Touch sensitive keyboard fixing structure of electronic coded lock

Abstract

The utility model relates to the field of safe box accessories, and discloses a touch sensing keyboard fixing structure of an electronic coded lock. The touch screen keyboard comprises a touch screen keyboard body, a shell and a limiting frame, a convex edge is arranged on the peripheral wall of the touch screen keyboard body, a mounting groove is formed in one side of the shell, an abutting groove is formed in the groove bottom of the mounting groove, a screen groove is formed in the groove bottom of the abutting groove, the screen groove penetrates through the shell, the touch screen keyboard body is inserted into the screen groove, and the convex edge is inserted into the abutting groove and makes contact with the groove bottom of the abutting groove. The limiting frame is suitable for limiting the convex edge in the abutting groove, a clamping hook is arranged at the groove bottom of the mounting groove, and the clamping hook is suitable for limiting the limiting frame at the groove bottom of the mounting groove so as to fix the touch screen keyboard. According to the utility model, the limiting frame can limit the convex edge in the abutting groove to fix the touch screen keyboard, and the limiting frame is limited on the shell through the clamping hook, so that the convenience of installing and fixing the touch screen keyboard is improved, the operation is simple, and the working efficiency can be improved; and the stability of fixing the touch screen keyboard is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of safe accessories, and more specifically, to a fixing structure for a touch-sensitive keyboard of an electronic combination lock. Background Technology

[0002] Electronic combination locks on safes typically feature a touchscreen keypad. Users simply activate the touchscreen to display numbers, then enter the correct combination. However, installing the touchscreen keypad requires mounting it onto a housing with stepped grooves. The keypad and circuit board are housed within these grooves. Current installation methods involve applying a layer of flexible adhesive around one side of the keypad, then attaching it to the bottom of the stepped groove. Pressure is then applied, and a certain amount of time is allowed for the keypad to firmly adhere to the housing. This entire installation process is cumbersome and impacts production efficiency. Utility Model Content

[0003] To address at least one of the aforementioned problems, this utility model provides a fixed structure for a touch-sensitive keyboard on an electronic combination lock, comprising a touch-sensitive keyboard, a housing, and a limiting frame. The outer peripheral wall of the touch-sensitive keyboard has a protruding edge. One side of the housing has a mounting groove, the bottom of which has an abutment groove. The bottom of the abutment groove has a screen groove that penetrates the housing. The touch-sensitive keyboard is inserted into the screen groove. The protruding edge is inserted into the abutment groove and contacts the bottom of the abutment groove. The inner dimension of the limiting frame is smaller than the opening of the abutment groove. The limiting frame is adapted to confine the protruding edge within the abutment groove. The bottom of the mounting groove has a hook, which is located outside the limiting frame and adapted to confine the limiting frame to the bottom of the mounting groove. Multiple hooks are provided and are arranged circumferentially at intervals outside the limiting frame.

[0004] When installing the limiting frame, simply apply pressure to the bottom of the mounting groove to the limiting frame to cause the multiple hooks to elastically deform and move out of position. When the limiting frame abuts against the bottom of the mounting groove, the multiple hooks return to their initial state and limit the limiting frame.

[0005] Optionally, the bottom of the abutment groove is provided with a first flexible layer, and the protruding edge abuts against the first flexible layer.

[0006] Optionally, the limiting frame is provided with a second flexible layer on the side near the convex edge, and the second flexible layer abuts against the convex edge.

[0007] Optionally, the bottom of the mounting groove is provided with a positioning post, the limiting frame is provided with a positioning hole, the positioning post is inserted into the positioning hole, multiple positioning posts are spaced apart, and the number of positioning holes is the same as the number of positioning posts and corresponds one-to-one.

[0008] Optionally, the hook includes a connecting plate and a snap-fit ​​protrusion. The connecting plate is fixedly disposed at the bottom of the mounting groove, and the snap-fit ​​protrusion is fixedly disposed on the side of the connecting plate near the limiting frame. One side of the limiting frame abuts against the bottom of the mounting groove, and the other side abuts against the snap-fit ​​protrusion.

[0009] Optionally, the snap-fit ​​protrusion has a pressing slope on the side away from the bottom of the mounting groove. When the limiting frame is installed, the outer edge of the limiting frame abuts against the pressing slope to drive the connecting plate to undergo elastic deformation.

[0010] Optionally, the bottom of the mounting groove is provided with a plurality of threaded sleeves at intervals. The threaded sleeves are suitable for mounting circuit boards. The side of the threaded sleeve away from the bottom of the mounting groove is higher than the side of the limiting frame away from the bottom of the mounting groove.

[0011] Optionally, the screen groove has a sealing ring groove on its wall, and a sealing ring is provided in the sealing ring groove. The sealing ring is fitted onto the touch screen keyboard and fits tightly against the touch screen keyboard.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] 1. When installing the touch screen keyboard, simply place the touch screen keyboard into the screen slot, and the protruding edge will abut against the bottom of the abutment slot. When fixing the touch screen keyboard, simply apply a pressure to the bottom of the mounting slot to make the hook limit the limiting plate in the mounting slot, and the limiting frame will limit the protruding edge in the abutment slot to fix the touch screen keyboard. The operation is simple and convenient and can improve work efficiency.

[0014] 2. After multiple positioning pins are inserted into the corresponding positioning holes, the limiting frame can be further limited, making it less likely for the limiting frame to move and produce abnormal noise. At the same time, it also improves the stability of the limiting frame in fixing the touch screen keyboard.

[0015] 3. When the limiting frame and the bottom of the abutment groove cooperate to clamp and limit the convex edge, the first flexible layer and the second flexible layer respectively abut against the two sides of the convex edge to form flexible contact, so that the convex edge is not easy to break during the clamping and pressing process.

[0016] 4. The sealing ring improves the sealing and waterproofing of the connection between the touchscreen keyboard and the housing, making it less likely for water to enter the housing and affect the circuit board. Attached Figure Description

[0017] Figure 1 This is an exploded view of the touchscreen keyboard, housing, and limiting frame in an embodiment of the present invention. Figure 1 ;

[0018] Figure 2 This is a cross-sectional view of the touchscreen keyboard, housing, and limiting frame in an exploded state in an embodiment of this utility model;

[0019] Figure 3 The exploded structure of the touchscreen keyboard, housing, and limiting frame in this embodiment of the utility model. Figure 2 ;

[0020] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0021] Figure 5 This is a cross-sectional view of the touchscreen keyboard, housing, and limiting frame in the embodiment of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Touchscreen keyboard; 11. Raised edge; 2. Housing; 21. Mounting groove; 22. Abutment groove; 23. Screen groove; 24. Hook; 241. Connecting plate; 242. Snap-fit ​​protrusion; 243. Extrusion bevel; 25. Positioning post; 26. First flexible layer; 27. Threaded sleeve; 28. Sealing ring; 3. Limiting frame; 31. Positioning hole; 32. Second flexible layer. Detailed Implementation

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0026] The following is combined with Figure 1-5 This application is described in further detail.

[0027] This utility model embodiment provides a fixing structure for a touch-sensitive keyboard of an electronic combination lock, see reference. Figure 1 and Figure 2The electronic combination lock touch-sensitive keyboard fixing structure includes a touch screen keyboard 1, a housing 2, and a limiting frame 3. The touch screen keyboard 1 can be pressed and limited onto the housing 2 by the limiting frame 3, and the limiting frame 3 can be limited onto the housing 2 by a snap-fit ​​structure. When fixing the touch screen keyboard 1 onto the housing 2, it is only necessary to install the limiting frame 3 onto the housing 2 by the snap-fit ​​structure, which is simple and convenient to operate.

[0028] The outer peripheral wall of the touchscreen keyboard 1 is integrally formed with a raised edge 11. The thickness of the raised edge 11 is less than the thickness of the touchscreen keyboard 1, and the side of the raised edge 11 near the rear of the touchscreen keyboard 1 is flush with the rear of the touchscreen keyboard 1. The front of the touchscreen keyboard 1 is the operation surface. When the touchscreen keyboard 1 is lit up, it will display numbers for password input.

[0029] Reference Figure 2 and Figure 3 The outer casing 2 has a mounting groove 21 on one side, and an abutment groove 22 at the bottom of the mounting groove 21. The bottom of the abutment groove 22 has a screen groove 23 that penetrates the outer casing 2. The touch screen keyboard 1 is inserted into the screen groove 23, and the protruding edge 11 is inserted into the abutment groove 22 and contacts the bottom of the abutment groove 22, so that the touch screen keyboard 1 is limited and does not easily detach from the screen groove 23 from the direction away from the opening of the mounting groove 21.

[0030] The inner dimension of the limiting frame 3 is smaller than the size of the abutment groove 22, that is, the inner hole size of the limiting frame 3 is smaller than the size of the abutment groove 22. Therefore, after the limiting frame 3 is snapped into the outer shell 2, it can limit the protruding edge 11 to be located in the abutment groove 22, making it difficult for the touch screen keyboard 1 to move from the direction close to the mounting groove 21 and to detach from the screen groove 23, thereby achieving the fixation of the touch screen keyboard 1.

[0031] Reference Figure 2 and Figure 3 The bottom of the mounting groove 21 is integrally formed with hooks 24, which are located outside the limiting frame 3. Multiple hooks 24 are arranged circumferentially around the outside of the limiting frame 3. After the limiting frame 3 is engaged by the multiple hooks 24, it moves towards the opening of the mounting groove 21 and is limited. The protruding edge 11 is completely limited by the clamping of the limiting frame 3 and the bottom of the abutment groove 22, achieving fixed installation. When installing the limiting frame 3, only pressure needs to be applied to the bottom of the mounting groove 21 to cause the multiple hooks 24 to elastically deform and move out of position. When the limiting frame 3 abuts against the bottom of the mounting groove 21, the multiple hooks 24 return to their initial state and limit the limiting frame 3, making the operation simple and convenient.

[0032] Combination Figure 2 Reference Figure 3 and Figure 4Specifically, the hook 24 includes a connecting plate 241 and a snap-fit ​​protrusion 242. The connecting plate 241 is integrally formed into the bottom of the mounting groove 21, and the snap-fit ​​protrusion 242 is fixedly disposed on the side of the connecting plate 241 near the limiting frame 3. When the limiting frame 3 is in the state of pressing and fixing the protrusion, one side of the limiting frame 3 abuts against the bottom of the mounting groove 21, and the other side abuts against the bottom of the snap-fit ​​protrusion 242, so that the hook 24 can snap-fit ​​and limit the limiting frame 3.

[0033] The snap-fit ​​protrusion 242 has a pressing slope 243 on the side away from the bottom of the mounting groove 21. When the limiting frame 3 is installed, the outer edge of the limiting frame 3 near the touch screen keyboard 1 abuts against the pressing slope 243. Then, pressure is applied to the limiting frame 3 to move it closer to the touch screen keyboard 1, which will drive the snap-fit ​​protrusion 242 to cause the connecting plate 241 to undergo elastic deformation and make room so that the limiting frame 3 is located on the side of the snap-fit ​​protrusion 242 near the touch screen keyboard 1.

[0034] Combination Figure 2 Reference Figure 3 and Figure 4 The connecting plate 241 is spaced a certain distance from the outer wall of the limiting frame 3 so that the limiting frame 3 can pass through the snap-fit ​​protrusion 242 relatively smoothly during installation. The bottom of the mounting groove 21 is provided with positioning posts 25, and the limiting frame 3 is provided with positioning holes 31. The positioning posts 25 are inserted into the positioning holes 31. Multiple positioning posts 25 are spaced apart, and the number of positioning holes 31 is the same as the number of positioning posts 25 and corresponds one-to-one. This arrangement will prevent the limiting frame 3 from shaking and making abnormal noise due to the gap between the connecting plate 241 and the limiting frame 3 after being snapped and limited by the snap-fit ​​protrusion 242.

[0035] Reference Figure 2 and Figure 5 The bottom of the abutment groove 22 has a first annular groove, and a first annular flexible layer 26 is placed inside the first annular groove. The screen groove 23 is located inside the first flexible layer 26. The side of the first flexible layer 26 near the opening of the first annular groove protrudes from the first annular groove and abuts against the convex plate, so that the contact between the convex edge 11 and the bottom of the abutment groove 22 is a flexible contact, and the convex edge 11 is not easily cracked or broken during the process of the limiting frame 3 pressing the convex edge 11.

[0036] A second annular groove is formed on the side of the limiting frame 3 near the protruding edge 11. A second annular flexible layer 32 is placed in the second annular groove. The side of the second flexible layer 32 near the protruding edge 11 protrudes out of the second annular groove and abuts against the protruding edge 11. Similarly, the contact between the limiting frame 3 and the protruding edge 11 will also become a flexible contact through the second flexible layer 32. During the process of the limiting frame 3 pressing the protruding edge 11, it is not easy for the protruding edge 11 to crack or break.

[0037] In this embodiment, the first flexible layer 26 and the second flexible layer 32 are preferably both made of rubber material. In other embodiments, the first flexible layer 26 and the second flexible layer 32 can also be made of foam material.

[0038] Combination Figure 2 Reference Figure 3 and Figure 5 The mounting groove 21 has multiple threaded sleeves 27 integrally formed at intervals at the bottom. The circuit board connected to the touch screen keyboard 1 can be bolted to the end of the threaded sleeve 27 near the opening of the mounting groove 21. The side of the multiple threaded sleeves 27 away from the bottom of the mounting groove 21 is higher than the side of the limiting frame 3 away from the bottom of the mounting groove 21, so that the circuit board and the touch screen keyboard 1 can be arranged at intervals, which facilitates air circulation and heat dissipation.

[0039] The screen groove 23 has a sealing ring groove on its groove wall, and a sealing ring 28 is provided in the sealing ring groove. The sealing ring 28 is fitted on the touch screen keyboard 1 and fits tightly with the touch screen keyboard 1, which improves the sealing and waterproof performance of the connection between the touch screen keyboard 1 and the housing 2, making it less likely for water to enter the interior of the housing 2 and affect the circuit board.

[0040] The implementation principle of the electronic combination lock touch-sensitive keyboard fixing structure in this application embodiment is as follows: First, the touch screen keyboard 1 is inserted into the screen groove 23 and the protruding edge 11 is inserted into the abutment groove 22 and contacts the first flexible layer 26. Then, the limiting frame 3 is placed into the mounting groove 21 and the outer edge of the limiting frame 3 near the touch screen keyboard 1 abuts against the extrusion slope 243. Then, pressure is applied to the limiting frame 3 to move it closer to the touch screen keyboard 1, which causes the driving snap-fit ​​protrusion 242 to drive the connecting plate 241 to undergo elastic deformation and make room so that the limiting frame 3 is located on the side of the snap-fit ​​protrusion 242 close to the touch screen keyboard 1. At this time, the protruding edge 11 is clamped and limited by the limiting frame 3 and the bottom of the abutment groove 22. The first flexible layer 26 and the second flexible layer 32 abut against the opposite sides of the protruding edge 11, thereby achieving the fixed positioning of the touch screen keyboard 1.

[0041] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A fixing structure for a touch-sensitive keyboard of an electronic combination lock, characterized in that: The device includes a touchscreen keyboard (1), a housing (2), and a limiting frame (3). The outer peripheral wall of the touchscreen keyboard (1) is provided with a protruding edge (11). One side of the housing (2) is provided with a mounting groove (21). The bottom of the mounting groove (21) is provided with an abutment groove (22). The bottom of the abutment groove (22) is provided with a screen groove (23). The screen groove (23) penetrates the housing (2). The touchscreen keyboard (1) is inserted into the screen groove (23). The protruding edge (11) is inserted into the abutment groove (22) and is perpendicular to the abutment groove (3). 22) The bottom of the groove is in contact with the limiting frame (3), the inner dimension of the limiting frame (3) is smaller than the size of the groove opening of the abutting groove (22), the limiting frame (3) is adapted to limit the protruding edge (11) in the abutting groove (22), the bottom of the mounting groove (21) is provided with a hook (24), the hook (24) is located outside the limiting frame (3) and is adapted to limit the limiting frame (3) in the bottom of the mounting groove (21), there are multiple hooks (24), and multiple hooks (24) are arranged circumferentially at intervals outside the limiting frame (3); When installing the limiting frame (3), it is only necessary to apply pressure to the bottom of the mounting groove (21) to the limiting frame (3) to cause the multiple hooks (24) to elastically deform and move out of place. When the limiting frame (3) abuts against the bottom of the mounting groove (21), the multiple hooks (24) return to their initial state and limit the limiting frame (3).

2. The electronic combination lock touch-sensitive keyboard fixing structure according to claim 1, characterized in that: The bottom of the abutment groove (22) is provided with a first flexible layer (26), and the protruding edge (11) abuts against the first flexible layer (26).

3. The electronic combination lock touch-sensitive keyboard fixing structure according to claim 2, characterized in that: The limiting frame (3) has a second flexible layer (32) on the side near the convex edge (11), and the second flexible layer (32) abuts against the convex edge (11).

4. The electronic combination lock touch-sensitive keyboard fixing structure according to claim 3, characterized in that: The bottom of the mounting groove (21) is provided with a positioning post (25), and the limiting frame (3) is provided with a positioning hole (31). The positioning post (25) is inserted into the positioning hole (31). Multiple positioning posts (25) are spaced apart. The number of positioning holes (31) is the same as the number of positioning posts (25) and they correspond one-to-one.

5. The electronic combination lock touch-sensitive keyboard fixing structure according to claim 1, characterized in that: The hook (24) includes a connecting plate (241) and a snap-fit ​​protrusion (242). The connecting plate (241) is fixedly disposed at the bottom of the mounting groove (21). The snap-fit ​​protrusion (242) is fixedly disposed on the side of the connecting plate (241) near the limiting frame (3). One side of the limiting frame (3) abuts against the bottom of the mounting groove (21), and the other side abuts against the snap-fit ​​protrusion (242).

6. The electronic combination lock touch-sensitive keyboard fixing structure according to claim 5, characterized in that: The snap-fit ​​protrusion (242) has an extrusion slope (243) on the side away from the bottom of the mounting groove (21). When the limiting frame (3) is installed, the outer edge of the limiting frame (3) abuts against the extrusion slope (243) to drive the connecting plate (241) to undergo elastic deformation.

7. The electronic combination lock touch-sensitive keyboard fixing structure according to claim 1, characterized in that: The mounting groove (21) has a plurality of threaded sleeves (27) spaced apart at the bottom. The threaded sleeves (27) are suitable for mounting circuit boards. The side of the threaded sleeve (27) away from the bottom of the mounting groove (21) is higher than the side of the limiting frame (3) away from the bottom of the mounting groove (21).

8. The electronic combination lock touch-sensitive keyboard fixing structure according to claim 1, characterized in that: The screen groove (23) has a sealing ring groove on its groove wall, and a sealing ring (28) is provided in the sealing ring groove. The sealing ring (28) is sleeved on the touch screen keyboard (1) and fits tightly with the touch screen keyboard (1).

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