Light guide column and key combined structure

Abstract

The utility model relates to the technical field of label printers, and discloses a light guide column and key combined structure, which comprises a surface cover and a key main body, a bottom cover is assembled at the top end of the surface cover, positioning columns are fixedly connected at two ends of the top of the surface cover, a key hole is arranged in the surface cover, and a surrounding edge is arranged on the inner side wall of the key hole. According to the light guide column and key combination structure, the key hole, the surrounding edge, the positioning hole, the elastic arm and the groove are arranged, the positioning hole is in interference fit with the positioning column, the key body is installed at the top end in the surface cover through the positioning hole and the groove, the key body penetrates through the key hole, and the surrounding edge on the surface cover is wrapped by the groove, so that the light guide column and key combination structure is convenient to use. Therefore, light can be prevented from being reflected to the gap between the key main body and the surface cover, light leakage between the key main body and the surface cover can be prevented, the influence of the light on the appearance is prevented, and the problem that the appearance is easily influenced due to the fact that lamplight is easily leaked from the gap between the key and the shell is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of label printers, in particular to a light guide column and button combination structure. Background Art

[0002] A label printer is a printer that can input, edit, and typeset label contents according to one's needs through the LCD screen on the body, and then directly print out labels. Various types of labels are needed in many places such as offices, factories, warehouses, and shopping malls. In the field of label printers, indicator lights are usually required to display the printing status, and the indicator lights are close to the buttons so that the status changes of the indicator lights can be observed when the buttons are operated. If the indicator lights are close to the buttons, the light will easily leak out from the gap between the buttons and the shell, affecting the appearance.

[0003] Therefore, we propose a light guide column and key combination structure to improve the above problems. Utility Model Content

[0004] The utility model aims to provide a light guide column and key combination structure to solve the problem in the above background technology that light easily leaks out from the gap between the key and the housing, which easily affects the appearance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a light guide column and button combination structure, including a face cover and a button body, the top of the face cover is equipped with a bottom cover, the two ends of the top of the face cover are fixedly connected with positioning columns, a button hole is opened inside the face cover, the inner side wall of the button hole is provided with a surrounding edge, a button body is arranged inside the button body, a groove is arranged on the top of the button body, a push rod is arranged at the end of the button body opposite to the aforementioned top, second retaining edges are arranged at both ends of the push rod, elastic arms are arranged on both sides of the button body, and positioning holes are opened at both ends of the elastic arms.

[0006] Preferably, the button body passes through the inside of the button hole, the groove is embedded in the outside of the surrounding edge, and the positioning hole is nested in the inside of the positioning column.

[0007] Preferably, a light guide column is arranged between the second guard edges, a light incident surface is arranged at the top of the light guide column, a light emitting surface is arranged at the bottom of the light guide column, mounting grooves are arranged on both sides of the middle of the light guide column, a mounting arm is arranged at the end of the light guide column close to the light emitting surface, a light emitting hole is arranged on one side of the button hole, a first guard edge is arranged between the light emitting hole and the button hole, a U-shaped groove is arranged in the middle of the first guard edge, a buckle is arranged on the side of the first guard edge close to the light emitting hole, and a limiting rib is arranged on one side of the U-shaped groove.

[0008] Preferably, the limiting ribs, the first edge and the U-shaped groove form an installation space for the light guide column. The light guide column is clamped on both sides of the U-shaped groove through the groove, and the installation arm is clamped with the buckle on the side edge.

[0009] Preferably, a circuit board is arranged at the top end inside the bottom cover. An electric switch and an LED lamp are arranged at the bottom end of the circuit board, and the electric switch and the LED lamp are arranged close to each other.

[0010] Preferably, the electric switch is arranged at the bottom of the ejector rod, and the LED lamp is arranged at the bottom of the light incident surface.

[0011] Compared with the prior art, the beneficial effect of the present utility model is that the combination structure of the light guide column and the button not only prevents light leakage from the button gap, but also prevents the light of the light guide column from leaking out;

[0012] (1) By providing a button hole, a surrounding edge, a positioning hole, a spring arm and a groove, the positioning hole and the positioning post are in interference fit. The button body is installed at the top end inside the face cover through the positioning hole and the groove. Since the button body passes through the button hole and the groove wraps the surrounding edge on the face cover, light can be prevented from being reflected onto the gap between the button body and the face cover, thereby preventing light leakage between the button body and the face cover and preventing light from affecting the appearance;

[0013] (2) By providing a limiting rib, a first edge, an installation arm and a second edge, the first edge is arranged connected to the second edge and together with the second edge forms a semi-closed cavity to surround one end of the light incident surface. Light enters from the light incident surface and exits from the light exit surface. One end of the light incident surface is surrounded between the semi-closed cavity formed by the second edge and the first edge, so that the light leaking from the incident end of the light incident surface can be reflected back by the second edge and the first edge, preventing light leakage and improving the light guiding efficiency. The closed structure of the groove on the button body and the surrounding edge on the face cover directly blocks the light directly emitted by the LED lamp or reflected from various directions, so that no light leaks out from the gap between the button body and the button hole, further ensuring the aesthetics of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is a bottom three-dimensional structure diagram of the button body of the present utility model;

[0016] Figure 3 is a three-dimensional structure diagram of the face cover of the present utility model;

[0017] Figure 4 is an assembled structure diagram of the present utility model;

[0018] Figure 5This is a schematic three-dimensional sectional view of the bottom cover of the present utility model.

[0019] In the figure: 1, face cover; 2, limit rib; 3, light-emitting hole; 4, U-shaped groove; 5, buckle; 6, first edge; 7, key hole; 8, surrounding edge; 9, positioning post; 10, ejector rod; 11, installation groove; 12, light-incident surface; 13, installation arm; 14, light-emitting surface; 15, second edge; 16, positioning hole; 17, elastic arm; 18, key body; 19, groove; 20, bottom cover; 21, electric switch; 22, LED lamp; 23, light guide column; 24, circuit board; 25, key main body. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1: Please refer to Figures 1-5 , a combined structure of a light guide column and a key, including a face cover 1 and a key main body 25. The top end of the face cover 1 is assembled with a bottom cover 20. Positioning posts 9 are fixedly connected to both ends of the top of the face cover 1. A key hole 7 is formed inside the face cover 1. A surrounding edge 8 is provided on the inner side wall of the key hole 7. A key body 18 is provided inside the key main body 25. A groove 19 is provided at the top of the key body 18. An ejector rod 10 is provided at the end of the key body 18 opposite to the aforementioned top. Second edges 15 are provided at both ends of the ejector rod 10. Elastic arms 17 are provided on both sides of the key body 18. Positioning holes 16 are formed at both ends of the elastic arms 17;

[0022] The key body 18 passes through the inside of the key hole 7, the groove 19 is embedded outside the surrounding edge 8, and the positioning hole 16 is nested inside the positioning post 9;

[0023] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the positioning hole 16 and the groove 19 are in interference fit. The key main body 25 is installed at the top end inside the face cover 1 through the positioning hole 16 and the groove 19. Since the key body 18 passes through the key hole 7 and the groove 19 wraps the surrounding edge 8 on the face cover 1, light reflection into the gap between the key main body 25 and the face cover 1 can be prevented, thereby preventing light leakage between the key main body 25 and the face cover 1 and preventing the light from affecting the appearance.

[0024] Embodiment 2: A light guide column 23 is arranged between the second rib edges 15. An incident light surface 12 is arranged at the top end of the light guide column 23, and an emergent light surface 14 is arranged at the bottom end of the light guide column 23. Mounting grooves 11 are formed on both sides in the middle of the light guide column 23. A mounting arm 13 is arranged at one end of the light guide column 23 close to the emergent light surface 14. A light-emitting hole 3 is formed on one side of the key hole 7. A first rib edge 6 is arranged between the light-emitting hole 3 and the key hole 7. A U-shaped groove 4 is formed in the middle of the first rib edge 6. A buckle 5 is arranged on one side of the first rib edge 6 close to the light-emitting hole 3. A limiting rib 2 is arranged on one side of the U-shaped groove 4;

[0025] The limiting rib 2, the first rib edge 6 and the U-shaped groove 4 form an installation space for the light guide column 23. The light guide column 23 is clamped on both sides of the U-shaped groove 4 through a groove 19. The mounting arm 13 is clamped with the buckle 5 on the side. A circuit board 24 is arranged at the top end inside the bottom cover 20. An electric switch 21 and an LED lamp 22 are arranged at the bottom end of the circuit board 24. The electric switch 21 and the LED lamp 22 are arranged close to each other. The electric switch 21 is arranged at the bottom of the ejector rod 10, and the LED lamp 22 is arranged at the bottom of the incident light surface 12;

[0026] Specifically, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, the first rib edge 6 is arranged connected to the second rib edge 15 and together with the second rib edge 15 forms a semi-closed cavity to surround one end of the incident light surface 12. Light enters from the incident light surface 12 and exits from the emergent light surface 14. One end of the incident light surface 12 is surrounded between the semi-closed cavity formed by the second rib edge 15 and the first rib edge 6, so that the light leaking from one incident end of the incident light surface 12 can be reflected back by the second rib edge 15 and the first rib edge 6, preventing light leakage and improving the light guiding efficiency. The groove 19 on the key body 18 and the surrounding edge 8 on the face cover 1 in the closed structure directly block the light directly emitted by the LED lamp 22 or reflected from all directions, so that no light leaks out from the gap between the key body 18 and the key hole 7, further ensuring the aesthetics of the product.

[0027] Working principle: When the utility model is in use, the positioning hole 16 and the positioning post 9 are in interference fit. The button body 25 is installed at the top inside the face cover 1 through the positioning hole 16 and the groove 19. Since the button body 18 passes through the button hole 7 and the groove 19 wraps the peripheral edge 8 on the face cover 1, light reflection to the gap between the button body 25 and the face cover 1 can be prevented, thereby preventing light leakage between the button body 25 and the face cover 1 and preventing the light from affecting the appearance. The face cover 1 and the bottom cover 20 are installed together. The first baffle 6 is connected to and arranged with the second baffle 15, and together with the second baffle 15, they form a semi-closed cavity to surround one end of the light incident surface 12. Light enters from the light incident surface 12 and exits from the light exit surface 14. One end of the light incident surface 12 is surrounded between the semi-closed cavity formed by the second baffle 15 and the first baffle 6, so that the light leaking from the incident end of the light incident surface 12 can be reflected back by the second baffle 15 and the first baffle 6, preventing light leakage and improving the light guiding efficiency. The groove 19 on the button body 18 and the closed structure of the peripheral edge 8 on the face cover 1 directly block the light directly emitted by the LED lamp 22 or reflected from various directions, so that no light leaks out from the gap between the button body 18 and the button hole 7, further ensuring the aesthetics of the product.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A light guide column and key combination structure, comprising a cover (1) and a key body (25), characterized in that: The top of the surface cover (1) is equipped with a bottom cover (20), and the two ends of the top of the surface cover (1) are fixedly connected with positioning columns (9). A button hole (7) is provided inside the surface cover (1), and the inner wall of the button hole (7) is provided with a surrounding edge (8). A button body (18) is provided inside the button body (25), and a groove (19) is provided at the top of the button body (18). A push rod (10) is provided at the end of the button body (18) opposite to the aforementioned top, and second retaining edges (15) are provided at both ends of the push rod (10). Elastic arms (17) are provided on both sides of the button body (18), and positioning holes (16) are provided at both ends of the elastic arms (17).

2. The light guide column and key combination structure according to claim 1, characterized in that: The button body (18) passes through the inside of the button hole (7), the groove (19) is embedded in the outside of the surrounding edge (8), and the positioning hole (16) is nested in the outside of the positioning column (9).

3. The light guide column and key combination structure according to claim 1, characterized in that: A light guide column (23) is arranged between the second retaining edges (15); a light entrance surface (12) is arranged at the top end of the light guide column (23); a light exit surface (14) is arranged at the bottom end of the light guide column (23); mounting grooves (11) are arranged on both sides of the middle of the light guide column (23); a mounting arm (13) is arranged at one end of the light guide column (23) close to the light exit surface (14); a light exit hole (3) is arranged on one side of the key hole (7); a first retaining edge (6) is arranged between the light exit hole (3) and the key hole (7); a U-shaped groove (4) is arranged in the middle of the first retaining edge (6); a buckle (5) is arranged on one side of the first retaining edge (6) close to the light exit hole (3); and a limiting rib (2) is arranged on one side of the U-shaped groove (4).

4. The light guide column and key combination structure according to claim 3, characterized in that: The limiting rib (2), the first retaining edge (6) and the U-shaped groove (4) form a mounting space for the light guide column (23); the light guide column (23) is clamped on both sides of the U-shaped groove (4) through the mounting groove (11); and the mounting arm (13) is clamped on the side buckle (5).

5. The light guide column and key combination structure according to claim 1, characterized in that: A circuit board (24) is arranged at the top end of the bottom cover (20), and an electric switch (21) and an LED light (22) are arranged at the bottom end of the circuit board (24). The electric switch (21) and the LED light (22) are arranged close to each other.

6. The light guide column and key combination structure according to claim 5, characterized in that: The electric switch (21) is arranged at the bottom of the top rod (10), and the LED lamp (22) is arranged at the bottom of the light incident surface (12).

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