Balanced stress device for printer

Abstract

The utility model relates to the technical field of printers, in particular to a stress balancing device for a printer, which comprises a main body, an unlocking key is mounted at the front end of the main body, a rubber roller is arranged on the main body, a printing head is correspondingly arranged at the upper end of the rubber roller and is positioned on an upper cover, and the upper cover is arranged on the main body. A spring is arranged on the back face of the printing head on the upper cover to press the printing head on the rubber roller, the rubber roller and the printing head are located on the front side of the printer, two rubber plug holes are formed in the upper cover and symmetrically distributed, and rubber plugs are inserted into the two rubber plug holes. According to the stress balancing device, the rubber plug is arranged on the rear side of the upper cover of the printer, and when the upper cover is buckled on the main body, the pressure of the rubber roller on the printing head and the upper cover and the pressure of the main body on the rubber plug are located on the two sides of the rotating shaft and the lock catch of the upper cover respectively, so that the stress on the two sides of the upper cover is balanced, the upper cover does not incline, and the printing head and the rubber roller perform positive pressure printing more clearly; the gap between the upper cover and the main body is uniform and attractive, and the rubber plug can cover the rubber plug hole, so that the product is more attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a balanced force-bearing device for a printer. Background Art

[0002] Existing printers generally consist of a main body and a top cover. A rubber roller is provided on the main body, and a print head is provided at a corresponding position of the top cover. A spring is provided on the back of the print head to press the print head onto the rubber roller. The rubber roller and the print head are generally located at the front side of the printer, and the rotating shaft and lock of the top cover are in the middle of the device. When the top cover is buckled onto the main body, the pressure of the rubber roller on the print head and the top cover is on one side of the rotating shaft and lock of the top cover. Therefore, the top cover will tilt toward the back side of the printer due to unbalanced force. The gap between the top cover and the main body is larger at the front and smaller at the back, resulting in unclear printing and unsightly appearance. A force balancing device for a printer is needed to solve this problem. Utility Model Content

[0003] The purpose of the present utility model is to provide a balanced force-bearing device for a printer to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a balanced force device for a printer, comprising a main body, an unlocking button installed at the front end of the main body, a rubber roller provided on the main body, a print head corresponding to the upper end of the rubber roller, and the print head is located on the upper cover, a spring is provided on the back of the print head on the upper cover to press the print head onto the rubber roller, and the rubber roller and the print head are located on the front side of the printer, two rubber holes are installed on the upper cover and are symmetrically distributed, and rubber plugs are inserted into the two rubber plug holes.

[0005] As a preferred technical solution of the present invention, the rubber plug is provided with an extrusion portion, and the bottom end of the extrusion portion is respectively and sequentially mounted with a fixing portion and an anti-slip portion.

[0006] As a preferred technical solution of the present invention, an extrusion surface is fixedly mounted on the main body, and the extrusion surface is in the shape of a convex block.

[0007] As a preferred technical solution of the present invention, two lock buckles are fixedly mounted on the upper cover and arranged at the middle end of the upper cover, and lock buckle holes corresponding to the lock buckles are opened on the extrusion surface, and the lock buckle holes are buckled with the lock buckles.

[0008] As a preferred technical solution of the present invention, a hole step is installed on the plug hole, and a card slot adapted to the plug is opened in the hole step.

[0009] As a preferred technical solution of the present invention, a rotating shaft is installed between the main body and the upper cover, and the upper cover is rotatably connected to the main body via the rotating shaft.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] (1) The utility model is a balanced force-bearing device for a printer. The balanced force-bearing device of the device is provided with a rubber plug on the rear side of the upper cover of the printer. When the upper cover is buckled onto the main body, the pressure of the rubber roller on the print head and the upper cover and the pressure of the main body on the rubber plug are respectively located on both sides of the rotating shaft and the lock of the upper cover. Therefore, the forces on both sides of the upper cover are balanced and the upper cover will not tilt. The positive pressure between the print head and the rubber roller makes printing clearer. The gap between the upper cover and the main body is uniform and beautiful. The rubber plug can cover the rubber plug hole, making the product more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is one of the structural schematic diagrams of a force-balancing device for a printer according to an embodiment of the present utility model;

[0014] Figure 2 This is a second structural schematic diagram of a force-balancing device for a printer according to an embodiment of the present utility model;

[0015] Figure 3 This is a structural diagram of a hole step of a force-balancing device for a printer according to an embodiment of the present utility model;

[0016] Figure 4 The figure is a structural schematic diagram of a rubber plug of a force-balancing device for a printer according to an embodiment of the present utility model.

[0017] Reference numerals:

[0018] 1. Main body; 2. Upper cover; 21. Plug hole; 22. Hole step; 23. Card slot; 3. Rubber roller; 4. Print head; 5. Lock; 6. Lock hole; 7. Unlock button; 8. Rotating shaft; 9. Rubber plug; 91. Extrusion part; 92. Fixing part; 93. Anti-slip part; 11. Extrusion surface. DETAILED DESCRIPTION

[0019] Below, the utility model is further described with reference to the accompanying drawings and specific embodiments:

[0020] Example 1

[0021] refer to Figures 1 to 3Embodiment 1 is described, comprising a main body 1, with an unlocking button 7 installed at the front end of the main body 1, a rubber roller 3 provided on the main body 1, a print head 4 corresponding to the upper end of the rubber roller 3, and the print head 4 being located on the upper cover 2. A spring is provided on the back of the print head 4 on the upper cover 2 to press the print head 4 against the rubber roller 3, and the rubber roller 3 and the print head 4 are located at the front side of the printer. Two rubber plug holes 21 are installed on the upper cover 2 and are symmetrically distributed. Rubber plugs 9 are inserted into the two rubber plug holes 21, and a hole step 22 is installed on the rubber plug hole 21. A slot 23 adapted for the rubber plug 9 is defined in the hole step 22. A rotating shaft 8 is installed between the main body 1 and the upper cover 2, and the upper cover 2 is rotatably connected to the main body 1 via the rotating shaft 8.

[0022] In this embodiment, the pressure of the rubber roller 3 on the print head 4 and the upper cover 2 and the pressure of the main body 1 on the rubber plug 9 are respectively located on both sides of the rotating shaft 8 and the lock buckle 5 of the upper cover 2, so the forces on both sides of the upper cover 2 are balanced, the upper cover 2 will not tilt, the positive pressure of the print head 4 and the rubber roller 3 makes printing clearer, and the gap between the upper cover 2 and the main body 1 is uniform and beautiful.

[0023] Example 2

[0024] refer to Figure 2 and Figure 4 Example 2 is described. This embodiment further illustrates Example 1. A rubber plug 9 is provided with an extrusion portion 91. A fixing portion 92 and an anti-slip portion 93 are sequentially mounted on the bottom end of the extrusion portion 91. A main body 1 is fixedly mounted with an extrusion surface 11. The extrusion surface 11 is in the shape of a convex block. Two lock buckles 5 are fixedly mounted on the upper cover 2 and are arranged at the middle end of the upper cover 2. The extrusion surface 11 is provided with lock buckle holes 6 corresponding to the lock buckles 5. The lock buckle holes 6 are engaged with the lock buckles 5.

[0025] In this embodiment, the extrusion portion 91 of the rear plug 9 is pressed on the extrusion surface 11 of the main body 1 to provide a balanced supporting force; the plug extrusion portion 91 mainly provides supporting force, the fixing portion 92 is used to fix the plug 9, and the anti-slip portion 93 can prevent the plug 9 from loosening.

[0026] In specific applications, the printer provided by the device is composed of a main body 1 and an upper cover 2. A rubber roller 3 is provided on the main body 1, and a print head 4 is provided at the corresponding position of the upper cover 2. A spring is provided on the back of the print head 4 to press the print head 4 onto the rubber roller 3. The rubber roller 3 and the print head 4 are located at the front side of the printer. The rotating shaft and the lock 5 of the upper cover 2 are in the middle of the device. A rubber plug 9 is provided on the back side of the upper cover 2 of the printer. When the upper cover 2 is buckled onto the main body 1, the pressure of the rubber roller 3 on the print head 4 and the upper cover 2 and the pressure of the main body 1 on the rubber plug 9 are respectively located on both sides of the rotating shaft 8 and the lock 5 of the upper cover 2, so the forces on both sides of the upper cover 2 are balanced, the upper cover 2 will not tilt, and the print head 4 The positive pressure with the rubber roller 3 makes printing clearer, and the gap between the upper cover 2 and the main body 1 is uniform and beautiful. The rubber plug 9 is arranged in the screw fixing hole of the upper cover, which can make the product more beautiful, and the rubber plug 9 set can be one or more; the hole step 22 on the rear side of the printer is shallower, and after the rubber plug 9 is installed, the extrusion part 91 of the rubber plug 9 is pressed on the extrusion surface 11 of the main body 1 to provide balanced supporting force; the hole step 22 on the front side of the printer is deeper, so that the extrusion part 91 of the rubber plug 9 will not be pressed on the extrusion surface 11 of the main body 1. The rubber plug extrusion part 91 mainly provides supporting force, the fixing part 92 is used to fix the rubber plug 9, and the anti-slip part 93 can prevent the rubber plug 9 from loosening.

[0027] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle", "inside", "top", "bottom end", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, they can mean fixed connection, detachable connection, or integral connection; they can mean mechanical connection or electrical connection; they can mean direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalent features for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A force-balancing device for a printer, characterized in that: The printer comprises a main body (1), wherein an unlocking button (7) is installed at the front end of the main body (1), a rubber roller (3) is provided on the main body (1), a print head (4) is correspondingly provided at the upper end of the rubber roller (3), and the print head (4) is located on the upper cover (2), a spring is provided on the back of the print head (4) on the upper cover (2) to press the print head (4) onto the rubber roller (3), and the rubber roller (3) and the print head (4) are located at the front side of the printer, and two rubber plug holes (21) are installed on the upper cover (2) and are symmetrically distributed, and rubber plugs (9) are inserted into the two rubber plug holes (21).

2. A force balancing device for a printer according to claim 1, characterized in that: The rubber plug (9) is provided with an extrusion portion (91), and the bottom end of the extrusion portion (91) is respectively and sequentially mounted with a fixing portion (92) and an anti-slip portion (93).

3. A force-balancing device for a printer according to claim 1, characterized in that: An extrusion surface (11) is fixedly mounted on the main body (1), and the extrusion surface (11) is in the shape of a convex block.

4. A force-balancing device for a printer according to claim 3, characterized in that: Two lock buckles (5) are fixedly mounted on the upper cover (2) and are arranged at the middle end of the upper cover (2). Lock buckle holes (6) corresponding to the lock buckles (5) are opened on the extrusion surface (11), and the lock buckle holes (6) are buckled with the lock buckles (5).

5. The force-balancing device for a printer according to claim 1, characterized in that: A hole step (22) is installed on the rubber plug hole (21), and a slot (23) adapted to the rubber plug (9) is provided in the hole step (22).

6. The force-balancing device for a printer according to claim 1, characterized in that: A rotating shaft (8) is installed between the main body (1) and the upper cover (2), and the upper cover (2) is rotatably connected to the main body (1) via the rotating shaft (8).

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