CN218646390U

CN218646390U - Connecting structure of sensor and transmitter

Info

Publication number: CN218646390U
Application number: CN202223004811.8U
Authority: CN
Inventors: 范泽; 倪江; 康剑; 曾德威
Original assignee: Shanghai Yinuo Instrument Co Ltd
Current assignee: Shanghai Yinuo Instrument Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-17
Anticipated expiration: 2032-11-11

Abstract

The application discloses connection structure of sensor and changer, including the connecting cylinder main part, the connector, link up in the connecting cylinder main part and be equipped with the connection chamber, be equipped with on the connection intracavity wall and link up the inner circle, the connector is including linking up the main part, link up the outer disc of main part and be equipped with and link up the linking outer lane that the inner circle is connected, in this application embodiment, adopt foretell connection structure of a sensor and changer, through set up the connector by stainless steel and glass sintering shaping between sensor and changer, can enough guarantee the signal transmission between sensor and the changer, can guarantee the vacuum environment in the sensor under the low temperature operating mode again, low temperature type mass flow meter's performance has been realized.

Description

Connecting structure of sensor and transmitter

Technical Field

The utility model relates to a technical field is connected to the changer, especially relates to a connection structure of sensor and changer.

Background

The mass flowmeter is a flow measuring instrument which is relatively accurate, rapid, reliable, efficient, stable and flexible, adopts thermal sensing measurement, measures flow according to the molecular mass taken away by split molecules, and does not influence the measurement result due to the change of gas temperature and pressure because of the thermal sensing measurement.

Because the low temperature type mass flowmeter adopts the mode of evacuation to handle in the shell, can lead to the comdenstion water to appear under the low temperature environment when the gas tightness is incomplete between sensor and the changer, and then influence the performance of flowmeter.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a connection structure of sensor and changer that signal transmission is effectual and sealed effectual.

In order to achieve the above purpose, the utility model is realized by the following technical scheme.

The application provides a connecting structure of a sensor and a transmitter, which comprises a connecting cylinder main body and a connector, wherein a connecting cavity is arranged in the connecting cylinder main body in a penetrating manner, a connecting inner ring is arranged on the inner wall of the connecting cavity, the connector comprises a connecting main body, and a connecting outer ring connected with the connecting inner ring is arranged on the outer circular surface of the connecting main body;

the connector is connected with the sensor and the transmitter respectively along two axial ends of the connecting cylinder main body about the connection outer ring.

Further, the outer circular surface of the connecting cylinder main body is provided with a fixing disc which is used for connecting the sensor and is parallel to the end face of the corresponding side of the connecting cylinder main body.

Further defined, the above connection structure of the sensor and the transmitter, wherein the connector further comprises:

the first inserting cavity is arranged on the end face of one side, far away from the fixed disc, of the connecting main body, and the opening of the first inserting cavity faces to one side, far away from the fixed disc, of the connecting main body;

the connecting bulge is fixedly arranged on the end surface of one side, close to the fixed disc, of the connecting bulge;

the second inserting cavity is arranged on the end face of one side, close to the fixed disk, of the connecting bulge, and the opening of the second inserting cavity faces to one side, close to the fixed disk;

and the copper inserting needle is communicated and fixedly arranged between the inner walls of the corresponding sides of the first inserting cavity and the second inserting cavity, and two ends of the copper inserting needle are respectively positioned in the first inserting cavity and the second inserting cavity.

Further, the outer peripheral surface of the connecting protrusion is provided with an external thread matched with the sensor plug in a threaded manner.

Further, the connection structure of the sensor and the transmitter is characterized in that the outer peripheral surface of the connecting outer ring is abutted against the inner annular surface of the connecting inner ring and is welded and fixed.

Further, the connection structure for the sensor and the transmitter is characterized in that the engaging inner ring comprises an inner ring main body fixedly arranged on the inner wall of the connecting cavity and an inner hook ring arranged on one side of the inner ring main body close to the connector;

the connection outer ring comprises an outer ring main body fixedly arranged on the outer peripheral surface of the connection main body and an outer hook ring arranged on one side of the outer ring main body far away from the connection main body;

the inner hook ring and the outer hook ring are mutually buckled and welded and fixed.

Further limiting, in the connection structure of the sensor and the transmitter, a first annular caulking groove is formed in the buckling surface of the inner shackle and the outer shackle, a second annular caulking groove corresponding to the first annular caulking groove is formed in the buckling surface of the outer shackle and the inner shackle, and a sealing ring is arranged in the second annular caulking groove and the first annular caulking groove;

the sealing ring can be respectively abutted against the inner wall of one side, away from the outer shackle, of the first annular caulking groove and the inner wall of one side, away from the inner shackle, of the second annular caulking groove.

Further, the above connecting structure for a sensor and a transmitter further comprises:

the threaded retainer ring is positioned on one side of the connecting inner ring, which is close to the transmitter, and is in threaded connection with the inner wall of the corresponding position of the connecting cavity;

the rotating part is arranged on the end face of one side, far away from the inner ring, of the threaded check ring;

the accommodating cavity is arranged on the rotating part and the threaded retaining ring in a penetrating manner and is connected with the outer peripheral surface of the connecting main body in a sliding manner;

wherein, the screw retainer ring can be abutted against the inner ring main body and the outer hook ring.

Further inject, foretell connection structure of sensor and changer, wherein, in connecting cylinder main part is axial, it is greater than the sum of the length of screw retaining ring and rotating part to link up the length that the main part is close to changer one side with linking the outer lane.

The utility model discloses possess following beneficial effect at least:

1. the connector formed by sintering the stainless steel and the glass is arranged between the sensor and the transmitter, so that the signal transmission between the sensor and the transmitter can be ensured, the vacuum environment in the sensor under the low-temperature working condition can be ensured, and the service performance of the low-temperature mass flowmeter is realized;

2. through the buckling structure between the connection inner ring and the connection outer ring, the positioning of the connection inner ring and the connection outer ring before welding and fixing is facilitated, the welding effect is improved, the gap between the connection inner ring and the connection outer ring is further reduced, the sealing performance is improved, meanwhile, the sealing ring fills the gap between the connection inner ring and the connection outer ring by utilizing the elastic potential energy of the sealing ring, and the overall sealing performance of the connection structure is further improved;

3. through prescribing a limit to the structural relation that links up main part and screw retaining ring, rotation portion for the changer plug has more abundant cooperation space with inserting the copper needle, and when the changer plug with insert the copper needle cooperation, the changer plug can conflict screw retaining ring, rotation portion, makes it totally restricted at fore-and-aft displacement, has avoided screw retaining ring and has connected the not hard up that produces in the long-term use between the intracavity wall, improves the connection stability of connector.

Drawings

FIG. 1 is a schematic structural diagram of a connection structure of a sensor and a transmitter according to an embodiment of the present disclosure;

FIG. 2 is a detailed structural diagram of a connection structure of a sensor and a transmitter according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of a sealing ring 300 portion of a connection structure of a sensor and a transmitter according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a connection structure of a sensor and a transmitter according to an embodiment of the present application;

FIG. 5 is an enlarged schematic view of a "stop collar 400" of a connection structure of a sensor and a transmitter according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a "spacing collar 400" of a connection structure of a sensor and a transmitter according to an embodiment of the present application.

Reference numerals

The connecting cylinder comprises a connecting cylinder body-110, a fixed disc-120, a connecting cavity-130, a connecting inner ring-140, an inner ring body-141, an inner hook ring-142, a first annular caulking groove-143, a connecting body-210, a first splicing cavity-220, a connecting bulge-230, a second splicing cavity-240, a connecting outer ring-250, an outer ring body-251, an outer hook ring-252, a second annular caulking groove-253, a copper inserting needle-260, a sealing ring-300, a limiting ring-400, a threaded retainer ring-410, a rotating part-420 and a containing cavity-430.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived from the embodiments in the present application by a person skilled in the art, are within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

The connection structure between the sensor and the transmitter provided in the embodiments of the present application is described in detail with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 1, an embodiment of the present application provides a connection structure of a sensor and a transmitter, including a connecting cylinder main body 110 and a connector, a connecting cavity 130 is provided through the connecting cylinder main body 110, and the connector is fixedly connected to an inner wall of the connecting cavity 130.

The connector comprises a connecting body 210, a fixed disc 120 which is flush with one side end face of the connecting body 110 is integrally formed on the outer circular face of the connecting body 110, a connecting inner ring 140 is fixedly arranged on the inner wall of a connecting cavity 130, the connecting body 210 is provided with a first plugging cavity 220 with an opening facing away from one side of the fixed disc 120 and far away from one side of the fixed disc 120, a connecting bulge 230 is arranged on the end face of the connecting body 210 close to one side of the fixed disc 120, a second plugging cavity 240 with an opening facing away from one side of the first plugging cavity 220 is arranged in the connecting bulge 230, a plurality of copper inserting needles 260 are communicated and fixedly arranged between the inner wall of one side of the first plugging cavity 220 close to the first plugging cavity 220 and the inner wall of one side of the second plugging cavity 240 close to the first plugging cavity 220 and between the inner wall of one side of the second plugging cavity 240 close to the first plugging cavity 220 close to the second plugging cavity 240 close to the first plugging cavity 220, two ends of the copper inserting needles 260 are respectively located in the first plugging cavity 220 and the second plugging cavity 240, a connecting outer circular face of the connecting body 210 is provided with a connecting outer ring 250, and the outer ring 250 is fixedly connected with the inner ring 140.

The connector adopts stainless steel and glass sintering integrated into one piece, and fixed disk 120 is used for with sensor welded fastening, and second grafting chamber 240 is used for pegging graft with the plug of sensor, is equipped with the external screw thread with sensor plug screw-thread fit on the outer peripheral face of connecting protrusion 230, and first grafting chamber 220 is used for pegging graft with the plug of changer, and wherein, inserts copper needle 260 both ends respectively with the sensor or the cooperation of changer plug of corresponding position to realize the signal transmission between sensor and the changer.

It can be understood that the inner ring 140 and the outer ring 250 are connected by welding, and the welding ensures no gap between them, so as to ensure the sealing performance between the sensor and the transmitter, and of course, the connection between the inner ring 140 and the outer ring 250 is not limited to the above-mentioned one, and for example, a fixing manner such as bonding, screw connection, etc. may be adopted as long as the sealing performance requirement between the transmitter and the sensor can be satisfied.

In the embodiment of the application, adopt foretell connection structure of a sensor and changer, through set up the connector by stainless steel and glass sintering shaping between sensor and changer, can enough guarantee the signal transmission between sensor and the changer, can guarantee the vacuum environment in the sensor under the low temperature operating mode again, realized low temperature type mass flowmeter's performance.

In a preferred embodiment, as shown in fig. 2 and 3, the engaging inner ring 140 includes an inner ring main body 141 fixedly disposed on the inner wall of the connecting cavity 130 and an inner hook ring 142 integrally formed on one side of the inner ring main body 141 close to the connector, the engaging outer ring 250 includes an outer ring main body 251 fixedly disposed on the outer circumferential surface of the engaging main body 210 and an outer hook ring 252 integrally formed on one side of the outer ring main body 251 away from the engaging main body 210, the inner hook ring 142 and the outer hook ring 252 are both hook-shaped and engaged with each other along a central cross-section (the central cross-section is a plane passing through the axis of the connecting cylinder main body 110), that is, the inner hook ring 142 limits the displacement of the connecting body to the side close to the fixing disk 120, and a gap between the engaging inner ring 140 and the outer hook ring 252 is fixed by welding, which is required to be the same as above.

The end face of the inner hook ring 142 close to the outer hook ring 252 is provided with a first annular caulking groove 143 with an opening close to one side of the outer hook ring 252, the end face of the outer hook ring 252 close to one side of the inner hook ring 142 is provided with a second annular caulking groove 253 with an opening close to one side of the inner hook ring 142 and corresponding to the first annular caulking groove 143, a sealing ring 300 is arranged in the second annular caulking groove 253 and the first annular caulking groove 143, when the inner hook ring 142 is buckled with the outer hook ring 252, the sealing ring 300 is respectively abutted against the inner wall of one side of the outer hook ring 252 away from the first annular caulking groove 143 and the inner wall of one side of the inner hook ring 142 away from the second annular caulking groove 253.

Sealing washer 300 can adopt flexible material such as rubber for when linking up inner circle 140 and linking outer lane 250 fixed, sealing washer 300 keeps away from outer shackle 252 one side inner wall and second annular caulking groove 253 respectively with first annular caulking groove 143 when keeping away from inner shackle 142 one side inner wall and contradict, sealing washer 300 is in compression state, thereby makes sealing washer 300 can further fill the clearance between linking inner circle 140 and linking outer lane 250 under the effect of elasticity potential energy, and then realizes the better sealed effect between sensor and the changer.

In the embodiment of the present application, adopt foretell connection structure of a sensor and changer, through linking inner circle 140 and linking the lock structure between the outer lane 250, not only be convenient for the two location before welded fastening, improve the welding effect, further reduce the gap between the two moreover, improve the leakproofness, simultaneously sealing washer 300 utilizes self elastic potential energy to fill linking inner circle 140 and linking the clearance between the outer lane 250, the whole sealing performance of this connection structure has further been promoted.

In a preferred embodiment, as shown in fig. 4 to 6, the connection inner ring 140 and the connection outer ring 250 are not fixed by welding, a position-limiting ring 400 is disposed in the connection cavity 130 on a side of the connection inner ring 140 away from the fixed disk 120, the position-limiting ring 400 includes a threaded retainer ring 410 in threaded connection with an inner wall of a corresponding position of the connection cavity 130, a rotating portion 420 is integrally formed on an end surface of the threaded retainer ring 410 on a side away from the connector, and a receiving cavity 430 slidably connected with an outer peripheral surface of the connection main body 210 is disposed through the rotating portion 420 and the threaded retainer ring 410.

The structure of the rotating part 420 is set to be any structure suitable for screwing by hands or tools, such as regular pentagon, regular hexagon and the like, the rotating part 420 can be rotated to drive the threaded retainer ring 410 in threaded connection with the inner wall of the connecting cavity 130 to move axially along the connecting cylinder main body 110, when the rotating part 420 is in conflict engagement with the corresponding side end face of the inner ring 140, the threaded retainer ring 410 is in conflict engagement with the outer ring 250 at the same time, because the connector is in conflict spacing with the inner hook ring 142 in the displacement close to one side of the fixed disk 120, and in conflict spacing with the threaded retainer ring 410 in the displacement far away from one side of the fixed disk 120, the relative position of the connector and the connecting cylinder main body 110 is fixed.

Adopt above-mentioned connected mode, in order to make spacing collar 400 not to produce the interference to the cooperation of changer plug and inserting copper needle 260, it lengthens along the axial length of connecting cylinder main part 110 to link up main part 210, to be precise, it lengthens along linking the length that outer lane 250 kept away from connection arch 230 one side to link up main part 210, thereby make the changer plug have more abundant fitting space with inserting copper needle 260, and when the cooperation of changer plug with inserting copper needle 260, the changer plug can conflict spacing collar 400 makes it totally restricted at fore-and-aft displacement, the not hard up that produces in the long-term use process between spacing collar 400 and the connection chamber 130 inner wall has been avoided promptly.

It can be understood that even if the position of the connector is fixed by using the spacing collar 400, other fixing manners may still be used between the inner ring 140 and the outer ring 250, and at this time, the spacing collar 400 can be used as a secondary reinforcing component, for example, the inner ring 140 and the outer ring 250 are welded and fixed, and the connector is further reinforced by using the spacing collar 400, which not only can increase the connection stability of the connector, but also can further improve the sealing performance between the sensor and the transmitter through the threaded retainer ring 410.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A connecting structure of a sensor and a transmitter is characterized by comprising a connecting cylinder main body and a connector, wherein a connecting cavity is arranged in the connecting cylinder main body in a penetrating manner, a connecting inner ring is arranged on the inner wall of the connecting cavity, the connector comprises a connecting main body, and a connecting outer ring connected with the connecting inner ring is arranged on the outer circular surface of the connecting main body;

the connector is connected with the sensor and the transmitter respectively about connecting the two ends of the outer ring along the axial direction of the connecting cylinder main body.

2. The structure of claim 1, wherein a fixing plate is disposed on the outer circumferential surface of the connecting cylinder body, the fixing plate being used for connecting the sensor and being flush with the corresponding side end surface of the connecting cylinder body.

3. The sensor-transmitter connection according to claim 1 or 2, wherein the connector further comprises:

4. The sensor and transmitter connection structure of claim 3, wherein an external thread matching with the sensor plug thread is provided on the outer peripheral surface of the connection protrusion.

5. The sensor-transmitter connection structure according to claim 1, wherein the outer peripheral surface of the engaging outer ring is abutted against the inner peripheral surface of the engaging inner ring and welded and fixed thereto.

6. The sensor and transmitter coupling structure of claim 1, wherein the engagement inner ring includes an inner ring body fixedly disposed on an inner wall of the coupling cavity and an inner shackle disposed on a side of the inner ring body adjacent to the connector;

7. The connection structure of the sensor and the transmitter as claimed in claim 6, wherein a first annular caulking groove is arranged on the fastening surface of the inner shackle and the outer shackle, a second annular caulking groove corresponding to the first annular caulking groove is arranged on the fastening surface of the outer shackle and the inner shackle, and sealing rings are arranged in the second annular caulking groove and the first annular caulking groove;

8. The sensor-transmitter connection structure according to claim 6 or 7, further comprising:

the threaded retainer ring is positioned on one side of the connecting inner ring close to the transmitter and is in threaded connection with the inner wall of the corresponding position of the connecting cavity;

the rotating part is arranged on the end surface of one side, far away from the connecting inner ring, of the threaded retainer ring;

the accommodating cavity is arranged on the rotating part and the threaded retaining ring in a penetrating manner and is connected with the outer peripheral surface of the connecting body in a sliding manner;

9. The sensor/transmitter connection structure of claim 8, wherein, in the axial direction of the connector body, the length of the engagement body on the side of the engagement outer ring close to the transmitter is greater than the sum of the lengths of the threaded retainer ring and the rotation part.