A hanging display screen drop tester

Abstract

This invention discloses a suspended display screen drop tester, comprising a drop platform and a lifting frame for controlling the raising and lowering of the drop platform. The lifting frame is convexly connected to the drop platform. The drop platform includes a housing, lateral support components symmetrically arranged on the housing, and a driven swinging bottom support plate. The lateral support component includes an L-shaped rod on the housing and a positioning bracket that slides with the L-shaped rod. The positioning bracket includes a slider that slides with the L-shaped rod and a support frame that rotates with the slider. A synchronizing rod connects adjacent support frames. The rotation adjustment function of the support frame in the lateral support component, combined with a damping structure, can precisely control the drop angle of the display screen, improving the accuracy of the test angle simulation. Using the support plate and support frame, it can support the quick clamping of display screens of different sizes, avoiding the cumbersome operation of disassembly and reassembly required for each test using traditional equipment.

Description

Technical Field

[0001] This application relates to the field of screen testing, and in particular to a drop tester for a suspended display screen. Background Technology

[0002] In modern industrial workshops, especially in automated or motor data testing facilities, suspended displays are typically positioned high (slightly above the operator's head) to monitor equipment operating status or test data in real time. Operators must look up to read the data; if the display accidentally falls (e.g., due to operator negligence or misjudgment while re-hanging it), it can lead to significant economic losses, production interruptions, or equipment damage. To verify the physical reliability and drop resistance of equipment in real-world environments, suspended displays in such scenarios require drop testing.

[0003] In existing testing equipment, the display screen must be disassembled and re-clamped from the tester chuck after each test, which is cumbersome and time-consuming, resulting in low efficiency due to repeated clamping. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a drop tester for a suspended display screen.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A drop tester for a suspended display screen includes a drop platform and a lifting frame for controlling the raising and lowering of the drop platform. The lifting frame is kinetically connected to the drop platform. The drop platform includes a housing, lateral support components symmetrically arranged on the housing, and a bottom support plate that is driven to swing. The lateral support components include an L-shaped rod on the housing and a positioning bracket that slides with the L-shaped rod. The positioning bracket includes a slider that slides with the L-shaped rod and a support frame that rotates with the slider. A synchronizing rod is connected to adjacent support frames.

[0007] Preferably, the support frame includes a low frame and a high frame, the low frame and the high frame are spaced apart and connected to each other by a connecting rod, the connecting rod is rotatably connected to the slider, and an adjustment component is also provided between the connecting rod and the slider.

[0008] Preferably, the adjustment assembly includes a connector and a damping structure connected to the connecting rod and the slider; the connector has a threaded section and a smooth section, the connecting rod is located on the smooth section, and the slider is located on the threaded section; the damping structure is partially located on the connecting rod and partially located on the connector, forcing the connecting rod and the connector to remain stationary relative to each other.

[0009] Preferably, the damping structure includes a first damping groove formed in the slider, a damping ball slidably disposed in the first damping groove, and a damping elastic element disposed in the damping ball. The connecting rod is provided with a plurality of second damping grooves. The damping elastic element has a tendency to force the damping ball to move towards the direction of the second damping groove. The second damping groove is a ball groove that can accommodate one-third to one-quarter of the damping ball. The side of the connecting rod away from the second damping groove abuts against the nut of the connecting member.

[0010] Preferably, the drop platform is provided with a top pressing component, which includes a support rod fixed to the housing, a horizontal rod connected to the support rod, and a vertical rod connected to the horizontal rod. The end of the vertical rod has a top pressing portion. The support rod and the horizontal rod are slidably engaged through a first adapter, and the horizontal rod and the vertical rod are slidably engaged through a second adapter.

[0011] Preferably, the vertical rod further includes a fixed rod connected to the second adapter, a rotating rod threadedly connected to the fixed rod, and an extension rod threadedly connected to the other end of the rotating rod. One end of the extension rod is fixedly connected to the top pressing part. The threaded sections of the rotating rod connected to the fixed rod and the threaded sections connected to the extension rod have opposite thread directions.

[0012] Preferably, it also includes a support plate located below the slider, the support plate having multiple Hall sensors vertically arranged thereon; the support plate is formed by connecting multiple support blocks vertically, the top of the support block has a connecting groove, the bottom of the support block has a connecting protrusion, and adjacent support blocks are connected to each other through the connecting groove and the connecting protrusion; each support block corresponds to one Hall sensor.

[0013] Preferably, the lifting frame is supported by a support frame, the bottom of the support plate has a sliding rod, and the sliding rod is slidably connected to the support frame; the L-shaped rod is also provided with a sliding groove, and the slider can slide along the length direction of the sliding groove, the sliding direction of the sliding rod is the same as the sliding direction of the slider; the top of the support plate is also provided with a synchronization groove, and part of the slider is located in the synchronization groove; when the sliding rod slides, the side wall of the synchronization groove abuts against the slider and forces the slider to slide.

[0014] Preferably, the bottom of the sliding rod is provided with a self-locking roller, and a foot pedal drive plate is connected between adjacent sliding rods.

[0015] Preferably, the L-shaped rod is also provided with a fixing piece.

[0016] In summary, the present invention has the following beneficial technical effects:

[0017] 1. By using the rotation adjustment function of the support frame in the lateral support component, combined with the damping structure, the drop angle of the display screen can be precisely controlled. This solves the problem that traditional equipment cannot reproduce the specific tilt angle drop when "mistakenly thinking that it is aligned and released". It reduces the impact of human operation proficiency on test results, reliably restores the real fault mode, and improves the accuracy of test angle simulation.

[0018] 2. Adjacent support frames are connected by a synchronous rod to achieve synchronous angle adjustment. The slider and the support plate are matched with the synchronous groove. The slider position can be adjusted synchronously by driving the sliding rod through the foot pedal drive plate, reducing the repetitive positioning time.

[0019] 3. Utilizing trays, high frames, and low frames, it can support quick clamping of displays of different sizes, avoiding the cumbersome disassembly and reassembly required for each test of traditional equipment. This improves clamping and testing efficiency.

[0020] 4. The bottom support plate and the top pressure component work together to achieve various placement postures of the display screen, such as bottom support and corner pressure, to simulate different drop conditions in actual use.

[0021] 5. The support plate can be flexibly adjusted according to the drop height by splicing multiple sets of support blocks, and integrates a Hall sensor to detect the drop trajectory in real time, providing accurate data support for analyzing the drop damage mechanism of the display screen and improving the reliability of test data. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a partial structural schematic diagram of the present invention.

[0024] Figure 3 This is a partial structural diagram of the drop platform in this invention. Figure 1 .

[0025] Figure 4 This is a partial structural diagram of the drop platform in this invention. Figure 2 .

[0026] Figure 5 This is a schematic diagram showing the positional relationship between the support plate and the slider in this invention.

[0027] Figure 6 This is a schematic diagram of the position of the adjustment component in this invention.

[0028] Figure 7 yes Figure 6 Enlarged structural diagram at point A in the middle.

[0029] Figure 8 yes Figure 7 Enlarged structural diagram at point B.

[0030] Figure 9 This is a schematic diagram of the damping structure in this invention.

[0031] Figure 10 This is a partial exploded structural diagram of the top pressure assembly of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Support plate; 12. Support block; 13. Connecting groove; 14. Connecting protrusion; 15. Hall sensor; 16. Sliding rod; 17. Synchronization groove; 18. Self-locking roller; 19. Foot pedal drive plate; 2. Drop platform; 21. Housing; 22. Bottom support plate; 3. Lifting frame; 4. Lateral support assembly; 41. L-shaped rod; 411. Slide groove; 412. Fixing plate; 42. Positioning bracket; 43. Slider; 44. Support frame; 441. Low frame; 442. High frame; 443. Connecting rod; 45. Synchronization rod 5. Adjustment component; 51. Connector; 511. Nut; 512. Threaded section; 513. Smooth section; 52. Damping structure; 521. First damping groove; 522. Damping ball; 523. Damping elastic element; 524. Second damping groove; 6. Top pressing component; 61. Support rod; 62. Horizontal rod; 63. Vertical rod; 631. Fixed rod; 632. Rotating rod; 633. Extension rod; 64. Top pressing part; 65. First adapter; 66. Second adapter; 7. Swing drive component; 71. Cylinder; 72. Transmission rod; 73. Rotating shaft. Detailed Implementation

[0033] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," "third," and similar expressions are used for descriptive and distinguishing purposes only and should not be construed as indicating or implying the relative importance of the corresponding components.

[0034] The following is in conjunction with the appendix Figure 1 -Appendix Figure 10 This application will be described in further detail.

[0035] This application discloses a drop tester for a suspended display screen.

[0036] A drop tester for a suspended display screen includes a support frame 1, a lifting frame 3, and a drop platform 2. The lifting frame 3 is mounted on the support frame 1 and is connected to the drop platform 2 via a transmission mechanism. The lifting frame 3 can drive the drop platform 2 to rise or fall, thereby controlling the drop height. In this application, the transmission method between the lifting frame 3 and the drop platform 2 is a screw drive, which is prior art and will not be described in detail.

[0037] The drop platform 2 includes a housing 21, lateral support components 4 symmetrically arranged on the housing 21, a bottom support plate 22 driven to swing, and a swing drive structure. The swing drive structure is located inside the housing 21 and is connected to the bottom support plate 22 in a transmission manner. When the swing drive structure is working, it can drive the bottom support plate 22 to swing.

[0038] The swing drive component 7 includes a cylinder 71 fixedly mounted on the housing 21, with a transmission rod 72 connected to the output end of the cylinder 71; a rotating shaft 73 is fixedly mounted on the bottom support plate 22, with both ends of the rotating shaft 73 rotatably connected to the housing 21, and the transmission rod 72 is fixedly connected to the rotating shaft 73. The cylinder 71 drives the transmission rod 72, which in turn drives the rotating shaft 73 to rotate, causing the bottom support plate 22 to swing. When the bottom support plate 22 swings, it can move away from the lateral support assembly 4.

[0039] In the initial state, the bottom support plate 22 is located below the lateral support assembly 4 to support the bottom of the object under test.

[0040] Two lateral support components 4 are symmetrically arranged on the housing 21. Each lateral support component 4 includes an L-shaped rod 41 mounted on the housing 21 and a positioning bracket 42 that slides with the L-shaped rod 41. The L-shaped rod 41 has a transverse groove and a vertical groove. The transverse groove is a sliding groove 411. The positioning bracket 42 slides with the sliding groove 411 of the L-shaped rod. When the positioning bracket 42 needs to slide, it can slide along the length of the sliding groove 411. A bolt is also provided at the position of the positioning bracket 42 in the sliding groove 411. Loosening the bolt facilitates the sliding of the positioning bracket 42, and tightening the bolt fixes the positioning bracket 42 to the L-shaped rod 41. The vertical groove allows the L-shaped rod 41 to slide vertically on the housing 21. The height of the L-shaped rod 41 is equivalent to the height of the positioning bracket 42, thereby controlling the distance between the positioning bracket 42 and the support plate. This ensures that the support plate can rest against the bottom of the object being tested while the positioning bracket 42 rests against the side of the object being tested.

[0041] The positioning bracket 42 includes a slider 43 slidably connected to an L-shaped rod 41 and a support frame 44 rotatably engaged with the slider 43. The slider 43 can move on a groove 411, and the support frame 44 supports the object to be tested. The support frame 44 can rotate relative to the slider 43 to adjust its angle, thereby adjusting the placement angle of the object to be tested. This allows for testing of the object's drop at different angles. Since there are two lateral support plates 11, a synchronizing rod 45 connects two adjacent support frames 44, so that when the angle of one object to be tested is adjusted, the other is adjusted synchronously.

[0042] The support frame 44 includes a low frame 441 and a high frame 442, which are spaced apart and connected to each other by a connecting rod 443. The connecting rod 443 is rotatably connected to the slider 43. The connecting rod 443 is used to connect the low frame 441 and the high frame 442. The low frame 441 and the high frame 442 can test objects of different lengths or heights to accommodate different models of test objects.

[0043] An adjustment component 5 is also provided between the connecting rod 443 and the slider 43. The adjustment component 5 can easily adjust the rotation angle of the support frame 44. When it is not rotating, the support frame 44 has a certain degree of stability and will not be pressed down by the weight of the object being tested.

[0044] The adjustment assembly 5 includes a connector 51 connected to the connecting rod 443 and the slider 43, and a damping structure 52. The connector 51 is a bolt with a nut 511 and a screw. The screw has a threaded section 512 and a smooth section 513. The connecting rod 443 is located on the smooth section 513, allowing the connecting rod 443 to rotate relative to the connector 51. The slider 43 is located on the threaded section 512, allowing the connector 51 to connect with the slider 43, enabling the connecting rod 443 to rotate relative to the slider 43 and preventing it from disengaging. The damping structure 52 is partially located on the connecting rod 443 and partially on the connector 51, forcing the connecting rod 443 and the connector 51 to remain stationary relative to each other. This results in the connecting rod 443 requiring a certain amount of resistance when rotating, thereby achieving the effect of keeping the support frame 44 stationary when it provides lateral support to the test object during testing.

[0045] The damping structure 52 includes a first damping groove 521 formed in the slider 43, a damping ball 522 slidably disposed in the first damping groove 521, and a damping elastic element 523 disposed in the damping ball 522. The connecting rod 443 has multiple second damping grooves 524. The damping elastic element 523 has a tendency to force the damping ball 522 to move towards the second damping groove 524. The second damping groove 524 is a groove that can accommodate one-third to one-quarter of the damping ball 522. The damping elastic element 523 is a spring. Under the action of the spring, it can push the side of the connecting rod 443 away from the second damping groove 524 to abut against the nut 511 of the connecting member 51. The contact between the connecting rod 443 and the nut 511 generates friction, thus providing a certain resistance. Since the second damping groove 524 can only accommodate one-third to one-quarter of the position of the damping ball 522... Therefore, when the damping ball 522 enters the second damping groove 524, it can limit the connecting rod 443 and prevent it from rotating. Under a certain external force, the connecting rod 443 can be rotated, and at this time the damping ball 522 will come out of the second damping groove 524.

[0046] Multiple second damping grooves 524 are arranged circumferentially, allowing the support frame 44 to be fixed by the damping ball 522 with only a small rotation angle. Furthermore, the connecting rod 443 has a pointer, and the slider 43 has angle markings, allowing operators to easily see the degree of angle adjustment. This facilitates the rotation of the support frame 44 to a preset angle.

[0047] A top-pressure component 6 is installed on the drop platform 2. The top-pressure component 6 can initially apply top pressure to the object to be tested. There are two ways to place the object to be tested: one is to make the bottom of the object to be tested contact with the tray through a line using the lateral support component 4 and the tray, while the side of the object abuts against the support frame 44. The other way is to place one corner of the object to be tested against the tray, with the opposite corner being abutted and limited by the top-pressure component 6.

[0048] The top pressing assembly 6 includes a support rod 61 fixed to the housing 21, a horizontal rod 62 connected to the support rod 61, and a vertical rod 63 connected to the horizontal rod 62. The end of the vertical rod 63 has a top pressing portion 64. The support rod 61 and the horizontal rod 62 are slidably engaged via a first adapter 65, and the horizontal rod 62 and the vertical rod 63 are slidably engaged via a second adapter 66. The support rod 61 supports the horizontal rod 62 and the vertical rod. The first adapter 65 allows the horizontal rod 62 to slide up and down and back and forth relative to the vertical rod, and after sliding and adjusting its position, it is then tightened and fixed with bolts. The second adapter 66 has the same effect as the first adapter 65, allowing the vertical rod to slide up and down and back and forth relative to the horizontal rod 62, and then be tightened and fixed with bolts.

[0049] The end of the vertical rod 63 is provided with a top pressing part 64, which can be brought close to the top of the object to be measured by the second adapter 66.

[0050] The vertical rod 63 also includes a fixed rod 631 connected to the second adapter 66, a rotating rod 632 threadedly connected to the fixed rod 631, and an extension rod 633 threadedly connected to the other end of the rotating rod 632. One end of the extension rod 633 is fixedly connected to the top pressing part 64. The threaded sections 512 of the rotating rod 632 connected to the fixed rod 631 and the threaded sections 512 connected to the extension rod 633 have opposite thread directions. By rotating the rotating rod 632, the extension rod 633 can be further extended under the action of the threaded connection, thereby allowing the top pressing part 64 to press against one corner of the object to be measured.

[0051] Below the slider 43 is a support plate 11, on which multiple Hall sensors 15 are vertically mounted. The Hall sensors 15 are existing technology and are used to detect the trajectory of the falling object. The support plate 11 is formed by connecting multiple support blocks 12 vertically. Each support block 12 has a connecting groove 13 at its top and a connecting protrusion 14 at its bottom. Adjacent support blocks 12 are connected to each other via the connecting groove 13 and the connecting protrusion 14. Each support block 12 corresponds to one Hall sensor 15. When the drop height needs to be adjusted, the drop platform 2 will rise. The support plate 11 can be lengthened by adding more support blocks 12.

[0052] The support plate 11 has a sliding rod 16 at its bottom, which is slidably connected to the support frame 1. The sliding direction of the sliding rod 16 is the same as that of the slider 43. The support plate 11 also has a synchronization groove 17 at its top, and part of the slider 43 is located in the synchronization groove 17. When the sliding rod 16 slides, the side wall of the synchronization groove 17 abuts against the slider 43 and forces the slider 43 to slide. A self-locking roller 18 is provided at the bottom of the sliding rod 16, and a foot pedal drive plate 19 is connected between adjacent sliding rods 16.

[0053] In this way, the operator can use their foot to drive the foot pedal drive plate 19, causing the sliding rod 16 to move, and the slider 43 moves synchronously. The synchronization groove 17 is slightly larger than the slider 43. After moving the slider 43 to a predetermined position, the position of the support plate 11 is adjusted by a short distance to determine the position of the Hall motion sensor. Then, the slider 43 is fixed to the L-shaped rod 41 with bolts. Next, the self-locking roller 18 self-locks. Finally, synchronous adjustment of the front and rear positions is achieved.

[0054] A fixing plate 412 is also provided on the L-shaped rod 41. The display screen on site will be connected to a switch or button, which can be fixed on the fixing plate 412. The fixing plate 412 can be provided with a slot and locking bolt for fixing the display screen switch or button. After the display screen is installed on the lateral support assembly 4, its matching switch or button can be embedded in the slot and fixed with the locking bolt. Then, the switch or button on the fixing plate 412 is connected to the display screen body through a communication cable. In this way, the connection state of the display screen with the switch and button in actual use is simulated during the drop test, making the test environment closer to the real application scenario and further improving the reliability and accuracy of the test results.

[0055] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, based on the technical solutions of this invention, those skilled in the art can propose various interchangeable structural methods and implementation methods without changing the essential spirit of this invention. Therefore, the above specific embodiments and accompanying drawings are merely illustrative descriptions of the technical solutions of this invention and should not be considered as the entirety of this invention or as a limitation or restriction of the technical solutions of this invention. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drop tester for a suspended display screen, comprising a drop platform (2) and a lifting frame (3) for controlling the raising and lowering of the drop platform (2), wherein the lifting frame (3) is tractively connected to the drop platform (2), characterized in that: The drop platform (2) includes a housing (21), lateral support components (4) symmetrically arranged on the housing (21), and a bottom support plate (22) driven to swing; the lateral support component (4) includes an L-shaped rod (41) arranged on the housing (21), a positioning bracket (42) slidably engaged with the L-shaped rod (41), the positioning bracket (42) includes a slider (43) slidably connected with the L-shaped rod (41), and a support frame (44) rotatably engaged with the slider (43); a synchronizing rod (45) is connected to the adjacent support frame (44).

2. The drop tester for a suspended display screen as described in claim 1, characterized in that: The support frame (44) includes a low frame (441) and a high frame (442). The low frame (441) and the high frame (442) are spaced apart and connected to each other by a connecting rod (443). The connecting rod (443) is rotatably connected to the slider (43). An adjustment component (5) is also provided between the connecting rod (443) and the slider (43).

3. The drop tester for a suspended display screen as described in claim 2, characterized in that: The adjustment assembly (5) includes a connector (51) and a damping structure (52) connected between the connecting rod (443) and the slider (43); the connector (51) has a threaded section (512) and a smooth section (513), the connecting rod (443) is located on the smooth section (513), and the slider (43) is located on the threaded section (512); the damping structure (52) is partially located on the connecting rod (443) and partially located on the connector (51), forcing the connecting rod (443) and the connector (51) to remain stationary relative to each other.

4. The drop tester for a suspended display screen as described in claim 3, characterized in that: The damping structure (52) includes a first damping groove (521) opened in the slider (43), a damping ball (522) slidably disposed in the first damping groove (521), and a damping elastic member (523) disposed in the damping ball (522). The connecting rod (443) is provided with a plurality of second damping grooves (524). The damping elastic member (523) has a tendency to force the damping ball (522) to move toward the second damping groove (524). The second damping groove (524) is a ball groove that can accommodate one-third to one-quarter of the damping ball (522). The side of the connecting rod (443) away from the second damping groove (524) abuts against the nut (511) of the connecting member (51).

5. The drop tester for a suspended display screen as described in claim 1, characterized in that: The drop platform (2) is provided with a top pressing component (6), which includes a support rod (61) fixed to the housing (21), a horizontal rod (62) connected to the support rod (61), and a vertical rod (63) connected to the horizontal rod (62). The end of the vertical rod (63) has a top pressing part (64). The support rod (61) and the horizontal rod (62) are slidably connected through a first adapter (65), and the horizontal rod (62) and the vertical rod (63) are slidably connected through a second adapter (66).

6. The drop tester for a suspended display screen as described in claim 5, characterized in that: The vertical rod (63) also includes a fixed rod (631) connected to the second adapter (66), a rotating rod (632) threadedly connected to the fixed rod (631), and an extension rod (633) threadedly connected to the other end of the rotating rod (632). One end of the extension rod (633) is fixedly connected to the top pressing part (64). The threaded sections (512) of the rotating rod (632) connected to the fixed rod (631) and the threaded sections (512) connected to the extension rod (633) have opposite thread directions.

7. The drop tester for a suspended display screen as described in claim 1, characterized in that: It also includes a support plate (11) located below the slider (43), the support plate (11) having multiple Hall sensors (15) vertically arranged; the support plate (11) is formed by multiple support blocks (12) connected vertically, the top of the support block (12) has a connecting groove (13), the bottom of the support block (12) has a connecting protrusion (14), and adjacent support blocks (12) are connected to each other through the connecting groove (13) and the connecting protrusion (14); each support block (12) corresponds to one Hall sensor (15).

8. The drop tester for a suspended display screen as described in claim 7, characterized in that: The lifting frame (3) is supported by the support frame (1). The bottom of the support plate (11) has a sliding rod (16), which is slidably connected to the support frame (1). The L-shaped rod (41) is also provided with a sliding groove (411). The slider (43) can slide along the length of the sliding groove (411). The sliding direction of the sliding rod (16) is the same as the sliding direction of the slider (43). The top of the support plate (11) also has a synchronization groove (17). Part of the slider (43) is located in the synchronization groove (17). When the sliding rod (16) slides, the side wall of the synchronization groove (17) abuts against the slider (43) and forces the slider (43) to slide.

9. A drop tester for a suspended display screen as described in claim 8, characterized in that: The bottom of the sliding rod (16) is provided with a self-locking roller (18), and a foot pedal drive plate (19) is connected between adjacent sliding rods (16).

10. A drop tester for a suspended display screen as described in any one of claims 1-9, characterized in that: A fixing piece (412) is also provided on the L-shaped rod (41).

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