CN213973237U

CN213973237U - Thermal printer with rubber roller easy to disassemble

Info

Publication number: CN213973237U
Application number: CN202022652993.4U
Authority: CN
Inventors: 罗磊; 申小丹
Original assignee: Zhuhai Xinye Electronic Technology Co Ltd; Zhuhai Hengsheng Barcode Equipment Co Ltd
Current assignee: Zhuhai Xinye Electronic Technology Co Ltd; Zhuhai Hengsheng Barcode Equipment Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-17
Anticipated expiration: 2030-11-16

Abstract

The utility model relates to a printer technical field discloses a quick detachable thermal printer of rubber roll, including the printer main part, the rubber roll with locate the axle sleeve at rubber roll both ends, the printer main part is equipped with the rubber roll groove, fixed slot and mounting groove, the rubber roll is located in the rubber roll groove, the axle sleeve is located the fixed slot, the circumference of fixed slot is equipped with a shrink opening, the side of axle sleeve is equipped with dodges plane and location cambered surface, location cambered surface contact fixed slot inner wall, the lateral wall of axle sleeve is equipped with the location strip, the location strip is located the mounting groove, one side of location strip is equipped with the projection, the lateral wall of mounting groove is equipped with the recess, the projection is inserted and is located the recess, the location strip is equipped with the handle, the handle protrusion is in the location strip. When the rubber roll needs to be disassembled, the handle on the shaft sleeve can be shifted to enable the convex column on the positioning strip to be separated from the groove, then the shaft sleeve is rotated through the handle, the avoiding plane is rotated to pass through the contraction opening, the shaft sleeve and the rubber roll can be disassembled together from the fixing groove and the rubber roll groove at the moment, and the rubber roll is simple and convenient without the help of tools.

Description

Thermal printer with rubber roller easy to disassemble

Technical Field

The utility model relates to a printer technical field especially relates to a quick detachable thermal printer of rubber roll.

Background

Thermal printer is under long-term fast-speed printing, vulnerable parts such as rubber roll can be worn and torn, and current printer need be with the help of various instruments when dismantling the rubber roll, and some printers need dismantle earlier frame isotructure, just can dismantle the rubber roll out, and it is all very troublesome to dismantle and assemble, can not accomplish anytime and anywhere and dismantle as required, influences the continuous use of printer.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a thermal printer with a rubber roller easy to disassemble, which solves the problem that the prior rubber roller is troublesome to disassemble.

The utility model provides a technical scheme that its technical problem adopted does:

a thermosensitive printer with a rubber roller easy to detach comprises a printer body, the rubber roller and shaft sleeves sleeved at two ends of the rubber roller, wherein the printer body is provided with a rubber roller groove, the rubber roller is arranged in the rubber roller groove, two ends of the rubber roller groove are respectively provided with a fixing groove and a mounting groove, two ends of the fixing groove are respectively communicated with the rubber roller groove and the mounting groove, the shaft sleeves are positioned in the fixing grooves, a contraction opening is arranged in the circumferential direction of the fixing groove, the side surface of each shaft sleeve is provided with an avoiding plane and a positioning cambered surface, the shaft sleeves are installed in the fixing grooves in a mode that the avoiding plane penetrates through the contraction opening, the positioning cambered surfaces are in contact with the inner walls of the fixing grooves, the side walls of the shaft sleeves are provided with positioning strips, the positioning strips are positioned in the mounting grooves, one sides of the positioning strips are provided with convex columns, the side walls of the mounting grooves are provided with grooves, the convex columns are inserted in the grooves, and the positioning strips are provided with handles, the handle protrudes out of the positioning strip.

As the improvement of the technical scheme, the side wall of the mounting groove is provided with a handle avoiding groove, and part or all of the handle is positioned in the handle avoiding groove.

As the improvement of above-mentioned technical scheme, the handle includes the interlude be connected with the location strip and the handle piece be connected with the interlude, follow the radial of rubber roll is seen, interlude and location strip are in same plane, handle piece and projection protrusion respectively in interlude and location strip, the handle piece is detained and is kept away in the groove at the handle.

As an improvement of the technical scheme, the middle section and the positioning strip form an L shape when viewed from the axial direction of the rubber roller, and the middle section and the handle block form an L shape when viewed from the radial direction of the rubber roller.

As an improvement of the above technical scheme, the lateral wall of the mounting groove includes a first lateral wall and a second lateral wall which are respectively located at two sides of the fixing groove, the handle avoiding groove is formed in the first lateral wall, the first lateral wall is provided with a limiting groove, the limiting groove is located in the mounting groove, the positioning strip is located in the limiting groove, the groove is formed in the lateral wall of the limiting groove, and the handle block and the protruding column are located on the same side of the positioning strip.

As an improvement of the technical scheme, the thickness of the first side wall at the position of the limiting groove is smaller than that of the second side wall.

As an improvement of the above technical scheme, the shaft sleeve comprises a limiting ring and a shaft sleeve body connected to one end of the limiting ring, the avoiding plane, the positioning arc surface and the positioning strip are all arranged on the shaft sleeve body, the shaft sleeve body is located in the fixing groove, the limiting ring is located in the rubber roller groove, and the end face of the limiting ring contacts with the end face of the rubber roller groove.

As an improvement of the technical scheme, the avoidance planes and the positioning arc surfaces are respectively provided with two, the avoidance planes are oppositely arranged, the positioning arc surfaces are oppositely arranged, and the positioning strip is arranged on one of the positioning arc surfaces.

As an improvement of the technical scheme, the other end of the limiting ring is provided with an isolating sleeve, and the isolating sleeve is positioned in the rubber roller groove.

As an improvement of the technical scheme, the shaft sleeve is of an integrally formed structure, the shaft sleeve is provided with a shaft hole, the inner wall of the shaft hole is provided with a through groove along the radial direction, and the end part of the rubber roll is inserted into the shaft hole.

The utility model discloses wherein the beneficial effect of one side has:

according to one aspect of the disclosure, when the rubber roller in the thermal printer needs to be disassembled, the handle on the shaft sleeve can be directly stirred to enable the convex column on the positioning strip to be separated from the groove, then the shaft sleeve is rotated through the handle, the shaft sleeve rotates to the avoiding plane and can penetrate through the contraction opening, and at the moment, the shaft sleeve and the rubber roller can be disassembled from the fixing groove and the rubber roller groove together; the rubber roller is installed in the reverse order. The rubber roller of the printer can be detached without the help of tools, is simple and convenient, can greatly improve the detaching speed of the rubber roller, and meets the detaching requirement anytime and anywhere.

Drawings

The present invention will be further described with reference to the accompanying drawings and specific embodiments, wherein:

fig. 1 is a perspective view of a partial structure of one embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic perspective view of a rubber roller mounting structure according to one embodiment of the present invention;

fig. 4 is a schematic perspective view of a printer main body according to one embodiment of the present invention;

FIG. 5 is a partial enlarged view at B in FIG. 4;

fig. 6 is a perspective view of a shaft sleeve according to an embodiment of the present invention.

Detailed Description

Referring to fig. 1-5, the utility model discloses a thermal printer that rubber roll is quick detachable, locate the axle sleeve 3 at rubber roll 2 both ends including printer main part 1, rubber roll 2 and cover, in thermal printer, rubber roll 2 can install at the upper cover, also can install at the base, and in this embodiment, rubber roll 2 installs at the base, and printer main part 1 in the picture is the partial part of base.

Specifically, the printer main body 1 is provided with a rubber roller groove 4, the rubber roller 2 is arranged in the rubber roller groove 4, both ends of the rubber roller groove 4 are provided with a fixing groove 5 and a mounting groove 6, both ends of the fixing groove 5 are respectively communicated with the rubber roller groove 4 and the mounting groove 6, the shaft sleeve 3 is positioned in the fixing groove 5, the circumference of the fixing groove 5 is provided with a contraction opening 51, the contraction opening 51 is specifically arranged at the upper side of the fixing groove 5, the side surface of the shaft sleeve 3 is provided with an avoiding plane 31 and a positioning arc surface 32, the shaft sleeve 3 is arranged in the fixing groove 5 in a manner of passing through the contraction opening 51 by the avoiding plane 31, the positioning arc surface 32 contacts with the inner wall of the fixing groove 5, the side wall of the shaft sleeve 3 is provided with a positioning strip 33, the positioning strip 33 is positioned in the mounting groove 6, one side of the positioning strip 33 is provided with a convex column 34, the side wall of the mounting groove 6 is provided with a groove 61, the convex column 34 is inserted in the groove 61, the positioning strip 33 is provided with a handle 35, and the handle 35 protrudes out of the positioning strip 33.

Further, when the rubber roller 2 in the thermal printer needs to be detached, the handle 35 on the shaft sleeve 3 can be directly pulled to enable the convex column 34 on the positioning strip 33 to be separated from the groove 61, then the shaft sleeve 3 is rotated through the handle 35, the avoiding plane 31 can penetrate through the contraction opening 51 after the shaft sleeve 3 and the rubber roller 2 are rotated, and at the moment, the shaft sleeve 3 and the rubber roller 2 can be detached from the fixing groove 5 and the rubber roller groove 4 together; the order of the rubber rollers 2 is opposite to that of the rubber rollers. The rubber roller of the printer can be detached without the help of tools, is simple and convenient, can greatly improve the detaching speed of the rubber roller 2, and meets the detaching requirement anytime and anywhere.

Moreover, the side wall of the mounting groove 6 is provided with a handle escape groove 7, and the handle 35 is located in the handle escape groove 7.

Referring to fig. 6, the handle 35 includes an intermediate section 36 connected to the positioning strip 33 and a handle block 37 connected to the intermediate section 36, when viewed in a radial direction of the rubber roller 2, the intermediate section 36 and the positioning strip 33 are on the same plane, the handle block 37 and the boss 34 respectively protrude from the intermediate section 36 and the positioning strip 33, and the handle block 37 is buckled in the handle avoiding groove 7.

Specifically, the middle section 36 and the positioning strip 33 form an L-shape when viewed from the axial direction of the rubber roller 2, the middle section 36 and the handle block 37 form an L-shape when viewed from the radial direction of the rubber roller 2, and the handle block 37 and the boss 34 are located on the same side of the positioning strip 33.

Referring to fig. 3 to 5, the side wall of the mounting groove 6 includes a first side wall 63 and a second side wall 62 respectively located at two sides of the fixing groove 5, the handle avoiding groove 7 is provided at the upper end of the first side wall 63, the first side wall 63 is provided with a limit groove 64, the limit groove 64 is located in the mounting groove 6, the positioning bar 33 is located in the limit groove 64, and the groove 61 is provided at the side wall of the limit groove 64.

Moreover, the thickness of the first side wall 63 at the position of the limiting groove 64 is smaller than that of the second side wall 62. Thus, if the sleeve 3 is rotated in the fixing groove 5 in the opposite direction, the positioning bar 33 will touch the second sidewall 62 and will not rotate, so that the sleeve 3 can be prevented from being installed in the wrong direction.

Further, the shaft sleeve 3 comprises a limiting ring 39 and a shaft sleeve body 38 connected with one end of the limiting ring 39, the avoiding plane 31, the positioning arc surface 32 and the positioning strip 33 are all arranged on the shaft sleeve body 38, the shaft sleeve body 38 is located in the fixing groove 5, the limiting ring 39 is located in the rubber roller groove 4, and the end face of the limiting ring 39 contacts with the end face of the rubber roller groove 4. The limiting ring 39 is used for limiting the position of the rubber roller 2 and preventing the rubber roller 2 from axially moving. The stop collar 39 is provided with a notch 313 along the axial direction.

Specifically, the width of the avoiding plane 31 of the bushing 3 is smaller than the width of the positioning arc surface 32, so that the avoiding plane 31 can pass through the contraction opening 51 and the positioning arc surface 32 cannot pass through the contraction opening 51 during installation.

In this embodiment, the avoidance plane 31 and the positioning arc surface 32 are both provided with two, two avoidance planes 31 are arranged oppositely, two positioning arc surfaces 32 are arranged oppositely, and the positioning strip 33 is arranged on one of the positioning arc surfaces 32. The positioning arc surface 32 is an arc surface, the distance between the two avoiding planes 31 is smaller than the diameter of the positioning arc surface 32 and larger than the width of the contraction opening 51, the fixing groove 5 is an arc groove, and the diameter of the fixing groove 5 is larger than that of the positioning arc surface 32.

And, the other end of the spacing ring 39 is provided with a spacing sleeve 310, and the spacing sleeve 310 is positioned in the rubber roller groove 4. The shaft sleeve 3 is of an integrally formed structure, the shaft sleeve 3 is provided with a shaft hole 311, a through groove 312 is radially formed in the inner wall of the shaft hole 311, and the end part of the rubber roller 2 is inserted into the shaft hole 311. The design of the through groove 312 can facilitate the smooth rotation of the rubber roller 2 in the shaft hole 311.

It is noted that the terms first, second, third, etc. are used herein to describe various components or features, but these components or features are not limited by these terms. These terms are only used to distinguish one element or part from another element or part. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. For convenience of description, spatially relative terms such as "inner", "outer", "upper", "lower", "left", "right", "upper", "left", "right", and the like are used herein to describe the orientation relation of the components or parts in the present embodiment, but these spatially relative terms do not limit the orientation of the technical features in practical use.

The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments, and the technical effects of the present invention should be all included in the protection scope of the present invention as long as the technical effects are achieved by any of the same or similar means.

Claims

1. The utility model provides a quick detachable thermal printer of rubber roll which characterized in that: the automatic printing device comprises a printer body (1), a rubber roller (2) and shaft sleeves (3) sleeved at two ends of the rubber roller (2), wherein the printer body (1) is provided with a rubber roller groove (4), the rubber roller (2) is arranged in the rubber roller groove (4), two ends of the rubber roller groove (4) are respectively provided with a fixed groove (5) and a mounting groove (6), two ends of the fixed groove (5) are respectively communicated with the rubber roller groove (4) and the mounting groove (6), the shaft sleeve (3) is arranged in the fixed groove (5), a contraction opening (51) is arranged in the circumferential direction of the fixed groove (5), the side face of the shaft sleeve (3) is provided with an avoiding plane (31) and a positioning arc face (32), the shaft sleeve (3) is installed in the fixed groove (5) in a mode that the avoiding plane (31) penetrates through the contraction opening (51), the positioning arc face (32) is in contact with the inner wall of the fixed groove (5), and the side wall of the shaft sleeve (3) is provided with a positioning strip (33), location strip (33) are arranged in mounting groove (6), one side of location strip (33) is equipped with projection (34), the lateral wall of mounting groove (6) is equipped with recess (61), projection (34) are inserted and are located in recess (61), location strip (33) are equipped with handle (35), handle (35) protrusion in location strip (33).

2. The thermal printer of claim 1, wherein: the lateral wall of mounting groove (6) is equipped with handle and dodges groove (7), the part or the whole handle that is located handle and dodges groove (7).

3. The thermal printer of claim 2, wherein: handle (35) include interlude (36) be connected with location strip (33) and handle piece (37) be connected with interlude (36), follow the radial of rubber roll (2) is seen, interlude (36) and location strip (33) are in same plane, handle piece (37) and projection (34) bulge respectively in interlude (36) and location strip (33), handle piece (37) are detained and are kept away in groove (7) in the handle.

4. The thermal printer of claim 3, wherein the rubber roll is detachable from the thermal printer: the middle section (36) and the positioning strip (33) form an L shape when viewed from the axial direction of the rubber roller (2), and the middle section (36) and the handle block (37) form an L shape when viewed from the radial direction of the rubber roller (2).

5. The thermal printer of claim 3, wherein the rubber roll is detachable from the thermal printer: the lateral wall of mounting groove (6) is including first lateral wall (63) and second lateral wall (62) that are located fixed slot (5) both sides respectively, the handle dodges groove (7) and offers in first lateral wall (63), spacing groove (64) have been seted up in first lateral wall (63), spacing groove (64) are located mounting groove (6), location strip (33) are located spacing groove (64), the lateral wall of spacing groove (64) is located in recess (61), handle piece (37) and projection (34) are located same one side of location strip (33).

6. The thermal printer of claim 5, wherein: the thickness of the first side wall (63) at the position of the limiting groove (64) is smaller than that of the second side wall (62).

7. The thermal printer of claim 1, wherein: the utility model discloses a rubber roller bearing, including axle sleeve (3), shaft sleeve (39) include spacing ring (39) and connect in axle sleeve body (38) of spacing ring (39) one end, dodge plane (31), location cambered surface (32) and location strip (33) and all set up on axle sleeve body (38), axle sleeve body (38) are located fixed slot (5), spacing ring (39) are located rubber roller groove (4), the terminal surface contact rubber roller groove's (4) of spacing ring (39) terminal surface.

8. The thermal printer of claim 1 or 7, wherein: dodge plane (31) and location cambered surface (32) and all be equipped with two, two dodge plane (31) and set up relatively, two location cambered surface (32) set up relatively, one of them location cambered surface (32) are located in location strip (33).

9. The thermal printer of claim 7, wherein: the other end of the limiting ring (39) is provided with an isolating sleeve (310), and the isolating sleeve (310) is located in the rubber roller groove (4).

10. The thermal printer of claim 1, wherein: the rubber covered roller is characterized in that the shaft sleeve (3) is of an integrally formed structure, the shaft sleeve (3) is provided with a shaft hole (311), a through groove (312) is radially formed in the inner wall of the shaft hole (311), and the end portion of the rubber covered roller (2) is inserted into the shaft hole (311).