Embedded miniprinter

Abstract

The utility model relates to the technical field of miniature printers, in particular to an embedded miniature printer. Comprising a shell, a limiting assembly and a locking assembly, the shell comprises a side wall and a flange, the flange is formed by extending outwards along the outer edge of one end of the side wall, a containing groove is formed in the side wall, the limiting assembly comprises a limiting block and a first driving part, and the first driving part is used for driving the limiting block to be switched between a first position and a second position; when the limiting block is located at the second position, a part of the limiting block protrudes out of the containing groove, the locking assembly is arranged in the limiting block in a penetrating mode, and the locking assembly can drive the limiting block to be close to or away from the flange. The assembly and disassembly can be realized only by matching the position of the limiting block with the locking assembly, and the limiting block is convenient to switch between the first position and the second position, so that the situation that the limiting block cannot be disassembled due to clamping stagnation during disassembly is avoided, and the stability of the assembly and disassembly process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro printers, in particular to an embedded micro printer. Background Art

[0002] Today's embedded micro printers are often used in various products such as tax control equipment, cash registers, POS machines, ATMs, ECRs, bank number-taking machines, lotteries, self-service equipment, medical instruments, weighing and measuring instruments, industrial automation instruments, industrial control and intelligent instruments, etc. They are used to print transaction vouchers, receipts and forms, etc. The most common method is to install the embedded printer on the installation port of the user's device panel and collaborate with the user's device to print.

[0003] Because the internal structure of some users' equipment is compact and the gap around the installation port is small, it is not convenient to fix the embedded micro printer on the installation port even if the panel is removed. For this type of equipment, at present, the commonly used method is to install it directly from the front of the installation port of the panel without removing the panel. This type of embedded micro printer is usually provided with an embedded micro printer on the side of the casing. A mounting groove is provided on the side of the casing, and the embedded micro printer is located in the mounting groove. A guide rib is provided on the mounting groove, and the embedded micro printer includes a locking member, an elastic member, a locking nut and a fixing member. Specifically, the locking member is inserted into the fastener, and the distal end of the locking member is threadedly connected to the locking nut, the elastic member is sleeved on the locking member, and the elastic member is located between the end of the locking member and the fixing member, and a part of the fixing member is located in the guide rib. When installing the embedded micro printer, it only needs to be inserted from the front installation port, and then the locking member is tightened to drive the fixing member close to the panel, and at the same time, a part of the fixing member protrudes out of the mounting groove under the action of the guide rib, so that the fixing member and the casing clamp the fixing panel together to realize the assembly of the embedded micro printer.

[0004] However, when the embedded micro printer needs maintenance, the fixings are sometimes unable to return to their original positions in the guide ribs during the operator's disassembly process, making disassembly difficult.

[0005] In order to solve the above problems, it is urgent to provide an embedded micro printer to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an embedded micro printer, which is assembled on the front side of the panel of the device to be installed. During the assembly and disassembly process, the assembly and disassembly can be realized by simply matching the position of the limit block with the locking component, and the limit block is easy to switch between the first position and the second position, so as to avoid jamming and making it impossible to disassemble the embedded micro printer when disassembling it, thereby improving the stability of the assembly and disassembly process of the embedded micro printer.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] An embedded micro printer, comprising:

[0009] The shell comprises a side wall and a flange, wherein the flange is formed by extending outward along the outer edge of one end of the side wall, and a receiving groove is provided on the side wall;

[0010] A limit assembly, the limit assembly comprising a limit block and a first driving part, the first driving part being configured to drive the limit block to switch between a first position and a second position, when the limit block is at the first position, the limit block is entirely located in the receiving groove, and when the limit block is at the second position, a portion of the limit block protrudes out of the receiving groove;

[0011] The locking assembly is inserted into the limit block, and the locking assembly can drive the limit block to move closer to or away from the flange.

[0012] As an optional solution, a mounting surface is provided on the side wall, and a connecting hole connected to the accommodating groove is provided on the mounting surface, and the first driving part partially protrudes out of the connecting hole and passes through the connecting hole to be connected with the limiting block.

[0013] As an optional solution, the limiting block is provided with a waist-shaped hole along a direction perpendicular to the side wall, and the locking assembly is passed through the waist-shaped hole.

[0014] As an optional solution, the locking assembly includes:

[0015] A first locking member is inserted into the limit block in a direction close to or away from the flange;

[0016] a first elastic member, sleeved on the first locking member, and the first elastic member is arranged between the bottom of the accommodating groove and the limiting block; and

[0017] A first locking nut, wherein the distal end of the first locking member is threadedly connected to the first locking nut, and rotating the first locking member can drive the limit block to approach or move away from the flange.

[0018] As an optional solution, the first locking member includes:

[0019] a locking screw, threadedly connected to the first locking nut; and

[0020] The adjusting portion is arranged at an end of the locking screw away from the first locking nut, and the adjusting portion can drive the locking screw to rotate so as to drive the limiting block to approach or move away from the flange.

[0021] As an optional solution, the limit block includes:

[0022] a connecting portion connected to the first driving portion; and

[0023] The protruding portion is connected to the connecting portion, and an avoidance groove is provided on the inner wall of the accommodating groove. When the protruding portion is located at the first position, the protruding portion is located in the avoidance groove, and the first driving portion drives the connecting portion to rotate so that the protruding portion rotates from the first position to the second position protruding from the accommodating groove.

[0024] As an optional solution, the connecting portion is provided with a mounting hole, and the locking assembly comprises:

[0025] A second locking member is provided on the mounting surface in a direction close to or away from the flange;

[0026] a limiting portion, sleeved on the second locking member; and

[0027] a second elastic member, sleeved on the second locking member, and the second elastic member is arranged between the top of the accommodating groove and the limiting portion; and

[0028] The second driving part is arranged at one end of the second locking member protruding from the mounting surface. The second driving part can drive the second locking member to lift so that the protruding part rotates to the second position, and the distal end of the second locking member can be inserted into the mounting hole.

[0029] As an optional solution, the locking assembly further includes:

[0030] The second locking nut is threadedly connected to the distal end of the second locking member, and rotating the second locking member can drive the limit block to approach or move away from the flange.

[0031] As an optional solution, the second driving part can drive the second locking member to rotate so that the limiting block approaches or moves away from the flange.

[0032] As an optional solution, a second guide rib extending in a direction close to or away from the flange is provided on the inner wall of the accommodating groove, and when the limit block rotates to the second position, a part of the connecting portion is located in the second guide rib.

[0033] The beneficial effects of the utility model are:

[0034] The utility model provides an embedded micro printer, which includes a housing, a limit assembly and a locking assembly. The housing includes a side wall and a flange, the flange is formed by extending outward along the outer edge of one end of the side wall, and a receiving groove is provided on the side wall. The limit assembly includes a limit block and a first driving part, and the first driving part is used to drive the limit block to switch between a first position and a second position. When the limit block is in the first position, the limit block is completely located in the receiving groove, and when the limit block is in the second position, a part of the limit block protrudes out of the receiving groove. The locking assembly is inserted into the limit block, and the locking assembly can drive the limit block to approach or move away from the flange. The embedded micro printer can be assembled on the front of the panel of the device to be installed, and during the assembly and disassembly process, the assembly and disassembly can be realized by matching the position of the limit block with the locking assembly, and the limit block is easy to switch between the first position and the second position, so as to avoid the occurrence of jamming when disassembling the embedded micro printer, resulting in the inability to disassemble, thereby improving the stability of the assembly and disassembly process of the embedded micro printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0036] Figure 1 This is a schematic diagram of the structure of an embedded micro printer provided in the first embodiment of the utility model;

[0037] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0038] Figure 3 It is a partial cross-sectional structural schematic diagram of the embedded micro printer provided in the first embodiment of the utility model;

[0039] Figure 4 yes Figure 2 A schematic cross-sectional view of the limit block when the limit block at the middle BB is in the first position;

[0040] Figure 5 yes Figure 2 A schematic cross-sectional view of the limit block when the limit block at the middle BB is located at the second position;

[0041] Figure 6 yes Figure 2 A schematic cross-sectional view of the locking assembly when the limit block at CC is in the first position;

[0042] Figure 7 yes Figure 2 A cross-sectional schematic diagram of the locking assembly when the limit block at CC is in the second position;

[0043] Figure 8 yes Figure 2 A cross-sectional schematic diagram of the locking assembly at CC in the locked state;

[0044] Fig. 9 This is a schematic diagram of the structure of an embedded micro printer provided in the second embodiment of the present utility model;

[0045] Fig.10 yes Fig. 9 A partial enlarged view of point D in the middle;

[0046] Fig.11 It is a partial cross-sectional structural schematic diagram of an embedded micro printer provided in the second embodiment of the utility model;

[0047] Fig.12 yes Fig.10 A schematic cross-sectional view of the limit block at EE in the middle when the limit block is in the first position;

[0048] Fig.13 yes Fig.10 A schematic cross-sectional view of the limit block at EE in the middle when the limit block is in the second position;

[0049] Fig.14 yes Fig.10 A cross-sectional schematic diagram of the locking assembly when the limit block at the middle FF is in the first position;

[0050] Fig.15 yes Fig.10 A schematic cross-sectional view of the locking assembly when the limit block at the middle FF is in the second position.

[0051] The following are marked in the figure:

[0052] 100-housing; 110-side wall; 111-accommodating groove; 1111-first guide rib; 1112-second guide rib; 112-mounting surface; 1121-connecting hole; 120-flange;

[0053] 200-limiting assembly; 210-limiting block; 211-waist-shaped hole; 212-connecting part; 2121-mounting hole; 213-protruding part; 220-first driving part;

[0054] 300-locking assembly; 310-first locking member; 311-locking screw; 312-adjusting part; 320-first elastic member; 330-first locking nut; 340-second locking member; 350-limiting part; 360-second elastic member; 370-second driving part; 380-second locking nut. DETAILED DESCRIPTION

[0055] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only partial structures related to the present invention are shown in the accompanying drawings, rather than the entire structure.

[0056] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the connection of the internal structures of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0058] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0059] Embodiment 1

[0060] like Figure 1-Figure 8As shown, this embodiment provides an embedded micro printer, which includes a housing 100, a limit assembly 200 and a locking assembly 300. The housing 100 includes a side wall 110 and a flange 120, the flange 120 is formed extending outward along the outer edge of one end of the side wall 110, and a receiving groove 111 is provided on the side wall 110. The limit assembly 200 includes a limit block 210 and a first driving part 220, and the first driving part 220 is used to drive the limit block 210 to switch between a first position and a second position. When the limit block 210 is in the first position, the limit block 210 is completely located in the receiving groove 111. When the limit block 210 is in the second position, a part of the limit block 210 protrudes out of the receiving groove 111. The locking assembly 300 is penetrated in the limit block 210, and the locking assembly 300 can drive the limit block 210 to approach or move away from the flange 120. The embedded micro printer can be assembled on the front side of the panel of the device to be installed, and during the assembly and disassembly process, the assembly and disassembly can be achieved by simply matching the position of the limit block 210 with the locking assembly 300, and the limit block 210 is easy to switch between the first position and the second position, thereby avoiding jamming and making it impossible to disassemble the embedded micro printer, thereby improving the stability of the assembly and disassembly process of the embedded micro printer.

[0061] Specifically, see Figure 2-Figure 8 ,in, Figure 4 and Figure 6 In the embodiment, the limit block 210 is located at the first position, Figure 5 and Figure 7 The middle limit block 210 is located at the second position. Figure 8 The middle limit block 210 and the flange 120 can clamp the panel of the device to be installed, and the locking assembly 300 is in a locked state. When assembling the embedded micro printer, the first driving part 220 is adjusted to adjust the limit block 210 to the second position, and then the locking assembly 300 is locked, which can drive the limit block 210 close to the flange 120, thereby fixing the structure to be clamped between the limit block 210 and the flange 120. When disassembling the embedded micro printer, first adjust the locking assembly 300 to move the limit block 210 away from the flange 120, and then adjust the first driving part 220 to adjust the limit block 210 to the first position, and then the embedded micro printer can be disassembled from the panel.

[0062] It can be seen from the above-mentioned assembly process and disassembly process that adjusting the limit block 210 from the first position to the second position during the assembly process is the first step of the assembly process, and adjusting the limit block 210 from the second position to the first position during the disassembly process is the last step of the disassembly process. Therefore, during the assembly and disassembly process, the limit block 210 protruding from the receiving groove 111 can effectively prevent the embedded micro printer from falling under non-human operation, which is conducive to improving the safety of the assembly and disassembly process of the embedded micro printer.

[0063] Furthermore, if Figure 3-Figure 5 As shown, a mounting surface 112 is provided on the side wall 110, and a connecting hole 1121 is provided on the mounting surface 112 for communicating with the accommodating groove 111. The first driving portion 220 partially protrudes out of the connecting hole 1121 and is connected to the limiting block 210 through the connecting hole 1121, so that the operator can control the first driving portion 220 to adjust the position of the limiting block 210 on the front side of the embedded micro printer, i.e., on the mounting surface 112, which is easy to operate and has a simple structure.

[0064] It can be understood that when the limit block 210 moves from the first position to the second position, the movement direction of the limit block 210 is along the direction perpendicular to the side wall 110. In order to prevent the locking assembly 300 from restricting the movement of the limit block 210, the limit block 210 is provided with a waist-shaped hole 211 along the direction perpendicular to the side wall 110, and the locking assembly 300 is passed through the waist-shaped hole 211.

[0065] Now combined Figure 3 , Figure 6-Figure 8 The detailed structure of the locking assembly 300 is described.

[0066] like Figure 3 , Figure 6-Figure 8 As shown, the locking assembly 300 includes a first locking member 310, a first elastic member 320 and a first locking nut 330. The first locking member 310 is inserted into the limiting block 210 in a direction close to or away from the flange 120, the first elastic member 320 is sleeved on the first locking member 310, and the first elastic member 320 is arranged between the bottom of the accommodating groove 111 and the limiting block 210, the distal end of the first locking member 310 is threadedly connected with the first locking nut 330, and the first locking member 310 can be rotated to drive the limiting block 210 to approach or move away from the flange 120. Due to the threaded connection between the first locking member 310 and the first locking nut 330, the first locking nut 330 is constrained to rotate freely. When the first locking member 310 is tightened, the first locking nut 330 and the stopper 210 jointly compress the first elastic member 320, driving the stopper 210 close to the flange 120. At this time, the stopper 210 and the flange 120 can clamp the fixed panel, and the embedded micro printer can be installed and fixed. On the contrary, when the embedded micro printer is disassembled, the first locking member 310 is adjusted to make the first locking nut 330 move away from the flange 120, and the first elastic member 320 drives the stopper 210 to move away from the flange 120 at the same time. Finally, the stopper 210 is adjusted to the first position to disassemble the embedded micro printer.

[0067] In addition, in order to ensure that the first locking nut 330 can perform lifting and lowering motions together with the first locking member 310 under the action of the thread, a limiting structure may be provided on the outer periphery of the first locking nut 330 .

[0068] Optionally, the first locking member 310 includes a locking screw 311 and an adjusting portion 312. The locking screw 311 is threadedly connected to the first locking nut 330, and the adjusting portion 312 is disposed at one end of the locking screw 311 away from the first locking nut 330. The adjusting portion 312 can drive the locking screw 311 to rotate, so as to drive the limit block 210 to move closer to or away from the flange 120. The adjusting portion 312 can replace an external tool such as a screwdriver for tightening the first locking member 310, and the operator can complete the assembly and disassembly of the embedded micro printer without having to prepare any tools, which provides convenience for operation.

[0069] Optionally, the adjusting portion 312 here can be a butterfly nut-like structure rotatably connected to the end of the locking screw 311. When the adjusting portion 312 is not needed to be operated, the adjusting portion 312 can be folded, thereby reducing the height of the adjusting portion 312, which is conducive to reducing the size of the embedded micro printer. In other embodiments, the adjusting portion 312 can also be a butterfly nut or a butterfly piece, and the butterfly nut or butterfly piece is fixedly connected to the locking screw 311, which is not limited in this embodiment.

[0070] Furthermore, in order to improve the stability of the movement of the limit block 210 in the direction close to or away from the flange 120, a first guide rib 1111 extending in the direction close to or away from the flange 120 is provided on the inner wall of the accommodating groove 111, and both ends of the limit block 210 are located in the first guide rib 1111. Specifically, there are two first guide ribs 1111, and a guide groove for a part of the limit block 210 is formed between the two first guide ribs 1111 to improve the stability of the movement of the limit block 210.

[0071] Embodiment 2

[0072] This embodiment provides an embedded micro printer, which is different from the embedded micro printer of the first embodiment in that the structures of the limit block 210 and the locking assembly 300 are different.

[0073] like Figure 9-Figure 15 As shown, in this embodiment, the limit block 210 includes a connecting portion 212 and a protruding portion 213. The connecting portion 212 is connected to the first driving portion 220, and the protruding portion 213 is connected to the connecting portion 212. An avoidance groove is provided on the inner wall of the accommodating groove 111. When the protruding portion 213 is in the first position, the protruding portion 213 is located in the avoidance groove, and the first driving portion 220 drives the connecting portion 212 to rotate so that the protruding portion 213 rotates from the first position to the second position protruding from the accommodating groove 111. The structure of the limit block 210 can increase the area of ​​the panel clamped by the limit block 210 and the flange 120 by increasing the protruding portion 213, which is conducive to increasing the stability of fixing the embedded micro printer.

[0074] Specifically, the width of the protruding portion 213 is smaller than that of the connecting portion 212 , and the protruding structure is formed only on a portion of the end surface of the connecting portion 212 , thereby reducing the overall size of the limiting block 210 .

[0075] Further, the connecting portion 212 is provided with a mounting hole 2121, and the locking assembly 300 includes a second locking member 340, a limiting portion 350, a second elastic member 360, and a second driving portion 370. The second locking member 340 is provided on the mounting surface 112 in a direction close to or away from the flange 120, the limiting portion 350 is sleeved on the second locking member 340, the second elastic member 360 is sleeved on the second locking member 340, and the second elastic member 360 is provided between the top of the accommodating groove 111 and the limiting portion 350, and the second driving portion 370 is provided at one end of the second locking member 340 protruding from the mounting surface 112, and the second driving portion 370 can drive the second locking member 340 to lift up so that when the protruding portion 213 rotates to the second position, the distal end of the second locking member 340 can be provided in the mounting hole 2121, so that when the second locking member 340 is rotated, the limiting block 210 can be driven to approach or move away from the flange 120. The limiting portion 350 helps to limit the second elastic member 360 so that the distal end of the second locking member 340 can be lifted when the second locking member 340 is pulled upward, thereby forming a breakthrough of the solute protrusion 213 below the limiting portion 350, allowing the distal end of the second locking member 340 to pass through the protrusion 213.

[0076] Furthermore, the locking assembly 300 also includes a second locking nut 380, which is threadedly connected to the distal end of the second locking member 340. Rotating the second locking member 340 can drive the limit block 210 to move closer to or away from the flange 120. When the limit block 210 is located in the second position, the threaded connection between the second locking member 340 and the second locking nut 380 can be utilized to rotate the second locking member 340 to drive the protrusion 213 to move closer to or away from the flange 120.

[0077] When assembling the embedded micro printer, first separate the distal end of the second locking member 340 from the second locking nut 380, then rotate the first driving part 220 to move the protruding part 213 from the first position to the second position, and at the same time adjust the second driving part 370 to pull the second locking member 340 to move the limiting part 350 toward the flange 120 to drive the compressed second elastic member 360, so that when the protruding part 213 reaches the second position, after releasing the second locking member 340, the distal end of the second locking member 340 can be inserted into the mounting hole 2121 of the connecting part 212. When disassembling the embedded micro printer, repeatedly adjust the second driving part 370 and pull the second locking member 340 so that the distal end of the second locking member 340 can be separated from the second locking part, and at this time, rotating the first driving part 220 can rotate the limiting block 210 to the first position.

[0078] The second driving part 370 can drive the second locking member 340 to rotate so that the limit block 210 is close to or away from the flange 120, so that the operator can pull the second locking member 340 by adjusting the second driving part 370 to make the limit part 350 move toward the direction of the flange 120. At the same time, adjusting the second driving part 370 can rotate the second locking member 340. The operator does not need to prepare additional tools such as a screwdriver to adjust the second locking member 340. The structure is simple and convenient for the operator to operate.

[0079] Optionally, the second drive unit 370 here can have the same structure as the adjustment unit 312 in the first embodiment, and the second drive unit 370 can be a butterfly nut-like structure rotatably connected to the end of the locking screw 311. When the second drive unit 370 is not needed to be operated, the second drive unit 370 can be folded, thereby reducing the height of the second drive unit 370, which is conducive to reducing the size of the embedded micro printer. In other embodiments, the second drive unit 370 can also be a butterfly nut or a butterfly piece, and the butterfly nut or butterfly piece is fixedly connected to the locking screw 311, which is not limited in this embodiment.

[0080] A second guide rib 1112 extending in a direction close to or away from the flange 120 is provided on the inner wall of the accommodating groove 111. When the stop block 210 rotates to the second position, a part of the connecting portion 212 is located in the second guide rib 1112, thereby improving the stability of the reciprocating motion of the stop block 210 and avoiding jamming. Specifically, there are two second guide ribs 1112, and a guide groove for a part of the stop block 210 is formed between the two second guide ribs 1112 to improve the stability of the motion of the stop block 210.

[0081] Exemplarily, in order to avoid interference between the second guide rib 1112 and other structures, the structure of the limit block 210 located between the limit grooves formed by the second guide rib 1112 can be a portion of the width of the limit block 210, that is, only a partial convex rib structure of the limit block 210 is inserted in the limit groove.

[0082] Note that the above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An embedded micro printer, characterized in that: include: The housing (100) comprises a side wall (110) and a flange (120), wherein the flange (120) is formed by extending outwards along the outer edge of one end of the side wall (110), and a receiving groove (111) is provided on the side wall (110); A limit assembly (200), the limit assembly (200) comprising a limit block (210) and a first driving unit (220), the first driving unit (220) being configured to drive the limit block (210) to switch between a first position and a second position, when the limit block (210) is located at the first position, the limit block (210) is entirely located in the receiving groove (111), and when the limit block (210) is located at the second position, a portion of the limit block (210) protrudes out of the receiving groove (111); The locking assembly (300) is inserted into the limiting block (210), and the locking assembly (300) can drive the limiting block (210) to move closer to or farther from the flange (120).

2. The embedded micro printer according to claim 1, characterized in that: The side wall (110) is provided with a mounting surface (112), the mounting surface (112) being provided with a connecting hole (1121) communicating with the accommodating groove (111), the first driving part (220) partially protruding from the connecting hole (1121) and passing through the connecting hole (1121) to be connected to the limiting block (210).

3. The embedded micro printer according to claim 1, characterized in that: The limiting block (210) is provided with a waist-shaped hole (211) along a direction perpendicular to the side wall (110), and the locking assembly (300) is inserted into the waist-shaped hole (211).

4. The embedded micro printer according to claim 2, characterized in that: The locking assembly (300) comprises: A first locking member (310) is inserted into the limiting block (210) in a direction approaching or moving away from the flange (120); A first elastic member (320) is sleeved on the first locking member (310), and the first elastic member (320) is arranged between the bottom of the receiving groove (111) and the limiting block (210); and A first locking nut (330), wherein the distal end of the first locking member (310) is threadedly connected to the first locking nut (330), and rotation of the first locking member (310) can drive the limit block (210) to move closer to or farther from the flange (120).

5. The embedded micro printer according to claim 4, characterized in that: The first locking member (310) comprises: a locking screw (311) threadedly connected to the first locking nut (330); and An adjusting portion (312) is arranged at an end of the locking screw (311) away from the first locking nut (330), and the adjusting portion (312) can drive the locking screw (311) to rotate, so as to drive the limiting block (210) to move closer to or farther from the flange (120).

6. The embedded micro printer according to claim 2, characterized in that: The limiting block (210) comprises: a connecting portion (212) connected to the first driving portion (220); and The protruding portion (213) is connected to the connecting portion (212); an avoidance groove is provided on the inner wall of the accommodating groove (111); when the protruding portion (213) is located at the first position, the protruding portion (213) is located in the avoidance groove; and the first driving portion (220) drives the connecting portion (212) to rotate so that the protruding portion (213) rotates from the first position to the second position protruding from the accommodating groove (111).

7. The embedded micro printer according to claim 6, characterized in that: The connecting portion (212) is provided with a mounting hole (2121), and the locking assembly (300) comprises: A second locking member (340) is disposed on the mounting surface (112) in a direction approaching or moving away from the flange (120); A limiting portion (350) is sleeved on the second locking member (340); and A second elastic member (360) is sleeved on the second locking member (340), and the second elastic member (360) is arranged between the top of the accommodating groove (111) and the limiting portion (350); and The second driving portion (370) is arranged at one end of the second locking member (340) protruding from the mounting surface (112), and the second driving portion (370) can drive the second locking member (340) to be lifted so that the protruding portion (213) rotates to the second position, and the distal end of the second locking member (340) can be inserted into the mounting hole (2121).

8. The embedded micro printer according to claim 7, characterized in that: The locking assembly (300) further comprises: The second locking nut (380) is threadedly connected to the distal end of the second locking member (340), and rotation of the second locking member (340) can drive the limiting block (210) to move closer to or farther from the flange (120).

9. The embedded micro printer according to claim 7, characterized in that: The second driving portion (370) is capable of driving the second locking member (340) to rotate so that the limiting block (210) moves closer to or farther from the flange (120).

10. The embedded micro printer according to claim 7, characterized in that: A second guide rib (1112) extending in a direction approaching or away from the flange (120) is provided on the inner wall of the accommodating groove (111), and when the limit block (210) rotates to the second position, a part of the connecting portion (212) is located in the second guide rib (1112).

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