A new energy vehicle charging pile

Abstract

The present invention relates to the technical field of new energy, and discloses a new energy vehicle charging pile, comprising a box body, a touch screen is fixedly installed on the front of the box body, a fixing bar is fixedly installed on the upper inner wall of the box body, a wire is fixedly installed on the lower side of the fixing bar, a connector is fixedly installed on the wire, two mobile drives are fixedly installed on the rear inner wall of the box body, two mobile bars are arranged between the two mobile drives, the upper and lower ends of the two mobile bars are respectively connected to the two mobile drives, the two mobile drives can drive the two mobile bars to move left and right, and when charging is completed, the mobile drive will start to drive the two mobile bars to move in a direction close to each other, thereby respectively driving six mobile rods to move and squeeze the wires, so that the wires can be S-shaped, so that the wires can be put into the box body, and the connector will enter the protection box at the same time, so that the user can avoid not putting away the connector and the wires after use, resulting in the wires and the connector being scattered outside and damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy, and in particular to a new energy vehicle charging pile. Background Art

[0002] Charging piles refer to charging equipment that provides charging services for electric vehicles. They are mainly divided into floor-standing charging piles and wall-mounted charging piles, and mainly adopt charging methods based on time, electricity consumption, and amount.

[0003] With the development of new energy vehicles, many parking lots will be equipped with charging piles for new energy vehicles. However, some outdoor parking lots have new energy vehicle charging piles installed in the open air, and there are no guards in many parking lots. Therefore, when users use the new energy vehicle charging piles, they do not put away the charging wires and connectors properly, and they are easily scattered on the ground and rubbed against the ground, affecting their service life. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a new energy vehicle charging pile, which has the advantages of being able to store the wires into a box body and the connector into a protective box at the same time. This can prevent users from failing to store the connector and the wires after use, causing the wires and the connector to be scattered outside and damaged. This solves the problem that with the development of new energy vehicles, many parking lots will be equipped with charging piles to charge new energy vehicles, but some outdoor parking lots have new energy vehicle charging piles that are set up in the open air, and most parking lots are unattended. As a result, when users do not put away the charging wires and the connector after using the new energy vehicle charging pile, they are easily scattered on the ground and rubbed against the ground, affecting their service life.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose that the wires can be stored in the box, and the connector will enter the protection box at the same time, so as to avoid the user failing to store the connector and the wires after use, resulting in the wires and the connector being scattered outside and damaged, the present invention provides the following technical solutions: a new energy vehicle charging pile, including a box, a touch screen is fixedly installed on the front of the box, a fixing bar is fixedly installed on the upper inner wall of the box, a wire is fixedly installed on the lower side of the fixing bar, and the connector is fixedly installed on the wire, and two mobile drives are fixedly installed on the rear inner wall of the box, two mobile bars are arranged between the two mobile drives, and the upper and lower ends of the two mobile bars are respectively connected to the two mobile drives The two moving drives can drive the two moving bars to move left and right, and a partition is fixedly installed on the front of the two moving drives, and six slide grooves are staggered on the partition, and moving rods are movably connected in the six slide grooves, and three horizontal bars are fixedly installed on the side where the two moving bars are close to each other, and the six horizontal bars are fixedly connected to the six moving rods respectively, and a baffle is attached to the front of the six moving rods, and the outer wall of the baffle is fixedly connected to the inner wall of the box body, a circular groove is opened on the baffle, and the wire is movably connected to the circular groove, a through groove is opened on the front wall of the box body, and the wire is movably connected to the through groove, and a protection box is fixedly installed on the front of the box body, and the connecting head is arranged in the protection box, and the protection box has no lower wall.

[0008] Preferably, the protection box has no front wall, and a movable plate is movably connected to the front side of the upper wall of the protection box via a hinge.

[0009] Preferably, a mounting block is fixedly mounted on the upper side of the protection box, a secondary screen is arranged on the mounting block, and the secondary screen is arranged tilted.

[0010] Preferably, each of the six horizontal bars is provided with a square groove, each of the six square grooves is movably connected with a slide bar, each of the six slide bars is fixedly mounted with a pressure spring, and the six pressure springs are fixedly connected to the inner walls of the six square grooves respectively.

[0011] Preferably, moving blocks are fixedly mounted on the six slide bars, the front faces of the six moving blocks are fixedly connected to the rear ends of the six moving rods respectively, and the six moving rods are movably sleeved with rotating columns.

[0012] Preferably, the six slide bars are each provided with a limiting groove, each limiting groove is movably connected to a limiting block, each square groove is fixedly installed with a limiting rod, each limiting rod movably passes through each slide bar and extends into each limiting groove, and each limiting rod is fixedly connected to each limiting block.

[0013] Preferably, two fixing blocks are arranged between the baffle and the partition, the two fixing blocks are highly connected to the lower inner wall of the box body, a cross bar is fixedly passed through the two fixing blocks, and a rotating tube is movably sleeved on the cross bar.

[0014] Preferably, two connecting grooves are provided on the upper side of the box body, and long grooves are provided on the lower inner walls of the two connecting grooves, and sliders are movably connected in the two long grooves. Connecting blocks are fixedly installed on the upper sides of the two sliders, and a movable half frame is sleeved on the box body. The lower inner wall of the movable half frame is fixedly connected to the two connecting blocks, and vertical bars are fixedly installed on the left and right sides of the movable half frame.

[0015] Preferably, an elastic ring is movably sleeved on the wire, the elastic ring is fixedly connected to the inner wall of the through slot, an annular soft strip is movably sleeved on the wire, the annular soft strip is fixedly connected to the front side of the box, and a notch is provided on the annular soft strip.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a new energy vehicle charging pile, which has the following beneficial effects:

[0018] 1. The new energy vehicle charging pile, through the wire staggered around six moving rods and then through the circular groove and the through groove, when a user needs to use the device for charging, the two mobile drives start to drive the two moving bars to move away from each other, so that the user can pull out the wire for charging, when the charging is completed, the mobile drive will start to drive the two moving bars to move towards each other, so that the six moving rods can be driven to move and squeeze the wires respectively, so that the wires can be S-shaped, so that the wires can be put into the box, and the connector will enter the protective box at the same time, so that the user can avoid not putting away the connector and wires after use, resulting in the wires and connectors being scattered outside and damaged.

[0019] 2. The new energy vehicle charging pile can protect the connector through the protective box and prevent rain from contacting the connector and affecting its service life. At the same time, the user can quickly take the connector for charging by flipping the movable plate upwards. The secondary screen and touch screen can be used conveniently by users of different heights.

[0020] 3. The new energy vehicle charging pile can avoid damage caused by excessive pressure when squeezing the wire into an S shape through the toughness of the pressure spring. At the same time, the rotating column can rotate when squeezing the wire into an S shape, thereby reducing the friction generated by the wire, which can further avoid damage to the wire and affect its service life.

[0021] 4. The new energy vehicle charging pile can maintain the stability of the slider when it moves left and right through the limit rod. At the same time, the limit rod and the limit block can cooperate to prevent the slider from falling off from the square groove, thereby preventing the slider from falling off and affecting the operation of the device.

[0022] 5. The new energy vehicle charging pile makes the wire pass under the rotating tube when passing through the circular groove, so that the rotating tube is driven to rotate when the wire moves, so that the rotating tube can be used to reduce friction, thereby reducing the force required for the user to extract the wire, thereby facilitating user use.

[0023] 6. The new energy vehicle charging pile can facilitate users to move the movable half frame forward and backward through two vertical bars. When the sunlight is strong or it rains, the movable half frame can be moved forward to block the secondary screen and the touch screen, thereby avoiding direct sunlight from reflecting the secondary screen and the touch screen and affecting user use. At the same time, it can block rain, making it convenient for users to use it on rainy days.

[0024] 7. The new energy vehicle charging pile can intercept dust and other impurities on the surface of the wire outside the box through the elastic ring when collecting the wire, so as to avoid the wire carrying dust and other impurities from the outside into the box when used on rainy days, causing accumulation and affecting the operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 A schematic diagram of the cross-sectional three-dimensional structure of the middle box;

[0027] Figure 3 For the present invention Figure 2 Schematic diagram of the three-dimensional structure of the moving bar;

[0028] Figure 4 For the present invention Figure 3 A schematic diagram of the cross-sectional three-dimensional structure of the middle horizontal bar;

[0029] Figure 5 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the middle connector.

[0030] In the figure: 1. box body; 2. movable half frame; 3. vertical bar; 4. touch screen; 5. sub-screen; 6. mounting block; 7. movable plate; 8. connector; 9. wire; 10. protection box; 11. connecting block; 12. slider; 13. fixing bar; 14. connecting groove; 15. long groove; 16. baffle; 17. round groove; 18. rotating tube; 19. fixing block; 20. cross bar; 21. mobile drive; 22. partition; 23. moving bar; 24. slide groove; 25. moving rod; 26. rotating column; 27. cross bar; 28. slide bar; 29. ​​moving block; 30. limit block; 31. limit rod; 32. square groove; 33. pressure spring; 34. through groove; 35. annular soft strip; 36. elastic ring; 37. notch; 38. limit groove. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings, wherein the same components are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom surface" and "top surface" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 5The present invention provides a technical solution: a new energy vehicle charging pile, including a box body 1, the box body 1 is the main shell of the charging pile, a touch screen 4 is fixedly installed on the front of the box body 1, a fixing bar 13 is fixedly installed on the upper inner wall of the box body 1, a wire 9 is fixedly installed on the lower side of the fixing bar 13, a connector 8 is fixedly installed on the wire 9, two mobile drives 21 are fixedly installed on the rear inner wall of the box body 1, two mobile bars 23 are arranged between the two mobile drives 21, the upper and lower ends of the two mobile bars 23 are respectively connected to the two mobile drives 21, the two mobile drives 21 can drive the two mobile bars 23 to move left and right, a partition 22 is fixedly installed on the front of the two mobile drives 21, six slide grooves 24 are staggered on the partition 22, and the six slide grooves 24 are movably connected with The moving rod 25 and the side where the two moving bars 23 are close to each other are fixedly installed with three horizontal bars 27, and the six horizontal bars 27 are fixedly connected to the six moving rods 25 respectively. The front of the six moving rods 25 is fitted with a baffle 16, and the outer wall of the baffle 16 is fixedly connected to the inner wall of the box body 1. The baffle 16 is provided with a circular groove 17, and the wire 9 is movably connected to the circular groove 17. The front wall of the box body 1 is provided with a through groove 34, and the wire 9 is movably connected to the through groove 34. A protection box 10 is fixedly installed on the front of the box body 1, and the connector 8 is arranged in the protection box 10. The protection box 10 has no lower wall. By staggering the wires around the six moving rods 25 and then passing through the circular groove 17 and the through groove 34, when a user needs to use the device for charging, the two mobile drives 21 are started to drive the two moving rods 25 to charge. The bars 23 move away from each other, so that the user can pull out the wire 9 for charging. When charging is completed, the mobile drive 21 will start to drive the two moving bars 23 to move towards each other, thereby respectively driving the six moving rods 25 to move and squeeze the wire 9, so that the wire 9 can be S-shaped, so that the wire can be put into the box body 1, and the connector 8 will enter the protection box 10 at the same time. This can prevent the user from not putting away the connector 8 and the wire 9 after use, resulting in the wire 9 and the connector 8 being scattered outside and damaged. The protection box 10 has no front wall, and the front side of the upper wall of the protection box 10 is movably connected with a movable plate 7 through a hinge. A mounting block 6 is fixedly installed on the upper side of the protection box 10, and a sub-screen 5 is arranged on the mounting block 6. The sub-screen 5 The tilted setting can protect the connector 8 through the protection box 10 while preventing rain from contacting the connector 8 and affecting its service life. At the same time, the user can quickly take the connector 8 for charging by flipping the movable plate 7 upwards. The auxiliary screen 5 and the touch screen 4 can be used conveniently by users of different heights. Square grooves 32 are provided in the six horizontal bars 27, and the six square grooves 32 are movably connected with slide bars 28. Pressure springs 33 are fixedly installed on the six slide bars 28, and the six pressure springs 33 are respectively fixedly connected to the inner walls of the six square grooves 32. Moving blocks 29 are fixedly installed on the six slide bars 28. The front faces of the six moving blocks 29 are respectively fixedly connected to the rear ends of the six moving rods 25, and the six moving rods 25 are movably sleeved with rotating columns 26.The toughness of the pressure spring 33 can prevent the wire 9 from being damaged due to excessive pressure when it is squeezed into an S shape. At the same time, the rotating column 26 can rotate when the wire 9 is squeezed into an S shape, thereby reducing the friction generated by the wire 9. This can further prevent the wire 9 from being damaged and affecting its service life. Limiting grooves 38 are provided in the six slides 28, and each limiting groove 38 is movably connected to a limiting block 30. A limiting rod 31 is fixedly installed in each square groove 32. Each limiting rod 31 movably passes through each slide 28 and extends into each limiting groove 38 respectively. Each limiting rod 31 is fixedly connected to each limiting block 30 respectively. The limiting rod 31 can maintain the stability of the slide bar 28 when it moves left and right. At the same time, the limiting rod 31 cooperates with the limiting block 30 to prevent the slide bar 28 from falling off from the square groove 32, thereby preventing the slide bar 28 from falling off and affecting the operation of the device. Two fixed blocks 19 are arranged between the baffle 16 and the partition 22. The two fixed blocks 19 are highly connected to the lower inner wall of the box body 1. The two fixed blocks 19 are fixed with a cross bar 20, and the cross bar 20 is movably sleeved with a rotating tube 18. By passing the wire 9 around the bottom of the rotating tube 18 when passing through the circular groove 17, the rotating tube 18 is driven to rotate when the wire 9 moves, so that the rotating tube 18 can be used to reduce friction, so that In order to reduce the force required by the user to extract the wire 9, thereby facilitating the use of the user, two connecting grooves 14 are provided on the upper side of the box body 1, and long grooves 15 are provided on the lower inner walls of the two connecting grooves 14. Slide blocks 12 are movably connected in the two long grooves 15, and connecting blocks 11 are fixedly installed on the upper sides of the two slide blocks 12. A movable half frame 2 is sleeved on the box body 1, and the lower inner wall of the movable half frame 2 is fixedly connected to the two connecting blocks 11. Vertical bars 3 are fixedly installed on the left and right sides of the movable half frame 2. The two vertical bars 3 can facilitate the user to move the movable half frame 2 forward and backward, so that when the sunlight is strong or it rains, the movable half frame 2 can be moved forward, so that the auxiliary screen 5 and the touch screen 4 can be connected. The wire 9 is movably sleeved with an elastic ring 36, which is fixedly connected to the inner wall of the through groove 34. The wire 9 is movably sleeved with an annular soft strip 35, which is fixedly connected to the front of the box 1. A notch 37 is provided on the annular soft strip 35. The dust and other impurities on the surface of the wire 9 can be intercepted outside the box 1 through the elastic ring 36 when the wire 9 is collected, so as to avoid the wire 9 carrying dust and other impurities from the outside into the box 1 when it is used on rainy days, causing accumulation and affecting the operation of the device.

[0034] By staggering the wires around the six moving rods 25 and then passing through the circular groove 17 and the through groove 34, when a user needs to use the device for charging, the two moving drives 21 are started to drive the two moving bars 23 to move away from each other, so that the user can pull out the wire 9 for charging. When charging is completed, the moving drive 21 will start to drive the two moving bars 23 to move towards each other, thereby respectively driving the six moving rods 25 to move and squeeze the wire 9, so that the wire 9 can be S-shaped, so that the wire can be put into the box body 1, and the connector 8 will enter the protection box 10, so that It can prevent the user from not putting away the connector 8 and the wire 9 after use, causing the wire 9 and the connector 8 to be scattered outside and damaged. The protective box 10 can protect the connector 8 and prevent rain from contacting the connector 8 and affecting its service life. At the same time, the user can quickly take the connector 8 for charging by flipping the movable plate 7 upward. The auxiliary screen 5 and the touch screen 4 can be used to facilitate users of different heights to operate. The toughness of the pressure spring 33 can prevent the wire 9 from being damaged due to excessive pressure when it is squeezed into an S shape. At the same time, the rotating column 26 can be used to squeeze the wire 9 into an S shape. The wire 9 can rotate, thereby reducing the friction generated by the wire 9, which can further prevent the wire 9 from being damaged and affecting its service life. The limit rod 31 can maintain the stability of the slide bar 28 when it moves left and right. At the same time, the limit rod 31 cooperates with the limit block 30 to prevent the slide bar 28 from falling off from the square groove 32, thereby preventing the slide bar 28 from falling off and affecting the operation of the device. The wire 9 is passed through the circular groove 17. The rotating tube 18 is driven to rotate when the wire 9 moves, so that the rotating tube 18 can be used to reduce friction, so that the force required for the user to extract the wire 9 can be reduced, so that it is convenient to use. The movable half frame 2 can be conveniently moved forward and backward by the two vertical bars 3, so that when the sunlight is strong or it rains, the movable half frame 2 can be moved forward to shield the auxiliary screen 5 and the touch screen 4, thereby preventing the auxiliary screen 5 and the touch screen 4 from being directly reflected by the sunlight and affecting the user's use, and at the same time blocking the rain, so as to facilitate the user to use it on rainy days, and the elastic ring 36 can be used to intercept the dust and other impurities on the surface of the wire 9 outside the box body 1 when collecting the wire 9, so as to prevent the wire 9 from carrying the dust and other impurities from the outside into the box body 1 when using it on rainy days, causing accumulation and affecting the operation of the device.

[0035] When in use, the first step is: by interlacing the wires around the six moving rods 25 and then passing through the circular groove 17 and the through groove 34, when a user needs to use the device for charging, the two mobile drives 21 are started to drive the two moving bars 23 to move away from each other, so that the user can pull out the wire 9 for charging. When the charging is completed, the mobile drive 21 will start to drive the two moving bars 23 to move towards each other, thereby driving the six moving rods 25 to move and squeeze the wire 9 respectively, so that the wire 9 can be S-shaped, so that the wire can be put into the box body 1, and the connector 8 will enter the protective box 10 at the same time, so that the user can avoid not putting away the connector 8 and the wire 9 after use, causing the wire 9 and the connector 8 to be scattered outside and damaged.

[0036] Step 2: The protective box 10 can protect the connector 8 and prevent rain from contacting the connector 8 and affecting its service life. At the same time, the movable plate 7 can be flipped upward so that the user can quickly take the connector 8 for charging. The cooperation between the secondary screen 5 and the touch screen 4 can facilitate the operation by users of different heights.

[0037] Step 3: The toughness of the pressure spring 33 can prevent the wire 9 from being damaged due to excessive pressure when it is squeezed into an S shape. At the same time, the rotating column 26 can rotate when the wire 9 is squeezed into an S shape, thereby reducing the friction generated by the wire 9, which can further prevent the wire 9 from being damaged and affecting its service life.

[0038] Step 4: The limit rod 31 can maintain the stability of the slide bar 28 when it moves left and right. At the same time, the limit rod 31 cooperates with the limit block 30 to prevent the slide bar 28 from falling off from the square groove 32, thereby preventing the slide bar 28 from falling off and affecting the operation of the device.

[0039] Step 5: When the wire 9 passes through the circular groove 17, it is passed under the rotating tube 18, so that the rotating tube 18 is driven to rotate when the wire 9 moves, so that the rotating tube 18 can be used to reduce friction, thereby reducing the force required for the user to extract the wire 9, thereby making it more convenient for the user to use.

[0040] Step 6: The two vertical bars 3 can facilitate the user to move the movable half frame 2 forward and backward, so that when the sunlight is strong or it is raining, the movable half frame 2 can be moved forward to block the sub-screen 5 and the touch screen 4, thereby avoiding direct sunlight from reflecting on the sub-screen 5 and the touch screen 4 and affecting the user's use. At the same time, it can block rain, making it convenient for users to use it on rainy days.

[0041] Step 7: The elastic ring 36 can be used to intercept dust and other impurities on the surface of the wire 9 outside the box 1 when the wire 9 is collected, thereby preventing the wire 9 from carrying dust and other impurities from the outside into the box 1 when used on rainy days, causing accumulation and affecting the operation of the device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle charging pile, comprising a box (1), a touch screen (4) fixedly mounted on the front of the box (1), a fixing bar (13) fixedly mounted on the upper inner wall of the box (1), a wire (9) fixedly mounted on the lower side of the fixing bar (13), and a connector (8) fixedly mounted on the wire (9), characterized in that: Two moving drives (21) are fixedly installed on the rear inner wall of the box body (1), two moving bars (23) are arranged between the two moving drives (21), the upper and lower ends of the two moving bars (23) are respectively connected to the two moving drives (21), and the two moving drives (21) can drive the two moving bars (23) to move left and right, and a partition (22) is fixedly installed on the front of the two moving drives (21), and six slide grooves (24) are staggered on the partition (22), and the six slide grooves (24) are all movably connected to the moving rods (25), and the two moving bars (23) are fixedly installed on the side close to each other. Three horizontal bars (27) are provided, and the six horizontal bars (27) are respectively fixedly connected to the six moving rods (25). The front sides of the six moving rods (25) are fitted with baffles (16), and the outer side wall of the baffles (16) is fixedly connected to the inner side wall of the box body (1). The baffles (16) are provided with a circular groove (17), and the wire (9) is movably connected to the circular groove (17). The front wall of the box body (1) is provided with a through groove (34), and the wire (9) is movably connected to the through groove (34). A protection box (10) is fixedly installed on the front side of the box body (1), and the connector (8) is arranged in the protection box (10). The protection box (10) has no lower wall. The protection box (10) has no front wall, and a movable plate (7) is movably connected to the front side of the upper wall of the protection box (10) via a hinge; A mounting block (6) is fixedly mounted on the upper side of the protection box (10), a secondary screen (5) is arranged on the mounting block (6), and the secondary screen (5) is arranged in an inclined manner; Each of the six horizontal bars (27) is provided with a square groove (32), each of the six square grooves (32) is movably connected to a slide bar (28), each of the six slide bars (28) is fixedly mounted with a pressure spring (33), and the six pressure springs (33) are respectively fixedly connected to the inner walls of the six square grooves (32); The six slide bars (28) are all fixedly mounted with moving blocks (29), the front faces of the six moving blocks (29) are respectively fixedly connected to the rear ends of the six moving rods (25), and the six moving rods (25) are all movably sleeved with rotating columns (26); The six slide bars (28) are each provided with a limiting groove (38), each limiting groove (38) is movably connected to a limiting block (30), each square groove (32) is fixedly installed with a limiting rod (31), each limiting rod (31) movably passes through each slide bar (28) and extends into each limiting groove (38), and each limiting rod (31) is fixedly connected to each limiting block (30); Two fixed blocks (19) are arranged between the baffle (16) and the partition (22), and the two fixed blocks (19) are both highly connected to the lower inner wall of the box body (1). A cross bar (20) is fixedly passed through the two fixed blocks (19), and a rotating tube (18) is movably sleeved on the cross bar (20); The box body (1) has two connecting grooves (14) on the upper side, and the lower inner walls of the two connecting grooves (14) are each provided with a long groove (15), and the two long grooves (15) are each movably connected with a slider (12), and the upper sides of the two sliders (12) are each fixedly mounted with a connecting block (11), and a movable half frame (2) is sleeved on the box body (1), and the lower inner wall of the movable half frame (2) is fixedly connected to the two connecting blocks (11), and vertical bars (3) are fixedly mounted on both left and right sides of the movable half frame (2); The conductor (9) is movably sleeved with an elastic ring (36), the elastic ring (36) is fixedly connected to the inner wall of the through slot (34), the conductor (9) is movably sleeved with an annular soft strip (35), the annular soft strip (35) is fixedly connected to the front surface of the box body (1), and a notch (37) is provided on the annular soft strip (35).

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