Printer cover opening structure and printer

Abstract

The utility model discloses a printer cover opening structure and a printer, belongs to the field of printing equipment, and is used for solving the problems that the operation is tedious and the appearance integrity is influenced because a screw or a button assembly is used for opening and closing a cover of an existing printer, the printer comprises a main body, a cover plate and a buckle assembly, and the cover plate is provided with a clamping shaft; the buckle assembly is arranged in the main body and comprises a fixed plate, a movable plate and a torsional spring, and when the cover plate rotates in the covering direction, the cover plate pushes the movable plate to rotate against the torsional spring until the clamping shaft rotates into the clamping groove, so that the clamping shaft is fixed between the fixed plate and the movable plate, and the cover plate covers the main body; when the cover plate rotates towards the opening direction in the closed state, the cover plate pushes the movable plate to rotate against the torsion spring until the clamping shaft is separated from the clamping groove, and at the moment, the cover plate is opened relative to the main body. According to the printer cover opening structure and the printer, the cover can be opened and closed through the rotation of the cover plate, the operation is more convenient, and the integrity and the conciseness of the appearance of a product can be improved.

Description

Technical Field

[0001] The utility model relates to the field of printing equipment, in particular to a printer cover opening structure and a printer. Background Art

[0002] The bottom cover of a thermal printer is usually assembled with the main body by screws or button assembly. When changing the printing paper or repairing the printer, the user needs to perform additional operations first, such as using tools to unscrew the screws or accurately press the button assembly to open the bottom cover to access the internal printing paper roll and printer components. This design has the following defects and shortcomings:

[0003] First, the operation is cumbersome: the process of removing the screws or pressing the button assembly is separate from the action of opening the cover, which increases the user's operation steps and time cost; second, it affects the appearance: using the button assembly as a connection method requires opening a button hole on the main body or cover, exposing the button, which will to some extent destroy the integrity and simplicity of the product appearance.

[0004] These defects not only reduce the user experience, but also increase the complexity of product design and manufacturing. It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] The utility model provides a printer cover opening structure and a printer, which at least solve the technical problem of how to simplify the opening and closing operations of the cover plate and improve the integrity of the product appearance.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A printer cover opening structure, comprising:

[0010] main body;

[0011] A cover plate, the cover plate is rotatably connected to the main body and is provided with a clamping shaft;

[0012] A buckle assembly is arranged inside the main body and includes a fixed plate, a movable plate and a torsion spring. The fixed plate is fixed inside the main body. The movable plate is rotatably connected to the fixed plate through a pin shaft and a slot for the clamping shaft to enter is formed between the movable plate and the fixed plate. The torsion spring is sleeved on the pin shaft, and one end is connected to the movable plate, and the other end is fixed to the main body or the fixed plate.

[0013] Among them, when the cover plate rotates in the closing direction, the cover plate pushes the movable plate to resist the rotation of the torsion spring until the clamping shaft rotates into the clamping slot. At this time, the torsion spring drives the movable plate to rotate to a position where the opening size of the clamping slot is smaller than the size of the clamping shaft, so that the clamping shaft is fixed between the fixed plate and the movable plate, and the cover plate is closed with the main body; when the cover plate rotates in the opening direction in the closing state, the cover plate pushes the movable plate to resist the rotation of the torsion spring until the clamping shaft is disengaged from the clamping slot, and the cover plate is opened relative to the main body.

[0014] In some embodiments, the cover plate is provided with a limiting groove, and the main body is provided with an elastic protrusion adapted to the limiting groove; when the cover plate is closed, the elastic protrusion extends into the limiting groove to limit the rotation of the cover plate.

[0015] In some embodiments, the cover plate includes a pressure-applying portion, and the movable plate includes a pressure-receiving portion, and the pressure-receiving portion is located on the rotation path of the pressure-applying portion; when the cover plate rotates toward the opening direction in the closed state, the pressure-applying portion pushes the pressure-receiving portion to make the movable plate rotate against the torsion spring until the clamping shaft disengages from the clamping slot.

[0016] In some embodiments, the cover plate is provided with a cover pushing groove, and the cover pushing groove is provided with anti-slip grooves.

[0017] In some embodiments, the fixed plate is provided with a first groove, the movable plate is provided with a second groove, and groove walls of the first groove and the second groove form the clamping groove.

[0018] In some embodiments, the fixed plate and the movable plate are each provided with a first guide slope in the direction in which the clamping shaft enters the clamping slot, and a first guide opening with a diameter gradually decreasing along the direction in which the clamping shaft enters the clamping slot is formed between the first guide slopes; the fixed plate and the movable plate are each provided with a second guide slope in the direction in which the clamping shaft disengages from the clamping slot, and a second guide opening with a diameter gradually decreasing along the direction in which the clamping shaft disengages from the clamping slot is formed between the second guide slopes.

[0019] In some embodiments, the buckle assembly is provided in two groups and is respectively located at two ends of the main body, and the clamping grooves of the two buckle assemblies are respectively used to fix the two ends of the clamping shaft.

[0020] In some embodiments, a paper feed roller is disposed on the cover plate, a shaft sleeve is disposed at the end of the paper feed roller, and the shaft sleeve is configured as the clamping shaft.

[0021] The utility model also provides a printer, comprising the above-mentioned printer cover opening structure.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the printer cover opening structure and the printer provided by the utility model have the following beneficial effects:

[0024] When the printer is working, the cover is opened or closed by rotating. When the cover is rotated in the closing direction from the open state, the cover pushes the movable plate to rotate against the torsion spring until the clamping shaft rotates into the clamping slot. At this time, the torsion spring drives the movable plate to rotate to a position where the opening size of the clamping slot is smaller than the size of the clamping shaft, so that the clamping shaft is fixed between the fixed plate and the movable plate, and the cover is closed with the main body; when the cover is rotated in the opening direction from the closing state, the cover pushes the movable plate to rotate against the torsion spring until it is separated from the clamping slot, and the cover is opened relative to the main body. It can be seen that the printer cover opening structure and the printer of the utility model can realize opening and closing of the cover by rotating the cover, avoiding the cumbersome operation caused by using screws or button components to open and close the cover, and the operation is more convenient. At the same time, there is no need to install buttons on the main body and the cover, which is conducive to improving the integrity and simplicity of the product appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the printer in the embodiment with the cover opened.

[0026] Figure 2 It is a three-dimensional diagram of the printer cover opening structure in the embodiment in the cover opening state.

[0027] Figure 3 It is a side view of the printer cover opening structure in the embodiment in the cover opening state.

[0028] Figure 4 It is a first stereoscopic view of the printer cover opening structure in the embodiment in the cover closing state.

[0029] Figure 5 It is a second stereoscopic view of the printer cover opening structure in the embodiment in the cover closing state.

[0030] Figure 6 It is a side view of the printer cover opening structure in the embodiment in the cover closing state.

[0031] Reference numerals:

[0032] Main body 1, elastic protrusion 11;

[0033] Cover plate 2, clamping shaft 21, limiting groove 22, pressure portion 23, cover pushing groove 24, paper feed roller shaft 25;

[0034] Buckle assembly 3 , fixed plate 31 , movable plate 32 , torsion spring 33 , pin 34 , clamping slot 300 , first groove 301 , second groove 302 , pressure receiving portion 303 , first guide slope 304 , second guide slope 305 . DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] Existing printers use screws or button components to open and close the cover, which has the problems of cumbersome operation and affects the overall appearance.

[0037] In order to solve the above technical problems, this embodiment provides a printer cover opening structure and a printer, please refer to Figures 1 to 6 As shown, Figure 1 is a three-dimensional diagram of the printer in the embodiment in the open cover state, Figure 2 is a three-dimensional diagram of the printer cover opening structure in the embodiment in the cover opening state, Figure 3 is a side view of the printer cover opening structure in the embodiment in the cover opening state, Figure 4 This is a first stereoscopic view of the printer cover opening structure in the embodiment in the cover closing state. Figure 5 is a second stereoscopic view of the printer cover opening structure in the embodiment in the cover closing state, Figure 5 It is a side view of the printer cover opening structure in the embodiment in the cover closing state.

[0038] The printer of this embodiment includes a printer cover opening structure, and the printer cover opening structure includes: a main body 1, a cover plate 2 and a buckle assembly 3.

[0039] like Figure 2 As shown, the cover plate 2 is rotatably connected to the main body 1 and is provided with a snap-on shaft 21; the snap assembly 3 is provided inside the main body 1 and includes a fixed plate 31, a movable plate 32 and a torsion spring 33, and the fixed plate 31 is fixedly provided inside the main body 1, as shown in FIG. Figure 5 As shown, the movable plate 32 is rotatably connected to the fixed plate 31 via a pin 34. Figure 3 As shown, a slot 300 for the clamping shaft 21 to enter is formed between the movable plate 32 and the fixed plate 31 , and a torsion spring 33 is sleeved on the pin 34 , with one end connected to the movable plate 32 and the other end fixed to the main body 1 or the fixed plate 31 .

[0040] When the printer of the above technical solution is working, the cover plate 2 is opened or closed by rotating. When the cover plate 2 is rotated in the closing direction from the open state, the cover plate 2 pushes the movable plate 32 to rotate against the torsion spring 33 until the clamping shaft 21 rotates into the clamping slot 300. At this time, the torsion spring 33 drives the movable plate 32 to rotate to a position where the opening size of the clamping slot 300 is smaller than the size of the clamping shaft 21, so that the clamping shaft 21 is fixed between the fixed plate 31 and the movable plate 32, and the cover plate 2 is closed with the main body 1. Figure 6 When the cover plate 2 is rotated in the opening direction in the closed state, the cover plate 2 pushes the movable plate 32 to rotate against the torsion spring 33 until it is out of the slot 300, and the cover plate 2 is opened relative to the main body 1, as shown Figure 3It can be seen that the printer cover opening structure and the printer of the above technical solution can realize opening and closing of the cover by rotating the cover plate 2, avoiding the cumbersome operation caused by using screws or button components to open and close the cover, and the operation is more convenient. At the same time, there is no need to install buttons on the main body 1 and the cover plate 2, which is conducive to improving the integrity and simplicity of the product appearance.

[0041] In order to increase the stability of the cover plate 2 in the closed state, see Figure 1 As shown, the cover plate 2 is provided with a limiting groove 22, and the main body 1 is provided with an elastic protrusion 11 adapted to the limiting groove 22; when the cover plate 2 is closed, the elastic protrusion 11 extends into the limiting groove 22 to limit the rotation of the cover plate 2.

[0042] Exemplarily, a limiting groove 22 is respectively provided at both ends of the cover plate 2, and correspondingly, an adaptive elastic protrusion 11 is also respectively provided at both ends of the main body 1.

[0043] Exemplarily, the elastic protrusion 11 is a rubber piece or an elastic sheet, and is fixed to the inner side of the shell of the main body 1 .

[0044] In one embodiment of the above-mentioned cover plate 2 pushing the movable plate 32, see Figure 1 and Figure 5 As shown, the cover plate 2 includes a pressure-applying portion 23, and the movable plate 32 includes a pressure-receiving portion 303, and the pressure-receiving portion 303 is located on the rotation path of the pressure-applying portion 23; when the cover plate 2 rotates in the opening direction from the closed state, the pressure-applying portion 23 pushes the pressure-receiving portion 303 to make the movable plate 32 rotate against the torsion spring 33 until the clamping shaft 21 disengages from the clamping slot 300.

[0045] Exemplarily, the pressure-applying portion 23 and the pressure-receiving portion 303 are integrally formed on the cover plate 2 and the fixing plate 31 , respectively.

[0046] For example, see Figure 5 As shown, when the cover 2 is closed, the pressure-applying portion 23 contacts the pressure-receiving portion 303 , so that the pressure-applying portion 23 can directly push the pressure-receiving portion 303 when the cover 2 rotates in the opening direction, so that the movable plate 32 rotates immediately to disengage the clamping shaft 21 from the clamping slot 300 .

[0047] In another embodiment of the cover plate 2 pushing the movable plate 32 , the cover plate 2 pushes the movable plate 32 via the clamping shaft 21 to open the clamping slot 300 , so that the clamping shaft 21 can enter or leave the clamping slot 300 .

[0048] In order to facilitate the operation of the cover 2 rotation, refer to Figure 1 As shown, the cover plate 2 is provided with a cover pushing groove 24, and anti-slip grooves are provided inside the cover pushing groove 24. The user can hold the end of the main body 1 and use the thumb to push the anti-slip grooves inside the cover pushing groove 24 to open the end cover, which is more convenient to use.

[0049] Exemplarily, a cover-pushing groove 24 is provided at each end of the cover plate 2, so as to facilitate opening of the cover plate 2 by controlling the cover plate 2 with both hands, and is suitable for the case where the cover plate 2 is relatively long.

[0050] In one embodiment of the above-mentioned movable plate 32 and fixed plate 31 forming the slot 300, see Figure 3 As shown, the fixed plate 31 is provided with a first groove 301 , the movable plate 32 is provided with a second groove 302 , and the groove walls of the first groove 301 and the second groove 302 form a clamping groove 300 .

[0051] It is understandable that a groove may be separately provided on the fixed plate 31 or the movable plate 32 to form the clamping slot 300 . The key point is that the clamping slot 300 can limit the clamping shaft 21 .

[0052] In order to facilitate the engagement of the coupling shaft 21 into and out of the engagement slot 300, see Figure 3 As shown, the fixed plate 31 and the movable plate 32 are each provided with a first guiding inclined surface 304 in the direction in which the clamping shaft 21 enters the clamping slot 300, and a first guiding opening with a diameter gradually decreasing along the direction in which the clamping shaft 21 enters the clamping slot 300 is formed between the first guiding inclined surfaces 304; the fixed plate 31 and the movable plate 32 are each provided with a second guiding inclined surface 305 in the direction in which the clamping shaft 21 leaves the clamping slot 300, and a second guiding opening with a diameter gradually decreasing along the direction in which the clamping shaft 21 leaves the clamping slot 300 is formed between the second guiding inclined surfaces 305. When the clamping shaft 21 enters and leaves the clamping slot 300, the first guiding inclined surface 304 and the second guiding inclined surface 305 of the movable plate 32 can be pushed to rotate the movable plate 32 in the direction in which the clamping slot 300 is opened, so that the entry and exit of the clamping shaft 21 are more convenient.

[0053] The number of the above-mentioned snap-in components 3 can be set as needed. For example, in order to improve the stability of the covering state, two groups of snap-in components 3 are provided and are respectively located at the two ends of the main body 1. The slots 300 of the two snap-in components 3 are respectively used to fix the two ends of the clamping shaft 21.

[0054] In one embodiment of the above-mentioned clamping shaft 21, see Figure 2 As shown, a paper feed roller 25 for conveying printing paper is provided on the cover plate 2, and a sleeve is provided at the end of the paper feed roller 25, and the sleeve is configured as a clamping shaft 21. The sleeve is connected to the cover plate 2, and the paper feed roller 25 rotates on the sleeve, so that when the sleeve acts as the clamping shaft 21 and enters the card slot 300, it will not interfere with the rotation of the paper feed roller 25.

[0055] In another embodiment of the above-mentioned clamping shaft 21 , a convex shaft is integrally formed or separately provided on the cover plate 2 , and the convex shaft serves as the clamping shaft 21 .

[0056] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printer cover opening structure, characterized in that: include: main body; A cover plate, the cover plate is rotatably connected to the main body and is provided with a clamping shaft; A buckle assembly is arranged inside the main body and includes a fixed plate, a movable plate and a torsion spring. The fixed plate is fixed inside the main body. The movable plate is rotatably connected to the fixed plate through a pin shaft and a slot for the clamping shaft to enter is formed between the movable plate and the fixed plate. The torsion spring is sleeved on the pin shaft, and one end is connected to the movable plate, and the other end is fixed to the main body or the fixed plate. Among them, when the cover plate rotates in the closing direction, the cover plate pushes the movable plate to resist the rotation of the torsion spring until the clamping shaft rotates into the clamping slot. At this time, the torsion spring drives the movable plate to rotate to a position where the opening size of the clamping slot is smaller than the size of the clamping shaft, so that the clamping shaft is fixed between the fixed plate and the movable plate, and the cover plate is closed with the main body; when the cover plate rotates in the opening direction in the closing state, the cover plate pushes the movable plate to resist the rotation of the torsion spring until the clamping shaft is disengaged from the clamping slot, and the cover plate is opened relative to the main body.

2. The printer cover opening structure according to claim 1, characterized in that: The cover plate is provided with a limiting groove, and the main body is provided with an elastic protrusion adapted to the limiting groove; when the cover plate is closed, the elastic protrusion extends into the limiting groove to limit the rotation of the cover plate.

3. The printer cover opening structure according to claim 1, characterized in that: The cover plate includes a pressure-applying portion, and the movable plate includes a pressure-receiving portion, and the pressure-receiving portion is located on the rotation path of the pressure-applying portion; when the cover plate rotates in the opening direction from the closed state, the pressure-applying portion pushes the pressure-receiving portion to make the movable plate rotate against the torsion spring until the clamping shaft disengages from the clamping slot.

4. The printer cover opening structure according to claim 1, characterized in that: The fixed plate is provided with a first groove, the movable plate is provided with a second groove, and the groove walls of the first groove and the second groove form the clamping groove.

5. The printer cover opening structure according to claim 1, characterized in that: The fixed plate and the movable plate are each provided with a first guiding inclined surface in the direction in which the clamping shaft enters the clamping slot, and a first guiding opening with a diameter gradually decreasing along the direction in which the clamping shaft enters the clamping slot is formed between the first guiding inclined surfaces; the fixed plate and the movable plate are each provided with a second guiding inclined surface in the direction in which the clamping shaft disengages from the clamping slot, and a second guiding opening with a diameter gradually decreasing along the direction in which the clamping shaft disengages from the clamping slot is formed between the second guiding inclined surfaces.

6. The printer cover opening structure according to claim 1, characterized in that: The buckle components are provided in two groups and are respectively located at the two ends of the main body. The clamping grooves of the two buckle components are respectively used to fix the two ends of the clamping shaft.

7. The printer cover opening structure according to claim 1, characterized in that: The cover plate is provided with a cover pushing groove, and the cover pushing groove is provided with anti-slip grooves.

8. The printer cover opening structure according to claim 1, characterized in that: A paper feed roller is disposed on the cover plate, and a shaft sleeve is disposed at the end of the paper feed roller, and the shaft sleeve is configured as the clamping shaft.

9. A printer, characterized in that: The invention comprises the printer cover opening structure as claimed in any one of claims 1 to 6.

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