CN213717069U

CN213717069U - Cable coupler

Info

Publication number: CN213717069U
Application number: CN202022536868.7U
Authority: CN
Inventors: 许文杰; 任锁; 张飞; 张悦芳; 李德利; 韩松岭; 崔志远; 侯俊华
Original assignee: North Weijiamao Coal Power Co Ltd
Current assignee: North Weijiamao Coal Power Co Ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-07-16
Anticipated expiration: 2030-11-05

Abstract

The utility model provides a cable coupler relates to the cable junction equipment field, and the cable coupling efficiency that exists is low, staff intensity of labour is high problem design for solving current cable coupler. The cable coupler comprises a connector lug and a plug wire lug, wherein the connector lug and the plug wire lug respectively comprise a shell, a conductive rod arranged in the shell and a threading assembly in plug fit with the shell, the threading assembly is a barrel structure with two ends penetrating through, one end of the barrel structure forms a jack, a blade is fixedly arranged in an inner cavity of the barrel structure, and the cutting edge of the blade faces the jack; the lateral wall of shell inserts elastically and is equipped with T shape gag lever post, and the vertical portion of T shape gag lever post stretches into the shell, and the end connection of vertical portion has the extrusion piece, and the extrusion piece is configured to compress tightly in the conducting rod through the cable of blade cutting behind threading subassembly is pegged graft in the shell. The utility model provides a cable coupling is efficient and staff low in labor strength to the coupling of cable.

Description

Cable coupler

Technical Field

The utility model relates to a cable junction equipment field particularly, relates to a cable coupler.

Background

The cable coupler is a device capable of connecting two cables, and mainly comprises two parts, wherein one part is as follows: the connector is integral with the cable to be connected, or the part intended to be connected to the cable, and the other part is: the plug is integral with the cable connected to the appliance or connector, or the component intended to be connected to the cable. Where the plug in the cable coupler is the same component as the plug in the "plug and socket", the connector and (outlet) socket typically have the same contact structure.

At present, most of cable couplers are old simple connectors, the safety and the anti-falling performance are poor, more auxiliary tools (such as screwdrivers, blades and the like) are needed for connection during connection, and the cable couplers are inconvenient to strip off the outer skin of the cable, so that the coupling efficiency of the cable is low, and the labor intensity of workers is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable coupler to solve the technical problem that the cable coupling efficiency that current cable coupler exists is low, staff intensity of labour is high.

The utility model provides a cable coupler, including the connector lug and the plug wire head that peg graft and cooperate and can the electricity be connected, the connector lug with the plug wire head all include the shell, set up in the conducting rod in the shell and with the shell grafting complex threading subassembly, wherein, the threading subassembly is the tubular construction that both ends run through, the one end of tubular construction forms the jack, the inner chamber of tubular construction is fixed and is provided with the blade, the blade edge of blade is towards the jack; a T-shaped limiting rod is elastically inserted into the side wall of the shell, a vertical part of the T-shaped limiting rod extends into the shell, the end part of the vertical part is connected with an extrusion block, and the extrusion block is configured to press the cable cut by the blade onto the conductive rod after the threading assembly is inserted into the shell; the T-shaped limiting rod always has the tendency that the extrusion block is abutted to the conducting rod.

Furthermore, the housing comprises a conical cover body, a first connecting cylinder and a second connecting cylinder, the first connecting cylinder and the second connecting cylinder are both fixedly connected to one end of the conical cover body with the smaller diameter, and the second connecting cylinder is sleeved outside the first connecting cylinder; the threading assembly comprises a third connecting cylinder and a fourth connecting cylinder which are sleeved with each other, the outer wall of the third connecting cylinder is in inserting fit with the inner wall of the first connecting cylinder, and the fourth connecting cylinder is inserted between the first connecting cylinder and the second connecting cylinder; and the vertical part of the T-shaped limiting rod sequentially penetrates through the second connecting cylinder and the first connecting cylinder.

Furthermore, a U-shaped fixing piece is fixedly arranged on the outer wall of the second connecting cylinder, a pull rod in sliding connection with the U-shaped fixing piece is inserted into the U-shaped fixing piece, a clamping block is fixedly sleeved on the pull rod, the bottom end of the clamping block is attached to the outer wall of the second connecting cylinder, the pull rod extends into the second connecting cylinder and is positioned between the second connecting cylinder and the first connecting cylinder, a first spring is sleeved on the pull rod, one end of the first spring is abutted to the inner top surface of the U-shaped fixing piece, and the other end of the first spring is abutted to the top end of the clamping block; the outer wall of the fourth connecting cylinder is provided with an annular clamping groove, and the pull rod can be clamped into the annular clamping groove after the threading assembly is installed in place.

Further, the second connecting cylinder with be provided with the second spring between the first connecting cylinder, the one end of second spring with toper cover body fixed connection, the flexible direction of second spring with threading subassembly's insertion direction is parallel, the second spring is in threading subassembly installation back in place with the butt of fourth connecting cylinder, just the second spring has always with the outside ejecting trend of fourth connecting cylinder.

Further, the number of the second springs is multiple, and the multiple second springs are arranged at intervals along the circumferential direction of the first connecting cylinder.

Furthermore, an arc-shaped groove is formed in the inner wall of the first connecting cylinder, the shape of the extrusion block is matched with that of the arc-shaped groove, and the extrusion block can be completely embedded into the arc-shaped groove; the outer wall of the first connecting cylinder is provided with a movable groove communicated with the arc-shaped groove, and the T-shaped limiting rod penetrates through the movable groove; the T-shaped limiting rod is sleeved with a third spring, one end of the third spring is abutted to the inner wall of the second connecting cylinder, and the other end of the third spring is abutted to the extrusion block.

Furthermore, the number of the T-shaped limiting rods is two, and the two T-shaped limiting rods are respectively arranged on two opposite sides of the second connecting cylinder.

Furthermore, the threading assembly further comprises a T-shaped sleeve, the third connecting cylinder is fixedly sleeved on the section with the smaller shaft diameter of the T-shaped sleeve, the fourth connecting cylinder is fixedly sleeved on the section with the larger shaft diameter of the T-shaped sleeve, and the inner hole of the T-shaped sleeve forms the jack.

Further, the jack is fixedly provided with a sealing ring.

Further, the connector lug with one of the two of plug wire end is fixed and is provided with first connecting block, and another is fixed and is provided with the second connecting block, it is provided with the U-shaped buckle to rotate on the first connecting block, the fixed spill rubber that is provided with on the second connecting block, the U-shaped buckle can rotate the card and go into in the spill rubber.

The utility model discloses beneficial effect that cable coupler brought is:

when the cable coupler is used for coupling two cables, the connection between the cable and the conducting rod in the wire plugging head is taken as an example for explanation, the cable is penetrated into the jack of the threading assembly, and the cutting edge of the blade cuts the cable in the process of penetrating the cable; then, the T-shaped limiting rod is positioned at a position separated from the conducting rod, and the penetrating component penetrated with the cable is inserted into the shell, so that the cable cut by the blade is laid on the conducting rod; then, releasing the T-shaped limiting rod, so that the extrusion block arranged at the end part of the vertical part of the T-shaped limiting rod presses the cable laid on the conductive rod, and the coupling of the cable in the plug and the conductive rod is completed; at the same time, another cable to be coupled can be coupled with the connector lug in the same manner; and finally, inserting the connector lug and the plug wire lug which are respectively coupled with the cables, and realizing the coupling of the two cables by utilizing the electric connection of the connector lug and the plug wire lug.

When the cable coupler couples two cables, the two cables to be coupled are directly inserted into the jacks of the connector lug and the plug lug respectively, other auxiliary mounting tools are not needed, the coupling efficiency of the cables is improved, the operation is convenient and fast, and the labor intensity of workers is reduced.

In addition, the T-shaped limiting rod is elastically inserted into the shell, so that the extrusion block arranged on the T-shaped limiting rod can compress the cable cut by the blade on the conducting rod all the time, the anti-falling performance is good, and the connection reliability of the cable and the conducting rod is ensured. Moreover, because the cable has accomplished cutting, the operation of skinning promptly penetrating the in-process of jack, need not the staff and has adopted other instruments to carry out above-mentioned processing to the cable to reduce the risk that the staff received the injury, the security improves greatly.

Drawings

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

Fig. 1 is a schematic structural diagram of a cable coupler according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic top view of a blade of a cable coupler according to an embodiment of the present invention;

fig. 4 is a schematic top view of a conductive rod of a cable coupler according to an embodiment of the present invention;

fig. 5 is a schematic top view of a cable coupler at a first connection block according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a cable coupler according to an embodiment of the present invention in a using process.

Description of reference numerals:

1-a connector lug; 2-plug wire head; 3-a first connection block; 4, fixing blocks; 5-a hinge pin; 6-U-shaped buckle; 7-concave rubber; 8-a conductive plate; 9-a conductive rod; 10-a first connecting cylinder; 11-a second connector barrel; 12-U-shaped fasteners; 13-a pull rod; 14-a first spring; 15-a fixture block; 16-a second spring; 17-an extrusion block; 18-an arc-shaped groove; 19-T shaped stop lever; 20-a third spring; 21-a movable groove; 22-a third connector barrel; 23-a blade; a 24-T shaped sleeve; 25-a jack; 26-a sealing ring; 27-a fourth connector barrel; 28-ring slot; 29-second connecting block.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of a cable coupler provided in this embodiment, fig. 2 is a cross-sectional view taken along a line a-a in fig. 1, fig. 3 is a schematic top view of a blade 23 of the cable coupler provided in this embodiment, and fig. 4 is a schematic top view of a conductive rod 9 of the cable coupler provided in this embodiment. As shown in fig. 1 to 4, the present embodiment provides a cable coupler, which includes a connector lug 1 and a plug 2 that are in plugging fit and can be electrically connected, where the connector lug 1 and the plug 2 each include a housing, a conductive rod 9 disposed in the housing, and a threading assembly in plugging fit with the housing, specifically, the threading assembly is a barrel structure with two ends penetrating through, a receptacle 25 is formed at one end of the barrel structure, a blade 23 is fixedly disposed in an inner cavity of the barrel structure, and a cutting edge of the blade 23 faces the receptacle 25; a T-shaped limiting rod 19 is elastically inserted into the side wall of the shell, the vertical part of the T-shaped limiting rod 19 extends into the shell, the end part of the vertical part is connected with an extrusion block 17, and the extrusion block 17 is configured to press the cable cut by the blade 23 to the conductive rod 9 after the threading assembly is inserted into the shell; the T-shaped stopper rod 19 always tends to abut the pressing block 17 against the conductive rod 9.

When the cable coupler is used for coupling two cables, the connection between the cable and the conductive rod 9 in the wire plugging head 2 is taken as an example for explanation, the cable is threaded from the insertion hole 25 of the threading assembly, and the cutting edge of the blade 23 cuts the cable in the process of the cable threading; then, the T-shaped limiting rod 19 is positioned at a position separated from the conducting rod 9, and the penetrating component penetrated with the cable is inserted into the shell, so that the cable cut by the blade 23 is laid on the conducting rod 9; then, releasing the T-shaped limiting rod 19, so that the extrusion block 17 arranged at the end part of the vertical part of the T-shaped limiting rod 19 presses the cable laid on the conducting rod 9, and the coupling of the cable in the plug 2 and the conducting rod 9 is completed; at the same time, another cable to be coupled can be coupled with the connector lug 1 in the same manner; and finally, inserting the connector lug 1 and the plug wire 2 which are respectively coupled with the cables, and realizing the coupling of the two cables by utilizing the electric connection of the connector lug 1 and the plug wire 2.

When the cable coupler couples two cables, the two cables to be coupled are directly inserted into the jacks 25 of the connector lug 1 and the plug wire 2 respectively, other auxiliary mounting tools are not needed, the coupling efficiency of the cables is improved, the operation is convenient and fast, and the labor intensity of workers is reduced.

In addition, the T-shaped limiting rod 19 which is elastically inserted into the shell is utilized, so that the extrusion block 17 arranged on the T-shaped limiting rod 19 can press the cable which is cut by the blade 23 on the conducting rod 9 all the time, the anti-falling performance is good, and the connection reliability of the cable and the conducting rod 9 is ensured. Moreover, because the cable has accomplished cutting, the operation of skinning promptly in the in-process that penetrates jack 25, need not the staff and adopts other instruments to carry out above-mentioned processing to the cable to reduce the risk that the staff received the injury, the security improves greatly.

Referring to fig. 1, in the present embodiment, the connector lug 1 and the plug 2 are provided with a conductive plate 8 inside the housing, and the conductive rods 9 are fixedly connected to the conductive plate 8, wherein the conductive plate 8 of the connector lug 1 is provided with a plurality of slots, the conductive plate 8 of the plug 2 is fixedly provided with a plurality of plug rods, and the plug rods are in one-to-one corresponding plugging fit with the slots to achieve the electrical connection between the plug 2 and the connector lug 1.

Referring to fig. 1, in the present embodiment, the housing includes a conical cover body, a first connecting cylinder 10 and a second connecting cylinder 11, wherein the first connecting cylinder 10 and the second connecting cylinder 11 are both fixedly connected to one end of the conical cover body with a smaller diameter, and the second connecting cylinder 11 is sleeved outside the first connecting cylinder 10; the threading assembly comprises a third connecting cylinder 22 and a fourth connecting cylinder 27 which are sleeved with each other, the outer wall of the third connecting cylinder 22 is in inserting fit with the inner wall of the first connecting cylinder 10, and the fourth connecting cylinder 27 is inserted between the first connecting cylinder 10 and the second connecting cylinder 11; the vertical portion of the T-shaped stopper rod 19 passes through the second connecting cylinder 11 and the first connecting cylinder 10 in this order.

The structural form of the shell enables the plug connector 2 and the connector lug 1 to be connected through one end with the larger diameter of the conical cover body, so that a plurality of plug posts and slots can be conveniently arranged, and on the other hand, the first connecting cylinder 10 and the second connecting cylinder 11 are plugged with the threading assembly, so that the connection is reliable.

Referring to fig. 1, in this embodiment, a U-shaped fixing element 12 is fixedly disposed on an outer wall of the second connecting cylinder 11, a pull rod 13 slidably connected to the U-shaped fixing element 12 is inserted into the U-shaped fixing element 12, wherein a fixture block 15 is fixedly sleeved on the pull rod 13, a bottom end of the fixture block 15 is attached to an outer wall of the second connecting cylinder 11, the pull rod 13 extends into the second connecting cylinder 11 and is located between the second connecting cylinder 11 and the first connecting cylinder 10, a first spring 14 is sleeved on the pull rod 13, one end of the first spring 14 abuts against an inner top surface of the U-shaped fixing element 12, and the other end of the first spring 14 abuts against a top end of the fixture block 15; an annular clamping groove 28 is formed in the outer wall of the fourth connecting cylinder 27, and the pull rod 13 can be clamped into the annular clamping groove 28 after the threading assembly is installed in place.

When the threading assembly is required to be connected with the shell, the pull rod 13 is pulled to move upwards, so that the first spring 14 is stressed and compressed; after inserting fourth connecting cylinder 27 between first connecting cylinder 10 and second connecting cylinder 11, loosen pull rod 13, at this moment, pull rod 13 moves between first connecting cylinder 10 and the second connecting cylinder 11 under the effect of the elastic restoring force of first spring 14 to in the ring groove 28 of seting up in the outer wall of fourth connecting cylinder 27, with the axial position locking of fourth connecting cylinder 27, promptly: the axial position of the threading assembly is locked, and the threading assembly is prevented from being separated from the shell. When the threading subassembly is pulled down from the shell as required, pulling pull rod 13 releases the clamping limit of pull rod 13 to ring groove 28, and the threading subassembly can be taken down from the shell.

So set up, guaranteed the reliability of being connected of threading subassembly and shell, prevented effectively that the pine of threading subassembly from taking off, further improved this embodiment cable coupler's anticreep nature.

Referring to fig. 1, in the present embodiment, a second spring 16 is disposed between the second connecting cylinder 11 and the first connecting cylinder 10, specifically, one end of the second spring 16 is fixedly connected to the conical cover, the extending direction of the second spring 16 is parallel to the inserting direction of the threading assembly, the second spring 16 abuts against the fourth connecting cylinder 27 after the threading assembly is mounted in place, and the second spring 16 always tends to push the fourth connecting cylinder 27 outward.

When an emergency power-off or the threading assembly is to be detached from the housing, the pull rod 13 is pulled to move upward to withdraw from the annular clamping groove 28, and then the fourth connecting cylinder 27 is ejected out under the elastic restoring force of the second spring 16, so that the emergency power-off is realized.

Referring to fig. 1, in the present embodiment, the number of the second springs 16 is two, and two second springs 16 are disposed on two opposite sides of the first connecting cylinder 10. So set up for after pull rod 13 withdraws from ring-shaped slot 28, fourth connecting cylinder 27 can receive sufficient ejecting force, in order to guarantee the promptness of emergency power failure.

In other embodiments, the number of second springs 16 may also be three, four or more, etc.

Referring to fig. 2, in the present embodiment, an arc-shaped groove 18 is formed on the inner wall of the first connecting cylinder 10, the shape of the extrusion block 17 is matched with the shape of the arc-shaped groove 18, and the extrusion block 17 can be completely embedded into the arc-shaped groove 18; the outer wall of the first connecting cylinder 10 is provided with a movable groove 21 which is the same as the arc-shaped groove 18, and the T-shaped limiting rod 19 is arranged in the movable groove 21 in a penetrating manner. Wherein, the T-shaped limiting rod 19 is sleeved with a third spring 20, one end of the third spring 20 is abutted with the inner wall of the second connecting cylinder 11, and the other end of the third spring 20 is abutted with the extrusion block 17.

In the process of cable coupling, a worker pulls the T-shaped limiting rod 19 to enable the third spring 20 to be in a compressed state, and meanwhile, the extrusion block 17 enters the corresponding arc-shaped groove 18; after the fourth connecting cylinder 27 is inserted between the first connecting cylinder 10 and the second connecting cylinder 11, at this time, the blade 23 has finished cutting the cable, and the T-shaped limiting rod 19 is released, at this time, the extrusion block 17 will be released from the arc-shaped groove 18 under the action of the elastic restoring force of the third spring 20, move toward the center direction of the first connecting cylinder 10, and press the cut cable onto the conductive rod 9.

The arc-shaped groove 18 is formed in the inner wall of the first connecting cylinder 10, and the extrusion block 17 can be completely embedded in the arc-shaped groove 18 before cable coupling is carried out, so that interference of the extrusion block 17 on a fed cable is effectively avoided, and the cable can be reliably laid on the conducting rod 9.

Referring to fig. 2, in the present embodiment, the number of the T-shaped limiting rods 19 is two, and the two T-shaped limiting rods 19 are respectively disposed on two opposite sides of the second connecting cylinder 11. So set up, guaranteed the contact reliability of the cable after being cut and conducting rod 9 to the coupling reliability of this embodiment cable coupler has been improved.

Referring to fig. 1, in the present embodiment, the threading assembly may further include a T-shaped sleeve 24, specifically, the third connecting cylinder 22 is fixedly sleeved on a section of the T-shaped sleeve 24 with a smaller shaft diameter, and the fourth connecting cylinder 27 is fixedly sleeved on a section of the T-shaped sleeve 24 with a larger shaft diameter, wherein an inner hole of the T-shaped sleeve 24 forms the insertion hole 25. The T-shaped sleeve 24 provides a relative fixation of the third connector barrel 22 and the fourth connector barrel 27 and ensures the structural strength of the threading assembly.

Referring to fig. 1, in the present embodiment, a sealing ring 26 is fixedly disposed in the insertion hole 25. Through setting up sealing washer 26 in jack 25 department for after the cable inserts from jack 25, can utilize sealing washer 26 to seal the space between cable and the jack 25, reduce the electric leakage risk, moreover, so set up, can also make and keep higher waterproof nature behind the cable coupling, further improve the security of this embodiment cable coupling in the use.

Specifically, the material of the seal ring 26 may be rubber.

It should be noted that, in this embodiment, since the structures of the threading assemblies of the connector lug 1 and the plug lug 2 are the same, the principle and the process of connecting the cable with the conductive rod 9 in the connector lug 1 are similar to the principle and the process of connecting the cable with the conductive rod 9 in the plug lug 2, and therefore, the description thereof is omitted through the text and the drawings.

Referring to fig. 1, in the present embodiment, the plug 2 is fixedly provided with a first connecting block 3, and the connector 1 is fixedly provided with a second connecting block 29, wherein the first connecting block 3 is rotatably provided with a U-shaped buckle 6, the second connecting block 29 is fixedly provided with a concave rubber 7, and the U-shaped buckle 6 can be rotatably clamped into the concave rubber 7.

After the inserted bar of the plug 2 is inserted into the slot of the connector lug 1, the U-shaped buckle 6 arranged on the plug 2 can be rotated, so that the U-shaped buckle 6 is clamped in the concave rubber 7 arranged on the connector lug 1, and the plug 2 and the connector lug 1 are further fixed. So set up, guaranteed plug wire head 2 and the reliable connection of connector lug 1, further improved this embodiment cable coupler's anticreep nature.

Fig. 5 is a schematic top view of the cable coupler provided in the present embodiment at the first connection block 3. Referring to fig. 1 and fig. 5, in the present embodiment, specifically, a fixing block 4 is fixedly disposed on the first connecting block 3, and the U-shaped buckle 6 is rotatably connected to the fixing block 4 through a hinge pin 5.

In other embodiments, the first connection block 3 may be provided on the connector 1, and the second connection block 29 may be provided on the plug 2, that is: a U-shaped buckle 6 is provided to the connector 1, and a concave rubber 7 is provided to the plug 2.

Fig. 6 is a schematic structural diagram of the cable coupler provided in this embodiment in a use process. With continued reference to fig. 1 and with reference to fig. 6, the cable coupler is used as follows: during installation, firstly, the third connecting cylinder 22 is sleeved on the section with the smaller shaft diameter of the T-shaped sleeve 24, the fourth connecting cylinder 27 is sleeved on the section with the larger shaft diameter of the T-shaped sleeve 24, and the pull rod 13 is pulled to move upwards, so that the first spring 14 is stressed and compressed, and the fourth connecting cylinder 27 is inserted between the first connecting cylinder 10 and the second connecting cylinder 11; then, the pull rod 13 is loosened, so that the pull rod 13 extends into the annular clamping groove 28 under the action of the elastic restoring force of the first spring 14, and the installation of the threading assembly is completed; then, the sealing ring 26 is sleeved on the cable, and the cable sleeved with the sealing ring 26 is arranged in the jack 25, so that the cable cannot move randomly and is cut by the blade 23 in the cable inserting process; meanwhile, the two T-shaped limiting rods 19 are pulled to enable the two third springs 20 to be stressed and compressed, at the moment, the two extrusion blocks 17 enter the two arc-shaped grooves 18, after the fourth connecting cylinder 27 is inserted between the first connecting cylinder 10 and the second connecting cylinder 11 and the pull rod 13 is clamped in the annular clamping groove 28, the two T-shaped limiting rods 19 are loosened, and therefore the two extrusion blocks 17 can clamp the cut cable under the action of elastic restoring force of the respective third springs 20 to enable the cut cable to be stably contacted with the conducting rod 9; finally, the U-shaped buckle 6 is rotated, so that the U-shaped buckle 6 is clamped in the concave rubber 7, and the fixing of the connector lug 1 and the plug wire 2 is completed.

When the cable in the cable coupler needs to be disassembled, the process is similar to the connection process, the two T-shaped limiting rods 19 are pulled, the two extrusion blocks 17 enter the corresponding arc-shaped grooves 18, the pull rod 13 is pulled, the pull rod 13 exits the annular clamping groove 28, and the fourth connecting cylinder 27 is pulled away.

When emergency power off or disassembly is needed, the pull rod 13 is pulled to move upwards, so that the first spring 14 is stressed and compressed, the pull rod 13 is withdrawn from the annular clamping groove 28, and the fourth connecting cylinder 27 is ejected out under the action of the elastic restoring force of the second spring 16, so that emergency power off is realized.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the above embodiments, the descriptions of the orientations such as "up", "down", and the like are based on the drawings.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The cable coupler is characterized by comprising a connector lug (1) and a plug wire (2) which are in plug-in fit and can be electrically connected, wherein the connector lug (1) and the plug wire (2) respectively comprise a shell, a conductive rod (9) arranged in the shell and a threading assembly in plug-in fit with the shell, the threading assembly is a barrel structure with two ends penetrating through, a jack (25) is formed at one end of the barrel structure, a blade (23) is fixedly arranged in an inner cavity of the barrel structure, and a cutting edge of the blade (23) faces the jack (25); a T-shaped limiting rod (19) is elastically inserted into the side wall of the shell, the vertical part of the T-shaped limiting rod (19) extends into the shell, the end part of the vertical part is connected with an extrusion block (17), and the extrusion block (17) is configured to compress a cable cut by the blade (23) on the conductive rod (9) after the threading assembly is inserted into the shell; the T-shaped limiting rod (19) always has the tendency that the extrusion block (17) is abutted to the conductive rod (9).

2. The cable coupler according to claim 1, wherein the housing comprises a conical cover body, a first connecting cylinder (10) and a second connecting cylinder (11), the first connecting cylinder (10) and the second connecting cylinder (11) are fixedly connected at one end of the conical cover body with a smaller diameter, and the second connecting cylinder (11) is sleeved outside the first connecting cylinder (10); the threading assembly comprises a third connecting cylinder (22) and a fourth connecting cylinder (27) which are sleeved with each other, the outer wall of the third connecting cylinder (22) is in inserting fit with the inner wall of the first connecting cylinder (10), and the fourth connecting cylinder (27) is inserted between the first connecting cylinder (10) and the second connecting cylinder (11); the vertical part of the T-shaped limiting rod (19) sequentially penetrates through the second connecting cylinder (11) and the first connecting cylinder (10).

3. The cable coupler according to claim 2, wherein a U-shaped fixing member (12) is fixedly arranged on an outer wall of the second connecting cylinder (11), a pull rod (13) slidably connected with the U-shaped fixing member (12) is inserted into the U-shaped fixing member (12), a clamping block (15) is fixedly sleeved on the pull rod (13), a bottom end of the clamping block (15) is attached to the outer wall of the second connecting cylinder (11), the pull rod (13) extends into the second connecting cylinder (11) and is located between the second connecting cylinder (11) and the first connecting cylinder (10), a first spring (14) is sleeved on the pull rod (13), one end of the first spring (14) is abutted against an inner top surface of the U-shaped fixing member (12), and the other end of the first spring (14) is abutted against a top end of the clamping block (15); annular groove (28) have been seted up to the outer wall of fourth connecting cylinder (27), pull rod (13) can be in threading subassembly installation back card is in place goes into annular groove (28).

4. A cable coupler according to claim 3, characterised in that a second spring (16) is arranged between the second connecting cylinder (11) and the first connecting cylinder (10), one end of the second spring (16) is fixedly connected with the conical cover, the extension and retraction direction of the second spring (16) is parallel to the insertion direction of the threading assembly, the second spring (16) abuts against the fourth connecting cylinder (27) after the threading assembly is mounted in place, and the second spring (16) always has a tendency to push the fourth connecting cylinder (27) outwards.

5. The cable coupling according to claim 4, wherein the second spring (16) is plural in number, and the plural second springs (16) are arranged at intervals in a circumferential direction of the first connecting cylinder (10).

6. The cable coupler according to any one of claims 2 to 5, characterized in that the inner wall of the first connecting cylinder (10) is provided with an arc-shaped groove (18), the shape of the extrusion block (17) is matched with the shape of the arc-shaped groove (18), and the extrusion block (17) can be completely embedded in the arc-shaped groove (18); the outer wall of the first connecting cylinder (10) is provided with a movable groove (21) communicated with the arc-shaped groove (18), and the T-shaped limiting rod (19) penetrates through the movable groove (21);

the T-shaped limiting rod (19) is sleeved with a third spring (20), one end of the third spring (20) is abutted to the inner wall of the second connecting cylinder (11), and the other end of the third spring (20) is abutted to the extrusion block (17).

7. A cable coupler according to any one of claims 2 to 5, wherein the number of the T-shaped limiting rods (19) is two, and two T-shaped limiting rods (19) are respectively arranged on two opposite sides of the second connecting cylinder (11).

8. The cable coupling according to any one of claims 2 to 5, wherein the threading assembly further comprises a T-shaped sleeve (24), the third connecting cylinder (22) is fixedly sleeved on a section of the T-shaped sleeve (24) with a smaller shaft diameter, the fourth connecting cylinder (27) is fixedly sleeved on a section of the T-shaped sleeve (24) with a larger shaft diameter, and an inner hole of the T-shaped sleeve (24) forms the insertion hole (25).

9. Cable coupler according to claim 8, characterized in that the receptacle (25) is fixedly provided with a sealing ring (26).

10. The cable coupler according to any one of claims 1 to 5, wherein one of the connector lug (1) and the plug (2) is fixedly provided with a first connecting block (3) and the other is fixedly provided with a second connecting block (29), the first connecting block (3) is rotatably provided with a U-shaped buckle (6), the second connecting block (29) is fixedly provided with a concave rubber (7), and the U-shaped buckle (6) can be rotatably clamped into the concave rubber (7).