Printing device

Abstract

The utility model discloses a printing device, which comprises a device main body provided with an accommodating cavity, and the accommodating cavity is provided with an opening on the surface of the device main body; one end of the cover body is provided with a first connecting part, the cover body can move along a preset path, when the cover body is located at the starting end of the preset path, the cover body covers the opening, when the cover body is located at the tail end of the preset path, the cover body and the opening are staggered, and the first connecting part is provided with a limiting part; and the limiting matching part is arranged in the containing cavity, and when the cover body is located at the tail end of the preset path, limiting matching is formed between the limiting part and the limiting matching part. Compared with the prior art, the limiting part is arranged on the cover body, and the limiting matching part is arranged in the device main body, so that when the cover body moves to the tail end of the preset path, limiting matching can be formed between the limiting part and the limiting matching part, and the cover body can be effectively prevented from moving towards the starting end of the preset path; therefore, the problem that the cover body falls due to the gravity effect after the cover is opened is solved, operation is easy and convenient, and user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing devices, in particular to a printing device. Background Art

[0002] After the cover of an existing printer is opened, due to gravity, the flip cover may fall down, injuring the user and posing a safety hazard. When the printer is used in a suspended manner, due to gravity, when replacing the printing medium, one hand needs to hold the flip cover while the other hand replaces the printing medium, which is inconvenient to operate and affects the user experience. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a printing device to solve the problem that the flip cover of the printer is prone to falling due to the action of gravity after the cover is opened.

[0004] The utility model provides a printing device, including:

[0005] A device main body, which has a receiving cavity, and the receiving cavity forms an opening on the surface of the device main body;

[0006] A cover body, one end of which has a first connecting portion, and the cover body is connected to the device main body through the first connecting portion. The cover body can move along a first preset path. When the cover body is at the starting end of the first preset path, the cover body covers the opening. When the cover body is at the end of the first preset path, the cover body is misaligned with the opening, and a limiting portion is provided on the first connecting portion;

[0007] A limiting and cooperating portion, which is arranged in the receiving cavity. When the cover body is at the end of the first preset path, a limiting cooperation is formed between the limiting portion and the limiting and cooperating portion.

[0008] In a printing device as described above, preferably, a second connecting portion is provided on the side wall of the receiving cavity, the limiting and cooperating portion is arranged on the second connecting portion, the first connecting portion includes a first end and a second end, the first end of the first connecting portion is connected to the cover body, the second end of the first connecting portion is connected to the second connecting portion, and the second end of the first connecting portion can move along the first preset path.

[0009] In a printing device as described above, preferably, the second connecting portion is a first fixing column arranged on the side wall of the receiving cavity, the second end of the first connecting portion is sleeved on the first fixing column, and the first preset path is a path that rotates around the axis of the first fixing column.

[0010] A printing device as described above, wherein preferably, the second end of the first connecting portion has a connecting hole, the connecting hole is sleeved on the first fixing post, and the limiting portion is arranged in the connecting hole.

[0011] A printing device as described above, wherein preferably, the limiting portion is a first protrusion arranged on the inner wall surface of the connecting hole, and the first protrusion extends along the axial direction of the connecting hole.

[0012] A printing device as described above, wherein preferably, the length that the first protrusion extends along the axial direction of the connecting hole is less than the height of the connecting hole along its axial direction.

[0013] A printing device as described above, wherein preferably, the limiting and cooperating portion includes a second protrusion and a third protrusion, the second protrusion is arranged at the end of the first fixing post and extends along the axial direction of the first fixing post, the third protrusion is arranged on the outer peripheral surface of the second protrusion, and the extending direction of the third protrusion is perpendicular to the axial direction of the first fixing post.

[0014] A printing device as described above, wherein preferably, the third protrusion is located on the outer peripheral surface of the second protrusion closest to the cover body.

[0015] A printing device as described above, wherein preferably, the third protrusion extends along a direction perpendicular to the axial direction of the first fixing post until it is flush with the outer periphery of the first fixing post.

[0016] A printing device as described above, wherein preferably, a plurality of hanging holes are provided on one side of the device main body facing away from the accommodating cavity.

[0017] Compared with the prior art, by providing a limiting portion on the cover body and a limiting and cooperating portion in the device main body, when the cover body moves to the end of the first preset path, a limiting cooperation can be formed between the limiting portion and the limiting and cooperating portion, which can effectively prevent the cover body from moving towards the starting end of the first preset path, thus solving the problem that the cover body drops due to gravity after opening the cover, with simple operation and improved user experience. Description of the Drawings

[0018] Figure 1 is a perspective view of the printing device provided by the embodiment of the present invention in the open state from the first perspective;

[0019] Figure 2 is Figure 1 an enlarged view of the partial area A in

[0020] Figure 3 is a perspective view of the printing device provided by the embodiment of the present invention in the open state from the second perspective;

[0021] Figure 4 It is a third - perspective three - dimensional view of the printing device in the open - cover state provided by the embodiment of the present utility model;

[0022] Figure 5 It is a three - dimensional view of the device main body provided by the embodiment of the present utility model;

[0023] Figure 6 is Figure 5 an enlarged view of the partial B in

[0024] Figure 7 It is a three - dimensional view of the printing device in the closed - cover state provided by the embodiment of the present utility model.

[0025] Description of reference numerals:

[0026] 10 - device main body, 11 - accommodation cavity, 12 - opening, 13 - limiting and mating part, 131 - second protrusion, 132 - third protrusion, 14 - second connection part, 141 - first fixing column, 15 - second limiting member, 16 - paper bin, 17 - locking part, 18 - suspension hole;

[0027] 20 - cover body, 21 - first connection part, 211 - connection hole, 212 - first limiting member, 22 - limiting part, 221 - first protrusion, 23 - first groove, 24 - pressure roller;

[0028] 30 - elastic member, 31 - torsion spring;

[0029] 40 - fixing part, 41 - second fixing column;

[0030] 50 - fixing cover, 51 - second groove;

[0031] 60 - print head;

[0032] 70 - paper outlet. Detailed implementation manners

[0033] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model.

[0034] Referring to Figures 1 to 7 as shown, the present utility model provides a printing device, including a device main body 10, a cover body 20 and a limiting and mating part 13, wherein:

[0035] The device main body 10 has an accommodation cavity 11, and the accommodation cavity 11 forms an opening 12 on the surface of the device main body 10. There is a paper bin 16 in the accommodation cavity 11. When the accommodation cavity 11 is in an open state, a user can install a printing medium into the paper bin 16 or remove the printing medium from the paper bin 16.

[0036] One end of the cover body 20 has a first connection part 21. The cover body 20 is connected to the device main body 10 through the first connection part 21. The cover body 20 is movable to open or close the accommodation cavity 11. The cover body 20 can move along a first preset path. When the cover body 20 is located at the starting end of the first preset path, the cover body 20 covers the opening 12, and at this time the accommodation cavity 11 is closed. When the cover body 20 is located at the end of the first preset path, the cover body 20 is misaligned with the opening 12, and at this time the accommodation cavity 11 is open.

[0037] The printing device of the present application needs to be hung for use. When the printing medium needs to be replaced, after opening the cover, the cover body 20 is at the end of the first preset path. Under the action of gravity, the cover body 20 will move towards the starting end of the first preset path. In order to prevent the cover body 20 from falling, the user needs to hold the cover body 20 and then replace the printing medium, which is not convenient to operate and the user experience is poor.

[0038] To solve the above problems, in the embodiments provided by the present application, with reference to Figure 2 and Figure 6 as shown, a limiting part 22 is provided on the first connection part 21, and a limiting cooperation part 13 is provided in the accommodation cavity 11. When the cover body 20 is located at the end of the first preset path, a limiting cooperation is formed between the limiting part 22 and the limiting cooperation part 13 to prevent the cover body 20 from moving towards the starting end of the first preset path under the action of gravity, so that during the process of replacing the printing medium, the cover body 20 can remain at the end of the first preset path and cannot fall, which is convenient for the user to operate and is beneficial to improving the user experience.

[0039] Limiting cooperation parts 13 are provided on both opposite side walls of the accommodation cavity 11, and first connection parts 21 are provided on both opposite sides of one end of the cover body 20. Each first connection part 21 has a limiting part 22. Under the combined action of the limiting parts 22 and the limiting cooperation parts 13 on both sides, after the cover body 20 reaches the end of the first preset path, it can more stably maintain the state of being located at the end of the first preset path, preventing the situation that one side of the cover body 20 falls due to uneven force on both sides.

[0040] With reference to Figure 3 and Figure 4As shown, a locking portion 17 is provided on the device main body 10. When the cover body 20 is located at the starting end of the first preset path, the locking portion 17 locks the cover body 20 and the device main body 10. When the locking state between the cover body 20 and the device main body 10 is released by the locking portion 17, the cover body 20 can move towards the end of the first preset path. When the cover body 20 moves to a position where the limiting portion 22 and the limiting cooperation portion 13 form a limiting cooperation, the cover body 20 reaches the end of the first preset path, and the accommodating cavity 11 can remain in an open state, allowing the user to perform corresponding operations, thus improving the user experience. The locking portion 17 can adopt a structure or component in the prior art that can lock the device main body 10 and the cover body 20, which will not be elaborated here.

[0041] Referring to Figure 2 and Figure 6 As shown, a second connecting portion 14 is provided on the side wall of the accommodating cavity 11, and the limiting cooperation portion 13 is provided on the second connecting portion 14. The first connecting portion 21 includes a first end and a second end. The first end of the first connecting portion 21 is connected to the cover body 20, and the second end of the first connecting portion 21 is connected to the second connecting portion 14, thereby realizing the connection between the cover body 20 and the device main body 10. The second end of the first connecting portion 21 can move along the first preset path. When the second end of the first connecting portion 21 moves along the first preset path, the cover body 20 moves synchronously along the first preset path.

[0042] In a feasible embodiment, the second connecting portion 14 is a first fixing column 141 provided on the side wall of the accommodating cavity 11. The first fixing column 141 is a cylinder provided on the side wall of the accommodating cavity 11 and extending towards the inside of the accommodating cavity 11. The second end of the first connecting portion 21 is sleeved on the first fixing column 141, thereby realizing the connection between the first connecting portion 21 and the second connecting portion 14. The first preset path is a path rotating around the axis of the first fixing column 141. When opening or closing the cover, the cover body 20 rotates around the axis of the first fixing column 141 to open or close the paper bin 16.

[0043] Preferably, the second end of the first connecting portion 21 has a connecting hole 211, and the connecting hole 211 is sleeved on the first fixing column 141. The limiting portion 22 is provided in the connecting hole 211. The connecting hole 211 rotates around the axis of the first fixing column 141 to realize the rotation of the cover body 20. When the connecting hole 211 rotates to a position where the limiting portion 22 and the limiting cooperation portion 13 form a limiting cooperation, the rotation stops, so that the cover body 20 remains at the end of the first preset path.

[0044] Furthermore, the limiting portion 22 is a first protrusion 221 provided on the inner wall surface of the connecting hole 211, and the first protrusion 221 extends along the axis of the connecting hole 211. The limiting mating portion 13 includes a second protrusion 131 and a third protrusion 132. The second protrusion 131 is provided at the end of the first fixing post 141 along the axis of the first fixing post 141, and the third protrusion 132 is provided on the outer peripheral surface of the second protrusion 131 closest to the cover body 20. The extension direction of the third protrusion 132 is perpendicular to the axis of the first fixing post 141. When the cover body 20 is at the starting end of the first preset path, the third protrusion 132 is closer to the cover body 20 than the first protrusion 221, and there is no connection relationship between the first protrusion 221 and the third protrusion 132. When the connecting hole 211 rotates to drive the cover body 20 to move toward the end of the first preset path, the first protrusion 221 rotates synchronously with the connecting hole 211. After the first protrusion 221 passes over the third protrusion 132, the cover body 20 moves to the end of the first preset path, and the first protrusion 221 abuts against the third protrusion 132 to form a limit fit, thereby limiting the cover body 20 from moving toward the starting end of the first preset path.

[0045] In order to enable the cover body 20 to move smoothly along the first preset path, the length of the first protrusion 221 extending along the axial direction of the connecting hole 211 should be smaller than the height of the connecting hole 211 along its axial direction, so that part of the inner wall surface of the connecting hole 211 can fit with the outer peripheral surface of the first fixing column 141, thereby enabling the connecting hole 211 to rotate smoothly along the outer peripheral surface of the first fixing column 141.

[0046] The length of the third protrusion 132 extending from the outer circumference of the second protrusion 131 cannot be too long, otherwise it will affect the rotation of the connecting hole 211. Figure 6 As shown, the third protrusion 132 extends along the axial direction perpendicular to the first fixing column 141 to be flush with the outer periphery of the first fixing column 141. On the one hand, when the first protrusion 221 rotates to the position of the third protrusion 132, under the action of external force, the first protrusion 221 can pass over the third protrusion 132 and resist against the third protrusion 132. On the other hand, cost is saved under the premise of being able to achieve limited cooperation.

[0047] Since the printing device of this application needs to be hung for use, refer to Figure 4 As shown, the side of the device body 10 facing away from the accommodating chamber 11 is provided with a plurality of hanging holes 18. These holes 18 allow the printing device to be hung in any convenient location for user operation. Preferably, two hanging holes 18 are provided, one on opposite sides of the bottom of the printing device, so that the printing device can be stably hung on a wall or other location. The number of hanging holes 18 can be selected based on factors such as the hanging location and the size of the printing device, and is not limited here.

[0048] In order to give users a better experience during the opening process, refer toFigure 2 As shown, an elastic member 30 is further provided in the accommodation cavity 11. The two ends of the elastic member 30 are respectively abutted against the cover body 20 and the device main body 10. During the process of the cover body 20 moving towards the starting end of the first preset path, the elastic member 30 is elastically deformed under the action of an external force and stores elastic force. When the cover body 20 is opened, the elastic force stored in the elastic member 30 acts on the cover body 20, enabling the cover body 20 to move towards the end of the first preset path, thereby realizing the automatic movement of the cover body 20 towards the end of the first preset path.

[0049] Furthermore, a fixing portion 40 is provided on the side wall of the accommodation cavity 11. The elastic member 30 is arranged on the fixing portion 40. The elastic member 30 includes a first end and a second end. The first end of the elastic member 30 abuts against the first connecting portion 21, and the second end of the elastic member 30 abuts against the device main body 10. When the cover body 20 moves along the first preset path, the elastic member 30 can move along the second preset path. Specifically, the fixing portion 40 is a second fixing column 41 provided on the side wall of the accommodation cavity 11. The second fixing column 41 and the first fixing column 141 are arranged on the same side wall of the accommodation cavity 11, and the second fixing column 41 is a cylinder with an extending direction parallel to that of the first fixing column 141. The second preset path is a path rotating around the axis of the second fixing column 41. The middle section of the elastic member 30 is sleeved on the second fixing column 41. During the process of the cover body 20 rotating along the first preset path, the elastic member 30 rotates along the second preset path. When the cover body 20 is located at the starting end of the first preset path, the elastic member 30 is located at the starting end of the second preset path and stores elastic force. When the cover body 20 is located at the end of the first preset path, the elastic member 30 is located at the end of the second preset path. When the elastic member 30 moves towards the end of the second preset path, it acts on the cover body 20 with the elastic force to make the cover body 20 move towards the end of the first preset path.

[0050] Preferably, the elastic member 30 is a torsion spring 31. The center of the torsion spring 31 is sleeved on the second fixing column 41. The torsion spring 31 can rotate around the axis of the second fixing column 41. The two ends of the torsion spring 31 respectively abut against the first connecting portion 21 and the device main body 10. When the torsion spring 31 rotates towards the starting end of the second preset path, the two ends of the torsion spring 31 are elastically deformed and store elastic force. When the torsion spring 31 moves towards the end of the second preset path, the two ends of the torsion spring 31 apply the stored elastic force to the cover body 20 to drive the cover body 20 to move towards the end of the first preset path.

[0051] In other embodiments, the elastic member 30 can adopt other structures or components that can drive the cover body 20 to automatically move towards the end of the first preset path, which is not limited herein.

[0052] Since the cover body 20 is driven by the elastic force of the elastic member 30 to move to the end of the first preset path, and the two ends of the elastic member 30 are respectively abutted against the first connecting portion 21 and the device main body 10, during the movement, the positions of the two ends of the elastic member 30 are likely to shift, resulting in a change in the direction of the elastic force. Furthermore, during the process of opening the cover, the cover body 20 will shake, thus affecting the stability of the structure of the printing device.

[0053] To solve the above problems, continue to refer to Figure 2 As shown, in the embodiment provided by the present application, a first limiting member 212 is provided on the first connecting portion 21. The first limiting member 212 is used to limit the range of movement of the first end of the elastic member 30. A second limiting member 15 is provided in the device main body 10. The second limiting member 15 is used to limit the range of movement of the second end of the elastic member 30. By restricting the two ends of the elastic member 30 by the first limiting member 212 and the second limiting member 15, the stability of the rotation of the cover body 20 can be improved.

[0054] In a feasible implementation manner, the first limiting member 212 is a first limiting groove provided on the first connecting portion 21. At least a part of the first end of the elastic member 30 is located in the first limiting groove. The first end of the elastic member 30 abuts against the first limiting groove. When the elastic member 30 rotates along the second preset path, the first end of the elastic member 30 moves in the first limiting groove and always abuts against the first limiting groove. Similarly, the second limiting member 15 is a second limiting groove provided in the device main body 10. At least a part of the second end of the elastic member 30 is located in the second limiting groove. When the elastic member 30 rotates along the second preset path, the second end of the elastic member 30 moves in the second limiting groove and always abuts against the second limiting groove. Furthermore, the two ends of the elastic member 30 can only reciprocate within a limited range, so that the cover body 20 can rotate stably.

[0055] In another feasible implementation manner, at least one end of the two ends of the elastic member 30 is fixedly connected to the first connecting portion 21 or the device main body 10, and the other end of the elastic member 30 abuts against the device main body 10 or the first connecting portion 21, which can also limit the position deviation of the elastic member 30 when moving along the second first preset path.

[0056] In other implementation manners, other structures or components that can prevent the two ends of the elastic member 30 from shifting in position during the movement along the second preset path can be adopted, which will not be limited here.

[0057] Refer to Figure 1 、 Figure 3 And Figure 7As shown in the figure, in the embodiment provided by the present application, the printing device further includes a fixed cover 50, which is arranged on the device main body 10 and is arranged offset from the opening 12. One end of the cover body 20 far from the first connecting portion 21 has a first groove 23, and a rotatable pressure roller 24 is arranged on the side opposite to the first groove 23. One side of the fixed cover 50 close to the accommodating cavity 11 has a second groove 51. A printing head 60 is arranged on the side wall of the accommodating cavity 11 close to the fixed cover 50. When the cover body 20 is at the starting end of the first preset path, the first groove 23 is connected to the second groove 51 to enclose a paper outlet 70. The pressure roller 24 is located in the accommodating cavity 11 and approaches the printing head 60. When the printing device is printing, the printing medium is located between the pressure roller 24 and the printing head 60. The pressure roller 24 squeezes the printing medium towards the printing head 60, and at the same time, the pressure roller 24 conveys the printing medium through rotation. The printed printing medium is output from the paper outlet 70.

[0058] Based on the above embodiments, the process of closing and opening the cover of the printing device of the present utility model is as follows:

[0059] Closing the cover: The user applies an external force to the cover body 20 to make the cover body 20 move towards the starting end of the first preset path. During the movement, the elastic member 30 is compressed and undergoes elastic deformation to accumulate elastic force. When the cover body 20 moves to the end of the first preset path, the locking portion 17 locks the cover body 20 and the device main body 10, and the printing device can perform printing operations.

[0060] Opening the cover: First, the locking state between the cover body 20 and the device main body 10 is released through the locking portion 17. The elastic member 30 applies the accumulated elastic force to the cover body 20 to drive the cover body 20 to move towards the end of the first preset path. When the cover body 20 moves to the end of the first preset path, a limit fit is formed between the limit portion 22 on the first connecting portion 21 and the limit fit portion 13 in the device main body to prevent the cover body 20 from moving towards the starting end of the first preset path, so that the printing device maintains the open cover state.

[0061] The above has detailedly described the structure, features, and function effects of the present utility model according to the embodiments shown in the drawings. The above is only the preferred embodiment of the present utility model, but the present utility model is not limited to the implementation scope shown in the drawings. All changes made according to the concept of the present utility model, or equivalent implementation examples modified into equivalent changes, still within the spirit covered by the specification and the drawings, should be within the protection scope of the present utility model.

Claims

1. A printing device, characterized in that, Comprising: A device main body having a receiving cavity which forms an opening on the surface of the device main body; A cover body, one end of the cover body has a first connecting portion, the cover body is connected to the device main body through the first connecting portion, the cover body can move along a first preset path, when the cover body is located at the starting end of the first preset path, the cover body covers the opening, when the cover body is located at the end of the first preset path, the cover body is misaligned with the opening, and a limiting portion is provided on the first connecting portion; A limiting and cooperating portion provided in the receiving cavity, when the cover body is located at the end of the first preset path, a limiting cooperation is formed between the limiting portion and the limiting and cooperating portion.

2. The printing device according to claim 1, characterized in that, A second connecting portion is provided on the side wall of the receiving cavity, the limiting and cooperating portion is provided on the second connecting portion, the first connecting portion includes a first end and a second end, the first end of the first connecting portion is connected to the cover body, the second end of the first connecting portion is connected to the second connecting portion, and the second end of the first connecting portion can move along the first preset path.

3. The printing device according to claim 2, characterized in that, The second connecting portion is a first fixing column provided on the side wall of the receiving cavity, the second end of the first connecting portion is sleeved on the first fixing column, and the first preset path is a path rotating around the axis of the first fixing column.

4. The printing apparatus according to claim 3, wherein The second end of the first connecting portion has a connecting hole which is sleeved on the first fixing column, and the limiting portion is provided in the connecting hole.

5. The printing device according to claim 4, wherein, The limiting portion is a first protrusion provided on the inner wall surface of the connecting hole, and the first protrusion extends along the axial direction of the connecting hole.

6. The printing device according to claim 5, characterized in that, The length of the first protrusion extending along the axial direction of the connecting hole is less than the height of the connecting hole along its axial direction.

7. The printing apparatus according to claim 3, wherein The limiting and cooperating portion includes a second protrusion and a third protrusion, the second protrusion is provided at the end of the first fixing column and extends along the axial direction of the first fixing column, the third protrusion is provided on the outer peripheral surface of the second protrusion, and the extending direction of the third protrusion is perpendicular to the axial direction of the first fixing column.

8. The printing apparatus according to claim 7, wherein The third protrusion is located on the outer peripheral surface of the second protrusion closest to the cover body.

9. The printing apparatus according to claim 8, wherein The third protrusion extends along a direction perpendicular to the axial direction of the first fixing column to be flush with the outer periphery of the first fixing column.

10. The printing device according to claim 1, characterized in that, A plurality of suspension holes are provided on the side of the device main body facing away from the receiving cavity.

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