PH detector

Abstract

The PH detector comprises a detector shell, and a vertical connecting rod is connected to the detector shell; an electrode stand is vertically connected to the vertical connecting rod in a sliding manner, and a plurality of vertically arranged clamping grooves are formed in the vertical connecting rod; a mounting groove is formed in the end part of the electrode stand; the outer side of the mounting groove of the electrode stand is detachably connected with a maintenance cover; a clamping device is connected between the electrode stand and the maintenance cover; the clamping device comprises a sliding block, a button and a spring; the sliding block is slidably connected between the electrode stand and the maintenance cover, the front end of the sliding block is connected with a clamping block, and the other end of the sliding block is connected with a spring; a first guide inclined plane is arranged above the sliding block; the lower part of the button is connected with a limiting plate for preventing the button from loosening; and a guide seat is connected below the limiting plate. When the clamping device is damaged, the sliding block, the button and the spring can be conveniently taken out for maintenance or replacement by detaching the maintenance cover.

Description

Technical Field

[0001] This utility model relates to testing instruments, specifically a pH meter. Background Technology

[0002] In the current process of making xiaolongbao (soup dumplings), a pH meter is often used to ensure that the dough has the appropriate acidity or alkalinity. The pH meter helps to detect the acidity or alkalinity of the dough, ensuring that the dough is not too acidic or too alkaline. The acidity or alkalinity of the dough directly affects the taste and texture of the finished product. If the dough is too acidic or too alkaline, the final xiaolongbao may not achieve the ideal taste and texture. A pH meter is an instrument that measures the acidity or alkalinity of a solution using the potentiometric method. Its core principle is based on the relationship between hydrogen ion concentration and potential difference. The pH meter detects the hydrogen ion activity in the solution through a glass electrode and a reference electrode, quantifying the acidity or alkalinity with a pH value (range 0-14). pH = 7 is neutral, <7 is acidic, and >7 is alkaline.

[0003] Existing pH meters generally have an electrode holder for fixing the electrodes. In order to facilitate the adjustment of the height of the electrode holder, a vertical connecting rod is usually provided to connect to the housing of the meter. The electrode holder is fixed to the vertical connecting rod by a limiting device (i.e., the snap-fit ​​device of this utility model). However, after a long period of use, the limiting device (i.e., the snap-fit ​​device of this utility model) is prone to wear or damage, making it unusable. Therefore, a pH meter that is easy to repair and replace the snap-fit ​​device is what we need. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem of providing a pH meter with a convenient repair and replacement of the snap-fit ​​device.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model for a pH meter is as follows:

[0006] The device includes a detector housing with a vertical connecting rod connected to it. An electrode holder is slidably connected to the vertical connecting rod, which has multiple vertically arranged slots. The electrode holder has a mounting slot at its end. A maintenance cover is detachably connected to the outside of the mounting slot of the electrode holder. A locking device for limiting the electrode holder's position is connected between the electrode holder and the maintenance cover. The locking device includes a slider, a button, and a spring. The slider is slidably connected between the electrode holder and the maintenance cover, and a locking block for engaging the slots is connected to the front end of the slider. The other end of the slider is connected to a spring; the locking block is pushed by the spring to slide and lock into the slot; the button and the vertical connecting rod are vertically slidably connected between the electrode holder and the maintenance cover; a first guide slope is provided above the slider; a limiting plate is connected below the button to prevent it from loosening; a guide seat matching the first guide slope is connected below the limiting plate; the bottom wall of the guide seat is close to the first guide slope, and by pressing the button down, the guide seat pushes the slider backward through the cooperation with the first guide slope, causing the locking block to leave the slot.

[0007] The slider has grooves on both sides; the electrode holder and the maintenance cover are respectively connected to slide rails corresponding to the two grooves; the slider is slidably connected between the electrode holder and the maintenance cover through the cooperation of the grooves and slide rails.

[0008] The front end of the maintenance cover is connected to the electrode frame by bolts, and the rear end of the maintenance cover is connected to a connecting lug; the connecting lug is connected to the electrode frame by bolts.

[0009] The vertical connecting rod has five slots arranged vertically at equal intervals.

[0010] The rear end of the slider is connected to a first mounting block; the rear end of the electrode holder's mounting groove is connected to a second mounting block; one end of the spring is fitted onto the first mounting block, and the other end is fitted onto the second mounting block.

[0011] The technical effect that this utility model can achieve is: the pH meter of this utility model has a maintenance cover that can be detachably connected to the outside of the mounting slot of the electrode frame. When the snap-fit ​​device is damaged, the maintenance cover can be directly removed. At this time, the slider, button and spring of the snap-fit ​​device can be directly taken out from the mounting slot for replacement or repair, which is very convenient. Attached Figure Description

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0013] Figure 1 This is an exploded view of a pH detector according to this utility model;

[0014] Figure 2 yes Figure 1Enlarged view of part A;

[0015] Figure 3 This is a schematic diagram of the structure of a pH detector according to this utility model;

[0016] Figure 4 This is a structural diagram of the maintenance cover, slider, and button. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] See Figures 1 to 4 .

[0019] A pH meter includes a housing 1, a vertical connecting rod 2 connected to the housing 1, an electrode holder 3 slidably connected to the vertical connecting rod 2, and multiple vertically arranged slots 4 on the vertical connecting rod 2; specifically, five vertically equidistant slots 4 are provided on the vertical connecting rod 2. An installation groove 5 is provided at the end of the electrode holder 3, and a maintenance cover 6 is detachably connected to the outside of the installation groove 5 of the electrode holder 3; specifically, the front end of the maintenance cover 6 is connected to the electrode holder 3 by bolts, and the rear end of the maintenance cover 6 is connected to a connecting ear 31, which is connected to the electrode holder 3 by bolts. The maintenance cover 6 is connected to the electrode holder 3 by bolts, facilitating the removal of the maintenance cover 6.

[0020] A locking device for limiting the electrode holder 3 is connected between the electrode holder 3 and the maintenance cover 6. The locking device includes a slider 8, a button 9, and a spring 10. The slider 8 is slidably connected between the electrode holder 3 and the maintenance cover 6. Specifically, the slider 8 has grooves 21 on both sides. The electrode holder 3 and the maintenance cover 6 are respectively connected to slide rails 22 corresponding to the two grooves 21. The slider 8 is slidably connected between the electrode holder 3 and the maintenance cover 6 through the cooperation of the grooves 21 and the slide rails 22. The front end of the slider 8 is connected to a locking block 11 for locking the locking slot 4. The other end of the slider 8 is connected to the spring 10. The locking block 11 is pushed by the spring 10 to slide and lock into the locking slot 4. Specifically, the rear end of the slider 8 is connected to a first mounting block 41, and the rear end of the mounting slot 5 of the electrode holder 3 is connected to a second mounting block 42. One end of the spring 10 is sleeved on the first mounting block 41, and the other end is sleeved on the second mounting block 42.

[0021] Button 9 and vertical connecting rod 2 are vertically slidably connected between electrode holder 3 and maintenance cover 6; a first guide slope 12 is provided above slider 8, and a limiting plate 13 is connected below button 9 to prevent it from loosening. A guide seat 14 that matches the first guide slope 12 is connected below the limiting plate 13. The bottom wall of guide seat 14 is close to the first guide slope 12. By pressing button 9 down, guide seat 14 pushes slider 8 backward by cooperating with the first guide slope 12, causing the locking block 11 to leave the slot 4.

[0022] In use, the electrode holder 3 is limited by the locking block 11 locking onto the slot 4. When the position of the electrode holder 3 needs to be adjusted, the button 9 is pressed down, and both the button 9 and the guide seat 14 move downward. As the guide seat 14 moves downward, it pushes the slider 8 to move backward along the slide rail 22 through the cooperation of the first guide inclined surface 12 until the locking block 11 leaves the slot 4. At this time, the spring 10 is compressed, and the electrode holder 3 can slide vertically along the vertical connecting rod 2 to adjust the electrode holder 3 to the required height. Then, the button 9 is released, and the spring 10 returns to its original state, pushing the slider 8 to move forward along the slide rail 22 until the locking block 11 is locked onto the slot 4 at the corresponding height. The button 9 also returns to its original state. The maintenance cover 6 of this utility model is connected to the electrode holder 3 by bolts. Therefore, when the locking device is damaged, the maintenance cover 6 can be removed, and the slider 8, button 9, and spring 10 of the locking device can be directly taken out from the mounting slot 5 for easy repair or replacement.

Claims

1. A PH detector, comprising a detector housing (1), a vertical connecting rod (2) is connected to the detector housing (1); an electrode holder (3) is vertically and slidingly connected to the vertical connecting rod (2), characterized in that: The vertical connecting rod (2) is provided with a plurality of vertically arranged clamping grooves (4); the electrode holder (3) is provided with a mounting groove (5) at the end; the electrode holder (3) is detachably connected with a maintenance cover (6) outside the mounting groove (5); the electrode holder (3) and the maintenance cover (6) are connected with a clamping device for limiting the electrode holder (3); the clamping device comprises a sliding block (8), a button (9) and a spring (10); the sliding block (8) is slidingly connected between the electrode holder (3) and the maintenance cover (6), the front end of the sliding block (8) is connected with a clamping block (11) for clamping the clamping groove (4), the other end of the sliding block (8) is connected with the spring (10); the clamping block (11) is clamped in the clamping groove (4) by the spring (10) pushing the clamping block (11) to slide; the button (9) and the vertical connecting rod (2) are both vertically slidingly connected between the electrode holder (3) and the maintenance cover (6); the sliding block (8) is provided with a first guide inclined surface (12) above; the button (9) is connected with a limiting plate (13) below to prevent itself from loosening; the limiting plate (13) is connected with a guide seat (14) below, which matches the first guide inclined surface (12); the bottom wall of the guide seat (14) abuts against the first guide inclined surface (12), by pressing the button (9) downward, the guide seat (14) pushes the sliding block (8) to move backward to make the clamping block (11) leave the clamping groove (4) by cooperating with the first guide inclined surface (12).

2. The PH detector according to claim 1, characterized in that: Both sides of the sliding block (8) are provided with sliding grooves (21); the electrode holder (3) and the maintenance cover (6) are respectively connected with sliding rails (22) corresponding to the two sliding grooves (21); the sliding block (8) is slidingly connected between the electrode holder (3) and the maintenance cover (6) by the cooperation of the sliding grooves (21) and the sliding rails (22).

3. The PH detector according to claim 1, characterized in that: The front end of the maintenance cover (6) is connected with the electrode holder (3) by bolts, and the rear end of the maintenance cover (6) is connected with a connecting lug (31); the connecting lug (31) is connected with the electrode holder (3) by bolts.

4. The PH detector according to claim 1, characterized in that: Five vertically equidistant clamping grooves (4) are arranged on the vertical connecting rod (2).

5. The PH detector according to claim 1, characterized in that: The rear end of the sliding block (8) is connected with a first mounting block (41); the rear end of the mounting groove (5) of the electrode holder (3) is connected with a second mounting block (42); one end of the spring (10) is sleeved on the first mounting block (41), and the other end is sleeved on the second mounting block (42).

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