CN219680729U - Coronary handle - Google Patents
Coronary handle Download PDFInfo
- Publication number
- CN219680729U CN219680729U CN202320594497.9U CN202320594497U CN219680729U CN 219680729 U CN219680729 U CN 219680729U CN 202320594497 U CN202320594497 U CN 202320594497U CN 219680729 U CN219680729 U CN 219680729U
- Authority
- CN
- China
- Prior art keywords
- chuck
- sleeve
- coronary
- connecting hole
- knife
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model discloses a coronary knife handle, which relates to the technical field of medical appliances and comprises a knife handle and a chuck, wherein a connecting hole is formed in the top end of the knife handle, threads are arranged in the connecting hole, the chuck sequentially comprises a connecting part, an extrusion part and a screw rod from top to bottom, and the coronary knife handle further comprises a sleeve matched with the extrusion part, and the sleeve is sleeved outside the extrusion part. In the process of assembling the coronary knife, the holding part of the rotary chuck is the sleeve all the time, the contact area can be kept unchanged, the chuck is convenient to screw, and as the outer surface and the inner surface of the sleeve are provided with the anti-skidding lines, the sleeve has enough acting force to drive the chuck to rotate, and the external anti-skidding lines can increase the friction force between the hand of a user and the sleeve, so that the convenience in assembling the chuck is further improved, and the coronary knife can be more conveniently assembled and disassembled.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a coronary handle.
Background
As shown in fig. 1, the conventional coronary shank is generally composed of two parts, namely a chuck and a shank from top to bottom, wherein a connecting hole is formed in the top end of the shank, threads are arranged in the hole, and a screw is arranged at the bottom end of the chuck.
However, due to the small size of the chuck, when the chuck is screwed into the connecting hole, the contact area between the hand and the chuck gradually decreases along with the continuous entering of the chuck into the connecting hole, so that the chuck is difficult to pinch and rotate, and is inconvenient to connect with the tool handle.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a coronary knife handle.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a coronary shank, includes handle of a knife and chuck, the connecting hole has been seted up on the top of shown handle of a knife, the inside of connecting hole is provided with the screw thread, the chuck from top to bottom comprises connecting portion, extrusion portion and screw rod in proper order, still include with the sleeve of extrusion portion looks adaptation, the sleeve cover is established the outside of extrusion portion.
Further, the length of the sleeve is slightly shorter than that of the extrusion part, and the outer surface and the inner surface are both provided with anti-skid patterns.
Further, the length of the screw rod is slightly smaller than the depth of the connecting hole, and the screw rod and the connecting hole can be connected through the threads.
Compared with the prior art, the utility model has the beneficial effects that:
when the coronary knife is assembled, the blade is inserted into the chuck at first, the chuck is inserted into the sleeve, the screw is inserted into the connecting hole, the sleeve is rotated to drive the chuck to rotate together, so that the screw can be screwed into the connecting hole, the sleeve can extrude the extruding part of the chuck, and the connecting part clamps the blade, so that the assembly of the coronary knife can be completed.
In the process, the holding part of the rotary chuck is the sleeve all the time, so that the contact area is kept unchanged, the chuck is convenient to screw, and as the outer surface and the inner surface of the sleeve are provided with the anti-slip patterns, the sleeve has enough acting force to drive the chuck to rotate, and the external anti-slip patterns can increase the friction force between the hand of a user and the sleeve, so that the convenience in assembling the chuck is further improved, and the coronary knife can be more conveniently assembled and disassembled.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
FIG. 1 is a schematic view of a prior art coronary knife;
FIG. 2 is a schematic view of a crown shank according to the present utility model;
fig. 3 is an exploded view of a coronary handle according to the present utility model.
In the figure: 1. a knife handle; 2. a sleeve; 3. a chuck; 4. a screw; 5. a connection hole; 6. an extrusion part; 7. and a connecting part.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model;
referring to fig. 2-3, a coronary shank comprises a shank 1 and a chuck 3, wherein a connecting hole 5 is formed in the top end of the shank 1, threads are arranged in the connecting hole 5, the chuck 3 is composed of a connecting part 7, an extruding part 6 and a screw 4 from top to bottom in sequence, the coronary shank further comprises a sleeve 2 matched with the extruding part 6, the sleeve 2 is sleeved outside the extruding part 6, the length of the sleeve 2 is slightly shorter than the extruding part 6, the length of the screw 4 is slightly smaller than the depth of the connecting hole 5, and the screw 4 can be connected with the connecting hole 5 through the threads.
When the coronary knife is assembled, firstly, the blade is inserted into the chuck 3, the chuck 3 is inserted into the sleeve 2, then the screw 4 is inserted into the connecting hole 5, and then the sleeve 2 is rotated to drive the chuck 3 to rotate together, so that the screw 4 can be screwed into the connecting hole 5, and the sleeve 2 can extrude the extruding part 6 of the chuck 3, so that the connecting part 7 clamps the blade, and the assembly of the coronary knife can be completed.
In the above process, the holding part of the rotating chuck 3 is always the sleeve 2, and since the outer surface and the inner surface of the sleeve 2 are provided with the anti-slip patterns, the sleeve 2 has enough acting force to drive the chuck 3 to rotate, and the external anti-slip patterns can increase the friction force between the hand of the user and the sleeve 2, so that the convenience in assembling the chuck 3 is further improved, and the coronary knife can be more conveniently assembled and disassembled.
Claims (3)
1. The utility model provides a coronary shank, includes handle of a knife (1) and chuck (3), connecting hole (5) have been seted up on the top of shown handle of a knife (1), the inside of connecting hole (5) is provided with the screw thread, chuck (3) are from last to down constitute by connecting portion (7), extrusion portion (6) and screw rod (4) in proper order, its characterized in that still include with sleeve (2) of extrusion portion (6) looks adaptation, sleeve (2) cover is established the outside of extrusion portion (6).
2. A coronary handle according to claim 1, characterized in that the sleeve (2) has a length slightly shorter than the pressing portion (6), and that both the outer surface and the inner surface are provided with anti-slip patterns.
3. A coronary shank according to claim 1, characterized in that the length of the screw (4) is slightly smaller than the depth of the connecting hole (5), the screw (4) and the connecting hole (5) being connectable by means of the screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320594497.9U CN219680729U (en) | 2023-03-23 | 2023-03-23 | Coronary handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320594497.9U CN219680729U (en) | 2023-03-23 | 2023-03-23 | Coronary handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219680729U true CN219680729U (en) | 2023-09-15 |
Family
ID=87943715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320594497.9U Active CN219680729U (en) | 2023-03-23 | 2023-03-23 | Coronary handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219680729U (en) |
-
2023
- 2023-03-23 CN CN202320594497.9U patent/CN219680729U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |