A high-efficiency air pump core

Abstract

This utility model discloses a high-efficiency air pump mechanism, including a bracket. A cylinder liner is integrally mounted on one end of the bracket. A horizontally movable piston head is housed within the cylinder liner. Multiple air inlets are provided on the piston head. A check valve spring, cooperating with the air inlets, is mounted on the piston pressure plate to control unidirectional air intake. Multiple air outlet ports are provided on the end face of the cylinder liner. Multiple check valve assemblies are installed inside the cylinder head to control backflow from the multiple air outlet ports. This utility model's air pump mechanism incorporates multiple check valve assemblies and features multiple air inlets on the piston head and multiple check valve springs on the piston pressure plate that cooperate with the air inlets, achieving efficient air intake, air stoppage, and prevention of backflow, thereby improving inflation efficiency. Two threaded air inlets of different sizes on the cylinder head allow for diverse interface options to meet customer needs. A pressure relief port on the cylinder head, in conjunction with a pressure relief valve, automatically releases excess gas in case of overpressure, ensuring safety.

Description

Technical Field

[0001] This utility model belongs to the field of air pump technology, specifically relating to a high-efficiency air pump mechanism. Background Technology

[0002] An air pump, also known as a tire inflator or air pump, has its core mechanism as its internal working principle. The mechanism works by rotating a motor. When pumping air, the piston's check valve is opened by atmospheric pressure, allowing air to enter the cylinder. When inflating, the check valve is closed by the pressure inside the cylinder, allowing air to enter the tire. Air pumps are widely used in automobiles, motorcycles, bicycles, and other fields.

[0003] Existing air pump mechanisms are generally designed with only one air outlet connected to the cylinder head, a check valve assembly, and a single air inlet, resulting in low efficiency in air intake and inflation. Therefore, this utility model designs a high-efficiency air pump mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency air pump mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency air pump core, including a bracket, a drive motor fixedly mounted at one end of the bracket, and a cylinder liner integrally mounted at the other end of the bracket. A horizontally movable piston head is disposed within the cylinder liner, and an outwardly extending connecting rod is integrally mounted on one side of the piston head. The drive motor drives the connecting rod and piston head to perform horizontal reciprocating motion via a reciprocating transmission assembly. A piston ring is pressed and mounted on the inner side of the piston head by a piston pressure plate, and the piston ring fits against the inner wall of the cylinder liner. Multiple air inlets are provided on the piston head. A check valve spring, which cooperates with the air inlets to control unidirectional air intake, is disposed on the piston pressure plate. A cylinder head is fixedly mounted at the end of the cylinder liner, and multiple air outlets are provided on the end face of the cylinder liner. Multiple check valve assemblies for controlling the return air from the multiple air outlets are disposed within the cylinder head. A combined air inlet is disposed at the bottom of the cylinder head, and a pressure relief assembly for depressurization is also disposed on the cylinder head.

[0006] Preferably, the reciprocating transmission assembly includes a drive gear fixedly mounted on the output end of the drive motor, a driven gear disk rotatably mounted on the bracket via a gear limiting shaft, and a connecting rod limiting shaft eccentrically mounted on the driven gear disk, with one end of the connecting rod sleeved on the connecting rod limiting shaft via a bearing.

[0007] Preferably, a ball bearing is provided at the connection between the gear limiting shaft and the bracket, and a retaining spring is engaged at the top of the connecting rod limiting shaft to effectively limit and maintain the horizontal reciprocating motion of the connecting rod.

[0008] Preferably, each of the check valve assemblies includes a check valve and a return spring. The check valve is aligned with the corresponding air outlet, and the check valve is sealed to the outside of the corresponding air outlet by the return spring. The cylinder head is provided with a guide groove for guiding the extension and retraction of the return spring.

[0009] Preferably, the combined inflation port includes a threaded inflation port A and a threaded inflation port B disposed at the bottom of the cylinder head, and the threaded inflation port A and the threaded inflation port B are uniformly connected inside the cylinder head.

[0010] Preferably, the pressure relief assembly includes a pressure relief port disposed on the cylinder head, the pressure relief port communicating with the interior of the cylinder head, and a pressure relief valve for pressure relief regulation is installed on the pressure relief port.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The air pump core designed in this utility model is equipped with multiple check valve components and multiple air inlets on the piston head. Multiple check springs that cooperate with the air inlets are designed on the piston pressure plate to achieve efficient air intake and air stop, prevent backflow, and thus improve the air pumping efficiency.

[0013] The bottom of the cylinder head is designed with two threaded air inlets of different sizes, which can realize a variety of interface options to meet customer needs;

[0014] The cylinder head is designed with a pressure relief port and equipped with a simple and practical pressure relief valve, which automatically releases excess gas when there is overpressure to ensure safety. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the piston head mounting location of this utility model;

[0018] Figure 4 This is a schematic diagram of the integrated bracket and cylinder liner of this utility model;

[0019] Figure 5 This is a schematic diagram of the cylinder head structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the piston head and connecting rod of this utility model;

[0022] In the diagram: 1. Bracket; 2. Drive motor; 3. Cylinder liner; 4. Drive gear; 5. Driven gear disc; 6. Connecting rod; 7. Connecting rod limit shaft; 8. Snap ring; 9. Cylinder head; 10. Pressure relief valve; 11. Piston head; 12. Gear limit shaft; 13. Piston ring; 14. Check spring; 15. Air outlet; 16. Threaded air inlet A; 17. Threaded air inlet B; 18. Piston pressure plate; 19. Pressure relief port; 20. Check valve; 21. Return spring; 22. Air inlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figures 1 to 7 This utility model provides a technical solution: a high-efficiency air pump core, including a bracket 1, a drive motor 2 fixedly mounted at one end of the bracket 1, and a cylinder liner 3 integrally formed at the other end of the bracket 1. A horizontally movable piston head 11 is disposed inside the cylinder liner 3. A connecting rod 6 extending outward is integrally formed on one side of the piston head 11. The drive motor 2 drives the connecting rod 6 and the piston head 11 to perform horizontal reciprocating motion via a reciprocating transmission assembly. A piston ring 13 is pressed and mounted on the inner side of the piston head 11 by a piston pressure plate 18, and the piston ring 13 and the inner side of the cylinder liner 3 are... The piston head 11 has multiple air inlets 22, and the piston pressure plate 18 is equipped with a check valve 14 that cooperates with the air inlets 22 to control one-way air intake. The cylinder liner 3 is fixedly mounted with a cylinder head 9, and the end face of the cylinder liner 3 has multiple air outlet ports 15. The cylinder head 9 is equipped with multiple check valve assemblies for controlling the return air from the multiple air outlet ports 15, so as to achieve efficient air intake and air stop, prevent back air, and thus improve the air pumping efficiency. The bottom of the cylinder head 9 is equipped with a combined air inlet, and the cylinder head 9 is also equipped with a pressure relief assembly for pressure relief.

[0026] In this embodiment, preferably, the reciprocating transmission assembly includes a driving gear 4 fixedly mounted on the output end of the drive motor 2, a driven gear disk 5 rotatably mounted on the bracket 1 via a gear limiting shaft 12, and a connecting rod limiting shaft 7 eccentrically mounted on the driven gear disk 5. One end of the connecting rod 6 is sleeved on the connecting rod limiting shaft 7 via a bearing. In this embodiment, preferably, a ball bearing is provided at the connection between the gear limiting shaft 12 and the bracket 1, and a retaining spring 8 is engaged at the top of the connecting rod limiting shaft 7 to limit and maintain the horizontal reciprocating motion of the connecting rod 6, thereby achieving a limiting and stabilizing effect. In this embodiment, preferably, each check valve assembly includes a check valve 20 and a return spring 21. The check valve 20 is aligned with the corresponding air outlet port 15, and the check valve 20 is sealed to the outside of the corresponding air outlet port 15 by the return spring 21. A guide groove is provided inside the cylinder head 9 for guiding the extension and retraction of the return spring 21. In order to ensure that the return spring 21 can extend and retract horizontally stably, thereby ensuring the horizontal movement of the check valve 20, and ensuring that the check valve 20 can always remain aligned with the air outlet port 15 after reset. In this embodiment, preferably, the combined inflation port includes a threaded inflation port A16 and a threaded inflation port B17 provided at the bottom of the cylinder head 9, and the threaded inflation port A16 and the threaded inflation port B17 are uniformly connected inside the cylinder head 9; the two threaded inflation ports of different sizes can realize diversified interface selection to meet customer needs. In this embodiment, preferably, the pressure relief assembly includes a pressure relief port 19 disposed on the cylinder head 9, the pressure relief port 19 being in communication with the interior of the cylinder head 9, and a pressure relief valve 10 for pressure relief regulation installed on the pressure relief port 19, which automatically releases excess gas when there is overpressure to ensure safety.

[0027] Although embodiments of the present invention have been shown and described in detail above, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency air pump core, comprising a bracket (1), wherein a drive motor (2) is fixedly mounted at the bottom of one end of the bracket (1), and a cylinder liner (3) is integrally provided at the other end of the bracket (1). A horizontally movable piston head (11) is provided inside the cylinder liner (3), and an outwardly extending connecting rod (6) is integrally provided on one side of the piston head (11). The drive motor (2) drives the connecting rod (6) and the piston head (11) to perform horizontal reciprocating motion through a reciprocating transmission assembly, characterized in that: A piston ring (13) is pressed and installed on the inner side of the piston head (11) by a piston pressure plate (18), and the piston ring (13) is in contact with the inner wall of the cylinder liner (3). The piston head (11) is provided with multiple air inlets (22). The piston pressure plate (18) is provided with a check spring (14) that cooperates with the air inlets (22) to control one-way air intake. A cylinder head (9) is fixedly installed at the end of the cylinder liner (3). Multiple air outlet ports (15) are provided on the end face of the cylinder liner (3). Multiple check valve assemblies for controlling the return of air from the multiple air outlet ports (15) are provided inside the cylinder head (9). A combined air inlet is provided at the bottom of the cylinder head (9). A pressure relief assembly for depressurization is also provided on the cylinder head (9).

2. The high-efficiency air pump core according to claim 1, characterized in that: The reciprocating transmission assembly includes a drive gear (4) fixedly installed at the output end of the drive motor (2), a driven gear disk (5) rotatably installed on the bracket (1) via a gear limiting shaft (12), and a connecting rod limiting shaft (7) eccentrically installed on the driven gear disk (5). One end of the connecting rod (6) is sleeved on the connecting rod limiting shaft (7) via a bearing.

3. The high-efficiency air pump core according to claim 2, characterized in that: A ball bearing is provided at the connection between the gear limiting shaft (12) and the bracket (1), and a snap ring (8) is engaged at the top of the connecting rod limiting shaft (7) to limit and maintain the horizontal reciprocating motion of the connecting rod (6).

4. The high-efficiency air pump core according to claim 1, characterized in that: Each of the check valve assemblies includes a check valve (20) and a return spring (21). The check valve (20) is aligned with the corresponding air outlet (15), and the check valve (20) is sealed to the outside of the corresponding air outlet (15) by the return spring (21). The cylinder head (9) is provided with a guide groove for guiding the extension and retraction of the return spring (21).

5. The high-efficiency air pump core according to claim 1, characterized in that: The combined air inlet includes a threaded air inlet A (16) and a threaded air inlet B (17) located at the bottom of the cylinder head (9), and the threaded air inlet A (16) and the threaded air inlet B (17) are uniformly connected to the interior of the cylinder head (9).

6. The high-efficiency air pump core according to claim 1, characterized in that: The pressure relief assembly includes a pressure relief port (19) disposed on the cylinder head (9), the pressure relief port (19) communicating with the interior of the cylinder head (9), and a pressure relief valve (10) for pressure relief regulation is installed on the pressure relief port (19).

Images