Printer

Abstract

A printer structurally comprises a fixed shell (1) and a rotating shell (2), a rotating arm (3) is arranged on the rotating shell (2), one end of the rotating arm (3) is connected with the rotating shell (2), and the other end of the rotating arm (3) is rotatably connected with the fixed shell (1) through a rotating shaft (4). The rotating shell (2) rotates relative to the rotating shaft (4) through the rotating arm (3) to achieve opening and closing relative to the fixed shell (1), and after the rotating shell (2) is opened, the opening and closing angle between the rotating shell (2) and the fixed shell (1) is larger than 90 degrees. According to the scheme, the uncovering device has the advantages that uncovering at a larger angle can be achieved, a larger operation space is provided, and therefore paper loading is easier.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal printer, in particular to a printer capable of realizing over 90o flip opening. BACKGROUND

[0002] The thermal printer is a small and portable printing device, wherein the opening and closing cover type thermal printer is filled with printing paper in the shell, and the printing paper is taken and installed by the opening and closing of the cover; at present, the opening and closing cover type printer is generally opened at an angle of about 90 degrees after opening the cover, the opening angle is small, and since it is a small printer, the paper roll therein is also small, which leads to the technical problem that the installation operation space of the paper roll is small and it is not easy to install the paper. CONTENT OF THE UTILITY MODEL

[0003] The present application aims at the above-mentioned deficiencies of the prior art, and provides a printer capable of realizing larger opening angle, providing larger operation space and thus making it easier to install the paper.

[0004] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows: a printer, the structure of which comprises a fixed shell and a rotating shell, wherein the rotating shell is provided with a rotating arm, one end of the rotating arm is connected with the rotating shell, and the other end is rotatably connected with the fixed shell through a rotating shaft, the rotating shell is rotated relative to the rotating shaft through the rotating arm to realize the opening and closing relative to the fixed shell, and the opening and closing angle between the rotating shell and the fixed shell after opening is greater than 90 degrees.

[0005] By adopting the above structure, the present application sets a rotating arm between the rotating shell and the fixed shell, which can drive the rotating shell to rotate relative to the fixed shell to realize the opening and closing action, and the opening and closing angle between the rotating shell and the fixed shell after opening can be greater than 90 degrees, thereby expanding the opening and closing angle and the operation space of the printing paper roll, which is more conducive to the taking and installation of the printing paper roll compared with the traditional 90-degree opening and closing angle.

[0006] Further, the rotating arm comprises a first arm portion and a second arm portion connected in sequence, and an included angle is formed between the first arm portion and the second arm portion on one side of the rotating shell, and the angle of the included angle is less than 90 degrees; by adopting this structure, the opening angle after the rotating arm drives the rotating shell to open relative to the fixed shell can be greater than 90 degrees, thereby providing larger operation space for the assembly of the printing paper roll.

[0007] Further, one end of the first arm part is connected perpendicularly to the rotating shell, and the second arm part extends obliquely along the tail end of the first arm part; with this structure, the rotating shell can be more closely fitted during the closing process with the fixed shell cover, the rotating arm does not affect the closing action, and the rotating space occupied by the rotating arm is relatively smaller.

[0008] Further, a torsion spring is arranged between the rotating arm and the rotating shaft, and the torsion spring is used to drive the rotating shell to move relative to the fixed shell; with this structure, when the closing force between the rotating shell and the fixed shell is released, the elastic force of the torsion spring can drive the rotating shell to open directly, thereby realizing the opening action.

[0009] Further, the rotating arm and the rotating shell are integrally formed; that is, they do not need to be separately prepared and then assembled through a connecting structure, but are integrally formed during preparation, such as injection molding, thereby improving the connection firmness between the two and ensuring the strength of the rotating arm during use.

[0010] Further, a magnetic attraction structure is arranged between the rotating shell and the fixed shell, and the magnetic attraction structure is used to enable the rotating shell to be attracted and closed with the fixed shell after being closed; that is, with this magnetic attraction structure, a complex buckling structure does not need to be arranged, and the opening is also more convenient and easy to operate.

[0011] Further, the magnetic attraction structure is an electromagnetic attraction structure or a magnet attraction structure.

[0012] Further, the magnet attraction structure specifically comprises that a first magnet is arranged on the rotating shell, a second magnet is arranged on the fixed shell, the positions of the first magnet and the second magnet correspond to each other, and the first magnet and the second magnet can be attracted to each other; with this structure, it is more convenient to arrange in the device, and the magnetic attraction effect is good, thereby ensuring the stability of the closing of the rotating shell and the fixed shell.

[0013] Further, the first magnet is provided with two pieces, the two pieces of the first magnet are arranged along the length direction of the closing side of the rotating shell and are located on the side of the rotating shell away from the fixed shell; correspondingly, the second magnet is provided with two pieces, the two pieces of the second magnet are arranged along the length direction of the closing side of the fixed shell and are located on the side of the fixed shell away from the rotating shell; with this structure, the magnetic attraction closing between the rotating shell and the fixed shell can be realized, the closing force can be improved through the attraction of the two points, and the magnets are located on the back of the fixed shell and the rotating shell, that is, the two groups of magnets do not directly contact and are not exposed.

[0014] Further, the rotating shell comprises a rotating cover and an upper shell located outside the rotating cover, a buckle is arranged on the outer periphery of the rotating cover, a corresponding buckle is arranged on the inner wall of the upper shell, and the buckle is buckled in the buckle; the fixed shell comprises a middle shell and a lower shell located outside the middle shell, and the middle shell and the lower shell are inserted and matched; by arranging the upper shell and the lower shell, the rotating cover and the middle cover are arranged therein, protection is achieved, and magnets and other structures can be hidden in the shell, keeping the external neatness. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure schematic diagram of the printer of the present application.

[0016] Figure 2 The structure schematic diagram of the printer of the present application.

[0017] Figure 3 The structure schematic diagram of the first view of the large-angle flip cover printer of the present application after the rotating cover and the middle shell are combined (front view).

[0018] Figure 4 The structure schematic diagram of the second view of the large-angle flip cover printer of the present application after the rotating cover and the middle shell are combined (back view).

[0019] Figure 5 The structure schematic diagram of the rotating cover of the present application.

[0020] Figure 6 The structure schematic diagram of the large-angle flip cover printer of the present application.

[0021] As shown in the drawings: 1. fixed shell, 101. middle shell, 102. lower shell, 2. rotating shell, 201. rotating cover, 202. upper shell, 203. buckle, 204. buckle, 3. rotating arm, 301. first arm part, 302. second arm part, 4. rotating shaft, 5. torsional spring, 6. first magnet, 7. second magnet, 8. paper roll. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the embodiments and the drawings. Obviously, the described embodiments are only preferred embodiments, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application;

[0023] It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. The use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be equivalent to the term "consisting of" to mean the inclusion of an item or items, but not the exclusion of any additional item or items. It is understood that where the description states that a component, feature, structure, or characteristic "may", "might", or "could" be, include, or comprise something, that it can but not necessarily do, include, or comprise such thing.

[0024] As shown in the accompanying drawings, the printer of the present application comprises a fixed shell 1 and a rotating shell 2, wherein the rotating shell 2 is provided with a rotating arm 3, one end of the rotating arm 3 is connected with the rotating shell 2, and the other end is rotatably connected with the fixed shell 1 through a rotating shaft 4, the rotating shell 2 is rotated relative to the rotating shaft 4 through the rotating arm 3 to realize the opening and closing relative to the fixed shell, and the opening and closing angle between the rotating shell 2 and the fixed shell 1 is greater than 90 degrees after being opened. Figures 1-6 As shown in the accompanying drawings, the printer of the present application comprises a fixed shell 1 and a rotating shell 2, wherein the rotating shell 2 is provided with a rotating arm 3, one end of the rotating arm 3 is connected with the rotating shell 2, and the other end is rotatably connected with the fixed shell 1 through a rotating shaft 4, the rotating shell 2 is rotated relative to the rotating shaft 4 through the rotating arm 3 to realize the opening and closing relative to the fixed shell, and the opening and closing angle between the rotating shell 2 and the fixed shell 1 is greater than 90 degrees after being opened.

[0025] With the above structure, the rotating arm between the rotating shell and the fixed shell can drive the rotating shell to rotate relative to the fixed shell to realize the opening and closing action, and the opening and closing angle between the rotating shell and the fixed shell is greater than 90 degrees after being opened, so as to expand the opening and closing angle and the operation space of the printing paper, which is more convenient for taking and installing the printing paper compared with the traditional 90-degree opening and closing angle.

[0026] As shown in the accompanying drawings, the printer of the present application comprises a fixed shell 1 and a rotating shell 2, wherein the rotating shell 2 is provided with a rotating arm 3, one end of the rotating arm 3 is connected with the rotating shell 2, and the other end is rotatably connected with the fixed shell 1 through a rotating shaft 4, the rotating shell 2 is rotated relative to the rotating shaft 4 through the rotating arm 3 to realize the opening and closing relative to the fixed shell, and the opening and closing angle between the rotating shell 2 and the fixed shell 1 is greater than 90 degrees after being opened. Figures 1-6As shown in the figure, the rotating arm 3 of this application includes a first arm 301 and a second arm 302 connected in sequence. The first arm 301 and the second arm 302 form an included angle on the side of the rotating housing 2, and the included angle is less than 90 degrees. With this structure, after the rotating arm drives the rotating housing to open relative to the fixed housing, the angle after opening can be more than 90 degrees, providing more operating space for the assembly of the printing roll. Specifically, as shown in the figure, the rotating arm composed of the first arm and the second arm of this application can be a sickle-shaped structure. As an example, when the opening angle after opening the cover is 120 degrees, the included angle between the first arm and the second arm can be 60 degrees. This angle setting can make the rotating arm occupy less space.

[0027] As attached Figure 2 As shown, as an example, one end of the first arm 301 described in this application is perpendicularly connected to the rotating housing 2 (the two are connected at a right angle, and the first arm extends perpendicularly outward along the inner surface of the rotating cover), and the second arm 302 extends obliquely along the tail end of the first arm 301 (obliquely towards the direction of the first arm). With this structure, the rotating housing can fit more tightly with the fixed housing during the closing process (the perpendicular connection makes the inner surface of the rotating housing fit more closely with the inner surface of the fixed housing after flipping and closing), the rotating arm does not affect the closing action, and the rotation space occupied by the rotating arm is relatively smaller.

[0028] As attached Figures 1-6 As shown, a torsion spring 5 is provided between the rotating arm 3 and the rotating shaft 4, and the torsion spring 5 is used to drive the rotating housing 2 to move relative to the fixed housing 1. With this structure, when the closing force binding the rotating cover and the fixed housing is released, the elastic force of the torsion spring can drive the rotating housing to spring open directly relative to the fixed housing, realizing the opening action. For details, please refer to the appendix. Figure 5 The torsion spring of this application includes a helical part and sleeved parts at both ends. The helical part is sleeved on the rotating shaft, the sleeved part at one end is sleeved on the protrusion in the middle of the rotating arm, and the sleeved part at the other end abuts against the fixed housing. A accommodating cavity for the rotating arm is formed on the fixed housing. After installation, the two vertically extending parts of the torsion spring abut against the inner bottom surface of the accommodating cavity. The torsion spring and the accommodating cavity of this application can be set at the center along the length direction of the rotating cover and the fixed housing, so as to give the rotating cover a balanced spring-opening force.

[0029] As an example, see attached Figures 5-6As shown in the drawings, the rotating arm 3 and the rotating shell 2 are integrally formed, i.e. they are not separately prepared and assembled through a connecting structure, but integrally formed through injection molding during the preparation, such as injection molding, thereby improving the connection firmness between the two and ensuring the strength of the rotating arm during use.

[0030] As an example, as shown in the drawings, Figure 4 As shown in the drawings, the rotating shell 2 and the fixed shell 1 are provided with a magnetic attraction structure, which is used to attract each other after the rotating shell 2 is closed.

[0031] As an example, the magnetic attraction structure can be an electromagnetic attraction structure or a magnet attraction structure.

[0032] As shown in the drawings, Figure 4 As an example, the magnet attraction structure specifically comprises that the rotating shell 2 is provided with a first magnet 6, the fixed shell 1 is provided with a second magnet 7, the positions of the first magnet 6 and the second magnet 7 correspond to each other (i.e. the positions of the first magnet and the second magnet are aligned after the rotating shell and the fixed shell are closed, thereby realizing mutual attraction), and the first magnet 6 and the second magnet 7 can attract each other. With this structure, it is more convenient to set in the device, and has good magnetic attraction effect, thereby ensuring the stability of the rotating cover and the fixed shell.

[0033] As shown in the drawings, Figure 4 As an example, the first magnet 6 is provided with two pieces, the two first magnets 6 are arranged along the length direction of the closing side of the rotating shell 2 (arranged at the positions close to both ends in the length direction), and located on the side of the rotating shell 2 away from the fixed shell 1 (the opposite side of the closing surface). Correspondingly, the second magnet 7 is provided with two pieces, the two second magnets 7 are arranged along the length direction of the closing side of the fixed shell 1 (arranged at the positions close to both ends in the length direction), and located on the side of the fixed shell 1 away from the rotating shell 2 (the opposite side of the closing surface). With this structure, the rotating shell and the fixed shell can be magnetically attracted and closed, and the closing force can be improved through the attraction of two points.

[0034] As shown in the drawings, Figure 1 , 6As shown, the rotating shell 2 described in the application comprises a rotating cover 201 and an upper shell 202 located outside the rotating cover 201, a buckle 203 is arranged on the outer periphery of the rotating cover 201, and a corresponding buckle hole 204 is arranged on the inner wall of the upper shell 202, and the buckle 203 is buckled in the buckle hole 204; the fixed shell 1 comprises a middle shell 101 and a lower shell 102 located outside the middle shell 101, and the middle shell 101 and the lower shell 102 are inserted and matched (specifically, an insertion column and an insertion hole can be arranged on the inner surface of the lower shell and the back surface of the middle shell, and the two are inserted and connected); by using the above structure, the rotating cover and the middle shell are arranged in the upper and lower shells, which plays a protective role, and the magnet and other structures can be hidden in the shell to maintain the neatness of the outside; specifically, it needs to be further explained that the first magnet 6 of the application is arranged on the back surface of the rotating cover 201, that is, the surface close to the upper shell 202 side, which is hidden inside by the buckling between the upper shell 202 and the rotating cover 201 without being exposed; the second magnet 7 of the application is arranged on the back surface of the middle shell 101, that is, the surface close to the lower shell 102 side, which is hidden inside by the insertion and matching between the lower shell 102 and the middle shell 101 without being exposed.

[0035] The printer described above can realize large-angle opening of more than 90°, and its specific working principle and process are as follows: according to the technical scheme described above, the printer is assembled, the upper shell is pressed to gradually approach the lower shell, the first magnet and the second magnet realize adsorption to realize the adsorption of the rotating cover and the middle shell; a containing groove for containing the printed paper 8 can be arranged on the middle shell, and the paper is placed in the containing groove; when it needs to be opened, the rotating cover can be turned away from the middle shell by overcoming the magnetic adsorption force with the hand, at this time the torsional spring can be automatically opened to realize the opening of the cover, since the rotating arm structure similar to a sickle type (the included angle of the two arms is less than 90 degrees) is adopted, the rotating cover can realize an opening angle of more than 90 degrees relative to the middle shell (driving the upper shell to realize an opening angle of more than 90 degrees at the same time) after the cover is opened, at this time the printed paper can be given a larger operation space, so that the paper changing operation is more convenient; therefore, the scheme of the application can realize the opening of more than 90 degrees, which is convenient for paper loading; in addition, the cover is closed by magnetic attraction, which is simple and convenient.

Claims

1. A printer characterized by: The structure comprises a fixed shell (1), a rotating shell (2), the rotating shell (2) is provided with a rotating arm (3), one end of the rotating arm (3) is connected with the rotating shell (2), the other end is rotatably connected with the fixed shell (1) through a rotating shaft (4), the rotating shell (2) is rotatable relative to the rotating shaft (4) through the rotating arm (3) to realize opening and closing relative to the fixed shell (1), and the opening and closing angle between the rotating shell (2) and the fixed shell (1) is greater than 90 degrees after opening; the rotating arm (3) comprises a first arm portion (301) and a second arm portion (302) connected in sequence, an included angle is formed between the first arm portion (301) and the second arm portion (302) on one side of the rotating shell (2), and the angle of the included angle is less than 90 degrees.

2. The printer of claim 1, wherein: One end of the first arm portion (301) is connected with the rotating shell (2) perpendicularly, and the second arm portion (302) extends obliquely along the tail end of the first arm portion (301).

3. The printer of claim 1, wherein: A torsional spring (5) is arranged between the rotating arm (3) and the rotating shaft (4), and the torsional spring (5) is used to drive the rotating shell (2) to move relative to the fixed shell (1).

4. The printer of claim 1, wherein: The rotating arm (3) and the rotating shell (2) are integrally formed.

5. The printer of claim 1, wherein: A magnetic attraction structure is arranged between the rotating shell (2) and the fixed shell (1), and the magnetic attraction structure is used to attract and close the rotating shell (2) and the fixed shell (1) after closing.

6. The printer of claim 5, wherein: The magnetic attraction structure is an electromagnetic attraction structure or a magnet attraction structure.

7. The printer of claim 6, wherein: The magnet attraction structure specifically comprises that a first magnet (6) is arranged on the rotating shell (2), a second magnet (7) is arranged on the fixed shell (1), the positions of the first magnet (6) and the second magnet (7) correspond to each other, and the first magnet (6) and the second magnet (7) can be attracted to each other.

8. The printer of claim 7, wherein: The first magnet (6) is provided with two pieces, the two pieces of the first magnet (6) are arranged along the length direction of the closing side of the rotating shell (2), and are located on the side of the rotating shell (2) away from the fixed shell (1); correspondingly, the second magnet (7) is provided with two pieces, the two pieces of the second magnet (7) are arranged along the length direction of the closing side of the fixed shell (1), and are located on the side of the fixed shell (1) away from the rotating shell (2).

9. The printer of claim 7, wherein: The rotating shell (2) comprises a rotating cover (201) and an upper shell (202) located outside the rotating cover (201), a buckle (203) is arranged on the outer periphery of the rotating cover (201), and a corresponding card mouth (204) is arranged on the inner wall of the upper shell (202), and the buckle (203) is buckled in the card mouth (204); The fixed shell (1) comprises a middle shell (101) and a lower shell (102) located outside the middle shell (101), and the middle shell (101) and the lower shell (102) are inserted and matched.

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