A connection device for EVC charging pile line

Abstract

The present invention discloses a connection device for an EVC charging pile line, belonging to the technical field of wire connection devices, comprising a box body, the bottom of the box body is an opening, and through holes are provided at both end faces of the box body, an annular plate is arranged at the inner end face of the box body, and a support strip and a pressure strip are arranged at the end face of the annular plate away from the box body, a plurality of push blocks are elastically arranged at the inner wall of the support strip, and a cutter is elastically arranged at the inner side face of the pressure strip; through the provided limiting component, the annular plate can be moved outward after rotating several circles, so as to tear off the sheath on the wire, which is conducive to the contact between the contact piece on the annular plate and the exposed core wire, and then the wires at both ends of the box body are connected, and through this structure, the core wire can be avoided from being damaged during cutting, which is conducive to prolonging the stability of the wire connection, and the contact area between the contact piece and the core wire is large, so that the electrical connection is more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of electric wire connection devices, and in particular to an EVC charging pile wire connection device. Background Art

[0002] The cost of traditional wire connection methods is mostly labor cost. Under the expectation of a sharp increase in labor cost, decoration and renovation companies, real estate construction companies, etc. are trying to find ways or tools to save labor cost in order to reduce costs.

[0003] Chinese patent CN204464505U discloses a new type of stripping-free wire quick connector. The device has an ingenious structural design. It only takes two simple steps to quickly and perfectly connect a group of wires within a few seconds. Moreover, by using transparent plastic, it is easy to check whether the wire connection is reliable, which is faster, simpler, more labor-saving and user-friendly operation and safer and more reliable connection.

[0004] The device uses a metal block to cut the outer sheath of the wire, but it is easy to accidentally damage the core wire during actual use. If the sheath on the wire is cut by the metal block, the metal block is a thinner sheet structure. At this time, the contact between the metal block and the core wire to conduct the wires at both ends is unstable. In summary, the above device still has room for improvement.

[0005] Therefore, it is necessary to provide a connection device for an EVC charging pile line to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a connection device for an EVC charging pile line, so as to solve the problem that the sheath on the outside of the electric wire is cut by a metal clamp block in the prior art proposed in the above-mentioned background technology, but the core wire is easily damaged by mistake during actual use. If the sheath on the electric wire is cut by a metal clamp block, the metal clamp block is a thinner sheet structure. At this time, the contact between the metal clamp block and the core wire to conduct the electric wires at both ends has a certain instability problem.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a connection device for an EVC charging pile line, comprising a box body, the bottom of the box body is an opening, and through holes are provided at both end faces of the box body, an annular plate is arranged at the inner end face of the box body, and a support bar and a pressure strip are arranged at the end face of the annular plate away from the box body, a plurality of push blocks are elastically arranged at the inner wall of the support bar, a cutting knife is elastically arranged at the inner side face of the pressure strip, a contact piece is fixedly arranged on the inner side face of the annular plate, a driving assembly for driving the annular plate to rotate is arranged on the outer side of the annular plate, the annular plate and the box body are matched through a limiting assembly, and the limiting assembly makes the annular plate move in a direction away from the end face of the box body after rotating several circles.

[0008] As a further solution of the present invention: a mounting hole is provided at the inner end surface of the box body, the mounting hole is coaxially arranged with the through hole, and the annular plate is rotatably arranged in the mounting hole.

[0009] As a further solution of the present invention: the driving assembly includes a ring mounted on the outside of the annular plate, a sliding rod is fixedly arranged on the inner wall of the ring, and a sliding groove that slides with the sliding rod is opened on the outer circumferential surface of the annular plate, and a second coil spring is mounted on the outside of the ring, and the two ends of the second coil spring are respectively connected to the box body and the ring.

[0010] As a further solution of the present invention: the limit assembly includes a limit block arranged on the outer circumference of the annular plate and elastically connected thereto, a vertical rod is fixedly arranged on the bottom surface of the limit block, a rotating shaft is rotatably arranged on the annular plate, a gear is fixedly arranged on one end of the rotating shaft passing through the annular plate, and a pressure plate is fixedly connected to one end of the rotating shaft located in the annular plate, the bottom end of the vertical rod is in contact with the outer circumference of the pressure plate, and the pressure plate is eccentrically arranged with the rotating shaft, a first coil spring is sleeved on the outer side of the rotating shaft, and the two ends of the first coil spring are respectively connected to the annular plate and the rotating shaft, a plurality of latch teeth are fixedly arranged on the outer circumference of the pressure plate, and the latch teeth are inclined, and a rack meshing with the gear is fixedly arranged on the inner end surface of the mounting hole.

[0011] As a further solution of the present invention: a circular guide groove and a spiral limit groove are provided on the inner wall of the mounting hole, the limit groove is connected to the guide groove, and a guide plate is provided at the intersection of the guide groove and the limit groove, the depth of the guide groove is the same as that of the limit groove, and the height of the guide plate is less than the depth of the guide groove.

[0012] As a further solution of the present invention: a bottom plate is elastically provided at the inner bottom end of the box body, support plates are fixedly provided on both sides of the top of the bottom plate, a positioning block is fixedly provided on one side of the support plate close to the annular plate, and a positioning groove is provided on the outer side surface of the annular plate to slide with the positioning block.

[0013] As a further solution of the present invention: a slider is fixedly provided on the side of the pressure strip close to the annular plate, and a strip groove that slidably cooperates with the slider is opened on the outer surface of the annular plate. The cross-sections of the strip groove and the slider are both set to be T-shaped, and a notch is opened on the side of the strip away from the pressure strip, and a protrusion that cooperates with the notch is elastically arranged on the slider.

[0014] As a further solution of the present invention: L-shaped brackets are fixedly provided on both sides of the top of the bottom plate, a boss is fixedly provided on the inner wall of the box body, and a support spring is fixedly provided between the boss and the bracket.

[0015] As a further solution of the present invention: the end surface of one end of the push block away from the support bar is arranged inclined.

[0016] As a further solution of the present invention: a push rod is fixedly provided on the end surface of the annular plate close to the gear.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: this device can drive the cutter to rotate around the wire through the provided driving assembly, thereby cutting the sheath on the wire. During the cutting process, the cutter and multiple push blocks can be inserted into the cut mark. Through the provided limiting assembly, the annular plate can move outward after rotating several circles, thereby tearing off the sheath on the wire, which is beneficial for the contact piece on the annular plate to contact with the exposed core wire, and then connect the wires at both ends of the box body. Through this structure, the core wire can be avoided from being damaged during cutting, which is beneficial to prolonging the stability of the wire connection, and the contact area between the contact piece and the core wire is large, making the electrical connection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a sectional view of a box body of the present invention;

[0021] Figure 3 It is a schematic diagram of the support and boss structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the layering strip and the supporting strip of the present invention;

[0023] Figure 5 It is a schematic diagram of the limiting groove structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the guide plate structure of the present invention;

[0025] Figure 7 The present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0026] Figure 8 The present invention Figure 2 A schematic diagram of the enlarged structure at B;

[0027] Fig. 9 It is a schematic diagram of the structure of the slider and the bump of the present invention;

[0028] Fig.10 It is a schematic diagram of the card block structure of the present invention;

[0029] Fig.11 It is a schematic diagram of the cooperation between the pressure plate and the vertical rod of the present invention;

[0030] Fig.12 is a schematic diagram of the contact sheet structure of the present invention;

[0031] Fig.13 It is a schematic diagram of the rack structure of the present invention;

[0032] Fig.14 It is a schematic diagram of the structure of the first annular groove and the second annular groove of the present invention.

[0033] In the figure: 1, box body; 101, guide groove; 102, limit groove; 103, mounting hole; 104, first annular groove; 105, second annular groove; 2, pressing ring; 3, clamping groove; 4, bottom plate; 5, connecting pipe; 6, protrusion; 7, pressing block; 8, annular plate; 9, collar; 10, wire; 11, clamping block; 12, boss; 13, bracket; 14, clamping teeth; 15, support bar; 16 , push block; 17, pressure strip; 18, cutter; 19, support plate; 20, guide plate; 21, slide groove; 22, slide rod; 23, limit block; 24, gear; 25, shaft; 26, first coil spring; 27, pressure plate; 28, slider; 29, contact piece; 30, notch; 31, push rod; 32, rack; 33, positioning block; 34, vertical rod; 35, protrusion; 36, second coil spring. DETAILED DESCRIPTION

[0034] like Figure 1-4 As shown in , 8 and 12, an EVC charging pile wire connection device comprises a box body 1, the bottom of the box body 1 is in an open state, and through holes are provided at both end faces of the box body 1 to facilitate the insertion of wires into the box body 1 through the through holes;

[0035] An annular plate 8 is provided at the inner end surface of the box body 1, the annular plate 8 is coaxially arranged with the through hole, and an arc-shaped support strip 15 and a pressure strip 17 are provided at the end surface of the annular plate 8 away from the box body 1. Figure 4 As shown, the support bar 15 is located above the pressure bar 17, and the support bar 15 is fixedly connected to the annular plate 8, the support bar 15 is flush with the inner circumferential wall of the annular plate 8, and a plurality of push blocks 16 are evenly distributed on the inner wall of the support bar 15, the push blocks 16 are elastically connected to the support bar 15, and a cutter 18 is elastically provided on the inner side surface of the pressure bar 17. When the wire passes through the through hole into the interior of the box body 1, the pressure bar 17 is pushed in the direction close to the support bar 15, so that the cutter 18 can be inserted into the sheath wrapped around the outside of the wire, and then, as the annular plate 8 drives the pressure bar 17 to rotate around the wire, the sheath on the outside of the wire can be cut.

[0036] A driving assembly is provided on the outer side of the annular plate 8 to facilitate driving the annular plate 8 to rotate, and the annular plate 8 and the box body 1 are matched through a limiting assembly. In actual use, the driving assembly can drive the annular plate 8 and the pressure strip 17 on one side thereof to rotate, and the cutter 18 on the pressure strip 17 can be used to cut the sheath on the outside of the wire, and the limiting assembly can make the annular plate 8 rotate several times and move in a direction away from the end face of the box body 1, which is beneficial to push out the sheath after cutting. Of course, in actual application, a contact piece 29 is fixedly provided on the inner side surface of the annular plate 8, and the contact piece 29 is located on the side of the cutter 18 close to the annular plate 8. When the cut sheath is pushed away, the contact piece 29 on one side of the annular plate 8 can contact the exposed core wire, which is beneficial to conduct the wires at both ends of the box body 1. The contact piece 29 is made of copper sheet.

[0037] like Figure 1-8 As shown in FIGS. 11 and 13 , in order to install the annular plate 8 , a mounting hole 103 is opened at the inner end surface of the box body 1 . The mounting hole 103 is coaxially arranged with the through hole, and the annular plate 8 is rotatably arranged in the mounting hole 103 .

[0038] The above-mentioned driving assembly includes a ring 9 sleeved on the outside of the annular plate 8, a sliding rod 22 is fixedly arranged on the inner wall of the ring 9, and a sliding groove 21 that slides with the sliding rod 22 is opened on the outer circumferential surface of the annular plate 8. Through this structure, the ring 9 can synchronously drive the annular plate 8 to rotate, and the annular plate 8 can also slide relative to the ring 9. A second coil spring 36 is sleeved on the outside of the ring 9, and the two ends of the second coil spring 36 are respectively connected to the box body 1 and the ring 9, so as to drive the ring 9 to rotate.

[0039] The limiting assembly includes a limiting block 23 which is arranged on the outer circumference of the annular plate 8 and is elastically connected thereto, a vertical rod 34 is fixedly arranged on the bottom surface of the limiting block 23, a rotating shaft 25 is rotatably arranged at the outer end surface of the annular plate 8, a gear 24 is fixedly arranged on one end of the rotating shaft 25 which passes through the annular plate 8, and a pressure plate 27 is fixedly connected to one end of the rotating shaft 25 located inside the annular plate 8, the bottom end of the vertical rod 34 is in contact with the outer circumference of the pressure plate 27, the pressure plate 27 and the rotating shaft 25 are eccentrically arranged, that is, the axis of the pressure plate 27 and the axis of the rotating shaft 25 are not on the same straight line, so that in the process of the rotating shaft 25 driving the pressure plate 27 to rotate, the pressure plate 27 can be used to drive the vertical rod 34 to move upward;

[0040] Furthermore, a first coil spring 26 is sleeved on the outer side of the rotating shaft 25, and the two ends of the first coil spring 26 are respectively connected to the annular plate 8 and the rotating shaft 25, and a plurality of latch teeth 14 are fixedly arranged on the outer peripheral surface of the pressure plate 27, and the latch teeth 14 are arranged obliquely, so that the pressure plate 27 can only rotate in one direction relative to the vertical rod 34;

[0041] Furthermore, a rack 32 meshing with the gear 24 is fixedly provided on the inner end face of the mounting hole 103. The rack 32 is arranged in an arc shape so that the center of the rack 32 is in the same straight line as the axis of the annular plate 8, so that when the annular plate 8 rotates, the gear 24 on the rotating shaft 25 can mesh with the rack 32.

[0042] In order for the annular plate 8 to move away from the end surface of the box body 1 after rotating several times, an annular guide groove 101 and a spiral limiting groove 102 are provided on the inner wall of the mounting hole 103. Figure 5-6 As shown, the limiting groove 102 is connected to the guide groove 101, and a guide plate 20 is provided at the intersection of the guide groove 101 and the limiting groove 102, and the guide plate 20 is in a state of being nearly parallel to the limiting groove 102, so that the limiting block 23 can slide along the guide plate 20 into the limiting groove 102, and the guide plate 20 is fixedly connected to the box body 1. Specifically, the depth of the guide groove 101 and the limiting groove 102 is the same, and the height of the guide plate 20 is less than the depth of the guide groove 101. Preferably, the guide plate The height of 20 is 1 / 3 of the depth of the guide groove 101. During specific use, as the annular plate 8 rotates, the gear 24 will mesh with the rack 32 multiple times, thereby driving the rotating shaft 25 to rotate intermittently. The pressure plate 27 can gradually drive the vertical rod 34 and the limit block 23 to move outward. When the limit block 23 intersects with the guide plate 20, the annular plate 8 is rotating, and the limit block 23 can slide along the guide plate 20 into the limit groove 102, thereby causing the annular plate 8 to move in a direction away from the end face of the box body 1.

[0043] In the initial state, in order to position the annular plate 8, a bottom plate 4 is elastically provided at the inner bottom end of the box body 1, and support plates 19 are fixedly provided on both sides of the top of the bottom plate 4. The top of the support plate 19 is an arc-shaped structure to facilitate fitting with the pressure strip 17. A positioning block 33 is fixedly provided on the side of the support plate 19 close to the annular plate 8, and a positioning groove is provided on the outer surface of the annular plate 8 to slide with the positioning block 33, and one end of the positioning groove extends to the outer circumferential surface of the annular plate 8.

[0044] In addition, in order to ensure that the pressure strip 17 and the annular plate 8 can be stably connected, a slider 28 is fixedly provided on the side of the pressure strip 17 close to the annular plate 8, and a strip groove that slidably cooperates with the slider 28 is opened on the outer surface of the annular plate 8, and the cross-sections of the strip groove and the slider 28 are both set to be T-shaped. Furthermore, a notch 30 is opened on the side of the strip groove away from the pressure strip 17, and a protrusion 35 that cooperates with the notch 30 is elastically provided on the slider 28.

[0045] In actual use, the two sections of wires to be connected are respectively inserted from both sides of the box body 1 and passed through the annular plate 8, and the bottom plate 4 is pressed toward the inside of the box body 1. The pressure strip 17 can be driven to gradually approach the support strip 15 through the support plate 19. When the slider 28 on the pressure strip 17 slides to a state aligned with the notch 30, the protrusion 35 will pop out and insert into the notch 30. At this time, the pressure strip 17 will be locked with the annular plate 8, and the cutter 18 is squeezed with the sheath wrapped around the outside of the wire, so that one end of the cutter 18 can cut into the sheath, and then the bottom plate 4 and the support plate 19 are pulled downward, so that the positioning block 33 on the support plate 19 is moved out of the positioning groove, so that the support plate 19 loses its The ring plate 8 is limited. At this time, the ring 9 can be driven to rotate under the action of the second coil spring 36, and then the ring 9 can drive the ring plate 8 to rotate through the cooperation of the slide bar 22 and the slide groove 21. In this process, the cutter 18 will rotate around the wire to facilitate cutting the sheath on the outside of the wire. As the cutting progresses, the cut formed by the cutter 18 on the sheath gradually deepens. Due to the existence of the cut, one end of the push block 16 on the support bar 15 will be inserted into the cut. At this point, the cutter 18 and one end of the plurality of push blocks 16 are all placed inside the cut. As the ring plate 8 continues to rotate, the sheath is in a state of being disconnected, but the cutter 18 does not contact the core wire in the sheath.

[0046] As the annular plate 8 rotates, the limit block 23 can rotate along the guide groove 101, and the gear 24 on one side of the limit block 23 can mesh with the rack 32 on the end face of the mounting hole 103 during the rotation process, thereby driving the gear 24 to rotate. The gear 24 can drive the pressure plate 27 to rotate through the rotating shaft 25. Since the pressure plate 27 and the rotating shaft 25 are eccentrically arranged, the pressure plate 27 can be squeezed with the vertical rod 34 during the rotation process, thereby driving the vertical rod 34 and the limit block 23 to move outward for a distance. Due to the arrangement of the latch teeth 14, the pressure plate 27 can only rotate in one direction relative to the vertical rod 34, and the cooperation with the first coil spring 26 is conducive to ensuring the stability of the rotating shaft 25 and the pressure plate 27. Through the above structure, the annular plate 8 can rotate one direction every time it rotates. When the ring plate 8 is rotated, the pressure plate 27 can drive the limit block 23 to move outward for a distance. When the limit block 23 is coplanar with the guide plate 20, the limit block 23 will slide along the guide plate 20 into the limit groove 102 during the rotation of the annular plate 8. The limit groove 102 is set in a spiral shape, so that when the limit block 23 slides along the limit groove 102, the annular plate 8 can move in a direction away from the end face of the box body 1, and the cutter 18 and multiple push blocks 16 are all placed in the cut. Therefore, when the annular plate 8, the support bar 15 and the pressure bar 17 move outward, the wire sheath that is about to fall off can be torn off, thereby exposing the core wire in the sheath, and as the annular plate 8 moves, the contact piece 29 on the annular plate 8 can contact the exposed core wire, such as Figure 2As shown, a wire 10 is connected between the two annular plates 8. In actual application, the annular plates 8 are made of conductive metals such as copper or silver, so that after the contact piece 29 contacts the core wire, the wires at both ends of the box body 1 can be connected to each other.

[0047] To sum up, this device can drive the cutter 18 to rotate around the wire through the driving component, so as to cut the sheath on the wire. During the cutting process, the cutter 18 and multiple push blocks 16 can be inserted into the cut. Through the limit component, the annular plate 8 can move outward after rotating several circles, so as to tear off the sheath on the wire, which is conducive to the contact piece 29 on the annular plate 8 to contact with the exposed core wire, and then connect the wires at both ends of the box body 1. This structure can avoid damaging the core wire during cutting, which is conducive to prolonging the stability of the wire connection. In addition, the contact area between the contact piece 29 and the core wire is large, making the electrical connection more stable.

[0048] like Figure 1-2 As shown, in order to stably connect the wires to the box body 1, connecting tubes 5 are fixedly provided on both end faces of the box body 1, the connecting tubes 5 are coaxially arranged with the through hole, and a pressing ring 2 is threadedly connected to the outer side of the connecting tube 5, and a plurality of pressing blocks 7 are elastically arranged on the connecting tube 5, and the end face of the pressing ring 2 close to the box body 1 and the end of the pressing block 7 close to the pressing ring 2 are both inclined. In actual use, when the pressing ring 2 is rotated to gradually approach the box body 1, the pressing ring 2 contacts and squeezes the pressing blocks 7, so that the plurality of pressing blocks 7 are pressed tightly on the wires to facilitate fixing the wires.

[0049] like Figure 1-3 As shown in FIG. 10 , in order to fix the bottom plate 4, blocks 11 are elastically provided on both sides of the bottom plate 4, and a card slot 3 matching with the block 11 is provided on the inner side of the box body 1. A pull rod is fixedly provided at the bottom of the bottom plate 4 to facilitate the up and down movement of the bottom plate 4. When the bottom plate 4 is pulled downward to align the block 11 with the card slot 3, the block 11 will pop out and be inserted into the card slot 3, so as to lock the bottom plate 4.

[0050] Furthermore, circular holes are provided on both sides of the bottom plate 4, and the clamping block 11 is slidably arranged in the circular hole, and a spring is fixedly arranged between the clamping block 11 and the inner end surface of the circular hole.

[0051] L-shaped brackets 13 are fixedly provided on both sides of the top of the bottom plate 4, and a boss 12 is fixedly provided on the inner wall of the box body 1. A supporting spring is fixedly provided between the boss 12 and the bracket 13 to achieve an elastic connection between the bottom plate 4 and the box body 1.

[0052] like Figure 1-2As shown in 7-9 and 14, a through groove is provided on the connecting tube 5, and the pressure block 7 is slidably arranged in the through groove, and a first groove is provided on the inner wall of the through groove, and a protrusion 6 which slides with the first groove is fixedly arranged on the pressure block 7, and a first spring is fixedly arranged between the protrusion 6 and the inner end surface of the first groove, so as to realize the elastic connection between the pressure block 7 and the connecting tube 5.

[0053] The inner wall of the pressure strip 17 and the inner wall of the support strip 15 are provided with a second groove, and the cutter 18 and the push block 16 are slidably arranged in the second groove, and a second spring is fixedly arranged between the inner end surface of the second groove and the cutter 18, and between the inner end surface of the second groove and the push block 16;

[0054] The end surface of one end of the push block 16 away from the support bar 15 is inclined so as to facilitate the push block 16 to be inserted into the cut.

[0055] The inner wall of the mounting hole 103 is provided with a second annular groove 105, and the inner end surface of the second annular groove 105 is provided with a first annular groove 104, the collar 9 is inserted into the first annular groove 104 and rotatably cooperates therewith, and the two ends of the second coil spring 36 are fixedly connected to the inner wall of the second annular groove 105 and the outer circumferential surface of the collar 9 respectively.

[0056] A connecting hole is provided on the outer peripheral surface of the annular plate 8, a limit block 23 is slidably arranged in the connecting hole, and a limit spring is fixedly arranged between the inner end surface of the connecting hole and the limit block 23, and a long strip-shaped mounting groove is provided on the inner bottom surface of the connecting hole, so that the pressure plate 27 and the vertical rod 34 are both placed in the mounting groove;

[0057] Furthermore, a circular hole is opened on one side surface of the annular plate 8 close to the gear 24 , and two ends of the first coil spring 26 are fixedly connected to the inner wall of the circular hole and the outer wall of the rotating shaft 25 respectively.

[0058] A push rod 31 is fixedly provided on the end surface of the annular plate 8 close to the gear 24 . In the initial state, the end surfaces of the rotating shaft 25 and the push rod 31 are in contact with the inner end surface of the mounting hole 103 , thereby improving the stability of the annular plate 8 .

[0059] A square groove is formed on the end surface of the slider 28 , and the protrusion 35 is slidably disposed in the square groove. A third spring is fixedly disposed between the inner end surface of the square groove and the protrusion 35 .

Claims

1. A connection device for an EVC charging pile line, comprising a box body, the bottom of the box body is open, through holes are provided at both end faces of the box body, an annular plate is provided at the inner end face of the box body, and a support bar and a pressure bar are provided at the end face of the annular plate away from the box body, a plurality of push blocks are elastically provided at the inner wall of the support bar, and a cutter is elastically provided at the inner side face of the pressure bar, characterized in that: A contact sheet is fixedly arranged on the inner side of the annular plate, and a driving assembly for driving the annular plate to rotate is arranged on the outer side of the annular plate. The annular plate and the box body are matched through a limit assembly, and the limit assembly enables the annular plate to move in a direction away from the end surface of the box body after rotating several circles; The cutter rotates around the wire to cut the sheath on the outside of the wire. As the cutting proceeds, the cut formed by the cutter on the sheath gradually deepens. Due to the existence of the cut, one end of the push block on the support bar will be inserted into the cut. At this point, the cutter and one end of the multiple push blocks are placed inside the cut. As the annular plate continues to rotate, the sheath is about to be disconnected, but the cutter does not contact the core wire in the sheath. When the annular plate, the support bar and the pressure strip move outward, the wire sheath that is about to fall off can be torn off, thereby exposing the core wire in the sheath. As the annular plate moves, the contact piece on the annular plate can contact the exposed core wire. After the contact piece contacts the core wire, the wires at both ends of the box body can be connected to each other.

2. The EVC charging pile line connection device according to claim 1, characterized in that: A mounting hole is provided at the inner end surface of the box body. The mounting hole is coaxially arranged with the through hole, and the annular plate is rotatably arranged in the mounting hole.

3. The EVC charging pile line connection device according to claim 2, characterized in that: The driving assembly includes a ring sleeved on the outer side of the annular plate, a sliding rod is fixedly arranged on the inner wall of the ring, a sliding groove for slidingly cooperating with the sliding rod is opened on the outer circumferential surface of the annular plate, a second coil spring is sleeved on the outer side of the ring, and the two ends of the second coil spring are respectively connected to the box body and the ring.

4. The EVC charging pile line connection device according to claim 3, characterized in that: The limit assembly includes a limit block which is arranged on the outer circumference of the annular plate and elastically connected thereto, a vertical rod is fixedly arranged on the bottom surface of the limit block, a rotating shaft is rotatably arranged on the annular plate, a gear is fixedly arranged on one end of the rotating shaft passing through the annular plate, a pressure plate is fixedly connected to one end of the rotating shaft located in the annular plate, the bottom end of the vertical rod is in contact with the outer circumference of the pressure plate, and the pressure plate is eccentrically arranged with the rotating shaft, a first coil spring is sleeved on the outer side of the rotating shaft, and the two ends of the first coil spring are respectively connected to the annular plate and the rotating shaft, a plurality of latch teeth are fixedly arranged on the outer circumference of the pressure plate, and the latch teeth are inclined, and a rack meshing with the gear is fixedly arranged on the inner end surface of the mounting hole.

5. The EVC charging pile line connection device according to claim 4, characterized in that: A circular guide groove and a spiral limit groove are provided on the inner wall of the mounting hole. The limit groove is connected to the guide groove, and a guide plate is provided at the intersection of the guide groove and the limit groove. The depth of the guide groove is the same as that of the limit groove, and the height of the guide plate is less than the depth of the guide groove.

6. The EVC charging pile line connection device according to claim 1, characterized in that: A bottom plate is elastically arranged at the inner bottom end of the box body, support plates are fixedly arranged on both sides of the top of the bottom plate, a positioning block is fixedly arranged on one side of the support plate close to the annular plate, and a positioning groove is opened on the outer side surface of the annular plate to slide with the positioning block.

7. The EVC charging pile line connection device according to claim 1, characterized in that: A slider is fixedly arranged on one side of the pressure strip close to the annular plate, and a strip groove slidably matched with the slider is provided on the outer side of the annular plate. The cross-sections of the strip groove and the slider are both T-shaped, and a notch is provided on the side of the strip groove away from the pressure strip, and a protrusion matching with the notch is elastically provided on the slider.

8. The EVC charging pile line connection device according to claim 6, characterized in that: L-shaped brackets are fixedly arranged on both sides of the top of the bottom plate, a boss is fixedly arranged on the inner wall of the box body, and a supporting spring is fixedly arranged between the boss and the bracket.

9. The EVC charging pile line connection device according to claim 1, characterized in that: The push block is arranged with an end face which is away from the support bar and is inclined.

10. The EVC charging pile line connection device according to claim 4, characterized in that: A push rod is fixedly arranged on the end surface of the annular plate close to the gear.

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