Printer

Abstract

The utility model discloses a printer. A cavity is used for placing thermosensitive printing paper; the cover plate is rotationally connected with the printer main body, the cover plate can move to an opening position and a closing position relative to the printer main body, and a mounting seat is arranged on the cover plate; a rubber roller is arranged on the connecting rod, the connecting rod is rotatably arranged on the mounting seat, and the axial direction of the connecting rod is a first direction; the buckle assembly is arranged on the printer body and provided with a clamping groove, and the clamping groove is formed in the position corresponding to the end of the connecting rod. The printing head is arranged on the buckle assembly; the unlocking mechanism comprises an initial position and an unlocking position; when the cover plate is in the closed position, the connecting rod is matched with the clamping groove in a clamped mode, the cover plate covers the cavity, the unlocking mechanism is in the initial position, a paper feeding channel is formed between the rubber roller and the printing head, and the paper feeding channel is communicated with the cavity and rotates around the axis of the paper feeding channel through the connecting rod. And the rubber roller is driven to rotate so as to drive the thermosensitive printing paper in the cavity to penetrate out of the cavity from the paper feeding channel.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of printers, and particularly relates to a printer. BACKGROUND

[0002] In recent years, with the rapid development of commercial models such as food delivery and fast goods distribution, in order to improve the accuracy of order preparation, distribution and other processes, related supporting application devices have emerged. A fast printer is an important supporting device, which is used to print relevant order information so that merchants and delivery personnel can accurately obtain order information and distribution information.

[0003] Such a fast printer is usually applied to food industry and other merchants with large take-out order volume. Unlike conventional commercial printers and cash register printers, the fast printer suitable for the take-out commercial model has the characteristics of large printing volume, non-fixed use position, and noisy surrounding environment. Especially in terms of large printing volume, due to the large take-out order volume, the printer often needs to be filled with printing paper, and the printer cover plate needs to be frequently opened and closed.

[0004] At present, when the cover plate of the printer is closed, a locking piece is needed to keep it in the closed position, and a rubber roller needs a separate connecting piece to fix it inside the machine shell or on the machine cover. The internal components of the printer are more, which will lead to a relatively complex structure of the printer, a large size of the printer, and is not conducive to the realization of lightweight, and is not convenient enough during the process of opening the cover to fill the paper and restarting the use.

[0005] It is necessary to improve such a fast printer to adapt to the application requirements of the take-out commercial model. CONTENT OF THE INVENTION

[0006] The purpose of the embodiments of the application is to provide a printer.

[0007] According to a first aspect of the embodiments of the application, a printer is provided, comprising:

[0008] A printer body is provided with a cavity, and the cavity is used to place a thermal sensitive printing paper;

[0009] A cover plate is rotatably connected with the printer body, and the cover plate can be moved to an open position and a closed position relative to the printer body. The cover plate is provided with a mounting seat;

[0010] A connecting rod is provided with a rubber roller, and the connecting rod is rotatably arranged in the mounting seat. The axial direction of the connecting rod is the first direction;

[0011] A buckle assembly is arranged on the printer body, and the buckle assembly has a buckle groove. The buckle groove is arranged at a position corresponding to the end of the connecting rod.

[0012] a print head disposed adjacent to the buckle assembly;

[0013] an unlocking mechanism provided on the printer body, the unlocking mechanism comprising an initial position and an unlocked position;

[0014] in a state where the cover plate is in the closed position, the connecting rod is in engagement with the buckle slot, the cover plate covers the cavity, the unlocking mechanism is in the initial position, a paper passing channel is formed between the rubber roller and the print head, the paper passing channel is in communication with the cavity, and the rubber roller is rotated by rotating the connecting rod about its own axis to drive the thermal sensitive paper in the cavity to pass out of the paper passing channel to the outside of the cavity;

[0015] the unlocking mechanism moves from the initial position to the unlocked position, the unlocking mechanism lifts the cover plate, the connecting rod is disengaged from the buckle assembly, and the cover plate is changed from the closed position to the open position.

[0016] Optionally, the printer body is provided with a first mounting portion, and the first mounting portion is provided with a first through hole;

[0017] the cover plate is provided with a second mounting portion, the second mounting portion is provided with a second through hole, and the first through hole and the second through hole are concentric;

[0018] a pin shaft is inserted into the first through hole and the second through hole, so that the cover plate can rotate about the axis of the pin shaft to be located in the open position or the closed position.

[0019] Optionally, the printer further comprises a blocking piece, the blocking piece is detachably provided on the printer body, and the blocking piece is used to prevent the pin shaft from being disengaged from the first through hole and the second through hole.

[0020] Optionally, the connecting rod comprises a first extension section and a second extension section, and along the first direction, the first extension section and the second extension section are respectively located at both ends of the axial direction of the rubber roller;

[0021] the buckle slot of the buckle assembly comprises a first buckle slot and a second buckle slot, and the first buckle slot and the second buckle slot are spaced apart along the first direction;

[0022] in a state where the cover plate is in the closed position, the first extension section is provided in the first buckle slot, and the second extension section is provided in the second buckle slot.

[0023] Optionally, the buckle assembly comprises a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are spaced apart along the first direction, the first clamping groove is formed in the first mounting plate, and the second clamping groove is formed in the second mounting plate.

[0024] The height direction of the printer body is a third direction, and the direction perpendicular to the first direction and the third direction is a second direction.

[0025] The first clamping groove and the second clamping groove each comprise a first side wall, a second side wall, and an opening, the first side wall and the second side wall are oppositely arranged along the second direction, the first side wall comprises a first segment and a second segment connected in sequence, the first segment is close to the opening, the second side wall comprises a third segment, a fourth segment, a fifth segment, and a sixth segment connected in sequence, the third segment is close to the opening, the fourth segment is closer to the first side wall than the sixth segment, and the sixth segment is oppositely arranged with the second segment along the second direction.

[0026] In a state where the cover plate is in the closed position, the connecting rod is located between the sixth segment and the second segment, and the fifth segment limits the connecting rod from leaving the first clamping groove.

[0027] Optionally, the first segment is oppositely arranged with the third segment.

[0028] And / or, the fourth segment is arranged in parallel with the sixth segment.

[0029] And / or, the sixth segment is arranged in parallel with the second segment.

[0030] Optionally, a first included angle is formed between the first segment and the second segment, and the first included angle is an acute angle.

[0031] A second included angle is formed between the third segment and the fourth segment, a third included angle is formed between the fourth segment and the fifth segment, and a fourth included angle is formed between the fifth segment and the sixth segment, the second included angle is an acute angle, and the third included angle is an acute angle.

[0032] Optionally, the fourth included angle is an obtuse angle.

[0033] Optionally, the first mounting plate further comprises a first slot and a second slot, the first slot and the second slot are spaced apart along the second direction, the first slot and the second slot are both located below the first clamping groove along the third direction, the first slot is in communication with the first clamping groove, the second slot is in communication with the first clamping groove, the first slot is closer to the first side wall than the second slot, and the second slot is closer to the second side wall than the first slot; and / or

[0034] The second mounting plate further has a third slot and a fourth slot, the third slot and the fourth slot are arranged in the second direction, the third slot and the fourth slot are below the second clamping slot in the third direction, the third slot is communicated with the second clamping slot, the fourth slot is communicated with the second clamping slot, the third slot is close to the first side wall of the second clamping slot relative to the fourth slot, and the fourth slot is close to the second side wall of the second clamping slot relative to the third slot.

[0035] The axis of the second direction intersects with the axis of the third direction.

[0036] Optionally, the cover plate has a first avoiding slot and a second avoiding slot, the first avoiding slot and the second avoiding slot are arranged in the first direction;

[0037] In the state that the cover plate is in the closed position, the part of the first mounting plate close to the cover plate is located in the first avoiding slot, and the part of the second mounting plate close to the cover plate is located in the second avoiding slot.

[0038] Optionally, the mounting seat has a mounting slot, the connecting rod is clamped in the mounting slot, the outer diameter of the connecting rod is smaller than the inner diameter of the mounting slot, and the connecting rod is configured to be able to shake relative to the mounting seat in the direction perpendicular to the first direction.

[0039] Optionally, the mounting seat has a first mounting slot and a second mounting slot, the first mounting slot and the second mounting slot are arranged in the first direction, a part of the first extension is clamped in the first mounting slot, a part of the second extension is clamped in the second mounting slot, the outer diameter of the first extension is smaller than the inner diameter of the first mounting slot, and the outer diameter of the second extension is smaller than the inner diameter of the second mounting slot.

[0040] The connecting rod is configured to be able to shake relative to the mounting seat in the direction perpendicular to the first direction.

[0041] Optionally, the printer further comprises a first elastic member, and in the second direction, the first elastic member is arranged between the printhead and the buckle assembly.

[0042] Optionally, the printer further comprises a driving mechanism, the driving mechanism comprises a motor and a transmission assembly, and the motor can drive the transmission assembly to rotate.

[0043] The buckle assembly further comprises a containing slot, the containing slot is arranged adjacent to the clamping slot, and the transmission assembly is arranged in the containing slot.

[0044] The transmission assembly comprises at least one first gear, and the end of the connecting rod is provided with a second gear, which is engaged with the first gear when the cover plate is in the closed position.

[0045] Optionally, the printer comprises:

[0046] The unlocking mechanism moves from the initial position to the unlocking position, the unlocking mechanism lifts the cover plate, the connecting rod is separated from the buckle assembly, and the cover plate is moved away from the closed position.

[0047] Optionally, the cover plate is provided with an unlocking slope corresponding to the position of the unlocking mechanism;

[0048] During the movement of the unlocking mechanism from the initial position to the unlocking position, the unlocking mechanism can act on the unlocking slope to move the cover plate away from the closed position.

[0049] Optionally, the unlocking mechanism comprises a first unlocking part, a second unlocking part and a connecting rod, the first unlocking part and the second unlocking part are arranged in the first direction;

[0050] The first unlocking part comprises a first end, a second end and a first connecting part, the first connecting part is located between the first end and the second end, and the first connecting part is rotatably connected with the printer body;

[0051] The second unlocking part comprises a third end, a fourth end and a second connecting part, the second connecting part is located between the third end and the fourth end, and the second connecting part is rotatably connected with the printer body;

[0052] One end of the connecting rod is connected with the second end, and the other end of the connecting rod is connected with the fourth end;

[0053] By pressing the second end or the fourth end, the first end moves upward in the third direction, and the third end moves upward in the third direction to change the cover plate from the closed position to the open position.

[0054] Optionally, the printer body is provided with a third connecting part, and the connecting rod is rotatably connected with the third connecting part to rotate the unlocking mechanism between the initial position and the unlocking position.

[0055] Optionally, the printer further comprises a housing and a switch assembly, the printer body is arranged inside the housing, the switch assembly is arranged on the housing, the switch assembly abuts against the first unlocking part or the second unlocking part, and the unlocking mechanism can be triggered from the initial position to the unlocking position by the switch assembly.

[0056] Optionally, the unlocking mechanism further comprises a second elastic member, a connecting member is arranged between the fourth end and the second connecting portion, one end of the second elastic member is connected with the printer main body, and the other end of the second elastic member is connected with the connecting member.

[0057] By releasing the second end or the fourth end, the second elastic member enables the second unlocking portion and the first unlocking portion to reset from the unlocking position to the initial position.

[0058] Optionally, an optoelectronic sensor is comprised, the optoelectronic sensor has a sensing light head, and the sensing light head is arranged at a position corresponding to the rubber roller.

[0059] In a state where the cover plate is in the closed position, the rubber roller covers the sensing light head.

[0060] Optionally, in a state where the cover plate is in the closed position, a gap between the rubber roller and the sensing light head is provided for the printing paper to pass through.

[0061] One technical effect of the embodiment of the present application is that the connection rod can realize multiple functions, the connection rod can be used for installing the rubber roller, driving the rubber roller to rotate to guide the heat-sensitive printing paper, and engaging with the buckle assembly to keep the cover plate in the closed position, which can reduce the components in the printer, so as to make the structure of the printer simple, compact, and conducive to light weight.

[0062] The unlocking mechanism in the present application can directly lift the cover plate to change the cover plate from the closed position to the open position, which is simple in structure and convenient to operate.

[0063] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0064] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0065] Figure 1 FIG. 1 is a structural schematic diagram of a printer in an embodiment of the present application;

[0066] Figure 2 FIG. 2 is a structural schematic diagram of a printer in an embodiment of the present application;

[0067] Figure 3 FIG. 3 is a structural schematic diagram of a cover plate, a connection rod, and a rubber roller in an embodiment of the present application;

[0068] Figure 4A structural schematic view of the buckle assembly in the embodiment of the present application, a driving mechanism and a print head;

[0069] Figure 5 A structural schematic view of the buckle assembly in the embodiment of the present application;

[0070] Figure 6 A structural schematic view of the buckle assembly in the embodiment of the present application; Figure 5 A partial enlarged view of A in FIG. 6.

[0071] Legend: cover plate 1; mounting seat 11; third mounting plate 111; first mounting groove 1111; fourth mounting plate 112; second mounting groove 1121; first avoiding groove 12; second avoiding groove 13; printer main body 2; cavity 21; buckle assembly 3; first mounting plate 31; first clamping groove 311; first groove 312; second groove 313; accommodating groove 314; first side wall 315; first section 3151; second section 3152; second side wall 316; third section 3161; fourth section 3162; fifth section 3163; sixth section 3164; opening 317; second mounting plate 32; second clamping groove 321; third groove 322; fourth groove 323; print head 4; first elastic member 5; connecting rod 6; first extension section 61; second extension section 62; second gear 63; driving mechanism 7; motor 71; transmission assembly 72; first gear 721; unlocking mechanism 8; first unlocking part 81; first end 811; second end 812; first connecting part 813; second unlocking part 82; connecting member 821; third end 822; fourth end 823; second connecting part 824; connecting rod 83; second elastic member 84; rubber roller 9; first included angle a; second included angle b; third included angle c; fourth included angle d. DETAILED DESCRIPTION

[0072] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps set forth in the examples, as well as the numerical expressions and values, are not limitations on the scope of the present application unless otherwise specifically stated.

[0073] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the scope of the application its application or uses.

[0074] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus should be considered as being part of the specification.

[0075] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of exemplary embodiments can have different values.

[0076] It should be noted that like numerals and letters refer to like items throughout the several views, as such, once an item is defined in one view, it is not necessary to discuss it further in subsequent views.

[0077] Firstly, the first direction, the second direction and the third direction mentioned in the embodiments of the present application refer to the directions marked in the drawings. Figure 1 , Figure 3 and Figure 5 The axes of the first direction, the second direction and the third direction intersect with each other in pairs.

[0078] As shown in Figures 1-6 , according to a first aspect of the embodiments of the present application, a printer is provided, comprising a printer body 2, a cover plate 1, a buckle assembly 3, a print head 4 and an unlocking mechanism 8; the printer body 2 is provided with a cavity 21 for placing thermal sensitive paper; the cover plate 1 is rotationally connected with the printer body 2, and the cover plate 1 can be moved to an open position and a closed position relative to the printer body; the cover plate 1 is provided with a mounting seat 11; a connecting rod 6 is provided with a rubber roller 9, and the connecting rod 6 is rotatably arranged in the mounting seat 11, and the axial direction of the connecting rod 6 is the first direction; the buckle assembly 3 is arranged on the printer body 2, and the buckle assembly 3 has a clamping groove arranged at a position corresponding to the end of the connecting rod 6; the print head is arranged on the buckle assembly 3; the unlocking mechanism 8 is arranged on the printer body 2, and the unlocking mechanism 8 comprises an initial position and an unlocking position; in the state that the cover plate 1 is in the closed position, the connecting rod 6 is clamped and matched with the clamping groove, the unlocking mechanism 8 is in the initial position, a paper feeding channel is formed between the rubber roller 9 and the print head 4, the paper feeding channel is communicated with the cavity 21, and the thermal sensitive paper in the cavity 21 is driven to pass out of the paper feeding channel to the outside of the cavity 21 by rotating the connecting rod 6 around its own axis to drive the rubber roller 9 to rotate; the unlocking mechanism 8 moves from the initial position to the unlocking position, the unlocking mechanism 8 lifts the cover plate 1, the connecting rod 6 is separated from the buckle assembly 3, and the cover plate 1 is changed from the closed position to the open position.

[0079] As shown in Figure 1 , Figure 2 and Figure 3As shown, the printer comprises a cover plate 1, a printer body 2, a buckle assembly 3, a print head 4 and an unlocking mechanism 8. Among them, the printer body 2 is provided with a cavity 21, the inside of the cavity 21 is used to place the thermal sensitive paper, the cover plate 1 is movably connected with the printer body 2, that is, the cover plate 1 can rotate relative to the printer body 2, and can make the cover plate 1 be in an open position or a closed position. In the closed position, the cover plate 1 can cover the cavity 21, and in the open position, the cover plate 1 is not limited by the buckle assembly 3, so that the cavity 21 can be exposed to facilitate the replacement of the thermal sensitive paper. An installation seat 11 is arranged on the inner side of the cover plate 1, a rubber roller 9 is arranged on the installation seat 11 through a connecting rod 6, and the connecting rod 6 can rotate relative to the installation seat 11; the buckle assembly 3 is arranged on the printer body 2, the print head 4 is arranged adjacent to the buckle assembly 3, and the print head 4 can be arranged on the buckle assembly 3 or the printer body 2, and the unlocking mechanism 8 is arranged on the printer body 2. The unlocking mechanism 8 can make the cover plate 1 change from the closed position to the open position.

[0080] Among them, the open position refers to that after the connecting rod 6 is separated from the clamping groove, the cover plate 1 can be freely movable, which can be completely exposing the cavity or exposing part of the cavity.

[0081] The unlocking mechanism 8 comprises an initial position and an unlocking position, and when the cover plate 1 is in the closed position, the unlocking mechanism 8 is in the initial position.

[0082] When the cover plate 1 is in the closed position, the connecting rod 6 is in clamping and fitting with the clamping groove of the buckle assembly 3, specifically, the end of the connecting rod 6 is clamped in the clamping groove; a paper feeding channel is formed between the rubber roller 9 and the print head 4, the paper feeding channel is communicated with the cavity 21, the thermal sensitive paper passes through the paper feeding channel from the cavity 21, the rubber roller 9 rotates around its own axis, which can drive the thermal sensitive paper to move to the outside of the cavity 21, and when the thermal sensitive paper passes through the paper feeding channel, the print head 4 can print corresponding information on the thermal sensitive paper.

[0083] When the cover plate 1 changes from the closed position to the open position, the unlocking mechanism 8 moves from the initial position to the unlocking position, the unlocking mechanism 8 can move upward in the third direction and / or move in the second direction to contact the inner side of the cover plate 1, and in the process of moving, the cover plate 1 is lifted up, so that the connecting rod 6 is separated from the clamping groove, that is, the connecting rod 6 is separated from the buckle assembly 3, and the connecting rod 6 loses the limitation of the clamping groove of the buckle assembly 3, so that the cover plate 1 can change from the closed position to the open position to facilitate the replacement of the thermal sensitive paper or the maintenance.

[0084] The connecting rod 6 in the present application can be used to mount the rubber roller 9 and provide a mounting position for the rubber roller 9. When the cover plate 1 is in the closed position, the connecting rod 6 cooperates with the clamping groove to make the cover plate 1 in the closed position in the locked state, and the rubber roller 9 provided on the connecting rod 6 can form a paper feeding channel with the print head 4. Therefore, the connecting rod 6 of the printer in the present application can realize multiple functions, thereby reducing the components in the printer, and making the structure of the printer simple, compact and light in weight.

[0085] In addition, the unlocking mechanism 8 in the present application directly lifts the cover plate 1 in the third direction to realize the transition of the cover plate 1 from the closed position to the open position, which has a simple structure and is easy to operate.

[0086] The cover plate 1 and the mounting seat 11 can be integrally formed, or the mounting seat 11 can be detachably mounted on the cover plate 1.

[0087] In an alternative embodiment, the printer body 2 is provided with a first mounting portion, and the first mounting portion is provided with a first through hole; the cover plate 1 is provided with a second mounting portion, and the second mounting portion is provided with a second through hole, and the first through hole and the second through hole are concentric; a pin shaft is inserted into the first through hole and the second through hole, so that the cover plate 1 can rotate around the axis of the pin shaft to be located in the open position or the closed position. Specifically, the pin shaft and the first through hole and the second through hole are detachably connected in rotation, and when the printer needs to be repaired or maintained, the pin shaft can be detached from the first through hole and the second through hole, so that the cover plate 1 can be detached from the printer body 2, thereby facilitating maintenance and repair.

[0088] In an alternative embodiment, the printer further comprises a blocking piece, which is detachably arranged on the printer body 2, and the blocking piece is used to prevent the pin shaft from being separated from the first through hole and the second through hole. By arranging the blocking piece to prevent the pin shaft from being separated from the first through hole and the second through hole, the installation stability between the cover plate 1 and the printer body 2 is effectively improved, so that the cover plate 1 can be prevented from being separated from the printer body 2 in the process of transportation or falling of the printer.

[0089] In an alternative embodiment, the connecting rod 6 comprises a first extension section 61 and a second extension section 62, and along the first direction, the first extension section 61 and the second extension section 62 are respectively located on both sides of the axial direction of the rubber roller 9.

[0090] The clamping groove of the clamping buckle assembly 3 comprises a first clamping groove 311 and a second clamping groove 321, and the first clamping groove 311 and the second clamping groove 321 are arranged in a spaced manner along the first direction.

[0091] In the state that the cover plate 1 is in the closed position, the first extension section 61 is clamped in the first clamping groove 311, and the second extension section 62 is clamped in the second clamping groove 321.

[0092] Further, as shown in Figure 2 and Figure 3 The connecting rod 6 comprises a first extension section 61 and a second extension section 62, which are respectively located on both sides of the axial direction of the rubber roller 9, and the axial direction of the rubber roller 9 is the same as the first direction; the first extension section 61 is clamped with the mounting seat 11 of the cover plate 1, and the second extension section 62 is clamped with the mounting seat 11 of the cover plate 1.

[0093] As shown in Figure 4 and Figure 5 The buckle assembly 3 is provided with a first clamping groove 311 and a second clamping groove 321, and specifically, the first clamping groove 311 and the second clamping groove 321 are arranged in the first direction; in the closed position, the first extension section 61 is clamped in the first clamping groove 311, and the second extension section 62 is clamped in the second clamping groove 321, so that the cover plate 11 is in the closed position; when the cover plate 1 needs to be moved from the closed position to the open position, the unlocking mechanism 8 can lift the cover plate 1, and the first extension section 61 will be separated from the first clamping groove 311, and the second extension section 62 will be separated from the second clamping groove 321, so that the cover plate 1 is moved to the open position.

[0094] The printer provided in the application has simple structure, and the buckle assembly 3 occupies a smaller space in the printer, so that the structure of the printer is more compact, the volume of the printer is reduced, and the lightweight of the printer is realized.

[0095] The print head 4 adopts line point heating control technology, and the temperature and time of each heating point are controlled to heat the coating layer on the thermal sensitive paper to color change, so as to form characters or graphics.

[0096] In an alternative embodiment, the buckle assembly 3 comprises a first mounting plate 31 and a second mounting plate 32, the first mounting plate 31 and the second mounting plate 32 are spaced apart in the first direction, the first clamping groove 311 is formed in the first mounting plate 31, and the second clamping groove 321 is formed in the second mounting plate 32; the height direction of the printer body 2 is the third direction, the direction perpendicular to the first direction and the third direction is the second direction; the first clamping groove 311 and the second clamping groove 321 each comprise a first side wall 315, a second side wall 316 and an opening 317, the first side wall 315 and the second side wall 316 are oppositely arranged in the second direction, the first side wall 315 comprises a first segment 3151 and a second segment 3152 connected in sequence, the first segment 3151 is close to the opening 317, and the second side wall 316 comprises a third segment 3161, a fourth segment 3162, a fifth segment 3163 and a sixth segment 3164 connected in sequence, the third segment 3161 is close to the opening 317, the fourth segment 3162 is closer to the first side wall 315 than the sixth segment 3164, and the sixth segment 3164 and the second segment 3152 are oppositely arranged in the second direction.

[0097] In the state that the cover plate 1 is in the closed position, the connecting rod 6 is located between the sixth segment 3164 and the second segment 3152, and the fifth segment 3163 limits the connecting rod 6 from being separated from the clamping groove.

[0098] Firstly, it is referred to that the printer body 2 is placed on a flat table top, the cavity 21 is open toward the side away from the table top, the height direction of the printer body 2 is the third direction, and the first direction and the second direction are both perpendicular to the third direction.

[0099] As shown in Figure 4 , Figure 5 and Figure 6 , the buckle assembly 3 comprises a first mounting plate 31 and a second mounting plate 32, the first mounting plate 31 and the second mounting plate 32 are spaced apart in the first direction, the first clamping groove 311 is formed in the first mounting plate 31, and the second clamping groove 321 is formed in the second mounting plate 32, and the print head 4 is arranged between the first mounting plate 31 and the second mounting plate 32.

[0100] Among them, the first clamping groove 311 and the second clamping groove 321 each comprise a first side wall 315, a second side wall 316 and an opening 317, and the first clamping groove 311 is taken as an example for description in this embodiment.

[0101] Specifically, as shown in Figure 6As shown, the first clamping groove 311 comprises a first side wall 315, a second side wall 316 and an opening 317; the opening 317 is upward in the third direction, and the opening 317 is between the first side wall 315 and the second side wall 316; the first extending section 61 enters the first clamping groove 311 from the opening 317.

[0102] As shown, the first side wall 315 comprises a first segment 3151 and a second segment 3152 connected in sequence, and the first segment 3151 is closer to the opening 317 than the second segment 3152; the second side wall 316 comprises a third segment 3161, a fourth segment 3162, a fifth segment 3163 and a sixth segment 3164 connected in sequence, and the third segment 3161 is closer to the opening 317 than the fourth segment 3162, the fifth segment 3163 and the sixth segment 3164; it can be understood that the first extending section 61 passes through the first segment 3151 and the third segment 3161 first, so that the first extending section 61 enters the inside of the first clamping groove 311 and is between the second segment 3152 and the sixth segment 3164. Figure 6 In an optional implementation, the first segment 3151 is opposite to the third segment 3161; and / or, the fourth segment 3162 is parallel to the sixth segment 3161; and / or, the sixth segment 3161 is parallel to the second segment 3152.

[0103] In an optional implementation, the fourth segment 3162 is parallel to the sixth segment 3164 in the second direction, and the fourth segment 3162 is closer to the first side wall 315 than the sixth segment 3164; and the fifth segment 3163 connects the fourth segment 3162 and the sixth segment 3164; therefore, when the first extending section 61 is between the second segment 3152 and the sixth segment 3164, the fifth segment 3163 can limit the movement of the first extending section 61 in the third direction to the direction of the opening 317, so as to avoid the first extending section 61 from leaving the first clamping groove 311.

[0104] In an optional implementation, the first segment 3151 is opposite to the second segment 3152; and / or, the fourth segment 3162 is parallel to the sixth segment 3161; and / or, the sixth segment 3161 is parallel to the second segment 3152.

[0105] In an optional implementation, the first segment 3151 and the second segment 3152 form a first included angle a, and the first included angle a is an acute angle;

[0106] The third segment 3161 and the fourth segment 3162 form a second included angle b, the fourth segment 3162 and the fifth segment 3163 form a third included angle c, the second included angle b is an acute angle, the third included angle c is an acute angle, and the fourth included angle d is an obtuse angle.

[0107] In an optional implementation, the first segment 3151 is opposite to the second segment 3152; and / or, the fourth segment 3162 is parallel to the sixth segment 3161; and / or, the sixth segment 3161 is parallel to the second segment 3152.

[0108] Wherein, the acute angle ranges between 180°-360°; the obtuse angle ranges between 0°-180°.

[0109] Specifically, as shown in Figure 6 the first segment 3151 and the second segment 3152 form a first included angle a, the first included angle a is towards the inside of the first clamping slot 311, and the first included angle a is an acute angle; the third segment 3161 and the fourth segment 3162 form a second included angle b, the second included angle b is towards the inside of the first clamping slot 311, and the second included angle b is an acute angle; the fourth segment 3162 and the fifth segment 3163 form a third included angle c, the third included angle c is towards the inside of the first clamping slot 311, and the third included angle c is an acute angle; the fifth segment 3163 and the sixth segment 3164 form a fourth included angle d, the fourth included angle d is towards the inside of the first clamping slot 311, and the fourth included angle d is an obtuse angle; further, the first segment 3151 is oppositely arranged with the third segment 3161, the first included angle a between the first segment 3151 and the second segment 3152 is an acute angle, and the second included angle b between the third segment 3161 and the fourth segment 3162 is an acute angle, so the distance between the first segment 3151 and the third segment 3161 gradually decreases, that is, the distance at the opening 317 is the largest, so as to facilitate the first extension segment 61 to enter the first clamping slot 311; the fourth included angle d between the fifth segment 3163 and the sixth segment 3164 is an obtuse angle, when the first extension segment 61 enters the first clamping slot 311, the first extension segment 61 is located between the sixth segment 3164 of the first clamping slot 311 and the second segment 3152 of the first clamping slot 311, and the fifth segment 3163 of the first clamping slot 311 can limit the first extension segment 61 from directly leaving the first clamping slot 311.

[0110] Wherein, the buckle assembly 3 is mounted on the printer main body 2 as a whole, and other components can also be mounted on the buckle assembly 3, for example, the print head 4 is mounted on the buckle assembly 3.

[0111] In an alternative embodiment, the first mounting plate 31 is provided with a first slot 312 and a second slot 313.

[0112] In another specific embodiment, the second mounting plate 32 is provided with a third slot 322 and a fourth slot 323.

[0113] In another specific embodiment, the first mounting plate 31 is provided with a first slot 312 and a second slot 313; the second mounting plate 32 is provided with a third slot 322 and a fourth slot 323. This embodiment will be described as an example.

[0114] Specifically, as shown in Figure 4 and Figure 5As shown, the first mounting plate 31 is further provided with a first slot 312 and a second slot 313, the first slot 312 and the second slot 313 are arranged in the second direction, the first slot 312 and the second slot 313 are below the first clamping slot 311 in the third direction, the first slot 312 is communicated with the first clamping slot 311, the second slot 313 is communicated with the first clamping slot 311, the first slot 312 is close to the first side wall 315 relative to the second slot 313, the first slot 312 can improve the elastic deformation of the first side wall 315 of the first clamping slot 311, the second slot 313 is close to the second side wall 316 relative to the first slot 312, the second slot 313 can improve the elastic deformation of the second side wall 316 of the first clamping slot 311.

[0115] The second mounting plate 32 is further provided with a third slot 322 and a fourth slot 323, the third slot 322 and the fourth slot 323 are arranged in the second direction, the third slot 322 and the fourth slot 323 are below the second clamping slot 321 in the third direction, the third slot 322 is communicated with the second clamping slot 321, the fourth slot 323 is communicated with the second clamping slot 321, the third slot 322 is close to the first side wall 315 of the second clamping slot 321 relative to the fourth slot 323, the third slot 322 can improve the elastic deformation of the first side wall 315 of the second clamping slot 321, the fourth slot 323 is close to the first side wall 315 of the second clamping slot 321 relative to the third slot 322, the fourth slot 323 can improve the elastic deformation of the second side wall 316 of the second clamping slot 321.

[0116] The axis of the second direction intersects with the axis of the third direction.

[0117] In an optional embodiment, as shown in the accompanying drawings, Figure 3 As shown, the cover plate 1 is provided with a first avoiding slot 12 and a second avoiding slot 13, the first avoiding slot 12 and the second avoiding slot 13 are arranged in the first direction; in the state that the cover plate 1 is in the closed position, the part of the first mounting plate 31 close to the cover plate 1 is located in the first avoiding slot 12, so as to avoid that the first mounting plate 31 and the cover plate 1 abut to be unable to close, the part of the second mounting plate 32 close to the cover plate 1 is located in the second avoiding slot 13, so as to avoid that the second mounting plate 32 and the cover plate 1 abut to be unable to close.

[0118] In an alternative embodiment, the mounting base 11 has a mounting groove, the connecting rod 6 is clamped in the mounting groove, the outer diameter of the connecting rod 6 is smaller than the inner diameter of the mounting groove, and the connecting rod 6 is configured to be able to sway relative to the mounting base in a direction perpendicular to the first direction; therefore, when the cover plate 1 moves from the open position to the closed position, the connecting rod 6 can automatically adjust during the process of cooperating with the clamping groove, so that the connecting rod 6 can be accurately clamped in the clamping groove.

[0119] In an alternative embodiment, the mounting base 11 is provided with a first mounting groove 1111 and a second mounting groove 1121, the first mounting groove 1111 and the second mounting groove 1121 are arranged in the first direction, a part of the first extension section 61 is clamped in the first mounting groove 1111, a part of the second extension section 62 is clamped in the second mounting groove 1121, the outer diameter of the first extension section 61 is smaller than the inner diameter of the first mounting groove 1111, and the outer diameter of the second extension section 62 is smaller than the inner diameter of the second mounting groove 1121; the connecting rod 6 is configured to be able to sway relative to the mounting base 11 in a direction perpendicular to the first direction.

[0120] As shown in Figure 3 , the mounting base 11 is provided with a first mounting groove 1111 and a second mounting groove 1121; wherein the mounting base 11 includes a third mounting plate 111 and a fourth mounting plate 112, the third mounting plate 111 and the fourth mounting plate 112 are arranged in the first direction, the thickness direction of the third mounting plate 111 is the first direction, the thickness direction of the fourth mounting plate 112 is the first direction, the first mounting groove 1111 is opened on the third mounting plate 111 and penetrates the third mounting plate 111 in the first direction, and the second mounting groove 1121 is opened on the fourth mounting plate 112 and penetrates the fourth mounting plate 112 in the first direction; a part of the first extension section 61 is clamped in the first mounting groove 1111, and a part of the second extension section 62 is clamped in the second mounting groove 1121; specifically, the connecting rod 6 is a cylinder, the axial direction of the connecting rod 6 is the first direction, the length of the first extension section 61 in the first direction is greater than the thickness of the third mounting plate 111, and the length of the second extension section 62 in the first direction is greater than the thickness of the fourth mounting plate 112; therefore, only a part of the first extension section 61 is clamped in the first mounting groove 1111, and only a part of the second extension section 62 is clamped in the second mounting groove 1121; therefore, when the cover plate 1 is in the closed position, the first extension section 61 can be clamped in the first clamping groove 311, and the second extension section 62 can be clamped in the second clamping groove 321.

[0121] Further, the outer diameter of the first extension segment 61 is smaller than the inner diameter of the first mounting groove 1111, and the first extension segment 61 is movable relative to the first mounting groove 1111, which means that the first extension segment 61 can shake or move relative to the first mounting groove 1111 along the radial direction of the connecting rod 6; the outer diameter of the second extension segment 62 is smaller than the inner diameter of the second mounting groove 1121, and the second extension segment 62 is movable relative to the second mounting groove 1121, which means that the second extension segment 62 can shake or move relative to the second mounting groove 1121 along the radial direction of the connecting rod 6; therefore, when moving from the open position to the closed position, the first extension segment 61 can be automatically adjusted when cooperating with the first clamping groove 311, so that the first extension segment 61 can be accurately clamped in the first clamping groove 311, and the second extension segment 62 can be automatically adjusted when cooperating with the second clamping groove 321, so that the second extension segment 62 can be accurately clamped in the second clamping groove 321.

[0122] In an alternative embodiment, the printer further comprises a first elastic member 5, which is arranged between the print head 4 and the buckle assembly 3 in the second direction.

[0123] As shown in Figure 4 , one end of the first elastic member 5 is connected with the print head 4, and the other end of the first elastic member 5 is connected with the buckle assembly 3, and the compression direction of the first elastic member 5 is the second direction.

[0124] In the state that the cover plate 1 is in the closed position, a paper passing channel can be formed between the print head 4 and the rubber roller 9; wherein the rubber roller 9 can press the print head 4 in the second direction, so as to compress the first elastic member 5, so as to avoid deforming the print head 4, and the first elastic member 5 also provides an elastic force to the print head 4 towards the rubber roller 9, so that the print head 4 and the rubber roller 9 are in close contact, and the heat-sensitive printing paper can pass through the paper passing channel between the print head 4 and the rubber roller 9, so that the heat-sensitive printing paper can be in good contact with the print head 4, so as to facilitate the print head 4 to print on the heat-sensitive printing paper, thereby improving the printing quality.

[0125] The first elastic member 5 can be a spring or a spring piece; the first elastic member 5 can be provided with one, two, three or four.

[0126] In an alternative embodiment, the printer further comprises a driving mechanism 7, which comprises a motor 71 and a transmission assembly 72, and the motor 71 can drive the transmission assembly 72 to rotate;

[0127] The buckle assembly 3 further comprises a receiving groove 314, which is arranged adjacent to the clamping groove, and the transmission assembly 72 is arranged in the receiving groove 314;

[0128] The transmission assembly 72 comprises at least one first gear 721, and the end of the connecting rod 6 is provided with a second gear 63, which is engaged with the first gear 721 when the cover plate 1 is in the closed position.

[0129] As shown in Figure 4 and Figure 5 The printer further comprises a driving mechanism 7, which comprises a motor 71 and a transmission assembly 72 arranged in the accommodating groove 314.

[0130] Further, the transmission assembly 72 comprises at least one first gear 721. It can be understood that the transmission assembly 72 comprises one first gear 721, two first gears 721, three first gears 721 or more first gears 721. If there are two first gears 721, one of the first gears 721 is connected with the output shaft of the motor 71, and the other first gear 721 is engaged with the first gear 721. If there are three first gears 721, one of the first gears 721 is connected with the output shaft of the motor 71, and the three first gears 721 are connected in sequence.

[0131] Further, the end of the first extension section 61 is provided with a second gear 63, which is engaged with the first gear 721 when the cover plate 1 is in the closed position. The motor 71 can drive the second gear 63 to rotate through the transmission assembly 72, so as to drive the rubber roller 9 to rotate, thereby realizing the conveying of the thermal sensitive printing paper.

[0132] In an alternative embodiment, the printer comprises: the unlocking mechanism 8 moves from the initial position to the unlocking position, the unlocking mechanism 8 lifts the cover plate 1, the connecting rod 6 is separated from the buckle assembly 3, and the cover plate 1 is moved away from the closed position.

[0133] In an alternative embodiment, the cover plate 1 is provided with an unlocking slope corresponding to the position of the unlocking mechanism 8. During the movement of the unlocking mechanism 8 from the initial position to the unlocking position, the unlocking mechanism 8 can act on the unlocking slope to move the cover plate 1 away from the closed position. Specifically, when the unlocking mechanism 8 acts on the unlocking slope, the connecting rod 6 can be driven to separate from the buckle assembly 3 through the action on the cover plate 1, thereby realizing the movement of the cover plate 1 from the closed position to the open position. The arrangement of the unlocking slope can reduce the action distance between the unlocking mechanism 8 and the cover plate 1, so that the cover plate 1 can be opened by applying a smaller external force.

[0134] In an alternative embodiment, the unlocking mechanism 8 comprises a first unlocking portion 81, a second unlocking portion 82 and a connecting rod 83, the first unlocking portion 81 and the second unlocking portion 82 are arranged in the first direction; the first unlocking portion 81 comprises a first end 811, a second end 812 and a first connecting portion 813, the first connecting portion 813 is located between the first end 811 and the second end 812, and the first connecting portion 813 is rotatably connected with the printer body 2; the second unlocking portion 82 comprises a third end 822, a fourth end 823 and a second connecting portion 824, the second connecting portion 824 is located between the third end 822 and the fourth end 823, and the second connecting portion 824 is rotatably connected with the printer body 2; one end of the connecting rod 83 is connected with the second end 812, and the other end of the connecting rod 83 is connected with the fourth end 823; by pressing the second end 812 or the fourth end 823, the first end 811 moves upward in the third direction, and the third end 822 moves upward in the third direction, so as to change the cover plate 1 from the closed position to the open position.

[0135] As shown in Figure 1 and Figure 2 the unlocking mechanism 8 comprises a first unlocking portion 81, a second unlocking portion 82 and a connecting rod 83; wherein the first unlocking portion 81 and the second unlocking portion 82 are arranged in the first direction, and the connecting rod 83 connects the first unlocking portion 81 and the second unlocking portion 82, so that the first unlocking portion 81 and the second unlocking portion 82 can work simultaneously.

[0136] Specifically, the first unlocking portion 81 comprises a first end 811, a second end 812 and a first connecting portion 813, the first connecting portion 813 is located between the first end 811 and the second end 812, and the first connecting portion 813 is rotatably connected with the printer body 2, so that when the first connecting portion 813 rotates relative to the printer body 2, if the second end 812 rotates downward in the third direction, the first end 811 moves upward in the third direction, so that the first end contacts the inner side of the cover plate 1, and the cover plate 1 is lifted up by the first end 811 in the process of moving upward, and the first side wall 315 or the second side wall 316 of the first clamping groove 311 will be elastically deformed in order to facilitate the first extension 61 to disengage from the first clamping groove 311.

[0137] The second unlocking portion 82 comprises a third end 822, a fourth end 823 and a second connecting portion 824, the second connecting portion 824 is located between the third end 822 and the fourth end 823, the second connecting portion 824 is rotationally connected with the printer main body 2, the second connecting portion 824 can rotate around the axis in the first direction, so when the second connecting portion 824 rotates relative to the printer main body 2, if the fourth end 823 rotates downward along the third direction, the third end 822 will move upward in the third direction, so that the third end 822 contacts the inner side of the cover plate 1, and the cover plate 1 is lifted up by the third end 822 in the process of moving upward, in the process of the second extending segment 62 being separated from the second clamping groove 321, the first side wall 315 or the second side wall 316 of the second clamping groove 321 will be elastically deformed to facilitate the second extending segment 62 to be separated from the second clamping groove 321.

[0138] Further, one end of the connecting rod 83 is connected with the second end 812 of the first unlocking portion 81, and the other end of the connecting rod 83 is connected with the second end 812 of the second unlocking portion 82, so that the first unlocking portion 81 and the second unlocking portion 82 can work at the same time to simultaneously lift the cover plate 1 in the first direction along the third direction, so that the first extending segment 61 and the second extending segment 62 can be simultaneously separated to improve the unlocking efficiency.

[0139] In an alternative embodiment, the printer main body 2 is provided with a third connecting portion, the connecting rod 83 is rotationally connected with the third connecting portion to rotate the unlocking mechanism 8 between the initial position and the unlocking position; in this embodiment, the connecting rod 83 is rotationally connected with the printer main body 2 to provide support for the connecting rod 83, so as to improve the stability of the unlocking mechanism 8 during operation.

[0140] In this embodiment, the connecting rod 83 is integrally provided with the first unlocking portion 81 and the second unlocking portion 82.

[0141] In an alternative embodiment, the printer further comprises a switch assembly and a housing, the printer main body 2 is arranged inside the housing, the switch assembly is arranged on the housing, the switch assembly abuts against the first unlocking portion 81 or the second unlocking portion 82, and the unlocking mechanism 8 can be moved from the initial position to the unlocking position by the switch assembly; therefore, the unlocking mechanism 8 is pressed by the switch assembly to lift the cover plate 1, so that the cover plate 1 is moved from the closed position to the open position. The switch assembly is arranged on the housing, so that the user can press the unlocking mechanism 8 through the switch assembly.

[0142] In an optional embodiment, the unlocking mechanism 8 further includes a second elastic member 84, and a connector 821 is provided between the fourth end 823 and the second connecting part 824. One end of the second elastic member 84 is connected to the printer body 2, and the other end of the second elastic member 84 is connected to the connector 821. By releasing the second end 812 or the fourth end 823, the second elastic member 84 causes the second unlocking part 82 and the first unlocking part 81 to reset from the unlocked position to the initial position.

[0143] like Figure 1 and Figure 2 As shown, the unlocking mechanism 8 also includes a second elastic element 84. One end of the second elastic element 84 is connected to the printer body 2, and the other end of the second elastic element 84 is connected to the connector 821. The elastic direction of the second elastic element 84 is the third direction.

[0144] Specifically, when the second end 812 and the fourth end 823 are pressed down along the third direction, the second elastic member 84 is squeezed along the third direction. That is, the unlocking mechanism 8 changes from the initial position to the unlocked position, thereby moving the cover 1 from the closed position to the open position. After the cover 1 is moved to the open position, by releasing the second end 812 or the fourth end 823, the second end 812 or the fourth end 823 loses the force of moving down along the third direction, and the second elastic member 84 will cause the unlocking mechanism 8 to return from the unlocked position to the initial position, ready to open the cover 1 again.

[0145] The second elastic element 84 can be a spring.

[0146] In one optional embodiment, the printer further includes a photoelectric sensor having a sensing head positioned corresponding to the rubber roller; when the cover plate is in the closed position, the rubber roller covers the sensing head; the photoelectric sensor detects whether the cover plate 1 is in the closed or open position; when the cover plate 1 is detected to be in the open position, some functions of the printer are unusable; if the cover plate 1 is in the open position and the printer is working normally, some internal components of the printer may cause injury to the user.

[0147] When the cover plate is in the closed position, the gap between the rubber roller and the sensor head allows the printing paper to pass through.

[0148] While certain embodiments of the application have been described by way of example with specific reference to the drawings, it will be appreciated that the application is not limited by any of the examples described. It will be further appreciated that modifications can be made to the described embodiments without departing from the scope and spirit of the application. The scope of the application is defined in the claims that follow.

Claims

1. A printer characterized by comprising: The printer comprises: a printer body provided with a cavity for placing a thermal printing paper; a cover plate rotatably connected with the printer body, the cover plate being movable relative to the printer body to an open position and a closed position, the cover plate being provided with a mounting seat; a connecting rod provided with a rubber roller, the connecting rod being rotatably arranged in the mounting seat, the axial direction of the connecting rod being a first direction; a buckle assembly provided on the printer body, the buckle assembly having a buckle slot arranged at a position corresponding to an end of the connecting rod; a print head arranged on the buckle assembly; an unlocking mechanism provided on the printer body, the unlocking mechanism comprising an initial position and an unlocking position; when the cover plate is in the closed position, the connecting rod is in engagement with the buckle slot, the cover plate covers the cavity, the unlocking mechanism is in the initial position, a paper feeding channel is formed between the rubber roller and the print head, the paper feeding channel is in communication with the cavity, and the rubber roller is rotated by rotating the connecting rod about its own axis to drive the thermal printing paper in the cavity to pass out of the paper feeding channel to the outside of the cavity.

2. The printer of claim 1, wherein, The printer body is provided with a first mounting portion, and the first mounting portion is provided with a first through hole; The cover plate is provided with a second mounting portion, and the second mounting portion is provided with a second through hole, and the first through hole is concentric with the second through hole; The first through hole and the second through hole are inserted with a pin shaft, so that the cover plate can rotate about the axis of the pin shaft to be located in the open position or the closed position.

3. The printer of claim 2, wherein, The printer further comprises a blocking piece which is detachably arranged on the printer body and is used to prevent the pin shaft from being separated from the first through hole and the second through hole.

4. The printer according to claim 1, wherein: the connecting rod comprises a first extension section and a second extension section, and along the first direction, the first extension section and the second extension section are respectively located at two ends of the rubber roller; the buckle slot of the buckle assembly comprises a first buckle slot and a second buckle slot, and the first buckle slot and the second buckle slot are arranged at intervals along the first direction; when the cover plate is in the closed position, the first extension section is arranged in the first buckle slot, and the second extension section is arranged in the second buckle slot.

5. The printer of claim 4, wherein, The buckle assembly comprises a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are arranged at intervals along the first direction, the first buckle slot is arranged in the first mounting plate, and the second buckle slot is arranged in the second mounting plate; the height direction of the printer body is a third direction, and the direction perpendicular to the first direction and the third direction is a second direction; The first clamping groove and the second clamping groove each comprise a first side wall, a second side wall and an opening, the first side wall and the second side wall are oppositely arranged along a second direction, the first side wall comprises a first segment and a second segment connected in sequence, the first segment is close to the opening, the second side wall comprises a third segment, a fourth segment, a fifth segment and a sixth segment connected in sequence, the third segment is close to the opening, the fourth segment is closer to the first side wall than the sixth segment, and the sixth segment is oppositely arranged with the second segment along the second direction; In a state where the cover plate is in a closed position, the connecting rod is located between the sixth segment and the second segment, and the fifth segment limits the connecting rod from being separated from the clamping groove.

6. The printer according to claim 5, wherein The first segment is oppositely arranged with the third segment; And / or, the fourth segment is parallelly arranged with the sixth segment; And / or, the sixth segment is parallelly arranged with the second segment.

7. The printer of claim 5, wherein, A first included angle is formed between the first segment and the second segment, and the first included angle is an acute angle; A second included angle is formed between the third segment and the fourth segment, a third included angle is formed between the fourth segment and the fifth segment, and a fourth included angle is formed between the fifth segment and the sixth segment, the second included angle is an acute angle, and the third included angle is an acute angle.

8. The printer of claim 7, wherein, The fourth included angle is an obtuse angle.

9. The printer of claim 5, wherein, The first mounting plate is further provided with a first slot and a second slot, the first slot and the second slot are spaced apart in the second direction, the first slot and the second slot are both located below the first clamping groove in a third direction, the first slot is in communication with the first clamping groove, the second slot is in communication with the first clamping groove, the first slot is closer to the first side wall than the second slot, and the second slot is closer to the second side wall than the first slot; and / or The second mounting plate is further provided with a third slot and a fourth slot, the third slot and the fourth slot are spaced apart in the second direction, the third slot and the fourth slot are both located below the second clamping groove in the third direction, the third slot is in communication with the second clamping groove, the fourth slot is in communication with the second clamping groove, the third slot is closer to the first side wall of the second clamping groove than the fourth slot, and the fourth slot is closer to the second side wall of the second clamping groove than the third slot.

10. The printer of claim 5, wherein, The cover plate is provided with a first avoiding slot and a second avoiding slot, the first avoiding slot and the second avoiding slot are spaced apart in the first direction; In a state where the cover plate is in a closed position, a portion of the first mounting plate close to the cover plate is located in the first avoiding slot, and a portion of the second mounting plate close to the cover plate is located in the second avoiding slot.

11. The printer of claim 1, wherein, The mounting seat is provided with a mounting slot, the connecting rod is clamped in the mounting slot, an outer diameter of the connecting rod is smaller than an inner diameter of the mounting slot, and the connecting rod is configured to be able to shake relative to the mounting seat along a direction perpendicular to the first direction.

12. The printer of claim 4, wherein, The mounting seat is provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are arranged at intervals in the first direction, part of the first extension section is clamped in the first mounting groove, part of the second extension section is clamped in the second mounting groove, the outer diameter of the first extension section is smaller than the inner diameter of the first mounting groove, and the outer diameter of the second extension section is smaller than the inner diameter of the second mounting groove. The connecting rod is configured to be able to sway relative to the mounting seat in a direction perpendicular to the first direction.

13. The printer of claim 1, wherein, The printer further comprises a first elastic member arranged between the printhead and the buckle assembly in the second direction.

14. The printer of claim 1, wherein, The printer further comprises a driving mechanism, the driving mechanism comprises a motor and a transmission assembly, and the motor is capable of driving the transmission assembly to rotate. The buckle assembly further comprises a receiving groove arranged adjacent to the clamping groove, and the transmission assembly is arranged in the receiving groove. The transmission assembly comprises at least one first gear, and the end of the connecting rod is provided with a second gear, and in the state that the cover plate is in the closed position, the second gear is engaged with the first gear.

15. The printer of claim 1, wherein, The printer comprises: The unlocking mechanism moves from the initial position to the unlocking position, the unlocking mechanism lifts the cover plate, the connecting rod is separated from the buckle assembly, and the cover plate is moved away from the closed position.

16. The printer of claim 15, wherein, The cover plate is provided with an unlocking slope corresponding to the position of the unlocking mechanism; During the movement of the unlocking mechanism from the initial position to the unlocking position, the unlocking mechanism can act on the unlocking slope to move the cover plate away from the closed position.

17. The printer of claim 15, wherein, The unlocking mechanism comprises a first unlocking part, a second unlocking part and a connecting rod, and the first unlocking part and the second unlocking part are arranged at intervals in the first direction. The first unlocking part comprises a first end, a second end and a first connecting part, the first connecting part is located between the first end and the second end, and the first connecting part is rotationally connected with the printer body; The second unlocking part comprises a third end, a fourth end and a second connecting part, the second connecting part is located between the third end and the fourth end, and the second connecting part is rotationally connected with the printer body; One end of the connecting rod is connected with the second end, and the other end of the connecting rod is connected with the fourth end; By pressing the second end or the fourth end, the first end moves upward in the third direction, and the third end moves upward in the third direction to change the cover plate from the closed position to the open position.

18. The printer of claim 17, wherein, The printer body is provided with a third connecting part, the connecting rod is rotationally connected with the third connecting part to rotate the unlocking mechanism between the initial position and the unlocking position.

19. The printer of claim 17, wherein, The printer further comprises a housing and a switch assembly, the switch assembly is arranged in the housing, the switch assembly abuts against the first unlocking part or the second unlocking part, and the unlocking mechanism can be triggered from the initial position to the unlocking position through the switch assembly.

20. The printer of claim 17, wherein, The unlocking mechanism further comprises a second elastic member, one end of the second elastic member is connected with the printer main body, and the other end of the second elastic member is connected with the connecting member; By releasing the second end or the fourth end, the second elastic member enables the second unlocking part and the first unlocking part to reset from the unlocking position to the initial position.

21. The printer of claim 1, wherein, The photoelectric sensor comprises a sensing light head arranged at a position corresponding to the rubber roller. In a state where the cover plate is in the closed position, the rubber roller covers the sensing light head.

22. The printer of claim 21, wherein, In a state where the cover plate is in the closed position, a gap between the rubber roller and the sensing light head is provided for the printing paper to pass through.

Images