CN206531605U - A kind of pressure instrumentation - Google Patents
A kind of pressure instrumentation Download PDFInfo
- Publication number
- CN206531605U CN206531605U CN201720197695.6U CN201720197695U CN206531605U CN 206531605 U CN206531605 U CN 206531605U CN 201720197695 U CN201720197695 U CN 201720197695U CN 206531605 U CN206531605 U CN 206531605U
- Authority
- CN
- China
- Prior art keywords
- pressure
- mandrel
- bourdon tube
- medium
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of pressure instrumentation, belong to industry detection apparatus.It includes support, watchcase, table cover, panel, Bourdon tube, transmission mechanism, mandrel.The side wall of support is provided with mounting hole, the mounting hole and first medium pipeline communication.Pressure instrumentation also includes pressure relief mechanism, and the pressure relief mechanism includes sealing column, spring, seal cap.Bourdon tube produces bending in the presence of medium and indirect belt moving mandrel rotates, and mandrel rotational angle represents the size of pressure of pressure medium, so as to reach the purpose of detection pressure.Spring provides pretightning force and acted in sealing column, and when the hydraulic pressure in first medium pipeline reaches predetermined value, sealing column is moved right, and medium fluid is overflowed from mounting hole.The structure effectively controls the maximum pressure medium into instrument, it is to avoid the pressure medium entered in Bourdon tube is excessive and damages the precise parts such as Bourdon tube.
Description
Technical field
The utility model is related to detection means, more particularly to a kind of pressure instrumentation.
Background technology
Mechanical pressure gauge is applicable more compared to electronic pressure gage its sound construction, durable in use, the advantages of use environment is wide
In the more severe occasion of operating mode.Mechanical pressure gauge generally includes watchcase, table cover, the Bourdon tube being arranged in watchcase and rotatable core
Axle, is connected to the pressure deformation switching mechanism between Bourdon tube and mandrel.Bourdon tube produces bending, Bourdon tube in the presence of medium
Indirect belt moving mandrel rotates, and mandrel rotational angle represents the size of pressure of pressure medium.Its concrete structure can refer to
200820170625.2, described in 201210250754.3 etc..Bourdon tube is elastic sensing element, bending change or torsion by pipe
Turn deformation measurement pressure.Using flow harden section bar material（Copper alloy）The Bourdon tube pressure-bearing being made is limited, and pressure is crossed may well
Damage equipment.
Utility model content
The utility model proposes a kind of pressure instrumentation, effectively control enters the maximum pressure of the fluid media (medium) of instrument
Power, it is to avoid pressure medium is excessive to damage the accurate devices such as Bourdon tube.
What the technical solution of the utility model was realized in：
A kind of pressure instrumentation, including support, watchcase, table cover, panel, Bourdon tube, transmission mechanism, mandrel, the table
Shell and table cover are each attached on the support, and the panel is located between the watchcase and table cover, and the support is situated between provided with first
Matter pipeline, one end of the Bourdon tube is fixed on the bracket, and the other end is connected to the transmission mechanism, is set in the Bourdon tube
There is second medium pipeline, the second medium pipeline and the first medium pipeline communication, the transmission mechanism are connected to the core
Axle, the mandrel passes through the panel, and the end of the mandrel is provided with pointer, it is characterised in that the side wall of the support is provided with peace
Hole, the mounting hole and the first medium pipeline communication are filled, the pressure instrumentation also includes pressure relief mechanism, the pressure relief mechanism
Including sealing column, spring, seal cap, the sealing column is movably disposed in the mounting hole, and the sealing column is provided with taper
Portion, the spring housing is in the tapered portion, and one end of the spring is connected to the sealing column, and the other end is fixed on the seal cap
On, the seal cap is fixed on the mounting hole.
In this pressure instrumentation of the present utility model, isolate between the seal cap and the tapered portion provided with one
Part, the separator is made of tinfoil or oilpaper.
In this pressure instrumentation of the present utility model, the transmission mechanism includes connecting rod, swing arm, and the connecting rod connects
The Bourdon tube is rotatably connected to, one end of the swing arm is rotatably connected to the connecting rod, and the other end is provided with a canine tooth
Wheel portion, the mandrel is provided with pinion part, and the pinion part is engaged in the canine tooth wheel portion.
In this pressure instrumentation of the present utility model, the transmission mechanism also includes torsion spring, one end of the torsion spring
The support is connected to, the other end is fixed on the mandrel.
In this pressure instrumentation of the present utility model, the bottom of the support is provided with screwed pipe, the screwed pipe
Provided with thread plug, the screwed pipe is connected through an interconnecting part with the first medium pipeline, and the thread plug stretches into the screwed pipe.
Implement this pressure instrumentation of the present utility model, have the advantages that：Effect of the Bourdon tube in medium
Lower to produce bending and the rotation of indirect belt moving mandrel, mandrel rotational angle represents the size of pressure of pressure medium, so as to reach detection
The purpose of pressure.Spring provides pretightning force and acted in sealing column, close when the hydraulic pressure in first medium pipeline reaches predetermined value
Envelope post is moved right, and medium fluid is overflowed from mounting hole.The structure effectively controls the maximum pressure medium into instrument, it is to avoid
It is excessive and damage the precise parts such as Bourdon tube into the pressure medium in Bourdon tube.Transmission mechanism amplifies the deformation quantity of Bourdon tube,
Be conducive to improving equipment precision.Thread plug can adjust the gap of screwed pipe and first medium pipeline, and reduction fluid enters Bourdon tube
Speed, it is to avoid pointer frequent vibration.
Brief description of the drawings
Fig. 1 is the schematic diagram of pressure instrumentation of the present utility model；
Fig. 2 is the schematic diagram of Fig. 1 use state；
Fig. 3 is Fig. 1 partial view, its internal structure of main presentation；
Fig. 4 is Fig. 1 sectional view；
Fig. 5 is the enlarged drawing at Fig. 4 A.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe.
Such as Fig. 1,3 to 5, pressure instrumentation 100 of the present utility model is by support 110, watchcase 120, table cover 130, panel
140th, Bourdon tube 150, transmission mechanism 160, mandrel 170 and pressure relief mechanism 180 are constituted.Watchcase 120 and table cover 130 are each attached to
On support 110, panel 140 is located between the watchcase 120 and table cover 130.Panel 140 is provided with scale, and dead-center position is provided with
Limited post 141.Support 110, which is provided with first medium pipeline 111, the Bourdon tube 150, is provided with second medium pipeline 151, and this second
Medium pipeline 151 is connected with first medium pipeline 111.One end of Bourdon tube 150 is fixed on the support 110, and the other end connects
It is connected to the transmission mechanism 160.Transmission mechanism 160 is connected to the mandrel 170, and the mandrel 170 passes through the panel 140,
The end of the mandrel 170 is provided with pointer 171.Compares figure 2, the pressure medium of main pipeline 200 can reflect through first medium pipeline 111
Into second medium pipeline 151.Bourdon tube 150 produces bending in the presence of medium and indirect belt moving mandrel 170 rotates.Mandrel
170 represent the size of pressure of pressure medium with the rotational angle of pointer 171.In addition, be also provided with main pipeline 200 valve 300,
The grade part of flanged pipe 400.
The side wall of support 110 is provided with mounting hole 112, and the mounting hole 112 is connected with the first medium pipeline 111.Pressure release
Mechanism 180 includes sealing column 181, spring 182, seal cap 183.The sealing column 181 is movably disposed at the mounting hole
In 112, the sealing column 181 is provided with tapered portion 184, and the spring 182 is enclosed in the tapered portion 184.One end of the spring 182 connects
The sealing column 181 is connected to, the other end is fixed in the seal cap 183, and the seal cap 183 is fixed on the mounting hole 112
On.The pretightning force that spring 182 is provided is acted in sealing column 181, when the hydraulic pressure in first medium pipeline reaches predetermined value（Pressure
More than pretightning force）When, sealing column 181 moves right.Medium fluid is overflowed from the passage of the side wall of mounting hole 112.The structure has
Effect control enters the maximum pressure medium of instrument, it is to avoid the pressure medium entered in Bourdon tube 150 is excessive and damages Bourdon tube 150
Deng precise part.Preferably, being provided with a separator 185 between seal cap 183 and the tapered portion 184, the separator 185 is adopted
It is made of tinfoil or oilpaper.In normal state, separator 185 can avoid the dust granules in working environment from entering pressure release machine
Structure 180.When pressure medium is excessive, the sealing column 181 moved right drives tapered portion 184 to pierce through separator 185, contributes to medium
Outflow.
Reference picture 3,4, the utility model discloses a kind of preferred transmission mechanism 160.The transmission mechanism 160 includes connecting rod
161st, swing arm 162 and torsion spring 163.The connecting rod 161 is even rotatably connected to the Bourdon tube 150, the one of the swing arm 162
End is rotatably connected to the connecting rod 161, and the other end is provided with a canine tooth wheel portion 164.Through the band of connecting rod 161 after the deformation of Bourdon tube 150
Movable pendulum arm 162 is rotated.The mandrel 170 is provided with pinion part 172, and the pinion part 172 is engaged on the canine tooth wheel portion 164
On.The diameter of canine tooth wheel portion 164 is more than pinion part 172, and the rotation by a small margin of canine tooth wheel portion 164 can be in pinion part 172
Large rotation angle is zoomed into, corner is exaggerated, is conducive to improving equipment precision.One end of torsion spring 163 is connected to the support
110, the other end is fixed on the mandrel 170.Torsion spring 163 contributes to after pressure medium disappears, and pointer 171 is returned to initially
Position.The bottom of support 110 is provided with screwed pipe 113, is provided with thread plug 114 in the screwed pipe 113, and medium is from thread plug 114
Through hole 116 enters first medium pipeline 111.The screwed pipe 113 is parallel to first medium pipeline 111, and the screwed pipe 113
It is connected through an interconnecting part 115 with the first medium pipeline 111, thread plug 114 stretches into the interconnecting part 115.Thread plug 114 is adjustable
The gap of whole screwed pipe 113 and first medium pipeline 111, reduction fluid enters the speed of Bourdon tube 150, it is to avoid the frequency of pointer 171
Numerous vibration.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of pressure instrumentation, including support, watchcase, table cover, panel, Bourdon tube, transmission mechanism, mandrel, the watchcase
It is each attached to table cover on the support, the panel is located between the watchcase and table cover, the support is provided with first medium
Pipeline, one end of the Bourdon tube is fixed on the bracket, and the other end is connected to the transmission mechanism, is provided with the Bourdon tube
Second medium pipeline, the second medium pipeline and the first medium pipeline communication, the transmission mechanism are connected to the mandrel,
The mandrel passes through the panel, and the end of the mandrel is provided with pointer, it is characterised in that the side wall of the support is provided with installation
Hole, the mounting hole and the first medium pipeline communication, the pressure instrumentation also include pressure relief mechanism, the pressure relief mechanism bag
Sealing column, spring, seal cap are included, the sealing column is movably disposed in the mounting hole, the sealing column is provided with tapered portion,
The spring housing is in the tapered portion, and one end of the spring is connected to the sealing column, and the other end is fixed in the seal cap,
The seal cap is fixed on the mounting hole.
2. pressure instrumentation according to claim 1, it is characterised in that be provided between the seal cap and the tapered portion
One separator, the separator is made of tinfoil or oilpaper.
3. pressure instrumentation according to claim 1, it is characterised in that the transmission mechanism includes connecting rod, swing arm, institute
State connecting rod and be even rotatably connected to the Bourdon tube, one end of the swing arm is rotatably connected to the connecting rod, and the other end is set
There is a canine tooth wheel portion, the mandrel is provided with pinion part, and the pinion part is engaged in the canine tooth wheel portion.
4. pressure instrumentation according to claim 1, it is characterised in that the transmission mechanism also includes torsion spring, the torsion
One end of spring is connected to the support, and the other end is fixed on the mandrel.
5. pressure instrumentation according to claim 1, it is characterised in that the bottom of the support is provided with screwed pipe, should
Thread plug is provided with screwed pipe, the screwed pipe is connected through an interconnecting part with the first medium pipeline, and the thread plug is stretched into
The screwed pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720197695.6U CN206531605U (en) | 2017-03-02 | 2017-03-02 | A kind of pressure instrumentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720197695.6U CN206531605U (en) | 2017-03-02 | 2017-03-02 | A kind of pressure instrumentation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206531605U true CN206531605U (en) | 2017-09-29 |
Family
ID=59915641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720197695.6U Expired - Fee Related CN206531605U (en) | 2017-03-02 | 2017-03-02 | A kind of pressure instrumentation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206531605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642620A (en) * | 2023-07-25 | 2023-08-25 | 苏州新意达仪器科技有限公司 | Pressure gauge sealing structure |
| CN118518247A (en) * | 2024-07-23 | 2024-08-20 | 江苏杰克仪表有限公司 | But remote monitoring's manometer |
-
2017
- 2017-03-02 CN CN201720197695.6U patent/CN206531605U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642620A (en) * | 2023-07-25 | 2023-08-25 | 苏州新意达仪器科技有限公司 | Pressure gauge sealing structure |
| CN116642620B (en) * | 2023-07-25 | 2023-10-10 | 苏州新意达仪器科技有限公司 | Pressure gauge sealing structure |
| CN118518247A (en) * | 2024-07-23 | 2024-08-20 | 江苏杰克仪表有限公司 | But remote monitoring's manometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |