CN210375303U

CN210375303U - Waterproof sealing type liquid level sensor

Info

Publication number: CN210375303U
Application number: CN201921742829.3U
Authority: CN
Inventors: 吴明
Original assignee: Nanjing Jiefa Automation Engineering Co Ltd
Current assignee: Nanjing Jiefa Automation Engineering Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-04-21
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a waterproof sealing type level sensor, the electric iron comprises a cylinder body, the bottom threaded connection of cylinder has the base, the first waterproof rubber ring of bottom fixedly connected with of base, the embedding is connected between first waterproof rubber ring and the cylinder, the hemispherical toughened glass of bottom fixedly connected with of base, the sealed gum cover of base top fixedly connected with, the embedding of sealed gum cover is connected with the embedding and is connected with the sensor probe. The utility model discloses in, when the length of needs adjusting device, through the driving motor who starts in the fixed column, drive the rotation between screw shaft and the thread groove through driving motor, make fixed column and spliced pole separation, flexible pipe simultaneously, waterproof flexible cover is elongated, because the cable of ventilating in the expansion pipe has extra length with the circular telegram wire, consequently the cable of ventilating can not influence the length adjustment of equipment with the circular telegram wire, can avoid droing between fixed column and the spliced pole because of setting up of gag lever post and spacing groove, there is certain practicality.

Description

Waterproof sealing type liquid level sensor

Technical Field

The utility model relates to a level sensor technical field especially relates to a waterproof sealing type level sensor.

Background

The liquid level sensor is a pressure sensor for measuring liquid level, and is widely applied to the monitoring fields of water supply and drainage, sewage treatment, reservoirs, riverways, oceans and the like in cities;

because level sensor's operating characteristic, consequently can inevitable contact water when using, current level sensor's waterproof measure is comparatively traditional, often only sets up waterproof rubber in the gap department on surface, and this is unfavorable for level sensor's long-term use, and current level sensor does not be equipped with corresponding flexible function moreover, and this makes in the operational environment that some staff of being inconvenient for got into, is difficult to use the sensor to measure the water level data of corresponding check point.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a waterproof sealing type liquid level sensor.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a waterproof sealing type liquid level sensor comprises a cylinder, wherein the bottom of the cylinder is in threaded connection with a base, the bottom of the base is fixedly connected with a first waterproof rubber ring, the first waterproof rubber ring is connected with the cylinder in an embedded mode, the bottom of the base is fixedly connected with hemispherical toughened glass, the top of the base is fixedly connected with a sealing rubber sleeve, the sealing rubber sleeve is connected with a sensor probe in an embedded mode, the top of the sensor probe is provided with a fixing frame, a PCB is arranged in the fixing frame, the bottom of the PCB is fixedly connected with the sensor probe, the top of the PCB is fixedly connected with an air cable and an electrified lead, the air cable and the electrified lead are jointly embedded and connected with a telescopic pipe, the top of the fixing frame is provided with a connecting column, and the bottom of the connecting column is fixedly connected with a second waterproof, and the embedding is connected between waterproof rubber ring of second and the mount, threaded connection between spliced pole and the cylinder, be provided with the waterproof rubber ring of third between spliced pole and the cylinder, fixed connection between waterproof rubber ring of third and the spliced pole, the top of spliced pole is provided with the fixed column, the bottom fixedly connected with driving motor of fixed column, driving motor's output fixedly connected with screw shaft, the position that the top of spliced pole corresponds the screw shaft has seted up the thread groove, and threaded connection between thread groove and the screw shaft, driving motor's three gag lever post of position fixedly connected with is kept away from to the bottom of fixed column, the position that the top of spliced pole corresponds three gag lever post has all seted up the spacing groove, and all imbeds between three gag lever post and the three gag lever post and is connected.

As a further description of the above technical solution:

the outer surfaces of the connecting columns and the fixing columns are fixedly connected with a waterproof telescopic sleeve close to the opening and closing part.

As a further description of the above technical solution:

the telescopic pipe is embedded and connected with the connecting column and the fixing column together.

As a further description of the above technical solution:

the top end of the telescopic pipe is fixedly connected with the wire conduit, the wire conduit is fixedly connected with the fixed column, the wire conduit penetrates through the top end of the fixed column, and the wire conduit is embedded and connected with the ventilation cable and the electrified wire together.

As a further description of the above technical solution:

the surface of the ventilation cable is provided with a plurality of ventilation holes, and inert liquid is filled in the hemispherical toughened glass.

As a further description of the above technical solution:

the inside fixedly connected with clamp splice of mount, the embedding is connected between clamp splice and the PCB board.

The utility model discloses following beneficial effect has:

1. this waterproof sealing type level sensor, screw up cylinder and spliced pole, in sealing the gum cover on embedding the base with the sensor probe after that, then will fill hemispherical toughened glass who has inert liquid is twisted together to the cylinder along with the base on, can effectively avoid in the moisture infiltration cylinder through first waterproof rubber ring and third waterproof rubber ring, can avoid in external moisture infiltration mount when dismantling the cylinder through sealed gum cover and second waterproof rubber ring, thereby protect the PCB board, the cable of ventilating and circular telegram wire, the clamp splice can play the fixed action to the PCB board in addition, protect the PCB board, the life of extension equipment.

2. This waterproof sealing type level sensor, when needs adjusting device's length, through the driving motor who starts in the fixed column, drive the rotation between screw shaft and the thread groove through driving motor, make fixed column and spliced pole separation, flexible pipe simultaneously, waterproof flexible cover is elongated, because the cable of ventilating in the flexible pipe has extra length with the circular telegram wire, consequently the cable of ventilating can not influence the length adjustment of equipment with the circular telegram wire, can avoid droing between fixed column and the spliced pole because of setting up of gag lever post and spacing groove, there is certain practicality.

Drawings

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

FIG. 2 is a schematic view of the fixing frame of the present invention;

fig. 3 is a schematic view of the fixing column structure of the present invention.

Illustration of the drawings: 1. a cylinder; 2. semispherical toughened glass; 3. a sensor probe; 4. a PCB board; 5. a fixed mount; 6. a clamping block; 7. sealing the rubber sleeve; 8. a first waterproof rubber ring; 9. a plenum cable; 10. a power-on wire; 11. a conduit; 12. a telescopic pipe; 13. connecting columns; 14. a waterproof telescopic sleeve; 15. fixing a column; 16. a thread groove; 17. a drive motor; 18. a threaded shaft; 19. a limiting groove; 20. a limiting rod; 21. a second waterproof rubber ring; 22. a third waterproof rubber ring; 23. a base.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a waterproof sealing type liquid level sensor comprises a cylinder 1, wherein the bottom of the cylinder 1 is in threaded connection with a base 23, the bottom of the base 23 is fixedly connected with a first waterproof rubber ring 8, the first waterproof rubber ring 8 is connected with the cylinder 1 in an embedded manner, the bottom of the base 23 is fixedly connected with hemispherical toughened glass 2, the top of the base 23 is fixedly connected with a sealing rubber sleeve 7, the sealing rubber sleeve 7 is connected with a sensor probe 3 in an embedded manner, the top of the sensor probe 3 is provided with a fixing frame 5, a PCB 4 is arranged in the fixing frame 5, the bottom of the PCB 4 is fixedly connected with the sensor probe 3, the top of the PCB 4 is fixedly connected with an air cable 9 and an electrified lead 10, the air cable 9 and the electrified lead 10 are jointly embedded and connected with a telescopic pipe 12, the top of the fixing frame 5 is provided with a connecting column 13, and the bottom, and the second waterproof rubber ring 21 is embedded and connected with the fixing frame 5, the connecting column 13 is in threaded connection with the column body 1, a third waterproof rubber ring 22 is arranged between the connecting column 13 and the column body 1, the third waterproof rubber ring 22 is fixedly connected with the connecting column 13, the top of the connecting column 13 is provided with a fixing column 15, the bottom of the fixing column 15 is fixedly connected with a driving motor 17, an output end of the driving motor 17 is fixedly connected with a threaded shaft 18, a threaded groove 16 is formed in the position, corresponding to the threaded shaft 18, of the top end of the connecting column 13, the threaded groove 16 is in threaded connection with the threaded shaft 18, three limiting rods 20 are fixedly connected with the bottom ends of the fixing columns 15, the positions, far away from the driving motor 17, of the top ends of the connecting column 13, corresponding to the positions of the three limiting rods 20, are provided with.

The outer surfaces of the connecting column 13 and the fixing column 15 close to the opening and closing part are fixedly connected with a waterproof telescopic sleeve 14 together, so that moisture is prevented from permeating into the equipment; the telescopic pipe 12 is embedded and connected with the connecting column 13 and the fixing column 15 together, the telescopic pipe 12 can protect the ventilation cable 9 and the electrified conducting wire 10, and the ventilation cable 9 and the electrified conducting wire 10 are prevented from being clamped by the fixing column 15 and the connecting column 13 when the length of the equipment is adjusted; the top end of the telescopic pipe 12 is fixedly connected with the wire conduit 11, the wire conduit 11 is fixedly connected with the fixed column 15, the wire conduit 11 penetrates through the top end of the fixed column 15, and the wire conduit 11 is embedded and connected with the ventilation cable 9 and the electrified wire 10 together, so that the ventilation cable 9 and the electrified wire 10 can be led out conveniently; the surface of the ventilation cable 9 is provided with a plurality of ventilation holes, and inert liquid is filled in the hemispherical toughened glass 2, so that the influence of thermal expansion and cold contraction on the sensor probe 3 is prevented; the inside fixedly connected with clamp splice 6 of mount 5, the embedding is connected between clamp splice 6 and the PCB board 4, is convenient for play the fixed action to PCB board 4.

The working principle is as follows: when the waterproof sealing type liquid level sensor is used, the cylinder 1 and the connecting column 13 are screwed tightly, the sensor probe 3 is embedded into the sealing rubber sleeve 7 on the base 23, then the hemispherical toughened glass 2 filled with inert liquid is screwed onto the cylinder 1 along with the base 23, the penetration of moisture into the cylinder 1 can be effectively avoided through the first waterproof rubber ring 8 and the third waterproof rubber ring 22, the penetration of external moisture into the fixing frame 5 when the cylinder 1 is disassembled can be avoided through the sealing rubber sleeve 7 and the second waterproof rubber ring 21, so that the PCB 4, the ventilation cable 9 and the power-on lead 10 are protected, in addition, the clamping block 6 can play a fixing role on the PCB 4, the PCB 4 is protected, the service life of the device is prolonged, when the length of the device needs to be adjusted, the driving motor 17 in the fixing column 15 is started, the driving motor 17 drives the rotation between the threaded shaft 18 and the threaded groove 16, the fixed column 15 is separated from the connecting column 13, meanwhile, the telescopic pipe 12 and the waterproof telescopic sleeve 14 are lengthened, and the ventilation cable 9 and the electrified lead 10 in the telescopic pipe 12 are of surplus length, so that the ventilation cable 9 and the electrified lead 10 cannot influence the length adjustment of equipment, and the falling off between the fixed column 15 and the connecting column 13 can be avoided due to the arrangement of the limiting rod 20 and the limiting groove 19, and certain practicability is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims

1. A waterproof sealing type liquid level sensor, includes cylinder (1), its characterized in that: the bottom of the cylinder (1) is in threaded connection with a base (23), the bottom of the base (23) is fixedly connected with a first waterproof rubber ring (8), the first waterproof rubber ring (8) is connected with the cylinder (1) in an embedded manner, the bottom of the base (23) is fixedly connected with hemispherical toughened glass (2), the top of the base (23) is fixedly connected with a sealing rubber sleeve (7), the sealing rubber sleeve (7) is connected with a sensor probe (3) in an embedded manner, the top of the sensor probe (3) is provided with a fixing frame (5), a PCB (4) is arranged in the fixing frame (5), the bottom of the PCB (4) is fixedly connected with the sensor probe (3), the top of the PCB (4) is fixedly connected with an air ventilation cable (9) and an electrified lead (10), the air ventilation cable (9) and the electrified lead (10) are jointly embedded and connected with a telescopic pipe (12), the top of the fixing frame (5) is provided with a connecting column (13), the bottom of the connecting column (13) is fixedly connected with a second waterproof rubber ring (21), the second waterproof rubber ring (21) is connected with the fixing frame (5) in an embedded manner, the connecting column (13) is in threaded connection with the column body (1), a third waterproof rubber ring (22) is arranged between the connecting column (13) and the column body (1), the third waterproof rubber ring (22) is fixedly connected with the connecting column (13), the top of the connecting column (13) is provided with a fixing column (15), the bottom of the fixing column (15) is fixedly connected with a driving motor (17), the output end of the driving motor (17) is fixedly connected with a threaded shaft (18), the top end of the connecting column (13) corresponding to the threaded shaft (18) is provided with a threaded groove (16), and the threaded groove (16) is in threaded connection with the threaded shaft (18), the bottom of fixed column (15) is kept away from three gag lever post (20) of position fixedly connected with of driving motor (17), spacing groove (19) have all been seted up to the position that the top of spliced pole (13) corresponds three gag lever post (20), and all imbed between three gag lever post (19) and three gag lever post (20) and be connected.

2. The hermetically sealed type liquid level sensor according to claim 1, wherein: the outer surfaces of the connecting column (13) and the fixing column (15) are close to the opening and closing part and are fixedly connected with a waterproof telescopic sleeve (14) together.

3. The hermetically sealed type liquid level sensor according to claim 1, wherein: the telescopic pipe (12) is embedded and connected with the connecting column (13) and the fixing column (15) together.

4. The hermetically sealed type liquid level sensor according to claim 1, wherein: the top end of the telescopic pipe (12) is fixedly connected with the wire conduit (11), the wire conduit (11) is fixedly connected with the fixed column (15), the wire conduit (11) penetrates through the top end of the fixed column (15), and the wire conduit (11) is embedded and connected with the ventilation cable (9) and the power-on wire (10) together.

5. The hermetically sealed type liquid level sensor according to claim 1, wherein: the surface of the ventilation cable (9) is provided with a plurality of ventilation holes, and inert liquid is filled in the hemispherical toughened glass (2).

6. The hermetically sealed type liquid level sensor according to claim 1, wherein: the inner part of the fixing frame (5) is fixedly connected with a clamping block (6), and the clamping block (6) is connected with the PCB (4) in an embedded mode.