Multifunctional double-pull telescopic charging equipment

Abstract

The utility model provides multifunctional double-pull telescopic charging equipment, and belongs to the technical field of charging equipment. Comprising a sheath with the top and the bottom arranged in a penetrating mode, a base is installed at the bottom of the sheath, an inner box body is slidably connected into the sheath, a cavity is formed in the inner box body, a charging wire is arranged in the cavity, the two ends of the charging wire penetrate through and extend out of the cavity, plugs are installed at the two ends of the charging wire, and the plugs are connected with the base. The two opposite sides of the inner box body are each provided with a first containing groove. The inner box body, the charging wire and the plug are further protected through the sheath, the charging wire or the plug is prevented from being partially exposed outside, the plug is in a protected state under the condition that charging is not needed, the probability that the plug is polluted by the external environment or accidentally damaged by the external force is reduced, and the service life of the plug is prolonged. And the use stability and the service life of the plug are improved. And meanwhile, the multifunctional pen container is accommodated and stored in a whole, so that the multifunctional pen container is more convenient to accommodate, search, take and use, and is more convenient to store and carry.

Description

Technical Field

[0001] The utility model relates to the technical field of charging equipment, in particular to a multifunctional double-pull telescopic charging device. Background Art

[0002] In order to improve the convenience of using and storing the charging cable, the Chinese patent with authorization announcement number CN207490255U discloses a retractable charging cable for mobile phones. The device adopts a rotating retractable structure, so that the charging cable can be pulled out from the box cover for use when needed. When the charging cable needs to be stored, the charging cable can be retracted in an orderly manner, which improves the convenience of using the charging cable during long-distance charging. However, the device does not protect the structures at both ends of the charging cable. When charging is not required, the ports at both ends of the charging cable are still exposed. After long-term use, the ports are more likely to be contaminated by the external environment or accidentally damaged by external forces, affecting the stability and service life of the ports. Therefore, the present application provides a multifunctional double-pull retractable charging device to meet the needs. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a multifunctional double-pull telescopic charging device to solve the problem that the existing charging cable port with a telescopic function lacks protection when not in use.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A multifunctional double-pull telescopic charging device includes a protective cover with a top and a bottom that pass through, a base installed at the bottom of the protective cover, an inner box body slidably connected to the inner cover, a cavity provided in the inner cover, a charging cable provided in the cavity, both ends of the charging cable pass through and extend outside the cavity, plugs installed at both ends of the charging cable, a receiving groove one is provided on opposite sides of the inner cover, the plug is located in the receiving groove one, the plug is located in the protective cover, a card block one is installed at the bottom of the inner cover, and when the inner cover is completely immersed in the protective cover, the top of the inner cover closes the top opening of the protective cover.

[0006] Preferably, a winding mechanism for automatically retracting the charging cable into the cavity is installed in the cavity; an elastic limiting mechanism is installed on the base, and the elastic limiting mechanism is used to cooperate with the card block to limit the inner box body in the sheath, and the elastic limiting mechanism can also be used to push part of the inner box body out of the sheath.

[0007] Preferably, the winding mechanism includes a rotating bracket rotatably connected to the cavity, a coil spring is installed on the rotating bracket, and one end of the coil spring away from the rotating bracket is fixed to the inner wall of the cavity. The part of the charging cable located in the cavity is wound around the outer ring of the rotating bracket, and a through-portion connected to the accommodating groove is opened on opposite sides of the cavity, and the charging cable passes through the cavity and the accommodating groove through the through-portion.

[0008] Preferably, the elastic limiting mechanism includes a fixed sleeve mounted on the top of the base, a sliding sleeve slidably connected to the fixed sleeve, a spring installed in the sliding sleeve that contacts the fixed sleeve, a slot 1 for clamping the limiting clamp block 1 is installed on the fixed sleeve, the bottom of the clamp block 1 and the top of the fixed sleeve are both chamfered, the bottom of the slot 1 is inclined downward and passes through the fixed sleeve, the side of the fixed sleeve with the slot 1 is disconnected from the adjacent side by the slot 1, a spring piece is provided on the side of the sliding sleeve close to the fixed sleeve, a protrusion is provided at the position of the spring piece corresponding to the top of the slot 1, the top of the protrusion extends obliquely to the inside of the sliding sleeve, and the protrusion A limited surface is provided on one side. When the inner box body is moved out of the sheath, the protrusion contacts the inner wall of the side of the fixed sleeve where the slot is provided. When the block one is engaged with the slot one, the top of the sliding sleeve contacts the bottom of the inner box body, and the protrusion contacts the side of the block one away from the slot one. When the inner box body needs to be pushed out of the sheath, the inner box body is pressed down until the block one is guided by the oblique side of the slot one and bends to one side until it is separated from the protrusion. At this time, the protrusion contacts the inner wall of the fixed sleeve, and then the extrusion on the inner box body is released. At this time, the sliding sleeve rises under the elastic force of the spring and presses against the block one that is bent by the oblique side of the slot one through the limiting surface, so that the end of the block one is located outside the slot one during the rising process of the inner box body.

[0009] Preferably, a guiding surface is obliquely provided on the bottom of the fixing sleeve at a position where the fixing sleeve is disconnected from the adjacent side by the first clamping groove.

[0010] Preferably, a limiting block three is provided on the adjacent side of the sliding sleeve where the spring is provided, and a limiting groove is provided on the adjacent side of the fixed sleeve where the card slot one is provided. The width of the limiting block three is adapted to the width of the limiting groove, and the limiting block three is slidably connected to the limiting groove.

[0011] Preferably, two inner walls on opposite sides of the sheath are each provided with a second card slot, and a second card block engaged with the second card slot is provided on the base.

[0012] Preferably, two opposite sides of the sheath are provided with a second opening, one side of the second opening is rotatably connected to a cover plate for closing or opening the second opening, and the second opening corresponds to a position of a receiving groove on the inner box body received in the sheath.

[0013] Preferably, the inner box body is formed by splicing together half shell one and half shell two that cooperate with each other, and a pressing plate is provided on the top of half shell one or half shell two. When the inner box body is limited in the sheath by an elastic limiting mechanism, the top of the pressing plate is flush with the top of the sheath.

[0014] Preferably, one or more receiving grooves three are provided along the edge of the side of the half shell one or the half shell two that are away from each other, and the receiving groove three is used to store the card removal needle, SIM card or SD card. A limiting block two is provided in the receiving groove three for pressing the items stored in the receiving groove three, and the receiving groove three is open on the side close to the edge of the half shell one or the half shell two.

[0015] Preferably, the bottom of the half shell one and the half shell two are each provided with a plurality of receiving grooves two, the receiving grooves two are used to store conversion heads used in conjunction with the connector, the inner walls of one side of the receiving groove one and the receiving groove two are each provided with an inclined or arc-shaped taking port, and the inner walls on the opposite sides of the receiving groove two and the receiving groove one are each provided with a limiting block one, and the limiting block one limits the stored items in the receiving groove one and the receiving groove two by friction or extrusion.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above solution, a reeling mechanism is provided to store the idle charging cable within the cavity, achieving orderly storage of the charging cable. When needed, the charging cable can be withdrawn from the cavity by pulling the connector, making it convenient for use in long-distance charging environments. Furthermore, the sheath provides further protection for the inner box, charging cable, and connector, preventing the charging cable or connector from being partially exposed to the outside world. When charging is not required, the connector is protected, reducing the probability of the connector being contaminated by the external environment or accidentally damaged by external forces, thereby improving the connector's stability and service life. At the same time, the sheath stores the charging cable, inner box, adapter for connecting to the charger, associated spare card removal pin, and SIM card or SD card in a single unit, making it easier to store, find, and access, as well as easier to store and carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the inner box body in the state of being retracted into the sheath;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the inner box body being pulled out from the sheath;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the sheath without the cover plate;

[0022] Figure 4 Schematic diagram of the three-dimensional structure of the base;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the clamping block 1 when it is bent under force and cooperates with the protrusion;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure after the inner box body is removed from the second half shell;

[0025] Figure 7 It is a schematic diagram of a three-dimensional structure of a half shell;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the half shell.

[0027] [Reference Signs]

[0028] 1. Sheath; 2. Base; 3. Half shell 1; 4. Half shell 2; 5. Press plate; 6. Rotating bracket; 7. Coil spring; 8. Through port 1; 9. Charging cable; 10. Connector plug; 11. Accommodating slot 1; 12. Accommodating slot 2; 13. Accommodating slot 3; 14. Limit block 1; 15. Limit block 2; 16. Removal port; 17. Adapter; 18. Block 1; 19. Fixed sleeve; 20. Sliding sleeve; 21. Slot 1; 22. Spring; 23. Protrusion; 24. Limiting surface; 25. Limiting slot; 26. Limiting block 3; 27. Spring; 28. Slot 2; 29. ​​Block 2; 30. Through port 2; 31. Cover; 32. Inner box; 33. Guide surface.

[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0030] The following describes in detail a multifunctional dual-pull retractable charging device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0031] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0032] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0033] It will be understood that the meanings of “on,” “over,” and “above” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes being “on” something with intervening features or layers, and “on” or “over” means not only “on” or “above” something, but also includes being “on” or “above” something with no intervening features or layers.

[0034] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0035] like Figures 1-6As shown, an embodiment of the present invention provides a multifunctional double-pull retractable charging device, including a charging cable 9 that passes through and extends outside the cavity, with connectors 10 installed at both ends, and an accommodating groove 11 is provided on opposite sides of the inner box body 32. The connector 10 is located in the accommodating groove 11, and the connector 10 is located in the sheath 1. A clamping block 18 is installed at the bottom of the inner box body 32. When the inner box body 32 is completely immersed in the sheath 1, the top of the inner box body 32 closes the top opening of the sheath 1; a winding mechanism for automatically retracting the charging cable 9 into the cavity is installed in the cavity; an elastic limiting mechanism is installed on the base 2, and the elastic limiting mechanism is used to cooperate with the clamping block 18 to limit the inner box body 32 in the sheath 1, and the elastic limiting mechanism can also be used to push part of the inner box body 32 out of the sheath 1.

[0036] By setting up a winding mechanism, the idle charging cable 9 can be put into the cavity, so that the charging cable 9 can be stored in an orderly manner. When it is needed, the charging cable 9 can be pulled out of the cavity by pulling the plug 10, which is convenient for use in a long-distance charging environment. Furthermore, the sheath 1 provides further protection for the inner box body 32, the charging cable 9 and the plug 10, avoiding partial exposure of the charging cable 9 or the plug 10 to the outside world, so that when charging is not needed, the plug 10 is in a protected state, reducing the probability of the plug 10 being contaminated by the external environment or accidentally damaged by external forces, and improving the stability and service life of the plug 10.

[0037] like Figure 7 As shown, in this embodiment, the winding mechanism includes a rotating bracket 6 rotatably connected to the cavity, a coil spring 7 is installed on the rotating bracket 6, and one end of the coil spring 7 away from the rotating bracket 6 is fixed to the inner wall of the cavity. The portion of the charging cable 9 located in the cavity is wound around the outer ring of the rotating bracket 6, and a through-port 8 connected to the accommodating groove 11 is provided on opposite sides of the cavity. The charging cable 9 passes through the cavity and the accommodating groove 11 through the through-port 8, thereby improving the convenience of storage and stretching of the charging cable 9 through a simple and convenient mechanical structure.

[0038] like Figure 4-Figure 6As shown, in this embodiment, the elastic limiting mechanism includes a fixed sleeve 19 installed on the top of the base 2, a sliding sleeve 20 is slidably connected in the fixed sleeve 19, a spring 27 is installed in the sliding sleeve 20 to interfere with the fixed sleeve 19, and a card slot 21 for clamping the limiting card block 18 is installed on the fixed sleeve 19. The bottom of the card block 18 and the top of the fixed sleeve 19 are both chamfered, and the bottom of the card slot 21 is inclined downward and passes through the fixed sleeve 19. The side of the fixed sleeve 19 with the card slot 21 is disconnected from the adjacent side by the card slot 21, and the sliding A spring piece 22 is provided on the side of the sleeve 20 close to the fixed sleeve 19, and a protrusion 23 is provided at the position of the spring piece 22 corresponding to the top of the card slot 21. The top of the protrusion 23 extends obliquely to the inside of the sliding sleeve 20, and a limited position surface 24 is provided on one side of the protrusion 23. When the inner box body 32 is moved out of the sheath 1, the protrusion 23 contacts the inner wall of the side of the fixed sleeve 19 where the card slot 21 is provided. When the clamping block 18 is engaged with the card slot 21, the top of the sliding sleeve 20 contacts the bottom of the inner box body 32, and the protrusion 23 contacts the side of the clamping block 18 away from the card slot 21.

[0039] When the inner box body 32 is inserted into the sheath 1, the bottom of the inner box body 32 can be aligned with the opening at the top of the sheath 1 and pushed in. During this process, the inner box body 32 slides along the inner wall of the sheath 1 toward the bottom of the sheath 1. The inner box body 32 that continues to go deeper collides with the top of the sliding sleeve 20. The block 18 squeezes the protrusion 23 under the guidance of the chamfered top of the fixed sleeve 19 to make the spring piece 22 bend into the sliding sleeve 20. When the block 18 is engaged with the slot 1 21, the protrusion 23 is reset and collides with the block 18, thereby realizing the storage of the inner box body 32 in the sheath 1.

[0040] When the inner box body 32 needs to be pushed out from the sheath 1, the inner box body 32 is pressed down until the block 18 is bent to one side under the guidance of the oblique edge of the card slot 21 until it is separated from the protrusion 23, and the engagement state between the block 18 and the card slot 21 is released. At this time, the protrusion 23 contacts the inner wall of the fixed sleeve 19, and then the squeeze on the inner box body 32 is released. At this time, the sliding sleeve 20 rises under the elastic force of the spring 27 and bends by the limit surface 24 against the oblique edge of the card slot 21. The card block 18 is formed on the inner box body 32, so that the end of the card block 18 is located outside the card groove 21 during the rising process of the inner box body 32. As the sliding sleeve 20 continues to rise under the elastic force of the spring 27, the inner box body 32 drives the card block 18 to rise along the disconnection on the adjacent side of the fixed sleeve 19 where the card groove 21 is provided, thereby achieving the effect of limiting or releasing the limit of the inner box body 32 when pressing the inner box body 32 with different forces in the same operation. The structure is ingenious and the convenience of extracting the inner box body 32 is improved.

[0041] Furthermore, a plug-in slot with a depth greater than the length of the card block 18 is opened at the bottom of the inner box body 32. The card block 18 is located in the plug-in slot, which reduces the probability of the card block 18 contacting the external environment when the inner box body 32 is completely pulled out of the sheath 1, thereby ensuring the safety of the card block 18 and reducing the probability of the card block 18 being damaged by force.

[0042] like Figure 5 As shown, in this embodiment, the fixing sleeve 19 is provided with a guide surface 33 at an angle at the bottom where the fixing sleeve 19 is disconnected from the adjacent side by the card slot 1 21. The advantage of such a setting is that when the card block 18 conflicts with the limit surface 24, the sliding sleeve 20 can guide the end of the card block 18 through the guide surface 33 during the process of driving the inner box body 32 to rise under the elastic force of the spring 27, thereby improving the smoothness of the inner box body 32 being pushed out of the sheath 1.

[0043] like Figure 4 As shown, in this embodiment, a limiting block three 26 is provided on the adjacent side of the sliding sleeve 20 where the spring piece 22 is provided, and a limiting groove 25 is provided on the adjacent side of the fixed sleeve 19 where the card slot one 21 is provided. The width of the limiting block three 26 is adapted to the width of the limiting groove 25, and the limiting block three 26 is slidably connected to the limiting groove 25. The advantage of such a setting is that the assembly convenience of the sliding sleeve 20 and the fixed sleeve 19 is improved.

[0044] like Figure 3 and Figure 4 As shown, in this embodiment, a second card slot 28 is provided on the inner walls on both sides of the opposite sides of the sheath 1, and a second card block 29 is provided on the base 2 to engage with the second card slot 28. The advantage of this arrangement is that the base 2 can be quickly installed with the sheath 1 through the engagement between the second card slot 28 and the second card block 29.

[0045] like Figure 1-Figure 3 As shown, in this embodiment, a second opening 30 is provided on both opposite sides of the sheath 1, and a cover plate 31 for closing or opening the second opening 30 is rotatably connected to one side of the second opening 30. The cover plate 31 can achieve the closure of the second opening 30 by magnetically connecting to the side opposite to the rotating side of the second opening 30. The second opening 30 corresponds to the position of the receiving groove 11 on the inner box body 32 received in the sheath 1. The advantage of this arrangement is that when the plug 10 is needed for charging, the cover plate 31 can be opened and the plug 10 can be taken out without pulling the inner box body 32 out of the sheath 1, thereby improving the convenience of using the plug 10 and the charging cable 9.

[0046] like Figure 1 and Figure 2As shown, in this embodiment, the inner box body 32 is formed by splicing together half shell 1 3 and half shell 2 4 that cooperate with each other, and a pressing plate 5 is provided on the top of half shell 1 3 or half shell 2 4. When the inner box body 32 is limited in the sheath 1 by the elastic limiting mechanism, the top of the pressing plate 5 is flush with the top of the sheath 1. The advantage of this arrangement is that it reduces the probability of the inner box body 32 being accidentally touched and improves the overall aesthetics of the device.

[0047] like Figure 8 As shown, in this embodiment, one or more receiving grooves three 13 are provided along the edge of the side away from each other of the half shell 1 3 or the half shell 2 4. The receiving groove three 13 is used to store the card removal needle, SIM card or SD card. A limit block two 15 is provided in the receiving groove three 13 for pressing the items stored in the receiving groove three 13. The receiving groove three 13 is open on one side close to the edge of the half shell 1 3 or the half shell 2 4. The advantage of this arrangement is that when the card removal needle, SIM card or SD card needs to be taken out, the inner box body 32 is taken out from the sheath 1, and the target object to be taken out can be slid toward the edge of the half shell 1 3 or the half shell 2 4 to achieve access. It is simple and convenient, improves the utilization efficiency of the space in the sheath 1, and at the same time realizes the protection of the card removal needle, SIM card and SD, and reduces the probability of their contact with the external environment when idle.

[0048] like Figure 7 As shown, in this embodiment, the bottom of the half shell 1 3 and the half shell 2 4 are provided with a plurality of receiving grooves 2 12, and the receiving groove 2 12 is used to store the conversion head 17 used in conjunction with the plug 10. The advantage of this arrangement is that by replacing different types of conversion heads 17, the device can be adapted to charging devices with different interfaces, thereby improving the scope of application of the device. The inner wall of one side of the receiving groove 11 and the receiving groove 2 12 is provided with an inclined or arc-shaped access port 16. The advantage of this arrangement is that the access convenience of the plug 10 and the conversion head 17 is improved. Further, the access port 16 can also be set at At the port positions of the connector 10 and the conversion head 17, force points for taking out the connector 10 or the conversion head 17 are increased, thereby improving the convenience of taking out the connector 10 and the conversion head 17. Limit blocks 14 are provided on the inner walls of the opposite sides of the accommodating groove 2 12 and the accommodating groove 1 11. The limit blocks 14 limit the stored items in the accommodating groove 1 11 and the accommodating groove 2 12 by friction or compression, thereby preventing the connector 10 and the conversion head 17 from directly falling out of the accommodating groove 1 11 and the accommodating groove 2 12 when the half shell 1 3 and the half shell 2 4 are pulled out of the sheath 1, thereby ensuring the limiting stability of the connector 10 and the conversion head 17.

[0049] The technical solution provided by the present invention utilizes a reeling mechanism to store the idle charging cable 9 within the cavity, achieving orderly storage of the charging cable 9. When needed, the charging cable 9 can be withdrawn from the cavity by pulling the connector 10, facilitating use in long-distance charging environments. Furthermore, the protective sheath 1 provides further protection for the inner case 32, the charging cable 9, and the connector 10, preventing any exposure to the outside world. When charging is not required, the connector 10 remains protected, reducing the likelihood of contamination or damage from external forces, and improving the stability and service life of the connector 10. Furthermore, the protective sheath 1 integrates the charging cable 9, the inner case 32, the adapter 17 for connecting to the charging port, the associated spare card removal pin, and the SIM card or SD card into a single unit, making it easier to store, find, and access, as well as to store and carry.

[0050] When the inner box body 32 is inserted into the sheath 1, the bottom of the inner box body 32 can be aligned with the opening at the top of the sheath 1 and pushed in. During this process, the inner box body 32 slides along the inner wall of the sheath 1 toward the bottom of the sheath 1. The inner box body 32 that continues to go deeper collides with the top of the sliding sleeve 20. The block 18 squeezes the protrusion 23 under the guidance of the chamfered top of the fixed sleeve 19 to make the spring piece 22 bend into the sliding sleeve 20. When the block 18 is engaged with the slot 1 21, the protrusion 23 is reset and collides with the block 18, thereby realizing the storage of the inner box body 32 in the sheath 1.

[0051] When the inner box body 32 needs to be pushed out from the sheath 1, the inner box body 32 is pressed down until the block 18 is bent to one side under the guidance of the oblique edge of the card slot 21 until it is separated from the protrusion 23, and the engagement state between the block 18 and the card slot 21 is released. At this time, the protrusion 23 contacts the inner wall of the fixed sleeve 19, and then the squeeze on the inner box body 32 is released. At this time, the sliding sleeve 20 rises under the elastic force of the spring 27 and bends by the limit surface 24 against the oblique edge of the card slot 21. The card block 18 is formed on the inner box body 32, so that the end of the card block 18 is located outside the card groove 21 during the rising process of the inner box body 32. As the sliding sleeve 20 continues to rise under the elastic force of the spring 27, the inner box body 32 drives the card block 18 to rise along the disconnection on the adjacent side of the fixed sleeve 19 where the card groove 21 is provided, thereby achieving the effect of limiting or releasing the limit of the inner box body 32 when pressing the inner box body 32 with different forces in the same operation. The structure is ingenious and the convenience of extracting the inner box body 32 is improved.

[0052] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A multifunctional double-pull telescopic charging device, characterized in that: include: A sheath (1) is provided with a through-hole at the top and bottom, a base (2) is installed at the bottom of the sheath (1), an inner box body (32) is slidably connected in the sheath (1), a cavity is provided in the inner box body (32), a charging line (9) is provided in the cavity, both ends of the charging line (9) pass through and extend outside the cavity, and both ends of the charging line (9) are installed with a connector (10), an accommodating groove (11) is provided on opposite sides of the inner box body (32), the connector (10) is located in the accommodating groove (11), the connector (10) is located in the sheath (1), a card block (18) is installed at the bottom of the inner box body (32), and when the inner box body (32) is completely immersed in the sheath (1), the top of the inner box body (32) closes the top opening of the sheath (1); A reeling mechanism for automatically retracting the charging cable (9) into the cavity is installed in the cavity; An elastic limiting mechanism is installed on the base (2), and the elastic limiting mechanism is used to cooperate with the clamping block (18) to limit the inner box body (32) in the sheath (1). The elastic limiting mechanism can also be used to push part of the inner box body (32) out of the sheath (1).

2. The multifunctional double-pull telescopic charging device according to claim 1, characterized in that: The winding mechanism includes a rotating bracket (6) rotatably connected to the cavity, a coil spring (7) is installed on the rotating bracket (6), and one end of the coil spring (7) away from the rotating bracket (6) is fixed to the inner wall of the cavity. The portion of the charging line (9) located in the cavity is wound around the outer ring of the rotating bracket (6), and a through-port (8) connected to the accommodating groove (11) is provided on opposite sides of the cavity. The charging line (9) passes through the cavity and the accommodating groove (11) through the through-port (8).

3. The multifunctional double-pull telescopic charging device according to claim 1, characterized in that: The elastic limiting mechanism comprises a fixed sleeve (19) mounted on the top of the base (2), a sliding sleeve (20) is slidably connected in the fixed sleeve (19), a spring (27) is mounted in the sliding sleeve (20) and contacts the fixed sleeve (19), a card slot (21) for engaging a limit card block (18) is mounted on the fixed sleeve (19), the bottom of the card block (18) and the top of the fixed sleeve (19) are both chamfered, and the bottom of the card slot (21) is The fixed sleeve (19) is obliquely downward and penetrates the fixed sleeve (19), and the side of the fixed sleeve (19) provided with the card slot (21) is disconnected from the adjacent side by the card slot (21). The sliding sleeve (20) is provided with a spring piece (22) on the side close to the fixed sleeve (19), and the spring piece (22) is provided with a protrusion (23) at a position corresponding to the top of the card slot (21). The top of the protrusion (23) extends obliquely to the inside of the sliding sleeve (20), and a limited surface (23) is provided on one side of the protrusion (23). 4), when the inner box body (32) is removed from the protective sleeve (1), the protrusion (23) contacts the inner wall of the fixed sleeve (19) on the side where the card slot 1 (21) is opened. When the card block 1 (18) is engaged with the card slot 1 (21), the top of the sliding sleeve (20) contacts the bottom of the inner box body (32), and the protrusion (23) contacts the side of the card block 1 (18) away from the card slot 1 (21). When the inner box body (32) needs to be pushed out of the protective sleeve (1), the inner box body (32) is pressed down to the card block 1 (1 8) Under the guidance of the oblique edge of the card slot (21), it bends to one side until it is separated from the protrusion (23). At this time, the protrusion (23) contacts the inner wall of the fixed sleeve (19), and then releases the squeeze on the inner box body (32). At this time, the sliding sleeve (20) rises under the elastic force of the spring (27) and presses against the card block (18) that is bent by the oblique edge of the card slot (21) through the limiting surface (24), so that the end of the card block (18) is located outside the card slot (21) during the rising process of the inner box body (32).

4. The multifunctional double-pull telescopic charging device according to claim 3, characterized in that: A guide surface (33) is provided at an angle on the bottom of the fixing sleeve (19) at a position where the fixing sleeve (19) is disconnected from the adjacent side by the first clamping groove (21).

5. The multifunctional double-pull telescopic charging device according to claim 3, characterized in that: The sliding sleeve (20) is provided with a limiting block three (26) on an adjacent side of the spring piece (22), and the fixed sleeve (19) is provided with a limiting groove (25) on an adjacent side of the clamping groove one (21). The width of the limiting block three (26) is adapted to the width of the limiting groove (25), and the limiting block three (26) is slidably connected to the limiting groove (25).

6. The multifunctional double-pull telescopic charging device according to claim 1, characterized in that: Two inner walls on opposite sides of the sheath (1) are provided with second card slots (28), and the base (2) is provided with a second card block (29) that engages with the second card slots (28).

7. The multifunctional double-pull telescopic charging device according to claim 1, characterized in that: Two openings (30) are provided on opposite sides of the sheath (1), and a cover plate (31) for closing or opening the second opening (30) is rotatably connected to one side of the second opening (30), and the second opening (30) corresponds to the position of the first receiving groove (11) on the inner box body (32) received in the sheath (1).

8. The multifunctional double-pull telescopic charging device according to claim 1, characterized in that: The inner box body (32) is formed by splicing together a half shell (3) and a half shell (4) that cooperate with each other. A pressing plate (5) is provided on the top of the half shell (3) or the half shell (4). When the inner box body (32) is limited in the protective sleeve (1) by an elastic limiting mechanism, the top of the pressing plate (5) is flush with the top of the protective sleeve (1).

9. The multifunctional double-pull telescopic charging device according to claim 8, characterized in that: One or more receiving slots three (13) are provided along the edge of the side of the half shell one (3) or the half shell two (4) away from each other. The receiving slot three (13) is used to store a card removal needle, a SIM card or an SD card. A limiting block two (15) is provided in the receiving slot three (13) for pressing the items stored in the receiving slot three (13). The receiving slot three (13) is open on one side close to the edge of the half shell one (3) or the half shell two (4).

10. The multifunctional double-pull telescopic charging device according to claim 8, characterized in that: The bottoms of the half shells 1 (3) and 2 (4) are provided with a plurality of receiving slots 2 (12), the receiving slots 2 (12) being used to store conversion heads (17) used in conjunction with the connector (10), the inner walls of one side of the receiving slots 1 (11) and 2 (12) are provided with inclined or arc-shaped access openings (16), the inner walls of the opposite sides of the receiving slots 2 (12) and 1 (11) are provided with limiting blocks 1 (14), the limiting blocks 1 (14) limiting the stored items in the receiving slots 1 (11) and 2 (12) by friction or compression.

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