CN208919444U - Electric opening emergency cut-off magnetic valve - Google Patents

Abstract

The utility model discloses a kind of electric opening emergency cut-off magnetic valves, with valve body and valve rod, valve body has intermediate attachment base, there is magnetic coil in upper section valve body above intermediate attachment base, the top of magnetic coil is equipped with electromagnet armature, the top of upper section valve body is fixed with guide holder, motor rack is fixed on guide holder, driving motor is fixed on motor rack, there is tubular lifter on guide holder in motor rack, tubular lifter has enhancing tube, the output shaft of driving motor and the top of enhancing tube are fixedly linked, it is additionally provided in enhancing tube and driven mentions arm, the driven arm that mentions is with mounting disc, the center of mounting disc is fixed with lift lever, lift lever sequentially passes through the guide holder, the top of electromagnet armature and the valve rod is fixedly linked, mounting disc sets the stabilizer blade there are two radial symmetric along lower circumference.The utility model is opened by motor control valve, so that the power of electromagnetic coil need not be excessive.

Description

Electric opening emergency cut-off magnetic valve

Technical field

The utility model relates to a kind of emergency cut-off magnetic valves, concretely relate to a kind of electric opening emergency cut-off electricity Magnet valve.

Background technique

A kind of emergency cut-off magnetic valve in the prior art, has valve body and valve rod, and valve body has intermediate attachment base, is located at There is valve seat in lower section valve body below intermediate attachment base, lower section valve body also have the Intaking joint being connected and with the valve The connected pass-out vapour connector of seat, has magnetic coil in the upper section valve body above intermediate attachment base, and the top of magnetic coil fills There is electromagnet, there is entrance hole on upper section valve body wall, the valve rod is located in valve body, and the top of valve rod is located in magnetic coil, The bottom end of valve rod is located in lower section valve body, and the bottom end of valve rod is equipped with the spool matched with the valve seat.

The opening and closing of the emergency cut-off magnetic valve of above structure are only to complete by the switching electricity of electromagnetic coil to control , common electromagnetic valve work principle be (by taking normally closed solenoid valve as an example) unlatching of valve lean on be coil be powered magnetic force pick up Iron core band movable valve plug lifts conducting valve, and closing lean on is that iron core and spool lose after magnetic force in its Gravitative Loads after coil losing electricity Lower reset falls to close valve, and the smaller magnetic force of the shift motion of usual iron core is also smaller or uses guide's multiple step format, The above problem cannot be overcome.If obtaining biggish stroke or biggish closing forces i.e. lifting force, this requires electromagnetic wires Circle has biggish power, is otherwise unable to complete the enhancing action of valve rod, the volume that this allows for electromagnetic coil is also larger, makes The overall volume for stating emergency cut-off magnetic valve in the prior art is also larger, and manufacturing cost is higher, the big installation of power and carrying are equal It is inconvenient.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of power of electromagnetic coil need not be excessive, and valve can be completed The promotion of bar, solenoid valve breakdown action electric opening emergency cut-off magnetic valve.

In order to solve the above technical problems, the electric opening emergency cut-off magnetic valve of the utility model, has valve body and valve rod, Valve body has intermediate attachment base, has valve seat in the lower section valve body below intermediate attachment base, lower section valve body also has connected Logical Intaking joint and the pass-out vapour connector that is connected with the valve seat has magnetic in the upper section valve body above intermediate attachment base Line of force circle, the top of magnetic coil are equipped with electromagnet armature, have entrance hole on upper section valve body wall, the valve rod is located at valve body Interior, the top of valve rod is located in magnetic coil, and the bottom end of valve rod is located in lower section valve body, and the bottom end of valve rod is equipped with and the valve seat The spool matched, the top of the upper section valve body are fixed with guide holder, and motor rack is fixed on guide holder, is fixedly mounted on motor rack There is driving motor, there is tubular lifter on the guide holder in motor rack, which has enhancing tube, enhancing tube Inner wall on two sections of screw lifting muscle are symmetrically housed, there are gap, the outputs of the driving motor between two sections of screw lifting muscle The top of axis and enhancing tube is fixedly linked, be additionally provided in enhancing tube it is driven mention arm, the rotation of driving motor output shaft can drive cylinder The corresponding rotation of shape lifter, the motor rack are equipped with travel switch, correspondingly the outer wall of the tubular lifter enhancing tube Upper to have the contact matched, for the driven arm that mentions with mounting disc, the center of mounting disc is fixed with lift lever, lift lever The top of guide holder, electromagnet armature and the valve rod described in sequentially passing through is fixedly linked, and mounting disc is equipped with along lower circumference The stabilizer blade of two radial symmetrics, the width dimensions in gap are greater than the width dimensions of stabilizer blade between two sections of screw lifting muscle.

It further include having reset spring as the improvement of the utility model, which is provided at intermediate attachment base In valve rod section between spool.

Further include as a further improvement of the utility model, be set in the driving motor, motor rack, guide holder and Electromagnetism valve bonnet on the outside of upper section valve body, the electromagnetism valve bonnet are installed on intermediate attachment base, have on the side wall of electromagnetism valve bonnet it is main into String holes.

Electric opening emergency cut-off magnetic valve using the above structure, due to being additionally arranged motor, tubular lifter and driven The structure of arm is proposed, so that the enhancing action of valve rod is by driving motor driving lifter rotation and then the driven arm that mentions to be driven to rise Valve rod is lifted, spool is made to be separated with the valve seat, and valve rod is inhaled with the armature on coil top under the action of electromagnetic force Merge the breakdown action for keeping completing valve, changing is only the reality controlled by the switching electricity of electromagnetic coil in the prior art Existing mode so that the power of electromagnetic coil be only used to be attracted after holding, originally the strength for lifting valve rod of coil is mainly by electricity Machine lifts power to replace, therefore the overall volume of valve can be made relatively small, easy to carry and installation.In the utility model After being arranged the technical characteristic of reset spring in the valve rod section between intermediate attachment base and spool, it is ensured that in electricity In the case that magnetic coil powers off, valve rod is moved down rapidly under the force action of gravity and elastic force so that spool resists valve seat, valve Closing motion due to having the intervention of spring force so that the reset force of valve rod spool increases, improve the utility model emergency cut-off Reliability.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawing.

Fig. 1 is a kind of main cross section structure diagram of emergency cut-off magnetic valve in the prior art.

Fig. 2 is the main cross section structure diagram of the utility model electric opening emergency cut-off magnetic valve, this is shown in figure Utility model is in state when power loss is closed.

Fig. 3 is the main cross section structure diagram of tubular lifter in the utility model electric opening emergency cut-off magnetic valve.

Fig. 4 is the side schematic cross-sectional view of tubular lifter in the utility model electric opening emergency cut-off magnetic valve.

Fig. 5 is the schematic cross-sectional view of the line A-A along Fig. 3.

Fig. 6 is the driven main section view enlarged structure signal for mentioning arm in the utility model electric opening emergency cut-off magnetic valve Figure.

Fig. 7 is the main cross section structure diagram of the utility model electric opening emergency cut-off magnetic valve, this is shown in figure Utility model is in the state opened when keeping.

Specific embodiment

Referring to Fig. 1-Fig. 6, the electric opening emergency cut-off magnetic valve of the utility model, there is valve body 10 and valve rod 20, valve Body 10 has intermediate attachment base 11, has valve seat 13, lower section valve body 12 in the lower section valve body 12 of intermediate 11 lower section of attachment base Also there is the Intaking joint 14 being connected and the pass-out vapour connector 15 that is connected with the valve seat 13, be located at intermediate 11 top of attachment base Upper section valve body 16 in there is magnetic coil 17, the top of magnetic coil is equipped with electromagnet armature 18, has on 16 wall of upper section valve body There is entrance hole 19, the valve rod 20 is located in valve body 10, and the top of valve rod 20 is located in magnetic coil 17, the bottom end position of valve rod 20 In in lower section valve body 12, the bottom end of valve rod 20 is equipped with the spool 21 matched with the valve seat 13, the top of the upper section valve body 16 End is fixed with guide holder 30, and motor rack 40 is fixed on guide holder 30, driving motor 41 is fixed on motor rack 40, is located at motor There is tubular lifter 50, which has enhancing tube 51, the inner wall of enhancing tube 51 on guide holder 30 in frame 40 It is upper that two sections of screw lifting muscle 52 are symmetrically housed, there are gap 53 between two sections of screw lifting muscle 52, the driving motor 41 it is defeated The top of shaft and enhancing tube 51 is fixedly linked, be additionally provided in enhancing tube 51 it is driven mention arm 60,41 output shaft of driving motor turns The dynamic corresponding rotation that can drive tubular lifter 50, the motor rack 40 are equipped with travel switch 42, and correspondingly the tubular mentions Rising has the contact 54 matched on the outer wall of 50 enhancing tube 51 of device, the driven arm 60 that mentions is with mounting disc 61, mounting disc 61 Center be fixed with lift lever 62, lift lever 62 sequentially passes through the guide holder 30, electromagnet armature 18 and the valve The top of bar 20 is fixedly linked, and mounting disc 61 sets the stabilizer blade 63 there are two radial symmetric along lower circumference, and two sections of spirals mention The width dimensions for rising gap 53 between muscle 52 are greater than the width dimensions of stabilizer blade 63, when tubular lifter rotates to certain angle, The driven arm entirety that mentions is moved, vertically in the gap 53 that two stabilizer blades can be located just between two sections of screw lifting muscle 52 at this time, Valve is in fully open state；When power-off, the magnetic force that magnetic coil generates disappears, and the arm that mentions driven at this time can be fallen after rise, under valve rod Drop, spool are matched with the valve seat, and valve is closed.It further include having reset spring 22, which, which is set in, is located at Between in valve rod section between attachment base 11 and spool 21.It further include being set in the driving motor 41, motor rack 40, guide holder 30 and the outside of upper section valve body 16 electromagnetism valve bonnet 70, which is installed on intermediate attachment base 11, electromagnetism valve bonnet 70 There is main entrance hole 71 on side wall.

Fig. 7 is the main cross section structure diagram of the utility model electric opening emergency cut-off magnetic valve, this is shown in figure Utility model is in the state opened when keeping, and the spool is detached from valve seat.

Claims (3)

1. a kind of electric opening emergency cut-off magnetic valve, has valve body (10) and valve rod (20), valve body (10) has intermediate connection Seat (11), being located in the lower section valve body (12) below intermediate attachment base (11) has valve seat (13), and lower section valve body (12) also has The Intaking joint (14) being connected and the pass-out vapour connector (15) that is connected with the valve seat (13) are located on intermediate attachment base (11) There are magnetic coil (17) in the upper section valve body (16) of side, the top of magnetic coil is equipped with electromagnet armature (18), upper section valve body (16) there are entrance hole (19) on wall, the valve rod (20) is located in valve body (10), and the top of valve rod (20) is located at magnetic coil (17) in, the bottom end of valve rod (20) is located in lower section valve body (12), and the bottom end of valve rod (20) is equipped with to match with the valve seat (13) The spool (21) of conjunction, it is characterised in that: the top of the upper section valve body (16) is fixed with guide holder (30), solid on guide holder (30) Equipped with motor rack (40), it is fixed with driving motor (41) on motor rack (40), is located on the guide holder (30) in motor rack (40) With tubular lifter (50), which has enhancing tube (51), is symmetrically equipped on the inner wall of enhancing tube (51) Two sections of screw lifting muscle (52), there are gap (53), the outputs of the driving motor (41) between two sections of screw lifting muscle (52) Axis and the top of enhancing tube (51) are fixedly linked, be additionally provided in enhancing tube (51) it is driven mention arm (60), driving motor (41) output The rotation of axis can drive the corresponding rotation of tubular lifter (50), and the motor rack (40) is equipped with travel switch (42), accordingly There is the contact (54) matched, described driven mention arm (60) have on the outer wall of ground tubular lifter (50) enhancing tube (51) Have mounting disc (61), the center of mounting disc (61) is fixed with lift lever (62), and lift lever (62) sequentially passes through described lead It is fixedly linked to seat (30), electromagnet armature (18) and the top of the valve rod (20), mounting disc (61) is equipped with along lower circumference The stabilizer blade (63) of two radial symmetrics, the width dimensions in gap (53) are greater than stabilizer blade between two sections of screw lifting muscle (52) (63) width dimensions.

2. electric opening emergency cut-off magnetic valve as described in claim 1, it is characterised in that: further include having reset spring (22), which is set in the valve rod section between intermediate attachment base (11) and spool (21).

3. electric opening emergency cut-off magnetic valve as claimed in claim 1 or 2, it is characterised in that: further include being set in institute State the electromagnetism valve bonnet (70) on the outside of driving motor (41), motor rack (40), guide holder (30) and upper section valve body (16), the solenoid valve Cover (70) is installed on intermediate attachment base (11), has main entrance hole (71) on the side wall of electromagnetism valve bonnet (70).