CN217331303U

CN217331303U - Liquid level sensor

Info

Publication number: CN217331303U
Application number: CN202220296847.9U
Authority: CN
Inventors: 于建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-08-30
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a liquid level sensor, including a piston section of thick bamboo, sliding connection has the piston in the circumference inner wall of a piston section of thick bamboo, the vertical iron core that upwards stretches out of top fixedly connected with of piston, the top fixedly connected with apical ring of a piston section of thick bamboo, fixedly connected with coil on the apical ring, the hole of iron core and coil is concentric, the iron core overcoat is equipped with the spring, support respectively on the lower terminal surface of apical ring and the up end of piston at the both ends of spring, the bottom of a piston section of thick bamboo is provided with the outside annular mount pad that extends of level, the inner circle of mount pad bonds with the connecting seat of tube socket mutually, be provided with a set of screw hole on the outer lane of mount pad, the screw hole supplies the screw to wear to establish, be connected with the pipeline on the tube socket. The utility model discloses simple structure, low in cost, detectivity is high, can real-time detection liquid level variation, be fit for promoting and popularize.

Description

Liquid level sensor

Technical Field

The utility model relates to a level sensor technical field specifically is a level sensor.

Background

The liquid level sensor is divided into two types, one type is contact type, and comprises a single-flange static pressure/double-flange differential pressure liquid level transmitter, a floating ball type liquid level transmitter, a magnetic liquid level transmitter, a drop-in type liquid level transmitter, an electric inner floating ball type liquid level transmitter, an electric floating ball type liquid level transmitter, a capacitance type liquid level transmitter, a magnetostrictive liquid level transmitter, a servo liquid level transmitter and the like. The second type is non-contact, and is classified into ultrasonic level transmitters, radar level transmitters and the like.

At present, the two-stage differentiation phenomenon of the existing liquid level sensor is serious, the manufacturing cost is high, the use cost is high, most of devices with low manufacturing cost have cross sensitivity, and the function is single. For example, chinese patent No. CN210862824U discloses a liquid level sensor, which improves the convenience of installation by improving the installation structure, but does not improve the sensitivity and functionality of the liquid level sensor. Therefore, a need exists for a new level sensor that addresses the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid level sensor to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a level sensor, includes a piston section of thick bamboo, sliding connection has the piston in the circumference inner wall of a piston section of thick bamboo, the vertical iron core that upwards stretches out of top fixedly connected with of piston, the top fixedly connected with apical ring of a piston section of thick bamboo, fixedly connected with coil on the apical ring, the iron core is concentric with the hole of coil, the iron core overcoat is equipped with the spring, the both ends of spring are supported respectively on the lower terminal surface of apical ring and the up end of piston, the bottom of a piston section of thick bamboo is provided with the annular mount pad that the level outwards extended, the inner circle of mount pad bonds with the connecting seat of tube socket mutually, be provided with a set of screw hole on the outer lane of mount pad, the screw hole supplies the screw to wear to establish, be connected with the pipeline on the tube socket.

Furthermore, an annular seat is arranged on the upper end face of the piston cylinder and arranged on the outer side of the coil, the annular seat is in threaded connection with the cover cap, and a signal box is arranged at the top of the cover cap.

Furthermore, the bottom of the circumferential inner wall of the piston cylinder is fixedly connected with a limiting ring.

Further, the pipeline is a flexible pipe.

Furthermore, one end of the pipeline, which is far away from the pipe seat, is connected with a counterweight ring, and the counterweight ring is made of ceramic materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model obtains the specific liquid level variation in the container by the circuit detection after the inductance variation caused by the air pressure variation of the pipeline, adopts 4G transmission signals to remotely transmit the liquid level variation value, is convenient for relevant personnel to remotely detect the liquid level, and has high popularization rate and small restriction to regions by adopting 4G signal transmission;

2. the utility model, by arranging the pipeline as a flexible pipe, avoids the defect that the length of the pipeline needs to be changed according to the height of the container, as long as the length of the pipeline is greater than the height of the container; the counterweight ring made of ceramic material is used for ensuring that the lower end of the pipeline is sunk into the bottom of the container, and the ceramic material cannot rust.

To sum up, the utility model discloses simple structure, low in cost, detectivity is high, can real-time detection liquid level variation, is fit for promoting and popularizes.

Drawings

FIG. 1 is a schematic diagram of a liquid level sensor;

FIG. 2 is an exploded view of a liquid level sensor;

FIG. 3 is an enlarged view of a portion of FIG. 1 at K;

fig. 4 is a partially enlarged view of fig. 2 at L.

In the figure: 1-piston cylinder, 2-mounting seat, 3-screw, 4-connecting seat, 5-pipe seat, 6-top ring, 7-pipe, 8-counterweight ring, 9-limiting ring, 10-piston, 11-iron core, 12-spring, 13-coil, 14-annular seat, 15-cover cap, 16-signal box and 17-inner hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Example 1: referring to fig. 1-2, a liquid level sensor includes a piston cylinder 1, a piston 10 is slidably connected to the inner wall of the circumference of the piston cylinder 1, an iron core 11 vertically extending upwards is fixedly connected to the top of the piston 10, a top ring 6 is fixedly connected to the top of the piston cylinder 1, a coil 13 is fixedly connected to the top ring 6, the iron core 11 is concentric with an inner hole 17 of the coil 13, a spring 12 is sleeved outside the iron core 11, two ends of the spring 12 respectively abut against the lower end face of the top ring 6 and the upper end face of the piston 10, an annular mounting seat 2 extending horizontally outwards is arranged at the bottom of the piston cylinder 1, an inner ring of the mounting seat 2 is bonded to a connecting seat 4 of a tube seat 5, a group of screw holes are arranged on an outer ring of the mounting seat 2, screws 3 are provided for the screws to penetrate through, and a pipeline 7 is connected to the tube seat 5.

The upper end face of the piston cylinder 1 is provided with an annular seat 14, the annular seat 14 is arranged on the outer side of the coil 13, the annular seat 14 is in threaded connection with a cover cap 15, and the top of the cover cap 15 is provided with a signal box 16.

The utility model discloses during the installation, with the top of mount pad 2 through 3 fixed connection of screw to container, stretch into the bottom of container with pipeline 7, when the liquid level in the container changes, atmospheric pressure in pipeline 7 increases piston 10 and 11 jack-ups of iron core, and iron core 11 gets into and is aroused in coil 13's the hole 17 after the inductance value changes by the circuit detection (detection circuitry for this field common circuit can) to concrete liquid level variation in the acquisition container. The signal box 16 (the signal box is a 4G signal transmission device commonly used in the field) adopts 4G transmission signals to remotely transmit the liquid level change value, so that related personnel can conveniently and remotely detect the liquid level, and the 4G signal transmission has high popularization rate and small limitation on regions.

Example 2: referring to fig. 1 and 3, a liquid level sensor is different from embodiment 1 in that the pipe 7 is a flexible pipe.

One end of the pipeline 7, which is far away from the pipe seat 5, is connected with a counterweight ring 8, and the counterweight ring 8 is made of ceramic materials.

In the embodiment, the pipeline 7 is a flexible pipe, so that the defect that the length of the pipeline 7 needs to be changed according to the height of the container is overcome, and the pipeline 7 is only required to be longer than the height of the container; the counterweight ring 8 of ceramic material is used to ensure that the lower end of the pipeline 7 sinks to the bottom of the container and the ceramic material does not rust.

Example 3: referring to fig. 4, a liquid level sensor is different from embodiments 1 and 2 in that a limit ring 9 is fixedly connected to the bottom of the circumferential inner wall of the piston cylinder 1.

The stop collar 9 is used to limit the position of the piston 10 in this embodiment.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for the convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.

Claims

1. A level sensor comprising a piston cylinder (1), characterized in that: the piston is characterized in that a piston (10) is connected to the inner wall of the circumference of the piston cylinder (1) in a sliding manner, an iron core (11) vertically extending upwards is fixedly connected to the top of the piston (10), a top ring (6) is fixedly connected to the top of the piston cylinder (1), a coil (13) is fixedly connected to the top ring (6), the iron core (11) is concentric with an inner hole (17) of the coil (13), a spring (12) is sleeved outside the iron core (11), two ends of the spring (12) are respectively abutted against the lower end face of the top ring (6) and the upper end face of the piston (10), an annular mounting seat (2) extending horizontally outwards is arranged at the bottom of the piston cylinder (1), the inner ring connecting seat (4) of the tube seat (5) is bonded to the mounting seat (2), a group of screw holes are arranged on the outer ring of the mounting seat (2), and screws (3) are threaded through the screw holes, the pipe seat (5) is connected with a pipeline (7).

2. A liquid level sensor as claimed in claim 1, wherein: the piston is characterized in that an annular seat (14) is arranged on the upper end face of the piston cylinder (1), the annular seat (14) is arranged on the outer side of the coil (13), the annular seat (14) is in threaded connection with a cover cap (15), and a signal box (16) is arranged at the top of the cover cap (15).

3. A liquid level sensor according to claim 2, wherein: the bottom of the circumferential inner wall of the piston cylinder (1) is fixedly connected with a limiting ring (9).

4. A liquid level sensor according to claim 3, wherein: the pipeline (7) is a flexible pipe.

5. A liquid level sensor according to claim 4, wherein: one end, far away from the pipe seat (5), of the pipeline (7) is connected with a counterweight ring (8), and the counterweight ring (8) is made of ceramic materials.