CN209216883U - A kind of high-pressure switch - Google Patents
A kind of high-pressure switch Download PDFInfo
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- CN209216883U CN209216883U CN201822071393.1U CN201822071393U CN209216883U CN 209216883 U CN209216883 U CN 209216883U CN 201822071393 U CN201822071393 U CN 201822071393U CN 209216883 U CN209216883 U CN 209216883U
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- shell
- microswitch
- mandril
- pressure switch
- combination
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Abstract
The utility model belongs to pressure-measuring instrument technical field, is related to a kind of high-pressure switch；The high-pressure switch it include connect mouth (1), plunger rod (2), O-ring (3), retaining ring (4), shell (5), gasket (6), pressing plate (7), mandril combination (8), microswitch component (9), check plate (10), top cover combination (11), screw (12).It includes mandril (13), spring (14) and top cap (15) that mandril, which combines (8), and spring (14) and top cap (15) are sequentially placed into mandril (13)；Microswitch component (9) includes microswitch supporting plate (16) and microswitch (17)；When connecing mouth (1) inner cavity by input part entrance by measuring pressure, plunger rod (2) generates corresponding displacement under the effect of the pressure, push mandril combination (8) mobile, to push microswitch (17), output switch switching signal, to achieve the purpose that monitor pressure；The utility model high-pressure switch have it is small in size, it is compact-sized, be particularly suitable in narrow hyperbaric environment.
Description
Technical field
The utility model belongs to pressure-measuring instrument technical field, and in particular to a kind of high-pressure switch.
Background technique
Pressure switch is widely used in each airborne equipment of aircraft, for providing pressure switch signal.Pressure switch is pressed
Two classes can be divided into according to working principle: the first kind is electronic type signalling means；Second class is mechanical signal device, and principle is to utilize packet
The deformation of the sensing elements such as end pipe and diaphragm pushes being switched on or switched off for microswitch or contact chip by transmission mechanism, thus
Output switching signal；Structure is complicated, precision is lower for mechanical signal device at present, needs to improve.
Summary of the invention
The purpose of this utility model is: a kind of high-pressure switch is provided, to solve current mechanical pressure switch structure
Technical problem complicated, precision is lower.
To solve this technical problem, the technical solution of the utility model is:
A kind of high-pressure switch, the pressure switch include connect mouth 1, plunger rod 2, O-ring 3, retaining ring 4, shell 5,
Gasket 6, pressing plate 7, mandril combination 8, microswitch component 9, check plate 10, top cover combination 11；
The O-ring 3, retaining ring 4 are sequentially loaded into the groove in plunger rod 2, and plunger rod 2 is fitted into the inner hole for connecing mouth 1；
Described one end for connecing mouth 1 is fitted into shell 5, and the other end is connect with pressure source, and middle-end is shoulder hole structure；
The mandril combines 8, pressing plate 7 and is sequentially placed into shell 5, has internal screw thread inside the shell 5；Described
Gasket 6 is between the boss and pressing plate 7 of mandril combination 8, the shift position for backstop plunger rod 2；
The microswitch component 9 is fixed in shell 5, and microswitch contact is combined 8 with mandril and contacted；
The check plate 10 is fixed in shell 5, and with 9 compression fit of microswitch component；
The top cover combination 11 is fixed on 5 end face of shell.
The mandril combination 8 includes mandril 13, spring 14 and top cap 15；
The mandril 13 is ladder circle column structure, and lower end has boss, and middle-end has blind hole, and spring 14 is mounted in blind hole
In, upper end has thin-walled boss structure, and top cap 15 is on this boss structure；Pass through agglomeration technique between mandril 13 and top cap 15
Fastening.
The microswitch component 9 includes microswitch supporting plate 16 and microswitch 17；
The microswitch supporting plate 16 is cylindrical structure, has external screw thread, and for connecting with shell 5, Intermediate Gray is useful
In the blind hole of installation microswitch 17.
The both ends for connecing mouth 1 have screw thread, are threadedly coupled with shell 5；
The pressing plate 7 is cylinder plate structure, has external screw thread, and intermediate with through-hole, is screwed with shell 5.
The check plate 10 has external screw thread, is screwed with shell 5.
The fixed form of the top cover combination 11 and 5 end face of shell is laser welding.
It is characterized by: mouth 1, shell 5, the pressing plate 7 of connecing is using stainless steel material.
The beneficial effects of the utility model are: the utility model high-pressure switch have it is small in size, it is compact-sized etc. excellent
Point is particularly suitable in narrow hyperbaric environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model high-pressure switch；
Fig. 2 is the structural schematic diagram of the utility model mandril combination；
Fig. 3 is the structural schematic diagram of the utility model microswitch component；
Fig. 4 is the scheme of installation of the utility model high-pressure switch；
In figure, 1- connect mouth, 2- plunger rod, 3-O type circle, 4- retaining ring, 5- shell, 6- gasket, 7- pressing plate, 8- mandril combination,
9- microswitch component, 10- check plate, the combination of 11- top cover, 12- screw, 13- mandril, 14- spring, 15- top cap, 16- fine motion
Switch support plate, 17- microswitch.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples:
Referring to Fig. 1, a kind of high-pressure switch comprising connect mouth 1, plunger rod 2, O-ring 3, retaining ring 4, shell 5, pad
Piece 6, pressing plate 7, mandril combination 8, microswitch component 9, check plate 10, top cover combine 11, screw 12.O-ring 3, retaining ring 4 are successively
It is fitted into the groove in plunger rod 2, is then fitted into plunger rod 2 in the inner hole for connecing mouth 1, connect one end of mouth 1 with screw thread, be packed into
In 5 one end of shell.Mandril combination 8, pressing plate 7 are sequentially placed into shell 5, and gasket 6 is used between mandril combination 8 and pressing plate 7
The shift position of backstop plunger rod 2.Microswitch component 9 is threaded into shell 5, until microswitch contact and mandril
Check plate 10, is then screwed into shell 5 by contact, compresses microswitch component 9, and top cover combination 11 is placed on 5 end face of shell, and
Carry out laser welding.
Referring to Fig. 2, showing the schematic diagram of mandril combination 8, including mandril 13, spring 14 and top cap 15, mandril 13 are adopted
It is ladder circle column structure with stainless steel material, lower end has boss, and for gasket 6 on boss, middle-end has blind hole, spring
14 in the blind hole, and upper end has thin-walled boss structure, and top cap 15 is tight by agglomeration technique between them on this boss
Gu.
Referring to Fig. 3, show the structural schematic diagram of the microswitch component 9, including microswitch supporting plate 16 and micro-
Dynamic switch 17, microswitch supporting plate 16 use No. 45 steel, are cylindrical structure, have external screw thread, for being connect with shell 5, in
Between then microswitch is sealed using 504 glues, makes its fastening for installing microswitch 17 with blind hole.
Working principle are as follows: when connecing 1 inner cavity of mouth by input part entrance by measuring pressure, effect of the plunger rod 2 in pressure
The lower corresponding displacement of generation, pushes mandril combination 8 mobile, so that microswitch 17 is pushed, output switch switching signal, thus
Achieve the purpose that monitor pressure.
Referring to Fig. 1, the mouth 1 that connects of the utility model is made of stainless steel 1Cr18Ni9Ti material, both ends have screw thread,
One end is used for cut-in pressure source, and having a size of NPT1/8, one end is connect with shell 5, and having a size of M12 × 1-6h, middle-end is stepped hole
Structure, for installing plunger rod 2, O-ring 3 and retaining ring 4.
Referring to Fig. 1, the plunger rod 2 of the utility model is made of stainless steel 1Cr18Ni9Ti material, it is cylindrical structure,
Centre has the groove of 4.3 × 3.8mm of Φ, is used for mounting O-shaped rings 3 and retaining ring 4.
Referring to Fig. 1,3 material of O-ring of the utility model uses nitrile rubber, model O-ring 4 × 1.8 is mounted on
In the groove of plunger rod
Referring to Fig. 1,4 material of retaining ring of the utility model uses polytetrafluoroethylene (PTFE), it is annular structure, and have and cut
Mouthful, and in installation, outer diameter is Φ 7mm, and internal diameter is Φ 4.3mm.
Referring to Fig. 1, the shell 5 of the utility model uses stainless steel 1Cr18Ni9Ti material, one end has internal screw thread, in
End is shoulder hole structure.Outer diameter is Φ 28.6mm, and internal screw thread is M24 × 1-6H, screw thread depth 28mm.
Referring to Fig. 1, the gasket 6 of the utility model is standard component, specification is GB/T97.1-10 × 2.
Referring to Fig. 1, the pressing plate 7 of the utility model uses stainless steel 1Cr18Ni9Ti material, cylinder plate structure is had
External screw thread M24 × 1-6h, and it is intermediate with through-hole, aperture is Φ 7mm, screw thread M3 had beside through-hole, is used for mounting screw 12,
Its role is to clam members 7.
Referring to Fig. 2, the mandril combination 8 of the utility model includes mandril 13, spring 14 and top cap 15, mandril is using stainless
Steel 1Cr18Ni9Ti material is ladder circle column structure, and lower end has boss, and diameter is Φ 15mm, and gasket 6 is mounted on boss,
Middle-end has blind hole, and aperture is Φ 8mm, and for spring 14 in blind hole, upper end has thin-walled boss structure, and top cap 15 is convex mounted in this
It is fastened on platform, between them by agglomeration technique.Spring 14 is process by superhigh intensity spring steel wire T9A, 14 form of spring
Using cylindroid helical-coil compression spring, end construction form is that both ends are enclosed and tightly polished.
Referring to Fig. 3, the microswitch component 9 of the utility model includes microswitch supporting plate 16 and microswitch 17, it is micro-
Dynamic switch support plate 16 uses No. 45 steel, is cylindrical structure, has external screw thread M24 × 1-6h, for being connect with shell, Intermediate Gray
There is blind hole, aperture is then Φ 21.2mm is sealed microswitch using 504 glues for installing microswitch, keeps it tight
Gu.Microswitch uses CHERRY DC1.
Referring to Fig. 1, the check plate 10 of the utility model uses aluminium alloy 2A12 material, annular structure has outer spiral shell
Line M24 × 1-6h, and it is intermediate with through-hole, aperture is Φ 18mm, has 2 through-hole Φ 1.5mm beside through-hole, is used for erector
Skill hole.
Referring to Fig. 1, the top cover combination 11 of the utility model includes top cover and cable, top cover is cylindrical structure, outer diameter
For Φ 28.6mm, with a thickness of 2mm.Cable uses the silver-plated light-duty flexible cable AFRPFQ-250-1 of shielding PFA sheath, and cable has 3
Root line is respectively welded on the welding column of microswitch.
It is illustrated in figure 4 the scheme of installation using the utility model, the method is as follows: the high-pressure of the utility model is opened
It closes and is screwed into the pipeline for needing to connect by monkey wrench, screw thread NPT1/8 connection is used between high-pressure switch and pipeline,
It ensure that the reliability of installation, it is big that adjustable monitoring pressure the distance between is combined with mandril by adjusting microswitch component
Small, precision can reach ± 0.5MPa.
Claims (8)
1. a kind of high-pressure switch, it is characterised in that: the pressure switch includes connecing mouth (1), plunger rod (2), O-ring
(3), retaining ring (4), shell (5), gasket (6), pressing plate (7), mandril combination (8), microswitch component (9), check plate (10), top
Lid combination (11)；
The O-ring (3), retaining ring (4) are sequentially loaded into the groove in plunger rod (2), and plunger rod (2) loading connects the interior of mouth (1)
Kong Zhong；Described one end for connecing mouth (1) is fitted into shell (5), and the other end is connect with pressure source, and middle-end is shoulder hole structure；
The mandril combination (8), pressing plate (7) are sequentially placed into shell (5), have internal screw thread inside the shell (5)；It is described
Gasket (6) is between the boss and pressing plate (7) of mandril combination (8)；
The microswitch component (9) is fixed in shell (5), and microswitch contact combines (8) contact with mandril；
The check plate (10) is fixed in shell (5), and with microswitch component (9) compression fit；
The top cover combination (11) is fixed on shell (5) end face.
2. pressure switch according to claim 1, it is characterised in that: the mandril combination (8) includes mandril (13), bullet
Spring (14) and top cap (15)；
The mandril (13) is ladder circle column structure, and lower end has boss, and middle-end has blind hole, and spring (14) is mounted in blind hole
In, upper end has thin-walled boss structure, and top cap (15) is on this boss structure；Pass through rolling between mandril (13) and top cap (15)
Skill of undertaking to perform work within a time limit and according to specifications fastening.
3. pressure switch according to claim 1, it is characterised in that: the microswitch component (9) includes microswitch
Supporting plate (16) and microswitch (17)；
The microswitch supporting plate (16) is cylindrical structure, has external screw thread, and for connecting with shell (5), Intermediate Gray is useful
In the blind hole of installation microswitch (17).
4. pressure switch according to claim 1, it is characterised in that: the both ends for connecing mouth (1) have screw thread, with shell
(5) it is threadedly coupled.
5. pressure switch according to claim 1, it is characterised in that: the pressing plate (7) is cylinder plate structure, with outer
Screw thread, and it is intermediate with through-hole, it is screwed with shell (5).
6. pressure switch according to claim 1, it is characterised in that: the check plate (10) has external screw thread, with shell
(5) it is screwed.
7. pressure switch according to claim 1, it is characterised in that: the top cover combination (11) and shell (5) end face
Fixed form is laser welding.
8. high-pressure switch according to claim 1 or 4 or 5, it is characterised in that: described to connect mouth (1), shell (5), pressure
Plate (7) uses stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822071393.1U CN209216883U (en) | 2018-12-11 | 2018-12-11 | A kind of high-pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822071393.1U CN209216883U (en) | 2018-12-11 | 2018-12-11 | A kind of high-pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209216883U true CN209216883U (en) | 2019-08-06 |
Family
ID=67463935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822071393.1U Active CN209216883U (en) | 2018-12-11 | 2018-12-11 | A kind of high-pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209216883U (en) |
-
2018
- 2018-12-11 CN CN201822071393.1U patent/CN209216883U/en active Active
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