CN209961273U - Speed type flowmeter capable of detaching core machine - Google Patents
Speed type flowmeter capable of detaching core machine Download PDFInfo
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- CN209961273U CN209961273U CN201920544772.XU CN201920544772U CN209961273U CN 209961273 U CN209961273 U CN 209961273U CN 201920544772 U CN201920544772 U CN 201920544772U CN 209961273 U CN209961273 U CN 209961273U
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- stainless steel
- steel shell
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- sealing ring
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Abstract
The utility model belongs to the instrument and meter field especially relates to a speed formula flowmeter of detachable core machine formula, including base member, gauge outfit and inductive probe. The induction probe is characterized in that a metal sealing ring is arranged between the stainless steel shell of the induction probe and the inner wall of the mounting hole where the stainless steel shell is located, the outer side of the stainless steel shell and the inner wall of the mounting hole are correspondingly provided with circular-arc-shaped annular grooves with cross sections corresponding to the metal sealing ring, the outer screwed joint is screwed down on a base body, the stainless steel shell moves downwards under the pushing of the lower end face of the outer screwed joint, and the deformed metal sealing ring is filled in the annular grooves. The utility model discloses a metal seal ring after the plastic deformation fixes the stainless steel shell on the base member, and this simple structure is practical, not only has extremely reliable sealing performance, and easy processing moreover. In addition, the deformed metal sealing ring plays a good role in connection, so that the stainless steel shell is connected to the base body.
Description
Technical Field
The utility model belongs to the instrument and meter field especially relates to a speed formula flowmeter of detachable core machine formula.
Background
The vortex flowmeter is a common speed flowmeter, an induction probe is arranged on the vortex flowmeter, a stainless steel shell is arranged on the outer side of the induction probe, and the stainless steel shell is inserted into and fixedly installed on a base body, so that the induction probe is fixed on the base body. In order to ensure the sealing performance and the bearing capacity of the joint of the stainless steel shell and the base body, the stainless steel shell is mostly welded on the base body through argon arc welding. However, for the use environment which needs to bear higher pressure, the welding quality of the welding position must be absolutely guaranteed, any flaw is not allowed, otherwise the hidden danger of pressure leakage is easily caused, therefore, the welding process has higher requirements on the technical level of welders, and the labor cost is undoubtedly increased. In addition, when the pressure in the pipeline suddenly changes, the pipeline and the vortex shedding flowmeter connected in series on the pipeline vibrate, in the prior art, the meter head and the base body of the vortex shedding flowmeter are in rigid connection, and the vibration is transmitted to the meter head and then may damage precision components in the meter head.
Disclosure of Invention
The utility model provides a speed formula flowmeter of detachable core machine formula to solve the problem that provides among the prior art.
The utility model provides a technical problem adopt following technical scheme to realize: the utility model provides a can detach speed formula flowmeter of core machine formula, including base member, gauge outfit and inductive probe, inductive probe is connected with the gauge outfit electricity, and inductive probe's structure includes stainless steel shell and sensor, and the stainless steel shell is inserted in the mounting hole on the base member lateral wall and fixed connection is on the base member, be provided with the branch between gauge outfit and the base member, the gauge outfit is installed on the base member through the branch, and the middle part of branch is provided with the screw thread loose joint, is provided with wave spring between two terminal surfaces of being connected by the screw thread loose joint, the lower extreme of branch is provided with the external screw thread joint, and the branch passes through the external screw thread joint and;
the induction probe is characterized in that a metal sealing ring is arranged between a stainless steel shell of the induction probe and the inner wall of the mounting hole where the stainless steel shell is located, the outer side of the stainless steel shell and the inner wall of the mounting hole are correspondingly provided with circular-arc-shaped annular grooves with cross sections corresponding to the metal sealing ring, the external thread joint is screwed down on a base body, the stainless steel shell moves downwards under the pushing of the lower end face of the external thread joint, and then the metal sealing ring is extruded to generate plastic deformation, and the deformed metal sealing ring is filled in the annular grooves.
The metal sealing ring is made of brass with the mark number of H62. In the stainless steel shell, the gap between the sensor and the stainless steel shell is filled with epoxy resin.
The utility model has the advantages that:
1. the utility model discloses a metal seal ring after the plastic deformation fixes the stainless steel shell on the base member, and this simple structure is practical, not only has extremely reliable sealing performance, and easy processing moreover. In addition, the deformed metal sealing ring plays a good role in connection, so that the stainless steel shell is connected to the base body.
2. The utility model discloses set up the screw thread loose joint and set up wave spring in the screw thread loose joint in the central authorities of branch, this structure has good cushioning effect on the one hand, and the vibrations of reducible gauge outfit prevent that the gauge outfit is impaired because of vibrations, and on the other hand makes the gauge outfit can be at the certain limit internal rotation to the reading of being convenient for. In addition, the arrangement of the threaded movable joint can avoid knotting of a lead used for connecting the induction probe when the external threaded joint is screwed down.
3. The utility model discloses the space packing between sensor and stainless steel shell has epoxy, is favorable to improving stainless steel shell's compressive capacity.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an enlarged view of the structure at the induction probe of fig. 1.
In the figure: 1-substrate, 2-external thread joint, 3-thread movable joint, 4-wave spring, 5-gauge outfit, 6-stainless steel shell, 7-sensor, 8-epoxy resin, 9-support rod, 10-lead and 11-metal sealing ring.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
this embodiment includes base member 1, gauge outfit 5 and inductive probe, and inductive probe is connected with gauge outfit 5 electricity, and inductive probe's structure includes stainless steel shell 6 and sensor 7, and stainless steel shell 6 inserts in the mounting hole on base member 1 lateral wall and fixed connection is on base member 1. The above is a common structure in the prior art, and is not described herein again.
Be provided with branch 9 between gauge outfit 5 and the base member 1, gauge outfit 5 passes through branch 9 to be installed on base member 1, and the middle part of branch 9 is provided with screw thread union 3, is provided with wave spring 4 between two terminal surfaces that are connected by screw thread union 3, the lower extreme of branch 9 is provided with external thread joint 2, and branch 9 passes through external thread joint 2 and connects on base member 1. The utility model discloses set up screw thread union 3 and set up wave spring 4 in screw thread union 3 at branch 9 central authorities, this structure has good cushioning effect on the one hand, and reducible gauge outfit 5's vibrations prevent that gauge outfit 5 is impaired because of vibrations, and on the other hand makes gauge outfit 5 can be at the certain limit internal rotation to the reading of being convenient for. In addition, the arrangement of the threaded movable joint 4 can avoid the knotting of the conducting wire 10 for connecting the induction probe when the external threaded joint 2 is screwed down.
Be provided with metal seal ring 11 between inductive probe's stainless steel shell 6 and the inner wall of its place mounting hole, the outside of stainless steel shell 6 with on the inner wall of mounting hole with metal seal ring 11 corresponds and is provided with the cross-section for convex ring channel, external screwed joint 2 at the in-process of screwing up toward base member 1, stainless steel shell 6 moves down under the promotion of external screwed joint 2 lower terminal surface, and then extrudees metal seal ring 11 and makes it produce plastic deformation, metal seal ring 11 after the deformation is filled the ring channel in. The utility model discloses a metal seal ring 11 after the plastic deformation fixes stainless steel shell 6 on base member 1, and this simple structure is practical, not only has extremely reliable sealing performance, easy to process moreover. In addition, the deformed metal seal ring 11 plays a good role in connection, thereby connecting the stainless steel case 6 to the base body 1.
The metal sealing ring 11 is made of brass with the mark of H62, the hardness of the brass is moderate, the stainless steel shell 6 can still be separated from the base body 1 in an external force applying mode after being installed, the core machine can be detached, and dirt on the stainless steel shell 6 can be conveniently cleaned.
In the stainless steel shell 6, the gap between the sensor 7 and the stainless steel shell 6 is filled with epoxy resin 8. The utility model discloses space packing between sensor 7 and stainless steel shell 6 has epoxy 8, is favorable to improving stainless steel shell 6's compressive capacity.
Claims (3)
1. The utility model provides a speed formula flowmeter of detachable core machine formula, includes base member (1), gauge outfit (5) and inductive probe, inductive probe is connected with gauge outfit (5) electricity, and inductive probe's structure includes stainless steel shell (6) and sensor (7), and stainless steel shell (6) are inserted in the mounting hole on base member (1) lateral wall and fixed connection is on base member (1), its characterized in that: a supporting rod (9) is arranged between the gauge head (5) and the base body (1), the gauge head (5) is installed on the base body (1) through the supporting rod (9), a threaded movable joint (3) is arranged in the middle of the supporting rod (9), a wave spring (4) is arranged between two end faces connected by the threaded movable joint (3), an external threaded joint (2) is arranged at the lower end of the supporting rod (9), and the supporting rod (9) is connected to the base body (1) through the external threaded joint (2);
be provided with metal seal ring (11) between inductive probe's stainless steel shell (6) and the inner wall of its place mounting hole, the outside of stainless steel shell (6) with on the inner wall of mounting hole with metal seal ring (11) correspond and are provided with the cross-section for convex ring channel, external thread joint (2) in the in-process of screwing up toward base member (1), stainless steel shell (6) move down under the promotion of external thread joint (2) terminal surface, and then extrusion metal seal ring (11) make it produce plastic deformation, metal seal ring (11) after the deformation are filled in the ring channel.
2. A detachable core-machine type flowmeter according to claim 1, wherein: the metal sealing ring (11) is made of brass with the mark number of H62.
3. A detachable core-machine type flowmeter according to claim 1, wherein: in the stainless steel shell (6), the gap between the sensor (7) and the stainless steel shell (6) is filled with epoxy resin (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544772.XU CN209961273U (en) | 2019-04-19 | 2019-04-19 | Speed type flowmeter capable of detaching core machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544772.XU CN209961273U (en) | 2019-04-19 | 2019-04-19 | Speed type flowmeter capable of detaching core machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209961273U true CN209961273U (en) | 2020-01-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920544772.XU Active CN209961273U (en) | 2019-04-19 | 2019-04-19 | Speed type flowmeter capable of detaching core machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209961273U (en) |
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2019
- 2019-04-19 CN CN201920544772.XU patent/CN209961273U/en active Active
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