Dictionary pen

Abstract

The utility model relates to the field of electronic products, and provides a dictionary pen which comprises a shell, a scanning contact pin, a limiting piece and an operation key, the scanning contact pin is installed on the shell in a telescopic mode in the length direction of the dictionary pen, the limiting piece is movably arranged in the shell, and the operation key is installed on the shell in a sliding mode. Under the condition that the operation key moves to a first position relative to the shell, the limiting piece is connected with the scanning contact pin, so that the position of the scanning contact pin relative to the shell is fixed; and when the operation key moves to a second position relative to the shell, the limiting piece is separated from the scanning contact pin, so that the scanning contact pin can do telescopic motion relative to the shell. During use, the operation key is slid to a second position so as to realize scanning; after the dictionary pen is used, the operation key is slid to the first position, the limiting piece is connected with the scanning contact pin under the pushing of the operation key so as to fix the scanning contact pin, and therefore it is guaranteed that the scanning contact pin is not prone to being impacted and damaged, physical protection is formed on the scanning contact pin through the shell, and the working durability of the dictionary pen is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a dictionary pen. Background Art

[0002] The dictionary pen uses optical character recognition (OCR) technology and an embedded translation system to replace the traditional electronic dictionary's key input method with ultra-fast scanning and word search. It is easy to use and has rich functions, and is loved by more and more users.

[0003] The existing dictionary pen has scanning contact pins that are always exposed to the outside world whether it is in the scanning or storage state. Once the dictionary pen falls or is hit, the scanning contact pins are easily damaged, which reduces the working durability of the dictionary pen. Utility Model Content

[0004] The utility model provides a dictionary pen, which is used to solve the problem that the scanning contact foot of the existing dictionary pen is easily damaged when it is impacted.

[0005] The utility model provides a dictionary pen, comprising: a housing, a scanning contact foot, a limiting member and an operating key, wherein the scanning contact foot is retractably mounted on the housing along the length direction of the dictionary pen, the limiting member is movably arranged in the housing, and the operating key is slidably mounted on the housing;

[0006] When the operation key moves to a first position relative to the shell, the limit member is connected to the scanning feeler, so that the position of the scanning feeler relative to the shell is fixed; when the operation key moves to a second position relative to the shell, the limit member is separated from the scanning feeler, so that the scanning feeler can move telescopically relative to the shell.

[0007] According to the dictionary pen provided by the utility model, an elastic reset member is installed between the limiting member and the housing, and the extension direction of the elastic reset member is consistent with the moving direction of the limiting member.

[0008] The housing is provided with a strip-shaped hole, one side of the limiting member is provided with a receiving groove, and the other side is provided with a limiting pin, the operating key can be slidably installed in the strip-shaped hole and the inner end of the operating key is accommodated in the receiving groove;

[0009] One side wall of the accommodating groove is an inclined surface. As the operating key slides from the second position to the first position relative to the shell, the inner end of the operating key pushes against the inclined surface, so that the limit pin is inserted into the scanning contact foot; as the operating key slides from the first position to the second position relative to the shell, the elastic reset member drives the limit member to reset, so that the limit pin is disengaged from the scanning contact foot.

[0010] According to the dictionary pen provided by the utility model, a mounting platform is provided in the shell, the elastic reset member and the limit pin are located on the same side, one end of the elastic reset member abuts against the limit member, and the other end abuts against the mounting platform.

[0011] According to the dictionary pen provided by the utility model, the elastic reset member is provided in plurality, and the plurality of elastic reset members are arranged in parallel;

[0012] And / or, the limiting member is provided with a mounting post, and the elastic reset member is sleeved on the mounting post.

[0013] According to the dictionary pen provided by the utility model, a first pressure-sensing element, a processor and a power supply are installed in the housing;

[0014] The power supply is electrically connected to the first pressure sensing element and the processor respectively, and the first pressure sensing element and the processor are electrically connected. The first pressure sensing element generates a first trigger signal when the operation key moves to a first position relative to the shell and generates a second trigger signal when the operation key moves to a second position relative to the shell. The processor controls the power supply to be turned off based on the first trigger signal and controls the power supply to be turned on based on the second trigger signal.

[0015] According to a dictionary pen provided by the present invention, it also includes a scanning component, a second pressure sensing element is installed in the shell, the second pressure sensing element and the scanning component are electrically connected to the processor respectively, when the operation key moves to the second position relative to the shell, the scanning contact triggers the second pressure sensing element when it is retracted into the shell, and the processor turns on or off the scanning component based on the triggering state of the second pressure sensing element.

[0016] According to the dictionary pen provided by the utility model, the scanning contact foot is fixedly connected to the scanning component.

[0017] According to the dictionary pen provided by the utility model, it also includes an elastic member, the scanning contact foot is protruding with a limit platform, a baffle is constructed in the shell, the limit platform is arranged opposite to the baffle, one end of the elastic member is against the limit platform, and the other end is against the baffle.

[0018] According to the dictionary pen provided by the present invention, a limit plate is constructed in the shell, and when the dictionary pen is in a non-scanning state, the limit platform is abutted against the limit plate.

[0019] According to the dictionary pen provided by the present invention, limiting platforms are respectively provided on two opposite sides of the scanning contact foot, and each of the limiting platforms is installed with the elastic member.

[0020] The utility model provides a dictionary pen, in which a limiter is movably arranged in a shell, and an operation key can be slidably installed on the shell; when the dictionary pen needs to be used, the user slides the operation key to the second position to separate the limiter and the scanning tentacle, and the scanning tentacle is extended and retracted along the length direction of the dictionary pen to realize the scanning of the dictionary pen; when the dictionary pen needs to be stored, the user slides the operation key to the first position, the operation key and the limiter are abutted, and the limiter is connected to the scanning tentacle under the abutment of the operation key to fix the position of the scanning tentacle and limit the movement of the scanning tentacle, thereby ensuring that the scanning tentacle is not easily damaged by impact, and the scanning tentacle is physically protected by the shell to ensure the working durability of the dictionary pen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a front view of the dictionary pen provided by the utility model.

[0023] Figure 2 It is a side view of the dictionary pen provided by the utility model.

[0024] Figure 3 It is a partial structural schematic diagram of the dictionary pen provided by the utility model.

[0025] Reference numerals:

[0026] 1. Shell; 11. Strip hole; 12. Mounting platform; 13. Baffle; 14. Limit plate; 2. Scanning contact pin; 21. Scanning window; 22. Limiting platform; 221. Limiting column; 23. Limiting hole; 3. Limiting member; 31. Accommodating groove; 311. Inclined surface; 32. Limiting pin; 33. Mounting column; 4. Operation key; 5. Elastic reset member; 6. First pressure sensing element; 7. Processor; 8. Elastic member. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The terms "first" and "second" in the specification and claims of this utility model may explicitly or implicitly refer to one or more of these features. In the description of this utility model, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected items, and the character " / " generally indicates an "or" relationship between the connected items.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 to the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] The following combination Figure 1-Figure 3 , through specific embodiments and application scenarios, a dictionary pen provided by an embodiment of the utility model is described in detail.

[0032] like Figures 1 to 3 As shown, the present invention provides a dictionary pen, comprising: a housing 1, a scanning contact 2, a stopper 3, and an operating key 4. The scanning contact 2 is retractably mounted to the housing 1 along the length of the dictionary pen. The stopper 3 is movably mounted within the housing 1. The operating key 4 is slidably mounted to the housing 1.

[0033] When the operation key 4 moves to the first position relative to the housing 1, the stopper 3 is connected to the scanning contact pin 2, so that the position of the scanning contact pin 2 relative to the housing 1 is fixed. When the operation key 4 moves to the second position relative to the housing 1, the stopper 3 separates from the scanning contact pin 2, so that the scanning contact pin 2 can move telescopically relative to the housing 1.

[0034] Specifically, if Figure 1 and Figure 2 As shown, the shell 1 is in the shape of an elongated strip, and is intended to be held by a human hand. One end face of the shell 1 has a through hole, and the scanning tentacle 2 is retractably provided in the through hole, so that the scanning tentacle 2 can extend out of the through hole or be retracted into the interior of the shell 1. When the dictionary pen is in a scanning state, the scanning tentacle 2 contacts the scanning medium, and the scanning tentacle 2 retracts into the shell 1; when the dictionary pen is in a non-scanning state, the scanning tentacle 2 resets and extends out of the through hole. In one embodiment, a scanning window 21 is provided at the bottom center of the scanning tentacle 2, and the scanning window 21 is used to frame the content to be scanned during scanning. In another embodiment, the scanning window 21 is provided on the shell 1.

[0035] The dictionary pen includes a scanning assembly, which is fixedly mounted within a scanning window 21. The scanning assembly includes a camera and a fill light. The camera and fill light can be fixed to the wall of the scanning window 21 using screws or other fasteners. The camera is used to scan the content to be scanned as the scanning feeler 2 moves along the surface of the scanning medium, and the fill light is used to illuminate the camera. A display screen is provided on the front of the housing 1, and the scanned content and translated content of the scanning assembly can be transmitted to the display screen for user viewing.

[0036] like Figure 2 As shown, the operation key 4 can be slidably arranged on the side of the shell 1 and close to one end of the scanning tentacle 2. Optionally, the operation key 4 is a sliding button or a sliding switch. The user switches the scanning tentacle 2 between a locked state and an unlocked state through the operation key 4. When it is necessary to lock the scanning tentacle 2, the user slides the operation key 4 to the first position, so that the limiter 3 moves in the direction close to the scanning tentacle 2 under the push of the operation key 4 until it is connected to the scanning tentacle 2, thereby fastening the scanning tentacle 2 to the shell 1, avoiding the scanning tentacle 2 from being accidentally touched, resulting in frequent switching of the scanning component and affecting its service life. When the scanning tentacle 2 is in the locked state, the scanning tentacle 2 can be completely retracted into the shell 1, or the end of the scanning tentacle 2 away from the shell 1 can be exposed through a through hole, as long as the position of the scanning tentacle 2 can be limited.

[0037] When it is necessary to unlock the scanning contact pin 2, the user slides the operation key 4 to the second position, causing the limiter 3 to return to its initial position, and the limiter 3 and the scanning contact pin 2 to separate. At this time, the limiter 3 no longer limits the movement of the scanning contact pin 2, and the scanning contact pin 2 can freely extend and retract along the length of the housing 1, thereby facilitating scanning with the dictionary pen.

[0038] The utility model provides a dictionary pen, in which a limiter 3 is movably arranged in a shell 1, and an operation key 4 can be slidably installed on the shell 1; when the dictionary pen needs to be used, the user slides the operation key 4 to the second position to separate the limiter 3 and the scanning tentacle 2, and the scanning tentacle 2 is extended and retracted along the length direction of the dictionary pen to realize the scanning of the dictionary pen; when the scanning is finished, the user slides the operation key 4 to the first position, and the operation key 4 and the limiter 3 are abutted against each other, and the limiter 3 is connected to the scanning tentacle 2 under the abutment of the operation key 4 to fix the position of the scanning tentacle 2 relative to the shell 1, limit the movement of the scanning tentacle 2, thereby ensuring that the scanning tentacle 2 is not easily damaged by impact, and the scanning tentacle 2 is physically protected by the shell 1 to ensure the working durability of the dictionary pen.

[0039] In some embodiments, as Figure 3 As shown, an elastic reset member 5 is installed between the limiting member 3 and the housing 1. The extension direction of the elastic reset member 5 is consistent with the moving direction of the limiting member 3.

[0040] like Figure 2 As shown, the housing 1 is provided with a strip hole 11. Figure 3 As shown, one side of the limiting member 3 is provided with a receiving groove 31 and the other side is provided with a limiting pin 32. The operating key 4 can be slidably installed in the strip hole 11 and the inner end of the operating key 4 is received in the receiving groove 31.

[0041] One side wall of the accommodating groove 31 is an inclined surface 311. As the operating key 4 slides from the second position to the first position relative to the housing 1, the inner end of the operating key 4 pushes against the inclined surface 311, causing the stop pin 32 to be inserted into the scanning contact pin 2. As the operating key 4 slides from the first position to the second position relative to the housing 1, the elastic return member 5 resets the stop member 3, causing the stop pin 32 to disengage from the scanning contact pin 2.

[0042] Specifically, Figure 3 As shown, a limit pin 32 is protruding from a side of the limit member 3 close to the scanning antenna 2. The scanning antenna 2 is provided with a limit hole 23 corresponding to the limit pin 32. A receiving groove 31 is provided on the side of the limit member 3 away from the limit column 221, and the receiving groove 31 and the bar-shaped hole 11 are provided correspondingly. The outer end of the operating key 4 is exposed outside the housing 1 for user operation. The groove wall of the receiving groove 31 on the side closer to the first position is an inclined surface 311, so that the receiving groove 31 has a groove structure with a large groove opening and a small groove bottom. During the process of sliding the operating key 4 from the second position to the first position, the inner end of the operating key 4 abuts against the inclined surface 311 and moves along the inclined surface 311, pushing the limit pin 32 close to the scanning antenna 2. When the operating key 4 slides to the first position, the limit pin 32 is inserted into the limit hole 23, thereby achieving a fixed connection between the limit member 3 and the scanning antenna 2, limiting the movement of the scanning antenna 2, and forming a physical protection for the scanning antenna 2 through the housing 1.

[0043] During the sliding process of the operating key 4 from the first position to the second position, the inner end of the operating key 4 moves in the opposite direction along the inclined surface 311, and the limiter 3 moves in a direction away from the scanning contact pin 2 under the elastic action of the elastic return member 5, thereby separating the limiter 3 and the scanning contact pin 2. The elastic return member 5 can be a spring. It should be noted that when the operating key 4 slides to the second position, the inner end of the operating key 4 can remain in contact with the inclined surface 311 under the action of the elastic return member 5, or it can separate from the inclined surface 311, so that the limiter 3 is stabilized in its original position only under the action of the elastic return member 5.

[0044] Optionally, the elastic reset member 5 is installed on the side of the limit member 3 facing the scanning contact 2, that is, the elastic reset member 5 and the limit pin 32 are located on the same side. Figure 3 As shown, the mounting platform 12 is located between the stopper 3 and the scanning antenna 2. The mounting platform 12 is fixed to the inner wall of the housing 1. Alternatively, the mounting platform 12 and the housing 1 are integrally formed. One end of the elastic return member 5 abuts against the stopper 3, and the other end abuts against the mounting platform 12. When the operating member slides to the first position, the stopper pin 32 is inserted into the stopper hole 23, and the elastic return member 5 accumulates force. When the operating member slides to the second position, the elastic return member 5 releases the stopper 3 and the scanning antenna 2 due to its elastic action.

[0045] Alternatively, an elastic return member 5 is mounted on the side of the retaining member 3 facing the operating key 4, that is, on the same side as the receiving slot 31. One end of the elastic return member 5 is connected to the inner wall of the housing 1, and the other end is connected to the retaining member 3. When the operating key 4 slides to the first position, the elastic return member 5 stretches and accumulates force; when the operating key 4 slides to the second position, the elastic return member 5 pulls the retaining member 3 back to its original position, disengaging the retaining member 3 from the scanning contact 2.

[0046] In some embodiments, there are multiple elastic reset members 5. Multiple elastic reset members 5 are arranged in parallel. Figure 3 As shown, multiple elastic return members 5 are positioned on the same side of the stopper 3. With the elastic return members 5 and the stopper pin 32 on the same side, each elastic return member 5 is provided with a corresponding mounting platform 12, with multiple mounting platforms 12 spaced apart along the length of the housing 1. The extension and contraction direction of each elastic return member 5 aligns with the movement direction of the stopper 3, allowing the multiple elastic return members 5 to collectively drive the stopper 3 away from the scanning contact pin 2, enhancing the flexibility of the stopper 3 in resetting.

[0047] like Figure 3 As shown, the limit member 3 is provided with a mounting column 33, and the elastic reset member 5 is sleeved on the mounting column 33, so as to guide the elastic reset member 5 to extend and retract in a direction consistent with the moving direction of the limit member 3 through the mounting column 33, thereby improving the flexibility of resetting the limit member 3.

[0048] Furthermore, in some embodiments, Figure 3 As shown, a first pressure sensing element 6, a processor 7 and a power supply are installed in the housing 1.

[0049] The power supply is electrically connected to the first pressure-sensing element 6 and the processor 7, respectively. The first pressure-sensing element 6 and the processor 7 are electrically connected. The first pressure-sensing element 6 generates a first trigger signal when the operation key 4 moves to a first position relative to the housing 1, and generates a second trigger signal when the operation key 4 moves to a second position relative to the housing 1. The processor 7 controls the power supply to be turned off based on the first trigger signal and to be turned on based on the second trigger signal.

[0050] Specifically, the processor 7 and the power supply can be fixedly mounted within the housing 1 using screws or other fixings. The power supply is used to power the processor 7 and the first pressure sensing element 6. Optionally, the power supply can be a rechargeable battery such as a lithium battery or a nickel-cadmium battery. Optionally, the first pressure sensing element 6 can be a capacitive pressure sensing element or a resistive pressure sensing element.

[0051] like Figure 3 As described, the limiter 3 is provided with a protrusion corresponding to the first pressure-sensitive element 6. When the operation key 4 moves to the first position, the protrusion squeezes the first pressure-sensitive element 6, and the first pressure-sensitive element 6 generates a first trigger signal under the action of pressure. The first pressure-sensitive element 6 sends the first trigger signal to the processor 7, and the processor 7 controls the power supply to turn off the dictionary pen based on the first trigger signal. After using the dictionary pen, the user slides the operation key 4 to the first position, which can not only lock the scanning contact 2, but also turn off the power. The dictionary pen no longer needs to be provided with an additional power button, which improves the user's convenience.

[0052] When the operation key 4 slides to the second position, the limit member 3 moves away from the first pressure sensing element 6, the limit member 3 and the first pressure sensing element 6 disengage, the first pressure sensing element 6 generates a second trigger signal, and the processor 7 controls the power supply to turn on based on the second trigger signal to turn on the dictionary pen for user convenience.

[0053] In some embodiments, a second pressure-sensing element is installed within the housing 1. The second pressure-sensing element and the scanning assembly are each electrically connected to the processor 7. When the operation key 4 moves to the second position relative to the housing 1, the scanning contact 2 triggers the second pressure-sensing element when it retracts into the housing 1. The processor 7 then turns the scanning assembly on or off based on the triggering state of the second pressure-sensing element.

[0054] Among them, the selection of the second pressure-sensing element can be the same as that of the first pressure-sensing element 6, and will not be repeated. When the operation key 4 slides to the second position, the scanning tentacle 2 can freely extend and retract relative to the shell 1. When in use, the scanning tentacle 2 and the scanning medium collide and shrink into the shell 1 to squeeze the second pressure-sensing element. The second pressure-sensing element generates a third trigger signal under the squeezing action of the scanning tentacle 2. The processor 7 controls the scanning component to turn on according to the third trigger signal so that the scanning component completes the scan when the scanning tentacle 2 slides along the surface of the scanning medium. When the scanning tentacle 2 and the scanning medium are separated, the scanning tentacle 2 extends out of the through hole and separates from the second pressure-sensing element. The second pressure-sensing element generates a fourth trigger signal. The processor 7 controls the scanning component to turn off according to the fourth trigger signal to reduce power consumption.

[0055] In an optional embodiment, the scanning assembly is fixed to the scanning pin 2. The scanning assembly is connected to the processor 7 via a flexible wire, providing space for the scanning assembly to move with the scanning pin 2. When the scanning pin 2 is fixed within the housing 1 by the stopper 3, the scanning pin 2 will not be accidentally triggered to trigger the scanning assembly, thus providing protection for the scanning assembly.

[0056] In some embodiments, as Figure 3 As shown, the dictionary pen further includes an elastic member 8. The scanning contact foot 2 is provided with a stopper 22. A baffle 13 is constructed within the housing 1. The stopper 22 is disposed opposite the baffle 13. One end of the elastic member 8 abuts against the stopper 22, and the other end abuts against the baffle 13.

[0057] Specifically, the limit platform 22 is always housed within the housing 1. The baffle 13 is fixed to the housing 1 or is integral with the housing 1. The elastic member 8 is located between the baffle 13 and the limit platform 22. The elastic member 8 extends and contracts in the same direction as the scanning antenna 2. When the scanning antenna 2 is retracted within the housing 1, the elastic member 8 accumulates force. When the scanning antenna 2 loses contact with the scanning medium, the scanning antenna 2 extends out of the through hole under the elastic action of the elastic member 8. Optionally, the elastic member 8 is a spring.

[0058] Optionally, when the end of the scanning contact pin 2 extends out of the through hole, the limiting platform 22 and the inner wall of the housing 1 are abutted against each other to limit the scanning contact pin 2 from further extending outward.

[0059] Also optional, such as Figure 3 As shown, a limit plate 14 is constructed within the housing 1. The limit plate 14 is fixed to the housing 1 near the through hole. When the dictionary pen is not scanning, the limit platform 22 is elastically supported by the elastic member 8 and abuts against the limit plate 14. This prevents the scanning contact pin 2 from extending further outward through the restraining action of the limit platform 22 and the limit plate 14. This also prevents the limit platform 22 from striking the housing 1 during movement, thereby improving the durability of the housing 1.

[0060] In some embodiments, as Figure 3 As shown, a limit platform 22 is provided on opposite sides of the scanning tentacle 2. Each limit platform 22 is installed with an elastic member 8. Among them, the two limit platforms 22 are symmetrically arranged on the opposite side surfaces of the scanning tentacle 2 along the extension and contraction direction of the scanning tentacle 2. Correspondingly, two baffles 13 are constructed in the shell 1. The two elastic members 8 are installed one by one between the two baffles 13 and the two limit platforms 22. The extension and contraction direction of each elastic member 8 is consistent with the extension and contraction direction of the scanning tentacle 2, so that the two elastic members 8 can jointly drive the scanning tentacle 2 to extend and contract, prevent the scanning tentacle 2 from tilting to one side, and improve the flexibility of the extension and contraction of the scanning tentacle 2.

[0061] like Figure 3 As shown, the limiting platform 22 is provided with a limiting post 221, and the elastic member 8 is mounted on the limiting post 221. The limiting post 221 guides the elastic member 8 to extend and retract in a direction consistent with the extension and retraction direction of the scanning contact 2, thereby improving the flexibility of the scanning contact 2. It will be understood that when the dictionary pen is in the non-scanning state, there is a gap between the limiting post 221 and the baffle 13.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A dictionary pen, characterized in that: include: A housing, a scanning contact foot, a limiting member, and an operating key, wherein the scanning contact foot is retractably mounted on the housing along the length direction of the dictionary pen, the limiting member is movably disposed in the housing, and the operating key is slidably mounted on the housing; When the operation key moves to the first position relative to the housing, the limiting member is connected to the scanning contact foot, so that the position of the scanning contact foot relative to the housing is fixed; When the operation key moves to the second position relative to the housing, the limiting member is separated from the scanning contact pin, so that the scanning contact pin can move telescopically relative to the housing.

2. The dictionary pen according to claim 1, characterized in that: An elastic reset member is installed between the limiting member and the housing, and the extension direction of the elastic reset member is consistent with the moving direction of the limiting member. The housing is provided with a strip-shaped hole, one side of the limiting member is provided with a receiving groove, and the other side is provided with a limiting pin, the operating key can be slidably installed in the strip-shaped hole and the inner end of the operating key is accommodated in the receiving groove; One side wall of the accommodating groove is an inclined surface. As the operating key slides from the second position to the first position relative to the shell, the inner end of the operating key pushes against the inclined surface, so that the limit pin is inserted into the scanning contact foot; as the operating key slides from the first position to the second position relative to the shell, the elastic reset member drives the limit member to reset, so that the limit pin is disengaged from the scanning contact foot.

3. The dictionary pen according to claim 2, characterized in that: A mounting platform is provided in the shell, the elastic reset member and the limiting pin are located on the same side, one end of the elastic reset member abuts against the limiting member, and the other end abuts against the mounting platform.

4. The dictionary pen according to claim 3, characterized in that: There are multiple elastic return members, and the multiple elastic return members are arranged in parallel; And / or, the limiting member is provided with a mounting post, and the elastic reset member is sleeved on the mounting post.

5. The dictionary pen according to claim 1, characterized in that: A first pressure sensing element, a processor and a power supply are installed in the housing; The power supply is electrically connected to the first pressure sensing element and the processor respectively, and the first pressure sensing element and the processor are electrically connected. The first pressure sensing element generates a first trigger signal when the operation key moves to a first position relative to the shell and generates a second trigger signal when the operation key moves to a second position relative to the shell. The processor controls the power supply to be turned off based on the first trigger signal and controls the power supply to be turned on based on the second trigger signal.

6. The dictionary pen according to claim 5, characterized in that: It also includes a scanning component, a second pressure-sensing element is installed in the shell, the second pressure-sensing element and the scanning component are electrically connected to the processor respectively, when the operation key moves to the second position relative to the shell, the scanning contact triggers the second pressure-sensing element when it is retracted into the shell, and the processor turns on or off the scanning component based on the triggering state of the second pressure-sensing element.

7. The dictionary pen according to claim 6, characterized in that: The scanning contact foot is fixedly connected to the scanning component.

8. The dictionary pen according to claim 1, characterized in that: It also includes an elastic member, the scanning contact foot is protruding with a limit platform, a baffle is constructed in the shell, the limit platform is arranged opposite to the baffle, one end of the elastic member is against the limit platform, and the other end is against the baffle.

9. The dictionary pen according to claim 8, characterized in that: A limit plate is constructed in the shell, and when the dictionary pen is in a non-scanning state, the limit platform abuts against the limit plate.

10. The dictionary pen according to claim 8, characterized in that: Limiting platforms are respectively provided on opposite sides of the scanning contact foot, and each of the limiting platforms is installed with the elastic member.

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