Connector cable waterproof covering structure

Abstract

The application provides a connector cable waterproof covering structure, which comprises a connector, a connecting outer cylinder, a rubber sleeve and a sleeve cylinder. The connector is connected with a cable. The connecting outer cylinder is arranged around the outer periphery of the cable and is assembled and fixed at the end of the connector. The sleeve cylinder is buckled to the connecting outer cylinder to stably connect the connector with the cable. The buckle section of the connecting outer cylinder is formed with a plurality of elastic buckling pieces by using the slot. The rubber sleeve is assembled along the cable and is arranged in the inner diameter of the buckle section by using the non-cylindrical shaft hole design characteristics of the rubber sleeve. When the buckle section is expanded by the rubber sleeve, the sleeve cylinder can be buckled tightly by the expanded buckle section when the sleeve cylinder covers the buckle section and is buckled and fixed, so that the cable is prevented from being separated from the connector.

Description

TECHNICAL FIELD

[0001] The present invention relates to a cable connector, in particular to a waterproof structure of a connector cable. BACKGROUND

[0002] Nowadays, the existing connectors are gradually widely and commonly used in outdoor places, so the waterproof effect of the connector is increasingly required. Most of the connectors are made of metal materials with good conductivity for signal transmission, and the metal materials are easily dampened to damage the transmission function or even lose the function. Although there are some products on the market specially for the connector moisture-proof structure, the waterproof effect is still not ideal.

[0003] An existing connector includes a plurality of conductive terminals, an insulating seat, a cable and a covering body. The conductive terminals are fixed in the insulating seat. The cable has a plurality of core wires, and each core wire is connected to each conductive terminal. The covering body covers the conductive terminals, the insulating seat and the cable. However, the covering body is easily failed to be injected and covered on the insulating seat and the cable due to the mold or the structure tolerance, which causes the whole connector to be scrapped and increases the cost. Since the insulating seat is a hard material and the covering body is a soft material, the two materials need to be tightly attached to each other to achieve the waterproof effect. However, after a period of use, the two materials will gradually generate gaps and peel off due to the large difference in physical properties, which causes water vapor to penetrate and makes the conductive terminals damp and reduces their efficiency. Therefore, how to improve the production yield of the connector, how to make the connector achieve the waterproof effect, and how to improve the overall structural strength and durability of the connector have become the research topics of the present invention. SUMMARY

[0004] The present invention aims to solve the above-mentioned problems in the prior art and provides a buckle type waterproof structure of a connector cable.

[0005] The connector cable waterproof covering structure comprises a connector connected to a cable; a connecting outer cylinder arranged around the outer periphery of the cable and assembled and fixed to the end of the connector, and the end of the connecting outer cylinder away from the connector forms a buckle section, the buckle section is provided with a plurality of split grooves along the axial direction at the end, and the buckle section forms a plurality of elastic buckling pieces, and the outer surface of the elastic buckling pieces 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-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, the outer diameter of the leak-proof section is larger than the outer diameter of the connecting section, and the inner diameter of the shaft sleeve hole at the position opposite to the leak-proof section is smaller than the inner diameter at the position opposite to the connecting section, the rubber sleeve is tightly sleeved on the outer periphery of the cable through the shaft sleeve hole, and the connecting section is assembled into the inner diameter of the buckle section of the connecting outer cylinder, the non-cylindrical design characteristic of the shaft sleeve hole enables the outer diameter of the rubber sleeve to be further stretched outward when the rubber sleeve is sleeved on the cable, the elastic buckling pieces of the connecting outer cylinder are further pushed out, and the leak-proof section is abutted against the end of the connecting outer cylinder; a sleeve cylinder is buckled and combined with the connecting outer cylinder through the cable, and a plurality of buckle grooves are arranged on the inner and outer diameter surfaces of the bottom end of the sleeve cylinder, and the sleeve cylinder is buckled and fixed with the buckle ribs of the connecting outer cylinder through the buckle grooves, so that the sleeve cylinder and the connecting outer cylinder can be tightly matched through the characteristic that the elastic buckling pieces of the connecting outer cylinder are pushed out by the rubber sleeve stretched outward.

[0006] Preferably, the inner diameter of the buckle section of the connecting outer cylinder forms an expanded hole and has a step, so that the inner diameter of the buckle section and the cable have a combined ring groove.

[0007] Preferably, the upper end of the leak-proof section of the rubber sleeve forms a sleeve section, the outer diameter of the sleeve section is smaller than the outer diameter of the leak-proof section, and the upper half of the sleeve section is provided with a buckling ring groove, and the upper end of the buckling ring groove further forms a guide section with an outer diameter smaller than the sleeve section.

[0008] Preferably, it further comprises a tightening ring, a plurality of split grooves are arranged at equal intervals on the periphery of the tightening ring, and a plurality of tightening pieces are defined between the split grooves, the top end of each of the tightening pieces forms a clamping jaw on the inner side, the tightening ring is sleeved on the sleeve section of the rubber sleeve, the clamping jaws of the tightening pieces are buckled and limited in the buckling ring groove, and the inner diameter of the top end of the sleeve cylinder forms a tapered hole that is tapered from bottom to top, the tapered hole is used to press and tighten the tightening pieces of the tightening ring, so that the clamping jaws clamp the buckling ring groove of the rubber sleeve, and the rubber sleeve is retracted and tightly fitted to the outer diameter of the cable.

[0009] Preferably, the outer edge of the top end of each of the tightening pieces of the tightening ring is provided with a guide slope.

[0010] Preferably, the shaft sleeve hole of the rubber sleeve forms a tapered hole that is tapered from bottom to top, and the angle difference between the top end and the bottom end of the shaft sleeve hole is between 2 degrees and 5 degrees.

[0011] Preferably, a ring protrusion is arranged on the inner wall of the sleeve hole of the rubber sleeve relative to the position of the leakage-proof section.

[0012] Preferably, the inner wall of the sleeve hole of the rubber sleeve is formed as a convex arc surface, and the bottom end of the sleeve hole has a larger diameter than the top end.

[0013] Preferably, the outer edge end surface of the leakage-proof section of the rubber sleeve is a flat surface or an arc surface.

[0014] The beneficial effects of the present application are that the connector is stably connected to the cable through the buckling combination of the connecting outer cylinder and the sleeve cylinder, which helps to improve the success rate of the assembly of the connector and the cable, greatly reduces the risk of failure of the connector combination, and has the characteristics of low structure cost, easy assembly, durability, and practicality of the structure.

[0015] The buckle section of the connecting outer cylinder utilizes the split groove to form a plurality of elastic buckling pieces, and utilizes the design characteristics of the non-straight sleeve hole of the rubber sleeve, so that when the rubber sleeve is assembled along the cable 11 and is combined into the inner diameter of the buckle section, the buckle section is expanded by the rubber sleeve, so that when the sleeve cylinder covers the buckle section and is buckled and fixed, the buckle tightness of the sleeve cylinder can be ensured through the stretched buckle section, and the concern that the cable is separated from the connector is avoided.

[0016] The outer support of the leakage-proof section of the rubber sleeve is attached to the inside of the sleeve cylinder, which can effectively prevent water pressure from entering and greatly improve the waterproof effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the present application.

[0018] Figure 2 It is an exploded view of the present application.

[0019] Figure 3 It is an exploded sectional view of the present application.

[0020] Figure 4 It is an enlarged sectional view of the rubber sleeve embodiment (one) of the present application.

[0021] Figure 5 It is a sectional view of the structure assembly process of the present application.

[0022] Figure 6 It is a partial enlarged sectional view of the structure assembly process of the present application.

[0023] Figure 7 It is a partial enlarged sectional view of the sleeve cylinder and the buckle of the connecting outer cylinder of the present application.

[0024] Figure 8 It is a partial enlarged sectional view of the sleeve cylinder and the connecting outer cylinder of the present application.

[0025] Figure 9 Sectional view of the rubber sleeve embodiment (two) of the present application.

[0026] Figure 10 Sectional view of the rubber sleeve embodiment (three) of the present application.

[0027] Figure 11 Sectional view of the rubber sleeve embodiment (four) of the present application.

[0028] In the figure:

[0029] 10: connector

[0030] 11: cable

[0031] 20: connecting outer cylinder

[0032] 21: snap-in section

[0033] 211: section groove

[0034] 212: elastic snap tab

[0035] 213: snap-in rib

[0036] 214: step portion

[0037] 22: combined ring groove

[0038] 30: rubber sleeve

[0039] 31: shaft sleeve hole

[0040] 311: ring protrusion

[0041] 312: convex arc surface

[0042] 32: connecting section

[0043] 33: leak-proof section

[0044] 34: sleeve joint section

[0045] 341: snap-in ring groove

[0046] 35: lead-in section

[0047] 40: tightening ring

[0048] 41: section groove

[0049] 42: tightening tab

[0050] 421: clamping jaw

[0051] 422: guide bevel

[0052] 50: sleeve cylinder

[0053] 51: buckle slot hole

[0054] 52: tapered hole DETAILED DESCRIPTION

[0055] The present application will be further described with reference to the drawings and specific examples, so that those skilled in the art can better understand the present application and implement it.

[0056] First, please refer to Figures 1 to 4 As shown in the figure, a connector cable waterproof covering structure, which comprises: a connector 10, connecting a cable 11; a connection outer cylinder 20, which is arranged around the outer periphery of the cable 11 and is assembled and fixed to the end of the connector 10, and the end of the connection outer cylinder 20 away from the connector 10 forms a buckle section 21, the buckle section 21 is provided with a plurality of split grooves 211 along the axial direction at the end, and the buckle section 21 forms a plurality of elastic clamping pieces 212, the outer surface of the elastic clamping piece 212 is provided with a plurality of buckle ribs 213 along the radial direction, and the inner diameter of the buckle section 21 forms an expanded hole and has a step 214, so that the inner diameter of the buckle section 21 and the cable 11 has a combined ring groove 22; a rubber sleeve 30, the inner diameter of the rubber sleeve 30 forms a non-straight cylindrical shaft sleeve 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 stop section 33, the outer diameter of the leak stop section 33 is larger than that of the connecting section 32, and the inner diameter of the shaft sleeve hole 31 at the position opposite to the leak stop section 33 is smaller than that at the position opposite to the connecting section 32, and the upper end of the leak stop section 33 forms a sleeve section 34, the outer diameter of the sleeve section 34 is smaller than that of the leak stop section 33, and the upper half of the sleeve section 34 is provided with a buckling ring groove 341, and the upper end of the buckling ring groove 341 further forms a lead-in section 35 with an outer diameter smaller than that of the sleeve section 34; a tightening ring 40, the periphery of the tightening ring 40 is provided with a plurality of split grooves 41 at equal intervals, and a plurality of tightening pieces 42 are defined between the split grooves 41, the top end of each tightening piece 42 forms a clamping jaw 421 on the inner side, and the outer edge of the top end of each tightening piece 42 is provided with a guide inclined surface 422; a sleeve 50, which passes through the cable 11 and the buckle combination of the connection outer cylinder 20, the bottom end of the sleeve 50 is provided with a plurality of buckle slot holes 51 penetrating the inner and outer diameter surfaces, and is buckled and fixed with the buckle ribs 213 of the connection outer cylinder 20 through the buckle slot holes 51, the inner diameter of the top end of the sleeve 50 forms a tapered hole 52 from bottom to top, which is used to extrude and tighten the tightening pieces 42 of the tightening ring 40.

[0057] The structure of the composition, please refer to Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8As shown, the connecting outer cylinder 20 is fixed at the end of the connector 10 and is arranged around the cable 11. The sleeve segment 34 of the rubber sleeve 30 is sleeved on the tightening ring 40, and the clamping jaw 421 of the clamping piece 42 is inserted into the buckling ring groove 341, and then the rubber sleeve 30 is tightly sleeved on the cable 11 through the shaft sleeve hole 31, and the connecting segment 32 is arranged in the combined ring groove 22 of the connecting outer cylinder 20 relative to the inner diameter of the buckling segment 21. Thus, the rubber sleeve 30 is sleeved on the cable 11 by using the non-cylindrical design characteristics of the shaft sleeve hole 31, so that the outer diameter of the rubber sleeve 30 can be further expanded outward, and the elastic buckling piece 212 of the buckling segment 21 is further pushed out, and the leakage stopping segment 33 is abutted against the end of the connecting outer cylinder 20. Then, the sleeve cylinder 50 is assembled along the cable 11 to the connecting outer cylinder 20. When the sleeve cylinder 50 passes through the rubber sleeve 30, the elastic buckling piece 212 of the connecting outer cylinder 20 can be further extruded by the material characteristics of the rubber sleeve 30, and the buckling groove hole 51 and the buckling rib 213 are further buckled and fixed. Thus, by the characteristics that the rubber sleeve 30 is expanded outward to push out the elastic buckling piece 212, the sleeve cylinder 50 and the connecting outer cylinder can be tightly matched to prevent the sleeve cylinder 50 from falling off. The leakage stopping segment 33 of the rubber sleeve 30 is also expanded outward to tightly abut against the inner wall of the sleeve cylinder 50, and can also fill the buckling groove hole 51 which is not buckled around the sleeve cylinder 50, so as to effectively buffer the water pressure impact and achieve the waterproof purpose.

[0058] In addition, when the sleeve cylinder 50 is buckled and fixed with the connecting outer cylinder 20, the tapered hole 52 of the inner diameter of the sleeve cylinder 50 extrudes each clamping piece 42 of the tightening ring 40 along the guide inclined surface 422, so that the clamping jaw 421 further clamps the buckling ring groove 341 of the rubber sleeve 30 inward, and the rubber sleeve 30 is retracted and tightly abuts against the outer diameter of the cable 11, which helps to improve the tightness and waterproof effect of the cable 11.

[0059] The shaft sleeve hole 31 of the rubber sleeve 30 is shown in Figure 1(a). Figure 4 As shown, the shaft sleeve hole 31 of the rubber sleeve 30 is a tapered hole formed from bottom to top, and the angle difference between the top end and the bottom end of the shaft sleeve hole 31 is between 2 degrees and 5 degrees.

[0060] The shaft sleeve hole 31 of the rubber sleeve 30 is shown in Figure 1(b). Figure 9 As shown, the inner wall of the shaft sleeve hole 31 of the rubber sleeve 30 is further provided with a ring protrusion 311 relative to the position of the leakage stopping segment 33, which helps to increase the outward expansion range of the leakage stopping segment 33 of the rubber sleeve 30 and improve the waterproof effect between the connecting outer cylinder 20 and the sleeve cylinder 50.

[0061] The shaft sleeve hole 31 of the rubber sleeve 30 is shown in Figure 1(c). Figure 10As shown, the inner wall of the shaft sleeve hole 31 of the rubber sleeve 30 is formed as a convex arc surface 312, and the bottom end of the shaft sleeve hole 31 has a larger diameter than the top end.

[0062] The outer edge end surface of the leakproof section of the rubber sleeve 30 is a flat surface (as shown in Figure 4 ) or an arc surface (as shown in Figure 11 ).

[0063] The above-mentioned specific embodiments have the following benefits: the connector 10 is stably connected to the cable 11 by the buckle combination of the connecting outer cylinder 20 and the fitting cylinder 50, which helps to improve the success rate of the assembly of the connector 10 and the cable 11, greatly reduces the risk of failure of the combination of the connector 10, and has the characteristics of low structure cost, easy assembly, durability, and the like, and retains the practicability of the structure.

[0064] Furthermore, the buckle section 21 of the connecting outer cylinder 20 is formed with a plurality of elastic buckling pieces 212 by the slot 211, and the non-cylindrical shaft sleeve hole 31 of the rubber sleeve 30 is designed to have the characteristics that when the rubber sleeve 30 is assembled along the cable 11 and is combined into the inner diameter of the buckle section 21, the buckle section 21 is expanded by the rubber sleeve 30, so that when the fitting cylinder 50 covers and buckles the buckle section 21, the buckle tightness of the fitting cylinder 50 can be ensured by the expanded buckle section 21, and the concern that the cable 11 is separated from the connector 10 is avoided.

[0065] The outer support of the leakproof section 33 of the rubber sleeve 30 is attached to the inside of the fitting cylinder 50, which can effectively prevent water pressure from entering and greatly improve the waterproof effect.

[0066] The above-mentioned embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation of the present application based on the present application is within the protection scope of the present application. The protection scope of the present application is subject to the claims.

Claims

1. A waterproof sheathing structure for connector cables, characterized in that, include: A connector that connects to a cable; A connecting outer tube is arranged around the outer periphery of the cable and assembled and fixed to the end of the connector. The end of the connecting outer tube away from the connector forms a snap-fit ​​section. The snap-fit ​​section is provided with several grooves along the axial direction at the end, and the snap-fit ​​section forms several elastic buckles. The outer surface of the elastic buckles is provided with several snap-fit ​​ribs along the radial direction. A rubber sleeve has a non-cylindrical bushing hole in its inner diameter. A connecting section is provided at one end of the outer diameter of the rubber sleeve, and a leak-proof section is provided at the upper end of the connecting section. The outer diameter of the leak-proof section 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. The rubber sleeve is tightly fitted through the bushing hole onto the cable, and the connecting section is assembled into the inner diameter of the snap-fit ​​section of the connecting outer cylinder. Utilizing the non-cylindrical design of the bushing hole, when the rubber sleeve is fitted onto the cable, its outer diameter can be further expanded outward, pushing out the elastic snap-fit ​​of the connecting outer cylinder, while the leak-proof section abuts against the end of the connecting outer cylinder. A set of sleeves passes through the cable and engages with the connecting outer cylinder through a snap fastener. The bottom periphery of the sleeve has several snap fastener slots on its inner and outer diameter surfaces, and engages with the snap fastener ribs of the connecting outer cylinder through these slots. Based on the characteristic of the elastic buckle of the connecting outer cylinder being pushed outward by the outward-stretching rubber sleeve, the sleeve and the connecting outer cylinder can fit together tightly.

2. The waterproof sheathing structure for connector cables as described in claim 1, characterized in that, The inner diameter of the snap-fit ​​section of the connecting outer cylinder is formed into an enlarged hole and has a stepped portion, so that there is a combined annular groove between the inner diameter of the snap-fit ​​section and the cable.

3. The waterproof sheathing structure for connector cables as described in claim 1, characterized in that, The upper end of the leak-stopping section of the rubber sleeve forms a connecting section. The outer diameter of the connecting section is smaller than that of the leak-stopping section. The upper half of the connecting section is provided with a fastening ring groove. The upper end of the fastening ring groove is also formed with an inlet section whose outer diameter is smaller than that of the connecting section.

4. The waterproof sheathing structure for connector cables as described in claim 3, characterized in that, It also includes a tightening ring, which has several equally spaced grooves around its periphery, and several tightening plates are defined between the grooves. The top of each tightening plate forms a claw on its inner side. The tightening ring is sleeved on the sleeve section of the rubber sleeve, and the claws of the tightening plates are locked and restricted in the locking ring groove. The inner diameter of the top of the sleeve forms a tapered hole that gradually narrows from bottom to top. The tapered hole is used to squeeze and tighten the tightening plates of the tightening ring, so that the claws hold the locking ring groove of the rubber sleeve, causing the rubber sleeve to shrink inward and fit tightly against the outer diameter of the cable.

5. The waterproof sheathing structure for connector cables as described in claim 4, characterized in that, Each of the tightening plates of the tightening ring has a guide bevel at its outer edge.

6. The waterproof sheathing structure for connector cables as described in claim 1, characterized in that, The bushing hole of the rubber sleeve is a tapered hole that gradually narrows from bottom to top, and the angle difference between the top and bottom of the bushing hole is between 2 and 5 degrees.

7. The waterproof sheathing structure for connector cables as described in claim 1 or 5, characterized in that, The inner wall of the bushing hole of the rubber sleeve has an annular protrusion relative to the leak-stopping section.

8. The waterproof sheathing structure for connector cables as described in claim 1, characterized in that, The inner wall of the bushing hole of the rubber sleeve forms a convex arc surface, and the bottom diameter of the bushing hole is larger than the top diameter.

9. The waterproof sheathing structure for connector cables as described in claim 1, characterized in that, The leak-proof section of the rubber sleeve has a flat or curved surface.

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