TW200404971A - 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 retreating 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

200404971 V. Description of the invention (1) Technical field to which the invention belongs The present invention relates to a solenoid valve operated by an electromagnetic coil (so eno id), and in particular, to a control pressure generated by a direct-acting solenoid valve (Pilot pressure) The method of operating the main valve shaft can be applied to the solenoid valve used in the Pilot operation method. The directional control valve that controls the flow of air in the prior art is used to control the supply and stop of the air rolling when the pressure is returned to the air, and the supply and exhaust of the air pressure = control, so that the air cylinder (cyHnder) moves back and forth. The supply of air pressure is a two-level system, etc., it has a complex number of days (PQrt), the switching state of the valve = the three-position valve of the type. In such a direction (or stop n :: = ripilot valve), the control pressure is used to guide the operation; the control pressure is used to switch the main valve shaft, and the indirect action is a solenoid valve. This indirect-acting solenoid valve has a strong joint on the main valve shaft, and Wei J 甶 control pressure can be switched to operate the solenoid coil (s! Nsl 丨, an electromagnet-operated main valve shaft with a single iron-operated main valve shaft The two solenoid coils) and the solenoid valve are two types of two solenoid solenoid coils (uble solenoid). The single system returns to the original position.-Aspect, $ = The main valve shaft is also opposite to the square when the solenoid is energized. Although the two-position valve system of the electromagnet is de-energized, the shaft system remains at the original position. Moreover, when the n-side electromagnet is not energized, the two-position valve of the main valve is de-energized. The shafting is in a neutral position, at any one of 11435pif.ptd $ 6 pages 200404971

When the square electromagnet is energized, the main valve shaft and the two-position valve operate in the same way. On the one hand, the above-mentioned control valve is a direct acting three-way port, which is also used as a single solenoid valve. Relationship between $ Any one of the single solenoid type and the double solenoid type has a% 5 used as a single unit and the "type where a plurality of solenoid valves are assembled and used as accessories or pedestals" is a type of combination (mani) f 〇ld) solenoid valve. In the case of single use, the double type also has the same relationship as the solenoid valve system does not operate when the coil of the solenoid coil is not energized, and the electric valve system does not operate when the coil is not connected to the power supply. Therefore, in the state where the coil is not connected to the power, in order to force the solenoid valve to be operated, the plunger core (p 1 Unger) can be controlled by hand when the control valve is activated by the coil's current. Press the button to force the action. In the conventional system, the manual control button is protruded from the outside of the valve casing to be assembled in the valve cylinder. When the manual control button is pressed, the control valve is forced to be driven by the movable iron 4 and is in a normal use state. When the manual control button is pressed by mistake, the solenoid valve will be actuated accidentally. In addition, the manual valve is used as a single unit, and a manual control button is also assembled in a field where a direct-acting three-port solenoid valve is used. SUMMARY OF THE INVENTION The object of the present invention is to prevent a manual control button provided on a solenoid valve.

Wh η The solenoid valve (solenoid button) and brake ('characteristics of the present invention include a valve cylinder, a main valve shaft, a), a control valve (pi lot vaive), a hand stopper, and the like. Among them, the valve cylinder is formed and closed 200404971 V. Description of the invention (3) The hole is connected to the air supply port (Port), and the valve shaft is connected to the above-mentioned receiving hole and the outlet port and the exhaust port. The main output port is switched to the above: give; main = freely in the direction of the axis, so that it is open. The electromagnetic coil is installed in the above-mentioned > and the exhaust port to be connected with a movable iron core capable of reciprocating operation. Control = 'The current is applied to the valve cylinder in the axial direction by the energization of the coil, so that the output path is connected to the movable railway to communicate with the n-wheel outlet path.' The base and I are configured to accommodate the above-mentioned piston and supply air flow σ. Manually pressing 4 is the previous two = f, the * 1 path is connected to the valve cylinder, and the f control valve connected to the upper path and the air supply path is freely installed by the pressing action. The button can be installed on the top of the sincerity device in accordance with the method of%. It can move with the pressing of the manual control button. To control the solenoid valve of the present invention, a valve is provided at the end of the valve, corresponding to the housing and the tongue. Therefore, each of the two solenoid coils of the main valve shaft is moved into an air room. The upper valve f of the upper valve is that the main two i: the electromagnetic valve of the invention, the position, or the three position. :, On-off valve, tongue-shaped _ = in two = valve parent electromagnetic wire = device, etc. Among them, the valve cylinder forms the air supply path e,) row, / = according to the knowledge and system. The exhaust path is formed on the tenth ^ α breast discharge path and the second valve seat of the wheel outlet opening 4; the valve exhaust path i path makes the air supply flow from the above 丄: reverse. Input * magnetic coil system Installed in the above ρ β Jade hole is guided to the wheel exit. Electricity 4 can read and write, and can be reciprocated by the energization of the coil ^ n435pif.ptd Page 8 200404971 V. Description of the invention (4) It can be used in the axial direction. Close the first valve # center., 4 off valve is set on the movable iron core and opened in the above room and the above switch room. The object = the two seats can be switched back and forth freely. The manual control button is based on the above. The control cylinder can be moved to the above cylinder by pressing the button:: = t The button can be fitted in a freely compatible manner according to the material λ. The indirect-acting solenoid valve is used as a single unit. In the case of multiple valves: the valve-making (m = f〇ld M〇ck) multi-valve-mounted multi-valve valve: When the control valve is operated by a direct-acting solenoid valve == two ... Brake prevention = operation. The erroneous action on the path is to make the above principles and other purposes of the present invention clearly understandable. The following is a diagram of a preferred embodiment-more detailed description is as follows: M. The attached drawings are described as the embodiment. The embodiments of the invention will be described in detail based on the attached drawings. Λ Λ The invention is applicable to a multi-valve type. (The plane lf01d is an oblique view of the electromagnetic chamber of an embodiment of the invention. The second m section is an enlarged sectional view, and the third diagram is an enlarged section view of the first section. The multi-valve type solenoid valve is composed of four solenoid valves u to page 9 of 11435pif.ptd 200404971 V. Description of the invention (5) The width direction is installed on the multi-valve base 10, and the second figure shows that the One of the four solenoid valves of the valve seat 10. In the multi-valve seat 10, a supply air flow path 2 and an exhaust gas flow path 1 and 1 4 connected to an air pressure source are formed to extend in each length direction. Although there are four solenoid valves in the first figure, they are installed on the multi-valve pedestal 10 '. Any number of solenoid valves 11 can be installed in the multi-valve pedestal. As shown in FIG. 2, the solenoid valve 11 has a substantially rectangular shape. Body shape of the main valve part (b 1 〇ck) 1 5, where the main valve part 1 & The hole 16 accommodates the main valve shaft 17 and can move back and forth freely in the axial direction. A cover block 18 is fixed at one end of the main valve component 5 and a pilot block 19 is fixed at the other end. The main valve member 15, the cover member 18 and the control member 19 form a valve cylinder 20. An air supply port 21 is formed in the main valve member 15 so that the air supply path 12 and the accommodation hole 16 communicate with each other to form two exhausts. The ports 22 and 23 communicate with each other for the two exhaust gas flow paths 13, 14 and the accommodation hole 16. The main valve member 15 is located between the air supply port 21 and the one exhaust port 22 ^, Among the air supply port 21 and the other exhaust port 23 = this is the case. When the main valve member 15 forms the output ports 24 and 25, the air pressure operation equipment such as a 2 pneumatic cylinder (cylinder) is used. The joint for supplying and rolling two-rolled and thin-rolled is installed on the main valve part. However, in the case of: port rr, n corresponding to each electromagnetic field == may be a and the output ports 24 and 25 communicate with the receiving hole 16. The main spool 17 is provided with a plurality of valve bodies 17a ′. When the main valve shaft 17 moves to the first position of one direction end, as shown in FIG. 2, the air supply port 21 is connected to the output port.

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state. In the connection state, the output port 24 and the exhaust port 22 are connected. The port i is switched. When the valve shaft 17 is moved to the second position of the other direction end, the port 25 disk exhaust port 21 is connected to the output port. The port 24 is in a connected state, and the output is in, and the discharge rolling port 23 is in a connected state. 26 large-mouth piston 26 is arranged at the other end than piston plug 2 "乂 slides from fj 2; f cover member 18 and main valve member 15 form an air pressure chamber 28 which guides the 1 () toilet in the axial direction and is controlled by The component air pressure piece 15 is formed to allow the piston 27 to slide freely and be guided in the axial direction. The perforation port 21 is connected to the air supply path 31 by the air supply path 31 formed in the main valve part 15 and is connected to the air supply port. 2 丨 When compressed air is supplied, the compressed air is supplied to the air pressure chamber 28 by j, and the main valve shaft 17 is applied with a thrust to the first position. However, a compression coil spring (coi 1 spring) is assembled in the air pressure chamber 28. ) When this is used as the storage room, the thrust in the same direction is also applied by the compression spiral bomb. 〃 The control unit 19 is provided with an electromagnetic coil section 32. As shown in FIG. 2, the electromagnetic coil section 32 is provided with a package. The bobbin (b0bMn) 34 of the coil 33 is provided with a fixed iron core 35 inside the bobbin 34, and a plug-type iron core capable of moving back and forth in the axial direction can move the iron core 3 6 As shown in FIG. 3, a rubber on-off valve 37 is installed at the tip of the movable iron core 36. This on-off valve 37 It can be contacted with the first valve seat 38 formed in the control member 1 g. Here, the valve seat 38 forms an air supply passage 39 formed by the main valve member 15 and the control member 19 communicating with the air supply port 21. The opening is opened and closed by the on-off valve 37. The movable iron core 36 is provided to open and close the on-off valve 37.

200404971

When the spring force is applied to the valve seat 38, the movable iron core 3 6 opens the opening of the opening 39 of the air supply path 39. The compression coil spring 4 〇 is directed to the solid part with the anti-spring force. Therefore, when the coil 33 passes through the fixed iron core 35, the air supply is closed by the oil spring force, and the second valve seat 41 is formed on the opposite side of the valve seat 38 to "the valve seat 41" An exhaust opening communicating with the outside of the control member 19 is provided. The control member 19 is attached to cover the valve seat 41. A cylinder-shaped valve holder 43 is also provided here. A flapper valve 44 can be assembled with a switch in 43 to move freely. This tongue and valve 44 opens and closes the opening of the exhaust passage 42. A plurality of linkages are arranged between the tongue valve and the movable iron core 36. The latch 4 5 and the tongue valve 4 4 are opened and closed by the movable iron core 36 via the interlocking latch 4 5. Here, the valve holder 43 is formed with a through hole 46, as shown in FIG. 2. When the current is released, the movable iron core 36 is pushed toward the valve seat 38 by the impulse force: the relationship is that the on-off valve 37 is in contact with the valve seat 38, and the tongue valve 44 is away from the valve seat 41. By this, the air pressure The 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 shaft i 7 is The air pressure supplied to the air pressure chamber 28 becomes one of the positions shown in Fig. 2. For this reason, when the coil 33 is energized, the opening and closing valve 37 is separated from the valve seat 38 on the same day as the tongue shape. The valve 4 4 is connected by the coil spring 4 7 assembled in the holder 4 3 to the spring seat 41 through the air supply passage 39 through the air supply passage 39? The supplied compressed air is passed through the air supply The output path formed by the gap between the interlocking pin 45 and the hole passing therethrough flows into the air pressure chamber 29 of the output section. Although

11435pif.ptd Page 12 200404971 V. Description of the invention (8) The abrasion area of the air pressure macro 98 plug 27 supplied to both sides is set as follows: The compressed air system of Bu 29 is of the same pressure, live system, tongue shape 44 It is opened; the large area of the plug 26 is closed 1 ▽ 〆 ^ 丄 * 时 When the air is supplied in the inner rolling room 2 9, the main uranium 17 is driven to the paper master on the left side of Figure 2 The position of the stroke end on the shaft side is the first position. In this way, the on-off valve 37 is a control valve H ^ 2Q ^ ^ Ί Ί ^ X "The tongue valve 44 is a control valve configured to communicate with the air: ΐ L ί is exchanged between the supply passage 39 and the exhaust passage 42 The control member 19 is provided with a mounting hole 48 in the control member 19 from the degree of connection with the main valve member 15. Here, the holding force j δ 尨, said 1 "the body owner 疋 冰 疋 0 and hole 4 8 series to check the exhaust passage 4 2 dreamer over the device (fiuer) 49. The diverter 49 is made of cloth or porous material and has a large number of pores. It allows from the inside of the air pressure chamber 29 to the outside, so as to prevent inclusions such as dust from entering the exhaust passage 42 from the outside. Second, as shown in FIG. 3, the reciprocating action of the moving iron core 36 of the control member constituting the valve cylinder 20 can be reciprocated at right angles. The second control button 51 has a large-diameter base end portion. The leading end portion 5b of the 5ia and the small diameter, and the basal end portion 51a protrude from the control part 9; the leading end forms an inclined surface 5 2 which contacts the movable iron core 36. ° At the base end 5 1 a, an operating lever 53 extending in a right-angle direction is installed, and by operating this operating lever 53, the operator can turn the H button. In order to guide the reciprocating action H of the manual control button 51 in the axial direction, the motion ′ 55 is formed on the base end portion 51 a of the manual control button 51 to be matched with the fitting pin 54 fixed to the control member 19. This anastomotic groove fixture " / causes the manual control button 5 1 to be anastomosed to the axis of the anastomosis pin 5 4 when it is moved in the axial direction. The groove 5 5 a coincides with the annulus pin 5 4 in the circumferential direction of the anastomosis latch 5 4 and the set & 5 d 200404971. V. Description of the invention (9) Assemble the outer side of the small diameter part of the manual control button 51 to make the manual control force The human spring force & contraction coil spring 56 is inserted in the anastomosis. 4 The pregnancy is matched by the direction groove 5 5 a. The evening is τ, Ding Cong, the batch beginning R 1 卩 毛毛 心心 & Down without applying pressure to the hand

: m, the manual control button 51 is shown as shown in Fig.1. At this time, the inclined surface 52 of the manual control button 51 is movable, and the on-off valve 47 becomes L == 51 when separated from the valve seat 38. As shown in FIG. 3, the manual control is inclined by two: iron core The 36 'on-off valve 37 is forced away from the valve seat 38 against the spring force of the spiral spring 40. Fig. 2 is a plan view of Fig. 3, and Fig. 4A shows a state in which the manual control button 51 is not pressed as shown in Fig. 1 or Fig. 3 or is projected outside. As shown in FIG. 3, when the manual control button 51 is pressed and the operating handle 53 is operated to return the manual control button 51, the anastomosis pin 54 is fitted into the circumferential groove of the anastomosis groove 55. 55b. Although the manual control button 51 is provided with a spring force in the protruding direction by the coil spring 56, the manual control button ^ is in a pressed state. Fig. 4B shows a state where the manual control button 51 is pushed back after being pressed. The control part 19 is a control button 5 1 for controlling the pressing movement of the manual control button 51, and is provided with a brake 57 which can move back and forth freely with the movement direction of the manual control button 51 in a right-angle direction. Here, the brake 5 7 is provided with a brake surface 59 that fits on the section 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 59 and the section 58 are opposed to each other. Toward, although pressing the manual control button. The button can also control the movement of the manual control button 51, thereby preventing the manual control button 51 from being pressed by the operator. ', 11435pif.ptd p. 14 2UU404971

When the brake 57 is moved from the anastomosis position shown in FIG. 4A and FIG. 4B and shown in FIG. 4C, the position is moved to the first interference to control the reserve position. Manual control and manual control are formed on the brake 57. The brake does not occur. ! 9 in reserve: 2 into two gaps 6 1. As shown in FIG. 3, the sliding na is provided with a notch (sll " 63) of the second component 19, and the sectional view of the electromagnetic valve of the multi-valve ^ he / w column is omitted, and the figure and the first The components shown in FIG. 3 are common ^ 在 = 图 'and the second solenoid valve 11 shown in FIG. 5 is attached to the first place; = the two sides of the door valve member 15 are installed as the second brother 2 The master control part 19 that is not the same. Therefore, the electromagnetic coil unit 32 of this electromagnetic door is equipped with the same-outer diameter piston 27] = ::: at both ends of the main valve shaft 17 One solenoid valve is provided with two control / circle dust one position valves, because of the two control buttons 51 shown in Figure 5. The main valve shaft 17 is set to the neutral position, which is a two position valve, which is spring-loaded. The position of the stroke end can be made into a three-position position. The control valve moves the main valve shaft 17 at the position of the electromagnetic coil, and closes it: Two ^ In the air supply path 39 and the exhaust gas ^ Two. The movable iron core 36 makes the output path switchable. This itself is a direct-acting electromagnetic reader connected by a single ΐ42, and is used by installing a manual control button 511 port solenoid valve. In this case, the present invention is not limited to the upper + direct-acting type. The solenoid valve is operated by manual control. The above-mentioned embodiments do not deviate from its purpose.

Page 15 200404971 V. Description of 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 base 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 200404971

BRIEF DESCRIPTION OF THE DRAWINGS A perspective view of a solenoid valve according to an embodiment of the present invention. Fig. 2 is a cross-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 manual control button and a brake which are turned back after being pressed. Figure 4c is a plan view showing the sad manual control button and the brake when 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 (p 0rt) 22, 23 Exhaust port 24, 25 Output port 2 6, 2 7 Piston

11435pif.ptd Page 17 200404971 Brief description of drawings 28, 29 Air pressure chamber 31 Air supply path 32 Solenoid section 33 Coil 3 4 Bobbin (b 〇bbi η) 3 5 Fixed iron core 3 6 Moving iron Core 37 switch valve 38 valve seat 3 9 air supply path 40 compression coil spring 41 valve seat 4 2 exhaust path 4 3 valve holder 4 4 tongue valve 45 communication pin 4 6 through hole 4 7 coil spring 48 Set holes 4 9 Filter 5 1 Press the button 5 2 Inclined surface 5 3 Operate the handle 5 4 Anastomotic latch

11435pif.ptd page 18 200404971 Simple illustration of the figure 5 5 Anastomotic groove 5 6 Compression coil spring 5 7 Brake 5 8-stage section 5 9 Brake surface 6 1 Notch 6 2 Slide member 63 Cutout 1 · 11435pif.ptd page 19

Claims (1)

200404971 6. Scope of patent application 1. A solenoid valve, which is characterized in that a valve cylinder is formed to form a storage space, a s, and an exhaust port; ^ hole continuous cut-air supply port-wheel outlet port- The main valve shaft is freely provided with a hole in the shaft direction in a reciprocating action, so that the output port is connected to Γ # $ ;; It is replaced by a ° Haitong rolling port and the exhaust port, and an electromagnetic coil is installed. The valve cylinder can be moved back and forth in the axial direction of a movable iron core; _ of the pass, car, valve, is connected to the movable iron core installed in the valve cylinder, so that ΐ; to house a piston; -The output path of the air pressure chamber is switched to the one-port for the a-port. The -supply & path and the _ # air path are connected. A control "button" is installed in the freely reciprocating way. Valve, fork animal = pressure action can make the control valve act in a position to communicate the output path with the chaotic path; and ', a brake is installed in the room in a way that fits easily with the manual control button Jing 'can control the press movement of the manual control button.' 2. If the scope of patent application The solenoid valve according to item 1, characterized in that the pistons are provided at both ends of the main valve shaft, corresponding to each of the-; the air pressure chamber has two Two valves. Two of the two control valves. 3 · The solenoid valve as described in item 2 of the scope of patent application, and the outside — @_ 轴系 solenoid valve moving in two or three positions. 4 · A solenoid valve , Characterized in that it includes: a reading tube, formed; 11435pif.ptd 6. The patent application scope of the second lice passage is tied to a first valve seat—exhaust passage in You # f # 盛小成 —open end; the valve seat forms a μ road, which is tied to Rongdi —The valve seat becomes one of the first openings in the reverse direction; and ~ 罘 _ Yupashan wheel exit path 'is to make the output path from the gas supply path, + 屮 + ... to an output; The air-guided f4 solenoid coil unit is installed in the valve cylinder, but Gu Shidian can move back and forth in the red ancient heart * Sigh there is a movable iron core in the axial direction by a coil through 1; a switching valve Is located in the movable iron core; the valve seat is opened, and the tongue is tied in the valve barrel to match the on-off valve with the movable iron core through the communication plug. Drive it to turn it on and off; The cutting rule β, a valve seat, and a manual control button are installed on the cylinder in a freely reciprocating manner, so that the control unit can act on the output path: A position where the air passage is connected; and -... a brake is provided to fit the hand control freely Button of the valve cylinder 'may control the movement of the manual pressing of the button. Flying out of Hi I1435pif.ptd Page 21