CN220204538U

CN220204538U - Interlocking conical cable connector

Info

Publication number: CN220204538U
Application number: CN202321954737.8U
Authority: CN
Inventors: 林锡荣; 康岸明
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-12-19
Anticipated expiration: 2033-07-24

Abstract

The utility model relates to an interlocking taper cable connector, which comprises a sleeve-shaped connector main body, wherein an interlocking taper structure is arranged in the connector main body; the interlocking conical structure comprises a middle conical sleeve, and conical nails are arranged in the middle conical sleeve; one end of the connector main body is connected with a cable, and the other end of the connector main body is provided with a terminal; the taper nail is connected with the end head in a collision way, and the taper nail is a tip at one end far away from the end head; in the direction away from the end, the inner diameter of the connector main body and the outer diameter of the middle taper sleeve are gradually reduced, and the outer diameter of the part outside the tip of the taper pin and the inner diameter of the middle taper sleeve are gradually increased; cables are clamped between the taper nails and the middle taper sleeve and between the middle taper sleeve and the connector main body. The scheme adopts a unique interlocking conical structure, fundamentally solves the risk of cable falling out caused by conical structure displacement, realizes stronger bearing tension and stronger clamping force, forms double clamping stress effect, and has stable and reliable clamping effect.

Description

Interlocking conical cable connector

Technical Field

The utility model belongs to the technical field of cable connecting devices, and particularly relates to an interlocking conical cable connector.

Background

Cable connectors are widely used in the fields of construction, communication, electric power, traffic, etc. The main principle of the existing cable connector structure is that the ends of a plurality of strands of wound cables are disassembled, each strand of cables is respectively clamped between a conical outer tube and a clamping plug, and a connecting rod is inserted and connected into a cylindrical cavity at the tail end of the outer tube to realize the firm connection of the cables and the connecting rod; and may in turn be connected to a cable or other component through perforations in the ends of the connecting rods. The main disadvantage of this construction is that during long-term use, if the conical gripping plug is loose, the gripping force to which the cable is subjected is drastically reduced, with the risk of the cable coming out.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the interlocking conical cable connector solves the problem that connection reliability is not strong in the prior art, achieves a more stable cable connection effect, and improves safety of a cable system.

According to the technical scheme of the utility model, the utility model provides an interlocking taper cable connector, which comprises a sleeve-shaped connector main body, wherein an interlocking taper structure is arranged in the connector main body; the interlocking conical structure comprises a middle conical sleeve, and conical nails are arranged in the middle conical sleeve; one end of the connector main body is connected with a cable, and the other end of the connector main body is provided with a terminal; the taper nail is connected with the end head in a collision way, and the taper nail is a tip at one end far away from the end head; in the direction away from the end, the inner diameter of the connector main body and the outer diameter of the middle taper sleeve are gradually reduced, and the outer diameter of the part outside the tip of the taper pin and the inner diameter of the middle taper sleeve are gradually increased; cables are clamped between the taper nails and the middle taper sleeve and between the middle taper sleeve and the connector main body.

Further, the cable comprises a plurality of wires which are scattered at the interlocking conical structure and clamped between the conical nails and the middle conical sleeve, and the wires continue to extend out from one side close to the end head, are outwards folded and are arranged and clamped between the middle conical sleeve and the connector main body; the tail end of the wire is clamped between the middle taper sleeve and the connector main body or extends out of one side of the middle taper sleeve away from the end head; a cable sheath is arranged outside the part where the wire is not dispersed.

Further, the taper nails are connected with the ends through connecting bolts; a bolt connecting hole is formed in the middle of one end of the taper nail, which is far away from the tip, and the bolt connecting hole is in threaded connection with a screw rod of the connecting bolt in a matched manner; a bolt head positioning groove is formed in the middle of one surface of the end head, close to the taper pin, of the end head, and the bolt head of the connecting bolt is embedded into the bolt head positioning groove.

Further, a gasket is arranged between the end head and the middle taper sleeve.

Further, a gasket and a retainer ring are sleeved outside the connecting bolt; the retainer ring is clamped between the washer and the taper pin, and the washer is clamped between the retainer ring and the head of the connecting bolt; the gasket is abutted against the middle taper sleeve at the edge position.

Further, the end head is in threaded connection with the connector body.

Further, the end is in a cover shape with one end being an opening, and the end is covered and arranged outside the connector main body; a sealing ring is sleeved outside the connector main body; in the state that the installation of the end head and the connector body is completed, the sealing ring is positioned at the edge of the opening of the end head, and a seal is formed between the end head and the connector body.

Further, the end head is in a plug shape and is plugged into the connector main body; a sealing ring is sleeved outside the end head; in the state that the end head and the connector body are mounted, the sealing ring is positioned at the edge position of the connector body, and a seal is formed between the connector body and the end head.

Further, a bushing is provided on the cable jacket where the cable is exposed to the interlocking tapered cable connector, the bushing being connected within the connector body.

Further, a tool hole is provided in the outer side surface of the tip, and a tool groove is provided in the outer side surface of the connector body.

Compared with the prior art, the utility model has the main beneficial technical effects that:

1. according to the interlocking tapered cable connector disclosed by the utility model, one tapered clamping plug in the prior art is improved into the nested middle taper sleeve and taper nail, a cable is clamped and fixed between the middle taper sleeve and the taper nail, and a unique connector main body, the middle taper sleeve and the taper nail structure with tapered surfaces in opposite inclined directions are adopted to form a structural interlocking effect, so that the stronger bearing tension and stronger clamping force can be realized, the middle taper sleeve plays a role similar to a wedge between the connector main body and the taper nail, and very tight clamping fit can be ensured during installation; simultaneously, the cable is clamped again between the outside of the middle taper sleeve and the connector main body, so that a double clamping stress effect is formed, and the stable and reliable clamping effect is further ensured.

2. In the working process of the interlocking taper cable connector, even if the interlocking taper structure in the connector main body is displaced, the cable is still in a state of being clamped by the interlocking taper structure, and the interlocking taper structure and the cable can be clamped more tightly under the action of tensile force, so that the risk of cable falling out is fundamentally solved, and the bearing capacity and the safety of a cable system are improved.

3. The interlocking taper cable connector realizes stable connection through double clamping, and cement is not needed, so that repeated installation and detachment can be realized when installation is not in place and installation operation is wrong, fault tolerance is greatly improved, the interlocking taper cable connector is more convenient to use in actual engineering, and the problems that the one-time installation mode such as bonding is difficult or impossible to modify when installation is wrong, and waste of manpower and products is caused or potential safety hazard exists are avoided.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.

Fig. 2 is a schematic perspective view of the embodiment shown in fig. 1.

Fig. 3 is a schematic top view of the structure shown in fig. 2.

Fig. 4 is a schematic cross-sectional view of a further embodiment of the present utility model.

Fig. 5 is a schematic perspective view of the embodiment shown in fig. 4.

Reference numerals in the drawings illustrate:

1. a connector body;

11. a tool slot;

2. a middle taper sleeve;

3. taper nails;

31. a tip;

32. a bolt connection hole;

4. an end head;

41. a connection part;

42. a tool hole;

43. a bolt head positioning groove;

5. a bushing;

6. a seal ring;

7. a gasket;

71. a retainer ring;

8. a connecting bolt;

r, cable;

r1, a wire;

r2, cable sheath.

Detailed Description

The utility model provides an interlocking conical cable connector, which solves the problem of low connection reliability in the prior art, realizes a more stable cable connection effect and improves the safety of a cable system.

Referring to fig. 1, 2 and 3, an interlocking taper cable connector of the present utility model includes a connector body 1 having a taper sleeve shape, and an interlocking taper structure is provided in the connector body 1. The interlocking conical structure comprises a middle conical sleeve 2 in a conical sleeve shape, and a conical nail 3 is arranged in the middle conical sleeve 2. One end of the connector body 1 is connected with a cable R, and the other end of the connector body 1 is provided with a terminal 4. The taper pin 3 is connected with the end head 4 in a collision way, and the taper pin 3 is provided with a tip 31 at one end far away from the end head 4. In the direction away from the tip 4, the inner diameter of the connector body 1 and the outer diameter of the intermediate cone sleeve 2 are gradually reduced and matched, and the outer diameter of the portion other than the tip 31 of the cone nail 3 and the inner diameter of the intermediate cone sleeve 2 are gradually increased and matched. The cable R is held between the taper pin 3 and the intermediate taper sleeve 2 and between the intermediate taper sleeve 2 and the connector body 1.

It should be noted that one of the improvements of the present solution is to clamp the cable R between the spike 3 and the middle taper sleeve 2, and the spike 3 and the middle taper sleeve 2 are assembled and connected together by the tightening action of the assembly or other components, so as to form an interlocking taper structure, which forms an integral body fixedly clamped with the end of the cable R, and the interlocking taper structure is not easily separated from the cable R even when the connector body 1 is not provided on the outside, so that the risk of the cable coming out due to the adoption of the single taper structure in the prior art is fundamentally solved. Meanwhile, due to the matched conical surfaces between the outer side surface of the interlocking conical structure and the inner side surface of the connector main body 1, the interlocking conical structure and the cable can be clamped more tightly under the action of tensile force, and the effects of larger tensile force and stronger clamping force are achieved.

More specifically, the cable R to which the present solution is applicable includes, but is not limited to, a fiber rope, where the cable R includes a plurality of parallel wires R1, and the wires R1 form a core of the cable R, and a cable jacket R2 is wrapped around the core. At the interlocking taper, the cable sheath R2 is stripped, the wire R1 is dispersed and clamped between the spike 3 and the intermediate cone sleeve 2, and the wire R1 continues to extend from the side proximate the tip 4 and is folded outwardly and clamped between the intermediate cone sleeve 2 and the connector body 1. A cable sheath R2 is provided outside the undispersed portion of the wire R1. Thereby forming a double clamping force on the wire R1, further ensuring the reliability of the connection, and eliminating the need for cement, thereby enabling repeatable installation and removal. It is conceivable that other fixing modes of the cable R are performed by adopting the cable connector structure of the present embodiment, for example, if the wire R1 is placed on the outer side of the middle taper sleeve 2, and then turned inwards, and clamped by the taper nails 3, the effect of dual clamping stress effect can be also achieved.

In some possible embodiments, the end of the wire R1 is clamped between the intermediate cone sleeve 2 and the connector body 1; preferably, the end of the wire R1 extends beyond the side of the intermediate cone sleeve 2 remote from the tip 4 (left side in fig. 1). The tail end of the wire R1 extends out of the clamping position between the middle taper sleeve 2 and the connector main body 1 from the front, so that the wire R1 is ensured to have a long enough clamped length, and the positioning connection effect is improved. In practical use, in order to facilitate installation, after the wire R1 is turned outwards, a structure such as a film, an adhesive tape, or the like is wound on the middle taper sleeve 2 and the outer side of the wire R1 for binding, or cement can be injected from the inlet of the cable R on the left side in fig. 1 to fill the cavity of the connector body 1 after installation is completed and before the cable R is plugged into the bushing 5.

Preferably, as shown in fig. 1, the taper pin 3 is connected with the end head 4 through a connecting bolt 8. The middle position of one end of the taper nail 3 far away from the tip 31 is provided with a bolt connecting hole 32 with internal threads, and the bolt connecting hole 32 is in matched threaded connection with a screw rod of the connecting bolt 8. The end 4 is close to the one side central point of awl nail 3 and has offered and be cylindrical bolt head constant head tank 43, and after end 4 and connector main part 1 installation are accomplished, the bolt head of connecting bolt 8 imbeds in bolt head constant head tank 43 to with the tank bottom of bolt head constant head tank 43 inconsistent. The structure can realize installation and jacking through the connecting bolt 8, and simultaneously can also assist in positioning the taper pin 3, ensure that the axes of the taper pin 3, the end head 4 and the connector main body 1 are basically coincident, and is beneficial to improving the stress uniformity of wires R1 distributed circumferentially everywhere.

In some embodiments, a washer 7 is provided between the tip 4 and the intermediate cone 2, the tip 4 being in contact with the intermediate cone 2 via the washer 7, clamping the wire R1 therebetween. Specifically, for the scheme of adopting the connecting bolt 8 as shown in fig. 1, a gasket 7 and a retainer ring 71 are sleeved outside the connecting bolt 8, the retainer ring 71 is clamped between the gasket 7 and the taper pin 3, the gasket 7 is clamped between the retainer ring 71 and the bolt head of the connecting bolt 8, the outer diameter of the retainer ring 71 is smaller than the gasket 7, and the gasket 7 is abutted against the middle taper sleeve 2 at the edge position. The gasket 7 and the retainer ring 71 are made of stainless steel or plastic, for example, and have small friction coefficients, so that friction force between the end head 4 and the middle taper sleeve 2 is reduced, the end head 4 is convenient to install, and the tightening effect of the end head 4 is guaranteed.

In the embodiment shown in fig. 1, the terminal 4 has a cover shape with one end opened, that is, the terminal 4 has a cylindrical sidewall at one side, and the terminal 4 is disposed outside the connector body 1 in a covering manner. The inner side surface of the cover shape of the end head 4 is provided with an internal thread, the outer side surface of the connector main body 1 is provided with a matched external thread, and the end head 4 is in threaded connection with the connector main body 1, so that the connector can bear large axial tension and can be detached. It is contemplated that the header 4 and the connector body 1 may be attached by other means than screws, such as adhesive, screws, dowel pins, etc. The outside of the connector body 1 is provided with a sealing ring groove and sleeved with a sealing ring 6. In the state where the fitting of the header 4 to the connector body 1 is completed, the seal ring 6 is located at the opening edge position of the header 4, and forms a seal between the header 4 and the connector body 1.

In the embodiment shown in fig. 4, the end 4 is in a cylindrical plug shape, an external thread is provided on the outer side surface of the end 4, a matched internal thread is provided on the inner side surface of the connector body 1, and the end 4 is plugged into the connector body 1 by screwing. The outside of the end head 4 is provided with a sealing ring groove and is sleeved with a sealing ring 6. In the state where the fitting of the header 4 to the connector body 1 is completed, the seal ring 6 is located at the edge position of the connector body 1, and forms a seal between the connector body 1 and the header 4.

The sealing rings 6 adopting the two settings provide waterproof and dustproof sealing protection effects, and also provide visual inspection prompts on whether the sealing rings are installed in place, so that installers and maintenance staff can visually and conveniently check the installation connection conditions, the problem that the installation is difficult to find due to the fact that the installation is not up to standard is avoided, the fault tolerance is further improved, and the reliability of cable connection is guaranteed.

Where the cable R is exposed to the interlocking taper cable connector (left end of the connector body 1 in fig. 1), a bushing 5 is externally fitted to the cable sheath R2 of the cable R, and the bushing 5 is connected within the connector body 1. The bushing 5 is a tubular sleeve, and is, for example, in a sealing interference fit with the cable R and the connector body 1, or is connected by bonding or the like. The bushing 5 has three functions: firstly, positioning and protection of the access end of the cable R can be realized through the bushing 5; secondly, the lining 5 can realize waterproof and dustproof sealing at the position; third, in practical use, the bushing 5 may be designed into multiple specifications with different inner diameters, for example, the outer diameters of the multiple bushings 5 are all matched with the connector main body 1, and the inner diameters are respectively matched with the outer diameters of the cables R with multiple specifications, so that the connector main body 1 with the same size can be suitable for cables R with more than two different diameters by replacing the bushings 5 with different specifications. Therefore, the interlocking taper cable connector of the scheme has strong compatibility and high use flexibility, and is beneficial to reducing the design, production and use costs. In addition, the taper pin 3 and the middle taper sleeve 2 can be designed and produced to be different in specification for adapting according to the requirements.

As shown in fig. 1 to 5, a connecting portion 41 is provided on the side of the head 4 remote from the cable R, and the connecting portion 41 has a connecting hole for connecting other members such as a pin or a shackle. The connection portion 41 may be, for example, two ear plates arranged side by side and opposite to each other, or may be only one ear plate, or may be one connection ring, or the like, and may be configured to be capable of connection. Tool holes 42 are circumferentially distributed on the outer side surface of the end head 4, tool grooves 11 are formed on the outer side surface of the connector body 1, and the bottoms of the tool grooves 11 are planes for holding tools conveniently. The tool hole 42 is spaced from the tool groove 11, and in the installed state, the tool hole 42 and the tool groove 11 are exposed to the outside and are not shielded, so that the tool can be conveniently used for screwing and completing the installation or removal work.

In particular embodiments, the connector body 1 and header 4, etc. may be manufactured using a variety of processes and materials, such as hot dip carbon steel, stainless steel, aluminum alloys, copper alloys, plastics, composites, etc. For a cable connector with a load of 3 to 10.5 tons, for example, in the structure shown in fig. 1, the angle of the generatrix of the conical surface where the connector body 1, the middle cone sleeve 2 and the cone nail 3 are matched is about 1.5 degrees relative to the horizontal direction, the total structural length (length from left to right, and the cable R part outside the left end is not considered) is about 130mm to 175mm, and the structure is small and exquisite, and is easy to use in various fields.

Taking the embodiment of fig. 1 as an example, one process for installing and using the interlocking tapered cable connector of the present utility model is as follows. Firstly, a cable R (the outer side of which is sleeved with a bushing 5) penetrates into a connector main body 1 (the outer side of which is provided with a sealing ring 6) and a middle taper sleeve 2 from left to right, the cable sheath R2 at the tail end of the cable R is peeled off, internal wires R1 are scattered, taper nails 3 penetrate into the middle taper sleeve 2 from right to left and are placed in the middle of the wires R1, the wires R1 are basically and uniformly distributed outside the taper nails 3, the taper nails 3 are primarily compacted in the middle taper sleeve 2, and then all the wires R1 are outwards turned and basically and uniformly distributed outside the middle taper sleeve 2; at this time, if the end of the wire R1 is insufficient to protrude from the left end of the middle cone sleeve 2, the structure can be disassembled again, the cable R is moved rightward, and the length of the wire R1 is increased to be reinstalled; winding a plastic film outside the middle taper sleeve 2 and the wire R1, and pre-fixing the wire R1 outside the middle taper sleeve 2 in a fitting manner; the middle taper sleeve 2, the taper nails 3 and the wires R1 between the middle taper sleeve 2 and the taper nails 3 are pressed and fixed by the mounting retainer ring 71, the gasket 7 and the connecting bolts 8; then the cable R, the middle taper sleeve 2 and the taper nails 3 are integrally moved leftwards, and an interlocking taper structure is put into the connector main body 1; the cap-shaped end head 4 is screwed into the right end, when the end head 4 is screwed into the connector body 1 to approach the fastening position, the bolt head of the connecting bolt 8 enters the bolt head positioning groove 43, and then the interlocking taper structure is pushed into the complete fastening position, and the cylindrical edge of the left end of the end head 4 moves to a position of completely pressing the sealing ring 6; at the completion of the installation, the sealing ring 6 should have been fully concealed between the head 4 and the connector body 1 (the length dimensions of the components are so designed) whereby it can be determined whether the installation is in place. Finally, the bushing 5 is inserted into the connector body 1, forming a watertight seal between the cable R and the connector body 1.

Claims

1. An interlocking taper cable connector is characterized by comprising a sleeve-shaped connector main body (1), wherein an interlocking taper structure is arranged in the connector main body (1); the interlocking conical structure comprises a middle conical sleeve (2), and conical nails (3) are arranged in the middle conical sleeve (2); one end of the connector main body (1) is connected with a cable (R), and the other end of the connector main body (1) is provided with a terminal (4); the taper nail (3) is connected with the end head (4) in a collision way, and one end of the taper nail (3) far away from the end head (4) is a tip (31); in a direction away from the tip (4), the inner diameter of the connector body (1) and the outer diameter of the middle taper sleeve (2) are gradually reduced, and the outer diameter of the part of the taper pin (3) except the tip (31) and the inner diameter of the middle taper sleeve (2) are gradually increased; the cable (R) is clamped between the taper pin (3) and the middle taper sleeve (2) and between the middle taper sleeve (2) and the connector main body (1).

2. The interlocking taper cable connector according to claim 1, wherein the cable (R) comprises a plurality of wires (R1), the wires (R1) being split at the interlocking taper and clamped between the taper pin (3) and the intermediate taper sleeve (2), the wires (R1) continuing to extend from a side proximate the tip (4) and being folded outwardly and clamped between the intermediate taper sleeve (2) and the connector body (1); the tail end of the wire (R1) is clamped between the middle taper sleeve (2) and the connector main body (1) or extends out of one side, far away from the end head (4), of the middle taper sleeve (2); a cable sheath (R2) is arranged outside the undeployed part of the wire (R1).

3. Interlocking tapered cable connector according to claim 1, characterized in that the taper pin (3) and the tip (4) are connected by a connecting bolt (8); a bolt connecting hole (32) is formed in the center of one end, far away from the tip (31), of the taper nail (3), and the bolt connecting hole (32) is in threaded connection with a screw rod of the connecting bolt (8) in a matched mode; a bolt head positioning groove (43) is formed in the center of one surface of the end head (4) close to the taper pin (3), and the bolt head of the connecting bolt (8) is embedded into the bolt head positioning groove (43).

4. Interlocking tapered cable connector according to claim 1, characterized in that a washer (7) is provided between the tip (4) and the intermediate cone sleeve (2).

5. An interlocking tapered cable connector according to claim 3, wherein a washer (7) and a retainer ring (71) are provided around the connecting bolt (8); the retainer ring (71) is clamped between the washer (7) and the taper pin (3), and the washer (7) is clamped between the retainer ring (71) and the bolt head of the connecting bolt (8); the gasket (7) is abutted against the middle taper sleeve (2) at the edge position.

6. Interlocking taper cable connector according to any one of claims 1-5, characterized in that the tip (4) is threaded with the connector body (1).

7. The interlocking tapered cable connector according to claim 6, wherein the tip (4) is in a cap shape with one end open, the tip (4) being disposed outside the connector body (1) in a covering manner; a sealing ring (6) is sleeved outside the connector main body (1); in a state where the installation of the end head (4) and the connector body (1) is completed, the sealing ring (6) is positioned at the opening edge position of the end head (4) and forms a seal between the end head (4) and the connector body (1).

8. Interlocking tapered cable connector according to claim 6, characterized in that the tip (4) is in the form of a plug, which is provided inside the connector body (1); a sealing ring (6) is sleeved outside the end head (4); in a state where the fitting of the tip (4) to the connector body (1) is completed, the seal ring (6) is located at an edge position of the connector body (1) and forms a seal between the connector body (1) and the tip (4).

9. Interlocking taper cable connector according to any one of claims 1-5, characterized in that a bushing (5) is provided around the cable (R) at the location where the cable (R) is exposed to the interlocking taper cable connector, the bushing (5) being connected within the connector body (1).

10. Interlocking tapered cable connector according to any one of claims 1-5, wherein a tool hole (42) is provided in the outer side of the tip (4) and a tool groove (11) is provided in the outer side of the connector body (1).