Lamp light radiation safety testing device
By setting a rotating frame and a fixing fixture at the bottom of the integrating sphere, the rotation adjustment and stable fixation of the integrating sphere can be achieved, which solves the inconvenience caused by the obstruction of the spectroradiometer or wall, and improves the convenience and accuracy of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO LIXUN STANDARD TECH SERVICE CO LTD
- Filing Date
- 2025-07-26
- Publication Date
- 2026-07-10
AI Technical Summary
Large integrating spheres are often obstructed by spectroradiometers or walls, requiring the sphere to be moved when adjusting or checking the probe, which is inconvenient and affects test accuracy.
By setting a rotating frame at the bottom of the support frame, the integrating sphere is driven to rotate along the longitudinal axis. Combined with the fixing clamp to fix the integrating sphere, the movement of the entire integrating sphere is avoided, thus realizing convenient adjustment and stable fixation of the probe.
It solves the problem of inconvenient operation of large integrating spheres, saves manpower and time, ensures the stability and accuracy of testing, and avoids equipment damage and test result deviations caused by movement.
Smart Images
Figure CN224480234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical radiation testing technology, and in particular to a light fixture optical radiation safety testing device. Background Technology
[0002] In existing technologies, lighting fixture light radiation safety testing devices are typically used to detect the light radiation parameters of various lighting fixtures to assess whether they meet relevant safety standards. These devices generally include structures for fixing and supporting the testing components, as well as core components for collecting light radiation information. Among these, the integrating sphere, as an important optical testing device, is widely used in lighting fixture light radiation testing. The integrating sphere has a highly reflective inner wall, which can reflect light multiple times, creating a uniform light field within the sphere. This enables efficient and accurate measurement of lighting fixture light radiation. It can be used to measure key parameters such as the spectral power distribution, radiant flux, and color coordinates of lighting fixtures, and is one of the core devices ensuring the accuracy of lighting fixture light radiation safety testing.
[0003] In practical testing scenarios, large integrating spheres are often used in conjunction with spectroradiometers to achieve accurate analysis of light radiation. However, high-precision spectroradiometers are typically large, and to ensure stable signal transmission and reduce external interference, the integrating sphere and spectroradiometer are placed close together. Furthermore, due to space limitations in testing rooms or laboratories, the integrating sphere is usually mounted against a wall. This results in a narrow operating space on the side of the integrating sphere closest to the spectroradiometer or wall when adjustments or checks are needed, making it difficult for operators to directly access the probe. In such cases, existing equipment often requires moving the entire integrating sphere to expose the obscured probe. However, large integrating spheres are bulky and heavy, making movement extremely inconvenient. This not only consumes significant manpower and time but may also affect the installation accuracy of the integrating sphere due to vibrations during movement, thus adversely impacting subsequent test results. Utility Model Content
[0004] The main purpose of this invention is to provide a light radiation safety testing device for lamps, which aims to solve the problem of inconvenience caused by the need to move the integrating sphere when adjusting or inspecting the probe due to the large integrating sphere being blocked by a spectroradiometer or a wall.
[0005] To achieve the above objectives, this utility model proposes a lighting fixture light radiation safety testing device, comprising an integrating sphere and a support frame. The support frame is located at the bottom of the integrating sphere. The integrating sphere includes a fixed hemisphere and a movable hemisphere. The support frame is fixedly connected to the fixed hemisphere. The support frame is fixedly connected to a movable track. The movable hemisphere is provided with movable wheels, which move along the movable track. A rotating frame is provided at the bottom of the support frame. The support frame slides on the rotating frame, causing the integrating sphere to rotate along the longitudinal axis. A fixing clamp is provided between the rotating frame and the support frame.
[0006] In one possible implementation, the rotating frame includes a rotating ring and several supporting legs, the supporting legs being fixedly connected to the bottom of the rotating ring, and the rotating ring having a rectangular cross-section.
[0007] In one possible implementation, a number of rollers are fixedly connected to the bottom of the support frame, the rollers are rotatably connected to the rotating frame, and a limiting structure is provided between the rotating frame and the support frame to prevent the rollers from disengaging from the rotating frame.
[0008] In one possible implementation, the limiting structure includes a support ring plate, which is fixedly connected to a support frame. The support ring plate is located inside the rotating ring body, and a plurality of side pulleys are fixedly connected to the outer side of the support ring plate. The side pulleys are rotatably connected to the inner side of the rotating ring body.
[0009] In one possible embodiment, the fixing clamp includes an upper clamping plate, a lower clamping plate, and a drive screw. The lower clamping plate is fixedly connected to the bottom of the support frame. One end of the drive screw is rotatably connected to the lower clamping plate. The drive screw is located outside the rotating ring. The upper clamping plate abuts against the side of the rotating ring away from the support frame. The upper clamping plate is threadedly connected to the drive screw. A limiting structure is provided between the upper and lower clamping plates to limit the upper clamping plate and enable the drive screw to drive the upper clamping plate to move linearly. An anti-slip plate is fixedly connected to the side of the upper clamping plate facing the rotating ring to increase the friction between the upper clamping plate and the rotating ring. A rotating handle is fixedly connected to the end of the drive screw away from the lower clamping plate.
[0010] In one possible implementation, the limiting structure includes a limiting boss and two limiting plates. The limiting boss is located at the end of the upper clamping plate opposite to the outer side of the rotating ring. The limiting boss is fixedly connected to the upper clamping plate. The two limiting plates are fixedly connected to the lower clamping plate. The limiting plates are perpendicular to the side of the lower clamping plate facing the upper clamping plate. The limiting boss is located between the two limiting plates. Both sides of the limiting boss are slidably connected to the two limiting plates respectively. The driving screw is located between the two limiting plates. The upper clamping plate is threadedly connected to the driving screw through the limiting boss.
[0011] The working principle and beneficial effects of this utility model are as follows:
[0012] This invention solves the problem of moving large integrating spheres by installing a rotating frame at the bottom of the support frame, allowing the support frame to slide on the rotating frame and drive the integrating sphere to rotate along the longitudinal axis. This allows the probe on the integrating sphere, which is obstructed by a spectroradiometer or a wall, to be rotated to an easily operable position without moving the entire integrating sphere. Furthermore, a fixing clamp is installed between the rotating frame and the support frame to securely fix the integrating sphere in the appropriate position, preventing displacement during operation and ensuring stability when adjusting or inspecting the probe. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a front view of the present invention;
[0016] Figure 3 This is a bottom view of the present invention;
[0017] Figure 4 for Figure 2 Enlarged view of point A.
[0018] Explanation of the reference numerals: 1. Integrating sphere; 2. Support frame; 3. Rotating frame; 4. Fixing clamp; 11. Fixed hemisphere; 12. Moving hemisphere; 21. Moving track; 22. Moving wheel; 23. Roller; 24. Support ring plate; 25. Side pulley; 31. Rotating ring body; 32. Support foot; 41. Upper clamping plate; 42. Lower clamping plate; 43. Drive screw; 44. Rotating handle; 45. Limiting boss; 46. Limiting plate; 47. Anti-slip plate.
[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0020] 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.
[0021] like Figures 1-4As shown, this embodiment proposes a lamp light radiation safety testing device, including an integrating sphere 1 and a support frame 2. The support frame 2 is located at the bottom of the integrating sphere 1. The integrating sphere 1 includes a fixed hemisphere 11 and a movable hemisphere 12. The support frame 2 is fixedly connected to the fixed hemisphere 11. The support frame 2 is fixedly connected to a movable track 21. The movable hemisphere 12 is provided with movable wheels 22, which move along the movable track 21. A rotating frame 3 is provided at the bottom of the support frame 2. The support frame 2 slides on the rotating frame 3, causing the integrating sphere 1 to rotate along the longitudinal axis. A fixing clamp 4 is provided between the rotating frame 3 and the support frame 2.
[0022] The support frame 2 is fixedly connected to the fixed hemisphere 11 of the integrating sphere 1, providing stable support for the integrating sphere 1. It also serves as a connecting carrier, cooperating with the moving track 21 and the rotating frame 3 to realize the opening, closing, and rotation functions of the integrating sphere 1. The moving wheel 22 slides along the moving track 21, driving the moving hemisphere 12 to move closer to or away from the fixed hemisphere 11, thus controlling the opening and closing of the integrating sphere 1. The cooperation between the track and the pulley makes the movement of the moving hemisphere 12 smoother and less strenuous, avoiding jamming or deviation during manual opening and closing. Simultaneously, the standardized sliding path ensures the sealing of the moving hemisphere 12 after it closes with the fixed hemisphere 11, reducing external light interference and improving the accuracy of the light radiation test. The rotating frame 3 provides a rotational support surface for the support frame 2, allowing the support frame 2 to slide along it and drive the entire integrating sphere 1 to rotate around its longitudinal axis, adjusting the orientation of the integrating sphere 1. The rotating frame 3 provides a rotating support surface for the support frame 2, allowing the support frame 2 to slide along it and rotate the entire integrating sphere 1 around its longitudinal axis. This adjusts the orientation of the integrating sphere 1, solving the problem of inconvenient movement of large equipment, saving manpower and time, and preventing damage to the internal structure of the integrating sphere 1 during movement. The fixing clamp 4 is used to fix the support frame 2 and the rotating frame 3 after the integrating sphere 1 has rotated to the target angle, preventing relative sliding between the two and ensuring that the integrating sphere 1 maintains a stable position during adjustment or testing. This avoids angle deviation due to accidental contact or equipment vibration, ensuring the safety of probe adjustment and inspection operations, as well as the accuracy of test data.
[0023] In this embodiment, the rotating frame 3 includes a rotating ring 31 and several supporting legs 32. The supporting legs 32 are fixedly connected to the bottom of the rotating ring 31, and the rotating ring 31 has a rectangular cross-section. Several rollers 23 are fixedly connected to the bottom of the support frame 2, and the rollers 23 are rotatably connected to the rotating frame 3. A limiting structure is also provided between the rotating frame 3 and the support frame 2 to prevent the rollers 23 from disengaging from the rotating frame 3. The limiting structure includes a supporting ring plate 24, which is fixedly connected to the support frame 2. The supporting ring plate 24 is located inside the rotating ring 31, and several side pulleys 25 are fixedly connected to the outside of the supporting ring plate 24. The side pulleys 25 are rotatably connected to the inside of the rotating ring 31.
[0024] The rotating ring 31 provides a rotational support surface for the rollers 23 at the bottom of the support frame 2, and cooperates with the side pulleys 25 in the limiting structure to restrict the lateral displacement of the support frame 2. Its rectangular cross-section structure enhances its rigidity and ensures stable support for the integrating sphere 1. The rectangular cross-section design of the rotating ring 31 provides a stable rolling surface for the rollers 23. The support feet 32 support the rotating frame 3 and the integrating sphere 1 and support frame 2 above it on the ground, keeping the rotating ring 31 at a certain height from the ground, leaving space for the rotation of the integrating sphere 1. The rollers 23 contact the rotating ring 31 and rotate along it, allowing the support frame 2 to slide relative to the rotating frame 3, thereby driving the integrating sphere 1 to rotate along the longitudinal axis. The support ring plate 24 is fixed to the support frame 2 and located inside the rotating ring 31. The side pulley 25 on its outer side is rotatably connected to the inner side of the rotating ring 31 to prevent the roller 23 from disengaging from the rotating ring 31, limit the lateral displacement of the support frame 2 during rotation, and ensure that the support frame 2 always rotates stably along the rotating ring 31. This avoids the roller 23 from leaving the track due to shaking or improper operation, and improves the safety and reliability of the equipment operation.
[0025] In this embodiment, the fixing clamp 4 includes an upper clamping plate 41, a lower clamping plate 42, and a drive screw 43. The lower clamping plate 42 is fixedly connected to the bottom of the support frame 2. One end of the drive screw 43 is rotatably connected to the lower clamping plate 42. The drive screw 43 is located outside the rotating ring 31. The upper clamping plate 41 abuts against the side of the rotating ring 31 away from the support frame 2. The upper clamping plate 41 is threadedly connected to the drive screw 43. A limiting structure is provided between the upper clamping plate 41 and the lower clamping plate 42 to limit the upper clamping plate 41 and realize the linear movement of the drive screw 43 driving the upper clamping plate 41. An anti-slip plate 47 for increasing the friction between the upper clamping plate 41 and the rotating ring 31 is fixedly connected to the side of the upper clamping plate 41 facing the rotating ring 31. A rotating handle 44 is fixedly connected to the end of the drive screw 43 away from the lower clamping plate 42.
[0026] The lower clamping plate 42 is fixed to the bottom of the support frame 2, serving as the base for the fixed clamp 4. The upper clamping plate 41, in conjunction with the drive screw 43, can approach the rotating ring 31 and abut against the side of the ring away from the support frame 2, clamping the rotating ring 31 together with the lower clamping plate 42, thus achieving relative fixation between the support frame 2 and the rotating frame 3. The clamping action of the upper and lower clamping plates 42 stably locks the rotation angle of the integrating sphere 1, preventing accidental rotation of the integrating sphere 1 during testing or operation, ensuring equipment stability and testing accuracy. Rotating the drive screw 43 causes the upper clamping plate 41 to move linearly (approaching or moving away from the rotating ring 31), achieving clamping or releasing actions. The drive screw 43 utilizes the self-locking and precision of screw drive, making the clamping force of the upper clamping plate 41 controllable and stable, avoiding slippage due to excessive looseness or structural damage due to excessive tightness, ensuring convenient operation and reliable fixation. The movement direction of the upper clamping plate 41 is restricted to ensure that it moves only in a straight line under the drive screw 43 (rather than rotating with the screw), thus ensuring that the upper clamping plate 41 accurately abuts against the rotating ring 31. The anti-slip plate 47 increases the friction between the upper clamping plate 41 and the rotating ring 31, preventing relative slippage and further enhancing the clamping and fixing effect, especially when the integrating sphere 1 bears a large load or is subjected to slight external impact, maintaining a stable locked state. The rotating handle 44 provides a gripping point for the operator, facilitating manual rotation of the drive screw 43.
[0027] In this embodiment, the limiting structure includes a limiting boss 45 and two limiting plates 46. The limiting boss 45 is located at one end of the upper clamping plate 41 away from the outer side of the rotating ring 31. The limiting boss 45 is fixedly connected to the upper clamping plate 41. The two limiting plates 46 are fixedly connected to the lower clamping plate 42. The limiting plates 46 are perpendicular to the side of the lower clamping plate 42 facing the upper clamping plate 41. The limiting boss 45 is located between the two limiting plates 46. The two sides of the limiting boss 45 are slidably connected to the two limiting plates 46 respectively. The driving screw 43 is located between the two limiting plates 46. The upper clamping plate 41 is threadedly connected to the driving screw 43 through the limiting boss 45.
[0028] The limiting boss 45, through its sliding engagement with the limiting plate 46, constrains the movement direction of the upper clamping plate 41, ensuring that the upper clamping plate 41 only moves closer to or further away from the rotating ring 31 along a straight line, preventing the upper clamping plate 41 from shifting due to the rotation of the drive screw 43. Simultaneously, it serves as the connecting carrier between the upper clamping plate 41 and the drive screw 43, ensuring the stability of the threaded transmission and improving the operating accuracy of the fixed fixture 4. The two limiting plates 46 form symmetrical guide channels, within which the limiting boss 45 slides, restricting the lateral displacement of the upper clamping plate 41; simultaneously, it provides protective and support space on both sides for the drive screw 43. Through the cooperation of the limiting plate 46 and the limiting boss 45, the rotational motion of the screw is precisely converted into the linear motion of the upper clamping plate 41, ensuring a stable output of clamping force, solving the problem of upper clamping plate 41 shifting that may occur with a simple threaded connection, and further improving the reliability of the fixed fixture 4.
[0029] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0030] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A light fixture light radiation safety testing device, comprising an integrating sphere (1) and a support frame (2), wherein the support frame (2) is located at the bottom of the integrating sphere (1), the integrating sphere (1) comprises a fixed hemisphere (11) and a movable hemisphere (12), and the support frame (2) is fixedly connected to the fixed hemisphere (11), characterized in that, The support frame (2) is fixedly connected to a moving track (21). The moving hemisphere (12) is provided with a moving wheel (22). The moving wheel (22) moves along the moving track (21). The bottom of the support frame (2) is provided with a rotating frame (3). The support frame (2) slides on the rotating frame (3) and drives the integrating sphere (1) to rotate along the longitudinal axis. A fixing clamp (4) is provided between the rotating frame (3) and the support frame (2).
2. The lamp light radiation safety testing device according to claim 1, characterized in that, The rotating frame (3) includes a rotating ring (31) and several supporting feet (32). The several supporting feet (32) are fixedly connected to the bottom of the rotating ring (31). The rotating ring (31) has a rectangular cross-section.
3. The lamp light radiation safety testing device according to claim 2, characterized in that, The bottom of the support frame (2) is fixedly connected with several rollers (23), the rollers (23) are rotatably connected to the rotating frame (3), and a limiting structure is provided between the rotating frame (3) and the support frame (2) to prevent the rollers (23) from disengaging from the rotating frame (3).
4. The lamp light radiation safety testing device according to claim 3, characterized in that, The limiting structure includes a support ring plate (24), which is fixedly connected to the support frame (2). The support ring plate (24) is located inside the rotating ring body (31). Several side pulleys (25) are fixedly connected to the outside of the support ring plate (24), and the side pulleys (25) are rotatably connected to the inside of the rotating ring body (31).
5. The lamp light radiation safety testing device according to claim 2, characterized in that, The fixing clamp (4) includes an upper clamping plate (41), a lower clamping plate (42), and a drive screw (43). The lower clamping plate (42) is fixedly connected to the bottom of the support frame (2). One end of the drive screw (43) is rotatably connected to the lower clamping plate (42). The drive screw (43) is located outside the rotating ring (31). The upper clamping plate (41) abuts against the side of the rotating ring (31) away from the support frame (2). The upper clamping plate (41) and the drive screw (43) are threaded together. Next, a limiting structure is provided between the upper clamping plate (41) and the lower clamping plate (42) for limiting the upper clamping plate (41) and realizing the linear movement of the driving screw (43) driving the upper clamping plate (41). An anti-slip plate (47) for increasing the friction between the upper clamping plate (41) and the rotating ring (31) is fixedly connected to the side of the upper clamping plate (41) facing the rotating ring (31). A rotating handle (44) is fixedly connected to the end of the driving screw (43) away from the lower clamping plate (42).
6. The lamp light radiation safety testing device according to claim 5, characterized in that, The limiting structure includes a limiting boss (45) and two limiting plates (46). The limiting boss (45) is located at one end of the upper clamping plate (41) away from the outer side of the rotating ring (31). The limiting boss (45) is fixedly connected to the upper clamping plate (41). The two limiting plates (46) are fixedly connected to the lower clamping plate (42). The limiting plates (46) are perpendicular to the lower clamping plate (42) and face the upper clamping plate (41). The limiting boss (45) is located between the two limiting plates (46). The two sides of the limiting boss (45) are slidably connected to the two limiting plates (46) respectively. The driving screw (43) is located between the two limiting plates (46). The upper clamping plate (41) is threadedly connected to the driving screw (43) through the limiting boss (45).