Improved spatula for department of stomatology
By using metal knife body and wood handle in the dentistry mixing knife, and using spring and limit plate design, the existing mixing knife has solved the problem of exhaustion and uneven materials caused by the wrist work, making it easier operation and efficient stirring effect.
Patent Information
- Application Number
- CN202420939892.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The wood or metal handle of the existing dentistry mixer knife causes exhaustion on the wrist during long-term use, which can easily cause tenosynovitis, and the stirring material is uneven.
An improved dentistry mixing knife was designed, using a metal knife body and a wood knife handle. By setting a spring between the knife body and the knife handle, the elastic potential energy of the spring makes the knife body swing easier, and the limit plate is added The design of the chute is for easy operation, and friction particles are provided on the outer wall of the tool holder to improve the anti-slip effect.
It reduces the force on the wrist, improves the stirring efficiency, makes the gypsum material uniformly subjects to stress, reduces operating fatigue, and enhances the flexibility and practicality of the equipment.
Smart Images
Figure CN222265456U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to an improved oral mixing knife. Background Art
[0002] The mixing knife is mainly used to mix powder and liquid raw materials. In the oral cavity, when glass ionomer powder, liquid or other powder and liquid materials are mixed in proportion, it is necessary to hold the handle of the mixing knife to mix the powder and liquid. Repeated mixing can fully mix the powder and liquid on the mixing paper or glass plate. It is mainly used to mix oral materials such as Fuji, glass ionomer or calcium hydroxide;
[0003] The handle of a conventional oral mixing knife is made of wood, and the handle is made of metal. The stainless steel part is deeply embedded in the wooden handle. For people with stiff wrists, the wrist strength is uneven when mixing plaster. During the long-term mixing of plaster, the mixing knife has no elasticity, which makes the wrist tired. Long-term operation can easily cause tenosynovitis and lead to uneven mixing of materials. Utility Model Content
[0004] The utility model aims to provide an improved oral mixing knife, which has the characteristics of flexible use, convenient operation, reduced wrist force, more energy-saving operation for medical personnel, uniform force on gypsum materials, and improved mixing efficiency.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved oral mixing knife, comprising a knife body and a knife handle, one end of the knife body is fixedly connected to a connecting head, a spring is fixedly connected between the knife handle and the connecting head, the knife handle is internally movably connected to a limiting plate, an end of the connecting head close to the knife handle is provided with a limiting groove, an outer wall of the knife handle is provided with a sliding groove, an outer wall of the sliding groove is slidably connected to a slider, an outer wall of the limiting plate is fixedly connected to a connecting rod, and the connecting rod extends to the outside of the knife handle through the sliding groove and is fixedly connected to the slider.
[0006] In order to facilitate the limitation of the knife body, as a preferred improved oral mixing knife of the utility model, the limiting groove and the limiting piece match each other.
[0007] In order to improve the strength, as a preferred improved oral mixing knife of the utility model, the knife body and the limiting piece are both made of metal, and the knife handle is made of wood.
[0008] In order to allow the limiting piece to move inside the spring, as a preferred improved oral mixing knife of the utility model, the width of the limiting piece is smaller than the inner circle diameter of the spring.
[0009] In order to fix the position of the limiting piece, as a preferred improved oral mixing knife of the utility model, the sliding block and the sliding groove are tightly slidably connected.
[0010] In order to improve the anti-slip effect of the knife handle, as a preferred improved oral mixing knife of the utility model, the outer wall of the knife handle is provided with a plurality of friction particles.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] A spring is arranged between the knife body and the knife handle. By arranging the spring, the knife body can utilize the elastic potential energy of the spring during the swinging process, so that the knife body can swing more easily and labor-savingly, is more flexible and convenient to operate when mixing gypsum materials, reduces wrist force, enables medical personnel to operate more labor-savingly, makes the gypsum material evenly stressed, and improves the mixing efficiency. When the raw materials need to be scooped up, the limiting plate can be driven to move by the sliding slider, and the limiting plate extends through the inner side of the spring to the inside of the limiting groove of the connecting head, so that the knife body is limited and fixed by the limiting plate, so that the knife body is no longer in a flexible state, which is conducive to operation. The equipment has a simple structure, convenient and flexible switching of operation modes, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is the overall main structural diagram of the utility model;
[0014] Figure 2 This is a cross-sectional structural diagram of the tool handle of the utility model;
[0015] Figure 3 This is a top view of the connector of the utility model.
[0016] In the figure: 1. knife body; 2. knife handle; 3. connector; 4. spring; 5. limit plate; 6. slide groove; 7. connecting rod; 8. slide block; 9. limit groove; 10. friction particles. DETAILED DESCRIPTION
[0017] See also Figures 1 to 3 A modified oral mixing knife comprises a knife body 1 and a knife handle 2, one end of the knife body 1 is fixedly connected with a connector 3, a spring 4 is fixedly connected between the knife handle 2 and the connector 3, a limiting plate 5 is movably connected inside the knife handle 2, a limiting groove 9 is provided at one end of the connector 3 close to the knife handle 2, a sliding groove 6 is provided on the outer wall of the knife handle 2, a slider 8 is slidably connected to the outer wall of the sliding groove 6, a connecting rod 7 is fixedly connected to the outer wall of the limiting plate 5, and the connecting rod 7 extends to the outside of the knife handle 2 through the sliding groove 6 and is fixedly connected to the slider 8.
[0018] In the present embodiment: a spring 4 is arranged between the knife body 1 and the knife handle 2. By arranging the spring 4, the knife body 1 can utilize the elastic potential energy of the spring 4 during the swinging process, so that the knife body 1 can swing more easily and labor-savingly, and it is more flexible and convenient to operate when mixing gypsum materials, and the wrist force is reduced, so that the medical staff can operate more labor-savingly, and the gypsum material is evenly stressed, and the mixing efficiency is improved. When the raw materials need to be scooped up, the limiting plate 5 can be driven to move by the sliding slider 8. The limiting plate 5 extends through the inner side of the spring 4 to the inside of the limiting groove 9 of the connecting head 3, so that the knife body 1 is limited and fixed by the limiting plate 5, so that the knife body 1 is no longer in a flexible state, which is conducive to operation. The equipment has a simple structure, convenient and flexible switching of operation modes, and strong practicality.
[0019] As a technical optimization solution of the present invention, the limiting groove 9 and the limiting piece 5 match each other.
[0020] In this embodiment, the limiting groove 9 matches the limiting piece 5 , so that the limiting piece 5 extends into the limiting groove 9 to fix the blade body 1 .
[0021] As a technical optimization solution of the present utility model, the knife body 1 and the limiting plate 5 are both made of metal, and the knife handle 2 is made of wood.
[0022] In this embodiment, the blade body 1 and the limiting plate 5 are both made of metal, which has high strength, strong rigidity and prolonged service life; the blade handle 2 is made of wood, which is comfortable to hold and lightens weight.
[0023] As a technical optimization solution of the present invention, the width of the limiting piece 5 is smaller than the inner circle diameter of the spring 4 .
[0024] In this embodiment, the width of the limiting piece 5 is smaller than the inner diameter of the spring 4 , so that the limiting piece 5 can move flexibly inside the spring 4 .
[0025] As a technical optimization solution of the present invention, the slider 8 and the slide groove 6 are tightly slidably connected.
[0026] In this embodiment, the slider 8 and the slide groove 6 are tightly slidably connected, so that the limiting piece 5 can be fixed after being retracted into the handle 2.
[0027] As a technical optimization solution of the present invention, a plurality of friction particles 10 are provided on the outer wall of the handle 2 .
[0028] In this embodiment: the outer wall of the knife handle 2 is provided with a plurality of friction particles 10, which improves the friction of the outer wall of the knife handle 2 and improves the anti-slip property of gripping.
[0029] Working principle: By setting the spring 4, the elastic potential energy of the spring 4 is utilized during the swinging process of the knife body 1, so that the knife body 1 can swing more easily and labor-savingly, and it is more flexible and convenient to operate when mixing the gypsum material, and the wrist force is reduced, so that the medical staff can operate more labor-savingly, and the gypsum material is evenly stressed, and the mixing efficiency is improved. When the raw materials need to be scooped up, the limiting plate 5 can be driven to move by the sliding slider 8. The limiting plate 5 extends through the inner side of the spring 4 to the inside of the limiting groove 9 of the connecting head 3, so that the knife body 1 is limited and fixed by the limiting plate 5, so that the knife body 1 is no longer in a flexible state, which is conducive to operation.
[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An improved oral mixing knife, comprising a knife body (1) and a knife handle (2), characterized in that: One end of the knife body (1) is fixedly connected to a connector (3), a spring (4) is fixedly connected between the knife handle (2) and the connector (3), the knife handle (2) is internally movably connected to a limiting plate (5), one end of the connector (3) close to the knife handle (2) is provided with a limiting groove (9), the outer wall of the knife handle (2) is provided with a sliding groove (6), the outer wall of the sliding groove (6) is slidably connected to a slider (8), the outer wall of the limiting plate (5) is fixedly connected to a connecting rod (7), the connecting rod (7) extends to the outside of the knife handle (2) through the sliding groove (6) and is fixedly connected to the slider (8).
2. The improved oral mixing knife according to claim 1, characterized in that: The limiting groove (9) and the limiting piece (5) match each other.
3. The improved oral mixing knife according to claim 1, characterized in that: The knife body (1) and the limiting plate (5) are both made of metal, and the knife handle (2) is made of wood.
4. The improved oral mixing knife according to claim 1, characterized in that: The width of the limiting piece (5) is smaller than the inner ring diameter of the spring (4).
5. The improved oral mixing knife according to claim 1, characterized in that: The slider (8) and the slide groove (6) are tightly slidably connected.
6. The improved oral mixing knife according to claim 1, characterized in that: The outer wall of the knife handle (2) is provided with a plurality of friction particles (10).