Charging device for code scanning gun

Abstract

The invention discloses a code scanning gun charging device, and relates to the technical field of charging devices, and the device comprises a power line which is used for connecting the device with an external power supply; the charging mechanism is connected with the charging interface of the code scanning gun and is used for charging a battery of the code scanning gun; the connecting mechanism is mounted at the bottom of the charging mechanism and connected with the charging mechanism; the clamping seat is mounted at one end of the top of the connecting mechanism and is used for fixing one end of the code scanning gun; in the use process of the code scanning gun charging device, under the elastic action of the first spring, the sliding block moves forwards, and the code scanning gun is rapidly fixed between the clamping seat and the sliding block through the cooperation of the clamping seat and the sliding block, so that the code scanning gun is effectively prevented from falling off during charging; meanwhile, pins of the sliding block are in elastic contact with the charging end of the code scanning gun, and poor contact is avoided; under the pushing of the first spring, the connecting block and the sliding block are reset forwards to drive the electrifying piece to move forwards, so that the ball at the bottom of the electrifying piece is separated from the contact block, automatic disconnection of the pin power supply is realized, and the use safety is improved.

Description

Technical Field

[0001] This invention relates to the field of charging device technology, specifically to a barcode scanner charging device. Background Technology

[0002] With the continuous development of information technology, barcode scanners, as efficient data collection devices, have been widely used in supermarkets, warehouses, logistics, and many other fields. The ease of use of barcode scanners relies heavily on the reliable support of their charging devices. However, currently available barcode scanner charging devices have many shortcomings in practical use.

[0003] For example, many charging devices are not designed to securely hold the barcode scanner, making it easy for the scanner to detach during charging due to external forces. This not only affects the continuity of charging but may also damage the scanner and the charging device itself. Furthermore, the contact stability between the charging device's pins and the scanner's charging terminal is poor, often resulting in poor contact. This not only prolongs charging time and reduces charging efficiency but may also damage the scanner's battery, affecting its lifespan. Moreover, existing charging devices often fail to automatically disconnect the power to the pins after charging is complete, posing a safety hazard and potentially wasting energy.

[0004] In view of the above problems, the present invention aims to provide a novel barcode scanner charging device, thereby improving the safety, stability and convenience of barcode scanner charging. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a barcode scanner charging device that solves the problems mentioned in the background section, such as unstable barcode scanner fixation, unstable charging contact, and failure of the power supply to automatically disconnect after charging is completed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a barcode scanner charging device, comprising: Power cord, used to connect the device to an external power source; Also includes: The charging mechanism connects to the barcode scanner's charging interface and is used to charge the barcode scanner's battery. A connecting mechanism is installed at the bottom of the charging mechanism and connected to the charging mechanism; A card holder is installed at one end of the top of the connecting mechanism and is used to fix one end of the barcode scanner. A switching mechanism, located outside the connecting mechanism and connected to the power line, is used to control the power switch; A positioning mechanism, installed inside the connecting mechanism, is used to position the charging mechanism.

[0007] Preferably, the charging mechanism includes a slider with pins installed inside. A connecting block is bolted to the surface of the slider, and one bottom end of the connecting block is connected to the end of a connecting rod. Two conductive plates are provided at the bottom of the slider, corresponding to the positive and negative terminals of the barcode scanner battery, respectively. The two conductive plates are electrically connected to the pins, and a ball bearing is provided at the bottom of the conductive plates. The pins inside the slider contact the barcode scanner charging interface, and the electrical connection between the conductive plates and the pins enables current transmission. At the same time, the sliding cooperation between the ball bearing and the connecting mechanism ensures stable and reliable contact between the pins and the barcode scanner charging terminal during charging, effectively avoiding poor contact.

[0008] Preferably, the two conductive plates are made of metal, and the conductive plates have a U-shaped structure with arc-shaped grooves at both ends of the conductive plates. The arc-shaped grooves at the bottom of the conductive plates slide in contact with the surface of the ball. The ball is made of copper. Using conductive plates made of metal and designed with a U-shaped structure, with arc-shaped grooves at both ends of the conductive plates sliding in contact with the ball, and using copper ball, can ensure the high efficiency and stability of current transmission, and enhance the contact area and conductivity between the conductive plates and the ball.

[0009] Preferably, the connecting mechanism includes a base with two grooves at one end and contact blocks distributed on both sides of the grooves. The contact blocks are bolted to the inside of the base at both ends. The ball bearing is electrically connected to the energized block via a sliding fit. The inner wall of the base and the surface of the contact blocks are both provided with arc-shaped grooves to increase the contact area with the ball bearing. By providing grooves at one end of the base and contact blocks on both sides, and achieving electrical connection between the ball bearing and the contact blocks via a sliding fit, while simultaneously increasing the contact area with the ball bearing through arc-shaped grooves on the inner wall of the base and the surface of the contact blocks, the stability and reliability of current transmission can be further improved. This design effectively solves the problems of low charging efficiency, prolonged charging time, and potential damage to the barcode scanner battery caused by poor contact in existing charging devices.

[0010] Preferably, a guide rod is fixedly connected to one end of the base. The guide rod is horizontally positioned, and a first spring is fitted around its exterior. One end of the first spring contacts a connecting block, and the interior of the connecting block slides against the outer wall of the guide rod. By providing a guide rod inside the base and a first spring fitted around it, and by ensuring the sliding contact between the connecting block and the guide rod, the charging mechanism can achieve elastic positioning and reset functions. This design not only ensures smooth insertion and removal of the barcode scanner but also maintains tight contact between the charging mechanism and the barcode scanner during charging through the elastic action of the spring, preventing loosening due to external forces. This further improves the stability and reliability of charging, effectively solving the problems of unstable barcode scanner fixation and unstable charging contact in existing charging devices. Furthermore, it automatically disconnects the power supply after charging is complete, improving safety during use.

[0011] Preferably, the switching mechanism includes a first positioning magnetic block, a second positioning magnetic block is disposed on one side of the first positioning magnetic block, and the first and second positioning magnetic blocks are respectively embedded in both sides of the base. The exterior of the first and second positioning magnetic blocks slides in contact with the interior of the fixed seat. A sliding groove is formed on the interior of the fixed seat, and positioning blocks are disposed inside both ends of the fixed seat. The positioning blocks are magnetically connected to the first and second positioning magnetic blocks through sliding engagement. A groove is formed on the interior of the fixed seat, and an energized metal block connected to the power cord is disposed inside the groove. The energized metal block inside the fixed seat contacts an energized post through sliding engagement. The energized post is embedded in one end of the base, and the two energized posts are electrically connected to two contact blocks respectively. By setting the first and second positioning magnetic blocks to be magnetically connected to the positioning blocks inside the fixed seat, and the energized metal blocks to be slidingly engaged with the energized posts, the automatic connection and disconnection of the power supply can be realized. This design automatically connects the power supply to start charging when the barcode scanner is inserted into the charging device, and automatically disconnects the power supply when the barcode scanner is removed. This effectively avoids the problem of the power supply not being automatically disconnected after charging is completed, improving the safety and energy efficiency of charging. It also prevents safety hazards caused by human error in disconnecting the power supply, further optimizing the performance of the charging device.

[0012] Preferably, the positioning mechanism includes a first mounting base, inside which a first electromagnet is disposed, and on one side of the first electromagnet a second electromagnet is disposed. The second electromagnet is fitted onto one end of a pin, and the outer wall of the pin is slidably connected to the interior of the second mounting base. Both the first and second mounting bases are installed inside a base. One end of the pin is provided with a locking block, which is connected to one end of a connecting rod. By setting the first and second electromagnets and utilizing the cooperation between the pin and the locking block, precise positioning and fixation of the charging mechanism can be achieved. When charging begins, the electromagnet is energized to generate magnetic force, pushing the pin into the groove of the locking block, thereby fixing the charging mechanism and ensuring that the barcode scanner will not shift or fall off due to external force during charging, thus improving the stability and reliability of charging. After charging is completed, the electromagnet is de-energized, and the pin is reset under the action of a spring, releasing the restriction on the locking block, allowing the charging mechanism to move smoothly and facilitating the removal of the barcode scanner. This design effectively solves the problems of unstable barcode scanner fixation and easy detachment during charging in existing charging devices, while improving the automation level and ease of use of the charging device.

[0013] Preferably, the adjacent ends of the first and second electromagnets are of the same pole. A second spring is provided on one side of the second electromagnet, and grooves are provided on both sides of the locking block, with the grooves on both sides of the locking block engaging with one end of the pin. By setting the adjacent ends of the first and second electromagnets to be of the same pole, the principle of like poles repelling is used to push the pin to move, thereby limiting and fixing the locking block. Simultaneously, the second spring allows the pin to quickly reset after the electromagnet is de-energized, releasing the locking block and allowing the charging mechanism to move smoothly, facilitating the removal of the barcode scanner. This design not only improves the stability of the barcode scanner during charging, preventing accidental removal that could interrupt charging or damage the equipment, but also enhances the automation and ease of operation of the charging device.

[0014] This invention provides a barcode scanner charging device. It has the following beneficial effects: During use, this barcode scanner charging device connects the power cord to an external power source. The barcode scanner is then inserted into the groove of the slider, ensuring the bottom of the scanner contacts the pins. Pulling the scanner backward moves the slider backward, compressing the first spring and inserting the scanner head into the holder. Under the elastic force of the first spring, the slider moves forward, and through the cooperation of the holder and slider, the scanner is quickly and firmly secured between them, effectively preventing it from falling out during charging.

[0015] Meanwhile, the slider's pins make elastic contact with the barcode scanner's charging terminal to prevent poor contact. Current is transmitted through the contact block and ball bearings to the energizing plate, and then from the energizing plate to the pins, charging the barcode scanner's internal battery. After charging is complete, pulling the barcode scanner backward moves its front end out of the holder and its rear end out of the slider. Under the push of the first spring, the connecting block and slider return to their original position, causing the energizing plate to move forward and disengage the ball bearings at the bottom of the energizing plate from the contact block, automatically disconnecting the pin power supply and improving safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the present invention; Figure 5 This is a schematic diagram of the card block structure of the present invention; Figure 6 This is a schematic diagram of the energized block structure of the present invention; Figure 7 This is a schematic diagram of the guide rod structure of the present invention; Figure 8 This is a schematic diagram of the slider structure of the present invention; Figure 9 This is a schematic diagram of the contact block structure of the present invention.

[0017] In the diagram, 1. Charging mechanism; 101. Slider; 102. Pin; 103. Connecting block; 104. Energizing plate; 105. Ball bearing; 106. Connecting rod; 2. Connecting mechanism; 201. Base; 202. Contact block; 203. Guide rod; 204. First spring; 3. Card slot; 4. Switching mechanism; 401. First positioning magnet; 402. Second positioning magnet; 403. Energizing post; 404. Positioning block; 405. Fixing seat; 5. Power cord; 6. Positioning mechanism; 601. First mounting seat; 602. First electromagnet; 603. Second electromagnet; 604. Pin; 605. Second spring; 606. Second mounting seat; 607. Card block. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: Please see Figure 1-9 This invention provides a technical solution: a barcode scanner charging device, comprising: Power cord 5 is used to connect the device to an external power source; Also includes: Charging mechanism 1 is connected to the barcode scanner charging interface and is used to charge the barcode scanner battery. The connecting mechanism 2 is installed at the bottom of the charging mechanism 1 and is connected to the charging mechanism 1; Card holder 3 is installed at one end of the top of the connecting mechanism 2 and is used to fix one end of the barcode scanner. The switching mechanism 4 is located outside the connecting mechanism 2 and is connected to the power line 5, and is used to control the power switch. Positioning mechanism 6 is installed inside connecting mechanism 2 and is used to position charging mechanism 1. This barcode scanner charging device connects to the barcode scanner charging interface via charging mechanism 1, enabling stable charging of the barcode scanner battery. Through the coordinated work of various mechanisms, it effectively solves the problem of unstable charging contact in existing charging devices. The design of connecting mechanism 2 and card holder 3 can firmly fix the barcode scanner, preventing it from falling off due to external forces during charging, thus solving the defect of unstable barcode scanner fixation. The setting of switch mechanism 4 and positioning mechanism 6 can effectively control the power switch and automatically disconnect the power after charging is completed, avoiding energy waste and safety hazards, and improving the safety and convenience of charging.

[0020] Example 2: Please see Figure 1-9This invention provides a technical solution: a charging mechanism 1 includes a slider 101, with pins 102 installed inside the slider 101. A connecting block 103 is bolted to the surface of the slider 101, with one bottom end of the connecting block 103 connected to the end of a connecting rod 106. Two conductive plates 104 are provided at the bottom of the slider 101, corresponding to the positive and negative terminals of the barcode scanner battery, respectively. The two conductive plates 104 are electrically connected to the pins 102, and ball bearings 105 are provided at the bottom of the conductive plates 104. The two conductive plates 104 are made of metal, have a U-shaped structure, and have arc-shaped grooves at both ends of the conductive plates 104. The arc-shaped grooves at the bottom of the conductive plates 104 slide against the surface of the ball bearings 105. The contact ball 105 is made of copper. The connecting mechanism 2 includes a base 201, one end of which has two grooves, and contact blocks 202 are distributed on both sides of the grooves. The two ends of the contact blocks 202 are bolted to the inside of the base 201. The ball 105 is electrically connected to the energized block through a sliding fit. The inner wall of the base 201 and the surface of the contact blocks 202 are both provided with arc-shaped grooves to increase the contact surface with the ball 105. A guide rod 203 is fixedly connected to one end of the base 201. The guide rod 203 is horizontally arranged, and a first spring 204 is sleeved on the outside of the guide rod 203. One end of the first spring 204 contacts the connecting block 103, and the inside of the connecting block 103 slides in contact with the outer wall of the guide rod 203. In this embodiment, when the device is used, one end of the power cord 5 is connected to an external power source, and then one end of the barcode scanner is inserted into the groove inside the slider 101, so that the bottom of the barcode scanner can contact the pin 102. Pulling the barcode scanner backward causes the slider 101 to move backward, which in turn compresses the first spring 204 via the connecting block 103. This allows the barcode scanner head to be inserted into the holder 3, and under the action of the first spring 204, the slider 101 is pushed forward. The cooperation between the holder 3 and the slider 101 allows the barcode scanner to be quickly fixed between the holder 3 and the slider 101, preventing it from falling off during charging. Simultaneously, it elastically pushes the pin 102 of the slider 101 to make elastic contact with the charging end of the barcode scanner, preventing... When pin 102 makes poor contact with the barcode scanner during charging, current is transmitted through contact block 202 and ball bearing 105 to energized plate 104. Energized plate 104 then transmits current to pin 102 to charge the battery inside the barcode scanner. After charging is complete, pulling the barcode scanner backward allows the front end of the barcode scanner to move out of the holder 3, and the rear end of the barcode scanner to move out of the slider 101. After the barcode scanner is removed, the first spring 204 pushes the connecting block 103 and the slider 101 forward to reset, thereby moving energized plate 104 forward. This allows the ball bearing 105 at the bottom of energized plate 104 to disengage from contact block 202, thus automatically disconnecting the power to the exposed pin 102, which improves safety during use.

[0021] Example 3: Please see Figure 1-9 This invention provides a technical solution: a switching mechanism 4 includes a first positioning magnetic block 401, a second positioning magnetic block 402 disposed on one side of the first positioning magnetic block 401, and the first positioning magnetic block 401 and the second magnetic block are respectively embedded in both sides of the base 201. The exterior of the first positioning magnetic block 401 and the second positioning magnetic block 402 are in sliding contact with the interior of the fixed seat 405. A sliding groove is provided on the interior of the fixed seat 405. Positioning blocks 404 are disposed inside both ends of the fixed seat 405. The positioning blocks 404 are magnetically connected to the first positioning magnetic block 401 and the second positioning magnetic block 402 through sliding engagement. A groove is provided on the interior of the fixed seat 405, and an energized metal block is disposed inside the groove of the fixed seat 405 and connected to the power line 5. The energized metal block inside the fixed seat 405 is in contact with the energized post 403 through sliding engagement. The energized post 403 is embedded in the base. One end of base 201 is connected to two contact blocks 202, and two energized posts 403 are electrically connected to two contact blocks 202 respectively; the positioning mechanism 6 includes a first mounting base 601, a first electromagnet 602 is provided inside the first mounting base 601, a second electromagnet 603 is provided on one side of the first electromagnet 602, the second electromagnet 603 is fitted onto one end of a pin 604, the outer wall of the pin 604 is slidably connected to the inside of the second mounting base 606, both the first mounting base 601 and the second mounting base 606 are installed inside the base 201, a locking block 607 is provided at one end of the pin 604, the locking block 607 is connected to one end of the connecting rod 106; the adjacent ends of the first electromagnet 602 and the second electromagnet 603 are of the same pole, a second spring 605 is provided on one side of the second electromagnet 603, grooves are provided on both sides of the locking block 607, and the grooves on both sides of the locking block 607 are engaged with one end of the pin 604; In this embodiment, when the barcode scanner is charging, it moves forward between the slider 101 and the card holder 3. This causes the base 201 to slide forward inside the fixed base 405, allowing the energized post 403 at the front end of the base 201 to insert into the fixed base 405 and contact its energized metal block, thus powering the device. When the device is powered, the first electromagnet 602 and the second electromagnet 603 are energized and generate magnetic repulsion. The second electromagnet 603 then pushes the pin 604, causing it to insert into the grooves on both sides of the card block 607. The card block 607, via the connecting rod 106, fixes the position of the slider 101, preventing the barcode scanner from being removed between the slider 101 and the card block 607. This helps to prevent accidental disconnection of the charging device when charging the barcode scanner. When the barcode scanner is pulled backward after charging is complete, the base 201 moves backward, allowing the power post 403 to move backward with the base 201. This allows the power post 403 to be removed from the fixed base 405, thus disconnecting the power supply to the power post 403. This makes it easier to turn off the power when removing the barcode scanner, further improving the safety of the device. When the power is disconnected, the second spring 605 pushes the pin 604 to reset, thereby releasing the limit on the locking block 607 and allowing the slider 101 to slide, making it easy to remove the barcode scanner after use.

[0022] The overall workflow of this solution Connect one end of power cord 5 to an external power source to ensure the charging device is in standby mode.

[0023] Insert one end of the barcode scanner into the groove inside the slider 101, so that the bottom of the barcode scanner contacts the pin 102 inside the slider 101.

[0024] Pull the barcode scanner backward, and the barcode scanner will drive the slider 101 to move backward. The slider 101 will compress the first spring 204 through the connecting block 103.

[0025] The barcode scanner head is inserted into the card holder 3. Under the elastic action of the first spring 204, the slider 101 moves forward. Through the cooperation between the card holder 3 and the slider 101, the barcode scanner is quickly fixed between the card holder 3 and the slider 101 to prevent it from falling off during charging.

[0026] The pins 102 of the slider 101 make elastic contact with the charging end of the barcode scanner to ensure stable contact and avoid poor contact.

[0027] Current is transmitted through contact block 202 and ball bearing 105 to energized plate 104, and then from energized plate 104 to pin 102 to charge the internal battery of the barcode scanner.

[0028] At the same time, the base 201 slides forward within the fixed base 405, and the energized post 403 is inserted into the energized metal block within the fixed base 405 to power the device.

[0029] When the first electromagnet 602 and the second electromagnet 603 are energized, they generate magnetic repulsion, which pushes the pin 604 into the grooves on both sides of the locking block 607. The locking block 607 fixes the position of the slider 101 through the connecting rod 106 to prevent the barcode scanner from being accidentally pulled out during charging.

[0030] After charging is complete, the base 201 moves backward, and the energizing post 403 moves out of the energizing metal block in the fixed base 405, disconnecting the power supply to the energizing post 403 and achieving automatic power disconnection. When the device power is disconnected, the second spring 605 pushes the pin 604 to reset, releasing the restriction on the locking block 607 and allowing the slider 101 to slide freely. Holding the barcode scanner and pulling it backward, the front end of the barcode scanner moves out of the locking base 3, and the rear end moves out of the slider 101.

[0031] Under the push of the first spring 204, the connecting block 103 and the slider 101 are reset forward, which drives the energized piece 104 to move forward, so that the ball 105 at the bottom of the energized piece 104 is disengaged from the contact block 202, further ensuring the automatic disconnection of the power supply to the pin 102 and improving the safety of use.

[0032] Remove the barcode scanner to complete the charging process.

[0033] Through the above workflow, the barcode scanner charging device in this solution can achieve rapid barcode scanner fixation, stable charging, and automatic power-off upon completion of charging. This effectively solves the problems of unstable barcode scanner fixation, unstable charging contact, and failure to automatically disconnect power after charging in existing charging devices, thus improving the safety, stability, and convenience of charging. The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A code scanning gun charging device, comprising: a power cord (5) for connecting the device to an external power source; characterized in that it further comprises: a charging mechanism (1) connected to the code scanning gun charging interface for charging the code scanning gun battery; a connecting mechanism (2) installed at the bottom of the charging mechanism (1) and connected to the charging mechanism (1); a card holder (3) installed at one end of the top of the connecting mechanism (2) for fixing one end of the code scanning gun; a switch mechanism (4) located outside the connecting mechanism (2) and connected to the power cord (5) for controlling the power switch; a positioning mechanism (6) installed inside the connecting mechanism (2) for positioning the charging mechanism (1).

2. The charging device of claim 1, wherein: The charging mechanism (1) comprises a sliding block (101) with a pin (102) installed inside, a connecting block (103) installed on the surface of the sliding block (101) by bolts, and a connecting rod (106) connected to one end of the connecting block (103), two power supply pieces (104) provided at the bottom of the sliding block (101), two power supply pieces (104) corresponding to the positive and negative electrodes of the code scanning gun battery respectively, the power supply pieces (104) being electrically connected to the pin (102), and a ball (105) provided at the bottom of the power supply piece (104).

3. The charging device of claim 2, wherein: The two power supply pieces (104) are made of metal, the power supply piece (104) has a U-shaped structure, and the bottom of the two ends of the power supply piece (104) is provided with an arc-shaped groove, the arc-shaped groove at the bottom of the power supply piece (104) is in sliding contact with the surface of the ball (105), and the ball (105) is made of copper.

4. The charging device of claim 3, wherein: The connecting mechanism (2) comprises a base (201) provided with two grooves at one end, and contact blocks (202) distributed on both sides of the grooves, the contact blocks (202) being installed at both ends inside the base (201) by bolts, the ball (105) being electrically connected to the power supply block through sliding fit, and the inner wall of the base (201) and the surface of the contact block (202) being provided with arc-shaped grooves for improving the contact surface with the ball (105).

5. The charging device of claim 4, wherein: One end of the base (201) is fixedly connected with a guide rod (203), the guide rod (203) is horizontally arranged, a first spring (204) is sleeved outside the guide rod (203), one end of the first spring (204) is in contact with the connecting block (103), and the connecting block (103) is in sliding contact with the outer wall of the guide rod (203).

6. The charging device of claim 5, wherein: The switch mechanism (4) includes a first positioning magnetic block (401), one side of the first positioning magnetic block (401) is provided with a second positioning magnetic block (402), and the first positioning magnetic block (401) and the second magnetic block are embedded on both sides of the base (201), the first positioning magnetic block (401) and the second positioning magnetic block (402) are in sliding contact with the inner side of the fixed seat (405), a sliding groove is formed in the inner side of the fixed seat (405), the inner side of the fixed seat (405) is provided with a positioning block (404), the positioning block (404) is connected with the first positioning magnetic block (401) and the second positioning magnetic block (402) by magnetic attraction through sliding fit, a recess is formed in the inner side of the fixed seat (405), and a power-on metal block is arranged in the recess, and the power-on metal block is connected with the power supply wire (5), the power-on metal block in the fixed seat (405) is in contact with the power-on column (403) through sliding fit, the power-on column (403) is embedded in one end of the base (201), and the two power-on columns (403) are electrically connected with the two contact blocks (202) respectively.

7. The charging device of claim 6, wherein: The positioning mechanism (6) includes a first mounting seat (601), the first mounting seat (601) is provided with a first electromagnet (602) inside, one side of the first electromagnet (602) is provided with a second electromagnet (603), the second electromagnet (603) is sleeved on one end of the bolt (604), the outer wall of the bolt (604) is in sliding connection with the inner side of the second mounting seat (606), and the first mounting seat (601) and the second mounting seat (606) are both mounted in the base (201). One end of the bolt (604) is provided with a clamping block (607), and the clamping block (607) is connected with one end of the connecting rod (106).

8. The charging device of claim 7, wherein: The first electromagnet (602) and the second electromagnet (603) are adjacent to the same pole, the second electromagnet (603) is provided with a second spring (605) on one side, the clamping block (607) is provided with a recess on both sides, and the recess on both sides of the clamping block (607) is connected with one end of the bolt (604).

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