Inflation nozzle convenient for observing tire pressure

Abstract

The utility model discloses a charging connector convenient for observing tire pressure, which comprises a shell, a movable rod, an adjusting nut, a sealing block, an adjusting thread, a tire pressure display mechanism and a vent hole, the interior of the shell is of a hollow structure, the movable rod penetrates through the interior of the shell, the upper end and the lower end of the movable rod extend out of the shell, and the sealing block is arranged in the shell. The upper end of the movable rod is provided with the adjusting thread, the adjusting nut is connected with the movable rod through the adjusting thread, the lower end of the movable rod is connected with the sealing block, the tire pressure display mechanism is arranged in the middle of the shell, and a gap between the movable rod and the inner wall of the shell is a vent hole. According to the charging connector convenient for observing the tire pressure, the tire pressure is convenient to observe, a tire pressure detection tool does not need to be carried during riding, and the riding burden is reduced.

Description

Technical Field

[0001] The utility model relates to the field of bicycle inflation valves, in particular to an inflation valve that is convenient for observing tire pressure. Background Art

[0002] A bicycle inflation valve is a device connected to the air chamber of the bicycle inner tube, used to inject air into the bicycle tire to maintain an appropriate air pressure, ensuring smooth and safe bicycle travel. The tire pressure of a bicycle is very important. Tire pressure affects the comfort, safety, tire life, performance, etc. of the bicycle. Especially for a high-performance road bike nowadays, the requirements for tire pressure are even more stringent.

[0003] Currently, the inflation valves of bicycles on the market have a single function and only have the inflation function. If tire pressure needs to be detected, it can only be achieved through external detection tools, resulting in the need to carry detection tools during cycling, with cumbersome operations and an increased cycling burden. Content of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the utility model provides an inflation valve that can observe tire pressure in real time, with convenient operation and reduced cycling burden.

[0005] The purpose of the utility model is achieved in the following way:

[0006] An inflation valve that is convenient for observing tire pressure, comprising: a housing, a movable rod, an adjusting nut, a sealing block, an adjusting thread, a tire pressure display mechanism, and a ventilation hole. The interior of the housing is a hollow structure. The movable rod passes through the interior of the housing, and both the upper and lower ends of the movable rod extend out of the housing. The upper end of the movable rod is provided with the adjusting thread, and the adjusting nut is connected to the movable rod through the adjusting thread. The lower end of the movable rod is connected with the sealing block. The tire pressure display mechanism is arranged in the middle of the housing, and the gap between the movable rod and the inner wall of the housing is the ventilation hole.

[0007] As an optional scheme of the technical solution of the utility model, the movable rod is made of a transparent material;

[0008] The tire pressure display mechanism comprises: a display window, a pressure hole, a pressure film, a high-pressure scale, a standard-pressure scale, and a low-pressure scale. The display window is arranged in the middle of the housing, and the display window is made of a transparent material. The pressure hole is arranged in the movable rod. The upper end of the pressure hole is sealed, and the lower end penetrates through the movable rod and is connected to the sealing block. The inner wall of the pressure hole is connected with the pressure film. The inner wall of the pressure hole is provided with the high-pressure scale, the standard-pressure scale, and the low-pressure scale from top to bottom in sequence. The low-pressure scale is above the connection between the pressure film and the pressure hole.

[0009] As an alternative embodiment of the technical solution of the present utility model, it further includes: a limit block disposed at the upper end of the movable rod for preventing the adjusting nut from falling off the movable rod.

[0010] As an alternative embodiment of the technical solution of the present utility model, it further includes: a sealing ring provided on the sealing block for enhancing the sealing strength.

[0011] The beneficial effects of the present utility model are:

[0012] An air nozzle for conveniently observing tire pressure of the present utility model is provided with a transparent display window and a transparent movable rod. A pressure cavity is provided inside the movable rod, and a pressure film, a high-pressure scale, a standard-pressure scale, and a low-pressure scale are provided inside the pressure cavity. The pressure cavity is connected to the inside of the tire. The pressure in the space above the pressure film is the atmospheric pressure. After the tire is inflated, the pressure increases. The middle position of the pressure film will bulge upward due to the increase in the internal pressure of the tire. By observing the bulge of the pressure film to the corresponding scale, it can be determined whether the tire pressure meets the requirements, achieving convenient observation of tire pressure. There is no need to carry a tire pressure detection tool during cycling, reducing the cycling burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 Schematic diagram of an air nozzle for conveniently observing tire pressure according to Embodiment 1 of the present utility model;

[0015] Figure 2 Cross-sectional view of an air nozzle for conveniently observing tire pressure according to Embodiment 1 of the present utility model;

[0016] Figure 3 Enlarged view of the structure at A when the standard pressure is applied to an air nozzle for conveniently observing tire pressure according to Embodiment 1 of the present utility model;

[0017] Figure 4 Enlarged view of the structure at A when the high pressure is applied to an air nozzle for conveniently observing tire pressure according to Embodiment 1 of the present utility model;

[0018] Figure 5 Enlarged view of the structure at A when the low pressure is applied to an air nozzle for conveniently observing tire pressure according to Embodiment 1 of the present utility model.

[0019] Reference numerals:

[0020] 1. Outer shell; 2. Movable rod; 21. Adjusting thread; 3. Adjusting nut; 4. Sealing block; 41. Sealing ring; 6. Tire pressure display mechanism (6); 61. Pressure hole; 62. Pressure film (62); 631. High-pressure scale; 632. Standard pressure scale; 633. Low-pressure scale; 7. Vent hole. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0023] In the description of the embodiments, unless otherwise clearly specified and limited, terms such as "set" and "connected" 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 a mechanical connection, a direct connection, or a connection through an intermediate medium, and it can also be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] Embodiment 1

[0025] As Figure 1-2 shown, an inflation nozzle convenient for observing tire pressure includes: an outer shell 1, a movable rod 2, an adjusting nut 3, a sealing block 4, an adjusting thread 21, a tire pressure display mechanism 6, and a vent hole 7. The lower end of the outer shell 1 is arranged inside the tire. The inside of the outer shell 1 is a hollow structure. The movable rod 2 passes through the inside of the outer shell 1. The upper and lower ends of the movable rod 2 extend out of the outer shell 1. The upper end of the movable rod 2 is provided with an adjusting thread 21. The adjusting nut 3 is connected to the movable rod 2 through the adjusting thread 21. The lower end of the movable rod 2 is connected with a sealing block 4. The tire pressure display mechanism 6 is arranged in the middle of the outer shell 1. The gap between the movable rod 2 and the inner wall of the outer shell 1 is the vent hole 7.

[0026] As Figure 1-5As shown in the figure, as a further solution of this embodiment, the movable rod 2 is made of a transparent material; the tire pressure display mechanism 6 includes: a display window 64, a pressure hole 61, a pressure film 62, a high-pressure scale 631, a standard pressure scale 632, and a low-pressure scale 633. The display window 64 is arranged in the middle of the housing 1 and is made of a transparent material. The pressure hole 61 is arranged in the movable rod 2. The upper end of the pressure hole 61 is sealed, and the lower end penetrates through the movable rod 2 and the sealing block 4. The inner wall of the pressure hole 61 is connected with a pressure film 62. The inner wall of the pressure hole 61 is provided with a high-pressure scale 631, a standard pressure scale 632, and a low-pressure scale 633 from top to bottom in sequence. The low-pressure scale 633 is above the connection between the pressure film 62 and the pressure hole 61.

[0027] As Figure 1 shown in the figure, as a further solution of this embodiment, an inflation nozzle for conveniently observing the tire pressure further includes: a limit block 22. The limit block 22 is arranged at the upper end of the movable rod 2 and is used to prevent the adjusting nut 3 from falling off the movable rod 2.

[0028] As Figure 2 shown in the figure, as a further solution of this embodiment, an inflation nozzle for conveniently observing the tire pressure further includes: the sealing block 4 is provided with a sealing ring 41 for increasing the sealing strength.

[0029] The working process of this embodiment: During inflation, rotate the adjusting nut 3 below the limit block 22, and the movable rod 2 slides downward in the housing 1, so that the sealing block 4 is separated from the lower end of the housing 1, and the sealing ring 41 does not seal the ventilation hole 7, and the tire can be inflated through the ventilation hole 7; the pressure inside the tire causes the pressure film 62 to bulge upward. When the pressure film 62 bulges to the scale of the standard pressure scale 632, stop inflation; after inflation is completed, rotate the adjusting nut 3 so that the adjusting nut 3 moves in the direction of the limit block 22. When the adjusting nut 3 presses the upper end of the housing 1, the sealing ring 41 generates pressure on the lower end of the housing 1, so that the sealing ring 41 seals the ventilation hole 7 at the lower end of the housing 1 to prevent air leakage; of course, because the display window 64 is made of a transparent material and the movable rod 2 is also made of a transparent material, it is convenient to observe the tire pressure through the display window 64 when not inflating.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them; when the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. An inflation nozzle that facilitates tire pressure observation, characterized in that, Comprising: A housing (1), a movable rod (2), an adjusting nut (3), a sealing block (4), an adjusting thread (21), a tire pressure display mechanism (6), and a ventilation hole (7). The interior of the housing (1) is a hollow structure. The movable rod (2) passes through the interior of the housing (1), and the upper and lower ends of the movable rod (2) extend out of the housing (1). The upper end of the movable rod (2) is provided with the adjusting thread (21), and the adjusting nut (3) is connected to the movable rod (2) through the adjusting thread (21). The lower end of the movable rod (2) is connected to the sealing block (4). The tire pressure display mechanism (6) is arranged in the middle of the housing (1), and the gap between the movable rod (2) and the inner wall of the housing (1) is the ventilation hole (7).

2. The inflator for conveniently observing tire pressure according to claim 1, wherein The movable rod (2) is made of a transparent material; The tire pressure display mechanism (6) includes: a display window (64), a pressure hole (61), a pressure film (62), a high-pressure scale (631), a standard pressure scale (632), and a low-pressure scale (633). The display window (64) is arranged in the middle of the housing (1), and the display window (64) is made of a transparent material. The pressure hole (61) is arranged in the movable rod (2). The upper end of the pressure hole (61) is sealed, and the lower end penetrates through the movable rod (2) and is connected to the sealing block (4). The inner wall of the pressure hole (61) is connected with the pressure film (62). The inner wall of the pressure hole (61) is successively provided with the high-pressure scale (631), the standard pressure scale (632), and the low-pressure scale (633) from top to bottom. The low-pressure scale (633) is above the connection between the pressure film (62) and the pressure hole (61).

3. The inflation nozzle for conveniently observing tire pressure according to claim 1, characterized in that, Further comprising: A limit block (22) arranged at the upper top of the movable rod (2) for preventing the adjusting nut (3) from falling off the movable rod (2).

4. A tire valve for conveniently observing tire pressure according to claim 1, characterized in that, Further comprising: A sealing ring (41) provided on the sealing block (4) for increasing the sealing strength.

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