Telescopic USB flash disk

Abstract

The utility model provides a telescopic USB (Universal Serial Bus) flash disk, which relates to the technical field of removable storage equipment and comprises a shell structure, a push button, a printed circuit board structure and a rotary bracket, and one end of the shell structure is provided with a push-out port communicated with an accommodating space; one end of the printed circuit board structure is in sliding connection with the shell structure, the other end of the printed circuit board structure is provided with a USB connector, and the printed circuit board structure is provided with a sliding groove; the rotary support is rotatably connected with the shell structure, one end of the rotary support is slidably connected with the chute, and the other end is connected with the push button; the push button is in sliding connection with the shell structure and used for driving the rotary support to rotate relative to the shell structure, and then the rotary support drives the printed circuit board structure to slide so that the USB connector can stretch out of or retract into the push-out opening. According to the utility model, the technical problems that the USB flash disk is damaged and the service life of the USB flash disk is shortened due to collision of the USB connector due to lack of protection on the USB connector in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of removable storage devices, in particular to a retractable U disk. Background Art

[0002] Among existing removable storage devices, the most common is the USB flash drive. A USB flash drive, or "USB flash disk," is a miniature, high-capacity mobile storage device that uses a USB connector and doesn't require a physical drive. It connects to a computer via the USB connector for plug-and-play operation. USB flash drives typically use ABS plastic or metal casings and contain a small printed circuit board, making them compact and easy to use and carry.

[0003] However, the protruding USB connector is easily bumped during use, especially after the USB drive is dropped and bumped, which can cause damage to the USB drive. To prevent the USB connector from being bumped, existing USB drives usually use a cap to protect the connector. However, even with the cap, it is easy for the cap to be lost, leaving the connector directly exposed, prone to dust ingress and damage, which can affect the performance of the USB drive and even cause internal data loss or shorten its service life. Utility Model Content

[0004] The purpose of the utility model is to provide a retractable USB flash drive to alleviate the technical problem in the prior art that the USB flash drive is damaged and its service life is shortened due to collisions caused by lack of protection for the USB connector.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a retractable USB flash drive, comprising a housing structure, a push button, a printed circuit board structure, and a rotating bracket. The housing structure is provided with a storage space, and one end of the housing structure is provided with a release port communicating with the storage space.

[0007] The printed circuit board structure is arranged in the accommodating space, and one end of the printed circuit board structure is slidably connected to the housing structure, and the other end is provided with a USB connector, and the printed circuit board structure is provided with a sliding groove;

[0008] The rotating bracket is rotatably connected to the housing structure, and one end of the rotating bracket is slidably connected to the slide groove, and the other end is connected to the push button;

[0009] The push button is slidably connected to the shell structure, and the push button is used to drive the rotating bracket to rotate relative to the shell structure, and then drive the printed circuit board structure to slide through the rotating bracket, so that the USB connector extends or retracts from the ejection port.

[0010] Furthermore, the printed circuit board structure includes a printed circuit board assembly and a middle frame, one end of the printed circuit board assembly is slidably connected to the housing structure through the middle frame, and the other end of the printed circuit board assembly is provided with the USB connector;

[0011] The middle frame is provided with the sliding groove, and one end of the sliding groove is set as a first groove position, and the other end is set as a second groove position;

[0012] The rotating bracket is used to slide from the second groove position to the first groove position to drive the USB connector of the printed circuit board structure to extend out from the ejection port.

[0013] Furthermore, the middle frame is slidably connected to the housing structure via a slider, and one end of the middle frame away from the printed circuit board assembly is connected to the housing structure via an elastic member;

[0014] The elastic member is used to drive the middle frame to move in a direction away from the ejection port when the rotating bracket is disengaged from the first groove position, so that the USB connector is retracted into the housing structure.

[0015] Furthermore, the shell structure includes an upper shell, a lower shell and a side shell, the upper shell cover is arranged on the lower shell, and the upper shell and the lower shell are connected through the side shell, and the accommodating space is enclosed between the upper shell and the lower shell, and the ejection port is formed between the upper shell and the lower shell.

[0016] Furthermore, the upper shell is provided with a sliding groove, and a push button is slidably provided in the sliding groove.

[0017] Furthermore, a window is provided in the sliding groove, and a fixing member is provided in the sliding groove;

[0018] The fixing member is provided with a connecting hole, and the fixing member is rotatably connected to the rotating bracket through the connecting hole;

[0019] The rotating bracket is arranged in the window.

[0020] Furthermore, a buckle is provided on a side of the upper shell facing away from the sliding slot, and the upper shell is used to be connected to the printed circuit board structure through the buckle.

[0021] Furthermore, a connecting column is provided at one end of the upper shell away from the ejection port, and the connecting column is connected to one end of the elastic member away from the middle frame.

[0022] Furthermore, one end of the rotating bracket is provided with a top boss, the other end is provided with a raised portion, and the raised portion is provided with an end boss;

[0023] The top boss is slidably arranged in the slide groove;

[0024] The rotating bracket is provided with a rotating column rotatably connected to the shell structure.

[0025] Furthermore, the push button is provided with a first protruding piece and a second protruding piece;

[0026] The first protrusion is used to push the end boss and drive the rotating bracket to rotate relative to the housing structure, so that the USB connector of the printed circuit board structure extends out;

[0027] The second protrusion is used to drive the rotating bracket to rotate relative to the housing structure, so as to retract the USB connector of the printed circuit board structure.

[0028] The utility model can achieve the following beneficial effects:

[0029] In the first aspect, the utility model provides a retractable USB flash drive, including a shell structure, a push button, a printed circuit board structure and a rotating bracket, wherein a accommodating space is provided in the shell structure, and a push-out port connected to the accommodating space is opened at one end of the shell structure; the printed circuit board structure is arranged in the accommodating space, and one end of the printed circuit board structure is slidably connected to the shell structure, and the other end is provided with a USB connector, and the printed circuit board structure is opened with a slide groove; the rotating bracket is rotatably connected to the shell structure, and one end of the rotating bracket is slidably connected to the slide groove, and the other end is connected to the push button; the push button is slidably connected to the shell structure, and the push button is used to drive the rotating bracket to rotate relative to the shell structure, and then drive the printed circuit board structure to slide through the rotating bracket, so that the USB connector extends or retracts from the push-out port.

[0030] In the present invention, a housing structure is provided with a housing space, and an ejection port is provided at one end of the housing structure, the ejection port being connected to the housing space. The housing space is used to accommodate a printed circuit board structure. The printed circuit board structure includes a circuit board and a USB connector. In the stored state, the printed circuit board structure is completely housed within the housing space; in the use state, the USB connector of the printed circuit board structure extends from the housing structure for connection to an external device. The printed circuit board structure is connected to a push button via a rotating bracket, which is in turn slidably connected to the housing structure. Since the middle portion of the rod-shaped rotating bracket is rotationally connected to the housing structure, the push button pushes one end of the rotating bracket backward, while the other end of the rotating bracket drives the printed circuit board structure forward, thereby achieving movement of the printed circuit board structure relative to the housing structure via the push button.

[0031] Compared with the prior art, the retractable USB flash drive provided by the present invention arranges a printed circuit board structure in the accommodating space of the shell structure, and connects one end of a lever-shaped rotating bracket to the printed circuit board structure and the other end to the push button, so as to realize the movement of the printed circuit board structure relative to the shell structure by pushing and pulling the push button and through the lever principle of the rotating bracket.

[0032] In summary, the present invention at least alleviates the technical problem in the prior art that the USB connector is lacking in protection, causing the USB connector to be bumped, thereby causing damage to the USB flash drive and shortening its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of the three-dimensional structure of the retractable USB flash drive provided by an embodiment of the present invention in a stored state, viewed from a top angle;

[0035] Figure 2 A schematic diagram of the three-dimensional structure of the retractable USB flash drive provided by an embodiment of the present invention in the retracted state when viewed from above;

[0036] Figure 3 A schematic diagram of the three-dimensional structure of the retractable USB flash drive provided by an embodiment of the present utility model in use;

[0037] Figure 4 A schematic diagram of the exploded structure of a retractable USB flash drive provided by an embodiment of the present utility model;

[0038] Figure 5 A schematic diagram of the outer side of the upper shell of the retractable USB flash drive provided by an embodiment of the present utility model;

[0039] Figure 6 A schematic diagram of the inner side of the upper shell of the retractable USB flash drive provided by an embodiment of the present invention;

[0040] Figure 7 A schematic diagram of the three-dimensional structure of a rotating bracket of a retractable USB flash drive provided by an embodiment of the utility model;

[0041] Figure 8 A schematic diagram of the inner side of the middle frame of the retractable USB flash drive provided by an embodiment of the present utility model;

[0042] Figure 9 A schematic diagram of the outer side of the middle frame of the retractable USB flash drive provided by an embodiment of the present utility model;

[0043] Figure 10 A schematic structural diagram of the push button portion of a retractable USB flash drive provided by an embodiment of the present utility model;

[0044] Figure 11 A schematic structural diagram of the printed circuit board portion of a retractable USB flash drive provided by an embodiment of the present utility model;

[0045] Figure 12 A schematic diagram of the internal structure of the retractable USB flash drive provided by an embodiment of the present utility model when in use;

[0046] Figure 13 A schematic top view of the interior of a retractable USB flash drive in a retracted state provided by an embodiment of the present invention;

[0047] Figure 14 This is a schematic top view of the interior of the retractable USB flash drive provided by an embodiment of the utility model when in use.

[0048] Icons: 1-upper shell; 11-sliding groove; 111-window; 12-fixing part; 13-clip; 14-connecting column; 2-lower shell; 3-side shell; 4-push button; 41-first protrusion; 42-second protrusion; 5-printed circuit board assembly; 6-middle frame; 61-slider; 62-hook; 63-sliding groove; 631-first groove position; 632-second groove position; 7-elastic part; 8-rotating bracket; 81-rotating column; 82-top boss; 83-end boss; 84-protrusion. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0052] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0054] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0055] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0056] Example 1

[0057] This embodiment provides a retractable USB flash drive. Figure 1 、 Figure 3 and Figure 4 The retractable USB flash drive includes a shell structure, a push button 4, a printed circuit board structure and a rotating bracket 8. The shell structure is provided with a accommodating space, and one end of the shell structure is provided with an ejection port connected to the accommodating space; the printed circuit board structure is arranged in the accommodating space, and one end of the printed circuit board structure is slidably connected to the shell structure, and the other end is provided with a USB connector, and the printed circuit board structure is provided with a slide groove 63; the rotating bracket 8 is rotatably connected to the shell structure, and one end of the rotating bracket 8 is slidably connected to the slide groove 63, and the other end is connected to the push button 4; the push button 4 is slidably connected to the shell structure, and the push button 4 is used to drive the rotating bracket 8 to rotate relative to the shell structure, and then drive the printed circuit board structure to slide through the rotating bracket 8, so that the USB connector extends or retracts from the ejection port.

[0058] The embodiments of the present invention at least alleviate the technical problem in the prior art that the USB connector is not well protected, causing the USB connector to be bumped, thereby damaging the USB flash drive and shortening its service life.

[0059] In an embodiment of the present invention, a housing space is defined within the housing structure, and an ejection port is defined at one end of the housing structure. This ejection port is connected to the housing space, and the housing space is used to house a printed circuit board structure. The printed circuit board structure includes a circuit board and a USB connector. In the stored state, the printed circuit board structure is completely contained within the housing space; in the use state, the USB connector of the printed circuit board structure extends from the housing structure for connection to an external device. The printed circuit board structure is connected to the push button 4 via a rotating bracket 8, which is in turn slidably connected to the housing structure. Since the middle portion of the rod-shaped rotating bracket 8 is rotationally connected to the housing structure, the push button 4 pushes one end of the rotating bracket 8 backward, and the other end of the rotating bracket 8 drives the printed circuit board structure forward during rotation, thereby achieving the effect of driving the printed circuit board structure relative to the housing structure via the push button 4.

[0060] Compared with the prior art, the retractable USB flash drive provided in the embodiment of the present invention sets a printed circuit board structure in the accommodating space of the shell structure, and connects one end of the lever-shaped rotating bracket 8 to the printed circuit board structure and the other end to the push button 4, so as to realize the movement of the printed circuit board structure relative to the shell structure by pushing and pulling the push button 4 and the lever principle of the rotating bracket 8.

[0061] In an optional implementation manner of this embodiment, refer to Figure 4 、 Figure 8 、 Figure 9 and Figure 11 The printed circuit board structure includes a printed circuit board assembly 5 and a middle frame 6. One end of the printed circuit board assembly 5 is slidably connected to the shell structure through the middle frame 6, and the other end of the printed circuit board assembly 5 is provided with a USB connector; the middle frame 6 is provided with a slide groove 63, and one end of the slide groove 63 is set as a first groove position 631, and the other end is set as a second groove position 632; the rotating bracket 8 is used to slide from the second groove position 632 to the first groove position 631 to drive the USB connector of the printed circuit board structure to extend from the ejection port.

[0062] Specifically: the printed circuit board structure includes a printed circuit board assembly 5 and a middle frame 6 that are connected to each other, wherein the printed circuit board assembly 5 includes a printed circuit board and a USB connector connected thereto, and the printed circuit board portion is connected to the middle frame 6; and the middle frame 6 is provided with a slide groove 63, which is connected to one end of the rotating bracket 8, and the two ends of the slide groove 63 are respectively set as a first groove position 631 and a second groove position 632. When in use, the rotating bracket 8 reciprocates between the first groove position 631 and the second groove position 632 to change the position of the end of the rotating bracket 8 relative to the shell structure, thereby driving the printed circuit board structure to move relative to the shell structure.

[0063] Further, refer to Figure 8 or Figure 9 The middle frame 6 is slidably connected to the shell structure through the slider 61, and the end of the middle frame 6 away from the printed circuit board assembly 5 is connected to the shell structure through the elastic member 7; the elastic member 7 is used to drive the middle frame 6 to move away from the ejection port when the rotating bracket 8 disengages from the first groove position 631, so that the USB connector is retracted into the shell structure.

[0064] Specifically: sliders 61 are symmetrically provided on both sides of the middle frame 6, and the middle frame 6 is slidably connected to the shell structure through the sliders 61 on both sides, so that the middle frame 6 can move back and forth along the extension direction of the shell structure; and the elastic member 7 connected to the shell structure is used to drive the middle frame 6 to move away from the ejection port through its own elastic force when the rotating bracket 8 disengages from the first groove position 631, so that the USB connector is retracted into the shell structure, and the elastic member 7 is preferably a spring.

[0065] Further, refer to Figure 1 、 Figure 2 or Figure 4 The shell structure includes an upper shell 1, a lower shell 2 and a side shell 3. The upper shell 1 is covered on the lower shell 2, and the upper shell 1 and the lower shell 2 are connected by the side shell 3. An accommodating space is enclosed between the upper shell 1 and the lower shell 2, and an ejection port is formed between the upper shell 1 and the lower shell 2.

[0066] Specifically: the upper shell 1 and the lower shell 2 are of the same size, and the upper shell 1 is covered on the lower shell 2, and the upper shell 1 and the lower shell 2 are connected on both sides by side shells 3. Preferably, the side shell 3 is provided with a clamping part, and the upper shell 1 and the lower shell 2 are provided with a clamping position for fixing the side shell 3 to the upper shell 1 and the lower shell 2 respectively. After the upper shell 1 and the lower shell 2 are connected, an accommodating space is formed inside the two for accommodating the printed circuit board structure.

[0067] Further, refer to Figure 5 The upper shell 1 is provided with a sliding groove 11, and a push button 4 is slidably provided in the sliding groove 11.

[0068] Specifically, a sliding groove 11 is provided on the upper surface of the upper shell, and the sliding groove 11 is slidably connected to the push button 4. Preferably, an indicator arrow can be provided in the sliding groove 11 to facilitate the user to judge the pushing direction of the push button 4.

[0069] Further, refer to Figure 13 or Figure 14 A window 111 is provided in the sliding groove 11 , and a fixing member 12 is provided in the sliding groove 11 ; the fixing member 12 has a connecting hole, and the fixing member 12 is rotatably connected to the rotating bracket 8 through the connecting hole; the rotating bracket 8 is provided in the window 111 .

[0070] Specifically: a window 111 is opened in the sliding groove 11, and the window 111 is used to connect the accommodating space with the outside, so that the middle frame 6 located in the accommodating space and the push button 4 located outside the accommodating space can be connected through the rotating bracket 8 provided in this window 111.

[0071] In an optional implementation manner of this embodiment, refer to Figure 6 A buckle 13 is provided on the side of the upper shell 1 facing away from the sliding groove 11 , and the upper shell 1 is used to be connected to the printed circuit board structure through the buckle 13 .

[0072] Specifically: a buckle 13 is provided on one side of the upper shell 1 away from the sliding groove 11, and two buckles 13 are provided opposite to each other to limit the connection of the sliders on both sides of the middle frame 6, so that the middle frame 6 can only slide along the extension direction of the shell structure.

[0073] In an optional implementation manner of this embodiment, refer to Figure 6 and Figure 12 A connecting column 14 is provided at one end of the upper shell 1 away from the ejection port, and the connecting column 14 is connected to one end of the elastic member 7 away from the middle frame 6 .

[0074] Specifically: a connecting column 14 is provided at one end of the upper shell 1 and located in the accommodating space. The connecting column 14 is connected to the end of the elastic member 7 away from the middle frame 6, that is, the spring-shaped elastic member 7 is connected to the connecting column 14 to achieve the limiting fixation of the elastic member 7, and the other end of the elastic member 7 is connected to the hook 62 of the middle frame 6.

[0075] In an optional implementation manner of this embodiment, refer to Figure 7 One end of the rotating bracket 8 is provided with a top boss 82, the other end is provided with a protrusion 84, and the protrusion 84 is provided with an end boss 83; the top boss 82 is slidably arranged in the slide groove 63; the rotating bracket 8 is provided with a rotating column 81 rotatably connected to the shell structure.

[0076] Specifically: a top boss 82 is provided at one end of the rotating bracket 8, and this top boss 82 is connected to the slide groove 63, and the top boss 82 is preferably a cylindrical table, so that it can move along the slide groove 63 from the first groove position 631 to the second groove position 632; and a protrusion 84 is provided at the other end of the rotating bracket 8, and an end boss 83 is provided on the protrusion 84. It should be noted that the protrusion 84 is provided with an arc-shaped portion to facilitate its contact with the push button 4; and a rotating column 81 is provided in the middle position of the rotating bracket 8, and the rotating column 81 is used to be rotatably connected to the hole opened at the end of the fixing part 12 of the upper shell 1.

[0077] Further, refer to Figure 10 The push button 4 is provided with a first protrusion 41 and a second protrusion 42; the first protrusion 41 is used to push the end boss 83 and drive the rotating bracket 8 to rotate relative to the shell structure, so that the USB connector of the printed circuit board structure is extended; the second protrusion 42 is used to drive the rotating bracket 8 to rotate relative to the shell structure, so that the USB connector of the printed circuit board structure is retracted.

[0078] Specifically: the upper surface of the push button 4 is provided with anti-slip grooves, and the lower surface thereof is provided with a first protrusion 41 and a second protrusion 42; and preferably, the first protrusion 41 is provided on the right part of the lower surface of the push button 4, and the second protrusion 42 is provided at the end of the lower surface of the push button 4 and is in the shape of a right triangle; when in use, the first protrusion 41 pushes the end boss 83 to drive the rotating bracket 8 to rotate in the forward direction, and then the top boss 82 located at the other end of the rotating bracket 8 drives the middle frame 6 to move in the opposite direction relative to the push button 4 until the USB connector is pushed out; correspondingly, when the hypotenuse of the second protrusion 42 in the shape of a right triangle is abutted against the arc-shaped portion of the protrusion 84 and pushed, the rotating bracket 8 rotates in the reverse direction, thereby driving the middle frame 6 to move in the opposite direction relative to the push button 4 until the USB connector is retracted.

[0079] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other; the above embodiments in this specification are only used to illustrate the technical solution of the utility model, rather than to limit it; although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that: it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some or all of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the various embodiments of the utility model.

Claims

1. A retractable USB flash drive, characterized in that: It comprises a housing structure, a push button (4), a printed circuit board structure and a rotating bracket (8); a housing space is provided in the housing structure, and an ejection port communicating with the housing space is provided at one end of the housing structure; The printed circuit board structure is arranged in the accommodating space, and one end of the printed circuit board structure is slidably connected to the housing structure, and the other end is provided with a USB connector, and the printed circuit board structure is provided with a sliding groove (63); The rotating bracket (8) is rotatably connected to the housing structure, and one end of the rotating bracket (8) is slidably connected to the slide groove (63), and the other end is connected to the push button (4); The push button (4) is slidably connected to the housing structure, and the push button (4) is used to drive the rotating bracket (8) to rotate relative to the housing structure, and then drive the printed circuit board structure to slide through the rotating bracket (8), so that the USB connector is extended or retracted from the ejection port.

2. The retractable USB flash drive according to claim 1, characterized in that: The printed circuit board structure comprises a printed circuit board assembly (5) and a middle frame (6); one end of the printed circuit board assembly (5) is slidably connected to the housing structure via the middle frame (6), and the other end of the printed circuit board assembly (5) is provided with the USB connector; The middle frame (6) is provided with the sliding groove (63), and one end of the sliding groove (63) is set as a first groove position (631), and the other end is set as a second groove position (632); The rotating bracket (8) is used to slide from the second groove position (632) to the first groove position (631) to drive the USB connector of the printed circuit board structure to extend from the ejection port.

3. The retractable USB flash drive according to claim 2, characterized in that: The middle frame (6) is slidably connected to the housing structure via a slider (61), and one end of the middle frame (6) away from the printed circuit board assembly (5) is connected to the housing structure via an elastic member (7); The elastic member (7) is used to drive the middle frame (6) to move in a direction away from the ejection port when the rotating bracket (8) is disengaged from the first groove position (631), so as to retract the USB connector into the housing structure.

4. The retractable USB flash drive according to claim 3, characterized in that: The shell structure comprises an upper shell (1), a lower shell (2) and a side shell (3); the upper shell (1) is covered on the lower shell (2), and the upper shell (1) and the lower shell (2) are connected through the side shell (3); the accommodating space is enclosed between the upper shell (1) and the lower shell (2), and the ejection port is formed between the upper shell (1) and the lower shell (2).

5. The retractable USB flash drive according to claim 4, characterized in that: The upper shell (1) is provided with a sliding groove (11), and a push button (4) is slidably provided in the sliding groove (11).

6. The retractable USB flash drive according to claim 5, characterized in that: A window (111) is provided in the sliding groove (11), and a fixing member (12) is provided in the sliding groove (11); The fixing member (12) is provided with a connection hole, and the fixing member (12) is rotatably connected to the rotating bracket (8) through the connection hole; The rotating bracket (8) is arranged in the window (111).

7. The retractable USB flash drive according to claim 5, characterized in that: A buckle (13) is provided on a side of the upper shell (1) facing away from the sliding slot (11), and the upper shell (1) is used to be connected to the printed circuit board structure via the buckle (13).

8. The retractable USB flash drive according to claim 4, characterized in that: A connecting column (14) is provided at one end of the upper shell (1) away from the ejection port, and the connecting column (14) is connected to one end of the elastic member (7) away from the middle frame (6).

9. The retractable USB flash drive according to claim 1, characterized in that: One end of the rotating bracket (8) is provided with a top boss (82), and the other end is provided with a raised portion (84), and an end boss (83) is provided on the raised portion (84); The top boss (82) is slidably disposed in the slide groove (63); The rotating bracket (8) is provided with a rotating column (81) rotatably connected to the housing structure.

10. The retractable USB flash drive according to claim 9, characterized in that: The push button (4) is provided with a first protruding piece (41) and a second protruding piece (42); The first protruding member (41) is used to push the end boss (83) and drive the rotating bracket (8) to rotate relative to the housing structure, so that the USB connector of the printed circuit board structure extends out; The second protrusion (42) is used to drive the rotating bracket (8) to rotate relative to the housing structure, so as to retract the USB connector of the printed circuit board structure.

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