JPH01141978U

JPH01141978U -

Info

Publication number: JPH01141978U
Application number: JP3329588U
Authority: JP
Priority date: 1988-03-15
Filing date: 1988-03-15
Publication date: 1989-09-28

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例を示す要部破断面
表示の分解斜視図、第２図は、その断面図、第３
図は、本考案が使用されるマイコン制御自動イン
クジエツト標示システムのブロツク図、第４図は
、そのノズルヘツドセツトを示す斜視図、第５図
は、その電磁弁ユニツトの内部構造を示す斜視図
、第６図は、従来技術である米国特許の電磁弁を
示す断面図、第７図は、従来技術である前出願の
電磁弁を示す断面図である。１…電磁弁、２…ケーシング、３…誘導コイル
、４…誘導固定栓、５…誘導リング、６…ばね座
、７…弁座、７ａ…ダイヤフラム、８…圧縮ばね
、９…弁座本体、２０…小径部、２２…シリンダ
、２４…前かしめ部、２６…後かしめ部、４０…
円柱部、４２…当接面、５０…中央孔、６０…ば
ね座孔、７０…フランジ、７０ａ…密着面、７２
…当接面、７４…係着溝、７４ａ…係着突条、９
０…弁座前部、９１…弁座後部、９２…流入管、
９３…流出管、９４…挾着溝、９５…密着リング
。 FIG. 1 is an exploded perspective view showing an embodiment of the present invention with a broken surface of the main parts, FIG. 2 is a sectional view thereof, and FIG.
Fig. 4 is a block diagram of a microcomputer-controlled automatic inkjet marking system in which the present invention is used; Fig. 4 is a perspective view showing its nozzle head set; Fig. 5 is a perspective view showing the internal structure of its solenoid valve unit; FIG. 6 is a sectional view showing a conventional solenoid valve of the US patent, and FIG. 7 is a sectional view of a prior art solenoid valve of the previous application. 1... Solenoid valve, 2... Casing, 3... Induction coil, 4... Induction fixing plug, 5... Induction ring, 6... Spring seat, 7... Valve seat, 7a... Diaphragm, 8... Compression spring, 9... Valve seat body, 20...Small diameter part, 22...Cylinder, 24...Front caulking part, 26...Rear caulking part, 40...
Cylindrical part, 42... Contact surface, 50... Center hole, 60... Spring seat hole, 70... Flange, 70a... Close contact surface, 72
...Abutting surface, 74...Engaging groove, 74a...Engaging protrusion, 9
0... Valve seat front part, 91... Valve seat rear part, 92... Inflow pipe,
93... Outflow pipe, 94... Clamping groove, 95... Close ring.

Claims

[Scope of Claim for Utility Model Registration] 1. A solenoid valve that employs a diaphragm and has a casing made of a non-magnetic material, comprising a power supply means for supplying and cutting off operating power, a casing made of a non-magnetic material, and both ends thereof. are respectively connected to the power supply means, and the induction coil is wound in large quantities around a predetermined outer peripheral position of the casing, and the induction coil is inserted into the rear end of the casing to determine the direction of the electromagnetic force when the induction coil is energized. , a reinforcing fixing plug, a valve stem made of a magnetic material so as to fit loosely into the casing, and sliding so that its rear end surface comes into contact with and separates from the front end surface of the guiding fixing plug, and a resilient a diaphragm molded from a flexible material and attached to the front end surface of the valve stem, and a biasing mechanism that constantly biases the valve stem to separate it from the guiding fixing stopper;
A valve seat body that clamps the outer peripheral edge of the diaphragm and forms a valve chamber, which is a sealed space isolated from the valve stem, between the diaphragm and the valve chamber. The inflow pipe communicates with the valve chamber, and the rear end opening, which also passes through the valve seat body and communicates with the valve chamber and projects into the valve chamber, receives biasing pressure from the biasing mechanism when the power is not energized, and the front end surface of the diaphragm When the induction coil is energized by the power supply means, the valve stem approaches the induction fixing stopper under the action of electromagnetic force.
When the diaphragm attached to the front end surface of the valve stem releases fluid from the rear end opening of the outflow pipe and the induction coil is de-energized by the power supply means, the diaphragm is energized by the biasing pressure of the biasing mechanism. As the valve stem is returned, the front end surface of the diaphragm contacts and seals the rear end opening of the outflow pipe.
A diaphragm type solenoid valve that is characterized by stopping fluid outflow. 2. The biasing mechanism includes a compression spring that is loosely mounted on the outer circumferential surface of the valve stem, a flange that extends in the radial direction on the outer circumferential edge of the front end surface of the valve stem, and a flange that is fitted into the casing and that is attached to the valve stem. 2. The diaphragm type solenoid valve according to claim 1, further comprising a spring seat that elastically seats a compression spring between the flange and the flange by allowing the spring seat to pass freely through the center thereof. 3. The diaphragm type electromagnetic valve according to claim 1, wherein the outflow pipe has a rear end opening that projects into the valve chamber as a tight ring formed of an elastic material.