CN109799028A - Rotary type pressure transmitter - Google Patents
Rotary type pressure transmitter Download PDFInfo
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- CN109799028A CN109799028A CN201711137572.4A CN201711137572A CN109799028A CN 109799028 A CN109799028 A CN 109799028A CN 201711137572 A CN201711137572 A CN 201711137572A CN 109799028 A CN109799028 A CN 109799028A
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- China
- Prior art keywords
- display
- butt end
- rotary type
- type pressure
- pressure transmitter
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Abstract
The invention discloses a kind of rotary type pressure transmitters comprising shell, pressure measuring unit and display unit, the shell have butt end, and the cross section profile of the butt end is circle.The pressure measuring unit includes the conducting wire for extending the butt end.The display unit includes display gauge head and display circuit board, the display circuit board is mounted in the display gauge head, the conducting wire is connected on the display circuit board, the display gauge head includes gauge outfit end and attachment base, the gauge outfit end cap is located at except the butt end, and O-ring is installed between the gauge outfit end and the shell, the attachment base is fixedly connected with the display gauge head, and the attachment base is embedded within the butt end and is connected together with the butt end.Rotary type pressure transmitter of the invention can not only be such that display gauge head rotates close to 360 °, additionally it is possible to good leakproofness and fastness are kept, and compact-sized, it is applied widely.
Description
Technical field
The present invention relates to pressure transmitter, in particular to a kind of rotary type pressure transmitter.
Background technique
Pressure transmitter refers to export the pressure sensor for standard signal, is that a kind of pressure variations that receive turn in proportion
It is changed to the instrument of standard output signals.It can turn the physical pressures parameters such as gas, liquid that load cell is experienced
The electric signal (such as 4-20mADC) for becoming standard, is surveyed with supplying the secondary meters such as indicator alarm, recorder, adjuster
Amount, instruction and procedure regulation.In the occasion of operating condition complexity, it is often necessary to which transmitter itself can show output signal, and be
The reading that transmitter is observed convenient for operator, needs the reading gauge outfit of rotation transducers.There is open gauge outfit can in the prior art
With the pressure transmitter of rotation, some pressure transmitters are rotatable using gear or bearing realization, but will lead to pick-up in this way
The volume of device is big, and weight is big, and structure is complicated, and sealing performance is bad.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the gauge outfit rotating part volume of transmitter in the prior art big,
Weight is big, and structure is complicated, and the defect that sealing performance is bad, provides a kind of rotary type pressure transmitter.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of rotary type pressure transmitter, it is characterized in that comprising:
Shell, the shell have butt end, and the cross section profile of the butt end is circle；
Pressure measuring unit, the pressure measuring unit include the conducting wire for extending the butt end；
Display unit, the display unit include display gauge head and display circuit board, and the display circuit board is mounted on institute
It states in display gauge head, the conducting wire is connected on the display circuit board, and the display gauge head includes gauge outfit end and attachment base, institute
It states gauge outfit end cap to be located at except the butt end, and O-ring, the attachment base is installed between the gauge outfit end and the shell
It is fixedly connected with the display gauge head, the attachment base is embedded within the butt end and is connected together with the butt end.
Butt end cross section profile is circle, consequently facilitating rotational display gauge outfit, attachment base can guarantee that display gauge head is secured
Ground is connected together with shell, and O-ring plays sealing function, while the also medium as display gauge head and shell relative rotation.This
Sample can not only be such that display gauge head rotates close to 360 °, additionally it is possible to keep good leakproofness and fastness.
Preferably, the butt end periphery has seal groove, the O-ring is set in the seal groove.On butt end
It is provided with seal groove, convenient for being fixed on O-ring on butt end, so that gauge outfit end be made to rotate relative to O-ring.
Preferably, being coated with lubricating oil on the O-ring.O-ring, which is coated with lubricating oil, to be occurred in butt end and gauge outfit end
Adequately protect O-ring when relative rotation, reduces the abrasion of O-ring.
Preferably, the O-ring includes outer ring and inner ring, the outer ring than the inner ring closer to the pressure measuring unit,
The diameter in the section of the outer ring is greater than the diameter in the section of the inner ring.Double-deck O-ring is capable of providing more excellent close
Envelope, and two seals are successively thinner from outside to inside, form sealing gradient, guarantee internal preferable leakproofness.
Preferably, the attachment base is equipped with threading hole, the conducting wire passes through the threading hole and is connected to the display
Circuit board.Threading hole can be effectively protected conducting wire and not twisted into two parts when display gauge head rotates.
Preferably, the periphery of the attachment base has frustum structure, the inside of the shell has step structure, the cone
Platform structure engages with the step structure.Frustum structure and step structure form good snap-in structure, in this way in display gauge head
When rotation, it can guarantee firmly to engage always, prevent display gauge head from loosening.
Preferably, the attachment base is fixedly connected with the display gauge head by encapsulating.Being fixedly connected by encapsulating can
Save the inner space of transmitter, while the good airproof performance of process for filling colloid.
Preferably, the display gauge head has display surface, the display circuit board is fixed by screws in the display surface
The angle of the axis of inside, the display surface and the butt end is 30 degree to 60 degree, most preferably 45 degree.Display circuit board passes through
Screw is fixed, therefore convenient to overhaul and disassembly.It is aobvious convenient for rotation that certain angle is arranged in display surface and the axis of the butt end
Show gauge outfit, is also convenient for observation display surface.
Preferably, the pressure measuring unit further includes conversion circuit and temperature compensation plates, the conducting wire is welded on the conversion
On circuit, the conversion circuit is fixed in the temperature compensation plates by contact pin and is electrically connected with the temperature compensation plates.Temperature
Degree compensating plate can exclude the interference of temperature, make measurement more accurate, conversion circuit can make the signal of transmitter be easy to detect.
Preferably, the display circuit board is the circuit board for configuring LED backlit display, this makes it possible to guarantee very weak
Light under observe data, have stronger adaptability.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that: rotary type pressure transmitter of the invention can not only make display gauge head
It is rotated close to 360 °, additionally it is possible to good leakproofness and fastness are kept, and compact-sized, it is applied widely.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the rotary type pressure transmitter of present pre-ferred embodiments.
Fig. 2 is the partial enlargement diagram of part A in Fig. 1.
Description of symbols:
Shell 1
Butt end 11
Step structure 12
Pressure measuring unit 2
Conducting wire 21
Conversion circuit 22
Temperature compensation plates 23
Spread silicon core 24
Pressure inlet 25
Clamping cap 26
Plug-in unit 27
Four core plug sockets 28
Display unit 3
Display gauge head 31
Gauge outfit end 32
Display surface 33
Display circuit board 34
Attachment base 4
Threading hole 41
Frustum structure 42
Backing pin 43
Block 44
O-ring 5
Outer ring 51
Inner ring 52
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
The rotary type pressure transmitter of the present embodiment, as depicted in figs. 1 and 2 comprising shell 1, pressure measuring unit 2 and aobvious
Show that unit 3, shell 1 have butt end 11, the cross section profile of butt end 11 is circle.Pressure measuring unit 2 includes extending butt end
11 conducting wire 21.Display unit 3 includes display gauge head 31 and display circuit board 34, and display circuit board 34 is mounted on display gauge head 31
Interior, conducting wire 21 is connected on display circuit board 34, and as shown in FIG. 2, display gauge head 31 includes gauge outfit end 32 and attachment base 4,
Gauge outfit end 32 is set in except butt end 11, and O-ring 5 is equipped between gauge outfit end 32 and shell 1, attachment base 4 and display table
First 31 are fixedly connected, and attachment base 4 is embedded within butt end 11 and is connected together with butt end 11.
11 cross section profile of butt end is circle, consequently facilitating rotational display gauge outfit 31, attachment base 4 can guarantee display gauge head
31 are connected together with shell 1 securely, and O-ring 5 plays sealing function, while also as display gauge head 31 and the opposite rotation of shell 1
The medium turned.Can not only make in this way display gauge head 31 do close to 360 ° rotate, additionally it is possible to keep good leakproofness and securely
Property.
11 periphery of butt end has seal groove, and O-ring 5 is set in seal groove.It is provided with seal groove on butt end 11, is convenient for
It is fixed on O-ring 5 on butt end 11, so that gauge outfit end 32 be made to rotate relative to O-ring 5.Since gauge outfit end 32 is in outermost,
Gauge outfit end 32 does not set the intensity that seal groove advantageously ensures that gauge outfit end 32.
Lubricating oil is coated on O-ring 5.O-ring 5 is the medium that butt end 11 and gauge outfit end 32 relatively rotate, therefore O
Type circle 5 is coated with lubricating oil and can adequately protect when butt end 11 and gauge outfit end 32 relatively rotate O-ring 5, reduces O
The abrasion of type circle 5.
O-ring 5 includes outer ring 51 and inner ring 52, outer ring 51 than inner ring 52 closer to pressure measuring unit 2, the section of outer ring 51
Diameter is greater than the diameter in the section of inner ring 52.Double-deck O-ring 5 is capable of providing more excellent sealing, and two seals
It is successively thinner from outside to inside, sealing gradient is formed, guarantees internal preferable leakproofness.
Attachment base 4 is equipped with threading hole 41, and conducting wire 21 passes through threading hole 41 and is connected to display circuit board 34.Threading hole 41
Enough spaces can be provided for conducting wire 21, conducting wire 21 is effectively protected and is not twisted into two parts when display gauge head 31 rotates.
The periphery of attachment base 4 has frustum structure 42, and the inside of shell 1 has step structure 12, frustum structure 42 and platform
Stage structure 12 engages.Frustum structure 42 and step structure 12 form good snap-in structure, rotate in this way in display gauge head 31
When, it can guarantee firmly to engage always, prevent display gauge head 31 from loosening.
Backing pin 43 is additionally provided on shell 1, backing pin 43 is extended perpendicularly in the axis of shell 1.Frustum structure
There are four 42, and it is uniformly distributed in the circumferential.Block 44 is additionally provided in a frustum structure 42 wherein, block 44 is one
A frustum structure 42 lengthens gained, and the extending direction of block 44 is parallel to the direction of the axis of shell 1.When block 44 is around shell 1
Axis rotation when, backing pin 43 can block block 44 in the rotating path of block 44, so that display gauge head 31 can only be one
Rotation in circle prevents from damaging conducting wire 21 because of 31 unlimited rotary of display gauge head.
Attachment base 4 is fixedly connected with display gauge head 31 by encapsulating.Transmitter can be saved by being fixedly connected by encapsulating
Inner space, while the good airproof performance of process for filling colloid.
Display gauge head 31 has display surface 33, and display circuit board 34 is fixed by screws in 33 inside of display surface, display surface
33 and the angle of the axis of butt end 11 can be 30 degree to 60 degree, be best with 45 degree.Display circuit board 34 is solid by screw
Fixed therefore convenient to overhaul and disassembly.Certain angle is arranged convenient for rotational display gauge outfit in display surface 33 and the axis of butt end 11
31, it is also convenient for observation display surface 33.
Pressure measuring unit 2 further includes conversion circuit 22 and temperature compensation plates 23, and conducting wire 21 is welded in conversion circuit 22, conversion
Circuit 22 is fixed in temperature compensation plates 23 by contact pin and is electrically connected with temperature compensation plates 23.Temperature compensation plates 23 can exclude
The interference of temperature makes measurement more accurate, and conversion circuit 22 can make the signal of transmitter be easy to detect.
Display circuit board 34 is the circuit board configured with LED backlit display, and this makes it possible to guarantee in very weak light
Lower observation data have stronger adaptability.
During installation, diffusion silicon core 24 is placed in the corresponding hole of pressure inlet 25 first, certainly by diffusion silicon core 24
The sealing ring radial seal of band, and compressed by clamping cap 26.The conducting wire 21 spread on silicon core 24 is connected to temperature as required
On compensating plate 23, then temperature compensation plates 23 are fixed on clamping cap 26 by cross cheese head screw and washer.By conversion circuit
22 are fixed in temperature compensation plates 23 by contact pin, and welding lead 21 (four) in conversion circuit 22, and sealing snare is existed
On pressure inlet 25, and shell 1 is mounted on pressure inlet 25, is tightened, then four core plug sockets 28 is welded on shell 1, so
Two power supply lines are welded on plug-in unit 27 afterwards, then plug-in unit 27 is tightened on four core plug sockets 28.It is covered on shell 1 upper O-shaped
Circle 5, i.e. outer ring 51 and inner ring 52.Display circuit board 34 is fixed on display gauge head 31 by cross cheese head screw, encapsulating will
Attachment base 4 is fixed on display gauge head 31, and then two conducting wires 21 are connect and debugged with display circuit board 34.Debugging is completed
Afterwards, lubricating oil is coated on O-ring 5, then display gauge head 31 is mounted on shell 1, by attachment base 4 by display gauge head 31
It buckles up on shell 1, and is sealed by O-ring 5.
The rotary type pressure transmitter of the present embodiment has live display function and display gauge head can do 360 ° of rotations.It adopts
With high performance pressure-sensitive core, cooperate advanced processing of circuit and technique for temperature compensation, there is high sensitivity, high-precision, Gao Wen
Qualitative feature, is adapted to long-term observation.Convert pressure change to linear current or voltage signal, and instant playback.It adopts
Rotatable head is shown with scene, it is more humanized, display surface can be transferred to the direction for being easiest to observation, to keep monitoring more square
Just.Display gauge head is furnished with adjustable key, can Field adjustment, calibration, to guarantee that measurement data is more acurrate.The present embodiment can
Rotary pressure transmitter compact, is easily installed.The rotary type pressure transmitter of the present embodiment is widely used in automatically
Detection system, the energy and water process, oil well real-time management, petrochemical industry water power and various hydraulic, the field monitoring of air pressure.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of rotary type pressure transmitter, characterized in that it comprises:
Shell, the shell have butt end, and the cross section profile of the butt end is circle；
Pressure measuring unit, the pressure measuring unit include the conducting wire for extending the butt end；
Display unit, the display unit include display gauge head and display circuit board, and the display circuit board is mounted on described aobvious
Show in gauge outfit, the conducting wire is connected on the display circuit board, and the display gauge head includes gauge outfit end and attachment base, the table
Head end is set in except the butt end, and O-ring, the attachment base and institute are equipped between the gauge outfit end and the shell
It states display gauge head to be fixedly connected, the attachment base is embedded within the butt end and is connected together with the butt end.
2. rotary type pressure transmitter as described in claim 1, which is characterized in that the butt end periphery has sealing
Slot, the O-ring are set in the seal groove.
3. rotary type pressure transmitter as described in claim 1, which is characterized in that be coated with lubricating oil on the O-ring.
4. rotary type pressure transmitter as described in claim 1, which is characterized in that the O-ring includes outer ring and inner ring,
Than the inner ring closer to the pressure measuring unit, the diameter in the section of the outer ring is greater than the section of the inner ring for the outer ring
Diameter.
5. rotary type pressure transmitter as described in claim 1, which is characterized in that the attachment base is equipped with threading hole,
The conducting wire passes through the threading hole and is connected to the display circuit board.
6. rotary type pressure transmitter as described in claim 1, which is characterized in that the periphery of the attachment base has frustum
The inside of structure, the shell has step structure, and the frustum structure engages with the step structure.
7. rotary type pressure transmitter as described in claim 1, which is characterized in that the attachment base and the display gauge head
It is fixedly connected by encapsulating.
8. rotary type pressure transmitter as described in claim 1, which is characterized in that the display gauge head has display surface,
The display circuit board is fixed by screws on the inside of the display surface, the angle of the axis of the display surface and the butt end
It is 30 degree to 60 degree.
9. rotary type pressure transmitter as described in claim 1, which is characterized in that the pressure measuring unit further includes conversion electricity
Road and temperature compensation plates, the conducting wire are welded in the conversion circuit, and the conversion circuit is fixed on the temperature by contact pin
It is electrically connected on degree compensating plate and with the temperature compensation plates.
10. rotary type pressure transmitter as in one of claimed in any of claims 1 to 9, which is characterized in that the display electricity
Road plate is the circuit board for configuring LED backlit display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137572.4A CN109799028A (en) | 2017-11-16 | 2017-11-16 | Rotary type pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137572.4A CN109799028A (en) | 2017-11-16 | 2017-11-16 | Rotary type pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109799028A true CN109799028A (en) | 2019-05-24 |
Family
ID=66555393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711137572.4A Pending CN109799028A (en) | 2017-11-16 | 2017-11-16 | Rotary type pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109799028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192789A (en) * | 2019-12-10 | 2020-05-22 | 南京沃天科技有限公司 | Design method of rotatable pressure switch with limiting device |
-
2017
- 2017-11-16 CN CN201711137572.4A patent/CN109799028A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192789A (en) * | 2019-12-10 | 2020-05-22 | 南京沃天科技有限公司 | Design method of rotatable pressure switch with limiting device |
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