CN212721951U - Dual-output pressure transmitter and air tightness detection device - Google Patents
Dual-output pressure transmitter and air tightness detection device Download PDFInfo
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- CN212721951U CN212721951U CN202021842146.8U CN202021842146U CN212721951U CN 212721951 U CN212721951 U CN 212721951U CN 202021842146 U CN202021842146 U CN 202021842146U CN 212721951 U CN212721951 U CN 212721951U
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Abstract
The utility model discloses a dual output pressure transmitter and gas tightness detection device, wherein, dual output pressure transmitter includes the base, is equipped with the first pore on the base, be equipped with pressure sensor in the first pore, pressure sensor with the circuit board electricity that is equipped with on the base is connected, still be equipped with pipe cap, with the second pore that the first pore is parallel to on the base; the pipe cap is connected with a joint, a pressure conversion sleeve is fixed in the pipe cap, a piston capable of sliding along the axial direction of the pressure conversion sleeve is arranged in the pressure conversion sleeve, a proportional electronic spring abutted against the joint is arranged at the output end of the piston, and the proportional electronic spring is electrically connected with the circuit board; the output end of the second duct is connected with an air duct, and the output end of the air duct extends into the pressure conversion sleeve. The utility model discloses dual output pressure transmitter utilizes gas to promote the piston motion and through proportion electronic spring with pressure signal output, is favorable to revising the pressure precision.
Description
Technical Field
The utility model relates to a pressure transmitter especially relates to a dual output pressure transmitter and gas tightness detection device.
Background
A pressure transmitter is a device that converts pressure into a pneumatic signal or an electric signal for control and remote transmission. It can convert the physical pressure parameters of gas, liquid, etc. sensed by the load cell sensor into standard electric signals (such as 4-20mADC, etc.) for secondary instruments such as indication alarm, recorder, regulator, etc. to measure, indicate and regulate the process.
However, in the conventional pressure transmitter, for example, chinese patent with patent application number "202010464707.3" and "a pressure transmitter with adjustable pressure sensor" all use the pressure sensor to measure pressure and then output the pressure signal, and the output pressure signal is based on the sensing of the pressure sensor, and there is no other comparison data, so that the accuracy cannot be compared and cannot be determined.
Those skilled in the art have therefore endeavored to develop a pressure transmitter that can output two pressure signals.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a dual output pressure transmitter.
In order to achieve the purpose, the utility model provides a dual-output pressure transmitter, which comprises a base, wherein a first pore channel is arranged on the base, a pressure sensor is arranged in the first pore channel, the pressure sensor is electrically connected with a circuit board arranged on the base, and a pipe cap and a second pore channel parallel to the first pore channel are also arranged on the base;
the pipe cap is connected with a joint, a pressure conversion sleeve is fixed in the pipe cap, a piston capable of sliding along the axial direction of the pressure conversion sleeve is arranged in the pressure conversion sleeve, a proportional electronic spring abutted against the joint is arranged at the output end of the piston, and the proportional electronic spring is electrically connected with the circuit board;
the output end of the second pore passage is connected with an air duct, the output end of the air duct extends into the pressure conversion sleeve, and the axial leads of the air duct, the pressure conversion sleeve and the piston are parallel or coincident.
Preferably, the base is further provided with a support sealing sleeve, one end of the support sealing sleeve extends into the pipe cap and is in clearance fit with the pipe cap, one end of the support sealing sleeve extending into the pipe cap is provided with a branch hole for the air duct to pass through, and the other end of the support sealing sleeve is covered at the joint of the second hole and the air duct and is used for sealing the joint of the second hole and the air duct.
Preferably, a sealing ring is arranged between the piston and the pressure conversion sleeve.
Preferably, the second duct includes a first section, a second section and a third section which are sequentially arranged and perpendicular to each other, and the second section of the second duct is provided with a detachable sealing jackscrew.
Preferably, the pressure sensor is fixed to the first hole by a locking screw.
The utility model also provides an air tightness detection device, including foretell dual output pressure transmitter.
The utility model has the advantages that: the utility model discloses dual output pressure transmitter utilizes pressure sensor to measure and exports again behind the gas pressure on the one hand, and on the other hand utilizes gas to promote the piston motion and export pressure signal through proportion electronic spring, has realized pressure signal's dual output, and two output signal can contrast each other, are favorable to revising the pressure precision.
Drawings
Fig. 1 is a schematic diagram of a dual-output pressure transmitter according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the dual-output pressure transmitter includes a base 100, a first hole 110 is provided on the base 100, a pressure sensor 200 is provided in the first hole 110, the pressure sensor 200 is electrically connected to a circuit board 300 provided on the base 100, and the base 100 is further provided with a cap 400 and a second hole 120 parallel to the first hole 110;
the pipe cap 400 is connected with a connector 500, a pressure conversion sleeve 600 is fixed in the pipe cap 400, a piston 700 capable of sliding along the axial direction of the pressure conversion sleeve 600 is arranged in the pressure conversion sleeve 600, a proportional electronic spring 800 abutted against the connector 500 is arranged at the output end of the piston 700, and the proportional electronic spring 800 is electrically connected with the circuit board 300; in this embodiment, the linker 500 is a hesmann linker.
The output end of the second duct 120 is connected with an air duct 900, the output end of the air duct 900 extends into the pressure conversion sleeve 600, and the axial leads of the air duct 900, the pressure conversion sleeve 600 and the piston 700 are parallel. In other embodiments, the axes of the air tube 900, the pressure conversion sleeve 600, and the piston 700 may coincide.
In this embodiment, the base 100 is further provided with a support sealing sleeve 130, one end of the support sealing sleeve 130 extends into the tube cap 400 and is in clearance fit with the tube cap 400, one end of the support sealing sleeve 130 extending into the tube cap 400 is provided with a branch hole for the air duct 900 to pass through, and the other end of the support sealing sleeve 130 is covered at the joint of the second duct 120 and the air duct 900, so as to seal the joint of the second duct 120 and the air duct 900.
In this embodiment, a sealing ring 710 is disposed between the piston 700 and the pressure conversion sleeve 600. It is advantageous to ensure a seal between the piston 700 and the pressure conversion sleeve 600.
In this embodiment, the second duct 120 includes a first section 121, a second section 122, and a third section 123 that are sequentially disposed and perpendicular to each other, and a detachable sealing top thread 124 is disposed on the second section 122 of the second duct 120.
In this embodiment, the pressure sensor 200 is fixed to the first duct 110 by a locking screw 210.
The double-output pressure transmitter can be applied to an air tightness detection device.
When the dual-output pressure transmitter works, gas is respectively led in from the first duct 110 and the second duct 120; the gas entering the first duct 110 transmits a pressure signal to the circuit board 300 through the pressure sensor 200; the gas entering from the second channel 120 sequentially passes through the first segment 121, the second segment 122, the third segment 123 and the gas guide tube 900 of the second channel and then enters the pressure conversion sleeve 600, and then pushes the piston 700 to move rightwards, and the pressure signal is transmitted to the circuit board 300 through the proportional electronic spring 800, so that double output of the pressure signal is realized.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. A double-output pressure transmitter comprises a base (100), wherein a first pore passage (110) is arranged on the base (100), a pressure sensor (200) is arranged in the first pore passage (110), and the pressure sensor (200) is electrically connected with a circuit board (300) arranged on the base (100), and the double-output pressure transmitter is characterized in that a pipe cap (400) and a second pore passage (120) parallel to the first pore passage (110) are also arranged on the base (100);
the pipe cap (400) is connected with a connector (500), a pressure conversion sleeve (600) is fixed in the pipe cap (400), a piston (700) capable of sliding along the axial direction of the pressure conversion sleeve (600) is arranged in the pressure conversion sleeve (600), the output end of the piston (700) is provided with a proportional electronic spring (800) abutted against the connector (500), and the proportional electronic spring (800) is electrically connected with the circuit board (300);
the output end of the second duct (120) is connected with an air duct (900), the output end of the air duct (900) extends into the pressure conversion sleeve (600), and the axial leads of the air duct (900), the pressure conversion sleeve (600) and the piston (700) are parallel or coincident.
2. The dual-output pressure transmitter of claim 1, wherein the base (100) is further provided with a support sealing sleeve (130), one end of the support sealing sleeve (130) extends into the pipe cap (400) and is in clearance fit with the pipe cap, one end of the support sealing sleeve (130) extending into the pipe cap (400) is provided with a branch hole for the air duct (900) to pass through, and the other end of the support sealing sleeve (130) is covered at a joint of the second duct (120) and the air duct (900) and is used for sealing the joint of the second duct (120) and the air duct (900).
3. The dual output pressure transmitter of claim 1, wherein a seal (710) is disposed between the piston (700) and the pressure transition sleeve (600).
4. The dual-output pressure transmitter of claim 1, wherein the second bore (120) includes a first section (121), a second section (122) and a third section (123) which are sequentially arranged and perpendicular to each other, and the second section (122) of the second bore (120) is provided with a detachable sealing jackscrew (124).
5. The dual output pressure transmitter of claim 1, wherein the pressure sensor (200) is secured to the first bore (110) by a locking screw (210).
6. An air-tightness detection device, characterized by comprising a dual-output pressure transmitter according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021842146.8U CN212721951U (en) | 2020-08-28 | 2020-08-28 | Dual-output pressure transmitter and air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021842146.8U CN212721951U (en) | 2020-08-28 | 2020-08-28 | Dual-output pressure transmitter and air tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212721951U true CN212721951U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021842146.8U Active CN212721951U (en) | 2020-08-28 | 2020-08-28 | Dual-output pressure transmitter and air tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212721951U (en) |
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2020
- 2020-08-28 CN CN202021842146.8U patent/CN212721951U/en active Active
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