Magnetic levitation ball liquid level meter

Abstract

The utility model discloses a kind of magnetic levitation ball liquid level meters, relating to liquid level meter technical field, including measuring tube, measuring circuit is equipped in the measuring tube, the float ball is slidably connected outside the measuring tube, the magnet is fixedly connected in the float ball, the one end of the measuring tube is fixedly connected with end cap, the other end of the measuring tube is connected with threading tube, the one end of the measuring tube and threading tube is respectively fixedly connected with first joint and second joint, the first joint is fixedly connected with second joint by screw, sealing plug is fixed between the first joint and second joint, the signal line of the measuring circuit is through threaded hole and penetrates sealing plug. The magnetic levitation ball liquid level meter, simple structure, easy to assemble, good sealing effect, while significantly reduce manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of liquid level gauge technology, specifically a magnetic levitation ball liquid level gauge. Background Technology

[0002] The magnetic float level gauge uses a magnetic float as the measuring element. Its working principle is to use the magnetic coupling between the ring magnet inside the float and the reed switch inside the measuring tube to make the internal resistance change linearly, and finally the transmitter converts it into a standard current signal.

[0003] Currently, traditional level gauges are mostly made of metal. Although metal provides good strength and corrosion resistance, the high cost of raw materials and complex processing significantly increases the overall manufacturing cost, limiting their adoption in the low-to-mid-end market. Furthermore, the sealing structure of metal measuring tubes is relatively complex, requiring various auxiliary connectors or cumbersome assembly processes, which significantly increases labor and time costs in production.

[0004] Therefore, it is necessary to propose a magnetic levitation ball level gauge to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this invention is to provide a magnetic levitation ball level gauge with a simple structure and low manufacturing cost, so as to solve the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a magnetic float level gauge, comprising a measuring tube, a measuring circuit inside the measuring tube, a float slidably connected to the outside of the measuring tube, a magnet fixedly connected inside the float, an end cap fixedly connected to one end of the measuring tube, and a conduit connected to the other end of the measuring tube. A first connector and a second connector are fixedly connected to adjacent ends of the measuring tube and the conduit, respectively. The first connector and the second connector are fixedly connected by screws, and a sealing plug is clamped and fixed between the first connector and the second connector. The signal line of the measuring circuit passes through the sealing plug through the conduit hole.

[0007] Preferably, the end cap, measuring tube, and first connector are all made of plastic, and the end cap and first connector are heat-fused to the measuring tube.

[0008] Preferably, a limiting hole is provided on the side of the second connector near the first connector, and a limiting post is fixedly connected to the first connector at the position corresponding to the limiting hole.

[0009] Preferably, the inner diameter of the float is smaller than the diameter of the end cap.

[0010] Preferably, the conduit has a curved section with an acute angle.

[0011] Preferably, the conduit is filled with sealing filler.

[0012] Beneficial effects Compared with the prior art, this utility model provides a magnetic levitation ball level gauge, which has the following beneficial effects: 1. This magnetic float level gauge has a simple structure and is easy to assemble. It fixes end caps and sealing plugs at both ends of the measuring tube, and clamps and fixes the sealing plugs by the cooperation of the second connector and the first connector.

[0013] 2. This magnetic levitation ball level gauge, by using plastic end caps, measuring tubes and first connectors, and by heat-fusion connecting the end caps and first connectors to the measuring tubes, can significantly reduce manufacturing costs and make connection more convenient.

[0014] 3. This magnetic levitation ball level gauge can further improve its sealing effect by setting a curved section with an acute angle on the conduit and filling it with sealing filler. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the structure of this utility model; Figure 3 This is a partial exploded view of the structure of this utility model; Figure 4 This is a cross-sectional schematic diagram of the sealing plug of this utility model; Figure 5 This is a cross-sectional schematic diagram of the float of this utility model.

[0016] In the diagram: 1. End cap; 2. Float; 3. Measuring tube; 4. Conduit; 5. Sealing filler; 6. Second connector; 7. Limiting hole; 8. Limiting post; 9. First connector; 10. Screw; 11. Sealing plug; 12. Conduit; 13. Magnet; 14. Measuring circuit. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figure 1-5As shown, a magnetic float level gauge includes a measuring tube 3, a measuring circuit 14 inside the measuring tube 3, a float 2 slidably connected to the outside of the measuring tube 3, a magnet 13 fixedly connected inside the float 2, an end cap 1 fixedly connected to one end of the measuring tube 3, and a conduit 4 connected to the other end of the measuring tube 3. A first connector 9 and a second connector 6 are fixedly connected to adjacent ends of the measuring tube 3 and the conduit 4, respectively. The first connector 9 and the second connector 6 are fixedly connected by screws 10. A sealing plug 11 is clamped and fixed between the first connector 9 and the second connector 6. The signal line of the measuring circuit 14 passes through the sealing plug 11 through the conduit hole 12.

[0019] The end cap 1 and the sealing plug 11 seal both ends of the measuring tube 3 respectively. The end cap 1 prevents the liquid to be detected from entering the measuring tube 3, and the sealing plug 11 prevents rainwater from entering the measuring tube 3 through the connection point. The sealing plug 11 is clamped and fixed by the cooperation of the second connector 6 and the first connector 9 so as to facilitate the installation and positioning of the sealing plug 11.

[0020] To reduce costs, the end cap 1, measuring tube 3, and first connector 9 are all made of plastic, and the end cap 1 and first connector 9 are heat-fused to the measuring tube 3. Preferably, PVC or PE material is used. Compared with traditional metal structures, the use of plastic material can significantly reduce manufacturing costs. In addition, the use of heat-fused connection makes the connection more efficient and the sealing performance better.

[0021] To facilitate assembly, a limiting hole 7 is provided on the side of the second connector 6 near the first connector 9, and a limiting post 8 is fixedly connected to the first connector 9 at the position corresponding to the limiting hole 7. When connecting the second connector 6 and the first connector 9, the limiting post 8 is inserted into the limiting hole 7 to ensure that the second connector 6 and the first connector 9 can be accurately aligned, facilitating the subsequent screwing in of the bolt.

[0022] Specifically, the inner diameter of the float 2 is smaller than the diameter of the end cap 1. The end cap 1 prevents the float 2 from detaching from the measuring tube 3.

[0023] In some embodiments, the conduit 4 has a curved section with an acute angle. By providing the curved section on the conduit 4, the opening at the end of the conduit 4 away from the measuring tube 3 is tilted downwards, thereby preventing rainwater from entering the conduit 4 during outdoor use. Preferably, the conduit 4 is filled with a sealing filler 5. The sealing filler 5 is a sealing foaming agent. By adding the sealing filler 5 to the conduit 4, the signal line can be positioned under the action of the sealing filler 5, and the sealing effect can be further improved.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic float level gauge, comprising a measuring tube (3), wherein a measuring circuit (14) is provided inside the measuring tube (3), a float (2) is slidably connected to the outside of the measuring tube (3), and a magnet (13) is fixedly connected inside the float (2), characterized in that: One end of the measuring tube (3) is fixedly connected to an end cap (1), and the other end of the measuring tube (3) is connected to a conduit (4). The adjacent ends of the measuring tube (3) and the conduit (4) are respectively fixedly connected to a first connector (9) and a second connector (6). The first connector (9) and the second connector (6) are fixedly connected by screws (10). A sealing plug (11) is clamped and fixed between the first connector (9) and the second connector (6). The signal line of the measuring circuit (14) passes through the sealing plug (11) through the conduit hole (12).

2. The magnetic levitation ball level gauge according to claim 1, characterized in that: The end cap (1), measuring tube (3) and first connector (9) are all made of plastic. The end cap (1) and first connector (9) are heat-fused to the measuring tube (3).

3. A magnetic levitated ball liquid level meter according to claim 1, characterized in that: The second connector (6) has a limiting hole (7) on the side near the first connector (9), and the first connector (9) is fixedly connected to a limiting post (8) at the position corresponding to the limiting hole (7).

4. The magnetic levitation ball level gauge according to claim 1, characterized in that: The inner diameter of the float (2) is smaller than the diameter of the end cap (1).

5. A magnetic levitation ball level gauge according to claim 1, characterized in that: The conduit (4) has a curved section with an acute angle.

6. A magnetic levitation ball level gauge according to claim 1, characterized in that: The conduit (4) is filled with sealing filler (5).

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