CN109681651A - A kind of automatically controlled on-off valve - Google Patents

Abstract

The invention discloses a kind of automatically controlled on-off valves, comprising: main valve body is provided with the intracorporal vertical passage of main valve, set on the on off mechanism of vertical passage lower part, the link block for being fixed on upper part of the main valve body, the driving device that is fixed on link block；The on off mechanism includes: drive screw, sealing active door, guiding plug, insulated spring；The drive screw upper end is drivingly connected in driving device, and lower thread connects sealing active door；The sealing active door lower part extends in guiding plug, and with guiding plug clearance fit to move up and down；The guiding plug upper end extends to the second flow channel, and lower end is sealedly attached to main valve body；By using the automatically controlled on-off valve, thrust is big, less energy-consuming, and installation volume is smaller, is not only able to be suitable for big orifice pipeline, and energy conservation and environmental protection.

Description

A kind of automatically controlled on-off valve

Technical field

The present invention relates to on-off valve technical fields, more particularly to a kind of automatically controlled on-off valve.

Background technique

In parameter (temperature, pressure and the stream that valve is for being opened and closed pipeline, control flow direction, regulation and control pumped (conveying) medium Amount) pipeline fittings, according to effect and purposes can be divided into shut-off valve, check-valves, regulating valve, on-off valve is exactly one in shut-off valve Kind, as the continuous leather of valve manufacture technology improves, currently used on-off valve has self-service on-off valve and guide electromagnetic valve, from Helping on-off valve is the on-off for the pressure medium control valve set up in being started and run using system, guide type electromagnetic on-off Valve has pilot mechanism, is first to open pilot hole to flow into medium and pressure release, so that electromagnet is had an effect to open valve.

Due to the use pilot-operated type structure of the valve of pilot-operated type, the defect that pilot hole is blocked vulnerable to impurity, damage frequency is high, Maintenance cost is higher, and is powered always when electromagnetic valve work, and structure is complicated, big energy-consuming, and self-service on-off valve sealing property is poor, work Pressure is restricted, and there are also a kind of Direct Action Type on-off valves, but the small product size of Direct Action Type on-off valve is big, and power consumption is larger, reduces Productivity effect, with being widely used for on-off valve, develop be applicable in big orifice, small in size, at low cost, energy-saving and environment-friendly on-off valve at For current urgent problem.

Summary of the invention

The present invention is intended to provide a kind of automatically controlled on-off valve, to solve on-off valve existing in the prior art, structure is complicated, Maintenance cost is high, and consume energy big problem, develops suitable for big orifice, small in size, energy conservation and environmental protection, on-off valve at low cost.

To achieve the above object, one technical scheme adopted by the invention is that: provide a kind of automatically controlled on-off valve, comprising: main Valve body, be provided with the intracorporal vertical passage of main valve, set on vertical passage lower part on off mechanism, be fixed on the company of upper part of the main valve body The driving device for connecing block, being fixed on link block；The two sides of the main valve body offer respectively leads to the first-class of vertical passage Road and second flow channel；The link block blocks the top of the vertical passage；The on off mechanism includes: drive screw, sealing Valve, guiding plug, insulated spring；The drive screw upper end is drivingly connected in driving device, and lower thread connection sealing is lived Door；The sealing active door lower part extends in guiding plug, and with guiding plug clearance fit to slide up and down；The guiding is stifled Head upper end extends to the second flow channel, and lower end is sealedly attached to main valve body；Conductive groove is offered in the main valve body；It is described The mobile stroke of sealing active door are as follows: up to conductive groove, down toward the top of guiding plug；The insulated spring upper end is connected to close Valve is sealed, lower end connects the guiding plug；The link block is equipped with conductive pin；The guiding plug lower part is equipped with the first electricity Connection jaws；The main valve body is equipped with the second electrical connection mouth；The main valve body, drive screw, sealing active door, guiding plug are Electric conductor.

Further, the top of the sealing active door is in disk；The disk border raises upward to form flange collar, described Flange collar is equipped with resilient conductive contact part；The resilient conductive contact part is fixed on sealing active door by spring, and with sealing Valve is conductively connected.

Further, vulcanization of rubber cushion block is equipped in the flange collar.

Further, the side of the resilient conductive contact part is equipped with insulating trip；The insulating trip is fixedly connected on described The upper surface of flange collar.

Further, the guiding plug includes: clearance fit portion, sealed connection portion；The clearance fit portion and sealing Interconnecting piece is integrally formed；The clearance fit portion is located at the top in sealed connection portion；The top in the clearance fit portion is equipped with and leads Electric contact piece.

Further, the inner wall in the clearance fit portion is equipped with several longitudinally connected cloth muscles.

Further, the conductive pin sets brush close to one end of drive screw, and the other end is equipped with control circuit；It is described to lead Electricity pin is electrically connected to control circuit.

Further, O-ring seal a is set between the drive screw and link block；The drive screw and sealing are lived O-ring seal b is set between door；The guiding plug is tightly connected with the main valve body 1 by O-ring seal c.

Further, wear-resistant material is coated on the outer wall of the drive screw.

Further, the driving device includes: the motor being fixed on the link block, axis connection in the motor of motor Shaft；The upper end of the drive screw is cooperated using being full of or is bolted in the machine shaft.

The beneficial effects of the present invention are: using the automatically controlled on-off valve, by being arranged in the intracorporal drive screw of main valve by driving Dynamic device driving is to drive sealing active door to move up and down in the guiding plug, to make sealing active door move up to close Second flow channel, meanwhile, sealing active door is contacted with main valve body and conduction, turns on the circuit of the first connection jaws；Sealing active door is downward It moves to open second flow channel, meanwhile, sealing active door and guiding plug contact are simultaneously conductive, turn on the electricity of the second connection jaws Road；Control circuit is accessed to control the operation of driving device, to realize control by the first connection jaws and the second connection jaws On-off between first runner and second flow channel, is driven using drive screw, and thrust is big, less energy-consuming, and installation volume is smaller, It is not only able to be suitable for big orifice pipeline, and energy conservation and environmental protection.

Detailed description of the invention

Fig. 1 is the internal structure cross-sectional view of automatically controlled on-off valve provided by the invention；

Fig. 2 is the partial enlarged view of line A-A circle in Fig. 1；

Fig. 3 is guiding plug structure top view in automatically controlled on-off valve provided by the invention；

Appended drawing reference: 1- main valve body, 2- vertical passage, 3- on off mechanism, 4- link block, 41- conductive pin, 42- brush, 43- control circuit, 5- driving device, 51- motor, 52- machine shaft, 6- first runner, 7- second flow channel, 31- are passed Dynamic screw rod, 311-O type sealing ring a, 312-O type sealing ring b, 313-O type sealing ring c, 32- sealing active door, 33- guiding Plug, 331- clearance fit portion, 332- sealed connection portion, 333- conductive contact piece, 334- cloth muscle, 34- insulated spring, 11- conduction groove, 35- the first electrical connection mouth, 36- the second electrical connection mouth, 37- disk, 38- flange collar, the 381- vulcanization of rubber Cushion block, 39- resilient conductive contact part, 391- insulating trip.

Specific embodiment

The specific embodiment of automatically controlled on-off valve provided by the invention is described in detail with reference to the accompanying drawing.

In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside", " axial direction ", positional relationship To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or It implies that signified device or part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as Limitation of the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, belong to " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.

As shown in Figure 1, automatically controlled on-off valve provided by the invention, comprising: main valve body 1, the longitudinal direction being provided in main valve body 1 are logical Road 2, set on 2 lower part of vertical passage on off mechanism 3, be fixed on 1 top of main valve body link block 4, be fixed on link block 4 Driving device 5；The two sides of the main valve body 1 offer the first runner 6 and second flow channel 7 for leading to vertical passage 2 respectively；It is described Link block 2 blocks the top of the vertical passage 2；The on off mechanism 3 includes: drive screw 31, sealing active door 32, is oriented to and blocks up First 33, insulated spring 34；31 upper end of drive screw is drivingly connected in driving device 5, and lower thread connects sealing active door 32； 32 lower part of sealing active door extends in guiding plug 33, and with 33 clearance fit of guiding plug to slide up and down；It is described to lead The second flow channel 7 is extended to 33 upper end of plug, lower end is sealedly attached to main valve body 1；Conduction is offered in the main valve body 1 Groove 11；The mobile stroke of the sealing active door 32 are as follows: up to conductive groove 11, down toward the top of guiding plug 33；It is described exhausted 34 upper end of edge spring is connected to sealing active door 32, and lower end connects the guiding plug 33；The link block 4 is equipped with conductive pin 41；33 lower part of guiding plug is equipped with the first electrical connection mouth 35；The main valve body 1 is equipped with the second electrical connection mouth 36；It is described Main valve body 1, drive screw 31, sealing active door 32, guiding plug 33 are electric conductor.

In automatically controlled on-off valve of the present invention, the main valve body is electric conductor, opens up longitudinal direction at the main valve body center Channel 2, and first runner and second flow channel are opened up in two sides, to realize the stream for being switched off or on second flow channel and vertical passage It is logical, to cut off first runner and second flow channel, vertical passage play accommodate the on off mechanism be connected to first runner and second The effect of runner；Herein it should be noted that the link block 2 blocks the top of the vertical passage 2, link block can pass through It welds to block the top of the vertical passage, the sealed connection combined with sealing ring can also be bolted to block At the top of the vertical passage, occurs so as to avoid the case where valve body top leakage, ensure that the normal operation of on-off valve.

In the automatically controlled on-off valve, the driving device can be preferably using motor 51, the axis being fixed on the link block 4 It is connected to the driving mechanism that the machine shaft 52 of motor 51 forms, by giving electrical power, to realize the left or right rotation of motor, The control circuit that can be formed by PLC control circuit board is electrically connected to the operating that motor realizes control motor；The transmission spiral shell 31 upper end of bar is drivingly connected in driving device 5, and drive connection described herein can use and adopt the upper end of the drive screw 31 Cooperated with being full of or be bolted in the machine shaft 52, machine shaft band can be passed through when the rotation of motor driven machine shaft Dynamic drive screw 31 rotates, to realize the rotation of control and driving drive screw.

In automatically controlled on-off valve provided by the invention, 31 lower thread of drive screw connects sealing active door 32, described close Envelope valve is that can move up and down and air-tight movable component that upper end can be in sealing contact with main valve body, as shown in Fig. 2, can be excellent Choosing uses top for disk 37, and 37 edge of disk raises upward to form flange collar sealing active door, the lower surface energy of the disk on top The top of the guiding plug is enough contacted and be supported on, realizes conductive and to limit its stroke is up to conductive groove 11, down toward leading To the top of plug 33.

Also, by being equipped with resilient conductive contact part 39 in the flange collar 38；The resilient conductive contact part 39 passes through Spring is fixed on sealing active door, and with sealing active door 32 be conductively connected, with this realize sealing active door move up can conduction connect Touch main valve body 1 enables mechanical rotatory force directly to pass with the purpose of turning circuit by drive screw seal with screwed joint valve The thrust increased to sealing active door element to sealing active door is moved, in the case where first runner and second flow channel are big orifice, It still can be realized on-off, and drive the driving method of screw rod rotation only with motor, to realize less energy-consuming, to have There is the advantages of energy conservation and environmental protection.

Conductive groove 11 is opened up on the main valve body, the conduction groove can be by using milling work when processing main valve body Skill carries out processing and forms conductive groove as shown in Figure 1, the setting of conductive groove enable the side wall of conductive groove with it is described convex Set vulcanization of rubber cushion block 381 forms sealing structure in circle 38, meanwhile, and will not influence the resilient conductive contact part in flange collar Electric conductivity.The link block 4 is equipped with conductive pin 41, can be by being wired to control electricity outside the conductive pin 41 Conductive pin 41 can be set brush 42 close to one end of drive screw 31 herein by road, to not influence the same of drive screw rotation When, circuit can be connected with the drive screw, realize conductive function, and the contact of the conductive pin and the link block Face is insulation.

In automatically controlled on-off valve provided by the invention, as shown in Fig. 2, the side of the resilient conductive contact part 39 is equipped with insulation Piece 391；The insulating trip 391 is fixedly connected on the upper surface of the flange collar 38, by passing through and can lead resilient conductive contact part The spring of electricity is connected to the inside of the flange collar 38, and the surface of flange collar 38 is insulation, and sealing active door is made to have peace in conduction Full property and stability.

In automatically controlled on-off valve provided by the invention, the guiding plug 33 includes: clearance fit portion 331, sealed connection portion 332；The clearance fit portion 331 and sealed connection portion 332 are integrally formed；The clearance fit portion 331 is located at sealed connection portion 332 top；The top in the clearance fit portion is equipped with conductive contact piece 333, as shown in figure 3, in clearance fit portion 333 Wall is equipped with several longitudinally connected cloth muscles 334, and by the way that guiding plug is arranged to this structure, sealed connection portion can be more preferable Be tightly connected with main valve body, clearance fit portion can cooperate with the lower part of sealing active door be such that it moves up and down, also, pass through cloth The setting of muscle increases sealing active door lower part and gap when sealing active door is transmitted and moves down due to screw rod drives because being threadedly coupled The side-friction of auxiliary section, can also be by opening up the recessed groove with cloth muscle cooperation in sealing active door lower part, by cloth muscle It is stuck in recessed groove, to limit sealing active door rotation, makes sealing active door that can only move up and down under threaded function, realization is led To guiding role of the plug when sealing active door moves up and down.

In automatically controlled on-off valve of the present invention, O-ring seal is set between the drive screw 31 and link block 4 a311；O-ring seal b312 is set between the drive screw 31 and sealing active door 32；The guiding plug 33 and the main valve Body 1 is tightly connected by O-ring seal c313, also, is coated with wear-resistant material on the outer wall of drive screw 31, passes through many places O The setting of type sealing ring improves the sealing performance of the automatically controlled on-off valve, and wear-resistant material is applied on drive screw with increased portion The durability of part preferably prevents its damage, extends service life, herein it should be noted that wear-resistant material can be KN17 Polymer ceramic polymer, but be not limited only to use as unique wear-resistant material.

Working principle: when needing first runner and second flow channel in connected graph 1: electrical power dextrorotation, machine shaft band Dynamic drive screw rotation drives sealing active door to move down and compress the insulated spring, on sealing active door with drive screw Resilient conductive contact part and main valve body are separated with the conductive groove, and second flow channel is connected to vertical passage, to turn on the One runner and second flow channel；When sealing active door, which is displaced downwardly to, to be contacted with the electrically conductive contacting devices 333 on guiding plug, drive screw → close The circuit loop of envelope valve → guiding plug to the second electrical connection mouth is switched to control circuit, control circuit control by conductive pin Motor power-off, so that valve is no longer powered after opening；When needing to cut off first runner and second flow channel: control circuit control electricity Machine is left-handed, and machine shaft drives drive screw rotation, and sealing active door is driven to move up under the spring-force driven dual of insulated spring, When the conductive groove that sealing active door is moved on elastic conduction contact element and main valve body contacts, conductive screw → sealing active door → main valve Body to the first electrical connection mouth circuit loop by being wired to control circuit in the first connection jaws, control circuit controls motor Power-off, the final circulation for cutting off first runner and second flow channel.

The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims (10)

1. a kind of automatically controlled on-off valve characterized by comprising main valve body is provided with the intracorporal vertical passage of main valve, is set to longitudinal direction The on off mechanism of beneath galleries, the link block for being fixed on upper part of the main valve body, the driving device being fixed on link block；The main valve The two sides of body offer the first runner and second flow channel for leading to vertical passage respectively；The link block blocks the vertical passage Top；The on off mechanism includes: drive screw, sealing active door, guiding plug, insulated spring；The drive screw upper end It is drivingly connected in driving device, lower thread connects sealing active door；The sealing active door lower part extends in guiding plug, and with Guiding plug clearance fit is to move up and down；The guiding plug upper end extends to the second flow channel, and lower end is sealedly attached to Main valve body；Conductive groove is offered in the main valve body；The stroke that the sealing active door moves up and down are as follows: up to conductive groove, Down toward the top of guiding plug；The insulated spring upper end is connected to sealing active door, and lower end connects the guiding plug；The company Block is connect equipped with conductive pin；The guiding plug lower part is equipped with the first electrical connection mouth；The main valve body is equipped with the second electrical connection Mouthful；The main valve body, drive screw, sealing active door, guiding plug are electric conductor.

2. automatically controlled on-off valve according to claim 1, it is characterised in that: the top of the sealing active door is in disk；Institute It states disk border to raise upward to form flange collar, the upper convex ring is equipped with resilient conductive contact part；The resilient conductive contact part It is fixed on sealing active door by spring, and is conductively connected with sealing active door.

3. automatically controlled on-off valve according to claim 2, it is characterised in that: be equipped with vulcanization of rubber cushion block in the flange collar.

4. automatically controlled on-off valve according to claim 2, it is characterised in that: the side of the resilient conductive contact part is equipped with exhausted Embolium；The insulating trip is fixedly connected on the upper surface of the flange collar.

5. automatically controlled on-off valve according to claim 1, it is characterised in that: the guiding plug includes: clearance fit portion, close Seal interconnecting piece；The clearance fit portion and sealed connection portion are integrally formed；The clearance fit portion is located at the upper of sealed connection portion Side；The top in the clearance fit portion is equipped with conductive contact piece.

6. automatically controlled on-off valve according to claim 5, it is characterised in that: the inner wall in the clearance fit portion is equipped with several The longitudinally connected cloth muscle of item.

7. automatically controlled on-off valve according to claim 1, it is characterised in that: the conductive pin is set close to one end of drive screw Brush, the other end are equipped with control circuit；The conductive pin is electrically connected to control circuit.

8. automatically controlled on-off valve according to claim 1, it is characterised in that: O is arranged between the drive screw and link block Type sealing ring a；O-ring seal b is set between the drive screw and sealing active door；The guiding plug and the main valve body 1 It is tightly connected by O-ring seal c.

9. automatically controlled on-off valve according to claim 8, it is characterised in that: be coated with wear-resisting material on the outer wall of the drive screw Material.

10. automatically controlled on-off valve according to claim 1, it is characterised in that: the driving device includes: to be fixed on the company Motor on block, axis connection are connect in the machine shaft of motor；The upper end of the drive screw using be full of cooperation or be bolted in The machine shaft.