PH meter with fixing support

Abstract

A pH meter with a fixing support comprises a pH meter instrument table shell, an electrode and the fixing support, and a base is connected to the lower portion of the pH meter instrument table shell; a placement groove is formed in the base; the fixing support comprises a supporting rod and a fixing frame. The fixing frame is provided with a clamping groove used for installing an electrode. The fixing frame is further connected with a limiting device. The supporting rod is L-shaped; the supporting rod is in threaded connection with a limiting bolt; a first insertion hole is formed in the side edge of the PH meter instrument table shell; a second insertion hole is formed in the bottom wall of the placement groove of the PH meter instrument table shell. When the PH meter instrument table shell is not used, the fixing frame can be directly taken down from the supporting rod, the supporting rod is contained in the containing groove of the base, finally, the PH meter instrument table shell containing the supporting rod and the fixing frame are placed in a containing bag or a containing box, and the occupied area of the PH meter instrument table shell is relatively small through the containing mode.

Description

Technical Field

[0001] This utility model relates to a pH meter, specifically a pH meter with a fixed support. Background Technology

[0002] A pH meter is an acid-base detector that uses a pH indicating electrode to determine the pH value of a solution using a potentiometric method. It is a precision electronic millivoltmeter specifically designed for use with ion-selective electrodes. Since the potential of the pH indicating electrode changes with the pH value of the solution, when the pH indicating electrode (such as a pH glass electrode) and the reference electrode (such as a saturated calomel electrode) are immersed in the solution to form a measuring cell, the electromotive force generated is related to the pH value of the solution.

[0003] Current pH meters generally consist of a pH meter stage, electrodes, and a mounting bracket. The mounting bracket is usually installed on the side of the pH meter stage housing. When in use, the electrodes are fixed to the mounting bracket. Many existing mounting brackets are connected to the pH meter stage housing and cannot be disassembled. Therefore, when not in use, the mounting bracket is still located on the side of the pH meter stage housing, which cannot be stored well and results in a large footprint. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem of providing a pH meter with a convenient storage and fixing bracket when not in use.

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

[0006] The device includes a pH meter instrument stage housing, electrodes, and a mounting bracket for fixing the electrodes. A base is connected to the bottom of the pH meter instrument stage housing. The base has a mounting groove. The mounting bracket includes a support rod rotatably connected to the lower end of the mounting groove and a fixing frame fitted onto the support rod and slidable along the support rod. The fixing frame has a slot for installing the electrodes. A limiting device is also connected to the fixing frame to limit its position on the support rod. The support rod is L-shaped and threaded with a limiting bolt. The pH meter instrument stage housing has a first insertion hole on its side that matches the limiting bolt, and a second insertion hole on the bottom wall of the mounting groove that matches the limiting bolt. When the support rod is not in use, it is stored in the mounting groove, and the bottom end of the limiting bolt passes through the support rod and is inserted into the second insertion hole. When the support rod is in use, it flips to the outside of the mounting groove and becomes vertical, the fixing bracket is fitted onto the support rod, and the bottom end of the limiting bolt passes through the support rod and is inserted into the first insertion hole.

[0007] The limiting device is a locking bolt; the locking bolt is threadedly connected to the fixing frame, and the bottom end of the locking bolt passes through the fixing frame and abuts against the side wall of the support rod.

[0008] A rotating shaft is installed below the end of the base; the support rod is rotatably connected to the rotating shaft.

[0009] The base has a third insertion hole with a through mounting groove at the lower end; the rotating shaft is inserted into the third insertion hole; the rotating shaft has limit ring grooves on both sides; the base has two limit seats that are detachably connected to the base and correspond to the two limit ring grooves respectively; the limit seats are engaged with the limit ring grooves corresponding to themselves.

[0010] The limiting seat is connected to the base by bolts.

[0011] The technical effect achieved by this utility model is as follows: When not in use, the pH meter with a fixed bracket can be loosened by loosening the locking bolts, and the fixed bracket can be directly removed from the support rod. Then, the limiting bolts are unscrewed, and the support rod is rotated to store the support rod in the placement groove of the base. Finally, the pH meter instrument platform housing with the support rod stored and the fixed bracket are placed in a storage bag or storage box. The fixed bracket adopts the above-mentioned disassembly and storage method, which has a relatively small footprint and is convenient for storage. 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 a schematic diagram of the structure of a pH meter with a fixed bracket according to this utility model;

[0014] Figure 2 This is an exploded view of a pH meter with a fixed support according to this utility model;

[0015] Figure 3 yes Figure 2 Enlarged view of part A;

[0016] Figure 4 yes Figure 2 Enlarged view of part B;

[0017] Figure 5 yes Figure 4 Enlarged view of part C;

[0018] Figure 6 This is an exploded view of the support rod being stored in the mounting slot;

[0019] Figure 7 yes Figure 6 Enlarged view of part D;

[0020] Figure 8 This is a structural diagram showing the support rod being housed in the mounting slot. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] See Figures 1 to 8 .

[0023] A pH meter with a fixed support includes a pH meter instrument housing 1, electrodes, and a fixed support for fixing the electrodes. A base 2 is connected to the bottom of the pH meter instrument housing 1, and a mounting groove 3 is provided on the base 2. The fixed support includes a support rod 4 rotatably connected to the lower end of the mounting groove 3 and a fixing frame 5 sleeved on the support rod 4 and slidable along the support rod 4. The fixing frame 5 has a slot 6 for installing the electrodes. Specifically, a rotating shaft 21 is installed at the lower end of the base 2, and the support rod 4 is rotatably connected to the rotating shaft 21. A third insertion hole 22 penetrating the mounting groove 3 is provided at the lower end of the base 2, and the rotating shaft 21 is inserted into the third insertion hole 22. Limiting ring grooves 23 are provided on both sides of the rotating shaft 21. Two limiting seats 24 corresponding to the two limiting ring grooves 23 are detachably connected to the base 2. The limiting seats 24 are engaged with the corresponding limiting ring grooves 23. More specifically, the limiting seats 24 are connected to the base 2 by bolts.

[0024] The support rod 4 of this utility model is rotatably connected to the shaft 21 and rotatably connected to the lower end of the mounting groove 3. The shaft 21 is connected in a detachable manner. When the shaft 21 is damaged, the two limit seats 24 can be removed by unscrewing the bolts between the two limit seats 24 and the base 2. Then the shaft 21 can be pulled out from the third insertion hole 22 for replacement, which is quite convenient.

[0025] The fixed frame 5 is also connected to a limiting device that limits itself to the support rod 4; specifically, the limiting device is a locking bolt 11, which is threadedly connected to the fixed frame 5, and the bottom end of the locking bolt 11 passes through the fixed frame 5 and abuts against the side wall of the support rod 4; in the installation of the fixed frame 5, the fixed frame 5 is sleeved on the support rod 4 and can slide along the support rod 4. When limiting is required, the locking bolt 11 is tightened. The locking bolt 11 limits the fixed frame 5 through the friction between itself and the side wall of the support rod 4.

[0026] Specifically, the support rod 4 is L-shaped; a limit bolt 7 is threaded onto the support rod 4; a first insertion hole 8 matching the limit bolt 7 is provided on the side of the pH meter instrument platform housing 1; a second insertion hole 9 matching the limit bolt 7 is provided on the bottom wall of the mounting groove 3 of the pH meter instrument platform housing 1; when the support rod 4 is not in use, first loosen the locking bolt 11, at which point the fixing bracket 5 can slide along the support rod 4, remove the fixing bracket 5 from the support rod 4, then rotate the support rod 4 to store the support rod 4 in the mounting groove 3, and install the limit bolt 7. The bottom end of the limit bolt 7 passes through the support rod 4 and is inserted into the second insertion hole 9 (at this time, the support rod 4 is limited and cannot rotate). Finally, place the pH meter instrument platform housing 1 with the support rod 4 stored and the fixing bracket 5 in a storage bag or storage box. The fixing bracket adopts the above disassembly and storage method, which has a relatively small footprint and is convenient for storage.

[0027] When using the support rod 4, first unscrew the limiting bolt 7, then flip the support rod 4 to the outside of the mounting groove 3, with the support rod 4 in a vertical position (see reference). Figure 1 Next, the fixing bracket 5 is put on the support rod 4 and the fixing bracket 5 is adjusted to the required height. Then, the locking bolt 11 is tightened. At this time, the fixing bracket 5 is limited. Finally, the upper limit bolt 7 is tightened. The bottom end of the upper limit bolt 7 passes through the support rod 4 and is inserted into the first insertion hole 8. At this time, the support rod 4 is limited and cannot be rotated. The fixing bracket can be used normally.

Claims

1. A pH meter with a fixing bracket, comprising a pH meter instrument stage housing (1), electrodes, and a fixing bracket for fixing the electrodes, characterized in that: The pH meter instrument stage housing (1) is connected to a base (2) below; the base (2) has a mounting groove (3); the fixed bracket includes a support rod (4) rotatably connected to the lower end of the mounting groove (3) and a fixed frame (5) sleeved on the support rod (4) and slidable along the support rod (4); the fixed frame (5) has a slot (6) for installing electrodes; the fixed frame (5) is also connected to a limiting device that limits itself to the support rod (4); the support rod (4) is L-shaped; the support rod (4) is threaded with a limiting bolt (7); the pH meter instrument stage housing (1) has a limiting device on its side. The first insertion hole (8) matches the bolt (7), and the bottom wall of the mounting groove (3) of the pH meter instrument platform housing (1) is provided with a second insertion hole (9) that matches the limiting bolt (7); when the support rod (4) is not in use, the support rod (4) is stored in the mounting groove (3), and the bottom end of the limiting bolt (7) passes through the support rod (4) and is inserted into the second insertion hole (9); when the support rod (4) is in use, the support rod (4) is flipped to the outside of the mounting groove (3), and the support rod (4) is vertical, the fixing bracket (5) is sleeved on the support rod (4), and the bottom end of the limiting bolt (7) passes through the support rod (4) and is inserted into the first insertion hole (8).

2. A pH meter with a fixed support according to claim 1, characterized in that: The limiting device is a locking bolt (11); the locking bolt (11) is threadedly connected to the fixing frame (5), and the bottom end of the locking bolt (11) passes through the fixing frame (5) and abuts against the side wall of the support rod (4).

3. A pH meter with a fixed support according to claim 1, characterized in that: A rotating shaft (21) is installed below the end of the base (2); the support rod (4) is rotatably connected to the rotating shaft (21).

4. A pH meter with a fixed support according to claim 3, characterized in that: The base (2) has a third insertion hole (22) with a through mounting groove (3) at the lower end; the rotating shaft (21) is inserted into the third insertion hole (22); the rotating shaft (21) has a limiting ring groove (23) on both sides; the base (2) has two limiting seats (24) that are respectively corresponding to the two limiting ring grooves (23) detachably connected; the limiting seat (24) is locked in the limiting ring groove (23) corresponding to itself.

5. A pH meter with a fixed support according to claim 4, characterized in that: The limiting seat (24) is connected to the base (2) by bolts.

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