The present application relates to the technical field of automobile maintenance tools, in particular to a sealant bottle.
When a car is running, the tire will sometimes have abnormal conditions, such as out of gas, damage, and the like. In this case, a spare tire is usually used to replace the tire that is out of gas or damaged, or a rapid tire repair and inflation is provided to the tire.
Currently, a pneumatic tire is used in cars. When the tire is punctured, the tire does not need to be replaced. The punctured part of the tire is repaired by injecting sealant into the tire.
The sealant is a polymer compound, which is generally in liquid state and stored in a sealant bottle. During a tire repair process as mentioned above, air is first pumped into the sealant bottle, and then the sealant in the bottle is pumped out and continues to be pumped into the tire. When entering the tire, the sealant strikes and mixes with the surrounding air, and its volume increases to be in the form of foams. After the foaming sealant enters the tire, it can reach the punctured part and cover the inner wall of the tire to form a sealing film. It is ideal to use less sealant for tire repair.
JP4666613B2 discloses a sealant injection device, which comprises a reservoir for storing sealant and a mixing part outside the reservoir. Air enters the reservoir and the mixing part respectively through two branch lines. The air entering the reservoir presses the sealant into the mixing part, and the sealant pressed into the mixing part mixes with the air that directly enters the mixing part. The mixed sealant is then output to the tire and injected into the tire through a tire valve core. A valve is arranged at the beginning end of the divergence of the two branch lines to distribute the air flow to the respective branch lines. To this end, the injection device of JP4666613B2 is further provided with a controller for manual or automatic control.
One aspect of the present application is to provide a sealant bottle, which comprises: a bottle body defining an internal space for storing sealant and having a gas inlet in fluid communication with the internal space to allow gas to enter the internal space; a pipe for receiving the sealant, at least a portion of which is arranged in the internal space; and a sealant outlet communicated with the pipe; wherein the pipe defines a sealant delivery path to the sealant outlet, the pipe is further provided with a gas lead-in part on the sealant delivery path, and the gas lead-in part is configured such that gas from the internal space enters the pipe through the gas lead-in part to mix with the sealant on the sealant delivery path.
In an embodiment of the sealant bottle, the bottle body comprises a container and a cover in sealed connection with the container, wherein the gas lead-in part is arranged on one portion of the pipe inside the container and/or on another portion of the pipe inside the cover.
In an embodiment of the sealant bottle, the gas lead-in part comprises at least one eyelet arranged on the pipe and communicated with and between the internal space and inside of the pipe.
In an embodiment of the sealant bottle, the pipe has a sealant-passage section, and the at least one eyelet has a gas-passage section. The ratio of the area of the sealant-passage section to the sum of the area of the gas-passage section of the at least one eyelet is in the range of 8-89.
In an embodiment of the sealant bottle, the ratio of the area of the sealant-passage section to the sum of the area of the gas-passage section of the at least one eyelet is in the range of 32-89.
In an embodiment of the sealant bottle, when the at least one eyelet comprises one eyelet, the one eyelet is arranged on a circumferential side of the pipe; when the at least one eyelet comprises two eyelets, the two eyelets are respectively arranged on opposite circumferential sides of the pipe; when the at least one eyelet comprises more eyelets, the more eyelets are arranged around the pipe.
In an embodiment of the sealant bottle, the gas inlet and the sealant outlet are arranged on the cover, or the gas inlet is arranged on the container and the sealant outlet is arranged on the cover.
In an embodiment of the sealant bottle, the one portion of the pipe inside the container is a pipe made of flexible material, and the pipe is provided with a sealant receiver at the bottom of the bottle body to allow the sealant to enter the pipe from the bottom.
In an embodiment of the sealant bottle, the sealant bottle further comprises a feeding tube outside the bottle body, wherein the feeding tube is connected to the sealant outlet.
In the present application, sealant and gas can be mixed in the sealant bottle. The mixture of the sealant and gas is carried out through the gas lead-in part. It is found that this early and active mixing can make the volume of the sealant much larger than that of the sealant mixed at the tire or in other ways. For example, the mixture of sealant and the surrounding air at the tire can increase the volume by 30-40%. For another example, the volume can be increased by less than 10% by shaking the sealant bottle for mixing, or by mixing the sealant and the air that then presses the mixed sealant into a pipe in the bottle. In contrast, the present application can increase the volume by more than above values, and even up to more than 100%. Therefore, the sealant bottle according to the present application can turn the sealant into foam already when it reaches the injection port of the tire (usually a valve core), and the amount of the foam is considerable. Accordingly, on the other hand, it can reduce the amount of sealant used and improve the efficiency of tire repair.
The present application is both simple in structure and reliable. After the gas is pumped into the sealant bottle, the gas haing a high pressure in the sealant bottle can push the sealant into the pipe on the one hand, and can enter the pipe through the gas lead-in part on the pipe to meet and mix with the sealant during the delivery of the sealant on the other hand. Because mixing takes place in the pipe, there is no need to install additional pneumatic devices, or additional mixing components, or additional pressure control components, in the sealant bottle. Therefore, the present application has the advantages of low cost and easy manufacturing.
Other aspects and features of the present application become apparent from the following detailed description with reference to the accompanying drawings. However, it should be appreciated that the drawings are designed only for the purpose of explanation, but are not to limit the scope of the present application, which should refer to the appended claims. It should also be appreciated that the drawings are intended only to conceptually illustrate the structure and process described herein, and unless otherwise specified, it is not necessary to draw the drawings to scale.
The present application will be more fully understood by referring to the following detailed description of specific embodiments in combination with the drawings. The same reference numerals always denote the same elements in the drawings, where:
In order to help those skilled in the art to accurately understand the subject matter claimed in the present application, the specific embodiments of the present application are described in detail below in conjunction with the accompanying drawings.
The bottle body 1 further has a pipe 22 inside it, which is used to receive the sealant. The pipe 22 defines a sealant delivery path and is communicated with the outlet 18, so that the sealant can be delivered to the outlet 18. Therefore, the outlet is a sealant outlet. The shape of the pipe 22 determines the sealant delivery path. As shown in the figure, the pipe 22 can be bent, and its beginning end is positioned against the wall 36 of the internal space 12. The beginning end of the pipe 22 is close to the bottom 34 of the bottle body 1, and is roughly between the bottom 34 of the bottle body 1 and the wall 36 of the internal space 12. The sealant can enter the pipe 22 from the bottom 34 of the bottle body 1. Specifically, it enters the pipe through the beginning end of the pipe 22. In the embodiment shown in the figure, a sealant receiver 24 is arranged at the beginning end of the pipe 22 to help more sealant to enter the pipe 22. The sealant receiver 24 can be a one-way valve, which only allows the sealant to enter the pipe 22 from the internal space 12, but does not allow reverse flow. The sealant receiver 24 can also be a positioning device to assist the beginning end of the pipe to position against the wall 36 of the internal space 12. These configurations help the sealant to enter the pipe 22. In addition, the shape of the sealant receiving part 24 is not limited to the form shown in the figure.
Further, the pipe 22 is provided with a gas lead-in part 26, which is on the sealant delivery path. The gas from the internal space 12 enters the pipe 22 through the gas lead-in part 26 and mixes with the sealant on the sealant delivery path.
Here, “on the sealant delivery path” can also be along the sealant delivery path. During the delivery of the sealant, the gas permeates, mixes with the sealant and flows to the outlet.
The arrangement of the gas lead-in part 26 provides the possibility of premixing the sealant. The gas is pumped into the bottle body 1, and a certain pressure is accumulated in the internal space 12, so that the air is pressed into the pipe 22 through the gas lead-in part 26. This manner of providing gas in an active manner not only increases the amount of air involved in mixing, but also omits additional pneumatic devices. In the embodiment shown in
Referring again to
Still further, the gas lead-in part 26 comprises at least one eyelet, which communicates with and between the internal space 12 and the interior of the pipe 22. There can be one eyelet, or there can be two eyelets as shown in
The eyelet has a gas-passage section, i.e., the size of the eyelet. The pipe 22 has a sealant-passage section, i.e., the cross section of the pipe 22. The size of the eyelet can be configured such that the ratio of the area of the sealant-passage section to the sum of the area of the gas-passage section is in the range of 8-89, preferably in the range of 32-89. Table 1 shows a plurality of sets of experimental data, where two eyelets are arranged. The gas-passage section of the eyelet depends on the diameter of the eyelet, which varies from 0 to 2 mm. When the size of the eyelet is 0, it can be considered that there is no gas lead-in part on the pipe 22. The size of the pipe 22 is unchanged along its entire length, with a diameter of 4 mm and an area of sealant-passage section of 12.57 mm2. It can be seen that when the ratio of the area of the sealant-passage section to the sum of the areas of the gas-passage sections is in the range of 8-89, the volume of the sealant after mixing will increase compared with the volume of the sealant before mixing. In particular, when the ratio of the above areas is in the range of 32-89, the volume of the sealant after mixing can increase to more than twice. This indicates that a large amount of sealant foam for tire repair is generated. It can also be seen that when the size of the eyelet is too large, the amount of sealant foam generated will be affected.
When in use, the gas inlet 16 of the sealant bottle is connected to the air compressor through a tube. The sealant outlet 18 of the sealant bottle is connected with a feeding tube not shown.
Although the specific embodiments of the present application have been illustrated and described in detail to explain the principle of the present application, it should be understood, however, that the present application can be implemented in other ways without departing from the principle.
Filing Document | Filing Date | Country | Kind |
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PCT/CN2020/101020 | 7/9/2020 | WO |