Cable connector

Abstract

The cable connector comprises a connector body in a hollow sleeve shape, a middle taper sleeve in a conical sleeve shape is arranged in the connector body, a conical nail is arranged in the middle taper sleeve, one end of the conical nail is a conical nail tip, and the other end of the conical nail is a conical nail head. The cable penetrates into the connector main body from one side facing the tip end of the conical nail; wires for forming the cable are dispersed at the tip of the conical nail, and each wire is clamped between the conical nail and the middle conical sleeve and between the middle conical sleeve and the connector main body; one side, close to the conical nail head, of the connector main body is connected with an end head; and a connecting part is arranged on the connector main body and / or the end socket. According to the scheme, the wire of the cable has double clamping stress effects, stable and reliable connection is achieved, no adhesive needs to be used, and therefore the effect of repeated mounting and dismounting can be achieved, the bearing capacity and safety of a cable system are improved, the error-tolerant rate is increased, and the cable system can be conveniently used in actual engineering.

Description

Technical Field

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

[0002] Cable connectors are widely used in fields such as construction, communication, electricity, and transportation. A cable connector has a fixed cable installed at one end and a connection hole at the other end, so as to connect a cable to other components such as a pin or a shackle.

[0003] An existing cable connector, for example, the British invention patent with application publication number GB2236546A, has a structural principle of inserting a conical component into the end of the loose wire of the cable, and the conical component is installed in a conical tube, applying adhesive on the wire of the cable, clamping the wire between the conical component and the conical tube before the adhesive solidifies, and then inserting a plug into the end of the conical tube to close the connector.

[0004] The design, product quality and installation technology of the cable connector itself have a direct impact on the performance and reliability of the cable system. Workers are usually required to strictly follow the product installation instructions during construction and installation, especially placing high demands on the technical proficiency and concentration of construction workers.

[0005] The above-mentioned prior art solution disperses the wires for clamping, which is obviously more dispersed and uniform in force than another more common prior art solution (such as the Chinese utility model patent with the authorization announcement number CN211809193U, whose structural principle is to insert the cable as a whole into the wire clamp and then clamp the cable from the outside to the inside through the conical structure), which is conducive to achieving a more stable connection. However, its defects are also quite obvious: it has high requirements for construction personnel, and it is difficult to judge whether the conical component and the small plug are installed in place. In addition, the cable may come out from between the conical component and the conical cylinder during use, resulting in connection failure.

[0006] Due to the low fault tolerance of the above-mentioned prior art products and the constraints of the conditions of on-site construction personnel, substandard installation and potential defects often occur. Since this problem is not easy to be detected in time, it eventually leads to accidents of varying sizes. Therefore, this type of cable connector has been criticized by the industry for many years, restricting the further development, promotion and application of this type of structure. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a cable connector to solve the problems of substandard installation and low reliability of the cable system in the prior art solutions, so as to achieve a more stable cable connection effect.

[0008] According to the technical solution of the present invention, the present invention provides a cable connector, which includes a connector body in the shape of a hollow sleeve, an intermediate cone sleeve in the shape of a conical sleeve is arranged in the connector body, a cone nail is arranged in the intermediate cone sleeve, one end of the cone nail is the cone nail tip, and the other end of the cone nail is the cone nail head; the cable is inserted into the connector body from the side facing the cone nail tip; the wires used to form the cable are dispersed at the cone nail tip, and each wire is clamped between the cone nail and the intermediate cone sleeve and between the intermediate cone sleeve and the connector body; the connector body is connected to an end on the side close to the cone nail head; and a connecting portion is provided on the connector body and / or the end. In this solution, the wires of the cable have two relatively long distances of close clamping contact between the cone nail and the intermediate cone sleeve, and between the intermediate cone sleeve and the connector body, which has a double clamping force effect, realizes a stable and reliable connection, and does not need to use adhesives, thereby achieving the effect of repeatable installation and removal.

[0009] Furthermore, the front half of the dispersed wire far from the end is clamped between the cone nail and the middle cone sleeve, and the rear half of the dispersed wire near the end extends outward on the side close to the cone nail head, folds outward, and is clamped between the middle cone sleeve and the connector body; the end of the wire is clamped between the middle cone sleeve and the connector body, or preferably extends outward on the side of the middle cone sleeve close to the tip of the cone nail. The end of the wire is extended out of the clamping position to ensure a sufficiently long clamping distance and improve the positioning connection effect.

[0010] Preferably, a bushing is provided on the cable outer shell at the position where the cable is exposed from the cable connector, and the bushing is connected to the connector body. The cable access end can be positioned and protected by the bushing, and the bushing can be set with different inner diameters, so that the same connector body can be used for more than two cables of different diameters by replacing the bushing, thereby improving the compatibility and use flexibility of the cable connector and reducing the production and use costs.

[0011] According to some embodiments, in the direction from the tip of the cone nail to the head of the cone nail, the outer side of the cone nail, the inner side and outer side of the middle cone sleeve, and the inner side of the connector body all gradually increase in diameter. When the tension on the cone structures increases, the clamping force between the cone structures also increases.

[0012] Alternatively, in other embodiments, in the direction from the tip of the cone nail to the head of the cone nail, the outer diameter of the portion of the cone nail other than the tip of the cone nail gradually decreases, the inner diameter of the middle cone sleeve gradually decreases, the outer diameter of the middle cone sleeve gradually increases, and the inner diameter of the connector body gradually increases. This staggered design of the inclined directions of the conical slopes has the effect of structural interlocking, which can not only achieve stronger tension and clamping force, but also ensure a very tight clamping fit during installation.

[0013] Furthermore, the terminal is nested inside or outside the connector body. These two optional solutions can meet different usage habits or usage scenarios.

[0014] Furthermore, a sealing ring is provided between the terminal and the connector body; the sealing ring is located at the edge of the opening of the nested structure formed by the terminal and the connector body. In addition to providing a waterproof and dustproof sealing protection effect, this type of sealing ring also provides a visual reminder of whether it has been installed in place, that is, the sealing ring should be completely covered after installation, so that the installation status can be checked intuitively and conveniently to ensure that the installation meets the standards.

[0015] Furthermore, the end is connected to the connector body by a thread. The thread method can ensure a stable connection and withstand a sufficiently large tensile force, and (compared with other connection methods such as adhesive bonding) can also achieve a mature mechanized production process, fast installation operation, and repeated loading and unloading.

[0016] Furthermore, the end contacts the cone nail and / or the middle cone sleeve, thereby providing a tightening force during installation to ensure the clamping of the wire.

[0017] Furthermore, a gasket is provided between the end and the cone nail and / or the middle cone sleeve, which helps to reduce the friction between the end and the cone nail and / or the middle cone sleeve, thereby facilitating the installation of the end and also helping to ensure the tightening effect of the end.

[0018] Furthermore, the cone nail and the end head are in contact or connected via the abutting connector; the gasket has a through hole and is sleeved outside the abutting connector. The cone nail and the end head are in contact via the abutting connector, and the middle cone sleeve and the end head are in contact via the gasket, and the wire is clamped therebetween, which helps to improve the wire clamping effect; in addition, the abutting connector can realize auxiliary positioning of the cone nail, ensure that the axes of the cone nail, the end head and the connector body are basically coincident, which helps to improve the uniformity of the force on the wire.

[0019] Compared with the prior art, the main beneficial technical effects of the present invention are as follows:

[0020] 1. The cable connector of the present invention is provided with an intermediate cone sleeve, so that the wire forms two relatively long distances of close clamping contact between the cone nail and the intermediate cone sleeve and between the intermediate cone sleeve and the connector body, which has a double clamping force effect; and the length of the cone nail in this scheme is about 130% or more of the length of the cone nail in such prior art schemes, and the effective length and net contact surface of each section of wire clamping force are increased by the same proportion; a more stable and reliable connection is achieved, the risk of accidents caused by cable detachment is effectively avoided, and the carrying capacity and safety of the cable system are improved.

[0021] 2. The cable connector of the present invention achieves a stable connection through double clamping, so that there is no need to use adhesives. For example, when the installation is not in place or the installation operation is wrong, it can be repeatedly installed and removed, which greatly improves the fault tolerance rate and is more convenient for use in actual projects. It also avoids the problem that one-time installation methods such as bonding are difficult or impossible to modify when installation errors occur, resulting in waste of manpower and products or safety hazards.

[0022] 3. The cable connector of the present invention preferably adopts a specific sealing ring position, which provides a waterproof and dustproof sealing protection effect on the one hand, and can also serve as an identification line for installation in place on the other hand. If the sealing ring is completely covered, it means that the installation is in place, which is convenient for installers and maintenance personnel to check the installation and connection status intuitively and conveniently, avoiding problems that are easy to be installed but difficult to find, further improving the fault tolerance rate and ensuring the reliability of the cable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic cross-sectional structural diagram of an embodiment of the present invention.

[0024] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the embodiment shown.

[0025] Figure 3 It is a cross-sectional structural schematic diagram of another embodiment of the present invention.

[0026] Figure 4 It is a schematic cross-sectional structural diagram of yet another embodiment of the present invention.

[0027] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure of the embodiment shown.

[0028] Figure 6 It is a schematic cross-sectional structural diagram of another embodiment of the present invention.

[0029] Figure 7 It is a cross-sectional structural schematic diagram of another embodiment of the present invention.

[0030] Description of reference numerals in the accompanying drawings:

[0031] 1. Connector body;

[0032] 2. Middle cone sleeve;

[0033] 3. Cone nails;

[0034] 31. Cone nail tip;

[0035] 32. Cone nail head;

[0036] 4. End;

[0037] 41. Connecting part;

[0038] 42. Tool hole;

[0039] 5. Bushing;

[0040] 6. Sealing ring;

[0041] 7. Gasket;

[0042] 8. Push against the connecting piece;

[0043] 9. Disassembly tools;

[0044] R, cable;

[0045] R1, thread. DETAILED DESCRIPTION

[0046] The present invention provides a cable connector, which solves the problems of substandard installation and low reliability of the cable system in the prior art solutions, so as to achieve a more stable cable connection effect.

[0047] See also Figure 1 , Figure 2 A cable connector according to an embodiment of the present invention comprises a connector body 1 in the shape of a hollow sleeve, a middle cone sleeve 2 in the shape of a cone sleeve is inserted into the connector body 1, and the inner side surface of the connector body 1 is cone-shaped and matches the outer side surface of the middle cone sleeve 2. A cone nail 3 is inserted into the middle cone sleeve 2, and the outer side surface of the cone nail 3 matches the inner side surface of the middle cone sleeve 2. One end of the cone nail 3 ( Figure 1 The left end in the middle is the cone nail tip 31, and the other end of the cone nail 3 is the cone nail head 32. The cable R is from one side (the left end) toward the cone nail tip 31. Figure 1 The left side in the middle) is inserted into the connector body 1. The wires R1 used to form the cable R are evenly dispersed at the tip 31 of the cone nail, and each wire R1 is clamped between the cone nail 3 and the middle cone sleeve 2 and between the middle cone sleeve 2 and the connector body 1. Thus, the wires R1 have a double clamping force effect, and there is no need to use adhesives, which has the advantage of being repeatable for installation and removal. Preferably, a rough surface is used on the outer side of the cone nail 3, the inner side and / or the outer side of the middle cone sleeve 2, for example, a circular concave-convex texture is distributed, so that the surface forms a serrated structure, thereby increasing the friction.

[0048] It should be noted that, in the present scheme, the cable R and the wire R1 should be understood in a broad sense: the wire R1 is the main component of the cable R, such as various types of fibers or metal wires, and a plurality of wires R1 together form a rope that can withstand tension, and the rope may be covered with a cable sheath (if there is a sheath, the sheath will be disconnected and peeled off near the position where the wires R1 are dispersed, so as not to hinder the dispersion of the wires R1); different types of cables may have different specific structures.

[0049] And, the cone nail tip 31 should be understood in a broad sense: it refers to the portion at the end of the cone nail 3, whose outer diameter gradually decreases as a whole, and its function is to facilitate the dispersion of the wire R1 and provide a smooth transition to avoid stress concentration caused by the wire R1 contacting the edge with a small angle. The cone nail tip 31 is preferably conical, and can also be a pyramid, and the end can also be a round head that is not sharp, etc. Various specific structures formed by adjusting on the basis of similar cones are all acceptable.

[0050] More specifically, in Figure 1 In the illustrated embodiment, the front half of the dispersed wire R1 away from the end is clamped between the cone nail 3 and the middle cone sleeve 2, and then the rear half of the dispersed wire R1 near the end extends on the side close to the cone nail head 32, folds outward, and is clamped between the middle cone sleeve 2 and the connector body 1. It is conceivable that in other embodiments, the front half of the wire R1 is clamped between the outer middle cone sleeve 2 and the connector body 1, and the rear half is folded inward and clamped between the cone nail 3 and the middle cone sleeve 2; or, a part of the wire R1 is folded outward, and the other part is folded inward, etc., which can realize the double clamping force effect described in the present invention.

[0051] Preferably, using Figure 1 The outer folding manner shown in FIG. 1 is shown in FIG. 1 , and the end of the wire R1 extends out of the side of the middle cone sleeve 2 close to the cone nail tip 31 ( Figure 1 The left side in the figure). It is conceivable that the end of the wire R1 can be clamped between the middle cone sleeve 2 and the connector body 1; and it is preferred that the end of the wire R1 extends from the front to the clamping position between the middle cone sleeve 2 and the connector body 1, which can ensure that the wire R1 has a sufficiently long clamped length, which helps to improve the positioning connection effect. In actual use, for the convenience of installation, after the wire R1 is folded outward, a structure such as a film or tape is wrapped around the outside of the middle cone sleeve 2 and the wire R1 for bundling, or after the installation is completed and before it is inserted into the bushing 5, a film or tape can be wrapped around the outside of the middle cone sleeve 2 and the wire R1 for bundling. Figure 1 The inlet of the cable R on the left side is injected with adhesive to fill the interior of the connector body 1 cavity.

[0052] The connector body 1 is on the side close to the cone nail head 32 ( Figure 1The right side in the figure) is connected with a terminal 4, and a connecting portion 41 is provided on the connector body 1 and / or the terminal 4. Figure 1 In the illustrated embodiment, the connection portion 41 is disposed on the end 4 at a side away from the cable R. The connection portion 41 has, for example, a connection hole for connecting other components such as a pin or a hook. The connection portion 41 is, for example, two ear plates disposed side by side and opposite to each other, such as Figure 1 The embodiment shown is obtained by machining a cylindrical shape, such as Figure 5 The connection portion 41 is shown as being processed from a spherical shape; or the connection portion 41 may also be selected to be only one ear plate, or a connection ring, etc., any structure that can achieve connection. It is conceivable that the connection portion 41 may also be provided on the connector body 1, for example, as an integrally formed part of the connector body 1.

[0053] At the position where the cable R is exposed from the cable connector ( Figure 1 The left end of the connector body 1 in the figure), the cable R is provided with a bushing 5 on the outer sleeve, and the bushing 5 is connected to the connector body 1. The bushing 5 is a cylindrical sleeve, for example, it is sealed with interference fit with the cable R and the connector body 1 or connected by bonding or the like. The bushing 5 has three functions: first, the bushing 5 can realize the positioning and protection of the access end of the cable R; second, the bushing 5 can realize the waterproof and dustproof sealing there; third, in actual use, the bushing 5 can be designed with a variety of specifications of different inner diameters, for example, the outer diameters of various bushings 5 ​​are matched with the connector body 1, and the inner diameters are matched with the outer diameters of cables R of various specifications, so that the connector body 1 of the same size can be applied to more than two different diameters of cables R by replacing bushings 5 ​​of different specifications. Therefore, the cable connector of this scheme has strong compatibility, high flexibility of use, and helps to reduce the design, production and use costs. In addition, according to needs, the cone nail 3 and the middle cone sleeve 2 can also be designed and produced in different specifications for adaptation.

[0054] More specifically, in the direction from the cone tip 31 of the cone pin 3 to the cone head 32, the outer side of the cone pin 3, the inner side and outer side of the middle cone sleeve 2, and the inner side of the connector body 1 all gradually increase in diameter. When the tension on the cone structures increases, the clamping force between the cone structures also increases; for example Figure 1 In the embodiment, the cable R is pulled to the left, and the middle cone sleeve 2 tends to move to the left. However, the inner diameter of the left side of the connector body 1 is smaller, so it will be pulled tighter and tighter, thereby preventing the cable R from moving and achieving a stable connection.

[0055] The end head 4 is nested inside or outside the connector body 1, and the end head 4 and the connector body 1 are preferably threadedly connected. Figure 1As shown, the terminal 4 is in the shape of a cap, with a cylindrical side wall, the inner side of the terminal 4 is provided with an internal thread, and the connector body 1 is provided with a matching external thread. The terminal 4 is screwed onto the outside of the connector body 1, thereby forming a detachable and fastened connection that can withstand a large axial tensile force. Figure 4 , Figure 5 In the embodiment shown, the end 4 is in the shape of a cylindrical plug, the outer side of the end 4 is provided with an external thread, the inner side of the connector body 1 is provided with a matching internal thread, and the end 4 is screwed into the connector body 1. The connection and bearing effects of these two optional solutions are basically the same, which can meet different usage habits or usage scenarios. For example, considering the angle of the cable connector during installation and work, choose a method suitable for operation, observation, and not easy to accumulate water or dirt; Figure 1 In the embodiment, the opening of the nested structure formed by the end 4 and the connector body 1 faces left, and when arranged, the opening is preferably facing downward or obliquely downward, that is, the cable R is arranged facing downward or obliquely downward; similarly, Figure 4 The opening of the nested structure formed by the middle terminal 4 and the connector body 1 faces right, which is preferred when the cable R is arranged upward or obliquely upward. In addition, it is conceivable that other connection methods such as bonding, screw / bolt connection, etc. can also be used or simultaneously used between the terminal 4 and the connector body 1.

[0056] Furthermore, an annular sealing ring 6 is provided between the terminal 4 and the connector body 1, and the sealing ring 6 is mainly used to close the gap between the terminal 4 and the connector body 1 and form a seal. Preferably, the sealing ring 6 is located at the edge of the opening of the nested structure formed by the terminal 4 and the connector body 1; the sealing ring 6 with such a setting not only provides a waterproof and dustproof sealing protection effect, but also provides a visual reminder of whether it has been installed in place, that is, after the installation is completed, the sealing ring 6 should be completely covered by the one located on the outside of the terminal 4 and the connector body 1, so that the installer and the maintenance personnel can intuitively and conveniently check the installation and connection status, avoid problems that are difficult to find due to substandard installation, further improve the fault tolerance rate, and ensure the reliability of the cable connection.

[0057] More specifically, if Figure 1 , Figure 4 As shown, the shapes of the connector body 1 and the terminal 4 are adapted to the installation of the sealing ring 6, and a sealing ring groove is provided on the outer periphery of the inner side of the terminal 4 and the connector body 1, and the sealing ring 6 is located in the sealing ring groove to ensure that the sealing ring 6 does not move; the connector body 1 and the terminal 4 are on the side away from the sealing ring 6, and the matching inner and outer diameters are consistent and tightly connected, and at the sealing ring 6, there is a narrow gap between the connector body 1 and the terminal 4 to accommodate (interference fit) the sealing ring 6.

[0058] Preferably, the end 4 directly or indirectly contacts the cone nail 3 and / or the middle cone sleeve 2, thereby providing a tightening force during installation to ensure that the wire R1 is clamped at the inner and outer clamping positions. It is conceivable that, for example, in a solution where the cone nail 3, the middle cone sleeve 2, the connector body 1 and / or the wire R1 are directly bonded and fixed, the end 4 may not be required to contact and tighten.

[0059] like Figure 1 In the illustrated embodiment, the ends of the cone nail 3 and the middle cone sleeve 2 are substantially flat, and a gasket 7 is provided between the end head 4 and the ends of the cone nail 3 and the middle cone sleeve 2. The gasket 7 is, for example, a round disc made of stainless steel or plastic. The provision of the gasket 7 helps to reduce the friction between the end head 4 and the cone nail 3 and / or the middle cone sleeve 2, thereby facilitating the installation of the end head 4 and also helping to ensure the tightening effect of the end head 4. The cone nail 3 and the end head 4 are in contact or connected via a butting connector 8, and the gasket 7 has a through hole and is sleeved outside the butting connector 8. The abutting connector 8 is, for example, a stud, a bolt, or a non-threaded top column, a top block, etc., which is threadedly connected to the mounting hole opened in the middle of the end 4 or directly inserted into the mounting hole. The other end of the abutting connector 8 is in conflict with or connected to the cone nail 3. Therefore, the cone nail 3 and the end 4 are in conflict through the abutting connector 8, and the middle cone sleeve 2 and the end 4 are in conflict through the gasket 7, and the wire R1 is clamped therebetween, which helps to improve the clamping effect of the wire R1.

[0060] like Figure 3 In the embodiment shown, Figure 1 Differently, there is no abutting connector 8, and the gasket 7 does not have a through hole, but is a solid gasket. The end 4 indirectly contacts the cone pin 3 and the middle cone sleeve 2 through the gasket 7, and the cone pin 3 and the middle cone sleeve 2 are pressed tightly in the connector body 1. This structure has fewer components and is more streamlined.

[0061] like Figure 4 In the embodiment shown, Figure 1 Differently, the terminal 4 is a "plug-type" structure in the connector body 1, and the abutting connector 8 is a protrusion integrally formed on the terminal 4, so as to pass through the through hole on the gasket 7 and directly abut against the cone nail 3. It is conceivable that this "plug-type" structure may not be provided with the abutting connector 8, or a separate abutting connector 8 may be provided, etc.

[0062] like Figure 6 , Figure 7 In the embodiment shown, Figure 1Differently, the abutting connector 8 is a bolt in the same direction as the tip 31 of the cone nail. After the wire R1 is installed, the bolt passes through the gasket 7 and is tightened to be installed in the installation threaded hole opened in the middle of the cone nail 3, so that the middle cone sleeve 2, the cone nail 3, and the gasket 7 form a fixed installation and connection as a whole, realizing the locking of the structure as a whole, ensuring that the wire R1 is clamped by the middle cone sleeve 2 and the cone nail 3. Furthermore, a positioning hole for accommodating the bolt head of the abutting connector 8 is opened in the middle position of the end 4, so that the auxiliary positioning of the cone nail 3 can be achieved while tightening, ensuring that the axes of the cone nail 3, the end 4 and the connector body 1 are basically coincident, which helps to improve the uniformity of the force on the wire R1.

[0063] In addition, Figure 6 In the embodiment shown, Figure 1 Differently, in the direction from the cone nail tip 31 of the cone nail 3 to the cone nail head 32, the outer diameter of the portion other than the cone nail tip 31 of the cone nail 3 gradually decreases, the inner diameter of the intermediate cone sleeve 2 gradually decreases, the outer diameter of the intermediate cone sleeve 2 gradually increases, and the inner diameter of the connector body 1 gradually increases. The staggered design of the inclined direction of the conical slope has the effect of structural interlocking, which can achieve stronger tension and stronger clamping force, and the intermediate cone sleeve 2 plays a role similar to a wedge between the connector body 1 and the cone nail 3, which can ensure a very tight clamping fit during installation. Preferably, as described above, bolts are used to press and fix the intermediate cone sleeve 2 and the cone nail 3 with staggered interlocking design during installation.

[0064] Preferably, for example, in the case of a threaded connection between the end 4 and the connector body 1, as Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, a tool hole 42 is circumferentially opened on the outer side of the end 4. Figure 5 As shown, a flat surface is provided on the cylindrical outer side of the connector body 1, so as to facilitate the use of tools to twist, install or remove.

[0065] It should be noted that the above description is based on only some specific embodiments, and the present invention is not limited thereto. According to actual conditions, the features in the above specific embodiments can be combined. For example, Figure 7 For the general Figure 6 The structure is changed to an embodiment of a "plug-type" terminal 4. In addition, the cable connector of the present invention preferably adopts a structure in which the connector body 1, the middle cone sleeve 2, and the cone nail 3 are all circular in cross section, and a pyramid structure can also be adopted as needed (except for parts such as threaded connections that must be circular to obtain better technical effects).

[0066] In some specific embodiments, the connector body 1 and the end 4 can be manufactured using a variety of processes and materials, such as hot-dip galvanized carbon steel, stainless steel, aluminum alloy, copper alloy, plastic, composite material, etc. For cable connectors with a load of 3 to 10.5 tons, for example Figure 1 The total length of the structure shown (the length from left to right, excluding the cable R portion outside the left end) is about 130mm to 175mm, and the structure is compact and easy to use in various fields; Figure 1 The angle of the generatrix of the matched conical surfaces of the middle connector body 1, the middle conical sleeve 2 and the conical pin 3 relative to the horizontal direction is about 1.5 degrees.

[0067] by Figure 3 Taking the illustrated embodiment as an example, a process for installing and using the cable connector of the present invention is as follows. First, the cable R (with a bushing 5 on the outside) is inserted from left to right into the connector body 1 (with a sealing ring 6 on the outside) and the middle cone sleeve 2, the sheath at the end of the cable R is peeled off, and the internal wire R1 is dispersed, and then the cone nail 3 is inserted from right to left into the middle cone sleeve 2 and placed in the middle of the wire R1, so that the wire R1 is basically evenly distributed outside the cone nail 3, the cone nail 3 is initially compacted in the middle cone sleeve 2, and then all the wires R1 are folded outwards and basically evenly distributed outside the middle cone sleeve 2; at this time, if the end of the wire R1 is not enough to extend out of the left end of the middle cone sleeve 2, the structure can be disassembled again, the cable R is moved to the right, and the length of the wire R1 is increased and reinstalled; a plastic film is wrapped around the middle cone sleeve 2 and the wire R1 to pre-fix the wire R1 snugly on the outside of the middle cone sleeve 2; then the cable R , the middle cone sleeve 2 and the cone nail 3 are moved to the left as a whole, and the middle cone sleeve 2 and the cone nail 3 are placed in the connector body 1; the cover-shaped terminal 4 (with a gasket 7 inside) is screwed in at the right end. When the terminal 4 is screwed into the connector body 1 to a position close to the tightening position, the gasket 7 inside the terminal 4 first presses against the right ends of the cone nail 3 and the middle cone sleeve 2, and then pushes the cone nail 3 and the middle cone sleeve 2 that have clamped the wire R1 to a completely tightened position, and the cylindrical edge of the left end of the terminal 4 moves to a position that completely covers the sealing ring 6; when the installation is completed, the sealing ring 6 should be completely hidden between the terminal 4 and the connector body 1 (the length dimensions of each component are designed in this way), so that it can be judged whether it is installed in place; finally, the bushing 5 is inserted into the connector body 1 to form a waterproof seal between the cable R and the connector body 1. During the installation and removal process, a dedicated disassembly tool can be used: for example, when screwing the installation terminal 4, a tool shaped like a wrench is used, and a positioning column protruding inward is provided at the positioning end of the tool, and the positioning column is inserted into the tool hole 42 for twisting; for another example, during disassembly, after removing the bushings 5 ​​and the terminal 4 at both ends of the connector body 1, the middle cone sleeve 2 may still be tightly attached to the connector body 1 and cannot be separated. At this time, a columnar disassembly tool 9 (for example, a screwdriver) can be inserted from the gap between the connector body 1 and the cable R where the bushing 5 was originally provided. Figure 5 As shown), push the middle cone sleeve 2 outwards.

[0068] In summary, the cable connector of the present invention is provided with an intermediate cone sleeve 2, so that the wire R1 forms two relatively long distances of close clamping contact between the cone nail 3 and the intermediate cone sleeve 2 and between the intermediate cone sleeve 2 and the connector body 1, with double clamping force, realizing a more stable and reliable connection, effectively avoiding the risk of accidents caused by cable disengagement, and improving the carrying capacity and safety of the cable system. At the same time, there is no need to use adhesives. For example, when the installation is not in place or the installation operation is wrong, it can be installed and removed repeatedly, which greatly improves the fault tolerance rate, is more convenient for use in actual projects, and avoids the problem that it is difficult or impossible to modify the one-time installation method such as bonding when the installation is wrong, resulting in waste of manpower and products or potential safety hazards. In addition, the present invention preferably adopts a specific sealing ring 6 position setting, which provides a waterproof and dustproof sealing protection effect on the one hand, and can also serve as an identification line installed in place on the other hand, which is convenient for intuitively and conveniently checking the installation connection status, avoiding problems that are difficult to find due to poor installation, and further improving the fault tolerance rate and ensuring the reliability of the cable R connection.

Claims

1. A cable connector, characterized in that: The invention comprises a connector body (1) in the shape of a hollow sleeve, wherein an intermediate cone sleeve (2) in the shape of a cone sleeve is arranged in the connector body (1), wherein a cone nail (3) is arranged in the intermediate cone sleeve (2), wherein one end of the cone nail (3) is a cone nail tip (31), and the other end of the cone nail (3) is a cone nail head (32); a cable (R) is inserted into the connector body (1) from the side facing the cone nail tip (31); wires (R1) used to form the cable (R) are dispersed at the cone nail tip (31), and each of the wires (R1) is clamped between the cone nail (3) and the intermediate cone sleeve (2) and between the intermediate cone sleeve (2) and the connector body (1); the connector body (1) is connected to an end (4) on the side close to the cone nail head (32); and a connecting portion (41) is provided on the connector body (1) and / or the end (4).

2. The cable connector according to claim 1, characterized in that: The front half of the dispersed wire (R1) away from the end is clamped between the cone nail (3) and the middle cone sleeve (2), and the rear half of the dispersed wire (R1) close to the end extends outward from a side close to the cone nail head (32), folds outward, and is clamped between the middle cone sleeve (2) and the connector body (1); The end of the wire (R1) is clamped between the intermediate cone sleeve (2) and the connector body (1) or extends out of a side of the intermediate cone sleeve (2) close to the cone nail tip (31).

3. The cable connector according to claim 1, characterized in that: At the position where the cable (R) is exposed from the cable connector, a bushing (5) is provided on the outer cover of the cable (R), and the bushing (5) is connected to the connector body (1).

4. The cable connector according to claim 1, characterized in that: In the direction from the cone nail tip (31) to the cone nail head (32), the outer side surface of the cone nail (3), the inner side surface and outer side surface of the intermediate cone sleeve (2), and the inner side surface of the connector body (1) all have gradually increasing diameters; or, In the direction from the cone nail tip (31) of the cone nail (3) to the cone nail head (32), the outer surface diameter of the portion other than the cone nail tip (31) of the cone nail (3) gradually decreases, the inner surface diameter of the intermediate cone sleeve (2) gradually decreases, the outer surface diameter of the intermediate cone sleeve (2) gradually increases, and the inner surface diameter of the connector body (1) gradually increases.

5. The cable connector according to any one of claims 1 to 4, characterized in that: The end head (4) is nested and arranged inside or outside the connector body (1).

6. The cable connector according to claim 5, characterized in that: A sealing ring (6) is provided between the end head (4) and the connector body (1); the sealing ring (6) is located at the edge of the opening of the nested structure formed by the end head (4) and the connector body (1).

7. The cable connector according to claim 5, characterized in that: The end head (4) and the connector body (1) are threadedly connected.

8. The cable connector according to claim 5, characterized in that: The end head (4) is in conflict with the cone nail (3) and / or the intermediate cone sleeve (2).

9. The cable connector according to claim 8, characterized in that: A gasket (7) is provided between the end head (4) and the cone nail (3) and / or the intermediate cone sleeve (2).

10. The cable connector according to claim 9, characterized in that The cone nail (3) and the end head (4) are in contact with or connected to each other via a butting connection piece (8); the gasket (7) has a through hole and is sleeved outside the butting connection piece (8).

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