CN214773126U

CN214773126U - Special carving tool for porcelain feeding in dentistry

Info

Publication number: CN214773126U
Application number: CN202121352438.8U
Authority: CN
Inventors: 骆丽
Original assignee: Chengdu Jindian Dental Technology Development Co ltd
Current assignee: Chengdu Jindian Dental Technology Development Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-11-19
Anticipated expiration: 2031-06-17

Abstract

The utility model relates to a special engraving knife for dental porcelain, belonging to the technical field of false tooth manufacturing auxiliary equipment, comprising a knife handle and a blade arranged on the knife handle, wherein one end of the knife handle is provided with a knife head for installing the blade, the knife head is provided with an installation opening, the blade is positioned in the installation opening, the side wall of the knife head and positioned at the installation opening is provided with a limit block, and the blade is provided with a groove for the limit block to enter the installation groove; the cutter head is provided with a fixing piece for fixing the blade. This application has the effect of reduce cost's input.

Description

Special carving tool for porcelain feeding in dentistry

Technical Field

The application relates to the technical field of false tooth manufacturing auxiliary equipment, in particular to a special engraving knife for porcelain in dentistry.

Background

Artificial teeth are the artificial teeth often mentioned. As the leg prosthesis and the artificial limb are called artificial limbs, the artificial tooth means the tooth which is fully obligated for human beings. The medical science is a general term for restorations made after partial or all teeth of the upper and lower jaws are lost; the main material of the false tooth is porcelain powder, the main components of the porcelain powder are feldspar, kaolin, quartz, fluxing agent, colorant, fluorescent agent and the like, and the false tooth is manufactured by sintering, hot pressing, infiltration, electrophoresis and other methods. After the denture is made, the denture needs to be back-cut and sculptured with a sculpturing knife to ensure that it is suitable for the user. At present, a graver generally comprises a handle and a blade arranged on the handle; the hand-held knife handle is used for carving the false teeth, and the operation is simple and convenient.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the false tooth has better wearability, when the blade carves the false tooth, the wearing and tearing of blade are great, consequently need to change new carving tool, lead to the input quantity of carving tool great.

SUMMERY OF THE UTILITY MODEL

For reduce cost's input, this application provides a special carving tool of porcelain on dentistry.

The application provides a special carving tool for porcelain in dentistry adopts following technical scheme:

a special engraving knife for porcelain application in dentistry comprises a knife handle and a blade arranged on the knife handle, wherein one end of the knife handle is provided with a knife head for mounting the blade, the knife head is provided with a mounting opening, the blade is positioned in the mounting opening, a limiting block is arranged on the knife head and positioned on the side wall of the mounting opening, and the blade is provided with a mounting groove for the limiting block to enter; the cutter head is provided with a fixing piece for fixing the blade.

By adopting the technical scheme, when the blade is worn, the blade is taken down from the cutter head, then a new blade is installed in the installation opening, the limit block is inserted in the installation opening of the blade, and the blade is positioned, so that the blade is conveniently fixed on the cutter head; meanwhile, under the action of the limiting block and the mounting groove, the limiting function is realized on the blade, the possibility of shaking and inclining of the blade in the use process is reduced, and the false tooth can be conveniently carved; the blade is fixed on the cutter head through the fixing piece, so that the possibility that the blade falls off carelessly is reduced; through changing the blade of wearing and tearing, reduced the input quantity of carving tool, and then reduced the input cost.

Optionally, the fixing member includes a bolt screwed to the blade, and the bolt abuts against the blade.

By adopting the technical scheme, when the blade is fixed, the bolt is screwed to enable the bolt to be abutted against the blade, so that the blade is fixed on the cutter head, and the operation is simple and convenient; meanwhile, the bolt has self-locking performance, and the fixing effect on the blade is improved.

Optionally, a rubber pad for abutting against the blade is rotatably arranged on the bolt.

By adopting the technical scheme, under the action of the rubber pad, the possibility that the blade is damaged by the bolt is reduced, and the service life of the blade is prolonged; meanwhile, under the action of the rubber pad, the contact area of the bolt and the blade is increased, and the fixing effect of the blade is improved; the rubber pad is rotatably arranged on the bolt, so that the bolt can be conveniently screwed to fix the blade.

Optionally, the tool bit is provided with a countersunk groove for the head of the bolt to enter.

Through adopting above-mentioned technical scheme, under the effect of countersunk head groove, accomodate the head of bolt in the countersunk head groove, reduced the influence that the bolt used to the blade, the staff of being convenient for uses the carving tool to carve the artificial tooth.

Optionally, the tool bit is detachably connected to the tool shank.

Through adopting above-mentioned technical scheme, the connection can be dismantled on the handle of a knife to the tool bit, is convenient for to the change of the tool bit of damage and remain the handle of a knife, has further reduced the input cost.

Optionally, a threaded section is arranged on the tool shank, and a threaded groove for threaded connection of the threaded section is formed in the tool bit.

By adopting the technical scheme, when the tool bit is installed, the tool handle is screwed, and the tool bit is fixed on the tool handle under the action of the thread section and the thread groove, so that the operation is simple and convenient; simultaneously, have fixed effectual advantage.

Optionally, a slot for inserting the tool holder is formed in the tool bit, a fixing block is arranged on the tool holder in a sliding mode, a clamping groove for clamping the fixing block is formed in the side wall, located in the slot, of the tool bit, and an elastic piece for driving the fixing block to slide into the clamping groove is arranged on the tool holder.

Through adopting above-mentioned technical scheme, when installing tool bit to the handle of a knife, peg graft the handle of a knife in the slot of tool bit to make fixed block and joint groove be located same straight line, under the effect of elastic component, order about the fixed block and slide and get into the joint inslot, and then fix the tool bit on the handle of a knife, easy operation is convenient.

Optionally, a sliding chute for the fixing block to slide is formed in the knife handle, the elastic part comprises a first spring arranged in the sliding chute, one end of the first spring is arranged on the bottom wall of the sliding chute, and the other end of the first spring is arranged on the fixing block.

Through adopting above-mentioned technical scheme, the handle of a knife is at the in-process that gets into the tool bit, and first spring is in the state of compression, after the spout aligns with the joint groove, under the effect of first spring elasticity, orders about the fixed block and slides and get into the joint inslot, and first spring has simple structure, the advantage of easily acquireing.

Optionally, the joint groove runs through the tool bit, the last just being located of tool bit slip in the joint groove is provided with the pressing block that is used for the butt fixed block.

Through adopting above-mentioned technical scheme, when the tool bit is taken off to needs, press the pressing block, drive the fixed block according to the pressing block and slide and break away from the joint groove and accomodate into the spout, be convenient for take off the tool bit and change.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the worn blade is convenient to replace by replacing the blade, so that the investment quantity of the graver is reduced, and the investment cost is reduced;

2. by replacing the tool bit, the investment quantity of the gravers is further reduced, and the investment of cost is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is an exploded view of example 1 of the present application;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a side view of an exploded schematic view of example 1 of the present application;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

FIG. 6 is a cross-sectional view of embodiment 2 of the present application;

fig. 7 is an enlarged schematic view of a portion B in fig. 6.

Description of reference numerals: 1. a knife handle; 2. a blade; 3. a cutter head; 4. an installation port; 5. a limiting block; 6. mounting grooves; 7. a fixing member; 71. a bolt; 72. a rubber pad; 8. a countersunk groove; 9. a threaded segment; 10. a thread groove; 11. a slot; 12. a fixed block; 13. a chute; 14. a clamping groove; 15. an elastic member; 151. a first spring; 16. a pressing block; 17. a second spring; 18. and a third spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Example 1

Referring to fig. 1, the dental porcelain engraving knife comprises a knife handle 1, in the embodiment, the knife handle 1 is cylindrical, so that a user can conveniently hold the knife handle 1 for engraving, and the knife handle 1 can be made of a wood material or a plastic material; one end of the knife handle 1 is provided with a blade 2, so that the false tooth can be conveniently shaped, cut back and the like, in the embodiment, the blade 2 can be made of a razor blade or a stainless steel plate with the thickness of 0.2mm, and the materials have the advantages of thinness, softness and good toughness, so that the relevant operation of a user is convenient;

referring to fig. 2 and 3, in order to facilitate mounting the blade 2 on the handle 1, a cutting head 3 for mounting the blade 2 is disposed at one end of the handle 1, and in this embodiment, the cutting head 3 is in a circular truncated cone shape; the cutter head 3 is provided with a mounting opening 4, and the blade 2 is positioned in the mounting opening 4; combine fig. 4 and fig. 5, on tool bit 3 and be located the lateral wall of installing port 4 integrated into one piece stopper 5, in this embodiment, stopper 5 is the cuboid, and in other embodiments, stopper 5 can be for removing discoid arbitrary shape, has seted up on blade 2 and has supplied stopper 5 to get into mounting groove 6, is provided with mounting 7 that is used for fixed blade 2 on the tool bit 3.

When the blade 2 is replaced, the worn blade 2 is taken out from the cutter head 3; the blade 2 to be replaced is moved into the mounting opening 4, the mounting groove 6 in the blade 2 is hung on the limiting block 5, and then the blade 2 is fixed on the cutter head 3 through the fixing piece 7, so that the operation is simple and convenient.

Referring to fig. 4 and 5, the fixing member 7 includes a bolt 71 screwed on the blade 2, a length direction of the bolt 71 is perpendicular to a length direction of the hilt 1, the bolt 71 is located on a side of the hilt 1 away from the limiting block 5, and the bolt 71 abuts on the blade 2; when the tool holder 1 is fixed, the bolt 71 is screwed, the bolt 71 slides and abuts against the blade 2, and then the blade 2 is fixed on the tool bit 3, so that the operation is simple and convenient.

Referring to fig. 4 and 5, in order to improve the fixing effect on the blade 2, a bearing is mounted on a bolt 71, one end of the bolt 71 is welded on an inner ring of the bearing, and a rubber pad 72 is fixedly connected to an outer ring of the bearing through glue; after the rubber pad 72 abuts against the blade 2, the bolt 71 is screwed to extrude the rubber pad 72 on the blade 2, so that the fixing effect on the blade 2 is improved; at the same time, the possibility of the bolt 71 damaging the blade 2 is reduced.

Referring to fig. 4 and 5, in order to reduce the possibility of scratching the false teeth by the head of the bolt 71, the tool holder 1 is provided with a countersunk groove 8 into which the end of the bolt 71 enters.

Referring to fig. 2, in order to facilitate replacement of the tool bit 3, the tool bit 3 is detachably connected to the tool shank 1, a threaded section 9 is milled on the tool shank 1, and a threaded groove 10 for threaded connection of the threaded section 9 is formed in the tool bit 3; the tool bit 3 is replaced, the tool bit 3 is screwed, the tool bit 3 is taken down from the tool shank 1, and the operation is simple and convenient.

The implementation principle of the embodiment 1 is as follows:

when the artificial tooth is carved, firstly, the blade 2 is moved into the mounting opening 4, and the mounting groove 6 on the blade 2 is hung on the limiting block 5; then, the bolt 71 is screwed, the bolt 71 slides to drive the rubber pad 72 to slide and abut against the blade 2, and the blade 2 is further installed on the cutter head 3; then the tool bit 3 is arranged on the tool shank 1; and repeating the steps to replace the blade 2 or the cutter head 3.

Example 2

The difference between the embodiment 2 and the embodiment 1 is that, referring to fig. 6 and 7, a slot 11 for inserting the tool shank 1 is formed in the tool bit 3, a fixing block 12 is slidably disposed on the tool shank 1, the sliding direction of the fixing block 12 is perpendicular to the length direction of the tool shank 1, a sliding groove 13 for sliding the fixing block 12 is formed in the tool shank 1, and a clamping groove 14 for clamping the fixing block 12 is formed in the tool bit 3 and on the side wall of the slot 11; after inserting tool bit 3 with handle of a knife 1, rotate handle of a knife 1, make spout 13 align the joint groove 14 on the tool bit 3, slide fixed block 12 again, make the one end of fixed block 12 get into in the joint groove 14, and then fix tool bit 3 on handle of a knife 1.

Referring to fig. 6 and 7, in order to facilitate sliding of the fixing block 12, the knife handle 1 is provided with an elastic member 15 for driving the fixing block 12 to slide into the clamping groove 14, the elastic member 15 includes a first spring 151 disposed in the sliding groove 13, one end of the first spring 151 is embedded in the bottom wall of the sliding groove 13, and the other end of the first spring 151 is embedded in the fixing block 12; handle of a knife 1 is at the in-process that gets into tool bit 3, and fixed block 12 pressurized is accomodate in spout 13, and first spring 151 is in the state of compression, aligns the back when spout 13 and joint groove 14, under the effect of first spring 151 elasticity, makes fixed block 12 slide and get into in the joint groove 14, and easy operation is convenient.

Referring to fig. 6 and 7, in order to facilitate the tool bit 3 to be taken off from the tool holder 1, the clamping groove 14 penetrates through the tool bit 3, and a pressing block 16 for abutting against the fixing block 12 is slidably arranged on the tool bit 3 and in the clamping groove 14; when separating tool bit 3 and handle of a knife 1, press pressing block 16, pressing block 16 slides the butt on fixed block 12 to make fixed block 12 accomodate in spout 13, take off tool bit 3 afterwards, easy operation is convenient.

Referring to fig. 6 and 7, in order to reduce the possibility of the pressing block 16 falling off, a second spring 17 is sleeved on the pressing block 16, one end of the second spring 17 is embedded on the cutter head 3, and the other end is embedded on the fixing block 12; the second spring 17 reduces the possibility of the pressing block 16 falling off.

Referring to fig. 6 and 7, in order to facilitate a user to observe the separation degree between the fixing block 12 and the clamping groove 14, a third spring 18 is embedded in the end portion of the knife handle 1, and the other end of the third spring 18 abuts against the bottom wall of the slot 11; after the fixing block 12 is separated from the clamping groove 14, the tool bit 3 is driven to slide towards the direction departing from the tool holder 1 under the action of the elastic force of the third spring 18, and then the fixing block 12 is separated from the clamping groove 14.

The implementation principle of the embodiment 2 is as follows:

when the cutter head 3 is replaced, the pressing block 16 is pressed, the pressing block 16 is in sliding contact with the fixed block 12, the fixed block 12 is accommodated in the sliding groove 13, and then the cutter head 3 is taken down; inserting a tool bit 3 to be replaced on the tool shank 1, compressing the fixing block 12 to enable the fixing block 12 to be contained in the sliding groove 13, and then inserting the tool shank 1 into the tool bit 3; when the sliding groove 13 and the clamping groove 14 are located on the same axis, the fixing block 12 slides into the clamping groove 14 under the action of the elastic force of the first spring 151, and the installation of the cutter head 3 is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a special carving tool of porcelain in dentistry, includes handle of a knife (1) and blade (2) of setting on handle of a knife (1), its characterized in that: a tool bit (3) for mounting a blade (2) is arranged at one end of the tool holder (1), a mounting opening (4) is formed in the tool bit (3), the blade (2) is located in the mounting opening (4), a limiting block (5) is arranged on the tool bit (3) and on the side wall of the mounting opening (4), and a mounting groove (6) for the limiting block (5) to enter is formed in the blade (2); the cutter head (3) is provided with a fixing piece (7) used for fixing the blade (2).

2. The dental porcelain engraving knife as claimed in claim 1, wherein: the fixing piece (7) comprises a bolt (71) which is in threaded connection with the blade (2), and the bolt (71) abuts against the blade (2).

3. The dental porcelain engraving knife as claimed in claim 2, wherein: the bolt (71) is rotatably provided with a rubber pad (72) for abutting against the blade (2).

4. The dental porcelain engraving knife as claimed in claim 2, wherein: the tool bit (3) is provided with a countersunk groove (8) for the head of the bolt (71) to enter.

5. The dental porcelain engraving knife as claimed in claim 1, wherein: the tool bit (3) is detachably connected to the tool handle (1).

6. The dental porcelain engraving knife as claimed in claim 5, wherein: the tool handle is characterized in that a threaded section (9) is arranged on the tool handle (1), and a threaded groove (10) for the threaded connection of the threaded section (9) is formed in the tool bit (3).

7. The dental porcelain engraving knife as claimed in claim 5, wherein: offer slot (11) that supply handle of a knife (1) to peg graft on tool bit (3), it is provided with fixed block (12) to slide on handle of a knife (1), joint groove (14) of supplying fixed block (12) joint are offered on tool bit (3) and lie in the lateral wall of slot (11), be provided with on handle of a knife (1) and be used for ordering about fixed block (12) and slide elastic component (15) that get into in joint groove (14).

8. The dental porcelain engraving knife as claimed in claim 7, wherein: offer on handle of a knife (1) and supply fixed block (12) sliding chute (13), elastic component (15) are including setting up first spring (151) in spout (13), the one end setting of first spring (151) is on the diapire of spout (13), and the other end setting is on fixed block (12).

9. The dental porcelain engraving knife as claimed in claim 7, wherein: joint groove (14) run through tool bit (3), on tool bit (3) and be located joint groove (14) and slide and be provided with pressing block (16) that are used for butt fixed block (12).