 1, an annular clamping groove 8 is formed in the outer circumferential surface of the joint rubber core 5, and a waterproof ring 9 is correspondingly fixed on the annular clamping groove 8.
The rear end of the protective shell 10 is provided with a rubber core inserting opening 11, the front end of the protective shell 10 is provided with a waterproof adhesive preparation opening 12, and an annular third anti-falling clamping groove 13 is formed on the inner wall of the front end of the protective shell 10; the front end of the joint rubber core 5 is inserted into the protective shell 10 from the rubber core inserting opening 11, the first surrounding frame 6 is used for blocking part of the opening of the third anti-falling clamping groove 13, and the blocked part of the opening is a part, far away from the waterproof adhesive preparation opening 12, of the third anti-falling clamping groove 13.
The waterproof glue 14 enters the protective shell 10 from the waterproof glue preparation port 12 and fills the waterproof glue containing cavity 100 formed by the third anti-falling clamping groove 13, the inner cavity of the first surrounding frame 6 and the inner cavity of the protective shell 10, which is close to the waterproof glue preparation port 12.
After the waterproof glue 14 is cooled and solidified, the waterproof glue 14 can be mutually nested with the first part anti-falling clamping groove 3 of the PIN needle 1, so that the PIN needle 1 and the waterproof glue 14 are not easy to separate, the part, embedded into the first part anti-falling clamping groove 3, of the waterproof glue 14 can form a multi-layer waterproof layer which is mutually staggered with the anti-falling step 2 of the PIN needle 1, and the waterproof effect is better.
The waterproof glue 14 enters the third anti-falling clamping groove 13 from the opening part of the third anti-falling clamping groove 13 which is not blocked by the first surrounding frame 6, after the waterproof glue 14 fills the third anti-falling clamping groove 13 and is cooled and solidified, the front end inner walls of the first surrounding frame 6 and the third anti-falling clamping groove 13 can jointly resist the anti-falling in the third anti-falling clamping groove 13, the anti-falling width in the third anti-falling clamping groove 13 is larger than the width of the opening of the third anti-falling clamping groove 13 which is not blocked by the first surrounding frame 6, the anti-falling clamping groove 13 is in a state of being clamped by the front end inner walls of the first surrounding frame 6 and the third anti-falling clamping groove 13, and the waterproof glue entering the third anti-falling clamping groove 13 forms a multi-layer waterproof layer which is staggered with the front end inner walls of the first surrounding frame 6 and the third anti-falling clamping groove 13, so that when the waterproof connector joint is impacted, the waterproof glue, the joint rubber core and the PIN needle are not easy to separate or generate a large waterproof effect.
The waterproof ring 9 is an elastic waterproof ring, preferably a rubber waterproof ring, and the waterproof ring 9 has a waterproof effect, and the waterproof ring 9 is arranged between the joint rubber core 5 and the protective shell 10 in an elastic expansion mode, so that part of impact energy can be absorbed when the waterproof connector joint is impacted.
Preferably, the inner wall of the front end of the third anti-drop slot 13 extends towards the axis direction close to the protective shell 10 to form a resisting part 15 resisting the release of the waterproof adhesive 14, wherein the middle part of the resisting part 15 is provided with an integrated through hole 16 corresponding to the PIN 1 and the waterproof adhesive preparation hole 12, the resisting area is increased, and the waterproof adhesive 14 is not easy to be released from the protective shell 10.
The surface of the protective shell 10 is provided with a retainer ring 17 and an external thread 18, and the waterproof connector joint can be correspondingly manufactured into a waterproof connector male head or a waterproof connector female head according to the requirements.
The preparation process of the waterproof connector joint comprises the following specific steps:
s1, manufacturing a plurality of anti-falling steps on a PIN needle along the axial direction of the PIN needle;
s2, forming a joint rubber core on the PIN needle to enable the joint rubber core to be tightly connected with the PIN needle;
s3, sleeving the waterproof ring on an annular clamping groove on the outer circumferential surface of the joint rubber core;
s4, pressing the joint rubber core and the waterproof ring into the protective shell, wherein the pressing-in direction is from a rubber core inserting port of the protective shell;
s5, forming waterproof glue in the waterproof glue accommodating cavity to obtain the waterproof connector joint.
The rear end edge of the second surrounding frame 7 is formed with an in-place raised strip 19 corresponding to the edge of the rubber core inserting port 11; in step S4, the joint rubber core and the waterproof ring are pressed into the protective housing together, and the in-place protruding strip pressed into the joint rubber core offsets with the edge of the rubber core insertion opening of the protective housing, and the position of the first surrounding frame can be ensured by arranging the in-place protruding strip, so that the connection stability and the waterproof performance between the waterproof rubber and the protective housing are ensured.
The joint rubber core is formed by injection molding on the outer circumferential surface of the PIN needle, and the joint rubber core and the second part of the anti-falling clamping groove on the PIN needle are arranged in a nested manner. The waterproof glue is formed in the waterproof glue accommodating cavity in an injection molding mode, the waterproof glue and the first part of the anti-falling clamping groove on the PIN needle are mutually nested, and the waterproof glue fills the third anti-falling clamping groove. The water-proof glue is preferably epoxy resin.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A waterproof connector joint is characterized in that,
the waterproof connector joint comprises a PIN needle;
the outer circumferential surface of the PIN needle is provided with a plurality of anti-falling steps along the axial direction, and anti-falling clamping grooves are formed between the adjacent anti-falling steps, wherein each anti-falling clamping groove comprises a first part of anti-falling clamping groove close to the front end of the PIN needle and a second part of anti-falling clamping groove close to the rear end of the PIN needle;
the outer circumferential surface of the PIN needle is provided with a joint rubber core in a nested mode, the edge of the outer circumferential surface of the joint rubber core extends forwards to form a first surrounding frame corresponding to the first part of the anti-drop clamping groove, the edge of the outer circumferential surface of the joint rubber core extends backwards to form a second surrounding frame corresponding to the rear end of the PIN needle, the outer circumferential surface of the joint rubber core is provided with an annular clamping groove, and a waterproof ring is correspondingly fixed on the annular clamping groove;
the waterproof connector joint further comprises a protective shell;
the rear end of the protective shell is provided with a rubber core inserting opening, the front end of the protective shell is provided with a waterproof adhesive preparation opening, and an annular third anti-falling clamping groove is formed on the inner wall of the front end of the protective shell;
the front end of the joint rubber core is inserted into the protective shell from the rubber core inserting opening, the first surrounding frame is used for blocking part of the opening of the third anti-drop clamping groove, and the blocked part of the opening is a part, far away from the waterproof rubber preparation opening, of the third anti-drop clamping groove;
the waterproof connector joint further comprises waterproof glue, the waterproof glue enters the protective shell from the waterproof glue preparation opening, and the waterproof glue containing cavity formed by the third anti-falling clamping groove, the inner cavity of the first surrounding frame and the inner cavity, close to the waterproof glue preparation opening, in the protective shell is filled.
2. The waterproof connector fitting of claim 1 wherein the waterproof ring is an elastic waterproof ring.
3. The waterproof connector joint according to claim 1, wherein the inner wall of the front end of the third anti-drop clamping groove extends towards the axis direction close to the protective shell to form a resisting part for resisting the release of the waterproof adhesive, and the middle part of the resisting part is provided with an integrated through hole corresponding to the PIN needle and the waterproof adhesive preparation hole.
4. The waterproof connector fitting of claim 1 wherein the protective shell is formed with a collar and external threads on a surface thereof.
5. The waterproof connector fitting according to claim 1, wherein the rear end edge of the second surrounding frame is formed with an in-place ridge corresponding to the edge of the rubber core insertion opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222570744.XU CN219144537U (en) | 2022-09-26 | 2022-09-26 | Waterproof connector joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222570744.XU CN219144537U (en) | 2022-09-26 | 2022-09-26 | Waterproof connector joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219144537U true CN219144537U (en) | 2023-06-06 |
Family
ID=86565615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222570744.XU Active CN219144537U (en) | 2022-09-26 | 2022-09-26 | Waterproof connector joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219144537U (en) |
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2022
- 2022-09-26 CN CN202222570744.XU patent/CN219144537U/en active Active
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