CN220472743U - High leakproofness liquid level changer - Google Patents
High leakproofness liquid level changer Download PDFInfo
- Publication number
- CN220472743U CN220472743U CN202321747757.8U CN202321747757U CN220472743U CN 220472743 U CN220472743 U CN 220472743U CN 202321747757 U CN202321747757 U CN 202321747757U CN 220472743 U CN220472743 U CN 220472743U
- Authority
- CN
- China
- Prior art keywords
- connecting cylinder
- shell
- liquid level
- circuit board
- locking wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 239000003292 glue Substances 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to the technical field of transmitters and discloses a high-tightness liquid level transmitter which comprises a shell, a base connected with the lower end of the shell and a locking wire connector connected with the upper end of the shell, wherein a core is arranged in the base, a circuit board connected with the core is arranged in the shell, a wire harness on the circuit board penetrates through the locking wire connector and stretches out of the shell, a connecting sleeve is arranged at the upper end of the shell, the locking wire connector stretches into the connecting sleeve and is in threaded connection with the connecting sleeve, a sealing gasket sleeved outside the wire harness is arranged at the bottom of the connecting sleeve, an annular cavity is formed in the connecting sleeve at a position between the sealing gasket and the lower end of the locking wire connector, and sealing glue is filled in the annular cavity. The utility model has the beneficial effects of good sealing performance, convenient assembly and high production efficiency.
Description
Technical Field
The utility model relates to the technical field of transmitters, in particular to a high-tightness liquid level transmitter.
Background
The liquid level transducer is based on the principle that the pressure generated by liquids with different specific gravities at different heights is in linear relation, and can accurately measure and transmit the volume, the liquid height and the weight of water, oil and paste. The use environment of the liquid level transmitter is a liquid medium environment, so that the requirement on the tightness is very high, in order to enhance the tightness, a conical sealing ring is arranged at the joint of a locking wire joint and a shell to perform first sealing, and then a circuit board inside a shell is filled with glue to perform second sealing, but the liquid level transmitter is in liquid for a long time, and the liquid slowly permeates into the shell through a wire skin; and the circuit board inside the casing still needs to overlap the pyrocondensation pipe before the encapsulating, then seals the opening part of pyrocondensation pipe with the sticky tape, just can the encapsulating afterwards, still need take off the sticky tape after the encapsulating, and whole sealing process is very loaded down with trivial details to lead to the product to assemble very troublesome, production efficiency is low.
Disclosure of Invention
The utility model provides the high-tightness liquid level transmitter with good sealing performance, convenient assembly and high production efficiency, which aims to solve the problems that the sealing process of the liquid level transmitter in the prior art is very complex and the production efficiency is seriously influenced.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a high leakproofness liquid level changer, includes the casing, the base of being connected with the casing lower extreme, the locking wire joint of being connected with the casing upper end, be equipped with the core in the base, be equipped with the circuit board of being connected with the core in the casing, pencil on the circuit board passes the locking wire joint and stretches out outside the casing, the upper end of casing is equipped with the adapter sleeve, the locking wire joint stretches into in the adapter sleeve with adapter sleeve threaded connection, the bottom of adapter sleeve is equipped with the cover and establishes the sealing washer in the pencil outside, the position that is located between sealing washer and the locking wire joint lower extreme forms the annular chamber in the adapter sleeve, the annular intracavity is filled with the sealant. The sealing gasket is firstly filled into the connecting sleeve between the shell and the locking wire connector, and the sealing glue is refilled, so that the surface skin, the sealing glue and the connecting sleeve of the wire harness are connected together, and finally the locking wire connector is screwed on, double sealing is realized between the shell and the locking wire connector, and even if the sealing gasket is used in liquid, the liquid cannot enter the shell, so that glue filling operation on a circuit board in the shell is omitted, the whole assembly is more convenient, and the production efficiency is greatly improved.
Preferably, the upper end of the base extends to form a connecting cylinder which extends into the shell, and the outer wall of the connecting cylinder is in threaded connection with the inner wall of the shell; the outer wall of the connecting cylinder is provided with a plurality of annular grooves, and sealing rings are arranged in the annular grooves. The base and the shell are connected in a sealing way through the connecting cylinder and the sealing ring, so that the sealing performance is good, and liquid is not easy to infiltrate into the shell.
Preferably, the core is positioned in the connecting cylinder, a compression ring is arranged on the inner side of the upper end of the connecting cylinder, the compression ring is in threaded connection with the connecting cylinder, and the lower end of the compression ring is abutted with the core; the center of the base is provided with a medium through hole, and a sealing ring is arranged between the side wall of the core body and the connecting cylinder. The core body is positioned through the pressure spring, and meanwhile, a sealing ring is arranged between the core body and the inner wall of the connecting cylinder for further sealing.
Preferably, the upper end of the pressing ring extends to form a connecting sheet, the lower end of the circuit board is connected with the connecting sheet, and the surface of the circuit board is coated with three-proofing glue. The connecting piece on the clamping ring is used for installing and positioning the circuit board, and meanwhile, three-proofing glue is coated on the surface of the circuit board, and the three-proofing glue is used for waterproof sealing of the circuit board.
Preferably, the lower end of the base extends to form a threaded joint, a bottom cover is connected to the threaded joint, and a plurality of drainage holes are formed in the bottom cover. The bottom cover plays a role in protecting the core body, and when the liquid-filled type water dispenser is used, the liquid enters the detection part of the core body from the drainage hole.
Therefore, the utility model has the beneficial effects of good sealing performance, convenient assembly and high production efficiency.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a partially enlarged schematic view of fig. 1 at a.
Fig. 3 is a partially enlarged schematic view of fig. 1 at B.
In the figure: the device comprises a shell 1, a connecting sleeve 100, an annular cavity 101, a base 2, a medium through hole 200, a connecting cylinder 20, an annular groove 21, a sealing ring 22, a threaded joint 23, a locking wire joint 3, a core body 4, a circuit board 5, a wire harness 6, a sealing gasket 7, a sealing glue 8, a pressure ring 9, a connecting sheet 90, a sealing ring 10, a bottom cover 11 and a drainage hole 110.
Detailed Description
The utility model is further described with reference to the drawings and detailed description which follow:
the high-tightness liquid level transmitter comprises a shell 1, a base 2 connected with the lower end of the shell, and a locking wire connector 3 connected with the upper end of the shell, wherein a core 4 is arranged in the base 2, a circuit board 5 connected with the core is arranged in the shell, a wire harness 6 on the circuit board 5 penetrates through the locking wire connector to extend out of the shell, a connecting sleeve 100 is arranged at the upper end of the shell 1, the locking wire connector extends into the connecting sleeve to be in threaded connection with the connecting sleeve, a sealing gasket 7 sleeved on the outer side of the wire harness is arranged at the bottom of the connecting sleeve, an annular cavity 101 is formed in the connecting sleeve 100 at a position between the sealing gasket and the lower end of the locking wire connector, and sealing glue 8 is filled in the annular cavity.
As shown in fig. 1 and 3, the upper end of the base 2 extends to form a connecting cylinder 20 extending into the shell, and the outer wall of the connecting cylinder is in threaded connection with the inner wall of the shell; the outer wall of the connecting cylinder is provided with a plurality of annular grooves 21, and sealing rings 22 are arranged in the annular grooves; the core body 4 is positioned in the connecting cylinder, the inner side of the upper end of the connecting cylinder is provided with a press ring 9, the press ring is in threaded connection with the connecting cylinder, and the lower end of the press ring is abutted with the core body; the center of the base 2 is provided with a medium through hole 200, and a sealing ring 10 is arranged between the side wall of the core 4 and the connecting cylinder; the upper end of the compression ring 9 extends to form a connecting sheet 90, the lower end of the circuit board 5 is fixedly connected with the connecting sheet, and the surface of the circuit board is coated with three-proofing glue. The lower end of the base 2 extends to form a threaded joint 23, a bottom cover 11 is connected to the threaded joint, and a plurality of drainage holes 110 are formed in the bottom cover.
The principle of the utility model is as follows, in combination with the accompanying drawings: firstly, a sealing gasket is arranged in a connecting sleeve between the shell and the locking wire connector, and sealing glue is refilled, so that the surface skin of the wire harness, the sealing glue and the connecting sleeve are connected together, and finally, the locking wire connector is screwed on, and double sealing is realized between the shell and the locking wire connector; the shell and the base are sealed by a sealing ring 22 outside the connecting cylinder, and the core and the base are sealed by a sealing ring 10; the surface of the circuit board is coated with three-proofing glue for water resistance; the sealing performance of the whole liquid level transmitter is obviously improved, the glue filling operation of a circuit board is omitted, the assembly process (sealing process) is greatly simplified, the whole assembly is more convenient, and the production efficiency is further improved.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the upper, lower, left, right, inner, outer, one end, the other end, etc. are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of more clearly describing the technical solution of the present utility model, and are not meant to indicate or imply that the device or element to be referred to must be provided with a specific direction, be configured and operated in a specific orientation, and should not be construed as limiting the present utility model.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.
Claims (5)
1. The utility model provides a high leakproofness liquid level changer, includes the casing, the base of being connected with the casing lower extreme, the locking wire joint of being connected with the casing upper end, be equipped with the core in the base, be equipped with the circuit board of being connected with the core in the casing, pencil on the circuit board passes the locking wire joint and stretches out outside the casing, characterized by, the upper end of casing is equipped with the adapter sleeve, locking wire joint stretches into in the adapter sleeve with adapter sleeve threaded connection, the bottom of adapter sleeve is equipped with the cover and establishes the sealing gasket in the pencil outside, the position that is located between sealing gasket and the locking wire joint lower extreme forms the annular chamber in the adapter sleeve, the annular intracavity is filled with the sealant.
2. The high tightness liquid level transmitter of claim 1 wherein the upper end of the base extends to form a connecting cylinder which extends into the housing, and the outer wall of the connecting cylinder is in threaded connection with the inner wall of the housing; the outer wall of the connecting cylinder is provided with a plurality of annular grooves, and sealing rings are arranged in the annular grooves.
3. The high-tightness liquid level transmitter of claim 2, wherein the core is positioned in the connecting cylinder, a compression ring is arranged on the inner side of the upper end of the connecting cylinder, the compression ring is in threaded connection with the connecting cylinder, and the lower end of the compression ring is abutted with the core; the center of the base is provided with a medium through hole, and a sealing ring is arranged between the side wall of the core body and the connecting cylinder.
4. The high-tightness liquid level transmitter of claim 3, wherein the upper end of the compression ring extends to form a connecting sheet, the lower end of the circuit board is connected with the connecting sheet, and the surface of the circuit board is coated with three-proofing glue.
5. The high tightness liquid level transmitter of claim 1, 2, 3 or 4, wherein the lower end of the base extends to form a screwed joint, a bottom cover is connected to the screwed joint, and a plurality of drainage holes are arranged on the bottom cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321747757.8U CN220472743U (en) | 2023-07-04 | 2023-07-04 | High leakproofness liquid level changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321747757.8U CN220472743U (en) | 2023-07-04 | 2023-07-04 | High leakproofness liquid level changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220472743U true CN220472743U (en) | 2024-02-09 |
Family
ID=89796948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321747757.8U Active CN220472743U (en) | 2023-07-04 | 2023-07-04 | High leakproofness liquid level changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220472743U (en) |
-
2023
- 2023-07-04 CN CN202321747757.8U patent/CN220472743U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |