CN214200189U - Integrative sensor of liquid level temperature of steady state - Google Patents
Integrative sensor of liquid level temperature of steady state Download PDFInfo
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- CN214200189U CN214200189U CN202022783458.2U CN202022783458U CN214200189U CN 214200189 U CN214200189 U CN 214200189U CN 202022783458 U CN202022783458 U CN 202022783458U CN 214200189 U CN214200189 U CN 214200189U
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Abstract
The utility model belongs to the sensor field specifically is an integrative sensor of liquid level temperature of stable state. The temperature sensor is connected with the magnetic spring switch through a wire and extends out of the shell. The utility model discloses the realization is to the temperature of fluid, the real-time supervision of liquid level.
Description
Technical Field
The utility model belongs to the sensor field specifically is an integrative sensor of liquid level temperature of stable state.
Background
With the rapid development of modern industry, various sealed containers and devices are widely applied, and the real-time monitoring of the liquid level and the temperature of the liquid in the container is very important for the system.
Particularly, in a hydraulic system, if the temperature of the oil is abnormal, the performance of a rubber sealing element in the hydraulic system is deteriorated, the rubber can be swelled and softened, the aging of the rubber is accelerated, even the sealing fails, and meanwhile, bubbles are more easily generated, the lubricating oil film is damaged by the bubbles, the friction surface is sintered or the abrasion is increased, the oxidative deterioration of the hydraulic oil is accelerated, the accuracy and the sensitivity of a hydraulic element are affected, the use requirement of the hydraulic system cannot be met in severe cases, and the further deterioration causes the viscosity of the hydraulic oil to be reduced, the viscosity to be too low, the leakage of the hydraulic system to be increased, the efficiency to be reduced, and even the hydraulic system cannot normally work.
Disclosure of Invention
The utility model discloses a temperature, the liquid level information of fluid can real-time supervision to at predetermined liquid level height (stable state) department output switch volume signal, at predetermined fluid temperature department output switch volume, the analog signal of fluid temperature can also be exported simultaneously, provide the integrative sensor of liquid level temperature of a stable state.
The utility model adopts the following technical proposal: the utility model provides an integrative sensor of liquid level temperature of stable state, is including fixing the casing on the liquid container, and the casing bottom is sealed through the hole sealing bolt, and the casing lower part is provided with temperature sensor and temperature detect switch to seal through heat conduction silica gel, casing outside cover has the buoy that can reciprocate, and the buoy embeds there is magnet, and the middle part is fixed with the magnetic spring switch in the casing, and temperature sensor passes through the wire and is connected with the magnetic spring switch and extend to outside the casing.
Furthermore, the magnetic reed switch comprises a reed switch sleeved outside the normally open contact of the conducting wire, and a small magnet is fixed outside the reed switch and cannot attract the normally open contact; but the magnetic attraction is realized when the magnetic field with the same polarity is applied; the small magnet enables the contact in the magnetic control switch to maintain the attraction state, and the contact is disconnected when the magnetic control switch is subjected to a different magnetic field.
Furthermore, the temperature sensor is a thermal resistor and outputs an analog quantity temperature signal.
Furthermore, a temperature limit switch is arranged on the temperature sensor, and when the temperature of the oil is higher than a preset temperature, a switching value signal is output.
Compared with the prior art, the temperature sensor of the utility model is used for measuring the temperature of the oil and outputting the corresponding analog quantity; the temperature limit switch is used for outputting a switching value signal when the oil temperature exceeds the limit value; the magnetic reed switch can change the position of the magnetic reed switch in the shell, realize the monitoring of different liquid levels and output switching value signals; through temperature sensor, limit switch, level sensor, the real-time supervision to the temperature of fluid, liquid level is finally realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a reed switch;
in the figure, 1-a shell, 2-a magnetic reed switch, 3-a buoy, 4-a temperature sensor, 5-a hole sealing bolt, 6-a reed switch and 7-a small magnet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figure 1, the steady-state liquid level and temperature integrated sensor comprises a shell 1 fixed on a liquid container, the bottom of the shell 1 is sealed through a hole sealing bolt 5, a temperature sensor 4 and a temperature control switch are arranged on the lower portion of the shell 1 and sealed through heat-conducting silica gel, a buoy 3 capable of moving up and down is sleeved on the outer side of the shell 1, a magnet is arranged in the buoy 3, a magnetic reed switch 2 is fixed in the middle of the inner portion of the shell 1, and the temperature sensor 4 is connected with the magnetic reed switch 2 through a lead and extends out of the shell 1.
As shown in fig. 2, the reed switch 2 comprises a reed switch 6 sleeved outside a normally open contact of a conducting wire, a small magnet 7 is fixed outside the reed switch 6, and the normally open contact cannot be attracted by the small magnet 7; but the magnetic attraction is realized when the magnetic field with the same polarity is applied; the small magnet enables the contact in the magnetic control switch to maintain the attraction state, and the contact is disconnected when the magnetic control switch is subjected to a different magnetic field.
The floating ball of the sensor can drive the magnet fixed in the sensor to float up and down along with the change of the liquid level, and in the process of moving from top to bottom, the S pole of the floating ball is opposite to the N pole magnetic field of the small magnet 7, so that the reed switch 6 is kept normally open and does not act; when the floating ball moves downwards continuously, the S pole of the floating ball is the same as the S pole magnetic field of the small magnet 7, the magnetic fields are superposed, and the reed switch 6 is closed under the action of the magnetic fields; the working principle of the magnetic reed switch 2 in the process of moving the floating ball 3 in the opposite direction is the same, so that the stable state conversion of the magnetic reed switch 2 is realized.
The buoy moves up and down along with the change of the height of the surface of the oil, and when the height of the liquid level is lower than the set height of the liquid level, the contact inside the magnetic reed switch is triggered to act, so that the liquid level monitoring is realized.
The temperature sensor adopts PT100, and the temperature-controlled switch and PT100 are installed at the bottom of the sleeve pipe and finally contact with the base, thereby realizing the temperature measurement of the oil.
The temperature sensor is a thermal resistor and can output an analog quantity temperature signal.
The temperature limit switch is a temperature sensing switch and can output a switching value signal when the temperature of the oil is higher than a preset temperature.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (4)
1. The utility model provides an integrative sensor of liquid level temperature of steady state which characterized in that: including fixing casing (1) on liquid container, casing (1) bottom is sealed through hole sealing bolt (5), casing (1) lower part is provided with temperature sensor (4) and temperature detect switch, and through heat conduction silica gel sealing, casing (1) outside cover has buoy (3) that can reciprocate, buoy (3) built-in have magnet, casing (1) interior middle part is fixed with magnetic reed switch (2), temperature sensor (4) are connected with magnetic reed switch (2) through the wire and are extended to outside casing (1).
2. The integrated steady state liquid level temperature sensor of claim 1, wherein: the magnetic reed switch (2) comprises a reed switch (6) sleeved outside a normally open contact of a lead, wherein a small magnet (7) is fixed outside the reed switch (6), and the normally open contact cannot be attracted by the small magnet (7); but the magnetic attraction is realized when the magnetic field with the same polarity is applied; the small magnet enables the contact in the magnetic control switch to maintain the attraction state, and the contact is disconnected when the magnetic control switch is subjected to a different magnetic field.
3. The integrated steady state liquid level temperature sensor of claim 2, wherein: the temperature sensor (4) is a thermal resistor and outputs an analog quantity temperature signal.
4. The integrated steady state liquid level temperature sensor of claim 3, wherein: the temperature sensor (4) is provided with a temperature limit switch, and when the temperature of the oil is higher than a preset temperature, a switching value signal is output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022783458.2U CN214200189U (en) | 2020-11-26 | 2020-11-26 | Integrative sensor of liquid level temperature of steady state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022783458.2U CN214200189U (en) | 2020-11-26 | 2020-11-26 | Integrative sensor of liquid level temperature of steady state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214200189U true CN214200189U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022783458.2U Active CN214200189U (en) | 2020-11-26 | 2020-11-26 | Integrative sensor of liquid level temperature of steady state |
Country Status (1)
| Country | Link |
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| CN (1) | CN214200189U (en) |
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2020
- 2020-11-26 CN CN202022783458.2U patent/CN214200189U/en active Active
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