CN210056145U - Novel bone drill quick mounting structure - Google Patents
Novel bone drill quick mounting structure Download PDFInfo
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- CN210056145U CN210056145U CN201920642625.6U CN201920642625U CN210056145U CN 210056145 U CN210056145 U CN 210056145U CN 201920642625 U CN201920642625 U CN 201920642625U CN 210056145 U CN210056145 U CN 210056145U
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Abstract
The utility model discloses a novel rapid clamping structure of a bone drill, which comprises a bone drill body and a drill bit, and also comprises a limiting unit and a clamping unit; the clamping unit comprises a cylindrical clamping sleeve and a clamping head matched with the clamping sleeve, an inner shaft connected with the clamping head is connected with the clamping sleeve through a bearing, and the end part of the inner shaft is matched with an output shaft of the gearbox; an R-shaped groove matched with the positioning unit is arranged on the clamping sleeve; the front pressing sleeve is screwed on the shell, and the inner diameter of the front pressing sleeve is matched with the outer diameter of the clamping sleeve; the front end of the gear box is provided with a circular convex ring, and the outer diameter of the convex ring is matched with the inner diameter of the clamping sleeve; the positioning sleeve is sleeved on the outer edge of the convex ring; the limiting unit comprises a button arranged on the shell, a limiting column matched with the R-shaped groove is arranged on the button, and a reset spring is arranged between the button and the shell. The utility model discloses the effectual problem of taking time of having solved current product erection joint has improved connection efficiency.
Description
Technical Field
The utility model discloses the structure relates to an operation instrument for the medical treatment especially relates to a novel bone bores quick assembly card structure.
Background
In clinical orthopedic surgery, surgical tools such as bone drills, bone saws, ilium grinders and the like are frequently used, the existing surgical tools mainly comprise a hand-operated type, an electric type, a pneumatic type and the like, the electric type is usually used as much as the electric type, and the surgical tools generally comprise a body with a motor, a drill bit and other parts. Since different operations require bone drills, bone saws and the like with different specifications, a plurality of sets of joints such as drill bits, saw bits and the like need to be prepared during the operations and need to be replaced frequently. In the existing structure, the number of related parts involved in replacing the drill bit and the like is large, the replacement process is complicated, and the speed of replacing the drill bit is also influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model provides a novel bone drill quick-mounting structure to improve the efficiency of installation and change various joints, save time.
The utility model discloses a realize through following technical scheme: a novel bone drill quick clamping structure comprises a bone drill body and a drill bit, wherein the bone drill body comprises a shell, a motor and a gearbox, the motor is positioned in the shell, and the gearbox is connected with the motor; the method is characterized in that: the positioning device also comprises a limiting unit, a clamping unit, a front pressing sleeve and a positioning sleeve, wherein the front pressing sleeve and the positioning sleeve are matched with the clamping unit;
the clamping unit comprises a cylindrical clamping sleeve and a clamping head matched with the clamping sleeve, an inner shaft connected with the clamping head is connected with the clamping sleeve through a bearing, and the end part of the inner shaft is matched with an output shaft of the gearbox; an R-shaped groove matched with the positioning unit is arranged on the clamping sleeve;
the front pressing sleeve is screwed on the shell, and the inner diameter of the front pressing sleeve is matched with the outer diameter of the clamping sleeve;
the front end of the gear box is provided with a circular convex ring, and the outer diameter of the convex ring is matched with the inner diameter of the clamping sleeve;
the positioning sleeve is sleeved on the outer edge of the convex ring;
the limiting unit comprises a button arranged on the shell, a limiting column matched with the R-shaped groove is arranged on the button, and a reset spring is arranged between the button and the shell.
Further: the positioning sleeve is fixedly connected with the gearbox; and a positioning structure is arranged on the surface of the positioning sleeve matched with the clamping sleeve.
Further: the button is a column, and the reference column is installed on the button, and button one end is equipped with reset spring, and the button is installed in the casing with reset spring to it is fixed through the gland.
The utility model has the advantages that: the structure has the characteristics of simple structure, convenience in installation, quickness and reliability in clamping and the like. The utility model discloses the structure will connect working part such as unit and this body coupling through dress card, the effectual problem of taking time of having solved current product erection joint has improved connection efficiency. Meanwhile, the clamping unit is equivalent to adding a sealing device to the body, so that the pollution of pollutants generated in the operation process to the interior of the body can be effectively prevented, and the cleanness is improved; meanwhile, the interface component is easy to disassemble, and the convenience for cleaning and sterilizing the interface component is also improved.
Drawings
FIG. 1 is a schematic sectional view of the overall structure of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic structural view of a card holding sleeve and an R-shaped groove;
fig. 4 is a schematic structural diagram of the card loading unit.
The sequence numbers in the figures illustrate: the device comprises a button 1, a positioning column 2, a return spring 3, a motor 4, a gearbox 5, a convex ring 51, a clamping unit 6, a clamping sleeve 61, a clamping head 62, an inner shaft 63, a bearing 64, a front pressing sleeve 7, a positioning sleeve 8, an R-shaped groove 9 and a shell 10.
Detailed Description
As shown in fig. 1-4, the novel bone drill quick clamping structure of the present invention is used for connecting a bone drill body and a drill bit, wherein the bone drill body comprises a housing 10, a motor 4 located inside the housing, and a gearbox 5 connected to the motor; the device also comprises a limiting unit, a clamping unit 6, a front pressing sleeve 7 and a positioning sleeve 8 which are matched with the clamping unit;
the clamping unit 6 comprises a cylindrical clamping sleeve 61 and a clamping head 62 matched with the clamping sleeve, an inner shaft 63 connected with the clamping head is connected with the clamping sleeve through a bearing 64, and the end part of the inner shaft is matched with an output shaft of the gearbox; an R-shaped groove 9 matched with the positioning unit is arranged on the clamping sleeve; the R-shaped groove comprises an open inclined groove 92 for guiding the positioning column and a straight groove 91 for locking the positioning column; the chuck is used for clamping a drill bit and is of the existing structure, an inner shaft is integrally arranged on the chuck, a bearing is arranged inside the clamping sleeve, the inner diameter of the bearing is matched with the inner shaft, and the bearing is fixed inside the clamping sleeve in a mode of an elastic snap spring, a limiting block and the like;
the front pressing sleeve is screwed on the opening position of the shell, and the inner diameter of the front pressing sleeve is matched with the outer diameter of the clamping sleeve and used for providing positioning;
a circular convex ring 51 is integrally arranged at the front end of the gearbox, and the outer diameter of the convex ring is matched with the inner diameter of the clamping sleeve for positioning;
the positioning sleeve is sleeved outside the convex ring, and provides a limit for the clamping sleeve through the thickness of the positioning sleeve, so that the insertion depth of the clamping sleeve is limited;
the limiting unit comprises a button 1 arranged on the shell, the button is arranged inside a hole of the shell, one end of the limiting unit is located on the surface of the shell, the exposed part of the limiting unit can be pressed by hands, a reset spring 3 is arranged between the other end of the limiting unit and the shell and used for providing resilience force, a gland is arranged on an opening of the rotary button in a screwed mode, the inner diameter of the gland is larger than the diameter of the button and smaller than the size of a fixture block on the button, and the button can freely run within a certain range and can be prevented from being ejected out through. Be equipped with on the button with R groove matched with spacing post 2, spacing post and the perpendicular spiro union of button are connected, when the button inserts in the entrance to a cave, spacing post is put into from the opening part of body to with button spiro union connection. The opening for placing the button and the opening for installing the clamping sleeve are partially communicated, so that the limiting column can also play a role in limiting the button. In addition, the direction of the rotation of the inner shaft is adjusted to be consistent with the direction of the limiting column locking R-shaped groove, and the effect of preventing the clamping sleeve from rotating can also be achieved.
Preferably: the positioning sleeve is fixedly connected with the gearbox through clamping or bolts; and a positioning structure is arranged on the matched surface of the positioning sleeve and the clamping sleeve to prevent the positioning sleeve from rotating. The locating structure may be a protrusion and a groove, etc. that cooperate with each other.
In the structure of the utility model, the clamping sleeve carries out double positioning through the inner diameter of the front pressing sleeve and the outer diameter of the convex ring of the gearbox, and the radial positioning effect is good; the axial positioning is realized through the matching of the R-shaped groove and the limiting column; circumferential positioning is realized through the matching of the end part and the positioning sleeve; the clamping unit is reliably connected with the body through multiple positioning, and the installation and the disassembly are convenient and quick.
The utility model discloses the working process of structure as follows:
1) card installation:
required bone drill etc. is fixed well in advance on the dop that will adorn the card unit, when using, will adorn in the card unit pushes into the position sleeve, the inclined plane part and the reference column contact of the chute that the dress sheathes in, the reference column drives reset spring and inwards displaces under the thrust effect, when being adorned that the card part is whole to insert the gearbox, the front end of dress card part overcoat supports the position sleeve, can prevent excessive the insertion, at this moment, the reference column on the button gets into the straight flute of dress card part in, reset spring will automatic re-setting, thereby reached and blocked the effect that adorns the card unit, the installation finishes promptly.
2) Disassembling:
the button is pressed by a hand to push towards one side of the shell, the positioning column on the button reaches the joint of the straight groove and the inclined groove, the straight groove does not play a limiting role any more, and the clamping component can be smoothly pulled out from the shell along the axial direction.
The utility model discloses in the structure, through dress card part, can make the joint of casing and multiple different specifications realize the high-speed joint, will dress various joints of card part in advance and be equipped with, at the operation in-process, can reach quick replacement's purpose. Meanwhile, the clamping unit is better sealed at the opening of the body, so that the pollution to the inside of the body is prevented.
It should be noted that the bone drill of the present invention is a broad concept, and includes bone drills, bone saws, and acetabular bone grinders.
Furthermore, various other modifications and changes can be made by those skilled in the art based on the above technical solutions and concepts, and all such modifications and changes should fall within the protection scope of the present invention.
Claims (3)
1. A novel bone drill quick clamping structure comprises a bone drill body and a drill bit, wherein the bone drill body comprises a shell, a motor and a gearbox, the motor is positioned in the shell, and the gearbox is connected with the motor; the method is characterized in that: the positioning device also comprises a limiting unit, a clamping unit, a front pressing sleeve and a positioning sleeve, wherein the front pressing sleeve and the positioning sleeve are matched with the clamping unit;
the clamping unit comprises a cylindrical clamping sleeve and a clamping head matched with the clamping sleeve, an inner shaft connected with the clamping head is connected with the clamping sleeve through a bearing, and the end part of the inner shaft is matched with an output shaft of the gearbox; an R-shaped groove matched with the positioning unit is arranged on the clamping sleeve;
the front pressing sleeve is screwed on the shell, and the inner diameter of the front pressing sleeve is matched with the outer diameter of the clamping sleeve;
the front end of the gear box is provided with a circular convex ring, and the outer diameter of the convex ring is matched with the inner diameter of the clamping sleeve;
the positioning sleeve is sleeved outside the convex ring;
the limiting unit comprises a button arranged on the shell, a limiting column matched with the R-shaped groove is arranged on the button, and a reset spring is arranged between the button and the shell.
2. The novel bone drill quick clamping structure as claimed in claim 1, characterized in that: the positioning sleeve is fixedly connected with the gearbox; and a positioning structure is arranged on the surface of the positioning sleeve matched with the clamping sleeve.
3. The novel bone drill quick clamping structure as claimed in claim 1, characterized in that: the button is a column, and the reference column is installed on the button, and button one end is equipped with reset spring, and the button is installed in the casing with reset spring to it is fixed through the gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642625.6U CN210056145U (en) | 2019-05-07 | 2019-05-07 | Novel bone drill quick mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642625.6U CN210056145U (en) | 2019-05-07 | 2019-05-07 | Novel bone drill quick mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210056145U true CN210056145U (en) | 2020-02-14 |
Family
ID=69450808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920642625.6U Active CN210056145U (en) | 2019-05-07 | 2019-05-07 | Novel bone drill quick mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210056145U (en) |
-
2019
- 2019-05-07 CN CN201920642625.6U patent/CN210056145U/en active Active
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