CN206885032U - Pressure alarm structure - Google Patents
Pressure alarm structure Download PDFInfo
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- CN206885032U CN206885032U CN201720458539.0U CN201720458539U CN206885032U CN 206885032 U CN206885032 U CN 206885032U CN 201720458539 U CN201720458539 U CN 201720458539U CN 206885032 U CN206885032 U CN 206885032U
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- pressure
- sealing gasket
- stud
- pressure chamber
- spring
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Abstract
The utility model discloses a kind of good airproof performance and simple in construction, the simple pressure alarm structure of technique, including body case of annunciator, the First pressure chamber that air pressure is critical air pressure and the second pressure chamber connected with vacuum tank are provided with the inner chamber of body case of annunciator, the stud being connected with wire harness, upper lid and stud integrated injection molding are fixedly connected with the upper lid of body case of annunciator.In such scheme, the formula of being formed in one in processing is connected upper lid with stud, is so eliminated the manufacturing procedure of installation pad cap and riveting cap, is saved the time, while improve the sealing between two parts.
Description
Technical field
It the utility model is related to mechanical safety valve technical field, and in particular to a kind of pressure alarm structure.
Background technology
Compared with traditional combustion engine automobile, electric automobile lacks the vacuum source needed for vacuum boosting braking system, needs to increase
System occurs for one Motorized vacuum with enough capacities.System occurs for Motorized vacuum can provide enough brakings for the car
Power-assisted, when each driver has braking maneuver, pressure time delay switch all can self-test, so as to judge whether electric vacuum pump should work
Make；If the vacuum in vacuum tank is less than -34kPa, vacuum booster can not provide effective vacuum servo, now pressure
Alarm will send signal, remind driver to pay attention to road speed.
Pressure alarm of the prior art, as shown in figure 1, stud 1 is fixedly connected with upper lid 2, the lower end of stud 1 is arranged
There is pad cap 4 and riveting cap 5 to realize being fixedly connected to stud 1 and upper lid 2, the air pressure of second pressure chamber 6 all the time with vavuum pump
Air pressure is equal, and when the elastic force of second pressure chamber 6 and spring 7 meets air pressure requirement, i.e., second pressure chamber 6 and spring 7 are to sealing
Pad 9 upwards pressure when being upwarded pressure less than or equal to First pressure chamber 3 to sealing gasket 9, and stud 1 separates with flat head rivet 8, this
Alarm device does not send alarm, when the elastic force of second pressure chamber 6 and spring 7 is unsatisfactory for air pressure requirement, i.e. the He of second pressure chamber 6
Spring 7 upwards pressure to sealing gasket 9 when being upwarded pressure more than First pressure chamber 3 to sealing gasket 9, in second pressure chamber 6
Pressure press against sealing gasket 9 and be raised up together with flat head rivet 8, and now stud 1 contacts with flat head rivet 8, and alarm sends alarm
Signal.But this structure member is more, cumbersome, and sealing is bad.
Utility model content
The utility model discloses a kind of good airproof performance and simple in construction, the simple pressure alarm structure of technique.
To achieve these goals, the technical solution adopted in the utility model is：A kind of pressure alarm structure, including report
Device shell is warned, extraneous connected First pressure chamber and the second pressure connected with vacuum tank are provided with the inner chamber of body case of annunciator
Chamber, the sealing gasket for separating two pressure chambers is provided between first and second pressure chamber, the intracavitary of First pressure chamber is provided with
Cover, the stud being connected with wire harness, upper lid and stud integrated injection molding are fixedly connected with upper lid.
In such scheme, it is upper lid with stud processing when the formula of being formed in one be connected, so eliminate install pad cap with
The manufacturing procedure of riveting cap, the time is saved, while improve the sealing between two parts.
Brief description of the drawings
Fig. 1 is the structural representation of pressure alarm in the prior art；
Fig. 2 is overall structure diagram of the present utility model；
Fig. 3 is Fig. 2 enlarged schematic partial view.
Embodiment
As shown in Figure 2 and Figure 3, a kind of pressure alarm structure, including body case of annunciator 10, the inner chamber of body case of annunciator 10
In be provided between extraneous connected First pressure chamber A and the second pressure chamber B, first and second pressure chamber A, B that are connected with vacuum tank
It is provided with the sealing gasket 30 for separating two pressure chambers, First pressure chamber A intracavitary is provided with lid 11, fixed on upper lid 11 to connect
It is connected to the stud 20 being connected with wire harness C, upper lid 11 and the integrated injection molding of stud 20.Upper lid 11 and stud 20 are in processing
Integrally connected, the manufacturing procedure of installation pad cap and riveting cap is so eliminated, saves the time, while improved between two parts
Sealing.
In order to improve the steadiness connected between stud 20 and upper lid 11, the connecting portion of stud 20 and upper lid 11 is provided with
Necking part, the shoulder hole that necking part opens up with the upper middle part of lid 11 form spacing connection, and the lower end of stud 20 is protruded out under lid 11
The outside of end face, the pressure differential between 30 upper and lower end face of sealing gasket drive sealing gasket 30 together with the tack set on sealing gasket 30
Rivet 51 moves up and down the action that is contacting and separating for the lower end for realizing flat head rivet 51 and stud 20.The setting of necking part avoids spiral shell
Displacement between post 20 and upper lid 11 on axial direction, ensure being reliably connected for the two.The lower end of stud 20 and tack riveting simultaneously
Nail 51 forms the contact of alarm, when the pressure differential between two pressure chambers meets design requirement, stud 20 and flat head rivet
51 separation, alarm does not send alarm signal, when the pressure differential between two pressure chambers is unsatisfactory for design requirement, pressure-driven
Flat head rivet 51 and sealing gasket 30 raise up and send alarm signal with the lower end in contact of stud 20, alarm.
Further, body case of annunciator 10 is that the linking of reducing pipeline section forms, and path pipeline section 12 is connected with intake interface, big footpath
The mouth of pipe of pipeline section 13 forms sealing with upper lid 11 and coordinated, and sealing gasket 30 is arranged at the inner chamber middle section position of large-diameter pipe section 13, sealing gasket
Cavity between 30 and the mouth of pipe of path pipeline section 12 forms second pressure chamber B.
Be provided with spring 40 in second pressure chamber B, one end of spring 40 and the lower surface of sealing gasket 30 against, the other end with
The nut 52 being fixedly installed at the mouth of pipe of path pipeline section 12 is connected, and second pressure chamber B pressure and spring 40 is jointly to sealing
Pad 30 upwards pressure.Second pressure chamber B air pressure is equal with the air pressure in vavuum pump all the time, when second pressure chamber B and spring
When 40 elastic force meets air pressure requirement, i.e. second pressure chamber B and spring 40 upward pressure less than or equal to first to sealing gasket 30
When pressure chamber A upwards pressure to sealing gasket 30, stud 20 separates with flat head rivet 52, does not send alarm now, when the second pressure
When the elastic force of power chamber B and spring 40 is unsatisfactory for air pressure requirement, i.e. second pressure chamber B and spring 40 upward pressure to sealing gasket 30
When being upwarded pressure less than or equal to First pressure chamber A to sealing gasket 30, the pressure in second pressure chamber B press against sealing gasket 30 together with
Flat head rivet 52 raises up, and now stud 20 contacts with flat head rivet 52, and alarm sends alarm signal.
The center of spring 40 is with the center superposition of path pipeline section 12 and perpendicular to the end face of sealing gasket 30, the epimere of spring 40
It is sheathed on the hypomere of flat head rivet 51 and forms spacing cooperation, the upper end of nut 52 is provided with projection, and the epimere of spring 40 is arranged
In on projection and forming spacing cooperation.So small pressure change can either cause spring 40 to be improved along its axial deformation
The sensitivity of alarm.
In order to protect alarm, the outer cup of body case of annunciator 10 is provided with sheath 60.
Claims (6)
1. a kind of pressure alarm structure, including body case of annunciator (10), the external world is provided with the inner chamber of body case of annunciator (10)
Connected First pressure chamber (A) and the second pressure chamber (B) connected with vacuum tank, it is provided between first and second pressure chamber (A, B)
The sealing gasket (30) that two pressure chambers are separated, the intracavitary of First pressure chamber (A) are provided with lid (11), fixed on upper lid (11)
It is connected with the stud (20) being connected with wire harness (C), it is characterised in that：Upper lid (11) and stud (20) integrated injection molding.
2. pressure alarm structure according to claim 1, it is characterised in that：Stud (20) and the connecting portion of upper lid (11)
Position is provided with necking part, and necking part forms spacing connection with the shoulder hole opened up in the middle part of upper lid (11), and the lower end of stud (20) is convex
Extend the outside of lid (11) lower surface, the pressure differential driving sealing gasket (30) between sealing gasket (30) upper and lower end face is together with close
The flat head rivet (51) set on packing (30) move up and down the contact of realizing flat head rivet (51) and the lower end of stud (20) and
Separating action.
3. pressure alarm structure according to claim 1, it is characterised in that：Body case of annunciator (10) is held in the mouth for reducing pipeline section
Connect and form, path pipeline section (12) is connected with intake interface, large-diameter pipe section (13) mouth of pipe is connected with upper lid (11), and sealing gasket (30) is set
Put at the middle section position of large-diameter pipe section (13) inner chamber, the cavity between sealing gasket (30) and path pipeline section (12) mouth of pipe forms second
Pressure chamber (B).
4. pressure alarm structure according to claim 3, it is characterised in that：Spring is provided with second pressure chamber (B)
(40), the lower surface of one end of spring (40) and sealing gasket (30) is set against fixing at, the other end and path pipeline section (12) mouth of pipe
The nut (52) put is connected, and the pressure and spring (40) of second pressure chamber (B) upward pressure to sealing gasket (30) jointly.
5. pressure alarm structure according to claim 4, it is characterised in that：The center of spring (40) and path pipeline section
(12) center superposition and it is sheathed on the hypomere of flat head rivet (51) perpendicular to the end face of sealing gasket (30), the epimere of spring (40)
And spacing cooperation is formed, the upper end of nut (52) is provided with projection, and the epimere of spring (40) is sheathed on projection and formed spacing
Coordinate.
6. pressure alarm structure according to claim 5, it is characterised in that：Body case of annunciator (10) outer cup is provided with shield
Cover (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720458539.0U CN206885032U (en) | 2017-04-27 | 2017-04-27 | Pressure alarm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720458539.0U CN206885032U (en) | 2017-04-27 | 2017-04-27 | Pressure alarm structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206885032U true CN206885032U (en) | 2018-01-16 |
Family
ID=61323566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720458539.0U Active CN206885032U (en) | 2017-04-27 | 2017-04-27 | Pressure alarm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206885032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107021088A (en) * | 2017-04-27 | 2017-08-08 | 合肥晟泰克汽车电子股份有限公司 | Pressure alarm structure |
| CN108722123A (en) * | 2018-06-05 | 2018-11-02 | 郑州源冉生物技术有限公司 | A kind of bioengineering exhaust gas processing device |
-
2017
- 2017-04-27 CN CN201720458539.0U patent/CN206885032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107021088A (en) * | 2017-04-27 | 2017-08-08 | 合肥晟泰克汽车电子股份有限公司 | Pressure alarm structure |
| CN108722123A (en) * | 2018-06-05 | 2018-11-02 | 郑州源冉生物技术有限公司 | A kind of bioengineering exhaust gas processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.27 Hezhang Road, Hefei Economic and Technological Development Zone, Anhui Province, 230000 Patentee after: HEFEI SOFTEC AUTO-ELECTRONIC CO.,LTD. Address before: 230601 No.27 Hezhang Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee before: HEFEI SOFTEC AUTO-ELECTRONIC Co.,Ltd. |
|
| CP03 | Change of name, title or address |