CN217592977U - Reciprocating saw blade with protective sheath - Google Patents
Reciprocating saw blade with protective sheath Download PDFInfo
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- CN217592977U CN217592977U CN202221352281.3U CN202221352281U CN217592977U CN 217592977 U CN217592977 U CN 217592977U CN 202221352281 U CN202221352281 U CN 202221352281U CN 217592977 U CN217592977 U CN 217592977U
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- sheath
- saw blade
- connecting rod
- plate
- reciprocating
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Abstract
The utility model provides a reciprocating saw blade of sheath is protected in area belongs to the medical instrument field, include: the saw blade comprises a saw blade body, wherein one end of the saw blade body is provided with a cutting part, and the other end of the saw blade body is provided with a connecting part; the protective sheath is sleeved on the saw blade body and hinged with the saw blade body at a first position, and the cutting part extends out of one end of the protective sheath; the connecting rod, the saw bit body pass through connecting portion with the one end of connecting rod is articulated, the other end of connecting rod inserts power, through power drive the connecting rod reciprocating motion so as to drive the saw bit body around the reciprocal swing of first position. The utility model discloses in protect the sheath and can provide the support for the saw bit at the primary importance, reduce the distance between cutting part and the strong point, when the saw bit cutting, moment that receives when reducing the saw bit cutting guarantees the stability and the cutting efficiency of saw bit cutting, extension saw bit life.
Description
Technical Field
The utility model belongs to the field of medical equipment, especially relate to a reciprocal saw bit of sheath is protected in area.
Background
In an orthopedic surgery, a reciprocating saw blade is a common tool for sawing bones, and the reciprocating saw blade is usually connected with a saw head, and the cutting of bone tissues is realized by clamping the reciprocating saw blade by the saw head and connecting external power to drive the reciprocating saw blade to perform high-frequency reciprocating motion. The existing reciprocating saw blade is generally connected with a saw head at one end and is generally arranged in a suspended manner at the other end, the whole saw blade is supported only by the joint of the saw head and the cutting part of the saw blade is far away from the supporting position, the saw blade is easy to deform and break under stress during cutting, and the cutting efficiency, the service life and the safety of the saw blade are reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a reciprocating saw blade with a protective sheath, which is used for solving the problems of easy deformation and breakage caused by force applied to the reciprocating saw blade in the prior art.
To achieve the above and other related objects, the present invention provides a reciprocating saw blade with a protective sheath, comprising:
the saw blade comprises a saw blade body, wherein one end of the saw blade body is provided with a cutting part, and the other end of the saw blade body is provided with a connecting part;
the protective sheath is sleeved on the saw blade body and hinged with the saw blade body at a first position, and the cutting part extends out of one end of the protective sheath;
the connecting rod, the saw blade body pass through the connecting portion with the one end of connecting rod is articulated, the other end of connecting rod inserts power, through power drive the connecting rod reciprocating motion so as to drive the saw blade body around the reciprocal swing of first position.
Optionally, the first position is disposed between the connecting portion and the cutting portion.
Optionally, the connecting rod is disposed in the sheath, and an end of the connecting rod, which is far away from the connecting portion, extends out of the sheath.
Optionally, the sheath includes a first sheath portion for receiving the link and a second sheath portion for receiving the blade body.
Optionally, the sheath includes a first cover plate and a second cover plate, the second cover plate is connected with the first cover plate to form a hollow space, and the hollow space is used for accommodating the saw blade body and the connecting rod.
Optionally, the first cover plate is provided with a first top plate along the reciprocating direction of the connecting rod, the second cover plate is provided with a first bottom plate along the reciprocating direction of the connecting rod, and the first top plate and the first bottom plate cooperate to form the first sheath portion; one end that first roof and cutting part correspond to the direction of cutting part extends and forms first baffle, the one end that first bottom plate and cutting part correspond to the direction of cutting part extends and forms the second baffle, first baffle and the cooperation of second baffle form second sheath portion.
Optionally, the first cover plate is provided with a second top plate and side plates located at two sides of the second top plate along the reciprocating direction of the connecting rod, and the second top plate and the side plates at two sides form a groove for accommodating the connecting rod; the second cover plate is provided with a second bottom plate along the reciprocating direction of the connecting rod, one end of the second bottom plate is provided with a stop plate, and the groove, the second bottom plate and the stop plate are matched to form the first sheath part; one side plate of the first cover plate bends towards the axis of the space at one end corresponding to the cutting part and extends towards the direction of the cutting part to form a first baffle plate, a second bottom plate of the second cover plate bends towards the axis of the space at one end corresponding to the cutting part and extends towards the direction of the cutting part to form a second baffle plate, and the first baffle plate and the second baffle plate are matched to form the second sheath part.
Optionally, the bent portion of the side plate and the bent portion of the second bottom plate cooperate to form a limiting step for limiting the cutting depth of the cutting portion.
Optionally, a rotating shaft is arranged in the sheath corresponding to the first position, and the saw blade body is hinged with the sheath through the rotating shaft.
Optionally, a positioning step is arranged on the rotating shaft, a positioning ring is further sleeved on the rotating shaft, the positioning step and the positioning ring are oppositely arranged on two sides of the saw blade body along the axis direction of the rotating shaft, and the protective sheath and the saw blade body are positioned along the axis direction of the rotating shaft.
As mentioned above, the utility model discloses a reciprocating saw blade of sheath is protected in area has following beneficial effect: because protect the sheath saw bit including protecting the sheath, and the saw bit body is connected on protecting the sheath at the primary importance, protect the sheath and can follow the primary importance and provide the support for the saw bit, reduced the distance between cutting part and the strong point, when the saw bit cutting, the moment that receives when having reduced the saw bit cutting makes the saw bit non-deformable when the cutting, has guaranteed the stability and the cutting efficiency that the saw bit cut, has prolonged the life of saw bit.
Drawings
FIG. 1 is a perspective view of a sheath saw blade according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the saw blade body and the first cover plate according to the embodiment of the present invention;
FIG. 3 is a schematic structural view of a sheath according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the first cover plate in FIG. 3;
FIG. 5 is a schematic structural view of the second cover plate in FIG. 3;
fig. 6 is a schematic structural view of another sheath according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of the first cover plate in FIG. 6;
FIG. 8 is a schematic structural view of the second cover plate of FIG. 6;
fig. 9 is a schematic structural view of a rotating shaft and a positioning ring according to an embodiment of the present invention.
Description of the reference numerals: the saw blade comprises a saw blade body 1, a protective sheath 2, a connecting rod 3, a cutting part 4, a first position 5, a first sheath part 6, a second sheath part 7, a connecting hole 8, a second position 9, a first cover plate 10, a groove 11, a second cover plate 12, a positioning step 13, a rotating shaft 14 and a positioning ring 15. The first top plate 16, the first baffle plate 17, the first bottom plate 18, the second baffle plate 19, the second top plate 20, the second bottom plate 21, the side plate 22, the stop plate 23, the third baffle plate 24 and the fourth baffle plate 25.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms may be changed or adjusted without substantial technical changes.
Referring to fig. 1 to 9, the present embodiment provides a reciprocating saw blade with a sheath, which includes a blade body 1, a sheath 2 and a connecting rod 3. One end of the saw blade body 1 is provided with a cutting part 4, the other end of the saw blade body is provided with a connecting part, the protective sheath 2 is sleeved outside the saw blade body 1 and is hinged with the saw blade body 1 at a first position 5, and the cutting part 4 extends out of one end of the protective sheath 2. The saw blade body 1 is hinged to one end of the connecting rod 3 through the connecting portion, power is connected to the other end of the connecting rod 3, and the connecting rod 3 is driven to move in a reciprocating mode through the power to drive the saw blade body 1 to swing in a reciprocating mode around the first position 5. The cutting portion 4 can cut during the swing of the blade body 1.
In some embodiments, the second position 9 is disposed between the first position 5 and the cutting portion 4, and when the movement amplitude of the connecting rod 3 is fixed, the movement amplitude of the cutting portion 4 can be increased, and the cutting range can be increased. In this embodiment, the first position 5 is arranged between the second position 9 and the cutting section 4. The ratio of the input torque of the connecting piece and the output torque of the cutting part 4 can be adjusted by adjusting the relative positions of the cutting part 4, the second position 9 and the first position 5, so that the cutting machine is suitable for different materials to be cut.
As shown in fig. 2, the cutting portion 4 includes a plurality of teeth, and the teeth are sequentially arranged along a tangential direction of the swing path of the blade body 1. The other end of the link 3 is exposed to the sheath 2. One end of the connecting rod 3 exposed out of the sheath 2 is provided with a connecting hole 8 for connecting with a driving mechanism, and the driving mechanism is connected on the connecting rod 3 through the connecting hole 8.
As shown in fig. 3 and 4, the sheath 2 of the present embodiment includes a first sheath portion 6 and a second sheath portion 7, the first sheath portion 6 is used for accommodating the connecting rod 3, and the second sheath portion 7 is used for accommodating the blade body 1. Specifically, the sheath 2 includes a first cover plate 10 and a second cover plate 12, and the second cover plate 12 is connected to the first cover plate 10 to form a hollow space, and the hollow space is used for accommodating the saw blade body 1 and the connecting rod 3. In practical applications, the first cover plate 10 and the second cover plate 12 may be connected by a snap fit or a welding.
In some embodiments, as shown in fig. 3 to 5, the first cover plate 10 is provided with a first top plate 16 along the reciprocating direction of the connecting rod 3, the second cover plate 12 is provided with a first bottom plate 18 along the reciprocating direction of the connecting rod 3, and the first top plate 16 and the first bottom plate 18 cooperate to form the first sheath portion 6. One end of the first top plate 16 corresponding to the cutting part 4 extends towards the cutting part 4 to form a first baffle 17, one end of the first bottom plate 18 corresponding to the cutting part extends towards the cutting part to form a second baffle 19, and the first baffle 17 and the second baffle 19 are matched to form a second sheath part 7.
In other embodiments, as shown in fig. 6 to 8, the first cover plate 10 has a second top plate 20 and side plates 22 located at both sides of the second top plate 20 in the reciprocating direction of the link, the second top plate 20 and the side plates 22 at both sides forming a recess 11 for receiving the link; the second cover plate 12 is provided with a second bottom plate 21 along the reciprocating direction of the connecting rod 3, one end of the second bottom plate 21 is provided with a stop plate 23, and the groove 11, the second bottom plate 21 and the stop plate 23 are matched to form a first sheath part 6; one side plate 22 of the first cover plate 10 is bent at the end corresponding to the cutting part 4 to the axis of the space and extends to the direction of the cutting part 4 to form a third baffle plate 24, the second bottom plate 21 of the second cover plate is bent at the end corresponding to the cutting part to the axis of the space and extends to the direction of the cutting part to form a fourth baffle plate 25, and the third baffle plate 24 and the fourth baffle plate 25 are matched to form a second sheath part. The groove 11 increases the avoiding space of the connecting rod 3 and prevents the connecting rod 3 from interfering with the sheath 2 in the moving process. The bent portions of the side plates 22 cooperate with the bent portions of the top plate to form a limiting step for limiting the cutting depth of the cutting portions. The bent portion of the side plate 22 cooperates with the bent portion of the second bottom plate 21 to form a limit step for limiting the cutting depth of the cutting portion 4.
In the present embodiment, as shown in fig. 9, a rotating shaft 14 is provided in the sheath 2 corresponding to the first position 5, and the blade body 1 is hinged in the sheath 2 via the rotating shaft 14. Specifically, the rotating shaft 14 is provided with a positioning step 13, the rotating shaft 14 is further sleeved with a positioning ring 15, the positioning step 13 and the positioning ring 15 are arranged on two sides of the saw blade body 1 along the axial direction of the rotating shaft 14, the protective sheath 2 body is positioned in the axial direction of the rotating shaft 14, and the saw blade body 1 is prevented from moving in the axial direction of the rotating shaft 14.
In conclusion, the reciprocating saw blade with the protective sheath provided by the embodiment comprises the protective sheath 2, the saw blade body 1 is connected to the protective sheath 2 at the first position 5, the protective sheath 2 can support the saw blade body 1 from the first position 5, the distance between the cutting part 4 and the supporting point is reduced, when the saw blade body 1 is used for cutting, the received torque when the saw blade body 1 is used for cutting is reduced, the saw blade body 1 is not easy to deform during cutting, the cutting stability and the cutting efficiency of the saw blade body 1 are ensured, and the service life of the saw blade body 1 is prolonged. The reciprocating saw blade with the protective sheath provided by the embodiment can be matched with a telescopic driving mechanism of a cutting machine head of a traditional telescopic saw for use, and the existing equipment is fully utilized.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. It will be apparent to those skilled in the art that modifications and variations can be made to the above-described embodiments without departing from the spirit and scope of the invention, and it is intended that all equivalent modifications and variations be covered by the appended claims without departing from the spirit and scope of the invention.
Claims (10)
1. A reciprocating saw blade with a guard sheath, comprising:
the saw blade comprises a saw blade body, wherein one end of the saw blade body is provided with a cutting part, and the other end of the saw blade body is provided with a connecting part;
the protective sheath is sleeved on the saw blade body and hinged with the saw blade body at a first position, and the cutting part extends out of one end of the protective sheath;
the connecting rod, the saw bit body pass through connecting portion with the one end of connecting rod is articulated, the other end of connecting rod inserts power, through power drive the connecting rod reciprocating motion so as to drive the saw bit body around the reciprocal swing of first position.
2. The reciprocating saw blade with the sheath of claim 1, wherein: the first position is disposed between the connecting portion and the cutting portion.
3. The reciprocating saw blade with the sheath of claim 1, wherein: the connecting rod is arranged in the sheath, and one end, far away from the connecting part, of the connecting rod extends out of the sheath.
4. The reciprocating saw blade with a sheath of claim 3, wherein: the sheath comprises a first sheath part for accommodating the connecting rod and a second sheath part for accommodating the saw blade body.
5. The reciprocating saw blade with the sheath of claim 4, wherein: the protective sheath comprises a first cover plate and a second cover plate, the second cover plate is connected with the first cover plate to form a hollow space, and the hollow space is used for accommodating the saw blade body and the connecting rod.
6. The reciprocating saw blade with the sheath of claim 5, wherein: the first cover plate is provided with a first top plate along the reciprocating direction of the connecting rod, the second cover plate is provided with a first bottom plate along the reciprocating direction of the connecting rod, and the first top plate and the first bottom plate are matched to form the first sheath part; one end that first roof and cutting part correspond to the direction of cutting part extends and forms first baffle, the one end that first bottom plate and cutting part correspond to the direction of cutting part extends and forms the second baffle, first baffle and the cooperation of second baffle form second sheath portion.
7. The reciprocating saw blade with the sheath of claim 5, wherein: the first cover plate is provided with a second top plate and side plates positioned on two sides of the second top plate along the reciprocating direction of the connecting rod, and the second top plate and the side plates on two sides form a groove for accommodating the connecting rod; the second cover plate is provided with a second bottom plate along the reciprocating direction of the connecting rod, one end of the second bottom plate is provided with a stop plate, and the groove, the second bottom plate and the stop plate are matched to form the first sheath part; one side plate of the first cover plate bends towards the axis of the space at one end corresponding to the cutting part and extends towards the direction of the cutting part to form a first baffle plate, a second bottom plate of the second cover plate bends towards the axis of the space at one end corresponding to the cutting part and extends towards the direction of the cutting part to form a second baffle plate, and the first baffle plate and the second baffle plate are matched to form the second sheath part.
8. The reciprocating saw blade with a sheathing according to claim 7, wherein the bent portion of the side plate cooperates with the bent portion of the second base plate to form a limit step for limiting a cutting depth of the cutting portion.
9. The reciprocating saw blade with a sheath of claim 1, wherein: a rotating shaft is arranged in the protective sheath corresponding to the first position, and the saw blade body is hinged with the protective sheath through the rotating shaft.
10. The reciprocating saw blade with the sheath of claim 9, wherein: the saw bit is characterized in that a positioning step is arranged on the rotating shaft, a positioning ring is further sleeved on the rotating shaft, the positioning step and the positioning ring are oppositely arranged on two sides of the saw bit body along the axis direction of the rotating shaft, and the protective sheath and the saw bit body are positioned along the axis direction of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221352281.3U CN217592977U (en) | 2022-05-31 | 2022-05-31 | Reciprocating saw blade with protective sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221352281.3U CN217592977U (en) | 2022-05-31 | 2022-05-31 | Reciprocating saw blade with protective sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217592977U true CN217592977U (en) | 2022-10-18 |
Family
ID=83587554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221352281.3U Active CN217592977U (en) | 2022-05-31 | 2022-05-31 | Reciprocating saw blade with protective sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217592977U (en) |
-
2022
- 2022-05-31 CN CN202221352281.3U patent/CN217592977U/en active Active
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