Infrared device with picture zoom control function

Abstract

The application relates to an infrared device with a picture zooming control function and belongs to the technical field of infrared devices, which solves the problem of too many operation buttons of the infrared device in the prior art and inconvenient operation. The infrared device comprises a lens assembly, a transmission shaft, a roller, a circuit mainboard and an eccentric displacement assembly; the roller is installed on a rotating shaft of the eccentric displacement assembly and can be synchronously displaced and rotated; when the roller is pressed down, the eccentric displacement assembly is eccentrically displaced, and then a pressing-down support of the eccentric displacement assembly can touch a button of the circuit mainboard; and then short pressing for shooting and long pressing for video recording are realized; when the roller is rotated, the rotating shaft and the transmission shaft can be rotated; when the transmission shaft is rotated, the lens spacing of the lens assembly can be adjusted, and then the zooming of a picture is realized. The application realizes multiple functions through the roller, and the operation is convenient.

Description

Technical Field

[0001] This invention relates to the field of infrared equipment technology, and in particular to an infrared device with image scaling control function. Background Technology

[0002] Since infrared night vision devices are generally used outdoors, it is not easy to find the operation buttons in dark environments; therefore, the more operation buttons there are, the less convenient it is to operate.

[0003] There are already infrared devices that use roller structures to achieve electronic display magnification.

[0004] However, existing infrared devices, which use both scroll wheel and button buttons on a single device, remain very inconvenient to operate. The existing scroll wheel design only implements the zoom function of the button buttons, lacking the functionality of short press for taking a photo and long press for recording video.

[0005] Therefore, there is a need to provide a new infrared device that integrates button functions on a scroll wheel to simplify operation and improve ease of use. Summary of the Invention

[0006] Based on the above analysis, the present invention aims to provide an infrared device with screen zoom control function to solve the problems of scattered buttons, limited functions, and inconvenient operation of existing devices.

[0007] The objective of this invention is mainly achieved through the following technical solutions:

[0008] An infrared device with image scaling control function includes: a lens assembly, a drive shaft, a roller, a circuit board, an eccentric displacement assembly, and an infrared module; the roller is mounted on the rotation shaft of the eccentric displacement assembly and can move and rotate synchronously; when the roller is pressed down, the eccentric displacement assembly undergoes eccentric displacement, and the pressing bracket of the eccentric displacement assembly can trigger a button on the circuit board; when the roller rotates, it can drive the rotation shaft and the drive shaft to rotate; when the drive shaft rotates, it can adjust the lens spacing of the lens assembly, thereby realizing image scaling.

[0009] Furthermore, the drive shaft is fixedly connected to the rotating shaft.

[0010] Furthermore, the roller has a U-shaped hole in the middle; the rotating shaft is sleeved and installed in the U-shaped hole of the roller.

[0011] Furthermore, the lens assembly includes: a lens positioning cylinder, a first lens, a displacement conversion mechanism, and a second lens; the displacement conversion mechanism is capable of converting rotational motion into linear motion; the first lens is fixedly installed in the lens positioning cylinder; and the second lens is slidably installed in the lens positioning cylinder via the displacement conversion mechanism.

[0012] Furthermore, a gear is fixedly mounted at the end of the drive shaft; when the gear rotates, it can drive the second lens to move through the displacement conversion mechanism.

[0013] Furthermore, the eccentric displacement assembly further includes: a first compensation wheel, a second compensation wheel, and a guide frame; the rotating shaft is rotatably mounted on the housing of the infrared device via the first and second compensation wheels; both the first and second compensation wheels are elastic structures; the guide frame is disposed inside the housing and the two are fixedly connected; the lowering bracket is slidably mounted on the guide frame; when the rotating shaft is displaced, it can drive the lowering bracket to slide relative to the guide frame.

[0014] Furthermore, the first compensation wheel and the second compensation wheel have the same structure.

[0015] Furthermore, both the first compensation wheel and the second compensation wheel are made of rubber.

[0016] Furthermore, the side of the first compensation wheel is provided with an annular groove; a spring is provided in the annular groove.

[0017] Furthermore, multiple springs are circumferentially arranged in the annular groove; the springs are arranged radially along the first compensation wheel.

[0018] A method for controlling an infrared device, using the aforementioned infrared device with screen zoom control function.

[0019] The technical solution of this invention can achieve at least one of the following effects:

[0020] 1. The infrared device of the present invention enables the zooming in and out of the image and the short-press to take a photo and the long-press to record a video via a scroll wheel; the scroll wheel drives the second lens of the lens assembly to move through a rotating shaft and a transmission shaft, adjusts the lens spacing, and thus achieves image zooming; at the same time, pressing down on the scroll wheel can drive the pressing bracket to move down, thereby enabling the pressing operation of the buttons on the circuit board.

[0021] 2. In the infrared device of the present invention, the rotating shaft is rotatably mounted on the outer shell of the device via a first compensation wheel and a second compensation wheel; the two compensation wheels have the function of bearings, enabling the rotation of the rotating shaft, while the first compensation wheel and the second compensation wheel are elastic structures, allowing the rotating shaft to move up and down through elastic deformation, and when the rotating shaft is pressed down, it can drive the lowering bracket to move, thereby enabling multiple operation functions of the roller.

[0022] 3. In the infrared device of the present invention, the compensation wheel is made of rubber and has multiple built-in springs, which can achieve elastic deformation, realize the displacement of the rotating shaft when the roller is pressed down, and realize the reset of the rotating shaft and the pressing support after the roller is released.

[0023] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0024] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0025] Figure 1 This is a schematic diagram of the infrared device with screen scaling control function according to the present invention.

[0026] Figure 2 A schematic diagram of the screen scaling control device;

[0027] Figure 3 This is a schematic diagram of the external structure of the lens assembly;

[0028] Figure 4 This is a schematic diagram of the internal structure of the lens assembly;

[0029] Figure 5 This is a schematic diagram of the rotating shaft.

[0030] Figure 6 This is a schematic diagram of the compensation wheel structure;

[0031] Figure 7 This is a schematic diagram of the roller structure;

[0032] Figure 8 This is a schematic diagram of the guide frame structure;

[0033] Figure 9 This is a sectional view of the guide frame;

[0034] Figure 10 This is a cross-sectional view of the pressure bracket;

[0035] Figure 11 This is a cross-sectional view of the compensation wheel in Example 2.

[0036] Figure label:

[0037] 1-Lens assembly; 2-Drive shaft; 3-Roller; 4-Circuit mainboard; 5-Eccentric displacement assembly; 6-Infrared module; 7-Gear; 8-Housing;

[0038] 11-Lens positioning tube; 12-Outer sleeve; 13-Connecting pin; 14-First lens; 15-Lens mounting base; 16-Second lens; 121-Gear plate; 122-Spiral groove;

[0039] 31-U-shaped hole;

[0040] 51-Rotating shaft; 52-First compensating wheel; 53-Second compensating wheel; 54-Seal; 55-Guide frame; 56-Pressing bracket;

[0041] 511 - First shaft section; 512 - Second shaft section; 513 - Third shaft section; 514 - Fourth shaft section; 515 - Shaft hole;

[0042] 521-Rubber wheel body; 522-Annular groove; 523-Spring;

[0043] 531 - Inner wheel body; 532 - Arc-shaped elastic ring; 533 - Rubber ring; 553 - Elastic element;

[0044] 551 - Guide groove;

[0045] 561-Sliding plate; 562-Rotating shaft mounting hole; 563-Pressing plate; 564-Pressing part. Detailed Implementation

[0046] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0047] Example 1

[0048] One specific embodiment of the present invention discloses an infrared device with image scaling control function, such as... Figure 1 , Figure 2 As shown, it includes: a lens assembly 1, a drive shaft 2, a roller 3, a circuit board 4, an eccentric displacement assembly 5, and an infrared module 6; the roller 3 is mounted on the rotation shaft 51 of the eccentric displacement assembly 5 and can move and rotate synchronously; when the roller 3 is pressed down, the eccentric displacement assembly 5 undergoes eccentric displacement, and the pressing bracket 56 of the eccentric displacement assembly 5 can trigger the button on the circuit board 4; when the roller 3 rotates, it can drive the drive shaft 2 to rotate; when the drive shaft 2 rotates, it can adjust the lens spacing of the lens assembly 1, thereby realizing the scaling of the image.

[0049] Furthermore, the drive shaft 2 and the rotating shaft 51 are fixedly connected by welding or threaded connection. Alternatively, the drive shaft 2 and the rotating shaft 51 are an integral structure.

[0050] Specifically, the roller 3 has a U-shaped hole 31 in its middle; the rotating shaft 51 is sleeved and installed in the U-shaped hole 31 of the roller 3. The roller 3 is sleeved on the outside of the rotating shaft 51. Since the rotating shaft 51 and the roller 3 are engaged through the U-shaped hole, when the roller 3 rotates, it can drive the rotating shaft 51 to rotate synchronously, and when the roller 3 presses down, it can drive the rotating shaft 51 and the pressing support 56 to move down.

[0051] In one specific embodiment of the present invention, such as Figure 3 , Figure 4 As shown, the lens assembly 1 includes: a lens positioning cylinder 11, a first lens 14, a displacement conversion mechanism, and a second lens 16; the displacement conversion mechanism can convert rotational motion into linear motion; the first lens 14 is fixedly installed in the lens positioning cylinder 11; the second lens 16 is slidably installed in the lens positioning cylinder 11 through the displacement conversion mechanism.

[0052] The displacement conversion mechanism includes an outer sleeve 12, a connecting pin 13, and a lens mounting base 15. Specifically, the second lens 16 is fixedly connected to the lens mounting base 15, and the lens mounting base 15 is slidably installed inside the lens positioning cylinder 11 and can slide along the axial direction of the lens positioning cylinder 11; the second lens 16 is fixedly installed on the lens mounting base 15 and can slide with the lens mounting base 15; when the lens mounting base 15 and the second lens 16 slide relative to the lens positioning cylinder 11, the distance between the first lens 14 and the second lens 16 can be changed, thereby enabling the display image of the infrared device to be magnified and reduced.

[0053] Specifically, an outer sleeve 12 is coaxially fitted around the lens positioning cylinder 11, and the outer sleeve 12 can rotate relative to the lens positioning cylinder 11 along its own axis. The outer sleeve 12 has a spiral groove 122, and a connecting pin 13 is disposed in the spiral groove 122 and passes through it to be fixedly connected to the lens mounting base 15. When the outer sleeve 12 rotates relative to the lens positioning cylinder 11, the connecting pin 13 slides relative to it in the spiral groove 122, and the connecting pin 13 and the lens mounting base 15 can move up and down relative to the lens positioning cylinder 11 under the pushing action of the spiral groove 122. During the up and down movement of the lens mounting base 15, the position of the second lens 16 can be adjusted, changing the distance between the first lens 14 and the second lens 16.

[0054] Specifically, the outer sleeve 12 is integrally provided with a toothed plate 121; the end of the transmission shaft 2 is fixedly connected to a gear 7; the gear 7 meshes with the toothed plate 121 integrally provided on the outer sleeve 12, and when the transmission shaft 2 drives the gear 7 to rotate, the gear 7 meshes with the toothed plate 121 to drive the outer sleeve 12 to rotate; the present invention drives the outer sleeve 12 to rotate through the transmission shaft 2 and the gear 7, and then pushes the connecting pin 13 and the lens fixing seat 15 to move through the outer sleeve 12, thereby adjusting the distance between the first lens 14 and the second lens 16 and realizing the scaling of the display screen.

[0055] In one specific embodiment of the present invention, such as Figure 1 As shown, the tooth clearance depth of the toothed plate 121 is greater than the tooth height of the gear 7; and the downward pressing direction of the roller 3 is perpendicular to the axial direction of the gear 7 and the transmission shaft 2. That is, when the rotating shaft 51 is in the initial position, the toothed plate 121 of the present invention can mesh with the gear 7 for transmission; when the rotating shaft 51 is displaced under the downward pressing action of the roller 3, the gear 7 is displaced in a direction closer to the toothed plate 121 to realize the displacement of the pressing bracket 56.

[0056] Alternatively, in another specific embodiment of the present invention, in order to achieve the transmission and relative displacement between gear 7 and gear plate 121, gear 7 is configured as a double-layer structure, comprising an inner ring and an outer ring. The inner ring has the same elastic structure as the first compensating wheel 52, and the outer ring is a gear ring. When roller 3 drives rotating shaft 51 to rotate, transmission shaft 2 drives gear 7 to rotate. Gear 7 and gear plate 121 mesh and drive the outer sleeve 12 to rotate, thereby pushing the connecting pin 13, lens mounting base 15, and second lens 16 to displacement through helical groove 122. When pressing down roller 3, rotating shaft 51 drives transmission shaft 2 and pressing support 56 to move synchronously. The elastic structure of the inner ring of gear 7 undergoes elastic deformation to adapt to the eccentric displacement of transmission shaft 2.

[0057] Furthermore, the eccentric displacement assembly 5 further includes: a first compensation wheel 52, a second compensation wheel 53, and a guide frame 55; the rotating shaft 51 is rotatably mounted on the housing 8 of the infrared device via the first compensation wheel 52 and the second compensation wheel 53; both the first compensation wheel 52 and the second compensation wheel 53 are elastic structures; the guide frame 55 is disposed inside the housing 8 and the two are fixedly connected; the pressing bracket 56 is slidably mounted on the guide frame 55; when the rotating shaft 51 is displaced, it can drive the pressing bracket 56 to slide relative to the guide frame 55. The rotating shaft 51 achieves eccentric displacement through the elastic deformation of the eccentric displacement assembly; the pressing bracket 56 is provided with a rotating shaft mounting hole 562, and the rotating shaft 51 is clearance-fitted with the rotating shaft mounting hole 562; when the rotating shaft 51 rotates, the rotating shaft 51 and the pressing bracket 56 rotate relative to each other through the gap of the rotating shaft mounting hole 562; when the rotating shaft is displaced, the pressing bracket 56 is displaced synchronously with the rotating shaft 51, and can trigger the button of the circuit board 4.

[0058] Specifically, the first compensation wheel 52 and the second compensation wheel 53 have the same structure but different sizes.

[0059] Furthermore, both the first compensation wheel 52 and the second compensation wheel 53 are made of rubber.

[0060] In one specific embodiment of the present invention, such as Figure 6 As shown, the first compensation wheel 52 includes a rubber wheel body 521 and a spring 523. The rubber wheel body 521 is sleeved on the outside of the rotating shaft 51 and is interference-fitted. A circular groove 522 is provided on the side of the rubber wheel body 521, and a spring 523 is installed between the two sides of the groove 522. Specifically, multiple springs 523 are circumferentially arranged in the groove 522, and the axial direction of the springs 523 coincides with the radial direction of the rubber wheel body 521. When the roller 3 presses down, the rotating shaft 51 moves downward synchronously with the roller 3, causing the first compensation wheel 52 and the second compensation wheel 53 to deform. The spring 523 located below the rotating shaft 51 is compressed, while the spring 523 located above the rotating shaft 51 is stretched. The eccentric deformation of the first compensation wheel 52 and the second compensation wheel 53 adapts to the displacement of the rotating shaft 51 during downward pressure, while maintaining a sealing effect on the inner cavity of the equipment. Preferably, the rubber wheel body 521 is made of SR5570LB self-lubricating rubber.

[0061] When the rotating shaft 51 is pressed down, the compensating wheel should be able to deform smoothly, while avoiding deformation of the compensating wheel when the rotating roller 3 is rotated; therefore, the elastic modulus of the compensating wheel should not be too large or too small to avoid difficulty in pressing down the roller 3 or accidental pressing down. Preferably, the depth of the annular groove 522 is 1 / 2 to 2 / 3 of the thickness of the rubber wheel body 521.

[0062] In this invention, when the roller 3 rotates, the rotating shaft 51, the first compensation wheel 52, and the second compensation wheel 53 all rotate synchronously. The transmission shaft 2 transmits power through the gear 7 and the gear 121 to adjust the lens spacing of the lens assembly 1, ultimately achieving a certain degree of magnification or reduction of the infrared display image. When the roller 3 is pressed down, the rotating shaft 51 moves downward synchronously with the roller 3, thereby driving the downward pressure bracket 56 to move and trigger the buttons on the circuit board 4, realizing short press for taking a photo and long press for recording a video.

[0063] Specifically, the first compensation wheel 52 and the second compensation wheel 53 are both sleeved on the outside of the rotating shaft 51 with an interference fit, and are respectively located on both sides of the roller 3; the first compensation wheel 52 and the second compensation wheel 53 are rotatably mounted on the outer shell 8, and are both elastic structures.

[0064] In one specific embodiment of the present invention, a first extension and a second extension are provided on the inner side of the outer casing 8; the first extension is provided with a first mounting hole for rotatably mounting a first compensation wheel 52, and the second extension is provided with a second mounting hole for rotatably mounting a second compensation wheel 53.

[0065] Specifically, such as Figure 2 As shown, both the first compensation wheel 52 and the second compensation wheel 53 are interference-fitted with the rotating shaft 51. When the roller 3 rotates, it drives the first compensation wheel 52 and the second compensation wheel 53 to rotate synchronously. When the first compensation wheel 52 and the second compensation wheel 53 rotate, they rotate relative to the outer casing 8. At this time, the first compensation wheel 52 and the second compensation wheel 53 rotate rubbingly in the first mounting hole and the second mounting hole, respectively. When the rotating shaft 51 is displaced, the first compensation wheel 52 and the second compensation wheel 53 undergo elastic deformation.

[0066] Preferably, such as Figure 2 As shown, both the first mounting hole and the second mounting hole are stepped holes, so that the cylindrical side of the first compensating wheel 52 or the second compensating wheel 53 can mate with the large hole section of the first mounting hole or the second mounting hole, and one end face of the first compensating wheel 52 or the second compensating wheel 53 can fit against the stepped end face of the first mounting hole or the second mounting hole.

[0067] Furthermore, such as Figure 5 As shown, the rotation axis 51 is a multi-segment stepped axis; specifically, the rotation axis 51 includes a first axis segment 511, a second axis segment 512, a third axis segment 513, and a fourth axis segment 514 with decreasing diameters.

[0068] Specifically, the end of the first shaft segment 511 is provided with a shaft hole 515, and the transmission shaft 2 is screwed into the shaft hole 515 by a thread; the transmission shaft 2 can transmit the rotation direction and rotation angle of the rotating shaft 51.

[0069] Specifically, such as Figure 2 As shown, the first compensation wheel 52 is fitted onto the second shaft section 512 with an interference fit; one side of the first compensation wheel 52 is in contact with the shoulder end face between the first shaft section 511 and the second shaft section 512; the other side of the first compensation wheel 52 is in contact with the first extension of the outer casing 8; by setting the two sides of the first compensation wheel 52 to be in contact with the first shaft section 511 of the rotating shaft 51 and the first extension of the outer casing 8, the present invention achieves a sealed installation at the first compensation wheel 52. When the first compensation wheel 52 rotates synchronously with the rotating shaft 51, it slides against the outer casing 8, maintaining the sealing effect on the first mounting hole.

[0070] Specifically, such as Figure 7 As shown, a U-shaped hole 31 is provided in the middle of the roller 3, and the roller 3 is installed on the third shaft section 513 of the rotating shaft; correspondingly, the third shaft section 513 is a U-shaped shaft; the third shaft section 513 of the rotating shaft 51 cooperates with the U-shaped hole 31 of the roller 3 so that the two can rotate and move synchronously. When the roller 3 is pressed down or rotated, the rotating shaft 51 is also pressed down or rotated synchronously.

[0071] Specifically, such as Figure 2 As shown, the second compensating wheel 53 is fitted onto the fourth shaft segment 514 of the rotating shaft 51 with an interference fit. One side of the second compensating wheel 53 makes sealing contact with the shoulder between the third shaft segment 513 and the fourth shaft segment 514, and the other side of the second compensating wheel 53 makes sealing contact with the sealing element 54, ensuring that the second compensating wheel 53 can always seal the second mounting hole when it rotates and deforms. When the second compensating wheel 53 rotates synchronously with the rotating shaft 51, the second compensating wheel 53 maintains sliding friction with the sealing element 54, thus achieving a seal on the second mounting hole.

[0072] Specifically, the seal 54 is fixedly connected to the second extension of the housing 8 by welding or bonding; the seal 54 has a through hole in its middle, through which the fourth shaft segment 514 of the rotating shaft 51 passes and connects to the pressure bracket 56. Further, the diameter of the through hole is larger than the diameter of the fourth shaft segment 514 of the rotating shaft 51, reserving space to allow the rotating shaft 51 to move downwards, such as... Figure 2 As shown.

[0073] Since infrared night vision devices are generally used outdoors, they require high waterproofing capabilities. Not only must the device be waterproof when stationary, but it must also be waterproof during user operation. The infrared device of this invention, through the sealed installation of the first compensation wheel 52 and the second compensation wheel 53, maintains a constant seal on the infrared device during pressing or rotating operations of the roller 3, thus providing excellent waterproofing.

[0074] Furthermore, to ensure the accuracy of the displacement direction of the rotating shaft 51, and thus the accuracy of the pressing position of the pressing bracket 56, a guide frame 55 is also provided in this invention. The guide frame 55 is fixedly installed inside the outer casing 8; the pressing bracket 56 is slidably installed on the guide frame 55.

[0075] Specifically, such as Figure 8 , Figure 9 As shown, the guide frame 55 has a C-shaped structure, including: a guide main plate, a first side plate, and a second side plate; the first side plate and the second side plate are respectively disposed at both ends of the guide main plate and are perpendicular to the guide main plate; the first side plate and the second side plate are provided with two guide grooves 551 in opposite positions. The pressure bracket 56 is slidably installed in the guide groove 551, and the guide groove 551 is perpendicular to the axis of the rotation shaft 51.

[0076] Specifically, such as Figure 10 As shown, the pressing bracket 56 includes an integrally formed sliding plate 561, a rotating shaft mounting hole 562, a pressing plate 563, and a pressing part 564. The sliding plate 561 is slidably mounted on the guide frame 55, and the sliding direction of the sliding plate 561 is perpendicular to the rotation axis of the rotating shaft 51. The rotating shaft mounting hole 562 is located in the middle of the sliding plate 561, and the rotating shaft 51 is rotatably mounted in the rotating shaft mounting hole 562 with a clearance fit, allowing the rotating shaft 51 to rotate relative to the pressing bracket 56, and causing the pressing bracket 56 to move downwards synchronously when the rotating shaft 51 moves downwards.

[0077] Furthermore, the pressure plate 563 is vertically disposed on the sliding plate 561, and the pressure plate 563 is provided with a protruding pressure part 564. In the infrared device of the present invention, when the pressure roller 3 causes the rotating shaft 51 to move downward, the pressure bracket 56 synchronously rotates the shaft 51 downward, and can trigger the button of the circuit main board 4 through the pressure part 564. That is, when the rotating shaft 51 moves downward, the pressure part 564 can press the button of the circuit main board 4, thereby realizing the functions of pressing to take pictures and long pressing to record videos of the infrared device.

[0078] Specifically, the compensation wheel uses SR5570LB self-lubricating rubber, which has a self-lubricating function, improving the fatigue life of rubber parts while making the roller 3 feel better.

[0079] Furthermore, the circuit board 4 and the infrared module 6 are electrically connected via cables to enable the signal processing function of the infrared device.

[0080] It is worth noting that: the infrared device of this invention refers to an infrared night vision device; the circuit board 4, infrared module 6, and other components of this invention are all existing components of infrared devices and can be matched using existing infrared device technology. This invention is an improvement design of existing infrared devices; this invention does not describe the components and principles related to signal reception, processing, and display of infrared devices, as the above content belongs to the prior art of infrared devices and will not be elaborated upon in this invention, nor will it affect the implementation of the technical solution of this invention.

[0081] Example 2

[0082] In one specific embodiment of the present invention, an improvement is made based on embodiment 1; a compensation wheel with a different structure is used to replace the compensation wheel in embodiment 1, but its installation method and setting position are the same as those of the compensation wheel in embodiment 1.

[0083] In this embodiment, the first compensation wheel 52 and the second compensation wheel 53 have the same structure, but different dimensions.

[0084] like Figure 11 As shown, the second compensation wheel 53 is coaxially arranged with an inner wheel body 531, an arc-shaped elastic ring 532, and a rubber ring 533 from the inside to the outside.

[0085] Specifically, the inner wheel body 531 and the rotating shaft 51 are fitted with an interference fit. Preferably, the inner wheel body 531 is made of rubber or soft metal.

[0086] Specifically, two symmetrically arranged arc-shaped elastic rings 532 are welded to the outside of the inner wheel body 531; the two arc-shaped elastic rings 532 are circular ring structures and can undergo elastic deformation. Preferably, the arc-shaped elastic rings 532 are made of rubber, silicone, or thin-walled metal.

[0087] Specifically, a rubber ring 533 is fixedly connected to the outside of the arc-shaped elastic ring 532, and the edge of the rubber ring 533 is fixedly connected to the outer edge of the arc-shaped elastic ring 532; multiple circumferentially distributed elastic elements 534 are arranged in the annular cavity formed by the inner wheel body 531, the two symmetrically arranged arc-shaped elastic rings 532 and the rubber ring 533; when the rotating shaft 51 moves downward, the inner wheel body 531 moves synchronously, the arc-shaped elastic ring 532 and the elastic elements 534 undergo elastic deformation to adapt to the eccentric displacement of the inner wheel body 531, and the rubber ring 533 remains stationary or undergoes slight deformation; after the roller 3 is released, the rotating shaft 51 is reset under the elastic force of the elastic element 534.

[0088] Preferably, the elastic element 544 is a second spring.

[0089] In this embodiment, the inner wheel body 541 is configured to be interference-fitted with the rotating shaft 51, and the eccentric deformation of the compensation wheel is mainly achieved by the deformation of the arc-shaped elastic ring 542 and the elastic element 544 set in the middle layer. During the deformation process, the inner wheel body 541 and the rubber ring 543 deform less, and no gap is generated between the inner wheel body 541 and the rotating shaft 51. The outer rubber ring 543 will also not generate a gap with the outer shell 8, ensuring that the compensation wheel has good sealing and waterproof performance.

[0090] Furthermore, the side of the inner wheel body 531 is in contact with the shoulder of the rotating shaft 51.

[0091] Furthermore, the rubber ring 533 makes sealing contact with the seal 54 and can slide relative to it through friction; or, the rubber ring 533 of the second compensating wheel 53 contacts the first extension of the outer casing 8 and can slide relative to it through friction. This embodiment achieves a good sealing effect and better waterproofing by placing the elastic element 544 within the cavity formed by the two arc-shaped elastic rings 542, and by having the inner wheel 541 and the rubber ring 543 contact the rotating shaft 51 or the outer casing 8 respectively.

[0092] Preferably, to ensure smooth rotation of the compensating wheel in the mounting hole, multiple metal balls (not shown in the figure) can be nested on the outer surfaces of the first compensating wheel 52 and the second compensating wheel 53. The metal balls on the first compensating wheel 52 or the second compensating wheel 53 contact the inner wall surface of the first mounting hole or the second mounting hole. When the first compensating wheel 52 and the second compensating wheel 53 rotate, the metal balls roll and displace along the inner wall surface of the first mounting hole or the second mounting hole. Preferably, the multiple metal balls are evenly distributed on the outer cylindrical surface of the first compensating wheel 52 or the second compensating wheel 53.

[0093] Example 3

[0094] A specific embodiment of the present invention provides a method for controlling an infrared device, employing an infrared device equipped with a rotational eccentricity compensation device; the control method includes the following steps:

[0095] Step S1: After the infrared device is started, the display screen of the infrared device can be adjusted by pressing the scroll wheel 3 and rotating the scroll wheel 3.

[0096] Step S2: When it is necessary to take a photo or record a video, press down the roller 3, and the rotating shaft 51 moves down synchronously and can drive the pressing bracket 56 to move down; the pressing bracket 56 triggers the button on the main board 4 of the circuit to realize the photo or video recording operation;

[0097] Step S3: When the image needs to be zoomed, the roller 3 is turned to rotate it; the roller 3 drives the rotating shaft 51 to rotate, and then adjusts the lens spacing of the lens assembly 1 through the transmission shaft 2 to realize the zooming of the output image of the infrared device.

[0098] In step S2, when the roller 3 is pressed, due to the very small clearance between the pressing bracket 56 and the rotating shaft 51, the roller 3 drives the rotating shaft 51 to move downward, thereby causing the pressing bracket 56 to slide downward relative to the guide frame 55. This triggers the switch on the main circuit board 4 at the pressing part 564 of the pressing bracket 56, thus realizing the button function. At this time, the gear 7 does not rotate, and the second lens 16 of the lens assembly 1 does not change position. After pressing, the rebound force of the first compensation wheel 52 and the second compensation wheel 53 pushes the rotating shaft 51, the transmission shaft 2, the pressing bracket 56, and the roller 3 back to their original positions.

[0099] In step 2, the spring 523, along with the rebound force of the rubber itself, ensures that the internal components of the device will spring back into place after rotation or pressing. The SR5570LB self-lubricating rubber will release oil during rotation to reduce the frictional resistance of the compensation wheel, thereby improving the life of the compensation wheel and making the roller 3 feel better when rotating.

[0100] In step S3, when the roller 3 is rolled, the roller 3 drives the rotating shaft 51 to rotate together, thereby driving the transmission shaft 2 to rotate. The transmission shaft 2 adjusts the position of the second lens 16 through the rotation of the gear 7, thereby adjusting the lens spacing of the lens assembly 1.

[0101] Specifically, in step S3, the lens spacing is adjusted as follows:

[0102] Step S31: The transmission shaft 2 drives the gear 7 to rotate, and the outer sleeve 12 is driven to rotate through the meshing of the gear 7 and the gear plate 121;

[0103] Step S32: During the rotation of the outer sleeve 12, the connecting pin 13 slides along the spiral groove 122, thereby pushing the connecting pin 13 and the lens mounting base 15 to move through the spiral groove 122 of the outer sleeve 12;

[0104] Step S33: When the lens mount 15 moves, it drives the second lens 16 to move, adjusting the distance between the first lens 14 and the second lens 16, thereby realizing the corresponding magnification or reduction command of the image.

[0105] In step S3, when the roller 3 is rotated, the pressure bracket 56 does not rotate because of the clearance fit with the rotating shaft 51, does not participate in the movement, and cannot trigger the switch on the circuit board 4.

[0106] Compared with the prior art, the technical solution provided by the present invention has at least one of the following beneficial effects:

[0107] The infrared device of the present invention uses a compensation wheel to realize the rotation and pressing action of the rotating shaft 51, integrating the functions of the pressing button and the scroll wheel button, reducing the number of operation buttons, and making it more convenient to operate without having to search for buttons when working at night; at the same time, the compensation wheel has a waterproof function, and after the movement is completed, the rebound force of the compensation wheel itself can return all the moved parts in the device to their original positions.

[0108] The infrared device of the present invention restricts the five degrees of freedom of the pressing bracket 56 in terms of forward, backward, left, right and rotation through the guide groove. After the pressing bracket 56 is installed in the guide groove 551, it can only slide up and down, thereby ensuring the accuracy of the displacement direction of the rotating shaft 51.

[0109] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An infrared device with image scaling control function, characterized in that, include: The system comprises a lens assembly (1), a drive shaft (2), a roller (3), a circuit board (4), and an eccentric displacement assembly (5). The roller (3) is mounted on the rotation shaft (51) of the eccentric displacement assembly (5) and can move and rotate synchronously. When the roller (3) is pressed down, the eccentric displacement assembly (5) undergoes eccentric displacement, and the pressing bracket (56) of the eccentric displacement assembly (5) can touch the button on the circuit board (4) to realize short press to take a picture and long press to record a video. When the roller (3) rotates, it can drive the rotation shaft (51) and the drive shaft (2) to rotate synchronously. When the drive shaft (2) rotates, it can adjust the lens spacing of the lens assembly (1) to realize the scaling of the image. The eccentric displacement assembly (5) further includes: a first compensation wheel (52), a second compensation wheel (53), and a guide frame (55); the rotating shaft (51) is rotatably mounted on the housing (8) of the infrared device via the first compensation wheel (52) and the second compensation wheel (53); both the first compensation wheel (52) and the second compensation wheel (53) are elastic structures; the guide frame (55) is disposed inside the housing (8) and the two are fixedly connected; the lowering bracket (56) is slidably mounted on the guide frame (55); when the rotating shaft (51) is displaced, it can drive the lowering bracket (56) to slide relative to the guide frame (55); The first compensation wheel (52) includes: a rubber wheel body (521) and a spring (523); the rubber wheel body (521) is sleeved on the outside of the rotating shaft (51) and is interference-fitted; an annular groove (522) is provided on the side of the rubber wheel body (521), and a spring (523) is installed between the two sides of the annular groove (522); multiple springs (523) are arranged circumferentially in the annular groove (522), and the axial direction of the springs (523) is perpendicular to that of the rubber wheel body (521). The radial directions of 521 coincide; when the roller (3) presses down, the rotating shaft (51) moves downward synchronously with the roller (3), the first compensation wheel (52) and the second compensation wheel (53) deform, the spring (523) located below the rotating shaft (51) is compressed, and the spring (523) located above the rotating shaft (51) is stretched. The eccentric deformation of the first compensation wheel (52) and the second compensation wheel (53) adapts to the displacement of the rotating shaft (51) pressing down, while maintaining the sealing effect on the inner cavity of the equipment. The first compensation wheel (52) and the second compensation wheel (53) have the same structure.

2. The infrared device with image scaling control function according to claim 1, characterized in that, The drive shaft (2) is fixedly connected to the rotating shaft (51).

3. The infrared device with image scaling control function according to claim 2, characterized in that, The roller (3) has a U-shaped hole (31) in the middle; the rotating shaft (51) is sleeved and installed in the U-shaped hole (31) of the roller (3).

4. The infrared device with image scaling control function according to claim 1, characterized in that, The lens assembly (1) includes: a lens positioning cylinder (11), a first lens (14), a displacement conversion mechanism, and a second lens (16); the displacement conversion mechanism can convert rotational motion into linear motion; the first lens (14) is fixedly installed in the lens positioning cylinder (11); the second lens (16) is slidably installed in the lens positioning cylinder (11) through the displacement conversion mechanism.

5. The infrared device with image scaling control function according to claim 4, characterized in that, A gear (7) is fixedly installed at the end of the drive shaft (2); when the gear (7) rotates, it can drive the second lens (16) to move through the displacement conversion mechanism.

6. The infrared device with image scaling control function according to claim 5, characterized in that, Both the first compensation wheel (52) and the second compensation wheel (53) are made of rubber.

7. A method for controlling an infrared device, characterized in that, The method is applicable to the infrared device with image scaling control function as described in any one of claims 1-6; the control method includes the following steps: Step S1: After the infrared device is started, the display screen of the infrared device is adjusted by pressing the roller (3) and rotating the roller (3); Step S2: When it is necessary to take a photo or record a video, press down the roller (3), and the rotating shaft (51) moves down synchronously and can drive the pressing bracket (56) to move down; the pressing bracket (56) triggers the button on the main board (4) of the circuit to realize the photo or video recording operation; Step S3: When the image needs to be scaled, turn the roller (3) to rotate it; the roller (3) drives the rotating shaft (51) to rotate, and then adjusts the lens spacing of the lens assembly (1) through the transmission shaft (2) to realize the scaling of the output image of the infrared device.

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