CN219830026U - Differential pressure type liquid level sensor - Google Patents

Abstract

The utility model provides a differential pressure type liquid level sensor. Including the receiver, be connected with the wire roller in the receiver rotation, one side fixedly connected with ratchet of wire roller, one side rotation of receiver is connected with the carousel, one side of ratchet is provided with the locking lever, the spring has been cup jointed on the upper portion of locking lever, the top surface fixedly connected with briquetting of locking lever, one side fixedly connected with duckbill of receiver, be provided with the wire on the wire roller, the other end fixedly connected with sensor probe of wire, the sensor probe outside is provided with the sleeve, one side fixedly connected with branch of receiver, rotate on the branch and be connected with the constraint pole. The utility model has the advantages that: the wire can not be disordered float in liquid, and unnecessary wire can twine on the wire roller, can avoid the soaking of liquid, receive the line through rotating the carousel, and the wire is automatic twine on the wire roller, need not to pack into the sleeve with the wire alone again.

Description

Differential pressure type liquid level sensor

Technical Field

The utility model relates to the technical field of liquid level sensors, in particular to a differential pressure type liquid level sensor.

Background

The liquid level sensor is a pressure sensor for measuring the liquid level, and the liquid level is measured by using the hydrostatic principle, so that the liquid level sensor is an important application of the pressure sensor.

If the liquid level sensor with the authorized bulletin number of CN216144394U is arranged through the cooperation of the sensor probe and the sensor sleeve, the sensor probe is arranged in the sensor sleeve, so that the sensor probe can be protected by the sensor sleeve, and meanwhile, the wires of the sensor probe can be wound in the sensor sleeve, so that the wires can be prevented from floating in liquid in disorder. Although the wire can be crimped in the sensor sleeve, when the wire is wound up, the wire can be pulled up by pulling the wire from the upper part and then pulling the sensor sleeve upwards after all the wire is extended from the sensor sleeve. The wire is inserted into the sensor sleeve after the wire is wound, and the use is troublesome. For this purpose, a differential pressure type liquid level sensor is proposed for improvement.

Disclosure of Invention

The object of the present utility model is to solve at least one of the technical drawbacks.

Therefore, an object of the present utility model is to provide a differential pressure type liquid level sensor, which solves the problems mentioned in the background art, and overcomes the shortcomings in the prior art.

In order to achieve the above object, an embodiment of an aspect of the present utility model provides a differential pressure type liquid level sensor, which comprises a storage box, a wire roller is rotationally connected in the storage box, a ratchet wheel is fixedly connected to one side of the wire roller, a turntable is rotationally connected to one side of the storage box, a locking rod is arranged on one side of the ratchet wheel, a spring is sleeved on the upper portion of the locking rod, a pressing block is fixedly connected to the top surface of the locking rod, a duckbill is fixedly connected to one side of the storage box, a wire is arranged on the wire roller, a sensor probe is fixedly connected to the other end of the wire, a sleeve is arranged outside the sensor probe, a supporting rod is fixedly connected to one side of the storage box, and a constraint rod is rotationally connected to the supporting rod.

By any of the above schemes, preferably, the wire roller is rotatably connected with the storage box through a rotating shaft, and the wire roller is fixedly connected with the rotating shaft of the turntable.

By any of the above schemes, preferably, a handle is fixedly connected to the turntable, and a pawl is fixedly connected to the locking lever at a side close to the ratchet wheel.

The technical scheme is adopted: the storage box is used for installing the storage structure and providing a certain protection function for the storage structure. The wire roller is used for accommodating the wires, so that the wires can be wound on the wire roller when not in use, and the wires are prevented from floating in liquid in disorder. The ratchet is used for locking the wire roller and preventing the wire roller from rotating to pay off when the wire roller is not needed. The turntable is used for a worker to rotate the wire roller so as to carry out paying-off or winding-up work. The locking rod is used for locking the ratchet wheel, so that the wire roller can be locked. The pawl on the locking rod can be meshed with the ratchet wheel, so that the ratchet wheel is blocked, and the ratchet wheel is prevented from rotating when not needed.

By any of the above schemes, preferably, the upper part of the locking rod is fixedly connected with a supporting plate, and two ends of the spring are respectively fixedly connected with the supporting plate and the storage box.

By above-mentioned arbitrary scheme preferably, rough texture has been seted up to the briquetting top surface, duckbilled setting is at the top of the one side that the receiver was provided with branch.

The technical scheme is adopted: the supporting piece on the upper part of the locking rod is used for supporting the spring, and the spring is used for driving the locking rod to move. The pressing block can facilitate a worker to press the locking rod, so that the pawl can be separated from the ratchet wheel, and the ratchet wheel is unlocked. The roughness of the rough patterns can be increased, and sliding is prevented when the press is performed. The duckbilled can dredge the wire and squeeze away the liquid adsorbed on the wire, thereby being beneficial to long-term use of the wire. When paying off is needed, the pressing block is pressed, the pressing block drives the locking rod to move downwards, the pawl moves downwards along with the locking rod, the pawl is separated from the ratchet wheel, the ratchet wheel is released, and the conducting wire is gradually paid out from the wire roller under the action of the gravity of the sleeve. After paying off, the pressing block is loosened, the spring releases the elastic force, the locking rod moves upwards, the pawl is meshed with the ratchet wheel again, the ratchet wheel is blocked, and the wire roller is locked.

By any of the above schemes, preferably, the side surface and the top surface of the sleeve are both provided with liquid inlet holes, and the sensor probe is fixedly connected with the sleeve through a fixing ring.

In any of the above schemes, preferably, the number of the supporting rods is two, and the end of the restraining rod is provided with a magnet block.

The technical scheme is adopted: the sleeve is used for protecting the sensor probe, the sensor probe is used for carrying out water level sensing according to the pressure difference, and the sensor probe is fixedly connected with the sleeve through the fixing ring, so that the sensor sleeve head can be prevented from being impacted when the sleeve contacts the bottom of the liquid container. The liquid inlet is used for injecting liquid into the sleeve, so that the liquid pressure sensed by the sensor probe is the same as the pressure generated by the real liquid level. The branch is used for supporting the constraint pole, and the constraint pole is used for restraining the sleeve, and the magnet piece is used for fixed constraint pole. When not in use, pressing down the briquetting makes the pawl release the ratchet, then rotates the handle on the carousel, and the carousel drives the line roller through the pivot and receive the line, and after receiving the line, rotates the restraint pole, makes its terminal magnet piece adsorb with branch, and the restraint pole is spacing to the sleeve, can avoid sleeve swing back and forth.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. this differential pressure type liquid level sensor through setting up receiver, line roller, ratchet, carousel, locking lever and spring and briquetting, when carrying out the unwrapping wire, presses the briquetting, and the briquetting drives locking lever downwardly moving, and the pawl follows locking lever downwardly moving, and the pawl breaks away from with the ratchet, and the ratchet is released, under telescopic gravity effect, the wire is played gradually from the line roller. After paying off, the pressing block is loosened, the spring releases the elastic force, the locking rod moves upwards, the pawl is meshed with the ratchet wheel again, the ratchet wheel is blocked, and the wire roller is locked. The wires can not float in liquid in disorder, and the redundant wires can be wound on the wire roller, so that the wires can be prevented from being soaked in the liquid, and the long-term use of the wires is facilitated.

2. This differential pressure type liquid level sensor, when not using, press the briquetting and make the pawl release the ratchet, then rotate the handle on the carousel, the carousel drives the line roller through the pivot and receive the line, and the back is accomplished to the receipts line, makes its terminal magnet piece adsorb with branch, and the restraint pole is spacing to the sleeve, can avoid sleeve back and forth hunting. The wire is wound on the wire roller automatically by rotating the turntable, so that the wire is not required to be plugged into the sleeve independently, and the use is more convenient.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the present utility model in a cut-away configuration;

FIG. 3 is a schematic view of a partial structure of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: the device comprises a storage box 1, a wire roller 2, a ratchet wheel 3, a rotary table 4, a locking rod 5, a spring 6, a pressing block 7, a duckbill 8, a wire 9, a sleeve 10, a sensor probe 11, a liquid inlet 12, a supporting rod 13, a restraining rod 14 and a magnet block 15.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 4, the utility model comprises a storage box 1, a wire roller 2 is rotatably connected in the storage box 1, a ratchet wheel 3 is fixedly connected to one side of the wire roller 2, a rotary table 4 is rotatably connected to one side of the storage box 1, a locking rod 5 is arranged on one side of the ratchet wheel 3, a spring 6 is sleeved on the upper portion of the locking rod 5, a pressing block 7 is fixedly connected to the top surface of the locking rod 5, a duckbill 8 is fixedly connected to one side of the storage box 1, a wire 9 is arranged on the wire roller 2, a sensor probe 11 is fixedly connected to the other end of the wire 9, a sleeve 10 is arranged on the outer side of the sensor probe 11, a supporting rod 13 is fixedly connected to one side of the storage box 1, and a constraint rod 14 is rotatably connected to the supporting rod 13.

Example 1: the wire roller 2 is rotationally connected with the storage box 1 through a rotating shaft, and the wire roller 2 is fixedly connected with a rotating shaft of the turntable 4. The rotary table 4 is fixedly connected with a handle, and the locking rod 5 is fixedly connected with a pawl at one side close to the ratchet wheel 3. The storage box 1 is used for installing a storage structure and providing a certain protection function for the storage structure. The wire roller 2 is used for accommodating the wire 9, so that the wire 9 can be wound on the wire roller 2 when not in use, and the wire 9 is prevented from floating in liquid in a mess. The ratchet 3 is used for locking the wire roller 2 and preventing the wire roller 2 from rotating to pay out when not needed. The turntable 4 is used for a worker to rotate the wire roller 2 to pay out or take up the wire. The locking lever 5 is used to lock the ratchet 3 and thus the wire roller 2. The pawl on the locking rod 5 can be meshed with the ratchet wheel 3, so that the ratchet wheel 3 is blocked, and the ratchet wheel 3 is prevented from rotating when not needed.

Example 2: the upper part of the locking rod 5 is fixedly connected with a supporting plate, and two ends of the spring 6 are respectively and fixedly connected with the supporting plate and the storage box 1. Coarse grain has been seted up to briquetting 7 top surface, and duckbill 8 sets up the top of one side that receiver 1 was provided with branch 13. The supporting piece at the upper part of the locking rod 5 is used for supporting the spring 6, and the spring 6 is used for driving the locking rod 5 to move. The pressing block 7 can facilitate a worker to press the locking rod 5, so that the pawl can be separated from the ratchet wheel 3, and the ratchet wheel 3 is unlocked. The roughness of the rough patterns can be increased, and sliding is prevented when the press is performed. The duckbill 8 can drain the lead 9 and squeeze away the liquid adsorbed on the lead 9, which is beneficial to long-term use of the lead 9. When paying off is needed, the pressing block 7 is pressed, the pressing block 7 drives the locking rod 5 to move downwards, the pawl moves downwards along with the locking rod 5, the pawl is separated from the ratchet wheel 3, the ratchet wheel 3 is released, and the wire 9 is gradually released from the wire roller 2 under the gravity action of the sleeve 10. After paying out, the pressing block 7 is loosened, the spring 6 releases the elastic force, the locking rod 5 moves upwards, the pawl is meshed with the ratchet wheel 3 again, the ratchet wheel 3 is blocked, and the wire roller 2 is locked.

Example 3: the side and top surfaces of the sleeve 10 are provided with liquid inlet holes 12, and the sensor probe 11 is fixedly connected with the sleeve 10 through a fixing ring. The number of the supporting rods 13 is two, and the tail ends of the constraint rods 14 are provided with magnet blocks 15. The sleeve 10 is used for protecting the sensor probe 11, the sensor probe 11 is used for sensing the water level according to the pressure difference, and the sensor probe 11 is fixedly connected with the sleeve 10 through the fixing ring, so that the sensor sleeve 11 can be prevented from being impacted when the sleeve 10 contacts the bottom of the liquid container. The liquid inlet 12 is used for injecting liquid into the sleeve 10, so that the liquid pressure sensed by the sensor probe 11 is the same as the pressure generated by the real liquid level. The support rod 13 is used for supporting the restraining rod 14, the restraining rod 14 is used for restraining the sleeve 10, and the magnet block 15 is used for fixing the restraining rod 14. When not in use, the pressing block 7 is pressed down to enable the pawl to release the ratchet wheel 3, then the handle on the rotary table 4 is rotated, the rotary table 4 drives the wire roller 2 to take up through the rotating shaft, after the wire taking up is completed, the restraint rod 14 is rotated, the magnet block 15 at the tail end of the restraint rod is adsorbed with the support rod 13, the restraint rod 14 limits the sleeve 10, and the sleeve 10 can be prevented from swinging back and forth.

The working principle of the utility model is as follows:

s1, pressing a pressing block 7, wherein the pressing block 7 drives a locking rod 5 to move downwards, a pawl moves downwards along with the locking rod 5, the pawl is separated from a ratchet wheel 3, the ratchet wheel 3 is released, and a wire 9 is gradually discharged from a wire roller 2 under the action of gravity of a sleeve 10. After the sleeve 10 contacts the bottom surface of the liquid container, the pressing block 7 is loosened, the spring 6 releases the elastic force, the locking rod 5 moves upwards, the pawl is meshed with the ratchet wheel 3 again, the ratchet wheel 3 is blocked, and the wire roller 2 is locked;

s2, liquid enters the sleeve 10 from the liquid inlet hole 12, and the sensor probe 11 senses the liquid level according to the pressure difference;

s3, after the use is completed, the pressing block 7 is pressed down to enable the pawl to release the ratchet wheel 3, then the handle on the rotary table 4 is rotated, the rotary table 4 drives the wire roller 2 to take up wires through the rotating shaft, after the wire taking up is completed, the constraint rod 14 is rotated to enable the magnet block 15 at the tail end of the constraint rod to be adsorbed with the supporting rod 13, and the constraint rod 14 limits the sleeve 10.

Compared with the prior art, the utility model has the following beneficial effects compared with the prior art:

1. this differential pressure type liquid level sensor through setting up receiver 1, wire roller 2, ratchet 3, carousel 4, locking lever 5 and spring 6 and briquetting 7, when carrying out the unwrapping wire, presses briquetting 7, and briquetting 7 drives locking lever 5 and moves down, and the pawl follows locking lever 5 and moves down, and the pawl breaks away from with ratchet 3, and ratchet 3 is released, under the gravity effect of sleeve 10, wire 9 is released gradually from wire roller 2. After paying out, the pressing block 7 is loosened, the spring 6 releases the elastic force, the locking rod 5 moves upwards, the pawl is meshed with the ratchet wheel 3 again, the ratchet wheel 3 is blocked, and the wire roller 2 is locked. The wires 9 are not only floated in the liquid in disorder, but also the redundant wires 9 are wound on the wire roller 2, so that the wires 9 can be prevented from being soaked in the liquid, and the long-term use of the wires 9 is facilitated.

2. When the differential pressure type liquid level sensor is not used, the pressing block 7 is pressed to enable the pawl to release the ratchet wheel 3, then the handle on the rotary table 4 is rotated, the rotary table 4 drives the line roller 2 to take up through the rotating shaft, after the line taking up is completed, the constraint rod 14 is rotated to enable the magnet block 15 at the tail end of the constraint rod to be adsorbed with the supporting rod 13, the constraint rod 14 limits the sleeve 10, and the sleeve 10 can be prevented from swinging back and forth. The wire 9 is wound on the wire roller 2 automatically by rotating the rotary table 4, and the wire 9 is not required to be plugged into the sleeve 10 independently, so that the use is more convenient.

Claims (7)

1. A differential pressure type liquid level sensor, which comprises a storage box (1); the wire roller is characterized in that the wire roller (2) is rotationally connected to the storage box (1), a ratchet wheel (3) is fixedly connected to one side of the wire roller (2), a rotary table (4) is rotationally connected to one side of the storage box (1), a locking rod (5) is arranged on one side of the ratchet wheel (3), a spring (6) is sleeved on the upper portion of the locking rod (5), a pressing block (7) is fixedly connected to the top surface of the locking rod (5), a duckbill (8) is fixedly connected to one side of the storage box (1), a wire (9) is arranged on the wire roller (2), a sensor probe (11) is fixedly connected to the other end of the wire (9), a sleeve (10) is arranged on the outer side of the sensor probe (11), a supporting rod (13) is fixedly connected to one side of the storage box (1), and a constraint rod (14) is rotationally connected to the supporting rod (13).

2. A differential pressure liquid level sensor as defined in claim 1, wherein: the wire roller (2) is rotationally connected with the storage box (1) through a rotating shaft, and the wire roller (2) is fixedly connected with the rotating shaft of the turntable (4).

3. A differential pressure liquid level sensor as claimed in claim 2, wherein: the rotary table (4) is fixedly connected with a handle, and the locking rod (5) is fixedly connected with a pawl at one side close to the ratchet wheel (3).

4. A differential pressure liquid level sensor as claimed in claim 3, wherein: the upper part of the locking rod (5) is fixedly connected with a supporting sheet, and two ends of the spring (6) are respectively and fixedly connected with the supporting sheet and the storage box (1).

5. A differential pressure liquid level sensor as defined in claim 4, wherein: coarse grain is offered to briquetting (7) top surface, duckbill (8) set up the top of being provided with one side of branch (13) at receiver (1).

6. A differential pressure liquid level sensor as defined in claim 5, wherein: liquid inlet holes (12) are formed in the side face and the top face of the sleeve (10), and the sensor probe (11) is fixedly connected with the sleeve (10) through a fixing ring.

7. A differential pressure liquid level sensor as defined in claim 6, wherein: the number of the supporting rods (13) is two, and the tail ends of the constraint rods (14) are provided with magnet blocks (15).