阅读说明：本技术 一种防水电缆接头 (Waterproof cable joint ) 是由 杨元 王超 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种防水电缆接头,包括铝管、铜管,所述铝管与铜管固定连接,所述铝管和铜管内部开设直径相同的空腔,使用者将两组连杆对准卡合槽,随后将连杆沿着卡合槽向下按压,此时卡块首先与卡合槽接触,并在使用者提供的持续按压力的作用下使得两组连杆以铰接处为支点进行翻转并挤压弹簧,此时卡块沿着卡合槽运动,直至卡块卡入卡槽内部,并持续受到弹簧通过连杆传递来弹力,并通过压缩弹簧相反方向挤压,卡槽数量为若干组,当卡块完全卡入卡槽内部后,连杆下端抵住导线,从而将导线固定,当使用者需要将导线拆下时,用手指捏连杆的上端,从而使得连杆上端间隙变小,进而使得卡块入卡合槽内部的连杆之间的间隙小。(The invention discloses a waterproof cable joint, which comprises an aluminum pipe and a copper pipe, wherein the aluminum pipe is fixedly connected with the copper pipe, cavities with the same diameter are arranged in the aluminum pipe and the copper pipe, a user aligns two groups of connecting rods with a clamping groove, then presses the connecting rods downwards along the clamping groove, a clamping block is firstly contacted with the clamping groove, the two groups of connecting rods turn over by taking a hinged part as a fulcrum under the action of continuous pressing force provided by the user and extrude a spring, the clamping block moves along the clamping groove until the clamping block is clamped into a clamping groove, the clamping block is continuously subjected to elastic force transmitted by the spring through the connecting rods and is extruded in the opposite direction of a compression spring, the clamping grooves are a plurality of groups, when the clamping block is completely clamped into the clamping groove, the lower ends of the connecting rods abut against a wire so as to fix the wire, when the wire needs to be dismounted by the user, the upper ends of the connecting rods are pinched by fingers so as to reduce the gaps of the upper ends of the connecting rods, so that the gap between the connecting rods of the fixture block inserted into the clamping groove is small.)

1. The utility model provides a waterproof cable joint, includes aluminum pipe (1), copper pipe (11), its characterized in that: the aluminum pipe (1) is fixedly connected with the copper pipe (11), the cavities (15) with the same diameter are formed in the aluminum pipe (1) and the copper pipe (11), the cable (4) is movably connected in the cavity (15), the clamping components (2) are arranged on the outer surfaces of the upper ends of the aluminum pipe (1) and the copper pipe (11), each clamping component (2) comprises a clamping groove (21), a clamping block (22), a connecting rod (23), a clamping groove (24) and a spring (25), the clamping groove (21) is formed in the outer surface of the upper end of the aluminum pipe (1), the connecting rod (23) is located in the clamping groove (21), the connecting rods (23) are in a Z-shaped structural design, the connecting rods (23) are hinged with one another, the clamping blocks (22) are fixedly connected to the outer surface of one side, close to the clamping groove (21), the clamping grooves (24) are formed in positions, corresponding to the clamping blocks (22), of the two sides of the inner wall of the clamping groove (21), the aluminum pipe is characterized in that the clamping groove (24) and the clamping block (22) are matched with each other correspondingly and are both designed to be of a trapezoidal structure, the adjacent surfaces of the upper ends of the two groups of connecting rods (23) are fixedly connected through a spring (25), rubber sleeves (12) are arranged on the annular outer surfaces of the aluminum pipe (1) and the copper pipe (11), and a locking assembly (3) is arranged on the outer surface of the front end of the copper pipe (11).

2. The watertight cable joint according to claim 1, wherein: the hinged positions of the two groups of connecting rods (23) are located in one fourth of the connecting rods (23) from top to bottom, the height of each connecting rod (23) is twice the depth of the clamping groove (21), the lower ends of the connecting rods (23) are designed to be arc-shaped structures, and the connecting rods (23) are made of ductile metal materials.

3. The watertight cable joint according to claim 1, wherein: aluminum pipe (1) rear end surface and rubber sleeve (12) rear end fixed connection, copper pipe (11) front end annular surface fixed connection has magnet (123), rubber sleeve (12) correspond the position with magnet (123) and are provided with sheetmetal (124), sheetmetal (124) and magnet (123) magnetic force adsorb, rubber sleeve (12) front end fixed connection has rubber band (125), and rubber sleeve (12) cover copper pipe (11) and aluminum pipe (1), aluminum pipe (1) and inside the running through of copper pipe (11) are seted up and are put ventilation hole (13), and its inside fixedly connected with fin (131), fin (131) crisscross distribution, magnet (123) are located the border of ventilation hole (13).

4. A watertight cable joint according to claim 3, wherein: the rubber sleeve (12) surface fixed connection has inflation bag (121), inflation bag (121) are whole to be the distribution of screw thread form along rubber sleeve (12) surface, inflation bag (121) longitudinal section is oval structural design, and its major axis terminal surface and rubber sleeve (12) contact, inflation bag (121) rear end fixed connection has water filling port (122).

5. The watertight cable joint according to claim 1, wherein: the locking assembly (3) comprises a thread groove (14), a locking sleeve (31), a resisting rod (32) and a plug plate (33), the locking sleeve (31) is connected with the inner thread of the thread groove (14), the cable (4) penetrates through the locking sleeve (31), the inner wall of the locking sleeve (31) is designed to be an inclined structure, a resisting rod (32) is fixedly connected to the outer surface of the front end of the copper pipe (11) at a position close to the inner side of the thread groove (14), the front end of the resisting rod (32) is designed to be an inclined structure, the angle of the supporting rod is parallel to the inner wall of the locking sleeve (31), one side of the supporting rod (32) close to the cable (4) is fixedly connected with an inserting plate (33), a vertical angle is formed between the inserting plate (33) and the supporting rod (32), and a sealing ring (38) is arranged between the locking sleeve and the locking sleeve, and the annular outer surface of the locking sleeve (31) is fixedly connected with a pressure plate (311).

6. The watertight cable joint according to claim 5, wherein: locking subassembly (3) still include shell fragment (34), locking plate (35), recess (36), arch (351), squeeze bag (37), resist one side that pole (32) are close to cable (4) and the one end fixed connection of shell fragment (34), shell fragment (34) other end and locking plate (35) fixed connection, locking plate (35) are triangle-shaped structural design, and a plurality of groups of protruding (351) of locking plate (35) lower extreme external surface fixed connection, recess (36) are seted up to cable (4) annular surface, recess (36) and protruding (351) match each other to correspond, cavity (15) and the position fixed connection squeeze bag (37) that locking plate (35) correspond.

Technical Field

The invention relates to the technical field of cable connectors, in particular to a waterproof cable connector.

Background

Present electrical equipment often meets the condition that copper wire and aluminium wire are connected when using, copper wire and aluminium wire are connected the back in the use, copper wire and aluminium wire's junction easily produce copper aluminium oxidation, the oxide layer can make contact resistance increase, therefore generate heat and produce high temperature and make low melting point aluminium melt, and the copper melting point is high, the aluminium that melts does not fuse with copper mutually, can lead to area of contact to continuously reduce, until the disconnection, the power supply line open phase appears, short circuit, electrical fault such as power failure. Moreover, sparks are easy to generate in the copper-aluminum oxidation process, so that the safety of peripheral equipment is endangered;

the prior patent (publication number: CN207834593U) is a copper aluminum joint, comprising: the clamping device comprises a first clamping head, a second clamping head, a first locking piece and a second locking piece; the first chuck comprises a first connecting part and a first clamping part which are connected with each other, and a first wire guide groove which penetrates through the first connecting part and the first clamping part; the second chuck comprises a second connecting part and a second clamping part which are connected with each other, and a second wire guide groove which penetrates through the second connecting part and the second clamping part; the first connecting part is connected with the second connecting part, and the first wire groove is communicated with the second wire groove; the first locking member is connected with the first clamping portion, and the second locking member is connected with the second clamping portion. The copper-aluminum joint can greatly improve the connection stability and safety of the copper-aluminum wire and is beneficial to reducing the power transmission and distribution cost.

1. In the patent, the copper wire and the aluminum wire are butted by matching the first connecting part and the second connecting part of the copper pipe, but the sealing of a butt joint is not mentioned in the patent, because the butt joint of the wires often needs an external environment, if rainwater permeates into the butt joint part of the wires, poor wire contact can occur if the rainwater is light, and safety accidents such as electric leakage and the like can be directly caused if the rainwater is heavy; 2. because copper and aluminum are made of different materials and have different conductive effects, the connecting part of two wires has contact resistance, and the numerical value of the contact resistance is generally larger than the body resistance of the wire, so that the wire contact head can generate larger heat, and particularly, the electricity utilization fire disaster can be caused when the heating condition at the joint of the electricity utilization peak in summer is serious; 3. the traditional copper-aluminum joint mostly adopts the screw to lock the wire inside, and the operation needs corresponding instrument, and the operation process is comparatively loaded down with trivial details and wastes time and energy, is unfavorable for the quick installation of joint.

To this end, a watertight cable joint is proposed.

Disclosure of Invention

The present invention is directed to a waterproof cable joint to solve the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a waterproof cable joint comprises an aluminum pipe and a copper pipe, wherein the aluminum pipe is fixedly connected with the copper pipe, cavities with the same diameter are formed in the aluminum pipe and the copper pipe, a cable is movably connected in each cavity, clamping components are arranged on the outer surfaces of the upper ends of the aluminum pipe and the copper pipe and comprise clamping grooves, clamping blocks, connecting rods, clamping grooves and springs, the clamping grooves are formed in the outer surface of the upper end of the aluminum pipe and the outer surface of the upper end of the copper pipe, the connecting rods are located in the clamping grooves, the connecting rods are in a Z-shaped structural design, the connecting rods and the connecting rods are hinged to each other, the clamping blocks are fixedly connected to the outer surface of one side, close to the clamping grooves, of the connecting rods, clamping grooves are formed in positions, corresponding to the clamping blocks, of the two sides of the inner wall of each clamping groove and the clamping blocks are correspondingly matched with each other, the two clamping grooves and the clamping blocks are both in a trapezoidal structural design, the adjacent surfaces of the upper ends of the two groups of the connecting rods are fixedly connected through the springs, and rubber sleeves are arranged on the annular outer surfaces of the aluminum pipe and the copper pipe, and a locking assembly is arranged on the outer surface of the front end of the copper pipe.

By adopting the technical scheme, the traditional wiring mode is more complicated, when in work, a user aligns two groups of connecting rods with the clamping groove and then presses the connecting rods downwards along the clamping groove, at the moment, the fixture block is firstly contacted with the clamping groove, the two groups of connecting rods turn over by taking the hinged part as a pivot under the action of continuous pressing force provided by the user and extrude the spring, at the moment, the fixture block moves along the clamping groove until the fixture block is clamped into the clamping groove and continuously receives the elastic force transmitted by the spring through the connecting rods and extrudes by compressing the spring in the opposite direction, the clamping grooves are in a plurality of groups, when the fixture block is completely clamped into the clamping groove, the lower ends of the connecting rods support against the wire, so that the wire is fixed, when the wire needs to be disassembled by the user, the upper ends of the connecting rods are held by fingers, so that the gap between the connecting rods at the upper ends of the connecting rods is reduced, and further the gap between the connecting rods of the fixture block inserted into the clamping groove is small, the fixture block is forced to be separated from the limit of the clamping groove, and finally the connecting rod is taken out.

Preferably, the mutual hinged position of two sets of connecting rods is located the connecting rod one fourth department from top to bottom, the height of connecting rod is the twice of block groove degree of depth, the connecting rod lower extreme is the arc structural design, the connecting rod comprises the ductile metal material.

Through adopting above-mentioned technical scheme, in operation, because the articulated position of two sets of connecting rods is the quarter department of connecting rod, when the user changes the distance between the connecting rod upper end, the displacement volume of connecting rod lower extreme will be greater than the displacement volume of connecting rod upper end, the purpose is when subsequently dismantling the connecting rod, hold between the fingers two connecting rods through relative direction, and rotate through articulated department, can make lower extreme relative displacement, force the fixture block to break away from the draw-in groove, the connecting rod constitutes for elastic metal material, the user inserts the block groove with two sets of connecting rods, force the circular arc region of connecting rod lower extreme and contact with the wire, when the connecting rod continuously receives user's pressing force, force the connecting rod lower extreme to appear crooked, thereby elasticity that produces through the connecting rod is semiannular parcel in the wire surface, carry out further clamp to the wire and fix, improve and press from both sides tight effect.

Preferably, the outer surface of the rear end of the aluminum pipe is fixedly connected with the rear end of the rubber sleeve, the annular outer surface of the front end of the copper pipe is fixedly connected with a magnet, the rubber sleeve is provided with a metal sheet corresponding to the magnet, the metal sheet is magnetically adsorbed with the magnet, the front end of the rubber sleeve is fixedly connected with a rubber band, the rubber sleeve covers the copper pipe and the aluminum pipe, the aluminum pipe is provided with a ventilation hole through the inside of the copper pipe, cooling fins are fixedly connected with the inside of the aluminum pipe, the cooling fins are distributed in a staggered mode, and the magnet is located at the edge of the ventilation hole.

Through adopting above-mentioned technical scheme, in order to increase the water-proof effects that this connects, in operation, the user draws the rubber sleeve to copper pipe front end surface from the aluminum pipe rear end, and tighten through rubber band front end opening, and the complete parcel of copper pipe, the realization is to the protection of copper pipe, the magnet of copper pipe front end carries out magnetic force with the sheetmetal of rubber sleeve and adsorbs simultaneously, the rubber sleeve corresponds the position with the ventilation hole and sets up the hole, and it carries out cold and hot exchange to be provided with the heat that the fin produced copper pipe and aluminum pipe and outside air through the hole in ventilation hole inside, the design of fin can increase the area of air cold and hot exchange and take away the heat on fin surface, thereby improve the radiating effect that this connects, ventilation hole internal surface has plated beryllium oxide.

Preferably, the outer surface of the rubber sleeve is fixedly connected with an expansion bag, the expansion bag is integrally distributed along the outer surface of the rubber sleeve in a threaded manner, the longitudinal section of the expansion bag is designed to be an oval structure, the end face of the long axis of the expansion bag is in contact with the rubber sleeve, and the rear end of the expansion bag is fixedly connected with a water filling port.

By adopting the technical scheme, in order to further improve the heat dissipation effect, when in work, a user injects cooling liquid into the expansion bag through the water injection port to ensure that the expansion bag with the elliptical design is expanded into a circular shape, thereby shortening the long axis of the expansion capsule, enabling the short axis to be long, tensioning the rubber sleeve to wrap the rubber sleeve on the surface of the joint, thereby tightening and fixing the rubber sleeve and the joint by the expansion bag in the water injection expansion state, generating the external force of continuous extrusion on the connecting rod by the rubber sleeve, improving the clamping effect of the connecting rod and the clamping groove, when the connecting rod is completely inserted, the exposed length of the upper end is about 0.5cm, the connecting rod is prevented from puncturing the rubber sleeve, simultaneously through the inside coolant liquid absorption of inflation bag joint the heat that gives off, the water filling port upper end is provided with the rubber buffer person of facilitating the use and pours into the coolant liquid into, increase radiating effect that can step forward through above-mentioned technical scheme.

Preferably, copper pipe front end surface is provided with locking Assembly, locking Assembly includes thread groove, locking sleeve, resistance bar, picture peg, the inside threaded connection locking sleeve of thread groove, and the cable runs through locking sleeve, the locking sleeve inner wall is the slope structural design, copper pipe front end surface is close to the inboard position fixedly connected with resistance bar of thread groove, the front end of resistance bar is the slope structural design, and its angle and locking sleeve inner wall are to parallel, the resistance bar is close to one side fixed connection picture peg of cable, be perpendicular angle between picture peg and the resistance bar, and be provided with the sealing washer between the two, locking sleeve annular surface fixedly connected with clamp plate.

Through adopting above-mentioned technical scheme, in order to improve the sealed effect of cable and copper pipe contact, in operation, the user rotates the locking sleeve, make it along the thread groove rearward movement, the clamp plate of locking sleeve annular surface fixed connection can resist the rubber sleeve this moment, increase the fastening effect of rubber sleeve and copper pipe, simultaneously when the locking sleeve rearward movement and inclined plane can contact with the inclined plane of resisting the pole, and force the resisting pole to the cable direction is crooked, thereby make the resisting pole extrude the sealing washer of cup jointing at cable annular surface, thereby improve the sealed effect of cable and joint and prevent that the rainwater from getting into, simultaneously the resisting pole drives the picture peg and carries out the interlock to the annular surface of cable, thereby improve the fastening effect of cable and joint.

Preferably, the locking assembly further comprises a spring plate, a locking plate, a groove, a protrusion and an extrusion bag, one side of the resisting rod, which is close to the cable, is fixedly connected with one end of the spring plate, the other end of the spring plate is fixedly connected with the locking plate, the locking plate is designed to be of a triangular structure, a plurality of groups of protrusions are fixedly connected to the outer surface of the lower end of the locking plate, the groove is formed in the annular outer surface of the cable, the groove and the protrusion are correspondingly matched with each other, and the cavity is fixedly connected with the extrusion bag at a position corresponding to the locking plate.

Through adopting above-mentioned technical scheme, in order to further improve the fixed effect of cable and joint, in operation, based on above-mentioned embodiment, when the resistance bar downwarping, the shell fragment drives the locking plate and moves to the clearance department between cavity and the cable, the locking plate is gone into inside the recess through protruding card and is increased the frictional force between locking plate and the cable, the locking plate takes place to deform in clearance department after receiving the extrusion of resistance bar for the stereoplasm rubber, thereby improve the fixed effect of cable and joint, the locking plate is along the clearance to keeping away from the direction motion of locking sleeve and when extrudeing the extrusion bag, thereby force the extrusion bag to take place the inflation and closely laminate the cavity inner wall and further improve the sealed rainwater that cable and joint and prevent to get into and connect inside the short circuit that leads to the fact.

Compared with the prior art, the invention has the beneficial effects that:

1. by adding the clamping component in the device, under the mutual matching of the connecting rods and the clamping grooves, the two groups of connecting rods can be quickly inserted into the clamping grooves to fix the cables in the joints without an external tool, so that a user can conveniently and quickly install the wires, and the installation time is greatly saved;

2. the ventilation holes and the radiating fins are added in the device, so that the flow of heat and cold exchange between the joint and external air is increased, the radiating effect of the joint is improved, and potential safety hazards such as fire disasters caused by overheating of the joint are avoided;

3. through add locking Assembly in the device, locking sleeve and supporting mutually support under the board hold tightly fixedly to the inside cable of cavity to promote the sealed effect of cable and joint department, thereby reach waterproof effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a structural view of an aluminum pipe and a copper pipe of the invention;

FIG. 3 is a structural view of the snap-fit assembly of the present invention;

FIG. 4 is an extruded cable joint view of the snap assembly of the present invention;

FIG. 5 is an enlarged view at B of FIG. 4 of the present invention;

fig. 6 is an enlarged view at a in fig. 2 of the present invention.

Description of reference numerals:

1. an aluminum tube; 11. a copper pipe; 12. a rubber sleeve; 121. an inflation bladder; 122. a water injection port; 123. a magnet; 124. a metal sheet; 125. a rubber band; 13. a vent hole; 131. a heat sink; 14. a thread groove; 15. a cavity; 2. clamping the assembly; 21. a clamping groove; 22. a clamping block; 23. a connecting rod; 24. a card slot; 25. a spring; 3. a locking assembly; 31. a locking sleeve; 311. pressing a plate; 32. a resisting rod; 33. inserting plates; 34. a spring plate; 35. a locking plate; 351. a protrusion; 36. a groove; 37. extruding the bag; 38. a seal ring; 4. an electrical cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution:

as shown in fig. 1, 2, 3, 4 and 5, a waterproof cable joint comprises an aluminum pipe 1 and a copper pipe 11, wherein the aluminum pipe 1 is fixedly connected with the copper pipe 11, a cavity 15 with the same diameter is formed inside the aluminum pipe 1 and the copper pipe 11, a cable 4 is movably connected inside the cavity 15, a clamping component 2 is arranged on the outer surface of the upper end of the aluminum pipe 1 and the copper pipe 11, the clamping component 2 comprises a clamping groove 21, a clamping block 22, a connecting rod 23, a clamping groove 24 and a spring 25, the clamping groove 21 is formed on the outer surface of the upper end of the aluminum pipe 1, the connecting rod 23 is positioned inside the clamping groove 21, the connecting rod 23 is in a zigzag structural design, the connecting rods 23 and the two groups are hinged with each other, the clamping block 22 is fixedly connected to the outer surface of one side of the connecting rod 23 close to the clamping groove 21, the clamping grooves 24 are formed in positions, corresponding to the clamping blocks 22, on two sides of the inner wall of the clamping groove 21, the clamping grooves 24 and the clamping blocks 22 are matched with each other correspondingly and are both in a trapezoidal structure design, the adjacent surfaces of the upper ends of the two groups of connecting rods 23 are fixedly connected through springs 25, the rubber sleeves 12 are arranged on the annular outer surfaces of the aluminum pipe 1 and the copper pipe 11, and the locking assembly 3 is arranged on the outer surface of the front end of the copper pipe 11.

By adopting the technical scheme, the traditional wiring mode is more complicated, during work, a user aligns two groups of connecting rods 23 with the clamping groove 21, then presses the connecting rods 23 downwards along the clamping groove 21, at the moment, the fixture block 22 is firstly contacted with the clamping groove 21, the two groups of connecting rods 23 are overturned by taking the hinged part as a pivot under the action of continuous pressing force provided by the user and extrude the spring 25, at the moment, the fixture block 22 moves along the clamping groove 21 until the fixture block 22 is clamped into the clamping groove 24, the elasticity is continuously transmitted by the spring 25 through the connecting rods 23, the fixture block 22 is extruded in the opposite direction of the compression spring 25, the clamping grooves 24 are in a plurality of groups, after the fixture block 22 is completely clamped into the clamping groove 24, the lower ends of the connecting rods 23 abut against the lead, so as to fix the lead, when the lead needs to be detached by the user, the upper end of the connecting rods 23 is pinched by fingers, so as to reduce the gap between the upper ends of the connecting rods 23, and then the gap between the connecting rods 23 that the fixture block 22 enters the clamping groove 21 is small, the fixture block 22 is forced to be separated from the limitation of the clamping groove 24, and finally the connecting rods 23 are taken out.

As an embodiment of the present invention, as shown in fig. 5, the mutual hinge joint of the two sets of the connecting rods 23 is located at a quarter of the connecting rods 23 from top to bottom, the height of the connecting rods 23 is twice of the depth of the engaging groove 21, the lower end of the connecting rods 23 is designed to be an arc-shaped structure, and the connecting rods 23 are made of a ductile metal material.

By adopting the technical scheme, when in work, because the hinged position of the two groups of connecting rods 23 is one fourth of the connecting rods 23, when the user changes the distance between the upper ends of the links 23, the amount of displacement of the lower ends of the links 23 will be greater than the amount of displacement of the upper ends of the links 23, in order to remove the links 23 in the subsequent step, by pinching both links 23 in opposite directions, and by pivoting the hinge, namely, the lower ends are relatively displaced to force the clamping block 22 to be separated from the clamping groove 24, the connecting rods 23 are made of elastic metal materials, a user inserts the two groups of connecting rods 23 into the clamping groove 21 to force the arc area at the lower end of the connecting rod 23 to be contacted with the conducting wire, when the connecting rod 23 continuously receives the pressing force of the user, the lower end of the connecting rod 23 is forced to be bent, thereby through the elasticity that connecting rod 23 produced and be semiannular parcel in the wire surface, carry out further clamp to fix the wire, improve and press from both sides tight effect.

As an embodiment of the present invention, as shown in fig. 2 and 4, the outer surface of the rear end of the aluminum tube 1 is fixedly connected to the rear end of the rubber sleeve 12, the annular outer surface of the front end of the copper tube 11 is fixedly connected to a magnet 123, a metal sheet 124 is disposed at a position of the rubber sleeve 12 corresponding to the magnet 123, the metal sheet 124 and the magnet 123 are magnetically adsorbed, the front end of the rubber sleeve 12 is fixedly connected to a rubber band 125, the rubber sleeve 12 covers the copper tube 11 and the aluminum tube 1, the aluminum tube 1 and the copper tube 11 are provided with a vent hole 13 through the inside thereof, and heat dissipation fins 131 are fixedly connected to the inside thereof, the heat dissipation fins 131 are distributed in a staggered manner, and the magnet 123 is located at the edge of the vent hole 13.

By adopting the technical scheme, in order to increase the waterproof effect of the joint, in operation, a user pulls the rubber sleeve 12 to the outer surface of the front end of the copper pipe 11 from the rear end of the aluminum pipe 1, the rubber sleeve is tightened through the front end opening of the rubber band 125, the copper pipe 11 is completely wrapped, the copper pipe 11 is protected, meanwhile, the magnet 123 at the front end of the copper pipe 11 is magnetically adsorbed with the metal sheet 124 of the rubber sleeve 12, the rubber sleeve 12 is provided with the hole at the position corresponding to the ventilation hole 13, the cooling fins 131 are arranged inside the ventilation hole 13 to perform cold and heat exchange on heat generated by the copper pipe 11 and the aluminum pipe 1 and external air through the hole, the area of the air cold and heat exchange can be increased through the design of the cooling fins 131, the heat on the surface of the cooling fins 131 is taken away, so that the heat dissipation effect of the joint is improved, and the inner surface of the ventilation hole 13 is plated with beryllium oxide.

As an embodiment of the present invention, as shown in fig. 2, an expansion bag 121 is fixedly connected to an outer surface of the rubber sleeve 12, the expansion bag 121 is integrally distributed along the outer surface of the rubber sleeve 12 in a screw thread shape, a longitudinal section of the expansion bag 121 is designed to be an elliptical structure, an end surface of a major axis thereof is in contact with the rubber sleeve 12, and a water filling port 122 is fixedly connected to a rear end of the expansion bag 121.

By adopting the technical scheme, in order to further improve the heat dissipation effect, when in work, a user injects cooling liquid into the expansion bag 121 through the water injection port 122 to ensure that the expansion bag 121 with the oval design expands to be round, thereby shortening the long axis of the expansion capsule 121 and enabling the short axis to be long, tightening the rubber sleeve 12 to wrap the joint surface, so that the rubber sleeve 12 and the joint are integrally tightened and fixed by the expansion bag 121 in the water injection expansion state, and generates an external force for continuously extruding the connecting rod 23 through the rubber sleeve 12, so as to improve the clamping effect of the connecting rod 23 and the clamping groove 21, when the connecting rod 23 is completely inserted, the exposed length of the upper end is about 0.5cm, the connecting rod 23 is prevented from puncturing the rubber sleeve 12, simultaneously through the inside coolant liquid absorption of inflation bag 121 connect the heat that gives off, water filling port 122 upper end is provided with the rubber buffer and facilitates the user and pours into the coolant liquid into, increase radiating effect that can step forward through above-mentioned technical scheme.

As an embodiment of the present invention, as shown in fig. 2 and 6, a locking assembly 3 is disposed on an outer surface of a front end of the copper tube 11, the locking assembly 3 includes a threaded groove 14, a locking sleeve 31, a resisting rod 32, and an insert plate 33, the locking sleeve 31 is screwed inside the threaded groove 14, the cable 4 penetrates through the locking sleeve 31, an inner wall of the locking sleeve 31 is designed in an inclined structure, the resisting rod 32 is fixedly connected to a position of the outer surface of the front end of the copper tube 11 close to an inner side of the threaded groove 14, a front end of the resisting rod 32 is designed in an inclined structure, an angle of the front end of the resisting rod is parallel to an inner wall of the locking sleeve 31, one side of the resisting rod 32 close to the cable 4 is fixedly connected to the insert plate 33, a vertical angle is formed between the insert plate 33 and the resisting rod 32, a sealing ring 38 is disposed between the insert plate 33 and the resisting rod 32, and an annular outer surface of the locking sleeve 31 is fixedly connected to a pressing plate 311.

By adopting the technical scheme, in order to improve the sealing effect of the contact between the cable 4 and the copper pipe 11, in operation, a user rotates the locking sleeve 31 to enable the locking sleeve 31 to move backwards along the thread groove 14, at the moment, the pressing plate 311 fixedly connected with the annular outer surface of the locking sleeve 31 can resist the rubber sleeve 12, the fastening effect of the rubber sleeve 12 and the copper pipe 11 is increased, meanwhile, when the locking sleeve 31 moves backwards, the inclined surface can be in contact with the inclined surface of the resisting rod 32, the resisting rod 32 is forced to bend towards the cable 4, the resisting rod 32 can extrude the sealing ring 38 sleeved on the annular outer surface of the cable 4, the sealing effect of the cable and the joint 4 is improved, rainwater is prevented from entering, meanwhile, the resisting rod 32 drives the inserting plate 33 to engage with the annular outer surface of the cable 4, and the fastening effect of the cable 4 and the joint is improved.

As an embodiment of the present invention, as shown in fig. 6, the locking assembly 3 further includes a spring 34, a locking plate 35, a groove 36, a protrusion 351, and a pressing bag 37, one side of the resisting rod 32 near the cable 4 is fixedly connected to one end of the spring 34, the other end of the spring 34 is fixedly connected to the locking plate 35, the locking plate 35 is designed to be a triangular structure, a plurality of sets of protrusions 351 are fixedly connected to the outer surface of the lower end of the locking plate 35, the groove 36 is formed on the annular outer surface of the cable 4, the groove 36 and the protrusion 351 are correspondingly matched, and the cavity 15 is fixedly connected to the pressing bag 37 at a position corresponding to the locking plate 35.

Through adopting above-mentioned technical scheme, in order to further improve the fixed effect of cable 4 and joint, in operation, based on above-mentioned embodiment, when resisting pole 32 downwarping, shell fragment 34 drives locking plate 35 and moves to the clearance department between cavity 15 and the cable 4, locking plate 35 passes through protruding 351 card and goes into inside 36 increase the frictional force between locking plate 35 and the cable 4, locking plate 35 is that hard rubber takes place to deform in clearance department after receiving the extrusion of resisting pole 32, thereby improve the fixed effect of cable 4 and joint, locking plate 35 moves and extrudes the extrusion bag 37 to the direction of keeping away from locking sleeve 31 along the clearance, force extrusion bag 37 to take place to expand and closely laminate the cavity 15 inner wall thereby further improve the sealed of cable 4 and joint and prevent that the rainwater from getting into and connect inside and cause the short circuit.

The working principle is as follows: the user aligns two groups of connecting rods 23 with the clamping groove 21, then presses the connecting rods 23 downwards along the clamping groove 21, at this time, the fixture 22 firstly contacts with the clamping groove 21, and under the action of continuous pressing force provided by the user, the two groups of connecting rods 23 turn over around the hinged part as a pivot and extrude the spring 25, at this time, the fixture 22 moves along the clamping groove 21 until the fixture 22 is clamped into the clamping groove 24, and continuously receives elastic force transmitted by the spring 25 through the connecting rods 23, and extrudes the connecting rods 23 through compressing the spring 25 in the opposite direction, the clamping grooves 24 are in a plurality of groups, after the fixture 22 is completely clamped into the clamping groove 24, the lower ends of the connecting rods 23 abut against the wires, so that the wires are fixed, when the wires need to be dismounted by the user, the upper ends of the connecting rods 23 are pinched by fingers, so that the gap between the connecting rods 23 at the upper ends of the connecting rods 23 is reduced, and further the gap between the connecting rods 23 when the fixture 22 is inserted into the clamping groove 21 is small, the fixture block 22 is forced to be separated from the limitation of the clamping groove 24, and finally the connecting rod 23 is taken out, by the technical scheme, the fixing effect and the installation efficiency of the wire can be effectively improved under the condition of no corresponding tool, because the hinged position of the two groups of connecting rods 23 is one fourth of the position of the connecting rod 23, when a user changes the distance between the upper ends of the connecting rods 23, the displacement amount of the lower end of the connecting rod 23 is larger than the displacement amount of the upper end of the connecting rod 23, so that when the connecting rod 23 is subsequently disassembled, the lower end can be relatively displaced by pinching the two connecting rods 23 in the opposite direction and rotating through the hinged position, the fixture block 22 is forced to be separated from the clamping groove 24, the connecting rod 23 is made of an elastic metal material, the user inserts the two groups of connecting rods 23 into the clamping groove 21, the arc area at the lower end of the connecting rod 23 is forced to be contacted with the wire, and the lower end of the connecting rod 23 is forced to be bent when continuously pressed by the user, thereby through the elasticity that connecting rod 23 produced and be the semicircular parcel in the wire surface, carry out further clamp to fix the wire, improve and press from both sides tight effect, the user draws rubber sleeve 12 to copper pipe 11 front end surface from aluminum pipe 1 rear end, and tighten through rubber band 125 front end opening, and copper pipe 11 is complete to be wrapped up, realize the protection to copper pipe 11, magnet 123 and the sheetmetal 124 of rubber sleeve 12 of copper pipe 11 front end carry out magnetic force and adsorb simultaneously, rubber sleeve 12 sets up the hole with ventilation hole 13 corresponding position, and be provided with inside ventilation hole 13 that fin 131 carries out the heat and cold exchange through the hole to the heat that copper pipe 11 and aluminum pipe 1 produced and outside air, the design of fin 131 can increase the area of air heat and cold exchange and take away the heat on fin 131 surface, thereby improve the radiating effect of this joint, ventilation hole 13 internal surface has plated beryllium oxide, the user makes the inside water filling port 122 injection coolant liquid of inflation bag 121 make the inflation bag of oval design pass through water filling port 122 into The expansion is changed into a circle, so that the major axis of the expansion bag 121 is shortened, the minor axis is long, the rubber sleeve 12 can be tensioned to be wrapped on the surface of the joint, the rubber sleeve 12 and the joint are integrally tightened and fixed through the expansion bag 121 in a water injection expansion state, an external force for continuously extruding the connecting rod 23 is generated through the rubber sleeve 12, the clamping effect of the connecting rod 23 and the clamping groove 21 is improved, when the connecting rod 23 is completely inserted, the exposed length of the upper end is about 0.5cm, the connecting rod 23 is prevented from puncturing the rubber sleeve 12, the rubber sleeve is sleeved at the upper end of the connecting rod 23, meanwhile, heat emitted by the joint is absorbed through cooling liquid in the expansion bag 121, a rubber plug is arranged at the upper end of the water injection port 122, a cooling liquid is conveniently injected by a user, through the technical scheme, the heat dissipation effect can be further improved, the user rotates the locking sleeve 31 to enable the locking sleeve to move backwards along the thread groove 14, at the moment, the pressing plate 311 fixedly connected with the annular outer surface of the locking sleeve 31 can resist the rubber sleeve 12, increasing the fastening effect of the rubber sleeve 12 and the copper tube 11, and when the locking sleeve 31 moves backwards, the inclined surface will contact with the inclined surface of the resisting rod 32, and force the resisting rod 32 to bend towards the cable 4, so that the resisting rod 32 presses the sealing ring 38 sleeved on the annular outer surface of the cable 4, thereby improving the sealing effect of the cable and 4 joint against rainwater, and simultaneously, the resisting rod 32 drives the inserting plate 33 to engage with the annular outer surface of the cable 4, thereby improving the fastening effect of the cable 4 and the joint, based on the above embodiment, when the resisting rod 32 bends downwards, the elastic sheet 34 drives the locking plate 35 to move towards the gap between the cavity 15 and the cable 4, the locking plate 35 is clamped into the groove 36 through the protrusion 351 to increase the friction force between the locking plate 35 and the cable 4, the locking plate 35 is made of hard rubber, and deforms at the gap after being pressed by the resisting rod 32, thereby improve the fixed effect of cable 4 and joint, when locking plate 35 moved and extrudeed extrusion bag 37 to the direction of keeping away from locking sleeve 31 along the clearance, force extrusion bag 37 to take place the inflation and closely laminate the cavity 15 inner wall thereby further improve cable 4 and the sealed short circuit that prevents that rainwater from getting into to connect the inside.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.