Calibration device capable of automatically displaying detection range of flame meter

By combining a turntable positioning base and a camera and laser ranging module driven by a gimbal motor, the problem of accurately displaying the detection range of the flame detector was solved, and accurate display of high and low sensitivity field of view was achieved, reducing construction difficulty and personnel hazards.

CN224082085UActive Publication Date: 2026-04-03WUXI GENERAL MONITORS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing flame detectors cannot accurately display the detection range and the high and low sensitivity field of view at different angles, resulting in inaccurate installation and potentially creating blind spots.

Method used

It adopts a combination of a turntable positioning base, a gimbal motor, a camera module, and a laser ranging module. Through automatic rotation and laser ranging, combined with camera shooting, it generates a precise detection range map.

Benefits of technology

It achieves accurate display of the detection range of flame detectors, reduces construction difficulty and personnel risks, ensures blind-spot-free coverage, and provides high and low sensitivity field maps.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a calibration device capable of automatically displaying the detection range of a flame meter, which comprises a turntable positioning seat, a needle bearing in interference fit connection is arranged on the surface of the turntable positioning seat, and a holder motor fixedly connected through a first inner hexagonal cross screw is arranged in a groove of the turntable positioning seat. A rotating disc fixedly connected through a fifth inner hexagonal screw is arranged on a rotor of the holder motor, a copper stud and a damping rotating shaft are further arranged on the rotating disc, a camera module fixedly connected through a first cross round head screw is arranged on the copper stud, and a rotating shaft rod is fixedly connected to the damping rotating shaft. The rotating shaft rod is provided with a laser ranging mounting plate which is fixedly connected through a second cross-shaped round head screw, and the laser ranging mounting plate is provided with a laser ranging module which is fixedly connected through a third cross-shaped round head screw.
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Description

Technical Field

[0001] This utility model belongs to the field of flame detector technology, and more specifically, it relates to a calibration device that automatically displays the detection range of a flame detector. Background Technology

[0002] Each flame detector has a specific detection range; exceeding this range creates a blind spot. In locations where flame detectors need to be installed, the detection range of each instrument must be displayed to determine the required number of instruments and ensure no blind spots. By displaying the detection range, the angle of the instruments can be determined, minimizing the number of instruments required and guaranteeing no blind spots.

[0003] Currently, the detection range can only be roughly estimated based on the installation direction of the instrument, and it cannot accurately display the detection range map, let alone accurately show the high and low sensitivity field of view maps at different angles. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a calibration device that automatically displays the detection range of a flame gauge, solving the problem of fuzzy prediction of the instrument's detection range. It can also display high and low sensitivity field-of-view diagrams at different angles and capture photos of the detection range through a camera module.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a calibration device for automatically displaying the detection range of a flame gauge, comprising a turntable positioning seat, wherein the surface of the turntable positioning seat is provided with an interference-fit needle roller bearing, and a gimbal motor is fixedly connected to the groove of the turntable positioning seat by a first hexagonal head screw; the rotor of the gimbal motor is provided with a turntable fixedly connected by a fifth hexagonal head screw; the turntable is also provided with a copper stud and a damping shaft, the copper stud is provided with a camera module fixedly connected by a first Phillips head screw, the damping shaft is fixedly connected with a shaft rod, the shaft rod is provided with a laser ranging mounting plate fixedly connected by a second Phillips head screw, the laser ranging mounting plate is provided with a laser ranging module fixedly connected by a third Phillips head screw; the turntable has side plates fixed by the first hexagonal head screw on both sides, the side plates are provided with a camera plate, a side plate, a laser ranging cover plate, a base plate and an acrylic window fixedly connected by the second hexagonal head screw; the side plates are also fixed to the shaft rod by a third hexagonal head screw and a shoulder screw of equal height.

[0006] Preferably, the gimbal motor is provided with a USB interface connected via a second internal hexagonal Phillips screw.

[0007] Preferably, the data cable between the camera module and the laser ranging module is connected to the motor drive board via a slip ring on the gimbal motor.

[0008] Preferably, the camera module is located at the center of the turntable positioning seat, and the turntable positioning seat rotates around the center of the camera module to operate in coordination.

[0009] Preferably, an instrument panel is provided below the turntable positioning seat, and the turntable positioning seat is fixedly connected to the instrument panel housing cover plate by a fourth hexagonal screw.

[0010] This utility model provides a calibration device for automatically displaying the detection range of a flame gauge, which has the following features:

[0011] Beneficial effects:

[0012] 1. Based on the traditional instrument's working range, which can only be estimated, the instrument adds features such as angle adjustment, automatic rotation, laser ranging, and on-site photography. This allows the instrument's detection range to be directly displayed on the computer, greatly reducing the risk factor for on-site construction personnel and simplifying the task of adjusting the instrument's detection angle to ensure full coverage.

[0013] 2. The laser rangefinder and camera are fixed as a module on the turntable, which is fixed to the rotor of the gimbal motor. The turntable positioning seat is fixed to the instrument surface to ensure concentricity. The stator of the gimbal motor is fixed in the fixed plate. The rotation of the gimbal motor drives the turntable to rotate the laser rangefinder module. The camera module is always at the center. It takes a picture every time it rotates by an angle. The pictures containing the laser are combined into one image after one rotation and the detection range picture is output. After the operation is completed, the gimbal motor will automatically return to its original position to ensure that no rotational torque is applied to the data cable, which may cause the data cable to break.

[0014] 3. The turntable is equipped with a boss that presses against the needle roller bearing, ensuring uniform pressure on the circumferential motion plane of the turntable, smooth rotation, and preventing it from deviating from the track. This design is simple and reasonable.

[0015] 4. The laser ranging module has an adjustable angle and can display instrument detection field of view diagrams with different sensitivities at three angles. It has two angle field of view diagrams, one for high sensitivity and one for low sensitivity, which is more reasonable, simple and reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a side view of the internal structure of this utility model.

[0018] Figure 3 This is a side view of the internal structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the gimbal motor installation of this utility model.

[0020] In the diagram, 1. First hex socket head cap screw; 2. Equal height shoulder screw; 3. Third hex socket head cap screw; 4. Second hex socket head cap screw; 5. USB interface; 6. Second hex socket head cap Phillips head screw; 7. Fourth hex socket head cap screw; 8. Camera module; 9. Camera board; 10. First Phillips head round head screw; 11. Side plate; 12. Fifth hex socket head cap screw; 13. Laser rangefinder cover plate; 14. Third Phillips head round head screw; 15. Second Phillips head round head screw; 16. Laser rangefinder mounting plate; 17. Laser rangefinder module; 18. Acrylic window; 19. Base plate; 20. Side plate; 21. Copper stud; 22. Turntable; 23. Gimbal motor; 24. Needle roller bearing; 25. Turntable positioning seat; 26. First hex socket head cap Phillips head screw; 27. Rotating shaft; 28. Damping rotating shaft. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: a calibration device for automatically displaying the detection range of a flame gauge, including a turntable positioning seat 25. The surface of the turntable positioning seat 25 is provided with an interference-fit needle roller bearing 24, which helps to ensure uniform force distribution on the plane of the turntable 22 positioning seat, preventing offset or jamming, and also ensuring smooth rotation and convenient operation. A gimbal motor 23 is fixedly connected to the groove of the turntable positioning seat 25 by a first hexagonal Phillips head screw 26. The external part of the gimbal motor 23 is provided with a USB interface 5 connected by a second hexagonal Phillips head screw 6. The rotor of the gimbal motor 23 is equipped with a turntable 22 fixedly connected by a fifth hexagon socket screw 12. The turntable 22 also has a copper stud 21 and a damping shaft 28. A camera module 8 is fixedly connected to the copper stud 21 by a first Phillips head screw 10. The data cable between the camera module 8 and the laser ranging module 17 is connected to the motor drive board via a slip ring of the gimbal motor 23. The camera module 8 is located at the center of the positioning seat on the turntable 22. The turntable positioning seat 25 rotates around the center of the camera module 8 to ensure the camera's shooting angle remains constant. A rotating shaft 27 is fixedly connected to the damping shaft 28. A laser ranging mounting plate 16 is fixedly connected to the rotating shaft 27 by a second Phillips head screw 15. The laser ranging mounting plate 16 is fixedly connected to the laser ranging module 17 by a third Phillips head screw 14. The turntable 22 has side plates 20 fixed to both sides by first hex socket screws 1. The side plates 20 are equipped with a camera plate 9, a side plate 11, a laser rangefinder cover plate 13, a base plate 19, and an acrylic window 18, all fixedly connected by second hex socket screws 4. The acrylic window 18 ensures that the laser rangefinder module 17 is not obstructed from emitting or receiving laser light when its angle is adjusted. The side plates 20 are also fixed to the rotating shaft 27 by third hex socket screws 3 and equal-height shoulder screws 2. Two equal-height shoulder screws 2 are fixed in the upper oblong hole as angle adjustment handles.

[0025] The instrument panel is located below the positioning seat of turntable 22. The positioning seat of turntable 22 is fixedly connected to the instrument panel housing cover plate by the fourth internal hex screw 7. Three set screws clamp the positioning seat of turntable 22 to the instrument panel housing cover, so that the force is evenly distributed and the stability is increased.

[0026] The specific usage and function of this embodiment are as follows: Before operation, loosen the third hex socket screw 3, adjust the equal-height shoulder screw 2, select a suitable angle, and fix the hex socket screw in the corresponding hole; the controller starts the gimbal motor 23 through the USB interface 5, and the laser ranging module 17 rotates around the camera module 8 in a circular motion. The laser line of the laser ranging module 17 continuously draws lines on site, and the camera module 8 takes pictures at certain angles. Finally, all the pictures are combined into one picture, and the detection range map is output. Finally, the gimbal is electrically reset to prevent the data cable from being twisted and broken. The laser ranging module 17 and the camera module 8 are fixed as a module on the turntable positioning seat 25, and the turntable 22 is fixed on the rotor of the gimbal motor 23. The turntable positioning seat 25 is fixed to the instrument surface to ensure concentricity, and the stator of the gimbal motor 23 is fixed in the fixed plate. The rotation of the gimbal motor 23 drives the turntable 22 to rotate the laser ranging module 17. The camera module 8 is always at the center. It takes a picture every time it rotates at an angle. The pictures containing laser light from one rotation are combined into one picture, and the detection range picture is output. After operation, the gimbal motor 23 will automatically return to its original position, ensuring that no rotational torque is applied to the data cable, thus preventing the data cable from breaking. The laser ranging module 17 has an adjustable angle and can display instrument detection field of view maps with different sensitivities at three angles. It also has high-sensitivity and low-sensitivity angle field of view maps at the top and bottom, which is more reasonable, simple and reliable.

[0027] Based on the traditional method of estimating the working range of instruments, this invention adds features such as angle adjustment, automatic rotation, laser ranging, and on-site photography. This allows the instrument's detection range to be directly displayed on a computer, greatly reducing the risk to on-site construction personnel and simplifying the task of adjusting the instrument's detection angle to ensure full coverage.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A calibration device for automatically displaying the detection range of a flame gauge, comprising a turntable positioning seat (25), wherein the surface of the turntable positioning seat (25) is provided with an interference-fit needle roller bearing (24), characterized in that: The groove of the turntable positioning seat (25) is provided with a gimbal motor (23) fixedly connected by a first internal hexagonal head screw (26); the rotor of the gimbal motor (23) is provided with a turntable (22) fixedly connected by a fifth internal hexagonal head screw (12); the turntable (22) is also provided with a copper stud (21) and a damping shaft (28), the copper stud (21) is provided with a camera module (8) fixedly connected by a first cross-head screw (10), the damping shaft (28) is fixedly connected with a shaft rod (27), and the shaft rod (27) is fixedly connected by a second cross-head screw (15). A laser ranging mounting plate (16) is connected, and a laser ranging module (17) is fixedly connected by a third cross-head screw (14) on the laser ranging mounting plate (16); the turntable (22) has side plates (20) fixed by a first internal hex screw (1) on both sides, and a camera plate (9), a side plate (11), a laser ranging cover plate (13), a bottom plate (19) and an acrylic window (18) are fixedly connected by a second internal hex screw (4); the side plate (20) is fixed to the rotating shaft (27) by a third internal hex screw (3) and an equal-height shoulder screw (2).

2. The calibration device for automatically displaying the detection range of a flame gauge according to claim 1, characterized in that: The gimbal motor (23) is externally equipped with a USB interface (5) that is connected via a second internal hexagonal cross screw (6).

3. The calibration device for automatically displaying the detection range of a flame gauge according to claim 1, characterized in that: The data lines between the camera module (8) and the laser ranging module (17) are connected to the motor drive board via the slip ring of the gimbal motor (23).

4. The calibration device for automatically displaying the detection range of a flame gauge according to claim 1, characterized in that: The camera module (8) is located at the center of the turntable (22) positioning seat, and the turntable positioning seat (25) rotates around the center of the camera module (8) to perform matching operations.

5. The calibration device for automatically displaying the detection range of a flame gauge according to claim 1, characterized in that: The turntable positioning seat (25) is provided with an instrument panel below it. The turntable positioning seat (25) is fixedly connected to the instrument panel housing cover plate by a fourth internal hex screw (7).