CN216116491U - Magnetic pressure difference meter - Google Patents
Magnetic pressure difference meter Download PDFInfo
- Publication number
- CN216116491U CN216116491U CN202122878300.8U CN202122878300U CN216116491U CN 216116491 U CN216116491 U CN 216116491U CN 202122878300 U CN202122878300 U CN 202122878300U CN 216116491 U CN216116491 U CN 216116491U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- magnetic
- hole
- cover plate
- pressure
- 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.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to the technical field of differential pressure gauges, and particularly discloses a magnetic differential pressure gauge, which comprises a differential pressure gauge body, wherein a rotatable pointer assembly is arranged at the differential pressure gauge body, and a first magnetic piece is arranged at the pointer assembly; the pressure difference meter body is also provided with a slidable second magnetic part, and the second magnetic part is used for being matched with the first magnetic part to realize the rotation of the pointer assembly; the pressure difference meter body is also provided with a pushing mechanism, and both sides of the pushing mechanism along the running direction of the pushing mechanism are provided with air inlet mechanisms for connecting external air sources; the pushing mechanism is used for moving from the high-pressure side to the low-pressure side when pressure difference is generated between the two sides, and is used for driving the second magnetic piece to move. The pressure difference between the two air sources can be measured stably by the arrangement of the pointer assembly, the pushing mechanism and the air inlet mechanism, and the pressure difference measuring device has the characteristics of simple structure and convenience in manufacturing.
Description
Technical Field
The utility model relates to the technical field of differential pressure gauges, in particular to a magnetic differential pressure gauge.
Background
The pressure difference meter is used for measuring the pressure difference between two external source gases and is widely applied to measuring the positive and negative pressure difference of clean plants of clean rooms of pharmaceutical factories and electronic factories, heating ventilation air conditioners, purification air conditioners, special meters for purification typhoon showers, detection of the pressure difference of filter screens of the purification air conditioners and the like. The current commonly used 2000 series micro differential pressure gauge on the market mainly comprises a plastic gauge door, a red top pointer, a pointer card, a spiral spring bearing, a pointer frame, a bearing, a zero point adjusting screw, a release plug, a cast aluminum shell, a silicon rubber diaphragm, a calibration range spring, alnico steel and the like, and has the defect of complicated structure.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model is solved by the following technical scheme:
a magnetic differential pressure gauge comprises a differential pressure gauge body, wherein a rotatable pointer assembly is arranged at the differential pressure gauge body, and a first magnetic piece is arranged at the pointer assembly; the pressure difference meter body is also provided with a slidable second magnetic part, and the second magnetic part is used for being matched with the first magnetic part to realize the rotation of the pointer assembly; the pressure difference meter body is also provided with a pushing mechanism, and both sides of the pushing mechanism along the running direction of the pushing mechanism are provided with air inlet mechanisms for connecting external air sources; the pushing mechanism is used for moving from the high-pressure side to the low-pressure side when pressure difference is generated between the two sides, and is used for driving the second magnetic piece to move.
The pressure difference between the two air sources can be measured stably through the arrangement of the pointer assembly, the pushing mechanism and the air inlet mechanism, and compared with a common 2000 series micro differential pressure gauge on the market, the pressure difference measuring instrument has the characteristics of simple structure and convenience in manufacturing.
Preferably, the differential pressure gauge body is provided with a mounting blind hole and a mounting through hole which are perpendicular to each other in the axial direction, and the inner walls of the two ends of the mounting through hole along the axial direction are expanded outwards to form a magnetic ring mounting groove; the pointer assembly is provided with a rotating rod which is rotatably arranged in the installation through hole and a pointer which is arranged at the end part of the rotating rod, the first magnetic part comprises a magnetic ring which is rotatably arranged at a magnetic ring installation groove, and the magnetic ring is fixedly connected with the rotating rod;
the second magnetic piece comprises a magnetic column mounting seat which is slidably arranged in the mounting blind hole, and a magnetic column for driving the magnetic ring to rotate is arranged at the magnetic column mounting seat; and a spring for keeping the magnetic column mounting seat attached to the pushing mechanism is arranged in the mounting blind hole, and the pointer is positioned at the zero position when the spring is positioned at the balance position.
According to the utility model, through the arrangement of the first magnetic part and the second magnetic part, the magnetic column on the second magnetic part can be moved to drive the magnetic ring on the first magnetic part to rotate, so that the detection of the pressure difference is realized more simply and conveniently.
Preferably, the pushing mechanism comprises a cover plate located at the opening end of the installation blind hole, a rubber pad used for plugging the installation blind hole is arranged between the cover plate and the differential pressure gauge body, and a protruding portion used for pushing the second magnetic part is formed at the position, corresponding to the installation blind hole, of the rubber pad.
In the utility model, the driving of the magnetic column is preferably realized through the arrangement of the pushing mechanism structure.
Preferably, the air inlet mechanism comprises a first air inlet mechanism and a second air inlet mechanism which are used for connecting different external air sources; the first air intake mechanism has a first air intake flow passage, the second air intake mechanism has a second air intake flow passage, and the first air intake flow passage and the second air intake flow passage are located at both sides of the boss portion, respectively.
According to the differential pressure gauge, the high-pressure air source and the low-pressure air source can respectively enter the differential pressure gauge body from different ends through the arrangement of the first air inlet mechanism and the second air inlet mechanism.
Preferably, the first air inlet mechanism comprises a first air inlet through hole correspondingly formed in the differential pressure gauge body and a cover plate through hole formed in the cover plate, and a half-tooth bolt is arranged at the position of the first air inlet through hole and the position of the corresponding cover plate through hole; first air inlet blind holes are formed in the middle of the half thread bolts, first communication holes are formed in the side walls of the half thread bolts, first air inlet gaps are formed between the outer walls of the half thread bolts and the inner walls of the first air inlet through holes, and the first air inlet blind holes, the first communication holes, the first air inlet gaps and the first air inlet flow channels are communicated in sequence.
According to the utility model, the blowing-in of the high-pressure air source is preferably realized through the structural arrangement of the first air inlet mechanism.
Preferably, the first intake runner is provided at the cover plate.
According to the utility model, through the arrangement of the position of the first air inlet flow channel, an external high-pressure air source can be sent into a gap between the rubber pad and the cover plate through the first air inlet flow channel.
Preferably, a sealing structure is arranged between the two ends of the half-thread bolt and the differential pressure gauge body and the cover plate.
According to the utility model, through the sealing structure arranged between the half-tooth bolt differential pressure gauge body and the cover plate, the sealing performance between the half-tooth bolt and the first air inlet through hole as well as between the half-tooth bolt and the cover plate can be better improved.
Preferably, the second air inlet mechanism comprises a second air inlet through hole correspondingly arranged at the differential pressure gauge body and another cover plate through hole arranged at the cover plate, and the second air inlet through hole and the corresponding cover plate through hole are provided with the other half of threaded bolt; a second air inlet blind hole is formed in the middle of the other half of the dental bolt, a second communicating opening is formed in the side wall of the other half of the dental bolt, a second air inlet gap is formed between the outer wall of the other half of the dental bolt and the inner wall of the second air inlet through hole, and the second air inlet blind hole, the second communicating opening, the second air inlet gap and the second air inlet channel are sequentially communicated.
According to the utility model, through the structural arrangement of the second air inlet mechanism, the blowing-in of the low-pressure air source is preferably realized.
Preferably, the second intake runner is provided at the differential pressure gauge body.
According to the utility model, through the arrangement of the position of the second air inlet flow channel, an external low-pressure air source can be fed into the mounting blind hole through the second air inlet flow channel.
Preferably, a sealing structure is arranged between the two ends of the other half of the tooth bolt and the differential pressure gauge body and the cover plate.
In the utility model, the sealing structure arranged between the two ends of the other half of the tooth bolt and the pressure difference gauge body and the cover plate can better improve the sealing performance between the other half of the tooth bolt and the second air inlet through hole as well as between the other half of the tooth bolt and the cover plate.
Drawings
Fig. 1 is a schematic structural view of a pressure-difference gauge body in embodiment 1.
Fig. 2 is a sectional view of the body of the pressure gauge in fig. 1.
Fig. 3 is a sectional view of the body of the pressure gauge in fig. 1.
Fig. 4 is a schematic structural diagram of the cover plate in fig. 1.
Fig. 5 is a schematic structural view of the rubber pad in fig. 3.
Fig. 6 is a schematic structural view of the cover plate in fig. 1.
Detailed Description
For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the utility model and not limiting.
Example 1
As shown in fig. 1-2, the present embodiment provides a magnetic pressure difference meter, which includes a pressure difference meter body 110, a rotatable pointer assembly disposed at the pressure difference meter body 110, and a first magnetic member disposed at the pointer assembly; a second magnetic member capable of sliding is further disposed at the differential pressure gauge body 110, and the second magnetic member is used for cooperating with the first magnetic member to realize rotation of the pointer assembly; the pressure difference meter body 110 is also provided with a pushing mechanism, and both sides of the pushing mechanism along the running direction of the pushing mechanism are provided with air inlet mechanisms for connecting external air sources; the pushing mechanism is used for moving from the high-pressure side to the low-pressure side when pressure difference is generated between the two sides, and is used for driving the second magnetic piece to move. The differential pressure gauge body 110 is provided with a blind mounting hole 210 and a through mounting hole 220 which are arranged in the axial direction and are perpendicular to each other, and the inner walls of the two ends of the through mounting hole 220 along the axial direction are expanded outwards to form a magnetic ring mounting groove 230; the pointer assembly has a rotating rod 240 rotatably disposed in the installation through hole 220 and a pointer 120 disposed at an end of the rotating rod 240, the first magnetic member includes a magnetic ring 250 rotatably disposed at the magnetic ring installation groove 230, and the magnetic ring 250 is fixedly connected to the rotating rod 240.
Referring to fig. 3-6, the second magnetic member includes a magnetic pillar mounting seat 310 slidably disposed in the mounting blind hole 210, and a magnetic pillar 320 disposed at the magnetic pillar mounting seat 310 for driving the magnetic ring 250 to rotate; the blind mounting hole 210 is internally provided with a spring 330 for keeping the magnetic column mounting seat 310 attached to the pushing mechanism, and the pointer 120 is located at the zero position when the spring 330 is located at the balance position. The pushing mechanism comprises a cover plate 130 located at the opening end of the installation blind hole 210, a rubber pad 340 used for plugging the installation blind hole 210 is arranged between the cover plate 130 and the differential pressure gauge body 110, and a boss 350 used for pushing the second magnetic member is formed at the position, corresponding to the installation blind hole 210, of the rubber pad 340. The air inlet mechanism comprises a first air inlet mechanism and a second air inlet mechanism which are used for being connected with different external air sources. The first air inlet mechanism has a first air inlet flow passage 3130, and the first air inlet flow passage 3130 is disposed at the cover plate 130. The second intake mechanism has a second intake runner 3140, and the second intake runner 3140 is provided at the differential pressure gauge body 110. First intake runner 3130 and second intake runner 3140 are located at both sides of boss 350, respectively.
The first air inlet mechanism comprises a first air inlet through hole 370 correspondingly arranged at the differential pressure gauge body 110 and a cover plate through hole 360 correspondingly arranged at the cover plate 130, and a half-tooth bolt 390 is arranged at the first air inlet through hole 370 and the corresponding cover plate through hole 360; first air inlet blind hole 3110 is established at half tooth bolt 390 middle part, and first through-hole 3120 is established to half tooth bolt 390 lateral wall, forms first air inlet gap between half tooth bolt 390 outer wall and the first through-hole 370 inner wall that admits air, and first air inlet blind hole 3110, first through-hole 3120, first air inlet gap and first air inlet duct 3130 communicate in proper order.
The second air inlet mechanism comprises a second air inlet through hole 380 correspondingly arranged at the differential pressure gauge body 110 and another cover plate through hole 360 correspondingly arranged at the cover plate 130, and the second air inlet through hole 380 and the corresponding cover plate through hole 360 are provided with another half of threaded bolt 390; the middle of the other half of the threaded bolts 390 is provided with a second air inlet blind hole 3150, the side wall of the other half of the threaded bolts 390 is provided with a second communication port 3160, a second air inlet gap is formed between the outer wall of the other half of the threaded bolts 390 and the inner wall of the second air inlet through hole 380, and the second air inlet blind hole 3150, the second communication port 3160, the second air inlet gap and the second air inlet channel 3140 are sequentially communicated.
Sealing structures are arranged between the two ends of the half-tooth bolt 390 and the differential pressure gauge body 110 and the cover plate 130. Sealing structures are arranged between two ends of the other half tooth bolt 390 and the differential pressure gauge body 110 and the cover plate 130. In the present embodiment, in order to seal the two half bolts with the pressure difference gauge body 110 and the cover plate 130, seal rings 3100 are provided at both ends of the half bolt 390.
When the magnetic pressure difference gauge in this embodiment is used, a high-pressure external source gas is connected to the first air inlet blind hole 3110 of the half-tooth bolt 390 in the first air inlet through hole 370, a high-pressure external source gas enters the first air inlet gap from the first air inlet blind hole 3110 and the first communication hole 3120, and the high-pressure source gas entering the first air inlet gap enters the gap between the cover plate 130 and the rubber pad 340 through the first air inlet flow passage 3130; the low-pressure external source gas is connected with the second air inlet blind hole 3150 in the half-tooth bolt 390 in the second air inlet through hole 380, the low-pressure external source gas enters the second air inlet gap from the second air inlet blind hole 3150 and the second communication port 3160, the low-pressure source gas entering the second air inlet gap enters the mounting blind hole 210 through the second air inlet channel 3170, due to the external high-pressure source gas and the external low-pressure source gas existing at the two sides of the rubber pad 340, the bulge 350 bulges towards the spring end under the action of the pressure difference to push the magnetic pillar 320 on the magnetic pillar mounting seat 310 to move towards the spring 330 end, and the magnetic ring 250 is driven to rotate by the movement of the magnetic pillar 320, so that the pointer 120 is driven to rotate to display the pressure difference between the high-pressure source gas and the low-pressure source gas.
The magnetic differential pressure gauge in the embodiment can measure the differential pressure between two air sources more stably by the arrangement of the pointer assembly, the pushing mechanism and the air inlet mechanism, and compared with a common 2000 series micro differential pressure gauge in the market, the magnetic differential pressure gauge further has the characteristics of simple structure and convenience in manufacturing.
Through the arrangement of the first magnetic part and the second magnetic part, when the protruding part 350 moves towards the end of the spring 330, the magnetic column 320 on the second magnetic part moves to drive the magnetic ring 250 on the first magnetic part to rotate, so that the detection of the pressure difference is realized more simply and conveniently.
Through the arrangement of the pushing mechanism structure, the magnetic column mounting seat 310 can be pushed to move by the protrusion of the protrusion 350, and the magnetic column 320 is driven to move by the movement of the magnetic column mounting seat 310, so that the magnetic column 320 is preferably driven.
Through the arrangement of the first air inlet mechanism and the second air inlet mechanism, the high-pressure air source and the low-pressure air source can enter the differential pressure gauge body 110 from different ends respectively.
Wherein, the structure setting of first air inlet mechanism can make during external high pressurized air source loops through first air inlet blind hole 3110, first through-connection port 3120, first air inlet clearance and first air inlet flow way 3130 get into the gap between apron 130 and the rubber pad 340 to the realization of preferred high pressurized air source's drum into.
The second air inlet mechanism is structurally arranged, so that an external low-pressure air source can sequentially enter the installation blind hole 210 through the second air inlet blind hole 3150, the second communication port 3160, the second air inlet gap and the second air inlet flow channel 3170, and the low-pressure air source is blown in better.
By the arrangement of the sealing structures arranged between the two half-thread bolts 390 and the differential pressure gauge body 110 and the cover plate 130, the sealing performance between the half-thread bolts 390 and the first air inlet through hole 370, the second air inlet through hole 380 and the cover plate through hole 360 can be improved, so that the leakage of air is avoided, and the stability of the magnetic differential pressure gauge in use is improved.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The magnetic pressure difference meter is characterized in that: the pressure difference meter comprises a pressure difference meter body (110), wherein a rotatable pointer assembly is arranged at the pressure difference meter body (110), and a first magnetic piece is arranged at the pointer assembly; a second magnetic part capable of sliding is further arranged at the pressure difference meter body (110), and the second magnetic part is used for being matched with the first magnetic part to realize the rotation of the pointer assembly; the pressure difference meter body (110) is also provided with a pushing mechanism, and both sides of the pushing mechanism along the running direction of the pushing mechanism are provided with air inlet mechanisms for connecting external air sources; the pushing mechanism is used for moving from the high-pressure side to the low-pressure side when pressure difference is generated between the two sides, and is used for driving the second magnetic piece to move.
2. The magnetic pressure differential gauge of claim 1, wherein: the pressure difference meter body (110) is provided with a blind mounting hole (210) and a through mounting hole (220) which are perpendicular to each other in the axial direction, and the inner walls of the two ends of the through mounting hole (220) along the axial direction are expanded outwards to form a magnetic ring mounting groove (230); the pointer assembly is provided with a rotating rod (240) which is rotatably arranged in the installation through hole (220) and a pointer (120) which is arranged at the end part of the rotating rod (240), the first magnetic part comprises a magnetic ring (250) which is rotatably arranged at a magnetic ring installation groove (230), and the magnetic ring (250) is fixedly connected with the rotating rod (240);
the second magnetic part comprises a magnetic column mounting seat (310) which is slidably arranged in the mounting blind hole (210), and a magnetic column (320) which is used for driving the magnetic ring (250) to rotate is arranged at the position of the magnetic column mounting seat (310); a spring (330) used for keeping the magnetic column mounting seat (310) attached to the pushing mechanism is arranged in the mounting blind hole (210), and the pointer (120) is located at a return-to-zero position when the spring (330) is located at a balance position.
3. The magnetic pressure differential gauge of claim 2, wherein: the pushing mechanism comprises a cover plate (130) located at the opening end of the installation blind hole (210), a rubber pad (340) used for plugging the installation blind hole (210) is arranged between the cover plate (130) and the differential pressure gauge body (110), and a protruding portion (350) used for pushing the second magnetic piece is formed at the position, corresponding to the installation blind hole (210), of the rubber pad (340).
4. The magnetic pressure differential gauge of claim 3, wherein: the air inlet mechanism comprises a first air inlet mechanism and a second air inlet mechanism which are used for connecting different external air sources; the first intake mechanism has a first intake runner (3130), the second intake mechanism has a second intake runner (3140), and the first intake runner (3130) and the second intake runner (3140) are located at both sides of the boss (350), respectively.
5. The magnetic pressure differential gauge of claim 4, wherein: the first air inlet mechanism comprises a first air inlet through hole (370) correspondingly arranged at the differential pressure gauge body (110) and a cover plate through hole (360) correspondingly arranged at the cover plate (130), and a half-tooth bolt (390) is arranged at the first air inlet through hole (370) and the corresponding cover plate through hole (360); first air inlet blind hole (3110) are established at half tooth bolt (390) middle part, and first intercommunication mouth (3120) are established to half tooth bolt (390) lateral wall, and form first air inlet gap between half tooth bolt (390) outer wall and first air inlet through hole (370) inner wall, and first air inlet blind hole (3110), first intercommunication mouth (3120), first air inlet gap and first air inlet channel (3130) communicate in proper order.
6. The magnetic pressure differential gauge of claim 5, wherein: the first intake runner (3130) is provided at the cover plate (130).
7. The magnetic pressure differential gauge of claim 5, wherein: sealing structures are arranged between two ends of the half-tooth bolt (390) and the differential pressure gauge body (110) and the cover plate (130).
8. The magnetic pressure differential gauge of claim 4, wherein: the second air inlet mechanism comprises a second air inlet through hole (380) correspondingly arranged at the differential pressure gauge body (110) and another cover plate through hole (360) correspondingly arranged at the cover plate (130), and the second air inlet through hole (380) and the corresponding cover plate through hole (360) are provided with the other half of tooth bolt (390); the middle of the other half of the threaded bolts (390) is provided with a second air inlet blind hole (3150), the side wall of the other half of the threaded bolts (390) is provided with a second communicating opening (3160), a second air inlet gap is formed between the outer wall of the other half of the threaded bolts (390) and the inner wall of the second air inlet through hole (380), and the second air inlet blind hole (3150), the second communicating opening (3160), the second air inlet gap and the second air inlet channel (3140) are sequentially communicated.
9. The magnetic pressure differential gauge of claim 8, wherein: the second intake runner (3140) is provided at the differential pressure gauge body (110).
10. The magnetic pressure differential gauge of claim 8, wherein: sealing structures are arranged between the two ends of the other half tooth bolt (390) and the differential pressure gauge body (110) and the cover plate (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122878300.8U CN216116491U (en) | 2021-11-23 | 2021-11-23 | Magnetic pressure difference meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122878300.8U CN216116491U (en) | 2021-11-23 | 2021-11-23 | Magnetic pressure difference meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216116491U true CN216116491U (en) | 2022-03-22 |
Family
ID=80718350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122878300.8U Active CN216116491U (en) | 2021-11-23 | 2021-11-23 | Magnetic pressure difference meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216116491U (en) |
-
2021
- 2021-11-23 CN CN202122878300.8U patent/CN216116491U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018068585A1 (en) | Novel electronic expansion valve | |
| CN216116491U (en) | Magnetic pressure difference meter | |
| CN1979098A (en) | Flow meter with built in micro differential pressure sensor | |
| CN105953849A (en) | Natural gas flow measurer | |
| CN202471748U (en) | Air quantity cover capable of measuring wind speed | |
| CN201145593Y (en) | Multi-larynx type hole plate | |
| CN106092220A (en) | Orifice flowmeter | |
| CN217820238U (en) | Novel initiative breathing type electron nose | |
| CN209084031U (en) | A kind of air inlet adjustable valve and pneumatic-to-current converter | |
| CN204085584U (en) | A kind of wind quantity test device | |
| CN207763893U (en) | A kind of air inlet mechanical structure for airtight somascope | |
| CN207180785U (en) | A kind of chemical industry volumetric flowmeter | |
| CN203310453U (en) | Multifunctional flow measuring instrument | |
| CN112546367A (en) | Differential pressure type flow sensor and breathing machine | |
| CN207832371U (en) | Laryngeal mask gasbag pressure shows table | |
| CN212904967U (en) | Differential pressure type wind speed sensor | |
| CN101038193A (en) | Compound water meter | |
| CN211042359U (en) | Gas meter smooth in operation | |
| CN219809478U (en) | Novel valve body | |
| CN209230701U (en) | A kind of side plate of gas meter, flow meter gas roots flowmeter | |
| CN216483664U (en) | Differential pressure gauge with corrugated pipe | |
| CN207487908U (en) | Durable test tooling | |
| CN217765094U (en) | Welding throttling type flowmeter | |
| CN219712496U (en) | Valve cylinder mechanism | |
| CN103308104A (en) | Build-in balance flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |