A reliable ICT test fixture
By designing extrusion threaded pillars in the ICT test fixture to prevent the moving block from moving and to suspend the test probe, the problem of the test part being easily damaged by impact is solved, thereby improving the reliability and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIANZHI LIGHTING TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-07
AI Technical Summary
Existing ICT test fixtures are susceptible to damage to the test probes due to external impacts after testing.
A reliable ICT test fixture was designed. By rotating the extrusion threaded column, the extrusion threaded column is made to compress the support rod, preventing the moving block from moving, thereby suspending the test probe and avoiding impact damage.
This effectively prevents the detection probe from being damaged by impact when not in use, thus improving the reliability and lifespan of the equipment.
Smart Images

Figure CN224471801U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of test fixtures, and more particularly to a reliable ICT test fixture. Background Technology
[0002] ICT test fixtures serve as a bridge connecting the circuit board under test (PCB) and the ICT tester. They are a key physical carrier for achieving efficient and accurate online circuit testing. Through a precise bed-of-needles structure and a reliable pressing mechanism, they ensure that test signals are accurately applied to every point on the PCB that needs to be tested, thereby quickly identifying and locating various defects in the manufacturing process and ensuring product quality and production efficiency.
[0003] Existing ICT test fixtures typically place the testing section on top of the support platform after testing. Since the testing section mainly relies on test probes to test the circuit board, the test probes are easily damaged by external impacts when the testing section is placed on the support platform.
[0004] Therefore, those skilled in the art have provided a reliable ICT test fixture to address the problems mentioned in the background section. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a reliable ICT test fixture. Rotating the extrusion threaded column allows it to press against the support rod, preventing the moving block from moving and allowing the test probe to hover in mid-air without being damaged by impact.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a reliable ICT test fixture, comprising a main body, a placement platform bolted to the upper end face of the main body, three placement openings on the upper end face of the placement platform, multiple limiting blocks bolted to the upper end face of the placement platform, through holes at the four corners of the upper end face of the placement platform, support rods fixedly installed on both sides of the upper end face of the main body, a placement box fixedly installed on the upper end face of the two support rods, and a cylinder fixedly installed in the middle of the bottom surface of the placement box;
[0007] A fixing plate is threaded onto the lower end face of the cylinder. A moving block is fixedly mounted on the lower end face of the fixing plate. A sliding frame is fixedly mounted on one side of the moving block. Two extrusion threaded posts are threaded onto one side of the sliding frame. Multiple connecting posts are fixedly mounted on the lower end face of the moving block. A connecting plate is fixedly mounted on the lower end face of the multiple connecting posts. Limiting posts are threaded onto the four corners of the lower end face of the connecting plate. A detection pin is fixedly mounted on the lower end face of the connecting plate.
[0008] Furthermore, a plurality of control buttons are fixedly provided on the front end face of the main body, and a switch is fixedly provided in the middle of the front end face of the main body.
[0009] Furthermore, mounting plates are fixedly installed on both sides of the placement platform, and two fixing bolts are threaded onto the upper surface of the two mounting plates.
[0010] Furthermore, a rotating cover is hinged to the front end face of the placement box.
[0011] Furthermore, telescopic columns are fixedly installed at the four corners of the lower end face of the placement box.
[0012] Furthermore, a damping support arm is bolted to one side of one of the two support rods.
[0013] Furthermore, a display screen is bolted to the front end face of the damping support arm.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model proposes a reliable ICT test fixture, in which a sliding frame is fixed on one side of the moving block, and a support rod is provided inside the sliding frame. When the moving block moves, the sliding frame can slide on the outer surface of the support rod. When the equipment is not in use, the extrusion threaded column can be rotated to extrude the support rod, so that the moving block stops moving. The lower end face of the moving block is connected to a connecting plate through a connecting column. When the moving block moves, the connecting plate can move. Multiple detection pins are fixed on the lower end face of the connecting plate, so that the detection pins can be suspended in mid-air without being damaged by impact. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main axial view of the present invention;
[0017] Figure 2 This is a rear-view axle-side schematic diagram of the present invention;
[0018] Figure 3 This is a top-view axonometric schematic diagram of the present invention;
[0019] Figure 4 This is a side-view axonometric schematic diagram of the present invention.
[0020] Legend:
[0021] 1. Main body; 2. Support rod; 3. Placement platform; 4. Mounting plate; 5. Fixing bolt; 6. Limiting block; 7. Placement opening; 8. Through hole; 9. Control button; 10. Switch; 11. Placement box; 12. Rotating cover; 13. Cylinder; 14. Telescopic column; 15. Fixing plate; 16. Sliding frame; 17. Extrusion threaded column; 18. Damping support arm; 19. Display screen; 20. Moving block; 21. Connecting column; 22. Connecting plate; 23. Limiting column; 24. Detection needle. Detailed Implementation
[0022] 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.
[0023] Reference Figure 1-4 This utility model provides an embodiment of a reliable ICT test fixture, comprising a main body 1, a placement platform 3 bolted to the upper end face of the main body 1, three placement openings 7 on the upper end face of the placement platform 3, multiple limiting blocks 6 bolted to the upper end face of the placement platform 3, through holes 8 at the four corners of the upper end face of the placement platform 3, support rods 2 fixedly installed on both sides of the upper end face of the main body 1, a placement box 11 fixedly installed on the upper end face of the two support rods 2, a cylinder 13 fixedly installed in the middle of the bottom surface of the placement box 11, a fixing plate 15 threadedly fitted on the lower end face of the cylinder 13, a moving block 20 fixedly installed on the lower end face of the fixing plate 15, a sliding frame 16 fixedly installed on one side of the moving block 20, two extrusion threaded posts 17 threadedly fitted on one side of the sliding frame 16, multiple connecting posts 21 fixedly installed on the lower end face of the moving block 20, a connecting plate 22 fixedly installed on the lower end face of the multiple connecting posts 21, limiting posts 23 threadedly fitted at the four corners of the lower end face of the connecting plate 22, and a detection pin 24 fixedly installed on the lower end face of the connecting plate 22.
[0024] Specifically, during use, a placement platform 3 is fixedly installed on the upper surface of the main body 1. Three placement openings 7 are provided on the upper surface of the placement platform 3. Multiple limiting blocks 6 are bolted to the outer surface of the three placement openings 7. Circuit boards can be placed inside the placement openings 7 during use, and the limiting blocks 6 restrict the position of the circuit boards, ensuring their stability on the placement platform 3. Two support rods 2 are fixedly installed on the upper surface of the placement platform 3. A placement box 11 is fixed to the upper surface of the support rods 2. The placement box 11 houses and protects the cylinder 13. The lower surface of the cylinder 13 is connected to a fixed plate 15. The lower end of the fixed plate 15 can be connected to a moving block 20. When the cylinder 13 is activated, the moving block 20 can move. The lower surface of the moving block 20 is connected to a connecting plate 22 via a connecting column 21. When the moving block 20 moves, the connecting plate 22 can also move. The four corners of the lower end face of the connecting plate 22 are fixedly provided with limiting posts 23. When the connecting plate 22 moves downward, the limiting posts 23 can enter the through hole 8 at the upper end of the placement platform 3. After the limiting posts 23 move downward to a certain position, the connecting plate 22 can stop moving downward. Multiple detection pins 24 are fixed on the lower end face of the connecting plate 22, so that the detection pins 24 can contact the circuit board to detect the circuit board. A sliding frame 16 is fixed on one side of the moving block 20. A support rod 2 is provided inside the sliding frame 16. When the moving block 20 moves, the sliding frame 16 can slide on the outer surface of the support rod 2. When the equipment is not in use, the extrusion threaded column 17 can be rotated so that the extrusion threaded column 17 can extrude the support rod 2, so that the moving block 20 stops moving.
[0025] Reference Figure 1-4 Multiple control buttons 9 are fixedly installed on the front face of the main body 1. A switch 10 is fixedly installed in the middle of the front face of the main body 1. Mounting plates 4 are fixedly installed on both sides of the placement platform 3. Two fixing bolts 5 are threaded on the upper end face of the two mounting plates 4. A rotating cover 12 is hinged on the front face of the placement box 11. Telescopic columns 14 are fixedly installed at the four corners of the lower end face of the placement box 11. A damping support arm 18 is bolted to one side of one of the two support rods 2. A display screen 19 is bolted to the front face of the damping support arm 18.
[0026] Specifically, a switch 10 is provided on the front end of the main body 1. Inserting a key into the switch 10 will open the device. Multiple control buttons 9 are provided on the front end of the main body 1, allowing operators to control the entire mechanism. Mounting plates 4 are fixed on both sides of the placement platform 3. When in use, the mounting plates 4 can be fixed to the upper end of the main body 1 by fixing bolts 5. The lower end of the placement box 11 is connected to a fixing plate 15 through an air pump. When the air pump is started, the fixing plate 15 can be moved. A telescopic column 14 is fixed to the lower end of the placement box 11. The lower end of the telescopic column 14 is connected to the fixing plate 15, allowing the fixing plate 15 to move more stably. One of the two support rods 2 is bolted to a damping support arm 18. The front end of the damping support arm 18 is bolted to a display screen 19, allowing the display screen 19 to be adjusted for easy viewing by operators.
[0027] Working principle: The cylinder 13 can be placed and protected inside the placement box 11. The lower end of the cylinder 13 is connected to the fixed plate 15. The lower end of the fixed plate 15 can be connected to the movable block 20. When the cylinder 13 is started, the movable block 20 can be moved. The lower end of the movable block 20 is connected to the connecting plate 22 through the connecting post 21. When the movable block 20 moves, the connecting plate 22 can be moved. The four corners of the lower end of the connecting plate 22 are fixedly provided with limiting posts 23.
[0028] When the connecting plate 22 moves downward, the limiting post 23 can enter the through hole 8 at the upper end of the placement platform 3. After the limiting post 23 moves downward to a certain position, the connecting plate 22 can stop moving downward. Multiple detection pins 24 are fixed on the lower end face of the connecting plate 22, allowing the detection pins 24 to contact the circuit board and perform detection on the circuit board.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A reliable ICT test fixture, comprising a main body (1), characterized in that: The upper end face of the main body (1) is bolted with a placement platform (3), the upper end face of the placement platform (3) is provided with three placement openings (7), the upper end face of the placement platform (3) is bolted with multiple limiting blocks (6), the upper end face of the placement platform (3) is provided with through holes (8) at the four corners, the upper end face of the main body (1) is provided with support rods (2) on both sides, the upper end face of the two support rods (2) is provided with a placement box (11), and the middle of the bottom surface of the placement box (11) is provided with a cylinder (13). The cylinder (13) is threaded with a fixing plate (15) on its lower end face. A moving block (20) is fixedly installed on the lower end face of the fixing plate (15). A sliding frame (16) is fixedly installed on one side of the moving block (20). Two extrusion threaded columns (17) are threadedly installed on one side of the sliding frame (16). Multiple connecting columns (21) are fixedly installed on the lower end face of the moving block (20). A connecting plate (22) is fixedly installed on the lower end face of the multiple connecting columns (21). A limiting column (23) is threadedly installed at each of the four corners of the lower end face of the connecting plate (22). A detection needle (24) is fixedly installed on the lower end face of the connecting plate (22).
2. The reliable ICT test fixture according to claim 1, characterized in that: Multiple control buttons (9) are fixedly provided on the front end face of the main body (1), and a switch (10) is fixedly provided in the middle of the front end face of the main body (1).
3. The reliable ICT test fixture according to claim 1, characterized in that: Mounting plates (4) are fixedly installed on both sides of the placement platform (3), and two fixing bolts (5) are threaded on the upper end face of the two mounting plates (4).
4. A reliable ICT test fixture according to claim 1, characterized in that: The front end face of the placement box (11) is hinged with a rotating cover (12).
5. A reliable ICT test fixture according to claim 1, characterized in that: Telescopic columns (14) are fixedly installed at the four corners of the lower end face of the placement box (11).
6. A reliable ICT test fixture according to claim 1, characterized in that: One of the two support rods (2) is bolted to one side with a damping support arm (18).
7. A reliable ICT test fixture according to claim 6, characterized in that: The display screen (19) is bolted to the front end face of the damping support arm (18).