Cable connecting device

Abstract

The invention discloses a cable connecting device which comprises a first shell, a second shell, a driving part, a first conductive assembly and a second conductive assembly, the first conductive assembly and the second conductive assembly are arranged in inner cavities of the first shell and the second shell in the mode that the first conductive assembly and the second conductive assembly can slide along the axis, and a plurality of wire grooves penetrating in the axis direction are formed in one end face of the first conductive assembly and the second conductive assembly. An electric connection part and a cutting part which are selectively and elastically telescopic are sequentially arranged in the wiring trough; the first conductive assembly and the second conductive assembly are driven by the driving piece to slide in the direction close to each other along the axis at the same time, so that the cutting part and the electric connection part selectively extend out in sequence, and stripping of the outer skin of the wire and stable connection of the electric connection part and the inner core of the wire are achieved. During cable connection, an operator only needs to excessively insert wires into the wire grooves one by one, and connection can be completed by rotating the driving piece; the connecting device has low technical requirements on operators, completely breaks away from dependence on installation equipment or tools, is convenient and rapid, and can complete stripping and connection of multiple strands of wires at the same time through one-time screwing.

Description

Technical Field

[0001] The invention belongs to the technical field of cable connection, and in particular relates to a cable connection device. Background Art

[0002] Cables are essential connection elements in communication projects. They are usually made of multiple mutually insulated wires wrapped in insulating sleeves into a cylindrical shape. In engineering use, due to reasons such as line layout, interconnection between cables is the most common. Pure manual connection is time-consuming and labor-intensive, and it is difficult to achieve a unified standard depending on the experience of the connection personnel, which can easily cause unstable cable connections. Therefore, in daily cable connection operations, cable connectors are often used for connection to ensure that the connection reaches a unified and stable standard.

[0003] The patent with publication number (CN117937168A) in the prior art provides a coaxial cable connector, an assembly device and an assembly method, including a first connection terminal and a second connection terminal adapted to the first connection terminal, the first connection terminal and the second connection terminal can establish an electrical connection, and the two are respectively connected to a cable; the coaxial cable connector also includes: a pipe, rotatably mounted on the second connection terminal, two sets of sliding limit structures are provided between the outer wall of the pipe and the inner wall of the first connection terminal; an elastic support structure, mounted on the first connection terminal, the elastic support structure can be inserted into the second connection terminal The elastic potential energy is stored inside the first connecting terminal, and the elastic potential energy is released after the tube is rotated; the assembly of the cable connector requires the use of specific assembly equipment, step one, fixing the cable on the assembly plate through a clamping mechanism; step two, the two-way transverse movement mechanism works forward, prompting the first driven mechanism to be triggered, driving the glue supply head to move toward the cable, and applying glue to the cable; step three, the two-way transverse movement mechanism works reversely, prompting the second driven mechanism and the third driven mechanism to be triggered in sequence, the second driven mechanism drives the adsorption head to move toward the end of the cable, feeding material to the glue-coated part of the cable, and the third driven mechanism drives the pressure wheel to approach the glue-coated part of the cable, and rolls the glue-coated part.

[0004] Although the connector provided by the above-mentioned prior art solves the problem of unstable connection, when connecting the cable conductor to the two terminals, professional equipment is required to apply glue and press-fit in advance to complete the installation; therefore, the connector provided by the prior art has the following problems: it is too dependent on the installation equipment, which increases the cost of using the connector, and because it is necessary to press-fit specific equipment in advance, the process is cumbersome and the convenience of use is greatly reduced. Summary of the invention

[0005] In view of the above technical problems existing in the prior art, an embodiment of the present invention provides a cable connection device. To solve the above technical problems, the technical solution adopted by the embodiment of the present invention is: A cable connection device is connected to a cable, the cable has a plurality of conductors and an insulating sleeve covering all the conductors, comprising: a shell body 1 and a shell body 2, both of which have a fastening portion fastened to the insulating sleeve and a cylindrical inner cavity; a conductive component 1 is arranged in the inner cavity of the shell body 1 and can slide along the axial direction of the inner cavity; a plurality of conductor grooves extending along the axial direction are provided on one end face thereof, and an electrical connection portion and a cutting portion that can selectively elastically expand and contract in a direction perpendicular to the axial direction are provided in sequence in the conductor grooves, and a driving rod 1 with threads is fixed on the other end thereof; a conductive component 2 is arranged in the inner cavity of the shell body 2 and can slide along the axial direction of the inner cavity; a plurality of conductor grooves extending along the axial direction are provided on the end face away from the shell body, and the conductor grooves correspond one to one with the conductor grooves provided in the conductive component 1, and the electrical connection portion and the cutting portion that can selectively elastically expand and contract in a direction perpendicular to the axial direction are provided in sequence in the conductor grooves, and a driving rod 1 with threads is fixed on the other end thereof A drive rod 2 with a thread is fixedly provided; the electrical connection part of the conductive component 1 is electrically connected to the electrical connection part of the conductive component 2 through a flexible wire in a one-to-one correspondence; a cylindrical drive member is arranged between the shell 1 and the shell 2 along the axial direction and can rotate independently, and its two ends are respectively threadedly adapted to the drive rod 1 and the drive rod 2; the wires are in a one-to-one correspondence and excessively inserted into the wire groove, and the rotation of the drive member to one side can simultaneously drive the conductive component 1 and the conductive component 2 to slide in a direction close to each other, so that the cutting part in the wire groove can extend and peel off the outer skin of the wire, and the electrical connection part can extend to achieve a stable electrical connection with the inner core of the wire; the rotation of the drive member to the other side can simultaneously drive the conductive component 1 and the conductive component 2 to slide in a direction away from each other, so that the cutting part in the wire groove shrinks and disengages from the clamping cutting of the wire, and at the same time, the electrical connection part shrinks and disengages from the stable electrical connection with the inner core of the wire.

[0006] Preferably, two ends of the driving member extend into the housing 1 and the housing 2 respectively, and seals are formed between the outer walls at both ends of the driving member and the inner walls of the housing 1 and the housing 2 respectively.

[0007] Preferably, the shell 1 and the shell 2 both include an outer cylinder and an annular end cover fixed to one end of the outer cylinder, and the inner wall of the outer cylinder is provided with a slide groove group corresponding to the electrical connection part and the cutting part one by one.

[0008] Preferably, the conductive component 1 and the conductive component 2 also include a cylindrical slider, the wire groove is opened on the slider and passes through the slider axially, and a plurality of wire grooves are evenly distributed on a circle concentric with the end face of the slider; the driving rod 1 and the driving rod 2 are cylinders with external threads, and are respectively fixedly connected to one end of the slider.

[0009] Preferably, the cutting portion includes a lower cutting edge fixed to the inner wall of the wire groove close to the axis and an upper cutting edge that can be elastically retracted, the lower end of the upper cutting edge and the lower cutting edge are complementary semicircular shapes, and the upper end of the upper cutting edge passes through the slider and extends into the slide groove group.

[0010] Preferably, the electrical connection part includes: an electrical connection plate, which is fixed on the inner wall of the wire groove close to the axis side and has one end extending out of a slider along the axis direction; a clamping column, which is arranged above the electrical connection plate and can be elastically retracted, and the upper end of the clamping column passes through the slider and extends into the slide groove group.

[0011] Preferably, the slider consists of an outer slider and a conductive block, one end face of the outer slider is provided with a recessed hole consistent with the shape of the conductive block, the conductive block is fixed in the recessed hole, the wire groove provided on the conductive block is coaxial and one-to-one corresponding to the wire groove provided on the outer slider; an electrical connector is fixedly provided on the inner wall of the wire groove of the conductive block.

[0012] Preferably, the fastening portion is provided with an annular locking piece, the locking piece is clamped on the outer end of the end cover, and the inner periphery of the locking piece is provided with an annular claw.

[0013] Preferably, the claw and the locking member are designed separately, and a stop edge is provided at one end of the claw, so that the locking member can press the claw along the direction of cable insertion.

[0014] Preferably, the outer wall of the driving member is provided with a torsion portion, and the shell 1 and the shell 2 are provided with fixed arms extending outwards and matching with each other.

[0015] Preferably, a seal is formed between the inner wall of the annular end cover and the outer wall of the cable.

[0016] Compared with the prior art, the cable connection device provided by the embodiment of the present invention has the following beneficial effects: 1. The sliders of conductive component 1 and conductive component 2 are driven by a driving member to slide along the axis toward each other at the same time, and the cutting part and the electrical connection part are controlled to extend in sequence under the action of the slide groove group, so as to realize the stripping of the outer skin of the wire and the stable connection between the electrical connection part and the inner core of the wire in sequence; when connecting the cables, the operator only needs to insert the multiple strands of wire into the corresponding wire grooves one by one, lock the locking member, and then rotate the driving member to complete the task; the connection device of the present application has low technical requirements for the operator, is completely independent of the dependence on installation equipment or tools, is convenient and fast, and can complete the stripping and connection of multiple strands of wire at the same time with one twist. 2. The claws of the locking member are set to a structure that can be elastically extended and retracted in the radial direction, so as to meet the use of cables with different numbers of wire strands and different diameters. 3. The setting of sealing part 1 and sealing part 2 forms a waterproof isolation between the inside of the connector and the outside world, which greatly improves the waterproof performance of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural exploded view of a cable connecting device provided in an embodiment of the present invention. Figure 2 This is a structural stereogram of a cable connecting device provided by an embodiment of the present invention. Figure 3 A cross-sectional view of a cable connection device provided in an embodiment of the present invention (initial state of cable connection). Figure 4 A cross-sectional view of a cable connection device provided in an embodiment of the present invention (the final state of the cable connection). Figure 5 It is a right side view of the cable connecting device provided by an embodiment of the present invention. Figure 6 A structural stereogram of a conductive component provided by an embodiment of the present invention. Figure 7 This is a structural exploded view of a conductive component provided in an embodiment of the present invention. Figure 8 A structural cross-sectional view of a conductive component provided by an embodiment of the present invention. Fig. 9 This is a right side view of the structure of the outer cylinder provided in an embodiment of the present invention. Fig.10 This is a structural cross-sectional view of an outer cylinder provided in an embodiment of the present invention. Fig.11 A structural stereogram of a locking member provided in an embodiment of the present invention. Fig.12 A structural cross-sectional view of the fastening portion provided in an embodiment of the present invention (the locking member and the claw are designed to be separate). Fig.13 This is a structural exploded view of the fastening portion provided in an embodiment of the present invention (the locking member and the claw are designed as separate parts). Fig.14 This is a structural stereogram of a clamping claw provided in an embodiment of the present invention.

[0018] In the figure: 100-housing 1; 200-housing 2; 300-conductive component 1; 400-conductive component 2; 500-driving member; 1-outer cylinder; 2-end cover; 3-slider; 4-driving rod 1; 5-driving rod 2; 6-cutting part; 7-electrical connection part; 8-locking member; 9-adapter; 10-fastening part; 11-slide group; 12-fixed arm; 31-wire groove; 32-step hole 1; 33-step hole 2; 34-outer slider; 35-conductive block; 61-upper cutting edge; 62-lower cutting edge; 71-electrical connection piece; 72-pressing column; 81-claw; 501-torsion part; 341-long hole; 611-slide rod; 811-locking wall; 812-card; 813-stop edge; S-spring; K-sealing ring; D-flexible wire. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up” and “down” are based on the positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] like Figure 1 to Figure 2 As shown, an embodiment of the present invention discloses a cable connection device, which is connected to a cable, wherein the cable has a plurality of conductors and an insulating sleeve covering all the conductors, and comprises: a shell 100 and a shell 200, both of which have a fastening portion fastened to the insulating sleeve and a cylindrical inner cavity; a conductive component 300, which is arranged in the inner cavity of the shell 100 and can slide along the axial direction of the inner cavity; a plurality of conductor grooves 31 extending in the axial direction are provided on one end face thereof, and an electric connection portion 7 and a cutting portion 6 which can selectively elastically expand and contract in a direction perpendicular to the axial direction of the inner cavity are provided in sequence in the conductor grooves 31, and a driving rod 4 with threads is fixed on the other end thereof; a conductive component 2 400, which is arranged in the inner cavity of the shell 2 200 and can slide along the axial direction of the inner cavity; a plurality of conductor grooves 31 extending in the axial direction are provided on the end face thereof which is away from the end face thereof, and correspond one to one with the conductor grooves 31 provided in the conductive component 300, and an electric connection portion 7 and a cutting portion 6 which can selectively elastically expand and contract in a direction perpendicular to the axial direction of the inner cavity are provided in sequence in the conductor grooves 31 6, and a threaded driving rod 2 5 is fixed on the other end; the electrical connection part 7 of the conductive component 1 300 is electrically connected to the electrical connection part 7 of the conductive component 2 400 through a flexible wire D in a one-to-one correspondence; the cylindrical driving member 500 is arranged between the shell 1 100 and the shell 2 200 along the axial direction and can rotate independently, and its two ends are respectively threadedly adapted to the driving rod 1 4 and the driving rod 2 5; the wires are excessively inserted into the wire groove 31 in a one-to-one correspondence, and the driving member 500 rotates to one side to simultaneously drive the conductive component 1 300 and the conductive component 2 400 to slide in a direction close to each other, so that the cutting part 6 in the wire groove 31 can extend to peel off the outer skin of the wire, and the electrical connection part 7 extends to achieve a stable electrical connection with the inner core of the wire; the driving member 500 rotates to the other side to simultaneously drive the conductive component 1 300 and the conductive component 2 400 to slide in a direction away from each other, so that the cutting part 6 in the wire groove 31 shrinks and disengages from the clamping cutting of the wire, and at the same time, the electrical connection part 7 shrinks and disengages from the stable electrical connection with the inner core of the wire.

[0022] like Figures 3 to 11In a preferred embodiment, the shell 100 and the shell 200 both include an outer cylinder 1 and an annular end cap 2 fixed to one end of the outer cylinder 1. The outer cylinder 1 and the end cap 2 are both made of insulating materials. In this embodiment, the outer cylinder 1 and the end cap 2 are injection molded parts. The inner wall of the outer cylinder 1 is provided with a plurality of slide groove groups 11 corresponding to the wire grooves 31. The slide groove group 11 is a stepped groove that is wide at the bottom and narrow at the top. The stepped groove is opened along the axial direction and the depth of the wide groove at the bottom and the depth of the narrow groove at the top are selectively reduced in the direction away from the end cap 2. The two ends of the driving member 500 extend into the shell 100 and the shell 2 200 respectively. The conductive component 1 300 and the conductive component 2 400 are both provided with a cylindrical slider 3, and the driving rod 1 4 and the driving rod 4 are provided with a cylindrical slider 3. The rod 2 5 is a cylinder with an external thread, and is fixedly connected to one end of the slider 3. Both ends of the driving member 500 are provided with internal threads respectively adapted to the driving rod 1 4 and the driving rod 2 5, and the thread adaptation of the driving rod 1 4 is opposite to the thread adaptation direction of the driving rod 2 5. In this way, the driving member 500 can be rotated in one direction to realize the movement of the driving rod 1 4 and the driving rod 2 5 in the direction of approaching each other. In this embodiment, the driving rod 1 4, the driving rod 2 5 and the slider 3 are all injection molded parts, and the driving rod 1 4 and the driving rod 2 5 are respectively integrally formed with the corresponding slider 3; a plurality of wire grooves 31 are opened on the slider 3 along the axial direction and are evenly distributed in a direction that is the same as the end surface of the slider 3. On the circle of the center, a stepped hole 32 and a stepped hole 33 perpendicular to the axial direction are opened just above each wire groove 31. The cutting part 6 includes a lower cutting edge 62 fixed to the inner wall of the wire groove 31 close to the axis and an upper cutting edge 61 that can be elastically retracted. The lower end of the upper cutting edge 61 and the lower cutting edge 62 are complementary semicircular shapes. The lower cutting edge 62 can be pre-embedded into the wire groove 31 in advance when the slider 3 is injection molded. A slide bar 611 is provided at the upper end of the upper cutting edge 61. The slide bar 611 is located in the stepped hole 32 and the top end extends into the wide groove at the bottom of the stepped groove. A spring S is pressed into the stepped hole 32, and the two ends of the spring S respectively abut against the inner wall shoulder of the stepped hole 32 and the shoulder of the slide bar 611. The cutting edge 62 can be elastically extended; the electrical connection part 7 includes an electrical contact piece 71 and a clamping column 72 made of conductive metal material. The electrical contact piece 71 is fixed on the inner wall of the wire groove 31 close to the axis, and one end of the electrical contact piece 71 extends out of the slider 3 along the axis direction. The end of the electrical contact piece 71 of the conductive component 1 300 extending out of the slider 3 is electrically connected to the end of the electrical contact piece 71 of the conductive component 2 400 extending out of the slider 3 through a flexible wire. The clamping column 72 is inserted into the stepped hole 2 33 and the upper end extends into the narrow groove at the upper part of the slide groove group 11. A spring S is pressed in the stepped hole 2 33, and the two ends of the spring S respectively abut against the shoulder in the stepped hole 2 33 and the shoulder of the clamping column 72, so that the clamping rod can be elastically extended;The fastening part is provided with an annular locking piece 8, which is an injection-molded piece. The locking piece 8 is clamped on the outer end of the end cap 2. In this embodiment, the locking piece 8 and the end cap 2 are threadedly connected. An annular claw 81 is provided on the inner circumference of the locking piece 8, and its lower end is a locking wall 811 evenly spaced along the circumference. The inner wall of the locking wall 811 is provided with a raised metal card 812. In this way, the claw 81 will have a certain elasticity. The inner wall of the claw 81 is pre-embedded with a raised card 812. The inner wall of the end of the end cap 2 connected to the locking piece 8 is provided with an inclined inner wall that is larger on the outside and smaller on the inside. When the cable is inserted into the locking piece 8, the claw 81 is stretched open. As the locking piece 8 is rotated on the end cap 2, the claw 81 is squeezed by the inclined inner wall of the end cap 2, so that the claw 81 and its raised card 812 hold the outer insulating sleeve of the cable tightly, thereby achieving the fastening of the cable. When the cable is subjected to external tension, the fastening part can withstand all the tension to protect the stability of the internal wire connection. In a preferred embodiment, a sealing ring K is provided inside the annular end cover 2, and the cable passes through the sealing ring K when inserted, so that a seal is formed between the outer wall of the cable and the inner wall of the end cover 2, and sealing rings K are provided on the outer walls of both ends of the driving member 500, so that a seal is formed between the outer wall of the driving member 500 and the inner wall between the shell 100 and the shell 2 200, respectively. In this way, the interior of the cable connection device of the present application is completely isolated from the outside world, and the waterproof performance is greatly improved.

[0023] In a preferred embodiment, a raised torsion portion 501 is provided on the outer wall of the driving member 500, and fixed arms 12 extending outward and fitting together are provided on both sides of the shell 100 and the shell 2 200. The fixed walls of the shell 100 and the shell 2 200 are connected by screws. In this way, sufficient operating space is left between the fixed arms 12 and the driving member 500, which is convenient for the operator to rotate the driving member 500. When rotating the driving member 500, the operator pinches the fixed arms 12 on both sides with one hand and twists the torsion portion 501 with the other hand.

[0024] When making cable connection, remove the insulating sleeve of the cable at both ends of the appropriate length, put the locking pieces 8 at both ends of the connecting device onto the insulating sleeve of the cable, and insert the multiple strands of wire into the corresponding wire grooves 31 one by one. The embodiment given in the present application and the drawings is to set four wire grooves 31, and then screw the locking piece 8 to fix it on the end cover 2, so that the cables at both ends are fastened; then, through the rotation-driven torsion portion 501, the driving piece 500 drives the driving rod 1 4 and the driving rod 2 5 to move towards each other at the same time, and at the same time, the driving rod 1 4 and the driving rod 2 5 drive their respective sliders 3 to slide, and the slider 3 drives the lower cutting edge 62 and the clamping column 72 to slide. In the initial state, the lower cutting edge 62 and the clamping column 72 are both in a contracted state. Since the depth of the lower wide groove and the depth of the upper narrow groove of the stepped groove are selectively reduced in the direction away from the end cover 2, as the slider 3 slides, first, when the slide bar 611 When the slider 3 is pressed, the semicircular cutting edge 61 of the upper cutting edge 61 extends out of the wire groove 31, and presses the wire together with the lower cutting edge 62. The outer skin of the wire can be peeled off as the slider 3 continues to slide. Then, when the clamping column 72 slides to the position where the depth of the narrow groove at the upper part of the step groove is reduced, the clamping column 72 extends out of the wire groove 31 at the lower end under the pressure of the narrow groove at the upper part of the step groove, and the wire core is firmly pressed on the electrical connector 71, thereby realizing a stable electrical connection between the wire core and the electrical connector 71. Since one end of the electrical connector 71 of the conductive component 1 300 extending out of the slider 3 is electrically connected to the other end of the electrical connector 71 of the conductive component 2 400 extending out of the slider 3 through a one-to-one correspondence through a flexible wire, a stable electrical connection of multiple wires inside the cable is realized. Conversely, when the connector needs to be disassembled, the reverse operation is sufficient, which will not be described in detail here.

[0025] like Figure 7 As shown, in a preferred embodiment, in order to reduce the difficulty of the injection molding process, the slider 3 is composed of an outer slider 34 and a conductive block 35. A concave hole having the same shape as the conductive block 35 is provided on one end surface of the outer slider 34. The conductive block 35 can be fixed in the concave hole by hot-melt welding or screw fixing. The wire groove 31 provided in the conductive block 35 is coaxial and one-to-one corresponding to the wire groove 31 provided in the outer slider 34. An electrical contact piece 71 is fixed on the inner wall of the wire groove 31 of the conductive block 35. A long hole 341 is provided below the wire groove 31 of the outer slider 34. When the conductive block 35 is installed in the outer slider 34, the wire groove 31 of the conductive block 35 and the wire groove 31 of the outer slider 34 form a coaxial circular wire groove 31 that runs through the entire slider 3, and the extended end of the electrical contact piece 71 extends out of the slider 3 through the long hole 341.

[0026] like Figure 12 to Figure 14As shown, in a preferred embodiment, due to the different number of strands of the conductors in the cable, the cable diameters will be different. In order to make the cable connection device of the present application adaptable to cables of different diameters, the claw 81 of the locking member 8 can be designed separately from it. Specifically, the lower end of the annular claw 81 is a locking wall 811 evenly distributed along the circumference, and the inner wall of the locking wall 811 is provided with a raised metal card 812, and the upper end of the claw 81 is provided with an annular stop edge 813, so that the inner wall of one end of the locking member 8 can press the claw 81 along the direction of cable insertion, the claw 81 is coaxially arranged in the locking member 8 and the stop edge of the claw 81 abuts against the inner wall of one end of the locking member 8, and an annular adapter 9 is inserted in the end connected to the locking member 8, and the inner wall of the adapter 9 is provided with an inclined inner wall with a larger outer side and a smaller inner side for squeezing the claw 81, so that the claw 81 It can hold the cable tightly to achieve fastening; when installing the cable, first turn the locking piece 8 and the claw 81 and put them on the cable in sequence, then twist the locking piece 8 to threadably connect with the end cover 2, under the action of the locking piece 8, the claw 81 is gradually pressed into the adapter 9, and the inclined inner wall of the adapter 9 squeezes the claw 81, so that the claw 81 holds the cable tightly to achieve fastening; a sealing ring K is provided on the outer wall of the adapter 9, so that a seal is formed between the outer wall of the adapter 9 and the inner wall of the end cover 2, and a sealing ring K is also installed in the adapter 9, so that after the cable is inserted, a seal is formed between the outer wall of the cable and the inner wall of the adapter 9; when the diameter of the wire remains unchanged, and the cable diameter changes due to an increase or decrease in the number of internal wire strands, it is only necessary to replace the adapter 9 and the claw 81 that are compatible with it, so that the cable connection device of the present application can achieve the effect of adapting to cables of different diameters.

[0027] The beneficial effects of the present invention are as follows: the sliders of the conductive component one and the conductive component two are driven by the driving member to slide simultaneously along the axis in the direction of approaching each other, and the cutting part and the electrical connection part are controlled to extend in sequence under the action of the slide groove group, so as to realize the stripping of the outer skin of the wire and the firm connection between the electrical connection part and the inner core of the wire in sequence; when making cable connections, the operator only needs to insert multiple strands of wire into the corresponding wire grooves one by one, lock the locking member, and then rotate the driving member to complete the task; the connection device of the present application has low technical requirements for the operator, is completely free from dependence on installation equipment or tools, is convenient and fast, and can complete the stripping and connection of multiple strands of wire at the same time with one twist. At the same time, the adaptability to cables of different diameters and the waterproof performance are also greatly improved.

[0028] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A cable connection device, connected to a cable, wherein the cable has a plurality of conductors and an insulating sheath covering all the conductors, characterized in that: include: Shell 1 and shell 2 both have a fastening portion fastened to the insulating sleeve and a cylindrical inner cavity; conductive component 1 is arranged in the inner cavity of shell 1 and can slide along the axial direction of the inner cavity; one end surface thereof is provided with a plurality of wire grooves extending in the axial direction, and the wire grooves are provided with an electrical connection portion and a cutting portion selectively elastically retractable in a direction perpendicular to the axial direction in sequence, and the other end thereof is fixed with a driving rod 1 with a thread; conductive component 2 is arranged in the inner cavity of shell 2 and can slide along the axial direction of the inner cavity; A plurality of wire grooves extending in the axial direction are arranged on the end surface away from the conductive component, and the wire grooves are arranged one by one with the wire grooves arranged on the conductive component one. The wire grooves are arranged in sequence with an electrical connection part and a cutting part which can selectively elastically extend and retract in the direction perpendicular to the axial direction. A second drive rod with threads is fixedly arranged at the other end. The electrical connection part of the conductive component one is electrically connected to the electrical connection part of the conductive component two through a flexible wire one by one. The cylindrical drive member is arranged between the shell one and the shell two in the axial direction and can rotate independently. The two ends of the drive member are respectively threadedly adapted to the drive rod one and the drive rod two. The wires are corresponding to each other and are excessively inserted into the wire groove. The rotation of the driving member to one side can simultaneously drive the conductive component one and the conductive component two to slide in a direction close to each other, so that the cutting portion in the wire groove can extend and peel off the outer skin of the wire, and the electrical connection portion can extend to achieve a stable electrical connection with the inner core of the wire; the rotation of the driving member to the other side can simultaneously drive the conductive component one and the conductive component two to slide in a direction away from each other, so that the cutting portion in the wire groove shrinks and disengages from the clamping cutting of the wire, and at the same time, the electrical connection portion shrinks and disengages from the stable electrical connection with the inner core of the wire.

2. The cable connection device according to claim 1, characterized in that: Two ends of the driving member extend into the first shell and the second shell respectively.

3. The cable connection device according to claim 1, characterized in that: The shell 1 and the shell 2 both include an outer cylinder and an annular end cover fixed to one end of the outer cylinder. The inner wall of the outer cylinder is provided with a slide groove group corresponding to the electrical connection part and the cutting part.

4. The cable connection device according to claim 3, characterized in that: The conductive component 1 and the conductive component 2 also include a cylindrical slider, the wire groove is opened on the slider and penetrates the slider axially, and a plurality of wire grooves are evenly distributed on a circle concentric with the end face of the slider; the driving rod 1 and the driving rod 2 are cylinders with external threads, and are respectively fixedly connected to one end of the slider.

5. The cable connection device according to claim 4, characterized in that: The cutting part includes a lower cutting edge fixedly arranged on the inner wall of the wire groove close to the axis and an upper cutting edge that can be elastically retracted. The lower end of the upper cutting edge and the lower cutting edge are complementary semicircular shapes, and the upper end of the upper cutting edge passes through the slider and extends into the slide groove group.

6. The cable connection device according to claim 4, characterized in that: The electrical connection part includes: an electrical connection piece, which is fixed on the inner wall of the wire groove close to the axis, and one end of which extends out of a slider along the axis direction; a clamping column, which is arranged above the electrical connection piece and can be elastically retracted, and the upper end of the clamping column passes through the slider and extends into the slide groove group.

7. The cable connection device according to claim 6, characterized in that: The slider consists of an outer slider and a conductive block. One end face of the outer slider is provided with a recessed hole that is consistent with the shape of the conductive block. The conductive block is fixed in the recessed hole. The wire groove provided on the conductive block is coaxial and one-to-one corresponding to the wire groove provided on the outer slider. An electrical connector is fixed on the inner wall of the wire groove of the conductive block.

8. The cable connection device according to claim 3, characterized in that: The fastening portion is provided with an annular locking piece, which is clamped on the outer end of the end cover, and the inner periphery of the locking piece is provided with an annular claw.

9. The cable connection device according to claim 8, characterized in that: The clamping claw and the locking piece are designed separately, and a stop edge is provided at one end of the clamping claw, so that the locking piece can press the clamping claw along the direction of cable insertion.

10. The cable connection device according to claim 1, characterized in that: The outer wall of the driving member is provided with a torsion portion, and the first shell and the second shell are provided with fixed arms extending outwards and matching with each other.

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