Handheld ink-jet printer

Abstract

The utility model relates to the technical field of printing equipment, in particular to a handheld ink-jet printer, which comprises a printer body, a functional assembly and a clamping assembly, the clamping assembly comprises a first buckle, the first buckle is elastically assembled on one of the printer body and the functional assembly, and the first buckle is clamped with or separated from the other one of the printer body and the functional assembly; wherein the first buckle can be separated from the other one of the machine body and the functional assembly under the action of external force, and when the external force applied to the first buckle is removed, the first buckle can be reset under the action of elasticity. According to the handheld ink-jet printer, the functions of the handheld ink-jet printer can be expanded by replacing different functional assemblies, and the operability and efficiency of disassembly and assembly of the functional assemblies can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a handheld inkjet printer. Background Art

[0002] Handheld inkjet printers are widely used to print barcodes, QR codes, and other items on packaging. They consist of a printer body, ink cartridges, and functional components mounted within the body. These components include, but are not limited to, color mark sensors and barcode scanning components. To expand the functionality of handheld inkjet printers, they are typically configured with multiple functional components, which are then selected and assembled on the printer body as needed.

[0003] However, the handheld inkjet printers provided by the related art are difficult to replace functional components conveniently and difficult to improve efficiency. Utility Model Content

[0004] The purpose of the present invention includes providing a handheld inkjet printer, which can expand the functions of the handheld inkjet printer by replacing different functional components, and can ensure the ease of operation and efficiency of disassembly and assembly of the functional components.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] The utility model provides a handheld inkjet printer, comprising: a body, a functional component and a clamping component, wherein the clamping component comprises a first clamping buckle, the first clamping buckle is elastically assembled on one of the body and the functional component, and the first clamping buckle is clamped or separated from the other of the body and the functional component; wherein,

[0007] The first buckle can be separated from the other of the body and the functional component under the action of an external force. When the external force applied to the first buckle is withdrawn, the first buckle can be reset under the action of elasticity.

[0008] In an optional embodiment, the snap-fit ​​assembly further includes a first elastic member, and the first buckle is assembled to one of the body and the functional assembly via the first elastic member.

[0009] In an optional embodiment, one of the functional component and the body is provided with a positioning groove, and the first elastic member is inserted into the positioning groove.

[0010] In an optional embodiment, one of the functional component and the first buckle is provided with one of a guide groove and a guide rib, and the other of the functional component and the first buckle is provided with the other of the guide groove and the guide rib, and the guide rib is in sliding engagement with the guide groove; or,

[0011] One of the body and the first buckle is provided with one of the guide groove and the guide rib, and the other of the body and the first buckle is provided with the other of the guide groove and the guide rib, and the guide rib is in sliding fit with the guide groove.

[0012] In an optional embodiment, the functional component includes a housing and a functional module disposed on the housing; and the first buckle is disposed on the housing.

[0013] In an optional embodiment, the housing is provided with a first avoidance hole, and a portion of the first buckle extends out from the first avoidance hole.

[0014] In an optional embodiment, the clamping portion of the body or the functional component is provided with a clamping slot, and the first buckle is clamped with the clamping portion and extends into the clamping slot.

[0015] In an optional embodiment, the functional component has a first end and a second end that are relatively distributed, the first end of the functional component is plugged into the body, and the first buckle is elastically assembled to the body or the second end of the functional component.

[0016] In an optional embodiment, the functional component is provided with a first conductive member, and the body is provided with a second conductive member. The first conductive member and the second conductive member are electrically connected or separated, and the electrical connection includes abutment or insertion.

[0017] In an optional embodiment, one of the first conductive member and the second conductive member is a metal contact, and the other of the first conductive member and the second conductive member is a PIN pin.

[0018] The beneficial effects of the handheld inkjet printer of the embodiment of the utility model include:

[0019] When the functional component needs to be replaced, the first buckle can be pressed to separate the first buckle from the fuselage or the functional component, so that the functional component can be removed from the fuselage. The elastically assembled first buckle ensures the ease of disassembly of the functional component.

[0020] Moreover, when the functional component is assembled to the fuselage, the first buckle can be reliably restored to a state of being engaged with the fuselage or the functional component under the action of elasticity, thereby ensuring the stability and ease of operation of the functional component when assembled to the fuselage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1This is a block diagram of the composition of the handheld inkjet printer in the embodiment of the present utility model;

[0023] Figure 2 This is a structural diagram of the handheld inkjet printer when the functional components in the embodiment of the present utility model are not fully assembled;

[0024] Figure 3 Schematic diagram of a handheld inkjet printer equipped with four functional components in an embodiment of the present invention;

[0025] Figure 4 This is a structural diagram of a handheld inkjet printer in an embodiment of the present utility model;

[0026] Figure 5 for Figure 4 Cross-sectional view in the AA direction;

[0027] Figure 6 for Figure 5 Enlarged view of position VI in the middle;

[0028] Figure 7 This is a structural diagram of the first housing and the clamping assembly in an embodiment of the present utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the functional components in the embodiment of the present utility model from a first viewing angle;

[0030] Figure 9 This is a schematic diagram of the exploded structure of the first housing and the clamping assembly in an embodiment of the present utility model;

[0031] Figure 10 This is a structural diagram of the clamping assembly in an embodiment of the present utility model;

[0032] Figure 11 This is a schematic diagram of the structure of the functional components in the embodiment of the present utility model at a second viewing angle;

[0033] Figure 12 This is a schematic diagram of the partial structure of the handheld inkjet printer in an embodiment of the present invention when no functional components are assembled.

[0034] Icon: 010-handheld inkjet printer; 100-body; 101-second conductive part; 102-clamping part; 103-card slot; 200-functional component; 201-first conductive part; 210-clamping component; 211-first buckle; 212-first elastic part; 220-housing; 221-first shell; 222-second shell; 223-first avoidance hole; 224-guide groove; 225-guide rib; 226-positioning groove; 227-second avoidance hole; 610-controller; 611-display; 612-battery; 613-switch module; 614-printer logic drive module; 615-inkjet print head module; 616-positioning module; 617-print button. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in 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.

[0036] 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 intended to fall within the scope of protection of the present invention.

[0037] 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.

[0038] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0039] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0040] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0041] Handheld inkjet printers are widely used to print barcodes, QR codes, and other items on packaging. To expand the functionality of handheld inkjet printers, related art typically equips them with multiple functional components, which are then assembled into the printer body based on the needs. However, these handheld inkjet printers offer difficulties in easily replacing functional components, making it difficult to improve efficiency.

[0042] This embodiment provides a handheld inkjet printer that can expand the functions of the handheld inkjet printer by replacing different functional components, and can ensure the ease and efficiency of disassembly and assembly of the functional components. The handheld inkjet printer of this embodiment will be described in detail below with reference to the accompanying drawings.

[0043] Please refer to Figure 1 and Figure 2 The handheld inkjet printer 010 includes a body 100, and a controller 610, a display 611, a battery 612, a switch module 613, a nozzle logic drive module 614, an inkjet print head module 615, and a positioning module 616 disposed on the body 100; wherein the display 611, the battery 612, the switch module 613, the nozzle logic drive module 614, and the positioning module 616 are all electrically connected to the controller 610; the battery 612 is used to power the entire machine; the display 611 is used to display printing-related information, etc.; the switch module 613 is used to control the power on and off (i.e., turning the handheld inkjet printer 010 on and off) ; The inkjet print head module 615 is electrically connected to the nozzle logic drive module 614, and the nozzle logic drive module 614 drives the movement of the inkjet print head module 615 under the control of the controller 610, so as to use the inkjet print head module 615 to print out the corresponding pattern; the positioning module 616 can be used to detect the position, displacement and other changes of the inkjet print head module 615, so that when printing, the positioning module 616 sends the detected displacement signal to the controller 610, and then the controller 610 controls the nozzle logic drive module 614 to drive the inkjet print head module 615 to print, thereby achieving accurate printing.

[0044] Optionally, the positioning module 616 may be a magnetoelectric encoder, a photoelectric sensor, etc., which is not specifically limited here.

[0045] Optionally, the body 100 of the handheld inkjet printer 010 is further provided with a print button 617, which is electrically connected to the controller 610. Pressing the print button 617 can trigger a corresponding function, for example: triggering the inkjet print head module 615 to print.

[0046] Please refer to Figure 2The handheld inkjet printer 010 of this embodiment further includes a functional component 200, which is configured to be detachably assembled on the body 100; in this way, the functional components 200 with different functions can be disassembled and assembled as needed to expand the functions of the handheld inkjet printer 010.

[0047] It should be noted that the number of functional components 200 configured for a handheld inkjet printer 010 can be selected as needed. Different numbers of functional components 200 can bring different numbers of functional expansions to the handheld inkjet printer 010. Figure 1 and Figure 3For example, a handheld inkjet printer 010 can be equipped with four functional components 200, which can be detachably assembled on the body 100. The four functional components 200 are respectively a code scanning component, a built-in electric eye component, a red light roller component and a color mark sensor; wherein, 1. After the code scanning component is installed on the body 100, pressing the print button 617 twice in a row or long pressing the print button 617 for a set time (for example, 5s, 8s, etc.) can trigger the code scanning function of the code scanning component. At the same time, the display 611 will show the picture taken by the camera of the code scanning component. After that, the scanning terminal of the code scanning component can be used to aim at the barcode or QR code. 1. After the recognition is successful, the code scanning component will be automatically closed, and the scanned string information will be displayed on the print editing interface of the display 611 through the controller 610. Then, the print button 617 can be pressed to use the inkjet print head module 615 to smoothly move and print out the pattern on the printing medium or object; 2. After the built-in electric eye component is installed on the body 100, the content to be printed can be edited in the print editing interface on the display 611. After pressing the print button on the user interface (UI) on the display 611, the built-in electric eye component can be used to trigger the inkjet print head module 615 to print directly without pressing the print button 617 separately; 3. The red light roller assembly After the component is installed on the body 100, the content to be printed can be input in the print editing interface displayed on the display 611, and then the print button on the user interface (UI) on the display 611 is pressed. At this time, the controller 610 performs data rendering, data matching, and sends the print data, and at the same time sends a red light opening instruction to the red light roller assembly. Then, the print button 617 is pressed to use the inkjet print head module 615 to smoothly move and print the image on the printing medium or object. During the printing process, the red light roller assembly emits at least two red lights distributed at intervals according to the size designed by the controller 610, so as to use the red light emitted by the red light roller assembly to guide the printing area, which plays a guiding and auxiliary role. The function of printing; 4. After the color mark sensor is installed on the body 100, the color mark sensor can be used to sense the color that needs to be triggered to print, and the corresponding information can be sent to the controller 610, so that the controller 610 can send the corresponding control information to the positioning module 616. At the same time, the content to be printed can be input in the print editing interface displayed on the display 611, and the print button on the user interface (UI) on the display 611 can be pressed. The controller 610 renders the data, matches the data, and sends the print data. When the positioning module 616 senses that the inkjet print head module 615 moves to the color area sensed and recorded by the color mark sensor, printing will be triggered.

[0048] In this embodiment, the functional component 200 is engaged with the body 100 by snapping, thereby ensuring the ease of assembly and disassembly of the functional component 200 from the body 100 and the stability of the assembly of the functional component 200 to the body 100.

[0049] For further information, please refer to Figure 2 、 Figure 4 、 Figure 5 and Figure 6 The functional component 200 has a first end and a second end that are relatively distributed. The first end of the functional component 200 is plugged into the body 100, and the second end of the functional component 200 is provided with a snap-fit ​​assembly 210. The snap-fit ​​assembly 210 includes a first snap 211, which is elastically assembled to the second end of the functional component 200 and snapped into or out of the body 100. The two ends of the functional component 200 are respectively configured to be plugged into and snapped into the body 100. On the one hand, this ensures the easy assembly and disassembly of the functional component 200. During assembly, the first end of the functional component 200 can be first plugged into the body 100, and then the second end of the functional component 200 can be snapped into the body 100. During disassembly, the second end of the functional component 200 can be first separated from the body 100, and then the first end of the functional component 200 can be separated from the body 100. On the other hand, this ensures the stability of the functional component 200 assembled to the body 100.

[0050] Furthermore, the snap-fit ​​portion 102 of the body 100 is provided with a snap-fit ​​slot 103 , and the first buckle 211 is snap-fitted with the snap-fit ​​portion 102 and extends into the snap-fit ​​slot 103 ; in this way, the stability of the detachable assembly of the functional component 200 and the body 100 can be further ensured.

[0051] Of course, in other embodiments, the first end of the functional component 200 may also be snap-connected to the body 100 .

[0052] In this embodiment, please refer to Figure 7 The snap-fit ​​assembly 210 further includes a first elastic member 212, through which the first snap 211 is assembled to the second end of the functional assembly 200. When the first snap 211 is separated from the body 100 under the action of an external force, the first elastic member 212 undergoes elastic deformation. When the first snap 211 is no longer affected by the external force, the first elastic member 212 returns to its original position under its own elastic action, thereby driving the first snap 211 to return to its original position. The provision of the first elastic member 212 improves the stability of the snap-fit ​​connection between the functional assembly 200 and the body 100, and also ensures ease of operation when separating the first snap 211 from the body 100.

[0053] For further information, please refer to Figure 8 The functional component 200 includes a shell 220 and a functional module (not shown in the figure). The functional module is assembled on the shell 220, and the first buckle 211 is set on the shell 220 through the first elastic member 212. With such a setting, when the functional component 200 is disassembled and assembled, it will not cause adverse effects on the functional module, thereby ensuring the reliability of the function of the functional module.

[0054] Alternatively, see Figure 8The outer shell 220 includes a first shell 221 and a second shell 222 that are buckled and connected to each other. The ends of the first shell 221 and the second shell 222 are spliced ​​to form a first avoidance hole 223. The first clip 211 is assembled on the first shell 221 through the first elastic member 212, and part of the first clip 211 extends from the first avoidance hole 223; when the functional component 200 needs to be removed from the fuselage 100, the first clip 211 can be pressed with force at the part of the first clip 211 extending from the first avoidance hole 223 to separate it from the fuselage 100, and the functional component 200 can be removed, ensuring the ease of disassembly of the functional component 200.

[0055] It should be noted that the functional module can be assembled between the first shell 221 and the second shell 222, or assembled in the first shell 221 or the second shell 222, which is not specifically limited here.

[0056] The connection method between the first shell 221 and the second shell 222 includes, but is not limited to, snap connection and connection through fasteners such as bolts.

[0057] Alternatively, see Figure 9 and Figure 10 The first buckle 211 is provided with a guide groove 224, and the first shell 221 is provided with a guide rib 225. The guide rib 225 and the guide groove 224 are slidably plugged into each other. When the functional component 200 needs to be disassembled, an external force is applied to press the first buckle 211. Through the sliding cooperation between the guide rib 225 and the guide groove 224, the stability of the moving path of the first buckle 211 can be ensured, so as to ensure that the first buckle 211 is smoothly separated from the fuselage 100, and when the external force applied to the first buckle 211 is removed, the first buckle 211 can be smoothly reset under the action of the first elastic member 212 without being easily deviated, thereby ensuring the stability of the first buckle 211 when it is reset to the clamping connection with the fuselage 100, thereby ensuring the stability of the functional component 200 assembled on the fuselage 100.

[0058] Of course, in other embodiments, the first shell 221 is provided with a guide groove 224 , and the first buckle 211 is provided with a guide rib 225 , and the guide rib 225 and the guide groove 224 are slidably plugged into each other.

[0059] The number of guide grooves 224 and guide ribs 225 can be selected as needed. In this embodiment, the first buckle 211 is provided with two spaced-apart guide grooves 224, and the first housing 221 is provided with two guide ribs 225. The guide ribs 225 are plugged into and engage with the guide grooves 224 in a one-to-one correspondence. Of course, in other embodiments, the number of guide grooves 224 and guide ribs 225 can be one, three, or the like, and is not specifically limited here.

[0060] Alternatively, see Figure 7 and Figure 9 The first shell 221 is also provided with a positioning groove 226, and the first elastic member 212 is inserted into the positioning groove 226; in this way, when the first elastic member 212 is compressed or restored, the deformation of the first elastic member 212 can be improved, which causes the elastic action of the first elastic member 212 to be difficult to stably act on the first buckle 211 and the problem of stable reset of the first buckle 211.

[0061] The number of first elastic members 212 and the number of positioning slots 226 can be selected as needed. For example, the first housing 221 is provided with two positioning slots 226, each of which is provided with a first elastic member 212, and both first elastic members 212 are elastically engaged with the first buckle 211. Of course, in other embodiments, the number of positioning slots 226 and first elastic members 212 can be one, three, etc., and are not specifically limited here.

[0062] The first elastic member 212 may be an elastic rubber column, a spring, a torsion spring, etc., which is not specifically limited here.

[0063] It should be understood that in other embodiments, the snap-fit ​​assembly 210 may also include only the first snap 211. The first snap 211 may be made of a material that is elastic itself so that it can be directly elastically assembled on the functional component 200. The above-mentioned elastic material may refer to elastic metal, plastic, etc., and the first snap 211 may be a spring with a snap-fit ​​structure, etc.

[0064] In other embodiments, the first end of the functional component 200 can also be snapped to the body 100 through the snap-on component 210, or other positions between the first end and the second end of the functional component 200 can also be snapped to the body 100, etc., which are not specifically limited here.

[0065] Of course, in other embodiments, the first buckle 211 can also be elastically mounted on the body 100 and snapped into or out of the second end of the functional assembly 200. One of the guide groove 224 and the guide rib 225 is provided on the body 100, while the other is provided on the first buckle 211. The body 100 may also be provided with a positioning groove 226. Optionally, the snapping portion 102 of the first housing 221 or the second housing 222 of the functional assembly 200 is provided with a snapping groove 103 for accommodating the first buckle 211.

[0066] In order to ensure that the functional component 200 is assembled on the body 100, the electrical connection between the functional component 200 and the controller 610 can be achieved quickly, efficiently and conveniently; Figure 11 and Figure 12In this embodiment, the functional component 200 is provided with a first conductive member 201, and the body 100 is provided with a second conductive member 101. The first conductive member 201 is electrically connected to the functional module, and the second conductive member 101 is electrically connected to the controller 610. The first conductive member 201 and the second conductive member 101 are connected or separated, that is, when the functional component 200 is assembled on the body 100, the first conductive member 201 and the second conductive member 101 can be directly aligned to achieve electrical connection, so that the functional module of the functional component 200 can be electrically connected to the controller 610.

[0067] Optionally, the first conductive part 201 is a metal contact electrically connected to the functional module, and the metal contact is exposed from the second avoidance hole 227 set in the second shell 222; the second conductive part 101 is a PIN needle electrically connected to the controller 610, and the PIN needle is exposed to the body 100; when the functional component 200 is assembled on the body 100, the PIN needle contacts (abuts) the metal contact to achieve electrical connection.

[0068] Of course, in other embodiments, the first conductive member 201 may be a PIN, and the second conductive member 101 may be a metal contact. In other embodiments, one of the first conductive member 201 and the second conductive member 101 may be a male conductive terminal, and the other may be a female conductive terminal, and the male conductive terminal may be plugged into or detached from the female conductive terminal.

[0069] When the handheld inkjet printer 010 of this embodiment is in use, the functional component 200 to be used can be selected, and the functional component 200 can be assembled on the body 100, and the switch module 613 can be used to turn on the printer (for example: the switch module 613 includes a switch button, and long pressing the switch button for 3 seconds can turn on the printer. If the switch button is long pressed for 3 seconds in the power-on state, the display 611 will pop up a window to prompt whether to shut down the printer, so that manual confirmation of shutdown can be made, or long pressing the switch button for 5 seconds in the power-on state can directly shut down the printer).

[0070] It should be noted that the functional component 200 can be assembled before or after powering on.

[0071] Before inkjet printing, you can add and edit the content to be printed (for example: text, pictures, QR codes, barcodes, numbers, time, databases, etc.) in the print editing area of ​​the display 611. After editing the content, press the print button on the user interface (UI); then, the controller 610 starts to render the print content, match the print parameters, generate print data and send it to the nozzle logic drive module 614, waiting for the nozzle logic drive module 614 to control the inkjet print head module 615 to print (for example: wait for the user to press the print button 617 on the body 100 before starting printing).

[0072] In summary, the handheld inkjet printer 010 of the present invention can expand the functions of the handheld inkjet printer 010 by disassembling and assembling different functional components 200, and ensures that the functional components 200 are easy to disassemble and assemble.

[0073] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A handheld inkjet printer, characterized in that: include: A body (100), a functional component (200) and a snap-on component (210), wherein the snap-on component (210) comprises a first snap (211), wherein the first snap (211) is elastically assembled on one of the body (100) and the functional component (200), and the first snap (211) is snap-on or detachable with the other of the body (100) and the functional component (200); wherein, The first buckle (211) can be separated from the other of the body (100) and the functional component (200) under the action of an external force, and when the external force applied to the first buckle (211) is removed, the first buckle (211) can be reset under the action of elasticity.

2. The handheld inkjet printer according to claim 1, characterized in that: The functional component (200) has a first end and a second end that are relatively distributed, the first end of the functional component (200) is plugged into and matched with the body (100), and the first buckle (211) is elastically assembled on the body (100) or the second end of the functional component (200).

3. The handheld inkjet printer according to claim 1, characterized in that: The functional component (200) is provided with a first conductive member (201), and the body (100) is provided with a second conductive member (101). The first conductive member (201) and the second conductive member (101) are electrically connected or separated, and the electrical connection includes abutment or plugging.

4. The handheld inkjet printer according to claim 3, characterized in that: One of the first conductive member (201) and the second conductive member (101) is a metal contact, and the other of the first conductive member (201) and the second conductive member (101) is a PIN needle.

5. The handheld inkjet printer according to claim 1, characterized in that: The snap-fit ​​assembly (210) further comprises a first elastic member (212), and the first buckle (211) is assembled to one of the body (100) and the functional assembly (200) via the first elastic member (212).

6. The handheld inkjet printer according to claim 5, characterized in that: One of the functional component (200) and the body (100) is provided with a positioning groove (226), and the first elastic member (212) is inserted into the positioning groove (226).

7. The handheld inkjet printer according to claim 1, characterized in that: One of the functional component (200) and the first buckle (211) is provided with one of a guide groove (224) and a guide rib (225), and the other of the functional component (200) and the first buckle (211) is provided with the other of the guide groove (224) and the guide rib (225), and the guide rib (225) is in sliding engagement with the guide groove (224); or, One of the body (100) and the first buckle (211) is provided with one of a guide groove (224) and a guide rib (225), and the other of the body (100) and the first buckle (211) is provided with the other of the guide groove (224) and the guide rib (225), and the guide rib (225) is slidably matched with the guide groove (224).

8. The handheld inkjet printer according to claim 1, characterized in that: The functional component (200) comprises a housing (220) and a functional module arranged on the housing (220); the first buckle (211) is arranged on the housing (220).

9. The handheld inkjet printer according to claim 8, characterized in that: The housing (220) is provided with a first avoidance hole (223), and a portion of the first buckle (211) extends out from the first avoidance hole (223).

10. The handheld inkjet printer according to claim 1, characterized in that: The clamping portion (102) of the body (100) or the functional component (200) is provided with a clamping slot (103), and the first clamping buckle (211) is clamped with the clamping portion (102) and extends into the clamping slot (103).

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