A portable printer with an open cover structure

Abstract

The application provides a portable printer with an open cover structure and relates to the technical field of printing devices, which comprises a core body and an upper cover; the core body is provided with a lock catch and an open cover support; the lock catch is arranged on the core body and can be automatically reset to a locked state, and the lock catch is controlled by external force to switch its state; the open cover support is hingedly arranged on the core body, and is rotated along the hinged direction by the user pressing to trigger the lock catch to be in an open cover state; the upper cover is correspondingly provided with a first trigger part for triggering the lock catch to be in the open cover state, the first trigger part is used to switch the lock catch to the open cover state, and after the upper cover is closed to the core body, the lock catch is reset to the locked state and the relative catch fixes the first trigger part to limit the upper cover on the core body. The application adopts multiple optional closing modes, which is beneficial to daily operation and use, and improves the printing work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing devices, in particular to a portable printer with an opening cover structure. BACKGROUND

[0002] Traditional printers generally use press switches or side sliding switches. The existing press switch structure is complex, the cost is high, the cover opening process cannot be comfortably controlled, and when the cover is closed, the assembly is prone to problems such as not smooth buckling. Among them, the side opening switch needs to hold the printer by hand when opening the cover, and the force does not conform to human mechanics, and the method is awkward, and the opening cover structure has high requirements for the space of the upper shell: too small space cannot be installed, and too large space increases the volume of the printer.

[0003] At present, when replacing consumables (label paper, etc.) of a portable thermal printer or thermal transfer printer, the cover needs to be opened to expose the inside of the printer, so that the consumables can be loaded and the cover can be closed for printing work. In daily use, the opening and closing action of the cover is repeated frequently, so the convenience and stability of locking the cover are very important. Usually, the printer releases the locking mechanism by pressing the opening cover button, so as to quickly open the cover, and the locking mechanism is used to limit and lock the upper cover when the cover is closed. The general opening cover method is to press the opening cover button, but the existing press unlocking method of the cover is relatively cumbersome and is not conducive to frequent use and efficient printing. SUMMARY

[0004] The present application discloses a portable printer with an opening cover structure, which is simple in structure and convenient to operate, and aims to improve the problems of the existing printer press opening cover method being relatively cumbersome and not conducive to printing work.

[0005] The present application adopts the following scheme:

[0006] The present application provides a portable printer with an opening cover structure, which comprises: a core body and a reversible opening and closing upper cover arranged on the core body; a lock piece is arranged on the core body to lock and fix the upper cover, and an opening cover bracket is arranged to drive the lock piece to switch between the locked state and the opening cover state; the lock piece is arranged on the core body and can automatically reset to the locked state, and is controlled by external force to switch to the opening cover state; the upper cover is correspondingly provided with a first trigger part, which is pressed to trigger the lock piece to switch state when the cover is closed, and after the upper cover is closed to the core body, the lock piece limits the upper cover on the core body; the opening cover bracket rotates under the action of external force to trigger the lock piece to be in the opening cover state, so that the lock piece moves in the positive direction to drive the first trigger part on the lock piece to lift, and after the external force is removed, the lock piece automatically resets to move in the reverse direction, which corresponds to driving the first trigger part to move in the opening cover direction.

[0007] As a further improvement, the first trigger part comprises a printing rubber roller arranged on the upper cover, the printing rubber roller is arranged opposite to the printing head in the core body; the upper cover is pressed by external force, the printing rubber roller is abutted to the lock part to drive the lock part to switch to the cover opening state, and after the upper cover is closed to the core body, the lock part is reset to the locking state and the relative catch fixes the printing rubber roller to limit the upper cover on the core body.

[0008] As a further improvement, the lock part has a catch with a groove for accommodating the printing rubber roller, the catch is provided with a first guide part with an inclination angle above the groove, the printing rubber roller is pressed to abut the first guide part by external force to enter the groove, and when the printing rubber roller is separated from the first guide part, the lock part is returned to the locking state to limit the printing rubber roller in the groove.

[0009] As a further improvement, the catch is provided with a second guide part on the other side of the groove opposite to the first guide part, the first guide part and the second guide part are opposite to each other and form a V-shaped opening.

[0010] As a further improvement, the base of the core body is provided with a clamping groove, the lock part is arranged in close contact with the base, so that the groove and the clamping groove are substantially coincident to accommodate the printing rubber roller; and the end of the printing rubber roller after closing is accommodated in the clamping groove, at this time the catch at least partially laterally closes the clamping groove to accommodate the printing rubber roller in the clamping groove.

[0011] As a further improvement, the printing rubber roller accommodated in the groove is lifted up by the second guide part to lift the printing rubber roller up to separate from the groove when the opening support triggers the lock part to move forward in the cover opening state, and when the lock part is automatically reset to the locking state, the printing rubber roller lifted to a preset height continues to be lifted up by the first guide part in the reverse direction to take the printing rubber roller out of the clamping groove.

[0012] As a further improvement, two lock parts are included, and the two lock parts are arranged on both sides of the core body respectively to correspond to accommodate and clamp the two ends of the printing rubber roller.

[0013] As a further improvement, the opening support is hingedly arranged on the core body; the opening support comprises a rod body and a driving part and a second trigger part arranged on the rod body; the rod body is arranged substantially perpendicular to the lock part, and the second trigger part is abutted to the lock part, the rod body drives the second trigger part to rotate in the direction towards the lock part by pressing the driving part by the user.

[0014] As a further improvement, the driving part is arranged at one end of the rod body, and the movement core body is provided with a key hole, and an automatic reset key is arranged in the key hole.

[0015] As a further improvement, the driving part is in the shape of a crescent, the arc surface thereof faces upward and is in contact with the key, the parallel surface thereof is in contact with the arc convex provided in the key hole, and the arc surface on the top is pressed to drive the driving part to rotate around the rod body and move along the outer contour of the convex.

[0016] As a further improvement, when the lock part is reset to the locked state, the cover support is reset to the initial position through the second trigger part of the cover support.

[0017] As a further improvement, the second trigger part is in the shape of a lever and is arranged vertically on the rod body, the lock part is provided with a bending plate extending towards the rotating end surface of the second trigger part, and the bending plate is always in contact with the second trigger part.

[0018] As a further improvement, the lock part is arranged to slide in the first direction on the movement core body to switch the state thereof, the rod body is arranged in the second direction, the lock part is provided with a reset spring arranged in the first direction and always in the stretched state to drive the lock part to be in contact with the rod body.

[0019] As a further improvement, the upper cover is hingedly arranged on the movement core body, and a spring is arranged near the hinge to provide the spring force for the rotation of the upper cover in the opening direction when the upper cover is opened, so that the upper cover can drive the printing roller to be lifted to the preset height.

[0020] By adopting the above technical scheme, the following technical effects can be achieved:

[0021] The portable printer of the present application is capable of facilitating the stable arrangement of the upper cover on the machine core body by the user pressing the opening cover support to rotate it in the hinged direction to correspond to the trigger of the lock catch in the opening cover state, and the lock catch can automatically reset to the locked state when not subjected to external force, so that the upper cover can be simply and conveniently buckled with the machine core body. Moreover, the opening cover support can also be rotated in the hinged direction by the user pressing it to trigger the lock catch in the opening cover state, at which time the upper cover is buckled on the machine core body, and then the pressing on the opening cover support is released to correspond to the automatic resetting of the lock catch to the locked state, so that the upper cover is limited on the machine core body. The present application adopts various optional buckling modes, which is beneficial to daily operation and use, and improves the printing work efficiency.

[0022] Further, when the upper cover is opened, the opening cover support triggers the lock catch in the opening cover state, so that the lock catch moves in the forward direction to drive the first trigger part placed on the lock catch to lift, and after the external force is removed, the lock catch automatically resets to move in the reverse direction, corresponding to driving the first trigger part to move in the opening cover direction. When the lock catch moves in the forward direction to switch from the locked state to the opening cover state, the first trigger part is lifted to a preset height by the lock catch, at which time the external force pressing the opening cover support is removed, so that the lock catch automatically resets to move in the reverse direction from the opening cover state to the locked state, corresponding to switching its own state, and at the same time, the lock catch moving in the reverse direction drives the first trigger part lifted to the preset height to continue lifting and moving in the opening cover direction, corresponding to driving the upper cover to open. During the pressing of the opening cover, the lock catch is unlocked at the same time and provides a lifting force upward to the upper cover, which is beneficial to the opening operation of the user, and the lifting action is convenient for reminding the user that the opening has been completed. Moreover, after the user removes the pressing force, the automatically reset lock catch continues to drive the first trigger part to move in the opening cover direction, so that the upper cover is lifted to automatically open under the driving of the lock catch. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0024] Figure 1 is a structural schematic diagram of the printer of the embodiment of the present application, in which the upper cover is in the buckled state;

[0025] Figure 2 is Figure 1 is a structural schematic diagram of the upper cover in an open state;

[0026] Figure 3 is Figure 2 is a structural schematic diagram from another perspective, in which the key is detached from the key hole for better illustration;

[0027] Figure 4 is Figure 1 is a sectional view from one perspective;

[0028] Figure 5 is a structural schematic diagram of the locking member and the cover opening support of the printer of the embodiment of the present application, in which the locking member is in a locked state;

[0029] Figure 6 is Figure 5 is a structural schematic diagram of the locking member in a cover opening state;

[0030] Figure 7 is a structural schematic diagram from another perspective;

[0031] Figure 8 is a structural schematic diagram of the locking member and the cover opening support of the printer of the embodiment of the present application, in which the locking member is in a locked state in the left side view and in a cover opening state in the right side view.

[0032] Legend: 1 - machine core body; 11 - clamping groove; 2 - upper cover; 21 - first trigger part; 211 - printing rubber roller; 3 - locking member; 31 - groove; 32 - first guide part; 33 - second guide part; 34 - bent plate; 4 - cover opening support; 41 - rod body; 42 - driving part; 43 - second trigger part; 5 - key; 6 - circular-arc-shaped protrusion; 7 - return spring; 8 - elastic member; X - first direction; Y - second direction. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0035] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0036] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, the first feature "above" or "below" the second feature can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] Embodiment

[0039] In combination Figures 1 to 8 The present embodiment provides a portable printer with an open cover structure, comprising: a core body 1 and a reversible open and close configuration on the upper cover 2 of the core body 1.

[0040] In the embodiment, the core body 1 is provided with a locking piece 3 for locking and fixing the upper cover 2, and an opening cover support 4 for driving the locking piece 3 to switch between the locking state and the opening cover state. The locking piece 3 is arranged on the core body 1 and can be automatically reset to the locking state, and is controlled by external force to switch to the opening cover state. The opening cover support 4 is hingedly arranged on the core body 1, and is rotated along the hinged direction by the user pressing to trigger the locking piece 3 to be in the opening cover state. The upper cover 2 is correspondingly provided with a first trigger part 21 for triggering the locking piece 3 to be in the opening cover state, and the first trigger part 21 is pressed to the locking piece 3 to make the locking piece 3 switch to the opening cover state, and after the upper cover 2 is closed to the core body 1, the locking piece 3 is reset to the locking state and relatively clamps the first trigger part 21 to limit the upper cover 2 on the core body 1. The opening cover support 4 is rotated under the action of external force to trigger the locking piece 3 to be in the opening cover state, so that the locking piece 3 moves in the positive direction to drive the first trigger part 21 on the locking piece to be lifted, and after the external force is removed, the locking piece 3 is automatically reset to move in the reverse direction, which correspondingly drives the first trigger part 21 to move in the opening cover direction.

[0041] In the embodiment, the user presses the opening cover support 4 to rotate it along the hinged direction to trigger the locking piece 3 to be in the opening cover state, and the locking piece 3 can be automatically reset to the locking state without external force, so as to facilitate the stable arrangement of the upper cover 2 on the core body 1. In the closing process, the first trigger part 21 of the upper cover 2 makes the locking piece 3 switch to the opening cover state, and after the upper cover 2 is closed to the core body 1, the locking piece 3 is reset to the locking state and relatively clamps the first trigger part 21 to limit the upper cover 2 on the core body 1, so as to realize the locking of the upper cover 2 on the core body 1 by directly pressing the upper cover 2, and the upper cover 2 can be simply and conveniently buckled with the core body 1. Also, the user can press the opening cover support 4 to rotate it along the hinged direction to trigger the locking piece 3 to be in the opening cover state, and then the upper cover 2 is closed to the core body 1, and the pressing of the opening cover support 4 is correspondingly released, so that the locking piece 3 is automatically reset to the locking state, thereby limiting the upper cover 2 on the core body 1. The application adopts various optional closing modes, which is beneficial to daily operation and use, and improves the printing efficiency.

[0042] When the cover is opened, the cover opening support 4 triggers the lock catch 3 to be in the cover opening state, and the lock catch 3 is moved in the forward direction to drive the first trigger part 21 placed on the lock catch 3 to be lifted, and after the external force is removed, the lock catch 3 is automatically reset to move in the reverse direction to correspondingly drive the first trigger part 21 to move in the cover opening direction. Specifically, when the lock catch 3 is switched from the locking state to the cover opening state and is moved in the forward direction, the first trigger part 21 is lifted to a preset height by the lock catch 3, and at this time, the external force pressing the cover opening support 4 is removed, so that the lock catch 3 is automatically reset to move in the reverse direction from the cover opening state to the locking state, and correspondingly switches its own state. At the same time, the lock catch 3 moving in the reverse direction drives the first trigger part 21 lifted to the preset height to continue lifting and moving, so that the first trigger part 21 moves in the cover opening direction, and correspondingly drives the upper cover 2 to be opened. During the pressing of the cover opening process, the lock catch 3 is unlocked at the same time, and provides a lifting force upward for the upper cover 2, which is beneficial to the cover opening operation of the user, and the lifting action is convenient for reminding the user that the cover opening has been completed. And after the user cancels the pressing force, the automatically reset lock catch 3 continues to drive the first trigger part 21 to move in the cover opening direction, so that the upper cover 2 is lifted to be automatically opened under the driving of the lock catch 3.

[0043] In one of the embodiments of the present application, the first trigger 21 comprises a printing rubber roller 211 arranged on the upper cover 2, which is arranged opposite to a printing head (not shown) in the core body 1. When the upper cover 2 is fixed to the core body 1, the printing rubber roller 211 is arranged opposite to the printing head to form a paper feeding channel, thereby allowing the label paper to enter to reproduce the printing content on the label paper. The locking member 3 has a catch (not shown) of a recess 31 accommodating the printing rubber roller 211, and the catch is provided with a first guide portion 32 having an inclination above the recess 31. The printing rubber roller 211 enters the recess 31 by pressing against the first guide portion 32, and when the printing rubber roller 211 is separated from the first guide portion 32, the locking member 3 returns to the locked state to restrict the printing rubber roller 211 in the recess 31. Correspondingly, the catch is provided with a second guide portion 33 on the other side of the recess 31 opposite to the first guide portion 32, and the first guide portion 32 and the second guide portion 33 are opposite to each other and substantially form a V-shaped opening. The second guide portion 33 having an inclination is arranged on the side of the recess 31 away from the printing rubber roller 211, and the first guide portion 32 and the second guide portion 33 are arranged on the left and right sides of the recess 31, respectively, and communicate the recess 31 with the external space. The printing rubber roller 211 presses the first guide portion 32 to trigger the locking member 3 to move in the opening state, and the printing rubber roller 211 accommodated in the recess 31 is lifted up by the second guide portion 33 to separate from the recess 31 when the opening bracket 4 triggers the locking member 3 to move in the opening state. It should be noted that the first guide portion 32 and the second guide portion 33 substantially constitute a V-shaped entrance, so that the printing rubber roller 211 can enter the recess 31 through the entrance, and when the locking member 3 is in the locked state, pressing the upper cover 2 makes the printing rubber roller 211 abut at least part of the first guide portion 32, thereby guiding the relative movement of the locking member 3 to the opening state, to ensure that the printing rubber roller 211 enters the recess 31 through the entrance, and when the locking member 3 is reset to the locked state, the side of the recess 31 and the first guide portion 32 above restrict the printing rubber roller 211 therein.

[0044] In particular, the base (not shown) of the core body 1 is provided with a clamping groove 11 corresponding to the end of the printing rubber roller 211, and the locking member 3 is arranged in close contact with the base, and the end of the printing rubber roller 211 is accommodated in the clamping groove 11 after being closed, and at this time, the catch at least partially laterally closes the clamping groove 11, so that the printing rubber roller 211 is accommodated in the clamping groove 11. The locking member 3 is arranged in lateral contact with the clamping groove 11, and when the locking member 3 moves in the switching state, it corresponds to the clamping space formed by cooperating with the clamping groove 11 to restrict the printing rubber roller 211, or mutually avoids to expose the opening of the clamping groove 11, and allows the second guide portion 33 to support the printing rubber roller 211 to lift up in the opening direction through the opening.

[0045] In particular, please refer to Figure 4 and Figure 5 When the locking member 3 is in the locking state, the first guide portion 32 of the locking member is at least partially transversely arranged at the opening position of the clamping groove 11, so as to cooperate with the clamping groove 11 to limit the end portion of the printing rubber roller 211 in the clamping space formed by the two, facilitate the relative clamping fixation of the end portion of the printing rubber roller 211, and allow the body of the rubber roller to rotate in the printing process to cooperate with the working of the printing head. When the cover needs to be unlocked, the cover support 4 is pressed externally to trigger the locking member 3 to move along the cover opening state, at this time the first guide portion 32 of the locking member 3 is away from the clamping groove 11 to avoid each other, and the second guide portion 33 moves towards the clamping groove 11. When the locking member 3 is in the cover opening state, the second guide portion 33 overlaps with the groove wall of one of the clamping grooves 11 and continues to move forward at least along the switching direction, so that the locking member 3 is abutted by the inclination direction of the second guide portion 33 to drive the printing rubber roller 211 to move upward, thereby ensuring that the printing rubber roller 211 accommodated in the groove 31 is lifted upward by the second guide portion 33 to disengage from the groove 31 when the cover support 4 triggers the locking member 3 to move forward along the cover opening state. In particular, the inclination of the second guide portion 33 is smaller than the inclination of the groove wall of the clamping groove 11, and the second guide portion 33 corresponds to abut and support the printing rubber roller 211 to lift it to a preset height when the locking member 3 is in the cover opening state, wherein the preset height is at least higher than the lowest point height of the inclination angle of the first guide portion 32. Moreover, when the locking member 3 is automatically reset to the locking state, the printing rubber roller 211 lifted to the preset height is brought out of the clamping groove 11 along the reverse direction by the first guide portion 32. So that when the user cancels the pressing of the cover support 4, the printing rubber roller 211 at the preset height is lifted continuously by the automatic reset of the locking member 3 along the reverse direction by the first guide portion 32 to drive the printing rubber roller 211 at the preset height to continue to lift along the inclination angle, realizing the automatic opening of the cover 2.

[0046] Preferably, two locking members 3 are included in the embodiment, and the two locking members 3 are respectively arranged on the two sides of the core body 1, corresponding to accommodate the two end portions of the clamping printing rubber roller 211. The locking member 3 is arranged on the two sides of the core body 1, and the cover 2 is fixedly connected with the two locking members 3 through the two end portions of the printing rubber roller 211, so that the two sides are balanced, having the characteristics of stability and balance.

[0047] Please refer to Figures 4 to 8 The cover support 4 includes a rod body 41 and a driving portion 42 and a second trigger portion 43 arranged on the rod body 41. The rod body 41 is arranged substantially perpendicular to the locking member 3, and is abutted with the locking member 3 through the second trigger portion 43, so as to rotate the rod body 41 along the direction towards the locking member 3 by pressing the driving portion 42 by the user, thereby triggering the locking member 3 to be in the cover opening state.

[0048] Further, the driving part 42 is arranged at one end of the rod body 41, and the core body 1 is correspondingly provided with a key hole (not shown), and a key 5 capable of automatic reset is arranged in the key hole, and the key 5 is in contact with the driving part 42. By pressing the key 5, the key 5 is in contact with the driving part 42, thereby driving the driving part 42 to rotate along the hinge direction of the rod body 41, so that the second trigger part 43 arranged on the rod body 41 rotates to trigger the lock part 3 to be in the open cover state. When the user releases the pressing of the key 5, the lock part 3 is automatically reset to the locked state when it is not subjected to external force, and at this time, the lock part 3 reversely drives the second trigger part 43 to rotate back to the initial position.

[0049] The driving part 42 is in the shape of a crescent, the arc surface thereof faces upward and is in contact with the key 5, the parallel surface thereof is in contact with a circular arc protrusion 6 arranged in the key hole, and the arc surface at the upper side is subjected to the pressing force to drive the driving part 42 to rotate around the rod body 41 and move along the outer contour of the protrusion. By limiting the driving part 42 between the key 5 and the circular arc protrusion 6, the rotatable threshold when the key 5 is pressed to drive the driving part 42 to rotate is constant, thereby avoiding the situation that the key 5 is pressed too deeply or is difficult to press.

[0050] Preferably, the second trigger part 43 is in the shape of a lever and is arranged vertically on the rod body 41. The lock part 3 is provided with a bent plate 34 extending toward the rotating end surface of the second trigger part 43, and the bent plate 34 is always in contact with the second trigger part 43. The second trigger part 43 is always in contact with the bent plate 34, and when the open cover support 4 is not subjected to the pressing force of the user, the lock part 3 is reset to the locked state to provide the elastic force in contact with the open cover support 4. When the open cover support 4 is subjected to the pressing of the user, the lock part 3 always has the tendency to return to the locked state, thereby ensuring that the second trigger part 43 of the open cover support 4 is always in contact with the bent plate 34 of the lock part 3.

[0051] Please refer to Figures 5 to 7 When the lock part 3 is reset to the locked state, the open cover support 4 returns to the initial position through the second trigger part 43 under the contact of the lock part 3. The lock part 3 is arranged on the core body 1 to slide along the first direction X to switch the state thereof. The rod body 41 is arranged along the second direction Y, and the lock part 3 is provided with a reset spring 7 arranged along the first direction X and always in the stretched state to drive the lock part 3 to contact the rod body 41. It should be noted that the sliding cooperation between the lock part 3 and the core body 1 can be achieved by arranging the sliding block in the sliding groove between the base of the lock part 3 and the core body 1, thereby ensuring the switching of the lock part 3 between the two states. Moreover, the reset spring 7 is always in the stretched state to drive the lock part 3 to move along the first direction and close to the open cover support 4.

[0052] In the embodiment, the upper cover 2 is hingedly arranged on the core body 1, and a resilient member 8 is arranged corresponding to the hinge position. The resilient member 8 provides a resilient force for the rotation of the upper cover 2 in the opening direction when the upper cover 2 is opened, so that the upper cover 2 can drive the printing rubber roller 211 to lift to a preset height. The resilient member 8 provides a resilient force for the rotation of the upper cover 2 in the opening direction when the upper cover 2 is opened, so that when the opening support 4 is pressed, the resilient force is increased to directly lift the printing rubber roller 211 to the preset height position, thereby avoiding the problem of large manufacturing precision required due to the printing rubber roller 211 being lifted to the preset height position only by the abutting of the second guide portion 33. Specifically, the resilient member 8 is a resilient piece arranged on any one of the inner end surfaces of the upper cover 2 or the core body 1 in a convex shape. When the two inner end surfaces are closed, the resilient piece is correspondingly energized, so that when the locking member 3 is in the opening state, the resilient piece in the energized state releases the ability to return to the initial state, and at the same time provides a resilient force in the opening direction for the opening of the upper cover 2.

[0053] The above is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application.

Claims

1. A portable printer with an open cover configuration, comprising: The core body (1) and the reversible open and close configuration on the upper cover (2) of the core body (1); The core body (1) is provided with a lock part (3) for locking and fixing the upper cover (2) and a cover opening support (4) for driving the lock part (3) to switch between the locking state and the cover opening state; characterized in that, The lock part (3) is arranged on the core body (1) and can be automatically reset to the locking state, and the lock part (3) is controlled by external force to switch to the cover opening state; The upper cover (2) is provided with a first trigger part (21), which is pressed to trigger the lock part (3) to switch state when the cover is closed, and after the upper cover (2) is closed to the core body (1), it is limited on the core body (1) through the lock part (3); The cover opening support (4) rotates under the action of external force to trigger the lock part (3) to be in the cover opening state, so that the lock part (3) moves in the positive direction to drive the first trigger part (21) placed on the lock part (3) to lift, and after the external force is removed, the lock part (3) is automatically reset to move in the opposite direction, corresponding to drive the first trigger part (21) to move in the cover opening direction; The first trigger part (21) includes a printing rubber roller (211) arranged on the upper cover (2), which can be arranged opposite to the printing head in the core body (1); The lock part (3) is a hook with a groove (31) for accommodating the printing rubber roller (211), and a first guide part (32) with an inclination is arranged above the groove (31) on the hook, and the printing rubber roller (211) is pressed against the first guide part (32) by external force to enter the groove (31), and when the printing rubber roller (211) is separated from the first guide part (32), the lock part (3) returns to the locking state to limit the printing rubber roller (211) in the groove (31) of the hook; The other side of the groove (31) relative to the first guide part (32) of the hook is provided with a second guide part (33), and the first guide part (32) and the second guide part (33) are opposite to each other and form a V-shaped opening; The lock part is provided with two, and two lock parts are arranged on both sides of the core body.

2. The printer of claim 1, wherein, The upper cover (2) is pressed by external force, so that the printing rubber roller (211) abuts to the lock part (3), so as to drive the lock part (3) to switch to the cover opening state, and after the upper cover (2) is closed to the core body (1), the lock part (3) is reset to the locking state and the printing rubber roller (211) is fixed relative to the hook, so as to limit the upper cover (2) on the core body (1).

3. The printer of claim 1, wherein, The base of the core body (1) is provided with a clamping groove (11), the locking piece (3) is arranged in close contact with the base, so that the recess (31) is approximately coincident with the clamping groove (11) to accommodate the printing rubber roller (211); and the end of the printing rubber roller (211) is accommodated in the clamping groove (11) after being closed, at which time the clamping hook at least partially laterally closes the clamping groove (11) to accommodate the printing rubber roller (211) in the clamping groove (11).

4. The printer of claim 3, wherein, The printing rubber roller (211) accommodated in the recess (31) is lifted up to be separated from the recess (31) via the second guide part (33) to support the printing rubber roller (211) when the opening bracket (4) triggers the locking piece (3) to move forward in the opening state, and the printing rubber roller (211) lifted to a preset height continues to be lifted upward in the reverse direction via the first guide part (32) to take the printing rubber roller (211) out of the clamping groove (11) when the locking piece (3) is automatically reset to the locking state.

5. The printer of claim 1, wherein, The opening bracket (4) is hingedly arranged on the core body (1); the opening bracket (4) comprises a rod body (41) and a driving part (42) and a second trigger part (43) arranged on the rod body (41); the rod body (41) is approximately perpendicular to the locking piece (3) and abuts against the locking piece (3) via the second trigger part (43), and the rod body (41) drives the second trigger part (43) to rotate in the direction towards the locking piece (3) via the user pressing the driving part (42).

6. The printer of claim 5, wherein, The driving part (42) is arranged at one end of the rod body (41), and the core body (1) is correspondingly provided with a key hole, and an automatically reset key (5) is installed in the key hole, and the key (5) abuts against the driving part (42).

7. The printer of claim 5, wherein, The locking piece (3) is slidably arranged on the core body (1) in the first direction (X) to correspondingly switch the state thereof; the rod body (41) is arranged in the second direction (Y), the locking piece (3) is provided with a reset spring (7), the reset spring (7) is arranged in the first direction (X) and is always in the stretched state to drive the locking piece (3) to abut against the rod body (41).

8. The printer of claim 1, wherein, The upper cover (2) is hingedly arranged on the core body (1), and a resilient member (8) is correspondingly arranged close to the hinge, the resilient member (8) provides the resilient force for the upper cover (2) to rotate in the opening direction when the upper cover (2) is opened, so that the upper cover (2) can lift the printing rubber roller (211) to a preset height.

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