TWM628057U - Waterproof coating structure for a connector cable - Google Patents

Abstract

A waterproof coating structure for a connector cable may include a connector, a connecting outer tube, a rubber sleeve and a sleeve. The connector is connected to a cable. The connecting outer tube is annularly mounted to the periphery of the cable, and assembled and fixed to the end of the connector. The sleeve is engaged with the connecting outer tube, such that the connector is firmly connected to the cable, and the engagement portion of outer tube uses the slits to form a plurality of elastic clasps. The non-straight shaft sleeve hole of the rubber sleeve makes the engagement portion to be stretched out by the rubber sleeve when the rubber sleeve is assembled along the cable into the inner diameter of engagement portion. When the sleeve coats and fixes the engagement portion, the tightness of sleeve can be ensured through the engagement portion in the stretch status, preventing the cable from being detached from the connector.

Description

Connector cable waterproof covering structure

This creation relates to a cable connector, especially a waterproof covering structure of the connector cable.

According to the fact that the existing connectors are used in outdoor places, it has become more and more widespread, so the demand for the waterproof effect of the connectors is also higher and higher, and most of the connections are made of metal materials with excellent conductivity for electrical signal transmission. , and these metal materials are easily affected by moisture, which will damage the transmission function or even lose its function. Although there have been product structures specially designed for moisture-proof connectors on the market, the waterproof effect is still not ideal.

A conventional connector includes a plurality of conductive terminals, an insulating base, a cable and a covering body, one end of the insulating base is fixed through each of the conductive terminals, and the cable has a plurality of core wires, each of which is connected to each The conductive terminals are connected, and the coating system coats each of the conductive terminals, the insulating base and the part of the cable. However, the coating system is coated on the insulating bases and the cables by injection molding, which is prone to failure of injection coating due to mold or structural tolerances, that is, the entire set of connectors will be scrapped, resulting in high costs. Increase, and because the insulating seat system is a hard material, and the covering body is a soft material, the two materials need to be close to each other to achieve the waterproof effect, but after a period of use, the two materials are too different due to their physical properties. Therefore, a gap will gradually form between the two materials and peel off, resulting in the infiltration of water vapor, and the conductive terminals will be damp and lowered. Therefore, how to improve the production yield of the connector, how to make the connector waterproof, and how to improve the overall structural strength and durability of the connector have become the research topics of the present inventors.

In view of this, the creator has been engaged in the manufacturing, development and design of related products for many years, aiming at the above-mentioned goals, after detailed design and careful evaluation, and finally got a practical creation.

The technical problem to be solved by this creation is to provide a snap-on connector cable waterproof covering structure in view of the above-mentioned deficiencies in the prior art.

The above-mentioned connector cable waterproof covering structure includes: a connector, which is connected to a cable; a connecting outer cylinder, the tie ring is arranged on the outer circumference of the cable, and is assembled and fixed on the end of the connector, and the connection outer An end of the barrel away from the connector forms a snap section, the end of the snap section is provided with a plurality of slits along the axial direction, and the snap section is formed into a plurality of elastic buckle pieces, and the outer surface of the elastic buckle pieces is formed. A plurality of snap ribs are arranged along the radial direction; a rubber sleeve, the inner diameter of the rubber sleeve forms a non-straight cylindrical bushing hole, one end of the outer diameter of the rubber sleeve is provided with a connecting section, and the upper end of the connecting section is provided with a The leak-proof section, the outer diameter of the leak-proof section is larger than the outer diameter of the connection section, and the inner diameter of the bushing hole relative to the leak-proof section is smaller than the inner diameter of the connection section, and the rubber sleeve is The sleeve hole is tightly sheathed on the outside of the cable, and the connecting section is assembled into the inner diameter of the buckle section of the connecting outer cylinder. Using the design feature of the non-straight cylindrical sleeve hole, the rubber sleeve can be sheathed in the When the cable is used, the outer diameter can be stretched outward again, further pushing out the elastic buckle of the connecting outer cylinder, and the leak-proof section abuts the end of the connecting outer cylinder; The cable is buckled with the connection outer cylinder, and the bottom end of the sleeve is provided with a plurality of buckle grooves through the inner and outer diameter surfaces, and through the buckle grooves, it is buckled with the connection outer cylinder. The rib is fastened and fixed, and the connection is externally connected through the outwardly stretched rubber sleeve. The push-out feature of the elastic clasp of the tube enables the close fit between the sleeve and the connecting outer tube.

Preferably, the inner diameter of the buckle section connecting the outer cylinder is formed in a reamed shape and has a stepped portion, so that there is a combined ring groove between the inner diameter of the buckle section and the cable.

Preferably, the upper end of the leak-stop section of the rubber sleeve is formed with a socket section, the outer diameter of the socket section is smaller than the outer diameter of the leak-stop section, and the upper half of the socket section is provided with a snap ring. A groove is formed on the upper end of the snap ring groove, and a lead-in section whose outer diameter is smaller than that of the socket section is formed.

Preferably, it further includes a tightening ring, the circumference of the tightening ring is equidistantly provided with a plurality of slits, and a plurality of tightening sheets are defined between the slits, and the top ends of the tightening sheets are all on the inner side. A clamping claw is formed at the end, the tightening ring is sleeved on the socket section of the rubber sleeve, and the clamping claw of the tightening piece is limited in the buckle ring groove, and the top end of the sleeve is sleeved. The inner diameter is a tapered hole formed from bottom to top. The tapered hole is used to squeeze and tighten the tightening piece of the tightening ring, so that the clamping jaws can clamp the rubber sleeve. The ring groove makes the rubber sleeve shrink inward and closely fit the outer diameter of the cable.

Preferably, the outer edge of the top end of each tightening piece of the tightening ring is provided with a guiding slope.

Preferably, the bushing hole of the rubber sleeve is a tapered hole formed from bottom to top, and the angle difference between the top end and the bottom end of the bushing hole is between 2 degrees and 5 degrees.

Preferably, the inner wall of the bushing hole of the rubber sleeve is provided with a ring convex portion relative to the leak-proof section.

Preferably, the inner wall of the bushing hole of the rubber sleeve forms a convex arc surface, and the diameter of the bottom end of the bushing hole is larger than the diameter of the top end.

Preferably, the end surface of the outer edge of the leak-stop section of the rubber sleeve is either a flat surface or an arc surface.

Compared with the effect of the prior art: this creation is achieved by connecting the outer tube and the sleeve. The snap-fit connection can firmly connect the connector to the cable, which helps to improve the success rate of assembling the connector and the cable, greatly reduces the risk of failure of the connector assembly, and has low structural cost, easy assembly, and durability. and other characteristics, while retaining the practicality of the structure.

The buckling section connecting the outer cylinder utilizes the slits to form a plurality of the elastic buckling pieces, and utilizes the non-straight cylindrical sleeve hole design characteristics of the rubber sleeve to allow the rubber sleeve to pass along the cable 11 When assembled and assembled into the inner diameter of the buckle section, the buckle section will be stretched by the rubber sleeve, so that when the sleeve covers the buckle section and is fastened and fixed, the buckle section can pass through the card in the stretched state. The buckle section ensures the tightness of the buckle of the sleeve, and avoids the doubt that the cable is disconnected from the connector.

The leak-proof section of the rubber sleeve is externally supported against the inside of the sleeve, which can effectively prevent the impact of water pressure from entering, and greatly improve the waterproof effect.

10: Connector

11: Cable

20: Connect the outer cylinder

21: Buckle segment

211: Slotting

212: elastic buckle

213: Snap Ribs

214: Steps

22: Combined ring groove

30: Rubber sleeve

31: Bushing hole

311: Ring convex part

312: convex arc surface

32: Link segment

33: Leak stop section

34: Socket segment

341: Snap ring groove

35: Import segment

40: Tightening Ring

41: Slotting

42: Tie piece

421: Gripper

422: Guide Bevel

50: Sleeves

51: Snap slot hole

52: Tapered hole

[Picture 1] is a three-dimensional view of this creation.

[Picture 2] is an exploded view of this creation.

[Picture 3] is an anatomical view of this creation.

[Fig. 4] is an enlarged cross-sectional view of the rubber sleeve embodiment (1) of the present invention.

[Picture 5] is a cross-sectional view of the structural assembly process of this creation.

[Picture 6] is a partial enlarged cross-sectional view of the structural assembly process of this creation.

[Picture 7] is a partial enlarged cross-sectional view of the sleeved tube and the clip connecting the outer tube of this creation.

[Picture 8] is a partial enlarged cross-sectional view of the sleeve and the connecting outer cylinder of this creation going deeper into the buckle.

[Fig. 9] is a cross-sectional view of the second embodiment of the rubber sleeve of the present invention.

[Fig. 10] is a cross-sectional view of the rubber sleeve embodiment (3) of this creation.

[Fig. 11] is a cross-sectional view of the embodiment (4) of the rubber sleeve of the present invention.

In order to enable your reviewers to have a further understanding and understanding of the purpose, features and effects of this creation, please follow the [Simple Description of the Drawing] as follows:

First, please refer to Figures 1, 2, and 3, a waterproof covering structure for a connector cable, which includes: a connector 10, which is connected to a cable 11; The outer circumference of the cable 11 is assembled and fixed to the end of the connector 10 , and an end of the connecting outer cylinder 20 away from the connector 10 forms a snap section 21 , and the snap section 21 is axially provided with the end portion A plurality of slits 211 are formed, and the buckle section 21 is formed into a plurality of elastic buckle pieces 212. The outer surface of the elastic buckle pieces 212 is provided with a plurality of buckle ribs 213 along the radial direction, and the inner diameter of the buckle section 21 is defined by It is formed into a reaming shape and has a stepped portion 214, so that there is a combined ring groove 22 between the inner diameter of the buckle section 21 and the cable 11; a rubber sleeve 30, the inner diameter of the rubber sleeve 30 is formed into a non-straight cylindrical shape A bushing hole 31, one end of the outer diameter of the rubber sleeve 30 is provided with a connecting section 32, the upper end of the connecting section 32 is provided with a leak-proof section 33, the outer diameter of the leak-proof section 33 is larger than the outer diameter of the connecting section 32, and The inner diameter of the bushing hole 31 relative to the leak-proof section 33 is smaller than the inner diameter of the connection section 32 , and the upper end of the leak-proof section 33 forms a socket section 34 , and the outer diameter of the socket section 34 is It is smaller than the outer diameter of the leak-proof section 33 , and the upper half of the socket section 34 is provided with a buckle ring groove 341 , and the upper end of the buckle ring groove 341 further forms an introduction section 35 whose outer diameter is smaller than that of the socket section 34 . A tightening ring 40, the circumference of the tightening ring 40 is equidistantly provided with a plurality of slitting grooves 41, and a plurality of tightening sheets 42 are defined between the slitting grooves 41, and the tops of the tightening sheets 42 are all in A clamping claw 421 is formed at the inner end, and a guiding inclined surface 422 is provided on the outer edge of the top of each tightening piece 42; The bottom edge of the sleeve 50 is provided with a plurality of buckle slots 51 through the inner and outer diameter surfaces, and through the The buckle groove hole 51 is fastened and fixed with the buckle rib 213 connecting the outer cylinder 20. The inner diameter of the top end of the sleeve 50 is a tapered hole 52 formed from bottom to top. The tapered hole 52 is used to squeeze The tightening piece 42 of the tightening ring 40 is pressed tightly.

The composition of its structure, please refer to Figures 3, 5, 6, 7, and 8 again. The connecting outer tube 20 is fastened to the end of the connector 10 and is looped outside the cable 11. The rubber sleeve The sleeve 34 of the barrel 30 is firstly sleeved with the tightening ring 40, and the clamping jaws 421 of the tightening sheet 42 are locked and restrained in the locking ring groove 341, and then the rubber sleeve 30 is sleeved with a shaft. The hole 31 is tightly sheathed outside the cable 11, and the connecting section 32 is assembled into the combined ring groove 22 of the connecting outer cylinder 20 relative to the inner diameter of the buckle section 21, thereby utilizing the non-straight cylindrical shape of the bushing hole 31. The design feature enables the outer diameter of the rubber sleeve 30 to be stretched outward again when the rubber sleeve 30 is sheathed on the cable 11 , and further pushes out the elastic buckle piece 212 of the buckle section 21 . The segment 33 abuts against the end of the connecting outer cylinder 20, and then the sleeve 50 is assembled along the cable 11 toward the connecting outer cylinder 20. When the sleeve 50 passes through the rubber sleeve 30, it can be reused Due to the material properties of the rubber sleeve 30, the elastic buckle piece 212 connecting the outer cylinder 20 is squeezed from the outside and inside, and the buckle slot 51 and the buckle rib 213 are further buckled and fixed. The characteristic of the rubber sleeve pushing out the elastic buckle piece 212 enables the sleeve 50 to fit tightly with the connecting outer sleeve to prevent the sleeve 50 from falling off, and the leak-proof section 33 of the rubber sleeve 30 Then, they are also stretched outward and tightly adhered to the inner wall of the sleeve 50 , and can also fill in the buckle grooves 51 around the sleeve 50 that have not been buckled, so as to effectively buffer the impact of water pressure to achieve the purpose of waterproofing.

In addition, when the sleeve 50 and the connecting outer sleeve 20 are snap-fastened, the tapered hole 52 in the inner diameter of the sleeve 50 presses the respective tightening pieces 42 of the tightening ring 40 along the guiding inclined surface 422 , so that the clamping jaws 421 further inwardly clamp the snap ring groove 341 of the rubber sleeve 30 , so that the rubber sleeve 30 is retracted and closely fits the outer diameter of the cable 11 , which is helpful for lifting the cable 11 . Fitting tightness and waterproof effect of cable 11 By.

In the above-mentioned embodiment (1) of the bushing hole 31 of the rubber sleeve 30, please see Fig. 4, the bushing hole 31 of the rubber bushing 30 is a tapered hole formed from bottom to top. The angle difference between the top end and the bottom end of the bushing hole 31 is between 2 degrees and 5 degrees.

In the above-mentioned embodiment (2) of the bushing hole 31 of the rubber sleeve 30, please see from FIG. The portion 311 helps to increase the extent of the outward expansion of the leak-proof section 33 of the rubber sleeve 30 , thereby enhancing the waterproof effect between the connecting outer cylinder 20 and the sleeve 50 .

The above-mentioned embodiment (3) of the sleeve hole 31 of the rubber sleeve 30, please continue from the view shown in FIG. 10, the inner wall of the sleeve hole 31 of the rubber sleeve 30 forms a convex arc surface 312, and the sleeve hole 31 The bottom aperture is larger than the top aperture.

The end surface of the outer edge of the leak-stop section of the rubber sleeve 30 is either a flat surface (as shown in FIG. 4 ) or an arc surface (as shown in FIG. 11 ).

With the structure of the above-mentioned specific embodiment, the following benefits can be obtained: in the present invention, the connector 10 is stably connected to the cable 11 through the snap-fit connection of the outer tube 20 and the sleeve 50, which helps to improve the The success rate of assembling the connector 10 and the cable 11 greatly reduces the risk of failure of the assembly of the connector 10 , and the structure is low in cost, easy to assemble, and has the characteristics of durability and the practicability of the structure.

Furthermore, the buckle section 21 connecting the outer cylinder 20 uses the slot 211 to form a plurality of the elastic buckle pieces 212 , and uses the design characteristics of the non-straight cylindrical bushing holes 31 of the rubber sleeve 30 to make the rubber sleeve 30 . When the sleeve 30 is assembled along the cable 11 and assembled into the inner diameter of the buckle section 21, the buckle section 21 will be stretched by the rubber sleeve 30, so that the sleeve 50 covers the buckle When the segment 21 is snapped and fixed, it can The snapping section 21 in the stretched state ensures the snapping tightness of the sleeve 50 and avoids the doubt that the cable 11 is detached from the connector 10 .

The leak-stop section 33 of the rubber sleeve 30 is externally supported against the inside of the sleeve 50, which can effectively prevent the impact of water pressure from entering, and greatly improve the waterproof effect.

To sum up, this creation has indeed achieved a breakthrough structural design, and has improved new content, and at the same time can achieve industrial utilization and progress, and this creation has not been seen in any publications, and it is also novel. In line with the provisions of the relevant laws and regulations of the Patent Law, you can file a new patent application in accordance with the law, and I implore the examiner of the Jun Bureau to grant the legal patent right.

Only the above is only a preferred embodiment of the present creation, and should not be used to limit the scope of implementation of the present creation; that is, all equivalent changes and modifications made according to the scope of the patent application for this new model should still belong to the present new model. covered by the patent.

10: Connector

11: Cable

20: Connect the outer cylinder

21: Buckle segment

211: Slotting

212: elastic buckle

213: Snap Ribs

22: Combined ring groove

30: Rubber sleeve

31: Bushing hole

32: Link segment

33: Leak stop section

34: Socket segment

341: Snap ring groove

35: Import segment

40: Tightening Ring

41: Slotting

42: Tie piece

421: Gripper

422: Guide Bevel

50: Sleeves

51: Snap slot hole

52: Tapered hole

Claims (9)

A connector cable waterproof covering structure, comprising: a connector for connecting a cable; a connecting outer cylinder, the connecting outer cylinder is looped on the outer circumference of the cable, assembled and fixed to the end of the connector, and the end of the connecting outer cylinder away from the connector forms a snap section, the snap section is fixed by The end portion is provided with a plurality of slots along the axial direction, and the buckle segment is formed into a plurality of elastic buckle pieces, and the outer surface of the elastic buckle piece is provided with a plurality of buckle ribs along the radial direction; A rubber sleeve, the inner diameter of the rubber sleeve forms a non-straight cylindrical shaft sleeve hole, one end of the outer diameter of the rubber sleeve is provided with a connecting section, the upper end of the connecting section is provided with a leak-proof section, and the outer diameter of the leak-proof section is It is larger than the outer diameter of the connecting section, and the inner diameter of the bushing hole relative to the leak-proof section is smaller than the inner diameter relative to the connecting section, and the rubber sleeve is tightly sheathed outside the cable with the bushing hole , and assemble the connecting section into the inner diameter of the buckle section of the connecting outer cylinder, using the non-straight cylindrical design feature of the bushing hole, so that when the rubber sleeve is sleeved on the cable, the outer diameter can be supported outward again. , and further push out the elastic buckle piece of the connecting outer cylinder, and the leak-proof section abuts against the end of the connecting outer cylinder; A set of sleeves, the sleeve is connected to the connection outer cylinder through the cable, and the bottom edge of the sleeve is provided with a plurality of buckle slots through the inner and outer diameter surfaces. The buckle slot is fastened and fixed with the buckle rib of the connection outer cylinder, and accordingly the elastic buckle piece of the connection outer cylinder is pushed out through the outwardly stretched rubber sleeve, so that the sleeve is connected to the connection cylinder. The outer cylinders can be closely matched. The waterproof covering structure of the connector cable according to claim 1, wherein the inner diameter of the buckle section of the connecting outer cylinder is formed in a reamed shape and has a stepped portion, so that the inner diameter of the buckle section is consistent with the cable. There is a combined ring groove in between. The waterproof covering structure of the connector cable according to claim 1, wherein the upper end of the leak-proof section of the rubber sleeve forms a socket section, and the outer diameter of the socket section is smaller than the outer diameter of the leak-proof section , and the upper half of the socket connection section is provided with a buckle ring groove, and the upper end of the buckle ring groove further forms an introduction section whose outer diameter is smaller than that of the socket connection section. The waterproof covering structure of the connector cable according to claim 3, further comprising a tightening ring, a plurality of slits are equidistantly arranged around the tightening ring, and a plurality of slits are defined between the slits A tightening piece, the top of the tightening piece all forms a clamping claw at the inner end, the tightening ring is sleeved on the sleeve section of the rubber sleeve, and the clamping claw of the tightening piece is clamped and restricted In the snap ring groove, the inner diameter of the top end of the sleeve is a tapered hole formed from bottom to top, and the tapered hole is used to squeeze and tighten the tightening piece of the tightening ring to The clamping jaws are made to clamp the snap ring grooves of the rubber sleeve, so that the rubber sleeve is retracted and closely fits the outer diameter of the cable. The waterproof covering structure of the connector cable according to claim 4, wherein a guiding slope is set on the outer edge of the top end of each of the tightening pieces of the tightening ring. The waterproof covering structure of the connector cable according to claim 1, wherein the bushing hole of the rubber sleeve is a tapered hole formed from bottom to top, and the top end and the bottom end of the bushing hole are between the top end and the bottom end. The angle difference is between 2 degrees and 5 degrees. The waterproof covering structure of the connector cable according to claim 1 or 5, wherein a ring convex portion is set on the inner wall of the bushing hole of the rubber sleeve relative to the leak-proof section. The waterproof covering structure of the connector cable according to claim 1, wherein the inner wall of the bushing hole of the rubber sleeve forms a convex arc surface, and the diameter of the bottom end of the bushing hole is larger than the diameter of the top end. The waterproof covering structure of the connector cable according to claim 1, wherein the surface of the leak-proof section of the rubber sleeve is any one of a flat surface and an arc surface.

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