Real-time tire pressure monitoring electric tire valve assembly

Abstract

The invention relates to the field of automobile tire central inflation and deflation systems, and particularly discloses a real-time tire pressure monitoring electric tire valve assembly which comprises an air pressure monitoring device, a tire pressure control device and a tire pressure control device. The air injection device is used for injecting air into the tire when the air pressure in the tire is lower than a preset value; the gas injection device comprises a protective shell which is mounted on a hub of a tire and is used for forming a mounting cavity; the pump body part is arranged in the mounting cavity; the conveying pipe is used for forming a first connecting part connected with the output end of the pump body piece and a second connecting part communicated with an air passage connector of a tire; the control piece is used for controlling the opening and closing state of the second connecting part; wherein the protective shell is arranged in the middle of a hub of the tire; and a port for communicating the input end of the pump body piece with the external environment is formed in the middle of the protective shell. The air pressure monitoring device obtains the air pressure in the tire in real time, the air pressure in the tire is controlled in real time, and safe driving of the tire is better guaranteed through real-time tire pressure monitoring and adjustment.

Description

Technical Field

[0001] The present application relates to the field of automobile tire central inflation and deflation systems, and in particular to a real-time tire pressure monitoring electric tire valve assembly. Background Art

[0002] In recent years, wireless tire pressure monitoring systems have been sought after and loved by car users. It is a tire pressure monitoring system that can display tire pressure in real time, helping drivers to better manage tires, extend tire life, reduce accident risks, and improve overall vehicle performance and reliability. The current wireless tire pressure monitoring system is only an auxiliary system that can only monitor tire pressure but cannot manage it. Drivers still need to adjust tire pressure in other ways.

[0003] The current wireless tire pressure monitoring system technology cannot monitor tire pressure in real time. Summary of the invention

[0004] In order to improve the problem of being unable to monitor tire pressure in real time, the present application provides a real-time tire pressure monitoring electric tire valve assembly.

[0005] The present application provides a real-time tire pressure monitoring electric tire valve assembly adopts the following technical solution: A real-time tire pressure monitoring electric tire valve assembly, comprising: an air pressure monitoring device for monitoring the air pressure in the tire; an air injection device for injecting air into the tire when the air pressure in the tire is lower than a preset value; the air injection device comprises: a protective shell mounted on the wheel hub of the tire and used to form an installation chamber; a pump body member arranged in the installation chamber; a delivery pipe for forming a first connection portion connected to the output end of the pump body member and a second connection portion connected to the airway interface of the tire; a control member for controlling the opening and closing state of the second connection portion; wherein the protective shell is arranged in the middle of the wheel hub of the tire; and the middle of the protective shell forms a through hole for connecting the input end of the pump body member with the external environment.

[0006] By adopting the above technical solution, the air pressure in the tire can be detected in real time, and when the air pressure in the tire is insufficient, air can be injected in time to ensure the balance of the tire pressure, avoid the situation where the vehicle is easily out of control due to uneven air pressure in multiple tires, and better improve driving safety. By installing the protective shell on the wheel hub of the tire, the air injection device can adjust the air pressure in the tire in time during the driving process of the vehicle, thereby ensuring the balance of the air pressure in multiple tires during the driving process of the vehicle.

[0007] Optionally, a shock absorbing device is arranged between the pump body and the protective shell; the shock absorbing device is used to establish a shock absorbing connection between the pump body and the protective shell.

[0008] By adopting the above-mentioned technical scheme, the purpose of the shock-absorbing device between the pump body and the protective shell is to reduce the shock between the pump body and the tire hub. On the one hand, it is to prevent the tire from continuously rotating at high speed when the vehicle is running, which is equivalent to the tire hub causing slight vibration. The shock-absorbing device can prevent the vibration from being transmitted to the pump body and protect the safety of the pump body. At the same time, it can also prevent the vibration generated by the tire running on uneven roads and isolate it. Since the pump body itself may vibrate when it is operating, the shock-absorbing device is provided to prevent the vibration from being transmitted to the tire hub, thereby avoiding the dynamic balance problem caused by uneven mass distribution of the tire hub due to vibration, thereby better protecting the safety of the pump body and the normal rotation of the tire hub.

[0009] Optionally, the shock absorbing device includes: a flexible liquid bag, a first connecting member, a second connecting member and an elastic member; the flexible liquid bag is filled with a fluid liquid; the first connecting member and the second connecting member are both fixed to the flexible liquid bag, and the flexible liquid bag is located between the first connecting member and the second connecting member; the elastic member is used to make the first connecting member and the second connecting member squeeze the elastic member; the first connecting member forms a first pressure surface in contact with the flexible liquid bag, the second connecting member forms a second pressure surface in contact with the flexible liquid bag, and the first pressure surface and the second pressure surface both cover the flexible liquid bag; the first connecting member is connected to the protective shell, and the second connecting member is used to install the pump body.

[0010] By adopting the above technical solution: the method of using a flexible liquid bag for shock absorption is to reduce the source of vibration through liquid, which has a better shock absorption effect than the design of a traditional flexible shock-absorbing pad. In addition, since the flexible liquid bag is filled with liquid, and the liquid has no specific shape, during the rotation of the wheel hub, the liquid in the flexible liquid bag will bulge outward in some cases due to inertia, and after the flexible liquid bag bulges outward, the uniformity of the mass distribution of the tire will change, which is equivalent to a problem with the dynamic balance of the tire. For example, to avoid this situation, the flexible liquid bag is pressed by the first connecting member and the second connecting member, which can prevent the flexible liquid bag from bulging outward, thereby better preventing the shape of the flexible liquid bag from changing, and better preventing the dynamic balance problem of the tire. The purpose of using elastic members to provide the first connecting member and the second connecting member with the force to press the flexible liquid bag is that the elastic members can have the possibility of elastic deformation or deformation in most flexible liquid bags. If the first connecting member and the second connecting member are directly used to tightly press the flexible liquid bag, then after a long time of use, the flexible liquid bag will undergo elastic deformation or deformation, which will cause the pressure of the first connecting member and the second connecting member pressing the flexible liquid bag to be greatly reduced, or even make it impossible to directly press the flexible liquid bag. Therefore, the use of elastic members can increase the service life and better ensure that the flexible liquid bag is pressed to prevent the flexible liquid bag from bulging and causing dynamic balance problems.

[0011] Optionally, the shock absorbing device also includes: a limiting member for forming a limiting chamber; the first connecting member and the flexible liquid bag are both arranged in the limiting chamber; the flexible liquid bag is pressed against the inner wall surface of the limiting chamber; the elastic member is used to enable the first connecting member and the second connecting member to squeeze the flexible liquid bag in the limiting chamber to make the mass of the flexible liquid bag uniform.

[0012] By adopting the above technical solution, the flexible liquid bag is confined in a limiting chamber, so that the flexible liquid bag can be prevented from bulging in a direction perpendicular to the clamping force of the first connecting member and the second connecting member, so that the flexible bag only has a bulge and deforms in the direction of the clamping force of the first connecting member and the second connecting member, and the first connecting member and the second connecting member will compress the flexible liquid bag, thereby preventing the flexible liquid bag from bulging, better preventing the problem of dynamic balance, and better ensuring the normal use of the tire.

[0013] Optionally, a tightening member for connecting the delivery tube to the installation chamber is provided in the installation chamber; the delivery tube is a flexible hose; the tightening member applies a tightening external force to the delivery tube so that the delivery tube forms a delivery cavity with a fixed shape.

[0014] By adopting the above technical solution, the delivery tube is a flexible hose, so during installation, the delivery tube can be bent better, so that it is easier and more labor-saving to connect the delivery tube to the tire's airway interface. However, the use of a flexible hose will cause the delivery tube to shake easily with the rotation of the tire, and the shaking of the flexible hose will affect the dynamic balance of the tire, making the tire unable to run stably. Therefore, the use of a tightening piece to tighten the delivery tube is to prevent the delivery tube from shaking and better avoid dynamic balance problems.

[0015] Optionally, a plurality of weight liquid bags and a mass adjusting member connecting the plurality of weight liquid bags to the flexible liquid bag are also provided in the installation chamber; the mass adjusting member is used to add the liquid in the flexible liquid bag to one or more of the weight liquid bags to make the tire mass evenly distributed.

[0016] By adopting the above-mentioned technical scheme, the liquid in the flexible liquid bag can be discharged outwardly into the counterweight liquid bag, thereby achieving the goal of setting a dynamic balance block on the wheel hub of the tire to better solve the dynamic balance problem. At the same time, the liquid in the flexible liquid bag is discharged outwardly, and due to the action of the elastic member, the first connecting member and the second connecting member can keep pressing the flexible liquid bag. Then, even if the liquid is discharged outwardly, the flexible liquid bag will not bulge, so that the flexible liquid bag will not affect the original dynamic balance of the wheel hub of the tire, thereby ultimately achieving both the beneficial effect of adjusting the dynamic balance of the wheel hub of the tire and the beneficial effect of maintaining a stable shock absorption effect.

[0017] Optionally, the mass adjustment component includes: a control valve, a hydraulic pump, a main pipeline and a branch pipeline; the main pipeline is connected to the flexible liquid bag, and a plurality of branch pipelines are provided, and the plurality of branch pipelines are used to connect a plurality of the counterweight liquid bags with the main pipeline; the control valve is provided on the branch pipeline; and the hydraulic pump is provided on the main pipeline.

[0018] By adopting the above technical solution, the liquid installation requirements can be distributed to each balancing liquid bag, so as to better adjust the dynamic balance problem.

[0019] Optionally, a pipe groove and an embedding groove are provided in the installation chamber; the pipe groove is used to accommodate the branch pipeline and the main pipeline; the embedding groove is used to accommodate the counterweight liquid bag; an elastic cover is provided on the embedding groove, and the elastic cover is used to form an elastic displacement plane abutting against the counterweight liquid bag.

[0020] By adopting the above technical solution, the branch pipeline and the main pipeline are arranged in the pipeline groove, so as to prevent the branch pipeline and the main pipeline from shaking during the rotation of the tire. In addition, the elastic displacement plane is in contact with the weight liquid bag, that is, the elastic displacement plane presses the weight liquid bag, so that the weight liquid bag will also avoid bulging and affecting the dynamic balance of the tire wheel hub like the flexible liquid bag, so as to better ensure the smooth operation of the tire.

[0021] Optionally, a filter element for filtering out dust and impurities is provided at the through opening. By adopting this technical solution, the purpose is to prevent dust from entering the pump body and affecting the service life.

[0022] Optionally, the protective shell includes an abutment plate, a cover body and a flexible pad; the abutment plate is used to abut against the side of the wheel hub of the tire, and the cover body is formed in the middle of the abutment plate; an installation opening is opened on the cover body, and the flexible pad is used to seal the installation opening and to abut against the wheel hub of the tire.

[0023] The above technical solution is adopted to facilitate the installation of components from the installation port to the cover body, and the flexible pad is used to close the installation port, making it more convenient to install the protective shell on the wheel hub and also convenient to carry the protective shell.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The air pressure in the tire is obtained in real time through the air pressure monitoring device, and the air pressure in the tire is controlled in real time. Real-time tire pressure monitoring and adjustment can better ensure the safe driving of the tire; 2. The central inflation and deflation system and the wireless tire pressure monitoring system are integrated on the tire through the shock-absorbing device and the protective shell, and the vibration caused by the high-speed operation of the tire can be avoided, which may cause damage to the central inflation and deflation system and the wireless tire pressure monitoring system, so as to better realize the real-time tire pressure monitoring during driving; 3. By setting the ballast liquid bag, the dynamic balance of the tire can be adjusted in real time to ensure a more stable operation of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an overall schematic diagram according to an embodiment of the present application; Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the protective housing; Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the weight liquid bag inside the protective shell; Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the Figure 3 structure; Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the first connecting member, the second connecting member, the elastic member and some surrounding parts; Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the Figure 5 structure; Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the flexible liquid bag, the first connecting member and the second connecting member; Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the liquid extraction pipe inside the protective housing; Fig. 9 It is a structural diagram of a part of the embodiment, mainly showing Figure 8 Schematic structure of local parts in; Fig.10 It is a structural schematic diagram of a part of the embodiment, mainly showing the position of the connecting groove; Fig.11 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the internal limiting member of the protective housing; Fig.12 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the limiter and some surrounding parts; Fig.13 A schematic structural diagram of a part of the embodiment, mainly showing the structure of the limiting groove and the flexible liquid bag; Fig.14 It is a structural diagram of a part of the embodiment, mainly showing Fig.13 Schematic diagram of the explosion structure; Fig.15 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the main pipeline and branch pipelines inside the protective housing; Fig.16 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the main pipeline, branch pipelines, hydraulic pump and some surrounding parts; Fig.17 It is a structural schematic diagram of a part of the embodiment, mainly showing the Fig.16 structure; Fig.18 It is a structural diagram of a part of the embodiment, mainly showing Figure 3 The cross-sectional structure of Fig.19 yes Fig.18 A magnified view of part A; Fig. 20 yes Fig.18 A magnified view of part B; Fig.21 A schematic diagram of a part of the embodiment, mainly showing Fig.11 The cross-sectional structure of Fig. 22 yes Fig.21 Enlarged view of part C; Fig.23 It is a structural diagram of a part of the embodiment, mainly showing Figure 8 The cross-sectional structure of Fig.24 yes Fig.23 Enlarged view of part D.

[0026] Reference numerals: 1. Protective shell; 11. Abutment plate; 12. Cover body; 13. Flexible pad; 14. Pipe groove; 15. Embedding groove; 16. Connection groove; 2. Pump body; 3. Delivery pipe; 4. Tires; 5. shock absorbing device; 51. flexible liquid bag; 52. first connecting member; 53. second connecting member; 531. protrusion; 55. elastic member; 56. limiting member; 561. limiting chamber; 6. Fastening piece; 61. Pipe shell; 62. Screw; 7. Weight liquid bag; 8. Quality adjustment part; 81. Control valve; 82. Hydraulic pump; 83. Main pipeline; 84. Branch pipeline; 85. Liquid extraction part; 86. Elastic cover; 861. Spring; 862. Moving plate; 87. Liquid extraction pipe; 88. Piston plate; 89. Displacement drive part; 9. filter element; 91. annular block; 92. elastic filter portion; 93. rigid portion. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-24 This application is described in further detail.

[0028] Example 1

[0029] A real-time tire pressure monitoring electric tire valve assembly includes: an air pressure monitoring device and an air injection device. The air pressure monitoring device is used to monitor the air pressure in the tire 4. The air injection device is used to inject air into the tire 4 when the air pressure in the tire 4 is lower than a preset value. Among them, the air pressure monitoring device is an air pressure sensor. The wireless tire pressure monitoring system in the prior art has tire pressure adjustment and detection functions, but there are limitations. The current tire pressure of the tire 4 can only be detected when in use. When in use, the tire 4 needs to be inflated, and the tire 4 valve is opened by air pressure, so that the tire 4 is connected to the airway of the wireless tire pressure monitoring system, and finally the current tire pressure value is read by the sensor. In addition, the tire 4 valve used in the current automobile tire 4 central inflation and deflation technology has the following disadvantages: the tire 4 valve is a pneumatic structure, the opening and closing of the valve body is limited by the pipeline diameter and air pressure, and the tire 4 tire pressure adjustment range is limited; the tire 4 valve has no sensor and cannot monitor the tire 4 air pressure and tire 4 temperature in real time.

[0030] The air pressure monitoring device is arranged in the tire 4 so as to monitor the air pressure of the tire 4 in real time, and a temperature sensor is additionally arranged to monitor the temperature of the tire 4 .

[0031] The gas injection device comprises: a protective shell 1, a pump body 2, a delivery pipe 3 and a control component.

[0032] The protective shell 1 is installed on the wheel hub of the tire 4, and the middle part of the protective shell 1 is used to form an installation chamber. The pump body 2 is arranged in the installation chamber, and the pump body 2 is an air pump. The delivery pipe 3 is used to form a first connection part connected to the output end of the pump body 2 and a second connection part connected to the airway interface of the tire 4. The delivery pipe 3 connects the output end of the pump body 2 with the airway interface of the tire 4, so that the pump body 2 injects air into the airway interface through the delivery pipe 3, thereby controlling the air pressure of the tire 4. Among them, an air injection cavity is formed on the second connection part, and the air injection cavity is connected to the airway interface. The pump body 2 adds air into the tire 4 through the air injection cavity and the airway interface. The control part is used to control the opening and closing state of the second connection part. The control part adopts one of a solenoid valve, an electric push rod and a micro motor. The electric push rod is provided with a piston at the output end of the electric push rod, and then the electric push rod is installed horizontally relative to the gas injection cavity. The electric push rod pushes the piston into the gas injection cavity to close the gas injection cavity, and the electric push rod pulls the piston outward to open the gas injection cavity. The micro motor is provided with a valve plate located in the gas injection cavity at the output end of the micro motor, and the micro motor drives the valve plate to rotate so that the gas injection channel is opened or closed. The protective shell 1 is provided in the middle of the wheel hub of the tire 4; the middle of the protective shell 1 forms a through hole for the input end of the pump body 2 to communicate with the external environment.

[0033] The ECU assembly is also included. The ECU assembly is a processor. The ECU assembly is connected to the control component signal. The ECU assembly realizes the control component's opening and closing control of the delivery pipe 3. The ECU assembly is also connected to the air pressure sensor and the temperature sensor signal, and the values ​​monitored by the air pressure sensor and the temperature sensor are obtained in real time. A display terminal is connected to the ECU assembly signal, and the values ​​monitored by the air pressure sensor and the temperature sensor are displayed through the display terminal. When the value monitored by the air pressure sensor is low, the tire 4 is inflated through the pump body 2.

[0034] The air pressure in the tire 4 can be detected in real time, and when the air pressure in the tire 4 is insufficient, air can be injected in time to ensure the balance of the air pressure in the tire 4, avoid the situation where the vehicle is easily out of control due to the imbalance of the air pressure in multiple tires 4, and better improve driving safety. By installing the protective shell 1 on the wheel hub of the tire 4, the air injection device can adjust the air pressure in the tire 4 in time during the driving process of the vehicle, thereby ensuring the balance of the air pressure in multiple tires 4 during the driving process of the vehicle.

[0035] In some schemes, a shock absorbing device 5 is provided between the pump body 2 and the protective shell 1. The shock absorbing device 5 is used to construct a shock absorbing connection between the pump body 2 and the protective shell 1. In this scheme, the shock absorbing device 5 adopts a flexible cushion. The purpose of the shock absorbing device 5 between the pump body 2 and the protective shell 1 is to reduce the shock between the pump body 2 and the wheel hub of the tire 4. On the one hand, it is to prevent the continuous high-speed rotation of the tire 4 when the vehicle is running, which is equivalent to the wheel hub of the tire 4 producing a slight vibration. The shock absorbing device 5 can prevent the vibration from being transmitted to the pump body 2 and protect the safety of the pump body 2. At the same time, it can also prevent the vibration generated by the tire 4 running on the uneven road surface from being isolated. Since the pump body 2 itself may vibrate when the pump body 2 is in operation, the setting of the shock absorbing device 5 prevents the vibration from being transmitted to the wheel hub of the tire 4, thereby avoiding the vibration causing the uneven distribution of the wheel hub mass of the tire 4 and causing dynamic balance problems, thereby better protecting the use safety of the pump body 2 and the normal rotation of the wheel hub of the tire 4.

[0036] In some embodiments, a tightening member 6 for connecting the delivery pipe 3 to the installation chamber is provided in the installation chamber. The delivery pipe 3 is a flexible hose. The tightening member 6 applies a tightening external force to the delivery pipe 3 so that the delivery pipe 3 forms a delivery cavity with a fixed shape. The tightening member 6 includes a pipeline shell 61 and a screw 62. A channel is formed in the pipeline shell 61, and the delivery pipe 3 passes through the channel. The screw 62 is threadedly connected to the pipeline shell 61, and the screw 62 is threadedly connected or rotationally connected to the protective shell 1, so that rotating the screw 62 can move the pipeline shell 61, and the movement of the pipeline shell 61 can bend one end of the delivery pipe 3 under force, so that the delivery pipe 3 is tightened. The tightening principle is to switch the delivery pipe 3 between two points from a straight line to a curve, so that the delivery pipe 3 between the two points becomes longer, and the delivery pipe 3 is tightened. The delivery pipe 3 is a flexible hose, so that during installation, the delivery pipe 3 can be better bent, so that it is easier and more labor-saving to realize the airway interface connection between the delivery pipe 3 and the tire 4. However, the use of a flexible hose will cause the delivery pipe 3 to shake easily as the tire 4 rotates. The shaking of the flexible hose will affect the dynamic balance of the tire 4, making it impossible for the tire 4 to run stably. Therefore, the tightening device 6 is used to tighten the delivery pipe 3 to prevent the delivery pipe 3 from shaking and better avoid dynamic balance problems.

[0037] In some schemes, the installation chamber is also provided with a plurality of weight liquid bags 7 and a mass adjustment member 8 that connects the plurality of weight liquid bags 7 to the flexible liquid bag 51. The mass adjustment member 8 is used to add the liquid in the flexible liquid bag 51 to one or more of the weight liquid bags 7 to make the mass distribution of the tire 4 uniform. The weight liquid bag 7 is fixed to the protective shell 1, and the mass adjustment member 8 includes a plurality of branch pipes 84 and a plurality of liquid pumping members 85. The liquid pumping member 85 is a liquid pump. The liquid pumping member 85 is arranged on the branch pipe 84. One end of the branch pipe 84 is connected to the flexible liquid bag 51, and the other end is connected to the weight liquid bag 7. The liquid pumping member 85 is used to add the liquid in the flexible liquid bag 51 to the weight liquid bag 7. The liquid in the flexible liquid bag 51 can be discharged outwardly and discharged into the weight liquid bag 7, thereby achieving the purpose of setting a dynamic balance block on the wheel hub of the tire 4.

[0038] In some solutions, a filter 9 for filtering out dust and impurities is provided at the through opening. By adopting this technical solution, the purpose is to prevent dust from entering the pump body 2 and affecting its service life.

[0039] In some embodiments, the protective shell 1 includes an abutment plate 11, a cover body 12 and a flexible pad 13; the abutment plate 11 is used to abut against the side of the wheel hub of the tire 4, and the cover body 12 is formed in the middle of the abutment plate 11; the cover body 12 is provided with a mounting opening, and the flexible pad 13 is used to block the mounting opening and abut against the wheel hub of the tire 4. It is convenient to install parts from the mounting opening to the cover body 12, and then the function of the flexible pad 13 is to close the mounting opening, so that it is more convenient to install the protective shell 1 on the wheel hub, and it is also convenient to carry the protective shell 1.

[0040] Example 2

[0041] The difference from Example 1 is that: The shock absorbing device 5 includes: a flexible liquid bag 51, a first connecting member 52 and a second connecting member 53. The flexible liquid bag 51 is filled with a fluid liquid, and water is preferably used as the fluid liquid. The first connecting member 52 and the second connecting member 53 are both fixed to the flexible liquid bag 51, and the flexible liquid bag 51 is located between the first connecting member 52 and the second connecting member 53. The first connecting member 52 forms a first pressure surface in contact with the flexible liquid bag 51, and the second connecting member 53 forms a second pressure surface in contact with the flexible liquid bag 51. The first pressure surface and the second pressure surface both cover the flexible liquid bag 51, so the first pressure surface and the second pressure surface can completely flatten the flexible liquid bag 51. Among them, the first connecting member 52 is connected to the protective shell 1, and the second connecting member 53 is used to install the pump body 2. In this embodiment, the first connecting member 52 and the second connecting member 53 are both plates. The shock absorbing device 5 also includes a locking member, which is a bolt in the present application, and the bolt sequentially passes through the second connecting member 53, the first connecting member 52 and the protective housing 1, and the bolt is threadedly connected to the protective housing 1. By rotating the bolt, the second connecting member 53 presses the flexible liquid bag 51, and the flexible liquid bag 51 is tightly pressed on the first connecting member 52. The method of using the flexible liquid bag 51 for shock absorption is to reduce the source of the earthquake through liquid, which has a better shock absorption effect than the design of the traditional flexible shock absorbing pad. In addition, since the flexible liquid bag 51 is filled with liquid, and the liquid has no specific shape, during the rotation of the wheel hub, the liquid in the flexible liquid bag 51 will bulge outward due to inertia in some cases. After the flexible liquid bag 51 bulges outward, the uniformity of mass distribution of the tire 4 will change, which is equivalent to a problem with the dynamic balance of the tire 4. In order to avoid this situation, the flexible liquid bag 51 is pressed down by the first connecting member 52 and the second connecting member 53, which can prevent the flexible liquid bag 51 from bulging outward, thereby better preventing the shape of the flexible liquid bag 51 from changing, and also better preventing the dynamic balance problem of the tire 4.

[0042] Example 3

[0043] The difference from Example 2 is that the locking member is replaced by an elastic member 55. The elastic member 55 is used to squeeze the first connecting member 52 and the second connecting member 53. In this embodiment, the elastic member 55 adopts a tension spring, a spring 861 or other elastic components, and other elastic components are such as elastic ropes or elastic blocks. The elastic member 55 of this embodiment preferably adopts a tension spring. One end of the elastic member 55 is connected to the second connecting member 53, and the other end is connected to the protective shell 1, so that the elastic member 55 applies a force to the second connecting member 53 to approach the first connecting member 52, so that the elastic member 55 makes the first connecting member 52 and the second connecting member 53 squeeze the flexible liquid bag 51. The purpose of using the elastic member 55 to provide the first connecting member 52 and the second connecting member 53 with the force to press the flexible liquid bag 51 is that the elastic member 55 can have the possibility of elastic deformation or deformation in most of the flexible liquid bags 51. If the first connecting member 52 and the second connecting member 53 are directly used to tightly press the flexible liquid bag 51, then after a long time of use, the flexible liquid bag 51 will undergo elastic deformation or deformation, which will cause the pressure of the first connecting member 52 and the second connecting member 53 pressing the flexible liquid bag 51 to be greatly reduced, or the flexible liquid bag 51 cannot be directly pressed. Therefore, the use of the elastic member 55 can increase the service life and better ensure that the flexible liquid bag 51 is pressed to prevent the flexible liquid bag 51 from bulging and causing dynamic balance problems.

[0044] Example 4

[0045] The difference from Example 3 is that the shock absorbing device 5 further includes: a limiting member 56 for forming a limiting chamber 561. The limiting member 56 is an annular body. The first connecting member 52, the second connecting member 53 and the flexible liquid bag 51 are all arranged in the limiting chamber 561, and the first connecting member 52, the second connecting member 53 and the flexible liquid bag 51 are all pressed against the inner wall surface of the limiting chamber 561. Elastic rubber pads are arranged on the sides of the first connecting member 52 and the second connecting member 53, and the first connecting member 52 and the second connecting member 53 are pressed against the inner wall surface of the limiting chamber 561 through the elastic rubber pads. The elastic member 55 is used to make the first connecting member 52 and the second connecting member 53 squeeze the flexible liquid bag 51 in the limiting chamber 561 to make the quality of the flexible liquid bag 51 uniform. Specifically, the elastic member 55 in this embodiment adopts a spring 861, which is arranged between the first connecting member 52 and the protective shell 1. The spring 861 applies a force to the first connecting member 52 to move closer to the second connecting member 53, that is, the first connecting member 52 is subjected to a force away from the protective shell 1. A fixing plate is arranged outside the limiting chamber 561, and the fixing plate is fixed to the limiting member 56. The fixing plate is used to contact the second connecting member 53, that is, the first connecting member 52 applies a force to the second connecting member 53 away from the protective shell 1 through the flexible liquid bag 51, and the second connecting member 53 abuts against the fixing plate, so that the first connecting member 52 and the second connecting member 53 press the flexible liquid bag 51. Preferably, in this embodiment, the limiting chamber 561 is a cylindrical chamber. By restricting the flexible liquid bag 51 in a limiting chamber 561, the flexible liquid bag 51 can be prevented from bulging in a direction perpendicular to the clamping force of the first connecting member 52 and the second connecting member 53, so that the flexible bag only bulges and deforms in the direction of the clamping force of the first connecting member 52 and the second connecting member 53, and the first connecting member 52 and the second connecting member 53 will compress the flexible liquid bag 51, thereby preventing the flexible liquid bag 51 from bulging, better preventing the problem of dynamic balance, and better ensuring the normal use of the tire 4.

[0046] Example 5

[0047] The difference from Example 4 is that the elastic member 55 adopts a tension spring, and the first connecting member 52 abuts against the protective shell 1. A protrusion 531 is formed on the second connecting member 53, and the protrusion 531 is inserted into the limiting chamber 561. One end of the tension spring is connected to the second connecting member 53, and the other end is connected to the protective shell 1. The tension spring applies a force to the second connecting member 53 to approach the protective shell 1. The protrusion 531 on the second connecting member 53 is fixed to the flexible liquid bag 51. In this way, the first connecting member 52 and the second connecting member 53 indirectly press the flexible liquid bag 51. Specifically, the flexible liquid bag 51 is indirectly pressed by the protrusion 531 on the second connecting member 53.

[0048] Example 6

[0049] The difference from Example 1 is: The mass adjustment member 8 includes: a control valve 81, a hydraulic pump 82, a main pipeline 83 and a branch pipeline 84. The main pipeline 83 is connected to the flexible liquid bag 51, and a plurality of branch pipelines 84 are provided. The plurality of branch pipelines 84 are used to connect the plurality of ballast liquid bags 7 to the main pipeline 83. The control valve 81 is provided on the branch pipeline 84, and the hydraulic pump 82 is provided on the main pipeline 83. Thus, the control valve 81 controls the opening and closing time of each branch pipeline 84, and the hydraulic pump 82 is always running, so that different amounts of liquid can be selectively added to different ballast liquid bags 7. The liquid installation requirements can be distributed to each ballast liquid bag 7. The design of the weighted liquid bag 7 can better solve the dynamic balance problem. At the same time, when the liquid in the flexible liquid bag 51 is discharged outward, due to the action of the elastic member 55, the first connecting member 52 and the second connecting member 53 can keep pressing the flexible liquid bag 51. Therefore, even if the flexible liquid bag 51 discharges the liquid outward, it will not bulge, so that the flexible liquid bag 51 will not affect the original dynamic balance of the wheel hub of the tire 4. Ultimately, it achieves both the beneficial effect of adjusting the dynamic balance of the wheel hub of the tire 4 and the beneficial effect of maintaining a stable shock absorption effect.

[0050] Specifically, a pipeline groove 14 and an embedding groove 15 are provided in the installation chamber; the pipeline groove 14 is used to accommodate the branch pipeline 84 and the main pipeline 83; the embedding groove 15 is used to accommodate the ballast fluid bag 7. After the main pipeline 83 and the branch pipeline 84 are embedded in the pipeline groove 14, a pressing plate is provided above the pipeline groove 14 to close the pipeline groove 14, thereby fixing the main pipeline 83 and the branch pipeline 84 with the pipeline groove 14 to prevent the branch pipeline 84 and the main pipeline 83 from shaking during the rotation of the tire 4.

[0051] Example 7

[0052] The difference from Example 6 is: An elastic cover 86 is provided on the embedding groove 15, and the elastic cover 86 is used to form an elastic displacement plane abutting against the balancing fluid bag 7. The elastic cover 86 includes a cover plate and an elastic rubber pad. The elastic rubber pad is fixed to the cover plate, and the elastic rubber pad is used to form an elastic displacement plane. The cover plate is fixed to the protective shell 1, and the elastic rubber pad is located in the embedding groove 15, and the elastic rubber pad is tightly abutted against the balancing fluid bag 7. The shape of the embedding groove 15 is preferably a cylindrical groove. When liquid is added to the balancing fluid bag 7, the balancing fluid bag 7 expands, which will apply external force to the elastic rubber pad. Conversely, the elastic rubber pad applies pressure to the balancing fluid bag 7, so that the balancing fluid bag 7 is pressed like the flexible fluid bag 51, thereby avoiding the situation where bulging affects the dynamic balance of the wheel hub of the tire 4, and better ensuring the smooth operation of the tire 4.

[0053] Example 8

[0054] The difference with Example 7 is: The elastic rubber pad is replaced with a spring 861 and a moving plate 862. One end of the spring 861 is fixed to the cover plate, and the other end of the spring 861 is fixed to the moving plate 862. The moving plate 862 is pressed against the embedding groove 15. The moving plate 862 is used to form an elastic plane. By means of the spring 861 and the moving plate 862, the moving plate 862 has a larger displacement, so that more liquid can be added to the weight liquid bag 7 and the weight liquid bag 7 can be pressed.

[0055] Example 9

[0056] The difference from Example 1 is: The weighted liquid bag 7 is replaced with a liquid extraction pipe 87. The mass adjustment member 8 includes a plurality of piston plates 88 and a plurality of displacement drive components 89. The liquid extraction pipe 87 is fixedly arranged in the protective shell 1. The piston plate 88 is slidably connected to the inner wall surface of the liquid extraction pipe 87. The displacement drive component 89 adopts one of an electric push rod, a cylinder and a hydraulic cylinder, preferably an electric push rod. The mass adjustment member 8 includes: a main pipeline 83 and a branch pipeline 84. The main pipeline 83 is connected to the flexible liquid bag 51. A plurality of branch pipelines 84 are provided. The plurality of branch pipelines 84 are used to connect the plurality of liquid extraction pipes 87 to the main pipeline 83. A pipeline groove 14 and a connecting groove 16 are provided in the protective shell 1. The pipeline groove 14 is used to accommodate the branch pipeline 84 and the main pipeline 83. The liquid extraction pipe 87 is formed with a liquid extraction port, which is provided in the connecting groove 16. The branch pipeline 84 is partially located in the connecting groove 16, and the branch pipeline 84 is connected to the liquid extraction port. The starting position of the piston plate 88 is in contact with the inner wall of the liquid collection tube 87 at the liquid collection port, so that when the displacement driving component 89 drives the piston plate 88 to move, the liquid in the liquid collection tube 87 is filled with liquid to prevent water from shaking in the liquid collection tube 87, thereby better ensuring uniform mass distribution on the tire 4 and better avoiding dynamic balance problems.

[0057] Example 10

[0058] The difference from Example 1 is: The protective housing 1 is provided with a mounting groove at the opening, and the filter is arranged in the mounting groove. An annular block 91 is provided at the opening, and the annular block 91 is threadedly connected with the mounting groove, so that the annular block 91 presses the filter to fix the filter, and realizes a detachable connection of the filter.

[0059] Specifically, the filter element includes a rigid part 93 and an elastic filter part 92; the rigid part 93 is an annular plate, the rigid part 93 is arranged in the mounting groove, and the rigid part 93 is pressed in the mounting groove by the annular block 91, so that the filter element is fixed to the protective shell 1. The elastic filter part 92 is a circular plate made of elastic rubber material, and a plurality of filter holes are provided on the elastic filter part 92. The elastic filter part 92 is fixed to the rigid part 93. When the pump body 2 injects external air into the tire 4 along the port and the delivery pipe 3, the elastic filter part 92 will bulge and deform in the direction away from the annular block 91, and when the pump body 2 stops injecting air into the tire 4, the elastic filter part 92 will return to its original state, so that when the elastic filter part 92 returns to its original state, the dust on the elastic filter part 92 will be ejected outward, thereby realizing self-cleaning of the dust.

[0060] The size of the through opening is similar to that of the elastic filter portion 92 , so that the elastic filter portion 92 can be convexly deformed in a direction away from the annular block 91 without being interfered.

[0061] In some embodiments, the method of obtaining whether the tire 4 has a dynamic balance problem is to feel the vibration during driving. If the driver feels that the steering wheel vibrates significantly when driving at high speed, the liquid in the flexible liquid bag 51 is added to the weight liquid bag 7. However, the position where the dynamic balance problem exists cannot be directly obtained. Therefore, in actual application, multiple weight liquid bags 7 need to be added with liquid in sequence for testing until the steering wheel vibration slows down or disappears. In other schemes, a high-speed camera can also be set on the vehicle to monitor the operation of the tire 4, and the high-speed camera can detect abnormal rotation of the tire 4, so that the dynamic balance problem of the tire 4 can be found.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A real-time tire pressure monitoring electric tire valve assembly, characterized in that: include: an air pressure monitoring device for monitoring the air pressure in the tire; An air injection device, used for injecting air into the tire when the air pressure in the tire is lower than a preset value; The gas injection device comprises: A protective housing mounted on a hub of the tire and used to form a mounting chamber; A pump body member, arranged in the installation chamber; A delivery pipe, used to form a first connection portion connected to the output end of the pump body and a second connection portion communicated with the airway interface of the tire; A control member, used for controlling the opening and closing state of the second connecting portion; Wherein, the protective shell is arranged in the middle of the wheel hub of the tire; and a through opening is formed in the middle of the protective shell for the input end of the pump body to communicate with the external environment.

2. The electric tire valve assembly for real-time tire pressure monitoring according to claim 1, characterized in that: A shock absorbing device is arranged between the pump body and the protective shell; The shock absorbing device is used to establish a shock absorbing connection between the pump body and the protective shell.

3. The electric tire valve assembly for real-time tire pressure monitoring according to claim 2, characterized in that: The shock absorbing device comprises: a flexible fluid bag, a first connecting piece, a second connecting piece and an elastic piece; The flexible liquid bag is filled with fluid liquid; The first connecting member and the second connecting member are both fixed to the flexible fluid bag, and the flexible fluid bag is located between the first connecting member and the second connecting member; The elastic member is used to make the first connecting member and the second connecting member squeeze the elastic member; The first connecting member forms a first pressing surface in contact with the flexible fluid bag, the second connecting member forms a second pressing surface in contact with the flexible fluid bag, and the first pressing surface and the second pressing surface both cover the flexible fluid bag; The first connecting member is connected to the protective shell, and the second connecting member is used to install the pump body.

4. The electric tire valve assembly for real-time tire pressure monitoring according to claim 3, characterized in that: The shock absorbing device further comprises: a limiting member for forming a limiting chamber; the first connecting member and the flexible liquid bag are both arranged in the limiting chamber; The flexible liquid bag is pressed against the inner wall surface of the limiting chamber; the elastic member is used to enable the first connecting member and the second connecting member to squeeze the flexible liquid bag in the limiting chamber to make the mass of the flexible liquid bag uniform.

5. The electric tire valve assembly for real-time tire pressure monitoring according to claim 1, characterized in that: A tightening member for connecting the delivery pipe to the installation chamber is provided in the installation chamber; the delivery pipe is a flexible hose; The tightening member applies a tightening external force to the delivery tube so that the delivery tube forms a delivery cavity with a fixed shape.

6. A real-time tire pressure monitoring electric tire valve assembly according to claim 3 or 4, characterized in that: The installation chamber is also provided with a plurality of weighted liquid bags and a mass adjusting member that connects the plurality of weighted liquid bags with the flexible liquid bag; The mass adjusting member is used to add the liquid in the flexible liquid bag into one or more weighted liquid bags to make the tire mass evenly distributed.

7. The electric tire valve assembly for real-time tire pressure monitoring according to claim 6, characterized in that: The mass adjustment components include: a control valve, a hydraulic pump, a main pipeline and a branch pipeline; The main pipeline is connected to the flexible liquid bag, and a plurality of branch pipelines are provided, and the plurality of branch pipelines are used to connect the plurality of weighted liquid bags to the main pipeline; The control valve is arranged on the branch pipeline; and the hydraulic pump is arranged on the main pipeline.

8. The electric tire valve assembly for real-time tire pressure monitoring according to claim 7, characterized in that: A pipeline groove and an embedding groove are provided in the installation chamber; the pipeline groove is used to accommodate the branch pipeline and the main pipeline; the embedding groove is used to accommodate the balancing weight liquid bag; An elastic cover is arranged on the embedding groove, and the elastic cover is used to form an elastic displacement plane abutting against the weight liquid bag.

9. The electric tire valve assembly for real-time tire pressure monitoring according to claim 1, characterized in that: A filter element for filtering out dust and impurities is arranged at the through opening.

10. The electric tire valve assembly for real-time tire pressure monitoring according to claim 1, characterized in that: The protective shell includes an abutment plate, a cover body and a flexible pad; The abutment plate is used to abut against the side of the wheel hub of the tire, and the cover body is formed in the middle of the abutment plate; a mounting opening is opened on the cover body, and the flexible pad is used to block the mounting opening and abut against the wheel hub of the tire.

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