WO2024103303A1

WO2024103303A1 - Portable tire repairing tool

Info

Publication number: WO2024103303A1
Application number: PCT/CN2022/132328
Authority: WO
Inventors: 苏清林
Original assignee: 昆山富洛汽车配件有限公司
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2024-05-23

Abstract

The utility model provides a portable tire repairing tool, comprising a gas cylinder connector and a hollow protective shell, wherein a butt joint groove A is formed in the right end of the gas cylinder connector, and a butt joint groove B is formed in the left end of the gas cylinder connector, the butt joint groove B communicates with the butt joint groove A by means of a through hole formed in the middle, the right end of the protective shell is threadedly connected to an exhaust connector, and the left end of the protective shell is threadedly connected to an end cover, the right end of the end cover is threadedly connected to a repairing fork extending into an inner cavity of the protective shell, the right end of the exhaust connector is threadedly connected to a piston sleeve, the right end of the piston sleeve extends into the butt joint groove B, and a piston rod is nested in the piston sleeve, the right end of the piston rod penetrates out of the right end of the piston sleeve, a hollow piercing head is placed in the butt joint groove A, and the left end of the piercing head penetrates through the through hole to be fixedly connected to the right end of the piston rod. According to the utility model, inflation and repair are integrated, a tool does not need to be replaced in the process, the tire repair process is simplified, and rapid repair of the tire is achieved.

Description

Portable tire repair tool

Technical Field

The utility model belongs to the technical field of auto parts tools, in particular to a portable tire repair tool.

Background technique

A repair fork is an emergency tool used to repair a tire. The repair fork is equipped with a fork-shaped tip to sandwich the rubber strip into the tire.

When repairing a tire, first mark the punctured location of the tire, insert the repair fork carrying the rubber strip into the tire, make sure the rubber strip is inserted to 2/3 of the length, rotate the repair fork 360 degrees and then pull out the repair fork. After the operation is completed, inflate the tire, apply soapy water around the rubber strip, check for any air leaks, and finally use a blade to cut off the rubber strip that is exposed outside the tire to ensure that the outside of the tire is flat.

Filling the damaged part of the tire with rubber strips is only the first step of the repair. The second step is to inflate the tire. As for the inflation tool, an air pump is often used for inflation, which is time-consuming and laborious. At least two sets of independent tools are required for repair and inflation, and the process is cumbersome and inconvenient. Moreover, the repair fork is shaped like a screwdriver. It is easy to get stuck in the corner during the bumps of the vehicle and is difficult to find, which brings troubles to the repair process.

In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it.

Technical Solutions

In view of the defects pointed out in the background technology, the purpose of the utility model is to provide a portable tire repair tool that combines repairing and inflation in one, simplifies the repairing steps, and improves the convenience of repairing.

To achieve the above purpose, the technical solution of the utility model is implemented as follows:

A portable tire repair tool comprises a gas cylinder connector and a hollow protective shell, wherein a docking groove A is arranged at the right end of the gas cylinder connector, a docking groove B is arranged at the left end of the gas cylinder connector, the docking groove B is connected with the docking groove A via a through hole opened in the middle, an exhaust joint is threadedly connected to the right end of the protective shell, an end cover is threadedly connected to the left end of the protective shell, a repair fork extending into the inner cavity of the protective shell is threadedly connected to the right end of the end cover, a piston sleeve is threadedly connected to the right end of the exhaust joint, the right end of the piston sleeve extends into the docking groove B, a piston rod is nested inside the piston sleeve, the right end of the piston rod passes through the right end of the piston sleeve, a hollow puncture head is placed in the docking groove A, and the left end of the puncture head passes through the through hole and is connected and fixed to the right end of the piston rod.

As a preferred technical solution, a thread groove is provided at the right end of the piston rod, an axially extending non-through airway A is opened in the middle of the thread groove, the left end of the puncture head is screwed into the thread groove, the hollow channel of the puncture head faces the airway A, and two groups of air holes A connected to the airway A are provided on the left circumference of the piston rod.

As a preferred technical solution, a docking groove C for connecting the exhaust joint is provided on the left side of the piston sleeve, and a docking groove D connected to the docking groove C is provided on the right side of the piston sleeve. The inner diameter of the docking groove D is smaller than the inner diameter of the docking groove C, and the inner diameter of the docking groove D is slightly larger than the outer diameter of the piston rod. The right end of the piston rod passes through the piston sleeve along the docking groove D, and the left end of the piston rod is provided with a base with a diameter larger than the inner diameter of the docking groove D.

As a preferred technical solution, a docking groove E is provided at the left end of the exhaust joint, and the right end of the exhaust joint extends into the docking groove C. An axially extending non-through airway B is opened in the middle of the docking groove E, and an air hole B connecting to the airway B is provided on the right side circumference of the exhaust joint.

As a preferred technical solution, the inner wall of the docking groove D is provided with two annular grooves, and sealing rings are embedded in the grooves.

As a preferred technical solution, a spring is arranged in the piston sleeve, and the spring is pressed between the piston rod and the exhaust joint.

After adopting the above technical solution, the beneficial effects of the utility model are:

When repairing, unscrew the end cover of the protective shell, pull out the repair fork, and then repair can be carried out. The repair fork is protected by the protective shell when stored and is not easily damaged by foreign objects. In addition, the protective shell is large in size and is not easy to get stuck in the gap in the corner. The target is conspicuous and easy to find. When inflating, unscrew the protective shell to expose the exhaust joint, align the exhaust joint and screw it into the valve of the tire, and insert it into the docking groove A of the pre-prepared gas cylinder. As the gas cylinder is screwed in, the puncture head pierces the protective cover of the gas cylinder, and the compressed air in the gas cylinder is introduced into the airway A of the piston rod. At this time, the gas cylinder is pushed, the spring is compressed, and the air hole 15 of the piston rod leaks out. The compressed air is finally introduced into the airway B, and the tire is inflated. With the help of the spring, the output of the compressed air in the gas cylinder can be controlled, which is simple and convenient. The utility model integrates inflation and repairing in one, and there is no need to change tools during the process, which simplifies the tire repair process and realizes the rapid repair of the tire.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a schematic structural diagram of the utility model.

FIG. 2 is a cross-sectional view of the present utility model.

FIG. 3 is a schematic structural diagram of a piston rod.

FIG. 4 is a schematic structural diagram of a piston sleeve.

Markings in the figure: 1. gas cylinder connecting head, 2. puncture head, 3. piston rod, 4. piston sleeve, 5. exhaust joint, 6. protective shell, 7. repair fork, 8. end cover, 9. spring, 10. docking groove A, 11. through hole, 12. docking groove B, 13. threaded groove, 14. airway A, 15. air hole A, 16. docking groove C, 17. docking groove D, 18. groove, 19. sealing ring, 20. bottom support, 21. airway B, 22. air hole B, 23. docking groove E.

Embodiments of the present invention

The features and exemplary embodiments of various aspects of the utility model will be described in detail below. In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the utility model and are not configured to limit the utility model. For those skilled in the art, the utility model can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the utility model by showing examples of the utility model.

The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the utility model. In the description of the utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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 directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

As shown in Figures 1 to 4, a portable tire repair tool includes a gas cylinder connector 1 and a hollow protective shell 6. A docking groove A10 is provided at the right end of the gas cylinder connector 1, and a gas cylinder filled with compressed gas is connected to the docking groove A10. A docking groove B12 is provided at the left end of the gas cylinder connector 1, and the docking groove B12 is connected to the docking groove A10 through a through hole 11 opened in the middle. An exhaust joint 5 is threadedly connected to the right end of the protective shell 6, an end cover 8 is threadedly connected to the left end of the protective shell 6, and a repair fork 7 extending into the inner cavity of the protective shell 6 is threadedly connected to the right end of the end cover 8. When repairing, unscrew the end cover 8 on the left side of the protective shell 6 to pull out the repair fork 7. The repair fork 7 is protected by the protective shell 6 when stored and is not easily damaged by foreign objects. In addition, the protective shell 6 is large in size and is not easy to get stuck in the gap in the corner. The target is conspicuous and easy to find.

The right end of the exhaust joint 5 is threadedly connected to the piston sleeve 4, and the right end of the piston sleeve 4 extends into the docking groove B12. The piston sleeve 4 is nested with the piston rod 3, and the right end of the piston rod 3 passes through the right end of the piston sleeve 4. A thread groove 13 is provided at the right end of the piston rod 3, and an axially extending non-through airway A14 is provided in the middle of the thread groove 13. Two groups of air holes A15 connected to the airway A14 are provided on the left side of the piston rod 3, and the angle between the central axes of the two groups of air holes A15 is 180 degrees. A hollow puncture head 2 is placed in the docking groove A10, and the left end of the puncture head 2 passes through the through hole 11 and is screwed into the thread groove 13 at the right end of the piston rod 3, so that the gas cylinder connector 1, the puncture head 2, and the piston rod 3 are connected as a whole. The hollow channel of the puncture head 2 is directly opposite to the airway A14, so that the compressed gas of the gas cylinder can be accurately introduced into the piston rod 3.

A docking groove C16 for connecting to the exhaust joint 5 is provided on the left side of the piston sleeve 4, and a docking groove D17 connected to the docking groove C16 is provided on the right side of the piston sleeve 4. The inner diameter of the docking groove D17 is smaller than the inner diameter of the docking groove C16, and the right end of the piston rod 3 passes through the piston sleeve 4 along the docking groove D17. A base support 20 with a diameter larger than the inner diameter of the docking groove D17 is provided on the left end of the piston rod 3, so that the right end of the piston rod 3 always stays in the piston sleeve 4. The outer diameter of the base support 20 is slightly smaller than the inner diameter of the piston sleeve 4, and the inner diameter of the docking groove D17 is slightly larger than the outer diameter of the piston rod 3, which plays a guiding role in the movement of the piston rod 3 in the piston sleeve 4.

The left end of the exhaust connector 5 is provided with a docking groove E23, and the right end of the exhaust connector 5 extends into the docking groove C16. An axially extending non-through air passage B21 is provided in the middle of the docking groove E23, and an air hole B22 connected to the air passage B21 is provided on the right peripheral surface of the exhaust connector 5. A spring 9 is provided in the piston sleeve 4, and the spring 9 is resting between the base 20 and the exhaust connector 5. Two annular grooves 18 are provided on the inner wall of the docking groove D17, and a sealing ring 19 is embedded in the groove 18. Under normal conditions, due to the reaction force of the spring 9, the piston rod 3 is supported and prevented from moving rightward. At this time, the sealing ring 19 just blocks the air hole A15 to block the conduction of the compressed gas.

When repairing a tire, mark the punctured position of the tire, unscrew the end cap 8 on the left side of the protective shell 6, pull out the repair fork 7, hold the end cap 8, place the rubber strip in the fork-shaped structure at the front end of the repair fork 7, hold the protective shell 6 and insert the rubber strip at the front end of the repair fork 7 into the tire to complete the repair. When inflating, unscrew the protective shell 6 to expose the exhaust connector 5, align the exhaust connector 5 with and screw it into the valve of the tire, and insert it into the docking groove A10 of the prepared gas cylinder. As the gas cylinder is gradually screwed in, the puncture head 2 will pierce the protective cover of the gas cylinder, and the compressed air in the gas cylinder will be introduced into the airway A14 of the piston rod 3 through the hollow channel of the puncture head 2. Due to the reaction force of the spring 9, the piston rod 3 is supported and prevented from moving rightward, and the sealing ring 19 just blocks the air hole A15 to block the conduction of the compressed gas. When the gas cylinder is pushed, the spring 9 is compressed, the piston rod moves to the left and leaks out of the air hole 15, the compressed air enters the cavity of the piston sleeve 4, and is finally introduced into the air passage B21 through the air hole B22, so that the tire can be inflated.

According to the embodiments of the utility model as described above, these embodiments do not describe all technical details in detail, nor do they limit the utility model to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can make good use of the utility model and the modified use based on the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

A portable tire repair tool, characterized in that it comprises a gas cylinder connector (1) and a hollow protective shell (6), wherein the right end of the gas cylinder connector (1) is provided with a docking groove A (10), and the left end of the gas cylinder connector (1) is provided with a docking groove B (12), wherein the docking groove B (12) is connected to the docking groove A (10) via a through hole (11) provided in the middle, the right end of the protective shell (6) is threadedly connected to an exhaust joint (5), and the left end of the protective shell (6) is threadedly connected to an end cap (8), and the end cap (8) is threadedly connected to the end cap. The right end of the cover (8) is threadedly connected to a repair fork (7) extending into the inner cavity of the protective shell (6); the right end of the exhaust joint (5) is threadedly connected to a piston sleeve (4); the right end of the piston sleeve (4) extends into the docking groove B (12); a piston rod (3) is nested inside the piston sleeve (4); the right end of the piston rod (3) passes through the right end of the piston sleeve (4); a hollow piercing head (2) is placed in the docking groove A (10); the left end of the piercing head (2) passes through the through hole (11) and is connected and fixed to the right end of the piston rod (3).
A portable tire repair tool according to claim 1, characterized in that: a thread groove (13) is provided at the right end of the piston rod (3), an axially extending non-through air passage A (14) is provided in the middle of the thread groove (13), the left end of the puncturing head (2) is screwed into the thread groove (13), the hollow channel of the puncturing head (2) faces the air passage A (14), and two groups of air holes A (15) connected to the air passage A (14) are provided on the left circumference of the piston rod (3).
A portable tire repair tool according to claim 2, characterized in that: a docking groove C (16) for connecting to an exhaust joint (5) is provided on the left side of the piston sleeve (4), a docking groove D (17) communicating with the docking groove C (16) is provided on the right side of the piston sleeve (4), the inner diameter of the docking groove D (17) is smaller than the inner diameter of the docking groove C (16), and the inner diameter of the docking groove D (17) is slightly larger than the outer diameter of the piston rod (3), the right end of the piston rod (3) passes through the piston sleeve (4) along the docking groove D (17), and the left end of the piston rod (3) is provided with a base (20) having a diameter larger than the inner diameter of the docking groove D (17).
A portable tire repair tool according to claim 3, characterized in that: a docking groove E (23) is provided at the left end of the exhaust joint (5), the right end of the exhaust joint (5) extends into the docking groove C (16), an axially extending non-through air passage B (21) is provided in the middle of the docking groove E (23), and an air hole B (22) connected to the air passage B (21) is provided on the right peripheral surface of the exhaust joint (5).
The portable tire repair tool according to claim 3 is characterized in that: the inner wall of the docking groove D (17) is provided with two annular grooves (18), and the grooves (18) are embedded with sealing rings (19).
The portable tire repair tool according to claim 1, characterized in that a spring (9) is arranged inside the piston sleeve (4), and the spring (9) abuts between the piston rod (3) and the exhaust joint (5).