Passenger car instrument desk fixing structure

Abstract

The invention relates to the technical field of passenger cars, in particular to a passenger car instrument desk fixing structure which comprises a headstock frame and a fixing beam, a mounting sliding groove is formed in the middle section of the fixing beam, ejector rods are symmetrically hinged to the interior of the mounting sliding groove, one end of each ejector rod is hinged to an arc-shaped ejector plate in a damping mode, and the two ends of the headstock frame are symmetrically and rotationally connected with locking nuts. Locking screw heads in threaded fit with the locking nuts are arranged at the two ends of the fixing beam. When the rotary driving assembly drives the two ejector rods to deflect around the hinge shaft and pushes the arc-shaped ejector plate to drive the buffering and damping assembly to fixedly abut against one end of the headstock frame, efficient vibration suppression is achieved through the buffering and damping assembly, and therefore the arc-shaped ejector plate is matched with the ejector rods to be tightened between the fixed beam and the headstock frame; therefore, accessories such as the instrument desk can be stably installed between the fixed beam and the headstock frame, the stability of the accessories such as the instrument desk installed on the top of the fixed beam is improved, collision abrasion of the headstock frame and the accessories such as the fixed beam and the instrument desk is reduced, and driving safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bus instrument panel installation, and specifically to a fixing structure for a bus instrument panel. Background Art

[0002] In bus design, the instrument panel is a core component in the driving area, carrying important functional components such as instrument panels, central control screens, air-conditioning control modules, and safety systems. Its installation stability directly affects the accuracy of driving operations, ride comfort, and the NVH (Noise, Vibration, and Harshness) performance of the entire vehicle. Currently, bus instrument panels usually use a fixed beam structure to connect with the vehicle frame. The specific installation methods include: both ends of the fixed beam are rigidly connected to the vehicle frame through bolts / welding, and positioning structures (such as positioning blocks, buckles, etc.) are provided in the middle to enhance stability. The instrument panel body is fixed to the fixed beam through screws, buckles, or brackets, forming a layered installation mode (vehicle frame → fixed beam → instrument panel).

[0003] For example, in an existing bus instrument panel described in the patent application number "CN206885177U", the instrument panel can be pre-installed with the fixed beam first, and then the left and right ends of the fixed beam are hooked and connected to the vehicle body through hanging plates, and the middle part is fixed through positioning blocks.

[0004] However, in actual use, for such a fixing method, the left and right ends of the fixed beam are hooked and connected to the vehicle frame through hanging plates. It is easy to cause the hanging plates to collide with the vehicle body due to vibration on bumpy roads, and wear and looseness will occur under long-term vibration. At the same time, since the instrument panel is fixedly connected to the fixed beam, when the fixed beam becomes loose, it is easy to drive the instrument panel to shake accordingly, and collide and wear with the vehicle frame, and even cause slight displacement of the instrument panel, affecting the control safety. Summary of the Invention

[0005] The purpose of the present invention is to provide a fixing structure for a bus instrument panel to solve the problems raised in the above background art.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A fixing structure for a bus instrument panel includes a headstock and a fixed beam. An installation chute is provided in the middle section of the fixed beam. Inside the installation chute, ejector rods are symmetrically hinged. One end of each ejector rod is damped and hinged to an arc-shaped ejector plate. The two ends of the headstock are symmetrically rotatably connected with locking nuts. Locking screw heads that are threadedly matched with the locking nuts are provided at both ends of the fixed beam. The headstock is fixedly connected to the fixed beam through the locking nuts and the locking screw heads. The fixed beam is provided with a driving component for driving the ejector rods to deflect, and the arc-shaped ejector plate is provided with a buffer and shock-absorbing component for absorbing vibration.

[0008] Preferably, the drive assembly includes a double-sided rack slidably connected to the inside of the mounting groove, one end of the ejector rod is fixedly connected to an incomplete gear meshing with the double-sided rack, one end of the fixed beam is rotatably connected to an inner hexagonal adjusting screw 1, one end of the inner hexagonal adjusting screw 1 is embedded in the interior of the double-sided rack and forms a threaded connection with the double-sided rack.

[0009] Preferably, the buffer and shock absorbing assembly comprises a filling groove opened on one side of the arc-shaped ejection plate, one side of the filling groove is fixedly connected to a rubber bushing, and a non-Newtonian fluid is filled between the filling groove and the rubber bushing.

[0010] Preferably, a conical hole is symmetrically opened at one end of the headstock, one end of the locking nut is fixedly connected to a conical pin, and one end of the conical pin passes through the locking nut and is embedded in the conical hole.

[0011] Preferably, an annular gasket is sleeved on one end of the locking nut head, and the annular gasket is installed between the locking nut and the fixing beam.

[0012] Preferably, one end of the arc-shaped ejection plate is fixedly connected to a pressure sensor, and a sensing end of the pressure sensor is embedded in the filling tank to monitor the fluid pressure.

[0013] Preferably, a pressure indicator light is fixedly connected to the top of the fixed beam, the pressure sensor is electrically connected to the pressure indicator light, and the working status of the buffer shock absorbing assembly is displayed in real time through the color change of the pressure indicator light.

[0014] Preferably, a guide slot is symmetrically provided at one end of the fixed beam, the guide slot is internally slidably connected to a guide slider, the bottom of the guide slider is hinged to a follower support rod, one end of the follower support rod is hinged to the middle section of the ejection rod, and a positioning component for resisting and positioning the guide slider is installed at one end of the fixed beam.

[0015] Preferably, the positioning assembly includes two hexagonal adjusting screws rotatably connected to the inside of the guide slot, the inside of the guide slot is slidably connected with an interference slider threadedly connected to the two hexagonal adjusting screws, and one end of the guide slider is provided with a follow-up through hole adapted to the two hexagonal adjusting screws.

[0016] Preferably, the non-Newtonian fluid is a shear thickening silicon-based fluid with a viscosity ranging from 50-500 Pa·s@25°C.

[0017] Beneficial effects of the present invention:

[0018] 1. When the present invention tightens the locking nut and the locking screw head to form a threaded connection and drives the fixed beam and the headstock to form a rigid fixed connection, by rotating the driving assembly, the two ejector rods are driven to deflect around the hinge axis and assume a V-shaped closed posture. At the same time, the arc-shaped ejector plate is pushed to drive the buffer and shock absorption assembly to form a fixed contact with one end of the headstock, and the buffer and shock absorption assembly is used to achieve efficient vibration suppression, so that the arc-shaped ejector plate cooperates with the ejector rod to be tightened between the fixed beam and the headstock, so that accessories such as the instrument panel can be stably installed between the fixed beam and the headstock, thereby improving the stability of accessories such as the instrument panel installed on the top of the fixed beam, reducing the collision and wear between the headstock, the fixed beam and accessories such as the instrument panel, and improving driving safety.

[0019] 2. When the present invention guides the fixed beam to drive the locking screw head to align with the locking nut, through the automatic centering design of the tapered pin and the tapered hole, rapid and accurate positioning is achieved, and the radial sloshing is effectively eliminated by the tapered mating surface of the tapered hole and the tapered pin. The threaded connection between the locking nut and the locking screw head reliably prevents axial displacement, so that the connection between the headstock and the fixed beam has excellent anti-vibration performance, greatly reducing the risk of loosening during driving and significantly improving the overall stability of the headstock.

[0020] 3. When the present invention drives the two ejector rods to deflect around the hinge axis through the rotating driving assembly and assumes a V-shaped closed posture, and simultaneously pushes the arc-shaped ejector plate to closely fit with the headstock, the follower support rod moves with the ejector rod and drives the guiding slider to slide inside the guiding chute. Finally, the positioning assembly makes a contact fixation to form a stable triangular support structure, thereby effectively improving the connection stability between the fixed beam and the arc-shaped ejector plate. At the same time, the follower support rod cooperates with the ejector rod to form a high-strength triangular anti-collision structure at one end of the fixed beam, increasing the anti-impact performance of the overall device by more than 50% and effectively ensuring driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0022] Figure 1 is the overall structural schematic diagram of the present invention;

[0023] Figure 2 is the exploded view of the connection relationship between the headstock and the fixed beam of the present invention;

[0024] Figure 3 is the exploded view of the internal structure of the installation chute and the guiding chute of the present invention;

[0025] Figure 4It is an exploded perspective view of the driving component of the present invention;

[0026] Figure 5 It is an exploded internal structure view of the filling groove of the present invention;

[0027] Figure 6 It is an exploded internal structure view of the conical hole of the present invention;

[0028] Figure 7 It is an exploded view of the connection relationship between the second internal hexagonal adjusting screw of the present invention, the guiding slider and the abutting slider;

[0029] The reference numerals in the figure are as follows: 1, headstock; 2, fixed beam; 3, installation chute; 4, ejector rod; 5, arc-shaped ejector plate; 6, locking nut; 7, locking screw head; 8, double-sided rack; 9, incomplete gear; 10, first internal hexagonal adjusting screw; 11, filling groove; 12, rubber bushing; 13, non-Newtonian fluid; 14, conical hole; 15, taper pin; 17, annular gasket; 18, pressure sensor; 19, pressure indicator light; 20, guiding chute; 21, guiding slider; 22, follower support rod; 23, second internal hexagonal adjusting screw; 24, abutting slider; 25, follower through hole. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] A fixing structure for a bus instrument panel, as Figures 1 - 5 shown, includes a headstock 1 and a fixed beam 2. An installation chute 3 is provided in the middle section of the fixed beam 2. The inside of the installation chute 3 is symmetrically hinged with ejector rods 4. One end of the ejector rod 4 is damped and hinged with an arc-shaped ejector plate 5. The two ends of the headstock 1 are symmetrically rotatably connected with locking nuts 6. The two ends of the fixed beam 2 are provided with locking screw heads 7 that are threadedly matched with the locking nuts 6. The headstock 1 is fixedly connected to the fixed beam 2 through the locking nuts 6 and the locking screw heads 7. The fixed beam 2 is provided with a driving component for driving the ejector rod 4 to deflect, and the arc-shaped ejector plate 5 is provided with a buffer and shock absorption component for absorbing vibration;

[0032] Among them, the driving component includes a double-sided rack 8 slidably connected inside the installation chute 3. One end of the ejector rod 4 is fixedly connected with an incomplete gear 9 that meshes with the double-sided rack 8. One end of the fixed beam 2 is rotatably connected with a first internal hexagonal adjusting screw 10. One end of the first internal hexagonal adjusting screw 10 is embedded inside the double-sided rack 8 and forms a threaded connection with the double-sided rack 8;

[0033] Moreover, the buffer and shock absorbing assembly includes a filling groove 11 opened on one side of the arc-shaped ejector plate 5, one side of the filling groove 11 is fixedly connected to a rubber bushing 12, and a non-Newtonian fluid 13 is filled between the filling groove 11 and the rubber bushing 12;

[0034] Furthermore, the non-Newtonian fluid 13 is configured as a shear thickening silicon-based fluid with a viscosity ranging from 50 to 500 Pa·s@25°C.

[0035] When in use, firstly, the mechanical arm pulls the fixed beam 2 along the guide rail toward the direction of the headstock 1, and at the same time, the staff assists in guiding the fixed beam 2 to drive the locking screw head 7 to align with the locking nut 6, and then uses a torque screwdriver to tighten the locking nut 6, so that the locking nut 6 and the locking screw head 7 form a threaded connection, and at the same time, drive the fixed beam 2 and the headstock 1 to form a rigid fixed connection, and then rotate the hexagonal adjusting screw 10 to form a threaded connection with the double-sided rack 8, and push the double-sided rack 8 to slide in a straight line along the inner top of the installation slide groove 3, and at the same time make the double-sided rack 8 and the incomplete gear 8 aligned. The wheel 9 is meshed, and the incomplete gear 9 drives the ejector rod 4 to deflect around the hinge axis with the fixed beam 2, and at the same time, the two ejector rods 4 are deflected around the hinge axis with the fixed beam 2 to move closer to each other, so that the two ejector rods 4 present a V-shaped retracted posture, and the ejector rod 4 pushes the arc-shaped ejector plate 5 around the hinge axis to form a conflict with one end of the headstock 1, and at the same time, an initial preload force of 50N is applied to one end of the headstock 1, and the rubber bushing 12 is compressed to a designed deformation of 15%±3%, so that the non-Newtonian fluid 13 forms a 2mm uniform gap layer under the preload state;

[0036] Then, when the vehicle causes the headstock 1 to vibrate on a bumpy road, the vibration force is transmitted to the non-Newtonian fluid 13 through the headstock 1, causing the non-Newtonian fluid 13 to be squeezed and deformed. At the same time, the non-Newtonian fluid 13 is subjected to a shear load of >200Hz, and the fluid viscosity increases from 300Pa·s to 1200Pa·s within 5ms, absorbing more than 80% of the impact energy. The residual vibration is further attenuated by the hysteresis effect of the rubber bushing 12, and the vibration acceleration finally transmitted to the fixed beam 2 is <0.5m / s 2 , effectively absorb vibration energy, reduce the impact of vibration transmission to the headstock 1, and reduce the degree of wear between the headstock 1 and the surface-mounted components b and the headstock 1.

[0037] like Figure 1 and Figure 2 , Figure 6 As shown, a conical hole 14 is symmetrically opened at one end of the headstock 1, one end of the locking nut 7 is fixedly connected to a conical pin 15, one end of the conical pin 15 passes through the locking nut 6 and is embedded in the conical hole 14;

[0038] Among them, an annular gasket 17 is sleeved on one end of the locking nut head 7 , and the annular gasket 17 is installed between the locking nut 6 and the fixing beam 2 .

[0039] When in use, while the staff assists in guiding the fixed beam 2 to drive the locking screw head 7 to align with the locking nut 6, the pneumatic mechanical arm pushes the fixed beam 2 to drive the locking screw head 7 to push the tapered pin 15 through the locking nut 6 and insert it into the tapered hole 14, and the tapered surface of the tapered hole 14 and the tapered pin 15 are used to automatically correct the position deviation to achieve rapid fixation. After the tapered pin 15 is inserted into the tapered hole 14, the locking nut 6 is rotated to form a threaded connection with the locking screw head 7, and at the same time, the locking nut 6 pushes the annular gasket 17 to form a fixed contact with one end of the fixed beam 2, so that friction resistance is generated between the annular gasket 17 and the locking nut 6 and the fixed beam 2, reducing vibration loosening. At the same time, the tapered surface of the tapered hole 14 and the tapered pin 15 are set to eliminate radial shaking, and the locking nut 6 is used to prevent axial loosening, thereby improving the overall anti-vibration performance between the head frame 1 and the fixed beam 2.

[0040] like Figure 1 and Figure 2 , Figure 5 As shown, one end of the arc-shaped ejector plate 5 is fixedly connected to the pressure sensor 18, and the sensing end of the pressure sensor 18 is embedded in the filling tank 11 to monitor the fluid pressure;

[0041] The top of the fixed beam 2 is fixedly connected to a pressure indicator light 19 , the pressure sensor 18 is electrically connected to the pressure indicator light 19 , and the color change of the pressure indicator light 19 displays the working status of the buffer shock absorbing assembly in real time.

[0042] During use, when the non-Newtonian fluid 13 is subjected to force, the fluid pressure inside the filling tank 11 is monitored in real time by setting a pressure sensor 18, and the monitoring data is transmitted to the pressure indicator light 19. The working status of the buffer shock absorbing assembly is displayed in real time through the color change of the pressure indicator light 19, which is convenient for the staff to understand the working condition of the buffer shock absorbing assembly in time and facilitate subsequent maintenance.

[0043] like Figures 1 - 3 , Figure 7 As shown, a guide slot 20 is symmetrically provided at one end of the fixed beam 2, and a guide slider 21 is slidably connected inside the guide slot 20, and a follower support rod 22 is hinged at the bottom of the guide slider 21, and one end of the follower support rod 22 is hinged to the middle section of the ejection rod 4, and a positioning component for resisting and positioning the guide slider 21 is installed at one end of the fixed beam 2;

[0044] Among them, the positioning component includes a hexagon adjusting screw rod II 23 rotatably connected inside the guiding chute 20. A contact slider 24 threadedly connected to the hexagon adjusting screw rod II 23 is slidably connected inside the guiding chute 20. A follow-through through-hole 25 adapted to the hexagon adjusting screw rod II 23 is provided at one end of the guiding slider 21.

[0045] During use, when the rotation driving component pushes the two ejector rods 4 to deflect towards each other around the hinge axis with the fixed beam 2, causing the two ejector rods 4 to assume a V-shaped closed posture, and when pushing the arc-shaped ejector plate 5 to form a contact with one end of the headstock 1 around the hinge axis, the ejector rod 4 drives the follow-through support rod 22 to deflect around the hinge axis, and one end of the follow-through support rod 22 pulls the guiding slider 21 to slide along the length direction of the guiding chute 20. At the same time, the ejector rod 4 cooperates with the follow-through support rod 22 to form a triangular support structure between the fixed beam 2. Then, by rotating the hexagon adjusting screw rod II 23 to form a threaded connection with the contact slider 24, and pushing the contact slider 24 to slide along the inner wall of the guiding chute 20. At the same time, one end of the contact slider 24 slides along the inner wall of the guiding chute 20 until one end of the contact slider 24 forms a contact with the guiding slider 21. At this time, the end of the follow-through support rod 22 away from the ejector rod 4 forms a fixed contact with the guiding slider 21 through the contact slider 24. Thus, the follow-through support rod 22 cooperates with the ejector rod 4 to form a pair of stable triangular support structures in front of the fixed beam 2, effectively improving the installation stability of the fixed beam 2 and the arc-shaped ejector plate 5. At the same time, the ejector rod 4 and the follow-through support rod 22 form a pair of triangular anti-collision frames in front of the fixed beam 2, improving the anti-collision strength of the fixed beam 2 and enhancing the safety of the device.

[0046] The working principle of a bus instrument panel fixing structure provided by the present invention is as follows:

[0047] First, use the robotic arm to accurately move the fixed beam 2 along the guide rail to the installation position of the headstock 1, and through manual auxiliary adjustment, align the locking screw head 7 with the locking nut 6. Then use a torque screwdriver to tighten the locking nut 6, so that the locking screw head 7 pushes the tapered pin 15 into the inside of the tapered hole 14 to achieve centering and positioning. At the same time, use the annular gasket 17 to increase the friction between the locking nut 6 and the fixed beam 2 and improve the connection stability;

[0048] Then rotate the inner hexagon adjusting screw 10 to form a threaded connection with the double-sided rack 8, and push the double-sided rack 8 to move linearly along the inner top of the installation chute 3. At the same time, drive the double-sided rack 8 into the inner ring of the incomplete gear 9, and push the ejector rod 4 to deflect, so that the two ejector rods 4 are in a V-shaped closed posture, forming a stable support structure. At the same time, make the ejector rod 4 push the arc ejector plate 5 to tightly contact the headstock 1, and apply an initial pre-tightening force of 50 N to the headstock 1. Furthermore, make the rubber bushing 12 produce a compressive deformation of 15% ± 3%, and at the same time, the non-Newtonian fluid 13 forms a uniform buffer layer with a thickness of 2 mm in the pre-tightened state;

[0049] When the vehicle passes through a bumpy road section, the vibration energy is transmitted to the buffer shock absorption component through the headstock 1. When the non-Newtonian fluid 13 is subjected to a shear load greater than 200 Hz, the viscosity rapidly increases from 300 Pa·s to 1200 Pa·s within 5 ms. The fluid characteristics with rapid response can absorb more than 80% of the impact energy. Then, use the rubber bushing 12 to further attenuate the remaining vibration energy through the hysteresis effect. Finally, the vibration acceleration transmitted to the headstock 1 is controlled within <0.5 m / s 2 within the safe range;

[0050] At the same time, a pressure sensor 18 is set to continuously monitor the change of the fluid pressure inside the filling groove 11, and the working state of the buffer shock absorption component is visually displayed through the color change of the pressure indicator light 19, which is convenient for the staff to timely understand the working condition of the buffer shock absorption component and is convenient for later maintenance;

[0051] Then, as the two ejector rods 4 are in a V-shaped closed posture, forming a stable support structure, one end of the follower support rod 22 is pulled by the ejector rod 4, and a rigid triangular support structure is formed in front of the fixed beam 2. At the same time, rotate the inner hexagon adjusting screw 23 to form a threaded connection with the contact slider 24, and push the contact slider 24 to form a fixed contact with the guide slider 21 along the length direction of the guide chute 20, thereby effectively improving the support strength of the follower support rod 22, so that the rigid triangular support structure formed by the follower support rod 22 and the ejector rod 4 can withstand a lateral impact force of ≥500 N, effectively protecting the safety of the top-mounted accessories of the headstock 1.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A passenger car instrument panel fixing structure, comprising a head frame (1) and a fixing beam (2), characterized in that: The middle section of the fixed beam (2) is provided with a mounting slot (3), the interior of the mounting slot (3) is symmetrically hinged with an ejector rod (4), one end of the ejector rod (4) is damped and hinged with an arc-shaped ejector plate (5), the two ends of the headstock (1) are symmetrically rotatably connected with locking nuts (6), the two ends of the fixed beam (2) are provided with locking screw heads (7) threadedly matched with the locking nuts (6), the headstock (1) is fixedly connected to the fixed beam (2) through the locking nuts (6) and the locking screw heads (7), the fixed beam (2) is provided with a driving component for driving the ejector rod (4) to deflect, and the arc-shaped ejector plate (5) is provided with a buffering and shock-absorbing component for absorbing vibration.

2. A passenger car instrument panel fixing structure according to claim 1, characterized in that: The driving assembly comprises a double-sided rack (8) slidably connected inside the mounting slide groove (3); one end of the ejector rod (4) is fixedly connected to an incomplete gear (9) meshing with the double-sided rack (8); one end of the fixed beam (2) is rotatably connected to an inner hexagonal adjusting screw (10); one end of the inner hexagonal adjusting screw (10) is embedded in the inner part of the double-sided rack (8) and forms a threaded connection with the double-sided rack (8).

3. A passenger car instrument panel fixing structure according to claim 1, characterized in that: The buffer and shock absorbing assembly comprises a filling groove (11) opened on one side of the arc-shaped ejection plate (5), one side of the filling groove (11) is fixedly connected to a rubber bushing (12), and a non-Newtonian fluid (13) is filled between the filling groove (11) and the rubber bushing (12).

4. A passenger car instrument panel fixing structure according to claim 1, characterized in that: A conical hole (14) is symmetrically formed at one end of the headstock (1), one end of the locking nut (7) is fixedly connected to a conical pin (15), and one end of the conical pin (15) passes through the locking nut (6) and is embedded in the conical hole (14).

5. The passenger car instrument panel fixing structure according to claim 1, characterized in that: An annular gasket (17) is sleeved on one end of the locking nut head (7), and the annular gasket (17) is installed between the locking nut (6) and the fixing beam (2).

6. A passenger car instrument panel fixing structure according to claim 1, characterized in that: One end of the arc-shaped ejection plate (5) is fixedly connected to a pressure sensor (18), and a sensing end of the pressure sensor (18) is embedded in the filling groove (11) to monitor the fluid pressure.

7. A passenger car instrument panel fixing structure according to claim 6, characterized in that: The top of the fixed beam (2) is fixedly connected to a pressure indicator light (19), the pressure sensor (18) is electrically connected to the pressure indicator light (19), and the working state of the buffer shock absorbing component is displayed in real time through the color change of the pressure indicator light (19).

8. The passenger car instrument panel fixing structure according to claim 1, characterized in that: A guide slot (20) is symmetrically provided at one end of the fixed beam (2), the guide slot (20) is internally slidably connected to a guide slider (21), the bottom of the guide slider (21) is hinged to a follower support rod (22), one end of the follower support rod (22) is hinged to the middle section of the ejection rod (4), and a positioning component for contact positioning of the guide slider (21) is installed at one end of the fixed beam (2).

9. A passenger car instrument panel fixing structure according to claim 8, characterized in that: The positioning assembly comprises a second hexagonal adjusting screw (23) rotatably connected inside the guide slide groove (20); a resisting slider (24) threadedly connected to the second hexagonal adjusting screw (23) is slidably connected inside the guide slide groove (20); and a follow-up through hole (25) adapted to the second hexagonal adjusting screw (23) is provided at one end of the guide slider (21).

10. A passenger car instrument panel fixing structure according to claim 3, characterized in that: The non-Newtonian fluid (13) is a shear thickening silicon-based fluid with a viscosity ranging from 50 to 500 Pa·s@25°C.

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