A quick plug connector for new energy vehicles

Abstract

The present invention relates to the technical field of automobile accessories, and in particular to a quick-plug connector for new energy vehicles, comprising a male head and a female head, wherein both ends of the male head are respectively provided with a fixing column, a top semicircular body is integrally provided on the top of the fixing column, a receiving ring slidably connected to the fixing column is provided at the lower end of the top semicircular body, an external cylinder corresponding to the top semicircular body is respectively provided at both ends of the female head, an additional block is integrally provided on the external cylinder, a wedge block that can elastically extend and slide is provided in the additional block, a first cover body is provided on the female head, a second cover body integrally provided with the male head is provided on the opposite side of the first cover body, and plug-in components for electrically connecting the male head and the female head are provided in the first cover body and the second cover body, which effectively solves the problem in the prior art that quick plugging and unplugging cannot be achieved, which affects quick power off during maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile accessories, and in particular to a quick plug-in connector for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] Various connectors are used in new energy vehicles, such as PCB connectors, which are specifically used to connect and fix the connection devices of printed circuit boards.

[0004] Existing connection devices have the following shortcomings:

[0005] 1. Existing connector male and female locking methods include lock type, deformation type, etc., which cannot achieve quick plugging and unplugging during the process of unfastening or deformation.

[0006] 2. Unlike previous gasoline vehicles and other fuel vehicles, in order to ensure the safety of new energy vehicles during maintenance, it is necessary to fundamentally cut off the output of the battery power to ensure rapid power outage during maintenance. However, compared with the deformed locking method, due to the strength of the workers, it is more difficult to quickly pull out in a deformed and tense state. The contact points of the wires may frequently experience a critical process of breaking and opening, which can easily cause sparks and affect the safety of the line. Summary of the Invention

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a quick plug-in connector for new energy vehicles, which effectively solves the problem in the prior art that quick plug-in and quick power-off during maintenance cannot be achieved.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A quick plug connector for new energy vehicles includes a male head and a female head, wherein the two ends of the male head are respectively provided with a fixing column, the top of the fixing column is integrally provided with a top semicircular body, the lower end of the top semicircular body is provided with a receiving ring slidably connected to the fixing column, the two ends of the female head are respectively provided with an external cylinder corresponding to the top semicircular body, the external cylinder is integrally provided with an additional block, and an elastically retractable and sliding wedge is provided in the additional block, a first cover body is provided on the female head, and a second cover body integrally provided with the male head is provided on the opposite side of the first cover body, and a plug-in component for electrically connecting the male head and the female head is provided in the first cover body and the second cover body.

[0010] Furthermore, the two ends of the male head are respectively fixedly connected with mounting columns, the fixed columns are arranged on the mounting columns, the additional block is slidably connected with a first sliding column inside, the wedge block is arranged at one end of the first sliding column, and the other end of the first sliding column is provided with a blocking column corresponding to the additional block.

[0011] Furthermore, a receiving ring groove for receiving the upper half ring portion of the receiving ring is opened inside the top semicircular body.

[0012] Furthermore, the wedge block is triangular in shape, and the lower end section can be slidably arranged with the receiving ring and the top semicircular body respectively. A first spring connected to the first sliding column sleeve is arranged between the wedge block and the additional block.

[0013] Furthermore, one end of the peripheral tube is fixedly arranged on the fixed plate, and the interior of the peripheral tube can be slidably connected to the top semicircular body, the receiving ring and the mounting column respectively.

[0014] Furthermore, the inner periphery of the first cover body is in contact with the outer periphery of the second cover body, and the second cover body is slidably connected to the inner wall of the first cover body. A first wire adapted to the female connector is provided in the first cover body, and a second wire adapted to the male connector is provided in the second cover body.

[0015] Furthermore, the plug-in component includes several first mounting heads arranged in the first cover body, an insulating slide groove is provided in the middle of the first mounting head, and electric shock slide grooves are provided at both ends of the insulating slide groove. A de-energizing slide groove connected to the electric shock slide groove is provided at both ends of the first mounting head, and an elastic contact piece electrically connected to the first wire is provided in the electric shock slide groove.

[0016] Furthermore, a second mounting head is provided in the second cover body, and a slider slidably connected to the insulating slide groove is provided at one end of the second mounting head, and the two ends of the slider are respectively fixedly connected to the first shaft block and the second shaft block, and the inner walls of the first shaft block and the second shaft block are respectively slidably connected to the first electric shock slide column and the second electric shock slide column, and the first electric shock slide column and the second electric shock slide column are respectively electrically connected to the second wire, and one end of the first electric shock slide column and the second electric shock slide column are respectively provided with electric shock columns corresponding to the elastic contact piece, and a second spring connected to the first electric shock slide column is provided between the electric shock column and the first shaft block, and the second spring connected to the second electric shock slide column is provided between the second shaft block and the other electric shock column.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can realize the rapid insertion of the male and female connectors to fix the power on, and the subsequent rapid removal of the male and female connectors to cut off the power, through the arrangement of the wedge block, the top semicircular body and the receiving ring, the arrangement of the electric shock column and the elastic contact piece in the electric shock chute, and the arrangement of the power-reducing chute, which can effectively prevent the contact points of the wires from frequently breaking and opening, causing sparks and affecting the safety of the line.

[0019] 2. Since the elastic displacement direction of the wedge block and the movement direction of the top semicircular body are in a vertical state, the elastic displacement of the wedge block can be easily changed by pushing the top semicircular body, thereby realizing the rapid insertion and removal of the male and female heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a first axonometric drawing of the present invention;

[0021] Figure 2 It is the front view of the present invention;

[0022] Figure 3 is a second axonometric drawing of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the female connector of the present invention;

[0024] Figure 5 is a cross-sectional view of the external tube of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the male connector of the present invention;

[0026] Figure 7 This is a first structural schematic diagram of the plug-in component of the present invention;

[0027] Figure 8 This is a second structural schematic diagram of the plug-in component of the present invention;

[0028] Figure 9 It is a structural schematic diagram of the slider of the present invention;

[0029] Figure 10 is a schematic structural diagram of a first mounting head of the present invention;

[0030] Figure 11 It is a structural schematic diagram of the elastic contact piece of the present invention;

[0031] In the figure: 1. male connector, 3. first wire, 4. second wire, 5. fixing plate, 6. peripheral tube, 7. top semicircular body, 8. fixing column, 9. mounting column, 10. receiving ring, 11. first sliding column, 12. wedge block, 13. first spring, 14. female connector, 15. first cover, 16. receiving ring groove, 17. blocking column, 18. additional block, 19. second mounting head, 20. slider, 21. first mounting head, 22. first shaft block, 23. first electric shock sliding column, 24. second electric shock sliding column, 25. second shaft block, 26. electric shock slide, 27. return slide, 28. electric shock column, 29. insulating slide, 30. elastic contact, 31. second spring, 32. second cover. DETAILED DESCRIPTION

[0032] like Figure 1-11 As shown, a quick plug connector for new energy vehicles includes a male head 1 and a female head 14, wherein the two ends of the male head 1 are respectively provided with a fixing column 8, the top of the fixing column 8 is integrally provided with a top semicircular body 7, and the lower end of the top semicircular body 7 is provided with a receiving ring 10 slidably connected to the fixing column 8, and the two ends of the female head 14 are respectively provided with an external tube 6 corresponding to the top semicircular body 7, the external tube 6 is integrally provided with an additional block 18, and an elastically retractable sliding wedge 12 is provided in the additional block 18, and a first cover body 15 is provided on the female head 14, and a second cover body 32 integrally provided with the male head 1 is provided on the opposite surface of the first cover body 15, and a plug-in component for electrically connecting the male head 1 and the female head 14 is provided in the first cover body 15 and the second cover body 32.

[0033] When the present invention is in use, when the male head 1 and the female head 14 are connected, the fixing columns 8 at both ends of the male head 1 respectively drive the top semicircular body 7 and the receiving ring 10 to be inserted into the external tube 6 at both ends of the female head 14. Since the upper end of the top semicircular body 7 is an arc-shaped circular surface, the top semicircular body 7 can squeeze the wedge block 12 in the additional block 18 to elastically move backward. When the top semicircular body 7 passes the wedge block 12, the wedge block 12 is reset and moved forward to be received on the annular surface of the lower end of the top semicircular body 7. The wedge block 12 is used to limit the top semicircular body 7 to achieve the plugging of the male head 1 and the female head 14. At the same time, the second cover body 32 is inserted into the first cover body 15 to seal the connection between the male head 1 and the female head 14. At the same time, the plug-in component works to electrically connect the female head 14 and the male head 1. When the male head 1 and the female head 14 need to be pulled out and separated, the top semicircular body 7 can continue to be pushed to slide along the internal of the external tube 6. The wedge 12 slides to the upper end of the top semicircular body 7 through the arc surface, canceling the limiting effect of the wedge 12, realizing the removal of the male head 1 and the female head 14, thereby realizing the quick plugging and unplugging of the male head 1 and the female head 14, and because the elastic displacement direction of the wedge 12 and the movement direction of the top semicircular body 7 are in a vertical state, the push of the top semicircular body 7 can be used to easily change the elastic displacement of the wedge 12. At the same time, the plug-in component works to cut off the power to the male head 1 and the female head 14.

[0034] The two ends of the male head 1 are respectively fixedly connected with the mounting columns 9, the fixed columns 8 are arranged on the mounting columns 9, the first sliding column 11 is slidably connected inside the additional block 18, the wedge block 12 is arranged at one end of the first sliding column 11, and the other end of the first sliding column 11 is provided with a blocking column 17 corresponding to the additional block 18.

[0035] like Figure 2 As shown, the mounting column 9 supports and fixes the fixed column 8. When the wedge block 12 is squeezed, the first sliding column 11 slides backward along the inside of the additional block 18, thereby driving the wedge block 12 to move backward. The blocking column 17 cooperates with the wedge block 12 to limit the first sliding column 11, preventing the first sliding column 11 from separating from the additional block 18.

[0036] The interior of the top semicircular body 7 is provided with a receiving ring groove 16 for receiving the upper semicircular portion of the receiving ring 10 .

[0037] like Figure 3As shown, the receiving ring groove 16 can be used to receive the upper half of the receiving ring 10. The outer edge of the receiving ring 10 is connected to the outer edge of the top semicircular body 7 to form an arc-shaped surface. The wedge block 12 slides through the arc-shaped surface to the upper end arc-shaped surface of the top semicircular body 7, canceling the limiting effect of the wedge block 12 and realizing the removal of the male head 1 and the female head 14.

[0038] The wedge block 12 is triangular in shape, and the lower end section can be slidably arranged with the receiving ring 10 and the top semicircular body 7 respectively. A first spring 13 is provided between the wedge block 12 and the additional block 18 and is sleeved and connected to the first sliding column 11.

[0039] like Figure 2 and 5 As shown, the fixed column 8 drives the top semicircular body 7 and the receiving ring 10 to be inserted into the external cylinder 6 at both ends of the female head 14 respectively. Since the upper end of the top semicircular body 7 is an arc-shaped circular surface, the top semicircular body 7 can squeeze the wedge block 12 in the additional block 18 and elastically move backward. When the top semicircular body 7 passes the wedge block 12, the wedge block 12 is reset and moved forward to be received on the lower end annular surface of the top semicircular body 7. The top semicircular body 7 is limited by the wedge block 12, and the top semicircular body 7 is continuously pushed to slide along the external cylinder 6. The receiving ring 10 squeezes the wedge block 12 again and elastically moves backward. The receiving ring 10 moves backward. When the receiving ring 10 passes the wedge block 12, under the action of the wedge block 12, the receiving ring 10 slides along the fixed column 8 toward the position of the top semicircular body 7, and the receiving ring 10 enters the groove provided in the top semicircular body 7. At the same time, the outer edge of the receiving ring 10 and the outer edge of the top semicircular body 7 are connected to form an arc-shaped surface. The wedge block 12 slides to the upper end arc-shaped surface of the top semicircular body 7 through the arc-shaped surface, canceling the limiting effect of the wedge block 12, and realizing the removal of the male head 1 and the female head 14. The first spring 13 plays a role in resetting the wedge block 12.

[0040] One end of each of the external tubes 6 is fixedly mounted on the fixed plate 5 , and the interior of the external tube 6 can be slidably connected to the top semicircular body 7 , the receiving ring 10 and the mounting column 9 respectively.

[0041] like Figure 2 and 3 As shown, the fixing plate 5 supports and fixes the external tube 6. The inner diameter of the external tube 6 is the same as the diameter of the top semicircular body 7, the receiving ring 10 and the mounting column 9, ensuring that the top semicircular body 7, the receiving ring 10 and the mounting column 9 can slide within the external tube 6 within a limited position.

[0042] The inner periphery of the first cover body 15 fits the outer periphery of the second cover body 32, and the second cover body 32 is slidably connected to the inner wall of the first cover body 15. A first wire 3 adapted to the female connector 14 is provided in the first cover body 15, and a second wire 4 adapted to the male connector 1 is provided in the second cover body 32.

[0043] like Figure 2 and 4As shown in FIG6 , the second cover 32 is slidably arranged on the inner wall of the first cover 15 . The first cover 15 serves to install the first wire 3 , and the second cover 32 serves to install the second wire 4 .

[0044] The plug-in component includes a plurality of first mounting heads 21 arranged in the first cover 15, an insulating groove 29 is provided in the middle of the first mounting head 21, and electric shock grooves 26 are provided at both ends of the insulating groove 29, and de-energizing grooves 27 connected to the electric shock grooves 26 are provided at both ends of the first mounting head 21, and elastic contacts 30 electrically connected to the first wire 3 are provided in the electric shock groove 26. A second mounting head 19 is provided in the second cover 32, and a slider 20 slidably connected to the insulating groove 29 is provided at one end of the second mounting head 19, and the two ends of the slider 20 are fixedly connected to the first shaft block 22 and the second shaft block 25, the inner walls of the first shaft block 22 and the second shaft block 25 are respectively slidably connected with the first electric shock slide 23 and the second electric shock slide 24, and the first electric shock slide 23 and the second electric shock slide 24 are respectively electrically connected to the second wire 4, and one end of the first electric shock slide 23 and the second electric shock slide 24 are respectively provided with an electric shock column 28 corresponding to the elastic contact piece 30, and a second spring 31 that is sleeved and connected to the first electric shock slide 23 is provided between the electric shock column 28 and the first shaft block 22, and the second spring 31 that is sleeved and connected to the second electric shock slide 24 is provided between the second shaft block 25 and the other electric shock column 28.

[0045] like Figure 8 and 10As shown in Figure 11, the first wire 3 is arranged on the first mounting head 21 and is electrically connected to the elastic contact piece 30. The electric contact chute 26 and the insulating chute 29 are connected, and the elastic contact pieces 30 are respectively arranged in the electric contact chute 26, and the wedge block 12 is matched with the positioning and extraction of the receiving ring 10 and the top semicircular body 7. When the wedge block 12 is limited by the top semicircular body 7 and the male head 1 and the female head 14 are inserted and fixed, the slider 20 is inserted into the insulating chute 29. At the same time, the first electric contact slide 23 and the second electric contact slide 24 on the first shaft block 22 and the second shaft block 25 are driven simultaneously. The first and second contact slides 23 and 24 are connected to each other, and the contact posts 28 at one end of the first and second contact slides 23 and 24 enter the contact chute 26 and make contact with the elastic contact piece 30. Since the second wire 4 is arranged on the second mounting head 19 and is connected to the first and second contact slides 23 and 24, the first and second contact slides 23 and 24 are electrically connected to the second wire 4 respectively. When the contact posts 28 are connected to the elastic contact piece 30, the electrical connection between the first and second wires 3 and 4 is realized. When the top semicircular body 7 is pushed to slide along the inner side of the peripheral tube 6, the male head 1 and the female head 1 are connected. 4 is disengaged. At the same time, the first electric contact slide 23 and the second electric contact slide 24 lower end electric contact column 28 continue to slide along the elastic contact piece 30 in the electric contact chute 26, and slide down to the de-energizing chute 27 under the action of the second spring 31. When the receiving ring 10 enters the groove provided in the top semicircular body 7, at the same time, the outer edge of the receiving ring 10 and the outer edge of the top semicircular body 7 are connected to form an arc surface, and the wedge block 12 slides to the upper end arc surface of the top semicircular body 7 through the arc surface, canceling the limiting effect of the wedge block 12, realizing the removal of the male head 1 and the female head 14, and the electric contact column 28 is de-energized. The slide 27 is pushed out, thereby realizing the removal of the male head 1 and the female head 14, and the male head 1 and the female head 14 can be quickly plugged in to power on and quickly removed to cut off the power. Due to the setting of the wedge block 12, the top semicircular body 7 and the receiving ring 10, the setting of the electric shock column 28 and the elastic contact piece 30 in the electric shock slide 26 and the de-energizing slide 27, the male head 1 and the female head 14 can be quickly inserted and fixed to power on, and the subsequent male head 1 and the female head 14 can be quickly removed to cut off the power, which can effectively prevent the contact points of the wires from frequently breaking and opening, causing sparks and affecting the safety of the line.

[0046] The working process of the present invention is as follows: when the present invention is in use, when the male head 1 and the female head 14 are connected, the fixed columns 8 at both ends of the male head 1 respectively drive the top semicircular body 7 and the receiving ring 10 to be inserted into the external cylinder 6 at both ends of the female head 14. Since the upper end of the top semicircular body 7 is an arc-shaped circular surface, the top semicircular body 7 can squeeze the wedge block 12 in the additional block 18 and elastically move backward. When the top semicircular body 7 passes through the wedge block 12, the wedge block 12 is reset and moved forward to be received on the lower end annular surface of the top semicircular body 7. The wedge block 12 is used to limit the top semicircular body 7 to realize the plug-in connection of the male head 1 and the female head 14. When the wedge block 12 is limited by the top semicircular body 7, the male head 1 and the female head 14 are inserted and fixed. Timingly, the slider 20 is inserted into the insulating slide groove 29. At the same time, the first electric contact slide 23 and the second electric contact slide 24 on the first shaft block 22 and the second shaft block 25 are driven at the same time, and the electric contact column 28 at one end of the first electric contact slide 23 and the second electric contact slide 24 enters the electric contact slide groove 26 and contacts the elastic contact piece 30. Since the second wire 4 is arranged on the second mounting head 19 and is connected to the first electric contact slide 23 and the second electric contact slide 24, the first wire 3 is arranged on the first mounting head 21 and is electrically connected to the elastic contact piece 30. When the electric contact column 28 is connected to the elastic contact piece 30, the electrical connection between the first wire 3 and the second wire 4 is achieved.

[0047] Continue to push the top semicircular body 7 to slide along the external tube 6, and the receiving ring 10 squeezes the wedge block 12 again and moves elastically backward. After the receiving ring 10 passes the wedge block 12, under the action of the wedge block 12, the receiving ring 10 slides along the fixed column 8 toward the position of the top semicircular body 7, and the receiving ring 10 enters the groove provided in the top semicircular body 7. At the same time, the outer edge of the receiving ring 10 and the outer edge of the top semicircular body 7 are connected to form an arc surface. The wedge block 12 slides to the upper end arc surface of the top semicircular body 7 through the arc surface, canceling the limiting effect of the wedge block 12. At the same time, the first contact slide 23 and the second contact slide 24 lower end contact column 28 continue to slide along the elastic contact piece 30 in the contact chute 26, and slides down to the de-energizing chute 27 under the action of the second spring 31. When the receiving ring 10 enters the top semicircular body A groove is provided in the circular body 7. At the same time, the outer edge of the receiving ring 10 is connected to the outer edge of the top semicircular body 7 to form an arc-shaped surface. The wedge block 12 slides to the upper arc-shaped surface of the top semicircular body 7 through the arc-shaped surface, canceling the limiting effect of the wedge block 12, realizing the removal of the male head 1 and the female head 14, and the electric shock column 28 is pushed out by the de-energizing chute 27, thereby realizing the removal of the male head 1 and the female head 14. Moreover, due to the arrangement of the wedge block 12, the top semicircular body 7 and the receiving ring 10, the electric shock column 28, the elastic contact piece 30 in the electric shock chute 26 and the de-energizing chute 27, the male head 1 and the female head 14 can be quickly inserted and fixed for power on, and the subsequent rapid removal and power off of the male head 1 and the female head 14 can be realized, which can effectively prevent the critical process of frequent breaking and opening of the contact points of the wires, causing sparks and affecting the safety of the lines.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick plug connector for new energy vehicles, comprising a male connector (1) and a female connector (14), characterized in that: The male head (1) is provided with a fixing column (8) at both ends, a top semicircular body (7) is provided on the top of the fixing column (8), and a receiving ring (10) is provided at the lower end of the top semicircular body (7) for sliding connection with the fixing column (8). The female head (14) is provided with an external tube (6) corresponding to the top semicircular body (7) at both ends, and an additional block (18) is provided in the external tube (6). An elastically retractable sliding wedge (12) is provided in the additional block (18). The female head (14) is provided with a first cover (15), and the opposite surface of the first cover (15) is provided with a support ring (10) for sliding connection with the male head. (1) A second cover body (32) is provided in an integral manner, wherein the first cover body (15) and the second cover body (32) are provided with plug-in components for electrically connecting the male head (1) and the female head (14), and the interior of the top semicircular body (7) is provided with a receiving ring groove (16) for receiving the upper semicircular portion of the receiving ring (10). When the receiving ring (10) enters the groove provided in the top semicircular body (7), at the same time, the outer edge of the receiving ring (10) and the outer edge of the top semicircular body (7) are connected to form an arc surface, and the wedge block (12) slides to the upper end arc surface of the top semicircular body (7) through the arc surface, thereby canceling the limiting effect of the wedge block (12).

2. A quick-plug connector for new energy vehicles according to claim 1, characterized in that: The two ends of the male head (1) are respectively fixedly connected with mounting columns (9), the fixed column (8) is arranged on the mounting column (9), the first sliding column (11) is slidably connected inside the additional block (18), the wedge block (12) is arranged at one end of the first sliding column (11), and the other end of the first sliding column (11) is provided with a blocking column (17) corresponding to the additional block (18).

3. A quick-plug connector for new energy vehicles according to claim 2, characterized in that: The wedge block (12) is triangular in shape, and the lower end section can be slidably arranged with the receiving ring (10) and the top semicircular body (7) respectively. A first spring (13) sleeved and connected to the first sliding column (11) is arranged between the wedge block (12) and the additional block (18).

4. A quick-plug connector for new energy vehicles according to claim 2, characterized in that: One end of the external tube (6) is fixedly arranged on the fixed plate (5), and the interior of the external tube (6) can be slidably connected to the top semicircular body (7), the receiving ring (10) and the installation column (9) respectively.

5. The quick-plug connector for new energy vehicles according to claim 1, characterized in that: The inner periphery of the first cover (15) is in contact with the outer periphery of the second cover (32), and the second cover (32) is slidably connected to the inner wall of the first cover (15). A first wire (3) adapted to the female connector (14) is provided in the first cover (15), and a second wire (4) adapted to the male connector (1) is provided in the second cover (32).

6. A quick-plug connector for new energy vehicles according to claim 1, characterized in that: The plug-in component includes a plurality of first mounting heads (21) arranged in a first cover body (15), an insulating slide groove (29) is provided in the middle of the first mounting head (21), and electric shock slide grooves (26) are provided at both ends of the insulating slide groove (29), and de-energizing slide grooves (27) connected to the electric shock slide grooves (26) are provided at both ends of the first mounting head (21), and an elastic contact piece (30) electrically connected to the first wire (3) is provided in the electric shock slide groove (26).

7. A quick-plug connector for new energy vehicles according to claim 5, characterized in that: A second mounting head (19) is provided in the second cover (32), and a slider (20) is provided at one end of the second mounting head (19) and is slidably connected to the insulating slide groove (29), and the two ends of the slider (20) are respectively fixedly connected to the first shaft block (22) and the second shaft block (25), and the inner walls of the first shaft block (22) and the second shaft block (25) are respectively slidably connected to the first electric contact slide column (23) and the second electric contact slide column (24), and the first electric contact slide column (23) and the second electric contact slide column (24) are respectively fixedly connected to the first electric contact slide column (23) and the second electric contact slide column (24). ) are electrically connected to the second wire (4), one end of the first electric shock slide (23) and the second electric shock slide (24) are respectively provided with an electric shock column (28) corresponding to the elastic contact piece (30), a second spring (31) sleeved and connected to the first electric shock slide (23) is provided between the electric shock column (28) and the first shaft block (22), and the second spring (31) sleeved and connected to the second electric shock slide (24) is provided between the second shaft block (25) and the other electric shock column (28).

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