CN205898353U - Pressure sensor - Google Patents
Pressure sensor Download PDFInfo
- Publication number
- CN205898353U CN205898353U CN201620879362.7U CN201620879362U CN205898353U CN 205898353 U CN205898353 U CN 205898353U CN 201620879362 U CN201620879362 U CN 201620879362U CN 205898353 U CN205898353 U CN 205898353U
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- magnet
- valve body
- pressure sensor
- installing hole
- diaphragm
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Abstract
The utility model provides a pressure sensor. The main problem that has the interior compression spring elasticity size of pressure sensor now and be difficult to the adjustment of solving. Its characterized in that: be equipped with adjusting bolt down in the valve body, the last passageway that supplies medium circulation that is equipped with of adjusting bolt, be equipped with regulating spring between adjusting bolt and the diaphragm. Its advantage lies in carrying out minute regulation through adjusting bolt and regulating spring, and the required precision of product when reducing the production and processing degree of difficulty, is guaranteed to adjustment compression spring elasticity size.
Description
Technical field
This utility model is related to a kind of sensor, specifically related to a kind of hydraulic pressure sensor.
Background technology
Hydraulic pressure sensor is more conventional a kind of pressure transducer in industrial practice, and it is dynamic that it is widely used in various industry
Change environment, Hydraulic and Hydro-Power Engineering, transportation building equipment, produce robot control system(RCS), aeronautical and space technology, marine technology, conveyance conduit
In region.
The operation principle of hydraulic pressure sensor is that the pressure of tested hydraulic pressure acts on diaphragm, and diaphragm produces proportional with hydraulic pressure
Micrometric displacement, so that the resistance of sensor is changed, and by this change change output one corresponding standard signal.
In order to ensure the induction precision of hydraulic pressure sensor it is necessary to guarantee compression spring elasticity size in hydraulic pressure sensor, but
It is that existing hydraulic pressure sensor is difficult to be adjusted it is necessary to ensure its precision when producing assembling after producing and assembling again
Require, high to production, matching requirements, difficulty of processing is big.
Utility model content
In order to overcome the shortcomings of background technology, this utility model provides a kind of hydraulic pressure sensor, solves existing hydraulic pressure sensing
The problem that device internal pressure spring elasticity size is difficult to adjust.
The technical scheme that this utility model is adopted: a kind of hydraulic pressure sensor, including upper valve body, lower valve body, diaphragm, push away
Bar, compression spring, the pcb circuit board with Hall element；Described push rod is arranged in upper valve body, and its upper end is provided with and is passed with Hall
The magnet assemblies of sensor sensing, lower end connects diaphragm, and described diaphragm is located between upper valve body, lower valve body；Described compression spring
Then it is supported between push rod and upper valve body；It is provided with regulating bolt, described regulating bolt is provided with and supplies medium flow field in described lower valve body
Logical passage, is provided with regulation spring between described regulating bolt and diaphragm.
Described magnet assemblies include the first Magnet, the second Magnet, and described first Magnet, the second Magnet keep certain distance,
And homopolarity arranges in opposite directions；Described Hall element is placed between the first Magnet and the second Magnet.
Described push rod upper end is in axial direction sequentially provided with the first installing hole and the second installing hole, is respectively used to install first
Magnet and the second Magnet；It is provided with loose slot, for placing Hall element activity between first installing hole and the second installing hole.
Between described first Magnet and the first installing hole, it is equipped with freezing plastic between the second Magnet and the second installing hole and carries out
Solidification.
Described diaphragm bottom centre is provided with positioning and protrudes, and described one end adjusting spring is enclosed within positioning and protrudes.
The beneficial effects of the utility model are: adopt above scheme, can be carried out by regulating bolt and regulation spring trickle
Regulation, adjustment compression spring elasticity size, it is ensured that the required precision of product while reducing production and processing difficulty.
Brief description
Fig. 1 is this utility model example structure schematic diagram.
Fig. 2 is the structural representation of this utility model embodiment push rod.
In figure 1- upper valve body, 2- lower valve body, 3- diaphragm, 31- positioning is protruded, 4- push rod, 41- first installing hole, 42- second
Installing hole, 43- loose slot, 5- compression spring, 6- regulating bolt, 61- passage, 7- adjusts spring, 8- Hall element, 9- first
Magnet, 10- second Magnet.
Specific embodiment
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this
Utility model is further described in detail, embodiments given below only for illustrating this utility model, rather than in order to
Limit scope of the present utility model.
In description of the present utility model, it should be noted that term " on ", D score, the orientation of instruction or the position such as " bottom "
The relation of putting refers to the position relationship in accompanying drawing, is for the ease of description this utility model and to simplify description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
Restriction of the present utility model.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying
Relative importance.
As illustrated, a kind of hydraulic pressure sensor, including upper valve body 1, lower valve body 2, diaphragm 3, push rod 4, compression spring 5, band
The pcb circuit board of Hall element 8；Described push rod 4 is arranged in upper valve body 1, and its upper end is provided with and Hall element 8 sensing
Magnet assemblies, lower end connects diaphragm 3, and described diaphragm 3 is located between upper valve body 1, lower valve body 2；Described compression spring 5 is then supported
Between push rod 4 and upper valve body 1；It is provided with regulating bolt 6, described regulating bolt 6 is provided with and supplies flow of media in described lower valve body 2
Passage 61, be provided between described regulating bolt 6 and diaphragm 3 regulation spring 7.
Aqueous medium can flow into lower valve body 2 from the passage 61 of regulating bolt 6, thus promoting diaphragm 3, diaphragm 3 can drive push rod 4
Action, makes magnet assemblies produce change in displacement with Hall element, thus changing and exporting corresponding standard signal.
Trickle regulation, adjustment compression spring elasticity size can be carried out with adjusting spring by regulating bolt, reducing life
Produce while difficulty of processing it is ensured that the required precision of product.
As illustrated, described magnet assemblies include the first Magnet 9, the second Magnet 10, described first Magnet 9, the second Magnet
10 keep certain distances, and homopolarity is arranged in opposite directions；Described Hall element 8 is placed between the first Magnet 9 and the second Magnet 10.
When aqueous medium promotes diaphragm action, described first Magnet 9 is away from Hall element 8, and the second Magnet 10 then phase
To near Hall element 8, the relative distance between the first Magnet 9, the second Magnet 10 and Hall element 8 produces change simultaneously
Change so that the change of magnetic field intensity is with the change of distance is proportional so that output voltage is proportional with distance change, have preferable
The linearity, meet the requirement to hydraulic pressure sensor performance for the client.
As illustrated, described push rod 4 upper end is in axial direction sequentially provided with the first installing hole 41 and the second installing hole 42, point
First Magnet 9 and the second Magnet 10 Yong Yu be installed；It is provided with loose slot 43 between first installing hole 41 and the second installing hole 42, use
In placing Hall element 8 activity, not only rational in infrastructure, and the first Magnet 9, the second Magnet 10, Hall element 8 are installed
Very convenient.
Further, between described first Magnet 9 and the first installing hole 41, between the second Magnet 10 and the second installing hole 42
It is equipped with freezing plastic to be solidified, further guarantee the first Magnet 9, the second Magnet 10 are fixed.
As illustrated, described diaphragm 3 bottom centre is provided with positioning protrusion 31, described one end adjusting spring 7 is enclosed within positioning
Protrude on 31, be not only convenient for adjusting the installation of spring 7, and play certain locating effect to adjusting spring 7, adjust more smart
Quasi-steady.
Embodiment is not construed as the restriction to utility model, but any based on of the present utility model spirit improvements introduced,
All should be within protection domain of the present utility model.
Claims (5)
1. a kind of hydraulic pressure sensor, including upper valve body (1), lower valve body (2), diaphragm (3), push rod (4), compression spring (5), band suddenly
The pcb circuit board of your sensor (8)；
Described push rod (4) is arranged in upper valve body (1), and its upper end is provided with the magnet assemblies sensing with Hall element (8), lower end
Connect diaphragm (3), described diaphragm (3) is located between upper valve body (1), lower valve body (2)；Described compression spring (5) is then supported in
Between push rod (4) and upper valve body (1)；
It is characterized in that: it is provided with regulating bolt (6) in described lower valve body (2), described regulating bolt (6) is provided with and supplies flow of media
Passage (61), be provided between described regulating bolt (6) and diaphragm (3) regulation spring (7).
2. hydraulic pressure sensor according to claim 1 it is characterised in that: described magnet assemblies include the first Magnet (9),
Two Magnet (10), described first Magnet (9), the second Magnet (10) keep certain distance, and homopolarity is arranged in opposite directions；Described Hall passes
Sensor (8) is placed between the first Magnet (9) and the second Magnet (10).
3. hydraulic pressure sensor according to claim 2 it is characterised in that: described push rod (4) upper end is in axial direction successively
It is provided with the first installing hole (41) and the second installing hole (42), be respectively used to the first Magnet (9) and the second Magnet (10) are installed；First
It is provided with loose slot (43), for placing Hall element (8) activity between installing hole (41) and the second installing hole (42).
4. hydraulic pressure sensor according to claim 3 it is characterised in that: described first Magnet (9) and the first installing hole
(41), between, it is equipped with freezing plastic between the second Magnet (10) and the second installing hole (42) and is solidified.
5. hydraulic pressure sensor according to claim 3 it is characterised in that: described diaphragm (3) bottom centre is provided with convex
Go out (31), described one end adjusting spring (7) is enclosed within positioning and protrudes on (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620879362.7U CN205898353U (en) | 2016-08-15 | 2016-08-15 | Pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620879362.7U CN205898353U (en) | 2016-08-15 | 2016-08-15 | Pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205898353U true CN205898353U (en) | 2017-01-18 |
Family
ID=57782088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620879362.7U Active CN205898353U (en) | 2016-08-15 | 2016-08-15 | Pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205898353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402102A (en) * | 2017-08-11 | 2017-11-28 | 浙江华地电子有限公司 | Wind pressure sensor |
| CN110243530A (en) * | 2019-07-23 | 2019-09-17 | 浙江耀达智能科技股份有限公司 | A kind of novel pressure sensor |
-
2016
- 2016-08-15 CN CN201620879362.7U patent/CN205898353U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402102A (en) * | 2017-08-11 | 2017-11-28 | 浙江华地电子有限公司 | Wind pressure sensor |
| CN110243530A (en) * | 2019-07-23 | 2019-09-17 | 浙江耀达智能科技股份有限公司 | A kind of novel pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |