CN112886365B

CN112886365B - Cable connection method

Info

Publication number: CN112886365B
Application number: CN202110059370.2A
Authority: CN
Inventors: 吴光烈; 沈家钦; 陈仕银
Original assignee: Airsafe Airport Equipment Co ltd
Current assignee: Airsafe Airport Equipment Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2023-05-05
Anticipated expiration: 2041-01-15
Also published as: CN112886365A

Abstract

The invention relates to a cable connection method. The cable connecting section passes through the plug head and is inserted into the accommodating cavity, and the body is abutted with the plug head; infusing the adhesive body into the accommodating cavity through the infusion channel until the adhesive body completely occupies the space in the accommodating cavity and is partially filled into the ventilation retraction sealing structure; the volume of the bonding body is reduced and a gap is formed in the accommodating cavity in the process of cooling and solidifying from a flowing state to a solid state, and at the moment, the bonding body in the ventilation and retraction sealing structure is retracted into the accommodating cavity to fill the gap generated by the shrinkage of the bonding body in the cooling and solidifying process; and installing different cable connection sections to be connected to different connectors respectively, and connecting different connectors through conducting pieces to realize connection of different cables. The invention can not generate gaps and poor insulation when in use, is easy to assemble and has stable insulation resistance in the use process.

Description

Cable connection method

Technical Field

The invention relates to the technical field of airport navigation aid equipment, in particular to a cable connection method.

Background

The airport navigation light loop is powered by a constant current power supply to ensure that the brightness of all lamps in the loop is consistent. Therefore, airport navigation light is supplied in series, and in order to ensure that the circuit is broken after the lamp bulb is damaged and opened, the power supply circuit is connected with a plurality of isolation transformers, and the lamp works on the secondary side. A large number of cable connectors are required to connect the circuit to the isolation transformer.

According to the different size of the airport, the distance between the lamps in the loops and the lamps is different from 7.5 to 120, and the number of lamps in each loop is also different (at most 255). Since the distance between the lamps in each loop and the lamps are different, the cable length of the lamplight loop of the airport cannot be determined in advance, and all cables and cable connectors must be manufactured manually on site. Typically a circuit has hundreds (up to 510) of cable connectors, and any cable connector in the circuit having a quality problem directly affects the transmission quality of the entire circuit.

The primary cable connector for airport navigation light loop has two kinds of field assembling crimping and field assembling heat shrinkage. Because the cable adopted by the airport navigation light loop in China has thicker diameter and high bending strength, the assembled cable connector is easy to deform to generate gaps when in bending use, and poor insulation can be caused in water or in a humid environment; the heat-shrinkable cable connector needs multiple layers of various insulating materials during assembly and is too complicated during assembly, so that the quality of the product cannot be ensured. In addition, the cable connector causes a decrease in insulation resistance in use, resulting in a low insulation resistance of the light circuit.

Disclosure of Invention

Accordingly, it is necessary to provide a cable connection method for solving the problems that insulation failure is likely to occur during cable connection, assembly is troublesome, and insulation resistance is likely to decrease during use.

A method of cable connection comprising:

sequentially peeling off the outer skins of the cable connection sections in steps, and enabling the cable connection sections to pass through the installation channels of the plugs; installing a shielding grounding wire on a shielding layer of the cable connecting section, connecting a conducting piece to the end part of the cable connecting section by a cold pressing method, inserting the cable connecting section into the accommodating cavity, and butting the body with the plug head;

the adhesive body is infused into the accommodating cavity through the infusion channel, the adhesive body can be filled between the outer peripheral surface of the cable connecting section and the accommodating cavity as well as between the accommodating cavity and the mounting channel after entering the accommodating cavity, the adhesive body gradually occupies the space of the accommodating cavity along with the filling, and air in the accommodating cavity is continuously extruded outwards through the ventilation retraction sealing structure until the adhesive body completely occupies the space in the accommodating cavity and is partially filled into the ventilation retraction sealing structure;

the volume of the bonding body is reduced and a gap is formed in the accommodating cavity in the process of solidifying from a flowing state to a solid state, and at the moment, the bonding body in the ventilation retraction sealing structure is retracted into the accommodating cavity to fill the gap generated by the shrinkage of the bonding body in the solidification process;

and installing different cable connection sections to be connected to different connectors respectively, and connecting different connectors through conducting pieces to realize connection of different cables.

The cable connection method has at least the following beneficial technical effects:

(1) In this embodiment, the bonding body can be filled in all between the outer peripheral surfaces of holding cavity, installation passageway and cable junction section, and the bonding is firm, can not have the space, even crooked also can not produce the clearance between holding cavity and cable junction section, can not take place the poor condition of insulation in aquatic or humid environment use.

(2) According to the embodiment, different cable connecting sections are respectively and rapidly installed to different connectors, and then different connectors are connected through the conducting piece to realize the electric connection of different cables, so that the installation operation of the heat-shrinkable cable connector is more convenient, and multiple layers of insulating materials are not adopted in the installation and connection process.

(3) It has been found that air is liable to remain in various sealing operations of the cable connector, and that the volume of the adhesive body is reduced when the adhesive body is solidified from a liquid state to a solid state, and a void is formed in the connector, and the adhesive body becomes a factor causing a decrease in insulation resistance in use, so that the insulation resistance of the lamp circuit is low and the use effect is poor. After the connector is adopted, air in the accommodating cavity can be discharged through the ventilation retraction sealing structure in the process of infusing the adhesive body, so that the air discharge is smooth, and the generation of a gap can be avoided; even if a gap is generated in the accommodating cavity in the process that the bonding body is cooled and solidified into a solid state, the bonding body in the ventilation retraction sealing structure can retract into the accommodating cavity to fill the gap generated by the shrinkage of the bonding body in the cooling and solidification process; meanwhile, the adhesive body in the ventilation retraction sealing tube has a plugging effect after solidification, so that external water vapor can be prevented from entering the accommodating cavity through the adhesive body, the electric conductivity is stable, any cavity cannot be generated in the accommodating cavity of the final connector, insulation can be maintained in the long-term use process, and the problem that the insulation resistance of a lamplight loop of an airport is low is fundamentally solved. The connectors are connected through the conducting piece, so that the connection performance is good, and the transmission quality of the whole loop is remarkably improved.

(4) In the traditional cable connection method, different cables need to be pulled to the same station and are installed on connectors with fixed specifications, on one hand, different cable connection sections can be respectively provided with connectors at different stations, and then the different connectors are connected through a conducting piece, so that proper stations can be selected for flexible and free operation; on the other hand, compared with the traditional connector, the single connector has smaller volume, is convenient to hold, and is suitable for being used in various severe working environments.

In some embodiments, before the injecting the adhesive into the accommodating cavity through the injecting channel, the method further comprises: the body is vertical, the infusion channel is arranged at the lower part, and the ventilation retraction sealing structure is arranged at the upper part.

In some embodiments, the step stripping the outer skin of the cable connection section sequentially comprises: and sequentially stripping the outer sheath and the shielding layer of the cable connecting section layer by layer in a step manner.

In some of these embodiments, the mounting the shield ground wire on the shield layer includes: and the shielding layer is crimped and fixed with a fixed sleeve of the shielding grounding wire, and then the shielding grounding wire is penetrated out of the through hole of the plug head and grounded.

In some of these embodiments, the infusing the adhesive into the receiving cavity through the infusion channel comprises: a syringe pre-filled with adhesive is connected to the infusion channel and the syringe is operated to infuse the adhesive into the receiving cavity.

In some of these embodiments, after the adhesive fully occupies the space within the receiving cavity and partially fills the vent retraction seal, further comprising: the removable plug is operated to block the infusion channel to avoid leakage of the bond.

In some embodiments, after the connecting the different connectors by the conductive member, the method further comprises: the operation lock catches are arranged between different connectors and circumferentially encircle to lock each connector.

In some embodiments, the operating lock is disposed between different connectors and circumferentially surrounds each connector to lock each connector, including: operating a first clamp and a second clamp with one hinged end to circumferentially surround different connecting positions of the connectors, and enabling a reverse pushing handle at the other end of the first clamp to cover the outer peripheral surface of the first clamp; and operating the locking hoop at the other end of the second clamp to cover the back-pushing handle, and enabling the locking hoop to be clamped into a clamping piece arranged on the surface of the first clamp.

Drawings

Fig. 1 is a schematic view of a cable connection device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a schematic view of the left-hand connector of FIG. 1;

FIG. 4 is a schematic view of the right-hand connector of FIG. 1;

FIG. 5 is an exploded view of FIG. 1 with the latch omitted;

FIG. 6 is a half cross-sectional view of the body of the connector of FIG. 3 in mating engagement with a plug head;

FIG. 7 is a schematic perspective view of a plug;

FIG. 8 is a perspective view of the latch of FIG. 1;

FIG. 9 is a schematic view of FIG. 8 after being opened;

FIG. 10 is a mechanical schematic of FIG. 8;

in the figure, 10, a connector;

100. a body; 110. a receiving cavity; 120. a vent retraction seal; 130. a conductive member; 131. a contact pin; 132. a plug bush; 132a, a slit; 133. a spring sleeve; 141. an outer connecting sleeve; 142. an inner connecting sleeve;

200. a plug head; 210. a mounting channel; 211. convex teeth; 220. a connection part; 230. a constriction; 240. a through hole;

300. an infusion channel; 310. a detachable plug;

400. a syringe;

20. locking; 21. a first clip; 21a, clamping piece; 22. a second clip; 23. a reverse pushing handle; 24. locking a hoop;

30. a cable connection section; 31. a shielding layer; 32. an end portion;

40. a binder;

50. shielding a grounding wire; 51. and (5) fixing the sleeve.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

In order that the invention may be readily understood, various embodiments of the invention defined by the claims will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings, which contain various specific details to aid in this understanding, but these details should be regarded as merely exemplary. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Accordingly, one of ordinary skill in the art will recognize that variations and modifications can be made to the various embodiments described herein without departing from the scope of the invention as defined by the appended claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims.

Throughout the description and claims of this specification, the words "comprise" and "include" and variations of the words, such as "comprising" and "comprising", mean "including but not limited to", and are not intended to (and do not) exclude other elements, integers or steps. Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

It should be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. The terms "comprises," "comprising," and/or "including" as used in this specification are intended to specify the presence of stated features, operations, or elements, but are not intended to limit the presence of one or more other features, operations, and/or elements. Furthermore, in the present disclosure, the terms "comprises" and/or "comprising," are intended to denote the presence of the characteristics, quantity, operation, elements, and components disclosed in the application, or combinations thereof. Thus, the terms "comprising" and/or "having" should be understood to mean that there are additional possibilities of one or more other features, quantities, operations, elements, and components, or combinations thereof.

In the present invention, the expression "or" includes any or all combinations of words listed together. For example, "a or B" may contain a or B, or may contain both a and B.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present.

The terms "upper", "lower", "left", "right", and the like are used herein only to denote relative positional relationships, which may be changed when the absolute position of the object to be described is changed.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and this specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-6, in an embodiment of the present invention, there is provided a connector 10, comprising:

a body 100, the body 100 forming a receiving cavity 110 capable of receiving the cable connection section 30, and the body 100 having a vent retraction seal 120, the vent retraction seal 120 being in communication with the receiving cavity 110 for venting gas in the receiving cavity 110 and pre-storing adhesive 40, and the adhesive in the vent retraction seal 120 being capable of retractably filling a void in the receiving cavity 110; the body 100 is provided with a conductive member 130 for externally connecting the cable connection section 30 with an electric device;

a plug 200 connected to the body 100, wherein a mounting channel 210 is formed in the plug 200 for the cable connection section 30 to pass through for being placed in the accommodating cavity 110;

an infusion channel 300 is in communication with the receiving cavity 110 for infusing the adhesive 40 into the receiving cavity 110.

In a specific operation, firstly, the outer skin such as the outer sheath and the shielding layer 31 of the cable connection section 30 are sequentially peeled off in steps, and the cable connection section 30 with the outer skin peeled off passes through the installation channel 210; crimping the shielding ground wire 50 on the shielding layer 31, inserting the cable connection section 30 into the accommodating cavity 110, and docking the body 100 with the plug 200, wherein the end 32 of the cable connection section 30 can be electrically connected with the conductive member 130 on the body 100;

the adhesive body 40 in a flowing state is infused into the accommodating cavity 110 through the infusion channel 300, and the adhesive body 40 can be filled between the outer peripheral surface of the cable connection section 30 and the accommodating cavity 110 and the mounting channel 210 after entering the accommodating cavity 110. Because the vent retraction seal structure 120 is communicated with the exterior of the body, as filling proceeds, the adhesive gradually occupies the space of the accommodating cavity 110 and continuously extrudes the air in the accommodating cavity 110 through the vent retraction seal structure 120 to the outside until the adhesive 40 completely occupies the space in the accommodating cavity 110 and is partially filled into the vent retraction seal structure 120;

in the process that the adhesive body 40 is solidified into a solid state by flowing state cooling, the volume can be reduced, a gap is formed in the accommodating cavity 110, at the moment, the adhesive body 40 in the ventilation retraction sealing structure 120 can be partially retracted into the accommodating cavity 110, the gap generated by shrinkage of the adhesive body 40 in the cooling solidification process is filled, and meanwhile, the adhesive body 40 in the ventilation retraction sealing tube has a plugging effect after solidification, so that external water vapor can be prevented from entering the accommodating cavity 110 through the adhesive body 40, and the conductivity is reduced.

The different cables are mounted to the different connectors 10 as described above, and then the different connectors 10 are connected through the conductive members 130 to achieve connection of the different cables.

The invention has the following beneficial effects:

(1) In this embodiment, the adhesive body 40 can be fully filled between the accommodating cavity 110, the mounting channel 210 and the outer peripheral surface of the cable connection section 30, and the adhesive is firm without gaps, and even if the adhesive body is bent, gaps are not generated between the accommodating cavity 110 and the cable connection section 30, and poor insulation is not generated when the adhesive body is used in water or in a humid environment.

(3) It has been found that air is liable to remain in various sealing operations of the cable connector, and that the volume of the adhesive body is reduced when the adhesive body is solidified from a liquid state to a solid state, and a void is formed in the connector, and the adhesive body becomes a factor causing a decrease in insulation resistance in use, so that the insulation resistance of the lamp circuit is low and the use effect is poor. After the connector 10 is adopted, the air in the accommodating cavity 110 can be discharged through the ventilation retraction sealing structure 120 in the process of infusing the bonding body 40, so that the air discharge is smooth and the generation of a gap can be avoided; even if a gap is generated in the accommodating cavity 110 in the process that the bonding body 40 is cooled and solidified into a solid state, the bonding body 40 in the ventilation retraction sealing structure 120 can retract into the accommodating cavity 110, so that the gap generated by shrinkage of the bonding body 40 in the cooling and solidification process is filled, meanwhile, the bonding body 40 in the ventilation retraction sealing tube has a plugging function after solidification, external water vapor can be prevented from entering the accommodating cavity 110 through the bonding body 40, the conductivity is stable, no cavity can be generated in the accommodating cavity 110 of the final connector, insulation can be maintained in the long-term use process, and the problem that the insulation resistance of a lamplight loop of an airport is low is fundamentally solved. The connection performance of the connectors 10 through the conductors is good, and the transmission quality of the whole loop is remarkably improved.

Referring to fig. 6, in some embodiments, the infusion channel 300 and the vent retraction seal 120 are disposed at two ends of the housing cavity 110 in the length direction. In this embodiment, in the process of pouring the adhesive body 40 into the accommodating cavity 110 through the infusion channel 300, the adhesive body 40 drives air along the length direction of the accommodating cavity 110 to the other end and discharges the air from the ventilation retraction sealing structure 120, so that the air in the body 100 can be ensured to be completely discharged.

Further, when the adhesive body 40 is poured, the body 100 may be vertically arranged, such that the infusion channel 300 is arranged at the lower part and the ventilation and retraction sealing structure 120 is arranged at the upper part, and the adhesive body 40 is poured into the accommodating cavity 110 from the bottom to the top through the infusion channel 300. Such an arrangement facilitates rapid driving of air and evacuation from the vent retract seal structure 120 due to the relatively low density of air.

Further, the infusion channel 300 is provided with a detachable plug 310, and the detachable plug 310 can be operated to plug the infusion channel 300 after the infusion is completed, so as to avoid the leakage of the adhesive body 40.

In some embodiments, the vent retraction seal structure 120 comprises a vent retraction seal tube. The ventilation retraction sealing tube is communicated with the outside of the body, so that air can be discharged, part of the adhesive body 40 can be stored, the volume of the adhesive body 40 can be reduced in the cooling solidification process, at the moment, the adhesive body 40 in the ventilation retraction sealing tube can retract into the accommodating cavity 110, a gap generated by shrinkage of the adhesive body 40 in the cooling solidification process is filled, and meanwhile, the adhesive body 40 in the ventilation retraction sealing tube has a plugging effect after solidification, so that external water vapor can be prevented from entering the accommodating cavity 110 to reduce the conductivity. Any cavity is not generated in the accommodating cavity 110 of the final connector, and insulation can be maintained in the long-term use process.

As a preferred embodiment, the infusion channel 300 is provided in the stopper 200. The syringe 400 with the adhesive body 40 inside is connected with the infusion channel 300 on the plug 200, and the adhesive body 40 such as polyurethane glue can be directly injected into the infusion channel 300 by operating the syringe 400. The infusion channel 300 of the present embodiment may be integrally formed with the stopper 200, and is convenient for manufacturing, assembly and use.

Referring to fig. 7, in some embodiments, the plug 200 includes a connection portion 220 and a constriction portion 230 sequentially disposed along the extension direction of the installation passageway 210, the connection portion 220 is detachably connected to the body 100, and the constriction portion 230 has an inner diameter gradually decreasing from a direction approaching the connection portion 220 to a direction away from the connection portion 220 so as to be closely fitted to the circumferential surface of the cable connection section 30.

Specifically, since the connection part 220 is detachably connected to the body 100, the free assembly and disassembly of the present embodiment are facilitated; and, the inner diameter of the constriction 230 gradually decreases from approaching the connection 220 to separating from the connection 220, so that the constriction can be tightly attached to the circumferential surface of the cable connection section 30 when the cable is threaded, and a gap is prevented from being generated between the cable connection section 30 and the inner wall of the constriction 230 when the cable is used.

Further, the constriction 230 is made of a flexible material. The flexible material has elasticity, can adapt to deformation when wearing to establish cable junction section 30 to firmly overlap and establish at cable junction section 30's circumference surface, produce the clearance between cable junction section 30 and the inner wall of constriction 230 when avoiding using, flexible material can adapt to deformation, also conveniently wears to establish installation cable junction section 30.

Referring to fig. 6, in some embodiments, the conductive member 130 and the plug 200 are disposed at opposite ends of the axis of the body 100. With such an arrangement, the separate conductors 130 do not affect the installation of the plug 200, on the one hand, and the plug 200 does not affect the interconnection between the conductors 130 of different connectors 10, on the other hand.

Referring to fig. 7, in some embodiments, the plug 200 has a through hole 240 formed therein for the shield ground wire 50 secured to the cable connection segment 30 to pass outwardly.

Specifically, when the plug 200 is installed, the cable connection section 30 is passed through the installation channel 210, the fixing sleeve 51 of the shielding ground wire 50 is crimped and fixed on the shielding layer 31, and then the shielding ground wire 50 is passed out of the plug 200 from the through hole 240 and grounded; the cable connection segment 30 is then inserted into the receiving cavity 110 and the body 100 is docked with the plug head 200.

In this embodiment, the arrangement of the through holes 240 facilitates the extraction of the shielding ground wire 50, and facilitates the arrangement and assembly of the shielding ground wire 50. Of course, in other embodiments, the shielding ground wire 50 may extend from other locations of the device of the present invention, without limitation.

Preferably, the through-hole 240 and the infusion channel 300 are pre-closed structures. When not assembled, the through hole 240 and the infusion channel 300 are sealed in advance, and when in use, the infusion channel 300 can be directly punctured by the syringe 400, and the through hole 240 can be punctured by the shielding grounding wire 50, so that the infusion device can be normally assembled for use. In this embodiment, the pre-closed structure can effectively avoid the through hole 240 or the channel from being blocked by impurities before use.

Referring to fig. 6, in some embodiments, the walls of the receiving cavity 110 and/or the mounting channel 210 are provided with protrusions. The protrusions may enhance the surface friction of the wall surface of the accommodating cavity 110 and/or the mounting channel 210, and may enhance the connection strength of the adhesive body 40 in the accommodating cavity 110 and/or the mounting channel 210.

Further, the protruding portion may include a plurality of teeth 211 distributed along the extending direction on the wall surface of the mounting channel 210, and the teeth 211 are disposed around the circumference of the mounting channel 210.

The present invention also provides a cable connection device, as shown in fig. 1 and 2, comprising two or more connectors 10, wherein each connector 10 is connected by a conductive member 130.

Referring to fig. 2, in some embodiments, the cable connection device includes two connectors 10, and the conductors 130 on the two connectors 10 that are cooperatively connected include pins 131 and sleeves 132, respectively, where the pins 131 and the sleeves 132 are cooperatively mounted on the corresponding bodies 100, respectively, and are respectively inserted into the receiving cavities 110 in the corresponding bodies 100.

Specifically, the pins 131 and the bushings 132 may be cooperatively connected and electrically conductive, so as to realize electrical connection of the two connectors 10; the other ends of the pins 131 and the sleeves 132 respectively extend into the accommodating cavity 110 of the body 100 to realize electrical connection with the cable connection section 30 in the body 100, for example, when the cable connection section 30 is installed, the pins 131 or the sleeves 132 can be sleeved on the exposed conductive copper wire at the tail end of the cable connection section 30 in advance and pressed by a cold pressing mode such as a wire pressing clamp, then the cable connection section 30 with the installed conductive member 130 passes through the plug head 200 and is inserted into the accommodating cavity 110, and the body 100 is butted with the plug head 200 to realize the matched installation of the cable connection section 30 and the connector 10. The structure of this embodiment is simple, and the conductive member 130 is detachably assembled with the body 100 of the connector, so that the connector has strong assembly and disassembly, and the connector 10 can be quickly connected by simple operation.

It should be noted that the cable connection device may further include more than three connectors 10, where a plurality of connectors 10 are connected at the same position, so as to meet unique use requirements.

Referring to fig. 5, in some embodiments, the sleeve 132 is circumferentially provided with a plurality of slits 132a, the slits 132a extend along the length direction of the sleeve 132, and the sleeve 132 is sleeved with a spring sleeve 133.

Specifically, the spring sleeve 133 can apply a pre-tightening force to the plug bush 132 through the wrapping effect, and since the plug bush 132 is circumferentially distributed with a plurality of gaps 132a, the pre-tightening force applied by the spring sleeve 133 can enable the plug bush 132 to shrink integrally, so that the plug bush 132 and the plug pin 131 are firmly matched and connected.

Of course, in other embodiments, the conductive member 130 may be configured in other structures, for example, a conductive wire may be directly used, and the conductive wire may be configured to have a desired length, so that the conductive wire may be suitable for interconnection of connectors that are far apart, and has better flexibility.

Referring to fig. 2, in some embodiments, the body 100 of the two connectors 10 is provided with an outer connecting sleeve 141 and an inner connecting sleeve 142, respectively, and the outer connecting sleeve 141 and the inner connecting sleeve 142 are in plug-fit.

Specifically, the outer connecting sleeve 141 and the inner connecting sleeve 142 are in plug-in fit and can be firmly connected, so that the loosening is avoided during use, and the stability of connection is enhanced.

Referring to fig. 2, in some embodiments, the cable connection device further includes a latch 20 circumferentially disposed around the outer connection sleeve 141, and the latch 20 is capable of locking the outer connection sleeve 141 with the inner connection sleeve 142 by applying a holding force to the outer connection sleeve 141. In this embodiment, the lock catch 20 can further enhance the stability of the connection between the male connecting sleeve 141 and the female connecting sleeve 142 in the plug-in connection.

Referring to fig. 8 and 9, in some embodiments, the lock catch 20 includes a first clamp 21 and a second clamp 22 that can circumferentially surround the outer connecting sleeve 141, one end of the first clamp 21 is hinged to one end of the second clamp 22, the other end of the first clamp 21 is connected with a back-pressing handle 23 covering the outer circumferential surface of the first clamp 21, the other end of the second clamp 22 is connected with a lock collar 24 capable of covering the back-pressing handle 23, and the lock collar 24 is clamped into a clamping member 21a provided on the surface of the first clamp 21.

Specifically, referring to fig. 10, during the fastening, the clamping member 21a applies an external force F1 to the latch 24, and under the action of the external force F1, the latch 24 presses the end of the reverse pressing handle 23 and applies F2, and the F2 applies a pressing force F3 to the other end of the first clamp 21 using the reverse pressing handle 23 as a power arm; meanwhile, the reverse pushing handle 23 is supported and filled between the lock hoop 24 and the first clamp hoop 21, the other end of the second clamp hoop 22 bears the outward pulling force F4 applied by the lock hoop 24, and after the buckling is completed, the total assembly external force of the lock catch 20 is zero.

Therefore, the first clamp 21 receives the pressing force F3, the other end of the second clamp 22 receives the pulling force F4 applied by the locking clamp 24, and the outer connecting sleeve 141 is circumferentially tightened by the cooperation of the F3 and the F4, so that the outer connecting sleeve 141 and the inner connecting sleeve 142 are locked and connected. In this embodiment, the arrangement of the reverse pushing handle 23, the locking collar 24 and the clamping member 21a can further enhance the connection stability of the male connection sleeve 141 and the female connection sleeve 142 of the plug-in connection.

The cable connection method of the present invention will be fully described with reference to the structure of this embodiment: firstly, the body 100 is vertical, the infusion channel 300 is arranged at the lower part, and the ventilation retraction sealing structure 120 is arranged at the upper part; sequentially peeling off the outer skin of the cable connecting section 30 such as the outer sheath and the shielding layer 31 in steps, crimping the conductive member 130 by cold pressing at the end 32 of the cable connecting section 30 from which the outer skin is peeled off, and passing the cable connecting section 30 and the conductive member 130 through the installation channel 210; crimping the shielding grounding wire 50 on the shielding layer 31, and then penetrating the shielding grounding wire 50 out of the plug 200 from the through hole 240 and grounding; then, the cable connecting section 30 is inserted into the accommodating cavity 110, and the body 100 is in butt joint with the plug head 200;

connecting the injector 400 to the infusion channel 300, and infusing the adhesive body 40 in a flowing state into the accommodating cavity 110 from bottom to top through the infusion channel 300, wherein the adhesive body 40 can be filled between the outer peripheral surface of the cable connecting section 30 and the accommodating cavity 110 and the mounting channel 210 after entering the accommodating cavity 110, gradually occupies the space of the accommodating cavity 110 as filling progresses, and continuously extrudes air in the accommodating cavity 110 outwards through the ventilation retraction sealing structure 120 until the adhesive body 40 completely occupies the space in the accommodating cavity 110 and is partially filled into the ventilation retraction sealing structure 120;

the volume of the adhesive body 40 is reduced and a gap is formed in the accommodating cavity 110 in the process of cooling and solidifying from a flowing state to a solid state, and at this time, the adhesive body 40 in the ventilation and retraction sealing structure 120 is retracted into the accommodating cavity 110, so that the gap generated by the shrinkage of the adhesive body 40 in the cooling and solidifying process is filled.

Different cable connection sections to be connected are mounted on different connectors 10 according to the method, and then different connectors 10 are connected through a conducting piece 130 to realize connection of different cables.

The method has the following advantages:

(3) It has been found that air is liable to remain in various sealing operations of the cable connector, and that the volume of the adhesive body is reduced when the adhesive body is solidified from a liquid state to a solid state, and a void is formed in the connector, and the adhesive body becomes a factor causing a decrease in insulation resistance in use, so that the insulation resistance of the lamp circuit is low and the use effect is poor. After the connector 10 is adopted, air in the accommodating cavity 110 can be discharged through the ventilation retraction sealing structure in the process of infusing the bonding body 40, so that the air discharge is smooth and the generation of a gap can be avoided; even if a gap is generated in the accommodating cavity 110 in the process of cooling and solidifying the bonding body 40 into a solid state, the bonding body 40 in the ventilation and retraction sealing structure 120 can retract into the accommodating cavity 110, so that the gap generated by the shrinkage of the bonding body 40 in the cooling and solidification process is filled; meanwhile, the adhesive body 40 in the ventilation retraction sealing tube has a plugging effect after solidification, so that external water vapor can be prevented from entering the accommodating cavity 110 through the adhesive body, the electric conductivity is stable, any cavity cannot be generated in the accommodating cavity 110 of the final connector, insulation can be maintained in the long-term use process, and the problem of low insulation resistance of a lamplight loop of a long-term confusion airport is fundamentally solved. The connection performance of the connectors 10 through the conductors is good, and the transmission quality of the whole loop is remarkably improved.

In the above description, although the respective elements of the present invention may be described using expressions such as "first" and "second", they are not intended to limit the corresponding elements. For example, the above description is not intended to limit the order or importance of the corresponding elements. The above description is intended to distinguish one element from another element.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms include plural forms unless there is a significant difference in context, schemes, etc. between them.

The foregoing is merely exemplary embodiments of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.

It will be appreciated by those skilled in the art that the technical features of the above-described embodiments may be omitted, added or combined in any way, and that all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, and that simple variations which can be envisaged by those skilled in the art, and structural variations which make adaptations and functionalities of the prior art, should be considered as within the scope of the present description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that while the present invention has been shown and described with reference to various embodiments, it will be apparent to those skilled in the art that various changes and modifications in form and details may be made therein without departing from the scope of the invention as defined by the appended claims. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A method of cable connection comprising:

peeling off the outer skin of the cable connecting section in a step manner, and enabling the cable connecting section to pass through the installation channel of the plug head; installing a shielding grounding wire on a shielding layer of the cable connecting section, connecting a conducting piece to the end part of the cable connecting section by a cold pressing method, inserting the cable connecting section into the accommodating cavity, and butting the body with the plug head;

the body is arranged vertically, the body and the plug are arranged vertically, an infusion channel arranged on the plug is arranged at the lower part of the accommodating cavity, a ventilation retraction sealing structure is arranged at the upper part of the accommodating cavity, and a bonding body infused from the infusion channel flows from bottom to top to the ventilation retraction sealing structure;

the adhesive body is infused into the accommodating cavity obliquely downwards through an infusion channel which forms an acute angle with the flowing direction of the adhesive body in the accommodating cavity, the adhesive body can be filled between the outer peripheral surface of the cable connecting section and the accommodating cavity after entering the accommodating cavity, and the adhesive body gradually occupies the space of the accommodating cavity and continuously extrudes air in the accommodating cavity outwards in an oblique direction through a ventilation retraction sealing structure which forms an acute angle with the flowing direction of the adhesive body in the accommodating cavity along with the filling until the adhesive body completely occupies the space in the accommodating cavity and is partially filled into the ventilation retraction sealing structure;

different cable connection sections to be connected are respectively installed to different connectors, and then different connectors are connected through conducting pieces to realize connection of different cables.

2. The method of cabling according to claim 1, further comprising, prior to the infusion of the adhesive into the receiving cavity through the infusion channel: the body is vertical, the infusion channel is arranged at the lower part, and the ventilation retraction sealing structure is arranged at the upper part.

3. The cable connection method according to claim 1, wherein the step-stripping the outer skins of the cable connection sections in sequence comprises: and sequentially stripping the outer sheath and the shielding layer of the cable connecting section layer by layer in a step manner.

4. The method of cable connection according to claim 1, wherein mounting a shield ground wire on the shield layer comprises: and the shielding layer is crimped and fixed with a fixed sleeve of the shielding grounding wire, and then the shielding grounding wire is penetrated out of the through hole of the plug head and grounded.

5. The cable connection method of claim 1, wherein the infusion of the adhesive into the receiving cavity through the infusion channel comprises: a syringe pre-filled with adhesive is connected to the infusion channel and the syringe is operated to infuse the adhesive into the receiving cavity.

6. The method of claim 1, wherein after the adhesive body occupies the space within the receiving cavity completely and partially fills the vent retraction seal, further comprising: the removable plug is operated to block the infusion channel to avoid leakage of the bond.

7. The method of claim 1, further comprising, after connecting the different connectors by a conductive member: the operation lock catches are arranged between different connectors and circumferentially encircle to lock each connector.

8. The method of claim 7, wherein an operating latch is disposed between different ones of the connectors and circumferentially surrounds each of the connectors to lock each of the connectors, comprising: operating a first clamp and a second clamp with one hinged end to circumferentially surround different connecting positions of the connectors, and enabling a reverse pushing handle at the other end of the first clamp to cover the outer peripheral surface of the first clamp; and operating the locking hoop at the other end of the second clamp to cover the back-pushing handle, and enabling the locking hoop to be clamped into a clamping piece arranged on the surface of the first clamp.