Label printer

Abstract

The utility model relates to the technical field of printing equipment, and discloses a label printer, which comprises a main machine body, one side of the main machine body is provided with a colored tape box cabin, and the other opposite side of the main machine body is provided with a battery cabin; the first cover body is detachably connected with the main machine body, and the first cover body is suitable for covering the ribbon cartridge bin; and the second cover body is detachably connected with the main machine body, and the second cover body is suitable for covering the battery compartment. According to the label printer provided by the utility model, the first cover body and the second cover body are respectively and detachably connected with the main machine body, and when the ribbon cartridge bin and the battery bin need to be opened, the first cover body and the second cover body can be respectively detached from the main machine body, so that the ribbon cartridge bin and the battery bin are completely exposed; and the first cover body and the second cover body are prevented from being connected to the host body to influence user operation.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically to a label printer. Background Technology

[0002] Label printers are small, portable, and easy-to-use printing devices widely used in daily life and industrial production. A label printer typically consists of a main body and a cover assembly. The main body houses components such as the ribbon cartridge, circuit board, and battery. The cover assembly is attached to the main body to cover and protect these components. Since the ribbon cartridge and battery are consumables, and there are various types of ribbon cartridges, such as those with different colors and / or different widths, it is often necessary to open the cover assembly to replace the battery or ribbon cartridge as needed. However, the cover is usually hinged to the main body. The opening angle of this hinged connection is often limited by the hinge structure, or to prevent the cover from colliding with the main body's structure during opening and closing. In some cases, this limitation may prevent the cover from meeting the user's needs for a wide opening range. Utility Model Content

[0003] In view of this, the present invention provides a label printer to solve the problem that when the cover is hinged to the main body, the opening and closing angle of the cover is limited, which cannot meet the user's needs for the opening and closing range of the cover.

[0004] This utility model provides a label printer, comprising:

[0005] The main body has a ribbon cartridge compartment at the top and a battery compartment at the bottom.

[0006] The first cover is detachably connected to the main body and is suitable for covering the ribbon cartridge compartment;

[0007] The second cover is detachably connected to the main body and is suitable for covering the battery compartment.

[0008] Beneficial effects: The first and second covers are detachably connected to the main body. When it is necessary to open the ribbon cartridge compartment and the battery compartment, the first and second covers can be removed from the main body to fully expose the ribbon cartridge compartment and the battery compartment, thus avoiding the first and second covers being connected to the main body and affecting the user's operation.

[0009] In one optional embodiment, the label printer further includes a snap-fit ​​structure; a first cover and a second cover are respectively connected to the main body via two snap-fit ​​structures; the snap-fit ​​structure includes a first snap-fit ​​pair and a second snap-fit ​​pair; the first cover and the second cover are respectively snapped to one side of the main body via two second snap-fit ​​pairs; the first cover and the second cover are respectively snapped to the other side of the main body via two first snap-fit ​​pairs; when the first snap-fit ​​pair releases the snap-fit ​​restriction between the first cover and the second cover and the main body, the second cover and the first cover can rotate relative to the main body via the guide of the second snap-fit ​​pair.

[0010] In one optional embodiment, the first snap-fit ​​pair includes a first snap fastener and a first slot. The first snap fastener is provided with a wedge-shaped protrusion, and the wedge-shaped protrusion is provided with a guide surface. The wedge-shaped protrusion is inserted into the first slot through the guide surface.

[0011] In one alternative embodiment, a mark is provided on the first cover and / or the second cover and / or the outer wall of the main body corresponding to the first buckle.

[0012] Beneficial effect: By setting a mark to indicate the position of the first buckle, the user can easily disengage the first buckle from the first slot by pressing the marked position, which helps to improve operating efficiency.

[0013] In one optional embodiment, the second snap-fit ​​includes a second snap fastener and a second snap groove. The second snap fastener has a protrusion, and the second snap fastener is hooked into the second snap groove through the protrusion.

[0014] In one alternative embodiment, the second slot includes a limiting portion, and the second latching pair also includes a relief opening, wherein the protrusion is adapted to extend into the second slot through the relief opening and abut against the limiting portion.

[0015] In one alternative embodiment, a printhead assembly is provided inside the ribbon cartridge, a rubber roller assembly is movably disposed on the main body, and a pushing part is provided on the first cover, which is adapted to push the rubber roller assembly closer to the printhead assembly.

[0016] In one alternative embodiment, the label printer further includes a power switch hole formed by splicing a notch on the main body and the second cover.

[0017] Beneficial effect: By making the power switch hole consist of two separate notches joined together, and these two notches are respectively set on the second cover and the main body, it is easier for users to quickly identify the installation orientation of the second cover when it is installed.

[0018] In one alternative implementation, the label printer further includes a power socket formed by splicing a notch on the main body and the second cover.

[0019] Beneficial effect: By making the power socket consist of two separate notches joined together, and these two notches are respectively located on the second cover and the main body, it is easier for users to quickly identify the installation orientation of the second cover when it is installed.

[0020] In one alternative embodiment, the battery compartment is used to install a battery, and the second cover has an abutment portion on the side facing the battery compartment, the abutment portion being adapted to limit the battery on the side away from the battery compartment.

[0021] Beneficial effects: By setting up the abutment part, the installation stability of the battery in the battery compartment is enhanced, avoiding poor contact between the battery and the connector in the battery compartment during the movement of the label printer.

[0022] In one alternative embodiment, the battery compartment is used to install a battery, and the second cover has an abutment portion on the side facing the battery compartment, the abutment portion being adapted to limit the battery on the side away from the battery compartment.

[0023] Beneficial effects: By setting up the abutment part, the installation stability of the battery in the battery compartment is enhanced, avoiding poor contact between the battery and the connector in the battery compartment during the movement of the label printer. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is an exploded view of a label printer according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0027] Figure 3 for Figure 1 Schematic diagram of the structure at point B;

[0028] Figure 4 for Figure 1 The diagram shown is a structural schematic of the main body.

[0029] Figure 5 for Figure 4 Cross-sectional view of the second buckle and second slot engaged at point C.

[0030] Figure 6 for Figure 4 The side view of the main body shown;

[0031] Figure 7 for Figure 4 An exploded view of the other side of the main body is shown;

[0032] Figure 8 for Figure 1 The diagram shows the structure of the second cover.

[0033] Figure 9 for Figure 1 The diagram shows the structure of the push unit.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Main body; 101. Ribbon cartridge compartment; 102. Battery compartment; 103. Clearance opening; 11. Paper output outlet; 2. First cover; 21. Second latch; 211. Protrusion; 22. Observation window; 3. Second cover; 31. First latch; 32. Mark; 33. Abutment part; 34. Wedge-shaped protrusion; 341. Guide surface; 4. Battery; 5. Power switch; 51. Power switch hole; 6. Status indicator light; 7. Power socket; 8. Circuit board; 9. Cutter assembly; 12. Glue roller assembly; 121. Rotary shaft; 13. Printhead assembly; 14. Cutout area; 15. Pushing part; 151. Inclined surface; 16. Limiting part. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] The following is combined with Figures 1 to 9 The following describes embodiments of the present invention.

[0038] According to an embodiment of the present invention, a label printer is provided, comprising:

[0039] The main body 1 has a ribbon cartridge compartment 101 at its top and a battery compartment 102 at its bottom.

[0040] The first cover 2 is detachably connected to the main body 1, and the first cover 2 is suitable for covering the ribbon box compartment 101;

[0041] The second cover 3 is detachably connected to the main body 1 and is suitable for covering the battery compartment 102.

[0042] In the label printer provided in this embodiment, the first cover 2 and the second cover 3 are detachably connected to the main body 1. When it is necessary to open the ribbon cartridge compartment 101 and the battery compartment 102, the first cover 2 and the second cover 3 can be removed from the main body 1, thereby fully exposing the ribbon cartridge compartment 101 and the battery compartment 102, and avoiding the first cover 2 and the second cover 3 being connected to the main body 1 and affecting the user's operation.

[0043] Specifically, the ribbon cartridge is installed in the ribbon cartridge compartment 101, and the battery 4 is installed in the battery compartment 102, facilitating efficient, fast, and stable installation of the ribbon cartridge and battery 4. At least one battery 4 is used, and the size of the battery compartment 102 is adapted to the number of batteries 4. The detachable connection between the first cover 2 and the second cover 3 and the main body 1 includes snap-fit ​​connections, magnetic connections, etc.

[0044] In one embodiment, combined Figures 1 to 5 As shown, the label printer also includes a snap-fit ​​structure; the first cover 2 and the second cover 3 are respectively connected to the main body 1 via two snap-fit ​​structures; the snap-fit ​​structure includes a first snap-fit ​​pair and a second snap-fit ​​pair; the first cover 2 and the second cover 3 are respectively snapped to one side of the main body 1 via two second snap-fit ​​pairs; the first cover 2 and the second cover 3 are respectively snapped to the other side of the main body 1 via two first snap-fit ​​pairs; when the first snap-fit ​​pair releases the snap-fit ​​restriction between the first cover 2 and the second cover 3 and the main body 1, the second cover 3 and the first cover 2 can rotate relative to the main body 1 via the guiding energy of the second snap-fit ​​pair.

[0045] Specifically, the first cover 2 and the second cover 3 are respectively snapped together with the main body 1. A first snap-fit ​​pair and a second snap-fit ​​pair are provided between the first cover 2 and the main body 1 and between the second cover 3 and the main body 1, and the first snap-fit ​​pair and the second snap-fit ​​pair are respectively arranged opposite to each other at the top and bottom of the main body 1.

[0046] In one embodiment, combined Figures 1 to 5 As shown, the first snap-fit ​​pair includes a first snap-fit ​​31 and a first snap-fit ​​groove. The first snap-fit ​​31 is provided with a wedge-shaped protrusion 34, and the wedge-shaped protrusion 34 is provided with a guide surface 341. The wedge-shaped protrusion 34 is inserted into the first snap-fit ​​groove through the guide surface 341.

[0047] Specifically, the guide surface 341 can slide relative to the first slot to guide the wedge-shaped protrusion 34 to slide into the first slot. During the process of inserting the wedge-shaped protrusion 34 into the first slot, the first slot slides against the guide surface 341 and presses the guide surface 341 to deform the main body of the first buckle 31, causing the wedge-shaped protrusion 34 to move to a position where it can be inserted into the first slot, until the first slot and the guide surface 341 no longer contact each other, and the main body of the first buckle 31 returns to its initial state, thereby allowing the wedge-shaped protrusion 34 to be inserted into the first slot.

[0048] In one embodiment, combined Figures 1 to 3 As shown, a mark 32 is provided on the outer wall of the first cover 2 and / or the second cover 3 and / or the main body 1 corresponding to the first buckle 31.

[0049] The label printer provided in this embodiment uses a mark 32 to indicate the position of the first clip 31 to the user, so that the user can press the mark 32 to disengage the first clip 31 from the first slot, which helps to improve the efficiency of the disassembly operation.

[0050] Specifically, the marking 32 can take the form of bumps, grooves, stickers, or marking areas of different colors.

[0051] In one embodiment, combined Figure 1 , Figure 4 , Figure 5 and Figure 8 As shown, the second snap fastener includes a second snap fastener 21 and a second snap slot. The second snap fastener 21 is provided with a protrusion 211, and the second snap fastener 21 is hooked into the second snap slot through the protrusion 211.

[0052] Specifically, the second buckle 21 has a protrusion 211 at one end near the second slot. The protrusion 211 is used to extend into the second slot so that the second buckle 21 and the second slot form a hook connection. Preferably, the surface of the protrusion 211 is arc-shaped to facilitate the extension of the protrusion 211 into the second slot. After the wedge-shaped protrusion 34 disengages from the first slot, that is, after the first latching pair is released, the first cover 2 or the second cover 3 can be rotated at a certain angle relative to the main body 1 through the second latching pair, thereby exposing the ribbon cartridge compartment 101 or the battery compartment 102; and furthermore, the second buckle 21 can be disengaged from the second slot, thereby removing the first cover 2 or the second cover 3 from the main body 1.

[0053] As a feasible implementation method, combined with Figure 1 As shown, the first buckle 31 and the second buckle 21 are disposed on the first cover 2 and the second cover 3. The main body 1 is provided with a first slot corresponding to the first buckle 31 and a second slot corresponding to the second buckle 21.

[0054] As an additional implementation, the first buckle 31 and the second buckle 21 are both provided on the main body 1, and the first cover 2 and the second cover 3 are respectively provided with a second slot and a third slot corresponding to the first buckle 31 and the second buckle 21.

[0055] In one embodiment, combined Figure 1 , Figure 4 and Figure 5As shown, the second slot includes a limiting part 16, and the second locking pair also includes a relief opening 103, which is adapted to avoid the protrusion 211 from entering the second slot.

[0056] Specifically, taking the first cover 2 and the main body 1 as examples, Figure 5 This is a cross-sectional view of the first cover 2 and the main body 1 connected by a second snap-fit. A second snap-fit ​​21 is provided on the first cover 2, and a second slot is provided on the main body 1. The direction of the main body 1 towards the first cover 2 is defined as the first direction. The limiting part 16 is adapted to limit the protrusion 211 from disengaging from the second slot along the first direction. A clearance opening 103 is provided on the side wall of the ribbon cartridge compartment 101 corresponding to the second slot to allow the protrusion 211 to be recessed and to act as a guide, thus facilitating the insertion of the protrusion 211 into the second slot. When the first snap-fit ​​is released, the first cover 2 can rotate relative to the main body 1 by a certain angle around the contact surface between the protrusion 211 and the limiting part 16 via the second snap-fit ​​21. Alternatively, the protrusion 211 can disengage from the second slot through the clearance opening 103, thereby removing the first cover 2 from the main body 1.

[0057] In one embodiment, combined Figure 1 , Figure 4 and Figure 9 As shown, the main body 1 is also equipped with a printing assembly, which includes a rubber roller assembly 12 and a printhead assembly 13. The printhead assembly 13 is disposed inside the ribbon cartridge 101. The rubber roller assembly 12 is movably disposed on the main body 1. The first cover 2 is provided with a pushing part 15, which is adapted to push the rubber roller assembly 12 closer to the printhead assembly 13.

[0058] Specifically, the roller assembly 12 is hinged to the main body 1, and the printhead assembly 13 is fixedly disposed within the ribbon cartridge 101. The roller assembly 12 is located on the side of the printhead assembly 13 opposite to the ribbon cartridge. The roller assembly 12 includes a rotating shaft 121. The main body 1 has a cutout area 14 on the side of the roller assembly 12 opposite to the printhead assembly 13. A pushing part 15 on the first cover 2 is disposed corresponding to the cutout area 14, and the pushing part 15 has an inclined surface 151. During the process of closing the first cover 2 onto the main body 1, the pushing part 15 extends into the cutout area 14 and slides against the side of the roller assembly 12 opposite to the printhead assembly 13 through the inclined surface 151, thereby squeezing the roller assembly 12 to rotate around the rotating shaft 121 toward the printhead assembly 13, thereby making the roller assembly 12 contact the printing medium (e.g., label paper) on the printhead assembly 13, ensuring that the printing medium passes smoothly and avoiding paper jams or deviations.

[0059] In one embodiment, combined Figure 1 and Figure 4As shown, the label printer also includes a paper output port 11, which is formed by splicing together notches provided on the main body 1 and the first cover 2.

[0060] The label printer provided in this embodiment is formed by splicing two separate notches for the paper output port 11, and these two notches are respectively set on the first cover 2 and the main body 1, so that when installing the first cover 2, the user can quickly identify the installation orientation of the first cover 2.

[0061] Specifically, when installing the first cover 2, the user observes the position of the notch forming the paper outlet 11 and aligns the two notches to facilitate quick identification and adjustment of the first cover 2 to the appropriate position, thereby ensuring accurate installation and improving installation efficiency. The paper outlet 11 is either waist-shaped or elliptical. When the paper outlet 11 is waist-shaped, the two notches respectively located on the first cover 2 and the main body 1 form a U-shape.

[0062] In one embodiment, combined Figure 1 , Figure 4 and Figure 7 As shown, a cutter assembly 9 is provided on the main body 1 near the paper outlet 11.

[0063] The label printer provided in this embodiment allows the user to cut the label using the cutter assembly 9 after printing. By integrating the cutter assembly 9 into the label printer, the operating efficiency is improved, the functionality of the label printer is enhanced, and the user experience is optimized.

[0064] Specifically, the cutter assembly 9 includes a button and a cutter. The button is movably connected to the main body 1 and a portion of it is exposed on the main body 1. The movable connection can be a hinge or a sliding connection. Driven by the button, the cutter cuts the label.

[0065] In one embodiment, combined Figure 4 and Figure 6 As shown, the label printer also includes a power switch hole 51, which is formed by splicing together notches provided on the main body 1 and the second cover 3.

[0066] The label printer provided in this embodiment uses a power switch hole 51 formed by two separate notches joined together, and these two notches are respectively set on the second cover 3 and the main body 1, so that when installing the second cover 3, the user can quickly identify the installation orientation of the second cover 3.

[0067] Specifically, when installing the second cover 3, the user observes the position of the notch forming the power switch hole 51 and aligns the two notches to facilitate quick identification and adjustment of the second cover 3 to the appropriate position, thereby ensuring accurate installation of the second cover 3 and improving installation efficiency. The power switch hole 51 is circular to distinguish it from the paper output slot 11. When the shapes of the first cover 2 and the second cover 3 are approximately the same, it also helps the user differentiate between them.

[0068] A power switch 5 is installed inside the power switch hole 51 to control the label printer between a powered-on and powered-off state. This allows users to easily shut down the label printer when it is not in use, saving power. The power switch 5 can be a button, a toggle switch, or a slider. The split design of the power switch hole 51 serves as a foolproof design feature.

[0069] In one embodiment, combined Figure 4 and Figure 6 As shown, the label printer also includes a power socket 7, which is formed by splicing together a notch on the main body 1 and the second cover 3.

[0070] The label printer provided in this embodiment uses a power socket 7 that is formed by splicing two separate notches, and these two notches are respectively set on the second cover 3 and the main body 1, so that when installing the second cover 3, the user can quickly identify the installation orientation of the second cover 3.

[0071] Specifically, when installing the second cover 3, the user can also observe the position of the notch that constitutes the power socket 7 and make the two notches that constitute the power socket 7 correspond to each other, so as to quickly identify and adjust the second cover 3 to the appropriate position, thereby ensuring the accurate installation of the second cover 3 and improving installation efficiency.

[0072] The power socket 7 can be detachably or non-detachably connected to an external power cord. In addition to using the battery 4 described below as a power source, the label printer can also be connected to an external power source via the power cord. Alternatively, the battery 4 can be selected as a rechargeable battery and charged via the external power source connected to the power cord.

[0073] In one embodiment, combined Figure 7 and Figure 8 As shown, the battery compartment 102 is used to install the battery 4, and the second cover 3 is provided with an abutment part 33 on the side facing the battery compartment 102. The abutment part 33 is adapted to limit the side of the battery 4 away from the battery compartment 102.

[0074] The label printer provided in this embodiment enhances the installation stability of the battery 4 in the battery compartment 102 by setting the abutment part 33, thereby avoiding poor contact between the battery 4 and the connector in the battery compartment 102 during the movement of the label printer.

[0075] Specifically, the contact part 33 is provided with a groove corresponding to the position of the battery 4. The groove is adapted to the shape of the outer peripheral wall of the battery 4. For example, when the battery 4 is a square battery, the groove is a square groove; when the battery 4 is a cylindrical battery, the groove is an arc-shaped groove.

[0076] In one embodiment, combined Figure 1 As shown, the ribbon box is equipped with a marker, and the first cover 2 is equipped with an observation window 22 corresponding to the marker.

[0077] The label printer provided in this embodiment has an observation window 22 on the first cover 2, so that the user can intuitively know the type of ribbon cartridge through the observation window 22 without having to open the first cover 2 for confirmation.

[0078] Specifically, there are various types of ribbon cartridges for outputting labels of different colors and / or widths. Identification features are provided on the ribbon cartridges to indicate the color and / or width of the labels they output; these identification features include label-style markings (e.g., paper or plastic labels), printed markings, or engraved markings.

[0079] The label is located on the side of the ribbon cartridge facing the first cover 2. Users can quickly identify the type of ribbon cartridge by observing the label through the viewing window 22. This eliminates the need to open the first cover 2 for confirmation, improving ease of use and efficiency, reducing operational confusion, and enhancing the user experience, thus possessing high practical value.

[0080] The observation window 22 is constructed from a through hole in the first cover 2 corresponding to the marker. Furthermore, a light-transmitting plate is provided at the through hole to seal it, preventing dust, liquid, or other contaminants from entering the interior of the first cover 2. The light-transmitting plate also serves as a viewing window, allowing the user to observe the information on the marker through the light-transmitting plate. The shape of the observation window 22 may include a polygon (e.g., a rectangle) or an ellipse. Furthermore, when the observation window 22 is rectangular, the four corners of the rectangle are rounded.

[0081] In one embodiment, combined Figure 4 and Figure 6 As shown, at least one status indicator light 6 is provided on the outer wall of the main body 1.

[0082] The label printer provided in this embodiment uses status indicator lights to display the operating status of the label printer, which helps users quickly understand the working status of the label printer and reduces operational confusion.

[0083] Specifically, as a feasible implementation, there is one status indicator light 6, which is electrically connected to the circuit board 8 described below. The status indicator light 6 displays different colors corresponding to different states of the label printer. For example, when the label printer is in a power-off state, the status indicator light 6 is off; when the label printer is in a power-on state, the status indicator light 6 is lit and displays green; when the label printer is in a standby state, the status indicator light 6 displays white; and when the label printer is in a printing state, the status indicator light 6 displays yellow.

[0084] In one embodiment, combined Figure 1 and Figure 7 As shown, the label printer also includes a circuit board 8, on which a wireless communication module is mounted. The battery 4, power socket 7, and power switch 5 are electrically connected to the circuit board 8.

[0085] The label printer provided in this embodiment is equipped with a wireless communication module. The client device communicates wirelessly with the label printer through the wireless communication module, so that the user can send printing tasks or perform other operations to the label printer through the client device.

[0086] Specifically, circuit board 8 is located inside the main unit 1. Users establish a signal connection between their client device (e.g., a mobile phone) and the label printer's wireless communication module. This connection can be via Wi-Fi, Bluetooth, or other methods. Users select the number of labels to print, text information, and format on their client device. The label printer receives the print signal via the wireless communication module and begins the printing task, thus improving the convenience and flexibility of the printing operation. Combined with the convenience and flexibility of mobile phone operation, it is particularly suitable for fields requiring mobile office capabilities, rapid response, and personalized labels, such as logistics, retail, healthcare, and warehouse management. Figure 1 , Figure 6 and Figure 7 As shown, in one feasible implementation, the circuit board 8 is disposed between the battery 4 and the second cover 3. The abutment part 33 limits the side of the circuit board 8 away from the battery compartment 102, and the circuit board 8 limits the side of the battery 4 away from the battery compartment 102, thereby ensuring the installation stability of the circuit board 8 and the battery 4.

[0087] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.

Claims

1. A label printer, characterized in that, include: The main body (1) has a ribbon cartridge compartment (101) at its top and a battery compartment (102) at its bottom. The first cover (2) is detachably connected to the main body (1), and the first cover (2) is adapted to cover the ribbon box compartment (101); The second cover (3) is detachably connected to the main body (1) and is adapted to cover the battery compartment (102).

2. The label printer according to claim 1, characterized in that, It also includes a snap-fit ​​structure; the first cover (2) and the second cover (3) are respectively connected to the main body (1) via two snap-fit ​​structures; the snap-fit ​​structure includes a first snap-fit ​​pair and a second snap-fit ​​pair; the first cover (2) and the second cover (3) are respectively snapped to one side of the main body (1) via two second snap-fit ​​pairs; the first cover (2) and the second cover (3) are respectively snapped to the other side of the main body (1) via two first snap-fit ​​pairs; when the first snap-fit ​​pair releases the snap-fit ​​restriction between the first cover (2) and the second cover (3) and the main body (1), the second cover (3) and the first cover (2) can rotate relative to the main body (1) via the guiding energy of the second snap-fit ​​pair.

3. The label printer according to claim 2, characterized in that, The first snap-fit ​​assembly includes a first snap-fit ​​(31) and a first slot. The first snap-fit ​​(31) is provided with a wedge-shaped protrusion (34), and the wedge-shaped protrusion (34) is provided with a guide surface (341). The wedge-shaped protrusion (34) is inserted into the first slot through the guide surface (341).

4. The label printer according to claim 3, characterized in that, The first cover (2) and / or the second cover (3) and / or the outer wall of the main body (1) are marked (32) at the location corresponding to the first buckle (31).

5. The label printer according to claim 2, characterized in that, The second snap fastener includes a second snap fastener (21) and a second slot. The second snap fastener (21) is provided with a protrusion (211), and the second snap fastener (21) is hooked into the second slot through the protrusion (211).

6. The label printer according to claim 5, characterized in that, The second slot includes a limiting part (16), and the second snap-fit ​​part also includes a relief opening (103). The protrusion (211) is adapted to extend into the second slot through the relief opening (103) and abut against the limiting part (16).

7. The label printer according to claim 1, characterized in that, The ribbon cartridge compartment (101) is provided with a printhead assembly (13), the main body (1) is movably provided with a rubber roller assembly (12), and the first cover (2) is provided with a pushing part (15), which is adapted to push the rubber roller assembly (12) closer to the printhead assembly (13).

8. The label printer according to any one of claims 1 to 7, characterized in that, The label printer also includes a power switch hole (51), which is formed by splicing together a notch on the main body (1) and the second cover (3).

9. The label printer according to any one of claims 1 to 7, characterized in that, The label printer also includes a power socket (7), which is formed by splicing a notch on the main body (1) and the second cover (3).

10. The label printer according to any one of claims 1 to 7, characterized in that, The battery compartment (102) is used to install the battery (4), and the second cover (3) is provided with an abutment (33) on the side facing the battery compartment (102), the abutment (33) being adapted to limit the side of the battery (4) away from the battery compartment (102).

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