CN108832376B

CN108832376B - Rainproof cable connecting device

Info

Publication number: CN108832376B
Application number: CN201810703332.4A
Authority: CN
Inventors: 严大虎; 王均霞; 陈思涛
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2018-06-30
Filing date: 2018-06-30
Publication date: 2020-09-08
Anticipated expiration: 2038-06-30
Also published as: CN108832376A

Abstract

The invention discloses a rainproof cable connecting device, which comprises a shell, wherein the interior of the shell penetrates through the front and the back, and is provided with a first storage space; and the inner sleeve assembly comprises a shell outer sliding block, the shell outer sliding block is matched with the shell inner groove, and the inner sleeve assembly is clamped in the shell. When the device is used for large-scale machinery, the circuit on the machinery can be conveniently transported and disassembled.

Description

Rainproof cable connecting device

Technical Field

The invention relates to the technical field of electronics, in particular to a rainproof cable connecting device.

Background

The following methods are currently commonly used when dealing with connections between two or more individual wires: first, an insulating protective layer of an electric wire is peeled off, a core of the electric wire is exposed and connected, and the connected core is wound with an insulating tape. However, in the above method using the insulating tape, a tool for peeling off the insulating protective layer and winding the electric wire core is required. Moreover, the connecting operation is complicated and troublesome.

Second, the insulation of the wire is stripped off, and the wire core is then clamped to the conductor in the connector, typically by screws. However, such a connection method also requires a tool for peeling off the insulation protection layer, and the operation is troublesome and complicated, and if the environment for connecting the wires is complicated, the screws are easily loosened by a certain vibration, which affects the conductive effect.

Thirdly, the rubber coating cloth after welding, because the unilateral line diameter of the connection nail of every electric wire is thin excessively, and the welding department is comparatively fragile, breaks off easily or the short circuit, and adhesive tape parcel department is often not tight, and waterproof performance is poor, produces to leak and easily arouses signal interference scheduling problem, all can arouse the pencil return circuit to open circuit or the short circuit to arouse quality safety risk.

Such connection methods cannot retain water, and when the line is applied to a large machine, the line still needs to be cut off, and the originally disconnected place cannot be reused, so that the transportation of the apparatus with the electric wire is inconvenient.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made keeping in mind the above and/or other problems occurring in the prior art.

Therefore, one of the objectives of the present invention is to provide a rainproof cable connection device, which can achieve a sealing effect when the connection between the wires is achieved.

In order to solve the technical problems, the invention provides the following technical scheme: a rainproof cable connecting device comprises a shell, a first storage space and a second storage space, wherein the interior of the shell penetrates through the front and the back of the shell, a shell inner groove is formed in the first storage space, and an inner sleeve assembly is embedded in the shell inner groove; and the inner sleeve assembly comprises a shell outer sliding block, the shell outer sliding block is matched with the shell inner groove, and the inner sleeve assembly is clamped in the shell.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: the inner sleeve component is divided into a front end and a rear end, and the width of the cross section of the inner sleeve component is reduced from the rear end to the front end in a Z shape.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: the front end is equipped with the chucking spare, the chucking spare is connected with external part.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: the clamping piece is divided into an upper locking buckle and a lower locking buckle, the upper locking buckle is arranged at the end part of the front end, the lower locking buckle is arranged from the front end to the extending direction of the rear end, and the inner side of the upper locking buckle is arranged.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: the inner sleeve assembly further comprises an installation shell and a power-on piece, the power-on piece is arranged on the lower bottom surface of the interior of the installation shell, and the relative position between the installation shell and the power-on piece is locked through a fixed connecting piece.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: the mounting shell is a hollow shell and penetrates through the mounting shell from front to back.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: still include, the cable with the circular telegram is connected.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: first electric wire and second electric wire are distinguished to the cable, first electric wire and second electric wire pass through the gomphosis subassembly and connect, the gomphosis subassembly includes locating component and locking Assembly, locating component screws through locking Assembly.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: the locating component is divided into a first box body and a second box body, the first box body and the second box body are matched with each other, the first box body comprises a hollow groove, a first electric wire is inserted into one end of the first box body, a second electric wire is inserted into the other end of the first box body, and a pressing block is placed in the hollow groove.

As a preferable aspect of the rain-proof cable connection device of the present invention, wherein: the locking assembly is divided into an upper rotating part and a lower rotating part, the upper rotating part and the lower rotating part are all sleeved on the outer side of the positioning assembly, are screwed in a threaded fit mode and are extruded by the pressing block, and therefore the first electric wire and the second electric wire are closely close to each other at the joint in the hollow groove.

The invention has the beneficial effects that: when the device is used for large-scale machinery, the circuit on the machinery can be conveniently transported and disassembled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

FIG. 1 is a schematic view of an entire structure of a rainproof cable connection device with a cable according to an embodiment of the invention;

FIG. 2 is a schematic view of the entire structure of the rainproof cable connection device without a cable according to one embodiment of the invention;

FIG. 3 is a schematic diagram of the overall structure of the inner sleeve assembly of the rainproof cable connection device in one embodiment of the invention;

FIG. 4 is a schematic view of the entire structure of the engaging member of the rain-proof cable connecting device according to an embodiment of the present invention;

FIG. 5 is a schematic view of the entire structure of the upper half of the case of the rain-proof cable connection device according to an embodiment of the present invention;

FIG. 6 is a schematic view of the overall configuration of the alignment sleeve of the rain-proof cable connection device in one embodiment of the present invention;

FIG. 7 is a schematic view showing the overall structure of the guide member of the rain-proof cable connection device in an embodiment of the present invention;

fig. 8 is a schematic overall structure diagram of the pressing block of the rainproof cable connection device in one embodiment of the invention;

FIG. 9 is a schematic view of the overall structure of the lower half of the rain-proof cable connection device according to an embodiment of the present invention;

fig. 10 is a partial structural view of the assembled engaging member of the rain-proof cable connecting device according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Referring to fig. 1 to 3, a first embodiment of the rainproof cable connection device of the present invention is provided, in which a main body of the device includes a housing 100 and an inner sleeve assembly 200, the inner sleeve assembly 200 is sleeved in the housing 100, one end of the device is connected to an external device, and the other end is connected to a cable R.

Specifically, the interior of the casing 100 penetrates forward and backward, the casing 100 is provided with a first storage space 101, a casing inner groove 101a is formed in the first storage space 101, and the inner sleeve assembly 200 is embedded in the casing inner groove 101 a.

The inner sleeve assembly 200 comprises a shell outer sliding block 201, the shell outer sliding block 201 is matched with the shell inner groove 101a, the inner sleeve assembly 200 is clamped in the shell 100, and the shell outer sliding block 201 and the shell inner groove 101a play a role in guiding in a sliding direction.

In this embodiment, the inner sleeve assembly 200 is divided into a front end 300 and a rear end 400, and the cross section of the inner sleeve assembly 200 decreases in width from the rear end 400 to the front end 300 in a "Z" shape, and has a cross section similar to the cross section of a general beer bottle.

The front end 300 is provided with a clamping member 202, and the clamping member 202 is connected with an external component. The retainer 202 is divided into an upper locking hook 202a and a lower locking hook 202b, the upper locking hook 202a is provided at an end of the front end 300, and the lower locking hook 202b is provided inside the upper locking hook 202a in a direction extending from the front end 300 to the rear end 400.

The relative directions of "upper" and "lower" in the "upper locking buckle 202a and the lower locking buckle 202 b" are: perpendicular to the direction from the rear end 400 to the front end 300, i.e. the difference in height.

The inner housing assembly 200 further includes a mounting case 203 and a power-on member 204, and the power-on member 204 is disposed at a lower bottom surface of an inside of the mounting case 203 and locks a relative position between the mounting case 203 and the power-on member 204 by a fixing link 205. The "fixed connection 205" may be a bolt connection or a screw connection.

In order to achieve the effect that the inner sleeve assembly 200 can dissipate heat, the mounting shell 203 is preferably a hollow shell, which penetrates forward and backward, when in connection, one end of the device is connected with the cable R, the other end of the device is connected with the external device, the external device is positioned and clamped when in connection with the device through the upper locking buckle 202a and the lower locking buckle 202b in the clamping piece 202, and electricity is transmitted to the cable R through the electrifying piece 204.

It should be noted that in the present embodiment, the number of the first storage space 101 and the inner sleeve assembly 200 is greater than or equal to 1, and the number is the same, and is not limited to the number expressed in the drawings.

Referring to fig. 4 to 10, a second embodiment of the rainproof cable connection device of the present invention is provided, which is different from the first embodiment: the embodiment further comprises a jogging assembly 500, the cable R is divided into a first electric wire L1 and a second electric wire L2, the first electric wire L1 and the second electric wire L2 are connected through the jogging assembly 500, the jogging assembly 500 comprises a positioning assembly 501 and a locking assembly 502, and the positioning assembly 501 is screwed through the locking assembly 502.

Specifically, the fitting assembly 500 includes a positioning assembly 501 and a locking assembly 502, and the first electric wire L1 and the second electric wire L2 pass through both ends of the positioning assembly 501, and the connecting ends of the first electric wire L1 and the second electric wire L2 in the positioning assembly 501 are pressed by the locking assembly 502, so that the two electric wires are closely connected.

The locating component 501 is divided into an upper half box body A and a lower half box body B, the upper half box body A and the lower half box body B are matched with each other, and the upper half box body A and the lower half box body B of the locating component 501 are limited through mutual connection between the locking components 502.

Preferably, a guide protrusion C-1 is arranged at the joint between the upper box body a and the lower box body B, a guide groove C-2 is arranged in the locking assembly 502, and the guide protrusion C-1 and the guide groove C-2 are matched with each other, so that the positioning assembly 501 and the locking assembly 502 cannot rotate relatively during assembly.

In the present application, the upper half box body a and the lower half box body B are symmetrically arranged, and the internal structures thereof are similar, and the internal structure thereof will be specifically described below by taking the upper half box body a as an example.

The upper half box body a includes hollow grooves 501a (it should be noted that, the number of the hollow grooves 501a is greater than or equal to 1, in order to avoid misunderstanding, in this application, two hollow grooves 501a are taken as an example and specifically described), the first electric wire L1 is inserted from one end of the upper half box body a of the upper half box body 501, the connection part with the second electric wire L2 is placed in the hollow groove 501a, the second electric wire L2 is inserted from the other end of the upper half box body a of the upper half box body 501, the connection part with the first electric wire L1 is placed in the hollow groove 501a, the hollow groove 501a is inserted from the outside of the upper half box body a to place the pressing block 501c, and the pressing block 501c presses the connection interface of the first electric wire L1 and the second electric wire L2 through the hollow grooves 501a, so that the connection ends of the first electric wire L1 and the second electric wire L2 are. The structure of the lower box body B is similar to that of the upper box body A, and the description is omitted.

The locking assembly 502 is divided into an upper rotating member 502a and a lower rotating member 502b, the upper rotating member 502a and the lower rotating member 502b are sleeved on the outer side of the positioning assembly 501, and are screwed by screw-fitting, and press the pressing block 501c, so that the first electric wire L1 and the second electric wire L2 are tightly close to each other at the joints in the hollow 501a of the positioning assembly 501.

Referring to fig. 4 to 10, a third embodiment of the rainproof cable connecting device of the present invention is provided, which is different from the second embodiment in that: the positioning assembly 501 also includes a guide 501 d.

The guide 501d is disposed in the limiting groove 501e, the guide 501d includes a connecting block 501d-1, a stabilizing block 501d-2, and a C-shaped elastic ring 501d-3, the C-shaped elastic ring 501d-3 is connected to one end of the stabilizing block 501d-2, and the other end of the stabilizing block 501d-2 is connected to the connecting block 501 d-1501.

The limiting groove 501e comprises a first retaining groove 501e-1 and a second retaining groove 501e-2, a through hole 501e-3 is formed in the junction of the first retaining groove 501e-1 and the second retaining groove 501e-2, a connecting block 501d-1 and a stabilizing block 501d-2 are placed in the first retaining groove 501e-1, and a C-shaped elastic ring 501d-3 is placed in the second retaining groove 501 e-2.

The C-shaped elastic ring 501d-3 comprises elastic pieces 501d-31 and C-shaped blocks 501d-32, and the elastic pieces 501d-31 are connected with the C-shaped blocks 501 d-32. When the guide 501d is placed, preferably, the stabilizing block 501d-2 is first placed in the first retaining groove 501e-1, the C-shaped elastic ring 501d-3 is placed in the second retaining groove 501e-2, and is inserted into the stabilizing block 501d-2 through the C-shaped block 501d-32 (it should be noted that two positioning holes are provided on two opposite surfaces of the stabilizing block 501d-2, one is on one side, and the connecting block 501d-1 is inserted into the surface provided with one positioning hole), and then the connecting block 501d-1 is inserted into the stabilizing block 501d-2 from the side surface of the first stopper groove 501e-1 (it should be noted that two positioning holes are provided on two opposite surfaces of the stabilizing block 501d-2, one is on one side, and the other is one, and the connecting block 501d-1 is inserted into the surface provided with two positioning holes).

When the upper rotating piece 502a and the lower rotating piece 502b are screwed in a threaded fit manner and squeeze the pressing block 501c, so that the pressing block 501c is pressed down through the hollow groove 501a, it should be noted that one end of the pressing block 501c is composed of a plurality of damping blocks with "M" shaped cross sections, one surface of the "V" shape faces downwards, the middle part of the pressing block is recessed, and the side surface of the pressing block 501c is exactly aligned with the position where the first electric wire L1 or the second electric wire L2 is placed, and the inclined surface 501c-1 is arranged on the side surface of the pressing block 501c, where the inclined surface 501c-1 functions as: so that the pressing block 501c can be pressed down slowly, the area of the pressing block 501c contacted by the hollow groove 501a becomes larger and larger, and the pressing block 501c can be sunk into the hollow groove 501a and press the first electric wire L1 or the second electric wire L2 while not colliding with the hollow groove 501 a. Therefore, the pressing block 501c can push the connecting block 501d-1 to move backwards in the pressing process, the wavy contour formed by pressing and bending the elastic pieces 501d-31 is more obvious indirectly, the elastic pieces 501d-31 are pressed into a pressing shape, and the first electric wire L1 or the second electric wire L2 pressed by the elastic pieces 501d-31 are pressed more compactly, so that the situation that water seepage occurs on the outer side of the first embedding assembly 400 through the sensing of the monitoring unit Q when the electric wires are connected is ensured, and the function of preventing water seepage is realized.

Referring to fig. 1 to 10, a fourth embodiment of the rainproof cable connection device of the present invention is provided, which is different from the third embodiment in that: the positioning assembly 501 further comprises a pressing plate 501i, the cross section of the pressing plate 501i is "C" shaped, and is disposed in the hollow groove 501a, and the arched portion of the pressing plate 501i faces toward the center of the hollow groove 501 a.

Specifically, the main body includes a housing 100, an inner housing assembly 200 and a cable R, the cable R is divided into a first electric wire L1 and a second electric wire L2, and the first electric wire L1 or the second electric wire L2 are connected to a machine through a fitting assembly 500, when the machine is to be disassembled, the first electric wire L1 or the second electric wire L2 connected to the machine are disconnected by disassembling the fitting assembly 500, and meanwhile, the function of convenient transportation can be realized, the cable R is connected to another wire after transportation, and when the large machine is disassembled to be transported through the fitting assembly 500, the problem of electric wire connection is not considered.

The interior of the housing 100 penetrates forward and backward, the housing 100 is provided with a first storage space 101, a housing inner groove 101a is formed in the first storage space 101, and the inner sleeve assembly 200 is embedded in the housing inner groove 101 a.

Referring to fig. 4 to 10, the cable R is divided into a first electric wire L1 and a second electric wire L2, and the first electric wire L1 and the second electric wire L2 are connected by a fitting assembly 500, the fitting assembly 500 includes a positioning assembly 501 and a locking assembly 502, the first electric wire L1 and the second electric wire L2 penetrate through two ends of the positioning assembly 501, and the locking assembly 502 tightly presses the connecting ends of the first electric wire L1 and the second electric wire L2 in the positioning assembly 501, so that the two electric wires are tightly connected.

Preferably, a guide protrusion C-1 is arranged at the joint between the upper box body a and the lower box body B, a guide groove C-2 is arranged in the locking assembly 502, and the guide protrusion C-1 and the guide groove C-2 are matched with each other, so that the positioning assembly 501 and the locking assembly 502 cannot rotate relatively during assembly. In the present application, the upper half box body a and the lower half box body B are symmetrically arranged, and the internal structures thereof are similar, and the internal structure thereof will be specifically described below by taking the upper half box body a as an example.

The upper half box body A comprises a hollow groove 501a, a first wire L1 is inserted from one end of the upper half box body A, the joint of the first wire L1 and a second wire L2 is arranged in the hollow groove 501a, a second wire L2 is inserted from the other end of the upper half box body A, the joint of the first wire L1 and the hollow groove 501a is arranged in the hollow groove 501a, the hollow groove 501a is inserted from the outer side of the upper half box body A to the inner side to place a pressing block 501c, and the pressing block 501c presses the connected joints of the first wire L1 and the second wire L2 through the hollow groove 501a, so that the connecting ends of the first wire L1 and the second wire L2 are fully connected. The structure of the lower box body B is similar to that of the upper box body A, and the description is omitted.

The locking assembly 502 is divided into an upper rotating member 502a and a lower rotating member 502b, the upper rotating member 502a and the lower rotating member 502b are sleeved on the outer side of the positioning assembly 501, and are screwed by screw-fitting, and press the pressing block 501c, so that the first electric wire L1 and the second electric wire L2 are tightly close to each other at the joint inside the hollow groove 501 a.

The guide 501d is disposed in the limiting groove 501e, the guide 501d includes a connecting block 501d-1, a stabilizing block 501d-2, and a C-shaped elastic ring 501d-3, the C-shaped elastic ring 501d-3 is connected to one end of the stabilizing block 501d-2, and the other end of the stabilizing block 501d-2 is connected to the connecting block 501 d-1.

When the upper rotating piece 502a and the lower rotating piece 502b are screwed in a threaded fit manner and squeeze the pressing block 501c, so that the pressing block 501c is pressed down through the hollow groove 501a, it should be noted that one end of the pressing block 501c is composed of a plurality of damping blocks with "M" shaped cross sections, one surface of the "V" shape faces downwards, the middle part of the pressing block is recessed, and the side surface of the pressing block 501c is exactly aligned with the position where the first electric wire L1 or the second electric wire L2 is placed, and the inclined surface 501c-1 is arranged on the side surface of the pressing block 501c, where the inclined surface 501c-1 functions as: so that the pressing block 501c can be pressed down slowly, the area of the pressing block 501c contacted by the hollow groove 501a becomes larger and larger, and the pressing block 501c can be sunk into the hollow groove 501a and press the first electric wire L1 or the second electric wire L2 while not colliding with the hollow groove 501 a. Therefore, the pressing block 501c can push the connecting block 501d-1 to move backwards in the pressing process, the wavy contour formed by pressing and bending the elastic sheets 501d-31 becomes more obvious indirectly, and the first electric wire L1 or the second electric wire L2 which can be pressed by the elastic sheets 501d-31 is pressed to be more compact by the pressing of the elastic sheets 501d-31, so that the function of preventing water seepage is realized when the electric wires are connected.

The positioning assembly 501 further comprises a pressing plate 501i, the cross section of the pressing plate 501i is "C" shaped, and is disposed in the hollow groove 501a, and the arched portion of the pressing plate 501i faces toward the center of the hollow groove 501 a. The meaning of providing the pressing plate 501i here is: the accommodation space of the hollow groove 501a is restricted by the pressing plate 501i, so that the first electric wire L1 or the second electric wire L2, which is put in, is pressed inside the hollow groove 501 a.

It should be noted that both sides of the pressing plate 501i are limited by the outer wall of the second retaining groove 501e-2, so that the position of the pressing plate 501i is fixed.

Preferably, the positioning assembly 501 further comprises a positioning ring 501f, the positioning ring 501f is disposed in the positioning groove 501g on the end surface of the upper half box a of the positioning assembly 501, and the first wire L1 passes through the positioning ring 501f and the second retaining groove 501e-2 and is disposed in the hollow groove 501 a.

It should be noted that the lower half box B is provided with a snap groove 501h corresponding to the positioning groove 501g, the snap groove 501h is recessed inward, and the depth of the recess is greater than or equal to the height of the positioning ring 501f protruding from the end surface of the upper half box a, when the lower half box B is matched with the upper half box a, the positioning ring 501f is matched with the snap groove 501 h.

Preferably, the upper rotating member 502a includes a rotating sleeve 502a-1 and an alignment sleeve 502a-2, the rotating sleeve 502a-1 is disposed outside the alignment sleeve 502a-2, the alignment sleeve 502a-2 corresponds to the lower rotating member 502b, and the rotating sleeve 502a-1 and the lower rotating member 502b are engaged by threads to tightly clamp the upper rotating member 502a and the lower rotating member 502 b.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a rain-proof cable connecting device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the inner sleeve assembly comprises a shell (100), a first storage space (101) and a second storage space, wherein the shell (100) penetrates through the front and the back of the interior of the shell, a shell inner groove (101a) is formed in the first storage space (101), and an inner sleeve assembly (200) is embedded in the shell inner groove (101 a); and the number of the first and second groups,

the inner sleeve assembly (200) comprises a shell outer sliding block (201), the shell outer sliding block (201) is matched with the shell inner groove (101a), the inner sleeve assembly (200) is clamped in the shell (100), the inner sleeve assembly (200) is divided into a front end (300) and a rear end (400), the width of the cross section of the inner sleeve assembly (200) is reduced from the rear end (400) to the front end (300) in a Z shape, a clamping piece (202) is arranged at the front end (300), and the clamping piece (202) is connected with an outer connecting piece;

still include, cable (R), first electric wire (L1) and second electric wire (L2) are distinguished into to cable (R), first electric wire (L1) and second electric wire (L2) are connected through gomphosis subassembly (500), gomphosis subassembly (500) are including locating component (501) and locking Assembly (502), locating component (501) are screwed through locking Assembly (502), locating component (501) are distinguished into first box body (A) and second box body (B), first box body (A) and second box body (B) mutually support, first box body (A) includes cavity groove (501a), first electric wire (L1) are from the one end of first box body (A) is inserted, second electric wire (L2) are from the other end of first box body (A) is inserted, place compact heap (501c) in cavity groove (501a), locking Assembly (502) is distinguished into last rotating member (502a) and lower rotating member (502B), the upper rotating piece (502a) and the lower rotating piece (502b) are sleeved outside the positioning assembly (501) and screwed through thread fit, and the pressing block (501c) is pressed, so that the first electric wire (L1) and the second electric wire (L2) are closely adjacent at the joint in the hollow groove (501 a);

the positioning assembly (501) further comprises a guide piece (501d) and a limiting groove (501e), the guide piece (501d) is arranged in the limiting groove (501e), the guide piece (501d) comprises a connecting block (501d-1), a stabilizing block (501d-2) and a C-shaped elastic ring (501d-3), the C-shaped elastic ring (501d-3) is connected with one end of the stabilizing block (501d-2), the other end of the stabilizing block (501d-2) is connected with the connecting block (501d-1), the limiting groove (501e) comprises a first retaining groove (501e-1) and a second retaining groove (501e-2), a penetrating hole (501e-3) is formed in the junction of the first retaining groove (501e-1) and the second retaining groove (501e-2), a connecting block (501d-1) and a stabilizing block (501d-2) are placed in the first retaining groove (501e-1), and a C-shaped elastic ring (501d-3) is placed in the second retaining groove (501 e-2);

the C-shaped elastic ring (501d-3) comprises elastic pieces (501d-31) and C-shaped blocks (501d-32), and the elastic pieces (501d-31) are connected with the C-shaped blocks (501 d-32);

the positioning assembly (501) further comprises a pressing plate (501i), the cross section of the pressing plate (501i) is C-shaped and is arranged in the hollow groove (501a), and the direction of the arched part of the pressing plate (501i) is towards the center direction of the hollow groove (501 a).

2. A rain-proof cable connection device as claimed in claim 1, wherein: the clamping piece (202) is divided into an upper locking buckle (202a) and a lower locking buckle (202b), the upper locking buckle (202a) is arranged at the end part of the front end (300), and the lower locking buckle (202b) is arranged on the inner side of the upper locking buckle (202a) in the extending direction of the front end (300) and the rear end (400).

3. A rain-proof cable connection device as claimed in claim 1, wherein: the inner sleeve assembly (200) further comprises an installation shell (203) and an electrifying piece (204), the electrifying piece (204) is arranged on the lower bottom surface of the interior of the installation shell (203), the installation shell (203) and the electrifying piece (204) are locked at the relative positions through a fixed connecting piece (205), and the installation shell (203) is a hollow shell and penetrates through the front and the back.

4. A rain-proof cable connection device as claimed in claim 3, wherein: the cable (R) is connected to the power-on member (204).