Bicycle French inflating valve extension nozzle capable of displaying tire pressure

Abstract

The utility model provides a bicycle French inflating valve extension nozzle capable of displaying tire pressure, and relates to the technical field of tire pressure monitoring, the bicycle French inflating valve extension nozzle comprises a shell main body, a mounting cavity is arranged in the shell main body and close to the right side, and a rubber expansion leather cup is arranged in the mounting cavity and close to the top. When the center of the rubber expansion leather cup protrudes and downwards extrudes the first spring cover, the first spring cover downwards extrudes the spring body under the action of extrusion force, then the first spring cover gradually moves downwards and covers the second spring cover, and when the second spring cover is completely covered with the first spring cover, red is not displayed, and green is displayed. When the air pressure in the tire is insufficient, the elastic force of the spring body can jack up and reset the first spring cover, the second spring cover is exposed, the color of the second spring cover is red, the red second spring cover can be clearly observed through the fixed shell, and the air pressure is insufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of tire pressure monitoring, in particular to an extended nozzle of a bicycle Presta valve nozzle capable of displaying tire pressure. Background Art

[0002] Tire pressure, strictly speaking, refers to the pressure of the air inside the tire. Now many tires are not filled with air. For these tires, the tire pressure requirements are relatively strict. And tires filled with air are related to the change of seasons. In addition, tire pressure is closely related to the performance of the car, such as comfort and carrying capacity, and it will also affect the life of the tire. The air pressure is the life of the tire. Too high or too low will shorten the service life of the tire. Too low air pressure will increase the deformation of the tire body, and cracks will easily appear on the sidewalls. At the same time, flexion movement will occur, resulting in excessive heat, rubber aging, cord fatigue, cord breakage, and increase the tire contact area, accelerating the wear of the shoulder. Too high air pressure will cause excessive stretching and deformation of the tire cord, reduce the elasticity of the tire body, and increase the load on the car during driving. In case of impact, internal cracks and explosions will occur. At the same time, too high air pressure will accelerate the wear of the crown and reduce the rolling resistance.

[0003] The existing bicycle tire pressure detection method is usually to squeeze the bicycle tire by hand, and judge whether the bicycle tire pressure is normal by squeezing the depth of the tire. However, this method has a large error when detecting the tire pressure. It is affected by factors such as each person's strength and environment, and it is usually difficult to perform accurate detection. Therefore, we propose a bicycle Presta valve extension nozzle that can display the tire pressure. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. The existing bicycle tire pressure detection method is usually to squeeze the bicycle tire by hand, and judge whether the bicycle tire pressure is normal by squeezing the depth of the tire. However, this method has a large error when detecting the tire pressure. It is affected by factors such as each person's strength and environment, and it is usually difficult to perform accurate detection. The tire pressure of the bicycle tire can be monitored, and when insufficient tire pressure is detected, the tire pressure situation can be more intuitively discovered, which is convenient for timely replenishing the tire pressure to ensure driving safety.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bicycle Presta valve extension nozzle capable of displaying tire pressure comprises a shell body, a mounting cavity is provided inside the shell body and near the right side, a rubber expansion cup is provided inside the mounting cavity and near the top;

[0007] A fixed shell is provided inside the installation cavity, a first spring cover is provided inside the fixed shell, a second spring cover is provided below the first spring cover, and a spring body is provided between the first spring cover and the second spring cover.

[0008] Preferably, the rubber expansion cup is fixed by a winding seat inside the fixed shell and close to the top, and two ends of the rubber expansion cup are respectively clamped with the fixed shell and the installation cavity.

[0009] Preferably, the first spring cover is arranged below the rubber expansion cup and is in contact with the rubber expansion cup.

[0010] Preferably, the diameter of the first spring cover is larger than that of the second spring cover, and the slot direction of the first spring cover is downward, while the slot direction of the second spring cover is upward.

[0011] Preferably, the second spring cover is fixedly connected to the bottom inside the fixed shell, the spring body is installed inside the second spring cover and connected to the fixed shell, and the first spring cover is installed on the top of the spring body and fixedly connected to the spring body.

[0012] Preferably, the fixed shell is made of an acrylic plate, the first spring cover is green in color, and the second spring cover is red in color.

[0013] Preferably, a Presta valve core is provided inside the shell body and near the left side, and a gas communication cavity is provided inside the shell body and above the mounting cavity, and the gas communication cavity and the mounting cavity are connected through a connecting hole.

[0014] Preferably, an air guide hole plugging bolt is threadedly connected to the inside of the gas connecting cavity near the right side, and the air guide hole plugging bolt can seal the gas connecting cavity and can also be opened for deflation.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, when the center of the rubber expansion cup protrudes and presses the first spring cover downward, the first spring cover will press the spring body downward under the action of the extrusion force, so that the first spring cover will gradually move downward and cover the second spring cover. When the first spring cover completely covers the second spring cover, the red color is not displayed and the green color is displayed, indicating that the tire pressure is sufficient. When the air pressure in the tire is insufficient, the elastic force of the spring body itself will lift and reset the first spring cover, and the second spring cover is exposed, and the color of the second spring cover is red. At this time, the red second spring cover can be clearly observed through the fixed shell, indicating that the air pressure is insufficient and gas needs to be supplemented, thereby realizing the monitoring of the tire pressure of the bicycle tire, and when the tire pressure is insufficient, the tire pressure situation can be more intuitively discovered, which is convenient for timely supplementing the tire pressure to ensure driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the main structure of a bicycle Presta valve extension nozzle capable of displaying tire pressure provided by the utility model;

[0018] Figure 2 A schematic diagram of the main cross-sectional structure of a bicycle Presta valve extension nozzle capable of displaying tire pressure provided by the utility model;

[0019] Figure 3 A schematic diagram of the positional relationship between a first spring cover and a second spring cover of a bicycle Presta valve extension nozzle capable of displaying tire pressure provided by the utility model;

[0020] Figure 4 The utility model provides a schematic diagram of the positional relationship between the installation cavity and the connection hole of a bicycle Presta valve extension nozzle capable of displaying tire pressure.

[0021] Legend: 1. Shell body; 2. Installation cavity; 3. Rubber expansion cup; 4. Fixed shell; 5. First spring cover; 6. Second spring cover; 7. Spring body; 8. Winding seat; 9. Presta valve core; 10. Gas connecting cavity; 11. Connection hole; 12. Air guide hole plug bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0026] Example 1

[0027] like Figure 1-4 As shown, the utility model provides a technical solution: a bicycle Presta valve extension nozzle capable of displaying tire pressure, comprising a shell body 1, a mounting cavity 2 is provided inside the shell body 1 and near the right side, a rubber expansion cup 3 is provided inside the mounting cavity 2 and near the top, a fixed shell 4 is provided inside the mounting cavity 2, a first spring cover 5 is provided inside the fixed shell 4, a second spring cover 6 is provided below the first spring cover 5, a spring body 7 is provided between the first spring cover 5 and the second spring cover 6, when the center of the rubber expansion cup 3 protrudes and presses the first spring cover 5 downward, the first spring cover 5 will press the spring body downward under the action of the extrusion force 7, and then the first spring cover 5 will gradually move downward and cover the second spring cover 6. When the first spring cover 5 completely covers the second spring cover 6, the red color is not displayed and the green color is displayed, indicating that the tire pressure is sufficient. When the air pressure in the tire is insufficient, the elastic force of the spring body 7 itself will lift and reset the first spring cover 5, and the second spring cover 6 is exposed. The color of the second spring cover 6 is red. At this time, the red second spring cover 6 can be clearly observed through the fixed shell 4, indicating that the air pressure is insufficient and gas needs to be supplemented, thereby realizing the monitoring of the tire pressure of the bicycle tire. When the tire pressure is insufficient, the tire pressure situation can be more intuitively discovered, which is convenient for timely supplementing the tire pressure to ensure driving safety.

[0028] Example 2

[0029] like Figure 1-4 As shown, the utility model provides a technical solution: the rubber expansion leather cup 3 is fixed by a winding seat 8 inside the fixed shell 4 and near the top, and the two ends of the rubber expansion leather cup 3 are respectively clamped with the fixed shell 4 and the installation cavity 2, the rubber expansion leather cup 3 is fixed on the winding seat 8, and the two ends of the rubber expansion leather cup 3 are respectively clamped with the fixed shell 4 and the installation cavity 2, so that the rubber expansion leather cup 3 will not loosen when squeezed by air pressure, and thus will not be displaced, thereby reducing the error caused by the movement of the rubber expansion leather cup 3.

[0030] The first spring cover 5 is arranged below the rubber expansion cup 3 and contacts the rubber expansion cup 3 . The air pressure in the bicycle tire will press the rubber expansion cup 3 downward, so that the center of the rubber expansion cup 3 will bulge and press the first spring cover 5 downward.

[0031] The diameter of the first spring cover 5 is larger than that of the second spring cover 6, and the slot direction of the first spring cover 5 is downward, while the slot direction of the second spring cover 6 is upward. Since the slot direction of the first spring cover 5 is downward, while the slot direction of the second spring cover 6 is upward, the spring body 7 can be installed between the two. At the same time, the diameter of the first spring cover 5 is larger than that of the second spring cover 6. When the air pressure is sufficient, the first spring cover 5 can move downward and cover the second spring cover 6.

[0032] The second spring cover 6 is fixedly connected to the bottom of the fixed shell 4, the spring body 7 is installed inside the second spring cover 6 and connected to the fixed shell 4, the first spring cover 5 is installed on the top of the spring body 7 and fixedly connected to the spring body 7. When the center of the rubber expansion cup 3 protrudes and presses the first spring cover 5 downward, the first spring cover 5 will press the spring body 7 downward under the action of the extrusion force, so that the first spring cover 5 will gradually move downward and cover the second spring cover 6.

[0033] The material of the fixed shell 4 is an acrylic plate, the color of the first spring cover 5 is green, and the color of the second spring cover 6 is red. The material of the fixed shell 4 is an acrylic plate, which makes it easy to observe the distance between the first spring cover 5 and the second spring cover 6 inside. When the first spring cover 5 completely covers the second spring cover 6, the red color is not displayed and the green color is displayed, indicating that the tire pressure is sufficient. When the air pressure in the tire is insufficient, the elastic force of the spring body 7 itself will lift and reset the first spring cover 5, and the second spring cover 6 is exposed. The color of the second spring cover 6 is red. At this time, the red second spring cover 6 can be clearly observed through the fixed shell 4, indicating that the air pressure is insufficient and gas needs to be supplemented.

[0034] A Presta valve core 9 is provided inside the shell body 1 and near the left side, and a gas communication chamber 10 is provided inside the shell body 1 and above the mounting chamber 2. The gas communication chamber 10 and the mounting chamber 2 are connected via a connecting hole 11. The gas inside the bicycle tire enters into the shell body 1 through the Presta valve core 9, and enters above the rubber expansion cup 3 through the gas communication chamber 10 and the connecting hole 11, and squeezes the rubber expansion cup 3, so that the shape of the rubber expansion cup 3 changes.

[0035] The inside of the gas connecting chamber 10 is threadedly connected with an air guide hole plugging bolt 12 near the right side. The air guide hole plugging bolt 12 can seal the gas connecting chamber 10 and can also be opened for deflation. By opening the air guide hole plugging bolt 12, the gas connecting chamber 10 can be connected with the outside world, so that the gas inside the bicycle tire can reach the outside world through the gas connecting chamber 10, completing the deflation operation inside the tire.

[0036] The working process of the utility model is as follows: Step 1, the gas inside the driving tire will enter the inside of the outer shell body 1 through the Presta valve core 9, and enter the top of the rubber expansion leather cup 3 through the gas connecting cavity 10 and the connecting hole 11, and squeeze the rubber expansion leather cup 3, so that the shape of the rubber expansion leather cup 3 changes, the rubber expansion leather cup 3 is fixed on the winding seat 8, and the two ends of the rubber expansion leather cup 3 are respectively clamped with the fixed outer shell 4 and the installation cavity 2, so that the rubber expansion leather cup 3 will not loosen when squeezed by air pressure, and will not be displaced, thereby reducing the error caused by the movement of the rubber expansion leather cup 3.

[0037] Step 2, when the air pressure in the tire is sufficient, the air pressure in the bicycle tire will squeeze the rubber expansion cup 3 downward, so that the center of the rubber expansion cup 3 will bulge and squeeze the first spring cover 5 downward. Since the slot direction of the first spring cover 5 is downward and the slot direction of the second spring cover 6 is upward, the spring body 7 can be installed between the two. At the same time, the diameter of the first spring cover 5 is larger than the second spring cover 6. When the air pressure is sufficient, the first spring cover 5 can cover the second spring cover 6 when it moves downward. The material of the fixed shell 4 is an acrylic plate, which makes it easy to observe the distance between the first spring cover 5 and the second spring cover 6 inside. When the first spring cover 5 completely covers the second spring cover 6, the red color is not displayed at this time, and the green color is displayed, indicating that the tire pressure is sufficient. When the air pressure in the tire is insufficient, the elastic force of the spring body 7 itself will lift and reset the first spring cover 5, and the second spring cover 6 is exposed at this time, and the color of the second spring cover 6 is red. At this time, the red second spring cover 6 can be clearly observed through the fixed shell 4, indicating that the air pressure is insufficient and gas needs to be supplemented.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bicycle Presta valve extension nozzle capable of displaying tire pressure, comprising a housing body (1), characterized in that: A mounting cavity (2) is provided inside the housing body (1) and near the right side, and a rubber expansion cup (3) is provided inside the mounting cavity (2) and near the top; A fixed shell (4) is provided inside the installation cavity (2), a first spring cover (5) is provided inside the fixed shell (4), a second spring cover (6) is provided below the first spring cover (5), and a spring body (7) is provided between the first spring cover (5) and the second spring cover (6).

2. The bicycle Presta valve extension nozzle capable of displaying tire pressure according to claim 1, characterized in that: The rubber expansion cup (3) is fixed by a winding seat (8) located inside the fixed shell (4) and close to the top, and the two ends of the rubber expansion cup (3) are respectively mutually clamped with the fixed shell (4) and the installation cavity (2).

3. The bicycle Presta valve extension nozzle capable of displaying tire pressure according to claim 1, characterized in that: The first spring cover (5) is arranged below the rubber expansion cup (3) and is in contact with the rubber expansion cup (3).

4. The bicycle Presta valve extension nozzle capable of displaying tire pressure according to claim 1, characterized in that: The diameter of the first spring cover (5) is greater than that of the second spring cover (6), and the slot direction of the first spring cover (5) is downward, while the slot direction of the second spring cover (6) is upward.

5. The bicycle Presta valve extension nozzle capable of displaying tire pressure according to claim 1, characterized in that: The second spring cover (6) is fixedly connected to the bottom of the fixed housing (4), the spring body (7) is installed inside the second spring cover (6) and connected to the fixed housing (4), and the first spring cover (5) is installed on the top of the spring body (7) and fixedly connected to the spring body (7).

6. The bicycle Presta valve extension nozzle capable of displaying tire pressure according to claim 1, characterized in that: The fixed housing (4) is made of an acrylic plate, the first spring cover (5) is green in color, and the second spring cover (6) is red in color.

7. The bicycle Presta valve extension nozzle capable of displaying tire pressure according to claim 1, characterized in that: A Presta valve core (9) is provided inside the shell body (1) and near the left side, and a gas communication cavity (10) is provided inside the shell body (1) and above the installation cavity (2), and the gas communication cavity (10) and the installation cavity (2) are connected via a connecting hole (11).

8. The bicycle Presta valve extension nozzle capable of displaying tire pressure according to claim 7, characterized in that: An air guide hole plugging bolt (12) is threadedly connected to the inside of the gas communication chamber (10) near the right side. The air guide hole plugging bolt (12) can seal the gas communication chamber (10) and can also be opened to release air.

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