Dental handpiece holding force tester

Abstract

This utility model provides a dental handpiece clamping force tester, belonging to the field of dental handpiece technology. It solves the problem of inaccurate test results due to the inability to accurately reproduce the actual use of grinding needles. This is because the teeth exert a reaction force when the grinding needle is used to grind teeth, thus requiring a more sophisticated clamping structure. The dental handpiece clamping force tester includes a main body, with a first support frame fixedly connected to one side. A placement groove is formed on one side of the first support frame, and a fixing mechanism for securing the handpiece is located at the top of the placement groove. Four top plates are evenly arranged in a ring, and each of the four top plates has an adjustment mechanism for adjusting the top plates on the surface away from the second groove opening. A clamp is located at the bottom of the second support frame, and a clamping mechanism for holding the grinding needle is located inside the clamp. In this utility model, the top plate design ensures that the testing environment for the grinding needle more closely resembles actual use.

Description

Technical Field

[0001] This utility model belongs to the field of dental handpiece technology, and relates to a clamping force tester, particularly a dental handpiece clamping force tester. Background Technology

[0002] A search revealed Chinese patent CN220912520U, which discloses a dental handpiece clamping force detection device, belonging to the field of dental handpiece technology. The device includes a fixed base, a sensor support fixedly mounted on the top of a fixed column, a pull-down rod fixedly mounted at the center of the top surface of the fixed base, a buffer spring connected to the top surface of the pull-down rod, and a grinding needle chuck connected to the top of the buffer spring. A handpiece support frame is located below the sensor support frame, and a dental handpiece is placed inside the handpiece support frame. The grinding needle of the dental handpiece longitudinally penetrates the handpiece support frame and is clamped by a centripetal clamping component inside the grinding needle chuck. The handpiece support frame also includes a downward pressure component that applies downward pressure to the head of the dental handpiece to prevent it from falling. This design prevents slippage and loosening of the handpiece during pull-down, and the downward pressure component applies force to the head of the dental handpiece to prevent it from loosening and falling, thereby improving the detection efficiency of the dental handpiece clamping force.

[0003] The dental handpiece clamping force detection device in the aforementioned patent has the following shortcomings: When the device is in use, it cannot reproduce the actual usage of the grinding needle, which may lead to inaccurate test results. This is because when the grinding needle grinds the tooth, the tooth will exert a reaction force on it, so the requirements for the clamping structure are higher. Therefore, this problem needs to be solved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dental handpiece clamping force tester. The technical problem this invention aims to solve is that it cannot accurately reflect the actual usage of the grinding needle, which may lead to inaccurate test results. This is because the teeth exert a reaction force on the grinding needle when it grinds the teeth, thus requiring a higher standard for the clamping structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dental handpiece clamping force tester includes a main body. A first support frame is fixedly connected to one side of the main body. A placement groove is opened on one side of the first support frame. A fixing mechanism for fixing the handpiece is provided at the top of the placement groove. A second support frame is fixedly connected to the surface of the main body near the first support frame. A second slot is opened at the top of the second support frame. Four top plates are arranged in a ring evenly inside the side of the second support frame near the second slot. Each of the four top plates is provided with an adjustment mechanism for adjusting the top plate on the surface away from the second slot. A clamp is provided at the bottom of the second support frame. The clamp is provided with a clamping mechanism for clamping the grinding needle. The top plate design ensures that the testing environment for the grinding needle is closer to the actual use situation.

[0007] As a further embodiment of this utility model, the fixing mechanism includes a first hydraulic rod, which is fixedly connected inside the main body. A pressing plate is fixedly connected to the output end of the first hydraulic rod, and the pressing plate is configured to cooperate with the placement groove. A first groove is opened on the surface of the first support frame near the second groove, and the first groove and the second groove are configured to cooperate with each other. The dental handpiece can be fixed by the pressing plate.

[0008] As a further embodiment of this utility model, the adjusting mechanism includes two support rods, both of which are slidably connected to one side of the top plate, and the other ends of both support rods are fixedly connected to one side of the inside of the second support frame. Tension springs are sleeved on the surfaces of both support rods, with one end of each tension spring fixedly connected to one side of the top plate and the other end fixedly connected to one side of the inside of the second support frame. A T-shaped ring is fixedly connected to the bottom of the second support frame near the second slot, and a first gear is slidably sleeved on the surface of the T-shaped ring. A pressing plate is fixedly connected to the bottom of the first gear near the top plate, and an adjusting plate is fitted onto the surface of the pressing plate. The adjusting plate is fixedly connected to the top of the top plate. A motor is fixedly connected to the surface of the main body near the second support frame, and the motor output shaft is fixedly connected to a second gear via a coupling. The second gear and the first gear are configured to cooperate with each other. The tension springs allow the top plate to be reset.

[0009] As a further embodiment of this utility model, the clamping mechanism includes two second hydraulic rods, both of which are fixedly connected to one side of the clamp and are symmetrically arranged. Each of the output ends of the two second hydraulic rods is fixedly connected to a clamping plate, and the two clamping plates are mutually cooperating. Anti-slip pads are fixedly connected to the surface of each clamping plate away from the second hydraulic rods, and multiple anti-slip grooves are formed on one side of each anti-slip pad. Four tension sensors are fixedly connected to the bottom of the clamp and are evenly arranged in a square shape. The bottom of the four tension sensors is fixedly connected to the same connecting plate. A third hydraulic rod is fixedly connected to the interior of the main body near the connecting plate, and the connecting plate is fixedly connected to the output end of the third hydraulic rod. The clamping plates allow for the clamping and fixing of the grinding needle.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model employs a technique of squeezing the grinding needle through a top plate, ensuring that the testing environment for the grinding needle more closely resembles actual usage conditions. This effectively solves the problem of inaccurate test results due to the inability to accurately reproduce the actual usage of the grinding needle. Because the teeth exert a reaction force when the grinding needle grinds the teeth, the requirements for the clamping structure are higher. When the motor starts, the first gear rotates synchronously. Four top plates are installed at the bottom of the first gear, and all four top plates are connected to the grinding needle... The grinding needle is engaged with a pressing plate installed at the bottom of the first gear. The pressing plate engages with the adjusting plate on the top plate. Due to the shape of the pressing plate, when the first gear drives the pressing plate to rotate, the pressing plate will press the adjusting plate, causing it to move forward. The moved top plate will then press the grinding needle, simulating the reaction force during actual use to ensure more accurate data. Adjusting plates are installed on the top of each of the four top plates. As the first gear continues to rotate, the four top plates will contact the grinding needle in sequence to simulate forces in different directions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the dental handpiece clamping force tester proposed in this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the dental handpiece clamping force tester proposed in this utility model;

[0014] Figure 3 This is a schematic diagram of the fixing mechanism of the dental handpiece clamping force tester proposed in this utility model;

[0015] Figure 4 This is a schematic diagram of the adjustment mechanism of the dental handpiece clamping force tester proposed in this utility model;

[0016] Figure 5 This is a schematic diagram of the clamping mechanism of the dental handpiece clamping force tester proposed in this utility model;

[0017] Figure 6 for Figure 5 A magnified structural diagram at point A in the diagram.

[0018] In the diagram: 1. Main body; 2. First support frame; 3. Second support frame; 4. Clamp; 201. Placement slot; 202. First slot opening; 203. First hydraulic rod; 204. Pressing plate; 301. Second slot opening; 302. Top plate; 303. Support rod; 304. Tension spring; 305. Adjusting plate; 306. T-ring; 307. First gear; 308. Extrusion plate; 309. Motor; 310. Second gear; 401. Second hydraulic rod; 402. Tension sensor; 403. Connecting plate; 404. Third hydraulic rod; 405. Clamping plate; 406. Anti-slip mat; 407. Anti-slip groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1 - Figure 6 A dental handpiece clamping force tester includes a main body 1. A first support frame 2 is fixedly connected to one side of the main body 1. A placement groove 201 is opened on one side of the first support frame 2. A fixing mechanism for fixing the handpiece is provided on the top of the placement groove 201. A second support frame 3 is fixedly connected to the surface of the main body 1 near the first support frame 2. A second slot 301 is opened on the top of the second support frame 3. Four top plates 302 are arranged in a ring evenly on the side of the second support frame 3 near the second slot 301. An adjustment mechanism for adjusting the top plates 302 is provided on the surface of the four top plates 302 away from the second slot 301. A clamp 4 is provided at the bottom of the second support frame 3. A clamping mechanism for clamping the grinding needle is provided inside the clamp 4. The setting of the top plates 302 can ensure that the testing environment of the grinding needle is closer to the actual use situation.

[0021] Preferably, the fixing mechanism includes a first hydraulic rod 203, which is fixedly connected inside the main body 1. A pressing plate 204 is fixedly connected to the output end of the first hydraulic rod 203, and the pressing plate 204 is configured to cooperate with the placement groove 201. A first groove 202 is opened on the surface of the first support frame 2 near the second groove 301, and the first groove 202 is configured to cooperate with the second groove 301. The dental handpiece can be fixed by the pressing plate 204.

[0022] Preferably, the adjusting mechanism includes two support rods 303, both of which are slidably connected to one side of the top plate 302, and the other end of each support rod 303 is fixedly connected to one side of the interior of the second support frame 3. Each support rod 303 is fitted with a tension spring 304, one end of which is fixedly connected to one side of the top plate 302, and the other end of which is fixedly connected to one side of the interior of the second support frame 3. A T-shaped ring 306 is fixedly connected to the bottom of the second support frame 3 near the second slot 301, and a first gear 307 is slidably fitted onto the surface of the T-shaped ring 306. A pressing plate 308 is fixedly connected to the bottom of the first gear 307 near the top plate 302. An adjusting plate 305 is fitted on the surface of the pressing plate 308. The adjusting plate 305 is fixedly connected to the top of the top plate 302. The top plate 302 can be moved by the pressing plate 308. A motor 309 is fixedly connected to the surface of the main body 1 near the second support frame 3. The output shaft of the motor 309 is fixedly connected to the second gear 310 through a coupling. The second gear 310 and the first gear 307 are fitted together. The top plate 302 can be reset by the tension spring 304.

[0023] Preferably, the clamping mechanism includes two second hydraulic rods 401, both of which are fixedly connected to one side of the clamp 4 and are symmetrically arranged. Each output end of the two second hydraulic rods 401 is fixedly connected to a clamping plate 405, which cooperate with each other. Anti-slip pads 406 are fixedly connected to the surface of each clamping plate 405 away from the second hydraulic rods 401, and multiple anti-slip grooves 407 are provided on one side of each anti-slip pad 406. The anti-slip pads 406 ensure a more stable connection between the grinding needle and the clamping plate 405. Four tension sensors 402 are fixedly connected to the bottom of the clamp 4, and are evenly arranged in a square shape. The bottom of each tension sensor 402 is fixedly connected to the same connecting plate 403. A third hydraulic rod 404 is fixedly connected to the interior of the main body 1 near the connecting plate 403. The connecting plate 403 is fixedly connected to the output end of the third hydraulic rod 404. The clamping plates 405 can clamp and fix the grinding needle.

[0024] Working principle: In use, the dental handpiece is placed on top of the placement slot 201. A first slot 202 is provided on one side of the placement slot 201, and the first slot 202 cooperates with the grinding needle at the front end of the dental handpiece, thus ensuring that the dental handpiece can be placed on the first support frame 2. After the dental handpiece is positioned, the first hydraulic rod 203 is activated. A pressing plate 204 is installed at the output end of the first hydraulic rod 203, and the pressing plate 204 cooperates with the dental handpiece and the placement slot 201. Therefore, when the first hydraulic rod 203 moves the pressing plate 204 downward, it can move the dental handpiece. The fixture is fixed by a second support frame 3 and a clamp 4, which are respectively installed at the bottom of the first support frame 2. A second slot 301 is opened at the top of the second support frame 3, so that the grinding needle can pass through the second support frame 3 and enter the interior of the clamp 4. Two second hydraulic rods 401 are installed inside the clamp 4, and clamping plates 405 are installed at the output ends of the two second hydraulic rods 401. Since the grinding needle is located between the two clamping plates 405, the grinding needle can be clamped and fixed when the clamping plates 405 are close together. A tension sensor 402 is installed at the bottom of the clamp 4, and the tension sensor 402 is connected to the third hydraulic rod 403 via a connecting plate 403. The pressure rod 404 is connected, so that when the third hydraulic rod 404 is activated, the clamping force of the dental handpiece can be detected. During the activation of the third hydraulic rod 404, the motor 309 will start accordingly. A second gear 310 is installed on the output shaft of the motor 309, and a first gear 307 is mated on the surface of the second gear 310. So when the motor 309 starts, the first gear 307 will rotate synchronously. Four top plates 302 are installed at the bottom of the first gear 307, and all four top plates 302 are mated with the grinding needle. A pressing plate 308 is installed at the bottom of the first gear 307, and the pressing... Plate 308 works in conjunction with the adjusting plate 305 on the top of top plate 302. Due to the shape of the pressing plate 308, when the first gear 307 drives the pressing plate 308 to rotate, the pressing plate 308 will press the adjusting plate 305, causing it to move forward. The moved top plate 302 will then press the grinding needle, simulating the reaction force during actual use to ensure more accurate data. Adjusting plates 305 are installed on the top of each of the four top plates 302. As the first gear 307 continues to rotate, the four top plates 302 will contact the grinding needle in sequence to simulate forces in different directions.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dental handpiece clamping force tester, comprising a main body (1), characterized in that, The main body (1) is fixedly connected to a first support frame (2) on one side. A placement groove (201) is provided on one side of the first support frame (2). A fixing mechanism for fixing a mobile phone is provided on the top of the placement groove (201). A second support frame (3) is fixedly connected to the surface of the main body (1) near the first support frame (2). A second slot (301) is provided on the top of the second support frame (3). Four top plates (302) are provided inside the second support frame (3) near the second slot (301). The four top plates (302) are arranged in a ring evenly. An adjustment mechanism for adjusting the top plates (302) is provided on the surface of the four top plates (302) away from the second slot (301). A clamp (4) is provided at the bottom of the second support frame (3). A clamping mechanism for clamping the grinding needle is provided inside the clamp (4).

2. The dental handpiece clamping force tester according to claim 1, characterized in that, The fixing mechanism includes a first hydraulic rod (203), which is fixedly connected to the inside of the main body (1). A pressing plate (204) is fixedly connected to the output end of the first hydraulic rod (203), and the pressing plate (204) and the placement groove (201) are mutually cooperated. A first groove (202) is opened on the surface of the first support frame (2) near the second groove (301), and the first groove (202) and the second groove (301) are mutually cooperated.

3. The dental handpiece clamping force tester according to claim 1, characterized in that, The adjustment mechanism includes two support rods (303), both of which are slidably connected to one side of the top plate (302), and the other end of both support rods (303) is fixedly connected to one side of the inside of the second support frame (3). Both support rods (303) are fitted with tension springs (304), one end of both tension springs (304) is fixedly connected to one side of the top plate (302), and the other end of both tension springs (304) is fixedly connected to one side of the inside of the second support frame (3). A T-shaped ring (306) is fixedly connected to the bottom of the second support frame (3) near the second slot (301), and a first gear (307) is slidably fitted on the surface of the T-shaped ring (306).

4. The dental handpiece clamping force tester according to claim 3, characterized in that, The first gear (307) is fixedly connected to the bottom of the side near the top plate (302) with an extrusion plate (308). An adjustment plate (305) is fitted on the surface of the extrusion plate (308). The adjustment plate (305) is fixedly connected to the top of the top plate (302). The main body (1) is fixedly connected to the surface near the second support frame (3) with a motor (309). The output shaft of the motor (309) is fixedly connected to the second gear (310) through a coupling. The second gear (310) and the first gear (307) are configured to cooperate with each other.

5. The dental handpiece clamping force tester according to claim 1, characterized in that, The clamping mechanism includes two second hydraulic rods (401), both of which are fixedly connected to one side of the clamp (4) and are arranged symmetrically. The output ends of the two second hydraulic rods (401) are fixedly connected to clamping plates (405), and the two clamping plates (405) are arranged in cooperation with each other. Anti-slip pads (406) are fixedly connected to the surface of the two clamping plates (405) away from the second hydraulic rods (401), and multiple anti-slip grooves (407) are opened on one side of the two anti-slip pads (406).

6. The dental handpiece clamping force tester according to claim 5, characterized in that, The clamp (4) has four tension sensors (402) fixedly connected to its bottom, and the four tension sensors (402) are evenly arranged in a square shape. The four tension sensors (402) are fixedly connected to the same connecting plate (403) at their bottom. The main body (1) has a third hydraulic rod (404) fixedly connected inside on the side near the connecting plate (403). The connecting plate (403) is fixedly connected to the output end of the third hydraulic rod (404).

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