WO2015139299A1

WO2015139299A1 - Wheel lifting apparatus and pipeline assembly for control thereof

Info

Publication number: WO2015139299A1
Application number: PCT/CN2014/073849
Authority: WO
Inventors: 吴江川; 吴昌鸿
Original assignee: 吴江川; 吴昌鸿
Priority date: 2014-03-21
Filing date: 2014-03-21
Publication date: 2015-09-24

Abstract

A wheel lifting apparatus and a pipeline assembly for control thereof. The pipeline assembly for control is applicable to a wheel lifting apparatus (1) and is used for controlling inflation and deflation of air bags in the wheel lifting apparatus (1). The pipeline assembly for control is provided with a five-port two-position valve (4) used for integrating pipelines for connecting air bags, so that the pipelines are simplified, and easy operation is provided to a user.

Description

The existing wheel lifting device can refer to the description of the patent document such as Taiwanese M420468, which mainly includes a first air bag, a second air bag and a set of movable brackets, and respectively charges and deflates the first air bag and the second air bag. The movable bracket can be operated, and the wheel can be lifted by lifting the axle with the movable bracket. In the existing wheel lifting device, as described in the Taiwanese M420468 patent document, the structure of the first airbag and the second airbag are different, and the first airbag is small, It is necessary to provide the main force required to lift the wheel. The second airbag is larger, but only needs to provide the force required to support the position of the wheel and the axle. Therefore, the first airbag has a small amount of charge and discharge, and the pressure is high. The charging and deflation amount is large and the pressure is low, which complicates the structure of the charging and deflation lines of the existing wheel lifting device; in addition, since the volume of the first air bag and the second air bag during charging and deflation is affected by the movable bracket The charging and deflation speeds that are not properly matched make it easy for one of the airbags to over-stretch or squash the other airbag via the movable bracket, thereby reducing the service life of the airbag.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a wheel lifter line that is simple in construction and easy to operate to properly charge and deflate an air bag. In this regard, the present invention also provides a pipeline assembly for controlling an eyebrow, which is adapted to control a wheel lifting device for charging and deflation of the first airbag and the second airbag of the wheel lifting device. The pipeline assembly for control includes an upstream port, a first downstream port, a second downstream port, and a control width. The upstream port is connected in series to a fluid pressure source. The first downstream port is connected in series to the first air bag. The second downstream port is connected in series to the second air bag. The control valve has an input port, a first output port, a second output port, a first discharge port, a second discharge port and a control end, the input port is serially connected to the upstream port, the first output Port serial The second downstream port is connected to the second downstream port, and the control has a first position and a second position. When the control valve is in the first position, the input port and the first port are An output port is connected and the second output port is in communication with the second discharge port. When the control valve is in the second position, the input port is in communication with the second output port, and the first output port is connected to the first discharge port. The control end is controlled to switch the control between the first position and the second position. Thereby, the pipeline assembly for control provided by the present invention has a relatively simplified pipeline configuration, and the fluid pressure source is switched and connected to the first airbag or the second airbag by using a control valve, thereby obtaining a relatively simple control pipeline. In some cases, the control line assembly can include an upstream bucking width, a downstream buckling width, a quick release valve, a one-way relief tube, or a throttle vent valve.

The upstream pressure reducing valve is connected in series between the upstream port and the input port to reduce the fluid pressure from the fluid pressure source to an appropriate pressure after passing through the upstream pressure reducing valve. The downstream buck is connected in series between the second output port and the second downstream port to further reduce the fluid pressure from the upstream pressure reducing valve or the fluid pressure source after the downstream pressure reduction. The quick release is connected in series between the downstream step-down and the second downstream port, so that fluid from the downstream pressure reducing valve can be filled to the second downstream port via the quick release valve, and the fluid from the downstream pressure reducing valve The fluid at the second downstream port can be released directly from the quick release valve when the pressure is reduced. The one-way pressure relief pipe is connected in parallel with the downstream pressure reduction and is connected between the quick release and the second output port, and can reduce the fluid pressure between the downstream pressure reducing valve and the quick release when the pressure of the second output port decreases. Released to the second output port via a one-way relief tube. The throttle exhaust valve is coupled to the first discharge port to facilitate control of the rate at which fluid is discharged through the first discharge port. Thereby, the pipeline assembly for control can be adjusted to adjust the upstream pressure reducing valve and the downstream pressure reducing, and directly adapt to the filling pressure required by the first airbag and the second airbag, which is convenient for operation; the second airbag can be arranged through the quick release valve Gas, shorten the exhaust path, speed up the exhaust speed, and use the throttle exhaust valve to control the exhaust velocity of the first airbag, which is convenient for the user to control the exhaust speed of the first airbag and the second airbag, and simplify the operation complexity. It helps to avoid deformation of the airbag and maintain the service life of the airbag.

Figure 1 is a schematic illustration of an embodiment of the invention.

2 is a view of a pneumatic circuit of an embodiment of the present invention. intention.

1: Wheel lifting device 4h input port

11; first air bag 42: first output port

12: second. air bag 43; second output port

13: Axle 44: First discharge

2: Fluid pressure source 45: 1 . 46: Control terminal

22; 31:

32: 33:

4:

The following is a description of the possible embodiments of the invention, but is not intended to limit the scope of the invention.

Referring to FIG. 1 and FIG. 2, the embodiment provides a pipeline assembly for control, which is suitable for controlling a wheel lifting device. As shown in FIG. 3 and FIG. 4, the first connection to the wheel lifting device 1 is provided. The airbag 11 and the second airbag 12. The pipeline assembly for control is connected to a fluid pressure source 2, such as an air compressor or an air pump, to obtain compressed air required for inflating the airbag of the wheel lifting device, wherein the fluid pressure source 2 can also It further contains a filter 21, a safety barrier 22 and other control components. Referring to FIG. 2 to FIG. 4, the pipeline assembly for control includes an upstream port 31, a first downstream port 32, a second downstream port 33, a control valve 4, an upstream pressure reducing valve 5, and a downstream drop. The pressure valve 6, a quick release 7, a one-way pressure relief pipe 8 and a throttle exhaust manifold 9. The upstream port 31 is connected in series with the fluid pressure source 2 and receives compressed air from the fluid pressure source 2. The first downstream port 32 is connected in series to the first airbag 11, and can compress compressed air to the first airbag when inflated or receive the exhausted air from the first airbag 11 when exhausting. The second downstream port 33 is connected in series to the second air bag 12, and can compress the compressed air to the second air bag 12 when inflated, or receive the exhausted air from the second air bag 12 when exhausting. The control valve 4 has an input port 41, a first output port 42, a second output port 43, a first discharge port 44, a second discharge port 45, and a control end 46. The input port 41 is connected in series. The upstream port 31 can receive compressed air from the upstream port. The first output port 42 is connected in series to the first downstream port 32, and the compressed air can be sent to the first downstream port. The second output port 43 Connected to the second downstream port 33, the compressed air can be sent to the second downstream port, the control width 4 has a first position and a second position, when the control is wider than the first position, as shown in the figure 2 and FIG. 3, the input port 41 is in communication with the first output port 42 and the second output port 43 is in communication with the second discharge port 45, so that the compressed air received by the input port 4i is directed to the first output port 42. The output is further filled to the first air bag 11, and the air of the second output port 43 can be discharged through the second discharge port 45. Referring to FIG. 2 and FIG. 4, when the control valve 4 is in the second position, the input port 41 is in communication with the second output port 43. The first output port 42 is in communication with the first discharge port 44 to make an input. The compressed air received by the port 41 is output to the second output port 43 and further filled to the second air bag 12, and the air of the first output port 42 is discharged through the first discharge port 44. The control terminal 46 is controlled to switch the control valve between the first position and the second position. In the embodiment, the control valve 4 is a solenoid valve, so the control terminal 46 is a circuit for control. The terminal is further connected to a switch for the user to switch operation; for the convenience operation, the control end 46 may also include a button disposed on the surface of the control valve 4 for direct pressing, and the position of the valve is opened and closed by the button. In the present embodiment, the control width 4 is specifically a five-port two-position valve, however, the present invention does not exclude the possibility of using a threshold body having more ports and working positions.

The upstream pressure reducing valve 5 is connected in series between the upstream port 31 and the input port 41, so that the pressure of the gas from the fluid pressure source is stepped down by the upstream step-down width 5 and then sent to the input port 41, which can be placed at the control valve 4 position. The first position ^ is continuously sent to the first air bag 11 via the first output port 42, so that the pressure of the upstream pressure reducing valve 5 can be adjusted in accordance with the demand of the first air bag ii.

The downstream pressure reducing valve 6 is connected in series between the second output port 43 and the second downstream port 33, and the pressure of the gas from the upstream pressure reducing valve 5 is stepped down by the downstream when the control width 4 is in the second position. After the wide 6 is stepped down, it is sent to the second downstream port 33, and further sent to the second air bag i2, so that the downstream buck is 6 wide. The pressure can be adjusted in accordance with the requirements of the second air bag 12.

The quick release valve 7 is connected in series between the downstream pressure reducing valve 6 and the second downstream port 33, and the air in the second air bag 12 can be passed through the second downstream port 33 when the control valve 4 is in the second position. Release with 7 quickly and easily.

The one-way pressure relief pipe 8 is connected in parallel with the downstream pressure reducing valve 6 between the quick release valve 7 and the second output port 43 to enable the downstream pressure reducing valve 6 to be used when the control valve position is in the second position. The residual compressed air between the quick release valve 7 can be released via the one-way pressure relief pipe 8, the second output port 43, and the second discharge port 45. Specifically, the one-way pressure relief pipe can include a one-way valve and The corresponding piping for the connection.

The throttle exhaust vent 9 is connected to the first discharge port 44, and the air in the first air bag 11 can be passed through the first output port 42, the first discharge port 44, and the section when the control valve 4 is in the second position. The exhaust vent 9 is released, and the user can use the throttle venting valve 9 to control the speed at which the air in the first airbag 11 is outwardly displaced.

In this embodiment, the first downstream port 32 is connected to the first air bag 11, and the second downstream port 33 is connected to the second air bag 12. To smoothly lift the axle, the wheel lifting device may have two or more groups. An air bag and a second air bag, wherein the first downstream port is connectable to the plurality of first air bags in parallel, and the plurality of sets of the quick release valve and the second downstream port are further disposed in parallel from the downstream pressure reducing valve, as shown in FIG. For use with multiple second airbags.

With the above device, referring to FIG. 2 and FIG. 3, the user wants to lift the axle 13 ίΗ·, the control width 4 can be switched to the first position, and the residual compressed air between the quick release valve 7 and the downstream pressure reducing valve 6 is After being released by the one-way pressure relief pipe 8, the second output port 43, and the second discharge port 45; after the user activates the fluid pressure source 2, the compressed air will be input from the fluid pressure source 2 through the upstream port 31, the upstream pressure reducing valve 5, and the input The port 41, the first output port 42 and the first downstream port 32 are sent to the first air bag 11, so that the first air bag 11 is inflated, and the air originally located in the second air bag 12 is released through the second downstream port 33 and the quick release 7 The second airbag is compressed, and the axle 13 is lifted. At this time, the air in the second airbag 12 is released immediately after entering the quick release valve 7, and there is no need to return to the control width, so that the second airbag has a shorter row. The air route, exhausted and smooth, helps to shorten the time required to lift the axle.

Referring to FIG. 2 and FIG. 4, when the user wants to lower the axle 13, the control valve 4 can be switched to the second position, and the air in the first airbag can be throttled through the first output port 42, the first discharge port 44, and the throttle. The exhaust air is 9 released; after the user activates the fluid pressure source 2, the compressed air will flow from the fluid pressure source 2 through the upstream port 31, The upstream pressure reducing threshold 5, the input port 41, the second output port 43, the downstream step-down width 6, the quick release valve 7 and the second: downstream port 33 are sent to the second air bag i2 to inflate the second air bag; The air in the air bag ii needs to be released through the throttle exhaust valve 9, which is convenient for the user to control the speed of the first air bag 11 exhaust compression by using the throttle exhaust valve 9, avoiding the first air bag exhausting too fast, so that the axle The movable bracket of the wheel lifting device is pulled by gravity to pull down the second airbag 12 to prevent the second airbag from being subjected to tensile deformation. Summarizing the above embodiments, the pipeline assembly provided by the present invention can provide a single-line pipeline structure, which is convenient to operate, and also helps to avoid abnormal deformation of the airbag in the wheel lifting device, and can help maintain the service life of the airbag. It is indeed a progressive effect.

Claims

Claim

1. A pipeline assembly for controlling, which can be adapted to control a wheel lifting device, wherein the wheel lifting device has a first air bag and a second air bag, and the control pipeline assembly comprises:

An upstream port for serial connection to a fluid pressure source;

a first downstream port for serially connecting to the first air bag;

a second downstream port for serially connecting to the second air bag;

a control valve includes an input port, a first output port, a second output port, a first drain port, a second drain port, and a control end, the input port being serially connected to the upstream port, the first An output port is serially connected to the first downstream port, the second output port is serially connected to the second downstream port, and the control valve has a first position and a second position, and the control is wider than the first position The input port is in communication with the first output port, and the second output port is in communication with the second discharge port. When the control is wider than the second position, the input port is in communication with the second output port and the first output port is The first discharge port is in communication, and the control end is controlled to switch between the first position and the second position of the control valve.

2 . The pipeline assembly for control according to claim 1 , wherein the pipeline assembly for control further comprises an upstream pressure reducing valve, wherein the upstream pressure reducing valve is serially connected to the upstream port and the Between the input ports.

3. The pipeline assembly for control according to claim 1, wherein the pipeline assembly for control further comprises a downstream pressure reducing valve, the downstream pressure reducing valve being serially connected to the second output port Between the second downstream port and the second downstream port.

4. The pipeline assembly for control according to claim 3, wherein the pipeline assembly for control further comprises a quick release valve, the quick release cascade connected to the downstream pressure reducing valve and the Between the second downstream ports.

The pipeline assembly for control according to claim 4, wherein the pipeline assembly for control further comprises a one-way pressure relief pipe, the one-way pressure relief pipe and the downstream pressure reducing valve Connected in parallel between the quick release and the second output port.

6. The pipeline assembly for control according to claim 1, wherein the control pipeline assembly further comprises a throttle exhaust valve, the throttle exhaust valve being coupled to the first exhaust mouth.

7. A wheel lifting device having a first air bag and a second air bag, characterized in that: the wheel lifting device comprises the control line assembly according to any one of claims 1 to 6, First downstream The port is serially connected to the first airbag,