Blowing device for screen performance detection

Abstract

The utility model relates to the technical field of flexible screen detection equipment, and discloses an air blowing device for screen performance detection, which comprises a bottom plate, an air inlet cavity is arranged in the bottom plate, an air inlet pipe is arranged on one side wall of the bottom plate, the air inlet pipe is communicated with the air inlet cavity, an air outlet is arranged on the top surface of the bottom plate, and the air outlet is communicated with the air inlet cavity. The air outlet and the air inlet cavity are communicated, the air outlet is sleeved with a sealing cavity plate, the top of the sealing cavity plate is higher than the top of the air outlet, a connecting sleeve is arranged on the sealing cavity plate, the connecting sleeve and the sealing cavity plate are communicated, a pressing cover is arranged on the connecting sleeve, and an observation opening is formed in the pressing cover; a to-be-tested screen is pressed between the top surface of the threaded sleeve and the bottom surface of the pressing cover, and the to-be-tested screen covers the inner ring of the connecting sleeve and the observation opening; the device has the advantages of being simple in overall structure, low in manufacturing cost and simple and rapid in testing.

Description

Technical Field

[0001] The utility model relates to an air blowing device for screen performance detection, belonging to the technical field of flexible screen detection equipment. Background Art

[0002] Flexible screen is a new type of screen technology that can make the display screen softer and more flexible than traditional screens. This type of screen usually uses flexible organic light-emitting diode (OLED) technology, making the screen thinner, lighter, and more resistant to pressure. Flexible screens can be used in products such as smartphones, wearable devices, and foldable devices, bringing more innovative possibilities.

[0003] At present, when testing the performance of such screens, such as tension performance testing, limit performance testing, etc., a specific testing mechanism is required. For example, the utility model patent with the Chinese patent authorization announcement number CN216349997U discloses a flexible display screen performance test device, wherein the upper side of the test bench is respectively fixedly connected with two vertically symmetrically arranged fixed plates, and the side walls of the two fixed plates are respectively inserted and fixedly connected with two laterally symmetrically arranged electric telescopic rods, and the two electric telescopic rods are fixedly connected to the machine housing at one end thereof, and a rotating mechanism is provided in the machine housing, and one end of the rotating mechanism extends outward through the machine housing away from the electric telescopic rod and is fixedly connected with a load sensor, and when testing the performance of the flexible screen, after clamping the flexible screen by the clamping plates on both sides, the electric telescopic rod and the rotating mechanism can be used to test the performance of the flexible screen, such as the stretching degree and the curvature. However, such a test device has many components and structures, and there are problems of complex structure and high manufacturing cost. To this end, we propose a blowing device for screen performance testing to replace the traditional test device. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides an air blowing device for detecting screen performance.

[0005] The technical solution of the utility model is as follows:

[0006] A blowing device for screen performance detection comprises a base plate, an air inlet cavity is provided inside the base plate, an air inlet pipe is arranged on one side wall of the base plate, the air inlet pipe is connected with the air inlet cavity, an air outlet is arranged on the top surface of the base plate, the air outlet is connected with the air inlet cavity, a sealing chamber plate is sleeved on the air outlet, the top of the sealing chamber plate is arranged higher than the top of the air outlet, a connecting sleeve is arranged on the sealing chamber plate, the connecting sleeve is connected with the sealing chamber plate, a clamping cover is arranged on the connecting sleeve, an observation port is arranged on the clamping cover, a screen to be tested is clamped between the top surface of the threaded sleeve and the bottom surface of the clamping cover, and the screen to be tested is arranged to cover the inner circle of the connecting sleeve and the observation port.

[0007] Wherein, an external thread is provided on the outer wall of the connecting sleeve, an internal thread is provided on the inner wall of the pressing cover, and the pressing cover is connected to the connecting sleeve by connecting the internal thread and the external thread.

[0008] Among them, a sealing pressing groove is also provided on the bottom wall of the pressing cover, which is arranged in an annular shape on the bottom wall of the pressing cover, and the sealing pressing groove and the pressing cover are concentrically arranged. An elastic sealing ring is arranged in the sealing pressing groove. When the screen to be tested is pressed between the top surface of the threaded sleeve and the bottom surface of the pressing cover, the elastic sealing ring and the screen to be tested are pressed.

[0009] Wherein, a barometer is also arranged on the top surface of the bottom plate, and the detection end of the barometer is arranged to penetrate into the air inlet cavity.

[0010] Wherein, the area of ​​the air inlet cavity communicating with the air outlet is not less than half of the bottom area of ​​the through-portion of the air outlet.

[0011] The utility model has the following beneficial effects:

[0012] The utility model arranges a bottom plate, and arranges an air inlet cavity, an air inlet pipe, an air outlet, a sealing chamber plate, a connecting sleeve, a clamping cover, an observation port and other structures on the bottom plate. When conducting a detection test, the screen to be tested is clamped onto the connecting sleeve by using the clamping cover, and then gas is introduced into the air inlet pipe by using an external air outlet device. The introduced gas passes through the air inlet pipe, the air inlet cavity, the air outlet and the sealing chamber plate in sequence, and then enters the connecting sleeve, and continues to move upward to squeeze the screen to be tested. The screen to be tested will be deformed after being subjected to force, and the deformed part of the screen to be tested will extend outward from the observation port. At this time, the staff can test the tension performance, limit performance, etc. of the screen by converting the air outlet pressure of the air outlet device. Compared with the prior art, the utility model has the advantages of simple overall structure, low manufacturing cost, and simple and fast testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 This is an enlarged view of point A.

[0016] The reference numerals in the figure are as follows:

[0017] 1. Bottom plate; 2. Air inlet cavity; 3. Air inlet pipe; 4. Air outlet; 5. Sealing chamber plate; 6. Connecting sleeve; 7. Compression cover; 8. Observation port; 9. Screen to be tested; 10. External thread; 11. Internal thread; 12. Sealing compression groove; 13. Elastic sealing ring; 14. Pressure gauge. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example: Please refer to Figures 1 to 3 The present embodiment provides an air blowing device for detecting screen performance, including a bottom plate 1, an air inlet cavity 2 is provided inside the bottom plate 1, an air inlet pipe 3 is provided on the left side wall of the bottom plate 1, the air inlet pipe 3 is connected to the air inlet cavity 2, and the air inlet pipe 3 is used to connect to an external air outlet device, so that the external air outlet device can ventilate into the air inlet cavity 2 through the air inlet pipe 3 so that subsequent detection tests can be carried out smoothly.

[0020] An air outlet 4 is provided on the top surface of the bottom plate 1, and the air outlet 4 is connected to the air inlet chamber 2. The area of ​​the air inlet chamber 2 connected to the air outlet 4 is not less than half of the bottom area of ​​the through-portion of the air outlet 4, so as to ensure the flow area of ​​the airflow entering the air outlet 4 from the air inlet chamber 2, and avoid the situation that the subsequent pressure applied to the screen 9 to be tested is not uniform due to the small flow area, resulting in deviation in the test result. A sealing chamber plate 5 is sleeved on the air outlet 4, and the top of the sealing chamber plate 5 is higher than the top of the air outlet 4. A connecting sleeve 6 is provided on the sealing chamber plate 5, and the connecting sleeve 6 is connected to the sealing chamber plate 5. A clamping cover 7 is provided on the connecting sleeve 6, and an observation port 8 is opened on the clamping cover 7. The screen 9 to be tested is clamped between the top surface of the threaded sleeve and the bottom surface of the clamping cover 7, and the screen 9 to be tested is arranged to cover the inner circle of the connecting sleeve 6 and the observation port 8.

[0021] Through the above-mentioned settings, when it is necessary to conduct a screen performance test, the screen 9 to be tested is placed on the top surface of the connecting sleeve 6, so that the screen 9 to be tested covers the inner circle of the connecting sleeve 6, and then the screen 9 to be tested is pressed against the connecting sleeve 6 by using the clamping cover 7, and then the gas is introduced into the air inlet pipe 3 by using the external air outlet device. The introduced gas can pass through the air inlet pipe 3, the air inlet cavity 2, the air outlet 4 and the sealing chamber plate 5 in sequence, and finally enter the connecting sleeve 6, and will continue to move upward to squeeze the screen 9 to be tested. The screen 9 to be tested will be deformed after being subjected to force, and the deformed part of the screen 9 to be tested will extend outward from the observation port 8. At this time, the staff can obtain the relationship between the deformation degree of the screen 9 to be tested and the air pressure by converting the air outlet pressure of the air outlet device in a conventional manner, and can quickly test the tension performance, limit performance, etc. of the screen.

[0022] In order to ensure that the screen 9 to be tested can be pressed onto the connecting sleeve 6 by the pressing cover 7, in this embodiment, an external thread 10 is provided on the outer wall of the connecting sleeve 6, and an internal thread 11 is provided on the inner wall of the pressing cover 7. The pressing cover 7 is connected to the connecting sleeve 6 by connecting the internal thread 11 with the external thread 10. The pressing cover 7 and the connecting sleeve 6 are connected in the form of threaded connection, so that the pressing cover 7 can move downward step by step on the connecting sleeve 6, which is not only applicable to the detection test of the screen 9 to be tested with different thicknesses, but also can ensure the pressing effect of the pressing cover 7 on the screen 9 to be tested. The screen 9 to be tested is specifically installed between the pressing cover 7 and the connecting sleeve 6 in the following manner: first, the screen 9 to be tested is placed on the top surface of the connecting sleeve 6, so that the screen 9 to be tested covers the inner circle of the connecting sleeve 6, and then, the pressing cover 7 is screwed onto the connecting sleeve 6, and is screwed in step by step until it cannot be screwed in. At this time, the pressing cover 7 is about to press the screen 9 to be tested onto the connecting sleeve 6.

[0023] To ensure the sealing performance, a sealing pressing groove 12 is further provided on the bottom wall of the pressing cover 7. The sealing pressing groove 12 is arranged in an annular shape on the bottom wall of the pressing cover 7, and the sealing pressing groove 12 is arranged concentrically with the pressing cover 7. An elastic sealing ring 13 is arranged in the sealing pressing groove 12. When the screen 9 to be tested is pressed between the top surface of the threaded sleeve and the bottom surface of the pressing cover 7, the elastic sealing ring 13 can be pressed against the screen 9 to be tested, so as to prevent the gas blown toward the screen 9 to be tested from overflowing from the gap that may exist between the screen 9 to be tested and the top surface of the connecting sleeve 6, thereby affecting the accuracy of subsequent detection results.

[0024] For the convenience of the user, a barometer 14 is also provided on the top surface of the bottom plate 1, and the detection end of the barometer 14 is inserted into the air inlet cavity 2. The barometer 14 can detect the gas pressure in the air inlet cavity 2. When the user performs a screen performance test, the user can obtain the relationship between the deformation degree of the screen 9 to be tested and the air pressure by reading the value detected by the barometer 14, so that the user does not need to deliberately select an air outlet device that can display its own air outlet pressure.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A blowing device for screen performance detection, characterized in that: The invention comprises a bottom plate (1), an air inlet cavity (2) is provided inside the bottom plate (1), an air inlet pipe (3) is provided on one side wall of the bottom plate (1), the air inlet pipe (3) is connected to the air inlet cavity (2), an air outlet (4) is provided on the top surface of the bottom plate (1), the air outlet (4) is connected to the air inlet cavity (2), a sealing chamber plate (5) is sleeved on the air outlet (4), and the top of the sealing chamber plate (5) is higher than the air outlet (4). ), a connecting sleeve (6) is arranged on the sealing chamber plate (5), the connecting sleeve (6) and the sealing chamber plate (5) are connected, a pressing cover (7) is arranged on the connecting sleeve (6), an observation port (8) is opened on the pressing cover (7), a screen to be tested (9) is pressed between the top surface of the threaded sleeve and the bottom surface of the pressing cover (7), and the screen to be tested (9) is arranged to cover the inner circle of the connecting sleeve (6) and the observation port (8).

2. The air blowing device for screen performance detection according to claim 1, characterized in that: An external thread (10) is provided on the outer wall of the connecting sleeve (6), and an internal thread (11) is provided on the inner wall of the pressing cover (7). The pressing cover (7) is connected to the connecting sleeve (6) by connecting the internal thread (11) with the external thread (10).

3. The air blowing device for screen performance detection according to claim 1, characterized in that: The bottom wall of the pressing cover (7) is also provided with a sealing pressing groove (12), which is arranged in an annular shape on the bottom wall of the pressing cover (7), and is concentrically arranged with the pressing cover (7). An elastic sealing ring (13) is arranged in the sealing pressing groove (12), and when the screen to be measured (9) is pressed between the top surface of the threaded sleeve and the bottom surface of the pressing cover (7), the elastic sealing ring (13) and the screen to be measured (9) are pressed together.

4. The air blowing device for screen performance detection according to claim 1, characterized in that: A barometer (14) is also provided on the top surface of the bottom plate (1), and a detection end of the barometer (14) is provided so as to penetrate into the air inlet cavity (2).

5. The air blowing device for screen performance detection according to claim 1, characterized in that: The area of ​​the air inlet cavity (2) communicating with the air outlet (4) is not less than half the bottom area of ​​the through portion of the air outlet (4).

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