Docking station with hand drawing board

By designing a dock with integrated hand-painted boards, the automatic rewinding and storage of hand-painted boards is achieved using reels and elastic parts, the problem of large space and inconvenience in carrying the hand-painted boards is solved, and the convenience of use is improved.

CN222482647UActive Publication Date: 2025-02-14FULLINK TECH CO LTD
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Patent Information

Application Number
CN202421080332.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2025-02-14
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

In the prior art, hand-painted boards take up a large space, making them inconvenient to store and carry them out, resulting in users being easily forgotten or not, which affects actual use.

Method used

Design a dock with a hand-painted board. The hand-painted board is a flexible board, which is set in the main body. The hand-painted board can be automatically rewind and stored with elastic parts, occupying a small space; when needed, human hands can pull it out and unfold it. , and lock it through a rotary lock to prevent automatic rewinding.

Benefits of technology

It realizes automatic rewinding and storage of hand-painted boards, which occupy a small space and is convenient for storage and portability when using them. When using them, the hand-painted board can be fully expanded, and users can perform drawing operations with peace of mind, improving the convenience of use.

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Abstract

The utility model belongs to the technical field of computer peripheral auxiliary equipment, and provides a docking station with a hand drawing board, the docking station comprises a main body, a reel and a spin lock, the main body is provided with an expansion interface; the hand drawing board is arranged in the main body, and an opening for the hand drawing board to extend out is formed in the main body; the winding drum is arranged in the main body, the hand drawing board is a flexible board, and the hand drawing board can be wound on the winding drum; one end of the hand drawing plate is fixed on the winding drum, and the other end of the hand drawing plate extends out of the opening of the main body to be pulled out by a hand; an elastic piece is arranged in the winding drum, and the elastic piece is used for enabling the winding drum to have rotating force so as to drive the unfolded freehand drawing board to roll back; the spin lock is arranged on the main body, and the spin lock is used for being operated by a hand so as to be tightly pressed on the unfolded hand drawing plate. The technical problems that a hand drawing board in the prior art is large in occupied space and inconvenient to store and carry outdoors are solved.
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Description

Technical Field

[0001] The present application belongs to the technical field of computer peripheral auxiliary equipment, and in particular, relates to an expansion dock with a drawing board. Background Art

[0002] With different usage scenarios, digital docking stations are launched on the market to solve the connection adaptability problem of different data ports. The docking station, also known as the port replicator, is an external device designed specifically for laptops. By duplicating or even expanding the ports of the laptop, the laptop can be easily connected to multiple accessories or external devices (such as power adapters, network cables, mice, external keyboards, printers and external monitors) in one stop.

[0003] For people who are engaged in drawing and design, a drawing tablet is generally needed for drawing work. A common drawing tablet is a flat board, and an electronic drawing pen can be used to operate on the drawing tablet. It can be seen that when a drawing person needs to go out for work, in addition to carrying a laptop, he also needs to carry an expansion dock and a drawing tablet, which is very cumbersome. Moreover, since the drawing tablet occupies a large space and is inconvenient to store, it increases the difficulty of carrying, resulting in most people easily forgetting to bring it or even prefer not to bring it, which affects the actual use. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an expansion dock with a drawing tablet to solve the technical problem that the drawing tablet in the prior art occupies a large space and is inconvenient to store and carry out.

[0005] To achieve the above purpose, the technical solution adopted by the present application is: to provide an expansion dock with a hand-painted board, including:

[0006] The main body has an expansion interface; the hand-painted board is arranged in the main body, and the main body is provided with an opening for the hand-painted board to extend out;

[0007] A reel is arranged in the main body, the hand-painted board is a flexible board, and the hand-painted board can be rolled up on the reel; one end of the hand-painted board is fixed on the reel, and the other end of the hand-painted board extends from the opening of the main body for being pulled out by hand; an elastic member is arranged in the reel, and the elastic member is used to make the reel have a rotation force to drive the unfolded hand-painted board to rewind;

[0008] A twist lock is arranged on the main body, and the twist lock is used for being operated by a person to press the unfolded hand-painted board.

[0009] The beneficial effect of the docking station provided by the present application is that compared with the prior art, the present application cleverly combines the hand-drawn board with the docking station, and the docking station is integrated with the hand-drawn board, which is a flexible board. The reel on the main body and the elastic member built into the reel enable the hand-drawn board to be automatically rolled back and stored on the main body like a tape measure, taking up little space and being convenient for storage and carrying. When the hand-drawn board is needed, the hand-drawn board can be pulled out manually to fully unfold the hand-drawn board into a flat board, and the unfolded hand-drawn board can be locked with a rotary lock to prevent the hand-drawn board from automatically rolling back, so that the user can safely perform operations such as drawing on the hand-drawn board, which is convenient for use.

[0010] The structure of the reel is improved, and a fixed shaft is further provided inside the reel. The elastic member is a tape measure spring, one end of which is fixed on the fixed shaft, and the other end of which is pressed against the inner wall of the reel. The tape measure spring can be wound tightly on the fixed shaft as the reel rotates, or elastically recover and expand to drive the reel to rotate and reset. In this way, the reel has the function of being driven to rotate or to rotate and reset, thereby driving the flexible hand-painted board to automatically rewind.

[0011] The internal structure of the main body is improved, and the main body also includes a separation cover for separating the hand-drawn board from other components inside the main body, and the hand-drawn board and the reel are accommodated in the separation cover. In this way, a separation cover is set in the inner cavity of the main body, and the hand-drawn board is separated from other electrical components inside the main body by the separation cover to avoid mutual interference.

[0012] In one embodiment, one end of the fixed shaft is fixedly connected to the partition cover, and the other end of the fixed shaft is provided with a fixed ring for fixedly connecting to the elastic member; the fixed ring has a plurality of clamping grooves, which are arranged in an annular manner on the end of the fixed shaft, and the plurality of clamping grooves are used to selectively be fixedly connected to the end of the elastic member. In this way, the layout of the clamping grooves on the fixed ring facilitates the adjustment of the connection position between the end of the elastic member and the fixed shaft, thereby correcting the length tolerance of the elastic member and effectively adjusting the expansion range or rewinding stroke of the hand-painted board.

[0013] In one embodiment, the partition cover is provided with a slot for the rotary lock to move, the main body is provided with a long hole corresponding to the slot, and the rotary lock is arranged in the slot and the long hole, and extends out of the main body for manual operation. In this way, the rotary lock can be arranged vertically on the main body, or can be rotated to one side of the main body to press against the unfolded hand-painted board, thereby locking the unfolded state of the hand-painted board.

[0014] The structure of the rotary lock is improved, and the rotary lock includes an operating head and a pressing plate connected to each other. The pressing plate is an arc-shaped plate that matches the outer peripheral contour of the reel. The pressing plate is used to move along the outer periphery of the reel when the rotary lock is operated and press on the unfolded hand-drawing board, thereby locking the hand-drawing board.

[0015] In one embodiment, the operating head extends from the long hole on the main body to the outside of the main body for manual operation; the area of ​​the pressing piece is larger than the groove area on the partition cover, so that the pressing piece is placed in the partition cover and the entire rotary lock is restricted on the main body to prevent the rotary lock from falling off easily.

[0016] The structure of the hand-painted board is improved. The end of the hand-painted board extending out of the main body is provided with a pressure strip and a pull ring for manual operation. The two ends of the pressure strip extend to the end corners of the hand-painted board respectively. The pressure strip is used to keep the corners of the hand-painted board straight, which effectively solves the problem that the edges of the hand-painted board that is flexible and has a rewinding memory are easy to roll up naturally when unfolded, affecting actual use.

[0017] The internal structure of the main body is further improved, and a raised step is provided inside the main body, and the step has a vertical wall perpendicular to the bottom surface of the main body. The opening on the main body is opened on the vertical wall of the step, so that the hand-painted board can be horizontally extended from one side of the main body. This is conducive to the hand-painted board being able to be unfolded on one side of the main body to form a flat board, so that the unfolded hand-painted board can be stably laid on the placement carrier for easy use.

[0018] In one embodiment, a non-slip pad is provided at the bottom of the main body. The non-slip pad allows the main body to be adsorbed on the carrier, thereby improving the fixing effect. In particular, when a person pulls the flexible hand-painted board out of the main body, the main body is prevented from being easily displaced or unstable, thereby effectively improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of the expansion dock provided in an embodiment of the present application;

[0021] Figure 2 Schematic diagram of the open state structure of the drawing board in the expansion dock provided in the embodiment of the present application Figure 1 ;

[0022] Figure 3Schematic diagram of the expansion dock explosion structure provided in the embodiment of the present application Figure 1 ;

[0023] Figure 4 Schematic diagram of the expansion dock explosion structure provided in the embodiment of the present application Figure 2 ;

[0024] Figure 5 A schematic diagram of the partial structure of a drawing board in a storage state in an expansion dock provided in an embodiment of the present application;

[0025] Figure 6 A schematic diagram of the assembly structure of the hand-painted board, the reel and the partition cover provided in the embodiment of the present application;

[0026] Figure 7 An enlarged view of the internal structure of the expansion dock provided in an embodiment of the present application when the drawing board is opened;

[0027] Figure 8 A schematic diagram of the three-dimensional structure of the separation cover provided in an embodiment of the present application;

[0028] Fig. 9 A cross-sectional view of the internal structure of the reel provided in an embodiment of the present application;

[0029] Fig.10 A schematic diagram of the three-dimensional structure of the rotary lock provided in an embodiment of the present application;

[0030] Fig.11 Schematic diagram of the open state structure of the drawing board in the expansion dock provided in the embodiment of the present application Figure 2 ;

[0031] Fig.12 A schematic diagram of the internal structure of the expansion dock body provided in an embodiment of the present application;

[0032] Fig.13 This is a schematic diagram of the three-dimensional structure of the expansion dock body provided in an embodiment of the present application.

[0033] Among them, the reference numerals in the figure are:

[0034] 1-main body; 10-convex part; 11-extension interface; 12-main control board; 13-opening; 14-long hole; 15-step; 151-vertical wall; 16-anti-slip pad;

[0035] 2-hand-painted board; 21-pull ring; 22-pressing strip;

[0036] 3-reel; 30-fixing groove; 31-elastic member; 32-fixing shaft; 33-fixing ring; 331-clamping groove;

[0037] 4-twist lock; 41-operating head; 42-tablet pressing;

[0038] 5-partition cover; 51-through slot; 52-slot. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] For people who are engaged in drawing and design, a drawing board is generally needed for drawing work. A common drawing board is a flat board, and operations can be performed on the drawing board using an electronic drawing pen. When a drawing person needs to go out for work, in addition to carrying a laptop, he also needs to carry an expansion dock and a drawing board. The expansion dock is used to connect a drawing board, an external mouse, a keyboard, etc. at the same time to meet work needs. It can be seen that it is very cumbersome to carry more equipment when going out. Moreover, since the drawing board occupies a large space and is inconvenient to store, it increases the difficulty of carrying, resulting in most people easily forgetting to bring it or even prefer not to bring it, which affects actual use.

[0044] In the related art, there are also functions of integrating expansion docks on drawing boards, such as a rigid flat drawing board with multiple expansion interfaces to meet the user's expansion function needs. However, rigid flat drawing boards are difficult to store, which brings many inconveniences to carry when traveling.

[0045] Here, an embodiment of the present application provides a new expansion dock, which is integrated with a drawing board and is easy to store, thereby reducing the occupied space and facilitating carrying out. It effectively solves the technical problems that traditional drawing boards occupy a large space and are inconvenient to store and carry out. It is now described in detail.

[0046] Please also read Figure 1 and Figure 2 The expansion dock includes a main body 1, a hand-drawn board 2, a reel 3 and a rotary lock 4.

[0047] like Figure 2 and Figure 4 As shown, the main body 1 has a plurality of expansion interfaces 11, which may include but are not limited to USB, TYPE-C, HDMI, DP, RJ45 and other interfaces, and each expansion interface 11 may include one or more and be simultaneously arranged on the main body 1. It can be seen that the expansion interfaces 11 on the main body 1 can be arranged according to the volume of the main body 1 or the available space, which is not specifically limited here.

[0048] The main body 1 has a main control board 12 inside, and the main control board 12 is used to be electrically connected to the above-mentioned expansion interfaces 11 and the hand-drawn board 2 .

[0049] like Figure 2 and Figure 4 As shown, the hand-painted board 2 is disposed in the main body 1 , and an opening 13 is formed on the main body 1 , so that the hand-painted board 2 can extend out of the main body 1 from the opening 13 .

[0050] Please also read Figure 2 , Figure 5 and Figure 6 The reel 3 is disposed in the main body 1, and the hand-painted board 2 is a flexible board that can be rolled up, so that the hand-painted board 2 can be rolled up on the reel 3. In this embodiment, Figure 5 As shown, the reel 3 has a fixing groove 30, and the end of the hand-drawn board 2 can be clamped and fixed in the fixing groove 30, so that the end of the hand-drawn board 2 is fixedly connected to the reel 3. The other end of the hand-drawn board 2 extends out of the main body 1 from the opening 13 of the main body 1, so that the hand-drawn board 2 can be completely pulled out of the main body 1 by hand, so that the hand-drawn board 2 can be unfolded into a flat board, which is convenient for users to draw and perform other operations on it.

[0051] like Figure 6 As shown, an elastic member 31 is provided inside the reel 3, and the elastic member 31 is used to make the reel 3 have a rotational force to drive the unfolded hand-drawn board 2 to be rolled back and stored around the reel 3. In this way, the flexible hand-drawn board 2 can have an automatic rewinding force like a tape measure, and can be automatically rolled back and stored when the hand-drawn board 2 is not fixed.

[0052] Please also read Figure 2 , Figure 5 and Figure 7 The rotary lock 4 is arranged on the main body 1, and is used for manual operation, so that the rotary lock 4 is rotated and pressed against the unfolded hand-painted board 2, thereby locking the hand-painted board 2 pulled out of the main body 1 and in a flat plate, and preventing the hand-painted board 2 from automatically rolling back.

[0053] Compared with the prior art, the docking station with a hand-drawing board 2 provided in the embodiment of the present application cleverly combines the hand-drawing board 2 with the docking station. The docking station is integrated with the hand-drawing board 2, which is a flexible board. Figure 3 , Figure 5 and Figure 6 As shown, by using the reel 3 on the main body 1 and the elastic member 31 built in the reel 3, the hand-drawn board 2 can be automatically rolled back and stored on the main body 1, which is convenient for storage. Figure 2 and Figure 7 As shown, the hand-drawing board 2 can be pulled out by hand to fully unfold the hand-drawing board 2 into a flat board, and the unfolded hand-drawing board 2 can be locked using the rotary lock 4 to prevent the hand-drawing board 2 from automatically rolling back, so that the user can safely perform operations such as drawing on the hand-drawing board 2, which is convenient to use.

[0054] It can be seen that the device provided in the embodiment of the present application not only has the function of the expansion interface 11 of the expansion dock, but also integrates a hand-drawn board 2. By using the reel 3 on the main body 1, the hand-drawn board 2 can be automatically rolled back on the reel 3 like a measuring tape, so that the space occupied by the entire device is very small, which is convenient for storage and carrying outside, and effectively solves the technical problem that the traditional hand-drawn board 2 occupies a large space and is inconvenient for storage and carrying outside.

[0055] For the specific structure of the reel 3, in one embodiment of the present application, please refer to Figure 6 and Figure 8 A fixed shaft 32 is also provided in the reel 3.

[0056] The elastic member 31 is preferably a tape measure spring, which is a member similar in shape to a steel tape measure, and utilizes its flexural properties to automatically unfold the elasticity accumulated when folded. After unfolding, it can provide the locking force required by the expandable structure by its own rigidity.

[0057] In this embodiment, if Fig. 9 As shown, one end 31a of the tape spring is fixed on the fixed shaft 32, and the other end 31b of the tape spring is pressed against the inner wall of the reel 3. The tape spring can be wound around the fixed shaft 32 as the reel 3 rotates, or expand when elastically recovering to drive the reel 3 to rotate and reset.

[0058] In this way, the reel 3 has the function of being driven to rotate or turn back to reset, thereby driving the flexible hand-painted board 2 to automatically rewind.

[0059] As for the specific internal structure of the main body 1, in actual application, since the main body 1 is provided with a hand-drawing board 2, a main control board 12 and related cables, wherein the hand-drawing board 2 is an active body that can be operated and moved, the hand-drawing board 2 and the main control board 12 and related cables are in the same space and are prone to interfere with each other.

[0060] To this end, in one embodiment of the present application, please refer to Figure 7 and Figure 8 The main body 1 also includes a partition cover 5, which is used to separate the hand-drawing board 2 from other electrical components inside the main body 1, such as the above-mentioned main control board 12 and related cables, so that the hand-drawing board 2 and the reel 3 can be accommodated in the partition cover 5.

[0061] In this embodiment, the separation cover 5 may preferably be a cylindrical structure similar to a cylinder, so as to match the shape of the flexible hand-painted board 2 wound on the reel 3. Specifically, as Figure 8 As shown, a through groove 51 is opened on the peripheral side of the partition cover 5 of the above-mentioned cylindrical structure, and the through groove 51 corresponds to the position of the opening 13 on the main body 1, so that one end of the hand-drawing board 2 can pass through the through groove 51 and the opening 13 on the main body 1 in sequence and extend out of the main body 1.

[0062] Therefore, a partition cover 5 is provided in the inner cavity of the main body 1 , and the partition cover 5 is used to separate the hand-drawn board 2 and the main control board 12 , so as to prevent the hand-drawn board 2 and other electrical components inside the main body 1 from interfering with each other.

[0063] In one embodiment of the present application, see Figure 8 One end of the fixed shaft 32 inside the reel 3 is fixedly connected to the separation cover 5, so that the fixed shaft 32 extends axially in the separation cover 5. The fixed shaft 32 can be preferably arranged on the central axis of the separation cover 5 so that the reel 3 can be centrally arranged in the separation cover 5.

[0064] A fixing ring 33 is provided on the other end of the fixing shaft 32, and the fixing ring 33 is used to be fixedly connected to the elastic member 31. Since the elastic member 31 is a tape measure spring, the fixing ring 33 can be used to be connected to one end of the tape measure spring.

[0065] In actual applications, the lengths of different tape measure springs may have dimensional tolerances, resulting in different activity strokes for driving the reel 3 and driving the flexible hand-drawing board 2 to rewind or unfold, which may easily affect the unfolding range of the hand-drawing board 2 on the main body 1, or affect the storage status of the hand-drawing board 2 on the main body 1.

[0066] To this end, in this embodiment, Figure 8 and Fig. 9As shown, the fixing ring 33 also has a plurality of clamping grooves 331 , which are arranged in a ring shape on the end of the fixing shaft 32 , and are used to selectively be fixedly connected with the end of the elastic member 31 .

[0067] In this way, by utilizing the layout of the clamping groove 331 on the fixing ring 33, it is convenient to adjust the connection position between the end of the elastic member 31 and the fixing shaft 32, thereby correcting the length tolerance of the elastic member 31 and effectively adjusting the expansion range or rewinding stroke of the hand-painted board 2.

[0068] For the structure on the partition cover 5, in one embodiment of the present application, please refer to Figure 3 , Figure 7 and Figure 8 The partition cover 5 is provided with a slot 52 for the rotary lock 4 to move. In coordination, the main body 1 is also provided with a long hole 14, which corresponds to the position of the slot 52 on the partition cover 5. The rotary lock 4 is arranged in the slot 52 of the partition cover 5 and the long hole 14 of the main body 1, and extends out of the main body 1 for manual operation.

[0069] In this embodiment, the slot 52 on the partition cover 5 extends along the outer circumference of the partition cover 5 toward the opening 13 of the main body 1 , and the elongated hole 14 on the main body 1 matches the slot 52 in shape and has a corresponding position.

[0070] In this way, the rotary lock 4 can be vertically arranged on the main body 1 , or can be rotated 45-90 degrees to one side of the main body 1 and then pressed against the unfolded hand-painted board 2 to lock the unfolded state of the hand-painted board 2 .

[0071] For the specific structure of the rotary lock 4, please refer to Figure 7 and Fig.10 The rotary lock 4 includes an operating head 41 and a pressing piece 42. The operating head 41 is connected to the pressing piece 42, and the operating head 41 is used for manual operation.

[0072] The pressing sheet 42 is preferably an arc-shaped sheet that matches the outer periphery of the reel 3 and can be displaced in an arc direction outside the outer periphery of the reel 3. The pressing sheet 42 is used to move along the outer periphery of the reel 3 when the rotary lock 4 is operated, and press on the unfolded flexible hand-painted board 2, thereby locking the hand-painted board 2.

[0073] The operating head 41 extends out of the main body 1 from the long hole 14 on the main body 1 , so that a person can directly pick up the operating head 41 to operate the entire rotary lock 4 .

[0074] The area of ​​the pressing sheet 42 is larger than the area of ​​the slot 52 on the partition cover 5, so that the pressing sheet 42 is placed in the partition cover 5 and the entire rotary lock 4 is restricted on the main body 1 to prevent the rotary lock 4 from falling off easily.

[0075] As for the specific structure of the hand-painted board 2, in actual application, since the hand-painted board 2 is a flexible board and generates a rewinding force under the drive of the roller 3 for a long time, the flexible hand-painted board 2 is easy to have an automatic rolling "memory". That is, when the hand-painted board 2 is in the unfolded state, its edges or corners are easy to roll up naturally, affecting the use.

[0076] To this end, in one embodiment of the present application, see Fig.11 A pull ring 21 is provided on the end of the hand-drawing board 2 extending out of the main body 1. The pull ring 21 is used for manually pulling out the flexible hand-drawing board 2 in the storage state to present an unfolded flat board, which is convenient for drawing and other operations on it.

[0077] A pressure strip 22 is further provided on the end of the hand-painted board 2 extending out of the main body 1 , and both ends of the pressure strip 22 extend to the end corners of the hand-painted board 2 .

[0078] In this way, the rigidity of the pressure strip 22 is utilized to keep the ends of the hand-painted board 2 straight, and prevent the ends of the hand-painted board 2 from rolling up easily. The two ends of the pressure strip 22 extend to the corners of the hand-painted board 2, and the pressure strip 22 is utilized to keep the corners of the hand-painted board 2 straight. The hand-painted board 2 can be kept in an unfolded state after being pulled out, and the edges and corners of the hand-painted board 2 are prevented from rolling up easily, which is convenient for users to use.

[0079] For the main body 1 structure of the docking station, see Fig.12 The shape of the main body 1 can be set to match the shape of the internal reel 3 and the flexible hand-painted board 2 wound on the reel 3, so that a cylindrical protrusion 10 can be formed on the main body 1.

[0080] In order to allow the hand-painted board 2 to be pulled out horizontally from the cylindrical protrusion 10, in one embodiment of the present application, refer to Fig.12 The main body 1 is also provided with a raised step 15, which is horizontally placed in the inner cavity of the main body 1. The step 15 has a vertical wall 151 perpendicular to the bottom surface of the main body 1, and the opening 13 on the main body 1 is opened on the vertical wall 151 of the step 15, so that the hand-painted board 2 can be horizontally extended from one side of the main body 1. It is beneficial that the hand-painted board 2 can be unfolded on one side of the main body 1 to form a flat board, so that the unfolded hand-painted board 2 can be stably laid on a carrier such as a desktop, which is convenient for use.

[0081] Preferably, in this embodiment, the step 15 is separated from the reel 3 and the flexible hand-drawing board 2 wound on the reel 3 , so as to effectively prevent the step 15 from interfering with the movement of the hand-drawing board 2 .

[0082] The docking station provided in the embodiment of the present application is integrated with a removable drawing board 2. In one embodiment of the present application, refer to Fig.13The bottom of the main body 1 is provided with an anti-skid pad 16, which allows the main body 1 to be adsorbed on a carrier such as a desktop to improve the fixing effect. In particular, when the flexible hand-painted board 2 is pulled out of the main body 1 by hand, the main body 1 is prevented from being easily displaced or unstable, thereby effectively improving the use effect.

[0083] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A docking station with a hand-painted board, characterized in that: include: The main body has an expansion interface; the hand-painted board is arranged in the main body, and the main body is provided with an opening for the hand-painted board to extend out; A reel is arranged in the main body, the hand-painted board is a flexible board, and the hand-painted board can be rolled up on the reel; one end of the hand-painted board is fixed on the reel, and the other end of the hand-painted board extends from the opening of the main body for being pulled out by hand; an elastic member is arranged in the reel, and the elastic member is used to make the reel have a rotation force to drive the unfolded hand-painted board to rewind; A twist lock is arranged on the main body, and the twist lock is used for being operated by a person to press the unfolded hand-painted board.

2. The expansion dock with a hand-drawn tablet according to claim 1, characterized in that: A fixed shaft is also provided inside the reel, and the elastic member is a tape measure spring. One end of the tape measure spring is fixed on the fixed shaft, and the other end of the tape measure spring is pressed against the inner wall of the reel. The tape measure spring can be wound tightly on the fixed shaft as the reel rotates, or can elastically restore and expand to drive the reel to rotate and reset.

3. The expansion dock with a hand-drawn board according to claim 2, characterized in that: The main body also includes a separation cover for separating the hand-painted board from other components inside the main body, and the hand-painted board and the roll are accommodated in the separation cover.

4. The expansion dock with a hand-drawn board according to claim 3, characterized in that: One end of the fixed shaft is fixedly connected to the separation cover, and the other end of the fixed shaft is provided with a fixing ring for fixedly connecting with the elastic member; the fixing ring has a plurality of clamping grooves, and the plurality of clamping grooves are arranged in a ring shape on the end of the fixed shaft, and the plurality of clamping grooves are used for optional fixed connection with the end of the elastic member.

5. The expansion dock with a hand-drawn tablet according to claim 3, characterized in that: The partition cover is provided with a slot for the rotary lock to move, the main body is provided with a long hole corresponding to the slot position, the rotary lock is arranged in the slot and the long hole, and extends out of the main body.

6. The expansion dock with a hand-drawn board according to claim 5, characterized in that: The rotary lock comprises an operating head and a pressing sheet connected to each other. The pressing sheet is an arc-shaped sheet matched with the outer peripheral contour of the reel. The pressing sheet is used to move along the outer periphery of the reel and press against the unfolded hand-painted board when the rotary lock is operated.

7. The expansion dock with a hand-drawn board according to claim 6, characterized in that: The operating head extends from the long hole on the main body to the outside of the main body for manual operation; the area of ​​the pressing sheet is larger than the slot area on the partition cover.

8. The docking station with a hand-drawn tablet according to claim 1, characterized in that: A pressure strip and a pull ring for manual operation are arranged on the end of the hand-painted board extending out of the main body, and the two ends of the pressure strip extend to the end corners of the hand-painted board respectively.

9. The expansion dock with a hand-drawn tablet according to claim 1, characterized in that: A raised step is also provided in the main body, and the step has a vertical wall perpendicular to the bottom surface of the main body, and the opening on the main body is opened on the vertical wall of the step.

10. The expansion dock with a hand-drawing board according to any one of claims 1 to 9, characterized in that: An anti-skid pad is arranged at the bottom of the main body.