Dentin permeability detection device

Abstract

The utility model belongs to the technical field of test equipment, and particularly relates to a dentin permeability detection device which comprises an upper outer box body and a punching sheet, a water column chuck, a clamping seat and a base are fixedly arranged on the upper end face of the upper outer box body, a water column box is fixedly and movably arranged on the inner surface of the water column chuck, and a water outlet is formed in the outer surface of the water column box. A clamping ring is fixedly installed on the clamping base, and an inner ring squeezer is movably installed on the inner surface of the chuck. According to the utility model, the inner ring extruder, the punching sheet and the rubber convex block are arranged, the elasticity of the rubber convex block is utilized to ensure that the punching sheet does not leak water during the extrusion of the inner ring extruder, the test is ensured to be carried out smoothly, the punching sheet is installed independently, and the applicability of the device is improved; the levelness of the micropipette can be further adjusted, it is ensured that the micropipette can be in a horizontal state, meanwhile, different micropipettes can be replaced, and the applicability of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a dentin permeability detection device. Background Technique

[0002] As the main component of teeth, the permeability of dentin is crucial for the health and function of teeth. The detection of dentin permeability can help researchers study tooth diseases. The principle of the dentin permeability detection device is that there are a large number of dentinal tubules in dentin. Under the action of hydraulic pressure, the liquid has a tendency to flow from one end of the dentinal tubule to the other end, so that the air bubbles injected into the microtube will move along with the flow of the liquid. By recording the distance that the air bubbles move within a unit time, the permeability of dentin can be calculated. Therefore, the fixation and sealing of the dentin placement position in the dentin permeability detection device are particularly important. If the position of the dentin moves or leaks during measurement, it will cause large measurement errors, and the fixation of the measurement tool, the microtube, will also affect the measurement data. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a dentin permeability detection device, which solves the problems of poor fixity of dentin samples and poor sealing at the fixation position, and ensures that the microtube always maintains a horizontal state.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A dentin permeability detection device, including an outer box body, an upper outer box body and a punching piece. On the upper end surface of the upper outer box body, a water column chuck, a clamping seat and a base are fixedly installed. Inside the inner surface of the water column chuck, a water column box is fixedly and movably installed. On the outer surface of the water column box, a water outlet is provided. On the clamping seat, a clamping ring is fixedly installed. Inside the inner surface of the clamping ring, an inner ring squeezer is movably installed. On one side of the inner ring squeezer, an outer ring fixator is fixedly installed. Near one end of the inner ring squeezer close to the outer ring fixator, a water pipe joint is provided. At the end of the inner ring squeezer away from the original water pipe joint, a rubber bump is provided. The water pipe joint, the outer ring fixator, the inner ring squeezer and the clamping ring are evenly distributed on the clamping seat with the outer symmetry axis of the punching piece. On the upper end surface of the base, a fixing seat is fixedly installed. The fixing seat is linearly installed on the upper end surface of the base. Inside the inner surface of the fixing seat, a microtube is fixedly installed. At one end of the microtube away from the water outlet pipe, a micropore is provided. Between two fixing seats of the microtube close to the clamping seat, an air injection pipe is provided. The air injection pipe is fixedly installed on the outer surface of the microtube.

[0005] As a preferred technical scheme of the utility model, a micro printer and a display screen are fixedly installed on the inclined surface of the upper outer box body, and a test switch is provided on the upper outer box body.

[0006] As a preferred technical solution of the present utility model, a data external interface and a power supply are provided on the side surface of the outer box body, and an upper outer box body is fixedly installed on the upper end surface of the outer box body.

[0007] As a preferred technical solution of the present utility model, the water outlet is connected to the water pipe joint near the water column box through a water pipe, and the water pipe joint at the end far from the water column box is connected to the water inlet of the microtube through a water pipe.

[0008] Compared with the prior art, the present utility model has the following beneficial effects:

[0009] 1. In this utility model, by setting the inner ring extruder, the punching piece and the rubber bump, the elasticity of the rubber bump can ensure that the punching piece will not leak water during the extrusion of the inner ring extruder, ensuring the smooth progress of the test. Moreover, the rubber bump is very convenient to replace, and the punching piece can be installed separately, so that dentin slices of different sizes and specifications can be realized, improving the applicability of the device.

[0010] 2. In this utility model, by setting the fixing seat and the microtube, the fixing seat adopts an upper and lower clamping structure, which can further adjust the levelness of the microtube, solve the problem of unevenness caused by the ground, part processing, device assembly, etc. during the installation of the device, ensure that the microtube can be in a horizontal state, avoid affecting data collection, and at the same time, different microtubes can be replaced, further improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a schematic diagram of the fixing position of the microtube of the present utility model;

[0013] Figure 3 is a schematic structural diagram of the sample fixing position of the present utility model;

[0014] Figure 4 is a front view schematic diagram of the structure of the sample fixing position of the present utility model;

[0015] Figure 5 is a left view schematic diagram of the structure of the fixing position of the present utility model;

[0016] Figure 6 is a sectional view taken along line A-A of the structure of the fixing position of the present utility model.

[0017] In the figure: 1. Outer box body; 2. Water column chuck; 3. Water outlet; 4. Upper outer box body; 5. Water column box; 6. Micro printer; 7. Display screen; 8. Data external interface; 9. Power supply; 10. Microtube; 11. Injection pipe; 12. Fixed seat; 13. Base; 14. Clamping seat; 15. Water pipe joint; 16. Outer ring fixator; 17. Inner ring extruder; 18. Snap ring; 19. Punching sheet; 20. Test switch; 21. Rubber bump. Detailed implementation manner

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment

[0020] Please refer to Figure 1-6 , the present invention provides the following technical solutions: A dentin permeability detection device includes an outer box body 1, an upper outer box body 4 and a punching sheet 19. The upper end surface of the upper outer box body 4 is fixedly installed with a water column chuck 2, a clamping seat 14 and a base 13. The inner surface of the water column chuck 2 is fixedly and movably installed with a water column box 5. The outer surface of the water column box 5 is provided with a water outlet 3. A snap ring 18 is fixedly installed on the clamping seat 14. The inner surface of the snap ring 18 is movably installed with an inner ring extruder 17. One side of the inner ring extruder 17 is fixedly installed with an outer ring fixator 16. One end of the inner ring extruder 17 close to the outer ring fixator 16 is provided with a water pipe joint 15. One end of the inner ring extruder 17 away from the water pipe joint 15 is provided with a rubber bump 21. The water pipe joint 15, the outer ring fixator 16, the inner ring extruder 17 and the snap ring 18 are evenly distributed on the clamping seat 14 with the outer symmetry axis of the punching sheet 19. The upper end surface of the base 13 is fixedly installed with a fixed seat 12. The fixed seat 12 is linearly installed on the upper end surface of the base 13. The inner surface of the fixed seat 12 is fixedly installed with a microtube 10. One end of the microtube 10 away from the water outlet pipe is provided with a micropore. A gas injection pipe 11 is arranged between two fixed seats 12 of the microtube 10 close to the clamping seat 14. The gas injection pipe 11 is fixedly installed on the outer surface of the microtube 10.

[0021] In this implementation, the outer upper casing 4 provides support for the water column chuck 2, the clamping seat 14, and the base 13. The water column chuck 2 provides support for the water column box 5, enabling the water column box 5 to always remain vertical. The water outlet 3 allows the water in the water column box 5 to drain smoothly. The clamping seat 14 provides support for the snap ring 18, and the snap ring 18 provides support for the inner ring squeezer 17 and a fixed guiding function for the movement of the inner ring squeezer 17. The outer ring fixator 16 provides a fixing function for the water pipe joint 15, ensuring that the water discharged from the water outlet 3 can stably enter the water pipe joint 15. The rubber bump 21 and the inner ring squeezer 17 can firmly fix it, ensuring that the water flow can stably pass through the test mold on the punching piece 19 and ensuring the accuracy of the test data. The base 13 provides a supporting and fixing function for the fixing seat 12, and the fixing seat 12 can firmly fix the microtube 10, ensuring that the microtube 10 is in a horizontal state. At the same time, the fixing seat 12 adopts an upper and lower clamping structure, enabling the staff to replace the microtube 10. Thus, microtubes 10 of different sizes and specifications can be selected, greatly improving the applicability of the device, and an appropriate microtube 10 can be selected for different tests, ensuring the accuracy of the test data. The micropores on the microtube 10 can drain the water flow in the microtube 10, ensuring that the water in the microtube 10 is always in a flowing state. The air injection pipe 11 facilitates the staff to inject air bubbles into the microtube 10 and observe the movement state of the water bubbles, thereby observing the movement distance of the water flow in the microtube 10. The staff can use the distance and time of the bubble movement to calculate the permeability of the test mold.

[0022] Specifically, a micro printer 6 and a display screen 7 are fixedly installed on the inclined surface of the outer upper casing 4, and a test switch 20 is provided on the outer upper casing 4.

[0023] In this embodiment, the outer upper casing 4 provides support for the micro printer 6, the display screen 7, and the test switch 20. The staff can start the test time through the test switch 20, the display screen 7 will present the corresponding test data, and the micro printer 6 can print out the corresponding data for the staff to retain and verify.

[0024] Specifically, a data external interface 8 and a power supply 9 are provided on the side of the outer casing 1, and the outer upper casing 4 is fixedly installed on the upper end surface of the outer casing 1.

[0025] In this embodiment, the outer casing 1 provides support for the data external interface 8 and the power supply 9. The data external interface 8 can be connected to external devices, and the power supply 9 provides power support for the entire device. The outer casing 1 and the outer upper casing 4 form a closed space, thereby protecting the internal devices of the device and ensuring the normal operation of the device.

[0026] Specifically, the water outlet 3 is connected to the water pipe joint 15 on the side close to the water column tank 5 through a water pipe, and the water pipe joint 15 at the end far from the water column tank 5 is connected to the water inlet of the microtube 10 through a water pipe.

[0027] In this embodiment, the water outlet 3 is connected to the water pipe joint 15 on the side close to the water column tank 5 through a water pipe to ensure that the water flow in the water column tank 5 can flow stably at the wafer punching 19 of the device. The water pipe joint 15 at the end far from the water column tank 5 is connected to the water inlet of the microtube 10 through a water pipe to ensure that the water flow passing through the wafer punching 19 can stably enter the microtube 10.

[0028] The working principle and usage process of the present utility model: The staff uses the inner ring squeezer 17 to squeeze the rubber bumps 21 together, starts the device, and the water column tank 5 starts to fill with water. The water outlet 3 sends the water flow to the test area. When there is a stable water flow flowing out of the micropores of the microtube 10, the staff installs the dentin slice on the wafer punching 19, and then installs the wafer punching 19 between the two rubber bumps 21. When installing, the staff can insert while rotating the inner ring squeezer 17 outwards. When the center point on the wafer punching 19 is aligned with the center point of the rubber bump 21, immediately tighten the inner ring squeezer 17 to drive the rubber bump 21 to fix the wafer punching 19. The rubber bump 21 can ensure that there is no water leakage when the water flow passes through the wafer punching 19, ensuring the accuracy of the test data. After installing the wafer punching 19, when the water flow in the microtube 10 is stable, the staff injects air bubbles into the microtube 10 through the air injection pipe 11. After injecting the air bubbles, the staff presses the test switch 20, and the device starts to record data. When the desired test data is obtained, the staff presses the test switch 20 again, and the test ends. The micro printer 6 can print out the relevant data for the staff to keep.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A dentin permeability detection device, comprising an outer box (1), an upper outer box (4) and a punching sheet (19), characterized in that: The upper end surface of the upper outer box body (4) is fixedly mounted with a water column chuck (2), a clamping seat (14) and a base (13); the inner surface of the water column chuck (2) is fixedly and movably mounted with a water column box (5); the outer surface of the water column box (5) is provided with a water outlet (3); a clamping ring (18) is fixedly mounted on the clamping seat (14); an inner ring extruder (17) is movably mounted on the inner surface of the clamping ring (18); an outer ring fixer (16) is fixedly mounted on one side of the inner ring extruder (17); a water pipe joint (15) is provided at one end of the inner ring extruder (17) close to the outer ring fixer (16); a rubber bump (15) is provided at one end of the original water pipe joint (15) of the inner ring extruder (17) 21), the water pipe joint (15), the outer ring fixer (16), the inner ring squeezer (17) and the clamping ring (18) are evenly distributed on the clamping seat (14) with the outer symmetry axis of the punching sheet (19), the upper end surface of the base (13) is fixedly mounted with a fixing seat (12), the fixing seat (12) is linearly mounted on the upper end surface of the base (13), the inner surface of the fixing seat (12) is fixedly mounted with a micro-tube (10), the end of the micro-tube (10) away from the water outlet pipe is provided with a micro hole, and the micro-tube (10) is provided with an air injection pipe (11) between the two fixing seats (12) close to the clamping seat (14), and the air injection pipe (11) is fixedly mounted on the outer surface of the micro-tube (10).

2. A dentin permeability detection device according to claim 1, characterized in that: A micro printer (6) and a display screen (7) are fixedly mounted on the inclined surface of the upper outer box (4), and a test switch (20) is provided on the upper outer box (4).

3. A dentin permeability detection device according to claim 1, characterized in that: The side surface of the outer box (1) is provided with an external data interface (8) and a power source (9), and the upper end surface of the outer box (1) is fixedly mounted with an upper outer box (4).

4. A dentin permeability detection device according to claim 1, characterized in that: The water outlet (3) is connected to a water pipe joint (15) on one side close to the water column box (5) through a water pipe, and the water pipe joint (15) on one end away from the water column box (5) is connected to a water inlet of the micro-tube (10) through a water pipe.

Images