Patent Grant
10753351
This application is a U.S. National Phase application, under 35 U.S.C. ยง 371, of International Application no. PCT/CN/2015/088820, with an international filing date of Sep. 2, 2015, which is hereby incorporated by reference for all purposes.
The present application relates to a field of tire repair products, and more particularly relates to an air inflation device and a tire repair machine comprising the air inflating device.
In an existing tire repair machine, an air inflating device usually takes up a large space. Moreover, an air compressed process of the air inflating device is exothermic, and heat generated during the air compressed process cannot be dissipated quickly, which will prolong tire inflation time.
In a conventional compressor mechanism, for example, in U.S. Pat. Nos. 8,016,002 B2, 7,547,201 B2, 8,684,046 B2, 8,997,801 B, US20130199666 A1, U.S. Pat. No. 6,789,581 B2 and EP2497627 A1, a hot spot such as an outlet nozzle connected to a compression chamber is located far away from a fan on a motor. On top of that, air paths for heat dissipation and an air intake for compression are not optimized, so that interference between the air paths exists.
Moreover, in U.S. Pat. Nos. 8,752,595 B2 and 7,789,110 B2, components in some available products are closely packed. There is no description about air flow within the compressor. Besides, there is barely enough room for air flowing from/to ventilation holes. Thus, heat dissipation of the compressor is not optimized.
In additions, some compressors have a heat dissipation structure, particularly, a housing with ventilation holes and directed air flow. However, the distance between the fan on the motor and the hot spot is not minimized. The air intake for heat dissipation and air intake for air compression is from the same ventilation holes, as shown in US 2013 0228316 A1.
The objective of the present application is to provide an air inflation device and a tire repair machine comprising the air inflating device, aiming at defects that an air inflating device usually takes up a large space in an existing tire repair machine; and an air compressed process cannot be dissipated quickly, which will prolong tire inflation time process of the air inflating device is exothermic, and heat generated during the air compressed and result in a undesired high surface temperature.
The technical solutions of the present application for solving the technical problems are as follows:
in one aspect, an air inflating device is provided, which comprises:
a housing,
a compressor device including:
a compressor main body configured for generating compressed air,
an outlet nozzle that is connected to the compressor main body as a compressed air discharge opening, and
a pressure gauge configured for measuring a pressure of the compressed air from the compressor main body;
wherein the compressor main body includes:
a motor,
a fan mounted on the motor,
a first bevel gear driven by the motor,
a second bevel gear engaging with the first bevel gear,
a piston driven by the second bevel gear via a connecting rod, and
a cylinder equipped with the piston in a reciprocal manner and forming a first chamber for compressing air inside to generating compressed air;
the outlet nozzle is connected to the first chamber; the compressor device is stored in the housing, and the housing is divided into a second chamber and a third chamber by the compressor device; the fan and the outlet nozzle are located in the second chamber.
In one embodiment, the housing has one or more ventilation holes for air from surrounding to enter and leave the second chamber.
In another embodiment, the housing has one or more air intake holes to take air from surrounding to the first chamber.
In another embodiment, the compressor main body further includes a bearing and a second rotation shaft; the outer ring of the bearing is mounted on the housing, and the second rotation shaft is fixed in the inner ring of the bearing axially; the second bevel gear is mounting on the second rotation shaft axially, and the second rotation shaft is perpendicular to the first rotation shaft.
In another embodiment, a load is mounted on the second bevel gear or the second rotation shaft; and the connecting rod is eccentrically mounted on the load.
In another embodiment, the first bevel gear and the second bevel gear have a shaft angle of 45-120 degrees.
In another embodiment, the air inflating device further comprises a separation barrier that is arranged in the housing; and the separation barrier has a second fixing hole and a third fixing hole; and the motor is arranged in the second fixing hole, and the cylinder is arranged in the third fixing hole; the second chamber and the third chamber are separated completely via the separation barrier and the compressor device.
In another aspect, an air inflating device comprises:
a housing,
a compressor device including:
a compressor main body configured for generating compressed air,
an outlet nozzle that is connected to the compressor main body as a compressed air discharge opening, and
a pressure gauge configured for measuring a pressure of the compressed air from the compressor main body;
wherein the compressor main body includes:
a motor,
a fan mounted on the motor,
a first helical gear driven by the motor,
a second helical gear engaging with the first helical gear,
a piston driven by the second helical gear via a connecting rod, and
a cylinder equipped with the piston in a reciprocal manner and forming a first chamber for compressing air inside to generating compressed air;
the outlet nozzle is connected to the first chamber; the compressor device is stored in the housing, and the housing is divided into a second chamber and a third chamber by the compressor device; the fan and the outlet nozzle are located in the second chamber.
In one embodiment, the housing has one or more ventilation holes for air from surrounding to enter and leave the second chamber.
In another embodiment, the housing has one or more air intake holes to take air from surrounding to the first chamber.
In another embodiment, the compressor main body further includes a bearing and a second rotation shaft; the outer ring of the bearing is mounted on the housing, and the second rotation shaft is fixed in the inner ring of the bearing axially; the second helical gear is mounting on the second rotation shaft axially, and the second rotation shaft is perpendicular to the first rotation shaft.
In another embodiment, a load is mounted on the second helical gear or the second rotation shaft; and the connecting rod is eccentrically mounted on the load.
In another embodiment, further comprises a separation barrier that is arranged in the housing; and the separation barrier has a second fixing hole and a third fixing hole; and the motor is arranged in the second fixing hole, and the cylinder is arranged in the third fixing hole; the second chamber and the third chamber are separated completely via the separation barrier and the compressor device.
In another aspect, a tire repair machine comprising the air inflating device is provided.
In another aspect, an manufacturing method of an air inflating device to inflate air into a tire is provided, the air inflating device comprises a fan mounted on a motor, a compressor main body driven by the motor and configured for generating compressed air, an outlet nozzle serving as a compressed air discharge opening and a housing accommodating the fan, the motor, the compressor main body and the outlet nozzle;
the manufacturing method comprises dividing the housing into a second chamber and a third chamber to make an air compression process of the compressor main body be done in the third chamber, and making the fan and the outlet nozzle be located in the second chamber and be aligned in a straight line, so that air flow generated by the fan cools the outlet nozzle directly;
the manufacturing method further comprises setting one or more ventilation holes on the second chamber to make the one or more ventilation holes and the second chamber form an air flow path for air from surrounding to enter and leave the second chamber, and setting one or more air intake holes on the third chamber to take air from surrounding to the first chamber.
The air inflating device and the tire repair machine of the present application adopt a compressor device as an air inflating mechanism, which reduces the volume of the air inflation device; and in the compressor device, an outlet nozzle and a piston are separated, which promote heat dissipation of the air inflating device. The air inflating device and the tire repair machine of the present application has a simple structure and a strong practicality.
The objective of the present application is to provide an air inflation device and a tire repair machine comprising the air inflating device, aiming at defects that an air inflating device usually takes up a large space in an existing tire repair machine; and an air compressed process of the air inflating device is exothermic, and heat generated during the air compressed process cannot be dissipated quickly, which will prolong tire inflation time. The technical solution provided by the present application is to provide a compressor device as an air inflating mechanism of the air inflation device, which reduces the volume of the air inflation device; and in the compressor device, an outlet nozzle and a piston are separated, which promote heat dissipation of the air inflating device.
To make the technical feature, objective and effect of the present application be understood more clearly, now the specific implementation of the present application is described in detail with reference to the accompanying drawings and embodiments.
As shown in
In
In
Furthermore, in
Specifically, in the embodiment, in
Furthermore, in
Furthermore, in
Furthermore, in
For the compressor device 2 adopts the U-shaped design, the distance between the fan 212 and the outlet nozzle 22 which is a hotspot is minimized. Since the distance is minimized, the cooling effect on the hotspot by convection driven by the fan is maximized. Thus, the operating temperature of the compressor device 2 is lower compared with the conventional design and a desired lower surface temperature of the compressor device 2 is achieved. Furthermore, According to the thermodynamic, the compression of air inside the cylinder 217 is exothermic. It implies that the compression is favored at a lower temperature.
As the operating temperature of the compressor device 2 of the present application is lower, the compression of the compressor device 2 is favored, which results in lower energy consumption and shorter tire inflation time.
Furthermore, in
Besides, the outlet nozzle 22 is a straight outlet nozzle, which eliminates a heat generation effect that is due to collision of compressed air particles on the pipe wall of a conventional 90 degree bended outlet nozzle.
As shown in
The present application further provides a tire repair machine, and the tire repair machine comprises the air inflating device.
The present application further provides a manufacturing method of an air inflating device to inflate air into a tire; the air inflating device comprises a fan mounted on a motor, a compressor main body driven by the motor and configured for generating compressed air, an outlet nozzle serving as a compressed air discharge opening and a housing accommodating the fan, the motor, the compressor main body and the outlet nozzle;
the manufacturing method comprises dividing the housing into a second chamber and a third chamber to make an air compression process of the compressor main body be done in the third chamber, and making the fan and the outlet nozzle be located in the second chamber and be aligned in a straight line, so that air flow generated by the fan cools the outlet nozzle directly;
the manufacturing method further comprises setting one or more ventilation holes on the second chamber to make the one or more ventilation holes and the second chamber form an air flow path for air from surrounding to enter and leave the second chamber, and setting one or more air intake holes on the third chamber to take air from surrounding to the first chamber.
The air inflating device and the tire repair machine of the present application adopt a U-shaped compressor device as an air inflating mechanism, which reduces the volume of the air inflation device; and in the compressor device, an outlet nozzle and a piston are separated, which promote heat dissipation of the air inflating device. The air inflating device and the tire repair machine of the present application has a simple structure and a strong practicality.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2015/088820 | 9/2/2015 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2017/035805 | 3/9/2017 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5378119 | Goertzen | Jan 1995 | A |
| 6789581 | Cowan et al. | Sep 2004 | B2 |
| 7547201 | Chou | Jun 2009 | B2 |
| 7789110 | Marini | Sep 2010 | B2 |
| 8016002 | Yoshida et al. | Sep 2011 | B2 |
| 8684046 | Kojima et al. | Apr 2014 | B2 |
| 8752595 | Marini et al. | Jun 2014 | B2 |
| 8997801 | Kojima et al. | Apr 2015 | B2 |
| 20070065311 | Chou | Mar 2007 | A1 |
| 20130199666 | Nakao et al. | Aug 2013 | A1 |
| 20130228316 | Hong | Sep 2013 | A1 |
| 20150147208 | Chen | May 2015 | A1 |
| Number | Date | Country |
|---|---|---|
| 2592893 | Dec 2003 | CN |
| 1704584 | Dec 2005 | CN |
| 2851637 | Dec 2006 | CN |
| 201539387 | Aug 2010 | CN |
| 201972885 | Sep 2011 | CN |
| 202926547 | May 2013 | CN |
| 202015102573 | May 2015 | DE |
| 2497627 | Sep 2012 | EP |
| 2012219780 | Nov 2012 | JP |
| Entry |
|---|
| International Search Report, dated May 25, 2016 for corresponding International Application No. PCT/CN2015/088820. |
| Written Opinion of the ISA, dated May 18, 2016 for corresponding International Application No. PCT/CN2015/088820. |
| Number | Date | Country | |
|---|---|---|---|
| 20180238314 A1 | Aug 2018 | US |
