CN114905861A

CN114905861A - Compact intelligent printer

Info

Publication number: CN114905861A
Application number: CN202210431576.8A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xiamen Hanyin Electronic Technology Co Ltd
Current assignee: Xiamen Hanyin Electronic Technology Co Ltd
Priority date: 2021-04-22
Filing date: 2022-04-22
Publication date: 2022-08-16
Anticipated expiration: 2042-04-22
Also published as: CN113334939A; CN114905861B; CN217705195U; CN217705194U

Abstract

The invention discloses a compact intelligent printer, which comprises a seat body, a cover body and a printing assembly, wherein the cover body is detachably fixed on the seat body so as to be capable of being switched between an uncovering state and a covering state, and the printing assembly is jointed with the seat body; the printing assembly has: a thermal head; a platen roller configured to be rotatable about a first axis; a support member for supporting and positioning the thermal head, the support member being provided to be rotatable about a second axis; and an actuating member for driving the support member in rotation, the actuating member being arranged to be rotatable about a third axis; the first axis and the second axis are arranged in parallel, and the second axis and the third axis are arranged in parallel or overlapped; the cover body is provided with a driving part which is set to drive the actuating member to rotate in the cover closing process so that the thermosensitive head positioned on the supporting member approaches the paper pressing roller to clamp the recording paper. The printer has the advantages of more miniaturized appearance, more compact space and convenient carrying.

Description

Compact intelligent printer

Technical Field

The invention relates to the technical field of printers, in particular to a compact intelligent printer.

Background

Along with the improvement of the living standard, people pursue the quality of life and the convenience degree of life more and more, the portable printer which can improve the quality of life and enable life to be more convenient is correspondingly appeared on the market, and the portable printer can print out characters and can also print figures and photos. The name and the quality guarantee period of the article can be printed in life, a user can be helped to find the article more quickly, the quality guarantee period of the article is reminded, the user can use the article within the quality guarantee period, and the article is prevented from being overdue due to long-term non-use. The problem error recording device can be used for printing the problem error of the student in the learning process, helps the student establish the problem error set, can quickly record the problem error, reduces the time for the student to copy and write the problem error set, strives for more learning time for the student, and improves the learning efficiency.

However, the thickness of the existing portable printer is usually 60-70mm, and the size of the portable printer is large, so that the portable printer is not convenient to put into a pocket and carry about, and the application is made in order to solve the problems.

Disclosure of Invention

The invention provides a compact intelligent printer which overcomes the defects in the background art. The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention discloses a compact intelligent printer which comprises a base, a cover body and a printing assembly, wherein the cover body is detachably fixed on the base to be capable of being switched between an uncovering state and a covering state, and the printing assembly is jointed with the base; the printing assembly has: a thermal head; a platen roller configured to be rotatable about a first axis; a support member for supporting and positioning the thermal head, the support member being provided to be rotatable about a second axis; and an actuating member for driving the support member in rotation, the actuating member being arranged to be rotatable about a third axis; the first axis and the second axis are arranged in parallel, and the second axis and the third axis are arranged in parallel or overlapped; the cover body is provided with a driving part which is set to drive the actuating member to rotate in the cover closing process so that the thermosensitive head positioned on the supporting member approaches the paper pressing roller to clamp the recording paper.

Preferably: a return spring is arranged between the support member and the base body, and the return spring is arranged to apply force to the support member in a direction in which the thermal head leaves the platen roller. The support member has a first end portion at which the thermal head is positioned, and a second end portion at which one urging leg of the return spring abuts, and the other urging leg thereof abuts on the seat body. The base body is provided with a pivot shaft, and the supporting component and the actuating component are pivoted on the pivot shaft.

Preferably: an actuating spring is provided between the actuating member and the supporting member, and the actuating spring is arranged so as to urge the actuating member in a direction in which the thermal head approaches the platen roller. The actuating spring is a torsion spring, the main body of the actuating spring is pivoted on the pivoting shaft, and a force applying leg of the actuating spring is abutted on the actuating member and the supporting member. The actuation spring is positioned in a clamping manner between the actuation member and the support member.

Preferably: the actuating spring is arranged so that, after being pressed by the actuating member, the urging force thereof exerted on the support member can drive the support member to rotate in a direction such that the thermal head approaches the platen roller against the reaction force exerted on the support member by the return spring.

Preferably: the actuating spring is arranged such that, after being released by the actuating member, a reaction force applied to the supporting member by the return spring can drive the supporting member to rotate in a direction to separate the thermal head from the platen roller against a force applied to the supporting member by the actuating spring.

Preferably: the actuating component is provided with an abutting part which is pressed by the driving part to drive the actuating component to rotate, and the abutting part is arranged to swing around a third axis within a set angle range. The base comprises a bottom shell and a housing, a mounting cavity is formed between the bottom shell and the housing, a mounting frame detachably fixedly connected with the bottom shell is arranged in the mounting cavity, and the platen roller, the actuating member and the supporting member are rotatably connected to the mounting frame.

Preferably: the printing component is characterized in that the printing component is also provided with a driving unit for driving the paper pressing roller to rotate, the driving unit comprises a motor and a gear transmission mechanism, wherein the motor is arranged on one side of the mounting rack, and the gear transmission mechanism is arranged on the other side, opposite to the motor, of the mounting rack.

Preferably: the mounting cavity is internally provided with a battery unit which is arranged separately from the mounting frame and separably jointed on the bottom shell. The upper surface of the cover shell is recessed downwards to form a paper containing cavity. The mounting cavity is also internally provided with a control panel used for controlling the operation of the printing assembly, and the control panel is jointed on the bottom shell and extends from the lower part of the battery unit to the lower part of the paper accommodating cavity.

Preferably: the base comprises a bottom shell and a housing, an opening facing the bottom shell is formed in the bottom of the housing, the bottom shell is fixedly connected to the bottom of the housing and seals the opening, a paper containing cavity is formed by downward concave of the upper surface of the housing, and the cover body is detachably fixed to the top of the housing.

Preferably: the cover body is detachably fixed on the seat body by the buckle component. The cover body is arranged to push the cover body to be clamped or separated between the seat bodies when force is applied to the cover body along the direction perpendicular to the first axis. The cover body is of a thin structure, and the driving portion and the buckle are integrally formed on the cover body. The cover body is provided with a limiting component used for limiting the play of the recording paper roll, and the limiting component is jointed on the cover body in an ultrasonic welding mode or a clamping mode.

Compared with the background technology, the technical scheme has the following advantages:

1. all printing assemblies all set up in the seat for but the structure design of lid is simpler, and is more laborsaving, convenient uncapping and close the lid in-process, and user convenient to use can also make the appearance of printer more miniaturized, and the space is compacter, conveniently carries.

2. The actuating member and the supporting member are in pivot joint fit with the pivot shaft, and two force applying support legs of the actuating spring respectively press against the actuating member and the supporting member so that the supporting member is in a floatable installation state, so that a gap between the thermal head and the platen roller can adapt to clamping of recording paper with uneven thickness, namely the actuating spring can transmit acting force applied on the supporting member by the actuating member and also provide a floating space for clamping of the recording paper with uneven thickness.

3. The lid closes the in-process accessible drive division of lid and the cooperation of propping of butt portion and drives the thermal head and rotate to the second position from the primary importance, also promptly, closes the lid in-process lid and can drive the thermal head and rotate together, need not additionally to set up actuating mechanism and drive the thermal head and rotate, and the structure is compacter.

4. All printing components are arranged in the mounting cavity and integrated on the mounting support so as to reduce the space occupied by the printing components, and the structure is more compact. Further, all install battery and control panel in the installation intracavity for the battery does not leak outward, and is whole more pleasing to the eye, and battery and mounting bracket separate the setting, in order to do benefit to the configuration of inner space, and the control panel sets up to the sheet structure, and extends to holding the paper chamber by the battery below, has further improved the compact of structure, makes this printer can directly put portable in the pocket.

Drawings

The invention is further illustrated by the following figures and examples.

Fig. 1 is a schematic diagram of the overall structure.

Fig. 2 is a schematic diagram illustrating a separated state of the cover and the base.

Fig. 3 is a side view of the base.

Fig. 4 is a schematic view of the inside of the cover.

Fig. 5 shows a longitudinal sectional view of the printer.

Fig. 6 is a schematic view showing an initial state in which the driving portion pushes the actuating member to rotate.

Fig. 7 is a schematic view showing the final state of the driving part pushing the actuating member to rotate.

Fig. 8 is a first perspective view illustrating the assembly of the printing assembly on the mounting frame.

Fig. 9 is a schematic diagram showing a partial structure of the printing assembly.

Fig. 10 is a schematic perspective view showing the mounting of the printing assembly on the mounting frame.

Fig. 11 is a perspective view showing a third assembly of the printing assembly on the mounting frame.

Fig. 12 shows an exploded view of the mounting of the printing assembly on the mounting frame.

Fig. 13 shows an exploded view two of the printing assembly mounted on the mounting frame.

Fig. 14 shows a cross-sectional view of the mounting of the printing assembly on the mounting frame.

Detailed Description

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" and "fixedly connected" should be interpreted broadly, that is, any connection between the two that is not in a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings of the present invention, the terms "including", "having", and variations thereof, are intended to be inclusive and not limiting.

Example (b):

referring to fig. 1 to 14, the present embodiment provides a compact intelligent printer, which includes a base 10, a cover 20 and a printing assembly, wherein the cover 20 is detachably fixed on the base 10 to be capable of switching between an open state and a closed state. Specifically, when the lid body 20 is slid in the front-rear direction shown in fig. 2, closing and opening can be performed, and in fig. 2, pushing the lid body 20 backward is closing and pushing the lid body 20 forward is opening. The printing component is jointed with the base body 10; the printing assembly has a thermal head 32, a platen roller 30, a support member 31 and an actuating member 35. The thermal head 32 is also called a thermal print head, and thermal transfer is performed by heating. The platen roller 30 is configured to rotate around a first axis, and specifically, the platen roller 30 includes a soft rubber roller and a roller shaft, which is rotatably pivoted to the fixing frame via the roller shaft and can rotate around the axis of the roller shaft, so in this embodiment, the first axis is the central axis of the platen roller 30. The support member 31 is for supporting and positioning the thermal head 32, and specifically, the thermal head 32 is fixed on the side of the support member 31 opposite to the platen roller 30. The support member 31 is arranged to be rotatable about a second axis, in particular, the support member 31 is pivotally connected to a pivot shaft 37, the pivot shaft 37 being integrally formed on the mounting frame 13, neither of which is injection molded. The actuating member 35 is used for driving the supporting member 31 to rotate, the actuating member 35 is arranged to rotate around a third axis, the first axis and the second axis are arranged in parallel, the second axis and the third axis are arranged in parallel or coincidently, in the embodiment, the second axis and the third axis are coincidently arranged, namely, the actuating member 35 and the supporting member 31 are pivoted on the pivoting shaft 37, and the structure is more compact than the parallel arrangement structure. In another embodiment, the second axis may be arranged parallel to the third axis, i.e. the support member 31 and the actuation member 35 are pivoted on different positioning axes, the two positioning axes being arranged parallel to each other. The cover body 20 has a driving portion 21, and the driving portion 21 is provided to be able to drive the actuating member 35 to rotate during closing so that the thermal head 32 positioned on the supporting member 31 approaches the platen roller 30 to nip the recording paper 1. Specifically, the seat body 10 has an insertion groove 19 into which the driving portion 21 is inserted, as shown in fig. 6 and 7, in the open state, the driving portion 21 is located at an entrance of the insertion groove 19, the cover body 20 is further pushed rearward, the driving portion 21 enters the insertion groove 19 to push the actuating member 35 to rotate, and the thermal head 32 mounted on the support member 31 is driven to move in a direction approaching the platen roller 30, and is pressed against the platen roller 30 to clamp the recording paper 1. Specifically, the base body 10 is provided with a printing passage 11 through which the recording paper 1 passes and a platen roller 30 which is located on the side of the printing passage 11 and is rotatable, and the thermal head 32 is rotated between a first position close to the printing passage 11 and a second position away from the printing passage 11.

The platen roller 30 is located below the printing channel 11 and corresponds to the thermal head 32, when the thermal head 3230 is located at the first position, the recording paper 11 is pressed against the platen roller 30, and at this time, the recording paper 11 is output to the paper outlet under the driving of the platen roller 30, and thermal printing is performed while paper is output; when the thermal head 32 is at the second position, the thermal head is away from the platen roller 30, and the paper 1 is free from the pressing force of the thermal head 32, and the paper replacement operation can be performed, or the paper loading operation can be performed when the recording paper 1 is used up.

In a preferred embodiment, as shown in fig. 9, a return spring 36 is disposed between the supporting member 31 and the base 10, and the return spring 36 is a torsion spring having two force-applying legs. The return spring 36 is provided so as to urge the support member 31 in a direction in which the thermal head 32 is separated from the platen roller 30, that is, so that the support member 31 can be rotated toward a direction in which the thermal head 32 is separated from the platen roller 30 by the urging force of the return spring 36 acting on the support member 31. The support member 31 has a first end portion at which the thermal head 32 is positioned, specifically, a side of the first end portion facing the platen roller 30, and a second end portion. A power stabilizer blade butt of reset spring 36 is in on the second tip, its another power stabilizer blade butt is on pedestal 10, specifically, another power stabilizer blade butt is on mounting bracket 13, and mounting bracket 13 is the support body of rigid coupling on drain pan 12, and in this embodiment, the printing unit is dispersedly installed on this mounting bracket 13, and this mounting bracket 13 can further save the installation space of printing unit for the structure is more compact. The base 10 is provided with a pivot shaft 37, and the pivot shaft 37 and the mounting frame 13 are integrally arranged. The support member 31 and the actuating member 35 are both pivoted on the pivot shaft 37, i.e. the support member 31 and the actuating member 35 rotate around the same axis, i.e. the second axis and the third axis coincide.

An actuating spring 33 is arranged between the actuating member 35 and the supporting member 31, specifically, the actuating spring 33 is clamped between the actuating member 35 and the supporting member 31, that is, the cover closing force of the cover body 20 acting on the actuating member 35 is transmitted to the supporting member 31 through the actuating spring 33, and further the supporting member 31 is driven to rotate. The actuator spring 33 is provided so as to urge the actuator member 35 in a direction in which the thermal head 32 approaches the platen roller 30. Specifically, the actuating spring 33 is a torsion spring, and the main body thereof is pivotally connected to the pivot shaft 37, that is, the through hole in the middle of the main body thereof is sleeved on the pivot shaft 37. One force-imparting leg of the actuator spring 33 abuts on the actuator member 35, and the other force-imparting leg of the actuator spring 33 abuts on the support member 31. In order to improve the stability of the actuating spring 33 during the compression process, in the present embodiment, the urging legs of the actuating spring 33 abutting against the actuating member 35 are provided in a U shape, and the urging legs thereof abutting against the supporting member 31 are provided in two left and right spaced apart, which are respectively located at both ends of the main body thereof and both abut against the supporting member 31, and the actuating spring 33 is positioned between the actuating member 35 and the supporting member 31 in a sandwiched manner.

In the following description, in the lid-closed state, the actuation spring 33 is regarded as being in a pressed state, and in the lid-opened state, the actuation spring 33 is regarded as being in a released state, although in the released state, the actuation spring 33 may still receive a certain pressing force to generate a compressive deformation. In the closed state, the cover body 20 and the base body 10 are fastened and the edges thereof are aligned or overlapped, and in the open state, the cover body 20 and the base body 10 are in a staggered state, that is, the edges thereof are staggered by a certain position.

The actuator spring 33 is arranged so that, after being pressed by the actuator member 35, its urging force exerted on the support member 31 can drive the support member 31 to rotate in a direction to bring the thermal head 32 close to the platen roller 30 against the reaction force exerted on the support member 31 by the return spring 36. That is, during the cover closing process, the driving portion 21 is inserted into the insertion groove 19 to push the actuating member 35 to rotate, the actuating member 35 further presses the actuating spring 33, the actuating spring 33 further exerts a force on the supporting member 31, the moment generated by the force acting on the supporting member 31 is larger than the moment generated by the force acting on the supporting member 31 by the return spring 36, and thus the supporting member 31 can be driven to rotate in a direction in which the thermal head 32 approaches the platen roller 30.

The actuator spring 33 is provided so that, after being released by the actuator member 35, the reaction force of the return spring 36 exerted on the support member 31 can drive the support member 31 to rotate in a direction to separate the thermal head 32 from the platen roller 30 against the force exerted on the support member 31 by the actuator spring 33. That is, during the cover opening process, the driving portion 21 is pushed out from the insertion groove 19 to release the actuating member 35, and at this time, the moment generated by the force of the actuating spring 33 acting on the supporting member 31 is smaller than the moment generated by the force of the return spring 36 acting on the supporting member 31, so that the supporting member 31 is rotated in the direction in which the thermal head 32 is separated from the platen roller 30.

The actuating member 35 has an abutting portion that is pressed by the driving portion 21 to drive the actuating member 35 to rotate, and the abutting portion is provided so as to be capable of swinging within a set angle range around a third axis and rotating around a pivot shaft 37. An abutting portion is formed at the top of the actuator member 35, and the abutting portion is shaped like a cam, and the abutting portion is engaged with the driving portion 21 of the lid body 20, and the driving portion 21 is pressed against the abutting portion in the lid closing state, and the abutting portion is released in the lid opening state.

The base 10 comprises a bottom shell 12 and a cover shell 14, a mounting cavity is formed between the bottom shell 12 and the cover shell 14, a mounting frame 13 detachably fixedly connected with the bottom shell 12 is arranged in the mounting cavity, and the platen roller 30, the actuating member 35 and the supporting member 31 are rotatably connected on the mounting frame 13. The printing assembly further comprises a driving unit for driving the platen roller 30 to rotate, the driving unit comprises a motor 50 and a gear transmission mechanism 51, wherein the motor 50 is arranged on one side of the mounting frame 13, the gear transmission mechanism 51 is arranged on the other side, opposite to the motor 50, of the mounting frame 13, and the gear transmission mechanism 51 and the motor 50 are respectively arranged on the opposite side faces of the mounting frame 13. The mounting cavity is provided with a battery unit 40 which is arranged separately from the mounting frame 13 and detachably jointed on the bottom shell 12. The upper surface of the cover case 14 is recessed downward to form a paper accommodating chamber 15. The mounting cavity is also internally provided with a control panel 60 for controlling the operation of the printing component, the control panel 60 is fixedly connected to the bottom shell 12 and extends from the lower part of the battery unit 40 to the lower part of the paper accommodating cavity 15, so that the structure is more compact. The battery unit 40 is a rechargeable battery.

Specifically, the bottom of the casing 14 has an opening facing the bottom shell 12, the bottom shell 12 is fixed to the bottom of the casing 14 and closes the opening, and the cover 20 is detachably fixed to the top of the casing 14. Namely, the top of the housing 14 is fixedly connected with the cover 20, and the bottom of the housing 14 is fixedly connected with the bottom shell 12.

The cover 20 is detachably fixed on the base 10 by a fastening component. The fastening assembly includes a plurality of fastening units, and the cover 20 is configured to push the cover 20 to be fastened or separated between the seat 10 when a force is applied to the cover 20 along a direction perpendicular to the first axis. The cover 20 is provided with a thin structure, specifically, a single-layer sheet structure in the present embodiment, and may be a double-layer sheet structure in other embodiments. The driving portion 21 and the catch are integrally formed on the cover 20. The cover body 20 is provided with a limiting member 22 for limiting the play of the recording paper 1, and the limiting member 22 is joined to the cover body 20 in an ultrasonic welding mode or a clamping mode, in this embodiment, the clamping joint is adopted, that is, a clamping structure is arranged between the two.

Specifically, the fastening structure includes a slot disposed on the base 10 and a hook 23 disposed on the cover 20, and the slot can be inserted into the hook 23. Specifically referring to fig. 3 and 4, the number of the card slots is nine, three of the card slots are first card slots 17 and are arranged at the front of the housing 14 at intervals, four of the card slots are also first card slots 17 and are symmetrically arranged on the left side and the right side of the top of the housing 14 in pairs, and two of the card slots are second card slots 18 and are arranged at the rear of the housing 14 at intervals.

In this embodiment, a guiding inclined surface and a clamping surface parallel to the moving direction of the driving portion 21 are disposed on a side of the driving portion 21 facing the actuating member 35, the actuating member 35 is pressed against the guiding inclined surface during the process of moving the cover 20 from the staggered position to the covering position, and the actuating member 35 is pressed against the clamping surface when the cover 20 is at the covering position. As shown in fig. 6 and 7, the left side of the driving portion 21 is a vertical surface parallel to the moving direction thereof, and the left side of the driving portion 21 is always in fit with the vertical groove wall of the insertion groove 19, and can also play a role in guiding the movement of the driving portion 21. When the cover 20 is in the covering position, the driving portion 21 is sandwiched between the vertical slot wall and the abutting portion, and the driving portion 21 is only subjected to the horizontal acting force applied by the end of the abutting portion, and at this time, if there is no external force, the driving portion 21 is kept at the bottom end of the inserting slot 19 and is not easy to be separated.

In this embodiment, as shown in fig. 4, the inner wall of the cover 20 is provided with a hook 23, the hook 23 is separated from the slot when the cover 20 is in the staggered position, and the hook 23 is inserted into the slot when the cover 20 is in the tight position. Correspondingly, the number of the clamping hooks 23 is the same as that of the clamping grooves, the positions of the clamping hooks correspond to those of the clamping grooves, and the structure of the clamping hooks is matched with that of the clamping grooves.

The cover closing process of the printer comprises the following steps:

as shown in fig. 1, the inner wall of the cover 20 is first moved toward the seat 10 until the cover 20 is placed on the side of the seat 10 and at a position offset from the side, at which time the height of the cover 20 is higher than the height of the seat 10, and the state of the driving portion 21 and the abutting portion is as shown in fig. 6.

Then, the cover body 20 is pushed backward, at this time, the guiding inclined surface of the driving portion 21 presses against the end of the abutting portion to drive the actuating member 35 to rotate counterclockwise in fig. 3 until the right side of the abutting portion abuts against the inclined groove wall on the right side of the insertion groove 19, the bottom end of the driving portion 21 abuts against the bottom end of the insertion groove 19, the clamping surface of the driving portion 21 abuts against the left side of the abutting portion, meanwhile, the nine hooks 23 are just in insertion fit with the nine slots (17, 18), and the cover body 20 reaches the covering position, as shown in fig. 1.

Directional positioning that is not clear in this embodiment can be positioned with reference to the directions in fig. 2.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. A compact intelligent printer comprises a base, a cover body and a printing assembly, wherein the cover body is detachably fixed on the base to be capable of being switched between an uncovering state and a covering state, and the printing assembly is connected to the base; characterized in that the printing assembly has:

a thermal head;

a platen roller configured to be rotatable about a first axis;

a support member for supporting and positioning the thermal head, the support member being provided to be rotatable about a second axis; and

an actuating member for driving the support member in rotation, the actuating member being arranged to be rotatable about a third axis;

the first axis and the second axis are arranged in parallel, and the second axis and the third axis are arranged in parallel or overlapped;

the cover body is provided with a driving part which is set to drive the actuating member to rotate in the cover closing process so that the thermosensitive head positioned on the supporting member approaches the paper pressing roller to clamp the recording paper.

2. The compact intelligent printer of claim 1, wherein: a return spring is arranged between the support member and the base body, and the return spring is arranged to apply force to the support member in a direction in which the thermal head leaves the platen roller.

3. The compact intelligent printer of claim 2, wherein: the support member has a first end portion at which the thermal head is positioned, and a second end portion at which one urging leg of the return spring abuts, and the other urging leg thereof abuts on the seat body.

4. The compact intelligent printer of claim 2 or 3, wherein: the base body is provided with a pivot shaft, and the supporting component and the actuating component are pivoted on the pivot shaft.

5. The compact intelligent printer of claim 4, wherein: an actuating spring is provided between the actuating member and the support member, and the actuating spring is arranged so as to urge the actuating member in a direction in which the thermal head approaches the platen roller.

6. The compact intelligent printer of claim 5, wherein: the actuating spring is a torsion spring, the main body of the actuating spring is pivoted on the pivoting shaft, one force applying supporting leg of the actuating spring is abutted on the actuating member, and one force applying supporting leg of the actuating spring is abutted on the supporting member.

7. The compact intelligent printer of claim 5 or 6, characterized in that: the actuation spring is positioned in a clamping manner between the actuation member and the support member.

8. The compact intelligent printer of claim 5 or 6, characterized in that: the actuating spring is arranged so that, after being pressed by the actuating member, the urging force thereof exerted on the support member can drive the support member to rotate in a direction such that the thermal head approaches the platen roller against the reaction force exerted on the support member by the return spring.

9. The compact intelligent printer of claim 5 or 6, characterized in that: the actuating spring is arranged such that, after being released by the actuating member, a reaction force applied to the supporting member by the return spring can drive the supporting member to rotate in a direction to separate the thermal head from the platen roller against a force applied to the supporting member by the actuating spring.

10. The compact intelligent printer of claim 1, wherein: the actuating component is provided with an abutting part which is pressed by the driving part to drive the actuating component to rotate, and the abutting part is arranged to swing around a third axis in a set angle range;

preferably, the printing component is positioned in the seat body, and an upper opening for exposing the abutting part is formed at the top of the seat body;

preferably, the seat body comprises a bottom shell and a cover shell, a mounting cavity is formed between the bottom shell and the cover shell, a mounting rack detachably fixedly connected with the bottom shell is arranged in the mounting cavity, and the platen roller, the actuating member and the supporting member are rotatably engaged on the mounting rack;

preferably, the printing assembly further comprises a driving unit for driving the platen roller to rotate, wherein the driving unit comprises a motor and a gear transmission mechanism, the motor is arranged on one side of the mounting frame, and the gear transmission mechanism is arranged on the other side of the mounting frame opposite to the motor;

preferably, a battery unit which is arranged separately from the mounting frame and is detachably jointed on the bottom shell is arranged in the mounting cavity;

preferably, the upper surface of the cover shell is recessed downwards to form a paper containing cavity;

preferably, a control board for controlling the operation of the printing assembly is further arranged in the mounting cavity, is jointed on the bottom shell and extends from the lower part of the battery unit to the lower part of the paper accommodating cavity;

preferably, the cover body is detachably fixed on the base body by the buckle assembly;

preferably, the base comprises a bottom shell and a cover shell, the bottom of the cover shell is provided with an opening facing the bottom shell, the bottom shell is fixedly connected to the bottom of the cover shell and closes the opening, the upper surface of the cover shell is recessed downwards to form a paper containing cavity, and the cover body is detachably fixed to the top of the cover shell;

preferably, the fastening assembly includes a plurality of fastening units, and the cover is configured to push the cover to be fastened or separated between the base bodies when a force is applied to the cover in a direction perpendicular to the first axis;

preferably, the cover body is provided with a thin structure, and the driving part and the buckle are integrally formed on the cover body;

preferably, the cover body is provided with a limiting component for limiting the play of the recording paper roll, and the limiting component is jointed on the cover body in an ultrasonic welding mode or a clamping mode.