High-sensitivity liquid level detection device

Abstract

The utility model relates to the technical field of liquid level detection, in particular to a high-sensitivity liquid level detection device which comprises a tank body and a measuring cylinder, a sliding groove is formed in the inner wall of the tank body, a limiting block is movably connected in the sliding groove, the surface of the limiting block is fixedly connected with a buoy, a stand column is fixedly connected in the measuring cylinder, and the stand column is fixedly connected with the measuring cylinder. A roller is movably connected to the interior of the stand column, a connecting rod is movably connected to the roller through a roller shaft fixed to the interior of the roller, a sliding block is fixedly connected to the surface of the connecting rod, a spring is fixedly connected to the interior of the sliding block, a clamping plate is fixedly connected to one end of the spring, and a pull rod is fixedly connected to the top of the clamping plate. The liquid level detection device is provided with the limiting block and the rolling wheel, the buoy is prevented from deviating, the sliding block is prevented from shaking when moving up and down, the influence on the liquid level detection result is avoided, the spring, the clamping plate and the pull rod are arranged, the liquid level detection device can be zeroed according to the size and the requirement of a tank body, and the applicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid level detection, and particularly relates to a high-sensitivity liquid level detection device. Background Technique

[0002] Liquid level detection devices are widely used in various devices that can store water or oil in daily life, such as common water dispensers, plant water tanks, infusion devices for medical use, water tower pumping devices, car water tanks, or oil-water storage tanks and oil tanks in production machinery. The liquid level detection device detects the liquid inventory through the liquid level height to intuitively remind the user of the remaining liquid inventory in the storage tank.

[0003] In the existing float-type liquid level detection device, the float and the indicating block are not limited, and the float and the indicating block are prone to shift, resulting in errors in liquid level detection and incorrect detection results. Moreover, the existing float-type liquid level detection device cannot adjust the connecting rope and is difficult to zero according to needs, with poor applicability. Therefore, we propose a high-sensitivity liquid level detection device. Content of the Utility Model

[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a high-sensitivity liquid level detection device to solve the problems in the above background technique that the float and the indicating block of the existing float-type liquid level detection device are not limited, the float and the indicating block are prone to shift, resulting in errors in liquid level detection and incorrect detection results, and the existing float-type liquid level detection device cannot adjust the connecting rope and is difficult to zero according to needs, with poor applicability.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A high-sensitivity liquid level detection device includes a tank body and a measuring cylinder. A pulley one is fixedly connected to the top of the tank body. A chute is opened on the inner wall of the tank body. A limiting block is movably connected in the chute. A floating buoy is fixedly connected to the surface of the limiting block. A connecting rope is fixedly connected to the top of the floating buoy. A scale is arranged on the surface of the measuring cylinder. A pulley two is fixedly connected to the top of the measuring cylinder. A column is fixedly connected inside the measuring cylinder. A roller is movably connected inside the column. The roller is movably connected to a connecting rod through a roller shaft fixed inside it. A slider is fixedly connected to the surface of the connecting rod. An indicating convex block is fixedly connected to the surface of the slider. A spring is fixedly connected inside the slider. One end of the spring is fixedly connected to a clamping plate. A pull rod is fixedly connected to the top of the clamping plate.

[0006] Preferably, the cross-section of the limiting block is T-shaped, the shape of the chute is the same as that of the limiting block, the limiting block is slidably connected in the chute, and both the limiting block and the floating buoy are hollow.

[0007] Preferably, one end of the connecting rope is fixedly connected to the top of the buoy, and the other end of the connecting rope passes through the slider, and the connecting rope connects the buoy and the slider through the pulley one and the pulley two.

[0008] Preferably, concave grooves are provided on both sides of the column, a circular groove is provided on the surface of the connecting rod, a roller shaft is fixedly connected to the inside of the roller, the roller shaft is movably connected in the circular groove, and the roller and the connecting rod are movably connected in the concave groove.

[0009] Preferably, the measuring cylinder is made of a transparent acrylic plate.

[0010] Preferably, a cavity is opened inside the slider, one end of the spring is fixedly connected to the surface of the cavity, the other end of the spring is fixedly connected to the surface of the clamping plate, the surface of the clamping plate in contact with the connecting rope is provided with a rubber anti-slip layer, and the pull rod is L-shaped.

[0011] Preferably, the spring, the clamping plate and the pull rod constitute a set of adjustment components, and two sets of adjustment components are symmetrically arranged about the slider.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This high-sensitivity liquid level detection device is equipped with a limit block and a roller. The buoy is relatively fixed inside the tank body through the limit block. When the buoy moves with the change of liquid level, the limit block limits its horizontal movement to prevent the buoy from shifting. The buoy is connected to the slider through a connecting rope, and the slider moves in the column through the roller to prevent the slider from shaking when moving up and down, thereby avoiding affecting the result of liquid level detection.

[0014] 2. This highly sensitive liquid level detection device is provided with a spring, a clamping plate and a pull rod. The connecting rope passes through the slider. The springs on both sides squeeze the two sets of clamping plates to tighten the connecting rope, thereby fixing the position of the slider on the connecting rope. The pull rod is pushed to both sides to make the clamping plate leave the surface of the connecting rope. At this time, the position of the slider on the connecting rope can be adjusted, and the liquid level detection device can be zeroed according to the size and needs of the tank body. It has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a front cross-sectional view of a local structure of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the measuring cylinder and the column of the utility model;

[0018] Figure 4 It is a top view schematic diagram of the structure of the upright column and the slider of the present utility model;

[0019] Figure 5 It is an exploded cross-sectional view of the structure of the slider of the present utility model.

[0020] In the figure: 1. Tank body; 2. Pulley 1; 3. Limit block; 4. Floating buoy; 5. Connecting rope; 6. Measuring cylinder; 7. Scale; 8. Pulley 2; 9. Upright column; 10. Slider; 11. Connecting rod; 12. Roller; 13. Indicating convex block; 14. Spring; 15. Clamping plate; 16. Pull rod. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present utility model:

[0023] A high-sensitivity liquid level detection device comprises a tank body 1 and a measuring cylinder 6, wherein a pulley 2 is fixedly connected to the top of the tank body 1, a chute is provided on the inner wall of the tank body 1, a limit block 3 is movably connected in the chute, a buoy 4 is fixedly connected to the surface of the limit block 3, a connecting rope 5 is fixedly connected to the top of the buoy 4, a scale 7 is arranged on the surface of the measuring cylinder 6, a pulley 8 is fixedly connected to the top of the measuring cylinder 6, a column 9 is fixedly connected to the inside of the measuring cylinder 6, a roller 12 is movably connected to the inside of the column 9, a connecting rod 11 is movably connected to the roller shaft fixed inside the roller 12, a slider 10 is fixedly connected to the surface of the connecting rod 11, an indicating protrusion 13 is fixedly connected to the surface of the slider 10, a spring 14 is fixedly connected to the inside of the slider 10, a clamping plate 15 is fixedly connected to one end of the spring 14, a pull rod 16 is fixedly connected to the top of the clamping plate 15, and the limit block 3 and The roller 12 and the buoy 4 are relatively fixed inside the tank body 1 through the limit block 3. When the buoy 4 moves with the change of the liquid level, the limit block 3 limits its horizontal movement to prevent the buoy 4 from shifting. The buoy 4 is connected to the slider 10 through the connecting rope 5. The slider 10 moves in the column 9 through the roller 12 to prevent the slider 10 from shaking when moving up and down to avoid affecting the result of the liquid level detection. A spring 14, a clamping plate 15 and a pull rod 16 are provided. The connecting rope 5 passes through the slider 10. The connecting rope 5 is pressed tightly by the two sets of clamping plates 15 respectively squeezed by the springs 14 on both sides, thereby fixing the position of the slider 10 on the connecting rope 5. The pull rod 16 is pushed to both sides to make the clamping plate 15 leave the surface of the connecting rope 5. At this time, the position of the slider 10 on the connecting rope 5 can be adjusted, and the liquid level detection device can be zeroed according to the size and needs of the tank body 1, and it has strong applicability.

[0024] Furthermore, the cross-section of the limit block 3 is T-shaped, the shape of the slide groove is consistent with the limit block 3, the limit block 3 is slidably connected in the slide groove, and the limit block 3 and the buoy 4 are both hollow, so that the limit block 3 and the buoy 4 can always float above the liquid surface.

[0025] Furthermore, one end of the connecting rope 5 is fixedly connected to the top of the buoy 4, and the other end of the connecting rope 5 passes through the slider 10. The connecting rope 5 connects the buoy 4 and the slider 10 through pulley 1 2 and pulley 2 8. After the buoy 4 moves with the liquid level, it drives the slider 10 to move through two sets of pulleys.

[0026] Furthermore, concave grooves are provided on both sides of the column 9, a circular groove is provided on the surface of the connecting rod 11, a roller shaft is fixedly connected to the inside of the roller 12, and the roller shaft is movably connected in the circular groove. The roller 12 and the connecting rod 11 are movably connected in the concave groove, and the slider 10 moves in the column 9 through the roller 12 to prevent the slider 10 from shaking when moving up and down.

[0027] Furthermore, the measuring cylinder 6 is made of a transparent acrylic plate, and the indicating protrusion 13 cooperates with the scale 7 to intuitively indicate the current liquid level.

[0028] Furthermore, a cavity is formed inside the slider 10. One end of the spring 14 is fixedly connected to the surface of the cavity, and the other end of the spring 14 is fixedly connected to the surface of the clamping plate 15. A rubber anti-slip layer is provided on the surface of the clamping plate 15 that contacts the connecting rope 5. The pull rod 16 is in an L shape. By squeezing the two groups of clamping plates 15 through the springs 14 on both sides respectively, the connecting rope 5 is pressed tightly, thereby fixing the position of the slider 10 on the connecting rope 5. When the pull rod 16 is toggled to both sides to make the clamping plate 15 leave the surface of the connecting rope 5, the position of the slider 10 on the connecting rope 5 can be adjusted at this time.

[0029] Furthermore, the spring 14, the clamping plate 15 and the pull rod 16 constitute a set of adjusting components. Two sets of adjusting components are symmetrically arranged with respect to the slider 10. The position of the slider 10 on the connecting rope 5 is fixed by clamping the connecting rope 5 through the two sets of adjusting components.

[0030] Working principle: When the liquid in the tank body 1 changes, the liquid level height changes. At this time, the buoy 4 moves according to the change of the liquid level height, drives the slider 10 to move through the two sets of pulleys. The limit block 3 restricts its movement in the horizontal direction to prevent the buoy 4 from deviating. The slider 10 moves in the column 9 through the rollers 12 to prevent the slider 10 from shaking when moving up and down, avoiding affecting the result of the liquid level detection. When the liquid level detection device needs to be zeroed, the slider 10 is taken out from the scale 7 and the column 9, and the pull rod 16 is toggled to both sides to make the clamping plate 15 leave the surface of the connecting rope 5. At this time, the position of the slider 10 on the connecting rope 5 can be adjusted, and the liquid level detection device can be zeroed according to the size of the tank body 1 and the need, with strong applicability.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A highly sensitive liquid level detection device, comprising a tank body (1) and a measuring cylinder (6), characterized in that: The top of the tank body (1) is fixedly connected to a pulley 1 (2), the inner wall of the tank body (1) is provided with a slide groove, a limit block (3) is movably connected in the slide groove, a buoy (4) is fixedly connected to the surface of the limit block (3), a connecting rope (5) is fixedly connected to the top of the buoy (4), a scale (7) is provided on the surface of the measuring cylinder (6), a pulley 2 (8) is fixedly connected to the top of the measuring cylinder (6), a column (9) is fixedly connected to the inside of the measuring cylinder (6), and the column (9) ) is movably connected to a roller (12) inside, the roller (12) is movably connected to a connecting rod (11) through a roller shaft fixed inside, the surface of the connecting rod (11) is fixedly connected to a slider (10), the surface of the slider (10) is fixedly connected to an indicating protrusion (13), the inside of the slider (10) is fixedly connected to a spring (14), one end of the spring (14) is fixedly connected to a clamping plate (15), and the top of the clamping plate (15) is fixedly connected to a pull rod (16).

2. A high-sensitivity liquid level detection device according to claim 1, characterized in that: The cross section of the limit block (3) is T-shaped, the shape of the slide groove is consistent with that of the limit block (3), the limit block (3) is slidably connected in the slide groove, and the limit block (3) and the buoy (4) are both hollow.

3. A high-sensitivity liquid level detection device according to claim 1, characterized in that: One end of the connecting rope (5) is fixedly connected to the top of the buoy (4), and the other end of the connecting rope (5) passes through the slider (10). The connecting rope (5) connects the buoy (4) and the slider (10) through the pulley one (2) and the pulley two (8).

4. A high-sensitivity liquid level detection device according to claim 1, characterized in that: Concave grooves are provided on both sides of the column (9), a circular groove is provided on the surface of the connecting rod (11), a roller shaft is fixedly connected inside the roller (12), the roller shaft is movably connected in the circular groove, and the roller (12) and the connecting rod (11) are movably connected in the concave groove.

5. A high-sensitivity liquid level detection device according to claim 1, characterized in that: The measuring cylinder (6) is made of a transparent acrylic plate.

6. A high-sensitivity liquid level detection device according to claim 1, characterized in that: A cavity is provided inside the slider (10), one end of the spring (14) is fixedly connected to the surface of the cavity, the other end of the spring (14) is fixedly connected to the surface of the clamping plate (15), a rubber anti-slip layer is provided on the surface of the clamping plate (15) in contact with the connecting rope (5), and the pull rod (16) is L-shaped.

7. A high-sensitivity liquid level detection device according to claim 1, characterized in that: The spring (14), the clamping plate (15) and the pull rod (16) form a set of adjustment components, and two sets of adjustment components are symmetrically arranged with respect to the slider (10).

Images