Portable acidity meter
By incorporating a flip-up cover and a damping shaft into the benchtop pH meter, combined with an elastic mounting bracket and positioning holes, the portability issues of traditional benchtop pH meters are resolved, achieving both portability and protection for portable pH meters.
Patent Information
- Application Number
- CN202520104927.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Traditional benchtop pH meters are inconvenient to carry because their support frames take up a lot of space.
A portable pH meter was designed. By setting a flip-up cover and a damping shaft on the benchtop pH meter, combined with an elastic bracket and positioning holes, the test pen and data cable can be stored and fixed, forming a cuboid structure that is easy to carry.
The portability of the pH meter has been improved, making it easier to carry. By using a cover plate to align the display with the table, the portability of the traditional benchtop pH meter has been achieved, while protecting the display screen and control knob.
Smart Images
Figure CN223645366U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pH meter technology, specifically a portable pH meter. Background Technology
[0002] A pH meter, also known as an acid-base meter, is an instrument used to determine the acidity or alkalinity of a solution. It works on the principle of a galvanic cell. The electromotive force between the two electrodes of a galvanic cell, according to Nernst's law, depends on both the properties of the electrodes themselves and the concentration of hydrogen ions in the solution. There is a corresponding relationship between the electromotive force of the galvanic cell and the concentration of hydrogen ions. The negative logarithm of the hydrogen ion concentration is the pH value. A pH meter is a common analytical instrument widely used in agriculture, environmental protection, and industry. Soil pH is one of the important basic properties of soil. In the process of pH measurement, factors such as the temperature and ionic strength of the solution should be considered.
[0003] Most benchtop pH meters on the market are equipped with a support frame to fix the test pen. However, because the support frame takes up a lot of space, traditional benchtop pH meters are not convenient to carry. To address this issue, we have made technological innovations based on the existing pH meters. Utility Model Content
[0004] The purpose of this invention is to provide a portable pH meter to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable pH meter, comprising:
[0006] A benchtop pH meter has a groove on its left side that extends through the top of the meter. A cover plate is placed on the left side of the meter, and a connecting seat is located on the right side of the cover plate. A through hole is provided on the front side of the connecting seat, and a damping shaft is installed inside the through hole. The connecting seat is rotatably mounted in the groove, and the damping shaft is fixedly mounted in the groove. A storage groove is provided through the left side of the cover plate, and a flexible bracket is provided on the top of the inner wall of the storage groove. A first elastic bracket is provided at the bottom of the flexible bracket, and both the flexible bracket and the first elastic bracket are located within the storage groove.
[0007] Preferably, the benchtop pH meter has a pen slot on its rear side, and the inner sidewall of the pen slot is evenly provided with anti-slip pads. A test pen is inserted into the pen slot, and the outer sidewall of the test pen is in close contact with the outer sidewall of the anti-slip pads.
[0008] Preferably, a second elastic bracket is evenly arranged on the right side of the benchtop pH meter, and the data cable of the detection pen is clipped into the second elastic bracket, with the detection pen corresponding to the first elastic bracket.
[0009] Preferably, the connecting seat has two sets of first positioning holes and two sets of second positioning holes on both the front and rear sides. The two sets of first positioning holes are located on the left and right sides of the connecting seat through hole, and the two sets of second positioning holes are located on the upper and lower sides of the connecting seat through hole.
[0010] Preferably, the inner sidewall of the benchtop pH meter groove is provided with two sets of mounting holes on both the front and rear sides, and a spring is provided in the mounting hole, and a round-headed pin is provided on the outer sidewall of the spring.
[0011] Preferably, the rounded end of the rounded pin is inserted into the second positioning hole and corresponds to the first positioning hole.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This invention allows the testing pen to be stored in the pen slot, and the data cable of the testing pen to be neatly fixed on the right side of the benchtop pH meter via the second elastic bracket. The flexible bracket and the first elastic bracket can be stored in the storage slot, and then the cover plate can be flipped on the top of the benchtop pH meter. In this way, the entire device can be assembled and stored into a cuboid shape, thereby improving the portability of the device.
[0014] When the cover plate is flipped onto the top of the benchtop pH meter, the round-headed pin is inserted into the first positioning hole by a spring, thereby fixing the cover plate stably on the top of the benchtop pH meter. The cover plate also shields and protects the display screen and control knob of the benchtop pH meter. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a portable pH meter according to the present invention;
[0016] Figure 2 This is a left-side view of a portable pH meter according to the present invention;
[0017] Figure 3 This is a partial sectional view of the front side of a portable pH meter according to the present invention;
[0018] Figure 4 This is a partial cross-sectional view of the left side of a portable pH meter according to the present invention.
[0019] In the diagram: 1. Benchtop pH meter; 11. Cover plate; 12. Connecting seat; 121. First positioning hole; 122. Second positioning hole; 123. Spring; 124. Round head pin; 13. Flexible bracket; 14. First elastic bracket; 15. Second elastic bracket; 16. Detection pen; 17. Anti-slip pad; 18. Damping shaft. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4 A portable pH meter includes a benchtop pH meter 1. A groove is formed on the left side of the benchtop pH meter 1, extending through the top of the meter. A cover plate 11 is placed on the left side of the meter. A connecting seat 12 is fixedly mounted on the right side of the cover plate 11. A through hole is formed on the front side of the connecting seat 12, and a damping shaft 18 is rotatably mounted within the through hole. The cover plate 11 can be flipped left and right around the damping shaft 18. The connecting seat 12 is rotatably mounted within the groove, and the damping shaft 18 is fixed. The cover plate 11 has a storage slot extending through its left side, which is recessed within the groove. A flexible bracket 13 is fixedly mounted on the top of the inner wall of the storage slot, and a first elastic seat 14 is fixedly mounted on the bottom of the flexible bracket 13. Both the flexible bracket 13 and the first elastic seat 14 are located within the storage slot. By bending the flexible bracket 13 to the left, the first elastic seat 14 can be removed from the storage slot of the cover plate 11. The connecting seat 12 has two sets of first positioning holes 121 and two sets of second positioning holes 122 on both the front and rear sides. The two sets of first positioning holes 121 are located on the left and right sides of the through hole of the connecting seat 12, and the two sets of second positioning holes 122 are located on the upper and lower sides of the through hole of the connecting seat 12. The inner wall of the recess of the benchtop pH meter 1 has two sets of mounting holes on both the front and rear sides. A spring 123 is fixedly mounted in the mounting hole, and a round-headed pin 124 is fixedly mounted on the outer wall of the spring 123. The round head of the round-headed pin 124 is inserted into the second positioning hole 122 and corresponds to the first positioning hole 121. When the cover plate 11 is flipped open to the left, the round-headed pin 124 is inserted into the second positioning hole 122 by the spring 123, thereby fixing the opened cover plate 11. When the cover plate 11 is flipped open to the right and covers the top of the benchtop pH meter 1, the round-headed pin 124 is inserted into the first positioning hole 121 by the spring 123, thereby fixing the cover plate 11 stably on the top of the benchtop pH meter 1. The cover plate 11 protects the display screen and control knob of the benchtop pH meter 1.
[0022] A pen slot is provided on the rear side of the benchtop pH meter 1. Anti-slip pads 17 are evenly fixed on the inner side wall of the pen slot. A test pen 16 is inserted into the pen slot. The outer side wall of the test pen 16 is tightly fitted with the outer side wall of the anti-slip pads 17. The anti-slip pads 17 make the test pen 16 stably inserted into the pen slot of the benchtop pH meter 1. A second elastic bracket 15 is evenly provided on the right side of the benchtop pH meter 1. The data cable of the test pen 16 is clipped into the second elastic bracket 15. The data cable of the test pen 16 is neatly fixed on the right side of the benchtop pH meter 1 by the second elastic bracket 15. The test pen 16 corresponds to the first elastic bracket 14. The first elastic bracket 14 can clamp and fix the test pen 16.
[0023] Working principle: When the cover plate 11 is flipped open to the left, the spring 123 drives the round-headed pin 124 to insert into the second positioning hole 122, thereby fixing the opened cover plate 11. Bending the flexible bracket 13 to the left allows the first elastic retainer 14 to be removed from the storage slot of the cover plate 11. After the test pen 16 is pulled out of the pen slot of the benchtop pH meter 1, it can be locked into the first elastic retainer 14. When the device is not in use, the test pen 16 is inserted into the pen slot of the benchtop pH meter 1, and the anti-slip pad 17 ensures that the test pen 16 is stably inserted into the pen slot of the benchtop pH meter 1. The second elastic bracket 15 neatly fixes the data cable of the test pen 16 to the right side of the benchtop pH meter 1. Then, the flexible bracket 13 bends downward into the storage groove of the cover plate 11, thereby driving the first elastic bracket 14 to move into the storage groove. Then, the cover plate 11 flips to the right around the damping pivot 18 and covers the top of the benchtop pH meter 1. At this time, the spring 123 drives the round-headed pin 124 to insert into the first positioning hole 121, thereby stably fixing the cover plate 11 to the top of the benchtop pH meter 1. The cover plate 11 shields and protects the display screen and control knob of the benchtop pH meter 1.
Claims
1. A portable pH meter, characterized in that, include: A benchtop pH meter (1) has a groove on its left side that extends through the top of the benchtop pH meter (1). A cover plate (11) is placed on the left side of the benchtop pH meter (1). A connecting seat (12) is provided on the right side of the cover plate (11). A through hole is provided on the front side of the connecting seat (12). A damping shaft (18) is provided in the through hole. The connecting seat (12) is rotatably disposed in the groove. The damping shaft (18) is fixedly disposed in the groove. A storage groove is provided through the left side of the cover plate (11). A flexible bracket (13) is provided on the top of the inner wall of the storage groove. A first elastic bracket (14) is provided at the bottom of the flexible bracket (13). Both the flexible bracket (13) and the first elastic bracket (14) are located in the storage groove.
2. A portable pH meter according to claim 1, characterized in that: The benchtop pH meter (1) has a pen slot on its rear side. Anti-slip pads (17) are evenly arranged on the inner side wall of the pen slot. A detection pen (16) is inserted into the pen slot. The outer side wall of the detection pen (16) is in close contact with the outer side wall of the anti-slip pad (17).
3. A portable pH meter according to claim 2, characterized in that: The benchtop pH meter (1) has a second elastic bracket (15) evenly arranged on the right side. The data cable of the test pen (16) is inserted into the second elastic bracket (15). The test pen (16) corresponds to the first elastic bracket (14).
4. A portable pH meter according to claim 1, characterized in that: The connecting seat (12) has two sets of first positioning holes (121) and two sets of second positioning holes (122) on both the front and rear sides. The two sets of first positioning holes (121) are located on the left and right sides of the through hole of the connecting seat (12), and the two sets of second positioning holes (122) are located on the upper and lower sides of the through hole of the connecting seat (12).
5. A portable pH meter according to claim 4, characterized in that: The inner sidewall of the benchtop pH meter (1) has two sets of mounting holes on both the front and rear sides. A spring (123) is installed in the mounting hole, and a round-headed pin (124) is installed on the outer sidewall of the spring (123).
6. A portable pH meter according to claim 5, characterized in that: The rounded part of the rounded pin (124) is inserted into the second positioning hole (122) and corresponds to the first positioning hole (121).