Floating ball liquid level meter with stable measurement

Abstract

The utility model belongs to the technical field of floating ball liquid level meters, and particularly relates to a floating ball liquid level meter stable in measurement, which comprises a connecting flange and a protective shell, a measuring rod is arranged on the connecting flange, a limiting plate and a floating ball are mounted on the measuring rod, and a conversion assembly is mounted at the top of the measuring rod. A shell is installed at the top of the conversion assembly, a connecting port is formed in the shell, through cooperation of a floating ball and a measuring rod, when the liquid level changes, a converter converts a moving signal of the floating ball into an electric signal, a controller controls work of a motor, and the motor drives a threaded rod to rotate when rotating; when the threaded rod rotates, the upper cleaning plate and the lower cleaning plate are driven to ascend and descend, and attachments on the measuring rod can be cleaned in the ascending and descending process of the upper cleaning plate and the lower cleaning plate, so that the attachments on the measuring rod can be prevented from influencing the movement fluency of the floating ball, and the measurement accuracy is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of float liquid level gauges, in particular to a float liquid level gauge with stable measurement. Background Art

[0002] The float level meter uses a magnetic float as a measuring element. Through magnetic coupling, the resistance in the sensor changes linearly. The intelligent converter converts the resistance change into a 4-20mA standard current signal. The percentage of the liquid level, 4-20mA current and the liquid level value can be displayed on site. The remote transmission to the control room can realize automatic detection, control and recording of the liquid level. The instrument is suitable for sewage treatment in the petroleum, chemical, electric power, light industry and pharmaceutical industries, and for the measurement of the liquid level of various mediums in normal pressure and pressure vessels. It is especially ideal for the measurement of the liquid level of underground storage tanks and storage tanks.

[0003] In the prior art, when the ball float level gauge is in water for a long time, some sludge will adhere to the surface of the measuring rod, which will cause the smoothness of the ball float to decrease, thereby causing the measurement accuracy of the ball float level gauge to decrease. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the existing floating ball liquid level meter with stable measurement, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a float level gauge with stable measurement. Through the cooperation between the float and the measuring rod, when the liquid level changes, the converter converts the movement signal of the float into an electrical signal, and controls the operation of the motor through the controller. When the motor rotates, it drives the threaded rod to rotate. When the threaded rod rotates, it drives the upper cleaning plate and the lower cleaning plate to rise and fall. During the process of lifting and lowering the upper cleaning plate and the lower cleaning plate, the attachments on the measuring rod can be cleaned, thereby preventing the attachments on the measuring rod from affecting the smoothness of the movement of the float, thereby affecting the accuracy of the measurement.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A floating ball liquid level gauge with stable measurement, comprising a connecting flange and a protective housing;

[0009] A measuring rod is arranged on the connecting flange, a limit plate and a float are installed on the measuring rod, a conversion assembly is installed on the top of the measuring rod, a shell is installed on the top of the conversion assembly, a connecting port is installed on the shell, motors are arranged on both sides of the top of the connecting flange, a threaded rod is installed at the bottom of the motor, and an upper cleaning plate and a lower cleaning plate are installed on the top and bottom of the threaded rod.

[0010] As a preferred solution of a stable float level gauge described in the utility model, fixed blocks are arranged on both sides of the top of the protective shell, a sliding groove is opened on the inner side of the protective shell, and a protective rod is arranged on the outer side wall of the protective shell.

[0011] As a preferred solution of the floating ball liquid level gauge with stable measurement described in the utility model, wherein: the fixing block is fixedly connected to the bottom of the connecting flange by screws.

[0012] As a preferred solution of the floating ball liquid level gauge with stable measurement described in the utility model, the inner wall of the sliding groove is slidably connected to both sides of the upper cleaning plate and the lower cleaning plate.

[0013] As a preferred solution of the floating ball liquid level meter with stable measurement described in the utility model, wherein: the protective rods are multiple and evenly distributed outside the two sides of the protective shell.

[0014] As a preferred solution of a stable float level gauge described in the utility model, the threaded rod on one side is screwed to the upper cleaning plate, and its bottom is rotatably connected to the lower cleaning plate, and the upper part of the threaded rod on the other side is rotatably connected to the upper cleaning plate, and its bottom is screwed to the lower cleaning plate.

[0015] As a preferred solution of the floating ball liquid level gauge with stable measurement described in the utility model, the middle of the upper cleaning plate and the lower cleaning plate is slidably connected with the measuring rod.

[0016] As a preferred solution of the floating ball liquid level meter with stable measurement described in the utility model, the conversion component includes a converter and a controller, the measuring rod is connected to the converter, the converter is connected to the controller, and the controller is connected to the motor.

[0017] As a preferred solution of a float level gauge with stable measurement described in the utility model, wherein: the inner sides of the upper cleaning plate and the lower cleaning plate are both provided with rotating rings, a cleaning block is installed on the side of the rotating ring facing the float, a sliding block is provided on the inner wall of the rotating ring, and the sliding block is slidably connected to the threaded groove opened on the measuring rod.

[0018] Compared with the prior art, the utility model has the following beneficial effects: through the cooperation between the float and the measuring rod, when the liquid level changes, the converter converts the movement signal of the float into an electrical signal, and controls the operation of the motor through the controller. When the motor rotates, it drives the threaded rod to rotate, and when the threaded rod rotates, it drives the upper cleaning plate and the lower cleaning plate to rise and fall. During the process of the upper cleaning plate and the lower cleaning plate rising and falling, the attachments on the measuring rod can be cleaned, thereby preventing the attachments on the measuring rod from affecting the smoothness of the movement of the float, thereby affecting the accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the measuring rod of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the rotating ring of the utility model;

[0023] Figure 4 It is a three-dimensional schematic diagram of the protective shell of the utility model.

[0024] In the figure; 100 connecting flange, 110 measuring rod, 111 limit plate, 112 float, 120 conversion assembly, 130 housing, 140 connecting port, 150 motor, 160 threaded rod, 170 upper cleaning plate, 171 rotating ring, 172 cleaning block, 173 slider, 180 lower cleaning plate, 200 protective housing, 210 sliding groove, 220 fixed block, 230 protective rod. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] The utility model provides the following technical solutions: a floating ball liquid level gauge with stable measurement. During use, through the cooperation between the floating ball and the measuring rod, when the liquid level changes, the converter converts the movement signal of the floating ball into an electrical signal, and controls the operation of the motor through the controller. When the motor rotates, it drives the threaded rod to rotate, and when the threaded rod rotates, it drives the upper cleaning plate and the lower cleaning plate to rise and fall. During the process of the upper cleaning plate and the lower cleaning plate rising and falling, the attachments on the measuring rod can be cleaned, so as to prevent the attachments on the measuring rod from affecting the smoothness of the movement of the floating ball, thereby affecting the accuracy of the measurement;

[0030] Figure 1-Figure 3 The structure diagram of the first embodiment of the utility model is a floating ball liquid level meter with stable measurement. Figure 1-Figure 3 , a floating ball liquid level gauge with stable measurement in this embodiment, the main body of which includes a connecting flange 100 and a protective housing 200;

[0031] A measuring rod 110 is arranged on the connecting flange 100, and a limit plate 111 and a floating ball 112 are installed on the measuring rod 110. A conversion assembly 120 is installed on the top of the measuring rod 110, and a shell 130 is installed on the top of the conversion assembly 120. A connecting port 140 is installed on the shell 130. Motors 150 are arranged on both sides of the top of the connecting flange 100, and a threaded rod 160 is installed at the bottom of the motor 150. An upper cleaning plate 170 and a lower cleaning plate 180 are installed on the top and bottom of the threaded rod 160. Specifically, the threaded rod 160 on one side is screwed to the upper cleaning plate 170, and its bottom is rotatably connected to the lower cleaning plate 180, and the upper part of the threaded rod 160 on the other side is rotatably connected to the upper cleaning plate 170, and its bottom is screwed to the lower cleaning plate 180. The middle of the upper cleaning plate 170 and the lower cleaning plate 180 are slidably connected to the measuring rod 110. The conversion assembly 120 includes a converter and a controller. The measuring rod 110 is connected to the converter The converter is connected to the controller, the controller is connected to the motor 150, the connecting flange 100 is used to connect the float 112 liquid level meter to the liquid storage device, the measuring rod 110 is used to cooperate with the float 112 to measure the liquid level height, the limit plate 111 is used to limit the position of the float 112, the conversion component 120 is used to convert the resistance change of the converter into a 4-20mA standard current signal, which can display the percentage of the liquid level, 4-20mA current and liquid level value on site, and the remote transmission supply control room can realize automatic detection, control and recording of the liquid level, the housing 130 is used to carry the connection port 140, and the connection port 140 is used to connect to an external device through a wire, the motor 150 is used to drive the threaded rod 160 to rotate, the threaded rod 160 is used to drive the upper cleaning plate 170 and the lower cleaning plate 180 to clean, and the upper cleaning plate 170 and the lower cleaning plate 180 are used to clean the attachments on the measuring rod 110;

[0032] Fixed blocks 220 are arranged on both sides of the top of the protective shell 200, a sliding groove 210 is opened on the inner side of the protective shell 200, and a protective rod 230 is arranged on the outer wall of the protective shell 200. The upper cleaning plate 170 and the lower cleaning plate 180 are slidably connected with the measuring rod 110 in the middle. The conversion assembly 120 includes a converter and a controller. The measuring rod 110 is connected with the converter, the converter is connected with the controller, and the controller is connected with the motor 150. The protective shell 200 is used to protect the upper cleaning plate 170 and the lower cleaning plate 180 to prevent the upper cleaning plate 170 and the lower cleaning plate 180 from being damaged by external force impact, so that the measuring rod 110 cannot be cleaned. The sliding groove 210 is used to carry the upper cleaning plate 170 and the lower cleaning plate 180 to slide. The fixed block 220 is used to cooperate with the screw to be fixedly connected with the connecting flange 100. The protective rod 230 is used to protect the float 112 liquid level gauge to prevent it from being impacted by external force.

[0033] A rotating ring 171 is provided inside the upper cleaning plate 170 and the lower cleaning plate 180. A cleaning block 172 is installed on the side of the rotating ring 171 facing the floating ball 112. A sliding block 113 is provided on the inner wall of the rotating ring 112. The sliding block 113 is slidably connected with the thread groove 113 provided on the measuring rod 110. The rotating ring 171 is used to drive the cleaning block 172 to rotate when the upper cleaning plate 170 and the lower cleaning plate 180 move. The principle is similar to that of a manual flying saucer, so as to further clean the attachments accumulated on the measuring rod 110.

[0034] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A floating ball level gauge with stable measurement, characterized in that: It comprises a connecting flange (100) and a protective housing (200); A measuring rod (110) is arranged on the connecting flange (100), a limit plate (111) and a floating ball (112) are installed on the measuring rod (110), a conversion assembly (120) is installed on the top of the measuring rod (110), a housing (130) is installed on the top of the conversion assembly (120), a connecting port (140) is installed on the housing (130), motors (150) are arranged on both sides of the top of the connecting flange (100), a threaded rod (160) is installed on the bottom of the motor (150), and an upper cleaning plate (170) and a lower cleaning plate (180) are installed on the top and bottom of the threaded rod (160).

2. A floating ball level gauge with stable measurement according to claim 1, characterized in that: Fixed blocks (220) are arranged on both sides of the top of the protective shell (200), a sliding groove (210) is opened on the inner side of the protective shell (200), and a protective rod (230) is arranged on the outer side wall of the protective shell (200).

3. A floating ball level gauge with stable measurement according to claim 2, characterized in that: The fixing block (220) is fixedly connected to the bottom of the connecting flange (100) by means of screws.

4. A floating ball level gauge with stable measurement according to claim 2, characterized in that: The inner wall of the sliding groove (210) is slidably connected to both sides of the upper cleaning plate (170) and the lower cleaning plate (180).

5. The floating ball level gauge with stable measurement according to claim 2, characterized in that: The protective rods (230) are multiple and evenly distributed outside the two sides of the protective housing (200).

6. The floating ball level gauge with stable measurement according to claim 1, characterized in that: The threaded rod (160) on one side is screwed to the upper cleaning plate (170), and its bottom is rotatably connected to the lower cleaning plate (180); the upper part of the threaded rod (160) on the other side is rotatably connected to the upper cleaning plate (170), and its bottom is screwed to the lower cleaning plate (180).

7. The floating ball level gauge with stable measurement according to claim 1, characterized in that: The middle of the upper cleaning plate (170) and the lower cleaning plate (180) is slidably connected to the measuring rod (110).

8. The floating ball level gauge with stable measurement according to claim 1, characterized in that: The conversion assembly (120) comprises a converter and a controller, the measuring rod (110) is connected to the converter, the converter is connected to the controller, and the controller is connected to the motor (150).

9. The floating ball level gauge with stable measurement according to claim 1, characterized in that: A rotating ring (171) is disposed inside the upper cleaning plate (170) and the lower cleaning plate (180). A cleaning block (172) is installed on the side of the rotating ring (171) facing the floating ball (112). A sliding block (173) is disposed on the inner wall of the rotating ring (171). The sliding block (173) is slidably connected to a thread groove (113) provided on the measuring rod (110).

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