CN217930420U - Pressure sensor connecting piece and mounting structure thereof - Google Patents
Pressure sensor connecting piece and mounting structure thereof Download PDFInfo
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- CN217930420U CN217930420U CN202222227395.1U CN202222227395U CN217930420U CN 217930420 U CN217930420 U CN 217930420U CN 202222227395 U CN202222227395 U CN 202222227395U CN 217930420 U CN217930420 U CN 217930420U
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Abstract
The utility model discloses a pressure sensor connecting piece, including getting the pipe, the both ends of getting the pipe are provided with sealing connector, characterized by: the sealing connector comprises a clamping sleeve and a locking nut, and the clamping sleeve is fixedly connected to the outer side of the end part of the pressure sampling pipe; the locking nut is provided with an end cap part and a sleeve connecting part; the end cover part is movably sleeved on the pressure taking pipe, a through hole for the pressure taking pipe to penetrate through is formed in the middle of the end cover part, and the end face of the inner side, located around the through hole, of the end cover part is abutted with the surface of the top of the clamping sleeve to form a sealing matching surface; the circumference edge of end cap portion extends the shaping along the axial has the muffjoint portion, and the muffjoint portion has the internal thread, has the annular cavity that supplies outside pressure measurement to connect to insert and realize threaded connection between the medial surface of muffjoint portion and the lateral surface of cutting ferrule. The utility model also discloses a mounting structure of pressure sensor connecting piece. The utility model has the advantages of more simplified structure, easy production, processing and manufacturing and more convenient use.
Description
Technical Field
The utility model belongs to the flowmeter field, concretely relates to supporting connection structure between pressure sensor and the flowmeter who uses on disconnect-type volume correction appearance.
Background
The separated volume corrector can be used for being matched with a diaphragm gas meter, a turbine flowmeter or a waist wheel flowmeter for use, is provided with a built-in or external pressure sensor and a permanently connected temperature sensor, can correct the volume of the measured gas, compensates the measurement precision of the flowmeter in high and low temperature environments, and realizes data output (wired transmission or wireless remote transmission).
At present, as shown in publication No. CN204214502U, "a b-type pressure connector for vortex shedding flowmeter", in combination with the technical solution, the prior art still has the following disadvantages:
the pressure sensor on the disconnect-type volume correction appearance is connected through pressure connection pipe between the pressure measurement joint of flowmeter, but pressure connection pipe be the tubular metal resonator, often need pass through various bendings, connects through cutting ferrule, nut after the bending for connection structure between the pressure measurement joint of pressure sensor and flowmeter is comparatively complicated, and causes certain material waste. In addition, a sealing gasket is required to be arranged at a joint on the pressure sensor and is used for sealing; however, since the nut on the pressure connection pipe is fixedly connected to the pressure sampling pipe, the nut needs to rotate together with the sensor, which may cause the connection pipe to be distorted and deformed, and affect the reliability of the structure and the sealing.
Based on this, the applicant considers to design a pressure sensor connecting piece and a mounting structure thereof, wherein the structure is more simplified, and the use is more convenient.
Disclosure of Invention
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a pressure sensor connecting piece and mounting structure thereof which have more simplified structure and more convenient use.
In order to solve the technical problem, the utility model discloses a following technical scheme:
pressure sensor connecting piece, including getting the pressure pipe, the both ends of getting the pressure pipe are provided with sealing connector, its characterized in that: the sealing connector comprises a clamping sleeve and a locking nut, and the clamping sleeve is fixedly connected to the outer side of the end part of the pressure sampling pipe;
the locking nut is provided with an end cap part and a sleeve connecting part; the end cover part is movably sleeved on the pressure pipe, a through hole for the pressure pipe to penetrate through is formed in the middle of the end cover part, and the end face of the inner side, located around the through hole, of the end cover part is abutted against the surface of the top of the clamping sleeve to form a sealing matching surface;
the sleeve connecting part is formed on the circumferential edge of the end cover part in an axially extending mode and provided with internal threads, the sleeve connecting part is sleeved outside the clamping sleeve, and an annular cavity for inserting the external pressure measuring joint and achieving threaded connection is formed between the inner side face of the sleeve connecting part and the outer side face of the clamping sleeve.
Compared with the prior art, the utility model discloses the advantage that the pressure sensor connecting piece has is:
1. the whole structure is more simplified, and the production, processing and manufacturing are easy
Sealing connector among this technical scheme only contains two components at the cutting ferrule and the lock nut that the pressure pipe terminal surface set up of getting, and can rely on lock nut's end cap portion to be connected with the cooperation of cutting ferrule top surface and form the sealed fitting surface and realize hard sealing, subtracts the use that economizes sealed the pad, so when can realizing butt joint sealing, also can make overall structure more retrench, easily production manufacturing.
2. More convenient to use
When the pressure sensor connecting piece is used, the screw thread locking connection can be realized only by conveniently twisting the locking nut; in the process of twisting the locking nut, the pressure tapping pipe does not need to follow up, and the twisting deformation caused by follow-up is avoided, so that the reliability of thread locking between the locking nut and the pressure measuring joint can be ensured, and the reliability of sealing butt joint can be ensured.
The mounting structure of the pressure sensor connecting piece comprises pressure measuring joints which are respectively arranged on the flowmeter and the pressure sensor, and the pressure measuring joints are used for being in sealing butt joint with sealing joints on the pressure sensor connecting piece; the method is characterized in that: the pressure sensor connecting piece is the pressure sensor connecting piece;
the pressure measuring connector is provided with a tubular connecting part with an external thread, the tubular connecting part is used for being inserted into an annular cavity between the locking nut and the clamping sleeve and fixedly connected with the internal thread of the locking nut through the external thread, and the upper end of the tubular connecting part is tightly propped against the clamping sleeve, so that the end face of the inner side, located around the through hole, of the end cover part is propped against the top surface of the clamping sleeve, and a sealing matching surface is formed.
After the mounting structure of the pressure sensor connecting piece is adopted, the locking nut and the pressure measuring joint can be in threaded connection and sealed by rotating the locking nut, so that the pressure sampling pipe cannot be distorted and deformed in the connection process, and the sealing reliability of connection between the pressure sensor and the pressure measuring joint is better ensured.
Drawings
Fig. 1 is a schematic view of the installation structure of the pressure sensor connector of the present invention.
Fig. 2 is a schematic structural diagram of the pressure sensor connector of the present invention.
Fig. 3 is a cross-sectional view of the pressure sensor connector of the present invention.
Labeled as:
a waist wheel flowmeter
B pressure sensor
10 pressure sampling pipe
20, cutting sleeve: 201 sealing section, 202 insertion section
30, locking a nut: 301 end cap portion, 302 sleeve connection portion
40 sealing mating surface
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: as shown in fig. 1 to 3, the pressure sensor connector includes a pressure sampling pipe 10, two ends of the pressure sampling pipe 10 are provided with sealing connectors, each sealing connector includes a ferrule 20 and a lock nut 30, and the ferrules 20 are fixedly connected to the outer sides of the ends of the pressure sampling pipe 10;
the lock nut 30 has an end cap portion 301 and a sleeve coupling portion 302; the end cover part 301 is movably sleeved on the pressure pipe 10, a through hole for the pressure pipe 10 to penetrate through is formed in the middle of the end cover part 301, and the end face of the inner side of the end cover part 301, which is positioned around the through hole, abuts against the top surface of the clamping sleeve 20 to form a sealing matching surface 40;
the circumferential edge of the end cover part 301 is formed with the sleeve connecting part 302 in an axially extending manner, the sleeve connecting part 302 is provided with internal threads, the sleeve connecting part 302 is sleeved outside the clamping sleeve 20, and an annular cavity for inserting an external pressure measuring connector and realizing threaded connection is formed between the inner side surface of the sleeve connecting part 302 and the outer side surface of the clamping sleeve 20.
Wherein, the sealing matching surface is a conical surface.
Therefore, a larger sealing contact area can be obtained in a narrow space between the inner top of the locking nut 30 and the top of the clamping sleeve 20, and reliable and better hard sealing effect is realized.
Wherein, the outer side of the sleeve connecting part 302 is provided with an outer hexagon.
Thus, the locking nut 30 can be easily twisted by a wrench, and the convenience of detachment and locking can be improved.
The cutting sleeve 20 is straight and has a sealing section 201 and an insertion section 202 in the self axial direction, and a sealing matching surface on the cutting sleeve 20 is located at the top position of the sealing section 201; the outer diameter of the insertion section 202 is smaller than that of the sealing section 201, and the insertion section 202 is used for insertion and enables the outer side face of the insertion section 202 to be in sliding fit connection with the inner side face of an external pressure measuring joint.
After the structure of the cutting sleeve 20 is adopted, the structural strength of the cutting sleeve 20 can be improved; in the assembling process, the insertion section 202 of the clamping sleeve 20 is in contact connection after being inserted into the external pressure measuring connector, so that the axis of the clamping sleeve 20 (the insertion section 202) can be coincided and aligned with the axis of the external connector, accurate butt joint positioning between the pressure sensor connecting piece and the pressure measuring connector is realized, and the subsequent locking nut 30 is helped to be smoothly twisted to realize reliable connection.
The cutting sleeve 20 has lead angles at the radial outer edges of two axial end surfaces thereof; the outer end face of the ferrule 20 in the axial direction of the pressure tapping pipe 10 is flush with the end face of the pressure tapping pipe 10.
Therefore, the press fitting tool is designed to realize the press fitting operation between the clamping sleeve 20 and the pressure tapping pipe 10, so that the press fitting tool can be better suitable for pressure tapping modes with different structures, and efficient and reliable assembly between the clamping sleeve 20 and the pressure tapping pipe 10 is facilitated.
The ferrule 20 is made of an aluminum alloy material, and the locking nut 30 and the pressure tapping pipe 10 are made of a stainless steel material.
The cutting ferrule 20 that adopts the aluminum alloy material to make, the toughness of usable aluminum alloy material comes better realization and gets pressure equipment assembly (interference fit) between the pipe 10 to and ensure better that the cutting ferrule 20 inner wall is connected with getting closely laminating between the pipe 10 outer wall, guarantee the sealing reliability that the cutting ferrule 20 and get contact between the pipe 10 and be connected.
The locking nut 30 and the pressure tapping pipe 10 are made of stainless steel, so that certain pressure can be borne, and the sealing performance can be better ensured; also, rust can be prevented, and durability and reliability can be improved.
Wherein, the pressure sampling pipe 10 is a straight pipe.
Therefore, the pressure tapping pipe 10 is the simplest in structure and the simplest and most convenient to process, production and processing efficiency can be improved, and processing cost is reduced.
Wherein, the length of the pressure sampling pipe 10 is 4-8 cm.
In practice, pressure tapping tube 10 is preferably 5 cm in length.
The pressure pipe 10 of the above size can meet most pressure measurement connection requirement scenes, and meanwhile, length materials of the pressure pipe 10 can be saved to the greatest extent, and production and use costs are reduced.
The mounting structure of the pressure sensor connecting piece comprises pressure measuring joints which are respectively arranged on the flowmeter and the pressure sensor, wherein the pressure measuring joints are used for being in sealing butt joint with sealing joints on the pressure sensor connecting piece;
the pressure measuring connector is provided with a tubular connecting part with an external thread, the tubular connecting part is used for being inserted into an annular cavity between the locking nut 30 and the sleeve 20 and fixedly connected with the internal thread of the locking nut 30 through the external thread, and the upper end of the tubular connecting part is tightly propped against the sleeve 20, so that the end cover part 301 is propped against the inner side end surface around the through hole and the top surface of the sleeve 20 to form a sealing matching surface.
After the mounting structure of the pressure sensor connecting piece is adopted, the locking nut 30 can be rotated to realize threaded connection and sealing with the pressure measuring joint, so that the pressure sampling pipe 10 cannot be distorted and deformed in the connection process, and the sealing reliability of connection between the pressure sensor and the pressure measuring joint is better ensured.
The above are only preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the technical scope of the present invention, and the technical scope of the present invention should be considered to fall within the scope of the claims.
Claims (9)
1. Pressure sensor connecting piece, including getting the pressure pipe, the both ends of getting the pressure pipe are provided with sealing connector, its characterized in that: the sealing connector comprises a clamping sleeve and a locking nut, and the clamping sleeve is fixedly connected to the outer side of the end part of the pressure tapping pipe;
the locking nut is provided with an end cap part and a sleeve connecting part; the end cover part is movably sleeved on the pressure pipe, a through hole for the pressure pipe to penetrate through is formed in the middle of the end cover part, and the end face of the inner side, located around the through hole, of the end cover part is abutted against the surface of the top of the clamping sleeve to form a sealing matching surface;
the circumferential edge of the end cover part is axially extended and formed with the sleeve connecting part, the sleeve connecting part is provided with internal threads, the sleeve connecting part is sleeved outside the clamping sleeve, and an annular cavity for inserting an external pressure measuring connector and realizing threaded connection is arranged between the inner side surface of the sleeve connecting part and the outer side surface of the clamping sleeve.
2. The pressure sensor connector of claim 1, wherein: the sealing matching surface is a conical surface.
3. The pressure sensor attachment of claim 1 wherein: the outer side of the sleeve connecting part is provided with an outer hexagon.
4. The pressure sensor connector of claim 1, wherein: the cutting sleeve is straight and is provided with a sealing section and an inserting section in the self axial direction, and a sealing matching surface on the cutting sleeve is positioned at the top of the sealing section; the outer diameter of the insertion section is smaller than that of the sealing section, and the insertion section is used for insertion and enables the outer side face of the insertion section to be in sliding fit connection with the inner side face of the external pressure measuring joint.
5. The pressure sensor connector of claim 1, wherein: the radial outer edges of the two axial end surfaces of the clamping sleeve are provided with guide angles; the clamping sleeve is flush with the end face of the pressure sampling pipe along the axial upper outer end face of the pressure sampling pipe.
6. The pressure sensor attachment of claim 1 wherein: the cutting ferrule adopts the aluminum alloy material to make, lock nut and pressure pipe adopt stainless steel material to make.
7. The pressure sensor connector of claim 1, wherein: the pressure tapping pipe is a straight pipe.
8. The pressure sensor connector of claim 1, wherein: the length of the pressure sampling pipe is 4-8 cm.
9. The mounting structure of the pressure sensor connecting piece comprises pressure measuring joints which are respectively arranged on the flowmeter and the pressure sensor, and the pressure measuring joints are used for being in sealing butt joint with sealing joints on the pressure sensor connecting piece; the method is characterized in that: the pressure sensor connection is the pressure sensor connection of any one of claims 1 to 8;
the pressure measuring connector is provided with a tubular connecting part with an external thread, the tubular connecting part is used for being inserted into an annular cavity between the locking nut and the clamping sleeve and fixedly connected with the internal thread of the locking nut through the external thread, and the upper end of the tubular connecting part is tightly propped against the clamping sleeve, so that the end face of the inner side, located around the through hole, of the end cover part is propped against the top surface of the clamping sleeve, and a sealing matching surface is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222227395.1U CN217930420U (en) | 2022-08-24 | 2022-08-24 | Pressure sensor connecting piece and mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222227395.1U CN217930420U (en) | 2022-08-24 | 2022-08-24 | Pressure sensor connecting piece and mounting structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217930420U true CN217930420U (en) | 2022-11-29 |
Family
ID=84169703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222227395.1U Active CN217930420U (en) | 2022-08-24 | 2022-08-24 | Pressure sensor connecting piece and mounting structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217930420U (en) |
-
2022
- 2022-08-24 CN CN202222227395.1U patent/CN217930420U/en active Active
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