CN216899112U - Sealed liquid level sensor - Google Patents

Abstract

The utility model provides a sealed liquid level sensor, which relates to the technical field of liquid level sensors and comprises a sensor body and a processor assembly, wherein the processor assembly is arranged above the sensor body and electrically connected with the sensor body, the processor assembly comprises a positioning cover body, a waterproof shell, an extension convex frame, an inclined groove body, an elastic sheet layer and a swing limiting frame, the positioning cover body is positioned at the top of the waterproof shell, the center of the bottom of the positioning cover body extends into an inner cavity of the waterproof shell through the extension convex frame, the elastic sheet layer is symmetrically arranged on the left side and the right side of the inner cavity of the waterproof shell, the inner end of the elastic sheet layer is provided with the swing limiting frame, the inclined groove body is arranged on the outer surface of the extension convex frame and close to the lower side of the outer surface of the extension convex frame, and the extension convex frame is detachably connected with the inner cavity of the inclined groove body. The utility model reduces the time required in the dismounting and mounting process by facilitating the dismounting and maintenance work of the processor assembly, can protect the circuit assembly inside the processor assembly, and can effectively improve the sealing performance of the sealed liquid level sensor.

Description

Sealed liquid level sensor

Technical Field

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

Background

A level sensor (static pressure level gauge/level transmitter/level sensor) is a type of pressure sensor that measures the liquid level. The static pressure input type liquid level transmitter (liquid level meter) is based on the principle that the measured liquid static pressure is proportional to the height of the liquid, and adopts an advanced isolated diffused silicon sensitive element or a ceramic capacitance pressure sensitive sensor abroad to convert the static pressure into an electric signal, and then the electric signal is converted into a standard electric signal through temperature compensation and linear correction.

The following problems are posed according to the prior art:

traditional level sensor usually adopts the mode with its shell welding or bolt assembly to carry out sealing connection, and inside loading has the circuit subassembly, and in this level sensor's maintenance process, be not convenient for dismantle and assemble work the casing, further caused the influence for dismantling maintenance work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a sealed liquid level sensor which aims to reduce the time required in the process of disassembly and assembly and effectively protect a line assembly by a processor assembly convenient to assemble and disassemble.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a sealed liquid level sensor which comprises a sensor body and a processor assembly, wherein the processor assembly is arranged above the sensor body and electrically connected with the sensor body, the processor assembly comprises a positioning cover body, a waterproof shell, an extending convex frame, an inclined groove body, an elastic sheet layer and a swinging limiting frame, the positioning cover body is positioned at the top of the waterproof shell, and the center of the bottom of the positioning cover body extends into an inner cavity of the waterproof shell through the extending convex frame.

The equal symmetry in waterproof housing inner chamber left and right sides is provided with the elasticity lamella, the inner of elasticity lamella all is provided with the spacing of swing, extend the surface of protruding frame and lean on the below to have seted up the slope cell body, the inner chamber dismantlement formula that extends protruding frame and slope cell body is connected.

The technical scheme of the utility model is further improved as follows: the inner chamber bottom fixedly connected with annular chimb of waterproof casing, the surface center department fixedly connected with transmission bulge loop that extends the bulge frame.

The technical scheme of the utility model is further improved as follows: the bottom of location lid just is close to edge fixedly connected with seal ring, seal ring extends in the inner chamber of waterproof casing and leans on the top.

The technical scheme of the utility model is further improved as follows: the top of sensor body just leans on outside fixedly connected with screw thread to insert the ring, the recess with screw thread access ring looks adaptation is seted up at the top of waterproof casing.

The technical scheme of the utility model is further improved as follows: the outer surface of the waterproof shell is provided with a wiring port.

The technical scheme of the utility model is further improved as follows: and a display assembly is arranged at the top of the positioning cover body.

The technical scheme of the utility model is further improved as follows: the surface of the transmission convex ring is symmetrically provided with wiring groove bodies.

The technical scheme of the utility model is further improved as follows: the outer surface of the positioning cover body is annularly provided with anti-skid lugs.

The utility model has the beneficial effects that:

(1) according to the utility model, the processor assembly is arranged at the top of the sensor body, and the processor assembly is combined by the positioning cover body, the waterproof shell, the extension convex frame, the inclined groove body, the elastic sheet layer and the swing limiting frame, so that the positioning cover body can rotate to enter the waterproof shell in the installation process of the sensor body and the processor assembly, the swing limiting frame connected with the elastic sheet layer can enter the inclined groove body formed on the surface of the extension convex frame to lock the extension convex frame and the positioning cover body, the processor assembly is convenient to disassemble and maintain, the time required in the disassembly and installation process is reduced, and the circuit assembly in the processor assembly can be protected.

(2) According to the utility model, the processor assembly at the top of the sensor body is combined, and the sealing washer extends into the inner cavity of the waterproof shell and is close to the upper part of the waterproof shell, so that after the waterproof shell is locked and connected with the positioning shell and the extending bump, the sealing washer can be used for connecting the top gap of the waterproof shell, and the sealing performance of the sealed liquid level sensor is effectively improved.

Drawings

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

FIG. 2 is a schematic view of a second perspective structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a second perspective view of the internal structure of the present invention.

In the figure: 1. a sensor body; 2. a processor component; 3. an annular flange; 4. a wiring port; 5. a drive convex ring; 6. a sealing gasket; 7. a display component; 8. a threaded access ring; 9. a wiring groove body; 10. an anti-slip bump; 21. positioning the cover body; 22. a waterproof housing; 23. an extension ledge; 24. an inclined trough body; 25. an elastic sheet layer; 26. and a swing limiting frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

As shown in fig. 1-4, the present invention provides a sealed liquid level sensor, which comprises a sensor body 1 and a processor assembly 2 disposed above the sensor body 1 and electrically connected to the sensor body, wherein the processor assembly 2 comprises a positioning cover 21, a waterproof housing 22, an extending ledge 23, an inclined groove 24, an elastic sheet layer 25 and a swing limiting frame 26, the positioning cover 21 is disposed on the top of the waterproof housing 22, and the center of the bottom of the positioning cover 21 extends into the inner cavity of the waterproof housing 22 through the extending ledge 23, the sealed liquid level sensor employs a cylindrical sensor, and performs liquid level sensing by using capacitance reaction, and during the operation, the sensor body 1 contacts with water and transmits capacitance signals to a circuit assembly disposed inside the extending ledge 23, the line assembly can transmit signals so as to be convenient for workers to identify.

The equal symmetry in waterproof casing 22 inner chamber left and right sides is provided with elasticity lamella 25, the inner of elasticity lamella 25 all is provided with swing spacing 26, extend the surface of protruding frame 23 and lean on the below to seted up slope cell body 24, it is connected with the inner chamber dismantlement formula of slope cell body 24 to extend protruding frame 23, the in-process that the treater subassembly above sensor body 1 was installed, can be with the rotatory inside that gets into waterproof casing 22 of location lid 21, the in-process that extends protruding frame 23 entering waterproof casing 22 inside that sets up at its bottom, swing spacing 26 that elasticity lamella 25 is connected can get into the inside of slope cell body 24, lock extension protruding frame 23 and location lid 21, so that dismantle maintenance work to treater subassembly 2, required time in the dismantlement installation has been reduced, can protect its inside circuit subassembly.

The inner chamber bottom fixedly connected with annular chimb 3 of waterproof casing 22, the surface center fixedly connected with transmission bulge loop 5 of extending the bulge frame 23, when extending the inside in-process of bulge frame 23 entering waterproof casing 22, the transmission bulge loop 5 that its surface set up can extrude elasticity lamella 25, further can make elasticity lamella 25 drive the swing spacing 26 that its tip set up and get into slope cell body 24 inside smoothly, otherwise, through dragging location casing 21, can make and extend the contact of bulge frame 23 and dismantle with swing spacing 26.

The bottom of location lid 21 just is close to edge fixedly connected with seal ring 6, seal ring 6 extends in waterproof casing 22's inner chamber and leans on the top, and after this waterproof casing 22 and location casing 21 and extension lug 23 locking connection accomplished, seal ring 6 can be connected waterproof casing 22's top clearance department, effectively improves this canned type level sensor's sealing performance, avoids the inside of water liquid entering treater subassembly 2 to cause the influence to its inside circuit assembly.

Sensor body 1's top just leans on outside fixedly connected with screw to insert ring 8, and the recess with 8 looks adaptations of screw access ring is seted up at waterproof casing 22's top, and waterproof casing 22's surface is provided with wiring port 4 to the circuit inserts, connects the inside circuit subassembly of extension lug 23.

The top of location lid 21 is provided with display module 7, and display module 7 can be with the circuit subassembly electric connection who is located inside extension lug 23 to the staff carries out the discernment of data and looks over.

Wiring groove bodies 9 are symmetrically arranged on the surface of the transmission convex ring 5, and a power line can be connected into the wiring groove bodies 9 and the circuit assembly inside the transmission convex ring 5.

The outer surface of the positioning cover body 11 is annularly provided with anti-skid lugs 10, so that the friction force of a worker when holding the positioning cover body 11 to rotate is increased.

Working procedure

As shown in fig. 1-4, in the working process of the sealed liquid level sensor, the sensor body 1 contacts with water, and transmits capacitance signals to the circuit component disposed inside the extending protruding frame 23, the circuit component can transmit signals, the display component 7 can be electrically connected to the circuit component disposed inside the extending protruding block 23, so as to facilitate the identification and checking of data by the staff, in the process of installing the processor component above the sensor body 1, the positioning cover 21 can be rotated into the waterproof housing 22, the transmission protruding ring 5 can press the elastic sheet layer 25, the elastic sheet layer 25 drives the swing limiting frame 26 disposed at the end thereof to smoothly enter the inclined groove 24, lock the extending protruding frame 23 and the positioning cover 21, protect the circuit component therein, otherwise, by pulling the positioning housing 21, the extension convex frame 23 can be contacted with the swing limiting frame 26 to be detached, after the waterproof shell 22 is locked and connected with the positioning shell 21 and the extension convex block 23, the sealing washer 6 can be connected with the top gap of the waterproof shell 22, the sealing performance of the sealed liquid level sensor is effectively improved, and the phenomenon that water enters the processor assembly 2 to influence the circuit assembly inside the sealed liquid level sensor is avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The utility model provides a canned type level sensor, includes sensor body (1) and sets up in sensor body (1) top and its electric connection's treater subassembly (2), a serial communication port, treater subassembly (2) is including location lid (21), waterproof casing (22), extension flange (23), slope cell body (24), elasticity lamella (25) and the spacing (26) of swing, location lid (21) are located the top of waterproof casing (22), and the bottom center department of location lid (21) extends in the inner chamber of waterproof casing (22) through being provided with extension flange (23):

the equal symmetry in waterproof casing (22) inner chamber left and right sides is provided with elasticity lamella (25), the inner of elasticity lamella (25) all is provided with swing spacing (26), the surface of extending flange (23) just leans on the below to seted up slope cell body (24), the inner chamber dismantlement formula of extending flange (23) and slope cell body (24) is connected.

2. The sealed type liquid level sensor according to claim 1, wherein an annular flange (3) is fixedly connected to the bottom of the inner cavity of the waterproof housing (22), and a transmission flange (5) is fixedly connected to the center of the outer surface of the extension flange (23).

3. The hermetically sealed level sensor according to claim 1, characterized in that a sealing gasket (6) is fixedly connected to the bottom of the positioning cap (21) near the edge, the sealing gasket (6) extending above and within the interior of the watertight housing (22).

4. The sealed type liquid level sensor according to claim 1, wherein a screw access ring (8) is fixedly connected to the top of the sensor body (1) and the top of the waterproof housing (22) is provided with a groove adapted to the screw access ring (8).

5. The sealed-type level sensor according to claim 1, wherein an outer surface of the waterproof housing (22) is provided with a wiring port (4).

6. The sealed-type level sensor as claimed in claim 1, characterized in that a display module (7) is provided on the top of the positioning cap (21).

7. The sealed liquid level sensor according to claim 2, wherein the surface of the transmission convex ring (5) is symmetrically provided with wiring groove bodies (9).

8. The sealed type level sensor according to claim 1, wherein the positioning cap (21) is provided with anti-slip projections (10) arranged in a ring on the outer surface thereof.

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