CN2554427Y

CN2554427Y - Air valve

Info

Publication number: CN2554427Y
Application number: CN 02267937
Authority: CN
Inventors: 张坤林
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-26
Filing date: 2002-06-26
Publication date: 2003-06-04
Anticipated expiration: 2012-06-26

Abstract

The utility model relates to an air value which overcomes the disadvantages of insufficient strength and inconvenient production of the original air value. The utility model comprises a value body, a yoke iron housing, a coil, a coil frame, a movable iron core, a piston and a spring, wherein the axial cords of the components are in the same line; the coil is wound around on the coil frame; the movable iron core is sheathed in a hollow shaft of the coil frame which is inserted in the yoke iron housing. An annular bulge on one end of the coil frame passes through a through hole of the end surface of the yoke iron housing, and is connected with the edge of the open end of the value body into a whole through the ultrasonic welding; the inner part of the value body is divided into an inner chamber and an outer chamber by a partition wall which has a through hole; the side face of the value body has two air holes which are respectively communicated with the inner chamber and the outer chamber; the piston is positioned in the outer chamber, and the spring is positioned between the piston and the partition wall. The yoke iron housing of the utility model is not necessary to form by a plurality of separate parts, thus the strength of the yoke iron housing is improved. Moreover, the desired angle between the value body and the coil frame can be adjusted before assemblage, then the ultrasonic fusion is utilized, therefore, the production is more convenient.

Description

A kind of air valve

Technical field

The utility model belongs to a kind of air valve, particularly a kind of intensity height, the air valve of easily producing.

Background technique

Existing air valve comprises valve body, the yoke housing, coil, coil carrier, movable core, piston, spring, coil encircling is on coil carrier and be embedded in the yoke housing, coil carrier and valve body are integrated, movable core is enclosed within the quill shaft of coil carrier, valve inner is divided into exocoel and inner chamber, exocoel and inner chamber communicate, there are inlet hole and air outlet hole in the valve body side, and respectively with interior, exocoel communicates, and a piston is arranged in the exocoel, and a spring is arranged between piston and the next door, during the coil no electric circuit, piston is in the outer portion of valve body exocoel under the spring force effect, the air outlet communicates with the valve body exocoel, and the gas passageway also leads to, during coil electricity, movable core promotes piston and is moving axially under magnetic force, make piston block the air outlet, and the gas passageway is blocked.The coil carrier of this air valve and valve body are integrated, and the yoke housing must be made up of several sections when assembling, therefore cause the insufficient strength of yoke housing; Secondly, because the air outlet of valve body and suction port are had different requirements with respect to the direction of yoke housing,, caused the difficulty of producing so corresponding a plurality of mould will be arranged.

The model utility content

The utility model provides a kind of air valve, has overcome original air valve insufficient strength, produces the shortcoming of inconvenience.

The utility model comprises valve body, the yoke housing, coil, coil carrier, movable core, piston, spring, their axis all is on same the straight line, coil encircling is on coil carrier, movable core is enclosed within the quill shaft of coil carrier, coil carrier is embedded in the yoke housing, the circular protrusion of coil carrier one end passes the through hole of yoke housing end face, fuse by ultrasound with the valve body openings end margin and to fuse, the inside of valve body is divided into inner chamber and exocoel by a next door, one through hole is arranged on the next door, the valve body side have two respectively with inner chamber, the pore that exocoel communicates, piston is positioned at exocoel, and spring is between piston and next door.

Piston is stair-stepping cylindrical body, and the size of its diameter major part and exocoel matches, and the diameter of its smaller portions is greater than the diameter of the through hole on the next door, and an end of spring is set on the less part of piston diameter, and the other end is set on the periphery edge of through hole.

The yoke housing is made up of yoke housing body and yoke housing end plug.

The utility model is because valve body and coil carrier are separately to be shaped, merge with ultrasound again during assembling, therefore easy for installation, the yoke housing need not be made up of a plurality of separated portions, improved the intensity of yoke housing,, can when assembling, adjust required direction earlier if the air outlet of valve body and suction port are had different requirements with respect to the direction of yoke housing, merge with ultrasound again, therefore produce convenient.

Figure of description

Accompanying drawing 1 is a cross-sectional view of the present utility model.

Accompanying drawing 2 is a right elevation of the present utility model.

Accompanying drawing 3 is an attached view of the present utility model.

Specific embodiment

An embodiment of the present utility model is achieved in that with reference to accompanying drawing 1, it is by valve body 9, yoke housing 5, coil 4, coil carrier 6, movable core 1, piston 7, spring 8, their axis all is on same the straight line, coil 4 is looped around on the coil carrier 6, movable core 1 is enclosed within the quill shaft of coil carrier 6, coil carrier 6 is embedded in the yoke housing 5, it is characterized in that: the circular protrusion 61 of coil carrier 6 one ends passes the through hole of yoke housing 5 end faces, fuse by ultrasound with valve body 9 open end edge and to fuse, the inside of valve body 9 is divided into inner chamber 91 and exocoel 92 by a next door 10, one through hole 101 is arranged on the next door 10, valve body 9 sides have two respectively with inner chamber 91, the pore 2 that exocoel 92 communicates, 3, piston 7 is positioned at exocoel 92, and spring 8 is between piston 7 and next door 10.Piston 7 is stair-stepping cylindrical body, and the size of its diameter major part and exocoel 92 matches, and the diameter of its smaller portions is greater than the diameter of through hole 101, and an end of spring 8 is set on the less part of piston 7 diameters, and the other end is set on the periphery edge of through hole 101.Yoke housing 5 is made up of yoke housing body 51 and yoke housing end plug 52.

During coil 4 no electric circuits, piston 7 is in the outer portion of valve body 9 exocoels under spring 8 elastic force effects, pore 2 is formed a gas passageway with inner chamber 91, exocoel 92 and pore 3, during coil 4 energisings, movable core 1 promotes piston 7 and is moving axially under magnetic force, make the diameter major part of piston 7 block pore 2, the end face of the smaller-diameter portion of piston 7 is blocked through hole 101, and the gas passageway is blocked.Because valve body 9 and coil carrier 6 are separately to be shaped, merge with ultrasound again during assembling, therefore easy for installation, 5 of yoke housings are made up of two-

part

51,52, improved the intensity of yoke housing 5, if pore 2,3 directions with respect to yoke housing 5 to valve body 9 have different requirements, can when assembling, adjust required direction earlier, merge with ultrasound again.

In sum, the utility model intensity height is easily produced, and is suitable for applying.

Claims

1, a kind of air valve, comprise valve body (9), yoke housing (5), coil (4), coil carrier (6), movable core (1), piston (7), spring (8), their axis all is on same the straight line, coil (4) is looped around on the coil carrier (6), movable core (1) is enclosed within the quill shaft of coil carrier (6), coil carrier (6) is embedded in the yoke housing (5), it is characterized in that: the circular protrusion (61) of coil carrier (6) one ends passes the through hole of yoke housing (5) end face, fuse by ultrasound with valve body (9) open end edge and to fuse, the inside of valve body (9) is divided into inner chamber (91) and exocoel (92) by a next door (10), one through hole (101) is arranged on the next door (10), valve body (9) side have two respectively with inner chamber (91), the pore (2) that exocoel (92) communicates, (3), piston (7) is positioned at exocoel (92), and spring (8) is positioned between piston (7) and next door (10).

2, a kind of air valve as claimed in claim 1, it is characterized in that: piston (7) is stair-stepping cylindrical body, the size of its diameter major part and exocoel (92) matches, the diameter of its smaller portions is greater than the diameter of through hole (101), one end of spring (8) is set on the less part of piston (7) diameter, and the other end is set on the periphery edge of through hole (101).

3, a kind of air valve as claimed in claim 1 is characterized in that: yoke housing (5) is made up of yoke housing body (51) and yoke housing end plug (52).