Connecting piece of armored cable

Abstract

The utility model relates to the technical field of cable connectors, in particular to a connecting piece of an armored cable, which comprises a plurality of conductive parts connected with wires, insulating joint pieces fixedly connected to the two ends of the conductive parts, and a wrapping sleeve wrapping the insulating joint pieces and forming an annular groove with the insulating joint pieces, the connector comprises two wrapping sleeves, an insulating tube connecting the two wrapping sleeves, fasteners in threaded connection with the two ends of the insulating tube, and three-point triggering parts arranged on the wrapping sleeves in a penetrating mode, the connector has the advantages of being convenient and fast to install, good in insulating effect and easy and convenient to operate, and the connector has the effects of clamping a wrapper and forming a sealed contact state with a locking ring. The waterproof performance is improved, and the anti-pulling effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connectors, in particular to a connector for an armored cable. Background Art

[0002] The armored cable mechanical protection layer can be added to cables of any structure to increase the mechanical strength of the cable and improve its corrosion resistance. It is designed for wires and cables in areas susceptible to mechanical damage and extremely susceptible to corrosion.

[0003] During the laying of armored cables, a common wiring method is to strip the two cable connection ends that need to be wired, then fully expose the cable, and then wrap the two connected conductors with conductive metal. After wrapping the wiring, it is necessary to wrap it again with insulating tape to make it insulated. Then multiple cables are operated in the above manner. After the whole is completed, the insulating tape is wrapped around the whole. This operation is cumbersome, the installation time is long, and the later maintenance is inconvenient. Utility Model Content

[0004] The purpose of the present invention is to provide a connector for an armored cable to solve the above-mentioned problem.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a connector for an armored cable, comprising: a plurality of conductive parts connecting the conductors, an insulating connector fixedly connected to both ends of the plurality of conductive parts, a wrapping sleeve wrapping the insulating connector and forming an annular groove between the insulating connectors, an insulating tube connecting two of the wrapping sleeves, a fastener threadedly connected to both ends of the insulating tube, and penetrating a three-point trigger part provided on the wrapping sleeve, the three-point trigger part axially moving on the wrapping sleeve, and a locking mechanism provided in the annular groove;

[0006] Wherein, the locking mechanism comprises a wire locking part and a foreskin fastening part, one side of the three-point trigger part contacts the fastener, the wire locking part is arranged on the insulating connector, the foreskin fastening part is embedded in the wrapping sleeve, and the three-point trigger part abuts against the foreskin fastening part;

[0007] The locking ring is sleeved on the cable and is detachably connected to the wrapping sleeve.

[0008] Preferably, the wrapping sleeve includes an insulating sleeve, a socket groove is provided on the circumferential outer wall of the insulating sleeve, the locking ring includes an annular part, a block adapted to the socket groove is provided on one side of the annular part, and an annular protrusion is provided on the outer end of the insulating connector, and the annular protrusion corresponds to the annular part.

[0009] Preferably, an inner wall of the insulating sleeve is provided with an embedded opening, and the inner wall of the embedded opening is elastically connected to a foreskin fastening part through an elastic member, and the foreskin fastening part includes an outer expansion plate, a locking bead is arranged on the inner side of the outer expansion plate, and a guide groove is arranged on one side of the outer expansion plate located at the inner opening.

[0010] Preferably, the insulating connector is provided with channels matching the number of the conductive parts, the wire locking part is provided in the channel, the wire locking part comprises a slip ring, the inner wall of the slip ring is fixedly connected with a guide seat, the guide seat is sleeved in a movable opening opened on the outer wall of the insulating connector, and the movable opening is communicated with the inner cavity of the channel, the movable opening is connected with a guide block through silicone, the guide block is provided with a guide convex surface adapted to the guide seat, the guide block is provided with an opening, and a positioning block is provided on one side of the slip ring.

[0011] Preferably, the three-point trigger part includes a contact block, which is slidable on the insulating sleeve, and is fixedly connected to a spreader rod adapted to the guide groove, and is also fixedly connected to a stop rod in contact with the positioning block.

[0012] Preferably, the end of the conductive part is located in the channel, and the channel has a space reserved for inserting a cable connector.

[0013] The technical effects and advantages of this utility model:

[0014] The connector has the characteristics of convenient installation, good insulation effect and simple operation, and is provided with the effect of clamping the foreskin and forming a sealed contact state with the locking ring, thereby improving the waterproofness and having a good anti-pulling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-point trigger part of the utility model;

[0018] Figure 4 It is a schematic diagram of the wire locking part in the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the practical embodiment to clearly and completely describe the technical solution in the practical embodiment. Obviously, the described embodiment is only a part of the embodiment of the practical embodiment, not all of the embodiments. Based on the embodiment in the practical embodiment, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical embodiment.

[0020] Reference Figures 1 to 4 A connector for an armored cable, comprising: a plurality of conductive parts A for connecting wires, the number of conductive parts A is determined according to the number of internal lines of the armored cable to be actually connected, when the connector is actually produced, the number of lines can be set from 1 to 6, an insulating connector 5 fixedly connected to both ends of the plurality of conductive parts A, when actually used, a sufficiently long portion of the metal conductor of the cable is reserved and inserted into a channel 8 opened on the insulating connector 5, the insulating connector 5 includes but is not limited to ceramics, hard plastics, etc., a wrapping sleeve 1 wrapping the insulating connector 5 and forming an annular groove 6 between the insulating connector 5, the annular groove 6 is used to insert the sheath part of the armored cable, an insulating tube 2 connecting the two wrapping sleeves 1, the insulating tube 2 is located Between the two wrapping sleeves 1, the insulating tube 2 is preferably made of a soft insulating material and is bendable. When the connector is actually used to connect the armored cable, when a bending force is generated during use, the deformation of the connection point can be transferred to the position of the insulating tube 2, thereby avoiding the connection point from slipping. The fasteners 3 are threadedly connected to both ends of the insulating tube 2. When the fasteners 3 rotate, they can approach the wrapping sleeve 1, and then contact the three-point trigger part 10 that is arranged on the wrapping sleeve 1. During the movement, the three-point trigger part 10 moves into the annular groove 6. The three-point trigger part 10 moves axially on the wrapping sleeve 1. A locking mechanism 7 is arranged in the annular groove 6. The three-point trigger part 10 can cause the locking mechanism 7 to be displaced.

[0021] Among them, the locking mechanism 7 includes a wire locking part and a sheath fastening part. The wire locking part is used to clamp the wire inserted into the channel 8. An insulating layer is set at the position of the contact wire. One side of the three-point trigger part 10 is in contact with the fastener 3. The wire locking part is set on the insulating connector 5 and can slide a certain distance in the axial direction. The sheath fastening part is embedded in the wrapping sleeve 1. The three-point trigger part 10 is against the sheath fastening part. After the cable sheath enters the annular groove 6, the sheath fastening part is squeezed by the three-point trigger part 10, and a contact foot that clamps the cable sheath can be formed;

[0022] The locking ring 4 is set on the cable and is detachably connected to the wrapping sleeve 1. When the connector is used, the locking ring 4 is first put on the two ends of the armored cables that need to be connected, and then the ends are stripped.

[0023] In the specific implementation, in order to ensure that the inserted cable has a stable insertion effect, the end of the conductive part A is located in the channel 8, and the outer opening of the channel 8 can be set to be a trumpet shape for easy insertion, and the channel 8 reserves a space for inserting the cable connector. The conductive part A is located in the channel 8 and a trumpet-shaped metal contact piece can be provided. The purpose is that when the wire is inserted, it can enter a parallel tightening state along the trumpet mouth, which is convenient for the operator to identify whether it is fully contacted, and it prevents the cable from detaching during the locking process.

[0024] In one embodiment, the wrapping sleeve 1 includes an insulating sleeve 11, a socket groove 13 is formed on the circumferential outer wall of the insulating sleeve 11, the locking ring 4 includes an annular member 41, a block 42 adapted to the socket groove 13 is provided on one side of the annular member 41, and an annular protrusion is provided on the outer end of the insulating connector 5, and the annular protrusion corresponds to the annular member 41.

[0025] When implementing this embodiment, in order to improve the firmness and stability after wiring, after the foreskin is inserted into the annular groove 6, since the outer end of the insulating connector 5 is provided with an annular protrusion, the annular protrusion will flip the entered peeling outward, so that the flipped end is located in the annular groove 6, and then the annular member 41 is moved toward the annular protrusion, and then the annular protrusion cooperates with the annular member 41 to clamp the foreskin part. At this time, the clamping block 42 is inserted into the socket groove 13 to form a clamping state, and then the stability and firmness of the overall connection can be improved by clamping the foreskin.

[0026] In the above embodiment, in order to ensure that the clamping effect is in the best state, the outer end of the insulating connector 5 is exposed from the wrapping sleeve 1, so that when the annular member 41 contacts the wrapping sleeve 1, the wrapping sleeve 1 passes over the position of the annular raised portion, thereby ensuring that the foreskin is more firmly restricted, and this can also play a waterproof role to prevent water from entering the interior.

[0027] In the above embodiment, since the foreskin is in a single-point clamping state in the annular groove 6, that is, when the pulling force is too large, the foreskin will still slip off. On this basis, an inner wall of the insulating sleeve 11 is provided with an embedded opening 12, and the inner wall of the embedded opening 12 is elastically connected with a foreskin fastening part through an elastic member. The elastic member is an elastic silicone that connects the outer expansion plate 71 to the inner opening 12. The foreskin fastening part includes an outer expansion plate 71, and a locking bead 72 is arranged on the inner side of the outer expansion plate 71. A guide groove 73 is arranged on one side of the outer expansion plate 71 located at the inner opening 12, and an expansion rod 102 adapted to the guide groove 73 is fixedly connected to the contact block 101.

[0028] In this embodiment, after the conductive cable is inserted and the foreskin is inserted into the annular groove 6, the fastener 3 is rotated. During the displacement of the fastener 3, it forms a state of abutment with the contact block 101, and then the contact block 101 is squeezed into the annular groove 6 and moves axially. Then, after the expansion rod 102 enters the guide groove 73 on the outer expansion plate 71, it is guided by the guide groove 73 and the outer expansion plate 71 moves radially, and then the locking bead 72 contacts the surface of the foreskin, and then the foreskin is further locked. In this way, under the condition of pulling force, there will be no detachment.

[0029] In one embodiment, the insulating connector 5 is provided with channels 8 matching the number of the conductive parts A, and a wire locking part is provided in the channel 8. The wire locking part includes a slip ring 74, which is sleeved on the insulating connector 5. The inner wall of the slip ring 74 is fixedly connected with a guide seat 75, and the guide seat 75 is sleeved on the insulating connector 5. Of course, in order to ensure that the wiring is separated more conveniently, the slip ring 74 can be elastically connected in the annular groove 6 along the axial direction, and in the movable opening 9 opened on the outer wall of the insulating connector 5, and the movable opening 9 is connected to the inner cavity of the channel 8, and the movable opening 9 is located between the two passages 8. The movable opening 9 is connected to a guide block 76 through silicone, and the guide block 76 A guide convex surface 77 adapted to the guide seat 75 is provided on the guide block 76, an opening 78 is provided on the guide block 76, and a guide stopper is provided at the position of the opening 78. When the guide block 76 is subjected to a force moving in the radial direction, the opening 78 on the guide block 76 is limited by the guide stopper, and the guide block 76 is deformed into a state of moving into the channel 8, and then can contact the cable in the channel 8, thereby forming a state of restraining the cable. A positioning block 79 is provided on one side of the slip ring 74, and the three-point trigger part 10 includes a contact block 101, which is slidable on the insulating sleeve 11, and a push rod 103 in contact with the positioning block 79 is fixedly connected to the contact block 101.

[0030] During the process of rotating the fastener 3, the push rod 103 pushes the positioning block 79, and then the slip ring 74 slides on the insulating joint 5, and the guide seat 75 on the slip ring 74 moves axially in the movable port 9. When the guide seat 75 contacts the guide block 76 in the movable port 9, the guide block 76 is moved to the radial position of the movable port 9, and then one end of the guide block 76 located in the channel 8 is clamped with the wire, and the function of the guide convex surface 77 can make the guide block 76 form a squeezed state between the push rod 103 and the wire, so that the cable can be clamped, so that the connection operation can be completed.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connector for an armored cable, characterized in that: include: A plurality of conductive parts (A) of a connecting wire, an insulating connector (5) fixedly connected to both ends of the plurality of conductive parts (A), a wrapping sleeve (1) wrapping the insulating connector (5) and forming an annular groove (6) between the insulating connector (5), an insulating tube (2) connecting two of the wrapping sleeves (1), a fastener (3) threadedly connected to both ends of the insulating tube (2), and a three-point trigger part (10) penetrating the wrapping sleeve (1), the three-point trigger part (10) moving axially on the wrapping sleeve (1), and a locking mechanism (7) being arranged in the annular groove (6); The locking mechanism (7) comprises a wire locking portion and a foreskin fastening portion, one side of the three-point trigger portion (10) contacts the fastener (3), the wire locking portion is arranged on the insulating connector (5), the foreskin fastening portion is embedded in the wrapping sleeve (1), and the three-point trigger portion (10) abuts against the foreskin fastening portion; The locking ring (4) is sleeved on the cable and is detachably connected to the wrapping sleeve (1).

2. The connector of an armored cable according to claim 1, characterized in that: The wrapping sleeve (1) comprises an insulating sleeve (11), the circumferential outer wall of the insulating sleeve (11) is provided with a socket groove (13), the locking ring (4) comprises an annular part (41), one side of the annular part (41) is provided with a clamping block (42) adapted to the socket groove (13), and the outer end of the insulating connector (5) is provided with an annular protrusion, and the annular protrusion corresponds to the annular part (41).

3. The connector of an armored cable according to claim 2, characterized in that: The inner wall of the insulating sleeve (11) is provided with an inner embedding opening (12), and the inner wall of the inner embedding opening (12) is elastically connected to a foreskin fastening portion via an elastic member, and the foreskin fastening portion comprises an outer expansion plate (71), a locking bead (72) is arranged on the inner side of the outer expansion plate (71), and a guide groove (73) is arranged on one side of the outer expansion plate (71) located at the inner embedding opening (12).

4. The connector of an armored cable according to claim 3, characterized in that: The insulating connector (5) is provided with channels (8) whose number matches the number of the conductive parts (A), and the wire locking part is provided in the channel (8). The wire locking part comprises a slip ring (74), and a guide seat (75) is fixedly connected to the inner wall of the slip ring (74). The guide seat (75) is sleeved in a movable opening (9) provided on the outer wall of the insulating connector (5), and the movable opening (9) is communicated with the inner cavity of the channel (8). The movable opening (9) is connected to a guide block (76) through silicone, and a guide convex surface (77) adapted to the guide seat (75) is provided on the guide block (76), and an opening (78) is provided on the guide block (76). A positioning block (79) is provided on one side of the slip ring (74).

5. The connector of an armored cable according to claim 4, characterized in that: The three-point triggering part (10) comprises a contact block (101), the contact block (101) is slidable on the insulating sleeve (11), a spreading rod (102) adapted to the guide groove (73) is fixedly connected to the contact block (101), and a stop rod (103) in contact with the positioning block (79) is also fixedly connected to the contact block (101).

6. The connector of an armored cable according to claim 5, characterized in that: The end of the conductive part (A) is located in the channel (8), and the channel (8) has a reserved space for inserting a cable connector.

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