Display screen surface foreign matter detection device
By introducing a lubrication system into the display screen detection device, the friction problem at the meshing point of the gear and rack was solved, extending the service life of the gear and rack and reducing the hassle of floor cleaning.
Patent Information
- Application Number
- CN202520296873.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-24
AI Technical Summary
In existing display screen testing devices, the rack and pinion lack lubrication during long-term meshing transmission, resulting in an increased coefficient of friction, accelerated wear, and a shortened service life.
A foreign object detection device for a display screen surface was designed, comprising a lubrication tank, a delivery pipe, an oil pump, and a nozzle. The lubricating oil is pumped to the meshing point of the gear and rack to form a lubricating film, reducing friction and extending service life. A collection box is also provided to collect the fallen lubricating oil.
It effectively reduces the friction between gears and racks, extending their service life, while also preventing lubricating oil from contaminating the ground and simplifying cleaning.
Smart Images

Figure CN223742298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display screen testing technology, specifically a foreign object detection device for display screen surface. Background Technology
[0002] Industrial cameras, characterized by high resolution and high precision, are capable of real-time acquisition, processing, and analysis of image information, and are widely used in the field of quality inspection. In the detection of foreign objects on screen surfaces, industrial cameras can utilize image recognition technology to detect defects and foreign objects on the screen surface.
[0003] Chinese utility model patent CN220357371U discloses a precision testing device for an LCD screen, including a base. A support frame is fixedly connected between the upper left and upper right ends of the base. Fixing mechanisms are movably connected to the middle of the left and right walls of the support frame, and the LCD screen is clamped between the two fixing mechanisms. Adjustment mechanisms are fixedly connected to the rear left and rear right ends of the support frame, and reinforcing plates are fixedly connected to the rear ends of the two adjustment mechanisms. A precision detector is fixedly connected to the middle of the upper end of the support frame, and a controller is fixedly connected to the middle of the front end of the base. This precision testing device for an LCD screen, by setting up the fixing and clamping mechanisms, can enhance the fixing effect of the screen and improve its stability. By setting up the adjustment mechanisms, the screen can be flipped and adjusted, which can speed up the testing process.
[0004] In order to adjust the display screen, the above-mentioned detection device is equipped with an adjustment mechanism consisting of gears, racks, and electric push rods. However, the detection device does not have the function of lubricating the racks and gears. If there is no lubrication during the long-term meshing transmission of the racks and gears, the coefficient of friction will increase, which will lead to accelerated wear and shorten the service life of the racks and gears. Utility Model Content
[0005] This invention provides a foreign object detection device for display screen surface to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a foreign object detection device for a display screen surface, comprising a support frame, a detector disposed on the top of the support frame, and a first electric push rod rotatably connected to both sides of the support frame via bearings. A clamping mechanism is fixedly disposed at the telescopic end of the first electric push rod, and a clamping plate is movably disposed on one side of the clamping mechanism. A protective shell is fixedly disposed on both sides of the support frame, and a lubrication box is fixedly disposed on the outer side of the protective shell. A first conveying pipe is fixedly disposed on one side of the lubrication box.
[0007] An oil pump is fixedly installed at one end of the first delivery pipe, and a second delivery pipe is fixedly installed on one side of the oil pump. A nozzle is fixedly installed at one end of the second delivery pipe. Collection boxes are movably installed on both sides of the support frame. An installation block is fixedly installed on one side of the collection box, and one end of the installation block is movably inserted into the installation groove of the support frame.
[0008] Furthermore, a nut seat is fixedly provided on one side of the clamping plate, and a bidirectional lead screw is threadedly connected to the inner wall of the nut seat. An adjustment handle is fixedly provided at one end of the bidirectional lead screw.
[0009] Furthermore, a gear is fixedly provided on the surface of the first electric push rod, a rack is meshed with one side of the gear, and a second electric push rod is fixedly provided at one end of the rack.
[0010] Furthermore, the mounting block has a limiting hole inside, and a bolt is movably installed inside the limiting hole. The bolt is connected to the support frame by a threaded connection. Threaded holes that match the bolt are opened on both sides of the bottom of the inner wall of the support frame.
[0011] Furthermore, the connection between the bolt and the mounting block is a movable plug-in connection.
[0012] Furthermore, the bolt is made of stainless steel.
[0013] Compared with the prior art, the present invention provides a foreign object detection device for a display screen surface, which has the following beneficial effects:
[0014] 1. The foreign object detection device on the display screen consists of a lubrication tank, a first delivery pipe, an oil pump, a second delivery pipe, and a nozzle. The lubrication tank stores lubricating oil. When lubrication of the rack and pinion is required, the oil pump is activated, which delivers the lubricating oil from the lubrication tank to the nozzle. The nozzle then sprays the lubricating oil onto the meshing surfaces of the gear and rack. The lubricating oil forms a lubricating film on the meshing surfaces of the gear and rack. This film reduces direct contact between the two, thereby reducing friction and wear. By reducing friction, the service life of the gear and rack can be extended, thus achieving the function of lubricating the gear and rack.
[0015] 2. The foreign object detection device on the display screen surface has a collection box. If the lubricating oil sprayed on the meshing part of the gear and rack falls down, the collection box will collect it, preventing the lubricating oil from falling directly to the ground and saving the staff the trouble of cleaning the ground afterwards. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a front view of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;
[0019] Figure 4 This is a side view of the lubrication box structure of this utility model.
[0020] In the diagram: 1. Support frame; 101. Detector; 2. First electric push rod; 201. Gear; 202. Rack; 203. Second electric push rod; 3. Clamping mechanism; 301. Clamping plate; 302. Nut seat; 303. Double-acting lead screw; 304. Adjusting handle; 4. Protective shell; 5. Lubrication box; 501. First delivery pipe; 502. Oil pump; 503. Second delivery pipe; 504. Nozzle; 6. Collection box; 601. Mounting block; 602. Bolt. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 This utility model discloses a foreign object detection device for a display screen surface, including a support frame 1. A detector 101 is provided on the top of the support frame 1. A first electric push rod 2 is rotatably connected to both sides of the support frame 1 through bearings. A clamping mechanism 3 is fixedly provided at the telescopic end of the first electric push rod 2. A clamping plate 301 is movably provided on one side of the clamping mechanism 3. A protective shell 4 is fixedly provided on both sides of the support frame 1. A lubrication box 5 is fixedly provided on the outer side of the protective shell 4. A first conveying pipe 501 is fixedly provided on one side of the lubrication box 5.
[0023] An oil pump 502 is fixedly installed at one end of the first delivery pipe 501. A second delivery pipe 503 is fixedly installed on one side of the oil pump 502. A nozzle 504 is fixedly installed at one end of the second delivery pipe 503. Collection boxes 6 are movably installed on both sides of the support frame 1. An installation block 601 is fixedly installed on one side of the collection box 6. One end of the installation block 601 is movably inserted into the installation groove of the support frame 1.
[0024] Specifically, a nut seat 302 is fixedly provided on one side of the clamping plate 301, and a bidirectional lead screw 303 is threadedly connected to the inner wall of the nut seat 302. An adjusting handle 304 is fixedly provided at one end of the bidirectional lead screw 303.
[0025] In this embodiment, by setting an adjustment handle 304, a bidirectional lead screw 303, a nut seat 302, and a clamping plate 301, the bidirectional lead screw 303 is rotated by rotating the adjustment handle 304. Then, the rotating bidirectional lead screw 303 will drive the two clamping plates 301 to move closer or further apart through the nut seat 302. When the two clamping plates 301 are close together, the display screen can be clamped and fixed.
[0026] Specifically, a gear 201 is fixedly provided on the surface of the first electric push rod 2, a rack 202 is meshed with one side of the gear 201, and a second electric push rod 203 is fixedly provided at one end of the rack 202.
[0027] In this embodiment, by setting a first electric push rod 2, the first electric push rod 2 can drive the clamping mechanism 3 to move laterally, and the distance between the two clamping mechanisms 3 can be adjusted according to the length of the display screen. The second electric push rod 203 can drive the rack 202 to move vertically, and the vertically moving rack 202 can drive the gear 201, the first electric push rod 2, and the clamping mechanism 3 to rotate, so as to realize the flip adjustment of the display screen.
[0028] Specifically, the mounting block 601 has a limiting hole inside, and a bolt 602 is movably installed inside the limiting hole. The bolt 602 is connected to the support frame 1 by a threaded connection. Threaded holes that are compatible with the bolt 602 are opened on both sides of the bottom of the inner wall of the support frame 1.
[0029] In this embodiment, by setting bolt 602, one end of bolt 602 is moved out of the limiting hole on the mounting block 601 by loosening bolt 602, thereby releasing the limitation on the collection box 6, and then the collection box 6 can be disassembled for cleaning.
[0030] Specifically, the connection between the bolt 602 and the mounting block 601 is a movable plug-in connection.
[0031] In this embodiment, by setting a bolt 602 and tightening the bolt 602, one end of the bolt 602 is inserted into the limiting hole on the mounting block 601, thereby limiting the collection box 6.
[0032] Specifically, the bolt 602 is made of stainless steel.
[0033] In this implementation scheme, by using stainless steel bolts 602, the bolts 602 are less prone to rusting.
[0034] When in use, the first electric push rod 2 is activated, which can drive the clamping mechanism 3 to move laterally. The distance between the two clamping mechanisms 3 can be adjusted according to the length of the display screen. Then, by rotating the adjusting handle 304, the bidirectional lead screw 303 is rotated. The rotating bidirectional lead screw 303 will drive the two clamping plates 301 to move closer or further apart through the nut seat 302. When the two clamping plates 301 are close together, the display screen can be clamped and fixed.
[0035] The second electric push rod 203 is activated, which can drive the rack 202 to move vertically. The vertically moving rack 202 can drive the gear 201, the first electric push rod 2, and the clamping mechanism 3 to rotate, thereby realizing the flip adjustment of the display screen. The detector 101 can detect foreign objects on the surface of the display screen. The detector 101 can be an industrial camera currently on the market. Industrial cameras are existing technology, such as the ace 2Bas ic industrial camera.
[0036] When lubricating the rack 202 and the gear 201, the oil pump 502 is started. The oil pump 502 will deliver the lubricating oil in the lubrication tank 5 to the nozzle 504. Then the nozzle 504 will spray the lubricating oil onto the meshing surface between the gear 201 and the rack 202. The lubricating oil can form a lubricating film on the meshing surface of the gear 201 and the rack 202.
[0037] In summary, this foreign object detection device for the display screen surface, by setting up a lubrication tank 5, a first delivery pipe 501, an oil pump 502, a second delivery pipe 503, and a nozzle 504, allows the lubrication tank 5 to store lubricating oil. When lubrication of the rack 202 and gear 201 is required, the oil pump 502 is activated, which delivers the lubricating oil from the lubrication tank 5 to the nozzle 504. The nozzle 504 then sprays the lubricating oil onto the meshing point between the gear 201 and the rack 202, allowing the lubricating oil to effectively lubricate the gear 201 and rack 202. A lubricating film is formed on the meshing surfaces of gears 201 and 202. This film reduces direct contact between the two, thereby reducing friction and wear. By reducing friction, the service life of gears 201 and 202 can also be extended, thus achieving the function of lubricating gears 201 and 202. By setting up a collection box 6, if the lubricating oil sprayed at the meshing point of gears 201 and 202 falls down, the collection box 6 will collect it, preventing the lubricating oil from falling directly to the ground, saving the staff the trouble of cleaning the ground afterwards.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A display screen surface foreign object detection apparatus comprising a support frame (1), characterised in that: The top of the support frame (1) is provided with a detector (101), both sides of the support frame (1) are rotatably connected with a first electric push rod (2) through a bearing, the telescopic end of the first electric push rod (2) is fixedly provided with a clamping mechanism (3), one side of the clamping mechanism (3) is movably provided with a clamping plate (301), both sides of the support frame (1) are fixedly provided with a protective shell (4), the outer side of the protective shell (4) is fixedly provided with a lubricating box (5), one side of the lubricating box (5) is fixedly provided with a first conveying pipe (501); One end of the first conveying pipe (501) is fixedly provided with an oil pump (502), one side of the oil pump (502) is fixedly provided with a second conveying pipe (503), one end of the second conveying pipe (503) is fixedly provided with a spray head (504), both sides of the support frame (1) are movably provided with a collecting box (6), one side of the collecting box (6) is fixedly provided with a mounting block (601), one end of the mounting block (601) is movably inserted into the mounting groove of the support frame (1).
2. The display screen surface foreign object detection apparatus according to claim 1, characterized by: One side of the clamping plate (301) is fixedly provided with a nut seat (302), the inner wall of the nut seat (302) is threadedly connected with a bidirectional screw rod (303), one end of the bidirectional screw rod (303) is fixedly provided with an adjusting handle (304).
3. The display screen surface foreign object detection apparatus of claim 1, wherein: The surface of the first electric push rod (2) is fixedly provided with a gear (201), one side of the gear (201) is meshingly connected with a rack (202), one end of the rack (202) is fixedly provided with a second electric push rod (203).
4. The display screen surface foreign object detection apparatus of claim 1, wherein: The inside of the mounting block (601) is provided with a limiting hole, and the inside of the limiting hole is movably provided with a bolt (602), the connecting relationship between the bolt (602) and the support frame (1) is threaded connection, both sides of the bottom of the inner wall of the support frame (1) are provided with threaded holes matched with the bolt (602).
5. A display screen surface foreign object detection apparatus according to claim 4, wherein: The connecting relationship between the bolt (602) and the mounting block (601) is movably inserted.
6. A display screen surface foreign object detection apparatus according to claim 5, wherein: The material of the bolt (602) is stainless steel.
Citation Information
Patent Citations
Precise detection device for LCD (liquid crystal display) screen
CN220357371U