CN209430848U - It can show the valve of valve position - Google Patents

Abstract

The utility model provides the valve that can show valve position, belong to valve field, including valve body, valve rod and positioning sleeve, the valve rod is located in the valve body and relatively described valve body oscilaltion under the action of valve actuator, the end sleeve of the upper end of the valve rod is equipped with inductance loop, the inductance loop is metal material integrated molding, the upper end of the valve body is equipped with the first inductive switch and the second inductive switch, first inductive switch and the second inductive switch are parallel and horizontally disposed, first inductive switch is correspondingly arranged after passing through the valve body with the inductance loop, in the lower limit position of the valve rod, first inductive switch is correspondingly arranged with the inductance loop, in the upper limit position of the valve rod, second inductive switch is correspondingly arranged with the inductance loop.The utility model can detect the high-low limit position of valve rod, avoid driving device from dallying, valve rod is failure to actuate, the stability of lift structure.

Description

It can show the valve of valve position

Technical field

The utility model belongs to valve field, is related to show the valve of valve position.

Background technique

Valve is for being opened and closed pipeline, control flow direction, the parameter (temperature, pressure and flow) of regulation and control pumped (conveying) medium Pipeline fittings, be the control unit in fluid delivery system, have cut-off, adjusting, water conservancy diversion, prevent adverse current, pressure stabilizing, shunting or The functions such as overflow pressure relief can be used for controlling empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radiation The flowing of the various types fluids such as property medium, unused application environment need to select the valve of different model and specification, basis Actual conditions are selected.

The use environment of some valves limits, and can not observe practical situation, and the valve rod lifting of gate valve directly determines valve The upper and lower position of door, sometimes the driving device damage of valve, it may appear that the phenomenon that valve rod is failure to actuate, and driving device dallies, The control to pipeline is caused to make mistakes.

Utility model content

Problem to be solved in the utility model is to provide a kind of valve that can show valve position, can be into the upper and lower position of valve rod Row monitoring, guarantees the accuracy of valve rod movement.

In order to achieve the above objectives, the technical solution of the utility model is achieved in that the valve that can show valve position, including Valve body, valve rod and positioning sleeve, the valve rod is located in the valve body and relatively described valve body under the action of valve actuator Oscilaltion, the end sleeve of the upper end of the valve rod are equipped with inductance loop, and the inductance loop is metal material integrated molding, the valve The upper end of body is equipped with the first inductive switch and the second inductive switch, and first inductive switch and the second inductive switch be parallel and water Flat setting, first inductive switch is correspondingly arranged after passing through the valve body with the inductance loop, in the limit inferior of the valve rod Position, first inductive switch are correspondingly arranged with the inductance loop, in the upper limit position of the valve rod, second induction Switch is correspondingly arranged with the inductance loop.

Further, the valve actuator is motor and gears rotational structure, and the motor rotation passes through gear mechanism Structure drives the valve rod oscilaltion.

Further, the inductance loop includes ring body and induction protrusion, and the ring body is set on the valve rod, the sense Protrusion is answered to be extended to the direction far from the ring body center of circle, the induction protrusion and first inductive switch or the second sense Inductive switch is correspondingly arranged.

Further, it is described positioning be set between the valve rod and the valve body, the upper end of the positioning sleeve with it is described Between valve body be equipped with the first sealing ring, between the lower end of the positioning sleeve and the valve body be equipped with the second sealing ring, described first The specification of sealing ring is identical as the specification of second sealing ring.

Further, the outer ring on the positioning sleeve top be equipped with the first positioning convex platform, first positioning convex platform with it is described The first thrust bearing is equipped between valve body, the outer ring of the positioning sleeve lower part is equipped with the second positioning convex platform, second convex The second thrust bearing is equipped between platform and the valve body, first thrust bearing is consistent with the specification of the second thrust bearing.

Further, first sealing ring is located at the upper end of first thrust bearing, and second sealing ring is located at The lower end of second thrust bearing.

Compared with prior art, the utility model has the advantage that as follows with good effect.

1, the first inductive switch and the second inductive switch is arranged in the utility model, and is arranged in the upper end of valve rod and incudes Ring, inductance loop move up and down with valve rod, and the first inductive switch can perceive the lower limit position of valve rod, the second inductive switch sense The upper limit position for knowing valve rod detects two states of valve, avoids the occurrence of the failure hidden danger that idle running valve rod is failure to actuate, anti-in real time Present the on and off of valve, the safety of poppet.

2, inductance loop is arranged to ring body and incudes raised two parts, the relatively integrated thickness for reducing ring body reduces The cost of inductance loop, and if valve rod the problems such as generating deflection under maloperation, induction protrusion and the first inductive switch or the The dislocation of two inductive switches can not transmit signal, will be timely detected, the reliability of lift structure monitoring.

3, the specification of the first sealing ring is identical as the specification of the second sealing ring, facilitates and is bought, and also reduces inventory cost.

4, setting the first thrust bearing and the second thrust bearing after can increase positioning sleeving shaft to bearing capacity, promotion positioning sleeve Stability, and then guarantee valve mechanism fastness.

Detailed description of the invention

The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.? In attached drawing:

Fig. 1 is the structural schematic diagram for the valve that the utility model can show valve position；

Fig. 2 is the structural schematic diagram of the first inductive switch of the utility model, inductance loop and valve rod cooperation.

Appended drawing reference:

1- valve body；2- valve rod；3- inductance loop；31- ring body；32- induction protrusion；The first inductive switch of 4-；5- second incudes Switch；6- positioning sleeve；The first positioning convex platform of 61-；The second positioning convex platform of 62-；The first sealing ring of 71-；The second sealing ring of 72-；81- First thrust bearing；The second thrust bearing of 82-.

Specific embodiment

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another It is described, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

It elaborates with reference to the accompanying drawing to specific embodiment of the utility model.

As depicted in figs. 1 and 2, the utility model is the valve that can show valve position, including valve body 1, valve rod 2 and positioning sleeve 6, Valve rod 2 is located in valve body 1 and opposite 1 oscilaltion of valve body under the action of valve actuator, the end sleeve of the upper end of valve rod 2 Equipped with inductance loop 3, inductance loop 3 is metal material integrated molding, and the upper end of valve body 1 is equipped with the first inductive switch 4 and the second induction Switch 5, the first inductive switch 4 and the second inductive switch 5 are parallel and horizontally disposed, the first inductive switch 4 pass through valve body 1 after with sense Ring 3 is answered to be correspondingly arranged, in the lower limit position of valve rod 2, the first inductive switch 4 is correspondingly arranged with inductance loop 3, in the upper of valve rod 2 Extreme position, the second inductive switch 5 are correspondingly arranged with inductance loop 3.

Preferably, valve actuator is motor and gears rotational structure, and motor rotation passes through gear mechanism driving stem 2 Oscilaltion, gear structure transmits dynamical stability, and facilitates processing, and later maintenance cost is low.

Preferably, inductance loop 3 include ring body 31 and induction protrusion 32, ring body 31 is set on valve rod 2, induction protrusion 32 to Direction far from 31 center of circle of ring body is extended, induction protrusion 32 and the first inductive switch 4 or the second inductive switch 5 is corresponding sets It sets, inductance loop 3 is arranged to ring body 31 and incudes raised 32 two parts, the relatively integrated thickness for reducing ring body 31 reduces The cost of inductance loop 3, and if valve rod 2 the problems such as generating deflection under maloperation, induction protrusion 32 and first inductive switch 4 Or second inductive switch 5 dislocation can not transmit signal, will be timely detected, lift structure monitoring reliability.

Preferably, positioning sleeve 6 is located between valve rod 2 and valve body 1, and it is close that first is equipped between the upper end and valve body 1 of positioning sleeve 6 Seal 71 is equipped with the second sealing ring 72, lift-off seal performance, the rule of the first sealing ring 71 between the lower end and valve body 1 of positioning sleeve 6 Lattice are identical as the specification of the second sealing ring 72, facilitate and bought, also reduce inventory cost.

Preferably, the outer ring on 6 top of positioning sleeve is equipped with the first positioning convex platform 61, between the first positioning convex platform 61 and valve body 1 Equipped with the first thrust bearing 81, the outer ring of 6 lower part of positioning sleeve is equipped with the second positioning convex platform 62, the second positioning convex platform 62 and valve body 1 Between be equipped with the second thrust bearing 82, the first thrust bearing 81 is consistent with the specification of the second thrust bearing 82, facilitate carry out inventory, Inventory cost is reduced, the axial bearing capacity of positioning sleeve 6 can be increased after the first thrust bearing 81 and the second thrust bearing 82 are set, mentioned The stability of positioning sleeve 6 is risen, and then guarantees the fastness of valve mechanism.

Preferably, the first sealing ring 71 is located at the upper end of the first thrust bearing 81, and the second sealing ring 72 is located at the second thrust The lower end of bearing 82 guarantees the sealing performance of 6 upper and lower end parts of positioning sleeve.

In the actual use process, the driving device of valve, motor drive about 2 valve rod to transport by gear mechanism Dynamic, the lower limit position of lower valve rod 2, the first inductive switch 4 is corresponding with induction protrusion 32, and the first inductive switch 4 transmits signal, generation Meter valve is in the closed state of lower limit position, and when the movement of valve rod 2 moves upward to upper limit position, the second induction is opened 5 transmitting signals are closed, the first inductive switch 4 and the second inductive switch 5 are in sense state simultaneously, show that valve rod 2 is in limes superiors Position, if the second inductive switch 5 has signal, the first inductive switch 4 does not have signal, and representing the first inductive switch 4, there are failure, senses Failure is answered, is needed replacing, the first inductive switch 4 and the second inductive switch 5 are electrically connected with PLC control centre, realize long-range control System and monitoring, operate more convenient, high reliablity.

One embodiment of the utility model is described in detail above, but the content is only the utility model Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model All the changes and improvements etc., should still belong within the patent covering scope of the utility model.

Claims (6)

1. the valve of valve position can be shown, it is characterised in that: including valve body, valve rod and positioning sleeve, the valve rod is located at the valve body The end sleeve of interior and relatively described valve body oscilaltion under the action of valve actuator, the upper end of the valve rod is equipped with induction Ring, the inductance loop are metal material integrated molding, and the upper end of the valve body is equipped with the first inductive switch and the second inductive switch, First inductive switch and the second inductive switch are parallel and horizontally disposed, first inductive switch pass through the valve body after with The inductance loop is correspondingly arranged, and in the lower limit position of the valve rod, first inductive switch is corresponding with the inductance loop to be set It sets, in the upper limit position of the valve rod, second inductive switch is correspondingly arranged with the inductance loop.

2. the valve according to claim 1 for showing valve position, it is characterised in that: the valve actuator be motor and Gears rotational structure, the motor rotation drive the valve rod oscilaltion by gear mechanism.

3. the valve according to claim 1 for showing valve position, it is characterised in that: the inductance loop includes ring body and induction Protrusion, the ring body are set on the valve rod, and the induction protrusion is extended to the direction far from the ring body center of circle, institute Induction protrusion is stated to be correspondingly arranged with first inductive switch or the second inductive switch.

4. the valve according to claim 1 for showing valve position, it is characterised in that: it is described positioning be set in the valve rod with Between the valve body, between the upper end of the positioning sleeve and the valve body be equipped with the first sealing ring, the lower end of the positioning sleeve with The second sealing ring is equipped between the valve body, the specification of first sealing ring is identical as the specification of second sealing ring.

5. the valve according to claim 4 for showing valve position, it is characterised in that: the outer ring on the positioning sleeve top is equipped with First positioning convex platform is equipped with the first thrust bearing between first positioning convex platform and the valve body, the positioning sleeve lower part Outer ring be equipped with the second positioning convex platform, between second positioning convex platform and the valve body be equipped with the second thrust bearing, described first Thrust bearing is consistent with the specification of the second thrust bearing.

6. the valve according to claim 5 for showing valve position, it is characterised in that: first sealing ring is located at described The upper end of one thrust bearing, second sealing ring are located at the lower end of second thrust bearing.