CN220170428U - Anti-interference diffusion silicon pressure transmitter - Google Patents
Anti-interference diffusion silicon pressure transmitter Download PDFInfo
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- CN220170428U CN220170428U CN202321630688.2U CN202321630688U CN220170428U CN 220170428 U CN220170428 U CN 220170428U CN 202321630688 U CN202321630688 U CN 202321630688U CN 220170428 U CN220170428 U CN 220170428U
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- China
- Prior art keywords
- filter
- pressure transmitter
- silicon pressure
- diffusion silicon
- motor
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 39
- 239000010703 silicon Substances 0.000 title claims abstract description 39
- 238000009792 diffusion process Methods 0.000 title claims abstract description 38
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 239000012535 impurity Substances 0.000 claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 12
- 239000010865 sewage Substances 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000007790 scraping Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an anti-interference diffusion silicon pressure transmitter which comprises a diffusion silicon pressure transmitter body and a filter arranged outside a probe of the diffusion silicon pressure transmitter body, wherein the filter is used for filtering sewage impurities and consists of a connecting pipe, a filter cylinder fixed at the lower end of the connecting pipe, a cleaning rod rotatably arranged at the outer bottom of the filter cylinder and a waterproof box arranged at the inner bottom of the filter cylinder, a motor is arranged in the waterproof box, and an output shaft of the motor is connected with a rotating shaft of the cleaning rod. According to the utility model, the rotatable cleaning rod is arranged outside the filter cartridge, and can scrape the bottom surface and the outer circumferential side surface of the filter cartridge when the cleaning rod rotates, so that impurities on the surface of the filter cartridge are removed, excessive accumulation of the impurities after long service time is prevented, the problem that the impurities block meshes is solved, the water permeability effect inside and outside the whole filter is ensured, the factor of interference to the measurement result of the pressure membrane is reduced, and the measurement accuracy is improved.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to an anti-interference diffusion silicon pressure transmitter.
Background
The working principle of the diffusion silicon pressure transmitter is that the pressure sensor converts the pressure signal into an electric signal, the electric signal is amplified by a differential amplification and output amplifier, and finally the electric signal is converted into a 4-20mA standard current output signal which is in linear corresponding relation with the liquid level pressure of the measured medium (liquid) by V/A voltage and current. However, when the existing diffusion silicon pressure transmitter is used for measuring media such as sewage, some impurities in the sewage are very easy to enter the inside of a guide pipe of a measuring probe and damage a pressure diaphragm, so that the measuring precision is affected.
For this purpose, chinese patent application No. 202020409819.4 discloses a diffusion silicon pressure transmitter comprising: the meter comprises a meter head and a shell, wherein a digital display panel is arranged at the front end of the meter head, a control key is arranged at the lower end of the digital display panel and at the front end face of the meter head, the shell is arranged at the lower part of the meter head, mounting seats are arranged at two sides of the outer end face of the shell, a pressure diaphragm is arranged in an inner cavity of the shell, a diffusion silicon load cell is arranged at the upper end of the pressure diaphragm and in the shell, a load measuring cavity is arranged between the diffusion silicon load cell and the pressure diaphragm, a probe is arranged at the lower end of the shell, a nut is movably arranged between the probe and the shell, a test guide pipe is arranged between the lower end of the pressure diaphragm and the inner bottom end of the probe, and a filter screen is arranged at the inner lower end of the test guide pipe corresponding to the probe.
This scheme can filter the inside sewage of entering test pipe through setting up the filter screen, and then avoids impurity to cause the damage to pressure diaphragm, but after long-time the use, filters the impurity outside the filter screen and blocks up the filter screen mesh easily, and then influences the effect of permeating water of filter screen to cause the interference to pressure diaphragm's measuring result, influence measuring precision.
To this end, we propose an anti-interference diffused silicon pressure transmitter that solves the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide an anti-interference diffusion silicon pressure transmitter, which solves the problems that impurities filtered outside a filter screen easily block the meshes of the filter screen after the conventional diffusion silicon pressure transmitter is used for a long time, so that the water permeability effect of the filter screen is affected, and the measurement result of a pressure diaphragm is interfered, and the measurement accuracy is affected.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an anti-interference diffusion silicon pressure transmitter, includes diffusion silicon pressure transmitter body and installs the outside filter at diffusion silicon pressure transmitter body probe, the filter is used for filtering sewage impurity, the filter comprises connecting pipe, the cartridge filter of fixing at the connecting pipe lower extreme, the clean pole of installing in the outer bottom of cartridge filter and install the waterproof box of bottom in the cartridge filter, the inside of waterproof box is equipped with the motor, and the output shaft of motor is connected with the axis of rotation of clean pole for control clean pole clearance cartridge filter surface impurity.
In a further embodiment, the cleaning rod comprises a cross rod and a vertical rod which are fixed in a mutually perpendicular manner, and one sides of the cross rod and the vertical rod, which are close to the filter cartridge, are respectively connected with a scraping strip, and the scraping strips are tightly attached to the outer wall of the filter cartridge.
In a further embodiment, the length of the upright is greater than the height of the filter cartridge.
In a further embodiment, the scraping strip is made of one of silica gel and rubber.
In a further embodiment, one end of the cross rod is fixed with the bottom of the vertical rod, the other end of the cross rod is connected with an output shaft of the motor, and the axis of the output shaft of the motor is mutually overlapped with the axis of the filter cartridge.
In a further embodiment, a control unit is further arranged on the side edge of the motor, the control unit comprises a power supply module, a control module and a timing module, and the control unit is electrically connected with the motor.
In a further embodiment, the outer wall of the probe of the diffusion silicon pressure transmitter body is provided with an external thread, the inner wall of the connecting pipe is provided with an internal thread matched with the external thread, and the filter is movably connected with the diffusion silicon pressure transmitter body through the internal thread and the external thread.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the rotatable cleaning rod is arranged outside the filter cartridge, and can scrape the bottom surface and the outer circumferential side surface of the filter cartridge when the cleaning rod rotates, so that impurities on the surface of the filter cartridge are removed, excessive accumulation of the impurities after long service time is prevented, the problem that the impurities block meshes is solved, the water permeability effect inside and outside the whole filter is ensured, the factor of interference to the measurement result of the pressure membrane is reduced, and the measurement accuracy is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic perspective view of a filter according to the present utility model;
FIG. 3 is a schematic diagram of a semi-sectional structure of a filter according to the present utility model;
FIG. 4 is a schematic view of a partial cross-sectional structure of a filter according to the present utility model.
In the figure: 1. a diffusion silicon pressure transmitter body; 11. an external thread; 2. a filter; 21. a connecting pipe; 211. an internal thread; 22. a filter cartridge; 23. a cleaning lever; 231. a cross bar; 232. a vertical rod; 233. scraping the strip; 24. a waterproof box; 25. a motor; 26. and a control unit.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "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, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, an anti-interference diffusion silicon pressure transmitter comprises a diffusion silicon pressure transmitter body 1, a filter 2 for filtering sewage impurities is arranged outside a probe of the diffusion silicon pressure transmitter body 1, the filter 2 is composed of a connecting pipe 21, a filter cylinder 22 fixed at the lower end of the connecting pipe 21, a cleaning rod 23 rotatably arranged at the outer bottom of the filter cylinder 22 and a waterproof box 24 arranged at the inner bottom of the filter cylinder 22, wherein the connecting pipe 21 is used for being connected and fixed with the diffusion silicon pressure transmitter body 1, a motor 25 is arranged in the waterproof box 24, an output shaft of the motor 25 penetrates through the bottom of the filter cylinder 22 and is connected with a rotating shaft of the cleaning rod 23, and then the cleaning rod 23 can be driven to rotate to clean impurities on the surface of the filter cylinder 22, so that the problem of blockage is reduced.
Referring to fig. 4, in order to further improve the cleaning effect of the cleaning rod 23 on the surface of the filter cartridge 22, the cleaning rod 23 is composed of a cross rod 231 and a vertical rod 232 which are fixed perpendicular to each other, one end of the cross rod 231 is fixed to the bottom of the vertical rod 232, the other end of the cross rod 231 is connected with the output shaft of the motor 25, the axial line of the output shaft of the motor 25 is mutually overlapped with that of the filter cartridge 22, the length of the vertical rod 232 is greater than the height of the filter cartridge 22, when the cross rod 231 and the vertical rod 232 rotate, the bottom surface and the outer circumferential side surface of the filter cartridge 22 can be completely covered, cleaning four corners are reduced, in order to reduce friction damage to the filter cartridge 22 when the cleaning rod 23 cleans, scraping strips 233 are connected to one side of the cross rod 231 and the vertical rod 232, which is close to the filter cartridge 22, the scraping strips 233 are tightly attached to the outer wall of the filter cartridge 22, and the scraping strips 233 are made of one of silica gel or rubber, so that the scraping strips 233 have a certain elasticity, and the hard material is prevented from scraping the surface of the filter cartridge 22 for a long time, thereby being beneficial to prolonging the service life of the filter cartridge 22.
Referring to fig. 4, in order to further improve the convenience of cleaning the surface of the filter cartridge 22, a control unit 26 is further disposed on the side edge of the motor 25, the control unit 26 includes a power supply module, a control module and a timing module, and the control unit 26 is electrically connected with the motor 25, so that the power supply module supplies power to the control module, the timing module and the motor 25, and the timing module can perform timing, so that the control module controls the motor 25 to start cleaning operation at regular time, so that the surface of the filter cartridge 22 is cleaned regularly, and the water permeable effect of the filter cartridge 22 when filtering impurities is guaranteed.
Referring to fig. 1 and 3, in order to improve the flexibility of use of the whole device, a diffusion silicon pressure transmitter body 1 and a filter 2 are provided and can be detached, an external thread 11 is provided on the outer wall of a probe of the diffusion silicon pressure transmitter body 1, an internal thread 211 matched with the external thread 11 is provided on the inner wall of a connecting pipe 21, and a filter cartridge 22 is movably connected with the diffusion silicon pressure transmitter body 1 through the internal thread 211 and the external thread 11, so that the filter 2 and the diffusion silicon pressure transmitter body 1 can be screwed or unscrewed and detached through rotation.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides an anti-interference diffusion silicon pressure transmitter, includes diffusion silicon pressure transmitter body (1) and installs at diffusion silicon pressure transmitter body (1) outside filter (2) of probe, its characterized in that: the filter (2) is used for filtering sewage impurities, the filter (2) is composed of a connecting pipe (21), a filter cylinder (22) fixed at the lower end of the connecting pipe (21), a cleaning rod (23) rotatably installed at the outer bottom of the filter cylinder (22) and a waterproof box (24) installed at the inner bottom of the filter cylinder (22), a motor (25) is arranged in the waterproof box (24), an output shaft of the motor (25) is connected with a rotating shaft of the cleaning rod (23), and the cleaning rod (23) is used for controlling the cleaning rod (23) to clean impurities on the surface of the filter cylinder (22).
2. The tamper resistant diffusion silicon pressure transmitter of claim 1 wherein: the cleaning rod (23) consists of a cross rod (231) and a vertical rod (232) which are fixed in a mutually perpendicular mode, one sides, close to the filter cartridge (22), of the cross rod (231) and the vertical rod (232) are connected with scraping strips (233), and the scraping strips (233) are tightly attached to the outer wall of the filter cartridge (22).
3. The tamper resistant diffusion silicon pressure transmitter of claim 2 wherein: the length of the vertical rod (232) is larger than the height of the filter cartridge (22).
4. The tamper resistant diffusion silicon pressure transmitter of claim 2 wherein: the scraping strip (233) is made of one of silica gel or rubber.
5. The tamper resistant diffusion silicon pressure transmitter of claim 2 wherein: one end of the cross rod (231) is fixed with the bottom of the vertical rod (232), the other end of the cross rod (231) is connected with an output shaft of the motor (25), and the axial lead of the output shaft of the motor (25) is mutually overlapped with that of the filter cartridge (22).
6. The tamper resistant diffusion silicon pressure transmitter of claim 1 wherein: the side of the motor (25) is also provided with a control unit (26), the control unit (26) comprises a power supply module, a control module and a timing module, and the control unit (26) is electrically connected with the motor (25).
7. The tamper resistant diffusion silicon pressure transmitter of claim 1 wherein: the outer wall of the probe of the diffusion silicon pressure transmitter body (1) is provided with an external thread (11), the inner wall of the connecting pipe (21) is provided with an internal thread (211) matched with the external thread (11), and the filter (2) is movably connected with the diffusion silicon pressure transmitter body (1) through the internal thread (211) and the external thread (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321630688.2U CN220170428U (en) | 2023-06-26 | 2023-06-26 | Anti-interference diffusion silicon pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321630688.2U CN220170428U (en) | 2023-06-26 | 2023-06-26 | Anti-interference diffusion silicon pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220170428U true CN220170428U (en) | 2023-12-12 |
Family
ID=89062354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321630688.2U Active CN220170428U (en) | 2023-06-26 | 2023-06-26 | Anti-interference diffusion silicon pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220170428U (en) |
-
2023
- 2023-06-26 CN CN202321630688.2U patent/CN220170428U/en active Active
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