CN212171691U - Thermal printer with quick mounting and dismounting battery cover - Google Patents

Abstract

The utility model provides a thermal printer which can quickly assemble and disassemble a battery cover, comprising a shell and a lock catch component, wherein the outer side of the shell is provided with a battery jar, and the battery jar is provided with the battery cover; the shell is provided with a first sliding chute and a second sliding chute, the second sliding chute is arranged on the inner side of the shell, and the second sliding chute is arranged on the inner side wall of the battery jar; the side, facing the battery jar, of the battery cover is provided with a mounting groove and a limiting groove, the mounting groove is communicated with the limiting groove, and the second sliding groove is communicated with the limiting groove; the hasp subassembly is established on the inboard of shell, the hasp subassembly includes slip locking piece and spring, the slip locking piece is equipped with drive protruding piece and stopper, the protruding piece of drive is established in first spout and can be slided at first spout, the stopper can follow the mounting groove and slide into to the spacing groove, the stopper is established at second spout and spacing inslot, the spring abutment is between shell and slip locking piece, the spring drive stopper slides in second spout and spacing inslot, structure more than adopting, realize quick installation and the dismantlement of battery cover.

Description

Thermal printer with quick mounting and dismounting battery cover

Technical Field

The utility model relates to a printer field specifically is a thermal printer who relates to an installation fast and dismantle battery cover.

Background

Generally, a battery cover for covering a battery is installed in a printer with the battery, the battery cover is generally installed by matching a clamping block on the battery cover with a clamping groove on a shell of the printer, the clamping block on the battery cover is easily damaged due to forced pressing, and the service life of the battery cover is short in the process of repeatedly installing the battery cover of the battery for a long time. The method for disassembling the battery cover generally comprises the following steps: be provided with handle portion on the battery cover, set up the recess on the shell of printer, handle portion sets up in the recess, and operating personnel sinks the finger into the recess in, fixes handle portion, takes out handle portion from the recess hard, realizes dismantling of battery cover. However, in this battery cover disassembling method, because the size of the groove is small, especially the size of the smaller handheld printer, the operator sometimes cannot fix the handle part in the groove, and take the handle part out of the groove, and the battery cover can be disassembled smoothly by repeated operations, which is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick and easy to assemble and dismantle thermal printer of battery cover.

In order to achieve the main purpose, the thermal printer provided by the utility model comprises a shell, wherein a battery jar is arranged on the outer side of the shell, the battery jar is used for installing a battery, and a battery cover is arranged on the battery jar; the shell is provided with a first sliding chute and a second sliding chute, the first sliding chute is arranged on the inner side of the shell, and the second sliding chute is arranged on the inner side wall of the battery jar; the side, facing the battery jar, of the battery cover is provided with a mounting groove and a limiting groove, the mounting groove is communicated with the limiting groove, and the second sliding groove is communicated with the limiting groove; the thermal printer still includes the hasp subassembly, the hasp subassembly sets up on the inboard of shell, the hasp subassembly is including sliding locking piece and spring, the sliding locking piece is provided with protruding piece of drive and stopper, the protruding piece setting of drive can slide at first spout in first spout, the stopper can follow the mounting groove and slide into to the spacing groove, the stopper sets up at second spout and spacing inslot, the spring abutment is between shell and sliding locking piece, the spring drive stopper slides at second spout and spacing inslot.

According to the scheme, the driving protruding block of the sliding locking block is positioned in the first sliding groove on the outer side of the shell, the limiting block of the sliding locking block is positioned in the second sliding groove on the inner side of the battery jar, when the battery cover is covered on the battery jar, the mounting groove on the battery cover drives the limiting block to slide into the limiting groove, meanwhile, under the action of the spring, the limiting block slides in the limiting groove, and after the limiting block stops sliding, under the elastic action of the spring, the limiting block keeps still in the limiting groove, so that the battery cover is fixed on the shell, and the battery cover is mounted; when the battery cover needs to be disassembled, the driving protruding block is driven to move in the first sliding groove, the limiting block is driven to slide out of the limiting groove and the mounting groove, the battery cover is popped out under the limiting action without the limiting block, and the battery cover is disassembled; when the battery cover is installed, the limiting block is driven to enter the limiting groove by the installation groove to complete the installation of the battery cover on the shell, the movable sliding locking block avoids the damage of the installation of the clamping block, and the service life of the battery cover is prolonged; the battery cover is separated from the shell without the limiting function of the limiting block, so that the battery cover is detached conveniently and quickly.

The further scheme is that an assembly groove is formed in the shell, the assembly groove and the second sliding groove are arranged on the same plane, and the assembly groove is communicated with the second sliding groove.

It is thus clear that, when the installation slip locking piece on the shell, the slope is placed the stopper in the assembly trough, and the protruding piece of drive is relative with first spout simultaneously, and the protruding piece of drive gets into first spout in, and the first spout of the protruding piece of drive slides under the effect of spring simultaneously, drives the stopper and slides in the second spout.

The further scheme is that the mounting groove is provided with a guide inclined plane which is in sliding fit with the limiting block.

Therefore, under the guiding action of the guide inclined plane, the limiting block accurately enters the mounting groove and slides into the limiting groove from the mounting groove.

The battery cover is provided with a mounting convex block towards one side of the shell, and the mounting groove and the limiting groove are arranged on one side of the mounting convex block towards the second sliding groove.

It is thus clear that mounting groove and spacing groove set up on the protruding piece of installation one side towards the second spout for spacing groove and second spout intercommunication, the stopper of being convenient for gets into the spacing inslot, carry on spacingly to the battery cover.

The further scheme is that an installation limiting block is arranged on the battery cover, an installation limiting groove is formed in one side, provided with a battery groove, of the shell, the battery groove is communicated with the installation limiting groove, and the installation limiting block is arranged in the installation limiting groove.

It is thus clear that the installation stopper can be regarded as the handle portion that the battery cover took out from the shell, is convenient for take out fast of battery cover, and the installation stopper setting is in the installation spacing inslot, and the installation spacing groove is spacing to the installation stopper, makes the installation of battery cover more firm.

The further proposal is that the inner side of the shell is provided with a first convex block and a second convex block, a first sliding groove is arranged between the first convex block and the second convex block, and a second sliding groove is arranged on the second convex block; the sliding locking piece further comprises a locking piece body, the driving protruding piece extends towards the first sliding groove based on the locking piece body, the limiting block extends towards the second sliding groove and the limiting groove based on the locking piece body, and the locking piece body is arranged between the first protruding piece and the second protruding piece.

It is obvious that first protruding piece and second protruding piece carry on spacingly to the locking piece body, prescribe a limit to the slip direction of locking piece body, make the stopper accurately remove in second spout and spacing inslot.

The further scheme is that a stop block is arranged on the shell, an installation cavity is arranged on the locking block body, the first end of the spring is abutted to the stop block, and the second end of the spring is arranged in the installation cavity.

The further scheme is that two limiting blocks are arranged on the sliding locking block, the shell is correspondingly provided with two second sliding grooves, the battery cover is correspondingly provided with two limiting grooves, one limiting block corresponds to one second sliding groove and one limiting groove, and the two limiting blocks are arranged along the extending direction of the first sliding groove.

The further proposal is that one side of the driving convex block facing the outer side of the shell is provided with a plurality of convex strips.

Therefore, the arrangement of the convex strips is convenient for a user to push and drive the convex blocks more labor-saving.

Drawings

Fig. 1 is a structural view of a locking assembly in a thermal printer embodiment of the present invention, in which a battery cover is quickly mounted and dismounted, in a locked state.

Fig. 2 is a structural view of the locking assembly in an unlocked state in an embodiment of the thermal printer with the battery cover quickly mounted and dismounted according to the present invention.

Fig. 3 is a structural diagram of a latch assembly in an embodiment of a thermal printer for quickly mounting and dismounting a battery cover according to the present invention.

Fig. 4 is a cross-sectional view of the latch assembly in the embodiment of the thermal printer with the battery cover quickly mounted and dismounted according to the present invention in a locked state.

Fig. 5 is a structural diagram of the thermal printer with the battery cover removed for quick assembly and disassembly of the battery cover according to the embodiment of the present invention.

Fig. 6 is a rear view of an embodiment of the thermal printer of the present invention with a battery cover quickly installed and removed.

Fig. 7 is a perspective view of an embodiment of a thermal printer housing with a battery cover quickly installed and removed according to the present invention.

Fig. 8 is a perspective view of a battery cover in an embodiment of a thermal printer for quickly mounting and dismounting the battery cover according to the present invention.

Fig. 9 is a perspective view of a sliding lock block in an embodiment of a thermal printer for quickly mounting and dismounting a battery cover according to the present invention.

Fig. 10 is a structural view of a sliding lock piece provided on a case in an embodiment of a thermal printer for quickly mounting and dismounting a battery cover according to the present invention.

Fig. 11 is a first cross-sectional view of a battery cover when the battery cover is mounted in an embodiment of a thermal printer in which the battery cover is quickly mounted and dismounted.

Fig. 12 is a second sectional view of the battery cover when the battery cover is mounted in the embodiment of the thermal printer in which the battery cover is quickly mounted and dismounted according to the present invention.

Fig. 13 is a cross-sectional view of the battery cover after the battery cover is mounted in the embodiment of the thermal printer for quickly mounting and dismounting the battery cover according to the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1 and 2, the thermal printer with the battery cover rapidly mounted and dismounted comprises a printing assembly and a paper bin 1, wherein the paper bin 1 is used for placing printing paper, the printing assembly comprises a thermal sensitive sheet and a rubber roller 11, a paper feeding channel is arranged between the thermal sensitive sheet and the rubber roller 11 and communicated with the paper bin 1, and the width direction of the paper bin 1 is the same as the axial direction of the rubber roller 11.

Thermal printer includes locking Assembly 2, and locking Assembly 2 sets up in paper storehouse 1, and locking Assembly 2 includes slider 3 and latch segment 4, and slider 3 includes spacer 31 and gleitbretter 32, and in this embodiment, spacer 31 sets up perpendicularly on gleitbretter 32, spacer 31 and gleitbretter 32 integrated into one piece, and the diapire clearance fit of gleitbretter 32 and paper storehouse 1 is convenient for gleitbretter 32 to realize sliding in paper storehouse 1.

Referring to fig. 3, the locking block 4 is hinged to the spacer 31, a first clamping portion 41 is arranged on the locking block 4, a plurality of second clamping portions 12 are arranged on the side wall of the paper bin 1 along the width direction of the paper bin 1, and the first clamping portion 41 is matched with the second clamping portions 12. In this embodiment, the first engaging portion 41 is a locking protrusion, and the second engaging portion 12 is a locking groove.

Because the width direction setting of a plurality of second joint portion 12 along paper storehouse 1, beat printing paper and place in paper storehouse 1, if beat when the width of printing paper is less than the width of paper storehouse 1, drive slider 3 removes, drive latch segment 4's removal, move to suitable position after slider 3 in paper storehouse 1, when the width adaptation paper storehouse 1 lateral wall that beats promptly and the distance between spacer 31, see figure 1, rotate latch segment 4, make first joint portion 41 and the cooperation of second joint portion 12, make slider 3 fix in paper storehouse 1 with latch segment 4, thereby realize the transform of the width size in the space of placing the printing paper in paper storehouse 1, be convenient for the printer can adapt to not unidimensional printing paper. When not unidimensional printing paper needs to be changed, see fig. 2, through rotating locking block 4, break off being connected between first joint portion 41 and the second joint portion 12, rethread removes slider 3, the position of adjustment locking block 4, the width size in the transform paper storehouse to be connected through the cooperation of first joint portion 41 and the second joint portion 12 of different positions, can place the width size of beating printing paper in the change paper storehouse, realize that the paper storehouse is effectual spacing to the printing paper.

In this embodiment, be provided with on the latch segment 4 and keep away dead slot 42, the latch segment 4 is provided with first lateral wall 43 and second lateral wall 44 respectively in the both sides of keeping away dead slot 42, spacer 31 sets up in keeping away dead slot 42, thereby spacer 31 is located between first lateral wall 43 and the second lateral wall 44, it is spacing to be convenient for spacer 31 to carry out latch segment 4, make latch segment 4 can not squint on spacer 31, after latch segment 4 moves along with slider 3, first joint portion 41 can accurately cooperate with second joint portion 12. The locking assembly further comprises a hinge post 45, the hinge post 45 sequentially passing through the first side wall 43, the spacer 31 and the second side wall 44 to complete the hinge arrangement of the locking block 4 on the spacer 31. A limiting groove 33 is formed in the spacer 31, the limiting groove 33 is arc-shaped, a limiting column 46 is arranged on the locking block 4, and the limiting column 46 is arranged in the limiting groove 33; the limiting column 46 is arranged in the arc-shaped limiting groove 33, and the limiting groove 33 limits the rotation direction of the locking block 4, so that the first clamping portion 41 and the second clamping portion 12 are accurately matched. The side wall of the limiting groove 33 is provided with a placing concave part 331, and the limiting column 46 is in limiting fit with the placing concave part 331. When first joint portion 41 and second joint portion 12 were in the fit state, spacing post 46 set up in placing concave part 331, place concave part 331 and carry on spacingly to spacing post 46, avoid in the printing process, first joint portion 41 keeps away from second joint portion 12 because of the vibration and removes, disconnection and second joint portion 12's connection.

Be provided with step 34 on the spacer 31, the latch segment 4 sets up in step 34 department, and in this embodiment, the top surface 341 of step 34 is coplanar with the outer wall 431 of first lateral wall 43, makes the one side of hasp subassembly 2 towards printing paper be a smooth surface for the spacing effect of hasp subassembly 2 to printing paper is better, avoids leading to printing paper the condition that the skew appears at the printing in-process because the unevenness on the hasp subassembly 2. In this embodiment, the hinge pillar 45 is located between the second clamping portion 12 and the position-limiting pillar 46, and the position-limiting pillar 46 is disposed between the hinge pillar 45 and the step 34, so that the structural distribution of the locking assembly is more reasonable. The outer wall 431 of the first side wall 43 and the outer wall 441 of the second side wall 44 are further provided with a handle portion 442 for driving the locking block 4 to rotate.

Referring to fig. 4, a limiting sliding groove 13 is provided on the side wall of the paper bin 1, and the limiting sliding groove 13 extends along the width direction of the paper bin 1. The slide sheet 32 is provided with a slide protrusion 321, and the slide protrusion 321 is disposed in the limit chute 13, so that the slide sheet 32 moves along the extending direction of the paper deck 1. In the present embodiment, the paper deck 1 is provided with two position-limiting chutes 13, the sliding piece 32 is correspondingly provided with two sliding protrusions 321, and the two sliding protrusions 321 are respectively disposed on two opposite sides perpendicular to the paper feeding direction. Two spacing spouts 13 restrict the moving direction of slider 3, and the slider 3 of being convenient for simultaneously removes the in-process and can keep balance in paper storehouse 1, avoids appearing the one end skew of gleitbretter 3. The openings of the two limiting sliding grooves 13 are respectively provided with a first inclined part 131, the two sliding protrusions 321 are respectively provided with a second inclined part 322, and the two ends of the sliding block 3 are respectively arranged in the two limiting sliding grooves 13 through the matching between the first inclined part 131 and the second inclined part 322. In this embodiment, the second clamping portion 12 is located on one side of the extending direction of the limiting sliding chute 13, the bottom wall of the paper bin 1 is arc-shaped, correspondingly, the sliding sheet 32 is also arc-shaped, and the second clamping portion 12 is also arc-shaped.

The printer in this embodiment is provided with a structure for realizing quick installation and disassembly of the battery cover, the installation and disassembly of the battery cover on the shell are realized by installing the sliding locking block on the shell of the printer, and when the battery cover is installed, the battery cover drives the limiting block in the sliding locking block to slide into the limiting groove of the battery cover, so that the connection between the battery cover and the shell is completed, and the installation of the battery cover on the shell is realized. When the battery cover needs to be disassembled, the limiting block of the sliding locking block slides out of the limiting groove of the battery cover by driving the sliding locking block to move, and the battery cover is disconnected from the shell after the limiting function of the limiting block is not performed on the battery cover, so that the battery cover is disassembled.

Referring to fig. 5 and 6, the thermal printer further includes a housing 5, a latch assembly including a sliding lock 6 and a spring, and a battery cover 7. On the outside of the housing 5 a battery well 8 is provided, which battery well 8 is used for mounting a battery, see the figure, the battery lid 7 covering the battery well 8.

Referring to fig. 5, the housing 5 is provided with a first slide groove 51 and a second slide groove 52, the first slide groove 51 being provided on the inner side of the housing 5, and the second slide groove 52 being provided on the inner side wall of the battery container 8. In this embodiment, the printing assembly and the paper deck 1 are also provided on the inside of the housing 5. The opening of the battery container 8 faces the outside of the case 5, so that the battery container 8 is recessed toward the inside of the case 5, and the second chute 52 is provided on the inner side wall of the battery container 8 to communicate the battery container 8 with the inside of the case 5.

Referring to fig. 7, a fitting groove 53 is provided on the inner side of the housing 5, the fitting groove 53 is provided on the same plane as the second slide groove 52, the fitting groove 53 is also provided on the inner side wall of the battery container 8, the fitting groove 53 communicates with the second slide groove 52, and the fitting groove 53 is used for mounting the slide lock piece 6 on the housing 5.

The inner side of the housing 5 is further provided with a first protrusion 54 and a second protrusion 55, the first sliding groove 51 is disposed between the first protrusion 54 and the second protrusion 55, the second sliding groove 52 is disposed on the second protrusion 55, and the first protrusion 54 and the second protrusion 55 are used for limiting the sliding lock 6 in the moving direction.

Referring to fig. 8, one side of the battery cover 7 facing the housing 5 is provided with an installation protrusion 71, a first side 711 of the installation protrusion 71 is provided with an installation groove 9 and a limiting groove 10, the installation groove 9 is communicated with the limiting groove 10, the first side 711 of the installation protrusion 71 is arranged opposite to one side of the battery cover 8 provided with the second sliding groove 52, so that the installation groove 9 and the limiting groove 10 are arranged on one side of the installation protrusion 71 facing the second sliding groove 52, the limiting groove 10 is communicated with the second sliding groove 52, a limiting block of the sliding lock 6 can conveniently enter the limiting groove 10, and the battery cover 7 is limited.

Referring to fig. 9, a latch assembly is provided on the inside of the housing 5, the latch assembly including the slide lock piece 6 and a spring 64, the spring 64 abutting between the slide lock piece 6 and the housing 5.

Referring to fig. 10, in the present embodiment, the sliding lock block 6 is provided with a lock block body 61, a driving protrusion block 62 and a limiting block 63, the lock block body 61 is arranged between a first protrusion block and a second protrusion block, and the first protrusion block and the second protrusion block limit the lock block body 61, so as to limit the sliding direction of the lock block body 61; the drive projection 62 extends toward the first slide groove 51 based on the lock block body 61, and the drive projection 62 is slidable in the first slide groove 51 in the extending direction of the first slide groove 51. The limiting block 63 extends towards the second sliding groove 52 and the limiting groove 10 based on the locking block body 61, the limiting block 63 can slide into the limiting groove 10 from the mounting groove 9, and the limiting block 63 is arranged in the second sliding groove 52 and the limiting groove 10 and simultaneously moves in the second sliding groove 52 and the limiting groove 10.

When installing slip locking piece 6 on shell 5, the slope is placed stopper 63 in assembly groove 53, and drive protruding piece 62 is relative with first spout 51 simultaneously, and drive protruding piece 62 gets into first spout 51 in, drives protruding piece 62 first spout 51 and slides simultaneously under the effect of spring 64 and slides, drives stopper 63 and slides in second spout 52. The mounting groove 9 is provided with a guide inclined plane 91, and under the guide effect of the guide inclined plane 91, the limiting block 63 accurately enters the mounting groove 9 and slides into the limiting groove 10 from the mounting groove 9.

The housing 5 is provided with a stopper 56, the locking piece body 61 is provided with an installation cavity 611, a first end of the spring 64 abuts against the stopper, a second end of the spring 64 is arranged in the installation cavity 611, and the spring 64 is used for driving the limiting block 63 to slide in the second sliding groove 52 and the limiting groove 10.

The battery cover 7 is provided with an installation limiting block 73, one side of the shell 5, which is provided with the battery jar 8, is provided with an installation limiting groove 57, the battery jar 8 is communicated with the installation limiting groove 57, and the installation limiting block 73 is arranged in the installation limiting groove 57. The mounting limit block 73 can be used as a handle part for taking the battery cover 7 out of the shell 5, so that the battery cover 7 can be taken out quickly, the mounting limit block 73 is arranged in the mounting limit groove 57, and the mounting limit groove 57 limits the mounting limit block 73, so that the mounting of the battery cover 7 is more stable.

The driving protrusion 62 of the sliding lock 6 is located in the first sliding slot 51 outside the housing 5, and the limiting block 63 of the sliding lock 6 is located in the second sliding slot 52 inside the battery jar 8, as shown in fig. 11 and 12, when the battery lid 7 is closed on the battery jar 8, the mounting slot 9 on the battery lid 7 drives the limiting block 63 to slide into the limiting slot 10, and simultaneously, under the action of the spring 64, the limiting block 63 slides in the limiting slot 10, as shown in fig. 13, after the sliding of the limiting block 63 is stopped, under the action of the elastic force of the spring 64, the limiting block 63 is kept stationary in the limiting slot 10, so that the battery lid 7 is fixed on the housing 5, and the installation of the battery lid 7 is completed.

When the battery cover 7 needs to be disassembled, the driving convex block 62 is driven to move in the first sliding groove 51 to drive the limiting block 63 to slide out of the limiting groove 10 and the mounting groove 9, the battery cover 7 is popped up under the limiting action without the limiting block 63, and the disassembly of the battery cover 7 is realized; when the battery cover 7 is installed, the limiting block 63 is driven to enter the limiting groove 10 by the installation groove 9 to complete the installation of the battery cover 7 on the shell 5, the movable sliding locking block 6 avoids the damage of the installation of a clamping block and prolongs the service life of the battery cover 7; the battery cover 7 is separated from the shell 5 without the limiting function of the limiting block 63, so that the battery cover 7 can be detached conveniently and quickly.

In this embodiment, the sliding lock piece 6 is provided with two limiting blocks 63, the housing 5 is correspondingly provided with two second sliding grooves 52, the battery cover 7 is correspondingly provided with two limiting grooves 10, one limiting block 63 corresponds to one second sliding groove 52 and one limiting groove 10, and the two limiting blocks 63 are arranged along the extending direction of the first sliding groove 51.

The driving protrusion block 62 is provided with a plurality of protrusion bars 621 on a side facing the outside of the housing 5, and the protrusion bars 621 are provided to facilitate a user to push the driving protrusion block 62 more easily.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims (9)

1. The thermal printer comprises a shell, wherein a battery jar is arranged on the outer side of the shell and used for installing a battery, and a battery cover is arranged on the battery jar;

the method is characterized in that:

the shell is provided with a first sliding groove and a second sliding groove, the first sliding groove is arranged on the inner side of the shell, and the second sliding groove is arranged on the inner side wall of the battery jar;

the side, facing the battery jar, of the battery cover is provided with a mounting groove and a limiting groove, the mounting groove is communicated with the limiting groove, and the second sliding groove is communicated with the limiting groove;

thermal printer still includes the hasp subassembly, the hasp subassembly sets up on the inboard of shell, the hasp subassembly is including sliding locking piece and spring, the sliding locking piece is provided with protruding piece of drive and stopper, the protruding piece setting of drive is in the first spout and can first spout slides, the stopper can be followed the mounting groove slides in extremely the spacing groove, the stopper sets up the second spout with the spacing inslot, the spring abutment in the shell with between the sliding locking piece, spring drive the stopper is in the second spout with slide in the spacing inslot.

2. The thermal printer of claim 1, wherein the battery cover is quickly attached and detached, and the thermal printer further comprises:

the shell is provided with an assembly groove, the assembly groove and the second sliding groove are arranged on the same plane, and the assembly groove is communicated with the second sliding groove.

3. The thermal printer of claim 1, wherein the battery cover is quickly attached and detached, and the thermal printer further comprises:

the mounting groove is provided with a guide inclined plane, and the guide inclined plane is used for being in sliding fit with the limiting block.

4. The thermal printer of claim 1, wherein the battery cover is quickly attached and detached, and the thermal printer further comprises:

the battery cover is provided with an installation convex block towards one side of the shell, and the installation groove and the limiting groove are arranged on one side, facing the second sliding groove, of the installation convex block.

5. The thermal printer of claim 4, wherein the battery cover is quickly attached and detached, and the thermal printer further comprises:

the battery cover is provided with an installation limiting block, one side of the shell, which is provided with the battery jar, is provided with an installation limiting groove, the battery jar is communicated with the installation limiting groove, and the installation limiting block is arranged in the installation limiting groove.

6. The thermal printer of quick attach and detach battery cover according to any one of claims 1 to 5, wherein:

the inner side of the shell is provided with a first protruding block and a second protruding block, the first sliding groove is arranged between the first protruding block and the second protruding block, and the second sliding groove is arranged on the second protruding block;

the sliding locking piece further comprises a locking piece body, the driving protruding piece is based on the orientation of the locking piece body to the first sliding groove in an extending mode, the limiting block is based on the orientation of the locking piece body to the second sliding groove and the limiting groove in an extending mode, and the locking piece body is arranged between the first protruding piece and the second protruding piece.

7. The thermal printer with quick mounting and dismounting of the battery cover according to claim 6, wherein:

the lock is characterized in that a stop block is arranged on the shell, an installation cavity is arranged on the lock body, the first end of the spring is abutted to the stop block, and the second end of the spring is arranged in the installation cavity.

8. The thermal printer of claim 1, wherein the battery cover is quickly attached and detached, and the thermal printer further comprises:

the battery cover is provided with two limiting grooves, one limiting block corresponds to one second sliding groove and one limiting groove, and the two limiting blocks are arranged along the extending direction of the first sliding groove.

9. The thermal printer of claim 1, wherein the battery cover is quickly attached and detached, and the thermal printer further comprises:

the drive protruding block is provided with a plurality of protruding strips on one side of the outside of the shell.

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