Fatigue testing device for dental diaphragm

Abstract

The utility model relates to the technical field of dental diaphragm testing, in particular to a fatigue testing device for a dental diaphragm, and aims to solve the technical problems that a dental diaphragm fatigue test cannot simulate a real oral temperature and humidity environment, and the test result is inaccurate. According to the technical scheme, the fatigue testing device for the dental diaphragm comprises a pedestal, a rack, a supporting table, a lifting table, a hot air unit and a heat insulation assembly, according to the utility model, the heat insulation assembly is arranged on the existing testing machine to insulate and isolate the tensile testing area of the dental diaphragm, and the external hot air unit is matched to continuously input hot air with water vapor into the isolated area to assist in heating the testing environment, so that the testing temperature is similar to the temperature and humidity environment of the oral cavity of a human body; the authenticity and reliability of the dental diaphragm fatigue test are ensured, and the problems that the dental diaphragm fatigue test cannot simulate the real oral temperature and humidity environment and the test result is inaccurate are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dental diaphragm testing, in particular to a fatigue testing device for dental diaphragms. Background Art

[0002] Dental membranes used for dental treatments such as orthodontics are mostly made of resin, which are then pressed into shape by a thermoforming machine or a laminating machine. After forming, the details are trimmed with scissors to make it more closely fit the shape of the teeth. Because dental membranes are worn in the mouth for long-term use, trial production is required first, and then fatigue testing is carried out on the trial-produced products. Improvements or mass production are selected based on the test results.

[0003] The fatigue test of dental diaphragms is mainly carried out through the tensile elastic modulus testing machine currently available on the market to test the tensile strength, elongation at break, peel force, 180-degree peel strength, puncture force, puncture strength and other properties of the dental diaphragm, and cooperate with the computer system to identify and judge the fatigue resistance and reliability of the dental diaphragm. However, the current testing machines are at room temperature when testing dental diaphragms and cannot simulate the normal temperature and humidity environment of the human oral cavity. Therefore, there are high errors in the test results of the fatigue resistance and reliability of dental diaphragms.

[0004] Therefore, in view of the fact that the above-mentioned dental diaphragm fatigue test cannot simulate the real oral temperature and humidity environment and the test results are inaccurate, a dental diaphragm fatigue testing machine can be designed that can simulate the human oral temperature and humidity environment to make the test results of the dental diaphragm more accurate. Utility Model Content

[0005] In order to overcome the problem that the dental diaphragm fatigue test cannot simulate the real oral temperature and humidity environment, and the test results are inaccurate.

[0006] The technical solution of the utility model is: a fatigue testing device for dental diaphragms, comprising a pedestal, a frame, a support, a lifting platform, a hot air unit, and a thermal insulation component; a frame with a door structure is fixedly installed on the upper end of the pedestal, a support mounted on the pedestal and a vertically movable lifting platform are arranged in the frame, a hot air unit is installed on the upper end of the frame, a longitudinally retractable thermal insulation component is arranged between the support and the lifting platform, the thermal insulation component is fixed to the lifting platform by magnetic adsorption, the dental diaphragm is located on the inner side of the thermal insulation component, and an air outlet channel of the hot air unit is connected with the inside of the thermal insulation component.

[0007] Preferably, after fixing the two ends of the dental diaphragm on the support and the lifting platform respectively, the thermal insulation component is stretched, and the position of the dental diaphragm is sealed into a cylindrical cavity in cooperation with the support and the lifting platform. The hot air unit mainly includes two parts, one is a steam generator, and the other is a hot air blower. The external hot air unit continuously inputs hot air with water vapor into the isolation area to assist in heating the test environment and simulate the real oral temperature and humidity environment. The thermal insulation component has built-in temperature sensors and humidity sensors, and the temperature and humidity data are fed back to the control module of the hot air unit to ensure that the thermal insulation component is always maintained in a stable temperature and humidity environment. At the same time, the lifting platform lifts and pulls the diaphragm to perform fatigue testing on the diaphragm in the temperature and humidity environment of the human oral cavity.

[0008] Preferably, two symmetrical pressure plates are provided at the upper end of the support, and two screw fasteners are symmetrically provided at the upper end of the support, the screw fastener consists of a base fixedly connected to the support and a screw connected to the internal thread of the base, one end of the screw is movably connected to the adjacent pressure plate through a bearing, and a pulling piece for fixing the upper end of the dental diaphragm is installed at the lower end of the lifting platform. The screw fastener clamps one end of the dental diaphragm by rotating the screw and pushing the pressure plates toward each other, and then fixes the upper end of the diaphragm through the pulling piece. The pulling piece can use simple tools such as clips and hooks that can fix different dental diaphragms, and the dental diaphragm is stretched and tested by moving the lifting platform.

[0009] Preferably, the thermal insulation assembly includes a buckle ring, a baffle cover, and a ring beam; the buckle ring is placed on the support platform and is located on the outside of the two pressure plates, a baffle cover is fixedly installed on the upper end of the buckle ring, and a ring beam tightly attached to the lower surface of the lifting platform is fixedly connected to the upper end of the baffle cover. The buckle ring, baffle cover and ring beam form a hollow cylindrical structure, which wraps the dental diaphragm inside to form a closed space to simulate the temperature and humidity environment of a real oral cavity.

[0010] Preferably, the baffle cover is a longitudinally retractable accordion structure, the inner wall of the baffle cover is coated with a thermal insulation coating, the accordion structure of the baffle cover is made of rubber, and each internal fold is provided with a circumferential stiffening frame, which can be tightly connected to the external folding material through different processing methods, so that the baffle cover can expand and contract vertically, and can be stretched or compressed synchronously with the movement of the lifting platform. The setting of the thermal insulation coating makes the thermal insulation effect of the baffle cover better and reduces heat loss.

[0011] Preferably, the heat insulation component further includes a through hole and an air inlet duct; through holes are provided on both ends of the buckle ring, and the screw of the screw fastener passes through the adjacent through hole into the buckle ring; one side of the buckle ring is fixedly connected to the air inlet duct connected to the air outlet channel of the hot air unit; the through hole serves as a channel for the screw fastener to control the pressure plate, and at the same time, the screw and the through hole are connected to prevent the buckle ring from moving on the support.

[0012] Preferably, the thermal insulation component also includes handles and a magnetic ring; two handles are symmetrically fixedly connected to the lower end of the ring beam, a magnetic ring is fixedly installed on the upper end of the ring beam, and a groove matching the magnetic ring is opened around the outer side of the pulling member at the lower end of the lifting platform. After the ring beam is attached to the lower surface of the lifting platform, the magnetic ring is embedded in the groove, and a magnetic adsorption fixing structure is formed by the magnetic metal layer on the inner wall of the groove.

[0013] Preferably, each of the four corners of the lower end of the lifting platform is fixedly connected to a shaft column, and a limiting plate is rotatably connected to the shaft column. The limiting plate rests on the lower surface of the ring beam to press the ring beam and the lifting platform tightly. In order to avoid instability of the magnetic adsorption structure between the magnetic attraction ring and the embedding groove, the limiting plate is rotated to the bottom of the ring beam to prevent the ring beam from slipping longitudinally from the lifting platform.

[0014] Beneficial effects of the utility model:

[0015] 1. By setting up a heat insulation component on the existing test machine to insulate the tensile test area of ​​the dental diaphragm, and cooperating with an external hot air unit to continuously input hot air with water vapor into the isolation area to assist in heating the test environment, the test temperature is similar to the temperature and humidity environment of the human oral cavity, ensuring the authenticity and reliability of the dental diaphragm fatigue test;

[0016] 2. Through the magnetic ring set on the heat insulation component, it can be quickly adsorbed and fixed to the lifting platform when in use, without the need to hold the shield by hand for a long time to stabilize the state, and the installation is fast and convenient;

[0017] 3. The ring beam can be further locked by the rotatable limit plate set on the lifting platform to ensure that during the test, the ring beam will not accidentally fall off the lifting platform, thereby causing the simulated temperature and humidity environment to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The first stereoscopic structure schematic diagram of the fatigue testing device for dental membrane of the utility model is shown;

[0019] Figure 2 The second stereoscopic structure schematic diagram of the fatigue testing device for dental membrane of the utility model is shown;

[0020] Figure 3 The figure shows a three-dimensional structure diagram of the testing machine body of the fatigue testing device for dental diaphragms of the utility model;

[0021] Figure 4 The figure shows a three-dimensional structure diagram of a lifting platform of a fatigue testing device for dental membranes of the present invention;

[0022] Figure 5 What is shown is a three-dimensional structural schematic diagram of a heat insulation component of a fatigue testing device for dental diaphragms of the present invention;

[0023] Figure 6 Shown is a three-dimensional structural schematic diagram of another state of the thermal insulation component of the fatigue testing device for dental diaphragms of the present invention.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. base; 2. frame; 3. support platform; 4. lifting platform; 5. hot air unit; 7. embedded groove; 8. shaft column; 9. limit plate; 10. pressure plate; 11. screw fastener; 12. pulling member; 601. buckle; 602. baffle; 603. ring beam; 604. through hole; 605. air inlet pipe; 606. handle; 607. magnetic ring. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-3 The utility model provides an embodiment: a fatigue testing device for dental diaphragms, comprising a pedestal 1, a frame 2, a support 3, a lifting platform 4, a hot air unit 5, and a heat insulation component; a pedestal 1 is fixedly mounted with a gantry-structured frame 2 on the upper end of the pedestal 1, a support 3 placed on the pedestal 1 and a vertically movable lifting platform 4 are arranged in the frame 2, a hot air unit 5 is installed on the upper end of the frame 2, a longitudinally retractable heat insulation component is arranged between the support 3 and the lifting platform 4, the heat insulation component is fixed to the lifting platform 4 by magnetic adsorption, the dental diaphragm is located inside the heat insulation component, the air outlet channel of the hot air unit 5 is connected with the inside of the heat insulation component, after the two ends of the dental diaphragm are respectively fixed to the support 3 and the lifting platform 4, and then the heat insulation component is The parts are stretched, and the position of the dental diaphragm is closed into a cylindrical cavity with the support platform 3 and the lifting platform 4. The hot air unit 5 mainly includes two parts, one is a steam generator, and the other is a hot air blower. The external hot air unit 5 continuously inputs hot air with water vapor into the isolation area to assist in heating the test environment and simulate the real oral temperature and humidity environment. The thermal insulation component has built-in temperature sensors and humidity sensors, which feed back the temperature data and humidity data to the control module of the hot air unit 5 to ensure that the thermal insulation component is always maintained in a stable temperature and humidity environment. At the same time, the lifting platform 4 lifts and pulls the diaphragm to perform fatigue testing on the diaphragm in the temperature and humidity environment of the human oral cavity.

[0027] See also Figure 3-4In this embodiment, two symmetrical pressing plates 10 are arranged on the upper end of the support 3, and two screw fasteners 11 are symmetrically arranged on the upper end of the support 3. The screw fastener 11 consists of a base fixedly connected to the support 3 and a screw connected to the inner thread of the base. One end of the screw is movably connected to the adjacent pressing plate 10 through a bearing. A pulling piece 12 for fixing the upper end of the dental diaphragm is installed at the lower end of the lifting platform 4. The screw fastener 11 clamps one end of the dental diaphragm by rotating the screw and pushing the pressing plates 10 to move toward each other, and then fixes the upper end of the diaphragm through the pulling piece 12. The pulling piece 12 can use simple tools such as clips and hooks that can fix different dental diaphragms, and the dental diaphragm is moved and stretched by the lifting platform 4 for testing.

[0028] See also Figure 5-6 In this embodiment, the heat insulation assembly includes a buckle 601, a baffle 602, and a ring beam 603; the buckle 601 is placed on the support platform 3 and is located outside the two pressing plates 10, the upper end of the buckle 601 is fixedly installed with a baffle 602, and the upper end of the baffle 602 is fixedly connected with a ring beam 603 that is close to the lower surface of the lifting platform 4. The buckle 601, the baffle 602 and the ring beam 603 form a hollow cylindrical structure, which surrounds and wraps the dental diaphragm inside to form a closed space to simulate the temperature of a real oral cavity. The shield 602 is a accordion-type structure that can be extended vertically to adapt to the temperature and humidity environment. The inner wall of the shield 602 is coated with a heat-insulating coating. The accordion-type structure of the shield 602 is made of rubber. Each internal fold is provided with a circumferential stiffening skeleton. This skeleton can be closely connected with the external folding material through different processing methods, so that the shield 602 can expand and contract vertically, and can be stretched or compressed synchronously with the movement of the lifting platform 4. The setting of the heat-insulating coating makes the heat-insulating effect of the shield 602 better and reduces Heat loss, the heat insulation component includes a through hole 604 and an air inlet pipe 605; through holes 604 are opened on both ends of the buckle 601, and the screw of the screw fastener 11 passes through the adjacent through hole 604 into the buckle 601, and one side of the buckle 601 is fixedly connected with the air inlet pipe 605 connected to the air outlet channel of the hot air unit 5. The through hole 604 serves as a channel for the screw fastener 11 to control the pressure plate 10. At the same time, with the help of the insertion of the screw and the through hole 604, the buckle 601 is prevented from being on the support platform 3 The heat insulation assembly also includes a handle 606 and a magnetic ring 607; two handles 606 are symmetrically fixedly connected to the lower end of the ring beam 603, and a magnetic ring 607 is fixedly installed on the upper end of the ring beam 603. The lower end of the lifting platform 4 is surrounded by the outer side of the pulling member 12 and is provided with an embedding groove 7 adapted to the magnetic ring 607. After the ring beam 603 is attached to the lower surface of the lifting platform 4, the magnetic ring 607 is embedded in the embedding groove 7, and a magnetic adsorption fixing structure is formed by the magnetic metal layer on the inner wall of the embedding groove 7.

[0029] See also Figure 4In this embodiment, a shaft column 8 is fixedly connected to each of the four corners of the lower end of the lifting platform 4, and a limiting plate 9 is rotatably connected to the shaft column 8. The limiting plate 9 rests on the lower surface of the ring beam 603 to press and fix the ring beam 603 and the lifting platform 4. In order to avoid the instability of the magnetic adsorption structure between the magnetic attraction ring 607 and the embedding groove 7, the limiting plate 9 is rotated to the bottom of the ring beam 603 to prevent the ring beam 603 from slipping longitudinally from the lifting platform 4.

[0030] When working, the user inserts the dental diaphragm from the middle of the buckle 601 and places it on the support 3, rotates the screw to push the pressing plate 10 to move oppositely to clamp the lower end of the dental diaphragm, then controls the lifting platform 4 to slide down, and uses the pulling member 12 to fix the upper end of the diaphragm;

[0031] Next, the ring beam 603 is pulled upward until it abuts against the lower surface of the lifting platform 4, so that the magnetic ring 607 is embedded in the embedding groove 7, and the ring beam 603 is fixed to the lifting platform 4 by mutual adsorption with the magnetic metal layer on the inner wall of the embedding groove 7, and then the limiting piece 9 is rotated to the bottom of the ring beam 603 to further lock the ring beam 603;

[0032] The external hot air unit 5 continuously inputs hot air with water vapor into the isolation area and performs real-time temperature and humidity monitoring and feedback through the temperature sensor and humidity sensor built into the insulation component. Auxiliary heating simulates the real oral temperature and humidity environment. The lifting platform 4 lifts and pulls the diaphragm to perform fatigue testing on the diaphragm in the human oral temperature and humidity environment.

[0033] Through the above steps, a heat insulation component is set on the existing testing machine to insulate and isolate the tensile test area of ​​the dental diaphragm, and cooperate with the external hot air unit 5 to continuously input hot air with water vapor into the isolation area to assist in heating the test environment, so that the test temperature is similar to the temperature and humidity environment of the human oral cavity, ensuring the authenticity and reliability of the dental diaphragm fatigue test, so as to solve the problem that the dental diaphragm fatigue test cannot simulate the real oral temperature and humidity environment and the test results are inaccurate.

[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A fatigue testing device for a dental diaphragm, comprising a base (1), a frame (2), a support (3), and a lifting platform (4); characterized in that: It also includes a hot air unit (5) and a heat insulation component; a frame (2) with a door structure is fixedly installed on the upper end of the base (1); a support platform (3) placed on the base (1) and a vertically movable lifting platform (4) are arranged in the frame (2); a hot air unit (5) is installed on the upper end of the frame (2); a heat insulation component that can be longitudinally extended is arranged between the support platform (3) and the lifting platform (4); the heat insulation component and the lifting platform (4) are fixed by magnetic adsorption; the dental diaphragm is located inside the heat insulation component; and the air outlet channel of the hot air unit (5) is connected to the inside of the heat insulation component.

2. A fatigue testing device for a dental film according to claim 1, characterized in that: Two left-right symmetrical pressing plates (10) are arranged at the upper end of the support platform (3), and two screw fasteners (11) are arranged at the upper end of the support platform (3), the screw fastener (11) is composed of a base fixedly connected to the support platform (3) and a screw connected to the inner thread of the base, one end of the screw is movably connected to the adjacent pressing plate (10) through a bearing, and a pulling piece (12) for fixing the upper end of the dental membrane is installed at the lower end of the lifting platform (4).

3. A fatigue testing device for a dental film according to claim 2, characterized in that: The heat insulation component comprises a buckle (601), a baffle (602), and a ring beam (603); the buckle (601) is placed on the support platform (3) and is located outside the two pressure plates (10); the baffle (602) is fixedly mounted on the upper end of the buckle (601); and the baffle (602) is fixedly connected to the upper end of the ring beam (603) which is closely attached to the lower surface of the lifting platform (4).

4. A fatigue testing device for a dental film according to claim 3, characterized in that: The shield (602) is a longitudinally retractable accordion-type structure, and the inner wall of the shield (602) is coated with a heat-insulating coating.

5. A fatigue testing device for a dental film according to claim 4, characterized in that: The heat insulation component further comprises a through hole (604) and an air inlet pipe (605); through holes (604) are provided at both left and right ends of the buckle (601); the screw of the screw fastener (11) passes through the adjacent through hole (604) into the buckle (601); and one side of the buckle (601) is fixedly connected to an air inlet pipe (605) connected to the air outlet channel of the hot air unit (5).

6. A fatigue testing device for a dental film according to claim 5, characterized in that: The heat insulation component also includes a handle (606) and a magnetic ring (607); two handles (606) are symmetrically fixedly connected to the lower end of the ring beam (603), a magnetic ring (607) is fixedly installed on the upper end of the ring beam (603), and a groove (7) adapted to the magnetic ring (607) is opened around the lower end of the lifting platform (4) around the outer side of the pulling member (12).

7. A fatigue testing device for a dental film according to claim 6, characterized in that: The four corners of the lower end of the lifting platform (4) are each fixedly connected to a shaft column (8), and a limit plate (9) is rotatably connected to the shaft column (8). The limit plate (9) abuts against the lower surface of the ring beam (603) to press and fix the ring beam (603) and the lifting platform (4).

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