A machine body structure and a printer

Abstract

The application discloses a body structure and a printer. The body structure comprises a casing and a printing assembly. The mounting cavity of the casing has a first bottom wall surface and a support surface arranged at intervals in the thickness direction of the body. The printing assembly comprises a print head located in the mounting cavity. The lower edge of the printing area is located between the first bottom wall surface and the support surface or is lower than the first bottom wall surface. The consumable box can be supported on the support surface, and the bottom surface thereof is located between the support surface and the first bottom wall surface or is flush with the support surface. That is, part of the consumable box is accommodated in the space between the support surface and the first bottom wall surface, so that the body structure can be adapted to consumable boxes with different thickness sizes, and the versatility of the body structure is improved. The body structure of the application also ensures that the printing paper is always located in the printing area in the thickness direction of the body, avoids offset printing or empty printing, and guarantees the printing quality.

Description

Technical Field

[0001] This application relates to the field of printing technology, and more particularly to a casing structure and a printer. Background Technology

[0002] Thermal transfer printers use heat and pressure applied to the printhead to transfer ink from the ribbon to the surface of the paper, thus creating the desired text or graphic information. In these printers, consumables such as ribbons and paper are typically housed in a consumable cartridge, which is detachably installed inside the printer body for easy replacement and maintenance as the ribbons and paper are consumed.

[0003] In related technologies, the printer's body structure can usually only accommodate consumable cartridges of a fixed size, making it difficult to be compatible with consumable cartridges of different sizes or models, resulting in poor assembly versatility and a poor user experience. Utility Model Content

[0004] This application provides a printer body structure and a printer that can solve the problem that the body structure of printers in related technologies is difficult to be compatible with consumable boxes of different sizes.

[0005] In a first aspect, embodiments of this application provide a chassis structure for a printer, the printer including a consumable cartridge; the chassis structure includes a housing and a printing assembly, the housing having a mounting cavity for accommodating the consumable cartridge, the wall of the housing defining the mounting cavity including a first bottom wall and a supporting surface, the first bottom wall and the supporting surface being spaced apart in the thickness direction of the chassis; the printing assembly includes a print head disposed within the mounting cavity, the print head having a printing area, the lower edge of the printing area being located within the mounting cavity in the thickness direction of the chassis. The first bottom wall surface is located between the first bottom wall surface and the supporting surface, or on the side of the first bottom wall surface away from the supporting surface; wherein, the supporting surface is used to support the consumable box when it is disposed in the mounting cavity, so that the bottom surface of the consumable box is located between the first bottom wall surface and the supporting surface or on the plane where the supporting surface is located in the thickness direction of the machine body, so that the consumable box is at a preset height relative to the print head in the thickness direction of the machine body, thereby ensuring that the printing paper output by the consumable box does not exceed the edge of the printing area of ​​the print head in the thickness direction of the machine body.

[0006] In some embodiments, in the thickness direction of the fuselage, the distance from the support surface to the first bottom wall surface is D, where D satisfies: 4mm≤D≤8mm.

[0007] In some embodiments, the housing includes a mounting base, the mounting base including a mounting base plate and a plurality of support platforms, the support platforms being connected to the mounting base plate, the mounting base plate having a first bottom wall surface, and the support platforms having the support surface; wherein at least two of the support platforms are spaced apart diagonally along the first bottom wall surface.

[0008] In some embodiments, the number of support platforms is three, namely a first support platform, a second support platform, and a third support platform; wherein, the first support platform and the second support platform are spaced apart along a first diagonal direction of the first bottom wall surface, and the third support platform and the print head are spaced apart along a second diagonal direction of the first bottom wall surface, with the first diagonal direction and the second diagonal direction forming an angle.

[0009] In some embodiments, the wall of the housing defining the mounting cavity further includes a peripheral wall, the peripheral wall including a plurality of sub-side walls arranged at an angle, and the support platform is disposed at the corner area where two adjacent sub-side walls meet; the support platform further includes a transition surface, the transition surface connecting the first bottom wall and the support surface respectively; in a direction perpendicular to the thickness direction of the housing, the transition surface extends from one of the sub-side walls to connect to the adjacent sub-side walls.

[0010] In some embodiments, the peripheral wall surface further includes a transition side wall surface connected to the support surface; in a direction perpendicular to the thickness direction of the fuselage, the transition side wall surface is located between two adjacent sub-side walls and is smoothly connected to the sub-side walls, and the transition surface and the transition side wall surface are spaced apart along the diagonal direction of the mounting cavity.

[0011] In some embodiments, the support surface is used for the positioning surface of the consumable box to rest against, the consumable box includes a first limiting part disposed on the positioning surface; the housing also includes a second limiting part disposed on the support surface, wherein one of the first limiting part and the second limiting part is a positioning hole and the other is a positioning post, the positioning hole and the positioning post are inserted into each other in the thickness direction of the housing to define the position of the consumable box relative to the mounting cavity in a direction perpendicular to the thickness direction of the housing.

[0012] In some embodiments, the second limiting part is the positioning post, and the height of the positioning post in the thickness direction of the body is h, where h satisfies: 1.5mm≤h≤3mm.

[0013] In some embodiments, the second limiting part is the positioning post, which includes a top of the post body and a positioning root. The positioning post is inserted into the positioning hole from the positioning root toward the top of the post body. The positioning post has a central axis, and from the positioning root toward the top of the post body, the outer peripheral wall of the top of the post body is an inclined surface that is inclined toward the central axis of the positioning post.

[0014] In some embodiments, the housing includes a plurality of support platforms having the support surface, wherein at least two of the plurality of support platforms are provided with the second limiting portion.

[0015] In some embodiments, the fuselage structure further includes a cover rotatably connected to the housing, the cover having a closed state that is closed to the housing; the cover includes a cover body, and in the closed state, the cover body is disposed on one side of the mounting cavity in the thickness direction of the fuselage, and is spaced apart from the wall surface of the housing that defines the upper edge of the mounting cavity.

[0016] In some embodiments, the cover further includes a limiting protrusion connected to the cover body. In the closed state, the limiting protrusion is used to abut against the wall surface of the consumable box away from the first bottom wall surface to limit the position of the consumable box relative to the mounting cavity along the thickness direction of the body.

[0017] In some embodiments, the limiting protrusion is disposed opposite to the support surface along the thickness direction of the body.

[0018] Secondly, this application embodiment also provides a printer, the printer including the aforementioned body structure and a consumable box, the consumable box being detachably installed in the mounting cavity, the consumable box also having a positioning surface; wherein, when the consumable box is installed in the mounting cavity of the body structure, the bottom wall surface of the consumable box and the first bottom wall surface are disposed opposite to each other in the thickness direction of the body, and the positioning surface abuts against the support surface.

[0019] In some embodiments, in the thickness direction of the body, the positioning surface is directly connected to the bottom surface of the consumable box and is coplanar with the bottom surface of the consumable box; or, the consumable box has a positioning groove, the wall of the positioning groove of the consumable box includes the positioning surface, the positioning surface is parallel to the bottom surface of the consumable box and is spaced apart in the thickness direction of the body.

[0020] In some embodiments, the consumable box includes a first side plate and a first snap-fit ​​portion protruding from the first side plate; the housing includes a mounting base having the mounting cavity, the mounting base including a second side plate and a second snap-fit ​​portion protruding from the second side plate; wherein the second side plate is adapted to be spaced apart from the first side plate, and the second snap-fit ​​portion is used to engage with the first snap-fit ​​portion to allow the consumable box to be detachably installed on the housing.

[0021] According to an embodiment of this application, a printer housing has a mounting cavity with a first bottom wall surface and a supporting surface spaced apart along the thickness direction of the housing. The supporting surface forms a preset suspended positioning, allowing a portion of the consumable cartridge to be accommodated in the space between the supporting surface and the first bottom wall surface. The consumable cartridge rests against the supporting surface, with its bottom surface positioned between the first bottom wall surface and the supporting surface or flush with the supporting surface. This allows the housing structure to accommodate consumable cartridges of different thicknesses. Furthermore, the consumable cartridge aligns with the printing area of ​​the print head along the thickness direction of the housing, ensuring that the printed paper output from the consumable cartridge is always within the printing area, preventing issues such as blank printing or off-center printing caused by the printing area not covering the paper. Thus, while ensuring print quality, the compatibility and versatility of the housing structure are improved, allowing users to select various specifications of consumable cartridges according to different printing needs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a printer according to one embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the opening structure of a printer according to one embodiment of this application;

[0025] Figure 3 This is a partial exploded view of a printer according to an embodiment of this application;

[0026] Figure 4 This is a cross-sectional view of a fuselage structure according to an embodiment of this application;

[0027] Figure 5 This is another cross-sectional structural schematic diagram of the fuselage structure according to an embodiment of this application;

[0028] Figure 6 for Figure 5 A magnified view of the structure at point B in the middle;

[0029] Figure 7 This is a top view of the fuselage structure according to an embodiment of this application;

[0030] Figure 8 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0031] Figure 9 This is a schematic diagram of the structure of a consumable box according to an embodiment of this application;

[0032] Figure 10 This is a schematic diagram of the structure of a consumable box according to another embodiment of this application.

[0033] Figure label:

[0034] 1. Printer;

[0035] 10. Fuselage structure; 11. Housing; 110. Mounting cavity; 110a. Suspension space; 111. Mounting base plate; 11a. First bottom wall surface; 112. Support platform; 11b. Support surface; 112a. Transition surface; 1121. First support platform; 1122. Second support platform; 1123. Third support platform; 11c. Sub-side wall surface; 11d. Transition side wall surface; 113. Second side plate; 114. Second snap-fit ​​part;

[0036] 12. Printing assembly; 121. Print head; 120. Printing area; 122. Printing roller;

[0037] 13. Engine cover; 131. Main body of the cover; 132. Limiting protrusion;

[0038] 20. Consumable box; 200. Positioning groove; 20a. Positioning surface; 20b. Bottom surface; 21. First side plate; 22. First snap-fit ​​part;

[0039] 31. Positioning hole; 32. Positioning post; 321. Top of post; 322. Positioning root;

[0040] X, the thickness direction of the fuselage. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0042] In practical use, printing tasks often change due to varying user needs. For example, users may choose different sizes of paper based on the amount of information to be printed, and different paper sizes correspond to different sized consumable cartridges. However, the structure of traditional printers typically only accommodates consumable cartridges of a fixed size and cannot accommodate consumables of various sizes. When users need to change consumable cartridges to different sizes, they often have to replace the entire printer, which is cumbersome, increases operating costs, and affects ease of use and overall user experience. Therefore, this application provides a printer structure and a printer based on this principle.

[0043] Please see Figures 1-3 The printer 10 is a body structure 10 used for printer 1. Printer 1 includes a consumable cartridge 20, which contains printing paper and ribbon, and is capable of outputting printing paper and refilling ribbon under the drive of the body structure 10. The body structure 10 includes a housing 11 and a printing assembly 12. The housing 11 has a mounting cavity 110 for accommodating the consumable cartridge 20. The printing assembly 12 includes a print head 121 disposed in the mounting cavity 110. The print head 121 has a printing area 120, which is formed on one side wall of the print head 121 and extends along the thickness direction X of the body. The printing area 120 is used for supporting the printing paper and ribbon ink. The printing assembly 12 is used to transfer heat and apply pressure to the printing paper and ribbon ink as the printing paper output from the consumable cartridge 20 passes through the printing area 120, thereby transferring the ribbon ink to the paper surface.

[0044] Please see Figure 3 and Figure 4 The casing 11 defines the wall surface of the mounting cavity 110, which includes a first bottom wall surface 11a and a support surface 11b. In the thickness direction X of the casing, the first bottom wall surface 11a and the support surface 11b are spaced apart, thus forming a suspended space 110a between them. The support surface 11b is used to support the consumable box 20 when it is placed in the mounting cavity 110, positioning the consumable box 20 so that a portion of it is housed within the suspended space 110a. Specifically, in the thickness direction X of the casing, the bottom surface of the consumable box 20 is located between the first bottom wall surface 11a and the support surface 11b or on the plane containing the support surface 11b, allowing the casing structure 10 to accommodate consumable boxes 20 of different thicknesses. Furthermore, the consumable cartridge 20 is positioned at a preset height relative to the print head 121 in the thickness direction X of the printer body. This ensures that the printed paper output from the consumable cartridge 20 does not extend beyond the edge of the printing area 120 of the print head 121 in the thickness direction X, thus guaranteeing that the printed paper remains within the printing area 120 and preventing issues such as blank printing or off-center printing caused by the printing area 120 failing to cover the printed paper. In this way, while ensuring print quality, the compatibility and versatility of the printer body structure 10 are improved, allowing users to select various sizes of consumable cartridges 20 according to different printing needs.

[0045] like Figure 4 As shown, in the thickness direction X of the body, the lower edge of the printing area 120 is located between the first bottom wall surface 11a and the support surface 11b, or the lower edge of the printing area 120 is located on the side of the first bottom wall surface 11a away from the support surface 11b, so as to ensure that the printing paper output by the consumable box 20 can always enter the effective range of the printing area 120.

[0046] Please see Figures 5-6 In the thickness direction X of the printer body, the distance D from the support surface 11b to the first bottom wall surface 11a satisfies: 4mm ≤ D ≤ 8mm. By selecting a distance between the support surface 11b and the first bottom wall surface 11a that satisfies the above range, the mounting cavity 110 can accommodate consumable cartridges 20 of different thicknesses, while also considering the compatibility of the printer body structure 10 and the compactness of the printer structure 1. If D < 5mm, the height of the suspension space 110a is too small, and the mounting cavity 110 cannot provide sufficient safety space for thicker consumable cartridges 20; if D > 8mm, the height of the suspension space 110a is too large, resulting in an increase in the thickness dimension of the casing 11, which is not conducive to the miniaturization design and space utilization efficiency of the printer.

[0047] Please see Figure 7 The housing 11 includes a mounting base, which includes a mounting base plate 111 and multiple support platforms 112. The support platforms 112 are connected to the mounting base plate 111. The mounting base plate 111 has a first bottom wall surface 11a, and the support platforms 112 have support surfaces 11b. At least two support platforms 112 are spaced diagonally along the first bottom wall surface 11a, providing more stable support and positioning for the consumable cartridge 20 within the mounting cavity 110. During printing, if the consumable cartridge 20 shifts position, the output ribbon or paper may not accurately fall into the printing area 120 of the print head 121, leading to misalignment or uneven heating, severely affecting print quality. Compared to concentrating the consumable cartridge 20 in a specific area of ​​the first bottom wall surface 11a or distributing it along its edge, the diagonal distribution creates geometrically symmetrical and stable support, effectively preventing the consumable cartridge 20 from shaking due to mechanical vibration or human operation during printing. In addition, the diagonally arranged support platform 112 makes full use of the edge space of the mounting cavity 110, so that the interior of the mounting cavity 110 forms a more concentrated and regular mounting space, so that the matching consumable box 20 can set the installation area at the corner position without occupying extra space in the length or width direction.

[0048] In some embodiments, the number of support platforms 112 is three: a first support platform 1121, a second support platform 1122, and a third support platform 1123. The first and second support platforms 1121 and 1122 are spaced apart along a first diagonal direction of the first bottom wall surface 11a, forming a basic support baseline to stably support the consumable cartridge 20. The third support platform 1123 is spaced apart from the printhead 121 along a second diagonal direction of the first bottom wall surface 11a. The three support platforms 112 form a three-point support layout, improving the uniformity of the support surface 11b and mitigating any tilting or warping of the consumable cartridge 20 within the mounting cavity 110. The first and second diagonal directions are angled together; for example, when the first bottom wall surface 11a is an approximately rectangular plane, the first and second diagonal directions are approximately parallel to the two diagonals of the corresponding rectangular plane.

[0049] Please see Figure 8 The housing 11 defines the wall of the mounting cavity 110, which also includes a side peripheral wall. The side peripheral wall includes a plurality of sub-side wall surfaces 11c arranged at an included angle. The support platform 112 is located at the corner area where two adjacent sub-side wall surfaces 11c meet. The support platform 112 also includes a transition surface 112a, which connects the first bottom wall surface 11a and the support surface 11b. In the direction perpendicular to the thickness X of the fuselage, the transition surface 112a extends from one of the sub-side wall surfaces 11c to connect with the adjacent sub-side wall surface 11c. That is, the support surface 11b is located in the corner area and protrudes from the relative side wall surface. This can minimize the space encroachment of the support platform 112 on the mounting cavity 110 in the corner area, providing more installation space for the consumable box 20. In addition, the location of the support surface 11b can be easily observed. The consumable box 20 can be designed with a contoured structure corresponding to multiple support surfaces 11b, which makes it easy to adjust the posture of the consumable box 20 according to the support surface 11b, so as to quickly install the consumable box 20 into the mounting cavity 110.

[0050] In some embodiments, two adjacent sub-sidewalls 11c are directly connected to form a simple corner structure to define the boundary of the mounting cavity 110, providing a basic cavity shape and limiting the consumable box 20. Alternatively, the peripheral wall also includes a transition sidewall 11d, which is connected to the support surface 11b. In the direction perpendicular to the thickness direction X of the fuselage, the transition sidewall 11d is located between two adjacent sub-sidewalls 11c, and the transition sidewall 11d and the sub-sidewalls 11c are smoothly connected to avoid forming sharp angles, facilitating manufacturing and demolding. The transition surface 112a and the transition sidewall 11d are spaced apart along the diagonal direction of the mounting cavity 110. The presence of the transition sidewall 11d can reduce the encroachment of the mounting cavity 110 on other spaces of the fuselage structure.

[0051] In some embodiments, the support surface 11b is used for the positioning surface 20a of the consumable box 20 to rest against. The consumable box 20 includes a first limiting part provided on the positioning surface 20a, and the housing 11 also includes a second limiting part provided on the support surface 11b. One of the first limiting part and the second limiting part is a positioning hole 31 and the other is a positioning post 32. The positioning hole 31 and the positioning post 32 are inserted into each other in the thickness direction X of the housing to limit the position of the consumable box 20 relative to the mounting cavity 110 in a direction perpendicular to the thickness direction X of the housing, thereby suppressing the rotation and lateral displacement of the consumable box 20 caused by printing vibration, etc. The positioning method of the insertion connection is simple in structure and accurate in alignment. At this time, in the direction perpendicular to the thickness X of the body, the outer surface of the consumable box 20 is spaced apart from the wall of the mounting cavity 110 defined by the housing, resulting in low friction. This allows the consumable box 20 to be smoothly installed into the mounting cavity 110, preventing the consumable box 20 from bumping into the body. The first and second limiting parts directly limit the position of the consumable box 20 relative to the mounting cavity 110 in the direction perpendicular to the thickness X of the body, resulting in a simple structure.

[0052] Optionally, the first limiting part is configured as a positioning post 32, and the second limiting part is configured as a positioning hole 31. The positioning post 32 of the consumable box 20 is inserted into the positioning hole 31 of the body structure 10 so that a stable connection structure is formed between the consumable box 20 and the body structure 10.

[0053] Optionally, the first limiting part is configured as a positioning hole 31, and the second limiting part is configured as a positioning post 32. The positioning post 32 of the body structure 10 is inserted into the positioning hole 31 of the consumable box 20, so that a stable connection structure is formed between the consumable box 20 and the body structure 10. In addition, it can also make the appearance of the consumable box 20 neat, so that when the consumable box 20 is outside the mounting cavity 110, it can be stably supported on other external structures.

[0054] In some embodiments, when the second limiting part is a positioning post 32, the height of the positioning post in the thickness direction X of the machine body is h, where h satisfies: 1.5mm ≤ h ≤ 3mm. By controlling the height h of the positioning post to meet the above range, the positioning post has sufficient limiting depth after being inserted into the positioning hole of the consumable box 20 to resist the positional displacement of the consumable box 20 caused by printing vibration, and at the same time facilitates disassembly. When h < 1.5mm, the height of the positioning post is too short, and the consumable box 20 is prone to loosening or displacement due to equipment vibration or user operation, affecting printing accuracy and stability; when h > 3mm, the insertion and removal path of the positioning post and the positioning hole is longer, and the consumable box 20 is prone to jamming during disassembly and assembly, and the deviation of the user's applied force direction can easily cause damage to the positioning post.

[0055] In some embodiments, the second limiting part is a positioning post 32, which includes a top 321 and a positioning root 322. The positioning post 32 is inserted into the positioning hole 31 from the positioning root 322 toward the top 321. The positioning post 32 has a central axis, and the outer peripheral wall of the top 321 is inclined towards the central axis of the positioning post 32. During the insertion and installation of the consumable box 20, the inclined surface forms a natural guide ramp, which helps guide the positioning post 32 smoothly into the positioning hole 31. Even if the initial alignment of the consumable box 20 is slightly off, the inclined surface can automatically calibrate the positioning direction by sliding, thereby reducing the dependence on assembly accuracy and improving the fault tolerance and installation efficiency of the positioning. On the other hand, this inclined structure can also reduce frictional resistance during the removal process, making the disassembly of the consumable box 20 smoother and avoiding removal difficulties or damage to the positioning hole 31 caused by jamming at right-angled edges.

[0056] In some embodiments, the housing 11 includes a plurality of support platforms 112, at least two of which are provided with second limiting portions. For example, the housing 11 includes three support platforms 112, where two adjacent support platforms 112 are provided with second limiting portions, or two spaced-apart support platforms 112 are provided with second limiting portions, or all three support platforms 112 are provided with second limiting portions. By distributing limiting structures at multiple support points, positioning fits are formed simultaneously in multiple directions, thereby effectively limiting the offset of the consumable box 20 in a plane perpendicular to the thickness direction X of the housing, improving the shaking caused by eccentric force or single-point loosening. At the same time, the structure with multiple limiting points also helps to distribute the load on the consumable box 20 during use, reducing the risk of excessive force at a single point and improving the service life of the components.

[0057] In some embodiments, the housing structure 10 further includes a cover 13 rotatably connected to the housing 11, the cover 13 having a closed state that covers the housing 11. The cover 13 includes a cover body 131. In the closed state, the cover body 131 is disposed on one side of the mounting cavity 110 in the thickness direction X of the housing, that is, the cover body 131 covers the opening area above the mounting cavity 110, achieving closed protection. Furthermore, the cover body 131 and the housing 11 are spaced apart from each other at the wall surface defining the upper edge of the mounting cavity 110, to ensure that the consumable box 20 does not touch the cover 13 in the installed state, avoiding the upper surface of the consumable box 20 from generating a pushing force on the cover body 131 due to height error, thermal expansion and contraction, or improper assembly, thereby affecting the smooth closing of the cover 13, or causing the cover body 131 to deform or warp due to force, affecting the airtightness and mechanical life of the mounting cavity 110.

[0058] In some embodiments, the cover 13 further includes a limiting protrusion 132 connected to the cover body 131. In the closed state, the limiting protrusion 132 is used to abut against the wall surface of the consumable box 20 away from the first bottom wall surface 11a, so as to limit the position of the consumable box 20 relative to the mounting cavity 110 along the thickness direction X of the machine body, further enhancing the vertical positioning stability of the consumable box 20 in the mounting cavity 110, suppressing the floating or loosening of the consumable box 20 in the thickness direction X of the machine body, thereby ensuring print quality.

[0059] With the cover 13 closed on the housing 11, the limiting protrusion 132 and the supporting surface 11b are positioned opposite each other along the thickness direction X of the printer body. This forms a clamping and limiting effect on the consumable cartridge 20, ensuring that the limiting protrusion 132 maintains contact with the consumable cartridge 20 at all times. The limiting protrusion 132 and the supporting surface 11b provide support on opposite sides of the consumable cartridge 20, thereby improving the stability of the consumable cartridge 20 during printing. Furthermore, there is no need to install supporting structures in other locations, saving space and helping to reduce the size of the printer 1.

[0060] This application embodiment also provides a printer 1, which includes a body structure 10 and a consumable cartridge 20. The consumable cartridge 20 is detachably installed in a mounting cavity 110 and has a positioning surface 20a. When the consumable cartridge 20 is installed in the mounting cavity 110 of the body structure 10, the bottom surface of the consumable cartridge and the first bottom wall surface 11a are positioned opposite each other in the thickness direction X of the body, and the positioning surface 20a rests against the support surface 11b. The support surface 11b forms a positioning reference surface at the lower part of the consumable cartridge 20, allowing the consumable cartridge 20 to achieve a stable height within the mounting cavity 110. Simultaneously, the consumable cartridge 20 can be adapted in the thickness direction X of the body through the suspension space 110a between the support surface 11b and the bottom wall surface 11b, thereby accommodating consumable cartridges 20 of different thicknesses and improving the compatibility of the body structure 10.

[0061] Please see Figure 9 The consumable box 20 has a positioning groove 200. The wall of the positioning groove 200 of the consumable box 20 includes a positioning surface 20a. The positioning surface 20a is parallel to the bottom surface 20b of the consumable box, and the positioning surfaces 20a are spaced apart in the thickness direction X of the body. That is, the positioning surface 20a and the bottom surface 20b form a certain height difference, so that the bottom surface 20b of the consumable box 20 is located below the support surface 11b, and a part of the consumable box 20 extends into the suspension space 110a, so that the consumable box 20 with a larger thickness can be installed in the mounting cavity 110.

[0062] Optionally, please refer to Figure 10In the thickness direction X of the device body, the positioning surface 20a is directly connected to the bottom surface 20b of the consumable box 20 and is coplanar with the bottom surface 20b of the consumable box 20. That is, the bottom surface 20b of the consumable box 20 is located on the plane of the support surface 11b, and the entire consumable box 20 is located on the support surface 11b and the mounting cavity above the support surface 11b, so that the consumable box 20 with a small thickness can be installed in the mounting cavity 110.

[0063] In this embodiment, the detachable connection structure between the consumable box 20 and the body structure 10 includes at least one of plug-in connection, snap-fit ​​connection, and connection via fasteners. For example, in the above embodiment, the consumable box 20 is detachably installed through the plug-in engagement of the first limiting part and the second limiting part. As another example, the consumable box 20 includes a first side plate 21 and a first snap-fit ​​part 22 protruding from the first side plate 21. The housing 11 includes a mounting base with a mounting cavity 110. The mounting base includes a second side plate 113 and a second snap-fit ​​part 114 protruding from the second side plate 113. The second side plate 113 is adapted to be spaced apart from the first side plate 21, and the second snap-fit ​​part 114 is used to snap-fit ​​with the first snap-fit ​​part 22, so that the consumable box 20 can be detachably installed on the housing 11. Optionally, one of the first latching part 22 and the second latching part 114 is a latch hook and the other is a latch groove. The latch hook and the latch groove engage to form a stable connection structure between the consumable box 20 and the housing 11 of the body structure 10. Alternatively, both the first latching part 22 and the second latching part 114 are latch hooks. After the consumable box 20 is installed in the mounting cavity 110 of the housing 11, the two latch hooks engage with each other along the thickness direction X of the body to form a stable connection structure between the consumable box 20 and the housing 11 of the body structure 10.

[0064] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fuselage structure, characterized in that, For use in a printer, the printer including a consumable cartridge; the body structure includes: The housing has a mounting cavity for accommodating the consumable box, the housing defining the wall of the mounting cavity including a first bottom wall and a support surface, wherein the first bottom wall and the support surface are spaced apart in the thickness direction of the housing body; A printing assembly includes a print head disposed within the mounting cavity, the print head having a printing area, wherein, in the thickness direction of the body, the lower edge of the printing area is located between the first bottom wall surface and the support surface or on the side of the first bottom wall surface facing away from the support surface; The supporting surface is used to support the consumable box when it is placed in the mounting cavity, so that the bottom surface of the consumable box is located between the first bottom wall surface and the supporting surface or on the plane where the supporting surface is located in the thickness direction of the machine body, so that the consumable box is at a preset height relative to the print head in the thickness direction of the machine body, thereby ensuring that the printing paper output by the consumable box does not exceed the edge of the printing area of ​​the print head in the thickness direction of the machine body.

2. The fuselage structure according to claim 1, characterized in that, In the thickness direction of the fuselage, the distance from the support surface to the first bottom wall surface is D, where D satisfies: 4mm≤D≤8mm.

3. The fuselage structure according to claim 1, characterized in that, The housing includes a mounting base, which includes a mounting base plate and a plurality of support platforms. The support platforms are connected to the mounting base plate. The mounting base plate has a first bottom wall surface, and the support platforms have the support surface. At least two of the support platforms are arranged diagonally along the first bottom wall surface.

4. The fuselage structure according to claim 3, characterized in that, The number of support platforms is three, namely, the first support platform, the second support platform, and the third support platform; The first support platform and the second support platform are spaced apart along the first diagonal direction of the first bottom wall, and the third support platform and the print head are spaced apart along the second diagonal direction of the first bottom wall, with the first diagonal direction and the second diagonal direction forming an angle.

5. The fuselage structure according to claim 3, characterized in that, The wall surface defining the mounting cavity of the housing also includes a side peripheral wall surface, the side peripheral wall surface including a plurality of sub-side walls arranged at an angle, and the support platform is located in the corner area where two adjacent sub-side walls meet; The support platform further includes a transition surface, which connects the first bottom wall surface and the support surface respectively; in a direction perpendicular to the thickness direction of the body, the transition surface extends from one of the sub-side walls to connect to the adjacent sub-side walls.

6. The fuselage structure according to claim 5, characterized in that, The peripheral wall surface also includes a transition side wall surface, which is connected to the supporting surface; In a direction perpendicular to the thickness direction of the fuselage, the transition sidewall is located between two adjacent sub-sidewalls and is smoothly connected to the sub-sidewalls. The transition surface and the transition sidewall are spaced apart along the diagonal direction of the mounting cavity.

7. The fuselage structure according to claim 1, characterized in that, The supporting surface is used for the positioning surface of the consumable box to rest against, and the consumable box includes a first limiting part disposed on the positioning surface; The housing also includes a second limiting part disposed on the support surface, wherein one of the first limiting part and the second limiting part is a positioning hole and the other is a positioning post. The positioning hole and the positioning post are inserted and engaged in the thickness direction of the housing to limit the position of the consumable box relative to the mounting cavity in a direction perpendicular to the thickness direction of the housing.

8. The fuselage structure according to claim 7, characterized in that, The second limiting part is the positioning post. In the thickness direction of the machine body, the height of the positioning post is h, and h satisfies: 1.5mm≤h≤3mm.

9. The fuselage structure according to claim 7, characterized in that, The second limiting part is the positioning post, which includes a top of the post body and a positioning root. The positioning post is inserted into the positioning hole from the positioning root toward the top of the post body. The positioning post has a central axis, and the outer peripheral wall of the top of the post is an inclined plane that slopes toward the central axis of the positioning post from the positioning root toward the top of the post.

10. The fuselage structure according to claim 7, characterized in that, The housing includes a plurality of support platforms, each support platform having the support surface, wherein at least two of the plurality of support platforms are provided with the second limiting portion.

11. The fuselage structure according to claim 1, characterized in that, The fuselage structure also includes a cover rotatably connected to the housing, the cover having a closed state that is closed to the housing; The cover includes a cover body. In the closed state, the cover body is located on one side of the mounting cavity in the thickness direction of the body and is spaced apart from the wall surface of the housing that defines the upper edge of the mounting cavity.

12. The fuselage structure according to claim 11, characterized in that, The cover also includes a limiting protrusion connected to the cover body. In the closed state, the limiting protrusion is used to abut against the wall surface of the consumable box away from the first bottom wall surface to limit the position of the consumable box relative to the mounting cavity along the thickness direction of the body.

13. The fuselage structure according to claim 12, characterized in that, Along the thickness direction of the body, the limiting protrusion is disposed opposite to the supporting surface.

14. A printer, characterized in that, include: The fuselage structure as described in any one of claims 1-13; as well as A consumable box is detachably installed in the mounting cavity, and the consumable box also has a positioning surface; When the consumable box is installed in the mounting cavity of the body structure, the bottom wall surface of the consumable box and the first bottom wall surface are arranged opposite to each other in the thickness direction of the body, and the positioning surface abuts against the supporting surface.

15. The printer according to claim 14, characterized in that, In the thickness direction of the device body, the positioning surface is directly connected to the bottom surface of the consumable box and is coplanar with the bottom surface of the consumable box; or, The consumable box has a positioning groove, and the wall of the positioning groove defined by the consumable box includes the positioning surface. The positioning surface is parallel to the bottom surface of the consumable box and is spaced apart in the thickness direction of the body.

16. The printer according to claim 14, characterized in that, The consumable box includes a first side plate and a first snap-fit ​​portion protruding from the first side plate; The housing includes a mounting base, the mounting base having the mounting cavity, and the mounting base includes a second side plate and a second snap-fit ​​portion protruding from the second side plate; The second side plate is adapted to be spaced apart from the first side plate, and the second snap-fit ​​portion is used to snap-fit ​​with the first snap-fit ​​portion so that the consumable box can be detachably installed on the housing.

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