CN203240059U

CN203240059U - Normally-open normally-close electric control device

Info

Publication number: CN203240059U
Application number: CN 201320290478
Authority: CN
Inventors: 魏伯卿
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-26
Filing date: 2013-05-26
Publication date: 2013-10-16
Anticipated expiration: 2023-05-26

Abstract

A normally-open normally-close electric control device comprises a valve cavity body and a valve core. The valve core is connected with a valve core rotating shaft. The other end of the valve core rotating shaft is connected with a motor. The outer circumference of the valve core rotating shaft is sleeved with a return spring. A half-cylindrical rotating shaft outer small tooth with a height of 3cm is arranged outside a half circle, adjacent to the return spring, of the valve core rotating shaft. A semicircular plate is arranged outside the rotating shaft outer small tooth. A semicircular plate inner small tooth with a height of 4cm is arranged inside the semicircular plate. The semicircular plate inner small tooth is matched with the rotating shaft outer small tooth. The two ends of the semicircular plate are respectively connected with a sliding bar. Each sliding bar penetrates through holes formed in the two ends of a sliding bar sleeve bar which is fixed on a sliding bar sleeve bar support, and each sliding bar is connected with a sliding bar fixing bar. The normally-open normally-close electric control device is characterized in that a permanent magnet is arranged on the sliding bar sleeve bar support, an electromagnetic coil is arranged in the center of each sliding bar fixing bar, magnetic attraction blocks are arranged on the two sides of the electromagnetic coil, the direction of a magnetic field generated when the electromagnetic coil is electrified is opposite to the direction of a magnetic field of the permanent magnet, and a control module of the control motor controls power-on or power-off of the electromagnetic coil.

Description

Normally-open normally-close formula electric adjusting device

Technical field

The present invention relates to normally-open normally-close formula electric adjusting device, belong to valve and valve control sciemtifec and technical sphere.

Background technique

Electric control valve is used very extensive in chemical industry, but these electric control valves can only manually go to on-site manual to open or close mortor operated valve when running into unexpected power failure, and to guarantee safety, this is breakneck to going to the on-site manual operator! And do not have a kind of electric control valve that can when running into unexpected have a power failure, can automatically open or close on the market.

Summary of the invention

The purpose of this invention is to provide a kind of normally-open normally-close formula electric adjusting device that can when running into unexpected the power failure, can automatically open or close.

Normally-open normally-close formula electric adjusting device, comprise a valve chamber and be installed in the interior spool of valve chamber, spool top is connected with a valve core shaft, the other end of valve core shaft links to each other with motor, valve core shaft has a return spring near the periphery cover of spool one end, the effect of return spring is can keep spool to be in when not having External Force Acting to close fully or full open position, there is the very intensive little tooth of the high vertical bar shape of one section 3cm in the hemicycle outside that valve core shaft is close to return spring, form the outer little tooth of semicolumn rotating shaft, the outer little tooth of rotating shaft outside corresponding position has a semi-circular plate, there is little tooth in the very intensive semi-circular plate of the high vertical bar shape of one section 4cm the semi-circular plate inboard, little tooth and the semicolumn rotating shaft little tooth engagement that can be complementary outward in the semi-circular plate; The semi-circular plate two ends respectively are connected with a slide bar and form U-shaped shape structure with semi-circular plate, slide bar passes the hole at the slide bar loop bar two ends that are fixed on the jack rod sleeve shaft bar, then be connected with slide bar fixing rod away from semi-circular plate one side, valve core shaft is at semi-circular plate, pass in the framework that two slide bars and slide bar loop bar form, the Placement of slide bar and slide bar fixing rod is: slide bar passes the aperture at slide bar fixing rod two ends, and fix the distance that to regulate slide bar fixing rod and semi-circular plate two ends by regulating two adjusting nuts by two adjusting nuts that are screwed on the slide bar of slide bar fixing rod both sides; Two each covers of the slide bar outside between semi-circular plate two ends and slide bar loop bar have a little spring; It is characterized in that:

1, the jack rod sleeve shaft bar links to each other with the neutral position of slide bar loop bar and the slide bar loop bar is fixed on the jack rod sleeve shaft bar, position at jack rod sleeve shaft bar fixed slip bar loop bar is equipped with a permanent magnets away from valve core shaft one side, the slide bar fixing rod central authorities position corresponding with permanent magnets is equipped with an electromagnetic coil, the both sides of electromagnetic coil respectively are equipped with a magnetic piece, make permanent magnets just in time can hold two magnetic pieces, the magnetic direction that the electromagnetic coil energising produces is opposite with the magnetic direction of permanent magnets; Control module control electromagnetic coil energising or the outage of control motor.

2, make valve core shaft overcome the return spring power effect of valve core shaft overcoat and make spool open or close a certain desired location and when motor is had a power failure when motor receives signal, control module provides signal and makes the electromagnetic coil energising, the magnetic field that the electromagnetic coil energising produces overcomes permanent magnets to the attraction force of magnetic piece, making electromagnetic coil and permanent magnets repel each other and move right namely moves away from the permanent magnets direction, electromagnetic coil moves two slide bars of pulling away from the permanent magnets direction and compresses the outer little spring of slide bar, driving semi-circular plate moves right together, and the interior little tooth of the semi-circular plate that makes semi-circular plate is stuck on the outer little tooth of rotating shaft, no longer rotate thereby pin valve core shaft, electromagnetic coil was switched on always and was kept pinning valve core shaft and do not rotate this moment; When receiving signal again, motor make valve core shaft overcome the return spring power effect of valve core shaft overcoat and when making spool open or close another desired location, control module is when sending electricity to motor, provide signal cut electromagnetic coil power supply, make the electromagnetic coil outage and magnetic field diminishes, be enclosed within the spring-back force of the little spring on the slide bar and the magnetic attraction of permanent magnets attracting magnetic suction block this moment, with semi-circular plate, slide bar, the slide bar loop bar, electromagnetic coil and magnetic piece are moved to the left together, permanent magnets is held the magnetic piece of electromagnetic coil both sides and make in the semi-circular plate little tooth away from the outer little tooth of rotating shaft, remove the locking of valve core shaft, thereby so that motor can drive valve core shaft and be with movable valve plug to open or close another desired location; When spool opens or closes another desired location and motor is had a power failure, control module provides signal switches on electromagnetic coil again, the magnetic field that the electromagnetic coil energising produces overcomes permanent magnets to the attraction force of magnetic piece, making electromagnetic coil and permanent magnets repel each other and move right namely moves away from the permanent magnets direction, electromagnetic coil moves two slide bars of pulling away from the permanent magnets direction and compresses the outer little spring of slide bar, driving semi-circular plate moves right together, and the interior little tooth of the semi-circular plate that makes semi-circular plate is stuck on the outer little tooth of rotating shaft, thereby again pinning valve core shaft no longer rotates, no longer rotating at valve core shaft is that electromagnetic coil was switched on always and kept pinning valve core shaft and do not rotate before motor was not received the instruction energising.

3, when the general power of supplying with electric control valve is cut off the power supply suddenly, electromagnetic coil cuts off the power supply and magnetic field diminishes, be enclosed within the spring-back force of the little spring on the slide bar and the magnetic attraction of permanent magnets attracting magnetic suction block this moment, with semi-circular plate, slide bar, the slide bar loop bar, electromagnetic coil and magnetic piece are moved to the left together, permanent magnets is held the magnetic piece of electromagnetic coil both sides and make in the semi-circular plate little tooth away from the outer little tooth of rotating shaft, remove the locking of valve core shaft, be returned to valve core shaft rotation and often offer fixed position or normally closed desired location because being subjected to the return spring return active force of valve core shaft overcoat this moment; Often offer fixed or normally closed setting and be design setting when producing, rather than can change setting after dispatching from the factory.

4, spool can be ball valve, and valve chamber is the valve chamber of ball valve; Spool also can be butterfly valve, and valve chamber is the valve chamber of butterfly valve.

5, be divided into electric control valve open in usual and Normally closed type electric control valve, electric control valve open in usual and Normally closed type electric control valve all have two-way regulating function, be spool when being in any position, can be on request or instruction make spool open again certain angle or turn down certain angle.

The present invention compared with prior art has the following advantages:

1, the present invention can be when running into suddenly outage of general power or having a power failure suddenly, can be under the effect of return spring power with the modulating valve returning quickly to the closing fully or full open position of factory setting, cut off or open and specify pipeline with the demand of the safety that guarantees the chemical industry material thereby can satisfy chemical enterprise needs when running into unexpected the power failure.

2, multi-purpose valve when realizing existing electric control valve function, can increase and often open or the function of normal-closed electromagnetic valve.

Description of drawings

Fig. 1 is the cross-sectional view of the embodiment of the invention;

Fig. 2 is middle A-A generalized section embodiment illustrated in fig. 1;

Fig. 3 is middle B-B generalized section embodiment illustrated in fig. 1;

Fig. 4 is middle Q enlarged diagram embodiment illustrated in fig. 1.

Among Fig. 1-4: 1, valve chamber 2, spool 3, motor 4, motor pillar 5, return spring 6, semi-circular plate 7, slide bar head 8, valve core shaft 9, electromagnetic coil power line 10, control module 11, electrical machinery cover 12, terminal box 13, general power line 14, signaling line 15, little tooth 16 in the semi-circular plate, the outer little tooth 17 of rotating shaft, slide bar 18, little spring 19, jack rod sleeve shaft bar 20, slide bar loop bar 21, permanent magnets 22, adjusting nut 23, slide bar fixing rod 24, magnetic piece 25, electromagnetic coil 26, the circular arc band.

Embodiment

In the embodiment shown in Fig. 1-4: normally-open normally-close formula electric adjusting device, be divided into electric control valve open in usual and Normally closed type electric control valve, electric control valve open in usual and Normally closed type electric control valve all have two-way regulating function, be spool 2 when being in any position, can be on request or instruction make spool 2 open again certain angle or turn down certain angle.

Make valve core shaft 8 overcome the return spring 5 power effects of valve core shaft 8 overcoats and make spool 2 open or close a certain desired location and when motor 3 is had a power failure when motor 3 receives signal, control module 10 provides signal and makes electromagnetic coil 25 energisings, the magnetic field that electromagnetic coil 25 energisings produce overcomes the attraction force of 21 pairs of magnetic pieces 24 of permanent magnets, making electromagnetic coil 25 and permanent magnets 21 repel each other and move right namely moves away from permanent magnets 21 directions, electromagnetic coil 25 moves two slide bars 17 of pulling and compresses slide bar 17 outer little springs 18 away from permanent magnets 21 directions, driving semi-circular plate 6 moves right together, and the interior little tooth 15 of the semi-circular plate that makes semi-circular plate 6 is stuck on the outer little tooth 16 of rotating shaft, no longer rotate thereby pin valve core shaft 8, electromagnetic coil 25 was switched on always and was kept pinning valve core shaft 8 and do not rotate this moment; When receiving signal again, motor 3 make valve core shaft 8 overcome the return spring 5 power effects of valve core shaft 8 overcoats and when making spool 2 open or close another desired location, control module 10 is when sending electricity for motor 3, provide signal cut electromagnetic coil 25 power supplys, make electromagnetic coil 25 outages and magnetic field diminishes, be enclosed within the spring-back force of the little spring 18 on the slide bar 17 and the magnetic attraction of permanent magnets 21 attracting magnetic suction blocks 24 this moment, with semi-circular plate 6, slide bar 17, slide bar loop bar 20, electromagnetic coil 25 and magnetic piece 24 are moved to the left together, permanent magnets 21 is held the magnetic piece 24 of electromagnetic coil 25 both sides and make in the semi-circular plate little tooth 15 away from the outer little tooth 16 of rotating shaft, remove the locking of valve core shaft 8, thereby so that motor 3 can drive valve core shaft 8 rotations and band movable valve plug 2 opens or closes another desired location; When spool 2 opens or closes another desired location and motor 3 is had a power failure, control module 10 provides signal switches on electromagnetic coil 25 again, the magnetic field that electromagnetic coil 25 energisings produce overcomes the attraction force of 21 pairs of magnetic pieces 24 of permanent magnets, making electromagnetic coil 25 and permanent magnets 21 repel each other and move right namely moves away from permanent magnets 21 directions, electromagnetic coil 25 moves two slide bars 17 of pulling and compresses slide bar 17 outer little springs 18 away from permanent magnets 21 directions, driving semi-circular plate 6 moves right together, and the interior little tooth 15 of the semi-circular plate that makes semi-circular plate 6 is stuck on the outer little tooth 16 of rotating shaft, thereby again pinning valve core shaft 8 no longer rotates, no longer rotating at valve core shaft 8 is before motor 3 is not received the instruction energising, and electromagnetic coil 25 keeps energising always and keep pinning valve core shaft 8 not rotating.

When the general power of supplying with electric control valve is cut off the power supply suddenly, electromagnetic coil 25 cuts off the power supply and magnetic field diminishes, be enclosed within the spring-back force of the little spring 18 on the slide bar 17 and the magnetic attraction of permanent magnets 21 attracting magnetic suction blocks 24 this moment, with semi-circular plate 6, slide bar 17, slide bar loop bar 20, electromagnetic coil 25 and magnetic piece 24 are moved to the left together, permanent magnets 21 is held the magnetic piece 24 of electromagnetic coil 25 both sides and make in the semi-circular plate little tooth 15 away from the outer little tooth 16 of rotating shaft, remove the locking of valve core shaft 8, the return spring 5 return active forces because being subjected to valve core shaft 8 overcoats were returned to valve core shaft 8 rotations and often offered fixed position or normally closed desired location this moment; Often offer fixed or normally closed setting and be design setting when producing, rather than can change setting after dispatching from the factory.

Claims

1. normally-open normally-close formula electric adjusting device, comprise a valve chamber 1 and be installed in the interior spool (2) of valve chamber (1), spool (2) top is connected with a valve core shaft (8), the other end of valve core shaft (8) links to each other with motor (3), valve core shaft (8) has a return spring (5) near the periphery cover of spool (2) one ends, there is the very intensive little tooth of the high vertical bar shape of one section 3cm in the hemicycle outside that valve core shaft (8) is close to return spring (5), form the outer little tooth (16) of semicolumn rotating shaft, the outer little tooth (16) of rotating shaft outside corresponding position has a semi-circular plate (6), there is little tooth (15) in the very intensive semi-circular plate of the high vertical bar shape of one section 4cm semi-circular plate (6) inboard, little tooth (15) and the outer little tooth (16) of the semicolumn rotating shaft engagement that can be complementary in the semi-circular plate; Semi-circular plate (6) two ends respectively are connected with a slide bar (17) and form U-shaped shape structure with semi-circular plate (6), slide bar (17) passes the hole at slide bar loop bar (20) two ends that are fixed on the jack rod sleeve shaft bar (19), then be connected with slide bar fixing rod (23) away from semi-circular plate (6) one sides, valve core shaft (8) is in semi-circular plate (6), pass in the framework that two slide bars (17) and slide bar loop bar (20) form, slide bar (17) with the Placement of slide bar fixing rod (23) is: slide bar (17) passes the aperture at slide bar fixing rod (23) two ends, and fixing by two adjusting nuts (22) that are screwed on the slide bar (17) of slide bar fixing rod (23) both sides; Each cover of two slide bars (17) outside between semi-circular plate (6) two ends and slide bar loop bar (20) has a little spring (18); It is characterized in that: jack rod sleeve shaft bar (19) links to each other with the neutral position of slide bar loop bar (20) and slide bar loop bar (20) is fixed on the jack rod sleeve shaft bar (19), position at jack rod sleeve shaft bar (19) fixed slip bar loop bar (20) is equipped with a permanent magnets (21) away from valve core shaft (8) one sides, slide bar fixing rod (23) the central authorities position corresponding with permanent magnets (21) is equipped with an electromagnetic coil (25), the both sides of electromagnetic coil (25) respectively are equipped with a magnetic piece (24), and the magnetic direction that electromagnetic coil (25) energising produces is opposite with the magnetic direction of permanent magnets (21); Control module (10) control electromagnetic coil (25) energising or the outage of control motor (3); Spool (2) is ball valve, and valve chamber (1) is exactly the valve chamber (1) of ball valve; Spool (2) is butterfly valve, and valve chamber (1) is exactly the valve chamber (1) of butterfly valve.