A screen ruling detection device
The quick-release component design solves the problem of cumbersome disassembly of the positioning block in the screen scratch detection device, enabling quick locking and unlocking of the positioning block, thus improving detection efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI RUIER ELECTRONICS CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-05
AI Technical Summary
The existing screen scribing detection device has a cumbersome and time-consuming disassembly process for the positioning block, which affects the detection efficiency.
It adopts quick-release components, including a fixing sleeve, a positioning sleeve and a locking rod, and the positioning block can be quickly locked and unlocked by turning the knob, simplifying the disassembly and assembly process.
It improves detection efficiency, simplifies the disassembly and assembly process of positioning blocks, reduces operational difficulty, and shortens maintenance time.
Smart Images

Figure CN224327884U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screen detection technology, specifically to a screen line detection device. Background Technology
[0002] As a core component of electronic devices, the screen plays a crucial role in converting electrical signals into images that people can directly observe. It is widely used in numerous fields, including various consumer electronics, industrial equipment, and medical instruments. To ensure the display quality of the screen, before it leaves the factory, it undergoes tests such as scribing and touch testing using quality inspection equipment to verify its response speed, accuracy, and sensitivity, thereby conducting performance evaluations to ensure the screen's stability and reliability in various usage environments.
[0003] Existing screen scratch detection devices fix the screen with positioning blocks and use a moving module and lifting assembly to allow a stylus to touch or draw lines on the screen, thereby detecting the screen's responsiveness. However, because the positioning blocks are fixed with bolts, adjustments or replacements require tools for disassembly and adjustment, which is cumbersome and time-consuming. Therefore, this invention proposes a screen scratch detection device with quickly detachable positioning blocks. Summary of the Invention
[0004] This invention provides a screen scratch detection device that solves the problem of cumbersome disassembly of the positioning block in existing screen scratch detection devices by using a quick-release component.
[0005] The objective of this utility model is achieved through the following means:
[0006] A screen line detection device includes a base and a stylus. The base is provided with a moving module, and the output end of the moving module is provided with a lifting component that cooperates with the stylus. The stylus is detachably mounted on the lifting component. The base is provided with a plurality of positioning blocks, and each of the plurality of positioning blocks is provided with a quick-release component that cooperates with the base.
[0007] The quick-release assembly includes a fixing sleeve and a positioning sleeve. The fixing sleeve is fixedly installed on the base. The positioning sleeve has a slidable locking rod inside. One end of the positioning sleeve is surrounded by a plurality of balls that cooperate with the locking rod. The fixing sleeve has a fixing groove that cooperates with the balls.
[0008] Furthermore, a knob is provided at one end of the locking rod, and the knob protrudes from one end of the positioning sleeve.
[0009] Furthermore, the positioning sleeve includes a body and locking sleeves and pressure plates disposed at both ends of the body. The locking sleeve is provided with a plurality of sliding grooves that cooperate with the ball. The body is provided with a threaded groove that cooperates with the locking rod. An elastic limiting sleeve that cooperates with the ball is provided between the locking sleeve and the body.
[0010] Furthermore, the lifting assembly includes a fixed plate, a sliding plate, and a clamping block for cooperating with the stylus. The fixed plate is located at the output end of the moving module, the sliding plate is slidably mounted on one side of the fixed plate via a driving component, and the clamping block is fixedly mounted on one end of the sliding plate.
[0011] Furthermore, one end of the clamping block is provided with an opening groove that mates with the stylus, and one end of the opening groove is provided with a bolt rod for fixing.
[0012] Furthermore, a linear guide is provided on one side of the fixed plate, and a slider that cooperates with the linear guide is provided on the sliding plate.
[0013] Furthermore, the positioning block is provided with a through groove or through hole that mates with the quick-release assembly.
[0014] The beneficial effects of this invention are as follows: Through the synergistic effect of the moving module and the lifting component, the stylus can flexibly perform multi-position, complex path tapping and drawing operations, thereby significantly improving detection efficiency. Furthermore, the locking rod within the positioning sleeve allows the ball bearing to engage with the fixing groove, enabling rapid locking and unlocking of the positioning block, simplifying the disassembly and assembly process, reducing operational difficulty, shortening maintenance time, and improving work efficiency. Attached Figure Description
[0015] Figure 1 This is a first structural schematic diagram of a screen line detection device according to the present invention;
[0016] Figure 2 This is a schematic diagram of the second structure of a screen line detection device according to the present invention;
[0017] Figure 3 for Figure 2 Enlarged diagram of A in the middle;
[0018] Figure 4 for Figure 2 Enlarged diagram of B in the middle;
[0019] Figure 5 This is a first partial cross-sectional view of a screen scribing detection device according to the present invention;
[0020] Figure 6 This is a second partial cross-sectional view of a screen scribing detection device according to the present invention;
[0021] Figure 7 This is a schematic diagram of the quick-release component in this utility model;
[0022] The reference numerals in the diagram are as follows: 1-base, 2-stylus, 3-moving module, 4-lifting assembly, 41-fixed plate, 411-linear rail, 42-sliding plate, 421-slider, 43-clamping block, 431-opening slot, 432-bolt rod, 44-driving component, 5-positioning block, 51-through slot, 6-quick release assembly, 61-fixed sleeve, 611-fixed groove, 62-positioning sleeve, 621-body, 6211-threaded groove, 622-locking sleeve, 6221-sliding groove, 623-pressure plate, 624-elastic limit sleeve, 63-locking rod, 631-knob, 64-ball bearing. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0024] In this embodiment, refer to Figure 1 - Figure 7 The screen line detection device specifically implemented therein includes a base 1 and a stylus 2. The base 1 is provided with a moving module 3. The output end of the moving module 3 is provided with a lifting component 4 that cooperates with the stylus 2. The stylus 2 is detachably installed on the lifting component 4. The base 1 is provided with a number of positioning blocks 5. Each of the positioning blocks 5 is provided with a quick-release component 6 that cooperates with the base 1.
[0025] The mobile module 3 includes a bracket, a guide rail, a sliding block, a first linear motor, and a second linear motor. The first linear motor and the guide rail are respectively installed on both sides of the base 1. The sliding block is slidably installed on the guide rail. The two ends of the bracket are respectively connected to the sliding block and the output end of the first linear motor. The second linear motor is fixedly installed on the bracket. The lifting component 4 is installed on the output end of the second linear motor.
[0026] Through the cooperation of the first linear motor, guide rail, slider, and second linear motor, the lifting assembly 4 and stylus 2 move precisely in the horizontal direction, thereby achieving high-precision positioning for screen line detection. The lifting assembly 4 also allows the stylus 2 to slide up and down, thus enabling touch functionality while adapting to screens of varying thicknesses, ensuring comprehensive and accurate detection.
[0027] The quick-release assembly 6 includes a fixing sleeve 61 and a positioning sleeve 62. The fixing sleeve 61 is fixedly installed on the base 1. The positioning sleeve 62 has a slidable locking rod 63 inside. One end of the positioning sleeve 62 is surrounded by several ball bearings 64 that cooperate with the locking rod 63. The fixing sleeve 61 has a fixing groove 611 that cooperates with the ball bearings 64. In use, by sliding the locking rod 63, the ball bearings 64 are squeezed and slid outward to cooperate with the fixing groove 611, thereby firmly locking the positioning sleeve 62 onto the fixing sleeve 61, realizing the quick installation and removal of the positioning block 5. When it is necessary to adjust the position of the positioning block 5, simply reverse the operation of the locking rod 63 to release the ball bearings 64, and the positioning sleeve 62 can be easily moved out of the fixing sleeve 61. After the positioning block 5 is adjusted to the appropriate position, slide the locking rod 63 again to lock the ball bearings 64 back in place, realizing the quick fixation of the positioning block 5.
[0028] A knob 631 is provided at one end of the locking rod 63, protruding from one end of the positioning sleeve 62. The positioning sleeve 62 includes a body 621 and locking sleeves 622 and pressure plates 623 located at both ends of the body 621. The locking sleeves 622 have several sliding grooves 6221 that mate with the balls 64. The body 621 has threaded grooves 6211 that mate with the locking rod 63. An elastic limiting sleeve 624 that mates with the balls 64 is provided between the locking sleeves 622 and the body 621. The locking sleeves 622 and the body 621 are connected by threads. The elastic limiting sleeve 624 is used to prevent the balls 64 from disengaging from the locking sleeves 622, ensuring that the balls 64 run stably within the sliding grooves 6221. The locking rod has a threaded section that mates with the threaded grooves 6211.
[0029] Rotating knob 631 causes the threaded section to engage with the threaded groove 6211, allowing the locking rod 63 to slide within the positioning sleeve 62. This squeezes the ball 64, causing it to move outward along the sliding groove 6221 and tightly fit into the fixing groove 611. The pressure plate 623 then firmly presses the positioning block 5 onto the base 1, achieving a fixing effect. When adjustment or removal of the positioning block 5 is required, rotating knob 631 in the opposite direction retracts the locking rod 63. The ball 64 moves inward under the action of the elastic limiting sleeve 624, thus disengaging from the fixing groove 611. This allows the positioning sleeve 62 to be easily removed, enabling adjustment or removal of the positioning block 5.
[0030] The lifting assembly 4 includes a fixed plate 41, a sliding plate 42, and a clamping block 43 for cooperating with the stylus 2. The fixed plate 41 is located at the output end of the moving module 3. The sliding plate 42 is slidably mounted on one side of the fixed plate 41 via a driving component 44. The clamping block 43 is fixedly mounted on one end of the sliding plate 42. The fixed plate 41 is connected to the moving module 3 by bolts. The sliding plate 42 is driven by the driving component 44 to reciprocate on the fixed plate 41, and drives the clamping block 43 to move synchronously. The stylus 2 moves up and down with the sliding plate 42 via the clamping block 43, thereby contacting the screen surface to achieve the functions of tapping or drawing lines.
[0031] In this embodiment, the driving component 44 uses a cylinder to realize the reciprocating motion of the sliding plate 42. The piston rod of the cylinder is connected to the sliding plate 42 through a connecting member. By controlling the air intake and exhaust of the cylinder, the sliding plate 42 is made to reciprocate, so that the stylus 2 can accurately perform touch or line drawing operations on the screen.
[0032] One end of the clamping block 43 has an opening slot 431 that mates with the stylus 2. One end of the opening slot 431 has a bolt 432 for fixing. By tightening the bolt 432, the stylus 2 can be firmly fixed in the opening slot 431, ensuring it will not loosen or fall off during use. When the height of the stylus 2 needs to be adjusted, simply loosen the bolt 432 in the opposite direction to loosen the opening slot 431, allowing easy adjustment of the stylus 2's position to suit different operational needs. After the stylus 2 is adjusted to its correct position, tighten the bolt 432 again to securely lock it in place, ensuring the stylus 2 is stably fixed and meets the requirements for precise operation.
[0033] A linear guide 411 is provided on one side of the fixed plate 41, and a slider 421 that cooperates with the linear guide 411 is provided on the sliding plate 42. The linear guide 411 is fixedly installed on the fixed plate 41 by bolts, and through cooperation with the slider 421, the sliding plate 42 slides smoothly on the linear guide 411, thereby realizing the precise positioning and stable operation of the stylus 2.
[0034] The positioning block 5 is provided with a through slot 51 or through hole that mates with the quick-release component 6. The radius of the through slot 51 or through hole matches the mating radius of the quick-release component 6, ensuring that the quick-release component 6 can be quickly inserted and locked, achieving rapid installation and removal. The through hole is suitable for applications where frequent adjustments are not required, providing a more stable fixation effect; the through slot 51 is suitable for applications where the position of the positioning block 5 needs to be adjusted. Through the sliding engagement of the through slot 51 with the quick-release component 6, the position of the positioning block 5 can be flexibly adjusted, achieving precise adjustment of parameters such as angles. This meets different usage needs and ensures the stability and efficiency of the device in different usage scenarios.
[0035] The beneficial effects of this utility model are as follows: Through the synergistic action of the moving module 3 and the lifting component 4, the stylus 2 can flexibly perform multi-position, complex path tapping and drawing operations, thereby significantly improving detection efficiency. Furthermore, through the locking rod 63 within the positioning sleeve 62, the ball bearing 64 engages with the fixing groove 611, enabling rapid locking and unlocking of the positioning block 5, simplifying the disassembly and assembly process, reducing operational difficulty, thereby shortening maintenance time and improving work efficiency.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. A screen line detection device, comprising a base (1) and a stylus (2), wherein a moving module (3) is provided on the base (1), and the output end of the moving module (3) is provided with a lifting assembly (4) that cooperates with the stylus (2), and the stylus (2) is detachably mounted on the lifting assembly (4), characterized in that: The base (1) is provided with a plurality of positioning blocks (5), and each of the positioning blocks (5) is provided with a quick-release assembly (6) that cooperates with the base (1); The quick-release assembly (6) includes a fixed sleeve (61) and a positioning sleeve (62). The fixed sleeve (61) is fixedly installed on the base (1). The positioning sleeve (62) is provided with a slidable locking rod (63). One end of the positioning sleeve (62) is surrounded by a plurality of balls (64) that cooperate with the locking rod (63). The fixed sleeve (61) is provided with a fixing groove (611) that cooperates with the balls (64).
2. The screen scribing detection device according to claim 1, characterized in that: One end of the locking rod (63) is provided with a knob (631), which protrudes from one end of the positioning sleeve (62).
3. The screen scribing detection device according to claim 1 or 2, characterized in that: The positioning sleeve (62) includes a body (621) and locking sleeves (622) and pressure plates (623) located at both ends of the body (621). The locking sleeve (622) has a plurality of sliding grooves (6221) that cooperate with the ball (64). The body (621) has a threaded groove (6211) that cooperates with the locking rod (63). An elastic limiting sleeve (624) that cooperates with the ball (64) is provided between the locking sleeve (622) and the body (621).
4. The screen scribing detection device according to claim 1, characterized in that: The lifting assembly (4) includes a fixed plate (41), a sliding plate (42), and a clamp (43) for cooperating with the stylus (2). The fixed plate (41) is located at the output end of the moving module (3). The sliding plate (42) is slidably mounted on one side of the fixed plate (41) by a drive member (44). The clamp (43) is fixedly mounted on one end of the sliding plate (42).
5. The screen scribing detection device according to claim 4, characterized in that: One end of the clamping block (43) is provided with an opening groove (431) that cooperates with the stylus (2), and one end of the opening groove (431) is provided with a bolt rod (432) for fixing.
6. The screen scribing detection device according to claim 4, characterized in that: The fixed plate (41) has a linear guide (411) on one side, and the sliding plate (42) has a slider (421) that cooperates with the linear guide (411).
7. The screen scribing detection device according to claim 1, characterized in that: The positioning block (5) is provided with a through groove (51) or through hole that cooperates with the quick-release assembly (6).