Cable connection device

Abstract

The present invention discloses a cable connection device, which includes a first housing, a second housing, a driving member, a first conductive component and a second conductive component. The first conductive component and the second conductive component are respectively slidably arranged along the axis in the inner cavities of the first housing and the second housing, and a plurality of wire grooves penetrating in the axial direction are provided on one end surface thereof. An electrically connecting part and a cutting part which are selectively elastically telescopic are sequentially arranged in the wire grooves; by driving the first conductive component and the second conductive component to slide simultaneously along the axis in the direction of approaching each other through the driving member, the cutting part and the electrically connecting part are selectively extended out in sequence, so as to realize the peeling of the wire outer skin and the firm connection between the electrically connecting part and the wire inner core; when connecting the cable, the operator only needs to insert the wires into the wire grooves in excess one by one, and rotate the driving member to complete the connection; 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 simultaneously complete the peeling and connection of multiple strands of wires by one turn.

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 in the embodiment of the present invention is as follows:

[0006] A cable connection device is connected to a cable. The cable has a plurality of strands of wires and an insulating sleeve covering all the wires, and includes: a first housing and a second housing, both having a fastening portion fastened to the insulating sleeve and a cylindrical inner cavity; a first conductive component disposed in the inner cavity of the first housing and capable of sliding along the axial direction of the inner cavity; on one end surface thereof, a plurality of wire grooves penetrating along the axial direction are provided, and in the wire grooves, an electrical connection portion and a cutting portion capable of selectively elastically expanding and contracting in a direction perpendicular to the axis are sequentially provided, and on the other end thereof, a driving rod one with a thread is fixedly provided; a second conductive component disposed in the inner cavity of the second housing and capable of sliding along the axial direction of the inner cavity; on the end surface away from one end thereof, a plurality of wire grooves penetrating along the axial direction are provided, and are in one-to-one correspondence with the wire grooves provided on the first conductive component, and in the wire grooves, an electrical connection portion and a cutting portion capable of selectively elastically expanding and contracting in a direction perpendicular to the axis are sequentially provided, and on the other end thereof, a driving rod two with a thread is fixedly provided; the electrical connection portion of the first conductive component and the electrical connection portion of the second conductive component are electrically connected to each other through flexible wires in one-to-one correspondence; a cylindrical driving member is disposed between the first housing and the second housing along the axial direction and can rotate independently, and its two ends are respectively threadedly fitted and connected with the driving rod one and the driving rod two; the wires are inserted into the wire grooves in one-to-one correspondence and in excess, and when the driving member rotates to one side, it can simultaneously drive the first conductive component and the second conductive component to slide in a direction approaching each other, so that the cutting portions in the wire grooves can extend out to peel off the wire outer skin, and the electrical connection portions can extend out to achieve a firm electrical connection with the wire inner cores; when the driving member rotates to the other side, it can simultaneously drive the first conductive component and the second conductive component to slide in a direction away from each other, so that the cutting portions in the wire grooves contract to disengage from clamping and cutting the wires, and at the same time, the electrical connection portions contract to disengage from the firm electrical connection with the wire inner cores.

[0007] Preferably, both ends of the driving member respectively extend into the first housing and the second housing, and seals are respectively formed between the outer walls of both ends of the driving member and the inner walls of the first housing and the second housing.

[0008] Preferably, both the first housing and the second housing include an outer cylinder and an annular end cover fixed to one end of the outer cylinder, and a chute group corresponding to the electrical connection portion and the cutting portion one by one is provided on the inner wall of the outer cylinder.

[0009] Preferably, the first conductive component and the second conductive component further include cylindrical sliders. The wire grooves are provided on the sliders and penetrate through the sliders along the axial direction, and a plurality of wire grooves are evenly distributed on a circle concentric with the end surface of the slider; the driving rod one and the driving rod two are cylinders with external threads and are respectively fixedly connected to one end of the slider.

[0010] Preferably, the cutting part includes a lower cutting edge fixedly arranged on the inner wall of the wire groove close to the axis side and an upper cutting edge capable of elastic expansion and contraction. The lower end of the upper cutting edge and the lower cutting edge are complementary semi-circular shapes, and the upper end of the upper cutting edge penetrates through the slider and extends into the chute group.

[0011] Preferably, the electrical connection part includes: an electrical connection piece fixedly arranged on the inner wall of the wire groove close to the axis side, and one end extends out of the slider along the axis direction; a pressing column arranged above the electrical connection piece and capable of elastic expansion and contraction, and the upper end of the pressing column penetrates through the slider and extends into the chute group.

[0012] Preferably, the slider is composed of an outer slider and a conductive block. A concave hole with the same shape as the conductive block is arranged on one end face of the outer slider, and the conductive block is fixedly arranged in the concave hole. The wire grooves arranged on the conductive block and the wire grooves arranged on the outer slider are coaxial and correspond one by one; an electrical connection piece is fixedly arranged on the inner wall of the wire groove of the conductive block.

[0013] Preferably, the fastening part is provided with an annular locking piece, the locking piece is clamped on the outer end of the end cover, and the inner circumference of the locking piece has an annular claw.

[0014] Preferably, the claw and the locking piece are designed separately, and a stop edge is arranged at one end of the claw, so that the locking piece can press the claw along the direction of cable insertion.

[0015] Preferably, a torsion part is arranged on the outer wall of the driving part, and the housing one and the housing two are provided with fixed arms extending outwards and matching with each other.

[0016] Preferably, a seal is formed between the inner wall of the annular end cover and the outer wall of the cable.

[0017] Compared with the prior art, the beneficial effects of the cable connection device provided by the embodiment of the present invention are as follows:

[0018] 1. By driving the sliders of the conductive component one and the conductive component two by the driving part to slide towards each other along the axis at the same time, and under the action of the chute group, the cutting part and the electrical connection part are controlled to extend out in sequence, so as to realize the peeling of the wire outer skin and the stable connection between the electrical connection part and the wire inner core in sequence; when connecting the cable, the operator only needs to insert multiple strands of wires into the corresponding wire grooves in excess one by one, lock the locking piece, and then rotate the driving part to complete; the connection device of the present application has low technical requirements for the operator, completely gets rid of the dependence on installation equipment or tools, is convenient and fast, and can complete the peeling and connection of multiple strands of wires at the same time with one turn. 2. The claw of the locking piece is set to be a structure capable of elastic expansion and contraction in the radial direction, which can meet the use of cables with different numbers of wire strands and different diameters. 3. The setting of the seal part one and the seal part two makes the inside of the connector form a waterproof isolation from the outside world, greatly improving the waterproof performance of the connector. Description of the Drawings

[0019] Figure 1 The structural exploded view of the cable connection device provided by the embodiment of the present invention. Figure 2 The three-dimensional structure diagram of the cable connection device provided by the embodiment of the present invention. Figure 3 The sectional view of the cable connection device provided by the embodiment of the present invention (initial state of cable connection). Figure 4 The sectional view of the cable connection device provided by the embodiment of the present invention (final state of cable connection). Figure 5 The right view of the cable connection device provided by the embodiment of the present invention. Figure 6 The three-dimensional structure diagram of the conductive component provided by the embodiment of the present invention. Figure 7 The structural exploded view of the conductive component provided by the embodiment of the present invention. Figure 8 The structural sectional view of the conductive component provided by the embodiment of the present invention. Figure 9 The right view of the structure of the outer cylinder provided by the embodiment of the present invention. Figure 10 The structural sectional view of the outer cylinder provided by the embodiment of the present invention. Figure 11 The three-dimensional structure diagram of the locking member provided by the embodiment of the present invention. Figure 12 The structural sectional view of the fastening part provided by the embodiment of the present invention (the locking member and the claw are designed separately). Figure 13 The structural exploded view of the fastening part provided by the embodiment of the present invention (the locking member and the claw are designed separately). Figure 14 The three-dimensional structure diagram of the claw provided by the embodiment of the present invention.

[0020] In the figure: 100 - housing one; 200 - housing two; 300 - conductive component one; 400 - conductive component two; 500 - driving member; 1 - outer cylinder; 2 - end cover; 3 - slider; 4 - driving rod one; 5 - driving rod two; 6 - cutting part; 7 - electrical connection part; 8 - locking member; 9 - adapter; 10 - fastening part; 11 - chute group; 12 - fixed arm; 31 - wire groove; 32 - stepped hole one; 33 - stepped hole two; 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 - sliding rod; 811 - locking wall; 812 - card; 813 - stop edge; S - spring; K - sealing ring; D - flexible wire. Detailed implementation manners

[0021] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", etc. is based on the positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0023] Such as Figures 1 to 2As shown in the figure, an embodiment of the present invention discloses a cable connection device, which is connected to a cable. The cable has a plurality of strands of wires and an insulating sleeve covering all the wires, and includes: a first housing 100 and a second housing 200, both of which have a fastening portion fastened to the insulating sleeve and a cylindrical inner cavity; a first conductive component 300, disposed in the inner cavity of the first housing 100 and capable of sliding along the axial direction of the inner cavity; a plurality of wire grooves 31 penetrating in the axial direction are provided on one end surface thereof. An electrical connection portion 7 and a cutting portion 6 capable of selectively elastically expanding and contracting in a direction perpendicular to the axial direction of the inner cavity are sequentially provided in the wire groove 31. A driving rod 4 with a thread is fixedly provided at the other end thereof; a second conductive component 400, disposed in the inner cavity of the second housing 200 and capable of sliding along the axial direction of the inner cavity; a plurality of wire grooves 31 penetrating in the axial direction are provided on the end surface away from it, and are in one-to-one correspondence with the wire grooves 31 provided on the first conductive component 300. An electrical connection portion 7 and a cutting portion 6 capable of selectively elastically expanding and contracting in a direction perpendicular to the axial direction of the inner cavity are sequentially provided in the wire groove 31. A driving rod 2 with a thread is fixedly provided at the other end thereof; the electrical connection portion 7 of the first conductive component 300 is electrically connected to the electrical connection portion 7 of the second conductive component 400 through a flexible wire D in one-to-one correspondence; a cylindrical driving member 500 is disposed between the first housing 100 and the second housing 200 along the axial direction and can rotate independently. The two ends thereof are respectively threadedly engaged with the driving rod 4 and the driving rod 2; the wires are inserted into the wire grooves 31 in one-to-one correspondence and in excess. When the driving member 500 rotates to one side, it can simultaneously drive the first conductive component 300 and the second conductive component 400 to slide in a direction approaching each other, so that the cutting portion 6 in the wire groove 31 can extend out to peel off the wire outer skin, and the electrical connection portion 7 extends out to achieve a firm electrical connection with the wire inner core; when the driving member 500 rotates to the other side, it can simultaneously drive the first conductive component 300 and the second conductive component 400 to slide in a direction away from each other, so that the cutting portion 6 in the wire groove 31 contracts and disengages from clamping and cutting the wire, and at the same time, the electrical connection portion 7 contracts and disengages from the firm electrical connection with the wire inner core.

[0024] As Figures 3 to 11In a preferred embodiment, the first housing 100 and the second housing 200 both include an outer cylinder 1 and an annular end cap 2 fixedly provided at one end of the outer cylinder 1. Both the outer cylinder 1 and the end cap 2 are made of insulating materials. In this embodiment, the outer cylinder 1 and the end cap 2 are injection-molded parts. A plurality of chute groups 11 corresponding to the wire grooves 31 one by one are provided on the inner wall of the outer cylinder 1. The chute group 11 is a stepped groove that is wider at the bottom and narrower at the top. The stepped groove is axially provided, and the depths of the wide groove at the lower part and the narrow groove at the upper part are selectively reduced in the direction away from the end cap 2; both ends of the driving member 500 extend into the first housing 100 and the second housing 200 respectively. The first conductive assembly 300 and the second conductive assembly 400 both are provided with cylindrical sliders 3. The first driving rod 4 and the second driving rod 5 are cylinders provided with external threads and are respectively fixedly connected to one end of the slider 3. The two ends of the driving member 500 are provided with internal threads respectively adapted to the first driving rod 4 and the second driving rod 5, and the thread adaptation directions of the first driving rod 4 and the second driving rod 5 are opposite. In this way, when the driving member 500 is rotated in one direction, the first driving rod 4 and the second driving rod 5 can be moved in the direction of approaching each other. In this embodiment, the first driving rod 4, the second driving rod 5 and the slider 3 are all injection-molded parts, and the first driving rod 4 and the second driving rod 5 are integrally formed with their respective corresponding sliders 3; a plurality of wire grooves 31 are axially penetrated on the slider 3 and are evenly distributed on a circle concentric with the end face of the slider 3. A first stepped hole 32 and a second stepped hole 33 perpendicular to the axial direction are provided directly above each wire groove 31. The cutting part 6 includes a lower cutting edge 62 fixedly provided on the inner wall of the wire groove 31 close to the axis and an upper cutting edge 61 that can elastically expand and contract. The lower end of the upper cutting edge 61 and the lower cutting edge 62 are complementary semi-circular shapes. The lower cutting edge 62 can be pre-embedded in the wire groove 31 during the injection molding of the slider 3. The upper end of the upper cutting edge 61 is provided with a slide rod 611. The slide rod 611 is located in the first stepped hole 32 and the top end extends into the wide groove at the lower part of the stepped groove. A spring S is press-fitted in the first stepped hole 32. Both ends of the spring S respectively abut against the shoulder of the inner wall of the first stepped hole 32 and the shoulder of the slide rod 611. In this way, the lower cutting edge 62 can elastically expand and contract; the electrical connection part 7 includes an electrical connection piece 71 made of conductive metal and a pressing column 72. The electrical connection piece 71 is fixedly provided on the inner wall of the wire groove 31 close to the axis and one end extends out of the slider 3 along the axial direction. The end of the electrical connection piece 71 of the first conductive assembly 300 extending out of the slider 3 is electrically connected to the end of the electrical connection piece 71 of the second conductive assembly 400 extending out of the slider 3 through flexible wires one by one. The pressing column 72 is inserted into the second stepped hole 33 and the upper end extends into the narrow groove at the upper part of the chute group 11. A spring S is press-fitted in the second stepped hole 33. Both ends of the spring S respectively abut against the shoulder in the second stepped hole 33 and the shoulder of the pressing column 72. In this way, the pressing rod can elastically expand and contract;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.

[0025] 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.

[0026] 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.

[0027] When making a cable connection, remove the insulating sleeves of appropriate lengths at both ends of the cable. Slip the locking members 8 at both ends of the connecting device onto the insulating sleeves of the cable, and insert each strand of the multi-strand wire into the corresponding wire groove 31 in excess. In the embodiment given in the present application and the accompanying drawings, 4 wire grooves 31 are provided. Then, screw the locking member 8 onto the end cap 2, thus achieving the fastening of the cables at both ends. Next, through the twisting portion 501 driven by rotation, the driving member 500 drives the first driving rod 4 and the second driving rod 5 to move towards each other simultaneously. At the same time, the first driving rod 4 and the second driving rod 5 drive their respective sliders 3 to slide. The slider 3 drives the lower cutting edge 62 and the pressing column 72 to slide. In the initial state, both the lower cutting edge 62 and the pressing column 72 are in a contracted state. Since the depth of the lower wide groove and the depth of the upper narrow groove of the stepped groove both selectively decrease in the direction away from the end cap 2, as the slider 3 slides, first, when the sliding rod 611 of the upper cutting edge 61 slides to the position where the depth of the lower wide groove of the stepped groove decreases, the lower semi-circular cutting edge of the sliding rod 611 of the upper cutting edge 61 extends out of the wire groove 31 under the extrusion of the lower wide groove of the stepped groove, and jointly presses the wire with the lower cutting edge 62. Along with the continuous sliding of the slider 3, the peeling of the wire outer skin can be achieved. Immediately afterwards, when the pressing column 72 slides to the position where the depth of the upper narrow groove of the stepped groove decreases, the lower end of the pressing column 72 extends out of the wire groove 31 under the extrusion of the upper narrow groove of the stepped groove, and tightly presses the wire core onto the electrical connection piece 71, realizing the stable electrical connection between the wire core and the electrical connection piece 71. Since the end of the electrical connection piece 71 of the first conductive component 300 extending out of the slider 3 is electrically connected to the end of the electrical connection piece 71 of the second conductive component 400 extending out of the slider 3 one by one through flexible wires, in this way, the stable electrical connection of the multi-strand wires inside the cable is achieved. On the contrary, when it is necessary to disassemble the connector, just operate in the reverse direction, which will not be elaborated here in detail.

[0028] As Figure 7 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 with the same shape as the conductive block 35 is provided on one end face of the outer slider 34. The conductive block 35 can be fixed in the concave hole by means of hot melt welding or screw fixing, etc. The wire grooves 31 provided on the conductive block 35 are coaxial and correspond one by one with the wire grooves 31 provided on the outer slider 34. The electrical connection piece 71 is fixedly provided on the inner wall of the wire groove 31 of the conductive block 35. Long strip holes 341 are provided below the wire grooves 31 of the outer slider 34. When the conductive block 35 is installed into the outer slider 34, the wire grooves 31 of the conductive block 35 and the wire grooves 31 of the outer slider 34 form a circular wire groove 31 that is coaxial and penetrates the entire slider 3, and the extending end of the electrical connection piece 71 extends out of the slider 3 through the long strip hole 341.

[0029] As Figures 12 to 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.

[0030] 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.

[0031] 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 are provided on the end face away from the end face, which are connected in the axial direction and correspond to the wire grooves provided in the conductive component one. The wire grooves are provided with an electrical connection part and a cutting part which can selectively elastically extend and retract in a direction perpendicular to the axial direction in sequence, and a driving rod two with threads is fixed on the other end; the electrical connection part of the conductive component one and the electrical connection part of the conductive component two are electrically connected in a one-to-one correspondence through flexible wires; a cylindrical driving member is provided between the shell one and the shell two in the axial direction and can rotate independently, and its two ends are respectively threadedly adapted to the driving rod one and the driving rod two; the wires correspond to each other and are excessively inserted into the wire grooves, and the driving member can simultaneously drive the conductive component one and the conductive component two to slide in a direction close to each other by rotating to one side, 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 driving member can simultaneously drive the conductive component one and the conductive component two to slide in a direction close to each other by rotating to the other side The electrical components 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; the shell one and the shell two both include an outer cylinder and an annular end cap fixedly arranged at 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 one by one; the conductive components one and the conductive components two also include a cylindrical slider, the wire groove is arranged 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 cutting part includes a lower cutting edge fixedly arranged on the inner wall of the wire groove on the side 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 penetrates the slider and extends into the slide groove group; the electrical connection part includes: an electrical contact sheet, which is fixedly arranged on the inner wall of the wire groove on the side close to the axis, and one end extends out of the slider along the axis direction; The clamping column is arranged above the electrical contact piece and can be elastically retracted. The upper end of the clamping column penetrates the slider and extends into the slide groove group.

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 driving rod 1 and the driving rod 2 are cylinders with external threads and are respectively fixedly connected to one end of the sliding block.

4. The cable connection device according to claim 3, 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.

5. The cable connection device according to claim 1, 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.

6. The cable connection device according to claim 5, 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.

7. 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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