Implant tooth abutment screw connection firmness testing mechanism

Abstract

The utility model discloses a dental implant abutment screw connection firmness testing mechanism which comprises a working table, a stand column, a top plate, an impact table, a testing table, a linear sliding rail, a sliding block, a cam, a first guide rod, a tension spring, a simulation implant and a feedback mechanism, the top plate is fixedly installed on the working table through the stand column, the impact table is fixedly installed on the bottom face of the top plate, and the testing table is fixedly installed on the bottom face of the top plate. The four linear sliding rails are distributed and fixedly installed on the two sides of the workbench in pairs. The test mechanism can test the firmness service life of the abutment and the simulated implant through a screw, after the screw is loosened, a gap is formed between the abutment and the simulated implant, an upper electrode plate and a lower electrode plate of the feedback mechanism can generate electric signals of reciprocating disconnection / connection, and the control module can send out signals through the sound / light alarm device in time, so that the service life of the abutment and the simulated implant is prolonged. And a tester can timely detect the connection state of the abutment and the simulated implant through the screw and record the connection state, so that the device has the advantage of timely feedback of test condition data.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooth restoration, and in particular relates to a screw connection firmness testing mechanism for a dental implant base. Background Art

[0002] Dental implants can be mainly composed of implants, abutments, screws and crowns. The implant is the part corresponding to the root of the natural tooth, and is also the part implanted and fixed in the alveolar bone. The abutment is the base column part that connects the fixture and the upper crown. Specifically, the lower part of the abutment is fixedly connected to the implant by screws. Whether the dental implant is firm and durable, the connection structure between the implant and the abutment through screws is particularly important. Simulation tests on it can obtain the use strength and service life data of the dental implant. The existing testing equipment adopts a technical testing method, that is, after testing 100 times, 300 times, 500 times, etc., the connection structure of the dental implant is observed after the test is stopped. This testing method requires manual judgment after shutdown, and has the disadvantage of low automation. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a testing mechanism capable of obtaining the connection strength information between a dental implant testing base and an implant through circuit feedback.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a dental implant base screw connection firmness testing mechanism, including a workbench, a column, a top plate, an impact table, a test table, a linear slide rail, a slider, a cam, a first guide rod, a tension spring, a simulated implant and a feedback mechanism, the top plate is fixedly mounted on the workbench through the column, the impact table is fixedly mounted on the bottom surface of the top plate, the workbench is set as a U-shaped structure, four linear slide rails are distributed and fixedly mounted on both sides of the workbench in pairs, sliders are fixedly mounted on both sides of the test table, the sliders are slidably mounted on the linear slide rails, and the workbench is fixed A driving motor is installed, the cam is rotatably installed in the workbench through a rotating shaft, the rotating shaft of the cam is drivingly connected to the output shaft of the driving motor, four first guide rods are distributed in a rectangular shape and fixedly installed at the bottom of the test bench, the lower end of the first guide rod is slidably installed in the workbench, the tension spring is sleeved and installed on the first guide rod, the upper and lower ends of the tension spring are respectively fixedly connected to the test bench and the workbench, under the action of the tension of the tension spring, the test bench is always pressed on the cam, the simulated implant is screwed and fixedly installed in the test bench, the left and right sides of the simulated implant are symmetrically provided with grooves, and the feedback mechanism is arranged in the grooves;

[0005] The feedback mechanism consists of a lower insulating support plate, a lower electrode plate, an upper insulating support plate, an upper electrode plate, a wing plate, a stop ring, a second guide rod, a spring and a control module. The lower insulating support plate is fixedly mounted on the bottom of the groove, the lower electrode plate is fixedly mounted on the lower insulating support plate, the stop ring is fixedly mounted at the entrance of the groove, four second guide rods are distributed in a rectangular shape and their lower ends are slidably mounted on the bottom of the groove, two wing plates are symmetrically and fixedly mounted in the middle positions on both sides of the upper insulating support plate, the upper electrode plate is fixedly mounted on the bottom surface of the upper insulating support plate, the spring is sleeved on the second guide rod, the upper and lower ends of the spring act on the wing plate and the bottom of the groove respectively, the stop ring can limit the extreme position of the upward movement of the wing plate, and the lower electrode plate and the upper electrode plate are both connected to the control module through a circuit.

[0006] Preferably, a guide sleeve is screwed and fixedly mounted on the workbench, and the lower end of the first guide rod is slidably mounted in the guide sleeve.

[0007] Preferably, a backing plate is screwed and fixedly mounted on the bottom surface of the test bench, and the backing plate is always pressed on the cam.

[0008] Preferably, the impact platform is screwed and fixedly mounted on the bottom surface of the top plate.

[0009] Compared with the prior art, the benefits of the utility model are: the testing mechanism can test the firmness and life of the screws between the abutment and the simulated implant. After the screws are loosened, a gap will appear between the abutment and the simulated implant, and the upper electrode plate and the lower electrode plate of the feedback mechanism will have reciprocating disconnection / connection electrical signals. The control module can promptly send out signals through the sound / light alarm device, and the tester can promptly detect the connection status between the abutment and the simulated implant through the screws and record it, which has the advantage of timely feedback of test status data. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings.

[0011] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0012] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at M. DETAILED DESCRIPTION

[0013] The utility model is described in detail below in conjunction with specific implementation methods:

[0014] like Figure 1 and Figure 2The device for testing the screw connection firmness of a dental implant base shown in the figure comprises a workbench 1, a column 2, a top plate 21, an impact table 22, a test table 3, a linear slide rail 31, a slider 32, a cam 4, a first guide rod 5, a tension spring 51, a simulated implant 6 and a feedback mechanism, wherein the top plate 21 is fixedly mounted on the workbench 1 through the column 2, the impact table 22 is fixedly mounted on the bottom surface of the top plate 21, the workbench 1 is set as a U-shaped structure, four linear slide rails 31 are distributed and fixedly mounted on both sides of the workbench 1 in pairs, sliders 32 are fixedly mounted on both sides of the test table 3, the sliders 32 are slidably mounted on the linear slide rails 31, and a driving motor is fixedly mounted on the workbench 1 The cam 4 is rotatably installed in the workbench 1 through a rotating shaft, the rotating shaft of the cam 4 is drivingly connected to the output shaft of the driving motor, four first guide rods 5 are fixedly installed at the bottom of the test bench 3 in a rectangular distribution, the lower end of the first guide rod 5 is slidably installed in the workbench 1, the tension spring 51 is sleeved and installed on the first guide rod 5, the upper and lower ends of the tension spring 51 are respectively fixedly connected to the test bench 3 and the workbench 1, under the action of the tension of the tension spring 51, the test bench 3 is always pressed on the cam 4, the simulated implant 6 is screwed and fixedly installed in the test bench 3, the left and right sides of the simulated implant 6 are symmetrically provided with grooves 61, and the feedback mechanism is arranged in the groove 61;

[0015] The feedback mechanism consists of a lower insulating support plate 91, a lower electrode plate 910, an upper insulating support plate 92, an upper electrode plate 920, a wing plate 921, a stop ring 93, a second guide rod 94, a spring 95 and a control module. The lower insulating support plate 91 is fixedly mounted at the bottom of the groove 61, the lower electrode plate 910 is fixedly mounted on the lower insulating support plate 91, the stop ring 93 is fixedly mounted at the entrance of the groove 61, four second guide rods 94 are distributed in a rectangular shape and their lower ends are slidably mounted at the bottom of the groove 61, two wing plates 921 are symmetrically and fixedly mounted at the middle positions on both sides of the upper insulating support plate 92, the upper electrode plate 920 is fixedly mounted on the bottom surface of the upper insulating support plate 92, the spring 95 is sleeved and mounted on the second guide rod 94, the upper and lower ends of the spring 95 act on the wing plate 921 and the bottom of the groove 61 respectively, the stop ring 93 can limit the extreme position of the upward movement of the wing plate 921, and the lower electrode plate 910 and the upper electrode plate 920 are connected to the control module through a circuit.

[0016] A guide sleeve is screwed and fixed on the workbench 1, and the lower end of the first guide rod 5 is slidably installed in the guide sleeve. The guide sleeve has the advantage of inner hole precision and is easy to process, which can further improve the straightness of the first guide rod 5 when it moves up and down. After the guide sleeve is worn, it can be disassembled and replaced separately.

[0017] A backing plate 41 is screwed and fixed on the bottom surface of the test bench 3. The backing plate 41 is always pressed on the cam 4. After the backing plate 41 is worn, it can be disassembled and replaced separately, which has the advantages of low maintenance cost and convenient maintenance.

[0018] The impact table 22 is screwed and fixedly installed on the bottom surface of the top plate 21. The screwed installation method facilitates the replacement of impact tables 22 of different sizes and different structural types to meet the actual test requirements.

[0019] The base 7 is connected and fixed to the simulated implant 6 by screws 10, and the crown 8 is fixedly installed on the base 7. The base 7 presses down the upper insulating support plate 92, so that the upper electrode plate 920 contacts the lower electrode plate 910 to form a passage, and the driving motor is started to drive the cam 4 to rotate. The tip of the cam 4 pushes the test bench 3 to overcome the tension of the tension spring 51 and move upward along the linear slide rail 51. After the flat bottom of the cam 4 contacts the test bench 3, the test bench 3 slides downward along the linear slide rail 51 under the action of the tension of the tension spring 51 to reset, and the crown 8 contacts and collides with the impact table 22 reciprocatingly. When the screw 10 is loose, a gap appears between the base 7 and the simulated implant 6. During the test, the base 7 and the crown 8 may shake. When the base 7 and the crown 8 move upward, the base 7 releases the downward pressure on the upper insulating support plate 92. The combination of the upper insulating support plate 92, the wing plate 921, the upper electrode plate 920, and the second guide rod 94 moves upward under the action of the elastic force of the spring 95. At this time, the upper electrode plate 920 and the lower electrode plate 910 are in an open circuit state. The control module detects a signal that the electrical signal is disconnected, and the control module controls the sound / light alarm device connected to its circuit to send a signal. The tester stops the machine and observes the connection status of the base 7 and the simulated implant 6.

Claims

1. A device for testing the connection firmness of a dental implant abutment screw, characterized in that: The invention comprises a workbench (1), a column (2), a top plate (21), an impact table (22), a test table (3), a linear slide rail (31), a slider (32), a cam (4), a first guide rod (5), a tension spring (51), a simulated implant (6) and a feedback mechanism, wherein the top plate (21) is fixedly mounted on the workbench (1) via the column (2), the impact table (22) is fixedly mounted on the bottom surface of the top plate (21), the workbench (1) is arranged in a U-shaped structure, four linear slide rails (31) are fixedly mounted on both sides of the workbench (1) in pairs, sliders (32) are fixedly mounted on both sides of the test table (3), the sliders (32) are slidably mounted on the linear slide rails (31), a drive motor is fixedly mounted on the workbench (1), and the cam (51) is fixedly mounted on the bottom surface of the top plate (21). 4) is rotatably mounted in the workbench (1) via a rotating shaft, the rotating shaft of the cam (4) is drivingly connected to the output shaft of the driving motor, four first guide rods (5) are fixedly mounted on the bottom of the test bench (3) in a rectangular distribution, the lower ends of the first guide rods (5) are slidably mounted in the workbench (1), the tension spring (51) is sleeved and mounted on the first guide rod (5), the upper and lower ends of the tension spring (51) are respectively fixedly connected to the test bench (3) and the workbench (1), under the action of the tension of the tension spring (51), the test bench (3) is always pressed against the cam (4), the simulated implant (6) is screwed and fixedly mounted in the test bench (3), the left and right sides of the simulated implant (6) are symmetrically provided with grooves (61), and the feedback mechanism is arranged in the groove (61); The feedback mechanism comprises a lower insulating support plate (91), a lower electrode plate (910), an upper insulating support plate (92), an upper electrode plate (920), a wing plate (921), a stop ring (93), a second guide rod (94), a spring (95) and a control module; the lower insulating support plate (91) is fixedly mounted at the bottom of the groove (61); the lower electrode plate (910) is fixedly mounted on the lower insulating support plate (91); the stop ring (93) is fixedly mounted at the entrance of the groove (61); four second guide rods (94) are distributed in a rectangular shape and their lower ends are slidably mounted in the groove (61). 1) bottom, two wing plates (921) are symmetrically and fixedly mounted at the middle positions on both sides of the upper insulating support plate (92), the upper electrode plate (920) is fixedly mounted on the bottom surface of the upper insulating support plate (92), the spring (95) is sleeved and mounted on the second guide rod (94), the upper and lower ends of the spring (95) act on the wing plate (921) and the bottom of the groove (61) respectively, the stop ring (93) can limit the extreme position of the upward movement of the wing plate (921), and the lower electrode plate (910) and the upper electrode plate (920) are both connected to the control module through a circuit.

2. The dental implant abutment screw connection firmness testing mechanism according to claim 1, characterized in that: A guide sleeve is screwed and fixedly mounted on the workbench (1), and the lower end of the first guide rod (5) is slidably mounted in the guide sleeve.

3. The dental implant abutment screw connection firmness testing mechanism according to claim 1, characterized in that: A backing plate (41) is screwed and fixedly mounted on the bottom surface of the test bench (3), and the backing plate (41) is always pressed against the cam (4).

4. The dental implant abutment screw connection firmness testing mechanism according to claim 1, characterized in that: The impact platform (22) is screwed and fixedly mounted on the bottom surface of the top plate (21).

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