Plastic panel key
By designing the combination of limit port, rubber ring and elastic film in the plastic panel button, the problem of water vapor infiltration caused by gaps in traditional plastic panel buttons is solved, achieving higher sealing and convenient maintenance.
Patent Information
- Application Number
- CN202421702105.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The gaps in traditional plastic panel buttons make water vapor easy to penetrate into the equipment, resulting in damage to the equipment settings.
A plastic panel button is designed, including a base plate, a middle-layer board and a cover plate. The middle-layer board is equipped with a limiting port and a rubber ring. The middle-layer board is tightened by fixing screws to squeeze the fixing ring and rubber ring to enhance the sealing property, and assist in the resetting of the pressing block and water barrier with the help of the elastic membrane.
Effectively avoid water vapor entering the equipment, enhance sealing, and at the same time, the independent installation of the elastic membrane is easy to replace and reduce maintenance costs.
Smart Images
Figure CN222785199U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of panel buttons, and more specifically, to a plastic panel button. Background Art
[0002] Plastic panel keys are a common mechanical component, mainly composed of a key body made of high-strength plastic, contacts responsible for circuit connection, gaskets to reduce noise and increase durability, and conductive films to transmit key signals. This type of key is widely used in various equipment and products, such as home appliances, industrial control equipment, automation equipment, medical equipment, automotive parts, and aerospace equipment, playing a vital role.
[0003] However, when using traditional plastic panel buttons, there are gaps between the buttons, and water vapor can easily penetrate into the device through these gaps, causing damage to the device settings and affecting the normal operation of the device. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a plastic panel button. The technical problem to be solved by the present invention is that water vapor can easily enter the interior of the device through the gaps of the traditional plastic panel buttons, thereby causing damage to the device.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic panel key, comprising a bottom plate, a middle plate and a cover plate, and the middle plate is located between the bottom plate and the cover plate, the bottom plate is provided with a plurality of limiting openings, and the plurality of limiting openings are step openings, rubber rings are placed inside the plurality of limiting openings, fixing rings are placed on the tops of the plurality of rubber rings, elastic membranes are fixedly connected inside the plurality of fixing rings, conductive rubbers are fixedly connected to the bottoms of the plurality of elastic membranes, a plurality of first through openings are provided inside the middle plate, and the first through openings correspond to the limiting openings, pressing blocks are movably sleeved inside the plurality of first through openings, a plurality of second through openings are provided inside the cover plate, and the plurality of pressing blocks are movably sleeved inside the corresponding second through openings, key caps are installed on the tops of the plurality of pressing blocks, a plurality of fixing screws are rotatably connected inside the cover plate, and the plurality of fixing screws are threadedly sleeved inside the bottom plate.
[0006] like Figure 1-5 As shown, the specific implementation method is: by tightening multiple fixing screws, the middle layer plate can be squeezed against the fixing ring, and then the rubber ring is squeezed through the fixing ring to enhance the airtightness and prevent water vapor from entering the interior of the device. The elastic membrane provided can assist in resetting the pressing block and also play a role in water isolation.
[0007] In a preferred embodiment, a limiting ring is fixedly connected to the outside of the pressing block, and the diameter of the limiting ring is equal to the inner diameter of the first through hole, and the inner diameter of the second through hole is equal to the diameter of the pressing block.
[0008] The setting of the limiting ring can make the pressing block slide more stably on the middle plate. At the same time, the second through hole can limit the limiting ring to prevent the pressing block from escaping from the second through hole.
[0009] In a preferred embodiment, a threaded hole is formed on the top of the pressing block, a stud is fixedly connected to the bottom of the key cap, and the stud is threadedly sleeved inside the threaded hole.
[0010] The stud is screwed into the threaded hole by rotating the key cap, so that the key cap can be replaced and installed conveniently.
[0011] In a preferred embodiment, three limiting blocks are fixedly connected to the outside of the pressing block, three limiting grooves are formed on the inner wall of the second through opening, and the three limiting blocks are slidably connected to the inside of the three limiting grooves respectively.
[0012] By cooperating with the limit slot and the limit block, the rotation of the pressing block can be limited, thereby facilitating the installation of the key cap.
[0013] In a preferred embodiment, a return spring is movably sleeved outside the pressing block, and the return spring is located between the key cap and the cover plate.
[0014] The pressing block can be pushed to return to its original position by a reset spring.
[0015] Technical effects and advantages of the utility model:
[0016] By tightening multiple fixing screws, the middle layer plate can be squeezed against the fixing ring, and then the fixing ring can be used to squeeze the rubber ring to enhance the airtightness and prevent water vapor from entering the interior of the equipment. The elastic membrane can assist in resetting the pressing block and also serve as a water barrier. The independently arranged elastic membrane can also be easily replaced when the elastic membrane is damaged, saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0019] Figure 3 It is a schematic diagram of the overall explosion surface structure of the utility model.
[0020] Figure 4 This is a schematic diagram of the pressing block structure of the utility model.
[0021] Figure 5 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.
[0022] The accompanying drawings are marked as follows: 1. bottom plate; 2. limit opening; 3. rubber ring; 4. fixing ring; 5. elastic membrane; 6. middle plate; 7. pressing block; 8. limit ring; 9. limit block; 10. first through opening; 11. cover plate; 12. second through opening; 13. limit groove; 14. key cap; 15. stud; 16. threaded hole; 17. reset spring; 18. fixing screw; 19. conductive rubber. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model provides a plastic panel key, comprising a bottom plate 1, a middle plate 6 and a cover plate 11, wherein the middle plate 6 is located between the bottom plate 1 and the cover plate 11, a plurality of limit openings 2 are opened inside the bottom plate 1, and the plurality of limit openings 2 are step openings, a rubber ring 3 is placed inside the plurality of limit openings 2, a fixing ring 4 is placed on the top of the plurality of rubber rings 3, an elastic film 5 is fixedly connected inside the plurality of fixing rings 4, a conductive rubber 19 is fixedly connected at the bottom of the plurality of elastic films 5, the middle plate 6 is provided with a plurality of first through openings 10, and the first through openings 10 correspond to the limit openings 2, and the interiors of the plurality of first through openings 10 are all movably sleeved with pressing blocks 7, the interior of the cover plate 11 is provided with a plurality of second through openings 12, and the plurality of pressing blocks 7 are respectively movably sleeved in the interiors of the corresponding second through openings 12, and key caps 14 are installed on the tops of the plurality of pressing blocks 7, and the interior of the cover plate 11 is rotatably connected with a plurality of fixing screws 18, and the plurality of fixing screws 18 are all threadedly sleeved in the interior of the base plate 1.
[0025] like Figure 1-5 As shown, the specific implementation method is: by tightening a plurality of fixing screws 18, the middle plate 6 can squeeze the fixing ring 4, and then the fixing ring 4 squeezes the rubber ring 3 to enhance the airtightness and prevent water vapor from entering the interior of the device. The elastic membrane 5 provided can assist in resetting the pressing block 7 and also play a role in water isolation. The independently provided elastic membrane 5 can also be easily replaced when the elastic membrane 5 is damaged, saving maintenance costs.
[0026] The outside of the pressing block 7 is fixedly connected to a limiting ring 8 , and the diameter of the limiting ring 8 is equal to the inner diameter of the first through hole 10 , and the inner diameter of the second through hole 12 is equal to the diameter of the pressing block 7 .
[0027] like Figure 1-5 As shown, the specific implementation is: the setting of the limiting ring 8 can make the pressing block 7 slide more stably on the middle plate 6. At the same time, the second through hole 12 can limit the limiting ring 8 to prevent the pressing block 7 from escaping from the second through hole 12.
[0028] A threaded hole 16 is formed on the top of the pressing block 7 , a stud 15 is fixedly connected to the bottom of the key cap 14 , and the stud 15 is threadedly sleeved inside the threaded hole 16 .
[0029] like Figure 3-5 As shown, the specific implementation is: by rotating the key cap 14 so that the stud 15 is screwed into the threaded hole 16, the key cap 14 can be easily replaced and installed.
[0030] The outside of the pressing block 7 is fixedly connected with three limiting blocks 9 , the inner wall of the second through opening 12 is provided with three limiting grooves 13 , and the three limiting blocks 9 are slidably connected to the inside of the three limiting grooves 13 .
[0031] like Figure 3-4 As shown, the specific implementation is: through the cooperation of the limiting groove 13 and the limiting block 9, the rotation of the pressing block 7 can be limited, so that the key cap 14 is easily installed.
[0032] The outer part of the pressing block 7 is movably sleeved with a return spring 17 , and the return spring 17 is located between the key cap 14 and the cover plate 11 .
[0033] like Figure 1-5 As shown, the specific implementation is: the reset spring 17 can push the pressing block 7 to reset.
[0034] Working principle of this utility model:
[0035] By tightening a plurality of fixing screws 18, the middle plate 6 can be squeezed by the fixing ring 4, and then the rubber ring 3 can be squeezed by the fixing ring 4 to enhance the airtightness and prevent water vapor from entering the interior of the device. The elastic membrane 5 provided can assist in resetting the pressing block 7 and also play a role of water isolation. The independently provided elastic membrane 5 can also be conveniently replaced when the elastic membrane 5 is damaged, thus saving maintenance costs.
[0036] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;
[0037] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A plastic panel key, comprising a bottom plate (1), a middle plate (6) and a cover plate (11), wherein the middle plate (6) is located between the bottom plate (1) and the cover plate (11), characterized in that: The bottom plate (1) is provided with a plurality of limiting openings (2) inside, and the plurality of limiting openings (2) are all step openings, a rubber ring (3) is placed inside the plurality of limiting openings (2), a fixing ring (4) is placed on the top of the plurality of rubber rings (3), an elastic membrane (5) is fixedly connected inside the plurality of fixing rings (4), and a conductive rubber (19) is fixedly connected to the bottom of the plurality of elastic membranes (5), and a plurality of first through openings (10) are provided inside the middle plate (6), and the first through openings (10) are Corresponding to the limit opening (2), a plurality of the first through openings (10) are movably sleeved with a pressing block (7), a plurality of second through openings (12) are opened inside the cover plate (11), and a plurality of pressing blocks (7) are movably sleeved inside the corresponding second through openings (12), a key cap (14) is installed on the top of a plurality of the pressing blocks (7), a plurality of fixing screws (18) are rotatably connected inside the cover plate (11), and the plurality of fixing screws (18) are threadedly sleeved inside the base plate (1).
2. The plastic panel key according to claim 1, characterized in that: The outside of the pressing block (7) is fixedly connected to a limiting ring (8), and the diameter of the limiting ring (8) is equal to the inner diameter of the first through hole (10), and the inner diameter of the second through hole (12) is equal to the diameter of the pressing block (7).
3. The plastic panel key according to claim 1, characterized in that: A threaded hole (16) is provided on the top of the pressing block (7), a stud (15) is fixedly connected to the bottom of the key cap (14), and the stud (15) is threadedly sleeved inside the threaded hole (16).
4. The plastic panel key according to claim 1, characterized in that: The outside of the pressing block (7) is fixedly connected with three limit blocks (9), the inner wall of the second through opening (12) is provided with three limit grooves (13), and the three limit blocks (9) are slidably connected to the inside of the three limit grooves (13) respectively.
5. The plastic panel key according to claim 1, characterized in that: The outer part of the pressing block (7) is movably sleeved with a return spring (17), and the return spring (17) is located between the key cap (14) and the cover plate (11).