CN-224200770-U - Multifunctional cylinder device and air pump

Abstract

The embodiment of the utility model discloses a multifunctional air cylinder device and an air pump, and relates to the technical field of air inflation equipment, wherein the multifunctional air cylinder device comprises an air cylinder main body, a valve core, a check valve, an air connection nozzle and an air pressure detection circuit board; the air cylinder comprises an air cylinder body, a check valve, an air receiving nozzle, a valve core, an air pressure detection circuit board and a third groove body, wherein the air cylinder body is provided with a first groove body, a second groove body and a third groove body which are communicated with each other, the bottom of the first groove body is provided with an air passing hole which is communicated with an air cavity of the air cylinder body, the check valve is arranged in the first groove body and is positioned at one side of the air passing hole, the air receiving nozzle is arranged at the opening of the first groove body in a sealing mode and is abutted to the check valve, the valve core is arranged in the second groove body, and the air pressure detection circuit board is sealed and covered on the opening of the third groove body. The multifunctional cylinder device is integrated with the air pressure detection, air leakage and the check valve, and can realize the functions of air pressure detection and air leakage without external devices, thereby greatly saving the cost and reducing the quantity of materials.

Inventors

• CHEN BINBIN
• Kang Houjia
• YE XUEQIANG

Assignees

• 骑记(深圳)科技有限公司

Dates

Publication Date

20260505

Application Date

20250411

Claims (10)

1. 1. A multifunctional cylinder device is characterized by comprising a cylinder main body, a valve core, a check valve, an air connecting nozzle and an air pressure detection circuit board, wherein the cylinder main body is provided with a first groove body, a second groove body and a third groove body which are communicated with each other, an air passing hole which is communicated with an air cavity of the cylinder main body is formed in the bottom of the first groove body, the check valve is arranged in the first groove body and is positioned on one side of the air passing hole, the air connecting nozzle is arranged at the opening of the first groove body in a sealing mode and is in butt joint with the check valve, the valve core is arranged in the second groove body, and the air pressure detection circuit board is sealed and covers the opening of the third groove body.
2. 2. The multi-function cylinder device of claim 1, further comprising a first seal ring compressed between the nipple and the first channel.
3. 3. The multifunctional cylinder device according to claim 2, wherein a first installation sinking table is arranged on the upper end face of the first groove body, an ear part is arranged on the outer side of the air receiving nozzle in a protruding mode, and the first sealing ring is sleeved on the air receiving nozzle and is extruded between the ear part and the first installation sinking table.
4. 4. The multi-function cylinder device of claim 2, wherein the nipple is threadably coupled to the first slot.
5. 5. A multi-function cylinder device as claimed in claim 2, wherein the air receiving nozzle is provided with internal threads.
6. 6. The multifunctional cylinder device according to claim 2, wherein the check valve comprises an elastic member and a sealing block, the sealing block is arranged at one end of the elastic member and is blocked on the air passing hole, and the other end of the elastic member is abutted with the air receiving nozzle.
7. 7. The multifunctional cylinder device of claim 6, wherein a boss is arranged at the bottom end of the air receiving nozzle, one end of the elastic piece is sleeved on the boss, and ribs which are in contact with the elastic piece are arranged on the inner side of the first groove body.
8. 8. The multifunctional cylinder device of claim 1, further comprising a second sealing ring, wherein a second installation sinking table is arranged on the upper end face of the third groove body, and the second sealing ring is tightly pressed between the air pressure detection circuit board and the second installation sinking table.
9. 9. The multifunctional cylinder device of claim 8, wherein an air pressure sensor is arranged on the inner side of the air pressure detection circuit board, and the air pressure detection circuit board is connected with the side wall of the third groove body through a fastener.
10. 10. An air pump comprising a multi-functional cylinder device according to any one of claims 1 to 9.

Description

Multifunctional cylinder device and air pump Technical Field The utility model relates to the technical field of inflation equipment, in particular to a multifunctional air cylinder device and an air pump. Background The air pump device is widely applied in the industrial and civil fields, the pressure relief and air pressure detection functions are used as key technical links for guaranteeing the safe operation of the device, and the traditional implementation scheme has systematic defects. The traditional technical scheme generally adopts a discrete structural design, and the pressure relief function and the air pressure detection function are respectively implemented as independent modules, so that the whole system has structural redundancy and use defects. In the aspect of realizing the pressure relief function, the conventional scheme completes pressure release through an externally connected air pipe or air tap with the pressure relief function. The split design makes the pressure release structure not integrated with the air pump body, so that additional connection operation is needed, and the risk of accessory loss is increased remarkably. More notably, the pressure release components which are independently arranged need to be independently designed and manufactured, and the production cost and the assembly complexity are objectively improved. In the aspect of air pressure detection, an external pressure sensing pipeline is commonly adopted in the prior art. According to the scheme, a special detection channel is additionally arranged outside the gas circuit system, so that the pipeline layout is complicated, and the manufacturing cost is increased due to the fact that additional sealing interfaces and connecting parts are required to be configured. Particularly in compact equipment applications, external detection lines can also cause space adaptation problems. Based on the above analysis, it is needed to develop a novel air pump structure, which realizes the collaborative work of pressure relief and detection through the function integration design. The ideal technical scheme is to effectively solve the problems of inconvenient operation, high cost, insufficient reliability and the like caused by the existing discrete structure, and simultaneously ensure the timeliness of pressure regulation and control and the accuracy of detection data. The method has important engineering application value for improving the safety performance and the use experience of the air pump equipment. Disclosure of utility model The embodiment of the utility model provides a multifunctional air cylinder device and an air pump, which aim to solve at least one technical problem in the background technology. In order to solve the problems, in a first aspect, an embodiment of the utility model provides a multifunctional cylinder device, which comprises a cylinder main body, a valve core, a check valve, an air connection nozzle and an air pressure detection circuit board, wherein the cylinder main body is provided with a first groove body, a second groove body and a third groove body which are mutually communicated, the bottom of the first groove body is provided with an air passing hole communicated with an air cavity of the cylinder main body, the check valve is arranged in the first groove body and is positioned at one side of the air passing hole, the air connection nozzle is hermetically arranged at the opening of the first groove body and is in butt joint with the check valve, the valve core is arranged in the second groove body, and the air pressure detection circuit board is hermetically sealed on the opening of the third groove body. The multifunctional cylinder device further comprises a first sealing ring, wherein the first sealing ring is tightly pressed between the air receiving nozzle and the first groove body. The further technical scheme is that the upper end face of the first groove body is provided with a first installation sinking table, the outer side of the air receiving nozzle is convexly provided with an ear, and the first sealing ring is sleeved on the air receiving nozzle and is extruded between the ear and the first installation sinking table. The further technical scheme is that the air receiving nozzle is in threaded connection with the first groove body. The further technical scheme is that the air receiving nozzle is provided with internal threads. The check valve comprises an elastic piece and a sealing block, wherein the sealing block is arranged at one end of the elastic piece and is blocked on the air passing hole, and the other end of the elastic piece is in butt joint with the air receiving nozzle. The air tap is characterized in that a boss is arranged at the bottom end of the air tap, one end of the elastic piece is sleeved on the boss, and ribs in contact with the elastic piece are arranged on the inner side of the first groove body. The multifunctional cylinder device further comprises