CN220136545U - Differential pressure sensor combined sealing structure - Google Patents
Differential pressure sensor combined sealing structure Download PDFInfo
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- CN220136545U CN220136545U CN202321303702.8U CN202321303702U CN220136545U CN 220136545 U CN220136545 U CN 220136545U CN 202321303702 U CN202321303702 U CN 202321303702U CN 220136545 U CN220136545 U CN 220136545U
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- 238000007789 sealing Methods 0.000 title claims abstract description 69
- 239000011521 glass Substances 0.000 claims abstract description 46
- 230000002093 peripheral effect Effects 0.000 claims abstract description 35
- 230000001105 regulatory effect Effects 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 9
- 238000009530 blood pressure measurement Methods 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a differential pressure sensor type sealing structure, and relates to the technical field of differential pressure sensors. The device comprises a device body, wherein a containing cavity is fixedly formed in the device body, a glass block is clamped on the inner wall of the containing cavity, a pressure measuring module is arranged in the glass block, a locking ring is rotationally connected to the bottom surface of the glass block, the peripheral side surface of the locking ring is in threaded connection with the device body, a pressure regulating assembly is arranged in the device body, and two symmetrically arranged pressure holding plates with adjustable intervals are connected to the peripheral side surface of the pressure regulating assembly in a transmission manner. When the glass block is assembled, the glass block is inserted into the accommodating cavity, the position of the glass block is effectively limited through the locking ring, the locking ring is made of metal, after the glass block is inserted, the lead terminal at the upper part of the locking ring is electrically connected with the central control panel, and after the glass block is installed, the two sealing guide cylinders are fully attached to the glass block through driving the transmission rod, so that the sealed strength of the pressure measuring cavity is effectively ensured.
Description
Technical Field
The utility model belongs to the technical field of differential pressure sensors, and particularly relates to a differential pressure sensor type sealing structure.
Background
The differential pressure sensor is a sensor for measuring the difference between two pressures, is usually used for measuring the differential pressure of the front end and the rear end of a certain device or part, and is widely applied to the fields of electric power such as textile workshops, boiler air supply, underground ventilation and the like, coal textile cotton yarns, dust removing equipment or industrial pressure control. The working principle of the differential pressure sensor is that the measured pressure directly acts on the diaphragm of the sensor, so that the diaphragm generates micro displacement in direct proportion to the pressure, and the capacitance value of the sensor changes, thereby converting and outputting a standard measurement signal corresponding to the pressure.
At present, a capacitive sensor is generally adopted as a pressure sensor for converting measured pressure into capacitance value to change through a capacitance serving as a sensitive element, for example, a pressure difference sensor is disclosed in a patent document with publication number of CN213779361U, the pressure difference sensor can be applied to pressure detection of a corresponding pressure pipeline system, two measuring points of a sensor body can be respectively connected with an inlet end and an outlet end of a pipeline, and relative pressure can be accurately obtained according to pressure difference values of the two measuring points, but the sensor adopts an integrated structure during production, and the sensor is inconvenient to replace elements inside the sensor due to the adoption of the integrated structure, and meanwhile lacks a corresponding sealing structure.
Disclosure of Invention
The utility model aims to provide a pressure difference sensor type sealing structure, which solves the problems that the existing sensor adopts an integrated structure in production and is inconvenient to replace elements in the sensor due to the integrated structure, and meanwhile, the sensor lacks a corresponding sealing structure through the arrangement of structures such as a pressure measuring module, a device body, a pressure regulating assembly and the like.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a differential pressure sensor combined sealing structure which comprises a device body, wherein a containing cavity is fixedly formed in the device body, a glass block is clamped on the inner wall of the containing cavity, a pressure measuring module is arranged in the glass block, a locking ring is rotatably connected to the bottom surface of the glass block, the peripheral side surface of the locking ring is in threaded connection with the device body, a pressure regulating assembly is arranged in the device body, two symmetrically-arranged pressure holding plates with adjustable intervals are in transmission connection with the peripheral side surface of the pressure regulating assembly, sealing guide cylinders communicated with the pressure measuring module are fixedly arranged on the inner walls of the two pressure holding plates, sealing rings are fixedly arranged on the peripheral side surfaces of the sealing guide cylinders, a plurality of ring sealing grooves are formed in one surface of the sealing ring and the sealing guide cylinder, and sealing rings a matched with the specifications of the ring sealing grooves are arranged at positions corresponding to the positions of the sealing rings.
As the preferable technical scheme of the utility model, the pressure measurement module comprises a central control panel fixed at the top of the device body and measurement diaphragms installed in the middle of the glass block, wherein the two symmetrically arranged pressure measurement cavities are separated by the measurement diaphragms in the glass block, the surfaces of the two pressure measurement cavities are respectively communicated with the two sealing guide cylinders, the metal diaphragms are installed in the two pressure measurement cavities, lead terminals are electrically connected to the tops of the measurement diaphragms and the metal diaphragms, data sockets electrically connected with the lead terminals are installed in the device body and correspond to the positions of each lead terminal, and the data ends of the data sockets are electrically connected with the central control panel.
As the preferable technical scheme of the utility model, the cross section of the containing cavity is square, the cross section of the locking ring is circular, the peripheral side surface of the locking ring is fixedly provided with a sealing rubber liner matched with the device body, the bottom of the device body is fixedly provided with a threaded hole communicated with the containing cavity, and the peripheral side surface of the sealing rubber liner is fixedly provided with a threaded part matched with the threaded hole.
As the preferable technical scheme of the utility model, the pressure regulating assembly comprises a pressure regulating screw rod and a transmission rod respectively, both ends of the pressure regulating screw rod and the peripheral side surface of the transmission rod are rotationally connected with the device body, a driven bevel gear is fixedly arranged in the middle of the pressure regulating screw rod, a transmission bevel gear meshed with the driven bevel gear is fixedly arranged at the tail end of the transmission rod, a forward thread part and a reverse thread part are symmetrically arranged on the peripheral side surface of the pressure regulating screw rod, the peripheral side surfaces of the forward thread part and the reverse thread part are respectively in transmission connection with two pressing plates, and the peripheral side surfaces of the pressing plates are in sliding connection with the device body.
As a preferable technical scheme of the utility model, the peripheral side surfaces of the two sealing guide cylinders are both in sliding communication with a pressure inlet pipe, and the peripheral side surfaces of the sealing guide cylinders are fixedly provided with sealing rings b matched with the pressure inlet pipe.
The utility model has the following beneficial effects:
1. when the glass block is assembled, the glass block is inserted into the accommodating cavity and the position of the glass block is effectively limited through the locking ring, the locking ring is made of metal, after the glass block is inserted, the lead terminal at the upper part of the glass block is electrically connected with the central control panel, and after the glass block is installed, the two sealing guide cylinders are fully attached to the glass block through driving the transmission rod, so that the sealed strength of the pressure measuring cavity is effectively ensured, when the measuring element in the glass block is damaged, the operation is reversed, the glass block and the measuring element in the glass block can be quickly removed, and the measuring element can be conveniently and quickly maintained and replaced.
2. The arrangement of the annular sealing groove, the sealing ring a and the sealing ring b can play a double sealing effect on the pressure measurement module when the pressure measurement module is installed on the basis of ensuring the quick replacement function of the differential pressure sensor element, and the measurement accuracy of the sensor is effectively ensured through the double sealing effect.
Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a differential pressure sensor-based seal structure;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
FIG. 4 is a schematic view of a partial enlarged structure at A in FIG. 3;
FIG. 5 is a schematic view of the structure of the glass block and the locking ring.
In the drawings, the list of components represented by the various numbers is as follows:
1. a body; 2. a glass block; 3. a locking ring; 4. a pressing plate; 5. sealing the guide cylinder; 6. sealing rings; 7. a sealing ring a; 8. a central control panel; 9. measuring the diaphragm; 10. a pressure measurement cavity; 11. a metal diaphragm; 12. a lead terminal; 13. a sealant liner; 14. a pressure regulating screw rod; 15. a transmission rod; 16. a pressure inlet pipe; 17. and a sealing ring b.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, 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.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-5, the utility model discloses a differential pressure sensor combined sealing structure, which comprises a device body 1, wherein a cavity is fixedly formed in the device body 1, the cross section of the cavity is square, and a glass block 2 is clamped on the inner wall of the cavity;
the inside of the glass block 2 is provided with a pressure measurement module, the bottom surface of the glass block 2 is rotationally connected with a locking ring 3, the cross section of the locking ring 3 is circular, and the peripheral side surface of the locking ring 3 is in threaded connection with the device body 1;
the sealing rubber liner 13 matched with the device body 1 is fixedly arranged on the peripheral side surface of the locking ring 3, a threaded hole communicated with the containing cavity is fixedly formed in the bottom of the device body 1, a threaded part matched with the threaded hole is fixedly formed in the peripheral side surface of the sealing rubber liner 13, and the sealing property of the joint of the locking ring 3 and the device body 1 is effectively ensured through the arrangement of the sealing rubber liner 13;
the pressure regulating assembly is arranged in the device body 1, two symmetrically arranged pressure holding plates 4 with adjustable intervals are connected to the peripheral side face of the pressure regulating assembly in a transmission way, the pressure regulating assembly respectively comprises a pressure regulating screw rod 14 and a transmission rod 15, both ends of the pressure regulating screw rod 14 and the peripheral side face of the transmission rod 15 are rotationally connected with the device body 1, a driven bevel gear is fixedly arranged in the middle of the pressure regulating screw rod 14, a transmission bevel gear meshed with the driven bevel gear is fixedly arranged at the tail end of the transmission rod 15, a forward threaded part and a reverse threaded part are symmetrically arranged on the peripheral side face of the pressure regulating screw rod 14, the peripheral side faces of the forward threaded part and the reverse threaded part are respectively connected with the two pressure holding plates 4 in a transmission way, and the peripheral side face of the pressure holding plate 4 is in sliding connection with the device body 1;
the inner walls of the two pressing and holding plates 4 are fixedly provided with sealing guide cylinders 5 communicated with the pressing and measuring module, the sealing guide cylinders 5 are hollow cylindrical structures with openings at two ends, the peripheral side surfaces of the sealing guide cylinders 5 are fixedly provided with sealing rings 6, the peripheral side surfaces of the two sealing guide cylinders 5 are respectively and slidably communicated with a pressing pipe 16, and the peripheral side surfaces of the sealing guide cylinders 5 are fixedly provided with sealing rings b17 matched with the pressing pipes 16;
two ring seal grooves are formed in one face of the glass block 2, which is opposite to the seal guide cylinder 5, and one face of the device body 1, which is opposite to the seal ring 6, and sealing rings a7 which are matched with the specifications of the ring seal grooves are arranged on the surfaces of the seal ring 6 and the seal guide cylinder 5 and correspond to the positions of the ring seal grooves, and the sealing rings a7 and the double-ring seal grooves are arranged, so that the tightness of the joint of the glass block 2 and the seal guide cylinder 5 and the tightness of the joint of the seal ring 6 and the device body 1 are effectively ensured, and the double-seal effect can be achieved on the pressure measurement module during the installation of the pressure measurement module through the double-group ring seal grooves.
The pressure measurement module comprises a central control panel 8 fixed at the top of the device body 1 and a measurement diaphragm 9 arranged in the middle of the glass block 2, wherein two symmetrically arranged pressure measurement cavities 10 are separated by the measurement diaphragm 9 in the glass block 2, and the surfaces of the two pressure measurement cavities 10 are respectively communicated with the two sealing guide cylinders 5;
the metal diaphragm 11 is all installed to the inside of two pressure measurement chambeies 10, and the top of measuring diaphragm 9 and metal diaphragm 11 all is connected with lead terminal 12, and the data socket who is connected with lead terminal 12 electricity is all installed to the inside of ware body 1 and the position that corresponds each lead terminal 12, and the data end and the well control panel 8 electricity of data socket are connected.
One specific application of this embodiment is: during the equipment, glass piece 2 inserts the appearance chamber and effectively prescribes a limit to the position of glass piece 2 through locking ring 3, locking ring 3 is the metal material, after glass piece 2 inserts, its upper portion lead terminal 12 is connected with well accuse panel 8 electricity, and after glass piece 2 installs, through the drive to transfer line 15, thereby make two sealed guide cylinders 5 fully laminate with glass piece 2, then effectively guarantee the sealed intensity of pressure measurement chamber 10, when the inside measuring element of glass piece 2 takes place the damage, reverse operation, then can remove glass piece 2 and inside measuring element fast, then conveniently carry out quick maintenance and change operation to measuring element.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. Differential pressure sensor formula seal structure, including ware body (1), its characterized in that: the device is characterized in that the inside of the device body (1) is fixedly provided with a containing cavity, the inner wall of the containing cavity is clamped with a glass block (2), the inside of the glass block (2) is provided with a pressure measuring module, the bottom surface of the glass block (2) is rotationally connected with a locking ring (3), the peripheral side surface of the locking ring (3) is in threaded connection with the device body (1), the inside of the device body (1) is provided with a pressure regulating assembly, the peripheral side surface of the pressure regulating assembly is in transmission connection with two pressure holding plates (4) which are symmetrically arranged and have adjustable intervals, the inner walls of the two pressure holding plates (4) are fixedly provided with sealing guide cylinders (5) communicated with the pressure measuring module, the peripheral side surface of the sealing guide cylinders (5) is fixedly provided with sealing rings (6), one surface of the glass block (2) relative to the sealing guide cylinders (5) and one surface of the device body (1) relative to the sealing rings (6) are provided with a plurality of ring sealing grooves, and the positions of the sealing rings (5) corresponding to the sealing rings and the sealing rings (7 a) are provided with sealing ring matching specifications.
2. The differential pressure sensor combined sealing structure according to claim 1, wherein the pressure measurement module comprises a central control panel (8) fixed at the top of the device body (1) and measurement diaphragms (9) installed in the middle of the glass block (2), two symmetrically arranged pressure measurement cavities (10) are formed in the glass block (2) by taking the measurement diaphragms (9) as separation, the surfaces of the two pressure measurement cavities (10) are respectively communicated with the two sealing guide cylinders (5), metal diaphragms (11) are installed in the two pressure measurement cavities (10), lead terminals (12) are electrically connected to the tops of the measurement diaphragms (9) and the metal diaphragms (11), a data socket electrically connected with the lead terminals (12) is installed in the device body (1) and corresponds to the position of each lead terminal (12), and the data end of the data socket is electrically connected with the central control panel (8).
3. The differential pressure sensor type sealing structure according to claim 1, wherein the cross section of the containing cavity is square, the cross section of the locking ring (3) is circular, a sealing rubber liner (13) matched with the device body (1) is fixedly arranged on the peripheral side surface of the locking ring (3), a threaded hole communicated with the containing cavity is fixedly formed in the bottom of the device body (1), and a threaded portion matched with the threaded hole is fixedly arranged on the peripheral side surface of the sealing rubber liner (13).
4. The differential pressure sensor combination type sealing structure according to claim 1, wherein the pressure regulating assembly comprises a pressure regulating screw rod (14) and a transmission rod (15) respectively, both ends of the pressure regulating screw rod (14) and the peripheral side surface of the transmission rod (15) are rotationally connected with the device body (1), a driven bevel gear is fixedly arranged in the middle of the pressure regulating screw rod (14), a transmission bevel gear meshed with the driven bevel gear is fixedly arranged at the tail end of the transmission rod (15), a forward thread part and a reverse thread part are symmetrically arranged on the peripheral side surface of the pressure regulating screw rod (14), the peripheral side surfaces of the forward thread part and the reverse thread part are respectively in transmission connection with the two pressure holding plates (4), and the peripheral side surfaces of the pressure holding plates (4) are in sliding connection with the device body (1).
5. The differential pressure sensor type sealing structure according to claim 1, wherein the peripheral sides of the two sealing guide cylinders (5) are respectively and slidably communicated with a pressure inlet pipe (16), and a sealing ring b (17) matched with the pressure inlet pipe (16) is fixedly arranged on the peripheral side of the sealing guide cylinder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321303702.8U CN220136545U (en) | 2023-05-26 | 2023-05-26 | Differential pressure sensor combined sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321303702.8U CN220136545U (en) | 2023-05-26 | 2023-05-26 | Differential pressure sensor combined sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220136545U true CN220136545U (en) | 2023-12-05 |
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ID=88948213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321303702.8U Active CN220136545U (en) | 2023-05-26 | 2023-05-26 | Differential pressure sensor combined sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220136545U (en) |
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2023
- 2023-05-26 CN CN202321303702.8U patent/CN220136545U/en active Active
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