Multifunctional camera battery charger

By designing charging components and fixed structures with adjustable positions, the problem that the camera battery charger cannot be compatible with different brands and models is solved, and the convenience and safety of the multi-function camera battery charger is achieved, which is suitable for stable charging of multiple batteries.

CN120454245AInactive Publication Date: 2025-08-08JIADE ENERGY TECH (ZHUHAI) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510542705.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2025-08-08
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing camera battery chargers are not compatible with batteries of different brands and models, resulting in users needing to carry multiple chargers, increasing the burden of travel and risk of confusion or loss.

Method used

A multi-function camera battery charger is designed, adopting charging components and fixed components with adjustable positions. Through sliding and rotary connection structures, it can adapt to the contact positions and sizes of different batteries, realize stable charging of different batteries, and automatically power off and fire retardant in abnormal situations to improve safety.

Benefits of technology

It realizes compatible charging of batteries of different brands and models, reduces the burden of carrying, improves the convenience and safety of use, and prevents harm caused by abnormal charging.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120454245A_ABST
    Figure CN120454245A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of chargers, in particular to a multifunctional camera battery charger, and a charging assembly comprises a rail frame fixedly connected to a mounting frame / bottom plate; the movable seat is connected to the rail frame in a sliding manner; the mounting plate is arranged on the moving seat; the butt joints are slidably connected to the mounting plate, the number of the butt joints is M * N, the values of M and N are positive integers, the butt joints are arranged on the mounting plate in an array mode, and the butt joints are electrically connected with the charger body; the first spring is fixedly connected between the butt joint and the mounting plate; and the first screw rods are rotationally connected to the mounting frame / bottom plate, and the first screw rods corresponding to the mounting frame / bottom plate in position are in threaded connection with the moving seats. According to the invention, the position-adjustable charging assembly is used, so that the position of the butt joint can be changed according to the position of the contact on the battery, that is, the battery charger can charge different batteries, can be suitable for different batteries, achieves the effect of universal charging, and expands the range of use requirements of the battery charger.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of chargers, and in particular to a multifunctional camera battery charger. Background Art

[0002] To meet the demands of portability and outdoor use, most cameras rely on batteries as a continuous power source during recording. A camera battery charger is an essential accessory. A camera battery charger typically consists of a housing, a circuit board, and a docking connector. The circuit board converts input power to a voltage and current suitable for the battery, which is then connected to the battery contacts via the docking connector, enabling power transmission.

[0003] However, due to the differences in camera battery size and docking connector locations among different brands and models, users often need to carry multiple chargers when carrying multiple cameras of different brands or models. This not only increases travel burdens but can also lead to confusion or loss of chargers, affecting their use. Therefore, there is an urgent need to design a multifunctional camera battery charger that can accommodate a variety of sizes and docking connector locations. Summary of the Invention

[0004] The present invention aims to overcome the technical deficiencies of the prior art and proposes a multifunctional camera battery charger that is suitable for batteries of various models and sizes.

[0005] The technical solution of the present invention is: a multifunctional camera battery charger, comprising: a charger body, a mounting frame, and a base plate; further comprising: a charging assembly respectively disposed on the mounting frame and the base plate; a first handle slidably connected to the mounting frame; a push block rotatably connected to the first handle; an adjuster fixedly connected to the mounting frame; and a paddle slidably connected to the adjuster, the paddle being fixedly connected to the push block; The charging assembly includes: a rail frame fixedly connected to the mounting frame / base plate; a movable base slidably connected to the rail frame; a mounting plate arranged on the movable base; a docking joint slidably connected to the mounting plate, wherein the docking joints are provided in M×N numbers, where M and N are positive integers, and the docking joints are arranged in an array on the mounting plate, and the docking joints are electrically connected to the charger body; a first spring fixedly connected between the docking joint and the mounting plate; a first screw rotatably connected to the mounting frame / base plate, and the first screw at the corresponding position is threadedly connected to the movable base.

[0006] As a preferred technical solution of the present invention, in the charging assembly on the base plate, the mounting plate is fixedly connected to the movable base; In the charging assembly on the mounting frame, the mounting plate is slidably connected to the movable seat, and further comprises: a second screw rotatably connected to the mounting plate; a second handle rotatably connected to the movable seat, the second handle being threadedly connected to the second screw.

[0007] As a preferred technical solution of the present invention, the present invention further comprises: a mounting shaft fixedly connected to the bottom of the base plate, wherein at least two mounting shafts are provided; a fixing assembly rotatably provided on the mounting shaft, wherein each mounting shaft is provided with at least one set of fixing assemblies; The fixing assembly includes: a rotating bracket rotatably connected to the mounting shaft; a first torsion spring fixedly connected between the rotating bracket and the mounting shaft; a hand rotatably connected to the end of the rotating bracket; a second torsion spring fixedly connected between the hand and the rotating bracket; and a roller rotatably connected to the rotating bracket.

[0008] As a preferred technical solution of the present invention, it also includes: a rotating rod rotatably connected to the base plate, the rotating rod is provided with a threaded groove; a connecting block slidably connected to the base plate, the connecting block is threadedly matched with the threaded groove on the rotating rod; a clamping block slidably connected to the connecting block, the clamping block is provided with an inclined surface that matches the rotating bracket, the number of clamping blocks is consistent with the number of groups of fixed components, and each clamping block is matched one by one with each group of fixed components; a third spring fixedly connected between the clamping block and the connecting block; a clamping hole is provided on the rotating bracket, and the clamping block can be clamped into the clamping hole; a third handle rotatably connected to the charger body, the third handle is fixedly connected to the rotating rod; a third torsion spring fixedly connected between the third handle and the charger body.

[0009] As a preferred technical solution of the present invention, it also includes: a shift bar fixedly connected to the third handle; an electric push rod fixedly connected to the charger body; and a contact block fixedly connected to the telescopic rod end of the electric push rod, the contact block being in contact with the shift bar.

[0010] As a preferred technical solution of the present invention, it also includes: a distribution pipe fixedly connected to the installation frame; a nozzle fixedly connected to the distribution pipe, the nozzle facing the middle of the installation frame; a storage box fixedly connected to the charger body, the storage box storing flame retardants; a connecting pipe fixedly connected and connected between the distribution pipe and the storage box.

[0011] As a preferred technical solution of the present invention, it also includes: a moving block slidably connected to the charger body, the moving block contacts the contact block; a rack fixedly connected to the moving block; a gear rotatably connected to the connecting pipe, the gear meshing with the rack; a valve plate rotatably connected to the connecting pipe, the valve plate is used to open and close the connecting pipe, the valve plate and the gear are coaxially fixed; a fourth spring fixedly connected between the charger body and the moving block.

[0012] As a preferred technical solution of the present invention, it also includes: a radiator fixedly connected to the charger body.

[0013] Beneficial effects of the present invention: The present invention uses a charging component with adjustable position, so that the position of the docking terminal can be changed according to the position of the contacts on the battery. That is, the present invention can charge different batteries and can be applied to different batteries, achieving the effect of "universal charging" and expanding the scope of use of the present invention.

[0014] The present invention uses a fixing component to fix the battery, which is achieved by rotating the rotating bracket and the handle. The handle can adapt to the rotation angle so that batteries of different sizes can be charged stably, further improving the applicability of the present invention to different batteries, and is used in conjunction with the fixing component to increase the fixing stability.

[0015] The present invention uses an electric push rod that can be activated in the event of abnormal charging to control the locking component to unlock the battery, stop the battery charging to prevent the temperature from continuing to rise, and automatically spray flame retardants to prevent the damage from expanding into combustion and explosion, thereby improving the safety of the battery and the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0018] Figure 3 This is a cross-sectional view of the position structure of the two sets of charging components on the installation frame and the base plate in the present invention.

[0019] Figure 4 Schematic diagram of the connection structure between two groups of charging components in the present invention.

[0020] Figure 5 Schematic diagram of the connection structure of the charging assembly on the mounting frame after unfolding in the present invention.

[0021] Figure 6 This is a cross-sectional view of the position structure of the fixing component on the base plate in the present invention.

[0022] Figure 7 This is a separation diagram of the connection structure of the fixed component in the present invention.

[0023] Figure 8 This is a separation diagram of the connection structure of the fixing component and the control component in the present invention.

[0024] Figure 9 It is a schematic diagram of the matching structure of the clamping component and the fixing component in the present invention.

[0025] Figure 10 This is a cross-sectional view of the position structure of the distribution pipe, nozzle, storage box and electric push rod in the present invention.

[0026] Figure 11It is a schematic diagram of the coordination structure of the contact block and the moving block in the present invention.

[0027] Figure 12 This is a separation diagram of the connection structure of the valve plate, rack and gear in the present invention.

[0028] Marked in the figure: 101_charger body, 102_installation frame, 103_bottom plate, 201_rail frame, 202_moving seat, 203_installation plate, 204_docking joint, 205_first spring, 206_first screw, 207_transmission shaft, 208_first bevel gear, 209_transmission assembly, 210_first handle, 211_push block, 212_adjuster, 213_paddle, 214_second screw, 215_first guide rod, 216_second handle, 30_fixing assembly, 301_installation shaft, 302_rotating support frame, 303_first torsion spring, 304_handle, 305_second torsion spring, 306_roller Wheel, 40_control component, 401_fixed plate, 402_rotating rod, 403_second bevel gear, 404_thread groove, 41_fixed component, 411_second guide rod, 412_connecting block, 413_block, 414_third spring, 415_card hole, 421_third handle, 422_third torsion spring, 423_dial, 424_electric push rod, 425_contact block, 501_distribution pipe, 502_sprinkler, 503_storage box, 504_connecting pipe, 511_third guide rod, 512_moving block, 513_rack, 514_gear, 515_valve plate, 516_fourth spring, 601_radiator. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings.

[0030] Embodiment: A multifunctional camera battery charger, such as Figure 1-Figure 2 As shown, it includes: a charger body 101, which is connected to a socket to transmit power to the battery; a mounting frame 102 fixedly mounted on the charger body 101, in which the battery is charged; and a base plate 103 fixedly mounted at the bottom of the mounting frame 102.

[0031] like Figure 1-Figure 5As shown, it also includes: charging components respectively arranged on the mounting frame 102 and the bottom plate 103. Since the contacts on some batteries are arranged on the bottom surface and some are arranged on the side, the two sets of charging components respectively charge batteries with contacts in different positions. The charging components include: a rail 201 fixedly mounted on the mounting frame 102 / bottom plate 103; a movable base 202 slidably mounted on the rail 201; a mounting plate 203 arranged on the movable base 202; a docking head 204 slidably mounted on the mounting plate 203, and the docking heads 204 are provided with 3×5, and the docking heads 204 are arranged in an array on the mounting frame 102 / bottom plate 103. On the mounting plate 203, the docking connector 204 is docked with the contact, and the docking connector 204 is electrically connected to the charger body 101. The charger body 101 converts the input power into a voltage and current suitable for the battery, and then charges the battery through the docking connector 204 and the contacts; a first spring 205 is fixedly installed between the docking connector 204 and the mounting plate 203; a first screw 206 is rotatably installed on the mounting frame 102 / base plate 103, and the first screw 206 at the corresponding position is threadedly installed with the movable base 202. The first screw 206 rotates to control the movement of the movable base 202, thereby changing the position of the docking connector 204.

[0032] The invention also includes: a transmission shaft 207 rotatably mounted on the mounting frame 102 and the base plate 103, the two transmission shafts 207 are respectively connected to the two first screw rods 206. In this embodiment, one of the transmission shafts 207 is fixedly mounted on the first screw rod 206 on the base plate 103, and the other transmission shaft 207 is connected to the first screw rod 206 on the mounting frame 102 using a transmission assembly 209; first bevel gears 208 are respectively fixedly mounted on the two transmission shafts 207, and the two first bevel gears 208 are engaged. Through the transmission shaft 207 and the first bevel gears 208, the two first screw rods 206 can rotate synchronously. That is, the two sets of charging components will be adjusted synchronously; the first handle 210 is slidably installed on the installation frame 102, and the first handle 210 is connected to the transmission shaft 207 on the installation frame 102 with a cross key, so that the first handle 210 can move relative to the transmission shaft 207 while maintaining the control of the rotation of the transmission shaft 207; the push block 211 installed on the first handle 210 is rotated; the regulator 212 is fixedly installed in the installation frame 102; the paddle 213 installed on the regulator 212 is slidably installed, the paddle 213 is used to manipulate the regulator 212 to control the power supply of the two sets of charging components, and the paddle 213 is fixedly installed with the push block 211.

[0033] In the charging assembly on the base plate 103, the mounting plate 203 is fixedly mounted on the movable seat 202. In the charging assembly on the mounting frame 102, it also includes: a first guide rod 215 fixedly mounted on the mounting plate 203, the first guide rod 215 and the movable seat 202 are slidingly mounted, that is, the mounting plate 203 is slidingly mounted on the movable seat 202 through the first guide rod 215; a second screw 214 rotatably mounted on the mounting plate 203; a second handle 216 rotatably mounted on the movable seat 202, the second handle 216 is threadedly mounted on the second screw 214, and the second handle 216 slides on the mounting frame 102.

[0034] When using this charger to charge any brand of camera battery, place the battery in the mounting frame 102, select the charging component according to the position of the contact on the battery, assuming that the battery contact is set on the side, move the first handle 210, control the paddle 213 to move the control regulator 212 through the push block 211, control the charging component on the side of the mounting frame 102 to be powered on, and control the charging component on the bottom plate 103 to be powered off; after completion, rotate the first handle 210, drive the first screw 206 to rotate through the transmission shaft 207, control the movement of the movable base 202, move the docking head 204 to contact the contact on the battery, and at the same time, the docking head in contact with the battery 204 moves relative to the mounting plate 203, the first spring 205 is compressed, and finally, the charger body 101 is inserted into the socket to charge the battery; similarly, when the battery contacts are set on the bottom surface, move the first handle 210 to change the charging component on the bottom plate 103 to power on, and then rotate the first handle 210 to adjust the position of the charging component on the bottom plate 103; due to the size differences between different batteries, the charging component on the side of the mounting frame 102 may have poor contact with the battery. At this time, rotate the second handle 216 to control the docking joint 204 on the mounting frame 102 to move toward the battery so that it is in full contact with the battery contacts.

[0035] like Figure 1 、 Figure 2 、 Figure 6 and Figure 7As shown, it also includes: a mounting shaft 301 fixedly mounted on the bottom of the base plate 103, and a mounting shaft 301 is provided on each of the four sides of the base plate 103; a fixing component 30 rotatably mounted on the mounting shaft 301, the fixing component 30 passes through the base plate 103 and contacts the battery to stably fix the battery in the mounting frame 102, and a group of fixing components 30 are provided on both sides of each mounting shaft 301, and the fixing component 30 includes: a rotating bracket 302 rotatably mounted on the mounting shaft 301, the rotating bracket 302 will contact the bottom surface of the battery; a first torsion spring 303 fixedly mounted between the rotating bracket 302 and the mounting shaft 301; a hand 304 rotatably mounted on the end of the rotating bracket 302, the hand 304 will contact the side of the battery; a second torsion spring 305 fixedly mounted between the hand 304 and the rotating bracket 302; a roller 306 rotatably mounted on the rotating bracket 302, and the rotating bracket 302 rolls in contact with the bottom surface of the battery through the roller 306.

[0036] When placing a battery in mounting frame 102, the battery's downward movement pushes the rotating bracket 302 to rotate, twisting the first torsion spring 303. The rotating bracket 302 rotates, causing the handle 304 to press against the side of the battery, twisting the second torsion spring 305. All the fixing components 30 work together to center the battery. The second torsion spring 305 secures the battery's position, allowing batteries of different sizes to be stably placed and charged in this charger. After charging is complete, the battery is removed, and the first and second torsion springs 303 and 305 return the fixing components 30 to their original positions.

[0037] like Figure 1 、 Figure 2 、 Figure 8 and Figure 9 As shown, it also includes: a control component 40 arranged at the bottom of the base plate 103, and the control component 40 is provided with four groups. The control component 40 includes: a fixed plate 401 fixedly installed at the bottom of the base plate 103; a rotating rod 402 rotatably installed on the fixed plate 401, and two sections of thread grooves 404 are provided on the rotating rod 402; a second bevel gear 403 fixedly installed on the rotating rod 402, and the second bevel gears 403 on the rotating rods 402 in two adjacent groups of control components 40 are engaged to make the rotating rods 402 in all control components 40 rotate synchronously.

[0038] The invention also includes: a fixing assembly 41 provided at the bottom of the base plate 103, the fixing assembly 41 is used to limit the rotation of the bracket 302, so as to increase the stability of the fixing assembly 30 in fixing the battery, the fixing assembly 41 is provided with eight groups, corresponding to the eight groups of fixing assemblies 30, and each group of control assemblies 40 cooperates with the fixing assembly 41 to synchronously control all the fixing assemblies 41, and the fixing assembly 41 includes: a second guide rod 411 fixedly mounted on the fixing plate 401; a connecting block 412 slidably mounted on the second guide rod 411, the connecting block 412 is threadedly engaged with the thread groove 404 on the rotating rod 402; a clamping block 413 slidably mounted on the connecting block 412, and a sloped surface is provided on the clamping block 413 that cooperates with the rotating bracket 302; a third spring 414 fixedly mounted between the clamping block 413 and the connecting block 412; Figure 7 As shown, a locking hole 415 is provided on the rotating bracket 302 , and the locking block 413 can be locked into the locking hole 415 .

[0039] It also includes: a third handle 421 rotatably mounted on the charger body 101, the third handle 421 being fixed to one of the rotating rods 402; a third torsion spring 422 fixedly mounted between the third handle 421 and the charger body 101; a dial 423 fixedly mounted on the third handle 421; an electric push rod 424 fixedly mounted in the charger body 101, the electric push rod 424 being provided with a sensor, the sensor being arranged on the charger body 101 to sense abnormal temperature on the charger body 101 and control the operation of the electric push rod 424; a contact block 425 fixedly mounted on the telescopic rod end of the electric push rod 424, the contact block 425 being in contact with the dial 423.

[0040] When the battery is placed and the rotating bracket 302 is controlled to rotate, the end of the rotating bracket 302 moves downward and contacts the block 413. Under the action of the inclined surface on the block 413, the block 413 is squeezed and slides relative to the connecting block 412, and the third spring 414 is compressed until the relative position between the rotating bracket 302 and the block 413 makes the block 413 face the clamping hole 415. Then the third spring 414 can be reset to clamp the block 413 into the clamping hole 415. At this time, the position of the rotating bracket 302 is fixed, so that the battery can be stably fixed by the clamping assembly 41.

[0041] When the battery needs to be removed, the third handle 421 is rotated to control all the rotating rods 402 to rotate. The rotating rods 402 control the movement of all the connecting blocks 412 through the threaded grooves 404 thereon, and the clamping block 413 is removed from the clamping hole 415 to unlock the fixation of the rotating bracket 302. The first torsion spring 303 can then reset the rotating bracket 302 and unlock the fixation of the battery.

[0042] When charging the battery, if an unexpected situation occurs during the process, causing abnormal battery charging and temperature rise, the sensor of the electric push rod 424 will control the electric push rod 424 to extend its rod end, rotate the dial 423 by moving the contact block 425, and then rotate the third handle 421, operating the locking component 41 to unlock the fixing component 30, so that the battery is ejected, and the charging of the battery can be stopped to prevent the temperature from continuing to rise and causing potential hazards to further expand.

[0043] like Figure 2 、 Figure 10 、 Figure 11 and Figure 12 As shown, it also includes: a distribution pipe 501 fixedly installed in the top of the installation frame 102; a nozzle 502 fixedly installed on the distribution pipe 501, and the nozzle 502 is facing the middle of the installation frame 102; a storage box 503 fixedly installed on the charger body 101, and a flame retardant useful for fire extinguishing is stored in the storage box 503. In this embodiment, the flame retardant is carbon dioxide; a connecting pipe 504 fixedly installed between the distribution pipe 501 and the storage box 503, and the flame retardant in the storage box 503 is supplied to the nozzle 502 through the connecting pipe 504 and the distribution pipe 501.

[0044] It also includes: a third guide rod 511 fixedly installed in the charger body 101; a moving block 512 slidably installed on the third guide rod 511, the moving block 512 is in contact with the contact block 425; a rack 513 fixedly installed on the moving block 512; a gear 514 rotatably installed on the connecting pipe 504, the gear 514 is engaged with the rack 513; a valve plate 515 rotatably installed in the connecting pipe 504, the valve plate 515 controls the opening and closing of the connecting pipe 504, and the valve plate 515 is coaxially fixed with the gear 514; and a fourth spring 516 fixedly installed between the third guide rod 511 and the moving block 512.

[0045] When a temperature abnormality occurs between the charger body 101 and the battery, the electric push rod 424 will also control the movable block 512 to move upward through the contact block 425, and the rack 513 on the movable block 512 will control the gear 514 to rotate. Therefore, the valve plate 515 rotates to open the connecting pipe 504, allowing the nozzle 502 to spray out the flame retardant, thereby reducing the temperature of the battery and preventing the battery from further combustion and explosion due to the increase in temperature, thereby improving the safety of the battery and the charger.

[0046] like Figure 1-Figure 2 As shown, it also includes: a radiator 601 fixedly mounted on the charger body 101, the radiator 601 is used to dissipate the heat generated by the battery charging to prevent the charger body 101 and the battery from being damaged due to concentrated heat, thereby improving the safety of the battery and the charger.

[0047] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

Claims

1. A multifunctional camera battery charger comprising: A charger body (101), a mounting frame (102) and a bottom plate (103); characterized in that it further comprises: charging components respectively arranged on the mounting frame (102) and the bottom plate (103), the two groups of charging components respectively charging batteries having contacts at different side positions; a first handle (210) movably connected to the mounting frame (102); a push block (211) rotatably connected to the first handle (210); a regulator (212) fixedly connected to the mounting frame (102); and a paddle (213) slidably connected to the regulator (212), the paddle (213) being used to manipulate the regulator (212) to control the two groups of charging components to be energized, the paddle (213) being fixedly connected to the push block (211); The charging assembly comprises: a rail frame (201) fixedly connected to the mounting frame (102) / bottom plate (103); a movable seat (202) slidably connected to the rail frame (201); a mounting plate (203) arranged on the movable seat (202); a docking joint (204) slidably connected to the mounting plate (203), wherein the docking joints (204) are provided with M×N numbers, where the values of M and N are positive integers, and the docking joints (204) are arranged in an array on the mounting plate (203), and the docking joints (204) are used to connect with the contacts, and the docking joints (204) are electrically connected to the charger body (101); a first spring (205) fixedly connected between the docking joint (204) and the mounting plate (203); and a first screw (206) rotatably connected to the mounting frame (102) / bottom plate (103), wherein the first screw (206) at the corresponding position is threadedly connected to the movable seat (202).

2. A multifunctional camera battery charger as claimed in claim 1, characterized in that: In the charging assembly on the base plate (103), the mounting plate (203) is fixedly connected to the movable seat (202); In the charging assembly on the mounting frame (102), the mounting plate (203) is slidably connected to the movable seat (202), and further comprises: a second screw (214) rotatably connected to the mounting plate (203); a second handle (216) rotatably connected to the movable seat (202), and the second handle (216) is threadedly connected to the second screw (214).

3. A multifunctional camera battery charger as claimed in claim 2, characterized in that: Also includes: A mounting shaft (301) fixedly connected to the bottom of the base plate (103), wherein at least two mounting shafts (301) are provided; a fixing assembly (30) rotatably provided on the mounting shaft (301) for fixing the battery, wherein each mounting shaft (301) is provided with at least one set of fixing assemblies (30); The fixing assembly (30) includes: a rotating bracket (302) rotatably connected to the mounting shaft (301), the rotating bracket (302) will contact the bottom surface of the battery; a first torsion spring (303) fixedly connected between the rotating bracket (302) and the mounting shaft (301); a hand (304) rotatably connected to the end of the rotating bracket (302), the hand (304) will contact the side surface of the battery; a second torsion spring (305) fixedly connected between the hand (304) and the rotating bracket (302); and a roller (306) rotatably connected to the rotating bracket (302), the rotating bracket (302) rollingly contacts the bottom surface of the battery through the roller (306).

4. A multifunctional camera battery charger as claimed in claim 3, characterized in that: Also includes: A rotating rod (402) is rotatably connected to the bottom plate (103), and a thread groove (404) is provided on the rotating rod (402); a connecting block (412) is slidably connected to the bottom plate (103), and the connecting block (412) is threadedly engaged with the thread groove (404) on the rotating rod (402); a clamping block (413) is slidably connected to the connecting block (412), and a slant surface is provided on the clamping block (413) that is engaged with the rotating bracket (302). The number of the clamping blocks (413) is consistent with the number of groups of the fixed assembly (30), and each clamping block (413) is screwed. 3) cooperating with each group of fixed components (30); a third spring (414) fixedly connected between the clamping block (413) and the connecting block (412); a clamping hole (415) is provided on the rotating support (302), and the clamping block (413) can be clamped into the clamping hole (415); a third handle (421) rotatably connected to the charger body (101), the third handle (421) being fixedly connected to the rotating rod (402); and a third torsion spring (422) fixedly connected between the third handle (421) and the charger body (101).

5. A multifunctional camera battery charger as claimed in claim 4, characterized in that: Also includes: A shift bar (423) fixedly connected to the third handle (421); an electric push rod (424) fixedly connected to the charger body (101); and a contact block (425) fixedly connected to the telescopic rod end of the electric push rod (424), wherein the contact block (425) contacts the shift bar (423).

6. A multifunctional camera battery charger as claimed in claim 5, characterized in that: Also includes: A distribution pipe (501) fixedly connected to the installation frame (102); a nozzle (502) fixedly connected to the distribution pipe (501), the nozzle (502) facing the middle of the installation frame (102); a storage box (503) fixedly connected to the charger body (101), the storage box (503) storing flame retardants; and a connecting pipe (504) fixedly connected and communicating between the distribution pipe (501) and the storage box (503).

7. A multifunctional camera battery charger as claimed in claim 6, characterized in that: Also includes: A moving block (512) is slidably connected to the charger body (101), and the moving block (512) contacts the contact block (425); a rack (513) is fixedly connected to the moving block (512); a gear (514) is rotatably connected to the connecting pipe (504), and the gear (514) and the rack (513) are meshed; a valve plate (515) is rotatably connected to the connecting pipe (504), and the valve plate (515) is used to open and close the connecting pipe (504), and the valve plate (515) and the gear (514) are coaxially fixed; and a fourth spring (516) is fixedly connected between the charger body (101) and the moving block (512).

8. A multifunctional camera battery charger as claimed in claim 7, characterized in that: Also includes: A radiator (601) is fixedly connected to the charger body (101) for dissipating heat.