CN218572342U - Wax knife - Google Patents

Abstract

The utility model relates to a wax knife relates to the technical field of medical instrument, wax knife includes handle of a knife, tool bit, connects the subassembly and dismantlement subassembly soon, connect the subassembly soon including buckle structure, be used for with buckle structure complex joint and be used for applying the elasticity application of force piece of joint trend power for buckle structure, handle of a knife one end is equipped with the cavity that supplies buckle structure and elasticity application of force piece installation, the joint sets up on the tool bit, the dismantlement subassembly is including being used for driving buckle structure breaks away from the transfer line of joint, transfer line movable mounting stretches out handle of a knife formation application of force portion in handle of a knife and one end. The utility model discloses a joint spare joint tool bit, change tool bit that can be convenient has solved current wax sword and can not change the tool bit and lead to accomodating the problem of difficulty, can change the tool bit of different grade type by a handle of a knife, has strengthened the practicality of wax sword.

Description

Wax knife

Technical Field

The application relates to the field of medical tools, in particular to a wax knife.

Background

On the tooth model made of embedding material or plaster, if a steel support needs to be arranged, a wax sheet is firstly stuck on the tooth model in order to leave a gap for filling glue between the steel support and the tooth model. This step is typically accomplished by the physician holding the wax knife.

In the prior art, the tool bit of the wax knife is fixed, one wax knife only has one tool bit, the tool bit can be classified according to the action, the tool bit can be divided into types such as cutting, scraping, pressing and the like, and the tool bit of the same type has different sizes. Consequently, the doctor needs to change the multiple wax sword of different tool bit models in the work, and the multiple type of wax sword leads to the wax sword to accomodate the difficulty.

In view of the above-mentioned related art, a wax knife convenient for replacing a knife head needs to be designed, and the wax knife can be used only by replacing the knife head.

Disclosure of Invention

The utility model provides a solve current wax knife because the tool bit type leads to wax knife quantity many more, accomodates the problem of difficulty, provides a wax knife.

In order to solve the problems, the wax knife adopts the following technical scheme:

the utility model provides a wax knife, wax knife includes handle of a knife, tool bit, connects subassembly and dismantlement subassembly soon, connect the subassembly soon including buckle structure, be used for with buckle structure complex joint and be used for applying the elasticity application of force piece of joint trend power for buckle structure, handle of a knife one end is equipped with the cavity that supplies buckle structure and elasticity application of force piece installation, the joint sets up on the tool bit, the dismantlement subassembly is including being used for driving buckle structure breaks away from the transfer line of joint, transfer line movable mounting stretches out the handle of a knife in handle of a knife and one end and forms application of force portion.

Through adopting above-mentioned technical scheme, elasticity application of force spare makes buckle structure be in the chucking state all the time, buckle structure can with connect in the joint of tool bit for the tool bit is installed on the handle of a knife, under the condition that needs changed the tool bit, breaks away from buckle structure and joint head through the dismantlement subassembly, can take off original tool bit, and the tool bit of more renewing, convenient to use has guaranteed that a wax sword can change the tool bit of different grade type in order to adapt to multiple application scene.

Optionally, the buckle structure includes a base arranged in the cavity and a clamping sheet hinged on the base, and the clamping sheet is provided with a clamping part matched with the clamping head and a transmission part for pushing the transmission rod.

Through adopting above-mentioned technical scheme, buckle structure's base sets up in the cavity, avoids buckle structure to remove in the cavity for buckle structure and handle of a knife become a whole, and the joint in the insert handle of a knife that with this assurance tool bit can both be accurate at every turn.

Optionally, the elastic force applying member is a torsion spring, and the torsion spring is installed between the inner wall of the cavity and the clamping piece.

Through adopting above-mentioned technical scheme, the torsional spring both ends butt respectively in joint piece and cavity inner wall for the joint piece keeps the chucking state, can not become flexible, avoids the tool bit to drop in the use.

Optionally, an included angle between the clamping portion and the transmission portion is an obtuse angle.

By adopting the technical scheme, the clamping structure saves more space in the knife handle, and meanwhile, the clamping piece is more convenient to mount on the base.

Optionally, one end of the transmission rod, which is close to the buckle structure, is further provided with a transmission head, the diameter of the transmission head is larger than that of the transmission rod, the transmission head is abutted to one end of the transmission part, a tapered hole is formed in the end, which is abutted to the inner wall of the tapered hole, of the transmission part.

Through adopting above-mentioned technical scheme, the transmission position is located the bell mouth, and bell mouth and transmission looks adaptation, when the user exerted the power for the transfer line, transmission portion butt slides along the bell mouth inner wall in the one end of bell mouth, can make the clamping part open for buckle structure and dismantlement subassembly are spacing mutually, have improved the sensitivity of dismantling the subassembly.

Optionally, a clamping portion is installed on the cavity, and a mounting hole for fixing the cutter head is formed in the clamping portion.

Through adopting above-mentioned technical scheme, cooperate when joint and buckle structure and install the tool bit in the handle of a knife, joint portion has further fixed the tool bit for the tool bit installation is more firm.

Optionally, the tool bit includes a tool body and an insert rod, the insert rod is installed in the tool handle, the end portion of the insert rod is provided with the clamping connector, the insert rod is a square rod, and the mounting hole is a square hole.

Through adopting above-mentioned technical scheme, when the tool bit was installed in the handle of a knife, the inserted bar was installed in the mounting hole, and square inserted bar and square mounting hole looks adaptation have avoided the tool bit to rotate in the handle of a knife.

Optionally, the force application part is connected with a pressing head, the force application part is sleeved with a spring, and two ends of the spring are respectively abutted to the pressing head and the tool handle.

Through adopting above-mentioned technical scheme, the user presses the press head and can make the transfer line remove and promote user operation and feel, and the spring makes the dismantlement structure under the user does not apply force the condition, and buckle structure is kept away from as far as to the transfer head, avoids the gravity action of dismantling the structure at buckle structure for buckle structure damages.

Optionally, one end of the knife handle, which is far away from the quick connection assembly, is provided with a storage cap, a sliding groove is formed in the side wall of the storage cap, and a sliding block extending out of the sliding groove is arranged on the pressing head.

Through adopting above-mentioned technical scheme, the user can make the transfer line remove through stirring the slider, avoids the wax sword when dropping carelessly the problem that the press head caused the tool bit to drop down, has improved the security of wax sword.

Optionally, the two ends of the storage cap are both provided with structures used for being connected with the knife handle.

Through adopting above-mentioned technical scheme, accomodate the cap both ends and all be connected with the handle of a knife, different tool bits can be connected respectively to two handles of a knife, and the user can select according to the use scene, has further improved the practicality of wax sword.

In summary, the present application includes at least one of the following beneficial technical effects: the tool bit can be conveniently replaced by clamping the tool bit through the clamping piece, namely the tool bit of different types is installed on one tool handle, so that the practicability of the wax knife is improved, and the wax knife is convenient for a user to store; each part modular design of wax sword, when certain part damages, only need to change corresponding part can, need not to change whole wax sword, save the cost more, environmental protection more.

Drawings

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

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged partial view of portion B of FIG. 1;

FIG. 4 is a schematic overall structure diagram of a second embodiment of the present application;

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

FIG. 6 is a schematic overall structure diagram of a third embodiment of the present application;

FIG. 7 is an enlarged partial schematic view of portion D of FIG. 6;

in the figure, 1, a knife handle; 11. a cavity; 12. a second groove; 13. a through hole; 14. a third groove; 2. a cutter head; 21. a blade body; 22. a rod is inserted; 3. a quick connect assembly; 31. a buckle structure; 311. a base; 312. a clip sheet; 3121. a clamping part; 3122. a transmission section; 313. a rotating shaft; 32. a clamping head; 33. an elastic force application member; 4. disassembling the assembly; 41. a transmission rod; 411. a force application part; 42. a drive head; 421. a tapered hole; 43. a spring; 44. a pressing head; 441. a slider; 5. a clamping part; 51. mounting holes; 52. a first groove; 53. accommodating grooves; 6. a storage cap; 61. a chute.

Detailed Description

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

The first embodiment is as follows: a wax knife, referring to fig. 1, comprises a knife handle 1, a knife head 2, a quick-connection assembly 3 and a disassembly assembly 4. Referring to fig. 2, fig. 2 is a partially enlarged schematic view of a portion a in fig. 1, a cavity 11 is arranged at one end of a tool holder 1, a clamping portion 5 is installed in the cavity 11, an inner thread is arranged on an inner wall of the cavity 11, an outer thread is arranged on an outer wall of the clamping portion 5, and the clamping portion 5 is connected to the cavity 11 through a thread. The cutter head 2 comprises a cutter body 21 and an insert rod 22, and a clamping head 32 is formed at the end of the insert rod 22.

Connect subassembly 3 soon including buckle structure 31, joint 32 and elasticity application of force piece 33, buckle structure 31 includes base 311 and articulates joint piece 312 on base 311, and joint piece 312 is a slice at least, and is preferred in this embodiment, and the quad slit has been seted up at base 311 center, and each side of quad slit is provided with axis of rotation 313, and joint piece 312 articulates on base 311 through axis of rotation 313, and joint piece 312 has four, can cooperate each other and press from both sides joint 32 tightly.

The latch piece 312 is divided into a clamping portion 3121 and a transmission portion 3122 from both sides of the rotation shaft 313, the clamping portion 3121 is used for cooperating with the latch head 32, the transmission portion 3122 is used for pushing the transmission rod 41, and in this embodiment, the included angle between the clamping portion 3121 and the transmission portion 3122 is preferably an obtuse angle.

The first groove 52 used for limiting the base 311 is opened at one end of the clamping portion 5 abutted to the bottom of the cavity 11, the accommodating groove 53 used for movement of the clamping portion 3121 is opened in the clamping portion 5, and the mounting hole 51 used for mounting the insert rod 22 is opened at the bottom of the accommodating groove 53. In this embodiment, preferably, the mounting hole 51 and the insert rod 22 are both square, and when the insert rod 22 is inserted into the mounting hole 51, the insert rod 22 cannot rotate in the mounting hole 51, that is, when the tool bit 2 is mounted on the tool holder 1, the tool bit 2 cannot rotate in the tool holder 1, and the blade cannot rotate in the use process of a user, so that the accuracy of the user in using the wax knife can be improved.

When the snap structure 31 is installed in the cavity 11, the holding portion 3121 can move in the accommodating groove 53 under the action of the transmission rod 41, the end portion of the holding portion 3121 is provided with a holding head, and a groove matched with the holding head is formed at the connection portion of the insertion rod 22 and the bayonet joint 32.

The in-process that bayonet joint 32 inserted in buckle structure 31, the one side of the first butt joint of clamping head 32 of clamping head is the inclined plane, the one side of the first butt clamping head of clamping head 32 is the inclined plane, in-process at the installation of tool bit 2, insert tool bit 2 hard, the user is greater than when elasticity application of force piece 33 acts on the power of clamping part 3121 for the power that clamping part 3121 was given through tool bit 2 transmission, the blade can the disect insertion, it makes clamping part 3121 open to need not to use removal assembly 4, the installation of tool bit 2 has further been made things convenient for.

Be provided with elasticity application of force piece 33 between accommodation groove 53 inside wall and the clamping part 3121, it is preferred in this embodiment, elasticity application of force piece 33 is the torsional spring, and torsional spring one end butt is in accommodation groove 53 inside wall, and the other end butt of torsional spring is in clamping part 3121, and the torsional spring makes the joint piece 312 keep the chucking state, can not become flexible, avoids the tool bit 2 to drop in the use.

Referring to fig. 2 and 3, the detaching assembly 4 includes a transmission rod 41, a transmission head 42, a spring 43 and a pressing head 44, the transmission rod 41 is fixedly connected to the transmission head 42, referring to fig. 2, a second groove 12 is formed at the bottom of the cavity 11, a through hole 13 is formed in the handle 1, the transmission head 42 is slidably disposed in the second groove 12, a tapered hole 421 is formed at one end of the transmission head 42, which is used for abutting against the transmission portion 3122, the transmission portion 3122 abuts against an inner wall of the tapered hole 421, when a user applies a force to the transmission rod 41, the transmission portion 3122 abuts against one end of the tapered hole 421 and slides along the inner wall of the tapered hole 421, and the holding portion 3121 can be opened.

Referring to fig. 3, the transmission rod 41 is slidably disposed in the through hole 13, one end of the transmission rod 41 extends out of the handle 1 to form a force application portion 411, a third groove 14 is formed in one end of the handle 1 away from the cavity 11, the spring 43 is mounted in the third groove 14 and sleeved on the transmission rod 41, the force application portion 411 is connected with the pressing head 44, and when the wax knife is placed non-horizontally, the spring 43 can offset the gravity of the detaching assembly 4 to prevent the wax knife from acting on the fastening structure 31. In this embodiment, the pressing head 44 is preferably screwed to the force application portion 411, so that the user can assemble the pressing head by himself/herself.

The handle 1 can be made of wood, so that the wax knife has good hand feeling, or made of plastic and other materials, so that the wax knife is more convenient to produce and lower in cost.

The implementation principle of the first embodiment of the application is as follows: when a user needs to use the wax knife, the pressing head 44 is manually pressed, the transmission head 42 slides in the second groove 12 and moves towards the buckling structure 31, so that the transmission portion 3122 of the clamping sheet 312 is tightened in the tapered hole 421 of the transmission head 42, at this time, the clamping portion 3121 of the clamping sheet 312 is opened in the cavity 11, the plug and the insertion rod 22 of the knife head 2 are inserted into the installation hole 51 of the clamping portion 5, the pressing head 44 is loosened, the knife head 2 can be installed on the knife handle 1, when the knife head 2 needs to be replaced, the pressing head 44 is firstly pressed to open the clamping portion 3121, the original knife head 2 is taken down, a new knife head 2 can be installed, in addition, the installation knife head 2 can also be directly inserted into the installation hole 51 of the clamping portion 5 without pressing the pressing head 44, the clamping head 32 and the insertion rod 22 of the knife head 2 abut against the inclined surface under the clamping head, the clamping head 32 continues to exert force, the clamping portion 3121 is opened under the action of the plug, and the torsion spring head 32 completely enters the clamping portion 3121, and then the clamping portion 3121 clamps the torsion spring head under the action.

The wax knife in this embodiment can be assembled by a user, first, the fastening structure 31 is placed in the fastening portion 5, specifically, the base 311 of the fastening structure 31 is installed in the first groove 52 of the fastening portion 5, then the detaching assembly 4 is installed in the knife handle 1, specifically, the transmission rod 41 is inserted into the through hole 13 from the second groove 12, so that the transmission head 42 is located in the second groove 12, then, the fastening structure 31 is connected in the cavity 11 in a threaded manner, the base 311 is pressed in the first groove 52 by the bottom of the cavity 11, finally, the spring 43 is installed in the third groove 14, the pressing head 44 is installed on the force application portion 411 of the transmission rod 41, the wax knife handle 1 is installed, and a proper type of knife head 2 can be selected according to actual needs to install according to the above steps, so that a complete wax knife can be obtained.

Example two: a wax knife, referring to fig. 4 and 5, fig. 4 is an overall structure schematic diagram of a second embodiment of the present application, and fig. 5 is a partially enlarged schematic diagram of a portion C in fig. 4. In this embodiment, the tool bit 2, the tool shank 1, the quick-connect assembly 3, the detaching assembly 4, and the engaging portion 5 are the same as those in the first embodiment, in this embodiment, a storage cap 6 is disposed at one end of the tool shank 1 of the wax knife, which is away from the quick-connect assembly 3, a sliding groove 61 is disposed on a side wall of the storage cap 6, the pressing head 44 is engaged with the force applying portion 411 of the transmission rod 41, and a slider 441 extending out of the sliding groove 61 is disposed on the pressing head 44.

The switch that the user changed tool bit 2 is located handle of a knife 1 lateral wall, has avoided drive rod 41 striking ground when handle of a knife 1 falls to ground to lead to tool bit 2 to drop.

The implementation principle of the second embodiment of the present application is as follows: when the wax knife is assembled in the embodiment, the previous steps are the same as those in the first embodiment, after the spring 43 is installed, the knife handle 1 and the accommodating cap 6 are connected through the threads, the pressing head 44 is inserted into the force application part 411 on the transmission rod 41, the sliding block 441 extending out of the sliding groove 61 is fixedly connected to the pressing head 44, the knife handle 1 is installed, a user can install different knife heads 2, and the complete wax knife can be obtained after the knife head 2 is installed.

Example three: referring to fig. 6 and 7, fig. 6 is a schematic overall structure diagram of a third embodiment of the present application, and fig. 7 is a partially enlarged schematic view of a portion D in fig. 6. In this embodiment, tool bit 2, handle of a knife 1, connect subassembly 3, dismantlement subassembly 4, joint portion 5 soon all with embodiment two the same, accomodate 6 both ends of cap in this embodiment and all be equipped with the structure that is used for being connected with handle of a knife 1, accomodate both ends of cap 6 and all can connect handle of a knife 1, tool bit 2 of two kinds can be installed to both sides handle of a knife 1, the user can install according to actual need by oneself.

The third embodiment of the present application has the following implementation principle: when the wax knife is assembled in the embodiment, the previous steps are the same as those in the embodiment, and the two ends of the storage cap 6 in the embodiment are both connected with the knife handles 1. Different tool bits 2 can be installed to both sides handle of a knife 1, and the user can select tool bit 2 installation of different categories by oneself according to the use scene, has further improved the practicality of wax sword.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: 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 (10)

1. A wax knife, characterized in that: wax sword includes handle of a knife (1), tool bit (2), connects subassembly (3) and dismantlement subassembly (4) soon, connect subassembly (3) soon including buckle structure (31), be used for with buckle structure (31) complex joint (32) and be used for applying elasticity application of force piece (33) of joint trend power for buckle structure (31), handle of a knife (1) one end is equipped with cavity (11) that supply buckle structure (31) and elasticity application of force piece (33) installation, joint (32) set up on tool bit (2), dismantle subassembly (4) including being used for driving buckle structure (31) break away from the transfer line (41) of joint (32), handle of a knife (41) movable mounting in handle of a knife (1), and one end stretch out and form application of force portion (411).

2. A wax knife according to claim 1, wherein the snap structure (31) comprises a base (311) arranged in the cavity (11) and a snap tab (312) hinged on the base (311), the snap tab (312) is provided with a clamping portion (3121) for cooperating with the snap head (32) and a transmission portion (3122) for pushing the transmission rod (41).

3. A wax spatula as claimed in claim 2, wherein the resilient urging member (33) is a torsion spring mounted between an inner wall of the cavity (11) and the catch (312).

4. A wax knife according to claim 2, characterized in that the included angle between the holding portion (3121) and the transmission portion (3122) is an obtuse angle.

5. A wax spatula as claimed in claim 2, wherein a transmission head (42) is further arranged at one end of the transmission rod (41) close to the buckle structure (31), the diameter of the transmission head (42) is larger than that of the transmission rod (41), a tapered hole (421) is opened at one end of the transmission head (42) abutting against the transmission portion (3122), and the transmission portion (3122) abuts against the inner wall of the tapered hole (421).

6. The wax spatula according to claim 1, wherein the cavity (11) is provided with a clamping portion (5), and the clamping portion (5) is provided with a mounting hole (51) for fixing the spatula head (2).

7. A wax knife according to claim 6, wherein the knife head (2) comprises a knife body (21) and an insert rod (22), the insert rod (22) is installed in the knife handle (1), the clamping head (32) is formed at the end of the insert rod (22), the insert rod (22) is a square rod, and the installation hole (51) is a square hole.

8. A wax spatula as claimed in claim 1, wherein the force applying portion (411) is connected with a pressing head (44), the force applying portion (411) is sleeved with a spring (43), and two ends of the spring (43) are respectively abutted against the pressing head (44) and the handle (1).

9. A wax spatula as claimed in claim 8, wherein a storage cap (6) is arranged at one end of the spatula handle (1) far away from the quick-connection assembly (3), a sliding groove (61) is arranged on the side wall of the storage cap (6), and a sliding block (441) extending out of the sliding groove (61) is arranged on the pressing head (44).

10. A wax spatula as claimed in claim 9, wherein both ends of the receiving cap (6) are provided with a structure for connection with the handle (1).

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