CN212446764U

CN212446764U - Handheld electronic scale printer with front panel opened

Info

Publication number: CN212446764U
Application number: CN202021828522.8U
Authority: CN
Inventors: 胡琳; 刘鹏; 周颖; 祝转旺
Original assignee: Zhuhai Howbest Label Printer Co ltd
Current assignee: Zhuhai Howbest Label Printer Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-02-02
Anticipated expiration: 2030-08-27

Abstract

The utility model provides a hand-held electronic scale printer with a front panel opened, wherein a heat sensitive sheet of the electronic scale printer is arranged on a casing, a rubber roll is arranged on a paper bin cover, a scale hook is positioned at the lower side of the casing, and the scale hook is connected with a weighing sensor; still including opening lid piece, driving piece, latch fitting, first elastic component and second elastic component, the axial tip of rubber roll is located the locked groove of latch fitting, driving piece and the cooperation of the inclined plane of opening lid piece, and the drive division of driving piece passes the perforation and adjoins with the connecting plate, and the removal drive latch fitting of driving piece removes. Through setting up terminal surface before and utilizing the drive division to adjoin to the connecting plate that is located the middle part, not only convenient operation, and the drive power of drive division exerts the locking arm of average transmission to both sides behind the connecting plate to and the locked groove of both sides, improve and uncap and feel.

Description

Handheld electronic scale printer with front panel opened

Technical Field

The utility model relates to a heat-sensitive printing field specifically is a handheld electronic scale printer that relates to a front panel uncapped.

Background

The existing weighing and printing all-in-one machine is generally large in size and can weigh heavier objects, and for some objects or goods with lighter weight, the existing heavy all-in-one machine is not convenient for logistics personnel to carry and use. And some current hand-held type printers owing to need set up the paper storehouse of beating printing paper, the subassembly of weighing and print relevant subassembly, and foretell device need arrange in miniature hand-held type electronic scale printer, so arrange position and cooperation relation between the device especially always, not only directly influence the miniaturization and the stability of structure, still directly influence the user and feel and operate experience.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a uncap in order to improve the handheld electronic scale printer of uncapping and feeling in the front panel.

In order to realize the first purpose of the utility model, the utility model provides a handheld electronic scale printer of front panel uncap, including weighing subassembly, casing, paper storehouse lid, rubber roll and heat-sensitive piece, the heat-sensitive piece sets up on the casing, the rubber roll rotationally sets up on the paper storehouse lid, the casing is provided with the paper storehouse, paper storehouse lid closes on the paper storehouse, the paper storehouse lid articulates with the casing and can open towards the front side, form the exit slot towards the front side between paper storehouse lid and the casing, heat-sensitive piece and rubber roll are relative, form the paper feed passageway between heat-sensitive piece and the rubber roll, the paper feed passageway communicates between paper storehouse and exit slot; the weighing component comprises a weighing sensor and a scale hook, the weighing sensor is positioned in the casing, the scale hook is positioned outside the casing and positioned on the lower side of the casing in the vertical direction, and the scale hook is connected with the weighing sensor; the handheld electronic scale printer further comprises a cover opening component, a driving component, a locking component, a first elastic component and a second elastic component, wherein the shell is provided with a rubber roller installation position, the rubber roller is positioned in the rubber roller installation position, the shell is respectively provided with installation grooves at two axial ends of the rubber roller, one axial end of the rubber roller is positioned in one installation groove, the locking component comprises a connecting plate and locking arms arranged at two sides of the connecting plate, the locking arms are provided with locking grooves at the installation grooves, each locking groove is provided with a locking notch, the axial ends are positioned in the locking grooves, and the first elastic component is connected between the locking component; a sliding groove is arranged in the machine shell along the vertical direction, a through hole penetrates through the bottom of the sliding groove in the vertical direction, an operation hole is communicated with the front side of the sliding groove, and the operation hole penetrates through the front end face of the machine shell; the driving piece is provided with first cooperation inclined plane, the driving piece sets up in the spout and can follow the vertical direction and remove, it is provided with second cooperation inclined plane to uncap the piece, uncap the movably setting of piece in the handle hole, first cooperation inclined plane and the cooperation of second cooperation inclined plane, the first end and the casing of second elastic component adjoin, the second end and the piece of uncapping or the driving piece of second elastic component adjoin, the drive division of driving piece passes the perforation and adjoins with the connecting plate, the removal drive latch fitting of driving piece removes.

It can be seen by above-mentioned scheme, through the axial tip location of mounting groove and locked groove to the rubber roll, the rubber roll can rotate steadily then realizes stabilizing the paper feed, and through spout and the handle hole of setting in the front side, the inclined plane cooperation of lid piece and driving piece is opened in the cooperation, press the lid piece at the printer towards user's front side, order about the removal of driving piece, then realize the removal of drive latch fitting and locked groove, relieve the locking to axial tip in proper order, thereby uncap smoothly, because set up terminal surface in the front and utilize the drive division to adjoin with the connecting plate that is located the middle part, not only convenient operation, and the drive division's drive power is exerted the locking arm of average transmission to both sides behind the connecting plate, and the locked groove of both sides, improve and uncap and feel, thereby avoid the uneven scheduling problem of uncapping of.

The hinge position between the paper bin cover and the shell is positioned on the lower side of the paper outlet, and the cover opening piece is positioned on the upper side of the paper outlet.

From top to bottom, through setting up the downside at the exit slot with articulated position for the paper storehouse lid is opened down often opening, utilizes the bearing capacity of paper storehouse lid, can conveniently print the change and the installation of scroll like this.

According to a further scheme, the handheld electronic scale printer further comprises a display screen, wherein the display screen is located on the front end face of the shell, and the display screen is located above the paper outlet.

From top to bottom, because the weighing hook sets up at the downside, also can convolute down from the play paper of exit slot output and buckle, so set up the display screen in the top of exit slot, make the play paper of beating paper then can not cause sheltering from to the display screen, the user can know the information of display screen at any time.

The rubber roller mounting position is arranged on the machine shell, mounting plates are arranged on two sides of the rubber roller mounting position respectively, the mounting grooves are located on the mounting plates, the locking piece is hinged to the mounting plates, the thermosensitive plate is arranged between the two mounting plates, and the first elastic piece is elastically abutted between the thermosensitive plate and the connecting plate.

From top to bottom, through the installation location of mounting panel to latch fitting and heat sensitive piece, make then the latch fitting can rotate steadily, and the heat sensitive piece can be better under the effect of elastic component with the heat sensitive piece relatively cooperate.

The driving part is provided with a positioning groove, the first matching inclined surface is arranged in the positioning groove upwards, the cover opening part is provided with a positioning column, the second matching inclined surface is arranged on the positioning column downwards, and the positioning column is located in the positioning groove.

It is thus clear that through the cooperation of constant head tank and reference column for the inclined plane cooperation removal of opening the lid and driving piece is more stable.

The driving piece is provided with a limiting plate at the side part of the positioning groove, the second elastic piece is located in the sliding groove, and the second elastic piece is elastically abutted between the limiting plate and the bottom wall of the sliding groove.

It is thus clear that, the location is installed to the elastic component to limiting plate and spout diapire through the lateral part, provides elasticity restoring force for the driving piece.

The cover opening part is provided with a clamping part on the side part of the positioning column, a clamping groove is formed in the side wall of the sliding groove, and the clamping part is clamped with the clamping groove.

Therefore, the cover opening piece can move in the sliding groove and the operation hole in a limited manner through the clamping of the clamping part and the clamping groove.

In a further aspect, the casing includes a bottom case and a face plate connected to each other, the locking member and the heat sensitive sheet are disposed on the bottom case, and the slide groove, the operation hole, the opening cover member and the driving member are disposed on the face plate.

From the above, through setting up spout, handle hole, division lid and driving piece on the panel, and the panel is detachable to be connected with the drain pan for the assembly of heat sensitive piece and latch fitting is with separately when opening the lid and the assembly of driving piece, thereby simplifies the assembly and improves efficiency.

According to a further scheme, the handheld electronic scale printer further comprises a cutter, the cutter is fixedly connected to the panel, the panel and the paper bin cover enclose a paper outlet, and the cutter is located at the paper outlet.

From the above, it can be seen that the mounting of the cutters at the face plate also facilitates simplified assembly and positioning.

A further scheme is that the lower side of the shell in the vertical direction is provided with a threading hole, the paper bin cover is provided with a wire groove, the handheld electronic scale printer further comprises a wire cover, the wire cover covers the wire groove, an inlet is formed in the position, close to the threading hole, of the wire cover, and an outlet is formed in one end, far away from the inlet, of the wire groove.

From top to bottom, through set up the through wires hole in the downside to and set up wire casing and line lid at the paper storehouse lid, thereby the data line can be worn out from the through wires hole with hiding, and get into to the wire casing from the entry, draw forth from the export again, not only improve wiring aesthetic measure and improve connection stability.

Drawings

FIG. 1 is a diagram of an embodiment of a printer with a hand-held electronic scale according to the present invention.

Fig. 2 is a structural diagram of the embodiment of the handheld electronic scale printer according to the present invention after the paper compartment cover and the line cover are opened.

Fig. 3 is an exploded view of an embodiment of the handheld electronic scale printer of the present invention.

FIG. 4 is a block diagram of a panel, a driving member and a lid member of an embodiment of a printer of the present invention.

FIG. 5 is a schematic diagram of an embodiment of a hand-held electronic scale printer according to the present invention showing a panel, a driving member, and a lid opening member at another viewing angle.

FIG. 6 is a cross-sectional view of an embodiment of the present invention handheld electronic scale printer at the location of the drive member in the locked position.

Fig. 7 is a cross-sectional view of an embodiment of the handheld electronic scale printer of the present invention in an unlocked state at the drive member.

FIG. 8 is a partial structural view of the embodiment of the handheld electronic scale printer according to the present invention, in which the handle is under tension.

FIG. 9 is a diagram of a handle and a positioning member of an embodiment of a printer of the present invention.

Fig. 10 is a cross-sectional view of an embodiment of the hand-held electronic scale printer of the present invention with the handle member in a retracted state.

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

Detailed Description

Referring to fig. 1 to 3, the electronic scale printer 1 includes a weighing assembly, a housing, a paper compartment cover 4, a rubber roller 41, a heat sensitive sheet 24, a display screen 15, a cover opening member 35, a driving member 34, a locking member 23, a plurality of first elastic members 25, and two second elastic members 343, the housing includes a bottom case 2 and a panel 3 connected to each other, the bottom case 2 encloses a device accommodating chamber, the panel 3 and the paper compartment cover 4 are located toward a front side of a user, and the device accommodating chamber is connected to the bottom case 2. The display screen 15 is disposed on the front face of the panel 3, which is the front face of the cabinet facing the user in this embodiment.

The bottom shell 2 is provided with a rubber roller mounting position and a paper bin 21, the rubber roller mounting position is close to the paper bin 21, the bottom shell 2 is provided with mounting plates 22 on two axial sides of the rubber roller mounting position respectively, the mounting plates 22 are provided with mounting grooves 221, the mounting grooves 221 are provided with outward openings, one axial end portion 411 of the rubber roller 41 is arranged in one mounting groove 221, one axial end portion 411 of the rubber roller 41 is connected and provided with a driving gear, and the driving gear can be connected with a motor and a speed change gear set, so that the rubber roller 41 can rotate in the rubber roller mounting position.

The heat-sensitive sheet 24 is arranged between the two mounting plates 22, the heat-sensitive sheet 24 is positioned above the rubber roller 41, the heat-sensitive sheet 24 is opposite to the rubber roller 41, a paper feeding channel is formed between the heat-sensitive sheet 24 and the rubber roller 41, and the paper feeding channel is communicated between the paper bin 21 and the paper outlet 101.

The locking piece 23 comprises a connecting plate 231 and locking arms 232 arranged on two sides of the connecting plate 231, the locking arms 232 are perpendicular to the connecting plate 23, the connecting plate 23 is horizontally extended, the locking arms 232 are provided with hinge holes 234, the mounting plate 22 is provided with hinge parts at corresponding positions, the hinge holes 234 of the locking arms 232 are hinged to the hinge parts, so that the locking arms 232 are hinged to the mounting plate 22 and rotate. Locking arm 232 is provided with a locking slot 233 at mounting slot 221, locking slot 233 having a locking notch, axial end 411 being located within locking slot 233. First elastic component 25 adopts the spring, and a plurality of first elastic components 25 distribute along the horizontal direction, and first elastic component 25 elasticity butt is between heat-sensitive piece 24 and connecting plate 231, and of course outside this embodiment, to the elasticity of latch fitting 23 resets, can also connect first elastic component 25 between latch fitting 23 and casing, like the connection of extension spring or torsional spring, all can provide elasticity for latch fitting 23 and reset.

Paper storehouse lid 4 and drain pan 2 are articulated at articulated position 45 of the downside of vertical direction respectively for paper storehouse lid 4 is opened towards the front side, and paper storehouse lid 4 is provided with the mounting groove, and rubber roll 41 rotationally sets up on the mounting groove of paper storehouse lid 4, and the axial tip 411 of rubber roll 41 also is located the mounting groove, and paper storehouse lid 4 is provided with near rubber roll 41 and examines paper module 42, examines paper module 42 and includes the infrared sensor who distributes along the horizontal direction.

Bottom shell 2 is provided with through wires hole 28 in the downside of vertical direction, and through wires hole 28 is located the one side of the horizontal direction of articulated position 45, and paper storehouse lid 4 is provided with wire casing 43, and wire casing 43 is located the lateral part of paper storehouse lid 4, and handheld electronic scale printer 1 still includes line lid 44, and line lid 44 covers closes wire casing 43, and line lid 44 is provided with entry 441 in the department of being close to through wires hole 28, and entry 441 is relative with through wires hole 28, and wire casing 43 is provided with export 431 in the one end of keeping away from entry 441. Be provided with in the drain pan 2 and be provided with the main control circuit board near latch 23 department, some data lines of main control circuit board are walked the line and are drawn forth from through wires hole 28 from the inside of drain pan 2, then enter into wire casing 43 from entry 441 in, draw forth and be connected with examining paper module 42 from export 431 to the main control circuit board can acquire and examine the paper signal.

Referring to fig. 4 and 5 in combination with fig. 3, the panel 3 is disposed above the paper bin cover 4, the panel 3 and the paper bin cover 4 enclose a paper outlet 101, the paper outlet 101 faces the front side, the cutter 33 is fixedly connected to the panel 3, and the cutter 33 is located at the paper outlet 101.

A chute 31 is provided inside the panel 3 in the vertical direction, a through hole 311 is provided in the chute 31 at the bottom in the vertical direction, the through hole 311 penetrates the bottom wall of the chute 31, an operation hole 32 is provided in communication with the front side of the chute 31, the operation hole 32 extends in the horizontal direction, the operation hole 32 penetrates the front end surface of the panel 3, and two side walls of the chute 31 are provided with engaging grooves 312, respectively.

The driving member 34 is arranged in a T shape, the driving member 34 is provided with a positioning groove 341 in the middle, the driving portion 345 of the driving member 34 is located at the lower side of the positioning groove 341 and protrudes outwards, the driving member 34 is provided with limiting plates 342 at two side portions of the positioning groove 341, and the first matching inclined surface 344 is upwardly arranged in the positioning groove 341.

The lid opening part 35 has a base plate, a positioning column 351 is provided on the base plate of the lid opening part 35, a second matching inclined plane 353 is provided downward on the positioning column 351, the lid opening part 35 is provided with a clamping part 352 at two side parts of the positioning column 351, and the first matching inclined plane 344 and the second matching inclined plane 353 can be arranged in a straight inclined plane or a continuous arc inclined plane. The positioning post 351 is located in the positioning groove 341, and the first engaging slant 344 is slant-engaged with the second engaging slant 353.

The two second elastic members 343 are provided in a spring manner, the driving member 34 and the second elastic members 343 are provided in the chute 31, the driving member 34 is provided in the chute 31 and can move in the vertical direction, and the second elastic members 343 elastically abut between the limiting plate 342 and the bottom wall of the chute 31. The opening member 35 is disposed in the operation hole 32 so as to be movable in the horizontal direction, a base plate of the opening member 35 is in clearance fit with the operation hole 32, the locking portion 352 is engaged with the locking groove 312, and the locking portion 352 is movable in the locking groove 312.

Referring to fig. 6, the hand-held electronic scale printer is in a closed and locked state, the hinge 45 is located at a lower side of the paper outlet 101, the paper bin cover 4 covers the paper bin 21, the cover opening member 35 is located at an upper side of the paper outlet 101, and the cover opening member 35 and the driving member 34 are located above a middle position of the connection plate 231. Under the upward elastic force of the second elastic member 343 to the driving member 34, the lid opening member 35 is ejected outward and is restricted in position by the locking portion 352, and the display screen 15 is located above the paper output port 101 and above the lid opening member 35. The heat-sensitive sheet 24 and the rubber roller 41 are both positioned above the paper bin.

Referring to fig. 7, by the horizontal movement of pressing the opening cover 35 inward, the driving member 34 is driven to move downward in the vertical direction by the inclined surface engagement, so that the driving portion 345 of the driving member 34 passes through the through hole 311 to abut on the connecting plate 231, the locking member 23 is rotated by driving the connecting plate 231, and finally the locking groove 233 is moved, the locking groove 233 is separated from the axial end 411 of the rubber roller 41, and the paper deck cover 4 and the rubber roller 41 can be opened toward the front side, so that the printing paper can be replaced in the paper deck.

Referring to fig. 8 to 10 and fig. 7, the handheld electronic scale printer 1 further includes a positioning member 13, a handle member 14, a battery 16, a cover plate 17 and two clamping members 18, the handle member 14 includes a handle plate 141 and two extending plates 142 located at two sides of the handle plate 141, the handle plate 141 is horizontally disposed, the two extending plates 142 extend along a vertical direction, the extending plates 142 are perpendicular to the handle plate 141, each extending plate 142 is provided with at least two positioning slots 143, the positioning slots 143 are located on an outer wall of the extending plate 142 and are arranged in a slot, the at least two positioning slots 143 are distributed along the vertical direction, the two extending plates 142 are respectively provided with a sliding slot 144, and the sliding slots 144 extend along the vertical direction.

The upper end of the casing in the vertical direction is provided with two through grooves 26 in a penetrating manner, the through grooves 26 extend in the vertical direction, the two through grooves 26 are respectively positioned at two sides of the horizontal direction, the handle plate 141 is positioned at the outer side of the casing, and the extending plate 142 penetrates through the through grooves 26 and can move in the vertical direction. Screens 18 is the crooked formation of strip spare, and the stiff end 182 of screens 18 is the setting of convoluteing, and the elasticity free end 181 of screens 18 is the strip setting, and the casing is provided with constant head tank 183, and the elasticity free end 181 of screens 18 passes constant head tank 183, and the stiff end 182 of screens 18 is fixed to be set up on drain pan 2, and the elasticity free end 181 and the detachable block of a locator card groove 143 of screens 18.

The positioning member 13 includes a cross rod 131 extending along the horizontal direction and a vertical rod 132 extending along the vertical direction, the vertical rod 132 is connected to the cross rod 131 at the middle portion, the two end portions of the cross rod 131 in the horizontal direction are respectively provided with a positioning column 133, the bottom case 2 is provided with a transverse limiting groove 271 extending along the horizontal direction, the cross rod 131 is located in the transverse limiting groove 271, and the positioning column 133 is located in the sliding groove 144 and is in clearance fit with the sliding groove 144. The bottom case 2 is provided with a vertical limiting groove 272 extending along the vertical direction, the vertical rod 132 is located in the vertical limiting groove 272, the cover plate 17 covers the horizontal limiting groove 271 and is fixedly connected with the bottom case 2, and the cover plate 17 and the horizontal limiting groove 271 limit the horizontal rod 131 and the vertical rod 132.

The weighing component comprises a weighing sensor 12 and a scale hook 11, wherein the weighing sensor 12 is positioned in the casing, the scale hook 11 is positioned outside the casing and positioned on the lower side of the casing in the vertical direction, and the weighing sensor 12 is connected between the lower end of the vertical rod 132 and the scale hook 11. The battery 16 is arranged inside the bottom shell 2, the battery 16 being located between the two access panels 142, the crossbar 131 and the handle panel 141.

The bottom case 2 is provided with L-shaped curing members 192 at two sides below the vertical direction, the L-shaped curing members 192 are fixedly provided with magnetic members 191, the magnetic members 191 are positioned in the casing, and the scale hook 11 can be attracted by the magnetic members 191 to realize the relative fixation of the positions.

When the handle 14 is pulled out upward, the elastic free end 181 of the locking member 18 engages with the positioning slot 143 located on the lower side, and when the handle 14 is retracted downward, the extending plate 142 is accommodated in the bottom case 2, and the elastic free end 181 of the locking member 18 engages with the positioning slot 143 located on the upper side.

Of course, the above-mentioned embodiments are just the preferred embodiments of the present invention, and there are many variations in practical applications, for example, for the elastic return of the opening and closing member and the driving member, other spring structures such as a torsion spring or a tension spring may be adopted, and the first end of the second elastic member 343 is adjacent to the housing, and the second end of the second elastic member 343 is adjacent to the opening and closing member 35 or the driving member 34, which can also return the opening and closing member and the driving member. To the structural principle of handle spare and screens piece in addition, except adopting above-mentioned paper storehouse to cover and set up the rubber roll, set up the rubber roll on the casing of handheld electronic scale printer, the paper storehouse covers and sets up the heat-sensitive piece, and the utility model of handle spare and screens piece conceives equally suitable, all is in the middle of the protection scope of the utility model.

From top to bottom, axial end location to the rubber roll through mounting groove and locked groove, the rubber roll can rotate steadily then realizes stabilizing the paper feed, and through spout and the handle hole of setting in the front side, the inclined plane cooperation of lid piece and driving piece is opened in the cooperation, press the lid piece at the printer towards user's front side, order about the removal of driving piece, then realize the removal of drive latch fitting and locked groove, relieve the locking to axial tip in proper order, thereby uncap smoothly, because set up terminal surface in the front and utilize the drive division to adjoin with the connecting plate that is located the middle part, not only convenient operation, and the drive power of drive division is exerted the locking arm of average transmission to both sides behind the connecting plate, and the locked groove of both sides, improve and uncap and feel, thereby avoid the uneven scheduling problem of uncapping of lateral part uncapping atre.

In addition, through setting up handle spare on handheld electronic scale printer, through the board that stretches into of handle spare, and set up positioning channel section stretching into the board, stretch into to the casing after stretching into the board and passing the trough in, then the elasticity free end and the different positioning channel section block of screens piece to handle spare to different states of stretching out and drawing back is fixed a position, thereby facilitates the use. Through the cooperation of the positioning columns on the cross rods and the sliding grooves of the stretching plates, the stretching plates and the handle pieces can slide more stably. Through the fixed mounting of montant to and the location installation of apron, provide stable support for weighing sensor then. Through banding screens piece to and be located the positioning groove on the outer wall, conveniently remove and fix a position then. The magnetic part is used for attracting the scale hook, and then the relative fixation of the scale hook is realized.

Claims

1. A handheld electronic scale printer with a cover-opened front panel comprises a weighing assembly, a shell, a paper bin cover, a rubber roller and a heat-sensitive sheet, wherein the heat-sensitive sheet is arranged on the shell, the rubber roller is rotatably arranged on the paper bin cover, the shell is provided with the paper bin, the paper bin cover covers the paper bin, the paper bin cover is hinged with the shell and can be opened towards the front side, a paper outlet towards the front side is formed between the paper bin cover and the shell, the heat-sensitive sheet is opposite to the rubber roller, a paper feeding channel is formed between the heat-sensitive sheet and the rubber roller, and the paper feeding channel is communicated between the paper bin and the paper outlet;

the weighing component comprises a weighing sensor and a scale hook, the weighing sensor is positioned in the casing, the scale hook is positioned outside the casing and positioned on the lower side of the casing in the vertical direction, and the scale hook is connected with the weighing sensor;

the method is characterized in that:

the handheld electronic scale printer further comprises a cover opening component, a driving component, a locking component, a first elastic component and a second elastic component, wherein the casing is provided with a rubber roller installation position, the rubber roller is positioned in the rubber roller installation position, the casing is respectively provided with installation grooves at two axial ends of the rubber roller, one axial end of the rubber roller is positioned in one installation groove, the locking component comprises a connecting plate and locking arms arranged at two sides of the connecting plate, the locking arms are provided with locking grooves at the installation grooves, the locking grooves are provided with locking notches, the axial ends are positioned in the locking grooves, and the first elastic component is connected between the locking component and the casing;

a sliding groove is arranged in the machine shell along the vertical direction, a through hole penetrates through the bottom of the sliding groove in the vertical direction, an operation hole is communicated with the front side of the sliding groove, and the operation hole penetrates through the front end face of the machine shell;

the driving piece is provided with first cooperation inclined plane, the driving piece sets up in the spout and can follow the vertical direction removes, it is provided with second cooperation inclined plane to open the cover piece, it is movably set up to open the cover piece in the operating hole, first cooperation inclined plane with the cooperation of second cooperation inclined plane, the first end of second elastic component with the casing adjoins, the second end of second elastic component with open the cover piece or the driving piece adjoins, the drive division of driving piece passes the perforation with the connecting plate adjoins, the removal drive of driving piece the latch fitting removes.

2. The hand-held electronic scale printer of claim 1, wherein:

the hinge position between the paper bin cover and the casing is located at the lower side of the paper outlet, and the cover opening part is located at the upper side of the paper outlet.

3. The hand-held electronic scale printer of claim 1, wherein:

the handheld electronic scale printer further comprises a display screen, wherein the display screen is located on the front end face of the shell, and the display screen is located above the paper outlet.

4. The hand-held electronic scale printer of claim 1, wherein:

the casing is in the both sides of rubber roll installation position are provided with the mounting panel respectively, the mounting groove is located on the mounting panel, the latch fitting articulate in the mounting panel, the heat-sensitive piece sets up two between the mounting panel, first elastic component elasticity butt is in the heat-sensitive piece with between the connecting plate.

5. The hand-held electronic scale printer according to any one of claims 1 to 4, wherein:

the driving piece is provided with the constant head tank, first cooperation inclined plane sets up in the constant head tank, it is provided with the reference column to open the lid, second cooperation inclined plane sets up down on the reference column, the reference column is located in the constant head tank.

6. The hand-held electronic scale printer of claim 5, wherein:

the driving piece is arranged on the side portion of the positioning groove and is provided with a limiting plate, the second elastic piece is located in the sliding groove, and the second elastic piece is elastically abutted between the limiting plate and the bottom wall of the sliding groove.

7. The hand-held electronic scale printer of claim 5, wherein:

the side part of the positioning column of the cover opening part is provided with a clamping part, the side wall of the sliding groove is provided with a clamping groove, and the clamping part is clamped with the clamping groove.

8. The hand-held electronic scale printer according to any one of claims 1 to 4, wherein:

the casing includes drain pan and panel of interconnect, the latch fitting with the heat sensitive piece sets up on the drain pan, the spout, the handle hole, open the lid and the driving piece sets up on the panel.

9. The hand-held electronic scale printer of claim 8, wherein:

the handheld electronic scale printer further comprises a cutter, wherein the cutter is fixedly connected to the panel, the panel and the paper bin cover enclose the paper outlet, and the cutter is located at the paper outlet.

10. The hand-held electronic scale printer according to any one of claims 1 to 4, wherein:

the hand-held electronic scale printer further comprises a wire cover, the wire cover covers the wire groove, an inlet is formed in the position, close to the threading hole, of the wire cover, and an outlet is formed in one end, far away from the inlet, of the wire groove.