CN218016165U - Saw blade quick-changing device of reciprocating saw and application structure thereof - Google Patents
Saw blade quick-changing device of reciprocating saw and application structure thereof Download PDFInfo
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- CN218016165U CN218016165U CN202220579862.4U CN202220579862U CN218016165U CN 218016165 U CN218016165 U CN 218016165U CN 202220579862 U CN202220579862 U CN 202220579862U CN 218016165 U CN218016165 U CN 218016165U
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Abstract
The utility model discloses a quick change device for a reciprocating saw blade and an application structure thereof, wherein the quick change device for the reciprocating saw blade comprises a quick change frame and a quick change frame bottom plate fixed on the reciprocating saw, and one end of the quick change frame is rotationally connected with one end of the quick change frame bottom plate through a rotating shaft; the projection length of the structure at the other end of the quick change frame in the linear reciprocating direction of the reciprocating rod of the reciprocating saw is larger than the linear reciprocating stroke of the reciprocating rod. The application structure of the reciprocating saw blade quick-change device comprises a reciprocating saw body and the reciprocating saw blade quick-change device, wherein the reciprocating rod, the saw blade chuck clamping device and the outer side of the saw blade are sleeved with the reciprocating saw blade quick-change device. The utility model has the advantages of it is following: after the machine is stopped, a user can replace the saw blade when the saw blade chuck clamping device stays at any position; the fatigue of a user caused by frequent replacement of the saw blade for a long time is reduced; the user need not to dress thermal-insulated protective equipment or wait for the saw bit chuck locking device temperature to reduce to safe range and change the saw bit again.
Description
Technical Field
The utility model relates to a reciprocating saw bit quick change device and application structure thereof belongs to reciprocating saw part technical field.
Background
Due to the limitation of the machine structure, the saw blade cartridge locking device 5 of some reciprocating saws on the market cannot be stopped at any position by a user to replace the saw blade after the machine is stopped, and only when the saw blade cartridge locking device 5 is stopped at the outermost side, the user can rotate the saw blade cartridge locking device 5 by hand to replace the saw blade 6, so that the efficiency of replacing the saw blade 6 by the user is reduced, as shown in fig. 1 to 3.
And because the blade chuck locking device 5 needs to overcome self rotating force when rotating and the operation surface is small, the user needs to rotate the blade chuck locking device 5 with large force to replace the saw blade 6, and the user can be fatigued more easily when frequently replacing the saw blade 6 for a long time.
Secondly, because the long-time cutting work of reciprocating saw, the heat that the saw bit 6 cutting work piece friction produced and the heat that reciprocating rod 7 self friction produced make saw bit chuck locking device 5 temperature very high, it is dangerous to take place to scald very easily when changing saw bit 6, therefore the user can't directly rotate saw bit chuck locking device 5 with the hand, must wear thermal-insulated protective equipment or wait for the temperature to reduce and just can change saw bit 6, the user also can't judge when not wearing thermal-insulated what protective equipment whether 5 temperatures of saw bit chuck locking device reduce to the safety range, the user takes place to scald danger because 5 high temperatures of saw bit chuck locking device very easily, greatly reduced the user and changed efficiency and the security of saw bit 6.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: after the machine is stopped, how to enable the saw blade chuck locking device to stop at any position to replace the saw blade and avoid fatigue and scald caused by manually rotating the saw blade chuck locking device.
In order to solve the technical problem, the technical scheme of the utility model is to provide a saw blade quick-changing device of a reciprocating saw, which is characterized by comprising a quick-changing frame and a quick-changing frame bottom plate fixed on the reciprocating saw, wherein one end of the quick-changing frame is rotationally connected with one end of the quick-changing frame bottom plate through a rotating shaft; the projection length of the structure at the other end of the quick change frame in the linear reciprocating direction of the reciprocating rod of the reciprocating saw is larger than the linear reciprocating stroke of the reciprocating rod.
Preferably, the rotating shaft is sleeved with a torsion spring, and two ends of the torsion spring are respectively connected with one end of the quick-change frame and one end of the quick-change frame bottom plate.
Preferably, the quick-change frame comprises a quick-change frame body and a contact rod, one end of the quick-change frame body is connected with one end of the quick-change frame bottom plate through a rotating shaft, and the contact rod is arranged at the other end of the quick-change frame body; the length of the contact rod is larger than the linear reciprocating stroke of the reciprocating rod.
Preferably, the length direction of the contact rod is parallel to the linear reciprocating stroke direction of the reciprocating rod.
Preferably, the contact surface of the quick-change frame body and the fingers of the operator is an ergonomically designed structure.
An application structure of a quick change device for a saw blade of a reciprocating saw is characterized by comprising a reciprocating saw body and the quick change device for the saw blade of the reciprocating saw, wherein the quick change device for the saw blade of the reciprocating saw is sleeved on a reciprocating rod, a clamping device for a chuck of the saw blade and the outer side of the saw blade; when the reciprocating saw works, the saw blade quick-changing device of the reciprocating saw is not in contact with the reciprocating rod, the saw blade chuck clamping device and the saw blade; when the reciprocating saw is stopped and the saw blade is replaced, the other end of the quick-change frame rotates and abuts against the position of the unlocking saw blade on the saw blade chuck clamping device.
The utility model relates to an application of saw bit quick change device in reciprocating saw. Compared with the prior art, the utility model has the advantages of it is following:
1. after the machine (i.e., the reciprocating saw) is shut down, the user can replace the saw blade while the blade cartridge clamp remains in any position.
2. The user passes through the utility model discloses a quick change device's lever principle and have ergonomic design (increase contact surface) quick change frame, can light change the saw bit by one hand, reduce the fatigue that the user produced because frequently change the saw bit for a long time.
3. The user need not to dress thermal-insulated protective equipment or wait for the saw bit chuck locking device temperature to reduce to safe range and change the saw bit again. When the machine works, the quick-change frame is not in contact with the reciprocating rod, the saw blade chuck clamping device and the saw blade, only a small part of heat generated by friction of a saw blade cutting workpiece and heat generated by self friction of the reciprocating rod is generated, and the temperature of the quick-change frame is low.
Drawings
FIG. 1 is a schematic view of an original reciprocating saw (the blade cartridge clamp is located inside);
FIG. 2 is a schematic view of a prior art reciprocating saw (the blade cartridge clamp is located on the outside);
FIG. 3 is an isometric view of FIG. 2;
FIG. 4 is a view showing a state of use of the quick change device for the saw blade of the reciprocating saw;
fig. 5 is a schematic structural view of a saw blade quick-change device of a reciprocating saw.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
The utility model provides a reciprocating saw bit quick change device, as shown in fig. 5, it includes quick change frame 1, torsional spring 2, pivot 3, quick change frame bottom plate 4, rotates through pivot 3 between the one end of quick change frame 1 and the one end of quick change frame bottom plate 4 to be connected, and the cover has torsional spring 2 in the pivot 3, and the one end of quick change frame 1 and the one end of quick change frame bottom plate 4 are connected respectively to the both ends of torsional spring 2. The quick-change frame base plate 4 is fixed on a machine (namely a reciprocating saw) through screws, and the quick-change frame 1 rotates around the rotating shaft 3. After the quick-change frame 1 is manually rotated, the quick-change frame 1 automatically rotates to the initial position under the action of the torsion force of the torsion spring 2. The projection length of the contact rod 12 of the quick change frame 1 in the linear reciprocating direction of the reciprocating rod 7 is greater than the linear reciprocating stroke of the reciprocating rod 7.
The quick-change frame 1 comprises a quick-change frame body 11 and a contact rod 12, one end of the quick-change frame body 11 is connected with one end of a quick-change frame bottom plate 4 through a rotating shaft 3, a torsion spring 2 is arranged, and the contact rod 12 is fixed at the other end of the quick-change frame body 11. The finger contact surface of the quick-change holder body 11 with the operator is an ergonomically designed structure (in this embodiment, a finger contact surface is added to the quick-change holder body 11 near the end of the other end). The length of the contact rod 12 is greater than the movement distance (reciprocating stroke) of the reciprocating lever 7 or the blade holder clamp 5. The direction of movement (direction of reciprocating stroke) of the reciprocating lever 7 or the blade holder clamp 5 is parallel to the length direction of the contact rod 12. Wherein, the quick-change frame 1 composed of the quick-change frame body 11 and the contact rod 12 is an integrated structure.
Reciprocating saw is at the during operation, the utility model discloses an arbitrary part on the reciprocating saw bit quick change device 8 all with reciprocating lever 7, saw bit chuck clamping device 5, saw bit 6 contactless, quick change frame body 11 rotates certain angle round pivot 3 after, contact lever 12 withstands saw bit chuck clamping device 5, continues to rotate quick change frame body 11, can make saw bit chuck clamping device 5 loosen saw bit 6 to unblock and change saw bit 6.
The contact lever 12 on the quick-change rack 1 can drive the blade chuck clamping device 5 to unlock the saw blade 6 at any position. The quick-change frame 1 is designed through human engineering, the finger contact surface is increased, and the operation is convenient. The quick-change frame 1, the rotating shaft 3 and the quick-change frame bottom plate 4 form a lever, so that a user can replace the saw blade 6 more labor-saving. When the machine works, the quick-change frame 1 is not in contact with the reciprocating rod 7, the saw blade chuck clamping device 5 and the saw blade 6, the temperature of the quick-change frame 1 is very low, and a user can directly rotate the quick-change frame 1 to replace the new saw blade 6.
The utility model also provides an application structure of the reciprocating saw blade quick-change device, which comprises a reciprocating saw body and a reciprocating saw blade quick-change device 8, wherein the reciprocating saw blade quick-change device 8 is sleeved outside the reciprocating rod 7, the saw blade chuck clamping device 5 and the saw blade 6, the quick-change frame bottom plate 4 is fixed on the reciprocating saw body and is positioned below the saw blade chuck clamping device 5, and the other end of the quick-change frame body 11 is pressed on the reciprocating saw body and is positioned on one side of the saw blade chuck clamping device 5 under the action of the torsional spring 2; when the reciprocating saw works, the saw blade quick-changing device 8 of the reciprocating saw is not in contact with the reciprocating rod 7, the saw blade chuck clamping device 5 and the saw blade 6; when the reciprocating saw is stopped and the saw blade is replaced, the other end of the quick-change frame 1 rotates and abuts against the position of the unlocking saw blade 6 on the saw blade chuck clamping device 5.
As shown in fig. 4, the utility model is used as follows:
after the machine is shut down, the user manually rotates the quick change frame 1, the quick change frame 1 can order about the rotation of saw bit chuck clamping device 5 after rotating a certain angle, thereby unblock saw bit 6, the user gets off old saw bit 6, change new saw bit 6, saw bit 6 changes the completion back, cancel manual power, quick change frame 1 is automatic under the torsion effect of torsional spring 2 and is turned around to the initial position, and simultaneously, through the reset spring on the saw bit chuck clamping device 5, make saw bit chuck clamping device 5 reset, thereby make saw bit chuck clamping device 5 pin new saw bit 6, quick change frame 1 continues to rotate under the torsion effect of torsional spring 2, until the initial position, the machine can normally work.
Through the utility model discloses a reciprocating saw bit quick change device 8 for no matter the user stops in the machine behind the shut down saw bit chuck clamping device 5 can both the quick replacement saw bit 6 in the optional position.
Claims (6)
1. A quick change device for a saw blade of a reciprocating saw is characterized by comprising a quick change frame (1) and a quick change frame bottom plate (4) fixed on the reciprocating saw, wherein one end of the quick change frame (1) is rotatably connected with one end of the quick change frame bottom plate (4) through a rotating shaft (3); the projection length of the structure at the other end of the quick change frame (1) in the linear reciprocating direction of the reciprocating rod (7) of the reciprocating saw is greater than the linear reciprocating stroke of the reciprocating rod (7).
2. The quick-change device for the saw blade of the reciprocating saw as claimed in claim 1, wherein the rotating shaft (3) is sleeved with a torsion spring (2), and two ends of the torsion spring (2) are respectively connected with one end of the quick-change frame (1) and one end of the quick-change frame bottom plate (4).
3. The quick-change device for the saw blade of the reciprocating saw as claimed in claim 1, wherein the quick-change frame (1) comprises a quick-change frame body (11) and a contact rod (12), one end of the quick-change frame body (11) is connected with one end of the quick-change frame bottom plate (4) through the rotating shaft (3), and the contact rod (12) is arranged at the other end of the quick-change frame body (11); the length of the contact rod (12) is larger than the linear reciprocating stroke of the reciprocating rod (7).
4. A quick-change device for saw blades of reciprocating saws as defined in claim 3, characterized in that the length direction of said contact rod (12) is parallel to the linear reciprocating stroke direction of said reciprocating rod (7).
5. A saw blade quick-change device for a reciprocating saw as defined in claim 3, wherein the contact surface of the quick-change holder body (11) with the fingers of the operator is ergonomically designed.
6. An application structure of a quick-change device for a saw blade of a reciprocating saw, which is characterized by comprising a reciprocating saw body and the quick-change device (8) for the saw blade of the reciprocating saw as claimed in any one of claims 1 to 5, wherein the quick-change device (8) for the saw blade of the reciprocating saw is sleeved on the reciprocating rod (7), the clamping device (5) for a saw blade chuck and the outer side of the saw blade (6); when the reciprocating saw works, the saw blade quick-changing device (8) of the reciprocating saw is not in contact with the reciprocating rod (7), the saw blade chuck clamping device (5) and the saw blade (6); when the reciprocating saw is stopped and the saw blade is replaced, the other end of the quick-change frame (1) rotates and abuts against the position of the unlocking saw blade (6) on the saw blade chuck clamping device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220579862.4U CN218016165U (en) | 2022-03-14 | 2022-03-14 | Saw blade quick-changing device of reciprocating saw and application structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220579862.4U CN218016165U (en) | 2022-03-14 | 2022-03-14 | Saw blade quick-changing device of reciprocating saw and application structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218016165U true CN218016165U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220579862.4U Active CN218016165U (en) | 2022-03-14 | 2022-03-14 | Saw blade quick-changing device of reciprocating saw and application structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218016165U (en) |
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2022
- 2022-03-14 CN CN202220579862.4U patent/CN218016165U/en active Active
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