CN212779706U - Precision pressure gauge - Google Patents
Precision pressure gauge Download PDFInfo
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- CN212779706U CN212779706U CN202021630802.8U CN202021630802U CN212779706U CN 212779706 U CN212779706 U CN 212779706U CN 202021630802 U CN202021630802 U CN 202021630802U CN 212779706 U CN212779706 U CN 212779706U
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Abstract
The utility model discloses an accurate pressure gauge, which relates to the technical field of pressure gauges and comprises a connecting pipe, a stop valve, an adjusting component, a pressure gauge component and a calibration component; the utility model discloses a pneumatic pressure regulating device, including connecting pipe, manometer subassembly, calibration subassembly, adjusting assembly, adjusting cylinder, pressure measuring instrument, pressure regulating assembly, pressure.
Description
Technical Field
The utility model relates to a manometer technical field especially relates to an accurate manometer.
Background
The pressure gauge is a meter which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, is very commonly applied and almost extends to all the fields of industrial processes and scientific researches. The method is widely available in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance plants and shops and the like. Especially in the industrial process control and technical measurement process, the mechanical pressure gauge is more and more widely applied due to the characteristics of high mechanical strength, convenient production and the like of an elastic sensitive element of the mechanical pressure gauge;
in the manometer use, the manometer can lead to the reading inaccurate under the abnormal environment, produces the error easily, and when the calibration to the manometer, outside pressure calibration has the error, and difficult calibration influences the manometer normal use.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem lie in providing an accurate pressure gauge, realize the adjustment to the internal gas pressure of connecting pipe, the calibration operation of the manometer of being convenient for need not carry out the auxiliary operation through the pressure measurement instrument, the operation of adjusting the pressure of carrying on of more directly perceived accuracy.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a precision pressure gauge comprises a connecting pipe, a stop valve, an adjusting assembly, a pressure gauge assembly and a calibrating assembly; a pressure gauge assembly is mounted at one end of the top side of the connecting pipe, a calibration assembly is mounted on the pressure gauge assembly, a stop valve is mounted on the top side of one end of the connecting pipe, and the adjusting assembly is mounted on the connecting pipe;
the adjusting assembly comprises an adjusting inflator, a movable plug and an adjusting cylinder; the adjustment inflator and the setting of adjustment cylinder are side by side, the inside of adjustment inflator is provided with the activity stopper, the rigid coupling has reset spring between the bottom lateral wall of activity stopper and adjustment inflator, the rigid coupling has the gauge needle on the adjustment inflator, the internally mounted of adjustment cylinder has the location piston, the top side at the location piston is installed through the bearing cooperation in the bottom of extrusion lead screw, the extrusion lead screw is worn to establish in the top lateral wall of adjustment cylinder through the screw-thread fit.
The upper end and the lower end of the adjusting inflator and the upper end and the lower end of the adjusting cylinder are respectively communicated through a communicating pipe.
And the bottom of the adjusting air cylinder is provided with a connecting hole which is communicated with the connecting pipe.
The pressure gauge component comprises a movable groove, an extrusion spring, a pointer, a guide plate and a dial plate, the movable groove is formed in the dial plate, the guide plate is arranged in the movable groove, the extrusion spring is arranged in the movable groove, one end of the extrusion spring is fixed to one end of the guide plate, one end of the pointer is installed at the eccentric position of the dial plate through pin fitting, and the other end of the pointer is fixed to the guide plate.
The calibration assembly comprises a calibration piston, a calibration air cylinder and a calibration screw rod, the calibration piston is arranged in the calibration air cylinder, the calibration screw rod penetrates through the end part of the calibration air cylinder through thread fit, and one end of the calibration screw rod is welded on the calibration piston.
One end of the movable groove is communicated with the calibration air cylinder through a guide pipe, and the other end of the movable groove is communicated with the connecting pipe through a guide pipe.
The utility model has the advantages that:
the utility model discloses in, through setting up adjusting part, through rotatory extrusion lead screw, realize that the positioning piston slides in the adjustment cylinder, through the cooperation of two communicating pipes from top to bottom, can change the atmospheric pressure at both ends about the adjustment inflator, can change the position of activity stopper, realize the adjustment to the atmospheric pressure in the connecting pipe, the calibration operation of the manometer of being convenient for need not carry out the auxiliary operation through the pressure measurement instrument, the more audio-visual accurate pressure regulating operation that carries on;
through setting up the calibration subassembly, through rotatory calibration lead screw, can change the atmospheric pressure of calibration inflator under the cooperation of calibration piston, through filling gas to the activity groove, with the initial point of deflector 44 propelling movement only, realize the calibration, better use.
Drawings
FIG. 1 is an overall three-dimensional structure diagram of the middle precision pressure gauge of the present invention;
FIG. 2 is the overall internal structure diagram of the middle precision pressure gauge of the present invention;
FIG. 3 is a structural diagram of the whole middle pressure gauge assembly of the middle precision pressure gauge of the present invention;
illustration of the drawings:
1. a connecting pipe; 2. a stop valve; 3. an adjustment assembly; 4. a pressure gauge assembly; 5. calibrating the component; 31. a gauge needle; 32. adjusting the air cylinder; 33. a movable plug; 34. a communicating pipe; 35. extruding the screw rod; 36. adjusting the cylinder; 37. a return spring; 38. positioning the piston; 41. a movable groove; 42. a compression spring; 43. a pointer; 44. a guide plate; 45. a dial plate; 51. calibrating the piston; 52. calibrating the air cylinder; 53. and (5) calibrating the screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Specific examples are given below.
Referring to fig. 1 and 3, the precision pressure gauge comprises a connecting pipe 1, a stop valve 2, an adjusting assembly 3, a pressure gauge assembly 4 and a calibration assembly 5; a pressure gauge assembly 4 is installed at one end of the top side of the connecting pipe 1, a calibration assembly 5 is installed on the pressure gauge assembly 4, a stop valve 2 is installed on the top side of one end of the connecting pipe 1, and an adjusting assembly 3 is installed on the connecting pipe 1;
the adjusting assembly 3 comprises an adjusting air cylinder 32, a movable plug 33 and an adjusting air cylinder 36; the adjustment inflator 32 and the setting of adjustment cylinder 36 are side by side, the inside of adjustment inflator 32 is provided with movable stopper 33, the rigid coupling has reset spring 37 between the bottom lateral wall of movable stopper 33 and adjustment inflator 32, the rigid coupling has gauge needle 31 on the adjustment inflator 32, the internally mounted of adjustment cylinder 36 has location piston 38, the top side at location piston 38 is installed through the bearing cooperation in the bottom of extrusion lead screw 35, extrusion lead screw 35 wears to establish in the top lateral wall of adjustment cylinder 36 through screw-thread fit.
As an embodiment of the utility model, both ends are respectively through communicating pipe 34 intercommunication about adjustment inflator 32 and the adjustment cylinder 36, the bottom of adjustment inflator 32 is provided with the connecting hole, connecting hole and connecting pipe 1 intercommunication, in operation, when the barometer adjustment, the position of scalar needle 31 is the standard atmospheric pressure position, when atmospheric pressure in connecting pipe 1 is inaccurate, when calibrating the barometer, through rotatory extrusion lead screw 35, realize that location piston 38 slides in adjustment cylinder 36, through the cooperation of two upper and lower communicating pipes 34, can change the atmospheric pressure at both ends about the adjustment inflator 32, can change the position of activity stopper 33, realize the adjustment to the atmospheric pressure in connecting pipe 1, the calibration operation of the manometer of being convenient for, need not carry out the auxiliary operation through the pressure measurement instrument, more directly perceived accurate pressure regulating operation carries out.
As an embodiment of the present invention, the pressure gauge component 4 includes movable groove 41, extrusion spring 42, pointer 43, deflector 44 and dial 45, movable groove 41 has been seted up to the inside of dial 45, the inside of movable groove 41 is provided with deflector 44, the inside of movable groove 41 is provided with extrusion spring 42, deflector 44 one end is fixed in deflector 42 one end, the eccentric position at dial 45 is installed through the pin cooperation to the one end of pointer 43, the other end of pointer 43 is fixed on deflector 44, and in operation, pointer 43 when rotatory, slides in movable groove 41 through deflector 44, and when the atmospheric pressure of movable groove 41 rose, deflector 44 slided along movable groove 41, through the calibrated scale of the directional dial 45 of pointer 43, can show pressure.
As an embodiment of the utility model, calibration subassembly 5 includes calibration piston 51, calibration inflator 52 and calibration lead screw 53, the inside of calibration inflator 52 is provided with calibration piston 51, calibration lead screw 53 wears to establish the tip at calibration inflator 52 through screw-thread fit, the one end welding of calibration lead screw 53 is on calibration piston 51, the one end and the calibration inflator 52 of activity groove 41 pass through the pipe intercommunication, the other end of activity groove 41 passes through pipe and connecting pipe 1 intercommunication, and the during operation, after the manometer uses, can lead to the atmospheric pressure of activity groove 41 one side to be low partially, need supply the air entrainment, through rotatory calibration lead screw 53, can be under calibration piston 51's cooperation, can change calibration inflator 52's atmospheric pressure, through aerating activity groove 41, with deflector 44 propelling movement only initial point, realize the calibration, better use.
The working principle is as follows: when the air pressure gauge is adjusted, the position of the scalar needle 31 is a standard air pressure position, when the air pressure in the connecting pipe 1 is inaccurate, when the air pressure gauge is calibrated, the positioning piston 38 slides in the adjusting cylinder 36 by rotating the extrusion screw 35, the air pressure at the upper end and the lower end of the adjusting air cylinder 32 can be changed by matching the upper communicating pipe 34 and the lower communicating pipe 34, the position of the movable plug 33 can be changed, the adjustment of the air pressure in the connecting pipe 1 is realized, the calibration operation of the pressure gauge is convenient, the auxiliary operation through a pressure measuring instrument is not needed, the pressure adjusting operation is more intuitive and accurate, when the pointer 43 rotates, the pointer 44 slides in the movable groove 41, when the air pressure in the movable groove 41 is increased, the guide plate 44 slides along the movable groove 41, the pointer 43 points to the dial of the dial plate 45, the pressure can be displayed, after the pressure gauge is used, the air pressure on one side, the gas is required to be supplemented, the gas pressure of the calibration gas cylinder 52 can be changed under the matching of the calibration piston 51 by rotating the calibration screw rod 53, and the guide plate 44 is pushed to only the initial point by filling gas into the movable groove 41, so that calibration is realized, and the use is better.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A precision pressure gauge is characterized by comprising a connecting pipe (1), a stop valve (2), an adjusting component (3), a pressure gauge component (4) and a calibration component (5); a pressure gauge assembly (4) is installed at one end of the top side of the connecting pipe (1), a calibration assembly (5) is installed on the pressure gauge assembly (4), a stop valve (2) is installed on the top side of one end of the connecting pipe (1), and the adjusting assembly (3) is installed on the connecting pipe (1);
the adjusting component (3) comprises an adjusting air cylinder (32), a movable plug (33) and an adjusting air cylinder (36); adjustment inflator (32) and adjustment cylinder (36) set up side by side, the inside of adjustment inflator (32) is provided with movable stopper (33), the rigid coupling has reset spring (37) between the bottom lateral wall of movable stopper (33) and adjustment inflator (32), the rigid coupling has gauge needle (31) on adjustment inflator (32), the internally mounted of adjustment cylinder (36) has location piston (38), and the top side at location piston (38) is installed through the bearing cooperation in the bottom of extrusion lead screw (35), extrusion lead screw (35) are worn to establish in the top lateral wall of adjustment cylinder (36) through screw-thread fit.
2. The precision pressure gauge according to claim 1, wherein the upper and lower ends of the adjustment cylinder (36) and the adjustment cylinder (32) are respectively connected through a connection pipe (34).
3. The precision pressure gauge according to claim 1, wherein the bottom of the adjusting cylinder (32) is provided with a connection hole, which is communicated with the connection pipe (1).
4. The precision pressure gauge according to claim 1, wherein the pressure gauge assembly (4) comprises a movable groove (41), an extrusion spring (42), a pointer (43), a guide plate (44) and a dial plate (45), the movable groove (41) is formed in the dial plate (45), the guide plate (44) is arranged in the movable groove (41), the extrusion spring (42) is arranged in the movable groove (41), one end of the extrusion spring (42) is fixed at one end of the guide plate (44), one end of the pointer (43) is installed at an eccentric position of the dial plate (45) through pin fitting, and the other end of the pointer (43) is fixed on the guide plate (44).
5. The precision pressure gauge according to claim 4, wherein the calibration assembly (5) comprises a calibration piston (51), a calibration cylinder (52) and a calibration screw rod (53), the calibration cylinder (52) is internally provided with the calibration piston (51), the calibration screw rod (53) is arranged at the end of the calibration cylinder (52) in a threaded fit manner, and one end of the calibration screw rod (53) is welded on the calibration piston (51).
6. A precision pressure gauge according to claim 4, wherein one end of the movable groove (41) is connected to the calibration cylinder (52) through a guide tube, and the other end of the movable groove (41) is connected to the connection tube (1) through a guide tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021630802.8U CN212779706U (en) | 2020-08-07 | 2020-08-07 | Precision pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021630802.8U CN212779706U (en) | 2020-08-07 | 2020-08-07 | Precision pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212779706U true CN212779706U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021630802.8U Active CN212779706U (en) | 2020-08-07 | 2020-08-07 | Precision pressure gauge |
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| Country | Link |
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| CN (1) | CN212779706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115176709A (en) * | 2022-07-01 | 2022-10-14 | 扬州大学 | Cowshed air interchanger |
-
2020
- 2020-08-07 CN CN202021630802.8U patent/CN212779706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115176709A (en) * | 2022-07-01 | 2022-10-14 | 扬州大学 | Cowshed air interchanger |
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