CN207651414U - Plastic pressure switchs - Google Patents

Abstract

The claimed plastic pressure switch of the utility model, including valve body, shell, microswitch and spring retainer regulating mechanism；Import, outlet and the pressure port between the import and the outlet are provided on the valve body, the pressure port upper cover is equipped with the diaphragm for sealing the pressure port；The diaphragm is being provided with a push rod away from the side of pressure port, and the push rod is connect with microswitch upwards, realizes that the keying to microswitch controls to drive up push rod by diaphragm；The microswitch is located in the shell, and the side spring retainer regulating mechanism limit of the push rod is fixed on shell.The utility model has completely cut off the pollution of medium on valve body, and push microswitch to work using the principle of lever by the structure setting of diaphragm；Meanwhile passing through the structure setting of spring retainer regulating mechanism so that the pressure switch is suitable for using under a variety of pressure conditions, and then meets the use demand of people.

Description

Plastic pressure switchs

Technical field

The utility model belongs to the relevant technical field of microswitch, is switched more particularly to a kind of plastic pressure.

Background technology

Pressure switch is a kind of simple pressure control device, and when reaching rated value by measuring pressure, pressure switch can be sent out Go out alarm or control signal.

Currently, what existing pressure switch was mostly prepared by metal material, the gas or liquid to be circulated on valve body The medium of body when in use, can generate pressure switch itself certain corrosion；And existing pressure switch is at work, it is only suitable For the normal use under a kind of pressure condition, the use demand of people cannot be met.

Utility model content

Based on this, it is necessary to for the technical problems in the prior art, provide a kind of plastic pressure switch.

Specifically, a kind of plastic pressure switch, including valve body, the shell for being fixed in valve body, and it is micro- in shell Dynamic switch；It is provided with inlet and outlet on the valve body, the valve body is between import and outlet towards opening at the position of shell A diaphragm is set to seal equipped with a pressure port, and in the pressure port upper cover；The diaphragm is provided in the side away from pressure port One push rod, the push rod are connect with microswitch upwards, are opened microswitch with driving up push rod by diaphragm to realize Close control；The side spring retainer regulating mechanism limit of the push rod is fixed on shell.

As the preferred embodiment of the utility model, the push rod is arranged in shell, and the push rod is towards diaphragm Side is provided with lower pillar, to be contacted with diaphragm.

As the preferred embodiment of the utility model, a jacking block is provided between the lower pillar and diaphragm of the push rod.

As the preferred embodiment of the utility model, the diaphragm is inlaid in the pressure port of valve body, and shell is used in combination to be pressed It fastens.

As the preferred embodiment of the utility model, the spring retainer regulating mechanism includes spring, spring pressuring plate and adjusting Button, wherein the side of the spring is resisted against on push rod, the other side is contacted with spring pressuring plate, and the adjusting knob compresses downwards On a side end face of the spring pressuring plate away from spring.

As the preferred embodiment of the utility model, the adjusting knob is arranged on shell threadably.

As the preferred embodiment of the utility model, pillar is provided on the push rod, the spring is socketed in push rod On upper pillar, and contacted with push rod.

As the preferred embodiment of the utility model, the push rod offers a ring recess in the periphery of upper pillar, to accommodate bullet Spring.

As the preferred embodiment of the utility model, the valve body and shell are prepared by plastic material.

Due to the application of the above technical scheme, the utility model has following advantages compared with prior art：

Plastic pressure construction of switch provided by the utility model is simple, can be by valve in-vivo medium in valve body pressure port Pressure caused by diaphragm controls the keying of microswitch to push push rod to realize, the structure setting of diaphragm has completely cut off valve The pollution of medium on body, and push microswitch to work using the principle of lever；Meanwhile passing through spring retainer regulating mechanism Structure setting so that the pressure switch is suitable for using under a variety of pressure conditions, and then meets the use demand of people.

Description of the drawings

Fig. 1 is the structural schematic diagram of plastic pressure provided by the utility model switch.

Wherein, 10, valve body；11, import；12, it exports；13, pressure port；14, diaphragm；20, shell；30, push rod；31, under Pillar；32, upper pillar；33, ring recess；40, microswitch；50, jacking block；61, spring；62, spring pressuring plate；63, adjusting knob.

Specific implementation mode

Referring to Fig. 1, the claimed plastic pressure switch of the utility model, including valve body 10, shell 20, and be set to Push rod 30, microswitch 40 in shell 20 and spring retainer regulating mechanism.Wherein, the valve body 10 and shell 20 are by plastics Material is prepared.

Import 11 and outlet 12 are provided on the valve body 10, and towards shell between the import 11 and outlet 12 of the valve body 10 A pressure port 13 is offered at the position of body 20, and sets a diaphragm 14 in 13 upper cover of pressure port to seal.It is, gas or For the medium of person's liquid from the import 11 of valve body 10 toward during 12 flowing of outlet, medium can be in 10 pressure port 13 of valve body Diaphragm 14 generates one and upwards pressure, and diaphragm 14 is pushed to heave upwards.

In the present embodiment, the diaphragm 14 is specifically and is inlaid in the pressure port 13 of valve body 10, and shell 20 is used in combination to carry out It is fixed, that is, the diaphragm 14 is provided at the position between valve body 10 and shell 20.

It is appreciated that the push rod 30 is provided in the side that the diaphragm 14 deviates from pressure port 13, opened upwards with fine motion Close and 40 be attached, with by diaphragm 14 after by the pressure of medium in valve body 10 upward driving push rod 30 realize to microswitch 40 keying control, and then realize plastic pressure switch when in use, reality is come to the pressure of diaphragm 14 with medium in valve body 10 Now the keying of microswitch 30 is controlled.

Further, the push rod 30 is provided with lower pillar 31 in the side towards diaphragm 14, is matched with being abutted with diaphragm 14 It closes, a jacking block 50 is specifically arranged in the present embodiment between 30 times pillars of push rod 31 and diaphragm 14 so that diaphragm 14 is by valve body 10 The pressure effect of medium, which raises up, can be achieved to drive up 30 times pillars of push rod, 31 position, and then realize the push rod 30 drivings to microswitch 40 upwards.

In the present embodiment, the spring retainer regulating mechanism is provided in the side of push rod 30, and by the one of push rod 30 The specific elastic spacing in side is fixed on the housing 20.So that push rod 30 is by the upward driving of diaphragm 14, can driving push rod 3O go the long way round The side to interact with elastic spacing regulating mechanism from the push rod 30 is rotated, and is realized when push rod 30 works and is utilized with this The principle of lever drives microswitch 40, and push rod 30 drives the pressure that microswitch 40 opens and closes because of spring retainer regulating mechanism Flexible adjustment presence so that the pressure switch can be used in a variety of different pressures.

Specifically, the spring retainer regulating mechanism includes spring 61, spring pressuring plate 62 and adjusting knob 63, wherein the bullet The side of spring 61 is resisted against on push rod 30, and the other side is contacted with spring pressuring plate 62, and the adjusting knob 63 then compresses downwards On a side end face of the spring pressuring plate 62 away from spring 61, the specific adjusting knob 63 can be threadably arranged in shell On 20.So that the spring retainer regulating mechanism is when in use, can downwards be made come adjustment spring 61 by screwing adjusting knob 63 The elastic force on push rod 30 is used, push rod 30 is driven up come required when controlling the keying of microswitch 40 to limit diaphragm 14 with this The pressure wanted, and then realize and use in the case of the pressure switch different pressures.

Further, pillar 32 is provided on the push rod 30, the spring 61 is specifically to be socketed in the upper of push rod 30 On pillar 32, and contacted with push rod 30.And the present embodiment specifically offers a circle in the periphery of the upper pillar 32 of push rod 30 Slot 33 has been convenient for assembly of the spring 61 on push rod 30 for accommodating spring 61 with this.

To sum up, plastic pressure construction of switch provided by the utility model is simple, can be by valve in-vivo medium to valve body pressure Pressure caused by power mouth upper diaphragm controls the keying of microswitch to push push rod to realize, the structure setting of diaphragm, every The pollution of medium absolutely on valve body, and push microswitch to work using the principle of lever；Meanwhile it being adjusted by spring retainer The structure setting of mechanism so that the pressure switch is suitable for using under a variety of pressure conditions, and then the use for meeting people needs It asks.

Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, it is all considered to be the range of this specification record.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (9)

1. a kind of plastic pressure switch, it is characterised in that：Including valve body, shell, microswitch and spring retainer regulating mechanism； Import, outlet and the pressure port between the import and the outlet are provided on the valve body, in the pressure port It is covered with the diaphragm for sealing the pressure port；The diaphragm is being provided with a push rod away from the side of pressure port, the push rod to It is upper to be connect with microswitch, realize that the keying to microswitch controls to drive up push rod by diaphragm；The fine motion is opened In in the shell, the side spring retainer regulating mechanism limit of the push rod is fixed on shell off-position.

2. plastic pressure switch according to claim 1, it is characterised in that：The push rod is arranged in shell, and described Push rod is provided with lower pillar in the side towards diaphragm, to be contacted with diaphragm.

3. plastic pressure switchs according to claim 2, it is characterised in that：It is arranged between the lower pillar and diaphragm of the push rod There is a jacking block.

4. plastic pressure switch according to claim 1, it is characterised in that：The diaphragm is inlaid in the pressure port of valve body On, it is used in combination shell to be fixed.

5. plastic pressure switch according to claim 1, it is characterised in that：The spring retainer regulating mechanism includes bullet Spring, spring pressuring plate and adjusting knob, wherein the side of the spring is resisted against on push rod, the other side is contacted with spring pressuring plate, The adjusting knob is pressed on downwards spring pressuring plate on a side end face of spring.

6. plastic pressure switch according to claim 5, it is characterised in that：The adjusting knob is set threadably It sets on shell.

7. plastic pressure switch according to claim 5, it is characterised in that：Pillar is provided on the push rod, it is described Spring is socketed on the upper pillar of push rod, and is contacted with push rod.

8. plastic pressure switch according to claim 7, it is characterised in that：The push rod is offered in the periphery of upper pillar One ring recess, to accommodate spring.

9. plastic pressure switch according to claim 1, it is characterised in that：The valve body and shell are prepared by plastic material It forms.