Tooth film spline water bath springback test fixture

Abstract

The utility model discloses a dental film spline water bath rebound test jig which comprises a jig body and two fixing strips, the two fixing strips are distributed in parallel and can be arranged at the top of the jig body in a mode of being relatively close to or away from each other so as to be suitable for clamping and fixing a dental film spline to be tested through the two fixing strips, and the two fixing strips are arranged on the top of the jig body in a mode of being close to or away from each other. The fixture body is used for clamping the tooth film sample strip, the clamped tooth film sample strip is arched upwards by a preset radian, scale marks are arranged at the top of the fixture body, and the extension direction of the scale marks is perpendicular to the extension direction of the fixing strips, so that the distance between the two fixing strips and the length of the tooth film sample strip can be measured. The dental film spline water bath rebound test fixture provided by the utility model can be used for conveniently detecting dental film splines, and is high in test precision and low in labor intensity.

Description

Technical Field

[0001] The utility model relates to the technical field of dental film strip testing equipment, in particular to a jig for water bath rebound testing of dental film strips. Background Art

[0002] During the detection of dental films, in order to test the elastic deformation of dental films in the oral environment, splines are usually made and bent. The splines are fixedly placed in a constant temperature water bath to simulate the actual use conditions of the splines. The test results are judged and analyzed by the change in the length of the splines after water bath, so as to determine whether the dental films can meet the requirements of people in daily use. When performing water bath detection, it is necessary to fix the splines and bend the splines into a fixed curvature, and the curvature needs to be variable as required to meet different test requirements and can be fixed in the test constant temperature water for a long time.

[0003] Currently, during detection, bent stainless steel clips are usually used for manual clamping, which is rather inconvenient. In the case of clamping in a fixed posture for a long time, the labor intensity is also relatively high. In addition, the test clamping end is also prone to interfering with and affecting the test. Summary of the Utility Model

[0004] The embodiment of the present application provides a jig for water bath rebound testing of dental film strips, which can very conveniently clamp and fix the bent dental film strips, with low labor intensity. At the same time, it also avoids the interference and influence of manual clamping on the test, and has high test accuracy.

[0005] The embodiment of the present application provides a jig for water bath rebound testing of dental film strips, including a jig body and two fixing strips. The two fixing strips are distributed in parallel and are arranged on the top of the jig body in a manner that can approach or move away from each other, so as to be suitable for clamping and fixing the dental film strips to be tested by the two fixing strips and bending the clamped dental film strips into a predetermined arc. The jig body is provided with scale lines on the top, and the extending direction of the scale lines is perpendicular to the extending direction of the fixing strips, so as to be able to measure the distance between the two fixing strips and the length of the dental film strips.

[0006] In a possible implementation manner, the fixing strip is an L-shaped strip board, including a fixing part and a clamping part. The fixing part extends horizontally, and the clamping part extends vertically upward from the inner end of the fixing part.

[0007] In a possible implementation manner, the fixing part is connected with a plurality of adjusting screws, and adjusting knobs are installed on the tops of the adjusting screws. The adjusting screws vertically penetrate the fixing part and are connected with the jig body in a threaded fit manner.

[0008] In a possible implementation, at least two special-shaped guide grooves are provided at the top of the fixture body along the extending direction of the scale line. Guide blocks that are slidably engaged with the special-shaped guide grooves are installed in the special-shaped guide grooves, and the adjusting screw is threadedly connected to the guide blocks.

[0009] In a possible implementation, the special-shaped guide groove is a T-shaped groove, and the upper opening size of the special-shaped guide groove is smaller than the bottom opening size, and the guide block is a T-shaped block.

[0010] In a possible implementation, the fixture body is a square plate, and the fixing strip and the scale line extend along the extending directions of two adjacent sides of the fixture body respectively.

[0011] Beneficial effects: Compared with the prior art, the dental film strip water bath resilience test fixture provided by the present application is provided with two fixing strips that can be relatively close to or far from each other. By changing the distance between the two fixing strips, a bent dental film strip can be clamped, so that the dental film strip arches upward and has a certain curvature. Then, the fixture with the dental film strip is immersed in the test constant temperature water together and kept for a certain immersion time. Then, the dental film strip after the water bath is taken out and the length value is directly read according to the scale line on the fixture body. It can very conveniently detect whether the dental film strip is qualified, and at the same time is suitable for tests with different curvature requirements, with low labor intensity, and can also avoid the interference problems caused by conventional manual operations that affect the test, and the test accuracy is higher.

[0012] These and other objects, features, and advantages of the present utility model are fully embodied through the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shows the structural schematic diagram of the present application.

[0014] Figure 2 Shows the structural schematic diagram of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be applied to other implementation schemes, variation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.

[0016] Those skilled in the art should understand that in the disclosure of the specification, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present utility model.

[0017] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0018] Referring to Figure 1 and Figure 2 , an embodiment of the present application provides a dental film strip water bath rebound test fixture, which includes a fixture body 10 and two fixing strips 20. The two fixing strips 20 are distributed in parallel and are arranged on the top of the fixture body 10 in a manner that can relatively approach or separate, so as to be suitable for clamping and fixing the dental film strip to be tested by the two fixing strips 20, and making the clamped dental film strip bend (such as arching upward) by a predetermined radian, so that the dental film strip to be tested maintains a fixed bending curvature to simulate its usage posture in the oral cavity. The fixture body 10 is provided with scale lines 11 on the top, and the extending direction of the scale lines 11 is perpendicular to the extending direction of the fixing strips 20, so as to be able to measure the distance between the two fixing strips 20 and the length of the dental film strip, including the length before water bath and the length after water bath.

[0019] Thus, by providing two fixing strips 20 whose relative distance can be changed, the two fixing strips 20 can clamp and fix different dental film strips, and make the dental film strip maintain a fixed bending curvature. During the test, the fixture body 10 carrying the fixed dental film strip is integrally immersed in the test constant temperature water, taken out after being immersed for a certain time, and the length of the dental film strip after water bath is directly read through the scale lines, and the test results are judged and analyzed in combination with the length before water bath. The operation is very convenient, and it can be determined whether different dental film strips can meet the needs of people in daily use. In addition, the problem of high labor intensity caused by manual clamping can be avoided, as well as the problem that the test clamping end interferes with the test, and the test accuracy can be effectively ensured.

[0020] In one embodiment, the fixture body 10 is a square plate, such as a rectangular plate or a square plate. The fixing strip 20 and the scale line 11 extend along the extending directions of two adjacent sides of the fixture body 10 respectively, so as to make full use of the space of the fixture body and the overall structure is compact.

[0021] In one embodiment, the fixing strip 20 is an L-shaped strip plate, including a fixing portion 21 and a clamping portion 22. The fixing portion 21 extends horizontally, and the clamping portion 22 extends vertically upward from the inner end of the fixing portion 21. Thus, a larger contact area can be formed between the vertically extending clamping portion 22 and the dental film strip to be tested, and the clamping is more stable, which can ensure that the dental film strip remains in the water bath for a long time without shifting and affecting the test results.

[0022] Further preferably, a plurality of adjusting screws 31 are connected to the fixing portion 21. At the same time, an adjusting knob 32 is installed on the top of the adjusting screw 31. In addition, the adjusting screw 31 vertically penetrates through the fixing portion 21 and is connected to the fixture body 10 in a threaded fit manner. Thus, the fixing portion 21 can be directly fixed on the fixture body 10 by rotating the adjusting knob 32, or removed from the fixture body 10. After changing the screwed position, the fixing strip 20 is fixed again. A plurality of threaded holes matching the adjusting screws 31 can be uniformly arranged on the fixture body 10 along the extending direction of the scale line 11. By screwing the adjusting screws 31 into different threaded holes, the position of the fixing strip 20 is changed, and thus the relative distance between the two fixing strips 20 is changed. In addition, when adjustment is required, the two fixing strips 20 can be moved simultaneously, or when adjusting in a small range, only one fixing strip 20 is moved.

[0023] Further preferably, at least two special-shaped guide grooves 101 are arranged on the top of the fixture body 10 along the extending direction of the scale line 11. At the same time, guide blocks 12 slidingly matched therewith are installed in the special-shaped guide grooves 101, and the adjusting screws 31 are threadedly connected to the guide blocks 12. In this way, the guide blocks 12 can be directly moved in the special-shaped guide grooves 101. After the guide blocks 12 are moved in place, the adjusting screws 31 are screwed tightly on the guide blocks 12. Finally, the fixing strip 20 is pressed tightly on the fixture body 10 through the adjusting knob 32. This is not only convenient for adjustment, but also can keep the two fixing strips 20 moving linearly closer to or away from each other, and the dental film strip is not prone to skew when bending.

[0024] In one embodiment, the special-shaped guide groove 101 is a T-shaped groove, and the upper opening size of the special-shaped guide groove 101 is smaller than the bottom opening size. At the same time, the guide block 12 is a T-shaped block.

[0025] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the accompanying drawings are only examples and do not limit the present utility model. The advantages of the present utility model have been fully and effectively realized. The functions and structural principles of the present utility model have been demonstrated and explained in the embodiments. Without departing from the above principles, any deformation or modification of the embodiments of the present utility model is possible.

Claims

1. A water bath rebound test fixture for gutta-percha specimens, characterized in that: The jig comprises a jig body and two fixing bars, wherein the two fixing bars are distributed in parallel and are arranged on the top of the jig body in a manner that allows them to be relatively close to or far away from each other, so as to be suitable for clamping and fixing a gutta-percha sample to be tested through the two fixing bars, and bending the clamped gutta-percha sample to a predetermined arc, wherein the jig body is provided with a scale line at the top, and the extension direction of the scale line is perpendicular to the extension direction of the fixing bars, so as to be able to measure the distance between the two fixing bars and the length of the gutta-percha sample.

2. The gutta-percha specimen water bath rebound test fixture as claimed in claim 1, characterized in that: The fixing strip is an L-shaped strip plate, comprising a fixing portion and a clamping portion, wherein the fixing portion extends in a horizontal direction, and wherein the clamping portion extends vertically upward from an inner side end of the fixing portion.

3. The gutta-percha specimen water bath rebound test fixture as claimed in claim 2, characterized in that: The fixing part is connected with a plurality of adjusting screws, and an adjusting knob is installed on the top of the adjusting screw. The adjusting screw vertically penetrates the fixing part and is connected with the fixture body in a threaded manner.

4. The gutta-percha specimen water bath rebound test fixture as claimed in claim 3, characterized in that: At least two special-shaped guide grooves are arranged on the top of the fixture body along the extending direction of the scale line, and guide blocks that slide and cooperate with the special-shaped guide grooves are installed in the special-shaped guide grooves, and the adjusting screw is threadedly connected to the guide block.

5. The gutta-percha specimen water bath rebound test fixture as claimed in claim 4, characterized in that: The special-shaped guide groove is a T-shaped groove, and the upper opening size of the special-shaped guide groove is smaller than the bottom opening size, and the guide block is a T-shaped block.

6. The gutta-percha specimen water bath rebound test fixture as claimed in claim 1, characterized in that: The fixture body is a square plate, and the fixing strip and the scale line extend respectively along the extension directions of two adjacent sides of the fixture body.

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