Semi-automatic tire inflation and deflation device

Abstract

The utility model relates to a semi-automatic tire inflation and deflation device, and relates to the technical field of tires, the semi-automatic tire inflation and deflation device comprises a main inflation valve and a bridge valve, one end of the main inflation valve is an air inlet, the other end of the main inflation valve is connected with the bridge valve, the bridge valve is provided with three ports, and the three ports are respectively connected with the main inflation valve, a tire and an external environment; when the main charging valve is powered on and the bridge valve is powered off, the main charging valve is communicated with the tire through the bridge valve, and a channel for communicating the bridge valve with the external environment is closed; when the main charging valve is powered off and the bridge valve is powered on, the tire is communicated with the external environment through the bridge valve, and a communication channel of the bridge valve and the main charging valve is closed. The tire can be inflated and deflated only by controlling the main inflation valve and the bridge valve to be powered on or powered off, operation is easy, too many parts do not need to be installed, and reliability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, in particular to a semi-automatic tire inflation and deflation device. Background Art

[0002] The tire pressure of a car is one of the safety factors during vehicle driving. When the load of the car changes, the tire pressure will also change accordingly. If the tire pressure is not adjusted in time according to the actual load, it will cause a tire blowout or insufficient tire pressure, affecting the safety of the vehicle.

[0003] At present, various types of vehicles are equipped with central inflation and deflation systems, which are composed of four parts: a control panel assembly, a controller assembly, a pressure-maintaining valve assembly and a tire valve assembly. The central inflation and deflation system is mainly installed on some special-purpose wheeled vehicles. When the vehicle is driving or parked, the driver can inflate, deflate or measure the pressure of the vehicle tires through simple operations in the cab to adjust the tire pressure, thereby improving the ability of wheeled vehicles to pass through complex roads such as deserts, mud or ice and snow.

[0004] However, when the central inflation and deflation system inflates or deflates the vehicle, the control panel usually sends instructions. After the controller assembly receives the instructions, it uses the tire valve assembly to inflate and deflate the tire. This operation requires a large number of parts and has poor reliability. Utility Model Content

[0005] In view of the defects existing in the prior art, the present application provides a semi-automatic tire inflation and deflation device, which can solve the problems of a large number of parts and poor reliability required for the tire inflation and deflation device in the prior art.

[0006] In a first aspect, an embodiment of the present application provides a semi-automatic tire inflation and deflation device, comprising: a main inflation valve and a bridge valve, wherein one end of the main inflation valve is an air inlet, and the other end is connected to the bridge valve, and the bridge valve is provided with three ports, and the three ports are respectively connected to the main inflation valve, the tire, and the external environment;

[0007] When the main filling valve is powered on and the bridge valve is powered off, the main filling valve is connected to the tire through the bridge valve, and the channel connecting the bridge valve and the external environment is closed;

[0008] When the main charging valve is powered off and the bridge valve is powered on, the tire is connected to the external environment through the bridge valve, and the channel connecting the bridge valve and the main charging valve is closed.

[0009] In the embodiment of the present application, the tire can be inflated and deflated by controlling the power on or off of the main filling valve and the bridge valve. The operation is simple, there is no need to install too many parts, and reliability is guaranteed.

[0010] In combination with the first aspect, in one embodiment, it further includes an air cylinder, which is located on a rim for clamping the tire, and the air cylinder is connected to the air inlet via an air intake joint.

[0011] In the embodiment of the present application, the gas source can be provided to the gas charging and discharging device through a gas cylinder, and the gas cylinder is connected to the gas inlet through an air inlet joint to prevent gas leakage during the inflation process.

[0012] In combination with the first aspect, in one implementation, the port of the bridge valve connected to the tire is connected to the tire via an air outlet joint.

[0013] In the embodiment of the present application, an air outlet joint is provided to prevent gas leakage during the inflation process of the tire.

[0014] In combination with the first aspect, in one implementation, the port of the bridge valve connected to the main filling valve is connected to the main filling valve via a connecting joint.

[0015] In the embodiment of the present application, a connecting joint is provided to prevent leakage of gas in the main filling valve during the process of flowing into the bridge valve.

[0016] In combination with the first aspect, in one embodiment, the main filling valve is a normally closed two-position two-way solenoid valve. When the main filling valve is energized, the first valve chamber of the main filling valve opens, and the channel connecting the main filling valve and the bridge valve opens.

[0017] In the embodiment of the present application, the opening condition of the first valve chamber of the main filling valve is controlled by turning the power on or off to control the opening condition of the channel connecting the main filling valve and the bridge valve.

[0018] In combination with the first aspect, in one embodiment, the bridge valve is a normally closed two-position three-way solenoid valve. When the bridge valve is energized, the second valve chamber of the bridge valve opens, the channel connecting the bridge valve and the external environment opens, and the channel connecting the bridge valve and the main filling valve is closed.

[0019] In the embodiment of the present application, the opening condition of the second valve chamber of the bridge valve is controlled by turning the bridge valve on or off, thereby controlling the opening condition of the channels connected to the three ports of the bridge valve.

[0020] In combination with the first aspect, in one embodiment, it further includes a first automatic switch for controlling the power on or off of the main charging valve, and also includes a second automatic switch for controlling the power on or off of the bridge valve.

[0021] In the embodiment of the present application, the power on or off of the main filling valve and the bridge valve can be controlled by two automatic switches, and the operation is simple.

[0022] In combination with the first aspect, in one implementation, a muffler is provided at a port of the bridge valve connected to the external environment.

[0023] In the embodiment of the present application, in order to protect the safety of the operator and reduce the noise pollution caused to the external environment, a muffler is provided at the port where the bridge valve is connected to the external environment.

[0024] In combination with the first aspect, in one implementation, a dust ring is provided in the muffler.

[0025] In the embodiment of the present application, a dustproof ring is provided in the muffler to prevent particulate matter from being discharged into the external environment, thereby preventing environmental pollution.

[0026] In combination with the first aspect, in one embodiment, it also includes a box body and a box cover connected to the box body, the main filling valve and the bridge valve are located in the box body, and the first through hole and the second through hole are symmetrically provided on both sides of the box body, the air inlet of the main filling valve is located in the first through hole, and the port of the bridge valve connected to the tire is located in the second through hole, and the box cover is provided with a third through hole, and the port of the bridge valve connected to the external environment is located in the third through hole.

[0027] In the embodiment of the present application, since the main filling valve and the bridge valve are placed in the box body, the device has dustproof and waterproof capabilities.

[0028] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0029] The present application realizes the inflation and deflation of the tire by controlling the opening of the main filling valve and the bridge valve. When the main filling valve is powered on and the bridge valve is powered off, the main filling valve is connected to the tire through the bridge valve, and the channel connecting the bridge valve and the external environment is closed, and the tire is inflated at this time; when the main filling valve is powered off and the bridge valve is powered on, the tire is connected to the external environment through the bridge valve, and the connecting channel between the main filling valve and the bridge valve is closed, and the tire is deflated at this time. The present application can realize the inflation and deflation of the tire only by controlling the power on or off of the main filling valve and the bridge valve, and the operation is simple, and there is no need to install too many parts, and the reliability is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a schematic diagram of the structure of the semi-automatic tire inflation and deflation device according to an embodiment of the present application;

[0032] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0033] Figure 3 for Figure 1 The left schematic diagram in ;

[0034] Figure 4 for Figure 3 DD cross-sectional view in .

[0035] In the figure:

[0036] 1. Main charging valve; 11. First coil; 12. First moving iron core; 13. First valve cover; 14. First piston; 15. First piston rod; 16. First valve chamber; 17. First spring; 18. Second valve cover;

[0037] 2. Air inlet connector; 3. Air plug socket; 4. Screws; 5. Muffler; 6. Air outlet connector;

[0038] 7. Bridge valve; 71. Second coil; 72. Second moving iron core; 73. Third valve cover; 74. Second piston rod; 75. First spring; 76. Second valve chamber; 77. Third piston rod; 78. Second spring; 79. Bridge valve lower cover; 710. Guide column;

[0039] 8. Connecting joint; 9. Bracket; 10. Box body; 101. Box cover. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] The embodiment of the present application provides a semi-automatic tire inflation and deflation device, which can solve the problem of a large number of parts and poor reliability required for tire inflation and deflation devices in the prior art.

[0042] like Figures 1 to 4As shown, the present application provides an embodiment of a semi-automatic tire inflation and deflation device, which includes: a main inflation valve 1 and a bridge valve 7, wherein the main inflation valve 1 is provided with two ports, one of which is an air inlet, and the other port is connected to the bridge valve 7. The bridge valve 7 is provided with three ports, and the three ports are respectively connected to the main inflation valve 1, the tire, and the external environment. When the main inflation valve 1 is powered on and the bridge valve 7 is powered off, the main inflation valve 1 is connected to the tire through the bridge valve 7, and the channel connecting the bridge valve 7 and the external environment is closed; when the main inflation valve 1 is powered off and the bridge valve 7 is powered on, the tire is connected to the external environment through the bridge valve 7, and the channel connecting the bridge valve 7 and the main inflation valve 1 is closed.

[0043] In this embodiment, the bridge valve 7 is provided with three ports, namely the first port, the second port and the third port. The first port is connected to the main filling valve 1, the second port is connected to the tire, and the third port is connected to the external environment. When the main filling valve 1 is powered on and the bridge valve 7 is powered off, the main filling valve 1 is connected to the first port of the bridge valve 7, the bridge valve 7 is connected to the tire through the second port, and the channel connecting the bridge valve 7 to the external environment through the third port is closed; when the main filling valve 1 is powered off and the bridge valve 7 is powered on, the gas of the tire enters the bridge valve 7 through the second port of the bridge valve 7, the channel connecting the bridge valve 7 to the external environment through the third port is opened, and the channel connecting the bridge valve 7 to the main filling valve 1 through the first port is closed. The tire can be inflated and deflated by controlling the power on or off of the main filling valve 1 and the bridge valve 7. The operation is simple, and there is no need to install too many parts, and the reliability is guaranteed.

[0044] In some embodiments, the device further comprises an air cylinder, which is located on the rim for clamping the tire, and is connected to the air inlet via the air inlet connector 2. The air cylinder can provide an air source to the inflation and deflation device, and the air cylinder is connected to the air inlet via the air inlet connector 2 to prevent gas leakage during inflation.

[0045] like Figure 1 and Figure 2 As shown, in some embodiments, the port of the bridge valve 7 connected to the tire is connected to the tire through an air outlet connector 6. By providing the air outlet connector 6, gas leakage is prevented during the inflation process of the tire.

[0046] like Figure 1 and Figure 2 As shown, in some embodiments, the port of the bridge valve 7 connected to the main filling valve 1 is connected to the main filling valve 1 through a connecting joint 8. By providing the connecting joint 8, the gas in the main filling valve 1 is prevented from leaking when flowing into the bridge valve 7.

[0047] In some embodiments, the main filling valve 1 is a normally closed two-position two-way solenoid valve. When not powered, the first valve chamber 16 of the main filling valve 1 is closed; when powered, the first valve chamber 16 of the main filling valve 1 is opened, that is, the passage connecting the main filling valve 1 and the bridge valve 7 is opened. By powering on or off the main filling valve 1, the opening of the first valve chamber 16 of the main filling valve 1 is controlled, and the opening of the passage connecting the main filling valve 1 and the bridge valve 7 is further controlled.

[0048] In some embodiments, the bridge valve 7 is a normally closed two-position three-way solenoid valve. When not powered on, the second valve chamber 76 of the bridge valve 7 is closed; when powered on, the second valve chamber 76 of the bridge valve 7 is opened, that is, the passage connecting the bridge valve 7 to the external environment is opened, and the passage connecting the bridge valve 7 to the main charging valve 1 is closed. By powering on or off the bridge valve 7, the opening of the second valve chamber 76 of the bridge valve 7 is controlled, and the opening of the passages connecting the three ports of the bridge valve 7 is further controlled.

[0049] In some embodiments, the device further comprises a first automatic switch and a second automatic switch, wherein the first automatic switch controls the main filling valve 1 to be powered on or off, and the second automatic switch controls the bridge valve 7 to be powered on or off. The two automatic switches can be used to control the power on or off of the main filling valve 1 and the bridge valve 7, and the operation is simple.

[0050] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the port where the bridge valve 7 is connected to the external environment is provided with a muffler 5. Due to the high pressure of the compressed gas in the tire, when the compressed gas is discharged from the bridge valve 7 to the external environment, the discharge of the compressed gas is often accompanied by noise. In order to protect the safety of the operator and reduce the noise pollution caused to the external environment, a muffler 5 is provided at the port where the bridge valve 7 is connected to the external environment.

[0051] Preferably, the muffler 5 is any one of a resistive muffler, a reactive muffler and an impedance composite muffler. In actual use, the appropriate type of muffler 5 can be selected according to the noise level of the compressed gas discharged into the external environment. The resistive muffler is suitable for reducing noise in the medium or high frequency band, the reactive muffler is suitable for reducing noise in the low frequency and medium-low frequency band, and the impedance composite muffler is suitable for reducing noise in the low frequency, medium frequency and high frequency bands.

[0052] Furthermore, a dust ring is provided in the muffler 5. Since the gas discharged from the tire contains particulate matter, a dust ring is provided in the muffler 5 to prevent the particulate matter from being discharged into the external environment and to prevent environmental pollution.

[0053] like Figure 1 and Figure 3As shown, in some embodiments, the above-mentioned device also includes a box body 10 and a box cover 101 connected to the box body 10, the main filling valve 1 and the bridge valve 7 are located in the box body 10, and the first through hole and the second through hole are symmetrically provided on both sides of the box body 10, the air inlet of the main filling valve 1 is located in the first through hole, and the port of the bridge valve 7 communicating with the tire is located in the second through hole, the box cover 101 is provided with a third through hole, and the port of the bridge valve 7 communicating with the external environment is located in the third through hole. In this embodiment, the box cover 101 is mounted on the box body 10 by means of screws 4, a bracket 9 is provided on the inner bottom wall of the box body 10, the main filling valve 1 and the bridge valve 7 are located on the bracket 9, the box body 10 is symmetrically provided with a first through hole and a second through hole on the left and right sides, the main filling valve 1 is on the left side of the box body 10, the bridge valve 7 is on the right side, the air inlet of the main filling valve 1 is located at the through hole on the left side of the box body 10, the box body 10 is also provided with an aviation socket 3 on the left side, the main filling valve 1 and the bridge valve 7 are both connected to the aviation socket 3, the port of the bridge valve 7 communicating with the tire is located at the through hole on the right side of the box body 10, the box cover 101 is provided with a third through hole, and the port of the bridge valve 7 communicating with the external environment is located at the third through hole on the box cover 101. Since the main filling valve 1 and the bridge valve 7 are placed in the box body 10, the device has dustproof and waterproof capabilities.

[0054] The working principle of a semi-automatic tire inflation and deflation device of the present application is introduced below. When the main filling valve 1 is energized and the bridge valve 7 is energized, gas enters the main filling valve 1 through the air inlet, at this time the first coil 11 is energized, the first moving iron core 12 is attracted upward, the air hole of the first valve cover 13 is opened, and the gas enters the top of the first valve cover 13 through the internal air passage. At this time, there is air above the first valve cover 13, the first piston 14 moves downward, the first piston rod 15 moves downward, the first valve chamber 16 of the main filling valve 1 is opened, and the gas enters the bridge valve 7. At this time, the second coil 71 is de-energized, the passage between the bridge valve 7 and the external environment is closed, and the gas flows from the bridge valve 7 into the tire. When the main filling valve 1 is powered off and the bridge valve 7 is powered on, the gas in the tire enters the bridge valve 7. At this time, the second coil 71 is powered on, the second moving iron core 72 is attracted upward, the air hole of the third valve cover 73 is opened, and the gas enters the top of the third valve cover 73 through the internal air passage. The gas squeezes the second piston rod 74 on the bridge valve 7 downward through the air hole of the third valve cover 73. At the same time, the third piston rod 77 of the bridge valve 7 is squeezed downward by the second piston rod 74 of the bridge valve 7, the second valve chamber 76 of the bridge valve 7 is opened, the passage between the bridge valve 7 and the main filling valve 1 is closed, and the gas in the bridge valve 7 is discharged into the external environment.

[0055] In summary, the present application realizes the inflation and deflation of the tire by controlling the opening of the main filling valve 1 and the bridge valve 7. When the main filling valve 1 is powered on and the bridge valve 7 is powered off, the main filling valve 1 is connected to the tire through the bridge valve 7, and the channel connecting the bridge valve 7 and the external environment is closed, and the tire is inflated at this time; when the main filling valve 1 is powered off and the bridge valve 7 is powered on, the tire is connected to the external environment through the bridge valve 7, and the communication channel between the main filling valve 1 and the bridge valve 7 is closed, and the tire is deflated at this time. The present application can realize the inflation and deflation of the tire only by controlling the power on or off of the main filling valve 1 and the bridge valve 7, and the operation is simple, and there is no need to install too many parts, and the reliability is guaranteed.

[0056] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0057] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A semi-automatic tire inflation and deflation device, characterized in that: include: A main filling valve (1) and a bridge valve (7), wherein one end of the main filling valve (1) is an air inlet, and the other end is connected to the bridge valve (7), and the bridge valve (7) is provided with three ports, and the three ports are respectively connected to the main filling valve (1), the tire and the external environment; When the main filling valve (1) is powered on and the bridge valve (7) is powered off, the main filling valve (1) is connected to the tire through the bridge valve (7), and the passage connecting the bridge valve (7) and the external environment is closed; When the main filling valve (1) is powered off and the bridge valve (7) is powered on, the tire is connected to the external environment through the bridge valve (7), and the channel connecting the bridge valve (7) and the main filling valve (1) is closed.

2. The semi-automatic tire inflation and deflation device according to claim 1, characterized in that: It also comprises an air cylinder, which is located on a wheel rim for clamping the tire, and is connected to the air inlet via an air inlet joint (2).

3. The semi-automatic tire inflation and deflation device according to claim 1, characterized in that: The port of the bridge valve (7) connected to the tire is connected to the tire via an air outlet joint (6).

4. The semi-automatic tire inflation and deflation device according to claim 1, characterized in that: The port of the bridge valve (7) connected to the main filling valve (1) is connected to the main filling valve (1) via a connecting joint (8).

5. The semi-automatic tire inflation and deflation device according to claim 1, characterized in that: The main filling valve (1) is a normally closed two-position two-way solenoid valve. When the main filling valve (1) is energized, the first valve chamber (16) of the main filling valve (1) opens, and the channel connecting the main filling valve (1) and the bridge valve (7) opens.

6. The semi-automatic tire inflation and deflation device according to claim 1, characterized in that: The bridge valve (7) is a normally closed two-position three-way solenoid valve. When the bridge valve (7) is energized, the second valve chamber (76) of the bridge valve (7) opens, the passage connecting the bridge valve (7) and the external environment opens, and the passage connecting the bridge valve (7) and the main charging valve (1) closes.

7. The semi-automatic tire inflation and deflation device according to claim 1, characterized in that: It also includes a first automatic switch for controlling the main filling valve (1) to be powered on or off, and a second automatic switch for controlling the bridge valve (7) to be powered on or off.

8. The semi-automatic tire inflation and deflation device according to claim 1, characterized in that: A muffler (5) is provided at the port of the bridge valve (7) connected to the external environment.

9. The semi-automatic tire inflation and deflation device according to claim 8, characterized in that: A dustproof ring is arranged inside the muffler (5).

10. The semi-automatic tire inflation and deflation device according to claim 8, characterized in that: The invention also comprises a box body (10) and a box cover (101) connected to the box body (10), wherein the main filling valve (1) and the bridge valve (7) are located in the box body (10), and a first through hole and a second through hole are symmetrically provided on both sides of the box body (10), an air inlet of the main filling valve (1) is located in the first through hole, a port of the bridge valve (7) communicating with the tire is located in the second through hole, and the box cover (101) is provided with a third through hole, and a port of the bridge valve (7) communicating with the external environment is located in the third through hole.

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