A tire pressure monitoring instrument detection system and method

Abstract

The present application belongs to the technical field of sensor production, and particularly relates to a tire pressure monitoring instrument detection system and method, which comprises a vibration table assembly, a pressure sensing assembly, a collision resistance detection assembly, an auxiliary support assembly and a pushing assembly; the shell of the tire pressure monitoring instrument comprises a bearing part, a cover plate, a clamping plate and an open grommet; the upper end of the vibration table assembly is provided with the pressure sensing assembly in the middle, the upper end of the vibration table assembly is provided with the collision resistance detection assembly and the pushing assembly on one side, and the upper end of the vibration table assembly is provided with the auxiliary support assembly on the other side; the present application can realize rotation friction detection, cover plate collision resistance performance detection and anti-vibration reliability detection on the batch of shell of the tire pressure monitoring instrument, ensure that the rotation friction between the shell of the tire pressure monitoring instrument and the handle rod is moderate, and the shell will not be loose with the handle rod under the vibration working condition, and the cover plate collision resistance performance meets the protection requirement.

Description

Technical Field

[0001] This invention belongs to the field of sensor manufacturing technology, and specifically relates to a tire pressure monitoring instrument detection system and method. Background Technology

[0002] Since tire pressure directly affects the safety of electric vehicles, electronic safety sensors such as tire pressure monitoring sensors are installed on the tire valves to monitor tire pressure in real time. When the tire pressure monitoring sensor detects a change in the tire's internal pressure, it converts the pressure signal into a corresponding electrical signal, amplifies it, and transmits it to the signal acquisition module via the I2C protocol. The signal acquisition module then transmits the data collected via Bluetooth to the tire pressure monitoring instrument. An abnormal tire pressure will trigger a tire pressure alarm. The tire pressure monitoring instrument then sends the tire pressure data to a mobile app via Bluetooth. The mobile app can view real-time tire pressure data and trigger a tire pressure alarm if an abnormal tire pressure occurs.

[0003] Currently, there is a lack of suitable tire pressure monitoring (TPM) instruments for electric two-wheelers, designed for mounting on their handlebars. To address this, our company has designed a TPM instrument suitable for handlebar mounting. This instrument works in conjunction with tire pressure sensors mounted on the tires, allowing drivers to receive tire pressure warnings during driving. The housing of this TPM instrument mainly consists of a support unit, a cover plate, a clamping plate, and an open bushing. Before assembling the electrical components, the housing needs to undergo relevant tests using a TPM instrument testing system. These tests include: 1) verifying the impact resistance of the cover plate to ensure it can withstand impacts from both blunt and pointed objects; 2) checking the rotational friction between the clamping component and the handlebar; insufficient friction leads to wobbling and water ingress, while excessive friction hinders manual adjustment of the instrument's circumferential position; and 3) testing to ensure the overall system remains secure under vibration.

[0004] In the existing technology, there is a lack of tire pressure monitoring instrument detection systems that can meet the above detection requirements. Summary of the Invention

[0005] The purpose of this invention is to overcome at least one of the above-mentioned problems in the prior art and to provide a tire pressure monitoring instrument detection system and method.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution:

[0007] This invention provides a tire pressure monitoring instrument testing system, which includes a vibration table assembly, a pressure sensing assembly, an impact resistance testing assembly, an auxiliary support assembly, and a material pushing assembly;

[0008] The housing of the tire pressure monitoring instrument includes a support part, a cover plate, a clamping plate, and an open bushing. The cover plate is snapped onto the upper side of the support part, and the clamping plate is rotatably connected to one end of the lower side of the support part. The open bushing is clamped together between the support part and the clamping plate. The other end of the lower side of the support part is detachably fixed to the other end of the clamping plate by fasteners.

[0009] A pressure-sensing component is installed at the upper middle part of the vibration table assembly. An impact resistance detection component and a material pushing component are installed on one side of the upper end of the vibration table assembly. An auxiliary support component is installed on the other side of the upper end of the vibration table assembly. The vibration table assembly, pressure-sensing component, impact resistance detection component, and auxiliary support component work together to perform batch rotational friction force testing, cover plate impact resistance performance testing, and vibration reliability testing on the housing components of the tire pressure monitoring instrument.

[0010] Furthermore, in the above-mentioned tire pressure monitoring instrument detection system, the support part includes a support body, the interior of which is provided with a PCB board mounting cavity and a speaker mounting cavity located below one end. The side end of the support body is provided with a sound outlet hole communicating with the speaker mounting cavity. The sound outlet hole adopts a waterproof inclined design. The upper side of the support body is provided with a ring-shaped groove. The lower middle part of the support body is an upward arc-shaped surface and is provided with a first positioning groove. The first positioning groove is recessed inward to form a screw mounting hole for easy screw fixing of the PCB board. One lower end of the support body is provided with an ear seat, and the other lower end of the support body is provided with a fastening hole.

[0011] The cover plate includes a cover plate body and a ring-shaped snap-fit ​​plate disposed on its lower side, the ring-shaped snap-fit ​​plate cooperating with a ring-shaped slot.

[0012] The clamping plate includes an arc-shaped plate, the inner side of which is provided with a second positioning groove. One end of the arc-shaped plate is provided with an ear plate, which is rotatably connected to an ear seat via a pin. The other end of the arc-shaped plate is provided with a fastening hole, through which the fastener is screwed into the fastening hole, thereby fixing the clamping plate and the bearing part.

[0013] The open liner includes an open liner body. The outer center of the open liner body is symmetrically provided with two positioning protrusions that respectively cooperate with the first positioning groove and the second positioning groove. The two outer edges of the open liner body are provided with limiting protrusions that can prevent axial displacement after being clamped.

[0014] Furthermore, in the above-mentioned tire pressure monitoring instrument detection system, the vibration table assembly includes a base plate, a vibrator, a spring support member, and a vibration table. The vibration table is supported on the upper side of the base plate by the spring support member, and the vibrator is installed on the upper side of the base plate. The vibrator directly or indirectly drives the vibration table to vibrate through an eccentric cam.

[0015] Furthermore, in the above-mentioned tire pressure monitoring instrument detection system, the vibration table has an installation chamber inside that facilitates the installation of a lifting screw-tightening mechanism. The lifting screw-tightening mechanism includes a lifting push rod, a straightening tube, a movable plate, and screw-tightening machines. The lifting push rod and the straightening tube are fixed to the bottom surface of the installation chamber. The movable ends of the lifting push rod and the straightening tube are supported by the movable plate. Several screw-tightening machines are installed on the upper side of the movable plate.

[0016] Furthermore, in the above-mentioned tire pressure monitoring instrument detection system, the pressure sensing component includes a transverse linear guide pair, a vertical support rod, a crossbeam plate, and pressure sensors. The slide rail of the transverse linear guide pair is fixed on the upper side of the vibration table. The upper side of the slider of the transverse linear guide pair is supported by the vertical support rod, and several pressure sensors are installed on the side of the crossbeam plate near the impact resistance detection component.

[0017] Furthermore, in the aforementioned tire pressure monitoring instrument testing system, the impact resistance testing component includes a first upright plate fixed to the upper side of a vibration table. A standard handle rod and a support rod are movably supported in the first upright plate. A counterweight balance disc is fixed to the outer side of each of the standard handle rod and support rod within the first upright plate. A first servo motor for rotating the standard handle rod and a second servo motor for rotating the support rod are respectively mounted on the outer side of the first upright plate via brackets. Several impact resistance testing mechanisms are mounted on the outer side of the support rod. The impact resistance testing mechanism includes a sliding box that is vertically fixed to the support rod. The sliding box has exposed holes on both end plates. A buffer pad is adhered to the inner wall of each end plate, and the buffer pad has a mating exposed hole corresponding to the position of the exposed hole. A weight is slidably restricted within the sliding box. The weight has a blunt head and a pointed head that can extend from the exposed hole on both sides. A locking groove is provided on the side of the weight. A locking push rod is installed on the outer side of the sliding box near both ends. The movable rod of the locking push rod can extend into the locking groove of the weight, thereby locking the position of the weight.

[0018] Furthermore, in the above-mentioned tire pressure monitoring instrument detection system, the locking push rod is an electric push rod or a pneumatic push rod; when the locking push rod is a pneumatic push rod, two air passages are opened in the support rod, and the locking push rod located on the same side is connected to one end of the corresponding air passage through the first air passage pipe. Two air pumps are installed on the first upright plate base, and the two air pumps are respectively connected to the other end of the air passage through a semi-ring sleeved on the outside of the support rod.

[0019] Furthermore, in the above-mentioned tire pressure monitoring instrument detection system, the auxiliary support component includes a longitudinal linear guide pair and a second upright plate seat. The slide rail of the longitudinal linear guide pair is fixed on the upper side of the vibration table, and the upper side of the slider of the longitudinal linear guide pair is fixed with a second upright plate seat. The inner side of the second upright plate seat is embedded with a first positioning sleeve that cooperates with a standard handle rod and a second positioning sleeve that cooperates with a support rod.

[0020] Furthermore, in the above-mentioned tire pressure monitoring instrument detection system, the pusher assembly includes a pusher plate and a lateral displacement actuator for driving its displacement. The pusher plate has a clearance hole that mates with a standard handle rod. The lateral displacement actuator is a horizontally placed worm gear screw jack or a lateral push rod.

[0021] The present invention also provides a method for detecting a tire pressure monitoring instrument, based on the above-mentioned tire pressure monitoring instrument detection system, comprising the following steps:

[0022] S1. Install the tire pressure monitoring instruments in batches onto the standard handle rod of the impact resistance testing component. Use fasteners to fix the bearing part of the tire pressure monitoring instrument to the free end of the clamping plate. The position of each tire pressure monitoring instrument corresponds one-to-one with the position of the corresponding impact resistance testing mechanism. Activate the longitudinal linear guide pair of the auxiliary support component so that the first positioning sleeve and the second positioning sleeve of the second upright plate seat are respectively fitted onto the outside of the standard handle rod and the support rod.

[0023] S2. The transverse linear guide pair of the pressure sensing component is activated. The slider of the transverse linear guide pair drives the crossbeam plate to move laterally via the vertical support rod until the pressure sensor abuts against the outer side of the bearing part of the corresponding tire pressure monitoring instrument. The first servo motor of the impact resistance detection component is activated, which drives the standard handle rod and the tire pressure monitoring instrument on it to rotate toward the pressure sensor. The pressure data sensed by the pressure sensor is used to determine whether the rotational friction between the tire pressure monitoring instrument and the standard handle rod meets the requirements.

[0024] S3. The second servo motor of the impact resistance testing component starts, driving the support rod and the impact resistance testing mechanism on it to rotate, so that the slide box in the impact resistance testing mechanism is in a vertical state, and the weight is locked at the top of the slide box cavity. The upper locking push rod releases the lock on the weight, and the weight falls and uses its blunt end to perform the first impact resistance test on the cover plate of the tire pressure monitoring instrument. The lower locking push rod locks the weight, and the second servo motor starts again, so that the weight is locked back at the top of the slide box cavity. After the lock is released again, the weight falls and uses its pointed end to perform the second impact resistance test on the cover plate of the tire pressure monitoring instrument. The impact resistance performance of the cover plate is judged by the damage condition of the cover plate.

[0025] S4. Start the vibrator of the vibration table assembly for a period of time to put the tire pressure monitoring instrument mounted on the impact resistance testing assembly into a simulated vibration condition; then repeat step S2 and use the pressure data sensed by the pressure sensor to determine whether the housing of the tire pressure monitoring instrument and the standard handle rod have become loose due to vibration.

[0026] S5. After the test is completed, loosen the fasteners of each tire pressure monitoring instrument, activate the longitudinal linear guide pair of the auxiliary support component, so that the first positioning sleeve and the second positioning sleeve of the second upright plate seat are disengaged from the standard handle rod and the support rod respectively; activate the lateral displacement driver of the pusher component, so that the pusher plate moves along the standard handle rod toward the auxiliary support component, and removes each tire pressure monitoring instrument from the standard handle rod.

[0027] The beneficial effects of this invention are:

[0028] This invention provides a tire pressure monitoring instrument testing system, which mainly consists of a vibration table assembly, a pressure sensing assembly, an impact resistance testing assembly, an auxiliary support assembly, and a material pushing assembly. These components work together to perform batch rotational friction force testing, cover plate impact resistance testing, and vibration reliability testing on the tire pressure monitoring instrument housing, which is composed of a bearing portion, a cover plate, a clamping plate, and an open bushing. This ensures that the rotational friction force between the tire pressure monitoring instrument housing and the handle is moderate, preventing loosening under vibration conditions, while the cover plate's impact resistance meets protection requirements.

[0029] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the tire pressure monitoring instrument detection system of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the tire pressure monitoring instrument housing in this invention;

[0033] Figure 3 This is a half-sectional schematic diagram of the housing of the tire pressure monitoring instrument in this invention;

[0034] Figure 4 This is an exploded view of the tire pressure monitoring instrument housing in this invention;

[0035] Figure 5 This is a half-sectional schematic diagram of the bearing portion in this invention;

[0036] Figure 6 This is a schematic diagram of the structure of the bearing part at one angle in this invention;

[0037] Figure 7 This is a schematic diagram of the bearing portion from another angle in the present invention;

[0038] Figure 8 This is a schematic diagram of the cover plate in this invention;

[0039] Figure 9 This is a schematic diagram of the clamping plate in this invention;

[0040] Figure 10 This is a schematic diagram of the structure of the open bushing in this invention;

[0041] Figure 11 This is a schematic diagram of the vibration table assembly in this invention;

[0042] Figure 12 This is a schematic diagram of the pressure-sensing component in this invention;

[0043] Figure 13 This is a schematic diagram of the impact resistance detection component in this invention;

[0044] Figure 14 This is a schematic diagram of the impact resistance testing mechanism in this invention;

[0045] Figure 15 This is a schematic diagram of the structure of the counterweight in this invention;

[0046] Figure 16 This is a schematic diagram of the auxiliary support component in this invention;

[0047] Figure 17 This is a schematic diagram of the material pushing component in this invention;

[0048] In the attached diagram, the components represented by each number are as follows:

[0049] 1-Vibration table assembly, 11-Base plate, 12-Vibrator, 13-Spring support, 14-Vibration table, 15-Installation chamber, 16-Lifting push rod, 17-Straightening joint tube, 18-Moving plate, 19-Screw tightening machine;

[0050] 2-Pressure sensing component, 21-Horizontal linear guide pair, 22-Vertical support rod, 23-Horizontal beam plate, 24-Pressure sensor;

[0051] 3-Impact resistance testing component, 31-First upright plate base, 32-Standard handle rod, 33-Support rod, 34-First servo motor, 35-Second servo motor, 36-Counterweight balance plate, 37-Impact resistance testing mechanism, 371-Sliding box, 372-Exposed hole, 373-Buffer pad, 374-Flat hammer, 375-Blunt head, 376-Pointed head, 377-Locking groove, 378-Locking push rod, 38-Air pump, 39-Half ring;

[0052] 4-Auxiliary support assembly, 41-Longitudinal linear guide pair, 42-Second vertical plate base, 43-First positioning rotating sleeve, 44-Second positioning rotating sleeve;

[0053] 5-Pushing assembly, 51-Transverse displacement driver, 52-Pushing plate, 53-Allowing hole;

[0054] 6-Tire pressure monitoring instrument, 61-Bearing part, 611-Bearing part body, 612-PCB board mounting cavity, 613-Speaker mounting cavity, 614-Sound outlet, 615-Ring-shaped groove, 616-First positioning groove, 617-Screw mounting hole, 618-Ear seat, 619-Fastening hole, 62-Cover plate, 621-Cover plate body, 622-Ring-shaped snap-fit ​​plate, 63-Clamping plate, 631-Arc-shaped plate, 632-Second positioning groove, 633-Ear plate, 634-Fastening mating hole, 64-Open bushing, 641-Open bushing body, 642-Positioning protrusion, 643-Limiting protrusion. Detailed Implementation

[0055] 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.

[0056] like Figure 1 As shown, this embodiment provides a tire pressure monitoring instrument testing system. The system includes a vibration table assembly 1, a pressure sensing assembly 2, an impact resistance testing assembly 3, an auxiliary support assembly 4, and a pusher assembly 5. The pressure sensing assembly 2 is installed at the upper center of the vibration table assembly 1. The impact resistance testing assembly 3 and the pusher assembly 5 are installed on one side of the upper end of the vibration table assembly 1, and the auxiliary support assembly 4 is installed on the other side of the upper end of the vibration table assembly 1. The vibration table assembly 1, pressure sensing assembly 2, impact resistance testing assembly 3, and auxiliary support assembly 4 work together to perform batch rotational friction force testing, cover plate impact resistance performance testing, and vibration resistance reliability testing on the housing components of the tire pressure monitoring instrument 6.

[0057] like Figures 2-4As shown, the housing of the tire pressure monitoring instrument 6 includes a support portion 61, a cover plate 62, a clamping plate 63, and an open bushing 64. The cover plate 62 is snapped onto the upper side of the support portion 61, and the clamping plate 63 is rotatably connected to one end of the lower side of the support portion 61. The open bushing 64 is clamped between the support portion 61 and the clamping plate 63. The other end of the lower side of the support portion 61 is detachably and fixedly connected to the other end of the clamping plate 63 by fasteners.

[0058] like Figures 5-7 As shown, the support portion 61 includes a support portion body 611. The support portion body 611 has a PCB board mounting cavity 612 and a speaker mounting cavity 613 located below one end of the support portion body 611. A sound outlet 614 communicating with the speaker mounting cavity 613 is opened at the side end of the support portion body 611. The sound outlet 614 adopts a waterproof inclined design, with the outer port of the sound outlet 614 lower than the inner port. A ring-shaped groove 615 is opened inwardly on the upper side of the support portion body 611. The lower middle part of the support portion body 611 has an upwardly curved surface and a first positioning groove 616 is opened inwardly. The first positioning groove 616 is recessed inwardly to form a screw mounting hole 617 for easy screw fixing of the PCB board. An ear seat 618 is provided at one end of the lower side of the support portion body 611, and a fastening hole 619 is provided at the other end of the lower side of the support portion body 611.

[0059] like Figure 8 As shown, the cover plate 62 includes a cover plate body 621 and a ring-shaped snap-fit ​​plate 622 disposed on its lower side, the ring-shaped snap-fit ​​plate 622 cooperating with the ring-shaped snap-fit ​​groove 615.

[0060] like Figure 9 As shown, the clamping plate 63 includes an arc-shaped plate 631. A second positioning groove 632 is provided on the inner side of the arc-shaped plate 631. One end of the arc-shaped plate 631 is provided with an ear plate 633. The ear plate 633 is rotatably connected to the ear seat 618 through a pin. The other end of the arc-shaped plate 631 is provided with a fastening hole 634. Fasteners are screwed into the fastening hole 619 through the fastening hole 634, thereby fixing the clamping plate 63 and the bearing part 61.

[0061] like Figure 10 As shown, the open liner 64 includes an open liner body 641. Two positioning protrusions 642 are symmetrically provided on the outer middle of the open liner body 641. The two positioning protrusions 642 cooperate with the first positioning groove 616 and the second positioning groove 632 respectively. Limiting protrusions 643 are provided on the two outer edges of the open liner body 641 to prevent axial displacement after it is clamped.

[0062] like Figure 11As shown, the vibration table assembly 1 includes a base plate 11, a vibrator 12, a spring support 13, and a vibration table 14. The vibration table 14 is supported on the upper side of the base plate 11 by the spring support 13. The vibrator 12 is installed on the upper side of the base plate 11. The vibrator 12 directly or indirectly drives the vibration table 14 to vibrate through an eccentric cam.

[0063] Regarding the tightening of fasteners in the tire pressure monitoring instrument 6, a multi-axis robot and a screwdriver installed at its end as an actuator can be used, or a lifting screwdriver mechanism can be integrated into the vibration table 14. The vibration table 14 has an installation chamber 15 inside for easy installation of the lifting screwdriver mechanism. The lifting screwdriver mechanism includes a lifting push rod 16, a straightening tube 17, a movable plate 18, and screwdrivers 19. The lifting push rod 16 and the straightening tube 17 are fixed to the bottom surface of the installation chamber 15. The movable ends of the lifting push rod 16 and the straightening tube 17 jointly support the movable plate 18. Several screwdrivers 19 are installed on the upper side of the movable plate 18.

[0064] like Figure 12 As shown, the pressure-sensing assembly 2 includes a transverse linear guide pair 21, a vertical support rod 22, a crossbeam plate 23, and pressure sensors 24. The slide rail of the transverse linear guide pair 21 is fixed on the upper side of the vibration table 14. The upper side of the slider of the transverse linear guide pair 21 is supported by the vertical support rod 22 and the crossbeam plate 23 is supported. Several pressure sensors 24 are installed on the side of the crossbeam plate 23 that is close to the impact-resistant detection assembly 3.

[0065] like Figure 13 As shown, the impact resistance testing component 3 includes a first upright base 31 fixed to the upper side of the vibration table 14. A standard handle rod 32 and a support rod 33 are movably supported in the first upright base 31. A counterweight balance disc 36 is fixed to the outer side of each rod within the first upright base 31. A first servo motor 34 for rotating the standard handle rod 32 and a second servo motor 35 for rotating the support rod 33 are respectively mounted on the outer side of the first upright base 31 via brackets. Several impact resistance testing mechanisms 37 are mounted on the outer side of the support rod 33.

[0066] like Figures 14-15As shown, the impact resistance testing mechanism 37 includes a sliding box 371 that is vertically fixed to the support rod 33. Exposed holes 372 are provided on the end plates of the sliding box 371. Buffer pads 373 are adhered to the inner walls of the end plates of the sliding box 371, and the buffer pads 373 have mating exposed holes corresponding to the positions of the exposed holes 372. The inner cavity of the sliding box 371 has a non-circular cross-section. A weight 374 slides within the inner cavity of the sliding box 371. The weight 374 has a blunt head 375 and a pointed head 376 that can extend from the exposed holes 372 on its two sides. A locking groove 377 is provided on the side of the weight 374. A locking push rod 378 is installed on the outer side of the sliding box 371 near both ends. The movable rod of the locking push rod 378 can extend into the locking groove 377 of the weight 374, thereby locking the position of the weight 374.

[0067] In this embodiment, the locking push rod 378 is an electric push rod or a pneumatic push rod. When the locking push rod 378 is a pneumatic push rod, two air passages are opened in the support rod 33. The locking push rod 378 located on the same side is connected to one end of the corresponding air passage through the first air passage pipe. Two air pumps 38 are installed on the first upright plate base 31. The two air pumps 38 are respectively connected to the other end of the air passage through a semi-ring 39 sleeved on the outside of the support rod 33. The interior of the semi-ring 39 is provided with a radial connecting hole.

[0068] like Figure 16 As shown, the auxiliary support assembly 4 includes a longitudinal linear guide rail pair 41 and a second upright plate seat 42. The slide rail of the longitudinal linear guide rail pair 41 is fixed on the upper side of the vibration table 14. The upper side of the slider of the longitudinal linear guide rail pair 41 is fixed with the second upright plate seat 42. The inner side of the second upright plate seat 42 is embedded with a first positioning sleeve 43 that cooperates with the standard handle rod 32 and a second positioning sleeve 44 that cooperates with the support rod 33.

[0069] like Figure 17 As shown, the pusher assembly 5 includes a pusher plate 52 and a lateral displacement actuator 51 for driving its displacement. The pusher plate 52 has a clearance hole 53 that mates with the standard handle rod 32. The lateral displacement actuator 51 is a horizontally placed worm gear screw jack or a lateral push rod.

[0070] This embodiment also provides a method for detecting tire pressure monitoring instruments, including the following steps:

[0071] S1. Install the tire pressure monitoring instruments 6 in batches on the standard handle rod of the impact resistance testing component 3. Use fasteners to fix the bearing part 61 of the tire pressure monitoring instrument 6 and the free end of the clamping plate 63. The position of each tire pressure monitoring instrument 6 corresponds one-to-one with the position of the corresponding impact resistance testing mechanism 37. Activate the longitudinal linear guide pair 41 of the auxiliary support component 4 so that the first positioning sleeve 43 and the second positioning sleeve 44 of the second upright plate seat 42 are respectively fitted on the outside of the standard handle rod 32 and the support rod 33.

[0072] S2. The transverse linear guide pair 21 of the pressure sensing component 2 is activated. The slider of the transverse linear guide pair 21 drives the crossbeam plate 23 to move laterally via the vertical support rod 22 until the pressure sensor 24 abuts against the outer side of the bearing part 61 of the corresponding tire pressure monitoring instrument 6. The first servo motor 34 of the impact resistance detection component 3 is activated, driving the standard handle rod 32 and the tire pressure monitoring instrument 6 on it to rotate toward the pressure sensor 24. The pressure data sensed by the pressure sensor 24 is used to determine whether the rotational friction between the housing of the tire pressure monitoring instrument 6 and the standard handle rod 32 meets the requirements.

[0073] S3. The second servo motor 35 of the impact resistance detection component 3 starts, driving the support rod 33 and the impact resistance detection mechanism 37 on it to rotate, so that the slide box 371 in the impact resistance detection mechanism 37 is in a vertical state, and the weight 374 is locked at the top of the inner cavity of the slide box. The upper locking push rod releases the lock on the weight 374, and the weight 374 falls and uses its blunt head 375 on one side to perform the first impact resistance test on the cover plate of the tire pressure monitoring instrument 6. The lower locking push rod 378 locks the weight 374, and the second servo motor 35 is started again, so that the weight 374 is locked back at the top of the inner cavity of the slide box 371. After the lock is released again, the weight 374 falls and uses its pointed head 376 on one side to perform the second impact resistance test on the cover plate of the tire pressure monitoring instrument 6. The impact resistance performance of the cover plate 62 is judged by the damage condition of the cover plate 62.

[0074] S4. Start the vibrator 12 of the vibration table assembly 1 for a period of time so that the tire pressure monitoring instrument 6 mounted on the impact resistance detection assembly 3 is in a simulated vibration condition; then repeat step S2 and use the pressure data sensed by the pressure sensor 24 to determine whether the tire pressure monitoring instrument 6 and the standard handle rod 32 have become loose due to vibration.

[0075] S5. After the test is completed, loosen the fasteners of each tire pressure monitoring instrument 6, activate the longitudinal linear guide pair 41 of the auxiliary support assembly 4, so that the first positioning sleeve 43 and the second positioning sleeve 44 of the second upright plate seat 42 are disengaged from the standard handle rod 32 and the support rod 33 respectively; activate the lateral displacement driver 51 of the pusher assembly 5, so that the pusher plate 52 moves along the standard handle rod 32 toward the auxiliary support assembly 4, and remove each tire pressure monitoring instrument 6 from the standard handle rod 32.

[0076] This invention provides a tire pressure monitoring instrument testing system, which mainly consists of a vibration table assembly 1, a pressure sensing assembly 2, an impact resistance testing assembly 3, an auxiliary support assembly 4, and a material pushing assembly 5. These components work together to perform batch rotational friction force testing, cover plate impact resistance testing, and vibration reliability testing on the housing of the tire pressure monitoring instrument, which is composed of a bearing part 61, a cover plate 62, a clamping plate 63, and an open bushing 64. This system ensures that the rotational friction force between the housing and the handle of the tire pressure monitoring instrument is moderate, preventing loosening under vibration conditions, while the cover plate's impact resistance meets protection requirements.

[0077] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A tire pressure monitoring instrument detection system, characterized in that, The testing system includes a vibration table assembly, a pressure sensing assembly, an impact resistance testing assembly, an auxiliary support assembly, and a material pushing assembly; The housing of the tire pressure monitoring instrument includes a support part, a cover plate, a clamping plate, and an open bushing. The cover plate is snapped onto the upper side of the support part, and the clamping plate is rotatably connected to one end of the lower side of the support part. The open bushing is clamped together between the support part and the clamping plate. The other end of the lower side of the support part is detachably fixed to the other end of the clamping plate by fasteners. A pressure-sensing component is installed at the upper middle part of the vibration table assembly. An impact resistance detection component and a material pushing component are installed on one side of the upper end of the vibration table assembly. An auxiliary support component is installed on the other side of the upper end of the vibration table assembly. The vibration table assembly, pressure-sensing component, impact resistance detection component, and auxiliary support component work together to perform batch rotational friction force testing, cover plate impact resistance performance testing, and vibration resistance reliability testing on the housing of the tire pressure monitoring instrument. The vibration table assembly includes a base plate, a vibrator, a spring support member, and a vibration table. The vibration table is supported on the upper side of the base plate by the spring support member, and the vibrator is installed on the upper side of the base plate. The vibrator directly or indirectly drives the vibration table to vibrate through an eccentric cam. The pressure-sensing component includes a transverse linear guide pair, a vertical support rod, a crossbeam plate, and pressure sensors. The slide rail of the transverse linear guide pair is fixed to the upper side of the vibration table. The upper side of the slider of the transverse linear guide pair is supported by the vertical support rod and a crossbeam plate is installed on the side of the crossbeam plate near the impact resistance detection component. The impact resistance testing assembly includes a first upright plate fixed to the upper side of a vibration table. A standard handle rod and a support rod are movably supported in the first upright plate. A counterweight balance plate is fixed to the outer side of each of the standard handle rod and support rod within the first upright plate. A first servo motor for rotating the standard handle rod and a second servo motor for rotating the support rod are respectively mounted on the outer side of the first upright plate via brackets. Several impact resistance testing mechanisms are mounted on the outer side of the support rod. Each impact resistance testing mechanism includes a sliding box fixed perpendicularly to the support rod. Exposed holes are opened on the end plates of the sliding box. Buffer pads are adhered to the inner walls of the end plates of the sliding box. The buffer pads have mating exposed holes corresponding to the positions of the exposed holes. A weight is slidably restricted within the sliding box. A blunt head and a pointed head, respectively, are installed on both sides of the weight, extending from the exposed holes. A locking groove is opened on the side of the weight. A locking push rod is installed on the outer side of the sliding box near both ends. The movable rod of the locking push rod can extend into the locking groove of the weight, thereby locking the position of the weight. The auxiliary support assembly includes a longitudinal linear guide rail pair and a second vertical plate seat. The slide rail of the longitudinal linear guide rail pair is fixed on the upper side of the vibration table. The upper side of the slider of the longitudinal linear guide rail pair is fixed with the second vertical plate seat. The inner side of the second vertical plate seat is embedded with a first positioning rotating sleeve that cooperates with a standard handle rod and a second positioning rotating sleeve that cooperates with a support rod. The pushing assembly includes a pushing plate and a lateral displacement actuator for driving its displacement. The pushing plate has a clearance hole that mates with a standard handle rod. The lateral displacement actuator is a horizontally placed worm gear screw jack or a lateral push rod.

2. The tire pressure monitoring instrument detection system according to claim 1, characterized in that, The support portion includes a support portion body, the interior of which is provided with a PCB board mounting cavity and a speaker mounting cavity located below one end. The side end of the support portion body is provided with a sound outlet hole communicating with the speaker mounting cavity. The sound outlet hole adopts a waterproof inclined design. The upper side of the support portion body is provided with a ring-shaped groove. The lower middle part of the support portion body is an upward arc-shaped surface and is provided with a first positioning groove. The first positioning groove is recessed inward to form a screw mounting hole for easy screw fixing of the PCB board. One lower end of the support portion body is provided with an ear seat, and the other lower end of the support portion body is provided with a fastening hole. The cover plate includes a cover plate body and a ring-shaped snap-fit ​​plate disposed on its lower side, the ring-shaped snap-fit ​​plate cooperating with a ring-shaped slot. The clamping plate includes an arc-shaped plate, the inner side of which is provided with a second positioning groove. One end of the arc-shaped plate is provided with an ear plate, which is rotatably connected to an ear seat via a pin. The other end of the arc-shaped plate is provided with a fastening hole, through which the fastener is screwed into the fastening hole, thereby fixing the clamping plate and the bearing part. The open liner includes an open liner body. The outer center of the open liner body is symmetrically provided with two positioning protrusions that respectively cooperate with the first positioning groove and the second positioning groove. The two outer edges of the open liner body are provided with limiting protrusions that can prevent axial displacement after being clamped.

3. The tire pressure monitoring instrument detection system according to claim 2, characterized in that, The vibration table has an installation chamber inside for easy installation of a lifting screw-tightening mechanism. The lifting screw-tightening mechanism includes a lifting push rod, a straightening tube, a movable plate, and screw-tightening machines. The lifting push rod and the straightening tube are fixed to the bottom of the installation chamber. The movable ends of the lifting push rod and the straightening tube are supported by the movable plate. Several screw-tightening machines are installed on the upper side of the movable plate.

4. The tire pressure monitoring instrument detection system according to claim 3, characterized in that, The locking push rod is an electric push rod or a pneumatic push rod; when the locking push rod is a pneumatic push rod, two air passages are opened in the support rod, and the locking push rod located on the same side is connected to one end of the corresponding air passage through the first air passage pipe. Two air pumps are installed on the first upright plate base, and the two air pumps are respectively connected to the other end of the air passage through a semi-ring sleeved on the outside of the support rod.

5. A method for detecting a tire pressure monitoring instrument, implemented based on the tire pressure monitoring instrument detection system of claim 4, characterized in that, Includes the following steps: S1. Install the tire pressure monitoring instruments in batches onto the standard handle rod of the impact resistance testing component. Use fasteners to fix the bearing part of the tire pressure monitoring instrument to the free end of the clamping plate. The position of each tire pressure monitoring instrument corresponds one-to-one with the position of the corresponding impact resistance testing mechanism. Activate the longitudinal linear guide pair of the auxiliary support component so that the first positioning sleeve and the second positioning sleeve of the second upright plate seat are respectively fitted onto the outside of the standard handle rod and the support rod. S2. The transverse linear guide pair of the pressure sensing component is activated. The slider of the transverse linear guide pair drives the crossbeam plate to move laterally via the vertical support rod until the pressure sensor abuts against the outer side of the bearing part of the corresponding tire pressure monitoring instrument. The first servo motor of the impact resistance detection component is activated, which drives the standard handle rod and the tire pressure monitoring instrument on it to rotate toward the pressure sensor. The pressure data sensed by the pressure sensor is used to determine whether the rotational friction between the tire pressure monitoring instrument and the standard handle rod meets the requirements. S3. The second servo motor of the impact resistance testing component starts, driving the support rod and the impact resistance testing mechanism on it to rotate, so that the slide box in the impact resistance testing mechanism is in a vertical state, and the weight is locked at the top of the slide box cavity. The upper locking push rod releases the lock on the weight, and the weight falls and uses its blunt end to perform the first impact resistance test on the cover plate of the tire pressure monitoring instrument. The lower locking push rod locks the weight, and the second servo motor starts again, so that the weight is locked back at the top of the slide box cavity. After the lock is released again, the weight falls and uses its pointed end to perform the second impact resistance test on the cover plate of the tire pressure monitoring instrument. The impact resistance performance of the cover plate is judged by the damage condition of the cover plate. S4. Start the vibrator of the vibration table assembly for a period of time so that the tire pressure monitoring instrument mounted on the impact resistance testing assembly is in a simulated vibration condition. Then repeat step S2 to determine whether the housing of the tire pressure monitoring instrument and the standard handle rod have become loose due to vibration by using the pressure data sensed by the pressure sensor. S5. After the test is completed, loosen the fasteners of each tire pressure monitoring instrument and start the longitudinal linear guide pair of the auxiliary support component so that the first positioning sleeve and the second positioning sleeve of the second upright plate seat are disengaged from the standard handle rod and the support rod, respectively. Activate the lateral displacement driver of the pusher assembly, causing the pusher plate to move along the standard handle rod toward the auxiliary support assembly, thereby detaching each tire pressure monitoring instrument from the standard handle rod.

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