CN-224229336-U - Electromagnetic valve for oxygenerator and oxygenerator

Abstract

The utility model discloses an electromagnetic valve for an oxygenerator and the oxygenerator, and relates to the technical field of oxygenerators. The valve is characterized by comprising a valve body, a valve rod and a valve seat, wherein a valve cavity, an air inlet, a working port and an air outlet which are respectively communicated with the valve cavity are arranged in the valve body, an upper opening and a lower opening are respectively arranged at two ends of the valve cavity, the valve seat is embedded into the valve cavity from the lower opening, and an air inlet channel which is communicated with the air inlet and the valve cavity is arranged in the valve seat. According to the utility model, the air inlet channel is arranged in the valve seat, then the valve seat is independently machined, and meanwhile, the valve cavity is through, so that the machining difficulty of the valve seat and the valve body can be reduced, the machining precision is improved, the assembly is convenient, and the production efficiency is improved.

Inventors

• HAN CHUNLEI
• LI SHAOJUN

Assignees

• 苏州市泰丰精密模具有限公司

Dates

Publication Date

20260512

Application Date

20250627

Claims (10)

1. 1. The electromagnetic valve for the oxygenerator is characterized by comprising a valve body, a valve rod and a valve seat, wherein a valve cavity, an air inlet, a working port and an air outlet which are respectively communicated with the valve cavity are arranged in the valve body, an upper opening and a lower opening are respectively arranged at two ends of the valve cavity, the valve seat is embedded into the valve cavity from the lower opening, and an air inlet channel which is communicated with the air inlet and the valve cavity is arranged in the valve seat.
2. 2. The electromagnetic valve for an oxygen generator according to claim 1, wherein the intake passage includes an axial air passage arranged axially along the valve stem and a radial air passage communicating with the axial air passage.
3. 3. The electromagnetic valve for an oxygen generator according to claim 2, wherein the intake passage includes a plurality of radial air passages arranged around the axial air passage.
4. 4. The electromagnetic valve for an oxygen generator according to claim 3, wherein an air inlet ring groove communicated with a plurality of radial air passages is formed in the outer side wall of the valve seat, and the air inlet ring groove is communicated with the air inlet.
5. 5. The electromagnetic valve for the oxygen generator according to claim 2, wherein the inner end surface of the axial air passage is provided with a guide hole which is in clearance fit with the end part of the valve rod.
6. 6. The electromagnetic valve for an oxygen generator according to claim 2, wherein the valve chamber includes a working chamber communicating the axial passage and the working port, and an exhaust chamber communicating the working chamber and the exhaust port; A valve positioned in the working cavity is arranged on the valve rod; an air inlet valve port matched with the valve is arranged at the opening of the axial passage, and an air outlet valve port matched with the valve is arranged in the working chamber.
7. 7. The electromagnetic valve for the oxygen generator of claim 6, wherein the valve rod is further provided with a control diaphragm, the control diaphragm closes an upper opening of the valve cavity, the valve cavity further comprises a yielding chamber matched with the control diaphragm, and the yielding chamber is communicated with the exhaust chamber.
8. 8. The electromagnetic valve for the oxygen generator according to claim 7, further comprising an upper cover for pressing the edge of the control diaphragm and a pilot electromagnetic valve arranged on the upper cover, wherein a control chamber opposite to the control diaphragm and a control air passage for communicating the control chamber and the pilot electromagnetic valve are arranged in the upper cover; After the pilot electromagnetic valve is electrified, gas is injected into the control chamber, so that the control diaphragm deforms and then drives the valve rod to move in a direction away from the upper cover, and the valve opens the exhaust valve port and moves to close the air inlet valve port; After the pilot electromagnetic valve is powered off, gas in the control cavity is discharged, the pressure difference on two sides of the control diaphragm promotes the recovery deformation of the control diaphragm, the control diaphragm drives the valve rod to move along the direction close to the upper cover, and then the valve opens the air inlet valve port and moves to close the air outlet valve port.
9. 9. The electromagnetic valve for an oxygen generator according to claim 7, wherein the control diaphragm is provided with a reinforcing ring portion, the reinforcing ring portion is formed with a protrusion on a side facing the control chamber, and a groove is formed on a side facing the relief chamber.
10. 10. An oxygenerator comprising the electromagnetic valve for oxygenerator according to any one of claims 1 to 9.

Description

Electromagnetic valve for oxygenerator and oxygenerator Technical Field The utility model relates to the technical field of oxygenerators, in particular to an electromagnetic valve for an oxygenerator and the oxygenerator. Background The prior Chinese patent with the publication number of CN111255924A discloses a pneumatic combination valve for prolonging the service life of a molecular sieve oxygen production system, which comprises a pilot electromagnetic valve, a valve body, a cover plate, a push rod assembly and a reset spring, wherein an air inlet for inputting air, an air outlet for discharging nitrogen and an A port and a B port which are respectively connected with the molecular sieve system are formed in the valve body, the air inlet, the air outlet, the A port and the B port are all positioned on the side surface of the valve body, a containing cavity for containing the push rod assembly is formed in the central area of the valve body, the push rod assembly divides the containing cavity into a first containing cavity and a second containing cavity, the air outlet is communicated with the first containing cavity, and the A port and the B port are respectively communicated with the second containing cavity. However, the pneumatic combination valve in the above patent has the problems that one end of the accommodating cavity is closed, so that the processing difficulty of the valve body is high, and the assembly efficiency and quality are affected. Disclosure of utility model Aiming at the defects of the prior art, one of the purposes of the utility model is to provide an electromagnetic valve for an oxygen generator, which is used for arranging an air inlet channel in a valve seat and then processing the valve seat independently, and meanwhile, a valve cavity is arranged in a penetrating way, so that the processing difficulty of the valve seat and a valve body can be reduced simultaneously, the processing precision is improved, the assembly is convenient, and the production efficiency is improved. In order to achieve the above purpose, the present utility model provides the following technical solutions: The electromagnetic valve for the oxygenerator comprises a valve body, a valve rod and a valve seat, wherein a valve cavity, an air inlet, a working port and an air outlet which are respectively communicated with the valve cavity are arranged in the valve body, an upper opening and a lower opening are respectively arranged at two ends of the valve cavity, the valve seat is embedded into the valve cavity from the lower opening, and an air inlet channel which is communicated with the air inlet and the valve cavity is arranged in the valve seat. Further, the air inlet passage comprises an axial air passage axially arranged along the valve rod and a radial air passage communicated with the axial air passage. Further, the intake passage includes a plurality of radial air passages arranged around the axial air passage. Further, an air inlet ring groove communicated with a plurality of radial air passages is formed in the outer side wall of the valve seat, and the air inlet ring groove is communicated with the air inlet. Further, a guide hole in clearance fit with the end part of the valve rod is formed in the inner end surface of the axial air passage. Further, the valve cavity comprises a working chamber communicated with the axial channel and the working port, and an exhaust chamber communicated with the working chamber and the exhaust port; A valve positioned in the working cavity is arranged on the valve rod; an air inlet valve port matched with the valve is arranged at the opening of the axial passage, and an air outlet valve port matched with the valve is arranged in the working chamber. Further, a control diaphragm is arranged on the valve rod, the control diaphragm closes the upper opening of the valve cavity, the valve cavity further comprises a yielding chamber matched with the control diaphragm, and the yielding chamber is communicated with the exhaust chamber. The electromagnetic valve for the oxygenerator further comprises an upper cover for pressing the edge of the control diaphragm and a pilot electromagnetic valve arranged on the upper cover, wherein a control chamber opposite to the control diaphragm and a control air passage for communicating the control chamber and the pilot electromagnetic valve are arranged in the upper cover; After the pilot electromagnetic valve is electrified, gas is injected into the control chamber, so that the control diaphragm deforms and then drives the valve rod to move in a direction away from the upper cover, and the valve opens the exhaust valve port and moves to close the air inlet valve port; After the pilot electromagnetic valve is powered off, gas in the control cavity is discharged, the pressure difference on two sides of the control diaphragm promotes the recovery deformation of the control diaphragm, the control diaphragm drives the valve rod to mov