View finder with distance sensing function
By activating the viewfinder display module through distance sensing and human infrared sensors, and combining it with an adjustable focus eyepiece assembly, the problems of power waste and observation difficulties in thermal imaging leak detector viewfinders are solved, achieving the effects of power saving and clear observation.
Patent Information
- Application Number
- CN202423158273.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing thermal imaging leak detectors' viewfinders continue to operate when not in use, wasting power. Furthermore, observers with varying degrees of myopia need to wear glasses to clearly observe the images, and they are easily affected by strong external light.
The viewfinder employs distance sensing, equipped with a distance sensor and a human infrared sensor. It only wakes up the display module when the human eye is observing, and combined with an adjustable eyepiece assembly and a flexible circuit board, it achieves power saving and clear observation.
It achieves standby mode when not in use to save power, adapts to naked-eye observation of different myopia degrees, reduces external light interference, and improves the observation effect.
Smart Images
Figure CN223808040U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to leak detector technical field especially, it relates to a finder with distance response. BACKGROUND
[0002] Thermal imaging leak detector has the imaging leak detection characteristic of non-contact, is widely used in petroleum, chemical industry, gas etc. industry, it utilizes the energy change when gas leaks, carries out imaging and finds the track of gas, and finds the position of gas leak in advance.
[0003] At present, the finder of thermal imaging leak detector is in working state when the user does not observe, and the electric quantity of equipment is wasted. In addition, the image observed by the existing finder needs to be clearly seen with glasses for the observer with different myopia degrees, and the eyes of the observer cannot directly contact the protective goggles due to the interval of glasses, and it is not conducive to observing the specific target when encountering external strong light interference. UTILITY MODEL CONTENT
[0004] The utility model provides a finder with wake -up function, make only in the human eye observation wake -up finder, save the electric quantity of equipment.
[0005] The utility model adopts the following technical scheme:
[0006] The finder with distance response includes an eyepiece assembly, a distance sensor assembly is arranged at the observation end of the eyepiece assembly, the distance sensor assembly is connected with a soft rubber protective goggles, the other end opposite to the observation end is connected with a display module assembly, and the display module assembly is connected with an image signal acquisition module of a leak detector through a cable.
[0007] The display module assembly includes a controller and a display module arranged on a circuit board, the input end of the display module is connected with the output end of the image signal acquisition module of the leak detector, the distance sensor assembly includes a distance sensor, and when a person approaches or moves away from the distance sensor, an electric signal is transmitted to the controller to wake up or extinguish the display module.
[0008] As an improvement of the above scheme, the eyepiece assembly includes an eyepiece, a support shell sleeved outside the eyepiece, and a focusing wheel sleeved outside the support shell, an adjusting column is fixedly arranged on the outer wall of the eyepiece and extends outward in the radial direction, a spiral line-shaped limiting guide hole is arranged on the main body of the support shell, the spiral line is coaxial with the circular tubular support shell, a long groove is arranged on the inner wall of the focusing wheel in the direction parallel to the axis of the focusing wheel, the adjusting column is inserted into the long groove through the limiting guide hole, and under the condition that the eyepiece adjusting wheel rotates, the adjusting column moves along the track of the limiting guide hole, and the eyepiece moves axially in the support shell.
[0009] As an improvement of the above scheme, the distance sensor assembly further comprises a second housing, a sensor support frame is fixed on the end face of the support shell of the proximity distance sensor assembly, a protective shell is arranged on the support frame, the distance sensor and a pressing block for pressing the distance sensor against the protective window are arranged in the protective shell.
[0010] The second housing is provided with a groove, and the inner wall of the soft rubber protective cover is provided with a containing portion for containing the protective shell; the soft rubber protective cover is fixed on the end face of the support shell of the proximity distance sensor assembly in sequence through the bolts of the second housing and the sensor support frame. In this scheme, the distance sensor is hidden in the second housing and the soft rubber protective cover, and is not disturbed by external strong light during observation, which is more conducive to observing specific targets.
[0011] As an improvement of the above scheme, the eyepiece assembly comprises a first housing sleeved outside the eyepiece adjusting wheel, and notches are arranged on the two opposite surfaces of the first housing, and the outer wall of the adjusting wheel partially protrudes out of the notches.
[0012] As an improvement of the above scheme, the end face of the support shell of the proximity display module assembly is inserted into the interior of the first housing, the end face of the support shell abuts against the micro-screen baffle of the first housing, and the micro-screen baffle in the direction of the display module is inserted into the bolt and is threadedly connected with the abutting end face of the support shell.
[0013] As an improvement of the above scheme, the display module assembly comprises a third housing, the third housing and the first housing and the micro-screen baffle enclose a space, and a circuit board is arranged in the space, and a cable is led out from the circuit board and is led out from a cable outlet on the third housing to be connected with the image signal acquisition module of the finder and the leak detector.
[0014] As an improvement of the above scheme, the third housing is further provided with a hinge shaft with good damping characteristics, one end of the hinge shaft is connected with the third housing, and the other end of the hinge shaft is connected with a connecting seat of the leak detector, so that the finder and the leak detector can rotate relative to each other.
[0015] As an improvement of the above scheme, a groove is arranged on the outer wall of the support shell for placing a flexible circuit board, and the flexible circuit board is connected with the distance sensor and the controller.
[0016] As an improvement of the above scheme, a second protective shell is further arranged on the sensor support frame, a human body infrared sensor is arranged in the second protective shell, the human body infrared sensor is connected with the controller through a flexible circuit board arranged in another groove on the outer wall of the support shell, and the controller receives signals of the distance sensor and the human body infrared sensor, and detects a human body within a preset distance range to wake up or turn off the display module.
[0017] Advantages
[0018] 1)The utility model discloses a distance sensor component detects that the person is close or far from the distance sensor, and the electric signal is transmitted to the controller to wake up or extinguish the display module, so that the finder is in standby state when no longer using, to save the electric quantity.
[0019] 2)The distance sensor is hidden in the finder soft rubber sheath, and is not interfered by the outside strong light when observing, and is more favorable to the observation of specific target.
[0020] 3)The distance between the ocular lens assembly and the micro screen is adjusted to change the continuous diopter conversion in a certain range, so that the myopic people can directly watch the effect in the viewfinder without wearing glasses.
[0021] 4)The groove arranged on the outer wall of the supporting shell is used for placing the flexible circuit board, and the distance sensor and the controller are electrically connected, so that the distance sensor signal transmission is realized without affecting the rotation of the focusing wheel.
[0022] 5)The third shell of the display module assembly is provided with a hinge shaft connected with the leak detector connecting seat, so that the stepless angle adjustment of the observation angle can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is an assembly structure schematic view of the finder with distance sensing provided by the utility model embodiment.
[0024] Figure 2 It is a circuit structure schematic view of the quick-release battery structure of the leak detector.
[0025] Figure 3 It is one of the explosion structure schematic views of the quick-release battery structure of the leak detector.
[0026] Figure 4 It is a supporting shell structure schematic view of the finder with distance sensing provided by the utility model embodiment.
[0027] Figure 5 It is the second of the explosion structure schematic views of the quick-release battery structure of the leak detector.
[0028] Figure 6 It is a cut structure schematic view of the quick-release battery structure of the leak detector along the adjusting wheel axis parallel to the top surface of the shell. DETAILED DESCRIPTION
[0029] The technical scheme in the utility model embodiment will be clearly and completely described in combination with the drawings in the utility model embodiment.
[0030] Refer to Figure 1It is a kind of finder assembly structure schematic diagram with distance induction provided by the utility model embodiment. The finder with distance induction includes eyepiece assembly 1, distance sensor assembly 2 is connected in the observation end of eyepiece assembly, and distance sensor assembly is connected silica gel eye shield 3. The other end relative to the observation end, eyepiece assembly is connected display module assembly 4. The cable 5 of display module assembly is electrically connected with the image signal acquisition module 6 of leak detector.
[0031] Distance sensor assembly includes distance sensor 21, display module assembly includes controller 41 and display module 42 arranged on circuit board 40, and the display module of the embodiment is micro screen, the eyepiece has the function of zooming, and micro screen (Micro oled) is on the optical focal plane of the eyepiece, so that the visual effect observed is similar to the effect of a large LCD. The output end of the image signal acquisition module of leak detector is connected to the input end of the finder display module. When the distance sensor detects that someone approaches the silica gel eye shield, an electrical signal is generated and transmitted to the controller, which controls the micro screen to wake up; when the distance sensor detects that no one approaches, an electrical signal is generated and transmitted to the controller, which controls the micro screen to sleep; so that the micro screen is in standby state when the finder is not used, so as to save power.
[0032] The eyepiece assembly includes eyepiece 11, support shell 12 sleeved outside the eyepiece, focusing wheel 13 sleeved outside the support shell, and first housing 14 sleeved outside the eyepiece adjusting wheel. The outer wall of the eyepiece is fixedly provided with adjusting column 111 extending outward in the radial direction, the main body of the support shell is provided with spiral line limiting guide hole 121, the spiral line is coaxial with the circular tube-shaped support shell, and long groove 131 is arranged on the inner wall of the focusing wheel in the direction parallel to the axis of the focusing wheel. The first housing is provided with notches 141 on the opposite two surfaces, so that part of the outer wall of the adjusting wheel protrudes out of the notches, facilitating manual rotation of the adjusting wheel. The adjusting column is inserted into the long groove through the limiting guide hole, so that the eyepiece adjusting wheel drives the adjusting column to move along the track of the limiting guide hole in the rotating condition, the eyepiece moves axially in the support shell, the distance between the eyepiece lens and the micro screen is adjusted, a certain range of continuous diopter conversion is achieved, and people with myopia can directly watch the effect in the viewfinder without wearing glasses. In the embodiment, the micro screen displays an image of 0.49 inches, which can be enlarged to 12 times, i.e. an image of 6 inches, through the adjustment of the position of the eyepiece, so that people with different myopia can see the image with naked eyes. The embodiment scheme can clearly see the image under 600 degrees of myopia.
[0033] The outer wall of the support shell is provided with groove 122 for placing flexible circuit board FPC (full name: Flexible Printed Circuit), and the distance sensor and the controller are located at both ends of the eyepiece assembly, and the distance sensor and the controller are connected through the flexible circuit board 204, without affecting the rotation of the focusing wheel.
[0034] The distance sensor assembly further comprises a second shell 22, a sensor support frame 23 is fixed on the support shell end face 123 of the proximity distance sensor assembly, a protective shell 24 is arranged on the support frame, the distance sensor 21 and the pressing block 26 for pressing the distance sensor on the protective window 25 are arranged in the protective shell 24. Optionally, a second protective shell is arranged on the sensor support frame, and a human body infrared sensor is arranged in the second protective shell, which is used for detecting whether the object close to the silica gel goggle is a human body, so that the micro screen is started to brighten or dim when any object is close to the silica gel goggle. The human body infrared sensor can also be connected to the controller 41 through the flexible circuit board arranged in another groove on the outer wall of the support shell. The controller receives the signals of the distance sensor and the human body infrared sensor, and detects the human body through logical operation, and controls the micro screen to brighten or dim in the preset distance range.
[0035] The second shell is provided with a groove 221, and the silica gel goggle is provided with a containing part 31 for containing the protective shell 24 on the inner wall of the silica gel goggle. The silica gel goggle is fixed on the support shell end face of the proximity distance sensor assembly through bolts in sequence with the second shell and the sensor support frame.
[0036] The support shell end face 124 of the proximity display module assembly is inserted into the first shell, the support shell end face abuts against the micro screen baffle 142 of the first shell, and the bolt inserted into the micro screen baffle in the direction of the display module is threadedly connected with the abutting support shell end face.
[0037] The display module assembly comprises a third shell 43, the third shell is arranged with the circuit board in the space surrounded by the first shell 14 and the micro screen baffle, the cable 44 is led out from the circuit board and connected with the image signal acquisition module 6 of the image finder and the leak detector through the wire outlet 45 on the third shell. The third shell is further provided with a hinge shaft 46 with good damping characteristics, one end of the hinge shaft is connected with the third shell, and the other end is connected with the connecting seat of the leak detector, so that the image finder and the leak detector can rotate relative to each other and can be positioned at a certain rotating position, and the stepless angle adjustment of the observation angle can be realized.
[0038] The above is the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements are also regarded as the protection range of the utility model.
Claims
1. A finder with distance sensing, characterized in that The eyepiece assembly is connected with a distance sensor assembly at an observation end of the eyepiece assembly, the distance sensor assembly is connected with a soft rubber protective eyeshield, the eyepiece assembly is connected with a display module assembly at the other end of the observation end, and the display module assembly is electrically connected with an image signal acquisition module of a leak detector through a cable. The display module assembly comprises a controller and a display module arranged on a circuit board, and an input end of the display module is connected with an output end of the image signal acquisition module of the leak detector.
2. The finder with distance sensing according to claim 1, wherein, The eyepiece assembly comprises an eyepiece, a supporting shell sleeved outside the eyepiece, and a focusing wheel sleeved outside the supporting shell; an adjusting column is fixedly arranged on an outer wall of the eyepiece and extends outward in a radial direction, a spiral limiting guide hole is arranged on a main body of the supporting shell, the spiral line is coaxial with the circular tubular supporting shell, a long groove is arranged on an inner wall of the focusing wheel in a direction parallel to an axis of the focusing wheel; the adjusting column is inserted into the long groove through the limiting guide hole, and the eyepiece adjusting wheel drives the adjusting column to move along a track of the limiting guide hole in a rotating state, and the eyepiece moves axially in the supporting shell.
3. The finder with distance sensing according to claim 2, wherein, The distance sensor assembly further comprises a second housing, a sensor support frame is fixed on an end face of the supporting shell of the distance sensor assembly, a protection shell is arranged on the support frame, and the distance sensor and a pressing block for pressing the distance sensor against the protection window are arranged in the protection shell.
4. The finder with distance sensing according to claim 3, wherein, The second housing is provided with a groove, and a containing portion for containing the protection shell is arranged on an inner wall of the soft rubber protective eyeshield; the soft rubber protective eyeshield is fixed on the end face of the supporting shell of the distance sensor assembly through bolts in sequence with the second housing and the sensor support frame.
5. The finder with distance sensing according to claim 2, wherein, The eyepiece assembly comprises a first housing sleeved outside the eyepiece adjusting wheel, notches are arranged on opposite two faces of the first housing, and a part of an outer wall of the adjusting wheel protrudes out of the notches.
6. The finder with distance sensing according to claim 5, wherein, The end face of the supporting shell close to the display module assembly is inserted into the interior of the first housing, the end face of the supporting shell abuts against the micro-screen baffle of the first housing, and a bolt inserted into the micro-screen baffle in the direction of the display module is threadedly connected with the abutting end face of the supporting shell.
7. The finder with distance sensing according to claim 6, wherein, The display module assembly comprises a third housing, the third housing and the first housing and the micro-screen baffle enclose a space in which a circuit board is arranged, a cable is led out from the circuit board and led out from a cable outlet on the third housing to connect the image signal acquisition module of the leak detector.
8. The finder with distance sensing according to claim 7, wherein, A hinge shaft with good damping characteristics is further arranged on the third housing, one end of the hinge shaft is connected with the third housing, the other end of the hinge shaft is connected with a connecting seat of the leak detector, so that the image finder and the leak detector can rotate relative to each other.
9. The finder with distance sensing according to claim 2, wherein, A groove is arranged on an outer wall of the supporting shell for placing a flexible circuit board, and the flexible circuit board is connected with the distance sensor and the controller.
10. The finder with distance sensing according to claim 3, wherein, A second protection shell is further arranged on the sensor support frame, a human body infrared sensor is arranged in the second protection shell, the human body infrared sensor is connected with the controller through a flexible circuit board arranged in another groove on the outer wall of the supporting shell, and the controller wakes up or turns off the display module when the distance sensor and the human body infrared sensor signal are received and a human body within a preset distance range is detected.