Mechanical floating ball liquid level meter

Abstract

The utility model relates to the technical field of floating ball liquid level meters, in particular to a mechanical floating ball liquid level meter which comprises a hexagonal plate, a shell is fixedly installed in the hexagonal plate, a fixing seat is fixedly installed at the bottom in the shell, a limiting groove is formed in the center of the fixing seat, and an oil seal plate is fixedly installed at the top of the fixing seat. The spiral square rod is driven to rotate through lifting of the first floating ball, the first magnet is synchronously driven to rotate, rotation of the second magnet and the pointer on the second magnet is achieved through magnetic force, liquid level indication is achieved, and compared with traditional mechanical connection, the liquid level indicating device has the advantages of being simple in structure, convenient to use and high in practicability. Magnetic transmission is adopted, the oil seal plate is arranged between the two magnets, oil leakage is avoided, the measuring range is conveniently adjusted according to the depth of the oil tank to be measured through the arrangement of the measuring range adjusting mechanism, the device is suitable for oil tanks with different depths, and the application range of the device is expanded.

Description

Technical Field

[0001] This utility model belongs to the technical field of float level gauges, specifically relating to a mechanical float level gauge. Background Technology

[0002] A float level gauge is a device used to measure the level of liquid. It senses changes in the liquid level through one or more floats. These gauges are commonly used in industrial and commercial applications, especially when monitoring the liquid level in storage tanks, containers, or pools is required. Mechanical float level gauges are one type, driven by a purely mechanical mechanism and can operate without an external power source. They are primarily used in flammable and explosive environments such as oil tanks and reservoirs.

[0003] Mechanical float level gauges typically rely on the displacement of a float as the liquid level rises and falls to drive a mechanical structure that transmits signals indicating changes in liquid level. The range of a float level gauge is closely related to the length of the guide rod that holds the float in place. However, existing guide rods have fixed lengths, resulting in a fixed range for the equipment. This makes it difficult to adjust the float's range according to actual usage requirements. Furthermore, the rotation of the pointer in existing mechanical float level gauges is connected to the float via a mechanical mechanism. As a result, during use, oil can seep into the gauge through the pointer's rotation hole, causing oil leakage and affecting the normal operation of the mechanical float level gauge. Utility Model Content

[0004] The purpose of this invention is to provide a mechanical float level gauge with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A mechanical float level gauge includes a hexagonal plate, inside which a housing is fixedly installed. A fixed base is fixedly installed at the bottom of the housing. A limiting groove is formed at the center of the fixed base, and an oil seal plate is fixedly installed at the top of the fixed base. A second magnet is rotatably connected to the top center of the oil seal plate. A pointer is fixedly connected to the outside of the second magnet. A first magnet is rotatably installed inside the limiting groove. A helical square rod is fixedly installed at the bottom of the first magnet. A base is rotatably connected to the bottom of the helical square rod. Two guide rods are symmetrically fixedly installed at the top of the base. A first float is slidably connected to both guide rods. Two range adjustment mechanisms are symmetrically arranged at the top of the first float.

[0007] Preferably, the tops of the two guide rods are fixedly connected to the bottom of the fixed base, a threaded cylinder is fixedly installed on the bottom of the hexagonal plate, and a transparent cover plate is fixedly installed on the top inside the outer shell.

[0008] Preferably, a limiting plate is fixedly installed on the top of the first float, and a limiting hole is provided on the limiting plate to cooperate with the outside of the spiral square rod. A through hole is provided in the center of the first float, and the spiral square rod passes through the through hole.

[0009] Preferably, the range adjustment mechanism includes a fixed block fixedly connected to the top of the first float, and a fixed frame fixedly connected to the side of the fixed block away from the spiral square rod by screws. The fixed frame is Z-shaped, and a lifting plate slides through the top of the fixed frame. Several insertion holes are evenly opened on the lifting plate.

[0010] Preferably, a stop block is fixedly installed on the top of the lifting plate, and a second float ball is fixedly installed on the bottom of the lifting plate.

[0011] Preferably, a fixing cylinder is fixedly installed on the vertical section of the fixing frame, and an insert rod slides through the inside of the fixing cylinder. One end of the insert rod is slidably inserted into the insertion hole, and a handle is fixedly installed on the other end of the insert rod. A baffle is fixedly installed in the middle of the insert rod, and a spring is sleeved on the outside of the insert rod. The spring is located between the inner wall of the fixing cylinder and the baffle.

[0012] The beneficial effects of this utility model are as follows: This utility model drives the rotation of the spiral square rod by the lifting and lowering of the first float, which in turn drives the rotation of the first magnet. The second magnet and the pointer on it are rotated by magnetic force, thus realizing liquid level indication. Compared with the traditional mechanical connection, magnetic transmission is used, and an oil seal plate is set between the two magnets to avoid oil leakage. Furthermore, the range adjustment mechanism makes it easy to adjust the range according to the depth of the oil tank to be measured, making it suitable for oil tanks of different depths and expanding the applicability of the equipment. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0014] Figure 2 This is a partial three-dimensional structural view of the present invention;

[0015] Figure 3 This is a partial sectional view of the structure of this utility model;

[0016] Figure 4 This is the utility model Figure 3 Enlarged view of region A in the middle;

[0017] Figure 5 This is a three-dimensional view of the range adjustment mechanism of this utility model.

[0018] In the diagram: 1. Hexagonal plate; 2. Transparent cover plate; 3. Outer shell; 4. Threaded cylinder; 5. Guide rod; 6. Helical square rod; 7. Range adjustment mechanism; 71. Insertion hole; 72. Lifting plate; 73. Fixed cylinder; 74. Fixed block; 75. Fixed frame; 76. Spring; 77. Insert rod; 78. Baffle; 79. No. 2 float; 8. No. 1 float; 9. Base; 10. Limiting plate; 11. Pointer; 12. Oil seal plate; 13. Fixed seat; 14. No. 1 magnet; 15. No. 2 magnet. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example

[0021] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A mechanical float level gauge includes a hexagonal plate 1, with a housing 3 fixedly installed inside the hexagonal plate 1. A fixed base 13 is fixedly installed at the bottom inside the housing 3. A limit groove is formed in the center of the fixed base 13, and an oil seal plate 12 is fixedly installed on the top of the fixed base 13. A second magnet 15 is rotatably connected to the top center of the oil seal plate 12. A pointer 11 is fixedly connected to the outside of the second magnet 15. A first magnet 14 is rotatably disposed inside the limit groove. A spiral square rod 6 is fixedly installed at the bottom of the first magnet 14. A base 9 is rotatably connected to the bottom of the spiral square rod 6. Two guide rods 5 are symmetrically fixedly installed on the top. A float 8 is slidably connected to the two guide rods 5. Two range adjustment mechanisms 7 are symmetrically arranged on the top of the float 8. The top of the two guide rods 5 is fixedly connected to the bottom of the fixed seat 13. A threaded cylinder 4 is fixedly installed on the bottom of the hexagonal plate 1. A transparent cover plate 2 is fixedly installed on the top of the inner shell 3. A limit plate 10 is fixedly installed on the top of the float 8. A limit hole that matches the outside of the spiral square rod 6 is opened on the limit plate 10. A through hole is opened in the center of the float 8, and the spiral square rod 6 passes through the through hole.

[0022] In use, the hexagonal plate 1 is used to fix the outer shell 3 and the threaded cylinder 4, the transparent cover plate 2 is used to observe the reading of the pointer 11, the oil seal plate 12 is used to ensure the sealing of the fixed seat 13, and the top of the oil seal plate 12 is marked with a scale, the threaded cylinder 4 is used to install the equipment onto the oil tank to be tested, and the range adjustment mechanism 7 is used to adjust the range of the equipment, so as to facilitate the adjustment of the range according to the actual use requirements.

[0023] Please see Figure 1 and Figure 5The range adjustment mechanism 7 includes a fixed block 74 fixedly connected to the top of the first float 8. A fixed frame 75 is fixedly connected to the side of the fixed block 74 away from the spiral square rod 6 by screws. The fixed frame 75 is Z-shaped. A lifting plate 72 slides through the top of the fixed frame 75. Several insertion holes 71 are evenly opened on the lifting plate 72. A stop block is fixedly installed on the top of the lifting plate 72, and a second float 79 is fixedly installed at the bottom of the lifting plate 72. A fixed cylinder 73 is fixedly installed on the vertical section of the fixed frame 75. An insertion rod 77 slides through the inside of the fixed cylinder 73. One end of the insertion rod 77 slides into the insertion hole 71, and a handle is fixedly installed on the other end of the insertion rod 77. A baffle 78 is fixedly installed in the middle of the insertion rod 77, and a spring 76 is sleeved on the outside of the insertion rod 77. The spring 76 is located between the inner wall of the fixed cylinder 73 and the baffle 78.

[0024] In use, when no range adjustment is required, float 79 is positioned above the bottom of float 8, and level measurement is performed using float 8. When range adjustment is required, pull the handle on the insertion rod 77, causing the insertion rod 77 and its baffle 78 to move away from the lifting plate 72, while simultaneously compressing the spring 76. This pulls the insertion rod 77 out of the insertion hole 71, loosening the connection to the lifting plate 72. The lifting plate 72 is then moved downwards, simultaneously causing float 79 to move downwards until it reaches the appropriate position. The insertion rod 77 is then released, and under the restoring force of the spring 76, the baffle 78 and its insertion rod 77 move towards the lifting plate 72 until the insertion rod 77 is inserted into the insertion hole 71, thus adjusting the height of float 79. At this point, float 79 is positioned below float 8, achieving range adjustment.

[0025] It should be noted that, when using this type of mechanical float level gauge, the required range is first determined based on the oil tank to be measured. At this point, the range adjustment mechanism 7 can be installed or not, depending on the needs. The range adjustment mechanism 7 is detachable, making it easy to choose whether to install it or not. After installing the range adjustment mechanism 7, the range of the equipment can be adjusted using the range adjustment mechanism 7, which is beneficial for measuring the liquid level of oil tanks at different depths. After the range adjustment mechanism 7 is adjusted to a suitable level, when the oil rises, the range adjustment mechanism 7 will drive the second float 79 to rise, which in turn drives the lifting plate 72 and the insertion rod 77 to rise, indirectly driving the first float 8 to rise. When the range adjustment mechanism 7 is not installed, it directly drives the first float 8 to rise. When the first float 8 rises, it simultaneously drives the limit plate 10 to rise, which in turn drives the spiral square rod 6 and the first magnet 14 on it to rotate. This, in turn, drives the second magnet 15 and the pointer 11 on it to rotate. The pointer 11 is used to indicate the oil level. Compared with the traditional transmission method, the pointer 11 is driven to rotate by magnetic force. In addition, an oil seal plate 12 is installed between the first magnet 14 and the second magnet 15, which achieves the sealing of the fixed seat 13 and avoids the problem of oil leakage between the transparent cover plate 2 and the oil seal plate 12, thus extending the service life of the equipment.

[0026] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A mechanical float level gauge, comprising a hexagonal plate (1), characterized in that: The hexagonal plate (1) has a shell (3) fixedly installed inside. A fixed seat (13) is fixedly installed at the bottom inside the shell (3). A limiting groove is opened in the center of the fixed seat (13). An oil seal plate (12) is fixedly installed on the top of the fixed seat (13). A second magnet (15) is rotatably connected to the top center of the oil seal plate (12). A pointer (11) is fixedly connected to the outside of the second magnet (15). A first magnet (14) is rotatably installed inside the limiting groove. A spiral square rod (6) is fixedly installed at the bottom of the first magnet (14). A base (9) is rotatably connected to the bottom of the spiral square rod (6). Two guide rods (5) are symmetrically fixedly installed on the top of the base (9). A first float (8) is slidably connected to the two guide rods (5). Two range adjustment mechanisms (7) are symmetrically arranged on the top of the first float (8).

2. The mechanical float level gauge according to claim 1, characterized in that: The tops of the two guide rods (5) are fixedly connected to the bottom of the fixed seat (13), the bottom of the hexagonal plate (1) is fixedly installed with a threaded cylinder (4), and the top of the inner shell (3) is fixedly installed with a transparent cover plate (2).

3. The mechanical float level gauge according to claim 1, characterized in that: The first float (8) is fixedly installed with a limiting plate (10) on its top. The limiting plate (10) has a limiting hole that matches the outside of the spiral square rod (6). The first float (8) has a through hole in its center, and the spiral square rod (6) passes through the through hole.

4. The mechanical float level gauge according to claim 1, characterized in that: The range adjustment mechanism (7) includes a fixed block (74) fixedly connected to the top of the first float (8). A fixed frame (75) is fixedly connected to the side of the fixed block (74) away from the spiral square rod (6) by screws. The fixed frame (75) is Z-shaped. A lifting plate (72) slides through the top of the fixed frame (75). Several insertion holes (71) are evenly opened on the lifting plate (72).

5. A mechanical float level gauge according to claim 4, characterized in that: A stop block is fixedly installed on the top of the lifting plate (72), and a second float (79) is fixedly installed on the bottom of the lifting plate (72).

6. A mechanical float level gauge according to claim 4, characterized in that: The vertical section of the fixed frame (75) is fixedly installed with a fixed cylinder (73). A plug rod (77) slides through the inside of the fixed cylinder (73). One end of the plug rod (77) is slidably inserted into the plug hole (71). A handle is fixedly installed at the other end of the plug rod (77). A baffle (78) is fixedly installed in the middle of the plug rod (77). A spring (76) is sleeved on the outside of the plug rod (77). The spring (76) is located between the inner wall of the fixed cylinder (73) and the baffle (78).

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