CN219247515U - Movable dustproof charger - Google Patents

Abstract

The utility model discloses a movable dustproof charger, which relates to the field of chargers and comprises a portable charger, wherein a vent is arranged on the portable charger, and two fixing blocks are fixedly arranged on two sides of the portable charger. According to the utility model, through the arrangement of the structures such as the U-shaped plate, the filter plate and the turnover baffle plate, the control panel of the charger can be shielded by the turnover baffle plate, so that the situation that a wrong touch switch is caused when the charger is placed is avoided, electric quantity waste is avoided, the ventilation opening of the charger is shielded by the U-shaped plate, so that dust in air is prevented from entering the charger in the placing process, the turnover baffle plate can be opened and the ventilation opening and the control panel are exposed by turning over the limit sleeve and pushing the U-shaped plate, the charger is convenient to use, dust impurities can be filtered and blocked by the filter plate, the dustproof effect is realized, the ageing speed of a circuit in the charger can be reduced, and the service life of the charger is prolonged.

Description

Movable dustproof charger

Technical Field

The utility model relates to the technical field of chargers, in particular to a movable dustproof charger.

Background

The portable charger is mainly used for charging the storage battery, can automatically detect the state of the charged storage battery, adopts a constant-current-constant-voltage floating charging mode, achieves a full-automatic working state, is particularly suitable for unattended working occasions, and has the characteristics of small volume, light weight, convenience in moving and carrying and the like.

In the prior art, the portable charger can generate certain heat in the use process, the heat dissipation fan is generally arranged in the portable charger to actively dissipate heat, but dust in the air easily enters the inside through the vent hole of the charger and is attached to the inside device, so that the aging of the inside device is easily accelerated in the long time, the service life of the charger is reduced, the mistaken touch prevention effect of the control panel of the charger is poor, and when the portable charger is placed on a vehicle, the portable charger is easy to shake in the vehicle driving process and is easy to squeeze to a charger switch to start, so that the electric quantity is wasted, and the portable dustproof charger is required to meet the demands of people.

Disclosure of Invention

The utility model aims to provide a movable dustproof charger, which aims to solve the problems that dust in air easily enters the inside and adheres to devices when the portable charger provided in the background art is used, the ageing of the internal devices is accelerated, the service life is shortened, the mistaken touch prevention effect of a control panel is poor, when the portable charger is placed on a vehicle, a switch is easily extruded due to shaking in the running process of the vehicle, and the equipment is started, so that the electric quantity is wasted.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a portable dustproof machine that charges, includes portable machine that charges, be equipped with the vent on the portable machine that charges, the equal fixed mounting in both sides of portable machine that charges has two fixed blocks, and one side fixed mounting that is close to each other that is located two fixed blocks of same one side has same gag lever post, and slidable mounting has same U template on two gag lever posts, and movable mounting has dustproof construction on the U template, and mistake touch prevention structure is installed to one side of U template, and two limit sleeve are installed in one side symmetry rotation of U template, all installs limit structure on two limit sleeve.

Preferably, the dustproof structure comprises two fixed frames, the two fixed frames are respectively and fixedly arranged on two sides of the portable charger, the filter plates are fixedly arranged on the inner walls of the two fixed frames, the brush rods are slidably arranged on the inner walls of the two fixed frames and respectively contact with the two filter plates, one ends of the two linkage rods are respectively and rotatably arranged on the two brush rods, the other ends of the two linkage rods are respectively and rotatably arranged on two side inner walls of the U-shaped plate, the baffle rods are fixedly arranged on two side inner walls of the U-shaped plate, movable grooves are respectively and movably arranged on the two fixed frames, and the two baffle rods are respectively and movably arranged in the two movable grooves.

Preferably, two linkage holes are formed in the linkage rod, linkage shafts are rotatably mounted in the two linkage holes, and the two linkage shafts are fixedly mounted on one side of the brush rod and one side of the U-shaped plate respectively.

Preferably, the limiting sliding grooves are formed in the inner walls of the two sides of the fixing frame, limiting sliding blocks are slidably mounted in the two limiting sliding grooves, the two limiting sliding blocks are fixedly mounted on the two sides of the brush rod respectively, two sliding holes are formed in the U-shaped plate, and the two limiting rods are slidably mounted in the two sliding holes respectively.

Preferably, the false touch preventing structure comprises a fixing strip, wherein the fixing strip is fixedly arranged on one side of the U-shaped plate, a rotating hole is formed in the fixing strip, a rotating shaft is rotatably arranged in the rotating hole, and a turnover baffle is fixedly arranged on the rotating shaft.

Preferably, the rotating shaft is fixedly sleeved with a torsion spring, one end of the torsion spring is fixedly arranged on the inner wall of the rotating hole, and the other end of the torsion spring is fixedly arranged on the rotating shaft.

Preferably, the limit structure comprises two handles, the two handles are respectively and fixedly arranged on the two limit sleeves, the two limit sleeves are respectively and movably sleeved on the two limit rods, the two limit rods are respectively and movably sleeved with a limit torsion spring, one ends of the two limit torsion springs are respectively and fixedly arranged on the inner walls of the two limit sleeves, and the other ends of the two limit torsion springs are respectively and fixedly arranged on one side of the U-shaped plate.

Preferably, the inner wall of the limit sleeve is fixedly provided with two limit sliding blocks, four limit grooves are formed in the limit rod, the two limit sliding blocks are movably arranged in the corresponding two limit grooves respectively, two adjusting grooves are formed in the limit rod, the two limit grooves on the same side are communicated with the same adjusting groove, a limit rotating groove is formed in the U-shaped plate, a limit rotating ring is rotationally arranged in the limit rotating groove, and the limit rotating ring is fixedly arranged on one side of the limit sleeve.

The beneficial effects of the utility model are as follows:

according to the utility model, through the arrangement of the structures such as the U-shaped plate, the filter plate and the turnover baffle plate, the control panel of the charger can be shielded by the turnover baffle plate, so that the situation that a switch is touched by mistake when the charger is placed is avoided, electric quantity waste is avoided, the ventilation opening of the charger is shielded by the U-shaped plate, so that dust in air is prevented from entering the charger in the placing process, the turnover baffle plate can be opened and the ventilation opening and the control panel are exposed by turning over the limit sleeve and pushing the U-shaped plate, the charger is convenient to use, dust impurities can be filtered and blocked by the filter plate, the dustproof effect is realized, the ageing speed of a circuit in the charger can be reduced, and the service life of the charger is prolonged.

According to the utility model, through the arrangement of the brush rod, the linkage rod and other structures, when the charger is used up and the U-shaped plate is pushed to reset and move, the U-shaped plate moves and simultaneously pulls the brush rod to move through the linkage rod, so that the brush rod can scrape and clean dust adhered to the filter plate during use, the cleanliness of the filter plate is ensured, and the filter plate can be continuously used.

Drawings

Fig. 1 is a schematic structural diagram of a movable dust-proof charger according to the present utility model;

fig. 2 is a schematic side view of a movable dust-proof charger according to the present utility model;

fig. 3 is a schematic diagram of a partial structure of a movable dust-proof charger according to the present utility model;

fig. 4 is a schematic structural view of a filter plate portion of a mobile dust-proof charger according to the present utility model;

fig. 5 is a schematic cross-sectional view of a fixed frame of a portable dustproof charger according to the present utility model;

fig. 6 is a schematic structural diagram of a fixed frame portion of a movable dust-proof charger according to the present utility model;

fig. 7 is a schematic cross-sectional view of a limiting sleeve part of a movable dust-proof charger according to the present utility model;

fig. 8 is a schematic structural diagram of a fixing strip portion of a portable dustproof charger according to the present utility model.

In the figure: 100. a portable charger; 101. a vent; 200. a fixed block; 201. a limit rod; 202. a U-shaped plate; 203. a fixed frame; 204. a filter plate; 205. a brush bar; 206. a linkage rod; 207. a gear lever; 208. a movable groove; 209. a linkage hole; 210. a linkage shaft; 211. limiting sliding grooves; 212. a limit sliding block; 213. a sliding hole; 300. a fixing strip; 301. turning over the baffle; 302. a rotation hole; 303. a rotating shaft; 304. a torsion spring; 400. a limit sleeve; 401. a handle; 402. limiting torsion springs; 403. a limit slider; 404. an adjustment tank; 405. a limiting groove; 406. limiting the rotating groove; 407. limiting the swivel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-8, a movable dustproof charger comprises a portable charger 100, a vent 101 is arranged on the portable charger 100, two fixing blocks 200 are fixedly arranged on two sides of the portable charger 100, one side, close to each other, of the two fixing blocks 200 positioned on the same side is fixedly provided with the same limit rod 201, the two limit rods 201 are slidably provided with the same U-shaped plate 202, the U-shaped plate 202 is movably provided with a dustproof structure, one side of the U-shaped plate 202 is provided with an anti-false contact structure, one side of the U-shaped plate 202 is symmetrically rotatably provided with two limit sleeves 400, both limit sleeves 400 are provided with limit structures, handles 401 on two sides are turned when the portable charger 100 is needed, the handles 401 can drive the limit sleeves 400 to rotate, the rotating limit sleeves 400 can drive limit rotating grooves 406 of a limit rotating ring 407 on the U-shaped plate 202 to rotate, further, the limit sleeve 400 is prevented from shifting, the limit sleeve 400 compresses the limit torsion spring 402 and drives the two limit sliding blocks 403 to slide in the two limit grooves 405 respectively while rotating, so that the limit sliding blocks 403 correspond to the positions of the adjusting grooves 404, at the moment, the limit on the U-shaped plate 202 can be relieved, the U-shaped plate 202 can be pushed horizontally to drive the limit sleeve 400 to move, the moving limit sleeve 400 drives the two limit sliding blocks 403 to slide in the two adjusting grooves 404 respectively, the U-shaped plate 202 can slide on the two limit rods 201 respectively through the two sliding holes 213, the U-shaped plate 202 moves while moving away from the two fixed frames 203 and drives the baffle rods 207 to separate from the movable grooves 208, thereby exposing the filter plate 204, and meanwhile, the U-shaped plate 202 moves to drive one end of the linkage rod 206 to rotate and move through the cooperation of the linkage holes 209 and the linkage shafts 210, the other end of the linkage rod 206 pulls the brush rod 205 to slide vertically, the vertically sliding brush rod 205 can drive the limit sliders 212 on two sides to slide in the two limit sliding grooves 211 respectively, and then the limit brush rod 205 can slide vertically, the U-shaped plate 202 continuously moves and can drive the fixing strip 300 to move, the fixing strip 300 drives the overturning baffle 301 to move, the overturning baffle 301 can be extruded by the portable charger 100 to overturn in the moving process of the overturning baffle 301, the rotating shaft 303 can be driven to rotate in the rotating hole 302 to achieve the overturning effect, the fixing strip 300 can compress the torsion spring 304 when overturning, and therefore the control panel of the portable charger 100 can be exposed for use, when the fixing block 200 is pushed to the bottom, the two limit sliders 403 on the limit sleeve 400 can slide into the other two limit sliding grooves 405, at the moment, the limit torsion spring 402 can drive the limit sleeve 400 to overturn and reset, the reset limit sleeve 400 can slide in the other two limit sliding grooves 405 and keep away from the adjusting groove 404, and the positions of the limit sleeve 400 and the U202 can be reset, and the dust-proof vent 204 can be realized through the position of the filter plate 101.

Further, the dustproof structure comprises two fixed frames 203, the two fixed frames 203 are respectively and fixedly arranged on two sides of the portable charger 100, the filter plates 204 are fixedly arranged on the inner walls of the two fixed frames 203, the brush rods 205 are slidably arranged on the inner walls of the two fixed frames 203, the two brush rods 205 are respectively contacted with the two filter plates 204, one ends of the two linkage rods 206 are respectively rotatably arranged on the two brush rods 205, the other ends of the two linkage rods 206 are respectively rotatably arranged on the inner walls of two sides of the U-shaped plate 202, the baffle rods 207 are fixedly arranged on the inner walls of two sides of the U-shaped plate 202, the movable grooves 208 are respectively formed on the two fixed frames 203, the two baffle rods 207 are respectively movably arranged in the two movable grooves 208, dust impurities in the air can be filtered by arranging the filter plates 204 at the positions of the ventilation openings 101, the U-shaped plate 202 can slide on the two limiting rods 201 respectively, the U-shaped plate 202 can be far away from the two fixed frames 203 and drive the movable grooves 208 when the U-shaped plate 202 moves, so that the filter plates 202 can be separated from the movable grooves 204 are respectively, and the two sliding sleeves 206 can be vertically moved by the two limiting brush rods 206 are vertically, and the two end of the two sliding sleeves 212 can be vertically moved by the two sliding sleeves 212 are correspondingly, and the two end caps 206 can be vertically moved by the two end caps 206, and the sliding sleeve rods are vertically and the end of the two end caps are vertically moved by the sliding rods are vertically and the end of the end caps 206, and the end of the end caps are vertically and the end of the end cap is respectively. And the reset brush rod 205 can scrape dust and impurities attached to the filter plate 204 during use, so that the filter plate 204 is clean.

Further, two linkage holes 209 are formed in the linkage rod 206, linkage shafts 210 are rotatably mounted in the two linkage holes 209, the two linkage shafts 210 are fixedly mounted on one sides of the brush rod 205 and the U-shaped plate 202 respectively, and the U-shaped plate 202 moves to drive one end of the linkage rod 206 to rotate and move through the cooperation of the linkage holes 209 and the linkage shafts 210, so that the other end of the linkage rod 206 pulls the brush rod 205 to slide vertically.

Further, limiting sliding grooves 211 are formed in the inner walls of two sides of the fixed frame 203, limiting sliding blocks 212 are slidably mounted in the two limiting sliding grooves 211, the two limiting sliding blocks 212 are fixedly mounted on two sides of the brush rod 205 respectively, two sliding holes 213 are formed in the U-shaped plate 202, two limiting rods 201 are slidably mounted in the two sliding holes 213 respectively, the vertically sliding brush rod 205 can drive the limiting sliding blocks 212 on two sides to slide in the two limiting sliding grooves 211 respectively, and then the brush rod 205 can be limited to slide vertically, and the U-shaped plate 202 can slide on the two limiting rods 201 through the two sliding holes 213 respectively.

Further, the anti-false touch structure comprises a fixing strip 300, the fixing strip 300 is fixedly arranged on one side of the U-shaped plate 202, a rotating hole 302 is formed in the fixing strip 300, a rotating shaft 303 is rotatably arranged in the rotating hole 302, a turnover baffle 301 is fixedly arranged on the rotating shaft 303, the U-shaped plate 202 continuously moves to drive the fixing strip 300 to move, the fixing strip 300 drives the turnover baffle 301 to move, the turnover baffle 301 can be extruded by the portable charger 100 to turn over in the moving process, the turnover baffle 301 can drive the rotating shaft 303 to rotate in the rotating hole 302, the turnover effect is achieved, a torsion spring 304 can be compressed while the fixing strip 300 turns over, so that a control panel of the portable charger 100 is exposed for use, when the U-shaped plate 202 is restored to the original position, the torsion spring 304 can not be blocked by the portable charger 100, the turnover baffle 301 is driven to turn over and reset, and the turnover baffle 301 reset can shield a control panel of the portable charger 100 again, and the situation of false touch is avoided.

Further, the torsion spring 304 is fixedly sleeved on the rotation shaft 303, one end of the torsion spring 304 is fixedly mounted on the inner wall of the rotation hole 302, the other end of the torsion spring 304 is fixedly mounted on the rotation shaft 303, the torsion spring 304 is compressed when the fixing strip 300 overturns, and the torsion spring 304 can drive the overturning baffle 301 to overturn and reset when the overturning baffle 301 is not blocked by the portable charger 100.

Further, the limit structure includes two handles 401, two handles 401 are respectively fixed mounting on two limit sleeve 400, two limit sleeve 400 are respectively movable sleeve joint on two gag lever post 201, limit torsion spring 402 has all been cup jointed to the activity on two gag lever post 201, two limit torsion spring 402's one end is fixed mounting respectively on two limit sleeve 400's inner wall, two limit torsion spring 402's other one end is fixed mounting in one side of U template 202, the handle 401 of upset both sides, handle 401 can drive limit sleeve 400 rotation, pivoted limit sleeve 400 can drive limit swivel 407 and rotate in the restriction indent 406 on U template 202, and then limit sleeve 400 skew appears in avoiding, limit sleeve 400 rotation can compress limit torsion spring 402 and drive two limit slider 403 and slide in two limit slots 405 respectively, make limit slider 403 and adjustment tank 404's position corresponding, can release the restriction to U template 202 this moment.

Further, two limiting slide blocks 403 are fixedly installed on the inner wall of the limiting sleeve 400, four limiting grooves 405 are formed in the limiting rod 201, the two limiting slide blocks 403 are movably installed in the corresponding two limiting grooves 405, two adjusting grooves 404 are formed in the limiting rod 201, the two limiting grooves 405 located on the same side are communicated with the same adjusting groove 404, a limiting rotating groove 406 is formed in the U-shaped plate 202, a limiting rotating ring 407 is rotatably installed in the limiting rotating groove 406, the limiting rotating ring 407 is fixedly installed on one side of the limiting sleeve 400, the limiting sleeve 400 can compress the limiting torsion spring 402 and drive the two limiting slide blocks 403 to slide in the two limiting grooves 405 respectively while rotating, the limiting sleeve 400 moving corresponds to the positions of the adjusting grooves 404, the limiting slide blocks 403 are driven to slide in the two adjusting grooves 404 respectively, and the rotating limiting sleeve 400 can drive the limiting rotating ring 407 to rotate in the limiting rotating groove 406 on the U-shaped plate 202, so that deflection of the limiting sleeve 400 is avoided.

The working principle of the utility model is as follows:

when the portable charger 100 needs to be used, the handles 401 on two sides are turned over, the handles 401 can drive the limiting sleeve 400 to rotate, the rotating limiting sleeve 400 can drive the limiting swivel 407 to rotate in the limiting swivel groove 406 on the U-shaped plate 202, further, the limiting sleeve 400 is prevented from deflecting, the limiting torsion spring 402 is compressed while the limiting sleeve 400 rotates, the two limiting slide blocks 403 are driven to slide in the two limiting grooves 405 respectively, the limiting slide blocks 403 correspond to the positions of the adjusting grooves 404, at the moment, the limitation on the U-shaped plate 202 can be relieved, the U-shaped plate 202 is pushed horizontally to drive the limiting sleeve 400 to move, the moving limiting sleeve 400 can drive the two limiting slide blocks 403 to slide in the two adjusting grooves 404 respectively, the U-shaped plate 202 moves to slide on the two limiting rods 201 respectively through the two sliding holes 213, the U-shaped plate 202 moves while being far away from the two fixed frames 203 and drives the baffle rods 207 to be separated from the movable grooves 208, so that the filter plate 204 can be exposed, the U-shaped plate 202 moves to drive one end of the linkage rod 206 to rotate and move through the cooperation of the linkage hole 209 and the linkage shaft 210, the other end of the linkage rod 206 pulls the brush rod 205 to slide vertically, the vertically sliding brush rod 205 drives the limit sliding blocks 212 on two sides to slide in the two limit sliding grooves 211 respectively, the limit brush rod 205 can slide vertically only, the U-shaped plate 202 continuously moves to drive the fixing strip 300 to move, the fixing strip 300 drives the overturning baffle 301 to move, the overturning baffle 301 is extruded by the portable charger 100 to overturn in the moving process, the overturning baffle 301 drives the rotating shaft 303 to rotate in the rotating hole 302 to realize the overturning effect, the fixing strip 300 overturns and compresses the torsion spring 304, so that the control panel of the portable charger 100 can be exposed for use, when pushing the fixed block 200 to the bottom, two limiting slide blocks 403 on the limiting sleeve 400 can slide into two other limiting grooves 405, at this moment, the limiting sleeve 400 is loosened, the limiting torsion spring 402 can drive the limiting sleeve 400 to turn over and reset, the limiting sleeve 400 that resets can slide in two other limiting grooves 405 and keep away from the adjusting groove 404, thereby limit the positions of the limiting sleeve 400 and the U-shaped plate 202 again, dust impurities in the air can be filtered through setting up the filter plate 204 at the position of the vent 101, dustproof effect is realized, when the portable charger 100 is used, the limiting sleeve 400 is rotated reversely and the U-shaped plate 202 is pushed back to the original position, the reset U-shaped plate 202 can drive the brush rod 205 to restore to the original position through the linkage rod 206, and then the reset brush rod 205 can scrape off the dust impurities attached to the filter plate 204 in use, ensure that the U-shaped plate 202 that resets can block the fixed frame 203 again simultaneously, prevent to enter the portable charger 100 in the process, when the U-shaped plate 202 is restored to the original position, the turnover baffle 301 is not blocked by the baffle 301 at this moment, the situation that the turnover baffle 301 is blocked by the torsion spring 301 is reset, and the situation that the turnover baffle 301 is prevented from being carried by the turnover, and the situation that the portable charger 100 is reset is prevented from being controlled by the touch panel 301.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. The utility model provides a movable dustproof machine that charges, includes portable machine (100) that charges, be equipped with vent (101), its characterized in that on portable machine (100): two sides of the portable charger (100) are fixedly provided with two fixing blocks (200), one side, close to each other, of the two fixing blocks (200) on the same side is fixedly provided with the same limiting rod (201), the two limiting rods (201) are slidably provided with the same U-shaped plate (202), the U-shaped plate (202) is movably provided with a dustproof structure, one side of the U-shaped plate (202) is provided with an anti-false touch structure, one side of the U-shaped plate (202) is symmetrically rotated to be provided with two limiting sleeves (400), and the two limiting sleeves (400) are provided with limiting structures.

2. The mobile dust battery charger of claim 1, wherein: the dustproof structure comprises two fixed frames (203), wherein the two fixed frames (203) are respectively and fixedly arranged on two sides of the portable charger (100), filter plates (204) are fixedly arranged on the inner walls of the two fixed frames (203), brush rods (205) are slidably arranged on the inner walls of the two fixed frames (203), the two brush rods (205) are respectively contacted with the two filter plates (204), one ends of two linkage rods (206) are respectively and rotatably arranged on the two brush rods (205), the other ends of the two linkage rods (206) are respectively and rotatably arranged on the inner walls of two sides of a U-shaped plate (202), baffle rods (207) are fixedly arranged on the inner walls of two sides of the U-shaped plate (202), movable grooves (208) are respectively and movably arranged in the two movable grooves (208).

3. The mobile dust battery charger of claim 2, wherein: two linkage holes (209) are formed in the linkage rod (206), linkage shafts (210) are rotatably mounted in the two linkage holes (209), and the two linkage shafts (210) are fixedly mounted on one side of the brush rod (205) and one side of the U-shaped plate (202) respectively.

4. The mobile dust battery charger of claim 2, wherein: limiting sliding grooves (211) are formed in the inner walls of two sides of the fixed frame (203), limiting sliding blocks (212) are slidably mounted in the two limiting sliding grooves (211), the two limiting sliding blocks (212) are fixedly mounted on two sides of the brush rod (205) respectively, two sliding holes (213) are formed in the U-shaped plate (202), and the two limiting rods (201) are slidably mounted in the two sliding holes (213) respectively.

5. The mobile dust battery charger of claim 1, wherein: the anti-false touch structure comprises a fixing strip (300), wherein the fixing strip (300) is fixedly arranged on one side of the U-shaped plate (202), a rotating hole (302) is formed in the fixing strip (300), a rotating shaft (303) is rotatably arranged in the rotating hole (302), and a turnover baffle (301) is fixedly arranged on the rotating shaft (303).

6. The mobile dust battery charger of claim 5, wherein: the rotating shaft (303) is fixedly sleeved with a torsion spring (304), one end of the torsion spring (304) is fixedly arranged on the inner wall of the rotating hole (302), and the other end of the torsion spring (304) is fixedly arranged on the rotating shaft (303).

7. The mobile dust battery charger of claim 1, wherein: the limiting structure comprises two handles (401), the two handles (401) are respectively and fixedly arranged on the two limiting sleeves (400), the two limiting sleeves (400) are respectively and movably sleeved on the two limiting rods (201), the limiting torsion springs (402) are movably sleeved on the two limiting rods (201), one ends of the two limiting torsion springs (402) are respectively and fixedly arranged on the inner walls of the two limiting sleeves (400), and the other ends of the two limiting torsion springs (402) are fixedly arranged on one side of the U-shaped plate (202).

8. The mobile dust battery charger of claim 1, wherein: the limiting sleeve is characterized in that two limiting sliding blocks (403) are fixedly arranged on the inner wall of the limiting sleeve (400), four limiting grooves (405) are formed in the limiting rod (201), the two limiting sliding blocks (403) are movably arranged in the corresponding two limiting grooves (405) respectively, two adjusting grooves (404) are formed in the limiting rod (201), the two limiting grooves (405) on the same side are communicated with the same adjusting groove (404), a limiting rotating groove (406) is formed in the U-shaped plate (202), a limiting rotating ring (407) is rotationally arranged in the limiting rotating groove (406), and the limiting rotating ring (407) is fixedly arranged on one side of the limiting sleeve (400).

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