Waterproof composite key with force limitation

Abstract

The application relates to the technical field of button structure, in particular to a waterproof composite key with force limitation, which comprises a supporting seat, a composite key structure arranged on the supporting seat and a force bearing beam; the composite key structure comprises an elastic cantilever embedded and arranged on the supporting seat and a plurality of key bodies arranged on the elastic cantilever; the key body is provided with a touch surface, and the side of the key body away from the touch surface is provided with a force beam; the force bearing beam faces the force beam, and a stroke space for allowing the force beam to pass through is formed between the force bearing beam and the force beam; the force beam is in contact with or separated from the force bearing beam. When the key body is pressed down, the pressing force can be transmitted to the elastic cantilever and then to the supporting seat, thereby playing a buffering role and protecting the key body; the force bearing beam blocks the key body, thereby preventing the key body from being further pressed down and controlling the movement stroke and pressing force of the key body; the structure of the composite key is compact, convenient to disassemble and maintain, has better use stability and maintenance convenience.

Description

Technical Field

[0001] This application relates to the field of button structure technology, and in particular to a waterproof composite button with force limiting. Background Technology

[0002] Surveillance PTZ cameras are widely used in complex environments such as outdoor construction sites, emergency inspections, field security, and mobile surveillance. Therefore, these cameras require high standards for the waterproof and dustproof performance, structural stability, and service life of their buttons. Conventional surveillance PTZ cameras use waterproof buttons for waterproofing and dustproofing. However, these waterproof buttons have complex structures, requiring multiple steps for installation and disassembly, which is inconvenient for production, assembly, maintenance, and replacement. Furthermore, these buttons lack internal protection or restraint structures, and the pressure applied is directly transmitted to the internal electronic contacts. Because the operator's pressing force is uncontrollable, excessive pressure can cause excessive button travel, leading to deformation of the electronic button contacts or contact fatigue. This can result in button jamming, malfunction, or even failure, affecting the operational stability and service life of the surveillance PTZ camera. Utility Model Content

[0003] The purpose of this application is to provide a waterproof composite button with force limitation, which aims to improve the problems of button jamming, malfunction, or even failure and damage caused by the unrestricted internal structure of buttons in conventional ball control equipment in related technologies, and to improve the operation stability and maintenance convenience of ball control equipment.

[0004] This application provides a waterproof composite button with force limitation, including a support base, a composite button structure disposed on the support base, and a load-bearing beam; the composite button structure includes an elastic cantilever fitted into the support base and a plurality of button bodies disposed on the elastic cantilever; each button body has a touch surface, and a force-sharing beam is provided on the side of the button body away from the touch surface, the load-bearing beam faces the force-sharing beam, and a travel space is formed between the load-bearing beam and the force-sharing beam for the force-sharing beam to pass through; the force-sharing beam contacts or separates from the load-bearing beam.

[0005] Furthermore, the elastic cantilever has a limiting part and a mounting part on the side near the support seat, and the mounting part extends along the outer peripheral surface of the elastic cantilever; the support seat is provided with a limiting groove for cooperating with the limiting part and a mounting groove for cooperating with the mounting part, the limiting part is fitted into the limiting groove, and the mounting part is fitted into the mounting groove.

[0006] Furthermore, the length direction of the mounting part is the same as the length direction of the mounting groove, and there is a gap cavity between the mounting part and the mounting groove for adapting to the deformation of the elastic cantilever.

[0007] Furthermore, the mounting portion has a waterproof block at one end near the mounting groove, and the waterproof block abuts against the mounting groove.

[0008] Furthermore, the side of the elastic cantilever away from the load-bearing beam has a transition connection surface, and the transition connection surface is circularly transitioned to the touch surface.

[0009] Furthermore, it also includes a light source structure, which includes an FPC board disposed on the support base and LED beads disposed on the FPC board, with the LED beads facing the button body.

[0010] Furthermore, the FPC board is attached to the side of the support base away from the elastic cantilever; a receiving cavity for accommodating the LED lamp bead is formed between the support base and the load-bearing beam, the LED lamp bead is located in the receiving cavity, and the light beam emitted by the LED lamp bead passes through the receiving cavity and enters the button body.

[0011] Furthermore, a light-diffusing powder layer is provided on the side of the button body near the LED light bead, and the light-diffusing powder layer is located in the receiving cavity.

[0012] The beneficial effects of this application are: 1. This application discloses a waterproof composite button with force limiting. It comprises a support base, a composite button structure, and a load-bearing beam. The support base supports the composite button structure and the load-bearing beam. The composite button structure uses an elastic cantilever to mount the button body. When the button body is pressed, the pressing force is simultaneously transmitted to the elastic cantilever and then to the support base, thus providing a buffering effect to protect the button body. Simultaneously, by setting a load-bearing beam on the support base and a force-sharing beam on the button body, when the button body is pressed, it travels through a travel space and finally abuts against the load-bearing beam. The load-bearing beam blocks the button body, preventing further downward pressure and controlling the movement stroke of the button body. This reduces the risk of deformation of the electronic button spring or contact fatigue due to excessive button travel, which could lead to button jamming, malfunction, or even failure. The force applied to the electronic button can be adjusted by changing the hardness of the button body and the diameter of the contact part with the electronic button, ensuring that the electronic button can be triggered without exceeding its maximum withstand force, achieving better protection. Furthermore, the waterproof composite button has a compact structure, is easy to disassemble and maintain, and effectively improves the operational stability and maintenance convenience of the control ball equipment.

[0013] 2. A force-limiting waterproof composite button of this application, by setting a waterproof block in the mounting part of the elastic cantilever, and having a gap cavity between the mounting part and the mounting groove, on the one hand, when the elastic cantilever is deformed by force, the gap cavity can adapt to the elastic cantilever, thereby providing space for the deformation of the elastic cantilever; on the other hand, the waterproof block pressing against the mounting groove can play a role in waterproofing and dustproofing, and the elastic cantilever can effectively block external moisture and dust after being installed, thereby increasing the airtightness of the composite button.

[0014] 3. The waterproof composite button with force limitation of this application further sets up a light source structure and sets a light-diffusing powder layer on the button body. The LED beads of the light source structure can illuminate the button body, and the light-diffusing powder layer can achieve a uniform light effect on the LED light, so that the logo on the touch surface is illuminated evenly, thereby making the button logo more eye-catching, the ambient light soft and not dazzling, and making it easier for operators to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a waterproof composite button with force limiting when it is installed on a control ball, according to an embodiment of this application; Figure 2 This is a cross-sectional schematic diagram of a waterproof composite button with force limiting provided in an embodiment of this application; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 yes Figure 2 A magnified view of part B in the diagram.

[0016] Explanation of reference numerals in the attached figures: 1. Support base; 11. Limiting groove; 12. Mounting groove; 2. Composite button structure; 21. Elastic cantilever; 211. Limiting part; 212. Mounting part; 213. Waterproof block; 214. Transition connection surface; 22. Button body; 221. Touch surface; 222. Component beam; 3. Load-bearing beam; 4. Light source structure; 41. FPC board; 42. LED beads. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0020] Reference Figure 1 , Figure 2 as well as Figure 3 This application provides a waterproof composite button with force limiting, including a support base 1, a composite button structure 2 disposed on the support base 1, and a load-bearing beam 3. When the waterproof composite button is in use, pressing the composite button structure 2 provides a buffering effect, and the load-bearing beam 3 can limit the movement stroke of the composite button structure 2, thereby reducing the deformation or contact fatigue caused by excessive force on the electronic button spring due to excessive button travel, which may lead to button jamming, malfunction, or even failure and damage.

[0021] Specifically, the support seat 1 is used to provide support and installation for the composite button structure 2 and the load-bearing beam 3. The support seat 1 can be an independent component or a part of the equipment. For example, when the waterproof composite button is used in a control ball, the support seat 1 can be a part of the control ball's outer shell.

[0022] The composite button structure 2 includes an elastic cantilever 21 fitted and mounted on a support base 1, and several button bodies 22 disposed on the elastic cantilever 21. The elastic cantilever 21 extends along the length direction of the support base 1, allowing it to be fitted and mounted along the length direction of the support base 1. The button bodies 22 are fitted and mounted on the elastic cantilever 21, and a corresponding electronic button handle is provided at the end of the button body 22 away from the elastic cantilever 21. The button bodies 22 are arranged along the length direction of the elastic cantilever 21. In this embodiment, there are three button bodies 22, which are evenly arranged along the length direction of the elastic cantilever 21. The button body 22 has a touch surface 221, which can be located on the button cap of the button body 22. The touch surface 221 has a logo displaying the button function, making it easy for the operator to observe and press the corresponding button body 22. In addition, the side of the elastic cantilever 21 away from the load-bearing beam 3 has a transition connection surface 214, which is arc-shaped and transitions smoothly with the touch surface 221. When the button body 22 is installed on the elastic cantilever 21, the upper part of the button body 22 and the upper part of the elastic cantilever 21 will be connected by an arc, so that the button body 22 and the elastic cantilever 21 form a whole, thereby improving the aesthetics and touch experience.

[0023] The button body 22 has a force-sharing beam 222 on the side away from the touch surface 221, and a load-bearing beam 3 faces the force-sharing beam 222. A travel space is formed between the load-bearing beam 3 and the force-sharing beam 222 to allow the force-sharing beam 222 to pass through. The force-sharing beam 222 can contact or detach from the load-bearing beam 3. More specifically, the load-bearing beam 3 can be fixedly connected to the inner wall of the support base 1 or integrally formed with the support base 1. The load-bearing beam 3 is vertically arranged and one end of the load-bearing beam 3 faces the force-sharing beam 222. The force-sharing beam 222 can be located on the side of the button cap away from the touch surface 221. When the button body 22 is pressed, the force-sharing beam 222 will move towards the load-bearing beam 3 as the button body 22 is pressed. After passing through the travel space, the force-sharing beam 222 contacts the load-bearing beam 3. The load-bearing beam 3 blocks the button body 22, thereby preventing the button body 22 from moving further downward, and thus controlling the travel of the button body 22, thereby avoiding excessive pressure on the electronic button handle due to excessive travel of the button body 22.

[0024] To facilitate the installation of the elastic cantilever 21 and the support base 1, the elastic cantilever 21 has a limiting part 211 and a mounting part 212 on the side near the support base 1. The limiting part 211 is located in the middle of the elastic cantilever 21, and the mounting part 212 extends along the outer peripheral surface of the elastic cantilever 21. Correspondingly, the support base 1 is provided with a limiting groove 11 for engaging the limiting part 211 and a mounting groove 12 for engaging the mounting part 212. The limiting part 211 is fitted into the limiting groove 11, and the mounting part 212 is fitted into the mounting groove 12. With this configuration, when installing the elastic cantilever 21, the limiting part 211 of the elastic cantilever 21 is aligned with the limiting groove 11, and the mounting part 212 is aligned with the mounting groove 12 and force is applied to insert it, so that the elastic cantilever 21 is fitted into the support base 1.

[0025] Furthermore, the length direction of the mounting part 212 is the same as the length direction of the mounting groove 12. A gap cavity for adapting to the deformation of the elastic cantilever 21 is provided between the mounting part 212 and the mounting groove 12. A waterproof block 213 is provided at the end of the mounting part 212 near the mounting groove 12, and the waterproof block 213 abuts against the mounting groove 12. When the elastic cantilever 21 deforms under force, the gap cavity adapts to the elastic cantilever 21, thus providing space for its deformation. The waterproof block 213 abutting against the mounting groove 12 provides waterproofing and dustproofing. After installation, the elastic cantilever 21 effectively blocks external moisture and dust, thereby increasing the airtightness of the composite button. It is understood that a limiting gap cavity for adapting to the deformation of the elastic cantilever 21 can also be provided between the limiting part 211 and the limiting groove 11, thereby better adapting to the deformation of the elastic cantilever 21.

[0026] Reference Figure 2 as well as Figure 4 Considering that the waterproof composite button will be used in environments with insufficient lighting, in order to improve the adaptability of the waterproof composite button to different environments, the waterproof composite button also includes a light source structure 4. The light source structure 4 includes an FPC board 41 disposed on the support base 1 and LED beads 42 disposed on the FPC board 41, with the LED beads 42 facing the button body 22. There are multiple FPC boards 41 and LED beads 42, and multiple FPC boards 41 and LED beads 42 are arranged along the length direction of the support base 1 to illuminate the button body 22. In this embodiment, one button body 22 corresponds to two FPC boards 41 and LED beads 42.

[0027] Specifically, in this embodiment, the FPC board 41 is attached to the side of the support base 1 away from the elastic cantilever 21. Specifically, the FPC board 41 can be attached to both the support base 1 and the load-bearing beam 3 away from the elastic cantilever 21. A receiving cavity for accommodating the LED beads 42 is formed between the support base 1 and the load-bearing beam 3. The LED beads 42 are located within the receiving cavity, and the light beam emitted by the LED beads 42 passes through the receiving cavity and enters the button body 22. Simultaneously, the button body 22 has a light-transmitting logo printed on it. A light-diffusing powder layer (not shown in the figure) is provided on the side of the button body 22 near the LED beads 42. This light-diffusing powder layer is located within the receiving cavity and can be specifically disposed within the button body 22 or on the side of the button body 22 facing the LED beads 42. By further configuring the light source structure 4 and adding a diffuser powder layer to the button body 22, the LED beads 42 of the light source structure 4 can illuminate the button body 22, while the diffuser powder layer can evenly distribute the LED light, making the logo on the touch surface 221 emit light uniformly. This makes the logo more eye-catching, with a soft and non-glaring ambient light, facilitating operation. It should be noted that the light source structure 4 can be configured or omitted as needed to adapt to the functional requirements of the waterproof composite button; the specific location and number of the light source structure 4 can be adjusted according to actual needs.

[0028] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A waterproof composite button with force limiting, characterized in that, The device includes a support base (1), a composite button structure (2) disposed on the support base (1), and a load-bearing beam (3); the composite button structure (2) includes an elastic cantilever (21) fitted and installed on the support base (1) and a plurality of button bodies (22) disposed on the elastic cantilever (21); the button body (22) has a touch surface (221), and a force-sharing beam (222) is provided on the side of the button body (22) away from the touch surface (221), the load-bearing beam (3) faces the force-sharing beam (222), and a travel space is formed between the load-bearing beam (3) and the force-sharing beam (222) for the force-sharing beam (222) to pass through; the force-sharing beam (222) is in contact with or detached from the load-bearing beam (3).

2. The waterproof composite button with force limiting according to claim 1, characterized in that, The elastic cantilever (21) has a limiting part (211) and a mounting part (212) on the side near the support base (1). The mounting part (212) extends along the outer peripheral surface of the elastic cantilever (21). The support base (1) is provided with a limiting groove (11) for cooperating with the limiting part (211) and a mounting groove (12) for cooperating with the mounting part (212). The limiting part (211) is fitted into the limiting groove (11), and the mounting part (212) is fitted into the mounting groove (12).

3. A waterproof composite button with force limiting according to claim 2, characterized in that, The length direction of the mounting part (212) is the same as the length direction of the mounting groove (12), and there is a gap cavity between the mounting part (212) and the mounting groove (12) for adapting to the deformation of the elastic cantilever (21).

4. A waterproof composite button with force limiting according to claim 3, characterized in that, The mounting part (212) has a waterproof block (213) at one end near the mounting groove (12), and the waterproof block (213) abuts against the mounting groove (12).

5. A waterproof composite button with force limiting according to claim 1, characterized in that, The elastic cantilever (21) has a transition connection surface (214) on the side away from the load-bearing beam (3), and the transition connection surface (214) is circularly transitioned to the touch surface (221).

6. A waterproof composite button with force limiting according to any one of claims 1-5, characterized in that, It also includes a light source structure (4), which includes an FPC board (41) disposed on the support base (1) and LED beads (42) disposed on the FPC board (41), with the LED beads (42) facing the button body (22).

7. A waterproof composite button with force limiting according to claim 6, characterized in that, The FPC board (41) is attached to the side of the support base (1) away from the elastic cantilever (21); a receiving cavity for accommodating the LED lamp bead (42) is formed between the support base (1) and the load-bearing beam (3), the LED lamp bead (42) is located in the receiving cavity, and the light beam emitted by the LED lamp bead (42) passes through the receiving cavity and enters the button body (22).

8. A waterproof composite button with force limiting according to claim 7, characterized in that, The button body (22) has a light-diffusing powder layer on the side near the LED bead (42), and the light-diffusing powder layer is located in the receiving cavity.

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