CN110779594A

CN110779594A - Waterproof type level sensor

Info

Publication number: CN110779594A
Application number: CN201911189753.0A
Authority: CN
Inventors: 赵先进; 薛怀波
Original assignee: Xuzhou Shuangyu Electronic Technology Co Ltd
Current assignee: Xuzhou Shuangyu Electronic Technology Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-02-11
Anticipated expiration: 2039-11-28
Also published as: CN110779594B

Abstract

The invention provides a waterproof liquid level sensor which comprises a sensor body, wherein a waterproof pipe is detachably connected to the sensor body, an electronic tube is arranged in the waterproof pipe, a probe is arranged at the bottom of the electronic tube, a buffer space is arranged between the electronic tube and the probe, and a drainage structure is arranged in the waterproof pipe. The liquid level sensor has reasonable structural design, the waterproof pipe is arranged outside the liquid level sensor, the buffer cavity is arranged between the probe and the waterproof pipe, the waterproof performance of the liquid level sensor is improved, if water seepage occurs, water is drained at the first time, the damage degree of the liquid level sensor is reduced, and the buffer time is provided for maintenance personnel.

Description

Waterproof type level sensor

Technical Field

The invention mainly relates to the technical field of sensors, in particular to a waterproof liquid level sensor.

Background

The level sensor is an electric valve switch for measuring the liquid level. The static pressure drop-in type liquid level transmitter is based on the principle that the measured liquid static pressure is proportional to the height of the liquid, adopts an advanced foreign isolation type diffused silicon sensitive element or a ceramic capacitance pressure sensitive sensor to convert the static pressure into an electric signal, and then converts the electric signal into a standard electric signal through temperature compensation and linear correction.

The liquid level sensor is generally placed in liquid when in use, which has great requirements on the waterproof performance, and most of the prior liquid level sensors are provided with a waterproof layer outside, but how to solve the problem is not considered if liquid permeates.

Disclosure of Invention

Technical problem to be solved by the invention

The invention mainly provides a waterproof liquid level sensor, which is used for solving the technical problems that the existing liquid level sensor in the background technology is poor in waterproof performance and cannot be discharged after water seepage occurs.

Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows: the utility model provides a waterproof type level sensor, includes the sensor body, can dismantle on the sensor body and connect waterproof pipe, be equipped with the electron tube in the waterproof pipe, the electron tube bottom is equipped with the probe, just the electron tube with be equipped with buffer space between the probe, be equipped with drainage structures in the waterproof pipe.

Further, the sensor body comprises a fixing plate, the bottom of the fixing plate is slidably connected with a plurality of pulling plates, one side of each pulling plate is fixedly connected with a first spring, and the other side of each first spring is fixedly connected with a clamping block.

Furthermore, a plurality of sliding blocks are arranged on one side of the pulling plate and are connected with sliding grooves in a matching mode, and the sliding grooves are located at the bottom of the fixing plate.

Furthermore, the clamping block can be clamped and connected with the clamping groove, the clamping groove is located on two sides of the top end of the waterproof pipe, and the clamping groove and the clamping block are both of arc structures.

Further, the waterproof pipe comprises an inner layer and an outer layer, a movable cavity is arranged at the bottom of the outer layer, a limiting cylinder is arranged in the movable cavity, a second spring is arranged in the limiting cylinder, the other end of the second spring is fixedly connected with a limiting rod, and the other end of the limiting rod is fixedly connected with a baffle; the limiting rod can be connected with the limiting cylinder in a clamping mode.

Furthermore, a through groove is formed in the bottom of the connecting wall of the inner layer and the outer layer, and the through groove can be connected with the baffle in a matched mode.

Furthermore, the drainage structure is located in the inner layer and comprises an electric telescopic rod, the bottom of the electric telescopic rod is connected with an extrusion plate in a specified mode, water-absorbing cotton is arranged at the bottom of the extrusion plate, and the water-absorbing cotton is also arranged in the outer layer except the movable cavity.

Further, the inlayer bottom is equipped with the electric valve, electric valve one side is equipped with water drainage tank, be equipped with the removal float in the water drainage tank, the electric valve with be equipped with the electric valve switch between the removal float, the electric valve switch with electric valve electric connection.

Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the liquid level sensor has reasonable structural design, the waterproof pipe is arranged outside the liquid level sensor, the buffer cavity is arranged between the probe and the waterproof pipe, the waterproof performance of the liquid level sensor is improved, if water seepage occurs, water is drained at the first time, the damage degree of the liquid level sensor is reduced, and the buffer time is provided for maintenance personnel.

Drawings

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

FIG. 2 is an enlarged view of area A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the area B in FIG. 1 according to the present invention.

The labels in the figure are:

1-a sensor body; 11-a fixed plate; 111-a chute; 12-pulling a plate; 121-a slider; 13-a first spring; 14-a fixture block; 2-waterproof pipe 21-clamping groove; 22-an inner layer; 23-an outer layer; 24-an active cavity; 25-a limiting cylinder; 26-a second spring; 27-a limiting rod; 28-a baffle; 3-an electron tube; 31-a buffer space; 4-a probe; 5-a drainage structure; 51-an electric telescopic rod; 52-a squeeze plate; 53-absorbent cotton; 54-an electric valve; 55-a drainage groove; 56-moving the float; 57-electric valve switch.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1-3, a waterproof liquid level sensor comprises a sensor body 1, a waterproof pipe 2 is detachably connected to the sensor body 1, an electronic tube 3 is arranged in the waterproof pipe 2, a probe 4 is arranged at the bottom of the electronic tube 3, a buffer space 31 is arranged between the electronic tube 3 and the probe 4, and a drainage structure 5 is arranged in the waterproof pipe 2.

The sensor body 1 comprises a fixing plate 11, the bottom of the fixing plate 11 is slidably connected with a plurality of pull plates 12, one sides of the pull plates 12 are fixedly connected with first springs 13, and the other sides of the first springs 13 are fixedly connected with clamping blocks 14.

A plurality of sliding blocks 121 are arranged on one side of the pulling plate 12, the sliding blocks 121 are connected with sliding grooves 111 in a matching mode, and the sliding grooves 111 are located at the bottom of the fixing plate 11.

The clamping block 14 can be clamped and connected with a clamping groove 21, the clamping groove 21 is located on two sides of the top end of the waterproof pipe 2, the clamping groove 21 and the clamping block 14 are both in arc structures, and the sliding block 121 is also arranged on the clamping block 14 and is in sliding connection with the sliding groove 111.

The waterproof pipe 2 comprises an inner layer 22 and an outer layer 23, the bottom of the outer layer 23 is provided with a movable cavity 24, a limiting cylinder 25 is arranged in the movable cavity 24, a second spring 26 is arranged in the limiting cylinder 25, the other end of the second spring 26 is fixedly connected with a limiting rod 27, and the other end of the limiting rod 27 is fixedly connected with a baffle 28; the limiting rod 27 can be connected with the limiting cylinder 25 in a clamping mode.

The bottom of the connecting wall of the inner layer 22 and the outer layer 23 is provided with a through groove which can be matched and connected with the baffle 28.

The drainage structure 5 is located in the inner layer 22, the drainage structure 5 comprises an electric telescopic rod 51, the bottom of the electric telescopic rod 51 is connected with an extrusion plate 52 in a specified mode, water absorbent cotton 53 is arranged at the bottom of the extrusion plate 52, and the water absorbent cotton 53 is also arranged in the outer layer 23 except the movable cavity 24.

The bottom of the inner layer 22 is provided with an electric valve 54, one side of the electric valve 54 is provided with a drainage groove 55, a movable floater 56 is arranged in the drainage groove 55, the movable floater 56 limits the position of the movable floater, only horizontal displacement can be generated, an electric valve switch 57 is arranged between the electric valve 54 and the movable floater 56, and the electric valve switch 57 is electrically connected with the electric valve 54.

The working principle and the process are as follows: when the waterproof pipe 2 is installed, the pulling plates 12 at the two ends are respectively pulled, the clamping blocks 14 are pulled apart by the pulling plates 12 under the action of the first springs 13, the sliding blocks 121 and the sliding grooves 111, and at the moment, the clamping grooves 21 of the waterproof pipe 2 are clamped into the clamping blocks 14 to fix the top ends of the waterproof pipe;

when water permeates into the buffer space 31 and the water seepage amount reaches a certain degree, the water pressure pushes the movable floater 56 to move, the electric valve switch 57 is squeezed, the electric valve switch 57 turns on the power supply of the electric valve 54, the electric valve 54 is opened, water flows into the inner layer 22 from the drainage groove 55 and is absorbed by the absorbent cotton 53, when the electric valve switch 57 cannot sense the pressure, the electric valve 54 is closed, the electric telescopic rod 51 is started to squeeze the absorbent cotton 53, the absorbent cotton 53 squeezes the baffle plate 58, the baffle plate 58 is squeezed into the outer layer 23 under the action of the limiting cylinder 25 and the second spring 26, and at the moment, water squeezed by the absorbent cotton 53 in the inner layer 22 is squeezed into the outer layer 23 and is absorbed by the absorbent cotton in the outer layer 23.

In conclusion, the liquid level sensor is reasonable in structural design, the waterproof pipe is arranged outside the liquid level sensor, the buffer cavity is arranged between the probe and the waterproof pipe, the waterproof performance of the liquid level sensor is improved, if water seepage occurs, water is drained at the first time, and the damage degree of the liquid level sensor is reduced.

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a waterproof type level sensor, includes sensor body (1), its characterized in that: the sensor is characterized in that the waterproof tube (2) is detachably connected to the sensor body (1), an electronic tube (3) is arranged in the waterproof tube (2), a probe (4) is arranged at the bottom of the electronic tube (3), a buffer space (31) is arranged between the electronic tube (3) and the probe (4), and a drainage structure (5) is arranged in the waterproof tube (2).

2. The waterproof level sensor according to claim 1, wherein: the sensor body (1) comprises a fixing plate (11), the bottom of the fixing plate (11) is in sliding connection with a plurality of pulling plates (12), one side of each pulling plate (12) is fixedly connected with a first spring (13), and the other side of each first spring (13) is fixedly connected with a clamping block (14).

3. A water-resistant level sensor according to claim 2, wherein: a plurality of sliding blocks (121) are arranged on one side of the pulling plate (12), the sliding blocks (121) are connected with sliding grooves (111) in a matching mode, and the sliding grooves (111) are located at the bottom of the fixing plate (11).

4. A water-resistant level sensor according to claim 2, wherein: the clamping block (14) can be clamped and connected with clamping grooves (21), the clamping grooves (21) are located on two sides of the top end of the waterproof pipe (2), and the clamping grooves (21) and the clamping block (14) are of arc structures.

5. The waterproof level sensor according to claim 1, wherein: the waterproof pipe (2) comprises an inner layer (22) and an outer layer (23), a movable cavity (24) is arranged at the bottom of the outer layer (23), a limiting cylinder (25) is arranged in the movable cavity (24), a second spring (26) is arranged in the limiting cylinder (25), the other end of the second spring (26) is fixedly connected with a limiting rod (27), and the other end of the limiting rod (27) is fixedly connected with a baffle (28); the limiting rod (27) can be connected with the limiting cylinder (25) in a clamping mode.

6. The waterproof level sensor of claim 5, wherein: and a through groove is formed at the bottom of the connecting wall of the inner layer (22) and the outer layer (23), and the through groove can be matched and connected with the baffle (28).

7. The waterproof level sensor of claim 5, wherein: the drainage structure (5) is located in the inner layer (22), the drainage structure (5) comprises an electric telescopic rod (51), the bottom of the electric telescopic rod (51) is connected with an extrusion plate (52) in a specified mode, water absorption cotton (53) is arranged at the bottom of the extrusion plate (52), and the water absorption cotton (53) is also arranged in the outer layer (23) except the movable cavity (24).

8. The waterproof level sensor of claim 7, wherein: the utility model discloses a high-pressure water heater, including inlayer (22) bottom is equipped with electric valve (54), electric valve (54) one side is equipped with water drainage tank (55), be equipped with in water drainage tank (55) and remove float (56), electric valve (54) with be equipped with electric valve switch (57) between removal float (56), electric valve switch (57) with electric valve (54) electric connection.