CN208381477U - Regulating valve - Google Patents

Abstract

Regulating valve.Mainly solve the problems, such as present regulating valve do not have detect its stepper motor in initial position whether in place.It is characterized by: being equipped with switch (5) in the valve body, the spool peripheral outer wall is equipped with the protrusion (40) for the handle of push switch when the motor is in initial position.The utility model provides regulating valve, its stepper motor is in initial position, initial position is also at by the motor-driven spool, and by convex block push switch, there is signal output at this time, if motor misplaces, the convex block on spool can be staggered the handle of switch, it is exported at this time without signal, plays the role of detection.

Description

Regulating valve

Technical field

The utility model relates to regulating valve fields, and it is useless during water processed specially to can be applied to water dispenser, water-making machine The regulating valve of water flow.

Background technique

Regulating valve also known as control valve, in industrial automation process control field, by receiving regulation unit output Control signal, the final control element for changing rate-of flow, pressure, temperature, the technological parameters such as liquid level is removed by power operation. Generally it is made of executing agency and valve.If pressing stroke feature, regulating valve can be divided into Direct Travel and angle stroke；Match by it and holds The power that row mechanism uses can be divided into pneumatic control valve, electric control valve, three kinds of hydraulic adjusting valve；By its function and characteristic It is divided into linear characteristic, equal percentage characteristics and three kinds of parabolic characteristic.Regulating valve is suitable for empty gas and water, steam, various corrosivity The media such as medium, mud, oil product.

The spool of present adjusting is driven by stepper motor mostly and is rotated, and is by program setting when stepper motor work Umber of pulse operation, in the process of running, stepper motor has step-out phenomenon, however present regulating valve cannot detect its stepper motor Whether in place in initial position.

Utility model content

In order to overcome the shortcomings of background technique, the utility model provides regulating valve, mainly solves present regulating valve not Have detect its stepper motor in initial position whether in place the problem of.

The technical scheme adopted by the utility model is

Regulating valve, including valve body, the valve body include entering channel and flow pass, are equipped in the valve body by stepping electricity The spool of machine driving rotation, the spool are equipped with switch, the spool in the valve body for switching water flow size when rotating Peripheral outer wall is equipped with the protrusion for the handle of push switch when the motor is in initial position.

The spool is equipped with the mounting groove for the output axis connection with motor.

The spool outer wall is equipped with the different inlet through hole of several diameters, and the inlet through hole is corresponding with channel is entered Setting.

The spool bottom is equipped with the open slot being connected to the inlet through hole, is equipped with gasket, the pad in the valve body Elastic component is equipped between piece and the valve interior wall, the gasket is closely matched under the action of the elastic component with the open slot It closes, the first through slot being correspondingly arranged with the open slot is equipped in the valve body.

The elastic component is spring.

Block is equipped in the valve body, the spool circumferential direction wall, which is equipped with, is correspondingly provided with convex block with the block.

The cross section of the protrusion is triangle.

It is equipped with the first wall and the second wall in the valve body, fixing groove is equipped between first wall and the second wall, it is described solid Determine slot and the switch is engaged by clamping, the valve outer wall and the fixing groove are correspondingly provided with the second through slot, second through slot Conducting wire for switch passes through.

The beneficial effects of the utility model are: the utility model provide regulating valve, stepper motor in initial position, by The motor-driven spool is also at initial position, and by convex block push switch, there is signal output at this time, if motor misplaces, valve Convex block on core can be staggered the handle of switch, export at this time without signal, play the role of detection.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram of the utility model one embodiment.

Fig. 2 is inside (motor is in initial position) stereoscopic schematic diagram of the utility model one embodiment.

Fig. 3 is the partial schematic sectional view of the utility model one embodiment.

Fig. 4 is the stereoscopic schematic diagram of the spool of the utility model one embodiment.

Fig. 5 is the sectional perspective schematic diagram of the spool of the utility model one embodiment.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing: regulating valve, including valve body 1, the valve body include into Enter channel 2 and flow pass 3, is equipped in the valve body by the spool 4 of stepper motor driving rotation, the spool is for when rotating Switch water flow size, switch 5 is equipped in the valve body, the spool peripheral outer wall is equipped with for when the motor is in initial The protrusion 40 of the handle of push switch when position.Its stepper motor is also in initial position by the motor-driven spool Initial position, and by convex block push switch, there is signal output at this time, if motor misplaces, the convex block on spool can be staggered switch Handle exports without signal at this time, plays the role of detection, which can connect with alarm, such as indicator light or bee Ring device is reminded to realize, can also connect with wiring board, to realize further control, initial position said herein is referred to The position being in when stepper motor is inactive and rigid starting is at this time initial position referring to attached drawing 2, and the convex block of spool is Pressing is on switch.Preferably, setting the wiring board of control stepper motor on the mediation valve, every time when starting, will detect Initial position has no signal output, if signal is not detected, stepper motor will return to initial position.Preferably, the switch For microswitch.

In the present embodiment, as shown, the spool is equipped with the mounting groove 41 for the output axis connection with motor. The output shaft of motor is extend into mounting groove to be rotated synchronously for band movable valve plug, and structure is simple, easy to use.

In the present embodiment, as shown, the spool outer wall is equipped with the different inlet through hole 42 of several diameters, institute Inlet through hole is stated to be correspondingly arranged with into channel.By rotational valve core, different inlet through hole may be implemented to intake, Ke Yishi The adjustment of existing flow.

In the present embodiment, as shown, the spool bottom is equipped with the open slot 43 being connected to the inlet through hole, institute It states and is equipped with gasket 11 in valve body, elastic component 12 is equipped between the gasket and the valve interior wall, the gasket is in the elasticity It is fitted close under the action of part with the open slot, the first through slot being correspondingly arranged with the open slot is equipped in the valve body 31.Rotary spool makes inlet through hole and enters channel to upper, and water flow enters, and when hydraulic pressure is larger, overcomes the pressure of spring, makes Open slot and the connection of the first through slot, flow out of the water outlet pipe water, when hydraulic pressure is smaller, gasket is tight with open slot under the action of the spring Close fit prevents the medium in flow pass from flowing backwards, and water flow is flowed out by the first through slot from flow pass.

In the present embodiment, as shown, the elastic component is spring.

In the present embodiment, as shown, being equipped with block 17 in the valve body, the spool circumferential direction wall is equipped with and the gear Block is correspondingly provided with convex block 44.Prevent spool from reversing, the flow not reached requirement.

In the present embodiment, as shown, the cross section of the protrusion is triangle.Locating effect is more preferably.

In the present embodiment, as shown, being equipped with the first wall 13 and the second wall 14 in the valve body, first wall and the Fixing groove 15 is equipped between two walls, the fixing groove and the switch are engaged by clamping, the valve outer wall and the fixing groove pair It should be equipped with the second through slot 16, conducting wire of second through slot for switch passes through.Easy for installation, stabilized structure.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this The limitation of utility model.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and should not be understood as pair The limitation of the utility model.Embodiment is not construed as limitations of the present invention, but any spirit based on the utility model Improvements introduced should be all within the protection scope of the utility model.

Claims (8)

1. regulating valve, including valve body (1), the valve body includes entering channel (2) and flow pass (3), is equipped in the valve body By the spool (4) of stepper motor driving rotation, the spool is for switching water flow size when rotating, it is characterised in that: described Switch (5) is equipped in valve body, the spool peripheral outer wall is equipped with for the push switch when the motor is in initial position The protrusion (40) of handle.

2. regulating valve according to claim 1, it is characterised in that: the spool is equipped with for the output shaft with motor The mounting groove (41) of connection.

3. regulating valve according to claim 2, it is characterised in that: it is different that the spool outer wall is equipped with several diameters Inlet through hole (42), the inlet through hole be correspondingly arranged into channel.

4. regulating valve according to claim 3, it is characterised in that: the spool bottom is equipped with to be connected with the inlet through hole Logical open slot (43), the valve body is interior to be equipped with gasket (11), and elastic component is equipped between the gasket and the valve interior wall (12), the gasket is fitted close under the action of the elastic component with the open slot, is equipped in the valve body and is opened with described The first through slot (31) that mouth slot is correspondingly arranged.

5. regulating valve according to claim 4, it is characterised in that: the elastic component is spring.

6. regulating valve according to claim 5, it is characterised in that: be equipped with block (17) in the valve body, the spool Circumferential wall, which is equipped with, is correspondingly provided with convex block (44) with the block.

7. regulating valve according to claim 6, it is characterised in that: the cross section of the protrusion is triangle.

8. regulating valve according to claim 7, it is characterised in that: be equipped with the first wall (13) and the second wall in the valve body (14), fixing groove (15) are equipped between first wall and the second wall, the fixing groove and the switch are engaged by clamping, the valve External wall and the fixing groove are correspondingly provided with the second through slot (16), and conducting wire of second through slot for switch passes through.