Foldable rotary display pressure gauge foot pump

Abstract

This application relates to the field of air pump technology, and in particular discloses a foot-operated air pump with a foldable, rotating pressure gauge. It includes a bottom mounting base, an inflation mechanism, a rotating base, and a one-way valve body mounted thereon. The inflation mechanism compresses gas via a foot pedal-driven rubber piston. The gas enters the inflation tube through an exhaust channel and the one-way valve body. The pressure gauge is directly mounted on one side of the one-way valve body, allowing for real-time monitoring of inflation pressure. The gauge head is rotatable, allowing for vertical placement when not in use to save space. Additionally, a rotatable foot pedal screw is added to the bottom, cooperating with a limiting slot on the anti-slip cover to ensure overall stability during operation. This solution effectively solves the problems of traditional products failing to accurately monitor air pressure in real time, having large packaging volume, and being prone to shaking during operation. It offers advantages such as intuitive inflation process, convenient storage, and stable and reliable operation.

Description

Technical Field

[0001] This application relates to the field of air pump technology, and in particular to a foot-operated air pump with a foldable, rotating display pressure gauge. Background Technology

[0002] Traditional foot-operated air pumps are widely used for inflating tires in small vehicles such as bicycles and motorcycles, but their structural design and functionality still have several significant shortcomings. Most existing products lack or have external pressure detection, making it difficult for users to monitor inflation pressure in real time, easily leading to over- or under-inflation, affecting driving safety and tire lifespan. Furthermore, the foot pedal structure of common air pumps often has poor stability, easily shifting or tipping over during operation, especially noticeable on uneven ground, reducing ease of use and efficiency. On the other hand, the overall structure of traditional air pumps is often fixed, with non-adjustable components such as the inflation valve and gauge, occupying a large space during packaging, transportation, and storage, increasing logistics costs and warehousing difficulties. While some products have pressure display devices, they are often installed in non-optimized locations on the cylinder or air path, resulting in poor visibility and susceptibility to vibration damage, affecting product reliability and user experience. Therefore, the industry urgently needs a foot-operated air pump with a reasonable structure, easy operation, and integrated real-time pressure display function, capable of stable inflation and accurate pressure feedback within limited space, while also considering portability and safety. Utility Model Content

[0003] This application proposes a foot pump with a foldable, rotating display pressure gauge to solve the above-mentioned problems.

[0004] The technical solution of this application is implemented as follows:

[0005] A foot-operated air pump with a foldable, rotating pressure gauge includes a bottom mounting base. An inflation mechanism is fixed to one end of the upper surface of the bottom mounting base. A rotating seat is formed on the other side of the upper surface of the bottom mounting base. An inclined mounting surface at a 45-degree angle is formed on the upper end face of the rotating seat. A mounting cavity perpendicular to the inclined mounting surface is formed inside the rotating seat. An exhaust channel connecting the inflation mechanism and the inner cavity of the rotating seat is formed inside the bottom mounting base. A one-way valve body is rotatably mounted on the rotating seat. One end of the one-way valve body is formed with a groove that connects to the pressure gauge. The positioning inclined surfaces are fitted together, and a rotating insert is formed on the positioning inclined surface to be inserted into the mounting cavity. A limiting ring groove is formed on the outer circle of the rotating insert. Two limiting pins are installed on the side wall of the rotating seat, which pass through the limiting ring groove to axially limit the rotating insert. An inflation tube is detachably connected to the other end of the one-way valve body. An inflation nozzle connected to the tire is detachably connected to the end of the inflation tube. A pressure gauge for detecting the air pressure in the inflation tube is fixed to one side of the one-way valve body by screws.

[0006] Furthermore, the inflation mechanism includes an outer cylinder sleeve integrally formed with the bottom mounting base. A fixed sleeve is threadedly connected to one end of the outer cylinder sleeve away from the bottom mounting base. An inner cylinder body coaxially arranged with the outer cylinder sleeve is slidably installed inside the fixed sleeve. A rubber piston is detachably connected to one end of the inner cylinder body near the bottom mounting base. The edge of the rubber piston is interference-fitted with the inner wall of the outer cylinder sleeve. A foot pedal is fixed to one end of the inner cylinder body away from the bottom mounting base. A spring is installed inside the outer cylinder sleeve to push the inner cylinder body away from the bottom mounting base.

[0007] Furthermore, an anti-slip cover is detachably connected to the upper surface of the foot pedal, and the upper surface of the anti-slip cover is formed with anti-slip texture.

[0008] Furthermore, a foot pedal is rotatably mounted on one end of the bottom mounting base near the inflation mechanism, and a limiting groove is formed on the upper surface of the anti-slip cover plate to cooperate with the foot pedal.

[0009] By adopting the above technical solution, the beneficial effects of this application are as follows:

[0010] 1. The pressure gauge integrated on one side of the one-way valve body can detect the air pressure in the inflation line in real time, helping users to accurately grasp the inflation progress, avoid excessive or insufficient pressure, and improve inflation accuracy and operational safety.

[0011] 2. The pressure gauge's rotatable design allows it to be adjusted to a vertical position when not in use, effectively reducing the overall packaging size and lowering transportation and storage costs. At the same time, when in use, it can be adjusted to a horizontal position for easy observation, balancing space efficiency and functionality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is the main sectional view of this application;

[0014] Figure 2 This is a perspective view of this application;

[0015] Figure 3 This is a perspective view of the bottom mounting base of this application;

[0016] Figure 4 This is a schematic diagram of the one-way valve body structure of this application;

[0017] Figure 5 This is a three-dimensional view of the inflated state of this application.

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Bottom mounting base; 2. Inflation mechanism; 21. Outer cylinder liner; 22. Inner cylinder body; 23. Rubber piston; 24. Fixing sleeve; 25. Foot pedal; 26. Anti-slip cover; 27. Foot pedal screw; 28. Limiting groove; 29. ​​Spring; 3. Rotating seat; 4. Exhaust passage; 5. One-way valve body; 6. Pressure gauge; 7. Mounting cavity; 8. Mounting slope; 9. Positioning slope; 10. Rotating insert; 11. Limiting ring groove; 12. Limiting pin; 13. Inflation pipe; 14. Inflation nozzle. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] like Figures 1-5 As shown, a foot-operated air pump with a foldable and rotating pressure gauge includes a bottom mounting base 1. An inflation mechanism 2 is fixed to one end of the upper surface of the bottom mounting base 1. A rotating base 3 is formed on the other side of the upper surface of the bottom mounting base 1. An inclined mounting surface 8 at a 45-degree angle is formed on the upper end face of the rotating base 3. An installation cavity 7 perpendicular to the inclined mounting surface 8 is formed inside the rotating base 3. An exhaust channel 4 connecting the inflation mechanism 2 and the inner cavity of the rotating base 3 is formed inside the bottom mounting base 1. A one-way valve body 5 is rotatably mounted on the rotating base 3. The one-way valve body 5 prevents gas from flowing back into the inflation mechanism 2. A positioning inclined surface 9 is formed at one end of the one-way valve body 5, which fits against the inclined mounting surface 8. A rotating insert 10 is formed on the positioning inclined surface 9 and inserted into the installation cavity 7. A limiting annular groove 11 is formed on the outer circumference of the rotating insert 10. Two limiting pins 12 are installed on the side wall of the seat 3, which pass through the limiting ring groove 11 to axially limit the rotating insert 10. This structure allows the one-way valve body 5 to rotate relative to the rotating seat 3 without axially dislodging, making it easy to adjust the observation angle of the pressure gauge. A sealing ring is installed on the contact surface between the rotating insert 10 and the mounting cavity 7 to ensure a sealing effect. An inflation tube 13 is installed at the other end of the one-way valve body 5 through a threaded connection. A sealing ring is installed at the end of the one-way valve body 5 where the inflation tube 13 is installed to ensure a sealing effect. An inflation nozzle 14 connected to the tire is installed at the end of the inflation tube 13 through a threaded connection. A pressure gauge 6 for detecting the air pressure in the inflation tube 13 is fixed to one side of the one-way valve body 5 by screws. The pressure gauge 6 is connected to the internal air passage of the one-way valve body 5, which can monitor the inflation pressure in real time for easy observation by the user.

[0022] In another preferred embodiment of the present invention, the inflation mechanism 2 includes an outer cylinder sleeve 21 integrally formed with the bottom mounting base 1. The integral forming reduces the number of molds and production costs. A fixed sleeve 24 is installed at the end of the outer cylinder sleeve 21 away from the bottom mounting base 1 via a threaded connection. An inner cylinder body 22 coaxially arranged with the outer cylinder sleeve 21 is slidably installed inside the fixed sleeve 24. The fixed sleeve 24 guides and supports the inner cylinder body 22 to ensure smooth piston movement. A rubber piston 23 is installed at the end of the inner cylinder body 22 near the bottom mounting base 1 via a threaded pressure plate. The edge of the rubber piston 23 is interference-fitted with the inner wall of the outer cylinder sleeve 21 to ensure effective sealing and airtightness during inflation. A foot pedal 25 is fixed at the end of the inner cylinder body 22 away from the bottom mounting base 1. A spring 29 is installed inside the outer cylinder sleeve 21 to push the inner cylinder body 22 away from the bottom mounting base 1.

[0023] In another preferred embodiment of the present invention, an anti-slip cover plate 26 is installed on the upper surface of the foot pedal 25 by means of a snap fastener. The upper surface of the anti-slip cover plate 26 is formed with anti-slip texture to increase the friction between the foot and the pedal, prevent slipping, improve the safety of operation, and the anti-slip cover plate 26 can be disassembled and replaced after long-term use and wear.

[0024] As another preferred embodiment of the present invention, a foot pedal 27 is rotatably installed on one end of the bottom mounting base 1 near the inflation mechanism 2. The foot pedal 27 is "n" shaped. A limiting groove 28 is formed on the upper surface of the anti-slip cover plate 26 to cooperate with the foot pedal 27. The foot pedal 27 can be rotated into the limiting groove 28 to fix the folded position of the air pump when it is not in use, saving space and making it easy to carry.

[0025] When packaging, to save space, rotate the pressure gauge 6 to a vertical position. When needed, rotate the pressure gauge 6 to change its position from vertical to horizontal. Then, install the inflation nozzle 14 on the tire, rotate the foot pedal screw 27 to place it on the ground, step on the foot pedal screw 27 with one foot to prevent the pump from tipping over or moving, and step on the anti-slip cover 26 with the other foot to complete the inflation. During inflation, the air pressure of the inflated airbag can be checked by observing the pressure gauge 6.

[0026] The working principle of this foot-operated air pump is based on the reciprocating motion of a piston to generate airflow, which is controlled by a one-way valve. When the user steps on the anti-slip cover 26, the force is transmitted through the inner cylinder 22 to the rubber piston 23, causing it to move downwards along the inner wall of the outer cylinder sleeve 21, compressing the air inside the cylinder. The compressed gas enters the mounting cavity 7 in the rotating seat 3 through the exhaust channel 4 inside the bottom mounting base 1. Under the action of air pressure, the valve core in the one-way valve body 5 opens, and gas enters the tire through the inflation pipe 13 and the inflation nozzle 14. When the foot is lifted, the rubber piston 23 returns to its original position inside the cylinder and moves upwards, creating a negative pressure inside the cylinder. External air is replenished into the cylinder through the fixed sleeve 24 or the air inlet on the outer cylinder sleeve 21, while the one-way valve closes to prevent gas backflow. Continuous pedaling makes the above process cycle, so that gas is continuously supplied to the tire. Throughout the process, the pressure gauge 6 installed on the one-way valve body 5 monitors the gas pressure in the inflation pipe 13 in real time and directly displays the pressure value. The rotating insert 10 and the limiting pin 12 work together to achieve reliable positioning of the one-way valve body 5 on the rotating seat 3, ensuring stable air circuit connection and adjustable orientation of the pressure gauge 6.

[0027] Components not described in detail in this article are existing technologies.

[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A foot-operated air pump with a foldable rotating display pressure gauge, comprising a bottom mounting base (1), wherein an inflation mechanism (2) is fixed to one end of the upper surface of the bottom mounting base (1), characterized in that: A rotating seat (3) is formed on the other side of the upper surface of the bottom mounting base (1). An inclined mounting surface (8) at a 45-degree angle is formed on the upper end face of the rotating seat (3). An mounting cavity (7) perpendicular to the inclined mounting surface (8) is formed inside the rotating seat (3). An exhaust channel (4) connecting the inflation mechanism (2) and the inner cavity of the rotating seat (3) is formed inside the bottom mounting base (1). A one-way valve body (5) is rotatably mounted on the rotating seat (3). A positioning inclined surface (9) that fits against the inclined mounting surface (8) is formed at one end of the one-way valve body (5). An insertion point is formed on the positioning inclined surface (9). The rotating insert (10) is located in the mounting cavity (7). A limiting ring groove (11) is formed on the outer circle of the rotating insert (10). Two limiting pins (12) are installed on the side wall of the rotating seat (3) to axially limit the rotating insert (10) by passing through the limiting ring groove (11). An inflation tube (13) is detachably connected to the other end of the one-way valve body (5). An inflation nozzle (14) connected to the tire is detachably connected to the end of the inflation tube (13). A pressure gauge (6) for detecting the air pressure in the inflation tube (13) is fixed to one side of the one-way valve body (5) by screws.

2. The foot pump with a foldable rotating display pressure gauge according to claim 1, characterized in that: The inflation mechanism (2) includes an outer cylinder sleeve (21) integrally formed with the bottom mounting base (1). A fixed sleeve (24) is threadedly connected to one end of the outer cylinder sleeve (21) away from the bottom mounting base (1). An inner cylinder body (22) coaxially arranged with the outer cylinder sleeve (21) is slidably installed inside the fixed sleeve (24). A rubber piston (23) is detachably connected to one end of the inner cylinder body (22) near the bottom mounting base (1). The edge of the rubber piston (23) is interference-fitted with the inner wall of the outer cylinder sleeve (21). A foot pedal (25) is fixed to one end of the inner cylinder body (22) away from the bottom mounting base (1). A spring (29) is installed inside the outer cylinder sleeve (21) to push the inner cylinder body (22) away from the bottom mounting base (1).

3. A foot-operated air pump with a foldable rotating display pressure gauge according to claim 2, characterized in that: An anti-slip cover plate (26) is detachably connected to the upper surface of the foot pedal (25), and the upper surface of the anti-slip cover plate (26) is formed with anti-slip texture.

4. A foot-operated air pump with a foldable rotating display pressure gauge according to claim 3, characterized in that: The bottom mounting base (1) is rotatably mounted with a foot pedal (27) at one end near the inflation mechanism (2), and a limiting groove (28) is formed on the upper surface of the anti-slip cover (26) to cooperate with the foot pedal (27).

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