Cable connector

Abstract

The utility model discloses a cable connector, which comprises an insulating sleeve I, a female contact pin, an insulating sleeve III, an O-shaped ring I, a base, an end cover, a connecting nut, an insulating sleeve II, a male contact pin, an insulating sleeve IV, an O-shaped ring II, a connecting sleeve, a rubber ring, a gasket and a compression nut which are sequentially and coaxially distributed from left to right, the female contact pins are wrapped by the first insulating sleeve and the third insulating sleeve, the tail ends of the female contact pins are connected with an outgoing cable in a pressing mode and connected with the male contact pins in a matched mode, the tail ends of the male contact pins are connected with other cables needing to be communicated in a pressing mode, and the second insulating sleeve and the fourth insulating sleeve wrap the male contact pins and are installed between the end cover and the connecting sleeve. The cable connector is compact in structure, ingenious in design, firm in connection, reliable, durable and high in safety, not only can effectively prevent cable connection errors, but also can prevent electric sparks caused by the fact that the cable is separated and short-circuited.

Description

Technical Field

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

[0002] In power systems, cable connectors, as the connection device between control cables and electrical switchgear, are key products for ensuring the correct and reliable transmission of electrical signals. They consist of two parts: a free-end electrical connector and a fixed electrical connector. The plugging and unplugging of these two parts connects and disconnects the circuit. Existing cable connectors in the prior art include a main connector and a secondary connector for connecting the internal cables. They also include a clamping sleeve, which extends along the wiring direction of the main and secondary connectors and is used to connect and secure the main and secondary connectors. The main and secondary connectors are plugged into each other and secured by the clamping sleeve. However, these cable connectors still have several drawbacks. In environments like mines, where flammable gases such as methane are present, the connector's cable pairing design and the spacing between conductive components are crucial. These features prevent the cable from accidentally coming out, thereby avoiding sparks, which has a significant impact on ensuring the reliability and safety of the equipment. Therefore, there is an urgent need to develop a cable connector that addresses these technical issues.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a cable connector with a compact structure, ingenious design, firm connection, reliability and durability, and high safety. It can not only effectively prevent cable connection errors, but also prevent the cable from falling out and short-circuiting to generate electric sparks, effectively avoiding the problems of insufficient structural connection reliability and insufficient safety in the prior art. The utility model has broad application prospects and is conducive to popularization and application.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a cable connector, comprising an insulating sleeve 1, a female pin, an insulating sleeve 3, an O-ring 1, a base, an end cover, a connecting nut, an insulating sleeve 2, a male pin, an insulating sleeve 4, an O-ring 2, a connecting sleeve, a rubber ring, a gasket and a compression nut, which are coaxially distributed from left to right. A plurality of female pins are wrapped by the insulating sleeve 1 and the insulating sleeve 3. The tail end of the female pin is crimped with the lead-out cable and connected with the male pin in cooperation with each other. The tail end of the male pin is crimped with other cables that need to be connected. The base is fastened to the housing of the electrical equipment using the cable connector using screws. Insulating sleeves 1 and 3, which enclose the female pins, are pressed against the housing of the electrical equipment. The end cap and the connecting sleeve are threaded together. Insulating sleeves 2 and 4, which enclose multiple male pins, are installed between the end cap and the connecting sleeve. The connecting nut is coaxially inserted into the outside of the connecting sleeve. The second O-ring is coaxially inserted between the end cap and the connecting nut. The rubber ring and gasket are installed between the compression nut and the connecting sleeve. The compression nut and the connecting sleeve are threaded together. During installation, the rubber ring is placed over the cable to be connected. Using the connecting sleeve and gasket, the rubber ring is deformed by tightening the compression nut, thereby firmly holding the cable.

[0006] Preferably, the outer sides of the insulating sleeve one, insulating sleeve two, insulating sleeve three and insulating sleeve four are all provided with a convex edge, and the inner sides of the end cover and the base are provided with a groove that cooperates with the convex edge, so that the insulating sleeve one, insulating sleeve two, insulating sleeve three, insulating sleeve four and the end cover and the base cannot rotate.

[0007] Preferably, a pin is provided on the end cover and a stop groove is provided on the insulating sleeve. The pin cooperates with the stop groove so that the component equipped with the male pin can only slide axially to disconnect and cannot rotate when the cable connector is disconnected and reconnected.

[0008] Preferably, the shortest distance between the female pin and the male pin in the air is ≥3 mm.

[0009] Preferably, the number of the female pins and the number of the male pins are both four.

[0010] Preferably, the base is a stainless steel base, the connecting sleeve is a stainless steel connecting sleeve, the connecting nut is a stainless steel connecting nut, and the clamping nut is a stainless steel clamping nut.

[0011] The utility model provides a cable connector, which has the following beneficial effects.

[0012] 1. This utility model has a compact structure, ingenious design, firm connection, reliability, durability and high safety. It can not only effectively prevent cable connection errors, but also prevent cables from falling out and short-circuiting to generate sparks, effectively avoiding the problems of insufficient structural connection reliability and safety in the prior art.

[0013] 2. The insulating sleeve of this utility model has a ridge on the outside, and grooves on the inside of the end cap and base that cooperate with the ridges, preventing the insulating sleeve, end cap, and base from rotating. A pin is provided on the end cap, and a groove is provided on the insulating sleeve. The pin and groove cooperate to ensure that the assembly with the male pin can only slide axially when disconnecting and reconnecting the cable connector, preventing rotation, thereby effectively preventing incorrect cable connections.

[0014] 3. The shortest distance between the female and male pins in the air of this utility model is ≥3mm, which can effectively improve safety in coal mine environments.

[0015] 4. This utility model puts a rubber ring on the cable to be connected, uses a connecting sleeve and a gasket, and deforms the rubber ring by tightening the compression nut, thereby firmly holding the cable. This can largely prevent the cable from falling out and short-circuiting and generating sparks.

[0016] 5. The base, connecting sleeve, connecting nut and compression nut of this utility model are all made of stainless steel, which is reliable, durable and highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a cable connector provided by the utility model;

[0018] Figure 2 A cross-sectional view of a cable connector provided by the present invention;

[0019] Figure 3 The present invention provides an exploded view of a cable connector.

[0020] In the picture:

[0021] 1. Base 2. Connecting sleeve 3. End cap 4. Gasket 5. Connecting nut 6. Pressing nut 7. Insulating sleeve 1 8. Insulating sleeve 2 9. Insulating sleeve 3 10. Female pin 11. Male pin 12. Rubber ring 13. O-ring 1 14. Pin 15. Electrical equipment housing 16. Insulating sleeve 4 17. O-ring 2 DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to specific embodiments and accompanying drawings to facilitate understanding of the present invention.

[0023] like Figure 1-Figure 3 The following are the schematic diagram, cross-sectional view and exploded view of the structure of a cable connector provided by the present invention. The cable connector includes an insulating sleeve 1 7, a female pin 10, an insulating sleeve 3 9, an O-ring 13, a base 1, an end cover 3, a connecting nut 5, an insulating sleeve 2 8, a male pin 11, an insulating sleeve 4 16, an O-ring 2 17, a connecting sleeve 2, a rubber ring 12, a gasket 4 and a pressing nut 6, which are coaxially distributed from left to right. A plurality of female pins 10 are wrapped by the insulating sleeve 1 7 and the insulating sleeve 3 9. The tail end of the female pin 10 is crimped with the lead-out cable and connected with the male pin 11. The tail end of the male pin 11 is crimped with other cables that need to be connected. The base 1 is used with the cable The electrical device housing 15 of the connector is fastened with screws. Insulating sleeves 1 (7) and 3 (9) covering the female pins 10 are pressed against the electrical device housing 15. The end cap 3 is threadedly connected to the connecting sleeve 2. Insulating sleeves 2 (8) and 4 (16) cover the multiple male pins 11 and are installed between the end cap 3 and the connecting sleeve 2. The connecting nut 5 is coaxially inserted into the outside of the connecting sleeve 2. The O-ring 2 (17) is coaxially inserted between the end cap 3 and the connecting nut 5. The rubber ring 12 and gasket 4 are installed between the compression nut 6 and the connecting sleeve 2. The compression nut 6 and the connecting sleeve 2 are threadedly connected. During installation, the rubber ring 12 is placed on the cable to be connected. Using the connecting sleeve 2 and gasket 4, the rubber ring 12 is deformed by tightening the compression nut 6, thereby firmly holding the cable, which can largely prevent the cable from slipping out and short-circuiting and generating sparks. The outer sides of the insulating sleeve 1 7, insulating sleeve 2 8, insulating sleeve 3 9 and insulating sleeve 4 16 are all provided with convex edges, and the inner sides of the end cover 3 and the base 1 are provided with grooves that cooperate with the convex edges, so that the insulating sleeve 1 7, insulating sleeve 2 8, insulating sleeve 3 9, insulating sleeve 4 16 cannot rotate between the end cover 3 and the base 1. The end cover 3 is provided with a pin 14, and the insulating sleeve 3 9 is provided with a rotation-stop groove. The pin 14 cooperates with the rotation-stop groove so that the component equipped with the male pin 11 can only slide axially to disconnect when the cable connector is disconnected and reconnected, and cannot rotate, thereby effectively preventing cable connection errors. The shortest distance between the female pin 10 and the male pin 11 in the air is ≥3mm, which can effectively improve safety in the coal mine environment. The number of the female pin 10 and the male pin 11 are both four. The base 1 is a stainless steel base, the connecting sleeve 2 is a stainless steel connecting sleeve, the connecting nut 5 is a stainless steel connecting nut 5, the clamping nut 6 is a stainless steel clamping nut 6, and the outer shell is made of stainless steel, which is reliable, durable and highly safe.

[0024] The working principle of this utility model is:

[0025] Connect the female connector pin 10 to one end of the cable. Secure the base 1 to the electrical equipment housing 15. Connect the male connector pin 11 to the other end of the cable and screw into the compression nut 6. To connect the cables, align the pin 14 with the stop groove of the insulating sleeve 9, insert the male connector pin 11 into the female connector pin 10, and tighten with the coupling nut 5 to connect the multiple cables. To disconnect, loosen the coupling nut 5 and remove the cable connector male connector pin 11 assembly to disconnect the multiple cables.

[0026] The utility model has a compact structure, ingenious design, firm connection, reliability and durability, and high safety. It can not only effectively prevent cable connection errors, but also prevent the cable from falling out and short-circuiting to generate electric sparks, effectively avoiding the problems of insufficient structural connection reliability and insufficient safety in the prior art.

[0027] This document uses specific examples to illustrate the concept of the utility model in detail. The above examples are only intended to help understand the core concept of the utility model. It should be noted that any obvious modifications, equivalent substitutions, or other improvements made by a person skilled in the art without departing from the concept of the utility model should be included in the scope of protection of the utility model.

Claims

1. A cable connector, characterized in that: It includes an insulating sleeve 1, a female pin, an insulating sleeve 3, an O-ring 1, a base, an end cover, a connecting nut, an insulating sleeve 2, a male pin, an insulating sleeve 4, an O-ring 2, a connecting sleeve, a rubber ring, a gasket and a compression nut, which are coaxially distributed from left to right. Multiple female pins are wrapped by the insulating sleeve 1 and the insulating sleeve 3. The tail end of the female pin is crimped with the lead-out cable and connected with the male pin. The tail end of the male pin is crimped with other cables that need to be connected. The base is connected to the cable connector. The electrical equipment casing is fastened with screws, and the insulating sleeves 1 and 3 that wrap the female pins are pressed against the electrical equipment casing. The end cover and the connecting sleeve are connected by threads. The insulating sleeves 2 and 4 that wrap multiple male pins are installed between the end cover and the connecting sleeve. The connecting nut is coaxially inserted into the outside of the connecting sleeve, and the O-ring 2 is coaxially inserted between the end cover and the connecting nut. The rubber ring and the gasket are installed between the clamping nut and the connecting sleeve. The clamping nut and the connecting sleeve are connected by threads.

2. The cable connector according to claim 1, wherein: The outer sides of the insulating sleeves 1, 2, 3 and 4 are provided with convex edges, and the inner sides of the end covers and the base are provided with grooves that cooperate with the convex edges, so that the insulating sleeves 1, 2, 3 and 4 cannot rotate between the end covers and the base.

3. The cable connector according to claim 2, wherein: The end cover is provided with a pin, and the insulating sleeve is provided with a stop groove. The pin cooperates with the stop groove so that the component equipped with the male pin can only slide axially to disconnect and cannot rotate when the cable connector is disconnected and reconnected.

4. The cable connector according to claim 3, wherein: The shortest distance between the female pin and the male pin in the air is ≥3 mm.

5. The cable connector according to claim 4, characterized in that: The number of the female pins and the number of the male pins are both four.

6. The cable connector according to claim 5, characterized in that: The base is a stainless steel base, the connecting sleeve is a stainless steel connecting sleeve, the connecting nut is a stainless steel connecting nut, and the clamping nut is a stainless steel clamping nut.

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