CN206388644U - Novel differential pressure is switched - Google Patents
Novel differential pressure is switched Download PDFInfo
- Publication number
- CN206388644U CN206388644U CN201621450243.6U CN201621450243U CN206388644U CN 206388644 U CN206388644 U CN 206388644U CN 201621450243 U CN201621450243 U CN 201621450243U CN 206388644 U CN206388644 U CN 206388644U
- Authority
- CN
- China
- Prior art keywords
- differential pressure
- hole
- chute
- switch base
- frizzen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
Novel differential pressure is switched.It is related to switch element field.Propose high a kind of delicate structure, stability, service life length and the good novel differential pressure switch of operating accuracy.Including flow tube, switch base, movable contact spring, fixed touching plate, frizzen and differential pressure diaphragm, the switch base is fixedly connected on flow tube, and the switch base is in hollow form and towards offering chute on the end face of flow tube；Provided with being offered on pressure limiting hole and the side wall of flow tube with crossing triggering hole and the reset hole that chute is connected in the middle part of the flow tube, the triggering hole and reset hole set up separately in the both sides in pressure limiting hole；The differential pressure diaphragm was fixedly connected at the notch of chute and flow passage and work department including being connected as a single entity.The characteristics of the utility model has high stability, service life length and good operating accuracy on the whole.
Description
Technical field
The utility model is related to switch element field, more particularly to the wherein improvement of differential pressure switch.
Background technology
Traditional differential pressure switch is made up of two bellows chambers, by the deformation of wherein diaphragm finally to trigger the micro- of the top
Dynamic switch so that electric signal output；Wherein, it is representative as a entitled in what is announced on June 20th, 2012 such as State Bureau
Shown in " micro-pressure differential pressure switch ", the Chinese utility model patent of Application No. " 201120356399.9 ".However, people are in reality
Border is found that problems with after：First, because diaphragm therein is generally made using rubber, therefore often because of ageing of rubber
And the phenomenon of the unstable even leak of build-up of pressure；2nd, because it is triggered using microswitch, therefore also inevitable band
The defects such as complicated, assembly difficulty is big, manufacturing cost is high and error is big are carried out.
The content of the invention
The utility model is directed to problem above, it is proposed that a kind of delicate structure, stability height, service life length and work essence
The novel differential pressure switch spent.
The technical solution of the utility model is：Including flow tube, switch base, movable contact spring, fixed touching plate, frizzen and differential pressure film
Piece, the switch base is fixedly connected on flow tube, and the switch base is in hollow form and towards offering on the end face of flow tube
Cross chute；It is provided with pressure limiting hole and the side wall of flow tube and is offered with crossing the triggering hole that chute is connected in the middle part of the flow tube
And reset hole, the triggering hole and reset hole set up separately in the both sides in pressure limiting hole；
The differential pressure diaphragm was fixedly connected at the notch of chute and flow passage and work department including being connected as a single entity,
The flow passage is located at reset hole and crosses between chute and offer the through hole connected with reset hole, the work in the middle part of flow passage
Make portion be located at triggering hole and cross chute between and work department in the middle part of be in arc surfaced；
One end of the fixed touching plate is stretched in switch base, and one end of the movable contact spring stretches in switch base and stretched into
To fixed touching plate towards the side for crossing chute, the frizzen wear the bottom land for crossing chute and stretch in switch base with it is dynamic
It is fixedly linked in the middle part of contact, the work department that the one end of the frizzen away from movable contact spring is located at differential pressure diaphragm dorsad triggers hole
Side.
The movable contact spring stretch into switch base one section is elastic contact blade, and one end of the frizzen is fixedly connected on elasticity
The middle part of contact, the end of the elastic contact blade is provided with movable contact, and one end that the fixed touching plate is stretched into switch base is provided with fixed
Contact, the movable contact and fixed contact are oppositely arranged.
The bottom land for crossing chute is offered in the seal groove concentric with the work department of differential pressure diaphragm, the frizzen
Portion worn and sealing shroud is arranged with the bottom land of the seal groove, the outer wall of the frizzen, and the sealing shroud swelling is arranged on
Between seal groove and frizzen.
Internal thread is offered on the inwall of the sealing shroud.
The triggering hole is towards offering heavy platform at the aperture of switch base.
The differential pressure diaphragm is made of metal.
During utility model works, upward " kick " the effectively upward jack-up passively produced by the work department of differential pressure diaphragm
Frizzen so that movable contact spring is up to be in contact with fixed touching plate, sends electric signal；And pass through back pressure and the restoring force of movable contact spring itself
It is engaged so that " kick " resets the work department of differential pressure diaphragm downwards.The utility model can carry out sensitive, essence by differential pressure diaphragm
True control, and can under small hydraulic pressure environment normal work, with it is applied widely the characteristics of；And wherein differential pressure diaphragm is by metal
Be made, thus with service life length, stability is good the characteristics of.The utility model has stability height, uses the longevity on the whole
The characteristics of life length and good operating accuracy.
Brief description of the drawings
Fig. 1 is the structural representation of this case,
Fig. 2 is Fig. 1 top view,
Fig. 3 be Fig. 2 A-A to sectional view,
Fig. 4 is Fig. 1 stereogram,
Fig. 5 is the structural representation of differential pressure diaphragm in this case,
Fig. 6 is Fig. 5 stereogram,
Fig. 7 is the working state schematic representation one of this case,
Fig. 8 is the working state schematic representation two of this case；
1 is flow tube in figure, and 11 be pressure limiting hole, and 12 be triggering hole, and 13 be reset hole, and 2 be switch base, and 20 be chute, 3
It is movable contact spring, 31 be elastic contact blade, and 32 be movable contact, and 4 be fixed touching plate, and 41 be fixed contact, and 5 be frizzen, and 50 be sealing shroud, 6
It is differential pressure diaphragm, 61 be flow passage, and 62 be work department.
Embodiment
The utility model as shown in figures 1-8, including flow tube 1, switch base 2, movable contact spring 3, fixed touching plate 4, frizzen 5 and poor
Pressuring film plate 6, the switch base 2 is fixedly connected on flow tube 1 by rivet, and in hollow form, (switch base includes the switch base 2
The pedestal and top cover of open top, push rod are removably connected by four posts with pedestal) and towards on the end face of flow tube 1
Offered chute 20；The middle part of flow tube 1, which is provided with pressure limiting hole 11 and the side wall of flow tube 1, to be offered with crossing chute 20
The triggering hole 12 being connected and reset hole 13, the triggering hole 12 and reset hole 13 set up separately in the both sides in pressure limiting hole 11；
The differential pressure diaphragm 6 was fixedly connected at the notch of chute 20 and including the flow passage 61 being connected as a single entity and work
Make portion 62, the flow passage 61 is located at reset hole 13 and crosses between chute 20 and offered and reset hole 13 in the middle part of flow passage 61
The through hole of connection, the work department 62 is located at triggering hole 12 and crossed between chute 20 and the middle part of work department 62 is in arc surfaced；
One end of the fixed touching plate 4 is stretched in switch base 2, one end of the movable contact spring 3 stretch in switch base 2 and
Fixed touching plate 4 is stretched to towards the side for crossing chute 20, the frizzen 5 wears the bottom land for crossing chute 20 and stretched to out
Close the middle part in seat 2 with movable contact spring 3 to be fixedly linked, the described one end of frizzen 5 away from movable contact spring 3 is located at the work of differential pressure diaphragm 6
Make the side that portion 62 dorsad triggers hole 12.Working condition of the present utility model as Figure 7-8, will all the time during current proper flow
By pressure limiting hole, once hydraulic pressure is excessive, then it will take the lead in entering triggering hole and carry out pressure release, then will be when hydraulic pressure exceedes setting value
Sufficiently large pressure is put aside in triggering hole promotes the middle part of the work department of differential pressure diaphragm to produce upward " kick ", so as to push up upwards
Frizzen is played, it is final to cause movable contact spring is up to be in contact with fixed touching plate, send electric signal；Hereafter, being closed water by equipment is influenceed, current
Back pressure will be reversely produced after being obstructed, and takes the lead in being entered in chute by reset hole, and coordinates the restoring force of movable contact spring itself, will be forced
The middle part of the work department of differential pressure diaphragm produces downward " kick ", so that differential pressure diaphragm and frizzen are reset to initial shape
State.
The movable contact spring 3 stretch into switch base one section is elastic contact blade 31, and one end of the frizzen 5 is fixedly connected on
The middle part of elastic contact blade 31, the end of the elastic contact blade 31 is provided with movable contact 32, and the fixed touching plate 4 is stretched into switch base 2
One end be provided with fixed contact 41, the movable contact 32 and fixed contact 41 are oppositely arranged.So, it is effectively ensured by elastic contact blade
When differential pressure diaphragm resets, movable contact and fixed contact can be efficiently separated, and frizzen is resetted.
The bottom land for crossing chute offers the seal groove concentric with the work department of differential pressure diaphragm 6, the frizzen 5
Middle part wears and sealing shroud 50 is arranged with the bottom land of the seal groove, the outer wall of the frizzen 5, the swelling of sealing shroud 50
It is arranged between seal groove and frizzen 5.So as to the sealing effectively between lifting frizzen and seal groove, that is, it is effectively ensured
The stability and equipment overall use reliability and service life of equipment operation.
Internal thread is offered on the inwall of the sealing shroud 50.So, it may be such that the friction between sealing shroud and frizzen
Power is less than the frictional force between sealing shroud and seal groove, so that frizzen smoothly can do relative motion with sealing shroud, enters
And while equipment operational reliability is ensured, be also always ensured that inside switch base and excessively efficient sealed between chute.
The triggering hole 12 is towards offering heavy platform at the aperture of switch base 2.So as to which the work department to pressure difference diaphragm is reserved
Motion space, it is to avoid movement interference.
The differential pressure diaphragm 6 is made of metal.So as to service life length, stability is good the characteristics of.
Claims (6)
1. novel differential pressure is switched, it is characterised in that including flow tube, switch base, movable contact spring, fixed touching plate, frizzen and differential pressure film
Piece, the switch base is fixedly connected on flow tube, and the switch base is in hollow form and towards offering on the end face of flow tube
Cross chute；It is provided with pressure limiting hole and the side wall of flow tube and is offered with crossing the triggering hole that chute is connected in the middle part of the flow tube
And reset hole, the triggering hole and reset hole set up separately in the both sides in pressure limiting hole；
The differential pressure diaphragm was fixedly connected at the notch of chute and flow passage and work department including being connected as a single entity, described
Flow passage is located at reset hole and crosses between chute and offer the through hole connected with reset hole, the work department in the middle part of flow passage
It is in arc surfaced between triggering hole and excessively chute and in the middle part of work department；
One end of the fixed touching plate is stretched in switch base, and one end of the movable contact spring, which stretches in switch base and stretched to, determines
Contact is towards the side for crossing chute, and the frizzen wears the bottom land for crossing chute and stretched in switch base and movable contact spring
Middle part be fixedly linked, the one end of the frizzen away from movable contact spring be located at differential pressure diaphragm work department dorsad trigger the one of hole
Side.
2. novel differential pressure according to claim 1 switch, it is characterised in that stretch into switch base one section of the movable contact spring
For elastic contact blade, one end of the frizzen is fixedly connected on the middle part of elastic contact blade, and the end of the elastic contact blade is provided with
Movable contact, one end that the fixed touching plate is stretched into switch base is provided with fixed contact, and the movable contact and fixed contact are oppositely arranged.
3. novel differential pressure switch according to claim 1, it is characterised in that the bottom land for crossing chute is offered and differential pressure
The bottom land of the seal groove is worn in the middle part of the concentric seal groove of the work department of diaphragm, the frizzen, the frizzen
It is arranged with sealing shroud on outer wall, the sealing shroud swelling is arranged between seal groove and frizzen.
4. novel differential pressure switch according to claim 3, it is characterised in that interior spiral shell is offered on the inwall of the sealing shroud
Line.
5. novel differential pressure according to claim 1 switch, it is characterised in that the triggering hole is towards at the aperture of switch base
Offer heavy platform.
6. novel differential pressure switch according to claim 1, it is characterised in that the differential pressure diaphragm is made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621450243.6U CN206388644U (en) | 2016-12-27 | 2016-12-27 | Novel differential pressure is switched |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621450243.6U CN206388644U (en) | 2016-12-27 | 2016-12-27 | Novel differential pressure is switched |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206388644U true CN206388644U (en) | 2017-08-08 |
Family
ID=59490440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621450243.6U Withdrawn - After Issue CN206388644U (en) | 2016-12-27 | 2016-12-27 | Novel differential pressure is switched |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206388644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504941A (en) * | 2016-12-27 | 2017-03-15 | 中山市博安泰电器科技有限公司 | A kind of novel differential pressure switch |
-
2016
- 2016-12-27 CN CN201621450243.6U patent/CN206388644U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504941A (en) * | 2016-12-27 | 2017-03-15 | 中山市博安泰电器科技有限公司 | A kind of novel differential pressure switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170808 Effective date of abandoning: 20181009 |