CN111845212A

CN111845212A - Automobile emergency reaction inner tube

Info

Publication number: CN111845212A
Application number: CN201910364643.7A
Authority: CN
Inventors: 唐子龙; 徐露仙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-10-30

Abstract

The invention discloses an automobile emergency reaction inner tube which comprises a tube body, a trigger mechanism and an inflation mechanism, wherein the tube body, the trigger mechanism and the inflation mechanism are all arranged in a vacuum tube, the tube body is sleeved on the outer surface of a wheel hub, and an inflation port of the inflation mechanism is communicated with the tube body; the triggering mechanism comprises a telescopic rod, the pressing end of the telescopic rod faces the vacuum tire along the radial direction, and the pressing end extends out of the maximum profile edge of the wheel hub, and the triggering end of the telescopic rod triggers the inflating mechanism and enables the tire body to be inflated and filled in the vacuum tire by squeezing the telescopic rod. The tire puncture preventing device makes up the defect that the vacuum tire can not be continuously used after being punctured, and reduces the possibility of traffic accidents.

Description

Automobile emergency reaction inner tube

Technical Field

The invention relates to the technical field of automobile tires, in particular to an automobile emergency reaction inner tube.

Background

The vacuum tire is a pneumatic tire without an inner tube, also called a low-pressure tire or a pneumatic tire, and has high elasticity and wear resistance, good adhesive force and heat dissipation performance.

In order to avoid rapid air leakage after the vacuum tire is punctured, automatic tire repair liquid is usually filled in the vacuum tire, and the automatic tire repair liquid is solidified at a leak hole quickly when meeting air solidification, so that the leak hole is automatically blocked.

In the above case, although the leak is small, the automatic tire repair liquid is not useful even when a tire burst occurs or the leak is large, and the large leak cannot be repaired. In this situation, the vacuum tire can be quickly deflated, the tire pressure is insufficient, the automobile cannot continue to run, and the tire can be replaced or rescued in situ. However, the tire burst is often unpredictable, and if the tire burst occurs on an expressway or a road section with traffic jam, the vehicle is stopped in the middle of the road. The rear-end collision is very easy to happen on the expressway, and serious traffic accidents are caused; when the road is in a traffic jam road section, the traffic jam and even paralysis are caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an automobile emergency reaction inner tube, which is used for overcoming the defect that a vacuum tube cannot be continuously used after being burst, and reducing the possibility of traffic accidents.

The invention provides an automobile emergency reaction inner tube, which comprises a tube body, a triggering mechanism and an inflating mechanism, wherein the triggering mechanism is arranged on the tube body; the tire body, the triggering mechanism and the inflating mechanism are all arranged inside the vacuum tire, and the tire body is sleeved on the outer surface of the hub and the inflating port of the inflating mechanism is communicated with the tire body;

the triggering mechanism comprises a telescopic rod, the pressing end of the telescopic rod faces the vacuum tire along the radial direction, and the pressing end extends out of the maximum profile edge of the wheel hub, and the triggering end of the telescopic rod triggers the inflating mechanism and enables the tire body to be inflated and filled in the vacuum tire by squeezing the telescopic rod.

The invention has the beneficial effects that:

when the vacuum tire is punctured or the tire is burst and cannot be filled and repaired through the automatic tire repair liquid, the tire pressure of the vacuum tire is rapidly reduced, and the hub is contacted with the ground after the vacuum tire is shriveled. Because the pressing end of the telescopic rod extends out of the maximum outline edge of the hub, the pressing end is contacted with the ground while the hub is contacted with the ground. The telescopic rod is retracted after being extruded, the other end (namely the triggering end) of the telescopic rod triggers the inflating mechanism, the inflating mechanism instantly generates gas and inflates the tire body, and the tire body is inflated to be filled in the vacuum tire, so that a quick spare tire is formed. The spare tire can support a vehicle to continuously run for a distance enough to support the vehicle to run to a safe area, so that the defect that the vacuum tire cannot be continuously used after being burst is overcome, and the possibility of traffic accidents is reduced.

Preferably, the trigger mechanism further comprises a fixed cylinder sleeved outside the telescopic rod, and a spring is arranged inside the fixed cylinder and used for extending the pressing end of the telescopic rod out of the fixed cylinder.

The telescopic rod is fixedly connected with a fixed disc, a ring body is arranged in the fixed cylinder, and the telescopic rod penetrates through the ring body. And the spring is compressed between the fixed disc and the annular body, so that the pressing end of the telescopic rod is ejected out of the fixed cylinder through the spring.

Preferably, the carcass is provided with a plurality of through holes along the radial direction, and the through holes are distributed at equal intervals along the circumferential direction.

Preferably, one of the fixed cylinders is fixed in each through hole, so that all the fixed cylinders are radially distributed around the hub.

Twelve fixed cylinders and telescopic rods are arranged in total, and as long as one telescopic rod is compressed, the triggering mechanism can be triggered, so that the inflating mechanism instantly generates gas and inflates the gas into a tire body.

Preferably, the inflation mechanism comprises an annular outer shell, a combustion cylinder, a trigger and a power supply, wherein the combustion cylinder, the trigger and the power supply are arranged inside the outer shell, the outer shell is positioned between the tire body and the hub, and the tire body is fixed on the outer surface of the outer shell;

the first combustion cavity of the combustion cylinder is communicated with the inner cavity of the tire body, and the side wall of the combustion cylinder protrudes outwards to form a second combustion cavity; the trigger is fixedly connected with the bulge, and the ignition end of the trigger extends into the second combustion chamber; the trigger is electrically connected with a power supply.

During installation of the apparatus, the first combustion chamber is filled with a gas generating agent and the second combustion chamber is filled with a pilot agent. When the inflating mechanism is triggered by the trigger mechanism, the trigger heats the igniting agent in the second combustion chamber, the igniting agent then ignites the gas generating agent, the gas generating agent generates a certain amount of gas after combustion, and the gas is filled in the inner chamber of the tire body to complete automatic and rapid inflation.

Preferably, the trigger mechanism further comprises a contact switch installed in the housing, the contact switch comprises a mounting seat, a first elastic sheet and a second elastic sheet, the mounting seat is fixed in the housing, the first elastic sheet and the second elastic sheet are both fixed on the mounting seat, and the contact portion of the first elastic sheet is located right above the contact portion of the second elastic sheet.

Preferably, one contact switch is arranged right below each through hole, and the triggering ends of all the telescopic rods penetrate through the shell and are opposite to the first elastic sheets of the corresponding contact switches; all the contact switches are connected in parallel and then connected in series with the trigger and the power supply.

The telescopic link is by the withdrawal in the fixed cylinder after the extrusion, and the trigger end will extrude first shell fragment and contact with the second shell fragment to make the trigger switch on the power. The design of the triggering mechanism is simple and effective, the telescopic rods and the contact switches form one-to-one correspondence, only one contact switch is conducted to trigger the inflating mechanism, the smooth activation of the device under the condition of tire burst is ensured, and the safety performance is improved.

Preferably, two combustion cylinders and two triggers are arranged in the shell, wherein one combustion cylinder and one trigger are positioned on one side of the shell, and the other combustion cylinder and the other trigger are positioned on the other side of the shell; all the contact switches are connected in parallel and then connected in series with two triggers and a power supply.

The two combustion cylinders and the trigger can realize inflation of the tire body more quickly, inflation efficiency is improved, and maintenance time is further shortened.

Preferably, a heat insulation pad is arranged between the shell and the hub.

Since the ignition agent and the gas generating agent may be spontaneously ignited at a high temperature, the temperature of the wheel hub may be increased during a long-term driving of the vehicle. The heat of the wheel hub is prevented from igniting the ignition agent and the gas generating agent through the heat insulation pad.

Preferably, the telescopic link is equipped with the spacing portion of conical, the inner wall of a fixed section of thick bamboo be equipped with the barb of spacing portion adaptation for prevent that the telescopic link from reseing after descending.

The telescopic link prevents that the telescopic link from reseing after retracting through spacing portion and barb cooperation to guaranteed that trigger mechanism makes the circuit be in the on-state after being triggered always, the ignition of igniting the agent is in order to realize inflating of matrix fast.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of the apparatus mounted on a hub and a vacuum tire;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic view of the vacuum tire of FIG. 2 shown after it has been hidden;

FIG. 4 is a cross-sectional view A-A of FIG. 2;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is an enlarged view at C of FIG. 5;

FIG. 7 is a schematic view of the inflated carcass of FIG. 4;

FIG. 8 is an enlarged view taken at D in FIG. 7;

FIG. 9 is a schematic structural view of the carcass in this embodiment;

fig. 10 is a right side view of fig. 9.

In the attached drawings, a vacuum tire 1, a hub 2, a tire body 3, a telescopic rod 4, a pressing end 5, a triggering end 6, a fixed cylinder 7, a spring 8, a fixed disc 9, a ring body 10, a through hole 11, a shell 12, a combustion cylinder 13, a trigger 14, a power supply 15, a first combustion chamber 16, a second combustion chamber 17, a igniting agent 18, a gas generating agent 19, a heat insulation pad 20, a plug body 21, a mounting seat 22, a first elastic sheet 23, a second elastic sheet 24, a limiting part 25 and barbs 26.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

As shown in fig. 1 and 2, the present embodiment provides an automobile emergency reaction inner tube, and the present device is suitable for an existing vacuum tire 1, and is specifically installed on an outer surface of a hub 2 and located inside the vacuum tire 1, where the outer surface of the hub 2 refers to a surface of the hub 2 opposite to the vacuum tire 1. The specific structure of the equipment is as follows:

including matrix 3, trigger mechanism and inflation mechanism, matrix 3, trigger mechanism and inflation mechanism all install in the inside of vacuum child 1 to matrix 3 cover is established at the surface of wheel hub 2 and is aerifyd the inflation inlet of mechanism and be linked together with matrix 3. The tyre body 3 is annular, twelve radial through holes 11 are arranged on the tyre body 3, and the twelve through holes 11 are distributed at equal intervals along the circumferential direction. After the carcass 3 is expanded, the portions of the through holes 11 are maintained as they are, while the other portions are expanded, as shown in fig. 9 and 10.

As shown in fig. 3, the triggering mechanism comprises a telescopic rod 4, the pressing end 5 of the telescopic rod 4 faces the vacuum tire 1 along the radial direction and the pressing end 5 extends out of the maximum profile edge of the hub 2. For example, when the telescopic rod 4 is vertically upward, the telescopic rod 4 is not compressed, and the pressing end 5 thereof is higher than the edge of the hub 2. Trigger mechanism still establishes including the cover fixed cylinder 7 outside telescopic link 4, the inside of fixed cylinder 7 is equipped with spring 8 for stretch out fixed cylinder 7 with the pressing end 5 of telescopic link 4. The telescopic rod 4 is fixedly connected with a fixed disc 9, a ring body 10 is arranged in the fixed cylinder 7, and the telescopic rod 4 penetrates through the ring body 10. And the spring 8 is compressed between the fixed disc 9 and the circular ring 10, so that the pressing end 5 of the telescopic rod 4 is pushed out of the fixed cylinder 7 by the spring 8.

The outer side wall of the fixed cylinder 7 is fixedly connected with the through holes 11 of the tire body 3, and one fixed cylinder 7 is fixed in each through hole 11, so that all the fixed cylinders 7 are radially distributed around the hub 2. A total of twelve fixed cylinders 7 and telescopic rods 4 are arranged, and each telescopic rod 4 is compressed to trigger the trigger mechanism. The specific structure of the inflation mechanism is as follows:

as shown in fig. 4 to 8, the inflation mechanism includes a ring-shaped casing 12, and a combustion cylinder 13, a trigger 14 and a power supply 15 installed inside the casing 12, the casing 12 is located between the tire casing 3 and the hub 2, and the tire casing 3 is fixed on the outer surface of the casing 12. The housing 12 is made of a hard material to prevent the housing 12 from collapsing. The power supply 15 is a lithium battery or other storage battery. The first combustion chamber 16 of the combustion cylinder 13 is communicated with the inner cavity of the tire body 3, and the side wall of the combustion cylinder 13 protrudes outwards to form a second combustion chamber 17. The trigger 14 is fixedly connected to the projection and the firing end of the trigger 14 extends into the second combustion chamber 17. The firing tip here refers to the heater, and the trigger 14 is electrically connected to the power source 15. When the trigger 14 is energized, the heater of the trigger instantaneously heats. During installation of the apparatus, the first combustion chamber 16 is filled with a gas generating agent 19, and the second combustion chamber 17 is filled with a pilot agent 18. When the inflating mechanism is triggered by the trigger mechanism, the trigger 14 heats the ignition agent 18 in the second combustion cavity 17, the ignition agent 18 ignites the gas generating agent 19, the gas generating agent 19 generates a certain amount of gas after combustion, and the gas is inflated into the inner cavity of the tire body 3 to complete automatic quick inflation. Furthermore, a plug 21 is provided between the first combustion chamber 16 and the inner cavity of the carcass 3, which plug 21 prevents the gas generating agent 19 from entering the carcass 3 without being ignited; when the gas generating agent 19 is ignited, the plug body 21 is flushed open, and the plug body 21 remains in the inner tire without affecting the inflation of the carcass 3.

Since the ignition agent 18 and the gas generating agent 19 may be spontaneously ignited at a high temperature, the temperature of the wheel hub 2 may be increased during a long period of travel of the vehicle. Heat will also be generated during braking of the vehicle and this heat will also be transferred to the hub 2. Therefore, the heat insulating mat 20 is provided between the housing 12 and the hub 2, and the heat of the hub 2 is prevented from igniting the ignition agent 18 and the gas generating agent 19 by the heat insulating mat 20.

The specific principle of triggering the inflating mechanism by the triggering mechanism is as follows:

the trigger mechanism further comprises a contact switch arranged in the shell 12, the contact switch comprises a mounting seat 22, a first elastic sheet 23 and a second elastic sheet 24, the mounting seat 22 is fixed in the shell 12, the first elastic sheet 23 and the second elastic sheet 24 are both fixed on the mounting seat 22, and the contact part of the first elastic sheet 23 is positioned right above the contact part of the second elastic sheet 24. The contact switch is arranged right below each through hole 11, and the triggering ends 6 of all the telescopic rods 4 penetrate through the shell 12 and are opposite to the first elastic sheets 23 of the corresponding contact switches; all contact switches are connected in parallel and then connected in series with the trigger 14 and the power supply 15. The telescopic rod 4 retracts into the fixed cylinder 7 after being squeezed, and the trigger end 6 squeezes the first elastic sheet 23 and contacts the second elastic sheet 24, so that the trigger 14 is powered on by the power supply 15. The design of the triggering mechanism is simple and effective, the telescopic rods 4 and the contact switches form one-to-one correspondence, only one contact switch is conducted to trigger the inflating mechanism, the smooth activation of the device under the condition of tire burst is ensured, and the safety performance is improved.

After the telescopic rod 4 is squeezed and retracted into the fixed cylinder 7, a short time, which is several seconds, is required for the ignition of the ignition agent 18 due to the trigger 14. However, it is necessary to ensure that the trigger 14 and the power supply 15 are always on during this time, otherwise the ignition time will be prolonged or even impossible. Therefore, the trigger 14 and the power supply 15 are always conducted, so that the telescopic rod 4 is always in a state that the telescopic rod is squeezed and contracted and cannot be reset. The method is realized by the following structure:

as shown in fig. 5, the telescopic rod 4 is provided with a conical limiting portion 25, and the inner wall of the fixed cylinder 7 is provided with a barb 26 adapted to the limiting portion 25, so as to prevent the telescopic rod 4 from resetting after descending. After the telescopic link 4 is inserted into the barb 26 through the limiting part 25, the limiting part 25 is clamped at the barb 26 to prevent the telescopic link 4 from resetting after retracting, so that the circuit is always in a conducting state after the triggering mechanism is triggered, and the ignition agent 18 is rapidly ignited to realize inflation of the tire body 3.

In addition, in order to complete the rapid inflation of the tire body 3 in the first time after the tire burst occurs, two combustion cylinders 13 and two triggers 14 are arranged inside the casing 12, wherein one combustion cylinder 13 and one trigger 14 are positioned on one side of the casing 12, and the other combustion cylinder 13 and the other trigger 14 are positioned on the other side of the casing 12; all contact switches are connected in parallel and then connected in series with two triggers 14 and a power supply 15. The two combustion cylinders 13 and the trigger 14 can realize the inflation of the tire body 3 more quickly, the inflation efficiency is improved, and the maintenance time is further shortened. The total amount of gas generated by the gas generating agent 19 in the two combustion cylinders 13 just expands the inner tube to the maximum state. The amount of generant produced is dependent upon the size of the carcass 3 and experimental testing. In this embodiment, the main component of the gas generating agent 19 is sodium azide, and the chemical equation of the reaction is:

2NaN3+CuO→Na2O+3N2+Cu；

16NaN3+3MoS2+2S→8Na2S+3Mo+24N2；

10NaN3+2KNO3+SiO2→5Na2O·K2O·5SiO2+16N2。

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides an automobile emergency reaction inner tube, includes the matrix, its characterized in that: the device also comprises a trigger mechanism and an inflation mechanism; the tire body, the triggering mechanism and the inflating mechanism are all arranged inside the vacuum tire, and the tire body is sleeved on the outer surface of the hub and the inflating port of the inflating mechanism is communicated with the tire body;

2. The automobile emergency reaction inner tube according to claim 1, characterized in that: the trigger mechanism is characterized by further comprising a fixed cylinder arranged outside the telescopic rod in a sleeved mode, wherein a spring is arranged inside the fixed cylinder and used for extending the pressing end of the telescopic rod out of the fixed cylinder.

3. The automobile emergency reaction inner tube according to claim 2, characterized in that: the tire body is provided with a plurality of radial through holes which are distributed at equal intervals along the circumferential direction.

4. The automobile emergency reaction inner tube according to claim 3, wherein: and one fixed cylinder is fixed in each through hole, so that all the fixed cylinders are radially distributed around the hub.

5. The automobile emergency reaction inner tube according to claim 4, wherein: the inflation mechanism comprises an annular shell, a combustion cylinder, a trigger and a power supply, wherein the combustion cylinder, the trigger and the power supply are arranged inside the shell;

6. The automobile emergency reaction inner tube according to claim 5, wherein: the trigger mechanism further comprises a contact switch arranged in the shell, the contact switch comprises a mounting seat, a first elastic sheet and a second elastic sheet, the mounting seat is fixed in the shell, the first elastic sheet and the second elastic sheet are both fixed on the mounting seat, and the contact part of the first elastic sheet is positioned right above the contact part of the second elastic sheet.

7. The automobile emergency reaction inner tube according to claim 6, wherein: the contact switch is arranged right below each through hole, and the triggering ends of all the telescopic rods penetrate through the shell and are opposite to the first elastic sheets of the corresponding contact switches; all the contact switches are connected in parallel and then connected in series with the trigger and the power supply.

8. The automobile emergency reaction inner tube according to claim 7, wherein: two combustion cylinders and two triggers are arranged in the shell, wherein one combustion cylinder and one trigger are positioned on one side of the shell, and the other combustion cylinder and the other trigger are positioned on the other side of the shell; all the contact switches are connected in parallel and then connected in series with two triggers and a power supply.

9. The automobile emergency reaction inner tube according to claim 5, wherein: and a heat insulation pad is arranged between the shell and the hub.

10. The automobile emergency reaction inner tube according to claim 2, characterized in that: the telescopic link is equipped with the spacing portion of conical, the inner wall of a fixed section of thick bamboo be equipped with the barb of spacing portion adaptation for prevent that the telescopic link from restoreing after descending.