Portable PH meter

Abstract

The utility model relates to the technical field of PH meters, and discloses a portable PH meter which comprises a PH meter body, a connecting plug is inserted into the top of the PH meter body, a connecting wire is fixedly connected to the top of the connecting plug, a fixed connector is fixedly connected to the other end of the connecting wire, an electrode is arranged at the bottom end of the fixed connector, and the fixed connector is fixedly connected with the connecting plug. A fixed limiting ring is arranged on the outer side of the surface of the fixed connector, and a fixed protective sleeve is fixedly connected to one side of the PH meter body; through the mutual cooperation of the fixed connector, the fixed protective sleeve, the fixed limiting ring and the fixed limiting mechanism, in the actual use process, the fixed limiting mechanism is connected with the fixed limiting ring, so that the position of the fixed connector can be fixed; and the electrode at the bottom of the fixed connector is stably inserted into the inner side of the fixed protective sleeve, so that the electrode at the bottom of the fixed connector can be stably protected, and the operation is convenient.

Description

Technical Field

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

[0002] With the rapid development of social economy, the use of pH meters has become one of the very common testing machines in people's tests and experiments. A pH meter is an instrument used to measure the pH value of a solution. A pH meter works 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. There is a corresponding relationship between the electromotive force of the primary battery and the hydrogen ion concentration, and the negative logarithm of the hydrogen ion concentration is the pH value. A pH meter is a common analytical instrument, and factors such as the temperature and ionic strength of the solution to be measured should be considered during the pH measurement process.

[0003] After retrieval, a portable pH meter disclosed in, for example, the publication number CN215833309U includes a metal shell. A fixed convex block is fixedly installed at a position near the top on one side of the metal shell. An inner groove of the convex block is provided inside the fixed convex block. Three inner buckles of the convex block are fixedly installed inside the inner groove of the convex block. An electrode is movably installed inside the inner groove of the convex block. An outer groove of the electrode is provided on the surface of the electrode at the position of the inner groove of the convex block. Pulleys are movably installed on the surfaces of the inner buckles of the convex block. The inner buckles of the convex block are all snapped into the inside of the outer groove of the electrode. A plurality of ball grooves are provided on the inner surface of the outer groove of the electrode. Spring grooves are provided inside the ball grooves. Springs are provided inside the spring grooves. Balls are movably installed inside the ball grooves. Spring plungers are fixedly installed on the surfaces of the balls. The spring plungers are all snapped into the inside of the springs.

[0004] The above-mentioned solution has certain beneficial effects, but in the actual use process, after the motor is clamped and fixed by the fixed convex block, the motor is still exposed, and there is still a situation where the motor is damaged during carrying. Therefore, we propose a portable pH meter. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a portable pH meter to solve the problems existing in the above-mentioned background art.

[0006] The present utility model provides the following technical solution: A portable pH meter, comprising a pH meter body. A connection plug is inserted into the top of the pH meter body. A connection wire is fixedly connected to the top of the connection plug. The other end of the connection wire is fixedly connected to a fixed connection head. An electrode is provided at the bottom end of the fixed connection head. A fixed limiting ring is provided on the outer surface of the fixed connection head. A fixed protective sleeve is fixedly connected to one side of the pH meter body. A fixed limiting mechanism is fixedly connected to the top of the pH meter body;

[0007] Further, a display screen is provided on the upper part of the front surface of the pH meter body. Adjustment buttons are provided on the lower part of the front surface of the pH meter body. A connection protection mechanism is fixedly connected to the outer side of the bottom of the pH meter body.

[0008] Further, the fixed limiting mechanism includes a fixed sleeve block. A stress spring is fixedly connected inside the fixed sleeve block. One end of the stress spring is fixedly connected to a moving installation block. The other side of the moving installation block is fixedly connected to a fixed connecting rod. The other end of the fixed connecting rod is fixedly connected to a connection limiting block. A pressure-receiving inclined surface is provided at the other end of the connection limiting block.

[0009] Further, a surface of the fixed sleeve block is provided with a sliding fit with the outer edge of the end of the moving installation block.

[0010] Further, the outer surface of the other end of the connection limiting block is mutually attached to the inner side of the fixed limiting ring.

[0011] Further, the connection protection mechanism includes a fixed guiding rail. A fixed guiding groove is provided inside the fixed guiding rail. A connection magnet is fixedly connected to the inner top of the fixed guiding groove. A moving installation arm is movably connected to the inner side of the fixed guiding groove. One end of the moving installation arm is fixedly connected to a connection protection plate.

[0012] Further, a transparent protection plate is provided inside the connection protection plate.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. Through the mutual cooperation among the provided fixed connection head, fixed protective sleeve, fixed limiting ring and fixed limiting mechanism, during the actual use process, the fixed limiting mechanism can be connected with the fixed limiting ring, so as to fix the position of the fixed connection head, enabling the electrode at the bottom of the fixed connection head to be stably inserted into the inner side of the fixed protective sleeve, thereby stably protecting the electrode at the bottom of the fixed connection head, and the operation is convenient.

[0015] 2. By providing the connection protection mechanism, when the whole device is carried and moved, the adjustment buttons can be shielded and protected by the connection protection mechanism, avoiding pressing the adjustment buttons during carrying and moving, inputting commands to the pH meter body, so that the whole device can be carried in a stable state, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the fixed limit mechanism of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the connection protection mechanism of the present invention.

[0019] The reference numerals are: 1, pH meter body; 2, connection plug; 3, connection wire; 4, fixed connection head; 5, fixed protective sleeve; 6, fixed limit ring; 7, fixed limit mechanism; 8, display screen; 9, adjustment button; 10, connection protection mechanism; 11, fixed sleeve block; 12, force spring; 13, moving installation block; 14, fixed connecting rod; 15, connection limit block; 16, compression inclined surface; 17, fixed guide rail; 18, fixed guide groove; 19, connection magnet; 20, moving installation arm; 21, connection protection plate; 22, transparent protection plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples, and the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0021] Referring to Figures 1-3 , the present invention provides a portable pH meter, including a pH meter body 1, a connection plug 2 is inserted at the top of the pH meter body 1, a connection wire 3 is fixedly connected to the top of the connection plug 2, the other end of the connection wire 3 is fixedly connected to a fixed connection head 4, an electrode is provided at the bottom end of the fixed connection head 4, a fixed limit ring 6 is provided on the outer surface of the fixed connection head 4, a fixed protective sleeve 5 is fixedly connected to one side of the pH meter body 1, and a fixed limit mechanism 7 is fixedly connected to the top of the pH meter body 1;

[0022] Among them, a display screen 8 is provided on the upper part of the front surface of the pH meter body 1, an adjustment button 9 is provided on the lower part of the front surface of the pH meter body 1, and a connection protection mechanism 10 is fixedly connected to the outer side of the bottom of the pH meter body 1.

[0023] Among them, the fixed limit mechanism 7 includes a fixed sleeve block 11. A force-bearing spring 12 is fixedly connected inside the fixed sleeve block 11. One end of the force-bearing spring 12 is fixedly connected to a movable mounting block 13. The other side of the movable mounting block 13 is fixedly connected to a fixed connecting rod 14. The other end of the fixed connecting rod 14 is fixedly connected to a connecting limit clamping block 15. A pressure-receiving inclined surface 16 is provided at the other end of the connecting limit clamping block 15, which is convenient for moving the movable mounting block 13, compressing the force-bearing spring 12, and simultaneously driving the fixed connecting rod 14 and the connecting limit clamping block 15 to move, so that the end of the connecting limit clamping block 15 can be withdrawn from the inside of the fixed limit ring 6, so that the fixed connecting head 4 and the electrode can be quickly taken out for use. Conversely, the electrode can also be quickly protected.

[0024] Among them, the surface of the fixed sleeve block 11 is provided with a sliding fit with the outer edge of the end of the movable mounting block 13, which is convenient for the end of the movable mounting block 13 to move inside the fixed sleeve block 11, and the operation is convenient and fast.

[0025] Among them, the outer surface of the other end of the connecting limit clamping block 15 is in mutual fit with the inside of the fixed limit ring 6, which is convenient for the other end of the connecting limit clamping block 15 to be stably clamped into the inside of the fixed limit ring 6 to limit and fix the position of the fixed connecting head 4.

[0026] Among them, the connection protection mechanism 10 includes a fixed guide rail 17. A fixed guide groove 18 is provided inside the fixed guide rail 17. A connecting magnet 19 is fixedly connected to the inner top of the fixed guide groove 18. A movable mounting arm 20 is movably connected inside the fixed guide groove 18. One end of the movable mounting arm 20 is fixedly connected to a connecting protection plate 21, which is convenient for the connecting magnet 19 to adsorb and fix the movable mounting arm 20, so as to connect and fix the connecting protection plate 21, so that the connecting protection plate 21 can provide stable protection for the adjustment button 9.

[0027] Among them, a transparent protection plate 22 is provided inside the connecting protection plate 21, which is convenient for quickly observing the adjustment button 9 through the transparent protection plate 22, and the operation is convenient.

[0028] Working principle of the utility model: When in use, when it is necessary to protect the electrode at the bottom end of the fixed connector 4, first insert the electrode at the bottom of the fixed connector 4 into the inner side of the fixed protective sleeve 5. During the downward movement of the bottom edge of the fixed connector 4, it will squeeze the pressure-receiving inclined surface 16, causing the connecting limit block 15 to move automatically, driving the fixed connecting rod 14 to move, and pushing the moving mounting block 13, compressing the force-receiving spring 12. When the bottom of the fixed connector 4 fits with the top of the fixed protective sleeve 5, the force-receiving spring 12 can push the moving mounting block 13, driving the fixed connecting rod 14 and the connecting limit block 15 to reset, so that one end of the connecting limit block 15 can be inserted into the inner side of the fixed limit ring 6 to limit the fixed connector 4, thereby enabling the electrode to be stably received and protected inside the fixed protective sleeve 5. At the same time, the connecting protective plate 21 and the transparent protective plate 22 can stably protect the adjustment button 9. When it is necessary to operate and adjust the adjustment button 9, move the connecting protective plate 21 and the transparent protective plate 22 downward, driving the moving mounting arm 20 to move, so that the moving mounting arm 20 is separated from the connecting magnet 19, enabling the moving mounting arm 20 to move inside the fixed guide groove 18, and the connecting protective plate 21 and the transparent protective plate 22 no longer block and protect the adjustment button 9. The overall structure is simple and the operation is convenient and fast.

[0029] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0030] Second: In the attached drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the utility model and are not used to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A portable pH meter, comprising a pH meter body (1), characterized in that: A connecting plug (2) is inserted at the top of the pH meter body (1), a connecting wire (3) is fixedly connected to the top of the connecting plug (2), the other end of the connecting wire (3) is fixedly connected to a fixed connecting head (4), an electrode is provided at the bottom end of the fixed connecting head (4), a fixed limiting ring (6) is provided on the outer surface of the fixed connecting head (4), a fixed protective sleeve (5) is fixedly connected to one side of the pH meter body (1), and a fixed limiting mechanism (7) is fixedly connected to the top of the pH meter body (1).

2. A portable pH meter according to claim 1, characterized in that: The upper portion of the front surface of the pH meter body (1) is provided with a display screen (8), the lower portion of the front surface of the pH meter body (1) is provided with an adjustment button (9), and the outer side of the bottom of the pH meter body (1) is fixedly connected with a connection protection mechanism (10).

3. A portable pH meter according to claim 1, characterized in that: The fixed limiting mechanism (7) comprises a fixed sleeve block (11), the interior of the fixed sleeve block (11) is fixedly connected with a force spring (12), one end of the force spring (12) is fixedly connected with a movable installation block (13), the other side of the movable installation block (13) is fixedly connected with a fixed connecting rod (14), the other end of the fixed connecting rod (14) is fixedly connected with a connecting limiting block (15), and the other end of the connecting limiting block (15) is provided with a pressure inclined surface (16).

4. A portable pH meter according to claim 3, characterized in that: The surface of the fixed sleeve block (11) is provided with a sliding fit with the outer side of the end edge of the movable installation block (13).

5. A portable pH meter according to claim 3, characterized in that: The outer side of the other end surface of the connecting limiting block (15) is in contact with the inner side of the fixed limiting ring (6).

6. A portable pH meter according to claim 2, characterized in that: The connection protection mechanism (10) comprises a fixed guide rail (17), a fixed guide groove (18) is provided inside the fixed guide rail (17), a connection magnet (19) is fixedly connected to the inner top of the fixed guide groove (18), a movable installation arm (20) is movably connected to the inner side of the fixed guide groove (18), and a connection protection plate (21) is fixedly connected to one end of the movable installation arm (20).

7. A portable pH meter according to claim 6, characterized in that: A transparent protection plate (22) is provided on the inner side of the connection protection plate (21).

Images