Synchronous expansion mechanism and charger mobile terminal

Abstract

This utility model provides a synchronous telescopic mechanism, including a base shell and end functional components. The synchronous telescopic mechanism further includes a telescopic return spring and a multi-stage telescopic mechanism. The multi-stage telescopic mechanism employs a multi-stage series screw-nut connection structure. The end functional components are disposed on the final stage screw-nut connection structure. Each stage of the screw-nut connection structure retracts synchronously upon manual pressure and rebounds synchronously according to the telescopic return spring. This utility model can be applied to plugs, chargers, and other 3C electronic products. For mobile terminals such as plugs and chargers, it enables multi-stage linkage telescopic movement, allowing plugs and other functional components to extend and retract quickly, resulting in a better user experience.

Description

Technical Field

[0001] This utility model relates to a synchronous telescopic mechanism and a charger mobile terminal using the synchronous telescopic mechanism. Background Technology

[0002] Most existing portable chargers (or portable plugs) have fixed plugs, posing safety hazards and being inconvenient to carry. The few retractable plugs available are all manual and cannot achieve synchronized extension and retraction, giving consumers a low-end impression. Utility Model Content

[0003] The purpose of this invention is to provide a new solution to the problems described in the background section, applicable to chargers and other 3C electronic products. It enables two or more levels of synchronous and linked extension and retraction, allowing for rapid extension and retraction of functional components such as plugs. To this end, this invention adopts the following technical solution: A synchronous telescopic mechanism, comprising a base shell and end functional components, characterized in that the synchronous telescopic mechanism further comprises a telescopic return spring and a multi-stage telescopic mechanism; the multi-stage telescopic mechanism adopts a multi-stage series screw and nut connection structure, the end functional components are disposed on the final stage screw and nut connection structure, and each stage screw and nut connection structure retracts synchronously according to hand pressure and rebounds synchronously according to the telescopic return spring.

[0004] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these further technical solutions: The screw of the first-stage screw-nut connection structure is fixedly connected to the bottom shell. The nut of the screw-nut connection structure is a lifting component. The screw of the subsequent-stage screw-nut connection structure is connected to the nut of the preceding-stage screw-nut connection structure as one unit. The nut of the final-stage screw-nut connection structure is equipped with an anti-rotation telescopic guide structure and cannot rotate but can only move back and forth along its screw.

[0005] The nut on both sides of the final stage screw nut connection structure is set as a connecting base, the end functional component is set on the connecting base, and a telescopic guide structure is set between the two sides of the connecting base and the housing of the final stage screw nut connection structure.

[0006] Each stage of the screw and nut connection structure has its own housing. When the multi-stage screw and nut connection structure retracts, the housing of the subsequent stage screw and nut connection structure can be embedded into the housing of the preceding stage screw and nut connection structure.

[0007] The housing of the first-stage screw and nut connection structure is the bottom shell. The housing of the screw and nut connection structure after the first-stage screw and nut connection structure is axially positioned and rotatably connected to the screw of this stage, and they extend and retract synchronously. The synchronous extension and retraction mechanism is provided with an extension and retraction guide structure for the housing of the screw and nut connection structure after the first-stage screw and nut connection structure so that it does not rotate during the extension and retraction movement.

[0008] The housing of the screw and nut connection structure following the first-stage screw and nut connection structure has connecting lugs on both sides, and the telescopic guide structure is provided between the connecting lugs on both sides and the housing of the preceding screw and nut connection structure.

[0009] The end functional component is a plug.

[0010] The end functional component extends outside the housing of the final stage screw and nut connection structure. The housing of the final stage screw and nut connection structure is provided with an extension hole for the end functional component, and when retracted, it can enter the housing of the final stage screw and nut structure for protection.

[0011] The telescopic return spring is located between the screw or housing of the first-stage screw-nut connection structure and the screw or housing of the final-stage screw-nut connection structure.

[0012] The housing of the final stage screw and nut connection structure has a top that cooperates with a return telescopic spring. The bottom of the housing of the final stage screw and nut connection structure is fixedly connected to a base plate. The top and base plate cooperate with the screw of the final stage screw and nut connection structure, so that the screw is locked inside the housing of the final stage screw and nut connection structure and thus axially limits the housing.

[0013] The screw has a hollow structure, and the telescopic return spring is located inside the screw.

[0014] The lower end of the screw of the post-stage screw-nut connection structure is provided with the nut of the pre-stage screw-nut connection structure, and the end functional component is integrated with the nut of the final stage nut-screw connection structure.

[0015] The pitch of the subsequent screw-nut connection structure is greater than that of the preceding screw-nut connection structure, and it extends and retracts more quickly compared to the preceding screw-nut connection structure.

[0016] The housing of the final stage nut and screw connection structure is set as a positioning boss for the European standard plug.

[0017] According to a second aspect of the present invention, the present invention also provides a technical solution employing the above-described synchronous telescopic mechanism, using the following approach: A charger mobile terminal is characterized by having the aforementioned synchronous telescopic mechanism, wherein the end functional component is a plug.

[0018] This invention can be applied to plugs, chargers, and other 3C electronic products. For mobile terminals such as plugs and chargers, it enables multi-level linkage extension and retraction, allowing functional components like plugs to extend and retract quickly, resulting in a better user experience. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the mobile terminal embodiment of the synchronous telescopic mechanism charger of this utility model when it is in the open state.

[0020] Figure 2 This is a cross-sectional view of the mobile terminal embodiment of the synchronous telescopic mechanism charger of this utility model when it is in the closed state.

[0021] Figure 3 This is an exploded view of the structure of an embodiment of the present utility model.

[0022] Figure 4 This is a structural diagram of the core components of an embodiment of this utility model.

[0023] Figure 5 This is a top view of an embodiment of the present utility model. Detailed Implementation

[0024] Referring to the accompanying drawings, the synchronous telescopic mechanism provided by this utility model includes a base shell 1, an end functional component 100, a telescopic return spring 2, and a multi-stage telescopic mechanism. The multi-stage telescopic mechanism adopts a multi-stage series screw and nut connection structure. The end functional component 100 (in this embodiment, the end functional component 100 is a plug) is disposed on the final stage screw and nut connection structure. Each stage of the screw and nut connection structure retracts synchronously according to hand pressure and rebounds synchronously according to the telescopic return spring 2.

[0025] In the multi-stage series screw-nut connection structure, the screw 31 of the first-stage screw-nut connection structure is fixedly connected to the bottom shell 1, and can be fixedly connected to the bottom shell 1 via a connecting plate 11. The connecting plate 11 is connected to the bottom end of the screw 31 by screws, and the connecting plate 11 is then bonded into the bottom shell 1 to ensure the appearance integrity of the bottom shell 1. In this embodiment, a two-stage screw-nut connection structure is provided. The screw 41 of the second-stage screw-nut connection structure is connected to the nut 32 of the first-stage screw-nut connection structure as a whole, and the nut 42 of the second-stage screw-nut connection structure is connected to the end functional component 100. The synchronous telescopic mechanism of this utility model can also realize more stages of synchronous linkage telescopic movement.

[0026] Each stage of the screw and nut connection structure has its own housing, and the housing of each stage of the screw and nut connection structure is fixedly connected to the screw of that stage. The housing of the first stage screw and nut connection structure is the bottom shell. The housing 43 of the second stage screw and nut connection structure is axially positioned and rotatably connected to the screw 42, and they extend and retract synchronously. The synchronous extension and retraction mechanism is provided with an extension and retraction guide structure for the housing of the screw and nut connection structure after the first stage screw and nut connection structure, so that it does not rotate during the extension and retraction movement. As shown in the figure, the two sides of the housing 43 are respectively connected to lugs 431, and the lugs 431 are provided with guide holes 432. The two sides of the bottom shell 1 are provided with guide rods 12, and the guide holes 430 are connected to the guide rods 12. The nut 42 of the final screw nut connection structure is equipped with an anti-rotation telescopic guide structure, so it cannot rotate but can only move back and forth along its screw 41. The anti-rotation telescopic guide structure can be that the two sides of the nut 42 are set as connecting bases 44, the end functional component 100 is set on the connecting base 44, and a telescopic guide structure 45 (such as a guide rail and a slider) is set between the two sides of the connecting base 44 and the housing 43 of the final screw nut connection structure.

[0027] In this embodiment, the pitch of the rear screw and nut connection structure is greater than that of the front screw and nut connection structure, and it extends and retracts more quickly than the front screw and nut.

[0028] When the multi-stage cascaded screw and nut connection structure retracts, the housing (housing 43) of the subsequent screw and nut connection structure can be embedded into the housing (bottom shell 1) of the preceding screw and nut connection structure. The shape of the housing 43 of the final stage screw and nut connection structure can be set as a positioning boss of a European standard plug. Thus, this positioning boss is also telescopic and can be retracted into the bottom shell 1 for protection when not in use, making it convenient to carry.

[0029] The end functional component extends out of the housing (housing 43) of the final stage screw nut connection structure. The housing (housing 43) of the final stage screw nut connection structure is provided with an extension hole 433 for the end functional component, and when retracted, it can enter the housing 43 of the final stage screw nut structure for protection.

[0030] The telescopic return spring 2 is located between the housing (bottom shell 1) of the first-stage screw and nut connection structure and the housing 41 of the final-stage screw and nut connection structure. The screws 31 and 41 are hollow structures, and the telescopic return spring 2 is located in the screws 31 and 41.

[0031] In this embodiment, the housing 43 of the final stage screw nut connection structure has a top 434, which cooperates with the return telescopic spring 2. The bottom of the housing 43 is fixedly connected to the bottom plate 435. The top 434 and the bottom plate 435 cooperate with the screw 41, so that the screw 41 is stuck inside the housing and the housing 43 is axially limited. This makes installation easier and has a more stable axial limiting effect, thus having a better effect in cooperating with the telescopic return spring 2.

[0032] The top cover 5 of the bottom shell 1 is fixedly connected to the bottom shell 1. The top cover 5 has a hole for the shell of the second-stage screw and nut connection structure to retract.

[0033] In this embodiment, the synchronous telescopic mechanism is applied to the charger mobile terminal, and the end functional component is the charger plug.

[0034] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the protection scope of the present utility model.

[0035] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "linked," and "sleeve" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, it should be understood that the terms "vertical," "upward," "external," "internal," "up and down," "bottom," "outer end," "rising," "contracting," and "expanding," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

Claims

1. A synchronous telescoping mechanism comprising a base housing and an end functional component, characterized in that, The synchronous telescopic mechanism also includes a telescopic return spring and a multi-stage telescopic mechanism; the multi-stage telescopic mechanism adopts a multi-stage series screw and nut connection structure, the end functional component is set on the final stage screw and nut connection structure, and each stage screw and nut connection structure retracts synchronously according to hand pressure and rebounds synchronously according to the telescopic return spring.

2. The synchronous expansion mechanism of claim 1, wherein, The screw of the first-stage screw-nut connection structure is fixedly connected to the bottom shell. The nut of the screw-nut connection structure is a lifting component. The screw of the subsequent-stage screw-nut connection structure is connected to the nut of the preceding-stage screw-nut connection structure as one unit. The nut of the final-stage screw-nut connection structure is equipped with an anti-rotation telescopic guide structure and cannot rotate but can only move back and forth along its screw.

3. The synchronous expansion mechanism of claim 1, wherein, The nut on both sides of the final stage screw nut connection structure is set as a connecting base, the end functional component is set on the connecting base, and a telescopic guide structure is set between the two sides of the connecting base and the housing of the final stage screw nut connection structure.

4. The synchronous expansion mechanism of claim 1, wherein, Each stage of the screw and nut connection structure has its own housing. When the multi-stage screw and nut connection structure retracts, the housing of the subsequent stage screw and nut connection structure can be embedded into the housing of the preceding stage screw and nut connection structure.

5. The synchronous expansion mechanism of claim 4, wherein, The housing of the first-stage screw and nut connection structure is the bottom shell. The housing of the screw and nut connection structure after the first-stage screw and nut connection structure is axially positioned and rotatably connected to the screw of this stage, and they extend and retract synchronously. The synchronous extension and retraction mechanism is provided with an extension and retraction guide structure for the housing of the screw and nut connection structure after the first-stage screw and nut connection structure so that it does not rotate during the extension and retraction movement.

6. The synchronous expansion mechanism of claim 5, wherein, The housing of the screw and nut connection structure following the first-stage screw and nut connection structure has connecting lugs on both sides, and the telescopic guide structure is provided between the connecting lugs on both sides and the housing of the preceding screw and nut connection structure.

7. The synchronous expansion mechanism of claim 1, wherein, The end functional component is a plug.

8. The synchronous expansion mechanism of claim 4, wherein, The end functional component extends outside the housing of the final stage screw and nut connection structure. The housing of the final stage screw and nut connection structure is provided with an extension hole for the end functional component, and when retracted, it can enter the housing of the final stage screw and nut connection structure for protection.

9. The synchronous expansion mechanism of claim 1, wherein, The telescopic return spring is located between the screw or housing of the first-stage screw-nut connection structure and the screw or housing of the final-stage screw-nut connection structure.

10. The synchronous expansion mechanism of claim 9, wherein, The housing of the final stage screw and nut connection structure has a top that cooperates with a return telescopic spring. The bottom of the housing of the final stage screw and nut connection structure is fixedly connected to a base plate. The top and base plate cooperate with the screw of the final stage screw and nut connection structure, so that the screw is locked inside the housing of the final stage screw and nut connection structure and thus axially limits the housing.

11. The synchronous expansion mechanism of claim 1, wherein, The screw has a hollow structure, and the telescopic return spring is located inside the screw.

12. The synchronous expansion mechanism of claim 1, wherein, The lower end of the screw of the post-stage screw-nut connection structure is provided with the nut of the pre-stage screw-nut connection structure, and the end functional component is integrated with the nut of the final stage nut-screw connection structure.

13. The synchronous expansion mechanism of claim 1, wherein, The pitch of the subsequent screw-nut connection structure is greater than that of the preceding screw-nut connection structure, allowing for faster extension and retraction compared to the preceding screw-nut connection structure.

14. The synchronous expansion mechanism of claim 1, wherein, The housing of the final stage nut and screw connection structure is set as a positioning boss for the European standard plug. 15.A charger mobile terminal, characterized by, The synchronous telescopic mechanism of claim 1 is provided, wherein the end functional component is a plug.

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