TWI223041B - Electromagnetic valve - Google Patents

Abstract

A main valve shaft 17 is able to reciprocate in an axial direction and formed in a receiving hole 16 formed in a valve casing 20. An air supply port and an air exhaust port are switched by the main valve shaft 17 to connect an output port. By electrifying a coil of a solenoid 32, a movable core 36 reciprocates axially, and a pilot valve moving in connection with the movable core 26 switches an air supply passage 39 connecting to the air supply port and an air exhaust passage 42 to connect to an output passage connecting to an air pressure 29. A manual button for operating the movable core 26 manually is disposed in the valve casing 20. A stopper 57 movable between an engaging position and a retroceding position for restricting the pressing of the manual button 51 is formed in the valve casing 20. The invention prevents a pushdown of the manual button of the electromagnetic valve by mistake.

Description

1223041 V. Description of the invention (υ The technical field to which the invention belongs, the present invention relates to a solenoid valve operated by a solenoid, in particular, to operate a pilot pressure generated by a direct-acting solenoid valve The method of the main valve shaft can be applied to the solenoid valve used in the Pilot operation method. ', The directional control valve used to control the air flow direction in the prior art is used to control the supply and stop of air pressure to *. 、 Air exhaust = control 'makes the cylinder move back and forth ^: It is two kinds of two-position valve and three kinds of three-position valve. So this kind of = two valves are operated by the movable iron core of the electromagnetic coil through the electromagnet Part 2 ^ The solenoid valve is an indirect-acting solenoid valve that uses a pilot valve to control the pressure supply to the main valve shaft, thereby controlling the pressure so that the main valve shaft can switch the guided operation mode. . This indirect-acting solenoid valve has the advantage of a main valve shaft that can be switched with a control pressure and a large switching force. There is a single sololen type solenoid valve that operates the main valve shaft with an electromagnet. Double solenoid coil (d〇uble s〇len〇id) type with two solenoids and load as the main valve shaft. Single = magnetic coil type two position valve system returns to the main valve shaft when the solenoid is de-energized. In the original position. On the one hand, although the two solenoid valve type of the two solenoid type is de-energized, the main valve shaft remains in the original position when the other solenoid is de-energized. Moreover, the double solenoid type The three-position valve system releases the solenoids on both sides when the main valve shaft is neutral. At any one of 11435pif.ptd, 223041 V. Description of the invention (2) When one of the two solenoids is energized, the main valve shaft and two The position valve operates in the same way. ^ On the other hand, the above-mentioned control valve is a direct-acting three-port valve. It can also be used as a single solenoid valve. The relationship between π is used in the early pH coil type and double Any one of the electromagnetic coil type is used as a single unit. Wei electromagnetic reading is assembled by fittings or pedestals so that the unit uses a single solenoid valve of $ 1%. It is: ί: occasion Duplex type is also the same as the coil in the electromagnetic coil section without electric valve system. In the state where the coil is not connected to the power supply, the core is actuated. In the state where the coil is not connected to the power supply, the solenoid valve 41 can be forced to be seen, and the control valve is activated by the coil. The movable iron core can be manually controlled by the manual button to force it in the S-knowledge system, so that the manual control button protrudes from the valve barrel (vaive casi's by the joke 3: 3: valve stomach '. When the manual control button is pressed, it becomes mandatory The control valve is driven by the moving iron core. In the normal use state, when the manual control button is pressed by mistake, the solenoid valve will be accidentally actuated. In addition, the control valve itself is a single body, and the three-way port of the direct-acting type Where solenoid valves are used, manual control buttons are also assembled. SUMMARY OF THE INVENTION The object of the present invention is to prevent the operation of a manual control button provided on a solenoid valve. "The solenoid valve of the present invention is characterized by including a valve cylinder, a main valve shaft, a solenoid portion, a control valve (pil0: vaive), a manual button, and a stopper. Among them, the valve The cylinder system is formed. Page 7 of 11435pif.ptd 1223041 V. Description of the invention (3) The air supply port (p0r) and the valve shaft are provided in the above-mentioned receiving hole to freely move the J exhaust port. The output port is switched to the above-mentioned supply port; the shaft direction is to make the upper port open. The electromagnetic coil is installed in the valve cylinder? Connected by the wire port Π = the movable iron core. The control room is linked to: In the axial direction, the clothes 3 are connected to the valve cylinder, so that the output path is switched to the supply. The above-mentioned movable iron is added: communication, where the 'wheel output path is connected to the containment :, and the air pressure chamber of the exhaust gas (Piston) The gas supply path is described by the piston and the gas supply port. The manual button is for reciprocating movement; the Zaziru Road is connected to the valve cylinder, and the # is pressed to make the control valve move °: type installed on the upper control The push button moves. The valve cylinder is installed to control the above-mentioned hand invention. The characteristics of the electromagnetic chamber = two control valves corresponding to the two solenoids in the space that house the pistons and the two coils of the solenoids that actuate the solenoid coils. They also have the following characteristics: from the above The main axis can move upright = the electromagnetic field of the present invention is characterized by a position or a three position.:, Switch 阙, tongue-shaped) apper valve) between the parent electromagnetic wires. Among them, the valve cylinder forms the air supply path. The control button and the system 2 passages are formed at the open end of the first-wide seat. The magnetic coil system is installed to guide the air to the wheel exit. Electricity "is on the upper wheel and can be moved back and forth by the coil's current setting. 11435pif.ptd Page 8 1223041 V. Description of the invention (4) Movable in the axial direction-the first 卩 η ^ ~ mentioned above. The on-off valve is provided on the above-mentioned movable 麫 # · Λ, which shows the valve seat. The tongue-shaped iron core is placed in the above-mentioned cylinder, and it is matched with the object of the above-mentioned switch) so that the iron can be moved back and forth freely through the interlocking bolt (ριη). Method f: The two valve seats are switched on and off. The manual control button is actuated in the above-mentioned control room ^ and is in the valve cylinder described above, and is pressed to make the position. The device is based on it; The valve ", the tube can be installed in accordance with the present invention in an uncomfortable manner, when in accordance with the present invention, on the V; press the button to move. ^, T ,,,-(mamfoid bl〇ck) to repeat In the case where the valve seat is used in the control room as a direct-acting solenoid valve, the button can be operated < the same as the same, can be controlled by the system :: 2: It can also be operated by manual control. The wrong operation of the manual control button is to make the above principle and the invention of the present invention obvious and easy to understand. The following is a better one ~ the purpose, characteristics and advantages can be explained in more detail as follows: The embodiments will be described in detail based on the drawings. Type ί Λ Λ makes the present invention suitable Multi-valve type (see 1

Sr i ii; an oblique view of the electromagnetic coil of the embodiment, FIG. The top view, the third figure shows the multi-valve type solenoid valve system in the first figure. The four solenoid valves U are directed toward it. 11435pif.ptd Page 9 1223041 5. Description of the invention (5) The width direction is installed in Multi-valve pedestal 0, one of the four solenoid valves installed in the seat is shown in FIG. 2. A multi-valve base 10 is formed so as to extend in the longitudinal direction to form a supply air flow path i 2 and air flow paths U, 14 connecting an air pressure source. Although there are four rows of solenoid valves u in figure i: 10, any number of solenoids can be installed on a wide platform. Evening flash. As shown in Fig. 2, the Denshikawa system has a block 15 that is roughly shaped like a cuboid. The main valve member 15 is formed here to accommodate the main broad shaft, and it can move back and forth freely in the axial direction. A cover member 18 is fixed at one end, and a control block 19 is formed at noon, so that the main reading unit 2 series, the yoke member 18, and the control member 19 form a valve cylinder 20. -The main valve part 15 is formed with an air supply port 21 so that the air supply path 12 and the receiving hole 16 communicate with each other, and two exhaust ports 22 and 23 are formed so that the two exhaust ports 13 and 14 and the accommodation The holes 16 are each communicated. The main valve part 15 forms an output port 8 at the intermediate position between the milk supply port 21 and one exhaust port 22, and the animal forms an output at the intermediate position between the 1 air port 21 and the other exhaust port 23 Port Z 5. When the output ports 24 and 25 are formed in the main valve member 15 as described above, a connector for supplying compressed air is installed in the main valve member 15 to an air-pressure operating device such as a cylinder and a cylinder. However, when the multi-valve base 10 is provided with a plurality of solenoid valves 11, the output ports 24 and 25 may be provided in the multi-valve base corresponding to each solenoid valve 丨 to communicate with the receiving hole 16. ^ The main valve shaft 17 is provided with a plurality of valve bodies 17a. When the main valve shaft 17 is moved to the first position of one direction end, as shown in the second figure, the air supply port 21 is connected to the output port.

11435pif.ptd Page 10 1223041 V. Description of the Invention (6) Port 25 is in a connected state, and the output port is in a. State. In this regard, the main wide ... moves to other 夂: =: state The port is switched, and the air supply port 21 and the output port 2 are green. The second port 25 and the exhaust port 23 are in a connected state. Become a connected complaint and output a live guest at one end of the main valve shaft 17? R, ”” 26 large-diameter piston 27. The cover member 18 and the main H are compared with the piston plug 26 to be slidably guided in the axial direction. ^ Lu σ is formed so that the active η and the main valve member 15 are formed so that the piston 2; The moving part is controlled by the air pressure chamber 29 of the control part. ^ The air supply port 2 which is guided freely in the direction of the axis 2 1 is formed in the main gate by this] port in the cranium-9. ^ Valve parts The air supply path 31 of 15 is connected to the = hole [to 28. If there is compressed air supply in the supply port 21, the compressed air is supplied to the air pressure chamber 28 via a crane. The main valve shaft 17 exerts a force f # on the air pressure chamber 28 to assemble the compression screw spring C0ll Spring) "In this case, the pressure

Apply thrust in the same direction. WJ installs the solenoid coil unit 32 in the control unit 19, such as the second bobbin (bo- :) with the winding coil 33. υ: ΪΓ is installed in the same way as the fixed iron core 35. : Made from: The iron core 36 can be moved by inserting the core in the axial direction. As shown in Fig. 3, "Pi 嫱 制 PI 卩" 7 · A -X & is a switch valve 37 made of rubber at the tip of the movable iron core 36. This switch valve 37 is accessible. It is formed in the control part u 38. Here, the valve seat 38 is formed to communicate with the air supply port. It is formed by the main valve part 5 and the control part 19 for the Guangfu administration ^ qxi is opened and closed by the on-off valve 37 ：: movable iron # 36:: ^ 'This opening is installed in the movable iron 436 system to make the on-off valve 37 to

1223041 V. Description of the invention (7) '~' --- The compression coil spring 40 which the spring 38 applies a spring force. Therefore, when the coil 33 is energized, the 'movable iron core 36' moves toward the fixed iron core 35 with a spring-resistant force to open the opening of the air supply path 39, and when the power is released, the gas supply is closed by the oil bomb. 3 of 9 openings. A second valve seat 4 is formed on the opposite side of the valve seat 38 to the valve seat 38 to become a historical direction. Here, the valve seat 4 1 is provided with an exhaust passage 4 communicating with the outside of the control member 9 Of openings. A cylinder-shaped valve holder 43 is mounted on the control part 1 g so as to cover the valve seat 41, and a flap valve is assembled in the valve holder 43 to freely move with a switch. ) 44. The tongue and the valve 44 open and close the opening of the exhaust passage 42. A plurality of interlocking pins 45 are arranged between the tongue valve and the movable iron core 36, and the tongue valve 44 is opened and closed by the movable iron core 36 via the interlocking pins 45. 2. The valve holder 43 is formed with a through hole 46. As shown in FIG. 2, when the coil 33 is de-energized, the movable iron core 36 is pushed to the valve seat 38 by the elastic force. When the valve seat 38 is in contact with the valve seat 38, the tongue valve 44 is separated from the valve seat 41. As a result, the air pressure chamber 29 is in communication with the outside through the exhaust passage 42. The air in the air pressure chamber 29 is discharged to the outside, and the main valve ^ 7 is provided by the air supplied to the air pressure chamber 28. The air pressure becomes a position as shown in FIG. 2. In this regard, when the coil 33 is energized, the on-off valve 37 is separated from the valve seat 38 and the tongue valve 4 4 is subjected to the spring force of the valve seat 41 by the spiral spring 47 assembled in the holder 4 3. The compressed air supplied from the air supply opening / supply via the mesogen supply passage 39 flows into the air pressure chamber 29 of the output unit via an output passage formed by the interlocking pin 45 and the gap between the through holes. Though

1223041 V. Description of the invention (8) '-The compressed air supplied to the air pressure chambers 28 and 29 of both sides is the same pressure, and the pressure area of the piston 27 is set to be larger than the pressure area of the piston 26. / System: When the tongue valve 44 is opened to supply air into the air pressure chamber 29, the main valve shafts 1 to 7 are driven to the position at the stroke end (stroke) on the left side of FIG. 2, which is the = position. In this way, the on-off valve 37 and the tongue valve 44 are configured as control valves that switch the output passage communicating with the air pressure chamber 29 to the supply passage 39 and the exhaust passage. The control unit 19 is connected to the main valve. A mounting hole 48 is formed at the continuous end surface of the component 5 to a predetermined depth, and the mounting hole 48 is used to install a filter 49 across the exhaust passage 42. The filter 49 is made of cloth or porous resin ^ 2 It has a large number of pores and allows air to be exhausted from the air pressure chamber 29 to the outside to prevent inclusions such as dust from entering the exhaust passage 42 from the outside. As shown in FIG. 3, the control member 19 constituting the valve cylinder 20 It is equipped with a hand control button 51 that can move back and forth at right angles to the direction of the reciprocating action of the movable iron core 36. The hand control button 51 has a large end 51a and a small end 5 1 b. The end portion 5 1 a is protruded from the outside of the control part 9 and an inclined surface 5 2 is formed at the tip end to contact the movable iron core 36. The base end portion 5 1 a is provided with an operation that extends in a right-angle direction. Handle (lever) 53, by operating this operation handle 53, the operator can In order to guide the reciprocating action and return movement of the manual control button 51 in the axial direction, the anastomosis groove 5 which is matched with the anastomosis pin 54 fixed to the control part 丨 9 is formed at the base end of the manual control button 51部 5 丨 a. This anastomosis groove 55 is provided with an axial direction groove 55a which matches the anastomosis pin 54 when the manual control button 51 is moved in the axial direction, and a circumferential direction groove 55k which anastomates the anastomosis pin 54 when it is returned.

1223041

The outer diameter of the small-diameter part of the manual control button 5 1 is / #, w / Press the coil spring 56 in the state of anastomotic insertion = 54 and the shaft: to the groove, and no pressure is applied to the hand. Pressing the η 'Manual Control Button 51 is as shown above " Here, the inclined surface 52 of the manual control button 51 is separated from the movable iron core 36, and the on-off valve 47 is separated from the valve seat 38. On the one hand, when the 2 manual control button 51 is operated, as shown in FIG. 3, the tilt of the manual control button 51 touches the iron core 36, and the on-off valve 37 is forcibly resisting the spring force of the spiral spring. Block 38 left. Figures 4A to 4C are plan views of Figure 3, and Figure 4A shows the state of pressing the manual control button 51 or protruding from the outside as shown in Figure 2 or Figure 3. As shown in FIG. 3, when the manual control button 51 is pressed, the operating handle 53 is operated to rotate the manual control button 51, and the matching latch 54 is fitted to the circumferential groove 55b of the matching groove 55. Although the manual control button 51 is exerted with a spring force in the protruding direction by the coil spring 56, the hand presses to keep the pressed state. Fig. 4B shows a state in which the manual control button 51 is pushed back. In the control part 19, the pressing movement of the manual control button 51 is controlled, and the moving direction of the hand control button 51 is installed at right angles, and can be reciprocated from the actuator 57 such as ^ 1. Here, the brake 57 is provided with a brake surface 59 fitted on the segment portion 58 provided on the manual control button 5 丨. As shown in FIG. 4C, when the brake 57 is moved to the anastomosis position, the brake surface 5 9 and the segment portion 5 8 become In the opposite direction, although the manual control button is pressed, the movement of the manual control button 51 can be controlled, thereby preventing the manual control button 51 from being pressed by a mistaken operation. ’,

1223041 V. Description of the invention (10) When the brake 57 is moved from the anastomosis position shown in FIG. 4A and 4B to the position shown in FIG. 4C, it is 'moved to the brake 5 to the interference', and a manual control button 51 is added at the brake 57; ; The brake 57 does not occur to the control member 19 in the reserved position;; = notch 61. As shown in FIG. 3, the two sliding surfaces 62 of the sliding member 62 in relation to the “unillustrated space formed along the control member 19” are slidably formed in the control section as shown in FIG. 4C; Fig. 5 shows another embodiment of the present invention s 1! :) 63. The multi-valve base 10 shown in Fig. 10 is omitted. The components shown in Fig. 5 are the same as those shown in Fig. 5 The same as the second electromagnetic component shown in Figure 5: the Λ piece: the two sides of the valve component 15 are equipped with the same main body as shown in Figure 2 'and _2, and the diameter of the piston The two solenoid wires of 27 are provided with two control valves and two control buttons 51. The main valve is a two-position valve, and the spring position can be used to make the position of the stroke end into three positions. Move to the electromagnetic such as: 4 by 1 off: ^ switch the output path between the air supply path 39 and the 2m iron core 36 =; ==; three = magnetic valve use. This ..., but the present invention is not limited to the above Every time, the solenoid valve is known to be controlled by hand.

11435pif.ptd Page 15 1223041 V. Description of the Invention (11) There are still various changes in the area. For example, although the first figure is a multi-valve type solenoid valve in which a plurality of solenoid valves are mounted on a multi-valve pedestal 10, the solenoid valve 11 shown in the first figure may be used alone. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes and retouch without departing from the spirit and scope of the present invention. The scope of protection of the invention shall be determined by the scope of the attached patent application.

11435pif.ptd Page 16 1223041

Brief Description of the Drawings Fig. 1 is a perspective view showing a solenoid valve according to an embodiment of the present invention. Fig. 2 is a sectional view showing a part of Fig. 1 enlarged. Fig. 3 is a cross-sectional view showing a part of Fig. 2 enlarged. Fig. 4A is a plan view showing the manual control button and the brake in the pressed state as shown in Fig. 3. Fig. 4B is a plan view showing a hand ^ button and a brake which are turned back after being pressed. Figure 4C is a plan view of the manual control button and the brake in a state where the brake is in the anastomosis position. Fig. 5 is a sectional view showing a solenoid valve according to another embodiment of the present invention. Description of the drawing: 10 Multi-valve block (manifold block) 11 Solenoid valve 1 2 Supply air flow path 1 3, 1 4 Exhaust passage 1 5 Main valve part 1 6 Receiving hole 1 7 Main valve shaft 1 8 Covering part 1 9 control parts 20 valve casing 2 1 air supply port (port) 22, 23 exhaust port 24, 25 output port 2 6, 2 7 piston

------ 1223041 Brief description of drawings 28, 29 Air pressure chamber 31 Air supply path 32 Solenoid part 3 3 Coil 3 4 Bobbin (b 〇bbi η) 3 5 Fixed iron core 3 6 Movable Iron core 3 7 on-off valve 38 valve seat 39 air supply passage 4 0 compression spiral spring 41 valve seat 4 2 exhaust passage 4 3 valve holder 44 tongue valve 45 communication pin 4 6 through hole 47 coil spring 4 8 Mounting hole 4 9 Filter 5 1 Press the button 5 2 Inclined surface 5 3 Operate the handle 5 4 Anastomotic latch

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Claims (1)

Scope of patent application and hole-valve cylinder]: The valve is characterized by including: exhaust vent, port formation—the receiving hole is connected to an air supply port and an output port-the main valve shaft, so that the wheel Middle, s, and reciprocating movements can be freely set at the containment axis in the axial direction; port k is switched between the ventilation port and the exhaust port to communicate with it; ~ solenoid coil, # 电, can go to & g π π The valve cylinder is provided with a movable iron core which is controlled by a coil and controlled in the axial direction by a coil. The movable iron core is connected to the receiving cylinder and is connected to the movable iron core to be installed on the valve cylinder so that Connected to the confession: 通 :::; = =-The output path is switched to connect the lice supply path and an exhaust path with one hand to connect the lice path and the exhaust path to communicate with each other; The valve gas path is controlled by a valve to move the output path to one of the supply ports; and the valve is installed on the valve poem in a way that fits easily with the manual control button, which can control the valve Press the manual button to move. "" The solenoid valve described in the first item of the scope of the second application of the valve application, characterized in that each of the pistons "corresponds to a two-valve housing each of the pistons. Each of the solenoid coils operates The two of the control ^ 3.P, as described in the patent application No. 2 range of the solenoid valve, A special ny π The main valve shaft is moved to the two or three positions of the electromagnetic room: special description is that, 4 · a The solenoid valve is characterized by comprising: a valve cylinder formed; 11435pif.ptd Page 20 It is formed on a first valve seat—an open end; it is a second one that is reversed to the first valve seat; and the air flowing from the air supply passage is directed to the air supply passage, the exhaust passage, and The seat forms a _opening wheel exit path to an output section; the electromagnetic coil section is installed on the valve cylinder, and the garden and the picture electricity can be turned back and forth from # AJ. There is also a movable iron core which is actuated by a coil in the axial direction; a switching valve is provided on the movable iron core ^ na off; ^ Section ~ a side seat with a w-shaped valve to open the valve The valve is matched with the on-off valve, and the movable iron core is driven and opened by the connecting plug through the connection; Gou will have a valve seat. ★ A manual control button is installed in a freely reciprocating manner. The cylinder can be controlled by pressing to move the control valve to a position where the output passage and the gas passage are communicated; and the brake is installed on the valve cylinder in a way that fits the manual control button and can be controlled. The manual control button is pressed and moved. ,sigh; 11435pif.ptd Page 21