Hydrogel adhesion testing device for dental ulcer patch

Abstract

The utility model provides a hydrogel adhesion testing device for an oral ulcer patch. The hydrogel adhesion testing device comprises a base, a placement seat is fixed on the base, a patch body is placed on the placement seat, a positioning mechanism is arranged on the side of the placement seat, and a testing mechanism is connected above the placement seat in a lifting and sliding manner. The patch body is moved and positioned to the position under the testing mechanism through the positioning mechanism, alignment of the testing mechanism during testing is facilitated, meanwhile, the probe makes contact with hydrogel on the surface of the patch body through downward movement of the moving block, and certain pressure is applied. The pressure sensor starts to record the contact pressure and feeds back the numerical value of the contact pressure to the controller, the controller processes and stores the fed-back pressure, then the moving block moves upwards, the probe is separated upwards at a constant speed, and at the moment, the pressure sensor records the maximum pulling force in the separation process, namely the adhesive force; and the controller also processes and stores the adhesive force, so that the effect of testing the adhesion of the patch body is achieved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogel adhesion testing technology, specifically an adhesion testing device for hydrogel patches for oral ulcers. Background Technology

[0002] Oral ulcers are characterized by persistent necrosis and sloughing of the oral mucosa, forming depressions, and affect 20% of the world's population. Recurrent oral ulcers can directly impact the body's immune function, leading to various complications and even cancer. Oral health has been identified by the World Health Organization as one of the ten standards of human health.

[0003] With the continuous expansion of the oral ulcer patch market and the increasing demands of consumers for product quality, hydrogel adhesion testing devices are playing an increasingly important role in the quality control, product development, and market competition of oral ulcer patches. By accurately measuring the adhesion performance of the patches, the stability and effectiveness of the products in actual use can be ensured, thereby improving consumer satisfaction and trust.

[0004] Currently, most oral ulcer patches use hydrogel as an adhesive, utilizing its adhesive properties to fix the patch inside the oral cavity, allowing it to directly act on the affected area. In this process, the adhesive properties of the hydrogel play a crucial role. To accurately evaluate the adhesiveness of hydrogel patches, this invention provides an adhesion testing device for oral ulcer hydrogel patches, solving the problem that traditional adhesion testing devices are unsuitable for testing the adhesion characteristics of oral ulcer hydrogel patches, and providing reliable technical support for product quality control. Utility Model Content

[0005] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a hydrogel adhesion testing device for oral ulcer patches.

[0006] This utility model is achieved by the following solution: a hydrogel adhesion testing device for oral ulcer patches: including a base, a placement seat fixed on the base, a patch body placed on the placement seat, a positioning mechanism provided on the side of the placement seat, and a testing mechanism that is lifted and slidably connected above the placement seat.

[0007] Furthermore, the testing mechanism includes a pressure sensor, a probe is provided below the pressure sensor corresponding to the patch body, and a lifting mechanism for driving the testing mechanism to rise and fall is provided on the side of the placement seat.

[0008] Furthermore, the lifting mechanism includes a lifting bracket, a vertical lifting screw is installed inside the lifting bracket, a lifting drive motor for driving the lifting screw to rotate is installed on the lifting bracket, a moving block that rises and falls with the rotation of the lifting screw is installed on the lifting screw, the end of the moving block extends out of the lifting bracket, and the pressure sensor is fixed under the extended end of the moving block.

[0009] Furthermore, at least one vertical lifting guide rail is installed inside the lifting bracket, and a lifting groove that cooperates with the lifting guide rail is opened on the side of the moving block.

[0010] Furthermore, the positioning mechanism includes a left and right positioning mechanism and a front and rear positioning mechanism, and the left and right positioning mechanism and the front and rear positioning mechanism are linked together.

[0011] Furthermore, the left and right positioning mechanism includes a positioning bracket, which is disposed on one side of the front and rear of the placement seat. A first bidirectional threaded rod arranged horizontally is rotatably connected inside the positioning bracket. A rotary drive motor for driving the first bidirectional threaded rod to rotate is installed on the positioning bracket. L-shaped clamps are symmetrically screwed to both ends of the first bidirectional threaded rod. The two L-shaped clamps separate or come together synchronously as the first bidirectional threaded rod rotates. The ends of the L-shaped clamps extend out of the positioning bracket and slide onto the placement seat.

[0012] Furthermore, the L-shaped clamp includes a threaded part and a positioning part connected to each other. The threaded part is threaded onto the first bidirectional threaded rod, and the positioning part extends out of the positioning bracket and slides onto the placement seat. A sliding rod parallel to the first bidirectional threaded rod is installed inside the positioning bracket, and a sliding hole is opened on the positioning part corresponding to the sliding rod.

[0013] Furthermore, the placement seat includes a placement platform, the front and rear sides of which are bent downward to form a bent support plate. The bent support plate is fixed to the base. The front and rear positioning mechanism includes a second bidirectional threaded rod arranged horizontally and longitudinally. The second bidirectional threaded rod is rotatably connected between the two bent support plates. A driving plate is symmetrically screwed to both ends of the second bidirectional threaded rod. A moving groove is opened on the placement platform for the driving plate to extend upward. The driving plate slides in the moving groove.

[0014] Furthermore, a driving bevel gear is installed on the middle part of the first bidirectional threaded rod, and the second bidirectional threaded rod extends through the bent support plate on the same side near the left and right positioning mechanism, with a driven bevel gear meshing with the driving bevel gear installed on the extended end.

[0015] Furthermore, a controller is installed on the side of the lifting bracket, and the controller is electrically connected to the pressure sensor, the lifting drive motor, and the rotation drive motor.

[0016] Compared with existing technologies, this invention has the following advantages: It is rationally designed, using a positioning mechanism to move and position the patch body directly below the testing mechanism, facilitating alignment during testing. Simultaneously, a lifting drive motor drives a lifting screw to rotate, which in turn moves the moving block downwards, gradually bringing the probe closer to the patch body until it contacts the hydrogel on the patch surface and applies pressure. A pressure sensor then records the contact pressure and feeds the pressure value back to the controller. The controller's internal data processor and storage process and store the feedback pressure data. Afterwards, the lifting drive motor drives the lifting screw to rotate (at which point the positioning mechanism simultaneously releases the patch body), causing the moving block to move upwards, allowing the probe to separate upwards at a constant speed. The pressure sensor records the maximum tensile force during separation, i.e., the adhesion force, and feeds this adhesion force back to the controller. The controller processes and stores the adhesion force data in the same way, thus achieving the effect of testing the adhesion of the patch body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the positioning mechanism structure according to an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the positioning mechanism in an embodiment of the present invention.

[0021] In the diagram: 10. Base; 11. Placement seat; 12. Patch body; 13. Controller; 20. Positioning mechanism; 201. Positioning bracket; 202. First bidirectional threaded rod; 203. Rotary drive motor; 204. L-shaped clamp; 205. Sliding rod; 206. Active bevel gear; 207. Driven bevel gear; 208. Second bidirectional threaded rod; 209. Moving groove; 210. Drive plate; 30. Testing mechanism; 301. Lifting bracket; 302. Lifting screw; 303. Lifting drive motor; 304. Moving block; 305. Lifting guide rail; 306. Pressure sensor; 307. Probe. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] like Figure 1-4 As shown, a hydrogel adhesion testing device for oral ulcer patches includes a base 10, a placement seat 11 fixed on the base, a patch body 12 placed on the placement seat, a positioning mechanism 20 provided on the base next to the placement seat, and a testing mechanism 30 slidably connected above the placement seat. In use, the patch body is placed on the placement seat, and the positioning mechanism moves the patch body directly below the testing mechanism, after which the viscosity is tested by the testing mechanism.

[0026] In this embodiment, to achieve viscosity detection, the testing mechanism includes a pressure sensor 306, with a probe 307 positioned below the pressure sensor corresponding to the patch body. A lifting mechanism for driving the testing mechanism to rise and fall is provided beside the placement seat. Furthermore, to achieve the rising and falling of the testing mechanism, the lifting mechanism includes a lifting bracket 301, with a vertical lifting screw 302 installed inside. A lifting drive motor 303 for driving the lifting screw to rotate is mounted on the lifting bracket; the top end of the lifting drive motor may be rotatably connected to the motor shaft. A moving block 304 that rises and falls with the rotation of the lifting screw is mounted on the lifting screw, with its end extending out of the lifting bracket. The pressure sensor is fixed to the extended end of the moving block. In operation, the lifting drive motor rotates the lifting screw, which in turn moves the moving block downwards, gradually bringing the probe closer to the patch body. Until the probe contacts the hydrogel on the patch surface and applies pressure, the pressure sensor records the contact pressure and feeds the value back to the controller. The controller's internal data processor and storage process and store the pressure data. Then, the lifting drive motor rotates the lifting screw (simultaneously releasing the patch body from the positioning mechanism), causing the moving block to move upwards. This causes the probe to separate upwards at a constant speed. The pressure sensor records the maximum tensile force (adhesive force) during separation and feeds this force back to the controller, which processes and stores the adhesion force data in the same way. This achieves the effect of testing the adhesion of the patch body.

[0027] In this embodiment, in order to assist the lifting of the moving block and make the lifting process smooth, at least one vertical lifting guide rail 305 is installed inside the lifting bracket. The side of the moving block is provided with a lifting groove that cooperates with the lifting guide rail. This application adopts two lifting guide rails symmetrically arranged on the left and right sides. Then the moving block slides on the lifting guide rails through the two lifting grooves on the left and right sides.

[0028] In this embodiment, in order to achieve accurate positioning of the patch body, the positioning mechanism includes a left and right positioning mechanism and a front and rear positioning mechanism. The left and right positioning mechanism and the front and rear positioning mechanism are linked together, that is, when the left and right positioning mechanism is driven to move, the front and rear positioning mechanism is linked together.

[0029] In this embodiment, the specific structure of the left and right positioning mechanism is as follows: The left and right positioning mechanism includes a positioning bracket 201, which is disposed on one side of the front or rear of the placement seat. It can be the front side or the rear side. A first bidirectional threaded rod 202, which is horizontally arranged, is rotatably connected inside the positioning bracket. A rotary drive motor 203 for driving the first bidirectional threaded rod to rotate is installed on the positioning bracket. L-shaped clamps 204 are symmetrically screwed to both ends of the first bidirectional threaded rod. The two L-shaped clamps separate or come together synchronously as the first bidirectional threaded rod rotates. The ends of the L-shaped clamps extend out of the positioning bracket and slide against the placement seat. On the base, the first bidirectional threaded rod is composed of two threaded rod segments with different directions of rotation. The L-shaped clamp is provided with a threaded hole that mates with the threaded rod, so that the rotation of the first bidirectional threaded rod can drive the two L-shaped clamps to separate or come together synchronously. More specifically, the L-shaped clamp includes a threaded part and a positioning part that are connected to each other. The threaded part is threaded onto the first bidirectional threaded rod, and the positioning part extends out of the positioning bracket and slides onto the base. A sliding rod 205 parallel to the first bidirectional threaded rod is installed in the positioning bracket. A sliding hole is opened on the positioning part corresponding to the sliding rod. Through the cooperation between the sliding rod and the sliding hole, the positioning part slides smoothly.

[0030] In this embodiment, the specific structure of the front and rear positioning mechanism is as follows: the placement seat includes a placement platform, the front and rear sides of the placement platform are bent downward to form a bent support plate, the bent support plate is fixed on the base, the front and rear positioning mechanism includes a second bidirectional threaded rod 208 arranged horizontally and longitudinally, the second bidirectional threaded rod is rotatably connected between the two bent support plates, and driving plates 210 are symmetrically screwed to both ends of the second bidirectional threaded rod. The placement platform has a moving groove 209 for the driving plate to extend upward, the driving plate slides in the moving groove, the second bidirectional threaded rod is also composed of two threaded rod segments with different directions of rotation, the driving plate is provided with a screw hole that cooperates with the threaded rod, so that the rotation of the second bidirectional threaded rod can drive the two driving plates to separate or come together synchronously, the moving groove limits the driving plate, so that the driving plate slides smoothly.

[0031] In this embodiment, in order to achieve the mutual linkage between the left and right positioning mechanisms and the front and rear positioning mechanisms: an active bevel gear 206 is installed on the middle part of the first bidirectional threaded rod, and the second bidirectional threaded rod extends through the bent support plate on the same side near the end of the left and right positioning mechanism, and a driven bevel gear 207 that meshes with the active bevel gear is installed on the extended end.

[0032] In this embodiment, during use, the patch body is placed on the top surface of the placement base, and then the rotary drive motor is started by the controller. The output end of the rotary drive motor drives the first bidirectional threaded rod to rotate, thereby driving the two L-shaped clamps to move towards each other. At the same time, the L-shaped clamps slide along the surface of the placement base, thereby achieving the effect of guiding the movement of the L-shaped clamps until the two L-shaped clamps clamp and fix the left and right sides of the patch body, thereby achieving the effect of clamping and fixing the patch body. Simultaneously, while the L-shaped clamps are moving, the second bidirectional threaded rod rotates under the action of the driving bevel gear and the driven bevel gear, thereby driving the two driving plates to slide towards the center to achieve centering.

[0033] In this embodiment, for the sake of reasonable design, an existing controller is installed on the side of the lifting bracket, and the controller is electrically connected to the pressure sensor, the lifting drive motor, and the rotation drive motor.

[0034] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0035] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0036] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0037] Furthermore, the orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in any of the technical solutions disclosed in this utility model are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this patent. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent. In addition, unless otherwise stated, the terms used to indicate shape in any of the technical solutions disclosed in this utility model include shapes that are similar to, close to, or approximate with it.

[0038] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A hydrogel adhesive test device for a mouth ulcer patch, characterized by: Including base (10), the base (10) is fixed with the placement seat (11), the placement seat (11) is placed with the patch body (12), the placement seat (11) side is provided with positioning mechanism (20), the placement seat (11) above lifting sliding joint has test mechanism (30).

2. The hydrogel adhesive test device for oral ulcer patch according to claim 1, characterized in that; The test mechanism (30) includes a pressure sensor (306), a probe (307) is arranged below the pressure sensor (306) corresponding to the patch body (12), and a lifting mechanism is arranged on the side of the placement seat (11) for driving the lifting of the test mechanism (30).

3. The hydrogel adhesive test device for oral ulcer patch according to claim 2, characterized in that; The lifting mechanism includes a lifting support (301), a vertical lifting lead screw (302) is installed in the lifting support (301), a lifting drive motor (303) is installed on the lifting support (301) for driving the rotation of the lifting lead screw (302), a moving block (304) is installed on the lifting lead screw (302) and lifts along with the rotation of the lifting lead screw (302), and the end of the moving block (304) extends out of the lifting support (301). The pressure sensor (306) is fixed to the lower end of the moving block (304).

4. The hydrogel adhesive test device for oral ulcer patch according to claim 3, characterized in that; At least one vertical lifting guide rail (305) is installed in the lifting support (301), and a lifting sliding groove is formed in the side of the moving block (304) and matched with the lifting guide rail (305).

5. The hydrogel adhesive test device for oral ulcer patch according to claim 3, characterized in that; The positioning mechanism (20) includes left-right positioning mechanism and front-rear positioning mechanism, and the left-right positioning mechanism and the front-rear positioning mechanism are interconnected.

6. The hydrogel adhesive test device for oral ulcer patch according to claim 5, wherein; The left-right positioning mechanism includes a positioning support (201), which is arranged on one side of the placement seat (11), a first bidirectional threaded rod (202) is rotatably connected in the positioning support (201) and arranged horizontally, a rotation drive motor (203) is installed on the positioning support (201) for driving the rotation of the first bidirectional threaded rod (202), L-shaped clamping plates (204) are symmetrically screwed on both ends of the first bidirectional threaded rod (202), and the two L-shaped clamping plates (204) are separated or combined synchronously along with the rotation of the first bidirectional threaded rod (202). The end of the L-shaped clamping plate (204) extends out of the positioning support (201) and is slidably connected to the placement seat (11).

7. The hydrogel adhesive test device for oral ulcer patch according to claim 6, characterized in that; The L-shaped clamping plate (204) includes a screwing part and a positioning part connected to each other, the screwing part is screwed on the first bidirectional threaded rod (202), the positioning part extends out of the positioning support (201) and is slidably connected to the placement seat (11), a sliding rod (205) parallel to the first bidirectional threaded rod (202) is installed in the positioning support (201), and a sliding hole is formed in the positioning part corresponding to the sliding rod (205).

8. The hydrogel adhesive test device for oral ulcer patch according to claim 6, characterized in that; The placing seat (11) comprises a placing table top, the front and rear sides of the placing table top are bent downward to form bent support plates, the bent support plates are fixed on the base (10), the front and rear positioning mechanisms comprise horizontally longitudinally arranged second bidirectional threaded rods (208), the second bidirectional threaded rods (208) are rotationally connected between the two bent support plates, driving plates (210) are symmetrically screwed on the two ends of the second bidirectional threaded rods (208), and the placing table top is provided with moving grooves (209) for the driving plates (210) to extend upward.

9. The hydrogel adhesive test device for oral ulcer patch according to claim 8, wherein; The middle part of the first bidirectional threaded rod (202) is provided with a driving bevel gear (206), the second bidirectional threaded rod (208) extends out through the same side bent support plate near one end of the left and right positioning mechanisms, and the extending end is provided with a driven bevel gear (207) engaged with the driving bevel gear (206).

10. The hydrogel adhesive test device for oral ulcer patch according to claim 6, characterized in that; The lifting support (301) is provided with a controller (13) on the side, and the controller (13) is electrically connected with the pressure sensor (306), the lifting driving motor (303) and the rotating driving motor (203) respectively.

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