CN215079015U - Craniotome saw with dust absorption protection structure - Google Patents
Craniotome saw with dust absorption protection structure Download PDFInfo
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- CN215079015U CN215079015U CN202121530720.0U CN202121530720U CN215079015U CN 215079015 U CN215079015 U CN 215079015U CN 202121530720 U CN202121530720 U CN 202121530720U CN 215079015 U CN215079015 U CN 215079015U
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- saw
- protective cover
- craniotome
- saw blade
- dust absorption
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Abstract
The utility model relates to a craniotome saw with a dust absorption protection structure, which comprises a craniotome saw body, wherein an open type protective cover is correspondingly sleeved at the position of a saw blade of the craniotome saw body, an air suction interface is arranged at the top of the protective cover, the protective cover is sleeved on the saw blade, and the edge of the saw blade extends out of the open type protective cover; the opening position of the protective cover inclines back to one side away from the saw blade, a fixed sleeve is arranged on one side of the protective cover facing the craniotome saw body, and a locking knob penetrates through the fixed sleeve; the included angle between the air suction interface and the surface where the protective cover is located is arranged, and the air suction structure inclines towards one side of the craniotomy saw body. The protective cover is sleeved on the saw blade, so that impurities such as skull fragments and the like are prevented from splashing to the forensic when the saw blade runs; the top of the protective cover is obliquely provided with an air suction interface for connecting an external air pump, so that generated fragments and harmful aerosol can be sucked in time, and the safety of the working environment of the forensic doctor is guaranteed.
Description
Technical Field
The utility model relates to the technical field of forensic tools, in particular to a craniotome saw with a dust absorption protection structure.
Background
Craniotomy examination of cadavers using a craniotomy saw is a key task for the cause of death examination of cadavers in forensic dissection. When the skull opening saw blade cuts the skull at a high speed, harmful aerosol and splashed skull debris can be generated, the aerosol and the skull debris are harmful to the health of a forensic, and particularly, when the skull opening is carried out on an infected corpse, the forensic has great risk in the operation under the unprotected or low-protected state.
SUMMERY OF THE UTILITY MODEL
The utility model provides a shortcoming among the above-mentioned prior production technique provides a rational in infrastructure has dust absorption protective structure's craniotomy saw for install in the saw bit position, prevent that the splash that the saw bit operation was taken up from splashing on the forensic, and be connected with the suction region that can suck away impurity, thereby ensure the operating environment safety of forensic.
The utility model discloses the technical scheme who adopts as follows:
a craniotome saw with a dust absorption protection structure comprises a craniotome saw body, wherein an open type protection cover is correspondingly sleeved at the position of a saw blade of the craniotome saw body, the top of the protection cover is provided with a suction port,
the protective cover is sleeved on the saw blade, and the edge of the saw blade extends out of the opening of the protective cover; the open position of the protective cover is inclined to the side back to the saw blade,
a fixed sleeve is arranged on one side of the protective cover facing the craniotome saw body, and a locking knob penetrates through the fixed sleeve;
the included angle between the air suction interface and the surface where the protective cover is located is arranged, and the air suction structure inclines towards one side of the craniotomy saw body.
The protective cover comprises two blocking pieces parallel to the saw blade and an arc piece connected between the blocking pieces, wherein straight plates deviating from the saw blade are arranged at two ends of the arc piece, and the blocking pieces, the arc piece and the straight plates are connected in a sealing mode.
The fixed sleeve and the transmission shaft of the saw blade are coaxially arranged, and the locking knob is arranged on one side of the fixed sleeve facing the air suction interface.
The uncovered one end of protection casing is the plane setting, and the terminal surface that fixed cover is close to protection casing one end pastes with the protection casing is concentric mutually, and the excircle profile of fixed cover radially surpasss the uncovered terminal surface setting of protection casing.
The fixed cover comprises a first cover body close to the protective cover, and a second cover body in threaded connection or interference fit with the first cover body, and the locking knob penetrates through the second cover body.
The air suction interface comprises a first interface part connected with the protective cover and a second interface part assembled with the first interface part; the first interface part and the second interface part are coaxially arranged after being assembled.
The included angle between the air suction interface and the central axis of the fixed sleeve ranges from 45 degrees to 50 degrees.
The radius range of the arc-shaped piece of the protective cover is 36-40 mm.
The included angle between the straight plate and the tangent line of the arc-shaped sheet ranges from 10 degrees to 15 degrees.
The length of the opening of the protective cover perpendicular to the diameter direction of the saw blade ranges from 75 mm to 80 mm.
The utility model has the advantages as follows:
the utility model has compact and reasonable structure and convenient operation, and prevents impurities such as skull fragments and the like from splashing to the forensic through sleeving the protective cover on the saw blade when the saw blade runs; the top of the protective cover is obliquely provided with an air suction interface for connecting an external air pump, so that generated fragments and harmful aerosol can be sucked in time, and the safety of the working environment of the forensic doctor is guaranteed.
The protective cover of the utility model can cover two thirds of the area of the saw blade, and the two sides of the protective cover are expanded and inclined outwards so as to cover a wider splashing area; the expansion port of the protective cover has the characteristics of a plurality of suction ranges, and better convergence of the aerosol and the debris in the semi-arc protective cover, so that the harmful aerosol and the debris generated during craniotomy can be quickly and efficiently sucked away, and the dispersion phenomenon is not easy to occur.
A certain distance is reserved between the front blocking piece and the rear blocking piece of the protective cover, so that on one hand, the saw blade can be replaced in sufficient space on the premise of not taking down the protective cover; on the other hand, a certain suction space can be provided, and several high-efficiency suction effects are achieved.
The suction structure in the utility model is inclined so that the external suction hose can be led out along the direction of the skull-cutting saw body, thereby being not easy to occupy the operating space of the forensic and not blocking the observation sight of the forensic during the skull cutting.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is the overall structure schematic diagram of the protective cover of the present invention.
Fig. 5 is a front view of the protective cover of the present invention, which is used to show the size of the protective cover.
Fig. 6 is a cross-sectional view of the middle protective cover of the present invention.
Wherein: 1. a craniotome saw body; 2. a saw blade; 3. a protective cover; 4. an air intake interface; 5. fixing a sleeve; 6. locking the knob;
301. a baffle plate; 302. an arc-shaped sheet; 303. a straight plate;
401. a first interface section; 402. a second interface part;
501. a first sleeve body; 502. a second sleeve body.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-6, the craniotome saw with the dust absorption protection structure of the embodiment comprises a craniotome saw body 1, an open type protection cover 3 is correspondingly sleeved at the position of a saw blade 2 of the craniotome saw body 1, a suction port 4 is arranged at the top of the protection cover 3,
the protective cover 3 is sleeved on the saw blade 2, and the edge of the saw blade 2 extends out of the opening of the protective cover 3; the open position of the protective cover 3 inclines to the side away from the saw blade 2,
a fixed sleeve 5 is arranged on one side of the protective cover 3 facing the craniotomy saw body 1, and a locking knob 6 penetrates through the fixed sleeve 5;
the included angle between the surface of the air suction interface 4 and the surface of the protective cover 3 is arranged, and the air suction structure inclines towards one side of the craniotomy saw body 1.
The protective cover 3 comprises two blocking pieces 301 parallel to the saw blade 2 and an arc piece 302 connected between the blocking pieces 301, two ends of the arc piece 302 are provided with straight plates 303 obliquely arranged away from the saw blade 2, and the blocking pieces 301, the arc piece 302 and the straight plates 303 are connected in a sealing manner.
The fixed sleeve 5 and the transmission shaft of the saw blade 2 are coaxially arranged, and the locking knob 6 is arranged on one side of the fixed sleeve 5 facing the air suction interface 4.
The uncovered one end of protection casing 3 is the plane setting, and the terminal surface that fixed cover 5 is close to 3 one end of protection casing pastes with protection casing 3 is concentric mutually, and the excircle profile of fixed cover 5 radially surpasss the uncovered terminal surface setting of protection casing 3.
The fixed sleeve 5 comprises a first sleeve body 501 close to the protective cover 3 and a second sleeve body 502 in threaded connection or interference fit with the first sleeve body 501, and the locking knob 6 penetrates through the second sleeve body 502.
The air intake port 4 includes a first port 401 connected to the shield 3, and a second port 402 attached to the first port 401; first interface portion 401 and second interface portion 402 are coaxially disposed after being assembled.
The included angle between the air suction port 4 and the central axis of the fixing sleeve 5 ranges from 45 degrees to 50 degrees.
The radius of the arc-shaped piece 302 of the protective cover 3 is in the range of 36-40 mm.
The included angle between the straight plate 303 and the tangent line of the arc-shaped sheet 302 ranges from 10 degrees to 15 degrees.
The length of the opening of the protective cover 3 perpendicular to the diameter direction of the saw blade 2 ranges from 75 mm to 80 mm.
The specific structure and working process of the embodiment are as follows:
as shown in fig. 1 and 2, a saw blade 2 is arranged at the top end of a craniotome saw body 1, a protective cover 3 is additionally arranged at the saw blade 2, as shown in fig. 4, the protective cover 3 comprises a front semicircular blocking piece 301 and a rear semicircular blocking piece 301, an arc piece 302 is connected at the arc position of the blocking piece 301, two ends of the arc piece 302 are respectively provided with a straight plate 303, the straight plates 303 are inclined towards the left side and the right side and are opened, and the open length of the protective cover 3 is increased.
The protection casing 3 in this embodiment adopts semitransparent material, covers two-thirds the 2 areas of saw bit, and the arc radius of protection casing 3 is 38mm, and the straight board 303 of the left and right sides leans out, and is 12 with the contained angle between the tangent line, and the length of uncovered position sets up to 80mm, and the interval between two front and back baffles is 50 mm. The diameter of the saw blade 2 can be between 52 mm and 65mm, and the saw blade 2 with the diameter of 55mm is taken as an example in the embodiment; the suction connection 4 is, for example, oriented in fig. 6 at an angle of 50 ° to the horizontal. The dimensions refer to fig. 5 and 6.
In the embodiment, the fixed sleeve 5 is made of metal, so that the connection strength and reliability of the protective cover 3 and the craniotome saw can be improved, and the protective cover 3 is not easy to loosen when the craniotome saw is swung.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (10)
1. The utility model provides a craniotomy saw with dust absorption protective structure which characterized in that: comprises a craniotome saw body (1), an open type protective cover (3) is correspondingly sleeved at the position of a saw blade (2) of the craniotome saw body (1), an air suction interface (4) is arranged at the top of the protective cover (3),
the protective cover (3) is sleeved on the saw blade (2), and the edge of the saw blade (2) extends out of the opening of the protective cover (3); the open position of the protective cover (3) inclines to the side departing from the saw blade (2),
a fixing sleeve (5) is arranged on one side of the protective cover (3) facing the craniotomy saw body (1), and a locking knob (6) penetrates through the fixing sleeve (5);
the included angle between the surface where the air suction interface (4) and the protective cover (3) are located is arranged, and the air suction structure inclines towards one side of the craniotomy saw body (1).
2. The craniotome saw with dust absorption and protection structure as set forth in claim 1, wherein: the protective cover (3) comprises two blocking pieces (301) parallel to the saw blade (2) and an arc-shaped piece (302) connected between the blocking pieces (301), wherein straight plates (303) deviating from the saw blade (2) in an inclined mode are arranged at two ends of the arc-shaped piece (302), and the blocking pieces (301), the arc-shaped piece (302) and the straight plates (303) are connected in a sealing mode.
3. The craniotome saw with dust absorption and protection structure as set forth in claim 2, wherein: the fixed sleeve (5) and the transmission shaft of the saw blade (2) are coaxially arranged, and the locking knob (6) is arranged on one side of the fixed sleeve (5) facing the air suction interface (4).
4. The craniotome saw with dust absorption and protection structure as in claim 3, wherein: the uncovered one end of protection casing (3) is the plane setting, and fixed cover (5) are close to the terminal surface of protection casing (3) one end and paste with protection casing (3) concentric mutually, and the excircle profile of fixed cover (5) is upwards surpassed the uncovered terminal surface setting of protection casing (3) in the footpath.
5. The craniotome saw with dust absorption and protection structure as set forth in claim 1, wherein: fixed cover (5) including be close to the first cover body (501) of protection casing (3), with first cover body (501) between threaded connection or interference fit's the second cover body (502), locking knob (6) run through on the second cover body (502).
6. The craniotome saw with dust absorption and protection structure as set forth in claim 1, wherein: the air suction interface (4) comprises a first interface part (401) connected with the protective cover (3) and a second interface part (402) assembled with the first interface part (401); the first interface part (401) and the second interface part (402) are coaxially arranged after being assembled.
7. The craniotome saw with dust absorption and protection structure as set forth in claim 1, wherein: the included angle between the air suction port (4) and the central axis of the fixing sleeve (5) ranges from 45 degrees to 50 degrees.
8. The craniotome saw with dust absorption and protection structure as set forth in claim 2, wherein: the radius range of the arc-shaped sheet (302) of the protective cover (3) is 36-40 mm.
9. The craniotome saw with dust absorption and protection structure as set forth in claim 2, wherein: the included angle between the straight plate (303) and the tangent line of the arc-shaped sheet (302) ranges from 10 degrees to 15 degrees.
10. The craniotome saw with dust absorption and protection structure as set forth in claim 2, wherein: the length range of the opening of the protective cover (3) which is vertical to the diameter direction of the saw blade (2) is 75-80 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530720.0U CN215079015U (en) | 2021-07-06 | 2021-07-06 | Craniotome saw with dust absorption protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530720.0U CN215079015U (en) | 2021-07-06 | 2021-07-06 | Craniotome saw with dust absorption protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215079015U true CN215079015U (en) | 2021-12-10 |
Family
ID=79314202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121530720.0U Active CN215079015U (en) | 2021-07-06 | 2021-07-06 | Craniotome saw with dust absorption protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215079015U (en) |
-
2021
- 2021-07-06 CN CN202121530720.0U patent/CN215079015U/en active Active
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