Float type liquid level meter with positioning function

Abstract

The utility model relates to the technical field of liquid level meters, and discloses a float-type liquid level meter with a positioning function, which comprises a meter head, a floating ball and a measuring rod, the meter head is arranged on a support disc, a guide rod and a line communication rod are arranged on the support disc, and the measuring rod is respectively inserted into assembly holes on the guide rod and the line communication rod; the supporting disc is movably mounted on the second mounting plate, the first mounting plate is vertically mounted on the second mounting plate, and the positioning plate is mounted on the first mounting plate; and a measuring rod penetrating through the guide rod and the line communication rod is inserted into an assembly hole in the positioning plate. According to the utility model, the measuring rod can be positioned and calibrated, so that the measuring rod is in a vertical state, and the floating ball is prevented from being clamped by a liquid container when the measuring rod is inserted into liquid to be measured; meanwhile, the accuracy of detection data is improved; the gauge outfit is arranged outside the axial position of the measuring rod, so that the gauge outfit can be installed and used in some places with relatively narrow spaces, and the practicability is improved.

Description

Technical Field

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

[0002] The float level gauge is a common liquid level measuring device, which is widely used in industrial production and laboratory environments. The general float level gauge mainly includes a measuring rod, a float, and a meter head connected to the measuring rod; using magnetic coupling technology, a magnetic sensor is set in the measuring rod, and a magnet is set in the float. When the float moves up and down, the magnetic field will change accordingly. The magnetic sensor can detect this change and convert it into liquid level information to be displayed on the meter head.

[0003] However, the meter head of the existing float level gauge is usually set at the axial position of the measuring rod, which makes it unsuitable in some scenes with relatively small space; at the same time, the existing level gauges are basically installed directly on the container to be measured, and the position and deflection state of the measuring rod cannot be adjusted, which easily causes the measuring rod to be not in a vertical state, resulting in inaccurate measured liquid level data; at the same time, due to the deflection of the measuring rod, the float may touch the container during the floating process, indirectly causing inaccurate data. Utility Model Content

[0004] The utility model aims to provide a float type liquid level gauge with a positioning function, so as to solve the problem that the existing liquid level gauge has inaccurate measurement due to slight deflection of the measuring rod and the floating ball during installation.

[0005] The utility model is realized through the following technical scheme: a float type liquid level gauge with a positioning function, comprising a meter head, a float ball, and a measuring rod, wherein the meter head is mounted on a supporting plate, a guide rod and a line connecting rod are mounted on the supporting plate, assembly holes are respectively provided on the guide rod and the line connecting rod, the measuring rod is respectively inserted into the assembly holes on the guide rod and the line connecting rod, and the measuring rod is perpendicular to the guide rod and the line connecting rod; the supporting plate is movably mounted on a second mounting plate, a first mounting plate is vertically mounted on the second mounting plate, a positioning plate is mounted on the first mounting plate, and the positioning plate is provided with assembly holes; the measuring rod passing through the guide rod and the line connecting rod is inserted into the assembly hole on the positioning plate, so that the measuring rod is perpendicular to the positioning plate, and when the first mounting plate is in a horizontal state or the second mounting plate is in a vertical state, the measuring rod is in a vertical state. This setting can ensure that when the measuring rod is inserted into the liquid to be measured, the angle between the measuring rod and the vertical direction is zero, that is, to prevent the float from being stuck in the liquid container; by setting the guide rod and the line connecting rod, the meter head is set outside the axial position of the measuring rod, so that it can be installed and used in some relatively small spaces.

[0006] In order to better implement the utility model, further, the support plate is provided with a plurality of waist-shaped holes, and the second mounting plate is provided with a plurality of locking bolts, and the locking locking bolts can fix the support plate to the second mounting plate. By providing the waist-shaped holes, the support plate can be rotated relative to the second mounting plate, so that the measuring rod can be smoothly inserted into the assembly hole on the positioning plate after passing through the guide rod and the line connecting rod.

[0007] In order to better implement the utility model, further, the first mounting plate is provided with a threaded hole, and the measuring rod is threadedly connected to the threaded hole. When the first mounting plate or the second mounting plate is fixed, the depth of the measuring rod inserted into the container is adjusted according to the liquid containers of different specifications to measure the depth of the liquid in the containers of multiple specifications.

[0008] In order to better realize the utility model, further, the first mounting plate is provided with a plurality of threaded holes in an array, and the guide rod, the line connecting rod, and the positioning plate are provided with a plurality of assembly holes in an array. Through the plurality of threaded holes and assembly holes, the distance between the measuring rod and the second mounting plate can be changed. After the first mounting plate or the second mounting plate is fixed, the position of the measuring rod can be changed to adapt to the measurement of containers in different positions.

[0009] In order to better implement the utility model, further, the first mounting plate and the second mounting plate are provided with a plurality of mounting holes for mounting. The first mounting plate or the second mounting plate can be fixed by bolts, and the first mounting plate or the second mounting plate can be fixed according to actual conditions, which can adapt to various scenarios.

[0010] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0011] (1) The utility model can position and calibrate the measuring rod so that the measuring rod is in a vertical state, ensuring that the float ball is prevented from being stuck in the liquid container when the measuring rod is inserted into the liquid to be measured; at the same time, the accuracy of the test data is improved;

[0012] (2) The utility model can be installed and used in places with relatively narrow spaces by arranging the meter head outside the axial position of the measuring rod, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model from a front view angle.

[0015] Figure 3 It is a schematic diagram of the waist-shaped hole and locking bolt structure.

[0016] Figure 4 This is a schematic diagram of the positioning plate structure.

[0017] Figure 5 Schematic diagram of measuring rod deflection.

[0018] Among them: 101-first mounting plate; 102-second mounting plate; 103-meter head; 104-floating ball; 105-measuring rod; 106-guide rod; 107-line connecting rod; 108-positioning plate; 109-support plate; 110-locking bolt; 111-waist-shaped hole; 112-assembly hole; 113-mounting hole; 114-threaded hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1:

[0021] like Figure 1-Figure 5 As shown, a float type liquid level gauge with a positioning function comprises a meter head 103, a float ball 104, and a measuring rod 105. The meter head 103 is mounted on a support plate 109, and a guide rod 106 and a line connecting rod 107 are mounted on the support plate 109. The guide rod 106 and the line connecting rod 107 are respectively provided with assembly holes 112. The measuring rod 105 is respectively inserted into the assembly holes 112 on the guide rod 106 and the line connecting rod 107, and the measuring rod 105 is perpendicular to the guide rod 106 and the line connecting rod 107; the support plate 109 is provided with a guide rod 106 and a line connecting rod 107. 09 is movably mounted on the second mounting plate 102, the first mounting plate 101 is vertically mounted on the second mounting plate 102, a positioning plate 108 is mounted on the first mounting plate 101, and an assembly hole 112 is provided through the positioning plate 108; the measuring rod 105 passing through the guide rod 106 and the line connecting rod 107 is inserted into the assembly hole 112 on the positioning plate 108, so that the measuring rod 105 is perpendicular to the positioning plate 108, and when the first mounting plate 101 is in a horizontal state or the second mounting plate 102 is in a vertical state, the measuring rod 105 is in a vertical state. Since there is a connection margin between each part, after the assembly of the device is completed, aligning the header 103 or the support plate 109 does not mean that the measuring rod 105 must be in a vertical state, so it needs to be further fine-tuned.

[0022] After receiving the goods, the user can assemble the scattered parts, specifically: install the header 103, the guide rod 106, and the line connecting rod 107 on the support plate 109, the line in the measuring rod 105 is connected to the header 103 through the inside of the line connecting rod 107, the float 104 is inserted into the measuring rod 105, and the measuring rod 105 is passed through the guide rod 106 and the assembly holes 112 on the line connecting rod 107 in turn. At this time, the measuring rod 105 is perpendicular to the guide rod 106 and the line connecting rod 107, and then the header 103 is passed through the second mounting plate 102, and the locking bolt 110 pre-tightens the support plate 109, and then the measuring rod 105 is further inserted into the assembly hole 112 on the positioning plate 108 In the embodiment, the positioning plate 108 is installed on the first mounting plate 101. At this time, the measuring rod 105 is perpendicular to the positioning plate 108. Then, the locking bolt 110 is completely tightened so that the supporting plate 109 does not shake. Then, only the first mounting plate 101 needs to be fixed in the horizontal direction or the second mounting plate 102 needs to be fixed in the vertical direction. At this time, the measuring rod 105 is in a vertical state, ensuring that when the measuring rod 105 is inserted into the liquid to be measured, the angle between the measuring rod 105 and the vertical direction is zero, that is, preventing the float 104 from being stuck in the liquid container; by setting the guide rod 106 and the line connecting rod 107, the header 103 is set outside the axial position of the measuring rod 105, so that it can be installed and used in some relatively small spaces.

[0023] Embodiment 2:

[0024] like Figure 3 As shown, the support plate 109 is provided with a plurality of waist-shaped holes 111, and the second mounting plate 102 is provided with a plurality of locking bolts 110, and the locking bolts 110 can be tightened to fix the support plate 109 on the second mounting plate 102. By providing the waist-shaped holes 111, the support plate 109 can be rotated relative to the second mounting plate 102, so that the measuring rod 105 passes through the guide rod 106 and the line connecting rod 107 and is smoothly inserted into the assembly hole 112 on the positioning plate 108.

[0025] like Figure 1 As shown, the first mounting plate 101 is provided with a threaded hole 114, and the measuring rod 105 is threadedly connected to the threaded hole 114. When the first mounting plate 101 or the second mounting plate 102 is fixed, the depth of the measuring rod 105 inserted into the container is adjusted according to the liquid containers of different specifications to measure the depth of the liquid in the containers of multiple specifications.

[0026] like Figure 1 , Figure 4As shown, a plurality of threaded holes 114 are arranged in an array on the first mounting plate 101, and a plurality of assembly holes 112 are arranged in an array on the guide rod 106, the line connecting rod 107, and the positioning plate 108. The distance between the measuring rod 105 and the second mounting plate 102 can be changed by providing a plurality of threaded holes 114 and assembly holes 112. After the first mounting plate 101 or the second mounting plate 102 is fixed, the position of the measuring rod 105 can be changed to adapt to the measurement of containers at different positions.

[0027] like Figure 4 As shown, a plurality of mounting holes 113 for mounting are provided on the first mounting plate 101 and the second mounting plate 102. The first mounting plate 101 or the second mounting plate 102 can be fixed by bolts, and the first mounting plate 101 or the second mounting plate 102 can be fixed according to actual conditions, which can adapt to various scenarios.

[0028] If the measuring rod 105 is not inserted into the positioning plate 108, when the measuring rod 105 is not in a vertical state, the float 104 will deflect along an arc trajectory, the center of the arc trajectory is the center of the support plate 109, and the deflection distance is as follows:

[0029] S 偏转 =h·tanA

[0030] Where: S 偏转 The deflection distance of the float 104 in the horizontal direction when the measuring rod 105 is at a deflection angle of A;

[0031] h is the distance from the center of the float 104 to the center of the support plate 109;

[0032] A is the deflection angle of the measuring rod 105;

[0033] From the above, we can conclude that S 偏转 It is proportional to h and A. For example, when h=200mm and A is 1°, the float 104 deflects 3.49mm in the horizontal direction. The deflection of the float 104 causes the float 104 to be easily blocked by the liquid container during the floating process, which indirectly leads to inaccurate measurement. At the same time, the float 104 will also deflect in the vertical direction, which directly leads to inaccurate measurement data. Therefore, by inserting the measuring rod 105 into the positioning plate 108, and then controlling the first mounting plate 101 to be horizontal or the second mounting plate 102 to be vertical, so as to control A in the above formula to be 0°, the corresponding S 偏转 Also set to 0 to ensure the detection data is accurate.

[0034] The liquid level detection principle in the present technical solution is an existing technology known to those skilled in the art and will not be described in detail here. Moreover, the principle is not an innovation of the present technical solution.

[0035] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A float type liquid level gauge with a positioning function, comprising a meter head (103), a float ball (104), and a measuring rod (105), characterized in that: The meter head (103) is mounted on a support plate (109); a guide rod (106) and a line connecting rod (107) are mounted on the support plate (109); the guide rod (106) and the line connecting rod (107) are respectively provided with assembly holes (112); the measuring rod (105) is respectively inserted into the assembly holes (112) on the guide rod (106) and the line connecting rod (107); the measuring rod (105) is perpendicular to the guide rod (106) and the line connecting rod (107); the support plate (109) is movably mounted on a second mounting plate (102); the first The first mounting plate (101) is vertically mounted on the second mounting plate (102); a positioning plate (108) is mounted on the first mounting plate (101); and an assembly hole (112) is provided through the positioning plate (108); a measuring rod (105) passing through a guide rod (106) and a line connecting rod (107) is inserted into the assembly hole (112) on the positioning plate (108), so that the measuring rod (105) is perpendicular to the positioning plate (108); when the first mounting plate (101) is in a horizontal state or the second mounting plate (102) is in a vertical state, the measuring rod (105) is in a vertical state.

2. A float type liquid level gauge with positioning function according to claim 1, characterized in that: The support plate (109) is provided with a plurality of waist-shaped holes (111), and the second mounting plate (102) is provided with a plurality of locking bolts (110); locking the locking bolts (110) can fix the support plate (109) on the second mounting plate (102).

3. The float type liquid level gauge with positioning function according to claim 1, characterized in that: The first mounting plate (101) is provided with a threaded hole (114) extending therethrough, and the measuring rod (105) is threadedly connected to the threaded hole (114).

4. The float type liquid level gauge with positioning function according to claim 1, characterized in that: A plurality of threaded holes (114) are arranged in an array on the first mounting plate (101), and a plurality of assembly holes (112) are arranged in an array on the guide rod (106), the line connecting rod (107), and the positioning plate (108).

5. The float type liquid level gauge with positioning function according to claim 1, characterized in that: The first mounting plate (101) and the second mounting plate (102) are provided with a plurality of mounting holes (113) for mounting.

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