CN203869802U - Pressure sensing mechanism of machine oil pressure sensor - Google Patents
Pressure sensing mechanism of machine oil pressure sensor Download PDFInfo
- Publication number
- CN203869802U CN203869802U CN201420241791.2U CN201420241791U CN203869802U CN 203869802 U CN203869802 U CN 203869802U CN 201420241791 U CN201420241791 U CN 201420241791U CN 203869802 U CN203869802 U CN 203869802U
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- sense film
- base
- upper cover
- towards
- oil pressure
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Abstract
The utility model relates to a pressure sensing mechanism of a machine oil pressure sensor. The pressure sensing mechanism comprises a pressure cavity. The pressure cavity is internally provided with a sensing film and a sensing unit which are linked to each other, the sensing film is transversely arranged in the pressure cavity, the sensing unit comprises a sensing support fixed to the pressure cavity, the sensing support is horizontally provided with and is hinged to a hinge rod capable of automatic returning, the circumferential surface of the hinge rod is provided with a swing rack which synchronously rotates, one end, which is oriented towards the sensing film, of the swing rack is provided with a cooperation block which is linked to the sensing film and drives the swing rack to rotate, the other end, which is oriented towards the sensing film, of the swing rack is provided with a rheostat block attached to a rheostat, and the end portion, which is away from the swing rack, of the rheostat block is provided with two elastic electric connection sheets which are arranged in the form of a V. By adopting such a scheme, the pressure sensing mechanism of the machine oil pressure sensor ahs the advantages of flexible sensing and stable movement.
Description
Technical field
The utility model relates to automobile equipment field, specifically relates to a kind of engine oil pressure pickup.
Background technology
The engine oil pressure of motor car engine is an important parameter of its running, the guarantee to engine stable operation while monitoring accurately in real time its parameter variation.Common engine oil pressure pickup includes by pressure sensitive mechanism and rheostat and forms at present, by oil pressure, promote the slippage on rheostat of the in-house sensing unit of pressure sensitive, change its resistance value, thereby realize the datumization of oil pressure, pressure sensitive mechanism comprises the pressure chamber with Lubricant of Automobile Engine chamber UNICOM, the transversal sense film that is provided with in pressure chamber, on sense film, being provided with can be along the sensing unit of pressure chamber axial slip, sensing unit one end and sense film are fixedly synchronized with the movement, the other end and the laminating of resistance induction mechanism change its resistance value, this induction mode is higher to the installation requirement precision of engine oil pressure pickup, not only be the sealing of sensing unit and sense film, and the skew that sense film motion produces also can change to the laminating situation of sensing unit and resistance induction mechanism.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of pressure sensitive mechanism that responds to the engine oil pressure pickup of sensitive and motion stabilization.
For achieving the above object, the utility model provides following technical scheme: comprise pressure chamber, in described pressure chamber, be provided with the sense film and the sensing unit that are connected, described sense film is transversal to be arranged in pressure chamber, it is characterized in that: described sensing unit comprises the induction support fixing with pressure chamber, on described induction support level and hinged be provided with can self-return hinge bar, on described hinge bar side face, be provided with the swing span of synchronous rotation, described swing span is provided with the coordinating block rotating with sense film interlock and drive swing span towards one end of sense film, the other end towards sense film is provided with the variable resistance piece of fitting with rheostat, described variable resistance piece is provided with flexible electric connecting sheet away from the end of swing span, described electric connecting sheet quantity is two and V-shaped arranging.
By adopting technique scheme, coordinate rheostatic sensing unit to make horizontal sliding into axial slip, the impact of the skew that the motion of minimizing sense film produces on resistance variations, the swing span that coordinating block arranges on rotating hinge extension bar under the promotion of sense film, the micro-deviation producing when reducing hinged rotate, flexible electric connecting sheet is set on variable resistance piece, can be flexible according to actual range, and electric connecting sheet arranges two and V-shaped arranging, maximum possible guarantees that micro-skew can not change with rheostatic electrical connection and coordinates.
The utility model is further set to: the position annular that described pressure chamber inner peripheral surface is corresponding with sense film is provided with sense film installation cavity, in described sense film installation cavity, be provided with the fixedly grommet type seals of sense film of extruding, the outer peripheral face of described grommet type seals and sense film installation cavity inner peripheral surface offset and join and width is less than the radial depth of sense film installation cavity.
By adopting technique scheme, the stable installation that sense film installation cavity guarantees sense film is set, by grommet type seals, fill sense film installation cavity and seal fixing to sense film time, the radial depth that width is less than sense film installation cavity guarantees that it can not hinder the induction range of sense film.
The utility model is further set to: described pressure chamber is comprised of upper cover and base, described upper cover and base are coaxially arranged with the passage that forms pressure chamber, described base is provided with towards the end face surrounding of upper cover the shirt rim that multistage bending arranges, described upper cover is provided with the first hook-shaped fixture block towards the end face surrounding of base, and the shirt rim end of described base is to be horizontally disposed with and to be stuck in and forms sense film installation cavity in the first hook-shaped fixture block.
By adopting technique scheme, upper cover and the base of split setting are convenient to dismounting, and shirt rim and the first hook-shaped fixture block its both can be stablized when coordinating without additionally slotting as sense film installation cavity, rationally utilize structure.
The utility model is further set to: the passage in described base comprises that the portion that enters, gathering portion and the connection that set gradually enter the drainage portion of portion and gathering portion, the described portion of entering is arranged at base towards the other end of upper cover, the diameter of the described portion that enters is less than gathering portion diameter, and the inner peripheral surface that the passage in described base is positioned at drainage portion is the inclined-plane launching gradually towards gathering portion.
By adopting technique scheme, enter portion's limited flow minimizing machine oil and pour in the impact to sense film, due to oily characteristic, machine oil can be climbed and move along the inclined-plane of drainage portion, come together in gathering portion and be finally full of pipeline, greatly extended the serviceable life of whole device.
The utility model is further set to: between described upper cover and sense film, be installed with the back-moving spring that Ambience is answered support, the position that described sense film is corresponding with back-moving spring is provided with spring base, described spring base is arranged between coordinating block and sense film, described spring base cross section is concave shape setting, and the turning point of described concave shape is provided with the reserved chamber of shrinking for sense film.
By adopting technique scheme, spring base coordinates the setting of back-moving spring to make the surface of contact of coordinating block more level and smooth, improve its sensitivity and stability, spring fully struts deformation that sense film makes sense film and is subject to its restriction and is solid form and promotes, and the effect in reserved chamber is it's the long-term excessive influence of crust deformation of ambassador's sense film serviceable life to avoid to past spring pressure.
The utility model is further set to: on described hinge bar, be arranged with the torsion spring for return, swing span is fixed in described torsion spring one end, and the other end is positioned on induction support and is positioned at the baffle plate arranging in its radial trajectories.
By adopting technique scheme, baffle plate is as the stiff end of torsion spring in restriction swing span slewing area, and structure is optimized more.
The utility model is further set to: the described relative upper cover of induction support has block board away from the position of the end of base, on described upper cover end face, be provided with for fixing the second hook-shaped fixture block of block board, on described block board, be symmetrically arranged with two mounting holes, described induction support is positioned at hinge bar two ends and is respectively arranged with articulated slab, and described articulated slab is provided with through the mounting blocks of mounting hole and mounting blocks end towards the end of block board be the bending setting of being fixed on block board.
By adopting technique scheme, the induction support that split arranges, make articulated slab and block board when needing repairing, can be convenient to dismounting, through the mounting blocks bending of mounting hole in block board, the fixing both and can stablize and be installed in pressure chamber of the spacing and bending by articulated slab end face.
The utility model is further set to: described coordinating block is towards the curved setting in the end of spring base.
By adopting technique scheme, coordinating block arc arranges, and multi-angle coordinates, and increases its sensitivity and hunting range.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the explosive view of sensing unit in the utility model embodiment.
Embodiment
As shown in Fig. 1-Fig. 2, the utility model discloses a kind of pressure sensitive mechanism of engine oil pressure pickup, comprise pressure chamber 1, in pressure chamber 1, be provided with the sense film 2 and the sensing unit 3 that are connected, sense film 2 is transversal to be arranged in pressure chamber 1, sensing unit 3 comprises the induction support 31 fixing with pressure chamber 1, on induction support 31 level and hinged be provided with can self-return hinge bar 32, on hinge bar 32 side faces, be provided with the swing span 33 of synchronous rotation, swing span 33 is provided with the coordinating block 331 rotating with sense film 2 interlocks and drive swing span 33 towards one end of sense film 2, the other end towards sense film 2 is provided with the variable resistance piece 332 of fitting with rheostat, variable resistance piece 332 is provided with flexible electric connecting sheet 3321 away from the end of swing span 33, electric connecting sheet 3321 quantity are two and V-shaped arranging, coordinate rheostatic sensing unit 3 to make horizontal sliding into axial slip, the impact of the skew that 2 motions of minimizing sense film produce on resistance variations, the swing span 33 that coordinating block 331 arranges on rotating hinge extension bar 32 under the promotion of sense film 2, the micro-deviation producing when reducing hinged rotate, flexible electric connecting sheet 3321 is set on variable resistance piece 332, can be flexible according to actual range, and electric connecting sheet 3321 arranges two and V-shaped arranging, maximum possible guarantees that micro-skew can not change with rheostatic electrical connection and coordinates.
The position annular that pressure chamber 1 inner peripheral surface is corresponding with sense film 2 is provided with sense film installation cavity 11, in sense film installation cavity 11, be provided with the fixedly grommet type seals 111 of sense film 2 of extruding, the outer peripheral face of grommet type seals 111 and sense film installation cavity 11 inner peripheral surfaces offset and join and width is less than the radial depth of sense film installation cavity 11, the stable installation that sense film installation cavity 11 guarantees sense film 2 is set, by grommet type seals 111, filling sense film installation cavity 11 seals fixing to sense film time, the radial depth that width is less than sense film installation cavity 11 guarantees that it can not hinder the induction range of sense film 2.
Pressure chamber 1 is comprised of upper cover 12 and base 13, upper cover 12 and base 13 are coaxially arranged with the passage 14 that forms pressure chamber 1, base 13 is provided with towards the end face surrounding of upper cover 12 shirt rim 131 that multistage bending arranges, upper cover 12 is provided with the first hook-shaped fixture block 121 towards the end face surrounding of base 13, shirt rim 131 ends of base 13 are and are horizontally disposed with and are stuck in the interior formation sense film of the first hook-shaped fixture block 121 installation cavity 11, upper cover 12 and the base 13 of split setting are convenient to dismounting, shirt rim 131 and the first hook-shaped fixture block 121 its both can be stablized when coordinating without additionally slotting as sense film installation cavity, rationally utilize structure.
Passage 14 in base 13 comprises the portion that enters 141 setting gradually, gathering portion 142 and connection enter the drainage portion 143 of portion 141 and gathering portion 142, enter portion 141 and be arranged at base 13 towards the other end of upper cover 12, the diameter that enters portion 141 is less than gathering portion 142 diameters, the inner peripheral surface that passage 14 in base 13 is positioned at drainage portion 143 is the inclined-plane launching gradually towards gathering portion 142, enter portion's 141 limited flows minimizing machine oil and pour in the impact to sense film 2, due to oily characteristic, machine oil can be climbed and move along the inclined-plane of drainage portion 143, come together in gathering portion 142 and be finally full of pipeline 14, greatly extended the serviceable life of whole device.
Between upper cover 12 and sense film 2, be installed with Ambience and answer the back-moving spring 34 of support 31, the position that sense film 2 is corresponding with back-moving spring 34 is provided with spring base 35, spring base 35 is arranged between coordinating block 331 and sense film 2, spring base 35 cross sections are concave shape setting, the turning point of concave shape is provided with the reserved chamber 351 of shrinking for sense film 2, spring base 35 coordinates the setting of back-moving spring 34 to make the surface of contact of coordinating block 331 more level and smooth, improve its sensitivity and stability, spring fully struts deformation that sense film 2 makes sense film 2 and is subject to its restriction and is solid form and promotes, the effect in reserved chamber 351 is it's the long-term excessive influence of crust deformation of ambassador's sense film serviceable life to avoid to past spring pressure, spring base 35 cross sections are concave shape and are convenient to spring shaft to contraposition, be difficult for skew.
On hinge bar 32, be arranged with the torsion spring 321 for return, swing span 33 is fixed in torsion spring 321 one end, the other end is positioned on induction support 31 and is positioned at the baffle plate 311 arranging in its radial trajectories, baffle plate 311 is as the stiff end of torsion spring 321 in restriction swing span 33 slewing areas, and structure is optimized more.
The relative upper cover 12 of induction support 31 has block board 36 away from the position of the end of base 13, on upper cover 12 end faces, be provided with for fixing the second hook-shaped fixture block 122 of block board 36, on block board 36, be symmetrically arranged with two mounting holes 361, induction support 31 is positioned at hinge bar 32 two ends and is respectively arranged with articulated slab 37, articulated slab 37 is provided with through the mounting blocks 371 of mounting hole 361 and mounting blocks 371 ends towards the end of block board 36 be the bending setting of being fixed on block board 36, the induction support 31 that split arranges, make articulated slab 37 and block board 36 when needing repairing, can be convenient to dismounting, pass mounting blocks 371 bendings of mounting hole 361 in block board, the fixing both and can stablize and be installed in pressure chamber 1 of spacing and bending by articulated slab 37 end faces.
Coordinating block 331 is towards the curved setting in the end of spring base 35, coordinating block 331 arc settings, and multi-angle coordinates, and increases its sensitivity and hunting range.
Claims (8)
1. the pressure sensitive mechanism of an engine oil pressure pickup, comprise pressure chamber, in described pressure chamber, be provided with the sense film and the sensing unit that are connected, described sense film is transversal to be arranged in pressure chamber, it is characterized in that: described sensing unit comprises the induction support fixing with pressure chamber, on described induction support level and hinged be provided with can self-return hinge bar, on described hinge bar side face, be provided with the swing span of synchronous rotation, described swing span is provided with the coordinating block rotating with sense film interlock and drive swing span towards one end of sense film, the other end towards sense film is provided with the variable resistance piece of fitting with rheostat, described variable resistance piece is provided with flexible electric connecting sheet away from the end of swing span, described electric connecting sheet quantity is two and V-shaped arranging.
2. the pressure sensitive mechanism of engine oil pressure pickup according to claim 1, it is characterized in that: the position annular that described pressure chamber inner peripheral surface is corresponding with sense film is provided with sense film installation cavity, in described sense film installation cavity, be provided with the fixedly grommet type seals of sense film of extruding, the outer peripheral face of described grommet type seals and sense film installation cavity inner peripheral surface offset and join and width is less than the radial depth of sense film installation cavity.
3. the pressure sensitive mechanism of engine oil pressure pickup according to claim 2, it is characterized in that: described pressure chamber is comprised of upper cover and base, described upper cover and base are coaxially arranged with the passage that forms pressure chamber, described base is provided with towards the end face surrounding of upper cover the shirt rim that multistage bending arranges, described upper cover is provided with the first hook-shaped fixture block towards the end face surrounding of base, and the shirt rim end of described base is to be horizontally disposed with and to be stuck in and forms sense film installation cavity in the first hook-shaped fixture block.
4. the pressure sensitive mechanism of engine oil pressure pickup according to claim 3, it is characterized in that: the passage in described base comprises that the portion that enters, gathering portion and the connection that set gradually enter the drainage portion of portion and gathering portion, the described portion of entering is arranged at base towards the other end of upper cover, the diameter of the described portion that enters is less than gathering portion diameter, and the inner peripheral surface that the passage in described base is positioned at drainage portion is the inclined-plane launching gradually towards gathering portion.
5. the pressure sensitive mechanism of engine oil pressure pickup according to claim 4, it is characterized in that: between described upper cover and sense film, be installed with the back-moving spring that Ambience is answered support, the position that described sense film is corresponding with back-moving spring is provided with spring base, described spring base is arranged between coordinating block and sense film, described spring base cross section is concave shape setting, and the turning point of described concave shape is provided with the reserved chamber of shrinking for sense film.
6. the pressure sensitive mechanism of engine oil pressure pickup according to claim 5, it is characterized in that: on described hinge bar, be arranged with the torsion spring for return, swing span is fixed in described torsion spring one end, and the other end is positioned on induction support and is positioned at the baffle plate arranging in its radial trajectories.
7. the pressure sensitive mechanism of engine oil pressure pickup according to claim 6, it is characterized in that: the described relative upper cover of induction support has block board away from the position of the end of base, on described upper cover end face, be provided with for fixing the second hook-shaped fixture block of block board, on described block board, be symmetrically arranged with two mounting holes, described induction support is positioned at hinge bar two ends and is respectively arranged with articulated slab, and described articulated slab is provided with through the mounting blocks of mounting hole and mounting blocks end towards the end of block board be the bending setting of being fixed on block board.
8. the pressure sensitive mechanism of engine oil pressure pickup according to claim 7, is characterized in that: described coordinating block is towards the curved setting in the end of spring base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241791.2U CN203869802U (en) | 2014-05-12 | 2014-05-12 | Pressure sensing mechanism of machine oil pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241791.2U CN203869802U (en) | 2014-05-12 | 2014-05-12 | Pressure sensing mechanism of machine oil pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203869802U true CN203869802U (en) | 2014-10-08 |
Family
ID=51650742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241791.2U Expired - Fee Related CN203869802U (en) | 2014-05-12 | 2014-05-12 | Pressure sensing mechanism of machine oil pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203869802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014553A (en) * | 2017-06-07 | 2017-08-04 | 安徽海盛智能测控科技有限公司 | A kind of system of electronic oil pressure sensor |
-
2014
- 2014-05-12 CN CN201420241791.2U patent/CN203869802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014553A (en) * | 2017-06-07 | 2017-08-04 | 安徽海盛智能测控科技有限公司 | A kind of system of electronic oil pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20150512 |
|
| EXPY | Termination of patent right or utility model |