CN220158351U - Elastic locking structure of tool bit - Google Patents
Elastic locking structure of tool bit Download PDFInfo
- Publication number
- CN220158351U CN220158351U CN202222461291.7U CN202222461291U CN220158351U CN 220158351 U CN220158351 U CN 220158351U CN 202222461291 U CN202222461291 U CN 202222461291U CN 220158351 U CN220158351 U CN 220158351U
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- Prior art keywords
- locking
- elastic
- groove
- cutter head
- handle
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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model provides an elastic locking structure of a cutter head, and belongs to the field of medical cutters. The tool bit handle is provided with a plurality of clamping grooves, the clamping blocks can extend into the corresponding clamping grooves, the plurality of clamping blocks are further connected with elastic locking mechanisms, and the elastic locking mechanisms can drive the plurality of clamping blocks to extend into the corresponding clamping grooves.
Description
Technical Field
The utility model belongs to the field of medical surgical cutters, and particularly relates to an elastic locking structure of a cutter head.
Background
Most of the practical medical cutters for operation have the same cutter handle, and the common cutters are integrally arranged, so that the cutter head part cannot be replaced. The surgical knife has the advantages that a plurality of needed cutters are needed to be prepared and sterilized before surgery, the number of the cutters is large, if the cutter heads and the knife handle are arranged to be detachable parts, the surgical knife can meet the surgical requirements only by matching a small number of cutter heads with the cutter heads, and the number of the knife handles can be reduced. In addition, if the cutter head is damaged, the whole cutter needs to be replaced, and if the cutter head is detachably connected, only the cutter head part needs to be replaced.
For example, chinese patent application discloses an ophthalmic ceramic scalpel [ application number CN202020770256.1], including tool holder and tool bit, tool bit and tool holder are detachable connection, the head end of tool holder is cross four-lobe structure, is formed with cross slot, the tail of tool bit inserts in the slot. The tool bit is detachable and replaceable, can be in various shapes, and can be used repeatedly after being disinfected, so that the cost is reduced, the medical burden of a patient is lightened, and medical waste is reduced.
Disclosure of Invention
The present utility model aims to solve the above problems and provide a tool bit elastic locking structure.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a tool bit elasticity locking structure, includes handheld handle, is equipped with the locking chamber in, locking chamber sliding connection have the tool bit handle, the locking post sliding connection have a plurality of latch segment, the tool bit handle be equipped with a plurality of draw-in groove, the latch segment can extend into corresponding draw-in groove, a plurality of latch segment still is connected with elasticity locking mechanism, elasticity locking mechanism can order about a plurality of latch segment to extend into corresponding draw-in groove.
In the elastic locking structure of the cutter head, the elastic locking mechanism comprises a sliding cylinder sliding on the outer surface of the handheld handle, the locking column and the plurality of locking blocks are all located on the inner side of the sliding cylinder, the locking column is connected with the elastic piece, and the sliding of the sliding cylinder can push the locking blocks to slide into the locking cavity.
In the elastic locking structure of the cutter head, a circle of deducing inclined plane circle is arranged on the inner wall of the sliding cylinder.
In the elastic locking structure of the cutter head, the locking block slides in the through groove, a boss is arranged on one side of the through groove, when the locking block extends into the corresponding through groove, one end of the locking block, which is far away from the locking cavity, is positioned between the boss and the through groove, one end of the deduction bevel ring is flush with one end of the boss, which is far away from the locking cavity, and the other end of the deduction bevel ring is flush with one end of the through groove, which is far away from the locking cavity.
In the elastic locking structure of the cutter head, an elastic space is further arranged between the sliding cylinder and the locking column, a spiral spring ring is arranged in the elastic space, and two ends of the spiral spring ring are respectively in propping connection with the sliding cylinder and the handheld handle.
In the elastic locking structure of the cutter head, the locking block is spherical, the notch of the clamping groove close to the locking cavity is in a necking shape, and the width of the notch is smaller than the diameter of the locking block.
In the elastic locking structure of the cutter head, the cutter head handle is provided with the stop disc, and the stop disc is propped against the end part of the locking column.
In the elastic locking structure of the cutter head, the diameter of the stop disc is larger than that of the locking column.
In the elastic locking structure of the cutter head, the inner wall of the handheld handle is provided with a thread, and the locking column is screwed into the handheld handle.
In the elastic locking structure of the cutter head, one end of a thread line on the outer surface of the locking column is provided with the step surface.
Compared with the prior art, the utility model has the advantages that:
1. the elastic locking mechanism is utilized to push the locking block to clamp and lock the cutter bar, so that the cutter bar is convenient to assemble and disassemble, and the cutter head is convenient and unobstructed to assemble and disassemble and has no clamping stagnation in the process.
2. The height difference between the boss and the through groove is used for providing a moving space between locking and unlocking of the locking block. In addition, the boss also has the function of a baffle column sliding cylinder, and the sliding cylinder is propped against the boss under the pushing action of the elastic piece.
3. In the disassembly process, two hands of a doctor are respectively held on the stop disc and the slide cylinder, so that the disassembly is convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a cross-sectional view at a in fig. 1.
In the figure: the hand-held handle 10, the locking column 11, the locking cavity 12, the locking block 13, the cutter head handle 14, the clamping groove 15, the elastic locking mechanism 16, the sliding cylinder 17, the deriving bevel ring 18, the boss 19, the elastic space 20, the spiral spring ring 21, the stop disc 22, the step surface 23 and the through groove 24.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
As shown in fig. 1-2, the tool comprises a hand-held handle 10, a locking column 11 is arranged at the end part of the hand-held handle 10, a locking cavity 12 is arranged in the locking column 11, a tool bit handle 14 is slidably connected in the locking cavity 12, a plurality of locking blocks 13 are slidably connected in the locking column 11, the tool bit handle 14 is provided with a plurality of clamping grooves 15, the locking blocks 13 can extend into the corresponding clamping grooves 15, the plurality of locking blocks 13 are also connected with elastic locking mechanisms 16, and the elastic locking mechanisms 16 can drive the plurality of locking blocks 13 to extend into the corresponding clamping grooves 15.
In the embodiment, the elastic locking mechanism 16 is utilized to push the locking block 13 to clamp and lock the cutter bar, so that the cutter bar is convenient to assemble and disassemble, and the cutter head is convenient to assemble and disassemble without barriers and has no clamping stagnation in the process.
During the assembly process, the cutter head handle 14 is directly plugged into the locking cavity 12, the cutter head handle 14 can push the locking blocks 13 to move outwards in the plugging process, so that the cutter head handle 14 smoothly enters the locking cavity 12, and the elastic locking mechanism 16 is pushed, when the cutter head handle 14 moves to a position corresponding to the locking blocks 13, the elastic locking mechanism 16 can reset and push the locking blocks 13 to extend into the corresponding clamping grooves 15, and therefore the clamping and locking of the handheld handle 10 and the cutter head handle 14 are realized.
When the cutter is pulled out, the doctor forces the elastic locking mechanism 16 to lose stress on the locking block 13, so that the cutter head handle 14 can be pulled out easily.
In addition, when the cutter is inserted, the locking block 13 can be inserted by forcibly pressing the elastic locking mechanism 16 to lose stress, and then the cutter head handle 14 is rotated to align the locking block 13 with the clamping groove 15.
The elastic locking mechanism 16 comprises a sliding cylinder 17 sliding on the outer surface of the hand-held handle 10, the locking column 11 and the locking blocks 13 are located on the inner side of the sliding cylinder 17, the locking column 11 is connected with an elastic piece, and the sliding of the sliding cylinder 17 can push the locking blocks 13 to slide into the locking cavity 12.
In this embodiment, the elastic member is pressed by sliding the slide 17, and the slide 17 is located at the outermost side, so that the slide 17 can be conveniently and directly operated. In addition, the elastic piece, the locking column 11 and the locking blocks 13 are all positioned on the inner side of the sliding cylinder 17, and a certain protection effect is also achieved.
The inner wall of the sliding cylinder 17 is provided with a circle of deducing inclined plane ring 18.
In this embodiment, when the slide 17 moves and pushes the locking block 13, the locking block 13 is extended into the corresponding slot 15 by pushing the push of the push bevel ring 18, and the locking block 13 is locked in the slot 15 by the elastic force of the push bevel ring 18 and the elastic member.
In addition, when the bit shank 14 is inserted, the bit shank 14 pushes the lock block 13, and the elastic member is pressed by pushing the deriving bevel ring 18 by the lock block 13.
The locking block 13 slides in the through groove 24, one side of the through groove 24 is provided with a boss 19, when the locking block 13 extends into the corresponding through groove 24, one end of the locking block 13 away from the locking cavity 12 is positioned between the boss 19 and the through groove 24, one end of the deduction bevel ring 18 is flush with one end of the boss 19 away from the locking cavity 12, and the other end of the deduction bevel ring 18 is flush with one end of the through groove 24 away from the locking cavity 12.
In this embodiment, the difference in height between the boss 19 and the through groove 24 is used to provide a moving space for the lock block 13 between locked and unlocked. In addition, the boss 19 also has the function of blocking the column sliding barrel 17, and the sliding barrel 17 is propped against the boss 19 under the pushing action of the elastic piece.
An elastic space 20 is further arranged between the sliding cylinder 17 and the locking column 11, a spiral spring ring 21 is arranged in the elastic space 20, and two ends of the spiral spring ring 21 are respectively propped against the sliding cylinder 17 and the handheld handle 10.
In the present embodiment, the thickness of the elastic space 20 is adapted to the thickness of the coil spring 21, and the coil spring 21 is deformed along the elastic space 20 without twisting when the coil spring 21 is deformed by compression.
The locking block 13 is spherical, the notch of the clamping groove 15 close to the locking cavity 12 is in a necking shape, and the groove width of the notch is smaller than the diameter of the locking block 13.
In the present embodiment, neither the cutter head handle 14 pushes the lock block 13 nor the derivative bevel ring 18 pushes the lock block 13, nor the lock block 13 is caught, and no scratch is generated.
The cutter head handle 14 is provided with a stop plate 22, and the stop plate 22 is propped against the end part of the locking column 11.
In this embodiment, the stopper 22 plays a role in positioning, and when the stopper 22 abuts against the end of the locking post 11, the position of the catch groove 15 corresponds to the position of the locking block 13.
The diameter of the stop disc 22 is larger than the diameter of the locking post 11.
In this embodiment, both hands of the doctor are held on the stopper 22 and the slide 17, respectively, during the disassembly process.
The inner wall of the hand-held handle 10 is provided with a thread, and the locking column 11 is screwed into the hand-held handle 10.
In this embodiment, further detachability facilitates subsequent sterilization.
One end of the thread line on the outer surface of the locking column 11 is provided with a step surface 23.
In this embodiment, the step surface 23 has a blocking effect, preventing the thread from being worn.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although the terms of the hand grip 10, the locking post 11, the locking cavity 12, the locking block 13, the bit shank 14, the clamping groove 15, the elastic locking mechanism 16, the slide 17, the deriving bevel ring 18, the boss 19, the elastic space 20, the helical spring ring 21, the stop plate 22, the step surface 23, the through groove 24 are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (10)
1. The utility model provides a tool bit elasticity locking structure, includes handheld handle (10), its characterized in that, the tip of handheld handle (10) be equipped with locking post (11), locking post (11) in be equipped with locking chamber (12), locking chamber (12) sliding connection have tool bit handle (14), locking post (11) sliding connection have a plurality of latch segment (13), tool bit handle (14) be equipped with a plurality of draw-in groove (15), latch segment (13) can extend into in corresponding draw-in groove (15), a plurality of latch segment (13) still are connected with elasticity locking mechanism (16), elasticity locking mechanism (16) can order about a plurality of latch segment (13) to extend into in corresponding draw-in groove (15).
2. The elastic locking structure of the cutter head according to claim 1, wherein the elastic locking mechanism (16) comprises a sliding cylinder (17) sliding on the outer surface of the hand-held handle (10), the locking column (11) and the plurality of locking blocks (13) are both positioned on the inner side of the sliding cylinder (17), the locking column (11) is connected with an elastic piece, and the sliding of the sliding cylinder (17) can push the locking blocks (13) to slide into the locking cavity (12).
3. The elastic locking structure of the cutter head according to claim 2, wherein a circle of deducing bevel ring (18) is arranged on the inner wall of the sliding cylinder (17).
4. A tool bit elastic locking structure according to claim 3, characterized in that the locking block (13) slides in the through groove (24), one side of the through groove (24) is provided with a boss (19), when the locking block (13) extends into the corresponding through groove (24), one end of the locking block (13) away from the locking cavity (12) is located between the boss (19) and the through groove (24), one end of the deducing bevel ring (18) is flush with one end of the boss (19) away from the locking cavity (12), and the other end of the deducing bevel ring (18) is flush with one end of the through groove (24) away from the locking cavity (12).
5. The elastic locking structure of the cutter head according to claim 2, characterized in that an elastic space (20) is further arranged between the sliding cylinder (17) and the locking column (11), a spiral spring ring (21) is arranged in the elastic space (20), and two ends of the spiral spring ring (21) are respectively propped against the sliding cylinder (17) and the handheld handle (10).
6. The elastic locking structure of the cutter head according to any one of claims 1 to 5, wherein the locking block (13) is spherical, the notch of the clamping groove (15) close to the locking cavity (12) is in a necking shape, and the width of the notch is smaller than the diameter of the locking block (13).
7. The elastic locking structure of a cutter head according to any one of claims 1-5, characterized in that the cutter head handle (14) is provided with a stop disc (22), the stop disc (22) being abutted against the end of the locking post (11).
8. The tool bit resilient locking structure of claim 7, wherein the diameter of the stopper disc (22) is larger than the diameter of the locking post (11).
9. The elastic locking structure of the cutter head according to any one of claims 1 to 5, wherein the inner wall of the hand-held handle (10) is provided with a thread, and the locking column (11) is screwed into the hand-held handle (10).
10. The elastic locking structure of the tool bit according to claim 9, wherein one end of the thread line on the outer surface of the locking post (11) is provided with a step surface (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222461291.7U CN220158351U (en) | 2022-09-16 | 2022-09-16 | Elastic locking structure of tool bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222461291.7U CN220158351U (en) | 2022-09-16 | 2022-09-16 | Elastic locking structure of tool bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220158351U true CN220158351U (en) | 2023-12-12 |
Family
ID=89058854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222461291.7U Active CN220158351U (en) | 2022-09-16 | 2022-09-16 | Elastic locking structure of tool bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220158351U (en) |
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2022
- 2022-09-16 CN CN202222461291.7U patent/CN220158351U/en active Active
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