Tire inflation and deflation system and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a tire inflation and deflation system and a vehicle. The tire inflation and deflation system comprises an air source assembly, an inflation pipeline and a control module. The air source assembly is arranged on a chassis of a vehicle. The inflation pipeline is connected with the air source assembly and an air valve of a tire arranged on the hub. An inflation electromagnetic valve and a deflation electromagnetic valve are arranged on the inflation pipeline; the control module is electrically connected with the inflation electromagnetic valve and the deflation electromagnetic valve and used for controlling the inflation electromagnetic valve to open or cut off communication between the air source assembly and the inflation pipeline and controlling the deflation electromagnetic valve to exhaust air in the tire through the inflation pipeline. According to the utility model, the air source assembly is arranged on the frame, the inflating pipeline is connected with the tire valve and the air source assembly, and the control module is used for controlling the operation of the inflating electromagnetic valve and the deflating electromagnetic valve, so that the tire can be inflated or deflated, and the efficiency of inflating and deflating the tire is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a tire inflation and deflation system and a vehicle. Background Art

[0002] Tire pressure is one of the safety factors in the driving process of a vehicle. The tire pressure may be too high or too low due to different road conditions, different ambient temperatures, and the tire's own sealing reasons. If the tire pressure is not adjusted in time according to the actual situation, it may cause a tire blowout or insufficient tire pressure, affecting the safety of the vehicle.

[0003] In the past, tires could be manually inflated and deflated using an inflation and deflation device to avoid potential safety hazards during driving. However, manual inflation and deflation are inefficient, and due to the location of the tire valve, for example, when a vehicle is provided with an inner tire and an outer tire, the valve of the inner tire is easily blocked by the outer tire, and the inflation and deflation device is inconvenient to operate the tire. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0005] To this end, the utility model provides a tire inflation and deflation system, which can improve the inflation and deflation efficiency of the tire.

[0006] The utility model also provides a vehicle comprising the tire inflation and deflation system.

[0007] A tire inflation and deflation system according to an embodiment of the first aspect of the utility model comprises:

[0008] An air source assembly is provided on the chassis of the vehicle;

[0009] The inflation pipeline is connected to the air source assembly and the valve of the tire arranged on the wheel hub; the inflation pipeline is provided with an inflation solenoid valve and a deflation solenoid valve;

[0010] The control module is electrically connected to the inflation solenoid valve and the deflation solenoid valve, and is used to control the inflation solenoid valve to open or cut off the connection between the air source component and the inflation pipeline, and to control the deflation solenoid valve to discharge the gas in the tire through the inflation pipeline.

[0011] Optionally, the inflation circuit comprises:

[0012] A first air passage is located in the front axle connecting shaft or the rear axle connecting shaft of the vehicle, and the first air passage is communicated with the air outlet of the air source component;

[0013] The second air passage is located at the outer side of the wheel hub of the vehicle; the second air passage is used to connect the valve with the first air passage.

[0014] Optionally, the first air passage is connected to the second air passage through a pneumatic slip ring, and the pneumatic slip ring is arranged on the outer side of the spoke of the hub.

[0015] Optionally, the tire includes an inner tire and an outer tire mounted on the inner tire, the inner tire is provided with a first air valve, and the outer tire is provided with a second air valve; the second air duct includes a first air filling tube and a second air filling tube connected to the pneumatic slip ring, the first air filling tube is connected to the first valve, and the second air filling tube is connected to the second valve.

[0016] Optionally, the first inflation tube and the second inflation tube are connected to the pneumatic slip ring via a three-way diverter valve.

[0017] Optionally, the air source component is an electric air pump; the control module is also electrically connected to the electric air pump, and the control module is also used to control the opening or closing of the electric air pump.

[0018] Optionally, the system further comprises:

[0019] A tire pressure sensor, electrically connected to the control module, for monitoring tire pressure information;

[0020] When the tire pressure information is less than a first preset threshold, the control module is further used to control the electric air pump to start, and control the air charging solenoid valve to open the connection between the air source component and the air charging pipeline; or

[0021] When the tire inflation and deflation system inflates the tire and the tire pressure information is greater than a second preset threshold, the control module is also used to control the electric air pump to shut down and / or control the inflation solenoid valve to cut off the connection between the air source assembly and the inflation pipeline.

[0022] Optionally, when the tire pressure information is greater than a third preset threshold, the control module is further configured to control the deflation solenoid valve to open, and the deflation solenoid valve is closed until the tire pressure information reaches the third preset threshold.

[0023] Optionally, the control module is located in a cab of the vehicle.

[0024] A vehicle according to an embodiment of the second aspect of the utility model comprises the tire inflation and deflation system of the first aspect or its various implementations.

[0025] One of the above technical solutions has at least the following advantages or beneficial effects:

[0026] For a tire inflation and deflation system of an embodiment of the utility model, an inflation pipeline is connected with an air source component and a valve of a tire arranged on a wheel hub; when the tire needs to be inflated, the control module is used to control the inflation solenoid valve to open the connection between the air source component and the inflation pipeline, so that the air source component can inflate the tire; when the tire needs to be deflated, the control module is used to control the deflation solenoid valve to discharge the gas in the tire through the inflation pipeline, so that the air source component can deflate the tire. The utility model can complete the inflation or deflation of the tire by placing the air source component on the frame, connecting the inflation pipeline with the tire valve and the air source component, and then using the control module to control the operation of the inflation solenoid valve and the deflation solenoid valve, thereby improving the efficiency of inflation and deflation of the tire.

[0027] The vehicle provided by the embodiment of the utility model is provided with the above tire inflation and deflation system. Since the tire inflation and deflation system has the above technical effects, the vehicle provided with the tire inflation and deflation system should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic structural diagram of a tire inflation and deflation system according to an embodiment of the utility model is shown;

[0029] Figure 2 The schematic diagram shows a tire inflation and deflation system according to an embodiment of the utility model being assembled on a vehicle.

[0030] [Description of Reference Numerals]

[0031] 1. Inflatable pipeline, 101, first airway, 102, second airway, 1021, first inflatable tube, 1022, second inflatable tube;

[0032] 2. Tire, 201, inner tire, 202, outer tire;

[0033] 3. Valve, 301, first valve, 302, second valve;

[0034] 4. Inflatable solenoid valve;

[0035] 5. Front axle connecting shaft;

[0036] 6. Wheel hub;

[0037] 7. Pneumatic slip ring;

[0038] 8. Three-way diverter valve;

[0039] 9. Air source assembly. DETAILED DESCRIPTION

[0040] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0041] A mining dump truck is a type of dump truck used in open-pit mines to complete rock and earth stripping and ore transportation tasks. It has a heavy load. The middle and rear axles of a mining dump truck generally use two wheel rim spokes mounted oppositely on the wheel drum axle head to bear the weight of the mining dump truck.

[0042] When the tires of a mining dump truck are inflated and deflated, since the air valve of the inner tire is blocked by the outer tire, the outer tire needs to be removed from the inner tire before the inner tire is inflated and deflated, resulting in low inflation and deflation efficiency of the tires.

[0043] In order to solve at least one of the technical problems existing in the prior art or related technology, the utility model provides a tire inflation and deflation system, which is connected to the air source component and the valve of the tire arranged on the wheel hub through the inflation pipeline; when the tire needs to be inflated, the control module is used to control the inflation solenoid valve to open the connection between the air source component and the inflation pipeline, so that the air source component can inflate the tire; when the tire needs to be deflated, the control module is used to control the deflation solenoid valve to discharge the gas in the tire through the inflation pipeline, so that the air source component can deflate the tire. It can be seen that this embodiment can complete the inflation or deflation of the tire by placing the air source component on the frame, connecting the inflation pipeline with the tire valve and the air source component, and then using the control module to control the operation of the inflation solenoid valve and the deflation solenoid valve, thereby improving the efficiency of tire inflation and deflation.

[0044] The following describes a tire inflation and deflation system and a vehicle according to some embodiments of the utility model with reference to the accompanying drawings.

[0045] See also Figure 1 and Figure 2 A tire inflation and deflation system according to an embodiment of the utility model is applied to a vehicle. The tire inflation and deflation system comprises an air source assembly 9, an inflation pipeline 1 and a control module. The air source assembly 9 is arranged on the chassis of the vehicle; the inflation pipeline 1 is connected with the air source assembly 9 and a valve 3 of a tire 2 arranged on a wheel hub 6; an inflation solenoid valve 4 and a deflation solenoid valve (not shown in the figure) are arranged on the inflation pipeline 1; the control module is electrically connected with the inflation solenoid valve 4 and the deflation solenoid valve, and is used to control the inflation solenoid valve 4 to open or cut off the connection between the air source assembly 9 and the inflation pipeline 1, and to control the deflation solenoid valve to discharge the gas in the tire 2 through the inflation pipeline 1.

[0046] Here, both the inflation solenoid valve 4 and the deflation solenoid valve may be arranged at one end of the inflation pipeline 1 close to the air source assembly 9 .

[0047] It should be noted that when the control module controls the inflation solenoid valve 4 to open the connection between the air source component 9 and the inflation pipeline 1, the deflation solenoid valve remains closed; when the control module controls the deflation solenoid valve to discharge the gas in the tire 2 through the inflation pipeline 1, the control module controls the inflation solenoid valve 4 to cut off the connection between the air source component 9 and the inflation pipeline 1.

[0048] In this embodiment, the inflation pipeline 1 is connected with the air source assembly 9 and the valve 3 of the tire 2 arranged on the wheel hub 6; when the tire 2 needs to be inflated, the control module is used to control the inflation solenoid valve 4 to open the connection between the air source assembly 9 and the inflation pipeline 1, so that the inflation of the tire 2 by the air source assembly 9 can be realized; when the tire 2 needs to be deflated, the control module is used to control the deflation solenoid valve to discharge the gas in the tire 2 through the inflation pipeline 1, so that the deflation of the tire 2 by the air source assembly 9 can be realized. It can be seen that in this embodiment, the air source assembly 9 is placed on the frame, and the inflation pipeline 1 is connected with the valve 3 of the tire 2 and the air source assembly 9. Therefore, the tire inflation and deflation system provided by the utility model can complete the inflation or deflation of the tire 2 by controlling the operation of the inflation solenoid valve 4 and the deflation solenoid valve by the control module without disassembling the outer tire 202, thereby improving the efficiency of inflation and deflation of the tire 2.

[0049] In some possible embodiments, the inflation circuit 1 includes a first air duct 101 and a second air duct 102, the first air duct 101 is located in the front axle connecting shaft 5 or the rear axle connecting shaft of the vehicle, and the first air duct 101 is connected to the air outlet of the air source component 9; the second air duct 102 is located on the outside of the wheel hub 6 of the vehicle; the second air duct 102 is used to connect the valve 3 with the first air duct 101.

[0050] Here, by locating the first air duct 101 inside the front axle connecting shaft 5 or the rear axle connecting shaft of the vehicle, the problem of wear caused by the first air duct 101 being exposed to the outside can be avoided. The second air duct 102 is then located on the outside of the wheel hub 6 of the vehicle, which can facilitate the connection between the second air duct 102 and the valve 3 and improve the assembly efficiency of the assembler.

[0051] In some possible embodiments, the first air passage 101 is connected to the second air passage 102 via a pneumatic slip ring 7 , and the pneumatic slip ring 7 is disposed on the outer side of the spoke of the hub 6 .

[0052] Here, the pneumatic slip ring 7 may include a relatively rotatable static slip ring and a dynamic slip ring, wherein an air supply cavity is provided in the static slip ring, and an air flow channel connected to the air supply cavity and the second air channel 102 is provided in the dynamic slip ring; the static slip ring is connected to the first air channel 101, and the pneumatic slip ring 7 may be coaxially arranged with the front axle connecting shaft 5 or the rear axle connecting shaft. The pneumatic slip ring 7 may be a Senring slip ring.

[0053] In some possible embodiments, the tire 2 includes an inner tire 201 and an outer tire 202 mounted on the inner tire 201, the inner tire 201 is provided with a first valve 301, and the outer tire 202 is provided with a second valve 302; the second air duct 102 includes a first inflation tube 1021 and a second inflation tube 1022 connected to the pneumatic slip ring 7, the first inflation tube 1021 is connected to the first valve 301, and the second inflation tube 1022 is connected to the second valve 302.

[0054] It should be noted that the first valve 301 here may be located on the outer side of the inner tire 201 , and the second valve 302 may be located on the outer side of the inner tire 201 .

[0055] In this embodiment, by connecting the first inflation tube 1021 with the first valve 301, and connecting the second inflation tube 1022 with the second valve 302, the gas transported from the first air duct 101 can enter the inner tire 201 and the outer tire 202 through the pneumatic slip ring 7 through the first inflation tube 1021 and the second inflation tube 1022 respectively, thereby achieving simultaneous inflation of the inner tire 201 and the outer tire 202; in addition, by directly connecting the first inflation tube 1021 with the first valve 301, the traditional operation of disassembling the outer tire 202 for inflation of the inner tire 201 can be avoided, thereby improving the inflation efficiency of the tire 2.

[0056] In some possible embodiments, the first inflation tube 1021 and the second inflation tube 1022 are connected to the pneumatic slip ring 7 via a three-way diverter valve 8 .

[0057] Here, the air inlet of the three-way diverter valve 8 is connected to the pneumatic slip ring 7, one air outlet of the three-way diverter valve 8 is connected to one end of the first inflation tube 1021 away from the first valve 301, and the other air outlet of the three-way diverter valve 8 is connected to one end of the second inflation tube 1022 away from the second valve 302.

[0058] In some possible embodiments, the air source component 9 is an electric air pump; the control module is also electrically connected to the electric air pump, and the control module is also used to control the opening or closing of the electric air pump.

[0059] It should be noted that the electric air pump here can be electrically connected to the vehicle's 24V power supply.

[0060] In this embodiment, by selecting the air source component 9 as an electric air pump, the electric air pump can be controlled to start or stop inflation by operating the control module, so that the electric air pump can control the inflation of the tire 2, making it convenient for the driver to inflate the tire 2.

[0061] In some possible embodiments, the system also includes a tire pressure sensor, which is electrically connected to the control module and is used to monitor the tire pressure information of the tire 2; when the tire pressure information is less than a first preset threshold, the control module is also used to control the electric air pump to start, and control the inflation solenoid valve 4 to open the connection between the air source assembly 9 and the inflation pipeline 1.

[0062] Since the tire pressure information of tire 2 can be monitored in real time by setting a tire pressure sensor, it is possible to determine whether tire 2 needs to be inflated by monitoring the tire pressure information of tire 2. Here, the real-time tire pressure information monitored by the tire pressure sensor is compared with the first preset threshold value by the control module, and when the tire pressure information is greater than the first preset threshold value, it is determined that tire 2 needs to be inflated. At this time, the control module controls the electric air pump to start, and controls the inflation solenoid valve 4 to open the connection between the air source component 9 and the inflation pipeline 1, so that the gas output by the electric air pump enters the tire 2, thereby inflating the tire 2.

[0063] Correspondingly, when the tire inflation and deflation system inflates the tire 2 and the tire pressure information is greater than a second preset threshold, the control module is also used to control the electric air pump to shut down, and / or control the inflation solenoid valve 4 to cut off the connection between the air source assembly 9 and the inflation pipeline 1.

[0064] When the tire inflation and deflation system inflates the tire 2, in order to avoid the situation where too much gas is filled into the tire 2 and the tire pressure of the tire 2 is too high, the control module monitors the real-time tire pressure information of the tire pressure sensor and compares it with the second preset threshold value. When the tire pressure information is greater than the second preset threshold value, the control module determines that the tire 2 has been filled with gas. At this time, the control module controls the electric air pump to turn off, and / or controls the inflation solenoid valve 4 to cut off the connection between the air source assembly 9 and the inflation pipeline 1, so as to stop the gas output by the electric air pump from entering the tire 2.

[0065] In some possible embodiments, when the tire pressure information is greater than a third preset threshold, the control module is further configured to control the deflation solenoid valve to open, and the deflation solenoid valve is closed until the tire pressure information reaches the third preset threshold.

[0066] Here, when the tire pressure sensor detects that the tire pressure information of tire 2 is greater than the third preset threshold, it can be determined that the tire pressure in tire 2 is too high and needs to be deflated. Therefore, the control module compares the real-time tire pressure information monitored by the tire pressure sensor with the third preset threshold, and when the tire pressure information is greater than the third preset threshold, the control module controls the deflation solenoid valve to open, so that the gas in tire 2 is discharged from the deflation solenoid valve through the inflation line 1 to reduce the tire pressure of tire 2, until the tire pressure information of tire 2 is the third preset threshold, and the control module controls the deflation solenoid valve to close. In this process, the inflation solenoid valve 4 remains closed.

[0067] In some possible embodiments, the control module is located in a cab of the vehicle.

[0068] Here, by arranging the control module in the cab, the driver can operate the control module in the cab to control the inflation solenoid valve 4 to open or cut off the connection between the air source assembly 9 and the inflation pipeline 1, and control the deflation solenoid valve to discharge the gas in the tire 2 through the inflation pipeline 1. The control module is connected to a button, and the driver can operate the control module by operating the button.

[0069] A vehicle according to an embodiment of the present invention comprises a tire inflation and deflation system as in any of the above embodiments.

[0070] Here, the vehicle may be a mining dump truck.

[0071] Since the vehicle of this embodiment includes any tire inflation and deflation system in the first aspect described above, it has the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0072] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0073] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0075] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0076] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A tire inflation and deflation system, characterized in that: include: An air source assembly is provided on the chassis of the vehicle; An air-inflating pipeline is connected to the air source assembly and the air valve of the tire arranged on the wheel hub; an air-inflating solenoid valve and an air-deflation solenoid valve are arranged on the air-inflating pipeline; The control module is electrically connected to the inflation solenoid valve and the deflation solenoid valve, and is used to control the inflation solenoid valve to open or cut off the connection between the air source assembly and the inflation pipeline, and to control the deflation solenoid valve to discharge the gas in the tire through the inflation pipeline.

2. The tire inflation and deflation system according to claim 1, characterized in that: The inflation pipeline comprises: A first air passage is located in the front axle connecting shaft or the rear axle connecting shaft of the vehicle, and the first air passage is communicated with the air outlet of the air source component; The second air passage is located at the outer side of the wheel hub of the vehicle; the second air passage is used to connect the valve with the first air passage.

3. The tire inflation and deflation system according to claim 2, characterized in that: The first air passage is communicated with the second air passage through a pneumatic slip ring, and the pneumatic slip ring is arranged outside the spoke of the hub.

4. The tire inflation and deflation system according to claim 3, characterized in that: The tire includes an inner tire and an outer tire mounted on the inner tire, the inner tire is provided with a first air valve, and the outer tire is provided with a second air valve; the second air channel includes a first air filling tube and a second air filling tube connected to the pneumatic slip ring, the first air filling tube is connected to the first valve, and the second air filling tube is connected to the second valve.

5. The tire inflation and deflation system according to claim 4, characterized in that: The first inflation pipe and the second inflation pipe are connected to the pneumatic slip ring through a three-way diverter valve.

6. The tire inflation and deflation system according to claim 1, characterized in that: The air source component is an electric air pump; the control module is also electrically connected to the electric air pump, and the control module is also used to control the opening or closing of the electric air pump.

7. The tire inflation and deflation system according to claim 6, characterized in that: The system further comprises: A tire pressure sensor, electrically connected to the control module, for monitoring tire pressure information of the tire; When the tire pressure information is less than a first preset threshold, the control module is further used to control the electric air pump to start, and control the air charging solenoid valve to open the connection between the air source assembly and the air charging pipeline; or When the tire inflation and deflation system inflates the tire and the tire pressure information is greater than a second preset threshold, the control module is also used to control the electric air pump to shut down, and / or control the inflation solenoid valve to cut off the connection between the air source assembly and the inflation pipeline.

8. The tire inflation and deflation system according to claim 7, characterized in that: When the tire pressure information is greater than a third preset threshold, the control module is further configured to control the deflation solenoid valve to open, and to close the deflation solenoid valve until the tire pressure information reaches the third preset threshold.

9. The tire inflation and deflation system according to any one of claims 1 to 8, characterized in that: The control module is located in a cab of the vehicle.

10. A vehicle, characterized in that: The tire inflation and deflation system comprises the tire inflation and deflation system according to any one of claims 1 to 9.

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