A fixing device for automatically taking power from a busbar

Abstract

The present invention discloses a fixing device for automatically taking power from a busbar, which relates to the field of conductive connection, and comprises: a conveying frame and a guide rail fixedly mounted on the top of the conveying frame, a sliding platform is mounted on the outside of the guide rail, and the sliding platform slides on the outside of the guide rail, a plurality of power transmission connection blocks are fixedly arranged on one side wall of the conveying frame, and the plurality of power transmission connection blocks are located on the same horizontal straight line, a power supply connection block is fixedly arranged on the lower end surface of the sliding platform, and contact-type power connection is performed between the power supply connection block and the power transmission connection block, and a tray for carrying parts is placed above the sliding platform. The present invention can isolate and protect the discharge end of the power transmission connection block when no power connection operation is performed through the action of the bridge component and the protection unit, thereby effectively avoiding injuries caused by accidental touch by the staff and avoiding the situation where external floating dust and impurities adhere to the discharge end and cause a short circuit.

Description

Technical Field

[0001] The invention relates to the field of conductive connection, in particular to a fixing device for automatically taking power from a busbar. Background Art

[0002] On the automated conveyor line, the parts to be assembled are transported to each assembly station via pallets. For this purpose, the pallets will stop intermittently on the guide rails, waiting for the staff or robot to pick up and place the parts.

[0003] The existing Chinese public document (CN113451857B) records a fixing device for automatic power supply of a busbar. The tray is indirectly fixed by the contact power supply of the conductive device and the power supply device. When the transmission device transfers the tray to the desired position and then stops running, the conductive device fixedly connected to the tray contacts the power supply device to generate current. The electromagnetic force generated by the contact between the conductive device and the power supply device indirectly fixes the tray. When the transmission device continues to operate with the tray, the sliding of the tray separates the conductive device and the power supply device, and no current and electromagnetic force are generated. The tray is transmitted forward along the guide device under the action of the transmission device. The problem of wires being entangled on the conveyor line body due to direct power supply is solved by contact intermittent power supply.

[0004] However, in the above-mentioned public scheme, the contact surface of the power supply group is exposed to the outside, and the outside of the power supply group will be blocked only when the conductive group is connected to the power supply group. Since the number of power supply groups on the conveyor line body corresponds to the number of workstations on the conveyor line body, that is, most of the power supply groups are exposed during work, the exposed power supply groups are very easy to be accidentally touched by the workers, and there is a risk of electric shock injury. In addition, the exposed power supply groups are also easy to be attached to various dusts and fibers in the working space, and it is also easy to cause a short circuit when the conductive group and the power supply group are contacted. Summary of the invention

[0005] The object of the present invention is to provide a fixing device for automatically taking power from a busbar, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixing device for automatically taking power from a busbar, comprising: a conveying frame and a guide rail fixedly mounted on the top of the conveying frame, a sliding platform is installed on the outside of the guide rail, and the sliding platform slides on the outside of the guide rail, a plurality of power transmission connection blocks are fixedly arranged on one side wall of the conveying frame, and the plurality of power transmission connection blocks are located on the same horizontal straight line, a power supply connection block is fixedly arranged on the lower end surface of the sliding platform, and the power supply connection block and the power supply connection block are contact-connected, a tray for carrying parts is placed above the sliding platform, an electromagnet structure is arranged inside the sliding platform, and when the power transmission connection block and the power supply connection block are connected to electricity, the electromagnet structure inside the sliding platform magnetically fixes the tray, and the electromagnet is a commonly used method in the public technology, and after the electromagnet is energized, it can magnetically fix the tray made of carbon alloy;

[0007] It also includes: a bridge component, which promotes the stable power connection between the power transmission connection block and the power supply connection block, and the bridge component is arranged between the power supply connection block and the power transmission connection block;

[0008] A protection unit, which is used to improve the safety of the power transmission connection block when discharging, and is installed outside the power transmission connection block.

[0009] Preferably, the power-connecting component includes an extension rod fixedly arranged on the power supply connection block near one end of the conveying frame body, and a triangular push block is fixedly arranged on the end of the extension rod near the power supply connection block, two copper contacts are fixedly installed on the end surface of the triangular push block near the power supply connection block, and the copper contacts are connected to the electromagnet structure inside the sliding platform through an electrical wire, a first slide is slidably installed inside the power supply connection block, and two power contacts are fixedly arranged on the end of the first slide away from the conveying frame body, a through hole is provided on the surface of the power supply connection block for the power contacts to extend out, a first spring is fixedly arranged on the end of the first slide away from the power contacts, the power contacts and the power supply connection block are also connected through an electrical wire, and the tip of the triangular push block faces the power supply connection block.

[0010] Preferably, the protection unit includes a cavity opened inside the power transmission connection block, and two symmetrically distributed rotating shafts are rotatably inserted inside the cavity, and a coil spring is fixedly arranged between the outer surface of the rotating shaft and the inner wall of the cavity, one end of the rotating shaft away from the conveying frame is fixedly sleeved with a protective plate, and the protective plate covers and shields the power contact, and a light touch component is also arranged on the outside of the rotating shaft, and the inner and outer ends of the coil spring are respectively fixed to the outer wall of the rotating shaft and the inner wall of the cavity.

[0011] Preferably, the light touch component includes a second slide plate slidably assembled on an end of the first spring away from the first slide plate, a second trapezoidal stop block is fixedly provided on the side wall of the second slide plate, and the second trapezoidal stop block slides into the interior of the cavity, an arc-shaped tooth plate is fixedly mounted on the outer surface of each rotating shaft, and a straight tooth plate is meshed and assembled between the two arc-shaped tooth plates, the straight tooth plate and the cavity are slidably assembled, and a first trapezoidal stop block is fixedly assembled on one end of the straight tooth plate close to the second slide plate, and the inclined surfaces of the first trapezoidal stop block and the second trapezoidal stop block abut against each other, and when the rotating shaft moves the straight tooth plate through the arc-shaped tooth plate, the second trapezoidal stop block can be pushed by the inclined surface of the first trapezoidal stop block, so that the second trapezoidal stop block and the second slide plate move toward the protective plate.

[0012] Preferably, a brush is fixedly provided on one end face of the protective plate close to the power transmission connection block. The brush is soft bristles, and the length of the soft bristles is greater than the distance between the protective plate and the power transmission connection block, that is, the brush is bent between the protective plate and the power transmission connection block.

[0013] Preferably, an air blowing unit is also provided inside the cavity, and the air blowing unit includes a gear differential fixedly hoisted on an end face of the cavity away from the conveying frame body, the input end of the gear differential is parallel to the rotating shaft, and a plurality of tooth blocks equidistantly distributed around the circumference are fixedly provided on the inner arc surface of the arc-shaped tooth plate, a transmission gear is rotatably provided on an end face of the cavity close to the conveying frame body, and the transmission gear is movably meshed with the tooth block, and a plurality of ratchets equidistantly distributed around the circumference are fixedly provided on the inner wall of the transmission gear, a movable ratchet is fixedly provided on the input end of the gear differential, and the movable ratchet is movably meshed with the ratchet, and an air delivery component is provided on the output end of the gear differential, and when the rotating shaft rotates with the arc-shaped tooth plate, the transmission gear can be rotated through the tooth block.

[0014] Preferably, the air transmission component includes a three-way joint fixedly arranged inside the cavity, a ventilation groove is opened between the outer wall of each through hole and the three-way joint, and two of the ventilation grooves are fixedly connected to two of the ports of the three-way joint, a sealing cylinder is fixedly mounted on the outer wall of the gear differential, and a piston disk is slidably mounted inside the sealing cylinder, an end surface of the piston disk away from the first slide is fixedly provided with a sliding rod sliding through the sealing cylinder, and a second spring is provided between the other end of the piston disk and the sealing cylinder, a through pipe is fixedly arranged between the sealing cylinder and the last port of the three-way joint, and a first one-way valve is fixedly arranged on the outer wall of the through pipe, and a second one-way valve is fixedly arranged on the outer wall of the sealing cylinder, and a cam capable of pushing the sliding rod is fixedly mounted on the output end of the gear differential, and when the output end of the gear differential rotates with the cam, the sliding rod and the piston disk can move back and forth in cooperation with the action of the second spring.

[0015] Preferably, the first one-way valve is for one-way transportation from the sealing cylinder to the three-way joint, and the second one-way valve is for one-way transportation from the outside to the inside of the sealing cylinder.

[0016] Preferably, the interface between each group of the ventilation grooves and the through hole is located on a side of the through hole close to the sliding platform, that is, the power transmission connection block is placed vertically, and the docking port is located at the top of the through hole, and the air is sprayed from top to bottom.

[0017] Preferably, an end surface of the electrical contact away from the first slide plate is provided with a chamfered portion, and the design of the chamfered portion facilitates the ejected gas to clean the end of the electrical contact.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Through the functions of the bridge component and the protection unit, the present invention can isolate and protect the discharge end of the power transmission connection block when no power connection operation is performed, thereby effectively preventing workers from being injured by accidental touch and preventing external floating dust and impurities from adhering to the discharge end and causing a short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

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

[0022] Figure 3 This is a schematic diagram of the triangular push block and the protective plate structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the power transmission connection block of the present invention;

[0024] Figure 5 It is a schematic diagram of the position distribution structure of the gear differential and the three-way joint of the present invention;

[0025] Figure 6 It is a schematic diagram of the coil spring structure of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0027] Figure 8 It is a schematic diagram of the ventilation groove structure of the present invention.

[0028] In the figure: 1. conveying frame; 2. guide rail; 3. sliding platform; 4. power transmission connection block; 5. power supply connection block; 6. extension rod; 7. triangular push block; 8. protective plate; 9. brush; 10. rotating shaft; 11. arc tooth plate; 12. straight tooth plate; 13. first trapezoidal block; 14. first slide plate; 15. power contact; 16. second slide plate; 17. first spring; 18. second trapezoidal block; 19. through hole; 20. cavity; 21. gear differential; 22. three-way joint; 23. sealing cylinder; 24. cam; 25. coil spring; 26. tooth block; 27. transmission gear; 28. movable ratchet; 29. ​​piston disc; 30. slide rod; 31. second spring; 32. first one-way valve; 33. second one-way valve; 34. ventilation groove. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1: Please refer to Figure 1-Figure 4 , a fixing device for automatically taking power from a busbar shown in the figure comprises: a conveying frame 1 and a guide rail 2 fixedly mounted on the top of the conveying frame 1, a sliding platform 3 is mounted on the outside of the guide rail 2, and the sliding platform 3 slides on the outside of the guide rail 2, and a plurality of power transmission connection blocks 4 are fixedly arranged on one side wall of the conveying frame 1, and the plurality of power transmission connection blocks 4 are located on the same horizontal straight line, a power supply connection block 5 is fixedly arranged on the lower end surface of the sliding platform 3, and the power supply connection block 5 is contact-connected with the power transmission connection block 4, a tray for carrying parts is placed above the sliding platform 3, and an electromagnet structure is arranged inside the sliding platform 3, and when the power transmission connection block 4 is connected to the power supply connection block 5, the electromagnet structure inside the sliding platform 3 magnetically fixes the tray, and the electromagnet is a commonly used method in the public technology, and when the electromagnet is energized, the tray made of carbon alloy can be magnetically fixed;

[0031] It also includes: a bonding component, which promotes stable power connection between the power transmission connection block 4 and the power supply connection block 5, and the bonding component is arranged between the power supply connection block 5 and the power transmission connection block 4;

[0032] The protection unit is used to improve the safety of the discharge of the power transmission connection block 4 , and the protection unit is installed outside the power transmission connection block 4 .

[0033] The electrical connection component includes an extension rod 6 fixedly arranged on one end of the power supply connection block 5 close to the conveying frame body 1, and a triangular push block 7 is fixedly arranged on the end of the extension rod 6 close to the power supply connection block 4, and two copper contacts are fixedly installed on the end surface of the triangular push block 7 close to the power supply connection block 5, and the copper contacts are connected to the electromagnet structure inside the sliding platform 3 through an electrical wire, and a first slide plate 14 is slidably installed inside the power supply connection block 4, and two power contacts 15 are fixedly arranged on the end of the first slide plate 14 away from the conveying frame body 1, and a through hole 19 for the power contact 15 to extend out is opened on the surface of the power supply connection block 4, and a first spring 17 is fixedly arranged on the end of the first slide plate 14 away from the power contact 15, and the power contact 15 and the power supply connection block 4 are also connected through an electrical wire, and the tip of the triangular push block 7 faces the power supply connection block 4.

[0034] The protection unit includes a cavity 20 opened inside the power transmission connection block 4, and two symmetrically distributed rotating shafts 10 are rotatably inserted inside the cavity 20, and a coil spring 25 is fixedly arranged between the outer surface of the rotating shaft 10 and the inner wall of the cavity 20, and one end of the rotating shaft 10 away from the conveying frame 1 is fixedly sleeved with a protective plate 8, and the protective plate 8 is connected to the electric contact 15 to cover and shield it. A light touch component is also arranged on the outside of the rotating shaft 10, and the inner and outer ends of the coil spring 25 are respectively fixed to the outer wall of the rotating shaft 10 and the inner wall of the cavity 20.

[0035] The light touch component includes a second slide plate 16 slidably assembled on the end of the first spring 17 away from the first slide plate 14, a second trapezoidal stop block 18 is fixedly provided on the side wall of the second slide plate 16, and the second trapezoidal stop block 18 slides into the interior of the cavity 20, an arc-shaped tooth plate 11 is fixedly mounted on the outer surface of each rotating shaft 10, and a straight tooth plate 12 is meshed and assembled between the two arc-shaped tooth plates 11, the straight tooth plate 12 and the cavity 20 are slidably assembled, and a first trapezoidal stop block 13 is fixedly assembled on the end of the straight tooth plate 12 close to the second slide plate 16, and the inclined surfaces of the first trapezoidal stop block 13 and the second trapezoidal stop block 18 are abutted against each other, when the rotating shaft 10 moves the straight tooth plate 12 through the arc-shaped tooth plate 11, the second trapezoidal stop block 18 can be pushed by the inclined surface of the first trapezoidal stop block 13, so that the second trapezoidal stop block 18 and the second slide plate 16 move toward the protective plate 8.

[0036] A brush 9 is fixedly provided on one end face of the protective plate 8 close to the power transmission connection block 4. The brush 9 is soft bristles, and the length of the soft bristles is greater than the distance between the protective plate 8 and the power transmission connection block 4, that is, the brush 9 is bent between the protective plate 8 and the power transmission connection block 4.

[0037] Working principle: When the sliding platform 3 carries the pallet and slides outside the guide rail 2, whenever the sliding platform 3 is about to move to the work station, the power supply connection block 5 at the bottom of the sliding platform 3 contacts the power transmission connection block 4. During the power connection process, the extension rod 6 pushes the protective plate 8 open through the triangular push block 7. After pushing open, the extension rod 6 continues to move with the triangular push block 7 until the two copper contacts on the surface of the extension rod 6 are opposite to the two through holes 19, and the sliding platform 3 will also stop moving at this time;

[0038] During the deflection of the protection plate 8 with the rotating shaft 10, the arc-shaped tooth plate 11 pushes the straight tooth plate 12, and the second trapezoidal block 18 and the second slide plate 16 are pushed out by the first trapezoidal block 13. It should be emphasized here that the first trapezoidal block 13 and the second trapezoidal block 18 are both embedded with magnetic blocks in the two mutually fitting inclined surfaces, and the mutually fitting magnetic poles of the two magnetic blocks are opposite, that is, when the second trapezoidal block 18 does not change its position, the electrical contact 15 is completely retracted inside the through hole 19, and when the first trapezoidal block 13 pushes the second trapezoidal block 18, the second slide plate 16, the first spring 17 and the first slide plate 1 4 makes the power contact 15 extend out of the through hole 19, at which time the power contact 15 can contact the copper contact sheet on the surface of the triangular push block 7 to complete the power connection operation. After the power connection is completed, the electromagnet inside the sliding platform 3 can be triggered. After the electromagnet is started, the carbon alloy tray carried on the sliding platform 3 can be magnetically fixed, which is convenient for the staff at the workstation to take and place the parts on the tray. After the operation is completed, the sliding platform 3 is driven again through the existing transmission structure to allow the triangular push block 7 and the extension rod 6 to continue to move, thereby separating from the protective plate 8. The protective plate 8 can be reset and swung under the action of the coil spring 25 to re-connect the end of the electric contact 15 for isolation.

[0039] In this solution, each time the protective plate 8 swings, it can carry the brush 9 to clean the dust and impurities on the surface of the power transmission connection block 4. At the same time, the brush 9 can also touch the end face of the power contact 15, thereby preventing the surface of the power contact 15 from being easily adhered to impurities, which may easily cause short circuits and wear. The brush 9 is made of nylon.

[0040] It should be noted that the end faces of the triangular push block 7 and the extension rod 6 close to the conveying frame body 1 are not flush, the end face of the triangular push block 7 is closer to the conveying frame body 1, and the end face difference between the triangular push block 7 and the extension rod 6 is a, the maximum distance that the power contact 15 extends out of the through hole 19 is b, and the spacing between the power transmission connection block 4 and the protective plate 8 is c, and the relationship between the three is b<a<c, that is, after the triangular push block 7 is separated from the power contact 15, even if the extension rod 6 can still limit the protective plate 8 from being reset, the power contact 15 will not wear against the extension rod 6 at this time, thereby effectively reducing the degree of wear of the power contact 15.

[0041] Example 2: Please refer to Figure 5-Figure 8This embodiment is a further explanation of the first embodiment. An air blowing unit is further provided inside the cavity 20. The air blowing unit includes a gear differential 21 fixedly mounted on an end face of the cavity 20 away from the conveying frame body 1. The input end of the gear differential 21 is parallel to the rotating shaft 10. The inner arc surface of the arc-shaped tooth plate 11 is fixedly provided with a plurality of tooth blocks 26 equidistantly distributed around the circumference. A transmission gear 27 is rotatably provided on an end face of the cavity 20 close to the conveying frame body 1, and the transmission gear 27 is movably meshed with the tooth block 26. A plurality of ratchets equidistantly distributed around the circumference are fixedly provided on the inner wall of the transmission gear 27. A movable ratchet 28 is fixedly provided on the input end of the gear differential 21, and the movable ratchet 28 is movably meshed with the ratchet. An air delivery component is provided at the output end of the gear differential 21. When the rotating shaft 10 rotates with the arc-shaped tooth plate 11, the transmission gear 27 can be rotated through the tooth block 26.

[0042] The gas transmission component includes a three-way joint 22 fixedly arranged inside the cavity 20, a ventilation groove 34 is opened between the outer wall of each through hole 19 and the three-way joint 22, and the two ventilation grooves 34 are fixedly connected to two ports of the three-way joint 22, and the outer wall of the gear differential 21 is fixedly provided with a sealing cylinder 23, and the interior of the sealing cylinder 23 is slidably mounted with a piston disk 29, and the end surface of the piston disk 29 away from the first slide 14 is fixedly provided with a sliding rod 30 that slides through the sealing cylinder 23, and the other end surface of the piston disk 29 is fixedly provided with a sliding rod 30 that slides through the sealing cylinder 23, and the other end surface of the piston disk 29 is fixedly provided with a sliding rod 30 that slides through the sealing cylinder 23. A second spring 31 is arranged between the end and the sealing cylinder 23, a through pipe is fixedly arranged between the sealing cylinder 23 and the last port of the three-way joint 22, and a first one-way valve 32 is fixedly arranged on the outer wall of the through pipe, a second one-way valve 33 is fixedly arranged on the outer wall of the sealing cylinder 23, and a cam 24 capable of pushing the sliding rod 30 is fixedly mounted on the output end of the gear differential 21. When the output end of the gear differential 21 rotates with the cam 24, the sliding rod 30 and the piston disc 29 can move back and forth in cooperation with the action of the second spring 31.

[0043] The first one-way valve 32 is used for one-way transportation from the sealing cylinder 23 to the three-way joint 22 , and the second one-way valve 33 is used for one-way transportation from the outside to the inside of the sealing cylinder 23 .

[0044] The interface between each set of ventilation grooves 34 and the through hole 19 is located on the side of the through hole 19 close to the sliding platform 3, that is, the power transmission connection block 4 is placed vertically, and the interface is located at the top of the through hole 19, and the air is sprayed from top to bottom.

[0045] An end surface of the connecting electrical contact 15 away from the first slide plate 14 is provided with a chamfered portion, and the design of the chamfered portion facilitates the ejected gas to clean the end of the connecting electrical contact 15 .

[0046] In this embodiment: the protective plate 8 is pushed by the triangular push block 7 to rotate the shaft 10, and the arc-shaped toothed plate 11 drives the transmission gear 27 to rotate through the tooth block 26. However, the rotation of the transmission gear 27 does not trigger the rotation of the input end of the gear differential 21. When the shaft 10 is reset and rotated, the reverse rotation of the transmission gear 27 can drive the movable ratchet 28 and the input end of the gear differential 21 to rotate through the ratchet. At this time, the output end of the gear differential 21 can rotate multiple circles with the cam 24. During the rotation process, the second spring 31 is used to make the piston disc 29 reciprocate inside the sealing cylinder 23. The reciprocating advancement of the piston disc 29 cooperates with the first one-way valve 32 and the second one-way valve 33, so that the high-pressure airflow can be ejected through the through hole 19.

[0047] When the high-pressure airflow is ejected, it is from top to bottom, and at this time the power contact 15 has retracted into the inside of the through hole 19, and the chamfered portion at the end of the power contact 15 can allow the airflow to pass through the entire end surface of the power contact 15, thereby further ensuring the cleanliness of the end of the power contact 15 and avoiding the adhesion of dust particles.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] 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 fixing device for automatically taking power from a busbar, characterized in that: include: A conveying frame (1) and a guide rail (2) fixedly mounted on the top of the conveying frame (1); a sliding platform (3) is mounted on the outside of the guide rail (2); the sliding platform (3) slides on the outside of the guide rail (2); a plurality of power transmission connection blocks (4) are fixedly mounted on one side wall of the conveying frame (1); the plurality of power transmission connection blocks (4) are located on the same horizontal straight line; a power supply connection block (5) is fixedly mounted on the lower end surface of the sliding platform (3); the power supply connection block (5) and the power supply connection block (4) are connected in a contact manner; a tray for carrying parts is placed above the sliding platform (3); an electromagnet structure is disposed inside the sliding platform (3); when the power transmission connection block (4) and the power supply connection block (5) are connected in an energized state, the electromagnet structure inside the sliding platform (3) magnetically fixes the tray; Also includes: A bridge component, which facilitates stable power connection between the power transmission connection block (4) and the power supply connection block (5), the bridge component being arranged between the power supply connection block (5) and the power transmission connection block (4); A protection unit, the protection unit being used to improve the safety of discharge of the power transmission connection block (4), the protection unit being mounted outside the power transmission connection block (4); The electrical connection component comprises an extension rod (6) fixedly arranged at one end of the power supply connection block (5) close to the conveying frame (1), and a triangular push block (7) is fixedly arranged at one end of the extension rod (6) close to the power supply connection block (4), two copper contacts are fixedly installed on one end surface of the triangular push block (7) close to the power supply connection block (5), and the copper contacts are connected to the electromagnet structure inside the sliding platform (3) through an electrical wire, a first slide plate (14) is slidably installed inside the power supply connection block (4), and two power contacts (15) are fixedly arranged at one end of the first slide plate (14) away from the conveying frame (1), a through hole (19) for the power contacts (15) to extend out is opened on the surface of the power supply connection block (4), a first spring (17) is fixedly arranged at one end of the first slide plate (14) away from the power contacts (15), and the power contacts (15) and the power supply connection block (4) are also connected through an electrical wire; The protection unit comprises a cavity (20) opened inside the power transmission connection block (4), and two symmetrically distributed rotating shafts (10) are rotatably inserted inside the cavity (20), and a coil spring (25) is fixedly arranged between the outer surface of the rotating shaft (10) and the inner wall of the cavity (20), and a protection plate (8) is fixedly sleeved on one end of one of the rotating shafts (10) away from the conveying frame (1), and the protection plate (8) has a covering and shielding effect on the power contact (15), and a light touch component is also arranged on the outside of the rotating shaft (10).

2. A fixing device for automatically taking power from a busbar according to claim 1, characterized in that: The light touch component comprises a second slide plate (16) slidably mounted on an end of the first spring (17) away from the first slide plate (14); a second trapezoidal stop block (18) is fixedly mounted on a side wall of the second slide plate (16), and the second trapezoidal stop block (18) slides into the interior of the cavity (20); an arc-shaped tooth plate (11) is fixedly mounted on the outer surface of each rotating shaft (10), and a straight tooth plate (12) is meshed and mounted between the two arc-shaped tooth plates (11); the straight tooth plate (12) and the cavity (20) are slidably mounted; a first trapezoidal stop block (13) is fixedly mounted on an end of the straight tooth plate (12) close to the second slide plate (16), and the inclined surfaces of the first trapezoidal stop block (13) and the second trapezoidal stop block (18) abut against each other.

3. A fixing device for automatically taking power from a busbar according to claim 1, characterized in that: A brush (9) is fixedly provided on one end surface of the protective plate (8) close to the power transmission connection block (4); the brush (9) is soft bristles, and the length of the soft bristles is greater than the distance between the protective plate (8) and the power transmission connection block (4).

4. A fixing device for automatically taking power from a busbar according to claim 2, characterized in that: An air blowing unit is also provided inside the cavity (20), and the air blowing unit comprises a gear differential (21) fixedly mounted on an end face of the cavity (20) away from the conveying frame (1), the input end of the gear differential (21) being parallel to the rotating shaft (10), a plurality of tooth blocks (26) equidistantly distributed around the circumference being fixedly provided on the inner arc surface of the arc-shaped tooth plate (11), a transmission gear (27) rotatably provided on an end face of the cavity (20) close to the conveying frame (1), the transmission gear (27) being movably meshed with the tooth block (26), a plurality of ratchet teeth equidistantly distributed around the circumference being fixedly provided on the inner wall of the transmission gear (27), a movable ratchet (28) being fixedly sleeved on the input end of the gear differential (21), the movable ratchet (28) being movably meshed with the ratchet teeth, and an air delivery component is provided at the output end of the gear differential (21).

5. A fixing device for automatically taking power from a busbar according to claim 4, characterized in that: The gas delivery component comprises a three-way joint (22) fixedly arranged inside the cavity (20), a ventilation groove (34) is provided between the outer wall of each through hole (19) and the three-way joint (22), and two ventilation grooves (34) are fixedly connected to two ports of the three-way joint (22), a sealing cylinder (23) is fixedly mounted on the outer wall of the gear differential (21), and a piston disk (29) is slidably mounted inside the sealing cylinder (23), and an end surface of the piston disk (29) away from the first slide plate (14) is fixedly provided A slide rod (30) is provided which slides through the sealing cylinder (23), and a second spring (31) is provided between the other end of the piston disc (29) and the sealing cylinder (23). A through pipe is fixedly provided between the sealing cylinder (23) and the last port of the three-way joint (22), and a first one-way valve (32) is fixedly provided on the outer wall of the through pipe. A second one-way valve (33) is fixedly provided on the outer wall of the sealing cylinder (23). A cam (24) capable of pushing the slide rod (30) is fixedly provided on the output end of the gear differential (21).

6. A fixing device for automatically taking power from a busbar according to claim 5, characterized in that: The first one-way valve (32) is used for one-way transportation from the sealing cylinder (23) to the three-way joint (22), and the second one-way valve (33) is used for one-way transportation from the outside to the inside of the sealing cylinder (23).

7. A fixing device for automatically taking power from a busbar according to claim 5, characterized in that: The interface between each group of the ventilation grooves (34) and the through hole (19) is located on a side of the through hole (19) close to the sliding platform (3).

8. A fixing device for automatically taking power from a busbar according to claim 1, characterized in that: An end surface of the electrical contact (15) away from the first slide plate (14) is provided with a chamfered portion.

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