Magnetic coupling isolation device of magnetic floater liquid level meter

Abstract

The utility model relates to the technical field of liquid level meters, in particular to a magnetic coupling isolation device of a magnetic floater liquid level meter, which comprises a body pipe, a strong magnetic floater is arranged in the body pipe, two liquid guide pipes are arranged on the outer wall of the body pipe, a bottom flange of the body pipe is connected with a blow-off pipe with a valve, and the outer wall of the body pipe is connected with a turning plate box through two hoops. The outer side of the turning plate box is sleeved with an isolation plate, two fixing bases used for positioning the isolation plate are arranged on the outer wall of the body pipe, and a transparent acrylic plate is arranged on the front side of the isolation plate in a penetrating mode. According to the magnetic coupling isolation device of the magnetic floater liquid level meter, the isolation plate is arranged on the outer side of the turning plate box, the transparent acrylic plate is arranged on the front side of the isolation plate in a penetrating mode, and the transparent acrylic plate does not make direct contact with the glass mask, so that the glass mask can be protected against external scraping, pollution and impact damage; therefore, the internal magnetic coupling structure and the magnetic turning column indication panel are protected, and long-term stable operation of equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level meter technical field, concretely is the magnetic coupling isolation device of magnetic float liquid level meter. BACKGROUND

[0002] Magnetic float liquid level meter (also called magnetic float liquid level meter) is a kind of liquid level monitoring device widely used in industrial measurement, and its working principle is based on communicating vessel principle, buoyancy principle and magnetic coupling effect.The main guide pipe of liquid level meter in the equipment is connected with the container to be measured, and through communicating vessel principle, the liquid level change in the container directly causes the rise and fall of the liquid level in the main guide pipe.The permanent magnet steel is embedded in the float, and when the float moves up and down with the change of liquid level, the permanent magnet steel transmits the position signal of the float to the external magnetic flip column indicating panel through magnetic coupling effect, drives the red and white flip column on the panel to turn over 180 °.The red and white two colors directly reflect the change of liquid level height, which is convenient for staff to observe and record.This design is widely used in petrochemical, metallurgy, electric power, food processing and other industries with its simple, reliable and intuitive advantages.

[0003] Magnetic coupling effect is the core technology of magnetic float liquid level meter, and the position change of the float is transmitted through magnetic property, so that the liquid level change can be directly displayed on the indicating panel, however, the magnetic coupling structure and magnetic flip column indicating panel in the prior art are designed in the flip box, and the flip box is usually composed of aluminum alloy shell and glass cover, the glass cover provides a window for the magnetic flip column, which is convenient for accurately reading the liquid level indication, however, in the use process, the glass cover may be scratched, contaminated or aged due to long-term exposure to the outside environment, resulting in unclear display, affecting the reading of liquid level data, in addition, the glass cover is also easy to break due to collision, especially in industrial environment, this situation may cause equipment damage, and even there is a security risk, in view of this, we propose the magnetic coupling isolation device of magnetic float liquid level meter. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing the magnetic coupling isolation device of magnetic float liquid level meter to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The magnetic coupling isolation device of the magnetic float level gauge includes a main tube containing a strong magnetic buoy. The main tube is the core component of the magnetic float level gauge, and the strong magnetic buoy inside is used to sense changes in the liquid level. The outer wall of the main tube has two symmetrically arranged liquid guide tubes, which are connected to the container to be detected, allowing the solution in the container to enter the main tube. A drain pipe with a valve is connected to the bottom flange of the main tube for draining accumulated liquid or cleaning the inside of the main tube. A flap box is connected to the outer wall of the main tube by two clamps, and the flap box contains a magnetic coupling device. The combined structure and magnetic flip-column indicator panel receive the position signal of the strong magnetic buoy through magnetic coupling and intuitively display the liquid level height through the red and white color change of the flip column. The front of the flip box is equipped with a glass cover, and an isolation plate is fitted on the outside of the flip box. The outer wall of the main body tube is equipped with two fixing seats for positioning the isolation plate. A transparent acrylic plate is inserted through the front of the isolation plate. The transparent acrylic plate is located directly in front of the glass cover but does not contact it, thus protecting the glass cover and isolating and protecting the magnetic coupling structure and magnetic flip-column indicator panel inside the flip box.

[0007] Preferably, a frame-shaped groove is provided on the rear side of the inner wall of the isolation plate, and a frame-shaped rubber pad is adhered in the frame-shaped groove. The inner wall of the frame-shaped rubber pad is tightly fitted to the outer side of the flip box, which plays a role in buffering, protection and sealing.

[0008] Preferably, the two fixing seats are respectively positioned at the upper and lower ends of the isolation plate for positioning and installing the isolation plate. The fixing seat includes a semi-circular first fixing block, and a detachable semi-circular second fixing block is provided on the rear side of the semi-circular first fixing block. The semi-circular first fixing block and the semi-circular second fixing block are clamped and fixed to the outside of the main body tube.

[0009] Preferably, the first semicircular fixing block has a first protrusion at both ends of its convex surface, and the second semicircular fixing block has a second protrusion at both ends of its convex surface. The second protrusion has a mounting hole on its rear side, and a bolt is connected in the mounting hole. The threaded end of the bolt is threaded to the rear side of the first protrusion, so that the first semicircular fixing block and the second semicircular fixing block are fixed on the outside of the main body tube, thereby fixing the position of the fixing seat and the main body tube.

[0010] Preferably, the concave surfaces of the first and second semi-circular annular fixing blocks are both bonded with rubber liners. The concave surfaces of the rubber liners are tightly fitted to the outer wall of the main tube, which increases the friction between the fixing seat and the main tube, improves stability, and protects the main tube.

[0011] Preferably, the convex surface of the semi-circular first fixing block is provided with a connecting plate, and the front side of the connecting plate and near the left and right ends are provided with positioning blocks. The upper and lower sides of the isolation plate are provided with docking plates, and the rear side of the docking plate is provided with a circular insertion hole for the positioning blocks to be inserted, so as to realize a stable connection between the isolation plate and the fixing base.

[0012] Preferably, a magnet is embedded in the middle of the front side of the connecting plate, and an iron sheet that is attracted and connected to the magnet is embedded in the middle of the rear side of the docking plate, which enhances the fixing effect of the isolation plate and makes it easier for workers to disassemble and assemble the isolation plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The magnetic coupling isolation device of this magnetic float level gauge effectively protects the glass cover inside the flip box by setting an isolation plate on the outside of the flip box and installing a transparent acrylic plate through the front of the isolation plate. The transparent acrylic plate is located directly in front of the glass cover and does not directly contact the glass cover. In this way, in the industrial environment, the isolation plate can protect the glass cover from external scratches, contamination and impact damage, thereby avoiding the impact on the normal operation of the equipment due to the breakage of the glass cover and extending the service life of the equipment.

[0015] 2. The magnetic coupling isolation device of the magnetic float level gauge has a frame-shaped groove on the rear side of the inner wall of the isolation plate, into which a frame-shaped rubber pad is bonded. The frame-shaped rubber pad fits tightly against the outer side of the flip box. The frame-shaped rubber pad not only plays a role in buffering and protection, but also further enhances the sealing of the device, preventing dust, moisture and other harmful substances from entering the flip box, thereby protecting the internal magnetic coupling structure and magnetic flip column indicator panel, and ensuring the long-term stable operation of the equipment.

[0016] 3. The magnetic coupling isolation device of this magnetic float level gauge uses a fixed base to position the isolation plate. The fixed base consists of a semi-circular first fixing block and a semi-circular second fixing block, which are fixed together by bolts. In addition, the fixed base is designed with a rubber liner to ensure a tight fit with the outer wall of the main tube, which improves the friction and stability of the fixed base and effectively prevents the isolation plate from shifting during use. The isolation plate and the fixed base are connected by a positioning plug and a circular plug hole to further achieve precise positioning. Furthermore, the isolation plate is also attracted to the iron sheet by a magnet, which improves the connection strength and simplifies the installation and disassembly process, making equipment maintenance easier. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the assembly structure of the fixing base and the main body tube in this utility model;

[0021] Figure 5 This is a schematic diagram of the assembly structure of the isolation plate and the frame-shaped rubber pad in this utility model;

[0022] In the diagram: 1. Main body tube; 10. Liquid guide tube; 2. Clamp; 3. Flip-plate box; 4. Fixing base; 40. Semi-circular first fixing block; 41. First protrusion; 42. Semi-circular second fixing block; 43. Second protrusion; 430. Mounting hole; 44. Bolt; 45. Rubber liner; 46. Positioning insert; 47. Magnet; 48. Connecting plate; 5. Isolation plate; 50. Transparent acrylic plate; 51. Butt joint plate; 510. Circular insertion hole; 52. Frame-shaped groove; 53. Iron sheet; 6. Drain pipe; 7. Frame-shaped rubber pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Please see Figures 1-5 This utility model provides a technical solution:

[0026] The magnetic coupling isolation device of the magnetic float level gauge includes a main tube 1, inside which a strong magnetic float is installed. The main tube 1 is the core component of the magnetic float level gauge, and the strong magnetic float inside is used to sense changes in the liquid level. Two symmetrically arranged liquid guide pipes 10 are provided on the outer wall of the main tube 1. The liquid guide pipes 10 are connected to the container to be detected, allowing the solution in the container to enter the main tube 1. A drain pipe 6 with a valve is connected to the bottom flange of the main tube 1 for draining accumulated liquid or cleaning the inside of the main tube 1. A flap box 3 is connected to the outer wall of the main tube 1 by two clamps 2. The flap box 3 contains a magnetic... The coupling structure and magnetic flip column indicator panel receive the position signal of the strong magnetic buoy through magnetic coupling and intuitively display the liquid level height through the red and white color change of the flip column. The front of the flip box 3 is equipped with a glass cover, and the outer side of the flip box 3 is fitted with an isolation plate 5. The outer wall of the main body tube 1 is equipped with two fixing seats 4 for positioning the isolation plate 5. A transparent acrylic plate 50 is inserted through the front of the isolation plate 5. The transparent acrylic plate 50 is located directly in front of the glass cover but does not contact it, thus protecting the glass cover and isolating and protecting the magnetic coupling structure and magnetic flip column indicator panel inside the flip box 3.

[0027] In this embodiment, a frame-shaped groove 52 is provided on the rear side of the inner wall of the isolation plate 5. A frame-shaped rubber pad 7 is adhered in the frame-shaped groove 52. The inner wall of the frame-shaped rubber pad 7 is tightly fitted with the outer side of the flip box 3, which plays the role of buffering, protection and sealing.

[0028] Specifically, the two fixing seats 4 respectively position the upper and lower ends of the isolation plate 5 for positioning and installing the isolation plate 5. The fixing seat 4 includes a semi-circular first fixing block 40, and a detachable semi-circular second fixing block 42 is provided on the rear side of the semi-circular first fixing block 40. The semi-circular first fixing block 40 and the semi-circular second fixing block 42 are clamped and fixed to the outside of the main body tube 1.

[0029] Furthermore, the first semicircular fixing block 40 has a first protrusion 41 at both ends of its convex surface, and the second semicircular fixing block 42 has a second protrusion 43 at both ends of its convex surface. The second protrusion 43 has a mounting hole 430 on its rear side, and a bolt 44 is connected in the mounting hole 430. The threaded end of the bolt 44 is threaded to the rear side of the first protrusion 41, so that the first semicircular fixing block 40 and the second semicircular fixing block 42 are fixed on the outside of the main body tube 1, thereby fixing the position of the fixing seat 4 and the main body tube 1.

[0030] Furthermore, rubber liners 45 are bonded to the concave surfaces of the semi-circular first fixing block 40 and the semi-circular second fixing block 42. The concave surfaces of the rubber liners 45 are tightly fitted to the outer wall of the main body tube 1 to increase the friction between the fixing seat 4 and the main body tube 1, improve stability, and at the same time protect the main body tube 1.

[0031] Furthermore, the convex surface of the semi-circular first fixing block 40 is provided with a connecting plate 48, and the front side of the connecting plate 48 and the position near the left and right ends are provided with positioning plugs 46. The upper and lower sides of the isolation plate 5 are provided with docking plates 51, and the rear side of the docking plate 51 is provided with a circular insertion hole 510 for the positioning plugs 46 to be inserted, so as to realize the stable connection between the isolation plate 5 and the fixing seat 4.

[0032] Furthermore, a magnet 47 is embedded in the middle of the front side of the connecting plate 48, and an iron sheet 53 that is attracted and connected to the magnet 47 is embedded in the middle of the rear side of the docking plate 51, which enhances the fixing effect of the isolation plate 5 and makes it easier for staff to disassemble and assemble the isolation plate 5.

[0033] In this embodiment, the magnetic coupling isolation device of the magnetic float level gauge is used by first connecting the main body tube 1 to the container to be tested, ensuring that the liquid can enter the interior of the main body tube 1 through the liquid guide tube 10. The bottom of the main body tube 1 is connected to the drain pipe 6 through a flange, and the valve of the drain pipe 6 is closed to prevent liquid leakage. The magnetic coupling structure and magnetic flip column indicator panel inside the flip box 3 receive the float signal and display the liquid level change through magnetic coupling. The isolation plate 5 is fitted onto the outside of the flip box 3. The transparent acrylic plate 50 of the isolation plate 5 protects the glass cover on the front side of the flip box 3. The upper and lower ends of the isolation plate 5 are positioned by the fixing base 4. The fixing base 4 consists of a semi-circular first fixing block 40 and a semi-circular... The second fixing block 42 is fastened by bolts 44 and tightly fitted to the main body tube 1 by rubber liner 45 to improve stability. At the same time, the positioning plug 46 on the connecting plate 48 is inserted into the circular plug hole 510 on the docking plate 51 of the isolation plate 5, and the isolation plate 5 is further fixed by the adsorption of magnet 47 and iron sheet 53. When the equipment is running, the liquid in the container enters the main body tube 1 through the liquid guide pipe 10 and causes the buoy position to change. The permanent magnet inside the buoy transmits the signal to the magnetic flip column indicator panel in the flip box 3 through magnetic coupling. The flip column displays the liquid level height intuitively by flipping red and white. The staff observes the liquid level change through the transparent acrylic plate 50.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A magnetic coupling isolation device for a magnetic float level gauge, comprising a main body tube (1), wherein a strong magnetic float is provided inside the main body tube (1), characterized in that: The outer wall of the main body tube (1) is provided with two liquid guide tubes (10) arranged symmetrically in the upper and lower positions. The bottom flange of the main body tube (1) is connected to a drain pipe (6) with a valve. The outer wall of the main body tube (1) is connected to a flap box (3) through two clamps (2). An isolation plate (5) is sleeved on the outside of the flap box (3). The outer wall of the main body tube (1) is provided with two fixing seats (4) for positioning the isolation plate (5). A transparent acrylic plate (50) is provided through the front side of the isolation plate (5).

2. The magnetic coupling isolation device for the magnetic float level gauge according to claim 1, characterized in that: A frame-shaped groove (52) is provided on the rear side of the inner wall of the isolation plate (5), and a frame-shaped rubber pad (7) is bonded inside the frame-shaped groove (52). The inner wall of the frame-shaped rubber pad (7) is tightly fitted to the outer side of the flip box (3).

3. The magnetic coupling isolation device for the magnetic float level gauge according to claim 1, characterized in that: The two fixing seats (4) respectively position the upper and lower ends of the isolation plate (5). The fixing seat (4) includes a semi-circular first fixing block (40). A detachable semi-circular second fixing block (42) is provided on the rear side of the semi-circular first fixing block (40). The semi-circular first fixing block (40) and the semi-circular second fixing block (42) are clamped and fixed to the outside of the main body tube (1).

4. The magnetic coupling isolation device for the magnetic float level gauge according to claim 3, characterized in that: The first semi-circular annular fixing block (40) has a first protrusion (41) at both ends of its convex surface, and the second semi-circular annular fixing block (42) has a second protrusion (43) at both ends of its convex surface. The second protrusion (43) has a mounting hole (430) on its rear side. A bolt (44) is connected in the mounting hole (430), and the threaded end of the bolt (44) is threaded to the rear side of the first protrusion (41).

5. The magnetic coupling isolation device for the magnetic float level gauge according to claim 3, characterized in that: The concave surfaces of the first semi-circular fixing block (40) and the second semi-circular fixing block (42) are both bonded with rubber liners (45), and the concave surfaces of the rubber liners (45) are tightly fitted to the outer wall of the main tube (1).

6. The magnetic coupling isolation device for the magnetic float level gauge according to claim 3, characterized in that: The convex surface of the semi-circular first fixing block (40) is provided with a connecting plate (48). The front side of the connecting plate (48) and the position near the left and right ends are provided with positioning plugs (46). The upper and lower sides of the isolation plate (5) are provided with docking plates (51). The rear side of the docking plate (51) is provided with a circular insertion hole (510) for the positioning plugs (46) to be inserted.

7. The magnetic coupling isolation device for the magnetic float level gauge according to claim 6, characterized in that: A magnet (47) is embedded in the middle of the front side of the connecting plate (48), and an iron sheet (53) is embedded in the middle of the rear side of the docking plate (51) and is attracted and connected to the magnet (47).

Images