阅读说明：本技术 一种连接器尾部附件 (Connector tail accessory ) 是由 唐继 蒋芳芳 赵冬 于 2021-09-23 设计创作，主要内容包括：本发明公开了一种连接器尾部附件,包括尾螺母,尾螺母的后端安装有芯线固持装置,尾螺母的前端活动套装有锁紧器,且锁紧器的外缘与尾螺母的内腔通过密封件密封,锁紧器的前端固定连接有线缆,且线缆的芯线穿过锁紧器并被芯线固持装置固线。本发明的有益效果是：通过对压圈施加周向的外力,当锁紧器克服与尾螺母之间的摩擦力后,就可实现锁紧器与尾螺母的相对转动,从而使得线缆相对尾螺母转动,因此,当连接器与设备通过线缆连接后,线缆发生扭曲,无需对线缆进行拆卸,对线缆施加周向外力使得线缆转动,从而避免线缆扭曲。(The invention discloses a connector tail accessory which comprises a tail nut, wherein a core wire fixing device is installed at the rear end of the tail nut, a locker is movably sleeved at the front end of the tail nut, the outer edge of the locker is sealed with the inner cavity of the tail nut through a sealing element, a cable is fixedly connected to the front end of the locker, and the core wire of the cable penetrates through the locker and is fixed by the core wire fixing device. The invention has the beneficial effects that: through applying circumferential external force to the clamping ring, after the friction between locker overcome and the tail nut, just can realize the relative rotation of locker and tail nut to make the relative tail nut of cable rotate, consequently, pass through the cable with equipment when the connector and be connected the back, the distortion takes place for the cable, need not to dismantle the cable, and it makes the cable rotate to apply circumferential external force to the cable, thereby avoids the cable distortion.)

1. A connector tail accessory, comprising: the core wire fixing device is installed at the rear end of the tail nut, a locker is movably sleeved at the front end of the tail nut, the outer edge of the locker is sealed with the inner cavity of the tail nut through a sealing element, a cable is fixedly connected to the front end of the locker, and the core wire of the cable penetrates through the locker and is fixed by the core wire fixing device.

2. A connector tail attachment as claimed in claim 1, wherein: a plurality of sealing grooves are formed in the inner cavity of the tail nut, second sealing rings are installed in the sealing grooves, and the inner rings of the second sealing rings are sleeved on the outer edge of the locker.

3. A connector tail accessory as claimed in claim 2, wherein: the locking device is of a hollow structure and is provided with multiple steps, a limiting ring is arranged in an inner cavity of the tail nut, a first step of the locking device is clamped at the rear end of the tail nut, the first step of the locking device is connected with a second step of the locking device, and an inner ring of a second sealing ring is sleeved on the second step.

4. A connector tail attachment as claimed in claim 3, wherein: the front of the second step of the locker is provided with a fourth step, the fourth step is sleeved with a pressing ring, and the outer sheath of the cable is in crimping connection between the pressing ring and the fourth step.

5. The connector tail accessory of claim 4, wherein: and a first barb is arranged on the fourth step, and a second barb is arranged on the inner cavity of the pressing ring.

6. The connector tail accessory of claim 4, wherein: and a third step is further arranged between the fourth step and the second step of the locker, a fourth annular groove is formed in the third step, and a clamping ring is arranged at the end face of the rear end of the pressing ring and clamped in the fourth annular groove.

7. The connector tail accessory according to any one of claims 1 to 6, wherein: the core wire fixing device comprises a connecting ring, a wire sealing body and a locking nut, wherein the connecting ring is of a hollow structure, the rear end of the connecting ring is connected with the locking nut, and the wire sealing body is installed in an inner cavity at the rear end of the connecting ring and is locked by the locking nut installed in the inner cavity at the rear end of the connecting ring.

8. The connector tail accessory of claim 7, wherein: the rear end face of the wire sealing body is provided with a first conical part, the first conical part is located in an inner cavity of the locking nut, and a cable shielding layer is in compression joint between the first conical part and the locking nut.

9. The connector tail accessory of claim 7, wherein: the front end of the connecting ring is an annular column, a first limiting block protruding outwards in the radial direction is arranged on the annular column, and a second limiting block capable of interfering with the first limiting block in the circumferential direction is arranged on the rear end face of the locker.

10. A connector tail accessory according to claim 9, wherein: the go-between still includes the polygon prism at middle part and the linkage segment of rear end, the internal thread of being connected with lock nut is seted up to the inner chamber of linkage segment, the go-between still is provided with the external screw thread section, the external screw thread section is located the polygon prism with between the annular post, first annular groove has been seted up on the go-between, first annular groove is located the external screw thread section with between the polygon prism, the external screw thread section with tail nut threaded connection, just the go-between with it is sealed through the first sealing washer of installing in first annular groove between the tail nut.

Technical Field

The invention relates to the technical field of electronic communication, in particular to a connector tail accessory.

Background

In the connector tail accessory in the current market, after a cable is fixed, the tail accessory is fixed and can not rotate. After the cable of the connector is connected with the used equipment, if the cable is twisted or the installation position of the connector is not proper, and the direction of the connector is required to be adjusted, the cable of the connector needs to be disassembled and reassembled and fixed, particularly, the cable or the multi-core cable with the conveying distance smaller than 60cm and the diameter larger than that of the cable or the multi-core cable has large bending radius and large torsion moment, so that the installation between the equipment and the connector is inconvenient, and even if the equipment and the connector are connected, the service life of the cable can be influenced when the cable is in a twisted state for a long time.

Disclosure of Invention

The present invention is directed to overcoming the disadvantages of the prior art and providing a connector tail attachment.

The purpose of the invention is realized by the following technical scheme: the utility model provides a connector afterbody annex, includes the tail nut, and the rear end of tail nut is installed heart yearn fixing device, and the front end activity cover of tail nut is equipped with the locker, and the outer fringe of locker passes through the sealing member with the inner chamber of tail nut and seal, and the front end fixedly connected with cable of locker, and the heart yearn of cable passes the locker and is fixed the line by heart yearn fixing device.

Optionally, a plurality of sealing grooves are formed in the inner cavity of the tail nut, second sealing rings are installed in the sealing grooves, and the inner rings of the second sealing rings are sleeved on the outer edge of the locker.

Optionally, the locking device is of a hollow structure and is provided with multiple steps, a limiting ring is arranged in an inner cavity of the tail nut, a first step of the locking device is clamped at the rear end of the tail nut, the first step of the locking device is connected with a second step of the locking device, and an inner ring of the second sealing ring is sleeved on the second step.

Optionally, a fourth step is arranged in front of the second step of the locker, a pressing ring is sleeved on the fourth step, and the outer sheath of the cable is in crimping connection between the pressing ring and the fourth step.

Optionally, a first barb is arranged on the fourth step, and a second barb is arranged on the inner cavity of the pressing ring.

Optionally, a third step is further arranged between the fourth step and the second step of the locking device, a fourth annular groove is formed in the third step, a clamping ring is arranged at the end face of the rear end of the pressing ring, and the clamping ring is clamped in the fourth annular groove.

Optionally, the core wire fixing device includes a connection ring, a wire sealing body and a locking nut, the connection ring is of a hollow structure, the rear end of the connection ring is connected with the locking nut, and the wire sealing body is installed in an inner cavity at the rear end of the connection ring and is locked by the locking nut installed in the inner cavity at the rear end of the connection ring.

Optionally, the rear end face of the wire sealing body is provided with a first conical part, the first conical part is located in an inner cavity of the locking nut, and a cable shielding layer is crimped between the first conical part and the locking nut.

Optionally, the front end of the connecting ring is an annular column, a first limiting block protruding radially outwards is arranged on the annular column, and a second limiting block capable of interfering circumferentially with the first limiting block is arranged on the rear end face of the locker.

Optionally, the connection ring further includes a polygon prism at the middle portion and a connection section at the rear end, an inner thread connected with the locking nut is provided in an inner cavity of the connection section, the connection ring is further provided with an external thread section, the external thread section is located between the polygon prism and the annular column, a first annular groove is provided on the connection ring, the first annular groove is located between the external thread section and the polygon prism, the external thread section is in threaded connection with the tail nut, and the connection ring and the tail nut are sealed through a first sealing ring installed in the first annular groove.

The invention has the following advantages: according to the tail accessory, the pressing ring is applied with circumferential external force, when the locker overcomes the friction force between the locker and the tail nut, the locker and the tail nut can rotate relatively, so that the cable rotates relative to the tail nut, therefore, after the connector is connected with equipment through the cable, the cable is twisted, the cable does not need to be disassembled, and the cable is rotated by applying circumferential external force to the cable, so that the cable is prevented from being twisted.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic cross-sectional view A-A of FIG. 2;

FIG. 4 is an exploded view of a portion of the components of the present invention;

FIG. 5 is a schematic view showing the relative positions of the connection ring and the locking device;

FIG. 6 is a schematic view of the locking device;

fig. 7 is a schematic structural view of a wire sealing body;

FIG. 8 is a cross-sectional schematic view of the tail nut;

FIG. 9 is a schematic cross-sectional view of a clamping ring;

in the figure, 1-locking nut, 2-wire sealing body, 3-connecting ring, 4-first sealing ring, 5-tail nut, 6-pressing ring, 7-locking device, 8-cable, 9-second sealing ring, 10-third sealing ring, 21-first conical part, 22-second conical part, 23-sinking groove, 31-polygon prism, 32-external thread section, 33-annular column, 34-first limiting block, 35-first annular groove, 36-second annular groove, 37-connecting section, 51-limiting ring, 52-sealing groove, 71-first stage step, 72-second stage step, 73-third stage step, 74-fourth stage step, 75-second limiting block, 76-third annular groove, 77-conical surface, 78-fourth annular groove, 79-first barb, 61-snap ring, 62-second barb.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, 2 and 3, a connector tail accessory comprises a tail nut 5, the direction of an outer sheath of a cable 8 is front, the direction of an exposed core of the cable 8 is rear, a core wire holding device is installed at the rear end of the tail nut 5, a locker 7 is movably sleeved at the front end of the tail nut 5, the outer edge of the locker 7 is sealed with the inner cavity of the tail nut 5 through a sealing member, a cable 8 is fixedly connected at the front end of the locker 7, the core wire of the cable 8 passes through the locker 7 and is fixed by the core wire holding device, when the connector, the cable 8 and the equipment are fixed, if the cable is in a twisted state, the circumferential angle of the cable 8 needs to be adjusted, at this time, an operator applies a circumferential external force to the cable 8 to enable the locker 7 to rotate relative to the tail nut 5, thereby preventing the cable 8 from being twisted and ensuring the service life of the cable, and in this embodiment, to rotate the locking device 7, only the friction between the sealing member and the tail nut 5 needs to be overcome, so that the locking device 7 can conveniently rotate relative to the tail nut 5.

In this embodiment, as shown in fig. 3 and 8, a plurality of sealing grooves 52 are formed in the inner cavity of the tail nut 5, the sealing member is a second sealing ring 9, the second sealing ring 9 is an O-ring, the second sealing ring 9 is installed in the sealing groove 52, the inner ring of the second sealing ring 9 is sleeved on the outer edge of the locker 7, further, the sealing groove 52 is located at the front end of the inner cavity of the tail nut 5, and the two sealing grooves 52 are arranged side by side at intervals.

In this embodiment, as shown in fig. 4 and 6, the locker 7 is a hollow structure, the core wire of the cable 8 passes through the cavity of the locker 7, and the locker 7 has multiple steps, further, the locker 7 has four steps, and the diameters of the four steps decrease from back to front, as shown in fig. 8, the stop ring 51 is disposed in the inner cavity of the tail nut 5, the first step 71 of the locker 7 is clamped at the back end of the tail nut 5, that is, the diameter of the first step 71 is greater than the diameter of the stop ring 51 and smaller than the diameter of the tail nut 5, the first step 71 of the locker 7 is connected with the second step 72 of the locker 7, the inner ring of the second seal ring 9 is sleeved on the second step 72, when the locker 7 is installed, the second seal ring 9 is installed in the seal groove 52, then the front end of the locker 7 passes through the back end of the tail nut 5, so that the front end of the locker 7 passes through the tail nut 5, preferably, the locking device 7 needs to abut against the front end face of the first step 71 on the limit ring 51 during the insertion process, at this time, the inner ring of the second seal ring 9 is sleeved on the second step 72, and because the second seal ring 9 and the second step 72 have friction, the locking device 7 cannot rotate relative to the tail nut 5 when not receiving circumferential force, and similarly, when the locking device 7 does not receive axial force, the locking device 7 cannot axially move relative to the tail nut 5, that is, the relative position relationship between the locking device 7 and the tail nut 5 is fixed by the second seal ring 9.

In the present embodiment, as shown in fig. 4 and 6, a fourth step 74 is provided in front of the second step 72 of the locker 7, a clamping ring 6 is sleeved on the fourth step 74, an outer sheath of the cable 8 is crimped between the clamping ring 6 and the fourth step 74, further, a first barb 79 is provided on the fourth step 74, as shown in fig. 9, a second barb 62 is provided on an inner cavity of the clamping ring 6, the first barb 79 is formed by a plurality of sections of cylinders with inclined angles, the second barb 62 is formed by a plurality of sections of grooves with inclined angles, the first barb 79 and the second barb 62 can tightly clasp the outer sheath of the cable 8, so as to prevent the cable 8 from falling off, in the present embodiment, a third step 73 is further provided between the fourth step 74 and the second step 72 of the locker 7, a fourth annular groove 78 is provided on the third step 73, a snap ring 61 is provided at a rear end face of the clamping ring 6, the snap ring 61 is snapped in the fourth annular groove 78, furthermore, a conical surface 77 is arranged at the joint of the second step 72 and the third step 73, the conical surface 77 has a guiding function, the snap ring 61 can be guided to enter the fourth annular groove 78, meanwhile, in the inserting process of the locker 7, the second sealing ring 9 can be guided to enter the second step 72 by the conical surface 77, the pressing ring 6 is in a cylindrical structure in the initial state, after the pressing ring 6 is pressed, the outer surface of the pressing ring 6 is provided with a plurality of annularly distributed polygonal surfaces, the polygonal surfaces are convenient for clamping by a tool, the pressing ring 6 is convenient to rotate, so that when the angle of the cable 8 is adjusted, the pressing ring 6 is clamped by the tool, then a circumferential force is applied to the pressing ring 6, the locker 7, the pressing ring 6 and the cable 8 are rotated, when the pressing ring is pressed, the outer sheath at the rear end of the cable 8 is stripped, the shielding layers on the core wire and the core wire are leaked, and then the outer sheath of the cable 8 is stripped, then, the core wire is inserted into the front end of the clamping ring 6 and penetrates out of the rear end of the locker 7, the stripped outer sheath is located between the clamping ring 6 and the fourth step 74, and then the clamping ring 6, the outer sheath and the fourth step 74 are pressed tightly by a crimping device, so that the locker 7, the cable 8 and the clamping ring 6 form a whole, and synchronous rotation is realized.

In this embodiment, as shown in fig. 3 and 4, the core wire holding device includes a connection ring 3, a wire sealing body 2 and a locking nut 1, the connection ring 3 is hollow, the rear end of the connection ring 3 is connected with the locking nut 1, the wire sealing body 2 is installed in the inner cavity of the rear end of the connection ring 3 and is locked by the locking nut 1 installed in the inner cavity of the rear end of the connection ring 3, in this embodiment, the connection ring 3 has a polygonal column 31 in the middle, an annular column 33 in the front, a connection section 37 in the rear, and an external threaded section 32 in the region between the annular column 33 and the polygonal column 31, that is, the external threaded section 32 is located between the polygonal column 31 and the annular column 33, the inner cavity of the connection section 37 is provided with an internal thread connected with the locking nut 1, the locking nut 1 is provided with an external thread, and the external thread connected with the connector is further provided on the outer surface of the connection section 37, the inner chamber of go-between 3 is the ladder through-hole, and the aperture of ladder through-hole is in the front, and the macropore of ladder through-hole is at the back, and the body of sealing 2 is then locked in the macropore of ladder through-hole by lock nut 1, and the body of sealing 2 is the rubber spare, and at 1 locking in-process of lock nut, the body of sealing 2 is then compressed to the heart yearn of fixed cable 8, consequently, this connector afterbody annex then has dual solidus structure.

In this embodiment, as shown in fig. 7, the rear end surface of the wire-sealing body 2 is provided with a first tapered portion 21, further, the rear end surface of the wire-sealing body 2 is provided with a sunken groove 23, and the sunken groove 23 is provided with a first tapered portion 21 protruding backward in the axial direction, so that the rear end surface of the wire-sealing body 2 has an annular groove, when the locking nut 1 locks the wire-sealing body 2, the first tapered portion 21 is located in the inner cavity of the locking nut 1, and a cable shielding layer is crimped between the first tapered portion 21 and the locking nut 1, further, the front end surface of the locking nut 1 is provided with an outer chamfer, when the locking nut 1 locks, the front end surface of the locking nut 1 contacts with the bottom of the sunken groove 23, when the cable shielding layer on the outer surface of the core wire is folded and evenly distributed along the circumferential direction of the first tapered portion 21, and the end of the cable shielding layer is located in the annular groove, when the locking nut 1 locks, the cable shielding layer is then evenly laminated on lock nut 1's inner chamber, thereby make the afterbody annex have shielding effect, and compare and arrange the structure between two metalworks in the shielding layer, this cable shielding layer is in between metalwork and the rubber spare, the shielding layer is difficult for the rupture, the shielding layer has been protected, preceding terminal surface at the sealing line body 2 is provided with second toper portion 22, after sealing line body 2 is locked by lock nut 1, second toper portion 22 is located the aperture of ladder through-hole, second toper portion 22 has certain axial positioning effect, during the installation, toper portion 22 enters into the aperture of ladder through-hole earlier, realize preliminary axial positioning, thereby make the sealing line body 22 locked the back, the axial precision of the sealing line body 22 and go-between 3.

In this embodiment, as shown in fig. 4, 5 and 6, a first stopper 34 protruding radially outward is disposed on the annular column 33 at the front end of the connection ring 3, and a second stopper 75 capable of interfering with the first stopper 34 circumferentially is disposed on the rear end surface of the locking device 7, that is, the second stopper 75 can rotate within the circumference of the first stopper 34, and after the second stopper 75 contacts the first stopper 34, the second stopper 75 cannot rotate continuously along the current rotation direction, so that the rotation of the locking device 7 is less than 360 °, and the specific rotation angle of the locking device 7 is determined by the sizes of the first stopper 34 and the second stopper 75, which can be designed according to actual requirements, further, the first stopper 34 is an arc-shaped block, the second stopper 75 is also an arc-shaped block, when the locking device 7 rotates, the core of the cable 8 will rotate by less than 360 °, and the outer sheath of the cable 8 is corrected, the cable 8 is not twisted any more, the wire core is thinner than the outer sheath, and a margin is left, so that the rotation of the cable 8 can be less than 360 degrees, and the wire core is not prevented from being twisted inside the connector tail accessory without limitation, so that the design of the first limiting block 34 and the second limiting block 75 ensures that the locker 7 can rotate in the forward direction or the reverse direction, but the wire core is less than 360 degrees, thereby achieving the function of adjusting the angle of the equipment and preventing the wire core from being twisted without limitation.

In this embodiment, as shown in fig. 4, the connection ring 3 is provided with a first annular groove 35, the first annular groove 35 is located between the external thread section 32 and the polygon prism 31, the polygon prism 31 is a hexagonal prism to facilitate the installation of the connection ring 3, after the connection ring 3 is installed, the external thread section 32 is in threaded connection with the tail nut 5, and the connection ring 3 and the tail nut 5 are sealed by a first sealing ring 4 installed in the first annular groove 35, further, the connection ring 3 is provided with a second annular groove 36, the second annular groove 36 is located between the connection section 37 and the polygon prism 31, and when the connection ring 3 is locked with the connector, the sealing ring is placed in the second annular groove 36, so as to seal between the connector and the connection ring 3.

In this embodiment, as shown in fig. 3, 4 and 6, a third annular groove 76 is further formed on the rear end surface of the locker 7, a third seal ring 10 is installed in the third annular groove 76, after the connecting ring 3 is locked, the front end surface of the connecting ring 3 presses the third seal ring 10, that is, the annular column 33 presses the third seal ring 10, so that the axial displacement of the locker 7 is limited, and the third seal ring 10 is pressed by the annular column 33, so that the third seal ring 10 is deformed, thereby increasing the friction force between the locker 7 and the connecting ring 3, further improving the stability of the locker 7, and when the locker 7 needs to rotate, the friction force between the second seal ring 9 and the second step 72 and the friction force between the third seal ring 10 and the connecting ring 3 need to be overcome.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.