CN219455344U

CN219455344U - Resonant pressure transmitter structure

Info

Publication number: CN219455344U
Application number: CN202223309878.2U
Authority: CN
Inventors: 关林林; 李�亨; 张龙; 陈维涛; 王淞立; 赵虎
Original assignee: Xi'an Siwei Sensor Technology Co ltd
Current assignee: Xi'an Siwei Sensor Technology Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-08-01
Anticipated expiration: 2032-12-09

Abstract

The application relates to a resonant pressure transmitter structure, comprising: the gauge outfit shell assembly, the lower end of the gauge outfit shell assembly is provided with a fixed block, the lower end of the fixed block is provided with a thread groove, and the inside of the thread groove is connected with a connecting base through a first thread; the connecting base, the inside of connecting the base is opened there is the spread groove, and the lower part of spread groove has pressure interface through second threaded connection. The device provided by the embodiment of the application has the advantages that the whole structure is simplified, the assembly process is simplified, the design is simplified, the universality is high, the gap between the silicon resonance pressure sensor and the pressure interface is sealed by selecting a proper second sealing ring, the welding position is reserved on the pressure interface, and the sealing performance can be further improved by welding according to the requirement; a welding position is reserved between the pressure interface and the connecting base; the connecting base is sealed with the gauge outfit shell assembly through the first sealing ring, so that the sealing performance of the equipment is improved.

Description

Resonant pressure transmitter structure

Technical Field

The application relates to the technical field of pressure transmitters, in particular to a resonant pressure transmitter structure.

Background

The pressure transmitter is the most commonly used pressure measurement equipment in industrial practice, is widely applied to various industrial automatic control environments, relates to various fields such as aerospace, military industry, railway traffic, water conservancy and hydropower, intelligent manufacturing and the like, is basically based on piezoresistive pressure chip design in the existing market, has the defects of low precision, poor stability and the like, and is unreasonable in structural member design, so that sensors arranged in the transmitter are often damaged.

The resonant pressure transmitter is a novel high-precision pressure transmitter, and the working principle of the resonant pressure transmitter is different from that of the traditional piezoresistive pressure transmitter, so that the resonant pressure transmitter has higher precision and stability. Because of the difference of the working principles, the packaging of the pressure sensor is different, the volume of the resonant pressure sensor is larger, the circuit part is more, the resonant pressure transmitter in the market is less, the universality of the structural design is not as good as that of the piezoresistive pressure transmitter, the structural design of the resonant pressure transmitter is more in special parts, but the structure is complex and the volume is overlarge, the assembly process is complicated, and the universality is lower, so that the resonant pressure transmitter structure is provided.

Disclosure of Invention

The application provides a resonant pressure transmitter structure to solve the special part is more on the structural design of current resonant pressure transmitter, but the structure is complicated and the volume is too big, and assembly process is loaded down with trivial details, the lower problem of commonality.

To solve or at least partially solve the above technical problems, the present application provides a resonant pressure transmitter structure, including:

the gauge outfit shell assembly, the lower end of the gauge outfit shell assembly is provided with a fixed block, the lower end of the fixed block is provided with a thread groove, and the inside of the thread groove is connected with a connecting base through a first thread;

the connecting base is internally provided with a connecting groove, and the lower part of the connecting groove is connected with a pressure interface through a second thread;

and the silicon resonance pressure sensor is fixedly connected in the connecting base.

Optionally, a round groove is formed in the middle of the lower end of the pressure interface, and a third thread is arranged on the inner side wall of the round groove.

Optionally, a sealing groove is formed in the middle of the upper end of the pressure interface, a connecting cylinder groove is formed in the middle of the lower end of the sealing groove of the pressure interface, and a fourth thread is formed in the side wall of the connecting cylinder groove.

Optionally, a pressure inlet channel is formed in the middle between the connecting cylindrical groove and the circular groove at the upper end of the pressure connector.

Optionally, the connection gap between the lower side of the connection base and the upper side of the pressure interface after the connection base is sleeved with the second thread is welded and fixed through a first welding strip.

Optionally, the outside middle part of connecting the base is equipped with spacing boss, and the upper end of spacing boss extrudees the laminating with the fixed block lower extreme of gauge outfit casing subassembly lower extreme.

Optionally, the inboard of connection base is opened there is the holding tank, and the lower extreme of holding tank is open to the internal connection of holding tank has silicon resonance pressure sensor, silicon resonance pressure sensor's lower extreme outside is through the welding of second welding strip in the inside wall lower part of holding tank.

Optionally, the outside of connection base is opened in the upper portion of spacing boss has and is stopped the commentaries on classics groove, it has the bolt that stops changeing to stop the inside grafting in changeing the groove, and stops changeing the bolt and peg graft in gauge outfit housing assembly's lower extreme fixed block lower part through the screw thread.

Optionally, the outside of connecting the base has cup jointed first sealing washer in the upside of stopping changeing the groove.

Optionally, a second sealing ring is arranged on the outer side of the upper end of the pressure interface.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

the equipment provided by the embodiment of the application has the advantages that the whole structure is simplified, the assembly process is simplified, the design is simplified, the universality is high, the investment of special parts is reduced, the resources are greatly saved, the gap between the silicon resonance pressure sensor and the pressure interface is sealed by selecting a proper second sealing ring, the welding position is reserved on the pressure interface, and the sealing performance can be further improved by welding according to the requirement; welding positions are reserved between the pressure interface and the connecting base, and the tightness and the connecting strength are improved through welding; the connecting base is sealed with the gauge outfit shell assembly through the first sealing ring, so that the sealing performance of the equipment is greatly improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a cross-sectional view of a resonant pressure transmitter;

FIG. 2 is a cross-sectional view of a pressure interface of a resonant pressure transmitter structure;

FIG. 3 is a cross-sectional view of a connection base of a resonant pressure transmitter structure.

In the figure: 10. a pressure interface; 11. a third thread; 12. a fourth thread; 121. a pressure inlet channel; 122. sealing grooves; 123. a second welding strip; 13. a second thread; 14. a first welding strip; 20. a silicon resonant pressure sensor; 21. a second seal ring; 30. the base is connected; 31. a receiving groove; 32. a rotation stopping groove; 33. a limit boss; 34. a first thread; 341. a first seal ring; 40. gauge outfit housing assembly.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Various embodiments of the present application may exist in a range format, and it should be understood that the description in a range format is merely for convenience and brevity and should not be construed as a rigid limitation to the scope of the present application; it is therefore to be understood that the range description has specifically disclosed all possible sub-ranges and individual values within that range. For example, it should be considered that a description of a range from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5, and 6, wherever applicable. In addition, whenever a numerical range is indicated in this application, it is intended to include any reference to the numbers (fractional or integer) within the indicated range. Unless specifically indicated otherwise, the various raw materials, reagents, instruments, equipment, and the like used in this application are commercially available or may be prepared by existing methods.

In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used specifically to refer to the orientation of the drawing in the figures. In addition, in the present application, the terms "include," "include," etc. mean "including but not limited to. In this application, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the present application, "and/or" describing the association relationship of the association object means that there may be three relationships, for example, a and/or B may mean: a alone, a and B together, and B alone. Wherein A, B may be singular or plural. In this application, "at least one" means one or more, and "a plurality" means two or more. "at least one", "at least one" or the like refer to any combination of these items, including any combination of a single item or a plurality of items. For example, "at least one of a, b, or c," or "at least one of a, b, and c," may each represent: a, b, c, a-b, i.e. a and b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple, respectively.

As shown in fig. 1-3, embodiments of the present application provide a resonant pressure transmitter structure comprising:

the gauge outfit shell assembly 40, wherein a fixed block is arranged at the lower end of the gauge outfit shell assembly 40, a thread groove is formed at the lower end of the fixed block, and the inside of the thread groove is connected with the connecting base 30 through a first thread 34;

the connecting base 30 is provided with a connecting groove inside, and the lower part of the connecting groove is connected with the pressure interface 10 through the second thread 13;

the silicon resonance pressure sensor 20, the silicon resonance pressure sensor 20 is fixedly connected inside the connection base 30.

Specifically: the silicon resonant pressure sensor 20 employs a commercially available sensor 2 and, as is known in the art, the gauge outfit housing assembly 40 employs a commercially available resonant pressure transmitter gauge outfit housing assembly.

As shown in fig. 1 and 2: the middle part of the lower end of the pressure connector 10 is provided with a round groove, and the inner side wall of the round groove is provided with a third thread 11.

Specifically: the third thread 11 inside the circular groove can be connected to the external device to be tested.

As shown in fig. 1 and 2: the middle part of the upper end of the pressure interface 10 is provided with a sealing groove 122, the middle part of the lower end of the sealing groove 122 of the pressure interface 10 is provided with a connecting cylinder groove, and the side wall of the connecting cylinder groove is provided with a fourth thread 12.

Specifically: the seal groove 122 is for mounting the second seal ring 21.

As shown in fig. 1 and 2: a pressure inlet channel 121 is formed in the middle between the connecting cylindrical groove and the circular groove at the upper end of the pressure connector 10.

Specifically: the pressure inlet passage 121 is an inlet passage for gas pressure.

As shown in fig. 1: the lower side of the connecting base 30 and the upper side of the pressure interface 10 are welded and fixed through the first welding strip 14 at the connecting gap after being sleeved by the second screw thread 13.

Specifically: the first welding bar 14 is the location of the weld.

As shown in fig. 1: the middle part of the outer side of the connecting base 30 is provided with a limiting boss 33, and the upper end of the limiting boss 33 is extruded and attached to the lower end of the fixed block at the lower end of the gauge outfit shell assembly 40.

Specifically: the limit boss 33 is threaded into the gauge outfit housing assembly 40 to limit the depth of the connection base 30.

As shown in fig. 1: the inner side of the connection base 30 is provided with a containing groove 31, the lower end of the containing groove 31 is open, the silicon resonance pressure sensor 20 is connected to the inner side of the containing groove 31, and the outer side of the lower end of the silicon resonance pressure sensor 20 is welded to the lower portion of the inner side wall of the containing groove 31 through a second welding strip 123.

Specifically: the second bonding bar 123 is a bonding location, the silicon resonant pressure sensor 20 is a silicon resonant pressure sensor existing in the market, and the silicon resonant pressure sensor 20 is installed inside the receiving groove 31.

As shown in fig. 1: the outer side of the connection base 30 is provided with a rotation stopping groove 32 at the upper part of the limiting boss 33, a rotation stopping bolt is inserted into the rotation stopping groove 32, and the rotation stopping bolt is inserted into the lower part of the lower end fixing block of the gauge outfit shell assembly 40 through threads.

Specifically: the limiting boss 33 limits the depth to which the coupling base 30 is screwed into the inside of the gauge outfit housing assembly 40, and screws the rotation-stopping screw into the rotation-stopping groove 32 to fasten the rotation-stopping coupling base 30.

As shown in fig. 1: the outer side of the connection base 30 is sleeved with a first sealing ring 341 at the upper side of the rotation stopping groove 32.

Specifically: the first seal 341 can increase the tightness of the connection between the connection base 30 and the gauge outfit housing assembly 40.

As shown in fig. 1: a second sealing ring 21 is arranged outside the upper end of the pressure port 10.

Specifically: the second seal ring 21 can increase the tightness of the connection between the pressure port 10 and the connection base 30.

When the device is installed, the second sealing ring 21 is installed in the sealing groove 122 of the pressure interface 10, then the integral structure of the silicon resonance pressure sensor 20 is connected and screwed with the pressure interface 10 through threads, then the pressure interface 10 and the silicon resonance pressure sensor 20 are welded through reserved welding positions, then the silicon resonance pressure sensor 20 is stretched into the accommodating groove 31 of the connecting base 30, then the silicon resonance pressure sensor 20 is screwed through threaded connection on the connecting base 30 and the pressure interface 10, finally the connecting base 30 and the pressure interface 10 are connected and then welded through reserved welding positions, the first sealing ring 341 is sleeved on the connecting base 30, then the silicon resonance pressure sensor 20 is connected and screwed with the gauge outfit shell assembly 40 through the first threads 34, and the rotation stopping bolts are screwed into the rotation stopping grooves 32 to be fastened to prevent rotation.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A resonant pressure transmitter structure comprising:

the gauge outfit shell assembly (40), the lower end of the gauge outfit shell assembly (40) is provided with a fixed block, the lower end of the fixed block is provided with a thread groove, and the inside of the thread groove is connected with the connecting base (30) through a first thread (34);

the connecting base (30) is internally provided with a connecting groove, and the lower part of the connecting groove is connected with the pressure interface (10) through a second thread (13);

and the silicon resonance pressure sensor (20) is fixedly connected inside the connecting base (30).

2. The resonant pressure transmitter structure of claim 1, wherein: the middle part of the lower end of the pressure interface (10) is provided with a round groove, and the inner side wall of the round groove is provided with a third thread (11).

3. The resonant pressure transmitter structure of claim 1, wherein: the middle part of the upper end of the pressure interface (10) is provided with a sealing groove (122), the middle part of the lower end of the sealing groove (122) of the pressure interface (10) is provided with a connecting cylinder groove, and the side wall of the connecting cylinder groove is provided with a fourth thread (12).

4. A resonant pressure transmitter structure according to claim 3, wherein: a pressure inlet channel (121) is formed in the middle of the upper end of the pressure connector (10) between the connecting cylindrical groove and the circular groove.

5. The resonant pressure transmitter structure of claim 1, wherein: the lower side of the connecting base (30) and the upper side of the pressure interface (10) are welded and fixed through a first welding strip (14) at a connecting gap after being sleeved by a second thread (13).

6. The resonant pressure transmitter structure of claim 1, wherein: the middle part in the outside of connection base (30) is equipped with spacing boss (33), and the upper end of spacing boss (33) is laminated with the fixed block lower extreme extrusion of gauge outfit casing subassembly (40) lower extreme.

7. The resonant pressure transmitter structure of claim 1, wherein: the inside of connecting base (30) is opened there is holding tank (31), and the lower extreme of holding tank (31) is open to the internal connection of holding tank (31) has silicon resonance pressure sensor (20), the lower extreme outside of silicon resonance pressure sensor (20) is welded in the inside wall lower part of holding tank (31) through second welding strip (123).

8. The resonant pressure transmitter structure of claim 1, wherein: the outer side of the connecting base (30) is provided with a rotation stopping groove (32) at the upper part of the limiting boss (33), a rotation stopping bolt is inserted into the rotation stopping groove (32), and the rotation stopping bolt is inserted into the lower part of the lower end fixing block of the gauge outfit shell assembly (40) through threads.

9. The resonant pressure transmitter structure of claim 1, wherein: the outer side of the connecting base (30) is sleeved with a first sealing ring (341) at the upper side of the rotation stopping groove (32).

10. The resonant pressure transmitter structure of claim 1, wherein: and a second sealing ring (21) is arranged outside the upper end of the pressure interface (10).