A charger plug with a retractable waterproof device

Abstract

The present invention discloses a retractable waterproof device attached to a charger plug, which relates to the technical field of plug waterproofing, and includes a mounting frame, the mounting frame is provided with U-shaped grooves symmetrically distributed along the mounting frame, the mounting frame is rotatably connected with a pressing frame, the mounting frame and the pressing frame are both telescopically arranged, the pressing frame is provided with U-shaped grooves symmetrically distributed along the pressing frame, a sealing film for waterproofing a connector inserted into a connecting seat is fixedly connected between the mounting frame and the pressing frame, the sealing film is elastically arranged, the wires of the connecting seat and the connector are located at a position of the sealing film close to the U-shaped groove, and a torsion spring symmetrically distributed along the mounting frame is fixedly connected between the mounting frame and the pressing frame. The present invention uses a sealing film to wrap the connector inserted into the connecting seat in all directions, effectively preventing moisture in an outdoor humid environment from affecting the safety of the power connection, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of plug waterproofing, and in particular to a retractable waterproofing device attached to a charger plug. Background Art

[0002] In outdoor environments, when the relative humidity is high, the water molecule content in the air increases, and these water molecules tend to condense on the surface of objects at night or in the morning to form water droplets or mist. Therefore, when power connection equipment in outdoor humid environments, such as electric vehicle charging stations and outdoor temporary power supply devices, encounter the above-mentioned outdoor high humidity, fog, water vapor and other harsh environmental conditions, water droplets are easily attached to the surface of the charger plug.

[0003] Existing charger plugs lack effective waterproof and moisture-proof measures, especially after the plug is inserted into the socket, it cannot effectively isolate external moisture, causing the charger plug to be easily affected by moisture. The intrusion of moisture and water vapor will cause poor contact between the connector and the socket, affecting the stability of power transmission, and may cause charging failure or low power transmission efficiency. In addition, moisture attached to the plug is likely to cause short circuits or leakage, increasing the risk of electric shock, and in severe cases may even cause fire accidents, thereby affecting the stability of power transmission and the safety of power connection.

[0004] In order to make the charger plug more suitable for outdoor humid environment, the plug needs to be safely protected. Therefore, a charger plug with an external retractable waterproof device is designed. Summary of the invention

[0005] In order to overcome the shortcoming that the existing charger plug lacks effective waterproof and moisture-proof measures, the present invention provides a charger plug with an externally attached telescopic waterproof device.

[0006] A retractable waterproof device attached to a charger plug comprises a mounting frame, the mounting frame is provided with U-shaped grooves symmetrically distributed along the mounting frame, the mounting frame is rotatably connected to a pressure frame, the mounting frame and the pressure frame are both telescopically arranged, the pressure frame is provided with U-shaped grooves symmetrically distributed along the pressure frame, a sealing film for waterproofing a connector inserted into a connecting seat is fixedly connected between the mounting frame and the pressure frame, the sealing film is elastically arranged, the wires of the connecting seat and the connector are located at the position of the sealing film close to the U-shaped groove, and a torsion spring symmetrically distributed along the mounting frame is fixedly connected between the mounting frame and the pressure frame.

[0007] Optionally, it also includes limit blocks symmetrically distributed along the mounting frame, the limit blocks are slidably connected to the mounting frame, the mounting frame is slidably connected to a first top block symmetrically distributed along the mounting frame, the first top block is extruded and matched with the adjacent limit blocks, and an elastic telescopic component is fixedly connected between the first top block and the mounting frame.

[0008] Optionally, it also includes clamping columns symmetrically distributed along the pressure frame, the clamping columns are fixedly connected to a side of the pressure frame close to the limit block, and the side of the mounting frame close to the clamping columns is movably connected to a rotating frame symmetrically distributed along the mounting frame, and the rotating frame is fixedly connected with a buckle for locking the adjacent clamping columns.

[0009] Optionally, the rotating frame is composed of a round shaft and a square shaft, the round shaft is rotatably connected to the mounting frame, and the square shaft is spline-connected to an adjacent round shaft.

[0010] Optionally, a pressure rod corresponding to the rotating frame is further included, the pressure rod is fixedly connected to the square shaft corresponding to the rotating frame, the pressure rod is pressed and matched with the adjacent limiting block, and the pressure rod is pressed and matched with the adjacent first top block.

[0011] Optionally, it also includes at least two connecting ropes, at least one of which is fixedly connected to the pressure frame, and at least one of which is fixedly connected to the mounting frame, the connecting ropes are fixedly connected with magnets distributed at equal intervals, and the magnets on the mounting frame cooperate with the corresponding magnets on the pressure frame through magnetic attraction.

[0012] Optionally, it also includes a second top block symmetrically distributed along the mounting frame, the second top block is fixedly connected to the mounting frame, the pressure frame is slidably connected to a top rod symmetrically distributed along the pressure frame, the top rod is fixedly connected to an end of the second top block close to an adjacent second top block, the moving block contacts the adjacent second top block during rotation, the side of the second top block close to the adjacent moving block is set as an arc-shaped surface for squeezing the moving block to slide to one side of an adjacent compression spring, the pressure frame is fixedly connected to an elastic shell symmetrically distributed along the pressure frame, an expansion block is placed between the elastic shell and the pressure frame, the expansion block is squeezed and matched with the adjacent top rod.

[0013] Optionally, the compression spring is symmetrically distributed along the compression frame, and two ends of the compression spring are respectively fixedly connected to the adjacent moving block and the compression frame.

[0014] Optionally, a connecting shaft is further included, which is rotatably connected to the pressure frame, and pressure ropes distributed at equal intervals are fixedly connected between the connecting shaft and the pressure frame. The pressure ropes are elastically arranged and are used to fix the connecting seat and the connecting head.

[0015] Optionally, a rotating handle is further included, and the rotating handle is fixedly connected to the connecting shaft.

[0016] The beneficial effects of the present invention are as follows: the present invention utilizes a sealing film to fully wrap the connector inserted into the connector socket, thereby effectively preventing moisture in an outdoor humid environment from affecting the safety of the power connection, and the operation is simple and convenient.

[0017] The present invention utilizes the cooperation of the pressing frame and the torsion spring. When the connector is inserted into the connecting seat, the rotation of the pressing frame and the resetting action of the torsion spring enable the connector to be firmly wrapped in the sealing film, thereby improving the stability of the protective effect and preventing the waterproof effect of the charger plug from being affected.

[0018] The mounting frame and the pressing frame of the present invention can be telescopically adjusted, and the sealing film can also be quickly unfolded and folded, so that the device is small, exquisite, does not occupy space, and is easy to store and carry.

[0019] The present invention utilizes the process that the pressure frame rotates and closes the cover under the action of the torsion spring, and needs to resist the elastic force of the elastic telescopic component, so as to achieve the effect of delaying the closing of the pressure frame, reserving time for exhaust of the sealing film, reducing the generation of bubbles, and thus enhancing the protection effect of the sealing film against the external environment (such as humidity, dust, etc.).

[0020] When the cover is closed, the clamping column is automatically locked by the buckle on the basis of the compression of the torsion spring, so that the pressing frame is firmly covered on the mounting frame, thereby further making the connector firmly wrapped in the sealing film.

[0021] The present invention utilizes the elastic telescopic component to reset and drive the first top block to move leftward, so that the left part of the pressing frame and the left part of the mounting frame are automatically opened, which is convenient for workers to put their fingers in to fully open the pressing frame.

[0022] The magnets on the pressing frame and the magnets on the mounting frame are magnetically attracted to each other, so that the upper and lower sides of the sealing film are attached more closely, thereby enhancing the sealing effect of the sealing film.

[0023] In the process of rotating and closing the cover, the present invention utilizes the contact between the moving block and the second top block, so that the expansion block can only press the elastic shell downward to bulge downward, bend the sealing film and press it tightly on the wire, thereby enhancing the sealing between the wire and the sealing film.

[0024] The present invention adjusts and rotates the turning handle so that the connecting shaft winds the pressure rope, thereby adjusting the tightness of the pressure rope on the connecting seat and the connecting head, preventing the connecting head from loosening or falling off, and enhancing the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 This is a three-dimensional structural separation diagram of the connecting socket and the connecting head of the present invention.

[0027] Figure 3It is a three-dimensional structural schematic diagram of the components such as the mounting frame, the sealing film and the pressing frame of the present invention.

[0028] Figure 4 This is a three-dimensional structural separation diagram of the sealing film, pressure frame, torsion spring and other components of the present invention.

[0029] Figure 5 It is a three-dimensional structural schematic diagram of the components such as the mounting frame, the pressing frame and the limit block of the present invention.

[0030] Figure 6 It is a three-dimensional structural schematic diagram of components such as the clamping column, the limiting block and the first top block of the present invention.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the first top block and the elastic telescopic assembly and other components of the present invention.

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the buckle, rotating frame and other components of the present invention.

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure of the mounting frame and the pressing frame of the present invention in a closed state.

[0034] Fig.10 It is a three-dimensional structural schematic diagram of the components such as the magnet, the connecting rope and the pressing frame of the present invention.

[0035] Fig.11 It is a schematic diagram of the three-dimensional structure of the second top block, the moving block, the top rod and other components of the present invention.

[0036] Fig.12 It is a schematic diagram of the three-dimensional structure of the second compression spring, the expansion block, the elastic shell and other components of the present invention.

[0037] Fig.13 It is a three-dimensional structural schematic diagram of the connecting shaft, the rotating handle and the pressing rope and other components of the present invention.

[0038] Markings in the accompanying drawings: 1: connecting seat, 11: connecting head, 12: mounting frame, 13: sealing film, 14: pressing frame, 15: torsion spring, 2: clamping column, 21: limiting block, 22: first top block, 23: elastic telescopic component, 24: buckle, 25: rotating frame, 26: pressure rod, 3: magnet, 31: connecting rope, 4: second top block, 41: moving block, 42: top rod, 43: compression spring, 44: expansion block, 45: elastic shell, 5: connecting shaft, 51: turning handle, 52: pressure rope. DETAILED DESCRIPTION

[0039] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0040] Embodiment 1: A retractable waterproof device attached to a charger plug comprises a mounting frame 12, a U-shaped groove symmetrically distributed along the front and back of the mounting frame 12 is opened in the middle of the mounting frame 12, a pressing frame 14 is rotatably connected to the top of the mounting frame 12, both the mounting frame 12 and the pressing frame 14 are telescopically arranged front and back, a U-shaped groove symmetrically distributed along the front and back of the pressing frame 14 is opened in the middle of the pressing frame 14, the U-shaped groove of the pressing frame 14 corresponds one-to-one with the U-shaped groove of the mounting frame 12, a sealing film 13 for waterproofing a connector 11 inserted into a connector seat 1 is fixedly connected between opposite sides of the mounting frame 12 and the pressing frame 14, the sealing film 13 is elastically arranged, the wires of the connector seat 1 and the connector 11 are located at the position of the sealing film 13 close to the U-shaped groove, and a torsion spring 15 symmetrically distributed along the front and back of the mounting frame 12 is fixedly connected between the mounting frame 12 and the pressing frame 14.

[0041] The mounting frame 12 and the pressing frame 14 of the device are initially in a contracted and folded state. After the connector 11 is inserted into the connecting seat 1, the front and rear sides of the mounting frame 12 and the pressing frame 14 are stretched with both hands to make the sealing film 13 stretched and flat. Then, the right side of the pressing frame 14 is pressed downward to make the left side of the pressing frame 14 rotate upward and open, and the torsion spring 15 is deformed. Then, the connector 11 inserted into the connecting seat 1 is placed in the sealing film 13 between the mounting frame 12 and the pressing frame 14, and the wires of the connecting seat 1 and the connector 11 are respectively located at the front and rear sides of the mounting frame 12. The U-shaped groove is in the shape of a wire, and then the pressing frame 14 is released. The torsion spring 15 is reset to drive the pressing frame 14 to rotate in the opposite direction to reset, so that the upper and lower sides of the sealing film 13 are close to each other. The part of the sealing film 13 close to the U-shaped groove is in contact with the wire and is deformed toward one side of the adjacent U-shaped groove due to the thickness of the wire. The upper and lower sides of the other parts of the sealing film 13 are in contact with each other. When the connector 11 needs to be unplugged, the pressing frame 14 can be opened to take away the device. After taking away the device, press the front and rear sides of the mounting frame 12 and the pressing frame 14 with both hands to fold and close the sealing film 13.

[0042] In summary, first, the present invention utilizes the sealing film 13 to fully wrap the connector 11 inserted into the connector socket 1, thereby effectively preventing moisture in an outdoor humid environment from affecting the safety of the power connection, and the operation is simple and convenient.

[0043] Secondly, the present invention utilizes the cooperation of the pressing frame 14 and the torsion spring 15. When the connector 11 is inserted into the connector seat 1, the connector 11 is firmly wrapped in the sealing film 13 through the rotation of the pressing frame 14 and the resetting action of the torsion spring 15, thereby improving the stability of the protective effect and preventing the waterproof effect of the charger plug from being affected.

[0044] Third, the mounting frame 12 and the pressing frame 14 of the present invention can be telescopically adjusted, and the sealing film 13 can also be quickly unfolded and folded, so that the device is small, exquisite, does not take up space, and is easy to store and carry.

[0045] like Figures 5 to 9 As shown, it also includes a limit block 21 symmetrically distributed along the front and back of the mounting frame 12, the limit block 21 is slidably connected to the left part of the mounting frame 12 in the up-down direction, and the mounting frame 12 is horizontally slidably connected to a first top block 22 symmetrically distributed along the front and back of the mounting frame 12 in the left-right direction. The first top block 22 is squeezed and matched with the adjacent limit block 21, and an elastic telescopic component 23 is fixedly connected between the first top block 22 and the mounting frame 12. The left side of the pressing frame 14 is fixedly connected to a card column 2 symmetrically distributed along the front and back of the pressing frame 14. The left side of the mounting frame 12 The side is movably connected with a rotating frame 25 which is symmetrically distributed along the front and back of the mounting frame 12. The rotating frame 25 is composed of a round shaft and a square shaft. The round shaft is rotatably connected to the mounting frame 12, and the square shaft is spline-connected to the adjacent round shaft. In this way, the rotating frame 25 can both rotate and slide back and forth. The square shaft of the rotating frame 25 is fixedly connected with a buckle 24 for locking the adjacent clamping column 2. The square shaft of the rotating frame 25 is fixedly connected with a pressure rod 26. The pressure rod 26 is squeezed and fitted with the adjacent limit block 21, and the pressure rod 26 is squeezed and fitted with the adjacent first top block 22.

[0046] In the process of closing the pressing frame 14, the pressing frame 14 will quickly cover the mounting frame 12 under the resetting action of the torsion spring 15, resulting in that the air between the upper and lower sides of the sealing film 13 cannot be discharged in time, so that a large number of bubbles remain in the sealing film 13, thereby weakening the protective effect of the sealing film 13 against the external environment (such as humidity, dust, etc.). By delaying the closing process of the pressing frame 14 and reserving time for exhausting the sealing film 13, the generation of bubbles can be reduced. The specific operation is as follows:

[0047] The pressing frame 14 swings until it contacts the limit block 21, causing the limit block 21 to slide downward. At this time, the limit block 21 squeezes the first top block 22 to move to the right, and the elastic telescopic component 23 is compressed. That is, in the process of the pressing frame 14 rotating to close the cover under the action of the torsion spring 15, it is necessary to resist the elastic force of the elastic telescopic component 23, thereby achieving the effect of delaying the closing of the pressing frame 14.

[0048] In the above process, when the limit block 21 slides downward, the pressure rod 26 will drive the rotating frame 25 to rotate, thereby driving the buckle 24 to rotate clockwise. When the pressure frame 14 is completely covered on the mounting frame 12, the buckle 24 just locks the card column 2. At the same time, the pressure rod 26 also swings to contact with the mounting frame 12, thereby resisting the first top block 22, limiting the first top block 22 from resetting, thereby limiting the limit block 21 from pushing the pressure frame 14 upward. In this way, when the cover is closed, the present invention, on the basis of the compression of the torsion spring 15, also automatically locks the card column 2 through the buckle 24, so that the pressure frame 14 is firmly covered on the mounting frame 12, thereby further making the connector 11 firmly wrapped in the sealing film 13.

[0049] When unlocking is required, first pull the buckle 24 horizontally to the side away from the card column 2, so that the rotating frame 25 drives the pressure rod 26 to move outward until it is no longer in contact with the limit block 21 and the first top block 22. At this time, the elastic telescopic component 23 is reset to drive the first top block 22 to move to the left, thereby squeezing the limit block 21 to slide upward, and then pushing the pressure frame 14 upward, so that the left part of the pressure frame 14 and the left part of the mounting frame 12 are automatically opened, so that the staff can put in their fingers to fully open the pressure frame 14, and finally push the buckle 24 horizontally to the side close to the card column 2, and turn the buckle 24 counterclockwise to reset the buckle 24.

[0050] like Fig.10 As shown, it also includes four connecting ropes 31, two of which are fixedly connected to the pressing frame 14, and the other two are fixedly connected to the mounting frame 12. The connecting ropes 31 are fixedly connected to five equally spaced magnets 3, and the magnets 3 on the mounting frame 12 cooperate with the corresponding magnets 3 on the pressing frame 14 through magnetic attraction.

[0051] When the pressing frame 14 is covered on the mounting frame 12 , the magnets 3 on the pressing frame 14 and the magnets 3 on the mounting frame 12 are magnetically attracted to each other, so that the upper and lower sides of the sealing film 13 are attached more closely, thereby enhancing the sealing effect of the sealing film 13 .

[0052] like Fig.11 and Fig.12 As shown, it also includes a second top block 4 symmetrically distributed along the mounting frame 12, the second top block 4 is fixedly connected to the mounting frame 12, the pressing frame 14 is slidably connected to a top rod 42 symmetrically distributed along the pressing frame 14, the right end of the top rod 42 is fixedly connected to a moving block 41, and the moving block 41 contacts with the adjacent second top block 4 during rotation, and the side of the second top block 4 close to the adjacent moving block 41 is set as an arc-shaped curved surface, which is used to squeeze the moving block 41 to slide to one side of the adjacent compression spring 43, and the U-shaped groove of the pressing frame 14 is fixedly connected to an elastic shell 45 symmetrically distributed along the pressing frame 14, an expansion block 44 is placed between the elastic shell 45 and the pressing frame 14, a certain amount of clean water is stored in the expansion block 44, the expansion block 44 is pressed and matched with the adjacent top rod 42, and the compression spring 43 symmetrically distributed along the pressing frame 14 is fixedly connected between the moving block 41 and the pressing frame 14.

[0053] When the pressing frame 14 is closed, since the contact surface of the wire contacting the sealing film 13 is a curved surface, and the contact surface of the sealing film 13 contacting the wire is a flat surface, and the contact between the curved surface and the flat surface is not as tight as that between two flat surfaces, it is easy to leave a tiny gap between the sealing film 13 and the wire, thereby affecting the integrity of the seal and possibly allowing water vapor to enter. Therefore, when the pressing frame 14 is covered on the mounting frame 12, the moving block 41, the push rod 42, the compression spring 43, the expansion block 44 and the elastic shell 45 rotate synchronously with the pressing frame 14. During the rotation process, the moving block 41 contacts the second push block 4, and the moving block 41 is squeezed by the second push block 4 to push the push rod 42 to slide along the pressing frame 14, and the compression spring 43 is compressed, so that the lateral space of the expansion block 44 storing water is compressed and the longitudinal space is expanded, and the top of the expansion block 44 is limited by the pressing frame 14. In this way, the expansion block 44 can only squeeze the elastic shell 45 downward to bulge downward, bending the sealing film 13 and pressing it tightly on the wire, thereby enhancing the sealing between the wire and the sealing film 13. When the pressing frame 14 is opened, the moving block 41 gradually separates from the second top block 4, the compression spring 43 resets and drives the moving block 41 to slide back and reset through the top rod 42, and the elastic shell 45 rebounds and pushes the expansion block 44 to reset.

[0054] like Fig.13 As shown, it also includes a connecting shaft 5, which is rotatably connected to the pressure frame 14, and four equally spaced pressure ropes 52 are fixedly connected between the connecting shaft 5 and the pressure frame 14. The pressure ropes 52 are elastically set and are used to fix the connecting seat 1 and the connecting head 11. The front end of the connecting shaft 5 is fixedly connected to a rotating handle 51. By rotating the rotating handle 51, the tightness of the pressure ropes 52 can be adjusted.

[0055] When the pressing frame 14 is closed, the pressing rope 52 is pressed on the upper side of the sealing film 13, thereby having a certain tightening effect on the connecting seat 1 and the connecting head 11, and by adjusting the rotating handle 51, the connecting shaft 5 is wound around the pressing rope 52, thereby adjusting the tightness of the pressing rope 52 on the connecting seat 1 and the connecting head 11, preventing the connecting head 11 from loosening or falling off, and enhancing the stability of the connection.

[0056] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A charger plug with a retractable waterproof device, characterized in that: The invention comprises a mounting frame (12), wherein the mounting frame (12) is provided with U-shaped grooves symmetrically distributed along the mounting frame (12), the mounting frame (12) is rotatably connected to a pressing frame (14), the mounting frame (12) and the pressing frame (14) are both telescopically arranged, the pressing frame (14) is provided with U-shaped grooves symmetrically distributed along the pressing frame (14), a sealing film (13) for waterproofing a connector (11) inserted into a connecting seat (1) is fixedly connected between the mounting frame (12) and the pressing frame (14), the sealing film (13) is elastically arranged, the wires of the connecting seat (1) and the connector (11) are located at a position of the sealing film (13) close to the U-shaped groove, and a torsion spring (15) symmetrically distributed along the mounting frame (12) is fixedly connected between the mounting frame (12) and the pressing frame (14); The device also comprises a second top block (4) symmetrically distributed along the mounting frame (12), the second top block (4) being fixedly connected to the mounting frame (12), the pressing frame (14) being slidably connected to a top rod (42) symmetrically distributed along the pressing frame (14), the top rod (42) being fixedly connected to one end thereof close to the adjacent second top block (4), the moving block (41) being in contact with the adjacent second top block (4) during rotation, the side surface of the second top block (4) close to the adjacent moving block (41) being arranged as an arc-shaped curved surface for pressing the moving block (41) to slide toward the side of the adjacent compression spring (43), the pressing frame (14) being fixedly connected to an elastic shell (45) symmetrically distributed along the pressing frame (14), an expansion block (44) being placed between the elastic shell (45) and the pressing frame (14), the expansion block (44) being pressed and matched with the adjacent top rod (42).

2. A charger plug with an external retractable waterproof device according to claim 1, characterized in that: The mounting frame (12) further comprises a limit block (21) symmetrically distributed along the mounting frame (12), the limit block (21) being slidably connected to the mounting frame (12), the mounting frame (12) being slidably connected to a first top block (22) symmetrically distributed along the mounting frame (12), the first top block (22) being extruded and matched with an adjacent limit block (21), and an elastic telescopic component (23) being fixedly connected between the first top block (22) and the mounting frame (12).

3. A charger plug with a retractable waterproof device according to claim 2, characterized in that: It also includes clamping columns (2) symmetrically distributed along the pressure frame (14), the clamping columns (2) being fixedly connected to a side of the pressure frame (14) close to the limit block (21), and a rotating frame (25) symmetrically distributed along the mounting frame (12) being movably connected to a side of the mounting frame (12) close to the clamping columns (2), the rotating frame (25) being fixedly connected to a buckle (24) for locking the adjacent clamping columns (2).

4. A charger plug with a retractable waterproof device according to claim 3, characterized in that: The rotating frame (25) is composed of a round shaft and a square shaft, the round shaft is rotatably connected to the mounting frame (12), and the square shaft is spline-connected to an adjacent round shaft.

5. A charger plug with an external retractable waterproof device according to claim 4, characterized in that: It also includes a pressure rod (26) corresponding to the rotating frame (25), the pressure rod (26) being fixedly connected to the square shaft corresponding to the rotating frame (25), the pressure rod (26) being pressed and fitted with the adjacent limiting block (21), and the pressure rod (26) being pressed and fitted with the adjacent first top block (22).

6. A charger plug with a retractable waterproof device according to claim 5, characterized in that: It also includes at least two connecting ropes (31), wherein at least one of the connecting ropes (31) is fixedly connected to the pressing frame (14), and at least one of the connecting ropes (31) is fixedly connected to the mounting frame (12), and the connecting ropes (31) are fixedly connected to magnets (3) distributed at equal intervals, and the magnets (3) on the mounting frame (12) cooperate with the corresponding magnets (3) on the pressing frame (14) through magnetic attraction.

7. A charger plug with a retractable waterproof device according to claim 6, characterized in that: It also includes compression springs (43) symmetrically distributed along the pressure frame (14), with two ends of the compression springs (43) respectively fixedly connected to the adjacent moving blocks (41) and the pressure frame (14).

8. A charger plug with an external retractable waterproof device according to claim 7, characterized in that: It also includes a connecting shaft (5), the connecting shaft (5) being rotatably connected to the pressing frame (14), and pressing ropes (52) distributed at equal intervals being fixedly connected between the connecting shaft (5) and the pressing frame (14), the pressing ropes (52) being elastically arranged and used to fix the connecting seat (1) and the connecting head (11).

9. A charger plug with an external retractable waterproof device according to claim 8, characterized in that: It also includes a rotating handle (51), wherein the rotating handle (51) is fixedly connected to the connecting shaft (5).

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