CN220576885U - Printer with a printing mechanism - Google Patents

Abstract

The utility model discloses a printer, which comprises a machine base and a machine cover, wherein the machine base comprises a base body and a clamping piece, the clamping piece is rotatably arranged on the base body, the clamping piece is provided with a bayonet, the machine cover can be connected to the base body in a turnover way, the machine cover is provided with a first elastic piece and a printing component, the end part of the printing component is provided with a clamping shaft, the clamping shaft can be clamped into the bayonet to cover the machine cover on the base body, the machine base also comprises a pressing piece, a second elastic piece and a flip cover transmission mechanism, the base body is provided with a sliding groove, the second elastic piece is positioned in the sliding groove and is abutted against the pressing piece, the pressing piece can overcome the elasticity of the second elastic piece to move along the sliding groove so as to push the flip cover transmission mechanism, so that the flip cover transmission mechanism drives the clamping piece to rotate, and the limit of the bayonet to the clamping shaft is relieved.

Description

Printer with a printing mechanism

Technical Field

The utility model relates to the technical field of printing equipment, in particular to a printer.

Background

In the related art, a thermal printer is generally applied to various self-service terminals such as a self-service cabinet terminal, an information inquiry terminal, a detection instrument terminal and the like, and printing of media including inspection reports, various labels and the like is realized. Thermal printers are typically provided with a housing and a cover that is flip-coupled to the housing, and currently typically have an associated pressing assembly that is depressed downwardly to effect flip-over of the cover, thereby opening the cover for loading a paper roll or other operation. However, since the printing assembly is also mounted on the cover, when the pressing assembly is pressed, the pressing force is transmitted to the printing assembly, which easily causes loosening of internal components of the printing assembly to affect the printing quality.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the printer which can reduce the influence of the pressing force on the printing assembly when the cover is opened and improve the printing quality.

According to an embodiment of the present utility model, a printer includes:

the machine seat comprises a seat body and a clamping piece, wherein the clamping piece is rotatably arranged on the seat body and is provided with a bayonet;

the machine cover can be connected to the base body in a turnover mode, the machine cover is provided with a first elastic piece and a printing assembly, the end portion of the printing assembly is provided with a clamping shaft, the clamping shaft can be clamped into the bayonet to cover the machine cover on the base body, and the first elastic piece can drive the machine cover to turn over relative to the base body to achieve uncovering;

the base further comprises a pressing piece, a second elastic piece and a flip transmission mechanism, the base body is provided with a sliding groove, the second elastic piece is located in the sliding groove and is abutted to the pressing piece, the pressing piece can overcome the elastic force of the second elastic piece to move along the sliding groove to push the flip transmission mechanism, so that the flip transmission mechanism drives the clamping piece to rotate, and the limit of the bayonet to the clamping shaft is relieved.

The printer provided by the embodiment of the utility model has at least the following beneficial effects:

when the machine cover is required to be opened, the pressing piece positioned on the base body is pressed, the pressing piece drives the clamping piece to rotate through the flip transmission mechanism, the bayonet of the clamping piece is used for releasing the limit of the clamping shaft, so that the machine cover can be turned over relative to the base body under the action of the first elastic piece to realize the cover opening, and the pressing piece is arranged on the base body of the machine base, so that the pressing force is not transmitted to the printing component positioned on the machine cover when the pressing piece is pressed, the influence on the printing component can be reduced, the printing quality is improved, the automatic reset of the pressing piece can be realized through the arrangement of the second elastic piece, and the second elastic piece with different elastic forces can be arranged, so that the hand feeling of the pressing piece is pressed when the cover opening can be adjusted according to requirements, and the using comfort is improved.

According to some embodiments of the utility model, the flip transmission mechanism comprises a first transmission member and a second transmission member rotatably mounted on the base, the first transmission member is provided with a receiving portion and a first tooth portion, the second transmission member is provided with a pushing portion and a second tooth portion, the first transmission member and the second transmission member are in meshed connection with each other through the first tooth portion and the second tooth portion, and the pressing member can be abutted against the receiving portion to push the first transmission member to rotate, and the pushing portion is used for pushing the clamping member to rotate.

According to some embodiments of the utility model, an extension plate is disposed at the bottom of the pressing member, and the extension plate can abut against the receiving portion to push the first transmission member to rotate.

According to some embodiments of the utility model, a limiting column is further arranged at the bottom of the pressing piece, the second elastic piece is a spring, and one end of the spring is sleeved on the outer side of the limiting column.

According to some embodiments of the present utility model, the number of the limiting posts is two, the two limiting posts are distributed on two sides of the extending plate, and the spring is sleeved and mounted on the outer side of each limiting post.

According to some embodiments of the utility model, the pressing piece is further provided with a limiting buckle, and the limiting buckle can be clamped to the seat body so as to prevent the pressing piece from loosening from the sliding groove.

According to some embodiments of the utility model, the clamping piece is provided with a clamping hole, the pushing part is a convex column, and the convex column penetrates through the clamping hole and is connected with the clamping piece.

According to some embodiments of the utility model, the clamping piece comprises two connecting plates and two side plates, wherein the two side plates are respectively connected to two ends of the connecting plates, the bayonet is formed in each side plate, and the clamping hole is formed in one side plate.

According to some embodiments of the utility model, the base is provided with a mounting frame, the side plate is rotatably mounted on the mounting frame, the mounting frame is provided with a strip hole, and the protruding column sequentially penetrates through the strip hole and the clamping hole.

According to some embodiments of the utility model, the second transmission member is provided with a torsion spring, and the torsion spring can drive the second transmission member to rotate so as to drive the clamping member to return to the original position.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of a printer according to some embodiments of the present utility model with a cover opened;

FIG. 2 is a schematic cross-sectional view of a printer cover according to some embodiments of the present utility model;

FIG. 3 is a schematic illustration of the structure (with parts omitted) of the printer base according to some embodiments of the utility model;

FIG. 4 is a partially exploded view of FIG. 3;

FIG. 5 is a schematic view of a pressing member according to some embodiments of the present utility model;

FIG. 6 is a schematic diagram illustrating a first driving member according to some embodiments of the present utility model;

FIG. 7 is a schematic diagram of a second driving member according to some embodiments of the present utility model;

fig. 8 is a schematic structural diagram of a clip according to some embodiments of the present utility model.

The reference numerals are as follows:

a housing 100; a base 110; a chute 111; a clamping member 120; a bayonet 121; a side plate 122; a connection plate 123; a clamping hole 124; a swivel hole 125; a pressing member 130; a protruding plate 131; a limit post 132; a limit buckle 133; a second elastic member 140; a first transmission member 150; a receiving portion 151; a first tooth 152; a second transmission member 160; a pushing part 161; a second tooth portion 162; a mounting bracket 170; an elongated hole 171; a torsion spring 180;

a cover 200; a first elastic member 210; a printing component 220; a clamping shaft 221.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the related art, the working principle of the thermal printer is similar to that of a thermal fax machine, thermal paper is led out from a paper roll and then passes through a printing head and a rubber roller which are tangentially arranged, a protective layer of the thermal paper is contacted with the printing head, raw paper of the thermal paper is contacted with the rubber roller, a driving mechanism of the printer drives the rubber roller to rotate and convey the thermal paper to the downstream, a controller of the printer controls a heating body of the printing head to generate heat, the heat is conducted to a thermal coating through the protective layer of the thermal paper, and leuco dye and a color developing agent in the thermal coating react chemically when meeting heat to change color to form a printed ticket surface containing set characters or images. Thermal printers are generally applied to various self-service terminals such as self-service cabinet terminals, information inquiry terminals, detection instrument terminals and the like, and printing of media including inspection reports, various labels and the like is realized. Thermal printers are typically provided with a housing and a cover that is flip-coupled to the housing, and currently typically have an associated pressing assembly that is depressed downwardly to effect flip-over of the cover, thereby opening the cover for loading a paper roll or other operation. However, since the printing assembly is also mounted on the cover, when the pressing assembly is pressed, the pressing force is transmitted to the printing assembly, which easily causes loosening of internal components of the printing assembly to affect the printing quality.

Therefore, the utility model provides the printer which can reduce the influence of the pressing force on the printing assembly when the cover is opened and improve the printing quality.

The printer provided by the embodiment of the utility model can be a thermal printer, and can be other types of printers. Referring to fig. 1 to 8, in particular, the printer includes a housing 100 and a cover 200, the housing 100 includes a housing 110 and a clamping member 120, the clamping member 120 is rotatably mounted on the housing 110, and the clamping member 120 is provided with a bayonet 121. The cover 200 can be turned over and connected to the base 110, the cover 200 is provided with a first elastic element 210 and a printing component 220, the end part of the printing component 220 is provided with a clamping shaft 221, the clamping shaft 221 can be clamped into the bayonet 121 to cover the cover 200 on the base 110, the first elastic element 210 can drive the cover 200 to turn over relative to the base 110 to cover the cover, the first elastic element 210 can be a spring or an elastic metal sheet or a rubber element, when the cover 200 covers the base 110, the first elastic element 210 deforms to have a restoring force, and when the clamping shaft 221 is released from the bayonet 121, the first elastic element 210 can push the cover 200 to turn over relative to the base 110 through the restoring force, so that the cover 200 can be opened. The base 100 further includes a pressing member 130, a second elastic member 140, and a flip driving mechanism, where the base 110 is provided with a chute 111, the chute 111 is open at an upper end of the base 110, the second elastic member 140 is located in the chute 111 and abuts against the pressing member 130, and the second elastic member 140 may be a spring, an elastic metal sheet, a rubber member, or other elastic members. When the user presses the pressing member 130, the pressing member 130 can overcome the elastic force of the second elastic member 140 to move along the sliding groove 111 to push the flip transmission mechanism, so that the flip transmission mechanism drives the clamping member 120 to rotate, and further the limit of the bayonet 121 on the clamping shaft 221 is released, so that the cover 200 is turned over relative to the base 110 under the action of the first elastic member 210 to realize cover opening.

Referring to fig. 1 and 2, when the cover 200 is required to be opened, by pressing the pressing member 130 located on the base 110, the pressing member 130 drives the clamping member 120 to rotate through the flip transmission mechanism, so that the bayonet 121 of the clamping member 120 releases the limit on the clamping shaft 221, and the cover 200 can be turned over relative to the base 110 under the action of the first elastic member 210 to realize the cover opening, and since the pressing member 130 is disposed on the base 110 of the base 100, the pressing force is not transmitted to the printing assembly 220 located on the cover 200 when the pressing member 130 is pressed, so that the influence on the printing assembly 220 can be reduced, the printing quality is improved, and by providing the second elastic member 140, the automatic reset of the pressing member 130 can be realized. It should be further noted that, in the prior art, since the pressing component and the printing component 220 are both disposed on the cover 200, the pressing component cannot be pressed by a larger pressing force, resulting in poor comfort of use, and the pressing component 130 and the printing component 220 in the embodiment of the application are disposed on the base 110 and the cover 200 respectively, so that the printer in the embodiment of the application can further be provided with the second elastic components 140 with different elastic forces, so that the hand feeling of the pressing component 130 can be pressed when the cover is opened can be adjusted as required, and the comfort of use is improved.

Referring to fig. 3, 6 and 7, it can be appreciated that in some embodiments of the present utility model, the flip cover transmission mechanism includes a first transmission member 150 and a second transmission member 160 rotatably mounted on the base 110, the first transmission member 150 is provided with a receiving portion 151 and a first tooth portion 152, the second transmission member 160 is provided with a pushing portion 161 and a second tooth portion 162, the first transmission member 150 and the second transmission member 160 are engaged and connected through the first tooth portion 152 and the second tooth portion 162, and the pressing member 130 can abut against the receiving portion 151 to push the first transmission member 150 to rotate, and the pushing portion 161 is used for pushing the clamping member 120 to rotate. The first tooth portion 152 and the second tooth portion 162 are provided with a plurality of teeth, and the first transmission member 150 and the second transmission member 160 are in meshed transmission, so that when the pressing member 130 is pressed, the pressing member 130 can drive the clamping member 120 to rotate to a more accurate position through the flip transmission mechanism, and the uncapping reliability is improved.

Referring to fig. 3 and 5, it can be appreciated that, in order to enable the pressing member 130 to better push the first transmission member 150 to rotate when the pressing member 130 is pressed, in some embodiments of the present utility model, an extension plate 131 is disposed at the bottom of the pressing member 130, and the extension plate 131 can abut against the receiving part 151 to push the first transmission member 150 to rotate. Specifically, the receiving portion 151 has a flush sliding section, when the pressing member 130 is pressed, the end portion of the extending plate 131 can abut against the sliding section and move downward along the sliding section to push the first transmission member 150 to rotate, so that the extending plate 131 pushes the first transmission member 150 more smoothly.

Referring to fig. 2 and 5, it can be understood that, in order to prevent the second elastic member 140 from easily shaking, in some embodiments of the present utility model, a limiting post 132 is further disposed at the bottom of the pressing member 130, the second elastic member 140 is a spring, one end of the spring is sleeved on the outer side of the limiting post 132, and the other end of the spring abuts against the bottom wall of the chute 111. When the pressing member 130 is pressed to move the pressing member 130 in the chute 111, the limiting post 132 can limit the spring, so that the spring can be prevented from shaking, and the reliability of the pressing member 130 in use can be improved.

It can be appreciated that in order to improve the pressing feel of the pressing member 130 and improve the stability of the stress of the pressing member 130, in some embodiments of the present utility model, the number of the limiting posts 132 is two, the two limiting posts 132 are distributed on two sides of the extending plate 131, and a spring is sleeved on the outer side of each limiting post 132. Through being provided with two springs and two spacing posts 132, every spring cup joints and installs in corresponding spacing post 132, and spacing post 132 distributes in the both sides that stretch out the board 131 relatively moreover to when making to press the presser 130, can adopt great dynamics, be favorable to improving the feel of pressing, the atress distribution of presser 130 is more even moreover, makes when pressing the presser 130, and the removal of presser 130 is more steady, further improves the travelling comfort of use.

Referring to fig. 2 and 5, it can be appreciated that since the pressing member 130 is slidably mounted in the sliding groove 111, the pressing member 130 is easily released from the sliding groove 111 to the outside when the pressing member 130 moves to the opening of the sliding groove 111, for this reason, in some embodiments of the present utility model, the pressing member 130 is further provided with a limit catch 133, and the limit catch 133 can be engaged with the base 110 to prevent the pressing member 130 from being released from the sliding groove 111. Specifically, the number of the limiting buckles 133 is two, and the two limiting buckles 133 are arranged on the outer side of the pressing piece 130 and are respectively located on two sides of the extending plate 131, when the pressing piece 130 moves to the opening of the sliding groove 111, the limiting buckles 133 are clamped to the base 110, so that the pressing piece 130 can be limited, and the pressing piece 130 is prevented from moving continuously and releasing from the sliding groove 111 to the outside.

Referring to fig. 7 and 8, it can be appreciated that, in order to achieve reliable connection between the second transmission member 160 and the clamping member 120, in some embodiments of the present utility model, the clamping member 120 is provided with a clamping hole 124, and the pushing portion 161 is a protruding column, where the clamping hole 124 matches the shape of the protruding column, and the protruding column is disposed through the clamping hole 124 so as to be connected with the clamping member 120. When the second transmission member 160 rotates, the protruding column can abut against the inner wall of the clamping hole 124, so as to drive the clamping member 120 to rotate.

Referring to fig. 1 and 8, it can be appreciated that in some embodiments of the present utility model, two ends of the printing assembly 220 are provided with the clamping shaft 221, so the clamping member 120 is also provided with two bayonets 121, and each clamping shaft 221 can be clamped in the corresponding bayonet 121, so that the cover 200 is more stable when being covered on the base 110. Specifically, the clamping member 120 includes two connecting plates 123 and two side plates 122, the number of the side plates 122 is two and the two ends of the connecting plates 123 are respectively connected, each side plate 122 is provided with a bayonet 121, and one side plate 122 is provided with a clamping hole 124. The second transmission member 160 is connected to the side plate 122 through the protruding columns penetrating through the clamping holes 124, when the second transmission member 160 rotates, the side plate 122 connected with the second transmission member is pushed by the protruding columns, and the side plate 122 drives the other side plate 122 to rotate through the connecting plate 123, so that the bayonets 121 positioned on the two side plates 122 can simultaneously release the limit of the two clamping shafts 221, and synchronous uncovering is achieved.

Referring to fig. 4, it can be understood that, in order to enable the fastening member 120 to be rotatably mounted on the base 110, in some embodiments of the present utility model, the base 110 is further provided with a mounting frame 170, the mounting frame 170 is provided with a rotating shaft, the side plate 122 is provided with a rotating hole 125, the side plate 122 is sleeved on the rotating shaft through the rotating hole 125 so as to be rotatably mounted on the mounting frame 170, and meanwhile, in order to avoid a convex column, the mounting frame 170 is further provided with a strip hole 171, the convex column sequentially penetrates through the strip hole 171 and the fastening hole 124, and when the second transmission member 160 rotates, the convex column can slide in the strip hole 171 and simultaneously drives the fastening member 120 to rotate.

Referring to fig. 4, it can be appreciated that, in order to enable the latch 120 to return to the original position after the cover is opened, in some embodiments of the present utility model, the second transmission member 160 is installed with a torsion spring 180, and the torsion spring 180 has a tendency to drive the second transmission member 160 to rotate so as to drive the latch 120 to return to the original position. Therefore, after the cover 200 is turned over relative to the base 110 to open the cover, under the action of the torsion spring 180, the second transmission member 160 rotates to drive the clamping member 120 to return to the original position, and when the cover 200 is covered on the base 110 again, the torsion spring 180 can provide a pre-tightening force to the clamping member 120, so that the clamping member 120 can keep limiting the clamping shaft 221 through the bayonet 121, and accidental cover opening of the printer under the condition that the pressing member 130 is not pressed is prevented.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. A printer, comprising:

the machine seat comprises a seat body and a clamping piece, wherein the clamping piece is rotatably arranged on the seat body and is provided with a bayonet;

the machine cover can be connected to the base body in a turnover mode, the machine cover is provided with a first elastic piece and a printing assembly, the end portion of the printing assembly is provided with a clamping shaft, the clamping shaft can be clamped into the bayonet to cover the machine cover on the base body, and the first elastic piece can drive the machine cover to turn over relative to the base body to achieve uncovering;

the base further comprises a pressing piece, a second elastic piece and a flip transmission mechanism, the base body is provided with a sliding groove, the second elastic piece is located in the sliding groove and is abutted to the pressing piece, the pressing piece can overcome the elastic force of the second elastic piece to move along the sliding groove to push the flip transmission mechanism, so that the flip transmission mechanism drives the clamping piece to rotate, and the limit of the bayonet to the clamping shaft is relieved.

2. The printer of claim 1, wherein the flip drive mechanism includes a first drive member and a second drive member rotatably mounted to the housing, the first drive member is provided with a receiving portion and a first tooth portion, the second drive member is provided with a pushing portion and a second tooth portion, the first drive member and the second drive member are engaged with each other through the first tooth portion and the second tooth portion, and the pressing member is capable of abutting against the receiving portion to push the first drive member to rotate, and the pushing portion is used for pushing the clamping member to rotate.

3. A printer according to claim 2, wherein the bottom of the pressing member is provided with a projecting plate which can abut against the receiving portion to urge the first transmission member to rotate.

4. A printer according to claim 3, wherein the bottom of the pressing member is further provided with a limiting post, the second elastic member is a spring, and one end of the spring is sleeved on the outer side of the limiting post.

5. The printer of claim 4, wherein the number of the limiting posts is two, the two limiting posts are distributed on two sides of the extending plate, and the spring is sleeved on the outer side of each limiting post.

6. A printer according to claim 3, wherein the pressing member is further provided with a limiting buckle, and the limiting buckle can be clamped to the base body, so as to prevent the pressing member from being released from the chute.

7. The printer of claim 2, wherein the clamping member is provided with a clamping hole, the pushing portion is a protruding column, and the protruding column is disposed through the clamping hole and connected to the clamping member.

8. The printer of claim 7, wherein the clamping member comprises two connecting plates and two side plates, the two side plates are respectively connected to two ends of the connecting plates, the bayonet is formed in each side plate, and the clamping hole is formed in one side plate.

9. The printer of claim 8, wherein the base is provided with a mounting bracket, the side plate is rotatably mounted on the mounting bracket, the mounting bracket is provided with a long hole, and the protruding column sequentially penetrates through the long hole and the clamping hole.

10. A printer according to any one of claims 2 to 9, wherein the second transmission member is provided with a torsion spring which is able to urge the second transmission member to rotate to bring the catch back into position.