PH detection instrument

Abstract

The utility model relates to the technical field of detection equipment, and discloses a pH detection instrument, one side of the top of an instrument shell is provided with a liquid crystal display screen, one side of the top of the instrument shell far away from the liquid crystal display screen is provided with control buttons which are arranged in order, one side of the surface of the instrument shell is movably connected with a connecting wire, and the connecting wire is connected with the liquid crystal display screen. The end, away from the instrument outer shell, of the connecting line is movably connected with a detection probe outer shell, an auxiliary holding belt is arranged at the bottom of the instrument outer shell, round through holes which are arranged in order are formed in the surface of the auxiliary holding belt, and arc-shaped anti-skid grooves which are arranged in order are formed in the two sides of the surface of the instrument outer shell. A mounting socket is formed in the position, movably connected with the connecting line, of the instrument outer shell, a mounting plug is arranged at the position, close to the mounting socket formed in the instrument outer shell, of the connecting line, and by means of the arc-shaped anti-skid groove and the auxiliary holding belt, friction force between the hand and the instrument can be increased, and damage caused by falling of the instrument is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, and more specifically to a pH detection instrument. Background Art

[0002] A pH meter is an instrument used to measure the acidity and alkalinity of a substance. It is commonly used in laboratories, industrial production, environmental monitoring and other fields. The pH value is an indicator that describes the acidity and alkalinity of a solution. Its value ranges from 0 to 14, where 7 indicates neutrality, less than 7 indicates acidity, and greater than 7 indicates alkalinity. The pH meter determines the acidity and alkalinity of the solution by measuring the hydrogen ion concentration in the solution, thereby deriving the corresponding pH value. Common pH test instruments include pH electrodes, pH meters and other equipment, which can accurately and quickly measure the pH value of a sample.

[0003] The existing pH tester needs to be held in one hand during actual use, and the pH electrode is placed in the test water with the other hand for testing. However, when holding the instrument with one hand, the hand may slip due to sweating, causing the tester to fall into the water or the ground, causing damage to the instrument and causing economic losses. In addition, the traditional pH electrode can generally only detect the pH value of the sample surface during testing, so the test data may have large errors, which is very inconvenient. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pH detection instrument to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a pH detection instrument, wherein a liquid crystal display is provided on one side of the top of the instrument housing, neatly arranged control buttons are provided on a side of the top of the instrument housing away from the liquid crystal display, a connecting wire is movably connected to one side of the surface of the instrument housing, and an end of the connecting wire away from the instrument housing is movably connected to a detection probe housing, an auxiliary holding belt is provided at the bottom of the instrument housing, neatly arranged circular through holes are provided on the surface of the auxiliary holding belt, neatly arranged arc-shaped anti-skid grooves are provided on both sides of the surface of the instrument housing, and a mounting socket is provided on the instrument housing at a position where the connecting wire is movably connected, and the arc-shaped anti-skid groove and the auxiliary holding belt are conducive to increasing the friction between the hand and the instrument, thereby preventing the instrument from falling and causing damage;

[0006] Furthermore, the connecting line is provided with an installation plug at a position close to an installation socket provided on the outer shell of the instrument, and the installation of the connecting line is facilitated by the installation socket.

[0007] Furthermore, the detection probe outer shell is movably connected to an adjustment knob at one end near the connecting line, and a telescopic inner cavity is provided inside the detection probe outer shell. A detection pen is movably connected inside the telescopic inner cavity, which facilitates the protection of the detection pen through the detection probe outer shell.

[0008] Furthermore, the surface of the adjusting knob is provided with neatly arranged anti-slip grooves, the side of the adjusting knob away from the connecting line is provided with a cylindrical groove, the adjusting knob is provided with a limiting groove on the inner wall of the cylindrical groove, and the inner wall of the cylindrical groove of the adjusting knob is fixedly connected to the side of the outer shell of the detection probe, which is facilitated by the adjusting knob to drive the detection pen to extend and retract.

[0009] Furthermore, limiting grooves are provided on both sides of the inner wall of the telescopic inner cavity opened in the outer shell of the detection probe, a limiting plate is provided on the side of the outer shell of the detection probe close to the adjustment knob, a cylindrical groove is provided on the side of the inner shell of the detection probe away from the telescopic inner cavity, and a waterproof rubber plug is fixedly connected to the inside of the outer shell of the detection probe away from the cylindrical groove. The waterproof rubber plug can help to block the sample to be tested and prevent it from entering the inner shell of the detection probe.

[0010] Furthermore, a limiting ring is fixedly sleeved on the surface of the detection pen, and limiting slide rails are fixedly connected to both sides of the surface of the limiting ring. A pH detection electrode is provided on the side of the detection pen away from the adjustment knob. The limiting slide rail is used to limit the detection pen and prevent it from rotating with the adjustment knob.

[0011] Technical effects and advantages of this utility model:

[0012] 1. The utility model is provided with an auxiliary holding belt and an arc-shaped anti-skid groove, which is conducive to increasing the friction of the hand when holding the pH test instrument through the arc-shaped anti-skid groove, preventing the pH test instrument from slipping, and the auxiliary holding belt and the circular through-hole are conducive to inserting the fingers into the circular through-hole when holding with one hand, so that the connection between the auxiliary holding belt and the pH test instrument and the hand is tighter, avoiding damage caused by falling.

[0013] 2. The utility model is provided with a detection probe outer shell, an adjustment knob, and a waterproof rubber plug, which is conducive to the pH detection electrode being able to be placed inside the detection probe outer shell when actually performing pH detection, so that the pH detection electrode can selectively contact the pH value of the sample at different depths when detecting the pH value of the sample, thereby improving the accuracy and reliability of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the instrument housing structure of the present utility model.

[0016] Figure 3 This is a schematic diagram of the connecting wire structure of the present utility model.

[0017] Figure 4 This is a schematic cross-sectional view of the outer shell structure of the detection probe of the present invention.

[0018] Figure 5 This is a schematic cross-sectional view of the adjustment knob structure of the present utility model.

[0019] Figure 6 This is a schematic diagram of the outer shell structure of the detection probe of the present utility model.

[0020] The accompanying drawings are marked as follows: 1. Instrument outer shell; 2. LCD display; 3. Control button; 4. Connecting wire; 401. Installation plug; 5. Detection probe outer shell; 501. Telescopic inner cavity; 502. Limiting plate; 503. Cylindrical groove; 504. Limiting slide groove; 6. Auxiliary holding belt; 7. Circular through hole; 8. Installation socket; 9. Arc-shaped anti-slip groove; 10. Adjustment knob; 1001. Anti-slip groove; 1002. Cylindrical groove; 1003. Limiting groove; 1004. Adjustment screw; 11. Detection pen; 1101. Limiting ring; 1102. Limiting slide rail; 1103. pH detection electrode; 12. Waterproof rubber plug. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention 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. The pH detection instrument involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Reference Figures 1-6As shown, the utility model provides a pH detection instrument, wherein a liquid crystal display screen 2 is provided on one side of the top of the instrument housing 1, and neatly arranged control buttons 3 are provided on the side of the top of the instrument housing 1 away from the liquid crystal display screen 2. A connecting line 4 is movably connected to one side of the surface of the instrument housing 1, and an end of the connecting line 4 away from the instrument housing 1 is movably connected to a detection probe housing 5, an auxiliary holding belt 6 is provided at the bottom of the instrument housing 1, and neatly arranged circular through holes 7 are provided on the surface of the auxiliary holding belt 6. Neatly arranged arc-shaped anti-skid grooves 9 are provided on both sides of the surface of the instrument housing 1, and a mounting socket 8 is provided on the instrument housing 1 at the position where the connecting line 4 is movably connected. The arc-shaped anti-skid groove 9 and the auxiliary holding belt 6 are conducive to increasing the friction between the hand and the instrument, thereby preventing the instrument from falling and causing damage;

[0023] Reference Figure 2 As shown, a mounting plug 401 is provided at a position of the connecting wire 4 close to the mounting socket 8 provided on the outer shell 1 of the instrument, and the mounting socket 8 facilitates the installation of the connecting wire 4 .

[0024] Reference Figure 3-Figure 4 As shown, the detection probe outer shell 5 is movably connected to an adjustment knob 10 near one end of the connecting line 4, and a telescopic inner cavity 501 is opened inside the detection probe outer shell 5, and a detection pen 11 is movably connected inside the telescopic inner cavity 501. The detection probe outer shell 5 is conducive to protecting the detection pen 11.

[0025] Reference Figure 5 As shown, the surface of the adjusting knob 10 is provided with neatly arranged anti-slip grooves 1001, and a cylindrical groove 1002 is provided on the side of the adjusting knob 10 away from the connecting line 4. A limiting groove 1003 is provided on the inner wall of the cylindrical groove 1002 provided on the adjusting knob 10, and an adjusting screw 1004 is fixedly connected to the side of the inner wall of the cylindrical groove 1002 provided on the adjusting knob 10 close to the outer shell 5 of the detection probe. The adjusting knob 10 is used to facilitate the extension and retraction of the detection pen 11.

[0026] Reference Figure 6 As shown, limiting grooves 504 are provided on both sides of the inner wall of the telescopic inner cavity 501 opened in the outer shell 5 of the detection probe, a limiting plate 502 is provided on the side of the outer shell 5 of the detection probe close to the adjustment knob 10, and a cylindrical groove 503 is provided on the side of the inner shell 5 of the detection probe away from the telescopic inner cavity 501. A waterproof rubber plug 12 is fixedly connected to the inside of the outer shell 5 of the detection probe away from the cylindrical groove 503. The waterproof rubber plug 12 is helpful to block the sample to be tested and prevent it from entering the interior of the outer shell 5 of the detection probe.

[0027] Reference Figure 4As shown, a limiting ring 1101 is fixedly sleeved on the surface of the detection pen 11, and limiting slide rails 1102 are fixedly connected to both sides of the surface of the limiting ring 1101. A pH detection electrode 1103 is provided on the side of the detection pen 11 away from the adjustment knob 10. The limiting slide rail 1102 is helpful to limit the detection pen 11 and prevent the detection pen 11 from rotating with the adjustment knob 10.

[0028] The working principle of the present utility model is as follows: first, when using it, insert the left hand fingers into the circular through hole 7 opened in the auxiliary holding belt 6, and then hold the arc-shaped anti-slip grooves 9 opened on both sides of the surface of the instrument outer shell 1, and then align the installation plug 401 opened on the connecting line 4 with the installation socket 8 opened on the instrument outer shell 1 for insertion, and then hold the surface position of the detection probe outer shell 5 with the right hand, and then when it is necessary to detect the pH value of the sample, the right thumb is placed on the anti-slip groove 1001 opened on the surface of the adjustment knob 10, and then the adjustment knob 10 is toggled to one side to rotate the adjustment knob 10. At this time, the rotation of the adjustment knob 10 causes the adjustment screw 1004 to rotate following the cylindrical groove 503 opened in the detection probe outer shell 5. At this time, when the adjustment screw 1004 rotates, the detection pen 11 movably connected in the telescopic inner cavity 501 is restricted by the limiting ring 1101 and the limiting slide rail 1102 due to the rotation of the adjustment screw 1004 in the telescopic inner cavity 501. Slide, at this time the limiting slide rail 1102 slides in the limiting slide groove 504, and then under the continuous rotation of the adjusting knob 10, the pH detection electrode 1103 opened by the detection pen 11 is away from the inside of the telescopic inner cavity 501 through the middle of the waterproof rubber plug 12, and then the pH detection electrode 1103 touches the sample to be tested, and then it can be adjusted by observation through the LCD screen 2 and the control button 3 opened on the surface of the instrument outer shell 1. When it is necessary to detect the value of the bottom position of the sample, first restore the detection pen 11, and then insert the detection probe outer shell 5 vertically into the internal position of the sample. At this time, the telescopic inner cavity 501 opened by the detection probe outer shell 5 is blocked by atmospheric pressure and the waterproof rubber plug 12, so that the sample cannot enter the telescopic inner cavity 501. At this time, rotate the adjusting knob 10 as described above to make the detection pen 11 drive the pH detection electrode 1103 away from the telescopic inner cavity 501. At this time, the pH detection electrode 1103 contacts the bottom of the sample, and then the detected value can be viewed and recorded through the LCD screen 2.

[0029] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pH detection instrument, comprising an instrument housing (1), characterized in that: A liquid crystal display screen (2) is provided on one side of the top of the instrument housing (1); neatly arranged control buttons (3) are provided on the side of the top of the instrument housing (1) away from the liquid crystal display screen (2); a connecting line (4) is movably connected to one side of the surface of the instrument housing (1); an end of the connecting line (4) away from the instrument housing (1) is movably connected to a detection probe housing (5); an auxiliary holding belt (6) is provided on the bottom of the instrument housing (1); neatly arranged circular through holes (7) are provided on the surface of the auxiliary holding belt (6); neatly arranged arc-shaped anti-slip grooves (9) are provided on both sides of the surface of the instrument housing (1); and a mounting socket (8) is provided on the instrument housing (1) at the position where the connecting line (4) is movably connected.

2. A pH detection instrument according to claim 1, characterized in that: The connection line (4) is provided with an installation plug (401) at a position close to the installation socket (8) provided on the outer shell (1) of the instrument.

3. A pH detection instrument according to claim 1, characterized in that: An adjusting knob (10) is movably connected to one end of the detection probe outer shell (5) near the connecting line (4), a telescopic inner cavity (501) is provided inside the detection probe outer shell (5), and a detection pen (11) is movably connected inside the telescopic inner cavity (501).

4. A pH detection instrument according to claim 3, characterized in that: The surface of the adjusting knob (10) is provided with neatly arranged anti-slip grooves (1001); a cylindrical groove (1002) is provided on the side of the adjusting knob (10) away from the connecting line (4); a limiting groove (1003) is provided on the inner wall of the cylindrical groove (1002) provided on the adjusting knob (10); and an adjusting screw (1004) is fixedly connected to the inner wall of the cylindrical groove (1002) provided on the adjusting knob (10) and close to the outer shell (5) of the detection probe.

5. A pH detection instrument according to claim 3, characterized in that: Limiting sliding grooves (504) are provided at both sides of the inner wall of the telescopic inner cavity (501) provided in the detection probe outer shell (5); a limiting plate (502) is provided on the side of the detection probe outer shell (5) close to the adjustment knob (10); a cylindrical groove (503) is provided on the side of the detection probe outer shell (5) away from the telescopic inner cavity (501); and a waterproof rubber plug (12) is fixedly connected to the inside of the detection probe outer shell (5) away from the cylindrical groove (503).

6. A pH detection instrument according to claim 3, characterized in that: A limiting collar (1101) is fixedly sleeved on the surface of the detection pen (11), and limiting slide rails (1102) are fixedly connected to both sides of the surface of the limiting collar (1101). A pH detection electrode (1103) is provided on the side of the detection pen (11) away from the adjustment knob (10).

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