Positioning clamp for positioning false tooth

Abstract

The utility model discloses a positioning fixture for positioning false teeth, which belongs to the technical field of positioning fixtures and comprises a clamping frame, a sleeve is fixedly mounted on the top wall of the inner side of the clamping frame, a telescopic rod is slidably connected into the sleeve, an upper clamping plate is fixedly mounted at the tail end of the telescopic rod, and a lower clamping plate is mounted at the tail end of the upper clamping plate. Sliding grooves are formed in the two ends of the surface of the bottom end of the inner side of the clamping frame correspondingly, the bottom end of the interior of the clamping frame is movably connected with a two-way screw through a bearing, threaded sleeves are spirally connected to the peripheries of the two ends of the two-way screw, sliding blocks are fixedly installed on the tops of the threaded sleeves, and a lower clamping plate is fixedly installed on the tops of the sliding blocks. The two-way screw is used for driving the two threaded sleeves to move relatively, and the purpose of adjusting the distance between the two lower clamping plates is achieved by matching with driving of the sliding block, so that when false teeth of different sizes and models are clamped, the purpose of stable clamping can be achieved without replacing the clamp, and the applicability of the clamp is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning jigs, and particularly relates to a positioning jig for denture positioning. Background Technique

[0002] With the continuous development of China's economy and the continuous improvement of people's living standards, oral health problems have become an important factor affecting people's quality of life. Therefore, the public pays more and more attention to oral health problems. Especially in the middle-aged and elderly population, the problem of an increasingly serious tooth loss rate has become increasingly prominent, resulting in an increasing demand for dentures. After being used for a period of time, dentures need to be processed and repaired. In order to improve the comfort of denture users when using dentures, the accuracy requirements for the processing and repair of dentures are extremely high.

[0003] At present, most of the existing dentures vary in shape and size from person to person. Due to the complex curved surface, small structural size, and small rigidity of dentures, it is difficult to use conventional jigs for positioning. Moreover, different models and sizes of dentures require different jigs for clamping and positioning. The traditional denture jigs have poor adjustability and low use efficiency. For this reason, we propose a positioning jig for denture positioning. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a positioning jig for denture positioning to solve the existing problems mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A positioning jig for denture positioning, including a clamping frame, an upper clamping plate, and a lower clamping plate. A sleeve is fixedly installed on the inner top wall of the clamping frame. A telescopic rod is slidably connected inside the sleeve. The end of the telescopic rod is fixedly installed with the upper clamping plate. Both ends of the inner bottom surface of the clamping frame are provided with chutes. The inner bottom end of the clamping frame is rotatably connected with a bidirectional screw through a bearing. Threaded sleeves are spirally connected to the outer circumferences of both ends of the bidirectional screw. The top of the threaded sleeve is fixedly installed with a slider. The top of the slider is fixedly installed with the lower clamping plate. The lower clamping plate is placed on the top of the chute and is slidably connected thereto.

[0006] Preferably, the inner top wall of the sleeve is rotatably connected with a clamping screw through a bearing. A threaded groove is opened inside the telescopic rod. The clamping screw extends into the telescopic rod and is spirally connected with the threaded groove.

[0007] Preferably, the top of the clamping screw is fixedly connected with a clamping knob. The clamping knob is placed on the top of the clamping frame and is rotatably connected thereto through a bearing.

[0008] Preferably, limiting blocks are fixedly arranged on both sides of the top end of the telescopic rod. The limiting blocks are fixedly connected to the telescopic rod by welding.

[0009] Preferably, limiting grooves are formed on the inner wall surfaces of both sides inside the sleeve, and the limiting blocks extend into the limiting grooves and are slidably connected to their inner walls.

[0010] Preferably, one end of the bidirectional screw passes through the bottom shell of the clamping frame and extends to the outside, and an adjusting knob is fixedly connected to the end of the bidirectional screw extending to the outside.

[0011] Preferably, a spacer sleeve is arranged in the middle of the bidirectional screw, and the spacer sleeve is sleeved on the middle of the bidirectional screw and fixedly connected to it.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By providing a sliding groove at the inner bottom end of the clamping frame and using a bidirectional screw to drive two threaded sleeves to move relatively, with the drive of the slider, the purpose of adjusting the distance between the two lower clamping plates is achieved, so that when clamping dentures of different sizes and models, it is possible to achieve stable clamping without replacing the fixture, greatly improving the applicability of the fixture.

[0014] 2. By providing limiting grooves on the inner wall surfaces of both sides inside the sleeve and cooperating with the limiting blocks on both sides of the top end of the telescopic rod, the telescopic rod is limited, avoiding the telescopic rod rotating synchronously with the clamping screw during the rotation of the clamping screw, thus losing the extension function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the sleeve structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the bidirectional screw structure of the present utility model.

[0018] In the figure: 1, clamping frame; 2, sleeve; 3, telescopic rod; 4, upper clamping plate; 5, clamping screw; 6, clamping knob; 7, limiting groove; 8, limiting block; 9, sliding groove; 10, lower clamping plate; 11, slider; 12, threaded sleeve; 13, bidirectional screw; 14, adjusting knob; 15, spacer sleeve; 16, threaded groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-3 , the present utility model provides a technical solution for a positioning fixture for denture positioning: including a clamping frame 1, an upper clamping plate 4 and a lower clamping plate 10. A sleeve 2 is fixedly installed on the inner top wall of the clamping frame 1. A telescopic rod 3 is slidably connected inside the sleeve 2. The end of the telescopic rod 3 is fixedly installed with an upper clamping plate 4. Both ends of the inner bottom surface of the clamping frame 1 are provided with sliding grooves 9. The inner bottom end of the clamping frame 1 is rotatably connected with a bidirectional screw 13 through a bearing. Threaded sleeves 12 are spirally connected to the outer peripheries of both ends of the bidirectional screw 13. The top of the threaded sleeve 12 is fixedly installed with a slider 11. The top of the slider 11 is fixedly installed with a lower clamping plate 10. The lower clamping plate 10 is placed on the top of the sliding groove 9 and is slidably connected therewith.

[0021] Specifically, the inner top wall of the sleeve 2 is rotatably connected with a clamping screw 5 through a bearing. A threaded groove 16 is opened inside the telescopic rod 3. The clamping screw 5 extends into the telescopic rod 3 and is spirally connected with the threaded groove 16.

[0022] Specifically, the top of the clamping screw 5 is fixedly connected with a clamping knob 6. The clamping knob 6 is placed on the top of the clamping frame 1 and is rotatably connected therewith through a bearing.

[0023] Specifically, limiting blocks 8 are fixedly arranged on both sides of the top end of the telescopic rod 3. The limiting blocks 8 are fixedly connected with the telescopic rod 3 by welding.

[0024] Specifically, limiting grooves 7 are opened on the inner surface of both side inner walls of the sleeve 2. The limiting blocks 8 extend into the limiting grooves 7 and are slidably connected with the inner walls thereof.

[0025] Specifically, one end of the bidirectional screw 13 passes through the bottom shell of the clamping frame 1 and extends to the outside. The end of the bidirectional screw 13 extending to the outside is fixedly connected with an adjusting knob 14.

[0026] Specifically, a spacer sleeve 15 is arranged in the middle of the bidirectional screw 13. The spacer sleeve 15 is sleeved on the middle of the bidirectional screw 13 and is fixedly connected therewith.

[0027] In this embodiment, during use, according to the size model of the denture, by rotating the adjustment knob 14, the bidirectional screw 13 is driven to rotate, and then in cooperation with the threaded sleeves 12 at both ends of the bidirectional screw 13, the slider 11 is driven to slide inside the chute 9, so as to adjust the relative positions of the two lower clamping plates 10, so that the two lower clamping plates 10 can fit the two ends of the denture and make it stable inside the two lower clamping plates 10. Then, by rotating the clamping knob 6, the clamping screw 5 is driven to rotate, and in cooperation with the threaded groove 16 inside the telescopic rod 3, as well as the limiting groove 7 and the limiting block 8, the telescopic rod 3 can perform limited sliding inside the sleeve 2, realizing the driving of the telescopic rod 3 to extend outward, thereby driving the upper clamping plate 4 to clamp the middle part of the denture. Cooperating with the two lower clamping plates 10, the purpose of stable clamping is achieved. Such a design enables stable clamping of dentures of different sizes and models without replacing the fixture, and only by adjusting the distance between the two lower clamping plates 10, greatly improving the applicability.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for positioning a denture, comprising a clamping frame (1), an upper clamping plate (4) and a lower clamping plate (10), characterized in that: A sleeve (2) is fixedly installed on the inner top wall of the clamping frame (1), a telescopic rod (3) is slidably connected inside the sleeve (2), an upper clamping plate (4) is fixedly installed on the end of the telescopic rod (3), both ends of the inner bottom surface of the clamping frame (1) are provided with sliding grooves (9), the inner bottom end of the clamping frame (1) is movably connected to a bidirectional screw rod (13) through a bearing, the outer circumference of both ends of the bidirectional screw rod (13) is spirally connected to a threaded sleeve (12), a slider (11) is fixedly installed on the top of the threaded sleeve (12), and a lower clamping plate (10) is fixedly installed on the top of the slider (11), and the lower clamping plate (10) is placed on the top of the sliding groove (9) and is slidably connected thereto.

2. A positioning fixture for positioning dentures according to claim 1, characterized in that: The inner top wall of the sleeve (2) is movably connected to a clamping screw (5) via a bearing, a thread groove (16) is provided inside the telescopic rod (3), and the clamping screw (5) extends into the interior of the telescopic rod (3) and is spirally connected to the thread groove (16).

3. A positioning fixture for positioning dentures according to claim 2, characterized in that: The top of the clamping screw (5) is fixedly connected to a clamping knob (6), and the clamping knob (6) is placed on the top of the clamping frame (1) and movably connected thereto via a bearing.

4. A positioning fixture for positioning a denture according to claim 1, characterized in that: Limit blocks (8) are fixedly arranged on both sides of the top end of the telescopic rod (3), and the limit blocks (8) are fixedly connected to the telescopic rod (3) by welding.

5. A positioning fixture for positioning a denture according to claim 4, characterized in that: The inner wall surfaces on both sides of the sleeve (2) are provided with limiting grooves (7), and the limiting blocks (8) extend into the limiting grooves (7) and are slidably connected to the inner walls thereof.

6. A positioning fixture for positioning dentures according to claim 1, characterized in that: One end of the bidirectional screw (13) passes through the bottom shell of the clamping frame (1) and extends to the outside. The end of the bidirectional screw (13) extending to the outside is fixedly connected to an adjusting knob (14).

7. A positioning fixture for positioning dentures according to claim 1, characterized in that: A spacer sleeve (15) is arranged in the middle of the bidirectional screw rod (13), and the spacer sleeve (15) is sleeved on the middle of the bidirectional screw rod (13) and fixedly connected thereto.

Images