A compact air pump core

Abstract

This utility model discloses a compact air pump core, belonging to the technical field of air pump cores. The utility model includes a motor, an end cap bracket assembly, and a cylinder assembly. The end cap bracket assembly includes an integrally formed gear bracket and a cylinder end cap. A sensor bracket is fixedly mounted on the side of the cylinder end cap. One end of the gear bracket extends integrally with the cylinder end cap in an L-shape, and the side of the cylinder end cap also extends integrally with the sensor bracket. The cylinder assembly includes an integrally formed cylinder body and a pagoda-shaped air pipe head. The outer side of the cylinder body extends integrally with the pagoda-shaped air pipe head. The gear bracket and cylinder end cap of this utility model are integrally injection-molded metal parts, greatly increasing the volume and surface area of ​​the parts, significantly improving heat dissipation, and saving the total number of parts and reducing the number of molds required. Simultaneously, the cylinder body and pagoda-shaped air pipe head are integrally injection-molded, saving the total number of parts, reducing the number of molds required, saving the overall cost of the pump core, and facilitating installation and disassembly.

Description

Technical Field

[0001] This utility model relates to the field of air pump core technology, specifically a compact air pump core. Background Technology

[0002] There are many types of air pumps on the market. Each air pump has a built-in pump core, which mainly includes a motor, gears, gear bracket, piston, cylinder, cylinder end cap, plastic pressure sensor bracket, pressure sensor, and other components. The cylinder end cap is used to seal the gas transmitted from the cylinder outlet. Basically, all cylinder end caps and gear brackets are two separate parts. An outlet hose extends from the cylinder end cap. Metal cylinder end caps also extend an outlet to mount the sensor bracket, and then the pressure sensor board is mounted on the sensor bracket. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a compact air pump core, in which the gear bracket and cylinder end cover are integrally injection molded metal parts, greatly increasing the volume and surface area of ​​the part and significantly improving heat dissipation. At the same time, the cylinder body and the pagoda-shaped air pipe head are integrally injection molded, saving the total number of parts, reducing the number of molds, saving the overall cost of the pump core, and facilitating installation and disassembly; thus solving the technical problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a compact air pump core, including: a motor, an end cover bracket assembly, and a cylinder assembly; the end cover bracket assembly includes an integrally formed gear bracket and a cylinder end cover, and the end cover bracket assembly is a metal part; the cylinder end cover is integrally extended from one end of the gear bracket to form an L-shape, and a sensor bracket is fixedly installed on the side of the cylinder end cover. The sensor bracket is a hard plastic part used to install a pressure sensor; the cylinder assembly includes an integrally formed cylinder body and a pagoda-shaped air pipe head, and the pagoda-shaped air pipe head is integrally extended from the outer side of the cylinder body. The cylinder assembly is made of metal; the gear bracket and the cylinder end cover are integrally injection molded metal parts, which greatly increases the volume and surface area of ​​the part, significantly improves the heat dissipation effect, and saves the total number of parts and reduces the number of molds; at the same time, the cylinder body and the pagoda-shaped air pipe head are integrally injection molded, which saves the total number of parts, reduces the number of molds, saves the overall cost of the pump core, and facilitates installation and disassembly;

[0005] The cylinder end cap is installed at the air outlet end of the cylinder body. The cylinder end cap has an end cap air passage that communicates with the air outlet of the cylinder body. An air outlet pipe head that communicates with the end cap air passage extends integrally from the outer side of the cylinder end cap. The air outlet pipe head is connected to the pagoda air pipe head. The end of the pagoda air pipe head is connected to an air outlet hose that extends along its axial direction. The cylinder body, the end cap air passage, the air outlet pipe head, the pagoda air pipe head, and the air outlet hose form a U-shaped air passage.

[0006] Preferably, the end cap bracket assembly includes an integrally injection-molded gear bracket, cylinder end cap, and sensor bracket; in this case, the end cap bracket assembly is an integrally injection-molded rigid plastic part, which further reduces the total number of parts, reduces the number of molds, saves the overall cost of the pump core, and facilitates installation and disassembly.

[0007] Preferably, the system further includes a piston rod and a gear assembly. The piston head at the front end of the piston rod is slidably mounted in the cylinder. The gear assembly includes a driving gear and a driven gear that mesh with each other. The motor output shaft is fixedly connected to the driving gear. The driven gear is rotatably mounted on the side of the gear bracket. The end of the piston rod is rotatably connected to the side of the driven gear at an eccentric position. After the motor starts, it drives the driving gear and the driven gear to rotate synchronously, thereby driving the piston head at the front end of the piston rod to reciprocate in the cylinder, realizing the high-pressure gas output of the air pump.

[0008] Preferably, the motor is fixedly mounted on the side of the gear bracket, the gear assembly and the motor are located on opposite sides of the gear bracket, and the motor and the gear bracket are T-shaped to facilitate heat dissipation of the gear bracket under the blowing of the cooling fan.

[0009] Preferably, the motor is a bidirectional motor, and the other output end of the motor is connected to a cooling fan. The exhaust hose and the pagoda-shaped air pipe head are located directly in front of the airflow generated by the cooling fan, thereby achieving convenient and efficient heat dissipation for the exhaust hose and the pagoda-shaped air pipe head.

[0010] Preferably, a sealing groove is provided on the outer side of the cylinder outlet end, and a sealing ring is installed in the sealing groove; the sealing ring is located on the inner side wall of the cylinder end cover to ensure a good seal.

[0011] Preferably, the lugs on the outer side of the cylinder body are fastened to the cylinder end cover by screws to ensure a stable connection between the cylinder body and the cylinder end cover.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The gear bracket and cylinder end cover of this utility model are integrally injection molded metal parts, which greatly increases the volume and surface area of ​​the parts, significantly improves the heat dissipation effect, and saves the total number of parts and reduces the number of molds. At the same time, the cylinder body and the pagoda air pipe head are integrally injection molded, which saves the total number of parts, reduces the number of molds, saves the overall cost of the pump core, and facilitates installation and disassembly.

[0014] 2. The gear bracket, cylinder end cover and sensor bracket of this utility model are integrated injection molded parts, which saves the total number of parts, reduces the number of molds, saves the overall cost of pump core, and facilitates installation and disassembly.

[0015] 3. The motor and gear bracket of this utility model are T-shaped; the motor is a bidirectional motor, and the other output end of the motor is connected to a cooling fan. The air outlet hose and the pagoda air pipe head are located directly in front of the airflow formed by the cooling fan; thus achieving convenient and efficient heat dissipation for the air outlet hose and the pagoda air pipe head. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a compact air pump core provided for an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 A schematic diagram of the structure for installing the motor and cooling fan.

[0019] Figure 3 for Figure 2 Vertical sectional view.

[0020] Figure 4 This is a schematic diagram of the structure of the end cap bracket assembly of this utility model.

[0021] Figure 5 This is a schematic diagram of the piston rod installed inside the cylinder assembly in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Motor, 11-Cooling fan, 21-Gear bracket, 22-Cylinder end cover, 221-End cover air passage, 222-Outlet pipe head, 23-Sensor bracket, 31-Cylinder body, 311-Sealing groove, 312-Ear block, 32-Pagoda air pipe head, 4-Outlet hose, 51-Piston rod, 52-Driving gear, 53-Driven gear. Detailed Implementation

[0024] 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.

[0025] Example 1:

[0026] like Figures 1 to 5 As shown, this embodiment provides a compact air pump core, including: a motor 1, an end cap bracket assembly, and a cylinder assembly. The end cap bracket assembly includes an integrally injection-molded gear bracket 21 and a cylinder end cap 22, and the end cap bracket assembly is a metal part; the cylinder end cap 22 extends integrally from one end of the gear bracket 21, forming an L-shape, and a sensor bracket 23 is fixedly mounted on the side of the cylinder end cap 22. The sensor bracket 23 is a rigid plastic part used to mount a pressure sensor. The cylinder assembly includes an integrally molded cylinder body 31 and a pagoda-shaped air pipe head 32, and the cylinder assembly is made of metal; the pagoda-shaped air pipe head 32 extends integrally from the outer side of the cylinder body 31. The gear bracket 21 and the cylinder end cover 22 are integrally injection molded metal parts. As the most important heat dissipation component, the cylinder end cover 22 often cannot achieve the best effect due to its own size and heat dissipation surface area, resulting in high gas temperature. By combining the cylinder end cover 22 and the gear bracket 21 into one part using metal material, the volume and surface area of ​​the part are greatly increased, significantly improving the heat dissipation effect and saving the total number of parts and reducing the number of molds. At the same time, the cylinder body 31 and the pagoda air pipe head 32 are integrally injection molded, saving the total number of parts, reducing the number of molds, saving the overall cost of the pump core, and facilitating installation and disassembly. The cylinder end cap 22 is installed at the air outlet end of the cylinder body 31. The cylinder end cap 22 is provided with an end cap air passage 221 that communicates with the air outlet of the cylinder body 31. An air outlet head 222 that communicates with the end cap air passage 221 is integrally extended on the outer side of the cylinder end cap 22. The end of the pagoda air outlet head 32 is connected to an air outlet hose 4 that extends along its axial direction. The air outlet head 222 is connected to the pagoda air outlet head 32. The cylinder body 31, the end cap air passage 221, the air outlet head 222, the pagoda air outlet head 32, and the air outlet hose 4 form a U-shaped air passage.

[0027] For further details, please refer to Figure 2 and Figure 3 As shown, the end cover bracket assembly includes an integrally injection-molded gear bracket 21, a cylinder end cover 22, and a sensor bracket 23. At this time, the end cover bracket assembly is an integrally injection-molded part of hard plastic, which saves the total number of parts, reduces the number of molds, saves the overall cost of the pump core, and facilitates installation and disassembly.

[0028] For further details, please refer to Figures 1 to 3 As shown, it also includes a piston rod 51 and a gear assembly. The piston head at the front end of the piston rod 51 is slidably mounted in the cylinder body 31. The gear assembly includes a driving gear 52 and a driven gear 53 that mesh with each other. The output shaft of the motor 1 is fixedly connected to the driving gear 52. The driven gear 53 is rotatably mounted on the side of the gear bracket 21. The end of the piston rod 51 is rotatably connected to the side of the driven gear 53 at an eccentric position. After the motor 1 is started, it drives the driving gear 52 and the driven gear 53 to rotate synchronously, thereby driving the piston head at the front end of the piston rod 51 to reciprocate in the cylinder body 31, realizing the high-pressure gas output of the air pump.

[0029] For further details, please refer to Figure 1 As shown, motor 1 is fixedly mounted on the side of gear bracket 21. The gear assembly and motor 1 are located on opposite sides of gear bracket 21, and motor 1 and gear bracket 21 are T-shaped, which facilitates the cooling of gear bracket 21 under the airflow of cooling fan 11. Furthermore, motor 1 is a bidirectional motor, with its other output end connected to cooling fan 11. The exhaust hose 4 and the pagoda-shaped air pipe head 32 are located directly in front of the airflow generated by cooling fan 11, achieving convenient and efficient cooling of exhaust hose 4 and pagoda-shaped air pipe head 32.

[0030] For further details, please refer to Figure 5 As shown, a sealing groove 311 is provided on the outer side of the air outlet end of the cylinder 31, and a sealing ring is installed in the sealing groove 311. The sealing ring is located on the inner side wall of the cylinder end cover 22 to ensure good sealing.

[0031] For further details, please refer to Figure 2 As shown, the lug 312 on the outer side of the cylinder body 31 is fastened to the cylinder end cover 22 by screws to ensure a stable connection between the cylinder body 31 and the cylinder end cover 22.

[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A compact air pump core, characterized in that, include: Motor (1), end cover bracket assembly and cylinder assembly; The end cap bracket assembly includes an integrally formed gear bracket (21) and a cylinder end cap (22). The cylinder end cap (22) is integrally extended from one end of the gear bracket (21) to form an L-shape. A sensor bracket (23) is fixedly installed on the side of the cylinder end cap (22). The cylinder assembly includes an integrally formed cylinder body (31) and a pagoda-shaped air pipe head (32), with the outer side of the cylinder body (31) integrally extended to connect to the pagoda-shaped air pipe head (32). The cylinder end cap (22) is installed at the air outlet end of the cylinder body (31). The cylinder end cap (22) is provided with an end cap air passage (221) that communicates with the air outlet of the cylinder body (31). An air outlet head (222) that communicates with the end cap air passage (221) is integrally extended on the outer side of the cylinder end cap (22). The air outlet head (222) is connected to the pagoda air head (32). The end of the pagoda air head (32) is connected to an air outlet hose (4) that extends along its axial direction. The cylinder body (31), the end cap air passage (221), the air outlet head (222), the pagoda air head (32), and the air outlet hose (4) form a U-shaped air passage.

2. A compact air pump impeller as claimed in claim 1, wherein, The end cap bracket assembly includes an integrally injection-molded gear bracket (21), a cylinder end cap (22), and a sensor bracket (23).

3. A compact air pump impeller according to claim 1 or 2, characterized in that It also includes a piston rod (51) and a gear assembly. The piston head at the front end of the piston rod (51) is slidably mounted in the cylinder (31). The gear assembly includes a driving gear (52) and a driven gear (53) that mesh with each other. The output shaft of the motor (1) is fixedly connected to the driving gear (52). The driven gear (53) is rotatably mounted on the side of the gear bracket (21). The end of the piston rod (51) is rotatably connected to the side of the driven gear (53) at an eccentric position.

4. A compact air pump impeller as claimed in claim 3, wherein, The motor (1) is fixedly installed on the side of the gear bracket (21). The gear assembly and the motor (1) are located on opposite sides of the gear bracket (21). The motor (1) and the gear bracket (21) are T-shaped.

5. A compact air pump impeller as claimed in claim 4, wherein, The motor (1) is a bidirectional motor. The other output end of the motor (1) is connected to the cooling fan (11). The air outlet hose (4) and the pagoda air pipe head (32) are located directly in front of the airflow formed by the cooling fan (11).

6. A compact air pump impeller as defined in claim 1, wherein, The cylinder body (31) has a sealing groove (311) on the outer side of the air outlet end, and a sealing ring is installed in the sealing groove (311).

7. A compact air pump impeller as defined in claim 1, wherein, The lug (312) on the outside of the cylinder body (31) is fastened to the cylinder end cap (22) by screws.

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