Integrated thermal printer with rotating shaft and button for uncovering

Abstract

The utility model provides an integrated rotary shaft button uncovering thermal printer, which comprises a machine cover, a machine base, a thermosensitive module, a rubber roller and an uncovering assembly, the uncovering assembly is arranged on the machine cover, the machine cover is provided with an installation position, two sliding chutes and a sliding hole, the machine cover is provided with two U-shaped positioning grooves and a rotary groove at the installation position, and the rotary shaft button is arranged in the rotary groove. The cover assembly comprises a rotating shaft, two lock columns, two springs and a button, a rotating rod part and a protruding part are formed through the rotating shaft of an integrated rod body by means of bending, the rotating rod part is used for rotating positioning, the protruding part is used for receiving cover opening driving force, and therefore movement of the button can drive the protruding part to rotate around the rotating rod part, and then the lock columns are driven to rotate. When the cover is closed and locked, locking force for clamping the hook part and the clamping groove is applied to the hook part through the spring, so that the cover is closed stably, the integrated rotating shaft is used for driving the locking columns on the two sides to rotate, the structure is simple, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of thermal printing, especially relates to a thermal printer with integrated rotary shaft button cover opening. BACKGROUND

[0002] With the popular application of thermal printers, thermal printers are used not only in automatic teller machines of banks, cash desks of supermarkets and delivery places of e-commerce, but also in the rapidly growing commercial fields such as e-commerce and express industry, and now portable thermal printers are gradually widely used in personal consumption fields.

[0003] The thermal printer is generally provided with a machine cover, a machine base, a thermal sheet and a rubber roller, printing paper is input to the rubber roller and the thermal sheet, and then an image is formed by printing, since the printing paper needs to be replaced, the machine cover of the thermal printer needs to be frequently opened, the machine cover is closed after replacement, and the thermal sheet is opposite to the rubber roller.

[0004] The cover opening and locking of the machine cover need a series of structures, not only the elastic members surrounding the locking hooks to lock the force, but also the driving of the opening button to the locking hooks and the resetting of the locking hooks, so how to simplify the design of the cover opening assembly is particularly crucial. SUMMARY

[0005] The utility model aims at providing a thermal printer with integrated rotary shaft button cover opening.

[0006] In order to realize the utility model purposes, the utility model provides a hot sensitive printer of integral type rotating shaft button uncapping, including machine cover, machine base, hot sensitive module, rubber roller and uncapping assembly, hot sensitive module sets up on the machine cover, rubber roller rotatably sets up on the machine base, the machine cover is hinged with the machine base, the machine cover and the machine base form the paper outlet between, hot sensitive module and rubber roller are opposite and form the paper path channel, the paper path channel is continuous with the paper outlet, uncapping assembly sets up on the machine cover, the machine cover is provided with installation site, two sliding grooves and slide hole, installation site is located at the back of hot sensitive module, sliding groove extends along the paper length direction and is through setting along the vertical direction, the machine cover is provided with two U type positioning grooves and rotating groove along the paper width direction in installation site, rotating groove is located between two U type positioning grooves, two sliding grooves are located respectively on the both sides of installation site based on the paper width direction, slide hole is through setting along the paper length direction and is located at the front side of rotating groove based on the paper length direction, uncapping assembly includes rotating shaft, two lock columns, two springs and button, rotating shaft is integral type rod body, rotating shaft includes two rotating lever parts and convex part, convex part is connected between two rotating lever parts, convex part is arranged outwardly based on rotating lever part, one rotating lever part is installed in one U type positioning groove with clearance fit, U type positioning groove is provided with cover, convex part is located in rotating groove, button is movably installed in slide hole along the paper length direction, the inner end of button is adjacent to convex part, the movement of button can drive convex part to rotate around rotating lever part, the machine base is provided with clamping groove respectively on both ends of rubber roller based on the paper width direction, one lock column is drivingly connected with the end of one rotating lever part, the lower end of lock column is provided with hook part, one spring is connected between one lock column and machine cover, lock column passes through sliding groove and is detachably clamped with clamping groove, spring applies the locking force that clamping groove is clamped with hook part.

[0007] Further, the bottom surface of the cover is provided with a limiting protrusion, the limiting protrusion is located in the U-shaped positioning groove and is adjacent to the rotating lever part.

[0008] Further, the rotating lever part and the convex part extend along the paper width direction respectively, the convex part is not collinear with the rotating lever part, and the convex part is connected with the rotating lever part through a bending part.

[0009] Further, the outer periphery of the outer end of the button is provided with a positioning step, the outer end of the button passes through the slide hole, and the positioning step is adjacent to the inner wall of the slide hole.

[0010] Further, the machine cover comprises a bottom cover and a face cover, the installation site and the two sliding grooves are arranged on the bottom cover, and the slide hole is arranged on the face cover.

[0011] Further, the bottom wall of the face cover is provided with a supporting column, the lower end of the supporting column is located above the cover and is adjacent to the cover.

[0012] Further, the spring extends along the paper length direction, and the spring is connected between the bottom cover and the lock column.

[0013] The utility model discloses beneficial effect is, through the pivot of integral type pole body, utilize the curved formation pivot and convex part, pivot is used for rotating positioning, and convex part is used for receiving uncapping driving force, so the movement of button can drive convex part rotates around pivot, in turn drive the rotation of lock post, in turn realize the separation of hook portion and card slot and uncapping, and when locking, then through the spring to hook portion applies and the locking force of card slot card, makes the stable cover of machine cover, the case drives the rotation of both sides lock post through integral pivot, not only simple structure, and be favorable to reducing cost, furthermore, through the limiting lug of sealing cover can limit pivot, make convex part and lock stable rotation, again cooperate the support column arrangement of surface cover, make the end surface of surface cover get corresponding support, avoid the recess of this position. In addition, through the spring of paper length direction arrangement, in turn spring can provide stable locking force for lock post. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure diagram of the utility model thermal printer embodiment.

[0015] Figure 2 It is the structure diagram of the utility model thermal printer embodiment after opening machine cover.

[0016] Figure 3 It is the structure diagram of the utility model thermal printer embodiment after opening machine cover.

[0017] Figure 4 It is the structure diagram of the utility model thermal printer embodiment after opening machine cover.

[0018] Figure 5 It is the structure diagram of the utility model thermal printer embodiment after opening machine cover.

[0019] The utility model will be further described below in connection with the drawings and embodiment. DETAILED DESCRIPTION

[0020] Referring to Figures 1 to 5 , thermal printer includes machine cover 2, machine base 1, thermal module 225, rubber roller 111 and uncapping assembly, thermal module 225 sets up on machine cover 2, thermal module 225 includes thermal support and the thermal sheet of setting on thermal support, rubber roller 111 rotatably sets up on machine base 1, machine cover 2 is hinged with machine base 1 through hinged column 226, and the paper outlet 222 of forming between machine cover 2 and machine base 1 is towards the front side of paper length direction, and thermal module 225 and rubber roller 111 are opposite and form paper path, and paper path is communicated with paper outlet 222.

[0021] The uncovering assembly is arranged on the cover 2, the cover 2 comprises a bottom cover 211 and a surface cover 221, the bottom cover 211 is arranged with a mounting position 213, two sliding grooves 212 and a sliding hole 222, the mounting position 213 is located at the back side of a heat-sensitive module 225, the heat-sensitive module 225 is arranged at the bottom side of the bottom cover 211, the sliding grooves 212 extend along the paper length direction X and are arranged through in the vertical direction, the bottom cover 211 is arranged with two U-shaped positioning grooves 215 and a rotating groove 214 along the paper width direction Y at the mounting position 213, the rotating groove 214 is located between the two U-shaped positioning grooves 215, the two sliding grooves 212 are respectively located at the two sides of the mounting position 213 based on the paper width direction Y, the sliding hole 222 is arranged on the surface cover 221, the surface cover 221 is arranged above the bottom cover 211 in a covering manner, the sliding hole 222 is arranged through along the paper length direction X and is located at the front side of the rotating groove 214 based on the paper length direction X. The upper surface of the surface cover 221 is arranged with a button 223.

[0022] The uncovering assembly comprises a rotating shaft 24, two lock columns 25, two springs 26 and the button 23, the rotating shaft 24 is an integrated rod body, the rotating shaft 24 comprises two rotating rod portions 242 and a protruding portion 241, the protruding portion 241 is connected between the two rotating rod portions 242, the protruding portion 241 is arranged outwardly protruding based on the rotating rod portion 242, the rotating rod portion 242 and the protruding portion 241 respectively extend along the paper width direction Y, the protruding portion 241 is not collinear with the rotating rod portion 242, and the protruding portion 241 and the rotating rod portion 242 are connected through a bending portion.

[0023] One rotating rod portion 242 is arranged in gap fit in one U-shaped positioning groove 215, each side U-shaped positioning groove 215 is arranged with a cover 27, the bottom surface of the cover 27 is arranged with a limiting protruding block 271, the limiting protruding block 271 is located in the U-shaped positioning groove 215 and is adjacent to the rotating rod portion 242. The bottom wall of the surface cover 221 is arranged with a supporting column 224, the lower end portion of the supporting column 224 is located above the cover 27 and is adjacent to the cover 27.

[0024] The protruding portion 241 is rotatably arranged in the rotating groove 214, the button 23 is movably arranged in the sliding hole 222 along the paper length direction X, the inner end 231 of the button 23 is adjacent to the protruding portion 241, the outer end 232 of the button 23 is used for hand pressing driving, the outer periphery of the outer end 232 of the button 23 is arranged with a positioning step 233, the outer end of the button 23 passes through the sliding hole 222, the positioning step 233 is adjacent to the inner wall of the sliding hole 222, thereby avoiding the outward disengagement of the button 23, through pressing the button 23, the movement of the button 23 can drive the protruding portion 241 to rotate around the rotating rod portion 242.

[0025] The base 1 is arranged with a clamping groove 112 at each end of the rubber roller 111 based on the paper width direction Y, one lock column 25 is drivingly connected with the end portion of one rotating rod portion 242, the lower end portion of the lock column 25 is arranged with a hook portion 251, the spring 26 extends along the paper length direction X, and one spring 26 is connected between the bottom cover 211 and one lock column 25.

[0026] When the cover 2 is closed, the lock post 25 passes through the sliding slot 212 and the clamping slot 112, the hook portion 251 is clamped with the clamping slot 112, and the spring 26 applies a locking force to the hook portion 251 to clamp with the clamping slot 112. When it is needed to open the cover 2, the button 23 is pressed, the movement of the button 23 can drive the convex portion 241 to rotate around the rotating rod portion 242, the rotating rod portion 242 is also rotated to drive the lock post 25 to rotate, and then the hook portion 251 is separated from the clamping slot 112, so that the cover 2 can be smoothly opened.

[0027] As can be seen from the above, the rotating shaft in the form of an integral rod body is used, the rotating rod portion and the convex portion are formed by bending, the rotating rod portion is used for rotating positioning, and the convex portion is used for receiving the opening cover driving force, so that the movement of the button can drive the convex portion to rotate around the rotating rod portion, then drive the lock post to rotate, then realize the separation of the hook portion and the clamping slot and the opening of the cover, and when it is closed and locked, the spring applies a locking force to the hook portion to clamp with the clamping slot, so that the cover is stably closed. The integral rotating shaft is used to drive the rotation of the lock posts on both sides, which not only has a simple structure, but also is conducive to reducing the cost.

Claims

1. A thermal printer with a rotary shaft button cover opening device, comprising a cover, a base, a thermal module, a rubber roller and a cover opening device, the thermal module is arranged on the cover, the rubber roller is rotatably arranged on the base, the cover is hinged to the base, a paper outlet is formed between the cover and the base, the thermal module and the rubber roller are opposite and form a paper passing channel, the paper passing channel is communicated with the paper outlet; characterized in that: the cover opening device is arranged on the cover, the cover is provided with a mounting position, two sliding grooves and a sliding hole, the mounting position is located at the back side of the thermal module, the sliding grooves extend along the paper length direction and are arranged through in the vertical direction, the cover is provided with two U-shaped positioning grooves and a rotating groove along the paper width direction at the mounting position, the rotating groove is located between the two U-shaped positioning grooves, the two sliding grooves are respectively located on the two sides of the mounting position based on the paper width direction, and the sliding hole is arranged through in the paper length direction and located at the front side of the rotating groove based on the paper length direction; the cover opening device comprises a rotary shaft, two locking columns, two springs and a button, the rotary shaft is an integrated rod body, the rotary shaft comprises two rotary rod portions and a protruding portion, the protruding portion is connected between the two rotary rod portions, the protruding portion is arranged outwardly based on the rotary rod portions, one rotary rod portion is gap-fittedly mounted in one U-shaped positioning groove, a cover is arranged on the U-shaped positioning groove, the protruding portion is located in the rotating groove, the button is movably mounted in the sliding hole along the paper length direction, the inner end of the button is adjacent to the protruding portion, and the movement of the button can drive the protruding portion to rotate around the rotary rod portion; the base is provided with a clamping groove at each end of the rubber roller based on the paper width direction, the end of one locking column is drivingly connected with one rotary rod portion, the lower end of the locking column is provided with a hook portion, one spring is connected between one locking column and the cover, the locking column passes through the sliding groove, the hook portion is separably clamped with the clamping groove, and the spring applies a locking force to the hook portion for clamping with the clamping groove. 2.The thermal printer according to claim 1, characterized in that: a limiting protrusion is arranged on the bottom surface of the cover, the limiting protrusion is located in the U-shaped positioning groove and adjacent to the rotary rod portion. 3.The thermal printer according to claim 1, characterized in that: the rotary rod portion and the protruding portion respectively extend along the paper width direction, the protruding portion is not collinear with the rotary rod portion, and the protruding portion is connected with the rotary rod portion through a bending portion. 4.The thermal printer according to claim 1, characterized in that: a positioning step is arranged on the outer periphery of the outer end of the button, the outer end of the button passes through the sliding hole, and the positioning step is adjacent to the inner wall of the sliding hole. 5.The thermal printer according to any one of claims 1 to 4, characterized in that: the cover comprises a bottom cover and a surface cover, the mounting position and the two sliding grooves are arranged on the bottom cover, the sliding hole is arranged on the surface cover, and the surface cover is arranged above the bottom cover in a covering manner.

6. The thermal printer according to claim 5, characterized in that: a bottom wall of the face cover is provided with a support column, a lower end of the support column is located above and abuts the cover.

7. The thermal printer according to claim 5, characterized in that: the spring extends in the paper length direction, and the spring is connected between the bottom cover and the lock column.

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