Automatic telescopic floating ball liquid level meter

Abstract

The utility model relates to the technical field of liquid level meters, and discloses an automatic telescopic floating ball liquid level meter which comprises a rotary encoder, a floating ball and a sleeve, the floating ball is arranged in the sleeve, an opening is formed in the sleeve, liquid flows into or out of the sleeve through the opening, the rotary encoder is located above the floating ball, and the floating ball is connected with the rotary encoder through a connecting line. The rotary encoder is connected with a clockwork spring for driving the rotary encoder to rotate and loosen; the rotary encoder is used for generating a corresponding electric signal according to the position change of the floating ball, the electric signal can be used for calculating the height of the liquid level and can be digitally displayed or further transmitted to a control system, and the floating ball and the connecting wire are arranged in the sleeve, so that the floating ball is prevented from shaking everywhere in the measurement process to influence the metering accuracy; and a stable up-and-down action space is provided for the floating ball under the action of the sleeve, so that the problem of inaccurate measurement of a high-temperature viscous medium in the liquid level meter is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid level meter, more particularly to automatic telescopic float ball liquid level meter. BACKGROUND

[0002] In the storage tank liquid level measurement process, commonly used liquid level meter has ultrasonic liquid level meter, radar liquid level meter, magnetic flap liquid level meter, magnetic float liquid level meter etc., but in the special medium such as high temperature viscous liquid tank truck filling process measurement liquid level does not have suitable liquid level meter, and its main reason is that liquid level meter can only be installed on crane pipe, and crane pipe will have interference to the measurement signal of ultrasonic liquid level meter and radar liquid level meter, and magnetic flap liquid level meter and magnetic float liquid level meter are not applicable to viscous medium measurement, in the actual loading process, whether it is full is often judged by flow and loading time, and the liquid level of storage tank or tank truck can not be conveniently and accurately measured. UTILITY MODEL CONTENTS

[0003] The utility model discloses an automatic telescopic float ball liquid level meter, which aims to solve the problem of inaccurate measurement of high-temperature viscous medium in the prior art.

[0004] The utility model discloses a automatic telescopic float ball liquid level meter, including rotary encoder and float ball and sleeve, the float ball is located at the inside of sleeve, be opened with the opening on the sleeve, liquid flows into or flows out sleeve through the opening, the rotary encoder is located at the top of float ball, the float ball is connected with rotary encoder through connecting line, be connected with the clock spring of driving rotary encoder rotation relaxation on the rotary encoder.

[0005] Further, the sleeve is arranged longitudinally, and the rotary encoder and the sleeve are perpendicular to each other.

[0006] Further, the rotary encoder is sleeved with a winding reel, one end of the connecting line is wound on the winding reel, and the other end of the connecting line is connected with the float ball.

[0007] Further, the winding reel and the rotary encoder are perpendicular to each other.

[0008] Further, the winding reel and the float ball are arranged longitudinally and spaced apart.

[0009] Further, the sleeve has a floating cavity for the up-and-down floating of the float ball, the float ball is located in the floating cavity, the sleeve is provided with a bottom opening and a side opening, the bottom opening is located at the bottom of the sleeve, the side opening is located on the outer side of the sleeve, the bottom opening and the side opening are communicated to form the opening, and the liquid flows into or flows out the floating cavity through the bottom opening and the side opening.

[0010] Further, a sliding gap is formed between the outer periphery of the floating ball and the inner side wall of the floating cavity.

[0011] Further, a connecting position is arranged on the floating ball, and the other end of the connecting wire is fixed on the connecting position.

[0012] Further, one end of the clockwork spring is wound and connected to the outer side of the rotary encoder, and the other end of the clockwork spring is fixed on the fixed position.

[0013] Further, the clockwork spring and the winding disc are horizontally and side by side arranged.

[0014] Compared with the prior art, the automatic telescopic floating ball liquid level meter provided by the utility model generates corresponding electric signals according to the position change of the floating ball by the rotary encoder, the electric signals can be used to calculate the height of the liquid level, and the floating ball and the connecting wire are arranged in the interior of the sleeve, so that the floating ball is prevented from shaking everywhere in the measuring process and influencing the accuracy of measurement, the floating ball is provided with a stable up-down action space by the sleeve, and the problem that the liquid level meter is inaccurate in measuring high-temperature viscous medium is solved; the automatic telescopic floating ball liquid level meter combines the sensor and the mechanical device, and realizes high-precision and high-reliability measurement of the liquid level by accurate measurement and control technology. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the three-dimensional schematic view of the automatic telescopic floating ball liquid level meter provided by the utility model.

[0016] In the drawing: rotary encoder 10, floating ball 20, sleeve 30, connecting wire 40, clockwork spring 50, winding disc 11, connecting position 21, floating cavity 31, bottom opening 32, side opening 33. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and understandable, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0018] The implementation of the utility model is described in detail below by combining with specific examples.

[0019] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the utility model, it is understood that if the orientations or positional relationships indicated by terms such as 'upper', 'lower', 'left', 'right' are based on the orientations or positional relationships shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as limiting the utility model, for ordinary skilled persons in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] Referring to Figure 1 The preferred embodiment provided by the utility model is shown in the drawings.

[0021] The automatic telescopic floating ball liquid level meter comprises a rotary encoder 10, a floating ball 20 and a sleeve 30, the floating ball 20 is arranged in the interior of the sleeve 30, an opening is formed in the sleeve 30, liquid flows into or out of the sleeve 30 through the opening, the rotary encoder 10 is located above the floating ball 20, the floating ball 20 is connected with the rotary encoder 10 through a connecting line 40, and a clock spring 50 for driving the rotary encoder 10 to rotate and relax is connected to the rotary encoder 10.

[0022] The automatic telescopic floating ball liquid level meter provided above utilizes the rotary encoder 10 to generate corresponding electrical signals according to the position change of the floating ball 20, the electrical signals can be used to calculate the height of the liquid level, and the floating ball 20 and the connecting line 40 can be placed in the interior of the sleeve 30 to prevent the floating ball 20 from shaking around during the measurement process and affecting the accuracy of measurement, the sleeve 30 provides a stable up-and-down movement space for the floating ball 20, and the problem that the liquid level meter does not accurately measure high-temperature viscous media is solved; the automatic telescopic floating ball 20 liquid level meter combines a sensor and a mechanical device, and through accurate measurement and control technology, high-precision and high-reliability measurement of the liquid level is realized.

[0023] The connecting line 40 can be a steel wire rope; the steel wire rope connects the floating ball 20 and the measuring device, i.e., the rotary encoder 10, when the liquid level changes, the floating ball 20 moves up and down accordingly, the steel wire rope drives the rotary encoder 10 to move accordingly, and the function is to connect the floating ball 20 and the rotary encoder 10 to the reel 11;

[0024] Clock spring 50: Clock spring 50 is used to provide continuous tension, always opposite to the tension of the float ball 20 downward, so that the float ball 20, the steel wire rope and the rotary encoder 10 can always maintain a certain tension state, so as to ensure that it can accurately reflect the liquid level when the liquid level changes, its role is to exert a certain tension on the rotary encoder 10, for the rotary encoder 10 to rotate and rotate to the home position;

[0025] Rotary encoder 10: the core component of detecting liquid level, the float ball 20 pulls the rotary encoder 10 through the steel wire rope, when the liquid level drops, the float ball 20 falls downward, pulling the rotary encoder 10 to rotate in one direction, the rotary encoder 10 sends a liquid level signal (pulse signal or 4-20ma current signal), when the liquid level rises, the float ball 20 rises, the rotary encoder 10 rotates in the other direction under the force of the clock spring 50 returning to the home position, until the float ball 20 rises to the top, the rotary encoder 10 returns to zero;

[0026] Float ball 20: the float ball 20 is the core component of the liquid level meter, usually made of materials with high density to ensure that it can float stably in the liquid, its role is to sense the height of the liquid level and drive the rotary encoder 10 to rotate through the steel wire rope, the weight and size of the float ball 20 are designed according to the density of the medium to be detected, the float ball 20 is designed to float on the liquid level and not sink to the bottom of the tank, and the weight is required to be greater than the force of the clock spring 50 pulling back, so that the rotary encoder 10 can be pulled to rotate.

[0027] In this embodiment, the sleeve 30 is arranged longitudinally, and the rotary encoder 10 and the sleeve 30 are perpendicular to each other. In this way, during the winding or unwinding process of the rotary encoder 10, the float ball 20 can move up and down along a straight line.

[0028] In this embodiment, the rotary encoder 10 is sleeved with a winding reel 11, one end of the connecting line 40 is wound on the winding reel 11, and the other end of the connecting line 40 is connected with the float ball 20.

[0029] Winding reel 11: the winding reel 11 is used to reduce the rotational resistance of the system and ensure that the float ball 20 moves along a straight line, it is usually installed on the container wall and connected with the rotary encoder 10 to ensure the stability and accuracy of the float ball 20.

[0030] In this embodiment, the winding reel 11 and the rotary encoder 10 are perpendicular to each other. In this way, during the winding or unwinding process of the rotary encoder 10, the float ball 20 can move up and down along a straight line, so as to ensure the stability and accuracy of the float ball 20.

[0031] In this embodiment, the winding reel 11 and the float ball 20 are arranged longitudinally and spaced apart. In this way, the stability and accuracy of the float ball 20 during the up and down movement can be increased.

[0032] In the embodiment, the sleeve 30 has a floating cavity 31 for the floating ball 20 to float up and down, the floating ball 20 is located in the floating cavity 31, the sleeve 30 is provided with a bottom opening 32 and a side opening 33, the bottom opening 32 is located at the bottom of the sleeve 30, the side opening 33 is located on the outer side of the sleeve 30, the bottom opening 32 and the side opening 33 are communicated to form an opening, and the liquid flows into or out of the floating cavity 31 through the bottom opening 32 and the side opening 33. In this way, the liquid can enter the inside of the sleeve 30 through the bottom opening 32 and the side opening 33, and when the floating ball 20 is located in the middle of the sleeve 30, the liquid inside the sleeve 30 and the liquid outside the sleeve 30 can be kept synchronized at all times for the liquid with high consistency, thereby improving the high-precision and high-reliability measurement of the liquid level.

[0033] In the embodiment, the floating ball 20 has a sliding gap between the outer periphery and the inner side wall of the floating cavity 31. In this way, the floating ball 20 can slide in the floating cavity 31, and the sliding gap can reduce the frictional resistance between the floating ball 20 and the floating cavity 31.

[0034] In the embodiment, the floating ball 20 is provided with a connecting position 21, the connecting position 21 is located on the top of the floating ball 20, and the other end of the connecting line 40 is fixed on the connecting position 21. In this way, the connecting line 40 can connect the floating ball 20 and the winding reel 11 through the connecting position 21.

[0035] In the embodiment, one end of the clock spring 50 is wound and connected to the outer side of the rotary encoder 10, and the other end of the clock spring 50 is fixed on the fixing position. In this way, the clock spring 50 can drive the rotary encoder 10 to rotate by means of the fixing position.

[0036] The clock spring 50 and the winding reel 11 are horizontally and side-by-side arranged.

[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self retracting float level gauge characterised in that, The utility model relates to a liquid level sensor, which comprises a rotary encoder and a floating ball and a sleeve, the floating ball is arranged in the interior of the sleeve, the sleeve is provided with an opening, liquid flows into or out of the sleeve through the opening, the rotary encoder is located above the floating ball, the floating ball is connected with the rotary encoder through a connecting line, a clock spring for driving the rotary encoder to rotate is connected to the rotary encoder. The sleeve is arranged longitudinally, and the rotary encoder is perpendicular to the sleeve. A winding reel is arranged in the rotary encoder, one end of the connecting line is wound on the winding reel, and the other end of the connecting line is connected to the floating ball. The sleeve has a floating cavity for the floating ball to float up and down, the floating ball is located in the floating cavity, the sleeve is provided with a bottom opening and a side opening, the bottom opening is located at the bottom of the sleeve, the side opening is located on the outer side of the sleeve, the bottom opening and the side opening are communicated to form the opening, and liquid flows into or out of the floating cavity through the bottom opening and the side opening. A sliding gap is formed between the outer periphery of the floating ball and the inner side wall of the floating cavity. One end of the clock spring is wound and connected to the outer side of the rotary encoder, and the other end of the clock spring is fixed on a fixed position. The clock spring and the winding reel are arranged horizontally side by side.

2. The automatic expanding float ball liquid level meter according to claim 1, characterized in that, The winding reel is perpendicular to the rotary encoder.

3. The self- retracting float level gauge as claimed in claim 2, wherein, The winding reel and the floating ball are arranged longitudinally and spaced apart.

4. The self- retracting float level gauge as claimed in claim 1, wherein, The floating ball is provided with a connecting position, the connecting position is located on the top of the floating ball, and the other end of the connecting line is fixed on the connecting position.

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