Airtight single-core armored cable plug

Abstract

The utility model relates to the technical field of single-core cable plugs, and discloses an airtight single-core armored cable plug which comprises a main shell and a butt joint shell, the butt joint shell is fixedly arranged on one side of the main shell, an annular groove is formed in the outer side of one end of the butt joint shell, a movable ring is slidably connected with an inner cavity of the annular groove, and the movable ring is fixedly connected with the butt joint shell. A plurality of sets of springs are fixedly connected between the side wall of the movable ring and an inner cavity of the annular groove, a sealing ring is fixedly connected to one side of the movable ring, four sets of heat conduction rods are embedded in the inner side wall of the butt joint shell, cooling fins are fixedly connected between the butt joint shell and the main shell, and the cooling fins are fixedly connected with the heat conduction rods. A single-core cable is arranged in an inner cavity of the main shell, and one end of the single-core cable penetrates through the inner cavity of the main shell and extends to an inner cavity of the butt joint shell. According to the scheme, the guide pins can be prevented from being corroded and oxidized, the service life of the single-core armored cable plug is prolonged, heat dissipation is facilitated, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of single-core cable plugs, and specifically relates to an airtight single-core armored cable plug. Background Art

[0002] A single-core cable refers to a cable with only one conductor path within an insulating layer. This type of cable is designed for various scenarios, including but not limited to high-voltage power transmission, telephone lines, television signal transmission, etc. The main characteristics of single-core cables include their simple structure, convenient use, and the ability to minimize electromagnetic interference and signal loss. Armored cables consist of different material conductors enclosed in a metal sleeve with insulating material, and are processed into a bendable and solid combination, enabling better performance of single-core armored cable plugs.

[0003] The invention patent with the application number 201510016095.0 discloses an airtight single-core armored cable plug. The airtight single-core armored cable plug includes a lower kovar sleeve, an insulating alumina ceramic tube, a pin, a transition sleeve, and an armored cable. The lower kovar sleeve, insulating alumina ceramic tube, pin, and transition sleeve all have hollow inner cavities. The inner cavity of the lower kovar sleeve, the inner cavity of the insulating alumina ceramic tube sealed in the lower sleeve, the inner cavity of the pin sealed in the insulating alumina ceramic tube, and the inner cavity of the transition sleeve sealed in the pin form a passage for the armored cable to pass through. One end of the armored cable entering the lower kovar sleeve and the end of the armored cable coming out of the transition sleeve are high-temperature-resistant metal sealed structures. The beneficial effects that can be achieved by using the utility model are as follows: the overall airtightness ≤ 1.0X10 Pa·m³ / S; the insulation resistance at room temperature > 1000 MΩ (5V DC); the temperature shock performance (room temperature to 300 °C, cycling 10 times): withstand voltage > 500V (DC).

[0004] According to the above patent, there is an airtight single-core armored cable plug. When in use, the airtightness of the single-core armored cable plug is weak, which easily allows external gas to enter the cable plug. In severe cases, it will cause the guide pin to corrode and oxidize, reducing the service life of the single-core armored cable plug. Moreover, the armored cable plug is not convenient for heat dissipation, easily causing the internal temperature of the armored cable plug to be too high, affecting its use. Therefore, we propose an airtight single-core armored cable plug. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide an airtight single-core armored cable plug to solve the problems raised in the above background art.

[0006] In order to achieve the above invention purpose, the present utility model provides the following technical solutions:

[0007] The present application is specifically as follows: an airtight single-core armored cable plug, comprising: a main housing and a docking housing, the docking housing is fixedly arranged on one side of the main housing, an annular groove is opened on the outer side of one end of the docking housing, a movable ring is slidably connected in the inner cavity of the annular groove, a plurality of groups of springs are fixedly connected between the side wall of the movable ring and the inner cavity of the annular groove, a sealing ring is fixedly connected to one side of the movable ring, four heat conducting rods are inlaid on the inner side wall of the docking housing, heat dissipation fins are fixedly connected between the docking housing and the main housing, and the heat dissipation fins are fixedly connected to the heat conducting rods.

[0008] As a preferred technical solution of the present application, a single-core cable is arranged in the inner cavity of the main housing, and one end of the single-core cable penetrates through the inner cavity of the main housing and extends into the inner cavity of the docking housing.

[0009] As a preferred technical solution of the present application, a guide pin head is arranged at the connection end of the single-core cable.

[0010] As a preferred technical solution of the present application, a locking nut for facilitating the fixation of the single-core cable is arranged on the main housing.

[0011] As a preferred technical solution of the present application, a support ring is fixedly connected to the outer side wall of the docking housing, and connection strips are arranged on the outer side wall of the support ring.

[0012] As a preferred technical solution of the present application, a sealing block matching the port of the docking housing is arranged at the connection end of the connection strip.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] In the solution of the present application:

[0015] 1. By opening an annular groove on the docking housing, the spring and the movable ring are supported by the annular groove, and the sealing ring is supported by the movable ring. When the single-core armored cable plug is in use, it will reversely push the sealing ring and the movable ring to slide in the annular groove, and cause the spring to deform, and apply an elastic force to the movable ring and the sealing ring. The sealing ring seals one end of the docking housing. By arranging the support ring to support the connection strip and the sealing block, when the single-core armored cable plug is not in use, one end of the docking housing is sealed to prevent the guide pin from being corroded and oxidized, and the service life of the single-core armored cable plug is prolonged.

[0016] 2. By arranging heat conducting rods on the inner side of the docking housing, the heat conducting rods are connected to the heat dissipation fins, and the heat dissipation fins are arranged between the main housing and the docking housing, so that when the single-core armored cable plug is in use, the heat generated inside can be transferred to the heat dissipation fins through the heat conducting rods, and the heat dissipation fins dissipate the heat, thereby facilitating heat dissipation and convenient for use. Description of the Drawings

[0017] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the description. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0018] In the accompanying drawings:

[0019] Figure 1 is a perspective view of the airtight single-core armored cable plug provided by the present application;

[0020] Figure 2 is a schematic cross-sectional view of the airtight single-core armored cable plug provided by the present application;

[0021] Figure 3 is a structural diagram of the docking housing of the airtight single-core armored cable plug provided by the present application;

[0022] Figure 4 is a partial exploded view of the airtight single-core armored cable plug provided by the present application.

[0023] In the figure: 100, main housing; 110, single-core cable; 120, guide pin head; 130, locking nut; 200, docking housing; 210, support ring; 211, connecting strip; 212, sealing block; 220, annular groove; 221, spring; 222, movable ring; 223, sealing ring; 230, heat conducting rod; 240, heat sink. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4, an airtight single-core armored cable plug, comprising: a main housing 100 and a docking housing 200. The docking housing 200 is fixedly arranged on one side of the main housing 100. An annular groove 220 is formed on the outer side of one end of the docking housing 200. The movable ring 222 is supported by the annular groove 220. The movable ring 222 is slidably connected to the inner cavity of the annular groove 220. The movable ring 222 is used to support the sealing ring 223. A plurality of groups of springs 221 are fixedly connected between the side wall of the movable ring 222 and the inner cavity of the annular groove 220. The elastic force is applied to the movable ring 222 and the sealing ring 223 through the springs 221, so that the sealing ring 223 can be in a tightly pressed state. A sealing ring 223 is fixedly connected to one side of the movable ring 222. The sealing ring 223 is used to improve the sealing performance. Four heat-conducting rods 230 are embedded on the inner side wall of the docking housing 200. The heat-conducting rods 230 are used for heat conduction. A heat sink 240 is fixedly connected between the docking housing 200 and the main housing 100. The heat sink 240 is used to dissipate the heat conducted by the heat-conducting rods 230. The heat sink 240 is fixedly connected to the heat-conducting rods 230.

[0026] Please refer to Figures 1-4 , a single-core cable 110 is arranged in the inner cavity of the main housing 100. One end of the single-core cable 110 penetrates through the inner cavity of the main housing 100 and extends to the inner cavity of the docking housing 200. The guide pin head 120 is supported by the single-core cable 110.

[0027] Please refer to Figures 1-4 , a guide pin head 120 is arranged at the connection end of the single-core cable 110. The connection of the cable is realized through the guide pin head 120.

[0028] Please refer to Figures 1-4 , a locking nut 130 for facilitating the fixing of the single-core cable 110 is arranged on the main housing 100. The single-core cable 110 is fixed through the locking nut 130.

[0029] Please refer to Figure 1 and Figure 2 , a support ring 210 is fixedly connected to the outer side wall of the docking housing 200. A connection strip 211 is arranged on the outer side wall of the support ring 210. The support ring 210 supports the sealing block 212 through the connection strip 211.

[0030] Please refer to Figure 1 and Figure 2 A sealing block 212 matching the port of the docking housing 200 is arranged at the connection end of the connection strip 211. The port of the docking housing 200 is sealed conveniently through the sealing block 212.

[0031] Specifically, when the present device is in use, first, in the case where the single-core armored cable plug is not in use, the port of the docking housing 200 is sealed by the sealing block 212, and the sealing block 212 is pulled by the connecting bar 211 to remove the sealing block 212 from the port of the docking housing 200. Then, the cable plug is inserted into the socket. At this time, since the sealing ring 223 contacts the socket, the movable ring 222 is driven to slide in the annular groove 220 in the reverse direction, and the spring 221 is deformed. The spring 221 exerts an elastic force on the movable ring 222 and the sealing ring 223, and the sealing ring 223 abuts against the socket. At this time, the elastic force of the spring 221 cannot drive the cable plug to separate from the socket. During the use process, the heat in the docking housing 200 is conducted by the heat conduction rod 230 and transferred to the heat sink 240, and the heat sink 240 conducts heat dissipation treatment and then checks the use.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Airtight single-core armored cable plug, characterized in that: include: A main shell (100) and a docking shell (200), wherein the docking shell (200) is fixedly arranged on one side of the main shell (100), an annular groove (220) is provided on the outer side of one end of the docking shell (200), a movable ring (222) is slidably connected to the inner cavity of the annular groove (220), a plurality of groups of springs (221) are fixedly connected between the side wall of the movable ring (222) and the inner cavity of the annular groove (220), a sealing ring (223) is fixedly connected to one side of the movable ring (222), four groups of heat-conducting rods (230) are inlaid on the inner side wall of the docking shell (200), a heat sink (240) is fixedly connected between the docking shell (200) and the main shell (100), and the heat sink (240) is fixedly connected to the heat-conducting rod (230).

2. The airtight single-core armored cable plug according to claim 1, characterized in that: The inner cavity of the main housing (100) is provided with a single-core cable (110), and one end of the single-core cable (110) passes through the inner cavity of the main housing (100) and extends to the inner cavity of the docking shell (200).

3. The airtight single-core armored cable plug according to claim 2, characterized in that: The connection end of the single-core cable (110) is provided with a guide pin head (120).

4. The airtight single-core armored cable plug according to claim 1, characterized in that: The main housing (100) is provided with a locking nut (130) for fixing the single-core cable (110).

5. The airtight single-core armored cable plug according to claim 1, characterized in that: The outer side wall of the docking shell (200) is fixedly connected with a support ring (210), and the outer side wall of the support ring (210) is provided with a connecting strip (211).

6. The airtight single-core armored cable plug according to claim 5, characterized in that: The connection end of the connection strip (211) is provided with a sealing block (212) matching the port of the docking housing (200).

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