Conveniently-assembled thermosensitive desktop bill printer

Abstract

The invention discloses a thermosensitive desktop bill printer easy and convenient to assemble, and the printer comprises a front cover which is provided with a power line in the inner wall; the wire pressing plate is detachably connected with the front cover through a first connecting mechanism; the paper detection assembly is detachably assembled in the front cover and is adjacent to the wire pressing plate; the front cover and the middle frame are assembled in a matched mode, and the front cover and the middle frame are detachably connected through a second connecting mechanism, a third connecting mechanism and a fourth connecting mechanism. The wire pressing plate is introduced, the wire pressing plate and the front cover are rapidly assembled through the first connecting mechanism, the wire pressing plate is installed in the front cover to restrain the power line on one side in the front cover in order, and the situation that the power line is broken or disordered is avoided; the paper detector assembly can be quickly assembled on the front cover, and the light holes are separated through the sub-plates on the partition plate, so that the phenomenon of light channeling is avoided, and meanwhile, the assembly process is simplified; the front cover is quickly and simply assembled on the middle frame through the second connecting mechanism, the third connecting mechanism and the fourth connecting mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of printers, and in particular relates to a thermal desktop receipt printer that is easy to assemble. Background Art

[0002] A receipt printer is a printer used to print receipts, usually used in commercial stores such as supermarkets.

[0003] For most receipt printers currently on the market, the internal power cord is usually fixed by cable ties or screws, which usually leads to messy and folded lines.

[0004] Moreover, the paper detector not only has the problem of light leakage, but also the assembly between the paper detector, the power cord and the machine body is rather complicated and not simple enough. Summary of the invention

[0005] The object of the present invention is to provide a thermal desktop receipt printer that is easy to assemble to solve the problems raised in the above background technology.

[0006] In view of this, the present invention provides a thermal desktop receipt printer that is easy to assemble, comprising: A front cover, an inner wall of which a power line is introduced; A wire pressing plate, which is detachably connected to the front cover via a first connecting mechanism, and the power line is controlled and pressed to extend along the bottom of the inner wall of the front cover via the wire pressing plate; A paper detection assembly can be assembled and disassembled in the front cover and is adjacent to the wire pressing plate. A partition is formed on the front cover to separate the lights on the paper detection assembly; The middle frame, the front cover and the middle frame are adapted and assembled, and the front cover and the middle frame are detachably connected through a second connecting mechanism, a third connecting mechanism and a fourth connecting mechanism.

[0007] A further embodiment of the present invention is that the first connecting mechanism includes a first buckle and a second buckle arranged on the wire pressing plate and a first slot and a second slot arranged in the front cover, when the wire pressing plate is assembled in the front cover, the first buckle and the first slot are snap-fitted, and the second buckle and the second slot are snap-fitted, wherein the first slot is on the first side wall of the front cover, the second slot is on the second side wall of the front cover, the first slot is on one side of the bottom of the front cover, and the second slot is on the upper edge of the second side wall of the front cover.

[0008] A further implementation scheme of the present invention is that the wire pressing plate includes a first plate portion and a second plate portion, the first plate portion is fitted beside the first side wall, the second plate portion is fitted to the second side wall, and a space for the power cord to pass through is formed between the first plate portion and the first side wall, and a visual window is provided on the first plate portion, through which the power cord entry port can be observed.

[0009] A further implementation scheme of the present invention is that a stop block and a plurality of limit blocks are provided on the inner bottom of the front cover along the extension direction of the first side wall, the stop block is close to the second side wall and obliquely opposite to the first slot, and when the wire pressing plate is fixed on the front cover, the stop block presses against the outer side of the first plate portion, so that the wire pressing plate is pressed between the first slot and the stop block, and the power cord is limited and extended and guided between the limit block and the first side wall.

[0010] A further embodiment of the present invention is that the second connecting mechanism includes a first buckle hole arranged on the front cover and a first buckle position arranged on the inner wall of the middle frame, and the inner wall of the middle frame is also provided with a guide block above the first buckle position. When the front cover is assembled on the middle frame, the first buckle hole is pushed in along the guide block until it is locked and fixed with the first buckle position.

[0011] A further implementation scheme of the present invention is that the third connecting mechanism includes a second buckle hole arranged on the inner wall of the middle frame, the second buckle hole is directly opposite to the bottom of the first buckle position, and also includes a second buckle position arranged on the front cover, the buckle direction of the second buckle position is arranged inward, when the front cover and the middle frame are assembled, the second buckle position and the second buckle hole are buckled and fixed.

[0012] A further implementation scheme of the present invention is that the fourth connecting mechanism includes a third buckle position arranged on the front cover and a third buckle hole at the bottom of the middle frame, and the buckle direction of the third buckle position is arranged outward. When the front cover and the middle frame are assembled, the third buckle position and the third buckle hole are buckled and fixed.

[0013] A further implementation scheme of the present invention is that the paper detecting assembly is assembled on the second side wall of the front cover, the paper detecting assembly includes a light board, a paper detector and a cover plate, a first stud is arranged on the second side wall, a first screw hole is opened on the light board, and the first stud is locked and fixed by corresponding to the first screw hole, a second stud is arranged on the second side wall, a second screw hole is opened on the paper detector, and the paper detector is fixed to the front cover by corresponding to the second screw hole, the paper detector is located above the light board, and a third stud and a positioning column are also provided on the front cover, the positioning column is located on the inner side of the third stud, a third screw hole and a positioning hole are opened on the cover plate, and the positioning column and the positioning hole are plugged in for positioning, and the third screw hole and the third stud correspond to lock and fix the cover plate to the front cover.

[0014] A further implementation scheme of the present invention is that the upper end surface of the partition is arranged at an angle of 45° with the bottom surface of the front cover, so that the light board is attached to the upper end surface of the partition when fixed on the front cover, a clamping position is opened in the middle of the bottom of the light board, and a clamping block is arranged between the partition and the front cover, and the clamping block and the clamping position are clamped and positioned.

[0015] A further embodiment of the present invention is that the partition is further provided with a dividing plate, light-transmitting holes are opened between the dividing plates of the second side wall, and each light position on the lamp panel corresponds to each light-transmitting hole and is separated by the dividing plate.

[0016] The beneficial effects of the present invention are: By introducing the wire pressing plate, the wire pressing plate is quickly assembled through the first connecting mechanism and the front cover. The wire pressing plate is installed on the front cover to neatly constrain the power cord on one side of the front cover to avoid the power cord from being bent or messy; the paper detector assembly can be quickly assembled on the front cover, and each light-transmitting hole is separated by the dividing plate on the partition to avoid light leakage, while also simplifying the assembly process; the front cover is quickly and easily assembled on the middle frame through the second connecting mechanism, the third connecting mechanism and the fourth connecting mechanism to simplify the disassembly and assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the front cover and the paperboard when assembled according to the present invention; Figure 2 It is a schematic diagram of the exploded structure of the front cover and the paperboard of the present invention; Figure 3 It is a schematic diagram of the structure of the pressboard; Figure 4 It is a structural diagram of the middle frame; Figure 5 It is a schematic diagram of the structure of the front cover; Figure 6 This is a schematic diagram of the installation structure of the paper detection component on the front cover; Figure 7 It is a schematic diagram of the exploded structure of the paper detection component on the front cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0019] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0021] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0022] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0023] Example 1 This embodiment provides a thermal desktop receipt printer that is easy to assemble, comprising: The front cover 1 has a power cord 2 introduced into its inner wall. The conventional power cord 2 is fixed to the front cover 1 by a cable tie or screws, which results in a messy and broken line phenomenon. The wire pressing plate 3 is detachably connected to the front cover 1 through a first connecting mechanism. The power line 2 is controlled to extend along the bottom of the inner wall of the front cover 1 through the wire pressing plate 3. Firstly, there is no need to lock it with screws. Secondly, the wire pressing plate 3 can be quickly installed to simplify the assembly and disassembly process. The paper detection assembly can be disassembled and assembled in the front cover 1 and is adjacent to the wire pressing plate 3. A partition 8 is formed on the front cover 1 to separate the light on the paper detection assembly. The partition 8 is used to separate the light into multiple independent partitions to avoid the problem of light leakage. The middle frame 4, the front cover 1 and the middle frame 4 are adapted and assembled, and the front cover 1 and the middle frame 4 are detachably connected through the second connecting mechanism, the third connecting mechanism and the fourth connecting mechanism.

[0024] In this embodiment, the first connecting mechanism includes a first buckle 30 and a second buckle 31 arranged on the wire pressing plate 3 and a first card slot 10 and a second card slot 11 arranged in the front cover 1. When the wire pressing plate 3 is assembled in the front cover 1, the first buckle 30 and the first card slot 10 are snap-fitted, and the second buckle 31 and the second card slot 11 are snap-fitted. The first card slot 10 is on the first side wall 12 of the front cover 1, and the second card slot 11 is on the second side wall 13 of the front cover 1. The first card slot 10 is on the bottom side of the front cover 1, and the second card slot 11 is on the upper edge of the second side wall 13 of the front cover 1. Push the wire pressing plate 3 onto the front cover 1, and then press the wire pressing plate 3 so that the first buckle 30 is snapped on the first card slot 10, and the second buckle 31 is snapped on the second card slot 11 to complete the assembly. When disassembling, push the wire pressing plate 3 in reverse without drilling holes to lock screws, and the disassembly and assembly process is simple.

[0025] In this embodiment, the wire pressing plate 3 includes a first plate portion 32 and a second plate portion 33, the first plate portion 32 is fitted beside the first side wall 12, the second plate portion 33 is fitted to the second side wall 13, and a space for the power cord 2 to pass through is formed between the first plate portion 32 and the first side wall 12, and a visual window 34 is provided on the first plate portion 32, through which the power cord 2 entry port can be observed. Since the power cord 2 is inserted from a corner of the front cover 1, the entry port may have a fold line. In order to avoid being blocked by the wire pressing plate 3, the wire pressing plate 3 is pressed in and then observed through the visual window 34, which facilitates adjustment.

[0026] In this embodiment, a stop block 14 and a plurality of limit blocks 15 are provided at the inner bottom of the front cover 1 along the extension direction of the first side wall 12. The stop block 14 is close to the second side wall 13 and is obliquely opposite to the first slot 10. When the wire pressing plate 3 is fixed on the front cover 1, the stop block 14 presses against the outer side of the first plate portion 32, so that the wire pressing plate 3 is pressed between the first slot 10 and the stop block 14. The power cord 2 is limited and extended and guided between the limit block 15 and the first side wall 12. An area for the power cord 2 to pass through is formed between the limit block 15 and the first side wall 12, and the direction is controlled so that the power cord 2 is tightly pressed inside the front cover 1. The stop block 14 also has the function of pressing and fixing the wire pressing plate 3.

[0027] Example 2 An easily assembled thermal desktop receipt printer comprising: The front cover 1 has a power cord 2 introduced into its inner wall. The conventional power cord 2 is fixed to the front cover 1 by a cable tie or screws, which results in a messy and broken line phenomenon. The wire pressing plate 3 is detachably connected to the front cover 1 through a first connecting mechanism. The power line 2 is controlled to extend along the bottom of the inner wall of the front cover 1 through the wire pressing plate 3. Firstly, there is no need to lock it with screws. Secondly, the wire pressing plate 3 can be quickly installed to simplify the assembly and disassembly process. The paper detection assembly can be disassembled and assembled in the front cover 1 and is adjacent to the wire pressing plate 3. A partition 8 is formed on the front cover 1 to separate the light on the paper detection assembly. The partition 8 is used to separate the light into multiple independent partitions to avoid the problem of light leakage. The middle frame 4, the front cover 1 and the middle frame 4 are adapted and assembled, and the front cover 1 and the middle frame 4 are detachably connected through the second connecting mechanism, the third connecting mechanism and the fourth connecting mechanism.

[0028] In this embodiment, the first connecting mechanism includes a first buckle 30 and a second buckle 31 arranged on the wire pressing plate 3 and a first card slot 10 and a second card slot 11 arranged in the front cover 1. When the wire pressing plate 3 is assembled in the front cover 1, the first buckle 30 and the first card slot 10 are snap-fitted, and the second buckle 31 and the second card slot 11 are snap-fitted. The first card slot 10 is on the first side wall 12 of the front cover 1, and the second card slot 11 is on the second side wall 13 of the front cover 1. The first card slot 10 is on the bottom side of the front cover 1, and the second card slot 11 is on the upper edge of the second side wall 13 of the front cover 1. Push the wire pressing plate 3 onto the front cover 1, and then press the wire pressing plate 3 so that the first buckle 30 is snapped on the first card slot 10, and the second buckle 31 is snapped on the second card slot 11 to complete the assembly. When disassembling, push the wire pressing plate 3 in reverse without drilling holes to lock screws, and the disassembly and assembly process is simple.

[0029] In this embodiment, the wire pressing plate 3 includes a first plate portion 32 and a second plate portion 33, the first plate portion 32 is fitted beside the first side wall 12, the second plate portion 33 is fitted to the second side wall 13, and a space for the power cord 2 to pass through is formed between the first plate portion 32 and the first side wall 12, and a visual window 34 is provided on the first plate portion 32, through which the power cord 2 entry port can be observed. Since the power cord 2 is inserted from a corner of the front cover 1, the entry port may have a fold line. In order to avoid being blocked by the wire pressing plate 3, the wire pressing plate 3 is pressed in and then observed through the visual window 34, which facilitates adjustment.

[0030] In this embodiment, a stop block 14 and a plurality of limit blocks 15 are provided at the inner bottom of the front cover 1 along the extension direction of the first side wall 12. The stop block 14 is close to the second side wall 13 and is obliquely opposite to the first slot 10. When the wire pressing plate 3 is fixed on the front cover 1, the stop block 14 presses against the outer side of the first plate portion 32, so that the wire pressing plate 3 is pressed between the first slot 10 and the stop block 14. The power cord 2 is limited and extended and guided between the limit block 15 and the first side wall 12. An area for the power cord 2 to pass through is formed between the limit block 15 and the first side wall 12, and the direction is controlled so that the power cord 2 is tightly pressed inside the front cover 1. The stop block 14 also has the function of pressing and fixing the wire pressing plate 3.

[0031] A further implementation scheme of this embodiment is that the second connecting mechanism includes a first buckle hole 16 arranged on the front cover 1 and a first buckle position 40 arranged on the inner wall of the middle frame 4, and a guide block 41 is also protruding from the inner wall of the middle frame 4 above the first buckle position 40. When the front cover 1 is assembled on the middle frame 4, the first buckle hole 16 is pushed along the guide block 41 until it is clamped and fixed with the first buckle position 40.

[0032] A further implementation scheme of this embodiment is that the third connecting mechanism includes a second buckle hole 42 arranged on the inner wall of the middle frame 4, the second buckle hole 42 is directly opposite to the bottom of the first buckle position 40, and also includes a second buckle position 17 arranged on the front cover 1, the buckle direction of the second buckle position 17 is set inward, when the front cover 1 and the middle frame 4 are assembled, the second buckle position 17 is buckled and fixed with the second buckle hole 42.

[0033] A further implementation scheme of this embodiment is that the fourth connecting mechanism includes a third buckle position 18 arranged on the front cover 1 and a third buckle hole 43 at the bottom inner side of the middle frame 4, and the buckle direction of the third buckle position 18 is arranged outward. When the front cover 1 is assembled with the middle frame 4, the third buckle position 18 and the third buckle hole 43 are buckled and fixed. Therefore, the front cover 1 can be quickly fixed to the middle frame 4, and the stability of the assembly is improved through multiple mechanisms.

[0034] Example 3 An easily assembled thermal desktop receipt printer comprising: The front cover 1 has a power cord 2 introduced into its inner wall. The conventional power cord 2 is fixed to the front cover 1 by a cable tie or screws, which results in a messy and broken line phenomenon. The wire pressing plate 3 is detachably connected to the front cover 1 through a first connecting mechanism. The power line 2 is controlled to extend along the bottom of the inner wall of the front cover 1 through the wire pressing plate 3. Firstly, there is no need to lock it with screws. Secondly, the wire pressing plate 3 can be quickly installed to simplify the assembly and disassembly process. The paper detection assembly can be disassembled and assembled in the front cover 1 and is adjacent to the wire pressing plate 3. A partition 8 is formed on the front cover 1 to separate the light on the paper detection assembly. The partition 8 is used to separate the light into multiple independent partitions to avoid the problem of light leakage. The middle frame 4, the front cover 1 and the middle frame 4 are adapted and assembled, and the front cover 1 and the middle frame 4 are detachably connected through the second connecting mechanism, the third connecting mechanism and the fourth connecting mechanism.

[0035] In this embodiment, the first connecting mechanism includes a first buckle 30 and a second buckle 31 arranged on the wire pressing plate 3 and a first card slot 10 and a second card slot 11 arranged in the front cover 1. When the wire pressing plate 3 is assembled in the front cover 1, the first buckle 30 and the first card slot 10 are snap-fitted, and the second buckle 31 and the second card slot 11 are snap-fitted. The first card slot 10 is on the first side wall 12 of the front cover 1, and the second card slot 11 is on the second side wall 13 of the front cover 1. The first card slot 10 is on the bottom side of the front cover 1, and the second card slot 11 is on the upper edge of the second side wall 13 of the front cover 1. Push the wire pressing plate 3 onto the front cover 1, and then press the wire pressing plate 3 so that the first buckle 30 is snapped on the first card slot 10, and the second buckle 31 is snapped on the second card slot 11 to complete the assembly. When disassembling, push the wire pressing plate 3 in reverse without drilling holes to lock screws, and the disassembly and assembly process is simple.

[0036] In this embodiment, the wire pressing plate 3 includes a first plate portion 32 and a second plate portion 33, the first plate portion 32 is fitted beside the first side wall 12, the second plate portion 33 is fitted to the second side wall 13, and a space for the power cord 2 to pass through is formed between the first plate portion 32 and the first side wall 12, and a visual window 34 is provided on the first plate portion 32, through which the power cord 2 entry port can be observed. Since the power cord 2 is inserted from a corner of the front cover 1, the entry port may have a fold line. In order to avoid being blocked by the wire pressing plate 3, the wire pressing plate 3 is pressed in and then observed through the visual window 34, which facilitates adjustment.

[0037] In this embodiment, a stop block 14 and a plurality of limit blocks 15 are provided at the inner bottom of the front cover 1 along the extension direction of the first side wall 12. The stop block 14 is close to the second side wall 13 and is obliquely opposite to the first slot 10. When the wire pressing plate 3 is fixed on the front cover 1, the stop block 14 presses against the outer side of the first plate portion 32, so that the wire pressing plate 3 is pressed between the first slot 10 and the stop block 14. The power cord 2 is limited and extended and guided between the limit block 15 and the first side wall 12. An area for the power cord 2 to pass through is formed between the limit block 15 and the first side wall 12, and the direction is controlled so that the power cord 2 is tightly pressed inside the front cover 1. The stop block 14 also has the function of pressing and fixing the wire pressing plate 3.

[0038] A further implementation scheme of this embodiment is that the second connecting mechanism includes a first buckle hole 16 arranged on the front cover 1 and a first buckle position 40 arranged on the inner wall of the middle frame 4, and a guide block 41 is also protruding from the inner wall of the middle frame 4 above the first buckle position 40. When the front cover 1 is assembled on the middle frame 4, the first buckle hole 16 is pushed along the guide block 41 until it is clamped and fixed with the first buckle position 40.

[0039] A further implementation scheme of this embodiment is that the third connecting mechanism includes a second buckle hole 42 arranged on the inner wall of the middle frame 4, the second buckle hole 42 is directly opposite to the bottom of the first buckle position 40, and also includes a second buckle position 17 arranged on the front cover 1, the buckle direction of the second buckle position 17 is set inward, when the front cover 1 and the middle frame 4 are assembled, the second buckle position 17 is buckled and fixed with the second buckle hole 42.

[0040] A further implementation scheme of this embodiment is that the fourth connecting mechanism includes a third buckle position 18 arranged on the front cover 1 and a third buckle hole 43 at the bottom inner side of the middle frame 4, and the buckle direction of the third buckle position 18 is arranged outward. When the front cover 1 is assembled with the middle frame 4, the third buckle position 18 and the third buckle hole 43 are buckled and fixed. Therefore, the front cover 1 can be quickly fixed to the middle frame 4, and the stability of the assembly is improved through multiple mechanisms.

[0041] In this embodiment, the paper detection assembly is assembled on the second side wall 13 of the front cover 1, and the paper detection assembly includes a light board 5, a paper detector 6 and a cover plate 7. A first stud 130 is provided on the second side wall 13, and a first screw hole 50 is provided on the light board 5. The first screw hole 50 corresponds to the first stud 130 and is locked and fixed. A second stud 131 is provided on the second side wall 13, and a second screw hole 60 is provided on the paper detector 6. The second screw hole 60 corresponds to the first stud 130. The second stud 131 is used to fix the paper detector 6 on the front cover 1. The paper detector 6 is located above the light board 5. The front cover 1 is also provided with a third stud 100 and a positioning column 101. The positioning column 101 is located on the inner side of the third stud 100. The cover plate 7 is provided with a third screw hole 70 and a positioning hole 71. The positioning column 101 and the positioning hole 71 are plugged in and positioned, and the third screw hole 70 and the third stud 100 correspond to lock the cover plate 7 on the front cover 1.

[0042] Furthermore, the upper end surface of the partition 8 is set at an angle of 45° with the bottom surface of the front cover 1, so that the light board 5 is attached to the upper end surface of the partition 8 when fixed on the front cover 1. A clamping position 51 is opened in the middle of the bottom of the light board 5, and a clamping block 80 is set between the partition 8 and the front cover 1. The clamping block 80 and the clamping position 51 are clamped and positioned to further improve the installation stability of the light board 5 and prevent it from loosening.

[0043] In addition, a dividing plate 81 is provided on the partition 8, and a light-transmitting hole 132 is opened between the dividing plates 81 of the second side wall 13. Each lighting position on the lamp board 5 corresponds to each light-transmitting hole 132 and is separated by the dividing plate 81, so that each light-transmitting hole 132 can provide light for one lighting position to prevent light leakage.

[0044] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A thermal desktop receipt printer that is easy to assemble, characterized in that: include: A front cover, an inner wall of which a power line is introduced; A wire pressing plate, which is detachably connected to the front cover via a first connecting mechanism, and the power line is controlled and pressed to extend along the bottom of the inner wall of the front cover via the wire pressing plate; A paper detection assembly can be assembled and disassembled in the front cover and is adjacent to the wire pressing plate. A partition is formed on the front cover to separate the lights on the paper detection assembly; The middle frame, the front cover and the middle frame are adapted and assembled, and the front cover and the middle frame are detachably connected through a second connecting mechanism, a third connecting mechanism and a fourth connecting mechanism.

2. The thermal desktop receipt printer according to claim 1, characterized in that: The first connecting mechanism includes a first buckle and a second buckle arranged on the wire pressing plate and a first slot and a second slot arranged in the front cover. When the wire pressing plate is assembled in the front cover, the first buckle and the first slot are snap-fitted, and the second buckle and the second slot are snap-fitted, wherein the first slot is on the first side wall of the front cover, and the second slot is on the second side wall of the front cover. The first slot is on one side of the bottom of the front cover, and the second slot is on the upper edge of the second side wall of the front cover.

3. The thermal desktop receipt printer according to claim 2, characterized in that: The wire pressing plate includes a first plate portion and a second plate portion, the first plate portion is fitted beside the first side wall, the second plate portion is fitted to the second side wall, and a space for the power line to pass through is formed between the first plate portion and the first side wall, and a visual window is provided on the first plate portion, through which the power line entry port can be observed.

4. The thermal desktop receipt printer according to claim 3 is characterized in that: A stop block and a plurality of limit blocks are provided at the inner bottom of the front cover along the extension direction of the first side wall, the stop block is close to the second side wall and obliquely opposite to the first slot, when the wire pressing plate is fixed on the front cover, the stop block presses against the outer side of the first plate portion, so that the wire pressing plate is pressed between the first slot and the stop block, and the power cord is limited and extended and guided between the limit block and the first side wall.

5. The thermal desktop receipt printer according to claim 4, characterized in that: The second connecting mechanism includes a first buckle hole arranged on the front cover and a first buckle position arranged on the inner wall of the middle frame. The inner wall of the middle frame is also provided with a guide block above the first buckle position. When the front cover is assembled on the middle frame, the first buckle hole is pushed in along the guide block until it is clamped and fixed with the first buckle position.

6. The thermal desktop receipt printer according to claim 5, characterized in that: The third connection mechanism includes a second buckle hole arranged on the inner wall of the middle frame, the second buckle hole is directly opposite to the bottom of the first buckle position, and also includes a second buckle position arranged on the front cover, the buckle direction of the second buckle position is arranged inward, when the front cover and the middle frame are assembled, the second buckle position and the second buckle hole are buckled and fixed.

7. The thermal desktop receipt printer according to claim 6, characterized in that: The fourth connection mechanism includes a third buckle position arranged on the front cover and a third buckle hole at the bottom of the middle frame. The buckle direction of the third buckle position is arranged outward. When the front cover is assembled with the middle frame, the third buckle position and the third buckle hole are buckled and fixed.

8. The thermal desktop receipt printer according to claim 7, characterized in that: The paper detecting assembly is assembled on the second side wall of the front cover, and the paper detecting assembly includes a light board, a paper detector and a cover plate. The second side wall is provided with a first stud, and the light board is provided with a first screw hole, which is locked and fixed by corresponding to the first stud through the first screw hole. The second side wall is provided with a second stud, and the paper detector is provided with a second screw hole, and the paper detector is fixed to the front cover through the second screw hole corresponding to the second stud. The paper detector is located above the light board, and the front cover is also provided with a third stud and a positioning column, and the positioning column is located on the inner side of the third stud. The cover plate is provided with a third screw hole and a positioning hole, which are inserted and positioned by the positioning column and the positioning hole, and the third screw hole and the third stud correspond to lock and fix the cover plate to the front cover.

9. The thermal desktop receipt printer according to claim 8, characterized in that: The upper end surface of the partition is set at an angle of 45° with the bottom surface of the front cover, so that the light board fits into the upper end surface of the partition when fixed on the front cover. A clamping position is opened in the middle of the bottom of the light board, and a clamping block is set between the partition and the front cover. The clamping block and the clamping position are clamped and positioned.

10. The thermal desktop receipt printer according to claim 9, characterized in that: The partition is also provided with a dividing plate, and light-transmitting holes are opened between the dividing plates of the second side wall. Each light position on the light board corresponds to each light-transmitting hole and is separated by the dividing plate.

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