KR20020081638A - Form power of recollection spring to use solenoid valae - Google Patents

Abstract

PURPOSE: A solenoid valve is provided to prevent the malfunctioning of a valve by restraining the inflow of water to a cover housing, to avoid the defect in operation due to the sticking of foreign matters in a diaphragm by excluding a fine inlet hole or an outlet hole, and to cut down the cost of production by simplifying the manufacturing process and reducing the number of components. CONSTITUTION: A recessed groove(111) having an upper opening is formed in the upper surface of a valve box(110). A discharge hole(112) is vertically penetrated through the center of the bottom surface of the recessed groove. On the side of the valve box, an inlet hole(114) having a communication hole(113) communicated with the circumference of the recessed groove is horizontally formed. A closing ledge(115) is formed on the bottom surface of the recessed groove. A diaphragm(120) for opening the discharge hole by elastically contracting is combined to close the opening of the recessed groove. A cover housing(140) having an opening and closing unit(130) for opening and closing the discharge hole by using the diaphragm is prepared in the upper portion of the valve box.

Description

Solenoid valves {FORM POWER OF RECOLLECTION SPRING TO USE SOLENOID VALAE}

The present invention relates to a solenoid valve, and more particularly to a solenoid valve configured to open and close the valve by a shape memory spring that is expanded or contracted by heat.

In general, the conventional solenoid valve 10 is inserted and fixedly coupled to the opening and closing shaft 22 in which the opening and closing shaft 21 of the solenoid 20 is vertically transferred according to the supply of the power current as shown in FIG. The upper opening recessed groove 12 having the stepped portion 12a on the upper surface of the valve box 11 is formed to a predetermined depth, and penetrates to the bottom surface of the valve box 11 on the center of the bottom surface of the recessed groove 12. A discharge rib 14 having a discharge hole 13 is formed to protrude to a predetermined height, one side of the valve box 11 is formed with an inlet hole 15 which communicates with the side of the concave groove 12, The edge of the packing 16 having the coupling hole 16a at the center and the periphery is fixedly coupled to the stepped portion 12a of the recessed groove 12, and the packing 16 has a discharge hole 17a at the center and the periphery, respectively. Opening and closing plate 17 on which coupling protrusion 17a having ') and coupling protrusion 17b having inlet hole 17b' are formed Is combined.

In the conventional solenoid valve 10 configured as described above, the lower end of the opening / closing shaft 21 is normally closed while pressing the discharge hole 17a of the opening / closing plate 17 by the elastic force of the spring 24, and at the same time the opening / closing plate ( 17 pushes the packing 16 to block the inlet of the discharge rib 14 so that water introduced into the inlet groove 12 through the inlet hole 17b 'of the opening and closing plate 17 is discharge hole 17a'. It will prevent the discharge through.

In this state, when a power current is supplied to the magnetic field coil 23 of the solenoid 20, the opening and closing shaft that seals the discharge hole 17a 'of the opening and closing plate 17 by the magnetic force of the magnetic field coil 23 is provided. 21 is moved above the center of the magnetic field coil 23, and is separated from the inlet of the discharge hole 17a 'of the opening and closing plate 17, and then the water introduced through the inlet 15 is lifted by the packing 16. It is raised and discharged into the discharge hole 13 through the packing 16 and the discharge rib 14 inlet.

However, the conventional solenoid valve 10 configured as described above has an opening and closing plate 17 and a packing 16 for shielding the shape of the inlet hole 15 through which the water is introduced and the outlet hole 13 through which the water is discharged, and the water passage. As the shape of the product is strange, the molding of the product is difficult, as well as the number of parts increases, thus increasing the cost of the product.

In addition, the conventional solenoid valve 10 has a problem that the inlet hole 17b 'and the outlet hole 17a' of the packing 16 and the opening / closing plate 17 have a small diameter so that the solenoid valve 10 may be blocked by foreign matters so as not to operate. In order to compensate for the above problems, that is, in order to increase the water pressure of water so that the opening of the packing 16 and the opening / closing plate 17 can be made smoothly, there is a problem that the solenoid valve is large in size.

In addition, the conventional solenoid valve 10 is an opening and closing shaft in which water is introduced into the inlet groove 12 through the inlet hole 17b formed in the opening and closing plate 17 so that the opening and closing shaft 21 can be elevated. 22) there is a problem that the opening and closing of the valve 10 can not be smoothly opened and closed because the foreign matter contained in the water is caught in the opening and closing shaft (21).

The present invention is controlled in view of the above problems, the object of which is to reduce the structure and volume and cost of the valve by allowing the valve to be shielded by using a memory spring that expands or contracts by heat, as well as It is an object of the present invention to provide a solenoid valve using a memory spring that is configured so that the function of the valve is not lost due to the foreign matter contained in the water controlled by the valve.

According to a feature of the present invention for achieving the above object, a concave groove having an upper opening is formed on the upper surface of the valve box, the discharge hole is formed vertically penetrating through the center of the bakdak surface of the concave groove, An inflow hole having a communication hole communicating with the peripheral edge of the bottom surface of the concave groove is formed horizontally, a bottom end of the concave groove is formed around the upper end of the discharge hole is formed, the elastic concave groove in the valve box The diaphragm for opening and closing the discharge hole is coupled to close the opening of the inlet groove, the cover housing having an opening and closing means for opening and closing the discharge hole by close or close the diaphragm to the closed end of the valve box in the upper portion of the valve box It is provided with a solenoid valve, characterized in that configured in combination.

1 is a cross-sectional view showing a conventional conventional solenoid valve.

Figure 2 is an exploded perspective view showing a solenoid valve according to an embodiment of the present invention.

Figure 3 is a cross-sectional view showing an assembled state of the solenoid valve of the present invention.

Figure 4 is a sectional view showing a state in which the valve is opened by operating the solenoid valve of the present invention.

Figure 5 is an exploded cross-sectional view showing a solenoid valve according to another embodiment of the present invention.

6 is a cross-sectional view showing an assembled state of a solenoid valve according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: solenoid valve

110: valve box 111: concave groove

112: discharge hole 113: communication hole

114: inlet hole 115: sealed step

120: diaphragm 121: close contact

130: opening and closing means 131: opening and closing shaft

131a: insertion hole 131b: bullet hole

131c: Mounting hole 131d: Gear protrusion

131e: positioning protrusion 132: restoring spring

133: elastic force adjustment cap 133a: tool insertion hole

133b: insertion hole 133c: male thread portion

134: guide fixing unit 134a: fixed part

134b: guide part 134c: stepped part

135: heat pipe 135a: power line

136: shape memory spring 140: cover housing

141: mounting groove 141a: female thread

150: unlocking means 151: slide groove

151a: locking step 151b: termination step

152: push pull core 152a: slide projection

152b: gear projection 152c: insertion hole

153: Rotating Bushing

Hereinafter, the solenoid valve of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an exploded perspective view showing a solenoid valve according to an embodiment of the present invention, Figure 3 is a cross-sectional view showing an assembled state of the solenoid valve of the present invention, Figure 6 is a cross-sectional view showing an exploded state of the solenoid valve of the present invention.

As shown, the solenoid valve 100 according to the embodiment of the present invention is formed with a recess groove 111 having an upper opening on the upper surface of the valve box 110, discharged in the center of the thin surface of the recess groove 111 A hole 112 is formed to penetrate vertically, and an inlet hole 114 having a communication hole 113 communicating with a peripheral edge of the bottom surface of the recessed groove 111 is horizontally formed at a side surface of the valve box 110. The bottom surface of the recess 111 is formed around the upper end of the discharge hole 112, a closed stepped portion 115 is formed, and elastically stretched in the recess groove 111 of the valve box 110 to the discharge hole ( The diaphragm 120 that opens and closes 112 is coupled to close the opening of the recessed groove 111, and the diaphragm 120 is connected to the closed end portion 115 of the valve box 110 at an upper portion of the valve box 110. The cover housing 140 is provided with the opening and closing means 130 for opening and closing the discharge hole 112 by close or detached Are constructed in combination.

The cover housing 140 is integrally coupled to the upper surface of the valve box 110 by bolts.

The opening and closing means 130 has an installation groove 141 is formed inside the cover housing 140, the opening and closing shaft for closely contacting the diaphragm 120 to the closed end portion 115 in the lower side of the installation groove 141. 131 is coupled to the liftable, the restoration spring 132 for pressing the opening and closing shaft 131 is inserted in the upper side of the installation groove 141, the restoration spring (top) of the installation groove 141 132 is supported and the elastic force adjustment cap 133 is coupled to adjust the elastic force of the restoring spring 132, the outer surface of the installation groove 141 and the opening and closing shaft 131 of the cover housing 140. Guide fixing portion 134 for sealing the inlet groove 111 of the valve box 110 and pressing the upper surface of the built-in diaphragm 120 to guide the lifting and lowering of the opening and closing shaft 131 between the side surfaces. It is coupled to the outer periphery of the guide fixing unit 134 to the electric The heat pipe 135 for converting the paper into thermal energy is coupled, and the shape memory spring 136, which is expanded by heat, is supported on the guide fixing portion 134 and the opening / closing shaft 131 at the outer circumference of the heat pipe 135. Are constructed in combination.

The elastic force control closing cap 133 is a cross-sectional cap shape is formed in the upper end of the tool insertion hole 133a is inserted into a tool such as a hexagon wrench, the lower opening is inserted into the upper end of the restoring spring 132 therein A ball 133b is formed, and an outer thread portion 133c is formed on the outer circumference thereof, and an inner threaded portion of the elastic force control dead cap 133 is formed on the upper inner surface of the installation recess 141 of the cover housing 140. A female screw portion 141a coupled to 133c is formed to adjust the elastic force of the restoring spring 132 according to the lifting and lowering of the elastic force adjusting cap 133.

The diaphragm 120 is not deformed or torn when the diaphragm 120 is pushed close to the closed end portion 115 of the valve box 110 while the diaphragm 120 is pushed down while the opening and closing shaft 131 is lowered. The close contact portion 121 is formed to be relatively thicker than the peripheral portion so that the diaphragm 120 is configured to easily seal the discharge hole 112 of the valve box 110.

A power line 135a is connected to the heat pipe 135, and the shielding of the power is controlled by a controller (not shown) controlling the solenoid valve 100, and the elastic force of the shape memory spring 136 is normally The elastic spring of the restoration spring 132 is smaller than the elastic force of the restoring spring 132 is expanded to receive the elastic force of the restoring spring 132, and the shape memory spring 136 is preferably formed of ().

The opening and closing shaft 131 is formed with an insertion hole 131a into which the lower side of the restoring spring 132 is fitted on the outer periphery of the upper end, and the upper end of the shape memory spring 136 on the outer periphery of the middle of the opening and closing shaft 131. The tungsten portion 131b protrudes is formed.

The guide fixing unit 134 is a guide portion 134b for fixing the rim of the diaphragm 120 embedded in the recess 111 of the valve box 110 and the opening and closing shaft to be guided. ) Is formed up and down successively, the stepped portion 134c pressed between the fixing portion 134a and the guide portion 134b by the cover housing 140 and at the same time the lower end of the shape memory spring 136 is supported. ) Are successively formed integrally.

On the other hand, the opening and closing means 130 is configured to include a lock release means 150 for maintaining the post-lifting state of the opening and closing shaft 131 in some cases.

The locking release means 150 is a locking step 151a having a slide groove 151 on the inner surface of the installation groove 141 of the cover housing 140, as shown in Figs. The release stepped part 151b is formed, and a mounting hole 131c is formed in a predetermined section on the outer circumference of the opening and closing shaft 131, and the cover housing 140 is installed in the mounting hole 131c of the opening and closing shaft 131. The slide protrusion 152a inserted into the slide groove 151 of the slide is formed at a predetermined interval on the outer circumferential surface, and a plurality of gear protrusions 152b are continuously formed at a predetermined interval on the upper end thereof, and an insertion hole 152c is formed therein. The push pull core 152 formed to penetrate up and down is fitted, and the gear protrusion 131d sequentially engaged with the gear protrusion 152b of the push pull core 152 on the outer periphery of the rear end of the opening and closing shaft 131. And the slide groove 151 is inserted into the slide at the same time A positioning protrusion 131e is formed to be sequentially engaged with the stepped portion 151a and the release stepped portion 151b so that the state after the lifting and lowering of the opening and closing shaft 131 can be maintained. It is preferable that the rotary bushing 153 is fitted to the upper end of the opening and closing shaft 131 on which the 132 is supported so as to smoothly rotate the opening and closing shaft 131.

The action of the solenoid valve of the present invention configured as described above is as follows.

Normally the solenoid valve 100 is the opening and closing shaft 131 is lowered by the elastic force of the restoring spring 132 carried on the elastic force control closing cap 133, the diaphragm 120 is closed end of the valve box 110 ( By being in close contact with 115, the discharge hole 112 is in a closed state, and the flow of water is cut off.

Then, when power is temporarily applied to the heat pipe 135 and heated, the shape memory spring 136 inserted into the heat pipe 135 expands and overcomes the elastic force of the restoration spring 132 to open and close the shaft 131. The diaphragm 120, which was closed by the opening and closing shaft 131, was closed by the hydraulic pressure of the water entering the inlet hole 114, and the drain opening was opened to open the inlet of the valve box 110. Water entering through is discharged through the drain.

At this time, the gear protrusion 152b of the push-pull core 152 transferred upward along the slide groove 151 by the opening and closing shaft 131 is engaged with the gear protrusion 131d of the opening and closing shaft 131. When the shaft 131 is rotated by one gear section, and then the power applied to the heat pipe 135 is disconnected and cooled, the restoring spring 132 is expanded while winning the elastic force of the shape memory spring 136. By slightly contracting the memory spring 136 and simultaneously lowering the opening and closing shaft 131, the positioning protrusion 131e of the lowering opening and closing shaft 131 is formed at the mounting recess 141 of the cover housing 140. It is caught by the jaw portion 151a so that the raised state of the opening and closing shaft 131 is maintained.

Subsequently, when power is temporarily applied to the heat pipe 135 again and heated, the shape memory spring 136 inserted into the heat pipe 135 that is slightly contracted is expanded to overcome the elastic force of the restoring spring 132 to open and close the opening. The gear protrusion 152b of the push-pull core 152 is moved upward by the opening and closing shaft 131 along the slide groove 151 by the opening and closing shaft 131. While engaging the protrusion 131d and rotating the opening and closing shaft 131 by one gear section again, the positioning projection 131e is formed at the locking step 151a formed in the installation recess 141 of the cover housing 140. After the power applied to the heat pipe 135 is disconnected and cooled, the restoration spring 132 contracts and expands the expanded shape memory spring 136 while overcoming the elastic force of the shape memory spring 136. Shaft (131) At this time, the positioning projection 131e of the opening and closing shaft 131 is moved downward along the slide groove 151 formed in the installation groove 141 of the cover housing 140 within the termination step portion 151b. In the operation, the opening and closing shaft 131 is continuously lowered and eventually closes the diaphragm 120 to the closed end portion 115 of the valve box 110 so that the discharge hole 112 is closed. As a result, the flow of water discharged through the discharge hole 112 is cut off.

As described above, the solenoid valve of the present invention is divided into an inlet hole and an outlet hole through which water is restored by a diaphragm coupled to the inlet groove of the valve box, such as a restoring spring, an opening / closing shaft, a heat pipe, and a shape memory spring. Since water does not flow into the cover housing, the opening and closing of the opening and closing shaft is not smoothly made due to the foreign matter contained in the water, so that the valve may not malfunction.

In addition, the diaphragm has a conventional inlet and outlet hole formed in the packing and opening and closing plate of the solenoid valve, there is an effect that can prevent the malfunction caused by the foreign matter caught in the diaphragm.

In addition, the solenoid valve by the shape memory spring of the present invention is simpler in shape and shape than the conventional solenoid valve, it can reduce the cost of the product by simplifying the number of parts and the manufacturing process when manufacturing the product, as well as repair and repair By making it simpler, there is an effect that can improve the competitiveness and convenience of the product more.

Claims (3)

A concave inlet groove 111 having an upper opening is formed on an upper surface of the valve box 110, and a discharge hole 112 is vertically penetrated through a center portion of the concave surface of the concave recess 111, and the valve box 110 is formed. In the side of the inlet hole 114 having a communication hole 113 in communication with the bottom peripheral portion of the bottom groove of the inlet groove 111 is formed horizontally, the bottom of the inlet groove 111 around the upper end of the outlet hole 112 An airtight stepped portion 115 is formed on the surface, and the diaphragm 120 for elastically expanding and opening / closing the discharge hole 112 in the recess groove 111 of the valve box 110 is an opening of the recess groove 111. It is coupled to seal the, the opening and closing means 130 for opening and closing the discharge hole 112 by close or close the diaphragm 120 to the closed end portion 115 of the valve box 110 on the upper portion of the valve box (110). The solenoid valve, characterized in that the cover housing 140 is provided is coupled. The method of claim 1, wherein the opening and closing means 130 has an installation groove 141 is formed in the cover housing 140, the diaphragm 120 in the lower side of the installation groove 141 is closed step portion 115 The opening and closing shaft 131 to be in close contact with each other is liftable, the restoration spring 132 for pressing the opening and closing shaft 131 is inserted in the upper side of the installation groove 141, the installation groove 141 The upper end portion is coupled with the restoring spring 132 and the elastic force adjustment cap 133 for adjusting the elastic force of the restoring spring 132 is coupled, opening and closing with the inner surface of the installation groove 141 of the cover housing 140 Sealing the recess groove 111 of the valve box 110 between the outer surface of the shaft 131, while pressing the upper surface of the edge of the built-in diaphragm 120 to guide the lifting of the opening and closing shaft 131 Guide fixing unit 134 is combined, and other than the guide fixing unit 134 The lead is coupled to a heat pipe 135 for converting electrical energy into heat energy, and the outer shape of the heat pipe 135 is a shape memory spring 136 that is expanded by heat guide fixing unit 134 and the opening and closing shaft 131 The solenoid valve, characterized in that coupled to be mounted on the). The method of claim 2, wherein the locking step 151a and the release step 151b having a slide groove 151 is formed on the inner surface of the installation recess 141 of the cover housing 140, and the opening and closing shaft 131 Mounting hole (131c) is formed in the outer periphery of the predetermined period, the slide projection 152a is inserted into the slide groove 151 of the cover housing 140 in the mounting hole (131c) of the opening and closing shaft (131) ) Is formed on the outer circumferential surface with a plurality of predetermined intervals, and a plurality of gear protrusions 152b are continuously formed at a predetermined interval on the upper end thereof, and a push-pull core 152 formed by inserting through holes 152c is vertically penetrated therein. On the outer periphery of the rear end of the opening and closing shaft 131 is inserted into the gear protrusion 131d and the slide groove 151 sequentially engaged with the gear protrusion 152b of the push-pull core 152 and the locking end at the same time Sequentially to the jaw portion 151a and the termination step portion 151b. Solenoid valve, characterized in that the locking projection means (150) is formed so that the positioning projection 131e is released to be retained to maintain the state after the lifting of the opening and closing shaft (131)