阅读说明：本技术 电缆的安全连接装置 (Safety connecting device for cable ) 是由 魏常昱 于 2019-10-31 设计创作，主要内容包括：一种电缆的安全连接装置,包括连接第一电缆和第二电缆的导电连接块,导电连接块包括第一电连块、第二电连块和第三电连块,所述第一电连块和第三电连块铰接在第二电连块两侧,第一电连块、第二电连块和第三电连块拼接形成连接口,第一电连块与第三电连块通过压紧螺母锁紧,采用三层密封连接结构,其中导电连接块用于保护和连接第一电缆和第二电缆的铜芯,将铜芯压紧,能够有很好的连接效果,且结构简单,在导电连接块外部套设密封锁紧块,连接外壳能够将第一电缆和第二电缆进行很好的连接。(The utility model provides a safe connecting device of cable, is including the electrically conductive connecting block of connecting first cable and second cable, and electrically conductive connecting block includes that first electricity links piece, the even piece of second electricity and the even piece of third electricity, even piece of first electricity links the piece and articulates in the even piece both sides of second electricity with the even piece of third electricity, and even piece of first electricity, the even piece of second electricity and the even piece concatenation of third electricity form the connector, and even piece of first electricity and the even piece of third electricity are locked through gland nut, adopt three-layer sealing connection structure, and wherein electrically conductive connecting block is used for protecting and connects the copper core of first cable and second cable, compresses tightly the copper core, can have fine connection effect, and simple structure, establish sealed locking piece at the outside cover of electrically conductive connecting block, connect the shell and can carry out fine connection with first cable and second cable.)

1. A safe connecting device of a cable is characterized in that: the connecting device comprises a conductive connecting block (3) for connecting a first cable (1) and a second cable (2), wherein the conductive connecting block (3) comprises a first electrical connecting block (301), a second electrical connecting block (303) and a third electrical connecting block (304), the first electrical connecting block (301) and the third electrical connecting block (304) are hinged to two sides of the second electrical connecting block (303), the first electrical connecting block (301), the second electrical connecting block (303) and the third electrical connecting block (304) are spliced to form a connecting port (305), and the first electrical connecting block (301) and the third electrical connecting block (304) are locked through a compression nut (306);

the copper cores of the first cable (1) and the second cable (2) are arranged in the connecting port (305) and are pressed tightly through the first electric connecting block (301) and the third electric connecting block (304).

2. A device for the secure connection of cables according to claim 1, characterised in that: the middle part of the conductive connecting block (3) is provided with an inwards sunken circular ring, the circular ring is provided with a locking hoop (6), the locking hoop (6) is sleeved on the conductive connecting block (3), one end of a first locking sheet (601) and one end of a second locking sheet (602) in the locking hoop (6) are hinged, and the other end of the first locking sheet and the second locking sheet are locked through a double-end nut (603).

3. A device for the secure connection of cables according to claim 1, characterised in that: be equipped with sealed latch segment (4), sealed latch segment (4) cover is established on electrically conductive connecting block (3), and sealed latch segment (4) structure is: the first locking cover (401) and the second locking cover (402) are spliced, threads are arranged at two ends of the sealing locking block (4), and threads are arranged in the middle of the sealing locking block (4);

the sealing locking block (4) is pressed on the outer insulating layers of the first cable (1) and the second cable (2), the middle part of the sealing locking block is locked by a middle locking nut (403), and the two ends of the sealing locking block are locked by a sealing nut (405).

4. A device for the secure connection of cables according to claim 2 or 3, characterised in that: the sealing locking block (4) is internally provided with a boss (404), the two sides of the inwards-sunken circular ring in the middle of the conductive connecting block (3) are provided with a limiting table (302), and the boss (404) abuts against the limiting table (302).

5. A device for the secure connection of cables according to claim 3, characterised in that: the thread diameter of the threads at the two ends of the sealing locking block (4) is smaller than that of the threads at the middle part.

6. A device for the secure connection of cables according to claim 3, characterised in that: the inside of the sealing locking block (4) is conical, and the diameter of the opening is smaller than the inner diameter.

7. A device for the secure connection of cables according to claim 3, characterised in that: be equipped with connecting shell (5), connecting shell (5) cover and establishing in sealed latch segment (4) outside, connecting shell (5) structure is: the first shell (501) is hinged to the second shell (504), two ends of the connecting shell (5) are provided with pressing sleeves (503), and the outsides of the pressing sleeves (503) are provided with locking nuts (502).

8. The secure connection of cables of claim 7, wherein: the pressing sleeve (503) is sleeved on the outer insulating skins of the first cable (1) and the second cable (2), and a plurality of pressing grooves (505) are formed in the pressing sleeve (503).

9. A device for the secure connection of cables according to claim 1, characterised in that: in the conductive connecting block (3), shrinkage joints (307) are arranged among the first electrical connecting block (301), the second electrical connecting block (303) and the third electrical connecting block (304).

10. A device for the secure connection of cables according to claim 1, characterised in that: the connecting port (305) is conical, and the opening diameter of the connecting port (305) is smaller than the inner diameter.

Technical Field

The invention relates to the field of cable connection, in particular to a safe connecting device of a cable.

Background

Cables are important media for power transmission, and are generally made of a plurality of mutually insulated conductors and an outer insulating protective layer, which are wires for transmitting power or information from one place to another.

In order to meet the requirement of length in cable laying, cables need to be reliably connected, and cable connection joints are formed at cable connection positions. Traditional cable junction mode is very simple, only adopt clamp or lantern ring fixed cable's corresponding connected node can, some even only use aluminium foil paper or insulating material in the outside parcel of cable, reach the effect of sealing connected node can, but above these several modes all have following defect: the connection operation is complex, various crimping and clamping tools are needed, and the processing of the connection node consumes more time; in addition, the accurate execution of the connection process standard is difficult to control, so that the connection quality of the connection node is difficult to realize effective control; once the problem occurs due to poor power circulation or when maintenance is carried out, the traditional fixedly connected connecting nodes need to be dismantled one by one to dismantle the obstacle points, so that the working efficiency is low.

Chinese patent "CN 109378605A" plug-in type cable connector, connect formula cable connector through wear to establish first mounting and first holder back butt conductor with the cable and plug into the piece, female first mechanism of rethread fixed establishment lock solid and first public first mechanism, thereby realize the plug-in type installation that cable and conductor connect into the piece, this structural connection rigidity is relatively poor, the cable receives external force disturbance in-process, repeated buckling appears in cable tip and rigid connection structure's combination department, make the fatigue life of cable shorten greatly, at the safety joint who is used for interim cable, also be convenient for dismantle and install fast.

Disclosure of Invention

The invention mainly aims to provide a safe connecting device for a cable, which solves the problem that the fatigue life of the cable is greatly reduced because the joint of the end part of the cable and a rigid connecting structure is easy to repeatedly bend at a large angle in the traditional cable connecting process.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a safe connecting device of a cable comprises a conductive connecting block for connecting a first cable and a second cable, wherein the conductive connecting block comprises a first electric connecting block, a second electric connecting block and a third electric connecting block, the first electric connecting block and the third electric connecting block are hinged to two sides of the second electric connecting block, the first electric connecting block, the second electric connecting block and the third electric connecting block are spliced to form a connecting port, and the first electric connecting block and the third electric connecting block are locked through a compression nut;

the copper cores of the first cable and the second cable are arranged in the connecting port and are compressed tightly through the first electric connecting block and the third electric connecting block.

In the preferred scheme, the middle part of the conductive connecting block is provided with an inwards sunken circular ring, the circular ring is provided with a locking hoop, the locking hoop is sleeved on the conductive connecting block, one end of a first locking sheet and one end of a second locking sheet in the locking hoop are hinged, and the other end of the first locking sheet and the other end of the second locking sheet are locked through a double-headed nut.

In the preferred scheme, be equipped with sealed latch segment, sealed latch segment cover is established on electrically conductive connecting block, and sealed latch segment structure is: the first locking cover and the second locking cover are spliced, threads are arranged at two ends of the sealing locking block, and threads are arranged in the middle of the sealing locking block;

the sealing locking block is pressed on the outer insulating layers of the first cable and the second cable, the middle part of the sealing locking block is locked through a middle locking nut, and the two ends of the sealing locking block are locked through sealing nuts.

In the preferred scheme, a boss is arranged inside the sealing locking block, limiting platforms are arranged on two sides of the inwards-sunken circular ring in the middle of the conductive connecting block, and the boss abuts against the limiting platforms.

In a preferable scheme, the thread diameters of the threads at the two ends of the sealing and locking block are smaller than the thread diameter of the thread at the middle part.

In a preferable scheme, the inside of the sealing locking block is conical, and the diameter of the opening is smaller than the inner diameter.

In the preferred scheme, be equipped with the connection shell, connect the shell cover and establish sealed locking piece outside, connect the shell structure and be: the first shell is hinged to the second shell, the two ends of the connecting shell are provided with pressing sleeves, and locking nuts are arranged outside the pressing sleeves.

In the preferred scheme, the compressing sleeve is sleeved on the outer-layer insulating skin of the first cable and the second cable, and a plurality of compressing grooves are formed in the compressing sleeve.

In a preferable scheme, in the conductive connecting block, shrinkage joints are arranged among the first electric connecting block, the second electric connecting block and the third electric connecting block.

In a preferable scheme, the connecting port is conical, and the opening diameter of the connecting port is smaller than the inner diameter.

The invention provides a safe connecting device of cables, which adopts a three-layer sealing connecting structure, wherein a conductive connecting block is used for protecting and connecting copper cores of a first cable and a second cable, the copper cores are tightly pressed, the connecting device has good connecting effect and simple structure, a sealing locking block is sleeved outside the conductive connecting block, the sealing locking block plays a role in sealing, a boss inside the sealing locking block and a limiting table have good axial positioning effect, the sealing locking block fixes outer insulating layers of the first cable and the second cable while sealing the conductive connecting block, the falling-off is prevented, the rigid connection is also enhanced, a connecting shell is sleeved outside the sealing locking block, the connecting shell can well connect the first cable and the second cable, the cable bending degree at a connecting node is reduced when external force disturbance is prevented, and the first cable and the second cable are also prevented from falling off, the structure also facilitates the safe connection, convenient disassembly and quick installation of the temporary cable, and has simple structure and convenient use.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is an exploded view of the general construction of the present invention;

FIG. 2 is a view of the installation of the present invention;

FIG. 3 is a disassembled view of the coupling housing of the present invention;

FIG. 4 is a view of the compression sleeve of the connector housing of the present invention;

FIG. 5 is a disassembled structure view of the sealing locking block of the present invention;

FIG. 6 is a structural view of the installation position of the sealing locking block of the present invention;

FIG. 7 is a front view of the seal lock block of the present invention:

FIG. 8 is a view showing the structure of the installation of the conductive connecting block of the present invention;

FIG. 9 is a view showing the construction of a conductive connecting block according to the present invention;

FIG. 10 is a structural view of the conductive connecting block of the present invention;

FIG. 11 is a disassembled structure view of the conductive connecting block of the present invention;

FIG. 12 is a left side view of the conductive connection block of the present invention;

FIG. 13 is a front view of the conductive connection block of the present invention;

in the figure: a first cable 1; a second cable 2; a conductive connection block 3; a first electrical connection block 301; a stop block 302; a second electrical connection block 303; a third electrical connection block 304; a connection port 305; a compression nut 306; a shrink seam 307; sealing the locking block 4; a first locking cover 401; a second locking cap 402; a middle lock nut 403; a boss 404; a seal nut 405; a connection housing 5; a first housing 501; a lock nut 502; a compression sleeve 503; a second housing 504; a pressing groove 505; a locking band 6; a first locking tab 601; a second locking tab 602; a double-headed nut 603.

Detailed Description

As shown in fig. 1 to 13, a safety connection device for cables comprises a conductive connection block 3 for connecting a first cable 1 and a second cable 2, wherein the conductive connection block 3 comprises a first electrical connection block 301, a second electrical connection block 303 and a third electrical connection block 304, the first electrical connection block 301 and the third electrical connection block 304 are hinged at two sides of the second electrical connection block 303, the first electrical connection block 301, the second electrical connection block 303 and the third electrical connection block 304 are spliced to form a connection port 305, the first electrical connection block 301 and the third electrical connection block 304 are locked by a compression nut 306, copper cores of the first cable 1 and the second cable 2 are arranged in the connection port 305 and compressed by the first electrical connection block 301 and the third electrical connection block 304, and thus, the first electrical connection block 301, the second electrical connection block 303 and the third electrical connection block 304 are in a hinged structure, the first electrical connection block 301 and the third electrical connection block 304 are opened, the copper cores of the first cable 1 and the second cable 2 are placed in the connection port 305, the first electrical connection block 301 and the third electrical connection block 304 are then closed and tightened by a compression nut 306 for a good connection.

In the preferred scheme, 3 middle parts of electrically conductive connecting block are equipped with inside sunken ring, be equipped with locking hoop 6 on the ring, the cover of locking hoop 6 is established on electrically conductive connecting block 3, first stay 601 and second stay 602 one end in the locking hoop 6 are articulated, the other end passes through double-end nut 603 and locks, from this structure, establish locking hoop 6 cover on electrically conductive connecting block 3 behind the electrically conductive connecting block 3 of locking, play the dual tight effect of escorting, prevent that first electric piece 301, second electric piece 303 and third electric piece 304 hinge position from becoming flexible, it is fixed with locking hoop 6 secondary.

In the preferred scheme, be equipped with sealed locking block 4, sealed locking block 4 cover is established on electrically conductive connecting block 3, and sealed locking block 4 structure is: first locking lid 401 and the concatenation of second locking lid 402, 4 both ends of sealed locking piece are equipped with the screw thread, 4 middle parts of sealed locking piece are equipped with the screw thread, sealed locking piece 4 is pressed on first cable 1 and 2 outer insulating layers of second cable, and the middle part is locked through middle part lock nut 403, and seal nut 405 locking is passed through at both ends, and from this structure, first locking lid 401 and the concatenation of second locking lid 402 recycle middle part lock nut 403 and seal nut 405 locking, can play fine sealed electrically conductive connecting block 3's effect.

In the preferred scheme, inside boss 404 that is equipped with of sealed locking piece 4, the inside sunken ring both sides in conductive connecting block 3 middle part are equipped with spacing platform 302, boss 404 supports and leans on spacing platform 302, and from this structure, when using sealed locking piece 4, with boss 404 card on spacing platform 302, can evenly wrap the outer insulating layer of first cable 1 and second cable 2, also prevent that first cable 1 and second cable 2 from droing.

In a preferable scheme, the thread diameters of the threads at the two ends of the sealing locking block 4 are smaller than the thread diameter of the thread at the middle part, so that the middle locking nut 403 and the sealing nut 405 are convenient to install.

In the preferred scheme, sealed locking block 4 is inside to be the toper, opening diameter is less than inside diameter, plays the outer insulating layer of pushing tightly first cable 1 and second cable 2, prevents to pull at external force and tear messenger first cable 1 and second cable 2 and drop.

In the preferred scheme, be equipped with and connect shell 5, connect 5 covers of shell and establish in sealed locking block 4 outsides, connect 5 structures of shell and be: first casing 501 is articulated with second casing 504, connect shell 5 both ends and be equipped with compressing tightly cover 503, compress tightly the outside lock nut 502 that is equipped with of cover 503, from this structure, connect shell 5 and entangle sealed locking piece 4, connect shell 5 and fix first cable 1 and second cable 2, when preventing the external force disturbance, the cable crookedness of junction point reduces.

In a preferred scheme, the pressing sleeve 503 is sleeved on the outer-layer insulating skins of the first cable 1 and the second cable 2, the pressing sleeve 503 is provided with a plurality of pressing grooves 505, and the pressing grooves 505 play a role in pressing the first cable 1 and the second cable 2 well, so that the first cable 1 and the second cable 2 are prevented from falling off.

In a preferable scheme, in the conductive connection block 3, a contraction joint 307 is arranged among the first electrical connection block 301, the second electrical connection block 303 and the third electrical connection block 304, and the contraction joint 307 can enable copper cores of the first cable 1 and the second cable 2 to be pressed more tightly to prevent the copper cores from falling off.

Preferably, the connection port 305 is tapered, and the diameter of the opening of the connection port 305 is smaller than the inner diameter, so as to play a role of compression.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.