Adjustable liquid level and temperature integrated sensor

Abstract

The utility model relates to the technical field of liquid level and temperature integrated sensors, and discloses an adjustable liquid level and temperature integrated sensor, which comprises a liquid storage tank and a sensor shell fixed at the inner bottom of the liquid storage tank, a sensor can monitor a high liquid level and a low liquid level at the same time through a first threaded column, a second threaded column, a first adjusting plate and a second adjusting plate, and when the monitoring position of the high liquid level needs to be adjusted, the position of the first adjusting plate can be adjusted by rotating the second threaded column, so that the monitoring position of the high liquid level is adjusted; when a low-liquid-level monitoring position needs to be adjusted, the position of a second adjusting plate can be adjusted by rotating a first threaded column, so that the low-liquid-level monitoring position is adjusted, a second pressing switch or a first pressing switch can be triggered when a buoy moves upwards and downwards, and then a switching value signal is output; the use is relatively convenient, and the automatic operation of equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level and temperature integrated sensors, in particular to an adjustable liquid level and temperature integrated sensor. Background Art

[0002] A liquid level sensor is a device that measures the liquid level based on the principle of physical measurement by a float or a buoy or the liquid static pressure being proportional to the height of the liquid. It uses an isolated diffused silicon sensitive element or a ceramic capacitor pressure sensitive sensor to convert the static pressure into an electrical signal, which is then converted into a standard electrical signal after temperature compensation and linear correction to measure the liquid level. A temperature sensor (temperature transducer) is a sensor that can sense temperature and convert it into a usable output signal. The temperature of an object, air or liquid can be measured through a temperature sensor.

[0003] Through patent search, it was found that there is an adjustable liquid level and temperature integrated sensor with publication number CN214066163U. The position of the liquid level sensor is adjusted by a threaded rod to realize the monitoring of different liquid levels. However, it can only monitor the liquid level at the current position of the liquid level sensor, and cannot monitor the high liquid level and the low liquid level separately at the same time. It is relatively inconvenient to use and is not conducive to the automatic operation of the equipment. For this reason, we propose an adjustable liquid level and temperature integrated sensor to solve or improve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an adjustable liquid level and temperature integrated sensor, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical scheme: comprising a liquid storage tank, a sensor housing fixed to the bottom of the liquid storage tank, a limit rod fixed to the center position of the bottom circle of the sensor housing, a first threaded column rotatably mounted on the bottom of the sensor housing through a bearing, the first threaded column is located on one side of the limit rod, a second threaded column rotatably mounted on the bottom of the sensor housing through a bearing, the second threaded column is located on the other side of the limit rod, a first adjustment plate is slidably mounted on a position of the limit rod surface close to the top side, the second threaded column passes through the interior of the first adjustment plate and is threadedly connected with the first adjustment plate, a groove is provided at the bottom of the first adjustment plate, the second adjustment plate is slidably mounted on a position of the limit rod surface close to the bottom side, the first threaded column passes through the interior of the second adjustment plate and is threadedly connected with the second adjustment plate, a groove is provided at the top of the second adjustment plate, a float is slidably mounted on the surface of the limit rod, the float is located between the first adjustment plate and the second adjustment plate, a packaging tube is fixed to the center position of the bottom of the sensor housing, the packaging tube is located inside the limit rod, a reed switch is arranged inside the packaging tube, and a plurality of groups of reed switches are arranged inside the packaging tube.

[0006] Furthermore, the inner surface of the float is provided with a groove, and magnet blocks are fixed inside the groove, and two groups of magnet blocks are symmetrically fixed on the inner surface of the float.

[0007] Furthermore, a temperature sensor is fixed at a position close to the edge of the bottom of the sensor housing.

[0008] Furthermore, the second push switch is fixed inside the slot set at the bottom of the first adjustment plate, the first push switch is set inside the slot set at the top of the second adjustment plate, two groups of first push switches are symmetrically fixed at the top of the second adjustment plate, and two groups of second push switches are symmetrically fixed at the bottom of the first adjustment plate.

[0009] Furthermore, the first threaded column passes through the interior of the first adjustment plate and is slidably connected to the first adjustment plate.

[0010] Furthermore, the second threaded column passes through the interior of the second adjustment plate and is slidably connected to the second adjustment plate.

[0011] Furthermore, one end of the first threaded column and the second threaded column passes through the top of the sensor housing, and an adjusting bolt is fixed to the top of one end passing through the top of the sensor housing.

[0012] Compared with the prior art, the utility model has the following beneficial effects: by setting the first threaded column, the second threaded column, the first adjustment plate and the second adjustment plate, the sensor can monitor the high liquid level and the low liquid level at the same time; when the monitoring position of the high liquid level needs to be adjusted, the position of the first adjustment plate can be adjusted by rotating the second threaded column, so that the first adjustment plate drives the second push switch to move, thereby adjusting the monitoring position of the high liquid level; when the monitoring position of the low liquid level needs to be adjusted, the position of the second adjustment plate can be adjusted by rotating the first threaded column, so that the second adjustment plate drives the first push switch to move, thereby adjusting the monitoring position of the low liquid level; when the float moves upward and then downward, the second push switch or the first push switch can be triggered, so that the second push switch or the first push switch outputs a switch signal, which is relatively convenient to use and is conducive to the automatic operation of the equipment.

[0013] Compared with the prior art, the utility model also has the following beneficial effects: by arranging the reed switch and the magnet block, when the float is moved to different positions, the reed switch at the current position of the float can be magnetically adsorbed by the magnet block, so that the internal circuit of the reed switch at the position of the float is attracted and turned on, thereby outputting the switch quantization signal of the reed switch at the current position of the float, thereby indicating the liquid level inside the liquid storage tank, making it convenient for personnel to check the liquid level inside the liquid storage tank through an external display panel or indicator, without having to climb to the top side of the liquid storage tank to observe with the naked eye, thereby reducing the manpower loss of personnel during patrol. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the liquid storage tank of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the sensor housing of the utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the limit rod of the utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the packaging tube of the utility model;

[0019] Figure 6 This is an enlarged schematic diagram of the first adjustment plate structure of the utility model;

[0020] Figure 7 It is an enlarged schematic diagram of the internal structure of the buoy of the utility model;

[0021] Figure 8 It is an enlarged schematic diagram of the second adjustment plate structure of the utility model.

[0022] In the figure: 1. liquid storage tank; 2. sensor housing; 3. limit rod; 4. first threaded column; 5. first adjustment plate; 6. float; 7. second adjustment plate; 8. first push switch; 9. temperature sensor; 10. second threaded column; 11. second push switch; 12. packaging tube; 13. magnet block; 14. reed switch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-8, including a liquid storage tank 1, a sensor housing 2 fixed to the bottom of the liquid storage tank 1, a surface of the sensor housing 2 is provided with grooves, and two groups of grooves are symmetrically provided on the surface of the sensor housing 2, a temperature sensor 9 is fixed at a position near the edge of the bottom of the sensor housing 2, and the temperature of the liquid inside the sensor housing 2 can be measured by the temperature sensor 9, a limit rod 3 fixed at the center position of the bottom circle of the sensor housing 2, a first threaded column 4 rotatably installed at the bottom of the sensor housing 2 through a bearing, the first threaded column 4 is located on one side of the limit rod 3, a second threaded column 10 rotatably installed at the bottom of the sensor housing 2 through a bearing, the second threaded column 10 is located on the other side of the limit rod 3, one end of the first threaded column 4 and the second threaded column 10 passes through the top of the sensor housing 2 and an adjusting bolt is fixed to the top of one end passing through the top of the sensor housing 2, through By rotating the adjusting bolt at the top of the first threaded column 4 or the second threaded column 10, the fixed first threaded column 4 or the second threaded column 10 can be driven to rotate, and the first adjusting plate 5 is slidably installed on the surface of the limiting rod 3 near the top side, and the second threaded column 10 passes through the interior of the first adjusting plate 5 and is threadedly connected to the first adjusting plate 5. When the second threaded column 10 rotates, it will drive the threaded first adjusting plate 5 to move, and the slidably connected limiting rod 3 can limit the position of the first adjusting plate 5 to prevent the first adjusting plate 5 from rotating itself. The first threaded column 4 passes through the interior of the first adjusting plate 5 and is slidably connected to the first adjusting plate 5. The first threaded column 4 can limit the position of the first adjusting plate 5 to prevent the first adjusting plate 5 from tilting on one side during the movement, thereby improving the stability of the first adjusting plate 5 when moving. A groove is provided at the bottom of the first adjusting plate 5.

[0025] The second adjusting plate 7 is slidably installed on the surface of the limiting rod 3 near the bottom side, the first threaded column 4 passes through the interior of the second adjusting plate 7 and is threadedly connected to the second adjusting plate 7. When the first threaded column 4 rotates, it will drive the threaded second adjusting plate 7 to move, and the slidably connected limiting rod 3 can limit the position of the second adjusting plate 7 to prevent the second adjusting plate 7 from rotating itself. The second threaded column 10 passes through the interior of the second adjusting plate 7 and is slidably connected to the second adjusting plate 7. The second threaded column 10 can limit the position of the second adjusting plate 7 to prevent the second adjusting plate 7 from tilting on one side during the movement, thereby improving the second The stability of the adjustment plate 7 when it moves, the top of the second adjustment plate 7 is provided with a groove, the float 6 is slidably installed on the surface of the limit rod 3, the float 6 is located between the first adjustment plate 5 and the second adjustment plate 7, the second threaded column 10 and the first threaded column 4 pass through the interior of the float 6 and are slidably connected to the float 6, the second threaded column 10 and the first threaded column 4 can limit the position of the float 6 to prevent the float 6 from rotating itself, the inner surface of the float 6 is provided with a groove, and a magnet block 13 is fixed inside the groove. Two groups of magnet blocks 13 are symmetrically fixed on the inner surface of the float 6, and the packaging tube 12 is fixed at the center position of the circle at the bottom of the sensor housing 2 The packaging tube 12 is located inside the limit rod 3, and the reed switch 14 is arranged inside the packaging tube 12. The inside of the packaging tube 12 is filled with packaging glue, which can protect the reed switch 14 to a certain extent to prevent the limit rod 3 or the packaging tube 12 from being hit during transportation or installation, causing the reed switch 14 to collide with the inner surface of the packaging tube 12, thereby causing the reed switch 14 to be damaged. Several groups of reed switches 14 are arranged inside the packaging tube 12. The second push switch 11 is fixed inside the slot set at the bottom of the first adjustment plate 5. Two groups of second push switches 11 are symmetrically fixed at the bottom of the first adjustment plate 5. The two groups The second push switch 11 can avoid the problem of being unable to perform high liquid level monitoring when a group of second push switches 11 is abnormal or damaged. The first push switch 8 is fixed inside the slot set on the top of the second adjusting plate 7. Two groups of first push switches 8 are symmetrically fixed on the top of the second adjusting plate 7. The two groups of first push switches 8 can avoid the problem of being unable to perform low liquid level monitoring when a group of second push switches 11 is abnormal or damaged. The second push switch 11, the first push switch 8 and the reed switch 14 are existing technologies currently known in the society, and their internal structure, working principle, usage method and effect will not be described in detail here.

[0026] Working principle: when liquid is injected into the liquid storage tank 1, the float 6 will float on the top of the liquid by its own buoyancy. When the liquid level reaches the position of the first adjusting plate 5, the top of the float 6 will contact the bottom of the second push switch 11 and squeeze the second push switch 11, thereby triggering the second push switch 11 to make the second push switch 11 output a switch signal. If there is a control unit connected externally, the solenoid valve can be controlled to close the injection pipe after the control unit receives the switch signal of the second push switch 11, thereby stopping the injection of liquid into the liquid storage tank 1. The position of the first adjusting plate 5 can be adjusted by rotating the second threaded column 10 by adjusting the bolt, so that the first adjusting plate 5 drives the second push switch 11 to move, thereby adjusting the monitoring position of the high liquid level. When the liquid level decreases, the float 6 will move and the bottom of the float 6 will contact the top of the first push switch 8, thereby squeezing the first push switch 8 and punishing the first push switch 8, so that the first push switch 8 outputs a switch signal. If there is a control unit connected externally, the solenoid valve can be controlled to close the injection pipe after the control unit receives the switch signal of the second push switch 11, thereby stopping the injection of liquid into the liquid storage tank 1. The position of the first adjusting plate 5 can be adjusted by rotating the second threaded column 10 by adjusting the bolt, so that the first adjusting plate 5 drives the second push switch 11 to move, thereby adjusting the monitoring position of the high liquid level. The control unit can control the solenoid valve to open the injection pipe after the control unit receives the switching signal of the first push switch 8, so as to continue to inject liquid into the liquid storage tank 1. When the low liquid level monitoring position needs to be adjusted, the position of the second adjustment plate 7 can be adjusted by rotating the first threaded column 4, so that the second adjustment plate 7 drives the first push switch 8 to move, thereby adjusting the low liquid level monitoring position. It is relatively convenient to use and is conducive to the automatic operation of the equipment. When the float 6 moves to a different position, the reed switch 14 at the current position of the float 6 is magnetically adsorbed by the magnet block 13, so that the internal circuit of the reed switch 14 at the position of the float 6 is attracted and turned on, thereby outputting the switching quantization signal of the reed switch 14 at the current position of the float 6, thereby indicating the liquid level inside the liquid storage tank 1, so that personnel can check the liquid level inside the liquid storage tank 1 through an external display panel or indicator, without having to climb to the top side of the liquid storage tank 1 to observe with the naked eye, thereby reducing the manpower loss of personnel during inspection.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable liquid level and temperature integrated sensor, characterized in that: It comprises a liquid storage tank (1), a sensor housing (2) fixed to the bottom of the liquid storage tank (1), a limit rod (3) fixed to the center of the circle of the bottom of the sensor housing (2), a first threaded column (4) rotatably mounted on the bottom of the sensor housing (2) via a bearing, the first threaded column (4) being located on one side of the limit rod (3), and a second threaded column (10) rotatably mounted on the bottom of the sensor housing (2) via a bearing, the second threaded column (10) being located on the other side of the limit rod (3); A first adjustment plate (5), the first adjustment plate (5) being slidably mounted on a surface of the limiting rod (3) at a position close to the top side, the second threaded column (10) passing through the interior of the first adjustment plate (5) and being threadedly connected to the first adjustment plate (5), and a groove being arranged at the bottom of the first adjustment plate (5); The second adjustment plate (7) is slidably mounted on a surface of the limiting rod (3) at a position close to the bottom side, the first threaded column (4) passes through the interior of the second adjustment plate (7) and is threadedly connected to the second adjustment plate (7), and a slot is provided on the top of the second adjustment plate (7).

2. The adjustable liquid level and temperature integrated sensor according to claim 1, characterized in that: The float (6) is slidably mounted on the surface of the limit rod (3). The float (6) is located between the first adjustment plate (5) and the second adjustment plate (7). The inner surface of the float (6) is provided with a slot, and a magnet block (13) is fixed inside the slot. Two groups of magnet blocks (13) are symmetrically fixed on the inner surface of the float (6).

3. The adjustable liquid level and temperature integrated sensor according to claim 1, characterized in that: The packaging tube (12) is fixed at the center position of the bottom of the sensor housing (2), the packaging tube (12) is located inside the limit rod (3), a temperature sensor (9) is fixed at a position close to the edge of the bottom of the sensor housing (2), a reed switch (14) is arranged inside the packaging tube (12), and a plurality of groups of reed switches (14) are arranged inside the packaging tube (12).

4. The adjustable liquid level and temperature integrated sensor according to claim 1, characterized in that: The second push switch (11) is fixed inside a slot provided at the bottom of the first adjustment plate (5); the first push switch (8) is provided inside a slot provided at the top of the second adjustment plate (7), two groups of the first push switch (8) are symmetrically fixed on the top of the second adjustment plate (7), and two groups of the second push switch (11) are symmetrically fixed on the bottom of the first adjustment plate (5).

5. The adjustable liquid level and temperature integrated sensor according to claim 1, characterized in that: The first threaded column (4) passes through the interior of the first adjustment plate (5) and is slidably connected to the first adjustment plate (5).

6. The adjustable liquid level and temperature integrated sensor according to claim 1, characterized in that: The second threaded column (10) passes through the interior of the second adjustment plate (7) and is slidably connected to the second adjustment plate (7).

7. The adjustable liquid level and temperature integrated sensor according to claim 1, characterized in that: One end of the first threaded column (4) and the second threaded column (10) passes through the top of the sensor housing (2), and an adjusting bolt is fixed to the top of one end passing through the top of the sensor housing (2).

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