Self-adaptive key floating mechanism

Abstract

The utility model provides a self-adaptive key floating mechanism, which solves the problem that the traditional key can be configured only by opening an end cover when operating and setting an instrument, and the operation is inconvenient, and mainly comprises a transmitter shell, the top of the transmitter shell is sleeved with a rotary downward-pressing end cover, and the end cover is provided with an opening. The floating mechanism is located between the end cover and the transmitter shell and comprises a capacitor key plate, a key module fixing plate and a floating piece located between the capacitor key plate and the key module fixing plate, the end cover is attached to the capacitor key plate after being rotated and pressed downwards, the key module fixing plate is fixedly connected with the transmitter, and the floating piece is located between the capacitor key plate and the key module fixing plate. And the floating piece is movably fixed with the key module fixing plate and is used for flexibly jacking the capacitor key plate upwards in the axial direction of the end cover.

Description

Technical Field

[0001] This utility model relates to the field of transmitter keypad technology, and in particular to an adaptive keypad floating mechanism. Background Technology

[0002] Existing transmitter keypads are fixed to the transmitter housing with screws, and microswitches are soldered onto the keypad, making them traditional mechanical keys. Configuration requires opening the end cover, which is extremely inconvenient.

[0003] Meanwhile, the instrument will be used in some explosive environments. Opening the end cover while the power is on does not comply with the on-site safety operating procedures and will cause unnecessary trouble for the on-site configuration of the instrument. Therefore, we propose an adaptive button floating mechanism to solve the above problems. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies. This invention proposes an adaptive button floating mechanism. It enables operation of the instrument without opening the cover and can be directly configured on the instrument even in flammable and explosive environments, thus expanding the instrument's application range.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technology: An adaptive button floating mechanism includes a transmitter housing. A rotary, downward-pressing end cap is fitted onto the top of the transmitter housing. The floating mechanism is located between the end cap and the transmitter housing. It includes a capacitive button plate, a button module fixing plate, and a floating member located between the capacitive button plate and the button module fixing plate. After the end cap is rotated and pressed down, it fits against the capacitive button plate. The button module fixing plate is fixedly connected to the transmitter. The floating member is movably fixed to the button module fixing plate, and is used to flexibly push the capacitive button plate upwards axially with the end cap.

[0006] Furthermore, the floating component includes multiple guide posts, which are vertically and evenly distributed on the top of the button module fixing plate. The bottom end of each guide post passes through the button module fixing plate and is embedded with a guide post anti-loosening screw for limiting. The top end of each guide post is soldered to the bottom end of the capacitive button plate. Each guide post is also covered with a compression spring on its outer wall, and the bottom end of the compression spring is connected and fixed to the button module fixing plate.

[0007] Furthermore, a flat observation glass is provided between the top of the capacitive keypad and the end cover, and the inner bottom of the end cover and the observation glass are fixed together as a whole by adhesive sealing.

[0008] Furthermore, the observation glass comes into close contact with the capacitive keypad after the end cap is rotated and pressed down.

[0009] Furthermore, the capacitive button board, guide post, and compression spring are fixed as a whole, and the axial direction of the guide post is limited by the guide post anti-loosening screw.

[0010] Furthermore, the capacitive keypad has a circular structure, and the guide posts include at least four that are equidistantly arranged around the side of the capacitive keypad.

[0011] Furthermore, the button module mounting plate is fixed to the transformer housing by mounting screws.

[0012] Compared with the prior art, the beneficial effects of this utility model include: the design of guide post and compression spring ensures that the capacitive keypad is always in contact with the end cover glass after the end cover is tightened, and the capacitive keypad is always in full contact with the observation glass. Since a floating flexible structure is used, even if there are manufacturing errors in the mechanical parts, it can ensure that the capacitive keypad is always in full contact with the observation glass, thus achieving the purpose of operating the instrument without opening the cover. It can also be directly configured on the instrument in flammable and explosive environments, expanding the scope of application of the instrument. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0014] Figure 1 The schematic diagram shows the overall structure of the button according to one embodiment of the present invention.

[0015] The following are the labels in the diagram: 1. End cap; 2. Observation glass; 3. Capacitive keypad; 4. Guide post; 5. Compression spring; 6. Keypad module mounting plate; 7. Guide post anti-loosening screw; 8. Mounting screw; 9. Transmitter housing. Detailed Implementation

[0016] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0017] According to one embodiment of the present invention, in conjunction with Figure 1 As shown.

[0018] In this embodiment, an adaptive button floating mechanism includes a transmitter housing 9. A rotary pressing end cap 1 is fitted on the top of the transmitter housing 9. The floating mechanism is located between the end cap 1 and the transmitter housing 9. It includes a capacitive button plate 3, a button module fixing plate 6, and a floating member located between the capacitive button plate 3 and the button module fixing plate 6. After the end cap 1 is rotated and pressed down, it fits against the capacitive button plate 3. The button module fixing plate 6 is fixedly connected to the transmitter. The floating member is movably fixed to the button module fixing plate 6 and is used to flexibly push the capacitive button plate 3 upwards axially with the end cap 1.

[0019] The actual structural selection of the floating component can include various types. In this embodiment, the floating component is specifically a plurality of guide posts. The plurality of guide posts are vertically and evenly distributed on the top of the button module fixing plate 6. Their bottom ends pass through the button module fixing plate 6 and are embedded with guide post anti-loosening screws 7 for limiting. Their top ends are soldered to the bottom end of the capacitive button plate 3. The outer wall of each guide post is also covered with a compression spring 5. The bottom end of the compression spring 5 is connected and fixed to the button module fixing plate 6.

[0020] Furthermore, a flat observation glass 2 is provided between the top of the capacitive button plate 3 and the end cover 1. The inner bottom of the end cover 1 and the observation glass 2 are fixed together as a whole by adhesive sealing. After the end cover 1 is rotated and pressed down, the observation glass 2 is in close contact with the capacitive button plate 3. The capacitive button plate 3, the guide post, and the compression spring 5 are fixed together as a whole, and the axial movement of the guide post is limited by the guide post anti-loosening screw 7.

[0021] Similarly, the capacitive button plate 3 has a circular structure, and the guide posts include at least four that are equidistantly arranged around the side of the capacitive button plate 3. The button module fixing plate 6 is fixed to the transformer housing by mounting screws 8.

[0022] As described above, the compression spring 5 provides an upward thrust to the capacitive button plate 3, while the guide post anti-dislodgement screw 7 limits the range of motion of the capacitive button plate 3 and prevents it from fully popping out. This ensures that the capacitive button plate 3 and the button module fixing plate 6 have a certain amount of movement along the height direction and a certain degree of adaptive deflection. The synchronous compression spring 5 ensures that the capacitive button plate 3 is always in its highest position within its range of motion, thus maintaining constant contact between the capacitive button plate 3 and the viewing glass 2.

[0023] Secure the assembled components to the transmitter housing 9 using mounting screws 8, then rotate and insert the end cap 1. As it is screwed in deeper, the observation glass 2 on the end cap 1 will gradually come into contact with the capacitive keypad 3. At this time, the compression spring 5 will provide an upward thrust to the capacitive keypad 3 to ensure tight contact with the observation glass 2. After tightening the end cap 1, the capacitive keypad 3 will always maintain full contact with the observation glass 2. Due to the use of a floating flexible structure, even if there are manufacturing errors in the mechanical parts, it can be ensured that the capacitive keypad 3 always maintains full contact with the observation glass 2.

[0024] As can be seen, this utility model replaces the traditional transmitter button plate screw fixing method by adopting a capacitive button (i.e., button operation through glass). At the same time, due to the characteristics of capacitive buttons, the capacitive button plate 3 needs to be in full contact with the glass at all times. A corresponding floating mechanism was also designed. The design of guide post and compression spring 5 ensures that the button plate is always in contact with the glass of end cover 1, so as to achieve the purpose of operating the instrument without opening the cover. It can also be directly configured on the instrument in flammable and explosive environments, thus expanding the scope of application of the instrument.

[0025] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An adaptive button floating mechanism, comprising a transmitter housing, wherein a rotary-pressable end cap is fitted onto the top of the transmitter housing, characterized in that: The floating mechanism is located between the end cover and the transmitter housing. It includes a capacitor keypad, a key module fixing plate, and a floating member located between the capacitor keypad and the key module fixing plate. After the end cover is rotated and pressed down, it fits against the capacitor keypad. The key module fixing plate is fixedly connected to the transmitter. The floating member is movably fixed to the key module fixing plate and is used to flexibly push the capacitor keypad upward with the end cover in the axial direction.

2. The adaptive button floating mechanism according to claim 1, characterized in that: The floating component includes multiple guide posts, which are vertically and evenly distributed on the top of the button module fixing plate. The bottom end of each guide post passes through the button module fixing plate and is embedded with a guide post anti-loosening screw for limiting. The top end of each guide post is soldered to the bottom end of the capacitive button plate. Each guide post is also covered with a compression spring on its outer wall, and the bottom end of the compression spring is connected and fixed to the button module fixing plate.

3. The adaptive button floating mechanism according to claim 1, characterized in that: A flat observation glass is provided between the top of the capacitive keypad and the end cover, and the inner bottom of the end cover and the observation glass are fixed together as a whole by adhesive sealing.

4. The adaptive button floating mechanism according to claim 3, characterized in that: The observation glass comes into close contact with the capacitive keypad after the end cap is rotated and pressed down.

5. The adaptive button floating mechanism according to claim 2, characterized in that: The capacitive keypad, guide post, and compression spring are fixed as a whole, and the axial movement of the guide post is limited by the guide post anti-loosening screw.

6. The adaptive button floating mechanism according to claim 2, characterized in that: The capacitive keypad has a circular structure, and the guide posts include at least four that are equidistantly arranged around the side of the capacitive keypad.

7. The adaptive button floating mechanism according to claim 1, characterized in that: The button module mounting plate is fixed to the transformer housing by mounting screws.

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