Sealing structure of floating ball liquid level sensor

Abstract

The utility model relates to the technical field of floating ball liquid level sensors, in particular to a sealing structure of a floating ball liquid level sensor, which comprises a guide pipe, a mounting seat fixedly connected onto the guide pipe, a connecting seat slidably connected onto the mounting seat, four sliding grooves formed in the connecting seat, guide rods fixedly connected into the sliding grooves, and fixing blocks slidably connected onto the guide rods. When the fixing blocks abut against the flange plate, the four fixing blocks are driven to slide outwards along the guide rods, the check blocks can prevent the fixing blocks from slipping off from the guide rods till the fixing blocks do not make contact with the upper surface of the flange plate any more, and at the moment, the bottom face of the installation base makes contact with the upper surface of the flange plate. The bottom face of the fixing block abuts against the lower surface of the flange plate, the side wall of the flange plate abuts against the fixing block, the rubber block on the fixing block abuts against the bottom face of the flange plate, friction force between the flange plate and the rubber block is increased, and stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level sensor technical field especially relates to a kind of sealing structure of float ball liquid level sensor. BACKGROUND

[0002] Float ball liquid level sensor is a kind of common liquid level measuring instrument, mainly by magnetic float ball, sensor, transmitter three components are formed, and the sealing part of float ball liquid level sensor includes the connecting place of sensor and container, terminal box part and so on, thus when installing float ball liquid level sensor on the flange plate of container, usually borrow a sealing structure, to avoid the liquid in container from this part leakage, cause material loss and environmental pollution and other problems.

[0003] However, when traditional float ball liquid level sensor is installed on container, it is usually fixed by flange plate, to avoid liquid in container leakage, usually a rubber ring is clamped at the connecting place of flange plate, however, since rubber ring is extruded for a long time and directly contacted with liquid, rubber ring is prone to corrosion, thus when needing to replace rubber ring, flange plate needs to be disassembled, and then repeatedly twisting bolt is needed, to cause low operation efficiency, poor flexibility, and inconvenient to replace rubber ring. SUMMARY

[0004] The utility model discloses a kind of sealing structure of float ball liquid level sensor, four fixed blocks on connecting seat are driven to move upwards by rotating ring, and then fixed block cooperates mounting seat to clamp the flange plate of container, it is convenient to quickly disassemble, and then it is convenient to replace first rubber pad and second rubber pad.The utility model realizes the above-mentioned purpose by the following technical solutions, a kind of sealing structure of float ball liquid level sensor, including conduit, installation structure is equipped on the conduit, the installation structure includes mounting seat, the top of the conduit is fixedly connected with mounting seat, the outer wall of the mounting seat is slidably connected with connecting seat, four sliding slots are set on the connecting seat, the connecting seat is cooperated with fixed structure, the fixed structure includes four guide rods, guide rod is fixedly connected in the sliding slot, guide rod is slidably connected with fixed block.

[0005] Preferably, the end of the guide rod is fixedly connected with a stop block, and a spring is fixedly connected between the stop block and the fixed block.

[0006] Preferably, a rubber block is fixedly connected to the fixed block, the cross section of the fixed block is in the shape of "U", and the bottom end of the fixed block is provided with an inclined surface.

[0007] Preferably, a rotating ring is threadedly connected to the mounting seat, and the rotating ring is rotatably connected to the connecting seat.

[0008] Preferably, the outer wall of the rotating ring is fixedly connected with two driving rods, and the two driving rods are symmetrically arranged.

[0009] Preferably, the mounting seat is in a "convex" cross-section structure, and a sealing structure is matched with the mounting seat.

[0010] Preferably, the sealing structure comprises a first rubber pad, the bottom surface of the mounting seat is clamped with the first rubber pad, the bottom surface of the mounting seat is clamped with a second rubber pad, and the first rubber pad and the second rubber pad are clamped with each other.

[0011] Preferably, the top end of the conduit is fixedly connected with a junction box, the first fixing ring and the second fixing ring are clamped between the bottom surface of the mounting seat and the junction box, the first fixing ring and the second fixing ring are fixedly connected through screws, the rubber ring is fixedly connected between the first fixing ring and the second fixing ring, and the rubber ring abuts against the conduit.

[0012] Preferably, the first rubber pad and the second rubber pad are both in a semicircular structure, and the first fixing ring and the second fixing ring are both in an arc structure.

[0013] Preferably, the upper end and the lower end of the conduit are respectively fixedly connected with an upper stop ring and a lower stop ring, and the magnetic float is slidably connected to the center position of the conduit.

[0014] The conduit is provided with the mounting structure, the top end of the conduit is fixedly connected with the mounting seat, the outer wall of the mounting seat is slidably connected with the connecting seat, four sliding grooves are formed in the connecting seat, the fixing structure is matched with the connecting seat, the guide rod is fixedly connected in the sliding groove, and the fixing block is slidably connected with the guide rod, so that the four fixing blocks on the mounting seat abut against the flange plate on the container. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is Figure 1The enlarged schematic view of part A shown;

[0017] Figure 3 The connection structure schematic view of the first rubber pad and the second rubber pad of the utility model is shown in the figure.

[0018] Figure 4 The connection structure schematic view of the mounting seat and the connecting seat of the utility model is shown in the figure.

[0019] In the figure: 1, conduit; 2, mounting structure; 201, mounting seat; 202, rotating ring; 203, connecting seat; 204, driving rod; 205, sliding slot; 3, fixed structure; 301, guide rod; 302, fixed block; 303, spring; 304, stop block; 305, rubber block; 4, sealing structure; 401, first fixed ring; 402, second fixed ring; 403, rubber ring; 404, first rubber pad; 405, second rubber pad; 406, screw; 5, junction box; 6, lower stop ring; 7, magnetic float; 8, upper stop ring. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be further illustrated by specific embodiments in combination with the drawings. Among them, the drawings are only for example explanation, and the representation is only a schematic diagram, not a real object drawing, and cannot be understood as the limitation of the utility model; in order to better illustrate the embodiment of the utility model, some components of the drawings will be omitted, enlarged or reduced, and the size of the actual product is not represented; for those skilled in the art, it is understandable that some known structures and their description in the drawings can be omitted.

[0021] Please refer to Figures 1-4As shown, a sealing structure of a float ball liquid level sensor, including a conduit 1, the conduit 1 is provided with mounting structure 2, the mounting structure 2 includes mounting seat 201, the top end of the conduit 1 is fixedly connected with mounting seat 201, the outer wall of the mounting seat 201 is slidably connected with connecting seat 203, four sliding grooves 205 are formed in the connecting seat 203, the mounting seat 201 is threadedly connected with rotating ring 202, the rotating ring 202 is rotatably connected with connecting seat 203, the outer wall of the rotating ring 202 is fixedly connected with two drive rods 204, the two drive rods 204 are symmetrically arranged, the cross section of the mounting seat 201 is in "convex" shape structure, the mounting seat 201 is matched with sealing structure 4; then rotating the drive rod 204 on the rotating ring 202, since the rotating ring 202 is threadedly connected with the mounting seat 201, the rotating ring 202 is driven to move upward, at the same time, since the rotating ring 202 is rotatably connected with the bottom connecting seat 203, the connecting seat 203 effectively avoids affecting the rotation of the rotating ring 202, the flexibility is high, the rotating ring 202 drives the connecting seat 203 to move upward, the connecting seat 203 drives four fixed blocks 302 to abut against the flange plate, at the same time, the bottom surface of the mounting seat 201 abuts against the upper surface of the flange plate, at this time, the sensor is quickly mounted on the flange plate of the container, and the firmness is high.

[0022] As a technical optimization scheme of the utility model, the connecting seat 203 is matched with a fixing structure 3, the fixing structure 3 includes four guide rods 301, the guide rod 301 is fixedly connected in the sliding groove 205, the guide rod 301 is slidably connected with a fixing block 302, the end of the guide rod 301 is fixedly connected with a stopper 304, the stopper 304 and the fixing block 302 are fixedly connected with a spring 303, the fixing block 302 is fixedly connected with a rubber block 305, the section of the fixing block 302 is a "U" letter shape structure, the bottom end of the fixing block 302 is provided with an inclined plane, the sensor is aligned with the flange plate on the container, and is inserted into the container from the center position of the flange plate, the junction box 5 at the top end of the guide pipe 1 is pressed downward, the four fixing blocks 302 on the mounting seat 201 abut against the flange plate on the container, when the inclined plane on the bottom surface of the fixing block 302 abuts against the edge of the flange plate, the four fixing blocks 302 are driven to slide outward along the guide rod 301, and the stopper 304 at the end of the guide rod 301 can avoid the fixing block 302 from sliding off the guide rod 301, the setting of the guide rod 301 increases the sliding distance of the fixing block 302 outward, is convenient for adapting to the flange plate of different radius size, is suitable for measuring the liquid level in the container of different caliber, has strong applicability, until the fixing block 302 no longer contacts the upper surface of the flange plate, at this time, the bottom surface of the mounting seat 201 and the upper surface of the flange plate contact each other, and the fixing block 302 is slid to the inside of the sliding groove 205 under the reset action of the spring 303, and the bottom surface of the fixing block 302 abuts against the lower surface of the flange plate, the side wall of the flange plate and the fixing block 302 abut against each other, the rubber block 305 on the fixing block 302 and the bottom surface of the flange plate abut against each other, the friction between the fixing block 302 and the flange plate is increased, and the stability is improved.

[0023] As a technical optimization scheme of the utility model, the sealing structure 4 includes first rubber pad 404, the bottom surface of mounting seat 201 is clamped with first rubber pad 404, the bottom surface of mounting seat 201 is clamped with second rubber pad 405, first rubber pad 404 and second rubber pad 405 are mutually clamped, the top end of conduit 1 is fixedly connected with junction box 5, the bottom surface between mounting seat 201 and junction box 5 is clamped with first fixed ring 401 and second fixed ring 402, first fixed ring 401 and second fixed ring 402 are fixedly connected through screw 406, first fixed ring 401 and second fixed ring 402 are fixedly connected with rubber ring 403, rubber ring 403 abuts conduit 1, first rubber pad 404 and second rubber pad 405 are semicircular structure, first fixed ring 401 and second fixed ring 402 are arc structure, the bottom surface of mounting seat 201 is clamped with first rubber pad 404 and second rubber pad 405 respectively, guarantee the sealing property of the connecting place of sensor and flange plate, and first rubber pad 404 and second rubber pad 405 are mutually clamped, facilitate replacement, when needing replacement, only need to reverse rotation rotating ring 202, avoid repeatedly disassembling bolt, improve operating efficiency, the top end of mounting seat 201 is fixedly connected with rubber ring 403 through first fixed ring 401 and second fixed ring 402, further guarantee the sealing property, and first fixed ring 401 and second fixed ring 402 are fixed through screw 406, and disassembly and assembly are convenient, and strong flexibility.

[0024] As a technical optimization scheme of the utility model, the upper and lower ends of conduit 1 are fixedly connected with upper baffle ring 8 and lower baffle ring 6 respectively, and the center position of conduit 1 is slidably connected with magnetic float 7, when using the sensor, when the liquid level in the container changes, the liquid generates buoyancy on magnetic float 7, so that magnetic float 7 floats up and down along conduit 1 with the rising or falling of liquid level, magnetic float 7 is internally provided with magnetic steel, and in the process of floating down of magnetic float 7, the magnetic steel in the inside will generate magnetic coupling effect with reed switch in the corresponding position in the sensor, so when the magnetic steel in magnetic float 7 approaches upper baffle ring 8 or lower baffle ring 6 respectively, the circuit state in the sensor is changed, so that the change of liquid level is converted into the change of electric signal, through the detection and processing of electric signal, remote detection, display, alarm and control functions of liquid level can be realized.

[0025] In use, the sensor is aligned with the flange on the container and inserted into the container from the center of the flange. The junction box 5 at the top of the conduit 1 is pressed down, causing the four fixing blocks 302 on the mounting base 201 to contact the flange on the container. When the inclined surface of the bottom of the fixing blocks 302 contacts the edge of the flange, the four fixing blocks 302 slide outward along the guide rod 301. The stop block 304 at the end of the guide rod 301 prevents the fixing blocks 302 from slipping off. The guide rod 301 increases the distance the fixing blocks 302 slide outward, facilitating the adaptation to flanges of different radii. It is suitable for measuring the liquid level inside containers of different diameters, exhibiting strong applicability, until the fixing blocks 302 no longer contact the upper surface of the flange. At this point, the bottom surface of the mounting base 201 is in contact with the upper surface of the flange. Simultaneously, the fixing block 302 slides into the groove 205 under the reset action of the spring 303. The bottom surface of the fixing block 302 abuts against the lower surface of the flange, and the side wall of the flange abuts against the fixing block 302. The rubber block 305 on the fixing block 302 abuts against the bottom surface of the flange, increasing the friction between them and improving stability. Then, the drive rod 204 on the rotating ring 202 is rotated. Due to the threaded connection between the rotating ring 202 and the mounting base 201, the rotating ring 202 moves upward. Simultaneously, the rotating ring 202 is rotatably connected to the connecting seat 203 at the bottom, effectively preventing the connecting seat 203 from affecting the rotation of the rotating ring 202. The rotating ring 202 moves the connecting seat 203 upwards, causing the four fixing blocks 302 to press against the flange. Simultaneously, the bottom surface of the mounting base 201 contacts the upper surface of the flange, quickly and securely installing the sensor onto the container's flange. The bottom surface of the mounting base 201 is secured with a first rubber gasket 404 and a second rubber gasket 405, ensuring a tight seal between the sensor and the flange. The interlocking of the first and second rubber gaskets 404 and 405 facilitates future replacement; simply reverse the rotation of the rotating ring 202 to avoid repeated bolt disassembly, improving operational efficiency. The top of the mounting base 201 is secured by the first and second fixing rings 401 and 402. A rubber ring 403 further ensures sealing, and the first fixing ring 401 and the second fixing ring 402 are fixed together by screws 406, making disassembly and assembly convenient and flexible. When using the sensor, when the liquid level in the container changes, the liquid exerts buoyancy on the magnetic float 7, causing the magnetic float 7 to float up and down along the guide tube 1 as the liquid level rises or falls. The magnetic float 7 contains a magnet. During the downward movement of the magnetic float 7, the magnet inside it magnetically couples with the reed switch at the corresponding position inside the sensor. Therefore, when the magnet in the magnetic float 7 approaches the upper retaining ring 8 or the lower retaining ring 6, it changes the circuit state inside the sensor, thus converting the change in liquid level into a change in electrical signal. Through the detection and processing of this electrical signal…Remote detection, display, alarm and control functions of liquid level can be realized.

[0026] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A sealed structure of a float level sensor comprising a conduit (1), characterized in that: The conduit (1) is provided with a mounting structure (2), the mounting structure (2) comprises a mounting seat (201), the top end of the conduit (1) is fixedly connected with the mounting seat (201), the outer wall of the mounting seat (201) is slidably connected with a connecting seat (203), four sliding grooves (205) are formed in the connecting seat (203), and the connecting seat (203) is matched with a fixing structure (3).

2. A sealed structure of a float level sensor according to claim 1, characterized in that: The end of the guide rod (301) is fixedly connected with a stop block (304), and the stop block (304) and the fixed block (302) are fixedly connected with a spring (303).

3. A sealed structure for a float level sensor according to claim 2, wherein: The fixed block (302) is fixedly connected with a rubber block (305), the cross section of the fixed block (302) is in a "U" shape structure, and the bottom end of the fixed block (302) is provided with an inclined surface.

4. The sealed structure of a float level sensor according to claim 1, wherein: The mounting seat (201) is threadedly connected with a rotating ring (202), and the rotating ring (202) is rotatably connected with the connecting seat (203).

5. A sealed structure for a float level sensor according to claim 4, wherein: The outer wall of the rotating ring (202) is fixedly connected with two driving rods (204), and the two driving rods (204) are symmetrically arranged.

6. The sealed structure of a float level sensor according to claim 1, wherein: The cross section of the mounting seat (201) is in a "convex" shape structure, and the mounting seat (201) is matched with a sealing structure (4).

7. A sealed structure for a float level sensor according to claim 6, wherein: The sealing structure (4) comprises a first rubber pad (404), the bottom surface of the mounting seat (201) is clamped with the first rubber pad (404), and the bottom surface of the mounting seat (201) is clamped with a second rubber pad (405).

8. The sealed structure of a float level sensor according to claim 1, wherein: The top end of the conduit (1) is fixedly connected with a junction box (5), the bottom surface between the mounting seat (201) and the junction box (5) is clamped with a first fixing ring (401) and a second fixing ring (402), the first fixing ring (401) and the second fixing ring (402) are fixedly connected through screws (406), the first fixing ring (401) and the second fixing ring (402) are fixedly connected with a rubber ring (403), and the rubber ring (403) abuts against the conduit (1).

9. The sealed structure of a float level sensor according to claim 7, wherein: The first rubber pad (404) and the second rubber pad (405) are both in a semicircular structure, and the first rubber pad (404) and the second rubber pad (405) are clamped with each other.

10. The sealed structure of a float level sensor according to claim 8, wherein: The upper and lower ends of the conduit (1) are respectively fixedly connected with an upper retaining ring (8) and a lower retaining ring (6), and the central position of the conduit (1) is slidably connected with a magnetic float (7).

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