A new type of intelligent bus duct pin

Abstract

The invention discloses a novel intelligent bus duct plug pin, and relates to the technical field of bus duct plug pins, comprising a shell, wherein a connecting component for clamping a plug of a plug-in box is arranged inside the shell, and an indicating component for prompting that the plug and the plug pin are normally connected is arranged inside the shell. The invention uses a cleaning component, the plug squeezes a moving bar to move, the moving bar drives a scraper to move, the scraper scrapes the outer side of an opening piece and a contact piece to scrape off dust, the wave spring piece stretches and pushes the scraper to move, so that the scraper moves close to the surface of the contact piece, thereby achieving the effect of cleaning dust adhered to the plug pin, avoiding the situation where dust is between the plug and the plug pin to affect the connection, and reducing the risk of short circuit. Before the plug pin is used, the moving bar and the scraper are blocked between the opening pieces, thereby avoiding external dust from entering the shell through the plug interface and adhering to the outer sides of the opening piece and the contact piece, thereby reducing the adhesion of dust.

Description

Technical Field

[0001] The invention relates to the technical field of bus duct pins, in particular to a novel intelligent bus duct pin. Background Art

[0002] Bus duct is an electrical device mainly used for transmitting electricity. It can be directly connected from the transformer to the low-voltage distribution cabinet, or directly connected from the low-voltage cabinet to the distribution system as a distribution trunk line. Bus duct pins, also known as bus pins, are a key component in the bus duct system. They are used to connect bus duct units or to electrically connect bus duct to other electrical equipment such as plug-in boxes, circuit breakers, transformers, etc. Bus duct pins are usually made of copper or aluminum and have good conductivity and mechanical strength to ensure close contact and reliable electrical connection.

[0003] After the plug of the junction box is inserted into the bus duct pin, there is a gap between the plug and the bus duct pin. Rainwater and dust can easily pass through the gap and adhere to the connection between the plug and the bus duct pin, which can easily cause a short circuit in the line or corrosion to the plug and pin, affecting the line safety and the service life of the plug and pin.

[0004] Due to mechanical fatigue of the bus duct pins, the clamping force will usually be insufficient after sixty plugging and unplugging, resulting in a small contact area between the plug of the plug box and the bus duct pins, which is prone to short circuits. When users use bus duct pins with poor connections, they cannot determine whether the bus duct pins can be used normally, which can easily lead to short circuits and fires. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a novel intelligent bus duct plug pin, which solves the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a new type of intelligent bus duct pin, used to connect the plug of the plug box, the new type of intelligent bus duct pin includes a shell, a connecting component for clamping the plug of the plug box is arranged inside the shell, an indicating component for prompting that the connection between the plug and the pin is normal is arranged inside the shell, a sealing component for sealing the connection between the plug and the pin is arranged inside the shell, and a cleaning component for removing dust inside the pin is arranged inside the shell.

[0009] Furthermore, the connecting assembly includes an adapter column fixedly connected to the inside of the outer shell, a connecting plate fixedly connected to the outer side of the adapter column by bolts, an end of the connecting plate away from the adapter column is rotatably connected to a rotating plate, a side of the rotating plate away from the connecting plate is fixedly connected to a contact plate, and a side of the contact plate away from the rotating plate is fixedly connected to an opening plate.

[0010] Furthermore, an insertion interface is provided at one end of the shell away from the adapter column, the contact piece is fixedly connected with a proximity spring near the outside, the proximity spring is fixedly connected to the shell, and the connecting piece is symmetrically arranged on the outside of the adapter column.

[0011] Furthermore, the indication assembly includes a long connecting tube fixedly connected to the inside of the outer shell, a series wire is fixedly connected to the top of the long connecting tube, a connecting wire is fixedly connected to the outside of the long connecting tube, an indicator light is fixedly connected to the top of the series wire, a power supply is fixedly connected to the top of the indicator light, an end of the connecting wire away from the long connecting tube is fixedly connected to a terminal tube, a positioning wire is fixedly connected to the top of the terminal tube, a positioning block is slidably connected to the outside of the adapter column, and a series block is fixedly connected to the top of the positioning block.

[0012] Furthermore, a slide rod is slidably connected inside the long connecting tube, the slide rod passes through the contact piece, one end of the slide rod close to the long connecting tube is fixedly connected to a power connection block, a reset spring is fixedly connected inside the long connecting tube, and the reset spring is fixedly connected to the slide rod.

[0013] Furthermore, the sealing assembly includes a connecting rod rotatably connected to the top of the put-in-place block, the end of the connecting rod away from the put-in-place block is rotatably connected to an outer frame, a high-temperature resistant rubber block is fixedly connected to the inside of the outer frame, a sliding column is fixedly connected to the outside of the outer frame, the sliding column is slidably connected to the outer shell, and a lower rubber block is slidably connected to the inside of the outer shell.

[0014] Furthermore, an unlocking block is fixedly connected inside the positioning block, a slot is provided inside the unlocking block, a sliding rod is slidably connected inside the slot, the sliding rod is rotatably connected to the adapter column, and a pop-up spring is fixedly connected to the side of the unlocking block close to the adapter column, and the pop-up spring is fixedly connected to the adapter column.

[0015] Furthermore, the cleaning assembly includes a moving bar slidably connected to the inside of the shell, a scraper is slidably connected to the inside of the moving bar, an arc-shaped spring sheet is fixedly connected to the inside of the moving bar, a wavy spring sheet is fixedly connected to the bottom of the moving bar, and the end of the wavy spring sheet away from the moving bar is fixedly connected to the shell.

[0016] (III) Beneficial effects

[0017] The novel intelligent bus duct plug provided by the present invention has the following beneficial effects:

[0018] 1. The present invention uses a sealing assembly, and the positioning block drives the connecting rod to move, and the connecting rod drives the high-temperature resistant rubber block to contact the plug. At the same time, the bottom of the high-temperature resistant rubber block squeezes the lower rubber block, so that the two high-temperature resistant rubber blocks and the two lower rubber blocks are combined to seal the gap between the plug and the plug interface, thereby achieving the effect of sealing the connection between the plug and the pin, preventing external dust and rain from entering the inside of the housing through the gap between the plug and the plug interface, and preventing dust and rain from corroding the plug and reducing the service life of the pin. At the same time, the two high-temperature resistant rubber blocks and the two lower rubber blocks have the effect of fixing the plug to prevent the plug from loosening;

[0019] After the plug is installed in place, the positioning block is fixed so that the plug cannot be pushed inward any further, achieving the effect of automatic limiting after installation, avoiding the problem of the plug going too deep into the pin. Since the positioning block is fixed, the two high-temperature resistant rubber blocks and the two lower rubber blocks continue to fix the plug, achieving the effect of locking the plug, avoiding the plug from loosening and falling off.

[0020] 2. The present invention uses the indicating component, and the plug contacts and conducts electricity with the two contact pieces, thereby achieving the effect of increasing the contact surface, thereby reducing the contact resistance and the loss of electric energy. The plug squeezes the slide bar to slide, and the four slide bars are squeezed by the plug to make the circuits connected in series. Therefore, the contact area between the plug and the contact piece is complete, and at the same time, the in-place block drives the series block to move, and the series block contacts the in-place line to connect the entire circuit in series. The top of the plug exceeds the contact piece to avoid the plug being loose and directly reducing the contact area with the contact piece. The power supply supplies power to the indicator light, so that the indicator light lights up, prompting the user that the plug is successfully plugged in, achieving the effect of prompting that the plug and the pin are in good contact. The four slide bars are squeezed into place by the plug to make the circuit in series, and the series block moves the circuit in series, indicating that the plug and the pin are in good contact and the plug is deep enough into the pin to make the indicator light up, avoiding the situation that the user cannot know the contact between the plug and the pin and the plug is not deep enough into the pin. Short circuit caused by the pin, when the four slide bars are not squeezed into place and the circuit is not connected in series, the power supply will not be able to supply power to the indicator light, and the user judges that there is a problem when the indicator light does not light up.

[0021] 3. The present invention uses a cleaning component. The plug squeezes the moving bar to move, and the moving bar drives the scraper to move. The scraper scrapes the outer side of the opening piece and the contact piece to scrape off the dust. The wave spring piece stretches to push the scraper to move, so that the scraper moves close to the surface of the contact piece, thereby achieving the effect of cleaning the dust adhered to the pin, avoiding the situation where dust is between the plug and the pin and affects the connection, reducing the risk of short circuit. Before the pin is used, the moving bar and the scraper block between the opening piece, preventing external dust from entering the shell through the plug interface and adhering to the outer side of the opening piece and the contact piece, thereby reducing the adhesion of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic cross-sectional view of the shell structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the connection assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the indicating components of the present invention;

[0026] Figure 5 It is a schematic cross-sectional view of the long connecting tube structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the sealing assembly of the present invention;

[0028] Figure 7 This is a schematic diagram of the unlocking block structure of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0030] The numbers in the figure represent:

[0031] 1. Shell;

[0032] 2. Connecting assembly; 21. Adapter column; 22. Connecting piece; 23. Rotating piece; 24. Contact piece; 25. Opening piece; 26. Plug-in interface; 27. Close spring;

[0033] 3. Indicator assembly; 31. Long connecting tube; 32. Series wire; 33. Connecting wire; 34. Indicator light; 35. Power supply; 36. Termination tube; 37. In-position wire; 38. In-position block; 39. Series block; 310. Sliding rod; 311. Reset spring;

[0034] 4. Sealing assembly; 41. Connecting rod; 42. Outer frame; 43. High temperature resistant rubber block; 44. Sliding column; 45. Lower rubber block; 46. Unlocking block; 47. Slot; 48. Sliding rod; 49. Pop-up spring;

[0035] 5. Cleaning component; 51. Moving bar; 52. Scraper; 53. Arc spring sheet; 54. Wave spring sheet. DETAILED DESCRIPTION

[0036] 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.

[0037] refer to Figures 1 to 8 A novel intelligent bus duct pin according to a preferred embodiment of the present invention will be described in detail below.

[0038] A novel intelligent bus duct plug includes a shell 1, a connecting component 2 for clamping a plug of a plug box is arranged inside the shell 1, an indicating component 3 for prompting that the connection between the plug and the pin is normal is arranged inside the shell 1, a sealing component 4 for sealing the connection between the plug and the pin is arranged inside the shell 1, and a cleaning component 5 for removing dust inside the pin is arranged inside the shell 1.

[0039] The connecting component 2 includes an adapter column 21 fixedly connected to the inside of the shell 1. The adapter column 21 is made of copper and has good conductive effect. A connecting piece 22 is fixedly connected to the outside of the adapter column 21 by bolts. The connecting piece 22 is made of copper and has good conductive effect. The end of the connecting piece 22 away from the adapter column 21 is rotatably connected to a rotating piece 23. The rotating piece 23 is made of copper and has good conductive effect. A contact piece 24 is fixedly connected to the side of the rotating piece 23 away from the connecting piece 22. The contact piece 24 is symmetrically arranged inside the shell 1. The contact piece 24 is made of copper and has good conductive effect. An opening piece 25 is fixedly connected to the side of the contact piece 24 away from the rotating piece 23. The opening piece 25 is made of copper and has good conductive effect. The side of the opening piece 25 away from the contact piece 24 is rounded.

[0040] An insertion port 26 is provided at one end of the shell 1 away from the adapter column 21. The insertion port 26 is larger than the plug to facilitate smooth insertion of the plug. The contact piece 24 is fixedly connected to a proximity spring 27 near the outside. The proximity spring 27 is made of alloy material, has good elasticity and is non-conductive. The proximity spring 27 is fixedly connected to the shell 1, and the connecting piece 22 is symmetrically arranged on the outside of the adapter column 21.

[0041] The indicating assembly 3 includes a long connecting tube 31 fixedly connected to the inside of the shell 1, the long connecting tube 31 is symmetrically arranged inside the shell 1, a series wire 32 is fixedly connected to the top of the long connecting tube 31, the series wire 32 penetrates into the inside of the long connecting tube 31, a connecting wire 33 is fixedly connected to the outside of the long connecting tube 31, the connecting wire 33 penetrates into the inside of the long connecting tube 31, an indicator light 34 is fixedly connected to the top of the series wire 32, a power supply 35 is fixedly connected to the top of the indicator light 34, a sensor is arranged inside the power supply 35, the sensor is connected to the computer of the inspector through an electrical signal, when the power supply line of the power supply 35 is not energized, the sensor transmits the electrical signal to the computer of the inspector to prompt the inspector that the line connection is abnormal, the end of the connecting wire 33 away from the long connecting tube 31 is fixedly connected to the termination tube 36, the termination tube 36 is symmetrically arranged inside the shell 1, the top of the termination tube 36 is fixedly connected to the position line 37, the outer side of the adapter column 21 is slidably connected to the position block 38, and the top of the position block 38 is fixedly connected to the series block 39.

[0042] A slide rod 310 is slidably connected inside the long connecting tube 31, and a slide rod 310 is arranged inside the terminal tube 36. There are four slide rods 310. The slide rod 310 is made of high-temperature resistant plastic material, which is hard and non-conductive. The slide rod 310 passes through the contact piece 24. One end of the slide rod 310 close to the long connecting tube 31 is fixedly connected to a power connection block. The power connection block is made of copper and has good conductivity. A reset spring 311 is fixedly connected inside the long connecting tube 31, and the reset spring 311 is fixedly connected to the slide rod 310.

[0043] The sealing assembly 4 includes a connecting rod 41 rotatably connected to the top of the positioning block 38. The connecting rod 41 is made of high-temperature resistant plastic material, which is hard and non-conductive. The end of the connecting rod 41 away from the positioning block 38 is rotatably connected to an outer frame 42. The outer frame 42 is made of high-temperature resistant plastic material, which is hard and non-conductive. A high-temperature resistant rubber block 43 is fixedly connected inside the outer frame 42, and a sliding column 44 is fixedly connected to the outside of the outer frame 42. The sliding column 44 is slidably connected to the outer shell 1, and a lower rubber block 45 is slidably connected inside the outer shell 1. The lower rubber block 45 is slidably connected to the outer shell 1 up and down.

[0044] An unlocking block 46 is fixedly connected inside the positioning block 38, and a card slot 47 is provided inside the unlocking block 46. The card slot 47 is in the shape of an inverted heart, and a fixed slot is provided at the left end. A sliding rod 48 is slidably connected inside the card slot 47, and the sliding rod 48 is rotatably connected to the adapter column 21. A pop-up spring 49 is fixedly connected to the side of the unlocking block 46 close to the adapter column 21, and the pop-up spring 49 is fixedly connected to the adapter column 21.

[0045] The cleaning component 5 includes a moving bar 51 slidably connected to the inside of the outer shell 1, a scraper 52 is slidably connected to the inside of the moving bar 51, the scraper 52 is made of hard rubber and is non-conductive, an arc-shaped spring sheet 53 is fixedly connected to the inside of the moving bar 51, a wave spring sheet 54 is fixedly connected to the bottom of the moving bar 51, and the end of the wave spring sheet 54 away from the moving bar 51 is fixedly connected to the outer shell 1.

[0046] The following is the entire working process and working principle of the above embodiment: the user inserts the plug of the plug box into the housing 1 through the plug interface 26, the plug contacts the moving bar 51 and squeezes the moving bar 51, so that the moving bar 51 moves toward the position block 38, the moving bar 51 drives the scraper 52 slidably connected thereto to move toward the position block 38, the scraper 52 scrapes the outer side of the opening piece 25 and the contact piece 24 to scrape off the dust, because the opening piece 25 is inclined, the opening piece 25 squeezes the scraper 52 to move toward the inside of the moving bar 51, the two scrapers 52 squeeze the arc spring piece 53 fixedly connected thereto so that the wave spring piece 54 contracts and accumulates force, when the scraper 52 passes the contact piece 24, the arc spring piece 53 stretches and pushes the scraper 52 toward The contact piece 24 moves in the direction so that the scraper 52 moves closely against the surface of the contact piece 24 to scrape off the dust, thereby achieving the effect of cleaning the dust adhered to the pins, avoiding the situation where dust is between the plug and the pins and affecting the connection, and reducing the risk of short circuit. Before the pins are used, the moving bar 51 and the scraper 52 are blocked between the opening piece 25, preventing external dust from entering the shell 1 through the plug interface 26 and adhering to the outer side of the opening piece 25 and the contact piece 24, reducing the adhesion of dust. At the same time, the moving bar 51 moves in the direction of the positioning block 38, and the moving bar 51 pushes the wave spring piece 54 to contract. When the plug is pulled out, the wave spring piece 54 stretches and pushes it away from the positioning block 38 to reset, and reseals the opening piece 25 to prevent dust from entering.

[0047] Furthermore, the plug of the plug box is inserted into the shell 1 through the plug interface 26, and the plug squeezes the opening piece 25 to deflect to both sides, and the opening piece 25 drives the contact piece 24 fixedly connected thereto to deflect to both sides, and the contact piece 24 squeezes the close spring 27 so that the close spring 27 accumulates force, and the contact piece 24 drives the rotating piece 23 fixedly connected thereto to deflect to both sides, and the contact piece 24 is not parallel to the transfer column 21 and deflects to a state parallel to the transfer column 21, and the plug contacts the side of the contact piece 24 away from the close spring 27. Since the contact piece 24 is symmetrically arranged inside the shell 1, the plug contacts the two contact pieces 24 contact conduction, to achieve the effect of increasing the contact surface, thereby reducing contact resistance and power loss, at the same time, the plug squeezes the slide bar 310 to slide into the long connecting tube 31, the slide bar 310 squeezes the reset spring 311 so that the reset spring 311 accumulates force, the power block of the slide bar 310 close to the end of the long connecting tube 31 is in contact with the series line 32 and the connecting line 33, so that the series line 32 and the connecting line 33 are connected in series, the slide bar 310 inside the terminal tube 36 is also squeezed by the plug so that the connecting line 33 and the in-position line 37 are connected in series, and the symmetrical long connecting tube 31 and the slide bar 310 inside the terminal tube 36 also connect the entire circuit The four slide bars 310 are connected in series, so that the four slide bars 310 are all squeezed by the plug to make the circuits connected in series, so that the contact area between the plug and the contact piece 24 is complete, and at the same time, the plug pushes the block 38 to move toward the direction of the transfer column 21, and the block 38 drives the series block 39 fixedly connected thereto to move toward the direction of the line 37, and the series block 39 contacts the line 37 to connect the entire circuit in series, so that the plug pushes the block 38 to exceed the contact piece 24, so that the top of the plug exceeds the contact piece 24, to prevent the loose plug from directly reducing the contact area with the contact piece 24, and the power supply 35 supplies power to the indicator light 34, so that the indicator light 34 is on. The plug is connected in series with the four sliding bars 310, and the plug is used to squeeze the four sliding bars 310 into place so that the circuit is connected in series, and the series block 39 is moved to connect the circuit in series, indicating that the plug is in good contact with the pin and the plug is deep enough into the pin to make the indicator light 34 light up, avoiding the situation where the user cannot know the short circuit caused by the contact between the plug and the pin and the plug not being deep enough into the pin. When the four sliding bars 310 are not squeezed into place and the circuit is not connected in series, the power supply 35 will not be able to supply power to the indicator light 34, and the user judges that there is a problem when the indicator light 34 does not light up.

[0048] Furthermore, the block 38 moves in the direction of the adapter column 21, and the block 38 drives the connecting rod 41 rotatably connected thereto to move in the direction of the adapter column 21. Since the sliding column 44 is slidably connected to the shell 1, the connecting rod 41 pulls the outer frame 42 rotatably connected thereto to move in the direction of the opening piece 25, and the outer frame 42 drives the high-temperature resistant rubber block 43 fixedly connected thereto to move in the direction of the opening piece 25, and the high-temperature resistant rubber block 43 contacts the plug, and at the same time, the bottom of the high-temperature resistant rubber block 43 squeezes the lower rubber block 45, so that the lower rubber block 45 moves upward, and the two high-temperature resistant rubber blocks 43 and the two lower rubber blocks 45 combine to seal the gap between the plug and the plug interface 26, achieving the effect of sealing the connection between the plug and the pin, avoiding the situation where external dust and rainwater enter the interior of the shell 1 through the gap between the plug and the plug interface 26, avoiding the problem that dust and rainwater corrode the plug and the pin reduce its service life, and at the same time, the two high-temperature resistant rubber blocks 43 and the two lower rubber blocks 45 play the effect of fixing the plug to avoid the plug from loosening;

[0049] When the block 38 moves toward the transfer column 21, the block 38 drives the unlocking block 46 fixedly connected thereto to move toward the transfer column 21. The inner wall of the slot 47 squeezes the sliding rod 48, so that the sliding rod 48 slides from the right end to the left end of the slot 47. The unlocking block 46 squeezes the pop-up spring 49 so that the pop-up spring 49 accumulates force, and the sliding rod 48 slides into the fixed groove at the left end of the slot 47, so that the unlocking block 46 is fixed. At the same time, the block 38 is fixed, so that the plug cannot be pushed inward any further, achieving the effect of automatic limiting after installation, avoiding the problem of the plug being too deep inside the pin. Since the block 38 is fixed, the two high-temperature resistant rubber blocks 43 and the two lower The rubber block 45 continuously seals, and the two high-temperature resistant rubber blocks 43 and the two lower rubber blocks 45 continuously fix the plug, achieving the effect of locking the plug to prevent the plug from loosening and falling off. When the user needs to remove the plug, the user pushes the plug toward the pin and then lets go, and the plug is pushed into place block 38 to move toward the adapter column 21, and the placement block 38 pushes the unlocking block 46 to move toward the adapter column 21, and the sliding rod 48 moves out of the fixed groove at the left end of the slot 47, and the pop-up spring 49 extends to push the unlocking block 46 away from the adapter column 21. The unlocking block 46 pushes the placement block 38 to make the high-temperature resistant rubber block 43 and the lower rubber block 45 loosen the plug, and the plug can be smoothly taken out.

[0050] 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 novel intelligent bus duct plug pin, used for connecting a plug of a plug box, the novel intelligent bus duct plug pin comprises a housing (1), characterized in that: The shell (1) is provided with a connection component (2) for clamping the plug of the plug box, the shell (1) is provided with an indication component (3) for indicating that the connection between the plug and the plug pin is normal, the shell (1) is provided with a sealing component (4) for sealing the connection between the plug and the plug pin, and the shell (1) is provided with a cleaning component (5) for removing dust from the inside of the plug pin; The connection assembly (2) comprises an adapter column (21) fixedly connected to the inside of the housing (1); a connection sheet (22) is fixedly connected to the outside of the adapter column (21) by means of bolts; an end of the connection sheet (22) away from the adapter column (21) is rotatably connected to a rotating sheet (23); a side of the rotating sheet (23) away from the connection sheet (22) is fixedly connected to a contact sheet (24); and a side of the contact sheet (24) away from the rotating sheet (23) is fixedly connected to an opening sheet (25); An insertion port (26) is provided at one end of the housing (1) away from the adapter post (21); a proximity spring (27) is fixedly connected to the contact piece (24) near the outside; the proximity spring (27) is fixedly connected to the housing (1); and the connection piece (22) is symmetrically arranged on the outside of the adapter post (21); The indicating assembly (3) comprises a long connecting tube (31) fixedly connected to the inside of the housing (1); a series connection wire (32) is fixedly connected to the top of the long connecting tube (31); a connecting wire (33) is fixedly connected to the outside of the long connecting tube (31); an indicator light (34) is fixedly connected to the top of the series connection wire (32); a power supply (35) is fixedly connected to the top of the indicator light (34); an end of the connecting wire (33) away from the long connecting tube (31) is fixedly connected to a terminal tube (36); a position line (37) is fixedly connected to the top of the terminal tube (36); a position block (38) is slidably connected to the outside of the adapter column (21); a series connection block (39) is fixedly connected to the top of the position block (38); The long connecting tube (31) is slidably connected to a slide rod (310) inside, the slide rod (310) penetrates the contact piece (24), one end of the slide rod (310) close to the long connecting tube (31) is fixedly connected to a power connection block, the long connecting tube (31) is fixedly connected to a reset spring (311) inside, and the reset spring (311) is fixedly connected to the slide rod (310); The sealing assembly (4) comprises a connecting rod (41) rotatably connected to the top of the positioning block (38); one end of the connecting rod (41) away from the positioning block (38) is rotatably connected to an outer frame (42); a high temperature resistant rubber block (43) is fixedly connected inside the outer frame (42); a sliding column (44) is fixedly connected to the outside of the outer frame (42); the sliding column (44) is slidably connected to the outer shell (1); and a lower rubber block (45) is slidably connected inside the outer shell (1); The positioning block (38) is fixedly connected with an unlocking block (46) inside, a slot (47) is provided inside the unlocking block (46), a sliding rod (48) is slidably connected inside the slot (47), the sliding rod (48) is rotatably connected to the transfer column (21), and a pop-up spring (49) is fixedly connected to the side of the unlocking block (46) close to the transfer column (21), and the pop-up spring (49) is fixedly connected to the transfer column (21); The cleaning assembly (5) comprises a moving bar (51) slidably connected to the inside of the housing (1); a scraper (52) is slidably connected to the inside of the moving bar (51); an arc-shaped spring sheet (53) is fixedly connected to the inside of the moving bar (51); a wave spring sheet (54) is fixedly connected to the bottom of the moving bar (51); and one end of the wave spring sheet (54) away from the moving bar (51) is fixedly connected to the housing (1).

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