A reverse charging battery swap cabinet mounting plate assembly positioning line marking device

Abstract

The application relates to the technical field of battery replacement cabinet assembly, in particular to a line marking device for assembling and positioning a mounting plate of a reverse charging battery replacement cabinet, which comprises a fixing group, the fixing group comprises a hollow frame and a magnet plate embedded on the surface of the hollow frame, and further comprises a flexible ruler which is installed in the inside of the hollow frame through a ruler spring winding, and one end of the flexible ruler penetrates through the bottom of the hollow frame. Through the setting of the point-shaped line marking part, the staff can perform dotted line marking during the movement of the point-shaped line marking part. When the moving angle of the movable frame deviates, the adjacent dotted lines are in a non-parallel state. Accordingly, the staff can judge the state of the positioning point in time before punching. In addition, the staff can push the stamping part out through the pushing and extruding part, can cover the paint on the inner wall of the battery replacement cabinet, and can quickly determine the positioning point, so that the problem that the current line marking mode for assembling part battery replacement cabinets is easy to cause the deviation of the positioning points on both sides and affects the assembly effect of the subsequent mounting plate is solved.

Description

Technical Field

[0001] This invention relates to the field of battery swapping cabinet assembly technology, specifically to a marking device for assembling and positioning the mounting plate of a reverse charging battery swapping cabinet. Background Technology

[0002] A battery swapping cabinet is an intelligent device that provides battery swapping services for electric vehicles (mainly electric two-wheelers). A reverse charging battery swapping cabinet is one that can automatically switch to using a fully charged battery inside the cabinet as a backup power source when the mains power is interrupted, so as to maintain the operation of its own control system and continue to provide battery swapping services. When assembling the battery swapping cabinet, the staff needs to accurately and stably install the mounting plates used to support the batteries and various electrical equipment inside the frame.

[0003] Currently, some battery swapping cabinet mounting plates are not pre-drilled before use. Staff can measure and accurately drill holes on-site according to the actual situation. Before drilling, staff need to measure the frame and mark the drilling points. If the measuring tape moves during this process, the positioning points on the same straight line will deviate, which will affect the levelness of the mounting plate during subsequent assembly and thus affect the use of the battery swapping cabinet. Summary of the Invention

[0004] The purpose of this invention is to provide a marking device for assembling and positioning the mounting plate of a reverse charging battery swapping cabinet. During the movement of the dotted marking section, dashed lines can be drawn. When the moving angle of the movable frame deviates, adjacent dashed lines become non-parallel. Based on this, the operator can promptly judge the state of the positioning point before drilling. Furthermore, by pushing the pressing section to push out the stamping part, the operator can apply paint to the inner wall of the battery swapping cabinet, thereby quickly determining the positioning point. This solves the problem that the marking method currently used in some battery swapping cabinet assemblies easily leads to deviations in the positioning points on both sides, affecting the subsequent assembly effect of the mounting plate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a marking device for assembling and positioning a reverse charging battery swapping cabinet mounting plate, comprising a fixing assembly, wherein the fixing assembly includes a hollow frame and a magnetic plate embedded in the surface of the hollow frame, and further comprising: A flexible measuring tape is installed inside a hollow frame by being wound around a ruler spring, with one end of the flexible measuring tape penetrating through the bottom of the hollow frame; The stretching assembly includes a movable frame fixed to one end of the flexible measuring tape, a dotted marking section installed inside the movable frame, and a fixed point section set inside the movable frame. Indicators are fixed on both sides of the movable frame to indicate the measurement position. The dotted marking section includes an anti-detachment rod that movably passes through the movable frame, a rotating shaft that is slidably sleeved on the surface of the anti-detachment rod, and multiple coating parts embedded on the surface of the rotating shaft. The coating parts contact the inner wall of the battery swapping cabinet and rotate to form dotted lines. The positioning part includes a stamp, an ink guide fixed to the stamp, and a force-bearing component fixed to the stamp. The surface of the force-bearing component is slidably connected to the inner wall of the movable frame. The force-bearing component extends out of the movable frame and contacts the inner wall of the battery swapping cabinet to form a dot-shaped positioning mark.

[0006] Preferably, the fixed point further includes a hollow tube fixed to one end of the force-bearing member, the hollow tube slidingly passing through the movable frame, and the ink guide passing through the hollow tube.

[0007] Preferably, the bottom of the inner wall of the movable frame is provided with a groove, the top of the movable frame is provided with a feed port, a plug is detachably connected to the feed port, and the interior of the movable frame is provided with a feeding part, the feeding part including: The actuating mechanism is located inside the movable frame; The sponge board is installed on the pushing mechanism; The suction plate is fixed to the bottom of the sponge board.

[0008] Preferably, the actuating mechanism includes: The skateboard is slidably connected inside the movable frame, and the sponge board is fixed to the surface of the skateboard; Rectangular plates are fixed to the surfaces on both sides of the skateboard; The spring clip abuts between the movable frame and the rectangular plate.

[0009] Preferably, the movable frame is provided with a pressing part, the pressing part comprising: A bare rod slides through the movable frame; A collar is used to fix the surface of the smooth rod. A pressure plate is fixed to one end of the light rod. The surface of the pressure plate is in contact with the surface of the ink guide. A T-shaped block is fixed on the surface of the pressure plate. A T-shaped groove is opened on the surface of the force-bearing component. The surface of the T-shaped block is slidably connected to the inner wall of the T-shaped groove. The first spring is sleeved on the surface of the smooth rod, and the two ends of the first spring abut against the inner wall of the movable frame and the surface of the collar, respectively.

[0010] Preferably, the surface of the hollow frame is provided with an anti-slip part, the anti-slip part comprising: Horizontal panel, sliding through a hollow frame; A rotating cylinder is rotatably connected to one end of a horizontal plate, and the rotating cylinder is in contact with a flexible measuring tape.

[0011] Preferably, an extension assembly is installed on the movable frame, the extension assembly including an adsorption part and a moving part disposed on the movable frame, the adsorption part including: The magnetic block slides through the moving frame; A baffle is fixed to one end of the magnet. The third spring is located inside the movable frame, and its two ends abut against the surface of the baffle and the inner wall of the movable frame, respectively.

[0012] Preferably, the moving group includes: The movable frame slides through the active frame; A wedge-shaped component is fixed to one end of the movable frame. The surface of the wedge-shaped component is slidably connected to the inner wall of the movable frame and in contact with the surface of the magnet.

[0013] Preferably, a balancing assembly is installed on the hollow frame. The balancing assembly includes a rotating component rotatably connected to the hollow frame, a viewing tube fixed to the bottom of the rotating component, and a collection hopper fixed to the bottom of the viewing tube. A limiting hole is provided on the surface of the rotating component and the inner wall of the viewing tube. The balancing assembly also includes a limiting part disposed on the hollow frame, the limiting part comprising: A push rod slides through the hollow frame, with one end of the push rod contacting the inner wall of the limiting hole; A disc is fixed to the surface of the push rod; The second spring is sleeved on the surface of the push rod, and the two ends of the second spring abut against the inner wall of the hollow frame and the surface of the disc, respectively.

[0014] Preferably, a flow guide is installed inside the rotating component, the flow guide comprising: The telescopic rod is fixed to the top of the inner wall of the rotating part; The feeding hopper is fixed to one end of the telescopic piston rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the setting of the dot-shaped marking part, allows the operator to make dotted lines while moving the dot-shaped marking part. When the moving angle of the movable frame deviates, the adjacent dotted lines will be non-parallel, so that the operator can judge the status of the positioning point in time before drilling. During the dotted line marking process, the operator pushes the pressing part to push out the stamping part, which can cover the paint on the inner wall of the battery swapping cabinet, thereby quickly determining the positioning point for subsequent drilling operations. This solves the problem that the marking method currently used in some battery swapping cabinet assembly is prone to deviation of the positioning points on both sides, affecting the subsequent assembly effect of the mounting plate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention used in a battery swapping cabinet; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of another state of the present invention; Figure 4 This is a three-dimensional structural diagram of the present invention, showing the hollow frame and storage box cut open and the anti-slip part removed; Figure 5 This is a three-dimensional structural diagram of the present invention, showing the balancing assembly removed and the hollow frame, rotating component, visual tube, and collection hopper cut open. Figure 6 This is a three-dimensional structural diagram of the flexible measuring tape and the stretching assembly in this invention; Figure 7 This is a three-dimensional structural diagram of the present invention, showing the disassembly of the dotted marking section and the removal of the plug; Figure 8 This is a three-dimensional structural diagram of the present invention with the movable frame cut open and the upper arc-shaped component removed; Figure 9 This is a three-dimensional structural diagram of the movable frame cut open according to the present invention; Figure 10 This is a three-dimensional structural diagram of the fixed-point section and the extrusion section in this invention; Figure 11 This is a three-dimensional structural diagram of the present invention, showing the separation of the fixed part and the extrusion part, and the cutting of the force-bearing component and the hollow tube. Figure 12 This is a three-dimensional structural diagram of the movable frame cut open according to the present invention; Figure 13 This is a three-dimensional structural diagram of the adsorption section and the moving assembly in this invention; Figure 14 For the present invention Figure 5 A magnified three-dimensional structural diagram at point A in the middle.

[0017] In the diagram: 100, Fixed assembly; 110, Hollow frame; 120, Magnetic plate; 130, Storage box; 140, Anti-slip part; 141, Horizontal plate; 142, Rotating cylinder; 200, Flexible measuring tape; 300, Stretching assembly; 310, Movable frame; 320, Dotted marking part; 321, Anti-detachment rod; 322, Rotating shaft; 323, Coating component; 324, Screw sleeve; 330, Arc-shaped component; 340, Feeding part; 341, Pushing mechanism; 3411, Slide plate; 3412, Rectangular plate; 3413, Spring; 342, Sponge board; 343, Suction plate; 350, Support plate; 360, Fixed point part; 361, Stamping component; 362, Ink guide component; 363, Force-bearing component; 364. Hollow tube; 370, extrusion section; 371, smooth rod; 372, collar; 373, first spring; 374, pressure plate; 380, T-block; 390, ball bearing; 400, balancing assembly; 410, rotating component; 420, viewing tube; 430, collection hopper; 440, limiting frame; 450, flow guide; 451, telescopic rod; 452, discharge hopper; 460, limiting part; 461, push rod; 462, disc; 463, second spring; 500, indicator; 600, extension assembly; 610, adsorption part; 611, magnet; 612, baffle; 613, third spring; 620, moving assembly; 621, moving frame; 622, wedge-shaped component; 630, protective frame. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-14A marking device for assembling and positioning a reverse charging battery swapping cabinet mounting plate includes a fixing group 100. The fixing group 100 includes a hollow frame 110 and a magnetic plate 120 embedded in the surface of the hollow frame 110. When the magnetic plate 120 is attached to the inner wall of the battery swapping cabinet, it can be attracted to the inside of the battery swapping cabinet. A flexible ruler 200 is installed inside the hollow frame 110 by a ruler spring. One end of the flexible ruler 200 passes through the bottom of the hollow frame 110 and is installed with a tensioning group 300. The tensioning group 300 includes a movable frame 310 fixed to one end of the flexible ruler 200. The hollow frame 110 is attracted to the inner wall of the battery swapping cabinet. While the operator holds the hollow frame 110 to stabilize its position, he pulls the movable frame 310. The flexible ruler 200 unfolds and guides the movement of the movable frame 310. The movement distance of the movable frame 310 can be measured. Indicators 500 are fixed on both sides of the surface of the movable frame 310. When the movable frame 310 moves, the operator can determine the moving position by observing the direction of the indicators 500. A dotted marking section 320 is installed inside the movable frame 310. The dotted marking section 320 includes an anti-detachment rod 321 that movably passes through the movable frame 310, a rotating shaft 322 that slides on the surface of the anti-detachment rod 321, several applicators 323 embedded on the surface of the rotating shaft 322, and threaded sleeves 324 that are threaded to both ends of the anti-detachment rod 321. When the threaded sleeves 324 are tightened by the operator and installed at both ends of the anti-detachment rod 321, the anti-detachment rod 321 can be stably positioned within the movable frame 310. At this time, the position of the rotating shaft 322 is determined accordingly. The surface of the coating component 323 contacts the inner wall of the battery swapping cabinet. As the operator pulls the movable frame 310, the rotating shaft 322 rotates due to friction, causing several coating components 323 to intermittently contact the inner wall of the battery swapping cabinet, creating a dotted line effect. This provides a reference line for the subsequent installation of the mounting plate, preventing misalignment during assembly. The long dotted lines facilitate judging the horizontality of the markings. When a marked line is misaligned, the dotted line or its extension will intersect. Arc-shaped components 330 are fixed at the top and bottom of the inner wall of the movable frame 310. These arc-shaped components 330 cover the gap between the rotating shaft 322 and the movable frame 310, ensuring that only one coating component 323 contacts the inner wall of the battery swapping cabinet at a time. The forming component 330 and the coating component 323 are in a non-contact state to reduce friction. The movable frame 310 has an internal feeding section 340, which includes a pushing mechanism 341 inside the movable frame 310, a sponge plate 342 mounted on the pushing mechanism 341, and a suction plate 343 fixed to the bottom of the sponge plate 342. A groove is formed at the bottom of the inner wall of the movable frame 310, and a feeding port is formed at the top of the movable frame 310. A detachable plug is connected to the feeding port. The operator adds paint into the movable frame 310 through the feeding port. The paint drips onto the sponge plate 342, and as the rotating shaft 322 and the coating component 323 rotate, the paint is applied to the surface of the coating component 323 through contact between the sponge plate 342 and the coating component 323.When the applicator 323 rotates and contacts the inner wall of the battery swapping cabinet, it applies paint to the inner wall, achieving a marking effect. When the sponge board 342 is saturated with paint, excess paint drips into the groove. The suction plate 343 absorbs the paint and supplies it to the sponge board 342, which is short of paint. When the applicator 323 squeezes the sponge board 342, the pushing mechanism 341 moves, providing a movable space for the squeezing between the sponge board 342 and the applicator 323. The pushing mechanism 341 includes a sliding plate 3411 slidably connected inside the movable frame 310 and rectangular plates 3412 fixed to both sides of the sliding plate 3411. The sponge board 342 is fixed. A rectangular plate 3412 is slidably connected to the inner wall of the movable frame 310, fixed to the surface of the slide plate 3411, guiding the movement of the slide plate 3411. A spring piece 3413 abuts against the movable frame 310 and the rectangular plate 3412. The spring piece 3413, with its elastic force, assists the slide plate 3411 and the sponge plate 342 in returning to their original positions after the sponge plate 342 is subjected to force and squeezes the slide plate 3411 to displacement, ensuring the adhesion between the sponge plate 342 and the coating component 323. A support plate 350 is fixed to the inner wall of the groove. The bottom of the slide plate 3411 is slidably connected to the top of the support plate 350, which supports the movement of the slide plate 3411.

[0020] The rotation of the applicator 323 and the rotating shaft 322 can achieve a dotted line drawing effect. When it reaches a predetermined position, the movable frame 310 is provided with a fixing part 360, which can fix a solid line. The fixing part 360 includes a stamping part 361, an ink guide 362 fixed to the stamping part 361, and a force-bearing part 363 fixed to the stamping part 361. A hollow tube 364 is fixed to one end of the force-bearing part 363. The hollow tube 364 slides through the movable frame 310, and the ink guide 362 passes through the hollow tube 364. The hollow tube 364 can move with the ink guide 362 along with the stamping part 361. When component 61 and the force-bearing component 363 move, they cover and protect the ink guide component 362. The surface of the force-bearing component 363 is slidably connected to the inner wall of the movable frame 310. The ink guide component 362 passes through the force-bearing component 363. The paint in the groove is fed into the printing cover 361 through the ink guide component 362. The paint stored on the printing cover 361 can adhere to the inner wall of the battery swapping cabinet when the force-bearing component 363 pushes it, achieving the effect of clearly defining the positioning point with a solid line. The printing cover 361 is directly pressed against the inner wall of the battery swapping cabinet, making it convenient for subsequent staff to determine the assembly positioning point. The movable frame 310 is equipped with an extrusion mechanism. Part 370, the extrusion part 370 includes a light rod 371 that slides through the movable frame 310, a collar 372 fixed to the surface of the light rod 371, and a pressure plate 374 fixed to one end of the light rod 371. The surface of the pressure plate 374 is in contact with the surface of the ink guide 362. When the pressure plate 374 moves, it can squeeze the force-bearing member 363 to push out the stamping member 361. The stamping member 361 fits against the inner wall of the extrusion cabinet, which can achieve a fixed point effect. A first spring 373 is sleeved on the surface of the light rod 371. The two ends of the first spring 373 are respectively attached to the inner wall of the movable frame 310 and the collar. When the surface of 372 abuts against the light rod 371, the collar 372 moves accordingly and squeezes the first spring 373. Then, under the action of the elastic force of the first spring 373, the light rod 371 moves in the opposite direction, which can drive the pressure plate 374 to reset. A T-shaped block 380 is fixed on the surface of the pressure plate 374. A T-shaped groove is opened on the surface of the force-bearing component 363. The surface of the T-shaped block 380 is slidably connected to the inner wall of the T-shaped groove. Through the cooperation of the T-shaped groove and the T-shaped block 380, the force-bearing component 363 and the stamping component 361 can be pulled back into the movable frame 310 when the pressure plate 374 is reset.

[0021] The surface of the movable frame 310 is embedded with ball bearings 390. When the hollow frame 110 is attached to the inner wall of the battery swapping cabinet, the flexible ruler 200 is taut. At this time, the surfaces of the ball bearings 390 and the coating part 323 are in contact with the inner wall of the battery swapping cabinet. When the staff moves the movable frame 310, the ball bearings 390 can increase the smoothness of the movement of the movable frame 310, reduce the occurrence of jamming, and improve the effect of dotted line marking.

[0022] More preferably, the surface of the hollow frame 110 is equipped with an anti-slip part 140. The anti-slip part 140 includes a horizontal plate 141 that slides through the hollow frame 110 and a rotating cylinder 142 that is rotatably connected to one end of the horizontal plate 141. When fixing the solid line, the worker can push the horizontal plate 141 into the hollow frame 110 while holding the hollow frame 110. The rotating cylinder 142 squeezes the flexible ruler 200, limiting the extension of the flexible ruler 200 and ensuring that the movable frame 310 has moved the required length. After that, the worker stops pressing the horizontal plate. Simultaneously pulling the movable frame 310 at step 141, the flexible ruler 200 straightens and automatically pushes the rotating cylinder 142, thereby pushing the horizontal plate 141 outward. The flexible ruler 200 can then extend and retract normally. When marking lines at fixed points, the extension length of the flexible ruler 200 is limited. An extension assembly 600 is installed on the movable frame 310. The extension assembly 600 includes an adsorption part 610 and a moving assembly 620 disposed on the movable frame 310. The adsorption part 610 includes a magnetic block 611 that slides through the movable frame 310 and a fixed magnetic block. The baffle 612 at one end of the 611 and the third spring 613 disposed inside the movable frame 310 have their two ends abutting against the surface of the baffle 612 and the inner wall of the movable frame 310, respectively. Under the action of the elastic force of the third spring 613, the baffle 612 is subjected to force and retracts the magnetic block 611 into the interior of the movable frame 310. The surface of the magnetic block 611 is in contact with the inner wall of the battery swapping cabinet, and can be magnetically attached to limit the position of the movable frame 310 and reduce the shaking of the movable frame 310. To ensure the tautness of the flexible measuring tape 200 and improve the accuracy of the fixed point, the moving assembly 620 includes a moving frame 621 that slides through the movable frame 310 and a wedge-shaped member 622 fixed to one end of the moving frame 621. The surface of the wedge-shaped member 622 is slidably connected to the inner wall of the movable frame 310 and contacts the surface of the magnet 611. When the moving frame 621 moves and releases the pressure on the magnet 611, the magnet 611 retracts into the interior of the movable frame 310, reducing the impact on the smoothness of the movement of the movable frame 310.

[0023] A protective frame 630 is fixed to the surface of the movable frame 310. The surface of the magnetic block 611 is slidably connected to the inner wall of the protective frame 630. The protective frame 630 can guide the movement of the magnetic block 611 and increase the stability of the movement of the magnetic block 611.

[0024] A balancing assembly 400 is mounted on the surface of the hollow frame 110. The balancing assembly 400 includes a rotating component 410 rotatably connected to the hollow frame 110, a viewing tube 420 fixed to the bottom of the rotating component 410, and a collection hopper 430 fixed to the bottom of the viewing tube 420. Quicksand is disposed inside the rotating component 410. The balancing assembly 400 is positioned as follows: Figure 1In the indicated state, the quicksand flows downwards and falls into the collection hopper 430 through the viewing tube 420. A guide section 450 is installed inside the rotating component 410. The guide section 450 includes a telescopic rod 451 fixed to the top of the inner wall of the rotating component 410 and a discharge hopper 452 fixed to one end of the piston rod of the telescopic rod 451. Under the action of the quicksand and its own gravity, the discharge hopper 452... Figure 14 As shown, before reuse, the operator rotates the balancing assembly 400 to adjust the collection hopper 430 to the top. At this time, the quicksand flows in the reverse direction through the viewing tube 420 into the rotating component 410. The quicksand pushes open the discharge hopper 452 and opens the channel for the quicksand to flow back. The inner wall of the viewing tube 420 is fixed with a limiting frame 440. When the hollow frame 110 is in a horizontal state, the quicksand falls vertically from the rotating component 410 into the viewing tube 420 and passes evenly through the limiting frame 440 before entering the collection hopper 430. When the hollow frame 110 is tilted, the quicksand falls towards one side of the inner wall of the viewing tube 420, making it easier for the operator to observe the direction of the tilt. Compared with the existing bubble balancer, the quicksand judgment method can effectively reduce the problem of the operator's inconvenience in judging small deviations in bubble position. In addition, compared with the bubble balancer, the quicksand can also be used normally in low temperature environments. By having the quicksand pass through the limiting frame 440, the horizontality of the hollow frame 110 can be clearly determined, ensuring the accuracy of subsequent marking.

[0025] When drawing horizontal lines, the hollow frame 110 changes direction. The balance assembly 400 also includes a limiting part 460 provided on the hollow frame 110. The limiting part 460 includes a push rod 461 that slides through the hollow frame 110, a disc 462 fixed on the surface of the push rod 461, and a second spring 463 sleeved on the surface of the push rod 461. The two ends of the second spring 463 abut against the inner wall of the hollow frame 110 and the surface of the disc 462, respectively. A limiting hole is opened on the surface of the rotating part 410. One end of the push rod 461 contacts the inner wall of the limiting hole, which can limit the angle of the viewing tube 420 and prevent the viewing tube 420 from automatically adjusting to a vertical state under gravity. In addition, when the hollow frame 110 changes direction, the operator can limit the state of the viewing tube 420 through the connection between the push rod 461 and the corresponding limiting hole.

[0026] It should be noted that the end of the measuring tape 200 that is fixed to the movable frame 310 is not "0", and the height of the indicator 500 is "0". Therefore, the distance between the height of the indicator 500 and the top of the movable frame 310 is the length of one end of the measuring tape 200, for subsequent measurement. For example, if the distance between the height of the indicator 500 and the top of the movable frame 310 is 8cm, then the value of the end of the measuring tape 200 that is fixed to the movable frame 310 should be 8cm.

[0027] When the movable frame 310 moves in a straight line, the dotted lines formed by the coating part 323 on the inner wall of the battery swapping cabinet are arranged in equidistant straight lines. When the movable frame 310 deflects at an angle, the staff can visually detect the skewed state of the dotted lines. In addition, the paint in the groove can be transported to the stamping part 361 through the ink guide part 362 and by using capillary effect.

[0028] Working principle: The operator attaches the hollow frame 110 to the inner wall of the battery swapping cabinet, and then pulls the movable frame 310 downward. At this time, the surfaces of the ball bearing 390 and the coating part 323 are in contact with the inner wall of the battery swapping cabinet. At the same time, the operator presses the movable frame 621, and the magnetic block 611 retracts into the interior of the movable frame 310. The magnetic attraction between it and the battery swapping cabinet can improve the stability of the movable frame 310 when it moves and reduce the contact and detachment of the ball bearing 390 from the battery swapping cabinet. When the staff pulls the movable frame 310 to move, the coating part 323 contacts the surface of the battery swapping cabinet and rotates under the action of friction, thereby achieving the effect of dotted lines. This serves as a reminder of the installation position of the mounting plate during subsequent assembly, reducing the possibility of misalignment during the assembly of the mounting plate. The long dotted lines also make it convenient to simultaneously remind the top and bottom of the mounting plate when the mounting plate thickness is small. The length of the extended flexible ruler 200 is determined by the movable frame 310. When the length of the flexible ruler 200 is the position where drilling or gluing is required, the staff presses the light rod 371 and the horizontal plate 141. The rotating cylinder 142 squeezes the flexible ruler 200 so that it stops moving. The staff stops pushing the moving frame 621 and pulls it out. The magnet 611 is squeezed and removed from the movable frame 310. The magnet 611 is attached to the battery swapping cabinet. In addition, the pressure plate 374 squeezes the force-bearing component 363 and pushes out the cover 361. The cover 361 is close to the inner wall of the battery swapping cabinet and the paint is applied to the inner wall of the battery swapping cabinet for subsequent observation. The fixed point length of the cover 361 is less than that of the coating component 323. When the fixed point of the cover 361 coincides with the marked position of the coating component 323, the color of the positioning position of the cover 361 is significantly darker, which makes it easier for the staff to judge for use in assembling the installation plate. A storage box 130 is fixed to the surface of the hollow frame 110. When not in use, the stretch assembly 300 can be unfolded. Figure 2 The device is installed in the storage box 130 as shown, for future use.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A marking device for assembling and positioning a reverse charging battery swapping cabinet mounting plate, comprising a fixing assembly (100), wherein the fixing assembly (100) includes a hollow frame (110) and a magnet plate (120) embedded in the surface of the hollow frame (110), characterized in that, Also includes: A flexible ruler (200) is installed inside the hollow frame (110) by being wound around a ruler spring, with one end of the flexible ruler (200) penetrating the bottom of the hollow frame (110); The stretching assembly (300) includes a movable frame (310) fixed to one end of a flexible ruler (200), a dotted scribing section (320) installed inside the movable frame (310), and a fixed point section (360) set inside the movable frame (310). Indicators (500) are fixed on both sides of the movable frame (310) to indicate the measurement position. The dotted marking section (320) includes an anti-detachment rod (321) that movably passes through the movable frame (310), a rotating shaft (322) that is slidably sleeved on the surface of the anti-detachment rod (321), and a plurality of coating parts (323) embedded on the surface of the rotating shaft (322). The coating parts (323) contact the inner wall of the battery swapping cabinet and rotate to form a dotted line marking. The positioning part (360) includes a stamp (361), an ink guide (362) fixed to the stamp (361), and a force-bearing part (363) fixed to the stamp (361). The surface of the force-bearing part (363) is slidably connected to the inner wall of the movable frame (310). The force-bearing part (363) extends out of the movable frame (310) and contacts the inner wall of the battery swapping cabinet to form a dot-shaped positioning mark.

2. The marking device for assembling and positioning the mounting plate of the reverse charging battery swapping cabinet according to claim 1, characterized in that, The fixed part (360) also includes a hollow tube (364) fixed to one end of the force-bearing member (363), the hollow tube (364) slides through the movable frame (310), and the ink guide (362) passes through the hollow tube (364).

3. The marking device for assembling and positioning the mounting plate of the reverse charging battery swapping cabinet according to claim 1, characterized in that, The bottom of the inner wall of the movable frame (310) is provided with a groove, and the top of the movable frame (310) is provided with a feed port. A plug is detachably connected inside the feed port. The interior of the movable frame (310) is provided with a feeding part (340), which includes: The actuating mechanism (341) is located inside the movable frame (310); A sponge board (342) is mounted on a push mechanism (341); The suction plate (343) is fixed to the bottom of the sponge plate (342).

4. The marking device for assembling and positioning the mounting plate of the reverse charging battery swapping cabinet according to claim 3, characterized in that, The actuation mechanism (341) includes: The skateboard (3411) is slidably connected inside the movable frame (310), and the sponge board (342) is fixed to the surface of the skateboard (3411); A rectangular plate (3412) is fixed to the surfaces on both sides of the slide plate (3411); The spring clip (3413) abuts between the movable frame (310) and the rectangular plate (3412).

5. The marking device for assembling and positioning the mounting plate of the reverse charging battery swapping cabinet according to claim 4, characterized in that, The movable frame (310) is provided with a pressing part (370), the pressing part (370) includes: Light rod (371), sliding through the movable frame (310); A collar (372) is fixed to the surface of the smooth rod (371); A pressure plate (374) is fixed to one end of a light rod (371). The surface of the pressure plate (374) is in contact with the surface of the ink guide (362). A T-shaped block (380) is fixed on the surface of the pressure plate (374). A T-shaped groove is opened on the surface of the force-bearing component (363). The surface of the T-shaped block (380) is slidably connected to the inner wall of the T-shaped groove. The first spring (373) is sleeved on the surface of the smooth rod (371), and the two ends of the first spring (373) abut against the inner wall of the movable frame (310) and the surface of the collar (372), respectively.

6. The marking device for assembling and positioning the mounting plate of the reverse charging battery swapping cabinet according to claim 1, characterized in that, The surface of the hollow frame (110) is provided with an anti-slip part (140), the anti-slip part (140) comprising: Horizontal plate (141), sliding through hollow frame (110); A rotating cylinder (142) is rotatably connected to one end of a horizontal plate (141), and the rotating cylinder (142) is in contact with a flexible ruler (200).

7. The marking device for assembling and positioning the mounting plate of the reverse charging battery swapping cabinet according to claim 1, characterized in that, An extension assembly (600) is mounted on the movable frame (310). The extension assembly (600) includes an adsorption part (610) and a moving assembly (620) disposed on the movable frame (310). The adsorption part (610) includes: Magnet (611), sliding through the movable frame (310); A baffle (612) is fixed to one end of a magnet (611); The third spring (613) is disposed inside the movable frame (310), and the two ends of the third spring (613) abut against the surface of the baffle (612) and the inner wall of the movable frame (310), respectively.

8. The marking device for assembling and positioning the mounting plate of the reverse charging battery swapping cabinet according to claim 7, characterized in that, The mobile group (620) includes: Movable frame (621), sliding through movable frame (310); A wedge (622) is fixed to one end of the movable frame (621). The surface of the wedge (622) is slidably connected to the inner wall of the movable frame (310) and in contact with the surface of the magnet (611).

9. A marking device for assembling and positioning a reverse charging battery swapping cabinet mounting plate according to claim 1, characterized in that, A balancing assembly (400) is installed on the hollow frame (110). The balancing assembly (400) includes a rotating component (410) rotatably connected to the hollow frame (110), a viewing tube (420) fixed to the bottom of the rotating component (410), and a collection hopper (430) fixed to the bottom of the viewing tube (420). A limiting frame (440) is fixed to the inner wall of the viewing tube (420). A limiting hole is opened on the surface of the rotating component (410). The balancing assembly (400) also includes a limiting part (460) provided on the hollow frame (110). The limiting part (460) includes: A push rod (461) slides through the hollow frame (110), and one end of the push rod (461) contacts the inner wall of the limiting hole; The disc (462) is fixed to the surface of the push rod (461); The second spring (463) is sleeved on the surface of the push rod (461), and the two ends of the second spring (463) abut against the inner wall of the hollow frame (110) and the surface of the disc (462), respectively.

10. A marking device for assembling and positioning a reverse charging battery swapping cabinet mounting plate according to claim 9, characterized in that, The rotating component (410) has a flow guide (450) installed inside, the flow guide (450) comprising: The telescopic rod (451) is fixed to the top of the inner wall of the rotating part (410); The feeding hopper (452) is fixed to one end of the piston rod of the telescopic rod (451).

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