阅读说明：本技术 一种散热防松脱线缆接头 (Heat dissipation locking cable joint that takes off ) 是由 王晓卜 于 2020-05-08 设计创作，主要内容包括：本发明提供了一种散热防松脱线缆接头,属于线缆接头技术领域,用于解决现有线缆接头连接处强度不够、易松脱,且容易发热的技术问题。包括散热接头和插入接头,散热接头上设置有公头、微型隔膜泵、散热保护罩和微型风扇,公头的外侧固定有散热片,散热接头和散热保护罩之间设置有毛细散热管道,插入接头上设置有母头、螺纹环、压紧套、弹簧板和弹簧,散热接头和插入接头内都设置有锥形套,公头和母头上都固定有线缆和固定圆台,固定圆台上都设置有导向锁紧套；本发明通过散热片和循环流动的冷却液能快速散热,防止严重发热,母头卡合在公头内,弹簧板与压紧套紧密抵触,定位凸台卡合在导向定位槽的端部,连接稳固,防止松脱,提高连接强度。(The invention provides a heat dissipation anti-loosening cable joint, belongs to the technical field of cable joints, and is used for solving the technical problems that the joint of the existing cable joint is not enough in strength, is easy to loosen and is easy to heat. The heat dissipation connector is provided with a male head, a micro diaphragm pump, a heat dissipation protective cover and a micro fan, a heat dissipation sheet is fixed on the outer side of the male head, a capillary heat dissipation pipeline is arranged between the heat dissipation connector and the heat dissipation protective cover, the insertion connector is provided with a female head, a threaded ring, a pressing sleeve, a spring plate and a spring, conical sleeves are arranged in the heat dissipation connector and the insertion connector, a cable and a fixed circular table are fixed on the male head and the female head, and a guide locking sleeve is arranged on the fixed circular table; according to the invention, the heat dissipation can be rapidly realized through the heat dissipation fins and the cooling liquid which circularly flows, so that serious heating is prevented, the female head is clamped in the male head, the spring plate is tightly abutted against the pressing sleeve, the positioning boss is clamped at the end part of the guide positioning groove, the connection is stable, the loosening is prevented, and the connection strength is improved.)

1. A heat dissipation anti-loosening cable joint comprises a heat dissipation joint (1) and an insertion joint (2), and is characterized in that a male head (3) is fixed in the heat dissipation joint (1), a plurality of uniformly distributed heat dissipation fins (16) are fixed on the outer side of the male head (3), the outer wall of each heat dissipation fin (16) is tightly attached to the inner wall of the heat dissipation joint (1), a micro diaphragm pump (12), a heat dissipation protection cover (15) and a plurality of micro fans (14) uniformly distributed in the circumference are fixed on the heat dissipation joint (1), a capillary heat dissipation pipeline (13) is arranged between the heat dissipation joint (1) and the heat dissipation protection cover (15), a female head (4) is fixed in the insertion joint (2), the female head (4) is clamped in the male head (3), a threaded ring (8), a compression sleeve (9), a spring plate (10) and a plurality of springs (11) uniformly distributed in the circumference are arranged on the insertion joint (2), and conical sleeves (7) are arranged in the heat dissipation joint (, the end parts of the male head (3) and the female head (4) are both fixed with a cable (6) and a fixed circular truncated cone (17), and the fixed circular truncated cone (17) is symmetrically provided with guide locking sleeves (5).

2. The heat dissipation anti-loosening cable joint according to claim 1, wherein a spiral water channel (1a) is formed in the heat dissipation joint (1), symmetrically-arranged guide positioning grooves (1b) are formed in the outer side of the heat dissipation joint (1), the end portion of the heat dissipation joint (1) is a threaded end, a circular sliding groove (2a) and a joint spring circular truncated cone (2b) are formed in the periphery of the insertion joint (2), an asymmetric guide semi-circular truncated cone (3a) is formed in the periphery of the male head (3), an asymmetric guide semi-circular groove (4a) is formed in the periphery of the female head (4), and the guide semi-circular truncated cone (3a) is clamped in the guide semi-circular groove (4 a).

3. The heat dissipation anti-loosening cable joint according to claim 2, wherein an outlet at the upper end of the spiral water channel (1a) is connected with an inlet of the micro diaphragm pump (12), an outlet of the micro diaphragm pump (12) is connected with an inlet of the capillary heat dissipation pipeline (13), an outlet of the capillary heat dissipation pipeline (13) is connected with the inlet of the spiral water channel (1a), an air outlet of the micro fan (14) is opposite to the capillary heat dissipation pipeline (13), and a plurality of ventilation openings (15a) which are uniformly distributed circumferentially are formed in the heat dissipation protective cover (15).

4. The heat dissipation anti-loosening cable joint as claimed in claim 2, wherein the threaded ring (8) is located in a circular sliding groove (2a), the threaded ring (8) is in threaded fit with the threaded end, a plurality of spring bosses (10a) uniformly distributed on the circumference are formed in the spring plate (10), a plurality of springs (11) are respectively sleeved on the spring bosses (10a), the end portions of the springs (11) are fixedly connected with a joint spring boss (2b), positioning bosses (9a) symmetrically arranged are arranged on the inner wall of the compression sleeve (9), the positioning bosses (9a) are located in guide positioning grooves (1b), and the bottom of the compression sleeve (9) is abutted to the end portions of the spring plate (10).

5. The heat dissipation anti-loosening cable joint as claimed in claim 1, wherein the fixing circular truncated cone (17) is provided with a clamping groove (17a), the inner wall of the guide locking sleeve (5) is provided with a corrugated groove (5a) and a clamping boss (5b), the outer wall of the guide locking sleeve (5) is provided with a plurality of countersunk holes (5c), and the clamping boss (5b) is clamped in the clamping groove (17 a).

6. The heat dissipation anti-loosening cable joint as claimed in claim 5, wherein the small diameter end of the tapered sleeve (7) abuts against the bottom of the heat dissipation joint (1) and the bottom of the insertion joint (2), the large diameter end of the tapered sleeve (7) abuts against the end of the guide locking sleeve (5), the axis of the cable (6) is collinear with the axis of the guide locking sleeve (5) and the tapered sleeve (7), and the micro diaphragm pump (12) and the micro fan (14) are electrically connected with the power line in the cable (6).

Technical Field

The invention belongs to the technical field of cable connectors, and particularly relates to a heat dissipation anti-loosening cable connector.

Background

The cable is the optical cable, the general name of article such as cable, the main use is installed in the control, connecting device, electric power transmission and control such as transmission power, be indispensable power equipment in daily life and the industry, the back is laid to the cable, in order to guarantee that the circuit is continuous, each section line must be connected for a whole, these junctions just must use the cable joint, current cable joint often passes through threaded connection, the screw thread is not hard up and is easily leaded to the junction pine to take off, simultaneously because transship in the cable joint, reasons such as the junction is stained, it is serious to lead to inside to generate heat easily, thereby cause the incident.

Through retrieval, as disclosed in chinese patent literature, a multi-core cable joint device [ application number: CN 201920352667.6; publication No.: CN209282496U ]. The multi-core cable joint device comprises a box body, wherein the inner wall surfaces of two sides of the box body are respectively provided with a wire inlet pipe, a connecting plate is arranged in the box body, a copper conductive column is vertically inserted into the connecting plate, a spiral groove is formed in the copper conductive column, two ends of the copper conductive column are sleeved with fastening sleeves, a wire fixing plate is arranged between the copper conductive column and the wire inlet pipe, a wire passing hole and a winding column are arranged on the wire fixing plate, a second fastening sleeve is sleeved on the winding column, a test pore channel is formed in the connecting plate, and a test hole is formed in the outer; although the device is convenient for wiring and detection, the strength of the joint of the cable joint is not enough, the cable joint is easy to loosen and generate heat easily.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a heat-dissipation anti-loosening cable joint, which aims to solve the technical problems that: how to improve the strength of the joint of the cable joint and keep good heat dissipation effect.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a heat dissipation locking cable joint that takes off, including radiator-sub and plug-in connection, the radiator-sub internal fixation has public head, the outside of public head is fixed with the fin of a plurality of equipartitions, the inner wall of radiator-sub is hugged closely to the outer wall of fin, be fixed with miniature diaphragm pump on the radiator-sub, the miniature fan of heat dissipation safety cover and a plurality of circumference equipartitions, be provided with capillary heat dissipation pipeline between radiator-sub and the heat dissipation safety cover, the plug-in connection internal fixation has female head, female head block is in public head, be provided with the screw ring on the plug-in connection, compress tightly the cover, the spring of spring board and a plurality of circumference equipartitions, all be provided with the taper sleeve in radiator-sub and the plug-in connection, the tip of public head and female head all is.

The working principle of the invention is as follows: through public head and female first block, can improve the steadiness of cable junction, prevent to drop, the fin plays good heat conduction effect, can be fast with the heat from the inner wall of heat dissipation source conduction to radiator-sub through the fin, miniature diaphragm pump provides power for the coolant liquid circulation, the heat dissipation safety cover can prevent the striking, protection capillary radiating pipe and miniature fan, can play sealing connection effect to radiator-sub and plug-in connection through the screw ring, through spring deformation effect, make the spring plate closely contradict with compressing tightly the cover, it is firm to make radiator-sub and plug-in connection, prevent to drop, direction lock sleeve can lock the cable, it is not hard up to prevent that cable and articulate, and direction lock sleeve plays the guide effect simultaneously, can prevent that the cable from leading to the rupture at the junction bending.

The heat dissipation connector is internally provided with a spiral water channel, the outer side of the heat dissipation connector is provided with symmetrically arranged guide positioning grooves, the end part of the heat dissipation connector is a threaded end, the periphery of the insertion connector is provided with a circular sliding groove and a connector spring circular table, the periphery of a male head is provided with an asymmetrical guide semi-circular table, the periphery of a female head is provided with an asymmetrical guide semi-circular groove, and the guide semi-circular table is clamped in the guide semi-circular groove.

Structure more than adopting, through the cooling liquid heat dissipation circulation in the spiral water course, can play the radiating effect, the guide positioning groove can the block compress tightly the cover, makes the articulate firm, prevents the pine and takes off, and guide semi-circular platform block can play the guide positioning effect in the guide semi-circular groove, prevents to insert the mistake.

The outlet of the upper end of the spiral water channel is connected with the inlet of the miniature diaphragm pump, the outlet of the miniature diaphragm pump is connected with the inlet of the capillary heat dissipation pipeline, the outlet of the capillary heat dissipation pipeline is connected with the inlet of the spiral water channel, the air outlet of the miniature fan is opposite to the capillary heat dissipation pipeline, and the heat dissipation protective cover is provided with a plurality of ventilation openings uniformly distributed on the circumference.

By adopting the structure, the micro diaphragm pump provides power for the circulation of the cooling liquid in the capillary heat dissipation pipeline and the spiral water channel, the cooling liquid absorbing heat in the spiral water channel flows to the capillary heat dissipation pipeline for heat dissipation, and the micro fan blows air to accelerate the air flow, so that the capillary heat dissipation pipeline can dissipate heat better.

The threaded ring is located the circular spout, and threaded ring and screw thread end screw-thread fit set up the spring boss of a plurality of circumference equipartitions on the spring board, and a plurality of spring overlaps respectively to be established on the spring boss, and the tip of spring all with joint spring round platform fixed connection, compress tightly the cover inner wall and be equipped with the location boss of symmetry setting, and the location boss is located the direction constant head tank, and the bottom that compresses tightly the cover offsets with the tip of spring board.

Structure more than adopting, threaded ring and screw thread end screw-thread fit, connect firmly, can play sealed effect, and the spring keeps the oppression state, under spring deformation power effect, makes spring plate and compresses tightly the cover and closely contradict, and the location boss is located the direction constant head tank, plays limiting displacement to prevent that the cable joint from taking off and taking off.

The clamping groove is formed in the fixed circular truncated cone, the wave-shaped groove and the clamping boss are arranged on the inner wall of the guide locking sleeve, the countersunk holes are formed in the outer wall of the guide locking sleeve, and the clamping boss is clamped in the clamping groove.

Structure more than adopting, the wave form groove can increase the friction between direction lock sleeve and the cable to locking cable prevents that the junction of cable and joint is not hard up, and the lock sleeve that leads simultaneously plays the guide effect to the cable, prevents that the cable from leading to the rupture in the junction is crooked.

The small-diameter end of the conical sleeve is abutted to the bottom of the heat dissipation connector and the bottom of the insertion connector respectively, the large-diameter end of the conical sleeve is abutted to the end of the guide locking sleeve, the axis of the cable is collinear with the axes of the guide locking sleeve and the conical sleeve respectively, and the miniature diaphragm pump and the miniature fan are electrically connected with a power line in the cable respectively.

Compared with the prior art, this heat dissipation locking cable joint that takes off has following advantage:

1. the heat is conducted through the radiating fins, the cooling liquid circularly flows in the spiral water channel and the capillary radiating pipeline, heat can be quickly radiated, serious heating at a joint is prevented, safety accidents are prevented, the female head is clamped in the male head, the spring enables the spring plate to be tightly abutted against the pressing sleeve, the positioning boss is clamped at the end part of the guide positioning groove, the joint is connected stably, loosening is prevented, and the connecting strength is improved;

2. the guide semi-circular truncated cone is clamped in the guide semi-circular groove to play a role in guiding and positioning, so that wrong insertion is prevented;

3. the direction lock sleeve can lock the cable, prevents that cable and joint from becoming flexible, and the direction lock sleeve plays the guide effect simultaneously, can prevent that the cable from leading to the rupture at the junction bending.

Drawings

FIG. 1 is a schematic diagram of an axial structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic illustration of an explosive structure of the present invention;

FIG. 4 is a schematic diagram of an axial structure of a heat sink end according to the present invention;

FIG. 5 is a schematic axial view of the insertion end of the present invention;

in the figure: 1-heat dissipation connector, 1 a-spiral water channel, 1 b-guide positioning groove, 2-insertion connector, 2 a-circular sliding groove, 2 b-connector spring circular table, 3-male head, 3 a-guide semi-circular table, 4-female head, 4 a-guide semi-circular groove, 5-guide locking sleeve, 5 a-corrugated groove, 5 b-clamping boss, 5 c-counter bore, 6-cable, 7-conical sleeve, 8-threaded ring, 9-pressing sleeve, 9 a-positioning boss, 10-spring plate, 10 a-spring boss, 11-spring, 12-micro diaphragm pump, 13-capillary heat dissipation pipeline, 14-micro fan, 15-heat dissipation protective cover, 15 a-vent, 16-heat dissipation fin, 17-fixed round table, 17 a-clamping groove.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-5, the present embodiment provides a heat dissipation anti-loose cable joint, which includes a heat dissipation joint 1 and an insertion joint 2, a male connector 3 is fixed in the heat dissipation joint 1, in the present embodiment, the fixing manner is a bolt connection, a plurality of uniformly distributed heat dissipation fins 16 are fixed on an outer side of the male connector 3, outer walls of the heat dissipation fins 16 are tightly attached to an inner wall of the heat dissipation joint 1, a micro diaphragm pump 12, a heat dissipation protection cover 15 and a plurality of micro fans 14 uniformly distributed circumferentially are fixed on the heat dissipation joint 1, in the present embodiment, the fixing manner is a bolt connection, a capillary heat dissipation pipeline 13 is arranged between the heat dissipation joint 1 and the heat dissipation protection cover 15, a female connector 4 is fixed in the insertion joint 2, in the present embodiment, the fixing manner is a bolt connection, the female connector 4 is clamped in the male connector 3, and the insertion joint 2 is provided with, The heat dissipation connector comprises a spring plate 10 and a plurality of springs 11 which are uniformly distributed on the circumference, conical sleeves 7 are arranged in a heat dissipation connector 1 and an insertion connector 2, a cable 6 and a fixed circular truncated cone 17 are fixed at the end parts of a male connector 3 and a female connector 4, in the embodiment, the fixing mode adopts bolt connection, and guide locking sleeves 5 are symmetrically arranged on the fixed circular truncated cone 17; through public first 3 and female 4 block, can improve the steadiness of 6 junctions of cable, prevent to drop, fin 16 plays good heat conduction effect, can conduct the heat to the inner wall of radiation joint 1 from the source of generating heat fast through fin 16, miniature diaphragm pump 12 provides power for the coolant liquid circulation, heat dissipation safety cover 15 can prevent the striking, protection capillary heat dissipation pipeline 13 and miniature fan 14, can play sealing connection effect to radiation joint 1 and plug-in connector 2 through the screw ring 8, through the effect of spring 11 deformation, make spring plate 10 and compress tightly the inseparable conflict of cover 9, it is firm to make radiation joint 1 and plug-in connector 2 connect, prevent to drop, direction lock sleeve 5 can lock cable 6, it is not hard up with the splice junction to prevent that cable 6 from not hard up, and direction lock sleeve 5 plays the guide effect simultaneously, can prevent that cable 6 from leading to in the crooked rupture of junction.

A spiral water channel 1a is formed in the heat dissipation connector 1, symmetrically-arranged guide positioning grooves 1b are formed in the outer side of the heat dissipation connector 1, the end portion of the heat dissipation connector 1 is a threaded end, a circular sliding groove 2a and a connector spring circular truncated cone 2b are formed in the periphery of the insertion connector 2, an asymmetric guide semi-circular truncated cone 3a is formed in the periphery of the male connector 3, an asymmetric guide semi-circular groove 4a is formed in the periphery of the female connector 4, and the guide semi-circular truncated cone 3a is clamped in the guide semi-circular groove 4; through cooling liquid radiating circulation in spiral water channel 1a, can play the radiating effect, direction constant head tank 1b can block and compress tightly cover 9, makes the articulate firm, prevents the pine and takes off, and direction half round platform 3a block can play the guiding orientation effect in direction half round slot 4a, prevents to insert the mistake.

An outlet at the upper end of the spiral water channel 1a is connected with an inlet of the micro diaphragm pump 12, an outlet of the micro diaphragm pump 12 is connected with an inlet of the capillary heat dissipation pipeline 13, an outlet of the capillary heat dissipation pipeline 13 is connected with an inlet of the spiral water channel 1a, an air outlet of the micro fan 14 is over against the capillary heat dissipation pipeline 13, and a plurality of ventilation openings 15a which are uniformly distributed on the circumference are formed in the heat dissipation protective cover 15; the micro diaphragm pump 12 provides power for the circulation of the cooling liquid in the capillary heat dissipation pipeline 13 and the spiral water channel 1a, the cooling liquid absorbing heat in the spiral water channel 1a flows to the capillary heat dissipation pipeline 13 for heat dissipation, and the micro fan 14 blows air to accelerate the air flow, so that the capillary heat dissipation pipeline 13 can dissipate heat better.

The threaded ring 8 is positioned in the circular sliding groove 2a, the threaded ring 8 is in threaded fit with the threaded end, a plurality of spring bosses 10a which are uniformly distributed circumferentially are arranged on the spring plate 10, a plurality of springs 11 are respectively sleeved on the spring bosses 10a, the end parts of the springs 11 are fixedly connected with the connector spring circular truncated cone 2b, the inner wall of the pressing sleeve 9 is provided with symmetrically arranged positioning bosses 9a, the positioning bosses 9a are positioned in the guide positioning grooves 1b, and the bottom of the pressing sleeve 9 is abutted against the end part of the spring plate 10; screw ring 8 and screw thread end screw-thread fit, are connected firmly, can play sealing effect, and spring 11 keeps the oppression state, under 11 deformation effects of force of spring, makes spring plate 10 closely contradict with compressing tightly cover 9, and location boss 9a is located direction constant head tank 1b, plays limiting displacement to prevent that the cable joint from taking off.

A clamping groove 17a is formed in the fixed circular truncated cone 17, a wave-shaped groove 5a and a clamping boss 5b are formed in the inner wall of the guide locking sleeve 5, a plurality of countersunk holes 5c are formed in the outer wall of the guide locking sleeve 5, and the clamping boss 5b is clamped in the clamping groove 17 a; the wave-shaped groove 5a can increase the friction between the guide locking sleeve 5 and the cable 6, so that the cable 6 is locked, the joint of the cable 6 and a connector is prevented from loosening, meanwhile, the guide locking sleeve 5 plays a role in guiding the cable 6, and the cable 6 is prevented from being bent at the joint to cause breakage.

The minor diameter end of taper sleeve 7 contradicts respectively in the bottom of thermal-arrest joint 1 and plug-in connection 2, and the tip at direction lock sleeve 5 is all contradicted to the big footpath end of taper sleeve 7, and the axis of cable 6 respectively with the axis collineation of direction lock sleeve 5 and taper sleeve 7, miniature diaphragm pump 12 and miniature fan 14 respectively with the power cord electric connection in the cable 6.

The working principle of the invention is as follows:

when the device is used, the heat dissipation connector 1 and the conical sleeve 7 are sleeved on one of the cables to be connected, the end part of the cable 6 is welded on the male head 3 as required, after the welding is finished, the two guide locking sleeves 5 are clamped on the fixed circular truncated cone 17, the cable 6 is connected and fixed through the bolt, and the conical sleeve 7, the guide locking sleeves 5 and the male head 3 are sequentially fixed in the heat dissipation connector 1.

The pressing sleeve 9, the inserting joint 2 and the conical sleeve 7 are sequentially sleeved on the other cable 6, the end part of the cable 6 is welded on the female head 4 as required, after welding is completed, the two guide locking sleeves 5 are clamped on the fixed circular truncated cone 17 and are connected and fixed through bolts, and the conical sleeve 7, the guide locking sleeves 5 and the female head 4 are sequentially fixed in the inserting joint 2.

The wave-shaped groove 5a can increase the friction between the guide locking sleeve 5 and the cable 6, so that the cable 6 is locked, the joint of the cable 6 and a connector is prevented from loosening, meanwhile, the guide locking sleeve 5 plays a role in guiding the cable 6, and the cable 6 is prevented from being bent at the joint to cause breakage.

When the cable 6 is connected, with female 4 blocks in public first 3, can improve the steadiness of 6 junctions of cable, prevent to drop, direction half round platform 3a block can play the guiding orientation effect in direction half slot 4a, prevent to insert the mistake, rotating screw ring 8, screw ring 8 and screw thread end screw-thread fit, it is firm to connect, can play the sealing effect, push down compressing sleeve 9, location boss 9a removes in direction constant head tank 1b, and oppress spring 11 through spring plate 10 spinning, light tight cover 9 and loosen, location boss 9a removes the tip to direction constant head tank 1b, spring 11 keeps the oppression state, under spring 11 deformation effect, spring plate 10 closely contradicts with compressing sleeve 9, make the articulate firm, prevent the pine to take off.

When the cable 6 generates heat inside the connector due to overload, dirt at the joint and other reasons, the heat can be quickly conducted to the inner wall of the heat dissipation connector 1 from a heat source through the heat dissipation fins 16, the cooling liquid in the spiral water channel 1a absorbs the heat in the connector, power is provided for circulation through the micro diaphragm pump 12, the cooling liquid flows to the capillary heat dissipation pipeline 13 for heat dissipation, the cooled cooling liquid flows back to the spiral water channel 1a for circulation, the micro fan 14 blows air to accelerate air flow, the capillary heat dissipation pipeline 13 can dissipate heat better, the heat dissipation protective cover 15 can prevent impact, and the capillary heat dissipation pipeline 13 and the micro fan 14 are protected.

In conclusion, heat is conducted through the radiating fins 16, cooling liquid flows in the spiral water channel 1a and the capillary radiating pipeline 13 in a circulating mode, heat can be quickly radiated, serious heating at a joint is prevented, safety accidents are prevented from being caused, the female head 4 is clamped in the male head 3, the spring 11 enables the spring plate 10 to be tightly abutted to the pressing sleeve 9, the positioning boss 9a is clamped at the end portion of the guide positioning groove 1b, the joint is stably connected, looseness is prevented, and connection strength is improved; the threaded ring 8 is in threaded connection with the threaded end, so that a sealing effect can be achieved, and the guide semi-circular truncated cone 3a can be clamped in the guide semi-circular groove 4a to achieve a guiding and positioning effect, so that wrong insertion is prevented; the direction lock sleeve 5 can lock the cable 6, prevents that cable 6 and joint from becoming flexible, and direction lock sleeve 5 plays the guide effect simultaneously, can prevent that cable 6 from leading to the rupture at the junction bending.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.