Portable acidity meter

Abstract

The utility model discloses a portable acidometer, relates to the field of acidometers, and solves the problem that a support frame cannot be folded and is inconvenient to carry, the portable acidometer comprises an acidometer body, the top of the acidometer body is provided with a storage groove, and the end part of the storage groove is rotatably provided with a rotating plate through a first rotating shaft; the end part of the rotating plate is rotatably provided with a rotating frame through a second rotating shaft, the rotating frame is connected with a moving plate through a lifting assembly, the end part of the moving plate is rotatably provided with a rotating plate through a third rotating shaft, the rotating plate is provided with a telescopic clamping assembly, and the telescopic clamping assembly is provided with a detection needle. And the end part of the detection needle is electrically connected with a data line. Through cooperation of the first rotating shaft, the second rotating shaft and the third rotating shaft, folding of the rotating frame can be achieved, the rotating frame and the detection needle are stored through a storage groove and a containing groove, a worker can conveniently carry the device, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pH meters, in particular to a portable pH meter. Background Art

[0002] An acid-base meter, also known as a pH meter, is an instrument used to measure the acidity or alkalinity value of a solution. It works based on the principle of a primary battery. The electromotive force between the two electrodes of the primary battery, according to the Nernst law, is related to both the inherent properties of the electrodes and the hydrogen ion concentration in the solution.

[0003] There is a corresponding relationship between the electromotive force of the primary battery and the hydrogen ion concentration. The negative logarithm of the hydrogen ion concentration is the pH value. An acid-base meter is a common analytical instrument and is widely used in fields such as agriculture, environmental protection, and industry. Soil pH value is one of the important basic properties of soil.

[0004] Currently, during the use of an acid-base meter, generally a detection needle is inserted into the item to be detected, and a support frame is required for placing the detection needle. However, the support frames in existing pH meters are usually formed by welding and cannot be folded and stored, resulting in a large space occupation when not in use and inconvenience for staff to carry, with low practicality. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the above problems existing in the prior art, the utility model provides a portable pH meter.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model is realized through the following technical solutions: A portable pH meter includes a pH meter body. A storage groove is opened at the top of the pH meter body. One end of the storage groove is rotatably installed with a rotating plate through a first rotating shaft. One end of the rotating plate is rotatably installed with a rotating frame through a second rotating shaft. A moving plate is connected to the rotating frame through a lifting component. One end of the moving plate is rotatably installed with a rotating plate through a third rotating shaft. A telescopic clamping component is arranged on the rotating plate. A detection needle is arranged on the telescopic clamping component. One end of the detection needle is electrically connected to a data cable.

[0009] The lifting component includes a lead screw installed in the rotating frame. The lead screw threadedly penetrates through the bottom of the moving plate, and a knob is fixedly sleeved on the outer wall of the lead screw. The knob movably penetrates through the surface of the rotating frame.

[0010] The telescopic clamping component includes an adjusting plate fixedly connected to the end of a rotating plate that is slidably inserted. A clamping interface is provided at the end of the adjusting plate, and the clamping interface is clamped with the detection needle. A fastening bolt is threadedly connected to the surface of the rotating plate, and the end of the fastening bolt abuts against the surface of the adjusting plate.

[0011] As a preferred solution of the portable pH meter of the present invention, anti-slip lines are provided on the side of the knob in a circumferential array distribution.

[0012] As a preferred solution of the portable pH meter of the present invention, a rubber pad is fixedly installed at one end of the rotating plate away from the first rotating shaft. The first rotating shaft, the second rotating shaft, and the third rotating shaft are all self-locking rotating shafts.

[0013] As a preferred solution of the portable pH meter of the present invention, an elastic pad is fixedly connected in the clamping interface, and the elastic pad is arranged in a U shape.

[0014] As a preferred solution of the portable pH meter of the present invention, a handle is fixedly installed at the rear side of the pH meter body.

[0015] As a preferred solution of the portable pH meter of the present invention, a receiving groove is provided at the bottom of the storage groove, and the receiving groove is used to receive the detection needle.

[0016] (III) Beneficial effects

[0017] The present invention provides a portable pH meter, having the following beneficial effects:

[0018] 1. Rotate the folding plate downward to the vertical position, then rotate the rotating frame axially around the second rotating shaft until it is flush with the rotating plate, and finally flip the rotating frame counterclockwise until it is folded in the storage groove, then the folding and storage of the device can be completed. At this time, the staff can carry the pH meter body by hand through the handle, which is convenient and fast.

[0019] 2. Rotate the knob to make the lead screw rotate, drive the moving plate to move vertically, adjust the placement height of the detection needle. At the same time, the adjusting plate can be pulled to adjust its length extending out of the folding plate, and the position of the adjusting plate can be fixed by using the fastening bolt to fix the adjusting plate. Description of the drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of the whole of the utility model.

[0022] Figure 2 It is a schematic structural diagram of the rotating frame after being unfolded in the utility model.

[0023] Figure 3 It is Figure 2 a schematic structural diagram from a top-down perspective.

[0024] Figure 4 It is Figure 1 an enlarged structural view of A in

[0025] Figure 5 It is Figure 2 an enlarged structural view of B in

[0026] In the figure, 1 is the pH meter body; 2 is the storage groove; 3 is the rotating plate; 4 is the rotating frame; 5 is the moving plate; 6 is the detection needle; 7 is the data line; 8 is the folding plate; 9 is the adjusting plate; 10 is the card interface; 11 is the fastening bolt; 12 is the lead screw; 13 is the knob; 14 is the anti-slip pattern; 15 is the rubber pad; 16 is the elastic pad; 17 is the receiving groove; 18 is the handle. Specific embodiments

[0027] 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.

[0028] Embodiment 1

[0029] Referring to Figure 1 , 2 , 3, 4 and 5, this is the first embodiment of the present utility model. This embodiment provides a portable pH meter, including a pH meter body 1, a handle 18 is fixedly installed on the rear side of the pH meter body 1, a storage groove 2 is opened at the top of the pH meter body 1, a rotating plate 3 is rotatably installed at the end of the storage groove 2 through a first rotating shaft, a rotating frame 4 is rotatably installed at the end of the rotating plate 3 through a second rotating shaft, a moving plate 5 is connected to the rotating frame 4 through a lifting assembly, a folding plate 8 is rotatably installed at the end of the moving plate 5 through a third rotating shaft, a detection needle 6 is provided on the telescopic clamping assembly, and the end of the detection needle 6 is electrically connected to a data line 7;

[0030] The lifting assembly includes a lead screw 12 installed in the rotating frame 4. The lead screw 12 threadedly penetrates through the bottom of the moving plate 5, and an outer wall of the lead screw 12 is fixedly sleeved with a knob 13. The knob 13 movably penetrates through the surface of the rotating frame 4;

[0031] Specifically, an anti-slip pattern 14 is provided on the side of the knob 13 and is distributed in a circumferential array. The first rotating shaft, the second rotating shaft, and the third rotating shaft are all self-locking rotating shafts;

[0032] Further, rotate the rotating frame 4 clockwise to make it in the vertical position, then rotate the rotating frame 4 around the second rotating shaft, and then rotate it to the horizontal position around the third rotating shaft. Finally, rotate the knob 13 to rotate the lead screw 12 and drive the moving plate 5 to move vertically, so as to adjust the placement height of the detection needle 6.

[0033] Embodiment 2

[0034] Refer to Figure 1 、 2 Figs. 3, 4 and 5, which are the second embodiment of the present utility model. Based on the previous embodiment, a telescopic clamping component is provided on the folding plate 8;

[0035] The telescopic clamping component includes an adjusting plate 9 fixedly connected to the end of the folding plate 8 in a sliding manner. A clamping interface 10 is opened at the end of the adjusting plate 9, and the clamping interface 10 is clamped with the detection needle 6. A fastening bolt 11 whose end abuts against the surface of the adjusting plate 9 is threadedly connected to the surface of the folding plate 8;

[0036] Specifically, a receiving groove 17 is opened at the bottom of the receiving groove 2 for receiving the detection needle 6. A rubber pad 15 is fixedly installed at one end of the folding plate 8 away from the first rotating shaft. An elastic pad 16 is fixedly connected in the clamping interface 10, and the elastic pad 16 is arranged in a U shape;

[0037] Further, loosen the fastening bolt 11, then pull out the adjusting plate 9 to adjust the length of its extension outside the folding plate 8, and then tighten the fastening bolt 11 so that its end abuts against the surface of the adjusting plate 9, so as to fix the position of the adjusting plate 9 and realize the position adjustment of the detection needle 6 during use.

[0038] Working principle: During use, first rotate the rotating frame 4 clockwise to make it in the vertical position, then rotate the rotating frame 4 around the second rotating shaft, and then rotate it to the horizontal position around the third rotating shaft. After this process, due to the self-locking property of the self-locking rotating shaft, it can automatically lock at any position of rotation;

[0039] Take out the detection needle 6 from the accommodation groove 17 and snap it into the card interface 10. The elasticity of the elastic pad 16 can effectively hold the detection needle 6 in the card interface 10. Then rotate the knob 13 to make the lead screw 12 rotate, driving the moving plate 5 to move vertically to adjust the placement height of the detection needle 6. At the same time, the fastening bolt 11 can be loosened, and then the adjusting plate 9 is pulled to adjust the length of its extension outside the folding plate 8. Subsequently, the fastening bolt 11 is tightened so that its end abuts against the surface of the adjusting plate 9 to fix the position of the adjusting plate 9. Finally, the solution to be detected is placed below the detection needle 6, and then the knob 13 is rotated again to make the adjusting plate 9 drive the detection needle 6 to move downward until the detection needle 6 extends into the detection solution. Connect the data line 7 to the pH meter body 1, and then control the pH meter body 1 to measure the pH value in the detection solution;

[0040] After the detection is completed, remove the detection needle 6 and pull out the data line 7, and place them in the accommodation groove 17. Then rotate the knob 13 to make the lead screw 12 drive the moving plate 5 to move upward. Next, rotate the folding plate 8 downward to the vertical position. Subsequently, rotate the rotating frame 4 around the second rotating shaft until it is flush with the rotating plate 3. Finally, turn the rotating frame 4 counterclockwise until it is folded in the storage groove 2, and the folding and storage of the device can be completed. When the rotating frame 4 is folded into the storage groove 2, the rubber pad 15 and the inner wall of the storage groove 2 are used to effectively position the rotating frame 4. At this time, the staff can carry the pH meter body 1 by holding the handle 16, which is convenient and fast.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A portable pH meter, comprising a pH meter body (1), characterized in that: A storage groove (2) is formed at the top of the pH meter body (1). One end of the storage groove (2) is rotatably installed with a rotating plate (3) through a first rotating shaft. One end of the rotating plate (3) is rotatably installed with a rotating frame (4) through a second rotating shaft. A moving plate (5) is connected to the rotating frame (4) through a lifting assembly. One end of the moving plate (5) is rotatably installed with a folding plate (8) through a third rotating shaft. A telescopic clamping assembly is arranged on the folding plate (8). A detection needle (6) is arranged on the telescopic clamping assembly. One end of the detection needle (6) is electrically connected to a data line (7). The lifting assembly includes a lead screw (12) installed in the rotating frame (4). The lead screw (12) threadedly penetrates through the bottom of the moving plate (5). A knob (13) is fixedly sleeved on the outer wall of the lead screw (12). The knob (13) movably penetrates through the surface of the rotating frame (4). The telescopic clamping assembly includes an adjusting plate (9) fixedly connected to and slidably inserted into one end of the folding plate (8). A clamping interface (10) is formed at one end of the adjusting plate (9). The clamping interface (10) is clamped with the detection needle (6). A fastening bolt (11) with one end abutted against the surface of the adjusting plate (9) is threadedly connected to the surface of the folding plate (8).

2. The portable pH meter according to claim 1, characterized in that: Anti-slip lines (14) are arranged on the side of the knob (13) in a circumferential array distribution.

3. A portable pH meter according to claim 1, characterized in that: A rubber pad (15) is fixedly installed at one end of the folding plate (8) away from the first rotating shaft. The first rotating shaft, the second rotating shaft and the third rotating shaft are all self-locking rotating shafts.

4. A portable pH meter according to claim 1, wherein: An elastic pad (16) is fixedly connected in the clamping interface (10). The elastic pad (16) is arranged in a U shape.

5. A portable pH meter according to claim 1, characterized in that: A handle (18) is fixedly installed at the rear side of the pH meter body (1).

6. A portable pH meter according to claim 1, characterized in that: A receiving groove (17) is formed at the bottom of the storage groove (2). The receiving groove (17) is used for receiving the detection needle (6).

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