A dental jawbone plaster model fixator

By using sliding jaws and locking handles to clamp dental articulator plaster models, the problems of low efficiency and expansion deformation of traditional plaster bonding are solved, achieving efficient and clean articulator fixation.

CN224441493UActive Publication Date: 2026-07-03HEILONGJIANG KEGUANG PRECISION MACHINERY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG KEGUANG PRECISION MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing methods for fixing dental jawbone plaster models are inefficient, and the expansion of the plaster during drying causes data changes, pollutes the environment, and is difficult to clean.

Method used

A dental articulation plaster model is fixed by using sliding jaws and locking handles. Horizontal grooves are opened on adjacent high and low sliding plates, and the plaster model is clamped by sliding jaws and locking handles to avoid plaster adhesion.

Benefits of technology

It improves work efficiency, avoids plaster expansion and deformation and environmental pollution, and simplifies the cleaning process.

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Abstract

A dental articulation plaster model fixator, belonging to the field of denture processing technology, addresses the problems associated with fixing dental articulation plaster models using plaster bonding. It includes a base with two horizontal grooves offset vertically at an angle. Two sets of clamping jaws correspond one-to-one with the two horizontal grooves. Each clamping jaw set includes two sliding jaws, the connecting ends of which are slidably positioned within the corresponding horizontal groove. A connecting screw passes through one of the sliding jaws, one end of which is connected to the other sliding jaw, and the other end is threaded to a locking handle. The clamping ends of the two sliding jaws extend out of the two ends of the horizontal grooves and bend upwards, extending above the base and facing each other. This invention eliminates the shortcomings of traditional dental articulation plaster models that require plaster bonding for fixation.
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Description

Technical Field

[0001] This utility model belongs to the field of dental prosthesis processing technology, and in particular relates to a dental jawbone plaster model fixator. Background Technology

[0002] Currently, dental articulation systems generally use plaster bonding to fix plaster models, which has the following two drawbacks:

[0003] 1. Low efficiency: It requires waiting for the plaster to dry and solidify before proceeding to the next step, which prolongs the doctor's working time and increases the time cost of production.

[0004] 2. The working environment is dirty. The plastering process pollutes the environment, making the originally clean and exquisite work site extremely rough. It also seriously contaminates the expensive jaw frame, which is time-consuming and laborious to clean.

[0005] 3. Traditional dental plaster models of the maxilla are made by plaster pouring. Because the plaster expands during the drying process, the data originally collected from the patient's mouth will be slightly changed during the replication of the model. This affects the doctor's accuracy in making the model, causing discomfort to the patient and leading to failure. Utility Model Content

[0006] The purpose of this invention is to provide a fixator for dental articulated plaster models, thereby solving the problems associated with using plaster adhesive to fix dental articulated plaster models. The technical solution adopted by this invention is as follows:

[0007] A dental jaw model fixator includes a base with two horizontal grooves staggered vertically and forming an included angle. Two sets of clamping jaws correspond one-to-one with the two horizontal grooves. Each set of clamping jaws includes two sliding jaws. The connecting ends of the sliding jaws are slidably disposed in the corresponding horizontal groove. A connecting screw passes through one of the sliding jaws, one end of which is connected to the other sliding jaw, and the other end of which is threadedly connected to a locking handle. The clamping ends of the two sliding jaws respectively protrude from both ends of the horizontal grooves and bend upwards, extending to the top of the base and then facing each other.

[0008] Furthermore, the locking handle is equipped with anti-slip texture.

[0009] Furthermore, the clamping end of the sliding gripper is provided with clamping teeth.

[0010] Furthermore, the substrate includes a clamping plate, two slide plates, and a fixed support plate arranged sequentially from top to bottom, with a horizontal slide groove provided on each slide plate.

[0011] Furthermore, the fixed support plate is in the shape of an isosceles trapezoid, with rounded corners at its four corners, and the outlines of the clamping plate, slide plate, and fixed support plate are flush.

[0012] Furthermore, the fixed support plate is provided with several positioning pins and screw holes, and the clamping plate and slide plate are provided with several pin holes. The pin holes on the slide plate are matched with several positioning pins one by one, and the pin holes on the clamping plate are matched with several positioning pins one by one. The fastening screws pass through the clamping plate and the two slide plates in sequence and are connected with the screw holes.

[0013] Furthermore, the slide plate is composed of two triangular plates, and the gap between the two triangular plates forms a set of horizontal slide grooves arranged diagonally along the slide plate. The number of positioning pins is at least four, and each of the triangular plates is positioned by at least two positioning pins.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention employs horizontal grooves created on adjacent sliding plates of varying heights. Two pairs of sliding jaws and locking handles, slidably positioned within these grooves, clamp the dental articulation plaster model. When the two pairs of sliding jaws cross-clamp the model, it is permanently fixed in place. The serrated clamping teeth on the clamping ends of the sliding jaws allow them to deeply embed themselves into the plaster model, preventing movement. Finally, tightening the fixing screws allows the dental articulation plaster model to be fixed at any angle and position. This eliminates the shortcomings of traditional methods that require plaster bonding to fix dental articulation plaster models, improving work efficiency and avoiding defects caused by plaster expansion and deformation, as well as the drawbacks of long processing times and a dirty environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a top view of the fixed support plate;

[0020] Figure 5 This is an exploded view of the gripper assembly.

[0021] In the diagram, 1. clamping plate, 2. fastening screw, 3. positioning pin, 4. clamping teeth, 5. sliding jaws, 6. locking handle, 7. anti-slip texture, 8. slide plate, 9. fixed support plate, 10. connecting screw, 11. pin hole, 12. screw hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0023] The connections mentioned in this utility model are divided into fixed connections and detachable connections. Fixed connections, also known as non-detachable connections, include but are not limited to conventional fixed connection methods such as folded connections, riveted connections, adhesive connections, and welded connections. Detachable connections include but are not limited to conventional disassembly methods such as bolt connections, snap-fit ​​connections, pin connections, and hinge connections. When a specific connection method is not explicitly defined, it is assumed that at least one existing connection method can be found to achieve this function, and those skilled in the art can choose according to their needs. For example, a welded connection can be chosen for a fixed connection, and a bolted connection can be chosen for a detachable connection.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0025] Example: Figures 1-5 As shown, a dental jaw model fixator includes a base with two horizontal grooves staggered vertically and forming an angle. Two sets of clamping jaws correspond one-to-one with the two horizontal grooves. Each set of clamping jaws includes two sliding jaws 5. The connecting ends of the sliding jaws 5 are slidably disposed in the corresponding horizontal groove. A connecting screw 10 passes through one of the sliding jaws 5. One end of the connecting screw 10 is connected to the other sliding jaw 5, and the other end of the connecting screw 10 is threadedly connected to a locking handle 6. The clamping ends of the two sliding jaws 5 respectively protrude from both ends of the horizontal grooves and bend upwards, extending to the top of the base and then facing each other.

[0026] Tightening the locking handle 6 adjusts the distance between the two sliding jaws 5, which is used to remove or clamp the dental articulation plaster model. This utility model uses horizontal grooves on adjacent sliding plates 8 at different heights. The dental articulation plaster model is clamped by two pairs of sliding jaws 5 and locking handle 6 that are slidably set in the horizontal grooves. When the two pairs of sliding jaws 5 cross-clamp the dental articulation plaster model, the dental articulation plaster model can be fixed in place. This eliminates the shortcomings of traditional dental articulation plaster models that need to be fixed by plaster adhesive, improves work efficiency, and avoids defects caused by plaster expansion and deformation, as well as various drawbacks such as long time and dirty environment.

[0027] This invention can also be applied to fixing irregularly shaped workpieces at any position in various industries. It is particularly advantageous in fixing plaster models in dental jawbone systems. The method of fixing by multiple sets of sliding jaws is a proprietary innovation. This method can be used to develop various clamps and has a wide range of applications.

[0028] The locking handle 6 has anti-slip texture 7.

[0029] The clamping end of the sliding jaw 5 is equipped with clamping teeth 4. Because the clamping end of the sliding jaw 5 is equipped with serrated clamping teeth 4, it can be deeply inserted into the plaster model, making it unable to move. Finally, by tightening the fastening screw 2, the dental jaw model can be fixed at any angle and position.

[0030] The base includes, from top to bottom, a clamping pressure plate 1, two slide plates 8, and a fixing support plate 9, each slide plate 8 having a horizontal groove. This arrangement facilitates the processing of the horizontal groove.

[0031] The fixed support plate 9 is an isosceles trapezoid with rounded corners at its four corners. The outlines of the clamping pressure plate 1, the slide plate 8, and the fixed support plate 9 are flush. This allows the base to be compact and aesthetically pleasing.

[0032] The fixed support plate 9 is provided with a number of positioning pins 3 and screw holes 12. The clamping pressure plate 1 and the slide plate 8 are provided with a number of pin holes 11. The pin holes 11 on the slide plate 8 are matched one-to-one with the positioning pins 3. The pin holes 11 on the clamping pressure plate 1 are matched one-to-one with the positioning pins 3. The fastening screws 2 pass through the clamping pressure plate 1 and the two slide plates 8 in sequence and are connected with the screw holes 12.

[0033] The slide plate 8 consists of two triangular plates, and the gap between the two triangular plates forms a set of diagonally arranged horizontal grooves along the slide plate 8. The number of locating pins 3 is at least four, and each of the triangular plates is positioned by at least two locating pins 3. This arrangement further facilitates the processing of the horizontal grooves.

[0034] The above embodiments are merely illustrative examples of the present utility model and do not limit its scope of protection. Those skilled in the art can make partial changes to it, as long as they do not exceed the spirit and essence of the present utility model, they are all within the scope of protection of the present utility model.

Claims

1. A dental articulator plaster model holder characterized by: The system includes a base with two horizontal grooves. The two horizontal grooves are staggered vertically and form an angle. Two sets of gripper groups correspond one-to-one with the two horizontal grooves. Each set of gripper groups includes two sliding grippers (5). The connecting ends of the sliding grippers (5) are slidably disposed in the corresponding horizontal grooves. A connecting screw (10) passes through one of the sliding grippers (5). One end of the connecting screw (10) is connected to the other sliding gripper (5). The other end of the connecting screw (10) is threadedly connected to the locking handle (6). The clamping ends of the two sliding grippers (5) respectively pass through the two ends of the horizontal grooves and bend upwards, extending to the top of the base and then facing each other.

2. A dental cast holder according to claim 1, characterized in that: The locking handle (6) has anti-slip texture (7).

3. A dental cast holder according to claim 1, wherein: The clamping end of the sliding jaw (5) is provided with clamping teeth (4).

4. A dental cast holder according to any one of claims 1-3, characterized in that: The base includes a clamping plate (1), two slide plates (8) and a fixed support plate (9) arranged from top to bottom, with a horizontal slide groove on each slide plate (8).

5. A dental cast holder according to claim 4, wherein: The fixed support plate (9) is an isosceles trapezoid with rounded corners at the four corners. The outlines of the clamping pressure plate (1), the slide plate (8) and the fixed support plate (9) are flush.

6. A dental cast holder according to claim 5, wherein: The fixed support plate (9) is provided with a number of positioning pins (3) and screw holes (12). The clamping plate (1) and the slide plate (8) are provided with a number of pin holes (11). The pin holes (11) on the slide plate (8) are matched with the positioning pins (3) one by one. The pin holes (11) on the clamping plate (1) are matched with the positioning pins (3) one by one. The fastening screws (2) pass through the clamping plate (1) and the two slide plates (8) in sequence and are connected with the screw holes (12).

7. A dental jawbone plaster model fixator according to claim 6, characterized in that: The slide plate (8) is composed of two triangular plates, and the gap between the two triangular plates forms a set of diagonally arranged horizontal slide grooves along the slide plate (8). The number of positioning pins (3) is at least four, and each of the triangular plates is positioned by at least two positioning pins (3).