Novel liquid level transmitter
By using a linkage mechanism between the suspended ball and the detection rod, and the heating air circulation of the antifreeze unit, the problem of icing in traditional liquid level monitoring equipment at low temperatures has been solved, thus achieving accuracy and stability in liquid level measurement.
Patent Information
- Application Number
- CN202520000684.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Traditional liquid level monitoring equipment is prone to freezing in low-temperature environments, which can cause the equipment to malfunction, affect the continuity and stability of production, and even pose safety hazards.
The system employs a linkage mechanism between a suspended ball and a detection rod, combined with precise conversion by a pressure sensor, and an antifreeze unit that uses heated air circulation to prevent icing, ensuring stable equipment operation.
It achieves accuracy and stability in liquid level measurement, prevents the detection rod and suspension ball from freezing in low-temperature environments, and ensures continuous and stable operation of the equipment.
Smart Images
Figure CN223636949U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid level transmitter technical field, concretely is a novel liquid level transmitter. BACKGROUND
[0002] In modern industrial production, liquid level measurement is an indispensable link in many process flows, whether it is chemical, petroleum, pharmaceutical or food processing industry, etc.
[0003] Particularly in some special environment, such as low temperature, humid or outdoor container, the traditional liquid level monitoring equipment often can not meet the requirements; for example, in the winter of northern region, due to the extremely low temperature, the detection component of liquid level monitoring equipment is easy to freeze, leading to the equipment unable to work normally, even damage, which not only affects the continuity and stability of production, but also may bring safety hazards, therefore, we propose a novel liquid level transmitter. UTILITY MODEL CONTENTS
[0004] In view of the problems existing in the prior art, the utility model discloses a novel liquid level transmitter, adopts the technical scheme, including mounting plate and liquid level transmitter wiring drum, the four corners of mounting plate are provided with mounting hole respectively, the bottom left end of mounting plate is provided with detection tube, the bottom of detection tube is conical structure, the through hole provided in the bottom of detection tube is slidably installed with detection rod, the detection rod is hollow structure, the bottom of detection rod is communicated and is provided with suspending ball, the top of detection rod is fixedly installed with guide plate, and the rear end of guide plate is slidably connected with the guide strip provided in the inner side of detection tube, the top of detection tube is provided with liquid level transmitter wiring drum, the liquid level transmitter wiring drum is fixedly installed on the top of mounting plate, and the bottom of liquid level transmitter wiring drum is located on the inner top of detection tube, the bottom of liquid level transmitter wiring drum is provided with detection unit, the bottom of detection unit is movably contacted with the top of guide plate, the top right of detection tube is provided with connecting bin, the inside of connecting bin is provided with anti-freezing unit, the bottom of anti-freezing unit is communicated with the connecting hose provided in the inside of detection tube, and the bottom of connecting hose passes through the groove provided in the right end of guide plate and is communicated with the top right of detection rod.
[0005] As a preferred technical scheme of the utility model, the detection unit contains fixed pipe, compression spring, pressing plate, pressure sensor, push plate and contact lever, the fixed pipe is fixedly installed at the bottom of liquid level transmitter wiring drum, the inside top of fixed pipe is fixedly installed with compression spring, the bottom of compression spring is fixedly connected with the slidingly installed pressing plate of the inside bottom of fixed pipe, the bottom center of pressing plate is fixedly installed with pressure sensor, the lower side of pressure sensor is provided with contact lever, the contact lever is slidingly installed in the sliding hole provided in the bottom center of fixed pipe, the top of contact lever is provided with push plate, the top of push plate is movably contacted with the bottom of pressure sensor, the bottom of contact lever is movably contacted with the top of guide plate.
[0006] As a preferred technical scheme of the utility model, the anti-freezing unit contains air pump, air pipe, heating cylinder, electric heating wire and first exhaust pipe, the heating cylinder is arranged at the inside bottom of connecting bin, the inside of heating cylinder is spirally provided with electric heating wire, the top of heating cylinder is provided with air pipe, the other end of air pipe is fixedly connected with the exhaust end of air pump fixedly installed at the top right end of mounting plate through the through hole provided at the top of mounting plate, the air inlet end provided at the rear right end of air pump is provided with air suction pipe, the left bottom of heating cylinder is provided with first exhaust pipe, the first exhaust pipe is "L" shaped structure, the other end of first exhaust pipe is communicated with the top of connecting hose.
[0007] As a preferred technical scheme of the utility model, the top left end of first exhaust pipe is communicated with second exhaust pipe, the second exhaust pipe is "Z" shaped structure, the other end of second exhaust pipe is located at the top of mounting plate, and the other end of second exhaust pipe is provided with electromagnetic valve.
[0008] As a preferred technical scheme of the utility model, the suspension ball is elastic hollow rubber ball, the outside surface of suspension ball is uniformly provided with a plurality of tapered blocks.
[0009] As a preferred technical scheme of the utility model, further include controller, the controller is fixedly installed at the left front end of the upper surface of mounting plate, the output end of controller is electrically connected with the input end of air pump, electric heating wire and electromagnetic valve, the input end of controller is electrically connected with the output end of pressure sensor and external power supply.
[0010] The utility model discloses a beneficial effect: the utility model through the linkage mechanism of suspension ball and detection lever, the accurate conversion of pressure sensor is combined, realizes accurate measurement to the liquid level in container, improves the precision of liquid level monitoring, the guide plate of detection lever top and the guide strip slidingly connected in detection pipe, effectively prevent the shaking of detection lever in the process of lifting, ensure the stability of measurement, the anti-freezing unit circulates through heating air, effectively prevent the icing problem of detection lever and suspension ball in low temperature environment, guarantee the continuous stable operation of equipment. Attached Figure Description
[0011] Fig. 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Fig. 2 This is a schematic cross-sectional view of the present invention.
[0013] Fig. 3 This is a partially enlarged structural diagram of part A of this utility model.
[0014] In the diagram: 1. Mounting plate; 2. Level transmitter junction box; 3. Controller; 4. Detection tube; 5. Detection unit; 51. Fixing tube; 52. Compression spring; 53. Pressure plate; 54. Pressure sensor; 55. Push plate; 56. Contact rod; 6. Antifreeze unit; 61. Air pump; 62. Air supply pipe; 63. Heating cylinder; 64. Heating wire; 65. First exhaust pipe; 7. Second exhaust pipe; 8. Solenoid valve; 9. Connecting hose; 10. Detection rod; 11. Guide plate; 12. Suspension ball; 13. Conical block; 14. Connecting chamber; 15. Guide bar; 16. Mounting hole. Detailed Implementation
[0015] Example 1
[0016] like Figs. 1 to 3The utility model discloses a novel liquid level transmitter, adopts the technical scheme, including mounting plate 1 and liquid level transmitter wiring drum 2, the four corners of mounting plate 1 are provided with mounting hole 16 respectively, and the bottom left end of mounting plate 1 is provided with detection tube 4, the bottom of detection tube 4 is conical structure, and the through -hole that sets up in the bottom of detection tube 4 is slidably installed with detection rod 10, and detection rod 10 is hollow structure, and the bottom of detection rod 10 is provided with the suspension ball 12 of intercommunication, and the top of detection rod 10 is fixedly installed with guide plate 11, and the rear end of guide plate 11 is slidably connected with the guide strip 15 of the inboard of detection tube 4, and the top of detection tube 4 is provided with liquid level transmitter wiring drum 2, and liquid level transmitter wiring drum 2 is fixedly installed at the top of mounting plate 1, and the bottom of liquid level transmitter wiring drum 2 is located at the inboard top of detection tube 4, and the bottom of liquid level transmitter wiring drum 2 is provided with detection unit 5, and the bottom of detection unit 5 is movably contacted with the top of guide plate 11, and detection unit 5 includes fixed tube 51, compression spring 52, pressing plate 53, pressure sensor 54, push plate 55 and contact rod 56, fixed tube 51 is fixedly installed at the bottom of liquid level transmitter wiring drum 2, and the inboard top of fixed tube 51 is fixedly installed with compression spring 52, and the bottom of compression spring 52 is fixedly connected with the pressing plate 53 of the inboard bottom of fixed tube 51 slidably installed, and the bottom center of pressing plate 53 is fixedly installed with pressure sensor 54, and the below of pressure sensor 54 is provided with contact rod 56, and contact rod 56 is slidably installed in the slide hole of the bottom center of fixed tube 51, and the top of contact rod 56 is provided with push plate 55, and the top of push plate 55 is movably contacted with the bottom of pressure sensor 54, and the bottom of contact rod 56 is movably contacted with the top of guide plate 11, and the lifting of suspension ball 12 will drive detection rod 10 to slide in detection tube 4, simultaneously, because the guide plate 11 of the top of detection rod 10 is slidably connected with the guide strip 15 in detection tube 4, thereby can ensure that detection rod 10 keeps stable during the lifting, when guide plate 11 moves upwards, it will push contact rod 56 and push plate 55 to move upwards, and then compression spring 52 is compressed and makes the pressure sensor 54 of the bottom of pressing plate 53 to be pressed, and pressure sensor 54 will convert the pressure received into electric signal, and the top of the right side of detection tube 4 is provided with connecting bin 14, and the inside of connecting bin 14 is provided with anti -freezing unit 6, and the bottom of anti -freezing unit 6 is communicated with the connecting hose 9 of the inside of detection tube 4, and the bottom of connecting hose 9 passes through the recess of the right end of guide plate 11 and is communicated with the right side top of detection rod 10, and anti -freezing unit 6 includes air pump 61, gas delivery pipe 62, heating cylinder 63, electric heating wire 64 and first exhaust pipe 65, heating cylinder 63 is set up in the inboard bottom of connecting bin 14, and the inside of heating cylinder 63 is provided with electric heating wire 64 spirally, and the top of heating cylinder 63 is provided with gas delivery pipe 62, and the other end of gas delivery pipe 62 is fixedly connected with the exhaust end of air pump 61 of fixed installation in the right end of the top of mounting plate 1 through the through -hole of the top of mounting plate 1, and the air inlet end of the rear right end of air pump 61 is provided with suction pipe, and the left bottom of heating cylinder 63 is provided with first exhaust pipe 65,The first exhaust pipe 65 is "L" shaped structure, the other end of the first exhaust pipe 65 is communicated with the top of the connecting hose 9, through the operation of the air pump 61, the air pump 61 suction end of the suction pipe sends the external air into the heating cylinder 63 through the air pipe 62, so that the heating wire 64 heats the air, and the heated air enters the detection rod 10 through the first exhaust pipe 65 and the connecting hose 9, prevents the outside from being connected with the bottom of the detection pipe 4, the suspension ball 12 is a hollow elastic rubber ball, the outer surface of the suspension ball 12 is uniformly provided with a plurality of tapered blocks 13, through the setting of the tapered block 13, when the suspension ball 12 inside inflation, the tapered block 13 can easily break the thin ice attached to the surface of the suspension ball 12; when the heated air needs to be discharged, the top left end of the first exhaust pipe 65 is communicated with the second exhaust pipe 7, the second exhaust pipe 7 is "Z" shaped structure, the other end of the second exhaust pipe 7 is located at the top of the mounting plate 1, and the other end of the second exhaust pipe 7 is provided with a solenoid valve 8, by opening the solenoid valve 8, the air in the detection rod 10 and the suspension ball 12 is discharged through the second exhaust pipe 7, further comprising a controller 3, the controller 3 is fixedly installed on the upper surface of the left front end of the mounting plate 1, the output end of the controller 3 is electrically connected with the input end of the air pump 61, the heating wire 64 and the solenoid valve 8, the input end of the controller 3 is electrically connected with the output end of the pressure sensor 54 and the external power supply, through the setting of the controller 3, the staff can control the air pump 61, the heating wire 64 and the solenoid valve 8 respectively, at the same time, the controller 3 can receive, process and display the signal detected by the pressure sensor 54, reflecting the current liquid level.
[0017] The working principle of the utility model is: firstly, the novel liquid level transmitter is installed on the external container, the detection tube 4 is placed in the container, when the liquid level in the container changes, because the suspension ball 12 is an elastic air rubber ball, the suspension ball 12 will ascend and descend along with the liquid level change, the suspension ball 12 will drive the detection rod 10 to slide in the detection tube 4, at the same time, because the guide plate 11 on the top of the detection rod 10 is slidably connected with the guide strip 15 in the detection tube 4, so that the detection rod 10 can keep stable during the ascending and descending process, when the guide plate 11 moves upward, it will push the contact rod 56 and the push plate 55 to move upward, then compress the compression spring 52 and make the pressure sensor 54 on the bottom of the pressing plate 53 receive pressure, the pressure sensor 54 will convert the received pressure into electric signal and process and display through the controller 3 to reflect the current liquid level height; then, in order to prevent the detection rod 10 and the suspension ball 12 from icing in the low temperature environment, the air pump 61 is started, the air pump 61 draws the air pipe of the air pump 61 to send the external air into the heating cylinder 63 through the air pipe 62, the electric heating wire 64 heats the air, the heated air enters into the detection rod 10 through the first exhaust pipe 65 and the connecting hose 9, so as to prevent the outside and the bottom connecting part of the detection tube 4 from icing, in addition, along with the increase of air pressure, the suspension ball 12 can be expanded, the outside conical block 13 can easily break the thin ice attached to the surface of the suspension ball 12; when the heated air needs to be discharged, the electromagnetic valve 8 can be opened through the controller 3, so that the air in the detection rod 10 and the suspension ball 12 is discharged through the second exhaust pipe 7.
[0018] The circuit connection related to the utility model is a common means adopted by the person skilled in the art, and the technical inspiration can be obtained through limited tests, and belongs to the prior art widely used.
[0019] The components not described in detail in the paper are the prior art.
[0020] Although the specific embodiments of the utility model have been described in detail above, the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range of the person skilled in the art without departing from the purpose of the utility model, and the modifications or deformations without creative labor are still within the protection range of the utility model.
Claims
1. A novel liquid level transmitter comprising a mounting plate (1) and a liquid level transmitter terminal block (2), four corners of the mounting plate (1) are respectively provided with mounting holes (16), characterized in that, The bottom left end of the mounting plate (1) is provided with a detection tube (4), the bottom of the detection tube (4) is of a tapered structure, a detection rod (10) is slidingly installed in the through hole provided at the bottom of the detection tube (4), the detection rod (10) is of a hollow structure, a suspension ball (12) is communicated at the bottom of the detection rod (10), a guide plate (11) is fixedly installed at the top of the detection rod (10), the rear end of the guide plate (11) is slidingly connected with a guide strip (15) provided at the inner side of the detection tube (4), a liquid level transmitter wiring drum (2) is provided above the detection tube (4), the liquid level transmitter wiring drum (2) is fixedly installed at the top of the mounting plate (1), the bottom of the liquid level transmitter wiring drum (2) is located at the inner top of the detection tube (4), a detection unit (5) is provided at the bottom of the liquid level transmitter wiring drum (2), the bottom of the detection unit (5) is in movable contact with the top of the guide plate (11), a connecting bin (14) is provided at the right top of the detection tube (4), an anti-freezing unit (6) is provided in the connecting bin (14), the bottom of the anti-freezing unit (6) is communicated with a connecting hose (9) provided in the detection tube (4), the bottom of the connecting hose (9) is communicated with the right top of the detection rod (10) through a groove provided at the right end of the guide plate (11).
2. A new type of liquid level transmitter according to claim 1, characterized in that: The detection unit (5) comprises a fixed tube (51), a compression spring (52), a pressing plate (53), a pressure sensor (54), a push plate (55) and a contact rod (56), the fixed tube (51) is fixedly installed at the bottom of the liquid level transmitter wiring drum (2), the inner top of the fixed tube (51) is fixedly installed with the compression spring (52), the bottom of the compression spring (52) is fixedly connected with the pressing plate (53) slidingly installed at the inner bottom of the fixed tube (51), the bottom center of the pressing plate (53) is fixedly installed with the pressure sensor (54), the contact rod (56) is slidingly installed in a sliding hole provided at the bottom center of the fixed tube (51), the top of the contact rod (56) is provided with the push plate (55), the top of the push plate (55) is in movable contact with the bottom of the pressure sensor (54), the bottom of the contact rod (56) is in movable contact with the top of the guide plate (11).
3. A new type of liquid level transmitter according to claim 1, characterized in that: The anti-freezing unit (6) comprises a gas pump (61), a gas delivery pipe (62), a heating cylinder (63), an electric heating wire (64) and a first exhaust pipe (65), the heating cylinder (63) is arranged at the inner bottom of the connecting bin (14), the inside of the heating cylinder (63) is spirally provided with the electric heating wire (64), the top of the heating cylinder (63) is provided with the gas delivery pipe (62), the other end of the gas delivery pipe (62) is fixedly connected with the exhaust end of the gas pump (61) fixedly installed at the top right end of the mounting plate (1) through the through hole arranged at the top of the mounting plate (1), the suction pipe arranged at the rear right end of the gas pump (61) is provided with the gas pump (61), the left bottom of the heating cylinder (63) is provided with the first exhaust pipe (65), the first exhaust pipe (65) is "L" shaped structure, the other end of the first exhaust pipe (65) is communicated with the top of the connecting hose (9).
4. A novel level transmitter as claimed in claim 3, wherein: The top left end of the first exhaust pipe (65) is communicated with the second exhaust pipe (7), the second exhaust pipe (7) is "Z" shaped structure, the other end of the second exhaust pipe (7) is located at the top of the mounting plate (1), and the other end of the second exhaust pipe (7) is provided with the electromagnetic valve (8).
5. A new type of liquid level transmitter according to claim 1, characterized in that: The suspension ball (12) is an elastic hollow rubber ball, and a plurality of conical blocks (13) are uniformly arranged on the outer surface of the suspension ball (12).
6. A new type of level transmitter according to claim 1, characterized in that: A controller (3) is further included, the controller (3) is fixedly installed on the upper surface of the left front end of the mounting plate (1), the output end of the controller (3) is electrically connected with the input end of the gas pump (61), the electric heating wire (64) and the electromagnetic valve (8), and the input end of the controller (3) is electrically connected with the output end of the pressure sensor (54) and the external power supply.