Pressing type pH test paper pen
By designing a press-type pH test paper pen, the problem of pH test paper deformation in humid environments and inaccurate measurements caused by direct contact was solved. It achieves moisture-proof and anti-bending/tear-proof functions, ensuring measurement accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-04-07
AI Technical Summary
pH test strips are susceptible to moisture when not in use, and are prone to deformation or tearing when in use. Furthermore, direct contact with hand oils can lead to inaccurate measurements.
Design a press-type pH test paper pen, which includes a paper storage tube, a hollow tube, a spring, a telescopic ring, a clip, and other structures. The paper is dispensed by pressing to avoid direct contact and bending. A transparent tube and a water-blocking strip are used for moisture protection, and a buffer layer and a paper-dispensing blade are set to prevent tearing.
It effectively prevents pH test strips from getting damp, avoids bending and tearing, ensures measurement accuracy, and simplifies the operation process.
Smart Images
Figure CN224095698U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pH detection technology, specifically to a press-type pH test paper pen. Background Technology
[0002] Currently, pH test strips are commonly used to measure the pH value of solutions in chemical experiments. However, pH test strips often have the following problems in practical applications:
[0003] 1. When pH test strips are not in use, a humid environment can affect them, causing them to deform or tear due to moisture, thus affecting the accuracy of pH test strip measurements.
[0004] 2. During the use of pH test strips, people often touch the test strips directly with their hands. Hands usually have sweat or oil, which causes the pH test strips to change color prematurely, affecting the accuracy of pH test strip measurements.
[0005] 3. During use, pH test strips may be bent or torn, which can damage the strips and affect the accuracy of pH measurements.
[0006] Therefore, there is an urgent need for a press-type pH test paper pen to solve the above problems. Utility Model Content
[0007] The purpose of this invention is to solve the problems existing in the background art and provide a press-type pH test paper pen.
[0008] The technical solution of this utility model is as follows:
[0009] A press-type pH test paper pen includes a pen casing, a paper storage tube disposed inside the pen casing, a pen cap covering one end of the paper storage tube extending to the top of the pen casing, a hollow tube disposed at the bottom of the other end of the paper storage tube, a first step disposed on the inner side of the pen casing below the hollow tube, a hollow ring disposed on the first step, a telescopic ring with one end connected to the bottom of the hollow tube and the other end connected to a locking ring disposed in the first step, a spring sleeved outside the telescopic ring with one end connected to the bottom of the hollow tube and the other end connected to the hollow ring, a latch disposed in the telescopic ring with one end connected to the bottom of the hollow tube and the other end extending into the locking ring, a second step disposed below the first step for limiting the locking ring, a rubber ring disposed in the second step, and a paper output tube disposed below the rubber ring and connected to the bottom of the pen casing. The hollow tube, the latch, the rubber ring, and the paper output tube all have channels for pH test paper to pass through.
[0010] Preferably, the paper outlet of the paper tube is provided with a serrated blade.
[0011] Preferably, the paper feed end of the rubber ring is trumpet-shaped.
[0012] Preferably, a buffer layer is provided on the contact surface between the card head and the pH test paper.
[0013] Preferably, the buffer layer is made of plastic or sponge.
[0014] Preferably, the surface of the pen casing has a slot for placing a standard colorimetric card.
[0015] Preferably, the pen casing and the paper storage tube are transparent tubes.
[0016] Preferably, the pH test paper is elongated.
[0017] Preferably, the elongated pH test paper has water-blocking strips arranged at preset intervals.
[0018] Preferably, the pH test paper also has a partition at the water-blocking section.
[0019] According to the above technical solution, based on this press-type pH test paper pen, when not measuring the pH value of the solution, storing the pH test paper in the storage tube can effectively prevent the humid environment from affecting the pH test paper. Through the combined action of the hollow tube, spring, telescopic ring, hollow ring, first step, locking ring, clip, second step, rubber ring and paper outlet tube, in practical applications, when it is necessary to use the pH test paper to detect the pH value of the solution, the paper can be pressed out as needed, and then the solution can be dipped onto the pressed-out pH test paper, thereby avoiding direct contact with the pH test paper by hand or bending or tearing the pH test paper, which would affect the accuracy of the pH test paper measurement. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of a press-type pH test paper pen.
[0021] Explanation of reference numerals in the attached figures
[0022] 1. Pen cap; 2. Paper storage tube; 3. Pen casing; 4. pH test paper; 5. Hollow tube; 6. Spring; 7. Telescopic ring; 8. Hollow ring; 9. First step; 10. Locking ring; 11. Clip; 12. Second step; 13. Rubber ring; 14. Paper output tube. Detailed Implementation
[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.
[0024] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean a non-exclusive inclusion, the possibility of the presence or addition of one or more other features, units, components, and / or combinations thereof.
[0025] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] This invention provides a press-type pH test paper pen, such as... Figure 1 As shown, the press-type pH test paper pen includes a pen shell 3, a paper storage tube 2 coaxially disposed inside the pen shell 3, a pen cap 1 covering the top end of the paper storage tube 2 extending to the outside of the pen shell 3, a hollow tube 5 disposed at the bottom of the other end of the paper storage tube 2, a first step 9 disposed on the inner side of the pen shell 3 below the hollow tube 5, a hollow ring 8 disposed on the first step 9, a telescopic ring 7 with one end connected to the bottom of the hollow tube 5 and the other end connected to a locking ring 10 disposed in the first step 9, and a sleeved outer part of the telescopic ring 7 with one end connected to the bottom of the hollow tube 5. A spring 6, connected at one end to the hollow ring 8, is disposed within the telescopic ring 7 and connected at one end to the bottom of the hollow tube 5, with the other end extending to the locking ring 10. A second step 12, located below the first step 9, is used to limit the locking ring 10. A rubber ring 13, located within the second step 12, is disposed below the rubber ring 13 and connected to the bottom of the pen shell 3. A paper output tube 14, located below the rubber ring 13 and connected to the bottom of the pen shell 3, is provided. The hollow tube 5, the clip 11, the rubber ring 13, and the paper output tube 14 all have channels for the pH test paper 4 to pass through. The clip 11 can also be divided into two parts: an upper part is a paper guide tube, and a lower part is a clamping head; that is, the upper part facilitates the entry of the pH test paper, and the lower part is used to clamp and push the pH test paper.
[0027] According to the above technical solution, based on this press-type pH test paper pen, when not measuring the pH value of the solution, storing the pH test paper in the storage tube can effectively prevent the humid environment from affecting the pH test paper. Through the combined action of the hollow tube, spring, telescopic ring, hollow ring, first step, locking ring, clip, second step, rubber ring and paper outlet tube, in practical applications, when it is necessary to use the pH test paper to detect the pH value of the solution, the paper can be pressed out as needed, and then the solution can be dipped onto the pressed-out pH test paper, thereby avoiding direct contact with the pH test paper by hand or bending or tearing the pH test paper, which would affect the accuracy of the pH test paper measurement.
[0028] In the press-type pH test paper pen of this utility model, preferably, the paper outlet of the paper tube 14 is provided with a blade, more preferably a serrated blade, so that the pH test paper 4 can be cut as needed.
[0029] To prevent the solution from seeping into the unpressed pH test paper 4 when it is applied, thus avoiding waste, the pH test paper 4 is preferably elongated. More preferably, the elongated pH test paper 4 has water-blocking bands at predetermined intervals, specifically, the length of the water-blocking bands is 0.5-2 mm, preferably 0.5-1.5 mm, and most preferably 1 mm. Even more preferably, the pH test paper 4 has dotted lines separating the water-blocking bands. Specifically, for example, according to actual measurement needs, 1 mm water-blocking bands can be set every 4 mm on the elongated pH test paper 4, and dotted lines can be set at the edges of the water-blocking bands, dividing the elongated pH test paper 4 into several small detection units. Thus, in practical applications, whenever the pH value of the solution needs to be measured, a small detection unit can be pressed out, and after the measurement is completed, the used detection unit can be cut off along the dotted lines. Preferably, as... Figure 1 As shown, the axial length of the first step 9 is 5mm, so that a small detection unit can be pressed out with one press.
[0030] In the press-type pH test paper pen of this utility model, preferably, the paper feed end of the rubber ring 13 is trumpet-shaped, thereby facilitating the insertion of the pH test paper 4 and preventing the pH test paper from retracting in the opposite direction. The function of the rubber ring 13 is to use the friction between the pH test paper 4 and the rubber to clamp the pH test paper 4, preventing the pH test paper 4 from retracting under the action of the locking ring 10 and the clip 11 when pressing stops.
[0031] In the press-type pH test paper pen of this utility model, preferably, a buffer layer is provided on the contact surface between the clip 11 and the pH test paper 4 to prevent the pH test paper 4 from bending when it is pushed forward. More preferably, both ends of the pH test paper 4 are provided with plastic edging, and corresponding partitions are provided at the dotted line intervals of the pH test paper 4, so that the pH test paper 4 can be pressed out more quickly without bending it. Alternatively, the pH test paper 4 can be processed into a long strip with a certain thickness. Specifically, the buffer layer is made of plastic or sponge.
[0032] In the press-type pH test paper pen of this utility model, preferably, the pen shell 3 and the paper storage tube 2 are transparent tubes, so that in actual application, the pH test paper 4 can be replaced in a timely manner according to the length of consumption.
[0033] More preferably, the surface of the pen casing 3 is provided with a slot for placing a standard colorimetric card, so that in practical applications, the standard colorimetric card can be installed in the slot, thereby facilitating the determination of the pH value of the solution based on the color development results.
[0034] In this invention, the working principle and usage of the press-type pH test paper pen are as follows: When the pen cap 1 is not pressed, the hollow ring 8 is blocked by the first step 9, and the pH test paper 4, hollow tube 5, spring 6, telescopic ring 7, locking ring 10, and clip 11, which are directly or indirectly connected to the hollow ring 8, will also be unable to move forward. When the pen cap 1 is pressed, the force of the pen cap 1 and the paper storage tube 2 pressing forward will compress the spring 6. After the spring 6 is compressed, the hollow tube 5, telescopic ring 7, locking ring 10, clip 11, and pH test paper, which are directly or indirectly connected to it, will also move forward. When the locking ring 10 advances 5mm to the second step 12, it stops moving forward due to the obstruction of the second step 12. At the same time, the telescopic ring 7 begins to compress slightly, allowing the semi-circular clamp 11 to continue moving forward and lose the locking effect of the locking ring 10. This results in the loss of clamping force on the pH test paper 4, causing the pH test paper 4 to stop moving forward without the clamp 11. At this point, the paper length of the pH test paper is 5mm. After pressing, the spring 6 rebounds, causing the telescopic ring 7, locking ring 10, and clamp 11 to move back. When the telescopic ring 7 returns to its uncompressed state, the clamp 11 will re-enter the locking ring 10 and be locked, thus clamping the pH test paper again.
[0035] The present invention will be described in detail below through embodiments, but the scope of protection of the present invention is not limited thereto.
[0036] Example 1
[0037] Adopting such Figure 1The press-type pH test pen shown is used for measuring the pH value of a solution. Specifically, the press-type pH test pen includes a pen shell 3, a paper storage tube 2 disposed inside the pen shell 3, a pen cap 1 covering one end of the paper storage tube 2 extending to the top of the pen shell 3, a hollow tube 5 disposed at the bottom of the other end of the paper storage tube 2, a first step 9 disposed on the inner side of the pen shell 3 below the hollow tube 5, a hollow ring 8 disposed on the first step 9, a telescopic ring 7 with one end connected to the bottom of the hollow tube 5 and the other end connected to a locking ring 10 disposed in the first step 9, and a loop fitted over the telescopic ring 7. A spring 6, with one end connected to the bottom of the hollow tube 5 and the other end connected to the hollow ring 8, is disposed within the telescopic ring 7 and has one end connected to the bottom of the hollow tube 5 and the other end extending into the locking ring 10. A second step 12, disposed below the first step 9, is used to limit the locking ring 10. A rubber ring 13 is disposed within the second step 12. A paper output tube 14, disposed below the rubber ring 13 and connected to the bottom of the pen shell 3, is provided. The hollow tube 5, the clip 11, the rubber ring 13, and the paper output tube 14 are all provided with channels for the pH test paper 4 to pass through.
[0038] In practical application, first open the pen cap 1 and press the paper storage tube 2, so that the pH test paper 4 passes through the hollow tube 5, the clamp 11 and the rubber ring 13 in sequence. Then, loosen the paper storage tube 2, put on the pen cap 1, and press the pen cap 1 again. The force of the pen cap 1 and the paper storage tube 2 pressing forward compresses the spring 6. After the spring 6 is compressed, the hollow tube 5, the telescopic ring 7, the locking ring 10, the clamp 11 and the pH test paper, which are directly or indirectly connected to it, move forward. When the locking ring 10 advances 5mm and reaches the second step 12, the locking ring 10 is blocked by the second step 12 and no longer moves forward. At the same time, the telescopic ring 7 begins to compress slightly, so that the semi-circular clamp 11 can still advance and lose the locking effect of the locking ring 10, thus losing the clamping force on the pH test paper 4. As a result, the pH test paper 4 will stop moving forward without the drive of the clamp 11. At this time, the paper length of the pH test paper is 5mm. When the pen cap 1 is no longer pressed, the spring 6 rebounds, causing the telescopic ring 7, locking ring 10, and clamp 11 to move back. When the telescopic ring 7 rebounds to the uncompressed state, the clamp 11 will re-enter the locking ring 10 and be locked, thereby clamping the pH test paper again.
[0039] Testing has shown that the press-type pH test paper pen described in this invention allows for rapid paper dispensing as needed in practical applications, facilitating pH value testing of solutions. It also offers advantages such as preventing the pH test paper from getting damp and avoiding direct hand contact with the paper, as well as bending or tearing the paper, which could affect the accuracy of pH measurements.
[0040] Example 2
[0041] Referring to Embodiment 1, the difference is that the paper outlet of the paper tube 14 is provided with a serrated blade, the paper inlet of the rubber ring 13 is trumpet-shaped, the contact surface between the card head 11 and the pH test paper 4 is provided with a buffer layer, the buffer layer is made of sponge, the surface of the pen shell 3 is provided with a slot for placing a standard colorimetric card, and the pen shell 3 and the paper storage tube 2 are transparent tubes.
[0042] Testing has shown that the press-type pH test paper pen described in this invention allows for faster paper dispensing in practical applications, making it easier to test the pH value of a solution. It also has the advantages of preventing the pH test paper from getting damp and avoiding direct contact with the paper by hand, as well as bending or tearing the paper, which could affect the accuracy of pH measurements.
[0043] Example 3
[0044] The implementation follows the same procedure as Example 2, except that the pH test paper 4 is elongated and strip-shaped. Water-blocking bands are provided on the elongated pH test paper 4 at preset intervals, and a partition is also provided at the water-blocking bands of the pH test paper 4.
[0045] Testing has shown that the press-type pH test paper pen described in this invention allows for faster paper dispensing in practical applications, making it easier to test the pH value of a solution. It also has the advantages of preventing the pH test paper from getting damp and avoiding direct contact with the paper by hand, as well as bending or tearing the paper, which could affect the accuracy of pH measurements.
[0046] The press-type pH test paper pen provided by this utility model effectively prevents the pH test paper from being affected by a humid environment by storing the pH test paper in the paper storage tube when not measuring the pH value of the solution. Through the combined action of the hollow tube, spring, telescopic ring, hollow ring, first step, locking ring, clip, second step, rubber ring and paper outlet tube, in practical applications, when it is necessary to use the pH test paper to test the pH value of the solution, the paper can be pressed out as needed, and then the solution can be dipped onto the pressed-out pH test paper. This avoids direct contact with the pH test paper by hand or bending or tearing the pH test paper, which would affect the accuracy of the pH test paper measurement.
[0047] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.
Claims
1. A press-type pH test paper pen, characterized in that, The press-type pH test paper pen includes a pen casing (3), a paper storage tube (2) disposed inside the pen casing (3), a pen cap (1) covering the top end of the paper storage tube (2) extending outside the pen casing (3), a hollow tube (5) disposed at the bottom of the other end of the paper storage tube (2), a first step (9) disposed on the inner side of the pen casing (3) below the hollow tube (5), a hollow ring (8) disposed on the first step (9), a telescopic ring (7) with one end connected to the bottom of the hollow tube (5) and the other end connected to a locking ring (10) disposed in the first step (9), and a telescopic ring (7) sleeved on the outside of the telescopic ring (7) with one end connected to the bottom of the hollow tube (5). A spring (6) connected to the hollow ring (8) at one end is located inside the telescopic ring (7) and one end is connected to the bottom of the hollow tube (5), while the other end extends to the locking ring (10). A second step (12) located below the first step (9) is used to limit the locking ring (10). A rubber ring (13) located inside the second step (12) is located below the rubber ring (13) and connected to the bottom of the pen shell (3). The hollow tube (5), the locking ring (11), the rubber ring (13) and the paper output tube (14) are all provided with channels for the pH test paper (4) to pass through.
2. The press-type pH test paper pen according to claim 1, characterized in that, The paper outlet of the paper tube (14) is provided with a serrated blade.
3. The press-type pH test paper pen according to claim 1, characterized in that, The paper feed end of the rubber ring (13) is trumpet-shaped.
4. The press-type pH test paper pen according to claim 1, characterized in that, A buffer layer is provided on the contact surface between the card head (11) and the pH test paper (4).
5. The press-type pH test paper pen according to claim 4, characterized in that, The buffer layer is made of plastic or sponge.
6. The press-type pH test paper pen according to claim 1, characterized in that, The surface of the pen casing (3) is provided with a slot for placing a standard colorimetric card.
7. The press-type pH test paper pen according to claim 1, characterized in that, The pen casing (3) and the paper storage tube (2) are transparent tubes.
8. The press-type pH test paper pen according to claim 1, characterized in that, The pH test paper (4) is long and narrow.
9. The press-type pH test paper pen according to claim 8, characterized in that, The long strip of pH test paper (4) has water-blocking strips at preset intervals.
10. The press-type pH test paper pen according to claim 9, characterized in that, The pH test paper (4) also has a partition at the water-blocking strip.