CN114639991A

CN114639991A - Electric wire plug-in assembly convenient to plug and used for electric power

Info

Publication number: CN114639991A
Application number: CN202210330700.1A
Authority: CN
Inventors: 王洪涛; 郑雅馨; 胡友旺; 肖博文
Original assignee: Jingmen Power Supply Co of State Grid Hubei Electric Power Co Ltd
Current assignee: Jingmen Power Supply Co of State Grid Hubei Electric Power Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-06-17

Abstract

The invention belongs to the field of wire plugging, and particularly relates to a conveniently-plugged wire plugging component for electric power, which comprises an electric control element, a ratchet wheel, a plate spring A, a pressing block, a plate spring B, a limiting rod, a trigger rod, a volute spring B and the like, wherein a movable groove A is formed in the inner wall of a wiring groove of the electric control element, a rotating shaft A is rotatably matched with the circular groove A in the inner wall of the movable groove A, and the ratchet wheel is installed on the rotating shaft A; when the wire copper core is to be separated from the wiring groove under vibration, the four-bar parallelogram structure formed by the connecting bar A, the connecting bar B and the connecting bar C can drive the two pressing blocks to further compress the wire copper core under the action of the two volute springs A, so that the wire copper core is prevented from being separated from the wiring groove. Meanwhile, the ratchet wheel is matched with the limiting rod to separate the copper core of the electric wire from the wiring groove to form a barrier, and the phenomenon that the copper core of the electric wire inserted into the wiring groove is loose to cause poor contact under external vibration is avoided.

Description

Electric wire plug-in assembly convenient to plug in and used for electric power

Technical Field

The invention belongs to the field of wire plugging, and particularly relates to a wire plugging component convenient to plug and used for electric power.

Background

Used generally such as circuit breaker, fuse or switch among the electric power construction fastens the electric wire copper core that will insert the wiring groove through tightening the bolt, carries out the in-process that fastens inserting the electric wire copper core of wiring inslot, operates because of needing to use instruments such as screwdrivers, so, lead to carrying out the operation of fixing to the electric wire copper core that inserts the wiring groove more loaded down with trivial details, and the fastening degree of electric wire copper core in the wiring groove receives operator's influence great.

In addition, there is a method of locking a copper core of an electric wire inserted into a wire connecting groove by a locking structure based on the pressing force of a compression spring. The locking mode has the defect of spring failure after long-term use, and once the spring which is responsible for pressing fails, poor contact is caused by the fact that the copper core of the wire shakes in the wiring groove. In order to ensure that the locking force is large, the elastic coefficient of the spring must be large, so that the plugging of the copper core of the electric wire is laborious.

The invention designs a wire plugging component for electric power, which is convenient to plug.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a wire plugging component for electric power, which is convenient to plug and is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship that the product of the present invention is usually placed in when used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A convenient-to-plug electric wire plug-in component for electric power comprises an electric control element, a rotating shaft A, a vortex spring A, a ratchet wheel, a shifting rod A, a connecting rod B, a connecting rod C, U rod, a leaf spring A, a pressing block, a leaf spring B, a limiting rod, a shifting plate B, an outer sleeve, a spring A, a spring B, a trigger rod, a shifting plate A, a shifting rod B, a rotating shaft B, a vortex spring B and a shifting rod C, wherein a movable groove A is formed in the inner wall of a wiring groove of the electric control element, the rotating shaft A is rotatably matched with the circular groove A in the inner wall of the movable groove A, and the ratchet wheel is installed on the rotating shaft A; a vortex spring A for resetting the rotating shaft A is arranged on the rotating shaft A; the tail ends of a connecting rod A arranged on the ratchet wheel and a connecting rod B swinging around a fixed axis are respectively hinged with two ends of a connecting rod C, and the connecting rod C is always parallel to the copper core of the electric wire inserted into the wiring groove; the tail end of the strut perpendicular to the connecting rod C is hinged with a U-shaped rod which is positioned on the same vertical central plane with the connecting rod C through a round pin parallel to the rotating shaft A; two tail ends of the U rod are respectively hinged with a pressing block matched with a copper core of the electric wire inserted into the wiring groove, and the pressing blocks swing around a fixed axis parallel to the rotating shaft A relative to the U rod; two plate springs A for resetting the U rod are symmetrically arranged between the U rod and the connecting rod C, and two plate springs B for resetting the U rod are symmetrically arranged between the pressing block and the U rod.

A sleeve is arranged in the sliding groove A on the inner wall of the movable groove A in a sliding mode in the direction perpendicular to the rotating shaft A, a limiting rod slides in the sleeve in the direction perpendicular to the rotating shaft A, and a spring A for resetting the limiting rod is arranged in the sleeve; one end of the limiting rod plays a role of a pawl, and a sharp corner is matched with a ratchet A on the ratchet wheel; a trigger rod which is integrally connected with the outer sleeve and matched with a deflector rod A arranged on the ratchet wheel slides in a sliding groove B on the side wall of the movable groove A along the direction vertical to the rotating shaft A, and a spring B for resetting the trigger rod is arranged in the electric control element; a rotating shaft B parallel to the rotating shaft A is rotatably matched with a circular groove B on the side wall of a movable groove B communicating the sliding groove A and the sliding groove B, and a vortex spring B for resetting the rotating shaft B is nested on the rotating shaft B; the rotating shaft B is provided with a deflector rod C and a deflector rod B; the shifting rod C is matched with a shifting plate B arranged on the limiting rod, and the shifting rod B is matched with a shifting plate A arranged on the trigger rod.

As a further improvement of the technology, an L-shaped copper contact piece matched with a copper core of the wire is arranged in a wiring groove on the electric control element; the outer sleeve is connected with the trigger rod through a synchronous rod which is movable in the movable groove B; the spring B is an extension spring; the spring B is positioned in a circular groove C on the inner wall of the movable groove B; one end of the spring B is connected with the inner wall of the circular groove C, and the other end of the spring B is connected with the synchronizing rod.

As a further improvement of the technology, a circular groove D communicated with the outer side of the electric control element is formed in the inner wall of the sliding groove B, and a manual button arranged at the tail end of the trigger rod moves in the circular groove D; two guide blocks are symmetrically arranged on the limiting rod and respectively slide in two guide grooves on the inner wall of the outer sleeve. The guide block and the guide groove are matched to play a positioning and guiding role in the sliding of the limiting rod in the outer sleeve. The spring A is a compression spring; one end of the spring A is connected with the inner wall of the outer sleeve, and the other end of the spring A is connected with the end face of the limiting rod.

As a further improvement of the technology, one end of the plate spring A is connected with the U-shaped rod, and the other end of the plate spring A is connected with the connecting rod C; one end of the plate spring B is connected with a corresponding side wall on the U rod, and the other end of the plate spring B is connected with a corresponding pressing block; a ring sleeve is fixedly arranged on the rotating shaft C; and the deflector rod B and the deflector rod C are fixedly arranged on the ring sleeve. The existence of the ring sleeve effectively increases the transverse size of the shift lever C and the shift lever B, so that the strength of the shift lever C and the shift lever B is increased.

As a further improvement of the technology, the end face of the pressing block is provided with an arc surface A matched with the copper core of the wire, and arc-shaped ratchets B which are uniformly distributed along the central axis of the arc surface A are densely distributed on the arc surface A. The cambered surface A effectively increases the action area of the pressing block and the wire copper core, so that the friction force between the pressing block and the wire copper core is increased, meanwhile, an effective constraint effect is formed on the multi-strand copper core, and the phenomenon that the inserting failure of the wire in the limit releasing groove due to the disorder of the multi-strand copper core in the pressing process of the pressing block is avoided. The ratchet B densely distributed on the cambered surface A can further increase the friction between the pressing block and the wire copper core, and meanwhile, the wire copper core can be effectively prevented from reversely separating from the wiring slot under the low pressure of the pressing block. The two tail ends of the U rod are provided with convex cambered surfaces C with radian of 180 degrees; the cambered surface C is in rotating fit with the concave cambered surface B on the end surface of the corresponding pressing block, so that effective rotating fit between the pressing block and the tail end of one of the U-shaped rods around the fixed rotating axis is ensured. And guide plates for guiding the copper cores of the electric wires to go deep into the wiring grooves are arranged at the side ends, close to the notch of the wiring grooves, of each pressing block.

Compared with the traditional wire plugging mode in the electric control element, the four-bar parallelogram structure formed by the connecting bar A, the connecting bar B and the connecting bar C ensures that the two pressing blocks arranged on the connecting bar B do not form obstruction to the insertion of the wire copper core into the wire connecting groove. When the copper core of the electric wire is to be separated from the wiring groove under vibration, the four-bar linkage parallelogram structure formed by the connecting bar A, the connecting bar B and the connecting bar C can drive the two pressing blocks to further compress the copper core of the electric wire under the action of the two volute springs A, so that the copper core of the electric wire is prevented from being separated from the wiring groove. Meanwhile, the ratchet wheel is matched with the limiting rod to separate the copper core of the electric wire from the wiring groove to form a barrier, and the phenomenon that the copper core of the electric wire inserted into the wiring groove is loose to cause poor contact under external vibration is avoided.

The wire connecting and disconnecting device disclosed by the invention has the advantages that the wire connecting and disconnecting are realized without the participation of tools such as a screwdriver and the like, the operation is simple and easy, the compression degree of the wire copper core inserted into the wire connecting groove cannot be different from person to person, and the wire connecting and disconnecting device has higher fastening performance. The invention has simple structure and better use effect.

Drawings

FIG. 1 is a schematic diagram of the electrical control components of the present invention.

FIG. 2 is a schematic cross-sectional view of the invention in cooperation with a copper core of an electrical wire inserted into a wiring slot in an electrical control component.

FIG. 3 is a cross-sectional view of the press block, the copper core of the wire and the copper contact piece.

FIG. 4 is a schematic cross-sectional view of the U-bar, the pressing block and the copper core.

FIG. 5 is a cross-sectional view of the ratchet, the lever A, the trigger lever, the lever A, the lever B, the collar, the lever C, the lever B, the position-limiting lever, and the sheath.

FIG. 6 is a cross-sectional view of the ratchet, the shaft A and the volute spring A.

FIG. 7 is a cross-sectional view of the gear ring, the shaft B and the coil spring B.

Fig. 8 is a schematic cross-sectional view of an electrical control element and its components.

Figure 9 is a schematic diagram of two pressing blocks from two perspectives.

Number designation in the figures: 1. an electrical control element; 2. a wiring slot; 3. a movable groove A; 4. a circular groove A; 5. a chute A; 6. a movable groove B; 7. a circular groove B; 8. a chute B; 9. a circular groove C; 10. a circular groove D; 12. a copper contact; 13. a rotating shaft A; 14. a volute spring A; 15. a ratchet wheel; 16. a ratchet A; 17. a deflector rod A; 18. a connecting rod A; 19. a connecting rod B; 20. a connecting rod C; 21. a strut; 22. a U-bar; 23. a plate spring A; 24. a pressing block; 25. an arc surface A; 26. a ratchet B; 27. an arc surface B; 28. a guide plate; 29. a plate spring B; 30. a limiting rod; 31. a guide block; 32. a pulling plate B; 33. a jacket; 34. a guide groove; 35. a spring A; 36. a synchronization lever; 37. a spring B; 38. a trigger lever; 39. a button; 40. a plate A is poked; 41. a deflector rod B; 42. sleeving a ring; 43. a rotating shaft B; 44. a volute spring B; 45. a deflector rod C; 46. an electric wire; 47. a copper core; 48. and an arc surface C.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1 and 2, the electric control device comprises an electric control element 1, a rotating shaft a13, a volute spring a14, a ratchet 15, a shifting lever a17, a connecting rod a18, a connecting rod B19, a connecting rod C20, a U rod 22, a plate spring a23, a pressing block 24, a plate spring B29, a limiting rod 30, a shifting plate B32, an outer sleeve 33, a spring a35, a spring B37, a trigger rod 38, a shifting plate a40, a shifting lever B41, a rotating shaft B43, a volute spring B44 and a shifting lever C45, wherein as shown in fig. 2, 6 and 8, a movable groove A3 is formed in the inner wall of a wiring groove 2 of the electric control element 1, a rotating shaft a13 is rotatably matched with the circular groove a4 in the inner wall of the movable groove A3, and the ratchet 15 is mounted on the rotating shaft a 13; a scroll spring A14 for resetting the rotating shaft A13 is arranged on the rotating shaft A13; the tail ends of a connecting rod A18 arranged on the ratchet wheel 15 and a connecting rod B19 swinging around a fixed axis are respectively hinged with two ends of a connecting rod C20, and the connecting rod C20 is always parallel to the copper core 47 of the electric wire 46 inserted into the wire connecting groove 2; the tail end of the strut 21 which is perpendicular to the connecting rod C20 is hinged with a U rod 22 which is positioned on the same vertical central plane with the connecting rod C20 through a round pin which is parallel to the rotating shaft A13; two tail ends of the U rod 22 are respectively hinged with a pressing block 24 matched with a copper core 47 of an electric wire 46 inserted into the wiring groove 2, and the pressing block 24 swings relative to the U rod 22 around a fixed axis parallel to the rotating shaft A13; two leaf springs A23 for resetting the U rod 22 are symmetrically arranged between the U rod 22 and the connecting rod C20, and two leaf springs B29 for resetting the U rod are symmetrically arranged between the pressing block 24 and the U rod 22.

As shown in fig. 2, 5 and 8, an outer sleeve 33 slides in a sliding groove a5 on the inner wall of the movable groove A3 along a direction perpendicular to the rotating shaft a13, a limiting rod 30 slides in the outer sleeve 33 along a direction perpendicular to the rotating shaft a13, and a spring a35 for resetting the limiting rod 30 is arranged in the outer sleeve 33; a sharp corner at one end of the limiting rod 30, which plays a role of a pawl, is matched with the ratchet A16 on the ratchet wheel 15; a trigger rod 38 which is integrally connected with the outer sleeve 33 and is matched with a shift lever A17 arranged on the ratchet wheel 15 is arranged in a sliding groove B8 on the side wall of the movable groove A3 in a sliding way along the direction vertical to the rotating shaft A13, and a spring B37 for resetting the trigger rod 38 is arranged in the electric control element 1; as shown in fig. 5, 7 and 8, a rotating shaft B43 parallel to the rotating shaft a13 is rotatably fitted in a circular groove B7 on the side wall of a movable groove B6 communicating the sliding groove a5 and the sliding groove B8, and a volute spring B44 for resetting the rotating shaft B43 is nested on the rotating shaft B43; a deflector rod C45 and a deflector rod B41 are arranged on the rotating shaft B43; the shift lever C45 is matched with a shift plate B32 arranged on the limiting rod 30, and the shift lever B41 is matched with a shift plate A40 arranged on the trigger rod 38.

As shown in fig. 2, 5 and 8, the L-shaped copper contact 12 matched with the copper core 47 of the electric wire 46 is arranged in the wiring slot 2 on the electric control element 1; the outer sleeve 33 is connected with the trigger rod 38 through the synchronous rod 36 which moves in the movable groove B6; the spring B37 is an extension spring; the spring B37 is positioned in a round groove C9 on the inner wall of the movable groove B6; one end of the spring B37 is connected with the inner wall of the circular groove C9, and the other end is connected with the synchronizing rod 36.

As shown in fig. 2, 5 and 8, a circular groove D10 communicating with the outside of the electric control element 1 is formed on the inner wall of the sliding groove B8, and the manual button 39 installed at the end of the trigger lever 38 is movably arranged in the circular groove D10; two guide blocks 31 are symmetrically arranged on the limiting rod 30, and the two guide blocks 31 respectively slide in two guide grooves 34 on the inner wall of the outer sleeve 33. The engagement of the guide block 31 with the guide groove 34 plays a positioning and guiding role in the sliding of the stopper rod 30 in the housing 33. The spring A35 is a compression spring; one end of the spring A35 is connected with the inner wall of the outer sleeve 33, and the other end is connected with the end face of the limiting rod 30.

As shown in fig. 2 and 3, one end of the plate spring a23 is connected to the U-bar 22, and the other end is connected to the link C20; one end of the plate spring B29 is connected with a corresponding side wall of the U rod 22, and the other end is connected with a corresponding press block 24; as shown in fig. 5 and 7, a ring sleeve 42 is fixedly arranged on the rotating shaft C; the shift lever B41 and the shift lever C45 are both fixed on the ring sleeve 42. The presence of collar 42 effectively increases the lateral dimensions of shifter lever C45 and shifter lever B41, thereby increasing the strength of shifter lever C45 and shifter lever B41.

As shown in fig. 3 and 9, the end face of the pressing block 24 is provided with an arc surface a25 matched with the copper core 47 of the wire 46, and arc-shaped ratchets B26 uniformly distributed along the central axis of the arc surface a25 are densely distributed. The cambered surface A25 effectively increases the action area of the pressing block 24 and the copper core 47 of the wire 46, so that the friction force between the pressing block 24 and the copper core 47 of the wire 46 is increased, meanwhile, an effective binding effect is formed on the multi-strand copper core 47, and the plugging failure of the wire 46 in the limit releasing groove due to scattering of the multi-strand copper core 47 in the extrusion process of the pressing block 24 is avoided. The ratchet teeth B26 densely distributed on the cambered surface A25 can further increase the friction between the pressing block 24 and the copper core 47 of the electric wire 46, and simultaneously can effectively prevent the copper core 47 of the electric wire 46 from reversely separating from the wire connecting slot 2 under the low pressure of the pressing block 24. As shown in fig. 3, 4 and 9, both ends of the U-bar 22 have an outwardly convex curved surface C48 with an arc of 180 degrees; the cambered surface C48 is rotationally matched with the concave cambered surface B27 on the end surface of the corresponding pressing block 24, so that the pressing block 24 is effectively rotationally matched with one tail end of the U-shaped rod 22 around a fixed rotation axis. As shown in fig. 2, 3 and 9, a guide plate 28 for guiding the copper core 47 of the electric wire 46 to penetrate into the wire connecting slot 2 is arranged at the side end of each pressing block 24 close to the notch of the wire connecting slot 2.

The electrical control element 1 in the present invention is a fuse, a circuit breaker or an electrical switch of the prior art.

The working process of the invention is as follows: in the initial state, the wire 46 copper core 47 is inserted into each wiring slot 2 of the electrical control element 1, the plate spring a23 and the plate spring B29 in each wiring slot 2 are in a compressed state, the pressing block 24 in each wiring slot 2 is parallel to the connecting rod C20, the vortex spring a14 and the vortex spring B44 are in a compressed state, and the relative distance between the two pressing blocks 24 and the side wall of the copper contact 12 is minimum and smaller than the diameter of the wire 46 copper core 47.

In the initial state, the outer sleeve 33 is contracted to the limit position in the corresponding sliding groove A5, the synchronizing rod 36 is contracted to the limit position in the corresponding movable groove B6, the button 39 protrudes out of the corresponding circular groove D10, the sharp corner at one end of the limiting rod 30 is meshed with the ratchet A16 on the corresponding ratchet wheel 15, the shift lever B41 is contacted and abutted with the shift plate A40 on the corresponding trigger rod 38 under the action of two spiral springs B44, the shift plate B32 on the limiting rod 30 is contacted and abutted with the shift lever C45 under the action of the corresponding spring A35, and the tail end of the trigger rod 38 is at a certain distance from the shift lever A17 mounted on the ratchet wheel 15.

When the copper core 47 of the wire 46 is inserted into the wiring slot 2, because the distance between the two pressing blocks 24 and the copper contact 12 is smaller than the diameter of the copper core 47 of the wire 46, and because the end of each pressing block 24 close to the notch of the wiring slot 2 is provided with the guide plate 28 which guides the stranded wire 46 copper core 47 of the twisted wire 46 into the space between the two pressing blocks 24 and the copper contact 12, the copper core 47 of the wire 46 is guided by the guide plate 28 to enter the space between the pressing blocks 24 and the copper contact 12, and simultaneously the two pressing blocks 24 are retracted into the movable slot along the direction vertical to the wire 46. The two pressing blocks 24 simultaneously drive the connecting rod C20 which is always kept vertical to perform self-adaptive translation through the U rod 22 and the supporting rod 21, and the connecting rod C20 drives the connecting rod B19 and the connecting rod A18 to swing in a passing mode.

The connecting rod A18 drives the rotating shaft A13 and the ratchet wheel 15 arranged on the rotating shaft A13 to synchronously rotate, the two volute springs A14 are further compressed, the limiting rod 30 playing a role of a pawl does not limit the rotation of the ratchet wheel 15, and the ratchet wheel 15 drives the shift lever A17 to swing in the direction away from the trigger rod 38. The limiting rod 30 is jumped under the combined action of the ratchet teeth on the ratchet wheel 15 and the spring A35.

When the copper core 47 of the electric wire 46 is completely inserted into the wire connecting slot 2, the movement of the two pressing blocks 24 is stopped, and the connecting rod A18 and the connecting rod B19 drive the two pressing blocks 24 to tightly press the copper core 47 of the electric wire 46 through the connecting rod C20, the supporting rod 21 and the U rod 22 under the reset action of the two volute springs A14.

When the copper core 47 of the electric wire 46 that has been completely inserted into the wire connection slot 2 is pulled out of the wire connection slot 2, the copper core 47 of the electric wire 46 will drive the connecting rod B19 and the connecting rod a18 to swing through the two pressing blocks 24, the U-rod 22, the supporting rod 21 and the connecting rod C20, and the connecting rod a18 will drive the ratchet 15 to rotate synchronously through the rotating shaft a 13. At this time, the limiting rod 30 limits the rotation of the ratchet wheel 15, and in turn, the connecting rod a18 and the connecting rod B19 drive the two pressing blocks 24 to keep tightly pressing against the copper core 47 of the electric wire 46 through the connecting rod C20, the supporting rod 21 and the U-rod 22, so that the copper core 47 of the electric wire 46 inserted into the wiring slot 2 is prevented from loosening under the action of external force, and poor contact or circuit disconnection caused by the fact that the copper core 47 of the electric wire 46 is separated from the wiring slot 2 under the action of external force is avoided.

When the surface of the copper core 47 of the electric wire 46 is not smooth and flat, the insertion of the copper core 47 of the electric wire 46 into the wiring slot 2 can cause the pressing block 24 to swing around the round end of one corresponding U rod 22, meanwhile, the U rod 22 can also swing around the hinge point of the U rod 22 and the support rod 21 in a certain degree of self-adaptation under the action of the copper core 47 of the electric wire 46, the leaf spring B29 for keeping the resetting of each pressing block 24 and the two leaf springs A23 for keeping the resetting of the U rod 22 can both deform in a self-adaptation manner, and it is ensured that the pressing block 24 which is in uneven contact with the copper core 47 of the electric wire 46 still has enough area to be in pressing contact with the copper core 47 of the electric wire 46, and one of the U rods 22 drives the other pressing block 24 to further tightly press the copper core 47 of the electric wire 46.

When the copper core 47 of the electric wire 46 needs to be actively pulled out of the wiring slot 2, the corresponding button 39 is pressed into the round slot D10, the button 39 drives the trigger rod 38 to slide towards the shift lever a17, the trigger rod 38 drives the outer sleeve 33 to synchronously move through the synchronous rod 36, and the spring B37 is further stretched. The shifting plate A40 arranged on the trigger rod 38 drives the rotating shaft B43 and the shifting rod C45 to rotate and swing through the shifting rod B41 and the ring sleeve 42, the two spiral springs B44 are further compressed, the shifting rod C45 drives the limiting rod 30 to move in the direction away from the ratchet wheel 15 along the radial direction of the ratchet wheel 15 through the shifting plate B32, the limiting rod 30 playing a pawl role is separated from the ratchet wheel 15 and quickly releases the rotation limitation on the ratchet wheel 15, the limiting rod 30 moves opposite to the outer sleeve 33, the limiting rod 30 retracts towards the inner sleeve 33, and the spring A35 is further compressed.

When the limiting rod 30 is disengaged from the ratchet wheel 15 and the rotation limitation of the ratchet wheel 15 is released, the trigger rod 38 starts to meet the shift lever a17 on the ratchet wheel 15 and drives the ratchet wheel 15 to rotate through the shift lever a17, the ratchet wheel 15 drives the rotating shaft a13 and the connecting rod a18 to rotate and swing, and the two volute springs a14 are further compressed at the same time. The connecting rod A18 drives the connecting rod B19 to swing through the connecting rod C20, and the connecting rod C20 drives the two pressing blocks 24 to translate towards the movable groove A3 through the supporting rod 21 and the U-shaped rod 22 and releases the pressing on the copper core 47 of the electric wire 46.

When the two pressing blocks 24 release the pressing on the copper core 47 of the electric wire 46, the copper core 47 of the electric wire 46 can be directly pulled out of the wiring slot 2, and then the copper core 47 of the electric wire 46 can be removed from the electric control element 1.

When the copper core 47 of the electric wire 46 is detached from the wiring slot 2, the press on the button 39 is removed, the synchronizing rod 36 drives the outer sleeve 33 and the trigger rod 38 to synchronously and quickly reset under the reset action of the spring B37, the rotating shaft B43 drives the ring sleeve 42, the shifting rod B41 and the shifting rod C45 to swing back and rotate to reset under the reset action of the two spiral springs B44, and the limiting rod 30 resets under the reset action of the spring a 35. The rotating shaft A13 drives the ratchet wheel 15 to reset and rotate under the reset action of the two scroll springs A14, the ratchet wheel 15 drives the shifting rod A17 and the connecting rod A18 to swing back and reset, the connecting rod A18 drives the connecting rod B19 to swing back and reset through the connecting rod C20, and the translating connecting rod C20 drives the two pressing blocks 24 to translate and reset towards the direction close to the copper contact 12 through the supporting rod 21 and the U rod 22.

When the ratchet wheel 15 drives the shift lever a17 to complete the reset, the synchronous rod 36 continues the reset motion under the action of the spring B37 and finally completes the reset, and the limiting rod 30 finally butts against the ratchet wheel 15 again and engages with the ratchet wheel.

In conclusion, the beneficial effects of the invention are as follows: the four-bar parallelogram structure formed by the connecting bar A18, the connecting bar B19 and the connecting bar C20 ensures that the two pressing blocks 24 arranged on the connecting bar B19 do not form obstruction to the insertion of the copper core 47 of the electric wire 46 into the wire connecting groove 2. When the copper core 47 of the electric wire 46 is about to be separated from the wire connecting slot 2 under vibration, the four-bar parallelogram structure formed by the connecting bar a18, the connecting bar B19 and the connecting bar C20 drives the two pressing blocks 24 to further press the copper core 47 of the electric wire 46 under the action of the two volute springs a14, so that the copper core 47 of the electric wire 46 is prevented from being separated from the wire connecting slot 2. Meanwhile, the matching of the ratchet wheel 15 and the limiting rod 30 hinders the separation of the copper core 47 of the electric wire 46 from the wiring groove 2, and the phenomenon that the copper core 47 of the electric wire 46 inserted into the wiring groove 2 is loosened to cause poor contact under the external vibration is avoided.

The invention has the advantages that the connection and the disconnection are realized without the participation of tools such as a screwdriver and the like, the operation is simple and easy, the compression degree of the copper core 47 of the electric wire 46 inserted into the wiring groove 2 cannot be different from person to person, and the invention has higher tightness.

Claims

1. The utility model provides a convenient electric wire plug assembly who pegs graft of electric power usefulness which characterized in that: the device comprises an electric control element, a rotating shaft A, a volute spring A, a ratchet wheel, a shifting rod A, a connecting rod B, a connecting rod C, U rod, a plate spring A, a pressing block, a plate spring B, a limiting rod, a shifting plate B, an outer sleeve, a spring A, a spring B, a trigger rod, a shifting plate A, a shifting rod B, a rotating shaft B, a volute spring B and a shifting rod C, wherein a movable groove A is formed in the inner wall of a wiring groove of the electric control element, the rotating shaft A is rotatably matched with the circular groove A in the inner wall of the movable groove A, and the ratchet wheel is installed on the rotating shaft A; a vortex spring A for resetting the rotating shaft A is arranged on the rotating shaft A; the tail ends of a connecting rod A arranged on the ratchet wheel and a connecting rod B swinging around a fixed axis are respectively hinged with two ends of a connecting rod C, and the connecting rod C is always parallel to the copper core of the electric wire inserted into the wiring groove; the tail end of the strut perpendicular to the connecting rod C is hinged with a U-shaped rod which is positioned on the same vertical central plane with the connecting rod C through a round pin parallel to the rotating shaft A; two tail ends of the U rod are respectively hinged with a pressing block matched with a copper core of the electric wire inserted into the wiring groove, and the pressing blocks swing around a fixed axis parallel to the rotating shaft A relative to the U rod; two plate springs A for resetting the U rod are symmetrically arranged between the U rod and the connecting rod C, and two plate springs B for resetting the U rod are symmetrically arranged between the pressing block and the U rod;

2. The electrical power plug-in facilitating wire plug-in assembly of claim 1, wherein: an L-shaped copper contact piece matched with the copper core of the wire is arranged in the wiring groove on the electric control element; the outer sleeve is connected with the trigger rod through a synchronous rod which is movable in the movable groove B; the spring B is an extension spring; the spring B is positioned in a circular groove C on the inner wall of the movable groove B; one end of the spring B is connected with the inner wall of the circular groove C, and the other end of the spring B is connected with the synchronizing rod.

3. An electrical plug-facilitating wire plug assembly according to claim 1, wherein: a circular groove D communicated with the outer side of the electric control element is formed in the inner wall of the sliding groove B, and a manual button arranged at the tail end of the trigger rod moves in the circular groove D; two guide blocks are symmetrically arranged on the limiting rod and respectively slide in two guide grooves on the inner wall of the outer sleeve; the spring A is a compression spring; one end of the spring A is connected with the inner wall of the outer sleeve, and the other end of the spring A is connected with the end face of the limiting rod.

4. An electrical plug-facilitating wire plug assembly according to claim 1, wherein: one end of the plate spring A is connected with the U rod, and the other end of the plate spring A is connected with the connecting rod C; one end of the plate spring B is connected with a corresponding side wall on the U rod, and the other end of the plate spring B is connected with a corresponding pressing block; a ring sleeve is fixedly arranged on the rotating shaft C; and the deflector rod B and the deflector rod C are fixedly arranged on the ring sleeve.

5. An electrical plug-facilitating wire plug assembly according to claim 1, wherein: the end face of the pressing block is provided with an arc surface A matched with the copper core of the wire, and arc-shaped ratchets B uniformly distributed along the central axis of the arc surface A are densely distributed on the arc surface A; the two tail ends of the U rod are provided with convex cambered surfaces C with radian of 180 degrees; the cambered surface C is rotationally matched with the concave cambered surface B on the end surface of the corresponding pressing block; and guide plates for guiding the copper cores of the electric wires to go deep into the wiring grooves are arranged at the side ends, close to the notch of the wiring grooves, of each pressing block.