A movable base for a tube signal-to-noise ratio detection device
By designing movable and connecting components with universal wheels and hinge structures, the problem of inconvenient movement and fixation of the image tube signal-to-noise ratio detection equipment was solved, achieving convenient operation and stability, and improving the applicability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANSHU INTELLIGENT TESTING AUTOMATION TECHNOLOGY (SHANGHAI) CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-06-26
AI Technical Summary
The existing mobile base of the image tube signal-to-noise ratio testing equipment is cumbersome to operate, requires multiple people to work together, increases labor costs, and is inconvenient during fixing and moving.
Design a movable base that includes moving components and connecting components. The base enables convenient movement and stable fixation of the equipment through casters and hinge structure. The operation process is simplified by using positioning hooks and springs.
This technology enables convenient movement and stable fixation of the image tube signal-to-noise ratio testing equipment, reduces operational difficulty, and improves the practicality and applicability of the equipment.
Smart Images
Figure CN224414839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of image tube signal-to-noise ratio testing equipment, specifically a movable base for image tube signal-to-noise ratio testing equipment. Background Technology
[0002] Signal-to-noise ratio (SNR) testing of a cathode ray tube (CRT) involves measuring the ratio of signal strength to noise level. CRTs undergo performance testing at the factory; only those meeting standards are released for sale. SNR is a crucial parameter for CRTs, representing the ratio of signal strength to noise level, and SNR testing is a mandatory step in the manufacturing process.
[0003] A search revealed Chinese Patent Publication No. CN4778084U, which discloses a device for detecting the signal-to-noise ratio (SNR) of image tubes. This device utilizes a digital camera, cabinet, monitor, parts tray, light source conversion module, automatic winding device, testing station, and lifting testing platform to inspect incoming image tubes. The light source conversion module, located inside the cabinet, emits a light beam towards the testing station. The beam is directed at the image tube, and the digital camera captures the bright surface formed by the mirror of the image tube after being illuminated by the beam. The monitor then analyzes the image information. Through these steps, the SNR of the image tube is detected. Products that pass inspection are picked up by a robotic arm and placed in the qualified area, while those that fail are placed in the unqualified area. This device optimizes the light source and incorporates an automatic winding device, improving testing accuracy and possessing significant practical value.
[0004] The aforementioned inventions often require manual tightening of bolts, disassembly of fasteners, or the use of additional tools to switch the mobile base of most devices, resulting in cumbersome and time-consuming operations. For example, when switching some devices to the mobile state, operators must bend over to unlock the bottom fasteners one by one and then manually unfold the moving wheels. This process not only requires repeated squatting and standing but also easily leads to parts jamming due to uneven operating force. When switching to the fixed state, the moving wheels must be locked in the reverse operation. The entire process often requires the cooperation of 2-3 people, greatly increasing labor costs. Therefore, there is a need to provide a base that can adjust the movement and fixation of the image tube signal-to-noise ratio testing equipment to improve the applicability of the testing equipment. Utility Model Content
[0005] The purpose of this invention is to provide a movable base for a cathode ray tube signal-to-noise ratio (SNR) testing device, thereby solving the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution:
[0006] This utility model relates to a movable base for a cathode ray tube signal-to-noise ratio detection device, comprising:
[0007] The testing equipment, mounting slots, and base frame are provided. The mounting slots are located on both sides of the testing equipment, and the base frame is fixed to the four corners of the lower surface of the testing equipment.
[0008] The movable component includes a first movable plate and a second movable plate. The first movable plate is rotatably mounted inside one side of the mounting groove, and the second movable plate is rotatably mounted inside the other side of the mounting groove. The lower surface of the second movable plate is level with the lower surface of the first movable plate.
[0009] The connecting assembly includes a fixed shaft, a positioning hook, a rotating hole, and a spring. The fixed shaft is fixed to one side of the outer surface of the second movable plate. The positioning hook rotates through the outer surface of the fixed shaft. The rotating hole is opened at the lower end of the outer surface of the positioning hook and passes through the outer surface of the fixed shaft. The spring is fixed to one side of the upper end of the outer surface of the positioning hook.
[0010] Furthermore, a monitor is fixed to the upper surface of the testing equipment, a lifting testing platform is installed on the front side of the monitor, an automatic winding device is fixed to one side of the monitor, and a sleeve is placed on the front side of the automatic winding device.
[0011] Furthermore, a collar is fixed to one end of the spring, and a fixed post is fixed to one side of the second movable plate, with the collar rotatably sleeved on the outer surface of the fixed post.
[0012] Furthermore, a stop bar is fixed to one side of the outer surface of the second movable plate, and the stop bar contacts the right side wall of the positioning hook.
[0013] Furthermore, a positioning post is fixed to the outer surface of the first movable plate, and the lower end of the positioning hook is engaged with the outer surface of the positioning post.
[0014] Furthermore, the movable component also includes a first hinge and a first omnidirectional wheel. The first hinge is screwed onto the upper surface of the first movable plate, and one side of the first hinge is bolted to the inner wall of the mounting groove. The first omnidirectional wheel is mounted on the lower surface of the first movable plate.
[0015] Furthermore, a second hinge is fixed to one side of the second movable plate, and one side of the second hinge is fixed to the inner wall of the mounting groove. A second universal wheel is fixed to the lower surface of the second movable plate.
[0016] This utility model has the following beneficial effects:
[0017] This invention, through its designed testing equipment, mounting slot, monitor, lifting testing platform, automatic winding device, sleeve, base frame, movable components, and connecting components, allows the operator to move the image tube signal-to-noise ratio testing equipment. When the equipment needs to be moved, the operator can step down on the second movable plate. Guided by the inclined hook at the lower end of the fixed shaft and positioning hook, the positioning hook will engage the positioning column, placing the first and second movable plates horizontally. At this time, the first and second casters are in contact with the ground, facilitating the movement of the testing equipment. Once the testing equipment is moved to the appropriate position, the operator can then move the positioning hook... Figure 2 Pushing to the left causes the upper end of the positioning hook to rotate to the left and the lower end to rotate to the right, moving the positioning pin out of the hook. Under the spring force, once the positioning hook has moved out of the positioning pin, the upper end of the positioning hook returns to a vertical position. At this point, the first and second movable plates, connected by the first and second hinges, tilt upwards at their middle sections, bringing the base frame into contact with the ground and ensuring the stability of the testing equipment. Through the coordination of the first and second casters, the first and second movable plates, the positioning components, the first and second hinges, and the spring, the problem of moving the equipment is solved, and the stability during fixing is ensured. Furthermore, the operation is convenient, significantly improving the practicality and adaptability of the testing equipment. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0021] Figure 3 This is a schematic diagram of the active component structure of this utility model;
[0022] Figure 4 This is an exploded view of the connecting component structure of this utility model.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 111. Mounting slot; 12. Monitor; 13. Lifting test platform; 14. Automatic winding device; 15. Sleeve; 16. Base frame;
[0025] 21. First movable plate; 22. First hinge; 23. First caster wheel; 24. Second movable plate; 25. Second hinge; 26. Second caster wheel;
[0026] 31. Fixed shaft; 32. Positioning hook; 321. Rotating hole; 33. Fixed post; 34. Spring; 35. Collar; 36. Stop bar; 37. Positioning post. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0029] Please see Figure 1-4 As shown, this utility model is a movable base for a cathode ray tube signal-to-noise ratio detection device, comprising:
[0030] Mounting slot 111 and base frame 16. Mounting slot 111 is opened on both sides of the testing equipment. Base frame 16 is fixed to the four corners of the lower surface of the testing equipment. Monitor 12 is fixed on the upper surface of the testing equipment. Lifting testing platform 13 is installed on the front side of monitor 12. Automatic winding device 14 is fixed on one side of monitor 12. Sleeve 15 is placed on the front side of automatic winding device 14.
[0031] The mounting slot 111 serves as a storage space for movable components. When the equipment is not moved, the first movable plate 21 and the second movable plate 24 can be folded and stored in the slot to avoid occupying extra space and keep the equipment's appearance neat. When the equipment does not need to be moved, the base frame 16 directly contacts the ground. Through a large contact area and a stable four-corner layout, the overall stability of the testing equipment is ensured. The monitor 12, the lifting testing platform 13, the automatic winding device 14, and the sleeve 15 are the same model and usage method as the equipment model for image tube signal-to-noise ratio testing in patent number CN4778084U.
[0032] The movable component includes a first movable plate 21 and a second movable plate 24. The first movable plate 21 is rotatably mounted on one side inside the mounting groove 111, and the second movable plate 24 is rotatably mounted on the other side inside the mounting groove 111. The lower surface of the second movable plate 24 is horizontally aligned with the lower surface of the first movable plate 21.
[0033] The first movable plate 21 and the second movable plate 24 are the load-bearing structures of the caster wheel, and the first hinge 22 and the second hinge 25 serve as rotation fulcrums, allowing the first movable plate 21 and the second movable plate 24 to rotate around them.
[0034] The movable assembly also includes a first hinge 22 and a first caster wheel 23. The first hinge 22 is screwed onto the upper surface of the first movable plate 21, and one side of the first hinge 22 is bolted to the inner wall of the mounting groove 111. The first caster wheel 23 is mounted on the lower surface of the first movable plate 21. A second hinge 25 is fixed to one side of the second movable plate 24, and one side of the second hinge 25 is fixed to the inner wall of the mounting groove 111. A second caster wheel 26 is fixed to the lower surface of the second movable plate 24.
[0035] When the first movable plate 21 and the second movable plate 24 are unfolded horizontally, the casters contact the ground, converting the sliding friction between the equipment and the ground into rolling friction, allowing the staff to easily push the testing equipment to move and reducing the difficulty of movement.
[0036] Working principle:
[0037] After the testing equipment is moved to the appropriate position, the staff will then move the positioning hook 32 towards... Figure 2 Pushing to the left, the upper end of the positioning hook 32 rotates to the left and the lower end rotates to the right, causing the positioning pin 37 to move out of the hook of the positioning hook 32. Under the elastic force of the spring 34, after the positioning hook 32 moves out of the positioning pin 37, the upper end of the positioning hook 32 is restored to the vertical state. At this time, the first movable plate 21 and the second movable plate 24 are connected by the first hinge 22 and the second hinge 25, and the middle part of the first movable plate 21 and the second movable plate 24 tilts upward, so that the base frame 16 contacts the ground, ensuring the stability of the testing equipment.
[0038] This step facilitates changes to the status of the testing equipment, improving its applicability.
[0039] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, also includes:
[0040] The connecting assembly includes a fixed shaft 31, a positioning hook 32, a rotating hole 321, and a spring 34. The fixed shaft 31 is fixed to one side of the outer surface of the second movable plate 24. The positioning hook 32 rotates through the outer surface of the fixed shaft 31. The rotating hole 321 is opened at the lower end of the outer surface of the positioning hook 32 and passes through the outer surface of the fixed shaft 31. The spring 34 is fixed to one side of the upper end of the outer surface of the positioning hook 32.
[0041] The fixed shaft 31 serves as the rotation axis of the positioning hook 32, providing a pivot point for the positioning hook 32 to rotate stably around it. The positioning hook 32 is a "locking element" in the unfolded state of the movable plate. Its lower end can lock the positioning post 37, keeping the first movable plate 21 and the second movable plate 24 in a horizontal unfolded state. When unlocking, its lower end disengages from the positioning post 37, allowing the movable plate to fold. The rotating hole 321 is the connection structure between the positioning hook 32 and the fixed shaft 31, ensuring that the positioning hook 32 can rotate flexibly around the fixed shaft 31 to achieve locking and unlocking actions. The spring 34 provides a return force for the positioning hook 32. When the positioning hook 32 unlocks and disengages from the positioning post 37, the spring force of the spring 34 pulls the upper end of the positioning hook 32 back to its original position.
[0042] One end of the spring 34 is fixed with a collar 35, one side of the second movable plate 24 is fixed with a fixing post 33, and the collar 35 is rotatably sleeved on the outer surface of the fixing post 33. One side of the outer surface of the second movable plate 24 is fixed with a stop bar 36, and the stop bar 36 contacts the right side wall of the positioning hook 32. The outer surface of the first movable plate 21 is fixed with a positioning post 37, and the lower end of the positioning hook 32 is stuck on the outer surface of the positioning post 37.
[0043] The collar 35 allows the spring 34 to deform flexibly with the rotation of the positioning hook 32, while ensuring the stable transmission of the spring force of the spring 34. The fixing post 33 serves as the mounting fulcrum of the collar 35, providing a fixed end for the spring 34 and ensuring that the spring 34 can stably exert its elastic force. The stop bar 36 contacts the right side wall of the positioning hook 32 to limit the clockwise rotation range of the positioning hook 32 and ensure the positional accuracy of the positioning hook 32 when locked. The positioning post 37 fixes the relative position of the first movable plate 21 and the second movable plate 24 through mechanical engagement, ensuring that the caster wheel is stably in contact with the ground.
[0044] Working principle:
[0045] When the image tube signal-to-noise ratio testing equipment needs to be moved, the operator can step down on the second movable plate 24. Under the inclined guidance of the lower hook of the fixed shaft 31 and the positioning hook 32, the positioning hook 32 will lock the positioning post 37, making the first movable plate 21 and the second movable plate 24 horizontally positioned. At this time, the first caster 23 and the second caster 26 are in contact with the ground, facilitating the movement of the testing equipment. After the testing equipment is moved to the appropriate position, the operator can then move the positioning hook 32... Figure 2 Pushing to the left, the upper end of the positioning hook 32 rotates to the left and the lower end rotates to the right, causing the positioning pin 37 to move out of the hook of the positioning hook 32. Under the elastic force of the spring 34, after the positioning hook 32 moves out of the positioning pin 37, the upper end of the positioning hook 32 is restored to the vertical state. At this time, the first movable plate 21 and the second movable plate 24 are connected by the first hinge 22 and the second hinge 25, and the middle part of the first movable plate 21 and the second movable plate 24 tilts upward, so that the base frame 16 contacts the ground, ensuring the stability of the testing equipment.
[0046] This step, through the coordination of the first caster wheel 23, the second caster wheel 26, the first movable plate 21, the second movable plate 24, the positioning component, the first hinge 22, the second hinge 25 and the spring 34, not only solves the problem of moving the equipment, but also ensures the stability when fixed. At the same time, it is easy to operate and significantly improves the practicality and adaptability of the testing equipment.
[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A movable base for a cathode ray tube signal-to-noise ratio detection device, characterized in that, include: The mounting slots (111) and the base frame (16) are provided on both sides of the testing equipment, and the base frame (16) is fixed to the four corners of the lower surface of the testing equipment. The movable component includes a first movable plate (21) and a second movable plate (24). The first movable plate (21) is rotatably mounted on one side inside the mounting groove (111), and the second movable plate (24) is rotatably mounted on the other side inside the mounting groove (111). The lower surface of the second movable plate (24) is horizontally aligned with the lower surface of the first movable plate (21). The connecting assembly includes a fixed shaft (31), a positioning hook (32), a rotating hole (321), and a spring (34). The fixed shaft (31) is fixed to one side of the outer surface of the second movable plate (24). The positioning hook (32) rotates through the outer surface of the fixed shaft (31). The rotating hole (321) is opened at the lower end of the outer surface of the positioning hook (32) and passes through the outer surface of the fixed shaft (31). The spring (34) is fixed to one side of the upper end of the outer surface of the positioning hook (32).
2. The movable base of the image tube signal-to-noise ratio detection device according to claim 1, characterized in that: A monitor (12) is fixed on the upper surface of the testing equipment. A lifting testing platform (13) is installed on the front side of the monitor (12). An automatic winding device (14) is fixed on one side of the monitor (12). A sleeve (15) is placed on the front side of the automatic winding device (14).
3. The movable base of the image tube signal-to-noise ratio detection device according to claim 1, characterized in that: One end of the spring (34) is fixed with a collar (35), and one side of the second movable plate (24) is fixed with a fixing post (33), and the collar (35) is rotatably sleeved on the outer surface of the fixing post (33).
4. The movable base of the image tube signal-to-noise ratio detection device according to claim 1, characterized in that: A stop bar (36) is fixed on one side of the outer surface of the second movable plate (24), and the stop bar (36) is in contact with the right side wall of the positioning hook (32).
5. The movable base of the image tube signal-to-noise ratio detection device according to claim 1, characterized in that: The outer surface of the first movable plate (21) is fixed with a positioning post (37), and the lower end of the positioning hook (32) is stuck on the outer surface of the positioning post (37).
6. The movable base of the image tube signal-to-noise ratio detection device according to claim 1, characterized in that: The movable component also includes a first hinge (22) and a first caster wheel (23). The first hinge (22) is screwed onto the upper surface of the first movable plate (21), and one side of the first hinge (22) is bolted to the inner wall of the mounting groove (111). The first caster wheel (23) is mounted on the lower surface of the first movable plate (21).
7. The movable base of the image tube signal-to-noise ratio detection device according to claim 6, characterized in that: A second hinge (25) is fixed on one side of the second movable plate (24), and one side of the second hinge (25) is fixed to the inner wall of the mounting groove (111). A second universal wheel (26) is fixed on the lower surface of the second movable plate (24).