Core wire protection structure of assembled elbow connector

Abstract

A plastic supporting tube is embedded in one arm of an L-shaped metal shielding tube, a rubber sleeve is embedded in the other arm of the L-shaped metal shielding tube, and the end faces of the plastic supporting tube and the rubber sleeve are smooth cambered surfaces. According to the utility model, the plastic supporting tube and the rubber tube are arranged at the periphery of the cable in the connector, so that the abrasion of each structural member in the connector to the cable when the cable is pulled by an external force can be effectively reduced, the purposes of protecting the cable in the connector, avoiding or delaying the abrasion of the cable and prolonging the service life of the elbow connector are achieved, the structure is simple, and the assembly is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to elbow connector technical field, especially the core wire protection structure of assembly type elbow connector. BACKGROUND

[0002] Elbow connector has been widely applied in the fields of robot, industrial automation, sensor, industrial camera and track transportation, engineering machinery, wisdom agriculture etc., such as M23 elbow connector, which is generally assembly type, with shield metal shell and inner rubber shell, when using, the cable is inserted from one end, connected with the connector (such as terminal) and fixed, then the connector is fixed on the other end of the elbow connector. In practical application, although it has complete and good shield metal shell, some elbow connectors still have unstable signal transmission after a period of use, the main reason is that the cable is pulled by external force, which causes the cable to hit the rubber shell continuously or intermittently, resulting in damage to the cable and affecting signal transmission.

[0003] Therefore, the utility model improves the structure of the assembly type elbow connector to avoid or slow down the damage of the cable during assembly and use, prolong the service life of the connector, and ensure stable signal transmission. SUMMARY

[0004] In view of the above problems in the prior art, the utility model provides a core wire protection structure of assembly type elbow connector, which can effectively slow down the wear of the cable caused by the internal structure of the connector when the cable is pulled by external force, thereby protecting the cable in the connector, avoiding or delaying the wear of the cable, and prolonging the service life of the elbow connector.

[0005] To solve the above technical problems, the utility model adopts a technical scheme as follows:

[0006] The core wire protection structure of the assembly type elbow connector comprises an L-shaped metal shielding pipe and a rubber core embedded in the first arm of the metal shielding pipe, and one or more than one terminal is embedded in the rubber core.

[0007] The rubber core is connected with a core wire at one end, and the other end of the core wire passes through the metal shielding pipe and is pulled out from the second arm.

[0008] The rubber core is connected with a core wire at one end, and the other end of the core wire passes through the metal shielding pipe and is pulled out from the second arm.

[0009] As a further elaboration of the above technical solutions:

[0010] In the above technical solutions, the metal shielding pipe is composed of a plurality of metal pipes connected in sequence, including a positioning ring, a connecting ring, an adapter ring and a guide ring arranged in sequence along the axial direction, the positioning ring is provided with the rubber core inside, the adapter ring is L-shaped structure and its two ends extend the inner wall of the connecting ring and the guide ring respectively, the guide ring is a truncated cone structure and its inside is provided with the rubber sleeve; the inner wall of the positioning ring is further provided with a first clamping ring outside the rubber core, one end of the first clamping ring extends to the inner wall of the connecting ring, the inner wall of the adapter ring is further embedded with a second clamping ring, one end of the second clamping ring extends to the side of the rubber sleeve.

[0011] In the above technical solutions, the inner wall and / or outer wall and / or end of the positioning ring, the connecting ring, the adapter ring and the guide ring is provided with a matching locking positioning structure, and the adjacent two metal rings are screwed or clamped or riveted.

[0012] In the above technical solutions, the first clamping ring and the second clamping ring are both metal rings.

[0013] In the above technical solutions, further comprising a clamping assembly, the clamping assembly comprises a first adjusting ring and a second adjusting ring, the first adjusting ring is a C-shaped metal ring and is matched and clamped on the outer wall of the first clamping ring, the second adjusting ring is a ring-shaped clamping claw structure, a positioning end and a clamping claw end are arranged on the second adjusting ring along the axial direction, a plurality of clamping claws arranged in the circumferential direction and extending in the axial direction and each being a cantilever beam structure are formed on the clamping claw end, each of the clamping claws is matched and clamped on the inner wall of the guide ring and is arranged outside the rubber sleeve, and the positioning end abuts against the second clamping ring.

[0014] In the above technical solutions, further comprising a sealing assembly, the sealing assembly comprises a first sealing ring, a second sealing ring and a third sealing ring, the first sealing ring is sleeved outside the plastic support pipe and its two ends abut against the first clamping ring and the connecting ring respectively; the second sealing ring is embedded in the end of the adapter ring and one end thereof abuts against the end of the connecting ring; the third sealing ring is embedded on the outer wall of the positioning end and abuts against the inner wall of the adapter ring.

[0015] Compared with the prior art, the utility model has the advantages that by being provided with the plastic support pipe and the rubber pipe outside the cable in the connector, the abrasion of the cable by the structure in the connector when the cable is pulled by external force can be effectively slowed down, the cable in the connector is protected, the abrasion of the cable is avoided or delayed, and the service life of the elbow connector is prolonged, and the structure is simple and the assembly is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1is a structural schematic diagram of the embodiment;

[0017] Figure 2 is an exploded structural schematic diagram of the embodiment;

[0018] Figure 3 is a sectional structural schematic diagram of the embodiment.

[0019] In the figure: 100, metal shielding tube; 110, first arm; 120, second arm; 200, rubber core; 300, wiring terminal; 10, plastic supporting tube; 20, rubber sleeve; 30, positioning ring; 40, connecting ring; 50, adapter ring; 60, guide ring; 70, first clamping ring; 80, second clamping ring; 90, second adjusting ring; 91, positioning end; 92, clamping jaw end; 1, first adjusting ring; 2, clamping jaw; 3, first sealing ring; 4, second sealing ring; 5, third sealing ring. DETAILED DESCRIPTION

[0020] The utility model will be made further detailed description in combination with the drawings.

[0021] The embodiments described with reference to the drawings are exemplary and are intended to be used for explaining the present application and cannot be understood as a limitation of the present application. In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature with respect to the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature with respect to the second feature include the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature with respect to the second feature include the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0022] As Figures 1-2 shown, the core protection structure of the assembled elbow connector includes an L-shaped metal shielding tube 100 and a rubber core 200 embedded in the first arm 110 thereof, and one or more wiring terminals 300 are embedded in the rubber core 200, one end of each wiring terminal 300 is electrically connected with a core wire, and the other end of the core wire passes through the metal shielding tube 100 and exits from the second arm 120 thereof; further comprising:

[0023] The plastic support tube 10 is detachably fixed at one end of the rubber core 200 and matches the inner wall of the first arm 110, and the end of the plastic support tube 10 towards the second arm 120 is formed with an inclined cut edge 11 which matches the inner wall of the second arm 120, and the end of the cut edge 11 is a smooth arc surface.

[0024] The rubber sleeve 20 is detachably fixed at the end of the inner wall of the second arm 120, and the end of the rubber sleeve 20 is a smooth arc surface.

[0025] After assembly, the cable connected with the terminal 300 passes through the plastic support tube 10 into the second arm 120, and finally passes out from the rubber sleeve 20. In use, when the external line is pulled, the cable or the core in the connector contacts the smooth arc surface on the rubber sleeve 20 and the cut edge 11 of the plastic support tube 10, and the friction between them is small, which can effectively slow down the wear of the cable by the structure in the connector and ensure the stability of the data transmission of the cable.

[0026] In this embodiment, the rubber sleeve 20 is a silicone rubber sleeve which has strong flexibility and can better protect the cable.

[0027] As shown in Figure 2 The metal shielding tube 100 is composed of a plurality of metal tubes connected in sequence, including a positioning ring 30, a connecting ring 40, an adapter ring 50 and a guide ring 60 arranged in sequence along the axial direction, the rubber core 200 is arranged in the positioning ring 30, the adapter ring 50 is L-shaped and extends to the inner walls of the connecting ring 40 and the guide ring 60 at both ends, the guide ring 60 is a truncated cone structure and the rubber sleeve 20 is arranged in the guide ring 60; the first clamping ring 70 is arranged on the inner wall of the positioning ring 30 outside the rubber core 200, one end of the first clamping ring 70 extends to the inner wall of the connecting ring 40, the second clamping ring 80 is arranged on the inner wall of the adapter ring 50, and one end of the second clamping ring 80 extends to the side of the rubber sleeve 20.

[0028] It can be understood that the first clamping ring 70 can tightly clamp the rubber core 200 and the plastic support tube 10 on the inner wall of the first arm 110, and the second clamping ring 80 can press the rubber sleeve 20 against the end inner wall of the second wall 120, so that the rubber core 200 and the rubber sleeve 20 form an interference fit with the metal shielding tube 100, which can not only keep them stable in the connector, but also avoid water vapor or particles in the air from entering the connector to corrode or wear the exposed core, further protecting the cable.

[0029] In the embodiment, the inner wall and / or the outer wall and / or the end of the positioning ring 30, the connecting ring 40, the adapter ring 50 and the guide ring 60 are provided with matched locking positioning structures, and the two adjacent metal rings are fixed by screwing or clamping or riveting; the first clamping ring 70 and the second clamping ring 80 are metal rings. The plurality of independent metal rings facilitate production and assembly, and after being fixed in pairs, a stable metal barrier can be formed around the rubber core, the wire terminal 300, to avoid external electromagnetic interference or affect the internal cable and the wire core, and ensure the stability of signal transmission.

[0030] As shown in Figures 2-3 , the connector further comprises a clamping assembly, the clamping assembly comprises a first adjusting ring 1 and a second adjusting ring 90, the first adjusting ring 1 is a C-shaped metal ring and is matched and clamped on the outer wall of the first clamping ring 70, the second adjusting ring 90 is a ring-shaped clamping jaw structure, a positioning end 91 and a clamping jaw end 92 are arranged on the second adjusting ring 90 in the axial direction, a plurality of clamping jaws 2 which are arranged in the circumferential direction and extend in the axial direction and are in the form of cantilever beams are formed on the clamping jaw end 92, each clamping jaw 2 is matched and clamped on the inner wall of the guide ring 60 and is arranged around the rubber sleeve 20, and the positioning end 91 abuts against the second clamping ring 80.

[0031] In the embodiment, as shown in Figures 2-3 , the connector further comprises a sealing assembly, the sealing assembly comprises a first sealing ring 3, a second sealing ring 4 and a third sealing ring 5, the first sealing ring 3 is sleeved around the plastic support pipe 10 and abuts against the first clamping ring 70 and the connecting ring 40 at the two ends, respectively; the second sealing ring 4 is embedded in the end of the adapter ring 50 and abuts against the end of the connecting ring 40 at one end; and the third sealing ring 5 is embedded on the outer wall of the positioning end 91 and abuts against the inner wall of the adapter ring 50. In the embodiment, all the sealing rings are soft rubber sealing rings.

[0032] It can be understood that the clamping assembly can further balance the manufacturing and assembly errors of each structure, and tightly connect the plastic support pipe 10 and the rubber pipe 20 with the metal shielding pipe 100; and the sealing assembly can ensure the tightness and airtightness of the connection of each structure, avoid foreign matters from entering the connector, and ensure that the internal structure of the connector is always in a stable connection state when the connector is in a moving state.

[0033] The plastic support pipe 10 and the rubber pipe 20 arranged around the internal cable of the connector can effectively slow down the wear of the cable caused by the connection of the internal structures of the connector when the cable is pulled by external force, thereby achieving the purposes of protecting the internal cable of the connector, avoiding or delaying the wear of the cable, and prolonging the service life of the elbow connector.

[0034] The above is not intended to limit the technical scope of the utility model in any way, and any modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still belong to the technical scope of the utility model.

Claims

1. A core protection structure of an assembled elbow connector, comprising an L-shaped metal shielding tube and a rubber core embedded in a first arm of the metal shielding tube, a plurality of wiring terminals are embedded in the rubber core, one end of each of the wiring terminals is electrically connected with a core wire, the other end of the core wire passes through the metal shielding tube and out of a second arm of the metal shielding tube; characterized in that, Also include: A plastic support tube is detachably and fixedly arranged at one end of the rubber core and matched and embedded in the inner wall of the first arm, and the end of the plastic support tube is formed with an inclined cutting edge towards the end of the second arm, the cutting edge is matched and embedded in the inner wall of the second arm, and the end of the cutting edge is a smooth arc surface; The rubber sleeve is detachably and fixedly arranged on the end wall of the second arm, and the end surface of the rubber sleeve is a smooth arc surface.

2. The core protection structure of an assembled elbow connector according to claim 1, wherein, The metal shielding tube is composed of a plurality of metal tubes connected in sequence, including a positioning ring, a connecting ring, an adapter ring and a guide ring arranged in sequence along the axial direction, the rubber core is arranged in the positioning ring, the adapter ring is L-shaped structure and its two ends extend the inner wall of the connecting ring and the guide ring respectively, the guide ring is a truncated cone structure and the rubber sleeve is arranged in the guide ring; The inner wall of the positioning ring is further provided with a first clamping ring around the rubber core, one end of the first clamping ring extends to the inner wall of the connecting ring, a second clamping ring is embedded in the inner wall of the adapter ring, and one end of the second clamping ring extends to the side of the rubber sleeve.

3. The core protection structure of an assembled elbow connector according to claim 2, wherein, The inner wall and / or outer wall and / or end of the positioning ring, connecting ring, adapter ring and guide ring is provided with a matched locking positioning structure, and the adjacent two metal rings are screwed or clamped or riveted.

4. The assembled elbow connector's core protection structure according to claim 2, wherein, The first clamping ring and the second clamping ring are metal rings.

5. An assembled elbow connector's core protection structure according to any one of claims 2-4, characterized in that, It also includes a clamping assembly, the clamping assembly includes a first adjusting ring and a second adjusting ring, the first adjusting ring is a C-shaped metal ring and is matched and clamped on the outer wall of the first clamping ring, the second adjusting ring is a ring-shaped clamping claw structure, and the positioning end and the clamping claw end are arranged on the second adjusting ring along the axial direction, the clamping claw end is formed with a plurality of clamping claws arranged along the circumferential direction and extending along the axial direction, and each clamping claw is a cantilever beam structure, each clamping claw is matched and clamped on the inner wall of the guide ring and arranged around the rubber sleeve, and the positioning end abuts against the second clamping ring.

6. The assembled elbow connector's core protection structure according to claim 5, wherein, It also includes a sealing assembly, the sealing assembly includes a first sealing ring, a second sealing ring and a third sealing ring, the first sealing ring is arranged around the plastic support tube and its two ends abut against the first clamping ring and the connecting ring respectively; The second sealing ring is embedded in the end of the adapter ring and one end of the second sealing ring abuts against the end of the connecting ring; The third sealing ring is embedded on the outer wall of the positioning end and abuts against the inner wall of the adapter ring.

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