CN211886916U - Low water level power-off protection device for water bath tank - Google Patents

Abstract

The utility model discloses a water bath tank low water level power-off protection device, the power distribution box comprises a box body, the equal fixedly connected with mounting panel in bottom of inner chamber of the box both sides, the inboard fixedly connected with heating pipe of mounting panel, inner chamber of the box's right side is located the top fixedly connected with level sensor of mounting panel, the right side fixedly connected with box body of box, the bottom fixedly connected with PLC controller on box body right side. The utility model discloses a level sensor detects the water level, after detecting the water level and being less than the sensor position, cooperation through the AD converter, can be with signal transmission to central processing unit, central processing unit can control the cylinder and work this moment, the cylinder drives insulating clamp plate and removes, after insulating clamp plate kept away from first electrode piece, through the cooperation of spring, can drive insulating sliding sleeve and remove, insulating sliding sleeve drives first electrode piece and removes right, because first electrode piece and second electrode piece separation, consequently, the heating pipe can cut off the power supply.

Description

Low water level power-off protection device for water bath tank

Technical Field

The utility model relates to a power-off protection technical field specifically is a water bath tank low water level power-off protection device.

Background

The water bath box is mainly used for distilling, drying, concentrating and warming chemicals or biological products in a laboratory, can also be used for constant-temperature heating and other temperature tests, is a necessary tool for biology, heredity, viruses, aquatic products, environmental protection, medicines, sanitation, laboratories, analysis rooms and educational and scientific research, is short of a water level detection mechanism, cannot be found in time after being dried, is easy to damage and can cause fire disasters in serious conditions, and therefore the water bath box low-water-level power-off protection device is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a water bath tank low water level power-off protection device to the problem of proposing in solving above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a low water level power-off protection device for a water bath tank comprises a tank body, wherein mounting plates are fixedly connected to the bottoms of two sides of an inner cavity of the tank body, a heating pipe is fixedly connected to the inner side of each mounting plate, a liquid level sensor is fixedly connected to the right side of the inner cavity of the tank body and positioned at the top of each mounting plate, a box body is fixedly connected to the right side of the tank body, a PLC (programmable logic controller) is fixedly connected to the bottom of the right side of the box body, a buzzer is fixedly connected to the top of the right side of the box body, an A/D (analog/digital) converter, an air cylinder and a central processing unit are fixedly connected to the bottom of the inner cavity of the tank body from left to right in sequence, an insulating pressing plate is fixedly connected to the top of the air cylinder, a first electrode plate is contacted to the left side of the insulating, the top fixedly connected with insulating sliding sleeve of first electrode slice, the left side fixedly connected with spring of insulating sliding sleeve, the left side and the box body fixed connection of spring.

Preferably, the bottom of the inner cavity of the box body is fixedly connected with a water guide plate, and the bottom of the left side of the box body is communicated with a drain pipe.

Preferably, the top of the inner wall of the box body is fixedly connected with a placing screen plate, and the top of the box body is provided with a through groove.

Preferably, the inner cavity of the insulation sliding sleeve is connected with a sliding rod in a sliding mode, and two sides of the sliding rod are fixedly connected with the box body.

Preferably, the output end of the liquid level sensor is electrically connected with the input end of the A/D converter in a one-way mode, the output end of the A/D converter is electrically connected with the input end of the central processing unit in a one-way mode, and the output end of the central processing unit is electrically connected with the input end of the buzzer in a one-way mode.

(III) advantageous effects

Compared with the prior art, the utility model provides a low water level power-off protection device of water bath cabinet possesses following beneficial effect:

1. the utility model places the material on the top of the placing net plate through the through groove, controls the heating pipe to work through the PLC controller, the heating pipe heats water, thereby heating the material, detects the water level through the liquid level sensor, when the water level is lower than the sensor position, the signal is transmitted to the central processing unit through the matching of the A/D converter, the central processing unit controls the cylinder to work, the cylinder drives the insulating pressing plate to move, when the insulating pressing plate is far away from the first electrode plate, the insulating sliding sleeve is driven to move through the matching of the spring, the insulating sliding sleeve drives the first electrode plate to move rightwards until the insulating sliding sleeve is contacted with the third electrode plate, because the first electrode plate is separated from the second electrode plate, the heating pipe is powered off, the first electrode plate is contacted with the third electrode plate, the buzzer gives an alarm, the problem of current water bath cabinet lack water level detection mechanism, can't in time discover after the fever is dried, cause the water bath cabinet to damage easily, can cause the conflagration when serious is solved.

2. The utility model discloses a set up the water deflector, made things convenient for the discharge of water, avoided unable all exhaust phenomena, place otter board and logical groove through the setting, made things convenient for getting of material to put and heat, through setting up the slide bar, stabilized the work of insulating sliding sleeve, carried out balanced support to insulating sliding sleeve, avoided insulating sliding sleeve during operation unstable.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the case of the present invention;

fig. 3 is the schematic view of the sectional structure of the box body of the present invention.

In the figure: 1. a box body; 2. mounting a plate; 3. heating a tube; 4. a liquid level sensor; 5. placing a screen plate; 6. a through groove; 7. a box body; 8. a PLC controller; 9. an A/D converter; 10. a central processing unit; 11. a cylinder; 12. an insulating platen; 13. a first electrode sheet; 14. a second electrode sheet; 15. a slide bar; 16. an insulating sliding sleeve; 17. a spring; 18. a third electrode sheet; 19. a buzzer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a box 1, mounting panel 2, heating pipe 3, level sensor 4, place otter board 5, lead to groove 6, box body 7, PLC controller 8, AD converter 9, central processing unit 10, cylinder 11, insulating clamp plate 12, first electrode piece 13, second electrode piece 14, slide bar 15, insulating sliding sleeve 16, spring 17, third electrode piece 18 and buzzer 19 parts are general standard or the part that technical staff in the field knows, its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-3, a low water level power-off protection device for a water bath tank comprises a tank body 1, wherein a water guide plate is fixedly connected to the bottom of an inner cavity of the tank body 1, a drain pipe is communicated with the bottom of the left side of the tank body 1, water is conveniently discharged by arranging the water guide plate, and the phenomenon that the water cannot be completely discharged is avoided, a placing screen plate 5 is fixedly connected to the top of the inner wall of the tank body 1, a through groove 6 is formed in the top of the tank body 1, material taking and heating are facilitated by arranging the placing screen plate 5 and the through groove 6, mounting plates 2 are fixedly connected to the bottoms of both sides of the inner cavity of the tank body 1, a heating pipe 3 is fixedly connected to the inner sides of the mounting plates 2, a liquid level sensor 4 is fixedly connected to the right side of the inner cavity of the tank body 1 and positioned at the top of the mounting plates 2, an A/D converter 9, an air cylinder 11 and a central processing unit 10 are fixedly connected to the bottom of an inner cavity of the box body 7 from left to right in sequence, the output end of the liquid level sensor 4 is unidirectionally and electrically connected with the input end of the A/D converter 9, the output end of the A/D converter 9 is unidirectionally and electrically connected with the input end of the central processing unit 10, the output end of the central processing unit 10 is unidirectionally and electrically connected with the input end of a buzzer 19, an insulating pressing plate 12 is fixedly connected to the top of the air cylinder 11, a first electrode plate 13 is contacted with the left side of the insulating pressing plate 12, a second electrode plate 14 is contacted with the left side of the first electrode plate 13, the left side of the second electrode plate 14 is fixedly connected with the box body 7, a third electrode plate 18 is fixedly connected to the center shaft on the right side of the, slide bar 15's both sides all with box body 7 fixed connection, through setting up slide bar 15, have stabilized insulating sliding sleeve 16's work, have carried out balanced support to insulating sliding sleeve 16, have avoided insulating sliding sleeve 16 during operation unstable, insulating sliding sleeve 16's left side fixedly connected with spring 17, spring 17's left side and box body 7 fixed connection.

When the electric heating device is used, a material is placed at the top of the screen plate 5 through the through groove 6, the heating pipe 3 is controlled to work through the PLC 8, the heating pipe 3 heats water, the material is heated, the water level is detected through the liquid level sensor 4, when the water level is detected to be lower than the sensor position, a signal is transmitted to the central processing unit 10 through the matching of the A/D converter 9, the central processing unit 10 controls the air cylinder 11 to work, the air cylinder 11 drives the insulating pressing plate 12 to move, when the insulating pressing plate 12 is far away from the first electrode plate 13, the insulating sliding sleeve 16 is driven to move through the matching of the spring 17, the insulating sliding sleeve 16 drives the first electrode plate 13 to move rightwards until the first electrode plate 13 is contacted with the third electrode plate 18, because the first electrode plate 13 is separated from the second electrode plate 14, the heating pipe 3 is powered off, and the first electrode plate 13 is contacted with, buzzer 19 can send out the police dispatch newspaper, has solved current water bath and has lacked water level detection mechanism, can't in time discover after burning dry, causes the water bath to damage easily, can cause the problem of conflagration when serious.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a water bath cabinet low water level power-off protection device, includes box (1), its characterized in that: the bottom of the two sides of the inner cavity of the box body (1) is fixedly connected with a mounting plate (2), the inner side of the mounting plate (2) is fixedly connected with a heating pipe (3), the right side of the inner cavity of the box body (1) is fixedly connected with a liquid level sensor (4) at the top of the mounting plate (2), the right side of the box body (1) is fixedly connected with a box body (7), the bottom of the right side of the box body (7) is fixedly connected with a PLC (programmable logic controller) controller (8), the top of the right side of the box body (7) is fixedly connected with a buzzer (19), the bottom of the inner cavity of the box body (7) is fixedly connected with an A/D (9) converter, an air cylinder (11) and a central processing unit (10) from left to right in sequence, the top of the air cylinder (11) is fixedly connected with an insulating pressing plate (12), the left side of, the left side and the box body (7) fixed connection of second electrode piece (14), axis department fixedly connected with third electrode piece (18) on box body (7) inner chamber right side, the top fixedly connected with insulating sliding sleeve (16) of first electrode piece (13), the left side fixedly connected with spring (17) of insulating sliding sleeve (16), the left side and the box body (7) fixed connection of spring (17).

2. The low water level power-off protection device of the water bath tank as claimed in claim 1, characterized in that: the bottom of the inner cavity of the box body (1) is fixedly connected with a water guide plate, and the bottom of the left side of the box body (1) is communicated with a drain pipe.

3. The low water level power-off protection device of the water bath tank as claimed in claim 1, characterized in that: the top of the inner wall of the box body (1) is fixedly connected with a placing screen plate (5), and the top of the box body (1) is provided with a through groove (6).

4. The low water level power-off protection device of the water bath tank as claimed in claim 1, characterized in that: the inner cavity of the insulation sliding sleeve (16) is connected with a sliding rod (15) in a sliding mode, and two sides of the sliding rod (15) are fixedly connected with the box body (7).

5. The low water level power-off protection device of the water bath tank as claimed in claim 1, characterized in that: the liquid level sensor is characterized in that the output end of the liquid level sensor (4) is electrically connected with the input end of the A/D converter (9) in a one-way mode, the output end of the A/D converter (9) is electrically connected with the input end of the central processing unit (10) in a one-way mode, and the output end of the central processing unit (10) is electrically connected with the input end of the buzzer (19) in a one-way mode.

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