A multi-directional vibration detection structure for automotive display instruments

Abstract

This invention discloses a multi-directional vibration detection structure for automotive display instruments, belonging to the field of instrument vibration detection technology. It includes a testing platform, a portable clamping mechanism, and a vibration mechanism. A support frame is mounted on the upper surface of the testing platform, and the portable clamping mechanism is mounted on the support frame. A damping bearing connects to a ring plate on the upper surface of the testing platform, and the upper surface of the ring plate is densely covered with hemispheres. A servo motor is also mounted on the upper surface of the testing platform, and the servo motor is connected to the vibration mechanism via a belt drive assembly. A partial bearing of the vibration mechanism is connected to the portable clamping mechanism. This invention can quickly clamp and fix instruments of different shapes, and during testing, it can detect vibrations from multiple directions, thereby improving the comprehensiveness of the test results.

Description

Technical Field

[0001] This invention relates to the field of instrument vibration detection technology, specifically a multi-directional vibration detection structure for automotive display instruments. Background Technology

[0002] In the automotive industry, the quality of automotive display instruments is crucial. Vibrations occur during vehicle operation, which may affect the internal components and wiring connections of the instrument. In order to detect the quality of the instrument, it is necessary to detect the impact of vibration on the instrument so as to improve the connection method of the internal components and the wiring installation method.

[0003] The existing vibration detection structure for automotive display instruments still has the following technical problems in use, such as:

[0004] 1. The existing vibration detection structure of automotive display instruments is not convenient for quickly clamping and fixing instruments of different shapes during use, which leads to a reduction in detection efficiency.

[0005] 2. The existing vibration detection structure of automotive display instruments cannot detect vibrations from multiple angles during use, resulting in incomplete detection results. Consequently, when making subsequent improvements to the connection methods of internal instrument components and wiring installation methods, the factors considered are not comprehensive enough.

[0006] Therefore, a multi-directional vibration detection structure for automotive display instruments is needed to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a multi-directional vibration detection structure for automotive display instruments, in order to solve the problems mentioned in the background art that the existing vibration detection structures for automotive display instruments are not convenient for quickly clamping instruments of different shapes and cannot detect the effects of vibration from multiple directions.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A multi-directional vibration detection structure for an automotive display instrument includes a testing platform, a portable clamping mechanism, and a vibration mechanism. A support frame is mounted on the upper surface of the testing platform, and the portable clamping mechanism is mounted on the support frame. A ring plate is connected to the upper surface of the testing platform by a damping bearing, and the upper surface of the ring plate is densely covered with hemispheres. A servo motor is also mounted on the upper surface of the testing platform, and the servo motor is connected to the vibration mechanism via a belt drive assembly. A partial bearing of the vibration mechanism is connected to the portable clamping mechanism.

[0010] Preferably, the portable clamping mechanism includes a support platform and strip plates. The upper and lower sides of the support frame are connected to the upper and lower surfaces of the strip plates respectively via slider and groove assemblies. Two strip plates are provided, and the outer ends of the two strip plates are connected by a mounting plate. The mounting plate is provided with a handle for dragging. Each strip plate has a mounting groove on its side, and both ends of the mounting groove are provided with limiting grooves extending to the outside of the strip plate. A toothed plate is slidably connected inside the mounting groove, and both ends of the toothed plate are provided with square protrusions that are slidably connected to the limiting grooves at both ends. The lower surface of the toothed plate is provided with pressure teeth, and each pressure tooth is in contact with a support tooth. All the support teeth are installed on the upper surface of the unlocking rod, and the unlocking rod is movably connected through the mounting plate. The toothed plate is engaged with the corresponding limiting ratchet, and the limiting... Ratchets are evenly distributed on both the left and right sides inside the support frame. A through shaft is provided between the inner ends of the two strip plates, and the through shaft movably passes through an inclined groove. The inclined groove is located at the lower end of the piston rod, and the upper end of the piston rod extends into the inner side of the lower end of the support platform. The inner side of the lower end of the support platform and the upper end of the piston rod are seamlessly slidably connected. The lower end of the piston rod is slidably connected between two limiting plates, and the limiting plates are fixedly connected to the inner bottom end of the support frame. A piston tube is uniformly and slidably connected to the outer side of the upper end of the support platform, and one end of the piston shaft is seamlessly slidably connected inside the piston tube. The other end of the piston shaft extends out of the piston tube, and a limiting block is installed on the other end of the piston shaft. A spring is provided between the end of the piston shaft that extends into the piston tube and the support platform. The lower end of the support platform is fixedly connected to the upper surface of the support frame, and the support platform and the interior of the support frame are connected.

[0011] Preferably, the support platform is a hollow structure, and its axis is collinear with the axis of the piston rod.

[0012] Preferably, the lower part of the piston rod is a plate structure, and the length of the lower plate structure of the piston rod is less than the inner diameter of the lower structure of the support platform.

[0013] Preferably, the unlocking rod has a C-shaped structure, and the supporting teeth on the unlocking rod and the pressure teeth on the lower surface of the tooth plate are both right-angled trapezoids, and the inclined surface of the supporting teeth is in contact with the inclined surface of the corresponding pressure teeth.

[0014] Preferably, the height of the mounting groove is not less than three times the thickness of the toothed plate, the height of the compressed tooth is greater than the thickness of the toothed plate, and the thickness of the toothed plate is the same as the thickness of the limiting ratchet.

[0015] Preferably, the vibration mechanism includes a mounting tube and a support plate. The mounting tube is fixedly installed through a connecting plate, and one end of a limiting shaft is evenly connected to the connecting plate. The other end of the limiting shaft extends movably into a pre-reserved slot on the support plate. A spring is nested between the support plate and the connecting plate, outside the limiting shaft. The support plate is bearing-connected to the outer side of the lower end of the support platform, and the part of the support plate connected to the support platform is connected to a servo motor via a belt drive assembly. The lower end of the mounting tube extends movably into the upper end of a driven shaft, and the lower end of the driven shaft is located within the range of the ring plate. The upper end of the driven shaft is provided with two symmetrical U-shaped brackets, and a square block is slidably connected in each U-shaped bracket. A rotating shaft is bearing-connected to the square block, and a rocker is keyed to the middle of the rotating shaft. The two ends of the rotating shaft are slidably connected to corresponding displacement grooves, and the two displacement... The grooves are symmetrically arranged on the inner side of the support ring. The support ring is bearing connected to the inner side of the mounting tube, and the inner top of the mounting tube is also bearing connected to a support plate. The lower end of the support plate is movably penetrated by the vibrating rod, and the front end of the vibrating rod movably extends through the arc-shaped through groove to the outside of the mounting tube. The arc-shaped through groove penetrates the inner and outer sides of the mounting tube. One end of the connecting shaft is movably inserted into the rear end of the vibrating rod, and a spring three is connected between the end of the connecting shaft inserted into the rear end of the vibrating rod and the inner top of the rear end of the vibrating rod. The other end of the connecting shaft is fixedly connected to the protrusion on the lower surface of the support plate. A spring four is provided between the square block and the inner bottom of the U-shaped bracket that is slidably connected to it. A toggle block is provided on the lower surface of the rear end of the vibrating rod. A caster frame is bearing connected to the upper outer side of the mounting tube, and two casters are installed on the caster frame. The front end of the vibrating rod is located between the two casters.

[0016] Preferably, the position of the actuating block corresponds to the position of the rocker, and the width of the rocker is greater than the distance between the two ends of the arc-shaped through groove.

[0017] Preferably, a torsion spring is also provided between the square block and the rotating shaft to facilitate the rocker plate being positioned toward the actuating block without the influence of external force.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the multi-directional vibration detection structure of the vehicle display instrument can quickly clamp and fix instruments of different shapes, and during detection, it can detect vibrations from multiple directions, thereby detecting the impact of vibrations from various directions on the instrument, which helps to improve the comprehensiveness of the detection results.

[0019] 1. Place the instrument to be tested on the upper surface of the support platform, and then pull out the mounting plate. This will cause the strip plate to move the through shaft, which will move the piston rod downward. Through the support platform and the piston tube, the piston shaft can carry the limiting block closer to the instrument, thereby fixing the instrument. Since the limiting block is moved by gas, instruments of different shapes can be clamped. In addition, the ratchet structure composed of toothed plate and limiting ratchet can ensure the stability of the limiting block clamping the instrument.

[0020] 2. When the servo motor is running, the belt drive assembly drives the support plate to rotate, which in turn drives the connecting plate to rotate. This allows the lower end of the driven shaft to move between the hemispheres on the ring plate. As the lower end of the driven shaft moves on the hemispheres, the driven shaft will gradually move upward, which in turn drives the rocker to move upward. When the rocker contacts the actuating block, the driven shaft continues to move upward, causing the rocker to press against the actuating block. This causes the vibration rod with the actuating block to move toward the connecting shaft and compress the third spring. Subsequently, the driven shaft continues to move upward, causing the rocker to rotate and pass over the actuating block. At this time, the actuating block will instantly reset under the elastic force of the third spring, which allows the vibration rod to strike the side of the instrument. Through the rotation of the connecting plate and the first spring, the vibration rod can strike multiple positions on the side of the instrument, thus enabling a more comprehensive test of the instrument's vibration resistance performance.

[0021] 3. The ring plate is connected to the damping bearing of the testing table, which allows the ring plate to rotate while ensuring its relative position stability. This allows for adjustment of the position of the hemisphere, providing more data and ensuring the accuracy of the test results. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a schematic cross-sectional view of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged structural diagram of point A in the middle;

[0025] Figure 4 For the present invention Figure 2 Enlarged structural diagram of point B;

[0026] Figure 5 This is a partial cross-sectional view of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged structural diagram of point C;

[0028] Figure 7 This is a schematic diagram of the connection structure between the strip plate and the support frame of the present invention;

[0029] Figure 8 For the present invention Figure 7 A magnified structural diagram of point D in the middle.

[0030] In the diagram: 1. Testing table; 2. Ring plate; 3. Hemisphere; 4. Support platform; 5. Piston tube; 6. Piston shaft; 7. Limiting block; 8. Mounting tube; 9. Driven shaft; 10. Connecting plate; 11. Strip plate; 12. Servo motor; 13. Belt drive assembly; 14. Support plate; 15. Limiting shaft; 16. Spring 1; 17. Spring 2; 18. Piston rod; 19. Inclined groove; 20. Through shaft; 21. Limiting plate; 22. Support frame; 23. Caster; 24. Caster bracket 25. Arc-shaped through groove; 26. Vibration rod; 27. Spring three; 28. Connecting shaft; 29. ​​Support plate; 30. Support ring; 31. Rocker; 32. U-shaped bracket; 33. Spring four; 34. Square block; 35. Rotating shaft; 36. Displacement groove; 37. Actuating block; 38. Mounting plate; 39. Unlocking rod; 40. Limiting through groove; 41. Toothed plate; 42. Limiting ratchet; 43. Slider groove assembly; 44. Mounting groove; 45. Supporting tooth; 46. Pressure tooth. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-8 The present invention provides the following technical solution:

[0033] Example 1: To solve the problem that the vibration detection structure of the previous vehicle display instrument is not convenient for quick clamping of instruments of different shapes, the following technical solution is provided: a multi-directional vibration detection structure for vehicle display instruments, including a detection platform 1, a portable clamping mechanism and a vibration mechanism. A support frame 22 is installed on the upper surface of the detection platform 1, and a portable clamping mechanism is provided on the support frame 22.

[0034] The portable clamping mechanism includes a support platform 4 and strip plates 11. The upper and lower sides of the support frame 22 are connected to the upper and lower surfaces of the strip plates 11 respectively via slider and groove assemblies 43. Two strip plates 11 are provided, and the outer ends of the two strip plates 11 are connected by a mounting plate 38. The mounting plate 38 is provided with a handle for dragging. Each strip plate 11 has a mounting groove 44 on its side, and both ends of the mounting groove 44 are provided with limiting through grooves 40 extending to the outside of the strip plate 11. A toothed plate 41 is slidably connected inside the mounting groove 44, and both ends of the toothed plate 41 are provided with square protrusions that are slidably connected to the limiting through grooves 40 at both ends. The lower surface of the toothed plate 41 is provided with pressure teeth 46, and each pressure tooth 46 is in contact with a... All the supporting teeth 45 are installed on the upper surface of the unlocking rod 39, and the unlocking rod 39 is movably installed through the mounting plate 38. The toothed plate 41 is engaged with the corresponding limiting ratchet 42, and the limiting ratchet 42 is evenly arranged on the left and right sides inside the support frame 22. A through shaft 20 is provided between the inner ends of the two strip plates 11, and the through shaft 20 movably passes through the inclined groove 19. The inclined groove 19 is provided at the lower end of the piston rod 18, and the upper end of the piston rod 18 extends into the inner side of the lower end of the support platform 4. The inner side of the lower end of the support platform 4 is seamlessly slidably connected to the upper end of the piston rod 18. The lower end of the piston rod 18 is slidably connected between the two limiting plates 21, and the limiting plates 21 are fixedly connected to the inner bottom end of the support frame 22. The outer side of the upper end of the support platform 4 is at an equal angle. A piston tube 5 is connected to the piston rod 18, and one end of a piston shaft 6 is seamlessly slidably connected inside the piston tube 5. The other end of the piston shaft 6 extends outside the piston tube 5, and a limit block 7 is installed on the other end of the piston shaft 6. A spring 17 is installed between the end of the piston shaft 6 that extends into the piston tube 5 and the support platform 4. The lower end of the support platform 4 is fixedly connected to the upper surface of the support frame 22, and the support platform 4 and the support frame 22 are internally connected. The support platform 4 is a hollow structure, and its axis is collinear with the axis of the piston rod 18. First, the vehicle display instrument to be tested is placed on the support platform 4. Then, the mounting plate 38 is pulled outward, so that the two strip plates 11 connected to the mounting plate 38 move together with it. During the movement of the strip plates 11, they will drive the through shaft 20 connected to them to move together. The piston rod 18 moves downward under the action of the inclined groove 19. Since the support platform 4 is connected to the piston tube 5, the piston shaft 6 connected inside the piston tube 5 moves towards the support platform 4, thereby driving the limiting block 7 to move closer to the instrument and clamp the instrument. During the movement of the strip plate 11, the toothed plate 41 and the limiting ratchet 42 move relative to each other, thereby restricting the reverse movement of the strip plate 11. During the movement of the piston shaft 6, the second spring 17 is compressed. After the instrument detection is completed, the unlocking rod 39 is pulled outward, causing the supporting tooth 45 to squeeze the compressed tooth 46 until the toothed plate 41 and the limiting ratchet 42 are completely misaligned. At this point, the elastic potential energy of the second spring 17 is released, causing the mounting plate 38 and the piston rod 18 to reset, so that the instrument can be released.The lower part of the piston rod 18 is a plate structure, and the length of the lower plate structure of the piston rod 18 is less than the inner diameter of the lower structure of the support platform 4. The unlocking rod 39 has a C-shaped structure, and the supporting teeth 45 on the unlocking rod 39 and the pressure teeth 46 on the lower surface of the tooth plate 41 are both right-angled trapezoids. The inclined surface of the supporting teeth 45 contacts and connects with the inclined surface of the corresponding pressure teeth 46. The height of the mounting groove 44 is not less than three times the thickness of the tooth plate 41, and the height of the pressure teeth 46 is greater than the thickness of the tooth plate 41. The thickness of the tooth plate 41 is the same as the thickness of the limiting ratchet 42.

[0035] Example 2: To solve the problem that the vibration detection structure of the previous vehicle display instrument cannot detect the instrument from multiple angles, the following technical solution is provided. Specifically, the upper surface of the test platform 1 is connected to a ring plate 2 by a damping bearing, and the upper surface of the ring plate 2 is densely covered with hemispheres 3. A servo motor 12 is also installed on the upper surface of the test platform 1, and the servo motor 12 is connected to the vibration mechanism through a belt drive assembly 13. The partial bearing of the vibration mechanism is connected to a portable clamping mechanism.

[0036] The vibration mechanism includes a mounting tube 8 and a support plate 14. The mounting tube 8 is fixedly installed through a connecting plate 10, and one end of a limit shaft 15 is evenly connected to the connecting plate 10. The other end of the limit shaft 15 extends movably into a pre-drilled slot on the support plate 14. A spring 16 is nested between the support plate 14 and the connecting plate 10, nested on the outside of the limit shaft 15. The support plate 14 is bearing-connected to the outside of the lower end of the support platform 4, and the part of the support plate 14 connected to the support platform 4 is connected to the servo motor 12 via a belt drive assembly 13. The lower end of the mounting tube 8 extends movably into the upper end of a driven shaft 9, and the lower end of the driven shaft 9 is located within the range of the ring plate 2. Two symmetrical U-shaped brackets 32 are provided on the upper end of the driven shaft 9, and each U-shaped bracket 32 ​​is slidably connected to a... A square block 34 has a rotating shaft 35 that passes through it via a bearing. A rocker arm 31 is keyed to the middle of the rotating shaft 35. Both ends of the rotating shaft 35 are slidably connected to corresponding displacement grooves 36. Two displacement grooves 36 are symmetrically arranged inside the support ring 30. The support ring 30 is bearing-connected to the inside of the mounting tube 8. A support plate 29 is bearing-connected to the top of the mounting tube 8. The lower end of the support plate 29 is movably penetrated by a vibrating rod 26. The front end of the vibrating rod 26 movably extends through an arc-shaped through groove 25 to the outside of the mounting tube 8. The arc-shaped through groove 25 penetrates both the inner and outer sides of the mounting tube 8. One end of a connecting shaft 28 is movably inserted into the rear end of the vibrating rod 26. The end of the connecting shaft 28 extending into the rear end of the vibrating rod 26 is connected to the rear end of the vibrating rod 26. A spring 3 27 is connected between the top and bottom. The other end of the connecting shaft 28 is fixedly connected to the protrusion on the lower surface of the support plate 29. A spring 4 33 is provided between the bottom end of the square block 34 and the U-shaped bracket 32 ​​that is slidably connected to it. A toggle block 37 is provided on the lower surface of the rear end of the vibration rod 26. A caster frame 24 is connected to the upper outer bearing of the mounting tube 8, and two casters 23 are installed on the caster frame 24. The front end of the vibration rod 26 is located between the two casters 23. The servo motor 12 runs and drives the support plate 14 to rotate through the belt drive assembly 13. Because the support plate 14 is connected to the connecting plate 10 through the limit shaft 15, the connecting plate 10 will rotate around the support platform 4. During this process, the lower end of the driven shaft 9 will gradually contact different hemispheres 3. As the lower end of shaft 9 gradually moves to the top of hemisphere 3, rocker arm 31 gradually contacts and presses against actuating block 37, causing vibrating rod 26, which is equipped with actuating block 37, to move towards connecting shaft 28. When actuating block 37 can no longer move, rocker arm 31 continues to move upward with driven shaft 9, rotating until it disengages from actuating block 37. At this point, under the action of spring 27, vibrating rod 26 instantly resets, striking the side of the instrument. Through the gradual contact of the lower end of driven shaft 9 with hemisphere 3 at different positions, and the action of spring 16, vibrating rod 26 strikes different positions on the side of the instrument, thus achieving multi-directional vibration measurement. The position of actuating block 37 corresponds to the position of rocker arm 31.Furthermore, the width of the rocker arm 31 is greater than the distance between the two ends of the arc-shaped through groove 25, and a torsion spring is also provided between the square block 34 and the rotating shaft 35, so that the rocker arm 31 can be positioned towards the actuating block 37 without external force.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-directional vibration detection structure for a vehicle display instrument, comprising a detection platform (1), a portable clamping mechanism and a vibration mechanism, characterized in that: The upper surface of the detection platform (1) is provided with a supporting frame (22), and a portable clamping mechanism is arranged on the supporting frame (22); the upper surface of the detection platform (1) is connected with a ring plate (2) through a damping bearing, and the upper surface of the ring plate (2) is densely provided with hemispheres (3); the upper surface of the detection platform (1) is further provided with a servo motor (12), and the servo motor (12) is connected with a vibration mechanism through a belt transmission assembly (13); and the local bearing of the vibration mechanism is connected to the portable clamping mechanism. The portable clamping mechanism comprises a supporting table (4) and a strip-shaped plate (11); the upper and lower surfaces of the supporting frame (22) are respectively connected with the upper and lower surfaces of the strip-shaped plate (11) through a sliding block and sliding groove assembly (43); the side surface of the strip-shaped plate (11) is provided with a mounting groove (44), both ends of the mounting groove (44) are provided with limiting through grooves (40) penetrating through the strip-shaped plate (11), the inside of the mounting groove (44) is slidably connected with a toothed plate (41), both ends of the toothed plate (41) are provided with square protrusions slidably connected with the limiting through grooves (40) at both ends, respectively, and the lower surface of the toothed plate (41) is provided with pressure teeth (46), and each pressure tooth (46) is connected with a supporting tooth (45). The vibration mechanism comprises a mounting pipe (8) and a supporting plate (14); the mounting pipe (8) is fixedly connected with a connecting plate (10), one end of a limiting shaft (15) is connected to the connecting plate (10), the other end of the limiting shaft (15) is movably inserted into a reserved hole in the supporting plate (14), a spring (16) is arranged between the supporting plate (14) and the connecting plate (10) and is nested on the outer side of the limiting shaft (15), the lower end of the mounting pipe (8) is movably inserted into the upper end of a driven shaft (9), the lower end of the driven shaft (9) is arranged in the range of the ring plate (2), the upper end of the driven shaft (9) is provided with two symmetrical U-shaped supports (32), a square block (34) is slidably connected in each U-shaped support (32), a rotating shaft (35) is rotatably connected to the square block (34), and a rocker plate (31) is connected to the middle part of the rotating shaft (35) through a key.

2. The multi-directional vibration detection structure of a display instrument for vehicle according to claim 1, characterized in that: The strip-shaped plate (11) is provided with two, the outer ends of the two strip-shaped plates (11) are connected through the mounting plate (38), and the mounting plate (38) is provided with a handle for dragging, all the supporting teeth (45) are mounted on the upper surface of the unlocking rod (39), and the unlocking rod (39) is movably penetrated through the mounting plate (38), the tooth plate (41) is in meshing connection with the corresponding limiting ratchet (42), and the limiting ratchet (42) is evenly arranged on the left and right sides in the support frame (22), the inner ends of the two strip-shaped plates (11) are provided with a penetrating shaft (20), and the penetrating shaft (20) movably penetrates through the inclined groove (19), the inclined groove (19) is arranged at the lower end of the piston rod (18), and the upper end of the piston rod (18) extends into the inner side of the lower end of the support table (4), the inner side of the lower end of the support table (4) is in seamless sliding connection with the upper end of the piston rod (18), the lower end of the piston rod (18) is in sliding connection between the two limiting plates (21), and the limiting plates (21) are fixedly connected to the inner bottom end of the support frame (22), the upper end of the support table (4) is in equiangular through connection with the piston tube (5) on the outer side, and one end of the piston shaft (6) is in seamless sliding connection in the piston tube (5), the other end of the piston shaft (6) extends to the outside of the piston tube (5), and the other end of the piston shaft (6) is provided with a limiting block (7), the other end of the piston shaft (6) extending into the piston tube (5) is provided with a spring (17) between the support table (4), the lower end of the support table (4) is fixedly connected to the upper surface of the support frame (22), and the support table (4) is in through connection with the inside of the support frame (22).

3. The multi-directional vibration detection structure of a display instrument for vehicle according to claim 2, characterized in that: The support table (4) is a hollow structure, and the axis thereof is collinear with the axis of the piston rod (18).

4. The multi-directional vibration detection structure of a display instrument for vehicle according to claim 3, characterized in that: The lower part of the piston rod (18) is a plate structure, and the length of the lower part of the piston rod (18) is less than the inner diameter of the lower part of the support table (4).

5. The multi-directional vibration detection structure of a display instrument for vehicle according to claim 4, characterized in that: The unlocking rod (39) is a C-shaped structure, and the supporting teeth (45) provided on the unlocking rod (39) and the pressure teeth (46) provided on the lower surface of the tooth plate (41) are all right-angle ladder steps, and the inclined surface of the supporting teeth (45) is in contact connection with the inclined surface of the corresponding pressure teeth (46).

6. The multi-directional vibration detection structure of a display instrument for vehicle according to claim 5, characterized in that: The height of the mounting groove (44) is not less than 3 times the thickness of the tooth plate (41), the height of the pressure teeth (46) is greater than the thickness of the tooth plate (41), and the thickness of the tooth plate (41) is the same as the thickness of the limiting ratchet (42).

7. The multi-directional vibration detection structure of a display instrument for vehicle according to claim 6, characterized in that: The support plate (14) is connected to the outer side of the lower end of the support table (4) through a bearing, and the part where the support plate (14) is connected to the support table (4) is connected to the servo motor (12) through a belt transmission assembly (13), both ends of the rotating shaft (35) are respectively connected in the corresponding displacement slot (36), and the two displacement slots (36) are symmetrically arranged on the inner side of the support ring (30), the support ring (30) is connected to the inner side of the mounting pipe (8) through a bearing, and the inner top end of the mounting pipe (8) is also connected to the support disc (29) through a bearing, the lower end of the support disc (29) is movably penetrated by the vibrating rod (26), the front end of the vibrating rod (26) movably penetrates the arc-shaped through slot (25) and extends to the outside of the mounting pipe (8), the arc-shaped through slot (25) penetrates the inner and outer sides of the mounting pipe (8), one end of the connecting shaft (28) movably extends into the rear end of the vibrating rod (26), a spring three (27) is arranged between the end of the connecting shaft (28) extending into the rear end of the vibrating rod (26) and the rear end of the vibrating rod (26), the other end of the connecting shaft (28) is fixedly connected to the protrusion on the lower surface of the support disc (29), a spring four (33) is arranged between the square block (34) and the inner bottom end of the U-shaped support (32) connected thereto, the rear end of the vibrating rod (26) is provided with a pushing block (37), the upper outer side of the mounting pipe (8) is connected to the caster frame (24) through a bearing, and two casters (23) are installed on the caster frame (24), and the front end of the vibrating rod (26) is arranged between the two casters (23).

8. The multi-directional vibration detection structure of a display instrument for vehicle according to claim 7, characterized in that: The position of the pushing block (37) corresponds to the position of the flap (31), and the width of the flap (31) is greater than the distance between the two end points of the arc-shaped through slot (25).

9. The multi-directional vibration detection structure of a display instrument for vehicle according to claim 8, characterized in that: A torsional spring is further arranged between the square block (34) and the rotating shaft (35), so that the flap (31) is arranged towards the pushing block (37) without external force.

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